mirror of
https://github.com/Kareadita/Kavita.git
synced 2025-11-04 03:27:05 -05:00
603 lines
27 KiB
C#
603 lines
27 KiB
C#
using System;
|
|
using System.Collections.Generic;
|
|
using System.Diagnostics;
|
|
using System.IO;
|
|
using System.IO.Compression;
|
|
using System.Linq;
|
|
using System.Threading.Tasks;
|
|
using System.Xml.Linq;
|
|
using System.Xml.Serialization;
|
|
using API.Archive;
|
|
using API.Data.Metadata;
|
|
using API.Entities.Enums;
|
|
using API.Extensions;
|
|
using API.Services.Tasks;
|
|
using Kavita.Common;
|
|
using Microsoft.Extensions.Logging;
|
|
using SharpCompress.Archives;
|
|
using SharpCompress.Common;
|
|
using YamlDotNet.Core;
|
|
|
|
namespace API.Services;
|
|
|
|
#nullable enable
|
|
|
|
public interface IArchiveService
|
|
{
|
|
void ExtractArchive(string archivePath, string extractPath);
|
|
int GetNumberOfPagesFromArchive(string archivePath);
|
|
string GetCoverImage(string archivePath, string fileName, string outputDirectory, EncodeFormat format, CoverImageSize size = CoverImageSize.Default);
|
|
bool IsValidArchive(string archivePath);
|
|
ComicInfo? GetComicInfo(string archivePath);
|
|
ArchiveLibrary CanOpen(string archivePath);
|
|
bool ArchiveNeedsFlattening(ZipArchive archive);
|
|
/// <summary>
|
|
/// Creates a zip file form the listed files and outputs to the temp folder. This will combine into one zip of multiple zips.
|
|
/// </summary>
|
|
/// <param name="files">List of files to be zipped up. Should be full file paths.</param>
|
|
/// <param name="tempFolder">Temp folder name to use for preparing the files. Will be created and deleted</param>
|
|
/// <returns>Path to the temp zip</returns>
|
|
/// <exception cref="KavitaException"></exception>
|
|
string CreateZipForDownload(IEnumerable<string> files, string tempFolder);
|
|
/// <summary>
|
|
/// Creates a zip file form the listed files and outputs to the temp folder. This will extract each archive and combine them into one zip.
|
|
/// </summary>
|
|
/// <param name="files">List of files to be zipped up. Should be full file paths.</param>
|
|
/// <param name="tempFolder">Temp folder name to use for preparing the files. Will be created and deleted</param>
|
|
/// <returns>Path to the temp zip</returns>
|
|
/// <exception cref="KavitaException"></exception>
|
|
string CreateZipFromFoldersForDownload(IList<string> files, string tempFolder, Func<Tuple<string, float>, Task> progressCallback);
|
|
}
|
|
|
|
/// <summary>
|
|
/// Responsible for manipulating Archive files. Used by <see cref="CacheService"/> and <see cref="ScannerService"/>
|
|
/// </summary>
|
|
// ReSharper disable once ClassWithVirtualMembersNeverInherited.Global
|
|
public class ArchiveService : IArchiveService
|
|
{
|
|
private readonly ILogger<ArchiveService> _logger;
|
|
private readonly IDirectoryService _directoryService;
|
|
private readonly IImageService _imageService;
|
|
private readonly IMediaErrorService _mediaErrorService;
|
|
private const string ComicInfoFilename = "ComicInfo.xml";
|
|
|
|
public ArchiveService(ILogger<ArchiveService> logger, IDirectoryService directoryService,
|
|
IImageService imageService, IMediaErrorService mediaErrorService)
|
|
{
|
|
_logger = logger;
|
|
_directoryService = directoryService;
|
|
_imageService = imageService;
|
|
_mediaErrorService = mediaErrorService;
|
|
}
|
|
|
|
/// <summary>
|
|
/// Checks if a File can be opened. Requires up to 2 opens of the filestream.
|
|
/// </summary>
|
|
/// <param name="archivePath"></param>
|
|
/// <returns></returns>
|
|
public virtual ArchiveLibrary CanOpen(string archivePath)
|
|
{
|
|
if (string.IsNullOrEmpty(archivePath) || !(File.Exists(archivePath) && Tasks.Scanner.Parser.Parser.IsArchive(archivePath) || Tasks.Scanner.Parser.Parser.IsEpub(archivePath))) return ArchiveLibrary.NotSupported;
|
|
|
|
var ext = _directoryService.FileSystem.Path.GetExtension(archivePath).ToUpper();
|
|
if (ext.Equals(".CBR") || ext.Equals(".RAR")) return ArchiveLibrary.SharpCompress;
|
|
|
|
try
|
|
{
|
|
using var a2 = ZipFile.OpenRead(archivePath);
|
|
return ArchiveLibrary.Default;
|
|
}
|
|
catch (Exception)
|
|
{
|
|
try
|
|
{
|
|
using var a1 = ArchiveFactory.Open(archivePath);
|
|
return ArchiveLibrary.SharpCompress;
|
|
}
|
|
catch (Exception)
|
|
{
|
|
return ArchiveLibrary.NotSupported;
|
|
}
|
|
}
|
|
}
|
|
|
|
public int GetNumberOfPagesFromArchive(string archivePath)
|
|
{
|
|
if (!IsValidArchive(archivePath))
|
|
{
|
|
_logger.LogError("Archive {ArchivePath} could not be found", archivePath);
|
|
return 0;
|
|
}
|
|
|
|
try
|
|
{
|
|
var libraryHandler = CanOpen(archivePath);
|
|
switch (libraryHandler)
|
|
{
|
|
case ArchiveLibrary.Default:
|
|
{
|
|
using var archive = ZipFile.OpenRead(archivePath);
|
|
return archive.Entries.Count(e => !Tasks.Scanner.Parser.Parser.HasBlacklistedFolderInPath(e.FullName) && Tasks.Scanner.Parser.Parser.IsImage(e.FullName));
|
|
}
|
|
case ArchiveLibrary.SharpCompress:
|
|
{
|
|
using var archive = ArchiveFactory.Open(archivePath);
|
|
return archive.Entries.Count(entry => !entry.IsDirectory &&
|
|
!Tasks.Scanner.Parser.Parser.HasBlacklistedFolderInPath(Path.GetDirectoryName(entry.Key) ?? string.Empty)
|
|
&& Tasks.Scanner.Parser.Parser.IsImage(entry.Key));
|
|
}
|
|
case ArchiveLibrary.NotSupported:
|
|
_logger.LogWarning("[GetNumberOfPagesFromArchive] This archive cannot be read: {ArchivePath}. Defaulting to 0 pages", archivePath);
|
|
_mediaErrorService.ReportMediaIssue(archivePath, MediaErrorProducer.ArchiveService, "File format not supported", string.Empty);
|
|
return 0;
|
|
default:
|
|
_logger.LogWarning("[GetNumberOfPagesFromArchive] There was an exception when reading archive stream: {ArchivePath}. Defaulting to 0 pages", archivePath);
|
|
_mediaErrorService.ReportMediaIssue(archivePath, MediaErrorProducer.ArchiveService, "File format not supported", string.Empty);
|
|
return 0;
|
|
}
|
|
}
|
|
catch (Exception ex)
|
|
{
|
|
_logger.LogWarning(ex, "[GetNumberOfPagesFromArchive] There was an exception when reading archive stream: {ArchivePath}. Defaulting to 0 pages", archivePath);
|
|
_mediaErrorService.ReportMediaIssue(archivePath, MediaErrorProducer.ArchiveService,
|
|
"This archive cannot be read or not supported", ex);
|
|
return 0;
|
|
}
|
|
}
|
|
|
|
/// <summary>
|
|
/// Finds the first instance of a folder entry and returns it
|
|
/// </summary>
|
|
/// <param name="entryFullNames"></param>
|
|
/// <returns>Entry name of match, null if no match</returns>
|
|
public static string? FindFolderEntry(IEnumerable<string> entryFullNames)
|
|
{
|
|
var result = entryFullNames
|
|
.Where(path => !(Path.EndsInDirectorySeparator(path) || Tasks.Scanner.Parser.Parser.HasBlacklistedFolderInPath(path) || path.StartsWith(Tasks.Scanner.Parser.Parser.MacOsMetadataFileStartsWith)))
|
|
.OrderByNatural(Path.GetFileNameWithoutExtension)
|
|
.FirstOrDefault(Tasks.Scanner.Parser.Parser.IsCoverImage);
|
|
|
|
return string.IsNullOrEmpty(result) ? null : result;
|
|
}
|
|
|
|
/// <summary>
|
|
/// Returns first entry that is an image and is not in a blacklisted folder path. Uses <see cref="EnumerableExtensions.OrderByNatural"/> for ordering files
|
|
/// </summary>
|
|
/// <param name="entryFullNames"></param>
|
|
/// <param name="archiveName"></param>
|
|
/// <returns>Entry name of match, null if no match</returns>
|
|
public static string? FirstFileEntry(IEnumerable<string> entryFullNames, string archiveName)
|
|
{
|
|
// First check if there are any files that are not in a nested folder before just comparing by filename. This is needed
|
|
// because NaturalSortComparer does not work with paths and doesn't seem 001.jpg as before chapter 1/001.jpg.
|
|
var fullNames = entryFullNames
|
|
.Where(path => !(Path.EndsInDirectorySeparator(path) || Tasks.Scanner.Parser.Parser.HasBlacklistedFolderInPath(path) || path.StartsWith(Tasks.Scanner.Parser.Parser.MacOsMetadataFileStartsWith)) && Tasks.Scanner.Parser.Parser.IsImage(path))
|
|
.OrderByNatural(c => c.GetFullPathWithoutExtension())
|
|
.ToList();
|
|
if (fullNames.Count == 0) return null;
|
|
|
|
var nonNestedFile = fullNames.Where(entry => (Path.GetDirectoryName(entry) ?? string.Empty).Equals(archiveName))
|
|
.OrderByNatural(c => c.GetFullPathWithoutExtension())
|
|
.FirstOrDefault();
|
|
|
|
if (!string.IsNullOrEmpty(nonNestedFile)) return nonNestedFile;
|
|
|
|
// Check the first folder and sort within that to see if we can find a file, else fallback to first file with basic sort.
|
|
// Get first folder, then sort within that
|
|
var firstDirectoryFile = fullNames.OrderByNatural(Path.GetDirectoryName!).FirstOrDefault();
|
|
if (!string.IsNullOrEmpty(firstDirectoryFile))
|
|
{
|
|
var firstDirectory = Path.GetDirectoryName(firstDirectoryFile);
|
|
if (!string.IsNullOrEmpty(firstDirectory))
|
|
{
|
|
var firstDirectoryResult = fullNames.Where(f => firstDirectory.Equals(Path.GetDirectoryName(f)))
|
|
.OrderByNatural(Path.GetFileNameWithoutExtension)
|
|
.FirstOrDefault();
|
|
|
|
if (!string.IsNullOrEmpty(firstDirectoryResult)) return firstDirectoryResult;
|
|
}
|
|
}
|
|
|
|
var result = fullNames
|
|
.OrderByNatural(Path.GetFileNameWithoutExtension)
|
|
.FirstOrDefault();
|
|
|
|
return string.IsNullOrEmpty(result) ? null : result;
|
|
}
|
|
|
|
|
|
/// <summary>
|
|
/// Generates byte array of cover image.
|
|
/// Given a path to a compressed file <see cref="Tasks.Scanner.Parser.Parser.ArchiveFileExtensions"/>, will ensure the first image (respects directory structure) is returned unless
|
|
/// a folder/cover.(image extension) exists in the the compressed file (if duplicate, the first is chosen)
|
|
///
|
|
/// This skips over any __MACOSX folder/file iteration.
|
|
/// </summary>
|
|
/// <remarks>This always creates a thumbnail</remarks>
|
|
/// <param name="archivePath"></param>
|
|
/// <param name="fileName">File name to use based on context of entity.</param>
|
|
/// <param name="outputDirectory">Where to output the file, defaults to covers directory</param>
|
|
/// <param name="format">When saving the file, use encoding</param>
|
|
/// <returns></returns>
|
|
public string GetCoverImage(string archivePath, string fileName, string outputDirectory, EncodeFormat format, CoverImageSize size = CoverImageSize.Default)
|
|
{
|
|
if (string.IsNullOrEmpty(archivePath) || !IsValidArchive(archivePath)) return string.Empty;
|
|
try
|
|
{
|
|
var libraryHandler = CanOpen(archivePath);
|
|
switch (libraryHandler)
|
|
{
|
|
case ArchiveLibrary.Default:
|
|
{
|
|
using var archive = ZipFile.OpenRead(archivePath);
|
|
|
|
var entryName = FindCoverImageFilename(archivePath, archive.Entries.Select(e => e.FullName));
|
|
var entry = archive.Entries.Single(e => e.FullName == entryName);
|
|
|
|
using var stream = entry.Open();
|
|
return _imageService.WriteCoverThumbnail(stream, fileName, outputDirectory, format, size);
|
|
}
|
|
case ArchiveLibrary.SharpCompress:
|
|
{
|
|
using var archive = ArchiveFactory.Open(archivePath);
|
|
var entryNames = archive.Entries.Where(archiveEntry => !archiveEntry.IsDirectory).Select(e => e.Key).ToList();
|
|
|
|
var entryName = FindCoverImageFilename(archivePath, entryNames);
|
|
var entry = archive.Entries.Single(e => e.Key == entryName);
|
|
|
|
using var stream = entry.OpenEntryStream();
|
|
return _imageService.WriteCoverThumbnail(stream, fileName, outputDirectory, format, size);
|
|
}
|
|
case ArchiveLibrary.NotSupported:
|
|
_logger.LogWarning("[GetCoverImage] This archive cannot be read: {ArchivePath}. Defaulting to no cover image", archivePath);
|
|
return string.Empty;
|
|
default:
|
|
_logger.LogWarning("[GetCoverImage] There was an exception when reading archive stream: {ArchivePath}. Defaulting to no cover image", archivePath);
|
|
return string.Empty;
|
|
}
|
|
}
|
|
catch (Exception ex)
|
|
{
|
|
_logger.LogWarning(ex, "[GetCoverImage] There was an exception when reading archive stream: {ArchivePath}. Defaulting to no cover image", archivePath);
|
|
_mediaErrorService.ReportMediaIssue(archivePath, MediaErrorProducer.ArchiveService,
|
|
"This archive cannot be read or not supported", ex); // TODO: Localize this
|
|
}
|
|
|
|
return string.Empty;
|
|
}
|
|
|
|
/// <summary>
|
|
/// Given a list of image paths (assume within an archive), find the filename that corresponds to the cover
|
|
/// </summary>
|
|
/// <param name="archivePath"></param>
|
|
/// <param name="entryNames"></param>
|
|
/// <returns></returns>
|
|
public static string? FindCoverImageFilename(string archivePath, IEnumerable<string> entryNames)
|
|
{
|
|
var entryName = FindFolderEntry(entryNames) ?? FirstFileEntry(entryNames, Path.GetFileName(archivePath));
|
|
return entryName;
|
|
}
|
|
|
|
/// <summary>
|
|
/// Given an archive stream, will assess whether directory needs to be flattened so that the extracted archive files are directly
|
|
/// under extract path and not nested in subfolders. See <see cref="DirectoryService"/> Flatten method.
|
|
/// </summary>
|
|
/// <param name="archive">An opened archive stream</param>
|
|
/// <returns></returns>
|
|
public bool ArchiveNeedsFlattening(ZipArchive archive)
|
|
{
|
|
// Sometimes ZipArchive will list the directory and others it will just keep it in the FullName
|
|
return archive.Entries.Count > 0 &&
|
|
!Path.HasExtension(archive.Entries[0].FullName) ||
|
|
archive.Entries.Any(e => e.FullName.Contains(Path.AltDirectorySeparatorChar) && !Tasks.Scanner.Parser.Parser.HasBlacklistedFolderInPath(e.FullName));
|
|
}
|
|
|
|
/// <summary>
|
|
/// Creates a zip file form the listed files and outputs to the temp folder.
|
|
/// </summary>
|
|
/// <param name="files">List of files to be zipped up. Should be full file paths.</param>
|
|
/// <param name="tempFolder">Temp folder name to use for preparing the files. Will be created and deleted</param>
|
|
/// <returns>Path to the temp zip</returns>
|
|
/// <exception cref="KavitaException"></exception>
|
|
public string CreateZipForDownload(IEnumerable<string> files, string tempFolder)
|
|
{
|
|
var dateString = DateTime.UtcNow.ToShortDateString().Replace("/", "_");
|
|
|
|
var tempLocation = Path.Join(_directoryService.TempDirectory, $"{tempFolder}_{dateString}");
|
|
var potentialExistingFile = _directoryService.FileSystem.FileInfo.New(Path.Join(_directoryService.TempDirectory, $"kavita_{tempFolder}_{dateString}.zip"));
|
|
if (potentialExistingFile.Exists)
|
|
{
|
|
// A previous download exists, just return it immediately
|
|
return potentialExistingFile.FullName;
|
|
}
|
|
|
|
_directoryService.ExistOrCreate(tempLocation);
|
|
|
|
if (!_directoryService.CopyFilesToDirectory(files, tempLocation))
|
|
{
|
|
throw new KavitaException("bad-copy-files-for-download");
|
|
}
|
|
|
|
var zipPath = Path.Join(_directoryService.TempDirectory, $"kavita_{tempFolder}_{dateString}.zip");
|
|
try
|
|
{
|
|
ZipFile.CreateFromDirectory(tempLocation, zipPath);
|
|
// Remove the folder as we have the zip
|
|
_directoryService.ClearAndDeleteDirectory(tempLocation);
|
|
}
|
|
catch (AggregateException ex)
|
|
{
|
|
_logger.LogError(ex, "There was an issue creating temp archive");
|
|
throw new KavitaException("generic-create-temp-archive");
|
|
}
|
|
|
|
return zipPath;
|
|
}
|
|
|
|
public string CreateZipFromFoldersForDownload(IList<string> files, string tempFolder, Func<Tuple<string, float>, Task> progressCallback)
|
|
{
|
|
var dateString = DateTime.UtcNow.ToShortDateString().Replace("/", "_");
|
|
|
|
var potentialExistingFile = _directoryService.FileSystem.FileInfo.New(Path.Join(_directoryService.TempDirectory, $"kavita_{tempFolder}_{dateString}.cbz"));
|
|
if (potentialExistingFile.Exists)
|
|
{
|
|
// A previous download exists, just return it immediately
|
|
return potentialExistingFile.FullName;
|
|
}
|
|
|
|
// Extract all the files to a temp directory and create zip on that
|
|
var tempLocation = Path.Join(_directoryService.TempDirectory, $"{tempFolder}_{dateString}");
|
|
var totalFiles = files.Count + 1;
|
|
var count = 1f;
|
|
try
|
|
{
|
|
_directoryService.ExistOrCreate(tempLocation);
|
|
foreach (var path in files)
|
|
{
|
|
var tempPath = Path.Join(tempLocation, _directoryService.FileSystem.Path.GetFileNameWithoutExtension(_directoryService.FileSystem.FileInfo.New(path).Name));
|
|
|
|
// Image series need different handling
|
|
if (Tasks.Scanner.Parser.Parser.IsImage(path))
|
|
{
|
|
var parentDirectory = _directoryService.FileSystem.DirectoryInfo.New(path).Parent?.Name;
|
|
tempPath = Path.Join(tempLocation, parentDirectory ?? _directoryService.FileSystem.FileInfo.New(path).Name);
|
|
}
|
|
|
|
if (Tasks.Scanner.Parser.Parser.IsArchive(path))
|
|
{
|
|
// Archives don't need to be put into a subdirectory of the same name
|
|
tempPath = _directoryService.GetParentDirectoryName(tempPath);
|
|
}
|
|
|
|
progressCallback(Tuple.Create(_directoryService.FileSystem.FileInfo.New(path).Name, (1.0f * totalFiles) / count));
|
|
|
|
_directoryService.CopyFileToDirectory(path, tempPath);
|
|
count++;
|
|
}
|
|
}
|
|
catch
|
|
{
|
|
throw new KavitaException("bad-copy-files-for-download");
|
|
}
|
|
|
|
var zipPath = Path.Join(_directoryService.TempDirectory, $"kavita_{tempFolder}_{dateString}.cbz");
|
|
try
|
|
{
|
|
ZipFile.CreateFromDirectory(tempLocation, zipPath);
|
|
// Remove the folder as we have the zip
|
|
_directoryService.ClearAndDeleteDirectory(tempLocation);
|
|
}
|
|
catch (AggregateException ex)
|
|
{
|
|
_logger.LogError(ex, "There was an issue creating temp archive");
|
|
throw new KavitaException("generic-create-temp-archive");
|
|
}
|
|
|
|
return zipPath;
|
|
}
|
|
|
|
|
|
/// <summary>
|
|
/// Test if the archive path exists and an archive
|
|
/// </summary>
|
|
/// <param name="archivePath"></param>
|
|
/// <returns></returns>
|
|
public bool IsValidArchive(string archivePath)
|
|
{
|
|
if (!File.Exists(archivePath))
|
|
{
|
|
_logger.LogWarning("Archive {ArchivePath} could not be found", archivePath);
|
|
return false;
|
|
}
|
|
|
|
if (Tasks.Scanner.Parser.Parser.IsArchive(archivePath)) return true;
|
|
|
|
_logger.LogWarning("Archive {ArchivePath} is not a valid archive", archivePath);
|
|
return false;
|
|
}
|
|
|
|
private static bool IsComicInfoArchiveEntry(string? fullName, string name)
|
|
{
|
|
if (fullName == null) return false;
|
|
return !Tasks.Scanner.Parser.Parser.HasBlacklistedFolderInPath(fullName)
|
|
&& name.EndsWith(ComicInfoFilename, StringComparison.OrdinalIgnoreCase)
|
|
&& !name.StartsWith(Tasks.Scanner.Parser.Parser.MacOsMetadataFileStartsWith);
|
|
}
|
|
|
|
/// <summary>
|
|
/// This can be null if nothing is found or any errors occur during access
|
|
/// </summary>
|
|
/// <param name="archivePath"></param>
|
|
/// <returns></returns>
|
|
public ComicInfo? GetComicInfo(string archivePath)
|
|
{
|
|
if (!IsValidArchive(archivePath)) return null;
|
|
|
|
try
|
|
{
|
|
if (!File.Exists(archivePath)) return null;
|
|
|
|
var libraryHandler = CanOpen(archivePath);
|
|
switch (libraryHandler)
|
|
{
|
|
case ArchiveLibrary.Default:
|
|
{
|
|
using var archive = ZipFile.OpenRead(archivePath);
|
|
|
|
var entry = archive.Entries.FirstOrDefault(x => (x.FullName ?? x.Name) == ComicInfoFilename) ??
|
|
archive.Entries.FirstOrDefault(x => IsComicInfoArchiveEntry(x.FullName, x.Name));
|
|
if (entry != null)
|
|
{
|
|
using var stream = entry.Open();
|
|
return Deserialize(stream);
|
|
}
|
|
|
|
break;
|
|
}
|
|
case ArchiveLibrary.SharpCompress:
|
|
{
|
|
using var archive = ArchiveFactory.Open(archivePath);
|
|
var entry = archive.Entries.FirstOrDefault(entry => entry.Key == ComicInfoFilename) ??
|
|
archive.Entries.FirstOrDefault(entry =>
|
|
IsComicInfoArchiveEntry(Path.GetDirectoryName(entry.Key), entry.Key));
|
|
|
|
if (entry != null)
|
|
{
|
|
using var stream = entry.OpenEntryStream();
|
|
var info = Deserialize(stream);
|
|
return info;
|
|
}
|
|
|
|
break;
|
|
}
|
|
case ArchiveLibrary.NotSupported:
|
|
_logger.LogWarning("[GetComicInfo] This archive cannot be read: {ArchivePath}", archivePath);
|
|
return null;
|
|
default:
|
|
_logger.LogWarning(
|
|
"[GetComicInfo] There was an exception when reading archive stream: {ArchivePath}",
|
|
archivePath);
|
|
return null;
|
|
}
|
|
}
|
|
catch (Exception ex)
|
|
{
|
|
_logger.LogWarning(ex, "[GetComicInfo] There was an exception when reading archive stream: {Filepath}", archivePath);
|
|
_mediaErrorService.ReportMediaIssue(archivePath, MediaErrorProducer.ArchiveService,
|
|
"This archive cannot be read or not supported", ex);
|
|
}
|
|
|
|
return null;
|
|
}
|
|
|
|
/// <summary>
|
|
/// Strips out empty tags before deserializing
|
|
/// </summary>
|
|
/// <param name="stream"></param>
|
|
/// <returns></returns>
|
|
private static ComicInfo? Deserialize(Stream stream)
|
|
{
|
|
var comicInfoXml = XDocument.Load(stream);
|
|
comicInfoXml.Descendants()
|
|
.Where(e => e.IsEmpty || string.IsNullOrWhiteSpace(e.Value))
|
|
.Remove();
|
|
|
|
var serializer = new XmlSerializer(typeof(ComicInfo));
|
|
using var reader = comicInfoXml.Root?.CreateReader();
|
|
if (reader == null) return null;
|
|
|
|
var info = (ComicInfo?) serializer.Deserialize(reader);
|
|
ComicInfo.CleanComicInfo(info);
|
|
return info;
|
|
|
|
}
|
|
|
|
|
|
private void ExtractArchiveEntities(IEnumerable<IArchiveEntry> entries, string extractPath)
|
|
{
|
|
_directoryService.ExistOrCreate(extractPath);
|
|
// TODO: Look into a Parallel.ForEach
|
|
foreach (var entry in entries)
|
|
{
|
|
entry.WriteToDirectory(extractPath, new ExtractionOptions()
|
|
{
|
|
ExtractFullPath = true, // Don't flatten, let the flattener ensure correct order of nested folders
|
|
Overwrite = false
|
|
});
|
|
}
|
|
}
|
|
|
|
private void ExtractArchiveEntries(ZipArchive archive, string extractPath)
|
|
{
|
|
var needsFlattening = ArchiveNeedsFlattening(archive);
|
|
if (!archive.HasFiles() && !needsFlattening) return;
|
|
|
|
archive.ExtractToDirectory(extractPath, true);
|
|
if (!needsFlattening) return;
|
|
|
|
_logger.LogDebug("Extracted archive is nested in root folder, flattening...");
|
|
_directoryService.Flatten(extractPath);
|
|
}
|
|
|
|
/// <summary>
|
|
/// Extracts an archive to a temp cache directory. Returns path to new directory. If temp cache directory already exists,
|
|
/// will return that without performing an extraction. Returns empty string if there are any invalidations which would
|
|
/// prevent operations to perform correctly (missing archivePath file, empty archive, etc).
|
|
/// </summary>
|
|
/// <param name="archivePath">A valid file to an archive file.</param>
|
|
/// <param name="extractPath">Path to extract to</param>
|
|
/// <returns></returns>
|
|
public void ExtractArchive(string archivePath, string extractPath)
|
|
{
|
|
if (!IsValidArchive(archivePath)) return;
|
|
|
|
if (_directoryService.FileSystem.Directory.Exists(extractPath)) return;
|
|
|
|
if (!_directoryService.FileSystem.File.Exists(archivePath))
|
|
{
|
|
_logger.LogError("{Archive} does not exist on disk", archivePath);
|
|
throw new KavitaException($"{archivePath} does not exist on disk");
|
|
}
|
|
|
|
var sw = Stopwatch.StartNew();
|
|
|
|
try
|
|
{
|
|
var libraryHandler = CanOpen(archivePath);
|
|
switch (libraryHandler)
|
|
{
|
|
case ArchiveLibrary.Default:
|
|
{
|
|
using var archive = ZipFile.OpenRead(archivePath);
|
|
ExtractArchiveEntries(archive, extractPath);
|
|
break;
|
|
}
|
|
case ArchiveLibrary.SharpCompress:
|
|
{
|
|
using var archive = ArchiveFactory.Open(archivePath);
|
|
ExtractArchiveEntities(archive.Entries.Where(entry => !entry.IsDirectory
|
|
&& !Tasks.Scanner.Parser.Parser.HasBlacklistedFolderInPath(Path.GetDirectoryName(entry.Key) ?? string.Empty)
|
|
&& Tasks.Scanner.Parser.Parser.IsImage(entry.Key)), extractPath);
|
|
break;
|
|
}
|
|
case ArchiveLibrary.NotSupported:
|
|
_logger.LogWarning("[ExtractArchive] This archive cannot be read: {ArchivePath}", archivePath);
|
|
return;
|
|
default:
|
|
_logger.LogWarning("[ExtractArchive] There was an exception when reading archive stream: {ArchivePath}", archivePath);
|
|
return;
|
|
}
|
|
|
|
}
|
|
catch (Exception ex)
|
|
{
|
|
_logger.LogWarning(ex, "[ExtractArchive] There was a problem extracting {ArchivePath} to {ExtractPath}",archivePath, extractPath);
|
|
_mediaErrorService.ReportMediaIssue(archivePath, MediaErrorProducer.ArchiveService,
|
|
"This archive cannot be read or not supported", ex);
|
|
throw new KavitaException(
|
|
$"There was an error when extracting {archivePath}. Check the file exists, has read permissions or the server OS can support all path characters.");
|
|
}
|
|
_logger.LogDebug("Extracted archive to {ExtractPath} in {ElapsedMilliseconds} milliseconds", extractPath, sw.ElapsedMilliseconds);
|
|
}
|
|
}
|