634 lines
23 KiB
C#
634 lines
23 KiB
C#
#pragma warning disable CA1002, CS1591
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using System;
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using System.Collections.Generic;
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using System.Collections.ObjectModel;
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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.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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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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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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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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public async Task<RefreshResult> RefreshImages(
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BaseItem item,
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LibraryOptions libraryOptions,
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List<IImageProvider> providers,
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ImageRefreshOptions refreshOptions,
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CancellationToken cancellationToken)
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{
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if (refreshOptions.IsReplacingImage(ImageType.Backdrop))
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{
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ClearImages(item, ImageType.Backdrop);
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}
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if (refreshOptions.IsReplacingImage(ImageType.Screenshot))
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{
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ClearImages(item, ImageType.Screenshot);
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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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// In order to avoid duplicates, only download these if there are none already
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var backdropLimit = typeOptions.GetLimit(ImageType.Backdrop);
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var screenshotLimit = typeOptions.GetLimit(ImageType.Screenshot);
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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, screenshotLimit, 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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return result;
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}
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/// <summary>
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/// Refreshes from 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 (!IsEnabled(savedOptions, imageType))
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{
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continue;
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}
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if (!HasImage(item, imageType) || (refreshOptions.IsReplacingImage(imageType) && !downloadedImages.Contains(imageType)))
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{
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_logger.LogDebug("Running {0} for {1}", 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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if (response.Protocol == MediaProtocol.Http)
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{
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_logger.LogDebug("Setting image url into item {0}", item.Id);
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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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0);
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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 = new FileStream(response.Path, FileMode.Open, FileAccess.Read, FileShare.Read, IODefaults.FileStreamBufferSize, true);
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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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else
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{
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var mimeType = "image/" + response.Format.ToString().ToLowerInvariant();
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await _providerManager.SaveImage(item, response.Stream, mimeType, imageType, null, cancellationToken).ConfigureAwait(false);
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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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private bool HasImage(BaseItem item, ImageType type)
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{
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return item.HasImage(type);
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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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/// <param name="screenshotLimit">The screenshot 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, int screenshotLimit)
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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) && !HasImage(item, 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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if (images.Contains(ImageType.Screenshot) && item.GetImages(ImageType.Screenshot).Count() < screenshotLimit)
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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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/// <summary>
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/// Refreshes from 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="screenshotLimit">The screenshot 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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int screenshotLimit,
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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, screenshotLimit))
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{
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return;
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}
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_logger.LogDebug("Running {0} for {1}", 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 = false,
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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 (!IsEnabled(savedOptions, imageType))
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{
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continue;
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}
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if (!HasImage(item, 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 DownloadBackdrops(item, ImageType.Backdrop, backdropLimit, provider, result, list, minWidth, cancellationToken).ConfigureAwait(false);
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if (item is IHasScreenshots hasScreenshots)
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{
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minWidth = savedOptions.GetMinWidth(ImageType.Screenshot);
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await DownloadBackdrops(item, ImageType.Screenshot, screenshotLimit, provider, result, list, minWidth, cancellationToken).ConfigureAwait(false);
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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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private bool IsEnabled(TypeOptions options, ImageType type)
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{
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return options.IsEnabled(type);
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}
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private void ClearImages(BaseItem item, ImageType type)
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{
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var deleted = false;
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var deletedImages = new List<ItemImageInfo>();
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foreach (var image in item.GetImages(type))
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{
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if (!image.IsLocalFile)
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{
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deletedImages.Add(image);
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continue;
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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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deleted = true;
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}
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catch (FileNotFoundException)
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{
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}
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}
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item.RemoveImages(deletedImages);
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if (deleted)
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{
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item.ValidateImages(new DirectoryService(_fileSystem));
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}
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}
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public bool MergeImages(BaseItem item, IReadOnlyList<LocalImageInfo> images)
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{
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var changed = false;
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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)
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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 if (!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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else
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{
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var existing = item.GetImageInfo(type, 0);
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if (existing != null)
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{
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if (existing.IsLocalFile && !File.Exists(existing.Path))
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{
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item.RemoveImage(existing);
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changed = true;
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}
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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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var hasScreenshots = item as IHasScreenshots;
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if (hasScreenshots != null)
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{
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if (UpdateMultiImages(item, images, ImageType.Screenshot))
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{
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changed = true;
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}
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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.HasValue && i.Width.Value < 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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response.EnsureSuccessStatusCode();
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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 ex)
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{
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// Sometimes providers send back bad url's. Just move to the next image
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if (ex.StatusCode.HasValue
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&& (ex.StatusCode.Value == HttpStatusCode.NotFound || ex.StatusCode.Value == HttpStatusCode.Forbidden))
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{
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continue;
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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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if (!item.IsFileProtocol)
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{
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return true;
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}
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if (item is IItemByName && item is 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)
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{
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var path = string.Join('|', urls.Take(1));
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item.SetImage(
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new ItemImageInfo
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{
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Path = path,
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Type = imageType
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},
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newIndex);
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}
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private async Task DownloadBackdrops(BaseItem item, ImageType imageType, int limit, IRemoteImageProvider provider, RefreshResult result, IEnumerable<RemoteImageInfo> images, int minWidth, CancellationToken cancellationToken)
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{
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foreach (var image in images.Where(i => i.Type == imageType))
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{
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if (item.GetImages(imageType).Count() >= limit)
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{
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break;
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}
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if (image.Width.HasValue && image.Width.Value < minWidth)
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{
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continue;
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}
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var url = image.Url;
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if (EnableImageStub(item))
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{
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SaveImageStub(item, imageType, new[] { url });
|
|
result.UpdateType |= ItemUpdateType.ImageUpdate;
|
|
continue;
|
|
}
|
|
|
|
try
|
|
{
|
|
using var response = await provider.GetImageResponse(url, cancellationToken).ConfigureAwait(false);
|
|
|
|
// If there's already an image of the same size, skip it
|
|
if (response.Content.Headers.ContentLength.HasValue)
|
|
{
|
|
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 = result.UpdateType | ItemUpdateType.ImageUpdate;
|
|
}
|
|
catch (HttpRequestException ex)
|
|
{
|
|
// Sometimes providers send back bad urls. Just move onto the next image
|
|
if (ex.StatusCode.HasValue
|
|
&& (ex.StatusCode.Value == HttpStatusCode.NotFound || ex.StatusCode.Value == HttpStatusCode.Forbidden))
|
|
{
|
|
continue;
|
|
}
|
|
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|