26 lines
852 B
Python
26 lines
852 B
Python
from libp2p.kademlia.network import KademliaServer
|
|
from libp2p.peer.id import ID
|
|
from libp2p.peer.peerinfo import PeerInfo
|
|
from libp2p.routing.interfaces import IPeerRouting
|
|
|
|
|
|
class KadmeliaPeerRouter(IPeerRouting):
|
|
server: KademliaServer
|
|
|
|
def __init__(self, dht_server: KademliaServer) -> None:
|
|
self.server = dht_server
|
|
|
|
async def find_peer(self, peer_id: ID) -> PeerInfo:
|
|
"""
|
|
Find a specific peer
|
|
:param peer_id: peer to search for
|
|
:return: PeerInfo of specified peer
|
|
"""
|
|
# switching peer_id to xor_id used by kademlia as node_id
|
|
xor_id = peer_id.xor_id
|
|
# ignore type for kad
|
|
value = await self.server.get(xor_id) # type: ignore
|
|
return (
|
|
PeerInfo.info_from_string(value) if value else None
|
|
) # TODO: should raise error if None?
|