342 lines
15 KiB
Python
342 lines
15 KiB
Python
import pickle
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import re
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from concurrent.futures import ThreadPoolExecutor, as_completed
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from datetime import datetime
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from typing import Dict
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from typing import List, Optional
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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.context import Context
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from app.core.context import MediaInfo, TorrentInfo
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from app.core.metainfo import MetaInfo
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from app.db.systemconfig_oper import SystemConfigOper
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from app.helper.progress import ProgressHelper
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from app.helper.sites import SitesHelper
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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 NotExistMediaInfo
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from app.schemas.types import MediaType, ProgressKey, SystemConfigKey
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from app.utils.string import StringUtils
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class SearchChain(ChainBase):
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"""
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站点资源搜索处理链
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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.siteshelper = SitesHelper()
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self.progress = ProgressHelper()
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self.systemconfig = SystemConfigOper()
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self.torrenthelper = TorrentHelper()
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def search_by_tmdbid(self, tmdbid: int, mtype: MediaType = None, area: str = "title") -> List[Context]:
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"""
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根据TMDB ID搜索资源，精确匹配，但不不过滤本地存在的资源
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:param tmdbid: TMDB ID
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:param mtype: 媒体，电影 or 电视剧
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:param area: 搜索范围，title or imdbid
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"""
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mediainfo = self.recognize_media(tmdbid=tmdbid, mtype=mtype)
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if not mediainfo:
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logger.error(f'{tmdbid} 媒体信息识别失败！')
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return []
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results = self.process(mediainfo=mediainfo, area=area)
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# 保存眲结果
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bytes_results = pickle.dumps(results)
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self.systemconfig.set(SystemConfigKey.SearchResults, bytes_results)
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return results
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def search_by_title(self, title: str, page: int = 0, site: int = None) -> List[TorrentInfo]:
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"""
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根据标题搜索资源，不识别不过滤，直接返回站点内容
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:param title: 标题，为空时返回所有站点首页内容
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:param page: 页码
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:param site: 站点ID
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"""
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if title:
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logger.info(f'开始搜索资源，关键词：{title} ...')
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else:
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logger.info(f'开始浏览资源，站点：{site} ...')
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# 搜索
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return self.__search_all_sites(keyword=title, sites=[site] if site else None, page=page) or []
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def last_search_results(self) -> List[Context]:
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"""
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获取上次搜索结果
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"""
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results = self.systemconfig.get(SystemConfigKey.SearchResults)
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if not results:
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return []
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try:
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return pickle.loads(results)
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except Exception as e:
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print(str(e))
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return []
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def process(self, mediainfo: MediaInfo,
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keyword: str = None,
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no_exists: Dict[int, Dict[int, NotExistMediaInfo]] = None,
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sites: List[int] = None,
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filter_rule: str = None,
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area: str = "title") -> List[Context]:
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"""
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根据媒体信息搜索种子资源，精确匹配，应用过滤规则，同时根据no_exists过滤本地已存在的资源
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:param mediainfo: 媒体信息
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:param keyword: 搜索关键词
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:param no_exists: 缺失的媒体信息
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:param sites: 站点ID列表，为空时搜索所有站点
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:param filter_rule: 过滤规则，为空是使用默认搜索过滤规则
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:param area: 搜索范围，title or imdbid
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"""
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logger.info(f'开始搜索资源，关键词：{keyword or mediainfo.title} ...')
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# 补充媒体信息
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if not mediainfo.names:
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mediainfo: MediaInfo = self.recognize_media(mtype=mediainfo.type,
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tmdbid=mediainfo.tmdb_id)
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if not mediainfo:
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logger.error(f'媒体信息识别失败！')
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return []
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# 缺失的季集
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if no_exists and no_exists.get(mediainfo.tmdb_id):
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# 过滤剧集
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season_episodes = {sea: info.episodes
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for sea, info in no_exists[mediainfo.tmdb_id].items()}
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else:
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season_episodes = None
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# 搜索关键词
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if keyword:
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keywords = [keyword]
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elif mediainfo.original_title and mediainfo.title != mediainfo.original_title:
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keywords = [mediainfo.title, mediainfo.original_title]
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else:
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keywords = [mediainfo.title]
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# 执行搜索
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torrents: List[TorrentInfo] = []
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for keyword in keywords:
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torrents = self.__search_all_sites(
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mediainfo=mediainfo,
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keyword=keyword,
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sites=sites,
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area=area
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)
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if torrents:
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break
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if not torrents:
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logger.warn(f'{keyword or mediainfo.title} 未搜索到资源')
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return []
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# 过滤种子
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if filter_rule is None:
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# 取搜索优先级规则
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filter_rule = self.systemconfig.get(SystemConfigKey.SearchFilterRules)
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if filter_rule:
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logger.info(f'开始过滤资源，当前规则：{filter_rule} ...')
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result: List[TorrentInfo] = self.filter_torrents(rule_string=filter_rule,
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torrent_list=torrents,
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season_episodes=season_episodes,
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mediainfo=mediainfo)
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if result is not None:
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torrents = result
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if not torrents:
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logger.warn(f'{keyword or mediainfo.title} 没有符合优先级规则的资源')
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return []
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# 使用默认过滤规则再次过滤
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torrents = self.filter_torrents_by_default_rule(torrents)
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if not torrents:
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logger.warn(f'{keyword or mediainfo.title} 没有符合默认过滤规则的资源')
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return []
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# 匹配的资源
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_match_torrents = []
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# 总数
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_total = len(torrents)
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# 已处理数
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_count = 0
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if mediainfo:
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self.progress.start(ProgressKey.Search)
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logger.info(f'开始匹配，总 {_total} 个资源 ...')
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self.progress.update(value=0, text=f'开始匹配，总 {_total} 个资源 ...', key=ProgressKey.Search)
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for torrent in torrents:
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_count += 1
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self.progress.update(value=(_count / _total) * 100,
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text=f'正在匹配 {torrent.site_name}，已完成 {_count} / {_total} ...',
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key=ProgressKey.Search)
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# 比对IMDBID
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if torrent.imdbid \
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and mediainfo.imdb_id \
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and torrent.imdbid == mediainfo.imdb_id:
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logger.info(f'{mediainfo.title} 匹配到资源：{torrent.site_name} - {torrent.title}')
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_match_torrents.append(torrent)
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continue
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# 识别
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torrent_meta = MetaInfo(title=torrent.title, subtitle=torrent.description)
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# 比对类型
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if (torrent_meta.type == MediaType.TV and mediainfo.type != MediaType.TV) \
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or (torrent_meta.type != MediaType.TV and mediainfo.type == MediaType.TV):
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logger.warn(f'{torrent.site_name} - {torrent.title} 类型不匹配')
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continue
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# 比对年份
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if mediainfo.year:
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if mediainfo.type == MediaType.TV:
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# 剧集年份，每季的年份可能不同
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if torrent_meta.year and torrent_meta.year not in [year for year in
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mediainfo.season_years.values()]:
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logger.warn(f'{torrent.site_name} - {torrent.title} 年份不匹配')
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continue
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else:
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# 电影年份，上下浮动1年
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if torrent_meta.year not in [str(int(mediainfo.year) - 1),
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mediainfo.year,
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str(int(mediainfo.year) + 1)]:
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logger.warn(f'{torrent.site_name} - {torrent.title} 年份不匹配')
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continue
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# 比对标题和原语种标题
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meta_name = StringUtils.clear_upper(torrent_meta.name)
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if meta_name in [
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StringUtils.clear_upper(mediainfo.title),
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StringUtils.clear_upper(mediainfo.original_title)
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]:
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logger.info(f'{mediainfo.title} 通过标题匹配到资源：{torrent.site_name} - {torrent.title}')
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_match_torrents.append(torrent)
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continue
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# 在副标题中判断是否存在标题与原语种标题
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if torrent.description:
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subtitle = torrent.description.split()
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if (StringUtils.is_chinese(mediainfo.title)
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and str(mediainfo.title) in subtitle) \
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or (StringUtils.is_chinese(mediainfo.original_title)
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and str(mediainfo.original_title) in subtitle):
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logger.info(f'{mediainfo.title} 通过副标题匹配到资源：{torrent.site_name} - {torrent.title}，'
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f'副标题：{torrent.description}')
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_match_torrents.append(torrent)
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continue
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# 比对别名和译名
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for name in mediainfo.names:
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if StringUtils.clear_upper(name) == meta_name:
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logger.info(f'{mediainfo.title} 通过别名或译名匹配到资源：{torrent.site_name} - {torrent.title}')
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_match_torrents.append(torrent)
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break
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else:
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logger.warn(f'{torrent.site_name} - {torrent.title} 标题不匹配')
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self.progress.update(value=100,
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text=f'匹配完成，共匹配到 {len(_match_torrents)} 个资源',
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key=ProgressKey.Search)
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self.progress.end(ProgressKey.Search)
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else:
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_match_torrents = torrents
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logger.info(f"匹配完成，共匹配到 {len(_match_torrents)} 个资源")
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# 去掉mediainfo中多余的数据
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mediainfo.clear()
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# 组装上下文
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contexts = [Context(meta_info=MetaInfo(title=torrent.title, subtitle=torrent.description),
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media_info=mediainfo,
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torrent_info=torrent) for torrent in _match_torrents]
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# 排序
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contexts = self.torrenthelper.sort_torrents(contexts)
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# 返回
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return contexts
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def __search_all_sites(self, mediainfo: Optional[MediaInfo] = None,
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keyword: str = None,
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sites: List[int] = None,
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page: int = 0,
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area: str = "title") -> Optional[List[TorrentInfo]]:
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"""
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多线程搜索多个站点
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:param mediainfo: 识别的媒体信息
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:param keyword: 搜索关键词，如有按关键词搜索，否则按媒体信息名称搜索
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:param sites: 指定站点ID列表，如有则只搜索指定站点，否则搜索所有站点
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:param page: 搜索页码
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:param area: 搜索区域 title or imdbid
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:reutrn: 资源列表
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"""
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# 未开启的站点不搜索
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indexer_sites = []
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# 配置的索引站点
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if not sites:
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sites = self.systemconfig.get(SystemConfigKey.IndexerSites) or []
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for indexer in self.siteshelper.get_indexers():
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# 检查站点索引开关
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if not sites or indexer.get("id") in sites:
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# 站点流控
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state, msg = self.siteshelper.check(indexer.get("domain"))
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if state:
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logger.warn(msg)
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continue
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indexer_sites.append(indexer)
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if not indexer_sites:
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logger.warn('未开启任何有效站点，无法搜索资源')
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return []
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# 开始进度
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self.progress.start(ProgressKey.Search)
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# 开始计时
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start_time = datetime.now()
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# 总数
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total_num = len(indexer_sites)
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# 完成数
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finish_count = 0
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# 更新进度
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self.progress.update(value=0,
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text=f"开始搜索，共 {total_num} 个站点 ...",
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key=ProgressKey.Search)
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# 多线程
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executor = ThreadPoolExecutor(max_workers=len(indexer_sites))
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all_task = []
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for site in indexer_sites:
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task = executor.submit(self.search_torrents, mediainfo=mediainfo,
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site=site, keyword=keyword, page=page, area=area)
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all_task.append(task)
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# 结果集
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results = []
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for future in as_completed(all_task):
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finish_count += 1
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result = future.result()
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if result:
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results.extend(result)
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logger.info(f"站点搜索进度：{finish_count} / {total_num}")
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self.progress.update(value=finish_count / total_num * 100,
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text=f"正在搜索{keyword or ''}，已完成 {finish_count} / {total_num} 个站点 ...",
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key=ProgressKey.Search)
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# 计算耗时
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end_time = datetime.now()
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# 更新进度
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self.progress.update(value=100,
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text=f"站点搜索完成，有效资源数：{len(results)}，总耗时 {(end_time - start_time).seconds} 秒",
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key=ProgressKey.Search)
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logger.info(f"站点搜索完成，有效资源数：{len(results)}，总耗时 {(end_time - start_time).seconds} 秒")
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# 结束进度
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self.progress.end(ProgressKey.Search)
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# 返回
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return results
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def filter_torrents_by_default_rule(self,
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torrents: List[TorrentInfo]) -> List[TorrentInfo]:
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# 取默认过滤规则
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default_include_exclude = self.systemconfig.get(SystemConfigKey.DefaultIncludeExcludeFilter) or {}
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if not default_include_exclude:
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return torrents
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include = default_include_exclude.get("include")
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exclude = default_include_exclude.get("exclude")
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new_torrents = []
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for torrent in torrents:
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# 包含
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if include:
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if not re.search(r"%s" % include,
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f"{torrent.title} {torrent.description}", re.I):
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logger.info(f"{torrent.title} 不匹配包含规则 {include}")
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continue
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# 排除
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if exclude:
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if re.search(r"%s" % exclude,
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f"{torrent.title} {torrent.description}", re.I):
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logger.info(f"{torrent.title} 匹配排除规则 {exclude}")
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continue
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new_torrents.append(torrent)
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return new_torrents
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