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// Licensed to the .NET Foundation under one or more agreements.
// The .NET Foundation licenses this file to you under the MIT license.
// See the LICENSE file in the project root for more information.
//
//
//
// Zone is an IIdentity representing Internet/Intranet/MyComputer etc.
//
namespace System.Security.Policy
{
using System.Security.Util;
using ZoneIdentityPermission = System.Security.Permissions.ZoneIdentityPermission;
using System.Runtime.CompilerServices;
using System.Runtime.InteropServices;
using System.Runtime.Versioning;
using System.Runtime.Serialization;
using System.Diagnostics;
using System.Diagnostics.Contracts;
[Serializable]
[System.Runtime.InteropServices.ComVisible(true)]
public sealed class Zone : EvidenceBase, IIdentityPermissionFactory
{
private SecurityZone m_zone;
private static readonly String[] s_names =
{"MyComputer", "Intranet", "Trusted", "Internet", "Untrusted", "NoZone"};
public Zone(SecurityZone zone)
{
if (zone < SecurityZone.NoZone || zone > SecurityZone.Untrusted)
throw new ArgumentException( Environment.GetResourceString( "Argument_IllegalZone" ) );
Contract.EndContractBlock();
m_zone = zone;
}
private Zone(Zone zone)
{
Debug.Assert(zone != null);
m_zone = zone.m_zone;
}
public IPermission CreateIdentityPermission( Evidence evidence )
{
return new ZoneIdentityPermission( SecurityZone );
}
public SecurityZone SecurityZone
{
get
{
return m_zone;
}
}
public override bool Equals(Object o)
{
Zone other = o as Zone;
if (other == null)
{
return false;
}
return SecurityZone == other.SecurityZone;
}
public override int GetHashCode()
{
return (int)SecurityZone;
}
public override EvidenceBase Clone()
{
return new Zone(this);
}
public Object Copy()
{
return Clone();
}
// INormalizeForIsolatedStorage is not implemented for startup perf
// equivalent to INormalizeForIsolatedStorage.Normalize()
internal Object Normalize()
{
return s_names[(int)SecurityZone];
}
}
}
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