gecko-dev/extensions/manticore/core/MIMEService.cs

49 строки
1.8 KiB
C#

namespace Silverstone.Manticore.Core
{
using System;
using Microsoft.Win32;
/// <summary>
/// Summary description for MIMEService.
/// </summary>
public class MIMEService
{
/// <summary>
/// Retrieves the extension associated with the specified content type
/// by looking up the type in the Windows Registry.
/// </summary>
/// <param name="aMIMEType">content-type to retrieve extension for</param>
/// <returns>string containing the extension (".foo") associated with the type</returns>
public static string GetExtensionForMIMEType(string aMIMEType)
{
RegistryKey clsRoot = Registry.ClassesRoot;
string extFromMIMEDBKey = "MIME\\Database\\Content Type\\" + aMIMEType;
RegistryKey extensionKey = clsRoot.OpenSubKey(extFromMIMEDBKey);
return extensionKey.GetValue("Extension") as String;
}
/// <summary>
/// Retrieves the pretty user-readable description of the type by
/// looking up the type in the Windows Registry. If no data is found,
/// the extension is capitalized and appended with "file", e.g.
/// "ZAP file"
/// </summary>
/// <param name="aMIMEType">content-type to retrieve description for</param>
/// <returns>string containing pretty user-readable description of type</returns>
public static string GetDescriptionForMIMEType(string aMIMEType)
{
RegistryKey clsRoot = Registry.ClassesRoot;
string extension = GetExtensionForMIMEType(aMIMEType);
RegistryKey handlerKey = clsRoot.OpenSubKey(extension);
string handler = handlerKey.GetValue("") as String;
RegistryKey descriptionKey = clsRoot.OpenSubKey(handler);
string description = descriptionKey.GetValue("") as String;
if (description == "")
description = extension.Substring(1,extension.Length-1).ToUpper() + " file";
return description;
}
}
}