async def _maintain_redirects(self):
# setup the gateway if necessary
if not self.upnp:
try:
self.upnp = await UPnP.discover(loop=self.component_manager.loop)
log.info("found upnp gateway: %s", self.upnp.gateway.manufacturer_string)
except Exception as err:
if isinstance(err, asyncio.CancelledError): # TODO: remove when updated to 3.8
raise
log.warning("upnp discovery failed: %s", err)
self.upnp = None
# update the external ip
external_ip = None
if self.upnp:
try:
external_ip = await self.upnp.get_external_ip()
if external_ip != "0.0.0.0" and not self.external_ip:
log.info("got external ip from UPnP: %s", external_ip)
except (asyncio.TimeoutError, UPnPError, NotImplementedError):
pass
if external_ip and not is_valid_public_ipv4(external_ip):
log.warning("UPnP returned a private/reserved ip - %s, checking lbry.com fallback", external_ip)
external_ip, _ = await utils.get_external_ip(self.conf.lbryum_servers)
if self.external_ip and self.external_ip != external_ip:
log.info("external ip changed from %s to %s", self.external_ip, external_ip)
if external_ip:
self.external_ip = external_ip
dht_component = self.component_manager.get_component(DHT_COMPONENT)
if dht_component:
dht_node = dht_component.component
dht_node.protocol.external_ip = external_ip
# assert self.external_ip is not None # TODO: handle going/starting offline
if not self.upnp_redirects and self.upnp: # setup missing redirects
log.info("add UPnP port mappings")
upnp_redirects = {}
if PEER_PROTOCOL_SERVER_COMPONENT not in self.component_manager.skip_components:
try:
upnp_redirects["TCP"] = await self.upnp.get_next_mapping(
self._int_peer_port, "TCP", "LBRY peer port", self._int_peer_port
)
except (UPnPError, asyncio.TimeoutError, NotImplementedError):
pass
if DHT_COMPONENT not in self.component_manager.skip_components:
try:
upnp_redirects["UDP"] = await self.upnp.get_next_mapping(
self._int_dht_node_port, "UDP", "LBRY DHT port", self._int_dht_node_port
)
except (UPnPError, asyncio.TimeoutError, NotImplementedError):
pass
if upnp_redirects:
log.info("set up redirects: %s", upnp_redirects)
self.upnp_redirects.update(upnp_redirects)
elif self.upnp: # check existing redirects are still active
found = set()
mappings = await self.upnp.get_redirects()
for mapping in mappings:
proto = mapping.protocol
if proto in self.upnp_redirects and mapping.external_port == self.upnp_redirects[proto]:
if mapping.lan_address == self.upnp.lan_address:
found.add(proto)
if 'UDP' not in found and DHT_COMPONENT not in self.component_manager.skip_components:
try:
udp_port = await self.upnp.get_next_mapping(self._int_dht_node_port, "UDP", "LBRY DHT port")
self.upnp_redirects['UDP'] = udp_port
log.info("refreshed upnp redirect for dht port: %i", udp_port)
except (asyncio.TimeoutError, UPnPError, NotImplementedError):
del self.upnp_redirects['UDP']
if 'TCP' not in found and PEER_PROTOCOL_SERVER_COMPONENT not in self.component_manager.skip_components:
try:
tcp_port = await self.upnp.get_next_mapping(self._int_peer_port, "TCP", "LBRY peer port")
self.upnp_redirects['TCP'] = tcp_port
log.info("refreshed upnp redirect for peer port: %i", tcp_port)
except (asyncio.TimeoutError, UPnPError, NotImplementedError):
del self.upnp_redirects['TCP']
if ('TCP' in self.upnp_redirects and
PEER_PROTOCOL_SERVER_COMPONENT not in self.component_manager.skip_components) and \
('UDP' in self.upnp_redirects and DHT_COMPONENT not in self.component_manager.skip_components):
if self.upnp_redirects:
log.debug("upnp redirects are still active")
def test_is_valid_ipv4(self):
self.assertFalse(
is_valid_public_ipv4('beee:eeee:eeee:eeee:eeee:eeee:eeee:eeef'))
self.assertFalse(
is_valid_public_ipv4('beee:eeee:eeee:eeee:eeee:eeee:eeee:eeef',
True))
self.assertFalse(is_valid_public_ipv4('2001:db8::ff00:42:8329'))
self.assertFalse(is_valid_public_ipv4('2001:db8::ff00:42:8329', True))
self.assertFalse(is_valid_public_ipv4('127.0.0.1'))
self.assertTrue(is_valid_public_ipv4('127.0.0.1', True))
self.assertFalse(is_valid_public_ipv4('172.16.0.1'))
self.assertFalse(is_valid_public_ipv4('172.16.0.1', True))
self.assertTrue(is_valid_public_ipv4('1.2.3.4'))
self.assertTrue(is_valid_public_ipv4('1.2.3.4', True))
self.assertFalse(is_valid_public_ipv4('derp'))
self.assertFalse(is_valid_public_ipv4('derp', True))
