44 lines
1.1 KiB
Python
44 lines
1.1 KiB
Python
import multiaddr
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import multiaddr.util
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from .id import id_b58_decode
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from .peerdata import PeerData
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class PeerInfo:
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# pylint: disable=too-few-public-methods
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def __init__(self, peer_id, peer_data=None):
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self.peer_id = peer_id
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self.addrs = peer_data.get_addrs() if peer_data else None
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def info_from_p2p_addr(addr):
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if not addr:
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raise InvalidAddrError()
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parts = multiaddr.util.split(addr)
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if not parts:
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raise InvalidAddrError()
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p2p_part = parts[-1]
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if p2p_part.protocols()[0].code != multiaddr.protocols.P_P2P:
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raise InvalidAddrError()
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# make sure the /p2p value parses as a peer.ID
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peer_id_str = p2p_part.value_for_protocol(multiaddr.protocols.P_P2P)
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peer_id = id_b58_decode(peer_id_str)
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# we might have received just an / p2p part, which means there's no addr.
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if len(parts) > 1:
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addr = multiaddr.util.join(parts[:-1])
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peer_data = PeerData()
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peer_data.addrs = [addr]
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peer_data.protocols = [p.code for p in addr.protocols()]
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return PeerInfo(peer_id, peer_data)
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class InvalidAddrError(ValueError):
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pass
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