def _accept_connection(self):
subprotocol_header = ''
subprotocols = self.request.headers.get("Sec-WebSocket-Protocol", '')
subprotocols = [s.strip() for s in subprotocols.split(',')]
if subprotocols:
selected = self.handler.select_subprotocol(subprotocols)
if selected:
assert selected in subprotocols
subprotocol_header = ("Sec-WebSocket-Protocol: %s\r\n" %
selected)
extension_header = ''
extensions = self._parse_extensions_header(self.request.headers)
for ext in extensions:
if (ext[0] == 'permessage-deflate'
and self._compression_options is not None):
# TODO: negotiate parameters if compression_options
# specifies limits.
self._create_compressors('server', ext[1])
if ('client_max_window_bits' in ext[1]
and ext[1]['client_max_window_bits'] is None):
# Don't echo an offered client_max_window_bits
# parameter with no value.
del ext[1]['client_max_window_bits']
extension_header = (
'Sec-WebSocket-Extensions: %s\r\n' %
httputil._encode_header('permessage-deflate', ext[1]))
break
response_headers = ''
if self._response_headers is not None:
for header_name, header_value in self._response_headers.get_all():
response_headers += '%s: %s\r\n' % (header_name, header_value)
if self.stream.closed():
self._abort()
return
self.stream.write(
tornado.escape.utf8(
"HTTP/1.1 101 Switching Protocols\r\n"
"Upgrade: websocket\r\n"
"Connection: Upgrade\r\n"
"Sec-WebSocket-Accept: %s\r\n"
"%s%s%s"
"\r\n" % (self._challenge_response(), subprotocol_header,
extension_header, response_headers)))
self._run_callback(self.handler.open, *self.handler.open_args,
**self.handler.open_kwargs)
self._receive_frame()
def _accept_connection(self):
subprotocol_header = ''
subprotocols = self.request.headers.get("Sec-WebSocket-Protocol", '')
subprotocols = [s.strip() for s in subprotocols.split(',')]
if subprotocols:
selected = self.handler.select_subprotocol(subprotocols)
if selected:
assert selected in subprotocols
subprotocol_header = ("Sec-WebSocket-Protocol: %s\r\n"
% selected)
extension_header = ''
extensions = self._parse_extensions_header(self.request.headers)
for ext in extensions:
if (ext[0] == 'permessage-deflate' and
self._compression_options is not None):
# TODO: negotiate parameters if compression_options
# specifies limits.
self._create_compressors('server', ext[1])
if ('client_max_window_bits' in ext[1] and
ext[1]['client_max_window_bits'] is None):
# Don't echo an offered client_max_window_bits
# parameter with no value.
del ext[1]['client_max_window_bits']
extension_header = ('Sec-WebSocket-Extensions: %s\r\n' %
httputil._encode_header(
'permessage-deflate', ext[1]))
break
response_headers = ''
if self._response_headers is not None:
for header_name, header_value in self._response_headers.get_all():
response_headers += '%s: %s\r\n' % (header_name, header_value)
if self.stream.closed():
self._abort()
return
self.stream.write(tornado.escape.utf8(
"HTTP/1.1 101 Switching Protocols\r\n"
"Upgrade: websocket\r\n"
"Connection: Upgrade\r\n"
"Sec-WebSocket-Accept: %s\r\n"
"%s%s%s"
"\r\n" % (self._challenge_response(), subprotocol_header,
extension_header, response_headers)))
self._run_callback(self.handler.open, *self.handler.open_args,
**self.handler.open_kwargs)
self._receive_frame()
def _accept_connection(self):
subprotocols = [
s.strip()
for s in self.request.headers.get_list("Sec-WebSocket-Protocol")
]
if subprotocols:
selected = self.handler.select_subprotocol(subprotocols)
if selected:
assert selected in subprotocols
self.handler.set_header("Sec-WebSocket-Protocol", selected)
extensions = self._parse_extensions_header(self.request.headers)
for ext in extensions:
if (ext[0] == 'permessage-deflate'
and self._compression_options is not None):
# TODO: negotiate parameters if compression_options
# specifies limits.
self._create_compressors('server', ext[1],
self._compression_options)
if ('client_max_window_bits' in ext[1]
and ext[1]['client_max_window_bits'] is None):
# Don't echo an offered client_max_window_bits
# parameter with no value.
del ext[1]['client_max_window_bits']
self.handler.set_header(
"Sec-WebSocket-Extensions",
httputil._encode_header('permessage-deflate', ext[1]))
break
self.handler.clear_header("Content-Type")
self.handler.set_status(101)
self.handler.set_header("Upgrade", "websocket")
self.handler.set_header("Connection", "Upgrade")
self.handler.set_header("Sec-WebSocket-Accept",
self._challenge_response())
self.handler.finish()
self.handler._attach_stream()
self.stream = self.handler.stream
self.start_pinging()
self._run_callback(self.handler.open, *self.handler.open_args,
**self.handler.open_kwargs)
self._receive_frame()
def _accept_connection(self):
subprotocol_header = ""
subprotocols = self.request.headers.get("Sec-WebSocket-Protocol", "")
subprotocols = [s.strip() for s in subprotocols.split(",")]
if subprotocols:
selected = self.handler.select_subprotocol(subprotocols)
if selected:
assert selected in subprotocols
subprotocol_header = "Sec-WebSocket-Protocol: %s\r\n" % selected
extension_header = ""
extensions = self._parse_extensions_header(self.request.headers)
for ext in extensions:
if ext[0] == "permessage-deflate" and self._compression_options is not None:
# TODO: negotiate parameters if compression_options
# specifies limits.
self._create_compressors("server", ext[1])
if "client_max_window_bits" in ext[1] and ext[1]["client_max_window_bits"] is None:
# Don't echo an offered client_max_window_bits
# parameter with no value.
del ext[1]["client_max_window_bits"]
extension_header = "Sec-WebSocket-Extensions: %s\r\n" % httputil._encode_header(
"permessage-deflate", ext[1]
)
break
if self.stream.closed():
self._abort()
return
self.stream.write(
tornado.escape.utf8(
"HTTP/1.1 101 Switching Protocols\r\n"
"Upgrade: websocket\r\n"
"Connection: Upgrade\r\n"
"Sec-WebSocket-Accept: %s\r\n"
"%s%s"
"\r\n" % (self._challenge_response(), subprotocol_header, extension_header)
)
)
self._run_callback(self.handler.open, *self.handler.open_args, **self.handler.open_kwargs)
self._receive_frame()
def _accept_connection(self):
subprotocols = self.request.headers.get("Sec-WebSocket-Protocol", '')
subprotocols = [s.strip() for s in subprotocols.split(',')]
if subprotocols:
selected = self.handler.select_subprotocol(subprotocols)
if selected:
assert selected in subprotocols
self.handler.set_header("Sec-WebSocket-Protocol", selected)
extensions = self._parse_extensions_header(self.request.headers)
for ext in extensions:
if (ext[0] == 'permessage-deflate' and
self._compression_options is not None):
# TODO: negotiate parameters if compression_options
# specifies limits.
self._create_compressors('server', ext[1], self._compression_options)
if ('client_max_window_bits' in ext[1] and
ext[1]['client_max_window_bits'] is None):
# Don't echo an offered client_max_window_bits
# parameter with no value.
del ext[1]['client_max_window_bits']
self.handler.set_header("Sec-WebSocket-Extensions",
httputil._encode_header(
'permessage-deflate', ext[1]))
break
self.handler.clear_header("Content-Type")
self.handler.set_status(101)
self.handler.set_header("Upgrade", "websocket")
self.handler.set_header("Connection", "Upgrade")
self.handler.set_header("Sec-WebSocket-Accept", self._challenge_response())
self.handler.finish()
self.handler._attach_stream()
self.stream = self.handler.stream
self.start_pinging()
self._run_callback(self.handler.open, *self.handler.open_args,
**self.handler.open_kwargs)
self._receive_frame()
