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647 lines
25 KiB
647 lines
25 KiB
#nullable disable
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using System;
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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.Net;
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using System.Net.Http;
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using System.Threading;
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using System.Threading.Tasks;
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using MediaBrowser.Controller.Entities;
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using MediaBrowser.Controller.Entities.Audio;
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using MediaBrowser.Controller.Library;
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using MediaBrowser.Controller.LiveTv;
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using MediaBrowser.Controller.Providers;
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using MediaBrowser.Model.Configuration;
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using MediaBrowser.Model.Drawing;
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using MediaBrowser.Model.Entities;
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using MediaBrowser.Model.IO;
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using MediaBrowser.Model.MediaInfo;
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using MediaBrowser.Model.Net;
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using MediaBrowser.Model.Providers;
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using Microsoft.Extensions.Logging;
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namespace MediaBrowser.Providers.Manager
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{
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/// <summary>
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/// Utilities for managing images attached to items.
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/// </summary>
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public class ItemImageProvider
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{
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private readonly ILogger _logger;
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private readonly IProviderManager _providerManager;
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private readonly IFileSystem _fileSystem;
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/// <summary>
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/// Image types that are only one per item.
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/// </summary>
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private static readonly ImageType[] _singularImages =
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{
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ImageType.Primary,
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ImageType.Art,
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ImageType.Banner,
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ImageType.Box,
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ImageType.BoxRear,
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ImageType.Disc,
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ImageType.Logo,
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ImageType.Menu,
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ImageType.Thumb
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};
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/// <summary>
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/// Initializes a new instance of the <see cref="ItemImageProvider"/> class.
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/// </summary>
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/// <param name="logger">The logger.</param>
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/// <param name="providerManager">The provider manager for interacting with provider image references.</param>
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/// <param name="fileSystem">The filesystem.</param>
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public ItemImageProvider(ILogger logger, IProviderManager providerManager, IFileSystem fileSystem)
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{
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_logger = logger;
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_providerManager = providerManager;
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_fileSystem = fileSystem;
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}
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/// <summary>
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/// Removes all existing images from the provided item.
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/// </summary>
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/// <param name="item">The <see cref="BaseItem"/> to remove images from.</param>
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/// <returns><c>true</c> if changes were made to the item; otherwise <c>false</c>.</returns>
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public bool RemoveImages(BaseItem item)
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{
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var singular = new List<ItemImageInfo>();
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for (var i = 0; i < _singularImages.Length; i++)
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{
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var currentImage = item.GetImageInfo(_singularImages[i], 0);
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if (currentImage != null)
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{
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singular.Add(currentImage);
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}
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}
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singular.AddRange(item.GetImages(ImageType.Backdrop));
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PruneImages(item, singular);
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return singular.Count > 0;
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}
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/// <summary>
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/// Verifies existing images have valid paths and adds any new local images provided.
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/// </summary>
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/// <param name="item">The <see cref="BaseItem"/> to validate images for.</param>
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/// <param name="providers">The providers to use, must include <see cref="ILocalImageProvider"/>(s) for local scanning.</param>
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/// <param name="directoryService">The directory service for <see cref="ILocalImageProvider"/>s to use.</param>
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/// <returns><c>true</c> if changes were made to the item; otherwise <c>false</c>.</returns>
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public bool ValidateImages(BaseItem item, IEnumerable<IImageProvider> providers, IDirectoryService directoryService)
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{
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var hasChanges = false;
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if (item is not Photo)
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{
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var images = providers.OfType<ILocalImageProvider>()
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.SelectMany(i => i.GetImages(item, directoryService))
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.ToList();
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if (MergeImages(item, images))
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{
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hasChanges = true;
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}
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}
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return hasChanges;
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}
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/// <summary>
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/// Refreshes from the providers according to the given options.
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/// </summary>
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/// <param name="item">The <see cref="BaseItem"/> to gather images for.</param>
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/// <param name="libraryOptions">The library options.</param>
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/// <param name="providers">The providers to query for images.</param>
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/// <param name="refreshOptions">The refresh options.</param>
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/// <param name="cancellationToken">The cancellation token.</param>
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/// <returns>The refresh result.</returns>
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public async Task<RefreshResult> RefreshImages(
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BaseItem item,
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LibraryOptions libraryOptions,
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IEnumerable<IImageProvider> providers,
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ImageRefreshOptions refreshOptions,
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CancellationToken cancellationToken)
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{
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var oldBackdropImages = Array.Empty<ItemImageInfo>();
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if (refreshOptions.IsReplacingImage(ImageType.Backdrop))
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{
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oldBackdropImages = item.GetImages(ImageType.Backdrop).ToArray();
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}
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var result = new RefreshResult { UpdateType = ItemUpdateType.None };
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var typeName = item.GetType().Name;
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var typeOptions = libraryOptions.GetTypeOptions(typeName) ?? new TypeOptions { Type = typeName };
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// track library limits, adding buffer to allow lazy replacing of current images
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var backdropLimit = typeOptions.GetLimit(ImageType.Backdrop) + oldBackdropImages.Length;
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var downloadedImages = new List<ImageType>();
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foreach (var provider in providers)
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{
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if (provider is IRemoteImageProvider remoteProvider)
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{
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await RefreshFromProvider(item, remoteProvider, refreshOptions, typeOptions, backdropLimit, downloadedImages, result, cancellationToken).ConfigureAwait(false);
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continue;
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}
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if (provider is IDynamicImageProvider dynamicImageProvider)
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{
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await RefreshFromProvider(item, dynamicImageProvider, refreshOptions, typeOptions, downloadedImages, result, cancellationToken).ConfigureAwait(false);
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}
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}
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// only delete existing multi-images if new ones were added
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if (oldBackdropImages.Length > 0 && oldBackdropImages.Length < item.GetImages(ImageType.Backdrop).Count())
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{
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PruneImages(item, oldBackdropImages);
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}
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return result;
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}
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/// <summary>
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/// Refreshes from a dynamic provider.
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/// </summary>
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private async Task RefreshFromProvider(
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BaseItem item,
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IDynamicImageProvider provider,
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ImageRefreshOptions refreshOptions,
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TypeOptions savedOptions,
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ICollection<ImageType> downloadedImages,
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RefreshResult result,
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CancellationToken cancellationToken)
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{
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try
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{
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var images = provider.GetSupportedImages(item);
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foreach (var imageType in images)
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{
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if (!savedOptions.IsEnabled(imageType))
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{
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continue;
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}
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if (!item.HasImage(imageType) || (refreshOptions.IsReplacingImage(imageType) && !downloadedImages.Contains(imageType)))
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{
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_logger.LogDebug("Running {Provider} for {Item}", provider.GetType().Name, item.Path ?? item.Name);
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var response = await provider.GetImage(item, imageType, cancellationToken).ConfigureAwait(false);
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if (response.HasImage)
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{
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if (string.IsNullOrEmpty(response.Path))
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{
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var mimeType = response.Format.GetMimeType();
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await _providerManager.SaveImage(item, response.Stream, mimeType, imageType, null, cancellationToken).ConfigureAwait(false);
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}
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else
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{
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if (response.Protocol == MediaProtocol.Http)
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{
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_logger.LogDebug("Setting image url into item {Item}", item.Id);
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var index = item.AllowsMultipleImages(imageType) ? item.GetImages(imageType).Count() : 0;
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item.SetImage(
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new ItemImageInfo
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{
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Path = response.Path,
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Type = imageType
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},
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index);
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}
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else
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{
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var mimeType = MimeTypes.GetMimeType(response.Path);
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var stream = AsyncFile.OpenRead(response.Path);
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await _providerManager.SaveImage(item, stream, mimeType, imageType, null, cancellationToken).ConfigureAwait(false);
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}
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}
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downloadedImages.Add(imageType);
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result.UpdateType |= ItemUpdateType.ImageUpdate;
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}
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}
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}
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}
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catch (OperationCanceledException)
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{
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throw;
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}
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catch (Exception ex)
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{
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result.ErrorMessage = ex.Message;
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_logger.LogError(ex, "Error in {Provider}", provider.Name);
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}
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}
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/// <summary>
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/// Refreshes from a remote provider.
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/// </summary>
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/// <param name="item">The item.</param>
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/// <param name="provider">The provider.</param>
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/// <param name="refreshOptions">The refresh options.</param>
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/// <param name="savedOptions">The saved options.</param>
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/// <param name="backdropLimit">The backdrop limit.</param>
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/// <param name="downloadedImages">The downloaded images.</param>
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/// <param name="result">The result.</param>
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/// <param name="cancellationToken">The cancellation token.</param>
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/// <returns>Task.</returns>
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private async Task RefreshFromProvider(
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BaseItem item,
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IRemoteImageProvider provider,
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ImageRefreshOptions refreshOptions,
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TypeOptions savedOptions,
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int backdropLimit,
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ICollection<ImageType> downloadedImages,
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RefreshResult result,
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CancellationToken cancellationToken)
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{
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try
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{
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if (!item.SupportsRemoteImageDownloading)
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{
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return;
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}
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if (!refreshOptions.ReplaceAllImages &&
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refreshOptions.ReplaceImages.Length == 0 &&
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ContainsImages(item, provider.GetSupportedImages(item).ToList(), savedOptions, backdropLimit))
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{
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return;
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}
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_logger.LogDebug("Running {Provider} for {Item}", provider.GetType().Name, item.Path ?? item.Name);
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var images = await _providerManager.GetAvailableRemoteImages(
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item,
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new RemoteImageQuery(provider.Name)
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{
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IncludeAllLanguages = true,
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IncludeDisabledProviders = false,
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},
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cancellationToken).ConfigureAwait(false);
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var list = images.ToList();
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int minWidth;
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foreach (var imageType in _singularImages)
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{
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if (!savedOptions.IsEnabled(imageType))
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{
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continue;
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}
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if (!item.HasImage(imageType) || (refreshOptions.IsReplacingImage(imageType) && !downloadedImages.Contains(imageType)))
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{
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minWidth = savedOptions.GetMinWidth(imageType);
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var downloaded = await DownloadImage(item, provider, result, list, minWidth, imageType, cancellationToken).ConfigureAwait(false);
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if (downloaded)
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{
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downloadedImages.Add(imageType);
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}
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}
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}
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minWidth = savedOptions.GetMinWidth(ImageType.Backdrop);
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await DownloadMultiImages(item, ImageType.Backdrop, refreshOptions, backdropLimit, provider, result, list, minWidth, cancellationToken).ConfigureAwait(false);
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}
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catch (OperationCanceledException)
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{
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throw;
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}
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catch (Exception ex)
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{
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result.ErrorMessage = ex.Message;
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_logger.LogError(ex, "Error in {Provider}", provider.Name);
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}
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}
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/// <summary>
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/// Determines if an item already contains the given images.
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/// </summary>
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/// <param name="item">The item.</param>
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/// <param name="images">The images.</param>
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/// <param name="savedOptions">The saved options.</param>
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/// <param name="backdropLimit">The backdrop limit.</param>
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/// <returns><c>true</c> if the specified item contains images; otherwise, <c>false</c>.</returns>
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private bool ContainsImages(BaseItem item, List<ImageType> images, TypeOptions savedOptions, int backdropLimit)
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{
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// Using .Any causes the creation of a DisplayClass aka. variable capture
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for (var i = 0; i < _singularImages.Length; i++)
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{
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var type = _singularImages[i];
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if (images.Contains(type) && !item.HasImage(type) && savedOptions.GetLimit(type) > 0)
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{
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return false;
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}
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}
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if (images.Contains(ImageType.Backdrop) && item.GetImages(ImageType.Backdrop).Count() < backdropLimit)
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{
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return false;
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}
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return true;
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}
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private void PruneImages(BaseItem item, IReadOnlyList<ItemImageInfo> images)
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{
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for (var i = 0; i < images.Count; i++)
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{
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var image = images[i];
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if (image.IsLocalFile)
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{
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try
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{
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_fileSystem.DeleteFile(image.Path);
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}
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catch (FileNotFoundException)
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{
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// nothing to do, already gone
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}
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catch (UnauthorizedAccessException ex)
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{
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_logger.LogWarning(ex, "Unable to delete {Image}", image.Path);
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}
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}
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}
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item.RemoveImages(images);
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}
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/// <summary>
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/// Merges a list of images into the provided item, validating existing images and replacing them or adding new images as necessary.
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/// </summary>
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/// <param name="item">The <see cref="BaseItem"/> to modify.</param>
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/// <param name="images">The new images to place in <c>item</c>.</param>
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/// <returns><c>true</c> if changes were made to the item; otherwise <c>false</c>.</returns>
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public bool MergeImages(BaseItem item, IReadOnlyList<LocalImageInfo> images)
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{
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var changed = item.ValidateImages();
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for (var i = 0; i < _singularImages.Length; i++)
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{
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var type = _singularImages[i];
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var image = GetFirstLocalImageInfoByType(images, type);
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if (image != null)
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{
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var currentImage = item.GetImageInfo(type, 0);
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if (currentImage == null || !string.Equals(currentImage.Path, image.FileInfo.FullName, StringComparison.OrdinalIgnoreCase))
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{
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item.SetImagePath(type, image.FileInfo);
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changed = true;
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}
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else
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{
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var newDateModified = _fileSystem.GetLastWriteTimeUtc(image.FileInfo);
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// If date changed then we need to reset saved image dimensions
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if (currentImage.DateModified != newDateModified && (currentImage.Width > 0 || currentImage.Height > 0))
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{
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currentImage.Width = 0;
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currentImage.Height = 0;
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changed = true;
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}
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currentImage.DateModified = newDateModified;
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}
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}
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}
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if (UpdateMultiImages(item, images, ImageType.Backdrop))
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{
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changed = true;
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}
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return changed;
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}
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private static LocalImageInfo GetFirstLocalImageInfoByType(IReadOnlyList<LocalImageInfo> images, ImageType type)
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{
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var len = images.Count;
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for (var i = 0; i < len; i++)
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{
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var image = images[i];
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if (image.Type == type)
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{
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return image;
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}
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}
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return null;
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}
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private bool UpdateMultiImages(BaseItem item, IReadOnlyList<LocalImageInfo> images, ImageType type)
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{
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var changed = false;
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var newImageFileInfos = images
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.Where(i => i.Type == type)
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.Select(i => i.FileInfo)
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.ToList();
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if (item.AddImages(type, newImageFileInfos))
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{
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changed = true;
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}
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return changed;
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}
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private async Task<bool> DownloadImage(
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BaseItem item,
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IRemoteImageProvider provider,
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RefreshResult result,
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IEnumerable<RemoteImageInfo> images,
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int minWidth,
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ImageType type,
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CancellationToken cancellationToken)
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{
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var eligibleImages = images
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.Where(i => i.Type == type && (i.Width == null || i.Width >= minWidth))
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.ToList();
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if (EnableImageStub(item) && eligibleImages.Count > 0)
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{
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SaveImageStub(item, type, eligibleImages.Select(i => i.Url));
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result.UpdateType |= ItemUpdateType.ImageUpdate;
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return true;
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}
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foreach (var image in eligibleImages)
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{
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var url = image.Url;
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try
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{
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using var response = await provider.GetImageResponse(url, cancellationToken).ConfigureAwait(false);
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// Sometimes providers send back bad urls. Just move to the next image
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if (response.StatusCode == HttpStatusCode.NotFound || response.StatusCode == HttpStatusCode.Forbidden)
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{
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_logger.LogDebug("{Url} returned {StatusCode}, ignoring", url, response.StatusCode);
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continue;
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}
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if (!response.IsSuccessStatusCode)
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{
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_logger.LogWarning("{Url} returned {StatusCode}, skipping all remaining requests", url, response.StatusCode);
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break;
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}
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await using var stream = await response.Content.ReadAsStreamAsync(cancellationToken).ConfigureAwait(false);
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await _providerManager.SaveImage(
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item,
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stream,
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response.Content.Headers.ContentType?.MediaType,
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type,
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null,
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cancellationToken).ConfigureAwait(false);
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result.UpdateType |= ItemUpdateType.ImageUpdate;
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return true;
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}
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catch (HttpRequestException)
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{
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break;
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}
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}
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return false;
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}
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private bool EnableImageStub(BaseItem item)
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{
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if (item is LiveTvProgram)
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{
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return true;
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}
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|
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if (!item.IsFileProtocol)
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{
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return true;
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}
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|
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if (item is IItemByName and not MusicArtist)
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{
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var hasDualAccess = item as IHasDualAccess;
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if (hasDualAccess == null || hasDualAccess.IsAccessedByName)
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{
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return true;
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}
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}
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// We always want to use prefetched images
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return false;
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}
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private void SaveImageStub(BaseItem item, ImageType imageType, IEnumerable<string> urls)
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{
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var newIndex = item.AllowsMultipleImages(imageType) ? item.GetImages(imageType).Count() : 0;
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SaveImageStub(item, imageType, urls, newIndex);
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}
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|
|
|
private void SaveImageStub(BaseItem item, ImageType imageType, IEnumerable<string> urls, int newIndex)
|
|
{
|
|
var path = string.Join('|', urls.Take(1));
|
|
|
|
item.SetImage(
|
|
new ItemImageInfo
|
|
{
|
|
Path = path,
|
|
Type = imageType
|
|
},
|
|
newIndex);
|
|
}
|
|
|
|
private async Task DownloadMultiImages(BaseItem item, ImageType imageType, ImageRefreshOptions refreshOptions, int limit, IRemoteImageProvider provider, RefreshResult result, IEnumerable<RemoteImageInfo> images, int minWidth, CancellationToken cancellationToken)
|
|
{
|
|
foreach (var image in images.Where(i => i.Type == imageType))
|
|
{
|
|
if (item.GetImages(imageType).Count() >= limit)
|
|
{
|
|
break;
|
|
}
|
|
|
|
if (image.Width.HasValue && image.Width.Value < minWidth)
|
|
{
|
|
continue;
|
|
}
|
|
|
|
var url = image.Url;
|
|
|
|
if (EnableImageStub(item))
|
|
{
|
|
SaveImageStub(item, imageType, new[] { url });
|
|
result.UpdateType |= ItemUpdateType.ImageUpdate;
|
|
continue;
|
|
}
|
|
|
|
try
|
|
{
|
|
using var response = await provider.GetImageResponse(url, cancellationToken).ConfigureAwait(false);
|
|
|
|
// Sometimes providers send back bad urls. Just move to the next image
|
|
if (response.StatusCode == HttpStatusCode.NotFound || response.StatusCode == HttpStatusCode.Forbidden)
|
|
{
|
|
_logger.LogDebug("{Url} returned {StatusCode}, ignoring", url, response.StatusCode);
|
|
continue;
|
|
}
|
|
|
|
if (!response.IsSuccessStatusCode)
|
|
{
|
|
_logger.LogWarning("{Url} returned {StatusCode}, skipping all remaining requests", url, response.StatusCode);
|
|
break;
|
|
}
|
|
|
|
// If there's already an image of the same file size, skip it unless doing a full refresh
|
|
if (response.Content.Headers.ContentLength.HasValue && !refreshOptions.IsReplacingImage(imageType))
|
|
{
|
|
try
|
|
{
|
|
if (item.GetImages(imageType).Any(i => _fileSystem.GetFileInfo(i.Path).Length == response.Content.Headers.ContentLength.Value))
|
|
{
|
|
response.Content.Dispose();
|
|
continue;
|
|
}
|
|
}
|
|
catch (IOException ex)
|
|
{
|
|
_logger.LogError(ex, "Error examining images");
|
|
}
|
|
}
|
|
|
|
await using var stream = await response.Content.ReadAsStreamAsync(cancellationToken).ConfigureAwait(false);
|
|
await _providerManager.SaveImage(
|
|
item,
|
|
stream,
|
|
response.Content.Headers.ContentType?.MediaType,
|
|
imageType,
|
|
null,
|
|
cancellationToken).ConfigureAwait(false);
|
|
result.UpdateType |= ItemUpdateType.ImageUpdate;
|
|
}
|
|
catch (HttpRequestException)
|
|
{
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|