fix unhandled exceptions

proxy.py

@@ -65,7 +65,8 @@ class VNCWebSocketHandler(Protocol):
             port = value['port']
             host = value['host']
         except:
-            pass
+            transport.loseConnection()
+            return
         self.transport = transport
         self.srv_queue = defer.DeferredQueue()
         self.cli_queue = defer.DeferredQueue()
@@ -87,6 +88,7 @@ class VNCWebSocketHandler(Protocol):
         self.cli_queue.put(frame)
 
     def connectionLost(self, why):
+        if hasattr(self, 'cli_queue'):
             self.cli_queue.put(False)
         log.msg("HELO")
 

websockets.py

@@ -399,7 +399,6 @@ class WebSocketsProtocol(Protocol):
         Find frames in incoming data and pass them to the underlying protocol.
         """
         for opcode, data, fin in _parseFrames(self._buffer):
-            self._receiver.frameReceived(opcode, base64.b64decode(data), fin)
             if opcode == CONTROLS.CLOSE:
                 # The other side wants us to close.
                 code, reason = data
@@ -416,6 +415,7 @@ class WebSocketsProtocol(Protocol):
                 # 5.5.3 PONGs must contain the data that was sent with the
                 # provoking PING.
                 self.transport.write(_makeFrame(data, CONTROLS.PONG, True))
+            self._receiver.frameReceived(opcode, base64.b64decode(data), fin)
 
 
     def dataReceived(self, data):