repo creation with initial code after cloning public repo
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#pragma warning disable CS1591
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using System;
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using System.Collections.Frozen;
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using System.Collections.Generic;
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using System.Diagnostics.CodeAnalysis;
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using System.IO;
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using System.Linq;
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using System.Net.Mime;
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using Jellyfin.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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///
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/// <remarks>
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/// For more information on MIME types:
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/// <list type="bullet">
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/// <item>http://en.wikipedia.org/wiki/Internet_media_type</item>
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/// <item>https://developer.mozilla.org/en-US/docs/Web/HTTP/Basics_of_HTTP/MIME_types/Common_types</item>
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/// <item>http://www.iana.org/assignments/media-types/media-types.xhtml</item>
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/// </list>
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/// </remarks>
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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 FrozenSet<string> _videoFileExtensions = new[]
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{
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".3gp",
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".asf",
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".avi",
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".divx",
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".dvr-ms",
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".f4v",
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".flv",
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".img",
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".iso",
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".m2t",
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".m2ts",
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".m2v",
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".m4v",
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".mk3d",
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".mkv",
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".mov",
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".mp4",
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".mpg",
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".mpeg",
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".mts",
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".ogg",
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".ogm",
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".ogv",
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".rec",
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".ts",
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".rmvb",
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".vob",
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".webm",
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".wmv",
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".wtv",
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}.ToFrozenSet(StringComparer.OrdinalIgnoreCase);
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/// <summary>
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/// Used for extensions not in <see cref="Model.MimeTypes"/> or to override them.
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/// </summary>
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private static readonly FrozenDictionary<string, string> _mimeTypeLookup = new KeyValuePair<string, string>[]
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{
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// Type application
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new(".azw3", "application/vnd.amazon.ebook"),
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new(".cb7", "application/x-cb7"),
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new(".cba", "application/x-cba"),
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new(".cbr", "application/vnd.comicbook-rar"),
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new(".cbt", "application/x-cbt"),
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new(".cbz", "application/vnd.comicbook+zip"),
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// Type image
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new(".tbn", "image/jpeg"),
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// Type text
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new(".ass", "text/x-ssa"),
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new(".ssa", "text/x-ssa"),
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new(".edl", "text/plain"),
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new(".html", "text/html; charset=UTF-8"),
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new(".htm", "text/html; charset=UTF-8"),
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// Type video
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new(".mpegts", "video/mp2t"),
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// Type audio
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new(".aac", "audio/aac"),
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new(".ac3", "audio/ac3"),
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new(".ape", "audio/x-ape"),
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new(".dsf", "audio/dsf"),
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new(".dsp", "audio/dsp"),
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new(".flac", "audio/flac"),
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new(".m4b", "audio/mp4"),
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new(".mp3", "audio/mpeg"),
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new(".vorbis", "audio/vorbis"),
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new(".webma", "audio/webm"),
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new(".wv", "audio/x-wavpack"),
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new(".xsp", "audio/xsp"),
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}.ToFrozenDictionary(pair => pair.Key, pair => pair.Value, StringComparer.OrdinalIgnoreCase);
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private static readonly FrozenDictionary<string, string> _extensionLookup = new KeyValuePair<string, string>[]
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{
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// Type application
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new("application/vnd.comicbook-rar", ".cbr"),
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new("application/vnd.comicbook+zip", ".cbz"),
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new("application/x-cb7", ".cb7"),
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new("application/x-cba", ".cba"),
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new("application/x-cbr", ".cbr"),
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new("application/x-cbt", ".cbt"),
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new("application/x-cbz", ".cbz"),
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new("application/x-javascript", ".js"),
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new("application/xml", ".xml"),
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new("application/x-mpegURL", ".m3u8"),
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// Type audio
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new("audio/aac", ".aac"),
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new("audio/ac3", ".ac3"),
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new("audio/dsf", ".dsf"),
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new("audio/dsp", ".dsp"),
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new("audio/flac", ".flac"),
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new("audio/m4b", ".m4b"),
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new("audio/vorbis", ".vorbis"),
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new("audio/x-ape", ".ape"),
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new("audio/xsp", ".xsp"),
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new("audio/x-aac", ".aac"),
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new("audio/x-wavpack", ".wv"),
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// Type image
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new("image/jpeg", ".jpg"),
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new("image/tiff", ".tiff"),
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new("image/x-png", ".png"),
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new("image/x-icon", ".ico"),
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// Type text
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new("text/plain", ".txt"),
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new("text/rtf", ".rtf"),
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new("text/x-ssa", ".ssa"),
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// Type video
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new("video/vnd.mpeg.dash.mpd", ".mpd"),
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new("video/x-matroska", ".mkv"),
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}.ToFrozenDictionary(pair => pair.Key, pair => pair.Value, StringComparer.OrdinalIgnoreCase);
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public static string GetMimeType(string path) => GetMimeType(path, MediaTypeNames.Application.Octet);
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/// <summary>
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/// Gets the type of the MIME.
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/// </summary>
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/// <param name="filename">The filename to find the MIME type of.</param>
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/// <param name="defaultValue">The default value to return if no fitting MIME type is found.</param>
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/// <returns>The correct MIME type for the given filename, or <paramref name="defaultValue"/> if it wasn't found.</returns>
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[return: NotNullIfNotNull("defaultValue")]
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public static string? GetMimeType(string filename, string? defaultValue = null)
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{
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ArgumentException.ThrowIfNullOrEmpty(filename);
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var ext = Path.GetExtension(filename);
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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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if (Model.MimeTypes.TryGetMimeType(filename, out var mimeType))
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{
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return mimeType;
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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 string.Concat("video/", ext.AsSpan(1));
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}
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return defaultValue;
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}
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public static string? ToExtension(string mimeType)
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{
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ArgumentException.ThrowIfNullOrEmpty(mimeType);
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// handle text/html; charset=UTF-8
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mimeType = mimeType.AsSpan().LeftPart(';').ToString();
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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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var extension = Model.MimeTypes.GetMimeTypeExtensions(mimeType).FirstOrDefault();
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return string.IsNullOrEmpty(extension) ? null : "." + extension;
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}
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public static bool IsImage(ReadOnlySpan<char> mimeType)
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=> mimeType.StartsWith("image/", StringComparison.OrdinalIgnoreCase);
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}
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}
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