67 lines
1.6 KiB
Python
67 lines
1.6 KiB
Python
import hashlib
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from typing import Union
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import base58
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import multihash
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class ID:
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_bytes: bytes
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_xor_id: int = None
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_b58_str: str = None
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def __init__(self, peer_id_bytes: bytes) -> None:
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self._bytes = peer_id_bytes
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@property
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def xor_id(self) -> int:
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if not self._xor_id:
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self._xor_id = int(digest(self._bytes).hex(), 16)
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return self._xor_id
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def to_bytes(self) -> bytes:
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return self._bytes
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def to_base58(self) -> str:
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if not self._b58_str:
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self._b58_str = base58.b58encode(self._bytes).decode()
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return self._b58_str
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def __bytes__(self) -> bytes:
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return self._bytes
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__repr__ = __str__ = pretty = to_string = to_base58
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def __eq__(self, other: object) -> bool:
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if isinstance(other, str):
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return self.to_base58() == other
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elif isinstance(other, bytes):
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return self._bytes == other
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elif isinstance(other, ID):
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return self._bytes == other._bytes
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else:
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return NotImplemented
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def __hash__(self) -> int:
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return hash(self._bytes)
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@classmethod
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def from_base58(cls, b58_encoded_peer_id_str: str) -> "ID":
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peer_id_bytes = base58.b58decode(b58_encoded_peer_id_str)
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pid = ID(peer_id_bytes)
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return pid
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@classmethod
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def from_pubkey(cls, key: bytes) -> "ID":
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algo = multihash.Func.sha2_256
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mh_digest = multihash.digest(key, algo)
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return cls(mh_digest.encode())
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def digest(data: Union[str, bytes]) -> bytes:
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if isinstance(data, str):
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data = data.encode("utf8")
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return hashlib.sha1(data).digest()
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