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18 lines
388 B
Python
18 lines
388 B
Python
"""
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下载应用服务共享的输入校验。
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"""
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from __future__ import annotations
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import re
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_TORRENT_HASH_PATTERN = re.compile(r"^[0-9a-fA-F]{40}$")
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def validate_torrent_hash(hash_value: str) -> None:
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"""
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校验 BitTorrent v1 Hash，拒绝模糊任务定位。
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"""
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if not _TORRENT_HASH_PATTERN.fullmatch(hash_value):
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raise ValueError("hash 格式无效")
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