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)
conns = [c.connection for c in self.connections.keys()]
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 == 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)
frame = websockets.Frame.from_file(source_conn.rfile)
self.connections[source_conn].receive_bytes(bytes(frame))
source_conn.send(self.connections[source_conn].bytes_to_send())
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.channel.tell("websocket_end", self.flow)
def __call__(self):
client = self.client_conn.connection
server = self.server_conn.connection
conns = [client, server]
try:
while not self.channel.should_exit.is_set():
r = tcp.ssl_read_select(conns, 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)
if not self._handle_frame(frame, source_conn, other_conn,
is_server):
return
except (socket.error, exceptions.TcpException, SSL.Error) as e:
self.log(
"WebSockets connection closed unexpectedly by {}: {}".format(
"server" if is_server else "client", repr(e)), "info")
except Exception as e: # pragma: no cover
raise exceptions.ProtocolException(
"Error in WebSockets connection: {}".format(repr(e)))
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)
self.flow.metadata['websocket_handshake'] = self.handshake_flow
self.handshake_flow.metadata['websocket_flow'] = self.flow
self.channel.ask("websocket_start", self.flow)
client = self.client_conn.connection
server = self.server_conn.connection
conns = [client, server]
try:
while not self.channel.should_exit.is_set():
r = tcp.ssl_read_select(conns, 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)
if not self._handle_frame(frame, source_conn, other_conn, is_server):
return
except (socket.error, exceptions.TcpException, SSL.Error) as e:
self.flow.error = flow.Error("WebSocket connection closed unexpectedly: {}".format(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)
def __call__(self):
self.connect()
client = self.client_conn.connection
server = self.server_conn.connection
buf = memoryview(bytearray(self.chunk_size))
# send CONNECT, expect 200 OK
connect_req = make_connect_request((self.host, self.port))
server.send(assemble_request(connect_req))
resp = server.recv(1024).decode()
if not resp.startswith('HTTP/1.1 200 OK'):
raise BubbleFlexPassthruException('CONNECT request error: ' + resp)
conns = [client, server]
# https://github.com/openssl/openssl/issues/6234
for conn in conns:
if isinstance(conn, SSL.Connection) and hasattr(
SSL._lib, "SSL_clear_mode"):
SSL._lib.SSL_clear_mode(conn._ssl,
SSL._lib.SSL_MODE_AUTO_RETRY)
try:
while not self.channel.should_exit.is_set():
r = ssl_read_select(conns, 10)
for conn in r:
dst = server if conn == client else client
try:
size = conn.recv_into(buf, self.chunk_size)
except (SSL.WantReadError, SSL.WantWriteError):
continue
if not size:
conns.remove(conn)
# Shutdown connection to the other peer
if isinstance(conn, SSL.Connection):
# We can't half-close a connection, so we just close everything here.
# Sockets will be cleaned up on a higher level.
return
else:
dst.shutdown(socket.SHUT_WR)
if len(conns) == 0:
return
continue
tcp_message = tcp.TCPMessage(dst == server,
buf[:size].tobytes())
dst.sendall(tcp_message.content)
except (socket.error, exceptions.TcpException, SSL.Error) as e:
bubble_log.error('exception: ' + repr(e))
def __call__(self):
self._initiate_server_conn()
self._complete_handshake()
client = self.client_conn.connection
server = self.server_conn.connection
conns = [client, server]
try:
while True:
r = tcp.ssl_read_select(conns, 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)
with source_conn.h2.lock:
try:
raw_frame = b''.join(
http2.read_raw_frame(source_conn.rfile))
except:
# read frame failed: connection closed
self._kill_all_streams()
return
if source_conn.h2.state_machine.state == h2.connection.ConnectionState.CLOSED:
self.log(
"HTTP/2 connection entered closed state already",
"debug")
return
incoming_events = source_conn.h2.receive_data(
raw_frame)
source_conn.send(source_conn.h2.data_to_send())
for event in incoming_events:
if not self._handle_event(event, source_conn,
other_conn, is_server):
# connection terminated: GoAway
self._kill_all_streams()
return
self._cleanup_streams()
except Exception as e: # pragma: no cover
self.log(repr(e), "info")
self.log(traceback.format_exc(), "debug")
self._kill_all_streams()
def __call__(self):
self._initiate_server_conn()
self._complete_handshake()
conns = [c.connection for c in self.connections.keys()]
try:
while True:
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)
with self.connections[source_conn].lock:
try:
_, consumed_bytes = http2.read_frame(
source_conn.rfile)
except:
# read frame failed: connection closed
self._kill_all_streams()
return
if self.connections[
source_conn].state_machine.state == h2.connection.ConnectionState.CLOSED:
self.log(
"HTTP/2 connection entered closed state already",
"debug")
return
incoming_events = self.connections[
source_conn].receive_data(consumed_bytes)
source_conn.send(
self.connections[source_conn].data_to_send())
for event in incoming_events:
if not self._handle_event(event, source_conn,
other_conn, is_server):
# connection terminated: GoAway
self._kill_all_streams()
return
self._cleanup_streams()
except Exception as e: # pragma: no cover
self.log(repr(e), "info")
self._kill_all_streams()
def __call__(self):
self._initiate_server_conn()
self._complete_handshake()
client = self.client_conn.connection
server = self.server_conn.connection
conns = [client, server]
try:
while True:
r = tcp.ssl_read_select(conns, 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)
with source_conn.h2.lock:
try:
raw_frame = b''.join(http2.read_raw_frame(source_conn.rfile))
except:
# read frame failed: connection closed
self._kill_all_streams()
return
if source_conn.h2.state_machine.state == h2.connection.ConnectionState.CLOSED:
self.log("HTTP/2 connection entered closed state already", "debug")
return
incoming_events = source_conn.h2.receive_data(raw_frame)
source_conn.send(source_conn.h2.data_to_send())
for event in incoming_events:
if not self._handle_event(event, source_conn, other_conn, is_server):
# connection terminated: GoAway
self._kill_all_streams()
return
self._cleanup_streams()
except Exception as e: # pragma: no cover
self.log(repr(e), "info")
self.log(traceback.format_exc(), "debug")
self._kill_all_streams()
def __call__(self):
client = self.client_conn.connection
server = self.server_conn.connection
conns = [client, server]
try:
while not self.channel.should_exit.is_set():
r = tcp.ssl_read_select(conns, 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)
if not self._handle_frame(frame, source_conn, other_conn, is_server):
return
except (socket.error, exceptions.TcpException, SSL.Error) as e:
self.log("WebSockets connection closed unexpectedly by {}: {}".format(
"server" if is_server else "client", repr(e)), "info")
except Exception as e: # pragma: no cover
raise exceptions.ProtocolException("Error in WebSockets connection: {}".format(repr(e)))
