mirror of
https://github.com/jellyfin/jellyfin.git
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207 lines
6.3 KiB
C#
207 lines
6.3 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 MediaBrowser.Model.Extensions;
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namespace MediaBrowser.Model.Net
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{
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/// <summary>
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/// Class MimeTypes
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/// </summary>
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public static class MimeTypes
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{
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/// <summary>
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/// Any extension in this list is considered a video file
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/// </summary>
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private static readonly HashSet<string> _videoFileExtensions = new HashSet<string>(StringComparer.OrdinalIgnoreCase)
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{
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".mkv",
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".m2t",
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".m2ts",
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".img",
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".iso",
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".mk3d",
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".ts",
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".rmvb",
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".mov",
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".avi",
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".mpg",
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".mpeg",
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".wmv",
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".mp4",
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".divx",
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".dvr-ms",
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".wtv",
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".ogm",
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".ogv",
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".asf",
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".m4v",
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".flv",
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".f4v",
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".3gp",
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".webm",
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".mts",
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".m2v",
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".rec"
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};
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// http://en.wikipedia.org/wiki/Internet_media_type
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// Add more as needed
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private static readonly Dictionary<string, string> _mimeTypeLookup = new Dictionary<string, string>(StringComparer.OrdinalIgnoreCase)
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{
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// Type application
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{ ".cbz", "application/x-cbz" },
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{ ".cbr", "application/epub+zip" },
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{ ".eot", "application/vnd.ms-fontobject" },
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{ ".epub", "application/epub+zip" },
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{ ".js", "application/x-javascript" },
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{ ".json", "application/json" },
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{ ".map", "application/x-javascript" },
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{ ".pdf", "application/pdf" },
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{ ".ttml", "application/ttml+xml" },
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{ ".m3u8", "application/x-mpegURL" },
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{ ".mobi", "application/x-mobipocket-ebook" },
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{ ".xml", "application/xml" },
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// Type image
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{ ".jpg", "image/jpeg" },
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{ ".jpeg", "image/jpeg" },
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{ ".tbn", "image/jpeg" },
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{ ".png", "image/png" },
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{ ".gif", "image/gif" },
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{ ".tiff", "image/tiff" },
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{ ".webp", "image/webp" },
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{ ".ico", "image/vnd.microsoft.icon" },
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{ ".svg", "image/svg+xml" },
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{ ".svgz", "image/svg+xml" },
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// Type font
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{ ".ttf" , "font/ttf" },
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{ ".woff" , "font/woff" },
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// Type text
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{ ".ass", "text/x-ssa" },
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{ ".ssa", "text/x-ssa" },
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{ ".css", "text/css" },
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{ ".csv", "text/csv" },
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{ ".txt", "text/plain" },
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{ ".vtt", "text/vtt" },
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// Type video
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{ ".mpg", "video/mpeg" },
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{ ".ogv", "video/ogg" },
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{ ".mov", "video/quicktime" },
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{ ".webm", "video/webm" },
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{ ".mkv", "video/x-matroska" },
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{ ".wmv", "video/x-ms-wmv" },
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{ ".flv", "video/x-flv" },
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{ ".avi", "video/x-msvideo" },
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{ ".asf", "video/x-ms-asf" },
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{ ".m4v", "video/x-m4v" },
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{ ".m4s", "video/mp4" },
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{ ".3gp", "video/3gpp" },
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{ ".3g2", "video/3gpp2" },
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{ ".mpd", "video/vnd.mpeg.dash.mpd" },
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{ ".ts", "video/mp2t" },
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// Type audio
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{ ".mp3", "audio/mpeg" },
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{ ".m4a", "audio/mp4" },
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{ ".aac", "audio/mp4" },
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{ ".webma", "audio/webm" },
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{ ".wav", "audio/wav" },
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{ ".wma", "audio/x-ms-wma" },
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{ ".ogg", "audio/ogg" },
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{ ".oga", "audio/ogg" },
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{ ".opus", "audio/ogg" },
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{ ".ac3", "audio/ac3" },
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{ ".dsf", "audio/dsf" },
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{ ".m4b", "audio/m4b" },
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{ ".xsp", "audio/xsp" },
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{ ".dsp", "audio/dsp" },
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{ ".flac", "audio/flac" },
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};
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private static readonly Dictionary<string, string> _extensionLookup = CreateExtensionLookup();
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private static Dictionary<string, string> CreateExtensionLookup()
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{
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var dict = _mimeTypeLookup
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.GroupBy(i => i.Value)
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.ToDictionary(x => x.Key, x => x.First().Key, StringComparer.OrdinalIgnoreCase);
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dict["image/jpg"] = ".jpg";
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dict["image/x-png"] = ".png";
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dict["audio/x-aac"] = ".aac";
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return dict;
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}
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public static string GetMimeType(string path) => GetMimeType(path, true);
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/// <summary>
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/// Gets the type of the MIME.
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/// </summary>
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public static string GetMimeType(string path, bool enableStreamDefault)
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{
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if (string.IsNullOrEmpty(path))
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{
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throw new ArgumentNullException(nameof(path));
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}
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var ext = Path.GetExtension(path);
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if (_mimeTypeLookup.TryGetValue(ext, out string result))
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{
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return result;
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}
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// Catch-all for all video types that don't require specific mime types
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if (_videoFileExtensions.Contains(ext))
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{
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return "video/" + ext.Substring(1);
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}
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// Type text
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if (StringHelper.EqualsIgnoreCase(ext, ".html")
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|| StringHelper.EqualsIgnoreCase(ext, ".htm"))
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{
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return "text/html; charset=UTF-8";
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}
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if (StringHelper.EqualsIgnoreCase(ext, ".log")
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|| StringHelper.EqualsIgnoreCase(ext, ".srt"))
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{
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return "text/plain";
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}
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// Misc
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if (StringHelper.EqualsIgnoreCase(ext, ".dll"))
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{
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return "application/octet-stream";
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}
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return enableStreamDefault ? "application/octet-stream" : null;
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}
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public static string ToExtension(string mimeType)
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{
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if (string.IsNullOrEmpty(mimeType))
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{
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throw new ArgumentNullException(nameof(mimeType));
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}
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// handle text/html; charset=UTF-8
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mimeType = mimeType.Split(';')[0];
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if (_extensionLookup.TryGetValue(mimeType, out string result))
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{
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return result;
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}
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return null;
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}
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}
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}
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