def do_handshake(self):
"""Perform WebSocket Handshake.
On _request, we set
ws_resource, ws_protocol, ws_location, ws_origin, ws_challenge,
ws_challenge_md5: WebSocket handshake information.
ws_stream: Frame generation/parsing class.
ws_version: Protocol version.
Raises:
HandshakeException: when any error happened in parsing the opening
handshake request.
"""
# 5.1 Reading the client's opening handshake.
# dispatcher sets it in self._request.
check_header_lines(self._request, _MANDATORY_HEADERS)
self._set_resource()
self._set_subprotocol()
self._set_location()
self._set_origin()
self._set_challenge_response()
self._set_protocol_version()
self._dispatcher.do_extra_handshake(self._request)
self._send_handshake()
def do_handshake(self):
"""Perform WebSocket Handshake.
On _request, we set
ws_resource, ws_protocol, ws_location, ws_origin, ws_challenge,
ws_challenge_md5: WebSocket handshake information.
ws_stream: Frame generation/parsing class.
ws_version: Protocol version.
Raises:
HandshakeException: when any error happened in parsing the opening
handshake request.
"""
# 5.1 Reading the client's opening handshake.
# dispatcher sets it in self._request.
check_header_lines(self._request, _MANDATORY_HEADERS)
self._set_resource()
self._set_subprotocol()
self._set_location()
self._set_origin()
self._set_challenge_response()
self._set_protocol_version()
self._dispatcher.do_extra_handshake(self._request)
self._send_handshake()
def do_handshake(self):
check_header_lines(self._request, _MANDATORY_HEADERS)
self._request.ws_resource = self._request.uri
unused_host = get_mandatory_header(self._request, common.HOST_HEADER)
self._get_origin()
self._check_version()
self._set_protocol()
self._set_extensions()
key = self._get_key()
(accept, accept_binary) = compute_accept(key)
self._logger.debug('Sec-WebSocket-Accept: %r (%s)', accept,
util.hexify(accept_binary))
self._logger.debug('IETF HyBi 07 protocol')
self._request.ws_version = common.VERSION_HYBI07
stream_options = StreamOptions()
stream_options.deflate = self._request.ws_deflate
self._request.ws_stream = Stream(self._request, stream_options)
self._request.ws_close_code = None
self._request.ws_close_reason = None
self._dispatcher.do_extra_handshake(self._request)
if self._request.ws_requested_protocols is not None:
if self._request.ws_protocol is None:
raise HandshakeError(
'do_extra_handshake must choose one subprotocol from '
'ws_requested_protocols and set it to ws_protocol')
# TODO(tyoshino): Validate selected subprotocol value.
self._logger.debug('Subprotocol accepted: %r',
self._request.ws_protocol)
else:
if self._request.ws_protocol is not None:
raise HandshakeError(
'ws_protocol must be None when the client didn\'t request '
'any subprotocol')
self._send_handshake(accept)
self._logger.debug('Sent opening handshake response')
