Add user id to analytics if provided in jwt

react/features/analytics/functions.js

         return;
     }
 
-    const config = getState()['features/base/config'];
+    const state = getState();
+    const config = state['features/base/config'];
     const { analyticsScriptUrls } = config;
     const machineId = JitsiMeetJS.getMachineId();
+    const { user } = state['features/base/jwt'];
     const handlerConstructorOptions = {
         product: 'lib-jitsi-meet',
         version: JitsiMeetJS.version,
         session: machineId,
-        user: `uid-${machineId}`,
-        server: getState()['features/base/connection'].locationURL.host
+        user: user ? user.id : `uid-${machineId}`,
+        server: state['features/base/connection'].locationURL.host
     };
 
     _loadHandlers(analyticsScriptUrls, handlerConstructorOptions)
         .then(handlers => {
-            const state = getState();
             const permanentProperties: Object = {
                 roomName: state['features/base/conference'].room,
                 userAgent: navigator.userAgent

react/features/base/jwt/middleware.js

  * @returns {{
  *     avatarURL: ?string,
  *     email: ?string,
+ *     id: ?string,
  *     name: ?string
  * }}
  */
-function _user2participant({ avatar, avatarUrl, email, name }) {
+function _user2participant({ avatar, avatarUrl, email, id, name }) {
     const participant = {};
 
     if (typeof avatarUrl === 'string') {
     if (typeof email === 'string') {
         participant.email = email.trim();
     }
+    if (typeof id === 'string') {
+        participant.id = id.trim();
+    }
     if (typeof name === 'string') {
         participant.name = name.trim();
     }