mirror of
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283 lines
9.9 KiB
C#
283 lines
9.9 KiB
C#
using MediaBrowser.Common.IO;
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using MediaBrowser.Controller.Configuration;
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using MediaBrowser.Controller.Entities;
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using MediaBrowser.Controller.Entities.Audio;
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using MediaBrowser.Controller.Entities.TV;
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using MediaBrowser.Controller.IO;
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using MediaBrowser.Model.Entities;
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using System;
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using System.Globalization;
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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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namespace MediaBrowser.Server.Implementations.Providers
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{
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/// <summary>
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/// Class ImageSaver
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/// </summary>
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public class ImageSaver
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{
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private static readonly CultureInfo UsCulture = new CultureInfo("en-US");
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/// <summary>
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/// The _config
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/// </summary>
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private readonly IServerConfigurationManager _config;
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/// <summary>
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/// The remote image cache
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/// </summary>
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private readonly FileSystemRepository _remoteImageCache;
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/// <summary>
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/// The _directory watchers
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/// </summary>
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private readonly IDirectoryWatchers _directoryWatchers;
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/// <summary>
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/// Initializes a new instance of the <see cref="ImageSaver"/> class.
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/// </summary>
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/// <param name="config">The config.</param>
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/// <param name="directoryWatchers">The directory watchers.</param>
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public ImageSaver(IServerConfigurationManager config, IDirectoryWatchers directoryWatchers)
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{
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_config = config;
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_directoryWatchers = directoryWatchers;
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_remoteImageCache = new FileSystemRepository(config.ApplicationPaths.DownloadedImagesDataPath);
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}
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/// <summary>
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/// Saves the image.
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/// </summary>
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/// <param name="item">The item.</param>
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/// <param name="source">The source.</param>
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/// <param name="mimeType">Type of the MIME.</param>
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/// <param name="type">The type.</param>
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/// <param name="imageIndex">Index of the image.</param>
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/// <param name="cancellationToken">The cancellation token.</param>
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/// <returns>Task.</returns>
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public async Task SaveImage(BaseItem item, Stream source, string mimeType, ImageType type, int? imageIndex, CancellationToken cancellationToken)
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{
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if (string.IsNullOrEmpty(mimeType))
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{
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throw new ArgumentNullException("mimeType");
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}
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var saveLocally = _config.Configuration.SaveLocalMeta;
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if (item is IItemByName)
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{
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saveLocally = true;
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}
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else if (item is User)
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{
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saveLocally = true;
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}
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else if (item is Audio || item.Parent == null || string.IsNullOrEmpty(item.MetaLocation))
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{
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saveLocally = false;
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}
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if (type != ImageType.Primary)
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{
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if (item is Episode)
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{
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saveLocally = false;
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}
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}
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if (item.LocationType == LocationType.Remote || item.LocationType == LocationType.Virtual)
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{
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saveLocally = false;
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}
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var path = GetSavePath(item, type, imageIndex, mimeType, saveLocally);
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var currentPath = GetCurrentImagePath(item, type, imageIndex);
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try
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{
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_directoryWatchers.TemporarilyIgnore(path);
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using (source)
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{
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using (var fs = new FileStream(path, FileMode.Create, FileAccess.Write, FileShare.Read, StreamDefaults.DefaultFileStreamBufferSize, FileOptions.Asynchronous))
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{
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await source.CopyToAsync(fs, StreamDefaults.DefaultCopyToBufferSize, cancellationToken).ConfigureAwait(false);
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}
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}
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SetImagePath(item, type, imageIndex, path);
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if (!string.IsNullOrEmpty(currentPath) && !string.Equals(path, currentPath, StringComparison.OrdinalIgnoreCase))
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{
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File.Delete(currentPath);
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}
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}
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finally
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{
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_directoryWatchers.RemoveTempIgnore(path);
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}
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}
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private string GetCurrentImagePath(BaseItem item, ImageType type, int? imageIndex)
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{
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switch (type)
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{
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case ImageType.Screenshot:
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if (!imageIndex.HasValue)
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{
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throw new ArgumentNullException("imageIndex");
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}
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return item.ScreenshotImagePaths.Count > imageIndex.Value ? item.ScreenshotImagePaths[imageIndex.Value] : null;
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case ImageType.Backdrop:
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if (!imageIndex.HasValue)
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{
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throw new ArgumentNullException("imageIndex");
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}
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return item.BackdropImagePaths.Count > imageIndex.Value ? item.BackdropImagePaths[imageIndex.Value] : null;
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default:
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return item.GetImage(type);
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}
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}
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private void SetImagePath(BaseItem item, ImageType type, int? imageIndex, string path)
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{
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switch (type)
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{
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case ImageType.Screenshot:
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if (!imageIndex.HasValue)
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{
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throw new ArgumentNullException("imageIndex");
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}
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if (item.ScreenshotImagePaths.Count > imageIndex.Value)
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{
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item.ScreenshotImagePaths[imageIndex.Value] = path;
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}
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else
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{
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item.ScreenshotImagePaths.Add(path);
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}
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break;
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case ImageType.Backdrop:
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if (!imageIndex.HasValue)
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{
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throw new ArgumentNullException("imageIndex");
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}
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if (item.BackdropImagePaths.Count > imageIndex.Value)
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{
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item.BackdropImagePaths[imageIndex.Value] = path;
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}
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else
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{
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item.BackdropImagePaths.Add(path);
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}
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break;
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default:
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item.SetImage(type, path);
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break;
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}
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}
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/// <summary>
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/// Gets the save path.
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/// </summary>
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/// <param name="item">The item.</param>
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/// <param name="type">The type.</param>
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/// <param name="imageIndex">Index of the image.</param>
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/// <param name="mimeType">Type of the MIME.</param>
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/// <param name="saveLocally">if set to <c>true</c> [save locally].</param>
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/// <returns>System.String.</returns>
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/// <exception cref="System.ArgumentNullException">
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/// imageIndex
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/// or
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/// imageIndex
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/// </exception>
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private string GetSavePath(BaseItem item, ImageType type, int? imageIndex, string mimeType, bool saveLocally)
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{
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string filename;
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switch (type)
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{
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case ImageType.Art:
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filename = "clearart";
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break;
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case ImageType.Primary:
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filename = item is Episode ? Path.GetFileNameWithoutExtension(item.Path) : "folder";
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break;
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case ImageType.Backdrop:
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if (!imageIndex.HasValue)
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{
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throw new ArgumentNullException("imageIndex");
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}
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filename = imageIndex.Value == 0 ? "backdrop" : "backdrop" + imageIndex.Value.ToString(UsCulture);
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break;
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case ImageType.Screenshot:
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if (!imageIndex.HasValue)
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{
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throw new ArgumentNullException("imageIndex");
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}
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filename = imageIndex.Value == 0 ? "screenshot" : "screenshot" + imageIndex.Value.ToString(UsCulture);
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break;
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default:
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filename = type.ToString().ToLower();
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break;
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}
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var extension = mimeType.Split('/').Last();
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if (string.Equals(extension, "jpeg", StringComparison.OrdinalIgnoreCase))
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{
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extension = "jpg";
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}
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filename += "." + extension.ToLower();
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string path = null;
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if (saveLocally)
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{
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if (item.IsInMixedFolder && !(item is Episode))
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{
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path = GetSavePathForItemInMixedFolder(item, type, filename, extension);
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}
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if (string.IsNullOrEmpty(path) && !string.IsNullOrEmpty(item.MetaLocation))
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{
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path = Path.Combine(item.MetaLocation, filename);
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}
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}
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// None of the save local conditions passed, so store it in our internal folders
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if (string.IsNullOrEmpty(path))
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{
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path = _remoteImageCache.GetResourcePath(item.GetType().FullName + item.Id, filename);
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}
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var parentPath = Path.GetDirectoryName(path);
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if (!Directory.Exists(parentPath))
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{
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Directory.CreateDirectory(parentPath);
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}
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return path;
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}
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private string GetSavePathForItemInMixedFolder(BaseItem item, ImageType type, string imageFilename, string extension)
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{
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if (type == ImageType.Primary)
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{
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return Path.ChangeExtension(item.Path, extension);
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}
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var folder = Path.GetDirectoryName(item.Path);
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return Path.Combine(folder, Path.GetFileNameWithoutExtension(item.Path) + "-" + imageFilename);
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}
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}
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}
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