124 lines
4.6 KiB
Python
124 lines
4.6 KiB
Python
###############################################################################
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#
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# The MIT License (MIT)
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#
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# Copyright (c) Tavendo GmbH
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#
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# Permission is hereby granted, free of charge, to any person obtaining a copy
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# of this software and associated documentation files (the "Software"), to deal
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# in the Software without restriction, including without limitation the rights
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# to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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# copies of the Software, and to permit persons to whom the Software is
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# furnished to do so, subject to the following conditions:
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#
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# The above copyright notice and this permission notice shall be included in
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# all copies or substantial portions of the Software.
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#
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# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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# AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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# OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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# THE SOFTWARE.
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#
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###############################################################################
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import sys
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from twisted.internet import reactor
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from twisted.python import log
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from autobahn.twisted.websocket import WebSocketClientFactory, \
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WebSocketClientProtocol, \
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connectWS
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from autobahn.websocket.compress import *
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class EchoClientProtocol(WebSocketClientProtocol):
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def onConnect(self, response):
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print "WebSocket extensions in use: %s" % response.extensions
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def sendHello(self):
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self.sendMessage("Hello, world!" * 100)
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def onOpen(self):
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self.sendHello()
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def onMessage(self, payload, isBinary):
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if not isBinary:
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print("Text message received: {}".format(payload.decode('utf8')))
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reactor.callLater(1, self.sendHello)
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if __name__ == '__main__':
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if len(sys.argv) < 2:
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print "Need the WebSocket server address, i.e. ws://127.0.0.1:9000"
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sys.exit(1)
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log.startLogging(sys.stdout)
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factory = WebSocketClientFactory(sys.argv[1])
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factory.protocol = EchoClientProtocol
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# Advanced usage: specify exact list of offers ("PMCE") we announce to server.
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#
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# Examples:
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#
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# this is just what the default constructor for PerMessageDeflateOffer
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# creates anyway
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offers1 = [PerMessageDeflateOffer(acceptNoContextTakeover=True,
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acceptMaxWindowBits=True,
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requestNoContextTakeover=False,
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requestMaxWindowBits=0)]
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# request the server to use a sliding window of 2^8 bytes
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offers2 = [PerMessageDeflateOffer(True, True, False, 8)]
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# request the server to use a sliding window of 2^8 bytes, but let the
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# server fall back to "standard" if server does not support the setting
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offers3 = [PerMessageDeflateOffer(True, True, False, 8),
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PerMessageDeflateOffer(True, True, False, 0)]
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# request "no context takeover", accept the same, but deny setting
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# a sliding window. no fallback!
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offers4 = [PerMessageDeflateOffer(True, False, True, 0)]
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# offer "permessage-snappy", "permessage-bzip2" and "permessage-deflate"
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# note that the first 2 are currently not even in an RFC draft
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#
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offers5 = []
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if 'permessage-snappy' in PERMESSAGE_COMPRESSION_EXTENSION:
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# this require snappy to be installed
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offers5.append(PerMessageSnappyOffer())
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offers5.append(PerMessageBzip2Offer(True, 1))
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offers5.append(PerMessageDeflateOffer(True, True, False, 12))
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# factory.setProtocolOptions(perMessageCompressionOffers = offers1)
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# factory.setProtocolOptions(perMessageCompressionOffers = offers2)
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# factory.setProtocolOptions(perMessageCompressionOffers = offers3)
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# factory.setProtocolOptions(perMessageCompressionOffers = offers4)
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factory.setProtocolOptions(perMessageCompressionOffers=offers5)
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# factory.setProtocolOptions(autoFragmentSize = 4)
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def accept(response):
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if isinstance(response, PerMessageDeflateResponse):
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return PerMessageDeflateResponseAccept(response)
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elif isinstance(response, PerMessageBzip2Response):
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return PerMessageBzip2ResponseAccept(response)
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elif isinstance(response, PerMessageSnappyResponse):
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return PerMessageSnappyResponseAccept(response)
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factory.setProtocolOptions(perMessageCompressionAccept=accept)
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connectWS(factory)
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reactor.run()
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