//
// PublisherMembershipCondition.cs: Publisher Membership Condition
//
// 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.Collections;
using System.Security.Cryptography.X509Certificates;
using System.Runtime.InteropServices;
using Mono.Security.Cryptography;
namespace System.Security.Policy{
[Serializable]
[ComVisible (true)]
public sealed class PublisherMembershipCondition : IConstantMembershipCondition, IMembershipCondition {
private readonly int version = 1;
private X509Certificate x509;
// so System.Activator.CreateInstance can create an instance...
internal PublisherMembershipCondition ()
{
}
public PublisherMembershipCondition (X509Certificate certificate)
{
if (certificate == null)
throw new ArgumentNullException ("certificate");
// needed to match MS implementation
if (certificate.GetHashCode () == 0) {
throw new ArgumentException ("certificate");
}
x509 = certificate;
}
public X509Certificate Certificate {
get { return x509; }
set {
if (value == null)
throw new ArgumentNullException ("value");
x509 = value;
}
}
public bool Check (Evidence evidence)
{
if (evidence == null)
return false;
IEnumerator e = evidence.GetHostEnumerator ();
while (e.MoveNext ()) {
if (e.Current is Publisher) {
if (x509.Equals ((e.Current as Publisher).Certificate))
return true;
}
}
return false;
}
public IMembershipCondition Copy ()
{
return new PublisherMembershipCondition (x509);
}
public override bool Equals (object o)
{
PublisherMembershipCondition pmc = (o as PublisherMembershipCondition);
if (pmc == null)
return false;
return x509.Equals (pmc.Certificate);
}
public void FromXml (SecurityElement e)
{
FromXml (e, null);
}
public void FromXml (SecurityElement e, PolicyLevel level)
{
MembershipConditionHelper.CheckSecurityElement (e, "e", version, version);
string cert = e.Attribute ("X509Certificate");
if (cert != null) {
byte[] rawcert = CryptoConvert.FromHex (cert);
x509 = new X509Certificate (rawcert);
}
// PolicyLevel isn't used as there's no need to resolve NamedPermissionSet references
}
public override int GetHashCode ()
{
return x509.GetHashCode ();
}
public override string ToString ()
{
return "Publisher - " + x509.GetPublicKeyString ();
}
public SecurityElement ToXml ()
{
return ToXml (null);
}
public SecurityElement ToXml (PolicyLevel level)
{
// PolicyLevel isn't used as there's no need to resolve NamedPermissionSet references
SecurityElement se = MembershipConditionHelper.Element (typeof (PublisherMembershipCondition), version);
se.AddAttribute ("X509Certificate", x509.GetRawCertDataString ());
return se;
}
}
}
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