'Called to decode queries when no handler for that mode is found.
@raises ProtocolError: This implementation always raises
L{ProtocolError}.'

def defaultDecoder(self, message, server):

    mode = message.getArg(OPENID_NS, 'mode')
    fmt = 'Unrecognized    OpenID    mode    %r'
    raise ProtocolError(message, text=(fmt % (mode,)))
