mirror of https://github.com/Radarr/Radarr
127 lines
4.2 KiB
C#
127 lines
4.2 KiB
C#
using System.ServiceModel.Syndication;
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using System.Xml;
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using NLog;
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using NzbDrone.Core.Model;
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using NzbDrone.Core.Providers.Core;
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namespace NzbDrone.Core.Providers.Feed
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{
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public abstract class FeedProviderBase
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{
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protected readonly ISeriesProvider _seriesProvider;
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protected readonly ISeasonProvider _seasonProvider;
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protected readonly IEpisodeProvider _episodeProvider;
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protected readonly IConfigProvider _configProvider;
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private readonly IHttpProvider _httpProvider;
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protected static readonly Logger Logger = LogManager.GetCurrentClassLogger();
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public FeedProviderBase(ISeriesProvider seriesProvider, ISeasonProvider seasonProvider,
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IEpisodeProvider episodeProvider, IConfigProvider configProvider, IHttpProvider httpProvider)
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{
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_seriesProvider = seriesProvider;
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_seasonProvider = seasonProvider;
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_episodeProvider = episodeProvider;
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_configProvider = configProvider;
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_httpProvider = httpProvider;
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}
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/// <summary>
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/// Gets the source URL for the feed
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/// </summary>
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protected abstract string[] URL { get; }
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/// <summary>
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/// Gets the name for this feed
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/// </summary>
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protected abstract string Name { get; }
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/// <summary>
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/// Generates direct link to download an NZB
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/// </summary>
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/// <param name="item">RSS Feed item to generate the link for</param>
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/// <returns>Download link URL</returns>
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protected abstract string NzbDownloadUrl(SyndicationItem item);
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/// <summary>
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/// Parses the RSS feed item and.
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/// </summary>
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/// <param name="item">RSS feed item to parse</param>
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/// <returns>Detailed episode info</returns>
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protected EpisodeParseResult ParseFeed(SyndicationItem item)
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{
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var episodeParseResult = Parser.ParseEpisodeInfo(item.Title.Text);
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if (episodeParseResult == null) return null;
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var seriesInfo = _seriesProvider.FindSeries(episodeParseResult.SeriesTitle);
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if (seriesInfo != null)
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{
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episodeParseResult.SeriesId = seriesInfo.SeriesId;
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episodeParseResult.SeriesTitle = seriesInfo.Title;
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return episodeParseResult;
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}
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Logger.Debug("Unable to map {0} to any of series in database", episodeParseResult.SeriesTitle);
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return null;
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}
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/// <summary>
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/// Fetches RSS feed and process each news item.
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/// </summary>
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public void Fetch()
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{
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Logger.Info("Fetching feeds from " + Name);
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foreach (var url in URL)
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{
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Logger.Debug("Downloading RSS " + url);
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var feed = SyndicationFeed.Load(_httpProvider.DownloadXml(url)).Items;
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foreach (var item in feed)
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{
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ProcessItem(item);
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}
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}
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Logger.Info("Finished processing feeds from " + Name);
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}
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private void ProcessItem(SyndicationItem feedItem)
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{
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Logger.Info("Processing RSS feed item " + feedItem.Title.Text);
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var parseResult = ParseFeed(feedItem);
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if (parseResult != null)
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{
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if (!_seriesProvider.IsMonitored(parseResult.SeriesId))
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{
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Logger.Debug("{0} is present in the DB but not tracked. skipping.", parseResult.SeriesTitle);
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}
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if (!_seriesProvider.QualityWanted(parseResult.SeriesId, parseResult.Quality))
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{
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Logger.Debug("Post doesn't meet the quality requirements [{0}]. skipping.", parseResult.Quality);
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}
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if (_seasonProvider.IsIgnored(parseResult.SeriesId, parseResult.SeasonNumber))
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{
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Logger.Debug("Season {0} is currently set to ignore. skipping.", parseResult.SeasonNumber);
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}
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if (!_episodeProvider.IsNeeded(parseResult))
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{
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Logger.Debug("Episode {0} is not needed. skipping.", parseResult);
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}
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}
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}
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}
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}
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