139 lines
4.0 KiB
C#
139 lines
4.0 KiB
C#
//
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// PublisherMembershipCondition.cs: Publisher Membership Condition
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//
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// Author:
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// Sebastien Pouliot <sebastien@ximian.com>
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//
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// (C) 2002, 2003 Motus Technologies Inc. (http://www.motus.com)
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// Copyright (C) 2004-2005 Novell, Inc (http://www.novell.com)
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//
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// Permission is hereby granted, free of charge, to any person obtaining
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// a copy of this software and associated documentation files (the
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// "Software"), to deal in the Software without restriction, including
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// without limitation the rights to use, copy, modify, merge, publish,
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// distribute, sublicense, and/or sell copies of the Software, and to
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// permit persons to whom the Software is furnished to do so, subject to
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// the following conditions:
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//
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// The above copyright notice and this permission notice shall be
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// included in all copies or substantial portions of the Software.
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//
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// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
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// EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
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// NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
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// LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
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// OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
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// WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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//
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using System.Collections;
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using System.Security.Cryptography.X509Certificates;
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using System.Runtime.InteropServices;
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using Mono.Security.Cryptography;
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namespace System.Security.Policy {
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[Serializable]
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[ComVisible (true)]
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public sealed class PublisherMembershipCondition : IConstantMembershipCondition, IMembershipCondition {
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private readonly int version = 1;
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private X509Certificate x509;
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// so System.Activator.CreateInstance can create an instance...
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internal PublisherMembershipCondition ()
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{
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}
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public PublisherMembershipCondition (X509Certificate certificate)
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{
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if (certificate == null)
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throw new ArgumentNullException ("certificate");
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// needed to match MS implementation
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if (certificate.GetHashCode () == 0) {
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throw new ArgumentException ("certificate");
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}
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x509 = certificate;
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}
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public X509Certificate Certificate {
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get { return x509; }
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set {
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if (value == null)
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throw new ArgumentNullException ("value");
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x509 = value;
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}
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}
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public bool Check (Evidence evidence)
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{
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if (evidence == null)
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return false;
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IEnumerator e = evidence.GetHostEnumerator ();
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while (e.MoveNext ()) {
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if (e.Current is Publisher) {
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if (x509.Equals ((e.Current as Publisher).Certificate))
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return true;
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}
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}
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return false;
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}
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public IMembershipCondition Copy ()
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{
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return new PublisherMembershipCondition (x509);
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}
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public override bool Equals (object o)
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{
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PublisherMembershipCondition pmc = (o as PublisherMembershipCondition);
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if (pmc == null)
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return false;
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return x509.Equals (pmc.Certificate);
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}
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public void FromXml (SecurityElement e)
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{
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FromXml (e, null);
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}
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public void FromXml (SecurityElement e, PolicyLevel level)
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{
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MembershipConditionHelper.CheckSecurityElement (e, "e", version, version);
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string cert = e.Attribute ("X509Certificate");
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if (cert != null) {
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byte[] rawcert = CryptoConvert.FromHex (cert);
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x509 = new X509Certificate (rawcert);
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}
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// PolicyLevel isn't used as there's no need to resolve NamedPermissionSet references
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}
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public override int GetHashCode ()
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{
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return x509.GetHashCode ();
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}
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public override string ToString ()
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{
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return "Publisher - " + x509.GetPublicKeyString ();
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}
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public SecurityElement ToXml ()
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{
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return ToXml (null);
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}
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public SecurityElement ToXml (PolicyLevel level)
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{
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// PolicyLevel isn't used as there's no need to resolve NamedPermissionSet references
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SecurityElement se = MembershipConditionHelper.Element (typeof (PublisherMembershipCondition), version);
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se.AddAttribute ("X509Certificate", x509.GetRawCertDataString ());
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return se;
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}
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}
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}
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