New: Removing rtorrent downloads when seeding criteria have been met

src/NzbDrone.Core/Download/Clients/rTorrent/RTorrent.cs

@@ -4,6 +4,7 @@ using System.Collections.Generic;
 using System.Threading;
 using NzbDrone.Common.Disk;
 using NzbDrone.Common.Extensions;
+using NzbDrone.Common.EnvironmentInfo;
 using NzbDrone.Common.Http;
 using NzbDrone.Core.Configuration;
 using NzbDrone.Core.MediaFiles.TorrentInfo;
@@ -22,6 +23,8 @@ namespace NzbDrone.Core.Download.Clients.RTorrent
     {
         private readonly IRTorrentProxy _proxy;
         private readonly IRTorrentDirectoryValidator _rTorrentDirectoryValidator;
+        private readonly IDownloadSeedConfigProvider _downloadSeedConfigProvider;
+        private readonly string _imported_view = String.Concat(BuildInfo.AppName.ToLower(), "_imported");
 
         public RTorrent(IRTorrentProxy proxy,
                         ITorrentFileInfoReader torrentFileInfoReader,
@@ -29,17 +32,19 @@ namespace NzbDrone.Core.Download.Clients.RTorrent
                         IConfigService configService,
                         IDiskProvider diskProvider,
                         IRemotePathMappingService remotePathMappingService,
+                        IDownloadSeedConfigProvider downloadSeedConfigProvider,
                         IRTorrentDirectoryValidator rTorrentDirectoryValidator,
                         Logger logger)
             : base(torrentFileInfoReader, httpClient, configService, diskProvider, remotePathMappingService, logger)
         {
             _proxy = proxy;
             _rTorrentDirectoryValidator = rTorrentDirectoryValidator;
+            _downloadSeedConfigProvider = downloadSeedConfigProvider;
         }
 
         public override void MarkItemAsImported(DownloadClientItem downloadClientItem)
         {
-            // set post-import category
+            // Set post-import label
             if (Settings.TvImportedCategory.IsNotNullOrWhiteSpace() &&
                 Settings.TvImportedCategory != Settings.TvCategory)
             {
@@ -53,6 +58,17 @@ namespace NzbDrone.Core.Download.Clients.RTorrent
                         Settings.TvImportedCategory, downloadClientItem.Title);
                 }
             }
+
+            // Set post-import view
+            try
+            {
+                _proxy.PushTorrentUniqueView(downloadClientItem.DownloadId.ToLower(), _imported_view, Settings);
+            }
+            catch (Exception ex)
+            {
+                _logger.Warn(ex, "Failed to set torrent post-import view \"{0}\" for {1} in rTorrent.",
+                    _imported_view, downloadClientItem.Title);
+            }
         }
 
         protected override string AddFromMagnetLink(RemoteEpisode remoteEpisode, string hash, string magnetLink)
@@ -95,7 +111,7 @@ namespace NzbDrone.Core.Download.Clients.RTorrent
 
         public override string Name => "rTorrent";
 
-        public override ProviderMessage Message => new ProviderMessage("Sonarr is unable to remove torrents that have finished seeding when using rTorrent", ProviderMessageType.Warning);
+        public override ProviderMessage Message => new ProviderMessage($"Sonarr will handle automatic removal of torrents based on the current seed criteria in Settings->Indexers. After importing it will also set \"{_imported_view}\" as an rTorrent view, which can be used in rTorrent scripts to customize behavior.", ProviderMessageType.Info);
 
         public override IEnumerable<DownloadClientItem> GetItems()
         {
@@ -147,8 +163,16 @@ namespace NzbDrone.Core.Download.Clients.RTorrent
                     item.Status = DownloadItemStatus.Paused;
                 }
 
-                // No stop ratio data is present, so do not delete
+                // Grab cached seedConfig
-                item.CanMoveFiles = item.CanBeRemoved = false;
+                var seedConfig = _downloadSeedConfigProvider.GetSeedConfiguration(torrent.Hash);
+
+                // Check if torrent is finished and if it exceeds cached seedConfig
+                item.CanMoveFiles = item.CanBeRemoved =
+                    torrent.IsFinished &&
+                    (
+                        (torrent.Ratio / 1000.0) >= seedConfig.Ratio ||
+                        (DateTimeOffset.Now - DateTimeOffset.FromUnixTimeSeconds(torrent.FinishedTime)) >= seedConfig.SeedTime
+                    );
 
                 items.Add(item);
             }

src/NzbDrone.Core/Download/Clients/rTorrent/RTorrentProxy.cs

@@ -20,6 +20,7 @@ namespace NzbDrone.Core.Download.Clients.RTorrent
         void RemoveTorrent(string hash, RTorrentSettings settings);
         void SetTorrentLabel(string hash, string label, RTorrentSettings settings);
         bool HasHashTorrent(string hash, RTorrentSettings settings);
+        void PushTorrentUniqueView(string hash, string view, RTorrentSettings settings);
     }
 
     public interface IRTorrent : IXmlRpcProxy
@@ -48,6 +49,9 @@ namespace NzbDrone.Core.Download.Clients.RTorrent
         [XmlRpcMethod("d.custom1.set")]
         string SetLabel(string hash, string label);
 
+        [XmlRpcMethod("d.views.push_back_unique")]
+        int PushUniqueView(string hash, string view);
+
         [XmlRpcMethod("system.client_version")]
         string GetVersion();
     }
@@ -87,7 +91,8 @@ namespace NzbDrone.Core.Download.Clients.RTorrent
                     "d.ratio=", // long
                     "d.is_open=", // long
                     "d.is_active=", // long
-                    "d.complete=") //long
+                    "d.complete=", // long
+                    "d.timestamp.finished=") // long (unix timestamp)
             );
 
             var items = new List<RTorrentTorrent>();
@@ -108,6 +113,7 @@ namespace NzbDrone.Core.Download.Clients.RTorrent
                 item.IsOpen = Convert.ToBoolean((long)torrent[8]);
                 item.IsActive = Convert.ToBoolean((long)torrent[9]);
                 item.IsFinished = Convert.ToBoolean((long)torrent[10]);
+                item.FinishedTime = (long)torrent[11];
 
                 items.Add(item);
             }
@@ -174,6 +180,18 @@ namespace NzbDrone.Core.Download.Clients.RTorrent
             }
         }
 
+        public void PushTorrentUniqueView(string hash, string view, RTorrentSettings settings)
+        {
+            _logger.Debug("Executing remote method: d.views.push_back_unique");
+
+            var client = BuildClient(settings);
+            var response = ExecuteRequest(() => client.PushUniqueView(hash, view));
+            if (response != 0)
+            {
+                throw new DownloadClientException("Could not push unique view {0} for torrent: {1}.", view, hash);
+            }
+        }
+
         public void RemoveTorrent(string hash, RTorrentSettings settings)
         {
             _logger.Debug("Executing remote method: d.erase");

src/NzbDrone.Core/Download/Clients/rTorrent/RTorrentTorrent.cs

@@ -10,6 +10,7 @@
         public long RemainingSize { get; set; }
         public long DownRate { get; set; }
         public long Ratio { get; set; }
+        public long FinishedTime { get; set; }
         public bool IsFinished { get; set; }
         public bool IsOpen { get; set; }
         public bool IsActive { get; set; }

src/NzbDrone.Core/Download/DownloadSeedConfigProvider.cs

@@ -0,0 +1,84 @@
+using System;
+using NLog;
+using NzbDrone.Common.Cache;
+using NzbDrone.Common.Extensions;
+using NzbDrone.Core.Download.Clients;
+using NzbDrone.Core.Download.History;
+using NzbDrone.Core.Indexers;
+using NzbDrone.Core.Parser.Model;
+
+namespace NzbDrone.Core.Download
+{
+    public interface IDownloadSeedConfigProvider
+    {
+        TorrentSeedConfiguration GetSeedConfiguration(string infoHash);
+    }
+
+    public class DownloadSeedConfigProvider : IDownloadSeedConfigProvider
+    {
+        private readonly Logger _logger;
+        private readonly ISeedConfigProvider _indexerSeedConfigProvider;
+        private readonly IDownloadHistoryService _downloadHistoryService;
+
+        class CachedSeedConfiguration
+        {
+            public int IndexerId { get; set; }
+            public bool FullSeason { get; set; }
+        }
+
+        private readonly ICached<CachedSeedConfiguration> _cacheDownloads;
+
+        public DownloadSeedConfigProvider(IDownloadHistoryService downloadHistoryService, ISeedConfigProvider indexerSeedConfigProvider, ICacheManager cacheManager, Logger logger)
+        {
+            _logger = logger;
+            _indexerSeedConfigProvider = indexerSeedConfigProvider;
+            _downloadHistoryService = downloadHistoryService;
+
+            _cacheDownloads = cacheManager.GetRollingCache<CachedSeedConfiguration>(GetType(), "indexerByHash", TimeSpan.FromHours(1));
+        }
+
+        public TorrentSeedConfiguration GetSeedConfiguration(string infoHash)
+        {
+            if (infoHash.IsNullOrWhiteSpace()) return null;
+
+            infoHash = infoHash.ToUpper();
+
+            var cachedConfig = _cacheDownloads.Get(infoHash, () => FetchIndexer(infoHash));
+
+            if (cachedConfig == null) return null;
+
+            var seedConfig = _indexerSeedConfigProvider.GetSeedConfiguration(cachedConfig.IndexerId, cachedConfig.FullSeason);
+
+            return seedConfig;
+        }
+
+        private CachedSeedConfiguration FetchIndexer(string infoHash)
+        {
+            var historyItem = _downloadHistoryService.GetLatestGrab(infoHash);
+
+            if (historyItem == null)
+            {
+                _logger.Debug("No download history item for infohash {0}, unable to provide seed configuration", infoHash);
+                return null;
+            }
+
+            ParsedEpisodeInfo parsedEpisodeInfo = null;
+            if (historyItem.Release != null)
+            {
+                parsedEpisodeInfo = Parser.Parser.ParseTitle(historyItem.Release.Title);
+            }
+
+            if (parsedEpisodeInfo == null)
+            {
+                _logger.Debug("No parsed title in download history item for infohash {0}, unable to provide seed configuration", infoHash);
+                return null;
+            }
+
+            return new CachedSeedConfiguration
+            {
+                IndexerId = historyItem.IndexerId,
+                FullSeason = parsedEpisodeInfo.FullSeason
+            };
+        }
+    }
+}

src/NzbDrone.Core/Indexers/SeedConfigProvider.cs

@@ -1,9 +1,10 @@
 using System;
 using System.Linq;
 using NzbDrone.Common.Extensions;
+using NzbDrone.Common.Cache;
 using NzbDrone.Core.Datastore;
 using NzbDrone.Core.Download.Clients;
-using NzbDrone.Core.Indexers;
+using NzbDrone.Core.Messaging.Events;
 using NzbDrone.Core.Parser.Model;
 
 namespace NzbDrone.Core.Indexers
@@ -11,15 +12,18 @@ namespace NzbDrone.Core.Indexers
     public interface ISeedConfigProvider
     {
         TorrentSeedConfiguration GetSeedConfiguration(RemoteEpisode release);
+        TorrentSeedConfiguration GetSeedConfiguration(int indexerId, bool fullSeason);
     }
 
-    public class SeedConfigProvider : ISeedConfigProvider
+    public class SeedConfigProvider : ISeedConfigProvider, IHandle<IndexerSettingUpdatedEvent>
     {
         private readonly IIndexerFactory _indexerFactory;
+        private readonly ICached<SeedCriteriaSettings> _cache;
 
-        public SeedConfigProvider(IIndexerFactory indexerFactory)
+        public SeedConfigProvider(IIndexerFactory indexerFactory, ICacheManager cacheManager)
         {
             _indexerFactory = indexerFactory;
+            _cache = cacheManager.GetRollingCache<SeedCriteriaSettings>(GetType(), "criteriaByIndexer", TimeSpan.FromHours(1));
         }
 
         public TorrentSeedConfiguration GetSeedConfiguration(RemoteEpisode remoteEpisode)
@@ -27,33 +31,49 @@ namespace NzbDrone.Core.Indexers
             if (remoteEpisode.Release.DownloadProtocol != DownloadProtocol.Torrent) return null;
             if (remoteEpisode.Release.IndexerId == 0) return null;
 
+            return GetSeedConfiguration(remoteEpisode.Release.IndexerId, remoteEpisode.ParsedEpisodeInfo.FullSeason);
+        }
+
+        public TorrentSeedConfiguration GetSeedConfiguration(int indexerId, bool fullSeason)
+        {
+            if (indexerId == 0) return null;
+
+            var seedCriteria = _cache.Get(indexerId.ToString(), () => FetchSeedCriteria(indexerId));
+
+            if (seedCriteria == null) return null;
+            
+            var seedConfig = new TorrentSeedConfiguration
+            {
+                Ratio = seedCriteria.SeedRatio
+            };
+
+            var seedTime = fullSeason ? seedCriteria.SeasonPackSeedTime : seedCriteria.SeedTime;
+            if (seedTime.HasValue)
+            {
+                seedConfig.SeedTime = TimeSpan.FromMinutes(seedTime.Value);
+            }
+
+            return seedConfig;
+        }
+
+        private SeedCriteriaSettings FetchSeedCriteria(int indexerId)
+        {
             try
             {
-                var indexer = _indexerFactory.Get(remoteEpisode.Release.IndexerId);
+                var indexer = _indexerFactory.Get(indexerId);
                 var torrentIndexerSettings = indexer.Settings as ITorrentIndexerSettings;
 
-                if (torrentIndexerSettings != null && torrentIndexerSettings.SeedCriteria != null)
+                return torrentIndexerSettings?.SeedCriteria;
-                {
-                    var seedConfig = new TorrentSeedConfiguration
-                    {
-                        Ratio = torrentIndexerSettings.SeedCriteria.SeedRatio
-                    };
-
-                    var seedTime = remoteEpisode.ParsedEpisodeInfo.FullSeason ? torrentIndexerSettings.SeedCriteria.SeasonPackSeedTime : torrentIndexerSettings.SeedCriteria.SeedTime;
-                    if (seedTime.HasValue)
-                    {
-                        seedConfig.SeedTime = TimeSpan.FromMinutes(seedTime.Value);
-                    }
-
-                    return seedConfig;
-                }
             }
             catch (ModelNotFoundException)
             {
                 return null;
             }
+        }
 
-            return null;
+        public void Handle(IndexerSettingUpdatedEvent message)
+        {
+            _cache.Clear();
         }
     }
 }