mirror of
https://github.com/n0stal6ic/unshackle-services.git
synced 2026-07-15 17:40:02 +02:00
588 lines
24 KiB
Python
588 lines
24 KiB
Python
from __future__ import annotations
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import re
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from http.cookiejar import CookieJar
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from typing import Any, Optional
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from urllib.parse import urlparse
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import click
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from unshackle.core.cdm.detect import is_widevine_cdm
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from unshackle.core.config import config
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from unshackle.core.credential import Credential
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from unshackle.core.music import MusicTrackOption
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from unshackle.core.service import Service
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from unshackle.core.titles import Music, Song, Titles_T
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from unshackle.core.tracks import Audio, Chapters, Tracks
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from unshackle.core.tracks.track import Track
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_INVISIBLE = re.compile(r"[--]")
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class SNDC(Service):
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"""
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Service code for SoundCloud (https://soundcloud.com).
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www.nostalgic.cc
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Authorization: Cookies, Credentials
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Security: None
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"""
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ALIASES = ("SNDC", "soundcloud", "sc")
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GROUP_AUDIO_DOWNLOADS = True
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TITLE_RE = r"^(?:https?://)?(?:www\.|m\.|on\.)?soundcloud\.com/[^\s?#]+"
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_PRESET_BITRATE = {
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"aac_hq": 256000, "aac_256k": 256000, "aac_160k": 160000, "aac_96k": 96000,
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"aac_1_0": 128000, "mp3_1_0": 128000, "mp3_0_0": 128000, "mp3_0_1": 64000,
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"opus_0_0": 72000,
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}
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@staticmethod
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@click.command(name="SNDC", short_help="https://soundcloud.com", help=__doc__)
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@click.argument("title", type=str)
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@click.option("-q", "--quality", "quality",
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type=click.Choice(["original", "aac", "opus", "mp3"], case_sensitive=False),
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default=None,
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help="original = Uploader's downloadable file (or best available); "
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"aac = Best AAC (256k on Go+); opus = Opus ~72k (the app's efficient "
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"stream); mp3 = 128k MP3. Default: original.")
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@click.pass_context
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def cli(ctx, **kwargs):
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return SNDC(ctx, **kwargs)
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def __init__(self, ctx, title: str, quality: Optional[str]):
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super().__init__(ctx)
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self.title = title
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self.quality_pref = (quality or self.config.get("default_quality", "original")).lower()
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self.client_id: Optional[str] = None
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self.oauth_token: Optional[str] = None
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self.cdm = getattr(ctx.obj, "cdm", None)
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def authenticate(self, cookies: Optional[CookieJar] = None, credential: Optional[Credential] = None) -> None:
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super().authenticate(cookies, credential)
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self.session.headers.update({
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"User-Agent": self.config["user_agent"],
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"Origin": self.config["web_url"],
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"Referer": self.config["web_url"] + "/",
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})
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self.client_id = self._extract_client_id() or (str(self.config.get("client_id") or "").strip() or None)
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if not self.client_id:
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self.log.error(" - Could not get a SoundCloud client_id."); raise SystemExit(1)
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token = None
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if credential:
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user = (credential.username or "").strip()
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pw = (credential.password or "").strip()
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if user.lower() in ("token", "oauth", "oauth_token") and pw:
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token = pw
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elif pw and not user:
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token = pw
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if not token and cookies:
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for cookie in cookies:
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if cookie.name == "oauth_token":
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token = cookie.value
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break
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if token:
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self.oauth_token = token if token.lower().startswith("oauth ") else token
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self.session.headers["Authorization"] = f"OAuth {token}"
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self.log.info(" + Authenticated with SoundCloud")
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else:
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self.log.warning(" - No oauth_token found. Go+ 256k AAC and original downloads "
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"unavailable. Using the best fallback stream.")
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def _resolve_short_link(self, url: str) -> str:
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try:
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host = urlparse(url if "://" in url else "https://" + url).netloc.lower()
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except Exception:
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return url
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if host == "on.soundcloud.com":
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try:
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r = self.session.head(url, allow_redirects=True, timeout=15)
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if r.url and "soundcloud.com" in r.url and "on.soundcloud.com" not in r.url:
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self.log.debug(f" + Resolved short link: {r.url}")
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return r.url
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except Exception as e:
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self.log.debug(f"Short link resolution failed: {e}")
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return url
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def _extract_client_id(self) -> Optional[str]:
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try:
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page = self.session.get(self.config["web_url"] + "/").text
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scripts = re.findall(r'<script[^>]+src="(https://[^"]+\.js)"', page)
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for src in reversed(scripts):
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try:
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js = self.session.get(src).text
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except Exception:
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continue
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m = re.search(r'client_id\s*[:=]\s*"([a-zA-Z0-9]{20,})"', js)
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if m:
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self.log.debug(f" + Extracted client_id from {src}")
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return m.group(1)
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except Exception as e:
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self.log.debug(f"client_id extraction failed: {e}")
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return None
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def _api(self, endpoint: str, params: Optional[dict] = None, allow_error: bool = False) -> Optional[Any]:
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url = endpoint if endpoint.startswith("http") else f"{self.config['base_url']}/{endpoint.lstrip('/')}"
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p = {"client_id": self.client_id}
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if params:
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p.update(params)
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resp = self.session.get(url, params=p)
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if resp.status_code != 200:
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if allow_error:
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return None
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self.log.error(f" - SoundCloud API error on {endpoint}: {resp.status_code} {resp.text[:200]}")
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raise SystemExit(1)
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return resp.json()
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def get_titles(self) -> Titles_T:
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obj = self._api("resolve", params={"url": self._resolve_short_link(self.title)})
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kind = obj.get("kind")
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if kind == "track":
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song = self._build_song(obj, total_tracks=1)
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return Music([song], kind="single",
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title=song.album, artist=song.artist, year=song.year,
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total_tracks=1, artwork_url=song.artwork_url)
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if kind == "playlist":
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return self._build_playlist(obj)
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self.log.error(f" - Unsupported SoundCloud URL: {kind!r}.")
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raise SystemExit(1)
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def _build_playlist(self, playlist: dict) -> Music:
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items = playlist.get("tracks", [])
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full: dict[int, dict] = {}
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need_ids = [t["id"] for t in items if isinstance(t, dict) and "media" not in t and t.get("id")]
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for t in items:
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if isinstance(t, dict) and t.get("media"):
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full[t["id"]] = t
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for i in range(0, len(need_ids), 50):
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batch = need_ids[i:i + 50]
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fetched = self._api("tracks", params={"ids": ",".join(map(str, batch))}, allow_error=True) or []
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for ft in fetched:
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if ft.get("id"):
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full[ft["id"]] = ft
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album_title = self._clean(playlist.get("title")) or "Unknown Album"
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is_album = bool(playlist.get("is_album"))
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total = playlist.get("track_count") or len([t for t in items if full.get(t.get("id") if isinstance(t, dict) else t)])
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songs = []
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position = 0
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for entry in items:
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tid = entry.get("id") if isinstance(entry, dict) else entry
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track = full.get(tid)
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if not track:
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continue
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position += 1
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songs.append(self._build_song(track, album_ctx=album_title, position=position, total_tracks=total))
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if not songs:
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self.log.error(" - No playable tracks found in playlist."); raise SystemExit(1)
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return Music(
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songs,
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kind="album" if is_album else "playlist",
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title=album_title,
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artist=self._clean((playlist.get("user") or {}).get("username")),
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year=self._year(playlist),
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total_tracks=len(songs),
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artwork_url=self._cover(playlist.get("artwork_url") or songs[0].artwork_url),
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)
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def _build_song(self, track: dict, album_ctx: Optional[str] = None, position: Optional[int] = None,
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total_tracks: Optional[int] = None) -> Song:
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pm = track.get("publisher_metadata") or {}
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user = track.get("user") or {}
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title = self._clean(track.get("title")) or "Unknown"
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policy = str(track.get("policy") or "").upper()
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if policy == "SNIP":
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self.log.warning(f" - '{title}' is a paid track. Only a 30s preview available.")
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elif policy == "BLOCK":
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self.log.warning(f" - '{title}' is region-blocked.")
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artist = self._clean(pm.get("artist")) or self._clean(user.get("username")) or "Unknown Artist"
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album = self._clean(album_ctx) or self._clean(pm.get("album_title")) or title
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year = self._year(track) or 1
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artwork = self._cover(track.get("artwork_url") or user.get("avatar_url"))
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genre = self._clean(track.get("genre")) or None
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isrc = pm.get("isrc") or None
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label = self._clean(track.get("label_name")) or None
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release_date = self._release_date(track)
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data = {
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"service": self.ALIASES[0],
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"source": self.ALIASES[0],
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"track_id": str(track.get("id")),
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"track_url": track.get("permalink_url"),
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"title": title,
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"artist": artist,
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"performer": artist,
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"album": album,
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"album_artist": artist,
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"track_number": position or 1,
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"total_tracks": total_tracks,
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"disc_number": 1,
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"genre": genre,
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"isrc": isrc,
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"label": label,
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"release_date": release_date,
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"year": year,
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"copyright": self._clean(pm.get("c_line")) or None,
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"artwork_url": artwork,
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"duration": round((track.get("duration") or 0) / 1000) or None,
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"channels": 2,
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"downloadable": bool(track.get("downloadable")),
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"has_downloads_left": bool(track.get("has_downloads_left")),
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"original_format": track.get("original_format"),
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"track_authorization": track.get("track_authorization"),
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"transcodings": (track.get("media") or {}).get("transcodings", []),
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}
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if config.tag:
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data["comment"] = config.tag
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data["quality"] = self._quality_label(data)
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return Song(
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id_=str(track.get("id")),
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service=self.__class__,
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name=title,
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artist=artist,
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album=album,
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track=int(position or 1),
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disc=1,
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year=int(year),
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album_artist=artist,
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release_type="single" if not album_ctx else "album",
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total_tracks=total_tracks if total_tracks else None,
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genre=genre,
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isrc=isrc if isinstance(isrc, str) else None,
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label=label,
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artwork_url=artwork,
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data=data,
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)
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def get_music_track_options(self, song: Song) -> list[MusicTrackOption]:
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data = song.data if isinstance(song.data, dict) else {}
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use_original = self._will_use_original(data)
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if use_original:
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fmt = (data.get("original_format") or "flac").lower()
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codec = {"flac": "FLAC", "wav": "WAV", "aiff": "AIFF", "aif": "AIFF", "mp3": "MP3", "m4a": "AAC"}.get(fmt, fmt.upper())
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return [MusicTrackOption(codec=codec, channels=2.0, lossless=codec in ("FLAC", "WAV", "AIFF"),
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duration=data.get("duration"), quality_label=self._quality_label(data))]
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transcoding, _is_drm = self._pick_stream(data)
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tc = self._tc_codec(transcoding) if transcoding else "aac"
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codec = {"mp3": "MP3", "opus": "OPUS", "aac": "AAC"}.get(tc, "AAC")
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bitrate = self._tc_bitrate(transcoding) if transcoding else None
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return [MusicTrackOption(codec=codec, bitrate=bitrate, channels=2.0,
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lossless=False, duration=data.get("duration"),
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quality_label=self._quality_label(data))]
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def get_tracks(self, title: Song) -> Tracks:
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data = title.data if isinstance(title.data, dict) else {}
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track_id = str(title.id)
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if self._will_use_original(data):
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url, ext = self._original_download(track_id, data)
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if url:
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codec = Audio.Codec.FLAC if ext == "flac" else None
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audio = Audio(
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url, language=title.language or "en", codec=codec, channels=2,
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descriptor=Track.Descriptor.URL, id_=track_id, data={"ext": ext},
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)
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return Tracks([audio])
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self.log.warning(" - Original download unavailable; falling back to stream.")
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transcoding, is_drm = self._pick_stream(data)
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if is_drm:
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drm_audio = self._drm_track(title, track_id, transcoding, data)
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if drm_audio is not None:
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return Tracks([drm_audio])
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self.log.warning(" - DRM stream resolution failed; falling back to a non-DRM stream.")
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transcoding = self._best_stream_transcoding(data)
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if not transcoding:
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self.log.error(f" - No usable stream for track {track_id}."); raise SystemExit(1)
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stream_url = self._resolve_stream(transcoding, data.get("track_authorization"))
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tc = self._tc_codec(transcoding)
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is_progressive = self._tc_progressive(transcoding)
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codec = {"aac": Audio.Codec.AAC, "opus": Audio.Codec.OPUS}.get(tc)
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ext = {"aac": "m4a", "mp3": "mp3", "opus": "opus"}.get(tc, "m4a")
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self.log.debug(
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f" + Stream: preset={transcoding.get('preset')} quality={transcoding.get('quality')} "
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f"protocol={'progressive' if is_progressive else 'hls'} codec={tc}"
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)
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audio = Audio(
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stream_url, language=title.language or "en",
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codec=codec,
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bitrate=self._tc_bitrate(transcoding), channels=2,
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descriptor=Track.Descriptor.URL if is_progressive else Track.Descriptor.HLS,
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id_=track_id,
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data={"ext": ext},
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)
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return Tracks([audio])
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def get_chapters(self, title: Song) -> Chapters:
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return Chapters()
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def _will_use_original(self, data: dict) -> bool:
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return (self.quality_pref == "original"
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and bool(data.get("downloadable")) and bool(data.get("has_downloads_left")))
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def _stream_transcodings(self, data: dict) -> list[dict]:
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out = []
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for t in (data.get("transcodings") or []):
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if not isinstance(t, dict) or not t.get("url") or not t.get("preset"):
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continue
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if str(t.get("preset")).lower().startswith("abr_"):
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continue
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if "encrypted" in str((t.get("format") or {}).get("protocol") or "").lower():
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continue
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out.append(t)
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return out
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@staticmethod
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def _tc_codec(t: dict) -> str:
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preset = str(t.get("preset") or "").lower()
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mime = str((t.get("format") or {}).get("mime_type") or "").lower()
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if "aac" in preset or "mp4a" in mime:
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return "aac"
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if "opus" in preset or "opus" in mime:
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return "opus"
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if "mp3" in preset or "mpeg" in mime:
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return "mp3"
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return "other"
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@staticmethod
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def _tc_progressive(t: dict) -> bool:
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return str((t.get("format") or {}).get("protocol") or "").lower() == "progressive"
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def _tc_bitrate(self, t: dict) -> int:
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preset = str(t.get("preset") or "").lower()
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m = re.search(r"(\d+)k", preset)
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if m:
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return int(m.group(1)) * 1000
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if preset in self._PRESET_BITRATE:
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return self._PRESET_BITRATE[preset]
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quality = str(t.get("quality") or "").lower()
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codec = self._tc_codec(t)
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if codec == "aac":
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return 256000 if quality == "hq" else 128000
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if codec == "mp3":
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return 128000
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if codec == "opus":
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return 72000
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return 128000 if quality == "hq" else 96000
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def _best_stream_transcoding(self, data: dict) -> Optional[dict]:
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candidates = self._stream_transcodings(data)
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if not candidates:
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return None
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priority = {
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"mp3": {"mp3": 3, "aac": 2, "opus": 1},
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"opus": {"opus": 3, "aac": 2, "mp3": 1},
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}.get(self.quality_pref, {"aac": 3, "opus": 2, "mp3": 1})
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def codec_pref(t: dict) -> int:
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return priority.get(self._tc_codec(t), 0)
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def rank(t: dict) -> tuple:
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quality = str(t.get("quality") or "").lower()
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return (
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0 if t.get("snipped") else 1,
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codec_pref(t),
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1 if quality == "hq" else 0,
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1 if self._tc_progressive(t) else 0,
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0 if t.get("is_legacy_transcoding") else 1,
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self._tc_bitrate(t),
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)
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return max(candidates, key=rank)
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def _resolve_stream(self, transcoding: dict, track_authorization: Optional[str]) -> str:
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params = {}
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if track_authorization:
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params["track_authorization"] = track_authorization
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res = self._api(transcoding["url"], params=params)
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url = res.get("url")
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if not url:
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self.log.error(f" - No stream URL returned: {res}"); raise SystemExit(1)
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return url
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def _encrypted_transcoding(self, data: dict) -> Optional[dict]:
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candidates = []
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for t in (data.get("transcodings") or []):
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if not isinstance(t, dict) or not t.get("url") or not t.get("preset"):
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continue
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if str(t.get("preset")).lower().startswith("abr_"):
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continue
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proto = str((t.get("format") or {}).get("protocol") or "").lower()
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if "encrypted" not in proto:
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continue
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candidates.append(t)
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if not candidates:
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return None
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def rank(t: dict) -> tuple:
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proto = str((t.get("format") or {}).get("protocol") or "").lower()
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return (
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1 if proto.startswith("ctr") else 0,
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1 if self._tc_codec(t) == "aac" else 0,
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self._tc_bitrate(t),
|
||
)
|
||
|
||
return max(candidates, key=rank)
|
||
|
||
def _pick_stream(self, data: dict) -> tuple[Optional[dict], bool]:
|
||
non_drm = self._best_stream_transcoding(data)
|
||
enc = self._encrypted_transcoding(data) if is_widevine_cdm(self.cdm) else None
|
||
if enc is not None:
|
||
if self.quality_pref in ("original", "aac"):
|
||
if non_drm is None or self._tc_bitrate(enc) > self._tc_bitrate(non_drm):
|
||
return enc, True
|
||
elif non_drm is None:
|
||
return enc, True
|
||
return non_drm, False
|
||
|
||
def _resolve_encrypted_stream(self, transcoding: dict, track_authorization: Optional[str]) -> tuple[Optional[str], Optional[str]]:
|
||
params = {}
|
||
if track_authorization:
|
||
params["track_authorization"] = track_authorization
|
||
res = self._api(transcoding["url"], params=params, allow_error=True) or {}
|
||
url = res.get("url")
|
||
token = res.get("licenseAuthToken")
|
||
if not url:
|
||
self.log.warning(f" - No encrypted stream URL returned: {res}")
|
||
return None, None
|
||
return url, token
|
||
|
||
def _drm_track(self, title: Song, track_id: str, transcoding: dict, data: dict) -> Optional[Audio]:
|
||
url, token = self._resolve_encrypted_stream(transcoding, data.get("track_authorization"))
|
||
if not url or not token:
|
||
if url and not token:
|
||
self.log.warning(" - Encrypted stream returned no license token.")
|
||
return None
|
||
kbps = self._tc_bitrate(transcoding) // 1000
|
||
self.log.info(f" + Using DRM stream: AAC {kbps} kb/s. Needs a CDM to decrypt.")
|
||
return Audio(
|
||
url,
|
||
language=title.language or "en",
|
||
codec=Audio.Codec.AAC,
|
||
bitrate=self._tc_bitrate(transcoding),
|
||
channels=2,
|
||
descriptor=Track.Descriptor.HLS,
|
||
id_=track_id,
|
||
data={"ext": "m4a", "license_token": token},
|
||
)
|
||
|
||
def _license_post(self, kind: str, challenge: bytes, track: Any) -> Optional[bytes]:
|
||
tdata = getattr(track, "data", None)
|
||
token = tdata.get("license_token") if isinstance(tdata, dict) else None
|
||
if not token:
|
||
self.log.error(" - No license token available for the DRM request.")
|
||
return None
|
||
host = str(self.config.get("drm_license_host") or "").rstrip("/")
|
||
if not host:
|
||
self.log.error(" - No drm_license_host configured."); return None
|
||
try:
|
||
resp = self.session.post(
|
||
f"{host}/playback/{kind}",
|
||
params={"license_token": token},
|
||
data=bytes(challenge),
|
||
headers={"Content-Type": "application/octet-stream", "Accept": "*/*"},
|
||
)
|
||
except Exception as e:
|
||
self.log.error(f" - DRM {kind} request failed: {e}")
|
||
return None
|
||
if resp.status_code != 200:
|
||
self.log.error(f" - DRM {kind} request rejected: {resp.status_code} {resp.text[:200]}")
|
||
return None
|
||
return resp.content
|
||
|
||
def get_widevine_service_certificate(self, *, challenge: bytes, title: Any = None,
|
||
track: Any = None, **_: Any) -> Optional[bytes]:
|
||
return self._license_post("widevine", challenge, track) or None
|
||
|
||
def get_widevine_license(self, *, challenge: bytes, title: Any = None,
|
||
track: Any = None, **_: Any) -> Optional[bytes]:
|
||
return self._license_post("widevine", challenge, track)
|
||
|
||
def _original_download(self, track_id: str, data: dict) -> tuple[Optional[str], str]:
|
||
res = self._api(f"tracks/{track_id}/download",
|
||
params={"app_version": self.config.get("app_version"), "app_locale": "en"},
|
||
allow_error=True)
|
||
redirect = (res or {}).get("redirectUri")
|
||
if not redirect:
|
||
return None, "flac"
|
||
ext = (data.get("original_format") or "").lower().replace("aif", "aiff")
|
||
if not ext:
|
||
try:
|
||
head = self.session.head(redirect, allow_redirects=True, timeout=15)
|
||
cd = head.headers.get("Content-Disposition", "")
|
||
m = re.search(r'filename="?[^"]+\.([A-Za-z0-9]+)"?', cd)
|
||
if m:
|
||
ext = m.group(1).lower()
|
||
except Exception:
|
||
pass
|
||
return redirect, (ext or "flac")
|
||
|
||
def on_track_downloaded(self, track: Any) -> None:
|
||
try:
|
||
path = getattr(track, "path", None)
|
||
tdata = getattr(track, "data", None)
|
||
if not path or not path.exists() or not isinstance(tdata, dict):
|
||
return
|
||
ext = tdata.get("ext")
|
||
if not ext or path.suffix.lower() == f".{ext}":
|
||
return
|
||
new_path = path.with_suffix(f".{ext}")
|
||
if new_path.exists():
|
||
new_path.unlink()
|
||
path.rename(new_path)
|
||
track.path = new_path
|
||
except Exception as e:
|
||
self.log.debug(f"Extension rename skipped: {e}")
|
||
|
||
@staticmethod
|
||
def _clean(value: Any) -> str:
|
||
if not value:
|
||
return ""
|
||
return _INVISIBLE.sub("", str(value)).strip()
|
||
|
||
@staticmethod
|
||
def _year(obj: dict) -> int:
|
||
for key in ("release_date", "display_date", "created_at"):
|
||
value = obj.get(key)
|
||
if value:
|
||
m = re.match(r"(\d{4})", str(value))
|
||
if m and int(m.group(1)) > 0:
|
||
return int(m.group(1))
|
||
return 0
|
||
|
||
@staticmethod
|
||
def _release_date(obj: dict) -> Optional[str]:
|
||
for key in ("release_date", "display_date", "created_at"):
|
||
value = obj.get(key)
|
||
if value and re.match(r"\d{4}-\d{2}-\d{2}", str(value)):
|
||
return str(value)[:10]
|
||
return None
|
||
|
||
@staticmethod
|
||
def _cover(url: Optional[str]) -> Optional[str]:
|
||
if not url:
|
||
return None
|
||
return re.sub(r"-(large|t\d+x\d+|small|badge|tiny|mini|original)\.(jpg|png)", r"-original.\2", url)
|
||
|
||
def _quality_label(self, data: dict) -> str:
|
||
if self._will_use_original(data):
|
||
return f"Original {(data.get('original_format') or 'FLAC').upper()}"
|
||
transcoding, _is_drm = self._pick_stream(data)
|
||
if not transcoding:
|
||
return ""
|
||
codec = self._tc_codec(transcoding)
|
||
kbps = self._tc_bitrate(transcoding) // 1000
|
||
if codec == "mp3":
|
||
return f"MP3 {kbps} kb/s"
|
||
if codec == "opus":
|
||
return f"Opus {kbps} kb/s"
|
||
return f"AAC {kbps} kb/s"
|