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442 lines
17 KiB
442 lines
17 KiB
using System;
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using System.Collections.Generic;
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using System.Linq;
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using System.Net;
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using FluentValidation.Results;
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using NLog;
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using NzbDrone.Common.Disk;
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using NzbDrone.Common.Extensions;
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using NzbDrone.Common.Http;
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using NzbDrone.Core.Configuration;
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using NzbDrone.Core.Download.Clients.DownloadStation.Proxies;
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using NzbDrone.Core.Parser.Model;
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using NzbDrone.Core.RemotePathMappings;
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using NzbDrone.Core.ThingiProvider;
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using NzbDrone.Core.Validation;
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namespace NzbDrone.Core.Download.Clients.DownloadStation
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{
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public class UsenetDownloadStation : UsenetClientBase<DownloadStationSettings>
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{
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protected readonly IDownloadStationInfoProxy _dsInfoProxy;
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protected readonly IDownloadStationTaskProxySelector _dsTaskProxySelector;
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protected readonly ISharedFolderResolver _sharedFolderResolver;
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protected readonly ISerialNumberProvider _serialNumberProvider;
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protected readonly IFileStationProxy _fileStationProxy;
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public UsenetDownloadStation(ISharedFolderResolver sharedFolderResolver,
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ISerialNumberProvider serialNumberProvider,
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IFileStationProxy fileStationProxy,
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IDownloadStationInfoProxy dsInfoProxy,
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IDownloadStationTaskProxySelector dsTaskProxySelector,
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IHttpClient httpClient,
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IConfigService configService,
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IDiskProvider diskProvider,
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IRemotePathMappingService remotePathMappingService,
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IValidateNzbs nzbValidationService,
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Logger logger)
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: base(httpClient, configService, diskProvider, remotePathMappingService, nzbValidationService, logger)
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{
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_dsInfoProxy = dsInfoProxy;
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_dsTaskProxySelector = dsTaskProxySelector;
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_fileStationProxy = fileStationProxy;
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_sharedFolderResolver = sharedFolderResolver;
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_serialNumberProvider = serialNumberProvider;
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}
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public override string Name => "Download Station";
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public override ProviderMessage Message => new ProviderMessage("Lidarr is unable to connect to Download Station if 2-Factor Authentication is enabled on your DSM account", ProviderMessageType.Warning);
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private IDownloadStationTaskProxy DsTaskProxy => _dsTaskProxySelector.GetProxy(Settings);
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protected IEnumerable<DownloadStationTask> GetTasks()
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{
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return DsTaskProxy.GetTasks(Settings).Where(v => v.Type.ToLower() == DownloadStationTaskType.NZB.ToString().ToLower());
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}
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public override IEnumerable<DownloadClientItem> GetItems()
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{
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var nzbTasks = GetTasks();
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var serialNumber = _serialNumberProvider.GetSerialNumber(Settings);
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var items = new List<DownloadClientItem>();
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long totalRemainingSize = 0;
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var globalSpeed = nzbTasks.Where(t => t.Status == DownloadStationTaskStatus.Downloading)
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.Select(GetDownloadSpeed)
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.Sum();
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foreach (var nzb in nzbTasks)
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{
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var outputPath = new OsPath($"/{nzb.Additional.Detail["destination"]}");
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var taskRemainingSize = GetRemainingSize(nzb);
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if (nzb.Status != DownloadStationTaskStatus.Paused)
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{
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totalRemainingSize += taskRemainingSize;
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}
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if (Settings.MusicDirectory.IsNotNullOrWhiteSpace())
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{
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if (!new OsPath($"/{Settings.MusicDirectory}").Contains(outputPath))
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{
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continue;
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}
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}
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else if (Settings.MusicCategory.IsNotNullOrWhiteSpace())
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{
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var directories = outputPath.FullPath.Split('\\', '/');
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if (!directories.Contains(Settings.MusicCategory))
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{
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continue;
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}
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}
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var item = new DownloadClientItem()
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{
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Category = Settings.MusicCategory,
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DownloadClientInfo = DownloadClientItemClientInfo.FromDownloadClient(this),
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DownloadId = CreateDownloadId(nzb.Id, serialNumber),
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Title = nzb.Title,
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TotalSize = nzb.Size,
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RemainingSize = taskRemainingSize,
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Status = GetStatus(nzb),
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Message = GetMessage(nzb),
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CanBeRemoved = true,
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CanMoveFiles = true
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};
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if (item.Status != DownloadItemStatus.Paused)
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{
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item.RemainingTime = GetRemainingTime(totalRemainingSize, globalSpeed);
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}
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if (item.Status == DownloadItemStatus.Completed || item.Status == DownloadItemStatus.Failed)
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{
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item.OutputPath = GetOutputPath(outputPath, nzb, serialNumber);
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}
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items.Add(item);
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}
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return items;
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}
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protected OsPath GetOutputPath(OsPath outputPath, DownloadStationTask task, string serialNumber)
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{
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var fullPath = _sharedFolderResolver.RemapToFullPath(outputPath, Settings, serialNumber);
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var remotePath = _remotePathMappingService.RemapRemoteToLocal(Settings.Host, fullPath);
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var finalPath = remotePath + task.Title;
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return finalPath;
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}
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public override DownloadClientInfo GetStatus()
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{
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try
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{
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var serialNumber = _serialNumberProvider.GetSerialNumber(Settings);
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// Download station returns the path without the leading `/`, but the leading
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// slash is required to get the full path back from download station.
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var path = new OsPath($"/{GetDownloadDirectory()}");
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var fullPath = _sharedFolderResolver.RemapToFullPath(path, Settings, serialNumber);
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return new DownloadClientInfo
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{
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IsLocalhost = Settings.Host == "127.0.0.1" || Settings.Host == "localhost",
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OutputRootFolders = new List<OsPath> { _remotePathMappingService.RemapRemoteToLocal(Settings.Host, fullPath) }
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};
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}
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catch (DownloadClientException e)
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{
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_logger.Debug(e, "Failed to get config from Download Station");
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throw;
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}
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}
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public override void RemoveItem(DownloadClientItem item, bool deleteData)
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{
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if (deleteData)
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{
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DeleteItemData(item);
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}
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DsTaskProxy.RemoveTask(ParseDownloadId(item.DownloadId), Settings);
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_logger.Debug("{0} removed correctly", item.DownloadId);
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}
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protected override string AddFromNzbFile(RemoteAlbum remoteAlbum, string filename, byte[] fileContent)
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{
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var hashedSerialNumber = _serialNumberProvider.GetSerialNumber(Settings);
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DsTaskProxy.AddTaskFromData(fileContent, filename, GetDownloadDirectory(), Settings);
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var items = GetTasks().Where(t => t.Additional.Detail["uri"] == filename);
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var item = items.SingleOrDefault();
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if (item != null)
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{
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_logger.Debug("{0} added correctly", remoteAlbum);
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return CreateDownloadId(item.Id, hashedSerialNumber);
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}
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_logger.Debug("No such task {0} in Download Station", filename);
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throw new DownloadClientException("Failed to add NZB task to Download Station");
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}
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protected override void Test(List<ValidationFailure> failures)
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{
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failures.AddIfNotNull(TestConnection());
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if (failures.HasErrors())
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{
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return;
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}
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failures.AddIfNotNull(TestOutputPath());
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failures.AddIfNotNull(TestGetNZB());
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}
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protected ValidationFailure TestOutputPath()
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{
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try
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{
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var downloadDir = GetDefaultDir();
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if (downloadDir == null)
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{
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return new NzbDroneValidationFailure(nameof(Settings.MusicDirectory), "No default destination")
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{
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DetailedDescription = $"You must login into your Diskstation as {Settings.Username} and manually set it up into DownloadStation settings under BT/HTTP/FTP/NZB -> Location."
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};
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}
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downloadDir = GetDownloadDirectory();
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if (downloadDir != null)
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{
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var sharedFolder = downloadDir.Split('\\', '/')[0];
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var fieldName = Settings.MusicDirectory.IsNotNullOrWhiteSpace() ? nameof(Settings.MusicDirectory) : nameof(Settings.MusicCategory);
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var folderInfo = _fileStationProxy.GetInfoFileOrDirectory($"/{downloadDir}", Settings);
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if (folderInfo.Additional == null)
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{
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return new NzbDroneValidationFailure(fieldName, $"Shared folder does not exist")
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{
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DetailedDescription = $"The Diskstation does not have a Shared Folder with the name '{sharedFolder}', are you sure you specified it correctly?"
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};
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}
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if (!folderInfo.IsDir)
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{
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return new NzbDroneValidationFailure(fieldName, $"Folder does not exist")
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{
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DetailedDescription = $"The folder '{downloadDir}' does not exist, it must be created manually inside the Shared Folder '{sharedFolder}'."
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};
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}
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}
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return null;
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}
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catch (DownloadClientAuthenticationException ex)
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{
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// User could not have permission to access to downloadstation
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_logger.Error(ex, "Unable to authenticate");
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return new NzbDroneValidationFailure(string.Empty, ex.Message);
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}
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catch (Exception ex)
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{
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_logger.Error(ex, "Error testing Usenet Download Station");
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return new NzbDroneValidationFailure(string.Empty, $"Unknown exception: {ex.Message}");
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}
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}
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protected ValidationFailure TestConnection()
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{
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try
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{
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return ValidateVersion();
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}
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catch (DownloadClientAuthenticationException ex)
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{
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_logger.Error(ex, "Unable to authenticate");
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return new NzbDroneValidationFailure("Username", "Authentication failure")
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{
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DetailedDescription = $"Please verify your username and password. Also verify if the host running Lidarr isn't blocked from accessing {Name} by WhiteList limitations in the {Name} configuration."
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};
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}
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catch (WebException ex)
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{
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_logger.Error(ex, "Unable to connect to Usenet Download Station");
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if (ex.Status == WebExceptionStatus.ConnectFailure)
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{
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return new NzbDroneValidationFailure("Host", "Unable to connect")
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{
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DetailedDescription = "Please verify the hostname and port."
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};
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}
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return new NzbDroneValidationFailure(string.Empty, "Unknown exception: " + ex.Message);
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}
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catch (Exception ex)
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{
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_logger.Error(ex, "Error testing Torrent Download Station");
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return new NzbDroneValidationFailure("Host", "Unable to connect to Usenet Download Station")
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{
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DetailedDescription = ex.Message
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};
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}
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}
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protected ValidationFailure ValidateVersion()
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{
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var info = DsTaskProxy.GetApiInfo(Settings);
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_logger.Debug("Download Station api version information: Min {0} - Max {1}", info.MinVersion, info.MaxVersion);
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if (info.MinVersion > 2 || info.MaxVersion < 2)
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{
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return new ValidationFailure(string.Empty, $"Download Station API version not supported, should be at least 2. It supports from {info.MinVersion} to {info.MaxVersion}");
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}
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return null;
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}
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protected string GetMessage(DownloadStationTask task)
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{
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if (task.StatusExtra != null)
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{
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if (task.Status == DownloadStationTaskStatus.Extracting)
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{
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return $"Extracting: {int.Parse(task.StatusExtra["unzip_progress"])}%";
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}
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if (task.Status == DownloadStationTaskStatus.Error)
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{
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return task.StatusExtra["error_detail"];
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}
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}
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return null;
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}
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protected DownloadItemStatus GetStatus(DownloadStationTask task)
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{
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switch (task.Status)
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{
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case DownloadStationTaskStatus.Unknown:
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case DownloadStationTaskStatus.Waiting:
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case DownloadStationTaskStatus.FilehostingWaiting:
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return task.Size == 0 || GetRemainingSize(task) > 0 ? DownloadItemStatus.Queued : DownloadItemStatus.Completed;
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case DownloadStationTaskStatus.Paused:
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return DownloadItemStatus.Paused;
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case DownloadStationTaskStatus.Finished:
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case DownloadStationTaskStatus.Seeding:
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return DownloadItemStatus.Completed;
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case DownloadStationTaskStatus.Error:
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return DownloadItemStatus.Failed;
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}
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return DownloadItemStatus.Downloading;
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}
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protected long GetRemainingSize(DownloadStationTask task)
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{
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var downloadedString = task.Additional.Transfer["size_downloaded"];
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if (downloadedString.IsNullOrWhiteSpace() || !long.TryParse(downloadedString, out var downloadedSize))
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{
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_logger.Debug("Task {0} has invalid size_downloaded: {1}", task.Title, downloadedString);
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downloadedSize = 0;
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}
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return task.Size - Math.Max(0, downloadedSize);
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}
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protected long GetDownloadSpeed(DownloadStationTask task)
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{
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var speedString = task.Additional.Transfer["speed_download"];
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if (speedString.IsNullOrWhiteSpace() || !long.TryParse(speedString, out var downloadSpeed))
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{
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_logger.Debug("Task {0} has invalid speed_download: {1}", task.Title, speedString);
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downloadSpeed = 0;
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}
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return Math.Max(downloadSpeed, 0);
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}
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protected TimeSpan? GetRemainingTime(long remainingSize, long downloadSpeed)
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{
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if (downloadSpeed > 0)
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{
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return TimeSpan.FromSeconds(remainingSize / downloadSpeed);
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}
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else
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{
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return null;
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}
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}
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protected ValidationFailure TestGetNZB()
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{
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try
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{
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GetItems();
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return null;
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}
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catch (Exception ex)
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{
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return new NzbDroneValidationFailure(string.Empty, "Failed to get the list of NZBs: " + ex.Message);
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}
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}
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protected string ParseDownloadId(string id)
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{
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return id.Split(':')[1];
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}
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protected string CreateDownloadId(string id, string hashedSerialNumber)
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{
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return $"{hashedSerialNumber}:{id}";
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}
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protected string GetDefaultDir()
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{
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var config = _dsInfoProxy.GetConfig(Settings);
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var path = config["default_destination"] as string;
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return path;
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}
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protected string GetDownloadDirectory()
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{
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if (Settings.MusicDirectory.IsNotNullOrWhiteSpace())
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{
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return Settings.MusicDirectory.TrimStart('/');
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}
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var destDir = GetDefaultDir();
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if (Settings.MusicCategory.IsNotNullOrWhiteSpace())
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{
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return $"{destDir.TrimEnd('/')}/{Settings.MusicCategory}";
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}
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return destDir.TrimEnd('/');
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}
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}
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}
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