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)
async with TaskGroup() as g:
await g.spawn(self._send_headers_subscribe(session, peer, ptuple))
await g.spawn(self._send_server_features(session, peer))
await g.spawn(self._send_peers_subscribe(session, peer))
def _protocol_version_string(self, key):
version_str = self.features.get(key)
ptuple = util.protocol_tuple(version_str)
return util.version_string(ptuple)