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SqlDataProvider.cs
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SqlDataProvider.cs
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//
// Copyright (c) .NET Foundation. All rights reserved.
// Licensed under the MIT License. See LICENSE file in the project root for full license information.
//
#region Usings
using System;
using System.Collections.Generic;
using System.Data;
using System.Data.SqlClient;
using System.Linq;
using System.Text.RegularExpressions;
using DotNetNuke.Common.Utilities;
using DotNetNuke.ComponentModel;
using DotNetNuke.Entities.Portals;
using DotNetNuke.Entities.Users;
using DotNetNuke.Instrumentation;
using DotNetNuke.Services.Log.EventLog;
#endregion
namespace DotNetNuke.Data
{
public sealed class SqlDataProvider : DataProvider
{
private static readonly ILog Logger = LoggerSource.Instance.GetLogger(typeof(SqlDataProvider));
private static DatabaseConnectionProvider _dbConnectionProvider = DatabaseConnectionProvider.Instance() ?? new SqlDatabaseConnectionProvider();
#region Private Members
private const string ScriptDelimiter = "(?<=(?:[^\\w]+|^))GO(?=(?: |\\t)*?(?:\\r?\\n|$))";
#endregion
#region Public Properties
public override bool IsConnectionValid
{
get
{
return CanConnect(ConnectionString, DatabaseOwner, ObjectQualifier);
}
}
public override Dictionary<string, string> Settings
{
get
{
return ComponentFactory.GetComponentSettings<SqlDataProvider>() as Dictionary<string, string>;
}
}
#endregion
#region Private Methods
private static bool CanConnect(string connectionString, string owner, string qualifier)
{
bool connectionValid = true;
try
{
_dbConnectionProvider.ExecuteReader(connectionString, CommandType.StoredProcedure, 0, owner + qualifier + "GetDatabaseVersion");
}
catch (SqlException ex)
{
if (ex.Errors.Cast<SqlError>().Any(c => !(c.Number == 2812 && c.Class == 16)))
{
connectionValid = false;
}
}
return connectionValid;
}
private string ExecuteScriptInternal(string connectionString, string script, int timeoutSec = 0)
{
string exceptions = "";
var sqlDelimiterRegex = RegexUtils.GetCachedRegex(ScriptDelimiter, RegexOptions.IgnoreCase | RegexOptions.Multiline);
string[] sqlStatements = sqlDelimiterRegex.Split(script);
foreach (string statement in sqlStatements)
{
var sql = statement.Trim();
if (!String.IsNullOrEmpty(sql))
{
// script dynamic substitution
sql = DataUtil.ReplaceTokens(sql);
try
{
Logger.Trace("Executing SQL Script " + sql);
_dbConnectionProvider.ExecuteNonQuery(connectionString, CommandType.Text, timeoutSec, sql);
}
catch (SqlException objException)
{
Logger.Error(objException);
exceptions += objException + Environment.NewLine + Environment.NewLine + sql + Environment.NewLine + Environment.NewLine;
}
}
}
return exceptions;
}
private IDataReader ExecuteSQLInternal(string connectionString, string sql, int timeoutSec = 0)
{
string errorMessage;
return ExecuteSQLInternal(connectionString, sql, timeoutSec, out errorMessage);
}
private IDataReader ExecuteSQLInternal(string connectionString, string sql, int timeoutSec, out string errorMessage)
{
try
{
sql = DataUtil.ReplaceTokens(sql);
errorMessage = "";
if (string.IsNullOrEmpty(connectionString))
throw new ArgumentNullException(nameof(connectionString));
return _dbConnectionProvider.ExecuteSql(connectionString, CommandType.Text, timeoutSec, sql);
}
catch (SqlException sqlException)
{
//error in SQL query
Logger.Error(sqlException);
errorMessage = sqlException.Message;
}
catch (Exception ex)
{
Logger.Error(ex);
errorMessage = ex.ToString();
}
errorMessage += Environment.NewLine + Environment.NewLine + sql + Environment.NewLine + Environment.NewLine;
return null;
}
private string GetConnectionStringUserID()
{
string DBUser = "public";
//If connection string does not use integrated security, then get user id.
//Normalize to uppercase before all of the comparisons
var connectionStringUppercase = ConnectionString.ToUpper();
if (connectionStringUppercase.Contains("USER ID") || connectionStringUppercase.Contains("UID") || connectionStringUppercase.Contains("USER"))
{
string[] ConnSettings = connectionStringUppercase.Split(';');
foreach (string s in ConnSettings)
{
if (s != string.Empty)
{
string[] ConnSetting = s.Split('=');
if ("USER ID|UID|USER".Contains(ConnSetting[0].Trim()))
{
DBUser = ConnSetting[1].Trim();
}
}
}
}
return DBUser;
}
private string GrantStoredProceduresPermission(string Permission, string LoginOrRole)
{
//grant rights to a login or role for all stored procedures
var sql = "if exists (select * from dbo.sysusers where name='" + LoginOrRole + "')"
+ " begin"
+ " declare @exec nvarchar(2000) "
+ " declare @name varchar(150) "
+ " declare sp_cursor cursor for select o.name as name "
+ " from dbo.sysobjects o "
+ " where ( OBJECTPROPERTY(o.id, N'IsProcedure') = 1 or OBJECTPROPERTY(o.id, N'IsExtendedProc') = 1 or OBJECTPROPERTY(o.id, N'IsReplProc') = 1 ) "
+ " and OBJECTPROPERTY(o.id, N'IsMSShipped') = 0 "
+ " and o.name not like N'#%%' "
+ " and (left(o.name,len('" + ObjectQualifier + "')) = '" + ObjectQualifier + "' or left(o.name,7) = 'aspnet_') "
+ " open sp_cursor "
+ " fetch sp_cursor into @name "
+ " while @@fetch_status >= 0 "
+ " begin"
+ " select @exec = 'grant " + Permission + " on [' + @name + '] to [" + LoginOrRole + "]'"
+ " execute (@exec)"
+ " fetch sp_cursor into @name "
+ " end "
+ " deallocate sp_cursor"
+ " end ";
return ExecuteUpgradedConnectionQuery(sql);
}
private string GrantUserDefinedFunctionsPermission(string ScalarPermission, string TablePermission, string LoginOrRole)
{
//grant EXECUTE rights to a login or role for all functions
var sql = "if exists (select * from dbo.sysusers where name='" + LoginOrRole + "')"
+ " begin"
+ " declare @exec nvarchar(2000) "
+ " declare @name varchar(150) "
+ " declare @isscalarfunction int "
+ " declare @istablefunction int "
+ " declare sp_cursor cursor for select o.name as name, OBJECTPROPERTY(o.id, N'IsScalarFunction') as IsScalarFunction "
+ " from dbo.sysobjects o "
+ " where ( OBJECTPROPERTY(o.id, N'IsScalarFunction') = 1 OR OBJECTPROPERTY(o.id, N'IsTableFunction') = 1 ) "
+ " and OBJECTPROPERTY(o.id, N'IsMSShipped') = 0 "
+ " and o.name not like N'#%%' "
+ " and (left(o.name,len('" + ObjectQualifier + "')) = '" + ObjectQualifier + "' or left(o.name,7) = 'aspnet_') "
+ " open sp_cursor "
+ " fetch sp_cursor into @name, @isscalarfunction "
+ " while @@fetch_status >= 0 "
+ " begin "
+ " if @IsScalarFunction = 1 "
+ " begin"
+ " select @exec = 'grant " + ScalarPermission + " on [' + @name + '] to [" + LoginOrRole + "]'"
+ " execute (@exec)"
+ " fetch sp_cursor into @name, @isscalarfunction "
+ " end "
+ " else "
+ " begin"
+ " select @exec = 'grant " + TablePermission + " on [' + @name + '] to [" + LoginOrRole + "]'"
+ " execute (@exec)"
+ " fetch sp_cursor into @name, @isscalarfunction "
+ " end "
+ " end "
+ " deallocate sp_cursor"
+ " end ";
return ExecuteUpgradedConnectionQuery(sql);
}
private string ExecuteUpgradedConnectionQuery(string sql)
{
var exceptions = string.Empty;
try
{
_dbConnectionProvider.ExecuteNonQuery(UpgradeConnectionString, CommandType.Text, 0, sql);
}
catch (SqlException objException)
{
Logger.Error(objException);
exceptions += objException + Environment.NewLine + Environment.NewLine + sql + Environment.NewLine + Environment.NewLine;
}
return exceptions;
}
#endregion
#region Abstract Methods
public override void ExecuteNonQuery(string procedureName, params object[] commandParameters)
{
_dbConnectionProvider.ExecuteNonQuery(ConnectionString, CommandType.StoredProcedure, 0, DatabaseOwner + ObjectQualifier + procedureName, commandParameters);
}
public override void ExecuteNonQuery(int timeoutSec, string procedureName, params object[] commandParameters)
{
_dbConnectionProvider.ExecuteNonQuery(ConnectionString, CommandType.StoredProcedure, timeoutSec, DatabaseOwner + ObjectQualifier + procedureName, commandParameters);
}
public override void BulkInsert(string procedureName, string tableParameterName, DataTable dataTable)
{
_dbConnectionProvider.BulkInsert(ConnectionString, 0, DatabaseOwner + ObjectQualifier + procedureName, tableParameterName, dataTable);
}
public override void BulkInsert(string procedureName, string tableParameterName, DataTable dataTable, int timeoutSec)
{
_dbConnectionProvider.BulkInsert(ConnectionString, timeoutSec, DatabaseOwner + ObjectQualifier + procedureName, tableParameterName, dataTable);
}
public override void BulkInsert(string procedureName, string tableParameterName, DataTable dataTable, Dictionary<string, object> commandParameters)
{
_dbConnectionProvider.BulkInsert(ConnectionString, 0, DatabaseOwner + ObjectQualifier + procedureName, tableParameterName, dataTable, commandParameters);
}
public override void BulkInsert(string procedureName, string tableParameterName, DataTable dataTable, int timeoutSec, Dictionary<string, object> commandParameters)
{
_dbConnectionProvider.BulkInsert(ConnectionString, 0, DatabaseOwner + ObjectQualifier + procedureName, tableParameterName, dataTable, commandParameters);
}
public override IDataReader ExecuteReader(string procedureName, params object[] commandParameters)
{
return _dbConnectionProvider.ExecuteReader(ConnectionString, CommandType.StoredProcedure, 0, DatabaseOwner + ObjectQualifier + procedureName, commandParameters);
}
public override IDataReader ExecuteReader(int timeoutSec, string procedureName, params object[] commandParameters)
{
return _dbConnectionProvider.ExecuteReader(ConnectionString, CommandType.StoredProcedure, timeoutSec, DatabaseOwner + ObjectQualifier + procedureName, commandParameters);
}
public override T ExecuteScalar<T>(string procedureName, params object[] commandParameters)
{
return _dbConnectionProvider.ExecuteScalar<T>(ConnectionString, CommandType.StoredProcedure, 0, DatabaseOwner + ObjectQualifier + procedureName, commandParameters);
}
public override T ExecuteScalar<T>(int timeoutSec, string procedureName, params object[] commandParameters)
{
return _dbConnectionProvider.ExecuteScalar<T>(ConnectionString, CommandType.StoredProcedure, timeoutSec, DatabaseOwner + ObjectQualifier + procedureName, commandParameters);
}
public override string ExecuteScript(string script)
{
return ExecuteScript(script, 0);
}
public override string ExecuteScript(string script, int timeoutSec)
{
string exceptions = ExecuteScriptInternal(UpgradeConnectionString, script, timeoutSec);
//if the upgrade connection string is specified or or db_owner setting is not set to dbo
if (UpgradeConnectionString != ConnectionString || !DatabaseOwner.Trim().Equals("dbo.", StringComparison.InvariantCultureIgnoreCase))
{
try
{
//grant execute rights to the public role or userid for all stored procedures. This is
//necesary because the UpgradeConnectionString will create stored procedures
//which restrict execute permissions for the ConnectionString user account. This is also
//necessary when db_owner is not set to "dbo"
exceptions += GrantStoredProceduresPermission("EXECUTE", GetConnectionStringUserID());
}
catch (SqlException objException)
{
Logger.Error(objException);
exceptions += objException + Environment.NewLine + Environment.NewLine + script + Environment.NewLine + Environment.NewLine;
}
try
{
//grant execute or select rights to the public role or userid for all user defined functions based
//on what type of function it is (scalar function or table function). This is
//necesary because the UpgradeConnectionString will create user defined functions
//which restrict execute permissions for the ConnectionString user account. This is also
//necessary when db_owner is not set to "dbo"
exceptions += GrantUserDefinedFunctionsPermission("EXECUTE", "SELECT", GetConnectionStringUserID());
}
catch (SqlException objException)
{
Logger.Error(objException);
exceptions += objException + Environment.NewLine + Environment.NewLine + script + Environment.NewLine + Environment.NewLine;
}
}
return exceptions;
}
public override string ExecuteScript(string connectionString, string script)
{
return ExecuteScriptInternal(connectionString, script);
}
public override string ExecuteScript(string connectionString, string script, int timeoutSec)
{
return ExecuteScriptInternal(connectionString, script, timeoutSec);
}
public override IDataReader ExecuteSQL(string sql)
{
return ExecuteSQLInternal(ConnectionString, sql);
}
public override IDataReader ExecuteSQL(string sql, int timeoutSec)
{
return ExecuteSQLInternal(ConnectionString, sql, timeoutSec);
}
public override IDataReader ExecuteSQLTemp(string connectionString, string sql)
{
string errorMessage;
return ExecuteSQLTemp(connectionString, sql, out errorMessage);
}
public override IDataReader ExecuteSQLTemp(string connectionString, string sql, int timeoutSec)
{
string errorMessage;
return ExecuteSQLTemp(connectionString, sql, timeoutSec, out errorMessage);
}
public override IDataReader ExecuteSQLTemp(string connectionString, string sql, out string errorMessage)
{
return ExecuteSQLInternal(connectionString, sql, 0, out errorMessage);
}
public override IDataReader ExecuteSQLTemp(string connectionString, string sql, int timeoutSec, out string errorMessage)
{
return ExecuteSQLInternal(connectionString, sql, timeoutSec, out errorMessage);
}
#endregion
}
}