HostProtectionPermission.cs source code in C# .NET

                        
Code:
                         / Dotnetfx_Vista_SP2 / Dotnetfx_Vista_SP2 / 8.0.50727.4016 / DEVDIV / depot / DevDiv / releases / whidbey / NetFxQFE / ndp / clr / src / BCL / System / Security / Permissions / HostProtectionPermission.cs / 1 / HostProtectionPermission.cs
                        

                        
                            // ==++== 
//
//   Copyright (c) Microsoft Corporation.  All rights reserved.
//
// ==--== 
// HostProtectionPermission.cs
// 
 
namespace System.Security.Permissions
{ 
    using System;
    using System.IO;
    using System.Security.Util;
    using System.Text; 
    using System.Threading;
    using System.Runtime.Remoting; 
    using System.Security; 
    using System.Runtime.Serialization;
    using System.Reflection; 
    using System.Globalization;

    // Keep this enum in [....] with tools\ngen\ngen.cpp and inc\mscoree.idl
 
    [Flags, Serializable]
    [System.Runtime.InteropServices.ComVisible(true)] 
    public enum HostProtectionResource 
    {
        None                        = 0x0, 
        //--------------------------------
        Synchronization             = 0x1,
        SharedState                 = 0x2,
        ExternalProcessMgmt         = 0x4, 
        SelfAffectingProcessMgmt    = 0x8,
        ExternalThreading           = 0x10, 
        SelfAffectingThreading      = 0x20, 
        SecurityInfrastructure      = 0x40,
        UI                          = 0x80, 
        MayLeakOnAbort              = 0x100,
        //---------------------------------
        All                         = 0x1ff,
    } 

    [AttributeUsage(AttributeTargets.Method | AttributeTargets.Constructor | AttributeTargets.Class | AttributeTargets.Struct | AttributeTargets.Assembly | AttributeTargets.Delegate, AllowMultiple = true, Inherited = false )] 
    [System.Runtime.InteropServices.ComVisible(true)] 
    [Serializable()] sealed public class HostProtectionAttribute : CodeAccessSecurityAttribute
    { 
        private HostProtectionResource m_resources = HostProtectionResource.None;

        public HostProtectionAttribute()
            : base( SecurityAction.LinkDemand ) 
        {
        } 
 
        public HostProtectionAttribute( SecurityAction action )
            : base( action ) 
        {
            if (action != SecurityAction.LinkDemand)
                throw new ArgumentException(Environment.GetResourceString("Argument_InvalidFlag"));
        } 

        public HostProtectionResource Resources { 
            get { return m_resources; } 
            set { m_resources = value; }
        } 

        public bool Synchronization {
            get { return (m_resources & HostProtectionResource.Synchronization) != 0; }
            set { m_resources = (value ? m_resources | HostProtectionResource.Synchronization : m_resources & ~HostProtectionResource.Synchronization); } 
        }
 
        public bool SharedState { 
            get { return (m_resources & HostProtectionResource.SharedState) != 0; }
            set { m_resources = (value ? m_resources | HostProtectionResource.SharedState : m_resources & ~HostProtectionResource.SharedState); } 
        }

        public bool ExternalProcessMgmt {
            get { return (m_resources & HostProtectionResource.ExternalProcessMgmt) != 0; } 
            set { m_resources = (value ? m_resources | HostProtectionResource.ExternalProcessMgmt : m_resources & ~HostProtectionResource.ExternalProcessMgmt); }
        } 
 
        public bool SelfAffectingProcessMgmt {
            get { return (m_resources & HostProtectionResource.SelfAffectingProcessMgmt) != 0; } 
            set { m_resources = (value ? m_resources | HostProtectionResource.SelfAffectingProcessMgmt : m_resources & ~HostProtectionResource.SelfAffectingProcessMgmt); }
        }

        public bool ExternalThreading { 
            get { return (m_resources & HostProtectionResource.ExternalThreading) != 0; }
            set { m_resources = (value ? m_resources | HostProtectionResource.ExternalThreading : m_resources & ~HostProtectionResource.ExternalThreading); } 
        } 

        public bool SelfAffectingThreading { 
            get { return (m_resources & HostProtectionResource.SelfAffectingThreading) != 0; }
            set { m_resources = (value ? m_resources | HostProtectionResource.SelfAffectingThreading : m_resources & ~HostProtectionResource.SelfAffectingThreading); }
        }
 
[System.Runtime.InteropServices.ComVisible(true)]
        public bool SecurityInfrastructure { 
            get { return (m_resources & HostProtectionResource.SecurityInfrastructure) != 0; } 
            set { m_resources = (value ? m_resources | HostProtectionResource.SecurityInfrastructure : m_resources & ~HostProtectionResource.SecurityInfrastructure); }
        } 

        public bool UI {
            get { return (m_resources & HostProtectionResource.UI) != 0; }
            set { m_resources = (value ? m_resources | HostProtectionResource.UI : m_resources & ~HostProtectionResource.UI); } 
        }
 
        public bool MayLeakOnAbort { 
            get { return (m_resources & HostProtectionResource.MayLeakOnAbort) != 0; }
            set { m_resources = (value ? m_resources | HostProtectionResource.MayLeakOnAbort : m_resources & ~HostProtectionResource.MayLeakOnAbort); } 
        }

        public override IPermission CreatePermission()
        { 
            if (m_unrestricted)
            { 
                return new HostProtectionPermission( PermissionState.Unrestricted ); 
            }
            else 
            {
                return new HostProtectionPermission( m_resources );
            }
        } 
    }
 
    [Serializable()] 
    sealed internal class HostProtectionPermission : CodeAccessPermission, IUnrestrictedPermission, IBuiltInPermission
    { 
        //------------------------------------------------------
        //
        // GLOBALS
        // 
        //-----------------------------------------------------
 
        // This value is set by PermissionSet.FilterHostProtectionPermissions.  It is only used for 
        // constructing a HostProtectionException object.  Changing it will not affect HostProtection.
        internal static HostProtectionResource protectedResources = HostProtectionResource.None; 

        //-----------------------------------------------------
        //
        // MEMBERS 
        //
        //----------------------------------------------------- 
        private HostProtectionResource m_resources; 

        //------------------------------------------------------ 
        //
        // CONSTRUCTORS
        //
        //----------------------------------------------------- 
        public HostProtectionPermission(PermissionState state)
        { 
            if (state == PermissionState.Unrestricted) 
                Resources = HostProtectionResource.All;
            else if (state == PermissionState.None) 
                Resources = HostProtectionResource.None;
            else
                throw new ArgumentException(Environment.GetResourceString("Argument_InvalidPermissionState"));
        } 

        public HostProtectionPermission(HostProtectionResource resources) 
        { 
            Resources = resources;
        } 

        //------------------------------------------------------
        //
        // IPermission interface implementation 
        //
        //------------------------------------------------------ 
        public bool IsUnrestricted() 
        {
            return Resources == HostProtectionResource.All; 
        }

        //-----------------------------------------------------
        // 
        // Properties
        // 
        //------------------------------------------------------ 
        public HostProtectionResource Resources
        { 
            set
            {
                if(value < HostProtectionResource.None || value > HostProtectionResource.All)
                    throw new ArgumentException(String.Format(CultureInfo.CurrentCulture, Environment.GetResourceString("Arg_EnumIllegalVal"), (int)value)); 
                m_resources = value;
            } 
 
            get
            { 
                return m_resources;
            }
        }
 
        //-----------------------------------------------------
        // 
        // IPermission interface implementation 
        //
        //----------------------------------------------------- 
        public override bool IsSubsetOf(IPermission target)
        {
            if (target == null)
                return m_resources == HostProtectionResource.None; 
            if(this.GetType() != target.GetType())
                throw new ArgumentException( String.Format(CultureInfo.CurrentCulture, Environment.GetResourceString("Argument_WrongType"), this.GetType().FullName) ); 
            return ((uint)this.m_resources & (uint)((HostProtectionPermission)target).m_resources) == (uint)this.m_resources; 
        }
 
        public override IPermission Union(IPermission target)
        {
            if (target == null)
                return(this.Copy()); 
            if(this.GetType() != target.GetType())
                throw new ArgumentException( String.Format(CultureInfo.CurrentCulture, Environment.GetResourceString("Argument_WrongType"), this.GetType().FullName) ); 
            HostProtectionResource newResources = (HostProtectionResource)((uint)this.m_resources | (uint)((HostProtectionPermission)target).m_resources); 
            return new HostProtectionPermission(newResources);
        } 

        public override IPermission Intersect(IPermission target)
        {
            if (target == null) 
                return null;
            if(this.GetType() != target.GetType()) 
                throw new ArgumentException( String.Format(CultureInfo.CurrentCulture, Environment.GetResourceString("Argument_WrongType"), this.GetType().FullName) ); 
            HostProtectionResource newResources = (HostProtectionResource)((uint)this.m_resources & (uint)((HostProtectionPermission)target).m_resources);
            if(newResources == HostProtectionResource.None) 
                return null;
            return new HostProtectionPermission(newResources);
        }
 
        public override IPermission Copy()
        { 
            return new HostProtectionPermission(m_resources); 
        }
 

        //-----------------------------------------------------
        //
        // XML 
        //
        //------------------------------------------------------ 
        public override SecurityElement ToXml() 
        {
            SecurityElement esd = CodeAccessPermission.CreatePermissionElement( this, this.GetType().FullName ); 
            if(IsUnrestricted())
                esd.AddAttribute( "Unrestricted", "true" );
            else
                esd.AddAttribute( "Resources", XMLUtil.BitFieldEnumToString( typeof( HostProtectionResource ), Resources ) ); 
            return esd;
        } 
 
        public override void FromXml(SecurityElement esd)
        { 
            CodeAccessPermission.ValidateElement( esd, this );
            if (XMLUtil.IsUnrestricted( esd ))
                Resources = HostProtectionResource.All;
            else 
            {
                String resources = esd.Attribute( "Resources" ); 
                if (resources == null) 
                    Resources = HostProtectionResource.None;
                else 
                    Resources = (HostProtectionResource)Enum.Parse( typeof( HostProtectionResource ), resources );
            }
        }
 
        //-----------------------------------------------------
        // 
        // OBJECT OVERRIDES 
        //
        //------------------------------------------------------ 

        /// 
        int IBuiltInPermission.GetTokenIndex()
        { 
            return HostProtectionPermission.GetTokenIndex();
        } 
 
        internal static int GetTokenIndex()
        { 
            return BuiltInPermissionIndex.HostProtectionPermissionIndex;
        }
    }
} 

// File provided for Reference Use Only by Microsoft Corporation (c) 2007.
// ==++== 
//
//   Copyright (c) Microsoft Corporation.  All rights reserved.
//
// ==--== 
// HostProtectionPermission.cs
// 
 
namespace System.Security.Permissions
{ 
    using System;
    using System.IO;
    using System.Security.Util;
    using System.Text; 
    using System.Threading;
    using System.Runtime.Remoting; 
    using System.Security; 
    using System.Runtime.Serialization;
    using System.Reflection; 
    using System.Globalization;

    // Keep this enum in [....] with tools\ngen\ngen.cpp and inc\mscoree.idl
 
    [Flags, Serializable]
    [System.Runtime.InteropServices.ComVisible(true)] 
    public enum HostProtectionResource 
    {
        None                        = 0x0, 
        //--------------------------------
        Synchronization             = 0x1,
        SharedState                 = 0x2,
        ExternalProcessMgmt         = 0x4, 
        SelfAffectingProcessMgmt    = 0x8,
        ExternalThreading           = 0x10, 
        SelfAffectingThreading      = 0x20, 
        SecurityInfrastructure      = 0x40,
        UI                          = 0x80, 
        MayLeakOnAbort              = 0x100,
        //---------------------------------
        All                         = 0x1ff,
    } 

    [AttributeUsage(AttributeTargets.Method | AttributeTargets.Constructor | AttributeTargets.Class | AttributeTargets.Struct | AttributeTargets.Assembly | AttributeTargets.Delegate, AllowMultiple = true, Inherited = false )] 
    [System.Runtime.InteropServices.ComVisible(true)] 
    [Serializable()] sealed public class HostProtectionAttribute : CodeAccessSecurityAttribute
    { 
        private HostProtectionResource m_resources = HostProtectionResource.None;

        public HostProtectionAttribute()
            : base( SecurityAction.LinkDemand ) 
        {
        } 
 
        public HostProtectionAttribute( SecurityAction action )
            : base( action ) 
        {
            if (action != SecurityAction.LinkDemand)
                throw new ArgumentException(Environment.GetResourceString("Argument_InvalidFlag"));
        } 

        public HostProtectionResource Resources { 
            get { return m_resources; } 
            set { m_resources = value; }
        } 

        public bool Synchronization {
            get { return (m_resources & HostProtectionResource.Synchronization) != 0; }
            set { m_resources = (value ? m_resources | HostProtectionResource.Synchronization : m_resources & ~HostProtectionResource.Synchronization); } 
        }
 
        public bool SharedState { 
            get { return (m_resources & HostProtectionResource.SharedState) != 0; }
            set { m_resources = (value ? m_resources | HostProtectionResource.SharedState : m_resources & ~HostProtectionResource.SharedState); } 
        }

        public bool ExternalProcessMgmt {
            get { return (m_resources & HostProtectionResource.ExternalProcessMgmt) != 0; } 
            set { m_resources = (value ? m_resources | HostProtectionResource.ExternalProcessMgmt : m_resources & ~HostProtectionResource.ExternalProcessMgmt); }
        } 
 
        public bool SelfAffectingProcessMgmt {
            get { return (m_resources & HostProtectionResource.SelfAffectingProcessMgmt) != 0; } 
            set { m_resources = (value ? m_resources | HostProtectionResource.SelfAffectingProcessMgmt : m_resources & ~HostProtectionResource.SelfAffectingProcessMgmt); }
        }

        public bool ExternalThreading { 
            get { return (m_resources & HostProtectionResource.ExternalThreading) != 0; }
            set { m_resources = (value ? m_resources | HostProtectionResource.ExternalThreading : m_resources & ~HostProtectionResource.ExternalThreading); } 
        } 

        public bool SelfAffectingThreading { 
            get { return (m_resources & HostProtectionResource.SelfAffectingThreading) != 0; }
            set { m_resources = (value ? m_resources | HostProtectionResource.SelfAffectingThreading : m_resources & ~HostProtectionResource.SelfAffectingThreading); }
        }
 
[System.Runtime.InteropServices.ComVisible(true)]
        public bool SecurityInfrastructure { 
            get { return (m_resources & HostProtectionResource.SecurityInfrastructure) != 0; } 
            set { m_resources = (value ? m_resources | HostProtectionResource.SecurityInfrastructure : m_resources & ~HostProtectionResource.SecurityInfrastructure); }
        } 

        public bool UI {
            get { return (m_resources & HostProtectionResource.UI) != 0; }
            set { m_resources = (value ? m_resources | HostProtectionResource.UI : m_resources & ~HostProtectionResource.UI); } 
        }
 
        public bool MayLeakOnAbort { 
            get { return (m_resources & HostProtectionResource.MayLeakOnAbort) != 0; }
            set { m_resources = (value ? m_resources | HostProtectionResource.MayLeakOnAbort : m_resources & ~HostProtectionResource.MayLeakOnAbort); } 
        }

        public override IPermission CreatePermission()
        { 
            if (m_unrestricted)
            { 
                return new HostProtectionPermission( PermissionState.Unrestricted ); 
            }
            else 
            {
                return new HostProtectionPermission( m_resources );
            }
        } 
    }
 
    [Serializable()] 
    sealed internal class HostProtectionPermission : CodeAccessPermission, IUnrestrictedPermission, IBuiltInPermission
    { 
        //------------------------------------------------------
        //
        // GLOBALS
        // 
        //-----------------------------------------------------
 
        // This value is set by PermissionSet.FilterHostProtectionPermissions.  It is only used for 
        // constructing a HostProtectionException object.  Changing it will not affect HostProtection.
        internal static HostProtectionResource protectedResources = HostProtectionResource.None; 

        //-----------------------------------------------------
        //
        // MEMBERS 
        //
        //----------------------------------------------------- 
        private HostProtectionResource m_resources; 

        //------------------------------------------------------ 
        //
        // CONSTRUCTORS
        //
        //----------------------------------------------------- 
        public HostProtectionPermission(PermissionState state)
        { 
            if (state == PermissionState.Unrestricted) 
                Resources = HostProtectionResource.All;
            else if (state == PermissionState.None) 
                Resources = HostProtectionResource.None;
            else
                throw new ArgumentException(Environment.GetResourceString("Argument_InvalidPermissionState"));
        } 

        public HostProtectionPermission(HostProtectionResource resources) 
        { 
            Resources = resources;
        } 

        //------------------------------------------------------
        //
        // IPermission interface implementation 
        //
        //------------------------------------------------------ 
        public bool IsUnrestricted() 
        {
            return Resources == HostProtectionResource.All; 
        }

        //-----------------------------------------------------
        // 
        // Properties
        // 
        //------------------------------------------------------ 
        public HostProtectionResource Resources
        { 
            set
            {
                if(value < HostProtectionResource.None || value > HostProtectionResource.All)
                    throw new ArgumentException(String.Format(CultureInfo.CurrentCulture, Environment.GetResourceString("Arg_EnumIllegalVal"), (int)value)); 
                m_resources = value;
            } 
 
            get
            { 
                return m_resources;
            }
        }
 
        //-----------------------------------------------------
        // 
        // IPermission interface implementation 
        //
        //----------------------------------------------------- 
        public override bool IsSubsetOf(IPermission target)
        {
            if (target == null)
                return m_resources == HostProtectionResource.None; 
            if(this.GetType() != target.GetType())
                throw new ArgumentException( String.Format(CultureInfo.CurrentCulture, Environment.GetResourceString("Argument_WrongType"), this.GetType().FullName) ); 
            return ((uint)this.m_resources & (uint)((HostProtectionPermission)target).m_resources) == (uint)this.m_resources; 
        }
 
        public override IPermission Union(IPermission target)
        {
            if (target == null)
                return(this.Copy()); 
            if(this.GetType() != target.GetType())
                throw new ArgumentException( String.Format(CultureInfo.CurrentCulture, Environment.GetResourceString("Argument_WrongType"), this.GetType().FullName) ); 
            HostProtectionResource newResources = (HostProtectionResource)((uint)this.m_resources | (uint)((HostProtectionPermission)target).m_resources); 
            return new HostProtectionPermission(newResources);
        } 

        public override IPermission Intersect(IPermission target)
        {
            if (target == null) 
                return null;
            if(this.GetType() != target.GetType()) 
                throw new ArgumentException( String.Format(CultureInfo.CurrentCulture, Environment.GetResourceString("Argument_WrongType"), this.GetType().FullName) ); 
            HostProtectionResource newResources = (HostProtectionResource)((uint)this.m_resources & (uint)((HostProtectionPermission)target).m_resources);
            if(newResources == HostProtectionResource.None) 
                return null;
            return new HostProtectionPermission(newResources);
        }
 
        public override IPermission Copy()
        { 
            return new HostProtectionPermission(m_resources); 
        }
 

        //-----------------------------------------------------
        //
        // XML 
        //
        //------------------------------------------------------ 
        public override SecurityElement ToXml() 
        {
            SecurityElement esd = CodeAccessPermission.CreatePermissionElement( this, this.GetType().FullName ); 
            if(IsUnrestricted())
                esd.AddAttribute( "Unrestricted", "true" );
            else
                esd.AddAttribute( "Resources", XMLUtil.BitFieldEnumToString( typeof( HostProtectionResource ), Resources ) ); 
            return esd;
        } 
 
        public override void FromXml(SecurityElement esd)
        { 
            CodeAccessPermission.ValidateElement( esd, this );
            if (XMLUtil.IsUnrestricted( esd ))
                Resources = HostProtectionResource.All;
            else 
            {
                String resources = esd.Attribute( "Resources" ); 
                if (resources == null) 
                    Resources = HostProtectionResource.None;
                else 
                    Resources = (HostProtectionResource)Enum.Parse( typeof( HostProtectionResource ), resources );
            }
        }
 
        //-----------------------------------------------------
        // 
        // OBJECT OVERRIDES 
        //
        //------------------------------------------------------ 

        /// 
        int IBuiltInPermission.GetTokenIndex()
        { 
            return HostProtectionPermission.GetTokenIndex();
        } 
 
        internal static int GetTokenIndex()
        { 
            return BuiltInPermissionIndex.HostProtectionPermissionIndex;
        }
    }
} 

// File provided for Reference Use Only by Microsoft Corporation (c) 2007.

                        

                        

                        
                        

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