23 lines
663 B
Python
23 lines
663 B
Python
from onionrtypes import OnionAddressString
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from typing import Iterable
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from .extracted25519 import extract_ed25519_from_onion_address
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def identify_neighbors(
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address: OnionAddressString,
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peers: Iterable[OnionAddressString],
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closest_n: int) -> OnionAddressString:
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address = extract_ed25519_from_onion_address(address)
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address_int = int.from_bytes(address, "big")
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def _calc_closeness(y):
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return abs(address_int - int.from_bytes(y, "big"))
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peer_ed_keys = list(map(extract_ed25519_from_onion_address, peers))
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differences = list(map(_calc_closeness, peer_ed_keys))
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return sorted(differences)[:closest_n]
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