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#!/usr/bin/python
from mod_pywebsocket import common
_GOODBYE_MESSAGE = u'Goodbye'
def web_socket_do_extra_handshake(request):
# This example handler accepts any request. See origin_check_wsh.py for how
# to reject access from untrusted scripts based on origin value.
if request.ws_requested_protocols:
if "echo" in request.ws_requested_protocols:
request.ws_protocol = "echo"
def web_socket_transfer_data(request):
while True:
line = request.ws_stream.receive_message()
if line is None:
return
if isinstance(line, str):
request.ws_stream.send_message(line, binary=False)
if line == _GOODBYE_MESSAGE:
return
else:
request.ws_stream.send_message(line, binary=True)
def web_socket_passive_closing_handshake(request):
# Echo close status code and reason
code, reason = request.ws_close_code, request.ws_close_reason
# No status received is a reserved pseudo code representing an empty code,
# so echo back an empty code in this case.
if code == common.STATUS_NO_STATUS_RECEIVED:
code = None
return code, reason
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