678 lines
31 KiB
Python
678 lines
31 KiB
Python
import re
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from pathlib import Path
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from typing import List, Optional, Tuple, Set, Dict, Union
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from sqlalchemy.orm import Session
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from app.chain import ChainBase
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from app.core.config import settings
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from app.core.context import MediaInfo, TorrentInfo, Context
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from app.core.meta import MetaBase
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from app.db.downloadhistory_oper import DownloadHistoryOper
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from app.db.mediaserver_oper import MediaServerOper
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from app.helper.torrent import TorrentHelper
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from app.log import logger
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from app.schemas import ExistMediaInfo, NotExistMediaInfo, DownloadingTorrent, Notification
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from app.schemas.types import MediaType, TorrentStatus, EventType, MessageChannel, NotificationType
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from app.utils.string import StringUtils
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class DownloadChain(ChainBase):
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"""
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下载处理链
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"""
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def __init__(self, db: Session = None):
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super().__init__(db)
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self.torrent = TorrentHelper()
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self.downloadhis = DownloadHistoryOper(self._db)
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self.mediaserver = MediaServerOper(self._db)
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def post_download_message(self, meta: MetaBase, mediainfo: MediaInfo, torrent: TorrentInfo,
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channel: MessageChannel = None,
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userid: str = None):
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"""
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发送添加下载的消息
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"""
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msg_text = ""
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if torrent.site_name:
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msg_text = f"站点：{torrent.site_name}"
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if meta.resource_term:
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msg_text = f"{msg_text}\n质量：{meta.resource_term}"
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if torrent.size:
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if str(torrent.size).replace(".", "").isdigit():
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size = StringUtils.str_filesize(torrent.size)
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else:
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size = torrent.size
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msg_text = f"{msg_text}\n大小：{size}"
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if torrent.title:
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msg_text = f"{msg_text}\n种子：{torrent.title}"
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if torrent.seeders:
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msg_text = f"{msg_text}\n做种数：{torrent.seeders}"
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msg_text = f"{msg_text}\n促销：{torrent.volume_factor}"
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if torrent.hit_and_run:
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msg_text = f"{msg_text}\nHit&Run：是"
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if torrent.description:
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html_re = re.compile(r'<[^>]+>', re.S)
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description = html_re.sub('', torrent.description)
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torrent.description = re.sub(r'<[^>]+>', '', description)
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msg_text = f"{msg_text}\n描述：{torrent.description}"
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self.post_message(Notification(
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channel=channel,
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mtype=NotificationType.Download,
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title=f"{mediainfo.title_year} "
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f"{meta.season_episode} 开始下载",
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text=msg_text,
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image=mediainfo.get_message_image(),
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userid=userid))
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def download_torrent(self, torrent: TorrentInfo,
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channel: MessageChannel = None,
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userid: Union[str, int] = None) -> Tuple[Optional[Path], str, list]:
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"""
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下载种子文件
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:return: 种子路径，种子目录名，种子文件清单
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"""
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torrent_file, _, download_folder, files, error_msg = self.torrent.download_torrent(
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url=torrent.enclosure,
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cookie=torrent.site_cookie,
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ua=torrent.site_ua,
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proxy=torrent.site_proxy)
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if not torrent_file:
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logger.error(f"下载种子文件失败：{torrent.title} - {torrent.enclosure}")
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self.post_message(Notification(
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channel=channel,
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mtype=NotificationType.Manual,
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title=f"{torrent.title} 种子下载失败！",
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text=f"错误信息：{error_msg}\n种子链接：{torrent.enclosure}",
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userid=userid))
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return None, "", []
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return torrent_file, download_folder, files
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def download_single(self, context: Context, torrent_file: Path = None,
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episodes: Set[int] = None,
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channel: MessageChannel = None,
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save_path: str = None,
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userid: Union[str, int] = None) -> Optional[str]:
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"""
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下载及发送通知
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"""
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_torrent = context.torrent_info
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_media = context.media_info
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_meta = context.meta_info
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_folder_name = ""
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if not torrent_file:
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# 下载种子文件
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torrent_file, _folder_name, _ = self.download_torrent(_torrent, userid=userid)
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if not torrent_file:
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return
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# 下载目录
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if not save_path:
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if settings.DOWNLOAD_CATEGORY and _media and _media.category:
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# 开启下载二级目录
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if _media.type == MediaType.MOVIE:
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# 电影
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download_dir = Path(settings.DOWNLOAD_MOVIE_PATH or settings.DOWNLOAD_PATH) / _media.category
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else:
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if settings.DOWNLOAD_ANIME_PATH \
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and _media.genre_ids \
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and set(_media.genre_ids).intersection(set(settings.ANIME_GENREIDS)):
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# 动漫
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download_dir = Path(settings.DOWNLOAD_ANIME_PATH)
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else:
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# 电视剧
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download_dir = Path(settings.DOWNLOAD_TV_PATH or settings.DOWNLOAD_PATH) / _media.category
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elif _media:
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# 未开启下载二级目录
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if _media.type == MediaType.MOVIE:
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# 电影
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download_dir = Path(settings.DOWNLOAD_MOVIE_PATH or settings.DOWNLOAD_PATH)
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else:
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if settings.DOWNLOAD_ANIME_PATH \
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and _media.genre_ids \
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and set(_media.genre_ids).intersection(set(settings.ANIME_GENREIDS)):
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# 动漫
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download_dir = Path(settings.DOWNLOAD_ANIME_PATH)
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else:
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# 电视剧
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download_dir = Path(settings.DOWNLOAD_TV_PATH or settings.DOWNLOAD_PATH)
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else:
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# 未识别
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download_dir = Path(settings.DOWNLOAD_PATH)
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else:
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# 自定义下载目录
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download_dir = Path(save_path)
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# 添加下载
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result: Optional[tuple] = self.download(torrent_path=torrent_file,
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cookie=_torrent.site_cookie,
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episodes=episodes,
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download_dir=download_dir)
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if result:
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_hash, error_msg = result
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else:
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_hash, error_msg = None, "未知错误"
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if _hash:
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# 登记下载记录
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self.downloadhis.add(
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path=_folder_name or _torrent.title,
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type=_media.type.value,
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title=_media.title,
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year=_media.year,
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tmdbid=_media.tmdb_id,
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imdbid=_media.imdb_id,
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tvdbid=_media.tvdb_id,
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doubanid=_media.douban_id,
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seasons=_meta.season,
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episodes=_meta.episode,
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image=_media.get_backdrop_image(),
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download_hash=_hash,
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torrent_name=_torrent.title,
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torrent_description=_torrent.description,
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torrent_site=_torrent.site_name
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)
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# 发送消息
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self.post_download_message(meta=_meta, mediainfo=_media, torrent=_torrent, channel=channel)
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# 下载成功后处理
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self.download_added(context=context, torrent_path=torrent_file, download_dir=download_dir)
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# 广播事件
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self.eventmanager.send_event(EventType.DownloadAdded, {
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"hash": _hash,
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"torrent_file": torrent_file,
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"context": context
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})
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else:
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# 下载失败
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logger.error(f"{_media.title_year} 添加下载任务失败："
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f"{_torrent.title} - {_torrent.enclosure}，{error_msg}")
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self.post_message(Notification(
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channel=channel,
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mtype=NotificationType.Manual,
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title="添加下载任务失败：%s %s"
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% (_media.title_year, _meta.season_episode),
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text=f"站点：{_torrent.site_name}\n"
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f"种子名称：{_meta.org_string}\n"
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f"种子链接：{_torrent.enclosure}\n"
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f"错误信息：{error_msg}",
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image=_media.get_message_image(),
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userid=userid))
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return _hash
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def batch_download(self,
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contexts: List[Context],
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no_exists: Dict[int, Dict[int, NotExistMediaInfo]] = None,
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save_path: str = None,
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userid: str = None) -> Tuple[List[Context], Dict[int, Dict[int, NotExistMediaInfo]]]:
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"""
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根据缺失数据，自动种子列表中组合择优下载
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:param contexts: 资源上下文列表
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:param no_exists: 缺失的剧集信息
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:param save_path: 保存路径
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:param userid: 用户ID
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:return: 已经下载的资源列表、剩余未下载到的剧集 no_exists[tmdb_id] = {season: NotExistMediaInfo}
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"""
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# 已下载的项目
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downloaded_list: List[Context] = []
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def __update_seasons(_tmdbid: int, _need: list, _current: list) -> list:
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"""
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更新need_tvs季数，返回剩余季数
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:param _tmdbid: TMDBID
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:param _need: 需要下载的季数
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:param _current: 已经下载的季数
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"""
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# 剩余季数
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need = list(set(_need).difference(set(_current)))
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# 清除已下载的季信息
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for _sea in list(no_exists.get(_tmdbid)):
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if _sea not in need:
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no_exists[_tmdbid].pop(_sea)
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if not no_exists.get(_tmdbid) and no_exists.get(_tmdbid) is not None:
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no_exists.pop(_tmdbid)
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return need
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def __update_episodes(_tmdbid: int, _sea: int, _need: list, _current: set) -> list:
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"""
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更新need_tvs集数，返回剩余集数
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:param _tmdbid: TMDBID
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:param _sea: 季数
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:param _need: 需要下载的集数
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:param _current: 已经下载的集数
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"""
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# 剩余集数
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need = list(set(_need).difference(set(_current)))
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if need:
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not_exist = no_exists[_tmdbid][_sea]
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no_exists[_tmdbid][_sea] = NotExistMediaInfo(
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season=not_exist.season,
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episodes=need,
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total_episode=not_exist.total_episode,
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start_episode=not_exist.start_episode
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)
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else:
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no_exists[_tmdbid].pop(_sea)
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if not no_exists.get(_tmdbid) and no_exists.get(_tmdbid) is not None:
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no_exists.pop(_tmdbid)
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return need
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def __get_season_episodes(tmdbid: int, season: int) -> int:
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"""
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获取需要的季的集数
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"""
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if not no_exists.get(tmdbid):
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return 9999
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no_exist = no_exists.get(tmdbid)
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if not no_exist.get(season):
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return 9999
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return no_exist[season].total_episode
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# 分组排序
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contexts = TorrentHelper().sort_group_torrents(contexts)
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# 如果是电影，直接下载
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for context in contexts:
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if context.media_info.type == MediaType.MOVIE:
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if self.download_single(context, save_path=save_path, userid=userid):
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# 下载成功
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downloaded_list.append(context)
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# 电视剧整季匹配
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if no_exists:
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# 先把整季缺失的拿出来，看是否刚好有所有季都满足的种子 {tmdbid: [seasons]}
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need_seasons: Dict[int, list] = {}
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for need_tmdbid, need_tv in no_exists.items():
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for tv in need_tv.values():
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if not tv:
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continue
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# 季列表为空的，代表全季缺失
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if not tv.episodes:
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if not need_seasons.get(need_tmdbid):
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need_seasons[need_tmdbid] = []
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need_seasons[need_tmdbid].append(tv.season or 1)
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# 查找整季包含的种子，只处理整季没集的种子或者是集数超过季的种子
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for need_tmdbid, need_season in need_seasons.items():
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# 循环种子
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for context in contexts:
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# 媒体信息
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media = context.media_info
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# 识别元数据
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meta = context.meta_info
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# 种子信息
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torrent = context.torrent_info
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# 排除电视剧
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if media.type != MediaType.TV:
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continue
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# 种子的季清单
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torrent_season = meta.season_list
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# 种子有集的不要
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if meta.episode_list:
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continue
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# 匹配TMDBID
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if need_tmdbid == media.tmdb_id:
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# 种子季是需要季或者子集
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if set(torrent_season).issubset(set(need_season)):
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if len(torrent_season) == 1:
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# 只有一季的可能是命名错误，需要打开种子鉴别，只有实际集数大于等于总集数才下载
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torrent_path, _, torrent_files = self.download_torrent(torrent)
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if not torrent_path:
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continue
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torrent_episodes = self.torrent.get_torrent_episodes(torrent_files)
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if torrent_episodes:
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# 总集数
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need_total = __get_season_episodes(need_tmdbid, torrent_season[0])
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if len(torrent_episodes) < need_total:
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# 更新集数范围
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begin_ep = min(torrent_episodes)
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end_ep = max(torrent_episodes)
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meta.set_episodes(begin=begin_ep, end=end_ep)
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logger.info(
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f"{meta.org_string} 解析文件集数为 [{begin_ep}-{end_ep}]，不是完整合集")
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continue
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else:
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# 下载
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download_id = self.download_single(context=context,
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torrent_file=torrent_path,
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save_path=save_path,
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userid=userid)
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else:
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logger.info(
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f"{meta.org_string} 解析文件集数为 {len(torrent_episodes)}，不是完整合集")
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continue
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else:
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# 下载
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download_id = self.download_single(context, save_path=save_path, userid=userid)
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if download_id:
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# 下载成功
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downloaded_list.append(context)
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# 更新仍需季集
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need_season = __update_seasons(_tmdbid=need_tmdbid,
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_need=need_season,
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_current=torrent_season)
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# 电视剧季内的集匹配
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if no_exists:
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# TMDBID列表
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need_tv_list = list(no_exists)
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for need_tmdbid in need_tv_list:
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# dict[season, [NotExistMediaInfo]]
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need_tv = no_exists.get(need_tmdbid)
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if not need_tv:
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continue
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# 循环每一季
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for sea, tv in need_tv.items():
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# 当前需要季
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need_season = sea
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# 当前需要集
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need_episodes = tv.episodes
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# TMDB总集数
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total_episode = tv.total_episode
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# 需要开始集
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start_episode = tv.start_episode or 1
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# 缺失整季的转化为缺失集进行比较
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if not need_episodes:
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need_episodes = list(range(start_episode, total_episode))
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# 循环种子
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for context in contexts:
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# 媒体信息
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media = context.media_info
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# 识别元数据
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meta = context.meta_info
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# 非剧集不处理
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if media.type != MediaType.TV:
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continue
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# 匹配TMDB
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if media.tmdb_id == need_tmdbid:
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# 不重复添加
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if context in downloaded_list:
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continue
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# 种子季
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torrent_season = meta.season_list
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# 只处理单季含集的种子
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if len(torrent_season) != 1 or torrent_season[0] != need_season:
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continue
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# 种子集列表
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torrent_episodes = set(meta.episode_list)
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# 整季的不处理
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if not torrent_episodes:
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continue
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# 为需要集的子集则下载
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if torrent_episodes.issubset(set(need_episodes)):
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# 下载
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download_id = self.download_single(context, save_path=save_path, userid=userid)
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if download_id:
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# 下载成功
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downloaded_list.append(context)
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# 更新仍需集数
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need_episodes = __update_episodes(_tmdbid=need_tmdbid,
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_need=need_episodes,
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_sea=need_season,
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_current=torrent_episodes)
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# 仍然缺失的剧集，从整季中选择需要的集数文件下载，仅支持QB和TR
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if no_exists:
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# TMDBID列表
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no_exists_list = list(no_exists)
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for need_tmdbid in no_exists_list:
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# dict[season, [NotExistMediaInfo]]
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need_tv = no_exists.get(need_tmdbid)
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if not need_tv:
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continue
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# 需要季列表
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need_tv_list = list(need_tv)
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# 循环需要季
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for sea in need_tv_list:
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# NotExistMediaInfo
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tv = need_tv.get(sea)
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# 当前需要季
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need_season = sea
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# 当前需要集
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need_episodes = tv.episodes
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# 没有集的不处理
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if not need_episodes:
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continue
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# 循环种子
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for context in contexts:
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# 媒体信息
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media = context.media_info
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# 识别元数据
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meta = context.meta_info
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# 种子信息
|
||
torrent = context.torrent_info
|
||
# 非剧集不处理
|
||
if media.type != MediaType.TV:
|
||
continue
|
||
# 不重复添加
|
||
if context in downloaded_list:
|
||
continue
|
||
# 没有需要集后退出
|
||
if not need_episodes:
|
||
break
|
||
# 选中一个单季整季的或单季包括需要的所有集的
|
||
if media.tmdb_id == need_tmdbid \
|
||
and (not meta.episode_list
|
||
or set(meta.episode_list).intersection(set(need_episodes))) \
|
||
and len(meta.season_list) == 1 \
|
||
and meta.season_list[0] == need_season:
|
||
# 检查种子看是否有需要的集
|
||
torrent_path, _, torrent_files = self.download_torrent(torrent, userid=userid)
|
||
if not torrent_path:
|
||
continue
|
||
# 种子全部集
|
||
torrent_episodes = self.torrent.get_torrent_episodes(torrent_files)
|
||
# 选中的集
|
||
selected_episodes = set(torrent_episodes).intersection(set(need_episodes))
|
||
if not selected_episodes:
|
||
logger.info(f"{torrent.site_name} - {torrent.title} 没有需要的集，跳过...")
|
||
continue
|
||
# 添加下载
|
||
download_id = self.download_single(context=context,
|
||
torrent_file=torrent_path,
|
||
episodes=selected_episodes,
|
||
save_path=save_path,
|
||
userid=userid)
|
||
if not download_id:
|
||
continue
|
||
# 把识别的集更新到上下文
|
||
context.meta_info.begin_episode = min(selected_episodes)
|
||
context.meta_info.end_episode = max(selected_episodes)
|
||
# 下载成功
|
||
downloaded_list.append(context)
|
||
# 更新仍需集数
|
||
need_episodes = __update_episodes(_tmdbid=need_tmdbid,
|
||
_need=need_episodes,
|
||
_sea=need_season,
|
||
_current=selected_episodes)
|
||
|
||
# 返回下载的资源，剩下没下完的
|
||
return downloaded_list, no_exists
|
||
|
||
def get_no_exists_info(self, meta: MetaBase,
|
||
mediainfo: MediaInfo,
|
||
no_exists: Dict[int, Dict[int, NotExistMediaInfo]] = None,
|
||
totals: Dict[int, int] = None
|
||
) -> Tuple[bool, Dict[int, Dict[int, NotExistMediaInfo]]]:
|
||
"""
|
||
检查媒体库，查询是否存在，对于剧集同时返回不存在的季集信息
|
||
:param meta: 元数据
|
||
:param mediainfo: 已识别的媒体信息
|
||
:param no_exists: 在调用该方法前已经存储的不存在的季集信息，有传入时该函数搜索的内容将会叠加后输出
|
||
:param totals: 电视剧每季的总集数
|
||
:return: 当前媒体是否缺失，各标题总的季集和缺失的季集
|
||
"""
|
||
|
||
def __append_no_exists(_season: int, _episodes: list, _total: int, _start: int):
|
||
"""
|
||
添加不存在的季集信息
|
||
{tmdbid: [
|
||
"season": int,
|
||
"episodes": list,
|
||
"total_episode": int,
|
||
"start_episode": int
|
||
]}
|
||
"""
|
||
if not no_exists.get(mediainfo.tmdb_id):
|
||
no_exists[mediainfo.tmdb_id] = {
|
||
_season: NotExistMediaInfo(
|
||
season=_season,
|
||
episodes=_episodes,
|
||
total_episode=_total,
|
||
start_episode=_start
|
||
)
|
||
}
|
||
else:
|
||
no_exists[mediainfo.tmdb_id][_season] = NotExistMediaInfo(
|
||
season=_season,
|
||
episodes=_episodes,
|
||
total_episode=_total,
|
||
start_episode=_start
|
||
)
|
||
|
||
if not no_exists:
|
||
no_exists = {}
|
||
|
||
if not totals:
|
||
totals = {}
|
||
|
||
if mediainfo.type == MediaType.MOVIE:
|
||
# 电影
|
||
itemid = self.mediaserver.get_item_id(mtype=mediainfo.type.value,
|
||
tmdbid=mediainfo.tmdb_id)
|
||
exists_movies: Optional[ExistMediaInfo] = self.media_exists(mediainfo=mediainfo, itemid=itemid)
|
||
if exists_movies:
|
||
logger.info(f"媒体库中已存在电影：{mediainfo.title_year}")
|
||
return True, {}
|
||
return False, {}
|
||
else:
|
||
if not mediainfo.seasons:
|
||
# 补充媒体信息
|
||
mediainfo: MediaInfo = self.recognize_media(mtype=mediainfo.type,
|
||
tmdbid=mediainfo.tmdb_id)
|
||
if not mediainfo:
|
||
logger.error(f"媒体信息识别失败！")
|
||
return False, {}
|
||
if not mediainfo.seasons:
|
||
logger.error(f"媒体信息中没有季集信息：{mediainfo.title_year}")
|
||
return False, {}
|
||
# 电视剧
|
||
itemid = self.mediaserver.get_item_id(mtype=mediainfo.type.value,
|
||
tmdbid=mediainfo.tmdb_id,
|
||
season=mediainfo.season)
|
||
# 媒体库已存在的剧集
|
||
exists_tvs: Optional[ExistMediaInfo] = self.media_exists(mediainfo=mediainfo, itemid=itemid)
|
||
if not exists_tvs:
|
||
# 所有季集均缺失
|
||
for season, episodes in mediainfo.seasons.items():
|
||
if not episodes:
|
||
continue
|
||
# 全季不存在
|
||
if meta.season_list \
|
||
and season not in meta.season_list:
|
||
continue
|
||
# 总集数
|
||
total_ep = totals.get(season) or len(episodes)
|
||
__append_no_exists(_season=season, _episodes=[],
|
||
_total=total_ep, _start=min(episodes))
|
||
return False, no_exists
|
||
else:
|
||
# 存在一些，检查每季缺失的季集
|
||
for season, episodes in mediainfo.seasons.items():
|
||
if meta.begin_season \
|
||
and season not in meta.season_list:
|
||
continue
|
||
if not episodes:
|
||
continue
|
||
# 该季总集数
|
||
season_total = totals.get(season) or len(episodes)
|
||
# 该季已存在的集
|
||
exist_episodes = exists_tvs.seasons.get(season)
|
||
if exist_episodes:
|
||
# 已存在取差集
|
||
if totals.get(season):
|
||
# 按总集数计算缺失集（开始集为TMDB中的最小集）
|
||
lack_episodes = list(set(range(min(episodes),
|
||
season_total + min(episodes))
|
||
).difference(set(exist_episodes)))
|
||
else:
|
||
# 按TMDB集数计算缺失集
|
||
lack_episodes = list(set(episodes).difference(set(exist_episodes)))
|
||
if not lack_episodes:
|
||
# 全部集存在
|
||
continue
|
||
# 添加不存在的季集信息
|
||
__append_no_exists(_season=season, _episodes=lack_episodes,
|
||
_total=season_total, _start=min(episodes))
|
||
else:
|
||
# 全季不存在
|
||
__append_no_exists(_season=season, _episodes=[],
|
||
_total=season_total, _start=min(episodes))
|
||
# 存在不完整的剧集
|
||
if no_exists:
|
||
logger.debug(f"媒体库中已存在部分剧集，缺失：{no_exists}")
|
||
return False, no_exists
|
||
# 全部存在
|
||
return True, no_exists
|
||
|
||
def remote_downloading(self, channel: MessageChannel, userid: Union[str, int] = None):
|
||
"""
|
||
查询正在下载的任务，并发送消息
|
||
"""
|
||
torrents = self.list_torrents(status=TorrentStatus.DOWNLOADING)
|
||
if not torrents:
|
||
self.post_message(Notification(
|
||
channel=channel,
|
||
mtype=NotificationType.Download,
|
||
title="没有正在下载的任务！"))
|
||
return
|
||
# 发送消息
|
||
title = f"共 {len(torrents)} 个任务正在下载："
|
||
messages = []
|
||
index = 1
|
||
for torrent in torrents:
|
||
messages.append(f"{index}. {torrent.title} "
|
||
f"{StringUtils.str_filesize(torrent.size)} "
|
||
f"{round(torrent.progress * 100, 1)}%")
|
||
index += 1
|
||
self.post_message(Notification(
|
||
channel=channel, mtype=NotificationType.Download,
|
||
title=title, text="\n".join(messages), userid=userid))
|
||
|
||
def downloading(self) -> List[DownloadingTorrent]:
|
||
"""
|
||
查询正在下载的任务
|
||
"""
|
||
torrents = self.list_torrents(status=TorrentStatus.DOWNLOADING)
|
||
if not torrents:
|
||
return []
|
||
ret_torrents = []
|
||
for torrent in torrents:
|
||
history = self.downloadhis.get_by_hash(torrent.hash)
|
||
if history:
|
||
torrent.media = {
|
||
"tmdbid": history.tmdbid,
|
||
"type": history.type,
|
||
"title": history.title,
|
||
"season": history.seasons,
|
||
"episode": history.episodes,
|
||
"image": history.image,
|
||
}
|
||
ret_torrents.append(torrent)
|
||
return ret_torrents
|
||
|
||
def set_downloading(self, hash_str, oper: str) -> bool:
|
||
"""
|
||
控制下载任务 start/stop
|
||
"""
|
||
if oper == "start":
|
||
return self.start_torrents(hashs=[hash_str])
|
||
elif oper == "stop":
|
||
return self.stop_torrents(hashs=[hash_str])
|
||
return False
|
||
|
||
def remove_downloading(self, hash_str: str) -> bool:
|
||
"""
|
||
删除下载任务
|
||
"""
|
||
return self.remove_torrents(hashs=[hash_str])
|