2019-01-13 14:54:44 -05:00
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using System;
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2016-10-29 01:40:15 -04:00
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using System.Collections.Generic;
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using System.IO;
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using System.Linq;
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using System.Threading;
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using System.Threading.Tasks;
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using MediaBrowser.Common.Configuration;
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using MediaBrowser.Model.IO;
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using MediaBrowser.Model.Tasks;
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2019-01-13 14:22:24 -05:00
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using Microsoft.Extensions.Logging;
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2016-10-29 01:40:15 -04:00
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2017-08-16 02:43:41 -04:00
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namespace Emby.Server.Implementations.ScheduledTasks.Tasks
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2016-10-29 01:40:15 -04:00
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{
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/// <summary>
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/// Deletes old cache files
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/// </summary>
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public class DeleteCacheFileTask : IScheduledTask, IConfigurableScheduledTask
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{
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/// <summary>
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/// Gets or sets the application paths.
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/// </summary>
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/// <value>The application paths.</value>
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private IApplicationPaths ApplicationPaths { get; set; }
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private readonly ILogger _logger;
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private readonly IFileSystem _fileSystem;
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/// <summary>
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/// Initializes a new instance of the <see cref="DeleteCacheFileTask" /> class.
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/// </summary>
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public DeleteCacheFileTask(IApplicationPaths appPaths, ILogger logger, IFileSystem fileSystem)
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{
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ApplicationPaths = appPaths;
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_logger = logger;
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_fileSystem = fileSystem;
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}
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/// <summary>
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/// Creates the triggers that define when the task will run
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/// </summary>
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/// <returns>IEnumerable{BaseTaskTrigger}.</returns>
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public IEnumerable<TaskTriggerInfo> GetDefaultTriggers()
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{
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2019-01-07 18:27:46 -05:00
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return new[] {
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2016-10-29 01:40:15 -04:00
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// Every so often
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new TaskTriggerInfo { Type = TaskTriggerInfo.TriggerInterval, IntervalTicks = TimeSpan.FromHours(24).Ticks}
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};
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}
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/// <summary>
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/// Returns the task to be executed
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/// </summary>
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/// <param name="cancellationToken">The cancellation token.</param>
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/// <param name="progress">The progress.</param>
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/// <returns>Task.</returns>
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public Task Execute(CancellationToken cancellationToken, IProgress<double> progress)
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{
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var minDateModified = DateTime.UtcNow.AddDays(-30);
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try
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{
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DeleteCacheFilesFromDirectory(cancellationToken, ApplicationPaths.CachePath, minDateModified, progress);
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}
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catch (DirectoryNotFoundException)
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{
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// No biggie here. Nothing to delete
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}
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progress.Report(90);
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minDateModified = DateTime.UtcNow.AddDays(-1);
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try
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{
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DeleteCacheFilesFromDirectory(cancellationToken, ApplicationPaths.TempDirectory, minDateModified, progress);
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}
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catch (DirectoryNotFoundException)
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{
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// No biggie here. Nothing to delete
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}
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2018-09-12 13:26:21 -04:00
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return Task.CompletedTask;
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2016-10-29 01:40:15 -04:00
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}
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/// <summary>
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/// Deletes the cache files from directory with a last write time less than a given date
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/// </summary>
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/// <param name="cancellationToken">The task cancellation token.</param>
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/// <param name="directory">The directory.</param>
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/// <param name="minDateModified">The min date modified.</param>
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/// <param name="progress">The progress.</param>
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private void DeleteCacheFilesFromDirectory(CancellationToken cancellationToken, string directory, DateTime minDateModified, IProgress<double> progress)
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{
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var filesToDelete = _fileSystem.GetFiles(directory, true)
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.Where(f => _fileSystem.GetLastWriteTimeUtc(f) < minDateModified)
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.ToList();
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var index = 0;
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foreach (var file in filesToDelete)
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{
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double percent = index;
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percent /= filesToDelete.Count;
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progress.Report(100 * percent);
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cancellationToken.ThrowIfCancellationRequested();
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DeleteFile(file.FullName);
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index++;
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}
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DeleteEmptyFolders(directory);
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progress.Report(100);
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}
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private void DeleteEmptyFolders(string parent)
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{
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foreach (var directory in _fileSystem.GetDirectoryPaths(parent))
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{
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DeleteEmptyFolders(directory);
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if (!_fileSystem.GetFileSystemEntryPaths(directory).Any())
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{
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try
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{
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2019-01-26 16:08:04 -05:00
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Directory.Delete(directory, false);
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}
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catch (UnauthorizedAccessException ex)
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{
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2018-12-20 07:11:26 -05:00
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_logger.LogError(ex, "Error deleting directory {path}", directory);
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2016-10-29 01:40:15 -04:00
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}
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catch (IOException ex)
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{
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2018-12-20 07:11:26 -05:00
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_logger.LogError(ex, "Error deleting directory {path}", directory);
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2016-10-29 01:40:15 -04:00
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}
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}
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}
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}
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private void DeleteFile(string path)
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{
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try
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{
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_fileSystem.DeleteFile(path);
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}
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catch (UnauthorizedAccessException ex)
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{
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2018-12-20 07:11:26 -05:00
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_logger.LogError(ex, "Error deleting file {path}", path);
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2016-10-29 01:40:15 -04:00
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}
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catch (IOException ex)
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{
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2018-12-20 07:11:26 -05:00
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_logger.LogError(ex, "Error deleting file {path}", path);
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2016-10-29 01:40:15 -04:00
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}
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}
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2020-02-01 08:27:25 -05:00
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public string Name => "Clean Cache Directory";
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2016-10-29 01:40:15 -04:00
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2020-02-01 08:27:25 -05:00
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public string Description => "Deletes cache files no longer needed by the system.";
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2016-10-29 01:40:15 -04:00
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2019-01-06 15:50:43 -05:00
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public string Category => "Maintenance";
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2019-01-31 01:20:34 -05:00
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public string Key => "DeleteCacheFiles";
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public bool IsHidden => false;
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2019-01-06 15:50:43 -05:00
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public bool IsEnabled => true;
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2019-01-06 15:50:43 -05:00
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public bool IsLogged => true;
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2016-10-29 01:40:15 -04:00
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}
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}
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