Fix realtime on finishConnection might not clear and connect next socket in queue and should use shift instead of pop on remove invalid socket in queue

Author: jackycute

lib/realtime.js

@@ -323,17 +323,27 @@ function clearSocketQueue(queue, socket) {
     }
 }
 
+function connectNextSocket() {
+    isConnectionBusy = false;
+    if (connectionSocketQueue.length > 0)
+        startConnection(connectionSocketQueue[0]);
+}
+
 var isConnectionBusy = false;
 var connectionSocketQueue = [];
 var isDisconnectBusy = false;
 var disconnectSocketQueue = [];
 
 function finishConnection(socket, note, user) {
+    // if no valid info provided will drop the client
     if (!socket || !note || !user) {
         if (note) delete note;
         if (user) delete user;
-        connectionSocketQueue.pop();
-        isConnectionBusy = false;
+        if (socket)
+            clearSocketQueue(connectionSocketQueue, socket);
+        else
+            connectionSocketQueue.shift();
+        connectNextSocket();
         return;
     }
     //check view permission
@@ -356,9 +366,7 @@ function finishConnection(socket, note, user) {
     //clear finished socket in queue
 	clearSocketQueue(connectionSocketQueue, socket);
     //seek for next socket
-    isConnectionBusy = false;
-    if (connectionSocketQueue.length > 0)
-        startConnection(connectionSocketQueue[0]);
+    connectNextSocket();
 
     if (config.debug) {
         var noteId = socket.noteId;
@@ -436,7 +444,7 @@ function failConnection(code, err, socket) {
     logger.error(err);
     // clear error socket in queue
     clearSocketQueue(connectionSocketQueue, socket);
-    isConnectionBusy = false;
+    connectNextSocket();
     // emit error info
     socket.emit('info', {
         code: code