Catch message type errors on connection parsing

src/Connection/Connection.py

@@ -157,11 +157,14 @@ class Connection(object):
                 self.unpacker.feed(buff)
                 buff = None
                 for message in self.unpacker:
+                    try:
                         self.incomplete_buff_recv = 0
                         if "stream_bytes" in message:
                             self.handleStream(message)
                         else:
                             self.handleMessage(message)
+                    except TypeError:
+                        raise Exception("Invalid message type: %s" % type(message))
 
                 message = None
         except Exception, err: