Util/Mail/MIMEParser/MIMETypes.cs

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/******************************************************************************
	Copyright 2003-2004 Hamid Qureshi and Unruled Boy 
	OpenPOP.Net is free software; you can redistribute it and/or modify
	it under the terms of the Lesser GNU General Public License as published by
	the Free Software Foundation; either version 2 of the License, or
	(at your option) any later version.

	OpenPOP.Net is distributed in the hope that it will be useful,
	but WITHOUT ANY WARRANTY; without even the implied warranty of
	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
	Lesser GNU General Public License for more details.

	You should have received a copy of the Lesser GNU General Public License
	along with this program; if not, write to the Free Software
	Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
/*******************************************************************************/

/*
*Name:			OpenPOP.MIMETypes
*Function:		MIME Types
*Author:		Unruled Boy
*Created:		2004/3/29
*Modified:		2004/3/30 09:10 GMT+8
*Description:
*Changes:		
*				2004/3/30 09:10 GMT+8 by Unruled Boy
*					1.Adding full list of MIME Types
*/
using System;
using System.IO;
using System.Collections;

namespace Util.Mail.MIMEParser
{
	/// <summary>
	/// MIMETypes
	/// </summary>
	public class MIMETypes
	{
		public const string MIMEType_MSTNEF="application/ms-tnef";
		private const string Content_Transfer_Encoding_Tag="Content-Transfer-Encoding";
		private static Hashtable _MIMETypeList=null;


		public static string GetContentTransferEncoding(string strBuffer, int pos)
		{
			int begin=0,end=0;
			begin=strBuffer.ToLower().IndexOf(Content_Transfer_Encoding_Tag.ToLower(),pos);
			if(begin!=-1)
			{
				end=strBuffer.ToLower().IndexOf("\r\n".ToLower(),begin+1);
				return strBuffer.Substring(begin+Content_Transfer_Encoding_Tag.Length+1,end-begin-Content_Transfer_Encoding_Tag.Length).Trim();
			}
			else
				return "";
		}

		public static bool IsMSTNEF(string strContentType)
		{
			if(strContentType!=null & strContentType!="")
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