def map_stun(self):
try:
external_ip, external_port, nat = stunsock.stun_socket(
self.socket, self.source_ip, self.source_port, **self.kwargs)
if external_port is not None:
return PortMappedSocket(self.socket, 'STUN', external_ip,
external_port, **nat)
except STUNUnavailableException:
pass
def map_stun(self):
try:
external_ip, external_port, nat = stunsock.stun_socket(
self.socket,
self.source_ip,
self.source_port,
**self.kwargs,
)
if external_port is not None:
return PortMappedSocket(self.socket, 'STUN', external_ip, external_port, **nat)
except STUNUnavailableException:
pass
def socket_factory(source_ip, source_port, *args, **kwargs):
"""
Create a port mapped socket via uPnP or STUN.
Args:
source_ip (ip string): the network interface/ip to bind
source_port (int): the local port to bind
*args: generic args that are passed to the below implementations
**kargs: generic kwargs that are passed to the below implementations
Return:
PortMappedSocket
"""
# prefer uPnP over STUN
upnp = upnpsock.connect()
if upnp is not None:
router, location = upnp
result = upnpsock.open_port(
router,
source_port,
)
if result is not None:
with stunsock.open_bare_socket(source_ip, source_port, *args, **kwargs) as sock:
try:
yield PortMappedSocket(sock, 'uPnP', result[0], result[1], **dict(
router_location=location
))
finally:
upnpsock.release_port(router, source_port)
else:
with stunsock.stun_socket(source_ip, source_port, *args, **kwargs) as (
sock,
external_ip,
external_port,
nat
):
if external_port is not None:
yield PortMappedSocket(sock, 'STUN', external_ip, external_port, **nat)
