| # Copyright 2013, Google Inc. All rights reserved. |
| # |
| # Redistribution and use in source and binary forms, with or without |
| # modification, are permitted provided that the following conditions are |
| # met: |
| # |
| # * Redistributions of source code must retain the above copyright |
| # notice, this list of conditions and the following disclaimer. |
| # * Redistributions in binary form must reproduce the above |
| # copyright notice, this list of conditions and the following disclaimer |
| # in the documentation and/or other materials provided with the |
| # distribution. |
| # * Neither the name of Google Inc. nor the names of its |
| # contributors may be used to endorse or promote products derived from |
| # this software without specific prior written permission. |
| # |
| # THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS |
| # "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT |
| # LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR |
| # A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT |
| # OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, |
| # SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT |
| # LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
| # DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
| # THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
| # (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE |
| # OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| |
| from six.moves.urllib import parse |
| from mod_pywebsocket import handshake |
| from mod_pywebsocket.handshake.hybi import compute_accept_from_unicode |
| |
| |
| def web_socket_do_extra_handshake(request): |
| resources = request.ws_resource.split('?', 1) |
| parameters = None |
| if len(resources) == 2: |
| parameters = parse.unquote(resources[1]) |
| message_parameters = (b'; %s\r\n' % parameters.encode('utf-8') if parameters else b'\r\n') |
| |
| message = (b'HTTP/1.1 101 Switching Protocols\r\n' |
| b'Upgrade: websocket\r\n' |
| b'Connection: Upgrade\r\n' |
| b'Sec-WebSocket-Accept: %s\r\n' |
| b'Sec-WebSocket-Extensions: permessage-deflate' |
| b'%s\r\n') % (compute_accept_from_unicode(request.headers_in['Sec-WebSocket-Key']), message_parameters) |
| |
| request.connection.write(message) |
| # Prevents pywebsocket from sending its own handshake message. |
| raise handshake.AbortedByUserException('Abort the connection') |
| |
| |
| def web_socket_transfer_data(request): |
| pass |
