//
// System.Configuration.ConfigurationPermission.cs
//
// Author:
// Chris Toshok <toshok@ximian.com>
//
//
// Copyright (C) 2004 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.
//
#if NET_2_0
using System.Security;
using System.Security.Permissions;
namespace System.Configuration{
[Serializable]
public sealed class ConfigurationPermission : CodeAccessPermission, IUnrestrictedPermission
{
public ConfigurationPermission (PermissionState state)
{
unrestricted = (state == PermissionState.Unrestricted);
}
public override IPermission Copy ()
{
return new ConfigurationPermission (unrestricted ? PermissionState.Unrestricted : PermissionState.None);
}
public override void FromXml (SecurityElement securityElement)
{
if (securityElement == null)
throw new ArgumentNullException ("securityElement");
// LAMESPEC: it says to throw an ArgumentNullException in this case
if (securityElement.Tag != "IPermission")
throw new ArgumentException ("securityElement");
string unrestricted = securityElement.Attribute ("Unrestricted");
if (unrestricted != null) {
this.unrestricted = (String.Compare (unrestricted, "true", StringComparison.InvariantCultureIgnoreCase) == 0);
}
}
public override IPermission Intersect (IPermission target)
{
if (target == null)
return null;
ConfigurationPermission p = target as ConfigurationPermission;
if (p == null)
throw new ArgumentException ("target");
return new ConfigurationPermission (unrestricted && p.IsUnrestricted() ? PermissionState.Unrestricted : PermissionState.None);
}
public override IPermission Union (IPermission target)
{
if (target == null)
return Copy ();
ConfigurationPermission p = target as ConfigurationPermission;
if (p == null)
throw new ArgumentException ("target");
return new ConfigurationPermission (unrestricted || p.IsUnrestricted() ? PermissionState.Unrestricted : PermissionState.None);
}
public override bool IsSubsetOf (IPermission target)
{
if (target == null)
return !unrestricted;
ConfigurationPermission p = target as ConfigurationPermission;
if (p == null)
throw new ArgumentException ("target");
if (unrestricted)
return p.IsUnrestricted();
else
return true;
}
public bool IsUnrestricted ()
{
return unrestricted;
}
public override SecurityElement ToXml ()
{
SecurityElement root = new SecurityElement ("IPermission");
root.AddAttribute ("class", this.GetType().AssemblyQualifiedName);
root.AddAttribute ("version", "1");
if (unrestricted) {
root.AddAttribute ("Unrestricted", "true");
}
return root;
}
bool unrestricted;
}
}
#endif
|