176 lines
6.2 KiB
Python
176 lines
6.2 KiB
Python
"""
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Author: Uyanide pywang0608@foxmail.com
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Date: 2026-03-31 01:54:02
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Description: QQ Music fetcher via self-hosted API proxy
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"""
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"""
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Requires a running qq-music-api instance.
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The base URL is read from the QQ_MUSIC_API_URL environment variable.
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Search → pick best match by duration → fetch LRC lyrics.
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"""
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from typing import Optional
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import httpx
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from loguru import logger
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from .base import BaseFetcher
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from ..models import TrackMeta, LyricResult, CacheStatus
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from ..lrc import is_synced
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from ..config import (
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HTTP_TIMEOUT,
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TTL_NOT_FOUND,
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TTL_NETWORK_ERROR,
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DURATION_TOLERANCE_MS,
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QQ_MUSIC_API_URL,
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)
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class QQMusicFetcher(BaseFetcher):
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@property
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def source_name(self) -> str:
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return "qqmusic"
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def _search(self, track: TrackMeta, limit: int = 10) -> Optional[str]:
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"""Search QQ Music and return the best-matching song MID."""
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query = f"{track.artist or ''} {track.title or ''}".strip()
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if not query:
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return None
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logger.debug(f"QQMusic: searching for '{query}' (limit={limit})")
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try:
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with httpx.Client(timeout=HTTP_TIMEOUT) as client:
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resp = client.get(
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f"{QQ_MUSIC_API_URL}/api/search",
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params={"keyword": query, "type": "song", "num": limit},
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)
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resp.raise_for_status()
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data = resp.json()
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if data.get("code") != 0:
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logger.error(f"QQMusic: search API error: {data}")
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return None
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songs = data.get("data", {}).get("list", [])
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if not songs:
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logger.debug("QQMusic: search returned 0 results")
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return None
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logger.debug(f"QQMusic: search returned {len(songs)} candidates")
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# Duration-based best-match selection
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if track.length is not None:
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track_ms = track.length
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best_mid: Optional[str] = None
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best_diff = float("inf")
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for song in songs:
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if not isinstance(song, dict):
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continue
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mid = song.get("mid")
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name = song.get("name", "?")
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# interval is in seconds
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interval = song.get("interval")
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if not isinstance(interval, int):
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logger.debug(
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f" candidate {mid} '{name}': no duration, skipped"
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)
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continue
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duration_ms = interval * 1000
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diff = abs(duration_ms - track_ms)
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logger.debug(
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f" candidate {mid} '{name}': "
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f"duration={duration_ms}ms, diff={diff}ms"
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)
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if diff < best_diff:
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best_diff = diff
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best_mid = mid
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if best_mid is not None and best_diff <= DURATION_TOLERANCE_MS:
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logger.debug(
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f"QQMusic: selected mid={best_mid} (diff={best_diff}ms)"
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)
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return best_mid
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logger.debug(
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f"QQMusic: no candidate within {DURATION_TOLERANCE_MS}ms "
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f"(best diff={best_diff}ms)"
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)
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return None
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# No duration info — take the first result
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first = songs[0]
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if not isinstance(first, dict) or "mid" not in first:
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logger.error("QQMusic: first search result has no 'mid'")
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return None
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logger.debug(
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f"QQMusic: no duration available, using first result "
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f"mid={first['mid']} '{first.get('name', '?')}'"
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)
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return first["mid"]
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except Exception as e:
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logger.error(f"QQMusic: search failed: {e}")
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return None
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def _get_lyric(self, mid: str) -> Optional[LyricResult]:
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"""Fetch lyrics for a given QQ Music song MID."""
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logger.debug(f"QQMusic: fetching lyrics for mid={mid}")
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try:
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with httpx.Client(timeout=HTTP_TIMEOUT) as client:
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resp = client.get(
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f"{QQ_MUSIC_API_URL}/api/lyric",
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params={"mid": mid},
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)
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resp.raise_for_status()
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data = resp.json()
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if data.get("code") != 0:
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logger.error(f"QQMusic: lyric API error: {data}")
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return LyricResult(
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status=CacheStatus.NETWORK_ERROR, ttl=TTL_NETWORK_ERROR
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)
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lrc = data.get("data", {}).get("lyric", "")
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if not isinstance(lrc, str) or not lrc.strip():
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logger.debug(f"QQMusic: empty lyrics for mid={mid}")
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return LyricResult(status=CacheStatus.NOT_FOUND, ttl=TTL_NOT_FOUND)
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synced = is_synced(lrc)
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status = (
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CacheStatus.SUCCESS_SYNCED if synced else CacheStatus.SUCCESS_UNSYNCED
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)
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logger.info(
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f"QQMusic: got {status.value} lyrics for mid={mid} "
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f"({len(lrc.splitlines())} lines)"
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)
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return LyricResult(
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status=status, lyrics=lrc.strip(), source=self.source_name
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)
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except Exception as e:
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logger.error(f"QQMusic: lyric fetch failed for mid={mid}: {e}")
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return LyricResult(status=CacheStatus.NETWORK_ERROR, ttl=TTL_NETWORK_ERROR)
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def fetch(self, track: TrackMeta) -> Optional[LyricResult]:
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"""Search for the track and fetch its lyrics."""
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if not QQ_MUSIC_API_URL:
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logger.debug("QQMusic: skipped — QQ_MUSIC_API_URL not configured")
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return None
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query = f"{track.artist or ''} {track.title or ''}".strip()
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if not query:
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logger.debug("QQMusic: skipped — insufficient metadata")
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return None
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logger.info(f"QQMusic: fetching lyrics for {track.display_name()}")
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mid = self._search(track)
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if not mid:
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logger.debug(f"QQMusic: no match found for {track.display_name()}")
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return LyricResult(status=CacheStatus.NOT_FOUND, ttl=TTL_NOT_FOUND)
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return self._get_lyric(mid)
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