def _get_key(self):
key = get_mandatory_header(self._request,
common.SEC_WEBSOCKET_KEY_HEADER)
decoded_key = self._validate_key(key)
self._logger.debug('%s: %r (%s)', common.SEC_WEBSOCKET_KEY_HEADER, key,
util.hexify(decoded_key))
return key.encode('UTF-8')
def _validate_connection_header(self):
connection = get_mandatory_header(self._request,
common.CONNECTION_HEADER)
try:
connection_tokens = parse_token_list(connection)
except HandshakeException as e:
raise HandshakeException('Failed to parse %s: %s' %
(common.CONNECTION_HEADER, e))
connection_is_valid = False
for token in connection_tokens:
if token.lower() == common.UPGRADE_CONNECTION_TYPE.lower():
connection_is_valid = True
break
if not connection_is_valid:
raise HandshakeException(
'%s header doesn\'t contain "%s"' %
(common.CONNECTION_HEADER, common.UPGRADE_CONNECTION_TYPE))
def _validate_request(self):
check_connect_method(self._request)
validate_mandatory_header(self._request, ':protocol', 'websocket')
get_mandatory_header(self._request, 'authority')
def _validate_request(self):
check_request_line(self._request)
validate_mandatory_header(self._request, common.UPGRADE_HEADER,
common.WEBSOCKET_UPGRADE_TYPE)
self._validate_connection_header()
unused_host = get_mandatory_header(self._request, common.HOST_HEADER)