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//
// System.Security.Policy.UnionCodeGroup.cs
//
// Authors
// Duncan Mak (duncan@ximian.com)
// Sebastien Pouliot <sebastien@ximian.com>
//
// (C) 2003 Ximian, Inc (http://www.ximian.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.Globalization;
using System.Security.Permissions;
using System.Runtime.InteropServices;
namespace System.Security.Policy {
[Serializable]
[ComVisible (true)]
public sealed class UnionCodeGroup : CodeGroup {
public UnionCodeGroup (IMembershipCondition membershipCondition, PolicyStatement policy)
: base (membershipCondition, policy)
{
}
// for PolicyLevel (to avoid validation duplication)
internal UnionCodeGroup (SecurityElement e, PolicyLevel level)
: base (e, level)
{
}
public override CodeGroup Copy ()
{
return Copy (true);
}
internal CodeGroup Copy (bool childs)
{
UnionCodeGroup copy = new UnionCodeGroup (MembershipCondition, PolicyStatement);
copy.Name = Name;
copy.Description = Description;
if (childs) {
foreach (CodeGroup child in Children) {
copy.AddChild (child.Copy ());
}
}
return copy;
}
public override PolicyStatement Resolve (Evidence evidence)
{
if (evidence == null)
throw new ArgumentNullException ("evidence");
if (!MembershipCondition.Check (evidence))
return null;
PermissionSet ps = this.PolicyStatement.PermissionSet.Copy ();
if (this.Children.Count > 0) {
foreach (CodeGroup child_cg in this.Children) {
PolicyStatement child_pst = child_cg.Resolve (evidence);
if (child_pst != null) {
ps = ps.Union (child_pst.PermissionSet);
}
}
}
PolicyStatement pst = this.PolicyStatement.Copy ();
pst.PermissionSet = ps;
return pst;
}
public override CodeGroup ResolveMatchingCodeGroups (Evidence evidence)
{
if (evidence == null)
throw new ArgumentNullException ("evidence");
if (!MembershipCondition.Check (evidence))
return null;
// Copy() would add the child (even if they didn't match)
CodeGroup match = Copy (false);
if (this.Children.Count > 0) {
foreach (CodeGroup cg in this.Children) {
CodeGroup child = cg.ResolveMatchingCodeGroups (evidence);
if (child != null)
match.AddChild (child);
}
}
return match;
}
public override string MergeLogic {
get { return "Union"; }
}
}
}
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