From 95d1d661bb06e509b24b392c3b61b69ee2629703 Mon Sep 17 00:00:00 2001 From: hackyminer Date: Mon, 16 Apr 2018 10:44:13 +0900 Subject: [PATCH 01/10] getHashrates() added --- routes/stats.js | 30 ++++++++++++++++++++++++++++++ 1 file changed, 30 insertions(+) diff --git a/routes/stats.js b/routes/stats.js index f17811087..0ddcc21bc 100644 --- a/routes/stats.js +++ b/routes/stats.js @@ -18,6 +18,9 @@ module.exports = function(req, res) { else if (req.body.action=="hashrate") getHashrate(res); + + else if (req.body.action=="hashrates") + getHashrates(res); } /** @@ -39,6 +42,33 @@ var getMinerStats = function(res) { } }); } + +/** + Aggregate network hashrates +**/ +var getHashrates = function(res) { + BlockStat.aggregate([{ + $group: { + _id: { + timestamp: { + $subtract: [ '$timestamp', { $mod: [ '$timestamp', 3600 ] } ] + } + }, + blockTime: { $avg: '$blockTime' }, + difficulty: { $max: '$difficulty' } + } + }]).sort('_id.timestamp').exec(function(err, docs) { + var hashrates = []; + docs.forEach(function(doc) { + doc.instantHashrate = doc.difficulty / doc.blockTime; + doc.unixtime = doc._id.timestamp; + doc.timestamp = doc._id.timestamp; + }); + res.write(JSON.stringify({"hashrates": docs})); + res.end(); + }); +} + /** Get hashrate Diff stuff **/ From aa753582653e954bd9cc069d7e621fb1636048db Mon Sep 17 00:00:00 2001 From: hackyminer Date: Mon, 16 Apr 2018 10:49:43 +0900 Subject: [PATCH 02/10] loadsh added --- public/js/main.js | 1 + public/plugins/lodash.min.js | 137 +++++++++++++++++++++++++++++++++++ views/index.ejs | 1 + 3 files changed, 139 insertions(+) create mode 100644 public/plugins/lodash.min.js diff --git a/public/js/main.js b/public/js/main.js index e5fe4f7da..1d381ec8f 100755 --- a/public/js/main.js +++ b/public/js/main.js @@ -4,6 +4,7 @@ var BlocksApp = angular.module("BlocksApp", [ "oc.lazyLoad", "ngSanitize" ]); +BlocksApp.constant('_', window._); // loadsh BlocksApp.config(['$ocLazyLoadProvider', '$locationProvider', function($ocLazyLoadProvider, 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[PATCH 03/10] make public/js/stats/*.js into directives * plugins/moment/*.js added * FIXME The bome chart does not work correctly --- public/js/controllers/StatsController.js | 1357 +- public/js/main.js | 19 +- public/js/stats/The_bomb_chart.js | 291 - .../js/stats/The_bomb_chart_with_ECIP_1010.js | 701 - public/js/stats/bundle_The_bomb_chart.js | 84457 --------------- .../bundle_The_bomb_chart_with_ECIP_1010.js | 84867 ---------------- public/js/stats/bundle_hashrate.js | 84414 --------------- .../js/stats/bundle_hashrate_distribution.js | 16916 --- public/js/stats/hashrate.js | 243 - public/js/stats/hashrate_distribution.js | 177 - public/js/stats/package.json | 17 - public/plugins/moment/moment.min.js | 1 + public/views/stats/index.html | 7 +- 13 files changed, 1362 insertions(+), 272105 deletions(-) delete mode 100644 public/js/stats/The_bomb_chart.js delete mode 100644 public/js/stats/The_bomb_chart_with_ECIP_1010.js delete mode 100644 public/js/stats/bundle_The_bomb_chart.js delete mode 100644 public/js/stats/bundle_The_bomb_chart_with_ECIP_1010.js delete mode 100644 public/js/stats/bundle_hashrate.js delete mode 100644 public/js/stats/bundle_hashrate_distribution.js delete mode 100644 public/js/stats/hashrate.js delete mode 100644 public/js/stats/hashrate_distribution.js delete mode 100644 public/js/stats/package.json create mode 100644 public/plugins/moment/moment.min.js diff --git a/public/js/controllers/StatsController.js b/public/js/controllers/StatsController.js index 890bf6c6b..7c3cf387c 100755 --- a/public/js/controllers/StatsController.js +++ b/public/js/controllers/StatsController.js @@ -22,5 +22,1360 @@ angular.module('BlocksApp').controller('StatsController', function($stateParams, } $rootScope.$state.current.data["pageSubTitle"] = CHART_TYPES[$stateParams.chart].title; + $scope.chart = $stateParams.chart; -}) \ No newline at end of file +}) +.directive('minersHashrate', function($http) { + return { + restrict: 'E', + template: '', + scope: true, + link: function(scope, elem, attrs) { + scope.stats = {}; + var statsURL = "/stats"; + + $http.post(statsURL, {"action": "miners"}) + .then(function(res) { + var data = _.sortBy(res.data, function(d) { + //console.log(d.count); + return d.count; + }); + scope.init(data, "#hashrate"); + }); + + /** + * Created by chenxiangyu on 2016/8/5. + */ + scope.init = function(dataset, chartid) { + var svg = d3.select(chartid) + .append("g"); + + + svg.append("g") + .attr("class", "slices"); + svg.append("g") + .attr("class", "labelName"); + svg.append("g") + .attr("class", "labelValue"); + svg.append("g") + .attr("class", "lines"); + + var width = parseInt(d3.select(chartid).style("width")); + var height = parseInt(d3.select(chartid).style("height")); + + var radius = Math.min(1000, 450) / 2; + + var pie = d3.layout.pie() + .sort(null) + .value(function (d) { + //return d.value; + //console.log(d); + return d.count; + }); + + var arc = d3.svg.arc() + .outerRadius(radius * 0.8) + .innerRadius(radius * 0.4); + + var outerArc = d3.svg.arc() + .innerRadius(radius * 0.9) + .outerRadius(radius * 0.9); + + var legendRectSize = (radius * 0.05); + var legendSpacing = radius * 0.02; + + var div = d3.select("body").append("div").attr("class", "toolTip"); + + svg.attr("transform", "translate(" + width / 2 + "," + height / 2 + ")"); + svg.attr("transform", "translate(" + 200 + "," + 200 + ")"); + + var colorRange = d3.scale.category20(); + var color = d3.scale.ordinal() + .range(colorRange.range()); + + change(dataset); + + + d3.selectAll("input") + .on("change", selectDataset); + + function selectDataset() { + var value = this.value; + if (value == "total") { + change(datasetTotal); + } + } + + function change(data) { + //console.log(data); + + /* ------- PIE SLICES -------*/ + var slice = svg.select(".slices").selectAll("path.slice") + .data(pie(data), function (d) { + //return d.data.label + //console.log(d); + return d.data._id; + }); + + slice.enter() + .insert("path") + .style("fill", function (d) { + return color(d.data._id); + }) + .attr("class", "slice"); + + slice + .transition().duration(1000) + .attrTween("d", function (d) { + this._current = this._current || d; + var interpolate = d3.interpolate(this._current, d); + this._current = interpolate(0); + return function (t) { + return arc(interpolate(t)); + }; + }) + slice + .on("mousemove", function (d) { + div.style("left", d3.event.pageX + 10 + "px"); + div.style("top", d3.event.pageY - 25 + "px"); + div.style("display", "inline-block"); + div.html((d.data._id) + "
" + (d.data.count) + " "); + }); + slice + .on("mouseout", function (d) { + div.style("display", "none"); + }); + + slice.exit() + .remove(); + + //console.log(data.length); + + var legend = svg.selectAll('.legend') + //.data(color.domain()) + .data(data) + .enter() + .append('g') + .attr('class', 'legend') + .attr('transform', function (d, i) { + var height = legendRectSize + legendSpacing; + var offset = height * color.domain().length / 2; + var horz = -3 * legendRectSize; + //var vert = i * height - offset; + var vert = i * height - offset; + return 'translate(' + 250 + ',' + vert + ')'; + }); + + legend.append('rect') + .attr('width', legendRectSize) + .attr('height', legendRectSize) + .style('fill', function (d,i) { + //console.log(i); + return color(d._id); + }) + .style('stroke', color); + + legend.append('text') + + .attr('x', legendRectSize + legendSpacing) + .attr('y', legendRectSize - legendSpacing) + .text(function (d) { + //console.log(d); + return d._id; + }); + + + } + } + } + }; +}) +.directive('networkHashrate', function($http) { + return { + restrict: 'E', + template: '', + scope: true, + link: function(scope, elem, attrs) { + $http.post("/stats", {"action": "hashrates"}) + .then(function(res) { + //console.log(res.data); + + scope.init(res.data, "#hashrates"); + }); + + /** + * Created by chenxiangyu on 2016/8/5. + */ + scope.init = function(dataset, chartid) { + async.waterfall([ + myFirstFunction, + mySecondFunction, + myLastFunction + ], function (err, result) { + // result now equals 'done' + //console.log("all done1"); + return result; + }); + + function myFirstFunction(callback) { + /* + request('http://drawpie.com/etc_hash_rate_api', function (error, response, body) { + if (!error && response.statusCode == 200) { + + var hashrate = JSON.parse(body); + //console.log(hashrate); + callback(null, hashrate, 'two'); + } + }); + */ + callback(null, dataset, 'two'); + //callback(null, 'one', 'two'); + } + + + function mySecondFunction(arg1, arg2, callback) { + // arg1 now equals 'one' and arg2 now equals 'two' + + //console.log(window.screen.availWidth); + var width1 = parseInt(d3.select(chartid).style("width")); + + var margin = {top: 0, right: 50, bottom: 50, left: 100}, + //var margin = {top: 30, right: 0, bottom: 0, left: 0}, + // For Responsive web design, get window.innerWidth + //width = window.innerWidth - margin.left - margin.right, + width = width1 - margin.left - margin.right, + //width = window.screen.availWidth - margin.left - margin.right, + height = 400 - margin.top - margin.bottom; + + // FIXME + if (width < 0) { + width = 1000; + } + + var x = d3.time.scale().range([0, width]); + var y = d3.scale.linear().range([height, 0]); + + // For Responsive web design + //When window.innerWidth < 800 , Reduce the ticks to 2 + + + var xAxis = d3.svg.axis() + .scale(x) + .orient("bottom") + //.tickFormat(d3.time.format("%x %H:%M")) + .tickFormat(d3.time.format("%x")) + .ticks(5); + + + + + var yAxis = d3.svg.axis() + .scale(y) + .orient("left") + .tickFormat(d3.format("s")) + .tickFormat(function(d){return d3.format("s")(d) +'H/s';}) + .ticks(5); + + + + var area = d3.svg.area() + .x(function(d) { return x(d.timestamp*1000); }) + .y0(height) + .y1(function(d) { return y(d.instantHashrate); }); + + var valueline = d3.svg.line() + .x(function(d) { return x(d.timestamp*1000); }) + .y(function(d) { return y(d.instantHashrate); }); + + var svg = d3.select(chartid) + //.append("svg") + .attr("width", width + margin.left + margin.right) + + .attr("height", height + margin.top + margin.bottom) + .append("g") + .attr("transform", + "translate(" + margin.left + "," + margin.top + ")"); + + + + + + // function for the x grid lines + function make_x_axis() { + return d3.svg.axis() + .scale(x) + .orient("bottom") + .ticks(8) + } + + // function for the y grid lines + function make_y_axis() { + return d3.svg.axis() + .scale(y) + .orient("left") + .ticks(8) + } + + + + var data = arg1.hashrates; + + // Scale the range of the data + x.domain(d3.extent(data, function(d) { return d.timestamp*1000; })); + y.domain([d3.min(data, function(d) { return d.instantHashrate; }), d3.max(data, function(d) { return d.instantHashrate; })]); + + // Add the filled area + svg.append("path") + .datum(data) + .attr("class", "area") + .attr("d", area); + + // Draw the x Grid lines + svg.append("g") + .attr("class", "grid") + .attr("transform", "translate(0," + height + ")") + .call(make_x_axis() + .tickSize(-height, 0, 0) + .tickFormat("") + ); + + // Draw the y Grid lines + svg.append("g") + .attr("class", "grid") + .call(make_y_axis() + .tickSize(-width, 0, 0) + .tickFormat("") + ); + + // Add the valueline path. + svg.append("path") + .attr("d", valueline(data)); + + // Add the X Axis + svg.append("g") + .attr("class", "x axis") + .attr("transform", "translate(0," + height + ")") + .call(xAxis); + + // Add the Y Axis + svg.append("g") + .attr("class", "y axis") + .call(yAxis); + + + + // Add Tooltip + var focus = svg.append("g") + .attr("class", "focus") + .style("display", "none"); + + focus.append("circle") + .attr("r", 4.5); + + focus.append("text") + .attr("x", 9) + .attr("dy", ".35em"); + + + svg.append("rect") + .attr("class", "overlay") + .attr("width", width) + .attr("height", height) + .on("mouseover", function() { focus.style("display", null); }) + .on("mouseout", function() { focus.style("display", "none"); }) + .on("mousemove", mousemove); + + + function mousemove() { + var x0 = x.invert(d3.mouse(this)[0]); + //console.log(moment(x0).unix()); + + var s1 = _.minBy(data, function(d) { + //console.log(d.unixtime); + return Math.abs(moment(x0).unix()-d.unixtime); + }); + + //console.log(moment(s1.unixtime*1000).format()); + //console.log(s1.instantHashrate); + + + + //focus.attr("transform", "translate(" + x(d.date) + "," + y(d.close) + ")"); + focus.attr("transform", "translate(" + x(moment(x0).unix()*1000) + "," + y(s1.instantHashrate) + ")"); + } + + + + + callback(null, 'three'); + } + function myLastFunction(arg1, callback) { + // arg1 now equals 'three' + callback(null, 'done'); + } + } + } + } +}) +.directive('etcTheBombChartOrig', function($http) { + return { + restrict: 'E', + template: '', + scope: true, + link: function(scope, elem, attrs) { + $http.post("/stats", {"action": "hashrates"}) + .then(function(res) { + //console.log(res.data); + + scope.init(res.data, '#bombchart'); + }); + + /** + * Created by chenxiangyu on 2016/8/5. + */ + scope.init = function(dataset, chartid) { + async.waterfall([ + myFirstFunction, + mySecondFunction, + myLastFunction + ], function (err, result) { + // result now equals 'done' + //console.log("all done1"); + + return result; + }); + + function myFirstFunction(callback) { + /* + request('http://drawpie.com/etc_hash_rate_api', function (error, response, body) { + if (!error && response.statusCode == 200) { + + var hashrate = JSON.parse(body); + //console.log(hashrate); + callback(null, hashrate, 'two'); + } + }); + */ + + callback(null, dataset, 'two'); + //callback(null, 'one', 'two'); + } + + function mySecondFunction(arg1, arg2, callback) { + // arg1 now equals 'one' and arg2 now equals 'two' + + //console.log(112); + //console.log(arg1); + var day = moment("2016-08-10"); + + var bomb_array =[]; + for(i=2000000;i<4500000;i = i +50000){ + console.log(i); + //Math.pow(2, (block_number/100000)-2); + console.log(Math.pow(2, (i/100000)-2)); + + //bomb_array.push({Date :day.unix(), Value : Math.pow(2, (i/100000000000)-2) + 10677580591563}); + bomb_array.push({Date :day.unix(), Value : Math.pow(2, (i/100000)-2)+8000000000000}); + + day.add(14*50000, 's'); + //console.log(day.format()) + } + + //console.log(bomb_array); + + + //console.log(window.screen.availWidth); + var width1 = parseInt(d3.select(chartid).style("width")); + + var margin = {top: 0, right: 50, bottom: 50, left: 100}, + //var margin = {top: 30, right: 0, bottom: 0, left: 0}, + // For Responsive web design, get window.innerWidth + //width = window.innerWidth - margin.left - margin.right, + width = width1 - margin.left - margin.right, + //width = window.screen.availWidth - margin.left - margin.right, + height = 400 - margin.top - margin.bottom; + + var x = d3.time.scale().range([0, width]); + var y = d3.scale.linear().range([height, 0]); + + // For Responsive web design + //When window.innerWidth < 800 , Reduce the ticks to 2 + + + var xAxis = d3.svg.axis() + .scale(x) + .orient("bottom") + //.tickFormat(d3.time.format("%x %H:%M")) + .tickFormat(d3.time.format("%x")) + .ticks(8); + + + var yAxis = d3.svg.axis() + .scale(y) + .orient("left") + .tickFormat(d3.format("s")) + .tickFormat(function(d){return d3.format("s")(d) +'H/s';}) + .ticks(5); + + + var area = d3.svg.area() + .x(function(d) { return x(d.timestamp*1000); }) + .y0(height) + .y1(function(d) { return y(d.difficulty); }); + + var valueline = d3.svg.line() + .x(function(d) { return x(d.timestamp*1000); }) + .y(function(d) { return y(d.difficulty); }); + + /* + var valueline_bomb = d3.svg.line() + .x(function(d) { return x(d.Date*1000); }) + .y(function(d) { return y(d.Value); }); + */ + + var svg = d3.select(chartid) + //.append("svg") + .attr("width", width + margin.left + margin.right) + + .attr("height", height + margin.top + margin.bottom) + .append("g") + .attr("transform", + "translate(" + margin.left + "," + margin.top + ")"); + + + + + + // function for the x grid lines + function make_x_axis() { + return d3.svg.axis() + .scale(x) + .orient("bottom") + .ticks(8) + } + + // function for the y grid lines + function make_y_axis() { + return d3.svg.axis() + .scale(y) + .orient("left") + .ticks(8) + } + + + + var data = arg1.hashrates; + + // Scale the range of the data + //x.domain(d3.extent(data, function(d) { return d.timestamp*1000; })); + x.domain([1470009600*1000,1504224000*1000]); + y.domain([d3.min(data, function(d) { return d.difficulty; }), d3.max(data, function(d) { return d.difficulty; })]); + + // Add the filled area + svg.append("path") + .datum(data) + .attr("class", "area") + .attr("d", area); + + // Draw the x Grid lines + svg.append("g") + .attr("class", "grid") + .attr("transform", "translate(0," + height + ")") + .call(make_x_axis() + .tickSize(-height, 0, 0) + .tickFormat("") + ); + + // Draw the y Grid lines + svg.append("g") + .attr("class", "grid") + .call(make_y_axis() + .tickSize(-width, 0, 0) + .tickFormat("") + ); + + // Add the valueline path. + svg.append("path") + .attr("d", valueline(data)); + + svg.selectAll("circle") + .data(bomb_array) + .enter() + .append("circle") + .attr("cx", function (d) { return x(new Date(d.Date*1000)) }) + .attr("cy", function (d) { return y(d.Value); }) + .attr("r", function (d) { return 3; }) + .style("fill", function(d) { + if(d.Value < 8250000000000){ + return "black"; + } + else{ + return "red"; + } + + + }); + + // Add the X Axis + svg.append("g") + .attr("class", "x axis") + .attr("transform", "translate(0," + height + ")") + .call(xAxis); + + // Add the Y Axis + svg.append("g") + .attr("class", "y axis") + .call(yAxis); + + + + // Add Tooltip + var focus = svg.append("g") + .attr("class", "focus") + .style("display", "none"); + + focus.append("circle") + .attr("r", 4.5); + + focus.append("text") + .attr("x", 9) + .attr("dy", ".35em"); + + + svg.append("rect") + .attr("class", "overlay") + .attr("width", width) + .attr("height", height) + .on("mouseover", function() { focus.style("display", null); }) + .on("mouseout", function() { focus.style("display", "none"); }) + .on("mousemove", mousemove); + + + function mousemove() { + var x0 = x.invert(d3.mouse(this)[0]); + //console.log(moment(x0).unix()); + + + var s1 = _.minBy(data, function(d) { + //console.log(d.unixtime); + return Math.abs(moment(x0).unix()-d.unixtime); + }); + + //console.log(moment(s1.unixtime*1000).format()); + //console.log(s1.instantHashrate); + + + + //focus.attr("transform", "translate(" + x(d.date) + "," + y(d.close) + ")"); + focus.attr("transform", "translate(" + x(moment(x0).unix()*1000) + "," + y(s1.difficulty) + ")"); + } + + + + + callback(null, 'three'); + } + + function myLastFunction(arg1, callback) { + // arg1 now equals 'three' + callback(null, 'done'); + } + + + } + } + } +}) +.directive('etcTheBombChart', function($http) { + return { + restrict: 'E', + template: '', + scope: true, + link: function(scope, elem, attrs) { + $http.post("/stats", {"action": "hashrates"}) + .then(function(res) { + //console.log(res.data); + + scope.init(res.data, '#bombchartwithecip1010'); + }); + + /** + * Created by chenxiangyu on 2016/8/5. + */ + scope.init = function(dataset, chartid) { + async.waterfall([ + myFirstFunction, + get_ave_block_time, + mySecondFunction, + myLastFunction + ], function (err, result) { + // result now equals 'done' + //console.log("all done1"); + + return result; + }); + + function myFirstFunction(callback) { + + /* + request('http://drawpie.com/etc_hash_rate_api', function (error, response, body) { + if (!error && response.statusCode == 200) { + + var hashrate = JSON.parse(body); + //console.log(hashrate); + callback(null, hashrate); + } + }); + */ + //callback(null, hashrate); + callback(null, dataset); + + + + //callback(null, 'one', 'two'); + } + + function get_ave_block_time(arg1, callback) { + + + /* + request('http://drawpie.com/etc_avg_block_time', function (error, response, body) { + if (!error && response.statusCode == 200) { + + var ave_block_time = JSON.parse(body); + //console.log(hashrate); + callback(null, arg1, ave_block_time); + } + }); + */ + //callback(null, arg1, ave_block_time); + callback(null, arg1, 'three'); + + + + //callback(null, 'one', 'two'); + } + + function mySecondFunction(arg1, arg2, callback) { + // arg1 now equals 'one' and arg2 now equals 'two' + + //console.log(112); + //console.log(arg2.base_diff); + //console.log(arg2.etc_avg_block_time[0].array); + ////var ave_block_time_array = arg2.etc_avg_block_time[0].array; + ////ave_block_time_array.reverse(); + ////var ave_block_time_array_sliced = _.slice(ave_block_time_array,0,15); + //console.log(ave_block_time_array_sliced); + + ////var ave_block_time_array_sliced_lodashed = _.meanBy(ave_block_time_array_sliced, function(d) { return d.avg_block_time; }); + var ave_block_time_array_sliced_lodashed = _.meanBy(arg1.hashrates, function(d) { return d.blockTime; }); // FIXME + //console.log("ave_block_time_array_sliced_lodashed"); + //console.log(ave_block_time_array_sliced_lodashed); + + var start_count_block = 2250000; // 1473790866 + var day = moment.unix(1473790866); + var day_with_ECIP_1010 = moment.unix(1473790866); + + // var day = moment("2016-08-10"); + //var day_with_ECIP_1010 = moment("2016-08-10"); + + var bomb_array =[]; + var bomb_array_with_ECIP_1010 =[]; + + //var base_diff = arg2.base_diff; + var base_diff = arg1.hashrates[0].difficulty; // FIXME + + + + for(i=start_count_block;i<4500000;i = i +50000){ + //console.log(i); + //Math.pow(2, (block_number/100000)-2); + //console.log(Math.pow(2, (i/100000)-2)); + + //bomb_array.push({Date :day.unix(), Value : Math.pow(2, (i/100000000000)-2) + 10677580591563}); + + switch (true) { + case (i<3000000): + + + //console.log(i); + //Math.pow(2, (block_number/100000)-2); + //console.log(Math.pow(2, (i/100000)-2)); + + //bomb_array.push({Date :day.unix(), Value : Math.pow(2, (i/100000000000)-2) + 10677580591563}); + bomb_array.push({ + Date :day.unix(), + Value : Math.pow(2, (i/100000)-2)+base_diff, + number : i + }); + + break; + + case (i>=3000000): + + if (i == 3000000){ + //console.log("Block 3000000 time "); + //console.log(day.format()); + } + //console.log(i); + //Math.pow(2, (block_number/100000)-2); + //console.log(Math.pow(2, 28)); + + //bomb_array.push({Date :day.unix(), Value : Math.pow(2, (i/100000000000)-2) + 10677580591563}); + bomb_array.push({ + Date :day.unix(), + Value : Math.pow(2, (i/100000)-2)+base_diff+100000000000, + number : i + }); + + break; + + } + + /* + bomb_array.push({ + Date :day.unix(), + Value : Math.pow(2, (i/100000)-2)+base_diff, + number : i + }); + */ + + day.add(ave_block_time_array_sliced_lodashed*50000, 's'); + //console.log(day.format()) + } + + for(i=start_count_block;i<6500000;i = i +50000){ + + + //console.log(1123); + + switch (true) { + case (i<3000000): + day = "Sunday"; + + //console.log(i); + //Math.pow(2, (block_number/100000)-2); + //console.log(Math.pow(2, (i/100000)-2)); + + //bomb_array.push({Date :day.unix(), Value : Math.pow(2, (i/100000000000)-2) + 10677580591563}); + bomb_array_with_ECIP_1010.push({ + Date :day_with_ECIP_1010.unix(), + Value : Math.pow(2, (i/100000)-2)+base_diff, + number : i + }); + + break; + + case (i>=3000000 && i<5000000 ): + day = "Monday"; + + //console.log(i); + //Math.pow(2, (block_number/100000)-2); + //console.log(Math.pow(2, 28)); + + //bomb_array.push({Date :day.unix(), Value : Math.pow(2, (i/100000000000)-2) + 10677580591563}); + bomb_array_with_ECIP_1010.push({ + Date :day_with_ECIP_1010.unix(), + Value : Math.pow(2, 28)+base_diff-100000000000, + number : i + }); + + break; + + case (i>=5000000): + day = "Monday"; + + //console.log(i); + //Math.pow(2, (block_number/100000)-2); + //console.log(Math.pow(2, (i/100000)-2-20)); + + //bomb_array.push({Date :day.unix(), Value : Math.pow(2, (i/100000000000)-2) + 10677580591563}); + bomb_array_with_ECIP_1010.push({ + Date :day_with_ECIP_1010.unix(), + Value : Math.pow(2, (i/100000)-2-20)+base_diff-100000000000, + number : i + }); + + break; + + } + + + + day_with_ECIP_1010.add(ave_block_time_array_sliced_lodashed*50000, 's'); + //console.log(day.format()) + } + + + //console.log(bomb_array); + + + //console.log(window.screen.availWidth); + var width1 = parseInt(d3.select(chartid).style("width")); + + var margin = {top: 0, right: 50, bottom: 50, left: 100}, + //var margin = {top: 30, right: 0, bottom: 0, left: 0}, + // For Responsive web design, get window.innerWidth + //width = window.innerWidth - margin.left - margin.right, + width = width1 - margin.left - margin.right, + //width = window.screen.availWidth - margin.left - margin.right, + height = 400 - margin.top - margin.bottom; + + // FIXME + if (width < 0) { + width = 1000; + } + + var x = d3.time.scale().range([0, width]); + var y = d3.scale.linear().range([height, 0]); + + // For Responsive web design + //When window.innerWidth < 800 , Reduce the ticks to 2 + + + var xAxis = d3.svg.axis() + .scale(x) + .orient("bottom") + //.tickFormat(d3.time.format("%x %H:%M")) + .tickFormat(d3.time.format("%x")) + .ticks(8); + + + var yAxis = d3.svg.axis() + .scale(y) + .orient("left") + .tickFormat(d3.format("s")) + .tickFormat(function(d){return d3.format("s")(d) +'H/s';}) + .ticks(5); + + + var area = d3.svg.area() + .x(function(d) { return x(d.timestamp*1000); }) + .y0(height) + .y1(function(d) { return y(d.difficulty); }); + + var valueline = d3.svg.line() + .x(function(d) { return x(d.timestamp*1000); }) + .y(function(d) { return y(d.difficulty); }); + + + var valueline_bomb = d3.svg.line() + .x(function(d) { return x(d.Date*1000); }) + .y(function(d) { return y(d.Value); }); + + var valueline_bomb_with_ECIP_1010 = d3.svg.line() + .x(function(d) { return x(d.Date*1000); }) + .y(function(d) { return y(d.Value); }); + + + + + var svg = d3.select(chartid) + //.append("svg") + .attr("width", width + margin.left + margin.right) + + .attr("height", height + margin.top + margin.bottom) + .append("g") + .attr("transform", + "translate(" + margin.left + "," + margin.top + ")"); + + + + + + // function for the x grid lines + function make_x_axis() { + return d3.svg.axis() + .scale(x) + .orient("bottom") + .ticks(8) + } + + // function for the y grid lines + function make_y_axis() { + return d3.svg.axis() + .scale(y) + .orient("left") + .ticks(8) + } + + + + var data = arg1.hashrates; + + // Scale the range of the data + //x.domain(d3.extent(data, function(d) { return d.timestamp*1000; })); + //x.domain([1470009600*1000,1504224000*1000]); + x.domain([1470009600*1000,1535760000*1000]); + y.domain([d3.min(data, function(d) { return d.difficulty; }), d3.max(data, function(d) { return d.difficulty; })]); + + // Add the filled area + svg.append("path") + .datum(data) + .attr("class", "area") + .attr("d", area); + + // Draw the x Grid lines + svg.append("g") + .attr("class", "grid") + .attr("transform", "translate(0," + height + ")") + .call(make_x_axis() + .tickSize(-height, 0, 0) + .tickFormat("") + ); + + // Draw the y Grid lines + svg.append("g") + .attr("class", "grid") + .call(make_y_axis() + .tickSize(-width, 0, 0) + .tickFormat("") + ); + + // Add the valueline path. + svg.append("path") + .attr("d", valueline(data)); + + svg.append("path") + .attr("d", valueline_bomb(bomb_array)); + + svg.append("path") + .attr("d", valueline_bomb_with_ECIP_1010(bomb_array_with_ECIP_1010)); + + + + + svg.selectAll("circle") + .data(bomb_array) + .enter() + .append("circle") + .attr("cx", function (d) { return x(new Date(d.Date*1000)) }) + .attr("cy", function (d) { + + if(d.number < 3000000){ + return y(d.Value); + } + else{ + return y(d.Value); + } + //return y(d.Value)-10; + + }) + .attr("r", function (d) { return 3; }) + .style("fill", function(d) { + /* + if(d.Value < 8250000000000){ + return "black"; + } + else{ + return "red"; + } + */ + return "red"; + + }); + + svg.selectAll("circle_with_ECIP_1010") + .data(bomb_array_with_ECIP_1010) + .enter() + .append("circle") + .attr("cx", function (d) { return x(new Date(d.Date*1000)) }) + .attr("cy", function (d) { + + if(d.number < 3000000){ + return y(d.Value); + } + else{ + return y(d.Value); + } + //return y(d.Value)-10; + + }) + .attr("r", function (d) { return 3; }) + .style("fill", function(d) { + + if(d.number < 3000000){ + return "red"; + } + else{ + return "green"; + } + + }); + + // Add the X Axis + svg.append("g") + .attr("class", "x axis") + .attr("transform", "translate(0," + height + ")") + .call(xAxis); + + // Add the Y Axis + svg.append("g") + .attr("class", "y axis") + .call(yAxis); + + //append label + svg.append("rect") + .attr("x", 50) + .attr("y", 10) + .style("fill","lightsteelblue") + .attr("stroke-width", 2) + .attr("stroke", "steelblue") + .attr("width", 10) + .attr("height", 10); + + //console.log(_.last(arg1.etc_hashrate).difficulty); + //console.log(d3.format(".3s")(_.last(arg1.etc_hashrate).difficulty)); + //d3.format("s")(d) +'H/s' + //console.log(_.last(arg1.etc_hashrate).unixtime); + + + svg.append("text") + .attr("x", 70) + .attr("y", 10) + .text("Current difficulty : " + d3.format(".3s")(_.last(arg1.hashrates).difficulty)+" , " +new Date(_.last(arg1.hashrates).unixtime*1000)) + //.attr("text-anchor", "middle") + .attr("dy", "10px") + .attr("font-family", "sans-serif") + .attr("font-size", "20px"); + + svg.append("circle") + .attr("cx", 50+4) + .attr("cy", 10+30) + .style("fill","red") + .attr("r", 5); + + svg.append("text") + .attr("x", 50+20) + .attr("y", 35) + .text("Prediction of future difficulty, without ECIP-1010") + //.attr("text-anchor", "middle") + .attr("dy", "10px") + .attr("font-family", "sans-serif") + .attr("font-size", "20px"); + + svg.append("circle") + .attr("cx", 50+4) + .attr("cy", 10+30+25) + .style("fill","green") + .attr("r", 5); + + svg.append("text") + .attr("x", 50+20) + .attr("y", 35+25) + .text("Prediction of future difficulty, with ECIP-1010") + //.attr("text-anchor", "middle") + .attr("dy", "10px") + .attr("font-family", "sans-serif") + .attr("font-size", "20px"); + + //add mark + + //console.log(bomb_array_with_ECIP_1010); + + + var block_3000000_time = _.find(bomb_array_with_ECIP_1010, function(d) { return d.number == 3000000; }); + + //console.log(block_3000000_time); + //console.log(block_3000000_time.Date); + + svg.append("line") + .attr("x1", x(new Date(_.last(arg1.hashrates).unixtime*1000))+10) + .attr("y1", 0+270) + .attr("x2", x(new Date(_.last(arg1.hashrates).unixtime*1000))+10) + .attr("y2", 10+270) + .attr("stroke-width", 1) + .attr("stroke", "black"); + + svg.append("line") + .attr("x1", x(new Date(block_3000000_time.Date*1000))) + .attr("y1", 0+270) + .attr("x2", x(new Date(block_3000000_time.Date*1000))) + .attr("y2", 10+270) + .attr("stroke-width", 1) + //.style("stroke-dasharray", ("3, 3")) + .attr("stroke", "black"); + + svg.append("line") + .attr("x1", x(new Date(block_3000000_time.Date*1000))) + .attr("y1", 0+270-80) + .attr("x2", x(new Date(block_3000000_time.Date*1000))) + .attr("y2", 10+270) + .attr("stroke-width", 1) + .style("stroke-dasharray", ("3, 3")) + .attr("stroke", "black"); + + svg.append("text") + .attr("x", x(new Date(block_3000000_time.Date*1000))) + //.attr("x", x(new Date(_.last(arg1.etc_hashrate).unixtime*1000))+10) + .attr("y", 0+260-80-10-15) + .text("ECIP-1010 Deploy, Block 3000000") + .attr("text-anchor", "middle") + .attr("dy", "10px") + .attr("font-family", "sans-serif") + .attr("font-size", "20px"); + + svg.append("text") + .attr("x", x(new Date(block_3000000_time.Date*1000))) + //.attr("x", x(new Date(_.last(arg1.etc_hashrate).unixtime*1000))+10) + .attr("y", 0+260-80-10) + .text(new Date(block_3000000_time.Date*1000)+" (expected)") + .attr("text-anchor", "middle") + .attr("dy", "10px") + .attr("font-family", "sans-serif") + .attr("font-size", "20px"); + + + + svg.append("line") + .attr("x1", x(new Date(_.last(arg1.hashrates).unixtime*1000))+10) + .attr("y1", 5+270) + .attr("x2", x(new Date(block_3000000_time.Date*1000))) + .attr("y2", 5+270) + .attr("stroke-width", 1) + .attr("stroke", "black"); + + var duration = block_3000000_time.Date - _.last(arg1.hashrates).unixtime; + //console.log(duration); + //console.log(moment.duration(duration, 'seconds').humanize()); + + + + svg.append("text") + .attr("x", x(new Date(( duration/2 + _.last(arg1.hashrates).unixtime ) *1000))+0) + //.attr("x", x(new Date(_.last(arg1.etc_hashrate).unixtime*1000))+10) + .attr("y", 0+260) + .text(moment.duration(duration, 'seconds').humanize()) + .attr("text-anchor", "middle") + .attr("dy", "10px") + .attr("font-family", "sans-serif") + .attr("font-size", "20px"); + + + var block_4000000_time = _.find(bomb_array_with_ECIP_1010, function(d) { return d.number == 4000000; }); + + var duration_30_40 = block_4000000_time.Date - block_3000000_time.Date; + //console.log(duration_30_40); + //console.log(moment.duration(duration_30_40, 'seconds').humanize()); + + svg.append("line") + .attr("x1", x(new Date(block_3000000_time.Date*1000))) + .attr("y1", 5+270) + .attr("x2", x(new Date(block_4000000_time.Date*1000))) + .attr("y2", 5+270) + .attr("stroke-width", 1) + .attr("stroke", "black"); + + //((block_4000000_time.Date-block_3000000_time.Date)/2+block_3000000_time.Date) + + svg.append("text") + .attr("x", x(new Date(((block_4000000_time.Date-block_3000000_time.Date)/2+block_3000000_time.Date)*1000))) + .attr("y", 0+260) + .text(moment.duration(duration_30_40, 'seconds').humanize()) + .attr("text-anchor", "middle") + .attr("dy", "10px") + .attr("font-family", "sans-serif") + .attr("font-size", "20px"); + + svg.append("line") + .attr("x1", x(new Date(block_4000000_time.Date*1000))) + .attr("y1", 0+270) + .attr("x2", x(new Date(block_4000000_time.Date*1000))) + .attr("y2", 10+270) + .attr("stroke-width", 1) + .attr("stroke", "black"); + + + var block_6000000_time = _.find(bomb_array_with_ECIP_1010, function(d) { return d.number == 6000000; }); + + var duration_40_60 = block_6000000_time.Date - block_4000000_time.Date; + //console.log(duration_40_60); + //console.log(moment.duration(duration_40_60, 'seconds').humanize()); + + svg.append("line") + .attr("x1", x(new Date(block_4000000_time.Date*1000))) + .attr("y1", 5+270) + .attr("x2", x(new Date(block_6000000_time.Date*1000))) + .attr("y2", 5+270) + .attr("stroke-width", 1) + .attr("stroke", "black"); + + svg.append("line") + .attr("x1", x(new Date(block_6000000_time.Date*1000))) + .attr("y1", 0+270) + .attr("x2", x(new Date(block_6000000_time.Date*1000))) + .attr("y2", 10+270) + .attr("stroke-width", 1) + .attr("stroke", "black"); + + // ((block_6000000_time.Date-block_4000000_time.Date)/2+block_4000000_time.Date); + + svg.append("text") + //.attr("x", x(new Date((block_4000000_time.Date*1000)))) + .attr("x", x(new Date(( ((block_6000000_time.Date-block_4000000_time.Date)/2+block_4000000_time.Date)*1000)))) + .attr("y", 0+260) + .text(moment.duration(duration_40_60, 'seconds').humanize()) + .attr("text-anchor", "middle") + .attr("dy", "10px") + .attr("font-family", "sans-serif") + .attr("font-size", "20px"); + + + + + // Add Tooltip + var focus = svg.append("g") + .attr("class", "focus") + .style("display", "none"); + + focus.append("circle") + .attr("r", 4.5); + + focus.append("text") + .attr("x", 9) + .attr("dy", ".35em"); + + + svg.append("rect") + .attr("class", "overlay") + .attr("width", width) + .attr("height", height) + .on("mouseover", function() { focus.style("display", null); }) + .on("mouseout", function() { focus.style("display", "none"); }) + .on("mousemove", mousemove); + + + function mousemove() { + var x0 = x.invert(d3.mouse(this)[0]); + //console.log(moment(x0).unix()); + + + var s1 = _.minBy(data, function(d) { + //console.log(d.unixtime); + return Math.abs(moment(x0).unix()-d.unixtime); + }); + + //console.log(moment(s1.unixtime*1000).format()); + //console.log(s1.instantHashrate); + + + + //focus.attr("transform", "translate(" + x(d.date) + "," + y(d.close) + ")"); + focus.attr("transform", "translate(" + x(moment(x0).unix()*1000) + "," + y(s1.difficulty) + ")"); + } + + + + + callback(null, 'four'); + } + function myLastFunction(arg1, callback) { + // arg1 now equals 'three' + callback(null, 'done'); + } + + + } + } + } +}); diff --git a/public/js/main.js b/public/js/main.js index 1d381ec8f..7ac09a679 100755 --- a/public/js/main.js +++ b/public/js/main.js @@ -204,25 +204,10 @@ BlocksApp.config(['$stateProvider', '$urlRouterProvider', function($stateProvide .state('stats', { url: "/stats/{chart}", templateUrl: "views/stats/index.html", - data: {pageTitle: 'Transaction'}, + data: {pageTitle: 'Statistics'}, controller: "StatsController", resolve: { deps: ['$ocLazyLoad', '$stateParams', function($ocLazyLoad, $stateParams) { - var bundle = '/js/stats/bundle_'; - - switch ($stateParams.chart) { - case "etc_hashrate": - bundle = bundle + "hashrate.js"; - break; - case "miner_hashrate": - bundle = bundle + "hashrate_distribution.js"; - break; - - case "The_bomb_chart": - bundle = bundle + "The_bomb_chart_with_ECIP_1010.js"; - break; - - } return $ocLazyLoad.load({ insertBefore: '#ng_load_plugins_before', // load the above css files before '#ng_load_plugins_before' files: [ @@ -230,7 +215,7 @@ BlocksApp.config(['$stateProvider', '$urlRouterProvider', function($stateProvide '/css/stats.css', "https://cdnjs.cloudflare.com/ajax/libs/d3/3.5.10/d3.js", "/plugins/async.min.js", - bundle + "/plugins/moment/moment.min.js" ] }); }] diff --git a/public/js/stats/The_bomb_chart.js b/public/js/stats/The_bomb_chart.js deleted file mode 100644 index fbafdb519..000000000 --- a/public/js/stats/The_bomb_chart.js +++ /dev/null @@ -1,291 +0,0 @@ -/** - * Created by chenxiangyu on 2016/8/5. - */ -var request = require('request'); -var moment = require('moment'); -var _ = require('lodash'); - -window.call_hashrate_chart = function(){ - - async.waterfall([ - myFirstFunction, - mySecondFunction, - myLastFunction - ], function (err, result) { - // result now equals 'done' - //console.log("all done1"); - - return result; - }); - - function myFirstFunction(callback) { - - - request('http://drawpie.com/etc_hash_rate_api', function (error, response, body) { - if (!error && response.statusCode == 200) { - - var hashrate = JSON.parse(body); - //console.log(hashrate); - callback(null, hashrate, 'two'); - } - }); - - - - //callback(null, 'one', 'two'); - } - function mySecondFunction(arg1, arg2, callback) { - // arg1 now equals 'one' and arg2 now equals 'two' - - //console.log(112); - //console.log(arg1); - var day = moment("2016-08-10"); - - var bomb_array =[]; - for(i=2000000;i<4500000;i = i +50000){ - console.log(i); - //Math.pow(2, (block_number/100000)-2); - console.log(Math.pow(2, (i/100000)-2)); - - //bomb_array.push({Date :day.unix(), Value : Math.pow(2, (i/100000000000)-2) + 10677580591563}); - bomb_array.push({Date :day.unix(), Value : Math.pow(2, (i/100000)-2)+8000000000000}); - - day.add(14*50000, 's'); - //console.log(day.format()) - } - - //console.log(bomb_array); - - - //console.log(window.screen.availWidth); - var width1 = parseInt(d3.select("#hashrate").style("width")); - - var margin = {top: 0, right: 50, bottom: 50, left: 100}, - //var margin = {top: 30, right: 0, bottom: 0, left: 0}, - // For Responsive web design, get window.innerWidth - //width = window.innerWidth - margin.left - margin.right, - width = width1 - margin.left - margin.right, - //width = window.screen.availWidth - margin.left - margin.right, - height = 400 - margin.top - margin.bottom; - - var x = d3.time.scale().range([0, width]); - var y = d3.scale.linear().range([height, 0]); - - // For Responsive web design - //When window.innerWidth < 800 , Reduce the ticks to 2 - - - var xAxis = d3.svg.axis() - .scale(x) - .orient("bottom") - //.tickFormat(d3.time.format("%x %H:%M")) - .tickFormat(d3.time.format("%x")) - .ticks(8); - - - var yAxis = d3.svg.axis() - .scale(y) - .orient("left") - .tickFormat(d3.format("s")) - .tickFormat(function(d){return d3.format("s")(d) +'H/s';}) - .ticks(5); - - - var area = d3.svg.area() - .x(function(d) { return x(d.timestamp*1000); }) - .y0(height) - .y1(function(d) { return y(d.difficulty); }); - - var valueline = d3.svg.line() - .x(function(d) { return x(d.timestamp*1000); }) - .y(function(d) { return y(d.difficulty); }); - - /* - var valueline_bomb = d3.svg.line() - .x(function(d) { return x(d.Date*1000); }) - .y(function(d) { return y(d.Value); }); - */ - - var svg = d3.select("#hashrate") - //.append("svg") - .attr("width", width + margin.left + margin.right) - - .attr("height", height + margin.top + margin.bottom) - .append("g") - .attr("transform", - "translate(" + margin.left + "," + margin.top + ")"); - - - - - -// function for the x grid lines - function make_x_axis() { - return d3.svg.axis() - .scale(x) - .orient("bottom") - .ticks(8) - } - -// function for the y grid lines - function make_y_axis() { - return d3.svg.axis() - .scale(y) - .orient("left") - .ticks(8) - } - - - - var data = arg1.etc_hashrate; - - // Scale the range of the data - //x.domain(d3.extent(data, function(d) { return d.timestamp*1000; })); - x.domain([1470009600*1000,1504224000*1000]); - y.domain([d3.min(data, function(d) { return d.difficulty; }), d3.max(data, function(d) { return d.difficulty; })]); - - // Add the filled area - svg.append("path") - .datum(data) - .attr("class", "area") - .attr("d", area); - - // Draw the x Grid lines - svg.append("g") - .attr("class", "grid") - .attr("transform", "translate(0," + height + ")") - .call(make_x_axis() - .tickSize(-height, 0, 0) - .tickFormat("") - ); - - // Draw the y Grid lines - svg.append("g") - .attr("class", "grid") - .call(make_y_axis() - .tickSize(-width, 0, 0) - .tickFormat("") - ); - - // Add the valueline path. - svg.append("path") - .attr("d", valueline(data)); - - svg.selectAll("circle") - .data(bomb_array) - .enter() - .append("circle") - .attr("cx", function (d) { return x(new Date(d.Date*1000)) }) - .attr("cy", function (d) { return y(d.Value); }) - .attr("r", function (d) { return 3; }) - .style("fill", function(d) { - if(d.Value < 8250000000000){ - return "black"; - } - else{ - return "red"; - } - - - }); - - // Add the X Axis - svg.append("g") - .attr("class", "x axis") - .attr("transform", "translate(0," + height + ")") - .call(xAxis); - - // Add the Y Axis - svg.append("g") - .attr("class", "y axis") - .call(yAxis); - - - - // Add Tooltip - var focus = svg.append("g") - .attr("class", "focus") - .style("display", "none"); - - focus.append("circle") - .attr("r", 4.5); - - focus.append("text") - .attr("x", 9) - .attr("dy", ".35em"); - - - svg.append("rect") - .attr("class", "overlay") - .attr("width", width) - .attr("height", height) - .on("mouseover", function() { focus.style("display", null); }) - .on("mouseout", function() { focus.style("display", "none"); }) - .on("mousemove", mousemove); - - - function mousemove() { - var x0 = x.invert(d3.mouse(this)[0]); - //console.log(moment(x0).unix()); - - - var s1 = _.minBy(data, function(d) { - //console.log(d.unixtime); - return Math.abs(moment(x0).unix()-d.unixtime); - }); - - //console.log(moment(s1.unixtime*1000).format()); - //console.log(s1.instantHashrate); - - - - //focus.attr("transform", "translate(" + x(d.date) + "," + y(d.close) + ")"); - focus.attr("transform", "translate(" + x(moment(x0).unix()*1000) + "," + y(s1.difficulty) + ")"); - } - - - - - callback(null, 'three'); - } - function myLastFunction(arg1, callback) { - // arg1 now equals 'three' - callback(null, 'done'); - } - - - -}; - -//call_hashrate_chart(); - -var data = {}; -data.title = "title"; -data.message = "message"; -data.action = "miners"; - -$.ajax({ - type: 'POST', - data: JSON.stringify(data), - contentType: 'application/json', - url: 'http://127.0.0.1:3000/stats', - success: function(data) { - //console.log('success'); - //console.log(JSON.stringify(data)); - } -}); - - -/* - console.log("req.body"); - console.log(req.body); - - if (req.body.action=="miners"){ - console.log("OJ"); - } - - var obj = {}; - console.log('body: ' + JSON.stringify(req.body)); - res.send(req.body); - - */ diff --git a/public/js/stats/The_bomb_chart_with_ECIP_1010.js b/public/js/stats/The_bomb_chart_with_ECIP_1010.js deleted file mode 100644 index a128978c4..000000000 --- a/public/js/stats/The_bomb_chart_with_ECIP_1010.js +++ /dev/null @@ -1,701 +0,0 @@ -/** - * Created by chenxiangyu on 2016/8/5. - */ -var request = require('request'); -var moment = require('moment'); -var _ = require('lodash'); - -window.call_hashrate_chart = function(){ - - async.waterfall([ - myFirstFunction, - get_ave_block_time, - mySecondFunction, - myLastFunction - ], function (err, result) { - // result now equals 'done' - //console.log("all done1"); - - return result; - }); - - function myFirstFunction(callback) { - - - request('http://drawpie.com/etc_hash_rate_api', function (error, response, body) { - if (!error && response.statusCode == 200) { - - var hashrate = JSON.parse(body); - //console.log(hashrate); - callback(null, hashrate); - } - }); - - - - //callback(null, 'one', 'two'); - } - function get_ave_block_time(arg1, callback) { - - - request('http://drawpie.com/etc_avg_block_time', function (error, response, body) { - if (!error && response.statusCode == 200) { - - var ave_block_time = JSON.parse(body); - //console.log(hashrate); - callback(null, arg1, ave_block_time); - } - }); - - - - //callback(null, 'one', 'two'); - } - - function mySecondFunction(arg1, arg2, callback) { - // arg1 now equals 'one' and arg2 now equals 'two' - - //console.log(112); - //console.log(arg2.base_diff); - //console.log(arg2.etc_avg_block_time[0].array); - var ave_block_time_array = arg2.etc_avg_block_time[0].array; - ave_block_time_array.reverse(); - var ave_block_time_array_sliced = _.slice(ave_block_time_array,0,15); - //console.log(ave_block_time_array_sliced); - - var ave_block_time_array_sliced_lodashed = _.meanBy(ave_block_time_array_sliced, function(d) { return d.avg_block_time; }); - //console.log("ave_block_time_array_sliced_lodashed"); - //console.log(ave_block_time_array_sliced_lodashed); - - var start_count_block = 2250000; // 1473790866 - var day = moment.unix(1473790866); - var day_with_ECIP_1010 = moment.unix(1473790866); - - // var day = moment("2016-08-10"); - //var day_with_ECIP_1010 = moment("2016-08-10"); - - var bomb_array =[]; - var bomb_array_with_ECIP_1010 =[]; - - var base_diff = arg2.base_diff; - - - - for(i=start_count_block;i<4500000;i = i +50000){ - //console.log(i); - //Math.pow(2, (block_number/100000)-2); - //console.log(Math.pow(2, (i/100000)-2)); - - //bomb_array.push({Date :day.unix(), Value : Math.pow(2, (i/100000000000)-2) + 10677580591563}); - - switch (true) { - case (i<3000000): - - - //console.log(i); - //Math.pow(2, (block_number/100000)-2); - //console.log(Math.pow(2, (i/100000)-2)); - - //bomb_array.push({Date :day.unix(), Value : Math.pow(2, (i/100000000000)-2) + 10677580591563}); - bomb_array.push({ - Date :day.unix(), - Value : Math.pow(2, (i/100000)-2)+base_diff, - number : i - }); - - break; - - case (i>=3000000): - - if (i == 3000000){ - //console.log("Block 3000000 time "); - //console.log(day.format()); - } - //console.log(i); - //Math.pow(2, (block_number/100000)-2); - //console.log(Math.pow(2, 28)); - - //bomb_array.push({Date :day.unix(), Value : Math.pow(2, (i/100000000000)-2) + 10677580591563}); - bomb_array.push({ - Date :day.unix(), - Value : Math.pow(2, (i/100000)-2)+base_diff+100000000000, - number : i - }); - - break; - - } - - /* - bomb_array.push({ - Date :day.unix(), - Value : Math.pow(2, (i/100000)-2)+base_diff, - number : i - }); - */ - - day.add(ave_block_time_array_sliced_lodashed*50000, 's'); - //console.log(day.format()) - } - - for(i=start_count_block;i<6500000;i = i +50000){ - - - //console.log(1123); - - switch (true) { - case (i<3000000): - day = "Sunday"; - - //console.log(i); - //Math.pow(2, (block_number/100000)-2); - //console.log(Math.pow(2, (i/100000)-2)); - - //bomb_array.push({Date :day.unix(), Value : Math.pow(2, (i/100000000000)-2) + 10677580591563}); - bomb_array_with_ECIP_1010.push({ - Date :day_with_ECIP_1010.unix(), - Value : Math.pow(2, (i/100000)-2)+base_diff, - number : i - }); - - break; - - case (i>=3000000 && i<5000000 ): - day = "Monday"; - - //console.log(i); - //Math.pow(2, (block_number/100000)-2); - //console.log(Math.pow(2, 28)); - - //bomb_array.push({Date :day.unix(), Value : Math.pow(2, (i/100000000000)-2) + 10677580591563}); - bomb_array_with_ECIP_1010.push({ - Date :day_with_ECIP_1010.unix(), - Value : Math.pow(2, 28)+base_diff-100000000000, - number : i - }); - - break; - - case (i>=5000000): - day = "Monday"; - - //console.log(i); - //Math.pow(2, (block_number/100000)-2); - //console.log(Math.pow(2, (i/100000)-2-20)); - - //bomb_array.push({Date :day.unix(), Value : Math.pow(2, (i/100000000000)-2) + 10677580591563}); - bomb_array_with_ECIP_1010.push({ - Date :day_with_ECIP_1010.unix(), - Value : Math.pow(2, (i/100000)-2-20)+base_diff-100000000000, - number : i - }); - - break; - - } - - - - day_with_ECIP_1010.add(ave_block_time_array_sliced_lodashed*50000, 's'); - //console.log(day.format()) - } - - - //console.log(bomb_array); - - - //console.log(window.screen.availWidth); - var width1 = parseInt(d3.select("#hashrate").style("width")); - - var margin = {top: 0, right: 50, bottom: 50, left: 100}, - //var margin = {top: 30, right: 0, bottom: 0, left: 0}, - // For Responsive web design, get window.innerWidth - //width = window.innerWidth - margin.left - margin.right, - width = width1 - margin.left - margin.right, - //width = window.screen.availWidth - margin.left - margin.right, - height = 400 - margin.top - margin.bottom; - - var x = d3.time.scale().range([0, width]); - var y = d3.scale.linear().range([height, 0]); - - // For Responsive web design - //When window.innerWidth < 800 , Reduce the ticks to 2 - - - var xAxis = d3.svg.axis() - .scale(x) - .orient("bottom") - //.tickFormat(d3.time.format("%x %H:%M")) - .tickFormat(d3.time.format("%x")) - .ticks(8); - - - var yAxis = d3.svg.axis() - .scale(y) - .orient("left") - .tickFormat(d3.format("s")) - .tickFormat(function(d){return d3.format("s")(d) +'H/s';}) - .ticks(5); - - - var area = d3.svg.area() - .x(function(d) { return x(d.timestamp*1000); }) - .y0(height) - .y1(function(d) { return y(d.difficulty); }); - - var valueline = d3.svg.line() - .x(function(d) { return x(d.timestamp*1000); }) - .y(function(d) { return y(d.difficulty); }); - - - var valueline_bomb = d3.svg.line() - .x(function(d) { return x(d.Date*1000); }) - .y(function(d) { return y(d.Value); }); - - var valueline_bomb_with_ECIP_1010 = d3.svg.line() - .x(function(d) { return x(d.Date*1000); }) - .y(function(d) { return y(d.Value); }); - - - - - var svg = d3.select("#hashrate") - //.append("svg") - .attr("width", width + margin.left + margin.right) - - .attr("height", height + margin.top + margin.bottom) - .append("g") - .attr("transform", - "translate(" + margin.left + "," + margin.top + ")"); - - - - - -// function for the x grid lines - function make_x_axis() { - return d3.svg.axis() - .scale(x) - .orient("bottom") - .ticks(8) - } - -// function for the y grid lines - function make_y_axis() { - return d3.svg.axis() - .scale(y) - .orient("left") - .ticks(8) - } - - - - var data = arg1.etc_hashrate; - - // Scale the range of the data - //x.domain(d3.extent(data, function(d) { return d.timestamp*1000; })); - //x.domain([1470009600*1000,1504224000*1000]); - x.domain([1470009600*1000,1535760000*1000]); - y.domain([d3.min(data, function(d) { return d.difficulty; }), d3.max(data, function(d) { return d.difficulty; })]); - - // Add the filled area - svg.append("path") - .datum(data) - .attr("class", "area") - .attr("d", area); - - // Draw the x Grid lines - svg.append("g") - .attr("class", "grid") - .attr("transform", "translate(0," + height + ")") - .call(make_x_axis() - .tickSize(-height, 0, 0) - .tickFormat("") - ); - - // Draw the y Grid lines - svg.append("g") - .attr("class", "grid") - .call(make_y_axis() - .tickSize(-width, 0, 0) - .tickFormat("") - ); - - // Add the valueline path. - svg.append("path") - .attr("d", valueline(data)); - - svg.append("path") - .attr("d", valueline_bomb(bomb_array)); - - svg.append("path") - .attr("d", valueline_bomb_with_ECIP_1010(bomb_array_with_ECIP_1010)); - - - - - svg.selectAll("circle") - .data(bomb_array) - .enter() - .append("circle") - .attr("cx", function (d) { return x(new Date(d.Date*1000)) }) - .attr("cy", function (d) { - - if(d.number < 3000000){ - return y(d.Value); - } - else{ - return y(d.Value); - } - //return y(d.Value)-10; - - }) - .attr("r", function (d) { return 3; }) - .style("fill", function(d) { - /* - if(d.Value < 8250000000000){ - return "black"; - } - else{ - return "red"; - } - */ - return "red"; - - }); - - svg.selectAll("circle_with_ECIP_1010") - .data(bomb_array_with_ECIP_1010) - .enter() - .append("circle") - .attr("cx", function (d) { return x(new Date(d.Date*1000)) }) - .attr("cy", function (d) { - - if(d.number < 3000000){ - return y(d.Value); - } - else{ - return y(d.Value); - } - //return y(d.Value)-10; - - }) - .attr("r", function (d) { return 3; }) - .style("fill", function(d) { - - if(d.number < 3000000){ - return "red"; - } - else{ - return "green"; - } - - }); - - // Add the X Axis - svg.append("g") - .attr("class", "x axis") - .attr("transform", "translate(0," + height + ")") - .call(xAxis); - - // Add the Y Axis - svg.append("g") - .attr("class", "y axis") - .call(yAxis); - - //append label - svg.append("rect") - .attr("x", 50) - .attr("y", 10) - .style("fill","lightsteelblue") - .attr("stroke-width", 2) - .attr("stroke", "steelblue") - .attr("width", 10) - .attr("height", 10); - - //console.log(_.last(arg1.etc_hashrate).difficulty); - //console.log(d3.format(".3s")(_.last(arg1.etc_hashrate).difficulty)); - //d3.format("s")(d) +'H/s' - //console.log(_.last(arg1.etc_hashrate).unixtime); - - - svg.append("text") - .attr("x", 70) - .attr("y", 10) - .text("Current difficulty : " + d3.format(".3s")(_.last(arg1.etc_hashrate).difficulty)+" , " +new Date(_.last(arg1.etc_hashrate).unixtime*1000)) - //.attr("text-anchor", "middle") - .attr("dy", "10px") - .attr("font-family", "sans-serif") - .attr("font-size", "20px"); - - svg.append("circle") - .attr("cx", 50+4) - .attr("cy", 10+30) - .style("fill","red") - .attr("r", 5); - - svg.append("text") - .attr("x", 50+20) - .attr("y", 35) - .text("Prediction of future difficulty, without ECIP-1010") - //.attr("text-anchor", "middle") - .attr("dy", "10px") - .attr("font-family", "sans-serif") - .attr("font-size", "20px"); - - svg.append("circle") - .attr("cx", 50+4) - .attr("cy", 10+30+25) - .style("fill","green") - .attr("r", 5); - - svg.append("text") - .attr("x", 50+20) - .attr("y", 35+25) - .text("Prediction of future difficulty, with ECIP-1010") - //.attr("text-anchor", "middle") - .attr("dy", "10px") - .attr("font-family", "sans-serif") - .attr("font-size", "20px"); - - //add mark - - //console.log(bomb_array_with_ECIP_1010); - - - var block_3000000_time = _.find(bomb_array_with_ECIP_1010, function(d) { return d.number == 3000000; }); - - //console.log(block_3000000_time); - //console.log(block_3000000_time.Date); - - svg.append("line") - .attr("x1", x(new Date(_.last(arg1.etc_hashrate).unixtime*1000))+10) - .attr("y1", 0+270) - .attr("x2", x(new Date(_.last(arg1.etc_hashrate).unixtime*1000))+10) - .attr("y2", 10+270) - .attr("stroke-width", 1) - .attr("stroke", "black"); - - svg.append("line") - .attr("x1", x(new Date(block_3000000_time.Date*1000))) - .attr("y1", 0+270) - .attr("x2", x(new Date(block_3000000_time.Date*1000))) - .attr("y2", 10+270) - .attr("stroke-width", 1) - //.style("stroke-dasharray", ("3, 3")) - .attr("stroke", "black"); - - svg.append("line") - .attr("x1", x(new Date(block_3000000_time.Date*1000))) - .attr("y1", 0+270-80) - .attr("x2", x(new Date(block_3000000_time.Date*1000))) - .attr("y2", 10+270) - .attr("stroke-width", 1) - .style("stroke-dasharray", ("3, 3")) - .attr("stroke", "black"); - - svg.append("text") - .attr("x", x(new Date(block_3000000_time.Date*1000))) - //.attr("x", x(new Date(_.last(arg1.etc_hashrate).unixtime*1000))+10) - .attr("y", 0+260-80-10-15) - .text("ECIP-1010 Deploy, Block 3000000") - .attr("text-anchor", "middle") - .attr("dy", "10px") - .attr("font-family", "sans-serif") - .attr("font-size", "20px"); - - svg.append("text") - .attr("x", x(new Date(block_3000000_time.Date*1000))) - //.attr("x", x(new Date(_.last(arg1.etc_hashrate).unixtime*1000))+10) - .attr("y", 0+260-80-10) - .text(new Date(block_3000000_time.Date*1000)+" (expected)") - .attr("text-anchor", "middle") - .attr("dy", "10px") - .attr("font-family", "sans-serif") - .attr("font-size", "20px"); - - - - svg.append("line") - .attr("x1", x(new Date(_.last(arg1.etc_hashrate).unixtime*1000))+10) - .attr("y1", 5+270) - .attr("x2", x(new Date(block_3000000_time.Date*1000))) - .attr("y2", 5+270) - .attr("stroke-width", 1) - .attr("stroke", "black"); - - var duration = block_3000000_time.Date - _.last(arg1.etc_hashrate).unixtime; - //console.log(duration); - //console.log(moment.duration(duration, 'seconds').humanize()); - - - - svg.append("text") - .attr("x", x(new Date(( duration/2 + _.last(arg1.etc_hashrate).unixtime ) *1000))+0) - //.attr("x", x(new Date(_.last(arg1.etc_hashrate).unixtime*1000))+10) - .attr("y", 0+260) - .text(moment.duration(duration, 'seconds').humanize()) - .attr("text-anchor", "middle") - .attr("dy", "10px") - .attr("font-family", "sans-serif") - .attr("font-size", "20px"); - - - var block_4000000_time = _.find(bomb_array_with_ECIP_1010, function(d) { return d.number == 4000000; }); - - var duration_30_40 = block_4000000_time.Date - block_3000000_time.Date; - //console.log(duration_30_40); - //console.log(moment.duration(duration_30_40, 'seconds').humanize()); - - svg.append("line") - .attr("x1", x(new Date(block_3000000_time.Date*1000))) - .attr("y1", 5+270) - .attr("x2", x(new Date(block_4000000_time.Date*1000))) - .attr("y2", 5+270) - .attr("stroke-width", 1) - .attr("stroke", "black"); - - //((block_4000000_time.Date-block_3000000_time.Date)/2+block_3000000_time.Date) - - svg.append("text") - .attr("x", x(new Date(((block_4000000_time.Date-block_3000000_time.Date)/2+block_3000000_time.Date)*1000))) - .attr("y", 0+260) - .text(moment.duration(duration_30_40, 'seconds').humanize()) - .attr("text-anchor", "middle") - .attr("dy", "10px") - .attr("font-family", "sans-serif") - .attr("font-size", "20px"); - - svg.append("line") - .attr("x1", x(new Date(block_4000000_time.Date*1000))) - .attr("y1", 0+270) - .attr("x2", x(new Date(block_4000000_time.Date*1000))) - .attr("y2", 10+270) - .attr("stroke-width", 1) - .attr("stroke", "black"); - - - var block_6000000_time = _.find(bomb_array_with_ECIP_1010, function(d) { return d.number == 6000000; }); - - var duration_40_60 = block_6000000_time.Date - block_4000000_time.Date; - //console.log(duration_40_60); - //console.log(moment.duration(duration_40_60, 'seconds').humanize()); - - svg.append("line") - .attr("x1", x(new Date(block_4000000_time.Date*1000))) - .attr("y1", 5+270) - .attr("x2", x(new Date(block_6000000_time.Date*1000))) - .attr("y2", 5+270) - .attr("stroke-width", 1) - .attr("stroke", "black"); - - svg.append("line") - .attr("x1", x(new Date(block_6000000_time.Date*1000))) - .attr("y1", 0+270) - .attr("x2", x(new Date(block_6000000_time.Date*1000))) - .attr("y2", 10+270) - .attr("stroke-width", 1) - .attr("stroke", "black"); - - // ((block_6000000_time.Date-block_4000000_time.Date)/2+block_4000000_time.Date); - - svg.append("text") - //.attr("x", x(new Date((block_4000000_time.Date*1000)))) - .attr("x", x(new Date(( ((block_6000000_time.Date-block_4000000_time.Date)/2+block_4000000_time.Date)*1000)))) - .attr("y", 0+260) - .text(moment.duration(duration_40_60, 'seconds').humanize()) - .attr("text-anchor", "middle") - .attr("dy", "10px") - .attr("font-family", "sans-serif") - .attr("font-size", "20px"); - - - - - // Add Tooltip - var focus = svg.append("g") - .attr("class", "focus") - .style("display", "none"); - - focus.append("circle") - .attr("r", 4.5); - - focus.append("text") - .attr("x", 9) - .attr("dy", ".35em"); - - - svg.append("rect") - .attr("class", "overlay") - .attr("width", width) - .attr("height", height) - .on("mouseover", function() { focus.style("display", null); }) - .on("mouseout", function() { focus.style("display", "none"); }) - .on("mousemove", mousemove); - - - function mousemove() { - var x0 = x.invert(d3.mouse(this)[0]); - //console.log(moment(x0).unix()); - - - var s1 = _.minBy(data, function(d) { - //console.log(d.unixtime); - return Math.abs(moment(x0).unix()-d.unixtime); - }); - - //console.log(moment(s1.unixtime*1000).format()); - //console.log(s1.instantHashrate); - - - - //focus.attr("transform", "translate(" + x(d.date) + "," + y(d.close) + ")"); - focus.attr("transform", "translate(" + x(moment(x0).unix()*1000) + "," + y(s1.difficulty) + ")"); - } - - - - - callback(null, 'three'); - } - function myLastFunction(arg1, callback) { - // arg1 now equals 'three' - callback(null, 'done'); - } - - - -}; - -//call_hashrate_chart(); - -var data = {}; -data.title = "title"; -data.message = "message"; -data.action = "miners"; - -$.ajax({ - type: 'POST', - data: JSON.stringify(data), - contentType: 'application/json', - url: 'http://127.0.0.1:3000/stats', - success: function(data) { - //console.log('success'); - //console.log(JSON.stringify(data)); - } -}); - - -/* - console.log("req.body"); - console.log(req.body); - - if (req.body.action=="miners"){ - console.log("OJ"); - } - - var obj = {}; - console.log('body: ' + JSON.stringify(req.body)); - res.send(req.body); - - */ diff --git a/public/js/stats/bundle_The_bomb_chart.js b/public/js/stats/bundle_The_bomb_chart.js deleted file mode 100644 index 517e398d8..000000000 --- a/public/js/stats/bundle_The_bomb_chart.js +++ /dev/null @@ -1,84457 +0,0 @@ -(function e(t,n,r){function s(o,u){if(!n[o]){if(!t[o]){var a=typeof require=="function"&&require;if(!u&&a)return a(o,!0);if(i)return i(o,!0);var f=new Error("Cannot find module '"+o+"'");throw f.code="MODULE_NOT_FOUND",f}var l=n[o]={exports:{}};t[o][0].call(l.exports,function(e){var n=t[o][1][e];return s(n?n:e)},l,l.exports,e,t,n,r)}return n[o].exports}var i=typeof require=="function"&&require;for(var o=0;o All rights reserved. - - -module.exports = { - - newInvalidAsn1Error: function(msg) { - var e = new Error(); - e.name = 'InvalidAsn1Error'; - e.message = msg || ''; - return e; - } - -}; - -},{}],3:[function(require,module,exports){ -// Copyright 2011 Mark Cavage All rights reserved. - -var errors = require('./errors'); -var types = require('./types'); - -var Reader = require('./reader'); -var Writer = require('./writer'); - - -///--- Exports - -module.exports = { - - Reader: Reader, - - Writer: Writer - -}; - -for (var t in types) { - if (types.hasOwnProperty(t)) - module.exports[t] = types[t]; -} -for (var e in errors) { - if (errors.hasOwnProperty(e)) - module.exports[e] = errors[e]; -} - -},{"./errors":2,"./reader":4,"./types":5,"./writer":6}],4:[function(require,module,exports){ -(function (Buffer){ -// Copyright 2011 Mark Cavage All rights reserved. - -var assert = require('assert'); - -var ASN1 = require('./types'); -var errors = require('./errors'); - - -///--- Globals - -var newInvalidAsn1Error = errors.newInvalidAsn1Error; - - - -///--- API - -function Reader(data) { - if (!data || !Buffer.isBuffer(data)) - throw new TypeError('data must be a node Buffer'); - - this._buf = data; - this._size = data.length; - - // These hold the "current" state - this._len = 0; - this._offset = 0; -} - -Object.defineProperty(Reader.prototype, 'length', { - enumerable: true, - get: function () { return (this._len); } -}); - -Object.defineProperty(Reader.prototype, 'offset', { - enumerable: true, - get: function () { return (this._offset); } -}); - -Object.defineProperty(Reader.prototype, 'remain', { - get: function () { return (this._size - this._offset); } -}); - -Object.defineProperty(Reader.prototype, 'buffer', { - get: function () { return (this._buf.slice(this._offset)); } -}); - - -/** - * Reads a single byte and advances offset; you can pass in `true` to make this - * a "peek" operation (i.e., get the byte, but don't advance the offset). - * - * @param {Boolean} peek true means don't move offset. - * @return {Number} the next byte, null if not enough data. - */ -Reader.prototype.readByte = function(peek) { - if (this._size - this._offset < 1) - return null; - - var b = this._buf[this._offset] & 0xff; - - if (!peek) - this._offset += 1; - - return b; -}; - - -Reader.prototype.peek = function() { - return this.readByte(true); -}; - - -/** - * Reads a (potentially) variable length off the BER buffer. This call is - * not really meant to be called directly, as callers have to manipulate - * the internal buffer afterwards. - * - * As a result of this call, you can call `Reader.length`, until the - * next thing called that does a readLength. - * - * @return {Number} the amount of offset to advance the buffer. - * @throws {InvalidAsn1Error} on bad ASN.1 - */ -Reader.prototype.readLength = function(offset) { - if (offset === undefined) - offset = this._offset; - - if (offset >= this._size) - return null; - - var lenB = this._buf[offset++] & 0xff; - if (lenB === null) - return null; - - if ((lenB & 0x80) == 0x80) { - lenB &= 0x7f; - - if (lenB == 0) - throw newInvalidAsn1Error('Indefinite length not supported'); - - if (lenB > 4) - throw newInvalidAsn1Error('encoding too long'); - - if (this._size - offset < lenB) - return null; - - this._len = 0; - for (var i = 0; i < lenB; i++) - this._len = (this._len << 8) + (this._buf[offset++] & 0xff); - - } else { - // Wasn't a variable length - this._len = lenB; - } - - return offset; -}; - - -/** - * Parses the next sequence in this BER buffer. - * - * To get the length of the sequence, call `Reader.length`. - * - * @return {Number} the sequence's tag. - */ -Reader.prototype.readSequence = function(tag) { - var seq = this.peek(); - if (seq === null) - return null; - if (tag !== undefined && tag !== seq) - throw newInvalidAsn1Error('Expected 0x' + tag.toString(16) + - ': got 0x' + seq.toString(16)); - - var o = this.readLength(this._offset + 1); // stored in `length` - if (o === null) - return null; - - this._offset = o; - return seq; -}; - - -Reader.prototype.readInt = function() { - return this._readTag(ASN1.Integer); -}; - - -Reader.prototype.readBoolean = function() { - return (this._readTag(ASN1.Boolean) === 0 ? false : true); -}; - - -Reader.prototype.readEnumeration = function() { - return this._readTag(ASN1.Enumeration); -}; - - -Reader.prototype.readString = function(tag, retbuf) { - if (!tag) - tag = ASN1.OctetString; - - var b = this.peek(); - if (b === null) - return null; - - if (b !== tag) - throw newInvalidAsn1Error('Expected 0x' + tag.toString(16) + - ': got 0x' + b.toString(16)); - - var o = this.readLength(this._offset + 1); // stored in `length` - - if (o === null) - return null; - - if (this.length > this._size - o) - return null; - - this._offset = o; - - if (this.length === 0) - return retbuf ? new Buffer(0) : ''; - - var str = this._buf.slice(this._offset, this._offset + this.length); - this._offset += this.length; - - return retbuf ? str : str.toString('utf8'); -}; - -Reader.prototype.readOID = function(tag) { - if (!tag) - tag = ASN1.OID; - - var b = this.readString(tag, true); - if (b === null) - return null; - - var values = []; - var value = 0; - - for (var i = 0; i < b.length; i++) { - var byte = b[i] & 0xff; - - value <<= 7; - value += byte & 0x7f; - if ((byte & 0x80) == 0) { - values.push(value); - value = 0; - } - } - - value = values.shift(); - values.unshift(value % 40); - values.unshift((value / 40) >> 0); - - return values.join('.'); -}; - - -Reader.prototype._readTag = function(tag) { - assert.ok(tag !== undefined); - - var b = this.peek(); - - if (b === null) - return null; - - if (b !== tag) - throw newInvalidAsn1Error('Expected 0x' + tag.toString(16) + - ': got 0x' + b.toString(16)); - - var o = this.readLength(this._offset + 1); // stored in `length` - if (o === null) - return null; - - if (this.length > 4) - throw newInvalidAsn1Error('Integer too long: ' + this.length); - - if (this.length > this._size - o) - return null; - this._offset = o; - - var fb = this._buf[this._offset]; - var value = 0; - - for (var i = 0; i < this.length; i++) { - value <<= 8; - value |= (this._buf[this._offset++] & 0xff); - } - - if ((fb & 0x80) == 0x80 && i !== 4) - value -= (1 << (i * 8)); - - return value >> 0; -}; - - - -///--- Exported API - -module.exports = Reader; - -}).call(this,require("buffer").Buffer) -},{"./errors":2,"./types":5,"assert":151,"buffer":185}],5:[function(require,module,exports){ -// Copyright 2011 Mark Cavage All rights reserved. - - -module.exports = { - EOC: 0, - Boolean: 1, - Integer: 2, - BitString: 3, - OctetString: 4, - Null: 5, - OID: 6, - ObjectDescriptor: 7, - External: 8, - Real: 9, // float - Enumeration: 10, - PDV: 11, - Utf8String: 12, - RelativeOID: 13, - Sequence: 16, - Set: 17, - NumericString: 18, - PrintableString: 19, - T61String: 20, - VideotexString: 21, - IA5String: 22, - UTCTime: 23, - GeneralizedTime: 24, - GraphicString: 25, - VisibleString: 26, - GeneralString: 28, - UniversalString: 29, - CharacterString: 30, - BMPString: 31, - Constructor: 32, - Context: 128 -}; - -},{}],6:[function(require,module,exports){ -(function (Buffer){ -// Copyright 2011 Mark Cavage All rights reserved. - -var assert = require('assert'); -var ASN1 = require('./types'); -var errors = require('./errors'); - - -///--- Globals - -var newInvalidAsn1Error = errors.newInvalidAsn1Error; - -var DEFAULT_OPTS = { - size: 1024, - growthFactor: 8 -}; - - -///--- Helpers - -function merge(from, to) { - assert.ok(from); - assert.equal(typeof(from), 'object'); - assert.ok(to); - assert.equal(typeof(to), 'object'); - - var keys = Object.getOwnPropertyNames(from); - keys.forEach(function(key) { - if (to[key]) - return; - - var value = Object.getOwnPropertyDescriptor(from, key); - Object.defineProperty(to, key, value); - }); - - return to; -} - - - -///--- API - -function Writer(options) { - options = merge(DEFAULT_OPTS, options || {}); - - this._buf = new Buffer(options.size || 1024); - this._size = this._buf.length; - this._offset = 0; - this._options = options; - - // A list of offsets in the buffer where we need to insert - // sequence tag/len pairs. - this._seq = []; -} - -Object.defineProperty(Writer.prototype, 'buffer', { - get: function () { - if (this._seq.length) - throw new InvalidAsn1Error(this._seq.length + ' unended sequence(s)'); - - return (this._buf.slice(0, this._offset)); - } -}); - -Writer.prototype.writeByte = function(b) { - if (typeof(b) !== 'number') - throw new TypeError('argument must be a Number'); - - this._ensure(1); - this._buf[this._offset++] = b; -}; - - -Writer.prototype.writeInt = function(i, tag) { - if (typeof(i) !== 'number') - throw new TypeError('argument must be a Number'); - if (typeof(tag) !== 'number') - tag = ASN1.Integer; - - var sz = 4; - - while ((((i & 0xff800000) === 0) || ((i & 0xff800000) === 0xff800000 >> 0)) && - (sz > 1)) { - sz--; - i <<= 8; - } - - if (sz > 4) - throw new InvalidAsn1Error('BER ints cannot be > 0xffffffff'); - - this._ensure(2 + sz); - this._buf[this._offset++] = tag; - this._buf[this._offset++] = sz; - - while (sz-- > 0) { - this._buf[this._offset++] = ((i & 0xff000000) >>> 24); - i <<= 8; - } - -}; - - -Writer.prototype.writeNull = function() { - this.writeByte(ASN1.Null); - this.writeByte(0x00); -}; - - -Writer.prototype.writeEnumeration = function(i, tag) { - if (typeof(i) !== 'number') - throw new TypeError('argument must be a Number'); - if (typeof(tag) !== 'number') - tag = ASN1.Enumeration; - - return this.writeInt(i, tag); -}; - - -Writer.prototype.writeBoolean = function(b, tag) { - if (typeof(b) !== 'boolean') - throw new TypeError('argument must be a Boolean'); - if (typeof(tag) !== 'number') - tag = ASN1.Boolean; - - this._ensure(3); - this._buf[this._offset++] = tag; - this._buf[this._offset++] = 0x01; - this._buf[this._offset++] = b ? 0xff : 0x00; -}; - - -Writer.prototype.writeString = function(s, tag) { - if (typeof(s) !== 'string') - throw new TypeError('argument must be a string (was: ' + typeof(s) + ')'); - if (typeof(tag) !== 'number') - tag = ASN1.OctetString; - - var len = Buffer.byteLength(s); - this.writeByte(tag); - this.writeLength(len); - if (len) { - this._ensure(len); - this._buf.write(s, this._offset); - this._offset += len; - } -}; - - -Writer.prototype.writeBuffer = function(buf, tag) { - if (typeof(tag) !== 'number') - throw new TypeError('tag must be a number'); - if (!Buffer.isBuffer(buf)) - throw new TypeError('argument must be a buffer'); - - this.writeByte(tag); - this.writeLength(buf.length); - this._ensure(buf.length); - buf.copy(this._buf, this._offset, 0, buf.length); - this._offset += buf.length; -}; - - -Writer.prototype.writeStringArray = function(strings) { - if ((!strings instanceof Array)) - throw new TypeError('argument must be an Array[String]'); - - var self = this; - strings.forEach(function(s) { - self.writeString(s); - }); -}; - -// This is really to solve DER cases, but whatever for now -Writer.prototype.writeOID = function(s, tag) { - if (typeof(s) !== 'string') - throw new TypeError('argument must be a string'); - if (typeof(tag) !== 'number') - tag = ASN1.OID; - - if (!/^([0-9]+\.){3,}[0-9]+$/.test(s)) - throw new Error('argument is not a valid OID string'); - - function encodeOctet(bytes, octet) { - if (octet < 128) { - bytes.push(octet); - } else if (octet < 16384) { - bytes.push((octet >>> 7) | 0x80); - bytes.push(octet & 0x7F); - } else if (octet < 2097152) { - bytes.push((octet >>> 14) | 0x80); - bytes.push(((octet >>> 7) | 0x80) & 0xFF); - bytes.push(octet & 0x7F); - } else if (octet < 268435456) { - bytes.push((octet >>> 21) | 0x80); - bytes.push(((octet >>> 14) | 0x80) & 0xFF); - bytes.push(((octet >>> 7) | 0x80) & 0xFF); - bytes.push(octet & 0x7F); - } else { - bytes.push(((octet >>> 28) | 0x80) & 0xFF); - bytes.push(((octet >>> 21) | 0x80) & 0xFF); - bytes.push(((octet >>> 14) | 0x80) & 0xFF); - bytes.push(((octet >>> 7) | 0x80) & 0xFF); - bytes.push(octet & 0x7F); - } - } - - var tmp = s.split('.'); - var bytes = []; - bytes.push(parseInt(tmp[0], 10) * 40 + parseInt(tmp[1], 10)); - tmp.slice(2).forEach(function(b) { - encodeOctet(bytes, parseInt(b, 10)); - }); - - var self = this; - this._ensure(2 + bytes.length); - this.writeByte(tag); - this.writeLength(bytes.length); - bytes.forEach(function(b) { - self.writeByte(b); - }); -}; - - -Writer.prototype.writeLength = function(len) { - if (typeof(len) !== 'number') - throw new TypeError('argument must be a Number'); - - this._ensure(4); - - if (len <= 0x7f) { - this._buf[this._offset++] = len; - } else if (len <= 0xff) { - this._buf[this._offset++] = 0x81; - this._buf[this._offset++] = len; - } else if (len <= 0xffff) { - this._buf[this._offset++] = 0x82; - this._buf[this._offset++] = len >> 8; - this._buf[this._offset++] = len; - } else if (len <= 0xffffff) { - this._buf[this._offset++] = 0x83; - this._buf[this._offset++] = len >> 16; - this._buf[this._offset++] = len >> 8; - this._buf[this._offset++] = len; - } else { - throw new InvalidAsn1ERror('Length too long (> 4 bytes)'); - } -}; - -Writer.prototype.startSequence = function(tag) { - if (typeof(tag) !== 'number') - tag = ASN1.Sequence | ASN1.Constructor; - - this.writeByte(tag); - this._seq.push(this._offset); - this._ensure(3); - this._offset += 3; -}; - - -Writer.prototype.endSequence = function() { - var seq = this._seq.pop(); - var start = seq + 3; - var len = this._offset - start; - - if (len <= 0x7f) { - this._shift(start, len, -2); - this._buf[seq] = len; - } else if (len <= 0xff) { - this._shift(start, len, -1); - this._buf[seq] = 0x81; - this._buf[seq + 1] = len; - } else if (len <= 0xffff) { - this._buf[seq] = 0x82; - this._buf[seq + 1] = len >> 8; - this._buf[seq + 2] = len; - } else if (len <= 0xffffff) { - this._shift(start, len, 1); - this._buf[seq] = 0x83; - this._buf[seq + 1] = len >> 16; - this._buf[seq + 2] = len >> 8; - this._buf[seq + 3] = len; - } else { - throw new InvalidAsn1Error('Sequence too long'); - } -}; - - -Writer.prototype._shift = function(start, len, shift) { - assert.ok(start !== undefined); - assert.ok(len !== undefined); - assert.ok(shift); - - this._buf.copy(this._buf, start + shift, start, start + len); - this._offset += shift; -}; - -Writer.prototype._ensure = function(len) { - assert.ok(len); - - if (this._size - this._offset < len) { - var sz = this._size * this._options.growthFactor; - if (sz - this._offset < len) - sz += len; - - var buf = new Buffer(sz); - - this._buf.copy(buf, 0, 0, this._offset); - this._buf = buf; - this._size = sz; - } -}; - - - -///--- Exported API - -module.exports = Writer; - -}).call(this,require("buffer").Buffer) -},{"./errors":2,"./types":5,"assert":151,"buffer":185}],7:[function(require,module,exports){ -// Copyright 2011 Mark Cavage All rights reserved. - -// If you have no idea what ASN.1 or BER is, see this: -// ftp://ftp.rsa.com/pub/pkcs/ascii/layman.asc - -var Ber = require('./ber/index'); - - - -///--- Exported API - -module.exports = { - - Ber: Ber, - - BerReader: Ber.Reader, - - BerWriter: Ber.Writer - -}; - -},{"./ber/index":3}],8:[function(require,module,exports){ -(function (Buffer,process){ -// Copyright (c) 2012, Mark Cavage. All rights reserved. -// Copyright 2015 Joyent, Inc. - -var assert = require('assert'); -var Stream = require('stream').Stream; -var util = require('util'); - - -///--- Globals - -/* JSSTYLED */ -var UUID_REGEXP = /^[a-fA-F0-9]{8}-[a-fA-F0-9]{4}-[a-fA-F0-9]{4}-[a-fA-F0-9]{4}-[a-fA-F0-9]{12}$/; - - -///--- Internal - -function _capitalize(str) { - return (str.charAt(0).toUpperCase() + str.slice(1)); -} - -function _toss(name, expected, oper, arg, actual) { - throw new assert.AssertionError({ - message: util.format('%s (%s) is required', name, expected), - actual: (actual === undefined) ? typeof (arg) : actual(arg), - expected: expected, - operator: oper || '===', - stackStartFunction: _toss.caller - }); -} - -function _getClass(arg) { - return (Object.prototype.toString.call(arg).slice(8, -1)); -} - -function noop() { - // Why even bother with asserts? -} - - -///--- Exports - -var types = { - bool: { - check: function (arg) { return typeof (arg) === 'boolean'; } - }, - func: { - check: function (arg) { return typeof (arg) === 'function'; } - }, - string: { - check: function (arg) { return typeof (arg) === 'string'; } - }, - object: { - check: function (arg) { - return typeof (arg) === 'object' && arg !== null; - } - }, - number: { - check: function (arg) { - return typeof (arg) === 'number' && !isNaN(arg) && isFinite(arg); - } - }, - buffer: { - check: function (arg) { return Buffer.isBuffer(arg); }, - operator: 'Buffer.isBuffer' - }, - array: { - check: function (arg) { return Array.isArray(arg); }, - operator: 'Array.isArray' - }, - stream: { - check: function (arg) { return arg instanceof Stream; }, - operator: 'instanceof', - actual: _getClass - }, - date: { - check: function (arg) { return arg instanceof Date; }, - operator: 'instanceof', - actual: _getClass - }, - regexp: { - check: function (arg) { return arg instanceof RegExp; }, - operator: 'instanceof', - actual: _getClass - }, - uuid: { - check: function (arg) { - return typeof (arg) === 'string' && UUID_REGEXP.test(arg); - }, - operator: 'isUUID' - } -}; - -function _setExports(ndebug) { - var keys = Object.keys(types); - var out; - - /* re-export standard assert */ - if (process.env.NODE_NDEBUG) { - out = noop; - } else { - out = function (arg, msg) { - if (!arg) { - _toss(msg, 'true', arg); - } - }; - } - - /* standard checks */ - keys.forEach(function (k) { - if (ndebug) { - out[k] = noop; - return; - } - var type = types[k]; - out[k] = function (arg, msg) { - if (!type.check(arg)) { - _toss(msg, k, type.operator, arg, type.actual); - } - }; - }); - - /* optional checks */ - keys.forEach(function (k) { - var name = 'optional' + _capitalize(k); - if (ndebug) { - out[name] = noop; - return; - } - var type = types[k]; - out[name] = function (arg, msg) { - if (arg === undefined || arg === null) { - return; - } - if (!type.check(arg)) { - _toss(msg, k, type.operator, arg, type.actual); - } - }; - }); - - /* arrayOf checks */ - keys.forEach(function (k) { - var name = 'arrayOf' + _capitalize(k); - if (ndebug) { - out[name] = noop; - return; - } - var type = types[k]; - var expected = '[' + k + ']'; - out[name] = function (arg, msg) { - if (!Array.isArray(arg)) { - _toss(msg, expected, type.operator, arg, type.actual); - } - var i; - for (i = 0; i < arg.length; i++) { - if (!type.check(arg[i])) { - _toss(msg, expected, type.operator, arg, type.actual); - } - } - }; - }); - - /* optionalArrayOf checks */ - keys.forEach(function (k) { - var name = 'optionalArrayOf' + _capitalize(k); - if (ndebug) { - out[name] = noop; - return; - } - var type = types[k]; - var expected = '[' + k + ']'; - out[name] = function (arg, msg) { - if (arg === undefined || arg === null) { - return; - } - if (!Array.isArray(arg)) { - _toss(msg, expected, type.operator, arg, type.actual); - } - var i; - for (i = 0; i < arg.length; i++) { - if (!type.check(arg[i])) { - _toss(msg, expected, type.operator, arg, type.actual); - } - } - }; - }); - - /* re-export built-in assertions */ - Object.keys(assert).forEach(function (k) { - if (k === 'AssertionError') { - out[k] = assert[k]; - return; - } - if (ndebug) { - out[k] = noop; - return; - } - out[k] = assert[k]; - }); - - /* export ourselves (for unit tests _only_) */ - out._setExports = _setExports; - - return out; -} - -module.exports = _setExports(process.env.NODE_NDEBUG); - -}).call(this,{"isBuffer":require("../../../../../../../../usr/local/lib/node_modules/watchify/node_modules/is-buffer/index.js")},require('_process')) -},{"../../../../../../../../usr/local/lib/node_modules/watchify/node_modules/is-buffer/index.js":234,"_process":256,"assert":151,"stream":287,"util":298}],9:[function(require,module,exports){ - -/*! - * Copyright 2010 LearnBoost - * - * Licensed under the Apache License, Version 2.0 (the "License"); - * you may not use this file except in compliance with the License. - * You may obtain a copy of the License at - * - * http://www.apache.org/licenses/LICENSE-2.0 - * - * Unless required by applicable law or agreed to in writing, software - * distributed under the License is distributed on an "AS IS" BASIS, - * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. - * See the License for the specific language governing permissions and - * limitations under the License. - */ - -/** - * Module dependencies. - */ - -var crypto = require('crypto') - , parse = require('url').parse - ; - -/** - * Valid keys. - */ - -var keys = - [ 'acl' - , 'location' - , 'logging' - , 'notification' - , 'partNumber' - , 'policy' - , 'requestPayment' - , 'torrent' - , 'uploadId' - , 'uploads' - , 'versionId' - , 'versioning' - , 'versions' - , 'website' - ] - -/** - * Return an "Authorization" header value with the given `options` - * in the form of "AWS :" - * - * @param {Object} options - * @return {String} - * @api private - */ - -function authorization (options) { - return 'AWS ' + options.key + ':' + sign(options) -} - -module.exports = authorization -module.exports.authorization = authorization - -/** - * Simple HMAC-SHA1 Wrapper - * - * @param {Object} options - * @return {String} - * @api private - */ - -function hmacSha1 (options) { - return crypto.createHmac('sha1', options.secret).update(options.message).digest('base64') -} - -module.exports.hmacSha1 = hmacSha1 - -/** - * Create a base64 sha1 HMAC for `options`. - * - * @param {Object} options - * @return {String} - * @api private - */ - -function sign (options) { - options.message = stringToSign(options) - return hmacSha1(options) -} -module.exports.sign = sign - -/** - * Create a base64 sha1 HMAC for `options`. - * - * Specifically to be used with S3 presigned URLs - * - * @param {Object} options - * @return {String} - * @api private - */ - -function signQuery (options) { - options.message = queryStringToSign(options) - return hmacSha1(options) -} -module.exports.signQuery= signQuery - -/** - * Return a string for sign() with the given `options`. - * - * Spec: - * - * \n - * \n - * \n - * \n - * [headers\n] - * - * - * @param {Object} options - * @return {String} - * @api private - */ - -function stringToSign (options) { - var headers = options.amazonHeaders || '' - if (headers) headers += '\n' - var r = - [ options.verb - , options.md5 - , options.contentType - , options.date ? options.date.toUTCString() : '' - , headers + options.resource - ] - return r.join('\n') -} -module.exports.queryStringToSign = stringToSign - -/** - * Return a string for sign() with the given `options`, but is meant exclusively - * for S3 presigned URLs - * - * Spec: - * - * \n - * - * - * @param {Object} options - * @return {String} - * @api private - */ - -function queryStringToSign (options){ - return 'GET\n\n\n' + options.date + '\n' + options.resource -} -module.exports.queryStringToSign = queryStringToSign - -/** - * Perform the following: - * - * - ignore non-amazon headers - * - lowercase fields - * - sort lexicographically - * - trim whitespace between ":" - * - join with newline - * - * @param {Object} headers - * @return {String} - * @api private - */ - -function canonicalizeHeaders (headers) { - var buf = [] - , fields = Object.keys(headers) - ; - for (var i = 0, len = fields.length; i < len; ++i) { - var field = fields[i] - , val = headers[field] - , field = field.toLowerCase() - ; - if (0 !== field.indexOf('x-amz')) continue - buf.push(field + ':' + val) - } - return buf.sort().join('\n') -} -module.exports.canonicalizeHeaders = canonicalizeHeaders - -/** - * Perform the following: - * - * - ignore non sub-resources - * - sort lexicographically - * - * @param {String} resource - * @return {String} - * @api private - */ - -function canonicalizeResource (resource) { - var url = parse(resource, true) - , path = url.pathname - , buf = [] - ; - - Object.keys(url.query).forEach(function(key){ - if (!~keys.indexOf(key)) return - var val = '' == url.query[key] ? '' : '=' + encodeURIComponent(url.query[key]) - buf.push(key + val) - }) - - return path + (buf.length ? '?' + buf.sort().join('&') : '') -} -module.exports.canonicalizeResource = canonicalizeResource - -},{"crypto":194,"url":294}],10:[function(require,module,exports){ -(function (process,Buffer){ -var aws4 = exports, - url = require('url'), - querystring = require('querystring'), - crypto = require('crypto'), - lru = require('./lru'), - credentialsCache = lru(1000) - -// http://docs.amazonwebservices.com/general/latest/gr/signature-version-4.html - -function hmac(key, string, encoding) { - return crypto.createHmac('sha256', key).update(string, 'utf8').digest(encoding) -} - -function hash(string, encoding) { - return crypto.createHash('sha256').update(string, 'utf8').digest(encoding) -} - -// This function assumes the string has already been percent encoded -function encodeRfc3986(urlEncodedString) { - return urlEncodedString.replace(/[!'()*]/g, function(c) { - return '%' + c.charCodeAt(0).toString(16).toUpperCase() - }) -} - -// request: { path | body, [host], [method], [headers], [service], [region] } -// credentials: { accessKeyId, secretAccessKey, [sessionToken] } -function RequestSigner(request, credentials) { - - if (typeof request === 'string') request = url.parse(request) - - var headers = request.headers = (request.headers || {}), - hostParts = this.matchHost(request.hostname || request.host || headers.Host || headers.host) - - this.request = request - this.credentials = credentials || this.defaultCredentials() - - this.service = request.service || hostParts[0] || '' - this.region = request.region || hostParts[1] || 'us-east-1' - - // SES uses a different domain from the service name - if (this.service === 'email') this.service = 'ses' - - if (!request.method && request.body) - request.method = 'POST' - - if (!headers.Host && !headers.host) { - headers.Host = request.hostname || request.host || this.createHost() - - // If a port is specified explicitly, use it as is - if (request.port) - headers.Host += ':' + request.port - } - if (!request.hostname && !request.host) - request.hostname = headers.Host || headers.host -} - -RequestSigner.prototype.matchHost = function(host) { - var match = (host || '').match(/([^\.]+)\.(?:([^\.]*)\.)?amazonaws\.com$/) - var hostParts = (match || []).slice(1, 3) - - // ES's hostParts are sometimes the other way round, if the value that is expected - // to be region equals ‘es’ switch them back - // e.g. search-cluster-name-aaaa00aaaa0aaa0aaaaaaa0aaa.us-east-1.es.amazonaws.com - if (hostParts[1] === 'es') - hostParts = hostParts.reverse() - - return hostParts -} - -// http://docs.aws.amazon.com/general/latest/gr/rande.html -RequestSigner.prototype.isSingleRegion = function() { - // Special case for S3 and SimpleDB in us-east-1 - if (['s3', 'sdb'].indexOf(this.service) >= 0 && this.region === 'us-east-1') return true - - return ['cloudfront', 'ls', 'route53', 'iam', 'importexport', 'sts'] - .indexOf(this.service) >= 0 -} - -RequestSigner.prototype.createHost = function() { - var region = this.isSingleRegion() ? '' : - (this.service === 's3' && this.region !== 'us-east-1' ? '-' : '.') + this.region, - service = this.service === 'ses' ? 'email' : this.service - return service + region + '.amazonaws.com' -} - -RequestSigner.prototype.prepareRequest = function() { - this.parsePath() - - var request = this.request, headers = request.headers, query - - if (request.signQuery) { - - this.parsedPath.query = query = this.parsedPath.query || {} - - if (this.credentials.sessionToken) - query['X-Amz-Security-Token'] = this.credentials.sessionToken - - if (this.service === 's3' && !query['X-Amz-Expires']) - query['X-Amz-Expires'] = 86400 - - if (query['X-Amz-Date']) - this.datetime = query['X-Amz-Date'] - else - query['X-Amz-Date'] = this.getDateTime() - - query['X-Amz-Algorithm'] = 'AWS4-HMAC-SHA256' - query['X-Amz-Credential'] = this.credentials.accessKeyId + '/' + this.credentialString() - query['X-Amz-SignedHeaders'] = this.signedHeaders() - - } else { - - if (!request.doNotModifyHeaders) { - if (request.body && !headers['Content-Type'] && !headers['content-type']) - headers['Content-Type'] = 'application/x-www-form-urlencoded; charset=utf-8' - - if (request.body && !headers['Content-Length'] && !headers['content-length']) - headers['Content-Length'] = Buffer.byteLength(request.body) - - if (this.credentials.sessionToken) - headers['X-Amz-Security-Token'] = this.credentials.sessionToken - - if (this.service === 's3') - headers['X-Amz-Content-Sha256'] = hash(this.request.body || '', 'hex') - - if (headers['X-Amz-Date']) - this.datetime = headers['X-Amz-Date'] - else - headers['X-Amz-Date'] = this.getDateTime() - } - - delete headers.Authorization - delete headers.authorization - } -} - -RequestSigner.prototype.sign = function() { - if (!this.parsedPath) this.prepareRequest() - - if (this.request.signQuery) { - this.parsedPath.query['X-Amz-Signature'] = this.signature() - } else { - this.request.headers.Authorization = this.authHeader() - } - - this.request.path = this.formatPath() - - return this.request -} - -RequestSigner.prototype.getDateTime = function() { - if (!this.datetime) { - var headers = this.request.headers, - date = new Date(headers.Date || headers.date || new Date) - - this.datetime = date.toISOString().replace(/[:\-]|\.\d{3}/g, '') - } - return this.datetime -} - -RequestSigner.prototype.getDate = function() { - return this.getDateTime().substr(0, 8) -} - -RequestSigner.prototype.authHeader = function() { - return [ - 'AWS4-HMAC-SHA256 Credential=' + this.credentials.accessKeyId + '/' + this.credentialString(), - 'SignedHeaders=' + this.signedHeaders(), - 'Signature=' + this.signature(), - ].join(', ') -} - -RequestSigner.prototype.signature = function() { - var date = this.getDate(), - cacheKey = [this.credentials.secretAccessKey, date, this.region, this.service].join(), - kDate, kRegion, kService, kCredentials = credentialsCache.get(cacheKey) - if (!kCredentials) { - kDate = hmac('AWS4' + this.credentials.secretAccessKey, date) - kRegion = hmac(kDate, this.region) - kService = hmac(kRegion, this.service) - kCredentials = hmac(kService, 'aws4_request') - credentialsCache.set(cacheKey, kCredentials) - } - return hmac(kCredentials, this.stringToSign(), 'hex') -} - -RequestSigner.prototype.stringToSign = function() { - return [ - 'AWS4-HMAC-SHA256', - this.getDateTime(), - this.credentialString(), - hash(this.canonicalString(), 'hex'), - ].join('\n') -} - -RequestSigner.prototype.canonicalString = function() { - if (!this.parsedPath) this.prepareRequest() - - var pathStr = this.parsedPath.path, - query = this.parsedPath.query, - queryStr = '', - normalizePath = this.service !== 's3', - decodePath = this.service === 's3' || this.request.doNotEncodePath, - decodeSlashesInPath = this.service === 's3', - firstValOnly = this.service === 's3', - bodyHash = this.service === 's3' && this.request.signQuery ? - 'UNSIGNED-PAYLOAD' : hash(this.request.body || '', 'hex') - - if (query) { - queryStr = encodeRfc3986(querystring.stringify(Object.keys(query).sort().reduce(function(obj, key) { - if (!key) return obj - obj[key] = !Array.isArray(query[key]) ? query[key] : - (firstValOnly ? query[key][0] : query[key].slice().sort()) - return obj - }, {}))) - } - if (pathStr !== '/') { - if (normalizePath) pathStr = pathStr.replace(/\/{2,}/g, '/') - pathStr = pathStr.split('/').reduce(function(path, piece) { - if (normalizePath && piece === '..') { - path.pop() - } else if (!normalizePath || piece !== '.') { - if (decodePath) piece = querystring.unescape(piece) - path.push(encodeRfc3986(querystring.escape(piece))) - } - return path - }, []).join('/') - if (pathStr[0] !== '/') pathStr = '/' + pathStr - if (decodeSlashesInPath) pathStr = pathStr.replace(/%2F/g, '/') - } - - return [ - this.request.method || 'GET', - pathStr, - queryStr, - this.canonicalHeaders() + '\n', - this.signedHeaders(), - bodyHash, - ].join('\n') -} - -RequestSigner.prototype.canonicalHeaders = function() { - var headers = this.request.headers - function trimAll(header) { - return header.toString().trim().replace(/\s+/g, ' ') - } - return Object.keys(headers) - .sort(function(a, b) { return a.toLowerCase() < b.toLowerCase() ? -1 : 1 }) - .map(function(key) { return key.toLowerCase() + ':' + trimAll(headers[key]) }) - .join('\n') -} - -RequestSigner.prototype.signedHeaders = function() { - return Object.keys(this.request.headers) - .map(function(key) { return key.toLowerCase() }) - .sort() - .join(';') -} - -RequestSigner.prototype.credentialString = function() { - return [ - this.getDate(), - this.region, - this.service, - 'aws4_request', - ].join('/') -} - -RequestSigner.prototype.defaultCredentials = function() { - var env = process.env - return { - accessKeyId: env.AWS_ACCESS_KEY_ID || env.AWS_ACCESS_KEY, - secretAccessKey: env.AWS_SECRET_ACCESS_KEY || env.AWS_SECRET_KEY, - sessionToken: env.AWS_SESSION_TOKEN, - } -} - -RequestSigner.prototype.parsePath = function() { - var path = this.request.path || '/', - queryIx = path.indexOf('?'), - query = null - - if (queryIx >= 0) { - query = querystring.parse(path.slice(queryIx + 1)) - path = path.slice(0, queryIx) - } - - // S3 doesn't always encode characters > 127 correctly and - // all services don't encode characters > 255 correctly - // So if there are non-reserved chars (and it's not already all % encoded), just encode them all - if (/[^0-9A-Za-z!'()*\-._~%/]/.test(path)) { - path = path.split('/').map(function(piece) { - return querystring.escape(querystring.unescape(piece)) - }).join('/') - } - - this.parsedPath = { - path: path, - query: query, - } -} - -RequestSigner.prototype.formatPath = function() { - var path = this.parsedPath.path, - query = this.parsedPath.query - - if (!query) return path - - // Services don't support empty query string keys - if (query[''] != null) delete query[''] - - return path + '?' + encodeRfc3986(querystring.stringify(query)) -} - -aws4.RequestSigner = RequestSigner - -aws4.sign = function(request, credentials) { - return new RequestSigner(request, credentials).sign() -} - -}).call(this,require('_process'),require("buffer").Buffer) -},{"./lru":11,"_process":256,"buffer":185,"crypto":194,"querystring":266,"url":294}],11:[function(require,module,exports){ -module.exports = function(size) { - return new LruCache(size) -} - -function LruCache(size) { - this.capacity = size | 0 - this.map = Object.create(null) - this.list = new DoublyLinkedList() -} - -LruCache.prototype.get = function(key) { - var node = this.map[key] - if (node == null) return undefined - this.used(node) - return node.val -} - -LruCache.prototype.set = function(key, val) { - var node = this.map[key] - if (node != null) { - node.val = val - } else { - if (!this.capacity) this.prune() - if (!this.capacity) return false - node = new DoublyLinkedNode(key, val) - this.map[key] = node - this.capacity-- - } - this.used(node) - return true -} - -LruCache.prototype.used = function(node) { - this.list.moveToFront(node) -} - -LruCache.prototype.prune = function() { - var node = this.list.pop() - if (node != null) { - delete this.map[node.key] - this.capacity++ - } -} - - -function DoublyLinkedList() { - this.firstNode = null - this.lastNode = null -} - -DoublyLinkedList.prototype.moveToFront = function(node) { - if (this.firstNode == node) return - - this.remove(node) - - if (this.firstNode == null) { - this.firstNode = node - this.lastNode = node - node.prev = null - node.next = null - } else { - node.prev = null - node.next = this.firstNode - node.next.prev = node - this.firstNode = node - } -} - -DoublyLinkedList.prototype.pop = function() { - var lastNode = this.lastNode - if (lastNode != null) { - this.remove(lastNode) - } - return lastNode -} - -DoublyLinkedList.prototype.remove = function(node) { - if (this.firstNode == node) { - this.firstNode = node.next - } else if (node.prev != null) { - node.prev.next = node.next - } - if (this.lastNode == node) { - this.lastNode = node.prev - } else if (node.next != null) { - node.next.prev = node.prev - } -} - - -function DoublyLinkedNode(key, val) { - this.key = key - this.val = val - this.prev = null - this.next = null -} - -},{}],12:[function(require,module,exports){ -(function (Buffer){ -var DuplexStream = require('readable-stream/duplex') - , util = require('util') - - -function BufferList (callback) { - if (!(this instanceof BufferList)) - return new BufferList(callback) - - this._bufs = [] - this.length = 0 - - if (typeof callback == 'function') { - this._callback = callback - - var piper = function piper (err) { - if (this._callback) { - this._callback(err) - this._callback = null - } - }.bind(this) - - this.on('pipe', function onPipe (src) { - src.on('error', piper) - }) - this.on('unpipe', function onUnpipe (src) { - src.removeListener('error', piper) - }) - } else { - this.append(callback) - } - - DuplexStream.call(this) -} - - -util.inherits(BufferList, DuplexStream) - - -BufferList.prototype._offset = function _offset (offset) { - var tot = 0, i = 0, _t - for (; i < this._bufs.length; i++) { - _t = tot + this._bufs[i].length - if (offset < _t) - return [ i, offset - tot ] - tot = _t - } -} - - -BufferList.prototype.append = function append (buf) { - var i = 0 - , newBuf - - if (Array.isArray(buf)) { - for (; i < buf.length; i++) - this.append(buf[i]) - } else if (buf instanceof BufferList) { - // unwrap argument into individual BufferLists - for (; i < buf._bufs.length; i++) - this.append(buf._bufs[i]) - } else if (buf != null) { - // coerce number arguments to strings, since Buffer(number) does - // uninitialized memory allocation - if (typeof buf == 'number') - buf = buf.toString() - - newBuf = Buffer.isBuffer(buf) ? buf : new Buffer(buf) - this._bufs.push(newBuf) - this.length += newBuf.length - } - - return this -} - - -BufferList.prototype._write = function _write (buf, encoding, callback) { - this.append(buf) - - if (typeof callback == 'function') - callback() -} - - -BufferList.prototype._read = function _read (size) { - if (!this.length) - return this.push(null) - - size = Math.min(size, this.length) - this.push(this.slice(0, size)) - this.consume(size) -} - - -BufferList.prototype.end = function end (chunk) { - DuplexStream.prototype.end.call(this, chunk) - - if (this._callback) { - this._callback(null, this.slice()) - this._callback = null - } -} - - -BufferList.prototype.get = function get (index) { - return this.slice(index, index + 1)[0] -} - - -BufferList.prototype.slice = function slice (start, end) { - return this.copy(null, 0, start, end) -} - - -BufferList.prototype.copy = function copy (dst, dstStart, srcStart, srcEnd) { - if (typeof srcStart != 'number' || srcStart < 0) - srcStart = 0 - if (typeof srcEnd != 'number' || srcEnd > this.length) - srcEnd = this.length - if (srcStart >= this.length) - return dst || new Buffer(0) - if (srcEnd <= 0) - return dst || new Buffer(0) - - var copy = !!dst - , off = this._offset(srcStart) - , len = srcEnd - srcStart - , bytes = len - , bufoff = (copy && dstStart) || 0 - , start = off[1] - , l - , i - - // copy/slice everything - if (srcStart === 0 && srcEnd == this.length) { - if (!copy) // slice, just return a full concat - return Buffer.concat(this._bufs) - - // copy, need to copy individual buffers - for (i = 0; i < this._bufs.length; i++) { - this._bufs[i].copy(dst, bufoff) - bufoff += this._bufs[i].length - } - - return dst - } - - // easy, cheap case where it's a subset of one of the buffers - if (bytes <= this._bufs[off[0]].length - start) { - return copy - ? this._bufs[off[0]].copy(dst, dstStart, start, start + bytes) - : this._bufs[off[0]].slice(start, start + bytes) - } - - if (!copy) // a slice, we need something to copy in to - dst = new Buffer(len) - - for (i = off[0]; i < this._bufs.length; i++) { - l = this._bufs[i].length - start - - if (bytes > l) { - this._bufs[i].copy(dst, bufoff, start) - } else { - this._bufs[i].copy(dst, bufoff, start, start + bytes) - break - } - - bufoff += l - bytes -= l - - if (start) - start = 0 - } - - return dst -} - -BufferList.prototype.toString = function toString (encoding, start, end) { - return this.slice(start, end).toString(encoding) -} - -BufferList.prototype.consume = function consume (bytes) { - while (this._bufs.length) { - if (bytes >= this._bufs[0].length) { - bytes -= this._bufs[0].length - this.length -= this._bufs[0].length - this._bufs.shift() - } else { - this._bufs[0] = this._bufs[0].slice(bytes) - this.length -= bytes - break - } - } - return this -} - - -BufferList.prototype.duplicate = function duplicate () { - var i = 0 - , copy = new BufferList() - - for (; i < this._bufs.length; i++) - copy.append(this._bufs[i]) - - return copy -} - - -BufferList.prototype.destroy = function destroy () { - this._bufs.length = 0 - this.length = 0 - this.push(null) -} - - -;(function () { - var methods = { - 'readDoubleBE' : 8 - , 'readDoubleLE' : 8 - , 'readFloatBE' : 4 - , 'readFloatLE' : 4 - , 'readInt32BE' : 4 - , 'readInt32LE' : 4 - , 'readUInt32BE' : 4 - , 'readUInt32LE' : 4 - , 'readInt16BE' : 2 - , 'readInt16LE' : 2 - , 'readUInt16BE' : 2 - , 'readUInt16LE' : 2 - , 'readInt8' : 1 - , 'readUInt8' : 1 - } - - for (var m in methods) { - (function (m) { - BufferList.prototype[m] = function (offset) { - return this.slice(offset, offset + methods[m])[m](0) - } - }(m)) - } -}()) - - -module.exports = BufferList - -}).call(this,require("buffer").Buffer) -},{"buffer":185,"readable-stream/duplex":83,"util":298}],13:[function(require,module,exports){ -function Caseless (dict) { - this.dict = dict || {} -} -Caseless.prototype.set = function (name, value, clobber) { - if (typeof name === 'object') { - for (var i in name) { - this.set(i, name[i], value) - } - } else { - if (typeof clobber === 'undefined') clobber = true - var has = this.has(name) - - if (!clobber && has) this.dict[has] = this.dict[has] + ',' + value - else this.dict[has || name] = value - return has - } -} -Caseless.prototype.has = function (name) { - var keys = Object.keys(this.dict) - , name = name.toLowerCase() - ; - for (var i=0;i= len) ? hex : unstupid("0"+hex,len); -} - -exports.ECKey = function(curve, key, isPublic) -{ - var priv; - var c = curve(); - var n = c.getN(); - var bytes = Math.floor(n.bitLength()/8); - - if(key) - { - if(isPublic) - { - var curve = c.getCurve(); -// var x = key.slice(1,bytes+1); // skip the 04 for uncompressed format -// var y = key.slice(bytes+1); -// this.P = new ECPointFp(curve, -// curve.fromBigInteger(new BigInteger(x.toString("hex"), 16)), -// curve.fromBigInteger(new BigInteger(y.toString("hex"), 16))); - this.P = curve.decodePointHex(key.toString("hex")); - }else{ - if(key.length != bytes) return false; - priv = new BigInteger(key.toString("hex"), 16); - } - }else{ - var n1 = n.subtract(BigInteger.ONE); - var r = new BigInteger(crypto.randomBytes(n.bitLength())); - priv = r.mod(n1).add(BigInteger.ONE); - this.P = c.getG().multiply(priv); - } - if(this.P) - { -// var pubhex = unstupid(this.P.getX().toBigInteger().toString(16),bytes*2)+unstupid(this.P.getY().toBigInteger().toString(16),bytes*2); -// this.PublicKey = new Buffer("04"+pubhex,"hex"); - this.PublicKey = new Buffer(c.getCurve().encodeCompressedPointHex(this.P),"hex"); - } - if(priv) - { - this.PrivateKey = new Buffer(unstupid(priv.toString(16),bytes*2),"hex"); - this.deriveSharedSecret = function(key) - { - if(!key || !key.P) return false; - var S = key.P.multiply(priv); - return new Buffer(unstupid(S.getX().toBigInteger().toString(16),bytes*2),"hex"); - } - } -} - - -}).call(this,require("buffer").Buffer) -},{"./lib/ec.js":18,"./lib/sec.js":19,"buffer":185,"crypto":194,"jsbn":64}],18:[function(require,module,exports){ -// Basic Javascript Elliptic Curve implementation -// Ported loosely from BouncyCastle's Java EC code -// Only Fp curves implemented for now - -// Requires jsbn.js and jsbn2.js -var BigInteger = require('jsbn').BigInteger -var Barrett = BigInteger.prototype.Barrett - -// ---------------- -// ECFieldElementFp - -// constructor -function ECFieldElementFp(q,x) { - this.x = x; - // TODO if(x.compareTo(q) >= 0) error - this.q = q; -} - -function feFpEquals(other) { - if(other == this) return true; - return (this.q.equals(other.q) && this.x.equals(other.x)); -} - -function feFpToBigInteger() { - return this.x; -} - -function feFpNegate() { - return new ECFieldElementFp(this.q, this.x.negate().mod(this.q)); -} - -function feFpAdd(b) { - return new ECFieldElementFp(this.q, this.x.add(b.toBigInteger()).mod(this.q)); -} - -function feFpSubtract(b) { - return new ECFieldElementFp(this.q, this.x.subtract(b.toBigInteger()).mod(this.q)); -} - -function feFpMultiply(b) { - return new ECFieldElementFp(this.q, this.x.multiply(b.toBigInteger()).mod(this.q)); -} - -function feFpSquare() { - return new ECFieldElementFp(this.q, this.x.square().mod(this.q)); -} - -function feFpDivide(b) { - return new ECFieldElementFp(this.q, this.x.multiply(b.toBigInteger().modInverse(this.q)).mod(this.q)); -} - -ECFieldElementFp.prototype.equals = feFpEquals; -ECFieldElementFp.prototype.toBigInteger = feFpToBigInteger; -ECFieldElementFp.prototype.negate = feFpNegate; -ECFieldElementFp.prototype.add = feFpAdd; -ECFieldElementFp.prototype.subtract = feFpSubtract; -ECFieldElementFp.prototype.multiply = feFpMultiply; -ECFieldElementFp.prototype.square = feFpSquare; -ECFieldElementFp.prototype.divide = feFpDivide; - -// ---------------- -// ECPointFp - -// constructor -function ECPointFp(curve,x,y,z) { - this.curve = curve; - this.x = x; - this.y = y; - // Projective coordinates: either zinv == null or z * zinv == 1 - // z and zinv are just BigIntegers, not fieldElements - if(z == null) { - this.z = BigInteger.ONE; - } - else { - this.z = z; - } - this.zinv = null; - //TODO: compression flag -} - -function pointFpGetX() { - if(this.zinv == null) { - this.zinv = this.z.modInverse(this.curve.q); - } - var r = this.x.toBigInteger().multiply(this.zinv); - this.curve.reduce(r); - return this.curve.fromBigInteger(r); -} - -function pointFpGetY() { - if(this.zinv == null) { - this.zinv = this.z.modInverse(this.curve.q); - } - var r = this.y.toBigInteger().multiply(this.zinv); - this.curve.reduce(r); - return this.curve.fromBigInteger(r); -} - -function pointFpEquals(other) { - if(other == this) return true; - if(this.isInfinity()) return other.isInfinity(); - if(other.isInfinity()) return this.isInfinity(); - var u, v; - // u = Y2 * Z1 - Y1 * Z2 - u = other.y.toBigInteger().multiply(this.z).subtract(this.y.toBigInteger().multiply(other.z)).mod(this.curve.q); - if(!u.equals(BigInteger.ZERO)) return false; - // v = X2 * Z1 - X1 * Z2 - v = other.x.toBigInteger().multiply(this.z).subtract(this.x.toBigInteger().multiply(other.z)).mod(this.curve.q); - return v.equals(BigInteger.ZERO); -} - -function pointFpIsInfinity() { - if((this.x == null) && (this.y == null)) return true; - return this.z.equals(BigInteger.ZERO) && !this.y.toBigInteger().equals(BigInteger.ZERO); -} - -function pointFpNegate() { - return new ECPointFp(this.curve, this.x, this.y.negate(), this.z); -} - -function pointFpAdd(b) { - if(this.isInfinity()) return b; - if(b.isInfinity()) return this; - - // u = Y2 * Z1 - Y1 * Z2 - var u = b.y.toBigInteger().multiply(this.z).subtract(this.y.toBigInteger().multiply(b.z)).mod(this.curve.q); - // v = X2 * Z1 - X1 * Z2 - var v = b.x.toBigInteger().multiply(this.z).subtract(this.x.toBigInteger().multiply(b.z)).mod(this.curve.q); - - if(BigInteger.ZERO.equals(v)) { - if(BigInteger.ZERO.equals(u)) { - return this.twice(); // this == b, so double - } - return this.curve.getInfinity(); // this = -b, so infinity - } - - var THREE = new BigInteger("3"); - var x1 = this.x.toBigInteger(); - var y1 = this.y.toBigInteger(); - var x2 = b.x.toBigInteger(); - var y2 = b.y.toBigInteger(); - - var v2 = v.square(); - var v3 = v2.multiply(v); - var x1v2 = x1.multiply(v2); - var zu2 = u.square().multiply(this.z); - - // x3 = v * (z2 * (z1 * u^2 - 2 * x1 * v^2) - v^3) - var x3 = zu2.subtract(x1v2.shiftLeft(1)).multiply(b.z).subtract(v3).multiply(v).mod(this.curve.q); - // y3 = z2 * (3 * x1 * u * v^2 - y1 * v^3 - z1 * u^3) + u * v^3 - var y3 = x1v2.multiply(THREE).multiply(u).subtract(y1.multiply(v3)).subtract(zu2.multiply(u)).multiply(b.z).add(u.multiply(v3)).mod(this.curve.q); - // z3 = v^3 * z1 * z2 - var z3 = v3.multiply(this.z).multiply(b.z).mod(this.curve.q); - - return new ECPointFp(this.curve, this.curve.fromBigInteger(x3), this.curve.fromBigInteger(y3), z3); -} - -function pointFpTwice() { - if(this.isInfinity()) return this; - if(this.y.toBigInteger().signum() == 0) return this.curve.getInfinity(); - - // TODO: optimized handling of constants - var THREE = new BigInteger("3"); - var x1 = this.x.toBigInteger(); - var y1 = this.y.toBigInteger(); - - var y1z1 = y1.multiply(this.z); - var y1sqz1 = y1z1.multiply(y1).mod(this.curve.q); - var a = this.curve.a.toBigInteger(); - - // w = 3 * x1^2 + a * z1^2 - var w = x1.square().multiply(THREE); - if(!BigInteger.ZERO.equals(a)) { - w = w.add(this.z.square().multiply(a)); - } - w = w.mod(this.curve.q); - //this.curve.reduce(w); - // x3 = 2 * y1 * z1 * (w^2 - 8 * x1 * y1^2 * z1) - var x3 = w.square().subtract(x1.shiftLeft(3).multiply(y1sqz1)).shiftLeft(1).multiply(y1z1).mod(this.curve.q); - // y3 = 4 * y1^2 * z1 * (3 * w * x1 - 2 * y1^2 * z1) - w^3 - var y3 = w.multiply(THREE).multiply(x1).subtract(y1sqz1.shiftLeft(1)).shiftLeft(2).multiply(y1sqz1).subtract(w.square().multiply(w)).mod(this.curve.q); - // z3 = 8 * (y1 * z1)^3 - var z3 = y1z1.square().multiply(y1z1).shiftLeft(3).mod(this.curve.q); - - return new ECPointFp(this.curve, this.curve.fromBigInteger(x3), this.curve.fromBigInteger(y3), z3); -} - -// Simple NAF (Non-Adjacent Form) multiplication algorithm -// TODO: modularize the multiplication algorithm -function pointFpMultiply(k) { - if(this.isInfinity()) return this; - if(k.signum() == 0) return this.curve.getInfinity(); - - var e = k; - var h = e.multiply(new BigInteger("3")); - - var neg = this.negate(); - var R = this; - - var i; - for(i = h.bitLength() - 2; i > 0; --i) { - R = R.twice(); - - var hBit = h.testBit(i); - var eBit = e.testBit(i); - - if (hBit != eBit) { - R = R.add(hBit ? this : neg); - } - } - - return R; -} - -// Compute this*j + x*k (simultaneous multiplication) -function pointFpMultiplyTwo(j,x,k) { - var i; - if(j.bitLength() > k.bitLength()) - i = j.bitLength() - 1; - else - i = k.bitLength() - 1; - - var R = this.curve.getInfinity(); - var both = this.add(x); - while(i >= 0) { - R = R.twice(); - if(j.testBit(i)) { - if(k.testBit(i)) { - R = R.add(both); - } - else { - R = R.add(this); - } - } - else { - if(k.testBit(i)) { - R = R.add(x); - } - } - --i; - } - - return R; -} - -ECPointFp.prototype.getX = pointFpGetX; -ECPointFp.prototype.getY = pointFpGetY; -ECPointFp.prototype.equals = pointFpEquals; -ECPointFp.prototype.isInfinity = pointFpIsInfinity; -ECPointFp.prototype.negate = pointFpNegate; -ECPointFp.prototype.add = pointFpAdd; -ECPointFp.prototype.twice = pointFpTwice; -ECPointFp.prototype.multiply = pointFpMultiply; -ECPointFp.prototype.multiplyTwo = pointFpMultiplyTwo; - -// ---------------- -// ECCurveFp - -// constructor -function ECCurveFp(q,a,b) { - this.q = q; - this.a = this.fromBigInteger(a); - this.b = this.fromBigInteger(b); - this.infinity = new ECPointFp(this, null, null); - this.reducer = new Barrett(this.q); -} - -function curveFpGetQ() { - return this.q; -} - -function curveFpGetA() { - return this.a; -} - -function curveFpGetB() { - return this.b; -} - -function curveFpEquals(other) { - if(other == this) return true; - return(this.q.equals(other.q) && this.a.equals(other.a) && this.b.equals(other.b)); -} - -function curveFpGetInfinity() { - return this.infinity; -} - -function curveFpFromBigInteger(x) { - return new ECFieldElementFp(this.q, x); -} - -function curveReduce(x) { - this.reducer.reduce(x); -} - -// for now, work with hex strings because they're easier in JS -function curveFpDecodePointHex(s) { - switch(parseInt(s.substr(0,2), 16)) { // first byte - case 0: - return this.infinity; - case 2: - case 3: - // point compression not supported yet - return null; - case 4: - case 6: - case 7: - var len = (s.length - 2) / 2; - var xHex = s.substr(2, len); - var yHex = s.substr(len+2, len); - - return new ECPointFp(this, - this.fromBigInteger(new BigInteger(xHex, 16)), - this.fromBigInteger(new BigInteger(yHex, 16))); - - default: // unsupported - return null; - } -} - -function curveFpEncodePointHex(p) { - if (p.isInfinity()) return "00"; - var xHex = p.getX().toBigInteger().toString(16); - var yHex = p.getY().toBigInteger().toString(16); - var oLen = this.getQ().toString(16).length; - if ((oLen % 2) != 0) oLen++; - while (xHex.length < oLen) { - xHex = "0" + xHex; - } - while (yHex.length < oLen) { - yHex = "0" + yHex; - } - return "04" + xHex + yHex; -} - -ECCurveFp.prototype.getQ = curveFpGetQ; -ECCurveFp.prototype.getA = curveFpGetA; -ECCurveFp.prototype.getB = curveFpGetB; -ECCurveFp.prototype.equals = curveFpEquals; -ECCurveFp.prototype.getInfinity = curveFpGetInfinity; -ECCurveFp.prototype.fromBigInteger = curveFpFromBigInteger; -ECCurveFp.prototype.reduce = curveReduce; -//ECCurveFp.prototype.decodePointHex = curveFpDecodePointHex; -ECCurveFp.prototype.encodePointHex = curveFpEncodePointHex; - -// from: https://github.com/kaielvin/jsbn-ec-point-compression -ECCurveFp.prototype.decodePointHex = function(s) -{ - var yIsEven; - switch(parseInt(s.substr(0,2), 16)) { // first byte - case 0: - return this.infinity; - case 2: - yIsEven = false; - case 3: - if(yIsEven == undefined) yIsEven = true; - var len = s.length - 2; - var xHex = s.substr(2, len); - var x = this.fromBigInteger(new BigInteger(xHex,16)); - var alpha = x.multiply(x.square().add(this.getA())).add(this.getB()); - var beta = alpha.sqrt(); - - if (beta == null) throw "Invalid point compression"; - - var betaValue = beta.toBigInteger(); - if (betaValue.testBit(0) != yIsEven) - { - // Use the other root - beta = this.fromBigInteger(this.getQ().subtract(betaValue)); - } - return new ECPointFp(this,x,beta); - case 4: - case 6: - case 7: - var len = (s.length - 2) / 2; - var xHex = s.substr(2, len); - var yHex = s.substr(len+2, len); - - return new ECPointFp(this, - this.fromBigInteger(new BigInteger(xHex, 16)), - this.fromBigInteger(new BigInteger(yHex, 16))); - - default: // unsupported - return null; - } -} -ECCurveFp.prototype.encodeCompressedPointHex = function(p) -{ - if (p.isInfinity()) return "00"; - var xHex = p.getX().toBigInteger().toString(16); - var oLen = this.getQ().toString(16).length; - if ((oLen % 2) != 0) oLen++; - while (xHex.length < oLen) - xHex = "0" + xHex; - var yPrefix; - if(p.getY().toBigInteger().isEven()) yPrefix = "02"; - else yPrefix = "03"; - - return yPrefix + xHex; -} - - -ECFieldElementFp.prototype.getR = function() -{ - if(this.r != undefined) return this.r; - - this.r = null; - var bitLength = this.q.bitLength(); - if (bitLength > 128) - { - var firstWord = this.q.shiftRight(bitLength - 64); - if (firstWord.intValue() == -1) - { - this.r = BigInteger.ONE.shiftLeft(bitLength).subtract(this.q); - } - } - return this.r; -} -ECFieldElementFp.prototype.modMult = function(x1,x2) -{ - return this.modReduce(x1.multiply(x2)); -} -ECFieldElementFp.prototype.modReduce = function(x) -{ - if (this.getR() != null) - { - var qLen = q.bitLength(); - while (x.bitLength() > (qLen + 1)) - { - var u = x.shiftRight(qLen); - var v = x.subtract(u.shiftLeft(qLen)); - if (!this.getR().equals(BigInteger.ONE)) - { - u = u.multiply(this.getR()); - } - x = u.add(v); - } - while (x.compareTo(q) >= 0) - { - x = x.subtract(q); - } - } - else - { - x = x.mod(q); - } - return x; -} -ECFieldElementFp.prototype.sqrt = function() -{ - if (!this.q.testBit(0)) throw "unsupported"; - - // p mod 4 == 3 - if (this.q.testBit(1)) - { - var z = new ECFieldElementFp(this.q,this.x.modPow(this.q.shiftRight(2).add(BigInteger.ONE),this.q)); - return z.square().equals(this) ? z : null; - } - - // p mod 4 == 1 - var qMinusOne = this.q.subtract(BigInteger.ONE); - - var legendreExponent = qMinusOne.shiftRight(1); - if (!(this.x.modPow(legendreExponent, this.q).equals(BigInteger.ONE))) - { - return null; - } - - var u = qMinusOne.shiftRight(2); - var k = u.shiftLeft(1).add(BigInteger.ONE); - - var Q = this.x; - var fourQ = modDouble(modDouble(Q)); - - var U, V; - do - { - var P; - do - { - P = new BigInteger(this.q.bitLength(), new SecureRandom()); - } - while (P.compareTo(this.q) >= 0 - || !(P.multiply(P).subtract(fourQ).modPow(legendreExponent, this.q).equals(qMinusOne))); - - var result = this.lucasSequence(P, Q, k); - U = result[0]; - V = result[1]; - - if (this.modMult(V, V).equals(fourQ)) - { - // Integer division by 2, mod q - if (V.testBit(0)) - { - V = V.add(q); - } - - V = V.shiftRight(1); - - return new ECFieldElementFp(q,V); - } - } - while (U.equals(BigInteger.ONE) || U.equals(qMinusOne)); - - return null; -} -ECFieldElementFp.prototype.lucasSequence = function(P,Q,k) -{ - var n = k.bitLength(); - var s = k.getLowestSetBit(); - - var Uh = BigInteger.ONE; - var Vl = BigInteger.TWO; - var Vh = P; - var Ql = BigInteger.ONE; - var Qh = BigInteger.ONE; - - for (var j = n - 1; j >= s + 1; --j) - { - Ql = this.modMult(Ql, Qh); - - if (k.testBit(j)) - { - Qh = this.modMult(Ql, Q); - Uh = this.modMult(Uh, Vh); - Vl = this.modReduce(Vh.multiply(Vl).subtract(P.multiply(Ql))); - Vh = this.modReduce(Vh.multiply(Vh).subtract(Qh.shiftLeft(1))); - } - else - { - Qh = Ql; - Uh = this.modReduce(Uh.multiply(Vl).subtract(Ql)); - Vh = this.modReduce(Vh.multiply(Vl).subtract(P.multiply(Ql))); - Vl = this.modReduce(Vl.multiply(Vl).subtract(Ql.shiftLeft(1))); - } - } - - Ql = this.modMult(Ql, Qh); - Qh = this.modMult(Ql, Q); - Uh = this.modReduce(Uh.multiply(Vl).subtract(Ql)); - Vl = this.modReduce(Vh.multiply(Vl).subtract(P.multiply(Ql))); - Ql = this.modMult(Ql, Qh); - - for (var j = 1; j <= s; ++j) - { - Uh = this.modMult(Uh, Vl); - Vl = this.modReduce(Vl.multiply(Vl).subtract(Ql.shiftLeft(1))); - Ql = this.modMult(Ql, Ql); - } - - return [ Uh, Vl ]; -} - -var exports = { - ECCurveFp: ECCurveFp, - ECPointFp: ECPointFp, - ECFieldElementFp: ECFieldElementFp -} - -module.exports = exports - -},{"jsbn":64}],19:[function(require,module,exports){ -// Named EC curves - -// Requires ec.js, jsbn.js, and jsbn2.js -var BigInteger = require('jsbn').BigInteger -var ECCurveFp = require('./ec.js').ECCurveFp - - -// ---------------- -// X9ECParameters - -// constructor -function X9ECParameters(curve,g,n,h) { - this.curve = curve; - this.g = g; - this.n = n; - this.h = h; -} - -function x9getCurve() { - return this.curve; -} - -function x9getG() { - return this.g; -} - -function x9getN() { - return this.n; -} - -function x9getH() { - return this.h; -} - -X9ECParameters.prototype.getCurve = x9getCurve; -X9ECParameters.prototype.getG = x9getG; -X9ECParameters.prototype.getN = x9getN; -X9ECParameters.prototype.getH = x9getH; - -// ---------------- -// SECNamedCurves - -function fromHex(s) { return new BigInteger(s, 16); } - -function secp128r1() { - // p = 2^128 - 2^97 - 1 - var p = fromHex("FFFFFFFDFFFFFFFFFFFFFFFFFFFFFFFF"); - var a = fromHex("FFFFFFFDFFFFFFFFFFFFFFFFFFFFFFFC"); - var b = fromHex("E87579C11079F43DD824993C2CEE5ED3"); - //byte[] S = Hex.decode("000E0D4D696E6768756151750CC03A4473D03679"); - var n = fromHex("FFFFFFFE0000000075A30D1B9038A115"); - var h = BigInteger.ONE; - var curve = new ECCurveFp(p, a, b); - var G = curve.decodePointHex("04" - + "161FF7528B899B2D0C28607CA52C5B86" - + "CF5AC8395BAFEB13C02DA292DDED7A83"); - return new X9ECParameters(curve, G, n, h); -} - -function secp160k1() { - // p = 2^160 - 2^32 - 2^14 - 2^12 - 2^9 - 2^8 - 2^7 - 2^3 - 2^2 - 1 - var p = fromHex("FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFEFFFFAC73"); - var a = BigInteger.ZERO; - var b = fromHex("7"); - //byte[] S = null; - var n = fromHex("0100000000000000000001B8FA16DFAB9ACA16B6B3"); - var h = BigInteger.ONE; - var curve = new ECCurveFp(p, a, b); - var G = curve.decodePointHex("04" - + "3B4C382CE37AA192A4019E763036F4F5DD4D7EBB" - + "938CF935318FDCED6BC28286531733C3F03C4FEE"); - return new X9ECParameters(curve, G, n, h); -} - -function secp160r1() { - // p = 2^160 - 2^31 - 1 - var p = fromHex("FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF7FFFFFFF"); - var a = fromHex("FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF7FFFFFFC"); - var b = fromHex("1C97BEFC54BD7A8B65ACF89F81D4D4ADC565FA45"); - //byte[] S = Hex.decode("1053CDE42C14D696E67687561517533BF3F83345"); - var n = fromHex("0100000000000000000001F4C8F927AED3CA752257"); - var h = BigInteger.ONE; - var curve = new ECCurveFp(p, a, b); - var G = curve.decodePointHex("04" - + "4A96B5688EF573284664698968C38BB913CBFC82" - + "23A628553168947D59DCC912042351377AC5FB32"); - return new X9ECParameters(curve, G, n, h); -} - -function secp192k1() { - // p = 2^192 - 2^32 - 2^12 - 2^8 - 2^7 - 2^6 - 2^3 - 1 - var p = fromHex("FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFEFFFFEE37"); - var a = BigInteger.ZERO; - var b = fromHex("3"); - //byte[] S = null; - var n = fromHex("FFFFFFFFFFFFFFFFFFFFFFFE26F2FC170F69466A74DEFD8D"); - var h = BigInteger.ONE; - var curve = new ECCurveFp(p, a, b); - var G = curve.decodePointHex("04" - + "DB4FF10EC057E9AE26B07D0280B7F4341DA5D1B1EAE06C7D" - + "9B2F2F6D9C5628A7844163D015BE86344082AA88D95E2F9D"); - return new X9ECParameters(curve, G, n, h); -} - -function secp192r1() { - // p = 2^192 - 2^64 - 1 - var p = fromHex("FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFEFFFFFFFFFFFFFFFF"); - var a = fromHex("FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFEFFFFFFFFFFFFFFFC"); - var b = fromHex("64210519E59C80E70FA7E9AB72243049FEB8DEECC146B9B1"); - //byte[] S = Hex.decode("3045AE6FC8422F64ED579528D38120EAE12196D5"); - var n = fromHex("FFFFFFFFFFFFFFFFFFFFFFFF99DEF836146BC9B1B4D22831"); - var h = BigInteger.ONE; - var curve = new ECCurveFp(p, a, b); - var G = curve.decodePointHex("04" - + "188DA80EB03090F67CBF20EB43A18800F4FF0AFD82FF1012" - + "07192B95FFC8DA78631011ED6B24CDD573F977A11E794811"); - return new X9ECParameters(curve, G, n, h); -} - -function secp224r1() { - // p = 2^224 - 2^96 + 1 - var p = fromHex("FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF000000000000000000000001"); - var a = fromHex("FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFEFFFFFFFFFFFFFFFFFFFFFFFE"); - var b = fromHex("B4050A850C04B3ABF54132565044B0B7D7BFD8BA270B39432355FFB4"); - //byte[] S = Hex.decode("BD71344799D5C7FCDC45B59FA3B9AB8F6A948BC5"); - var n = fromHex("FFFFFFFFFFFFFFFFFFFFFFFFFFFF16A2E0B8F03E13DD29455C5C2A3D"); - var h = BigInteger.ONE; - var curve = new ECCurveFp(p, a, b); - var G = curve.decodePointHex("04" - + "B70E0CBD6BB4BF7F321390B94A03C1D356C21122343280D6115C1D21" - + "BD376388B5F723FB4C22DFE6CD4375A05A07476444D5819985007E34"); - return new X9ECParameters(curve, G, n, h); -} - -function secp256r1() { - // p = 2^224 (2^32 - 1) + 2^192 + 2^96 - 1 - var p = fromHex("FFFFFFFF00000001000000000000000000000000FFFFFFFFFFFFFFFFFFFFFFFF"); - var a = fromHex("FFFFFFFF00000001000000000000000000000000FFFFFFFFFFFFFFFFFFFFFFFC"); - var b = fromHex("5AC635D8AA3A93E7B3EBBD55769886BC651D06B0CC53B0F63BCE3C3E27D2604B"); - //byte[] S = Hex.decode("C49D360886E704936A6678E1139D26B7819F7E90"); - var n = fromHex("FFFFFFFF00000000FFFFFFFFFFFFFFFFBCE6FAADA7179E84F3B9CAC2FC632551"); - var h = BigInteger.ONE; - var curve = new ECCurveFp(p, a, b); - var G = curve.decodePointHex("04" - + "6B17D1F2E12C4247F8BCE6E563A440F277037D812DEB33A0F4A13945D898C296" - + "4FE342E2FE1A7F9B8EE7EB4A7C0F9E162BCE33576B315ECECBB6406837BF51F5"); - return new X9ECParameters(curve, G, n, h); -} - -// TODO: make this into a proper hashtable -function getSECCurveByName(name) { - if(name == "secp128r1") return secp128r1(); - if(name == "secp160k1") return secp160k1(); - if(name == "secp160r1") return secp160r1(); - if(name == "secp192k1") return secp192k1(); - if(name == "secp192r1") return secp192r1(); - if(name == "secp224r1") return secp224r1(); - if(name == "secp256r1") return secp256r1(); - return null; -} - -module.exports = { - "secp128r1":secp128r1, - "secp160k1":secp160k1, - "secp160r1":secp160r1, - "secp192k1":secp192k1, - "secp192r1":secp192r1, - "secp224r1":secp224r1, - "secp256r1":secp256r1 -} - -},{"./ec.js":18,"jsbn":64}],20:[function(require,module,exports){ -'use strict'; - -var hasOwn = Object.prototype.hasOwnProperty; -var toStr = Object.prototype.toString; - -var isArray = function isArray(arr) { - if (typeof Array.isArray === 'function') { - return Array.isArray(arr); - } - - return toStr.call(arr) === '[object Array]'; -}; - -var isPlainObject = function isPlainObject(obj) { - if (!obj || toStr.call(obj) !== '[object Object]') { - return false; - } - - var hasOwnConstructor = hasOwn.call(obj, 'constructor'); - var hasIsPrototypeOf = obj.constructor && obj.constructor.prototype && hasOwn.call(obj.constructor.prototype, 'isPrototypeOf'); - // Not own constructor property must be Object - if (obj.constructor && !hasOwnConstructor && !hasIsPrototypeOf) { - return false; - } - - // Own properties are enumerated firstly, so to speed up, - // if last one is own, then all properties are own. - var key; - for (key in obj) {/**/} - - return typeof key === 'undefined' || hasOwn.call(obj, key); -}; - -module.exports = function extend() { - var options, name, src, copy, copyIsArray, clone, - target = arguments[0], - i = 1, - length = arguments.length, - deep = false; - - // Handle a deep copy situation - if (typeof target === 'boolean') { - deep = target; - target = arguments[1] || {}; - // skip the boolean and the target - i = 2; - } else if ((typeof target !== 'object' && typeof target !== 'function') || target == null) { - target = {}; - } - - for (; i < length; ++i) { - options = arguments[i]; - // Only deal with non-null/undefined values - if (options != null) { - // Extend the base object - for (name in options) { - src = target[name]; - copy = options[name]; - - // Prevent never-ending loop - if (target !== copy) { - // Recurse if we're merging plain objects or arrays - if (deep && copy && (isPlainObject(copy) || (copyIsArray = isArray(copy)))) { - if (copyIsArray) { - copyIsArray = false; - clone = src && isArray(src) ? src : []; - } else { - clone = src && isPlainObject(src) ? src : {}; - } - - // Never move original objects, clone them - target[name] = extend(deep, clone, copy); - - // Don't bring in undefined values - } else if (typeof copy !== 'undefined') { - target[name] = copy; - } - } - } - } - } - - // Return the modified object - return target; -}; - - -},{}],21:[function(require,module,exports){ -/* - * extsprintf.js: extended POSIX-style sprintf - */ - -var mod_assert = require('assert'); -var mod_util = require('util'); - -/* - * Public interface - */ -exports.sprintf = jsSprintf; - -/* - * Stripped down version of s[n]printf(3c). We make a best effort to throw an - * exception when given a format string we don't understand, rather than - * ignoring it, so that we won't break existing programs if/when we go implement - * the rest of this. - * - * This implementation currently supports specifying - * - field alignment ('-' flag), - * - zero-pad ('0' flag) - * - always show numeric sign ('+' flag), - * - field width - * - conversions for strings, decimal integers, and floats (numbers). - * - argument size specifiers. These are all accepted but ignored, since - * Javascript has no notion of the physical size of an argument. - * - * Everything else is currently unsupported, most notably precision, unsigned - * numbers, non-decimal numbers, and characters. - */ -function jsSprintf(fmt) -{ - var regex = [ - '([^%]*)', /* normal text */ - '%', /* start of format */ - '([\'\\-+ #0]*?)', /* flags (optional) */ - '([1-9]\\d*)?', /* width (optional) */ - '(\\.([1-9]\\d*))?', /* precision (optional) */ - '[lhjztL]*?', /* length mods (ignored) */ - '([diouxXfFeEgGaAcCsSp%jr])' /* conversion */ - ].join(''); - - var re = new RegExp(regex); - var args = Array.prototype.slice.call(arguments, 1); - var flags, width, precision, conversion; - var left, pad, sign, arg, match; - var ret = ''; - var argn = 1; - - mod_assert.equal('string', typeof (fmt)); - - while ((match = re.exec(fmt)) !== null) { - ret += match[1]; - fmt = fmt.substring(match[0].length); - - flags = match[2] || ''; - width = match[3] || 0; - precision = match[4] || ''; - conversion = match[6]; - left = false; - sign = false; - pad = ' '; - - if (conversion == '%') { - ret += '%'; - continue; - } - - if (args.length === 0) - throw (new Error('too few args to sprintf')); - - arg = args.shift(); - argn++; - - if (flags.match(/[\' #]/)) - throw (new Error( - 'unsupported flags: ' + flags)); - - if (precision.length > 0) - throw (new Error( - 'non-zero precision not supported')); - - if (flags.match(/-/)) - left = true; - - if (flags.match(/0/)) - pad = '0'; - - if (flags.match(/\+/)) - sign = true; - - switch (conversion) { - case 's': - if (arg === undefined || arg === null) - throw (new Error('argument ' + argn + - ': attempted to print undefined or null ' + - 'as a string')); - ret += doPad(pad, width, left, arg.toString()); - break; - - case 'd': - arg = Math.floor(arg); - /*jsl:fallthru*/ - case 'f': - sign = sign && arg > 0 ? '+' : ''; - ret += sign + doPad(pad, width, left, - arg.toString()); - break; - - case 'j': /* non-standard */ - if (width === 0) - width = 10; - ret += mod_util.inspect(arg, false, width); - break; - - case 'r': /* non-standard */ - ret += dumpException(arg); - break; - - default: - throw (new Error('unsupported conversion: ' + - conversion)); - } - } - - ret += fmt; - return (ret); -} - -function doPad(chr, width, left, str) -{ - var ret = str; - - while (ret.length < width) { - if (left) - ret += chr; - else - ret = chr + ret; - } - - return (ret); -} - -/* - * This function dumps long stack traces for exceptions having a cause() method. - * See node-verror for an example. - */ -function dumpException(ex) -{ - var ret; - - if (!(ex instanceof Error)) - throw (new Error(jsSprintf('invalid type for %%r: %j', ex))); - - /* Note that V8 prepends "ex.stack" with ex.toString(). */ - ret = 'EXCEPTION: ' + ex.constructor.name + ': ' + ex.stack; - - if (ex.cause && typeof (ex.cause) === 'function') { - var cex = ex.cause(); - if (cex) { - ret += '\nCaused by: ' + dumpException(cex); - } - } - - return (ret); -} - -},{"assert":151,"util":298}],22:[function(require,module,exports){ -module.exports = ForeverAgent -ForeverAgent.SSL = ForeverAgentSSL - -var util = require('util') - , Agent = require('http').Agent - , net = require('net') - , tls = require('tls') - , AgentSSL = require('https').Agent - -function getConnectionName(host, port) { - var name = '' - if (typeof host === 'string') { - name = host + ':' + port - } else { - // For node.js v012.0 and iojs-v1.5.1, host is an object. And any existing localAddress is part of the connection name. - name = host.host + ':' + host.port + ':' + (host.localAddress ? (host.localAddress + ':') : ':') - } - return name -} - -function ForeverAgent(options) { - var self = this - self.options = options || {} - self.requests = {} - self.sockets = {} - self.freeSockets = {} - self.maxSockets = self.options.maxSockets || Agent.defaultMaxSockets - self.minSockets = self.options.minSockets || ForeverAgent.defaultMinSockets - self.on('free', function(socket, host, port) { - var name = getConnectionName(host, port) - - if (self.requests[name] && self.requests[name].length) { - self.requests[name].shift().onSocket(socket) - } else if (self.sockets[name].length < self.minSockets) { - if (!self.freeSockets[name]) self.freeSockets[name] = [] - self.freeSockets[name].push(socket) - - // if an error happens while we don't use the socket anyway, meh, throw the socket away - var onIdleError = function() { - socket.destroy() - } - socket._onIdleError = onIdleError - socket.on('error', onIdleError) - } else { - // If there are no pending requests just destroy the - // socket and it will get removed from the pool. This - // gets us out of timeout issues and allows us to - // default to Connection:keep-alive. - socket.destroy() - } - }) - -} -util.inherits(ForeverAgent, Agent) - -ForeverAgent.defaultMinSockets = 5 - - -ForeverAgent.prototype.createConnection = net.createConnection -ForeverAgent.prototype.addRequestNoreuse = Agent.prototype.addRequest -ForeverAgent.prototype.addRequest = function(req, host, port) { - var name = getConnectionName(host, port) - - if (typeof host !== 'string') { - var options = host - port = options.port - host = options.host - } - - if (this.freeSockets[name] && this.freeSockets[name].length > 0 && !req.useChunkedEncodingByDefault) { - var idleSocket = this.freeSockets[name].pop() - idleSocket.removeListener('error', idleSocket._onIdleError) - delete idleSocket._onIdleError - req._reusedSocket = true - req.onSocket(idleSocket) - } else { - this.addRequestNoreuse(req, host, port) - } -} - -ForeverAgent.prototype.removeSocket = function(s, name, host, port) { - if (this.sockets[name]) { - var index = this.sockets[name].indexOf(s) - if (index !== -1) { - this.sockets[name].splice(index, 1) - } - } else if (this.sockets[name] && this.sockets[name].length === 0) { - // don't leak - delete this.sockets[name] - delete this.requests[name] - } - - if (this.freeSockets[name]) { - var index = this.freeSockets[name].indexOf(s) - if (index !== -1) { - this.freeSockets[name].splice(index, 1) - if (this.freeSockets[name].length === 0) { - delete this.freeSockets[name] - } - } - } - - if (this.requests[name] && this.requests[name].length) { - // If we have pending requests and a socket gets closed a new one - // needs to be created to take over in the pool for the one that closed. - this.createSocket(name, host, port).emit('free') - } -} - -function ForeverAgentSSL (options) { - ForeverAgent.call(this, options) -} -util.inherits(ForeverAgentSSL, ForeverAgent) - -ForeverAgentSSL.prototype.createConnection = createConnectionSSL -ForeverAgentSSL.prototype.addRequestNoreuse = AgentSSL.prototype.addRequest - -function createConnectionSSL (port, host, options) { - if (typeof port === 'object') { - options = port; - } else if (typeof host === 'object') { - options = host; - } else if (typeof options === 'object') { - options = options; - } else { - options = {}; - } - - if (typeof port === 'number') { - options.port = port; - } - - if (typeof host === 'string') { - options.host = host; - } - - return tls.connect(options); -} - -},{"http":288,"https":230,"net":182,"tls":182,"util":298}],23:[function(require,module,exports){ -/* eslint-env browser */ -module.exports = FormData; - -},{}],24:[function(require,module,exports){ -var util = require('util') - -var INDENT_START = /[\{\[]/ -var INDENT_END = /[\}\]]/ - -module.exports = function() { - var lines = [] - var indent = 0 - - var push = function(str) { - var spaces = '' - while (spaces.length < indent*2) spaces += ' ' - lines.push(spaces+str) - } - - var line = function(fmt) { - if (!fmt) return line - - if (INDENT_END.test(fmt.trim()[0]) && INDENT_START.test(fmt[fmt.length-1])) { - indent-- - push(util.format.apply(util, arguments)) - indent++ - return line - } - if (INDENT_START.test(fmt[fmt.length-1])) { - push(util.format.apply(util, arguments)) - indent++ - return line - } - if (INDENT_END.test(fmt.trim()[0])) { - indent-- - push(util.format.apply(util, arguments)) - return line - } - - push(util.format.apply(util, arguments)) - return line - } - - line.toString = function() { - return lines.join('\n') - } - - line.toFunction = function(scope) { - var src = 'return ('+line.toString()+')' - - var keys = Object.keys(scope || {}).map(function(key) { - return key - }) - - var vals = keys.map(function(key) { - return scope[key] - }) - - return Function.apply(null, keys.concat(src)).apply(null, vals) - } - - if (arguments.length) line.apply(null, arguments) - - return line -} - -},{"util":298}],25:[function(require,module,exports){ -var isProperty = require('is-property') - -var gen = function(obj, prop) { - return isProperty(prop) ? obj+'.'+prop : obj+'['+JSON.stringify(prop)+']' -} - -gen.valid = isProperty -gen.property = function (prop) { - return isProperty(prop) ? prop : JSON.stringify(prop) -} - -module.exports = gen - -},{"is-property":54}],26:[function(require,module,exports){ -'use strict' - -function ValidationError (errors) { - this.name = 'ValidationError' - this.errors = errors -} - -ValidationError.prototype = Error.prototype - -module.exports = ValidationError - -},{}],27:[function(require,module,exports){ -'use strict' - -var Promise = require('pinkie-promise') -var runner = require('./runner') -var schemas = require('./schemas') - -var promisify = function (schema) { - return function (data) { - return new Promise(function (resolve, reject) { - runner(schema, data, function (err, valid) { - return err === null ? resolve(data) : reject(err) - }) - }) - } -} - -module.exports = promisify(schemas.har) - -// utility methods for all parts of the schema -Object.keys(schemas).map(function (name) { - module.exports[name] = promisify(schemas[name]) -}) - -},{"./runner":28,"./schemas":36,"pinkie-promise":76}],28:[function(require,module,exports){ -'use strict' - -var schemas = require('./schemas') -var ValidationError = require('./error') -var validator = require('is-my-json-valid') - -module.exports = function (schema, data, cb) { - // default value - var valid = false - - // validator config - var validate = validator(schema, { - greedy: true, - verbose: true, - schemas: schemas - }) - - // execute is-my-json-valid - if (data !== undefined) { - valid = validate(data) - } - - // callback? - if (typeof cb === 'function') { - return cb(validate.errors ? new ValidationError(validate.errors) : null, valid) - } - - return valid -} - -},{"./error":26,"./schemas":36,"is-my-json-valid":53}],29:[function(require,module,exports){ -module.exports={ - "properties": { - "beforeRequest": { - "$ref": "#cacheEntry" - }, - "afterRequest": { - "$ref": "#cacheEntry" - }, - "comment": { - "type": "string" - } - } -} - -},{}],30:[function(require,module,exports){ -module.exports={ - "oneOf": [{ - "type": "object", - "optional": true, - "required": [ - "lastAccess", - "eTag", - "hitCount" - ], - "properties": { - "expires": { - "type": "string" - }, - "lastAccess": { - "type": "string" - }, - "eTag": { - "type": "string" - }, - "hitCount": { - "type": "integer" - }, - "comment": { - "type": "string" - } - } - }, { - "type": null, - "additionalProperties": false - }] -} - -},{}],31:[function(require,module,exports){ -module.exports={ - "type": "object", - "required": [ - "size", - "mimeType" - ], - "properties": { - "size": { - "type": "integer" - }, - "compression": { - "type": "integer" - }, - "mimeType": { - "type": "string" - }, - "text": { - "type": "string" - }, - "encoding": { - "type": "string" - }, - "comment": { - "type": "string" - } - } -} - -},{}],32:[function(require,module,exports){ -module.exports={ - "type": "object", - "required": [ - "name", - "value" - ], - "properties": { - "name": { - "type": "string" - }, - "value": { - "type": "string" - }, - "path": { - "type": "string" - }, - "domain": { - "type": "string" - }, - "expires": { - "type": ["string", "null"], - "format": "date-time" - }, - "httpOnly": { - "type": "boolean" - }, - "secure": { - "type": "boolean" - }, - "comment": { - "type": "string" - } - } -} - -},{}],33:[function(require,module,exports){ -module.exports={ - "type": "object", - "required": [ - "name", - "version" - ], - "properties": { - "name": { - "type": "string" - }, - "version": { - "type": "string" - }, - "comment": { - "type": "string" - } - } -} - -},{}],34:[function(require,module,exports){ -module.exports={ - "type": "object", - "optional": true, - "required": [ - "startedDateTime", - "time", - "request", - "response", - "cache", - "timings" - ], - "properties": { - "pageref": { - "type": "string" - }, - "startedDateTime": { - "type": "string", - "format": "date-time", - "pattern": "^(\\d{4})(-)?(\\d\\d)(-)?(\\d\\d)(T)?(\\d\\d)(:)?(\\d\\d)(:)?(\\d\\d)(\\.\\d+)?(Z|([+-])(\\d\\d)(:)?(\\d\\d))" - }, - "time": { - "type": "number", - "min": 0 - }, - "request": { - "$ref": "#request" - }, - "response": { - "$ref": "#response" - }, - "cache": { - "$ref": "#cache" - }, - "timings": { - "$ref": "#timings" - }, - "serverIPAddress": { - "type": "string", - "oneOf": [ - { "format": "ipv4" }, - { "format": "ipv6" } - ] - }, - "connection": { - "type": "string" - }, - "comment": { - "type": "string" - } - } -} - -},{}],35:[function(require,module,exports){ -module.exports={ - "type": "object", - "required": [ - "log" - ], - "properties": { - "log": { - "$ref": "#log" - } - } -} - -},{}],36:[function(require,module,exports){ -'use strict' - -var schemas = { - cache: require('./cache.json'), - cacheEntry: require('./cacheEntry.json'), - content: require('./content.json'), - cookie: require('./cookie.json'), - creator: require('./creator.json'), - entry: require('./entry.json'), - har: require('./har.json'), - log: require('./log.json'), - page: require('./page.json'), - pageTimings: require('./pageTimings.json'), - postData: require('./postData.json'), - record: require('./record.json'), - request: require('./request.json'), - response: require('./response.json'), - timings: require('./timings.json') -} - -// is-my-json-valid does not provide meaningful error messages for external schemas -// this is a workaround -schemas.cache.properties.beforeRequest = schemas.cacheEntry -schemas.cache.properties.afterRequest = schemas.cacheEntry - -schemas.page.properties.pageTimings = schemas.pageTimings - -schemas.request.properties.cookies.items = schemas.cookie -schemas.request.properties.headers.items = schemas.record -schemas.request.properties.queryString.items = schemas.record -schemas.request.properties.postData = schemas.postData - -schemas.response.properties.cookies.items = schemas.cookie -schemas.response.properties.headers.items = schemas.record -schemas.response.properties.content = schemas.content - -schemas.entry.properties.request = schemas.request -schemas.entry.properties.response = schemas.response -schemas.entry.properties.cache = schemas.cache -schemas.entry.properties.timings = schemas.timings - -schemas.log.properties.creator = schemas.creator -schemas.log.properties.browser = schemas.creator -schemas.log.properties.pages.items = schemas.page -schemas.log.properties.entries.items = schemas.entry - -schemas.har.properties.log = schemas.log - -module.exports = schemas - -},{"./cache.json":29,"./cacheEntry.json":30,"./content.json":31,"./cookie.json":32,"./creator.json":33,"./entry.json":34,"./har.json":35,"./log.json":37,"./page.json":38,"./pageTimings.json":39,"./postData.json":40,"./record.json":41,"./request.json":42,"./response.json":43,"./timings.json":44}],37:[function(require,module,exports){ -module.exports={ - "type": "object", - "required": [ - "version", - "creator", - "entries" - ], - "properties": { - "version": { - "type": "string" - }, - "creator": { - "$ref": "#creator" - }, - "browser": { - "$ref": "#creator" - }, - "pages": { - "type": "array", - "items": { - "$ref": "#page" - } - }, - "entries": { - "type": "array", - "items": { - "$ref": "#entry" - } - }, - "comment": { - "type": "string" - } - } -} - -},{}],38:[function(require,module,exports){ -module.exports={ - "type": "object", - "optional": true, - "required": [ - "startedDateTime", - "id", - "title", - "pageTimings" - ], - "properties": { - "startedDateTime": { - "type": "string", - "format": "date-time", - "pattern": "^(\\d{4})(-)?(\\d\\d)(-)?(\\d\\d)(T)?(\\d\\d)(:)?(\\d\\d)(:)?(\\d\\d)(\\.\\d+)?(Z|([+-])(\\d\\d)(:)?(\\d\\d))" - }, - "id": { - "type": "string", - "unique": true - }, - "title": { - "type": "string" - }, - "pageTimings": { - "$ref": "#pageTimings" - }, - "comment": { - "type": "string" - } - } -} - -},{}],39:[function(require,module,exports){ -module.exports={ - "type": "object", - "properties": { - "onContentLoad": { - "type": "number", - "min": -1 - }, - "onLoad": { - "type": "number", - "min": -1 - }, - "comment": { - "type": "string" - } - } -} - -},{}],40:[function(require,module,exports){ -module.exports={ - "type": "object", - "optional": true, - "required": [ - "mimeType" - ], - "properties": { - "mimeType": { - "type": "string" - }, - "text": { - "type": "string" - }, - "params": { - "type": "array", - "required": [ - "name" - ], - "properties": { - "name": { - "type": "string" - }, - "value": { - "type": "string" - }, - "fileName": { - "type": "string" - }, - "contentType": { - "type": "string" - }, - "comment": { - "type": "string" - } - } - }, - "comment": { - "type": "string" - } - } -} - -},{}],41:[function(require,module,exports){ -module.exports={ - "type": "object", - "required": [ - "name", - "value" - ], - "properties": { - "name": { - "type": "string" - }, - "value": { - "type": "string" - }, - "comment": { - "type": "string" - } - } -} - -},{}],42:[function(require,module,exports){ -module.exports={ - "type": "object", - "required": [ - "method", - "url", - "httpVersion", - "cookies", - "headers", - "queryString", - "headersSize", - "bodySize" - ], - "properties": { - "method": { - "type": "string" - }, - "url": { - "type": "string", - "format": "uri" - }, - "httpVersion": { - "type": "string" - }, - "cookies": { - "type": "array", - "items": { - "$ref": "#cookie" - } - }, - "headers": { - "type": "array", - "items": { - "$ref": "#record" - } - }, - "queryString": { - "type": "array", - "items": { - "$ref": "#record" - } - }, - "postData": { - "$ref": "#postData" - }, - "headersSize": { - "type": "integer" - }, - "bodySize": { - "type": "integer" - }, - "comment": { - "type": "string" - } - } -} - -},{}],43:[function(require,module,exports){ -module.exports={ - "type": "object", - "required": [ - "status", - "statusText", - "httpVersion", - "cookies", - "headers", - "content", - "redirectURL", - "headersSize", - "bodySize" - ], - "properties": { - "status": { - "type": "integer" - }, - "statusText": { - "type": "string" - }, - "httpVersion": { - "type": "string" - }, - "cookies": { - "type": "array", - "items": { - "$ref": "#cookie" - } - }, - "headers": { - "type": "array", - "items": { - "$ref": "#record" - } - }, - "content": { - "$ref": "#content" - }, - "redirectURL": { - "type": "string" - }, - "headersSize": { - "type": "integer" - }, - "bodySize": { - "type": "integer" - }, - "comment": { - "type": "string" - } - } -} - -},{}],44:[function(require,module,exports){ -module.exports={ - "required": [ - "send", - "wait", - "receive" - ], - "properties": { - "dns": { - "type": "number", - "min": -1 - }, - "connect": { - "type": "number", - "min": -1 - }, - "blocked": { - "type": "number", - "min": -1 - }, - "send": { - "type": "number", - "min": -1 - }, - "wait": { - "type": "number", - "min": -1 - }, - "receive": { - "type": "number", - "min": -1 - }, - "ssl": { - "type": "number", - "min": -1 - }, - "comment": { - "type": "string" - } - } -} - -},{}],45:[function(require,module,exports){ -/* - HTTP Hawk Authentication Scheme - Copyright (c) 2012-2014, Eran Hammer - BSD Licensed -*/ - - -// Declare namespace - -var hawk = { - internals: {} -}; - - -hawk.client = { - - // Generate an Authorization header for a given request - - /* - uri: 'http://example.com/resource?a=b' or object generated by hawk.utils.parseUri() - method: HTTP verb (e.g. 'GET', 'POST') - options: { - - // Required - - credentials: { - id: 'dh37fgj492je', - key: 'aoijedoaijsdlaksjdl', - algorithm: 'sha256' // 'sha1', 'sha256' - }, - - // Optional - - ext: 'application-specific', // Application specific data sent via the ext attribute - timestamp: Date.now() / 1000, // A pre-calculated timestamp in seconds - nonce: '2334f34f', // A pre-generated nonce - localtimeOffsetMsec: 400, // Time offset to sync with server time (ignored if timestamp provided) - payload: '{"some":"payload"}', // UTF-8 encoded string for body hash generation (ignored if hash provided) - contentType: 'application/json', // Payload content-type (ignored if hash provided) - hash: 'U4MKKSmiVxk37JCCrAVIjV=', // Pre-calculated payload hash - app: '24s23423f34dx', // Oz application id - dlg: '234sz34tww3sd' // Oz delegated-by application id - } - */ - - header: function (uri, method, options) { - - var result = { - field: '', - artifacts: {} - }; - - // Validate inputs - - if (!uri || (typeof uri !== 'string' && typeof uri !== 'object') || - !method || typeof method !== 'string' || - !options || typeof options !== 'object') { - - result.err = 'Invalid argument type'; - return result; - } - - // Application time - - var timestamp = options.timestamp || hawk.utils.now(options.localtimeOffsetMsec); - - // Validate credentials - - var credentials = options.credentials; - if (!credentials || - !credentials.id || - !credentials.key || - !credentials.algorithm) { - - result.err = 'Invalid credentials object'; - return result; - } - - if (hawk.crypto.algorithms.indexOf(credentials.algorithm) === -1) { - result.err = 'Unknown algorithm'; - return result; - } - - // Parse URI - - if (typeof uri === 'string') { - uri = hawk.utils.parseUri(uri); - } - - // Calculate signature - - var artifacts = { - ts: timestamp, - nonce: options.nonce || hawk.utils.randomString(6), - method: method, - resource: uri.resource, - host: uri.host, - port: uri.port, - hash: options.hash, - ext: options.ext, - app: options.app, - dlg: options.dlg - }; - - result.artifacts = artifacts; - - // Calculate payload hash - - if (!artifacts.hash && - (options.payload || options.payload === '')) { - - artifacts.hash = hawk.crypto.calculatePayloadHash(options.payload, credentials.algorithm, options.contentType); - } - - var mac = hawk.crypto.calculateMac('header', credentials, artifacts); - - // Construct header - - var hasExt = artifacts.ext !== null && artifacts.ext !== undefined && artifacts.ext !== ''; // Other falsey values allowed - var header = 'Hawk id="' + credentials.id + - '", ts="' + artifacts.ts + - '", nonce="' + artifacts.nonce + - (artifacts.hash ? '", hash="' + artifacts.hash : '') + - (hasExt ? '", ext="' + hawk.utils.escapeHeaderAttribute(artifacts.ext) : '') + - '", mac="' + mac + '"'; - - if (artifacts.app) { - header += ', app="' + artifacts.app + - (artifacts.dlg ? '", dlg="' + artifacts.dlg : '') + '"'; - } - - result.field = header; - - return result; - }, - - // Generate a bewit value for a given URI - - /* - uri: 'http://example.com/resource?a=b' - options: { - - // Required - - credentials: { - id: 'dh37fgj492je', - key: 'aoijedoaijsdlaksjdl', - algorithm: 'sha256' // 'sha1', 'sha256' - }, - ttlSec: 60 * 60, // TTL in seconds - - // Optional - - ext: 'application-specific', // Application specific data sent via the ext attribute - localtimeOffsetMsec: 400 // Time offset to sync with server time - }; - */ - - bewit: function (uri, options) { - - // Validate inputs - - if (!uri || - (typeof uri !== 'string') || - !options || - typeof options !== 'object' || - !options.ttlSec) { - - return ''; - } - - options.ext = (options.ext === null || options.ext === undefined ? '' : options.ext); // Zero is valid value - - // Application time - - var now = hawk.utils.now(options.localtimeOffsetMsec); - - // Validate credentials - - var credentials = options.credentials; - if (!credentials || - !credentials.id || - !credentials.key || - !credentials.algorithm) { - - return ''; - } - - if (hawk.crypto.algorithms.indexOf(credentials.algorithm) === -1) { - return ''; - } - - // Parse URI - - uri = hawk.utils.parseUri(uri); - - // Calculate signature - - var exp = now + options.ttlSec; - var mac = hawk.crypto.calculateMac('bewit', credentials, { - ts: exp, - nonce: '', - method: 'GET', - resource: uri.resource, // Maintain trailing '?' and query params - host: uri.host, - port: uri.port, - ext: options.ext - }); - - // Construct bewit: id\exp\mac\ext - - var bewit = credentials.id + '\\' + exp + '\\' + mac + '\\' + options.ext; - return hawk.utils.base64urlEncode(bewit); - }, - - // Validate server response - - /* - request: object created via 'new XMLHttpRequest()' after response received - artifacts: object received from header().artifacts - options: { - payload: optional payload received - required: specifies if a Server-Authorization header is required. Defaults to 'false' - } - */ - - authenticate: function (request, credentials, artifacts, options) { - - options = options || {}; - - var getHeader = function (name) { - - return request.getResponseHeader ? request.getResponseHeader(name) : request.getHeader(name); - }; - - var wwwAuthenticate = getHeader('www-authenticate'); - if (wwwAuthenticate) { - - // Parse HTTP WWW-Authenticate header - - var wwwAttributes = hawk.utils.parseAuthorizationHeader(wwwAuthenticate, ['ts', 'tsm', 'error']); - if (!wwwAttributes) { - return false; - } - - if (wwwAttributes.ts) { - var tsm = hawk.crypto.calculateTsMac(wwwAttributes.ts, credentials); - if (tsm !== wwwAttributes.tsm) { - return false; - } - - hawk.utils.setNtpOffset(wwwAttributes.ts - Math.floor((new Date()).getTime() / 1000)); // Keep offset at 1 second precision - } - } - - // Parse HTTP Server-Authorization header - - var serverAuthorization = getHeader('server-authorization'); - if (!serverAuthorization && - !options.required) { - - return true; - } - - var attributes = hawk.utils.parseAuthorizationHeader(serverAuthorization, ['mac', 'ext', 'hash']); - if (!attributes) { - return false; - } - - var modArtifacts = { - ts: artifacts.ts, - nonce: artifacts.nonce, - method: artifacts.method, - resource: artifacts.resource, - host: artifacts.host, - port: artifacts.port, - hash: attributes.hash, - ext: attributes.ext, - app: artifacts.app, - dlg: artifacts.dlg - }; - - var mac = hawk.crypto.calculateMac('response', credentials, modArtifacts); - if (mac !== attributes.mac) { - return false; - } - - if (!options.payload && - options.payload !== '') { - - return true; - } - - if (!attributes.hash) { - return false; - } - - var calculatedHash = hawk.crypto.calculatePayloadHash(options.payload, credentials.algorithm, getHeader('content-type')); - return (calculatedHash === attributes.hash); - }, - - message: function (host, port, message, options) { - - // Validate inputs - - if (!host || typeof host !== 'string' || - !port || typeof port !== 'number' || - message === null || message === undefined || typeof message !== 'string' || - !options || typeof options !== 'object') { - - return null; - } - - // Application time - - var timestamp = options.timestamp || hawk.utils.now(options.localtimeOffsetMsec); - - // Validate credentials - - var credentials = options.credentials; - if (!credentials || - !credentials.id || - !credentials.key || - !credentials.algorithm) { - - // Invalid credential object - return null; - } - - if (hawk.crypto.algorithms.indexOf(credentials.algorithm) === -1) { - return null; - } - - // Calculate signature - - var artifacts = { - ts: timestamp, - nonce: options.nonce || hawk.utils.randomString(6), - host: host, - port: port, - hash: hawk.crypto.calculatePayloadHash(message, credentials.algorithm) - }; - - // Construct authorization - - var result = { - id: credentials.id, - ts: artifacts.ts, - nonce: artifacts.nonce, - hash: artifacts.hash, - mac: hawk.crypto.calculateMac('message', credentials, artifacts) - }; - - return result; - }, - - authenticateTimestamp: function (message, credentials, updateClock) { // updateClock defaults to true - - var tsm = hawk.crypto.calculateTsMac(message.ts, credentials); - if (tsm !== message.tsm) { - return false; - } - - if (updateClock !== false) { - hawk.utils.setNtpOffset(message.ts - Math.floor((new Date()).getTime() / 1000)); // Keep offset at 1 second precision - } - - return true; - } -}; - - -hawk.crypto = { - - headerVersion: '1', - - algorithms: ['sha1', 'sha256'], - - calculateMac: function (type, credentials, options) { - - var normalized = hawk.crypto.generateNormalizedString(type, options); - - var hmac = CryptoJS['Hmac' + credentials.algorithm.toUpperCase()](normalized, credentials.key); - return hmac.toString(CryptoJS.enc.Base64); - }, - - generateNormalizedString: function (type, options) { - - var normalized = 'hawk.' + hawk.crypto.headerVersion + '.' + type + '\n' + - options.ts + '\n' + - options.nonce + '\n' + - (options.method || '').toUpperCase() + '\n' + - (options.resource || '') + '\n' + - options.host.toLowerCase() + '\n' + - options.port + '\n' + - (options.hash || '') + '\n'; - - if (options.ext) { - normalized += options.ext.replace('\\', '\\\\').replace('\n', '\\n'); - } - - normalized += '\n'; - - if (options.app) { - normalized += options.app + '\n' + - (options.dlg || '') + '\n'; - } - - return normalized; - }, - - calculatePayloadHash: function (payload, algorithm, contentType) { - - var hash = CryptoJS.algo[algorithm.toUpperCase()].create(); - hash.update('hawk.' + hawk.crypto.headerVersion + '.payload\n'); - hash.update(hawk.utils.parseContentType(contentType) + '\n'); - hash.update(payload); - hash.update('\n'); - return hash.finalize().toString(CryptoJS.enc.Base64); - }, - - calculateTsMac: function (ts, credentials) { - - var hash = CryptoJS['Hmac' + credentials.algorithm.toUpperCase()]('hawk.' + hawk.crypto.headerVersion + '.ts\n' + ts + '\n', credentials.key); - return hash.toString(CryptoJS.enc.Base64); - } -}; - - -// localStorage compatible interface - -hawk.internals.LocalStorage = function () { - - this._cache = {}; - this.length = 0; - - this.getItem = function (key) { - - return this._cache.hasOwnProperty(key) ? String(this._cache[key]) : null; - }; - - this.setItem = function (key, value) { - - this._cache[key] = String(value); - this.length = Object.keys(this._cache).length; - }; - - this.removeItem = function (key) { - - delete this._cache[key]; - this.length = Object.keys(this._cache).length; - }; - - this.clear = function () { - - this._cache = {}; - this.length = 0; - }; - - this.key = function (i) { - - return Object.keys(this._cache)[i || 0]; - }; -}; - - -hawk.utils = { - - storage: new hawk.internals.LocalStorage(), - - setStorage: function (storage) { - - var ntpOffset = hawk.utils.storage.getItem('hawk_ntp_offset'); - hawk.utils.storage = storage; - if (ntpOffset) { - hawk.utils.setNtpOffset(ntpOffset); - } - }, - - setNtpOffset: function (offset) { - - try { - hawk.utils.storage.setItem('hawk_ntp_offset', offset); - } - catch (err) { - console.error('[hawk] could not write to storage.'); - console.error(err); - } - }, - - getNtpOffset: function () { - - var offset = hawk.utils.storage.getItem('hawk_ntp_offset'); - if (!offset) { - return 0; - } - - return parseInt(offset, 10); - }, - - now: function (localtimeOffsetMsec) { - - return Math.floor(((new Date()).getTime() + (localtimeOffsetMsec || 0)) / 1000) + hawk.utils.getNtpOffset(); - }, - - escapeHeaderAttribute: function (attribute) { - - return attribute.replace(/\\/g, '\\\\').replace(/\"/g, '\\"'); - }, - - parseContentType: function (header) { - - if (!header) { - return ''; - } - - return header.split(';')[0].replace(/^\s+|\s+$/g, '').toLowerCase(); - }, - - parseAuthorizationHeader: function (header, keys) { - - if (!header) { - return null; - } - - var headerParts = header.match(/^(\w+)(?:\s+(.*))?$/); // Header: scheme[ something] - if (!headerParts) { - return null; - } - - var scheme = headerParts[1]; - if (scheme.toLowerCase() !== 'hawk') { - return null; - } - - var attributesString = headerParts[2]; - if (!attributesString) { - return null; - } - - var attributes = {}; - var verify = attributesString.replace(/(\w+)="([^"\\]*)"\s*(?:,\s*|$)/g, function ($0, $1, $2) { - - // Check valid attribute names - - if (keys.indexOf($1) === -1) { - return; - } - - // Allowed attribute value characters: !#$%&'()*+,-./:;<=>?@[]^_`{|}~ and space, a-z, A-Z, 0-9 - - if ($2.match(/^[ \w\!#\$%&'\(\)\*\+,\-\.\/\:;<\=>\?@\[\]\^`\{\|\}~]+$/) === null) { - return; - } - - // Check for duplicates - - if (attributes.hasOwnProperty($1)) { - return; - } - - attributes[$1] = $2; - return ''; - }); - - if (verify !== '') { - return null; - } - - return attributes; - }, - - randomString: function (size) { - - var randomSource = 'abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789'; - var len = randomSource.length; - - var result = []; - for (var i = 0; i < size; ++i) { - result[i] = randomSource[Math.floor(Math.random() * len)]; - } - - return result.join(''); - }, - - uriRegex: /^([^:]+)\:\/\/(?:[^@]*@)?([^\/:]+)(?:\:(\d+))?([^#]*)(?:#.*)?$/, // scheme://credentials@host:port/resource#fragment - parseUri: function (input) { - - var parts = input.match(hawk.utils.uriRegex); - if (!parts) { - return { host: '', port: '', resource: '' }; - } - - var scheme = parts[1].toLowerCase(); - var uri = { - host: parts[2], - port: parts[3] || (scheme === 'http' ? '80' : (scheme === 'https' ? '443' : '')), - resource: parts[4] - }; - - return uri; - }, - - base64urlEncode: function (value) { - - var wordArray = CryptoJS.enc.Utf8.parse(value); - var encoded = CryptoJS.enc.Base64.stringify(wordArray); - return encoded.replace(/\+/g, '-').replace(/\//g, '_').replace(/\=/g, ''); - } -}; - - -// $lab:coverage:off$ -/* eslint-disable */ - -// Based on: Crypto-JS v3.1.2 -// Copyright (c) 2009-2013, Jeff Mott. All rights reserved. -// http://code.google.com/p/crypto-js/ -// http://code.google.com/p/crypto-js/wiki/License - -var CryptoJS = CryptoJS || function (h, r) { var k = {}, l = k.lib = {}, n = function () { }, f = l.Base = { extend: function (a) { n.prototype = this; var b = new n; a && b.mixIn(a); b.hasOwnProperty("init") || (b.init = function () { b.$super.init.apply(this, arguments) }); b.init.prototype = b; b.$super = this; return b }, create: function () { var a = this.extend(); a.init.apply(a, arguments); return a }, init: function () { }, mixIn: function (a) { for (var b in a) a.hasOwnProperty(b) && (this[b] = a[b]); a.hasOwnProperty("toString") && (this.toString = a.toString) }, clone: function () { return this.init.prototype.extend(this) } }, j = l.WordArray = f.extend({ init: function (a, b) { a = this.words = a || []; this.sigBytes = b != r ? b : 4 * a.length }, toString: function (a) { return (a || s).stringify(this) }, concat: function (a) { var b = this.words, d = a.words, c = this.sigBytes; a = a.sigBytes; this.clamp(); if (c % 4) for (var e = 0; e < a; e++) b[c + e >>> 2] |= (d[e >>> 2] >>> 24 - 8 * (e % 4) & 255) << 24 - 8 * ((c + e) % 4); else if (65535 < d.length) for (e = 0; e < a; e += 4) b[c + e >>> 2] = d[e >>> 2]; else b.push.apply(b, d); this.sigBytes += a; return this }, clamp: function () { var a = this.words, b = this.sigBytes; a[b >>> 2] &= 4294967295 << 32 - 8 * (b % 4); a.length = h.ceil(b / 4) }, clone: function () { var a = f.clone.call(this); a.words = this.words.slice(0); return a }, random: function (a) { for (var b = [], d = 0; d < a; d += 4) b.push(4294967296 * h.random() | 0); return new j.init(b, a) } }), m = k.enc = {}, s = m.Hex = { stringify: function (a) { var b = a.words; a = a.sigBytes; for (var d = [], c = 0; c < a; c++) { var e = b[c >>> 2] >>> 24 - 8 * (c % 4) & 255; d.push((e >>> 4).toString(16)); d.push((e & 15).toString(16)) } return d.join("") }, parse: function (a) { for (var b = a.length, d = [], c = 0; c < b; c += 2) d[c >>> 3] |= parseInt(a.substr(c, 2), 16) << 24 - 4 * (c % 8); return new j.init(d, b / 2) } }, p = m.Latin1 = { stringify: function (a) { var b = a.words; a = a.sigBytes; for (var d = [], c = 0; c < a; c++) d.push(String.fromCharCode(b[c >>> 2] >>> 24 - 8 * (c % 4) & 255)); return d.join("") }, parse: function (a) { for (var b = a.length, d = [], c = 0; c < b; c++) d[c >>> 2] |= (a.charCodeAt(c) & 255) << 24 - 8 * (c % 4); return new j.init(d, b) } }, t = m.Utf8 = { stringify: function (a) { try { return decodeURIComponent(escape(p.stringify(a))) } catch (b) { throw Error("Malformed UTF-8 data"); } }, parse: function (a) { return p.parse(unescape(encodeURIComponent(a))) } }, q = l.BufferedBlockAlgorithm = f.extend({ reset: function () { this._data = new j.init; this._nDataBytes = 0 }, _append: function (a) { "string" == typeof a && (a = t.parse(a)); this._data.concat(a); this._nDataBytes += a.sigBytes }, _process: function (a) { var b = this._data, d = b.words, c = b.sigBytes, e = this.blockSize, f = c / (4 * e), f = a ? h.ceil(f) : h.max((f | 0) - this._minBufferSize, 0); a = f * e; c = h.min(4 * a, c); if (a) { for (var g = 0; g < a; g += e) this._doProcessBlock(d, g); g = d.splice(0, a); b.sigBytes -= c } return new j.init(g, c) }, clone: function () { var a = f.clone.call(this); a._data = this._data.clone(); return a }, _minBufferSize: 0 }); l.Hasher = q.extend({ cfg: f.extend(), init: function (a) { this.cfg = this.cfg.extend(a); this.reset() }, reset: function () { q.reset.call(this); this._doReset() }, update: function (a) { this._append(a); this._process(); return this }, finalize: function (a) { a && this._append(a); return this._doFinalize() }, blockSize: 16, _createHelper: function (a) { return function (b, d) { return (new a.init(d)).finalize(b) } }, _createHmacHelper: function (a) { return function (b, d) { return (new u.HMAC.init(a, d)).finalize(b) } } }); var u = k.algo = {}; return k }(Math); -(function () { var k = CryptoJS, b = k.lib, m = b.WordArray, l = b.Hasher, d = [], b = k.algo.SHA1 = l.extend({ _doReset: function () { this._hash = new m.init([1732584193, 4023233417, 2562383102, 271733878, 3285377520]) }, _doProcessBlock: function (n, p) { for (var a = this._hash.words, e = a[0], f = a[1], h = a[2], j = a[3], b = a[4], c = 0; 80 > c; c++) { if (16 > c) d[c] = n[p + c] | 0; else { var g = d[c - 3] ^ d[c - 8] ^ d[c - 14] ^ d[c - 16]; d[c] = g << 1 | g >>> 31 } g = (e << 5 | e >>> 27) + b + d[c]; g = 20 > c ? g + ((f & h | ~f & j) + 1518500249) : 40 > c ? g + ((f ^ h ^ j) + 1859775393) : 60 > c ? g + ((f & h | f & j | h & j) - 1894007588) : g + ((f ^ h ^ j) - 899497514); b = j; j = h; h = f << 30 | f >>> 2; f = e; e = g } a[0] = a[0] + e | 0; a[1] = a[1] + f | 0; a[2] = a[2] + h | 0; a[3] = a[3] + j | 0; a[4] = a[4] + b | 0 }, _doFinalize: function () { var b = this._data, d = b.words, a = 8 * this._nDataBytes, e = 8 * b.sigBytes; d[e >>> 5] |= 128 << 24 - e % 32; d[(e + 64 >>> 9 << 4) + 14] = Math.floor(a / 4294967296); d[(e + 64 >>> 9 << 4) + 15] = a; b.sigBytes = 4 * d.length; this._process(); return this._hash }, clone: function () { var b = l.clone.call(this); b._hash = this._hash.clone(); return b } }); k.SHA1 = l._createHelper(b); k.HmacSHA1 = l._createHmacHelper(b) })(); -(function (k) { for (var g = CryptoJS, h = g.lib, v = h.WordArray, j = h.Hasher, h = g.algo, s = [], t = [], u = function (q) { return 4294967296 * (q - (q | 0)) | 0 }, l = 2, b = 0; 64 > b;) { var d; a: { d = l; for (var w = k.sqrt(d), r = 2; r <= w; r++) if (!(d % r)) { d = !1; break a } d = !0 } d && (8 > b && (s[b] = u(k.pow(l, 0.5))), t[b] = u(k.pow(l, 1 / 3)), b++); l++ } var n = [], h = h.SHA256 = j.extend({ _doReset: function () { this._hash = new v.init(s.slice(0)) }, _doProcessBlock: function (q, h) { for (var a = this._hash.words, c = a[0], d = a[1], b = a[2], k = a[3], f = a[4], g = a[5], j = a[6], l = a[7], e = 0; 64 > e; e++) { if (16 > e) n[e] = q[h + e] | 0; else { var m = n[e - 15], p = n[e - 2]; n[e] = ((m << 25 | m >>> 7) ^ (m << 14 | m >>> 18) ^ m >>> 3) + n[e - 7] + ((p << 15 | p >>> 17) ^ (p << 13 | p >>> 19) ^ p >>> 10) + n[e - 16] } m = l + ((f << 26 | f >>> 6) ^ (f << 21 | f >>> 11) ^ (f << 7 | f >>> 25)) + (f & g ^ ~f & j) + t[e] + n[e]; p = ((c << 30 | c >>> 2) ^ (c << 19 | c >>> 13) ^ (c << 10 | c >>> 22)) + (c & d ^ c & b ^ d & b); l = j; j = g; g = f; f = k + m | 0; k = b; b = d; d = c; c = m + p | 0 } a[0] = a[0] + c | 0; a[1] = a[1] + d | 0; a[2] = a[2] + b | 0; a[3] = a[3] + k | 0; a[4] = a[4] + f | 0; a[5] = a[5] + g | 0; a[6] = a[6] + j | 0; a[7] = a[7] + l | 0 }, _doFinalize: function () { var d = this._data, b = d.words, a = 8 * this._nDataBytes, c = 8 * d.sigBytes; b[c >>> 5] |= 128 << 24 - c % 32; b[(c + 64 >>> 9 << 4) + 14] = k.floor(a / 4294967296); b[(c + 64 >>> 9 << 4) + 15] = a; d.sigBytes = 4 * b.length; this._process(); return this._hash }, clone: function () { var b = j.clone.call(this); b._hash = this._hash.clone(); return b } }); g.SHA256 = j._createHelper(h); g.HmacSHA256 = j._createHmacHelper(h) })(Math); -(function () { var c = CryptoJS, k = c.enc.Utf8; c.algo.HMAC = c.lib.Base.extend({ init: function (a, b) { a = this._hasher = new a.init; "string" == typeof b && (b = k.parse(b)); var c = a.blockSize, e = 4 * c; b.sigBytes > e && (b = a.finalize(b)); b.clamp(); for (var f = this._oKey = b.clone(), g = this._iKey = b.clone(), h = f.words, j = g.words, d = 0; d < c; d++) h[d] ^= 1549556828, j[d] ^= 909522486; f.sigBytes = g.sigBytes = e; this.reset() }, reset: function () { var a = this._hasher; a.reset(); a.update(this._iKey) }, update: function (a) { this._hasher.update(a); return this }, finalize: function (a) { var b = this._hasher; a = b.finalize(a); b.reset(); return b.finalize(this._oKey.clone().concat(a)) } }) })(); -(function () { var h = CryptoJS, j = h.lib.WordArray; h.enc.Base64 = { stringify: function (b) { var e = b.words, f = b.sigBytes, c = this._map; b.clamp(); b = []; for (var a = 0; a < f; a += 3) for (var d = (e[a >>> 2] >>> 24 - 8 * (a % 4) & 255) << 16 | (e[a + 1 >>> 2] >>> 24 - 8 * ((a + 1) % 4) & 255) << 8 | e[a + 2 >>> 2] >>> 24 - 8 * ((a + 2) % 4) & 255, g = 0; 4 > g && a + 0.75 * g < f; g++) b.push(c.charAt(d >>> 6 * (3 - g) & 63)); if (e = c.charAt(64)) for (; b.length % 4;) b.push(e); return b.join("") }, parse: function (b) { var e = b.length, f = this._map, c = f.charAt(64); c && (c = b.indexOf(c), -1 != c && (e = c)); for (var c = [], a = 0, d = 0; d < e; d++) if (d % 4) { var g = f.indexOf(b.charAt(d - 1)) << 2 * (d % 4), h = f.indexOf(b.charAt(d)) >>> 6 - 2 * (d % 4); c[a >>> 2] |= (g | h) << 24 - 8 * (a % 4); a++ } return j.create(c, a) }, _map: "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/=" } })(); - -hawk.crypto.internals = CryptoJS; - - -// Export if used as a module - -if (typeof module !== 'undefined' && module.exports) { - module.exports = hawk; -} - -/* eslint-enable */ -// $lab:coverage:on$ - -},{}],46:[function(require,module,exports){ -// Copyright 2015 Joyent, Inc. - -var parser = require('./parser'); -var signer = require('./signer'); -var verify = require('./verify'); -var utils = require('./utils'); - - - -///--- API - -module.exports = { - - parse: parser.parseRequest, - parseRequest: parser.parseRequest, - - sign: signer.signRequest, - signRequest: signer.signRequest, - createSigner: signer.createSigner, - isSigner: signer.isSigner, - - sshKeyToPEM: utils.sshKeyToPEM, - sshKeyFingerprint: utils.fingerprint, - pemToRsaSSHKey: utils.pemToRsaSSHKey, - - verify: verify.verifySignature, - verifySignature: verify.verifySignature, - verifyHMAC: verify.verifyHMAC -}; - -},{"./parser":47,"./signer":48,"./utils":49,"./verify":50}],47:[function(require,module,exports){ -// Copyright 2012 Joyent, Inc. All rights reserved. - -var assert = require('assert-plus'); -var util = require('util'); -var utils = require('./utils'); - - - -///--- Globals - -var HASH_ALGOS = utils.HASH_ALGOS; -var PK_ALGOS = utils.PK_ALGOS; -var HttpSignatureError = utils.HttpSignatureError; -var InvalidAlgorithmError = utils.InvalidAlgorithmError; -var validateAlgorithm = utils.validateAlgorithm; - -var State = { - New: 0, - Params: 1 -}; - -var ParamsState = { - Name: 0, - Quote: 1, - Value: 2, - Comma: 3 -}; - - -///--- Specific Errors - - -function ExpiredRequestError(message) { - HttpSignatureError.call(this, message, ExpiredRequestError); -} -util.inherits(ExpiredRequestError, HttpSignatureError); - - -function InvalidHeaderError(message) { - HttpSignatureError.call(this, message, InvalidHeaderError); -} -util.inherits(InvalidHeaderError, HttpSignatureError); - - -function InvalidParamsError(message) { - HttpSignatureError.call(this, message, InvalidParamsError); -} -util.inherits(InvalidParamsError, HttpSignatureError); - - -function MissingHeaderError(message) { - HttpSignatureError.call(this, message, MissingHeaderError); -} -util.inherits(MissingHeaderError, HttpSignatureError); - -function StrictParsingError(message) { - HttpSignatureError.call(this, message, StrictParsingError); -} -util.inherits(StrictParsingError, HttpSignatureError); - -///--- Exported API - -module.exports = { - - /** - * Parses the 'Authorization' header out of an http.ServerRequest object. - * - * Note that this API will fully validate the Authorization header, and throw - * on any error. It will not however check the signature, or the keyId format - * as those are specific to your environment. You can use the options object - * to pass in extra constraints. - * - * As a response object you can expect this: - * - * { - * "scheme": "Signature", - * "params": { - * "keyId": "foo", - * "algorithm": "rsa-sha256", - * "headers": [ - * "date" or "x-date", - * "digest" - * ], - * "signature": "base64" - * }, - * "signingString": "ready to be passed to crypto.verify()" - * } - * - * @param {Object} request an http.ServerRequest. - * @param {Object} options an optional options object with: - * - clockSkew: allowed clock skew in seconds (default 300). - * - headers: required header names (def: date or x-date) - * - algorithms: algorithms to support (default: all). - * - strict: should enforce latest spec parsing - * (default: false). - * @return {Object} parsed out object (see above). - * @throws {TypeError} on invalid input. - * @throws {InvalidHeaderError} on an invalid Authorization header error. - * @throws {InvalidParamsError} if the params in the scheme are invalid. - * @throws {MissingHeaderError} if the params indicate a header not present, - * either in the request headers from the params, - * or not in the params from a required header - * in options. - * @throws {StrictParsingError} if old attributes are used in strict parsing - * mode. - * @throws {ExpiredRequestError} if the value of date or x-date exceeds skew. - */ - parseRequest: function parseRequest(request, options) { - assert.object(request, 'request'); - assert.object(request.headers, 'request.headers'); - if (options === undefined) { - options = {}; - } - if (options.headers === undefined) { - options.headers = [request.headers['x-date'] ? 'x-date' : 'date']; - } - assert.object(options, 'options'); - assert.arrayOfString(options.headers, 'options.headers'); - assert.optionalNumber(options.clockSkew, 'options.clockSkew'); - - if (!request.headers.authorization) - throw new MissingHeaderError('no authorization header present in ' + - 'the request'); - - options.clockSkew = options.clockSkew || 300; - - - var i = 0; - var state = State.New; - var substate = ParamsState.Name; - var tmpName = ''; - var tmpValue = ''; - - var parsed = { - scheme: '', - params: {}, - signingString: '', - - get algorithm() { - return this.params.algorithm.toUpperCase(); - }, - - get keyId() { - return this.params.keyId; - } - }; - - var authz = request.headers.authorization; - for (i = 0; i < authz.length; i++) { - var c = authz.charAt(i); - - switch (Number(state)) { - - case State.New: - if (c !== ' ') parsed.scheme += c; - else state = State.Params; - break; - - case State.Params: - switch (Number(substate)) { - - case ParamsState.Name: - var code = c.charCodeAt(0); - // restricted name of A-Z / a-z - if ((code >= 0x41 && code <= 0x5a) || // A-Z - (code >= 0x61 && code <= 0x7a)) { // a-z - tmpName += c; - } else if (c === '=') { - if (tmpName.length === 0) - throw new InvalidHeaderError('bad param format'); - substate = ParamsState.Quote; - } else { - throw new InvalidHeaderError('bad param format'); - } - break; - - case ParamsState.Quote: - if (c === '"') { - tmpValue = ''; - substate = ParamsState.Value; - } else { - throw new InvalidHeaderError('bad param format'); - } - break; - - case ParamsState.Value: - if (c === '"') { - parsed.params[tmpName] = tmpValue; - substate = ParamsState.Comma; - } else { - tmpValue += c; - } - break; - - case ParamsState.Comma: - if (c === ',') { - tmpName = ''; - substate = ParamsState.Name; - } else { - throw new InvalidHeaderError('bad param format'); - } - break; - - default: - throw new Error('Invalid substate'); - } - break; - - default: - throw new Error('Invalid substate'); - } - - } - - if (!parsed.params.headers || parsed.params.headers === '') { - if (request.headers['x-date']) { - parsed.params.headers = ['x-date']; - } else { - parsed.params.headers = ['date']; - } - } else { - parsed.params.headers = parsed.params.headers.split(' '); - } - - // Minimally validate the parsed object - if (!parsed.scheme || parsed.scheme !== 'Signature') - throw new InvalidHeaderError('scheme was not "Signature"'); - - if (!parsed.params.keyId) - throw new InvalidHeaderError('keyId was not specified'); - - if (!parsed.params.algorithm) - throw new InvalidHeaderError('algorithm was not specified'); - - if (!parsed.params.signature) - throw new InvalidHeaderError('signature was not specified'); - - // Check the algorithm against the official list - parsed.params.algorithm = parsed.params.algorithm.toLowerCase(); - try { - validateAlgorithm(parsed.params.algorithm); - } catch (e) { - if (e instanceof InvalidAlgorithmError) - throw (new InvalidParamsError(parsed.params.algorithm + ' is not ' + - 'supported')); - else - throw (e); - } - - // Build the signingString - for (i = 0; i < parsed.params.headers.length; i++) { - var h = parsed.params.headers[i].toLowerCase(); - parsed.params.headers[i] = h; - - if (h === 'request-line') { - if (!options.strict) { - /* - * We allow headers from the older spec drafts if strict parsing isn't - * specified in options. - */ - parsed.signingString += - request.method + ' ' + request.url + ' HTTP/' + request.httpVersion; - } else { - /* Strict parsing doesn't allow older draft headers. */ - throw (new StrictParsingError('request-line is not a valid header ' + - 'with strict parsing enabled.')); - } - } else if (h === '(request-target)') { - parsed.signingString += - '(request-target): ' + request.method.toLowerCase() + ' ' + - request.url; - } else { - var value = request.headers[h]; - if (value === undefined) - throw new MissingHeaderError(h + ' was not in the request'); - parsed.signingString += h + ': ' + value; - } - - if ((i + 1) < parsed.params.headers.length) - parsed.signingString += '\n'; - } - - // Check against the constraints - var date; - if (request.headers.date || request.headers['x-date']) { - if (request.headers['x-date']) { - date = new Date(request.headers['x-date']); - } else { - date = new Date(request.headers.date); - } - var now = new Date(); - var skew = Math.abs(now.getTime() - date.getTime()); - - if (skew > options.clockSkew * 1000) { - throw new ExpiredRequestError('clock skew of ' + - (skew / 1000) + - 's was greater than ' + - options.clockSkew + 's'); - } - } - - options.headers.forEach(function (hdr) { - // Remember that we already checked any headers in the params - // were in the request, so if this passes we're good. - if (parsed.params.headers.indexOf(hdr) < 0) - throw new MissingHeaderError(hdr + ' was not a signed header'); - }); - - if (options.algorithms) { - if (options.algorithms.indexOf(parsed.params.algorithm) === -1) - throw new InvalidParamsError(parsed.params.algorithm + - ' is not a supported algorithm'); - } - - return parsed; - } - -}; - -},{"./utils":49,"assert-plus":8,"util":298}],48:[function(require,module,exports){ -(function (Buffer){ -// Copyright 2012 Joyent, Inc. All rights reserved. - -var assert = require('assert-plus'); -var crypto = require('crypto'); -var http = require('http'); -var util = require('util'); -var sshpk = require('sshpk'); -var jsprim = require('jsprim'); -var utils = require('./utils'); - -var sprintf = require('util').format; - -var HASH_ALGOS = utils.HASH_ALGOS; -var PK_ALGOS = utils.PK_ALGOS; -var InvalidAlgorithmError = utils.InvalidAlgorithmError; -var HttpSignatureError = utils.HttpSignatureError; -var validateAlgorithm = utils.validateAlgorithm; - -///--- Globals - -var AUTHZ_FMT = - 'Signature keyId="%s",algorithm="%s",headers="%s",signature="%s"'; - -///--- Specific Errors - -function MissingHeaderError(message) { - HttpSignatureError.call(this, message, MissingHeaderError); -} -util.inherits(MissingHeaderError, HttpSignatureError); - -function StrictParsingError(message) { - HttpSignatureError.call(this, message, StrictParsingError); -} -util.inherits(StrictParsingError, HttpSignatureError); - -/* See createSigner() */ -function RequestSigner(options) { - assert.object(options, 'options'); - - var alg = []; - if (options.algorithm !== undefined) { - assert.string(options.algorithm, 'options.algorithm'); - alg = validateAlgorithm(options.algorithm); - } - this.rs_alg = alg; - - /* - * RequestSigners come in two varieties: ones with an rs_signFunc, and ones - * with an rs_signer. - * - * rs_signFunc-based RequestSigners have to build up their entire signing - * string within the rs_lines array and give it to rs_signFunc as a single - * concat'd blob. rs_signer-based RequestSigners can add a line at a time to - * their signing state by using rs_signer.update(), thus only needing to - * buffer the hash function state and one line at a time. - */ - if (options.sign !== undefined) { - assert.func(options.sign, 'options.sign'); - this.rs_signFunc = options.sign; - - } else if (alg[0] === 'hmac' && options.key !== undefined) { - assert.string(options.keyId, 'options.keyId'); - this.rs_keyId = options.keyId; - - if (typeof (options.key) !== 'string' && !Buffer.isBuffer(options.key)) - throw (new TypeError('options.key for HMAC must be a string or Buffer')); - - /* - * Make an rs_signer for HMACs, not a rs_signFunc -- HMACs digest their - * data in chunks rather than requiring it all to be given in one go - * at the end, so they are more similar to signers than signFuncs. - */ - this.rs_signer = crypto.createHmac(alg[1].toUpperCase(), options.key); - this.rs_signer.sign = function () { - var digest = this.digest('base64'); - return ({ - hashAlgorithm: alg[1], - toString: function () { return (digest); } - }); - }; - - } else if (options.key !== undefined) { - var key = options.key; - if (typeof (key) === 'string' || Buffer.isBuffer(key)) - key = sshpk.parsePrivateKey(key); - - assert.ok(sshpk.PrivateKey.isPrivateKey(key, [1, 2]), - 'options.key must be a sshpk.PrivateKey'); - this.rs_key = key; - - assert.string(options.keyId, 'options.keyId'); - this.rs_keyId = options.keyId; - - if (!PK_ALGOS[key.type]) { - throw (new InvalidAlgorithmError(key.type.toUpperCase() + ' type ' + - 'keys are not supported')); - } - - if (alg[0] !== undefined && key.type !== alg[0]) { - throw (new InvalidAlgorithmError('options.key must be a ' + - alg[0].toUpperCase() + ' key, was given a ' + - key.type.toUpperCase() + ' key instead')); - } - - this.rs_signer = key.createSign(alg[1]); - - } else { - throw (new TypeError('options.sign (func) or options.key is required')); - } - - this.rs_headers = []; - this.rs_lines = []; -} - -/** - * Adds a header to be signed, with its value, into this signer. - * - * @param {String} header - * @param {String} value - * @return {String} value written - */ -RequestSigner.prototype.writeHeader = function (header, value) { - assert.string(header, 'header'); - header = header.toLowerCase(); - assert.string(value, 'value'); - - this.rs_headers.push(header); - - if (this.rs_signFunc) { - this.rs_lines.push(header + ': ' + value); - - } else { - var line = header + ': ' + value; - if (this.rs_headers.length > 0) - line = '\n' + line; - this.rs_signer.update(line); - } - - return (value); -}; - -/** - * Adds a default Date header, returning its value. - * - * @return {String} - */ -RequestSigner.prototype.writeDateHeader = function () { - return (this.writeHeader('date', jsprim.rfc1123(new Date()))); -}; - -/** - * Adds the request target line to be signed. - * - * @param {String} method, HTTP method (e.g. 'get', 'post', 'put') - * @param {String} path - */ -RequestSigner.prototype.writeTarget = function (method, path) { - assert.string(method, 'method'); - assert.string(path, 'path'); - method = method.toLowerCase(); - this.writeHeader('(request-target)', method + ' ' + path); -}; - -/** - * Calculate the value for the Authorization header on this request - * asynchronously. - * - * @param {Func} callback (err, authz) - */ -RequestSigner.prototype.sign = function (cb) { - assert.func(cb, 'callback'); - - if (this.rs_headers.length < 1) - throw (new Error('At least one header must be signed')); - - var alg, authz; - if (this.rs_signFunc) { - var data = this.rs_lines.join('\n'); - var self = this; - this.rs_signFunc(data, function (err, sig) { - if (err) { - cb(err); - return; - } - try { - assert.object(sig, 'signature'); - assert.string(sig.keyId, 'signature.keyId'); - assert.string(sig.algorithm, 'signature.algorithm'); - assert.string(sig.signature, 'signature.signature'); - alg = validateAlgorithm(sig.algorithm); - - authz = sprintf(AUTHZ_FMT, - sig.keyId, - sig.algorithm, - self.rs_headers.join(' '), - sig.signature); - } catch (e) { - cb(e); - return; - } - cb(null, authz); - }); - - } else { - try { - var sigObj = this.rs_signer.sign(); - } catch (e) { - cb(e); - return; - } - alg = (this.rs_alg[0] || this.rs_key.type) + '-' + sigObj.hashAlgorithm; - var signature = sigObj.toString(); - authz = sprintf(AUTHZ_FMT, - this.rs_keyId, - alg, - this.rs_headers.join(' '), - signature); - cb(null, authz); - } -}; - -///--- Exported API - -module.exports = { - /** - * Identifies whether a given object is a request signer or not. - * - * @param {Object} object, the object to identify - * @returns {Boolean} - */ - isSigner: function (obj) { - if (typeof (obj) === 'object' && obj instanceof RequestSigner) - return (true); - return (false); - }, - - /** - * Creates a request signer, used to asynchronously build a signature - * for a request (does not have to be an http.ClientRequest). - * - * @param {Object} options, either: - * - {String} keyId - * - {String|Buffer} key - * - {String} algorithm (optional, required for HMAC) - * or: - * - {Func} sign (data, cb) - * @return {RequestSigner} - */ - createSigner: function createSigner(options) { - return (new RequestSigner(options)); - }, - - /** - * Adds an 'Authorization' header to an http.ClientRequest object. - * - * Note that this API will add a Date header if it's not already set. Any - * other headers in the options.headers array MUST be present, or this - * will throw. - * - * You shouldn't need to check the return type; it's just there if you want - * to be pedantic. - * - * The optional flag indicates whether parsing should use strict enforcement - * of the version draft-cavage-http-signatures-04 of the spec or beyond. - * The default is to be loose and support - * older versions for compatibility. - * - * @param {Object} request an instance of http.ClientRequest. - * @param {Object} options signing parameters object: - * - {String} keyId required. - * - {String} key required (either a PEM or HMAC key). - * - {Array} headers optional; defaults to ['date']. - * - {String} algorithm optional (unless key is HMAC); - * default is the same as the sshpk default - * signing algorithm for the type of key given - * - {String} httpVersion optional; defaults to '1.1'. - * - {Boolean} strict optional; defaults to 'false'. - * @return {Boolean} true if Authorization (and optionally Date) were added. - * @throws {TypeError} on bad parameter types (input). - * @throws {InvalidAlgorithmError} if algorithm was bad or incompatible with - * the given key. - * @throws {sshpk.KeyParseError} if key was bad. - * @throws {MissingHeaderError} if a header to be signed was specified but - * was not present. - */ - signRequest: function signRequest(request, options) { - assert.object(request, 'request'); - assert.object(options, 'options'); - assert.optionalString(options.algorithm, 'options.algorithm'); - assert.string(options.keyId, 'options.keyId'); - assert.optionalArrayOfString(options.headers, 'options.headers'); - assert.optionalString(options.httpVersion, 'options.httpVersion'); - - if (!request.getHeader('Date')) - request.setHeader('Date', jsprim.rfc1123(new Date())); - if (!options.headers) - options.headers = ['date']; - if (!options.httpVersion) - options.httpVersion = '1.1'; - - var alg = []; - if (options.algorithm) { - options.algorithm = options.algorithm.toLowerCase(); - alg = validateAlgorithm(options.algorithm); - } - - var i; - var stringToSign = ''; - for (i = 0; i < options.headers.length; i++) { - if (typeof (options.headers[i]) !== 'string') - throw new TypeError('options.headers must be an array of Strings'); - - var h = options.headers[i].toLowerCase(); - - if (h === 'request-line') { - if (!options.strict) { - /** - * We allow headers from the older spec drafts if strict parsing isn't - * specified in options. - */ - stringToSign += - request.method + ' ' + request.path + ' HTTP/' + - options.httpVersion; - } else { - /* Strict parsing doesn't allow older draft headers. */ - throw (new StrictParsingError('request-line is not a valid header ' + - 'with strict parsing enabled.')); - } - } else if (h === '(request-target)') { - stringToSign += - '(request-target): ' + request.method.toLowerCase() + ' ' + - request.path; - } else { - var value = request.getHeader(h); - if (value === undefined || value === '') { - throw new MissingHeaderError(h + ' was not in the request'); - } - stringToSign += h + ': ' + value; - } - - if ((i + 1) < options.headers.length) - stringToSign += '\n'; - } - - /* This is just for unit tests. */ - if (request.hasOwnProperty('_stringToSign')) { - request._stringToSign = stringToSign; - } - - var signature; - if (alg[0] === 'hmac') { - if (typeof (options.key) !== 'string' && !Buffer.isBuffer(options.key)) - throw (new TypeError('options.key must be a string or Buffer')); - - var hmac = crypto.createHmac(alg[1].toUpperCase(), options.key); - hmac.update(stringToSign); - signature = hmac.digest('base64'); - - } else { - var key = options.key; - if (typeof (key) === 'string' || Buffer.isBuffer(key)) - key = sshpk.parsePrivateKey(options.key); - - assert.ok(sshpk.PrivateKey.isPrivateKey(key, [1, 2]), - 'options.key must be a sshpk.PrivateKey'); - - if (!PK_ALGOS[key.type]) { - throw (new InvalidAlgorithmError(key.type.toUpperCase() + ' type ' + - 'keys are not supported')); - } - - if (alg[0] !== undefined && key.type !== alg[0]) { - throw (new InvalidAlgorithmError('options.key must be a ' + - alg[0].toUpperCase() + ' key, was given a ' + - key.type.toUpperCase() + ' key instead')); - } - - var signer = key.createSign(alg[1]); - signer.update(stringToSign); - var sigObj = signer.sign(); - if (!HASH_ALGOS[sigObj.hashAlgorithm]) { - throw (new InvalidAlgorithmError(sigObj.hashAlgorithm.toUpperCase() + - ' is not a supported hash algorithm')); - } - options.algorithm = key.type + '-' + sigObj.hashAlgorithm; - signature = sigObj.toString(); - assert.notStrictEqual(signature, '', 'empty signature produced'); - } - - request.setHeader('Authorization', sprintf(AUTHZ_FMT, - options.keyId, - options.algorithm, - options.headers.join(' '), - signature)); - - return true; - } - -}; - -}).call(this,{"isBuffer":require("../../../../../../../../../usr/local/lib/node_modules/watchify/node_modules/is-buffer/index.js")}) -},{"../../../../../../../../../usr/local/lib/node_modules/watchify/node_modules/is-buffer/index.js":234,"./utils":49,"assert-plus":8,"crypto":194,"http":288,"jsprim":68,"sshpk":116,"util":298}],49:[function(require,module,exports){ -// Copyright 2012 Joyent, Inc. All rights reserved. - -var assert = require('assert-plus'); -var sshpk = require('sshpk'); -var util = require('util'); - -var HASH_ALGOS = { - 'sha1': true, - 'sha256': true, - 'sha512': true -}; - -var PK_ALGOS = { - 'rsa': true, - 'dsa': true, - 'ecdsa': true -}; - -function HttpSignatureError(message, caller) { - if (Error.captureStackTrace) - Error.captureStackTrace(this, caller || HttpSignatureError); - - this.message = message; - this.name = caller.name; -} -util.inherits(HttpSignatureError, Error); - -function InvalidAlgorithmError(message) { - HttpSignatureError.call(this, message, InvalidAlgorithmError); -} -util.inherits(InvalidAlgorithmError, HttpSignatureError); - -function validateAlgorithm(algorithm) { - var alg = algorithm.toLowerCase().split('-'); - - if (alg.length !== 2) { - throw (new InvalidAlgorithmError(alg[0].toUpperCase() + ' is not a ' + - 'valid algorithm')); - } - - if (alg[0] !== 'hmac' && !PK_ALGOS[alg[0]]) { - throw (new InvalidAlgorithmError(alg[0].toUpperCase() + ' type keys ' + - 'are not supported')); - } - - if (!HASH_ALGOS[alg[1]]) { - throw (new InvalidAlgorithmError(alg[1].toUpperCase() + ' is not a ' + - 'supported hash algorithm')); - } - - return (alg); -} - -///--- API - -module.exports = { - - HASH_ALGOS: HASH_ALGOS, - PK_ALGOS: PK_ALGOS, - - HttpSignatureError: HttpSignatureError, - InvalidAlgorithmError: InvalidAlgorithmError, - - validateAlgorithm: validateAlgorithm, - - /** - * Converts an OpenSSH public key (rsa only) to a PKCS#8 PEM file. - * - * The intent of this module is to interoperate with OpenSSL only, - * specifically the node crypto module's `verify` method. - * - * @param {String} key an OpenSSH public key. - * @return {String} PEM encoded form of the RSA public key. - * @throws {TypeError} on bad input. - * @throws {Error} on invalid ssh key formatted data. - */ - sshKeyToPEM: function sshKeyToPEM(key) { - assert.string(key, 'ssh_key'); - - var k = sshpk.parseKey(key, 'ssh'); - return (k.toString('pem')); - }, - - - /** - * Generates an OpenSSH fingerprint from an ssh public key. - * - * @param {String} key an OpenSSH public key. - * @return {String} key fingerprint. - * @throws {TypeError} on bad input. - * @throws {Error} if what you passed doesn't look like an ssh public key. - */ - fingerprint: function fingerprint(key) { - assert.string(key, 'ssh_key'); - - var k = sshpk.parseKey(key, 'ssh'); - return (k.fingerprint('md5').toString('hex')); - }, - - /** - * Converts a PKGCS#8 PEM file to an OpenSSH public key (rsa) - * - * The reverse of the above function. - */ - pemToRsaSSHKey: function pemToRsaSSHKey(pem, comment) { - assert.equal('string', typeof (pem), 'typeof pem'); - - var k = sshpk.parseKey(pem, 'pem'); - k.comment = comment; - return (k.toString('ssh')); - } -}; - -},{"assert-plus":8,"sshpk":116,"util":298}],50:[function(require,module,exports){ -(function (Buffer){ -// Copyright 2015 Joyent, Inc. - -var assert = require('assert-plus'); -var crypto = require('crypto'); -var sshpk = require('sshpk'); -var utils = require('./utils'); - -var HASH_ALGOS = utils.HASH_ALGOS; -var PK_ALGOS = utils.PK_ALGOS; -var InvalidAlgorithmError = utils.InvalidAlgorithmError; -var HttpSignatureError = utils.HttpSignatureError; -var validateAlgorithm = utils.validateAlgorithm; - -///--- Exported API - -module.exports = { - /** - * Verify RSA/DSA signature against public key. You are expected to pass in - * an object that was returned from `parse()`. - * - * @param {Object} parsedSignature the object you got from `parse`. - * @param {String} pubkey RSA/DSA private key PEM. - * @return {Boolean} true if valid, false otherwise. - * @throws {TypeError} if you pass in bad arguments. - * @throws {InvalidAlgorithmError} - */ - verifySignature: function verifySignature(parsedSignature, pubkey) { - assert.object(parsedSignature, 'parsedSignature'); - if (typeof (pubkey) === 'string' || Buffer.isBuffer(pubkey)) - pubkey = sshpk.parseKey(pubkey); - assert.ok(sshpk.Key.isKey(pubkey, [1, 1]), 'pubkey must be a sshpk.Key'); - - var alg = validateAlgorithm(parsedSignature.algorithm); - if (alg[0] === 'hmac' || alg[0] !== pubkey.type) - return (false); - - var v = pubkey.createVerify(alg[1]); - v.update(parsedSignature.signingString); - return (v.verify(parsedSignature.params.signature, 'base64')); - }, - - /** - * Verify HMAC against shared secret. You are expected to pass in an object - * that was returned from `parse()`. - * - * @param {Object} parsedSignature the object you got from `parse`. - * @param {String} secret HMAC shared secret. - * @return {Boolean} true if valid, false otherwise. - * @throws {TypeError} if you pass in bad arguments. - * @throws {InvalidAlgorithmError} - */ - verifyHMAC: function verifyHMAC(parsedSignature, secret) { - assert.object(parsedSignature, 'parsedHMAC'); - assert.string(secret, 'secret'); - - var alg = validateAlgorithm(parsedSignature.algorithm); - if (alg[0] !== 'hmac') - return (false); - - var hashAlg = alg[1].toUpperCase(); - - var hmac = crypto.createHmac(hashAlg, secret); - hmac.update(parsedSignature.signingString); - - /* - * Now double-hash to avoid leaking timing information - there's - * no easy constant-time compare in JS, so we use this approach - * instead. See for more info: - * https://www.isecpartners.com/blog/2011/february/double-hmac- - * verification.aspx - */ - var h1 = crypto.createHmac(hashAlg, secret); - h1.update(hmac.digest()); - h1 = h1.digest(); - var h2 = crypto.createHmac(hashAlg, secret); - h2.update(new Buffer(parsedSignature.params.signature, 'base64')); - h2 = h2.digest(); - - /* Node 0.8 returns strings from .digest(). */ - if (typeof (h1) === 'string') - return (h1 === h2); - /* And node 0.10 lacks the .equals() method on Buffers. */ - if (Buffer.isBuffer(h1) && !h1.equals) - return (h1.toString('binary') === h2.toString('binary')); - - return (h1.equals(h2)); - } -}; - -}).call(this,require("buffer").Buffer) -},{"./utils":49,"assert-plus":8,"buffer":185,"crypto":194,"sshpk":116}],51:[function(require,module,exports){ -if (typeof Object.create === 'function') { - // implementation from standard node.js 'util' module - module.exports = function inherits(ctor, superCtor) { - ctor.super_ = superCtor - ctor.prototype = Object.create(superCtor.prototype, { - constructor: { - value: ctor, - enumerable: false, - writable: true, - configurable: true - } - }); - }; -} else { - // old school shim for old browsers - module.exports = function inherits(ctor, superCtor) { - ctor.super_ = superCtor - var TempCtor = function () {} - TempCtor.prototype = superCtor.prototype - ctor.prototype = new TempCtor() - ctor.prototype.constructor = ctor - } -} - -},{}],52:[function(require,module,exports){ -exports['date-time'] = /^\d{4}-(?:0[0-9]{1}|1[0-2]{1})-[0-9]{2}[tT ]\d{2}:\d{2}:\d{2}(\.\d+)?([zZ]|[+-]\d{2}:\d{2})$/ -exports['date'] = /^\d{4}-(?:0[0-9]{1}|1[0-2]{1})-[0-9]{2}$/ -exports['time'] = /^\d{2}:\d{2}:\d{2}$/ -exports['email'] = /^\S+@\S+$/ -exports['ip-address'] = exports['ipv4'] = /^(?:(?:25[0-5]|2[0-4][0-9]|[01]?[0-9][0-9]?)\.){3}(?:25[0-5]|2[0-4][0-9]|[01]?[0-9][0-9]?)$/ -exports['ipv6'] = /^\s*((([0-9A-Fa-f]{1,4}:){7}([0-9A-Fa-f]{1,4}|:))|(([0-9A-Fa-f]{1,4}:){6}(:[0-9A-Fa-f]{1,4}|((25[0-5]|2[0-4]\d|1\d\d|[1-9]?\d)(\.(25[0-5]|2[0-4]\d|1\d\d|[1-9]?\d)){3})|:))|(([0-9A-Fa-f]{1,4}:){5}(((:[0-9A-Fa-f]{1,4}){1,2})|:((25[0-5]|2[0-4]\d|1\d\d|[1-9]?\d)(\.(25[0-5]|2[0-4]\d|1\d\d|[1-9]?\d)){3})|:))|(([0-9A-Fa-f]{1,4}:){4}(((:[0-9A-Fa-f]{1,4}){1,3})|((:[0-9A-Fa-f]{1,4})?:((25[0-5]|2[0-4]\d|1\d\d|[1-9]?\d)(\.(25[0-5]|2[0-4]\d|1\d\d|[1-9]?\d)){3}))|:))|(([0-9A-Fa-f]{1,4}:){3}(((:[0-9A-Fa-f]{1,4}){1,4})|((:[0-9A-Fa-f]{1,4}){0,2}:((25[0-5]|2[0-4]\d|1\d\d|[1-9]?\d)(\.(25[0-5]|2[0-4]\d|1\d\d|[1-9]?\d)){3}))|:))|(([0-9A-Fa-f]{1,4}:){2}(((:[0-9A-Fa-f]{1,4}){1,5})|((:[0-9A-Fa-f]{1,4}){0,3}:((25[0-5]|2[0-4]\d|1\d\d|[1-9]?\d)(\.(25[0-5]|2[0-4]\d|1\d\d|[1-9]?\d)){3}))|:))|(([0-9A-Fa-f]{1,4}:){1}(((:[0-9A-Fa-f]{1,4}){1,6})|((:[0-9A-Fa-f]{1,4}){0,4}:((25[0-5]|2[0-4]\d|1\d\d|[1-9]?\d)(\.(25[0-5]|2[0-4]\d|1\d\d|[1-9]?\d)){3}))|:))|(:(((:[0-9A-Fa-f]{1,4}){1,7})|((:[0-9A-Fa-f]{1,4}){0,5}:((25[0-5]|2[0-4]\d|1\d\d|[1-9]?\d)(\.(25[0-5]|2[0-4]\d|1\d\d|[1-9]?\d)){3}))|:)))(%.+)?\s*$/ -exports['uri'] = /^[a-zA-Z][a-zA-Z0-9+-.]*:[^\s]*$/ -exports['color'] = /(#?([0-9A-Fa-f]{3,6})\b)|(aqua)|(black)|(blue)|(fuchsia)|(gray)|(green)|(lime)|(maroon)|(navy)|(olive)|(orange)|(purple)|(red)|(silver)|(teal)|(white)|(yellow)|(rgb\(\s*\b([0-9]|[1-9][0-9]|1[0-9][0-9]|2[0-4][0-9]|25[0-5])\b\s*,\s*\b([0-9]|[1-9][0-9]|1[0-9][0-9]|2[0-4][0-9]|25[0-5])\b\s*,\s*\b([0-9]|[1-9][0-9]|1[0-9][0-9]|2[0-4][0-9]|25[0-5])\b\s*\))|(rgb\(\s*(\d?\d%|100%)+\s*,\s*(\d?\d%|100%)+\s*,\s*(\d?\d%|100%)+\s*\))/ -exports['hostname'] = /^([a-zA-Z0-9]|[a-zA-Z0-9][a-zA-Z0-9\-]{0,61}[a-zA-Z0-9])(\.([a-zA-Z0-9]|[a-zA-Z0-9][a-zA-Z0-9\-]{0,61}[a-zA-Z0-9]))*$/ -exports['alpha'] = /^[a-zA-Z]+$/ -exports['alphanumeric'] = /^[a-zA-Z0-9]+$/ -exports['style'] = /\s*(.+?):\s*([^;]+);?/g -exports['phone'] = /^\+(?:[0-9] ?){6,14}[0-9]$/ -exports['utc-millisec'] = /^[0-9]{1,15}\.?[0-9]{0,15}$/ - -},{}],53:[function(require,module,exports){ -var genobj = require('generate-object-property') -var genfun = require('generate-function') -var jsonpointer = require('jsonpointer') -var xtend = require('xtend') -var formats = require('./formats') - -var get = function(obj, additionalSchemas, ptr) { - - var visit = function(sub) { - if (sub && sub.id === ptr) return sub - if (typeof sub !== 'object' || !sub) return null - return Object.keys(sub).reduce(function(res, k) { - return res || visit(sub[k]) - }, null) - } - - var res = visit(obj) - if (res) return res - - ptr = ptr.replace(/^#/, '') - ptr = ptr.replace(/\/$/, '') - - try { - return jsonpointer.get(obj, decodeURI(ptr)) - } catch (err) { - var end = ptr.indexOf('#') - var other - // external reference - if (end !== 0) { - // fragment doesn't exist. - if (end === -1) { - other = additionalSchemas[ptr] - } else { - var ext = ptr.slice(0, end) - other = additionalSchemas[ext] - var fragment = ptr.slice(end).replace(/^#/, '') - try { - return jsonpointer.get(other, fragment) - } catch (err) {} - } - } else { - other = additionalSchemas[ptr] - } - return other || null - } -} - -var formatName = function(field) { - field = JSON.stringify(field) - var pattern = /\[([^\[\]"]+)\]/ - while (pattern.test(field)) field = field.replace(pattern, '."+$1+"') - return field -} - -var types = {} - -types.any = function() { - return 'true' -} - -types.null = function(name) { - return name+' === null' -} - -types.boolean = function(name) { - return 'typeof '+name+' === "boolean"' -} - -types.array = function(name) { - return 'Array.isArray('+name+')' -} - -types.object = function(name) { - return 'typeof '+name+' === "object" && '+name+' && !Array.isArray('+name+')' -} - -types.number = function(name) { - return 'typeof '+name+' === "number"' -} - -types.integer = function(name) { - return 'typeof '+name+' === "number" && (Math.floor('+name+') === '+name+' || '+name+' > 9007199254740992 || '+name+' < -9007199254740992)' -} - -types.string = function(name) { - return 'typeof '+name+' === "string"' -} - -var unique = function(array) { - var list = [] - for (var i = 0; i < array.length; i++) { - list.push(typeof array[i] === 'object' ? JSON.stringify(array[i]) : array[i]) - } - for (var i = 1; i < list.length; i++) { - if (list.indexOf(list[i]) !== i) return false - } - return true -} - -var isMultipleOf = function(name, multipleOf) { - var res; - var factor = ((multipleOf | 0) !== multipleOf) ? Math.pow(10, multipleOf.toString().split('.').pop().length) : 1 - if (factor > 1) { - var factorName = ((name | 0) !== name) ? Math.pow(10, name.toString().split('.').pop().length) : 1 - if (factorName > factor) res = true - else res = Math.round(factor * name) % (factor * multipleOf) - } - else res = name % multipleOf; - return !res; -} - -var toType = function(node) { - return node.type -} - -var compile = function(schema, cache, root, reporter, opts) { - var fmts = opts ? xtend(formats, opts.formats) : formats - var scope = {unique:unique, formats:fmts, isMultipleOf:isMultipleOf} - var verbose = opts ? !!opts.verbose : false; - var greedy = opts && opts.greedy !== undefined ? - opts.greedy : false; - - var syms = {} - var gensym = function(name) { - return name+(syms[name] = (syms[name] || 0)+1) - } - - var reversePatterns = {} - var patterns = function(p) { - if (reversePatterns[p]) return reversePatterns[p] - var n = gensym('pattern') - scope[n] = new RegExp(p) - reversePatterns[p] = n - return n - } - - var vars = ['i','j','k','l','m','n','o','p','q','r','s','t','u','v','x','y','z'] - var genloop = function() { - var v = vars.shift() - vars.push(v+v[0]) - return v - } - - var visit = function(name, node, reporter, filter) { - var properties = node.properties - var type = node.type - var tuple = false - - if (Array.isArray(node.items)) { // tuple type - properties = {} - node.items.forEach(function(item, i) { - properties[i] = item - }) - type = 'array' - tuple = true - } - - var indent = 0 - var error = function(msg, prop, value) { - validate('errors++') - if (reporter === true) { - validate('if (validate.errors === null) validate.errors = []') - if (verbose) { - validate('validate.errors.push({field:%s,message:%s,value:%s,type:%s})', formatName(prop || name), JSON.stringify(msg), value || name, JSON.stringify(type)) - } else { - validate('validate.errors.push({field:%s,message:%s})', formatName(prop || name), JSON.stringify(msg)) - } - } - } - - if (node.required === true) { - indent++ - validate('if (%s === undefined) {', name) - error('is required') - validate('} else {') - } else { - indent++ - validate('if (%s !== undefined) {', name) - } - - var valid = [].concat(type) - .map(function(t) { - return types[t || 'any'](name) - }) - .join(' || ') || 'true' - - if (valid !== 'true') { - indent++ - validate('if (!(%s)) {', valid) - error('is the wrong type') - validate('} else {') - } - - if (tuple) { - if (node.additionalItems === false) { - validate('if (%s.length > %d) {', name, node.items.length) - error('has additional items') - validate('}') - } else if (node.additionalItems) { - var i = genloop() - validate('for (var %s = %d; %s < %s.length; %s++) {', i, node.items.length, i, name, i) - visit(name+'['+i+']', node.additionalItems, reporter, filter) - validate('}') - } - } - - if (node.format && fmts[node.format]) { - if (type !== 'string' && formats[node.format]) validate('if (%s) {', types.string(name)) - var n = gensym('format') - scope[n] = fmts[node.format] - - if (typeof scope[n] === 'function') validate('if (!%s(%s)) {', n, name) - else validate('if (!%s.test(%s)) {', n, name) - error('must be '+node.format+' format') - validate('}') - if (type !== 'string' && formats[node.format]) validate('}') - } - - if (Array.isArray(node.required)) { - var isUndefined = function(req) { - return genobj(name, req) + ' === undefined' - } - - var checkRequired = function (req) { - var prop = genobj(name, req); - validate('if (%s === undefined) {', prop) - error('is required', prop) - validate('missing++') - validate('}') - } - validate('if ((%s)) {', type !== 'object' ? types.object(name) : 'true') - validate('var missing = 0') - node.required.map(checkRequired) - validate('}'); - if (!greedy) { - validate('if (missing === 0) {') - indent++ - } - } - - if (node.uniqueItems) { - if (type !== 'array') validate('if (%s) {', types.array(name)) - validate('if (!(unique(%s))) {', name) - error('must be unique') - validate('}') - if (type !== 'array') validate('}') - } - - if (node.enum) { - var complex = node.enum.some(function(e) { - return typeof e === 'object' - }) - - var compare = complex ? - function(e) { - return 'JSON.stringify('+name+')'+' !== JSON.stringify('+JSON.stringify(e)+')' - } : - function(e) { - return name+' !== '+JSON.stringify(e) - } - - validate('if (%s) {', node.enum.map(compare).join(' && ') || 'false') - error('must be an enum value') - validate('}') - } - - if (node.dependencies) { - if (type !== 'object') validate('if (%s) {', types.object(name)) - - Object.keys(node.dependencies).forEach(function(key) { - var deps = node.dependencies[key] - if (typeof deps === 'string') deps = [deps] - - var exists = function(k) { - return genobj(name, k) + ' !== undefined' - } - - if (Array.isArray(deps)) { - validate('if (%s !== undefined && !(%s)) {', genobj(name, key), deps.map(exists).join(' && ') || 'true') - error('dependencies not set') - validate('}') - } - if (typeof deps === 'object') { - validate('if (%s !== undefined) {', genobj(name, key)) - visit(name, deps, reporter, filter) - validate('}') - } - }) - - if (type !== 'object') validate('}') - } - - if (node.additionalProperties || node.additionalProperties === false) { - if (type !== 'object') validate('if (%s) {', types.object(name)) - - var i = genloop() - var keys = gensym('keys') - - var toCompare = function(p) { - return keys+'['+i+'] !== '+JSON.stringify(p) - } - - var toTest = function(p) { - return '!'+patterns(p)+'.test('+keys+'['+i+'])' - } - - var additionalProp = Object.keys(properties || {}).map(toCompare) - .concat(Object.keys(node.patternProperties || {}).map(toTest)) - .join(' && ') || 'true' - - validate('var %s = Object.keys(%s)', keys, name) - ('for (var %s = 0; %s < %s.length; %s++) {', i, i, keys, i) - ('if (%s) {', additionalProp) - - if (node.additionalProperties === false) { - if (filter) validate('delete %s', name+'['+keys+'['+i+']]') - error('has additional properties', null, JSON.stringify(name+'.') + ' + ' + keys + '['+i+']') - } else { - visit(name+'['+keys+'['+i+']]', node.additionalProperties, reporter, filter) - } - - validate - ('}') - ('}') - - if (type !== 'object') validate('}') - } - - if (node.$ref) { - var sub = get(root, opts && opts.schemas || {}, node.$ref) - if (sub) { - var fn = cache[node.$ref] - if (!fn) { - cache[node.$ref] = function proxy(data) { - return fn(data) - } - fn = compile(sub, cache, root, false, opts) - } - var n = gensym('ref') - scope[n] = fn - validate('if (!(%s(%s))) {', n, name) - error('referenced schema does not match') - validate('}') - } - } - - if (node.not) { - var prev = gensym('prev') - validate('var %s = errors', prev) - visit(name, node.not, false, filter) - validate('if (%s === errors) {', prev) - error('negative schema matches') - validate('} else {') - ('errors = %s', prev) - ('}') - } - - if (node.items && !tuple) { - if (type !== 'array') validate('if (%s) {', types.array(name)) - - var i = genloop() - validate('for (var %s = 0; %s < %s.length; %s++) {', i, i, name, i) - visit(name+'['+i+']', node.items, reporter, filter) - validate('}') - - if (type !== 'array') validate('}') - } - - if (node.patternProperties) { - if (type !== 'object') validate('if (%s) {', types.object(name)) - var keys = gensym('keys') - var i = genloop() - validate - ('var %s = Object.keys(%s)', keys, name) - ('for (var %s = 0; %s < %s.length; %s++) {', i, i, keys, i) - - Object.keys(node.patternProperties).forEach(function(key) { - var p = patterns(key) - validate('if (%s.test(%s)) {', p, keys+'['+i+']') - visit(name+'['+keys+'['+i+']]', node.patternProperties[key], reporter, filter) - validate('}') - }) - - validate('}') - if (type !== 'object') validate('}') - } - - if (node.pattern) { - var p = patterns(node.pattern) - if (type !== 'string') validate('if (%s) {', types.string(name)) - validate('if (!(%s.test(%s))) {', p, name) - error('pattern mismatch') - validate('}') - if (type !== 'string') validate('}') - } - - if (node.allOf) { - node.allOf.forEach(function(sch) { - visit(name, sch, reporter, filter) - }) - } - - if (node.anyOf && node.anyOf.length) { - var prev = gensym('prev') - - node.anyOf.forEach(function(sch, i) { - if (i === 0) { - validate('var %s = errors', prev) - } else { - validate('if (errors !== %s) {', prev) - ('errors = %s', prev) - } - visit(name, sch, false, false) - }) - node.anyOf.forEach(function(sch, i) { - if (i) validate('}') - }) - validate('if (%s !== errors) {', prev) - error('no schemas match') - validate('}') - } - - if (node.oneOf && node.oneOf.length) { - var prev = gensym('prev') - var passes = gensym('passes') - - validate - ('var %s = errors', prev) - ('var %s = 0', passes) - - node.oneOf.forEach(function(sch, i) { - visit(name, sch, false, false) - validate('if (%s === errors) {', prev) - ('%s++', passes) - ('} else {') - ('errors = %s', prev) - ('}') - }) - - validate('if (%s !== 1) {', passes) - error('no (or more than one) schemas match') - validate('}') - } - - if (node.multipleOf !== undefined) { - if (type !== 'number' && type !== 'integer') validate('if (%s) {', types.number(name)) - - validate('if (!isMultipleOf(%s, %d)) {', name, node.multipleOf) - - error('has a remainder') - validate('}') - - if (type !== 'number' && type !== 'integer') validate('}') - } - - if (node.maxProperties !== undefined) { - if (type !== 'object') validate('if (%s) {', types.object(name)) - - validate('if (Object.keys(%s).length > %d) {', name, node.maxProperties) - error('has more properties than allowed') - validate('}') - - if (type !== 'object') validate('}') - } - - if (node.minProperties !== undefined) { - if (type !== 'object') validate('if (%s) {', types.object(name)) - - validate('if (Object.keys(%s).length < %d) {', name, node.minProperties) - error('has less properties than allowed') - validate('}') - - if (type !== 'object') validate('}') - } - - if (node.maxItems !== undefined) { - if (type !== 'array') validate('if (%s) {', types.array(name)) - - validate('if (%s.length > %d) {', name, node.maxItems) - error('has more items than allowed') - validate('}') - - if (type !== 'array') validate('}') - } - - if (node.minItems !== undefined) { - if (type !== 'array') validate('if (%s) {', types.array(name)) - - validate('if (%s.length < %d) {', name, node.minItems) - error('has less items than allowed') - validate('}') - - if (type !== 'array') validate('}') - } - - if (node.maxLength !== undefined) { - if (type !== 'string') validate('if (%s) {', types.string(name)) - - validate('if (%s.length > %d) {', name, node.maxLength) - error('has longer length than allowed') - validate('}') - - if (type !== 'string') validate('}') - } - - if (node.minLength !== undefined) { - if (type !== 'string') validate('if (%s) {', types.string(name)) - - validate('if (%s.length < %d) {', name, node.minLength) - error('has less length than allowed') - validate('}') - - if (type !== 'string') validate('}') - } - - if (node.minimum !== undefined) { - validate('if (%s %s %d) {', name, node.exclusiveMinimum ? '<=' : '<', node.minimum) - error('is less than minimum') - validate('}') - } - - if (node.maximum !== undefined) { - validate('if (%s %s %d) {', name, node.exclusiveMaximum ? '>=' : '>', node.maximum) - error('is more than maximum') - validate('}') - } - - if (properties) { - Object.keys(properties).forEach(function(p) { - if (Array.isArray(type) && type.indexOf('null') !== -1) validate('if (%s !== null) {', name) - - visit(genobj(name, p), properties[p], reporter, filter) - - if (Array.isArray(type) && type.indexOf('null') !== -1) validate('}') - }) - } - - while (indent--) validate('}') - } - - var validate = genfun - ('function validate(data) {') - ('validate.errors = null') - ('var errors = 0') - - visit('data', schema, reporter, opts && opts.filter) - - validate - ('return errors === 0') - ('}') - - validate = validate.toFunction(scope) - validate.errors = null - - if (Object.defineProperty) { - Object.defineProperty(validate, 'error', { - get: function() { - if (!validate.errors) return '' - return validate.errors.map(function(err) { - return err.field + ' ' + err.message; - }).join('\n') - } - }) - } - - validate.toJSON = function() { - return schema - } - - return validate -} - -module.exports = function(schema, opts) { - if (typeof schema === 'string') schema = JSON.parse(schema) - return compile(schema, {}, schema, true, opts) -} - -module.exports.filter = function(schema, opts) { - var validate = module.exports(schema, xtend(opts, {filter: true})) - return function(sch) { - validate(sch) - return sch - } -} - -},{"./formats":52,"generate-function":24,"generate-object-property":25,"jsonpointer":67,"xtend":136}],54:[function(require,module,exports){ -"use strict" -function isProperty(str) { - return 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-} -module.exports = isProperty -},{}],55:[function(require,module,exports){ -module.exports = isTypedArray -isTypedArray.strict = isStrictTypedArray -isTypedArray.loose = isLooseTypedArray - -var toString = Object.prototype.toString -var names = { - '[object Int8Array]': true - , '[object Int16Array]': true - , '[object Int32Array]': true - , '[object Uint8Array]': true - , '[object Uint8ClampedArray]': true - , '[object Uint16Array]': true - , '[object Uint32Array]': true - , '[object Float32Array]': true - , '[object Float64Array]': true -} - -function isTypedArray(arr) { - return ( - isStrictTypedArray(arr) - || isLooseTypedArray(arr) - ) -} - -function isStrictTypedArray(arr) { - return ( - arr instanceof Int8Array - || arr instanceof Int16Array - || arr instanceof Int32Array - || arr instanceof Uint8Array - || arr instanceof Uint8ClampedArray - || arr instanceof Uint16Array - || arr instanceof Uint32Array - || arr instanceof Float32Array - || arr instanceof Float64Array - ) -} - -function isLooseTypedArray(arr) { - return names[toString.call(arr)] -} - -},{}],56:[function(require,module,exports){ -var toString = {}.toString; - -module.exports = Array.isArray || function (arr) { - return toString.call(arr) == '[object Array]'; -}; - -},{}],57:[function(require,module,exports){ -var stream = require('stream') - - -function isStream (obj) { - return obj instanceof stream.Stream -} - - -function isReadable (obj) { - return isStream(obj) && typeof obj._read == 'function' && typeof obj._readableState == 'object' -} - - -function isWritable (obj) { - return isStream(obj) && typeof obj._write == 'function' && typeof obj._writableState == 'object' -} - - -function isDuplex (obj) { - return isReadable(obj) && isWritable(obj) -} - - -module.exports = isStream -module.exports.isReadable = isReadable -module.exports.isWritable = isWritable -module.exports.isDuplex = isDuplex - -},{"stream":287}],58:[function(require,module,exports){ -"use strict"; - -/* - * Copyright (c) 2014 Mega Limited - * under the MIT License. - * - * Authors: Guy K. Kloss - * - * You should have received a copy of the license along with this program. - */ - -var dh = require('./lib/dh'); -var eddsa = require('./lib/eddsa'); -var curve255 = require('./lib/curve255'); -var utils = require('./lib/utils'); - - /** - * @exports jodid25519 - * Curve 25519-based cryptography collection. - * - * @description - * EC Diffie-Hellman (ECDH) based on Curve25519 and digital signatures - * (EdDSA) based on Ed25519. - */ - var ns = {}; - - /** Module version indicator as string (format: [major.minor.patch]). */ - ns.VERSION = '0.7.1'; - - ns.dh = dh; - ns.eddsa = eddsa; - ns.curve255 = curve255; - ns.utils = utils; - -module.exports = ns; - -},{"./lib/curve255":60,"./lib/dh":61,"./lib/eddsa":62,"./lib/utils":63}],59:[function(require,module,exports){ -"use strict"; -/** - * @fileOverview - * Core operations on curve 25519 required for the higher level modules. - */ - -/* - * Copyright (c) 2007, 2013, 2014 Michele Bini - * Copyright (c) 2014 Mega Limited - * under the MIT License. - * - * Authors: Guy K. Kloss, Michele Bini - * - * You should have received a copy of the license along with this program. - */ - -var crypto = require('crypto'); - - /** - * @exports jodid25519/core - * Core operations on curve 25519 required for the higher level modules. - * - * @description - * Core operations on curve 25519 required for the higher level modules. - * - *

- * This core code is extracted from Michele Bini's curve255.js implementation, - * which is used as a base for Curve25519 ECDH and Ed25519 EdDSA operations. - *

- */ - var ns = {}; - - function _setbit(n, c, v) { - var i = c >> 4; - var a = n[i]; - a = a + (1 << (c & 0xf)) * v; - n[i] = a; - } - - function _getbit(n, c) { - return (n[c >> 4] >> (c & 0xf)) & 1; - } - - function _ZERO() { - return [0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0]; - } - - function _ONE() { - return [1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0]; - } - - // Basepoint. - function _BASE() { - return [9, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0]; - } - - // return -1, 0, +1 when a is less than, equal, or greater than b - function _bigintcmp(a, b) { - // The following code is a bit tricky to avoid code branching - var c, abs_r, mask; - var r = 0; - for (c = 15; c >= 0; c--) { - var x = a[c]; - var y = b[c]; - r = r + (x - y) * (1 - r * r); - // http://graphics.stanford.edu/~seander/bithacks.html#IntegerAbs - // correct for [-294967295, 294967295] - mask = r >> 31; - abs_r = (r + mask) ^ mask; - // http://stackoverflow.com/questions/596467/how-do-i-convert-a-number-to-an-integer-in-javascript - // this rounds towards zero - r = ~~((r << 1) / (abs_r + 1)); - } - return r; - } - - function _bigintadd(a, b) { - var r = []; - var v; - r[0] = (v = a[0] + b[0]) & 0xffff; - r[1] = (v = (v >>> 16) + a[1] + b[1]) & 0xffff; - r[2] = (v = (v >>> 16) + a[2] + b[2]) & 0xffff; - r[3] = (v = (v >>> 16) + a[3] + b[3]) & 0xffff; - r[4] = (v = (v >>> 16) + a[4] + b[4]) & 0xffff; - r[5] = (v = (v >>> 16) + a[5] + b[5]) & 0xffff; - r[6] = (v = (v >>> 16) + a[6] + b[6]) & 0xffff; - r[7] = (v = (v >>> 16) + a[7] + b[7]) & 0xffff; - r[8] = (v = (v >>> 16) + a[8] + b[8]) & 0xffff; - r[9] = (v = (v >>> 16) + a[9] + b[9]) & 0xffff; - r[10] = (v = (v >>> 16) + a[10] + b[10]) & 0xffff; - r[11] = (v = (v >>> 16) + a[11] + b[11]) & 0xffff; - r[12] = (v = (v >>> 16) + a[12] + b[12]) & 0xffff; - r[13] = (v = (v >>> 16) + a[13] + b[13]) & 0xffff; - r[14] = (v = (v >>> 16) + a[14] + b[14]) & 0xffff; - r[15] = (v >>> 16) + a[15] + b[15]; - return r; - } - - function _bigintsub(a, b) { - var r = []; - var v; - r[0] = (v = 0x80000 + a[0] - b[0]) & 0xffff; - r[1] = (v = (v >>> 16) + 0x7fff8 + a[1] - b[1]) & 0xffff; - r[2] = (v = (v >>> 16) + 0x7fff8 + a[2] - b[2]) & 0xffff; - r[3] = (v = (v >>> 16) + 0x7fff8 + a[3] - b[3]) & 0xffff; - r[4] = (v = (v >>> 16) + 0x7fff8 + a[4] - b[4]) & 0xffff; - r[5] = (v = (v >>> 16) + 0x7fff8 + a[5] - b[5]) & 0xffff; - r[6] = (v = (v >>> 16) + 0x7fff8 + a[6] - b[6]) & 0xffff; - r[7] = (v = (v >>> 16) + 0x7fff8 + a[7] - b[7]) & 0xffff; - r[8] = (v = (v >>> 16) + 0x7fff8 + a[8] - b[8]) & 0xffff; - r[9] = (v = (v >>> 16) + 0x7fff8 + a[9] - b[9]) & 0xffff; - r[10] = (v = (v >>> 16) + 0x7fff8 + a[10] - b[10]) & 0xffff; - r[11] = (v = (v >>> 16) + 0x7fff8 + a[11] - b[11]) & 0xffff; - r[12] = (v = (v >>> 16) + 0x7fff8 + a[12] - b[12]) & 0xffff; - r[13] = (v = (v >>> 16) + 0x7fff8 + a[13] - b[13]) & 0xffff; - r[14] = (v = (v >>> 16) + 0x7fff8 + a[14] - b[14]) & 0xffff; - r[15] = (v >>> 16) - 8 + a[15] - b[15]; - return r; - } - - function _sqr8h(a7, a6, a5, a4, a3, a2, a1, a0) { - // 'division by 0x10000' can not be replaced by '>> 16' because - // more than 32 bits of precision are needed similarly - // 'multiplication by 2' cannot be replaced by '<< 1' - var r = []; - var v; - r[0] = (v = a0 * a0) & 0xffff; - r[1] = (v = (0 | (v / 0x10000)) + 2 * a0 * a1) & 0xffff; - r[2] = (v = (0 | (v / 0x10000)) + 2 * a0 * a2 + a1 * a1) & 0xffff; - r[3] = (v = (0 | (v / 0x10000)) + 2 * a0 * a3 + 2 * a1 * a2) & 0xffff; - r[4] = (v = (0 | (v / 0x10000)) + 2 * a0 * a4 + 2 * a1 * a3 + a2 - * a2) & 0xffff; - r[5] = (v = (0 | (v / 0x10000)) + 2 * a0 * a5 + 2 * a1 * a4 + 2 - * a2 * a3) & 0xffff; - r[6] = (v = (0 | (v / 0x10000)) + 2 * a0 * a6 + 2 * a1 * a5 + 2 - * a2 * a4 + a3 * a3) & 0xffff; - r[7] = (v = (0 | (v / 0x10000)) + 2 * a0 * a7 + 2 * a1 * a6 + 2 - * a2 * a5 + 2 * a3 * a4) & 0xffff; - r[8] = (v = (0 | (v / 0x10000)) + 2 * a1 * a7 + 2 * a2 * a6 + 2 - * a3 * a5 + a4 * a4) & 0xffff; - r[9] = (v = (0 | (v / 0x10000)) + 2 * a2 * a7 + 2 * a3 * a6 + 2 - * a4 * a5) & 0xffff; - r[10] = (v = (0 | (v / 0x10000)) + 2 * a3 * a7 + 2 * a4 * a6 - + a5 * a5) & 0xffff; - r[11] = (v = (0 | (v / 0x10000)) + 2 * a4 * a7 + 2 * a5 * a6) & 0xffff; - r[12] = (v = (0 | (v / 0x10000)) + 2 * a5 * a7 + a6 * a6) & 0xffff; - r[13] = (v = (0 | (v / 0x10000)) + 2 * a6 * a7) & 0xffff; - r[14] = (v = (0 | (v / 0x10000)) + a7 * a7) & 0xffff; - r[15] = 0 | (v / 0x10000); - return r; - } - - function _sqrmodp(a) { - var x = _sqr8h(a[15], a[14], a[13], a[12], a[11], a[10], a[9], - a[8]); - var z = _sqr8h(a[7], a[6], a[5], a[4], a[3], a[2], a[1], a[0]); - var y = _sqr8h(a[15] + a[7], a[14] + a[6], a[13] + a[5], a[12] - + a[4], - a[11] + a[3], a[10] + a[2], a[9] + a[1], a[8] - + a[0]); - var r = []; - var v; - r[0] = (v = 0x800000 + z[0] + (y[8] - x[8] - z[8] + x[0] - 0x80) - * 38) & 0xffff; - r[1] = (v = 0x7fff80 + (v >>> 16) + z[1] - + (y[9] - x[9] - z[9] + x[1]) * 38) & 0xffff; - r[2] = (v = 0x7fff80 + (v >>> 16) + z[2] - + (y[10] - x[10] - z[10] + x[2]) * 38) & 0xffff; - r[3] = (v = 0x7fff80 + (v >>> 16) + z[3] - + (y[11] - x[11] - z[11] + x[3]) * 38) & 0xffff; - r[4] = (v = 0x7fff80 + (v >>> 16) + z[4] - + (y[12] - x[12] - z[12] + x[4]) * 38) & 0xffff; - r[5] = (v = 0x7fff80 + (v >>> 16) + z[5] - + (y[13] - x[13] - z[13] + x[5]) * 38) & 0xffff; - r[6] = (v = 0x7fff80 + (v >>> 16) + z[6] - + (y[14] - x[14] - z[14] + x[6]) * 38) & 0xffff; - r[7] = (v = 0x7fff80 + (v >>> 16) + z[7] - + (y[15] - x[15] - z[15] + x[7]) * 38) & 0xffff; - r[8] = (v = 0x7fff80 + (v >>> 16) + z[8] + y[0] - x[0] - z[0] - + x[8] * 38) & 0xffff; - r[9] = (v = 0x7fff80 + (v >>> 16) + z[9] + y[1] - x[1] - z[1] - + x[9] * 38) & 0xffff; - r[10] = (v = 0x7fff80 + (v >>> 16) + z[10] + y[2] - x[2] - z[2] - + x[10] * 38) & 0xffff; - r[11] = (v = 0x7fff80 + (v >>> 16) + z[11] + y[3] - x[3] - z[3] - + x[11] * 38) & 0xffff; - r[12] = (v = 0x7fff80 + (v >>> 16) + z[12] + y[4] - x[4] - z[4] - + x[12] * 38) & 0xffff; - r[13] = (v = 0x7fff80 + (v >>> 16) + z[13] + y[5] - x[5] - z[5] - + x[13] * 38) & 0xffff; - r[14] = (v = 0x7fff80 + (v >>> 16) + z[14] + y[6] - x[6] - z[6] - + x[14] * 38) & 0xffff; - r[15] = 0x7fff80 + (v >>> 16) + z[15] + y[7] - x[7] - z[7] - + x[15] * 38; - _reduce(r); - return r; - } - - function _mul8h(a7, a6, a5, a4, a3, a2, a1, a0, b7, b6, b5, b4, b3, - b2, b1, b0) { - // 'division by 0x10000' can not be replaced by '>> 16' because - // more than 32 bits of precision are needed - var r = []; - var v; - r[0] = (v = a0 * b0) & 0xffff; - r[1] = (v = (0 | (v / 0x10000)) + a0 * b1 + a1 * b0) & 0xffff; - r[2] = (v = (0 | (v / 0x10000)) + a0 * b2 + a1 * b1 + a2 * b0) & 0xffff; - r[3] = (v = (0 | (v / 0x10000)) + a0 * b3 + a1 * b2 + a2 * b1 - + a3 * b0) & 0xffff; - r[4] = (v = (0 | (v / 0x10000)) + a0 * b4 + a1 * b3 + a2 * b2 - + a3 * b1 + a4 * b0) & 0xffff; - r[5] = (v = (0 | (v / 0x10000)) + a0 * b5 + a1 * b4 + a2 * b3 - + a3 * b2 + a4 * b1 + a5 * b0) & 0xffff; - r[6] = (v = (0 | (v / 0x10000)) + a0 * b6 + a1 * b5 + a2 * b4 - + a3 * b3 + a4 * b2 + a5 * b1 + a6 * b0) & 0xffff; - r[7] = (v = (0 | (v / 0x10000)) + a0 * b7 + a1 * b6 + a2 * b5 - + a3 * b4 + a4 * b3 + a5 * b2 + a6 * b1 + a7 * b0) & 0xffff; - r[8] = (v = (0 | (v / 0x10000)) + a1 * b7 + a2 * b6 + a3 * b5 - + a4 * b4 + a5 * b3 + a6 * b2 + a7 * b1) & 0xffff; - r[9] = (v = (0 | (v / 0x10000)) + a2 * b7 + a3 * b6 + a4 * b5 - + a5 * b4 + a6 * b3 + a7 * b2) & 0xffff; - r[10] = (v = (0 | (v / 0x10000)) + a3 * b7 + a4 * b6 + a5 * b5 - + a6 * b4 + a7 * b3) & 0xffff; - r[11] = (v = (0 | (v / 0x10000)) + a4 * b7 + a5 * b6 + a6 * b5 - + a7 * b4) & 0xffff; - r[12] = (v = (0 | (v / 0x10000)) + a5 * b7 + a6 * b6 + a7 * b5) & 0xffff; - r[13] = (v = (0 | (v / 0x10000)) + a6 * b7 + a7 * b6) & 0xffff; - r[14] = (v = (0 | (v / 0x10000)) + a7 * b7) & 0xffff; - r[15] = (0 | (v / 0x10000)); - return r; - } - - function _mulmodp(a, b) { - // Karatsuba multiplication scheme: x*y = (b^2+b)*x1*y1 - - // b*(x1-x0)*(y1-y0) + (b+1)*x0*y0 - var x = _mul8h(a[15], a[14], a[13], a[12], a[11], a[10], a[9], - a[8], b[15], b[14], b[13], b[12], b[11], b[10], - b[9], b[8]); - var z = _mul8h(a[7], a[6], a[5], a[4], a[3], a[2], a[1], a[0], - b[7], b[6], b[5], b[4], b[3], b[2], b[1], b[0]); - var y = _mul8h(a[15] + a[7], a[14] + a[6], a[13] + a[5], a[12] - + a[4], - a[11] + a[3], a[10] + a[2], a[9] + a[1], a[8] - + a[0], - b[15] + b[7], b[14] + b[6], b[13] + b[5], b[12] - + b[4], - b[11] + b[3], b[10] + b[2], b[9] + b[1], b[8] - + b[0]); - var r = []; - var v; - r[0] = (v = 0x800000 + z[0] + (y[8] - x[8] - z[8] + x[0] - 0x80) - * 38) & 0xffff; - r[1] = (v = 0x7fff80 + (v >>> 16) + z[1] - + (y[9] - x[9] - z[9] + x[1]) * 38) & 0xffff; - r[2] = (v = 0x7fff80 + (v >>> 16) + z[2] - + (y[10] - x[10] - z[10] + x[2]) * 38) & 0xffff; - r[3] = (v = 0x7fff80 + (v >>> 16) + z[3] - + (y[11] - x[11] - z[11] + x[3]) * 38) & 0xffff; - r[4] = (v = 0x7fff80 + (v >>> 16) + z[4] - + (y[12] - x[12] - z[12] + x[4]) * 38) & 0xffff; - r[5] = (v = 0x7fff80 + (v >>> 16) + z[5] - + (y[13] - x[13] - z[13] + x[5]) * 38) & 0xffff; - r[6] = (v = 0x7fff80 + (v >>> 16) + z[6] - + (y[14] - x[14] - z[14] + x[6]) * 38) & 0xffff; - r[7] = (v = 0x7fff80 + (v >>> 16) + z[7] - + (y[15] - x[15] - z[15] + x[7]) * 38) & 0xffff; - r[8] = (v = 0x7fff80 + (v >>> 16) + z[8] + y[0] - x[0] - z[0] - + x[8] * 38) & 0xffff; - r[9] = (v = 0x7fff80 + (v >>> 16) + z[9] + y[1] - x[1] - z[1] - + x[9] * 38) & 0xffff; - r[10] = (v = 0x7fff80 + (v >>> 16) + z[10] + y[2] - x[2] - z[2] - + x[10] * 38) & 0xffff; - r[11] = (v = 0x7fff80 + (v >>> 16) + z[11] + y[3] - x[3] - z[3] - + x[11] * 38) & 0xffff; - r[12] = (v = 0x7fff80 + (v >>> 16) + z[12] + y[4] - x[4] - z[4] - + x[12] * 38) & 0xffff; - r[13] = (v = 0x7fff80 + (v >>> 16) + z[13] + y[5] - x[5] - z[5] - + x[13] * 38) & 0xffff; - r[14] = (v = 0x7fff80 + (v >>> 16) + z[14] + y[6] - x[6] - z[6] - + x[14] * 38) & 0xffff; - r[15] = 0x7fff80 + (v >>> 16) + z[15] + y[7] - x[7] - z[7] - + x[15] * 38; - _reduce(r); - return r; - } - - function _reduce(arr) { - var aCopy = arr.slice(0); - var choice = [arr, aCopy]; - var v = arr[15]; - // Use the dummy copy instead of just returning to be more constant time. - var a = choice[(v < 0x8000) & 1]; - a[15] = v & 0x7fff; - // >32-bits of precision are required here so '/ 0x8000' can not be - // replaced by the arithmetic equivalent '>>> 15' - v = (0 | (v / 0x8000)) * 19; - a[0] = (v += a[0]) & 0xffff; - v = v >>> 16; - a[1] = (v += a[1]) & 0xffff; - v = v >>> 16; - a[2] = (v += a[2]) & 0xffff; - v = v >>> 16; - a[3] = (v += a[3]) & 0xffff; - v = v >>> 16; - a[4] = (v += a[4]) & 0xffff; - v = v >>> 16; - a[5] = (v += a[5]) & 0xffff; - v = v >>> 16; - a[6] = (v += a[6]) & 0xffff; - v = v >>> 16; - a[7] = (v += a[7]) & 0xffff; - v = v >>> 16; - a[8] = (v += a[8]) & 0xffff; - v = v >>> 16; - a[9] = (v += a[9]) & 0xffff; - v = v >>> 16; - a[10] = (v += a[10]) & 0xffff; - v = v >>> 16; - a[11] = (v += a[11]) & 0xffff; - v = v >>> 16; - a[12] = (v += a[12]) & 0xffff; - v = v >>> 16; - a[13] = (v += a[13]) & 0xffff; - v = v >>> 16; - a[14] = (v += a[14]) & 0xffff; - v = v >>> 16; - a[15] += v; - } - - function _addmodp(a, b) { - var r = []; - var v; - r[0] = (v = ((0 | (a[15] >>> 15)) + (0 | (b[15] >>> 15))) * 19 - + a[0] + b[0]) & 0xffff; - r[1] = (v = (v >>> 16) + a[1] + b[1]) & 0xffff; - r[2] = (v = (v >>> 16) + a[2] + b[2]) & 0xffff; - r[3] = (v = (v >>> 16) + a[3] + b[3]) & 0xffff; - r[4] = (v = (v >>> 16) + a[4] + b[4]) & 0xffff; - r[5] = (v = (v >>> 16) + a[5] + b[5]) & 0xffff; - r[6] = (v = (v >>> 16) + a[6] + b[6]) & 0xffff; - r[7] = (v = (v >>> 16) + a[7] + b[7]) & 0xffff; - r[8] = (v = (v >>> 16) + a[8] + b[8]) & 0xffff; - r[9] = (v = (v >>> 16) + a[9] + b[9]) & 0xffff; - r[10] = (v = (v >>> 16) + a[10] + b[10]) & 0xffff; - r[11] = (v = (v >>> 16) + a[11] + b[11]) & 0xffff; - r[12] = (v = (v >>> 16) + a[12] + b[12]) & 0xffff; - r[13] = (v = (v >>> 16) + a[13] + b[13]) & 0xffff; - r[14] = (v = (v >>> 16) + a[14] + b[14]) & 0xffff; - r[15] = (v >>> 16) + (a[15] & 0x7fff) + (b[15] & 0x7fff); - return r; - } - - function _submodp(a, b) { - var r = []; - var v; - r[0] = (v = 0x80000 - + ((0 | (a[15] >>> 15)) - (0 | (b[15] >>> 15)) - 1) - * 19 + a[0] - b[0]) & 0xffff; - r[1] = (v = (v >>> 16) + 0x7fff8 + a[1] - b[1]) & 0xffff; - r[2] = (v = (v >>> 16) + 0x7fff8 + a[2] - b[2]) & 0xffff; - r[3] = (v = (v >>> 16) + 0x7fff8 + a[3] - b[3]) & 0xffff; - r[4] = (v = (v >>> 16) + 0x7fff8 + a[4] - b[4]) & 0xffff; - r[5] = (v = (v >>> 16) + 0x7fff8 + a[5] - b[5]) & 0xffff; - r[6] = (v = (v >>> 16) + 0x7fff8 + a[6] - b[6]) & 0xffff; - r[7] = (v = (v >>> 16) + 0x7fff8 + a[7] - b[7]) & 0xffff; - r[8] = (v = (v >>> 16) + 0x7fff8 + a[8] - b[8]) & 0xffff; - r[9] = (v = (v >>> 16) + 0x7fff8 + a[9] - b[9]) & 0xffff; - r[10] = (v = (v >>> 16) + 0x7fff8 + a[10] - b[10]) & 0xffff; - r[11] = (v = (v >>> 16) + 0x7fff8 + a[11] - b[11]) & 0xffff; - r[12] = (v = (v >>> 16) + 0x7fff8 + a[12] - b[12]) & 0xffff; - r[13] = (v = (v >>> 16) + 0x7fff8 + a[13] - b[13]) & 0xffff; - r[14] = (v = (v >>> 16) + 0x7fff8 + a[14] - b[14]) & 0xffff; - r[15] = (v >>> 16) + 0x7ff8 + (a[15] & 0x7fff) - - (b[15] & 0x7fff); - return r; - } - - function _invmodp(a) { - var c = a; - var i = 250; - while (--i) { - a = _sqrmodp(a); - a = _mulmodp(a, c); - } - a = _sqrmodp(a); - a = _sqrmodp(a); - a = _mulmodp(a, c); - a = _sqrmodp(a); - a = _sqrmodp(a); - a = _mulmodp(a, c); - a = _sqrmodp(a); - a = _mulmodp(a, c); - return a; - } - - function _mulasmall(a) { - // 'division by 0x10000' can not be replaced by '>> 16' because - // more than 32 bits of precision are needed - var m = 121665; - var r = []; - var v; - r[0] = (v = a[0] * m) & 0xffff; - r[1] = (v = (0 | (v / 0x10000)) + a[1] * m) & 0xffff; - r[2] = (v = (0 | (v / 0x10000)) + a[2] * m) & 0xffff; - r[3] = (v = (0 | (v / 0x10000)) + a[3] * m) & 0xffff; - r[4] = (v = (0 | (v / 0x10000)) + a[4] * m) & 0xffff; - r[5] = (v = (0 | (v / 0x10000)) + a[5] * m) & 0xffff; - r[6] = (v = (0 | (v / 0x10000)) + a[6] * m) & 0xffff; - r[7] = (v = (0 | (v / 0x10000)) + a[7] * m) & 0xffff; - r[8] = (v = (0 | (v / 0x10000)) + a[8] * m) & 0xffff; - r[9] = (v = (0 | (v / 0x10000)) + a[9] * m) & 0xffff; - r[10] = (v = (0 | (v / 0x10000)) + a[10] * m) & 0xffff; - r[11] = (v = (0 | (v / 0x10000)) + a[11] * m) & 0xffff; - r[12] = (v = (0 | (v / 0x10000)) + a[12] * m) & 0xffff; - r[13] = (v = (0 | (v / 0x10000)) + a[13] * m) & 0xffff; - r[14] = (v = (0 | (v / 0x10000)) + a[14] * m) & 0xffff; - r[15] = (0 | (v / 0x10000)) + a[15] * m; - _reduce(r); - return r; - } - - function _dbl(x, z) { - var x_2, z_2, m, n, o; - m = _sqrmodp(_addmodp(x, z)); - n = _sqrmodp(_submodp(x, z)); - o = _submodp(m, n); - x_2 = _mulmodp(n, m); - z_2 = _mulmodp(_addmodp(_mulasmall(o), m), o); - return [x_2, z_2]; - } - - function _sum(x, z, x_p, z_p, x_1) { - var x_3, z_3, p, q; - p = _mulmodp(_submodp(x, z), _addmodp(x_p, z_p)); - q = _mulmodp(_addmodp(x, z), _submodp(x_p, z_p)); - x_3 = _sqrmodp(_addmodp(p, q)); - z_3 = _mulmodp(_sqrmodp(_submodp(p, q)), x_1); - return [x_3, z_3]; - } - - function _generateKey(curve25519) { - var buffer = crypto.randomBytes(32); - - // For Curve25519 DH keys, we need to apply some bit mask on generated - // keys: - // * clear bit 0, 1, 2 of first byte - // * clear bit 7 of last byte - // * set bit 6 of last byte - if (curve25519 === true) { - buffer[0] &= 0xf8; - buffer[31] = (buffer[31] & 0x7f) | 0x40; - } - var result = []; - for (var i = 0; i < buffer.length; i++) { - result.push(String.fromCharCode(buffer[i])); - } - return result.join(''); - } - - // Expose some functions to the outside through this name space. - // Note: This is not part of the public API. - ns.getbit = _getbit; - ns.setbit = _setbit; - ns.addmodp = _addmodp; - ns.invmodp = _invmodp; - ns.mulmodp = _mulmodp; - ns.reduce = _reduce; - ns.dbl = _dbl; - ns.sum = _sum; - ns.ZERO = _ZERO; - ns.ONE = _ONE; - ns.BASE = _BASE; - ns.bigintadd = _bigintadd; - ns.bigintsub = _bigintsub; - ns.bigintcmp = _bigintcmp; - ns.mulmodp = _mulmodp; - ns.sqrmodp = _sqrmodp; - ns.generateKey = _generateKey; - - -module.exports = ns; - -},{"crypto":194}],60:[function(require,module,exports){ -"use strict"; -/** - * @fileOverview - * Core operations on curve 25519 required for the higher level modules. - */ - -/* - * Copyright (c) 2007, 2013, 2014 Michele Bini - * Copyright (c) 2014 Mega Limited - * under the MIT License. - * - * Authors: Guy K. Kloss, Michele Bini - * - * You should have received a copy of the license along with this program. - */ - -var core = require('./core'); -var utils = require('./utils'); - - /** - * @exports jodid25519/curve255 - * Legacy compatibility module for Michele Bini's previous curve255.js. - * - * @description - * Legacy compatibility module for Michele Bini's previous curve255.js. - * - *

- * This code presents an API with all key formats as previously available - * from Michele Bini's curve255.js implementation. - *

- */ - var ns = {}; - - function curve25519_raw(f, c) { - var a, x_1, q; - - x_1 = c; - a = core.dbl(x_1, core.ONE()); - q = [x_1, core.ONE()]; - - var n = 255; - - while (core.getbit(f, n) == 0) { - n--; - // For correct constant-time operation, bit 255 should always be - // set to 1 so the following 'while' loop is never entered. - if (n < 0) { - return core.ZERO(); - } - } - n--; - - var aq = [a, q]; - - while (n >= 0) { - var r, s; - var b = core.getbit(f, n); - r = core.sum(aq[0][0], aq[0][1], aq[1][0], aq[1][1], x_1); - s = core.dbl(aq[1 - b][0], aq[1 - b][1]); - aq[1 - b] = s; - aq[b] = r; - n--; - } - q = aq[1]; - - q[1] = core.invmodp(q[1]); - q[0] = core.mulmodp(q[0], q[1]); - core.reduce(q[0]); - return q[0]; - } - - function curve25519b32(a, b) { - return _base32encode(curve25519(_base32decode(a), - _base32decode(b))); - } - - function curve25519(f, c) { - if (!c) { - c = core.BASE(); - } - f[0] &= 0xFFF8; - f[15] = (f[15] & 0x7FFF) | 0x4000; - return curve25519_raw(f, c); - } - - function _hexEncodeVector(k) { - var hexKey = utils.hexEncode(k); - // Pad with '0' at the front. - hexKey = new Array(64 + 1 - hexKey.length).join('0') + hexKey; - // Invert bytes. - return hexKey.split(/(..)/).reverse().join(''); - } - - function _hexDecodeVector(v) { - // assert(length(x) == 64); - // Invert bytes. - var hexKey = v.split(/(..)/).reverse().join(''); - return utils.hexDecode(hexKey); - } - - - // Expose some functions to the outside through this name space. - - /** - * Computes the scalar product of a point on the curve 25519. - * - * This function is used for the DH key-exchange protocol. - * - * Before multiplication, some bit operations are applied to the - * private key to ensure it is a valid Curve25519 secret key. - * It is the user's responsibility to make sure that the private - * key is a uniformly random, secret value. - * - * @function - * @param f {array} - * Private key. - * @param c {array} - * Public point on the curve. If not given, the curve's base point is used. - * @returns {array} - * Key point resulting from scalar product. - */ - ns.curve25519 = curve25519; - - /** - * Computes the scalar product of a point on the curve 25519. - * - * This variant does not make sure that the private key is valid. - * The user has the responsibility to ensure the private key is - * valid or that this results in a safe protocol. Unless you know - * exactly what you are doing, you should not use this variant, - * please use 'curve25519' instead. - * - * @function - * @param f {array} - * Private key. - * @param c {array} - * Public point on the curve. If not given, the curve's base point is used. - * @returns {array} - * Key point resulting from scalar product. - */ - ns.curve25519_raw = curve25519_raw; - - /** - * Encodes the internal representation of a key to a canonical hex - * representation. - * - * This is the format commonly used in other libraries and for - * test vectors, and is equivalent to the hex dump of the key in - * little-endian binary format. - * - * @function - * @param n {array} - * Array representation of key. - * @returns {string} - * Hexadecimal string representation of key. - */ - ns.hexEncodeVector = _hexEncodeVector; - - /** - * Decodes a canonical hex representation of a key - * to an internally compatible array representation. - * - * @function - * @param n {string} - * Hexadecimal string representation of key. - * @returns {array} - * Array representation of key. - */ - ns.hexDecodeVector = _hexDecodeVector; - - /** - * Encodes the internal representation of a key into a - * hexadecimal representation. - * - * This is a strict positional notation, most significant digit first. - * - * @function - * @param n {array} - * Array representation of key. - * @returns {string} - * Hexadecimal string representation of key. - */ - ns.hexencode = utils.hexEncode; - - /** - * Decodes a hex representation of a key to an internally - * compatible array representation. - * - * @function - * @param n {string} - * Hexadecimal string representation of key. - * @returns {array} - * Array representation of key. - */ - ns.hexdecode = utils.hexDecode; - - /** - * Encodes the internal representation of a key to a base32 - * representation. - * - * @function - * @param n {array} - * Array representation of key. - * @returns {string} - * Base32 string representation of key. - */ - ns.base32encode = utils.base32encode; - - /** - * Decodes a base32 representation of a key to an internally - * compatible array representation. - * - * @function - * @param n {string} - * Base32 string representation of key. - * @returns {array} - * Array representation of key. - */ - ns.base32decode = utils.base32decode; - -module.exports = ns; - -},{"./core":59,"./utils":63}],61:[function(require,module,exports){ -(function (Buffer){ -"use strict"; -/** - * @fileOverview - * EC Diffie-Hellman operations on Curve25519. - */ - -/* - * Copyright (c) 2014 Mega Limited - * under the MIT License. - * - * Authors: Guy K. Kloss - * - * You should have received a copy of the license along with this program. - */ - -var core = require('./core'); -var utils = require('./utils'); -var curve255 = require('./curve255'); - - - /** - * @exports jodid25519/dh - * EC Diffie-Hellman operations on Curve25519. - * - * @description - * EC Diffie-Hellman operations on Curve25519. - */ - var ns = {}; - - - function _toString(vector) { - var u = new Uint16Array(vector); - return (new Buffer(new Uint8Array(u.buffer))); - } - - function _fromString(vector) { - if (Buffer.isBuffer(vector)) { - var u = new Uint8Array(vector); - return (new Uint16Array(u.buffer)); - } - - var result = new Array(16); - for (var i = 0, l = 0; i < vector.length; i += 2) { - result[l] = (vector.charCodeAt(i + 1) << 8) | vector.charCodeAt(i); - l++; - } - return result; - } - - - /** - * Computes a key through scalar multiplication of a point on the curve 25519. - * - * This function is used for the DH key-exchange protocol. It computes a - * key based on a secret key with a public component (opponent's public key - * or curve base point if not given) by using scalar multiplication. - * - * Before multiplication, some bit operations are applied to the - * private key to ensure it is a valid Curve25519 secret key. - * It is the user's responsibility to make sure that the private - * key is a uniformly random, secret value. - * - * @function - * @param privateComponent {string} - * Private point as byte string on the curve. - * @param publicComponent {string} - * Public point as byte string on the curve. If not given, the curve's - * base point is used. - * @returns {string} - * Key point as byte string resulting from scalar product. - */ - ns.computeKey = function(privateComponent, publicComponent) { - if (publicComponent) { - return _toString(curve255.curve25519(_fromString(privateComponent), - _fromString(publicComponent))); - } else { - return _toString(curve255.curve25519(_fromString(privateComponent))); - } - }; - - /** - * Computes the public key to a private key on the curve 25519. - * - * Before multiplication, some bit operations are applied to the - * private key to ensure it is a valid Curve25519 secret key. - * It is the user's responsibility to make sure that the private - * key is a uniformly random, secret value. - * - * @function - * @param privateKey {string} - * Private point as byte string on the curve. - * @returns {string} - * Public key point as byte string resulting from scalar product. - */ - ns.publicKey = function(privateKey) { - return _toString(curve255.curve25519(_fromString(privateKey))); - }; - - - /** - * Generates a new random private key of 32 bytes length (256 bit). - * - * @function - * @returns {string} - * Byte string containing a new random private key seed. - */ - ns.generateKey = function() { - return core.generateKey(true); - }; - -module.exports = ns; - -}).call(this,require("buffer").Buffer) -},{"./core":59,"./curve255":60,"./utils":63,"buffer":185}],62:[function(require,module,exports){ -(function (Buffer){ -"use strict"; -/** - * @fileOverview - * Digital signature scheme based on Curve25519 (Ed25519 or EdDSA). - */ - -/* - * Copyright (c) 2011, 2012, 2014 Ron Garret - * Copyright (c) 2014 Mega Limited - * under the MIT License. - * - * Authors: Guy K. Kloss, Ron Garret - * - * You should have received a copy of the license along with this program. - */ - -var core = require('./core'); -var curve255 = require('./curve255'); -var utils = require('./utils'); -var BigInteger = require('jsbn').BigInteger; -var crypto = require('crypto'); - - /** - * @exports jodid25519/eddsa - * Digital signature scheme based on Curve25519 (Ed25519 or EdDSA). - * - * @description - * Digital signature scheme based on Curve25519 (Ed25519 or EdDSA). - * - *

- * This code is adapted from fast-djbec.js, a faster but more complicated - * version of the Ed25519 encryption scheme (as compared to djbec.js). - * It uses two different representations for big integers: The jsbn - * BigInteger class, which can represent arbitrary-length numbers, and a - * special fixed-length representation optimised for 256-bit integers. - * The reason both are needed is that the Ed25519 algorithm requires some - * 512-bit numbers.

- */ - var ns = {}; - - function _bi255(value) { - if (!(this instanceof _bi255)) { - return new _bi255(value); - } - if (typeof value === 'undefined') { - return _ZERO; - } - var c = value.constructor; - if ((c === Array || c === Uint16Array || c === Uint32Array) && (value.length === 16)) { - this.n = value; - } else if ((c === Array) && (value.length === 32)) { - this.n = _bytes2bi255(value).n; - } else if (c === String) { - this.n = utils.hexDecode(value); - } else if (c === Number) { - this.n = [value & 0xffff, - value >> 16, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0]; - } else if (value instanceof _bi255) { - this.n = value.n.slice(0); // Copy constructor - } else { - throw "Bad argument for bignum: " + value; - } - } - - _bi255.prototype = { - 'toString' : function() { - return utils.hexEncode(this.n); - }, - 'toSource' : function() { - return '_' + utils.hexEncode(this.n); - }, - 'plus' : function(n1) { - return _bi255(core.bigintadd(this.n, n1.n)); - }, - 'minus' : function(n1) { - return _bi255(core.bigintsub(this.n, n1.n)).modq(); - }, - 'times' : function(n1) { - return _bi255(core.mulmodp(this.n, n1.n)); - }, - 'divide' : function(n1) { - return this.times(n1.inv()); - }, - 'sqr' : function() { - return _bi255(core.sqrmodp(this.n)); - }, - 'cmp' : function(n1) { - return core.bigintcmp(this.n, n1.n); - }, - 'equals' : function(n1) { - return this.cmp(n1) === 0; - }, - 'isOdd' : function() { - return (this.n[0] & 1) === 1; - }, - 'shiftLeft' : function(cnt) { - _shiftL(this.n, cnt); - return this; - }, - 'shiftRight' : function(cnt) { - _shiftR(this.n, cnt); - return this; - }, - 'inv' : function() { - return _bi255(core.invmodp(this.n)); - }, - 'pow' : function(e) { - return _bi255(_pow(this.n, e.n)); - }, - 'modq' : function() { - return _modq(this); - }, - 'bytes' : function() { - return _bi255_bytes(this); - } - }; - - function _shiftL(n, cnt) { - var lastcarry = 0; - for (var i = 0; i < 16; i++) { - var carry = n[i] >> (16 - cnt); - n[i] = (n[i] << cnt) & 0xffff | lastcarry; - lastcarry = carry; - } - return n; - } - - function _shiftR(n, cnt) { - var lastcarry = 0; - for (var i = 15; i >= 0; i--) { - var carry = n[i] << (16 - cnt) & 0xffff; - n[i] = (n[i] >> cnt) | lastcarry; - lastcarry = carry; - } - return n; - } - - function _bi255_bytes(n) { - n = _bi255(n); // Make a copy because shiftRight is destructive - var a = new Array(32); - for (var i = 31; i >= 0; i--) { - a[i] = n.n[0] & 0xff; - n.shiftRight(8); - } - return a; - } - - function _bytes2bi255(a) { - var n = _ZERO; - for (var i = 0; i < 32; i++) { - n.shiftLeft(8); - n = n.plus(_bi255(a[i])); - } - return n; - } - - function _pow(n, e) { - var result = core.ONE(); - for (var i = 0; i < 256; i++) { - if (core.getbit(e, i) === 1) { - result = core.mulmodp(result, n); - } - n = core.sqrmodp(n); - } - return result; - } - - var _ZERO = _bi255(0); - var _ONE = _bi255(1); - var _TWO = _bi255(2); - // This is the core prime. - var _Q = _bi255([0xffff - 18, 0xffff, 0xffff, 0xffff, 0xffff, 0xffff, - 0xffff, 0xffff, 0xffff, 0xffff, 0xffff, 0xffff, 0xffff, - 0xffff, 0xffff, 0x7fff]); - - function _modq(n) { - core.reduce(n.n); - if (n.cmp(_Q) >= 0) { - return _modq(n.minus(_Q)); - } - if (n.cmp(_ZERO) === -1) { - return _modq(n.plus(_Q)); - } else { - return n; - } - } - - // _RECOVERY_EXPONENT = _Q.plus(_bi255(3)).divide(_bi255(8)); - var _RECOVERY_EXPONENT = _bi255('0ffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffe'); - // _D = _Q.minus(_bi255(121665)).divide(_bi255(121666)); - var _D = _bi255('52036cee2b6ffe738cc740797779e89800700a4d4141d8ab75eb4dca135978a3'); - // _I = _TWO.pow(_Q.minus(_ONE).divide(_bi255(4))); - var _I = _bi255('2b8324804fc1df0b2b4d00993dfbd7a72f431806ad2fe478c4ee1b274a0ea0b0'); - // _L = _TWO.pow(_bi255(252)).plus(_bi255('14def9dea2f79cd65812631a5cf5d3ed')); - var _L = _bi255('1000000000000000000000000000000014def9dea2f79cd65812631a5cf5d3ed'); - var _L_BI = _bi('1000000000000000000000000000000014def9dea2f79cd65812631a5cf5d3ed', 16); - - - // //////////////////////////////////////////////////////////// - - function _isoncurve(p) { - var x = p[0]; - var y = p[1]; - var xsqr = x.sqr(); - var ysqr = y.sqr(); - var v = _D.times(xsqr).times(ysqr); - return ysqr.minus(xsqr).minus(_ONE).minus(v).modq().equals(_ZERO); - } - - function _xrecover(y) { - var ysquared = y.sqr(); - var xx = ysquared.minus(_ONE).divide(_ONE.plus(_D.times(ysquared))); - var x = xx.pow(_RECOVERY_EXPONENT); - if (!(x.times(x).minus(xx).equals(_ZERO))) { - x = x.times(_I); - } - if (x.isOdd()) { - x = _Q.minus(x); - } - return x; - } - - function _x_pt_add(pt1, pt2) { - var x1 = pt1[0]; - var y1 = pt1[1]; - var z1 = pt1[2]; - var t1 = pt1[3]; - var x2 = pt2[0]; - var y2 = pt2[1]; - var z2 = pt2[2]; - var t2 = pt2[3]; - var A = y1.minus(x1).times(y2.plus(x2)); - var B = y1.plus(x1).times(y2.minus(x2)); - var C = z1.times(_TWO).times(t2); - var D = t1.times(_TWO).times(z2); - var E = D.plus(C); - var F = B.minus(A); - var G = B.plus(A); - var H = D.minus(C); - return [E.times(F), G.times(H), F.times(G), E.times(H)]; - } - - function _xpt_double(pt1) { - var x1 = pt1[0]; - var y1 = pt1[1]; - var z1 = pt1[2]; - var A = x1.times(x1); - var B = y1.times(y1); - var C = _TWO.times(z1).times(z1); - var D = _Q.minus(A); - var J = x1.plus(y1); - var E = J.times(J).minus(A).minus(B); - var G = D.plus(B); - var F = G.minus(C); - var H = D.minus(B); - return [E.times(F), G.times(H), F.times(G), E.times(H)]; - } - - function _xpt_mult(pt, n) { - if (n.equals(_ZERO)) { - return [_ZERO, _ONE, _ONE, _ZERO]; - } - var odd = n.isOdd(); - n.shiftRight(1); - var value = _xpt_double(_xpt_mult(pt, n)); - return odd ? _x_pt_add(value, pt) : value; - } - - function _pt_xform(pt) { - var x = pt[0]; - var y = pt[1]; - return [x, y, _ONE, x.times(y)]; - } - - function _pt_unxform(pt) { - var x = pt[0]; - var y = pt[1]; - var z = pt[2]; - var invz = z.inv(); - return [x.times(invz), y.times(invz)]; - } - - function _scalarmult(pt, n) { - return _pt_unxform(_xpt_mult(_pt_xform(pt), n)); - } - - function _bytesgetbit(bytes, n) { - return (bytes[bytes.length - (n >>> 3) - 1] >> (n & 7)) & 1; - } - - function _xpt_mult_bytes(pt, bytes) { - var r = [_ZERO, _ONE, _ONE, _ZERO]; - for (var i = (bytes.length << 3) - 1; i >= 0; i--) { - r = _xpt_double(r); - if (_bytesgetbit(bytes, i) === 1) { - r = _x_pt_add(r, pt); - } - } - return r; - } - - function _scalarmultBytes(pt, bytes) { - return _pt_unxform(_xpt_mult_bytes(_pt_xform(pt), bytes)); - } - - var _by = _bi255(4).divide(_bi255(5)); - var _bx = _xrecover(_by); - var _bp = [_bx, _by]; - - function _encodeint(n) { - return n.bytes(32).reverse(); - } - function _decodeint(b) { - return _bi255(b.slice(0).reverse()); - } - - function _encodepoint(p) { - var v = _encodeint(p[1]); - if (p[0].isOdd()) { - v[31] |= 0x80; - } - return v; - } - - function _decodepoint(v) { - v = v.slice(0); - var signbit = v[31] >> 7; - v[31] &= 127; - var y = _decodeint(v); - var x = _xrecover(y); - if ((x.n[0] & 1) !== signbit) { - x = _Q.minus(x); - } - var p = [x, y]; - if (!_isoncurve(p)) { - throw ('Point is not on curve'); - } - return p; - } - - // ////////////////////////////////////////////////// - - /** - * Factory function to create a suitable BigInteger. - * - * @param value - * The value for the big integer. - * @param base {integer} - * Base of the conversion of elements in ``value``. - * @returns - * A BigInteger object. - */ - function _bi(value, base) { - if (base !== undefined) { - if (base === 256) { - return _bi(utils.string2bytes(value)); - } - return new BigInteger(value, base); - } else if (typeof value === 'string') { - return new BigInteger(value, 10); - } else if ((value instanceof Array) || (value instanceof Uint8Array) - || Buffer.isBuffer(value)) { - return new BigInteger(value); - } else if (typeof value === 'number') { - return new BigInteger(value.toString(), 10); - } else { - throw "Can't convert " + value + " to BigInteger"; - } - } - - function _bi2bytes(n, cnt) { - if (cnt === undefined) { - cnt = (n.bitLength() + 7) >>> 3; - } - var bytes = new Array(cnt); - for (var i = cnt - 1; i >= 0; i--) { - bytes[i] = n[0] & 255; // n.and(0xff); - n = n.shiftRight(8); - } - return bytes; - } - - BigInteger.prototype.bytes = function(n) { - return _bi2bytes(this, n); - }; - - // ///////////////////////////////////////////////////////// - - function _bytehash(s) { - var sha = crypto.createHash('sha512').update(s).digest(); - return _bi2bytes(_bi(sha), 64).reverse(); - } - - function _stringhash(s) { - var sha = crypto.createHash('sha512').update(s).digest(); - return _map(_chr, _bi2bytes(_bi(sha), 64)).join(''); - } - - function _inthash(s) { - // Need a leading 0 to prevent sign extension - return _bi([0].concat(_bytehash(s))); - } - - function _inthash_lo(s) { - return _bi255(_bytehash(s).slice(32, 64)); - } - - function _inthash_mod_l(s) { - return _inthash(s).mod(_L_BI); - } - - function _get_a(sk) { - var a = _inthash_lo(sk); - a.n[0] &= 0xfff8; - a.n[15] &= 0x3fff; - a.n[15] |= 0x4000; - return a; - } - - function _publickey(sk) { - return _encodepoint(_scalarmult(_bp, _get_a(sk))); - } - - function _map(f, l) { - var result = new Array(l.length); - for (var i = 0; i < l.length; i++) { - result[i] = f(l[i]); - } - return result; - } - - function _chr(n) { - return String.fromCharCode(n); - } - - function _ord(c) { - return c.charCodeAt(0); - } - - function _pt_add(p1, p2) { - return _pt_unxform(_x_pt_add(_pt_xform(p1), _pt_xform(p2))); - } - - - // Exports for the API. - - /** - * Checks whether a point is on the curve. - * - * @function - * @param point {string} - * The point to check for in a byte string representation. - * @returns {boolean} - * true if the point is on the curve, false otherwise. - */ - ns.isOnCurve = function(point) { - try { - _isoncurve(_decodepoint(utils.string2bytes(point))); - } catch(e) { - if (e === 'Point is not on curve') { - return false; - } else { - throw e; - } - } - return true; - }; - - - /** - * Computes the EdDSA public key. - * - *

Note: Seeds should be a byte string, not a unicode string containing - * multi-byte characters.

- * - * @function - * @param keySeed {string} - * Private key seed in the form of a byte string. - * @returns {string} - * Public key as byte string computed from the private key seed - * (32 bytes). - */ - ns.publicKey = function(keySeed) { - return utils.bytes2string(_publickey(keySeed)); - }; - - - /** - * Computes an EdDSA signature of a message. - * - *

Notes:

- * - *
    - *
  • Unicode messages need to be converted to a byte representation - * (e. g. UTF-8).
    • - *
  • If `publicKey` is given, and it is *not* a point of the curve, - * the signature will be faulty, but no error will be thrown.
    • - *
- * - * @function - * @param message {string} - * Message in the form of a byte string. - * @param keySeed {string} - * Private key seed in the form of a byte string. - * @param publicKey {string} - * Public key as byte string (if not present, it will be computed from - * the private key seed). - * @returns {string} - * Detached message signature in the form of a byte string (64 bytes). - */ - ns.sign = function(message, keySeed, publicKey) { - if (publicKey === undefined) { - publicKey = _publickey(keySeed); - } else { - publicKey = utils.string2bytes(publicKey); - } - var a = _bi(_get_a(keySeed).toString(), 16); - var hs = _stringhash(keySeed); - var r = _bytehash(hs.slice(32, 64) + message); - var rp = _scalarmultBytes(_bp, r); - var erp = _encodepoint(rp); - r = _bi(r).mod(_bi(1, 10).shiftLeft(512)); - var s = _map(_chr, erp).join('') + _map(_chr, publicKey).join('') + message; - s = _inthash_mod_l(s).multiply(a).add(r).mod(_L_BI); - return utils.bytes2string(erp.concat(_encodeint(s))); - }; - - - /** - * Verifies an EdDSA signature of a message with the public key. - * - *

Note: Unicode messages need to be converted to a byte representation - * (e. g. UTF-8).

- * - * @function - * @param signature {string} - * Message signature in the form of a byte string. Can be detached - * (64 bytes), or attached to be sliced off. - * @param message {string} - * Message in the form of a byte string. - * @param publicKey {string} - * Public key as byte string (if not present, it will be computed from - * the private key seed). - * @returns {boolean} - * true, if the signature verifies. - */ - ns.verify = function(signature, message, publicKey) { - signature = utils.string2bytes(signature.slice(0, 64)); - publicKey = utils.string2bytes(publicKey); - var rpe = signature.slice(0, 32); - var rp = _decodepoint(rpe); - var a = _decodepoint(publicKey); - var s = _decodeint(signature.slice(32, 64)); - var h = _inthash(utils.bytes2string(rpe.concat(publicKey)) + message); - var v1 = _scalarmult(_bp, s); - var value = _scalarmultBytes(a, _bi2bytes(h)); - var v2 = _pt_add(rp, value); - return v1[0].equals(v2[0]) && v1[1].equals(v2[1]); - }; - - - /** - * Generates a new random private key seed of 32 bytes length (256 bit). - * - * @function - * @returns {string} - * Byte string containing a new random private key seed. - */ - ns.generateKeySeed = function() { - return core.generateKey(false); - }; - -module.exports = ns; - -}).call(this,{"isBuffer":require("../../../../../../../../../usr/local/lib/node_modules/watchify/node_modules/is-buffer/index.js")}) -},{"../../../../../../../../../usr/local/lib/node_modules/watchify/node_modules/is-buffer/index.js":234,"./core":59,"./curve255":60,"./utils":63,"crypto":194,"jsbn":64}],63:[function(require,module,exports){ -"use strict"; -/** - * @fileOverview - * A collection of general utility functions.. - */ - -/* - * Copyright (c) 2011, 2012, 2014 Ron Garret - * Copyright (c) 2007, 2013, 2014 Michele Bini - * Copyright (c) 2014 Mega Limited - * under the MIT License. - * - * Authors: Guy K. Kloss, Michele Bini, Ron Garret - * - * You should have received a copy of the license along with this program. - */ - -var core = require('./core'); - - /** - * @exports jodid25519/utils - * A collection of general utility functions.. - * - * @description - * A collection of general utility functions.. - */ - var ns = {}; - - var _HEXCHARS = "0123456789abcdef"; - - function _hexencode(vector) { - var result = []; - for (var i = vector.length - 1; i >= 0; i--) { - var value = vector[i]; - result.push(_HEXCHARS.substr((value >>> 12) & 0x0f, 1)); - result.push(_HEXCHARS.substr((value >>> 8) & 0x0f, 1)); - result.push(_HEXCHARS.substr((value >>> 4) & 0x0f, 1)); - result.push(_HEXCHARS.substr(value & 0x0f, 1)); - } - return result.join(''); - } - - function _hexdecode(vector) { - var result = [0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0]; - for (var i = vector.length - 1, l = 0; i >= 0; i -= 4) { - result[l] = (_HEXCHARS.indexOf(vector.charAt(i))) - | (_HEXCHARS.indexOf(vector.charAt(i - 1)) << 4) - | (_HEXCHARS.indexOf(vector.charAt(i - 2)) << 8) - | (_HEXCHARS.indexOf(vector.charAt(i - 3)) << 12); - l++; - } - return result; - } - - var _BASE32CHARS = "abcdefghijklmnopqrstuvwxyz234567"; - - var _BASE32VALUES = (function () { - var result = {}; - for (var i = 0; i < _BASE32CHARS.length; i++) { - result[_BASE32CHARS.charAt(i)] = i; - } - return result; - })(); - - function _base32encode(n) { - var c; - var r = ""; - for (c = 0; c < 255; c += 5) { - r = _BASE32CHARS.substr(core.getbit(n, c) - + (core.getbit(n, c + 1) << 1) - + (core.getbit(n, c + 2) << 2) - + (core.getbit(n, c + 3) << 3) - + (core.getbit(n, c + 4) << 4), 1) - + r; - } - return r; - } - - function _base32decode(n) { - var c = 0; - var r = core.ZERO(); - var l = n.length; - for (c = 0; (l > 0) && (c < 255); c += 5) { - l--; - var v = _BASE32VALUES[n.substr(l, 1)]; - core.setbit(r, c, v & 1); - v >>= 1; - core.setbit(r, c + 1, v & 1); - v >>= 1; - core.setbit(r, c + 2, v & 1); - v >>= 1; - core.setbit(r, c + 3, v & 1); - v >>= 1; - core.setbit(r, c + 4, v & 1); - } - return r; - } - - function _map(f, l) { - var result = new Array(l.length); - for (var i = 0; i < l.length; i++) { - result[i] = f(l[i]); - } - return result; - } - - function _chr(n) { - return String.fromCharCode(n); - } - - function _ord(c) { - return c.charCodeAt(0); - } - - function _bytes2string(bytes) { - return _map(_chr, bytes).join(''); - } - - function _string2bytes(s) { - return _map(_ord, s); - } - - - // Expose some functions to the outside through this name space. - - /** - * Encodes an array of unsigned 8-bit integers to a hex string. - * - * @function - * @param vector {array} - * Array containing the byte values. - * @returns {string} - * String containing vector in a hexadecimal representation. - */ - ns.hexEncode = _hexencode; - - - /** - * Decodes a hex string to an array of unsigned 8-bit integers. - * - * @function - * @param vector {string} - * String containing vector in a hexadecimal representation. - * @returns {array} - * Array containing the byte values. - */ - ns.hexDecode = _hexdecode; - - - /** - * Encodes an array of unsigned 8-bit integers using base32 encoding. - * - * @function - * @param vector {array} - * Array containing the byte values. - * @returns {string} - * String containing vector in a hexadecimal representation. - */ - ns.base32encode = _base32encode; - - - /** - * Decodes a base32 encoded string to an array of unsigned 8-bit integers. - * - * @function - * @param vector {string} - * String containing vector in a hexadecimal representation. - * @returns {array} - * Array containing the byte values. - */ - ns.base32decode = _base32decode; - - - /** - * Converts an unsigned 8-bit integer array representation to a byte string. - * - * @function - * @param vector {array} - * Array containing the byte values. - * @returns {string} - * Byte string representation of vector. - */ - ns.bytes2string = _bytes2string; - - - /** - * Converts a byte string representation to an array of unsigned - * 8-bit integers. - * - * @function - * @param vector {array} - * Array containing the byte values. - * @returns {string} - * Byte string representation of vector. - */ - ns.string2bytes = _string2bytes; - -module.exports = ns; - -},{"./core":59}],64:[function(require,module,exports){ -(function(){ - - // Copyright (c) 2005 Tom Wu - // All Rights Reserved. - // See "LICENSE" for details. - - // Basic JavaScript BN library - subset useful for RSA encryption. - - // Bits per digit - var dbits; - - // JavaScript engine analysis - var canary = 0xdeadbeefcafe; - var j_lm = ((canary&0xffffff)==0xefcafe); - - // (public) Constructor - function BigInteger(a,b,c) { - if(a != null) - if("number" == typeof a) this.fromNumber(a,b,c); - else if(b == null && "string" != typeof a) this.fromString(a,256); - else this.fromString(a,b); - } - - // return new, unset BigInteger - function nbi() { return new BigInteger(null); } - - // am: Compute w_j += (x*this_i), propagate carries, - // c is initial carry, returns final carry. - // c < 3*dvalue, x < 2*dvalue, this_i < dvalue - // We need to select the fastest one that works in this environment. - - // am1: use a single mult and divide to get the high bits, - // max digit bits should be 26 because - // max internal value = 2*dvalue^2-2*dvalue (< 2^53) - function am1(i,x,w,j,c,n) { - while(--n >= 0) { - var v = x*this[i++]+w[j]+c; - c = Math.floor(v/0x4000000); - w[j++] = v&0x3ffffff; - } - return c; - } - // am2 avoids a big mult-and-extract completely. - // Max digit bits should be <= 30 because we do bitwise ops - // on values up to 2*hdvalue^2-hdvalue-1 (< 2^31) - function am2(i,x,w,j,c,n) { - var xl = x&0x7fff, xh = x>>15; - while(--n >= 0) { - var l = this[i]&0x7fff; - var h = this[i++]>>15; - var m = xh*l+h*xl; - l = xl*l+((m&0x7fff)<<15)+w[j]+(c&0x3fffffff); - c = (l>>>30)+(m>>>15)+xh*h+(c>>>30); - w[j++] = l&0x3fffffff; - } - return c; - } - // Alternately, set max digit bits to 28 since some - // browsers slow down when dealing with 32-bit numbers. - function am3(i,x,w,j,c,n) { - var xl = x&0x3fff, xh = x>>14; - while(--n >= 0) { - var l = this[i]&0x3fff; - var h = this[i++]>>14; - var m = xh*l+h*xl; - l = xl*l+((m&0x3fff)<<14)+w[j]+c; - c = (l>>28)+(m>>14)+xh*h; - w[j++] = l&0xfffffff; - } - return c; - } - var inBrowser = typeof navigator !== "undefined"; - if(inBrowser && j_lm && (navigator.appName == "Microsoft Internet Explorer")) { - BigInteger.prototype.am = am2; - dbits = 30; - } - else if(inBrowser && j_lm && (navigator.appName != "Netscape")) { - BigInteger.prototype.am = am1; - dbits = 26; - } - else { // Mozilla/Netscape seems to prefer am3 - BigInteger.prototype.am = am3; - dbits = 28; - } - - BigInteger.prototype.DB = dbits; - BigInteger.prototype.DM = ((1<= 0; --i) r[i] = this[i]; - r.t = this.t; - r.s = this.s; - } - - // (protected) set from integer value x, -DV <= x < DV - function bnpFromInt(x) { - this.t = 1; - this.s = (x<0)?-1:0; - if(x > 0) this[0] = x; - else if(x < -1) this[0] = x+this.DV; - else this.t = 0; - } - - // return bigint initialized to value - function nbv(i) { var r = nbi(); r.fromInt(i); return r; } - - // (protected) set from string and radix - function bnpFromString(s,b) { - var k; - if(b == 16) k = 4; - else if(b == 8) k = 3; - else if(b == 256) k = 8; // byte array - else if(b == 2) k = 1; - else if(b == 32) k = 5; - else if(b == 4) k = 2; - else { this.fromRadix(s,b); return; } - this.t = 0; - this.s = 0; - var i = s.length, mi = false, sh = 0; - while(--i >= 0) { - var x = (k==8)?s[i]&0xff:intAt(s,i); - if(x < 0) { - if(s.charAt(i) == "-") mi = true; - continue; - } - mi = false; - if(sh == 0) - this[this.t++] = x; - else if(sh+k > this.DB) { - this[this.t-1] |= (x&((1<<(this.DB-sh))-1))<>(this.DB-sh)); - } - else - this[this.t-1] |= x<= this.DB) sh -= this.DB; - } - if(k == 8 && (s[0]&0x80) != 0) { - this.s = -1; - if(sh > 0) this[this.t-1] |= ((1<<(this.DB-sh))-1)< 0 && this[this.t-1] == c) --this.t; - } - - // (public) return string representation in given radix - function bnToString(b) { - if(this.s < 0) return "-"+this.negate().toString(b); - var k; - if(b == 16) k = 4; - else if(b == 8) k = 3; - else if(b == 2) k = 1; - else if(b == 32) k = 5; - else if(b == 4) k = 2; - else return this.toRadix(b); - var km = (1< 0) { - if(p < this.DB && (d = this[i]>>p) > 0) { m = true; r = int2char(d); } - while(i >= 0) { - if(p < k) { - d = (this[i]&((1<>(p+=this.DB-k); - } - else { - d = (this[i]>>(p-=k))&km; - if(p <= 0) { p += this.DB; --i; } - } - if(d > 0) m = true; - if(m) r += int2char(d); - } - } - return m?r:"0"; - } - - // (public) -this - function bnNegate() { var r = nbi(); BigInteger.ZERO.subTo(this,r); return r; } - - // (public) |this| - function bnAbs() { return (this.s<0)?this.negate():this; } - - // (public) return + if this > a, - if this < a, 0 if equal - function bnCompareTo(a) { - var r = this.s-a.s; - if(r != 0) return r; - var i = this.t; - r = i-a.t; - if(r != 0) return (this.s<0)?-r:r; - while(--i >= 0) if((r=this[i]-a[i]) != 0) return r; - return 0; - } - - // returns bit length of the integer x - function nbits(x) { - var r = 1, t; - if((t=x>>>16) != 0) { x = t; r += 16; } - if((t=x>>8) != 0) { x = t; r += 8; } - if((t=x>>4) != 0) { x = t; r += 4; } - if((t=x>>2) != 0) { x = t; r += 2; } - if((t=x>>1) != 0) { x = t; r += 1; } - return r; - } - - // (public) return the number of bits in "this" - function bnBitLength() { - if(this.t <= 0) return 0; - return this.DB*(this.t-1)+nbits(this[this.t-1]^(this.s&this.DM)); - } - - // (protected) r = this << n*DB - function bnpDLShiftTo(n,r) { - var i; - for(i = this.t-1; i >= 0; --i) r[i+n] = this[i]; - for(i = n-1; i >= 0; --i) r[i] = 0; - r.t = this.t+n; - r.s = this.s; - } - - // (protected) r = this >> n*DB - function bnpDRShiftTo(n,r) { - for(var i = n; i < this.t; ++i) r[i-n] = this[i]; - r.t = Math.max(this.t-n,0); - r.s = this.s; - } - - // (protected) r = this << n - function bnpLShiftTo(n,r) { - var bs = n%this.DB; - var cbs = this.DB-bs; - var bm = (1<= 0; --i) { - r[i+ds+1] = (this[i]>>cbs)|c; - c = (this[i]&bm)<= 0; --i) r[i] = 0; - r[ds] = c; - r.t = this.t+ds+1; - r.s = this.s; - r.clamp(); - } - - // (protected) r = this >> n - function bnpRShiftTo(n,r) { - r.s = this.s; - var ds = Math.floor(n/this.DB); - if(ds >= this.t) { r.t = 0; return; } - var bs = n%this.DB; - var cbs = this.DB-bs; - var bm = (1<>bs; - for(var i = ds+1; i < this.t; ++i) { - r[i-ds-1] |= (this[i]&bm)<>bs; - } - if(bs > 0) r[this.t-ds-1] |= (this.s&bm)<>= this.DB; - } - if(a.t < this.t) { - c -= a.s; - while(i < this.t) { - c += this[i]; - r[i++] = c&this.DM; - c >>= this.DB; - } - c += this.s; - } - else { - c += this.s; - while(i < a.t) { - c -= a[i]; - r[i++] = c&this.DM; - c >>= this.DB; - } - c -= a.s; - } - r.s = (c<0)?-1:0; - if(c < -1) r[i++] = this.DV+c; - else if(c > 0) r[i++] = c; - r.t = i; - r.clamp(); - } - - // (protected) r = this * a, r != this,a (HAC 14.12) - // "this" should be the larger one if appropriate. - function bnpMultiplyTo(a,r) { - var x = this.abs(), y = a.abs(); - var i = x.t; - r.t = i+y.t; - while(--i >= 0) r[i] = 0; - for(i = 0; i < y.t; ++i) r[i+x.t] = x.am(0,y[i],r,i,0,x.t); - r.s = 0; - r.clamp(); - if(this.s != a.s) BigInteger.ZERO.subTo(r,r); - } - - // (protected) r = this^2, r != this (HAC 14.16) - function bnpSquareTo(r) { - var x = this.abs(); - var i = r.t = 2*x.t; - while(--i >= 0) r[i] = 0; - for(i = 0; i < x.t-1; ++i) { - var c = x.am(i,x[i],r,2*i,0,1); - if((r[i+x.t]+=x.am(i+1,2*x[i],r,2*i+1,c,x.t-i-1)) >= x.DV) { - r[i+x.t] -= x.DV; - r[i+x.t+1] = 1; - } - } - if(r.t > 0) r[r.t-1] += x.am(i,x[i],r,2*i,0,1); - r.s = 0; - r.clamp(); - } - - // (protected) divide this by m, quotient and remainder to q, r (HAC 14.20) - // r != q, this != m. q or r may be null. - function bnpDivRemTo(m,q,r) { - var pm = m.abs(); - if(pm.t <= 0) return; - var pt = this.abs(); - if(pt.t < pm.t) { - if(q != null) q.fromInt(0); - if(r != null) this.copyTo(r); - return; - } - if(r == null) r = nbi(); - var y = nbi(), ts = this.s, ms = m.s; - var nsh = this.DB-nbits(pm[pm.t-1]); // normalize modulus - if(nsh > 0) { pm.lShiftTo(nsh,y); pt.lShiftTo(nsh,r); } - else { pm.copyTo(y); pt.copyTo(r); } - var ys = y.t; - var y0 = y[ys-1]; - if(y0 == 0) return; - var yt = y0*(1<1)?y[ys-2]>>this.F2:0); - var d1 = this.FV/yt, d2 = (1<= 0) { - r[r.t++] = 1; - r.subTo(t,r); - } - BigInteger.ONE.dlShiftTo(ys,t); - t.subTo(y,y); // "negative" y so we can replace sub with am later - while(y.t < ys) y[y.t++] = 0; - while(--j >= 0) { - // Estimate quotient digit - var qd = (r[--i]==y0)?this.DM:Math.floor(r[i]*d1+(r[i-1]+e)*d2); - if((r[i]+=y.am(0,qd,r,j,0,ys)) < qd) { // Try it out - y.dlShiftTo(j,t); - r.subTo(t,r); - while(r[i] < --qd) r.subTo(t,r); - } - } - if(q != null) { - r.drShiftTo(ys,q); - if(ts != ms) BigInteger.ZERO.subTo(q,q); - } - r.t = ys; - r.clamp(); - if(nsh > 0) r.rShiftTo(nsh,r); // Denormalize remainder - if(ts < 0) BigInteger.ZERO.subTo(r,r); - } - - // (public) this mod a - function bnMod(a) { - var r = nbi(); - this.abs().divRemTo(a,null,r); - if(this.s < 0 && r.compareTo(BigInteger.ZERO) > 0) a.subTo(r,r); - return r; - } - - // Modular reduction using "classic" algorithm - function Classic(m) { this.m = m; } - function cConvert(x) { - if(x.s < 0 || x.compareTo(this.m) >= 0) return x.mod(this.m); - else return x; - } - function cRevert(x) { return x; } - function cReduce(x) { x.divRemTo(this.m,null,x); } - function cMulTo(x,y,r) { x.multiplyTo(y,r); this.reduce(r); } - function cSqrTo(x,r) { x.squareTo(r); this.reduce(r); } - - Classic.prototype.convert = cConvert; - Classic.prototype.revert = cRevert; - Classic.prototype.reduce = cReduce; - Classic.prototype.mulTo = cMulTo; - Classic.prototype.sqrTo = cSqrTo; - - // (protected) return "-1/this % 2^DB"; useful for Mont. reduction - // justification: - // xy == 1 (mod m) - // xy = 1+km - // xy(2-xy) = (1+km)(1-km) - // x[y(2-xy)] = 1-k^2m^2 - // x[y(2-xy)] == 1 (mod m^2) - // if y is 1/x mod m, then y(2-xy) is 1/x mod m^2 - // should reduce x and y(2-xy) by m^2 at each step to keep size bounded. - // JS multiply "overflows" differently from C/C++, so care is needed here. - function bnpInvDigit() { - if(this.t < 1) return 0; - var x = this[0]; - if((x&1) == 0) return 0; - var y = x&3; // y == 1/x mod 2^2 - y = (y*(2-(x&0xf)*y))&0xf; // y == 1/x mod 2^4 - y = (y*(2-(x&0xff)*y))&0xff; // y == 1/x mod 2^8 - y = (y*(2-(((x&0xffff)*y)&0xffff)))&0xffff; // y == 1/x mod 2^16 - // last step - calculate inverse mod DV directly; - // assumes 16 < DB <= 32 and assumes ability to handle 48-bit ints - y = (y*(2-x*y%this.DV))%this.DV; // y == 1/x mod 2^dbits - // we really want the negative inverse, and -DV < y < DV - return (y>0)?this.DV-y:-y; - } - - // Montgomery reduction - function Montgomery(m) { - this.m = m; - this.mp = m.invDigit(); - this.mpl = this.mp&0x7fff; - this.mph = this.mp>>15; - this.um = (1<<(m.DB-15))-1; - this.mt2 = 2*m.t; - } - - // xR mod m - function montConvert(x) { - var r = nbi(); - x.abs().dlShiftTo(this.m.t,r); - r.divRemTo(this.m,null,r); - if(x.s < 0 && r.compareTo(BigInteger.ZERO) > 0) this.m.subTo(r,r); - return r; - } - - // x/R mod m - function montRevert(x) { - var r = nbi(); - x.copyTo(r); - this.reduce(r); - return r; - } - - // x = x/R mod m (HAC 14.32) - function montReduce(x) { - while(x.t <= this.mt2) // pad x so am has enough room later - x[x.t++] = 0; - for(var i = 0; i < this.m.t; ++i) { - // faster way of calculating u0 = x[i]*mp mod DV - var j = x[i]&0x7fff; - var u0 = (j*this.mpl+(((j*this.mph+(x[i]>>15)*this.mpl)&this.um)<<15))&x.DM; - // use am to combine the multiply-shift-add into one call - j = i+this.m.t; - x[j] += this.m.am(0,u0,x,i,0,this.m.t); - // propagate carry - while(x[j] >= x.DV) { x[j] -= x.DV; x[++j]++; } - } - x.clamp(); - x.drShiftTo(this.m.t,x); - if(x.compareTo(this.m) >= 0) x.subTo(this.m,x); - } - - // r = "x^2/R mod m"; x != r - function montSqrTo(x,r) { x.squareTo(r); this.reduce(r); } - - // r = "xy/R mod m"; x,y != r - function montMulTo(x,y,r) { x.multiplyTo(y,r); this.reduce(r); } - - Montgomery.prototype.convert = montConvert; - Montgomery.prototype.revert = montRevert; - Montgomery.prototype.reduce = montReduce; - Montgomery.prototype.mulTo = montMulTo; - Montgomery.prototype.sqrTo = montSqrTo; - - // (protected) true iff this is even - function bnpIsEven() { return ((this.t>0)?(this[0]&1):this.s) == 0; } - - // (protected) this^e, e < 2^32, doing sqr and mul with "r" (HAC 14.79) - function bnpExp(e,z) { - if(e > 0xffffffff || e < 1) return BigInteger.ONE; - var r = nbi(), r2 = nbi(), g = z.convert(this), i = nbits(e)-1; - g.copyTo(r); - while(--i >= 0) { - z.sqrTo(r,r2); - if((e&(1< 0) z.mulTo(r2,g,r); - else { var t = r; r = r2; r2 = t; } - } - return z.revert(r); - } - - // (public) this^e % m, 0 <= e < 2^32 - function bnModPowInt(e,m) { - var z; - if(e < 256 || m.isEven()) z = new Classic(m); else z = new Montgomery(m); - return this.exp(e,z); - } - - // protected - BigInteger.prototype.copyTo = bnpCopyTo; - BigInteger.prototype.fromInt = bnpFromInt; - BigInteger.prototype.fromString = bnpFromString; - BigInteger.prototype.clamp = bnpClamp; - BigInteger.prototype.dlShiftTo = bnpDLShiftTo; - BigInteger.prototype.drShiftTo = bnpDRShiftTo; - BigInteger.prototype.lShiftTo = bnpLShiftTo; - BigInteger.prototype.rShiftTo = bnpRShiftTo; - BigInteger.prototype.subTo = bnpSubTo; - BigInteger.prototype.multiplyTo = bnpMultiplyTo; - BigInteger.prototype.squareTo = bnpSquareTo; - BigInteger.prototype.divRemTo = bnpDivRemTo; - BigInteger.prototype.invDigit = bnpInvDigit; - BigInteger.prototype.isEven = bnpIsEven; - BigInteger.prototype.exp = bnpExp; - - // public - BigInteger.prototype.toString = bnToString; - BigInteger.prototype.negate = bnNegate; - BigInteger.prototype.abs = bnAbs; - BigInteger.prototype.compareTo = bnCompareTo; - BigInteger.prototype.bitLength = bnBitLength; - BigInteger.prototype.mod = bnMod; - BigInteger.prototype.modPowInt = bnModPowInt; - - // "constants" - BigInteger.ZERO = nbv(0); - BigInteger.ONE = nbv(1); - - // Copyright (c) 2005-2009 Tom Wu - // All Rights Reserved. - // See "LICENSE" for details. - - // Extended JavaScript BN functions, required for RSA private ops. - - // Version 1.1: new BigInteger("0", 10) returns "proper" zero - // Version 1.2: square() API, isProbablePrime fix - - // (public) - function bnClone() { var r = nbi(); this.copyTo(r); return r; } - - // (public) return value as integer - function bnIntValue() { - if(this.s < 0) { - if(this.t == 1) return this[0]-this.DV; - else if(this.t == 0) return -1; - } - else if(this.t == 1) return this[0]; - else if(this.t == 0) return 0; - // assumes 16 < DB < 32 - return ((this[1]&((1<<(32-this.DB))-1))<>24; } - - // (public) return value as short (assumes DB>=16) - function bnShortValue() { return (this.t==0)?this.s:(this[0]<<16)>>16; } - - // (protected) return x s.t. r^x < DV - function bnpChunkSize(r) { return Math.floor(Math.LN2*this.DB/Math.log(r)); } - - // (public) 0 if this == 0, 1 if this > 0 - function bnSigNum() { - if(this.s < 0) return -1; - else if(this.t <= 0 || (this.t == 1 && this[0] <= 0)) return 0; - else return 1; - } - - // (protected) convert to radix string - function bnpToRadix(b) { - if(b == null) b = 10; - if(this.signum() == 0 || b < 2 || b > 36) return "0"; - var cs = this.chunkSize(b); - var a = Math.pow(b,cs); - var d = nbv(a), y = nbi(), z = nbi(), r = ""; - this.divRemTo(d,y,z); - while(y.signum() > 0) { - r = (a+z.intValue()).toString(b).substr(1) + r; - y.divRemTo(d,y,z); - } - return z.intValue().toString(b) + r; - } - - // (protected) convert from radix string - function bnpFromRadix(s,b) { - this.fromInt(0); - if(b == null) b = 10; - var cs = this.chunkSize(b); - var d = Math.pow(b,cs), mi = false, j = 0, w = 0; - for(var i = 0; i < s.length; ++i) { - var x = intAt(s,i); - if(x < 0) { - if(s.charAt(i) == "-" && this.signum() == 0) mi = true; - continue; - } - w = b*w+x; - if(++j >= cs) { - this.dMultiply(d); - this.dAddOffset(w,0); - j = 0; - w = 0; - } - } - if(j > 0) { - this.dMultiply(Math.pow(b,j)); - this.dAddOffset(w,0); - } - if(mi) BigInteger.ZERO.subTo(this,this); - } - - // (protected) alternate constructor - function bnpFromNumber(a,b,c) { - if("number" == typeof b) { - // new BigInteger(int,int,RNG) - if(a < 2) this.fromInt(1); - else { - this.fromNumber(a,c); - if(!this.testBit(a-1)) // force MSB set - this.bitwiseTo(BigInteger.ONE.shiftLeft(a-1),op_or,this); - if(this.isEven()) this.dAddOffset(1,0); // force odd - while(!this.isProbablePrime(b)) { - this.dAddOffset(2,0); - if(this.bitLength() > a) this.subTo(BigInteger.ONE.shiftLeft(a-1),this); - } - } - } - else { - // new BigInteger(int,RNG) - var x = new Array(), t = a&7; - x.length = (a>>3)+1; - b.nextBytes(x); - if(t > 0) x[0] &= ((1< 0) { - if(p < this.DB && (d = this[i]>>p) != (this.s&this.DM)>>p) - r[k++] = d|(this.s<<(this.DB-p)); - while(i >= 0) { - if(p < 8) { - d = (this[i]&((1<>(p+=this.DB-8); - } - else { - d = (this[i]>>(p-=8))&0xff; - if(p <= 0) { p += this.DB; --i; } - } - if((d&0x80) != 0) d |= -256; - if(k == 0 && (this.s&0x80) != (d&0x80)) ++k; - if(k > 0 || d != this.s) r[k++] = d; - } - } - return r; - } - - function bnEquals(a) { return(this.compareTo(a)==0); } - function bnMin(a) { return(this.compareTo(a)<0)?this:a; } - function bnMax(a) { return(this.compareTo(a)>0)?this:a; } - - // (protected) r = this op a (bitwise) - function bnpBitwiseTo(a,op,r) { - var i, f, m = Math.min(a.t,this.t); - for(i = 0; i < m; ++i) r[i] = op(this[i],a[i]); - if(a.t < this.t) { - f = a.s&this.DM; - for(i = m; i < this.t; ++i) r[i] = op(this[i],f); - r.t = this.t; - } - else { - f = this.s&this.DM; - for(i = m; i < a.t; ++i) r[i] = op(f,a[i]); - r.t = a.t; - } - r.s = op(this.s,a.s); - r.clamp(); - } - - // (public) this & a - function op_and(x,y) { return x&y; } - function bnAnd(a) { var r = nbi(); this.bitwiseTo(a,op_and,r); return r; } - - // (public) this | a - function op_or(x,y) { return x|y; } - function bnOr(a) { var r = nbi(); this.bitwiseTo(a,op_or,r); return r; } - - // (public) this ^ a - function op_xor(x,y) { return x^y; } - function bnXor(a) { var r = nbi(); this.bitwiseTo(a,op_xor,r); return r; } - - // (public) this & ~a - function op_andnot(x,y) { return x&~y; } - function bnAndNot(a) { var r = nbi(); this.bitwiseTo(a,op_andnot,r); return r; } - - // (public) ~this - function bnNot() { - var r = nbi(); - for(var i = 0; i < this.t; ++i) r[i] = this.DM&~this[i]; - r.t = this.t; - r.s = ~this.s; - return r; - } - - // (public) this << n - function bnShiftLeft(n) { - var r = nbi(); - if(n < 0) this.rShiftTo(-n,r); else this.lShiftTo(n,r); - return r; - } - - // (public) this >> n - function bnShiftRight(n) { - var r = nbi(); - if(n < 0) this.lShiftTo(-n,r); else this.rShiftTo(n,r); - return r; - } - - // return index of lowest 1-bit in x, x < 2^31 - function lbit(x) { - if(x == 0) return -1; - var r = 0; - if((x&0xffff) == 0) { x >>= 16; r += 16; } - if((x&0xff) == 0) { x >>= 8; r += 8; } - if((x&0xf) == 0) { x >>= 4; r += 4; } - if((x&3) == 0) { x >>= 2; r += 2; } - if((x&1) == 0) ++r; - return r; - } - - // (public) returns index of lowest 1-bit (or -1 if none) - function bnGetLowestSetBit() { - for(var i = 0; i < this.t; ++i) - if(this[i] != 0) return i*this.DB+lbit(this[i]); - if(this.s < 0) return this.t*this.DB; - return -1; - } - - // return number of 1 bits in x - function cbit(x) { - var r = 0; - while(x != 0) { x &= x-1; ++r; } - return r; - } - - // (public) return number of set bits - function bnBitCount() { - var r = 0, x = this.s&this.DM; - for(var i = 0; i < this.t; ++i) r += cbit(this[i]^x); - return r; - } - - // (public) true iff nth bit is set - function bnTestBit(n) { - var j = Math.floor(n/this.DB); - if(j >= this.t) return(this.s!=0); - return((this[j]&(1<<(n%this.DB)))!=0); - } - - // (protected) this op (1<>= this.DB; - } - if(a.t < this.t) { - c += a.s; - while(i < this.t) { - c += this[i]; - r[i++] = c&this.DM; - c >>= this.DB; - } - c += this.s; - } - else { - c += this.s; - while(i < a.t) { - c += a[i]; - r[i++] = c&this.DM; - c >>= this.DB; - } - c += a.s; - } - r.s = (c<0)?-1:0; - if(c > 0) r[i++] = c; - else if(c < -1) r[i++] = this.DV+c; - r.t = i; - r.clamp(); - } - - // (public) this + a - function bnAdd(a) { var r = nbi(); this.addTo(a,r); return r; } - - // (public) this - a - function bnSubtract(a) { var r = nbi(); this.subTo(a,r); return r; } - - // (public) this * a - function bnMultiply(a) { var r = nbi(); this.multiplyTo(a,r); return r; } - - // (public) this^2 - function bnSquare() { var r = nbi(); this.squareTo(r); return r; } - - // (public) this / a - function bnDivide(a) { var r = nbi(); this.divRemTo(a,r,null); return r; } - - // (public) this % a - function bnRemainder(a) { var r = nbi(); this.divRemTo(a,null,r); return r; } - - // (public) [this/a,this%a] - function bnDivideAndRemainder(a) { - var q = nbi(), r = nbi(); - this.divRemTo(a,q,r); - return new Array(q,r); - } - - // (protected) this *= n, this >= 0, 1 < n < DV - function bnpDMultiply(n) { - this[this.t] = this.am(0,n-1,this,0,0,this.t); - ++this.t; - this.clamp(); - } - - // (protected) this += n << w words, this >= 0 - function bnpDAddOffset(n,w) { - if(n == 0) return; - while(this.t <= w) this[this.t++] = 0; - this[w] += n; - while(this[w] >= this.DV) { - this[w] -= this.DV; - if(++w >= this.t) this[this.t++] = 0; - ++this[w]; - } - } - - // A "null" reducer - function NullExp() {} - function nNop(x) { return x; } - function nMulTo(x,y,r) { x.multiplyTo(y,r); } - function nSqrTo(x,r) { x.squareTo(r); } - - NullExp.prototype.convert = nNop; - NullExp.prototype.revert = nNop; - NullExp.prototype.mulTo = nMulTo; - NullExp.prototype.sqrTo = nSqrTo; - - // (public) this^e - function bnPow(e) { return this.exp(e,new NullExp()); } - - // (protected) r = lower n words of "this * a", a.t <= n - // "this" should be the larger one if appropriate. - function bnpMultiplyLowerTo(a,n,r) { - var i = Math.min(this.t+a.t,n); - r.s = 0; // assumes a,this >= 0 - r.t = i; - while(i > 0) r[--i] = 0; - var j; - for(j = r.t-this.t; i < j; ++i) r[i+this.t] = this.am(0,a[i],r,i,0,this.t); - for(j = Math.min(a.t,n); i < j; ++i) this.am(0,a[i],r,i,0,n-i); - r.clamp(); - } - - // (protected) r = "this * a" without lower n words, n > 0 - // "this" should be the larger one if appropriate. - function bnpMultiplyUpperTo(a,n,r) { - --n; - var i = r.t = this.t+a.t-n; - r.s = 0; // assumes a,this >= 0 - while(--i >= 0) r[i] = 0; - for(i = Math.max(n-this.t,0); i < a.t; ++i) - r[this.t+i-n] = this.am(n-i,a[i],r,0,0,this.t+i-n); - r.clamp(); - r.drShiftTo(1,r); - } - - // Barrett modular reduction - function Barrett(m) { - // setup Barrett - this.r2 = nbi(); - this.q3 = nbi(); - BigInteger.ONE.dlShiftTo(2*m.t,this.r2); - this.mu = this.r2.divide(m); - this.m = m; - } - - function barrettConvert(x) { - if(x.s < 0 || x.t > 2*this.m.t) return x.mod(this.m); - else if(x.compareTo(this.m) < 0) return x; - else { var r = nbi(); x.copyTo(r); this.reduce(r); return r; } - } - - function barrettRevert(x) { return x; } - - // x = x mod m (HAC 14.42) - function barrettReduce(x) { - x.drShiftTo(this.m.t-1,this.r2); - if(x.t > this.m.t+1) { x.t = this.m.t+1; x.clamp(); } - this.mu.multiplyUpperTo(this.r2,this.m.t+1,this.q3); - this.m.multiplyLowerTo(this.q3,this.m.t+1,this.r2); - while(x.compareTo(this.r2) < 0) x.dAddOffset(1,this.m.t+1); - x.subTo(this.r2,x); - while(x.compareTo(this.m) >= 0) x.subTo(this.m,x); - } - - // r = x^2 mod m; x != r - function barrettSqrTo(x,r) { x.squareTo(r); this.reduce(r); } - - // r = x*y mod m; x,y != r - function barrettMulTo(x,y,r) { x.multiplyTo(y,r); this.reduce(r); } - - Barrett.prototype.convert = barrettConvert; - Barrett.prototype.revert = barrettRevert; - Barrett.prototype.reduce = barrettReduce; - Barrett.prototype.mulTo = barrettMulTo; - Barrett.prototype.sqrTo = barrettSqrTo; - - // (public) this^e % m (HAC 14.85) - function bnModPow(e,m) { - var i = e.bitLength(), k, r = nbv(1), z; - if(i <= 0) return r; - else if(i < 18) k = 1; - else if(i < 48) k = 3; - else if(i < 144) k = 4; - else if(i < 768) k = 5; - else k = 6; - if(i < 8) - z = new Classic(m); - else if(m.isEven()) - z = new Barrett(m); - else - z = new Montgomery(m); - - // precomputation - var g = new Array(), n = 3, k1 = k-1, km = (1< 1) { - var g2 = nbi(); - z.sqrTo(g[1],g2); - while(n <= km) { - g[n] = nbi(); - z.mulTo(g2,g[n-2],g[n]); - n += 2; - } - } - - var j = e.t-1, w, is1 = true, r2 = nbi(), t; - i = nbits(e[j])-1; - while(j >= 0) { - if(i >= k1) w = (e[j]>>(i-k1))&km; - else { - w = (e[j]&((1<<(i+1))-1))<<(k1-i); - if(j > 0) w |= e[j-1]>>(this.DB+i-k1); - } - - n = k; - while((w&1) == 0) { w >>= 1; --n; } - if((i -= n) < 0) { i += this.DB; --j; } - if(is1) { // ret == 1, don't bother squaring or multiplying it - g[w].copyTo(r); - is1 = false; - } - else { - while(n > 1) { z.sqrTo(r,r2); z.sqrTo(r2,r); n -= 2; } - if(n > 0) z.sqrTo(r,r2); else { t = r; r = r2; r2 = t; } - z.mulTo(r2,g[w],r); - } - - while(j >= 0 && (e[j]&(1< 0) { - x.rShiftTo(g,x); - y.rShiftTo(g,y); - } - while(x.signum() > 0) { - if((i = x.getLowestSetBit()) > 0) x.rShiftTo(i,x); - if((i = y.getLowestSetBit()) > 0) y.rShiftTo(i,y); - if(x.compareTo(y) >= 0) { - x.subTo(y,x); - x.rShiftTo(1,x); - } - else { - y.subTo(x,y); - y.rShiftTo(1,y); - } - } - if(g > 0) y.lShiftTo(g,y); - return y; - } - - // (protected) this % n, n < 2^26 - function bnpModInt(n) { - if(n <= 0) return 0; - var d = this.DV%n, r = (this.s<0)?n-1:0; - if(this.t > 0) - if(d == 0) r = this[0]%n; - else for(var i = this.t-1; i >= 0; --i) r = (d*r+this[i])%n; - return r; - } - - // (public) 1/this % m (HAC 14.61) - function bnModInverse(m) { - var ac = m.isEven(); - if((this.isEven() && ac) || m.signum() == 0) return BigInteger.ZERO; - var u = m.clone(), v = this.clone(); - var a = nbv(1), b = nbv(0), c = nbv(0), d = nbv(1); - while(u.signum() != 0) { - while(u.isEven()) { - u.rShiftTo(1,u); - if(ac) { - if(!a.isEven() || !b.isEven()) { a.addTo(this,a); b.subTo(m,b); } - a.rShiftTo(1,a); - } - else if(!b.isEven()) b.subTo(m,b); - b.rShiftTo(1,b); - } - while(v.isEven()) { - v.rShiftTo(1,v); - if(ac) { - if(!c.isEven() || !d.isEven()) { c.addTo(this,c); d.subTo(m,d); } - c.rShiftTo(1,c); - } - else if(!d.isEven()) d.subTo(m,d); - d.rShiftTo(1,d); - } - if(u.compareTo(v) >= 0) { - u.subTo(v,u); - if(ac) a.subTo(c,a); - b.subTo(d,b); - } - else { - v.subTo(u,v); - if(ac) c.subTo(a,c); - d.subTo(b,d); - } - } - if(v.compareTo(BigInteger.ONE) != 0) return BigInteger.ZERO; - if(d.compareTo(m) >= 0) return d.subtract(m); - if(d.signum() < 0) d.addTo(m,d); else return d; - if(d.signum() < 0) return d.add(m); else return d; - } - - var lowprimes = [2,3,5,7,11,13,17,19,23,29,31,37,41,43,47,53,59,61,67,71,73,79,83,89,97,101,103,107,109,113,127,131,137,139,149,151,157,163,167,173,179,181,191,193,197,199,211,223,227,229,233,239,241,251,257,263,269,271,277,281,283,293,307,311,313,317,331,337,347,349,353,359,367,373,379,383,389,397,401,409,419,421,431,433,439,443,449,457,461,463,467,479,487,491,499,503,509,521,523,541,547,557,563,569,571,577,587,593,599,601,607,613,617,619,631,641,643,647,653,659,661,673,677,683,691,701,709,719,727,733,739,743,751,757,761,769,773,787,797,809,811,821,823,827,829,839,853,857,859,863,877,881,883,887,907,911,919,929,937,941,947,953,967,971,977,983,991,997]; - var lplim = (1<<26)/lowprimes[lowprimes.length-1]; - - // (public) test primality with certainty >= 1-.5^t - function bnIsProbablePrime(t) { - var i, x = this.abs(); - if(x.t == 1 && x[0] <= lowprimes[lowprimes.length-1]) { - for(i = 0; i < lowprimes.length; ++i) - if(x[0] == lowprimes[i]) return true; - return false; - } - if(x.isEven()) return false; - i = 1; - while(i < lowprimes.length) { - var m = lowprimes[i], j = i+1; - while(j < lowprimes.length && m < lplim) m *= lowprimes[j++]; - m = x.modInt(m); - while(i < j) if(m%lowprimes[i++] == 0) return false; - } - return x.millerRabin(t); - } - - // (protected) true if probably prime (HAC 4.24, Miller-Rabin) - function bnpMillerRabin(t) { - var n1 = this.subtract(BigInteger.ONE); - var k = n1.getLowestSetBit(); - if(k <= 0) return false; - var r = n1.shiftRight(k); - t = (t+1)>>1; - if(t > lowprimes.length) t = lowprimes.length; - var a = nbi(); - for(var i = 0; i < t; ++i) { - //Pick bases at random, instead of starting at 2 - a.fromInt(lowprimes[Math.floor(Math.random()*lowprimes.length)]); - var y = a.modPow(r,this); - if(y.compareTo(BigInteger.ONE) != 0 && y.compareTo(n1) != 0) { - var j = 1; - while(j++ < k && y.compareTo(n1) != 0) { - y = y.modPowInt(2,this); - if(y.compareTo(BigInteger.ONE) == 0) return false; - } - if(y.compareTo(n1) != 0) return false; - } - } - return true; - } - - // protected - BigInteger.prototype.chunkSize = bnpChunkSize; - BigInteger.prototype.toRadix = bnpToRadix; - BigInteger.prototype.fromRadix = bnpFromRadix; - BigInteger.prototype.fromNumber = bnpFromNumber; - BigInteger.prototype.bitwiseTo = bnpBitwiseTo; - BigInteger.prototype.changeBit = bnpChangeBit; - BigInteger.prototype.addTo = bnpAddTo; - BigInteger.prototype.dMultiply = bnpDMultiply; - BigInteger.prototype.dAddOffset = bnpDAddOffset; - BigInteger.prototype.multiplyLowerTo = bnpMultiplyLowerTo; - BigInteger.prototype.multiplyUpperTo = bnpMultiplyUpperTo; - BigInteger.prototype.modInt = bnpModInt; - BigInteger.prototype.millerRabin = bnpMillerRabin; - - // public - BigInteger.prototype.clone = bnClone; - BigInteger.prototype.intValue = bnIntValue; - BigInteger.prototype.byteValue = bnByteValue; - BigInteger.prototype.shortValue = bnShortValue; - BigInteger.prototype.signum = bnSigNum; - BigInteger.prototype.toByteArray = bnToByteArray; - BigInteger.prototype.equals = bnEquals; - BigInteger.prototype.min = bnMin; - BigInteger.prototype.max = bnMax; - BigInteger.prototype.and = bnAnd; - BigInteger.prototype.or = bnOr; - BigInteger.prototype.xor = bnXor; - BigInteger.prototype.andNot = bnAndNot; - BigInteger.prototype.not = bnNot; - BigInteger.prototype.shiftLeft = bnShiftLeft; - BigInteger.prototype.shiftRight = bnShiftRight; - BigInteger.prototype.getLowestSetBit = bnGetLowestSetBit; - BigInteger.prototype.bitCount = bnBitCount; - BigInteger.prototype.testBit = bnTestBit; - BigInteger.prototype.setBit = bnSetBit; - BigInteger.prototype.clearBit = bnClearBit; - BigInteger.prototype.flipBit = bnFlipBit; - BigInteger.prototype.add = bnAdd; - BigInteger.prototype.subtract = bnSubtract; - BigInteger.prototype.multiply = bnMultiply; - BigInteger.prototype.divide = bnDivide; - BigInteger.prototype.remainder = bnRemainder; - BigInteger.prototype.divideAndRemainder = bnDivideAndRemainder; - BigInteger.prototype.modPow = bnModPow; - BigInteger.prototype.modInverse = bnModInverse; - BigInteger.prototype.pow = bnPow; - BigInteger.prototype.gcd = bnGCD; - BigInteger.prototype.isProbablePrime = bnIsProbablePrime; - - // JSBN-specific extension - BigInteger.prototype.square = bnSquare; - - // Expose the Barrett function - BigInteger.prototype.Barrett = Barrett - - // BigInteger interfaces not implemented in jsbn: - - // BigInteger(int signum, byte[] magnitude) - // double doubleValue() - // float floatValue() - // int hashCode() - // long longValue() - // static BigInteger valueOf(long val) - - // Random number generator - requires a PRNG backend, e.g. prng4.js - - // For best results, put code like - // - // in your main HTML document. - - var rng_state; - var rng_pool; - var rng_pptr; - - // Mix in a 32-bit integer into the pool - function rng_seed_int(x) { - rng_pool[rng_pptr++] ^= x & 255; - rng_pool[rng_pptr++] ^= (x >> 8) & 255; - rng_pool[rng_pptr++] ^= (x >> 16) & 255; - rng_pool[rng_pptr++] ^= (x >> 24) & 255; - if(rng_pptr >= rng_psize) rng_pptr -= rng_psize; - } - - // Mix in the current time (w/milliseconds) into the pool - function rng_seed_time() { - rng_seed_int(new Date().getTime()); - } - - // Initialize the pool with junk if needed. - if(rng_pool == null) { - rng_pool = new Array(); - rng_pptr = 0; - var t; - if(typeof window !== "undefined" && window.crypto) { - if (window.crypto.getRandomValues) { - // Use webcrypto if available - var ua = new Uint8Array(32); - window.crypto.getRandomValues(ua); - for(t = 0; t < 32; ++t) - rng_pool[rng_pptr++] = ua[t]; - } - else if(navigator.appName == "Netscape" && navigator.appVersion < "5") { - // Extract entropy (256 bits) from NS4 RNG if available - var z = window.crypto.random(32); - for(t = 0; t < z.length; ++t) - rng_pool[rng_pptr++] = z.charCodeAt(t) & 255; - } - } - while(rng_pptr < rng_psize) { // extract some randomness from Math.random() - t = Math.floor(65536 * Math.random()); - rng_pool[rng_pptr++] = t >>> 8; - rng_pool[rng_pptr++] = t & 255; - } - rng_pptr = 0; - rng_seed_time(); - //rng_seed_int(window.screenX); - //rng_seed_int(window.screenY); - } - - function rng_get_byte() { - if(rng_state == null) { - rng_seed_time(); - rng_state = prng_newstate(); - rng_state.init(rng_pool); - for(rng_pptr = 0; rng_pptr < rng_pool.length; ++rng_pptr) - rng_pool[rng_pptr] = 0; - rng_pptr = 0; - //rng_pool = null; - } - // TODO: allow reseeding after first request - return rng_state.next(); - } - - function rng_get_bytes(ba) { - var i; - for(i = 0; i < ba.length; ++i) ba[i] = rng_get_byte(); - } - - function SecureRandom() {} - - SecureRandom.prototype.nextBytes = rng_get_bytes; - - // prng4.js - uses Arcfour as a PRNG - - function Arcfour() { - this.i = 0; - this.j = 0; - this.S = new Array(); - } - - // Initialize arcfour context from key, an array of ints, each from [0..255] - function ARC4init(key) { - var i, j, t; - for(i = 0; i < 256; ++i) - this.S[i] = i; - j = 0; - for(i = 0; i < 256; ++i) { - j = (j + this.S[i] + key[i % key.length]) & 255; - t = this.S[i]; - this.S[i] = this.S[j]; - this.S[j] = t; - } - this.i = 0; - this.j = 0; - } - - function ARC4next() { - var t; - this.i = (this.i + 1) & 255; - this.j = (this.j + this.S[this.i]) & 255; - t = this.S[this.i]; - this.S[this.i] = this.S[this.j]; - this.S[this.j] = t; - return this.S[(t + this.S[this.i]) & 255]; - } - - Arcfour.prototype.init = ARC4init; - Arcfour.prototype.next = ARC4next; - - // Plug in your RNG constructor here - function prng_newstate() { - return new Arcfour(); - } - - // Pool size must be a multiple of 4 and greater than 32. - // An array of bytes the size of the pool will be passed to init() - var rng_psize = 256; - - if (typeof exports !== 'undefined') { - exports = module.exports = { - BigInteger: BigInteger, - SecureRandom: SecureRandom, - }; - } else { - this.BigInteger = BigInteger; - this.SecureRandom = SecureRandom; - } - -}).call(this); - -},{}],65:[function(require,module,exports){ -/** - * JSONSchema Validator - Validates JavaScript objects using JSON Schemas - * (http://www.json.com/json-schema-proposal/) - * - * Copyright (c) 2007 Kris Zyp SitePen (www.sitepen.com) - * Licensed under the MIT (MIT-LICENSE.txt) license. -To use the validator call the validate function with an instance object and an optional schema object. -If a schema is provided, it will be used to validate. If the instance object refers to a schema (self-validating), -that schema will be used to validate and the schema parameter is not necessary (if both exist, -both validations will occur). -The validate method will return an array of validation errors. If there are no errors, then an -empty list will be returned. A validation error will have two properties: -"property" which indicates which property had the error -"message" which indicates what the error was - */ -({define:typeof define!="undefined"?define:function(deps, factory){module.exports = factory();}}). -define([], function(){ -var exports = validate; -// setup primitive classes to be JSON Schema types -exports.Integer = {type:"integer"}; -var primitiveConstructors = { - String: String, - Boolean: Boolean, - Number: Number, - Object: Object, - Array: Array, - Date: Date -} -exports.validate = validate; -function validate(/*Any*/instance,/*Object*/schema) { - // Summary: - // To use the validator call JSONSchema.validate with an instance object and an optional schema object. - // If a schema is provided, it will be used to validate. If the instance object refers to a schema (self-validating), - // that schema will be used to validate and the schema parameter is not necessary (if both exist, - // both validations will occur). - // The validate method will return an object with two properties: - // valid: A boolean indicating if the instance is valid by the schema - // errors: An array of validation errors. If there are no errors, then an - // empty list will be returned. A validation error will have two properties: - // property: which indicates which property had the error - // message: which indicates what the error was - // - return validate(instance, schema, {changing: false});//, coerce: false, existingOnly: false}); - }; -exports.checkPropertyChange = function(/*Any*/value,/*Object*/schema, /*String*/property) { - // Summary: - // The checkPropertyChange method will check to see if an value can legally be in property with the given schema - // This is slightly different than the validate method in that it will fail if the schema is readonly and it will - // not check for self-validation, it is assumed that the passed in value is already internally valid. - // The checkPropertyChange method will return the same object type as validate, see JSONSchema.validate for - // information. - // - return validate(value, schema, {changing: property || "property"}); - }; -var validate = exports._validate = function(/*Any*/instance,/*Object*/schema,/*Object*/options) { - - if (!options) options = {}; - var _changing = options.changing; - - function getType(schema){ - return schema.type || (primitiveConstructors[schema.name] == schema && schema.name.toLowerCase()); - } - var errors = []; - // validate a value against a property definition - function checkProp(value, schema, path,i){ - - var l; - path += path ? typeof i == 'number' ? '[' + i + ']' : typeof i == 'undefined' ? '' : '.' + i : i; - function addError(message){ - errors.push({property:path,message:message}); - } - - if((typeof schema != 'object' || schema instanceof Array) && (path || typeof schema != 'function') && !(schema && getType(schema))){ - if(typeof schema == 'function'){ - if(!(value instanceof schema)){ - addError("is not an instance of the class/constructor " + schema.name); - } - }else if(schema){ - addError("Invalid schema/property definition " + schema); - } - return null; - } - if(_changing && schema.readonly){ - addError("is a readonly field, it can not be changed"); - } - if(schema['extends']){ // if it extends another schema, it must pass that schema as well - checkProp(value,schema['extends'],path,i); - } - // validate a value against a type definition - function checkType(type,value){ - if(type){ - if(typeof type == 'string' && type != 'any' && - (type == 'null' ? value !== null : typeof value != type) && - !(value instanceof Array && type == 'array') && - !(value instanceof Date && type == 'date') && - !(type == 'integer' && value%1===0)){ - return [{property:path,message:(typeof value) + " value found, but a " + type + " is required"}]; - } - if(type instanceof Array){ - var unionErrors=[]; - for(var j = 0; j < type.length; j++){ // a union type - if(!(unionErrors=checkType(type[j],value)).length){ - break; - } - } - if(unionErrors.length){ - return unionErrors; - } - }else if(typeof type == 'object'){ - var priorErrors = errors; - errors = []; - checkProp(value,type,path); - var theseErrors = errors; - errors = priorErrors; - return theseErrors; - } - } - return []; - } - if(value === undefined){ - if(schema.required){ - addError("is missing and it is required"); - } - }else{ - errors = errors.concat(checkType(getType(schema),value)); - if(schema.disallow && !checkType(schema.disallow,value).length){ - addError(" disallowed value was matched"); - } - if(value !== null){ - if(value instanceof Array){ - if(schema.items){ - var itemsIsArray = schema.items instanceof Array; - var propDef = schema.items; - for (i = 0, l = value.length; i < l; i += 1) { - if (itemsIsArray) - propDef = schema.items[i]; - if (options.coerce) - value[i] = options.coerce(value[i], propDef); - errors.concat(checkProp(value[i],propDef,path,i)); - } - } - if(schema.minItems && value.length < schema.minItems){ - addError("There must be a minimum of " + schema.minItems + " in the array"); - } - if(schema.maxItems && value.length > schema.maxItems){ - addError("There must be a maximum of " + schema.maxItems + " in the array"); - } - }else if(schema.properties || schema.additionalProperties){ - errors.concat(checkObj(value, schema.properties, path, schema.additionalProperties)); - } - if(schema.pattern && typeof value == 'string' && !value.match(schema.pattern)){ - addError("does not match the regex pattern " + schema.pattern); - } - if(schema.maxLength && typeof value == 'string' && value.length > schema.maxLength){ - addError("may only be " + schema.maxLength + " characters long"); - } - if(schema.minLength && typeof value == 'string' && value.length < schema.minLength){ - addError("must be at least " + schema.minLength + " characters long"); - } - if(typeof schema.minimum !== undefined && typeof value == typeof schema.minimum && - schema.minimum > value){ - addError("must have a minimum value of " + schema.minimum); - } - if(typeof schema.maximum !== undefined && typeof value == typeof schema.maximum && - schema.maximum < value){ - addError("must have a maximum value of " + schema.maximum); - } - if(schema['enum']){ - var enumer = schema['enum']; - l = enumer.length; - var found; - for(var j = 0; j < l; j++){ - if(enumer[j]===value){ - found=1; - break; - } - } - if(!found){ - addError("does not have a value in the enumeration " + enumer.join(", ")); - } - } - if(typeof schema.maxDecimal == 'number' && - (value.toString().match(new RegExp("\\.[0-9]{" + (schema.maxDecimal + 1) + ",}")))){ - addError("may only have " + schema.maxDecimal + " digits of decimal places"); - } - } - } - return null; - } - // validate an object against a schema - function checkObj(instance,objTypeDef,path,additionalProp){ - - if(typeof objTypeDef =='object'){ - if(typeof instance != 'object' || instance instanceof Array){ - errors.push({property:path,message:"an object is required"}); - } - - for(var i in objTypeDef){ - if(objTypeDef.hasOwnProperty(i)){ - var value = instance[i]; - // skip _not_ specified properties - if (value === undefined && options.existingOnly) continue; - var propDef = objTypeDef[i]; - // set default - if(value === undefined && propDef["default"]){ - value = instance[i] = propDef["default"]; - } - if(options.coerce && i in instance){ - value = instance[i] = options.coerce(value, propDef); - } - checkProp(value,propDef,path,i); - } - } - } - for(i in instance){ - if(instance.hasOwnProperty(i) && !(i.charAt(0) == '_' && i.charAt(1) == '_') && objTypeDef && !objTypeDef[i] && additionalProp===false){ - if (options.filter) { - delete instance[i]; - continue; - } else { - errors.push({property:path,message:(typeof value) + "The property " + i + - " is not defined in the schema and the schema does not allow additional properties"}); - } - } - var requires = objTypeDef && objTypeDef[i] && objTypeDef[i].requires; - if(requires && !(requires in instance)){ - errors.push({property:path,message:"the presence of the property " + i + " requires that " + requires + " also be present"}); - } - value = instance[i]; - if(additionalProp && (!(objTypeDef && typeof objTypeDef == 'object') || !(i in objTypeDef))){ - if(options.coerce){ - value = instance[i] = options.coerce(value, additionalProp); - } - checkProp(value,additionalProp,path,i); - } - if(!_changing && value && value.$schema){ - errors = errors.concat(checkProp(value,value.$schema,path,i)); - } - } - return errors; - } - if(schema){ - checkProp(instance,schema,'',_changing || ''); - } - if(!_changing && instance && instance.$schema){ - checkProp(instance,instance.$schema,'',''); - } - return {valid:!errors.length,errors:errors}; -}; -exports.mustBeValid = function(result){ - // summary: - // This checks to ensure that the result is valid and will throw an appropriate error message if it is not - // result: the result returned from checkPropertyChange or validate - if(!result.valid){ - throw new TypeError(result.errors.map(function(error){return "for property " + error.property + ': ' + error.message;}).join(", \n")); - } -} - -return exports; -}); - -},{}],66:[function(require,module,exports){ -exports = module.exports = stringify -exports.getSerialize = serializer - -function stringify(obj, replacer, spaces, cycleReplacer) { - return JSON.stringify(obj, serializer(replacer, cycleReplacer), spaces) -} - -function serializer(replacer, cycleReplacer) { - var stack = [], keys = [] - - if (cycleReplacer == null) cycleReplacer = function(key, value) { - if (stack[0] === value) return "[Circular ~]" - return "[Circular ~." + keys.slice(0, stack.indexOf(value)).join(".") + "]" - } - - return function(key, value) { - if (stack.length > 0) { - var thisPos = stack.indexOf(this) - ~thisPos ? stack.splice(thisPos + 1) : stack.push(this) - ~thisPos ? keys.splice(thisPos, Infinity, key) : keys.push(key) - if (~stack.indexOf(value)) value = cycleReplacer.call(this, key, value) - } - else stack.push(value) - - return replacer == null ? value : replacer.call(this, key, value) - } -} - -},{}],67:[function(require,module,exports){ -var untilde = function(str) { - return str.replace(/~./g, function(m) { - switch (m) { - case "~0": - return "~"; - case "~1": - return "/"; - } - throw new Error("Invalid tilde escape: " + m); - }); -} - -var traverse = function(obj, pointer, value) { - // assert(isArray(pointer)) - var part = untilde(pointer.shift()); - if(!obj.hasOwnProperty(part)) { - return null; - } - if(pointer.length !== 0) { // keep traversin! - return traverse(obj[part], pointer, value); - } - // we're done - if(typeof value === "undefined") { - // just reading - return obj[part]; - } - // set new value, return old value - var old_value = obj[part]; - if(value === null) { - delete obj[part]; - } else { - obj[part] = value; - } - return old_value; -} - -var validate_input = function(obj, pointer) { - if(typeof obj !== "object") { - throw new Error("Invalid input object."); - } - - if(pointer === "") { - return []; - } - - if(!pointer) { - throw new Error("Invalid JSON pointer."); - } - - pointer = pointer.split("/"); - var first = pointer.shift(); - if (first !== "") { - throw new Error("Invalid JSON pointer."); - } - - return pointer; -} - -var get = function(obj, pointer) { - pointer = validate_input(obj, pointer); - if (pointer.length === 0) { - return obj; - } - return traverse(obj, pointer); -} - -var set = function(obj, pointer, value) { - pointer = validate_input(obj, pointer); - if (pointer.length === 0) { - throw new Error("Invalid JSON pointer for set.") - } - return traverse(obj, pointer, value); -} - -exports.get = get -exports.set = set - -},{}],68:[function(require,module,exports){ -/* - * lib/jsprim.js: utilities for primitive JavaScript types - */ - -var mod_assert = require('assert'); -var mod_util = require('util'); - -var mod_extsprintf = require('extsprintf'); -var mod_verror = require('verror'); -var mod_jsonschema = require('json-schema'); - -/* - * Public interface - */ -exports.deepCopy = deepCopy; -exports.deepEqual = deepEqual; -exports.isEmpty = isEmpty; -exports.hasKey = hasKey; -exports.forEachKey = forEachKey; -exports.pluck = pluck; -exports.flattenObject = flattenObject; -exports.flattenIter = flattenIter; -exports.validateJsonObject = validateJsonObjectJS; -exports.validateJsonObjectJS = validateJsonObjectJS; -exports.randElt = randElt; -exports.extraProperties = extraProperties; -exports.mergeObjects = mergeObjects; - -exports.startsWith = startsWith; -exports.endsWith = endsWith; - -exports.iso8601 = iso8601; -exports.rfc1123 = rfc1123; -exports.parseDateTime = parseDateTime; - -exports.hrtimediff = hrtimeDiff; -exports.hrtimeDiff = hrtimeDiff; -exports.hrtimeAccum = hrtimeAccum; -exports.hrtimeAdd = hrtimeAdd; -exports.hrtimeNanosec = hrtimeNanosec; -exports.hrtimeMicrosec = hrtimeMicrosec; -exports.hrtimeMillisec = hrtimeMillisec; - - -/* - * Deep copy an acyclic *basic* Javascript object. This only handles basic - * scalars (strings, numbers, booleans) and arbitrarily deep arrays and objects - * containing these. This does *not* handle instances of other classes. - */ -function deepCopy(obj) -{ - var ret, key; - var marker = '__deepCopy'; - - if (obj && obj[marker]) - throw (new Error('attempted deep copy of cyclic object')); - - if (obj && obj.constructor == Object) { - ret = {}; - obj[marker] = true; - - for (key in obj) { - if (key == marker) - continue; - - ret[key] = deepCopy(obj[key]); - } - - delete (obj[marker]); - return (ret); - } - - if (obj && obj.constructor == Array) { - ret = []; - obj[marker] = true; - - for (key = 0; key < obj.length; key++) - ret.push(deepCopy(obj[key])); - - delete (obj[marker]); - return (ret); - } - - /* - * It must be a primitive type -- just return it. - */ - return (obj); -} - -function deepEqual(obj1, obj2) -{ - if (typeof (obj1) != typeof (obj2)) - return (false); - - if (obj1 === null || obj2 === null || typeof (obj1) != 'object') - return (obj1 === obj2); - - if (obj1.constructor != obj2.constructor) - return (false); - - var k; - for (k in obj1) { - if (!obj2.hasOwnProperty(k)) - return (false); - - if (!deepEqual(obj1[k], obj2[k])) - return (false); - } - - for (k in obj2) { - if (!obj1.hasOwnProperty(k)) - return (false); - } - - return (true); -} - -function isEmpty(obj) -{ - var key; - for (key in obj) - return (false); - return (true); -} - -function hasKey(obj, key) -{ - mod_assert.equal(typeof (key), 'string'); - return (Object.prototype.hasOwnProperty.call(obj, key)); -} - -function forEachKey(obj, callback) -{ - for (var key in obj) { - if (hasKey(obj, key)) { - callback(key, obj[key]); - } - } -} - -function pluck(obj, key) -{ - mod_assert.equal(typeof (key), 'string'); - return (pluckv(obj, key)); -} - -function pluckv(obj, key) -{ - if (obj === null || typeof (obj) !== 'object') - return (undefined); - - if (obj.hasOwnProperty(key)) - return (obj[key]); - - var i = key.indexOf('.'); - if (i == -1) - return (undefined); - - var key1 = key.substr(0, i); - if (!obj.hasOwnProperty(key1)) - return (undefined); - - return (pluckv(obj[key1], key.substr(i + 1))); -} - -/* - * Invoke callback(row) for each entry in the array that would be returned by - * flattenObject(data, depth). This is just like flattenObject(data, - * depth).forEach(callback), except that the intermediate array is never - * created. - */ -function flattenIter(data, depth, callback) -{ - doFlattenIter(data, depth, [], callback); -} - -function doFlattenIter(data, depth, accum, callback) -{ - var each; - var key; - - if (depth === 0) { - each = accum.slice(0); - each.push(data); - callback(each); - return; - } - - mod_assert.ok(data !== null); - mod_assert.equal(typeof (data), 'object'); - mod_assert.equal(typeof (depth), 'number'); - mod_assert.ok(depth >= 0); - - for (key in data) { - each = accum.slice(0); - each.push(key); - doFlattenIter(data[key], depth - 1, each, callback); - } -} - -function flattenObject(data, depth) -{ - if (depth === 0) - return ([ data ]); - - mod_assert.ok(data !== null); - mod_assert.equal(typeof (data), 'object'); - mod_assert.equal(typeof (depth), 'number'); - mod_assert.ok(depth >= 0); - - var rv = []; - var key; - - for (key in data) { - flattenObject(data[key], depth - 1).forEach(function (p) { - rv.push([ key ].concat(p)); - }); - } - - return (rv); -} - -function startsWith(str, prefix) -{ - return (str.substr(0, prefix.length) == prefix); -} - -function endsWith(str, suffix) -{ - return (str.substr( - str.length - suffix.length, suffix.length) == suffix); -} - -function iso8601(d) -{ - if (typeof (d) == 'number') - d = new Date(d); - mod_assert.ok(d.constructor === Date); - return (mod_extsprintf.sprintf('%4d-%02d-%02dT%02d:%02d:%02d.%03dZ', - d.getUTCFullYear(), d.getUTCMonth() + 1, d.getUTCDate(), - d.getUTCHours(), d.getUTCMinutes(), d.getUTCSeconds(), - d.getUTCMilliseconds())); -} - -var RFC1123_MONTHS = [ - 'Jan', 'Feb', 'Mar', 'Apr', 'May', 'Jun', - 'Jul', 'Aug', 'Sep', 'Oct', 'Nov', 'Dec']; -var RFC1123_DAYS = [ - 'Sun', 'Mon', 'Tue', 'Wed', 'Thu', 'Fri', 'Sat']; - -function rfc1123(date) { - return (mod_extsprintf.sprintf('%s, %02d %s %04d %02d:%02d:%02d GMT', - RFC1123_DAYS[date.getUTCDay()], date.getUTCDate(), - RFC1123_MONTHS[date.getUTCMonth()], date.getUTCFullYear(), - date.getUTCHours(), date.getUTCMinutes(), - date.getUTCSeconds())); -} - -/* - * Parses a date expressed as a string, as either a number of milliseconds since - * the epoch or any string format that Date accepts, giving preference to the - * former where these two sets overlap (e.g., small numbers). - */ -function parseDateTime(str) -{ - /* - * This is irritatingly implicit, but significantly more concise than - * alternatives. The "+str" will convert a string containing only a - * number directly to a Number, or NaN for other strings. Thus, if the - * conversion succeeds, we use it (this is the milliseconds-since-epoch - * case). Otherwise, we pass the string directly to the Date - * constructor to parse. - */ - var numeric = +str; - if (!isNaN(numeric)) { - return (new Date(numeric)); - } else { - return (new Date(str)); - } -} - -function validateJsonObjectJS(schema, input) -{ - var report = mod_jsonschema.validate(input, schema); - - if (report.errors.length === 0) - return (null); - - /* Currently, we only do anything useful with the first error. */ - var error = report.errors[0]; - - /* The failed property is given by a URI with an irrelevant prefix. */ - var propname = error['property']; - var reason = error['message'].toLowerCase(); - var i, j; - - /* - * There's at least one case where the property error message is - * confusing at best. We work around this here. - */ - if ((i = reason.indexOf('the property ')) != -1 && - (j = reason.indexOf(' is not defined in the schema and the ' + - 'schema does not allow additional properties')) != -1) { - i += 'the property '.length; - if (propname === '') - propname = reason.substr(i, j - i); - else - propname = propname + '.' + reason.substr(i, j - i); - - reason = 'unsupported property'; - } - - var rv = new mod_verror.VError('property "%s": %s', propname, reason); - rv.jsv_details = error; - return (rv); -} - -function randElt(arr) -{ - mod_assert.ok(Array.isArray(arr) && arr.length > 0, - 'randElt argument must be a non-empty array'); - - return (arr[Math.floor(Math.random() * arr.length)]); -} - -function assertHrtime(a) -{ - mod_assert.ok(a[0] >= 0 && a[1] >= 0, - 'negative numbers not allowed in hrtimes'); - mod_assert.ok(a[1] < 1e9, 'nanoseconds column overflow'); -} - -/* - * Compute the time elapsed between hrtime readings A and B, where A is later - * than B. hrtime readings come from Node's process.hrtime(). There is no - * defined way to represent negative deltas, so it's illegal to diff B from A - * where the time denoted by B is later than the time denoted by A. If this - * becomes valuable, we can define a representation and extend the - * implementation to support it. - */ -function hrtimeDiff(a, b) -{ - assertHrtime(a); - assertHrtime(b); - mod_assert.ok(a[0] > b[0] || (a[0] == b[0] && a[1] >= b[1]), - 'negative differences not allowed'); - - var rv = [ a[0] - b[0], 0 ]; - - if (a[1] >= b[1]) { - rv[1] = a[1] - b[1]; - } else { - rv[0]--; - rv[1] = 1e9 - (b[1] - a[1]); - } - - return (rv); -} - -/* - * Convert a hrtime reading from the array format returned by Node's - * process.hrtime() into a scalar number of nanoseconds. - */ -function hrtimeNanosec(a) -{ - assertHrtime(a); - - return (Math.floor(a[0] * 1e9 + a[1])); -} - -/* - * Convert a hrtime reading from the array format returned by Node's - * process.hrtime() into a scalar number of microseconds. - */ -function hrtimeMicrosec(a) -{ - assertHrtime(a); - - return (Math.floor(a[0] * 1e6 + a[1] / 1e3)); -} - -/* - * Convert a hrtime reading from the array format returned by Node's - * process.hrtime() into a scalar number of milliseconds. - */ -function hrtimeMillisec(a) -{ - assertHrtime(a); - - return (Math.floor(a[0] * 1e3 + a[1] / 1e6)); -} - -/* - * Add two hrtime readings A and B, overwriting A with the result of the - * addition. This function is useful for accumulating several hrtime intervals - * into a counter. Returns A. - */ -function hrtimeAccum(a, b) -{ - assertHrtime(a); - assertHrtime(b); - - /* - * Accumulate the nanosecond component. - */ - a[1] += b[1]; - if (a[1] >= 1e9) { - /* - * The nanosecond component overflowed, so carry to the seconds - * field. - */ - a[0]++; - a[1] -= 1e9; - } - - /* - * Accumulate the seconds component. - */ - a[0] += b[0]; - - return (a); -} - -/* - * Add two hrtime readings A and B, returning the result as a new hrtime array. - * Does not modify either input argument. - */ -function hrtimeAdd(a, b) -{ - assertHrtime(a); - - var rv = [ a[0], a[1] ]; - - return (hrtimeAccum(rv, b)); -} - - -/* - * Check an object for unexpected properties. Accepts the object to check, and - * an array of allowed property names (strings). Returns an array of key names - * that were found on the object, but did not appear in the list of allowed - * properties. If no properties were found, the returned array will be of - * zero length. - */ -function extraProperties(obj, allowed) -{ - mod_assert.ok(typeof (obj) === 'object' && obj !== null, - 'obj argument must be a non-null object'); - mod_assert.ok(Array.isArray(allowed), - 'allowed argument must be an array of strings'); - for (var i = 0; i < allowed.length; i++) { - mod_assert.ok(typeof (allowed[i]) === 'string', - 'allowed argument must be an array of strings'); - } - - return (Object.keys(obj).filter(function (key) { - return (allowed.indexOf(key) === -1); - })); -} - -/* - * Given three sets of properties "provided" (may be undefined), "overrides" - * (required), and "defaults" (may be undefined), construct an object containing - * the union of these sets with "overrides" overriding "provided", and - * "provided" overriding "defaults". None of the input objects are modified. - */ -function mergeObjects(provided, overrides, defaults) -{ - var rv, k; - - rv = {}; - if (defaults) { - for (k in defaults) - rv[k] = defaults[k]; - } - - if (provided) { - for (k in provided) - rv[k] = provided[k]; - } - - if (overrides) { - for (k in overrides) - rv[k] = overrides[k]; - } - - return (rv); -} - -},{"assert":151,"extsprintf":21,"json-schema":65,"util":298,"verror":135}],69:[function(require,module,exports){ -(function (global){ -/** - * @license - * lodash - * Copyright jQuery Foundation and other contributors - * Released under MIT license - * Based on Underscore.js 1.8.3 - * Copyright Jeremy Ashkenas, DocumentCloud and Investigative Reporters & Editors - */ -;(function() { - - /** Used as a safe reference for `undefined` in pre-ES5 environments. */ - var undefined; - - /** Used as the semantic version number. */ - var VERSION = '4.15.0'; - - /** Used as the size to enable large array optimizations. */ - var LARGE_ARRAY_SIZE = 200; - - /** Used as the `TypeError` message for "Functions" methods. */ - var FUNC_ERROR_TEXT = 'Expected a function'; - - /** Used to stand-in for `undefined` hash values. */ - var HASH_UNDEFINED = '__lodash_hash_undefined__'; - - /** Used as the internal argument placeholder. */ - var PLACEHOLDER = '__lodash_placeholder__'; - - /** Used to compose bitmasks for function metadata. */ - var BIND_FLAG = 1, - BIND_KEY_FLAG = 2, - CURRY_BOUND_FLAG = 4, - CURRY_FLAG = 8, - CURRY_RIGHT_FLAG = 16, - PARTIAL_FLAG = 32, - PARTIAL_RIGHT_FLAG = 64, - ARY_FLAG = 128, - REARG_FLAG = 256, - FLIP_FLAG = 512; - - /** Used to compose bitmasks for comparison styles. */ - var UNORDERED_COMPARE_FLAG = 1, - PARTIAL_COMPARE_FLAG = 2; - - /** Used as default options for `_.truncate`. */ - var DEFAULT_TRUNC_LENGTH = 30, - DEFAULT_TRUNC_OMISSION = '...'; - - /** Used to detect hot functions by number of calls within a span of milliseconds. */ - var HOT_COUNT = 150, - HOT_SPAN = 16; - - /** Used to indicate the type of lazy iteratees. */ - var LAZY_FILTER_FLAG = 1, - LAZY_MAP_FLAG = 2, - LAZY_WHILE_FLAG = 3; - - /** Used as references for various `Number` constants. */ - var INFINITY = 1 / 0, - MAX_SAFE_INTEGER = 9007199254740991, - MAX_INTEGER = 1.7976931348623157e+308, - NAN = 0 / 0; - - /** Used as references for the maximum length and index of an array. */ - var MAX_ARRAY_LENGTH = 4294967295, - MAX_ARRAY_INDEX = MAX_ARRAY_LENGTH - 1, - HALF_MAX_ARRAY_LENGTH = MAX_ARRAY_LENGTH >>> 1; - - /** Used to associate wrap methods with their bit flags. */ - var wrapFlags = [ - ['ary', ARY_FLAG], - ['bind', BIND_FLAG], - ['bindKey', BIND_KEY_FLAG], - ['curry', CURRY_FLAG], - ['curryRight', CURRY_RIGHT_FLAG], - ['flip', FLIP_FLAG], - ['partial', PARTIAL_FLAG], - ['partialRight', PARTIAL_RIGHT_FLAG], - ['rearg', REARG_FLAG] - ]; - - /** `Object#toString` result references. */ - var argsTag = '[object Arguments]', - arrayTag = '[object Array]', - boolTag = '[object Boolean]', - dateTag = '[object Date]', - errorTag = '[object Error]', - funcTag = '[object Function]', - genTag = '[object GeneratorFunction]', - mapTag = '[object Map]', - numberTag = '[object Number]', - objectTag = '[object Object]', - promiseTag = '[object Promise]', - regexpTag = '[object RegExp]', - setTag = '[object Set]', - stringTag = '[object String]', - symbolTag = '[object Symbol]', - weakMapTag = '[object WeakMap]', - weakSetTag = '[object WeakSet]'; - - var arrayBufferTag = '[object ArrayBuffer]', - dataViewTag = '[object DataView]', - float32Tag = '[object Float32Array]', - float64Tag = '[object Float64Array]', - int8Tag = '[object Int8Array]', - int16Tag = '[object Int16Array]', - int32Tag = '[object Int32Array]', - uint8Tag = '[object Uint8Array]', - uint8ClampedTag = '[object Uint8ClampedArray]', - uint16Tag = '[object Uint16Array]', - uint32Tag = '[object Uint32Array]'; - - /** Used to match empty string literals in compiled template source. */ - var reEmptyStringLeading = /\b__p \+= '';/g, - reEmptyStringMiddle = /\b(__p \+=) '' \+/g, - reEmptyStringTrailing = /(__e\(.*?\)|\b__t\)) \+\n'';/g; - - /** Used to match HTML entities and HTML characters. */ - var reEscapedHtml = /&(?:amp|lt|gt|quot|#39|#96);/g, - reUnescapedHtml = /[&<>"'`]/g, - reHasEscapedHtml = RegExp(reEscapedHtml.source), - reHasUnescapedHtml = RegExp(reUnescapedHtml.source); - - /** Used to match template delimiters. */ - var reEscape = /<%-([\s\S]+?)%>/g, - reEvaluate = /<%([\s\S]+?)%>/g, - reInterpolate = /<%=([\s\S]+?)%>/g; - - /** Used to match property names within property paths. */ - var reIsDeepProp = /\.|\[(?:[^[\]]*|(["'])(?:(?!\1)[^\\]|\\.)*?\1)\]/, - reIsPlainProp = /^\w*$/, - reLeadingDot = /^\./, - rePropName = /[^.[\]]+|\[(?:(-?\d+(?:\.\d+)?)|(["'])((?:(?!\2)[^\\]|\\.)*?)\2)\]|(?=(?:\.|\[\])(?:\.|\[\]|$))/g; - - /** - * Used to match `RegExp` - * [syntax characters](http://ecma-international.org/ecma-262/7.0/#sec-patterns). - */ - var reRegExpChar = /[\\^$.*+?()[\]{}|]/g, - reHasRegExpChar = RegExp(reRegExpChar.source); - - /** Used to match leading and trailing whitespace. */ - var reTrim = /^\s+|\s+$/g, - reTrimStart = /^\s+/, - reTrimEnd = /\s+$/; - - /** Used to match wrap detail comments. */ - var reWrapComment = /\{(?:\n\/\* \[wrapped with .+\] \*\/)?\n?/, - reWrapDetails = /\{\n\/\* \[wrapped with (.+)\] \*/, - reSplitDetails = /,? & /; - - /** Used to match words composed of alphanumeric characters. */ - var reAsciiWord = /[^\x00-\x2f\x3a-\x40\x5b-\x60\x7b-\x7f]+/g; - - /** Used to match backslashes in property paths. */ - var reEscapeChar = /\\(\\)?/g; - - /** - * Used to match - * [ES template delimiters](http://ecma-international.org/ecma-262/7.0/#sec-template-literal-lexical-components). - */ - var reEsTemplate = /\$\{([^\\}]*(?:\\.[^\\}]*)*)\}/g; - - /** Used to match `RegExp` flags from their coerced string values. */ - var reFlags = /\w*$/; - - /** Used to detect hexadecimal string values. */ - var reHasHexPrefix = /^0x/i; - - /** Used to detect bad signed hexadecimal string values. */ - var reIsBadHex = /^[-+]0x[0-9a-f]+$/i; - - /** Used to detect binary string values. */ - var reIsBinary = /^0b[01]+$/i; - - /** Used to detect host constructors (Safari). */ - var reIsHostCtor = /^\[object .+?Constructor\]$/; - - /** Used to detect octal string values. */ - var reIsOctal = /^0o[0-7]+$/i; - - /** Used to detect unsigned integer values. */ - var reIsUint = /^(?:0|[1-9]\d*)$/; - - /** Used to match Latin Unicode letters (excluding mathematical operators). */ - var reLatin = /[\xc0-\xd6\xd8-\xf6\xf8-\xff\u0100-\u017f]/g; - - /** Used to ensure capturing order of template delimiters. */ - var reNoMatch = /($^)/; - - /** Used to match unescaped characters in compiled string literals. */ - var reUnescapedString = /['\n\r\u2028\u2029\\]/g; - - /** Used to compose unicode character classes. */ - var rsAstralRange = '\\ud800-\\udfff', - rsComboMarksRange = '\\u0300-\\u036f\\ufe20-\\ufe23', - rsComboSymbolsRange = '\\u20d0-\\u20f0', - rsDingbatRange = '\\u2700-\\u27bf', - rsLowerRange = 'a-z\\xdf-\\xf6\\xf8-\\xff', - rsMathOpRange = '\\xac\\xb1\\xd7\\xf7', - rsNonCharRange = '\\x00-\\x2f\\x3a-\\x40\\x5b-\\x60\\x7b-\\xbf', - rsPunctuationRange = '\\u2000-\\u206f', - rsSpaceRange = ' \\t\\x0b\\f\\xa0\\ufeff\\n\\r\\u2028\\u2029\\u1680\\u180e\\u2000\\u2001\\u2002\\u2003\\u2004\\u2005\\u2006\\u2007\\u2008\\u2009\\u200a\\u202f\\u205f\\u3000', - rsUpperRange = 'A-Z\\xc0-\\xd6\\xd8-\\xde', - rsVarRange = '\\ufe0e\\ufe0f', - rsBreakRange = rsMathOpRange + rsNonCharRange + rsPunctuationRange + rsSpaceRange; - - /** Used to compose unicode capture groups. */ - var rsApos = "['\u2019]", - rsAstral = '[' + rsAstralRange + ']', - rsBreak = '[' + rsBreakRange + ']', - rsCombo = '[' + rsComboMarksRange + rsComboSymbolsRange + ']', - rsDigits = '\\d+', - rsDingbat = '[' + rsDingbatRange + ']', - rsLower = '[' + rsLowerRange + ']', - rsMisc = '[^' + rsAstralRange + rsBreakRange + rsDigits + rsDingbatRange + rsLowerRange + rsUpperRange + ']', - rsFitz = '\\ud83c[\\udffb-\\udfff]', - rsModifier = '(?:' + rsCombo + '|' + rsFitz + ')', - rsNonAstral = '[^' + rsAstralRange + ']', - rsRegional = '(?:\\ud83c[\\udde6-\\uddff]){2}', - rsSurrPair = '[\\ud800-\\udbff][\\udc00-\\udfff]', - rsUpper = '[' + rsUpperRange + ']', - rsZWJ = '\\u200d'; - - /** Used to compose unicode regexes. */ - var rsLowerMisc = '(?:' + rsLower + '|' + rsMisc + ')', - rsUpperMisc = '(?:' + rsUpper + '|' + rsMisc + ')', - rsOptLowerContr = '(?:' + rsApos + '(?:d|ll|m|re|s|t|ve))?', - rsOptUpperContr = '(?:' + rsApos + '(?:D|LL|M|RE|S|T|VE))?', - reOptMod = rsModifier + '?', - rsOptVar = '[' + rsVarRange + ']?', - rsOptJoin = '(?:' + rsZWJ + '(?:' + [rsNonAstral, rsRegional, rsSurrPair].join('|') + ')' + rsOptVar + reOptMod + ')*', - rsSeq = rsOptVar + reOptMod + rsOptJoin, - rsEmoji = '(?:' + [rsDingbat, rsRegional, rsSurrPair].join('|') + ')' + rsSeq, - rsSymbol = '(?:' + [rsNonAstral + rsCombo + '?', rsCombo, rsRegional, rsSurrPair, rsAstral].join('|') + ')'; - - /** Used to match apostrophes. */ - var reApos = RegExp(rsApos, 'g'); - - /** - * Used to match [combining diacritical marks](https://en.wikipedia.org/wiki/Combining_Diacritical_Marks) and - * [combining diacritical marks for symbols](https://en.wikipedia.org/wiki/Combining_Diacritical_Marks_for_Symbols). - */ - var reComboMark = RegExp(rsCombo, 'g'); - - /** Used to match [string symbols](https://mathiasbynens.be/notes/javascript-unicode). */ - var reUnicode = RegExp(rsFitz + '(?=' + rsFitz + ')|' + rsSymbol + rsSeq, 'g'); - - /** Used to match complex or compound words. */ - var reUnicodeWord = RegExp([ - rsUpper + '?' + rsLower + '+' + rsOptLowerContr + '(?=' + [rsBreak, rsUpper, '$'].join('|') + ')', - rsUpperMisc + '+' + rsOptUpperContr + '(?=' + [rsBreak, rsUpper + rsLowerMisc, '$'].join('|') + ')', - rsUpper + '?' + rsLowerMisc + '+' + rsOptLowerContr, - rsUpper + '+' + rsOptUpperContr, - rsDigits, - rsEmoji - ].join('|'), 'g'); - - /** Used to detect strings with [zero-width joiners or code points from the astral planes](http://eev.ee/blog/2015/09/12/dark-corners-of-unicode/). */ - var reHasUnicode = RegExp('[' + rsZWJ + rsAstralRange + rsComboMarksRange + rsComboSymbolsRange + rsVarRange + ']'); - - /** Used to detect strings that need a more robust regexp to match words. */ - var reHasUnicodeWord = /[a-z][A-Z]|[A-Z]{2,}[a-z]|[0-9][a-zA-Z]|[a-zA-Z][0-9]|[^a-zA-Z0-9 ]/; - - /** Used to assign default `context` object properties. */ - var contextProps = [ - 'Array', 'Buffer', 'DataView', 'Date', 'Error', 'Float32Array', 'Float64Array', - 'Function', 'Int8Array', 'Int16Array', 'Int32Array', 'Map', 'Math', 'Object', - 'Promise', 'RegExp', 'Set', 'String', 'Symbol', 'TypeError', 'Uint8Array', - 'Uint8ClampedArray', 'Uint16Array', 'Uint32Array', 'WeakMap', - '_', 'clearTimeout', 'isFinite', 'parseInt', 'setTimeout' - ]; - - /** Used to make template sourceURLs easier to identify. */ - var templateCounter = -1; - - /** Used to identify `toStringTag` values of typed arrays. */ - var typedArrayTags = {}; - typedArrayTags[float32Tag] = typedArrayTags[float64Tag] = - typedArrayTags[int8Tag] = typedArrayTags[int16Tag] = - typedArrayTags[int32Tag] = typedArrayTags[uint8Tag] = - typedArrayTags[uint8ClampedTag] = typedArrayTags[uint16Tag] = - typedArrayTags[uint32Tag] = true; - typedArrayTags[argsTag] = typedArrayTags[arrayTag] = - typedArrayTags[arrayBufferTag] = typedArrayTags[boolTag] = - typedArrayTags[dataViewTag] = typedArrayTags[dateTag] = - typedArrayTags[errorTag] = typedArrayTags[funcTag] = - typedArrayTags[mapTag] = typedArrayTags[numberTag] = - typedArrayTags[objectTag] = typedArrayTags[regexpTag] = - typedArrayTags[setTag] = typedArrayTags[stringTag] = - typedArrayTags[weakMapTag] = false; - - /** Used to identify `toStringTag` values supported by `_.clone`. */ - var cloneableTags = {}; - cloneableTags[argsTag] = cloneableTags[arrayTag] = - cloneableTags[arrayBufferTag] = cloneableTags[dataViewTag] = - cloneableTags[boolTag] = cloneableTags[dateTag] = - cloneableTags[float32Tag] = cloneableTags[float64Tag] = - cloneableTags[int8Tag] = cloneableTags[int16Tag] = - cloneableTags[int32Tag] = cloneableTags[mapTag] = - cloneableTags[numberTag] = cloneableTags[objectTag] = - cloneableTags[regexpTag] = cloneableTags[setTag] = - cloneableTags[stringTag] = cloneableTags[symbolTag] = - cloneableTags[uint8Tag] = cloneableTags[uint8ClampedTag] = - cloneableTags[uint16Tag] = cloneableTags[uint32Tag] = true; - cloneableTags[errorTag] = cloneableTags[funcTag] = - cloneableTags[weakMapTag] = false; - - /** Used to map Latin Unicode letters to basic Latin letters. */ - var deburredLetters = { - // Latin-1 Supplement block. - '\xc0': 'A', '\xc1': 'A', '\xc2': 'A', '\xc3': 'A', '\xc4': 'A', '\xc5': 'A', - '\xe0': 'a', '\xe1': 'a', '\xe2': 'a', '\xe3': 'a', '\xe4': 'a', '\xe5': 'a', - '\xc7': 'C', '\xe7': 'c', - '\xd0': 'D', '\xf0': 'd', - '\xc8': 'E', '\xc9': 'E', '\xca': 'E', '\xcb': 'E', - '\xe8': 'e', '\xe9': 'e', '\xea': 'e', '\xeb': 'e', - '\xcc': 'I', '\xcd': 'I', '\xce': 'I', '\xcf': 'I', - '\xec': 'i', '\xed': 'i', '\xee': 'i', '\xef': 'i', - '\xd1': 'N', '\xf1': 'n', - '\xd2': 'O', '\xd3': 'O', '\xd4': 'O', '\xd5': 'O', '\xd6': 'O', '\xd8': 'O', - '\xf2': 'o', '\xf3': 'o', '\xf4': 'o', '\xf5': 'o', '\xf6': 'o', '\xf8': 'o', - '\xd9': 'U', '\xda': 'U', '\xdb': 'U', '\xdc': 'U', - '\xf9': 'u', '\xfa': 'u', '\xfb': 'u', '\xfc': 'u', - '\xdd': 'Y', '\xfd': 'y', '\xff': 'y', - '\xc6': 'Ae', '\xe6': 'ae', - '\xde': 'Th', '\xfe': 'th', - '\xdf': 'ss', - // Latin Extended-A block. - '\u0100': 'A', '\u0102': 'A', '\u0104': 'A', - '\u0101': 'a', '\u0103': 'a', '\u0105': 'a', - '\u0106': 'C', '\u0108': 'C', '\u010a': 'C', '\u010c': 'C', - '\u0107': 'c', '\u0109': 'c', '\u010b': 'c', '\u010d': 'c', - '\u010e': 'D', '\u0110': 'D', '\u010f': 'd', '\u0111': 'd', - '\u0112': 'E', '\u0114': 'E', '\u0116': 'E', '\u0118': 'E', '\u011a': 'E', - '\u0113': 'e', '\u0115': 'e', '\u0117': 'e', '\u0119': 'e', '\u011b': 'e', - '\u011c': 'G', '\u011e': 'G', '\u0120': 'G', '\u0122': 'G', - '\u011d': 'g', '\u011f': 'g', '\u0121': 'g', '\u0123': 'g', - '\u0124': 'H', '\u0126': 'H', '\u0125': 'h', '\u0127': 'h', - '\u0128': 'I', '\u012a': 'I', '\u012c': 'I', '\u012e': 'I', '\u0130': 'I', - '\u0129': 'i', '\u012b': 'i', '\u012d': 'i', '\u012f': 'i', '\u0131': 'i', - '\u0134': 'J', '\u0135': 'j', - '\u0136': 'K', '\u0137': 'k', '\u0138': 'k', - '\u0139': 'L', '\u013b': 'L', '\u013d': 'L', '\u013f': 'L', '\u0141': 'L', - '\u013a': 'l', '\u013c': 'l', '\u013e': 'l', '\u0140': 'l', '\u0142': 'l', - '\u0143': 'N', '\u0145': 'N', '\u0147': 'N', '\u014a': 'N', - '\u0144': 'n', '\u0146': 'n', '\u0148': 'n', '\u014b': 'n', - '\u014c': 'O', '\u014e': 'O', '\u0150': 'O', - '\u014d': 'o', '\u014f': 'o', '\u0151': 'o', - '\u0154': 'R', '\u0156': 'R', '\u0158': 'R', - '\u0155': 'r', '\u0157': 'r', '\u0159': 'r', - '\u015a': 'S', '\u015c': 'S', '\u015e': 'S', '\u0160': 'S', - '\u015b': 's', '\u015d': 's', '\u015f': 's', '\u0161': 's', - '\u0162': 'T', '\u0164': 'T', '\u0166': 'T', - '\u0163': 't', '\u0165': 't', '\u0167': 't', - '\u0168': 'U', '\u016a': 'U', '\u016c': 'U', '\u016e': 'U', '\u0170': 'U', '\u0172': 'U', - '\u0169': 'u', '\u016b': 'u', '\u016d': 'u', '\u016f': 'u', '\u0171': 'u', '\u0173': 'u', - '\u0174': 'W', '\u0175': 'w', - '\u0176': 'Y', '\u0177': 'y', '\u0178': 'Y', - '\u0179': 'Z', '\u017b': 'Z', '\u017d': 'Z', - '\u017a': 'z', '\u017c': 'z', '\u017e': 'z', - '\u0132': 'IJ', '\u0133': 'ij', - '\u0152': 'Oe', '\u0153': 'oe', - '\u0149': "'n", '\u017f': 'ss' - }; - - /** Used to map characters to HTML entities. */ - var htmlEscapes = { - '&': '&', - '<': '<', - '>': '>', - '"': '"', - "'": ''', - '`': '`' - }; - - /** Used to map HTML entities to characters. */ - var htmlUnescapes = { - '&': '&', - '<': '<', - '>': '>', - '"': '"', - ''': "'", - '`': '`' - }; - - /** Used to escape characters for inclusion in compiled string literals. */ - var stringEscapes = { - '\\': '\\', - "'": "'", - '\n': 'n', - '\r': 'r', - '\u2028': 'u2028', - '\u2029': 'u2029' - }; - - /** Built-in method references without a dependency on `root`. */ - var freeParseFloat = parseFloat, - freeParseInt = parseInt; - - /** Detect free variable `global` from Node.js. */ - var freeGlobal = typeof global == 'object' && global && global.Object === Object && global; - - /** Detect free variable `self`. */ - var freeSelf = typeof self == 'object' && self && self.Object === Object && self; - - /** Used as a reference to the global object. */ - var root = freeGlobal || freeSelf || Function('return this')(); - - /** Detect free variable `exports`. */ - var freeExports = typeof exports == 'object' && exports && !exports.nodeType && exports; - - /** Detect free variable `module`. */ - var freeModule = freeExports && typeof module == 'object' && module && !module.nodeType && module; - - /** Detect the popular CommonJS extension `module.exports`. */ - var moduleExports = freeModule && freeModule.exports === freeExports; - - /** Detect free variable `process` from Node.js. */ - var freeProcess = moduleExports && freeGlobal.process; - - /** Used to access faster Node.js helpers. */ - var nodeUtil = (function() { - try { - return freeProcess && freeProcess.binding('util'); - } catch (e) {} - }()); - - /* Node.js helper references. */ - var nodeIsArrayBuffer = nodeUtil && nodeUtil.isArrayBuffer, - nodeIsDate = nodeUtil && nodeUtil.isDate, - nodeIsMap = nodeUtil && nodeUtil.isMap, - nodeIsRegExp = nodeUtil && nodeUtil.isRegExp, - nodeIsSet = nodeUtil && nodeUtil.isSet, - nodeIsTypedArray = nodeUtil && nodeUtil.isTypedArray; - - /*--------------------------------------------------------------------------*/ - - /** - * Adds the key-value `pair` to `map`. - * - * @private - * @param {Object} map The map to modify. - * @param {Array} pair The key-value pair to add. - * @returns {Object} Returns `map`. - */ - function addMapEntry(map, pair) { - // Don't return `map.set` because it's not chainable in IE 11. - map.set(pair[0], pair[1]); - return map; - } - - /** - * Adds `value` to `set`. - * - * @private - * @param {Object} set The set to modify. - * @param {*} value The value to add. - * @returns {Object} Returns `set`. - */ - function addSetEntry(set, value) { - // Don't return `set.add` because it's not chainable in IE 11. - set.add(value); - return set; - } - - /** - * A faster alternative to `Function#apply`, this function invokes `func` - * with the `this` binding of `thisArg` and the arguments of `args`. - * - * @private - * @param {Function} func The function to invoke. - * @param {*} thisArg The `this` binding of `func`. - * @param {Array} args The arguments to invoke `func` with. - * @returns {*} Returns the result of `func`. - */ - function apply(func, thisArg, args) { - switch (args.length) { - case 0: return func.call(thisArg); - case 1: return func.call(thisArg, args[0]); - case 2: return func.call(thisArg, args[0], args[1]); - case 3: return func.call(thisArg, args[0], args[1], args[2]); - } - return func.apply(thisArg, args); - } - - /** - * A specialized version of `baseAggregator` for arrays. - * - * @private - * @param {Array} [array] The array to iterate over. - * @param {Function} setter The function to set `accumulator` values. - * @param {Function} iteratee The iteratee to transform keys. - * @param {Object} accumulator The initial aggregated object. - * @returns {Function} Returns `accumulator`. - */ - function arrayAggregator(array, setter, iteratee, accumulator) { - var index = -1, - length = array ? array.length : 0; - - while (++index < length) { - var value = array[index]; - setter(accumulator, value, iteratee(value), array); - } - return accumulator; - } - - /** - * A specialized version of `_.forEach` for arrays without support for - * iteratee shorthands. - * - * @private - * @param {Array} [array] The array to iterate over. - * @param {Function} iteratee The function invoked per iteration. - * @returns {Array} Returns `array`. - */ - function arrayEach(array, iteratee) { - var index = -1, - length = array ? array.length : 0; - - while (++index < length) { - if (iteratee(array[index], index, array) === false) { - break; - } - } - return array; - } - - /** - * A specialized version of `_.forEachRight` for arrays without support for - * iteratee shorthands. - * - * @private - * @param {Array} [array] The array to iterate over. - * @param {Function} iteratee The function invoked per iteration. - * @returns {Array} Returns `array`. - */ - function arrayEachRight(array, iteratee) { - var length = array ? array.length : 0; - - while (length--) { - if (iteratee(array[length], length, array) === false) { - break; - } - } - return array; - } - - /** - * A specialized version of `_.every` for arrays without support for - * iteratee shorthands. - * - * @private - * @param {Array} [array] The array to iterate over. - * @param {Function} predicate The function invoked per iteration. - * @returns {boolean} Returns `true` if all elements pass the predicate check, - * else `false`. - */ - function arrayEvery(array, predicate) { - var index = -1, - length = array ? array.length : 0; - - while (++index < length) { - if (!predicate(array[index], index, array)) { - return false; - } - } - return true; - } - - /** - * A specialized version of `_.filter` for arrays without support for - * iteratee shorthands. - * - * @private - * @param {Array} [array] The array to iterate over. - * @param {Function} predicate The function invoked per iteration. - * @returns {Array} Returns the new filtered array. - */ - function arrayFilter(array, predicate) { - var index = -1, - length = array ? array.length : 0, - resIndex = 0, - result = []; - - while (++index < length) { - var value = array[index]; - if (predicate(value, index, array)) { - result[resIndex++] = value; - } - } - return result; - } - - /** - * A specialized version of `_.includes` for arrays without support for - * specifying an index to search from. - * - * @private - * @param {Array} [array] The array to inspect. - * @param {*} target The value to search for. - * @returns {boolean} Returns `true` if `target` is found, else `false`. - */ - function arrayIncludes(array, value) { - var length = array ? array.length : 0; - return !!length && baseIndexOf(array, value, 0) > -1; - } - - /** - * This function is like `arrayIncludes` except that it accepts a comparator. - * - * @private - * @param {Array} [array] The array to inspect. - * @param {*} target The value to search for. - * @param {Function} comparator The comparator invoked per element. - * @returns {boolean} Returns `true` if `target` is found, else `false`. - */ - function arrayIncludesWith(array, value, comparator) { - var index = -1, - length = array ? array.length : 0; - - while (++index < length) { - if (comparator(value, array[index])) { - return true; - } - } - return false; - } - - /** - * A specialized version of `_.map` for arrays without support for iteratee - * shorthands. - * - * @private - * @param {Array} [array] The array to iterate over. - * @param {Function} iteratee The function invoked per iteration. - * @returns {Array} Returns the new mapped array. - */ - function arrayMap(array, iteratee) { - var index = -1, - length = array ? array.length : 0, - result = Array(length); - - while (++index < length) { - result[index] = iteratee(array[index], index, array); - } - return result; - } - - /** - * Appends the elements of `values` to `array`. - * - * @private - * @param {Array} array The array to modify. - * @param {Array} values The values to append. - * @returns {Array} Returns `array`. - */ - function arrayPush(array, values) { - var index = -1, - length = values.length, - offset = array.length; - - while (++index < length) { - array[offset + index] = values[index]; - } - return array; - } - - /** - * A specialized version of `_.reduce` for arrays without support for - * iteratee shorthands. - * - * @private - * @param {Array} [array] The array to iterate over. - * @param {Function} iteratee The function invoked per iteration. - * @param {*} [accumulator] The initial value. - * @param {boolean} [initAccum] Specify using the first element of `array` as - * the initial value. - * @returns {*} Returns the accumulated value. - */ - function arrayReduce(array, iteratee, accumulator, initAccum) { - var index = -1, - length = array ? array.length : 0; - - if (initAccum && length) { - accumulator = array[++index]; - } - while (++index < length) { - accumulator = iteratee(accumulator, array[index], index, array); - } - return accumulator; - } - - /** - * A specialized version of `_.reduceRight` for arrays without support for - * iteratee shorthands. - * - * @private - * @param {Array} [array] The array to iterate over. - * @param {Function} iteratee The function invoked per iteration. - * @param {*} [accumulator] The initial value. - * @param {boolean} [initAccum] Specify using the last element of `array` as - * the initial value. - * @returns {*} Returns the accumulated value. - */ - function arrayReduceRight(array, iteratee, accumulator, initAccum) { - var length = array ? array.length : 0; - if (initAccum && length) { - accumulator = array[--length]; - } - while (length--) { - accumulator = iteratee(accumulator, array[length], length, array); - } - return accumulator; - } - - /** - * A specialized version of `_.some` for arrays without support for iteratee - * shorthands. - * - * @private - * @param {Array} [array] The array to iterate over. - * @param {Function} predicate The function invoked per iteration. - * @returns {boolean} Returns `true` if any element passes the predicate check, - * else `false`. - */ - function arraySome(array, predicate) { - var index = -1, - length = array ? array.length : 0; - - while (++index < length) { - if (predicate(array[index], index, array)) { - return true; - } - } - return false; - } - - /** - * Gets the size of an ASCII `string`. - * - * @private - * @param {string} string The string inspect. - * @returns {number} Returns the string size. - */ - var asciiSize = baseProperty('length'); - - /** - * Converts an ASCII `string` to an array. - * - * @private - * @param {string} string The string to convert. - * @returns {Array} Returns the converted array. - */ - function asciiToArray(string) { - return string.split(''); - } - - /** - * Splits an ASCII `string` into an array of its words. - * - * @private - * @param {string} The string to inspect. - * @returns {Array} Returns the words of `string`. - */ - function asciiWords(string) { - return string.match(reAsciiWord) || []; - } - - /** - * The base implementation of methods like `_.findKey` and `_.findLastKey`, - * without support for iteratee shorthands, which iterates over `collection` - * using `eachFunc`. - * - * @private - * @param {Array|Object} collection The collection to inspect. - * @param {Function} predicate The function invoked per iteration. - * @param {Function} eachFunc The function to iterate over `collection`. - * @returns {*} Returns the found element or its key, else `undefined`. - */ - function baseFindKey(collection, predicate, eachFunc) { - var result; - eachFunc(collection, function(value, key, collection) { - if (predicate(value, key, collection)) { - result = key; - return false; - } - }); - return result; - } - - /** - * The base implementation of `_.findIndex` and `_.findLastIndex` without - * support for iteratee shorthands. - * - * @private - * @param {Array} array The array to inspect. - * @param {Function} predicate The function invoked per iteration. - * @param {number} fromIndex The index to search from. - * @param {boolean} [fromRight] Specify iterating from right to left. - * @returns {number} Returns the index of the matched value, else `-1`. - */ - function baseFindIndex(array, predicate, fromIndex, fromRight) { - var length = array.length, - index = fromIndex + (fromRight ? 1 : -1); - - while ((fromRight ? index-- : ++index < length)) { - if (predicate(array[index], index, array)) { - return index; - } - } - return -1; - } - - /** - * The base implementation of `_.indexOf` without `fromIndex` bounds checks. - * - * @private - * @param {Array} array The array to inspect. - * @param {*} value The value to search for. - * @param {number} fromIndex The index to search from. - * @returns {number} Returns the index of the matched value, else `-1`. - */ - function baseIndexOf(array, value, fromIndex) { - if (value !== value) { - return baseFindIndex(array, baseIsNaN, fromIndex); - } - var index = fromIndex - 1, - length = array.length; - - while (++index < length) { - if (array[index] === value) { - return index; - } - } - return -1; - } - - /** - * This function is like `baseIndexOf` except that it accepts a comparator. - * - * @private - * @param {Array} array The array to inspect. - * @param {*} value The value to search for. - * @param {number} fromIndex The index to search from. - * @param {Function} comparator The comparator invoked per element. - * @returns {number} Returns the index of the matched value, else `-1`. - */ - function baseIndexOfWith(array, value, fromIndex, comparator) { - var index = fromIndex - 1, - length = array.length; - - while (++index < length) { - if (comparator(array[index], value)) { - return index; - } - } - return -1; - } - - /** - * The base implementation of `_.isNaN` without support for number objects. - * - * @private - * @param {*} value The value to check. - * @returns {boolean} Returns `true` if `value` is `NaN`, else `false`. - */ - function baseIsNaN(value) { - return value !== value; - } - - /** - * The base implementation of `_.mean` and `_.meanBy` without support for - * iteratee shorthands. - * - * @private - * @param {Array} array The array to iterate over. - * @param {Function} iteratee The function invoked per iteration. - * @returns {number} Returns the mean. - */ - function baseMean(array, iteratee) { - var length = array ? array.length : 0; - return length ? (baseSum(array, iteratee) / length) : NAN; - } - - /** - * The base implementation of `_.property` without support for deep paths. - * - * @private - * @param {string} key The key of the property to get. - * @returns {Function} Returns the new accessor function. - */ - function baseProperty(key) { - return function(object) { - return object == null ? undefined : object[key]; - }; - } - - /** - * The base implementation of `_.propertyOf` without support for deep paths. - * - * @private - * @param {Object} object The object to query. - * @returns {Function} Returns the new accessor function. - */ - function basePropertyOf(object) { - return function(key) { - return object == null ? undefined : object[key]; - }; - } - - /** - * The base implementation of `_.reduce` and `_.reduceRight`, without support - * for iteratee shorthands, which iterates over `collection` using `eachFunc`. - * - * @private - * @param {Array|Object} collection The collection to iterate over. - * @param {Function} iteratee The function invoked per iteration. - * @param {*} accumulator The initial value. - * @param {boolean} initAccum Specify using the first or last element of - * `collection` as the initial value. - * @param {Function} eachFunc The function to iterate over `collection`. - * @returns {*} Returns the accumulated value. - */ - function baseReduce(collection, iteratee, accumulator, initAccum, eachFunc) { - eachFunc(collection, function(value, index, collection) { - accumulator = initAccum - ? (initAccum = false, value) - : iteratee(accumulator, value, index, collection); - }); - return accumulator; - } - - /** - * The base implementation of `_.sortBy` which uses `comparer` to define the - * sort order of `array` and replaces criteria objects with their corresponding - * values. - * - * @private - * @param {Array} array The array to sort. - * @param {Function} comparer The function to define sort order. - * @returns {Array} Returns `array`. - */ - function baseSortBy(array, comparer) { - var length = array.length; - - array.sort(comparer); - while (length--) { - array[length] = array[length].value; - } - return array; - } - - /** - * The base implementation of `_.sum` and `_.sumBy` without support for - * iteratee shorthands. - * - * @private - * @param {Array} array The array to iterate over. - * @param {Function} iteratee The function invoked per iteration. - * @returns {number} Returns the sum. - */ - function baseSum(array, iteratee) { - var result, - index = -1, - length = array.length; - - while (++index < length) { - var current = iteratee(array[index]); - if (current !== undefined) { - result = result === undefined ? current : (result + current); - } - } - return result; - } - - /** - * The base implementation of `_.times` without support for iteratee shorthands - * or max array length checks. - * - * @private - * @param {number} n The number of times to invoke `iteratee`. - * @param {Function} iteratee The function invoked per iteration. - * @returns {Array} Returns the array of results. - */ - function baseTimes(n, iteratee) { - var index = -1, - result = Array(n); - - while (++index < n) { - result[index] = iteratee(index); - } - return result; - } - - /** - * The base implementation of `_.toPairs` and `_.toPairsIn` which creates an array - * of key-value pairs for `object` corresponding to the property names of `props`. - * - * @private - * @param {Object} object The object to query. - * @param {Array} props The property names to get values for. - * @returns {Object} Returns the key-value pairs. - */ - function baseToPairs(object, props) { - return arrayMap(props, function(key) { - return [key, object[key]]; - }); - } - - /** - * The base implementation of `_.unary` without support for storing metadata. - * - * @private - * @param {Function} func The function to cap arguments for. - * @returns {Function} Returns the new capped function. - */ - function baseUnary(func) { - return function(value) { - return func(value); - }; - } - - /** - * The base implementation of `_.values` and `_.valuesIn` which creates an - * array of `object` property values corresponding to the property names - * of `props`. - * - * @private - * @param {Object} object The object to query. - * @param {Array} props The property names to get values for. - * @returns {Object} Returns the array of property values. - */ - function baseValues(object, props) { - return arrayMap(props, function(key) { - return object[key]; - }); - } - - /** - * Checks if a cache value for `key` exists. - * - * @private - * @param {Object} cache The cache to query. - * @param {string} key The key of the entry to check. - * @returns {boolean} Returns `true` if an entry for `key` exists, else `false`. - */ - function cacheHas(cache, key) { - return cache.has(key); - } - - /** - * Used by `_.trim` and `_.trimStart` to get the index of the first string symbol - * that is not found in the character symbols. - * - * @private - * @param {Array} strSymbols The string symbols to inspect. - * @param {Array} chrSymbols The character symbols to find. - * @returns {number} Returns the index of the first unmatched string symbol. - */ - function charsStartIndex(strSymbols, chrSymbols) { - var index = -1, - length = strSymbols.length; - - while (++index < length && baseIndexOf(chrSymbols, strSymbols[index], 0) > -1) {} - return index; - } - - /** - * Used by `_.trim` and `_.trimEnd` to get the index of the last string symbol - * that is not found in the character symbols. - * - * @private - * @param {Array} strSymbols The string symbols to inspect. - * @param {Array} chrSymbols The character symbols to find. - * @returns {number} Returns the index of the last unmatched string symbol. - */ - function charsEndIndex(strSymbols, chrSymbols) { - var index = strSymbols.length; - - while (index-- && baseIndexOf(chrSymbols, strSymbols[index], 0) > -1) {} - return index; - } - - /** - * Gets the number of `placeholder` occurrences in `array`. - * - * @private - * @param {Array} array The array to inspect. - * @param {*} placeholder The placeholder to search for. - * @returns {number} Returns the placeholder count. - */ - function countHolders(array, placeholder) { - var length = array.length, - result = 0; - - while (length--) { - if (array[length] === placeholder) { - result++; - } - } - return result; - } - - /** - * Used by `_.deburr` to convert Latin-1 Supplement and Latin Extended-A - * letters to basic Latin letters. - * - * @private - * @param {string} letter The matched letter to deburr. - * @returns {string} Returns the deburred letter. - */ - var deburrLetter = basePropertyOf(deburredLetters); - - /** - * Used by `_.escape` to convert characters to HTML entities. - * - * @private - * @param {string} chr The matched character to escape. - * @returns {string} Returns the escaped character. - */ - var escapeHtmlChar = basePropertyOf(htmlEscapes); - - /** - * Used by `_.template` to escape characters for inclusion in compiled string literals. - * - * @private - * @param {string} chr The matched character to escape. - * @returns {string} Returns the escaped character. - */ - function escapeStringChar(chr) { - return '\\' + stringEscapes[chr]; - } - - /** - * Gets the value at `key` of `object`. - * - * @private - * @param {Object} [object] The object to query. - * @param {string} key The key of the property to get. - * @returns {*} Returns the property value. - */ - function getValue(object, key) { - return object == null ? undefined : object[key]; - } - - /** - * Checks if `string` contains Unicode symbols. - * - * @private - * @param {string} string The string to inspect. - * @returns {boolean} Returns `true` if a symbol is found, else `false`. - */ - function hasUnicode(string) { - return reHasUnicode.test(string); - } - - /** - * Checks if `string` contains a word composed of Unicode symbols. - * - * @private - * @param {string} string The string to inspect. - * @returns {boolean} Returns `true` if a word is found, else `false`. - */ - function hasUnicodeWord(string) { - return reHasUnicodeWord.test(string); - } - - /** - * Checks if `value` is a host object in IE < 9. - * - * @private - * @param {*} value The value to check. - * @returns {boolean} Returns `true` if `value` is a host object, else `false`. - */ - function isHostObject(value) { - // Many host objects are `Object` objects that can coerce to strings - // despite having improperly defined `toString` methods. - var result = false; - if (value != null && typeof value.toString != 'function') { - try { - result = !!(value + ''); - } catch (e) {} - } - return result; - } - - /** - * Converts `iterator` to an array. - * - * @private - * @param {Object} iterator The iterator to convert. - * @returns {Array} Returns the converted array. - */ - function iteratorToArray(iterator) { - var data, - result = []; - - while (!(data = iterator.next()).done) { - result.push(data.value); - } - return result; - } - - /** - * Converts `map` to its key-value pairs. - * - * @private - * @param {Object} map The map to convert. - * @returns {Array} Returns the key-value pairs. - */ - function mapToArray(map) { - var index = -1, - result = Array(map.size); - - map.forEach(function(value, key) { - result[++index] = [key, value]; - }); - return result; - } - - /** - * Creates a unary function that invokes `func` with its argument transformed. - * - * @private - * @param {Function} func The function to wrap. - * @param {Function} transform The argument transform. - * @returns {Function} Returns the new function. - */ - function overArg(func, transform) { - return function(arg) { - return func(transform(arg)); - }; - } - - /** - * Replaces all `placeholder` elements in `array` with an internal placeholder - * and returns an array of their indexes. - * - * @private - * @param {Array} array The array to modify. - * @param {*} placeholder The placeholder to replace. - * @returns {Array} Returns the new array of placeholder indexes. - */ - function replaceHolders(array, placeholder) { - var index = -1, - length = array.length, - resIndex = 0, - result = []; - - while (++index < length) { - var value = array[index]; - if (value === placeholder || value === PLACEHOLDER) { - array[index] = PLACEHOLDER; - result[resIndex++] = index; - } - } - return result; - } - - /** - * Converts `set` to an array of its values. - * - * @private - * @param {Object} set The set to convert. - * @returns {Array} Returns the values. - */ - function setToArray(set) { - var index = -1, - result = Array(set.size); - - set.forEach(function(value) { - result[++index] = value; - }); - return result; - } - - /** - * Converts `set` to its value-value pairs. - * - * @private - * @param {Object} set The set to convert. - * @returns {Array} Returns the value-value pairs. - */ - function setToPairs(set) { - var index = -1, - result = Array(set.size); - - set.forEach(function(value) { - result[++index] = [value, value]; - }); - return result; - } - - /** - * Gets the number of symbols in `string`. - * - * @private - * @param {string} string The string to inspect. - * @returns {number} Returns the string size. - */ - function stringSize(string) { - return hasUnicode(string) - ? unicodeSize(string) - : asciiSize(string); - } - - /** - * Converts `string` to an array. - * - * @private - * @param {string} string The string to convert. - * @returns {Array} Returns the converted array. - */ - function stringToArray(string) { - return hasUnicode(string) - ? unicodeToArray(string) - : asciiToArray(string); - } - - /** - * Used by `_.unescape` to convert HTML entities to characters. - * - * @private - * @param {string} chr The matched character to unescape. - * @returns {string} Returns the unescaped character. - */ - var unescapeHtmlChar = basePropertyOf(htmlUnescapes); - - /** - * Gets the size of a Unicode `string`. - * - * @private - * @param {string} string The string inspect. - * @returns {number} Returns the string size. - */ - function unicodeSize(string) { - var result = reUnicode.lastIndex = 0; - while (reUnicode.test(string)) { - result++; - } - return result; - } - - /** - * Converts a Unicode `string` to an array. - * - * @private - * @param {string} string The string to convert. - * @returns {Array} Returns the converted array. - */ - function unicodeToArray(string) { - return string.match(reUnicode) || []; - } - - /** - * Splits a Unicode `string` into an array of its words. - * - * @private - * @param {string} The string to inspect. - * @returns {Array} Returns the words of `string`. - */ - function unicodeWords(string) { - return string.match(reUnicodeWord) || []; - } - - /*--------------------------------------------------------------------------*/ - - /** - * Create a new pristine `lodash` function using the `context` object. - * - * @static - * @memberOf _ - * @since 1.1.0 - * @category Util - * @param {Object} [context=root] The context object. - * @returns {Function} Returns a new `lodash` function. - * @example - * - * _.mixin({ 'foo': _.constant('foo') }); - * - * var lodash = _.runInContext(); - * lodash.mixin({ 'bar': lodash.constant('bar') }); - * - * _.isFunction(_.foo); - * // => true - * _.isFunction(_.bar); - * // => false - * - * lodash.isFunction(lodash.foo); - * // => false - * lodash.isFunction(lodash.bar); - * // => true - * - * // Use `context` to stub `Date#getTime` use in `_.now`. - * var stubbed = _.runInContext({ - * 'Date': function() { - * return { 'getTime': stubGetTime }; - * } - * }); - * - * // Create a suped-up `defer` in Node.js. - * var defer = _.runInContext({ 'setTimeout': setImmediate }).defer; - */ - function runInContext(context) { - context = context ? _.defaults(root.Object(), context, _.pick(root, contextProps)) : root; - - /** Built-in constructor references. */ - var Array = context.Array, - Date = context.Date, - Error = context.Error, - Function = context.Function, - Math = context.Math, - Object = context.Object, - RegExp = context.RegExp, - String = context.String, - TypeError = context.TypeError; - - /** Used for built-in method references. */ - var arrayProto = Array.prototype, - funcProto = Function.prototype, - objectProto = Object.prototype; - - /** Used to detect overreaching core-js shims. */ - var coreJsData = context['__core-js_shared__']; - - /** Used to detect methods masquerading as native. */ - var maskSrcKey = (function() { - var uid = /[^.]+$/.exec(coreJsData && coreJsData.keys && coreJsData.keys.IE_PROTO || ''); - return uid ? ('Symbol(src)_1.' + uid) : ''; - }()); - - /** Used to resolve the decompiled source of functions. */ - var funcToString = funcProto.toString; - - /** Used to check objects for own properties. */ - var hasOwnProperty = objectProto.hasOwnProperty; - - /** Used to generate unique IDs. */ - var idCounter = 0; - - /** Used to infer the `Object` constructor. */ - var objectCtorString = funcToString.call(Object); - - /** - * Used to resolve the - * [`toStringTag`](http://ecma-international.org/ecma-262/7.0/#sec-object.prototype.tostring) - * of values. - */ - var objectToString = objectProto.toString; - - /** Used to restore the original `_` reference in `_.noConflict`. */ - var oldDash = root._; - - /** Used to detect if a method is native. */ - var reIsNative = RegExp('^' + - funcToString.call(hasOwnProperty).replace(reRegExpChar, '\\$&') - .replace(/hasOwnProperty|(function).*?(?=\\\()| for .+?(?=\\\])/g, '$1.*?') + '$' - ); - - /** Built-in value references. */ - var Buffer = moduleExports ? context.Buffer : undefined, - Symbol = context.Symbol, - Uint8Array = context.Uint8Array, - getPrototype = overArg(Object.getPrototypeOf, Object), - iteratorSymbol = Symbol ? Symbol.iterator : undefined, - objectCreate = Object.create, - propertyIsEnumerable = objectProto.propertyIsEnumerable, - splice = arrayProto.splice, - spreadableSymbol = Symbol ? Symbol.isConcatSpreadable : undefined; - - /** Mocked built-ins. */ - var ctxClearTimeout = context.clearTimeout !== root.clearTimeout && context.clearTimeout, - ctxNow = Date && Date.now !== root.Date.now && Date.now, - ctxSetTimeout = context.setTimeout !== root.setTimeout && context.setTimeout; - - /* Built-in method references for those with the same name as other `lodash` methods. */ - var nativeCeil = Math.ceil, - nativeFloor = Math.floor, - nativeGetSymbols = Object.getOwnPropertySymbols, - nativeIsBuffer = Buffer ? Buffer.isBuffer : undefined, - nativeIsFinite = context.isFinite, - nativeJoin = arrayProto.join, - nativeKeys = overArg(Object.keys, Object), - nativeMax = Math.max, - nativeMin = Math.min, - nativeParseInt = context.parseInt, - nativeRandom = Math.random, - nativeReverse = arrayProto.reverse; - - /* Built-in method references that are verified to be native. */ - var DataView = getNative(context, 'DataView'), - Map = getNative(context, 'Map'), - Promise = getNative(context, 'Promise'), - Set = getNative(context, 'Set'), - WeakMap = getNative(context, 'WeakMap'), - nativeCreate = getNative(Object, 'create'); - - /* Used to set `toString` methods. */ - var defineProperty = (function() { - var func = getNative(Object, 'defineProperty'), - name = getNative.name; - - return (name && name.length > 2) ? func : undefined; - }()); - - /** Used to store function metadata. */ - var metaMap = WeakMap && new WeakMap; - - /** Detect if properties shadowing those on `Object.prototype` are non-enumerable. */ - var nonEnumShadows = !propertyIsEnumerable.call({ 'valueOf': 1 }, 'valueOf'); - - /** Used to lookup unminified function names. */ - var realNames = {}; - - /** Used to detect maps, sets, and weakmaps. */ - var dataViewCtorString = toSource(DataView), - mapCtorString = toSource(Map), - promiseCtorString = toSource(Promise), - setCtorString = toSource(Set), - weakMapCtorString = toSource(WeakMap); - - /** Used to convert symbols to primitives and strings. */ - var symbolProto = Symbol ? Symbol.prototype : undefined, - symbolValueOf = symbolProto ? symbolProto.valueOf : undefined, - symbolToString = symbolProto ? symbolProto.toString : undefined; - - /*------------------------------------------------------------------------*/ - - /** - * Creates a `lodash` object which wraps `value` to enable implicit method - * chain sequences. Methods that operate on and return arrays, collections, - * and functions can be chained together. Methods that retrieve a single value - * or may return a primitive value will automatically end the chain sequence - * and return the unwrapped value. Otherwise, the value must be unwrapped - * with `_#value`. - * - * Explicit chain sequences, which must be unwrapped with `_#value`, may be - * enabled using `_.chain`. - * - * The execution of chained methods is lazy, that is, it's deferred until - * `_#value` is implicitly or explicitly called. - * - * Lazy evaluation allows several methods to support shortcut fusion. - * Shortcut fusion is an optimization to merge iteratee calls; this avoids - * the creation of intermediate arrays and can greatly reduce the number of - * iteratee executions. Sections of a chain sequence qualify for shortcut - * fusion if the section is applied to an array of at least `200` elements - * and any iteratees accept only one argument. The heuristic for whether a - * section qualifies for shortcut fusion is subject to change. - * - * Chaining is supported in custom builds as long as the `_#value` method is - * directly or indirectly included in the build. - * - * In addition to lodash methods, wrappers have `Array` and `String` methods. - * - * The wrapper `Array` methods are: - * `concat`, `join`, `pop`, `push`, `shift`, `sort`, `splice`, and `unshift` - * - * The wrapper `String` methods are: - * `replace` and `split` - * - * The wrapper methods that support shortcut fusion are: - * `at`, `compact`, `drop`, `dropRight`, `dropWhile`, `filter`, `find`, - * `findLast`, `head`, `initial`, `last`, `map`, `reject`, `reverse`, `slice`, - * `tail`, `take`, `takeRight`, `takeRightWhile`, `takeWhile`, and `toArray` - * - * The chainable wrapper methods are: - * `after`, `ary`, `assign`, `assignIn`, `assignInWith`, `assignWith`, `at`, - * `before`, `bind`, `bindAll`, `bindKey`, `castArray`, `chain`, `chunk`, - * `commit`, `compact`, `concat`, `conforms`, `constant`, `countBy`, `create`, - * `curry`, `debounce`, `defaults`, `defaultsDeep`, `defer`, `delay`, - * `difference`, `differenceBy`, `differenceWith`, `drop`, `dropRight`, - * `dropRightWhile`, `dropWhile`, `extend`, `extendWith`, `fill`, `filter`, - * `flatMap`, `flatMapDeep`, `flatMapDepth`, `flatten`, `flattenDeep`, - * `flattenDepth`, `flip`, `flow`, `flowRight`, `fromPairs`, `functions`, - * `functionsIn`, `groupBy`, `initial`, `intersection`, `intersectionBy`, - * `intersectionWith`, `invert`, `invertBy`, `invokeMap`, `iteratee`, `keyBy`, - * `keys`, `keysIn`, `map`, `mapKeys`, `mapValues`, `matches`, `matchesProperty`, - * `memoize`, `merge`, `mergeWith`, `method`, `methodOf`, `mixin`, `negate`, - * `nthArg`, `omit`, `omitBy`, `once`, `orderBy`, `over`, `overArgs`, - * `overEvery`, `overSome`, `partial`, `partialRight`, `partition`, `pick`, - * `pickBy`, `plant`, `property`, `propertyOf`, `pull`, `pullAll`, `pullAllBy`, - * `pullAllWith`, `pullAt`, `push`, `range`, `rangeRight`, `rearg`, `reject`, - * `remove`, `rest`, `reverse`, `sampleSize`, `set`, `setWith`, `shuffle`, - * `slice`, `sort`, `sortBy`, `splice`, `spread`, `tail`, `take`, `takeRight`, - * `takeRightWhile`, `takeWhile`, `tap`, `throttle`, `thru`, `toArray`, - * `toPairs`, `toPairsIn`, `toPath`, `toPlainObject`, `transform`, `unary`, - * `union`, `unionBy`, `unionWith`, `uniq`, `uniqBy`, `uniqWith`, `unset`, - * `unshift`, `unzip`, `unzipWith`, `update`, `updateWith`, `values`, - * `valuesIn`, `without`, `wrap`, `xor`, `xorBy`, `xorWith`, `zip`, - * `zipObject`, `zipObjectDeep`, and `zipWith` - * - * The wrapper methods that are **not** chainable by default are: - * `add`, `attempt`, `camelCase`, `capitalize`, `ceil`, `clamp`, `clone`, - * `cloneDeep`, `cloneDeepWith`, `cloneWith`, `conformsTo`, `deburr`, - * `defaultTo`, `divide`, `each`, `eachRight`, `endsWith`, `eq`, `escape`, - * `escapeRegExp`, `every`, `find`, `findIndex`, `findKey`, `findLast`, - * `findLastIndex`, `findLastKey`, `first`, `floor`, `forEach`, `forEachRight`, - * `forIn`, `forInRight`, `forOwn`, `forOwnRight`, `get`, `gt`, `gte`, `has`, - * `hasIn`, `head`, `identity`, `includes`, `indexOf`, `inRange`, `invoke`, - * `isArguments`, `isArray`, `isArrayBuffer`, `isArrayLike`, `isArrayLikeObject`, - * `isBoolean`, `isBuffer`, `isDate`, `isElement`, `isEmpty`, `isEqual`, - * `isEqualWith`, `isError`, `isFinite`, `isFunction`, `isInteger`, `isLength`, - * `isMap`, `isMatch`, `isMatchWith`, `isNaN`, `isNative`, `isNil`, `isNull`, - * `isNumber`, `isObject`, `isObjectLike`, `isPlainObject`, `isRegExp`, - * `isSafeInteger`, `isSet`, `isString`, `isUndefined`, `isTypedArray`, - * `isWeakMap`, `isWeakSet`, `join`, `kebabCase`, `last`, `lastIndexOf`, - * `lowerCase`, `lowerFirst`, `lt`, `lte`, `max`, `maxBy`, `mean`, `meanBy`, - * `min`, `minBy`, `multiply`, `noConflict`, `noop`, `now`, `nth`, `pad`, - * `padEnd`, `padStart`, `parseInt`, `pop`, `random`, `reduce`, `reduceRight`, - * `repeat`, `result`, `round`, `runInContext`, `sample`, `shift`, `size`, - * `snakeCase`, `some`, `sortedIndex`, `sortedIndexBy`, `sortedLastIndex`, - * `sortedLastIndexBy`, `startCase`, `startsWith`, `stubArray`, `stubFalse`, - * `stubObject`, `stubString`, `stubTrue`, `subtract`, `sum`, `sumBy`, - * `template`, `times`, `toFinite`, `toInteger`, `toJSON`, `toLength`, - * `toLower`, `toNumber`, `toSafeInteger`, `toString`, `toUpper`, `trim`, - * `trimEnd`, `trimStart`, `truncate`, `unescape`, `uniqueId`, `upperCase`, - * `upperFirst`, `value`, and `words` - * - * @name _ - * @constructor - * @category Seq - * @param {*} value The value to wrap in a `lodash` instance. - * @returns {Object} Returns the new `lodash` wrapper instance. - * @example - * - * function square(n) { - * return n * n; - * } - * - * var wrapped = _([1, 2, 3]); - * - * // Returns an unwrapped value. - * wrapped.reduce(_.add); - * // => 6 - * - * // Returns a wrapped value. - * var squares = wrapped.map(square); - * - * _.isArray(squares); - * // => false - * - * _.isArray(squares.value()); - * // => true - */ - function lodash(value) { - if (isObjectLike(value) && !isArray(value) && !(value instanceof LazyWrapper)) { - if (value instanceof LodashWrapper) { - return value; - } - if (hasOwnProperty.call(value, '__wrapped__')) { - return wrapperClone(value); - } - } - return new LodashWrapper(value); - } - - /** - * The function whose prototype chain sequence wrappers inherit from. - * - * @private - */ - function baseLodash() { - // No operation performed. - } - - /** - * The base constructor for creating `lodash` wrapper objects. - * - * @private - * @param {*} value The value to wrap. - * @param {boolean} [chainAll] Enable explicit method chain sequences. - */ - function LodashWrapper(value, chainAll) { - this.__wrapped__ = value; - this.__actions__ = []; - this.__chain__ = !!chainAll; - this.__index__ = 0; - this.__values__ = undefined; - } - - /** - * By default, the template delimiters used by lodash are like those in - * embedded Ruby (ERB). Change the following template settings to use - * alternative delimiters. - * - * @static - * @memberOf _ - * @type {Object} - */ - lodash.templateSettings = { - - /** - * Used to detect `data` property values to be HTML-escaped. - * - * @memberOf _.templateSettings - * @type {RegExp} - */ - 'escape': reEscape, - - /** - * Used to detect code to be evaluated. - * - * @memberOf _.templateSettings - * @type {RegExp} - */ - 'evaluate': reEvaluate, - - /** - * Used to detect `data` property values to inject. - * - * @memberOf _.templateSettings - * @type {RegExp} - */ - 'interpolate': reInterpolate, - - /** - * Used to reference the data object in the template text. - * - * @memberOf _.templateSettings - * @type {string} - */ - 'variable': '', - - /** - * Used to import variables into the compiled template. - * - * @memberOf _.templateSettings - * @type {Object} - */ - 'imports': { - - /** - * A reference to the `lodash` function. - * - * @memberOf _.templateSettings.imports - * @type {Function} - */ - '_': lodash - } - }; - - // Ensure wrappers are instances of `baseLodash`. - lodash.prototype = baseLodash.prototype; - lodash.prototype.constructor = lodash; - - LodashWrapper.prototype = baseCreate(baseLodash.prototype); - LodashWrapper.prototype.constructor = LodashWrapper; - - /*------------------------------------------------------------------------*/ - - /** - * Creates a lazy wrapper object which wraps `value` to enable lazy evaluation. - * - * @private - * @constructor - * @param {*} value The value to wrap. - */ - function LazyWrapper(value) { - this.__wrapped__ = value; - this.__actions__ = []; - this.__dir__ = 1; - this.__filtered__ = false; - this.__iteratees__ = []; - this.__takeCount__ = MAX_ARRAY_LENGTH; - this.__views__ = []; - } - - /** - * Creates a clone of the lazy wrapper object. - * - * @private - * @name clone - * @memberOf LazyWrapper - * @returns {Object} Returns the cloned `LazyWrapper` object. - */ - function lazyClone() { - var result = new LazyWrapper(this.__wrapped__); - result.__actions__ = copyArray(this.__actions__); - result.__dir__ = this.__dir__; - result.__filtered__ = this.__filtered__; - result.__iteratees__ = copyArray(this.__iteratees__); - result.__takeCount__ = this.__takeCount__; - result.__views__ = copyArray(this.__views__); - return result; - } - - /** - * Reverses the direction of lazy iteration. - * - * @private - * @name reverse - * @memberOf LazyWrapper - * @returns {Object} Returns the new reversed `LazyWrapper` object. - */ - function lazyReverse() { - if (this.__filtered__) { - var result = new LazyWrapper(this); - result.__dir__ = -1; - result.__filtered__ = true; - } else { - result = this.clone(); - result.__dir__ *= -1; - } - return result; - } - - /** - * Extracts the unwrapped value from its lazy wrapper. - * - * @private - * @name value - * @memberOf LazyWrapper - * @returns {*} Returns the unwrapped value. - */ - function lazyValue() { - var array = this.__wrapped__.value(), - dir = this.__dir__, - isArr = isArray(array), - isRight = dir < 0, - arrLength = isArr ? array.length : 0, - view = getView(0, arrLength, this.__views__), - start = view.start, - end = view.end, - length = end - start, - index = isRight ? end : (start - 1), - iteratees = this.__iteratees__, - iterLength = iteratees.length, - resIndex = 0, - takeCount = nativeMin(length, this.__takeCount__); - - if (!isArr || arrLength < LARGE_ARRAY_SIZE || - (arrLength == length && takeCount == length)) { - return baseWrapperValue(array, this.__actions__); - } - var result = []; - - outer: - while (length-- && resIndex < takeCount) { - index += dir; - - var iterIndex = -1, - value = array[index]; - - while (++iterIndex < iterLength) { - var data = iteratees[iterIndex], - iteratee = data.iteratee, - type = data.type, - computed = iteratee(value); - - if (type == LAZY_MAP_FLAG) { - value = computed; - } else if (!computed) { - if (type == LAZY_FILTER_FLAG) { - continue outer; - } else { - break outer; - } - } - } - result[resIndex++] = value; - } - return result; - } - - // Ensure `LazyWrapper` is an instance of `baseLodash`. - LazyWrapper.prototype = baseCreate(baseLodash.prototype); - LazyWrapper.prototype.constructor = LazyWrapper; - - /*------------------------------------------------------------------------*/ - - /** - * Creates a hash object. - * - * @private - * @constructor - * @param {Array} [entries] The key-value pairs to cache. - */ - function Hash(entries) { - var index = -1, - length = entries ? entries.length : 0; - - this.clear(); - while (++index < length) { - var entry = entries[index]; - this.set(entry[0], entry[1]); - } - } - - /** - * Removes all key-value entries from the hash. - * - * @private - * @name clear - * @memberOf Hash - */ - function hashClear() { - this.__data__ = nativeCreate ? nativeCreate(null) : {}; - } - - /** - * Removes `key` and its value from the hash. - * - * @private - * @name delete - * @memberOf Hash - * @param {Object} hash The hash to modify. - * @param {string} key The key of the value to remove. - * @returns {boolean} Returns `true` if the entry was removed, else `false`. - */ - function hashDelete(key) { - return this.has(key) && delete this.__data__[key]; - } - - /** - * Gets the hash value for `key`. - * - * @private - * @name get - * @memberOf Hash - * @param {string} key The key of the value to get. - * @returns {*} Returns the entry value. - */ - function hashGet(key) { - var data = this.__data__; - if (nativeCreate) { - var result = data[key]; - return result === HASH_UNDEFINED ? undefined : result; - } - return hasOwnProperty.call(data, key) ? data[key] : undefined; - } - - /** - * Checks if a hash value for `key` exists. - * - * @private - * @name has - * @memberOf Hash - * @param {string} key The key of the entry to check. - * @returns {boolean} Returns `true` if an entry for `key` exists, else `false`. - */ - function hashHas(key) { - var data = this.__data__; - return nativeCreate ? data[key] !== undefined : hasOwnProperty.call(data, key); - } - - /** - * Sets the hash `key` to `value`. - * - * @private - * @name set - * @memberOf Hash - * @param {string} key The key of the value to set. - * @param {*} value The value to set. - * @returns {Object} Returns the hash instance. - */ - function hashSet(key, value) { - var data = this.__data__; - data[key] = (nativeCreate && value === undefined) ? HASH_UNDEFINED : value; - return this; - } - - // Add methods to `Hash`. - Hash.prototype.clear = hashClear; - Hash.prototype['delete'] = hashDelete; - Hash.prototype.get = hashGet; - Hash.prototype.has = hashHas; - Hash.prototype.set = hashSet; - - /*------------------------------------------------------------------------*/ - - /** - * Creates an list cache object. - * - * @private - * @constructor - * @param {Array} [entries] The key-value pairs to cache. - */ - function ListCache(entries) { - var index = -1, - length = entries ? entries.length : 0; - - this.clear(); - while (++index < length) { - var entry = entries[index]; - this.set(entry[0], entry[1]); - } - } - - /** - * Removes all key-value entries from the list cache. - * - * @private - * @name clear - * @memberOf ListCache - */ - function listCacheClear() { - this.__data__ = []; - } - - /** - * Removes `key` and its value from the list cache. - * - * @private - * @name delete - * @memberOf ListCache - * @param {string} key The key of the value to remove. - * @returns {boolean} Returns `true` if the entry was removed, else `false`. - */ - function listCacheDelete(key) { - var data = this.__data__, - index = assocIndexOf(data, key); - - if (index < 0) { - return false; - } - var lastIndex = data.length - 1; - if (index == lastIndex) { - data.pop(); - } else { - splice.call(data, index, 1); - } - return true; - } - - /** - * Gets the list cache value for `key`. - * - * @private - * @name get - * @memberOf ListCache - * @param {string} key The key of the value to get. - * @returns {*} Returns the entry value. - */ - function listCacheGet(key) { - var data = this.__data__, - index = assocIndexOf(data, key); - - return index < 0 ? undefined : data[index][1]; - } - - /** - * Checks if a list cache value for `key` exists. - * - * @private - * @name has - * @memberOf ListCache - * @param {string} key The key of the entry to check. - * @returns {boolean} Returns `true` if an entry for `key` exists, else `false`. - */ - function listCacheHas(key) { - return assocIndexOf(this.__data__, key) > -1; - } - - /** - * Sets the list cache `key` to `value`. - * - * @private - * @name set - * @memberOf ListCache - * @param {string} key The key of the value to set. - * @param {*} value The value to set. - * @returns {Object} Returns the list cache instance. - */ - function listCacheSet(key, value) { - var data = this.__data__, - index = assocIndexOf(data, key); - - if (index < 0) { - data.push([key, value]); - } else { - data[index][1] = value; - } - return this; - } - - // Add methods to `ListCache`. - ListCache.prototype.clear = listCacheClear; - ListCache.prototype['delete'] = listCacheDelete; - ListCache.prototype.get = listCacheGet; - ListCache.prototype.has = listCacheHas; - ListCache.prototype.set = listCacheSet; - - /*------------------------------------------------------------------------*/ - - /** - * Creates a map cache object to store key-value pairs. - * - * @private - * @constructor - * @param {Array} [entries] The key-value pairs to cache. - */ - function MapCache(entries) { - var index = -1, - length = entries ? entries.length : 0; - - this.clear(); - while (++index < length) { - var entry = entries[index]; - this.set(entry[0], entry[1]); - } - } - - /** - * Removes all key-value entries from the map. - * - * @private - * @name clear - * @memberOf MapCache - */ - function mapCacheClear() { - this.__data__ = { - 'hash': new Hash, - 'map': new (Map || ListCache), - 'string': new Hash - }; - } - - /** - * Removes `key` and its value from the map. - * - * @private - * @name delete - * @memberOf MapCache - * @param {string} key The key of the value to remove. - * @returns {boolean} Returns `true` if the entry was removed, else `false`. - */ - function mapCacheDelete(key) { - return getMapData(this, key)['delete'](key); - } - - /** - * Gets the map value for `key`. - * - * @private - * @name get - * @memberOf MapCache - * @param {string} key The key of the value to get. - * @returns {*} Returns the entry value. - */ - function mapCacheGet(key) { - return getMapData(this, key).get(key); - } - - /** - * Checks if a map value for `key` exists. - * - * @private - * @name has - * @memberOf MapCache - * @param {string} key The key of the entry to check. - * @returns {boolean} Returns `true` if an entry for `key` exists, else `false`. - */ - function mapCacheHas(key) { - return getMapData(this, key).has(key); - } - - /** - * Sets the map `key` to `value`. - * - * @private - * @name set - * @memberOf MapCache - * @param {string} key The key of the value to set. - * @param {*} value The value to set. - * @returns {Object} Returns the map cache instance. - */ - function mapCacheSet(key, value) { - getMapData(this, key).set(key, value); - return this; - } - - // Add methods to `MapCache`. - MapCache.prototype.clear = mapCacheClear; - MapCache.prototype['delete'] = mapCacheDelete; - MapCache.prototype.get = mapCacheGet; - MapCache.prototype.has = mapCacheHas; - MapCache.prototype.set = mapCacheSet; - - /*------------------------------------------------------------------------*/ - - /** - * - * Creates an array cache object to store unique values. - * - * @private - * @constructor - * @param {Array} [values] The values to cache. - */ - function SetCache(values) { - var index = -1, - length = values ? values.length : 0; - - this.__data__ = new MapCache; - while (++index < length) { - this.add(values[index]); - } - } - - /** - * Adds `value` to the array cache. - * - * @private - * @name add - * @memberOf SetCache - * @alias push - * @param {*} value The value to cache. - * @returns {Object} Returns the cache instance. - */ - function setCacheAdd(value) { - this.__data__.set(value, HASH_UNDEFINED); - return this; - } - - /** - * Checks if `value` is in the array cache. - * - * @private - * @name has - * @memberOf SetCache - * @param {*} value The value to search for. - * @returns {number} Returns `true` if `value` is found, else `false`. - */ - function setCacheHas(value) { - return this.__data__.has(value); - } - - // Add methods to `SetCache`. - SetCache.prototype.add = SetCache.prototype.push = setCacheAdd; - SetCache.prototype.has = setCacheHas; - - /*------------------------------------------------------------------------*/ - - /** - * Creates a stack cache object to store key-value pairs. - * - * @private - * @constructor - * @param {Array} [entries] The key-value pairs to cache. - */ - function Stack(entries) { - this.__data__ = new ListCache(entries); - } - - /** - * Removes all key-value entries from the stack. - * - * @private - * @name clear - * @memberOf Stack - */ - function stackClear() { - this.__data__ = new ListCache; - } - - /** - * Removes `key` and its value from the stack. - * - * @private - * @name delete - * @memberOf Stack - * @param {string} key The key of the value to remove. - * @returns {boolean} Returns `true` if the entry was removed, else `false`. - */ - function stackDelete(key) { - return this.__data__['delete'](key); - } - - /** - * Gets the stack value for `key`. - * - * @private - * @name get - * @memberOf Stack - * @param {string} key The key of the value to get. - * @returns {*} Returns the entry value. - */ - function stackGet(key) { - return this.__data__.get(key); - } - - /** - * Checks if a stack value for `key` exists. - * - * @private - * @name has - * @memberOf Stack - * @param {string} key The key of the entry to check. - * @returns {boolean} Returns `true` if an entry for `key` exists, else `false`. - */ - function stackHas(key) { - return this.__data__.has(key); - } - - /** - * Sets the stack `key` to `value`. - * - * @private - * @name set - * @memberOf Stack - * @param {string} key The key of the value to set. - * @param {*} value The value to set. - * @returns {Object} Returns the stack cache instance. - */ - function stackSet(key, value) { - var cache = this.__data__; - if (cache instanceof ListCache) { - var pairs = cache.__data__; - if (!Map || (pairs.length < LARGE_ARRAY_SIZE - 1)) { - pairs.push([key, value]); - return this; - } - cache = this.__data__ = new MapCache(pairs); - } - cache.set(key, value); - return this; - } - - // Add methods to `Stack`. - Stack.prototype.clear = stackClear; - Stack.prototype['delete'] = stackDelete; - Stack.prototype.get = stackGet; - Stack.prototype.has = stackHas; - Stack.prototype.set = stackSet; - - /*------------------------------------------------------------------------*/ - - /** - * Creates an array of the enumerable property names of the array-like `value`. - * - * @private - * @param {*} value The value to query. - * @param {boolean} inherited Specify returning inherited property names. - * @returns {Array} Returns the array of property names. - */ - function arrayLikeKeys(value, inherited) { - // Safari 8.1 makes `arguments.callee` enumerable in strict mode. - // Safari 9 makes `arguments.length` enumerable in strict mode. - var result = (isArray(value) || isArguments(value)) - ? baseTimes(value.length, String) - : []; - - var length = result.length, - skipIndexes = !!length; - - for (var key in value) { - if ((inherited || hasOwnProperty.call(value, key)) && - !(skipIndexes && (key == 'length' || isIndex(key, length)))) { - result.push(key); - } - } - return result; - } - - /** - * Used by `_.defaults` to customize its `_.assignIn` use. - * - * @private - * @param {*} objValue The destination value. - * @param {*} srcValue The source value. - * @param {string} key The key of the property to assign. - * @param {Object} object The parent object of `objValue`. - * @returns {*} Returns the value to assign. - */ - function assignInDefaults(objValue, srcValue, key, object) { - if (objValue === undefined || - (eq(objValue, objectProto[key]) && !hasOwnProperty.call(object, key))) { - return srcValue; - } - return objValue; - } - - /** - * This function is like `assignValue` except that it doesn't assign - * `undefined` values. - * - * @private - * @param {Object} object The object to modify. - * @param {string} key The key of the property to assign. - * @param {*} value The value to assign. - */ - function assignMergeValue(object, key, value) { - if ((value !== undefined && !eq(object[key], value)) || - (typeof key == 'number' && value === undefined && !(key in object))) { - object[key] = value; - } - } - - /** - * Assigns `value` to `key` of `object` if the existing value is not equivalent - * using [`SameValueZero`](http://ecma-international.org/ecma-262/7.0/#sec-samevaluezero) - * for equality comparisons. - * - * @private - * @param {Object} object The object to modify. - * @param {string} key The key of the property to assign. - * @param {*} value The value to assign. - */ - function assignValue(object, key, value) { - var objValue = object[key]; - if (!(hasOwnProperty.call(object, key) && eq(objValue, value)) || - (value === undefined && !(key in object))) { - object[key] = value; - } - } - - /** - * Gets the index at which the `key` is found in `array` of key-value pairs. - * - * @private - * @param {Array} array The array to inspect. - * @param {*} key The key to search for. - * @returns {number} Returns the index of the matched value, else `-1`. - */ - function assocIndexOf(array, key) { - var length = array.length; - while (length--) { - if (eq(array[length][0], key)) { - return length; - } - } - return -1; - } - - /** - * Aggregates elements of `collection` on `accumulator` with keys transformed - * by `iteratee` and values set by `setter`. - * - * @private - * @param {Array|Object} collection The collection to iterate over. - * @param {Function} setter The function to set `accumulator` values. - * @param {Function} iteratee The iteratee to transform keys. - * @param {Object} accumulator The initial aggregated object. - * @returns {Function} Returns `accumulator`. - */ - function baseAggregator(collection, setter, iteratee, accumulator) { - baseEach(collection, function(value, key, collection) { - setter(accumulator, value, iteratee(value), collection); - }); - return accumulator; - } - - /** - * The base implementation of `_.assign` without support for multiple sources - * or `customizer` functions. - * - * @private - * @param {Object} object The destination object. - * @param {Object} source The source object. - * @returns {Object} Returns `object`. - */ - function baseAssign(object, source) { - return object && copyObject(source, keys(source), object); - } - - /** - * The base implementation of `_.at` without support for individual paths. - * - * @private - * @param {Object} object The object to iterate over. - * @param {string[]} paths The property paths of elements to pick. - * @returns {Array} Returns the picked elements. - */ - function baseAt(object, paths) { - var index = -1, - isNil = object == null, - length = paths.length, - result = Array(length); - - while (++index < length) { - result[index] = isNil ? undefined : get(object, paths[index]); - } - return result; - } - - /** - * The base implementation of `_.clamp` which doesn't coerce arguments. - * - * @private - * @param {number} number The number to clamp. - * @param {number} [lower] The lower bound. - * @param {number} upper The upper bound. - * @returns {number} Returns the clamped number. - */ - function baseClamp(number, lower, upper) { - if (number === number) { - if (upper !== undefined) { - number = number <= upper ? number : upper; - } - if (lower !== undefined) { - number = number >= lower ? number : lower; - } - } - return number; - } - - /** - * The base implementation of `_.clone` and `_.cloneDeep` which tracks - * traversed objects. - * - * @private - * @param {*} value The value to clone. - * @param {boolean} [isDeep] Specify a deep clone. - * @param {boolean} [isFull] Specify a clone including symbols. - * @param {Function} [customizer] The function to customize cloning. - * @param {string} [key] The key of `value`. - * @param {Object} [object] The parent object of `value`. - * @param {Object} [stack] Tracks traversed objects and their clone counterparts. - * @returns {*} Returns the cloned value. - */ - function baseClone(value, isDeep, isFull, customizer, key, object, stack) { - var result; - if (customizer) { - result = object ? customizer(value, key, object, stack) : customizer(value); - } - if (result !== undefined) { - return result; - } - if (!isObject(value)) { - return value; - } - var isArr = isArray(value); - if (isArr) { - result = initCloneArray(value); - if (!isDeep) { - return copyArray(value, result); - } - } else { - var tag = getTag(value), - isFunc = tag == funcTag || tag == genTag; - - if (isBuffer(value)) { - return cloneBuffer(value, isDeep); - } - if (tag == objectTag || tag == argsTag || (isFunc && !object)) { - if (isHostObject(value)) { - return object ? value : {}; - } - result = initCloneObject(isFunc ? {} : value); - if (!isDeep) { - return copySymbols(value, baseAssign(result, value)); - } - } else { - if (!cloneableTags[tag]) { - return object ? value : {}; - } - result = initCloneByTag(value, tag, baseClone, isDeep); - } - } - // Check for circular references and return its corresponding clone. - stack || (stack = new Stack); - var stacked = stack.get(value); - if (stacked) { - return stacked; - } - stack.set(value, result); - - if (!isArr) { - var props = isFull ? getAllKeys(value) : keys(value); - } - arrayEach(props || value, function(subValue, key) { - if (props) { - key = subValue; - subValue = value[key]; - } - // Recursively populate clone (susceptible to call stack limits). - assignValue(result, key, baseClone(subValue, isDeep, isFull, customizer, key, value, stack)); - }); - return result; - } - - /** - * The base implementation of `_.conforms` which doesn't clone `source`. - * - * @private - * @param {Object} source The object of property predicates to conform to. - * @returns {Function} Returns the new spec function. - */ - function baseConforms(source) { - var props = keys(source); - return function(object) { - return baseConformsTo(object, source, props); - }; - } - - /** - * The base implementation of `_.conformsTo` which accepts `props` to check. - * - * @private - * @param {Object} object The object to inspect. - * @param {Object} source The object of property predicates to conform to. - * @returns {boolean} Returns `true` if `object` conforms, else `false`. - */ - function baseConformsTo(object, source, props) { - var length = props.length; - if (object == null) { - return !length; - } - object = Object(object); - while (length--) { - var key = props[length], - predicate = source[key], - value = object[key]; - - if ((value === undefined && !(key in object)) || !predicate(value)) { - return false; - } - } - return true; - } - - /** - * The base implementation of `_.create` without support for assigning - * properties to the created object. - * - * @private - * @param {Object} prototype The object to inherit from. - * @returns {Object} Returns the new object. - */ - function baseCreate(proto) { - return isObject(proto) ? objectCreate(proto) : {}; - } - - /** - * The base implementation of `_.delay` and `_.defer` which accepts `args` - * to provide to `func`. - * - * @private - * @param {Function} func The function to delay. - * @param {number} wait The number of milliseconds to delay invocation. - * @param {Array} args The arguments to provide to `func`. - * @returns {number|Object} Returns the timer id or timeout object. - */ - function baseDelay(func, wait, args) { - if (typeof func != 'function') { - throw new TypeError(FUNC_ERROR_TEXT); - } - return setTimeout(function() { func.apply(undefined, args); }, wait); - } - - /** - * The base implementation of methods like `_.difference` without support - * for excluding multiple arrays or iteratee shorthands. - * - * @private - * @param {Array} array The array to inspect. - * @param {Array} values The values to exclude. - * @param {Function} [iteratee] The iteratee invoked per element. - * @param {Function} [comparator] The comparator invoked per element. - * @returns {Array} Returns the new array of filtered values. - */ - function baseDifference(array, values, iteratee, comparator) { - var index = -1, - includes = arrayIncludes, - isCommon = true, - length = array.length, - result = [], - valuesLength = values.length; - - if (!length) { - return result; - } - if (iteratee) { - values = arrayMap(values, baseUnary(iteratee)); - } - if (comparator) { - includes = arrayIncludesWith; - isCommon = false; - } - else if (values.length >= LARGE_ARRAY_SIZE) { - includes = cacheHas; - isCommon = false; - values = new SetCache(values); - } - outer: - while (++index < length) { - var value = array[index], - computed = iteratee ? iteratee(value) : value; - - value = (comparator || value !== 0) ? value : 0; - if (isCommon && computed === computed) { - var valuesIndex = valuesLength; - while (valuesIndex--) { - if (values[valuesIndex] === computed) { - continue outer; - } - } - result.push(value); - } - else if (!includes(values, computed, comparator)) { - result.push(value); - } - } - return result; - } - - /** - * The base implementation of `_.forEach` without support for iteratee shorthands. - * - * @private - * @param {Array|Object} collection The collection to iterate over. - * @param {Function} iteratee The function invoked per iteration. - * @returns {Array|Object} Returns `collection`. - */ - var baseEach = createBaseEach(baseForOwn); - - /** - * The base implementation of `_.forEachRight` without support for iteratee shorthands. - * - * @private - * @param {Array|Object} collection The collection to iterate over. - * @param {Function} iteratee The function invoked per iteration. - * @returns {Array|Object} Returns `collection`. - */ - var baseEachRight = createBaseEach(baseForOwnRight, true); - - /** - * The base implementation of `_.every` without support for iteratee shorthands. - * - * @private - * @param {Array|Object} collection The collection to iterate over. - * @param {Function} predicate The function invoked per iteration. - * @returns {boolean} Returns `true` if all elements pass the predicate check, - * else `false` - */ - function baseEvery(collection, predicate) { - var result = true; - baseEach(collection, function(value, index, collection) { - result = !!predicate(value, index, collection); - return result; - }); - return result; - } - - /** - * The base implementation of methods like `_.max` and `_.min` which accepts a - * `comparator` to determine the extremum value. - * - * @private - * @param {Array} array The array to iterate over. - * @param {Function} iteratee The iteratee invoked per iteration. - * @param {Function} comparator The comparator used to compare values. - * @returns {*} Returns the extremum value. - */ - function baseExtremum(array, iteratee, comparator) { - var index = -1, - length = array.length; - - while (++index < length) { - var value = array[index], - current = iteratee(value); - - if (current != null && (computed === undefined - ? (current === current && !isSymbol(current)) - : comparator(current, computed) - )) { - var computed = current, - result = value; - } - } - return result; - } - - /** - * The base implementation of `_.fill` without an iteratee call guard. - * - * @private - * @param {Array} array The array to fill. - * @param {*} value The value to fill `array` with. - * @param {number} [start=0] The start position. - * @param {number} [end=array.length] The end position. - * @returns {Array} Returns `array`. - */ - function baseFill(array, value, start, end) { - var length = array.length; - - start = toInteger(start); - if (start < 0) { - start = -start > length ? 0 : (length + start); - } - end = (end === undefined || end > length) ? length : toInteger(end); - if (end < 0) { - end += length; - } - end = start > end ? 0 : toLength(end); - while (start < end) { - array[start++] = value; - } - return array; - } - - /** - * The base implementation of `_.filter` without support for iteratee shorthands. - * - * @private - * @param {Array|Object} collection The collection to iterate over. - * @param {Function} predicate The function invoked per iteration. - * @returns {Array} Returns the new filtered array. - */ - function baseFilter(collection, predicate) { - var result = []; - baseEach(collection, function(value, index, collection) { - if (predicate(value, index, collection)) { - result.push(value); - } - }); - return result; - } - - /** - * The base implementation of `_.flatten` with support for restricting flattening. - * - * @private - * @param {Array} array The array to flatten. - * @param {number} depth The maximum recursion depth. - * @param {boolean} [predicate=isFlattenable] The function invoked per iteration. - * @param {boolean} [isStrict] Restrict to values that pass `predicate` checks. - * @param {Array} [result=[]] The initial result value. - * @returns {Array} Returns the new flattened array. - */ - function baseFlatten(array, depth, predicate, isStrict, result) { - var index = -1, - length = array.length; - - predicate || (predicate = isFlattenable); - result || (result = []); - - while (++index < length) { - var value = array[index]; - if (depth > 0 && predicate(value)) { - if (depth > 1) { - // Recursively flatten arrays (susceptible to call stack limits). - baseFlatten(value, depth - 1, predicate, isStrict, result); - } else { - arrayPush(result, value); - } - } else if (!isStrict) { - result[result.length] = value; - } - } - return result; - } - - /** - * The base implementation of `baseForOwn` which iterates over `object` - * properties returned by `keysFunc` and invokes `iteratee` for each property. - * Iteratee functions may exit iteration early by explicitly returning `false`. - * - * @private - * @param {Object} object The object to iterate over. - * @param {Function} iteratee The function invoked per iteration. - * @param {Function} keysFunc The function to get the keys of `object`. - * @returns {Object} Returns `object`. - */ - var baseFor = createBaseFor(); - - /** - * This function is like `baseFor` except that it iterates over properties - * in the opposite order. - * - * @private - * @param {Object} object The object to iterate over. - * @param {Function} iteratee The function invoked per iteration. - * @param {Function} keysFunc The function to get the keys of `object`. - * @returns {Object} Returns `object`. - */ - var baseForRight = createBaseFor(true); - - /** - * The base implementation of `_.forOwn` without support for iteratee shorthands. - * - * @private - * @param {Object} object The object to iterate over. - * @param {Function} iteratee The function invoked per iteration. - * @returns {Object} Returns `object`. - */ - function baseForOwn(object, iteratee) { - return object && baseFor(object, iteratee, keys); - } - - /** - * The base implementation of `_.forOwnRight` without support for iteratee shorthands. - * - * @private - * @param {Object} object The object to iterate over. - * @param {Function} iteratee The function invoked per iteration. - * @returns {Object} Returns `object`. - */ - function baseForOwnRight(object, iteratee) { - return object && baseForRight(object, iteratee, keys); - } - - /** - * The base implementation of `_.functions` which creates an array of - * `object` function property names filtered from `props`. - * - * @private - * @param {Object} object The object to inspect. - * @param {Array} props The property names to filter. - * @returns {Array} Returns the function names. - */ - function baseFunctions(object, props) { - return arrayFilter(props, function(key) { - return isFunction(object[key]); - }); - } - - /** - * The base implementation of `_.get` without support for default values. - * - * @private - * @param {Object} object The object to query. - * @param {Array|string} path The path of the property to get. - * @returns {*} Returns the resolved value. - */ - function baseGet(object, path) { - path = isKey(path, object) ? [path] : castPath(path); - - var index = 0, - length = path.length; - - while (object != null && index < length) { - object = object[toKey(path[index++])]; - } - return (index && index == length) ? object : undefined; - } - - /** - * The base implementation of `getAllKeys` and `getAllKeysIn` which uses - * `keysFunc` and `symbolsFunc` to get the enumerable property names and - * symbols of `object`. - * - * @private - * @param {Object} object The object to query. - * @param {Function} keysFunc The function to get the keys of `object`. - * @param {Function} symbolsFunc The function to get the symbols of `object`. - * @returns {Array} Returns the array of property names and symbols. - */ - function baseGetAllKeys(object, keysFunc, symbolsFunc) { - var result = keysFunc(object); - return isArray(object) ? result : arrayPush(result, symbolsFunc(object)); - } - - /** - * The base implementation of `getTag`. - * - * @private - * @param {*} value The value to query. - * @returns {string} Returns the `toStringTag`. - */ - function baseGetTag(value) { - return objectToString.call(value); - } - - /** - * The base implementation of `_.gt` which doesn't coerce arguments. - * - * @private - * @param {*} value The value to compare. - * @param {*} other The other value to compare. - * @returns {boolean} Returns `true` if `value` is greater than `other`, - * else `false`. - */ - function baseGt(value, other) { - return value > other; - } - - /** - * The base implementation of `_.has` without support for deep paths. - * - * @private - * @param {Object} [object] The object to query. - * @param {Array|string} key The key to check. - * @returns {boolean} Returns `true` if `key` exists, else `false`. - */ - function baseHas(object, key) { - return object != null && hasOwnProperty.call(object, key); - } - - /** - * The base implementation of `_.hasIn` without support for deep paths. - * - * @private - * @param {Object} [object] The object to query. - * @param {Array|string} key The key to check. - * @returns {boolean} Returns `true` if `key` exists, else `false`. - */ - function baseHasIn(object, key) { - return object != null && key in Object(object); - } - - /** - * The base implementation of `_.inRange` which doesn't coerce arguments. - * - * @private - * @param {number} number The number to check. - * @param {number} start The start of the range. - * @param {number} end The end of the range. - * @returns {boolean} Returns `true` if `number` is in the range, else `false`. - */ - function baseInRange(number, start, end) { - return number >= nativeMin(start, end) && number < nativeMax(start, end); - } - - /** - * The base implementation of methods like `_.intersection`, without support - * for iteratee shorthands, that accepts an array of arrays to inspect. - * - * @private - * @param {Array} arrays The arrays to inspect. - * @param {Function} [iteratee] The iteratee invoked per element. - * @param {Function} [comparator] The comparator invoked per element. - * @returns {Array} Returns the new array of shared values. - */ - function baseIntersection(arrays, iteratee, comparator) { - var includes = comparator ? arrayIncludesWith : arrayIncludes, - length = arrays[0].length, - othLength = arrays.length, - othIndex = othLength, - caches = Array(othLength), - maxLength = Infinity, - result = []; - - while (othIndex--) { - var array = arrays[othIndex]; - if (othIndex && iteratee) { - array = arrayMap(array, baseUnary(iteratee)); - } - maxLength = nativeMin(array.length, maxLength); - caches[othIndex] = !comparator && (iteratee || (length >= 120 && array.length >= 120)) - ? new SetCache(othIndex && array) - : undefined; - } - array = arrays[0]; - - var index = -1, - seen = caches[0]; - - outer: - while (++index < length && result.length < maxLength) { - var value = array[index], - computed = iteratee ? iteratee(value) : value; - - value = (comparator || value !== 0) ? value : 0; - if (!(seen - ? cacheHas(seen, computed) - : includes(result, computed, comparator) - )) { - othIndex = othLength; - while (--othIndex) { - var cache = caches[othIndex]; - if (!(cache - ? cacheHas(cache, computed) - : includes(arrays[othIndex], computed, comparator)) - ) { - continue outer; - } - } - if (seen) { - seen.push(computed); - } - result.push(value); - } - } - return result; - } - - /** - * The base implementation of `_.invert` and `_.invertBy` which inverts - * `object` with values transformed by `iteratee` and set by `setter`. - * - * @private - * @param {Object} object The object to iterate over. - * @param {Function} setter The function to set `accumulator` values. - * @param {Function} iteratee The iteratee to transform values. - * @param {Object} accumulator The initial inverted object. - * @returns {Function} Returns `accumulator`. - */ - function baseInverter(object, setter, iteratee, accumulator) { - baseForOwn(object, function(value, key, object) { - setter(accumulator, iteratee(value), key, object); - }); - return accumulator; - } - - /** - * The base implementation of `_.invoke` without support for individual - * method arguments. - * - * @private - * @param {Object} object The object to query. - * @param {Array|string} path The path of the method to invoke. - * @param {Array} args The arguments to invoke the method with. - * @returns {*} Returns the result of the invoked method. - */ - function baseInvoke(object, path, args) { - if (!isKey(path, object)) { - path = castPath(path); - object = parent(object, path); - path = last(path); - } - var func = object == null ? object : object[toKey(path)]; - return func == null ? undefined : apply(func, object, args); - } - - /** - * The base implementation of `_.isArrayBuffer` without Node.js optimizations. - * - * @private - * @param {*} value The value to check. - * @returns {boolean} Returns `true` if `value` is an array buffer, else `false`. - */ - function baseIsArrayBuffer(value) { - return isObjectLike(value) && objectToString.call(value) == arrayBufferTag; - } - - /** - * The base implementation of `_.isDate` without Node.js optimizations. - * - * @private - * @param {*} value The value to check. - * @returns {boolean} Returns `true` if `value` is a date object, else `false`. - */ - function baseIsDate(value) { - return isObjectLike(value) && objectToString.call(value) == dateTag; - } - - /** - * The base implementation of `_.isEqual` which supports partial comparisons - * and tracks traversed objects. - * - * @private - * @param {*} value The value to compare. - * @param {*} other The other value to compare. - * @param {Function} [customizer] The function to customize comparisons. - * @param {boolean} [bitmask] The bitmask of comparison flags. - * The bitmask may be composed of the following flags: - * 1 - Unordered comparison - * 2 - Partial comparison - * @param {Object} [stack] Tracks traversed `value` and `other` objects. - * @returns {boolean} Returns `true` if the values are equivalent, else `false`. - */ - function baseIsEqual(value, other, customizer, bitmask, stack) { - if (value === other) { - return true; - } - if (value == null || other == null || (!isObject(value) && !isObjectLike(other))) { - return value !== value && other !== other; - } - return baseIsEqualDeep(value, other, baseIsEqual, customizer, bitmask, stack); - } - - /** - * A specialized version of `baseIsEqual` for arrays and objects which performs - * deep comparisons and tracks traversed objects enabling objects with circular - * references to be compared. - * - * @private - * @param {Object} object The object to compare. - * @param {Object} other The other object to compare. - * @param {Function} equalFunc The function to determine equivalents of values. - * @param {Function} [customizer] The function to customize comparisons. - * @param {number} [bitmask] The bitmask of comparison flags. See `baseIsEqual` - * for more details. - * @param {Object} [stack] Tracks traversed `object` and `other` objects. - * @returns {boolean} Returns `true` if the objects are equivalent, else `false`. - */ - function baseIsEqualDeep(object, other, equalFunc, customizer, bitmask, stack) { - var objIsArr = isArray(object), - othIsArr = isArray(other), - objTag = arrayTag, - othTag = arrayTag; - - if (!objIsArr) { - objTag = getTag(object); - objTag = objTag == argsTag ? objectTag : objTag; - } - if (!othIsArr) { - othTag = getTag(other); - othTag = othTag == argsTag ? objectTag : othTag; - } - var objIsObj = objTag == objectTag && !isHostObject(object), - othIsObj = othTag == objectTag && !isHostObject(other), - isSameTag = objTag == othTag; - - if (isSameTag && !objIsObj) { - stack || (stack = new Stack); - return (objIsArr || isTypedArray(object)) - ? equalArrays(object, other, equalFunc, customizer, bitmask, stack) - : equalByTag(object, other, objTag, equalFunc, customizer, bitmask, stack); - } - if (!(bitmask & PARTIAL_COMPARE_FLAG)) { - var objIsWrapped = objIsObj && hasOwnProperty.call(object, '__wrapped__'), - othIsWrapped = othIsObj && hasOwnProperty.call(other, '__wrapped__'); - - if (objIsWrapped || othIsWrapped) { - var objUnwrapped = objIsWrapped ? object.value() : object, - othUnwrapped = othIsWrapped ? other.value() : other; - - stack || (stack = new Stack); - return equalFunc(objUnwrapped, othUnwrapped, customizer, bitmask, stack); - } - } - if (!isSameTag) { - return false; - } - stack || (stack = new Stack); - return equalObjects(object, other, equalFunc, customizer, bitmask, stack); - } - - /** - * The base implementation of `_.isMap` without Node.js optimizations. - * - * @private - * @param {*} value The value to check. - * @returns {boolean} Returns `true` if `value` is a map, else `false`. - */ - function baseIsMap(value) { - return isObjectLike(value) && getTag(value) == mapTag; - } - - /** - * The base implementation of `_.isMatch` without support for iteratee shorthands. - * - * @private - * @param {Object} object The object to inspect. - * @param {Object} source The object of property values to match. - * @param {Array} matchData The property names, values, and compare flags to match. - * @param {Function} [customizer] The function to customize comparisons. - * @returns {boolean} Returns `true` if `object` is a match, else `false`. - */ - function baseIsMatch(object, source, matchData, customizer) { - var index = matchData.length, - length = index, - noCustomizer = !customizer; - - if (object == null) { - return !length; - } - object = Object(object); - while (index--) { - var data = matchData[index]; - if ((noCustomizer && data[2]) - ? data[1] !== object[data[0]] - : !(data[0] in object) - ) { - return false; - } - } - while (++index < length) { - data = matchData[index]; - var key = data[0], - objValue = object[key], - srcValue = data[1]; - - if (noCustomizer && data[2]) { - if (objValue === undefined && !(key in object)) { - return false; - } - } else { - var stack = new Stack; - if (customizer) { - var result = customizer(objValue, srcValue, key, object, source, stack); - } - if (!(result === undefined - ? baseIsEqual(srcValue, objValue, customizer, UNORDERED_COMPARE_FLAG | PARTIAL_COMPARE_FLAG, stack) - : result - )) { - return false; - } - } - } - return true; - } - - /** - * The base implementation of `_.isNative` without bad shim checks. - * - * @private - * @param {*} value The value to check. - * @returns {boolean} Returns `true` if `value` is a native function, - * else `false`. - */ - function baseIsNative(value) { - if (!isObject(value) || isMasked(value)) { - return false; - } - var pattern = (isFunction(value) || isHostObject(value)) ? reIsNative : reIsHostCtor; - return pattern.test(toSource(value)); - } - - /** - * The base implementation of `_.isRegExp` without Node.js optimizations. - * - * @private - * @param {*} value The value to check. - * @returns {boolean} Returns `true` if `value` is a regexp, else `false`. - */ - function baseIsRegExp(value) { - return isObject(value) && objectToString.call(value) == regexpTag; - } - - /** - * The base implementation of `_.isSet` without Node.js optimizations. - * - * @private - * @param {*} value The value to check. - * @returns {boolean} Returns `true` if `value` is a set, else `false`. - */ - function baseIsSet(value) { - return isObjectLike(value) && getTag(value) == setTag; - } - - /** - * The base implementation of `_.isTypedArray` without Node.js optimizations. - * - * @private - * @param {*} value The value to check. - * @returns {boolean} Returns `true` if `value` is a typed array, else `false`. - */ - function baseIsTypedArray(value) { - return isObjectLike(value) && - isLength(value.length) && !!typedArrayTags[objectToString.call(value)]; - } - - /** - * The base implementation of `_.iteratee`. - * - * @private - * @param {*} [value=_.identity] The value to convert to an iteratee. - * @returns {Function} Returns the iteratee. - */ - function baseIteratee(value) { - // Don't store the `typeof` result in a variable to avoid a JIT bug in Safari 9. - // See https://bugs.webkit.org/show_bug.cgi?id=156034 for more details. - if (typeof value == 'function') { - return value; - } - if (value == null) { - return identity; - } - if (typeof value == 'object') { - return isArray(value) - ? baseMatchesProperty(value[0], value[1]) - : baseMatches(value); - } - return property(value); - } - - /** - * The base implementation of `_.keys` which doesn't treat sparse arrays as dense. - * - * @private - * @param {Object} object The object to query. - * @returns {Array} Returns the array of property names. - */ - function baseKeys(object) { - if (!isPrototype(object)) { - return nativeKeys(object); - } - var result = []; - for (var key in Object(object)) { - if (hasOwnProperty.call(object, key) && key != 'constructor') { - result.push(key); - } - } - return result; - } - - /** - * The base implementation of `_.keysIn` which doesn't treat sparse arrays as dense. - * - * @private - * @param {Object} object The object to query. - * @returns {Array} Returns the array of property names. - */ - function baseKeysIn(object) { - if (!isObject(object)) { - return nativeKeysIn(object); - } - var isProto = isPrototype(object), - result = []; - - for (var key in object) { - if (!(key == 'constructor' && (isProto || !hasOwnProperty.call(object, key)))) { - result.push(key); - } - } - return result; - } - - /** - * The base implementation of `_.lt` which doesn't coerce arguments. - * - * @private - * @param {*} value The value to compare. - * @param {*} other The other value to compare. - * @returns {boolean} Returns `true` if `value` is less than `other`, - * else `false`. - */ - function baseLt(value, other) { - return value < other; - } - - /** - * The base implementation of `_.map` without support for iteratee shorthands. - * - * @private - * @param {Array|Object} collection The collection to iterate over. - * @param {Function} iteratee The function invoked per iteration. - * @returns {Array} Returns the new mapped array. - */ - function baseMap(collection, iteratee) { - var index = -1, - result = isArrayLike(collection) ? Array(collection.length) : []; - - baseEach(collection, function(value, key, collection) { - result[++index] = iteratee(value, key, collection); - }); - return result; - } - - /** - * The base implementation of `_.matches` which doesn't clone `source`. - * - * @private - * @param {Object} source The object of property values to match. - * @returns {Function} Returns the new spec function. - */ - function baseMatches(source) { - var matchData = getMatchData(source); - if (matchData.length == 1 && matchData[0][2]) { - return matchesStrictComparable(matchData[0][0], matchData[0][1]); - } - return function(object) { - return object === source || baseIsMatch(object, source, matchData); - }; - } - - /** - * The base implementation of `_.matchesProperty` which doesn't clone `srcValue`. - * - * @private - * @param {string} path The path of the property to get. - * @param {*} srcValue The value to match. - * @returns {Function} Returns the new spec function. - */ - function baseMatchesProperty(path, srcValue) { - if (isKey(path) && isStrictComparable(srcValue)) { - return matchesStrictComparable(toKey(path), srcValue); - } - return function(object) { - var objValue = get(object, path); - return (objValue === undefined && objValue === srcValue) - ? hasIn(object, path) - : baseIsEqual(srcValue, objValue, undefined, UNORDERED_COMPARE_FLAG | PARTIAL_COMPARE_FLAG); - }; - } - - /** - * The base implementation of `_.merge` without support for multiple sources. - * - * @private - * @param {Object} object The destination object. - * @param {Object} source The source object. - * @param {number} srcIndex The index of `source`. - * @param {Function} [customizer] The function to customize merged values. - * @param {Object} [stack] Tracks traversed source values and their merged - * counterparts. - */ - function baseMerge(object, source, srcIndex, customizer, stack) { - if (object === source) { - return; - } - if (!(isArray(source) || isTypedArray(source))) { - var props = baseKeysIn(source); - } - arrayEach(props || source, function(srcValue, key) { - if (props) { - key = srcValue; - srcValue = source[key]; - } - if (isObject(srcValue)) { - stack || (stack = new Stack); - baseMergeDeep(object, source, key, srcIndex, baseMerge, customizer, stack); - } - else { - var newValue = customizer - ? customizer(object[key], srcValue, (key + ''), object, source, stack) - : undefined; - - if (newValue === undefined) { - newValue = srcValue; - } - assignMergeValue(object, key, newValue); - } - }); - } - - /** - * A specialized version of `baseMerge` for arrays and objects which performs - * deep merges and tracks traversed objects enabling objects with circular - * references to be merged. - * - * @private - * @param {Object} object The destination object. - * @param {Object} source The source object. - * @param {string} key The key of the value to merge. - * @param {number} srcIndex The index of `source`. - * @param {Function} mergeFunc The function to merge values. - * @param {Function} [customizer] The function to customize assigned values. - * @param {Object} [stack] Tracks traversed source values and their merged - * counterparts. - */ - function baseMergeDeep(object, source, key, srcIndex, mergeFunc, customizer, stack) { - var objValue = object[key], - srcValue = source[key], - stacked = stack.get(srcValue); - - if (stacked) { - assignMergeValue(object, key, stacked); - return; - } - var newValue = customizer - ? customizer(objValue, srcValue, (key + ''), object, source, stack) - : undefined; - - var isCommon = newValue === undefined; - - if (isCommon) { - newValue = srcValue; - if (isArray(srcValue) || isTypedArray(srcValue)) { - if (isArray(objValue)) { - newValue = objValue; - } - else if (isArrayLikeObject(objValue)) { - newValue = copyArray(objValue); - } - else { - isCommon = false; - newValue = baseClone(srcValue, true); - } - } - else if (isPlainObject(srcValue) || isArguments(srcValue)) { - if (isArguments(objValue)) { - newValue = toPlainObject(objValue); - } - else if (!isObject(objValue) || (srcIndex && isFunction(objValue))) { - isCommon = false; - newValue = baseClone(srcValue, true); - } - else { - newValue = objValue; - } - } - else { - isCommon = false; - } - } - if (isCommon) { - // Recursively merge objects and arrays (susceptible to call stack limits). - stack.set(srcValue, newValue); - mergeFunc(newValue, srcValue, srcIndex, customizer, stack); - stack['delete'](srcValue); - } - assignMergeValue(object, key, newValue); - } - - /** - * The base implementation of `_.nth` which doesn't coerce arguments. - * - * @private - * @param {Array} array The array to query. - * @param {number} n The index of the element to return. - * @returns {*} Returns the nth element of `array`. - */ - function baseNth(array, n) { - var length = array.length; - if (!length) { - return; - } - n += n < 0 ? length : 0; - return isIndex(n, length) ? array[n] : undefined; - } - - /** - * The base implementation of `_.orderBy` without param guards. - * - * @private - * @param {Array|Object} collection The collection to iterate over. - * @param {Function[]|Object[]|string[]} iteratees The iteratees to sort by. - * @param {string[]} orders The sort orders of `iteratees`. - * @returns {Array} Returns the new sorted array. - */ - function baseOrderBy(collection, iteratees, orders) { - var index = -1; - iteratees = arrayMap(iteratees.length ? iteratees : [identity], baseUnary(getIteratee())); - - var result = baseMap(collection, function(value, key, collection) { - var criteria = arrayMap(iteratees, function(iteratee) { - return iteratee(value); - }); - return { 'criteria': criteria, 'index': ++index, 'value': value }; - }); - - return baseSortBy(result, function(object, other) { - return compareMultiple(object, other, orders); - }); - } - - /** - * The base implementation of `_.pick` without support for individual - * property identifiers. - * - * @private - * @param {Object} object The source object. - * @param {string[]} props The property identifiers to pick. - * @returns {Object} Returns the new object. - */ - function basePick(object, props) { - object = Object(object); - return basePickBy(object, props, function(value, key) { - return key in object; - }); - } - - /** - * The base implementation of `_.pickBy` without support for iteratee shorthands. - * - * @private - * @param {Object} object The source object. - * @param {string[]} props The property identifiers to pick from. - * @param {Function} predicate The function invoked per property. - * @returns {Object} Returns the new object. - */ - function basePickBy(object, props, predicate) { - var index = -1, - length = props.length, - result = {}; - - while (++index < length) { - var key = props[index], - value = object[key]; - - if (predicate(value, key)) { - result[key] = value; - } - } - return result; - } - - /** - * A specialized version of `baseProperty` which supports deep paths. - * - * @private - * @param {Array|string} path The path of the property to get. - * @returns {Function} Returns the new accessor function. - */ - function basePropertyDeep(path) { - return function(object) { - return baseGet(object, path); - }; - } - - /** - * The base implementation of `_.pullAllBy` without support for iteratee - * shorthands. - * - * @private - * @param {Array} array The array to modify. - * @param {Array} values The values to remove. - * @param {Function} [iteratee] The iteratee invoked per element. - * @param {Function} [comparator] The comparator invoked per element. - * @returns {Array} Returns `array`. - */ - function basePullAll(array, values, iteratee, comparator) { - var indexOf = comparator ? baseIndexOfWith : baseIndexOf, - index = -1, - length = values.length, - seen = array; - - if (array === values) { - values = copyArray(values); - } - if (iteratee) { - seen = arrayMap(array, baseUnary(iteratee)); - } - while (++index < length) { - var fromIndex = 0, - value = values[index], - computed = iteratee ? iteratee(value) : value; - - while ((fromIndex = indexOf(seen, computed, fromIndex, comparator)) > -1) { - if (seen !== array) { - splice.call(seen, fromIndex, 1); - } - splice.call(array, fromIndex, 1); - } - } - return array; - } - - /** - * The base implementation of `_.pullAt` without support for individual - * indexes or capturing the removed elements. - * - * @private - * @param {Array} array The array to modify. - * @param {number[]} indexes The indexes of elements to remove. - * @returns {Array} Returns `array`. - */ - function basePullAt(array, indexes) { - var length = array ? indexes.length : 0, - lastIndex = length - 1; - - while (length--) { - var index = indexes[length]; - if (length == lastIndex || index !== previous) { - var previous = index; - if (isIndex(index)) { - splice.call(array, index, 1); - } - else if (!isKey(index, array)) { - var path = castPath(index), - object = parent(array, path); - - if (object != null) { - delete object[toKey(last(path))]; - } - } - else { - delete array[toKey(index)]; - } - } - } - return array; - } - - /** - * The base implementation of `_.random` without support for returning - * floating-point numbers. - * - * @private - * @param {number} lower The lower bound. - * @param {number} upper The upper bound. - * @returns {number} Returns the random number. - */ - function baseRandom(lower, upper) { - return lower + nativeFloor(nativeRandom() * (upper - lower + 1)); - } - - /** - * The base implementation of `_.range` and `_.rangeRight` which doesn't - * coerce arguments. - * - * @private - * @param {number} start The start of the range. - * @param {number} end The end of the range. - * @param {number} step The value to increment or decrement by. - * @param {boolean} [fromRight] Specify iterating from right to left. - * @returns {Array} Returns the range of numbers. - */ - function baseRange(start, end, step, fromRight) { - var index = -1, - length = nativeMax(nativeCeil((end - start) / (step || 1)), 0), - result = Array(length); - - while (length--) { - result[fromRight ? length : ++index] = start; - start += step; - } - return result; - } - - /** - * The base implementation of `_.repeat` which doesn't coerce arguments. - * - * @private - * @param {string} string The string to repeat. - * @param {number} n The number of times to repeat the string. - * @returns {string} Returns the repeated string. - */ - function baseRepeat(string, n) { - var result = ''; - if (!string || n < 1 || n > MAX_SAFE_INTEGER) { - return result; - } - // Leverage the exponentiation by squaring algorithm for a faster repeat. - // See https://en.wikipedia.org/wiki/Exponentiation_by_squaring for more details. - do { - if (n % 2) { - result += string; - } - n = nativeFloor(n / 2); - if (n) { - string += string; - } - } while (n); - - return result; - } - - /** - * The base implementation of `_.rest` which doesn't validate or coerce arguments. - * - * @private - * @param {Function} func The function to apply a rest parameter to. - * @param {number} [start=func.length-1] The start position of the rest parameter. - * @returns {Function} Returns the new function. - */ - function baseRest(func, start) { - start = nativeMax(start === undefined ? (func.length - 1) : start, 0); - return function() { - var args = arguments, - index = -1, - length = nativeMax(args.length - start, 0), - array = Array(length); - - while (++index < length) { - array[index] = args[start + index]; - } - index = -1; - var otherArgs = Array(start + 1); - while (++index < start) { - otherArgs[index] = args[index]; - } - otherArgs[start] = array; - return apply(func, this, otherArgs); - }; - } - - /** - * The base implementation of `_.set`. - * - * @private - * @param {Object} object The object to modify. - * @param {Array|string} path The path of the property to set. - * @param {*} value The value to set. - * @param {Function} [customizer] The function to customize path creation. - * @returns {Object} Returns `object`. - */ - function baseSet(object, path, value, customizer) { - if (!isObject(object)) { - return object; - } - path = isKey(path, object) ? [path] : castPath(path); - - var index = -1, - length = path.length, - lastIndex = length - 1, - nested = object; - - while (nested != null && ++index < length) { - var key = toKey(path[index]), - newValue = value; - - if (index != lastIndex) { - var objValue = nested[key]; - newValue = customizer ? customizer(objValue, key, nested) : undefined; - if (newValue === undefined) { - newValue = isObject(objValue) - ? objValue - : (isIndex(path[index + 1]) ? [] : {}); - } - } - assignValue(nested, key, newValue); - nested = nested[key]; - } - return object; - } - - /** - * The base implementation of `setData` without support for hot loop detection. - * - * @private - * @param {Function} func The function to associate metadata with. - * @param {*} data The metadata. - * @returns {Function} Returns `func`. - */ - var baseSetData = !metaMap ? identity : function(func, data) { - metaMap.set(func, data); - return func; - }; - - /** - * The base implementation of `_.slice` without an iteratee call guard. - * - * @private - * @param {Array} array The array to slice. - * @param {number} [start=0] The start position. - * @param {number} [end=array.length] The end position. - * @returns {Array} Returns the slice of `array`. - */ - function baseSlice(array, start, end) { - var index = -1, - length = array.length; - - if (start < 0) { - start = -start > length ? 0 : (length + start); - } - end = end > length ? length : end; - if (end < 0) { - end += length; - } - length = start > end ? 0 : ((end - start) >>> 0); - start >>>= 0; - - var result = Array(length); - while (++index < length) { - result[index] = array[index + start]; - } - return result; - } - - /** - * The base implementation of `_.some` without support for iteratee shorthands. - * - * @private - * @param {Array|Object} collection The collection to iterate over. - * @param {Function} predicate The function invoked per iteration. - * @returns {boolean} Returns `true` if any element passes the predicate check, - * else `false`. - */ - function baseSome(collection, predicate) { - var result; - - baseEach(collection, function(value, index, collection) { - result = predicate(value, index, collection); - return !result; - }); - return !!result; - } - - /** - * The base implementation of `_.sortedIndex` and `_.sortedLastIndex` which - * performs a binary search of `array` to determine the index at which `value` - * should be inserted into `array` in order to maintain its sort order. - * - * @private - * @param {Array} array The sorted array to inspect. - * @param {*} value The value to evaluate. - * @param {boolean} [retHighest] Specify returning the highest qualified index. - * @returns {number} Returns the index at which `value` should be inserted - * into `array`. - */ - function baseSortedIndex(array, value, retHighest) { - var low = 0, - high = array ? array.length : low; - - if (typeof value == 'number' && value === value && high <= HALF_MAX_ARRAY_LENGTH) { - while (low < high) { - var mid = (low + high) >>> 1, - computed = array[mid]; - - if (computed !== null && !isSymbol(computed) && - (retHighest ? (computed <= value) : (computed < value))) { - low = mid + 1; - } else { - high = mid; - } - } - return high; - } - return baseSortedIndexBy(array, value, identity, retHighest); - } - - /** - * The base implementation of `_.sortedIndexBy` and `_.sortedLastIndexBy` - * which invokes `iteratee` for `value` and each element of `array` to compute - * their sort ranking. The iteratee is invoked with one argument; (value). - * - * @private - * @param {Array} array The sorted array to inspect. - * @param {*} value The value to evaluate. - * @param {Function} iteratee The iteratee invoked per element. - * @param {boolean} [retHighest] Specify returning the highest qualified index. - * @returns {number} Returns the index at which `value` should be inserted - * into `array`. - */ - function baseSortedIndexBy(array, value, iteratee, retHighest) { - value = iteratee(value); - - var low = 0, - high = array ? array.length : 0, - valIsNaN = value !== value, - valIsNull = value === null, - valIsSymbol = isSymbol(value), - valIsUndefined = value === undefined; - - while (low < high) { - var mid = nativeFloor((low + high) / 2), - computed = iteratee(array[mid]), - othIsDefined = computed !== undefined, - othIsNull = computed === null, - othIsReflexive = computed === computed, - othIsSymbol = isSymbol(computed); - - if (valIsNaN) { - var setLow = retHighest || othIsReflexive; - } else if (valIsUndefined) { - setLow = othIsReflexive && (retHighest || othIsDefined); - } else if (valIsNull) { - setLow = othIsReflexive && othIsDefined && (retHighest || !othIsNull); - } else if (valIsSymbol) { - setLow = othIsReflexive && othIsDefined && !othIsNull && (retHighest || !othIsSymbol); - } else if (othIsNull || othIsSymbol) { - setLow = false; - } else { - setLow = retHighest ? (computed <= value) : (computed < value); - } - if (setLow) { - low = mid + 1; - } else { - high = mid; - } - } - return nativeMin(high, MAX_ARRAY_INDEX); - } - - /** - * The base implementation of `_.sortedUniq` and `_.sortedUniqBy` without - * support for iteratee shorthands. - * - * @private - * @param {Array} array The array to inspect. - * @param {Function} [iteratee] The iteratee invoked per element. - * @returns {Array} Returns the new duplicate free array. - */ - function baseSortedUniq(array, iteratee) { - var index = -1, - length = array.length, - resIndex = 0, - result = []; - - while (++index < length) { - var value = array[index], - computed = iteratee ? iteratee(value) : value; - - if (!index || !eq(computed, seen)) { - var seen = computed; - result[resIndex++] = value === 0 ? 0 : value; - } - } - return result; - } - - /** - * The base implementation of `_.toNumber` which doesn't ensure correct - * conversions of binary, hexadecimal, or octal string values. - * - * @private - * @param {*} value The value to process. - * @returns {number} Returns the number. - */ - function baseToNumber(value) { - if (typeof value == 'number') { - return value; - } - if (isSymbol(value)) { - return NAN; - } - return +value; - } - - /** - * The base implementation of `_.toString` which doesn't convert nullish - * values to empty strings. - * - * @private - * @param {*} value The value to process. - * @returns {string} Returns the string. - */ - function baseToString(value) { - // Exit early for strings to avoid a performance hit in some environments. - if (typeof value == 'string') { - return value; - } - if (isSymbol(value)) { - return symbolToString ? symbolToString.call(value) : ''; - } - var result = (value + ''); - return (result == '0' && (1 / value) == -INFINITY) ? '-0' : result; - } - - /** - * The base implementation of `_.uniqBy` without support for iteratee shorthands. - * - * @private - * @param {Array} array The array to inspect. - * @param {Function} [iteratee] The iteratee invoked per element. - * @param {Function} [comparator] The comparator invoked per element. - * @returns {Array} Returns the new duplicate free array. - */ - function baseUniq(array, iteratee, comparator) { - var index = -1, - includes = arrayIncludes, - length = array.length, - isCommon = true, - result = [], - seen = result; - - if (comparator) { - isCommon = false; - includes = arrayIncludesWith; - } - else if (length >= LARGE_ARRAY_SIZE) { - var set = iteratee ? null : createSet(array); - if (set) { - return setToArray(set); - } - isCommon = false; - includes = cacheHas; - seen = new SetCache; - } - else { - seen = iteratee ? [] : result; - } - outer: - while (++index < length) { - var value = array[index], - computed = iteratee ? iteratee(value) : value; - - value = (comparator || value !== 0) ? value : 0; - if (isCommon && computed === computed) { - var seenIndex = seen.length; - while (seenIndex--) { - if (seen[seenIndex] === computed) { - continue outer; - } - } - if (iteratee) { - seen.push(computed); - } - result.push(value); - } - else if (!includes(seen, computed, comparator)) { - if (seen !== result) { - seen.push(computed); - } - result.push(value); - } - } - return result; - } - - /** - * The base implementation of `_.unset`. - * - * @private - * @param {Object} object The object to modify. - * @param {Array|string} path The path of the property to unset. - * @returns {boolean} Returns `true` if the property is deleted, else `false`. - */ - function baseUnset(object, path) { - path = isKey(path, object) ? [path] : castPath(path); - object = parent(object, path); - - var key = toKey(last(path)); - return !(object != null && hasOwnProperty.call(object, key)) || delete object[key]; - } - - /** - * The base implementation of `_.update`. - * - * @private - * @param {Object} object The object to modify. - * @param {Array|string} path The path of the property to update. - * @param {Function} updater The function to produce the updated value. - * @param {Function} [customizer] The function to customize path creation. - * @returns {Object} Returns `object`. - */ - function baseUpdate(object, path, updater, customizer) { - return baseSet(object, path, updater(baseGet(object, path)), customizer); - } - - /** - * The base implementation of methods like `_.dropWhile` and `_.takeWhile` - * without support for iteratee shorthands. - * - * @private - * @param {Array} array The array to query. - * @param {Function} predicate The function invoked per iteration. - * @param {boolean} [isDrop] Specify dropping elements instead of taking them. - * @param {boolean} [fromRight] Specify iterating from right to left. - * @returns {Array} Returns the slice of `array`. - */ - function baseWhile(array, predicate, isDrop, fromRight) { - var length = array.length, - index = fromRight ? length : -1; - - while ((fromRight ? index-- : ++index < length) && - predicate(array[index], index, array)) {} - - return isDrop - ? baseSlice(array, (fromRight ? 0 : index), (fromRight ? index + 1 : length)) - : baseSlice(array, (fromRight ? index + 1 : 0), (fromRight ? length : index)); - } - - /** - * The base implementation of `wrapperValue` which returns the result of - * performing a sequence of actions on the unwrapped `value`, where each - * successive action is supplied the return value of the previous. - * - * @private - * @param {*} value The unwrapped value. - * @param {Array} actions Actions to perform to resolve the unwrapped value. - * @returns {*} Returns the resolved value. - */ - function baseWrapperValue(value, actions) { - var result = value; - if (result instanceof LazyWrapper) { - result = result.value(); - } - return arrayReduce(actions, function(result, action) { - return action.func.apply(action.thisArg, arrayPush([result], action.args)); - }, result); - } - - /** - * The base implementation of methods like `_.xor`, without support for - * iteratee shorthands, that accepts an array of arrays to inspect. - * - * @private - * @param {Array} arrays The arrays to inspect. - * @param {Function} [iteratee] The iteratee invoked per element. - * @param {Function} [comparator] The comparator invoked per element. - * @returns {Array} Returns the new array of values. - */ - function baseXor(arrays, iteratee, comparator) { - var index = -1, - length = arrays.length; - - while (++index < length) { - var result = result - ? arrayPush( - baseDifference(result, arrays[index], iteratee, comparator), - baseDifference(arrays[index], result, iteratee, comparator) - ) - : arrays[index]; - } - return (result && result.length) ? baseUniq(result, iteratee, comparator) : []; - } - - /** - * This base implementation of `_.zipObject` which assigns values using `assignFunc`. - * - * @private - * @param {Array} props The property identifiers. - * @param {Array} values The property values. - * @param {Function} assignFunc The function to assign values. - * @returns {Object} Returns the new object. - */ - function baseZipObject(props, values, assignFunc) { - var index = -1, - length = props.length, - valsLength = values.length, - result = {}; - - while (++index < length) { - var value = index < valsLength ? values[index] : undefined; - assignFunc(result, props[index], value); - } - return result; - } - - /** - * Casts `value` to an empty array if it's not an array like object. - * - * @private - * @param {*} value The value to inspect. - * @returns {Array|Object} Returns the cast array-like object. - */ - function castArrayLikeObject(value) { - return isArrayLikeObject(value) ? value : []; - } - - /** - * Casts `value` to `identity` if it's not a function. - * - * @private - * @param {*} value The value to inspect. - * @returns {Function} Returns cast function. - */ - function castFunction(value) { - return typeof value == 'function' ? value : identity; - } - - /** - * Casts `value` to a path array if it's not one. - * - * @private - * @param {*} value The value to inspect. - * @returns {Array} Returns the cast property path array. - */ - function castPath(value) { - return isArray(value) ? value : stringToPath(value); - } - - /** - * Casts `array` to a slice if it's needed. - * - * @private - * @param {Array} array The array to inspect. - * @param {number} start The start position. - * @param {number} [end=array.length] The end position. - * @returns {Array} Returns the cast slice. - */ - function castSlice(array, start, end) { - var length = array.length; - end = end === undefined ? length : end; - return (!start && end >= length) ? array : baseSlice(array, start, end); - } - - /** - * A simple wrapper around the global [`clearTimeout`](https://mdn.io/clearTimeout). - * - * @private - * @param {number|Object} id The timer id or timeout object of the timer to clear. - */ - var clearTimeout = ctxClearTimeout || function(id) { - return root.clearTimeout(id); - }; - - /** - * Creates a clone of `buffer`. - * - * @private - * @param {Buffer} buffer The buffer to clone. - * @param {boolean} [isDeep] Specify a deep clone. - * @returns {Buffer} Returns the cloned buffer. - */ - function cloneBuffer(buffer, isDeep) { - if (isDeep) { - return buffer.slice(); - } - var result = new buffer.constructor(buffer.length); - buffer.copy(result); - return result; - } - - /** - * Creates a clone of `arrayBuffer`. - * - * @private - * @param {ArrayBuffer} arrayBuffer The array buffer to clone. - * @returns {ArrayBuffer} Returns the cloned array buffer. - */ - function cloneArrayBuffer(arrayBuffer) { - var result = new arrayBuffer.constructor(arrayBuffer.byteLength); - new Uint8Array(result).set(new Uint8Array(arrayBuffer)); - return result; - } - - /** - * Creates a clone of `dataView`. - * - * @private - * @param {Object} dataView The data view to clone. - * @param {boolean} [isDeep] Specify a deep clone. - * @returns {Object} Returns the cloned data view. - */ - function cloneDataView(dataView, isDeep) { - var buffer = isDeep ? cloneArrayBuffer(dataView.buffer) : dataView.buffer; - return new dataView.constructor(buffer, dataView.byteOffset, dataView.byteLength); - } - - /** - * Creates a clone of `map`. - * - * @private - * @param {Object} map The map to clone. - * @param {Function} cloneFunc The function to clone values. - * @param {boolean} [isDeep] Specify a deep clone. - * @returns {Object} Returns the cloned map. - */ - function cloneMap(map, isDeep, cloneFunc) { - var array = isDeep ? cloneFunc(mapToArray(map), true) : mapToArray(map); - return arrayReduce(array, addMapEntry, new map.constructor); - } - - /** - * Creates a clone of `regexp`. - * - * @private - * @param {Object} regexp The regexp to clone. - * @returns {Object} Returns the cloned regexp. - */ - function cloneRegExp(regexp) { - var result = new regexp.constructor(regexp.source, reFlags.exec(regexp)); - result.lastIndex = regexp.lastIndex; - return result; - } - - /** - * Creates a clone of `set`. - * - * @private - * @param {Object} set The set to clone. - * @param {Function} cloneFunc The function to clone values. - * @param {boolean} [isDeep] Specify a deep clone. - * @returns {Object} Returns the cloned set. - */ - function cloneSet(set, isDeep, cloneFunc) { - var array = isDeep ? cloneFunc(setToArray(set), true) : setToArray(set); - return arrayReduce(array, addSetEntry, new set.constructor); - } - - /** - * Creates a clone of the `symbol` object. - * - * @private - * @param {Object} symbol The symbol object to clone. - * @returns {Object} Returns the cloned symbol object. - */ - function cloneSymbol(symbol) { - return symbolValueOf ? Object(symbolValueOf.call(symbol)) : {}; - } - - /** - * Creates a clone of `typedArray`. - * - * @private - * @param {Object} typedArray The typed array to clone. - * @param {boolean} [isDeep] Specify a deep clone. - * @returns {Object} Returns the cloned typed array. - */ - function cloneTypedArray(typedArray, isDeep) { - var buffer = isDeep ? cloneArrayBuffer(typedArray.buffer) : typedArray.buffer; - return new typedArray.constructor(buffer, typedArray.byteOffset, typedArray.length); - } - - /** - * Compares values to sort them in ascending order. - * - * @private - * @param {*} value The value to compare. - * @param {*} other The other value to compare. - * @returns {number} Returns the sort order indicator for `value`. - */ - function compareAscending(value, other) { - if (value !== other) { - var valIsDefined = value !== undefined, - valIsNull = value === null, - valIsReflexive = value === value, - valIsSymbol = isSymbol(value); - - var othIsDefined = other !== undefined, - othIsNull = other === null, - othIsReflexive = other === other, - othIsSymbol = isSymbol(other); - - if ((!othIsNull && !othIsSymbol && !valIsSymbol && value > other) || - (valIsSymbol && othIsDefined && othIsReflexive && !othIsNull && !othIsSymbol) || - (valIsNull && othIsDefined && othIsReflexive) || - (!valIsDefined && othIsReflexive) || - !valIsReflexive) { - return 1; - } - if ((!valIsNull && !valIsSymbol && !othIsSymbol && value < other) || - (othIsSymbol && valIsDefined && valIsReflexive && !valIsNull && !valIsSymbol) || - (othIsNull && valIsDefined && valIsReflexive) || - (!othIsDefined && valIsReflexive) || - !othIsReflexive) { - return -1; - } - } - return 0; - } - - /** - * Used by `_.orderBy` to compare multiple properties of a value to another - * and stable sort them. - * - * If `orders` is unspecified, all values are sorted in ascending order. Otherwise, - * specify an order of "desc" for descending or "asc" for ascending sort order - * of corresponding values. - * - * @private - * @param {Object} object The object to compare. - * @param {Object} other The other object to compare. - * @param {boolean[]|string[]} orders The order to sort by for each property. - * @returns {number} Returns the sort order indicator for `object`. - */ - function compareMultiple(object, other, orders) { - var index = -1, - objCriteria = object.criteria, - othCriteria = other.criteria, - length = objCriteria.length, - ordersLength = orders.length; - - while (++index < length) { - var result = compareAscending(objCriteria[index], othCriteria[index]); - if (result) { - if (index >= ordersLength) { - return result; - } - var order = orders[index]; - return result * (order == 'desc' ? -1 : 1); - } - } - // Fixes an `Array#sort` bug in the JS engine embedded in Adobe applications - // that causes it, under certain circumstances, to provide the same value for - // `object` and `other`. See https://github.com/jashkenas/underscore/pull/1247 - // for more details. - // - // This also ensures a stable sort in V8 and other engines. - // See https://bugs.chromium.org/p/v8/issues/detail?id=90 for more details. - return object.index - other.index; - } - - /** - * Creates an array that is the composition of partially applied arguments, - * placeholders, and provided arguments into a single array of arguments. - * - * @private - * @param {Array} args The provided arguments. - * @param {Array} partials The arguments to prepend to those provided. - * @param {Array} holders The `partials` placeholder indexes. - * @params {boolean} [isCurried] Specify composing for a curried function. - * @returns {Array} Returns the new array of composed arguments. - */ - function composeArgs(args, partials, holders, isCurried) { - var argsIndex = -1, - argsLength = args.length, - holdersLength = holders.length, - leftIndex = -1, - leftLength = partials.length, - rangeLength = nativeMax(argsLength - holdersLength, 0), - result = Array(leftLength + rangeLength), - isUncurried = !isCurried; - - while (++leftIndex < leftLength) { - result[leftIndex] = partials[leftIndex]; - } - while (++argsIndex < holdersLength) { - if (isUncurried || argsIndex < argsLength) { - result[holders[argsIndex]] = args[argsIndex]; - } - } - while (rangeLength--) { - result[leftIndex++] = args[argsIndex++]; - } - return result; - } - - /** - * This function is like `composeArgs` except that the arguments composition - * is tailored for `_.partialRight`. - * - * @private - * @param {Array} args The provided arguments. - * @param {Array} partials The arguments to append to those provided. - * @param {Array} holders The `partials` placeholder indexes. - * @params {boolean} [isCurried] Specify composing for a curried function. - * @returns {Array} Returns the new array of composed arguments. - */ - function composeArgsRight(args, partials, holders, isCurried) { - var argsIndex = -1, - argsLength = args.length, - holdersIndex = -1, - holdersLength = holders.length, - rightIndex = -1, - rightLength = partials.length, - rangeLength = nativeMax(argsLength - holdersLength, 0), - result = Array(rangeLength + rightLength), - isUncurried = !isCurried; - - while (++argsIndex < rangeLength) { - result[argsIndex] = args[argsIndex]; - } - var offset = argsIndex; - while (++rightIndex < rightLength) { - result[offset + rightIndex] = partials[rightIndex]; - } - while (++holdersIndex < holdersLength) { - if (isUncurried || argsIndex < argsLength) { - result[offset + holders[holdersIndex]] = args[argsIndex++]; - } - } - return result; - } - - /** - * Copies the values of `source` to `array`. - * - * @private - * @param {Array} source The array to copy values from. - * @param {Array} [array=[]] The array to copy values to. - * @returns {Array} Returns `array`. - */ - function copyArray(source, array) { - var index = -1, - length = source.length; - - array || (array = Array(length)); - while (++index < length) { - array[index] = source[index]; - } - return array; - } - - /** - * Copies properties of `source` to `object`. - * - * @private - * @param {Object} source The object to copy properties from. - * @param {Array} props The property identifiers to copy. - * @param {Object} [object={}] The object to copy properties to. - * @param {Function} [customizer] The function to customize copied values. - * @returns {Object} Returns `object`. - */ - function copyObject(source, props, object, customizer) { - object || (object = {}); - - var index = -1, - length = props.length; - - while (++index < length) { - var key = props[index]; - - var newValue = customizer - ? customizer(object[key], source[key], key, object, source) - : undefined; - - assignValue(object, key, newValue === undefined ? source[key] : newValue); - } - return object; - } - - /** - * Copies own symbol properties of `source` to `object`. - * - * @private - * @param {Object} source The object to copy symbols from. - * @param {Object} [object={}] The object to copy symbols to. - * @returns {Object} Returns `object`. - */ - function copySymbols(source, object) { - return copyObject(source, getSymbols(source), object); - } - - /** - * Creates a function like `_.groupBy`. - * - * @private - * @param {Function} setter The function to set accumulator values. - * @param {Function} [initializer] The accumulator object initializer. - * @returns {Function} Returns the new aggregator function. - */ - function createAggregator(setter, initializer) { - return function(collection, iteratee) { - var func = isArray(collection) ? arrayAggregator : baseAggregator, - accumulator = initializer ? initializer() : {}; - - return func(collection, setter, getIteratee(iteratee, 2), accumulator); - }; - } - - /** - * Creates a function like `_.assign`. - * - * @private - * @param {Function} assigner The function to assign values. - * @returns {Function} Returns the new assigner function. - */ - function createAssigner(assigner) { - return baseRest(function(object, sources) { - var index = -1, - length = sources.length, - customizer = length > 1 ? sources[length - 1] : undefined, - guard = length > 2 ? sources[2] : undefined; - - customizer = (assigner.length > 3 && typeof customizer == 'function') - ? (length--, customizer) - : undefined; - - if (guard && isIterateeCall(sources[0], sources[1], guard)) { - customizer = length < 3 ? undefined : customizer; - length = 1; - } - object = Object(object); - while (++index < length) { - var source = sources[index]; - if (source) { - assigner(object, source, index, customizer); - } - } - return object; - }); - } - - /** - * Creates a `baseEach` or `baseEachRight` function. - * - * @private - * @param {Function} eachFunc The function to iterate over a collection. - * @param {boolean} [fromRight] Specify iterating from right to left. - * @returns {Function} Returns the new base function. - */ - function createBaseEach(eachFunc, fromRight) { - return function(collection, iteratee) { - if (collection == null) { - return collection; - } - if (!isArrayLike(collection)) { - return eachFunc(collection, iteratee); - } - var length = collection.length, - index = fromRight ? length : -1, - iterable = Object(collection); - - while ((fromRight ? index-- : ++index < length)) { - if (iteratee(iterable[index], index, iterable) === false) { - break; - } - } - return collection; - }; - } - - /** - * Creates a base function for methods like `_.forIn` and `_.forOwn`. - * - * @private - * @param {boolean} [fromRight] Specify iterating from right to left. - * @returns {Function} Returns the new base function. - */ - function createBaseFor(fromRight) { - return function(object, iteratee, keysFunc) { - var index = -1, - iterable = Object(object), - props = keysFunc(object), - length = props.length; - - while (length--) { - var key = props[fromRight ? length : ++index]; - if (iteratee(iterable[key], key, iterable) === false) { - break; - } - } - return object; - }; - } - - /** - * Creates a function that wraps `func` to invoke it with the optional `this` - * binding of `thisArg`. - * - * @private - * @param {Function} func The function to wrap. - * @param {number} bitmask The bitmask flags. See `createWrap` for more details. - * @param {*} [thisArg] The `this` binding of `func`. - * @returns {Function} Returns the new wrapped function. - */ - function createBind(func, bitmask, thisArg) { - var isBind = bitmask & BIND_FLAG, - Ctor = createCtor(func); - - function wrapper() { - var fn = (this && this !== root && this instanceof wrapper) ? Ctor : func; - return fn.apply(isBind ? thisArg : this, arguments); - } - return wrapper; - } - - /** - * Creates a function like `_.lowerFirst`. - * - * @private - * @param {string} methodName The name of the `String` case method to use. - * @returns {Function} Returns the new case function. - */ - function createCaseFirst(methodName) { - return function(string) { - string = toString(string); - - var strSymbols = hasUnicode(string) - ? stringToArray(string) - : undefined; - - var chr = strSymbols - ? strSymbols[0] - : string.charAt(0); - - var trailing = strSymbols - ? castSlice(strSymbols, 1).join('') - : string.slice(1); - - return chr[methodName]() + trailing; - }; - } - - /** - * Creates a function like `_.camelCase`. - * - * @private - * @param {Function} callback The function to combine each word. - * @returns {Function} Returns the new compounder function. - */ - function createCompounder(callback) { - return function(string) { - return arrayReduce(words(deburr(string).replace(reApos, '')), callback, ''); - }; - } - - /** - * Creates a function that produces an instance of `Ctor` regardless of - * whether it was invoked as part of a `new` expression or by `call` or `apply`. - * - * @private - * @param {Function} Ctor The constructor to wrap. - * @returns {Function} Returns the new wrapped function. - */ - function createCtor(Ctor) { - return function() { - // Use a `switch` statement to work with class constructors. See - // http://ecma-international.org/ecma-262/7.0/#sec-ecmascript-function-objects-call-thisargument-argumentslist - // for more details. - var args = arguments; - switch (args.length) { - case 0: return new Ctor; - case 1: return new Ctor(args[0]); - case 2: return new Ctor(args[0], args[1]); - case 3: return new Ctor(args[0], args[1], args[2]); - case 4: return new Ctor(args[0], args[1], args[2], args[3]); - case 5: return new Ctor(args[0], args[1], args[2], args[3], args[4]); - case 6: return new Ctor(args[0], args[1], args[2], args[3], args[4], args[5]); - case 7: return new Ctor(args[0], args[1], args[2], args[3], args[4], args[5], args[6]); - } - var thisBinding = baseCreate(Ctor.prototype), - result = Ctor.apply(thisBinding, args); - - // Mimic the constructor's `return` behavior. - // See https://es5.github.io/#x13.2.2 for more details. - return isObject(result) ? result : thisBinding; - }; - } - - /** - * Creates a function that wraps `func` to enable currying. - * - * @private - * @param {Function} func The function to wrap. - * @param {number} bitmask The bitmask flags. See `createWrap` for more details. - * @param {number} arity The arity of `func`. - * @returns {Function} Returns the new wrapped function. - */ - function createCurry(func, bitmask, arity) { - var Ctor = createCtor(func); - - function wrapper() { - var length = arguments.length, - args = Array(length), - index = length, - placeholder = getHolder(wrapper); - - while (index--) { - args[index] = arguments[index]; - } - var holders = (length < 3 && args[0] !== placeholder && args[length - 1] !== placeholder) - ? [] - : replaceHolders(args, placeholder); - - length -= holders.length; - if (length < arity) { - return createRecurry( - func, bitmask, createHybrid, wrapper.placeholder, undefined, - args, holders, undefined, undefined, arity - length); - } - var fn = (this && this !== root && this instanceof wrapper) ? Ctor : func; - return apply(fn, this, args); - } - return wrapper; - } - - /** - * Creates a `_.find` or `_.findLast` function. - * - * @private - * @param {Function} findIndexFunc The function to find the collection index. - * @returns {Function} Returns the new find function. - */ - function createFind(findIndexFunc) { - return function(collection, predicate, fromIndex) { - var iterable = Object(collection); - if (!isArrayLike(collection)) { - var iteratee = getIteratee(predicate, 3); - collection = keys(collection); - predicate = function(key) { return iteratee(iterable[key], key, iterable); }; - } - var index = findIndexFunc(collection, predicate, fromIndex); - return index > -1 ? iterable[iteratee ? collection[index] : index] : undefined; - }; - } - - /** - * Creates a `_.flow` or `_.flowRight` function. - * - * @private - * @param {boolean} [fromRight] Specify iterating from right to left. - * @returns {Function} Returns the new flow function. - */ - function createFlow(fromRight) { - return baseRest(function(funcs) { - funcs = baseFlatten(funcs, 1); - - var length = funcs.length, - index = length, - prereq = LodashWrapper.prototype.thru; - - if (fromRight) { - funcs.reverse(); - } - while (index--) { - var func = funcs[index]; - if (typeof func != 'function') { - throw new TypeError(FUNC_ERROR_TEXT); - } - if (prereq && !wrapper && getFuncName(func) == 'wrapper') { - var wrapper = new LodashWrapper([], true); - } - } - index = wrapper ? index : length; - while (++index < length) { - func = funcs[index]; - - var funcName = getFuncName(func), - data = funcName == 'wrapper' ? getData(func) : undefined; - - if (data && isLaziable(data[0]) && - data[1] == (ARY_FLAG | CURRY_FLAG | PARTIAL_FLAG | REARG_FLAG) && - !data[4].length && data[9] == 1 - ) { - wrapper = wrapper[getFuncName(data[0])].apply(wrapper, data[3]); - } else { - wrapper = (func.length == 1 && isLaziable(func)) - ? wrapper[funcName]() - : wrapper.thru(func); - } - } - return function() { - var args = arguments, - value = args[0]; - - if (wrapper && args.length == 1 && - isArray(value) && value.length >= LARGE_ARRAY_SIZE) { - return wrapper.plant(value).value(); - } - var index = 0, - result = length ? funcs[index].apply(this, args) : value; - - while (++index < length) { - result = funcs[index].call(this, result); - } - return result; - }; - }); - } - - /** - * Creates a function that wraps `func` to invoke it with optional `this` - * binding of `thisArg`, partial application, and currying. - * - * @private - * @param {Function|string} func The function or method name to wrap. - * @param {number} bitmask The bitmask flags. See `createWrap` for more details. - * @param {*} [thisArg] The `this` binding of `func`. - * @param {Array} [partials] The arguments to prepend to those provided to - * the new function. - * @param {Array} [holders] The `partials` placeholder indexes. - * @param {Array} [partialsRight] The arguments to append to those provided - * to the new function. - * @param {Array} [holdersRight] The `partialsRight` placeholder indexes. - * @param {Array} [argPos] The argument positions of the new function. - * @param {number} [ary] The arity cap of `func`. - * @param {number} [arity] The arity of `func`. - * @returns {Function} Returns the new wrapped function. - */ - function createHybrid(func, bitmask, thisArg, partials, holders, partialsRight, holdersRight, argPos, ary, arity) { - var isAry = bitmask & ARY_FLAG, - isBind = bitmask & BIND_FLAG, - isBindKey = bitmask & BIND_KEY_FLAG, - isCurried = bitmask & (CURRY_FLAG | CURRY_RIGHT_FLAG), - isFlip = bitmask & FLIP_FLAG, - Ctor = isBindKey ? undefined : createCtor(func); - - function wrapper() { - var length = arguments.length, - args = Array(length), - index = length; - - while (index--) { - args[index] = arguments[index]; - } - if (isCurried) { - var placeholder = getHolder(wrapper), - holdersCount = countHolders(args, placeholder); - } - if (partials) { - args = composeArgs(args, partials, holders, isCurried); - } - if (partialsRight) { - args = composeArgsRight(args, partialsRight, holdersRight, isCurried); - } - length -= holdersCount; - if (isCurried && length < arity) { - var newHolders = replaceHolders(args, placeholder); - return createRecurry( - func, bitmask, createHybrid, wrapper.placeholder, thisArg, - args, newHolders, argPos, ary, arity - length - ); - } - var thisBinding = isBind ? thisArg : this, - fn = isBindKey ? thisBinding[func] : func; - - length = args.length; - if (argPos) { - args = reorder(args, argPos); - } else if (isFlip && length > 1) { - args.reverse(); - } - if (isAry && ary < length) { - args.length = ary; - } - if (this && this !== root && this instanceof wrapper) { - fn = Ctor || createCtor(fn); - } - return fn.apply(thisBinding, args); - } - return wrapper; - } - - /** - * Creates a function like `_.invertBy`. - * - * @private - * @param {Function} setter The function to set accumulator values. - * @param {Function} toIteratee The function to resolve iteratees. - * @returns {Function} Returns the new inverter function. - */ - function createInverter(setter, toIteratee) { - return function(object, iteratee) { - return baseInverter(object, setter, toIteratee(iteratee), {}); - }; - } - - /** - * Creates a function that performs a mathematical operation on two values. - * - * @private - * @param {Function} operator The function to perform the operation. - * @param {number} [defaultValue] The value used for `undefined` arguments. - * @returns {Function} Returns the new mathematical operation function. - */ - function createMathOperation(operator, defaultValue) { - return function(value, other) { - var result; - if (value === undefined && other === undefined) { - return defaultValue; - } - if (value !== undefined) { - result = value; - } - if (other !== undefined) { - if (result === undefined) { - return other; - } - if (typeof value == 'string' || typeof other == 'string') { - value = baseToString(value); - other = baseToString(other); - } else { - value = baseToNumber(value); - other = baseToNumber(other); - } - result = operator(value, other); - } - return result; - }; - } - - /** - * Creates a function like `_.over`. - * - * @private - * @param {Function} arrayFunc The function to iterate over iteratees. - * @returns {Function} Returns the new over function. - */ - function createOver(arrayFunc) { - return baseRest(function(iteratees) { - iteratees = (iteratees.length == 1 && isArray(iteratees[0])) - ? arrayMap(iteratees[0], baseUnary(getIteratee())) - : arrayMap(baseFlatten(iteratees, 1), baseUnary(getIteratee())); - - return baseRest(function(args) { - var thisArg = this; - return arrayFunc(iteratees, function(iteratee) { - return apply(iteratee, thisArg, args); - }); - }); - }); - } - - /** - * Creates the padding for `string` based on `length`. The `chars` string - * is truncated if the number of characters exceeds `length`. - * - * @private - * @param {number} length The padding length. - * @param {string} [chars=' '] The string used as padding. - * @returns {string} Returns the padding for `string`. - */ - function createPadding(length, chars) { - chars = chars === undefined ? ' ' : baseToString(chars); - - var charsLength = chars.length; - if (charsLength < 2) { - return charsLength ? baseRepeat(chars, length) : chars; - } - var result = baseRepeat(chars, nativeCeil(length / stringSize(chars))); - return hasUnicode(chars) - ? castSlice(stringToArray(result), 0, length).join('') - : result.slice(0, length); - } - - /** - * Creates a function that wraps `func` to invoke it with the `this` binding - * of `thisArg` and `partials` prepended to the arguments it receives. - * - * @private - * @param {Function} func The function to wrap. - * @param {number} bitmask The bitmask flags. See `createWrap` for more details. - * @param {*} thisArg The `this` binding of `func`. - * @param {Array} partials The arguments to prepend to those provided to - * the new function. - * @returns {Function} Returns the new wrapped function. - */ - function createPartial(func, bitmask, thisArg, partials) { - var isBind = bitmask & BIND_FLAG, - Ctor = createCtor(func); - - function wrapper() { - var argsIndex = -1, - argsLength = arguments.length, - leftIndex = -1, - leftLength = partials.length, - args = Array(leftLength + argsLength), - fn = (this && this !== root && this instanceof wrapper) ? Ctor : func; - - while (++leftIndex < leftLength) { - args[leftIndex] = partials[leftIndex]; - } - while (argsLength--) { - args[leftIndex++] = arguments[++argsIndex]; - } - return apply(fn, isBind ? thisArg : this, args); - } - return wrapper; - } - - /** - * Creates a `_.range` or `_.rangeRight` function. - * - * @private - * @param {boolean} [fromRight] Specify iterating from right to left. - * @returns {Function} Returns the new range function. - */ - function createRange(fromRight) { - return function(start, end, step) { - if (step && typeof step != 'number' && isIterateeCall(start, end, step)) { - end = step = undefined; - } - // Ensure the sign of `-0` is preserved. - start = toFinite(start); - if (end === undefined) { - end = start; - start = 0; - } else { - end = toFinite(end); - } - step = step === undefined ? (start < end ? 1 : -1) : toFinite(step); - return baseRange(start, end, step, fromRight); - }; - } - - /** - * Creates a function that performs a relational operation on two values. - * - * @private - * @param {Function} operator The function to perform the operation. - * @returns {Function} Returns the new relational operation function. - */ - function createRelationalOperation(operator) { - return function(value, other) { - if (!(typeof value == 'string' && typeof other == 'string')) { - value = toNumber(value); - other = toNumber(other); - } - return operator(value, other); - }; - } - - /** - * Creates a function that wraps `func` to continue currying. - * - * @private - * @param {Function} func The function to wrap. - * @param {number} bitmask The bitmask flags. See `createWrap` for more details. - * @param {Function} wrapFunc The function to create the `func` wrapper. - * @param {*} placeholder The placeholder value. - * @param {*} [thisArg] The `this` binding of `func`. - * @param {Array} [partials] The arguments to prepend to those provided to - * the new function. - * @param {Array} [holders] The `partials` placeholder indexes. - * @param {Array} [argPos] The argument positions of the new function. - * @param {number} [ary] The arity cap of `func`. - * @param {number} [arity] The arity of `func`. - * @returns {Function} Returns the new wrapped function. - */ - function createRecurry(func, bitmask, wrapFunc, placeholder, thisArg, partials, holders, argPos, ary, arity) { - var isCurry = bitmask & CURRY_FLAG, - newHolders = isCurry ? holders : undefined, - newHoldersRight = isCurry ? undefined : holders, - newPartials = isCurry ? partials : undefined, - newPartialsRight = isCurry ? undefined : partials; - - bitmask |= (isCurry ? PARTIAL_FLAG : PARTIAL_RIGHT_FLAG); - bitmask &= ~(isCurry ? PARTIAL_RIGHT_FLAG : PARTIAL_FLAG); - - if (!(bitmask & CURRY_BOUND_FLAG)) { - bitmask &= ~(BIND_FLAG | BIND_KEY_FLAG); - } - var newData = [ - func, bitmask, thisArg, newPartials, newHolders, newPartialsRight, - newHoldersRight, argPos, ary, arity - ]; - - var result = wrapFunc.apply(undefined, newData); - if (isLaziable(func)) { - setData(result, newData); - } - result.placeholder = placeholder; - return setWrapToString(result, func, bitmask); - } - - /** - * Creates a function like `_.round`. - * - * @private - * @param {string} methodName The name of the `Math` method to use when rounding. - * @returns {Function} Returns the new round function. - */ - function createRound(methodName) { - var func = Math[methodName]; - return function(number, precision) { - number = toNumber(number); - precision = nativeMin(toInteger(precision), 292); - if (precision) { - // Shift with exponential notation to avoid floating-point issues. - // See [MDN](https://mdn.io/round#Examples) for more details. - var pair = (toString(number) + 'e').split('e'), - value = func(pair[0] + 'e' + (+pair[1] + precision)); - - pair = (toString(value) + 'e').split('e'); - return +(pair[0] + 'e' + (+pair[1] - precision)); - } - return func(number); - }; - } - - /** - * Creates a set object of `values`. - * - * @private - * @param {Array} values The values to add to the set. - * @returns {Object} Returns the new set. - */ - var createSet = !(Set && (1 / setToArray(new Set([,-0]))[1]) == INFINITY) ? noop : function(values) { - return new Set(values); - }; - - /** - * Creates a `_.toPairs` or `_.toPairsIn` function. - * - * @private - * @param {Function} keysFunc The function to get the keys of a given object. - * @returns {Function} Returns the new pairs function. - */ - function createToPairs(keysFunc) { - return function(object) { - var tag = getTag(object); - if (tag == mapTag) { - return mapToArray(object); - } - if (tag == setTag) { - return setToPairs(object); - } - return baseToPairs(object, keysFunc(object)); - }; - } - - /** - * Creates a function that either curries or invokes `func` with optional - * `this` binding and partially applied arguments. - * - * @private - * @param {Function|string} func The function or method name to wrap. - * @param {number} bitmask The bitmask flags. - * The bitmask may be composed of the following flags: - * 1 - `_.bind` - * 2 - `_.bindKey` - * 4 - `_.curry` or `_.curryRight` of a bound function - * 8 - `_.curry` - * 16 - `_.curryRight` - * 32 - `_.partial` - * 64 - `_.partialRight` - * 128 - `_.rearg` - * 256 - `_.ary` - * 512 - `_.flip` - * @param {*} [thisArg] The `this` binding of `func`. - * @param {Array} [partials] The arguments to be partially applied. - * @param {Array} [holders] The `partials` placeholder indexes. - * @param {Array} [argPos] The argument positions of the new function. - * @param {number} [ary] The arity cap of `func`. - * @param {number} [arity] The arity of `func`. - * @returns {Function} Returns the new wrapped function. - */ - function createWrap(func, bitmask, thisArg, partials, holders, argPos, ary, arity) { - var isBindKey = bitmask & BIND_KEY_FLAG; - if (!isBindKey && typeof func != 'function') { - throw new TypeError(FUNC_ERROR_TEXT); - } - var length = partials ? partials.length : 0; - if (!length) { - bitmask &= ~(PARTIAL_FLAG | PARTIAL_RIGHT_FLAG); - partials = holders = undefined; - } - ary = ary === undefined ? ary : nativeMax(toInteger(ary), 0); - arity = arity === undefined ? arity : toInteger(arity); - length -= holders ? holders.length : 0; - - if (bitmask & PARTIAL_RIGHT_FLAG) { - var partialsRight = partials, - holdersRight = holders; - - partials = holders = undefined; - } - var data = isBindKey ? undefined : getData(func); - - var newData = [ - func, bitmask, thisArg, partials, holders, partialsRight, holdersRight, - argPos, ary, arity - ]; - - if (data) { - mergeData(newData, data); - } - func = newData[0]; - bitmask = newData[1]; - thisArg = newData[2]; - partials = newData[3]; - holders = newData[4]; - arity = newData[9] = newData[9] == null - ? (isBindKey ? 0 : func.length) - : nativeMax(newData[9] - length, 0); - - if (!arity && bitmask & (CURRY_FLAG | CURRY_RIGHT_FLAG)) { - bitmask &= ~(CURRY_FLAG | CURRY_RIGHT_FLAG); - } - if (!bitmask || bitmask == BIND_FLAG) { - var result = createBind(func, bitmask, thisArg); - } else if (bitmask == CURRY_FLAG || bitmask == CURRY_RIGHT_FLAG) { - result = createCurry(func, bitmask, arity); - } else if ((bitmask == PARTIAL_FLAG || bitmask == (BIND_FLAG | PARTIAL_FLAG)) && !holders.length) { - result = createPartial(func, bitmask, thisArg, partials); - } else { - result = createHybrid.apply(undefined, newData); - } - var setter = data ? baseSetData : setData; - return setWrapToString(setter(result, newData), func, bitmask); - } - - /** - * A specialized version of `baseIsEqualDeep` for arrays with support for - * partial deep comparisons. - * - * @private - * @param {Array} array The array to compare. - * @param {Array} other The other array to compare. - * @param {Function} equalFunc The function to determine equivalents of values. - * @param {Function} customizer The function to customize comparisons. - * @param {number} bitmask The bitmask of comparison flags. See `baseIsEqual` - * for more details. - * @param {Object} stack Tracks traversed `array` and `other` objects. - * @returns {boolean} Returns `true` if the arrays are equivalent, else `false`. - */ - function equalArrays(array, other, equalFunc, customizer, bitmask, stack) { - var isPartial = bitmask & PARTIAL_COMPARE_FLAG, - arrLength = array.length, - othLength = other.length; - - if (arrLength != othLength && !(isPartial && othLength > arrLength)) { - return false; - } - // Assume cyclic values are equal. - var stacked = stack.get(array); - if (stacked && stack.get(other)) { - return stacked == other; - } - var index = -1, - result = true, - seen = (bitmask & UNORDERED_COMPARE_FLAG) ? new SetCache : undefined; - - stack.set(array, other); - stack.set(other, array); - - // Ignore non-index properties. - while (++index < arrLength) { - var arrValue = array[index], - othValue = other[index]; - - if (customizer) { - var compared = isPartial - ? customizer(othValue, arrValue, index, other, array, stack) - : customizer(arrValue, othValue, index, array, other, stack); - } - if (compared !== undefined) { - if (compared) { - continue; - } - result = false; - break; - } - // Recursively compare arrays (susceptible to call stack limits). - if (seen) { - if (!arraySome(other, function(othValue, othIndex) { - if (!seen.has(othIndex) && - (arrValue === othValue || equalFunc(arrValue, othValue, customizer, bitmask, stack))) { - return seen.add(othIndex); - } - })) { - result = false; - break; - } - } else if (!( - arrValue === othValue || - equalFunc(arrValue, othValue, customizer, bitmask, stack) - )) { - result = false; - break; - } - } - stack['delete'](array); - stack['delete'](other); - return result; - } - - /** - * A specialized version of `baseIsEqualDeep` for comparing objects of - * the same `toStringTag`. - * - * **Note:** This function only supports comparing values with tags of - * `Boolean`, `Date`, `Error`, `Number`, `RegExp`, or `String`. - * - * @private - * @param {Object} object The object to compare. - * @param {Object} other The other object to compare. - * @param {string} tag The `toStringTag` of the objects to compare. - * @param {Function} equalFunc The function to determine equivalents of values. - * @param {Function} customizer The function to customize comparisons. - * @param {number} bitmask The bitmask of comparison flags. See `baseIsEqual` - * for more details. - * @param {Object} stack Tracks traversed `object` and `other` objects. - * @returns {boolean} Returns `true` if the objects are equivalent, else `false`. - */ - function equalByTag(object, other, tag, equalFunc, customizer, bitmask, stack) { - switch (tag) { - case dataViewTag: - if ((object.byteLength != other.byteLength) || - (object.byteOffset != other.byteOffset)) { - return false; - } - object = object.buffer; - other = other.buffer; - - case arrayBufferTag: - if ((object.byteLength != other.byteLength) || - !equalFunc(new Uint8Array(object), new Uint8Array(other))) { - return false; - } - return true; - - case boolTag: - case dateTag: - case numberTag: - // Coerce booleans to `1` or `0` and dates to milliseconds. - // Invalid dates are coerced to `NaN`. - return eq(+object, +other); - - case errorTag: - return object.name == other.name && object.message == other.message; - - case regexpTag: - case stringTag: - // Coerce regexes to strings and treat strings, primitives and objects, - // as equal. See http://www.ecma-international.org/ecma-262/7.0/#sec-regexp.prototype.tostring - // for more details. - return object == (other + ''); - - case mapTag: - var convert = mapToArray; - - case setTag: - var isPartial = bitmask & PARTIAL_COMPARE_FLAG; - convert || (convert = setToArray); - - if (object.size != other.size && !isPartial) { - return false; - } - // Assume cyclic values are equal. - var stacked = stack.get(object); - if (stacked) { - return stacked == other; - } - bitmask |= UNORDERED_COMPARE_FLAG; - - // Recursively compare objects (susceptible to call stack limits). - stack.set(object, other); - var result = equalArrays(convert(object), convert(other), equalFunc, customizer, bitmask, stack); - stack['delete'](object); - return result; - - case symbolTag: - if (symbolValueOf) { - return symbolValueOf.call(object) == symbolValueOf.call(other); - } - } - return false; - } - - /** - * A specialized version of `baseIsEqualDeep` for objects with support for - * partial deep comparisons. - * - * @private - * @param {Object} object The object to compare. - * @param {Object} other The other object to compare. - * @param {Function} equalFunc The function to determine equivalents of values. - * @param {Function} customizer The function to customize comparisons. - * @param {number} bitmask The bitmask of comparison flags. See `baseIsEqual` - * for more details. - * @param {Object} stack Tracks traversed `object` and `other` objects. - * @returns {boolean} Returns `true` if the objects are equivalent, else `false`. - */ - function equalObjects(object, other, equalFunc, customizer, bitmask, stack) { - var isPartial = bitmask & PARTIAL_COMPARE_FLAG, - objProps = keys(object), - objLength = objProps.length, - othProps = keys(other), - othLength = othProps.length; - - if (objLength != othLength && !isPartial) { - return false; - } - var index = objLength; - while (index--) { - var key = objProps[index]; - if (!(isPartial ? key in other : hasOwnProperty.call(other, key))) { - return false; - } - } - // Assume cyclic values are equal. - var stacked = stack.get(object); - if (stacked && stack.get(other)) { - return stacked == other; - } - var result = true; - stack.set(object, other); - stack.set(other, object); - - var skipCtor = isPartial; - while (++index < objLength) { - key = objProps[index]; - var objValue = object[key], - othValue = other[key]; - - if (customizer) { - var compared = isPartial - ? customizer(othValue, objValue, key, other, object, stack) - : customizer(objValue, othValue, key, object, other, stack); - } - // Recursively compare objects (susceptible to call stack limits). - if (!(compared === undefined - ? (objValue === othValue || equalFunc(objValue, othValue, customizer, bitmask, stack)) - : compared - )) { - result = false; - break; - } - skipCtor || (skipCtor = key == 'constructor'); - } - if (result && !skipCtor) { - var objCtor = object.constructor, - othCtor = other.constructor; - - // Non `Object` object instances with different constructors are not equal. - if (objCtor != othCtor && - ('constructor' in object && 'constructor' in other) && - !(typeof objCtor == 'function' && objCtor instanceof objCtor && - typeof othCtor == 'function' && othCtor instanceof othCtor)) { - result = false; - } - } - stack['delete'](object); - stack['delete'](other); - return result; - } - - /** - * Creates an array of own enumerable property names and symbols of `object`. - * - * @private - * @param {Object} object The object to query. - * @returns {Array} Returns the array of property names and symbols. - */ - function getAllKeys(object) { - return baseGetAllKeys(object, keys, getSymbols); - } - - /** - * Creates an array of own and inherited enumerable property names and - * symbols of `object`. - * - * @private - * @param {Object} object The object to query. - * @returns {Array} Returns the array of property names and symbols. - */ - function getAllKeysIn(object) { - return baseGetAllKeys(object, keysIn, getSymbolsIn); - } - - /** - * Gets metadata for `func`. - * - * @private - * @param {Function} func The function to query. - * @returns {*} Returns the metadata for `func`. - */ - var getData = !metaMap ? noop : function(func) { - return metaMap.get(func); - }; - - /** - * Gets the name of `func`. - * - * @private - * @param {Function} func The function to query. - * @returns {string} Returns the function name. - */ - function getFuncName(func) { - var result = (func.name + ''), - array = realNames[result], - length = hasOwnProperty.call(realNames, result) ? array.length : 0; - - while (length--) { - var data = array[length], - otherFunc = data.func; - if (otherFunc == null || otherFunc == func) { - return data.name; - } - } - return result; - } - - /** - * Gets the argument placeholder value for `func`. - * - * @private - * @param {Function} func The function to inspect. - * @returns {*} Returns the placeholder value. - */ - function getHolder(func) { - var object = hasOwnProperty.call(lodash, 'placeholder') ? lodash : func; - return object.placeholder; - } - - /** - * Gets the appropriate "iteratee" function. If `_.iteratee` is customized, - * this function returns the custom method, otherwise it returns `baseIteratee`. - * If arguments are provided, the chosen function is invoked with them and - * its result is returned. - * - * @private - * @param {*} [value] The value to convert to an iteratee. - * @param {number} [arity] The arity of the created iteratee. - * @returns {Function} Returns the chosen function or its result. - */ - function getIteratee() { - var result = lodash.iteratee || iteratee; - result = result === iteratee ? baseIteratee : result; - return arguments.length ? result(arguments[0], arguments[1]) : result; - } - - /** - * Gets the data for `map`. - * - * @private - * @param {Object} map The map to query. - * @param {string} key The reference key. - * @returns {*} Returns the map data. - */ - function getMapData(map, key) { - var data = map.__data__; - return isKeyable(key) - ? data[typeof key == 'string' ? 'string' : 'hash'] - : data.map; - } - - /** - * Gets the property names, values, and compare flags of `object`. - * - * @private - * @param {Object} object The object to query. - * @returns {Array} Returns the match data of `object`. - */ - function getMatchData(object) { - var result = keys(object), - length = result.length; - - while (length--) { - var key = result[length], - value = object[key]; - - result[length] = [key, value, isStrictComparable(value)]; - } - return result; - } - - /** - * Gets the native function at `key` of `object`. - * - * @private - * @param {Object} object The object to query. - * @param {string} key The key of the method to get. - * @returns {*} Returns the function if it's native, else `undefined`. - */ - function getNative(object, key) { - var value = getValue(object, key); - return baseIsNative(value) ? value : undefined; - } - - /** - * Creates an array of the own enumerable symbol properties of `object`. - * - * @private - * @param {Object} object The object to query. - * @returns {Array} Returns the array of symbols. - */ - var getSymbols = nativeGetSymbols ? overArg(nativeGetSymbols, Object) : stubArray; - - /** - * Creates an array of the own and inherited enumerable symbol properties - * of `object`. - * - * @private - * @param {Object} object The object to query. - * @returns {Array} Returns the array of symbols. - */ - var getSymbolsIn = !nativeGetSymbols ? stubArray : function(object) { - var result = []; - while (object) { - arrayPush(result, getSymbols(object)); - object = getPrototype(object); - } - return result; - }; - - /** - * Gets the `toStringTag` of `value`. - * - * @private - * @param {*} value The value to query. - * @returns {string} Returns the `toStringTag`. - */ - var getTag = baseGetTag; - - // Fallback for data views, maps, sets, and weak maps in IE 11, - // for data views in Edge < 14, and promises in Node.js. - if ((DataView && getTag(new DataView(new ArrayBuffer(1))) != dataViewTag) || - (Map && getTag(new Map) != mapTag) || - (Promise && getTag(Promise.resolve()) != promiseTag) || - (Set && getTag(new Set) != setTag) || - (WeakMap && getTag(new WeakMap) != weakMapTag)) { - getTag = function(value) { - var result = objectToString.call(value), - Ctor = result == objectTag ? value.constructor : undefined, - ctorString = Ctor ? toSource(Ctor) : undefined; - - if (ctorString) { - switch (ctorString) { - case dataViewCtorString: return dataViewTag; - case mapCtorString: return mapTag; - case promiseCtorString: return promiseTag; - case setCtorString: return setTag; - case weakMapCtorString: return weakMapTag; - } - } - return result; - }; - } - - /** - * Gets the view, applying any `transforms` to the `start` and `end` positions. - * - * @private - * @param {number} start The start of the view. - * @param {number} end The end of the view. - * @param {Array} transforms The transformations to apply to the view. - * @returns {Object} Returns an object containing the `start` and `end` - * positions of the view. - */ - function getView(start, end, transforms) { - var index = -1, - length = transforms.length; - - while (++index < length) { - var data = transforms[index], - size = data.size; - - switch (data.type) { - case 'drop': start += size; break; - case 'dropRight': end -= size; break; - case 'take': end = nativeMin(end, start + size); break; - case 'takeRight': start = nativeMax(start, end - size); break; - } - } - return { 'start': start, 'end': end }; - } - - /** - * Extracts wrapper details from the `source` body comment. - * - * @private - * @param {string} source The source to inspect. - * @returns {Array} Returns the wrapper details. - */ - function getWrapDetails(source) { - var match = source.match(reWrapDetails); - return match ? match[1].split(reSplitDetails) : []; - } - - /** - * Checks if `path` exists on `object`. - * - * @private - * @param {Object} object The object to query. - * @param {Array|string} path The path to check. - * @param {Function} hasFunc The function to check properties. - * @returns {boolean} Returns `true` if `path` exists, else `false`. - */ - function hasPath(object, path, hasFunc) { - path = isKey(path, object) ? [path] : castPath(path); - - var result, - index = -1, - length = path.length; - - while (++index < length) { - var key = toKey(path[index]); - if (!(result = object != null && hasFunc(object, key))) { - break; - } - object = object[key]; - } - if (result) { - return result; - } - var length = object ? object.length : 0; - return !!length && isLength(length) && isIndex(key, length) && - (isArray(object) || isArguments(object)); - } - - /** - * Initializes an array clone. - * - * @private - * @param {Array} array The array to clone. - * @returns {Array} Returns the initialized clone. - */ - function initCloneArray(array) { - var length = array.length, - result = array.constructor(length); - - // Add properties assigned by `RegExp#exec`. - if (length && typeof array[0] == 'string' && hasOwnProperty.call(array, 'index')) { - result.index = array.index; - result.input = array.input; - } - return result; - } - - /** - * Initializes an object clone. - * - * @private - * @param {Object} object The object to clone. - * @returns {Object} Returns the initialized clone. - */ - function initCloneObject(object) { - return (typeof object.constructor == 'function' && !isPrototype(object)) - ? baseCreate(getPrototype(object)) - : {}; - } - - /** - * Initializes an object clone based on its `toStringTag`. - * - * **Note:** This function only supports cloning values with tags of - * `Boolean`, `Date`, `Error`, `Number`, `RegExp`, or `String`. - * - * @private - * @param {Object} object The object to clone. - * @param {string} tag The `toStringTag` of the object to clone. - * @param {Function} cloneFunc The function to clone values. - * @param {boolean} [isDeep] Specify a deep clone. - * @returns {Object} Returns the initialized clone. - */ - function initCloneByTag(object, tag, cloneFunc, isDeep) { - var Ctor = object.constructor; - switch (tag) { - case arrayBufferTag: - return cloneArrayBuffer(object); - - case boolTag: - case dateTag: - return new Ctor(+object); - - case dataViewTag: - return cloneDataView(object, isDeep); - - case float32Tag: case float64Tag: - case int8Tag: case int16Tag: case int32Tag: - case uint8Tag: case uint8ClampedTag: case uint16Tag: case uint32Tag: - return cloneTypedArray(object, isDeep); - - case mapTag: - return cloneMap(object, isDeep, cloneFunc); - - case numberTag: - case stringTag: - return new Ctor(object); - - case regexpTag: - return cloneRegExp(object); - - case setTag: - return cloneSet(object, isDeep, cloneFunc); - - case symbolTag: - return cloneSymbol(object); - } - } - - /** - * Inserts wrapper `details` in a comment at the top of the `source` body. - * - * @private - * @param {string} source The source to modify. - * @returns {Array} details The details to insert. - * @returns {string} Returns the modified source. - */ - function insertWrapDetails(source, details) { - var length = details.length, - lastIndex = length - 1; - - details[lastIndex] = (length > 1 ? '& ' : '') + details[lastIndex]; - details = details.join(length > 2 ? ', ' : ' '); - return source.replace(reWrapComment, '{\n/* [wrapped with ' + details + '] */\n'); - } - - /** - * Checks if `value` is a flattenable `arguments` object or array. - * - * @private - * @param {*} value The value to check. - * @returns {boolean} Returns `true` if `value` is flattenable, else `false`. - */ - function isFlattenable(value) { - return isArray(value) || isArguments(value) || - !!(spreadableSymbol && value && value[spreadableSymbol]); - } - - /** - * Checks if `value` is a valid array-like index. - * - * @private - * @param {*} value The value to check. - * @param {number} [length=MAX_SAFE_INTEGER] The upper bounds of a valid index. - * @returns {boolean} Returns `true` if `value` is a valid index, else `false`. - */ - function isIndex(value, length) { - length = length == null ? MAX_SAFE_INTEGER : length; - return !!length && - (typeof value == 'number' || reIsUint.test(value)) && - (value > -1 && value % 1 == 0 && value < length); - } - - /** - * Checks if the given arguments are from an iteratee call. - * - * @private - * @param {*} value The potential iteratee value argument. - * @param {*} index The potential iteratee index or key argument. - * @param {*} object The potential iteratee object argument. - * @returns {boolean} Returns `true` if the arguments are from an iteratee call, - * else `false`. - */ - function isIterateeCall(value, index, object) { - if (!isObject(object)) { - return false; - } - var type = typeof index; - if (type == 'number' - ? (isArrayLike(object) && isIndex(index, object.length)) - : (type == 'string' && index in object) - ) { - return eq(object[index], value); - } - return false; - } - - /** - * Checks if `value` is a property name and not a property path. - * - * @private - * @param {*} value The value to check. - * @param {Object} [object] The object to query keys on. - * @returns {boolean} Returns `true` if `value` is a property name, else `false`. - */ - function isKey(value, object) { - if (isArray(value)) { - return false; - } - var type = typeof value; - if (type == 'number' || type == 'symbol' || type == 'boolean' || - value == null || isSymbol(value)) { - return true; - } - return reIsPlainProp.test(value) || !reIsDeepProp.test(value) || - (object != null && value in Object(object)); - } - - /** - * Checks if `value` is suitable for use as unique object key. - * - * @private - * @param {*} value The value to check. - * @returns {boolean} Returns `true` if `value` is suitable, else `false`. - */ - function isKeyable(value) { - var type = typeof value; - return (type == 'string' || type == 'number' || type == 'symbol' || type == 'boolean') - ? (value !== '__proto__') - : (value === null); - } - - /** - * Checks if `func` has a lazy counterpart. - * - * @private - * @param {Function} func The function to check. - * @returns {boolean} Returns `true` if `func` has a lazy counterpart, - * else `false`. - */ - function isLaziable(func) { - var funcName = getFuncName(func), - other = lodash[funcName]; - - if (typeof other != 'function' || !(funcName in LazyWrapper.prototype)) { - return false; - } - if (func === other) { - return true; - } - var data = getData(other); - return !!data && func === data[0]; - } - - /** - * Checks if `func` has its source masked. - * - * @private - * @param {Function} func The function to check. - * @returns {boolean} Returns `true` if `func` is masked, else `false`. - */ - function isMasked(func) { - return !!maskSrcKey && (maskSrcKey in func); - } - - /** - * Checks if `func` is capable of being masked. - * - * @private - * @param {*} value The value to check. - * @returns {boolean} Returns `true` if `func` is maskable, else `false`. - */ - var isMaskable = coreJsData ? isFunction : stubFalse; - - /** - * Checks if `value` is likely a prototype object. - * - * @private - * @param {*} value The value to check. - * @returns {boolean} Returns `true` if `value` is a prototype, else `false`. - */ - function isPrototype(value) { - var Ctor = value && value.constructor, - proto = (typeof Ctor == 'function' && Ctor.prototype) || objectProto; - - return value === proto; - } - - /** - * Checks if `value` is suitable for strict equality comparisons, i.e. `===`. - * - * @private - * @param {*} value The value to check. - * @returns {boolean} Returns `true` if `value` if suitable for strict - * equality comparisons, else `false`. - */ - function isStrictComparable(value) { - return value === value && !isObject(value); - } - - /** - * A specialized version of `matchesProperty` for source values suitable - * for strict equality comparisons, i.e. `===`. - * - * @private - * @param {string} key The key of the property to get. - * @param {*} srcValue The value to match. - * @returns {Function} Returns the new spec function. - */ - function matchesStrictComparable(key, srcValue) { - return function(object) { - if (object == null) { - return false; - } - return object[key] === srcValue && - (srcValue !== undefined || (key in Object(object))); - }; - } - - /** - * Merges the function metadata of `source` into `data`. - * - * Merging metadata reduces the number of wrappers used to invoke a function. - * This is possible because methods like `_.bind`, `_.curry`, and `_.partial` - * may be applied regardless of execution order. Methods like `_.ary` and - * `_.rearg` modify function arguments, making the order in which they are - * executed important, preventing the merging of metadata. However, we make - * an exception for a safe combined case where curried functions have `_.ary` - * and or `_.rearg` applied. - * - * @private - * @param {Array} data The destination metadata. - * @param {Array} source The source metadata. - * @returns {Array} Returns `data`. - */ - function mergeData(data, source) { - var bitmask = data[1], - srcBitmask = source[1], - newBitmask = bitmask | srcBitmask, - isCommon = newBitmask < (BIND_FLAG | BIND_KEY_FLAG | ARY_FLAG); - - var isCombo = - ((srcBitmask == ARY_FLAG) && (bitmask == CURRY_FLAG)) || - ((srcBitmask == ARY_FLAG) && (bitmask == REARG_FLAG) && (data[7].length <= source[8])) || - ((srcBitmask == (ARY_FLAG | REARG_FLAG)) && (source[7].length <= source[8]) && (bitmask == CURRY_FLAG)); - - // Exit early if metadata can't be merged. - if (!(isCommon || isCombo)) { - return data; - } - // Use source `thisArg` if available. - if (srcBitmask & BIND_FLAG) { - data[2] = source[2]; - // Set when currying a bound function. - newBitmask |= bitmask & BIND_FLAG ? 0 : CURRY_BOUND_FLAG; - } - // Compose partial arguments. - var value = source[3]; - if (value) { - var partials = data[3]; - data[3] = partials ? composeArgs(partials, value, source[4]) : value; - data[4] = partials ? replaceHolders(data[3], PLACEHOLDER) : source[4]; - } - // Compose partial right arguments. - value = source[5]; - if (value) { - partials = data[5]; - data[5] = partials ? composeArgsRight(partials, value, source[6]) : value; - data[6] = partials ? replaceHolders(data[5], PLACEHOLDER) : source[6]; - } - // Use source `argPos` if available. - value = source[7]; - if (value) { - data[7] = value; - } - // Use source `ary` if it's smaller. - if (srcBitmask & ARY_FLAG) { - data[8] = data[8] == null ? source[8] : nativeMin(data[8], source[8]); - } - // Use source `arity` if one is not provided. - if (data[9] == null) { - data[9] = source[9]; - } - // Use source `func` and merge bitmasks. - data[0] = source[0]; - data[1] = newBitmask; - - return data; - } - - /** - * Used by `_.defaultsDeep` to customize its `_.merge` use. - * - * @private - * @param {*} objValue The destination value. - * @param {*} srcValue The source value. - * @param {string} key The key of the property to merge. - * @param {Object} object The parent object of `objValue`. - * @param {Object} source The parent object of `srcValue`. - * @param {Object} [stack] Tracks traversed source values and their merged - * counterparts. - * @returns {*} Returns the value to assign. - */ - function mergeDefaults(objValue, srcValue, key, object, source, stack) { - if (isObject(objValue) && isObject(srcValue)) { - // Recursively merge objects and arrays (susceptible to call stack limits). - stack.set(srcValue, objValue); - baseMerge(objValue, srcValue, undefined, mergeDefaults, stack); - stack['delete'](srcValue); - } - return objValue; - } - - /** - * This function is like - * [`Object.keys`](http://ecma-international.org/ecma-262/7.0/#sec-object.keys) - * except that it includes inherited enumerable properties. - * - * @private - * @param {Object} object The object to query. - * @returns {Array} Returns the array of property names. - */ - function nativeKeysIn(object) { - var result = []; - if (object != null) { - for (var key in Object(object)) { - result.push(key); - } - } - return result; - } - - /** - * Gets the parent value at `path` of `object`. - * - * @private - * @param {Object} object The object to query. - * @param {Array} path The path to get the parent value of. - * @returns {*} Returns the parent value. - */ - function parent(object, path) { - return path.length == 1 ? object : baseGet(object, baseSlice(path, 0, -1)); - } - - /** - * Reorder `array` according to the specified indexes where the element at - * the first index is assigned as the first element, the element at - * the second index is assigned as the second element, and so on. - * - * @private - * @param {Array} array The array to reorder. - * @param {Array} indexes The arranged array indexes. - * @returns {Array} Returns `array`. - */ - function reorder(array, indexes) { - var arrLength = array.length, - length = nativeMin(indexes.length, arrLength), - oldArray = copyArray(array); - - while (length--) { - var index = indexes[length]; - array[length] = isIndex(index, arrLength) ? oldArray[index] : undefined; - } - return array; - } - - /** - * Sets metadata for `func`. - * - * **Note:** If this function becomes hot, i.e. is invoked a lot in a short - * period of time, it will trip its breaker and transition to an identity - * function to avoid garbage collection pauses in V8. See - * [V8 issue 2070](https://bugs.chromium.org/p/v8/issues/detail?id=2070) - * for more details. - * - * @private - * @param {Function} func The function to associate metadata with. - * @param {*} data The metadata. - * @returns {Function} Returns `func`. - */ - var setData = (function() { - var count = 0, - lastCalled = 0; - - return function(key, value) { - var stamp = now(), - remaining = HOT_SPAN - (stamp - lastCalled); - - lastCalled = stamp; - if (remaining > 0) { - if (++count >= HOT_COUNT) { - return key; - } - } else { - count = 0; - } - return baseSetData(key, value); - }; - }()); - - /** - * A simple wrapper around the global [`setTimeout`](https://mdn.io/setTimeout). - * - * @private - * @param {Function} func The function to delay. - * @param {number} wait The number of milliseconds to delay invocation. - * @returns {number|Object} Returns the timer id or timeout object. - */ - var setTimeout = ctxSetTimeout || function(func, wait) { - return root.setTimeout(func, wait); - }; - - /** - * Sets the `toString` method of `wrapper` to mimic the source of `reference` - * with wrapper details in a comment at the top of the source body. - * - * @private - * @param {Function} wrapper The function to modify. - * @param {Function} reference The reference function. - * @param {number} bitmask The bitmask flags. See `createWrap` for more details. - * @returns {Function} Returns `wrapper`. - */ - var setWrapToString = !defineProperty ? identity : function(wrapper, reference, bitmask) { - var source = (reference + ''); - return defineProperty(wrapper, 'toString', { - 'configurable': true, - 'enumerable': false, - 'value': constant(insertWrapDetails(source, updateWrapDetails(getWrapDetails(source), bitmask))) - }); - }; - - /** - * Converts `string` to a property path array. - * - * @private - * @param {string} string The string to convert. - * @returns {Array} Returns the property path array. - */ - var stringToPath = memoize(function(string) { - string = toString(string); - - var result = []; - if (reLeadingDot.test(string)) { - result.push(''); - } - string.replace(rePropName, function(match, number, quote, string) { - result.push(quote ? string.replace(reEscapeChar, '$1') : (number || match)); - }); - return result; - }); - - /** - * Converts `value` to a string key if it's not a string or symbol. - * - * @private - * @param {*} value The value to inspect. - * @returns {string|symbol} Returns the key. - */ - function toKey(value) { - if (typeof value == 'string' || isSymbol(value)) { - return value; - } - var result = (value + ''); - return (result == '0' && (1 / value) == -INFINITY) ? '-0' : result; - } - - /** - * Converts `func` to its source code. - * - * @private - * @param {Function} func The function to process. - * @returns {string} Returns the source code. - */ - function toSource(func) { - if (func != null) { - try { - return funcToString.call(func); - } catch (e) {} - try { - return (func + ''); - } catch (e) {} - } - return ''; - } - - /** - * Updates wrapper `details` based on `bitmask` flags. - * - * @private - * @returns {Array} details The details to modify. - * @param {number} bitmask The bitmask flags. See `createWrap` for more details. - * @returns {Array} Returns `details`. - */ - function updateWrapDetails(details, bitmask) { - arrayEach(wrapFlags, function(pair) { - var value = '_.' + pair[0]; - if ((bitmask & pair[1]) && !arrayIncludes(details, value)) { - details.push(value); - } - }); - return details.sort(); - } - - /** - * Creates a clone of `wrapper`. - * - * @private - * @param {Object} wrapper The wrapper to clone. - * @returns {Object} Returns the cloned wrapper. - */ - function wrapperClone(wrapper) { - if (wrapper instanceof LazyWrapper) { - return wrapper.clone(); - } - var result = new LodashWrapper(wrapper.__wrapped__, wrapper.__chain__); - result.__actions__ = copyArray(wrapper.__actions__); - result.__index__ = wrapper.__index__; - result.__values__ = wrapper.__values__; - return result; - } - - /*------------------------------------------------------------------------*/ - - /** - * Creates an array of elements split into groups the length of `size`. - * If `array` can't be split evenly, the final chunk will be the remaining - * elements. - * - * @static - * @memberOf _ - * @since 3.0.0 - * @category Array - * @param {Array} array The array to process. - * @param {number} [size=1] The length of each chunk - * @param- {Object} [guard] Enables use as an iteratee for methods like `_.map`. - * @returns {Array} Returns the new array of chunks. - * @example - * - * _.chunk(['a', 'b', 'c', 'd'], 2); - * // => [['a', 'b'], ['c', 'd']] - * - * _.chunk(['a', 'b', 'c', 'd'], 3); - * // => [['a', 'b', 'c'], ['d']] - */ - function chunk(array, size, guard) { - if ((guard ? isIterateeCall(array, size, guard) : size === undefined)) { - size = 1; - } else { - size = nativeMax(toInteger(size), 0); - } - var length = array ? array.length : 0; - if (!length || size < 1) { - return []; - } - var index = 0, - resIndex = 0, - result = Array(nativeCeil(length / size)); - - while (index < length) { - result[resIndex++] = baseSlice(array, index, (index += size)); - } - return result; - } - - /** - * Creates an array with all falsey values removed. The values `false`, `null`, - * `0`, `""`, `undefined`, and `NaN` are falsey. - * - * @static - * @memberOf _ - * @since 0.1.0 - * @category Array - * @param {Array} array The array to compact. - * @returns {Array} Returns the new array of filtered values. - * @example - * - * _.compact([0, 1, false, 2, '', 3]); - * // => [1, 2, 3] - */ - function compact(array) { - var index = -1, - length = array ? array.length : 0, - resIndex = 0, - result = []; - - while (++index < length) { - var value = array[index]; - if (value) { - result[resIndex++] = value; - } - } - return result; - } - - /** - * Creates a new array concatenating `array` with any additional arrays - * and/or values. - * - * @static - * @memberOf _ - * @since 4.0.0 - * @category Array - * @param {Array} array The array to concatenate. - * @param {...*} [values] The values to concatenate. - * @returns {Array} Returns the new concatenated array. - * @example - * - * var array = [1]; - * var other = _.concat(array, 2, [3], [[4]]); - * - * console.log(other); - * // => [1, 2, 3, [4]] - * - * console.log(array); - * // => [1] - */ - function concat() { - var length = arguments.length, - args = Array(length ? length - 1 : 0), - array = arguments[0], - index = length; - - while (index--) { - args[index - 1] = arguments[index]; - } - return length - ? arrayPush(isArray(array) ? copyArray(array) : [array], baseFlatten(args, 1)) - : []; - } - - /** - * Creates an array of `array` values not included in the other given arrays - * using [`SameValueZero`](http://ecma-international.org/ecma-262/7.0/#sec-samevaluezero) - * for equality comparisons. The order of result values is determined by the - * order they occur in the first array. - * - * **Note:** Unlike `_.pullAll`, this method returns a new array. - * - * @static - * @memberOf _ - * @since 0.1.0 - * @category Array - * @param {Array} array The array to inspect. - * @param {...Array} [values] The values to exclude. - * @returns {Array} Returns the new array of filtered values. - * @see _.without, _.xor - * @example - * - * _.difference([2, 1], [2, 3]); - * // => [1] - */ - var difference = baseRest(function(array, values) { - return isArrayLikeObject(array) - ? baseDifference(array, baseFlatten(values, 1, isArrayLikeObject, true)) - : []; - }); - - /** - * This method is like `_.difference` except that it accepts `iteratee` which - * is invoked for each element of `array` and `values` to generate the criterion - * by which they're compared. Result values are chosen from the first array. - * The iteratee is invoked with one argument: (value). - * - * **Note:** Unlike `_.pullAllBy`, this method returns a new array. - * - * @static - * @memberOf _ - * @since 4.0.0 - * @category Array - * @param {Array} array The array to inspect. - * @param {...Array} [values] The values to exclude. - * @param {Function} [iteratee=_.identity] The iteratee invoked per element. - * @returns {Array} Returns the new array of filtered values. - * @example - * - * _.differenceBy([2.1, 1.2], [2.3, 3.4], Math.floor); - * // => [1.2] - * - * // The `_.property` iteratee shorthand. - * _.differenceBy([{ 'x': 2 }, { 'x': 1 }], [{ 'x': 1 }], 'x'); - * // => [{ 'x': 2 }] - */ - var differenceBy = baseRest(function(array, values) { - var iteratee = last(values); - if (isArrayLikeObject(iteratee)) { - iteratee = undefined; - } - return isArrayLikeObject(array) - ? baseDifference(array, baseFlatten(values, 1, isArrayLikeObject, true), getIteratee(iteratee, 2)) - : []; - }); - - /** - * This method is like `_.difference` except that it accepts `comparator` - * which is invoked to compare elements of `array` to `values`. Result values - * are chosen from the first array. The comparator is invoked with two arguments: - * (arrVal, othVal). - * - * **Note:** Unlike `_.pullAllWith`, this method returns a new array. - * - * @static - * @memberOf _ - * @since 4.0.0 - * @category Array - * @param {Array} array The array to inspect. - * @param {...Array} [values] The values to exclude. - * @param {Function} [comparator] The comparator invoked per element. - * @returns {Array} Returns the new array of filtered values. - * @example - * - * var objects = [{ 'x': 1, 'y': 2 }, { 'x': 2, 'y': 1 }]; - * - * _.differenceWith(objects, [{ 'x': 1, 'y': 2 }], _.isEqual); - * // => [{ 'x': 2, 'y': 1 }] - */ - var differenceWith = baseRest(function(array, values) { - var comparator = last(values); - if (isArrayLikeObject(comparator)) { - comparator = undefined; - } - return isArrayLikeObject(array) - ? baseDifference(array, baseFlatten(values, 1, isArrayLikeObject, true), undefined, comparator) - : []; - }); - - /** - * Creates a slice of `array` with `n` elements dropped from the beginning. - * - * @static - * @memberOf _ - * @since 0.5.0 - * @category Array - * @param {Array} array The array to query. - * @param {number} [n=1] The number of elements to drop. - * @param- {Object} [guard] Enables use as an iteratee for methods like `_.map`. - * @returns {Array} Returns the slice of `array`. - * @example - * - * _.drop([1, 2, 3]); - * // => [2, 3] - * - * _.drop([1, 2, 3], 2); - * // => [3] - * - * _.drop([1, 2, 3], 5); - * // => [] - * - * _.drop([1, 2, 3], 0); - * // => [1, 2, 3] - */ - function drop(array, n, guard) { - var length = array ? array.length : 0; - if (!length) { - return []; - } - n = (guard || n === undefined) ? 1 : toInteger(n); - return baseSlice(array, n < 0 ? 0 : n, length); - } - - /** - * Creates a slice of `array` with `n` elements dropped from the end. - * - * @static - * @memberOf _ - * @since 3.0.0 - * @category Array - * @param {Array} array The array to query. - * @param {number} [n=1] The number of elements to drop. - * @param- {Object} [guard] Enables use as an iteratee for methods like `_.map`. - * @returns {Array} Returns the slice of `array`. - * @example - * - * _.dropRight([1, 2, 3]); - * // => [1, 2] - * - * _.dropRight([1, 2, 3], 2); - * // => [1] - * - * _.dropRight([1, 2, 3], 5); - * // => [] - * - * _.dropRight([1, 2, 3], 0); - * // => [1, 2, 3] - */ - function dropRight(array, n, guard) { - var length = array ? array.length : 0; - if (!length) { - return []; - } - n = (guard || n === undefined) ? 1 : toInteger(n); - n = length - n; - return baseSlice(array, 0, n < 0 ? 0 : n); - } - - /** - * Creates a slice of `array` excluding elements dropped from the end. - * Elements are dropped until `predicate` returns falsey. The predicate is - * invoked with three arguments: (value, index, array). - * - * @static - * @memberOf _ - * @since 3.0.0 - * @category Array - * @param {Array} array The array to query. - * @param {Function} [predicate=_.identity] The function invoked per iteration. - * @returns {Array} Returns the slice of `array`. - * @example - * - * var users = [ - * { 'user': 'barney', 'active': true }, - * { 'user': 'fred', 'active': false }, - * { 'user': 'pebbles', 'active': false } - * ]; - * - * _.dropRightWhile(users, function(o) { return !o.active; }); - * // => objects for ['barney'] - * - * // The `_.matches` iteratee shorthand. - * _.dropRightWhile(users, { 'user': 'pebbles', 'active': false }); - * // => objects for ['barney', 'fred'] - * - * // The `_.matchesProperty` iteratee shorthand. - * _.dropRightWhile(users, ['active', false]); - * // => objects for ['barney'] - * - * // The `_.property` iteratee shorthand. - * _.dropRightWhile(users, 'active'); - * // => objects for ['barney', 'fred', 'pebbles'] - */ - function dropRightWhile(array, predicate) { - return (array && array.length) - ? baseWhile(array, getIteratee(predicate, 3), true, true) - : []; - } - - /** - * Creates a slice of `array` excluding elements dropped from the beginning. - * Elements are dropped until `predicate` returns falsey. The predicate is - * invoked with three arguments: (value, index, array). - * - * @static - * @memberOf _ - * @since 3.0.0 - * @category Array - * @param {Array} array The array to query. - * @param {Function} [predicate=_.identity] - * The function invoked per iteration. - * @returns {Array} Returns the slice of `array`. - * @example - * - * var users = [ - * { 'user': 'barney', 'active': false }, - * { 'user': 'fred', 'active': false }, - * { 'user': 'pebbles', 'active': true } - * ]; - * - * _.dropWhile(users, function(o) { return !o.active; }); - * // => objects for ['pebbles'] - * - * // The `_.matches` iteratee shorthand. - * _.dropWhile(users, { 'user': 'barney', 'active': false }); - * // => objects for ['fred', 'pebbles'] - * - * // The `_.matchesProperty` iteratee shorthand. - * _.dropWhile(users, ['active', false]); - * // => objects for ['pebbles'] - * - * // The `_.property` iteratee shorthand. - * _.dropWhile(users, 'active'); - * // => objects for ['barney', 'fred', 'pebbles'] - */ - function dropWhile(array, predicate) { - return (array && array.length) - ? baseWhile(array, getIteratee(predicate, 3), true) - : []; - } - - /** - * Fills elements of `array` with `value` from `start` up to, but not - * including, `end`. - * - * **Note:** This method mutates `array`. - * - * @static - * @memberOf _ - * @since 3.2.0 - * @category Array - * @param {Array} array The array to fill. - * @param {*} value The value to fill `array` with. - * @param {number} [start=0] The start position. - * @param {number} [end=array.length] The end position. - * @returns {Array} Returns `array`. - * @example - * - * var array = [1, 2, 3]; - * - * _.fill(array, 'a'); - * console.log(array); - * // => ['a', 'a', 'a'] - * - * _.fill(Array(3), 2); - * // => [2, 2, 2] - * - * _.fill([4, 6, 8, 10], '*', 1, 3); - * // => [4, '*', '*', 10] - */ - function fill(array, value, start, end) { - var length = array ? array.length : 0; - if (!length) { - return []; - } - if (start && typeof start != 'number' && isIterateeCall(array, value, start)) { - start = 0; - end = length; - } - return baseFill(array, value, start, end); - } - - /** - * This method is like `_.find` except that it returns the index of the first - * element `predicate` returns truthy for instead of the element itself. - * - * @static - * @memberOf _ - * @since 1.1.0 - * @category Array - * @param {Array} array The array to inspect. - * @param {Function} [predicate=_.identity] - * The function invoked per iteration. - * @param {number} [fromIndex=0] The index to search from. - * @returns {number} Returns the index of the found element, else `-1`. - * @example - * - * var users = [ - * { 'user': 'barney', 'active': false }, - * { 'user': 'fred', 'active': false }, - * { 'user': 'pebbles', 'active': true } - * ]; - * - * _.findIndex(users, function(o) { return o.user == 'barney'; }); - * // => 0 - * - * // The `_.matches` iteratee shorthand. - * _.findIndex(users, { 'user': 'fred', 'active': false }); - * // => 1 - * - * // The `_.matchesProperty` iteratee shorthand. - * _.findIndex(users, ['active', false]); - * // => 0 - * - * // The `_.property` iteratee shorthand. - * _.findIndex(users, 'active'); - * // => 2 - */ - function findIndex(array, predicate, fromIndex) { - var length = array ? array.length : 0; - if (!length) { - return -1; - } - var index = fromIndex == null ? 0 : toInteger(fromIndex); - if (index < 0) { - index = nativeMax(length + index, 0); - } - return baseFindIndex(array, getIteratee(predicate, 3), index); - } - - /** - * This method is like `_.findIndex` except that it iterates over elements - * of `collection` from right to left. - * - * @static - * @memberOf _ - * @since 2.0.0 - * @category Array - * @param {Array} array The array to inspect. - * @param {Function} [predicate=_.identity] - * The function invoked per iteration. - * @param {number} [fromIndex=array.length-1] The index to search from. - * @returns {number} Returns the index of the found element, else `-1`. - * @example - * - * var users = [ - * { 'user': 'barney', 'active': true }, - * { 'user': 'fred', 'active': false }, - * { 'user': 'pebbles', 'active': false } - * ]; - * - * _.findLastIndex(users, function(o) { return o.user == 'pebbles'; }); - * // => 2 - * - * // The `_.matches` iteratee shorthand. - * _.findLastIndex(users, { 'user': 'barney', 'active': true }); - * // => 0 - * - * // The `_.matchesProperty` iteratee shorthand. - * _.findLastIndex(users, ['active', false]); - * // => 2 - * - * // The `_.property` iteratee shorthand. - * _.findLastIndex(users, 'active'); - * // => 0 - */ - function findLastIndex(array, predicate, fromIndex) { - var length = array ? array.length : 0; - if (!length) { - return -1; - } - var index = length - 1; - if (fromIndex !== undefined) { - index = toInteger(fromIndex); - index = fromIndex < 0 - ? nativeMax(length + index, 0) - : nativeMin(index, length - 1); - } - return baseFindIndex(array, getIteratee(predicate, 3), index, true); - } - - /** - * Flattens `array` a single level deep. - * - * @static - * @memberOf _ - * @since 0.1.0 - * @category Array - * @param {Array} array The array to flatten. - * @returns {Array} Returns the new flattened array. - * @example - * - * _.flatten([1, [2, [3, [4]], 5]]); - * // => [1, 2, [3, [4]], 5] - */ - function flatten(array) { - var length = array ? array.length : 0; - return length ? baseFlatten(array, 1) : []; - } - - /** - * Recursively flattens `array`. - * - * @static - * @memberOf _ - * @since 3.0.0 - * @category Array - * @param {Array} array The array to flatten. - * @returns {Array} Returns the new flattened array. - * @example - * - * _.flattenDeep([1, [2, [3, [4]], 5]]); - * // => [1, 2, 3, 4, 5] - */ - function flattenDeep(array) { - var length = array ? array.length : 0; - return length ? baseFlatten(array, INFINITY) : []; - } - - /** - * Recursively flatten `array` up to `depth` times. - * - * @static - * @memberOf _ - * @since 4.4.0 - * @category Array - * @param {Array} array The array to flatten. - * @param {number} [depth=1] The maximum recursion depth. - * @returns {Array} Returns the new flattened array. - * @example - * - * var array = [1, [2, [3, [4]], 5]]; - * - * _.flattenDepth(array, 1); - * // => [1, 2, [3, [4]], 5] - * - * _.flattenDepth(array, 2); - * // => [1, 2, 3, [4], 5] - */ - function flattenDepth(array, depth) { - var length = array ? array.length : 0; - if (!length) { - return []; - } - depth = depth === undefined ? 1 : toInteger(depth); - return baseFlatten(array, depth); - } - - /** - * The inverse of `_.toPairs`; this method returns an object composed - * from key-value `pairs`. - * - * @static - * @memberOf _ - * @since 4.0.0 - * @category Array - * @param {Array} pairs The key-value pairs. - * @returns {Object} Returns the new object. - * @example - * - * _.fromPairs([['a', 1], ['b', 2]]); - * // => { 'a': 1, 'b': 2 } - */ - function fromPairs(pairs) { - var index = -1, - length = pairs ? pairs.length : 0, - result = {}; - - while (++index < length) { - var pair = pairs[index]; - result[pair[0]] = pair[1]; - } - return result; - } - - /** - * Gets the first element of `array`. - * - * @static - * @memberOf _ - * @since 0.1.0 - * @alias first - * @category Array - * @param {Array} array The array to query. - * @returns {*} Returns the first element of `array`. - * @example - * - * _.head([1, 2, 3]); - * // => 1 - * - * _.head([]); - * // => undefined - */ - function head(array) { - return (array && array.length) ? array[0] : undefined; - } - - /** - * Gets the index at which the first occurrence of `value` is found in `array` - * using [`SameValueZero`](http://ecma-international.org/ecma-262/7.0/#sec-samevaluezero) - * for equality comparisons. If `fromIndex` is negative, it's used as the - * offset from the end of `array`. - * - * @static - * @memberOf _ - * @since 0.1.0 - * @category Array - * @param {Array} array The array to inspect. - * @param {*} value The value to search for. - * @param {number} [fromIndex=0] The index to search from. - * @returns {number} Returns the index of the matched value, else `-1`. - * @example - * - * _.indexOf([1, 2, 1, 2], 2); - * // => 1 - * - * // Search from the `fromIndex`. - * _.indexOf([1, 2, 1, 2], 2, 2); - * // => 3 - */ - function indexOf(array, value, fromIndex) { - var length = array ? array.length : 0; - if (!length) { - return -1; - } - var index = fromIndex == null ? 0 : toInteger(fromIndex); - if (index < 0) { - index = nativeMax(length + index, 0); - } - return baseIndexOf(array, value, index); - } - - /** - * Gets all but the last element of `array`. - * - * @static - * @memberOf _ - * @since 0.1.0 - * @category Array - * @param {Array} array The array to query. - * @returns {Array} Returns the slice of `array`. - * @example - * - * _.initial([1, 2, 3]); - * // => [1, 2] - */ - function initial(array) { - var length = array ? array.length : 0; - return length ? baseSlice(array, 0, -1) : []; - } - - /** - * Creates an array of unique values that are included in all given arrays - * using [`SameValueZero`](http://ecma-international.org/ecma-262/7.0/#sec-samevaluezero) - * for equality comparisons. The order of result values is determined by the - * order they occur in the first array. - * - * @static - * @memberOf _ - * @since 0.1.0 - * @category Array - * @param {...Array} [arrays] The arrays to inspect. - * @returns {Array} Returns the new array of intersecting values. - * @example - * - * _.intersection([2, 1], [2, 3]); - * // => [2] - */ - var intersection = baseRest(function(arrays) { - var mapped = arrayMap(arrays, castArrayLikeObject); - return (mapped.length && mapped[0] === arrays[0]) - ? baseIntersection(mapped) - : []; - }); - - /** - * This method is like `_.intersection` except that it accepts `iteratee` - * which is invoked for each element of each `arrays` to generate the criterion - * by which they're compared. Result values are chosen from the first array. - * The iteratee is invoked with one argument: (value). - * - * @static - * @memberOf _ - * @since 4.0.0 - * @category Array - * @param {...Array} [arrays] The arrays to inspect. - * @param {Function} [iteratee=_.identity] The iteratee invoked per element. - * @returns {Array} Returns the new array of intersecting values. - * @example - * - * _.intersectionBy([2.1, 1.2], [2.3, 3.4], Math.floor); - * // => [2.1] - * - * // The `_.property` iteratee shorthand. - * _.intersectionBy([{ 'x': 1 }], [{ 'x': 2 }, { 'x': 1 }], 'x'); - * // => [{ 'x': 1 }] - */ - var intersectionBy = baseRest(function(arrays) { - var iteratee = last(arrays), - mapped = arrayMap(arrays, castArrayLikeObject); - - if (iteratee === last(mapped)) { - iteratee = undefined; - } else { - mapped.pop(); - } - return (mapped.length && mapped[0] === arrays[0]) - ? baseIntersection(mapped, getIteratee(iteratee, 2)) - : []; - }); - - /** - * This method is like `_.intersection` except that it accepts `comparator` - * which is invoked to compare elements of `arrays`. Result values are chosen - * from the first array. The comparator is invoked with two arguments: - * (arrVal, othVal). - * - * @static - * @memberOf _ - * @since 4.0.0 - * @category Array - * @param {...Array} [arrays] The arrays to inspect. - * @param {Function} [comparator] The comparator invoked per element. - * @returns {Array} Returns the new array of intersecting values. - * @example - * - * var objects = [{ 'x': 1, 'y': 2 }, { 'x': 2, 'y': 1 }]; - * var others = [{ 'x': 1, 'y': 1 }, { 'x': 1, 'y': 2 }]; - * - * _.intersectionWith(objects, others, _.isEqual); - * // => [{ 'x': 1, 'y': 2 }] - */ - var intersectionWith = baseRest(function(arrays) { - var comparator = last(arrays), - mapped = arrayMap(arrays, castArrayLikeObject); - - if (comparator === last(mapped)) { - comparator = undefined; - } else { - mapped.pop(); - } - return (mapped.length && mapped[0] === arrays[0]) - ? baseIntersection(mapped, undefined, comparator) - : []; - }); - - /** - * Converts all elements in `array` into a string separated by `separator`. - * - * @static - * @memberOf _ - * @since 4.0.0 - * @category Array - * @param {Array} array The array to convert. - * @param {string} [separator=','] The element separator. - * @returns {string} Returns the joined string. - * @example - * - * _.join(['a', 'b', 'c'], '~'); - * // => 'a~b~c' - */ - function join(array, separator) { - return array ? nativeJoin.call(array, separator) : ''; - } - - /** - * Gets the last element of `array`. - * - * @static - * @memberOf _ - * @since 0.1.0 - * @category Array - * @param {Array} array The array to query. - * @returns {*} Returns the last element of `array`. - * @example - * - * _.last([1, 2, 3]); - * // => 3 - */ - function last(array) { - var length = array ? array.length : 0; - return length ? array[length - 1] : undefined; - } - - /** - * This method is like `_.indexOf` except that it iterates over elements of - * `array` from right to left. - * - * @static - * @memberOf _ - * @since 0.1.0 - * @category Array - * @param {Array} array The array to inspect. - * @param {*} value The value to search for. - * @param {number} [fromIndex=array.length-1] The index to search from. - * @returns {number} Returns the index of the matched value, else `-1`. - * @example - * - * _.lastIndexOf([1, 2, 1, 2], 2); - * // => 3 - * - * // Search from the `fromIndex`. - * _.lastIndexOf([1, 2, 1, 2], 2, 2); - * // => 1 - */ - function lastIndexOf(array, value, fromIndex) { - var length = array ? array.length : 0; - if (!length) { - return -1; - } - var index = length; - if (fromIndex !== undefined) { - index = toInteger(fromIndex); - index = ( - index < 0 - ? nativeMax(length + index, 0) - : nativeMin(index, length - 1) - ) + 1; - } - if (value !== value) { - return baseFindIndex(array, baseIsNaN, index - 1, true); - } - while (index--) { - if (array[index] === value) { - return index; - } - } - return -1; - } - - /** - * Gets the element at index `n` of `array`. If `n` is negative, the nth - * element from the end is returned. - * - * @static - * @memberOf _ - * @since 4.11.0 - * @category Array - * @param {Array} array The array to query. - * @param {number} [n=0] The index of the element to return. - * @returns {*} Returns the nth element of `array`. - * @example - * - * var array = ['a', 'b', 'c', 'd']; - * - * _.nth(array, 1); - * // => 'b' - * - * _.nth(array, -2); - * // => 'c'; - */ - function nth(array, n) { - return (array && array.length) ? baseNth(array, toInteger(n)) : undefined; - } - - /** - * Removes all given values from `array` using - * [`SameValueZero`](http://ecma-international.org/ecma-262/7.0/#sec-samevaluezero) - * for equality comparisons. - * - * **Note:** Unlike `_.without`, this method mutates `array`. Use `_.remove` - * to remove elements from an array by predicate. - * - * @static - * @memberOf _ - * @since 2.0.0 - * @category Array - * @param {Array} array The array to modify. - * @param {...*} [values] The values to remove. - * @returns {Array} Returns `array`. - * @example - * - * var array = ['a', 'b', 'c', 'a', 'b', 'c']; - * - * _.pull(array, 'a', 'c'); - * console.log(array); - * // => ['b', 'b'] - */ - var pull = baseRest(pullAll); - - /** - * This method is like `_.pull` except that it accepts an array of values to remove. - * - * **Note:** Unlike `_.difference`, this method mutates `array`. - * - * @static - * @memberOf _ - * @since 4.0.0 - * @category Array - * @param {Array} array The array to modify. - * @param {Array} values The values to remove. - * @returns {Array} Returns `array`. - * @example - * - * var array = ['a', 'b', 'c', 'a', 'b', 'c']; - * - * _.pullAll(array, ['a', 'c']); - * console.log(array); - * // => ['b', 'b'] - */ - function pullAll(array, values) { - return (array && array.length && values && values.length) - ? basePullAll(array, values) - : array; - } - - /** - * This method is like `_.pullAll` except that it accepts `iteratee` which is - * invoked for each element of `array` and `values` to generate the criterion - * by which they're compared. The iteratee is invoked with one argument: (value). - * - * **Note:** Unlike `_.differenceBy`, this method mutates `array`. - * - * @static - * @memberOf _ - * @since 4.0.0 - * @category Array - * @param {Array} array The array to modify. - * @param {Array} values The values to remove. - * @param {Function} [iteratee=_.identity] - * The iteratee invoked per element. - * @returns {Array} Returns `array`. - * @example - * - * var array = [{ 'x': 1 }, { 'x': 2 }, { 'x': 3 }, { 'x': 1 }]; - * - * _.pullAllBy(array, [{ 'x': 1 }, { 'x': 3 }], 'x'); - * console.log(array); - * // => [{ 'x': 2 }] - */ - function pullAllBy(array, values, iteratee) { - return (array && array.length && values && values.length) - ? basePullAll(array, values, getIteratee(iteratee, 2)) - : array; - } - - /** - * This method is like `_.pullAll` except that it accepts `comparator` which - * is invoked to compare elements of `array` to `values`. The comparator is - * invoked with two arguments: (arrVal, othVal). - * - * **Note:** Unlike `_.differenceWith`, this method mutates `array`. - * - * @static - * @memberOf _ - * @since 4.6.0 - * @category Array - * @param {Array} array The array to modify. - * @param {Array} values The values to remove. - * @param {Function} [comparator] The comparator invoked per element. - * @returns {Array} Returns `array`. - * @example - * - * var array = [{ 'x': 1, 'y': 2 }, { 'x': 3, 'y': 4 }, { 'x': 5, 'y': 6 }]; - * - * _.pullAllWith(array, [{ 'x': 3, 'y': 4 }], _.isEqual); - * console.log(array); - * // => [{ 'x': 1, 'y': 2 }, { 'x': 5, 'y': 6 }] - */ - function pullAllWith(array, values, comparator) { - return (array && array.length && values && values.length) - ? basePullAll(array, values, undefined, comparator) - : array; - } - - /** - * Removes elements from `array` corresponding to `indexes` and returns an - * array of removed elements. - * - * **Note:** Unlike `_.at`, this method mutates `array`. - * - * @static - * @memberOf _ - * @since 3.0.0 - * @category Array - * @param {Array} array The array to modify. - * @param {...(number|number[])} [indexes] The indexes of elements to remove. - * @returns {Array} Returns the new array of removed elements. - * @example - * - * var array = ['a', 'b', 'c', 'd']; - * var pulled = _.pullAt(array, [1, 3]); - * - * console.log(array); - * // => ['a', 'c'] - * - * console.log(pulled); - * // => ['b', 'd'] - */ - var pullAt = baseRest(function(array, indexes) { - indexes = baseFlatten(indexes, 1); - - var length = array ? array.length : 0, - result = baseAt(array, indexes); - - basePullAt(array, arrayMap(indexes, function(index) { - return isIndex(index, length) ? +index : index; - }).sort(compareAscending)); - - return result; - }); - - /** - * Removes all elements from `array` that `predicate` returns truthy for - * and returns an array of the removed elements. The predicate is invoked - * with three arguments: (value, index, array). - * - * **Note:** Unlike `_.filter`, this method mutates `array`. Use `_.pull` - * to pull elements from an array by value. - * - * @static - * @memberOf _ - * @since 2.0.0 - * @category Array - * @param {Array} array The array to modify. - * @param {Function} [predicate=_.identity] - * The function invoked per iteration. - * @returns {Array} Returns the new array of removed elements. - * @example - * - * var array = [1, 2, 3, 4]; - * var evens = _.remove(array, function(n) { - * return n % 2 == 0; - * }); - * - * console.log(array); - * // => [1, 3] - * - * console.log(evens); - * // => [2, 4] - */ - function remove(array, predicate) { - var result = []; - if (!(array && array.length)) { - return result; - } - var index = -1, - indexes = [], - length = array.length; - - predicate = getIteratee(predicate, 3); - while (++index < length) { - var value = array[index]; - if (predicate(value, index, array)) { - result.push(value); - indexes.push(index); - } - } - basePullAt(array, indexes); - return result; - } - - /** - * Reverses `array` so that the first element becomes the last, the second - * element becomes the second to last, and so on. - * - * **Note:** This method mutates `array` and is based on - * [`Array#reverse`](https://mdn.io/Array/reverse). - * - * @static - * @memberOf _ - * @since 4.0.0 - * @category Array - * @param {Array} array The array to modify. - * @returns {Array} Returns `array`. - * @example - * - * var array = [1, 2, 3]; - * - * _.reverse(array); - * // => [3, 2, 1] - * - * console.log(array); - * // => [3, 2, 1] - */ - function reverse(array) { - return array ? nativeReverse.call(array) : array; - } - - /** - * Creates a slice of `array` from `start` up to, but not including, `end`. - * - * **Note:** This method is used instead of - * [`Array#slice`](https://mdn.io/Array/slice) to ensure dense arrays are - * returned. - * - * @static - * @memberOf _ - * @since 3.0.0 - * @category Array - * @param {Array} array The array to slice. - * @param {number} [start=0] The start position. - * @param {number} [end=array.length] The end position. - * @returns {Array} Returns the slice of `array`. - */ - function slice(array, start, end) { - var length = array ? array.length : 0; - if (!length) { - return []; - } - if (end && typeof end != 'number' && isIterateeCall(array, start, end)) { - start = 0; - end = length; - } - else { - start = start == null ? 0 : toInteger(start); - end = end === undefined ? length : toInteger(end); - } - return baseSlice(array, start, end); - } - - /** - * Uses a binary search to determine the lowest index at which `value` - * should be inserted into `array` in order to maintain its sort order. - * - * @static - * @memberOf _ - * @since 0.1.0 - * @category Array - * @param {Array} array The sorted array to inspect. - * @param {*} value The value to evaluate. - * @returns {number} Returns the index at which `value` should be inserted - * into `array`. - * @example - * - * _.sortedIndex([30, 50], 40); - * // => 1 - */ - function sortedIndex(array, value) { - return baseSortedIndex(array, value); - } - - /** - * This method is like `_.sortedIndex` except that it accepts `iteratee` - * which is invoked for `value` and each element of `array` to compute their - * sort ranking. The iteratee is invoked with one argument: (value). - * - * @static - * @memberOf _ - * @since 4.0.0 - * @category Array - * @param {Array} array The sorted array to inspect. - * @param {*} value The value to evaluate. - * @param {Function} [iteratee=_.identity] - * The iteratee invoked per element. - * @returns {number} Returns the index at which `value` should be inserted - * into `array`. - * @example - * - * var objects = [{ 'x': 4 }, { 'x': 5 }]; - * - * _.sortedIndexBy(objects, { 'x': 4 }, function(o) { return o.x; }); - * // => 0 - * - * // The `_.property` iteratee shorthand. - * _.sortedIndexBy(objects, { 'x': 4 }, 'x'); - * // => 0 - */ - function sortedIndexBy(array, value, iteratee) { - return baseSortedIndexBy(array, value, getIteratee(iteratee, 2)); - } - - /** - * This method is like `_.indexOf` except that it performs a binary - * search on a sorted `array`. - * - * @static - * @memberOf _ - * @since 4.0.0 - * @category Array - * @param {Array} array The array to inspect. - * @param {*} value The value to search for. - * @returns {number} Returns the index of the matched value, else `-1`. - * @example - * - * _.sortedIndexOf([4, 5, 5, 5, 6], 5); - * // => 1 - */ - function sortedIndexOf(array, value) { - var length = array ? array.length : 0; - if (length) { - var index = baseSortedIndex(array, value); - if (index < length && eq(array[index], value)) { - return index; - } - } - return -1; - } - - /** - * This method is like `_.sortedIndex` except that it returns the highest - * index at which `value` should be inserted into `array` in order to - * maintain its sort order. - * - * @static - * @memberOf _ - * @since 3.0.0 - * @category Array - * @param {Array} array The sorted array to inspect. - * @param {*} value The value to evaluate. - * @returns {number} Returns the index at which `value` should be inserted - * into `array`. - * @example - * - * _.sortedLastIndex([4, 5, 5, 5, 6], 5); - * // => 4 - */ - function sortedLastIndex(array, value) { - return baseSortedIndex(array, value, true); - } - - /** - * This method is like `_.sortedLastIndex` except that it accepts `iteratee` - * which is invoked for `value` and each element of `array` to compute their - * sort ranking. The iteratee is invoked with one argument: (value). - * - * @static - * @memberOf _ - * @since 4.0.0 - * @category Array - * @param {Array} array The sorted array to inspect. - * @param {*} value The value to evaluate. - * @param {Function} [iteratee=_.identity] - * The iteratee invoked per element. - * @returns {number} Returns the index at which `value` should be inserted - * into `array`. - * @example - * - * var objects = [{ 'x': 4 }, { 'x': 5 }]; - * - * _.sortedLastIndexBy(objects, { 'x': 4 }, function(o) { return o.x; }); - * // => 1 - * - * // The `_.property` iteratee shorthand. - * _.sortedLastIndexBy(objects, { 'x': 4 }, 'x'); - * // => 1 - */ - function sortedLastIndexBy(array, value, iteratee) { - return baseSortedIndexBy(array, value, getIteratee(iteratee, 2), true); - } - - /** - * This method is like `_.lastIndexOf` except that it performs a binary - * search on a sorted `array`. - * - * @static - * @memberOf _ - * @since 4.0.0 - * @category Array - * @param {Array} array The array to inspect. - * @param {*} value The value to search for. - * @returns {number} Returns the index of the matched value, else `-1`. - * @example - * - * _.sortedLastIndexOf([4, 5, 5, 5, 6], 5); - * // => 3 - */ - function sortedLastIndexOf(array, value) { - var length = array ? array.length : 0; - if (length) { - var index = baseSortedIndex(array, value, true) - 1; - if (eq(array[index], value)) { - return index; - } - } - return -1; - } - - /** - * This method is like `_.uniq` except that it's designed and optimized - * for sorted arrays. - * - * @static - * @memberOf _ - * @since 4.0.0 - * @category Array - * @param {Array} array The array to inspect. - * @returns {Array} Returns the new duplicate free array. - * @example - * - * _.sortedUniq([1, 1, 2]); - * // => [1, 2] - */ - function sortedUniq(array) { - return (array && array.length) - ? baseSortedUniq(array) - : []; - } - - /** - * This method is like `_.uniqBy` except that it's designed and optimized - * for sorted arrays. - * - * @static - * @memberOf _ - * @since 4.0.0 - * @category Array - * @param {Array} array The array to inspect. - * @param {Function} [iteratee] The iteratee invoked per element. - * @returns {Array} Returns the new duplicate free array. - * @example - * - * _.sortedUniqBy([1.1, 1.2, 2.3, 2.4], Math.floor); - * // => [1.1, 2.3] - */ - function sortedUniqBy(array, iteratee) { - return (array && array.length) - ? baseSortedUniq(array, getIteratee(iteratee, 2)) - : []; - } - - /** - * Gets all but the first element of `array`. - * - * @static - * @memberOf _ - * @since 4.0.0 - * @category Array - * @param {Array} array The array to query. - * @returns {Array} Returns the slice of `array`. - * @example - * - * _.tail([1, 2, 3]); - * // => [2, 3] - */ - function tail(array) { - var length = array ? array.length : 0; - return length ? baseSlice(array, 1, length) : []; - } - - /** - * Creates a slice of `array` with `n` elements taken from the beginning. - * - * @static - * @memberOf _ - * @since 0.1.0 - * @category Array - * @param {Array} array The array to query. - * @param {number} [n=1] The number of elements to take. - * @param- {Object} [guard] Enables use as an iteratee for methods like `_.map`. - * @returns {Array} Returns the slice of `array`. - * @example - * - * _.take([1, 2, 3]); - * // => [1] - * - * _.take([1, 2, 3], 2); - * // => [1, 2] - * - * _.take([1, 2, 3], 5); - * // => [1, 2, 3] - * - * _.take([1, 2, 3], 0); - * // => [] - */ - function take(array, n, guard) { - if (!(array && array.length)) { - return []; - } - n = (guard || n === undefined) ? 1 : toInteger(n); - return baseSlice(array, 0, n < 0 ? 0 : n); - } - - /** - * Creates a slice of `array` with `n` elements taken from the end. - * - * @static - * @memberOf _ - * @since 3.0.0 - * @category Array - * @param {Array} array The array to query. - * @param {number} [n=1] The number of elements to take. - * @param- {Object} [guard] Enables use as an iteratee for methods like `_.map`. - * @returns {Array} Returns the slice of `array`. - * @example - * - * _.takeRight([1, 2, 3]); - * // => [3] - * - * _.takeRight([1, 2, 3], 2); - * // => [2, 3] - * - * _.takeRight([1, 2, 3], 5); - * // => [1, 2, 3] - * - * _.takeRight([1, 2, 3], 0); - * // => [] - */ - function takeRight(array, n, guard) { - var length = array ? array.length : 0; - if (!length) { - return []; - } - n = (guard || n === undefined) ? 1 : toInteger(n); - n = length - n; - return baseSlice(array, n < 0 ? 0 : n, length); - } - - /** - * Creates a slice of `array` with elements taken from the end. Elements are - * taken until `predicate` returns falsey. The predicate is invoked with - * three arguments: (value, index, array). - * - * @static - * @memberOf _ - * @since 3.0.0 - * @category Array - * @param {Array} array The array to query. - * @param {Function} [predicate=_.identity] - * The function invoked per iteration. - * @returns {Array} Returns the slice of `array`. - * @example - * - * var users = [ - * { 'user': 'barney', 'active': true }, - * { 'user': 'fred', 'active': false }, - * { 'user': 'pebbles', 'active': false } - * ]; - * - * _.takeRightWhile(users, function(o) { return !o.active; }); - * // => objects for ['fred', 'pebbles'] - * - * // The `_.matches` iteratee shorthand. - * _.takeRightWhile(users, { 'user': 'pebbles', 'active': false }); - * // => objects for ['pebbles'] - * - * // The `_.matchesProperty` iteratee shorthand. - * _.takeRightWhile(users, ['active', false]); - * // => objects for ['fred', 'pebbles'] - * - * // The `_.property` iteratee shorthand. - * _.takeRightWhile(users, 'active'); - * // => [] - */ - function takeRightWhile(array, predicate) { - return (array && array.length) - ? baseWhile(array, getIteratee(predicate, 3), false, true) - : []; - } - - /** - * Creates a slice of `array` with elements taken from the beginning. Elements - * are taken until `predicate` returns falsey. The predicate is invoked with - * three arguments: (value, index, array). - * - * @static - * @memberOf _ - * @since 3.0.0 - * @category Array - * @param {Array} array The array to query. - * @param {Function} [predicate=_.identity] - * The function invoked per iteration. - * @returns {Array} Returns the slice of `array`. - * @example - * - * var users = [ - * { 'user': 'barney', 'active': false }, - * { 'user': 'fred', 'active': false}, - * { 'user': 'pebbles', 'active': true } - * ]; - * - * _.takeWhile(users, function(o) { return !o.active; }); - * // => objects for ['barney', 'fred'] - * - * // The `_.matches` iteratee shorthand. - * _.takeWhile(users, { 'user': 'barney', 'active': false }); - * // => objects for ['barney'] - * - * // The `_.matchesProperty` iteratee shorthand. - * _.takeWhile(users, ['active', false]); - * // => objects for ['barney', 'fred'] - * - * // The `_.property` iteratee shorthand. - * _.takeWhile(users, 'active'); - * // => [] - */ - function takeWhile(array, predicate) { - return (array && array.length) - ? baseWhile(array, getIteratee(predicate, 3)) - : []; - } - - /** - * Creates an array of unique values, in order, from all given arrays using - * [`SameValueZero`](http://ecma-international.org/ecma-262/7.0/#sec-samevaluezero) - * for equality comparisons. - * - * @static - * @memberOf _ - * @since 0.1.0 - * @category Array - * @param {...Array} [arrays] The arrays to inspect. - * @returns {Array} Returns the new array of combined values. - * @example - * - * _.union([2], [1, 2]); - * // => [2, 1] - */ - var union = baseRest(function(arrays) { - return baseUniq(baseFlatten(arrays, 1, isArrayLikeObject, true)); - }); - - /** - * This method is like `_.union` except that it accepts `iteratee` which is - * invoked for each element of each `arrays` to generate the criterion by - * which uniqueness is computed. Result values are chosen from the first - * array in which the value occurs. The iteratee is invoked with one argument: - * (value). - * - * @static - * @memberOf _ - * @since 4.0.0 - * @category Array - * @param {...Array} [arrays] The arrays to inspect. - * @param {Function} [iteratee=_.identity] - * The iteratee invoked per element. - * @returns {Array} Returns the new array of combined values. - * @example - * - * _.unionBy([2.1], [1.2, 2.3], Math.floor); - * // => [2.1, 1.2] - * - * // The `_.property` iteratee shorthand. - * _.unionBy([{ 'x': 1 }], [{ 'x': 2 }, { 'x': 1 }], 'x'); - * // => [{ 'x': 1 }, { 'x': 2 }] - */ - var unionBy = baseRest(function(arrays) { - var iteratee = last(arrays); - if (isArrayLikeObject(iteratee)) { - iteratee = undefined; - } - return baseUniq(baseFlatten(arrays, 1, isArrayLikeObject, true), getIteratee(iteratee, 2)); - }); - - /** - * This method is like `_.union` except that it accepts `comparator` which - * is invoked to compare elements of `arrays`. Result values are chosen from - * the first array in which the value occurs. The comparator is invoked - * with two arguments: (arrVal, othVal). - * - * @static - * @memberOf _ - * @since 4.0.0 - * @category Array - * @param {...Array} [arrays] The arrays to inspect. - * @param {Function} [comparator] The comparator invoked per element. - * @returns {Array} Returns the new array of combined values. - * @example - * - * var objects = [{ 'x': 1, 'y': 2 }, { 'x': 2, 'y': 1 }]; - * var others = [{ 'x': 1, 'y': 1 }, { 'x': 1, 'y': 2 }]; - * - * _.unionWith(objects, others, _.isEqual); - * // => [{ 'x': 1, 'y': 2 }, { 'x': 2, 'y': 1 }, { 'x': 1, 'y': 1 }] - */ - var unionWith = baseRest(function(arrays) { - var comparator = last(arrays); - if (isArrayLikeObject(comparator)) { - comparator = undefined; - } - return baseUniq(baseFlatten(arrays, 1, isArrayLikeObject, true), undefined, comparator); - }); - - /** - * Creates a duplicate-free version of an array, using - * [`SameValueZero`](http://ecma-international.org/ecma-262/7.0/#sec-samevaluezero) - * for equality comparisons, in which only the first occurrence of each - * element is kept. - * - * @static - * @memberOf _ - * @since 0.1.0 - * @category Array - * @param {Array} array The array to inspect. - * @returns {Array} Returns the new duplicate free array. - * @example - * - * _.uniq([2, 1, 2]); - * // => [2, 1] - */ - function uniq(array) { - return (array && array.length) - ? baseUniq(array) - : []; - } - - /** - * This method is like `_.uniq` except that it accepts `iteratee` which is - * invoked for each element in `array` to generate the criterion by which - * uniqueness is computed. The iteratee is invoked with one argument: (value). - * - * @static - * @memberOf _ - * @since 4.0.0 - * @category Array - * @param {Array} array The array to inspect. - * @param {Function} [iteratee=_.identity] - * The iteratee invoked per element. - * @returns {Array} Returns the new duplicate free array. - * @example - * - * _.uniqBy([2.1, 1.2, 2.3], Math.floor); - * // => [2.1, 1.2] - * - * // The `_.property` iteratee shorthand. - * _.uniqBy([{ 'x': 1 }, { 'x': 2 }, { 'x': 1 }], 'x'); - * // => [{ 'x': 1 }, { 'x': 2 }] - */ - function uniqBy(array, iteratee) { - return (array && array.length) - ? baseUniq(array, getIteratee(iteratee, 2)) - : []; - } - - /** - * This method is like `_.uniq` except that it accepts `comparator` which - * is invoked to compare elements of `array`. The comparator is invoked with - * two arguments: (arrVal, othVal). - * - * @static - * @memberOf _ - * @since 4.0.0 - * @category Array - * @param {Array} array The array to inspect. - * @param {Function} [comparator] The comparator invoked per element. - * @returns {Array} Returns the new duplicate free array. - * @example - * - * var objects = [{ 'x': 1, 'y': 2 }, { 'x': 2, 'y': 1 }, { 'x': 1, 'y': 2 }]; - * - * _.uniqWith(objects, _.isEqual); - * // => [{ 'x': 1, 'y': 2 }, { 'x': 2, 'y': 1 }] - */ - function uniqWith(array, comparator) { - return (array && array.length) - ? baseUniq(array, undefined, comparator) - : []; - } - - /** - * This method is like `_.zip` except that it accepts an array of grouped - * elements and creates an array regrouping the elements to their pre-zip - * configuration. - * - * @static - * @memberOf _ - * @since 1.2.0 - * @category Array - * @param {Array} array The array of grouped elements to process. - * @returns {Array} Returns the new array of regrouped elements. - * @example - * - * var zipped = _.zip(['a', 'b'], [1, 2], [true, false]); - * // => [['a', 1, true], ['b', 2, false]] - * - * _.unzip(zipped); - * // => [['a', 'b'], [1, 2], [true, false]] - */ - function unzip(array) { - if (!(array && array.length)) { - return []; - } - var length = 0; - array = arrayFilter(array, function(group) { - if (isArrayLikeObject(group)) { - length = nativeMax(group.length, length); - return true; - } - }); - return baseTimes(length, function(index) { - return arrayMap(array, baseProperty(index)); - }); - } - - /** - * This method is like `_.unzip` except that it accepts `iteratee` to specify - * how regrouped values should be combined. The iteratee is invoked with the - * elements of each group: (...group). - * - * @static - * @memberOf _ - * @since 3.8.0 - * @category Array - * @param {Array} array The array of grouped elements to process. - * @param {Function} [iteratee=_.identity] The function to combine - * regrouped values. - * @returns {Array} Returns the new array of regrouped elements. - * @example - * - * var zipped = _.zip([1, 2], [10, 20], [100, 200]); - * // => [[1, 10, 100], [2, 20, 200]] - * - * _.unzipWith(zipped, _.add); - * // => [3, 30, 300] - */ - function unzipWith(array, iteratee) { - if (!(array && array.length)) { - return []; - } - var result = unzip(array); - if (iteratee == null) { - return result; - } - return arrayMap(result, function(group) { - return apply(iteratee, undefined, group); - }); - } - - /** - * Creates an array excluding all given values using - * [`SameValueZero`](http://ecma-international.org/ecma-262/7.0/#sec-samevaluezero) - * for equality comparisons. - * - * **Note:** Unlike `_.pull`, this method returns a new array. - * - * @static - * @memberOf _ - * @since 0.1.0 - * @category Array - * @param {Array} array The array to inspect. - * @param {...*} [values] The values to exclude. - * @returns {Array} Returns the new array of filtered values. - * @see _.difference, _.xor - * @example - * - * _.without([2, 1, 2, 3], 1, 2); - * // => [3] - */ - var without = baseRest(function(array, values) { - return isArrayLikeObject(array) - ? baseDifference(array, values) - : []; - }); - - /** - * Creates an array of unique values that is the - * [symmetric difference](https://en.wikipedia.org/wiki/Symmetric_difference) - * of the given arrays. The order of result values is determined by the order - * they occur in the arrays. - * - * @static - * @memberOf _ - * @since 2.4.0 - * @category Array - * @param {...Array} [arrays] The arrays to inspect. - * @returns {Array} Returns the new array of filtered values. - * @see _.difference, _.without - * @example - * - * _.xor([2, 1], [2, 3]); - * // => [1, 3] - */ - var xor = baseRest(function(arrays) { - return baseXor(arrayFilter(arrays, isArrayLikeObject)); - }); - - /** - * This method is like `_.xor` except that it accepts `iteratee` which is - * invoked for each element of each `arrays` to generate the criterion by - * which by which they're compared. The iteratee is invoked with one argument: - * (value). - * - * @static - * @memberOf _ - * @since 4.0.0 - * @category Array - * @param {...Array} [arrays] The arrays to inspect. - * @param {Function} [iteratee=_.identity] - * The iteratee invoked per element. - * @returns {Array} Returns the new array of filtered values. - * @example - * - * _.xorBy([2.1, 1.2], [2.3, 3.4], Math.floor); - * // => [1.2, 3.4] - * - * // The `_.property` iteratee shorthand. - * _.xorBy([{ 'x': 1 }], [{ 'x': 2 }, { 'x': 1 }], 'x'); - * // => [{ 'x': 2 }] - */ - var xorBy = baseRest(function(arrays) { - var iteratee = last(arrays); - if (isArrayLikeObject(iteratee)) { - iteratee = undefined; - } - return baseXor(arrayFilter(arrays, isArrayLikeObject), getIteratee(iteratee, 2)); - }); - - /** - * This method is like `_.xor` except that it accepts `comparator` which is - * invoked to compare elements of `arrays`. The comparator is invoked with - * two arguments: (arrVal, othVal). - * - * @static - * @memberOf _ - * @since 4.0.0 - * @category Array - * @param {...Array} [arrays] The arrays to inspect. - * @param {Function} [comparator] The comparator invoked per element. - * @returns {Array} Returns the new array of filtered values. - * @example - * - * var objects = [{ 'x': 1, 'y': 2 }, { 'x': 2, 'y': 1 }]; - * var others = [{ 'x': 1, 'y': 1 }, { 'x': 1, 'y': 2 }]; - * - * _.xorWith(objects, others, _.isEqual); - * // => [{ 'x': 2, 'y': 1 }, { 'x': 1, 'y': 1 }] - */ - var xorWith = baseRest(function(arrays) { - var comparator = last(arrays); - if (isArrayLikeObject(comparator)) { - comparator = undefined; - } - return baseXor(arrayFilter(arrays, isArrayLikeObject), undefined, comparator); - }); - - /** - * Creates an array of grouped elements, the first of which contains the - * first elements of the given arrays, the second of which contains the - * second elements of the given arrays, and so on. - * - * @static - * @memberOf _ - * @since 0.1.0 - * @category Array - * @param {...Array} [arrays] The arrays to process. - * @returns {Array} Returns the new array of grouped elements. - * @example - * - * _.zip(['a', 'b'], [1, 2], [true, false]); - * // => [['a', 1, true], ['b', 2, false]] - */ - var zip = baseRest(unzip); - - /** - * This method is like `_.fromPairs` except that it accepts two arrays, - * one of property identifiers and one of corresponding values. - * - * @static - * @memberOf _ - * @since 0.4.0 - * @category Array - * @param {Array} [props=[]] The property identifiers. - * @param {Array} [values=[]] The property values. - * @returns {Object} Returns the new object. - * @example - * - * _.zipObject(['a', 'b'], [1, 2]); - * // => { 'a': 1, 'b': 2 } - */ - function zipObject(props, values) { - return baseZipObject(props || [], values || [], assignValue); - } - - /** - * This method is like `_.zipObject` except that it supports property paths. - * - * @static - * @memberOf _ - * @since 4.1.0 - * @category Array - * @param {Array} [props=[]] The property identifiers. - * @param {Array} [values=[]] The property values. - * @returns {Object} Returns the new object. - * @example - * - * _.zipObjectDeep(['a.b[0].c', 'a.b[1].d'], [1, 2]); - * // => { 'a': { 'b': [{ 'c': 1 }, { 'd': 2 }] } } - */ - function zipObjectDeep(props, values) { - return baseZipObject(props || [], values || [], baseSet); - } - - /** - * This method is like `_.zip` except that it accepts `iteratee` to specify - * how grouped values should be combined. The iteratee is invoked with the - * elements of each group: (...group). - * - * @static - * @memberOf _ - * @since 3.8.0 - * @category Array - * @param {...Array} [arrays] The arrays to process. - * @param {Function} [iteratee=_.identity] The function to combine grouped values. - * @returns {Array} Returns the new array of grouped elements. - * @example - * - * _.zipWith([1, 2], [10, 20], [100, 200], function(a, b, c) { - * return a + b + c; - * }); - * // => [111, 222] - */ - var zipWith = baseRest(function(arrays) { - var length = arrays.length, - iteratee = length > 1 ? arrays[length - 1] : undefined; - - iteratee = typeof iteratee == 'function' ? (arrays.pop(), iteratee) : undefined; - return unzipWith(arrays, iteratee); - }); - - /*------------------------------------------------------------------------*/ - - /** - * Creates a `lodash` wrapper instance that wraps `value` with explicit method - * chain sequences enabled. The result of such sequences must be unwrapped - * with `_#value`. - * - * @static - * @memberOf _ - * @since 1.3.0 - * @category Seq - * @param {*} value The value to wrap. - * @returns {Object} Returns the new `lodash` wrapper instance. - * @example - * - * var users = [ - * { 'user': 'barney', 'age': 36 }, - * { 'user': 'fred', 'age': 40 }, - * { 'user': 'pebbles', 'age': 1 } - * ]; - * - * var youngest = _ - * .chain(users) - * .sortBy('age') - * .map(function(o) { - * return o.user + ' is ' + o.age; - * }) - * .head() - * .value(); - * // => 'pebbles is 1' - */ - function chain(value) { - var result = lodash(value); - result.__chain__ = true; - return result; - } - - /** - * This method invokes `interceptor` and returns `value`. The interceptor - * is invoked with one argument; (value). The purpose of this method is to - * "tap into" a method chain sequence in order to modify intermediate results. - * - * @static - * @memberOf _ - * @since 0.1.0 - * @category Seq - * @param {*} value The value to provide to `interceptor`. - * @param {Function} interceptor The function to invoke. - * @returns {*} Returns `value`. - * @example - * - * _([1, 2, 3]) - * .tap(function(array) { - * // Mutate input array. - * array.pop(); - * }) - * .reverse() - * .value(); - * // => [2, 1] - */ - function tap(value, interceptor) { - interceptor(value); - return value; - } - - /** - * This method is like `_.tap` except that it returns the result of `interceptor`. - * The purpose of this method is to "pass thru" values replacing intermediate - * results in a method chain sequence. - * - * @static - * @memberOf _ - * @since 3.0.0 - * @category Seq - * @param {*} value The value to provide to `interceptor`. - * @param {Function} interceptor The function to invoke. - * @returns {*} Returns the result of `interceptor`. - * @example - * - * _(' abc ') - * .chain() - * .trim() - * .thru(function(value) { - * return [value]; - * }) - * .value(); - * // => ['abc'] - */ - function thru(value, interceptor) { - return interceptor(value); - } - - /** - * This method is the wrapper version of `_.at`. - * - * @name at - * @memberOf _ - * @since 1.0.0 - * @category Seq - * @param {...(string|string[])} [paths] The property paths of elements to pick. - * @returns {Object} Returns the new `lodash` wrapper instance. - * @example - * - * var object = { 'a': [{ 'b': { 'c': 3 } }, 4] }; - * - * _(object).at(['a[0].b.c', 'a[1]']).value(); - * // => [3, 4] - */ - var wrapperAt = baseRest(function(paths) { - paths = baseFlatten(paths, 1); - var length = paths.length, - start = length ? paths[0] : 0, - value = this.__wrapped__, - interceptor = function(object) { return baseAt(object, paths); }; - - if (length > 1 || this.__actions__.length || - !(value instanceof LazyWrapper) || !isIndex(start)) { - return this.thru(interceptor); - } - value = value.slice(start, +start + (length ? 1 : 0)); - value.__actions__.push({ - 'func': thru, - 'args': [interceptor], - 'thisArg': undefined - }); - return new LodashWrapper(value, this.__chain__).thru(function(array) { - if (length && !array.length) { - array.push(undefined); - } - return array; - }); - }); - - /** - * Creates a `lodash` wrapper instance with explicit method chain sequences enabled. - * - * @name chain - * @memberOf _ - * @since 0.1.0 - * @category Seq - * @returns {Object} Returns the new `lodash` wrapper instance. - * @example - * - * var users = [ - * { 'user': 'barney', 'age': 36 }, - * { 'user': 'fred', 'age': 40 } - * ]; - * - * // A sequence without explicit chaining. - * _(users).head(); - * // => { 'user': 'barney', 'age': 36 } - * - * // A sequence with explicit chaining. - * _(users) - * .chain() - * .head() - * .pick('user') - * .value(); - * // => { 'user': 'barney' } - */ - function wrapperChain() { - return chain(this); - } - - /** - * Executes the chain sequence and returns the wrapped result. - * - * @name commit - * @memberOf _ - * @since 3.2.0 - * @category Seq - * @returns {Object} Returns the new `lodash` wrapper instance. - * @example - * - * var array = [1, 2]; - * var wrapped = _(array).push(3); - * - * console.log(array); - * // => [1, 2] - * - * wrapped = wrapped.commit(); - * console.log(array); - * // => [1, 2, 3] - * - * wrapped.last(); - * // => 3 - * - * console.log(array); - * // => [1, 2, 3] - */ - function wrapperCommit() { - return new LodashWrapper(this.value(), this.__chain__); - } - - /** - * Gets the next value on a wrapped object following the - * [iterator protocol](https://mdn.io/iteration_protocols#iterator). - * - * @name next - * @memberOf _ - * @since 4.0.0 - * @category Seq - * @returns {Object} Returns the next iterator value. - * @example - * - * var wrapped = _([1, 2]); - * - * wrapped.next(); - * // => { 'done': false, 'value': 1 } - * - * wrapped.next(); - * // => { 'done': false, 'value': 2 } - * - * wrapped.next(); - * // => { 'done': true, 'value': undefined } - */ - function wrapperNext() { - if (this.__values__ === undefined) { - this.__values__ = toArray(this.value()); - } - var done = this.__index__ >= this.__values__.length, - value = done ? undefined : this.__values__[this.__index__++]; - - return { 'done': done, 'value': value }; - } - - /** - * Enables the wrapper to be iterable. - * - * @name Symbol.iterator - * @memberOf _ - * @since 4.0.0 - * @category Seq - * @returns {Object} Returns the wrapper object. - * @example - * - * var wrapped = _([1, 2]); - * - * wrapped[Symbol.iterator]() === wrapped; - * // => true - * - * Array.from(wrapped); - * // => [1, 2] - */ - function wrapperToIterator() { - return this; - } - - /** - * Creates a clone of the chain sequence planting `value` as the wrapped value. - * - * @name plant - * @memberOf _ - * @since 3.2.0 - * @category Seq - * @param {*} value The value to plant. - * @returns {Object} Returns the new `lodash` wrapper instance. - * @example - * - * function square(n) { - * return n * n; - * } - * - * var wrapped = _([1, 2]).map(square); - * var other = wrapped.plant([3, 4]); - * - * other.value(); - * // => [9, 16] - * - * wrapped.value(); - * // => [1, 4] - */ - function wrapperPlant(value) { - var result, - parent = this; - - while (parent instanceof baseLodash) { - var clone = wrapperClone(parent); - clone.__index__ = 0; - clone.__values__ = undefined; - if (result) { - previous.__wrapped__ = clone; - } else { - result = clone; - } - var previous = clone; - parent = parent.__wrapped__; - } - previous.__wrapped__ = value; - return result; - } - - /** - * This method is the wrapper version of `_.reverse`. - * - * **Note:** This method mutates the wrapped array. - * - * @name reverse - * @memberOf _ - * @since 0.1.0 - * @category Seq - * @returns {Object} Returns the new `lodash` wrapper instance. - * @example - * - * var array = [1, 2, 3]; - * - * _(array).reverse().value() - * // => [3, 2, 1] - * - * console.log(array); - * // => [3, 2, 1] - */ - function wrapperReverse() { - var value = this.__wrapped__; - if (value instanceof LazyWrapper) { - var wrapped = value; - if (this.__actions__.length) { - wrapped = new LazyWrapper(this); - } - wrapped = wrapped.reverse(); - wrapped.__actions__.push({ - 'func': thru, - 'args': [reverse], - 'thisArg': undefined - }); - return new LodashWrapper(wrapped, this.__chain__); - } - return this.thru(reverse); - } - - /** - * Executes the chain sequence to resolve the unwrapped value. - * - * @name value - * @memberOf _ - * @since 0.1.0 - * @alias toJSON, valueOf - * @category Seq - * @returns {*} Returns the resolved unwrapped value. - * @example - * - * _([1, 2, 3]).value(); - * // => [1, 2, 3] - */ - function wrapperValue() { - return baseWrapperValue(this.__wrapped__, this.__actions__); - } - - /*------------------------------------------------------------------------*/ - - /** - * Creates an object composed of keys generated from the results of running - * each element of `collection` thru `iteratee`. The corresponding value of - * each key is the number of times the key was returned by `iteratee`. The - * iteratee is invoked with one argument: (value). - * - * @static - * @memberOf _ - * @since 0.5.0 - * @category Collection - * @param {Array|Object} collection The collection to iterate over. - * @param {Function} [iteratee=_.identity] - * The iteratee to transform keys. - * @returns {Object} Returns the composed aggregate object. - * @example - * - * _.countBy([6.1, 4.2, 6.3], Math.floor); - * // => { '4': 1, '6': 2 } - * - * // The `_.property` iteratee shorthand. - * _.countBy(['one', 'two', 'three'], 'length'); - * // => { '3': 2, '5': 1 } - */ - var countBy = createAggregator(function(result, value, key) { - hasOwnProperty.call(result, key) ? ++result[key] : (result[key] = 1); - }); - - /** - * Checks if `predicate` returns truthy for **all** elements of `collection`. - * Iteration is stopped once `predicate` returns falsey. The predicate is - * invoked with three arguments: (value, index|key, collection). - * - * **Note:** This method returns `true` for - * [empty collections](https://en.wikipedia.org/wiki/Empty_set) because - * [everything is true](https://en.wikipedia.org/wiki/Vacuous_truth) of - * elements of empty collections. - * - * @static - * @memberOf _ - * @since 0.1.0 - * @category Collection - * @param {Array|Object} collection The collection to iterate over. - * @param {Function} [predicate=_.identity] - * The function invoked per iteration. - * @param- {Object} [guard] Enables use as an iteratee for methods like `_.map`. - * @returns {boolean} Returns `true` if all elements pass the predicate check, - * else `false`. - * @example - * - * _.every([true, 1, null, 'yes'], Boolean); - * // => false - * - * var users = [ - * { 'user': 'barney', 'age': 36, 'active': false }, - * { 'user': 'fred', 'age': 40, 'active': false } - * ]; - * - * // The `_.matches` iteratee shorthand. - * _.every(users, { 'user': 'barney', 'active': false }); - * // => false - * - * // The `_.matchesProperty` iteratee shorthand. - * _.every(users, ['active', false]); - * // => true - * - * // The `_.property` iteratee shorthand. - * _.every(users, 'active'); - * // => false - */ - function every(collection, predicate, guard) { - var func = isArray(collection) ? arrayEvery : baseEvery; - if (guard && isIterateeCall(collection, predicate, guard)) { - predicate = undefined; - } - return func(collection, getIteratee(predicate, 3)); - } - - /** - * Iterates over elements of `collection`, returning an array of all elements - * `predicate` returns truthy for. The predicate is invoked with three - * arguments: (value, index|key, collection). - * - * **Note:** Unlike `_.remove`, this method returns a new array. - * - * @static - * @memberOf _ - * @since 0.1.0 - * @category Collection - * @param {Array|Object} collection The collection to iterate over. - * @param {Function} [predicate=_.identity] - * The function invoked per iteration. - * @returns {Array} Returns the new filtered array. - * @see _.reject - * @example - * - * var users = [ - * { 'user': 'barney', 'age': 36, 'active': true }, - * { 'user': 'fred', 'age': 40, 'active': false } - * ]; - * - * _.filter(users, function(o) { return !o.active; }); - * // => objects for ['fred'] - * - * // The `_.matches` iteratee shorthand. - * _.filter(users, { 'age': 36, 'active': true }); - * // => objects for ['barney'] - * - * // The `_.matchesProperty` iteratee shorthand. - * _.filter(users, ['active', false]); - * // => objects for ['fred'] - * - * // The `_.property` iteratee shorthand. - * _.filter(users, 'active'); - * // => objects for ['barney'] - */ - function filter(collection, predicate) { - var func = isArray(collection) ? arrayFilter : baseFilter; - return func(collection, getIteratee(predicate, 3)); - } - - /** - * Iterates over elements of `collection`, returning the first element - * `predicate` returns truthy for. The predicate is invoked with three - * arguments: (value, index|key, collection). - * - * @static - * @memberOf _ - * @since 0.1.0 - * @category Collection - * @param {Array|Object} collection The collection to inspect. - * @param {Function} [predicate=_.identity] - * The function invoked per iteration. - * @param {number} [fromIndex=0] The index to search from. - * @returns {*} Returns the matched element, else `undefined`. - * @example - * - * var users = [ - * { 'user': 'barney', 'age': 36, 'active': true }, - * { 'user': 'fred', 'age': 40, 'active': false }, - * { 'user': 'pebbles', 'age': 1, 'active': true } - * ]; - * - * _.find(users, function(o) { return o.age < 40; }); - * // => object for 'barney' - * - * // The `_.matches` iteratee shorthand. - * _.find(users, { 'age': 1, 'active': true }); - * // => object for 'pebbles' - * - * // The `_.matchesProperty` iteratee shorthand. - * _.find(users, ['active', false]); - * // => object for 'fred' - * - * // The `_.property` iteratee shorthand. - * _.find(users, 'active'); - * // => object for 'barney' - */ - var find = createFind(findIndex); - - /** - * This method is like `_.find` except that it iterates over elements of - * `collection` from right to left. - * - * @static - * @memberOf _ - * @since 2.0.0 - * @category Collection - * @param {Array|Object} collection The collection to inspect. - * @param {Function} [predicate=_.identity] - * The function invoked per iteration. - * @param {number} [fromIndex=collection.length-1] The index to search from. - * @returns {*} Returns the matched element, else `undefined`. - * @example - * - * _.findLast([1, 2, 3, 4], function(n) { - * return n % 2 == 1; - * }); - * // => 3 - */ - var findLast = createFind(findLastIndex); - - /** - * Creates a flattened array of values by running each element in `collection` - * thru `iteratee` and flattening the mapped results. The iteratee is invoked - * with three arguments: (value, index|key, collection). - * - * @static - * @memberOf _ - * @since 4.0.0 - * @category Collection - * @param {Array|Object} collection The collection to iterate over. - * @param {Function} [iteratee=_.identity] - * The function invoked per iteration. - * @returns {Array} Returns the new flattened array. - * @example - * - * function duplicate(n) { - * return [n, n]; - * } - * - * _.flatMap([1, 2], duplicate); - * // => [1, 1, 2, 2] - */ - function flatMap(collection, iteratee) { - return baseFlatten(map(collection, iteratee), 1); - } - - /** - * This method is like `_.flatMap` except that it recursively flattens the - * mapped results. - * - * @static - * @memberOf _ - * @since 4.7.0 - * @category Collection - * @param {Array|Object} collection The collection to iterate over. - * @param {Function} [iteratee=_.identity] - * The function invoked per iteration. - * @returns {Array} Returns the new flattened array. - * @example - * - * function duplicate(n) { - * return [[[n, n]]]; - * } - * - * _.flatMapDeep([1, 2], duplicate); - * // => [1, 1, 2, 2] - */ - function flatMapDeep(collection, iteratee) { - return baseFlatten(map(collection, iteratee), INFINITY); - } - - /** - * This method is like `_.flatMap` except that it recursively flattens the - * mapped results up to `depth` times. - * - * @static - * @memberOf _ - * @since 4.7.0 - * @category Collection - * @param {Array|Object} collection The collection to iterate over. - * @param {Function} [iteratee=_.identity] - * The function invoked per iteration. - * @param {number} [depth=1] The maximum recursion depth. - * @returns {Array} Returns the new flattened array. - * @example - * - * function duplicate(n) { - * return [[[n, n]]]; - * } - * - * _.flatMapDepth([1, 2], duplicate, 2); - * // => [[1, 1], [2, 2]] - */ - function flatMapDepth(collection, iteratee, depth) { - depth = depth === undefined ? 1 : toInteger(depth); - return baseFlatten(map(collection, iteratee), depth); - } - - /** - * Iterates over elements of `collection` and invokes `iteratee` for each element. - * The iteratee is invoked with three arguments: (value, index|key, collection). - * Iteratee functions may exit iteration early by explicitly returning `false`. - * - * **Note:** As with other "Collections" methods, objects with a "length" - * property are iterated like arrays. To avoid this behavior use `_.forIn` - * or `_.forOwn` for object iteration. - * - * @static - * @memberOf _ - * @since 0.1.0 - * @alias each - * @category Collection - * @param {Array|Object} collection The collection to iterate over. - * @param {Function} [iteratee=_.identity] The function invoked per iteration. - * @returns {Array|Object} Returns `collection`. - * @see _.forEachRight - * @example - * - * _([1, 2]).forEach(function(value) { - * console.log(value); - * }); - * // => Logs `1` then `2`. - * - * _.forEach({ 'a': 1, 'b': 2 }, function(value, key) { - * console.log(key); - * }); - * // => Logs 'a' then 'b' (iteration order is not guaranteed). - */ - function forEach(collection, iteratee) { - var func = isArray(collection) ? arrayEach : baseEach; - return func(collection, getIteratee(iteratee, 3)); - } - - /** - * This method is like `_.forEach` except that it iterates over elements of - * `collection` from right to left. - * - * @static - * @memberOf _ - * @since 2.0.0 - * @alias eachRight - * @category Collection - * @param {Array|Object} collection The collection to iterate over. - * @param {Function} [iteratee=_.identity] The function invoked per iteration. - * @returns {Array|Object} Returns `collection`. - * @see _.forEach - * @example - * - * _.forEachRight([1, 2], function(value) { - * console.log(value); - * }); - * // => Logs `2` then `1`. - */ - function forEachRight(collection, iteratee) { - var func = isArray(collection) ? arrayEachRight : baseEachRight; - return func(collection, getIteratee(iteratee, 3)); - } - - /** - * Creates an object composed of keys generated from the results of running - * each element of `collection` thru `iteratee`. The order of grouped values - * is determined by the order they occur in `collection`. The corresponding - * value of each key is an array of elements responsible for generating the - * key. The iteratee is invoked with one argument: (value). - * - * @static - * @memberOf _ - * @since 0.1.0 - * @category Collection - * @param {Array|Object} collection The collection to iterate over. - * @param {Function} [iteratee=_.identity] - * The iteratee to transform keys. - * @returns {Object} Returns the composed aggregate object. - * @example - * - * _.groupBy([6.1, 4.2, 6.3], Math.floor); - * // => { '4': [4.2], '6': [6.1, 6.3] } - * - * // The `_.property` iteratee shorthand. - * _.groupBy(['one', 'two', 'three'], 'length'); - * // => { '3': ['one', 'two'], '5': ['three'] } - */ - var groupBy = createAggregator(function(result, value, key) { - if (hasOwnProperty.call(result, key)) { - result[key].push(value); - } else { - result[key] = [value]; - } - }); - - /** - * Checks if `value` is in `collection`. If `collection` is a string, it's - * checked for a substring of `value`, otherwise - * [`SameValueZero`](http://ecma-international.org/ecma-262/7.0/#sec-samevaluezero) - * is used for equality comparisons. If `fromIndex` is negative, it's used as - * the offset from the end of `collection`. - * - * @static - * @memberOf _ - * @since 0.1.0 - * @category Collection - * @param {Array|Object|string} collection The collection to inspect. - * @param {*} value The value to search for. - * @param {number} [fromIndex=0] The index to search from. - * @param- {Object} [guard] Enables use as an iteratee for methods like `_.reduce`. - * @returns {boolean} Returns `true` if `value` is found, else `false`. - * @example - * - * _.includes([1, 2, 3], 1); - * // => true - * - * _.includes([1, 2, 3], 1, 2); - * // => false - * - * _.includes({ 'a': 1, 'b': 2 }, 1); - * // => true - * - * _.includes('abcd', 'bc'); - * // => true - */ - function includes(collection, value, fromIndex, guard) { - collection = isArrayLike(collection) ? collection : values(collection); - fromIndex = (fromIndex && !guard) ? toInteger(fromIndex) : 0; - - var length = collection.length; - if (fromIndex < 0) { - fromIndex = nativeMax(length + fromIndex, 0); - } - return isString(collection) - ? (fromIndex <= length && collection.indexOf(value, fromIndex) > -1) - : (!!length && baseIndexOf(collection, value, fromIndex) > -1); - } - - /** - * Invokes the method at `path` of each element in `collection`, returning - * an array of the results of each invoked method. Any additional arguments - * are provided to each invoked method. If `path` is a function, it's invoked - * for, and `this` bound to, each element in `collection`. - * - * @static - * @memberOf _ - * @since 4.0.0 - * @category Collection - * @param {Array|Object} collection The collection to iterate over. - * @param {Array|Function|string} path The path of the method to invoke or - * the function invoked per iteration. - * @param {...*} [args] The arguments to invoke each method with. - * @returns {Array} Returns the array of results. - * @example - * - * _.invokeMap([[5, 1, 7], [3, 2, 1]], 'sort'); - * // => [[1, 5, 7], [1, 2, 3]] - * - * _.invokeMap([123, 456], String.prototype.split, ''); - * // => [['1', '2', '3'], ['4', '5', '6']] - */ - var invokeMap = baseRest(function(collection, path, args) { - var index = -1, - isFunc = typeof path == 'function', - isProp = isKey(path), - result = isArrayLike(collection) ? Array(collection.length) : []; - - baseEach(collection, function(value) { - var func = isFunc ? path : ((isProp && value != null) ? value[path] : undefined); - result[++index] = func ? apply(func, value, args) : baseInvoke(value, path, args); - }); - return result; - }); - - /** - * Creates an object composed of keys generated from the results of running - * each element of `collection` thru `iteratee`. The corresponding value of - * each key is the last element responsible for generating the key. The - * iteratee is invoked with one argument: (value). - * - * @static - * @memberOf _ - * @since 4.0.0 - * @category Collection - * @param {Array|Object} collection The collection to iterate over. - * @param {Function} [iteratee=_.identity] - * The iteratee to transform keys. - * @returns {Object} Returns the composed aggregate object. - * @example - * - * var array = [ - * { 'dir': 'left', 'code': 97 }, - * { 'dir': 'right', 'code': 100 } - * ]; - * - * _.keyBy(array, function(o) { - * return String.fromCharCode(o.code); - * }); - * // => { 'a': { 'dir': 'left', 'code': 97 }, 'd': { 'dir': 'right', 'code': 100 } } - * - * _.keyBy(array, 'dir'); - * // => { 'left': { 'dir': 'left', 'code': 97 }, 'right': { 'dir': 'right', 'code': 100 } } - */ - var keyBy = createAggregator(function(result, value, key) { - result[key] = value; - }); - - /** - * Creates an array of values by running each element in `collection` thru - * `iteratee`. The iteratee is invoked with three arguments: - * (value, index|key, collection). - * - * Many lodash methods are guarded to work as iteratees for methods like - * `_.every`, `_.filter`, `_.map`, `_.mapValues`, `_.reject`, and `_.some`. - * - * The guarded methods are: - * `ary`, `chunk`, `curry`, `curryRight`, `drop`, `dropRight`, `every`, - * `fill`, `invert`, `parseInt`, `random`, `range`, `rangeRight`, `repeat`, - * `sampleSize`, `slice`, `some`, `sortBy`, `split`, `take`, `takeRight`, - * `template`, `trim`, `trimEnd`, `trimStart`, and `words` - * - * @static - * @memberOf _ - * @since 0.1.0 - * @category Collection - * @param {Array|Object} collection The collection to iterate over. - * @param {Function} [iteratee=_.identity] The function invoked per iteration. - * @returns {Array} Returns the new mapped array. - * @example - * - * function square(n) { - * return n * n; - * } - * - * _.map([4, 8], square); - * // => [16, 64] - * - * _.map({ 'a': 4, 'b': 8 }, square); - * // => [16, 64] (iteration order is not guaranteed) - * - * var users = [ - * { 'user': 'barney' }, - * { 'user': 'fred' } - * ]; - * - * // The `_.property` iteratee shorthand. - * _.map(users, 'user'); - * // => ['barney', 'fred'] - */ - function map(collection, iteratee) { - var func = isArray(collection) ? arrayMap : baseMap; - return func(collection, getIteratee(iteratee, 3)); - } - - /** - * This method is like `_.sortBy` except that it allows specifying the sort - * orders of the iteratees to sort by. If `orders` is unspecified, all values - * are sorted in ascending order. Otherwise, specify an order of "desc" for - * descending or "asc" for ascending sort order of corresponding values. - * - * @static - * @memberOf _ - * @since 4.0.0 - * @category Collection - * @param {Array|Object} collection The collection to iterate over. - * @param {Array[]|Function[]|Object[]|string[]} [iteratees=[_.identity]] - * The iteratees to sort by. - * @param {string[]} [orders] The sort orders of `iteratees`. - * @param- {Object} [guard] Enables use as an iteratee for methods like `_.reduce`. - * @returns {Array} Returns the new sorted array. - * @example - * - * var users = [ - * { 'user': 'fred', 'age': 48 }, - * { 'user': 'barney', 'age': 34 }, - * { 'user': 'fred', 'age': 40 }, - * { 'user': 'barney', 'age': 36 } - * ]; - * - * // Sort by `user` in ascending order and by `age` in descending order. - * _.orderBy(users, ['user', 'age'], ['asc', 'desc']); - * // => objects for [['barney', 36], ['barney', 34], ['fred', 48], ['fred', 40]] - */ - function orderBy(collection, iteratees, orders, guard) { - if (collection == null) { - return []; - } - if (!isArray(iteratees)) { - iteratees = iteratees == null ? [] : [iteratees]; - } - orders = guard ? undefined : orders; - if (!isArray(orders)) { - orders = orders == null ? [] : [orders]; - } - return baseOrderBy(collection, iteratees, orders); - } - - /** - * Creates an array of elements split into two groups, the first of which - * contains elements `predicate` returns truthy for, the second of which - * contains elements `predicate` returns falsey for. The predicate is - * invoked with one argument: (value). - * - * @static - * @memberOf _ - * @since 3.0.0 - * @category Collection - * @param {Array|Object} collection The collection to iterate over. - * @param {Function} [predicate=_.identity] The function invoked per iteration. - * @returns {Array} Returns the array of grouped elements. - * @example - * - * var users = [ - * { 'user': 'barney', 'age': 36, 'active': false }, - * { 'user': 'fred', 'age': 40, 'active': true }, - * { 'user': 'pebbles', 'age': 1, 'active': false } - * ]; - * - * _.partition(users, function(o) { return o.active; }); - * // => objects for [['fred'], ['barney', 'pebbles']] - * - * // The `_.matches` iteratee shorthand. - * _.partition(users, { 'age': 1, 'active': false }); - * // => objects for [['pebbles'], ['barney', 'fred']] - * - * // The `_.matchesProperty` iteratee shorthand. - * _.partition(users, ['active', false]); - * // => objects for [['barney', 'pebbles'], ['fred']] - * - * // The `_.property` iteratee shorthand. - * _.partition(users, 'active'); - * // => objects for [['fred'], ['barney', 'pebbles']] - */ - var partition = createAggregator(function(result, value, key) { - result[key ? 0 : 1].push(value); - }, function() { return [[], []]; }); - - /** - * Reduces `collection` to a value which is the accumulated result of running - * each element in `collection` thru `iteratee`, where each successive - * invocation is supplied the return value of the previous. If `accumulator` - * is not given, the first element of `collection` is used as the initial - * value. The iteratee is invoked with four arguments: - * (accumulator, value, index|key, collection). - * - * Many lodash methods are guarded to work as iteratees for methods like - * `_.reduce`, `_.reduceRight`, and `_.transform`. - * - * The guarded methods are: - * `assign`, `defaults`, `defaultsDeep`, `includes`, `merge`, `orderBy`, - * and `sortBy` - * - * @static - * @memberOf _ - * @since 0.1.0 - * @category Collection - * @param {Array|Object} collection The collection to iterate over. - * @param {Function} [iteratee=_.identity] The function invoked per iteration. - * @param {*} [accumulator] The initial value. - * @returns {*} Returns the accumulated value. - * @see _.reduceRight - * @example - * - * _.reduce([1, 2], function(sum, n) { - * return sum + n; - * }, 0); - * // => 3 - * - * _.reduce({ 'a': 1, 'b': 2, 'c': 1 }, function(result, value, key) { - * (result[value] || (result[value] = [])).push(key); - * return result; - * }, {}); - * // => { '1': ['a', 'c'], '2': ['b'] } (iteration order is not guaranteed) - */ - function reduce(collection, iteratee, accumulator) { - var func = isArray(collection) ? arrayReduce : baseReduce, - initAccum = arguments.length < 3; - - return func(collection, getIteratee(iteratee, 4), accumulator, initAccum, baseEach); - } - - /** - * This method is like `_.reduce` except that it iterates over elements of - * `collection` from right to left. - * - * @static - * @memberOf _ - * @since 0.1.0 - * @category Collection - * @param {Array|Object} collection The collection to iterate over. - * @param {Function} [iteratee=_.identity] The function invoked per iteration. - * @param {*} [accumulator] The initial value. - * @returns {*} Returns the accumulated value. - * @see _.reduce - * @example - * - * var array = [[0, 1], [2, 3], [4, 5]]; - * - * _.reduceRight(array, function(flattened, other) { - * return flattened.concat(other); - * }, []); - * // => [4, 5, 2, 3, 0, 1] - */ - function reduceRight(collection, iteratee, accumulator) { - var func = isArray(collection) ? arrayReduceRight : baseReduce, - initAccum = arguments.length < 3; - - return func(collection, getIteratee(iteratee, 4), accumulator, initAccum, baseEachRight); - } - - /** - * The opposite of `_.filter`; this method returns the elements of `collection` - * that `predicate` does **not** return truthy for. - * - * @static - * @memberOf _ - * @since 0.1.0 - * @category Collection - * @param {Array|Object} collection The collection to iterate over. - * @param {Function} [predicate=_.identity] The function invoked per iteration. - * @returns {Array} Returns the new filtered array. - * @see _.filter - * @example - * - * var users = [ - * { 'user': 'barney', 'age': 36, 'active': false }, - * { 'user': 'fred', 'age': 40, 'active': true } - * ]; - * - * _.reject(users, function(o) { return !o.active; }); - * // => objects for ['fred'] - * - * // The `_.matches` iteratee shorthand. - * _.reject(users, { 'age': 40, 'active': true }); - * // => objects for ['barney'] - * - * // The `_.matchesProperty` iteratee shorthand. - * _.reject(users, ['active', false]); - * // => objects for ['fred'] - * - * // The `_.property` iteratee shorthand. - * _.reject(users, 'active'); - * // => objects for ['barney'] - */ - function reject(collection, predicate) { - var func = isArray(collection) ? arrayFilter : baseFilter; - return func(collection, negate(getIteratee(predicate, 3))); - } - - /** - * Gets a random element from `collection`. - * - * @static - * @memberOf _ - * @since 2.0.0 - * @category Collection - * @param {Array|Object} collection The collection to sample. - * @returns {*} Returns the random element. - * @example - * - * _.sample([1, 2, 3, 4]); - * // => 2 - */ - function sample(collection) { - var array = isArrayLike(collection) ? collection : values(collection), - length = array.length; - - return length > 0 ? array[baseRandom(0, length - 1)] : undefined; - } - - /** - * Gets `n` random elements at unique keys from `collection` up to the - * size of `collection`. - * - * @static - * @memberOf _ - * @since 4.0.0 - * @category Collection - * @param {Array|Object} collection The collection to sample. - * @param {number} [n=1] The number of elements to sample. - * @param- {Object} [guard] Enables use as an iteratee for methods like `_.map`. - * @returns {Array} Returns the random elements. - * @example - * - * _.sampleSize([1, 2, 3], 2); - * // => [3, 1] - * - * _.sampleSize([1, 2, 3], 4); - * // => [2, 3, 1] - */ - function sampleSize(collection, n, guard) { - var index = -1, - result = toArray(collection), - length = result.length, - lastIndex = length - 1; - - if ((guard ? isIterateeCall(collection, n, guard) : n === undefined)) { - n = 1; - } else { - n = baseClamp(toInteger(n), 0, length); - } - while (++index < n) { - var rand = baseRandom(index, lastIndex), - value = result[rand]; - - result[rand] = result[index]; - result[index] = value; - } - result.length = n; - return result; - } - - /** - * Creates an array of shuffled values, using a version of the - * [Fisher-Yates shuffle](https://en.wikipedia.org/wiki/Fisher-Yates_shuffle). - * - * @static - * @memberOf _ - * @since 0.1.0 - * @category Collection - * @param {Array|Object} collection The collection to shuffle. - * @returns {Array} Returns the new shuffled array. - * @example - * - * _.shuffle([1, 2, 3, 4]); - * // => [4, 1, 3, 2] - */ - function shuffle(collection) { - return sampleSize(collection, MAX_ARRAY_LENGTH); - } - - /** - * Gets the size of `collection` by returning its length for array-like - * values or the number of own enumerable string keyed properties for objects. - * - * @static - * @memberOf _ - * @since 0.1.0 - * @category Collection - * @param {Array|Object|string} collection The collection to inspect. - * @returns {number} Returns the collection size. - * @example - * - * _.size([1, 2, 3]); - * // => 3 - * - * _.size({ 'a': 1, 'b': 2 }); - * // => 2 - * - * _.size('pebbles'); - * // => 7 - */ - function size(collection) { - if (collection == null) { - return 0; - } - if (isArrayLike(collection)) { - return isString(collection) ? stringSize(collection) : collection.length; - } - var tag = getTag(collection); - if (tag == mapTag || tag == setTag) { - return collection.size; - } - return baseKeys(collection).length; - } - - /** - * Checks if `predicate` returns truthy for **any** element of `collection`. - * Iteration is stopped once `predicate` returns truthy. The predicate is - * invoked with three arguments: (value, index|key, collection). - * - * @static - * @memberOf _ - * @since 0.1.0 - * @category Collection - * @param {Array|Object} collection The collection to iterate over. - * @param {Function} [predicate=_.identity] The function invoked per iteration. - * @param- {Object} [guard] Enables use as an iteratee for methods like `_.map`. - * @returns {boolean} Returns `true` if any element passes the predicate check, - * else `false`. - * @example - * - * _.some([null, 0, 'yes', false], Boolean); - * // => true - * - * var users = [ - * { 'user': 'barney', 'active': true }, - * { 'user': 'fred', 'active': false } - * ]; - * - * // The `_.matches` iteratee shorthand. - * _.some(users, { 'user': 'barney', 'active': false }); - * // => false - * - * // The `_.matchesProperty` iteratee shorthand. - * _.some(users, ['active', false]); - * // => true - * - * // The `_.property` iteratee shorthand. - * _.some(users, 'active'); - * // => true - */ - function some(collection, predicate, guard) { - var func = isArray(collection) ? arraySome : baseSome; - if (guard && isIterateeCall(collection, predicate, guard)) { - predicate = undefined; - } - return func(collection, getIteratee(predicate, 3)); - } - - /** - * Creates an array of elements, sorted in ascending order by the results of - * running each element in a collection thru each iteratee. This method - * performs a stable sort, that is, it preserves the original sort order of - * equal elements. The iteratees are invoked with one argument: (value). - * - * @static - * @memberOf _ - * @since 0.1.0 - * @category Collection - * @param {Array|Object} collection The collection to iterate over. - * @param {...(Function|Function[])} [iteratees=[_.identity]] - * The iteratees to sort by. - * @returns {Array} Returns the new sorted array. - * @example - * - * var users = [ - * { 'user': 'fred', 'age': 48 }, - * { 'user': 'barney', 'age': 36 }, - * { 'user': 'fred', 'age': 40 }, - * { 'user': 'barney', 'age': 34 } - * ]; - * - * _.sortBy(users, function(o) { return o.user; }); - * // => objects for [['barney', 36], ['barney', 34], ['fred', 48], ['fred', 40]] - * - * _.sortBy(users, ['user', 'age']); - * // => objects for [['barney', 34], ['barney', 36], ['fred', 40], ['fred', 48]] - * - * _.sortBy(users, 'user', function(o) { - * return Math.floor(o.age / 10); - * }); - * // => objects for [['barney', 36], ['barney', 34], ['fred', 48], ['fred', 40]] - */ - var sortBy = baseRest(function(collection, iteratees) { - if (collection == null) { - return []; - } - var length = iteratees.length; - if (length > 1 && isIterateeCall(collection, iteratees[0], iteratees[1])) { - iteratees = []; - } else if (length > 2 && isIterateeCall(iteratees[0], iteratees[1], iteratees[2])) { - iteratees = [iteratees[0]]; - } - return baseOrderBy(collection, baseFlatten(iteratees, 1), []); - }); - - /*------------------------------------------------------------------------*/ - - /** - * Gets the timestamp of the number of milliseconds that have elapsed since - * the Unix epoch (1 January 1970 00:00:00 UTC). - * - * @static - * @memberOf _ - * @since 2.4.0 - * @category Date - * @returns {number} Returns the timestamp. - * @example - * - * _.defer(function(stamp) { - * console.log(_.now() - stamp); - * }, _.now()); - * // => Logs the number of milliseconds it took for the deferred invocation. - */ - var now = ctxNow || function() { - return root.Date.now(); - }; - - /*------------------------------------------------------------------------*/ - - /** - * The opposite of `_.before`; this method creates a function that invokes - * `func` once it's called `n` or more times. - * - * @static - * @memberOf _ - * @since 0.1.0 - * @category Function - * @param {number} n The number of calls before `func` is invoked. - * @param {Function} func The function to restrict. - * @returns {Function} Returns the new restricted function. - * @example - * - * var saves = ['profile', 'settings']; - * - * var done = _.after(saves.length, function() { - * console.log('done saving!'); - * }); - * - * _.forEach(saves, function(type) { - * asyncSave({ 'type': type, 'complete': done }); - * }); - * // => Logs 'done saving!' after the two async saves have completed. - */ - function after(n, func) { - if (typeof func != 'function') { - throw new TypeError(FUNC_ERROR_TEXT); - } - n = toInteger(n); - return function() { - if (--n < 1) { - return func.apply(this, arguments); - } - }; - } - - /** - * Creates a function that invokes `func`, with up to `n` arguments, - * ignoring any additional arguments. - * - * @static - * @memberOf _ - * @since 3.0.0 - * @category Function - * @param {Function} func The function to cap arguments for. - * @param {number} [n=func.length] The arity cap. - * @param- {Object} [guard] Enables use as an iteratee for methods like `_.map`. - * @returns {Function} Returns the new capped function. - * @example - * - * _.map(['6', '8', '10'], _.ary(parseInt, 1)); - * // => [6, 8, 10] - */ - function ary(func, n, guard) { - n = guard ? undefined : n; - n = (func && n == null) ? func.length : n; - return createWrap(func, ARY_FLAG, undefined, undefined, undefined, undefined, n); - } - - /** - * Creates a function that invokes `func`, with the `this` binding and arguments - * of the created function, while it's called less than `n` times. Subsequent - * calls to the created function return the result of the last `func` invocation. - * - * @static - * @memberOf _ - * @since 3.0.0 - * @category Function - * @param {number} n The number of calls at which `func` is no longer invoked. - * @param {Function} func The function to restrict. - * @returns {Function} Returns the new restricted function. - * @example - * - * jQuery(element).on('click', _.before(5, addContactToList)); - * // => Allows adding up to 4 contacts to the list. - */ - function before(n, func) { - var result; - if (typeof func != 'function') { - throw new TypeError(FUNC_ERROR_TEXT); - } - n = toInteger(n); - return function() { - if (--n > 0) { - result = func.apply(this, arguments); - } - if (n <= 1) { - func = undefined; - } - return result; - }; - } - - /** - * Creates a function that invokes `func` with the `this` binding of `thisArg` - * and `partials` prepended to the arguments it receives. - * - * The `_.bind.placeholder` value, which defaults to `_` in monolithic builds, - * may be used as a placeholder for partially applied arguments. - * - * **Note:** Unlike native `Function#bind`, this method doesn't set the "length" - * property of bound functions. - * - * @static - * @memberOf _ - * @since 0.1.0 - * @category Function - * @param {Function} func The function to bind. - * @param {*} thisArg The `this` binding of `func`. - * @param {...*} [partials] The arguments to be partially applied. - * @returns {Function} Returns the new bound function. - * @example - * - * function greet(greeting, punctuation) { - * return greeting + ' ' + this.user + punctuation; - * } - * - * var object = { 'user': 'fred' }; - * - * var bound = _.bind(greet, object, 'hi'); - * bound('!'); - * // => 'hi fred!' - * - * // Bound with placeholders. - * var bound = _.bind(greet, object, _, '!'); - * bound('hi'); - * // => 'hi fred!' - */ - var bind = baseRest(function(func, thisArg, partials) { - var bitmask = BIND_FLAG; - if (partials.length) { - var holders = replaceHolders(partials, getHolder(bind)); - bitmask |= PARTIAL_FLAG; - } - return createWrap(func, bitmask, thisArg, partials, holders); - }); - - /** - * Creates a function that invokes the method at `object[key]` with `partials` - * prepended to the arguments it receives. - * - * This method differs from `_.bind` by allowing bound functions to reference - * methods that may be redefined or don't yet exist. See - * [Peter Michaux's article](http://peter.michaux.ca/articles/lazy-function-definition-pattern) - * for more details. - * - * The `_.bindKey.placeholder` value, which defaults to `_` in monolithic - * builds, may be used as a placeholder for partially applied arguments. - * - * @static - * @memberOf _ - * @since 0.10.0 - * @category Function - * @param {Object} object The object to invoke the method on. - * @param {string} key The key of the method. - * @param {...*} [partials] The arguments to be partially applied. - * @returns {Function} Returns the new bound function. - * @example - * - * var object = { - * 'user': 'fred', - * 'greet': function(greeting, punctuation) { - * return greeting + ' ' + this.user + punctuation; - * } - * }; - * - * var bound = _.bindKey(object, 'greet', 'hi'); - * bound('!'); - * // => 'hi fred!' - * - * object.greet = function(greeting, punctuation) { - * return greeting + 'ya ' + this.user + punctuation; - * }; - * - * bound('!'); - * // => 'hiya fred!' - * - * // Bound with placeholders. - * var bound = _.bindKey(object, 'greet', _, '!'); - * bound('hi'); - * // => 'hiya fred!' - */ - var bindKey = baseRest(function(object, key, partials) { - var bitmask = BIND_FLAG | BIND_KEY_FLAG; - if (partials.length) { - var holders = replaceHolders(partials, getHolder(bindKey)); - bitmask |= PARTIAL_FLAG; - } - return createWrap(key, bitmask, object, partials, holders); - }); - - /** - * Creates a function that accepts arguments of `func` and either invokes - * `func` returning its result, if at least `arity` number of arguments have - * been provided, or returns a function that accepts the remaining `func` - * arguments, and so on. The arity of `func` may be specified if `func.length` - * is not sufficient. - * - * The `_.curry.placeholder` value, which defaults to `_` in monolithic builds, - * may be used as a placeholder for provided arguments. - * - * **Note:** This method doesn't set the "length" property of curried functions. - * - * @static - * @memberOf _ - * @since 2.0.0 - * @category Function - * @param {Function} func The function to curry. - * @param {number} [arity=func.length] The arity of `func`. - * @param- {Object} [guard] Enables use as an iteratee for methods like `_.map`. - * @returns {Function} Returns the new curried function. - * @example - * - * var abc = function(a, b, c) { - * return [a, b, c]; - * }; - * - * var curried = _.curry(abc); - * - * curried(1)(2)(3); - * // => [1, 2, 3] - * - * curried(1, 2)(3); - * // => [1, 2, 3] - * - * curried(1, 2, 3); - * // => [1, 2, 3] - * - * // Curried with placeholders. - * curried(1)(_, 3)(2); - * // => [1, 2, 3] - */ - function curry(func, arity, guard) { - arity = guard ? undefined : arity; - var result = createWrap(func, CURRY_FLAG, undefined, undefined, undefined, undefined, undefined, arity); - result.placeholder = curry.placeholder; - return result; - } - - /** - * This method is like `_.curry` except that arguments are applied to `func` - * in the manner of `_.partialRight` instead of `_.partial`. - * - * The `_.curryRight.placeholder` value, which defaults to `_` in monolithic - * builds, may be used as a placeholder for provided arguments. - * - * **Note:** This method doesn't set the "length" property of curried functions. - * - * @static - * @memberOf _ - * @since 3.0.0 - * @category Function - * @param {Function} func The function to curry. - * @param {number} [arity=func.length] The arity of `func`. - * @param- {Object} [guard] Enables use as an iteratee for methods like `_.map`. - * @returns {Function} Returns the new curried function. - * @example - * - * var abc = function(a, b, c) { - * return [a, b, c]; - * }; - * - * var curried = _.curryRight(abc); - * - * curried(3)(2)(1); - * // => [1, 2, 3] - * - * curried(2, 3)(1); - * // => [1, 2, 3] - * - * curried(1, 2, 3); - * // => [1, 2, 3] - * - * // Curried with placeholders. - * curried(3)(1, _)(2); - * // => [1, 2, 3] - */ - function curryRight(func, arity, guard) { - arity = guard ? undefined : arity; - var result = createWrap(func, CURRY_RIGHT_FLAG, undefined, undefined, undefined, undefined, undefined, arity); - result.placeholder = curryRight.placeholder; - return result; - } - - /** - * Creates a debounced function that delays invoking `func` until after `wait` - * milliseconds have elapsed since the last time the debounced function was - * invoked. The debounced function comes with a `cancel` method to cancel - * delayed `func` invocations and a `flush` method to immediately invoke them. - * Provide `options` to indicate whether `func` should be invoked on the - * leading and/or trailing edge of the `wait` timeout. The `func` is invoked - * with the last arguments provided to the debounced function. Subsequent - * calls to the debounced function return the result of the last `func` - * invocation. - * - * **Note:** If `leading` and `trailing` options are `true`, `func` is - * invoked on the trailing edge of the timeout only if the debounced function - * is invoked more than once during the `wait` timeout. - * - * If `wait` is `0` and `leading` is `false`, `func` invocation is deferred - * until to the next tick, similar to `setTimeout` with a timeout of `0`. - * - * See [David Corbacho's article](https://css-tricks.com/debouncing-throttling-explained-examples/) - * for details over the differences between `_.debounce` and `_.throttle`. - * - * @static - * @memberOf _ - * @since 0.1.0 - * @category Function - * @param {Function} func The function to debounce. - * @param {number} [wait=0] The number of milliseconds to delay. - * @param {Object} [options={}] The options object. - * @param {boolean} [options.leading=false] - * Specify invoking on the leading edge of the timeout. - * @param {number} [options.maxWait] - * The maximum time `func` is allowed to be delayed before it's invoked. - * @param {boolean} [options.trailing=true] - * Specify invoking on the trailing edge of the timeout. - * @returns {Function} Returns the new debounced function. - * @example - * - * // Avoid costly calculations while the window size is in flux. - * jQuery(window).on('resize', _.debounce(calculateLayout, 150)); - * - * // Invoke `sendMail` when clicked, debouncing subsequent calls. - * jQuery(element).on('click', _.debounce(sendMail, 300, { - * 'leading': true, - * 'trailing': false - * })); - * - * // Ensure `batchLog` is invoked once after 1 second of debounced calls. - * var debounced = _.debounce(batchLog, 250, { 'maxWait': 1000 }); - * var source = new EventSource('/stream'); - * jQuery(source).on('message', debounced); - * - * // Cancel the trailing debounced invocation. - * jQuery(window).on('popstate', debounced.cancel); - */ - function debounce(func, wait, options) { - var lastArgs, - lastThis, - maxWait, - result, - timerId, - lastCallTime, - lastInvokeTime = 0, - leading = false, - maxing = false, - trailing = true; - - if (typeof func != 'function') { - throw new TypeError(FUNC_ERROR_TEXT); - } - wait = toNumber(wait) || 0; - if (isObject(options)) { - leading = !!options.leading; - maxing = 'maxWait' in options; - maxWait = maxing ? nativeMax(toNumber(options.maxWait) || 0, wait) : maxWait; - trailing = 'trailing' in options ? !!options.trailing : trailing; - } - - function invokeFunc(time) { - var args = lastArgs, - thisArg = lastThis; - - lastArgs = lastThis = undefined; - lastInvokeTime = time; - result = func.apply(thisArg, args); - return result; - } - - function leadingEdge(time) { - // Reset any `maxWait` timer. - lastInvokeTime = time; - // Start the timer for the trailing edge. - timerId = setTimeout(timerExpired, wait); - // Invoke the leading edge. - return leading ? invokeFunc(time) : result; - } - - function remainingWait(time) { - var timeSinceLastCall = time - lastCallTime, - timeSinceLastInvoke = time - lastInvokeTime, - result = wait - timeSinceLastCall; - - return maxing ? nativeMin(result, maxWait - timeSinceLastInvoke) : result; - } - - function shouldInvoke(time) { - var timeSinceLastCall = time - lastCallTime, - timeSinceLastInvoke = time - lastInvokeTime; - - // Either this is the first call, activity has stopped and we're at the - // trailing edge, the system time has gone backwards and we're treating - // it as the trailing edge, or we've hit the `maxWait` limit. - return (lastCallTime === undefined || (timeSinceLastCall >= wait) || - (timeSinceLastCall < 0) || (maxing && timeSinceLastInvoke >= maxWait)); - } - - function timerExpired() { - var time = now(); - if (shouldInvoke(time)) { - return trailingEdge(time); - } - // Restart the timer. - timerId = setTimeout(timerExpired, remainingWait(time)); - } - - function trailingEdge(time) { - timerId = undefined; - - // Only invoke if we have `lastArgs` which means `func` has been - // debounced at least once. - if (trailing && lastArgs) { - return invokeFunc(time); - } - lastArgs = lastThis = undefined; - return result; - } - - function cancel() { - if (timerId !== undefined) { - clearTimeout(timerId); - } - lastInvokeTime = 0; - lastArgs = lastCallTime = lastThis = timerId = undefined; - } - - function flush() { - return timerId === undefined ? result : trailingEdge(now()); - } - - function debounced() { - var time = now(), - isInvoking = shouldInvoke(time); - - lastArgs = arguments; - lastThis = this; - lastCallTime = time; - - if (isInvoking) { - if (timerId === undefined) { - return leadingEdge(lastCallTime); - } - if (maxing) { - // Handle invocations in a tight loop. - timerId = setTimeout(timerExpired, wait); - return invokeFunc(lastCallTime); - } - } - if (timerId === undefined) { - timerId = setTimeout(timerExpired, wait); - } - return result; - } - debounced.cancel = cancel; - debounced.flush = flush; - return debounced; - } - - /** - * Defers invoking the `func` until the current call stack has cleared. Any - * additional arguments are provided to `func` when it's invoked. - * - * @static - * @memberOf _ - * @since 0.1.0 - * @category Function - * @param {Function} func The function to defer. - * @param {...*} [args] The arguments to invoke `func` with. - * @returns {number} Returns the timer id. - * @example - * - * _.defer(function(text) { - * console.log(text); - * }, 'deferred'); - * // => Logs 'deferred' after one or more milliseconds. - */ - var defer = baseRest(function(func, args) { - return baseDelay(func, 1, args); - }); - - /** - * Invokes `func` after `wait` milliseconds. Any additional arguments are - * provided to `func` when it's invoked. - * - * @static - * @memberOf _ - * @since 0.1.0 - * @category Function - * @param {Function} func The function to delay. - * @param {number} wait The number of milliseconds to delay invocation. - * @param {...*} [args] The arguments to invoke `func` with. - * @returns {number} Returns the timer id. - * @example - * - * _.delay(function(text) { - * console.log(text); - * }, 1000, 'later'); - * // => Logs 'later' after one second. - */ - var delay = baseRest(function(func, wait, args) { - return baseDelay(func, toNumber(wait) || 0, args); - }); - - /** - * Creates a function that invokes `func` with arguments reversed. - * - * @static - * @memberOf _ - * @since 4.0.0 - * @category Function - * @param {Function} func The function to flip arguments for. - * @returns {Function} Returns the new flipped function. - * @example - * - * var flipped = _.flip(function() { - * return _.toArray(arguments); - * }); - * - * flipped('a', 'b', 'c', 'd'); - * // => ['d', 'c', 'b', 'a'] - */ - function flip(func) { - return createWrap(func, FLIP_FLAG); - } - - /** - * Creates a function that memoizes the result of `func`. If `resolver` is - * provided, it determines the cache key for storing the result based on the - * arguments provided to the memoized function. By default, the first argument - * provided to the memoized function is used as the map cache key. The `func` - * is invoked with the `this` binding of the memoized function. - * - * **Note:** The cache is exposed as the `cache` property on the memoized - * function. Its creation may be customized by replacing the `_.memoize.Cache` - * constructor with one whose instances implement the - * [`Map`](http://ecma-international.org/ecma-262/7.0/#sec-properties-of-the-map-prototype-object) - * method interface of `delete`, `get`, `has`, and `set`. - * - * @static - * @memberOf _ - * @since 0.1.0 - * @category Function - * @param {Function} func The function to have its output memoized. - * @param {Function} [resolver] The function to resolve the cache key. - * @returns {Function} Returns the new memoized function. - * @example - * - * var object = { 'a': 1, 'b': 2 }; - * var other = { 'c': 3, 'd': 4 }; - * - * var values = _.memoize(_.values); - * values(object); - * // => [1, 2] - * - * values(other); - * // => [3, 4] - * - * object.a = 2; - * values(object); - * // => [1, 2] - * - * // Modify the result cache. - * values.cache.set(object, ['a', 'b']); - * values(object); - * // => ['a', 'b'] - * - * // Replace `_.memoize.Cache`. - * _.memoize.Cache = WeakMap; - */ - function memoize(func, resolver) { - if (typeof func != 'function' || (resolver && typeof resolver != 'function')) { - throw new TypeError(FUNC_ERROR_TEXT); - } - var memoized = function() { - var args = arguments, - key = resolver ? resolver.apply(this, args) : args[0], - cache = memoized.cache; - - if (cache.has(key)) { - return cache.get(key); - } - var result = func.apply(this, args); - memoized.cache = cache.set(key, result); - return result; - }; - memoized.cache = new (memoize.Cache || MapCache); - return memoized; - } - - // Assign cache to `_.memoize`. - memoize.Cache = MapCache; - - /** - * Creates a function that negates the result of the predicate `func`. The - * `func` predicate is invoked with the `this` binding and arguments of the - * created function. - * - * @static - * @memberOf _ - * @since 3.0.0 - * @category Function - * @param {Function} predicate The predicate to negate. - * @returns {Function} Returns the new negated function. - * @example - * - * function isEven(n) { - * return n % 2 == 0; - * } - * - * _.filter([1, 2, 3, 4, 5, 6], _.negate(isEven)); - * // => [1, 3, 5] - */ - function negate(predicate) { - if (typeof predicate != 'function') { - throw new TypeError(FUNC_ERROR_TEXT); - } - return function() { - var args = arguments; - switch (args.length) { - case 0: return !predicate.call(this); - case 1: return !predicate.call(this, args[0]); - case 2: return !predicate.call(this, args[0], args[1]); - case 3: return !predicate.call(this, args[0], args[1], args[2]); - } - return !predicate.apply(this, args); - }; - } - - /** - * Creates a function that is restricted to invoking `func` once. Repeat calls - * to the function return the value of the first invocation. The `func` is - * invoked with the `this` binding and arguments of the created function. - * - * @static - * @memberOf _ - * @since 0.1.0 - * @category Function - * @param {Function} func The function to restrict. - * @returns {Function} Returns the new restricted function. - * @example - * - * var initialize = _.once(createApplication); - * initialize(); - * initialize(); - * // => `createApplication` is invoked once - */ - function once(func) { - return before(2, func); - } - - /** - * Creates a function that invokes `func` with its arguments transformed. - * - * @static - * @since 4.0.0 - * @memberOf _ - * @category Function - * @param {Function} func The function to wrap. - * @param {...(Function|Function[])} [transforms=[_.identity]] - * The argument transforms. - * @returns {Function} Returns the new function. - * @example - * - * function doubled(n) { - * return n * 2; - * } - * - * function square(n) { - * return n * n; - * } - * - * var func = _.overArgs(function(x, y) { - * return [x, y]; - * }, [square, doubled]); - * - * func(9, 3); - * // => [81, 6] - * - * func(10, 5); - * // => [100, 10] - */ - var overArgs = baseRest(function(func, transforms) { - transforms = (transforms.length == 1 && isArray(transforms[0])) - ? arrayMap(transforms[0], baseUnary(getIteratee())) - : arrayMap(baseFlatten(transforms, 1), baseUnary(getIteratee())); - - var funcsLength = transforms.length; - return baseRest(function(args) { - var index = -1, - length = nativeMin(args.length, funcsLength); - - while (++index < length) { - args[index] = transforms[index].call(this, args[index]); - } - return apply(func, this, args); - }); - }); - - /** - * Creates a function that invokes `func` with `partials` prepended to the - * arguments it receives. This method is like `_.bind` except it does **not** - * alter the `this` binding. - * - * The `_.partial.placeholder` value, which defaults to `_` in monolithic - * builds, may be used as a placeholder for partially applied arguments. - * - * **Note:** This method doesn't set the "length" property of partially - * applied functions. - * - * @static - * @memberOf _ - * @since 0.2.0 - * @category Function - * @param {Function} func The function to partially apply arguments to. - * @param {...*} [partials] The arguments to be partially applied. - * @returns {Function} Returns the new partially applied function. - * @example - * - * function greet(greeting, name) { - * return greeting + ' ' + name; - * } - * - * var sayHelloTo = _.partial(greet, 'hello'); - * sayHelloTo('fred'); - * // => 'hello fred' - * - * // Partially applied with placeholders. - * var greetFred = _.partial(greet, _, 'fred'); - * greetFred('hi'); - * // => 'hi fred' - */ - var partial = baseRest(function(func, partials) { - var holders = replaceHolders(partials, getHolder(partial)); - return createWrap(func, PARTIAL_FLAG, undefined, partials, holders); - }); - - /** - * This method is like `_.partial` except that partially applied arguments - * are appended to the arguments it receives. - * - * The `_.partialRight.placeholder` value, which defaults to `_` in monolithic - * builds, may be used as a placeholder for partially applied arguments. - * - * **Note:** This method doesn't set the "length" property of partially - * applied functions. - * - * @static - * @memberOf _ - * @since 1.0.0 - * @category Function - * @param {Function} func The function to partially apply arguments to. - * @param {...*} [partials] The arguments to be partially applied. - * @returns {Function} Returns the new partially applied function. - * @example - * - * function greet(greeting, name) { - * return greeting + ' ' + name; - * } - * - * var greetFred = _.partialRight(greet, 'fred'); - * greetFred('hi'); - * // => 'hi fred' - * - * // Partially applied with placeholders. - * var sayHelloTo = _.partialRight(greet, 'hello', _); - * sayHelloTo('fred'); - * // => 'hello fred' - */ - var partialRight = baseRest(function(func, partials) { - var holders = replaceHolders(partials, getHolder(partialRight)); - return createWrap(func, PARTIAL_RIGHT_FLAG, undefined, partials, holders); - }); - - /** - * Creates a function that invokes `func` with arguments arranged according - * to the specified `indexes` where the argument value at the first index is - * provided as the first argument, the argument value at the second index is - * provided as the second argument, and so on. - * - * @static - * @memberOf _ - * @since 3.0.0 - * @category Function - * @param {Function} func The function to rearrange arguments for. - * @param {...(number|number[])} indexes The arranged argument indexes. - * @returns {Function} Returns the new function. - * @example - * - * var rearged = _.rearg(function(a, b, c) { - * return [a, b, c]; - * }, [2, 0, 1]); - * - * rearged('b', 'c', 'a') - * // => ['a', 'b', 'c'] - */ - var rearg = baseRest(function(func, indexes) { - return createWrap(func, REARG_FLAG, undefined, undefined, undefined, baseFlatten(indexes, 1)); - }); - - /** - * Creates a function that invokes `func` with the `this` binding of the - * created function and arguments from `start` and beyond provided as - * an array. - * - * **Note:** This method is based on the - * [rest parameter](https://mdn.io/rest_parameters). - * - * @static - * @memberOf _ - * @since 4.0.0 - * @category Function - * @param {Function} func The function to apply a rest parameter to. - * @param {number} [start=func.length-1] The start position of the rest parameter. - * @returns {Function} Returns the new function. - * @example - * - * var say = _.rest(function(what, names) { - * return what + ' ' + _.initial(names).join(', ') + - * (_.size(names) > 1 ? ', & ' : '') + _.last(names); - * }); - * - * say('hello', 'fred', 'barney', 'pebbles'); - * // => 'hello fred, barney, & pebbles' - */ - function rest(func, start) { - if (typeof func != 'function') { - throw new TypeError(FUNC_ERROR_TEXT); - } - start = start === undefined ? start : toInteger(start); - return baseRest(func, start); - } - - /** - * Creates a function that invokes `func` with the `this` binding of the - * create function and an array of arguments much like - * [`Function#apply`](http://www.ecma-international.org/ecma-262/7.0/#sec-function.prototype.apply). - * - * **Note:** This method is based on the - * [spread operator](https://mdn.io/spread_operator). - * - * @static - * @memberOf _ - * @since 3.2.0 - * @category Function - * @param {Function} func The function to spread arguments over. - * @param {number} [start=0] The start position of the spread. - * @returns {Function} Returns the new function. - * @example - * - * var say = _.spread(function(who, what) { - * return who + ' says ' + what; - * }); - * - * say(['fred', 'hello']); - * // => 'fred says hello' - * - * var numbers = Promise.all([ - * Promise.resolve(40), - * Promise.resolve(36) - * ]); - * - * numbers.then(_.spread(function(x, y) { - * return x + y; - * })); - * // => a Promise of 76 - */ - function spread(func, start) { - if (typeof func != 'function') { - throw new TypeError(FUNC_ERROR_TEXT); - } - start = start === undefined ? 0 : nativeMax(toInteger(start), 0); - return baseRest(function(args) { - var array = args[start], - otherArgs = castSlice(args, 0, start); - - if (array) { - arrayPush(otherArgs, array); - } - return apply(func, this, otherArgs); - }); - } - - /** - * Creates a throttled function that only invokes `func` at most once per - * every `wait` milliseconds. The throttled function comes with a `cancel` - * method to cancel delayed `func` invocations and a `flush` method to - * immediately invoke them. Provide `options` to indicate whether `func` - * should be invoked on the leading and/or trailing edge of the `wait` - * timeout. The `func` is invoked with the last arguments provided to the - * throttled function. Subsequent calls to the throttled function return the - * result of the last `func` invocation. - * - * **Note:** If `leading` and `trailing` options are `true`, `func` is - * invoked on the trailing edge of the timeout only if the throttled function - * is invoked more than once during the `wait` timeout. - * - * If `wait` is `0` and `leading` is `false`, `func` invocation is deferred - * until to the next tick, similar to `setTimeout` with a timeout of `0`. - * - * See [David Corbacho's article](https://css-tricks.com/debouncing-throttling-explained-examples/) - * for details over the differences between `_.throttle` and `_.debounce`. - * - * @static - * @memberOf _ - * @since 0.1.0 - * @category Function - * @param {Function} func The function to throttle. - * @param {number} [wait=0] The number of milliseconds to throttle invocations to. - * @param {Object} [options={}] The options object. - * @param {boolean} [options.leading=true] - * Specify invoking on the leading edge of the timeout. - * @param {boolean} [options.trailing=true] - * Specify invoking on the trailing edge of the timeout. - * @returns {Function} Returns the new throttled function. - * @example - * - * // Avoid excessively updating the position while scrolling. - * jQuery(window).on('scroll', _.throttle(updatePosition, 100)); - * - * // Invoke `renewToken` when the click event is fired, but not more than once every 5 minutes. - * var throttled = _.throttle(renewToken, 300000, { 'trailing': false }); - * jQuery(element).on('click', throttled); - * - * // Cancel the trailing throttled invocation. - * jQuery(window).on('popstate', throttled.cancel); - */ - function throttle(func, wait, options) { - var leading = true, - trailing = true; - - if (typeof func != 'function') { - throw new TypeError(FUNC_ERROR_TEXT); - } - if (isObject(options)) { - leading = 'leading' in options ? !!options.leading : leading; - trailing = 'trailing' in options ? !!options.trailing : trailing; - } - return debounce(func, wait, { - 'leading': leading, - 'maxWait': wait, - 'trailing': trailing - }); - } - - /** - * Creates a function that accepts up to one argument, ignoring any - * additional arguments. - * - * @static - * @memberOf _ - * @since 4.0.0 - * @category Function - * @param {Function} func The function to cap arguments for. - * @returns {Function} Returns the new capped function. - * @example - * - * _.map(['6', '8', '10'], _.unary(parseInt)); - * // => [6, 8, 10] - */ - function unary(func) { - return ary(func, 1); - } - - /** - * Creates a function that provides `value` to `wrapper` as its first - * argument. Any additional arguments provided to the function are appended - * to those provided to the `wrapper`. The wrapper is invoked with the `this` - * binding of the created function. - * - * @static - * @memberOf _ - * @since 0.1.0 - * @category Function - * @param {*} value The value to wrap. - * @param {Function} [wrapper=identity] The wrapper function. - * @returns {Function} Returns the new function. - * @example - * - * var p = _.wrap(_.escape, function(func, text) { - * return '

' + func(text) + '

'; - * }); - * - * p('fred, barney, & pebbles'); - * // => '

fred, barney, & pebbles

' - */ - function wrap(value, wrapper) { - wrapper = wrapper == null ? identity : wrapper; - return partial(wrapper, value); - } - - /*------------------------------------------------------------------------*/ - - /** - * Casts `value` as an array if it's not one. - * - * @static - * @memberOf _ - * @since 4.4.0 - * @category Lang - * @param {*} value The value to inspect. - * @returns {Array} Returns the cast array. - * @example - * - * _.castArray(1); - * // => [1] - * - * _.castArray({ 'a': 1 }); - * // => [{ 'a': 1 }] - * - * _.castArray('abc'); - * // => ['abc'] - * - * _.castArray(null); - * // => [null] - * - * _.castArray(undefined); - * // => [undefined] - * - * _.castArray(); - * // => [] - * - * var array = [1, 2, 3]; - * console.log(_.castArray(array) === array); - * // => true - */ - function castArray() { - if (!arguments.length) { - return []; - } - var value = arguments[0]; - return isArray(value) ? value : [value]; - } - - /** - * Creates a shallow clone of `value`. - * - * **Note:** This method is loosely based on the - * [structured clone algorithm](https://mdn.io/Structured_clone_algorithm) - * and supports cloning arrays, array buffers, booleans, date objects, maps, - * numbers, `Object` objects, regexes, sets, strings, symbols, and typed - * arrays. The own enumerable properties of `arguments` objects are cloned - * as plain objects. An empty object is returned for uncloneable values such - * as error objects, functions, DOM nodes, and WeakMaps. - * - * @static - * @memberOf _ - * @since 0.1.0 - * @category Lang - * @param {*} value The value to clone. - * @returns {*} Returns the cloned value. - * @see _.cloneDeep - * @example - * - * var objects = [{ 'a': 1 }, { 'b': 2 }]; - * - * var shallow = _.clone(objects); - * console.log(shallow[0] === objects[0]); - * // => true - */ - function clone(value) { - return baseClone(value, false, true); - } - - /** - * This method is like `_.clone` except that it accepts `customizer` which - * is invoked to produce the cloned value. If `customizer` returns `undefined`, - * cloning is handled by the method instead. The `customizer` is invoked with - * up to four arguments; (value [, index|key, object, stack]). - * - * @static - * @memberOf _ - * @since 4.0.0 - * @category Lang - * @param {*} value The value to clone. - * @param {Function} [customizer] The function to customize cloning. - * @returns {*} Returns the cloned value. - * @see _.cloneDeepWith - * @example - * - * function customizer(value) { - * if (_.isElement(value)) { - * return value.cloneNode(false); - * } - * } - * - * var el = _.cloneWith(document.body, customizer); - * - * console.log(el === document.body); - * // => false - * console.log(el.nodeName); - * // => 'BODY' - * console.log(el.childNodes.length); - * // => 0 - */ - function cloneWith(value, customizer) { - return baseClone(value, false, true, customizer); - } - - /** - * This method is like `_.clone` except that it recursively clones `value`. - * - * @static - * @memberOf _ - * @since 1.0.0 - * @category Lang - * @param {*} value The value to recursively clone. - * @returns {*} Returns the deep cloned value. - * @see _.clone - * @example - * - * var objects = [{ 'a': 1 }, { 'b': 2 }]; - * - * var deep = _.cloneDeep(objects); - * console.log(deep[0] === objects[0]); - * // => false - */ - function cloneDeep(value) { - return baseClone(value, true, true); - } - - /** - * This method is like `_.cloneWith` except that it recursively clones `value`. - * - * @static - * @memberOf _ - * @since 4.0.0 - * @category Lang - * @param {*} value The value to recursively clone. - * @param {Function} [customizer] The function to customize cloning. - * @returns {*} Returns the deep cloned value. - * @see _.cloneWith - * @example - * - * function customizer(value) { - * if (_.isElement(value)) { - * return value.cloneNode(true); - * } - * } - * - * var el = _.cloneDeepWith(document.body, customizer); - * - * console.log(el === document.body); - * // => false - * console.log(el.nodeName); - * // => 'BODY' - * console.log(el.childNodes.length); - * // => 20 - */ - function cloneDeepWith(value, customizer) { - return baseClone(value, true, true, customizer); - } - - /** - * Checks if `object` conforms to `source` by invoking the predicate - * properties of `source` with the corresponding property values of `object`. - * - * **Note:** This method is equivalent to `_.conforms` when `source` is - * partially applied. - * - * @static - * @memberOf _ - * @since 4.14.0 - * @category Lang - * @param {Object} object The object to inspect. - * @param {Object} source The object of property predicates to conform to. - * @returns {boolean} Returns `true` if `object` conforms, else `false`. - * @example - * - * var object = { 'a': 1, 'b': 2 }; - * - * _.conformsTo(object, { 'b': function(n) { return n > 1; } }); - * // => true - * - * _.conformsTo(object, { 'b': function(n) { return n > 2; } }); - * // => false - */ - function conformsTo(object, source) { - return source == null || baseConformsTo(object, source, keys(source)); - } - - /** - * Performs a - * [`SameValueZero`](http://ecma-international.org/ecma-262/7.0/#sec-samevaluezero) - * comparison between two values to determine if they are equivalent. - * - * @static - * @memberOf _ - * @since 4.0.0 - * @category Lang - * @param {*} value The value to compare. - * @param {*} other The other value to compare. - * @returns {boolean} Returns `true` if the values are equivalent, else `false`. - * @example - * - * var object = { 'a': 1 }; - * var other = { 'a': 1 }; - * - * _.eq(object, object); - * // => true - * - * _.eq(object, other); - * // => false - * - * _.eq('a', 'a'); - * // => true - * - * _.eq('a', Object('a')); - * // => false - * - * _.eq(NaN, NaN); - * // => true - */ - function eq(value, other) { - return value === other || (value !== value && other !== other); - } - - /** - * Checks if `value` is greater than `other`. - * - * @static - * @memberOf _ - * @since 3.9.0 - * @category Lang - * @param {*} value The value to compare. - * @param {*} other The other value to compare. - * @returns {boolean} Returns `true` if `value` is greater than `other`, - * else `false`. - * @see _.lt - * @example - * - * _.gt(3, 1); - * // => true - * - * _.gt(3, 3); - * // => false - * - * _.gt(1, 3); - * // => false - */ - var gt = createRelationalOperation(baseGt); - - /** - * Checks if `value` is greater than or equal to `other`. - * - * @static - * @memberOf _ - * @since 3.9.0 - * @category Lang - * @param {*} value The value to compare. - * @param {*} other The other value to compare. - * @returns {boolean} Returns `true` if `value` is greater than or equal to - * `other`, else `false`. - * @see _.lte - * @example - * - * _.gte(3, 1); - * // => true - * - * _.gte(3, 3); - * // => true - * - * _.gte(1, 3); - * // => false - */ - var gte = createRelationalOperation(function(value, other) { - return value >= other; - }); - - /** - * Checks if `value` is likely an `arguments` object. - * - * @static - * @memberOf _ - * @since 0.1.0 - * @category Lang - * @param {*} value The value to check. - * @returns {boolean} Returns `true` if `value` is an `arguments` object, - * else `false`. - * @example - * - * _.isArguments(function() { return arguments; }()); - * // => true - * - * _.isArguments([1, 2, 3]); - * // => false - */ - function isArguments(value) { - // Safari 8.1 makes `arguments.callee` enumerable in strict mode. - return isArrayLikeObject(value) && hasOwnProperty.call(value, 'callee') && - (!propertyIsEnumerable.call(value, 'callee') || objectToString.call(value) == argsTag); - } - - /** - * Checks if `value` is classified as an `Array` object. - * - * @static - * @memberOf _ - * @since 0.1.0 - * @category Lang - * @param {*} value The value to check. - * @returns {boolean} Returns `true` if `value` is an array, else `false`. - * @example - * - * _.isArray([1, 2, 3]); - * // => true - * - * _.isArray(document.body.children); - * // => false - * - * _.isArray('abc'); - * // => false - * - * _.isArray(_.noop); - * // => false - */ - var isArray = Array.isArray; - - /** - * Checks if `value` is classified as an `ArrayBuffer` object. - * - * @static - * @memberOf _ - * @since 4.3.0 - * @category Lang - * @param {*} value The value to check. - * @returns {boolean} Returns `true` if `value` is an array buffer, else `false`. - * @example - * - * _.isArrayBuffer(new ArrayBuffer(2)); - * // => true - * - * _.isArrayBuffer(new Array(2)); - * // => false - */ - var isArrayBuffer = nodeIsArrayBuffer ? baseUnary(nodeIsArrayBuffer) : baseIsArrayBuffer; - - /** - * Checks if `value` is array-like. A value is considered array-like if it's - * not a function and has a `value.length` that's an integer greater than or - * equal to `0` and less than or equal to `Number.MAX_SAFE_INTEGER`. - * - * @static - * @memberOf _ - * @since 4.0.0 - * @category Lang - * @param {*} value The value to check. - * @returns {boolean} Returns `true` if `value` is array-like, else `false`. - * @example - * - * _.isArrayLike([1, 2, 3]); - * // => true - * - * _.isArrayLike(document.body.children); - * // => true - * - * _.isArrayLike('abc'); - * // => true - * - * _.isArrayLike(_.noop); - * // => false - */ - function isArrayLike(value) { - return value != null && isLength(value.length) && !isFunction(value); - } - - /** - * This method is like `_.isArrayLike` except that it also checks if `value` - * is an object. - * - * @static - * @memberOf _ - * @since 4.0.0 - * @category Lang - * @param {*} value The value to check. - * @returns {boolean} Returns `true` if `value` is an array-like object, - * else `false`. - * @example - * - * _.isArrayLikeObject([1, 2, 3]); - * // => true - * - * _.isArrayLikeObject(document.body.children); - * // => true - * - * _.isArrayLikeObject('abc'); - * // => false - * - * _.isArrayLikeObject(_.noop); - * // => false - */ - function isArrayLikeObject(value) { - return isObjectLike(value) && isArrayLike(value); - } - - /** - * Checks if `value` is classified as a boolean primitive or object. - * - * @static - * @memberOf _ - * @since 0.1.0 - * @category Lang - * @param {*} value The value to check. - * @returns {boolean} Returns `true` if `value` is a boolean, else `false`. - * @example - * - * _.isBoolean(false); - * // => true - * - * _.isBoolean(null); - * // => false - */ - function isBoolean(value) { - return value === true || value === false || - (isObjectLike(value) && objectToString.call(value) == boolTag); - } - - /** - * Checks if `value` is a buffer. - * - * @static - * @memberOf _ - * @since 4.3.0 - * @category Lang - * @param {*} value The value to check. - * @returns {boolean} Returns `true` if `value` is a buffer, else `false`. - * @example - * - * _.isBuffer(new Buffer(2)); - * // => true - * - * _.isBuffer(new Uint8Array(2)); - * // => false - */ - var isBuffer = nativeIsBuffer || stubFalse; - - /** - * Checks if `value` is classified as a `Date` object. - * - * @static - * @memberOf _ - * @since 0.1.0 - * @category Lang - * @param {*} value The value to check. - * @returns {boolean} Returns `true` if `value` is a date object, else `false`. - * @example - * - * _.isDate(new Date); - * // => true - * - * _.isDate('Mon April 23 2012'); - * // => false - */ - var isDate = nodeIsDate ? baseUnary(nodeIsDate) : baseIsDate; - - /** - * Checks if `value` is likely a DOM element. - * - * @static - * @memberOf _ - * @since 0.1.0 - * @category Lang - * @param {*} value The value to check. - * @returns {boolean} Returns `true` if `value` is a DOM element, else `false`. - * @example - * - * _.isElement(document.body); - * // => true - * - * _.isElement(''); - * // => false - */ - function isElement(value) { - return !!value && value.nodeType === 1 && isObjectLike(value) && !isPlainObject(value); - } - - /** - * Checks if `value` is an empty object, collection, map, or set. - * - * Objects are considered empty if they have no own enumerable string keyed - * properties. - * - * Array-like values such as `arguments` objects, arrays, buffers, strings, or - * jQuery-like collections are considered empty if they have a `length` of `0`. - * Similarly, maps and sets are considered empty if they have a `size` of `0`. - * - * @static - * @memberOf _ - * @since 0.1.0 - * @category Lang - * @param {*} value The value to check. - * @returns {boolean} Returns `true` if `value` is empty, else `false`. - * @example - * - * _.isEmpty(null); - * // => true - * - * _.isEmpty(true); - * // => true - * - * _.isEmpty(1); - * // => true - * - * _.isEmpty([1, 2, 3]); - * // => false - * - * _.isEmpty({ 'a': 1 }); - * // => false - */ - function isEmpty(value) { - if (isArrayLike(value) && - (isArray(value) || typeof value == 'string' || - typeof value.splice == 'function' || isBuffer(value) || isArguments(value))) { - return !value.length; - } - var tag = getTag(value); - if (tag == mapTag || tag == setTag) { - return !value.size; - } - if (nonEnumShadows || isPrototype(value)) { - return !nativeKeys(value).length; - } - for (var key in value) { - if (hasOwnProperty.call(value, key)) { - return false; - } - } - return true; - } - - /** - * Performs a deep comparison between two values to determine if they are - * equivalent. - * - * **Note:** This method supports comparing arrays, array buffers, booleans, - * date objects, error objects, maps, numbers, `Object` objects, regexes, - * sets, strings, symbols, and typed arrays. `Object` objects are compared - * by their own, not inherited, enumerable properties. Functions and DOM - * nodes are **not** supported. - * - * @static - * @memberOf _ - * @since 0.1.0 - * @category Lang - * @param {*} value The value to compare. - * @param {*} other The other value to compare. - * @returns {boolean} Returns `true` if the values are equivalent, else `false`. - * @example - * - * var object = { 'a': 1 }; - * var other = { 'a': 1 }; - * - * _.isEqual(object, other); - * // => true - * - * object === other; - * // => false - */ - function isEqual(value, other) { - return baseIsEqual(value, other); - } - - /** - * This method is like `_.isEqual` except that it accepts `customizer` which - * is invoked to compare values. If `customizer` returns `undefined`, comparisons - * are handled by the method instead. The `customizer` is invoked with up to - * six arguments: (objValue, othValue [, index|key, object, other, stack]). - * - * @static - * @memberOf _ - * @since 4.0.0 - * @category Lang - * @param {*} value The value to compare. - * @param {*} other The other value to compare. - * @param {Function} [customizer] The function to customize comparisons. - * @returns {boolean} Returns `true` if the values are equivalent, else `false`. - * @example - * - * function isGreeting(value) { - * return /^h(?:i|ello)$/.test(value); - * } - * - * function customizer(objValue, othValue) { - * if (isGreeting(objValue) && isGreeting(othValue)) { - * return true; - * } - * } - * - * var array = ['hello', 'goodbye']; - * var other = ['hi', 'goodbye']; - * - * _.isEqualWith(array, other, customizer); - * // => true - */ - function isEqualWith(value, other, customizer) { - customizer = typeof customizer == 'function' ? customizer : undefined; - var result = customizer ? customizer(value, other) : undefined; - return result === undefined ? baseIsEqual(value, other, customizer) : !!result; - } - - /** - * Checks if `value` is an `Error`, `EvalError`, `RangeError`, `ReferenceError`, - * `SyntaxError`, `TypeError`, or `URIError` object. - * - * @static - * @memberOf _ - * @since 3.0.0 - * @category Lang - * @param {*} value The value to check. - * @returns {boolean} Returns `true` if `value` is an error object, else `false`. - * @example - * - * _.isError(new Error); - * // => true - * - * _.isError(Error); - * // => false - */ - function isError(value) { - if (!isObjectLike(value)) { - return false; - } - return (objectToString.call(value) == errorTag) || - (typeof value.message == 'string' && typeof value.name == 'string'); - } - - /** - * Checks if `value` is a finite primitive number. - * - * **Note:** This method is based on - * [`Number.isFinite`](https://mdn.io/Number/isFinite). - * - * @static - * @memberOf _ - * @since 0.1.0 - * @category Lang - * @param {*} value The value to check. - * @returns {boolean} Returns `true` if `value` is a finite number, else `false`. - * @example - * - * _.isFinite(3); - * // => true - * - * _.isFinite(Number.MIN_VALUE); - * // => true - * - * _.isFinite(Infinity); - * // => false - * - * _.isFinite('3'); - * // => false - */ - function isFinite(value) { - return typeof value == 'number' && nativeIsFinite(value); - } - - /** - * Checks if `value` is classified as a `Function` object. - * - * @static - * @memberOf _ - * @since 0.1.0 - * @category Lang - * @param {*} value The value to check. - * @returns {boolean} Returns `true` if `value` is a function, else `false`. - * @example - * - * _.isFunction(_); - * // => true - * - * _.isFunction(/abc/); - * // => false - */ - function isFunction(value) { - // The use of `Object#toString` avoids issues with the `typeof` operator - // in Safari 8-9 which returns 'object' for typed array and other constructors. - var tag = isObject(value) ? objectToString.call(value) : ''; - return tag == funcTag || tag == genTag; - } - - /** - * Checks if `value` is an integer. - * - * **Note:** This method is based on - * [`Number.isInteger`](https://mdn.io/Number/isInteger). - * - * @static - * @memberOf _ - * @since 4.0.0 - * @category Lang - * @param {*} value The value to check. - * @returns {boolean} Returns `true` if `value` is an integer, else `false`. - * @example - * - * _.isInteger(3); - * // => true - * - * _.isInteger(Number.MIN_VALUE); - * // => false - * - * _.isInteger(Infinity); - * // => false - * - * _.isInteger('3'); - * // => false - */ - function isInteger(value) { - return typeof value == 'number' && value == toInteger(value); - } - - /** - * Checks if `value` is a valid array-like length. - * - * **Note:** This method is loosely based on - * [`ToLength`](http://ecma-international.org/ecma-262/7.0/#sec-tolength). - * - * @static - * @memberOf _ - * @since 4.0.0 - * @category Lang - * @param {*} value The value to check. - * @returns {boolean} Returns `true` if `value` is a valid length, else `false`. - * @example - * - * _.isLength(3); - * // => true - * - * _.isLength(Number.MIN_VALUE); - * // => false - * - * _.isLength(Infinity); - * // => false - * - * _.isLength('3'); - * // => false - */ - function isLength(value) { - return typeof value == 'number' && - value > -1 && value % 1 == 0 && value <= MAX_SAFE_INTEGER; - } - - /** - * Checks if `value` is the - * [language type](http://www.ecma-international.org/ecma-262/7.0/#sec-ecmascript-language-types) - * of `Object`. (e.g. arrays, functions, objects, regexes, `new Number(0)`, and `new String('')`) - * - * @static - * @memberOf _ - * @since 0.1.0 - * @category Lang - * @param {*} value The value to check. - * @returns {boolean} Returns `true` if `value` is an object, else `false`. - * @example - * - * _.isObject({}); - * // => true - * - * _.isObject([1, 2, 3]); - * // => true - * - * _.isObject(_.noop); - * // => true - * - * _.isObject(null); - * // => false - */ - function isObject(value) { - var type = typeof value; - return !!value && (type == 'object' || type == 'function'); - } - - /** - * Checks if `value` is object-like. A value is object-like if it's not `null` - * and has a `typeof` result of "object". - * - * @static - * @memberOf _ - * @since 4.0.0 - * @category Lang - * @param {*} value The value to check. - * @returns {boolean} Returns `true` if `value` is object-like, else `false`. - * @example - * - * _.isObjectLike({}); - * // => true - * - * _.isObjectLike([1, 2, 3]); - * // => true - * - * _.isObjectLike(_.noop); - * // => false - * - * _.isObjectLike(null); - * // => false - */ - function isObjectLike(value) { - return !!value && typeof value == 'object'; - } - - /** - * Checks if `value` is classified as a `Map` object. - * - * @static - * @memberOf _ - * @since 4.3.0 - * @category Lang - * @param {*} value The value to check. - * @returns {boolean} Returns `true` if `value` is a map, else `false`. - * @example - * - * _.isMap(new Map); - * // => true - * - * _.isMap(new WeakMap); - * // => false - */ - var isMap = nodeIsMap ? baseUnary(nodeIsMap) : baseIsMap; - - /** - * Performs a partial deep comparison between `object` and `source` to - * determine if `object` contains equivalent property values. - * - * **Note:** This method is equivalent to `_.matches` when `source` is - * partially applied. - * - * Partial comparisons will match empty array and empty object `source` - * values against any array or object value, respectively. See `_.isEqual` - * for a list of supported value comparisons. - * - * @static - * @memberOf _ - * @since 3.0.0 - * @category Lang - * @param {Object} object The object to inspect. - * @param {Object} source The object of property values to match. - * @returns {boolean} Returns `true` if `object` is a match, else `false`. - * @example - * - * var object = { 'a': 1, 'b': 2 }; - * - * _.isMatch(object, { 'b': 2 }); - * // => true - * - * _.isMatch(object, { 'b': 1 }); - * // => false - */ - function isMatch(object, source) { - return object === source || baseIsMatch(object, source, getMatchData(source)); - } - - /** - * This method is like `_.isMatch` except that it accepts `customizer` which - * is invoked to compare values. If `customizer` returns `undefined`, comparisons - * are handled by the method instead. The `customizer` is invoked with five - * arguments: (objValue, srcValue, index|key, object, source). - * - * @static - * @memberOf _ - * @since 4.0.0 - * @category Lang - * @param {Object} object The object to inspect. - * @param {Object} source The object of property values to match. - * @param {Function} [customizer] The function to customize comparisons. - * @returns {boolean} Returns `true` if `object` is a match, else `false`. - * @example - * - * function isGreeting(value) { - * return /^h(?:i|ello)$/.test(value); - * } - * - * function customizer(objValue, srcValue) { - * if (isGreeting(objValue) && isGreeting(srcValue)) { - * return true; - * } - * } - * - * var object = { 'greeting': 'hello' }; - * var source = { 'greeting': 'hi' }; - * - * _.isMatchWith(object, source, customizer); - * // => true - */ - function isMatchWith(object, source, customizer) { - customizer = typeof customizer == 'function' ? customizer : undefined; - return baseIsMatch(object, source, getMatchData(source), customizer); - } - - /** - * Checks if `value` is `NaN`. - * - * **Note:** This method is based on - * [`Number.isNaN`](https://mdn.io/Number/isNaN) and is not the same as - * global [`isNaN`](https://mdn.io/isNaN) which returns `true` for - * `undefined` and other non-number values. - * - * @static - * @memberOf _ - * @since 0.1.0 - * @category Lang - * @param {*} value The value to check. - * @returns {boolean} Returns `true` if `value` is `NaN`, else `false`. - * @example - * - * _.isNaN(NaN); - * // => true - * - * _.isNaN(new Number(NaN)); - * // => true - * - * isNaN(undefined); - * // => true - * - * _.isNaN(undefined); - * // => false - */ - function isNaN(value) { - // An `NaN` primitive is the only value that is not equal to itself. - // Perform the `toStringTag` check first to avoid errors with some - // ActiveX objects in IE. - return isNumber(value) && value != +value; - } - - /** - * Checks if `value` is a pristine native function. - * - * **Note:** This method can't reliably detect native functions in the presence - * of the core-js package because core-js circumvents this kind of detection. - * Despite multiple requests, the core-js maintainer has made it clear: any - * attempt to fix the detection will be obstructed. As a result, we're left - * with little choice but to throw an error. Unfortunately, this also affects - * packages, like [babel-polyfill](https://www.npmjs.com/package/babel-polyfill), - * which rely on core-js. - * - * @static - * @memberOf _ - * @since 3.0.0 - * @category Lang - * @param {*} value The value to check. - * @returns {boolean} Returns `true` if `value` is a native function, - * else `false`. - * @example - * - * _.isNative(Array.prototype.push); - * // => true - * - * _.isNative(_); - * // => false - */ - function isNative(value) { - if (isMaskable(value)) { - throw new Error('This method is not supported with core-js. Try https://github.com/es-shims.'); - } - return baseIsNative(value); - } - - /** - * Checks if `value` is `null`. - * - * @static - * @memberOf _ - * @since 0.1.0 - * @category Lang - * @param {*} value The value to check. - * @returns {boolean} Returns `true` if `value` is `null`, else `false`. - * @example - * - * _.isNull(null); - * // => true - * - * _.isNull(void 0); - * // => false - */ - function isNull(value) { - return value === null; - } - - /** - * Checks if `value` is `null` or `undefined`. - * - * @static - * @memberOf _ - * @since 4.0.0 - * @category Lang - * @param {*} value The value to check. - * @returns {boolean} Returns `true` if `value` is nullish, else `false`. - * @example - * - * _.isNil(null); - * // => true - * - * _.isNil(void 0); - * // => true - * - * _.isNil(NaN); - * // => false - */ - function isNil(value) { - return value == null; - } - - /** - * Checks if `value` is classified as a `Number` primitive or object. - * - * **Note:** To exclude `Infinity`, `-Infinity`, and `NaN`, which are - * classified as numbers, use the `_.isFinite` method. - * - * @static - * @memberOf _ - * @since 0.1.0 - * @category Lang - * @param {*} value The value to check. - * @returns {boolean} Returns `true` if `value` is a number, else `false`. - * @example - * - * _.isNumber(3); - * // => true - * - * _.isNumber(Number.MIN_VALUE); - * // => true - * - * _.isNumber(Infinity); - * // => true - * - * _.isNumber('3'); - * // => false - */ - function isNumber(value) { - return typeof value == 'number' || - (isObjectLike(value) && objectToString.call(value) == numberTag); - } - - /** - * Checks if `value` is a plain object, that is, an object created by the - * `Object` constructor or one with a `[[Prototype]]` of `null`. - * - * @static - * @memberOf _ - * @since 0.8.0 - * @category Lang - * @param {*} value The value to check. - * @returns {boolean} Returns `true` if `value` is a plain object, else `false`. - * @example - * - * function Foo() { - * this.a = 1; - * } - * - * _.isPlainObject(new Foo); - * // => false - * - * _.isPlainObject([1, 2, 3]); - * // => false - * - * _.isPlainObject({ 'x': 0, 'y': 0 }); - * // => true - * - * _.isPlainObject(Object.create(null)); - * // => true - */ - function isPlainObject(value) { - if (!isObjectLike(value) || - objectToString.call(value) != objectTag || isHostObject(value)) { - return false; - } - var proto = getPrototype(value); - if (proto === null) { - return true; - } - var Ctor = hasOwnProperty.call(proto, 'constructor') && proto.constructor; - return (typeof Ctor == 'function' && - Ctor instanceof Ctor && funcToString.call(Ctor) == objectCtorString); - } - - /** - * Checks if `value` is classified as a `RegExp` object. - * - * @static - * @memberOf _ - * @since 0.1.0 - * @category Lang - * @param {*} value The value to check. - * @returns {boolean} Returns `true` if `value` is a regexp, else `false`. - * @example - * - * _.isRegExp(/abc/); - * // => true - * - * _.isRegExp('/abc/'); - * // => false - */ - var isRegExp = nodeIsRegExp ? baseUnary(nodeIsRegExp) : baseIsRegExp; - - /** - * Checks if `value` is a safe integer. An integer is safe if it's an IEEE-754 - * double precision number which isn't the result of a rounded unsafe integer. - * - * **Note:** This method is based on - * [`Number.isSafeInteger`](https://mdn.io/Number/isSafeInteger). - * - * @static - * @memberOf _ - * @since 4.0.0 - * @category Lang - * @param {*} value The value to check. - * @returns {boolean} Returns `true` if `value` is a safe integer, else `false`. - * @example - * - * _.isSafeInteger(3); - * // => true - * - * _.isSafeInteger(Number.MIN_VALUE); - * // => false - * - * _.isSafeInteger(Infinity); - * // => false - * - * _.isSafeInteger('3'); - * // => false - */ - function isSafeInteger(value) { - return isInteger(value) && value >= -MAX_SAFE_INTEGER && value <= MAX_SAFE_INTEGER; - } - - /** - * Checks if `value` is classified as a `Set` object. - * - * @static - * @memberOf _ - * @since 4.3.0 - * @category Lang - * @param {*} value The value to check. - * @returns {boolean} Returns `true` if `value` is a set, else `false`. - * @example - * - * _.isSet(new Set); - * // => true - * - * _.isSet(new WeakSet); - * // => false - */ - var isSet = nodeIsSet ? baseUnary(nodeIsSet) : baseIsSet; - - /** - * Checks if `value` is classified as a `String` primitive or object. - * - * @static - * @since 0.1.0 - * @memberOf _ - * @category Lang - * @param {*} value The value to check. - * @returns {boolean} Returns `true` if `value` is a string, else `false`. - * @example - * - * _.isString('abc'); - * // => true - * - * _.isString(1); - * // => false - */ - function isString(value) { - return typeof value == 'string' || - (!isArray(value) && isObjectLike(value) && objectToString.call(value) == stringTag); - } - - /** - * Checks if `value` is classified as a `Symbol` primitive or object. - * - * @static - * @memberOf _ - * @since 4.0.0 - * @category Lang - * @param {*} value The value to check. - * @returns {boolean} Returns `true` if `value` is a symbol, else `false`. - * @example - * - * _.isSymbol(Symbol.iterator); - * // => true - * - * _.isSymbol('abc'); - * // => false - */ - function isSymbol(value) { - return typeof value == 'symbol' || - (isObjectLike(value) && objectToString.call(value) == symbolTag); - } - - /** - * Checks if `value` is classified as a typed array. - * - * @static - * @memberOf _ - * @since 3.0.0 - * @category Lang - * @param {*} value The value to check. - * @returns {boolean} Returns `true` if `value` is a typed array, else `false`. - * @example - * - * _.isTypedArray(new Uint8Array); - * // => true - * - * _.isTypedArray([]); - * // => false - */ - var isTypedArray = nodeIsTypedArray ? baseUnary(nodeIsTypedArray) : baseIsTypedArray; - - /** - * Checks if `value` is `undefined`. - * - * @static - * @since 0.1.0 - * @memberOf _ - * @category Lang - * @param {*} value The value to check. - * @returns {boolean} Returns `true` if `value` is `undefined`, else `false`. - * @example - * - * _.isUndefined(void 0); - * // => true - * - * _.isUndefined(null); - * // => false - */ - function isUndefined(value) { - return value === undefined; - } - - /** - * Checks if `value` is classified as a `WeakMap` object. - * - * @static - * @memberOf _ - * @since 4.3.0 - * @category Lang - * @param {*} value The value to check. - * @returns {boolean} Returns `true` if `value` is a weak map, else `false`. - * @example - * - * _.isWeakMap(new WeakMap); - * // => true - * - * _.isWeakMap(new Map); - * // => false - */ - function isWeakMap(value) { - return isObjectLike(value) && getTag(value) == weakMapTag; - } - - /** - * Checks if `value` is classified as a `WeakSet` object. - * - * @static - * @memberOf _ - * @since 4.3.0 - * @category Lang - * @param {*} value The value to check. - * @returns {boolean} Returns `true` if `value` is a weak set, else `false`. - * @example - * - * _.isWeakSet(new WeakSet); - * // => true - * - * _.isWeakSet(new Set); - * // => false - */ - function isWeakSet(value) { - return isObjectLike(value) && objectToString.call(value) == weakSetTag; - } - - /** - * Checks if `value` is less than `other`. - * - * @static - * @memberOf _ - * @since 3.9.0 - * @category Lang - * @param {*} value The value to compare. - * @param {*} other The other value to compare. - * @returns {boolean} Returns `true` if `value` is less than `other`, - * else `false`. - * @see _.gt - * @example - * - * _.lt(1, 3); - * // => true - * - * _.lt(3, 3); - * // => false - * - * _.lt(3, 1); - * // => false - */ - var lt = createRelationalOperation(baseLt); - - /** - * Checks if `value` is less than or equal to `other`. - * - * @static - * @memberOf _ - * @since 3.9.0 - * @category Lang - * @param {*} value The value to compare. - * @param {*} other The other value to compare. - * @returns {boolean} Returns `true` if `value` is less than or equal to - * `other`, else `false`. - * @see _.gte - * @example - * - * _.lte(1, 3); - * // => true - * - * _.lte(3, 3); - * // => true - * - * _.lte(3, 1); - * // => false - */ - var lte = createRelationalOperation(function(value, other) { - return value <= other; - }); - - /** - * Converts `value` to an array. - * - * @static - * @since 0.1.0 - * @memberOf _ - * @category Lang - * @param {*} value The value to convert. - * @returns {Array} Returns the converted array. - * @example - * - * _.toArray({ 'a': 1, 'b': 2 }); - * // => [1, 2] - * - * _.toArray('abc'); - * // => ['a', 'b', 'c'] - * - * _.toArray(1); - * // => [] - * - * _.toArray(null); - * // => [] - */ - function toArray(value) { - if (!value) { - return []; - } - if (isArrayLike(value)) { - return isString(value) ? stringToArray(value) : copyArray(value); - } - if (iteratorSymbol && value[iteratorSymbol]) { - return iteratorToArray(value[iteratorSymbol]()); - } - var tag = getTag(value), - func = tag == mapTag ? mapToArray : (tag == setTag ? setToArray : values); - - return func(value); - } - - /** - * Converts `value` to a finite number. - * - * @static - * @memberOf _ - * @since 4.12.0 - * @category Lang - * @param {*} value The value to convert. - * @returns {number} Returns the converted number. - * @example - * - * _.toFinite(3.2); - * // => 3.2 - * - * _.toFinite(Number.MIN_VALUE); - * // => 5e-324 - * - * _.toFinite(Infinity); - * // => 1.7976931348623157e+308 - * - * _.toFinite('3.2'); - * // => 3.2 - */ - function toFinite(value) { - if (!value) { - return value === 0 ? value : 0; - } - value = toNumber(value); - if (value === INFINITY || value === -INFINITY) { - var sign = (value < 0 ? -1 : 1); - return sign * MAX_INTEGER; - } - return value === value ? value : 0; - } - - /** - * Converts `value` to an integer. - * - * **Note:** This method is loosely based on - * [`ToInteger`](http://www.ecma-international.org/ecma-262/7.0/#sec-tointeger). - * - * @static - * @memberOf _ - * @since 4.0.0 - * @category Lang - * @param {*} value The value to convert. - * @returns {number} Returns the converted integer. - * @example - * - * _.toInteger(3.2); - * // => 3 - * - * _.toInteger(Number.MIN_VALUE); - * // => 0 - * - * _.toInteger(Infinity); - * // => 1.7976931348623157e+308 - * - * _.toInteger('3.2'); - * // => 3 - */ - function toInteger(value) { - var result = toFinite(value), - remainder = result % 1; - - return result === result ? (remainder ? result - remainder : result) : 0; - } - - /** - * Converts `value` to an integer suitable for use as the length of an - * array-like object. - * - * **Note:** This method is based on - * [`ToLength`](http://ecma-international.org/ecma-262/7.0/#sec-tolength). - * - * @static - * @memberOf _ - * @since 4.0.0 - * @category Lang - * @param {*} value The value to convert. - * @returns {number} Returns the converted integer. - * @example - * - * _.toLength(3.2); - * // => 3 - * - * _.toLength(Number.MIN_VALUE); - * // => 0 - * - * _.toLength(Infinity); - * // => 4294967295 - * - * _.toLength('3.2'); - * // => 3 - */ - function toLength(value) { - return value ? baseClamp(toInteger(value), 0, MAX_ARRAY_LENGTH) : 0; - } - - /** - * Converts `value` to a number. - * - * @static - * @memberOf _ - * @since 4.0.0 - * @category Lang - * @param {*} value The value to process. - * @returns {number} Returns the number. - * @example - * - * _.toNumber(3.2); - * // => 3.2 - * - * _.toNumber(Number.MIN_VALUE); - * // => 5e-324 - * - * _.toNumber(Infinity); - * // => Infinity - * - * _.toNumber('3.2'); - * // => 3.2 - */ - function toNumber(value) { - if (typeof value == 'number') { - return value; - } - if (isSymbol(value)) { - return NAN; - } - if (isObject(value)) { - var other = typeof value.valueOf == 'function' ? value.valueOf() : value; - value = isObject(other) ? (other + '') : other; - } - if (typeof value != 'string') { - return value === 0 ? value : +value; - } - value = value.replace(reTrim, ''); - var isBinary = reIsBinary.test(value); - return (isBinary || reIsOctal.test(value)) - ? freeParseInt(value.slice(2), isBinary ? 2 : 8) - : (reIsBadHex.test(value) ? NAN : +value); - } - - /** - * Converts `value` to a plain object flattening inherited enumerable string - * keyed properties of `value` to own properties of the plain object. - * - * @static - * @memberOf _ - * @since 3.0.0 - * @category Lang - * @param {*} value The value to convert. - * @returns {Object} Returns the converted plain object. - * @example - * - * function Foo() { - * this.b = 2; - * } - * - * Foo.prototype.c = 3; - * - * _.assign({ 'a': 1 }, new Foo); - * // => { 'a': 1, 'b': 2 } - * - * _.assign({ 'a': 1 }, _.toPlainObject(new Foo)); - * // => { 'a': 1, 'b': 2, 'c': 3 } - */ - function toPlainObject(value) { - return copyObject(value, keysIn(value)); - } - - /** - * Converts `value` to a safe integer. A safe integer can be compared and - * represented correctly. - * - * @static - * @memberOf _ - * @since 4.0.0 - * @category Lang - * @param {*} value The value to convert. - * @returns {number} Returns the converted integer. - * @example - * - * _.toSafeInteger(3.2); - * // => 3 - * - * _.toSafeInteger(Number.MIN_VALUE); - * // => 0 - * - * _.toSafeInteger(Infinity); - * // => 9007199254740991 - * - * _.toSafeInteger('3.2'); - * // => 3 - */ - function toSafeInteger(value) { - return baseClamp(toInteger(value), -MAX_SAFE_INTEGER, MAX_SAFE_INTEGER); - } - - /** - * Converts `value` to a string. An empty string is returned for `null` - * and `undefined` values. The sign of `-0` is preserved. - * - * @static - * @memberOf _ - * @since 4.0.0 - * @category Lang - * @param {*} value The value to process. - * @returns {string} Returns the string. - * @example - * - * _.toString(null); - * // => '' - * - * _.toString(-0); - * // => '-0' - * - * _.toString([1, 2, 3]); - * // => '1,2,3' - */ - function toString(value) { - return value == null ? '' : baseToString(value); - } - - /*------------------------------------------------------------------------*/ - - /** - * Assigns own enumerable string keyed properties of source objects to the - * destination object. Source objects are applied from left to right. - * Subsequent sources overwrite property assignments of previous sources. - * - * **Note:** This method mutates `object` and is loosely based on - * [`Object.assign`](https://mdn.io/Object/assign). - * - * @static - * @memberOf _ - * @since 0.10.0 - * @category Object - * @param {Object} object The destination object. - * @param {...Object} [sources] The source objects. - * @returns {Object} Returns `object`. - * @see _.assignIn - * @example - * - * function Foo() { - * this.a = 1; - * } - * - * function Bar() { - * this.c = 3; - * } - * - * Foo.prototype.b = 2; - * Bar.prototype.d = 4; - * - * _.assign({ 'a': 0 }, new Foo, new Bar); - * // => { 'a': 1, 'c': 3 } - */ - var assign = createAssigner(function(object, source) { - if (nonEnumShadows || isPrototype(source) || isArrayLike(source)) { - copyObject(source, keys(source), object); - return; - } - for (var key in source) { - if (hasOwnProperty.call(source, key)) { - assignValue(object, key, source[key]); - } - } - }); - - /** - * This method is like `_.assign` except that it iterates over own and - * inherited source properties. - * - * **Note:** This method mutates `object`. - * - * @static - * @memberOf _ - * @since 4.0.0 - * @alias extend - * @category Object - * @param {Object} object The destination object. - * @param {...Object} [sources] The source objects. - * @returns {Object} Returns `object`. - * @see _.assign - * @example - * - * function Foo() { - * this.a = 1; - * } - * - * function Bar() { - * this.c = 3; - * } - * - * Foo.prototype.b = 2; - * Bar.prototype.d = 4; - * - * _.assignIn({ 'a': 0 }, new Foo, new Bar); - * // => { 'a': 1, 'b': 2, 'c': 3, 'd': 4 } - */ - var assignIn = createAssigner(function(object, source) { - copyObject(source, keysIn(source), object); - }); - - /** - * This method is like `_.assignIn` except that it accepts `customizer` - * which is invoked to produce the assigned values. If `customizer` returns - * `undefined`, assignment is handled by the method instead. The `customizer` - * is invoked with five arguments: (objValue, srcValue, key, object, source). - * - * **Note:** This method mutates `object`. - * - * @static - * @memberOf _ - * @since 4.0.0 - * @alias extendWith - * @category Object - * @param {Object} object The destination object. - * @param {...Object} sources The source objects. - * @param {Function} [customizer] The function to customize assigned values. - * @returns {Object} Returns `object`. - * @see _.assignWith - * @example - * - * function customizer(objValue, srcValue) { - * return _.isUndefined(objValue) ? srcValue : objValue; - * } - * - * var defaults = _.partialRight(_.assignInWith, customizer); - * - * defaults({ 'a': 1 }, { 'b': 2 }, { 'a': 3 }); - * // => { 'a': 1, 'b': 2 } - */ - var assignInWith = createAssigner(function(object, source, srcIndex, customizer) { - copyObject(source, keysIn(source), object, customizer); - }); - - /** - * This method is like `_.assign` except that it accepts `customizer` - * which is invoked to produce the assigned values. If `customizer` returns - * `undefined`, assignment is handled by the method instead. The `customizer` - * is invoked with five arguments: (objValue, srcValue, key, object, source). - * - * **Note:** This method mutates `object`. - * - * @static - * @memberOf _ - * @since 4.0.0 - * @category Object - * @param {Object} object The destination object. - * @param {...Object} sources The source objects. - * @param {Function} [customizer] The function to customize assigned values. - * @returns {Object} Returns `object`. - * @see _.assignInWith - * @example - * - * function customizer(objValue, srcValue) { - * return _.isUndefined(objValue) ? srcValue : objValue; - * } - * - * var defaults = _.partialRight(_.assignWith, customizer); - * - * defaults({ 'a': 1 }, { 'b': 2 }, { 'a': 3 }); - * // => { 'a': 1, 'b': 2 } - */ - var assignWith = createAssigner(function(object, source, srcIndex, customizer) { - copyObject(source, keys(source), object, customizer); - }); - - /** - * Creates an array of values corresponding to `paths` of `object`. - * - * @static - * @memberOf _ - * @since 1.0.0 - * @category Object - * @param {Object} object The object to iterate over. - * @param {...(string|string[])} [paths] The property paths of elements to pick. - * @returns {Array} Returns the picked values. - * @example - * - * var object = { 'a': [{ 'b': { 'c': 3 } }, 4] }; - * - * _.at(object, ['a[0].b.c', 'a[1]']); - * // => [3, 4] - */ - var at = baseRest(function(object, paths) { - return baseAt(object, baseFlatten(paths, 1)); - }); - - /** - * Creates an object that inherits from the `prototype` object. If a - * `properties` object is given, its own enumerable string keyed properties - * are assigned to the created object. - * - * @static - * @memberOf _ - * @since 2.3.0 - * @category Object - * @param {Object} prototype The object to inherit from. - * @param {Object} [properties] The properties to assign to the object. - * @returns {Object} Returns the new object. - * @example - * - * function Shape() { - * this.x = 0; - * this.y = 0; - * } - * - * function Circle() { - * Shape.call(this); - * } - * - * Circle.prototype = _.create(Shape.prototype, { - * 'constructor': Circle - * }); - * - * var circle = new Circle; - * circle instanceof Circle; - * // => true - * - * circle instanceof Shape; - * // => true - */ - function create(prototype, properties) { - var result = baseCreate(prototype); - return properties ? baseAssign(result, properties) : result; - } - - /** - * Assigns own and inherited enumerable string keyed properties of source - * objects to the destination object for all destination properties that - * resolve to `undefined`. Source objects are applied from left to right. - * Once a property is set, additional values of the same property are ignored. - * - * **Note:** This method mutates `object`. - * - * @static - * @since 0.1.0 - * @memberOf _ - * @category Object - * @param {Object} object The destination object. - * @param {...Object} [sources] The source objects. - * @returns {Object} Returns `object`. - * @see _.defaultsDeep - * @example - * - * _.defaults({ 'a': 1 }, { 'b': 2 }, { 'a': 3 }); - * // => { 'a': 1, 'b': 2 } - */ - var defaults = baseRest(function(args) { - args.push(undefined, assignInDefaults); - return apply(assignInWith, undefined, args); - }); - - /** - * This method is like `_.defaults` except that it recursively assigns - * default properties. - * - * **Note:** This method mutates `object`. - * - * @static - * @memberOf _ - * @since 3.10.0 - * @category Object - * @param {Object} object The destination object. - * @param {...Object} [sources] The source objects. - * @returns {Object} Returns `object`. - * @see _.defaults - * @example - * - * _.defaultsDeep({ 'a': { 'b': 2 } }, { 'a': { 'b': 1, 'c': 3 } }); - * // => { 'a': { 'b': 2, 'c': 3 } } - */ - var defaultsDeep = baseRest(function(args) { - args.push(undefined, mergeDefaults); - return apply(mergeWith, undefined, args); - }); - - /** - * This method is like `_.find` except that it returns the key of the first - * element `predicate` returns truthy for instead of the element itself. - * - * @static - * @memberOf _ - * @since 1.1.0 - * @category Object - * @param {Object} object The object to inspect. - * @param {Function} [predicate=_.identity] The function invoked per iteration. - * @returns {string|undefined} Returns the key of the matched element, - * else `undefined`. - * @example - * - * var users = { - * 'barney': { 'age': 36, 'active': true }, - * 'fred': { 'age': 40, 'active': false }, - * 'pebbles': { 'age': 1, 'active': true } - * }; - * - * _.findKey(users, function(o) { return o.age < 40; }); - * // => 'barney' (iteration order is not guaranteed) - * - * // The `_.matches` iteratee shorthand. - * _.findKey(users, { 'age': 1, 'active': true }); - * // => 'pebbles' - * - * // The `_.matchesProperty` iteratee shorthand. - * _.findKey(users, ['active', false]); - * // => 'fred' - * - * // The `_.property` iteratee shorthand. - * _.findKey(users, 'active'); - * // => 'barney' - */ - function findKey(object, predicate) { - return baseFindKey(object, getIteratee(predicate, 3), baseForOwn); - } - - /** - * This method is like `_.findKey` except that it iterates over elements of - * a collection in the opposite order. - * - * @static - * @memberOf _ - * @since 2.0.0 - * @category Object - * @param {Object} object The object to inspect. - * @param {Function} [predicate=_.identity] The function invoked per iteration. - * @returns {string|undefined} Returns the key of the matched element, - * else `undefined`. - * @example - * - * var users = { - * 'barney': { 'age': 36, 'active': true }, - * 'fred': { 'age': 40, 'active': false }, - * 'pebbles': { 'age': 1, 'active': true } - * }; - * - * _.findLastKey(users, function(o) { return o.age < 40; }); - * // => returns 'pebbles' assuming `_.findKey` returns 'barney' - * - * // The `_.matches` iteratee shorthand. - * _.findLastKey(users, { 'age': 36, 'active': true }); - * // => 'barney' - * - * // The `_.matchesProperty` iteratee shorthand. - * _.findLastKey(users, ['active', false]); - * // => 'fred' - * - * // The `_.property` iteratee shorthand. - * _.findLastKey(users, 'active'); - * // => 'pebbles' - */ - function findLastKey(object, predicate) { - return baseFindKey(object, getIteratee(predicate, 3), baseForOwnRight); - } - - /** - * Iterates over own and inherited enumerable string keyed properties of an - * object and invokes `iteratee` for each property. The iteratee is invoked - * with three arguments: (value, key, object). Iteratee functions may exit - * iteration early by explicitly returning `false`. - * - * @static - * @memberOf _ - * @since 0.3.0 - * @category Object - * @param {Object} object The object to iterate over. - * @param {Function} [iteratee=_.identity] The function invoked per iteration. - * @returns {Object} Returns `object`. - * @see _.forInRight - * @example - * - * function Foo() { - * this.a = 1; - * this.b = 2; - * } - * - * Foo.prototype.c = 3; - * - * _.forIn(new Foo, function(value, key) { - * console.log(key); - * }); - * // => Logs 'a', 'b', then 'c' (iteration order is not guaranteed). - */ - function forIn(object, iteratee) { - return object == null - ? object - : baseFor(object, getIteratee(iteratee, 3), keysIn); - } - - /** - * This method is like `_.forIn` except that it iterates over properties of - * `object` in the opposite order. - * - * @static - * @memberOf _ - * @since 2.0.0 - * @category Object - * @param {Object} object The object to iterate over. - * @param {Function} [iteratee=_.identity] The function invoked per iteration. - * @returns {Object} Returns `object`. - * @see _.forIn - * @example - * - * function Foo() { - * this.a = 1; - * this.b = 2; - * } - * - * Foo.prototype.c = 3; - * - * _.forInRight(new Foo, function(value, key) { - * console.log(key); - * }); - * // => Logs 'c', 'b', then 'a' assuming `_.forIn` logs 'a', 'b', then 'c'. - */ - function forInRight(object, iteratee) { - return object == null - ? object - : baseForRight(object, getIteratee(iteratee, 3), keysIn); - } - - /** - * Iterates over own enumerable string keyed properties of an object and - * invokes `iteratee` for each property. The iteratee is invoked with three - * arguments: (value, key, object). Iteratee functions may exit iteration - * early by explicitly returning `false`. - * - * @static - * @memberOf _ - * @since 0.3.0 - * @category Object - * @param {Object} object The object to iterate over. - * @param {Function} [iteratee=_.identity] The function invoked per iteration. - * @returns {Object} Returns `object`. - * @see _.forOwnRight - * @example - * - * function Foo() { - * this.a = 1; - * this.b = 2; - * } - * - * Foo.prototype.c = 3; - * - * _.forOwn(new Foo, function(value, key) { - * console.log(key); - * }); - * // => Logs 'a' then 'b' (iteration order is not guaranteed). - */ - function forOwn(object, iteratee) { - return object && baseForOwn(object, getIteratee(iteratee, 3)); - } - - /** - * This method is like `_.forOwn` except that it iterates over properties of - * `object` in the opposite order. - * - * @static - * @memberOf _ - * @since 2.0.0 - * @category Object - * @param {Object} object The object to iterate over. - * @param {Function} [iteratee=_.identity] The function invoked per iteration. - * @returns {Object} Returns `object`. - * @see _.forOwn - * @example - * - * function Foo() { - * this.a = 1; - * this.b = 2; - * } - * - * Foo.prototype.c = 3; - * - * _.forOwnRight(new Foo, function(value, key) { - * console.log(key); - * }); - * // => Logs 'b' then 'a' assuming `_.forOwn` logs 'a' then 'b'. - */ - function forOwnRight(object, iteratee) { - return object && baseForOwnRight(object, getIteratee(iteratee, 3)); - } - - /** - * Creates an array of function property names from own enumerable properties - * of `object`. - * - * @static - * @since 0.1.0 - * @memberOf _ - * @category Object - * @param {Object} object The object to inspect. - * @returns {Array} Returns the function names. - * @see _.functionsIn - * @example - * - * function Foo() { - * this.a = _.constant('a'); - * this.b = _.constant('b'); - * } - * - * Foo.prototype.c = _.constant('c'); - * - * _.functions(new Foo); - * // => ['a', 'b'] - */ - function functions(object) { - return object == null ? [] : baseFunctions(object, keys(object)); - } - - /** - * Creates an array of function property names from own and inherited - * enumerable properties of `object`. - * - * @static - * @memberOf _ - * @since 4.0.0 - * @category Object - * @param {Object} object The object to inspect. - * @returns {Array} Returns the function names. - * @see _.functions - * @example - * - * function Foo() { - * this.a = _.constant('a'); - * this.b = _.constant('b'); - * } - * - * Foo.prototype.c = _.constant('c'); - * - * _.functionsIn(new Foo); - * // => ['a', 'b', 'c'] - */ - function functionsIn(object) { - return object == null ? [] : baseFunctions(object, keysIn(object)); - } - - /** - * Gets the value at `path` of `object`. If the resolved value is - * `undefined`, the `defaultValue` is returned in its place. - * - * @static - * @memberOf _ - * @since 3.7.0 - * @category Object - * @param {Object} object The object to query. - * @param {Array|string} path The path of the property to get. - * @param {*} [defaultValue] The value returned for `undefined` resolved values. - * @returns {*} Returns the resolved value. - * @example - * - * var object = { 'a': [{ 'b': { 'c': 3 } }] }; - * - * _.get(object, 'a[0].b.c'); - * // => 3 - * - * _.get(object, ['a', '0', 'b', 'c']); - * // => 3 - * - * _.get(object, 'a.b.c', 'default'); - * // => 'default' - */ - function get(object, path, defaultValue) { - var result = object == null ? undefined : baseGet(object, path); - return result === undefined ? defaultValue : result; - } - - /** - * Checks if `path` is a direct property of `object`. - * - * @static - * @since 0.1.0 - * @memberOf _ - * @category Object - * @param {Object} object The object to query. - * @param {Array|string} path The path to check. - * @returns {boolean} Returns `true` if `path` exists, else `false`. - * @example - * - * var object = { 'a': { 'b': 2 } }; - * var other = _.create({ 'a': _.create({ 'b': 2 }) }); - * - * _.has(object, 'a'); - * // => true - * - * _.has(object, 'a.b'); - * // => true - * - * _.has(object, ['a', 'b']); - * // => true - * - * _.has(other, 'a'); - * // => false - */ - function has(object, path) { - return object != null && hasPath(object, path, baseHas); - } - - /** - * Checks if `path` is a direct or inherited property of `object`. - * - * @static - * @memberOf _ - * @since 4.0.0 - * @category Object - * @param {Object} object The object to query. - * @param {Array|string} path The path to check. - * @returns {boolean} Returns `true` if `path` exists, else `false`. - * @example - * - * var object = _.create({ 'a': _.create({ 'b': 2 }) }); - * - * _.hasIn(object, 'a'); - * // => true - * - * _.hasIn(object, 'a.b'); - * // => true - * - * _.hasIn(object, ['a', 'b']); - * // => true - * - * _.hasIn(object, 'b'); - * // => false - */ - function hasIn(object, path) { - return object != null && hasPath(object, path, baseHasIn); - } - - /** - * Creates an object composed of the inverted keys and values of `object`. - * If `object` contains duplicate values, subsequent values overwrite - * property assignments of previous values. - * - * @static - * @memberOf _ - * @since 0.7.0 - * @category Object - * @param {Object} object The object to invert. - * @returns {Object} Returns the new inverted object. - * @example - * - * var object = { 'a': 1, 'b': 2, 'c': 1 }; - * - * _.invert(object); - * // => { '1': 'c', '2': 'b' } - */ - var invert = createInverter(function(result, value, key) { - result[value] = key; - }, constant(identity)); - - /** - * This method is like `_.invert` except that the inverted object is generated - * from the results of running each element of `object` thru `iteratee`. The - * corresponding inverted value of each inverted key is an array of keys - * responsible for generating the inverted value. The iteratee is invoked - * with one argument: (value). - * - * @static - * @memberOf _ - * @since 4.1.0 - * @category Object - * @param {Object} object The object to invert. - * @param {Function} [iteratee=_.identity] The iteratee invoked per element. - * @returns {Object} Returns the new inverted object. - * @example - * - * var object = { 'a': 1, 'b': 2, 'c': 1 }; - * - * _.invertBy(object); - * // => { '1': ['a', 'c'], '2': ['b'] } - * - * _.invertBy(object, function(value) { - * return 'group' + value; - * }); - * // => { 'group1': ['a', 'c'], 'group2': ['b'] } - */ - var invertBy = createInverter(function(result, value, key) { - if (hasOwnProperty.call(result, value)) { - result[value].push(key); - } else { - result[value] = [key]; - } - }, getIteratee); - - /** - * Invokes the method at `path` of `object`. - * - * @static - * @memberOf _ - * @since 4.0.0 - * @category Object - * @param {Object} object The object to query. - * @param {Array|string} path The path of the method to invoke. - * @param {...*} [args] The arguments to invoke the method with. - * @returns {*} Returns the result of the invoked method. - * @example - * - * var object = { 'a': [{ 'b': { 'c': [1, 2, 3, 4] } }] }; - * - * _.invoke(object, 'a[0].b.c.slice', 1, 3); - * // => [2, 3] - */ - var invoke = baseRest(baseInvoke); - - /** - * Creates an array of the own enumerable property names of `object`. - * - * **Note:** Non-object values are coerced to objects. See the - * [ES spec](http://ecma-international.org/ecma-262/7.0/#sec-object.keys) - * for more details. - * - * @static - * @since 0.1.0 - * @memberOf _ - * @category Object - * @param {Object} object The object to query. - * @returns {Array} Returns the array of property names. - * @example - * - * function Foo() { - * this.a = 1; - * this.b = 2; - * } - * - * Foo.prototype.c = 3; - * - * _.keys(new Foo); - * // => ['a', 'b'] (iteration order is not guaranteed) - * - * _.keys('hi'); - * // => ['0', '1'] - */ - function keys(object) { - return isArrayLike(object) ? arrayLikeKeys(object) : baseKeys(object); - } - - /** - * Creates an array of the own and inherited enumerable property names of `object`. - * - * **Note:** Non-object values are coerced to objects. - * - * @static - * @memberOf _ - * @since 3.0.0 - * @category Object - * @param {Object} object The object to query. - * @returns {Array} Returns the array of property names. - * @example - * - * function Foo() { - * this.a = 1; - * this.b = 2; - * } - * - * Foo.prototype.c = 3; - * - * _.keysIn(new Foo); - * // => ['a', 'b', 'c'] (iteration order is not guaranteed) - */ - function keysIn(object) { - return isArrayLike(object) ? arrayLikeKeys(object, true) : baseKeysIn(object); - } - - /** - * The opposite of `_.mapValues`; this method creates an object with the - * same values as `object` and keys generated by running each own enumerable - * string keyed property of `object` thru `iteratee`. The iteratee is invoked - * with three arguments: (value, key, object). - * - * @static - * @memberOf _ - * @since 3.8.0 - * @category Object - * @param {Object} object The object to iterate over. - * @param {Function} [iteratee=_.identity] The function invoked per iteration. - * @returns {Object} Returns the new mapped object. - * @see _.mapValues - * @example - * - * _.mapKeys({ 'a': 1, 'b': 2 }, function(value, key) { - * return key + value; - * }); - * // => { 'a1': 1, 'b2': 2 } - */ - function mapKeys(object, iteratee) { - var result = {}; - iteratee = getIteratee(iteratee, 3); - - baseForOwn(object, function(value, key, object) { - result[iteratee(value, key, object)] = value; - }); - return result; - } - - /** - * Creates an object with the same keys as `object` and values generated - * by running each own enumerable string keyed property of `object` thru - * `iteratee`. The iteratee is invoked with three arguments: - * (value, key, object). - * - * @static - * @memberOf _ - * @since 2.4.0 - * @category Object - * @param {Object} object The object to iterate over. - * @param {Function} [iteratee=_.identity] The function invoked per iteration. - * @returns {Object} Returns the new mapped object. - * @see _.mapKeys - * @example - * - * var users = { - * 'fred': { 'user': 'fred', 'age': 40 }, - * 'pebbles': { 'user': 'pebbles', 'age': 1 } - * }; - * - * _.mapValues(users, function(o) { return o.age; }); - * // => { 'fred': 40, 'pebbles': 1 } (iteration order is not guaranteed) - * - * // The `_.property` iteratee shorthand. - * _.mapValues(users, 'age'); - * // => { 'fred': 40, 'pebbles': 1 } (iteration order is not guaranteed) - */ - function mapValues(object, iteratee) { - var result = {}; - iteratee = getIteratee(iteratee, 3); - - baseForOwn(object, function(value, key, object) { - result[key] = iteratee(value, key, object); - }); - return result; - } - - /** - * This method is like `_.assign` except that it recursively merges own and - * inherited enumerable string keyed properties of source objects into the - * destination object. Source properties that resolve to `undefined` are - * skipped if a destination value exists. Array and plain object properties - * are merged recursively. Other objects and value types are overridden by - * assignment. Source objects are applied from left to right. Subsequent - * sources overwrite property assignments of previous sources. - * - * **Note:** This method mutates `object`. - * - * @static - * @memberOf _ - * @since 0.5.0 - * @category Object - * @param {Object} object The destination object. - * @param {...Object} [sources] The source objects. - * @returns {Object} Returns `object`. - * @example - * - * var object = { - * 'a': [{ 'b': 2 }, { 'd': 4 }] - * }; - * - * var other = { - * 'a': [{ 'c': 3 }, { 'e': 5 }] - * }; - * - * _.merge(object, other); - * // => { 'a': [{ 'b': 2, 'c': 3 }, { 'd': 4, 'e': 5 }] } - */ - var merge = createAssigner(function(object, source, srcIndex) { - baseMerge(object, source, srcIndex); - }); - - /** - * This method is like `_.merge` except that it accepts `customizer` which - * is invoked to produce the merged values of the destination and source - * properties. If `customizer` returns `undefined`, merging is handled by the - * method instead. The `customizer` is invoked with seven arguments: - * (objValue, srcValue, key, object, source, stack). - * - * **Note:** This method mutates `object`. - * - * @static - * @memberOf _ - * @since 4.0.0 - * @category Object - * @param {Object} object The destination object. - * @param {...Object} sources The source objects. - * @param {Function} customizer The function to customize assigned values. - * @returns {Object} Returns `object`. - * @example - * - * function customizer(objValue, srcValue) { - * if (_.isArray(objValue)) { - * return objValue.concat(srcValue); - * } - * } - * - * var object = { 'a': [1], 'b': [2] }; - * var other = { 'a': [3], 'b': [4] }; - * - * _.mergeWith(object, other, customizer); - * // => { 'a': [1, 3], 'b': [2, 4] } - */ - var mergeWith = createAssigner(function(object, source, srcIndex, customizer) { - baseMerge(object, source, srcIndex, customizer); - }); - - /** - * The opposite of `_.pick`; this method creates an object composed of the - * own and inherited enumerable string keyed properties of `object` that are - * not omitted. - * - * @static - * @since 0.1.0 - * @memberOf _ - * @category Object - * @param {Object} object The source object. - * @param {...(string|string[])} [props] The property identifiers to omit. - * @returns {Object} Returns the new object. - * @example - * - * var object = { 'a': 1, 'b': '2', 'c': 3 }; - * - * _.omit(object, ['a', 'c']); - * // => { 'b': '2' } - */ - var omit = baseRest(function(object, props) { - if (object == null) { - return {}; - } - props = arrayMap(baseFlatten(props, 1), toKey); - return basePick(object, baseDifference(getAllKeysIn(object), props)); - }); - - /** - * The opposite of `_.pickBy`; this method creates an object composed of - * the own and inherited enumerable string keyed properties of `object` that - * `predicate` doesn't return truthy for. The predicate is invoked with two - * arguments: (value, key). - * - * @static - * @memberOf _ - * @since 4.0.0 - * @category Object - * @param {Object} object The source object. - * @param {Function} [predicate=_.identity] The function invoked per property. - * @returns {Object} Returns the new object. - * @example - * - * var object = { 'a': 1, 'b': '2', 'c': 3 }; - * - * _.omitBy(object, _.isNumber); - * // => { 'b': '2' } - */ - function omitBy(object, predicate) { - return pickBy(object, negate(getIteratee(predicate))); - } - - /** - * Creates an object composed of the picked `object` properties. - * - * @static - * @since 0.1.0 - * @memberOf _ - * @category Object - * @param {Object} object The source object. - * @param {...(string|string[])} [props] The property identifiers to pick. - * @returns {Object} Returns the new object. - * @example - * - * var object = { 'a': 1, 'b': '2', 'c': 3 }; - * - * _.pick(object, ['a', 'c']); - * // => { 'a': 1, 'c': 3 } - */ - var pick = baseRest(function(object, props) { - return object == null ? {} : basePick(object, arrayMap(baseFlatten(props, 1), toKey)); - }); - - /** - * Creates an object composed of the `object` properties `predicate` returns - * truthy for. The predicate is invoked with two arguments: (value, key). - * - * @static - * @memberOf _ - * @since 4.0.0 - * @category Object - * @param {Object} object The source object. - * @param {Function} [predicate=_.identity] The function invoked per property. - * @returns {Object} Returns the new object. - * @example - * - * var object = { 'a': 1, 'b': '2', 'c': 3 }; - * - * _.pickBy(object, _.isNumber); - * // => { 'a': 1, 'c': 3 } - */ - function pickBy(object, predicate) { - return object == null ? {} : basePickBy(object, getAllKeysIn(object), getIteratee(predicate)); - } - - /** - * This method is like `_.get` except that if the resolved value is a - * function it's invoked with the `this` binding of its parent object and - * its result is returned. - * - * @static - * @since 0.1.0 - * @memberOf _ - * @category Object - * @param {Object} object The object to query. - * @param {Array|string} path The path of the property to resolve. - * @param {*} [defaultValue] The value returned for `undefined` resolved values. - * @returns {*} Returns the resolved value. - * @example - * - * var object = { 'a': [{ 'b': { 'c1': 3, 'c2': _.constant(4) } }] }; - * - * _.result(object, 'a[0].b.c1'); - * // => 3 - * - * _.result(object, 'a[0].b.c2'); - * // => 4 - * - * _.result(object, 'a[0].b.c3', 'default'); - * // => 'default' - * - * _.result(object, 'a[0].b.c3', _.constant('default')); - * // => 'default' - */ - function result(object, path, defaultValue) { - path = isKey(path, object) ? [path] : castPath(path); - - var index = -1, - length = path.length; - - // Ensure the loop is entered when path is empty. - if (!length) { - object = undefined; - length = 1; - } - while (++index < length) { - var value = object == null ? undefined : object[toKey(path[index])]; - if (value === undefined) { - index = length; - value = defaultValue; - } - object = isFunction(value) ? value.call(object) : value; - } - return object; - } - - /** - * Sets the value at `path` of `object`. If a portion of `path` doesn't exist, - * it's created. Arrays are created for missing index properties while objects - * are created for all other missing properties. Use `_.setWith` to customize - * `path` creation. - * - * **Note:** This method mutates `object`. - * - * @static - * @memberOf _ - * @since 3.7.0 - * @category Object - * @param {Object} object The object to modify. - * @param {Array|string} path The path of the property to set. - * @param {*} value The value to set. - * @returns {Object} Returns `object`. - * @example - * - * var object = { 'a': [{ 'b': { 'c': 3 } }] }; - * - * _.set(object, 'a[0].b.c', 4); - * console.log(object.a[0].b.c); - * // => 4 - * - * _.set(object, ['x', '0', 'y', 'z'], 5); - * console.log(object.x[0].y.z); - * // => 5 - */ - function set(object, path, value) { - return object == null ? object : baseSet(object, path, value); - } - - /** - * This method is like `_.set` except that it accepts `customizer` which is - * invoked to produce the objects of `path`. If `customizer` returns `undefined` - * path creation is handled by the method instead. The `customizer` is invoked - * with three arguments: (nsValue, key, nsObject). - * - * **Note:** This method mutates `object`. - * - * @static - * @memberOf _ - * @since 4.0.0 - * @category Object - * @param {Object} object The object to modify. - * @param {Array|string} path The path of the property to set. - * @param {*} value The value to set. - * @param {Function} [customizer] The function to customize assigned values. - * @returns {Object} Returns `object`. - * @example - * - * var object = {}; - * - * _.setWith(object, '[0][1]', 'a', Object); - * // => { '0': { '1': 'a' } } - */ - function setWith(object, path, value, customizer) { - customizer = typeof customizer == 'function' ? customizer : undefined; - return object == null ? object : baseSet(object, path, value, customizer); - } - - /** - * Creates an array of own enumerable string keyed-value pairs for `object` - * which can be consumed by `_.fromPairs`. If `object` is a map or set, its - * entries are returned. - * - * @static - * @memberOf _ - * @since 4.0.0 - * @alias entries - * @category Object - * @param {Object} object The object to query. - * @returns {Array} Returns the key-value pairs. - * @example - * - * function Foo() { - * this.a = 1; - * this.b = 2; - * } - * - * Foo.prototype.c = 3; - * - * _.toPairs(new Foo); - * // => [['a', 1], ['b', 2]] (iteration order is not guaranteed) - */ - var toPairs = createToPairs(keys); - - /** - * Creates an array of own and inherited enumerable string keyed-value pairs - * for `object` which can be consumed by `_.fromPairs`. If `object` is a map - * or set, its entries are returned. - * - * @static - * @memberOf _ - * @since 4.0.0 - * @alias entriesIn - * @category Object - * @param {Object} object The object to query. - * @returns {Array} Returns the key-value pairs. - * @example - * - * function Foo() { - * this.a = 1; - * this.b = 2; - * } - * - * Foo.prototype.c = 3; - * - * _.toPairsIn(new Foo); - * // => [['a', 1], ['b', 2], ['c', 3]] (iteration order is not guaranteed) - */ - var toPairsIn = createToPairs(keysIn); - - /** - * An alternative to `_.reduce`; this method transforms `object` to a new - * `accumulator` object which is the result of running each of its own - * enumerable string keyed properties thru `iteratee`, with each invocation - * potentially mutating the `accumulator` object. If `accumulator` is not - * provided, a new object with the same `[[Prototype]]` will be used. The - * iteratee is invoked with four arguments: (accumulator, value, key, object). - * Iteratee functions may exit iteration early by explicitly returning `false`. - * - * @static - * @memberOf _ - * @since 1.3.0 - * @category Object - * @param {Object} object The object to iterate over. - * @param {Function} [iteratee=_.identity] The function invoked per iteration. - * @param {*} [accumulator] The custom accumulator value. - * @returns {*} Returns the accumulated value. - * @example - * - * _.transform([2, 3, 4], function(result, n) { - * result.push(n *= n); - * return n % 2 == 0; - * }, []); - * // => [4, 9] - * - * _.transform({ 'a': 1, 'b': 2, 'c': 1 }, function(result, value, key) { - * (result[value] || (result[value] = [])).push(key); - * }, {}); - * // => { '1': ['a', 'c'], '2': ['b'] } - */ - function transform(object, iteratee, accumulator) { - var isArr = isArray(object) || isTypedArray(object); - iteratee = getIteratee(iteratee, 4); - - if (accumulator == null) { - if (isArr || isObject(object)) { - var Ctor = object.constructor; - if (isArr) { - accumulator = isArray(object) ? new Ctor : []; - } else { - accumulator = isFunction(Ctor) ? baseCreate(getPrototype(object)) : {}; - } - } else { - accumulator = {}; - } - } - (isArr ? arrayEach : baseForOwn)(object, function(value, index, object) { - return iteratee(accumulator, value, index, object); - }); - return accumulator; - } - - /** - * Removes the property at `path` of `object`. - * - * **Note:** This method mutates `object`. - * - * @static - * @memberOf _ - * @since 4.0.0 - * @category Object - * @param {Object} object The object to modify. - * @param {Array|string} path The path of the property to unset. - * @returns {boolean} Returns `true` if the property is deleted, else `false`. - * @example - * - * var object = { 'a': [{ 'b': { 'c': 7 } }] }; - * _.unset(object, 'a[0].b.c'); - * // => true - * - * console.log(object); - * // => { 'a': [{ 'b': {} }] }; - * - * _.unset(object, ['a', '0', 'b', 'c']); - * // => true - * - * console.log(object); - * // => { 'a': [{ 'b': {} }] }; - */ - function unset(object, path) { - return object == null ? true : baseUnset(object, path); - } - - /** - * This method is like `_.set` except that accepts `updater` to produce the - * value to set. Use `_.updateWith` to customize `path` creation. The `updater` - * is invoked with one argument: (value). - * - * **Note:** This method mutates `object`. - * - * @static - * @memberOf _ - * @since 4.6.0 - * @category Object - * @param {Object} object The object to modify. - * @param {Array|string} path The path of the property to set. - * @param {Function} updater The function to produce the updated value. - * @returns {Object} Returns `object`. - * @example - * - * var object = { 'a': [{ 'b': { 'c': 3 } }] }; - * - * _.update(object, 'a[0].b.c', function(n) { return n * n; }); - * console.log(object.a[0].b.c); - * // => 9 - * - * _.update(object, 'x[0].y.z', function(n) { return n ? n + 1 : 0; }); - * console.log(object.x[0].y.z); - * // => 0 - */ - function update(object, path, updater) { - return object == null ? object : baseUpdate(object, path, castFunction(updater)); - } - - /** - * This method is like `_.update` except that it accepts `customizer` which is - * invoked to produce the objects of `path`. If `customizer` returns `undefined` - * path creation is handled by the method instead. The `customizer` is invoked - * with three arguments: (nsValue, key, nsObject). - * - * **Note:** This method mutates `object`. - * - * @static - * @memberOf _ - * @since 4.6.0 - * @category Object - * @param {Object} object The object to modify. - * @param {Array|string} path The path of the property to set. - * @param {Function} updater The function to produce the updated value. - * @param {Function} [customizer] The function to customize assigned values. - * @returns {Object} Returns `object`. - * @example - * - * var object = {}; - * - * _.updateWith(object, '[0][1]', _.constant('a'), Object); - * // => { '0': { '1': 'a' } } - */ - function updateWith(object, path, updater, customizer) { - customizer = typeof customizer == 'function' ? customizer : undefined; - return object == null ? object : baseUpdate(object, path, castFunction(updater), customizer); - } - - /** - * Creates an array of the own enumerable string keyed property values of `object`. - * - * **Note:** Non-object values are coerced to objects. - * - * @static - * @since 0.1.0 - * @memberOf _ - * @category Object - * @param {Object} object The object to query. - * @returns {Array} Returns the array of property values. - * @example - * - * function Foo() { - * this.a = 1; - * this.b = 2; - * } - * - * Foo.prototype.c = 3; - * - * _.values(new Foo); - * // => [1, 2] (iteration order is not guaranteed) - * - * _.values('hi'); - * // => ['h', 'i'] - */ - function values(object) { - return object ? baseValues(object, keys(object)) : []; - } - - /** - * Creates an array of the own and inherited enumerable string keyed property - * values of `object`. - * - * **Note:** Non-object values are coerced to objects. - * - * @static - * @memberOf _ - * @since 3.0.0 - * @category Object - * @param {Object} object The object to query. - * @returns {Array} Returns the array of property values. - * @example - * - * function Foo() { - * this.a = 1; - * this.b = 2; - * } - * - * Foo.prototype.c = 3; - * - * _.valuesIn(new Foo); - * // => [1, 2, 3] (iteration order is not guaranteed) - */ - function valuesIn(object) { - return object == null ? [] : baseValues(object, keysIn(object)); - } - - /*------------------------------------------------------------------------*/ - - /** - * Clamps `number` within the inclusive `lower` and `upper` bounds. - * - * @static - * @memberOf _ - * @since 4.0.0 - * @category Number - * @param {number} number The number to clamp. - * @param {number} [lower] The lower bound. - * @param {number} upper The upper bound. - * @returns {number} Returns the clamped number. - * @example - * - * _.clamp(-10, -5, 5); - * // => -5 - * - * _.clamp(10, -5, 5); - * // => 5 - */ - function clamp(number, lower, upper) { - if (upper === undefined) { - upper = lower; - lower = undefined; - } - if (upper !== undefined) { - upper = toNumber(upper); - upper = upper === upper ? upper : 0; - } - if (lower !== undefined) { - lower = toNumber(lower); - lower = lower === lower ? lower : 0; - } - return baseClamp(toNumber(number), lower, upper); - } - - /** - * Checks if `n` is between `start` and up to, but not including, `end`. If - * `end` is not specified, it's set to `start` with `start` then set to `0`. - * If `start` is greater than `end` the params are swapped to support - * negative ranges. - * - * @static - * @memberOf _ - * @since 3.3.0 - * @category Number - * @param {number} number The number to check. - * @param {number} [start=0] The start of the range. - * @param {number} end The end of the range. - * @returns {boolean} Returns `true` if `number` is in the range, else `false`. - * @see _.range, _.rangeRight - * @example - * - * _.inRange(3, 2, 4); - * // => true - * - * _.inRange(4, 8); - * // => true - * - * _.inRange(4, 2); - * // => false - * - * _.inRange(2, 2); - * // => false - * - * _.inRange(1.2, 2); - * // => true - * - * _.inRange(5.2, 4); - * // => false - * - * _.inRange(-3, -2, -6); - * // => true - */ - function inRange(number, start, end) { - start = toFinite(start); - if (end === undefined) { - end = start; - start = 0; - } else { - end = toFinite(end); - } - number = toNumber(number); - return baseInRange(number, start, end); - } - - /** - * Produces a random number between the inclusive `lower` and `upper` bounds. - * If only one argument is provided a number between `0` and the given number - * is returned. If `floating` is `true`, or either `lower` or `upper` are - * floats, a floating-point number is returned instead of an integer. - * - * **Note:** JavaScript follows the IEEE-754 standard for resolving - * floating-point values which can produce unexpected results. - * - * @static - * @memberOf _ - * @since 0.7.0 - * @category Number - * @param {number} [lower=0] The lower bound. - * @param {number} [upper=1] The upper bound. - * @param {boolean} [floating] Specify returning a floating-point number. - * @returns {number} Returns the random number. - * @example - * - * _.random(0, 5); - * // => an integer between 0 and 5 - * - * _.random(5); - * // => also an integer between 0 and 5 - * - * _.random(5, true); - * // => a floating-point number between 0 and 5 - * - * _.random(1.2, 5.2); - * // => a floating-point number between 1.2 and 5.2 - */ - function random(lower, upper, floating) { - if (floating && typeof floating != 'boolean' && isIterateeCall(lower, upper, floating)) { - upper = floating = undefined; - } - if (floating === undefined) { - if (typeof upper == 'boolean') { - floating = upper; - upper = undefined; - } - else if (typeof lower == 'boolean') { - floating = lower; - lower = undefined; - } - } - if (lower === undefined && upper === undefined) { - lower = 0; - upper = 1; - } - else { - lower = toFinite(lower); - if (upper === undefined) { - upper = lower; - lower = 0; - } else { - upper = toFinite(upper); - } - } - if (lower > upper) { - var temp = lower; - lower = upper; - upper = temp; - } - if (floating || lower % 1 || upper % 1) { - var rand = nativeRandom(); - return nativeMin(lower + (rand * (upper - lower + freeParseFloat('1e-' + ((rand + '').length - 1)))), upper); - } - return baseRandom(lower, upper); - } - - /*------------------------------------------------------------------------*/ - - /** - * Converts `string` to [camel case](https://en.wikipedia.org/wiki/CamelCase). - * - * @static - * @memberOf _ - * @since 3.0.0 - * @category String - * @param {string} [string=''] The string to convert. - * @returns {string} Returns the camel cased string. - * @example - * - * _.camelCase('Foo Bar'); - * // => 'fooBar' - * - * _.camelCase('--foo-bar--'); - * // => 'fooBar' - * - * _.camelCase('__FOO_BAR__'); - * // => 'fooBar' - */ - var camelCase = createCompounder(function(result, word, index) { - word = word.toLowerCase(); - return result + (index ? capitalize(word) : word); - }); - - /** - * Converts the first character of `string` to upper case and the remaining - * to lower case. - * - * @static - * @memberOf _ - * @since 3.0.0 - * @category String - * @param {string} [string=''] The string to capitalize. - * @returns {string} Returns the capitalized string. - * @example - * - * _.capitalize('FRED'); - * // => 'Fred' - */ - function capitalize(string) { - return upperFirst(toString(string).toLowerCase()); - } - - /** - * Deburrs `string` by converting - * [Latin-1 Supplement](https://en.wikipedia.org/wiki/Latin-1_Supplement_(Unicode_block)#Character_table) - * and [Latin Extended-A](https://en.wikipedia.org/wiki/Latin_Extended-A) - * letters to basic Latin letters and removing - * [combining diacritical marks](https://en.wikipedia.org/wiki/Combining_Diacritical_Marks). - * - * @static - * @memberOf _ - * @since 3.0.0 - * @category String - * @param {string} [string=''] The string to deburr. - * @returns {string} Returns the deburred string. - * @example - * - * _.deburr('déjà vu'); - * // => 'deja vu' - */ - function deburr(string) { - string = toString(string); - return string && string.replace(reLatin, deburrLetter).replace(reComboMark, ''); - } - - /** - * Checks if `string` ends with the given target string. - * - * @static - * @memberOf _ - * @since 3.0.0 - * @category String - * @param {string} [string=''] The string to inspect. - * @param {string} [target] The string to search for. - * @param {number} [position=string.length] The position to search up to. - * @returns {boolean} Returns `true` if `string` ends with `target`, - * else `false`. - * @example - * - * _.endsWith('abc', 'c'); - * // => true - * - * _.endsWith('abc', 'b'); - * // => false - * - * _.endsWith('abc', 'b', 2); - * // => true - */ - function endsWith(string, target, position) { - string = toString(string); - target = baseToString(target); - - var length = string.length; - position = position === undefined - ? length - : baseClamp(toInteger(position), 0, length); - - var end = position; - position -= target.length; - return position >= 0 && string.slice(position, end) == target; - } - - /** - * Converts the characters "&", "<", ">", '"', "'", and "\`" in `string` to - * their corresponding HTML entities. - * - * **Note:** No other characters are escaped. To escape additional - * characters use a third-party library like [_he_](https://mths.be/he). - * - * Though the ">" character is escaped for symmetry, characters like - * ">" and "/" don't need escaping in HTML and have no special meaning - * unless they're part of a tag or unquoted attribute value. See - * [Mathias Bynens's article](https://mathiasbynens.be/notes/ambiguous-ampersands) - * (under "semi-related fun fact") for more details. - * - * Backticks are escaped because in IE < 9, they can break out of - * attribute values or HTML comments. See [#59](https://html5sec.org/#59), - * [#102](https://html5sec.org/#102), [#108](https://html5sec.org/#108), and - * [#133](https://html5sec.org/#133) of the - * [HTML5 Security Cheatsheet](https://html5sec.org/) for more details. - * - * When working with HTML you should always - * [quote attribute values](http://wonko.com/post/html-escaping) to reduce - * XSS vectors. - * - * @static - * @since 0.1.0 - * @memberOf _ - * @category String - * @param {string} [string=''] The string to escape. - * @returns {string} Returns the escaped string. - * @example - * - * _.escape('fred, barney, & pebbles'); - * // => 'fred, barney, & pebbles' - */ - function escape(string) { - string = toString(string); - return (string && reHasUnescapedHtml.test(string)) - ? string.replace(reUnescapedHtml, escapeHtmlChar) - : string; - } - - /** - * Escapes the `RegExp` special characters "^", "$", "\", ".", "*", "+", - * "?", "(", ")", "[", "]", "{", "}", and "|" in `string`. - * - * @static - * @memberOf _ - * @since 3.0.0 - * @category String - * @param {string} [string=''] The string to escape. - * @returns {string} Returns the escaped string. - * @example - * - * _.escapeRegExp('[lodash](https://lodash.com/)'); - * // => '\[lodash\]\(https://lodash\.com/\)' - */ - function escapeRegExp(string) { - string = toString(string); - return (string && reHasRegExpChar.test(string)) - ? string.replace(reRegExpChar, '\\$&') - : string; - } - - /** - * Converts `string` to - * [kebab case](https://en.wikipedia.org/wiki/Letter_case#Special_case_styles). - * - * @static - * @memberOf _ - * @since 3.0.0 - * @category String - * @param {string} [string=''] The string to convert. - * @returns {string} Returns the kebab cased string. - * @example - * - * _.kebabCase('Foo Bar'); - * // => 'foo-bar' - * - * _.kebabCase('fooBar'); - * // => 'foo-bar' - * - * _.kebabCase('__FOO_BAR__'); - * // => 'foo-bar' - */ - var kebabCase = createCompounder(function(result, word, index) { - return result + (index ? '-' : '') + word.toLowerCase(); - }); - - /** - * Converts `string`, as space separated words, to lower case. - * - * @static - * @memberOf _ - * @since 4.0.0 - * @category String - * @param {string} [string=''] The string to convert. - * @returns {string} Returns the lower cased string. - * @example - * - * _.lowerCase('--Foo-Bar--'); - * // => 'foo bar' - * - * _.lowerCase('fooBar'); - * // => 'foo bar' - * - * _.lowerCase('__FOO_BAR__'); - * // => 'foo bar' - */ - var lowerCase = createCompounder(function(result, word, index) { - return result + (index ? ' ' : '') + word.toLowerCase(); - }); - - /** - * Converts the first character of `string` to lower case. - * - * @static - * @memberOf _ - * @since 4.0.0 - * @category String - * @param {string} [string=''] The string to convert. - * @returns {string} Returns the converted string. - * @example - * - * _.lowerFirst('Fred'); - * // => 'fred' - * - * _.lowerFirst('FRED'); - * // => 'fRED' - */ - var lowerFirst = createCaseFirst('toLowerCase'); - - /** - * Pads `string` on the left and right sides if it's shorter than `length`. - * Padding characters are truncated if they can't be evenly divided by `length`. - * - * @static - * @memberOf _ - * @since 3.0.0 - * @category String - * @param {string} [string=''] The string to pad. - * @param {number} [length=0] The padding length. - * @param {string} [chars=' '] The string used as padding. - * @returns {string} Returns the padded string. - * @example - * - * _.pad('abc', 8); - * // => ' abc ' - * - * _.pad('abc', 8, '_-'); - * // => '_-abc_-_' - * - * _.pad('abc', 3); - * // => 'abc' - */ - function pad(string, length, chars) { - string = toString(string); - length = toInteger(length); - - var strLength = length ? stringSize(string) : 0; - if (!length || strLength >= length) { - return string; - } - var mid = (length - strLength) / 2; - return ( - createPadding(nativeFloor(mid), chars) + - string + - createPadding(nativeCeil(mid), chars) - ); - } - - /** - * Pads `string` on the right side if it's shorter than `length`. Padding - * characters are truncated if they exceed `length`. - * - * @static - * @memberOf _ - * @since 4.0.0 - * @category String - * @param {string} [string=''] The string to pad. - * @param {number} [length=0] The padding length. - * @param {string} [chars=' '] The string used as padding. - * @returns {string} Returns the padded string. - * @example - * - * _.padEnd('abc', 6); - * // => 'abc ' - * - * _.padEnd('abc', 6, '_-'); - * // => 'abc_-_' - * - * _.padEnd('abc', 3); - * // => 'abc' - */ - function padEnd(string, length, chars) { - string = toString(string); - length = toInteger(length); - - var strLength = length ? stringSize(string) : 0; - return (length && strLength < length) - ? (string + createPadding(length - strLength, chars)) - : string; - } - - /** - * Pads `string` on the left side if it's shorter than `length`. Padding - * characters are truncated if they exceed `length`. - * - * @static - * @memberOf _ - * @since 4.0.0 - * @category String - * @param {string} [string=''] The string to pad. - * @param {number} [length=0] The padding length. - * @param {string} [chars=' '] The string used as padding. - * @returns {string} Returns the padded string. - * @example - * - * _.padStart('abc', 6); - * // => ' abc' - * - * _.padStart('abc', 6, '_-'); - * // => '_-_abc' - * - * _.padStart('abc', 3); - * // => 'abc' - */ - function padStart(string, length, chars) { - string = toString(string); - length = toInteger(length); - - var strLength = length ? stringSize(string) : 0; - return (length && strLength < length) - ? (createPadding(length - strLength, chars) + string) - : string; - } - - /** - * Converts `string` to an integer of the specified radix. If `radix` is - * `undefined` or `0`, a `radix` of `10` is used unless `value` is a - * hexadecimal, in which case a `radix` of `16` is used. - * - * **Note:** This method aligns with the - * [ES5 implementation](https://es5.github.io/#x15.1.2.2) of `parseInt`. - * - * @static - * @memberOf _ - * @since 1.1.0 - * @category String - * @param {string} string The string to convert. - * @param {number} [radix=10] The radix to interpret `value` by. - * @param- {Object} [guard] Enables use as an iteratee for methods like `_.map`. - * @returns {number} Returns the converted integer. - * @example - * - * _.parseInt('08'); - * // => 8 - * - * _.map(['6', '08', '10'], _.parseInt); - * // => [6, 8, 10] - */ - function parseInt(string, radix, guard) { - // Chrome fails to trim leading whitespace characters. - // See https://bugs.chromium.org/p/v8/issues/detail?id=3109 for more details. - if (guard || radix == null) { - radix = 0; - } else if (radix) { - radix = +radix; - } - string = toString(string).replace(reTrim, ''); - return nativeParseInt(string, radix || (reHasHexPrefix.test(string) ? 16 : 10)); - } - - /** - * Repeats the given string `n` times. - * - * @static - * @memberOf _ - * @since 3.0.0 - * @category String - * @param {string} [string=''] The string to repeat. - * @param {number} [n=1] The number of times to repeat the string. - * @param- {Object} [guard] Enables use as an iteratee for methods like `_.map`. - * @returns {string} Returns the repeated string. - * @example - * - * _.repeat('*', 3); - * // => '***' - * - * _.repeat('abc', 2); - * // => 'abcabc' - * - * _.repeat('abc', 0); - * // => '' - */ - function repeat(string, n, guard) { - if ((guard ? isIterateeCall(string, n, guard) : n === undefined)) { - n = 1; - } else { - n = toInteger(n); - } - return baseRepeat(toString(string), n); - } - - /** - * Replaces matches for `pattern` in `string` with `replacement`. - * - * **Note:** This method is based on - * [`String#replace`](https://mdn.io/String/replace). - * - * @static - * @memberOf _ - * @since 4.0.0 - * @category String - * @param {string} [string=''] The string to modify. - * @param {RegExp|string} pattern The pattern to replace. - * @param {Function|string} replacement The match replacement. - * @returns {string} Returns the modified string. - * @example - * - * _.replace('Hi Fred', 'Fred', 'Barney'); - * // => 'Hi Barney' - */ - function replace() { - var args = arguments, - string = toString(args[0]); - - return args.length < 3 ? string : string.replace(args[1], args[2]); - } - - /** - * Converts `string` to - * [snake case](https://en.wikipedia.org/wiki/Snake_case). - * - * @static - * @memberOf _ - * @since 3.0.0 - * @category String - * @param {string} [string=''] The string to convert. - * @returns {string} Returns the snake cased string. - * @example - * - * _.snakeCase('Foo Bar'); - * // => 'foo_bar' - * - * _.snakeCase('fooBar'); - * // => 'foo_bar' - * - * _.snakeCase('--FOO-BAR--'); - * // => 'foo_bar' - */ - var snakeCase = createCompounder(function(result, word, index) { - return result + (index ? '_' : '') + word.toLowerCase(); - }); - - /** - * Splits `string` by `separator`. - * - * **Note:** This method is based on - * [`String#split`](https://mdn.io/String/split). - * - * @static - * @memberOf _ - * @since 4.0.0 - * @category String - * @param {string} [string=''] The string to split. - * @param {RegExp|string} separator The separator pattern to split by. - * @param {number} [limit] The length to truncate results to. - * @returns {Array} Returns the string segments. - * @example - * - * _.split('a-b-c', '-', 2); - * // => ['a', 'b'] - */ - function split(string, separator, limit) { - if (limit && typeof limit != 'number' && isIterateeCall(string, separator, limit)) { - separator = limit = undefined; - } - limit = limit === undefined ? MAX_ARRAY_LENGTH : limit >>> 0; - if (!limit) { - return []; - } - string = toString(string); - if (string && ( - typeof separator == 'string' || - (separator != null && !isRegExp(separator)) - )) { - separator = baseToString(separator); - if (!separator && hasUnicode(string)) { - return castSlice(stringToArray(string), 0, limit); - } - } - return string.split(separator, limit); - } - - /** - * Converts `string` to - * [start case](https://en.wikipedia.org/wiki/Letter_case#Stylistic_or_specialised_usage). - * - * @static - * @memberOf _ - * @since 3.1.0 - * @category String - * @param {string} [string=''] The string to convert. - * @returns {string} Returns the start cased string. - * @example - * - * _.startCase('--foo-bar--'); - * // => 'Foo Bar' - * - * _.startCase('fooBar'); - * // => 'Foo Bar' - * - * _.startCase('__FOO_BAR__'); - * // => 'FOO BAR' - */ - var startCase = createCompounder(function(result, word, index) { - return result + (index ? ' ' : '') + upperFirst(word); - }); - - /** - * Checks if `string` starts with the given target string. - * - * @static - * @memberOf _ - * @since 3.0.0 - * @category String - * @param {string} [string=''] The string to inspect. - * @param {string} [target] The string to search for. - * @param {number} [position=0] The position to search from. - * @returns {boolean} Returns `true` if `string` starts with `target`, - * else `false`. - * @example - * - * _.startsWith('abc', 'a'); - * // => true - * - * _.startsWith('abc', 'b'); - * // => false - * - * _.startsWith('abc', 'b', 1); - * // => true - */ - function startsWith(string, target, position) { - string = toString(string); - position = baseClamp(toInteger(position), 0, string.length); - target = baseToString(target); - return string.slice(position, position + target.length) == target; - } - - /** - * Creates a compiled template function that can interpolate data properties - * in "interpolate" delimiters, HTML-escape interpolated data properties in - * "escape" delimiters, and execute JavaScript in "evaluate" delimiters. Data - * properties may be accessed as free variables in the template. If a setting - * object is given, it takes precedence over `_.templateSettings` values. - * - * **Note:** In the development build `_.template` utilizes - * [sourceURLs](http://www.html5rocks.com/en/tutorials/developertools/sourcemaps/#toc-sourceurl) - * for easier debugging. - * - * For more information on precompiling templates see - * [lodash's custom builds documentation](https://lodash.com/custom-builds). - * - * For more information on Chrome extension sandboxes see - * [Chrome's extensions documentation](https://developer.chrome.com/extensions/sandboxingEval). - * - * @static - * @since 0.1.0 - * @memberOf _ - * @category String - * @param {string} [string=''] The template string. - * @param {Object} [options={}] The options object. - * @param {RegExp} [options.escape=_.templateSettings.escape] - * The HTML "escape" delimiter. - * @param {RegExp} [options.evaluate=_.templateSettings.evaluate] - * The "evaluate" delimiter. - * @param {Object} [options.imports=_.templateSettings.imports] - * An object to import into the template as free variables. - * @param {RegExp} [options.interpolate=_.templateSettings.interpolate] - * The "interpolate" delimiter. - * @param {string} [options.sourceURL='lodash.templateSources[n]'] - * The sourceURL of the compiled template. - * @param {string} [options.variable='obj'] - * The data object variable name. - * @param- {Object} [guard] Enables use as an iteratee for methods like `_.map`. - * @returns {Function} Returns the compiled template function. - * @example - * - * // Use the "interpolate" delimiter to create a compiled template. - * var compiled = _.template('hello <%= user %>!'); - * compiled({ 'user': 'fred' }); - * // => 'hello fred!' - * - * // Use the HTML "escape" delimiter to escape data property values. - * var compiled = _.template('<%- value %>'); - * compiled({ 'value': ' \ No newline at end of file From bcfbc9bb4888cb09c5d9614d2e5e2d03ab1609a2 Mon Sep 17 00:00:00 2001 From: hackyminer Date: Mon, 16 Apr 2018 17:18:06 +0900 Subject: [PATCH 04/10] fixup statscontroller --- public/js/controllers/StatsController.js | 6 +++--- public/tpl/header.html | 2 +- public/views/stats/index.html | 2 +- 3 files changed, 5 insertions(+), 5 deletions(-) diff --git a/public/js/controllers/StatsController.js b/public/js/controllers/StatsController.js index 7c3cf387c..0757b3e25 100755 --- a/public/js/controllers/StatsController.js +++ b/public/js/controllers/StatsController.js @@ -5,13 +5,13 @@ angular.module('BlocksApp').controller('StatsController', function($stateParams, /* Chart types: - etc_hashrate: ETC Hashrate Growth + hashrate: Hashrate Growth miner_hashrate: Miner Hashrate Distribution */ const CHART_TYPES = { - "etc_hashrate": { - "title": "ETC Hashrate Growth" + "hashrate": { + "title": "Hashrate Growth" }, "miner_hashrate": { "title": "Miner Hashrate Distribution" diff --git a/public/tpl/header.html b/public/tpl/header.html index 1af8643ed..2c3cc6f54 100755 --- a/public/tpl/header.html +++ b/public/tpl/header.html @@ -93,7 +93,7 @@
  • - + HashRate Growth Chart
  • diff --git a/public/views/stats/index.html b/public/views/stats/index.html index 53b28b6fa..fefcd6803 100644 --- a/public/views/stats/index.html +++ b/public/views/stats/index.html @@ -4,7 +4,7 @@
    - +
    From 2603e7806f54c0e16c79f35991c1f5ee56f5034f Mon Sep 17 00:00:00 2001 From: hackyminer Date: Mon, 16 Apr 2018 10:45:20 +0900 Subject: [PATCH 05/10] fixed getMinerStats()/getHashrates() etc. * aggregate() with proper match options * verify range/days req params * fixed tools/stats.js to support rescan with a custom interval. * show percent at a tooltip --- public/js/controllers/StatsController.js | 7 +- routes/stats.js | 118 ++++++++++++++++++----- tools/stats.js | 92 ++++++++++++++---- 3 files changed, 174 insertions(+), 43 deletions(-) diff --git a/public/js/controllers/StatsController.js b/public/js/controllers/StatsController.js index 0757b3e25..11e493f67 100755 --- a/public/js/controllers/StatsController.js +++ b/public/js/controllers/StatsController.js @@ -47,6 +47,11 @@ angular.module('BlocksApp').controller('StatsController', function($stateParams, * Created by chenxiangyu on 2016/8/5. */ scope.init = function(dataset, chartid) { + var total = 0; + dataset.forEach(function(d) { + total += d.count; + }); + var svg = d3.select(chartid) .append("g"); @@ -139,7 +144,7 @@ angular.module('BlocksApp').controller('StatsController', function($stateParams, div.style("left", d3.event.pageX + 10 + "px"); div.style("top", d3.event.pageY - 25 + "px"); div.style("display", "inline-block"); - div.html((d.data._id) + "
    " + (d.data.count) + " "); + div.html((d.data._id) + "
    " + (d.data.count) + "
    (" + d3.format(".2%")(d.data.count / total) + ")"); }); slice .on("mouseout", function (d) { diff --git a/routes/stats.js b/routes/stats.js index 0ddcc21bc..dc7fb3dfa 100644 --- a/routes/stats.js +++ b/routes/stats.js @@ -14,55 +14,125 @@ module.exports = function(req, res) { res.status(400).send(); else if (req.body.action=="miners") - getMinerStats(res) + getMinerStats(req, res) else if (req.body.action=="hashrate") getHashrate(res); else if (req.body.action=="hashrates") - getHashrates(res); + getHashrates(req, res); } /** Aggregate miner stats **/ -var getMinerStats = function(res) { - BlockStat.aggregate([ - { $group: { - _id: '$miner', - count: {$sum: 1} } - } - ], function (err, result) { - if (err) { - console.error(err); - res.status(500).send(); - } else { - res.write(JSON.stringify(result)); - res.end(); - } +var getMinerStats = function(req, res) { + var range = 6*60*60; // 6 hours + // check validity of range + if (req.body.range && req.body.range < 60 * 60 * 24 * 7) { + range = parseInt(req.body.range); + if (range < 1800) { // minimal 30 minutes + range = 1800; + } + } + + var timebefore = parseInt((new Date())/1000) - range; + Block.find({ timestamp: { $lte: timebefore } }, "timestamp number") + .lean(true).sort('-number').limit(1).exec(function (err, docs) { + if (err || !docs) { + console.error(err); + res.status(500).send(); + res.end(); + return; + } + var blockNumber = docs[0].number; + console.log('getMinerStats(): blockNumber = ' + blockNumber); + Block.aggregate([ + { $match: { number: { $gte: blockNumber } } }, + { $group: { + _id: '$miner', + timestamp: {$min: '$timestamp' }, + count: {$sum: 1} } + } + ], function (err, result) { + if (err) { + console.error(err); + res.status(500).send(); + } else { + res.write(JSON.stringify(result)); + res.end(); + } + }); }); } /** Aggregate network hashrates **/ -var getHashrates = function(res) { - BlockStat.aggregate([{ - $group: { +var getHashrates = function(req, res) { + // setup default range + //var range = 7 * 24 * 60 * 60; /* 7 days */ + //var range = 14 * 24 * 60 * 60; /* 14 days */ + //var range = 30 * 24 * 60 * 60; /* 1 months */ + //var range = 2 * 30 * 24 * 60 * 60; /* 2 months */ + var range = 6 * 30 * 24 * 60 * 60; /* 6 months */ + if (req.body.days && req.body.days <= 365) { + var days = parseInt(req.body.days); + if (days <= 1) { + days = 1; + } + range = days * 60 * 60 * 24; + } else if (req.body.range && req.body.range < 31536000 /* 60 * 60 * 24 * 365 */) { + range = parseInt(req.body.range); + if (range < 30 * 60) { + range = 30 * 60; /* minimal range */ + } + } + + // select mod + var rngs = [ 30*60, 60*60, 2*60*60, 4*60*60, 6*60*60, + 12*60*60, 24*60*60, 7*24*60*60, 14*24*60*60, 30*24*60*60 + ]; + var mods = [ 1, 1, 2, 10, 10, + 15, 30, 15*60, 30*60, 30*60, + 60*60 + ]; + var i = 0; + rngs.forEach(function(r) { + if (range > r) { + i++; + } + return; + }); + var mod = mods[i]; + + var timestamp = parseInt((new Date())/1000) - range; + + BlockStat.aggregate([ + { $match: { timestamp: { $gte: timestamp } } }, + { $group: { _id: { timestamp: { - $subtract: [ '$timestamp', { $mod: [ '$timestamp', 3600 ] } ] + $subtract: [ '$timestamp', { $mod: [ '$timestamp', mod ] } ] } }, blockTime: { $avg: '$blockTime' }, - difficulty: { $max: '$difficulty' } + difficulty: { $max: '$difficulty' }, + count: { $sum: 1 } + }}, + { $project: { + "_id": 0, + "timestamp": '$_id.timestamp', + "blockTime": 1, + "difficulty": 1, + "count": 1, } - }]).sort('_id.timestamp').exec(function(err, docs) { + }]).sort('timestamp').exec(function(err, docs) { var hashrates = []; docs.forEach(function(doc) { doc.instantHashrate = doc.difficulty / doc.blockTime; - doc.unixtime = doc._id.timestamp; - doc.timestamp = doc._id.timestamp; + doc.unixtime = doc.timestamp; /* FIXME */ + doc.timestamp = doc.timestamp; }); res.write(JSON.stringify({"hashrates": docs})); res.end(); diff --git a/tools/stats.js b/tools/stats.js index 8b9763c22..11154cbc4 100644 --- a/tools/stats.js +++ b/tools/stats.js @@ -7,20 +7,35 @@ var Web3 = require('web3'); var mongoose = require( 'mongoose' ); var BlockStat = require( '../db.js' ).BlockStat; -var updateStats = function() { - var web3 = new Web3(new Web3.providers.HttpProvider('http://localhost:8545')); +var updateStats = function(range, interval, rescan) { + var web3 = new Web3(new Web3.providers.HttpProvider('http://localhost:8545')); mongoose.connect(process.env.MONGO_URI || 'mongodb://localhost/blockDB'); mongoose.set('debug', true); var latestBlock = web3.eth.blockNumber; - getStats(web3, latestBlock, null, latestBlock - 1000); + + interval = Math.abs(parseInt(interval)); + if (!range) { + range = 1000; + } + range *= interval; + if (interval >= 10) { + latestBlock -= latestBlock % interval; + } + getStats(web3, latestBlock, null, latestBlock - range, interval, rescan); } -var getStats = function(web3, blockNumber, nextBlock, endBlock) { - if (blockNumber <= endBlock) - process.exit(9); +var getStats = function(web3, blockNumber, nextBlock, endNumber, interval, rescan) { + if (endNumber < 0) + endNumber = 0; + if (blockNumber <= endNumber) { + if (rescan) { + process.exit(9); + } + return; + } if(web3.isConnected()) { @@ -35,9 +50,9 @@ var getStats = function(web3, blockNumber, nextBlock, endBlock) { } else { if (nextBlock) - checkBlockDBExistsThenWrite(web3, blockData, nextBlock.timestamp); + checkBlockDBExistsThenWrite(web3, blockData, nextBlock, endNumber, interval, rescan); else - checkBlockDBExistsThenWrite(web3, blockData, parseInt(Date.now()/1000)); + checkBlockDBExistsThenWrite(web3, blockData, null, endNumber, interval, rescan); } }); } else { @@ -52,9 +67,9 @@ var getStats = function(web3, blockNumber, nextBlock, endBlock) { * if record exists: abort * if record DNE: write a file for the block */ -var checkBlockDBExistsThenWrite = function(web3, blockData, nextTime) { +var checkBlockDBExistsThenWrite = function(web3, blockData, nextBlock, endNumber, interval, rescan) { BlockStat.find({number: blockData.number}, function (err, b) { - if (!b.length) { + if (!b.length && nextBlock) { // calc hashrate, txCount, blocktime, uncleCount var stat = { "number": blockData.number, @@ -64,7 +79,7 @@ var checkBlockDBExistsThenWrite = function(web3, blockData, nextTime) { "gasUsed": blockData.gasUsed, "gasLimit": blockData.gasLimit, "miner": blockData.miner, - "blockTime": nextTime - blockData.timestamp, + "blockTime": (nextBlock.timestamp - blockData.timestamp) / (nextBlock.number - blockData.number), "uncleCount": blockData.uncles.length } new BlockStat(stat).save( function( err, s, count ){ @@ -77,13 +92,20 @@ var checkBlockDBExistsThenWrite = function(web3, blockData, nextTime) { } else { console.log('DB successfully written for block number ' + blockData.number.toString() ); - getStats(web3, blockData.number - 1, blockData); + getStats(web3, blockData.number - interval, blockData, endNumber, interval, rescan); } }); } else { - console.log('Aborting because block number: ' + blockData.number.toString() + - ' already exists in DB.'); - return; + if (rescan || !nextBlock) { + getStats(web3, blockData.number - interval, blockData, endNumber, interval, rescan); + if (nextBlock) { + console.log('WARN: block number: ' + blockData.number.toString() + ' already exists in DB.'); + } + } else { + console.error('Aborting because block number: ' + blockData.number.toString() + + ' already exists in DB.'); + return; + } } }) @@ -95,6 +117,40 @@ var checkBlockDBExistsThenWrite = function(web3, blockData, nextTime) { var minutes = 1; statInterval = minutes * 60 * 1000; -setInterval(function() { - updateStats(); -}, statInterval); +var rescan = false; /* rescan: true - rescan range */ +var range = 1000; +var interval = 100; + +/** + * RESCAN=1000:100000 means interval;range + * + * Usage: + * RESCAN=1000:100000 node tools/stats.js + */ +if (process.env.RESCAN) { + var tmp = process.env.RESCAN.split(/:/); + if (tmp.length > 1) { + interval = Math.abs(parseInt(tmp[0])); + if (tmp[1]) { + range = Math.abs(parseInt(tmp[1])); + } + } + var i = interval; + var j = 0; + for (var j = 0; i >= 10; j++) { + i = parseInt(i / 10); + } + interval = Math.pow(10, j); + console.log('Selected interval = ' + interval); + + rescan = true; +} + +// run +updateStats(range, interval, rescan); + +if (!rescan) { + setInterval(function() { + updateStats(range, interval); + }, statInterval); +} From 559bd2cd16e6991d293d563a1ab2967ee9753284 Mon Sep 17 00:00:00 2001 From: hackyminer Date: Thu, 19 Apr 2018 02:02:16 +0900 Subject: [PATCH 06/10] FIXME fixed bomb chart --- public/js/controllers/StatsController.js | 5 +++-- 1 file changed, 3 insertions(+), 2 deletions(-) diff --git a/public/js/controllers/StatsController.js b/public/js/controllers/StatsController.js index 11e493f67..4c14c8ee5 100755 --- a/public/js/controllers/StatsController.js +++ b/public/js/controllers/StatsController.js @@ -697,10 +697,11 @@ angular.module('BlocksApp').controller('StatsController', function($stateParams, template: '', scope: true, link: function(scope, elem, attrs) { - $http.post("/stats", {"action": "hashrates"}) + $http.post("/stats", {"action": "hashrates", "range": 12 * 30 * 24 * 60 * 60 }) .then(function(res) { //console.log(res.data); + res.data.hashrates.forEach(function(d) { d.difficulty = d.difficulty / d.blockTime; }); // FIXME scope.init(res.data, '#bombchartwithecip1010'); }); @@ -788,7 +789,7 @@ angular.module('BlocksApp').controller('StatsController', function($stateParams, var bomb_array_with_ECIP_1010 =[]; //var base_diff = arg2.base_diff; - var base_diff = arg1.hashrates[0].difficulty; // FIXME + var base_diff = 7580000000000.00; // FIXME From f84ba9192c0175f06d4724ead1f7be27c013a39f Mon Sep 17 00:00:00 2001 From: hackyminer Date: Thu, 19 Apr 2018 02:47:48 +0900 Subject: [PATCH 07/10] replace the address of known miners to their names. --- config.json | 13 ++++++++++++- routes/stats.js | 20 ++++++++++++++++++++ 2 files changed, 32 insertions(+), 1 deletion(-) diff --git a/config.json b/config.json index 8892e2352..d86ce3502 100644 --- a/config.json +++ b/config.json @@ -10,6 +10,17 @@ "symbol": "ETC", "name": "Ethereum Classic", "title": "Ethereum Classic Block Explorer", - "author": "Elaine" + "author": "Elaine", + "miners": { + "0xdf7d7e053933b5cc24372f878c90e62dadad5d42": "EtherMine", + "0xc91716199ccde49dc4fafaeb68925127ac80443f": "F2Pool", + "0x9eab4b0fc468a7f5d46228bf5a76cb52370d068d": "NanoPool", + "0x8c5535afdbdeea80adedc955420f684931bf91e0": "MiningPoolHub", + "0x4750e296949b747df1585aa67beee8be903dd560": "UUPool", + "0xef224fa5fad302b51f38898f4df499d7af127af0": "91pool", + "0x00d29bfdf5f8d2d0466da4b948f37692ca50867a": "2miners", + "0x4c2b4e716883a2c3f6b980b70b577e54b9441060": "ETCPool PL", + "0xd144e30a0571aaf0d0c050070ac435deba461fab": "Clona Network" + } } } \ No newline at end of file diff --git a/routes/stats.js b/routes/stats.js index dc7fb3dfa..8824c4eb5 100644 --- a/routes/stats.js +++ b/routes/stats.js @@ -8,6 +8,19 @@ var async = require('async'); var etherUnits = require(__lib + "etherUnits.js") +var config = {}; +try { + config = require('../config.json'); +} catch(e) { + if (e.code == 'MODULE_NOT_FOUND') { + console.log('No config file found. Using default configuration... (tools/config.json)'); + config = require('../tools/config.json'); + } else { + throw e; + process.exit(1); + } +} + module.exports = function(req, res) { if (!("action" in req.body)) @@ -59,6 +72,13 @@ var getMinerStats = function(req, res) { console.error(err); res.status(500).send(); } else { + if (config.settings.miners) { + result.forEach(function(m) { + if (config.settings.miners[m._id]) { + m._id = config.settings.miners[m._id]; + } + }); + } res.write(JSON.stringify(result)); res.end(); } From 4f1f09c7f574db0d2585e870b1a22b9572716181 Mon Sep 17 00:00:00 2001 From: hackyminer Date: Wed, 25 Apr 2018 03:16:30 +0900 Subject: [PATCH 08/10] public: tuning chart style --- public/css/stats.css | 6 ++++-- public/js/controllers/StatsController.js | 5 ++--- 2 files changed, 6 insertions(+), 5 deletions(-) diff --git a/public/css/stats.css b/public/css/stats.css index 45b84d45f..e20af4029 100644 --- a/public/css/stats.css +++ b/public/css/stats.css @@ -10,7 +10,7 @@ text.shadow { path { stroke: steelblue; - stroke-width: 2; + stroke-width: 1; fill: none; } @@ -48,6 +48,8 @@ path { path.slice{ stroke-width:2px; + stroke: #3a3a3a; + opacity: .7; } polyline{ @@ -80,5 +82,5 @@ path { text-align: center; } text { - font: 12px sans-serif; + font: 12px "Helvetica Neue", Helvetica, Arial, sans-serif; } \ No newline at end of file diff --git a/public/js/controllers/StatsController.js b/public/js/controllers/StatsController.js index 4c14c8ee5..e0a1804cf 100755 --- a/public/js/controllers/StatsController.js +++ b/public/js/controllers/StatsController.js @@ -177,8 +177,7 @@ angular.module('BlocksApp').controller('StatsController', function($stateParams, .style('fill', function (d,i) { //console.log(i); return color(d._id); - }) - .style('stroke', color); + }); legend.append('text') @@ -310,7 +309,7 @@ angular.module('BlocksApp').controller('StatsController', function($stateParams, return d3.svg.axis() .scale(x) .orient("bottom") - .ticks(8) + .ticks(30) } // function for the y grid lines From b3110f2bbccd52fa16bf808944df9d7527c0c85f Mon Sep 17 00:00:00 2001 From: hackyminer Date: Thu, 10 May 2018 21:33:45 +0900 Subject: [PATCH 09/10] fix for mobile layout --- public/js/controllers/StatsController.js | 44 ++++++++++++++++-------- 1 file changed, 30 insertions(+), 14 deletions(-) diff --git a/public/js/controllers/StatsController.js b/public/js/controllers/StatsController.js index e0a1804cf..2d8a83ae0 100755 --- a/public/js/controllers/StatsController.js +++ b/public/js/controllers/StatsController.js @@ -68,7 +68,14 @@ angular.module('BlocksApp').controller('StatsController', function($stateParams, var width = parseInt(d3.select(chartid).style("width")); var height = parseInt(d3.select(chartid).style("height")); - var radius = Math.min(1000, 450) / 2; + // fix for mobile layout + var radius; + if (window.innerWidth < 800) { + radius = Math.min(width, 450) * 0.6; + d3.select(chartid).attr("height", '700px'); + } else { + radius = 450 * 0.5; + } var pie = d3.layout.pie() .sort(null) @@ -91,8 +98,12 @@ angular.module('BlocksApp').controller('StatsController', function($stateParams, var div = d3.select("body").append("div").attr("class", "toolTip"); - svg.attr("transform", "translate(" + width / 2 + "," + height / 2 + ")"); - svg.attr("transform", "translate(" + 200 + "," + 200 + ")"); + // fix for mobile layout + if (window.innerWidth < 800) { + svg.attr("transform", "translate(" + width / 2 + "," + height / 2 + ")"); + } else { + svg.attr("transform", "translate(" + 200 + "," + 200 + ")"); + } var colorRange = d3.scale.category20(); var color = d3.scale.ordinal() @@ -166,9 +177,16 @@ angular.module('BlocksApp').controller('StatsController', function($stateParams, var height = legendRectSize + legendSpacing; var offset = height * color.domain().length / 2; var horz = -3 * legendRectSize; - //var vert = i * height - offset; - var vert = i * height - offset; - return 'translate(' + 250 + ',' + vert + ')'; + var vert = i * height; + var tx, ty; + if (window.innerWidth > 800) { + tx = 250; + ty = vert - offset; + } else { + tx = - radius * 0.8; + ty = vert + radius; + } + return 'translate(' + tx + ',' + ty + ')'; }); legend.append('rect') @@ -243,7 +261,7 @@ angular.module('BlocksApp').controller('StatsController', function($stateParams, //console.log(window.screen.availWidth); var width1 = parseInt(d3.select(chartid).style("width")); - var margin = {top: 0, right: 50, bottom: 50, left: 100}, + var margin = {top: 0, right: 10, bottom: 50, left: 65}, //var margin = {top: 30, right: 0, bottom: 0, left: 0}, // For Responsive web design, get window.innerWidth //width = window.innerWidth - margin.left - margin.right, @@ -260,15 +278,14 @@ angular.module('BlocksApp').controller('StatsController', function($stateParams, var y = d3.scale.linear().range([height, 0]); // For Responsive web design - //When window.innerWidth < 800 , Reduce the ticks to 2 - + var tick = window.innerWidth < 800 ? 2:5; var xAxis = d3.svg.axis() .scale(x) .orient("bottom") //.tickFormat(d3.time.format("%x %H:%M")) .tickFormat(d3.time.format("%x")) - .ticks(5); + .ticks(tick); @@ -300,16 +317,15 @@ angular.module('BlocksApp').controller('StatsController', function($stateParams, .attr("transform", "translate(" + margin.left + "," + margin.top + ")"); - - - + // fix for mobile layout + var tick = window.innerWidth < 800 ? 15:30; // function for the x grid lines function make_x_axis() { return d3.svg.axis() .scale(x) .orient("bottom") - .ticks(30) + .ticks(tick) } // function for the y grid lines From 8cd9126277324ad4f1af870857c964d133647cf3 Mon Sep 17 00:00:00 2001 From: hackyminer Date: Fri, 11 May 2018 10:50:20 +0900 Subject: [PATCH 10/10] fixed pie chart to show high rank miners first * hide low rank miners * adjust height for mobile --- public/js/controllers/StatsController.js | 18 +++++++++++++++--- 1 file changed, 15 insertions(+), 3 deletions(-) diff --git a/public/js/controllers/StatsController.js b/public/js/controllers/StatsController.js index 2d8a83ae0..1dbc16c75 100755 --- a/public/js/controllers/StatsController.js +++ b/public/js/controllers/StatsController.js @@ -72,7 +72,6 @@ angular.module('BlocksApp').controller('StatsController', function($stateParams, var radius; if (window.innerWidth < 800) { radius = Math.min(width, 450) * 0.6; - d3.select(chartid).attr("height", '700px'); } else { radius = 450 * 0.5; } @@ -96,6 +95,14 @@ angular.module('BlocksApp').controller('StatsController', function($stateParams, var legendRectSize = (radius * 0.05); var legendSpacing = radius * 0.02; + var maxMiners = 23; + if (window.innerWidth < 800) { + var legendHeight = legendRectSize + legendSpacing; + var fixHeight = Math.min(maxMiners, dataset.length) * legendHeight; + fixHeight = height + parseInt(fixHeight) + 50; + d3.select(chartid).attr("height", fixHeight + 'px'); + } + var div = d3.select("body").append("div").attr("class", "toolTip"); // fix for mobile layout @@ -167,6 +174,7 @@ angular.module('BlocksApp').controller('StatsController', function($stateParams, //console.log(data.length); + var legendHeight = Math.min(maxMiners, color.domain().length); var legend = svg.selectAll('.legend') //.data(color.domain()) .data(data) @@ -174,10 +182,14 @@ angular.module('BlocksApp').controller('StatsController', function($stateParams, .append('g') .attr('class', 'legend') .attr('transform', function (d, i) { + if (data.length - i >= maxMiners) { + // show maxMiners, hide remains + return 'translate(2000,0)'; + } var height = legendRectSize + legendSpacing; - var offset = height * color.domain().length / 2; + var offset = height * legendHeight / 2; var horz = -3 * legendRectSize; - var vert = i * height; + var vert = (data.length - i) * height; var tx, ty; if (window.innerWidth > 800) { tx = 250;