GACIdentityPermission.cs source code in C# .NET

Source code for the .NET framework in C#

                        
Code:

                         / FX-1434 / FX-1434 / 1.0 / untmp / whidbey / REDBITS / ndp / clr / src / BCL / System / Security / Permissions / GACIdentityPermission.cs / 1 / GACIdentityPermission.cs
                        

                        
                            // ==++== 
//
//   Copyright (c) Microsoft Corporation.  All rights reserved.
//
// ==--== 
// GacIdentityPermission.cs
// 
 
namespace System.Security.Permissions
{ 
    using System;
    using SecurityElement = System.Security.SecurityElement;
    using System.Globalization;
 
    [AttributeUsage(AttributeTargets.Method | AttributeTargets.Constructor | AttributeTargets.Class | AttributeTargets.Struct | AttributeTargets.Assembly, AllowMultiple = true, Inherited = false )]
    [System.Runtime.InteropServices.ComVisible(true)] 
    [Serializable()] sealed public class GacIdentityPermissionAttribute : CodeAccessSecurityAttribute 
    {
        public GacIdentityPermissionAttribute( SecurityAction action ) 
            : base( action )
        {
        }
 
        public override IPermission CreatePermission()
        { 
            return new GacIdentityPermission(); 
        }
    } 


    [System.Runtime.InteropServices.ComVisible(true)]
    [Serializable()] sealed public class GacIdentityPermission : CodeAccessPermission, IBuiltInPermission 
    {
        //------------------------------------------------------ 
        // 
        // PUBLIC CONSTRUCTORS
        // 
        //-----------------------------------------------------

        public GacIdentityPermission(PermissionState state)
        { 
            if (state == PermissionState.Unrestricted)
            { 
                if(!CodeAccessSecurityEngine.DoesFullTrustMeanFullTrust()) 
                    throw new ArgumentException(Environment.GetResourceString("Argument_UnrestrictedIdentityPermission"));
            } 
            else if (state == PermissionState.None)
            {

            } 
            else
            { 
                throw new ArgumentException(Environment.GetResourceString("Argument_InvalidPermissionState")); 
            }
        } 

        public GacIdentityPermission()
        {
        } 

        //----------------------------------------------------- 
        // 
        // IPERMISSION IMPLEMENTATION
        // 
        //-----------------------------------------------------


        public override IPermission Copy() 
        {
            return new GacIdentityPermission(); 
        } 

        public override bool IsSubsetOf(IPermission target) 
        {
            if (target == null)
                return false;
            if (!(target is GacIdentityPermission)) 
                throw new ArgumentException(String.Format(CultureInfo.CurrentCulture, Environment.GetResourceString("Argument_WrongType"), this.GetType().FullName));
            return true; 
        } 

        public override IPermission Intersect(IPermission target) 
        {
            if (target == null)
                return null;
            if (!(target is GacIdentityPermission)) 
                throw new ArgumentException(String.Format(CultureInfo.CurrentCulture, Environment.GetResourceString("Argument_WrongType"), this.GetType().FullName));
            return this.Copy(); 
        } 

        public override IPermission Union(IPermission target) 
        {
            if (target == null)
                return this.Copy();
            if (!(target is GacIdentityPermission)) 
                throw new ArgumentException(String.Format(CultureInfo.CurrentCulture, Environment.GetResourceString("Argument_WrongType"), this.GetType().FullName));
            return this.Copy(); 
        } 

        public override SecurityElement ToXml() 
        {
            SecurityElement securityElement = CodeAccessPermission.CreatePermissionElement( this, "System.Security.Permissions.GacIdentityPermission" );
            return securityElement;
        } 

        public override void FromXml(SecurityElement securityElement) 
        { 
            CodeAccessPermission.ValidateElement(securityElement, this);
        } 

        /// 
        int IBuiltInPermission.GetTokenIndex()
        { 
            return GacIdentityPermission.GetTokenIndex();
        } 
 
        internal static int GetTokenIndex()
        { 
            return BuiltInPermissionIndex.GacIdentityPermissionIndex;
        }
    }
}

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