/******************************************************************************
* The MIT License
* Copyright (c) 2003 Novell Inc.  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.
* 
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* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER 
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* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
* SOFTWARE.
*******************************************************************************/
//
// Novell.Directory.Ldap.Rfc2251.RfcBindResponse.cs
//
// Author:
//   Sunil Kumar (Sunilk@novell.com)
//
// (C) 2003 Novell, Inc (http://www.novell.com)
//

using System;
using Novell.Directory.Ldap;
using Novell.Directory.Ldap.Asn1;

namespace Novell.Directory.Ldap.Rfc2251
{
	
	/// <summary> Represents and Ldap Bind Response.
	/// 
	/// <pre>
	/// BindResponse ::= [APPLICATION 1] SEQUENCE {
	/// 
	/// COMPONENTS OF LdapResult,
	/// serverSaslCreds    [7] OCTET STRING OPTIONAL }
	/// </pre>
	/// </summary>
	public class RfcBindResponse:Asn1Sequence, RfcResponse
	{
		/// <summary> Returns the OPTIONAL serverSaslCreds of a BindResponse if it exists
		/// otherwise null.
		/// </summary>
		virtual public Asn1OctetString ServerSaslCreds
		{
			get
			{
				if (size() == 5)
					return (Asn1OctetString) ((Asn1Tagged) get_Renamed(4)).taggedValue();
				
				if (size() == 4)
				{
					// could be referral or serverSaslCreds
					Asn1Object obj = get_Renamed(3);
					if (obj is Asn1Tagged)
						return (Asn1OctetString) ((Asn1Tagged) obj).taggedValue();
				}
				
				return null;
			}
			
		}
		
		//*************************************************************************
		// Constructors for BindResponse
		//*************************************************************************
		
		/// <summary> The only time a client will create a BindResponse is when it is
		/// decoding it from an InputStream
		/// 
		/// Note: If serverSaslCreds is included in the BindResponse, it does not
		/// need to be decoded since it is already an OCTET STRING.
		/// </summary>
		[CLSCompliantAttribute(false)]
		public RfcBindResponse(Asn1Decoder dec, System.IO.Stream in_Renamed, int len):base(dec, in_Renamed, len)
		{
			
			// Decode optional referral from Asn1OctetString to Referral.
			if (size() > 3)
			{
				Asn1Tagged obj = (Asn1Tagged) get_Renamed(3);
				Asn1Identifier id = obj.getIdentifier();
				if (id.Tag == RfcLdapResult.REFERRAL)
				{
					sbyte[] content = ((Asn1OctetString) obj.taggedValue()).byteValue();
					System.IO.MemoryStream bais = new System.IO.MemoryStream(SupportClass.ToByteArray(content));
					set_Renamed(3, new RfcReferral(dec, bais, content.Length));
				}
			}
		}
		
		//*************************************************************************
		// Accessors
		//*************************************************************************
		
		/// <summary> </summary>
		public Asn1Enumerated getResultCode()
		{
			return (Asn1Enumerated) get_Renamed(0);
		}
		
		/// <summary> </summary>
		public RfcLdapDN getMatchedDN()
		{
			return new RfcLdapDN(((Asn1OctetString) get_Renamed(1)).byteValue());
		}
		
		/// <summary> </summary>
		public RfcLdapString getErrorMessage()
		{
			return new RfcLdapString(((Asn1OctetString) get_Renamed(2)).byteValue());
		}
		
		/// <summary> </summary>
		public RfcReferral getReferral()
		{
			if (size() > 3)
			{
				Asn1Object obj = get_Renamed(3);
				if (obj is RfcReferral)
					return (RfcReferral) obj;
			}
			return null;
		}
		
		/// <summary> Override getIdentifier to return an application-wide id.</summary>
		public override Asn1Identifier getIdentifier()
		{
			return new Asn1Identifier(Asn1Identifier.APPLICATION, true, LdapMessage.BIND_RESPONSE);
		}
	}
}