2 // System.Security.Policy.GacMembershipCondition.cs
5 // Sebastien Pouliot <sebastien@ximian.com>
7 // Copyright (C) 2004-2005 Novell, Inc (http://www.novell.com)
9 // Permission is hereby granted, free of charge, to any person obtaining
10 // a copy of this software and associated documentation files (the
11 // "Software"), to deal in the Software without restriction, including
12 // without limitation the rights to use, copy, modify, merge, publish,
13 // distribute, sublicense, and/or sell copies of the Software, and to
14 // permit persons to whom the Software is furnished to do so, subject to
15 // the following conditions:
17 // The above copyright notice and this permission notice shall be
18 // included in all copies or substantial portions of the Software.
20 // THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
21 // EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
22 // MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
23 // NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
24 // LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
25 // OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
26 // WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
29 using System
.Collections
;
30 using System
.Security
.Permissions
;
31 using System
.Runtime
.InteropServices
;
33 namespace System
.Security
.Policy
{
37 public sealed class GacMembershipCondition
: IMembershipCondition
, IConstantMembershipCondition
{
39 private readonly int version
= 1;
41 public GacMembershipCondition ()
45 public bool Check (Evidence evidence
)
50 // true only if Gac is in host-supplied evidences
51 IEnumerator e
= evidence
.GetHostEnumerator ();
52 while (e
.MoveNext ()) {
53 if (e
.Current
is GacInstalled
)
59 public IMembershipCondition
Copy ()
61 return new GacMembershipCondition ();
64 public override bool Equals (object o
)
68 return (o
is GacMembershipCondition
);
71 public void FromXml (SecurityElement e
)
76 public void FromXml (SecurityElement e
, PolicyLevel level
)
78 MembershipConditionHelper
.CheckSecurityElement (e
, "e", version
, version
);
79 // PolicyLevel isn't used as there's no need to resolve NamedPermissionSet references
82 public override int GetHashCode ()
84 return 0; // always the same
87 // LAMESPEC: "Gac" is documented - but Fx 2.0 beta 1 returns "GAC"
88 public override string ToString ()
93 public SecurityElement
ToXml ()
98 public SecurityElement
ToXml (PolicyLevel level
)
100 // PolicyLevel isn't used as there's no need to resolve NamedPermissionSet references
101 SecurityElement se
= MembershipConditionHelper
.Element (typeof (GacMembershipCondition
), version
);