def on_shared_secret_response(self, msg):
logger.info("Received shared secret response")
relay = MediaRelay()
for attr in msg.attributes:
if attr.type == AttributeTypes.USERNAME:
relay.username = base64.b64encode(attr.value)
elif attr.type == AttributeTypes.PASSWORD:
relay.password = base64.b64encode(attr.value)
elif attr.type == AttributeTypes.ALTERNATE_SERVER:
relay.ip, relay.port = parse_server(attr.value)
self.on_relay_discovered(relay)
def on_message_received(self, transport, data, length):
msg = TURNMessage()
msg.parse(data)
if self._requests.get(msg.id, None) is None:
return
else:
del self._requests[msg.id]
if msg.type == MessageTypes.SHARED_SECRET_ERROR:
error_msg = None
realm = None
nonce = None
for attr in msg.attributes:
if attr.type == AttributeTypes.REALM:
realm = attr.value
elif attr.type == AttributeTypes.NONCE:
nonce = attr.value
elif attr.type == AttributeTypes.ERROR_CODE:
error_msg = attr.value[4:]
if error_msg == "Unauthorized":
if realm is not None or nonce is not None:
self.request_shared_secret_with_integrity(None, None, realm, nonce)
return
elif msg.type == MessageTypes.SHARED_SECRET_RESPONSE:
relay = MediaRelay()
for attr in msg.attributes:
if attr.type == AttributeTypes.USERNAME:
relay.username = base64.b64encode(attr.value)
elif attr.type == AttributeTypes.PASSWORD:
relay.password = base64.b64encode(attr.value)
elif attr.type == AttributeTypes.ALTERNATE_SERVER:
server = struct.unpack("!HHcccc", attr.value)
ip = map(lambda x: ord(x), server[2:6])
relay.ip = "%i.%i.%i.%i" % tuple(ip)
relay.port = server[1]
self._relays.append(relay)
if not self._requests:
self._done()
def on_message_received(self, transport, data, length):
msg = TURNMessage()
msg.parse(data)
if self._requests.get(msg.id, None) is None:
return
else:
del self._requests[msg.id]
if msg.type == MessageTypes.SHARED_SECRET_ERROR:
error_msg = None
realm = None
nonce = None
for attr in msg.attributes:
if attr.type == AttributeTypes.REALM:
realm = attr.value
elif attr.type == AttributeTypes.NONCE:
nonce = attr.value
elif attr.type == AttributeTypes.ERROR_CODE:
error_msg = attr.value[4:]
if error_msg == "Unauthorized":
if realm is not None or nonce is not None:
self.request_shared_secret_with_integrity(
None, None, realm, nonce)
return
elif msg.type == MessageTypes.SHARED_SECRET_RESPONSE:
relay = MediaRelay()
for attr in msg.attributes:
if attr.type == AttributeTypes.USERNAME:
relay.username = base64.b64encode(attr.value)
elif attr.type == AttributeTypes.PASSWORD:
relay.password = base64.b64encode(attr.value)
elif attr.type == AttributeTypes.ALTERNATE_SERVER:
server = struct.unpack("!HHcccc", attr.value)
ip = map(lambda x: ord(x), server[2:6])
relay.ip = "%i.%i.%i.%i" % tuple(ip)
relay.port = server[1]
self._relays.append(relay)
if not self._requests:
self._done()