34 lines
1001 B
Python
34 lines
1001 B
Python
from libp2p.routing.interfaces import IPeerRouting
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from libp2p.kademlia.utils import digest
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from libp2p.peer.peerinfo import PeerInfo
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from libp2p.peer.peerdata import PeerData
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class KadmeliaPeerRouter(IPeerRouting):
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# pylint: disable=too-few-public-methods
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def __init__(self, dht_server):
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self.server = dht_server
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async def find_peer(self, peer_id):
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"""
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Find specific Peer
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FindPeer searches for a peer with given peer_id, returns a peer.PeerInfo
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with relevant addresses.
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"""
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# switching peer_id to xor_id used by kademlia as node_id
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xor_id = peer_id.get_xor_id()
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value = await self.server.get(xor_id)
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return decode_peerinfo(value)
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def decode_peerinfo(encoded):
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if isinstance(encoded, bytes):
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encoded = encoded.decode()
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lines = encoded.splitlines()
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peer_id = lines[0]
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addrs = lines[1:]
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peer_data = PeerData()
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peer_data.add_addrs(addrs)
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return PeerInfo(peer_id, addrs)
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