23 lines
608 B
Python
23 lines
608 B
Python
# -*- coding: utf-8 -*-
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"""OpenAPI 签名：空值不参与，字典序，MD5 小写。"""
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from __future__ import annotations
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import hashlib
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from typing import Any, Mapping
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def build_sign(params: Mapping[str, Any], secret_key: str) -> str:
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items = []
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for k in sorted(params.keys()):
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if k == "Sign":
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continue
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v = params[k]
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if v is None:
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continue
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s = str(v)
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if s == "":
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continue
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items.append(f"{k}={s}")
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raw = "&".join(items) + f"&SecretKey={secret_key}"
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return hashlib.md5(raw.encode("utf-8")).hexdigest()
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