55 lines
1.9 KiB
Python
55 lines
1.9 KiB
Python
###############################################################################
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##
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## Copyright 2011 Tavendo GmbH
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##
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## Licensed under the Apache License, Version 2.0 (the "License");
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## you may not use this file except in compliance with the License.
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## You may obtain a copy of the License at
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##
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## http://www.apache.org/licenses/LICENSE-2.0
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##
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## Unless required by applicable law or agreed to in writing, software
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## distributed under the License is distributed on an "AS IS" BASIS,
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## WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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## See the License for the specific language governing permissions and
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## limitations under the License.
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##
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###############################################################################
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from ranstring import randomByteString
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from twisted.internet import reactor
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from autobahn.websocket import WebSocketProtocol, WebSocketClientFactory, WebSocketClientProtocol, connectWS
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FRAME_SIZE = 1 * 2**20
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class FrameBasedHashClientProtocol(WebSocketClientProtocol):
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"""
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Message-based WebSockets client that generates stream of random octets
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sent to WebSockets server as a sequence of frames all in one message.
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The server will respond to us with the SHA-256 computed over frames.
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When we receive response, we repeat by sending a new frame.
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"""
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def sendOneFrame(self):
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data = randomByteString(FRAME_SIZE)
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self.sendMessageFrame(data)
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def onOpen(self):
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self.count = 0
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self.beginMessage(opcode = WebSocketProtocol.MESSAGE_TYPE_BINARY)
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self.sendOneFrame()
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def onMessage(self, message, binary):
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print "Digest for frame %d computed by server: %s" % (self.count, message)
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self.count += 1
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self.sendOneFrame()
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if __name__ == '__main__':
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factory = WebSocketClientFactory("ws://localhost:9000")
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factory.protocol = FrameBasedHashClientProtocol
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connectWS(factory)
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reactor.run()
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