mirror of
https://github.com/Sonarr/Sonarr.git
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132 lines
4.4 KiB
C#
132 lines
4.4 KiB
C#
using System;
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using System.Collections.Generic;
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using System.Net;
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using System.ServiceModel.Syndication;
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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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using NzbDrone.Core.Repository;
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namespace NzbDrone.Core.Providers.Indexer
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{
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public abstract class IndexerBase
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{
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protected readonly Logger _logger;
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private readonly HttpProvider _httpProvider;
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protected readonly ConfigProvider _configProvider;
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private readonly IndexerProvider _indexerProvider;
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protected IndexerBase(HttpProvider httpProvider, ConfigProvider configProvider, IndexerProvider indexerProvider)
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{
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_httpProvider = httpProvider;
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_configProvider = configProvider;
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_indexerProvider = indexerProvider;
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_logger = LogManager.GetLogger(GetType().ToString());
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}
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/// <summary>
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/// Gets the name for the feed
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/// </summary>
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public abstract string Name { get; }
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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[] Urls { get; }
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/// <summary>
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/// Gets the credential.
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/// </summary>
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protected virtual NetworkCredential Credentials
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{
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get { return null; }
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}
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public IndexerSetting Settings
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{
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get
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{
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return _indexerProvider.GetSettings(GetType());
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}
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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 List<EpisodeParseResult> Fetch()
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{
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_logger.Debug("Fetching feeds from " + Settings.Name);
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var result = new List<EpisodeParseResult>();
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foreach (var url in Urls)
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{
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try
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{
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_logger.Trace("Downloading RSS " + url);
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var reader = new SyndicationFeedXmlReader(_httpProvider.DownloadStream(url, Credentials));
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var feed = SyndicationFeed.Load(reader).Items;
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foreach (var item in feed)
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{
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try
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{
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var parsedEpisode = ParseFeed(item);
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if (parsedEpisode != null)
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{
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parsedEpisode.NzbUrl = NzbDownloadUrl(item);
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parsedEpisode.Indexer = Name;
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parsedEpisode.NzbTitle = item.Title.Text;
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result.Add(parsedEpisode);
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}
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}
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catch (Exception itemEx)
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{
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_logger.ErrorException("An error occurred while processing feed item", itemEx);
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}
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}
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}
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catch (Exception feedEx)
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{
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_logger.ErrorException("An error occurred while processing feed", feedEx);
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}
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}
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_logger.Info("Finished processing feeds from " + Settings.Name);
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return result;
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}
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/// <summary>
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/// Parses the RSS feed item
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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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public EpisodeParseResult ParseFeed(SyndicationItem item)
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{
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var episodeParseResult = Parser.ParseEpisodeInfo(item.Title.Text);
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return CustomParser(item, episodeParseResult);
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}
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/// <summary>
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/// This method can be overwritten to provide indexer specific info parsing
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/// </summary>
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/// <param name="item">RSS item that needs to be parsed</param>
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/// <param name="currentResult">Result of the built in parse function.</param>
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/// <returns></returns>
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protected virtual EpisodeParseResult CustomParser(SyndicationItem item, EpisodeParseResult currentResult)
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{
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return currentResult;
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}
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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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}
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} |