a8f48a6e9d
* Flattening OPDS Structure # Changed - Flattened OPDS structure to reduce user taps. * Fixing format * Fixing book series titles * Optimized file size to use pre-calculated data to avoid an I/O touch. * Fixes #1898 by aligning all content headers to the correct MIME types * Remove dead code * Fixed a bug with continue point where it fails on chapters or volumes tagged with a range --------- Co-authored-by: Robbie Davis <robbie@therobbiedavis.com>
59 lines
2 KiB
C#
59 lines
2 KiB
C#
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 API.Entities;
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using Microsoft.AspNetCore.StaticFiles;
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using MimeTypes;
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namespace API.Services;
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public interface IDownloadService
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{
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Tuple<string, string, string> GetFirstFileDownload(IEnumerable<MangaFile> files);
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string GetContentTypeFromFile(string filepath);
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}
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public class DownloadService : IDownloadService
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{
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private readonly FileExtensionContentTypeProvider _fileTypeProvider = new FileExtensionContentTypeProvider();
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public DownloadService() { }
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/// <summary>
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/// Downloads the first file in the file enumerable for download
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/// </summary>
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/// <param name="files"></param>
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/// <returns></returns>
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public Tuple<string, string, string> GetFirstFileDownload(IEnumerable<MangaFile> files)
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{
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var firstFile = files.Select(c => c.FilePath).First();
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return Tuple.Create(firstFile, GetContentTypeFromFile(firstFile), Path.GetFileName(firstFile));
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}
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public string GetContentTypeFromFile(string filepath)
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{
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// Figures out what the content type should be based on the file name.
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if (!_fileTypeProvider.TryGetContentType(filepath, out var contentType))
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{
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contentType = Path.GetExtension(filepath).ToLowerInvariant() switch
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{
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".cbz" => "application/x-cbz",
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".cbr" => "application/x-cbr",
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".cb7" => "application/x-cb7",
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".cbt" => "application/x-cbt",
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".epub" => "application/epub+zip",
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".7z" => "application/x-7z-compressed",
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".7zip" => "application/x-7z-compressed",
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".rar" => "application/vnd.rar",
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".zip" => "application/zip",
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".tar.gz" => "application/gzip",
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".pdf" => "application/pdf",
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_ => MimeTypeMap.GetMimeType(contentType)
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};
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}
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return contentType!;
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}
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}
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