| | | 1 | | using System; |
| | | 2 | | using System.IO; |
| | | 3 | | using System.Threading; |
| | | 4 | | using System.Threading.Tasks; |
| | | 5 | | using System.Xml; |
| | | 6 | | using System.Xml.Linq; |
| | | 7 | | using MediaBrowser.Controller.Entities; |
| | | 8 | | using MediaBrowser.Controller.Providers; |
| | | 9 | | using MediaBrowser.Model.IO; |
| | | 10 | | using Microsoft.Extensions.Logging; |
| | | 11 | | |
| | | 12 | | namespace MediaBrowser.Providers.Books.ComicInfo; |
| | | 13 | | |
| | | 14 | | /// <summary> |
| | | 15 | | /// Handles metadata for comics which is saved as an XML document. This XML document is not part |
| | | 16 | | /// of the comic itself but an external file. |
| | | 17 | | /// </summary> |
| | | 18 | | public class ExternalComicInfoProvider : IComicProvider |
| | | 19 | | { |
| | | 20 | | private readonly IFileSystem _fileSystem; |
| | | 21 | | private readonly ILogger<ExternalComicInfoProvider> _logger; |
| | | 22 | | |
| | | 23 | | /// <summary> |
| | | 24 | | /// Initializes a new instance of the <see cref="ExternalComicInfoProvider"/> class. |
| | | 25 | | /// </summary> |
| | | 26 | | /// <param name="fileSystem">Instance of the <see cref="IFileSystem"/> interface.</param> |
| | | 27 | | /// <param name="logger">Instance of the <see cref="ILogger{ExternalComicInfoProvider}"/> interface.</param> |
| | | 28 | | public ExternalComicInfoProvider(IFileSystem fileSystem, ILogger<ExternalComicInfoProvider> logger) |
| | | 29 | | { |
| | 0 | 30 | | _logger = logger; |
| | 0 | 31 | | _fileSystem = fileSystem; |
| | 0 | 32 | | } |
| | | 33 | | |
| | | 34 | | /// <inheritdoc /> |
| | | 35 | | public async ValueTask<MetadataResult<Book>> ReadMetadata(ItemInfo info, IDirectoryService directoryService, Cancell |
| | | 36 | | { |
| | 0 | 37 | | var comicInfoXml = await LoadXml(info, cancellationToken).ConfigureAwait(false); |
| | | 38 | | |
| | 0 | 39 | | if (comicInfoXml is null) |
| | | 40 | | { |
| | 0 | 41 | | _logger.LogInformation("Could not load ComicInfo metadata for {Path} from XML file.", info.Path); |
| | 0 | 42 | | return new MetadataResult<Book> { HasMetadata = false }; |
| | | 43 | | } |
| | | 44 | | |
| | 0 | 45 | | var book = ComicInfoReader.ReadComicBookMetadata(comicInfoXml); |
| | | 46 | | |
| | 0 | 47 | | if (book is null) |
| | | 48 | | { |
| | 0 | 49 | | return new MetadataResult<Book> { HasMetadata = false }; |
| | | 50 | | } |
| | | 51 | | |
| | 0 | 52 | | var metadataResult = new MetadataResult<Book> { Item = book, HasMetadata = true }; |
| | | 53 | | |
| | 0 | 54 | | ComicInfoReader.ReadPeopleMetadata(comicInfoXml, metadataResult); |
| | 0 | 55 | | ComicInfoReader.ReadCultureInfoInto(comicInfoXml, "ComicInfo/LanguageISO", cultureInfo => metadataResult.ResultL |
| | | 56 | | |
| | 0 | 57 | | return metadataResult; |
| | 0 | 58 | | } |
| | | 59 | | |
| | | 60 | | /// <inheritdoc /> |
| | | 61 | | public bool HasItemChanged(BaseItem item) |
| | | 62 | | { |
| | 0 | 63 | | var file = GetXmlFilePath(item.Path); |
| | | 64 | | |
| | 0 | 65 | | return file.Exists && _fileSystem.GetLastWriteTimeUtc(file) > item.DateLastSaved; |
| | | 66 | | } |
| | | 67 | | |
| | | 68 | | private async Task<XDocument?> LoadXml(ItemInfo info, CancellationToken cancellationToken) |
| | | 69 | | { |
| | 0 | 70 | | var path = GetXmlFilePath(info.Path).FullName; |
| | | 71 | | |
| | 0 | 72 | | if (path is null) |
| | | 73 | | { |
| | 0 | 74 | | return null; |
| | | 75 | | } |
| | | 76 | | |
| | | 77 | | try |
| | | 78 | | { |
| | 0 | 79 | | using var reader = XmlReader.Create(path, new XmlReaderSettings { Async = true }); |
| | 0 | 80 | | var comicInfoXml = XDocument.LoadAsync(reader, LoadOptions.None, cancellationToken); |
| | | 81 | | |
| | 0 | 82 | | return await comicInfoXml.ConfigureAwait(false); |
| | | 83 | | } |
| | 0 | 84 | | catch (Exception e) |
| | | 85 | | { |
| | 0 | 86 | | _logger.LogInformation(e, "Could not load external XML from {Path}. This could mean there is no separate Com |
| | 0 | 87 | | return null; |
| | | 88 | | } |
| | 0 | 89 | | } |
| | | 90 | | |
| | | 91 | | private FileSystemMetadata GetXmlFilePath(string path) |
| | | 92 | | { |
| | 0 | 93 | | var fileInfo = _fileSystem.GetFileSystemInfo(path); |
| | 0 | 94 | | var directoryInfo = fileInfo.IsDirectory ? fileInfo : _fileSystem.GetDirectoryInfo(Path.GetDirectoryName(path)!) |
| | 0 | 95 | | var file = _fileSystem.GetFileInfo(Path.Combine(directoryInfo.FullName, Path.GetFileNameWithoutExtension(path) + |
| | | 96 | | |
| | 0 | 97 | | return file.Exists ? file : _fileSystem.GetFileInfo(Path.Combine(directoryInfo.FullName, ComicInfoReader.ComicRa |
| | | 98 | | } |
| | | 99 | | } |