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187 lines
7.5 KiB
187 lines
7.5 KiB
using System;
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using System.Collections.Generic;
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using System.Linq;
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using System.Threading.Tasks;
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using NLog;
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using NzbDrone.Common.Instrumentation.Extensions;
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using NzbDrone.Core.Download;
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using NzbDrone.Core.Indexers;
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using NzbDrone.Core.Indexers.Events;
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using NzbDrone.Core.IndexerSearch.Definitions;
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using NzbDrone.Core.Messaging.Events;
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using NzbDrone.Core.Parser.Model;
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namespace NzbDrone.Core.IndexerSearch
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{
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public interface ISearchForNzb
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{
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Task<NewznabResults> Search(NewznabRequest request, List<int> indexerIds, bool interactiveSearch);
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}
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public class NzbSearchService : ISearchForNzb
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{
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private readonly IEventAggregator _eventAggregator;
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private readonly IIndexerFactory _indexerFactory;
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private readonly IDownloadMappingService _downloadMappingService;
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private readonly Logger _logger;
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public NzbSearchService(IEventAggregator eventAggregator,
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IIndexerFactory indexerFactory,
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IDownloadMappingService downloadMappingService,
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Logger logger)
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{
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_eventAggregator = eventAggregator;
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_indexerFactory = indexerFactory;
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_downloadMappingService = downloadMappingService;
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_logger = logger;
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}
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public Task<NewznabResults> Search(NewznabRequest request, List<int> indexerIds, bool interactiveSearch)
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{
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switch (request.t)
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{
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case "movie":
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return MovieSearch(request, indexerIds, interactiveSearch);
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case "music":
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return MusicSearch(request, indexerIds, interactiveSearch);
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case "tvsearch":
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return TvSearch(request, indexerIds, interactiveSearch);
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case "book":
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return BookSearch(request, indexerIds, interactiveSearch);
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default:
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return BasicSearch(request, indexerIds, interactiveSearch);
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}
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}
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private async Task<NewznabResults> MovieSearch(NewznabRequest request, List<int> indexerIds, bool interactiveSearch)
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{
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var searchSpec = Get<MovieSearchCriteria>(request, indexerIds, interactiveSearch);
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searchSpec.ImdbId = request.imdbid;
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searchSpec.TmdbId = request.tmdbid;
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searchSpec.TraktId = request.traktid;
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return new NewznabResults { Releases = await Dispatch(indexer => indexer.Fetch(searchSpec), searchSpec) };
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}
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private async Task<NewznabResults> MusicSearch(NewznabRequest request, List<int> indexerIds, bool interactiveSearch)
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{
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var searchSpec = Get<MusicSearchCriteria>(request, indexerIds, interactiveSearch);
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searchSpec.Artist = request.artist;
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searchSpec.Album = request.album;
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searchSpec.Label = request.label;
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return new NewznabResults { Releases = await Dispatch(indexer => indexer.Fetch(searchSpec), searchSpec) };
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}
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private async Task<NewznabResults> TvSearch(NewznabRequest request, List<int> indexerIds, bool interactiveSearch)
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{
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var searchSpec = Get<TvSearchCriteria>(request, indexerIds, interactiveSearch);
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searchSpec.Season = request.season;
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searchSpec.Episode = request.ep;
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searchSpec.TvdbId = request.tvdbid;
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searchSpec.ImdbId = request.imdbid;
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searchSpec.TraktId = request.traktid;
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searchSpec.RId = request.rid;
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searchSpec.TvMazeId = request.tvmazeid;
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return new NewznabResults { Releases = await Dispatch(indexer => indexer.Fetch(searchSpec), searchSpec) };
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}
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private async Task<NewznabResults> BookSearch(NewznabRequest request, List<int> indexerIds, bool interactiveSearch)
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{
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var searchSpec = Get<BookSearchCriteria>(request, indexerIds, interactiveSearch);
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searchSpec.Author = request.author;
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searchSpec.Title = request.title;
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return new NewznabResults { Releases = await Dispatch(indexer => indexer.Fetch(searchSpec), searchSpec) };
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}
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private async Task<NewznabResults> BasicSearch(NewznabRequest request, List<int> indexerIds, bool interactiveSearch)
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{
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var searchSpec = Get<BasicSearchCriteria>(request, indexerIds, interactiveSearch);
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return new NewznabResults { Releases = await Dispatch(indexer => indexer.Fetch(searchSpec), searchSpec) };
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}
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private TSpec Get<TSpec>(NewznabRequest query, List<int> indexerIds, bool interactiveSearch)
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where TSpec : SearchCriteriaBase, new()
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{
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var spec = new TSpec()
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{
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InteractiveSearch = interactiveSearch
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};
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if (query.cat != null)
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{
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spec.Categories = query.cat.Split(',').Where(s => !string.IsNullOrWhiteSpace(s)).Select(s => int.Parse(s)).ToArray();
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}
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else
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{
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spec.Categories = Array.Empty<int>();
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}
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spec.SearchTerm = query.q;
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spec.SearchType = query.t;
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spec.Limit = query.limit;
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spec.Offset = query.offset;
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spec.Source = query.source;
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spec.Host = query.host;
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spec.IndexerIds = indexerIds;
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return spec;
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}
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private async Task<List<ReleaseInfo>> Dispatch(Func<IIndexer, Task<IndexerPageableQueryResult>> searchAction, SearchCriteriaBase criteriaBase)
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{
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var indexers = _indexerFactory.GetAvailableProviders();
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if (criteriaBase.IndexerIds != null && criteriaBase.IndexerIds.Count > 0)
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{
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indexers = indexers.Where(i => criteriaBase.IndexerIds.Contains(i.Definition.Id) ||
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(criteriaBase.IndexerIds.Contains(-1) && i.Protocol == DownloadProtocol.Usenet) ||
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(criteriaBase.IndexerIds.Contains(-2) && i.Protocol == DownloadProtocol.Torrent))
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.ToList();
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}
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_logger.ProgressInfo("Searching indexers: [{0}] for {1}", string.Join(", ", indexers.Select(i => i.Definition.Name).ToList()), criteriaBase.ToString());
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var tasks = indexers.Select(x => DispatchIndexer(searchAction, x, criteriaBase));
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var batch = await Task.WhenAll(tasks);
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var reports = batch.SelectMany(x => x).ToList();
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_logger.Debug("Total of {0} reports were found for {1} from {2} indexers", reports.Count, criteriaBase, indexers.Count);
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return reports;
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}
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private async Task<IList<ReleaseInfo>> DispatchIndexer(Func<IIndexer, Task<IndexerPageableQueryResult>> searchAction, IIndexer indexer, SearchCriteriaBase criteriaBase)
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{
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try
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{
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var indexerReports = await searchAction(indexer);
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foreach (var query in indexerReports.Queries)
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{
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_eventAggregator.PublishEvent(new IndexerQueryEvent(indexer.Definition.Id, criteriaBase, query.ElapsedTime, query.StatusCode == 200, query.Releases.Count()));
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}
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return indexerReports.Releases;
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}
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catch (Exception e)
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{
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_eventAggregator.PublishEvent(new IndexerQueryEvent(indexer.Definition.Id, criteriaBase, 0, false));
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_logger.Error(e, "Error while searching for {0}", criteriaBase);
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}
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return new List<ReleaseInfo>();
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}
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}
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}
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