New: Option to treat downloads with non-media extensions as failed

Closes #7369

src/NzbDrone.Core.Test/IndexerTests/SeedConfigProviderFixture.cs

@@ -1,8 +1,8 @@
 using System;
+using System.Collections.Generic;
 using FluentAssertions;
 using Moq;
 using NUnit.Framework;
-using NzbDrone.Core.Datastore;
 using NzbDrone.Core.Indexers;
 using NzbDrone.Core.Indexers.Torznab;
 using NzbDrone.Core.Parser.Model;
@@ -16,9 +16,9 @@ namespace NzbDrone.Core.Test.IndexerTests
         [Test]
         public void should_not_return_config_for_non_existent_indexer()
         {
-            Mocker.GetMock<IIndexerFactory>()
-                  .Setup(v => v.Get(It.IsAny<int>()))
-                  .Throws(new ModelNotFoundException(typeof(IndexerDefinition), 0));
+            Mocker.GetMock<ICachedIndexerSettingsProvider>()
+                  .Setup(v => v.GetSettings(It.IsAny<int>()))
+                  .Returns<CachedIndexerSettings>(null);
 
             var result = Subject.GetSeedConfiguration(new RemoteEpisode
             {
@@ -38,11 +38,12 @@ namespace NzbDrone.Core.Test.IndexerTests
             var settings = new TorznabSettings();
             settings.SeedCriteria.SeasonPackSeedTime = 10;
 
-            Mocker.GetMock<IIndexerFactory>()
-                     .Setup(v => v.Get(It.IsAny<int>()))
-                     .Returns(new IndexerDefinition
+            Mocker.GetMock<ICachedIndexerSettingsProvider>()
+                     .Setup(v => v.GetSettings(It.IsAny<int>()))
+                     .Returns(new CachedIndexerSettings
                      {
-                         Settings = settings
+                         FailDownloads = new HashSet<FailDownloads> { FailDownloads.Executables },
+                         SeedCriteriaSettings = settings.SeedCriteria
                      });
 
             var result = Subject.GetSeedConfiguration(new RemoteEpisode

src/NzbDrone.Core.Test/IndexerTests/TestIndexerSettings.cs

@@ -15,5 +15,6 @@ namespace NzbDrone.Core.Test.IndexerTests
         public string BaseUrl { get; set; }
 
         public IEnumerable<int> MultiLanguages { get; set; }
+        public IEnumerable<int> FailDownloads { get; set; }
     }
 }

src/NzbDrone.Core/Download/CompletedDownloadService.cs

@@ -35,6 +35,7 @@ namespace NzbDrone.Core.Download
         private readonly ITrackedDownloadAlreadyImported _trackedDownloadAlreadyImported;
         private readonly IEpisodeService _episodeService;
         private readonly IMediaFileService _mediaFileService;
+        private readonly IRejectedImportService _rejectedImportService;
         private readonly Logger _logger;
 
         public CompletedDownloadService(IEventAggregator eventAggregator,
@@ -46,6 +47,7 @@ namespace NzbDrone.Core.Download
                                         ITrackedDownloadAlreadyImported trackedDownloadAlreadyImported,
                                         IEpisodeService episodeService,
                                         IMediaFileService mediaFileService,
+                                        IRejectedImportService rejectedImportService,
                                         Logger logger)
         {
             _eventAggregator = eventAggregator;
@@ -57,6 +59,7 @@ namespace NzbDrone.Core.Download
             _trackedDownloadAlreadyImported = trackedDownloadAlreadyImported;
             _episodeService = episodeService;
             _mediaFileService = mediaFileService;
+            _rejectedImportService = rejectedImportService;
             _logger = logger;
         }
 
@@ -165,10 +168,8 @@ namespace NzbDrone.Core.Download
             {
                 var firstResult = importResults.First();
 
-                if (firstResult.Result == ImportResultType.Rejected && firstResult.ImportDecision.LocalEpisode == null)
+                if (_rejectedImportService.Process(trackedDownload, firstResult))
                 {
-                    trackedDownload.Warn(new TrackedDownloadStatusMessage(firstResult.Errors.First(), new List<string>()));
-
                     return;
                 }
             }

src/NzbDrone.Core/Download/DownloadProcessingService.cs

@@ -55,14 +55,18 @@ namespace NzbDrone.Core.Download
             {
                 try
                 {
+                    // Process completed items followed by failed, this allows failed imports to have
+                    // their state changed and be processed immediately instead of the next execution.
+
+                    if (enableCompletedDownloadHandling && trackedDownload.State == TrackedDownloadState.ImportPending)
+                    {
+                        _completedDownloadService.Import(trackedDownload);
+                    }
+
                     if (trackedDownload.State == TrackedDownloadState.FailedPending)
                     {
                         _failedDownloadService.ProcessFailed(trackedDownload);
                     }
-                    else if (enableCompletedDownloadHandling && trackedDownload.State == TrackedDownloadState.ImportPending)
-                    {
-                        _completedDownloadService.Import(trackedDownload);
-                    }
                 }
                 catch (Exception e)
                 {

src/NzbDrone.Core/Download/RejectedImportService.cs

@@ -0,0 +1,50 @@
+using System.Collections.Generic;
+using System.Linq;
+using NzbDrone.Core.Download.TrackedDownloads;
+using NzbDrone.Core.Indexers;
+using NzbDrone.Core.MediaFiles.EpisodeImport;
+
+namespace NzbDrone.Core.Download;
+
+public interface IRejectedImportService
+{
+    bool Process(TrackedDownload trackedDownload, ImportResult importResult);
+}
+
+public class RejectedImportService : IRejectedImportService
+{
+    private readonly ICachedIndexerSettingsProvider _cachedIndexerSettingsProvider;
+
+    public RejectedImportService(ICachedIndexerSettingsProvider cachedIndexerSettingsProvider)
+    {
+        _cachedIndexerSettingsProvider = cachedIndexerSettingsProvider;
+    }
+
+    public bool Process(TrackedDownload trackedDownload, ImportResult importResult)
+    {
+        if (importResult.Result != ImportResultType.Rejected || importResult.ImportDecision.LocalEpisode != null)
+        {
+            return false;
+        }
+
+        var indexerSettings = _cachedIndexerSettingsProvider.GetSettings(trackedDownload.RemoteEpisode.Release.IndexerId);
+        var rejectionReason = importResult.ImportDecision.Rejections.FirstOrDefault()?.Reason;
+
+        if (rejectionReason == ImportRejectionReason.DangerousFile &&
+            indexerSettings.FailDownloads.Contains(FailDownloads.PotentiallyDangerous))
+        {
+            trackedDownload.Fail();
+        }
+        else if (rejectionReason == ImportRejectionReason.ExecutableFile &&
+            indexerSettings.FailDownloads.Contains(FailDownloads.Executables))
+        {
+            trackedDownload.Fail();
+        }
+        else
+        {
+            trackedDownload.Warn(new TrackedDownloadStatusMessage(importResult.Errors.First(), new List<string>()));
+        }
+
+        return true;
+    }
+}

src/NzbDrone.Core/Download/TrackedDownloads/TrackedDownload.cs

@@ -35,6 +35,12 @@ namespace NzbDrone.Core.Download.TrackedDownloads
             Status = TrackedDownloadStatus.Warning;
             StatusMessages = statusMessages;
         }
+
+        public void Fail()
+        {
+            Status = TrackedDownloadStatus.Error;
+            State = TrackedDownloadState.FailedPending;
+        }
     }
 
     public enum TrackedDownloadState

src/NzbDrone.Core/Download/TrackedDownloads/TrackedDownloadService.cs

@@ -166,6 +166,11 @@ namespace NzbDrone.Core.Download.TrackedDownloads
                         {
                             trackedDownload.RemoteEpisode.Release.IndexerFlags = flags;
                         }
+
+                        if (downloadHistory != null)
+                        {
+                            trackedDownload.RemoteEpisode.Release.IndexerId = downloadHistory.IndexerId;
+                        }
                     }
                 }
 

src/NzbDrone.Core/Indexers/BroadcastheNet/BroadcastheNetSettings.cs

@@ -28,6 +28,7 @@ namespace NzbDrone.Core.Indexers.BroadcastheNet
             BaseUrl = "https://api.broadcasthe.net/";
             MinimumSeeders = IndexerDefaults.MINIMUM_SEEDERS;
             MultiLanguages = Array.Empty<int>();
+            FailDownloads = Array.Empty<int>();
         }
 
         [FieldDefinition(0, Label = "IndexerSettingsApiUrl", Advanced = true, HelpText = "IndexerSettingsApiUrlHelpText")]
@@ -48,6 +49,9 @@ namespace NzbDrone.Core.Indexers.BroadcastheNet
         [FieldDefinition(5, Type = FieldType.Select, SelectOptions = typeof(RealLanguageFieldConverter), Label = "IndexerSettingsMultiLanguageRelease", HelpText = "IndexerSettingsMultiLanguageReleaseHelpText", Advanced = true)]
         public IEnumerable<int> MultiLanguages { get; set; }
 
+        [FieldDefinition(6, Type = FieldType.Select, SelectOptions = typeof(FailDownloads), Label = "IndexerSettingsFailDownloads", HelpText = "IndexerSettingsFailDownloadsHelpText", Advanced = true)]
+        public IEnumerable<int> FailDownloads { get; set; }
+
         public NzbDroneValidationResult Validate()
         {
             return new NzbDroneValidationResult(Validator.Validate(this));

src/NzbDrone.Core/Indexers/CachedIndexerSettingsProvider.cs

@@ -0,0 +1,69 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using NzbDrone.Common.Cache;
+using NzbDrone.Core.Messaging.Events;
+using NzbDrone.Core.ThingiProvider.Events;
+
+namespace NzbDrone.Core.Indexers;
+
+public interface ICachedIndexerSettingsProvider
+{
+    CachedIndexerSettings GetSettings(int indexerId);
+}
+
+public class CachedIndexerSettingsProvider : ICachedIndexerSettingsProvider, IHandle<ProviderUpdatedEvent<IIndexer>>
+{
+    private readonly IIndexerFactory _indexerFactory;
+    private readonly ICached<CachedIndexerSettings> _cache;
+
+    public CachedIndexerSettingsProvider(IIndexerFactory indexerFactory, ICacheManager cacheManager)
+    {
+        _indexerFactory = indexerFactory;
+        _cache = cacheManager.GetRollingCache<CachedIndexerSettings>(GetType(), "settingsByIndexer", TimeSpan.FromHours(1));
+    }
+
+    public CachedIndexerSettings GetSettings(int indexerId)
+    {
+        if (indexerId == 0)
+        {
+            return null;
+        }
+
+        return _cache.Get(indexerId.ToString(), () => FetchIndexerSettings(indexerId));
+    }
+
+    private CachedIndexerSettings FetchIndexerSettings(int indexerId)
+    {
+        var indexer = _indexerFactory.Get(indexerId);
+        var indexerSettings = indexer.Settings as IIndexerSettings;
+
+        if (indexerSettings == null)
+        {
+            return null;
+        }
+
+        var settings = new CachedIndexerSettings
+        {
+            FailDownloads = indexerSettings.FailDownloads.Select(f => (FailDownloads)f).ToHashSet()
+        };
+
+        if (indexer.Settings is ITorrentIndexerSettings torrentIndexerSettings)
+        {
+            settings.SeedCriteriaSettings = torrentIndexerSettings.SeedCriteria;
+        }
+
+        return settings;
+    }
+
+    public void Handle(ProviderUpdatedEvent<IIndexer> message)
+    {
+        _cache.Clear();
+    }
+}
+
+public class CachedIndexerSettings
+{
+    public HashSet<FailDownloads> FailDownloads { get; set; }
+    public SeedCriteriaSettings SeedCriteriaSettings { get; set; }
+}

src/NzbDrone.Core/Indexers/FailDownloads.cs

@@ -0,0 +1,12 @@
+using NzbDrone.Core.Annotations;
+
+namespace NzbDrone.Core.Indexers;
+
+public enum FailDownloads
+{
+    [FieldOption(Label = "Executables")]
+    Executables = 0,
+
+    [FieldOption(Label = "Potentially Dangerous")]
+    PotentiallyDangerous = 1
+}

src/NzbDrone.Core/Indexers/Fanzub/FanzubSettings.cs

@@ -24,6 +24,7 @@ namespace NzbDrone.Core.Indexers.Fanzub
         {
             BaseUrl = "http://fanzub.com/rss/";
             MultiLanguages = Array.Empty<int>();
+            FailDownloads = Array.Empty<int>();
         }
 
         [FieldDefinition(0, Label = "IndexerSettingsRssUrl", HelpText = "IndexerSettingsRssUrlHelpText")]
@@ -36,6 +37,9 @@ namespace NzbDrone.Core.Indexers.Fanzub
         [FieldDefinition(2, Type = FieldType.Select, SelectOptions = typeof(RealLanguageFieldConverter), Label = "IndexerSettingsMultiLanguageRelease", HelpText = "IndexerSettingsMultiLanguageReleaseHelpText", Advanced = true)]
         public IEnumerable<int> MultiLanguages { get; set; }
 
+        [FieldDefinition(3, Type = FieldType.Select, SelectOptions = typeof(FailDownloads), Label = "IndexerSettingsFailDownloads", HelpText = "IndexerSettingsFailDownloadsHelpText", Advanced = true)]
+        public IEnumerable<int> FailDownloads { get; set; }
+
         public NzbDroneValidationResult Validate()
         {
             return new NzbDroneValidationResult(Validator.Validate(this));

src/NzbDrone.Core/Indexers/FileList/FileListSettings.cs

@@ -38,6 +38,7 @@ namespace NzbDrone.Core.Indexers.FileList
 
             AnimeCategories = Array.Empty<int>();
             MultiLanguages = Array.Empty<int>();
+            FailDownloads = Array.Empty<int>();
         }
 
         [FieldDefinition(0, Label = "Username", Privacy = PrivacyLevel.UserName)]
@@ -67,6 +68,9 @@ namespace NzbDrone.Core.Indexers.FileList
         [FieldDefinition(8, Type = FieldType.Checkbox, Label = "IndexerSettingsRejectBlocklistedTorrentHashes", HelpText = "IndexerSettingsRejectBlocklistedTorrentHashesHelpText", Advanced = true)]
         public bool RejectBlocklistedTorrentHashesWhileGrabbing { get; set; }
 
+        [FieldDefinition(9, Type = FieldType.Select, SelectOptions = typeof(FailDownloads), Label = "IndexerSettingsFailDownloads", HelpText = "IndexerSettingsFailDownloadsHelpText", Advanced = true)]
+        public IEnumerable<int> FailDownloads { get; set; }
+
         public NzbDroneValidationResult Validate()
         {
             return new NzbDroneValidationResult(Validator.Validate(this));

src/NzbDrone.Core/Indexers/HDBits/HDBitsSettings.cs

@@ -32,6 +32,7 @@ namespace NzbDrone.Core.Indexers.HDBits
             Codecs = Array.Empty<int>();
             Mediums = Array.Empty<int>();
             MultiLanguages = Array.Empty<int>();
+            FailDownloads = Array.Empty<int>();
         }
 
         [FieldDefinition(0, Label = "IndexerSettingsApiUrl", Advanced = true, HelpText = "IndexerSettingsApiUrlHelpText")]
@@ -64,6 +65,9 @@ namespace NzbDrone.Core.Indexers.HDBits
         [FieldDefinition(9, Type = FieldType.Select, SelectOptions = typeof(RealLanguageFieldConverter), Label = "IndexerSettingsMultiLanguageRelease", HelpText = "IndexerSettingsMultiLanguageReleaseHelpText", Advanced = true)]
         public IEnumerable<int> MultiLanguages { get; set; }
 
+        [FieldDefinition(10, Type = FieldType.Select, SelectOptions = typeof(FailDownloads), Label = "IndexerSettingsFailDownloads", HelpText = "IndexerSettingsFailDownloadsHelpText", Advanced = true)]
+        public IEnumerable<int> FailDownloads { get; set; }
+
         public NzbDroneValidationResult Validate()
         {
             return new NzbDroneValidationResult(Validator.Validate(this));

src/NzbDrone.Core/Indexers/IIndexerSettings.cs

@@ -8,5 +8,7 @@ namespace NzbDrone.Core.Indexers
         string BaseUrl { get; set; }
 
         IEnumerable<int> MultiLanguages { get; set; }
+
+        IEnumerable<int> FailDownloads { get; set; }
     }
 }

src/NzbDrone.Core/Indexers/IPTorrents/IPTorrentsSettings.cs

@@ -34,6 +34,7 @@ namespace NzbDrone.Core.Indexers.IPTorrents
         {
             MinimumSeeders = IndexerDefaults.MINIMUM_SEEDERS;
             MultiLanguages = Array.Empty<int>();
+            FailDownloads = Array.Empty<int>();
         }
 
         [FieldDefinition(0, Label = "IndexerIPTorrentsSettingsFeedUrl", HelpText = "IndexerIPTorrentsSettingsFeedUrlHelpText")]
@@ -51,6 +52,9 @@ namespace NzbDrone.Core.Indexers.IPTorrents
         [FieldDefinition(4, Type = FieldType.Select, SelectOptions = typeof(RealLanguageFieldConverter), Label = "IndexerSettingsMultiLanguageRelease", HelpText = "IndexerSettingsMultiLanguageReleaseHelpText", Advanced = true)]
         public IEnumerable<int> MultiLanguages { get; set; }
 
+        [FieldDefinition(5, Type = FieldType.Select, SelectOptions = typeof(FailDownloads), Label = "IndexerSettingsFailDownloads", HelpText = "IndexerSettingsFailDownloadsHelpText", Advanced = true)]
+        public IEnumerable<int> FailDownloads { get; set; }
+
         public NzbDroneValidationResult Validate()
         {
             return new NzbDroneValidationResult(Validator.Validate(this));

src/NzbDrone.Core/Indexers/Newznab/NewznabSettings.cs

@@ -59,6 +59,7 @@ namespace NzbDrone.Core.Indexers.Newznab
             Categories = new[] { 5030, 5040 };
             AnimeCategories = Enumerable.Empty<int>();
             MultiLanguages = Array.Empty<int>();
+            FailDownloads = Array.Empty<int>();
         }
 
         [FieldDefinition(0, Label = "URL")]
@@ -86,6 +87,9 @@ namespace NzbDrone.Core.Indexers.Newznab
         [FieldDefinition(7, Type = FieldType.Select, SelectOptions = typeof(RealLanguageFieldConverter), Label = "IndexerSettingsMultiLanguageRelease", HelpText = "IndexerSettingsMultiLanguageReleaseHelpText", Advanced = true)]
         public IEnumerable<int> MultiLanguages { get; set; }
 
+        [FieldDefinition(8, Type = FieldType.Select, SelectOptions = typeof(FailDownloads), Label = "IndexerSettingsFailDownloads", HelpText = "IndexerSettingsFailDownloadsHelpText", Advanced = true)]
+        public IEnumerable<int> FailDownloads { get; set; }
+
         // Field 8 is used by TorznabSettings MinimumSeeders
         // If you need to add another field here, update TorznabSettings as well and this comment
 

src/NzbDrone.Core/Indexers/Nyaa/NyaaSettings.cs

@@ -30,6 +30,7 @@ namespace NzbDrone.Core.Indexers.Nyaa
             AdditionalParameters = "&cats=1_0&filter=1";
             MinimumSeeders = IndexerDefaults.MINIMUM_SEEDERS;
             MultiLanguages = Array.Empty<int>();
+            FailDownloads = Array.Empty<int>();
         }
 
         [FieldDefinition(0, Label = "IndexerSettingsWebsiteUrl")]
@@ -53,6 +54,9 @@ namespace NzbDrone.Core.Indexers.Nyaa
         [FieldDefinition(6, Type = FieldType.Select, SelectOptions = typeof(RealLanguageFieldConverter), Label = "IndexerSettingsMultiLanguageRelease", HelpText = "IndexerSettingsMultiLanguageReleaseHelpText", Advanced = true)]
         public IEnumerable<int> MultiLanguages { get; set; }
 
+        [FieldDefinition(7, Type = FieldType.Select, SelectOptions = typeof(FailDownloads), Label = "IndexerSettingsFailDownloads", HelpText = "IndexerSettingsFailDownloadsHelpText", Advanced = true)]
+        public IEnumerable<int> FailDownloads { get; set; }
+
         public NzbDroneValidationResult Validate()
         {
             return new NzbDroneValidationResult(Validator.Validate(this));

src/NzbDrone.Core/Indexers/SeedConfigProvider.cs

@@ -1,10 +1,6 @@
 using System;
-using NzbDrone.Common.Cache;
-using NzbDrone.Core.Datastore;
 using NzbDrone.Core.Download.Clients;
-using NzbDrone.Core.Messaging.Events;
 using NzbDrone.Core.Parser.Model;
-using NzbDrone.Core.ThingiProvider.Events;
 
 namespace NzbDrone.Core.Indexers
 {
@@ -14,15 +10,13 @@ namespace NzbDrone.Core.Indexers
         TorrentSeedConfiguration GetSeedConfiguration(int indexerId, bool fullSeason);
     }
 
-    public class SeedConfigProvider : ISeedConfigProvider, IHandle<ProviderUpdatedEvent<IIndexer>>
+    public class SeedConfigProvider : ISeedConfigProvider
     {
-        private readonly IIndexerFactory _indexerFactory;
-        private readonly ICached<SeedCriteriaSettings> _cache;
+        private readonly ICachedIndexerSettingsProvider _cachedIndexerSettingsProvider;
 
-        public SeedConfigProvider(IIndexerFactory indexerFactory, ICacheManager cacheManager)
+        public SeedConfigProvider(ICachedIndexerSettingsProvider cachedIndexerSettingsProvider)
         {
-            _indexerFactory = indexerFactory;
-            _cache = cacheManager.GetRollingCache<SeedCriteriaSettings>(GetType(), "criteriaByIndexer", TimeSpan.FromHours(1));
+            _cachedIndexerSettingsProvider = cachedIndexerSettingsProvider;
         }
 
         public TorrentSeedConfiguration GetSeedConfiguration(RemoteEpisode remoteEpisode)
@@ -47,7 +41,8 @@ namespace NzbDrone.Core.Indexers
                 return null;
             }
 
-            var seedCriteria = _cache.Get(indexerId.ToString(), () => FetchSeedCriteria(indexerId));
+            var settings = _cachedIndexerSettingsProvider.GetSettings(indexerId);
+            var seedCriteria = settings?.SeedCriteriaSettings;
 
             if (seedCriteria == null)
             {
@@ -67,25 +62,5 @@ namespace NzbDrone.Core.Indexers
 
             return seedConfig;
         }
-
-        private SeedCriteriaSettings FetchSeedCriteria(int indexerId)
-        {
-            try
-            {
-                var indexer = _indexerFactory.Get(indexerId);
-                var torrentIndexerSettings = indexer.Settings as ITorrentIndexerSettings;
-
-                return torrentIndexerSettings?.SeedCriteria;
-            }
-            catch (ModelNotFoundException)
-            {
-                return null;
-            }
-        }
-
-        public void Handle(ProviderUpdatedEvent<IIndexer> message)
-        {
-            _cache.Clear();
-        }
     }
 }

src/NzbDrone.Core/Indexers/TorrentRss/TorrentRssIndexerSettings.cs

@@ -28,6 +28,7 @@ namespace NzbDrone.Core.Indexers.TorrentRss
             AllowZeroSize = false;
             MinimumSeeders = IndexerDefaults.MINIMUM_SEEDERS;
             MultiLanguages = Array.Empty<int>();
+            FailDownloads = Array.Empty<int>();
         }
 
         [FieldDefinition(0, Label = "IndexerSettingsRssUrl")]
@@ -51,6 +52,9 @@ namespace NzbDrone.Core.Indexers.TorrentRss
         [FieldDefinition(6, Type = FieldType.Select, SelectOptions = typeof(RealLanguageFieldConverter), Label = "IndexerSettingsMultiLanguageRelease", HelpText = "IndexerSettingsMultiLanguageReleaseHelpText", Advanced = true)]
         public IEnumerable<int> MultiLanguages { get; set; }
 
+        [FieldDefinition(7, Type = FieldType.Select, SelectOptions = typeof(FailDownloads), Label = "IndexerSettingsFailDownloads", HelpText = "IndexerSettingsFailDownloadsHelpText", Advanced = true)]
+        public IEnumerable<int> FailDownloads { get; set; }
+
         public NzbDroneValidationResult Validate()
         {
             return new NzbDroneValidationResult(Validator.Validate(this));

src/NzbDrone.Core/Indexers/Torrentleech/TorrentleechSettings.cs

@@ -28,6 +28,7 @@ namespace NzbDrone.Core.Indexers.Torrentleech
             BaseUrl = "http://rss.torrentleech.org";
             MinimumSeeders = IndexerDefaults.MINIMUM_SEEDERS;
             MultiLanguages = Array.Empty<int>();
+            FailDownloads = Array.Empty<int>();
         }
 
         [FieldDefinition(0, Label = "IndexerSettingsWebsiteUrl")]
@@ -48,6 +49,9 @@ namespace NzbDrone.Core.Indexers.Torrentleech
         [FieldDefinition(5, Type = FieldType.Select, SelectOptions = typeof(RealLanguageFieldConverter), Label = "IndexerSettingsMultiLanguageRelease", HelpText = "IndexerSettingsMultiLanguageReleaseHelpText", Advanced = true)]
         public IEnumerable<int> MultiLanguages { get; set; }
 
+        [FieldDefinition(6, Type = FieldType.Select, SelectOptions = typeof(FailDownloads), Label = "IndexerSettingsFailDownloads", HelpText = "IndexerSettingsFailDownloadsHelpText", Advanced = true)]
+        public IEnumerable<int> FailDownloads { get; set; }
+
         public NzbDroneValidationResult Validate()
         {
             return new NzbDroneValidationResult(Validator.Validate(this));

src/NzbDrone.Core/Indexers/Torznab/TorznabSettings.cs

@@ -52,13 +52,13 @@ namespace NzbDrone.Core.Indexers.Torznab
             MinimumSeeders = IndexerDefaults.MINIMUM_SEEDERS;
         }
 
-        [FieldDefinition(8, Type = FieldType.Number, Label = "IndexerSettingsMinimumSeeders", HelpText = "IndexerSettingsMinimumSeedersHelpText", Advanced = true)]
+        [FieldDefinition(9, Type = FieldType.Number, Label = "IndexerSettingsMinimumSeeders", HelpText = "IndexerSettingsMinimumSeedersHelpText", Advanced = true)]
         public int MinimumSeeders { get; set; }
 
-        [FieldDefinition(9)]
+        [FieldDefinition(10)]
         public SeedCriteriaSettings SeedCriteria { get; set; } = new ();
 
-        [FieldDefinition(10, Type = FieldType.Checkbox, Label = "IndexerSettingsRejectBlocklistedTorrentHashes", HelpText = "IndexerSettingsRejectBlocklistedTorrentHashesHelpText", Advanced = true)]
+        [FieldDefinition(11, Type = FieldType.Checkbox, Label = "IndexerSettingsRejectBlocklistedTorrentHashes", HelpText = "IndexerSettingsRejectBlocklistedTorrentHashesHelpText", Advanced = true)]
         public bool RejectBlocklistedTorrentHashesWhileGrabbing { get; set; }
 
         public override NzbDroneValidationResult Validate()

src/NzbDrone.Core/Localization/Core/en.json

@@ -998,6 +998,8 @@
   "IndexerSettingsCategoriesHelpText": "Drop down list, leave blank to disable standard/daily shows",
   "IndexerSettingsCookie": "Cookie",
   "IndexerSettingsCookieHelpText": "If your site requires a login cookie to access the rss, you'll have to retrieve it via a browser.",
+  "IndexerSettingsFailDownloads": "Fail Downloads",
+  "IndexerSettingsFailDownloadsHelpText": "While processing completed downloads {appName} will treat selected errors preventing importing as failed downloads.",
   "IndexerSettingsMinimumSeeders": "Minimum Seeders",
   "IndexerSettingsMinimumSeedersHelpText": "Minimum number of seeders required.",
   "IndexerSettingsMultiLanguageRelease": "Multi Languages",

src/NzbDrone.Core/MediaFiles/DownloadedEpisodesImportService.cs

@@ -318,6 +318,11 @@ namespace NzbDrone.Core.MediaFiles
         {
             var files = _diskProvider.GetFiles(folder, true);
 
+            if (files.Any(file => FileExtensions.DangerousExtensions.Contains(Path.GetExtension(file))))
+            {
+                return RejectionResult(ImportRejectionReason.DangerousFile, "Caution: Found potentially dangerous file");
+            }
+
             if (files.Any(file => FileExtensions.ExecutableExtensions.Contains(Path.GetExtension(file))))
             {
                 return RejectionResult(ImportRejectionReason.ExecutableFile, "Caution: Found executable file");

src/NzbDrone.Core/MediaFiles/EpisodeImport/ImportRejectionReason.cs

@@ -5,6 +5,7 @@ public enum ImportRejectionReason
     Unknown,
     FileLocked,
     UnknownSeries,
+    DangerousFile,
     ExecutableFile,
     ArchiveFile,
     SeriesFolder,

src/NzbDrone.Core/MediaFiles/FileExtensions.cs

@@ -18,19 +18,27 @@ namespace NzbDrone.Core.MediaFiles
             ".tb2",
             ".tbz2",
             ".tgz",
-            ".zip",
+            ".zip"
+        };
+
+        private static List<string> _dangerousExtensions = new List<string>
+        {
+            ".lnk",
+            ".ps1",
+            ".vbs",
             ".zipx"
         };
 
         private static List<string> _executableExtensions = new List<string>
         {
-            ".exe",
             ".bat",
             ".cmd",
+            ".exe",
             ".sh"
         };
 
         public static HashSet<string> ArchiveExtensions => new HashSet<string>(_archiveExtensions, StringComparer.OrdinalIgnoreCase);
+        public static HashSet<string> DangerousExtensions => new HashSet<string>(_dangerousExtensions, StringComparer.OrdinalIgnoreCase);
         public static HashSet<string> ExecutableExtensions => new HashSet<string>(_executableExtensions, StringComparer.OrdinalIgnoreCase);
     }
 }