fix(openid-connect): use_jwks breaking authentication header

apisix/plugins/openid-connect.lua

@@ -481,7 +481,7 @@ function _M.rewrite(plugin_conf, ctx)
 
     local response, err, session, _
 
-    if conf.bearer_only or conf.introspection_endpoint or conf.public_key then
+    if conf.bearer_only or conf.introspection_endpoint or conf.public_key or conf.use_jwks then
         -- An introspection endpoint or a public key has been configured. Try to
         -- validate the access token from the request, if it is present in a
         -- request header. Otherwise, return a nil response. See below for

t/plugin/openid-connect.t

@@ -1425,3 +1425,107 @@ passed
 --- response_body
 true
 --- error_code: 302
+
+
+
+=== TEST 38: Update plugin config to use_jwk and bear_only false
+--- config
+    location /t {
+        content_by_lua_block {
+            local t = require("lib.test_admin").test
+            local code, body = t('/apisix/admin/routes/1',
+                 ngx.HTTP_PUT,
+                 [[{
+                        "plugins": {
+                            "openid-connect": {
+                                "client_id": "course_management",
+                                "client_secret": "d1ec69e9-55d2-4109-a3ea-befa071579d5",
+                                "discovery": "http://127.0.0.1:8080/realms/University/.well-known/openid-configuration",
+                                "redirect_uri": "http://localhost:3000",
+                                "ssl_verify": false,
+                                "timeout": 10,
+                                "bearer_only": false,
+                                "use_jwks": true,
+                                "realm": "University",
+                                "introspection_endpoint_auth_method": "client_secret_post",
+                                "introspection_endpoint": "http://127.0.0.1:8080/realms/University/protocol/openid-connect/token/introspect"
+                            }
+                        },
+                        "upstream": {
+                            "nodes": {
+                                "127.0.0.1:1980": 1
+                            },
+                            "type": "roundrobin"
+                        },
+                        "uri": "/hello"
+                }]]
+                )
+
+            if code >= 300 then
+                ngx.status = code
+            end
+            ngx.say(body)
+        }
+    }
+--- response_body
+passed
+
+
+
+=== TEST 39: Test that jwt with bearer_only false still allows a valid Authorization header
+--- config
+    location /t {
+        content_by_lua_block {
+            -- Obtain valid access token from Keycloak using known username and password.
+            local json_decode = require("toolkit.json").decode
+            local http = require "resty.http"
+            local httpc = http.new()
+            local uri = "http://127.0.0.1:8080/realms/University/protocol/openid-connect/token"
+            local res, err = httpc:request_uri(uri, {
+                    method = "POST",
+                    body = "grant_type=password&client_id=course_management&client_secret=d1ec69e9-55d2-4109-a3ea-befa071579d5&username=teacher@gmail.com&password=123456",
+                    headers = {
+                        ["Content-Type"] = "application/x-www-form-urlencoded"
+                    }
+                })
+
+            -- Check response from keycloak and fail quickly if there's no response.
+            if not res then
+                ngx.say(err)
+                return
+            end
+
+            -- Check if response code was ok.
+            if res.status == 200 then
+                -- Get access token from JSON response body.
+                local body = json_decode(res.body)
+                local accessToken = body["access_token"]
+
+                -- Access route using access token. Should work.
+                uri = "http://127.0.0.1:" .. ngx.var.server_port .. "/hello"
+                local res, err = httpc:request_uri(uri, {
+                    method = "GET",
+                    headers = {
+                        ["Authorization"] = "Bearer " .. body["access_token"]
+                    }
+                 })
+
+                if res.status == 200 then
+                    -- Route accessed successfully.
+                    ngx.say(true)
+                else
+                    -- Couldn't access route.
+                    ngx.say(false)
+                end
+            else
+                -- Response from Keycloak not ok.
+                ngx.say(false)
+            end
+        }
+    }
+--- response_body
+true
+--- grep_error_log eval
+qr/token validate successfully by \w+/
+--- grep_error_log_out
+token validate successfully by jwks