snowy-yang
dfc06bf4de
- 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
85 lines
3.8 KiB
Python
85 lines
3.8 KiB
Python
"""千千音乐 取流（对应 sdk/apis/bd.ts）。
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通道：`/v1/song/tracklink`（签名 GET）。档位：3000=flac / 320 / 128 / 64(aac)。
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实测（2026-10 匿名）：
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* 免费曲目（搜索 isVip=0）各档位均返回明文直链 `data.path`（audio0x.dmhmusic.com，CDN 签名 URL）；
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* VIP/版权曲目返回 200 / errno 22000 但 `data` 无 path、无 trail_audio_info，
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需登录态会员 cookie 才可能有直链 —— 这类曲目沿降级链走到底后如实报错，不造假数据。
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**签名串与实际 query 必须同源**：`sign_params` 一次产出签名与参数，query 由
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`URLSearchParams` 等价编码拼好后整串交给 `http_fetch`，不会再被二次序列化。
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"""
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from __future__ import annotations
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from typing import Any
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from app.sdk.platforms.bd.util import api_ok, error_text, first_non_empty, num_or_zero, track_link
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# 请求档位 → tracklink rate 尝试链（优先请求档，逐级降级；与上游 3000→320→128→64 的探测顺序一致）
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QUALITY_RATES: dict[str, list[str]] = {
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"64k": ["64"],
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"128k": ["128", "64"],
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"320k": ["320", "128", "64"],
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"flac": ["3000", "320", "128", "64"],
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"flac24bit": ["3000", "320", "128", "64"],
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}
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DEFAULT_RATES = ["3000", "320", "128", "64"]
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# 千千没有 flac24bit 对外档位（上游只到 3000 = flac）
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SUPPORT_QUALITYS: list[str] = ["64k", "128k", "320k", "flac"]
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def type_of_hit(request_rate: str, data: Any) -> str:
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"""命中档位判定：以响应 format/rate/bits 为准（可能低于请求档位）。"""
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source = data if isinstance(data, dict) else {}
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fmt = str(source.get("format") or "").lower()
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rate = num_or_zero(source.get("rate"))
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bits = num_or_zero(source.get("bits"))
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if fmt == "flac" or rate >= 1000:
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return "flac24bit" if bits == 24 else "flac"
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if rate >= 320 or request_rate == "320":
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return "320k"
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if rate >= 128 or request_rate == "128":
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return "128k"
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return "64k"
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async def get_download_url(tsid: str, type: str | None = None) -> dict[str, Any]:
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"""逐档请求 tracklink，取首个带 path 的档位。"""
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id = str(tsid if tsid is not None else "").strip()
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if not id:
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raise RuntimeError("千千歌曲 id（TSID）为空")
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rates = QUALITY_RATES.get(str(type if type is not None else ""), DEFAULT_RATES)
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last_err: Exception | None = None
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for rate in rates:
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try:
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body = await track_link(id, rate)
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if not api_ok(body):
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last_err = RuntimeError(error_text(body, "千千取流失败"))
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continue
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data = (body.get("data") if isinstance(body, dict) else None) or {}
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data = data if isinstance(data, dict) else {}
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trail = data.get("trail_audio_info")
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url = first_non_empty(data.get("path"), trail.get("path") if isinstance(trail, dict) else None)
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if url:
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return {"type": type_of_hit(rate, data), "url": url}
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last_err = RuntimeError("千千该歌曲无可用直链（VIP/版权曲目需登录态，免费曲目可直接取流）")
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except Exception as err: # noqa: BLE001 - 单档网络/上游失败沿降级链继续，与原实现一致
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last_err = err
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if last_err is not None:
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raise last_err
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raise RuntimeError("千千未找到可用音频直链")
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async def get_music_url(song_info: dict[str, Any], quality: str, retry_num: int = 0) -> dict[str, Any]:
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# 上游 GetDownloadURL：Song.URL 已有直链时直接复用（Parse 场景）
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if song_info.get("url"):
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return {"type": quality or "128k", "url": str(song_info["url"])}
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tsid = first_non_empty(song_info.get("songmid"), song_info.get("TSID"))
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if not tsid:
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raise RuntimeError("千千歌曲 id（TSID）为空")
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return await get_download_url(tsid, quality)
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