The Tor Browser / file revision

 from mod_pywebsocket import common

 from mod_pywebsocket import msgutil

 def web_socket_do_extra_handshake(request):

     pass # Always accept.

 def web_socket_transfer_data(request):

     expected_messages = ['Hello, world!', '', all_distinct_bytes()]

     for test_number, expected_message in enumerate(expected_messages):

         message = msgutil.receive_message(request)

         if type(message) == str and message == expected_message:

             msgutil.send_message(request, 'PASS: Message #%d.' % test_number)

         else:

             msgutil.send_message(request, 'FAIL: Message #%d: Received unexpected message: %r' % (test_number, message))

 def all_distinct_bytes():

     return ''.join([chr(i) for i in xrange(256)])