old_contents: ###############################################################################
  ##
  ##  Copyright 2011 Tavendo GmbH
  ##
  ##  Licensed under the Apache License, Version 2.0 (the "License");
  ##  you may not use this file except in compliance with the License.
  ##  You may obtain a copy of the License at
  ##
  ##      http://www.apache.org/licenses/LICENSE-2.0
  ##
  ##  Unless required by applicable law or agreed to in writing, software
  ##  distributed under the License is distributed on an "AS IS" BASIS,
  ##  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  ##  See the License for the specific language governing permissions and
  ##  limitations under the License.
  ##
  ###############################################################################
  
  from ranstring import randomByteString
  from zope.interface import implements
  from twisted.internet import reactor, interfaces
  from autobahn.websocket import WebSocketProtocol, \
                                 WebSocketClientFactory, \
                                 WebSocketClientProtocol, \
                                 connectWS
  
  BATCH_SIZE = 1 * 2**20
  
  
  class StreamingHashClientProtocol(WebSocketClientProtocol):
     """
     Streaming WebSockets client that generates stream of random octets
     sent to WebSockets server as a sequence of batches in one frame, in
     one message. The server computes a running SHA-256, which it will send
     every BATCH_SIZE octets back to us. When we receive a response, we
     repeat by sending another batch of data.
     """
  
     def sendOneBatch(self):
        data = randomByteString(BATCH_SIZE)
  
        # Note, that this could complete the frame, when the frame length is
        # reached. Since the frame length here is 2^63, we don't bother, since
        # it'll take _very_ long to reach that.
        self.sendMessageFrameData(data)
  
     def onOpen(self):
        self.count = 0
        self.beginMessage(opcode = WebSocketProtocol.MESSAGE_TYPE_BINARY)
        # 2^63 - This is the maximum imposed by the WS protocol
        self.beginMessageFrame(0x7FFFFFFFFFFFFFFF)
        self.sendOneBatch()
  
     def onMessage(self, message, binary):
        print "Digest for batch %d computed by server: %s" \
              % (self.count, message)
        self.count += 1
        self.sendOneBatch()
  
  
  if __name__ == '__main__':
  
     factory = WebSocketClientFactory("ws://localhost:9000")
     factory.protocol = StreamingHashClientProtocol
     connectWS(factory)
     reactor.run()
  
new_contents: ###############################################################################
  ##
  ##  Copyright 2011 Tavendo GmbH
  ##
  ##  Licensed under the Apache License, Version 2.0 (the "License");
  ##  you may not use this file except in compliance with the License.
  ##  You may obtain a copy of the License at
  ##
  ##      http://www.apache.org/licenses/LICENSE-2.0
  ##
  ##  Unless required by applicable law or agreed to in writing, software
  ##  distributed under the License is distributed on an "AS IS" BASIS,
  ##  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  ##  See the License for the specific language governing permissions and
  ##  limitations under the License.
  ##
  ###############################################################################
  
  from ranstring import randomByteString
  from zope.interface import implements
  from twisted.internet import reactor, interfaces
  from autobahn.websocket import WebSocketProtocol, \
                                 WebSocketClientFactory, \
                                 WebSocketClientProtocol, \
                                 connectWS
  
  BATCH_SIZE = 1 * 2**20
  
  
  class StreamingHashClientProtocol(WebSocketClientProtocol):
     """
     Streaming WebSockets client that generates stream of random octets
     sent to WebSockets server as a sequence of batches in one frame, in
     one message. The server computes a running SHA-256, which it will send
     every BATCH_SIZE octets back to us. When we receive a response, we
     repeat by sending another batch of data.
     """
  
     def sendOneBatch(self):
        data = randomByteString(BATCH_SIZE)
  
        # Note, that this could complete the frame, when the frame length is
        # reached. Since the frame length here is 2^63, we don't bother, since
        # it'll take _very_ long to reach that.
        self.sendMessageFrameData(data)
  
     def onOpen(self):
        self.count = 0
        self.beginMessage(binary = True)
        # 2^63 - This is the maximum imposed by the WS protocol
        self.beginMessageFrame(0x7FFFFFFFFFFFFFFF)
        self.sendOneBatch()
  
     def onMessage(self, message, binary):
        print "Digest for batch %d computed by server: %s" \
              % (self.count, message)
        self.count += 1
        self.sendOneBatch()
  
  
  if __name__ == '__main__':
  
     factory = WebSocketClientFactory("ws://localhost:9000")
     factory.protocol = StreamingHashClientProtocol
     connectWS(factory)
     reactor.run()
  
subject: fix client