chromium/src/third_party/blink/web_tests/http/tests/websocket/close-on-unload_wsh.py

# Copyright 2009, 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.
import json
from six.moves.urllib import parse
from mod_pywebsocket import msgutil

connections = {}


def web_socket_do_extra_handshake(request):
    pass  # Always accept.


def web_socket_transfer_data(request):
    global connections
    r = request.ws_resource.split('?', 1)
    if len(r) == 1:
        return
    param = parse.parse_qs(r[1])
    if 'p' not in param:
        return
    page_group = param['p'][0]
    if page_group in connections:
        connections[page_group].add(request)
    else:
        connections[page_group] = set([request])
    message = None
    dataToBroadcast = {}
    try:
        message = msgutil.receive_message(request)
        # notify to client that message is received by server.
        msgutil.send_message(request, message)
        msgutil.receive_message(request)
        dataToBroadcast['message'] = message
        dataToBroadcast['closeCode'] = str(request.ws_close_code)
    finally:
        # request is closed. notify this dataToBroadcast to other WebSockets.
        connections[page_group].remove(request)
        for ws in connections[page_group]:
            msgutil.send_message(ws, json.dumps(dataToBroadcast))