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//
// System.Security.Policy.FirstMatchCodeGroup
//
// Author(s):
// Jackson Harper (Jackson@LatitudeGeo.com)
//
// (C) 2002 Jackson Harper, All rights reserved.
// 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.Runtime.InteropServices;
namespace System.Security.Policy {
[Serializable]
[ComVisible (true)]
public sealed class FirstMatchCodeGroup : CodeGroup {
public FirstMatchCodeGroup (IMembershipCondition membershipCondition, PolicyStatement policy)
: base (membershipCondition, policy)
{
}
// for PolicyLevel (to avoid validation duplication)
internal FirstMatchCodeGroup (SecurityElement e, PolicyLevel level)
: base (e, level)
{
}
//
// Public Properties
//
public override string MergeLogic {
get { return "First Match"; }
}
//
// Public Methods
//
public override CodeGroup Copy ()
{
FirstMatchCodeGroup copy = CopyNoChildren ();
foreach (CodeGroup child in Children) {
copy.AddChild (child.Copy ()); // deep copy
}
return copy;
}
public override PolicyStatement Resolve (Evidence evidence)
{
if (evidence == null)
throw new ArgumentNullException ("evidence");
if (!MembershipCondition.Check (evidence))
return null;
foreach (CodeGroup child in Children) {
PolicyStatement policy = child.Resolve (evidence);
if (policy != null) {
return policy; // first match
}
}
return this.PolicyStatement; // default
}
public override CodeGroup ResolveMatchingCodeGroups (Evidence evidence)
{
if (evidence == null)
throw new ArgumentNullException ("evidence");
if (!MembershipCondition.Check (evidence))
return null;
foreach (CodeGroup child in Children) {
if (child.Resolve (evidence) != null) {
return child.Copy (); // first match
// FIXME copy childrens ?
}
}
return this.CopyNoChildren (); // default
}
//
// Private Methods
//
private FirstMatchCodeGroup CopyNoChildren ()
{
FirstMatchCodeGroup copy = new FirstMatchCodeGroup (MembershipCondition, PolicyStatement);
copy.Name = Name;
copy.Description = Description;
return copy;
}
}
}
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