def __call__(self):
self.flow = WebSocketFlow(self.client_conn, self.server_conn, self.handshake_flow, self)
self.flow.metadata['websocket_handshake'] = self.handshake_flow.id
self.handshake_flow.metadata['websocket_flow'] = self.flow.id
self.channel.ask("websocket_start", self.flow)
client = self.client_conn.connection
server = self.server_conn.connection
conns = [client, server]
close_received = False
try:
while not self.channel.should_exit.is_set():
r = tcp.ssl_read_select(conns, 0.1)
for conn in r:
source_conn = self.client_conn if conn == client else self.server_conn
other_conn = self.server_conn if conn == client else self.client_conn
is_server = (conn == self.server_conn.connection)
frame = websockets.Frame.from_file(source_conn.rfile)
cont = self._handle_frame(frame, source_conn, other_conn, is_server)
if not cont:
if close_received:
return
else:
close_received = True
except (socket.error, exceptions.TcpException, SSL.Error) as e:
s = 'server' if is_server else 'client'
self.flow.error = flow.Error("WebSocket connection closed unexpectedly by {}: {}".format(s, repr(e)))
self.channel.tell("websocket_error", self.flow)
finally:
self.channel.tell("websocket_end", self.flow)
def __call__(self):
self.flow = WebSocketFlow(self.client_conn, self.server_conn,
self.handshake_flow)
self.flow.metadata['websocket_handshake'] = self.handshake_flow.id
self.handshake_flow.metadata['websocket_flow'] = self.flow.id
self.channel.ask("websocket_start", self.flow)
conns = [c.connection for c in self.connections.keys()]
close_received = False
try:
while not self.channel.should_exit.is_set():
self._inject_messages(self.client_conn,
self.flow._inject_messages_client)
self._inject_messages(self.server_conn,
self.flow._inject_messages_server)
r = tcp.ssl_read_select(conns, 0.1)
for conn in r:
source_conn = self.client_conn if conn == self.client_conn.connection else self.server_conn
other_conn = self.server_conn if conn == self.client_conn.connection else self.client_conn
is_server = (source_conn == self.server_conn)
header, frame, consumed_bytes = websocket.read_frame(
source_conn.rfile)
self.log(
"WebSocket Frame from {}: {}, {}".format(
"server" if is_server else "client",
header,
frame,
), "debug")
data = self.connections[source_conn].receive_data(
consumed_bytes)
source_conn.send(data)
if close_received:
return
for event in self.connections[source_conn].events():
if not self._handle_event(event, source_conn,
other_conn, is_server):
if not close_received:
close_received = True
except (socket.error, exceptions.TcpException, SSL.Error) as e:
s = 'server' if is_server else 'client'
self.flow.error = flow.Error(
"WebSocket connection closed unexpectedly by {}: {}".format(
s, repr(e)))
self.channel.tell("websocket_error", self.flow)
finally:
self.flow.ended = True
self.channel.tell("websocket_end", self.flow)