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Prowlarr/NzbDrone.Core/Providers/Indexer/IndexerProviderBase.cs

152 lines
5.5 KiB

using System.ServiceModel.Syndication;
using NLog;
using NzbDrone.Core.Model;
using NzbDrone.Core.Providers.Core;
using NzbDrone.Core.Repository;
using SubSonic.Repository;
namespace NzbDrone.Core.Providers.Indexer
{
public abstract class IndexerProviderBase
{
protected static readonly Logger Logger = LogManager.GetCurrentClassLogger();
protected readonly ConfigProvider _configProvider;
protected readonly EpisodeProvider _episodeProvider;
private readonly HttpProvider _httpProvider;
protected readonly IRepository _repository;
private readonly IndexerProvider _indexerProvider;
protected readonly SeasonProvider _seasonProvider;
protected readonly SeriesProvider _seriesProvider;
public IndexerProviderBase(SeriesProvider seriesProvider, SeasonProvider seasonProvider,
EpisodeProvider episodeProvider, ConfigProvider configProvider,
HttpProvider httpProvider, IRepository repository, IndexerProvider indexerProvider)
{
_seriesProvider = seriesProvider;
_seasonProvider = seasonProvider;
_episodeProvider = episodeProvider;
_configProvider = configProvider;
_httpProvider = httpProvider;
_repository = repository;
_indexerProvider = indexerProvider;
}
/// <summary>
/// Gets the name for the feed
/// </summary>
public abstract string Name { get; }
/// <summary>
/// Gets the source URL for the feed
/// </summary>
protected abstract string[] Urls { get; }
protected IndexerSetting Settings
{
get
{
return _indexerProvider.GetSettings(GetType());
}
}
/// <summary>
/// Fetches RSS feed and process each news item.
/// </summary>
public void Fetch()
{
Logger.Info("Fetching feeds from " + Settings.Name);
foreach (var url in Urls)
{
Logger.Debug("Downloading RSS " + url);
var feed = SyndicationFeed.Load(_httpProvider.DownloadXml(url)).Items;
foreach (var item in feed)
{
ProcessItem(item);
}
}
Logger.Info("Finished processing feeds from " + Settings.Name);
}
private void ProcessItem(SyndicationItem feedItem)
{
Logger.Info("Processing RSS feed item " + feedItem.Title.Text);
var parseResult = ParseFeed(feedItem);
if (parseResult != null)
{
if (!_seriesProvider.IsMonitored(parseResult.SeriesId))
{
Logger.Debug("{0} is present in the DB but not tracked. skipping.", parseResult.SeriesTitle);
return;
}
if (!_seriesProvider.QualityWanted(parseResult.SeriesId, parseResult.Quality))
{
Logger.Debug("Post doesn't meet the quality requirements [{0}]. skipping.", parseResult.Quality);
return;
}
if (_seasonProvider.IsIgnored(parseResult.SeriesId, parseResult.SeasonNumber))
{
Logger.Debug("Season {0} is currently set to ignore. skipping.", parseResult.SeasonNumber);
return;
}
if (!_episodeProvider.IsNeeded(parseResult))
{
Logger.Debug("Episode {0} is not needed. skipping.", parseResult);
return;
}
//Should probably queue item to download
}
}
/// <summary>
/// Parses the RSS feed item and.
/// </summary>
/// <param name = "item">RSS feed item to parse</param>
/// <returns>Detailed episode info</returns>
protected EpisodeParseResult ParseFeed(SyndicationItem item)
{
var episodeParseResult = Parser.ParseEpisodeInfo(item.Title.Text);
if (episodeParseResult == null) return CustomParser(item, null);
var seriesInfo = _seriesProvider.FindSeries(episodeParseResult.SeriesTitle);
if (seriesInfo != null)
{
episodeParseResult.SeriesId = seriesInfo.SeriesId;
episodeParseResult.SeriesTitle = seriesInfo.Title;
return CustomParser(item, episodeParseResult);
}
Logger.Debug("Unable to map {0} to any of series in database", episodeParseResult.SeriesTitle);
return CustomParser(item, episodeParseResult);
}
/// <summary>
/// This method can be overwritten to provide indexer specific info parsing
/// </summary>
/// <param name="item">RSS item that needs to be parsed</param>
/// <param name="currentResult">Result of the built in parse function.</param>
/// <returns></returns>
protected virtual EpisodeParseResult CustomParser(SyndicationItem item, EpisodeParseResult currentResult)
{
return currentResult;
}
/// <summary>
/// Generates direct link to download an NZB
/// </summary>
/// <param name = "item">RSS Feed item to generate the link for</param>
/// <returns>Download link URL</returns>
protected abstract string NzbDownloadUrl(SyndicationItem item);
}
}