29 lines
1.0 KiB
Python
29 lines
1.0 KiB
Python
from __future__ import annotations
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from .common import base58check_verify, bech32_decode
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def validate_ltc_address(address: str) -> tuple[bool, str]:
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address = address.strip()
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if address.lower().startswith("ltc1"):
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hrp, data, spec = bech32_decode(address)
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if hrp is None:
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return False, "Invalid Bech32 or Bech32m checksum"
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if hrp != "ltc":
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return False, "Invalid HRP for LTC"
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if not data:
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return False, "Missing witness program"
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return True, f"Valid {spec} address"
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if not (address.startswith("L") or address.startswith("M") or address.startswith("3")):
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return False, "LTC Base58 addresses must start with L, M, or 3"
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valid, reason, version, payload_len = base58check_verify(address)
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if not valid:
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return False, reason
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if payload_len != 21:
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return False, "Unexpected Base58 payload length"
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if version not in (0x30, 0x32, 0x05):
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return False, "Invalid LTC version byte"
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return True, "Valid Base58Check address"
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