feat(python): 完成 Python 全量迁移——剩余平台、登录通道与公共层修复
- 新增 5sing/apple/xm/me/qt/lr 平台包与取流实现(含 xm-sign、MissEvan 签名、蜻蜓 HMAC、Apple developer token) - 新增 wy/kg/tx/lr 登录:扫码、手机号、账密(kg 20028 风控指纹)、cookie 绑定、kg/tx 续期 - request 层:保留多值 Set-Cookie;JSON body 紧凑化(修复 kg 网关验签);直连不经系统代理(对齐 Node) - 登录路由统一 Body(embed=True),修复扫码轮询 422;lifespan 接入登录续期调度 - ruff/format/pyright 全绿;14 平台真实联网与 HTTP 路由验证通过
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"""全局调用秘钥鉴权 —— AUTH_KEY 环境变量启用(未设置则完全不鉴权)。
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验证头统一为 X-Server-Key;全部路径(含文档页/健康检查/404)都要求秘钥,
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未授权请求一律 401,避免被扫描器区分出接口存在性(404/401 差异)。
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CORS 预检(OPTIONS)无响应体、不泄露内容,豁免。
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/stream/* 流代理例外:播放器/下载器直接 GET 媒体地址、无法携带自定义头,
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改用短时签名(?exp=&sig=,见 stream_sign.py)——不落裸秘钥到 URL/日志,
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签名泄露仅能在时效窗口内拉当条流;能带头的客户端仍可用 X-Server-Key。
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"""
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from __future__ import annotations
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import hmac
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from starlette.requests import Request
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from starlette.responses import JSONResponse
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from app.http.stream_sign import verify_stream_sign
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def _safe_equal(a: str, b: str) -> bool:
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return hmac.compare_digest(a.encode(), b.encode())
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async def auth_gate(request: Request, call_next):
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if request.method == "OPTIONS":
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return await call_next(request)
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auth_key = getattr(request.app.state, "auth_key", "") or ""
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if not auth_key: # 未配置秘钥:完全不鉴权
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return await call_next(request)
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pathname = request.url.path
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header = request.headers.get("x-server-key", "")
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if pathname.startswith("/stream/"):
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query = request.query_params
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ok = (header and _safe_equal(header, auth_key)) or (
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not header and verify_stream_sign(auth_key, pathname, query.get("exp"), query.get("sig"))
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)
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if ok:
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return await call_next(request)
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return JSONResponse(
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{"code": 401, "msg": "无效或缺少调用秘钥:X-Server-Key 头,或 /url 返回流地址自带的 exp/sig 签名"},
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status_code=401,
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)
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if not header or not _safe_equal(header, auth_key):
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# 统一 401 文案(不区分路径存在与否,防扫描探测)
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return JSONResponse(
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{"code": 401, "msg": "无效或缺少调用秘钥:请在 X-Server-Key 请求头携带"},
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status_code=401,
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)
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return await call_next(request)
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