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