async def _verify_peer(self, session, peer):
if not peer.is_tor:
address = session.peer_address()
if address:
peer.ip_addr = address[0]
# server.version goes first
message = 'server.version'
result = await session.send_request(message, self.server_version_args)
assert_good(message, result, list)
# Protocol version 1.1 returns a pair with the version first
if len(result) != 2 or not all(isinstance(x, str) for x in result):
raise BadPeerError(f'bad server.version result: {result}')
server_version, protocol_version = result
peer.server_version = server_version
peer.features['server_version'] = server_version
ptuple = protocol_tuple(protocol_version)
# FIXME: Make concurrent preserving the exception
await self._send_headers_subscribe(session, peer, ptuple)
await self._send_server_features(session, peer)
await self._send_peers_subscribe(session, peer)
async def _verify_peer(self, session, peer):
if self._is_blacklisted(peer.host):
raise BadPeerError('blacklisted')
if not peer.is_tor:
address = session.peer_address()
if address:
peer.ip_addr = address[0]
# server.version goes first
message = 'server.version'
result = await session.send_request(message, self.server_version_args)
assert_good(message, result, list)
# Protocol version 1.1 returns a pair with the version first
if len(result) != 2 or not all(isinstance(x, str) for x in result):
raise BadPeerError(f'bad server.version result: {result}')
server_version, protocol_version = result
peer.server_version = server_version
peer.features['server_version'] = server_version
ptuple = protocol_tuple(protocol_version)
async with TaskGroup() as g:
await g.spawn(self._send_headers_subscribe(session, peer, ptuple))
await g.spawn(self._send_server_features(session, peer))
peers_task = await g.spawn(self._send_peers_subscribe
(session, peer))
# Process reported peers if remote peer is good
peers = peers_task.result()
await self._note_peers(peers)
features = self._features_to_register(peer, peers)
if features:
self.logger.info(f'registering ourself with {peer}')
# We only care to wait for the response
await session.send_request('server.add_peer', [features])
async def _verify_peer(self, session, peer):
# store IP address for peer
if not peer.is_tor:
address = session.peer_address()
if address:
peer.ip_addr = address[0]
if self._is_blacklisted(peer):
raise BadPeerError('blacklisted')
# Bucket good recent peers; forbid many servers from similar IPs
# FIXME there's a race here, when verifying multiple peers
# that belong to the same bucket ~simultaneously
recent_peers = self._get_recent_good_peers()
if peer in recent_peers:
recent_peers.remove(peer)
onion_peers = []
buckets = defaultdict(list)
for other_peer in recent_peers:
if other_peer.is_tor:
onion_peers.append(other_peer)
else:
buckets[other_peer.bucket_for_internal_purposes()].append(other_peer)
if peer.is_tor:
# keep number of onion peers below half of all peers,
# but up to 100 is OK regardless
if len(onion_peers) > len(recent_peers) // 2 >= 100:
raise BadPeerError('too many onion peers already')
else:
bucket = peer.bucket_for_internal_purposes()
if len(buckets[bucket]) > 0:
raise BadPeerError(f'too many peers already in bucket {bucket}')
# server.version goes first
message = 'server.version'
result = await session.send_request(message, self.server_version_args)
assert_good(message, result, list)
# Protocol version 1.1 returns a pair with the version first
if len(result) != 2 or not all(isinstance(x, str) for x in result):
raise BadPeerError(f'bad server.version result: {result}')
server_version, protocol_version = result
peer.server_version = server_version
peer.features['server_version'] = server_version
ptuple = protocol_tuple(protocol_version)
async with TaskGroup() as g:
await g.spawn(self._send_headers_subscribe(session, peer, ptuple))
await g.spawn(self._send_server_features(session, peer))
peers_task = await g.spawn(self._send_peers_subscribe
(session, peer))
# Process reported peers if remote peer is good
peers = peers_task.result()
await self._note_peers(peers)
features = self._features_to_register(peer, peers)
if features:
self.logger.info(f'registering ourself with {peer}')
# We only care to wait for the response
await session.send_request('server.add_peer', [features])
def _protocol_version_string(self, key):
version_str = self.features.get(key)
ptuple = protocol_tuple(version_str)
return version_string(ptuple)