Displays error dialog when BOSH connection fails.

index.html

     <script src="libs/popover.js?v=1"></script><!-- bootstrap tooltip lib -->
     <script src="libs/toastr.js?v=1"></script><!-- notifications lib -->
     <script src="interface_config.js?v=5"></script>
-    <script src="libs/app.bundle.js?v=61"></script>
+    <script src="libs/app.bundle.js?v=62"></script>
     <script src="analytics.js?v=1"></script><!-- google analytics plugin -->
     <link rel="stylesheet" href="css/font.css?v=7"/>
     <link rel="stylesheet" href="css/toastr.css?v=1">

lang/main.json

         "passwordError2": "This conversation isn't currently protected by a password. Only the owner of the conference could set a password.",
         "joinError": "Oops! We couldn't join the conference. There might be some problem with security configuration. Please contact service administrator.",
         "connectError": "Oops! Something went wrong and we couldn't connect to the conference.",
+        "connectErrorWithMsg": "Oops! Something went wrong and we couldn't connect to the conference: __msg__",
         "connecting": "Connecting",
         "error": "Error",
         "detectext": "Error when trying to detect desktopsharing extension.",

modules/UI/UI.js

     }
 }
 
+function onXmppConnectionFailed(stropheErrorMsg) {
+
+    var title = APP.translation.generateTranslatonHTML(
+        "dialog.error");
+
+    var message;
+    if (stropheErrorMsg) {
+        message = APP.translation.generateTranslatonHTML(
+            "dialog.connectErrorWithMsg", {msg: stropheErrorMsg});
+    } else {
+        message = APP.translation.generateTranslatonHTML(
+            "dialog.connectError");
+    }
+
+    messageHandler.openDialog(
+        title, message, true, {}, function (e, v, m, f) { return false; });
+}
+
 function onDisposeConference(unload) {
     Toolbar.showAuthenticateButton(false);
-};
+}
 
 function onDisplayNameChanged(jid, displayName) {
     ContactList.onDisplayNameChange(jid, displayName);
         VideoLayout.updateConnectionStats);
     APP.connectionquality.addListener(CQEvents.STOP,
         VideoLayout.onStatsStop);
+    APP.xmpp.addListener(XMPPEvents.CONNECTION_FAILED, onXmppConnectionFailed);
     APP.xmpp.addListener(XMPPEvents.DISPOSE_CONFERENCE, onDisposeConference);
     APP.xmpp.addListener(XMPPEvents.GRACEFUL_SHUTDOWN, function () {
         messageHandler.openMessageDialog(

modules/xmpp/xmpp.js

     }
 
     var anonymousConnectionFailed = false;
+    var wasConnected = false;
+    var lastErrorMsg;
     connection.connect(jid, password, function (status, msg) {
         console.log('Strophe status changed to',
-            Strophe.getStatusString(status));
+            Strophe.getStatusString(status), msg);
         if (status === Strophe.Status.CONNECTED) {
+
+            wasConnected = true;
+
             if (config.useStunTurn) {
                 connection.jingle.getStunAndTurnCredentials();
             }
 
             console.info("My Jabber ID: " + connection.jid);
 
-            if(password)
+            if (password)
                 authenticatedUser = true;
             maybeDoJoin();
         } else if (status === Strophe.Status.CONNFAIL) {
-            if(msg === 'x-strophe-bad-non-anon-jid') {
+            if (msg === 'x-strophe-bad-non-anon-jid') {
                 anonymousConnectionFailed = true;
             }
+            lastErrorMsg = msg;
         } else if (status === Strophe.Status.DISCONNECTED) {
-            if(anonymousConnectionFailed) {
+            if (anonymousConnectionFailed) {
                 // prompt user for username and password
                 XMPP.promptLogin();
+            } else if (!wasConnected) {
+                eventEmitter.emit(
+                    XMPPEvents.CONNECTION_FAILED,
+                    msg ? msg : lastErrorMsg);
             }
         } else if (status === Strophe.Status.AUTHFAIL) {
             // wrong password or username, prompt user

service/xmpp/XMPPEvents.js

 var XMPPEvents = {
+    CONNECTION_FAILED: "xmpp.connection.failed",
     CONFERENCE_CREATED: "xmpp.conferenceCreated.jingle",
     CALL_TERMINATED: "xmpp.callterminated.jingle",
     CALL_INCOMING: "xmpp.callincoming.jingle",