//
// Publisher.cs: Publisher Policy using X509 Certificate
//
// Author:
//	Sebastien Pouliot  <sebastien@ximian.com>
//
// (C) 2002, 2003 Motus Technologies Inc. (http://www.motus.com)
// Copyright (C) 2004-2005 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.Security.Cryptography.X509Certificates;
using System.Security.Permissions;
using System.Runtime.InteropServices;

namespace System.Security.Policy {

	[Serializable]
#if NET_2_0
	[ComVisible (true)]
#endif
	public sealed class Publisher : IIdentityPermissionFactory, IBuiltInEvidence {
	
		private X509Certificate m_cert;

		public Publisher (X509Certificate cert) 
		{
			if (cert == null)
				throw new ArgumentNullException ("cert");
#if NET_2_0
			if (cert.GetHashCode () == 0)
				throw new ArgumentException ("cert");
#endif
			m_cert = cert;
		}

		public X509Certificate Certificate { 
			get {
				if (m_cert.GetHashCode () == 0) {
#if NET_2_0
					throw new ArgumentException ("m_cert");
#else
					throw new NullReferenceException ("m_cert");
#endif	
				}
				return m_cert; 
			}
		}

		public object Copy () 
		{
			return new Publisher (m_cert);
		}

		public IPermission CreateIdentityPermission (Evidence evidence) 
		{
			return new PublisherIdentityPermission (m_cert);
		}

		public override bool Equals (object o) 
		{
			Publisher p = (o as Publisher);
			if (p == null)
				throw new ArgumentException ("o", Locale.GetText ("not a Publisher instance."));
			return m_cert.Equals (p.Certificate);
		}
	
		public override int GetHashCode () 
		{
			return m_cert.GetHashCode ();
		}

		public override string ToString ()
		{
			SecurityElement se = new SecurityElement ("System.Security.Policy.Publisher");
			se.AddAttribute ("version", "1");
			SecurityElement cert = new SecurityElement ("X509v3Certificate");
			string data = m_cert.GetRawCertDataString ();
			if (data != null)
				cert.Text = data;
			se.AddChild (cert);
			return se.ToString ();
		}

		// interface IBuiltInEvidence

		int IBuiltInEvidence.GetRequiredSize (bool verbose) 
		{
			return (verbose ? 3 : 1) + m_cert.GetRawCertData ().Length;
		}

		[MonoTODO ("IBuiltInEvidence")]
		int IBuiltInEvidence.InitFromBuffer (char [] buffer, int position) 
		{
			return 0;
		}

		[MonoTODO ("IBuiltInEvidence")]
		int IBuiltInEvidence.OutputToBuffer (char [] buffer, int position, bool verbose) 
		{
			return 0;
		}
	}
}