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   源码介绍

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用Python编写的简单Websocket服务器，特点：RFC 6455（所有最新浏览器），开箱即用的TLS / SSL，通过Autobahns Websocket Testsuite，支持Python 2和3。

'''
The MIT License (MIT)
Copyright (c) 2013 Dave P.
'''

import signal
import sys
import ssl
from SimpleWebSocketServer import WebSocket, SimpleWebSocketServer, SimpleSSLWebSocketServer
from optparse import OptionParser

class SimpleEcho(WebSocket):

   def handleMessage(self):
      self.sendMessage(self.data)

   def handleConnected(self):
      pass

   def handleClose(self):
      pass

clients = []
class SimpleChat(WebSocket):

   def handleMessage(self):
      for client in clients:
         if client != self:
            client.sendMessage(self.address[0]   u' - '   self.data)

   def handleConnected(self):
      print (self.address, 'connected')
      for client in clients:
         client.sendMessage(self.address[0]   u' - connected')
      clients.append(self)

   def handleClose(self):
      clients.remove(self)
      print (self.address, 'closed')
      for client in clients:
         client.sendMessage(self.address[0]   u' - disconnected')


if __name__ == "__main__":

   parser = OptionParser(usage="usage: %prog [options]", version="%prog 1.0")
   parser.add_option("--host", default='', type='string', action="store", dest="host", help="hostname (localhost)")
   parser.add_option("--port", default=8000, type='int', action="store", dest="port", help="port (8000)")
   parser.add_option("--example", default='echo', type='string', action="store", dest="example", help="echo, chat")
   parser.add_option("--ssl", default=0, type='int', action="store", dest="ssl", help="ssl (1: on, 0: off (default))")
   parser.add_option("--cert", default='./cert.pem', type='string', action="store", dest="cert", help="cert (./cert.pem)")
   parser.add_option("--key", default='./key.pem', type='string', action="store", dest="key", help="key (./key.pem)")
   parser.add_option("--ver", default=ssl.PROTOCOL_TLSv1, type=int, action="store", dest="ver", help="ssl version")

   (options, args) = parser.parse_args()

   cls = SimpleEcho
   if options.example == 'chat':
      cls = SimpleChat

   if options.ssl == 1:
      server = SimpleSSLWebSocketServer(options.host, options.port, cls, options.cert, options.key, version=options.ver)
   else:
      server = SimpleWebSocketServer(options.host, options.port, cls)

   def close_sig_handler(signal, frame):
      server.close()
      sys.exit()

   signal.signal(signal.SIGINT, close_sig_handler)

   server.serveforever()