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//
// System.Security.Policy.ZoneMembershipCondition.cs
//
// Authors:
// Duncan Mak (duncan@ximian.com)
// Sebastien Pouliot <sebastien@ximian.com>
//
// (C) 2003, Ximian Inc.
// 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.Collections;
using System.Globalization;
using System.Runtime.InteropServices;
namespace System.Security.Policy {
[Serializable]
[ComVisible (true)]
public sealed class ZoneMembershipCondition : IMembershipCondition, IConstantMembershipCondition {
private readonly int version = 1;
private SecurityZone zone;
// so System.Activator.CreateInstance can create an instance...
internal ZoneMembershipCondition ()
{
}
public ZoneMembershipCondition (SecurityZone zone)
{
// we need the validations
SecurityZone = zone;
}
public SecurityZone SecurityZone {
get { return zone; }
set {
if (!Enum.IsDefined (typeof (SecurityZone), value)) {
throw new ArgumentException (Locale.GetText (
"invalid zone"));
}
if (value == SecurityZone.NoZone) {
throw new ArgumentException (Locale.GetText (
"NoZone isn't valid for membership condition"));
}
zone = value;
}
}
public bool Check (Evidence evidence)
{
if (evidence == null)
return false;
IEnumerator e = evidence.GetHostEnumerator ();
while (e.MoveNext ()) {
Zone z = (e.Current as Zone);
if (z != null) {
if (z.SecurityZone == zone)
return true;
}
}
return false;
}
public IMembershipCondition Copy ()
{
return new ZoneMembershipCondition (zone);
}
public override bool Equals (object o)
{
ZoneMembershipCondition zmc = (o as ZoneMembershipCondition);
if (zmc == null)
return false;
return (zmc.SecurityZone == zone);
}
public void FromXml (SecurityElement e)
{
FromXml (e, null);
}
public void FromXml (SecurityElement e, PolicyLevel level)
{
MembershipConditionHelper.CheckSecurityElement (e, "e", version, version);
string z = e.Attribute ("Zone");
if (z != null) {
zone = (SecurityZone) Enum.Parse (typeof (SecurityZone), z);
}
}
public override int GetHashCode ()
{
return zone.GetHashCode ();
}
public override string ToString ()
{
return "Zone - " + zone;
}
public SecurityElement ToXml ()
{
return ToXml (null);
}
public SecurityElement ToXml (PolicyLevel level)
{
// PolicyLevel isn't used as there's no need to resolve NamedPermissionSet references
SecurityElement se = MembershipConditionHelper.Element (typeof (ZoneMembershipCondition), version);
se.AddAttribute ("Zone", zone.ToString ());
return se;
}
}
}
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