Translate Download Clients on the backend

src/NzbDrone.Api.Test/ClientSchemaTests/SchemaBuilderFixture.cs

@@ -1,6 +1,9 @@
+using System.Collections.Generic;
 using FluentAssertions;
+using Moq;
 using NUnit.Framework;
 using NzbDrone.Core.Annotations;
+using NzbDrone.Core.Localization;
 using NzbDrone.Test.Common;
 using Sonarr.Http.ClientSchema;
 
@@ -9,6 +12,16 @@ namespace NzbDrone.Api.Test.ClientSchemaTests
     [TestFixture]
     public class SchemaBuilderFixture : TestBase
     {
+        [SetUp]
+        public void Setup()
+        {
+            Mocker.GetMock<ILocalizationService>()
+                .Setup(s => s.GetLocalizedString(It.IsAny<string>(), It.IsAny<Dictionary<string, object>>()))
+                .Returns<string, Dictionary<string, object>>((s, d) => s);
+
+            SchemaBuilder.Initialize(Mocker.Container);
+        }
+
         [Test]
         public void should_return_field_for_every_property()
         {

src/NzbDrone.Core.Test/Download/DownloadClientTests/HadoukenTests/HadoukenFixture.cs

@@ -320,7 +320,7 @@ namespace NzbDrone.Core.Test.Download.DownloadClientTests.HadoukenTests
 
             var result = Subject.Test();
 
-            result.Errors.First().ErrorMessage.Should().Be("Old Hadouken client with unsupported API, need 5.1 or higher");
+            result.Errors.Count.Should().Be(1);
         }
     }
 }

src/NzbDrone.Core/Annotations/FieldDefinitionAttribute.cs

@@ -42,6 +42,23 @@ namespace NzbDrone.Core.Annotations
         public string RequestAction { get; set; }
     }
 
+    [AttributeUsage(AttributeTargets.Property, AllowMultiple = true)]
+    public class FieldTokenAttribute : Attribute
+    {
+        public FieldTokenAttribute(TokenField field, string label = "", string token = "", object value = null)
+        {
+            Label = label;
+            Field = field;
+            Token = token;
+            Value = value?.ToString();
+        }
+
+        public string Label { get; set; }
+        public TokenField Field { get; set; }
+        public string Token { get; set; }
+        public string Value { get; set; }
+    }
+
     public class FieldSelectOption
     {
         public int Value { get; set; }
@@ -85,4 +102,11 @@ namespace NzbDrone.Core.Annotations
         ApiKey,
         UserName
     }
+
+    public enum TokenField
+    {
+        Label,
+        HelpText,
+        HelpTextWarning
+    }
 }

src/NzbDrone.Core/Download/Clients/Aria2/Aria2.cs

@@ -8,6 +8,7 @@ using NzbDrone.Common.Disk;
 using NzbDrone.Common.Extensions;
 using NzbDrone.Common.Http;
 using NzbDrone.Core.Configuration;
+using NzbDrone.Core.Localization;
 using NzbDrone.Core.MediaFiles.TorrentInfo;
 using NzbDrone.Core.Parser.Model;
 using NzbDrone.Core.RemotePathMappings;
@@ -27,8 +28,9 @@ namespace NzbDrone.Core.Download.Clients.Aria2
                         IConfigService configService,
                         IDiskProvider diskProvider,
                         IRemotePathMappingService remotePathMappingService,
-                        Logger logger)
+                        Logger logger,
-            : base(torrentFileInfoReader, httpClient, configService, diskProvider, remotePathMappingService, logger)
+                        ILocalizationService localizationService)
+            : base(torrentFileInfoReader, httpClient, configService, diskProvider, remotePathMappingService, logger, localizationService)
         {
             _proxy = proxy;
         }
@@ -233,14 +235,19 @@ namespace NzbDrone.Core.Download.Clients.Aria2
 
                 if (new Version(version) < new Version("1.34.0"))
                 {
-                    return new ValidationFailure(string.Empty, "Aria2 version should be at least 1.34.0. Version reported is {0}", version);
+                    return new ValidationFailure(string.Empty,
+                        _localizationService.GetLocalizedString("DownloadClientValidationErrorVersion",
+                            new Dictionary<string, object>
+                            {
+                                { "clientName", "Aria2" }, { "requiredVersion", "1.34.0" }, { "reportedVersion", version }
+                            }));
                 }
             }
             catch (Exception ex)
             {
                 _logger.Error(ex, "Failed to test Aria2");
 
-                return new NzbDroneValidationFailure("Host", "Unable to connect to Aria2")
+                return new NzbDroneValidationFailure("Host", _localizationService.GetLocalizedString("DownloadClientValidationUnableToConnect", new Dictionary<string, object> { { "clientName", "Aria2" } }))
                 {
                     DetailedDescription = ex.Message
                 };

src/NzbDrone.Core/Download/Clients/Aria2/Aria2Settings.cs

@@ -32,13 +32,13 @@ namespace NzbDrone.Core.Download.Clients.Aria2
         [FieldDefinition(1, Label = "Port", Type = FieldType.Number)]
         public int Port { get; set; }
 
-        [FieldDefinition(2, Label = "XML RPC Path", Type = FieldType.Textbox)]
+        [FieldDefinition(2, Label = "XmlRpcPath", Type = FieldType.Textbox)]
         public string RpcPath { get; set; }
 
-        [FieldDefinition(3, Label = "Use SSL", Type = FieldType.Checkbox)]
+        [FieldDefinition(3, Label = "UseSsl", Type = FieldType.Checkbox)]
         public bool UseSsl { get; set; }
 
-        [FieldDefinition(4, Label = "Secret token", Type = FieldType.Password, Privacy = PrivacyLevel.Password)]
+        [FieldDefinition(4, Label = "SecretToken", Type = FieldType.Password, Privacy = PrivacyLevel.Password)]
         public string SecretToken { get; set; }
 
         public NzbDroneValidationResult Validate()

src/NzbDrone.Core/Download/Clients/Blackhole/TorrentBlackhole.cs

@@ -8,6 +8,7 @@ using NzbDrone.Common.Disk;
 using NzbDrone.Common.Extensions;
 using NzbDrone.Common.Http;
 using NzbDrone.Core.Configuration;
+using NzbDrone.Core.Localization;
 using NzbDrone.Core.MediaFiles.TorrentInfo;
 using NzbDrone.Core.Organizer;
 using NzbDrone.Core.Parser.Model;
@@ -29,8 +30,9 @@ namespace NzbDrone.Core.Download.Clients.Blackhole
                                 IConfigService configService,
                                 IDiskProvider diskProvider,
                                 IRemotePathMappingService remotePathMappingService,
-                                Logger logger)
+                                Logger logger,
-            : base(torrentFileInfoReader, httpClient, configService, diskProvider, remotePathMappingService, logger)
+                                ILocalizationService localizationService)
+            : base(torrentFileInfoReader, httpClient, configService, diskProvider, remotePathMappingService, logger, localizationService)
         {
             _scanWatchFolder = scanWatchFolder;
 
@@ -79,7 +81,7 @@ namespace NzbDrone.Core.Download.Clients.Blackhole
             return null;
         }
 
-        public override string Name => "Torrent Blackhole";
+        public override string Name => _localizationService.GetLocalizedString("TorrentBlackhole");
 
         public override IEnumerable<DownloadClientItem> GetItems()
         {

src/NzbDrone.Core/Download/Clients/Blackhole/TorrentBlackholeSettings.cs

@@ -28,23 +28,24 @@ namespace NzbDrone.Core.Download.Clients.Blackhole
 
         private static readonly TorrentBlackholeSettingsValidator Validator = new TorrentBlackholeSettingsValidator();
 
-        [FieldDefinition(0, Label = "Torrent Folder", Type = FieldType.Path, HelpText = "Folder in which Sonarr will store the .torrent file")]
+        [FieldDefinition(0, Label = "TorrentBlackholeTorrentFolder", Type = FieldType.Path, HelpText = "BlackholeFolderHelpText")]
+        [FieldToken(TokenField.HelpText, "TorrentBlackholeTorrentFolder", "extension", ".torrent")]
         public string TorrentFolder { get; set; }
 
-        [FieldDefinition(1, Label = "Watch Folder", Type = FieldType.Path, HelpText = "Folder from which Sonarr should import completed downloads")]
+        [FieldDefinition(1, Label = "BlackholeWatchFolder", Type = FieldType.Path, HelpText = "BlackholeWatchFolderHelpText")]
         public string WatchFolder { get; set; }
 
         [DefaultValue(false)]
         [JsonProperty(DefaultValueHandling = DefaultValueHandling.Populate)]
-        [FieldDefinition(2, Label = "Save Magnet Files", Type = FieldType.Checkbox, HelpText = "Save the magnet link if no .torrent file is available (only useful if the download client supports magnets saved to a file)")]
+        [FieldDefinition(2, Label = "TorrentBlackholeSaveMagnetFiles", Type = FieldType.Checkbox, HelpText = "TorrentBlackholeSaveMagnetFilesHelpText")]
         public bool SaveMagnetFiles { get; set; }
 
-        [FieldDefinition(3, Label = "Save Magnet Files", Type = FieldType.Textbox, HelpText = "Extension to use for magnet links, defaults to '.magnet'")]
+        [FieldDefinition(3, Label = "TorrentBlackholeSaveMagnetFilesExtension", Type = FieldType.Textbox, HelpText = "TorrentBlackholeSaveMagnetFilesExtensionHelpText")]
         public string MagnetFileExtension { get; set; }
 
         [DefaultValue(false)]
         [JsonProperty(DefaultValueHandling = DefaultValueHandling.Populate)]
-        [FieldDefinition(4, Label = "Read Only", Type = FieldType.Checkbox, HelpText = "Instead of moving files this will instruct Sonarr to Copy or Hardlink (depending on settings/system configuration)")]
+        [FieldDefinition(4, Label = "TorrentBlackholeSaveMagnetFilesReadOnly", Type = FieldType.Checkbox, HelpText = "TorrentBlackholeSaveMagnetFilesReadOnlyHelpText")]
         public bool ReadOnly { get; set; }
 
         public NzbDroneValidationResult Validate()

src/NzbDrone.Core/Download/Clients/Blackhole/UsenetBlackhole.cs

@@ -7,6 +7,7 @@ using NzbDrone.Common.Disk;
 using NzbDrone.Common.Extensions;
 using NzbDrone.Common.Http;
 using NzbDrone.Core.Configuration;
+using NzbDrone.Core.Localization;
 using NzbDrone.Core.Organizer;
 using NzbDrone.Core.Parser.Model;
 using NzbDrone.Core.RemotePathMappings;
@@ -25,8 +26,9 @@ namespace NzbDrone.Core.Download.Clients.Blackhole
                                IDiskProvider diskProvider,
                                IRemotePathMappingService remotePathMappingService,
                                IValidateNzbs nzbValidationService,
-                               Logger logger)
+                               Logger logger,
-            : base(httpClient, configService, diskProvider, remotePathMappingService, nzbValidationService, logger)
+                               ILocalizationService localizationService)
+            : base(httpClient, configService, diskProvider, remotePathMappingService, nzbValidationService, logger, localizationService)
         {
             _scanWatchFolder = scanWatchFolder;
 
@@ -51,7 +53,7 @@ namespace NzbDrone.Core.Download.Clients.Blackhole
             return null;
         }
 
-        public override string Name => "Usenet Blackhole";
+        public override string Name => _localizationService.GetLocalizedString("UsenetBlackhole");
 
         public override IEnumerable<DownloadClientItem> GetItems()
         {

src/NzbDrone.Core/Download/Clients/Blackhole/UsenetBlackholeSettings.cs

@@ -19,10 +19,11 @@ namespace NzbDrone.Core.Download.Clients.Blackhole
     {
         private static readonly UsenetBlackholeSettingsValidator Validator = new UsenetBlackholeSettingsValidator();
 
-        [FieldDefinition(0, Label = "Nzb Folder", Type = FieldType.Path, HelpText = "Folder in which Sonarr will store the .nzb file")]
+        [FieldDefinition(0, Label = "UsenetBlackholeNzbFolder", Type = FieldType.Path, HelpText = "BlackholeFolderHelpText")]
+        [FieldToken(TokenField.HelpText, "UsenetBlackholeNzbFolder", "extension", ".nzb")]
         public string NzbFolder { get; set; }
 
-        [FieldDefinition(1, Label = "Watch Folder", Type = FieldType.Path, HelpText = "Folder from which Sonarr should import completed downloads")]
+        [FieldDefinition(1, Label = "BlackholeWatchFolder", Type = FieldType.Path, HelpText = "BlackholeWatchFolderHelpText")]
         public string WatchFolder { get; set; }
 
         public NzbDroneValidationResult Validate()

src/NzbDrone.Core/Download/Clients/Deluge/Deluge.cs

@@ -8,6 +8,7 @@ using NzbDrone.Common.Disk;
 using NzbDrone.Common.Extensions;
 using NzbDrone.Common.Http;
 using NzbDrone.Core.Configuration;
+using NzbDrone.Core.Localization;
 using NzbDrone.Core.MediaFiles.TorrentInfo;
 using NzbDrone.Core.Parser.Model;
 using NzbDrone.Core.RemotePathMappings;
@@ -25,8 +26,9 @@ namespace NzbDrone.Core.Download.Clients.Deluge
                       IConfigService configService,
                       IDiskProvider diskProvider,
                       IRemotePathMappingService remotePathMappingService,
-                      Logger logger)
+                      Logger logger,
-            : base(torrentFileInfoReader, httpClient, configService, diskProvider, remotePathMappingService, logger)
+                      ILocalizationService localizationService)
+            : base(torrentFileInfoReader, httpClient, configService, diskProvider, remotePathMappingService, logger, localizationService)
         {
             _proxy = proxy;
         }
@@ -155,7 +157,7 @@ namespace NzbDrone.Core.Download.Clients.Deluge
                 if (torrent.State == DelugeTorrentStatus.Error)
                 {
                     item.Status = DownloadItemStatus.Warning;
-                    item.Message = "Deluge is reporting an error";
+                    item.Message = _localizationService.GetLocalizedString("DownloadClientDelugeTorrentStateError");
                 }
                 else if (torrent.IsFinished && torrent.State != DelugeTorrentStatus.Checking)
                 {
@@ -248,7 +250,7 @@ namespace NzbDrone.Core.Download.Clients.Deluge
             {
                 _logger.Error(ex, ex.Message);
 
-                return new NzbDroneValidationFailure("Password", "Authentication failed");
+                return new NzbDroneValidationFailure("Password", _localizationService.GetLocalizedString("DownloadClientValidationAuthenticationFailure"));
             }
             catch (WebException ex)
             {
@@ -256,29 +258,29 @@ namespace NzbDrone.Core.Download.Clients.Deluge
                 switch (ex.Status)
                 {
                     case WebExceptionStatus.ConnectFailure:
-                        return new NzbDroneValidationFailure("Host", "Unable to connect")
+                        return new NzbDroneValidationFailure("Host", _localizationService.GetLocalizedString("DownloadClientValidationUnableToConnect", new Dictionary<string, object> { { "clientName", Name } }))
                         {
-                            DetailedDescription = "Please verify the hostname and port."
+                            DetailedDescription = _localizationService.GetLocalizedString("DownloadClientValidationUnableToConnectDetail")
                         };
                     case WebExceptionStatus.ConnectionClosed:
-                        return new NzbDroneValidationFailure("UseSsl", "Verify SSL settings")
+                        return new NzbDroneValidationFailure("UseSsl", _localizationService.GetLocalizedString("DownloadClientValidationVerifySsl"))
                         {
-                            DetailedDescription = "Please verify your SSL configuration on both Deluge and Sonarr."
+                            DetailedDescription = _localizationService.GetLocalizedString("DownloadClientValidationVerifySslDetail", new Dictionary<string, object> { { "clientName", Name } })
                         };
                     case WebExceptionStatus.SecureChannelFailure:
-                        return new NzbDroneValidationFailure("UseSsl", "Unable to connect through SSL")
+                        return new NzbDroneValidationFailure("UseSsl", _localizationService.GetLocalizedString("DownloadClientValidationSslConnectFailure"))
                         {
-                            DetailedDescription = "Sonarr is unable to connect to Deluge using SSL. This problem could be computer related. Please try to configure both Sonarr and Deluge to not use SSL."
+                            DetailedDescription = _localizationService.GetLocalizedString("DownloadClientValidationSslConnectFailureDetail", new Dictionary<string, object> { { "clientName", Name } })
                         };
                     default:
-                        return new NzbDroneValidationFailure(string.Empty, "Unknown exception: " + ex.Message);
+                        return new NzbDroneValidationFailure(string.Empty, _localizationService.GetLocalizedString("DownloadClientValidationUnknownException", new Dictionary<string, object> { { "exception", ex.Message } }));
                 }
             }
             catch (Exception ex)
             {
                 _logger.Error(ex, "Failed to test connection");
 
-                return new NzbDroneValidationFailure("Host", "Unable to connect to Deluge")
+                return new NzbDroneValidationFailure("Host", _localizationService.GetLocalizedString("DownloadClientValidationUnableToConnect", new Dictionary<string, object> { { "clientName", Name } }))
                        {
                            DetailedDescription = ex.Message
                        };
@@ -298,9 +300,9 @@ namespace NzbDrone.Core.Download.Clients.Deluge
 
             if (!enabledPlugins.Contains("Label"))
             {
-                return new NzbDroneValidationFailure("TvCategory", "Label plugin not activated")
+                return new NzbDroneValidationFailure("TvCategory", _localizationService.GetLocalizedString("DownloadClientDelugeValidationLabelPluginInactive"))
                 {
-                    DetailedDescription = "You must have the Label plugin enabled in Deluge to use categories."
+                    DetailedDescription = _localizationService.GetLocalizedString("DownloadClientDelugeValidationLabelPluginInactiveDetail", new Dictionary<string, object> { { "clientName", Name } })
                 };
             }
 
@@ -313,9 +315,9 @@ namespace NzbDrone.Core.Download.Clients.Deluge
 
                 if (!labels.Contains(Settings.TvCategory))
                 {
-                    return new NzbDroneValidationFailure("TvCategory", "Configuration of label failed")
+                    return new NzbDroneValidationFailure("TvCategory", _localizationService.GetLocalizedString("DownloadClientDelugeValidationLabelPluginFailure"))
                     {
-                        DetailedDescription = "Sonarr was unable to add the label to Deluge."
+                        DetailedDescription = _localizationService.GetLocalizedString("DownloadClientDelugeValidationLabelPluginFailureDetail", new Dictionary<string, object> { { "clientName", Name } })
                     };
                 }
             }
@@ -327,9 +329,9 @@ namespace NzbDrone.Core.Download.Clients.Deluge
 
                 if (!labels.Contains(Settings.TvImportedCategory))
                 {
-                    return new NzbDroneValidationFailure("TvImportedCategory", "Configuration of label failed")
+                    return new NzbDroneValidationFailure("TvImportedCategory", _localizationService.GetLocalizedString("DownloadClientDelugeValidationLabelPluginFailure"))
                     {
-                        DetailedDescription = "Sonarr was unable to add the label to Deluge."
+                        DetailedDescription = _localizationService.GetLocalizedString("DownloadClientDelugeValidationLabelPluginFailureDetail", new Dictionary<string, object> { { "clientName", Name } })
                     };
                 }
             }
@@ -346,7 +348,7 @@ namespace NzbDrone.Core.Download.Clients.Deluge
             catch (Exception ex)
             {
                 _logger.Error(ex, "Unable to get torrents");
-                return new NzbDroneValidationFailure(string.Empty, "Failed to get the list of torrents: " + ex.Message);
+                return new NzbDroneValidationFailure(string.Empty, _localizationService.GetLocalizedString("DownloadClientValidationTestTorrents", new Dictionary<string, object> { { "exceptionMessage", ex.Message } }));
             }
 
             return null;

src/NzbDrone.Core/Download/Clients/Deluge/DelugeSettings.cs

@@ -35,28 +35,30 @@ namespace NzbDrone.Core.Download.Clients.Deluge
         [FieldDefinition(1, Label = "Port", Type = FieldType.Textbox)]
         public int Port { get; set; }
 
-        [FieldDefinition(2, Label = "Use SSL", Type = FieldType.Checkbox, HelpText = "Use secure connection when connecting to Deluge")]
+        [FieldDefinition(2, Label = "UseSsl", Type = FieldType.Checkbox, HelpText = "DownloadClientSettingsUseSslHelpText")]
+        [FieldToken(TokenField.HelpText, "UseSsl", "clientName", "Deluge")]
         public bool UseSsl { get; set; }
 
-        [FieldDefinition(3, Label = "Url Base", Type = FieldType.Textbox, Advanced = true, HelpText = "Adds a prefix to the deluge json url, see http://[host]:[port]/[urlBase]/json")]
+        [FieldDefinition(3, Label = "UrlBase", Type = FieldType.Textbox, Advanced = true, HelpText = "DownloadClientDelugeSettingsUrlBaseHelpText")]
+        [FieldToken(TokenField.HelpText, "UrlBase", "url", "http://[host]:[port]/[urlBase]/json")]
         public string UrlBase { get; set; }
 
         [FieldDefinition(4, Label = "Password", Type = FieldType.Password, Privacy = PrivacyLevel.Password)]
         public string Password { get; set; }
 
-        [FieldDefinition(5, Label = "Category", Type = FieldType.Textbox, HelpText = "Adding a category specific to Sonarr avoids conflicts with unrelated non-Sonarr downloads. Using a category is optional, but strongly recommended.")]
+        [FieldDefinition(5, Label = "Category", Type = FieldType.Textbox, HelpText = "DownloadClientSettingsCategoryHelpText")]
         public string TvCategory { get; set; }
 
-        [FieldDefinition(6, Label = "Post-Import Category", Type = FieldType.Textbox, Advanced = true, HelpText = "Category for Sonarr to set after it has imported the download. Sonarr will not remove torrents in that category even if seeding finished. Leave blank to keep same category.")]
+        [FieldDefinition(6, Label = "PostImportCategory", Type = FieldType.Textbox, Advanced = true, HelpText = "DownloadClientSettingsPostImportCategoryHelpText")]
         public string TvImportedCategory { get; set; }
 
-        [FieldDefinition(7, Label = "Recent Priority", Type = FieldType.Select, SelectOptions = typeof(DelugePriority), HelpText = "Priority to use when grabbing episodes that aired within the last 14 days")]
+        [FieldDefinition(7, Label = "DownloadClientSettingsRecentPriority", Type = FieldType.Select, SelectOptions = typeof(DelugePriority), HelpText = "DownloadClientSettingsRecentPriorityHelpText")]
         public int RecentTvPriority { get; set; }
 
-        [FieldDefinition(8, Label = "Older Priority", Type = FieldType.Select, SelectOptions = typeof(DelugePriority), HelpText = "Priority to use when grabbing episodes that aired over 14 days ago")]
+        [FieldDefinition(8, Label = "DownloadClientSettingsOlderPriority", Type = FieldType.Select, SelectOptions = typeof(DelugePriority), HelpText = "DownloadClientSettingsOlderPriorityHelpText")]
         public int OlderTvPriority { get; set; }
 
-        [FieldDefinition(9, Label = "Add Paused", Type = FieldType.Checkbox)]
+        [FieldDefinition(9, Label = "DownloadClientSettingsAddPaused", Type = FieldType.Checkbox)]
         public bool AddPaused { get; set; }
 
         public NzbDroneValidationResult Validate()

src/NzbDrone.Core/Download/Clients/DownloadStation/DownloadStationSettings.cs

@@ -36,7 +36,8 @@ namespace NzbDrone.Core.Download.Clients.DownloadStation
         [FieldDefinition(1, Label = "Port", Type = FieldType.Textbox)]
         public int Port { get; set; }
 
-        [FieldDefinition(2, Label = "Use SSL", Type = FieldType.Checkbox, HelpText = "Use secure connection when connecting to Download Station")]
+        [FieldDefinition(2, Label = "UseSsl", Type = FieldType.Checkbox, HelpText = "DownloadClientSettingsUseSslHelpText")]
+        [FieldToken(TokenField.HelpText, "UseSsl", "clientName", "Download Station")]
         public bool UseSsl { get; set; }
 
         [FieldDefinition(3, Label = "Username", Type = FieldType.Textbox, Privacy = PrivacyLevel.UserName)]
@@ -45,10 +46,10 @@ namespace NzbDrone.Core.Download.Clients.DownloadStation
         [FieldDefinition(4, Label = "Password", Type = FieldType.Password, Privacy = PrivacyLevel.Password)]
         public string Password { get; set; }
 
-        [FieldDefinition(5, Label = "Category", Type = FieldType.Textbox, HelpText = "Adding a category specific to Sonarr avoids conflicts with unrelated non-Sonarr downloads. Using a category is optional, but strongly recommended.. Creates a [category] subdirectory in the output directory.")]
+        [FieldDefinition(5, Label = "Category", Type = FieldType.Textbox, HelpText = "DownloadClientSettingsCategorySubFolderHelpText")]
         public string TvCategory { get; set; }
 
-        [FieldDefinition(6, Label = "Directory", Type = FieldType.Textbox, HelpText = "Optional shared folder to put downloads into, leave blank to use the default Download Station location")]
+        [FieldDefinition(6, Label = "Directory", Type = FieldType.Textbox, HelpText = "DownloadClientDownloadStationSettingsDirectory")]
         public string TvDirectory { get; set; }
 
         public DownloadStationSettings()

src/NzbDrone.Core/Download/Clients/DownloadStation/TorrentDownloadStation.cs

@@ -10,6 +10,7 @@ using NzbDrone.Common.Extensions;
 using NzbDrone.Common.Http;
 using NzbDrone.Core.Configuration;
 using NzbDrone.Core.Download.Clients.DownloadStation.Proxies;
+using NzbDrone.Core.Localization;
 using NzbDrone.Core.MediaFiles.TorrentInfo;
 using NzbDrone.Core.Parser.Model;
 using NzbDrone.Core.RemotePathMappings;
@@ -36,8 +37,9 @@ namespace NzbDrone.Core.Download.Clients.DownloadStation
                                       IConfigService configService,
                                       IDiskProvider diskProvider,
                                       IRemotePathMappingService remotePathMappingService,
-                                      Logger logger)
+                                      Logger logger,
-            : base(torrentFileInfoReader, httpClient, configService, diskProvider, remotePathMappingService, logger)
+                                      ILocalizationService localizationService)
+            : base(torrentFileInfoReader, httpClient, configService, diskProvider, remotePathMappingService, logger, localizationService)
         {
             _dsInfoProxy = dsInfoProxy;
             _dsTaskProxySelector = dsTaskProxySelector;
@@ -48,7 +50,7 @@ namespace NzbDrone.Core.Download.Clients.DownloadStation
 
         public override string Name => "Download Station";
 
-        public override ProviderMessage Message => new ProviderMessage("Sonarr is unable to connect to Download Station if 2-Factor Authentication is enabled on your DSM account", ProviderMessageType.Warning);
+        public override ProviderMessage Message => new ProviderMessage(_localizationService.GetLocalizedString("DownloadClientDownloadStationProviderMessage"), ProviderMessageType.Warning);
 
         private IDownloadStationTaskProxy DsTaskProxy => _dsTaskProxySelector.GetProxy(Settings);
 
@@ -222,7 +224,9 @@ namespace NzbDrone.Core.Download.Clients.DownloadStation
             {
                 if (torrent.Status == DownloadStationTaskStatus.Extracting)
                 {
-                    return $"Extracting: {int.Parse(torrent.StatusExtra["unzip_progress"])}%";
+                    return _localizationService.GetLocalizedString("DownloadStationStatusExtracting",
+                        new Dictionary<string, object>
+                            { { "progress", int.Parse(torrent.StatusExtra["unzip_progress"]) } });
                 }
 
                 if (torrent.Status == DownloadStationTaskStatus.Error)
@@ -308,9 +312,9 @@ namespace NzbDrone.Core.Download.Clients.DownloadStation
 
                 if (downloadDir == null)
                 {
-                    return new NzbDroneValidationFailure(nameof(Settings.TvDirectory), "No default destination")
+                    return new NzbDroneValidationFailure(nameof(Settings.TvDirectory), "DownloadClientDownloadStationValidationNoDefaultDestination")
                     {
-                        DetailedDescription = $"You must login into your Diskstation as {Settings.Username} and manually set it up into DownloadStation settings under BT/HTTP/FTP/NZB -> Location."
+                        DetailedDescription = _localizationService.GetLocalizedString("DownloadClientDownloadStationValidationNoDefaultDestinationDetail", new Dictionary<string, object> { { "username", Settings.Username } })
                     };
                 }
 
@@ -325,17 +329,17 @@ namespace NzbDrone.Core.Download.Clients.DownloadStation
 
                     if (folderInfo.Additional == null)
                     {
-                        return new NzbDroneValidationFailure(fieldName, $"Shared folder does not exist")
+                        return new NzbDroneValidationFailure(fieldName, _localizationService.GetLocalizedString("DownloadClientDownloadStationValidationSharedFolderMissing"))
                         {
-                            DetailedDescription = $"The Diskstation does not have a Shared Folder with the name '{sharedFolder}', are you sure you specified it correctly?"
+                            DetailedDescription = _localizationService.GetLocalizedString("DownloadClientDownloadStationValidationSharedFolderMissingDetail", new Dictionary<string, object> { { "sharedFolder", sharedFolder } })
                         };
                     }
 
                     if (!folderInfo.IsDir)
                     {
-                        return new NzbDroneValidationFailure(fieldName, $"Folder does not exist")
+                        return new NzbDroneValidationFailure(fieldName, _localizationService.GetLocalizedString("DownloadClientDownloadStationValidationFolderMissing"))
                         {
-                            DetailedDescription = $"The folder '{downloadDir}' does not exist, it must be created manually inside the Shared Folder '{sharedFolder}'."
+                            DetailedDescription = _localizationService.GetLocalizedString("DownloadClientDownloadStationValidationFolderMissingDetail", new Dictionary<string, object> { { "downloadDir", downloadDir }, { "sharedFolder", sharedFolder } })
                         };
                     }
                 }
@@ -351,7 +355,7 @@ namespace NzbDrone.Core.Download.Clients.DownloadStation
             catch (Exception ex)
             {
                 _logger.Error(ex, "Error testing Torrent Download Station");
-                return new NzbDroneValidationFailure(string.Empty, $"Unknown exception: {ex.Message}");
+                return new NzbDroneValidationFailure(string.Empty, _localizationService.GetLocalizedString("DownloadClientValidationUnknownException", new Dictionary<string, object> { { "exception", ex.Message } }));
             }
         }
 
@@ -364,9 +368,9 @@ namespace NzbDrone.Core.Download.Clients.DownloadStation
             catch (DownloadClientAuthenticationException ex)
             {
                 _logger.Error(ex, ex.Message);
-                return new NzbDroneValidationFailure("Username", "Authentication failure")
+                return new NzbDroneValidationFailure("Username", _localizationService.GetLocalizedString("DownloadClientValidationAuthenticationFailure"))
                 {
-                    DetailedDescription = $"Please verify your username and password. Also verify if the host running Sonarr isn't blocked from accessing {Name} by WhiteList limitations in the {Name} configuration."
+                    DetailedDescription = _localizationService.GetLocalizedString("DownloadClientValidationAuthenticationFailureDetail", new Dictionary<string, object> { { "clientName", Name } })
                 };
             }
             catch (WebException ex)
@@ -375,19 +379,19 @@ namespace NzbDrone.Core.Download.Clients.DownloadStation
 
                 if (ex.Status == WebExceptionStatus.ConnectFailure)
                 {
-                    return new NzbDroneValidationFailure("Host", "Unable to connect")
+                    return new NzbDroneValidationFailure("Host", _localizationService.GetLocalizedString("DownloadClientValidationUnableToConnect", new Dictionary<string, object> { { "clientName", Name } }))
                     {
-                        DetailedDescription = "Please verify the hostname and port."
+                        DetailedDescription = _localizationService.GetLocalizedString("DownloadClientValidationUnableToConnectDetail")
                     };
                 }
 
-                return new NzbDroneValidationFailure(string.Empty, $"Unknown exception: {ex.Message}");
+                return new NzbDroneValidationFailure(string.Empty, _localizationService.GetLocalizedString("DownloadClientValidationUnknownException", new Dictionary<string, object> { { "exception", ex.Message } }));
             }
             catch (Exception ex)
             {
                 _logger.Error(ex, "Error testing Torrent Download Station");
 
-                return new NzbDroneValidationFailure("Host", "Unable to connect to Torrent Download Station")
+                return new NzbDroneValidationFailure("Host", _localizationService.GetLocalizedString("DownloadClientValidationUnableToConnect", new Dictionary<string, object> { { "clientName", Name } }))
                        {
                            DetailedDescription = ex.Message
                        };
@@ -402,7 +406,12 @@ namespace NzbDrone.Core.Download.Clients.DownloadStation
 
             if (info.MinVersion > 2 || info.MaxVersion < 2)
             {
-                return new ValidationFailure(string.Empty, $"Download Station API version not supported, should be at least 2. It supports from {info.MinVersion} to {info.MaxVersion}");
+                return new ValidationFailure(string.Empty,
+                    _localizationService.GetLocalizedString("DownloadClientDownloadStationValidationApiVersion",
+                        new Dictionary<string, object>
+                        {
+                            { "requiredVersion", 2 }, { "minVersion", info.MinVersion }, { "maxVersion", info.MaxVersion }
+                        }));
             }
 
             return null;
@@ -417,7 +426,7 @@ namespace NzbDrone.Core.Download.Clients.DownloadStation
             }
             catch (Exception ex)
             {
-                return new NzbDroneValidationFailure(string.Empty, $"Failed to get the list of torrents: {ex.Message}");
+                return new NzbDroneValidationFailure(string.Empty, _localizationService.GetLocalizedString("DownloadClientValidationTestTorrents", new Dictionary<string, object> { { "exceptionMessage", ex.Message } }));
             }
         }
 

src/NzbDrone.Core/Download/Clients/DownloadStation/UsenetDownloadStation.cs

@@ -9,6 +9,7 @@ using NzbDrone.Common.Extensions;
 using NzbDrone.Common.Http;
 using NzbDrone.Core.Configuration;
 using NzbDrone.Core.Download.Clients.DownloadStation.Proxies;
+using NzbDrone.Core.Localization;
 using NzbDrone.Core.Parser.Model;
 using NzbDrone.Core.RemotePathMappings;
 using NzbDrone.Core.ThingiProvider;
@@ -34,8 +35,9 @@ namespace NzbDrone.Core.Download.Clients.DownloadStation
                                      IDiskProvider diskProvider,
                                      IRemotePathMappingService remotePathMappingService,
                                      IValidateNzbs nzbValidationService,
-                                     Logger logger)
+                                     Logger logger,
-            : base(httpClient, configService, diskProvider, remotePathMappingService, nzbValidationService, logger)
+                                     ILocalizationService localizationService)
+            : base(httpClient, configService, diskProvider, remotePathMappingService, nzbValidationService, logger, localizationService)
         {
             _dsInfoProxy = dsInfoProxy;
             _dsTaskProxySelector = dsTaskProxySelector;
@@ -46,7 +48,7 @@ namespace NzbDrone.Core.Download.Clients.DownloadStation
 
         public override string Name => "Download Station";
 
-        public override ProviderMessage Message => new ProviderMessage("Sonarr is unable to connect to Download Station if 2-Factor Authentication is enabled on your DSM account", ProviderMessageType.Warning);
+        public override ProviderMessage Message => new ProviderMessage(_localizationService.GetLocalizedString("DownloadClientDownloadStationProviderMessage"), ProviderMessageType.Warning);
 
         private IDownloadStationTaskProxy DsTaskProxy => _dsTaskProxySelector.GetProxy(Settings);
 
@@ -213,9 +215,9 @@ namespace NzbDrone.Core.Download.Clients.DownloadStation
 
                 if (downloadDir == null)
                 {
-                    return new NzbDroneValidationFailure(nameof(Settings.TvDirectory), "No default destination")
+                    return new NzbDroneValidationFailure(nameof(Settings.TvDirectory), "DownloadClientDownloadStationValidationNoDefaultDestination")
                     {
-                        DetailedDescription = $"You must login into your Diskstation as {Settings.Username} and manually set it up into DownloadStation settings under BT/HTTP/FTP/NZB -> Location."
+                        DetailedDescription = _localizationService.GetLocalizedString("DownloadClientDownloadStationValidationNoDefaultDestinationDetail", new Dictionary<string, object> { { "username", Settings.Username } })
                     };
                 }
 
@@ -230,17 +232,17 @@ namespace NzbDrone.Core.Download.Clients.DownloadStation
 
                     if (folderInfo.Additional == null)
                     {
-                        return new NzbDroneValidationFailure(fieldName, $"Shared folder does not exist")
+                        return new NzbDroneValidationFailure(fieldName, _localizationService.GetLocalizedString("DownloadClientDownloadStationValidationSharedFolderMissing"))
                         {
-                            DetailedDescription = $"The Diskstation does not have a Shared Folder with the name '{sharedFolder}', are you sure you specified it correctly?"
+                            DetailedDescription = _localizationService.GetLocalizedString("DownloadClientDownloadStationValidationSharedFolderMissingDetail", new Dictionary<string, object> { { "sharedFolder", sharedFolder } })
                         };
                     }
 
                     if (!folderInfo.IsDir)
                     {
-                        return new NzbDroneValidationFailure(fieldName, $"Folder does not exist")
+                        return new NzbDroneValidationFailure(fieldName, _localizationService.GetLocalizedString("DownloadClientDownloadStationValidationFolderMissing"))
                         {
-                            DetailedDescription = $"The folder '{downloadDir}' does not exist, it must be created manually inside the Shared Folder '{sharedFolder}'."
+                            DetailedDescription = _localizationService.GetLocalizedString("DownloadClientDownloadStationValidationFolderMissingDetail", new Dictionary<string, object> { { "downloadDir", downloadDir }, { "sharedFolder", sharedFolder } })
                         };
                     }
                 }
@@ -256,7 +258,7 @@ namespace NzbDrone.Core.Download.Clients.DownloadStation
             catch (Exception ex)
             {
                 _logger.Error(ex, "Error testing Usenet Download Station");
-                return new NzbDroneValidationFailure(string.Empty, $"Unknown exception: {ex.Message}");
+                return new NzbDroneValidationFailure(string.Empty, _localizationService.GetLocalizedString("DownloadClientValidationUnknownException", new Dictionary<string, object> { { "exception", ex.Message } }));
             }
         }
 
@@ -269,9 +271,9 @@ namespace NzbDrone.Core.Download.Clients.DownloadStation
             catch (DownloadClientAuthenticationException ex)
             {
                 _logger.Error(ex, ex.Message);
-                return new NzbDroneValidationFailure("Username", "Authentication failure")
+                return new NzbDroneValidationFailure("Username", _localizationService.GetLocalizedString("DownloadClientValidationAuthenticationFailure"))
                 {
-                    DetailedDescription = $"Please verify your username and password. Also verify if the host running Sonarr isn't blocked from accessing {Name} by WhiteList limitations in the {Name} configuration."
+                    DetailedDescription = _localizationService.GetLocalizedString("DownloadClientValidationAuthenticationFailureDetail", new Dictionary<string, object> { { "clientName", Name } })
                 };
             }
             catch (WebException ex)
@@ -280,19 +282,19 @@ namespace NzbDrone.Core.Download.Clients.DownloadStation
 
                 if (ex.Status == WebExceptionStatus.ConnectFailure)
                 {
-                    return new NzbDroneValidationFailure("Host", "Unable to connect")
+                    return new NzbDroneValidationFailure("Host", _localizationService.GetLocalizedString("DownloadClientValidationUnableToConnect", new Dictionary<string, object> { { "clientName", Name } }))
                     {
-                        DetailedDescription = "Please verify the hostname and port."
+                        DetailedDescription = _localizationService.GetLocalizedString("DownloadClientValidationUnableToConnectDetail")
                     };
                 }
 
-                return new NzbDroneValidationFailure(string.Empty, "Unknown exception: " + ex.Message);
+                return new NzbDroneValidationFailure(string.Empty, _localizationService.GetLocalizedString("DownloadClientValidationUnknownException", new Dictionary<string, object> { { "exception", ex.Message } }));
             }
             catch (Exception ex)
             {
                 _logger.Error(ex, "Error testing Torrent Download Station");
 
-                return new NzbDroneValidationFailure("Host", "Unable to connect to Usenet Download Station")
+                return new NzbDroneValidationFailure("Host", _localizationService.GetLocalizedString("DownloadClientValidationUnableToConnect", new Dictionary<string, object> { { "clientName", Name } }))
                        {
                            DetailedDescription = ex.Message
                        };
@@ -307,7 +309,12 @@ namespace NzbDrone.Core.Download.Clients.DownloadStation
 
             if (info.MinVersion > 2 || info.MaxVersion < 2)
             {
-                return new ValidationFailure(string.Empty, $"Download Station API version not supported, should be at least 2. It supports from {info.MinVersion} to {info.MaxVersion}");
+                return new ValidationFailure(string.Empty,
+                    _localizationService.GetLocalizedString("DownloadClientDownloadStationValidationApiVersion",
+                        new Dictionary<string, object>
+                        {
+                            { "requiredVersion", 2 }, { "minVersion", info.MinVersion }, { "maxVersion", info.MaxVersion }
+                        }));
             }
 
             return null;
@@ -319,7 +326,9 @@ namespace NzbDrone.Core.Download.Clients.DownloadStation
             {
                 if (task.Status == DownloadStationTaskStatus.Extracting)
                 {
-                    return $"Extracting: {int.Parse(task.StatusExtra["unzip_progress"])}%";
+                    return _localizationService.GetLocalizedString("DownloadStationStatusExtracting",
+                        new Dictionary<string, object>
+                            { { "progress", int.Parse(task.StatusExtra["unzip_progress"]) } });
                 }
 
                 if (task.Status == DownloadStationTaskStatus.Error)
@@ -398,7 +407,7 @@ namespace NzbDrone.Core.Download.Clients.DownloadStation
             }
             catch (Exception ex)
             {
-                return new NzbDroneValidationFailure(string.Empty, "Failed to get the list of NZBs: " + ex.Message);
+                return new NzbDroneValidationFailure(string.Empty, _localizationService.GetLocalizedString("DownloadClientValidationTestNzbs", new Dictionary<string, object> { { "exceptionMessage", ex.Message } }));
             }
         }
 

src/NzbDrone.Core/Download/Clients/Flood/Flood.cs

@@ -9,6 +9,7 @@ using NzbDrone.Common.Extensions;
 using NzbDrone.Common.Http;
 using NzbDrone.Core.Configuration;
 using NzbDrone.Core.Download.Clients.Flood.Models;
+using NzbDrone.Core.Localization;
 using NzbDrone.Core.MediaFiles.TorrentInfo;
 using NzbDrone.Core.Parser.Model;
 using NzbDrone.Core.RemotePathMappings;
@@ -28,8 +29,9 @@ namespace NzbDrone.Core.Download.Clients.Flood
                         IConfigService configService,
                         IDiskProvider diskProvider,
                         IRemotePathMappingService remotePathMappingService,
-                        Logger logger)
+                        Logger logger,
-            : base(torrentFileInfoReader, httpClient, configService, diskProvider, remotePathMappingService, logger)
+                        ILocalizationService localizationService)
+            : base(torrentFileInfoReader, httpClient, configService, diskProvider, remotePathMappingService, logger, localizationService)
         {
             _proxy = proxy;
             _downloadSeedConfigProvider = downloadSeedConfigProvider;
@@ -81,7 +83,7 @@ namespace NzbDrone.Core.Download.Clients.Flood
         }
 
         public override string Name => "Flood";
-        public override ProviderMessage Message => new ProviderMessage("Sonarr will handle automatic removal of torrents based on the current seed criteria in Settings -> Indexers", ProviderMessageType.Info);
+        public override ProviderMessage Message => new ProviderMessage(_localizationService.GetLocalizedString("DownloadClientFloodSettingsRemovalInfo"), ProviderMessageType.Info);
 
         protected override string AddFromTorrentFile(RemoteEpisode remoteEpisode, string hash, string filename, byte[] fileContent)
         {

src/NzbDrone.Core/Download/Clients/Flood/FloodSettings.cs

@@ -40,10 +40,12 @@ namespace NzbDrone.Core.Download.Clients.Flood
         [FieldDefinition(1, Label = "Port", Type = FieldType.Textbox)]
         public int Port { get; set; }
 
-        [FieldDefinition(2, Label = "Use SSL", Type = FieldType.Checkbox, HelpText = "Use secure connection when connecting to Flood")]
+        [FieldDefinition(2, Label = "UseSsl", Type = FieldType.Checkbox, HelpText = "DownloadClientSettingsUseSslHelpText")]
+        [FieldToken(TokenField.HelpText, "UseSsl", "clientName", "Flood")]
         public bool UseSsl { get; set; }
 
-        [FieldDefinition(3, Label = "Url Base", Type = FieldType.Textbox, HelpText = "Optionally adds a prefix to Flood API, such as [protocol]://[host]:[port]/[urlBase]api")]
+        [FieldDefinition(3, Label = "UrlBase", Type = FieldType.Textbox, HelpText = "DownloadClientFloodSettingsUrlBaseHelpText")]
+        [FieldToken(TokenField.HelpText, "UrlBase", "url", "[protocol]://[host]:[port]/[urlBase]/api")]
         public string UrlBase { get; set; }
 
         [FieldDefinition(4, Label = "Username", Type = FieldType.Textbox, Privacy = PrivacyLevel.UserName)]
@@ -52,19 +54,19 @@ namespace NzbDrone.Core.Download.Clients.Flood
         [FieldDefinition(5, Label = "Password", Type = FieldType.Password, Privacy = PrivacyLevel.Password)]
         public string Password { get; set; }
 
-        [FieldDefinition(6, Label = "Destination", Type = FieldType.Textbox, HelpText = "Manually specifies download destination")]
+        [FieldDefinition(6, Label = "Destination", Type = FieldType.Textbox, HelpText = "DownloadClientSettingsDestinationHelpText")]
         public string Destination { get; set; }
 
-        [FieldDefinition(7, Label = "Tags", Type = FieldType.Tag, HelpText = "Initial tags of a download. To be recognized, a download must have all initial tags. This avoids conflicts with unrelated downloads.")]
+        [FieldDefinition(7, Label = "Tags", Type = FieldType.Tag, HelpText = "DownloadClientFloodSettingsTagsHelpText")]
         public IEnumerable<string> Tags { get; set; }
 
-        [FieldDefinition(8, Label = "Post-Import Tags", Type = FieldType.Tag, HelpText = "Appends tags after a download is imported.", Advanced = true)]
+        [FieldDefinition(8, Label = "DownloadClientFloodSettingsPostImportTags", Type = FieldType.Tag, HelpText = "DownloadClientFloodSettingsPostImportTagsHelpText", Advanced = true)]
         public IEnumerable<string> PostImportTags { get; set; }
 
-        [FieldDefinition(9, Label = "Additional Tags", Type = FieldType.Select, SelectOptions = typeof(AdditionalTags), HelpText = "Adds properties of media as tags. Hints are examples.", Advanced = true)]
+        [FieldDefinition(9, Label = "DownloadClientFloodSettingsAdditionalTags", Type = FieldType.Select, SelectOptions = typeof(AdditionalTags), HelpText = "DownloadClientFloodSettingsAdditionalTagsHelpText", Advanced = true)]
         public IEnumerable<int> AdditionalTags { get; set; }
 
-        [FieldDefinition(10, Label = "Start on Add", Type = FieldType.Checkbox)]
+        [FieldDefinition(10, Label = "DownloadClientFloodSettingsStartOnAdd", Type = FieldType.Checkbox)]
         public bool StartOnAdd { get; set; }
 
         public NzbDroneValidationResult Validate()

src/NzbDrone.Core/Download/Clients/FreeboxDownload/FreeboxDownloadSettings.cs

@@ -46,37 +46,42 @@ namespace NzbDrone.Core.Download.Clients.FreeboxDownload
             ApiUrl = "/api/v1/";
         }
 
-        [FieldDefinition(0, Label = "Host", Type = FieldType.Textbox, HelpText = "Hostname or host IP address of the Freebox, defaults to 'mafreebox.freebox.fr' (will only work if on same network)")]
+        [FieldDefinition(0, Label = "Host", Type = FieldType.Textbox, HelpText = "DownloadClientFreeboxSettingsHostHelpText")]
+        [FieldToken(TokenField.HelpText, "Host", "url", "mafreebox.freebox.fr")]
         public string Host { get; set; }
 
-        [FieldDefinition(1, Label = "Port", Type = FieldType.Textbox, HelpText = "Port used to access Freebox interface, defaults to '443'")]
+        [FieldDefinition(1, Label = "Port", Type = FieldType.Textbox, HelpText = "DownloadClientFreeboxSettingsPortHelpText")]
+        [FieldToken(TokenField.HelpText, "Port", "port", 443)]
         public int Port { get; set; }
 
-        [FieldDefinition(2, Label = "Use SSL", Type = FieldType.Checkbox, HelpText = "Use secured connection when connecting to Freebox API")]
+        [FieldDefinition(2, Label = "UseSsl", Type = FieldType.Checkbox, HelpText = "DownloadClientSettingsUseSslHelpText")]
+        [FieldToken(TokenField.HelpText, "UseSsl", "clientName", "Freebox API")]
         public bool UseSsl { get; set; }
 
-        [FieldDefinition(3, Label = "API URL", Type = FieldType.Textbox, Advanced = true, HelpText = "Define Freebox API base URL with API version, eg http://[host]:[port]/[api_base_url]/[api_version]/, defaults to '/api/v1/'")]
+        [FieldDefinition(3, Label = "DownloadClientFreeboxSettingsApiUrl", Type = FieldType.Textbox, Advanced = true, HelpText = "DownloadClientFreeboxSettingsApiUrlHelpText")]
+        [FieldToken(TokenField.HelpText, "DownloadClientFreeboxSettingsApiUrl", "url", "http://[host]:[port]/[api_base_url]/[api_version]/")]
+        [FieldToken(TokenField.HelpText, "DownloadClientFreeboxSettingsApiUrl", "defaultApiUrl", "/api/v1/")]
         public string ApiUrl { get; set; }
 
-        [FieldDefinition(4, Label = "App ID", Type = FieldType.Textbox, HelpText = "App ID given when creating access to Freebox API (ie 'app_id')")]
+        [FieldDefinition(4, Label = "DownloadClientFreeboxSettingsAppId", Type = FieldType.Textbox, HelpText = "DownloadClientFreeboxSettingsAppIdHelpText")]
         public string AppId { get; set; }
 
-        [FieldDefinition(5, Label = "App Token", Type = FieldType.Password, Privacy = PrivacyLevel.Password, HelpText = "App token retrieved when creating access to Freebox API (ie 'app_token')")]
+        [FieldDefinition(5, Label = "DownloadClientFreeboxSettingsAppToken", Type = FieldType.Password, Privacy = PrivacyLevel.Password, HelpText = "DownloadClientFreeboxSettingsAppTokenHelpText")]
         public string AppToken { get; set; }
 
-        [FieldDefinition(6, Label = "Destination Directory", Type = FieldType.Textbox, Advanced = true, HelpText = "Optional location to put downloads in, leave blank to use the default Freebox download location")]
+        [FieldDefinition(6, Label = "Destination", Type = FieldType.Textbox, Advanced = true, HelpText = "DownloadClientSettingsDestinationHelpText")]
         public string DestinationDirectory { get; set; }
 
-        [FieldDefinition(7, Label = "Category", Type = FieldType.Textbox, HelpText = "Adding a category specific to Sonarr avoids conflicts with unrelated non-Sonarr downloads (will create a [category] subdirectory in the output directory)")]
+        [FieldDefinition(7, Label = "Category", Type = FieldType.Textbox, HelpText = "DownloadClientSettingsCategorySubFolderHelpText")]
         public string Category { get; set; }
 
-        [FieldDefinition(8, Label = "Recent Priority", Type = FieldType.Select, SelectOptions = typeof(FreeboxDownloadPriority), HelpText = "Priority to use when grabbing episodes that aired within the last 14 days")]
+        [FieldDefinition(8, Label = "DownloadClientSettingsRecentPriority", Type = FieldType.Select, SelectOptions = typeof(FreeboxDownloadPriority), HelpText = "DownloadClientSettingsRecentPriorityHelpText")]
         public int RecentPriority { get; set; }
 
-        [FieldDefinition(9, Label = "Older Priority", Type = FieldType.Select, SelectOptions = typeof(FreeboxDownloadPriority), HelpText = "Priority to use when grabbing episodes that aired over 14 days ago")]
+        [FieldDefinition(9, Label = "DownloadClientSettingsOlderPriority", Type = FieldType.Select, SelectOptions = typeof(FreeboxDownloadPriority), HelpText = "DownloadClientSettingsOlderPriorityHelpText")]
         public int OlderPriority { get; set; }
 
-        [FieldDefinition(10, Label = "Add Paused", Type = FieldType.Checkbox)]
+        [FieldDefinition(10, Label = "DownloadClientSettingsAddPaused", Type = FieldType.Checkbox)]
         public bool AddPaused { get; set; }
 
         public NzbDroneValidationResult Validate()

src/NzbDrone.Core/Download/Clients/FreeboxDownload/TorrentFreeboxDownload.cs

@@ -8,6 +8,7 @@ using NzbDrone.Common.Extensions;
 using NzbDrone.Common.Http;
 using NzbDrone.Core.Configuration;
 using NzbDrone.Core.Download.Clients.FreeboxDownload.Responses;
+using NzbDrone.Core.Localization;
 using NzbDrone.Core.MediaFiles.TorrentInfo;
 using NzbDrone.Core.Parser.Model;
 using NzbDrone.Core.RemotePathMappings;
@@ -24,8 +25,9 @@ namespace NzbDrone.Core.Download.Clients.FreeboxDownload
             IConfigService configService,
             IDiskProvider diskProvider,
             IRemotePathMappingService remotePathMappingService,
-            Logger logger)
+            Logger logger,
-            : base(torrentFileInfoReader, httpClient, configService, diskProvider, remotePathMappingService, logger)
+            ILocalizationService localizationService)
+            : base(torrentFileInfoReader, httpClient, configService, diskProvider, remotePathMappingService, logger, localizationService)
         {
             _proxy = proxy;
         }
@@ -108,8 +110,9 @@ namespace NzbDrone.Core.Download.Clients.FreeboxDownload
 
                     case FreeboxDownloadTaskStatus.Unknown:
                     default: // new status in API? default to downloading
-                        item.Message = "Unknown download state: " + torrent.Status;
+                        item.Message = _localizationService.GetLocalizedString("UnknownDownloadState",
-                        _logger.Info(item.Message);
+                            new Dictionary<string, object> { { "state", torrent.Status } });
+                        _logger.Info($"Unknown download state: {torrent.Status}");
                         item.Status = DownloadItemStatus.Downloading;
                         break;
                 }

src/NzbDrone.Core/Download/Clients/Hadouken/Hadouken.cs

@@ -7,6 +7,7 @@ using NzbDrone.Common.Extensions;
 using NzbDrone.Common.Http;
 using NzbDrone.Core.Configuration;
 using NzbDrone.Core.Download.Clients.Hadouken.Models;
+using NzbDrone.Core.Localization;
 using NzbDrone.Core.MediaFiles.TorrentInfo;
 using NzbDrone.Core.Parser.Model;
 using NzbDrone.Core.RemotePathMappings;
@@ -24,8 +25,9 @@ namespace NzbDrone.Core.Download.Clients.Hadouken
                         IConfigService configService,
                         IDiskProvider diskProvider,
                         IRemotePathMappingService remotePathMappingService,
-                        Logger logger)
+                        Logger logger,
-            : base(torrentFileInfoReader, httpClient, configService, diskProvider, remotePathMappingService, logger)
+                        ILocalizationService localizationService)
+            : base(torrentFileInfoReader, httpClient, configService, diskProvider, remotePathMappingService, logger, localizationService)
         {
             _proxy = proxy;
         }
@@ -159,18 +161,20 @@ namespace NzbDrone.Core.Download.Clients.Hadouken
                 if (version < new Version("5.1"))
                 {
                     return new ValidationFailure(string.Empty,
-                        "Old Hadouken client with unsupported API, need 5.1 or higher");
+                        _localizationService.GetLocalizedString("DownloadClientValidationErrorVersion",
+                            new Dictionary<string, object>
+                                { { "clientName", Name }, { "requiredVersion", "5.1" }, { "reportedVersion", version } }));
                 }
             }
             catch (DownloadClientAuthenticationException ex)
             {
                 _logger.Error(ex, ex.Message);
 
-                return new NzbDroneValidationFailure("Password", "Authentication failed");
+                return new NzbDroneValidationFailure("Password", _localizationService.GetLocalizedString("DownloadClientValidationAuthenticationFailure"));
             }
             catch (Exception ex)
             {
-                return new NzbDroneValidationFailure("Host", "Unable to connect to Hadouken")
+                return new NzbDroneValidationFailure("Host", _localizationService.GetLocalizedString("DownloadClientValidationUnableToConnect"))
                        {
                            DetailedDescription = ex.Message
                        };
@@ -188,7 +192,7 @@ namespace NzbDrone.Core.Download.Clients.Hadouken
             catch (Exception ex)
             {
                 _logger.Error(ex, ex.Message);
-                return new NzbDroneValidationFailure(string.Empty, "Failed to get the list of torrents: " + ex.Message);
+                return new NzbDroneValidationFailure(string.Empty, _localizationService.GetLocalizedString("DownloadClientValidationTestTorrents", new Dictionary<string, object> { { "exceptionMessage", ex.Message } }));
             }
 
             return null;

src/NzbDrone.Core/Download/Clients/Hadouken/HadoukenSettings.cs

@@ -39,10 +39,13 @@ namespace NzbDrone.Core.Download.Clients.Hadouken
         [FieldDefinition(1, Label = "Port", Type = FieldType.Textbox)]
         public int Port { get; set; }
 
-        [FieldDefinition(2, Label = "Use SSL", Type = FieldType.Checkbox, HelpText = "Use secure connection when connecting to Hadouken")]
+        [FieldDefinition(2, Label = "UseSsl", Type = FieldType.Checkbox, HelpText = "DownloadClientSettingsUseSslHelpText")]
+        [FieldToken(TokenField.HelpText, "UseSsl", "clientName", "Hadouken")]
         public bool UseSsl { get; set; }
 
-        [FieldDefinition(3, Label = "Url Base", Type = FieldType.Textbox, Advanced = true, HelpText = "Adds a prefix to the Hadouken url, e.g. http://[host]:[port]/[urlBase]/api")]
+        [FieldDefinition(3, Label = "UrlBase", Type = FieldType.Textbox, Advanced = true, HelpText = "DownloadClientSettingsUrlBaseHelpText")]
+        [FieldToken(TokenField.HelpText, "UrlBase", "clientName", "Hadouken")]
+        [FieldToken(TokenField.HelpText, "UrlBase", "url", "http://[host]:[port]/[urlBase]/api")]
         public string UrlBase { get; set; }
 
         [FieldDefinition(4, Label = "Username", Type = FieldType.Textbox, Privacy = PrivacyLevel.UserName)]
@@ -51,7 +54,7 @@ namespace NzbDrone.Core.Download.Clients.Hadouken
         [FieldDefinition(5, Label = "Password", Type = FieldType.Password, Privacy = PrivacyLevel.Password)]
         public string Password { get; set; }
 
-        [FieldDefinition(6, Label = "Category", Type = FieldType.Textbox)]
+        [FieldDefinition(6, Label = "Category", Type = FieldType.Textbox, HelpText = "DownloadClientSettingsCategoryHelpText")]
         public string Category { get; set; }
 
         public NzbDroneValidationResult Validate()

src/NzbDrone.Core/Download/Clients/NzbVortex/NzbVortex.cs

@@ -8,6 +8,7 @@ using NzbDrone.Common.Disk;
 using NzbDrone.Common.Extensions;
 using NzbDrone.Common.Http;
 using NzbDrone.Core.Configuration;
+using NzbDrone.Core.Localization;
 using NzbDrone.Core.Parser.Model;
 using NzbDrone.Core.RemotePathMappings;
 using NzbDrone.Core.Validation;
@@ -24,8 +25,9 @@ namespace NzbDrone.Core.Download.Clients.NzbVortex
                        IDiskProvider diskProvider,
                        IRemotePathMappingService remotePathMappingService,
                        IValidateNzbs nzbValidationService,
-                       Logger logger)
+                       Logger logger,
-            : base(httpClient, configService, diskProvider, remotePathMappingService, nzbValidationService, logger)
+                       ILocalizationService localizationService)
+            : base(httpClient, configService, diskProvider, remotePathMappingService, nzbValidationService, logger, localizationService)
         {
             _proxy = proxy;
         }
@@ -162,7 +164,7 @@ namespace NzbDrone.Core.Download.Clients.NzbVortex
             {
                 _logger.Error(ex, "Unable to connect to NZBVortex");
 
-                return new NzbDroneValidationFailure("Host", "Unable to connect to NZBVortex")
+                return new NzbDroneValidationFailure("Host", _localizationService.GetLocalizedString("DownloadClientValidationUnableToConnect", new Dictionary<string, object> { { "clientName", Name } }))
                        {
                            DetailedDescription = ex.Message
                        };
@@ -180,13 +182,16 @@ namespace NzbDrone.Core.Download.Clients.NzbVortex
 
                 if (version.Major < 2 || (version.Major == 2 && version.Minor < 3))
                 {
-                    return new ValidationFailure("Host", "NZBVortex needs to be updated");
+                    return new ValidationFailure("Host",
+                        _localizationService.GetLocalizedString("DownloadClientValidationErrorVersion",
+                            new Dictionary<string, object>
+                                { { "clientName", Name }, { "requiredVersion", "2.3" }, { "reportedVersion", version } }));
                 }
             }
             catch (Exception ex)
             {
                 _logger.Error(ex, "Unable to connect to NZBVortex");
-                return new ValidationFailure("Host", "Unable to connect to NZBVortex");
+                return new NzbDroneValidationFailure("Host",  _localizationService.GetLocalizedString("DownloadClientValidationUnableToConnect", new Dictionary<string, object> { { "clientName", Name } }));
             }
 
             return null;
@@ -200,7 +205,7 @@ namespace NzbDrone.Core.Download.Clients.NzbVortex
             }
             catch (NzbVortexAuthenticationException)
             {
-                return new ValidationFailure("ApiKey", "API Key Incorrect");
+                return new ValidationFailure("ApiKey", _localizationService.GetLocalizedString("DownloadClientValidationApiKeyIncorrect"));
             }
 
             return null;
@@ -214,9 +219,9 @@ namespace NzbDrone.Core.Download.Clients.NzbVortex
             {
                 if (Settings.TvCategory.IsNotNullOrWhiteSpace())
                 {
-                    return new NzbDroneValidationFailure("TvCategory", "Group does not exist")
+                    return new NzbDroneValidationFailure("TvCategory", _localizationService.GetLocalizedString("DownloadClientValidationGroupMissing"))
                     {
-                        DetailedDescription = "The Group you entered doesn't exist in NzbVortex. Go to NzbVortex to create it."
+                        DetailedDescription = _localizationService.GetLocalizedString("DownloadClientValidationGroupMissingDetail", new Dictionary<string, object> { { "clientName", Name } })
                     };
                 }
             }
@@ -243,7 +248,7 @@ namespace NzbDrone.Core.Download.Clients.NzbVortex
 
             if (filesResponse.Count > 1)
             {
-                var message = string.Format("Download contains multiple files and is not in a job folder: {0}", outputPath);
+                var message = _localizationService.GetLocalizedString("DownloadClientNzbVortexMultipleFilesMessage", new Dictionary<string, object> { { "outputPath", outputPath } });
 
                 queueItem.Status = DownloadItemStatus.Warning;
                 queueItem.Message = message;

src/NzbDrone.Core/Download/Clients/NzbVortex/NzbVortexSettings.cs

@@ -42,19 +42,21 @@ namespace NzbDrone.Core.Download.Clients.NzbVortex
         [FieldDefinition(1, Label = "Port", Type = FieldType.Textbox)]
         public int Port { get; set; }
 
-        [FieldDefinition(2, Label = "Url Base", Type = FieldType.Textbox, Advanced = true, HelpText = "Adds a prefix to the NZBVortex url, e.g. http://[host]:[port]/[urlBase]/api")]
+        [FieldDefinition(2, Label = "UrlBase", Type = FieldType.Textbox, Advanced = true, HelpText = "DownloadClientSettingsUrlBaseHelpText")]
+        [FieldToken(TokenField.HelpText, "UrlBase", "clientName", "NZBVortex")]
+        [FieldToken(TokenField.HelpText, "UrlBase", "url", "http://[host]:[port]/[urlBase]/api")]
         public string UrlBase { get; set; }
 
-        [FieldDefinition(3, Label = "API Key", Type = FieldType.Textbox, Privacy = PrivacyLevel.ApiKey)]
+        [FieldDefinition(3, Label = "ApiKey", Type = FieldType.Textbox, Privacy = PrivacyLevel.ApiKey)]
         public string ApiKey { get; set; }
 
-        [FieldDefinition(4, Label = "Group", Type = FieldType.Textbox, HelpText = "Adding a category specific to Sonarr avoids conflicts with unrelated non-Sonarr downloads. Using a category is optional, but strongly recommended.")]
+        [FieldDefinition(4, Label = "Group", Type = FieldType.Textbox, HelpText = "DownloadClientSettingsCategoryHelpText")]
         public string TvCategory { get; set; }
 
-        [FieldDefinition(5, Label = "Recent Priority", Type = FieldType.Select, SelectOptions = typeof(NzbVortexPriority), HelpText = "Priority to use when grabbing episodes that aired within the last 14 days")]
+        [FieldDefinition(5, Label = "DownloadClientSettingsRecentPriority", Type = FieldType.Select, SelectOptions = typeof(NzbVortexPriority), HelpText = "DownloadClientSettingsRecentPriorityHelpText")]
         public int RecentTvPriority { get; set; }
 
-        [FieldDefinition(6, Label = "Older Priority", Type = FieldType.Select, SelectOptions = typeof(NzbVortexPriority), HelpText = "Priority to use when grabbing episodes that aired over 14 days ago")]
+        [FieldDefinition(6, Label = "DownloadClientSettingsOlderPriority", Type = FieldType.Select, SelectOptions = typeof(NzbVortexPriority), HelpText = "DownloadClientSettingsOlderPriorityHelpText")]
         public int OlderTvPriority { get; set; }
 
         public NzbDroneValidationResult Validate()

src/NzbDrone.Core/Download/Clients/Nzbget/Nzbget.cs

@@ -10,6 +10,7 @@ using NzbDrone.Common.Extensions;
 using NzbDrone.Common.Http;
 using NzbDrone.Core.Configuration;
 using NzbDrone.Core.Exceptions;
+using NzbDrone.Core.Localization;
 using NzbDrone.Core.Parser.Model;
 using NzbDrone.Core.RemotePathMappings;
 using NzbDrone.Core.Validation;
@@ -28,8 +29,9 @@ namespace NzbDrone.Core.Download.Clients.Nzbget
                       IDiskProvider diskProvider,
                       IRemotePathMappingService remotePathMappingService,
                       IValidateNzbs nzbValidationService,
-                      Logger logger)
+                      Logger logger,
-            : base(httpClient, configService, diskProvider, remotePathMappingService, nzbValidationService, logger)
+                      ILocalizationService localizationService)
+            : base(httpClient, configService, diskProvider, remotePathMappingService, nzbValidationService, logger, localizationService)
         {
             _proxy = proxy;
         }
@@ -124,7 +126,13 @@ namespace NzbDrone.Core.Download.Clients.Nzbget
                 historyItem.TotalSize = MakeInt64(item.FileSizeHi, item.FileSizeLo);
                 historyItem.OutputPath = _remotePathMappingService.RemapRemoteToLocal(Settings.Host, new OsPath(itemDir));
                 historyItem.Category = item.Category;
-                historyItem.Message = $"PAR Status: {item.ParStatus} - Unpack Status: {item.UnpackStatus} - Move Status: {item.MoveStatus} - Script Status: {item.ScriptStatus} - Delete Status: {item.DeleteStatus} - Mark Status: {item.MarkStatus}";
+                historyItem.Message = _localizationService.GetLocalizedString("NzbgetHistoryItemMessage",
+                    new Dictionary<string, object>
+                    {
+                        { "parStatus", item.ParStatus }, { "unpackStatus", item.UnpackStatus },
+                        { "moveStatus", item.MoveStatus }, { "scriptStaus", item.ScriptStatus },
+                        { "deleteStatus", item.DeleteStatus }, { "markStatus", item.MarkStatus }
+                    });
                 historyItem.Status = DownloadItemStatus.Completed;
                 historyItem.RemainingTime = TimeSpan.Zero;
                 historyItem.CanMoveFiles = true;
@@ -270,18 +278,23 @@ namespace NzbDrone.Core.Download.Clients.Nzbget
 
                 if (Version.Parse(version) < Version.Parse("12.0"))
                 {
-                    return new ValidationFailure(string.Empty, "Nzbget version too low, need 12.0 or higher");
+                    return new ValidationFailure(string.Empty,
+                        _localizationService.GetLocalizedString("DownloadClientValidationErrorVersion",
+                            new Dictionary<string, object>
+                                { { "clientName", Name }, { "requiredVersion", "12.0" }, { "reportedVersion", version } }));
                 }
             }
             catch (Exception ex)
             {
                 if (ex.Message.ContainsIgnoreCase("Authentication failed"))
                 {
-                    return new ValidationFailure("Username", "Authentication failed");
+                    return new ValidationFailure("Username", _localizationService.GetLocalizedString("DownloadClientValidationAuthenticationFailure"));
                 }
 
                 _logger.Error(ex, "Unable to connect to NZBGet");
-                return new ValidationFailure("Host", "Unable to connect to NZBGet");
+                return new ValidationFailure("Host",
+                    _localizationService.GetLocalizedString("DownloadClientValidationUnableToConnect",
+                        new Dictionary<string, object> { { "clientName", Name } }));
             }
 
             return null;
@@ -294,10 +307,10 @@ namespace NzbDrone.Core.Download.Clients.Nzbget
 
             if (!Settings.TvCategory.IsNullOrWhiteSpace() && !categories.Any(v => v.Name == Settings.TvCategory))
             {
-                return new NzbDroneValidationFailure("TvCategory", "Category does not exist")
+                return new NzbDroneValidationFailure("TvCategory", _localizationService.GetLocalizedString("DownloadClientValidationCategoryMissing"))
                 {
                     InfoLink = _proxy.GetBaseUrl(Settings),
-                    DetailedDescription = "The Category your entered doesn't exist in NzbGet. Go to NzbGet to create it."
+                    DetailedDescription = _localizationService.GetLocalizedString("DownloadClientValidationCategoryMissingDetail", new Dictionary<string, object> { { "clientName", Name } })
                 };
             }
 
@@ -311,18 +324,18 @@ namespace NzbDrone.Core.Download.Clients.Nzbget
             var keepHistory = config.GetValueOrDefault("KeepHistory", "7");
             if (!int.TryParse(keepHistory, NumberStyles.None, CultureInfo.InvariantCulture, out var value) || value == 0)
             {
-                return new NzbDroneValidationFailure(string.Empty, "NzbGet setting KeepHistory should be greater than 0")
+                return new NzbDroneValidationFailure(string.Empty, _localizationService.GetLocalizedString("DownloadClientNzbgetValidationKeepHistoryZero"))
                 {
                     InfoLink = _proxy.GetBaseUrl(Settings),
-                    DetailedDescription = "NzbGet setting KeepHistory is set to 0. Which prevents Sonarr from seeing completed downloads."
+                    DetailedDescription = _localizationService.GetLocalizedString("DownloadClientNzbgetValidationKeepHistoryZeroDetail")
                 };
             }
             else if (value > 25000)
             {
-                return new NzbDroneValidationFailure(string.Empty, "NzbGet setting KeepHistory should be less than 25000")
+                return new NzbDroneValidationFailure(string.Empty, _localizationService.GetLocalizedString("DownloadClientNzbgetValidationKeepHistoryOverMax"))
                 {
                     InfoLink = _proxy.GetBaseUrl(Settings),
-                    DetailedDescription = "NzbGet setting KeepHistory is set too high."
+                    DetailedDescription = _localizationService.GetLocalizedString("DownloadClientNzbgetValidationKeepHistoryOverMaxDetail")
                 };
             }
 

src/NzbDrone.Core/Download/Clients/Nzbget/NzbgetSettings.cs

@@ -40,10 +40,13 @@ namespace NzbDrone.Core.Download.Clients.Nzbget
         [FieldDefinition(1, Label = "Port", Type = FieldType.Textbox)]
         public int Port { get; set; }
 
-        [FieldDefinition(2, Label = "Use SSL", Type = FieldType.Checkbox, HelpText = "Use secure connection when connecting to NZBGet")]
+        [FieldDefinition(2, Label = "UseSsl", Type = FieldType.Checkbox, HelpText = "DownloadClientSettingsUseSslHelpText")]
+        [FieldToken(TokenField.HelpText, "UseSsl", "clientName", "NZBGet")]
         public bool UseSsl { get; set; }
 
-        [FieldDefinition(3, Label = "Url Base", Type = FieldType.Textbox, Advanced = true, HelpText = "Adds a prefix to the nzbget url, e.g. http://[host]:[port]/[urlBase]/jsonrpc")]
+        [FieldDefinition(3, Label = "UrlBase", Type = FieldType.Textbox, Advanced = true, HelpText = "DownloadClientSettingsUrlBaseHelpText")]
+        [FieldToken(TokenField.HelpText, "UrlBase", "clientName", "NZBGet")]
+        [FieldToken(TokenField.HelpText, "UrlBase", "url", "http://[host]:[port]/[urlBase]/jsonrpc")]
         public string UrlBase { get; set; }
 
         [FieldDefinition(4, Label = "Username", Type = FieldType.Textbox, Privacy = PrivacyLevel.UserName)]
@@ -52,16 +55,16 @@ namespace NzbDrone.Core.Download.Clients.Nzbget
         [FieldDefinition(5, Label = "Password", Type = FieldType.Password, Privacy = PrivacyLevel.Password)]
         public string Password { get; set; }
 
-        [FieldDefinition(6, Label = "Category", Type = FieldType.Textbox, HelpText = "Adding a category specific to Sonarr avoids conflicts with unrelated non-Sonarr downloads. Using a category is optional, but strongly recommended.")]
+        [FieldDefinition(6, Label = "Category", Type = FieldType.Textbox, HelpText = "DownloadClientSettingsCategoryHelpText")]
         public string TvCategory { get; set; }
 
-        [FieldDefinition(7, Label = "Recent Priority", Type = FieldType.Select, SelectOptions = typeof(NzbgetPriority), HelpText = "Priority to use when grabbing episodes that aired within the last 14 days")]
+        [FieldDefinition(7, Label = "DownloadClientSettingsRecentPriority", Type = FieldType.Select, SelectOptions = typeof(NzbgetPriority), HelpText = "DownloadClientSettingsRecentPriorityHelpText")]
         public int RecentTvPriority { get; set; }
 
-        [FieldDefinition(8, Label = "Older Priority", Type = FieldType.Select, SelectOptions = typeof(NzbgetPriority), HelpText = "Priority to use when grabbing episodes that aired over 14 days ago")]
+        [FieldDefinition(8, Label = "DownloadClientSettingsOlderPriority", Type = FieldType.Select, SelectOptions = typeof(NzbgetPriority), HelpText = "DownloadClientSettingsOlderPriorityHelpText")]
         public int OlderTvPriority { get; set; }
 
-        [FieldDefinition(9, Label = "Add Paused", Type = FieldType.Checkbox, HelpText = "This option requires at least NzbGet version 16.0")]
+        [FieldDefinition(9, Label = "DownloadClientSettingsAddPaused", Type = FieldType.Checkbox, HelpText = "DownloadClientNzbgetSettingsAddPausedHelpText")]
         public bool AddPaused { get; set; }
 
         public NzbDroneValidationResult Validate()

src/NzbDrone.Core/Download/Clients/Pneumatic/Pneumatic.cs

@@ -9,6 +9,7 @@ using NzbDrone.Common.Extensions;
 using NzbDrone.Common.Http;
 using NzbDrone.Core.Configuration;
 using NzbDrone.Core.Indexers;
+using NzbDrone.Core.Localization;
 using NzbDrone.Core.Organizer;
 using NzbDrone.Core.Parser.Model;
 using NzbDrone.Core.RemotePathMappings;
@@ -23,8 +24,9 @@ namespace NzbDrone.Core.Download.Clients.Pneumatic
                          IConfigService configService,
                          IDiskProvider diskProvider,
                          IRemotePathMappingService remotePathMappingService,
-                         Logger logger)
+                         Logger logger,
-            : base(configService, diskProvider, remotePathMappingService, logger)
+                         ILocalizationService localizationService)
+            : base(configService, diskProvider, remotePathMappingService, logger, localizationService)
         {
             _httpClient = httpClient;
         }

src/NzbDrone.Core/Download/Clients/Pneumatic/PneumaticSettings.cs

@@ -19,10 +19,10 @@ namespace NzbDrone.Core.Download.Clients.Pneumatic
     {
         private static readonly PneumaticSettingsValidator Validator = new PneumaticSettingsValidator();
 
-        [FieldDefinition(0, Label = "Nzb Folder", Type = FieldType.Path, HelpText = "This folder will need to be reachable from XBMC")]
+        [FieldDefinition(0, Label = "DownloadClientPneumaticSettingsNzbFolder", Type = FieldType.Path, HelpText = "DownloadClientPneumaticSettingsNzbFolderHelpText")]
         public string NzbFolder { get; set; }
 
-        [FieldDefinition(1, Label = "Strm Folder", Type = FieldType.Path, HelpText = ".strm files in this folder will be import by drone")]
+        [FieldDefinition(1, Label = "DownloadClientPneumaticSettingsStrmFolder", Type = FieldType.Path, HelpText = "DownloadClientPneumaticSettingsStrmFolderHelpText")]
         public string StrmFolder { get; set; }
 
         public NzbDroneValidationResult Validate()

src/NzbDrone.Core/Download/Clients/QBittorrent/QBittorrent.cs

@@ -9,6 +9,7 @@ using NzbDrone.Common.Disk;
 using NzbDrone.Common.Extensions;
 using NzbDrone.Common.Http;
 using NzbDrone.Core.Configuration;
+using NzbDrone.Core.Localization;
 using NzbDrone.Core.MediaFiles.TorrentInfo;
 using NzbDrone.Core.Parser.Model;
 using NzbDrone.Core.RemotePathMappings;
@@ -34,8 +35,9 @@ namespace NzbDrone.Core.Download.Clients.QBittorrent
                            IDiskProvider diskProvider,
                            IRemotePathMappingService remotePathMappingService,
                            ICacheManager cacheManager,
-                           Logger logger)
+                           Logger logger,
-            : base(torrentFileInfoReader, httpClient, configService, diskProvider, remotePathMappingService, logger)
+                           ILocalizationService localizationService)
+            : base(torrentFileInfoReader, httpClient, configService, diskProvider, remotePathMappingService, logger, localizationService)
         {
             _proxySelector = proxySelector;
 
@@ -241,7 +243,7 @@ namespace NzbDrone.Core.Download.Clients.QBittorrent
                 {
                     case "error": // some error occurred, applies to paused torrents, warning so failed download handling isn't triggered
                         item.Status = DownloadItemStatus.Warning;
-                        item.Message = "qBittorrent is reporting an error";
+                        item.Message = _localizationService.GetLocalizedString("DownloadClientQbittorrentTorrentStateError");
                         break;
 
                     case "pausedDL": // torrent is paused and has NOT finished downloading
@@ -266,24 +268,24 @@ namespace NzbDrone.Core.Download.Clients.QBittorrent
 
                     case "stalledDL": // torrent is being downloaded, but no connection were made
                         item.Status = DownloadItemStatus.Warning;
-                        item.Message = "The download is stalled with no connections";
+                        item.Message = _localizationService.GetLocalizedString("DownloadClientQbittorrentTorrentStateStalled");
                         break;
 
                     case "missingFiles": // torrent is missing files
                         item.Status = DownloadItemStatus.Warning;
-                        item.Message = "The download is missing files";
+                        item.Message = _localizationService.GetLocalizedString("DownloadClientQbittorrentTorrentStateMissingFiles");
                         break;
 
                     case "metaDL": // torrent magnet is being downloaded
                         if (config.DhtEnabled)
                         {
                             item.Status = DownloadItemStatus.Queued;
-                            item.Message = "qBittorrent is downloading metadata";
+                            item.Message = _localizationService.GetLocalizedString("DownloadClientQbittorrentTorrentStateMetadata");
                         }
                         else
                         {
                             item.Status = DownloadItemStatus.Warning;
-                            item.Message = "qBittorrent cannot resolve magnet link with DHT disabled";
+                            item.Message = _localizationService.GetLocalizedString("DownloadClientQbittorrentTorrentStateDhtDisabled");
                         }
 
                         break;
@@ -296,8 +298,8 @@ namespace NzbDrone.Core.Download.Clients.QBittorrent
                         break;
 
                     default: // new status in API? default to downloading
-                        item.Message = "Unknown download state: " + torrent.State;
+                        item.Message = _localizationService.GetLocalizedString("DownloadClientQbittorrentTorrentStateUnknown", new Dictionary<string, object> { { "state", torrent.State } });
-                        _logger.Info(item.Message);
+                        _logger.Info($"Unknown download state: {torrent.State}");
                         item.Status = DownloadItemStatus.Downloading;
                         break;
                 }
@@ -311,7 +313,7 @@ namespace NzbDrone.Core.Download.Clients.QBittorrent
                     else
                     {
                         item.Status = DownloadItemStatus.Warning;
-                        item.Message = "Unable to Import. Path matches client base download directory, it's possible 'Keep top-level folder' is disabled for this torrent or 'Torrent Content Layout' is NOT set to 'Original' or 'Create Subfolder'?";
+                        item.Message = _localizationService.GetLocalizedString("DownloadClientQbittorrentTorrentStatePathError");
                     }
                 }
 
@@ -415,29 +417,30 @@ namespace NzbDrone.Core.Download.Clients.QBittorrent
                 if (version < Version.Parse("1.5"))
                 {
                     // API version 5 introduced the "save_path" property in /query/torrents
-                    return new NzbDroneValidationFailure("Host", "Unsupported client version")
+                    return new NzbDroneValidationFailure("Host", _localizationService.GetLocalizedString("DownloadClientValidationErrorVersion",
-                    {
+                            new Dictionary<string, object>
-                        DetailedDescription = "Please upgrade to qBittorrent version 3.2.4 or higher."
+                            {
-                    };
+                                { "clientName", Name }, { "requiredVersion", "3.2.4" }, { "reportedVersion", version }
+                            }));
                 }
                 else if (version < Version.Parse("1.6"))
                 {
                     // API version 6 introduced support for labels
                     if (Settings.TvCategory.IsNotNullOrWhiteSpace())
                     {
-                        return new NzbDroneValidationFailure("Category", "Category is not supported")
+                        return new NzbDroneValidationFailure("Category", _localizationService.GetLocalizedString("DownloadClientQbittorrentValidationCategoryUnsupported"))
                         {
-                            DetailedDescription = "Labels are not supported until qBittorrent version 3.3.0. Please upgrade or try again with an empty Category."
+                            DetailedDescription = _localizationService.GetLocalizedString("DownloadClientQbittorrentValidationCategoryUnsupportedDetail")
                         };
                     }
                 }
                 else if (Settings.TvCategory.IsNullOrWhiteSpace())
                 {
                     // warn if labels are supported, but category is not provided
-                    return new NzbDroneValidationFailure("TvCategory", "Category is recommended")
+                    return new NzbDroneValidationFailure("TvCategory", _localizationService.GetLocalizedString("DownloadClientQbittorrentValidationCategoryRecommended"))
                     {
                         IsWarning = true,
-                        DetailedDescription = "Sonarr will not attempt to import completed downloads without a category."
+                        DetailedDescription = _localizationService.GetLocalizedString("DownloadClientQbittorrentValidationCategoryRecommendedDetail")
                     };
                 }
 
@@ -445,18 +448,18 @@ namespace NzbDrone.Core.Download.Clients.QBittorrent
                 var config = Proxy.GetConfig(Settings);
                 if ((config.MaxRatioEnabled || config.MaxSeedingTimeEnabled) && (config.MaxRatioAction == QBittorrentMaxRatioAction.Remove || config.MaxRatioAction == QBittorrentMaxRatioAction.DeleteFiles))
                 {
-                    return new NzbDroneValidationFailure(string.Empty, "qBittorrent is configured to remove torrents when they reach their Share Ratio Limit")
+                    return new NzbDroneValidationFailure(string.Empty, _localizationService.GetLocalizedString("DownloadClientQbittorrentValidationRemovesAtRatioLimit"))
                     {
-                        DetailedDescription = "Sonarr will be unable to perform Completed Download Handling as configured. You can fix this in qBittorrent ('Tools -> Options...' in the menu) by changing 'Options -> BitTorrent -> Share Ratio Limiting' from 'Remove them' to 'Pause them'."
+                        DetailedDescription = _localizationService.GetLocalizedString("DownloadClientQbittorrentValidationRemovesAtRatioLimitDetail")
                     };
                 }
             }
             catch (DownloadClientAuthenticationException ex)
             {
                 _logger.Error(ex, ex.Message);
-                return new NzbDroneValidationFailure("Username", "Authentication failure")
+                return new NzbDroneValidationFailure("Username", _localizationService.GetLocalizedString("DownloadClientValidationAuthenticationFailure"))
                 {
-                    DetailedDescription = "Please verify your username and password."
+                    DetailedDescription = _localizationService.GetLocalizedString("DownloadClientValidationAuthenticationFailureDetail", new Dictionary<string, object> { { "clientName", Name } })
                 };
             }
             catch (WebException ex)
@@ -464,19 +467,19 @@ namespace NzbDrone.Core.Download.Clients.QBittorrent
                 _logger.Error(ex, "Unable to connect to qBittorrent");
                 if (ex.Status == WebExceptionStatus.ConnectFailure)
                 {
-                    return new NzbDroneValidationFailure("Host", "Unable to connect")
+                    return new NzbDroneValidationFailure("Host", _localizationService.GetLocalizedString("DownloadClientValidationUnableToConnect", new Dictionary<string, object> { { "clientName", Name } }))
                     {
-                        DetailedDescription = "Please verify the hostname and port."
+                        DetailedDescription = _localizationService.GetLocalizedString("DownloadClientValidationUnableToConnectDetail")
                     };
                 }
 
-                return new NzbDroneValidationFailure(string.Empty, "Unknown exception: " + ex.Message);
+                return new NzbDroneValidationFailure(string.Empty, _localizationService.GetLocalizedString("DownloadClientValidationUnknownException", new Dictionary<string, object> { { "exception", ex.Message } }));
             }
             catch (Exception ex)
             {
                 _logger.Error(ex, "Unable to test qBittorrent");
 
-                return new NzbDroneValidationFailure("Host", "Unable to connect to qBittorrent")
+                return new NzbDroneValidationFailure("Host", _localizationService.GetLocalizedString("DownloadClientValidationUnableToConnect", new Dictionary<string, object> { { "clientName", Name } }))
                 {
                     DetailedDescription = ex.Message
                 };
@@ -508,9 +511,9 @@ namespace NzbDrone.Core.Download.Clients.QBittorrent
 
                 if (!labels.ContainsKey(Settings.TvCategory))
                 {
-                    return new NzbDroneValidationFailure("TvCategory", "Configuration of label failed")
+                    return new NzbDroneValidationFailure("TvCategory", _localizationService.GetLocalizedString("DownloadClientQbittorrentValidationCategoryAddFailure"))
                     {
-                        DetailedDescription = "Sonarr was unable to add the label to qBittorrent."
+                        DetailedDescription = _localizationService.GetLocalizedString("DownloadClientQbittorrentValidationCategoryAddFailureDetail")
                     };
                 }
             }
@@ -522,9 +525,9 @@ namespace NzbDrone.Core.Download.Clients.QBittorrent
 
                 if (!labels.ContainsKey(Settings.TvImportedCategory))
                 {
-                    return new NzbDroneValidationFailure("TvImportedCategory", "Configuration of label failed")
+                    return new NzbDroneValidationFailure("TvImportedCategory", _localizationService.GetLocalizedString("DownloadClientQbittorrentValidationCategoryAddFailure"))
                     {
-                        DetailedDescription = "Sonarr was unable to add the label to qBittorrent."
+                        DetailedDescription = _localizationService.GetLocalizedString("DownloadClientQbittorrentValidationCategoryAddFailureDetail")
                     };
                 }
             }
@@ -550,18 +553,24 @@ namespace NzbDrone.Core.Download.Clients.QBittorrent
                 {
                     if (!recentPriorityDefault)
                     {
-                        return new NzbDroneValidationFailure(nameof(Settings.RecentTvPriority), "Queueing not enabled") { DetailedDescription = "Torrent Queueing is not enabled in your qBittorrent settings. Enable it in qBittorrent or select 'Last' as priority." };
+                        return new NzbDroneValidationFailure(nameof(Settings.RecentTvPriority), _localizationService.GetLocalizedString("DownloadClientQbittorrentValidationQueueingNotEnabled"))
+                        {
+                            DetailedDescription = _localizationService.GetLocalizedString("DownloadClientQbittorrentValidationQueueingNotEnabledDetail")
+                        };
                     }
                     else if (!olderPriorityDefault)
                     {
-                        return new NzbDroneValidationFailure(nameof(Settings.OlderTvPriority), "Queueing not enabled") { DetailedDescription = "Torrent Queueing is not enabled in your qBittorrent settings. Enable it in qBittorrent or select 'Last' as priority." };
+                        return new NzbDroneValidationFailure(nameof(Settings.OlderTvPriority), _localizationService.GetLocalizedString("DownloadClientQbittorrentValidationQueueingNotEnabled"))
+                        {
+                            DetailedDescription = _localizationService.GetLocalizedString("DownloadClientQbittorrentValidationQueueingNotEnabledDetail")
+                        };
                     }
                 }
             }
             catch (Exception ex)
             {
                 _logger.Error(ex, "Failed to test qBittorrent");
-                return new NzbDroneValidationFailure(string.Empty, "Unknown exception: " + ex.Message);
+                return new NzbDroneValidationFailure(string.Empty, _localizationService.GetLocalizedString("DownloadClientValidationUnknownException", new Dictionary<string, object> { { "exception", ex.Message } }));
             }
 
             return null;
@@ -576,7 +585,7 @@ namespace NzbDrone.Core.Download.Clients.QBittorrent
             catch (Exception ex)
             {
                 _logger.Error(ex, "Failed to get torrents");
-                return new NzbDroneValidationFailure(string.Empty, "Failed to get the list of torrents: " + ex.Message);
+                return new NzbDroneValidationFailure(string.Empty, _localizationService.GetLocalizedString("DownloadClientValidationTestTorrents", new Dictionary<string, object> { { "exceptionMessage", ex.Message } }));
             }
 
             return null;

src/NzbDrone.Core/Download/Clients/QBittorrent/QBittorrentSettings.cs

@@ -36,10 +36,12 @@ namespace NzbDrone.Core.Download.Clients.QBittorrent
         [FieldDefinition(1, Label = "Port", Type = FieldType.Textbox)]
         public int Port { get; set; }
 
-        [FieldDefinition(2, Label = "Use SSL", Type = FieldType.Checkbox, HelpText = "Use a secure connection. See Options -> Web UI -> 'Use HTTPS instead of HTTP' in qBittorrent.")]
+        [FieldDefinition(2, Label = "UseSsl", Type = FieldType.Checkbox, HelpText = "DownloadClientQbittorrentSettingsUseSslHelpText")]
         public bool UseSsl { get; set; }
 
-        [FieldDefinition(3, Label = "Url Base", Type = FieldType.Textbox, Advanced = true, HelpText = "Adds a prefix to the qBittorrent url, e.g. http://[host]:[port]/[urlBase]/api")]
+        [FieldDefinition(3, Label = "UrlBase", Type = FieldType.Textbox, Advanced = true, HelpText = "DownloadClientSettingsUrlBaseHelpText")]
+        [FieldToken(TokenField.HelpText, "UrlBase", "clientName", "qBittorrent")]
+        [FieldToken(TokenField.HelpText, "UrlBase", "url", "http://[host]:[port]/[urlBase]/api")]
         public string UrlBase { get; set; }
 
         [FieldDefinition(4, Label = "Username", Type = FieldType.Textbox, Privacy = PrivacyLevel.UserName)]
@@ -48,25 +50,25 @@ namespace NzbDrone.Core.Download.Clients.QBittorrent
         [FieldDefinition(5, Label = "Password", Type = FieldType.Password, Privacy = PrivacyLevel.Password)]
         public string Password { get; set; }
 
-        [FieldDefinition(6, Label = "Category", Type = FieldType.Textbox, HelpText = "Adding a category specific to Sonarr avoids conflicts with unrelated non-Sonarr downloads. Using a category is optional, but strongly recommended.")]
+        [FieldDefinition(6, Label = "Category", Type = FieldType.Textbox, HelpText = "DownloadClientSettingsCategoryHelpText")]
         public string TvCategory { get; set; }
 
-        [FieldDefinition(7, Label = "Post-Import Category", Type = FieldType.Textbox, Advanced = true, HelpText = "Category for Sonarr to set after it has imported the download. Sonarr will not remove the torrent if seeding has finished. Leave blank to keep same category.")]
+        [FieldDefinition(7, Label = "PostImportCategory", Type = FieldType.Textbox, Advanced = true, HelpText = "DownloadClientSettingsPostImportCategoryHelpText")]
         public string TvImportedCategory { get; set; }
 
-        [FieldDefinition(8, Label = "Recent Priority", Type = FieldType.Select, SelectOptions = typeof(QBittorrentPriority), HelpText = "Priority to use when grabbing episodes that aired within the last 14 days")]
+        [FieldDefinition(8, Label = "DownloadClientSettingsRecentPriority", Type = FieldType.Select, SelectOptions = typeof(QBittorrentPriority), HelpText = "DownloadClientSettingsRecentPriorityHelpText")]
         public int RecentTvPriority { get; set; }
 
-        [FieldDefinition(9, Label = "Older Priority", Type = FieldType.Select, SelectOptions = typeof(QBittorrentPriority), HelpText = "Priority to use when grabbing episodes that aired over 14 days ago")]
+        [FieldDefinition(9, Label = "DownloadClientSettingsOlderPriority", Type = FieldType.Select, SelectOptions = typeof(QBittorrentPriority), HelpText = "DownloadClientSettingsOlderPriorityHelpText")]
         public int OlderTvPriority { get; set; }
 
-        [FieldDefinition(10, Label = "Initial State", Type = FieldType.Select, SelectOptions = typeof(QBittorrentState), HelpText = "Initial state for torrents added to qBittorrent. Note that Forced Torrents do not abide by seed restrictions")]
+        [FieldDefinition(10, Label = "DownloadClientSettingsInitialState", Type = FieldType.Select, SelectOptions = typeof(QBittorrentState), HelpText = "DownloadClientQbittorrentSettingsInitialStateHelpText")]
         public int InitialState { get; set; }
 
-        [FieldDefinition(11, Label = "Sequential Order", Type = FieldType.Checkbox, HelpText = "Download in sequential order (qBittorrent 4.1.0+)")]
+        [FieldDefinition(11, Label = "DownloadClientQbittorrentSettingsSequentialOrder", Type = FieldType.Checkbox, HelpText = "DownloadClientQbittorrentSettingsSequentialOrderHelpText")]
         public bool SequentialOrder { get; set; }
 
-        [FieldDefinition(12, Label = "First and Last First", Type = FieldType.Checkbox, HelpText = "Download first and last pieces first (qBittorrent 4.1.0+)")]
+        [FieldDefinition(12, Label = "DownloadClientQbittorrentSettingsFirstAndLastFirst", Type = FieldType.Checkbox, HelpText = "DownloadClientQbittorrentSettingsFirstAndLastFirstHelpText")]
         public bool FirstAndLast { get; set; }
 
         public NzbDroneValidationResult Validate()

src/NzbDrone.Core/Download/Clients/Sabnzbd/Sabnzbd.cs

@@ -10,6 +10,7 @@ using NzbDrone.Common.Extensions;
 using NzbDrone.Common.Http;
 using NzbDrone.Core.Configuration;
 using NzbDrone.Core.Exceptions;
+using NzbDrone.Core.Localization;
 using NzbDrone.Core.Parser.Model;
 using NzbDrone.Core.RemotePathMappings;
 using NzbDrone.Core.Validation;
@@ -26,8 +27,9 @@ namespace NzbDrone.Core.Download.Clients.Sabnzbd
                        IDiskProvider diskProvider,
                        IRemotePathMappingService remotePathMappingService,
                        IValidateNzbs nzbValidationService,
-                       Logger logger)
+                       Logger logger,
-            : base(httpClient, configService, diskProvider, remotePathMappingService, nzbValidationService, logger)
+                       ILocalizationService localizationService)
+            : base(httpClient, configService, diskProvider, remotePathMappingService, nzbValidationService, logger, localizationService)
         {
             _proxy = proxy;
         }
@@ -381,15 +383,15 @@ namespace NzbDrone.Core.Download.Clients.Sabnzbd
 
                 if (version == null)
                 {
-                    return new ValidationFailure("Version", "Unknown Version: " + rawVersion);
+                    return new ValidationFailure("Version", _localizationService.GetLocalizedString("DownloadClientSabnzbdValidationUnknownVersion", new Dictionary<string, object> { { "rawVersion", rawVersion ?? "" } }));
                 }
 
                 if (rawVersion.Equals("develop", StringComparison.InvariantCultureIgnoreCase))
                 {
-                    return new NzbDroneValidationFailure("Version", "Sabnzbd develop version, assuming version 3.0.0 or higher.")
+                    return new NzbDroneValidationFailure("Version", _localizationService.GetLocalizedString("DownloadClientSabnzbdValidationDevelopVersion"))
                     {
                         IsWarning = true,
-                        DetailedDescription = "Sonarr may not be able to support new features added to SABnzbd when running develop versions."
+                        DetailedDescription = _localizationService.GetLocalizedString("DownloadClientSabnzbdValidationDevelopVersionDetail")
                     };
                 }
 
@@ -403,12 +405,17 @@ namespace NzbDrone.Core.Download.Clients.Sabnzbd
                     return null;
                 }
 
-                return new ValidationFailure("Version", "Version 0.7.0+ is required, but found: " + version);
+                return new ValidationFailure("Version",
+                    _localizationService.GetLocalizedString("DownloadClientValidationErrorVersion",
+                        new Dictionary<string, object>
+                        {
+                            { "clientName", Name }, { "requiredVersion", "0.7.0" }, { "reportedVersion", version }
+                        }));
             }
             catch (Exception ex)
             {
                 _logger.Error(ex, ex.Message);
-                return new NzbDroneValidationFailure("Host", "Unable to connect to SABnzbd")
+                return new NzbDroneValidationFailure("Host", _localizationService.GetLocalizedString("DownloadClientValidationUnableToConnect", new Dictionary<string, object> { { "clientName", Name } }))
                        {
                            DetailedDescription = ex.Message
                        };
@@ -425,12 +432,12 @@ namespace NzbDrone.Core.Download.Clients.Sabnzbd
             {
                 if (ex.Message.ContainsIgnoreCase("API Key Incorrect"))
                 {
-                    return new ValidationFailure("APIKey", "API Key Incorrect");
+                    return new ValidationFailure("APIKey", _localizationService.GetLocalizedString("DownloadClientValidationApiKeyIncorrect"));
                 }
 
                 if (ex.Message.ContainsIgnoreCase("API Key Required"))
                 {
-                    return new ValidationFailure("APIKey", "API Key Required");
+                    return new ValidationFailure("APIKey", _localizationService.GetLocalizedString("DownloadClientValidationApiKeyRequired"));
                 }
 
                 throw;
@@ -444,10 +451,10 @@ namespace NzbDrone.Core.Download.Clients.Sabnzbd
             var config = _proxy.GetConfig(Settings);
             if (config.Misc.pre_check && !HasVersion(1, 1))
             {
-                return new NzbDroneValidationFailure("", "Disable 'Check before download' option in Sabnbzd")
+                return new NzbDroneValidationFailure("", _localizationService.GetLocalizedString("DownloadClientSabnzbdValidationCheckBeforeDownload"))
                 {
                     InfoLink = _proxy.GetBaseUrl(Settings, "config/switches/"),
-                    DetailedDescription = "Using Check before download affects Sonarr ability to track new downloads. Also Sabnzbd recommends 'Abort jobs that cannot be completed' instead since it's more effective."
+                    DetailedDescription = _localizationService.GetLocalizedString("DownloadClientSabnzbdValidationCheckBeforeDownloadDetail")
                 };
             }
 
@@ -463,10 +470,10 @@ namespace NzbDrone.Core.Download.Clients.Sabnzbd
             {
                 if (category.Dir.EndsWith("*"))
                 {
-                    return new NzbDroneValidationFailure("TvCategory", "Enable Job folders")
+                    return new NzbDroneValidationFailure("TvCategory", _localizationService.GetLocalizedString("DownloadClientSabnzbdValidationEnableJobFolders"))
                     {
                         InfoLink = _proxy.GetBaseUrl(Settings, "config/categories/"),
-                        DetailedDescription = "Sonarr prefers each download to have a separate folder. With * appended to the Folder/Path Sabnzbd will not create these job folders. Go to Sabnzbd to fix it."
+                        DetailedDescription = _localizationService.GetLocalizedString("DownloadClientSabnzbdValidationEnableJobFoldersDetail")
                     };
                 }
             }
@@ -474,10 +481,10 @@ namespace NzbDrone.Core.Download.Clients.Sabnzbd
             {
                 if (!Settings.TvCategory.IsNullOrWhiteSpace())
                 {
-                    return new NzbDroneValidationFailure("TvCategory", "Category does not exist")
+                    return new NzbDroneValidationFailure("TvCategory", _localizationService.GetLocalizedString("DownloadClientValidationCategoryMissing"))
                     {
                         InfoLink = _proxy.GetBaseUrl(Settings, "config/categories/"),
-                        DetailedDescription = "The Category your entered doesn't exist in Sabnzbd. Go to Sabnzbd to create it."
+                        DetailedDescription = _localizationService.GetLocalizedString("DownloadClientValidationCategoryMissingDetail", new Dictionary<string, object> { { "clientName", Name } })
                     };
                 }
             }
@@ -485,37 +492,37 @@ namespace NzbDrone.Core.Download.Clients.Sabnzbd
             // New in SABnzbd 4.1, but on older versions this will be empty and not apply
             if (config.Sorters.Any(s => s.is_active && ContainsCategory(s.sort_cats, Settings.TvCategory)))
             {
-                return new NzbDroneValidationFailure("TvCategory", "Disable TV Sorting")
+                return new NzbDroneValidationFailure("TvCategory", _localizationService.GetLocalizedString("DownloadClientSabnzbdValidationEnableDisableTvSorting"))
                 {
                     InfoLink = _proxy.GetBaseUrl(Settings, "config/sorting/"),
-                    DetailedDescription = "You must disable sorting for the category Sonarr uses to prevent import issues. Go to Sabnzbd to fix it."
+                    DetailedDescription = _localizationService.GetLocalizedString("DownloadClientSabnzbdValidationEnableDisableTvSortingDetail")
                 };
             }
 
             if (config.Misc.enable_tv_sorting && ContainsCategory(config.Misc.tv_categories, Settings.TvCategory))
             {
-                return new NzbDroneValidationFailure("TvCategory", "Disable TV Sorting")
+                return new NzbDroneValidationFailure("TvCategory", _localizationService.GetLocalizedString("DownloadClientSabnzbdValidationEnableDisableTvSorting"))
                 {
                     InfoLink = _proxy.GetBaseUrl(Settings, "config/sorting/"),
-                    DetailedDescription = "You must disable Sabnzbd TV Sorting for the category Sonarr uses to prevent import issues. Go to Sabnzbd to fix it."
+                    DetailedDescription = _localizationService.GetLocalizedString("DownloadClientSabnzbdValidationEnableDisableTvSortingDetail")
                 };
             }
 
             if (config.Misc.enable_movie_sorting && ContainsCategory(config.Misc.movie_categories, Settings.TvCategory))
             {
-                return new NzbDroneValidationFailure("TvCategory", "Disable Movie Sorting")
+                return new NzbDroneValidationFailure("TvCategory", _localizationService.GetLocalizedString("DownloadClientSabnzbdValidationEnableDisableMovieSorting"))
                 {
                     InfoLink = _proxy.GetBaseUrl(Settings, "config/sorting/"),
-                    DetailedDescription = "You must disable Sabnzbd Movie Sorting for the category Sonarr uses to prevent import issues. Go to Sabnzbd to fix it."
+                    DetailedDescription = _localizationService.GetLocalizedString("DownloadClientSabnzbdValidationEnableDisableMovieSortingDetail")
                 };
             }
 
             if (config.Misc.enable_date_sorting && ContainsCategory(config.Misc.date_categories, Settings.TvCategory))
             {
-                return new NzbDroneValidationFailure("TvCategory", "Disable Date Sorting")
+                return new NzbDroneValidationFailure("TvCategory", _localizationService.GetLocalizedString("DownloadClientSabnzbdValidationEnableDisableDateSorting"))
                 {
                     InfoLink = _proxy.GetBaseUrl(Settings, "config/sorting/"),
-                    DetailedDescription = "You must disable Sabnzbd Date Sorting for the category Sonarr uses to prevent import issues. Go to Sabnzbd to fix it."
+                    DetailedDescription = _localizationService.GetLocalizedString("DownloadClientSabnzbdValidationEnableDisableDateSortingDetail")
                 };
             }
 

src/NzbDrone.Core/Download/Clients/Sabnzbd/SabnzbdSettings.cs

@@ -51,13 +51,16 @@ namespace NzbDrone.Core.Download.Clients.Sabnzbd
         [FieldDefinition(1, Label = "Port", Type = FieldType.Textbox)]
         public int Port { get; set; }
 
-        [FieldDefinition(2, Label = "Use SSL", Type = FieldType.Checkbox, HelpText = "Use secure connection when connecting to Sabnzbd")]
+        [FieldDefinition(2, Label = "UseSsl", Type = FieldType.Checkbox, HelpText = "DownloadClientSettingsUseSslHelpText")]
+        [FieldToken(TokenField.HelpText, "UseSsl", "clientName", "Sabnzbd")]
         public bool UseSsl { get; set; }
 
-        [FieldDefinition(3, Label = "Url Base", Type = FieldType.Textbox, Advanced = true, HelpText = "Adds a prefix to the Sabnzbd url, e.g. http://[host]:[port]/[urlBase]/api")]
+        [FieldDefinition(3, Label = "UrlBase", Type = FieldType.Textbox, Advanced = true, HelpText = "DownloadClientSettingsUrlBaseHelpText")]
+        [FieldToken(TokenField.HelpText, "UrlBase", "clientName", "Sabnzbd")]
+        [FieldToken(TokenField.HelpText, "UrlBase", "url", "http://[host]:[port]/[urlBase]/api")]
         public string UrlBase { get; set; }
 
-        [FieldDefinition(4, Label = "API Key", Type = FieldType.Textbox, Privacy = PrivacyLevel.ApiKey)]
+        [FieldDefinition(4, Label = "ApiKey", Type = FieldType.Textbox, Privacy = PrivacyLevel.ApiKey)]
         public string ApiKey { get; set; }
 
         [FieldDefinition(5, Label = "Username", Type = FieldType.Textbox, Privacy = PrivacyLevel.UserName)]
@@ -66,13 +69,13 @@ namespace NzbDrone.Core.Download.Clients.Sabnzbd
         [FieldDefinition(6, Label = "Password", Type = FieldType.Password, Privacy = PrivacyLevel.Password)]
         public string Password { get; set; }
 
-        [FieldDefinition(7, Label = "Category", Type = FieldType.Textbox, HelpText = "Adding a category specific to Sonarr avoids conflicts with unrelated non-Sonarr downloads. Using a category is optional, but strongly recommended.")]
+        [FieldDefinition(7, Label = "Category", Type = FieldType.Textbox, HelpText = "DownloadClientSettingsCategoryHelpText")]
         public string TvCategory { get; set; }
 
-        [FieldDefinition(8, Label = "Recent Priority", Type = FieldType.Select, SelectOptions = typeof(SabnzbdPriority), HelpText = "Priority to use when grabbing episodes that aired within the last 14 days")]
+        [FieldDefinition(8, Label = "DownloadClientSettingsRecentPriority", Type = FieldType.Select, SelectOptions = typeof(SabnzbdPriority), HelpText = "DownloadClientSettingsRecentPriorityHelpText")]
         public int RecentTvPriority { get; set; }
 
-        [FieldDefinition(9, Label = "Older Priority", Type = FieldType.Select, SelectOptions = typeof(SabnzbdPriority), HelpText = "Priority to use when grabbing episodes that aired over 14 days ago")]
+        [FieldDefinition(9, Label = "DownloadClientSettingsOlderPriority", Type = FieldType.Select, SelectOptions = typeof(SabnzbdPriority), HelpText = "DownloadClientSettingsOlderPriorityHelpText")]
         public int OlderTvPriority { get; set; }
 
         public NzbDroneValidationResult Validate()

src/NzbDrone.Core/Download/Clients/Transmission/Transmission.cs

@@ -1,10 +1,12 @@
 using System;
+using System.Collections.Generic;
 using System.Text.RegularExpressions;
 using FluentValidation.Results;
 using NLog;
 using NzbDrone.Common.Disk;
 using NzbDrone.Common.Http;
 using NzbDrone.Core.Configuration;
+using NzbDrone.Core.Localization;
 using NzbDrone.Core.MediaFiles.TorrentInfo;
 using NzbDrone.Core.RemotePathMappings;
 
@@ -18,8 +20,9 @@ namespace NzbDrone.Core.Download.Clients.Transmission
                             IConfigService configService,
                             IDiskProvider diskProvider,
                             IRemotePathMappingService remotePathMappingService,
-                            Logger logger)
+                            Logger logger,
-            : base(proxy, torrentFileInfoReader, httpClient, configService, diskProvider, remotePathMappingService, logger)
+                            ILocalizationService localizationService)
+            : base(proxy, torrentFileInfoReader, httpClient, configService, diskProvider, remotePathMappingService, logger, localizationService)
         {
         }
 
@@ -34,7 +37,7 @@ namespace NzbDrone.Core.Download.Clients.Transmission
 
             if (version < new Version(2, 40))
             {
-                return new ValidationFailure(string.Empty, "Transmission version not supported, should be 2.40 or higher.");
+                return new ValidationFailure(string.Empty, _localizationService.GetLocalizedString("DownloadClientValidationErrorVersion", new Dictionary<string, object> { { "clientName", Name }, { "requiredVersion", "2.40" }, { "reportedVersion", version } }));
             }
 
             return null;

src/NzbDrone.Core/Download/Clients/Transmission/TransmissionBase.cs

@@ -7,6 +7,7 @@ using NzbDrone.Common.Disk;
 using NzbDrone.Common.Extensions;
 using NzbDrone.Common.Http;
 using NzbDrone.Core.Configuration;
+using NzbDrone.Core.Localization;
 using NzbDrone.Core.MediaFiles.TorrentInfo;
 using NzbDrone.Core.Parser.Model;
 using NzbDrone.Core.RemotePathMappings;
@@ -24,8 +25,9 @@ namespace NzbDrone.Core.Download.Clients.Transmission
             IConfigService configService,
             IDiskProvider diskProvider,
             IRemotePathMappingService remotePathMappingService,
-            Logger logger)
+            Logger logger,
-            : base(torrentFileInfoReader, httpClient, configService, diskProvider, remotePathMappingService, logger)
+            ILocalizationService localizationService)
+            : base(torrentFileInfoReader, httpClient, configService, diskProvider, remotePathMappingService, logger, localizationService)
         {
             _proxy = proxy;
         }
@@ -270,16 +272,16 @@ namespace NzbDrone.Core.Download.Clients.Transmission
             catch (DownloadClientAuthenticationException ex)
             {
                 _logger.Error(ex, ex.Message);
-                return new NzbDroneValidationFailure("Username", "Authentication failure")
+                return new NzbDroneValidationFailure("Username", _localizationService.GetLocalizedString("DownloadClientValidationAuthenticationFailure"))
                 {
-                    DetailedDescription = string.Format("Please verify your username and password. Also verify if the host running Sonarr isn't blocked from accessing {0} by WhiteList limitations in the {0} configuration.", Name)
+                    DetailedDescription = _localizationService.GetLocalizedString("DownloadClientValidationAuthenticationFailureDetail", new Dictionary<string, object> { { "clientName", Name } })
                 };
             }
             catch (DownloadClientUnavailableException ex)
             {
                 _logger.Error(ex, ex.Message);
 
-                return new NzbDroneValidationFailure("Host", "Unable to connect to Transmission")
+                return new NzbDroneValidationFailure("Host", _localizationService.GetLocalizedString("DownloadClientValidationUnableToConnect", new Dictionary<string, object> { { "clientName", Name } }))
                        {
                            DetailedDescription = ex.Message
                        };
@@ -288,7 +290,7 @@ namespace NzbDrone.Core.Download.Clients.Transmission
             {
                 _logger.Error(ex, "Failed to test");
 
-                return new NzbDroneValidationFailure(string.Empty, "Unknown exception: " + ex.Message);
+                return new NzbDroneValidationFailure(string.Empty, _localizationService.GetLocalizedString("DownloadClientValidationUnknownException", new Dictionary<string, object> { { "exception", ex.Message } }));
             }
         }
 
@@ -303,7 +305,7 @@ namespace NzbDrone.Core.Download.Clients.Transmission
             catch (Exception ex)
             {
                 _logger.Error(ex, "Failed to get torrents");
-                return new NzbDroneValidationFailure(string.Empty, "Failed to get the list of torrents: " + ex.Message);
+                return new NzbDroneValidationFailure(string.Empty, _localizationService.GetLocalizedString("DownloadClientValidationTestTorrents", new Dictionary<string, object> { { "exceptionMessage", ex.Message } }));
             }
 
             return null;

src/NzbDrone.Core/Download/Clients/Transmission/TransmissionSettings.cs

@@ -41,10 +41,15 @@ namespace NzbDrone.Core.Download.Clients.Transmission
         [FieldDefinition(1, Label = "Port", Type = FieldType.Textbox)]
         public int Port { get; set; }
 
-        [FieldDefinition(2, Label = "Use SSL", Type = FieldType.Checkbox, HelpText = "Use secure connection when connecting to Transmission")]
+        [FieldDefinition(2, Label = "UseSsl", Type = FieldType.Checkbox, HelpText = "DownloadClientSettingsUseSslHelpText")]
+        [FieldToken(TokenField.HelpText, "UseSsl", "clientName", "Transmission")]
         public bool UseSsl { get; set; }
 
-        [FieldDefinition(3, Label = "Url Base", Type = FieldType.Textbox, Advanced = true, HelpText = "Adds a prefix to the transmission rpc url, eg http://[host]:[port]/[urlBase]/rpc, defaults to '/transmission/'")]
+        [FieldDefinition(3, Label = "UrlBase", Type = FieldType.Textbox, Advanced = true, HelpText = "Adds a prefix to the transmission rpc url, eg http://[host]:[port]/[urlBase]/rpc, defaults to '/transmission/'")]
+        [FieldToken(TokenField.HelpText, "UrlBase", "clientName", "Transmission")]
+        [FieldToken(TokenField.HelpText, "UrlBase", "url", "http://[host]:[port]/[urlBase]/rpc")]
+        [FieldToken(TokenField.HelpText, "UrlBase", "defaultUrl", "/transmission/")]
+
         public string UrlBase { get; set; }
 
         [FieldDefinition(4, Label = "Username", Type = FieldType.Textbox, Privacy = PrivacyLevel.UserName)]
@@ -53,19 +58,19 @@ namespace NzbDrone.Core.Download.Clients.Transmission
         [FieldDefinition(5, Label = "Password", Type = FieldType.Password, Privacy = PrivacyLevel.Password)]
         public string Password { get; set; }
 
-        [FieldDefinition(6, Label = "Category", Type = FieldType.Textbox, HelpText = "Adding a category specific to Sonarr avoids conflicts with unrelated non-Sonarr downloads. Using a category is optional, but strongly recommended.. Creates a [category] subdirectory in the output directory.")]
+        [FieldDefinition(6, Label = "Category", Type = FieldType.Textbox, HelpText = "DownloadClientSettingsCategorySubFolderHelpText")]
         public string TvCategory { get; set; }
 
-        [FieldDefinition(7, Label = "Directory", Type = FieldType.Textbox, Advanced = true, HelpText = "Optional location to put downloads in, leave blank to use the default Transmission location")]
+        [FieldDefinition(7, Label = "Directory", Type = FieldType.Textbox, Advanced = true, HelpText = "DownloadClientTransmissionSettingsDirectoryHelpText")]
         public string TvDirectory { get; set; }
 
-        [FieldDefinition(8, Label = "Recent Priority", Type = FieldType.Select, SelectOptions = typeof(TransmissionPriority), HelpText = "Priority to use when grabbing episodes that aired within the last 14 days")]
+        [FieldDefinition(8, Label = "DownloadClientSettingsRecentPriority", Type = FieldType.Select, SelectOptions = typeof(TransmissionPriority), HelpText = "DownloadClientSettingsRecentPriorityHelpText")]
         public int RecentTvPriority { get; set; }
 
-        [FieldDefinition(9, Label = "Older Priority", Type = FieldType.Select, SelectOptions = typeof(TransmissionPriority), HelpText = "Priority to use when grabbing episodes that aired over 14 days ago")]
+        [FieldDefinition(9, Label = "DownloadClientSettingsOlderPriority", Type = FieldType.Select, SelectOptions = typeof(TransmissionPriority), HelpText = "DownloadClientSettingsOlderPriorityHelpText")]
         public int OlderTvPriority { get; set; }
 
-        [FieldDefinition(10, Label = "Add Paused", Type = FieldType.Checkbox)]
+        [FieldDefinition(10, Label = "DownloadClientSettingsAddPaused", Type = FieldType.Checkbox)]
         public bool AddPaused { get; set; }
 
         public NzbDroneValidationResult Validate()

src/NzbDrone.Core/Download/Clients/Vuze/Vuze.cs

@@ -4,6 +4,7 @@ using NzbDrone.Common.Disk;
 using NzbDrone.Common.Http;
 using NzbDrone.Core.Configuration;
 using NzbDrone.Core.Download.Clients.Transmission;
+using NzbDrone.Core.Localization;
 using NzbDrone.Core.MediaFiles.TorrentInfo;
 using NzbDrone.Core.RemotePathMappings;
 
@@ -19,8 +20,9 @@ namespace NzbDrone.Core.Download.Clients.Vuze
                     IConfigService configService,
                     IDiskProvider diskProvider,
                     IRemotePathMappingService remotePathMappingService,
-                    Logger logger)
+                    Logger logger,
-            : base(proxy, torrentFileInfoReader, httpClient, configService, diskProvider, remotePathMappingService, logger)
+                    ILocalizationService localizationService)
+            : base(proxy, torrentFileInfoReader, httpClient, configService, diskProvider, remotePathMappingService, logger, localizationService)
         {
         }
 
@@ -57,7 +59,7 @@ namespace NzbDrone.Core.Download.Clients.Vuze
             if (!int.TryParse(versionString, out var version) || version < MINIMUM_SUPPORTED_PROTOCOL_VERSION)
             {
                 {
-                    return new ValidationFailure(string.Empty, "Protocol version not supported, use Vuze 5.0.0.0 or higher with Vuze Web Remote plugin.");
+                    return new ValidationFailure(string.Empty, _localizationService.GetLocalizedString("DownloadClientVuzeValidationErrorVersion"));
                 }
             }
 

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

@@ -11,6 +11,7 @@ using NzbDrone.Common.Http;
 using NzbDrone.Core.Configuration;
 using NzbDrone.Core.Download.Clients.rTorrent;
 using NzbDrone.Core.Exceptions;
+using NzbDrone.Core.Localization;
 using NzbDrone.Core.MediaFiles.TorrentInfo;
 using NzbDrone.Core.Parser.Model;
 using NzbDrone.Core.RemotePathMappings;
@@ -34,8 +35,9 @@ namespace NzbDrone.Core.Download.Clients.RTorrent
                         IRemotePathMappingService remotePathMappingService,
                         IDownloadSeedConfigProvider downloadSeedConfigProvider,
                         IRTorrentDirectoryValidator rTorrentDirectoryValidator,
-                        Logger logger)
+                        Logger logger,
-            : base(torrentFileInfoReader, httpClient, configService, diskProvider, remotePathMappingService, logger)
+                        ILocalizationService localizationService)
+            : base(torrentFileInfoReader, httpClient, configService, diskProvider, remotePathMappingService, logger, localizationService)
         {
             _proxy = proxy;
             _rTorrentDirectoryValidator = rTorrentDirectoryValidator;
@@ -115,7 +117,7 @@ namespace NzbDrone.Core.Download.Clients.RTorrent
 
         public override string Name => "rTorrent";
 
-        public override ProviderMessage Message => new ProviderMessage($"rTorrent will not pause torrents when they meet the seed criteria. Sonarr will handle automatic removal of torrents based on the current seed criteria in Settings->Indexers only when Remove Completed is enabled.  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 ProviderMessage Message => new ProviderMessage(_localizationService.GetLocalizedString("DownloadClientRTorrentProviderMessage", new Dictionary<string, object> { { "importedView", _imported_view } }), ProviderMessageType.Info);
 
         public override IEnumerable<DownloadClientItem> GetItems()
         {
@@ -250,14 +252,19 @@ namespace NzbDrone.Core.Download.Clients.RTorrent
 
                 if (new Version(version) < new Version("0.9.0"))
                 {
-                    return new ValidationFailure(string.Empty, "rTorrent version should be at least 0.9.0. Version reported is {0}", version);
+                    return new ValidationFailure(string.Empty,
+                        _localizationService.GetLocalizedString("DownloadClientValidationErrorVersion",
+                            new Dictionary<string, object>
+                            {
+                                { "clientName", Name }, { "requiredVersion", "0.9.0" }, { "reportedVersion", version }
+                            }));
                 }
             }
             catch (Exception ex)
             {
                 _logger.Error(ex, "Failed to test rTorrent");
 
-                return new NzbDroneValidationFailure("Host", "Unable to connect to rTorrent")
+                return new NzbDroneValidationFailure("Host", _localizationService.GetLocalizedString("DownloadClientValidationUnableToConnect", new Dictionary<string, object> { { "clientName", Name } }))
                        {
                            DetailedDescription = ex.Message
                        };
@@ -275,7 +282,7 @@ namespace NzbDrone.Core.Download.Clients.RTorrent
             catch (Exception ex)
             {
                 _logger.Error(ex, "Failed to get torrents");
-                return new NzbDroneValidationFailure(string.Empty, "Failed to get the list of torrents: " + ex.Message);
+                return new NzbDroneValidationFailure(string.Empty, _localizationService.GetLocalizedString("DownloadClientValidationTestTorrents", new Dictionary<string, object> { { "exceptionMessage", ex.Message } }));
             }
 
             return null;

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

@@ -37,10 +37,13 @@ namespace NzbDrone.Core.Download.Clients.RTorrent
         [FieldDefinition(1, Label = "Port", Type = FieldType.Textbox)]
         public int Port { get; set; }
 
-        [FieldDefinition(2, Label = "Use SSL", Type = FieldType.Checkbox, HelpText = "Use secure connection when connecting to rTorrent")]
+        [FieldDefinition(2, Label = "UseSsl", Type = FieldType.Checkbox, HelpText = "DownloadClientSettingsUseSslHelpText")]
+        [FieldToken(TokenField.HelpText, "UseSsl", "clientName", "rTorrent")]
         public bool UseSsl { get; set; }
 
-        [FieldDefinition(3, Label = "Url Path", Type = FieldType.Textbox, HelpText = "Path to the XMLRPC endpoint, see http(s)://[host]:[port]/[urlPath]. This is usually RPC2 or [path to ruTorrent]/plugins/rpc/rpc.php when using ruTorrent.")]
+        [FieldDefinition(3, Label = "DownloadClientRTorrentSettingsUrlPath", Type = FieldType.Textbox, HelpText = "DownloadClientRTorrentSettingsUrlPathHelpText")]
+        [FieldToken(TokenField.HelpText, "DownloadClientRTorrentSettingsUrlPath", "url", "http(s)://[host]:[port]/[urlPath]")]
+        [FieldToken(TokenField.HelpText, "DownloadClientRTorrentSettingsUrlPath", "url2", "/plugins/rpc/rpc.php")]
         public string UrlBase { get; set; }
 
         [FieldDefinition(4, Label = "Username", Type = FieldType.Textbox, Privacy = PrivacyLevel.UserName)]
@@ -49,22 +52,22 @@ namespace NzbDrone.Core.Download.Clients.RTorrent
         [FieldDefinition(5, Label = "Password", Type = FieldType.Password, Privacy = PrivacyLevel.Password)]
         public string Password { get; set; }
 
-        [FieldDefinition(6, Label = "Category", Type = FieldType.Textbox, HelpText = "Adding a category specific to Sonarr avoids conflicts with unrelated non-Sonarr downloads. Using a category is optional, but strongly recommended.")]
+        [FieldDefinition(6, Label = "Category", Type = FieldType.Textbox, HelpText = "DownloadClientSettingsCategoryHelpText")]
         public string TvCategory { get; set; }
 
-        [FieldDefinition(7, Label = "Post-Import Category", Type = FieldType.Textbox, Advanced = true, HelpText = "Category for Sonarr to set after it has imported the download. Sonarr will not remove the torrent if seeding has finished. Leave blank to keep same category.")]
+        [FieldDefinition(7, Label = "PostImportCategory", Type = FieldType.Textbox, Advanced = true, HelpText = "DownloadClientSettingsPostImportCategoryHelpText")]
         public string TvImportedCategory { get; set; }
 
-        [FieldDefinition(8, Label = "Directory", Type = FieldType.Textbox, Advanced = true, HelpText = "Optional location to put downloads in, leave blank to use the default rTorrent location")]
+        [FieldDefinition(8, Label = "Directory", Type = FieldType.Textbox, Advanced = true, HelpText = "DownloadClientRTorrentSettingsDirectoryHelpText")]
         public string TvDirectory { get; set; }
 
-        [FieldDefinition(9, Label = "Recent Priority", Type = FieldType.Select, SelectOptions = typeof(RTorrentPriority), HelpText = "Priority to use when grabbing episodes that aired within the last 14 days")]
+        [FieldDefinition(9, Label = "DownloadClientSettingsRecentPriority", Type = FieldType.Select, SelectOptions = typeof(RTorrentPriority), HelpText = "DownloadClientSettingsRecentPriorityHelpText")]
         public int RecentTvPriority { get; set; }
 
-        [FieldDefinition(10, Label = "Older Priority", Type = FieldType.Select, SelectOptions = typeof(RTorrentPriority), HelpText = "Priority to use when grabbing episodes that aired over 14 days ago")]
+        [FieldDefinition(10, Label = "DownloadClientSettingsOlderPriority", Type = FieldType.Select, SelectOptions = typeof(RTorrentPriority), HelpText = "DownloadClientSettingsOlderPriorityHelpText")]
         public int OlderTvPriority { get; set; }
 
-        [FieldDefinition(11, Label = "Add Stopped", Type = FieldType.Checkbox, HelpText = "Enabling will add torrents and magnets to rTorrent in a stopped state. This may break magnet files.")]
+        [FieldDefinition(11, Label = "DownloadClientRTorrentSettingsAddStopped", Type = FieldType.Checkbox, HelpText = "DownloadClientRTorrentSettingsAddStoppedHelpText")]
         public bool AddStopped { get; set; }
 
         public NzbDroneValidationResult Validate()

src/NzbDrone.Core/Download/Clients/uTorrent/UTorrent.cs

@@ -9,6 +9,7 @@ using NzbDrone.Common.Disk;
 using NzbDrone.Common.Extensions;
 using NzbDrone.Common.Http;
 using NzbDrone.Core.Configuration;
+using NzbDrone.Core.Localization;
 using NzbDrone.Core.MediaFiles.TorrentInfo;
 using NzbDrone.Core.Parser.Model;
 using NzbDrone.Core.RemotePathMappings;
@@ -28,8 +29,9 @@ namespace NzbDrone.Core.Download.Clients.UTorrent
                         IConfigService configService,
                         IDiskProvider diskProvider,
                         IRemotePathMappingService remotePathMappingService,
-                        Logger logger)
+                        Logger logger,
-            : base(torrentFileInfoReader, httpClient, configService, diskProvider, remotePathMappingService, logger)
+                        ILocalizationService localizationService)
+            : base(torrentFileInfoReader, httpClient, configService, diskProvider, remotePathMappingService, logger, localizationService)
         {
             _proxy = proxy;
 
@@ -141,7 +143,7 @@ namespace NzbDrone.Core.Download.Clients.UTorrent
                 if (torrent.Status.HasFlag(UTorrentTorrentStatus.Error))
                 {
                     item.Status = DownloadItemStatus.Warning;
-                    item.Message = "uTorrent is reporting an error";
+                    item.Message = _localizationService.GetLocalizedString("DownloadClientUTorrentTorrentStateError");
                 }
                 else if (torrent.Status.HasFlag(UTorrentTorrentStatus.Loaded) &&
                          torrent.Status.HasFlag(UTorrentTorrentStatus.Checked) && torrent.Remaining == 0 && torrent.Progress == 1.0)
@@ -264,15 +266,20 @@ namespace NzbDrone.Core.Download.Clients.UTorrent
 
                 if (version < 25406)
                 {
-                    return new ValidationFailure(string.Empty, "Old uTorrent client with unsupported API, need 3.0 or higher");
+                    return new ValidationFailure(string.Empty,
+                        _localizationService.GetLocalizedString("DownloadClientValidationErrorVersion",
+                            new Dictionary<string, object>
+                            {
+                                { "clientName", Name }, { "requiredVersion", "3.0" }, { "reportedVersion", version }
+                            }));
                 }
             }
             catch (DownloadClientAuthenticationException ex)
             {
                 _logger.Error(ex, ex.Message);
-                return new NzbDroneValidationFailure("Username", "Authentication failure")
+                return new NzbDroneValidationFailure("Username", _localizationService.GetLocalizedString("DownloadClientValidationAuthenticationFailure"))
                 {
-                    DetailedDescription = "Please verify your username and password."
+                    DetailedDescription = _localizationService.GetLocalizedString("DownloadClientValidationAuthenticationFailureDetail", new Dictionary<string, object> { { "clientName", Name } })
                 };
             }
             catch (WebException ex)
@@ -280,19 +287,19 @@ namespace NzbDrone.Core.Download.Clients.UTorrent
                 _logger.Error(ex, "Unable to connect to uTorrent");
                 if (ex.Status == WebExceptionStatus.ConnectFailure)
                 {
-                    return new NzbDroneValidationFailure("Host", "Unable to connect")
+                    return new NzbDroneValidationFailure("Host", _localizationService.GetLocalizedString("DownloadClientValidationUnableToConnect", new Dictionary<string, object> { { "clientName", Name } }))
                     {
-                        DetailedDescription = "Please verify the hostname and port."
+                        DetailedDescription = _localizationService.GetLocalizedString("DownloadClientValidationUnableToConnectDetail")
                     };
                 }
 
-                return new NzbDroneValidationFailure(string.Empty, "Unknown exception: " + ex.Message);
+                return new NzbDroneValidationFailure(string.Empty, _localizationService.GetLocalizedString("DownloadClientValidationUnknownException", new Dictionary<string, object> { { "exception", ex.Message } }));
             }
             catch (Exception ex)
             {
                 _logger.Error(ex, "Failed to test uTorrent");
 
-                return new NzbDroneValidationFailure("Host", "Unable to connect to uTorrent")
+                return new NzbDroneValidationFailure("Host", _localizationService.GetLocalizedString("DownloadClientValidationUnableToConnect", new Dictionary<string, object> { { "clientName", Name } }))
                        {
                            DetailedDescription = ex.Message
                        };
@@ -310,7 +317,7 @@ namespace NzbDrone.Core.Download.Clients.UTorrent
             catch (Exception ex)
             {
                 _logger.Error(ex, "Failed to get torrents");
-                return new NzbDroneValidationFailure(string.Empty, "Failed to get the list of torrents: " + ex.Message);
+                return new NzbDroneValidationFailure(string.Empty, _localizationService.GetLocalizedString("DownloadClientValidationTestTorrents", new Dictionary<string, object> { { "exceptionMessage", ex.Message } }));
             }
 
             return null;

src/NzbDrone.Core/Download/Clients/uTorrent/UTorrentSettings.cs

@@ -34,10 +34,13 @@ namespace NzbDrone.Core.Download.Clients.UTorrent
         [FieldDefinition(1, Label = "Port", Type = FieldType.Textbox)]
         public int Port { get; set; }
 
-        [FieldDefinition(2, Label = "Use SSL", Type = FieldType.Checkbox, HelpText = "Use secure connection when connecting to uTorrent")]
+        [FieldDefinition(2, Label = "UseSsl", Type = FieldType.Checkbox, HelpText = "DownloadClientSettingsUseSslHelpText")]
+        [FieldToken(TokenField.HelpText, "UseSsl", "clientName", "uTorrent")]
         public bool UseSsl { get; set; }
 
-        [FieldDefinition(3, Label = "Url Base", Type = FieldType.Textbox, Advanced = true, HelpText = "Adds a prefix to the uTorrent url, e.g. http://[host]:[port]/[urlBase]/api")]
+        [FieldDefinition(3, Label = "UrlBase", Type = FieldType.Textbox, Advanced = true, HelpText = "DownloadClientSettingsUrlBaseHelpText")]
+        [FieldToken(TokenField.HelpText, "UrlBase", "clientName", "uTorrent")]
+        [FieldToken(TokenField.HelpText, "UrlBase", "url", "http://[host]:[port]/[urlBase]/api")]
         public string UrlBase { get; set; }
 
         [FieldDefinition(4, Label = "Username", Type = FieldType.Textbox, Privacy = PrivacyLevel.UserName)]
@@ -46,19 +49,20 @@ namespace NzbDrone.Core.Download.Clients.UTorrent
         [FieldDefinition(5, Label = "Password", Type = FieldType.Password, Privacy = PrivacyLevel.Password)]
         public string Password { get; set; }
 
-        [FieldDefinition(6, Label = "Category", Type = FieldType.Textbox, HelpText = "Adding a category specific to Sonarr avoids conflicts with unrelated non-Sonarr downloads. Using a category is optional, but strongly recommended.")]
+        [FieldDefinition(6, Label = "Category", Type = FieldType.Textbox, HelpText = "DownloadClientSettingsCategoryHelpText")]
         public string TvCategory { get; set; }
 
-        [FieldDefinition(7, Label = "Post-Import Category", Type = FieldType.Textbox, Advanced = true, HelpText = "Category for Sonarr to set after it has imported the download. Sonarr will not remove the torrent if seeding has finished. Leave blank to keep same category.")]
+        [FieldDefinition(7, Label = "PostImportCategory", Type = FieldType.Textbox, Advanced = true, HelpText = "DownloadClientSettingsPostImportCategoryHelpText")]
         public string TvImportedCategory { get; set; }
 
-        [FieldDefinition(8, Label = "Recent Priority", Type = FieldType.Select, SelectOptions = typeof(UTorrentPriority), HelpText = "Priority to use when grabbing episodes that aired within the last 14 days")]
+        [FieldDefinition(8, Label = "DownloadClientSettingsRecentPriority", Type = FieldType.Select, SelectOptions = typeof(UTorrentPriority), HelpText = "DownloadClientSettingsRecentPriorityHelpText")]
         public int RecentTvPriority { get; set; }
 
-        [FieldDefinition(9, Label = "Older Priority", Type = FieldType.Select, SelectOptions = typeof(UTorrentPriority), HelpText = "Priority to use when grabbing episodes that aired over 14 days ago")]
+        [FieldDefinition(9, Label = "DownloadClientSettingsOlderPriority", Type = FieldType.Select, SelectOptions = typeof(UTorrentPriority), HelpText = "DownloadClientSettingsOlderPriorityHelpText")]
         public int OlderTvPriority { get; set; }
 
-        [FieldDefinition(10, Label = "Initial State", Type = FieldType.Select, SelectOptions = typeof(UTorrentState), HelpText = "Initial state for torrents added to uTorrent")]
+        [FieldDefinition(10, Label = "DownloadClientSettingsInitialState", Type = FieldType.Select, SelectOptions = typeof(UTorrentState), HelpText = "DownloadClientSettingsInitialStateHelpText")]
+        [FieldToken(TokenField.HelpText, "DownloadClientSettingsInitialState", "clientName", "uTorrent")]
         public int IntialState { get; set; }
 
         public NzbDroneValidationResult Validate()

src/NzbDrone.Core/Download/DownloadClientBase.cs

@@ -6,6 +6,7 @@ using NLog;
 using NzbDrone.Common.Disk;
 using NzbDrone.Core.Configuration;
 using NzbDrone.Core.Indexers;
+using NzbDrone.Core.Localization;
 using NzbDrone.Core.Parser.Model;
 using NzbDrone.Core.RemotePathMappings;
 using NzbDrone.Core.ThingiProvider;
@@ -20,6 +21,7 @@ namespace NzbDrone.Core.Download
         protected readonly IDiskProvider _diskProvider;
         protected readonly IRemotePathMappingService _remotePathMappingService;
         protected readonly Logger _logger;
+        protected readonly ILocalizationService _localizationService;
 
         public abstract string Name { get; }
 
@@ -41,12 +43,14 @@ namespace NzbDrone.Core.Download
         protected DownloadClientBase(IConfigService configService,
             IDiskProvider diskProvider,
             IRemotePathMappingService remotePathMappingService,
-            Logger logger)
+            Logger logger,
+            ILocalizationService localizationService)
         {
             _configService = configService;
             _diskProvider = diskProvider;
             _remotePathMappingService = remotePathMappingService;
             _logger = logger;
+            _localizationService = localizationService;
         }
 
         public override string ToString()

src/NzbDrone.Core/Download/TorrentClientBase.cs

@@ -9,6 +9,7 @@ using NzbDrone.Common.Http;
 using NzbDrone.Core.Configuration;
 using NzbDrone.Core.Exceptions;
 using NzbDrone.Core.Indexers;
+using NzbDrone.Core.Localization;
 using NzbDrone.Core.MediaFiles.TorrentInfo;
 using NzbDrone.Core.Organizer;
 using NzbDrone.Core.Parser.Model;
@@ -24,12 +25,13 @@ namespace NzbDrone.Core.Download
         protected readonly ITorrentFileInfoReader _torrentFileInfoReader;
 
         protected TorrentClientBase(ITorrentFileInfoReader torrentFileInfoReader,
-                                    IHttpClient httpClient,
+            IHttpClient httpClient,
-                                    IConfigService configService,
+            IConfigService configService,
-                                    IDiskProvider diskProvider,
+            IDiskProvider diskProvider,
-                                    IRemotePathMappingService remotePathMappingService,
+            IRemotePathMappingService remotePathMappingService,
-                                    Logger logger)
+            Logger logger,
-            : base(configService, diskProvider, remotePathMappingService, logger)
+            ILocalizationService localizationService)
+            : base(configService, diskProvider, remotePathMappingService, logger, localizationService)
         {
             _httpClient = httpClient;
             _torrentFileInfoReader = torrentFileInfoReader;

src/NzbDrone.Core/Download/UsenetClientBase.cs

@@ -6,6 +6,7 @@ using NzbDrone.Common.Http;
 using NzbDrone.Core.Configuration;
 using NzbDrone.Core.Exceptions;
 using NzbDrone.Core.Indexers;
+using NzbDrone.Core.Localization;
 using NzbDrone.Core.Organizer;
 using NzbDrone.Core.Parser.Model;
 using NzbDrone.Core.RemotePathMappings;
@@ -24,8 +25,9 @@ namespace NzbDrone.Core.Download
                                    IDiskProvider diskProvider,
                                    IRemotePathMappingService remotePathMappingService,
                                    IValidateNzbs nzbValidationService,
-                                   Logger logger)
+                                   Logger logger,
-            : base(configService, diskProvider, remotePathMappingService, logger)
+                                   ILocalizationService localizationService)
+            : base(configService, diskProvider, remotePathMappingService, logger, localizationService)
         {
             _httpClient = httpClient;
             _nzbValidationService = nzbValidationService;

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

@@ -139,6 +139,9 @@
   "BeforeUpdate": "Before update",
   "BindAddress": "Bind Address",
   "BindAddressHelpText": "Valid IP address, localhost or '*' for all interfaces",
+  "BlackholeFolderHelpText": "Folder in which {appName} will store the {extension} file",
+  "BlackholeWatchFolder": "Watch Folder",
+  "BlackholeWatchFolderHelpText": "Folder from which {appName} should import completed downloads",
   "Blocklist": "Blocklist",
   "BlocklistLoadError": "Unable to load blocklist",
   "BlocklistRelease": "Blocklist Release",
@@ -171,6 +174,7 @@
   "Cancel": "Cancel",
   "CancelPendingTask": "Are you sure you want to cancel this pending task?",
   "CancelProcessing": "Cancel Processing",
+  "Category": "Category",
   "CertificateValidation": "Certificate Validation",
   "CertificateValidationHelpText": "Change how strict HTTPS certification validation is. Do not change unless you understand the risks.",
   "Certification": "Certification",
@@ -339,11 +343,13 @@
   "DeletedReasonMissingFromDisk": "{appName} was unable to find the file on disk so the file was unlinked from the episode in the database",
   "DeletedReasonUpgrade": "File was deleted to import an upgrade",
   "DeletedSeriesDescription": "Series was deleted from TheTVDB",
+  "Destination": "Destination",
   "DestinationPath": "Destination Path",
   "DestinationRelativePath": "Destination Relative Path",
   "DetailedProgressBar": "Detailed Progress Bar",
   "DetailedProgressBarHelpText": "Show text on progress bar",
   "Details": "Details",
+  "Directory": "Directory",
   "Disabled": "Disabled",
   "DisabledForLocalAddresses": "Disabled for Local Addresses",
   "Discord": "Discord",
@@ -360,14 +366,136 @@
   "DownloadClient": "Download Client",
   "DownloadClientCheckNoneAvailableHealthCheckMessage": "No download client is available",
   "DownloadClientCheckUnableToCommunicateWithHealthCheckMessage": "Unable to communicate with {downloadClientName}. {errorMessage}",
+  "DownloadClientDelugeSettingsUrlBaseHelpText": "Adds a prefix to the deluge json url, see {url}",
+  "DownloadClientDelugeTorrentStateError": "Deluge is reporting an error",
+  "DownloadClientDelugeValidationLabelPluginFailure": "Configuration of label failed",
+  "DownloadClientDelugeValidationLabelPluginFailureDetail": "{appName} was unable to add the label to {clientName}.",
+  "DownloadClientDelugeValidationLabelPluginInactive": "Label plugin not activated",
+  "DownloadClientDelugeValidationLabelPluginInactiveDetail": "You must have the Label plugin enabled in {clientName} to use categories.",
+  "DownloadClientDownloadStationProviderMessage": "{appName} is unable to connect to Download Station if 2-Factor Authentication is enabled on your DSM account",
+  "DownloadClientDownloadStationSettingsDirectory": "Optional shared folder to put downloads into, leave blank to use the default Download Station location",
+  "DownloadClientDownloadStationValidationApiVersion": "Download Station API version not supported, should be at least {requiredVersion}. It supports from {minVersion} to {maxVersion}",
+  "DownloadClientDownloadStationValidationFolderMissing": "Folder does not exist",
+  "DownloadClientDownloadStationValidationFolderMissingDetail": "The folder '{downloadDir}' does not exist, it must be created manually inside the Shared Folder '{sharedFolder}'.",
+  "DownloadClientDownloadStationValidationNoDefaultDestination": "No default destination",
+  "DownloadClientDownloadStationValidationNoDefaultDestinationDetail": "You must login into your Diskstation as {username} and manually set it up into DownloadStation settings under BT/HTTP/FTP/NZB -> Location.",
+  "DownloadClientDownloadStationValidationSharedFolderMissing": "Shared folder does not exist",
+  "DownloadClientDownloadStationValidationSharedFolderMissingDetail": "The Diskstation does not have a Shared Folder with the name '{sharedFolder}', are you sure you specified it correctly?",
+  "DownloadClientFloodSettingsAdditionalTags": "Additional Tags",
+  "DownloadClientFloodSettingsAdditionalTagsHelpText": "Adds properties of media as tags. Hints are examples.",
+  "DownloadClientFloodSettingsPostImportTags": "Post-Import Tags",
+  "DownloadClientFloodSettingsPostImportTagsHelpText": "Appends tags after a download is imported.",
+  "DownloadClientFloodSettingsRemovalInfo": "{appName} will handle automatic removal of torrents based on the current seed criteria in Settings -> Indexers",
+  "DownloadClientFloodSettingsStartOnAdd": "Start on Add",
+  "DownloadClientFloodSettingsTagsHelpText": "Initial tags of a download. To be recognized, a download must have all initial tags. This avoids conflicts with unrelated downloads.",
+  "DownloadClientFloodSettingsUrlBaseHelpText": "Adds a prefix to the Flood API, such as {url}",
+  "DownloadClientFreeboxApiError": "Freebox API returned error: {errorDescription}",
+  "DownloadClientFreeboxAuthenticationError": "Authentication to Freebox API failed. Reason: {errorDescription}",
+  "DownloadClientFreeboxNotLoggedIn": "Not logged in",
+  "DownloadClientFreeboxSettingsApiUrl": "API URL",
+  "DownloadClientFreeboxSettingsApiUrlHelpText": "Define Freebox API base URL with API version, eg '{url}', defaults to '{defaultApiUrl}'",
+  "DownloadClientFreeboxSettingsAppId": "App ID",
+  "DownloadClientFreeboxSettingsAppIdHelpText": "App ID given when creating access to Freebox API (ie 'app_id')",
+  "DownloadClientFreeboxSettingsAppToken": "App Token",
+  "DownloadClientFreeboxSettingsAppTokenHelpText": "App token retrieved when creating access to Freebox API (ie 'app_token')",
+  "DownloadClientFreeboxSettingsHostHelpText": "Hostname or host IP address of the Freebox, defaults to '{url}' (will only work if on same network)",
+  "DownloadClientFreeboxSettingsPortHelpText": "Port used to access Freebox interface, defaults to '{port}'",
+  "DownloadClientFreeboxUnableToReachFreebox": "Unable to reach Freebox API. Verify 'Host', 'Port' or 'Use SSL' settings. (Error: {exceptionMessage})",
+  "DownloadClientFreeboxUnableToReachFreeboxApi": "Unable to reach Freebox API. Verify 'API URL' setting for base URL and version.",
+  "DownloadClientNzbVortexMultipleFilesMessage": "Download contains multiple files and is not in a job folder: {outputPath}",
+  "DownloadClientNzbgetSettingsAddPausedHelpText": "This option requires at least NzbGet version 16.0",
+  "DownloadClientNzbgetValidationKeepHistoryOverMax": "NzbGet setting KeepHistory should be less than 25000",
+  "DownloadClientNzbgetValidationKeepHistoryOverMaxDetail": "NzbGet setting KeepHistory is set too high.",
+  "DownloadClientNzbgetValidationKeepHistoryZero": "NzbGet setting KeepHistory should be greater than 0",
+  "DownloadClientNzbgetValidationKeepHistoryZeroDetail": "NzbGet setting KeepHistory is set to 0. Which prevents {appName} from seeing completed downloads.",
   "DownloadClientOptionsLoadError": "Unable to load download client options",
+  "DownloadClientPneumaticSettingsNzbFolder": "Nzb Folder",
+  "DownloadClientPneumaticSettingsNzbFolderHelpText": "This folder will need to be reachable from XBMC",
+  "DownloadClientPneumaticSettingsStrmFolder": "Strm Folder",
+  "DownloadClientPneumaticSettingsStrmFolderHelpText": ".strm files in this folder will be import by drone",
+  "DownloadClientQbittorrentSettingsFirstAndLastFirst": "First and Last First",
+  "DownloadClientQbittorrentSettingsFirstAndLastFirstHelpText": "Download first and last pieces first (qBittorrent 4.1.0+)",
+  "DownloadClientQbittorrentSettingsInitialStateHelpText": "Initial state for torrents added to qBittorrent. Note that Forced Torrents do not abide by seed restrictions",
+  "DownloadClientQbittorrentSettingsSequentialOrder": "Sequential Order",
+  "DownloadClientQbittorrentSettingsSequentialOrderHelpText": "Download in sequential order (qBittorrent 4.1.0+)",
+  "DownloadClientQbittorrentSettingsUseSslHelpText": "Use a secure connection. See Options -> Web UI -> 'Use HTTPS instead of HTTP' in qBittorrent.",
+  "DownloadClientQbittorrentTorrentStateDhtDisabled": "qBittorrent cannot resolve magnet link with DHT disabled",
+  "DownloadClientQbittorrentTorrentStateError": "qBittorrent is reporting an error",
+  "DownloadClientQbittorrentTorrentStateMetadata": "qBittorrent is downloading metadata",
+  "DownloadClientQbittorrentTorrentStatePathError": "Unable to Import. Path matches client base download directory, it's possible 'Keep top-level folder' is disabled for this torrent or 'Torrent Content Layout' is NOT set to 'Original' or 'Create Subfolder'?",
+  "DownloadClientQbittorrentTorrentStateStalled": "The download is stalled with no connections",
+  "DownloadClientQbittorrentTorrentStateUnknown": "Unknown download state: {state}",
+  "DownloadClientQbittorrentValidationCategoryAddFailure": "Configuration of category failed",
+  "DownloadClientQbittorrentValidationCategoryAddFailureDetail": "{appName} was unable to add the label to qBittorrent.",
+  "DownloadClientQbittorrentValidationCategoryRecommended": "Category is recommended",
+  "DownloadClientQbittorrentValidationCategoryRecommendedDetail": "{appName} will not attempt to import completed downloads without a category.",
+  "DownloadClientQbittorrentValidationCategoryUnsupported": "Category is not supported",
+  "DownloadClientQbittorrentValidationCategoryUnsupportedDetail": "Categories are not supported until qBittorrent version 3.3.0. Please upgrade or try again with an empty Category.",
+  "DownloadClientQbittorrentValidationQueueingNotEnabled": "Queueing Not Enabled",
+  "DownloadClientQbittorrentValidationQueueingNotEnabledDetail": "Torrent Queueing is not enabled in your qBittorrent settings. Enable it in qBittorrent or select 'Last' as priority.",
+  "DownloadClientQbittorrentValidationRemovesAtRatioLimit": "qBittorrent is configured to remove torrents when they reach their Share Ratio Limit",
+  "DownloadClientQbittorrentValidationRemovesAtRatioLimitDetail": "{appName} will be unable to perform Completed Download Handling as configured. You can fix this in qBittorrent ('Tools -> Options...' in the menu) by changing 'Options -> BitTorrent -> Share Ratio Limiting' from 'Remove them' to 'Pause them'",
+  "DownloadClientRTorrentProviderMessage": "rTorrent will not pause torrents when they meet the seed criteria. {appName} will handle automatic removal of torrents based on the current seed criteria in Settings->Indexers only when Remove Completed is enabled.  After importing it will also set {importedView} as an rTorrent view, which can be used in rTorrent scripts to customize behavior.",
+  "DownloadClientRTorrentSettingsAddStopped": "Add Stopped",
+  "DownloadClientRTorrentSettingsAddStoppedHelpText": "Enabling will add torrents and magnets to rTorrent in a stopped state. This may break magnet files.",
+  "DownloadClientRTorrentSettingsDirectoryHelpText": "Optional location to put downloads in, leave blank to use the default rTorrent location",
+  "DownloadClientRTorrentSettingsUrlPath": "Url Path",
+  "DownloadClientRTorrentSettingsUrlPathHelpText": "Path to the XMLRPC endpoint, see {url}. This is usually RPC2 or [path to ruTorrent]{url2} when using ruTorrent.",
   "DownloadClientRemovesCompletedDownloadsHealthCheckMessage": "Download client {downloadClientName} is set to remove completed downloads. This can result in downloads being removed from your client before {appName} can import them.",
   "DownloadClientRootFolderHealthCheckMessage": "Download client {downloadClientName} places downloads in the root folder {rootFolderPath}. You should not download to a root folder.",
+  "DownloadClientSabnzbdValidationCheckBeforeDownload": "Disable 'Check before download' option in Sabnbzd",
+  "DownloadClientSabnzbdValidationCheckBeforeDownloadDetail": "Using 'Check before download' affects {appName} ability to track new downloads. Also Sabnzbd recommends 'Abort jobs that cannot be completed' instead since it's more effective.",
+  "DownloadClientSabnzbdValidationDevelopVersion": "Sabnzbd develop version, assuming version 3.0.0 or higher.",
+  "DownloadClientSabnzbdValidationDevelopVersionDetail": "{appName} may not be able to support new features added to SABnzbd when running develop versions.",
+  "DownloadClientSabnzbdValidationEnableDisableDateSorting": "Disable Date Sorting",
+  "DownloadClientSabnzbdValidationEnableDisableDateSortingDetail": "You must disable Date sorting for the category {appName} uses to prevent import issues. Go to Sabnzbd to fix it.",
+  "DownloadClientSabnzbdValidationEnableDisableMovieSorting": "Disable Movie Sorting",
+  "DownloadClientSabnzbdValidationEnableDisableMovieSortingDetail": "You must disable Movie sorting for the category {appName} uses to prevent import issues. Go to Sabnzbd to fix it.",
+  "DownloadClientSabnzbdValidationEnableDisableTvSorting": "Disable TV Sorting",
+  "DownloadClientSabnzbdValidationEnableDisableTvSortingDetail": "You must disable TV sorting for the category {appName} uses to prevent import issues. Go to Sabnzbd to fix it.",
+  "DownloadClientSabnzbdValidationEnableJobFolders": "Enable Job folders",
+  "DownloadClientSabnzbdValidationEnableJobFoldersDetail": "{appName} prefers each download to have a separate folder. With * appended to the Folder/Path Sabnzbd will not create these job folders. Go to Sabnzbd to fix it.",
+  "DownloadClientSabnzbdValidationUnknownVersion": "Unknown Version: {rawVersion}",
   "DownloadClientSettings": "Download Client Settings",
+  "DownloadClientSettingsAddPaused": "Add Paused",
+  "DownloadClientSettingsCategoryHelpText": "Adding a category specific to {appName} avoids conflicts with unrelated non-{appName} downloads. Using a category is optional, but strongly recommended.",
+  "DownloadClientSettingsCategorySubFolderHelpText": "Adding a category specific to {appName} avoids conflicts with unrelated non-{appName} downloads. Using a category is optional, but strongly recommended. Creates a [category] subdirectory in the output directory.",
+  "DownloadClientSettingsDestinationHelpText": "Manually specifies download destination, leave blank to use the default",
+  "DownloadClientSettingsInitialState": "Initial State",
+  "DownloadClientSettingsInitialStateHelpText": "Initial state for torrents added to {clientName}",
+  "DownloadClientSettingsOlderPriority": "Older Priority",
+  "DownloadClientSettingsOlderPriorityHelpText": "Priority to use when grabbing episodes that aired over 14 days ago",
+  "DownloadClientSettingsPostImportCategoryHelpText": "Category for {appName} to set after it has imported the download. {appName} will not remove torrents in that category even if seeding finished. Leave blank to keep same category.",
+  "DownloadClientSettingsRecentPriority": "Recent Priority",
+  "DownloadClientSettingsRecentPriorityHelpText": "Priority to use when grabbing episodes that aired within the last 14 days",
+  "DownloadClientSettingsUrlBaseHelpText": "Adds a prefix to the {clientName} url, such as {url}",
+  "DownloadClientSettingsUseSslHelpText": "Use secure connection when connection to {clientName}",
   "DownloadClientSortingHealthCheckMessage": "Download client {downloadClientName} has {sortingMode} sorting enabled for {appName}'s category. You should disable sorting in your download client to avoid import issues.",
   "DownloadClientStatusAllClientHealthCheckMessage": "All download clients are unavailable due to failures",
   "DownloadClientStatusSingleClientHealthCheckMessage": "Download clients unavailable due to failures: {downloadClientNames}",
   "DownloadClientTagHelpText": "Only use this download client for series with at least one matching tag. Leave blank to use with all series.",
+  "DownloadClientTransmissionSettingsDirectoryHelpText": "Optional location to put downloads in, leave blank to use the default Transmission location",
+  "DownloadClientTransmissionSettingsUrlBaseHelpText": "Adds a prefix to the {clientName} rpc url, eg {url}, defaults to '{defaultUrl}'",
+  "DownloadClientUTorrentTorrentStateError": "uTorrent is reporting an error",
+  "DownloadClientValidationApiKeyIncorrect": "API Key Incorrect",
+  "DownloadClientValidationApiKeyRequired": "API Key Required",
+  "DownloadClientValidationAuthenticationFailure": "Authentication Failure",
+  "DownloadClientValidationAuthenticationFailureDetail": "Please verify your username and password. Also verify if the host running {appName} isn't blocked from accessing {clientName} by WhiteList limitations in the {clientName} configuration.",
+  "DownloadClientValidationCategoryMissing": "Category does not exist",
+  "DownloadClientValidationCategoryMissingDetail": "The category you entered doesn't exist in {clientName}. Create it in {clientName} first.",
+  "DownloadClientValidationErrorVersion": "{clientName} version should be at least {requiredVersion}. Version reported is {reportedVersion}",
+  "DownloadClientValidationGroupMissing": "Group does not exist",
+  "DownloadClientValidationGroupMissingDetail": "The group you entered doesn't exist in {clientName}. Create it in {clientName} first.",
+  "DownloadClientValidationSslConnectFailure": "Unable to connect through SSL",
+  "DownloadClientValidationSslConnectFailureDetail": "{appName} is unable to connect to {clientName} using SSL. This problem could be computer related. Please try to configure both {appName} and {clientName} to not use SSL.",
+  "DownloadClientValidationTestNzbs": "Failed to get the list of NZBs: {exceptionMessage}",
+  "DownloadClientValidationTestTorrents": "Failed to get the list of torrents: {exceptionMessage}",
+  "DownloadClientValidationUnableToConnect": "Unable to connect to {clientName}",
+  "DownloadClientValidationUnableToConnectDetail": "Please verify the hostname and port.",
+  "DownloadClientValidationUnknownException": "Unknown exception: {exception}",
+  "DownloadClientValidationVerifySsl": "Verify SSL settings",
+  "DownloadClientValidationVerifySslDetail": "Please verify your SSL configuration on both {clientName} and {appName}",
+  "DownloadClientVuzeValidationErrorVersion": "Protocol version not supported, use Vuze 5.0.0.0 or higher with Vuze Web Remote plugin.",
   "DownloadClients": "Download Clients",
   "DownloadClientsLoadError": "Unable to load download clients",
   "DownloadClientsSettingsSummary": "Download clients, download handling and remote path mappings",
@@ -379,6 +507,7 @@
   "DownloadPropersAndRepacksHelpText": "Whether or not to automatically upgrade to Propers/Repacks",
   "DownloadPropersAndRepacksHelpTextCustomFormat": "Use 'Do not Prefer' to sort by custom format  score over Propers/Repacks",
   "DownloadPropersAndRepacksHelpTextWarning": "Use custom formats for automatic upgrades to Propers/Repacks",
+  "DownloadStationStatusExtracting": "Extracting: {progress}%",
   "DownloadWarning": "Download warning: {warningMessage}",
   "Downloaded": "Downloaded",
   "Downloading": "Downloading",
@@ -887,6 +1016,7 @@
   "NotificationTriggersHelpText": "Select which events should trigger this notification",
   "NotificationsLoadError": "Unable to load Notifications",
   "NotificationsTagsHelpText": "Only send notifications for series with at least one matching tag",
+  "NzbgetHistoryItemMessage": "PAR Status: {parStatus} - Unpack Status: {unpackStatus} - Move Status: {moveStatus} - Script Status: {scriptStatus} - Delete Status: {deleteStatus} - Mark Status: {markStatus}",
   "Ok": "Ok",
   "OnApplicationUpdate": "On Application Update",
   "OnEpisodeFileDelete": "On Episode File Delete",
@@ -956,6 +1086,7 @@
   "Permissions": "Permissions",
   "Port": "Port",
   "PortNumber": "Port Number",
+  "PostImportCategory": "Post-Import Category",
   "PosterOptions": "Poster Options",
   "PosterSize": "Poster Size",
   "Posters": "Posters",
@@ -1202,6 +1333,7 @@
   "SeasonPremiere": "Season Premiere",
   "SeasonPremieresOnly": "Season Premieres Only",
   "Seasons": "Seasons",
+  "SecretToken": "Secret Token",
   "Security": "Security",
   "Seeders": "Seeders",
   "SelectAll": "Select All",
@@ -1379,6 +1511,14 @@
   "ToggleMonitoredToUnmonitored": "Monitored, click to unmonitor",
   "ToggleUnmonitoredToMonitored": "Unmonitored, click to monitor",
   "Tomorrow": "Tomorrow",
+  "TorrentBlackhole": "Torrent Blackhole",
+  "TorrentBlackholeSaveMagnetFiles": "Save Magnet Files",
+  "TorrentBlackholeSaveMagnetFilesExtension": "Save Magnet Files Extension",
+  "TorrentBlackholeSaveMagnetFilesExtensionHelpText": "Extension to use for magnet links, defaults to '.magnet'",
+  "TorrentBlackholeSaveMagnetFilesHelpText": "Save the magnet link if no .torrent file is available (only useful if the download client supports magnets saved to a file)",
+  "TorrentBlackholeSaveMagnetFilesReadOnly": "Read Only",
+  "TorrentBlackholeSaveMagnetFilesReadOnlyHelpText": "Instead of moving files this will instruct {appName} to Copy or Hardlink (depending on settings/system configuration)",
+  "TorrentBlackholeTorrentFolder": "Torrent Folder",
   "TorrentDelay": "Torrent Delay",
   "TorrentDelayHelpText": "Delay in minutes to wait before grabbing a torrent",
   "TorrentDelayTime": "Torrent Delay: {torrentDelay}",
@@ -1415,6 +1555,7 @@
   "Underscore": "Underscore",
   "Ungroup": "Ungroup",
   "Unknown": "Unknown",
+  "UnknownDownloadState": "Unknown download state: {state}",
   "UnknownEventTooltip": "Unknown event",
   "Unlimited": "Unlimited",
   "UnmappedFilesOnly": "Unmapped Files Only",
@@ -1459,7 +1600,10 @@
   "UseProxy": "Use Proxy",
   "UseSeasonFolder": "Use Season Folder",
   "UseSeasonFolderHelpText": "Sort episodes into season folders",
+  "UseSsl": "Use SSL",
   "Usenet": "Usenet",
+  "UsenetBlackhole": "Usenet Blackhole",
+  "UsenetBlackholeNzbFolder": "Nzb Folder",
   "UsenetDelay": "Usenet Delay",
   "UsenetDelayHelpText": "Delay in minutes to wait before grabbing a release from Usenet",
   "UsenetDelayTime": "Usenet Delay: {usenetDelay}",
@@ -1485,6 +1629,7 @@
   "Wiki": "Wiki",
   "WithFiles": "With Files",
   "WouldYouLikeToRestoreBackup": "Would you like to restore the backup '{name}'?",
+  "XmlRpcPath": "XML RPC Path",
   "Year": "Year",
   "Yes": "Yes",
   "YesCancel": "Yes, Cancel",

src/NzbDrone.Host/Bootstrap.cs

@@ -22,6 +22,7 @@ using NzbDrone.Common.Instrumentation;
 using NzbDrone.Common.Instrumentation.Extensions;
 using NzbDrone.Core.Configuration;
 using NzbDrone.Core.Datastore.Extensions;
+using Sonarr.Http.ClientSchema;
 using LogLevel = Microsoft.Extensions.Logging.LogLevel;
 
 using PostgresOptions = NzbDrone.Core.Datastore.PostgresOptions;
@@ -145,6 +146,8 @@ namespace NzbDrone.Host
                         .AddNzbDroneLogger()
                         .AddDatabase()
                         .AddStartupContext(context);
+
+                    SchemaBuilder.Initialize(c);
                 })
                 .ConfigureServices(services =>
                 {

src/NzbDrone.Integration.Test/IntegrationTest.cs

@@ -1,3 +1,5 @@
+using System;
+using System.Linq;
 using System.Threading;
 using NLog;
 using NUnit.Framework;
@@ -7,7 +9,6 @@ using NzbDrone.Core.Datastore.Migration.Framework;
 using NzbDrone.Core.Indexers.Newznab;
 using NzbDrone.Test.Common;
 using NzbDrone.Test.Common.Datastore;
-using Sonarr.Http.ClientSchema;
 
 namespace NzbDrone.Integration.Test
 {
@@ -50,17 +51,20 @@ namespace NzbDrone.Integration.Test
             // Make sure tasks have been initialized so the config put below doesn't cause errors
             WaitForCompletion(() => Tasks.All().SelectList(x => x.TaskName).Contains("RssSync"));
 
-            Indexers.Post(new Sonarr.Api.V3.Indexers.IndexerResource
+            var indexer = Indexers.Schema().FirstOrDefault(i => i.Implementation == nameof(Newznab));
+
+            if (indexer == null)
             {
-                EnableRss = false,
+                throw new NullReferenceException("Expected valid indexer schema, found null");
-                EnableInteractiveSearch = false,
+            }
-                EnableAutomaticSearch = false,
+
-                ConfigContract = nameof(NewznabSettings),
+            indexer.EnableRss = false;
-                Implementation = nameof(Newznab),
+            indexer.EnableInteractiveSearch = false;
-                Name = "NewznabTest",
+            indexer.EnableAutomaticSearch = false;
-                Protocol = Core.Indexers.DownloadProtocol.Usenet,
+            indexer.ConfigContract = nameof(NewznabSettings);
-                Fields = SchemaBuilder.ToSchema(new NewznabSettings())
+            indexer.Implementation = nameof(Newznab);
-            });
+            indexer.Name = "NewznabTest";
+            indexer.Protocol = Core.Indexers.DownloadProtocol.Usenet;
 
             // Change Console Log Level to Debug so we get more details.
             var config = HostConfig.Get(1);

src/NzbDrone.Test.Common/AutoMoq/AutoMoqer.cs

@@ -23,6 +23,8 @@ namespace NzbDrone.Test.Common.AutoMoq
             SetupAutoMoqer(CreateTestContainer(new Container()));
         }
 
+        public IContainer Container => _container;
+
         public virtual T Resolve<T>()
         {
             var result = _container.Resolve<T>();

src/Sonarr.Http/ClientSchema/SchemaBuilder.cs

@@ -3,11 +3,13 @@ using System.Collections.Generic;
 using System.Linq;
 using System.Reflection;
 using System.Text.Json;
+using DryIoc;
 using NzbDrone.Common.EnsureThat;
 using NzbDrone.Common.Extensions;
 using NzbDrone.Common.Reflection;
 using NzbDrone.Common.Serializer;
 using NzbDrone.Core.Annotations;
+using NzbDrone.Core.Localization;
 
 namespace Sonarr.Http.ClientSchema
 {
@@ -15,6 +17,12 @@ namespace Sonarr.Http.ClientSchema
     {
         private const string PRIVATE_VALUE = "********";
         private static Dictionary<Type, FieldMapping[]> _mappings = new Dictionary<Type, FieldMapping[]>();
+        private static ILocalizationService _localizationService;
+
+        public static void Initialize(IContainer container)
+        {
+            _localizationService = container.Resolve<ILocalizationService>();
+        }
 
         public static List<Field> ToSchema(object model)
         {
@@ -107,13 +115,27 @@ namespace Sonarr.Http.ClientSchema
                 if (propertyInfo.PropertyType.IsSimpleType())
                 {
                     var fieldAttribute = property.Item2;
+
+                    var label = fieldAttribute.Label.IsNotNullOrWhiteSpace()
+                        ? _localizationService.GetLocalizedString(fieldAttribute.Label,
+                            GetTokens(type, fieldAttribute.Label, TokenField.Label))
+                        : fieldAttribute.Label;
+                    var helpText = fieldAttribute.HelpText.IsNotNullOrWhiteSpace()
+                        ? _localizationService.GetLocalizedString(fieldAttribute.HelpText,
+                            GetTokens(type, fieldAttribute.Label, TokenField.HelpText))
+                        : fieldAttribute.HelpText;
+                    var helpTextWarning = fieldAttribute.HelpTextWarning.IsNotNullOrWhiteSpace()
+                        ? _localizationService.GetLocalizedString(fieldAttribute.HelpTextWarning,
+                            GetTokens(type, fieldAttribute.Label, TokenField.HelpTextWarning))
+                        : fieldAttribute.HelpTextWarning;
+
                     var field = new Field
                     {
                         Name = prefix + GetCamelCaseName(propertyInfo.Name),
-                        Label = fieldAttribute.Label,
+                        Label = label,
                         Unit = fieldAttribute.Unit,
-                        HelpText = fieldAttribute.HelpText,
+                        HelpText = helpText,
-                        HelpTextWarning = fieldAttribute.HelpTextWarning,
+                        HelpTextWarning = helpTextWarning,
                         HelpLink = fieldAttribute.HelpLink,
                         Order = fieldAttribute.Order,
                         Advanced = fieldAttribute.Advanced,
@@ -173,6 +195,24 @@ namespace Sonarr.Http.ClientSchema
                 .ToArray();
         }
 
+        private static Dictionary<string, object> GetTokens(Type type, string label, TokenField field)
+        {
+            var tokens = new Dictionary<string, object>();
+
+            foreach (var propertyInfo in type.GetProperties())
+            {
+                foreach (var attribute in propertyInfo.GetCustomAttributes(true))
+                {
+                    if (attribute is FieldTokenAttribute fieldTokenAttribute && fieldTokenAttribute.Field == field && fieldTokenAttribute.Label == label)
+                    {
+                        tokens.Add(fieldTokenAttribute.Token, fieldTokenAttribute.Value);
+                    }
+                }
+            }
+
+            return tokens;
+        }
+
         private static List<SelectOption> GetSelectOptions(Type selectOptions)
         {
             if (selectOptions.IsEnum)