107 lines
3.0 KiB
C#
107 lines
3.0 KiB
C#
//
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// System.Security.Policy.GacMembershipCondition.cs
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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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// 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.Permissions;
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using System.Runtime.InteropServices;
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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 GacMembershipCondition : IMembershipCondition, IConstantMembershipCondition {
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private readonly int version = 1;
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public GacMembershipCondition ()
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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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// true only if Gac is in host-supplied evidences
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IEnumerator e = evidence.GetHostEnumerator ();
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while (e.MoveNext ()) {
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if (e.Current is GacInstalled)
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return true;
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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 GacMembershipCondition ();
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}
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public override bool Equals (object o)
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{
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if (o == null)
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return false;
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return (o is GacMembershipCondition);
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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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// 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 0; // always the same
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}
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// LAMESPEC: "Gac" is documented - but Fx 2.0 beta 1 returns "GAC"
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public override string ToString ()
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{
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return "GAC";
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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 (GacMembershipCondition), version);
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// nothing to add
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return se;
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}
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}
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}
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