Make sure clients are authenticated before sending messages.

As the system is asynchronous some messages could (?) slip through before the socket is closed when auth fails.

app/classes/web/websocket_helper.py

@@ -12,6 +12,7 @@ class WebSocketHelper:
         self.clients.add(client)
     
     def send_message(self, client, event_type, data):
+        if client.check_auth():
             message = str(json.dumps({'event': event_type, 'data': data}))
             client.write_message(message)