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# Copyright (C) Research In Motion Limited 2011. All rights reserved.
#
# Redistribution and use in source and binary forms, with or without modification, are permitted provided that the
# following conditions are met:
#
# 1. Redistributions of source code must retain the above copyright notice, this list of conditions and the following
# disclaimer.
#
# 2. 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.
#
# THIS SOFTWARE IS PROVIDED BY APPLE INC. AND ITS 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
# APPLE INC. OR ITS 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 time
from mod_pywebsocket import stream
from mod_pywebsocket.handshake.hybi import compute_accept
def web_socket_do_extra_handshake(request):
# This simulates a broken server that sends a WebSocket frame before the
# handshake, and more frames afterwards. It is important that if this
# happens the client does not buffer all the frames as the server continues
# to send more data - it should abort after reading a reasonable number of
# bytes (set arbitrarily to 1024).
msg = 'HTTP/1.1 101 Switching \0Protocols\r\n'
msg += 'Upgrade: websocket\r\n'
msg += 'Connection: Upgrade\r\n'
msg += 'Sec-WebSocket-Accept: %s\r\n' % compute_accept(request.headers_in['Sec-WebSocket-Key'])[0]
msg += '\r\n'
request.connection.write(msg)
# continue writing data until the client disconnects
while True:
time.sleep(1)
numFrames = 1024 / len(frame) # write over 1024 bytes including the above handshake
for i in range(0, numFrames):
request.connection.write(frame)
def web_socket_transfer_data(request):
pass