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| 1 # Copyright 2009, Google Inc. | |
| 2 # All rights reserved. | |
| 3 # | |
| 4 # Redistribution and use in source and binary forms, with or without | |
| 5 # modification, are permitted provided that the following conditions are | |
| 6 # met: | |
| 7 # | |
| 8 # * Redistributions of source code must retain the above copyright | |
| 9 # notice, this list of conditions and the following disclaimer. | |
| 10 # * Redistributions in binary form must reproduce the above | |
| 11 # copyright notice, this list of conditions and the following disclaimer | |
| 12 # in the documentation and/or other materials provided with the | |
| 13 # distribution. | |
| 14 # * Neither the name of Google Inc. nor the names of its | |
| 15 # contributors may be used to endorse or promote products derived from | |
| 16 # this software without specific prior written permission. | |
| 17 # | |
| 18 # THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS | |
| 19 # "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT | |
| 20 # LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR | |
| 21 # A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT | |
| 22 # OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, | |
| 23 # SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT | |
| 24 # LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, | |
| 25 # DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY | |
| 26 # THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT | |
| 27 # (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE | |
| 28 # OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. | |
| 29 | |
| 30 import json | |
| 31 from mod_pywebsocket import msgutil | |
| 32 | |
| 33 | |
| 34 # we don't use set() here, because python on mac tiger doesn't support it. | |
| 35 connections = {} | |
| 36 | |
| 37 | |
| 38 def web_socket_do_extra_handshake(request): | |
| 39 pass # Always accept. | |
| 40 | |
| 41 | |
| 42 def web_socket_transfer_data(request): | |
| 43 global connections | |
| 44 connections[request] = True | |
| 45 message = None | |
| 46 dataToBroadcast = {} | |
| 47 try: | |
| 48 message = msgutil.receive_message(request) | |
| 49 # notify to client that message is received by server. | |
| 50 msgutil.send_message(request, message) | |
| 51 msgutil.receive_message(request) # wait, and exception by close. | |
| 52 dataToBroadcast["message"] = message | |
| 53 dataToBroadcast["closeCode"] = str(request.ws_close_code) | |
| 54 finally: | |
| 55 # request is closed. notify this dataToBroadcast to other WebSockets. | |
| 56 del connections[request] | |
| 57 for ws in connections.keys(): | |
| 58 msgutil.send_message(ws, json.dumps(dataToBroadcast)) | |
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