async def websocket_handshake(self, request):
# let the websockets package do the handshake with the client
headers = []
def get_header(k):
return request.headers.get(k, '')
def set_header(k, v):
headers.append((k, v))
try:
key = handshake.check_request(get_header)
handshake.build_response(set_header, key)
except InvalidHandshake:
raise InvalidUsage('Invalid websocket request')
# write the 101 response back to the client
rv = b'HTTP/1.1 101 Switching Protocols\r\n'
for k, v in headers:
rv += k.encode('utf-8') + b': ' + v.encode('utf-8') + b'\r\n'
rv += b'\r\n'
request.transport.write(rv)
# hook up the websocket protocol
self.websocket = WebSocketCommonProtocol(
max_size=self.websocket_max_size,
max_queue=self.websocket_max_queue)
self.websocket.connection_made(request.transport)
return self.websocket
def switch_protocols():
ws_protocol = WebSocketCommonProtocol()
transport._protocol = ws_protocol
ws_protocol.connection_made(transport)
# Ensure aiohttp doesn't interfere.
http_protocol.transport = None
asyncio. async (run_ws_handler(ws_protocol))
async def websocket_handshake(self, request, subprotocols=None):
# let the websockets package do the handshake with the client
headers = {}
try:
key = handshake.check_request(request.headers)
handshake.build_response(headers, key)
except InvalidHandshake:
raise InvalidUsage("Invalid websocket request")
subprotocol = None
if subprotocols and "Sec-Websocket-Protocol" in request.headers:
# select a subprotocol
client_subprotocols = [
p.strip()
for p in request.headers["Sec-Websocket-Protocol"].split(",")
]
for p in client_subprotocols:
if p in subprotocols:
subprotocol = p
headers["Sec-Websocket-Protocol"] = subprotocol
break
# write the 101 response back to the client
rv = b"HTTP/1.1 101 Switching Protocols\r\n"
for k, v in headers.items():
rv += k.encode("utf-8") + b": " + v.encode("utf-8") + b"\r\n"
rv += b"\r\n"
request.transport.write(rv)
# hook up the websocket protocol
self.websocket = WebSocketCommonProtocol(
close_timeout=self.websocket_timeout,
max_size=self.websocket_max_size,
max_queue=self.websocket_max_queue,
read_limit=self.websocket_read_limit,
write_limit=self.websocket_write_limit,
ping_interval=self.websocket_ping_interval,
ping_timeout=self.websocket_ping_timeout,
)
# we use WebSocketCommonProtocol because we don't want the handshake
# logic from WebSocketServerProtocol; however, we must tell it that
# we're running on the server side
self.websocket.is_client = False
self.websocket.side = "server"
self.websocket.subprotocol = subprotocol
self.websocket.connection_made(request.transport)
self.websocket.connection_open()
return self.websocket
async def websocket_handshake(self, request, subprotocols=None):
# let the websockets package do the handshake with the client
headers = []
def get_header(k):
return request.headers.get(k, '')
def set_header(k, v):
headers.append((k, v))
try:
key = handshake.check_request(get_header)
handshake.build_response(set_header, key)
except InvalidHandshake:
raise InvalidUsage('Invalid websocket request')
subprotocol = None
if subprotocols and 'Sec-Websocket-Protocol' in request.headers:
# select a subprotocol
client_subprotocols = [
p.strip()
for p in request.headers['Sec-Websocket-Protocol'].split(',')
]
for p in client_subprotocols:
if p in subprotocols:
subprotocol = p
set_header('Sec-Websocket-Protocol', subprotocol)
break
# write the 101 response back to the client
rv = b'HTTP/1.1 101 Switching Protocols\r\n'
for k, v in headers:
rv += k.encode('utf-8') + b': ' + v.encode('utf-8') + b'\r\n'
rv += b'\r\n'
request.transport.write(rv)
# hook up the websocket protocol
self.websocket = WebSocketCommonProtocol(
timeout=self.websocket_timeout,
max_size=self.websocket_max_size,
max_queue=self.websocket_max_queue,
read_limit=self.websocket_read_limit,
write_limit=self.websocket_write_limit)
self.websocket.subprotocol = subprotocol
self.websocket.connection_made(request.transport)
self.websocket.connection_open()
return self.websocket
async def websocket_handshake(self, request, subprotocols=None):
headers = {}
try:
key = handshake.check_request(request.headers)
handshake.build_response(headers, key)
except InvalidHandshake:
msg = "Invalid websocket request received."
if self.debug:
msg += "\n" + traceback.format_exc()
self.logger.error(msg)
self.on_response(msg)
raise RuntimeError(msg)
subprotocol = None
if subprotocols and "Sec-Websocket-Protocol" in request.headers:
# select a subprotocol
client_subprotocols = [
p.strip()
for p in request.headers["Sec-Websocket-Protocol"].split(",")
]
for p in client_subprotocols:
if p in subprotocols:
subprotocol = p
headers["Sec-Websocket-Protocol"] = subprotocol
break
# write the 101 response back to the client
rv = b"HTTP/1.1 101 Switching Protocols\r\n"
for k, v in headers.items():
rv += k.encode("utf-8") + b": " + v.encode("utf-8") + b"\r\n"
rv += b"\r\n"
request.transport.write(rv)
# hook up the websocket protocol
self.websocket = WebSocketCommonProtocol(
timeout=self.config.ws_timeout,
max_size=self.config.ws_max_size,
max_queue=self.config.ws_max_queue,
read_limit=self.config.ws_read_limit,
write_limit=self.config.ws_write_limit,
)
self.websocket.subprotocol = subprotocol
self.websocket.connection_made(request.transport)
self.websocket.connection_open()
return self.websocket
async def websocket_handshake(self, request, subprotocols=None):
# let the websockets package do the handshake with the client
headers = {}
try:
key = handshake.check_request(request.headers)
handshake.build_response(headers, key)
except InvalidHandshake:
raise InvalidUsage("Invalid websocket request")
subprotocol = None
if subprotocols and "Sec-Websocket-Protocol" in request.headers:
# select a subprotocol
client_subprotocols = [
p.strip()
for p in request.headers["Sec-Websocket-Protocol"].split(",")
]
for p in client_subprotocols:
if p in subprotocols:
subprotocol = p
headers["Sec-Websocket-Protocol"] = subprotocol
break
# write the 101 response back to the client
rv = b"HTTP/1.1 101 Switching Protocols\r\n"
for k, v in headers.items():
rv += k.encode("utf-8") + b": " + v.encode("utf-8") + b"\r\n"
rv += b"\r\n"
request.transport.write(rv)
# hook up the websocket protocol
self.websocket = WebSocketCommonProtocol(
timeout=self.websocket_timeout,
max_size=self.websocket_max_size,
max_queue=self.websocket_max_queue,
read_limit=self.websocket_read_limit,
write_limit=self.websocket_write_limit,
)
self.websocket.subprotocol = subprotocol
self.websocket.connection_made(request.transport)
self.websocket.connection_open()
return self.websocket
def data_received(self, data):
try:
if self.enabled:
self.websocket.data_received(data)
else:
self.parser.feed_data(data)
except HttpParserError as err:
logger.debug(err)
import ipdb; ipdb.set_trace()
exception = panic_exceptions.InvalidUsage('Bad Request')
self.write_error(exception)
except HttpParserUpgrade as err:
logger.debug(err)
self.enabled = True
response = panic_response.Response(b'')
try:
key = handshake.check_request(lambda x: self.headers.get(x).value)
handshake.build_response(response.assimilate, key)
except InvalidHandshake:
exception = panic_exceptions.InvalidUsage('Invalid websocket request')
self.write_error(exception)
else:
self.transport.write(response.channel('1.1'))
self.websocket = WebSocketCommonProtocol(
timeout=self.timeout,
max_size=self.max_size,
max_queue=self.max_queue,
read_limit=self.read_limit,
write_limit=self.write_limit)
self.websocket.subprotocol = None
#subprotocol
self.websocket.connection_made(self.transport)
self.websocket.connection_open()
self._request_handler_task = self.params.loop.create_task(
self.params.request_handler(self.request, self.websocket, self.transport))