//
// System.Net.NtlmClient
//
// Authors:
//	Sebastien Pouliot (spouliot@motus.com)
//	Gonzalo Paniagua Javier (gonzalo@ximian.com)
//
// (C) 2003 Motus Technologies. All rights reserved.
// (c) 2003 Novell, Inc. (http://www.novell.com)
//

//
// Permission is hereby granted, free of charge, to any person obtaining
// a copy of this software and associated documentation files (the
// "Software"), to deal in the Software without restriction, including
// without limitation the rights to use, copy, modify, merge, publish,
// distribute, sublicense, and/or sell copies of the Software, and to
// permit persons to whom the Software is furnished to do so, subject to
// the following conditions:
// 
// The above copyright notice and this permission notice shall be
// included in all copies or substantial portions of the Software.
// 
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
// EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
// NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
// LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
// OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
// WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
//

using System;
using System.Reflection;

namespace System.Net
{
	class NtlmClient : IAuthenticationModule
	{
		static Type ntlmAuthType;
		IAuthenticationModule authObject;

		static NtlmClient ()
		{
			Assembly ass = Assembly.Load (Consts.AssemblyMono_Security);
			if (ass != null)
				ntlmAuthType = ass.GetType ("Mono.Http.NtlmClient", false);
		}
		
		public NtlmClient ()
		{
			if (ntlmAuthType != null)
				authObject = (IAuthenticationModule) Activator.CreateInstance (ntlmAuthType);
		}
	
		public Authorization Authenticate (string challenge, WebRequest webRequest, ICredentials credentials) 
		{
			if (authObject == null)
				return null;

			return authObject.Authenticate (challenge, webRequest, credentials);
		}

		public Authorization PreAuthenticate (WebRequest webRequest, ICredentials credentials) 
		{
			return null;
		}
	
		public string AuthenticationType { 
			get { return "NTLM"; }
		}
	
		public bool CanPreAuthenticate { 
			get { return false; }
		}
	}
}

