/* Transport Security Layer (TLS)
 * Copyright (c) 2003-2004 Carlos Guzman Alvarez
 * 
 * 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.Text;
using System.Security.Cryptography.X509Certificates;
using Mono.Security.Cryptography;
using X509 = Mono.Security.X509;

namespace Mono.Security.Protocol.Tls
{
	internal sealed class TlsClientSettings
	{
		#region Fields

		private string						targetHost;
		private X509CertificateCollection	certificates;
		private SecurityCompressionType		compressionMethod;
		private X509Certificate				clientCertificate;
		private RSAManaged					certificateRSA;
	
		#endregion

		#region Properties

		public string TargetHost
		{
			get { return this.targetHost; }
			set { this.targetHost = value; }
		}

		public X509CertificateCollection Certificates
		{
			get { return this.certificates; }
			set { this.certificates = value; }
		}

		public SecurityCompressionType CompressionMethod
		{
			get { return this.compressionMethod; }
			set 
			{ 
				if (value != SecurityCompressionType.None)
				{
					throw new NotSupportedException("Specified compression method is not supported");
				}
				this.compressionMethod = value; 
			}
		}
		
		public X509Certificate ClientCertificate
		{
			get { return this.clientCertificate; }
			set 
			{ 
				this.clientCertificate = value; 
				this.UpdateCertificateRSA();
			}
		}

		public RSAManaged CertificateRSA
		{
			get { return this.certificateRSA; }
		}

		#endregion

		#region Constructors

		public TlsClientSettings()
		{
			this.compressionMethod	= SecurityCompressionType.None;
			this.certificates		= new X509CertificateCollection();
			this.targetHost			= String.Empty;
		}

		#endregion

		#region Methods

		public void UpdateCertificateRSA()
		{
			if (this.clientCertificate == null)
			{
				this.certificateRSA = null;
			}
			else
			{
				X509.X509Certificate cert = new X509.X509Certificate(this.clientCertificate.GetRawCertData());

				this.certificateRSA = new RSAManaged(
					cert.RSA.KeySize);

				this.certificateRSA.ImportParameters(
					cert.RSA.ExportParameters(false));
			}
		}

		#endregion
	}
}