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add ALLOW_LAN_UDP hub setting

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Jack Robison 2021-04-28 15:28:00 -04:00
parent c465d6a6c2
commit c094d8f2e8
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GPG key ID: DF25C68FE0239BB2
4 changed files with 14 additions and 7 deletions
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6
lbry/utils.py
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@ -380,13 +380,15 @@ CARRIER_GRADE_NAT_SUBNET = ipaddress.ip_network('100.64.0.0/10')
IPV4_TO_6_RELAY_SUBNET = ipaddress.ip_network('192.88.99.0/24')
def is_valid_public_ipv4(address, allow_localhost: bool = False):
def is_valid_public_ipv4(address, allow_localhost: bool = False, allow_lan: bool = False):
try:
parsed_ip = ipaddress.ip_address(address)
if parsed_ip.is_loopback and allow_localhost:
return True
if allow_lan and parsed_ip.is_private:
return True
if any((parsed_ip.version != 4, parsed_ip.is_unspecified, parsed_ip.is_link_local, parsed_ip.is_loopback,
parsed_ip.is_multicast, parsed_ip.is_reserved, parsed_ip.is_private, parsed_ip.is_reserved)):
parsed_ip.is_multicast, parsed_ip.is_reserved, parsed_ip.is_private)):
return False
else:
return not any((CARRIER_GRADE_NAT_SUBNET.supernet_of(ipaddress.ip_network(f"{address}/32")),

1
lbry/wallet/server/env.py
View file

@ -73,6 +73,7 @@ class Env:
self.tor_banner_file = self.default('TOR_BANNER_FILE', self.banner_file)
self.anon_logs = self.boolean('ANON_LOGS', False)
self.log_sessions = self.integer('LOG_SESSIONS', 3600)
self.allow_lan_udp = self.boolean('ALLOW_LAN_UDP', False)
# Peer discovery
self.peer_discovery = self.peer_discovery_enum()
self.peer_announce = self.boolean('PEER_ANNOUNCE', True)

2
lbry/wallet/server/server.py
View file

@ -115,7 +115,7 @@ class Server:
if self.env.udp_port:
await self.bp.status_server.start(
0, bytes.fromhex(self.bp.coin.GENESIS_HASH)[::-1],
self.env.host, self.env.udp_port
self.env.host, self.env.udp_port, self.env.allow_lan_udp
)
await _start_cancellable(self.bp.fetch_and_process_blocks)

12
lbry/wallet/server/udp.py
View file

@ -70,7 +70,7 @@ class SPVServerStatusProtocol(asyncio.DatagramProtocol):
PROTOCOL_VERSION = 1
def __init__(self, height: int, tip: bytes, throttle_cache_size: int = 1024, throttle_reqs_per_sec: int = 10,
allow_localhost: bool = False):
allow_localhost: bool = False, allow_lan: bool = False):
super().__init__()
self.transport: Optional[asyncio.transports.DatagramTransport] = None
self._height = height
@ -82,6 +82,7 @@ class SPVServerStatusProtocol(asyncio.DatagramProtocol):
self._should_log = LRUCache(throttle_cache_size)
self._min_delay = 1 / throttle_reqs_per_sec
self._allow_localhost = allow_localhost
self._allow_lan = allow_lan
def update_cached_response(self):
self._cached_response = SPVPong.make(self._height, self._tip, self._flags, self.PROTOCOL_VERSION)
@ -121,7 +122,8 @@ class SPVServerStatusProtocol(asyncio.DatagramProtocol):
except (ValueError, struct.error, AttributeError, TypeError):
# log.exception("derp")
return
if is_valid_public_ipv4(addr[0], allow_localhost=self._allow_localhost) and addr[1] >= 1024:
if addr[1] >= 1024 and is_valid_public_ipv4(
addr[0], allow_localhost=self._allow_localhost, allow_lan=self._allow_lan):
self.transport.sendto(self.make_pong(addr[0]), addr)
else:
log.warning("odd packet from %s:%i", addr[0], addr[1])
@ -142,12 +144,14 @@ class StatusServer:
def __init__(self):
self._protocol: Optional[SPVServerStatusProtocol] = None
async def start(self, height: int, tip: bytes, interface: str, port: int):
async def start(self, height: int, tip: bytes, interface: str, port: int, allow_lan: bool = False):
if self.is_running:
return
loop = asyncio.get_event_loop()
interface = interface if interface.lower() != 'localhost' else '127.0.0.1'
self._protocol = SPVServerStatusProtocol(height, tip, allow_localhost=interface == '127.0.0.1')
self._protocol = SPVServerStatusProtocol(
height, tip, allow_localhost=interface == '127.0.0.1', allow_lan=allow_lan
)
await loop.create_datagram_endpoint(lambda: self._protocol, (interface, port))
log.info("started udp status server on %s:%i", interface, port)