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293 lines
12 KiB
293 lines
12 KiB
using System;
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using System.Collections.Generic;
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using System.Linq;
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using System.Net.Http;
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using System.Xml;
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using System.Xml.Linq;
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using NLog;
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using NzbDrone.Common.Cache;
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using NzbDrone.Common.Extensions;
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using NzbDrone.Common.Http;
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using NzbDrone.Common.Serializer;
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using NzbDrone.Core.ThingiProvider;
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namespace NzbDrone.Core.Indexers.Newznab
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{
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public interface INewznabCapabilitiesProvider
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{
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IndexerCapabilities GetCapabilities(NewznabSettings settings, ProviderDefinition definition);
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}
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public class NewznabCapabilitiesProvider : INewznabCapabilitiesProvider
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{
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private readonly ICached<IndexerCapabilities> _capabilitiesCache;
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private readonly IIndexerHttpClient _httpClient;
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private readonly Logger _logger;
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public NewznabCapabilitiesProvider(ICacheManager cacheManager, IIndexerHttpClient httpClient, Logger logger)
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{
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_capabilitiesCache = cacheManager.GetCache<IndexerCapabilities>(GetType());
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_httpClient = httpClient;
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_logger = logger;
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}
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public IndexerCapabilities GetCapabilities(NewznabSettings indexerSettings, ProviderDefinition definition)
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{
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var key = indexerSettings.ToJson();
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return _capabilitiesCache.Get(key, () => FetchCapabilities(indexerSettings, definition), TimeSpan.FromDays(7));
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}
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private IndexerCapabilities FetchCapabilities(NewznabSettings indexerSettings, ProviderDefinition definition)
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{
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var capabilities = new IndexerCapabilities();
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var url = string.Format("{0}{1}?t=caps", indexerSettings.BaseUrl.TrimEnd('/'), indexerSettings.ApiPath.TrimEnd('/'));
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if (indexerSettings.ApiKey.IsNotNullOrWhiteSpace())
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{
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url += "&apikey=" + indexerSettings.ApiKey;
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}
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var request = new HttpRequest(url, HttpAccept.Rss);
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request.AllowAutoRedirect = true;
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request.Method = HttpMethod.Get;
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HttpResponse response;
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try
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{
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response = _httpClient.ExecuteProxied(request, definition);
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}
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catch (Exception ex)
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{
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_logger.Debug(ex, "Failed to get Newznab API capabilities from {0}", indexerSettings.BaseUrl);
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throw;
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}
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try
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{
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capabilities = ParseCapabilities(response);
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}
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catch (XmlException ex)
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{
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ex.WithData(response, 128 * 1024);
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_logger.Trace("Unexpected Response content ({0} bytes): {1}", response.ResponseData.Length, response.Content);
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_logger.Debug(ex, "Failed to parse newznab api capabilities for {0}", indexerSettings.BaseUrl);
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throw;
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}
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catch (Exception ex)
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{
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ex.WithData(response, 128 * 1024);
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_logger.Trace("Unexpected Response content ({0} bytes): {1}", response.ResponseData.Length, response.Content);
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}
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return capabilities;
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}
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private IndexerCapabilities ParseCapabilities(HttpResponse response)
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{
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var capabilities = new IndexerCapabilities();
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var xDoc = XDocument.Parse(response.Content);
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if (xDoc == null)
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{
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throw new XmlException("Invalid XML").WithData(response);
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}
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NewznabRssParser.CheckError(xDoc, new IndexerResponse(new IndexerRequest(response.Request), response));
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var xmlRoot = xDoc.Element("caps");
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if (xmlRoot == null)
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{
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throw new XmlException("Unexpected XML").WithData(response);
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}
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var xmlLimits = xmlRoot.Element("limits");
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if (xmlLimits != null)
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{
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capabilities.LimitsDefault = int.Parse(xmlLimits.Attribute("default").Value);
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capabilities.LimitsMax = int.Parse(xmlLimits.Attribute("max").Value);
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}
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var xmlSearching = xmlRoot.Element("searching");
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if (xmlSearching != null)
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{
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var xmlBasicSearch = xmlSearching.Element("search");
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if (xmlBasicSearch == null || xmlBasicSearch.Attribute("available").Value != "yes")
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{
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capabilities.SearchParams = new List<SearchParam>();
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}
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else if (xmlBasicSearch.Attribute("supportedParams") != null)
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{
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foreach (var param in xmlBasicSearch.Attribute("supportedParams").Value.Split(','))
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{
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if (Enum.TryParse(param, true, out SearchParam searchParam) && !capabilities.SearchParams.Contains(searchParam))
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{
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capabilities.SearchParams.AddIfNotNull(searchParam);
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}
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}
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capabilities.SupportsRawSearch = xmlBasicSearch.Attribute("searchEngine")?.Value == "raw";
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}
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else
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{
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capabilities.SearchParams = new List<SearchParam> { SearchParam.Q };
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}
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var xmlMovieSearch = xmlSearching.Element("movie-search");
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if (xmlMovieSearch == null || xmlMovieSearch.Attribute("available").Value != "yes")
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{
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capabilities.MovieSearchParams = new List<MovieSearchParam>();
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}
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else if (xmlMovieSearch.Attribute("supportedParams") != null)
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{
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foreach (var param in xmlMovieSearch.Attribute("supportedParams").Value.Split(','))
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{
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if (Enum.TryParse(param, true, out MovieSearchParam searchParam) && !capabilities.MovieSearchParams.Contains(searchParam))
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{
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capabilities.MovieSearchParams.AddIfNotNull(searchParam);
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}
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}
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}
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else
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{
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capabilities.MovieSearchParams = new List<MovieSearchParam> { MovieSearchParam.Q };
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}
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var xmlTvSearch = xmlSearching.Element("tv-search");
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if (xmlTvSearch == null || xmlTvSearch.Attribute("available").Value != "yes")
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{
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capabilities.TvSearchParams = new List<TvSearchParam>();
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}
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else if (xmlTvSearch.Attribute("supportedParams") != null)
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{
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foreach (var param in xmlTvSearch.Attribute("supportedParams").Value.Split(','))
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{
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if (Enum.TryParse(param, true, out TvSearchParam searchParam) && !capabilities.TvSearchParams.Contains(searchParam))
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{
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capabilities.TvSearchParams.AddIfNotNull(searchParam);
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}
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}
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}
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else
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{
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capabilities.TvSearchParams = new List<TvSearchParam> { TvSearchParam.Q };
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}
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var xmlAudioSearch = xmlSearching.Element("audio-search");
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if (xmlAudioSearch == null || xmlAudioSearch.Attribute("available").Value != "yes")
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{
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capabilities.MusicSearchParams = new List<MusicSearchParam>();
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}
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else if (xmlAudioSearch.Attribute("supportedParams") != null)
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{
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foreach (var param in xmlAudioSearch.Attribute("supportedParams").Value.Split(','))
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{
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if (Enum.TryParse(param, true, out MusicSearchParam searchParam) && !capabilities.MusicSearchParams.Contains(searchParam))
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{
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capabilities.MusicSearchParams.AddIfNotNull(searchParam);
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}
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}
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}
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else
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{
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capabilities.MusicSearchParams = new List<MusicSearchParam> { MusicSearchParam.Q };
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}
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var xmlBookSearch = xmlSearching.Element("book-search");
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if (xmlBookSearch == null || xmlBookSearch.Attribute("available").Value != "yes")
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{
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capabilities.BookSearchParams = new List<BookSearchParam>();
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}
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else if (xmlBookSearch.Attribute("supportedParams") != null)
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{
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foreach (var param in xmlBookSearch.Attribute("supportedParams").Value.Split(','))
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{
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if (Enum.TryParse(param, true, out BookSearchParam searchParam) && !capabilities.BookSearchParams.Contains(searchParam))
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{
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capabilities.BookSearchParams.AddIfNotNull(searchParam);
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}
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}
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}
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else
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{
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capabilities.BookSearchParams = new List<BookSearchParam> { BookSearchParam.Q };
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}
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}
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var xmlCategories = xmlRoot.Element("categories");
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if (xmlCategories != null)
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{
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foreach (var xmlCategory in xmlCategories.Elements("category"))
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{
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var parentName = xmlCategory.Attribute("name").Value;
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var parentNameLower = parentName?.ToLowerInvariant();
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var parentId = int.Parse(xmlCategory.Attribute("id").Value);
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var mappedCat = NewznabStandardCategory.ParentCats.FirstOrDefault(x => parentNameLower.Contains(x.Name.ToLower()));
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if (mappedCat == null)
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{
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// Try to find name and Id in AllCats for sub cats that are mapped as parents
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mappedCat = NewznabStandardCategory.AllCats.FirstOrDefault(x => x.Id == parentId && x.Name.ToLower().Contains(parentNameLower));
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}
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if (mappedCat == null)
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{
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// Try by parent id if name fails
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mappedCat = NewznabStandardCategory.ParentCats.FirstOrDefault(x => x.Id == parentId);
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}
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if (mappedCat == null)
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{
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// Fallback to Other
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mappedCat = NewznabStandardCategory.Other;
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}
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foreach (var xmlSubcat in xmlCategory.Elements("subcat"))
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{
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var subName = xmlSubcat.Attribute("name").Value;
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var subId = int.Parse(xmlSubcat.Attribute("id").Value);
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var mappingName = $"{mappedCat.Name}/{subName}";
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var mappedSubCat = NewznabStandardCategory.AllCats.FirstOrDefault(x => x.Name.ToLower() == mappingName.ToLower());
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if (mappedSubCat == null)
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{
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// Try by child id if name fails
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mappedSubCat = NewznabStandardCategory.AllCats.FirstOrDefault(x => x.Id == subId);
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}
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if (mappedSubCat == null && mappedCat.Id != NewznabStandardCategory.Other.Id)
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{
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// Try by Parent/Other if parent is not other
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mappedSubCat = NewznabStandardCategory.AllCats.FirstOrDefault(x => x.Name.ToLower() == $"{mappedCat.Name.ToLower()}/other");
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}
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if (mappedSubCat == null)
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{
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// Fallback to Misc Other
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mappedSubCat = NewznabStandardCategory.OtherMisc;
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}
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if (mappedSubCat != null)
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{
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capabilities.Categories.AddCategoryMapping(subId, mappedSubCat, $"{parentName}/{subName}");
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}
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}
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if (mappedCat != null)
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{
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capabilities.Categories.AddCategoryMapping(parentId, mappedCat, parentName);
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}
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}
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}
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return capabilities;
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}
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}
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}
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