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jellyfin/MediaBrowser.Providers/Manager/ItemImageProvider.cs

647 lines
25 KiB

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