Rules.cs source code in C# .NET

                        Code:
                         / FXUpdate3074 / FXUpdate3074 / 1.1 / untmp / whidbey / QFE / ndp / clr / src / BCL / System / Security / AccessControl / Rules.cs / 1 / Rules.cs
                        
                        
                            // Copyright (c) Microsoft Corporation. All rights reserved.

using System; 
using System.Collections;
using System.Security.Principal;

namespace System.Security.AccessControl 
{
 
    public enum AccessControlType 
    {
        Allow          = 0, 
        Deny           = 1,
    }

 
    public abstract class AuthorizationRule
    { 
        #region Private Members 

        private readonly IdentityReference _identity; 
        private readonly int _accessMask;
        private readonly bool _isInherited;
        private readonly InheritanceFlags _inheritanceFlags;
        private readonly PropagationFlags _propagationFlags; 

        #endregion 
 
        #region Constructors
 
        internal protected AuthorizationRule(
            IdentityReference identity,
            int accessMask,
            bool isInherited, 
            InheritanceFlags inheritanceFlags,
            PropagationFlags propagationFlags ) 
        { 
            if ( identity == null )
            { 
                throw new ArgumentNullException( "identity" );
            }

            if ( identity.IsValidTargetType( typeof( SecurityIdentifier )) == false ) 
            {
                throw new ArgumentException( 
                    Environment.GetResourceString( "Arg_MustBeIdentityReferenceType" ), 
                    "identity" );
            } 

            if ( accessMask == 0 )
            {
                throw new ArgumentException( 
                    Environment.GetResourceString( "Argument_ArgumentZero" ),
                    "accessMask" ); 
            } 

            if ( inheritanceFlags < InheritanceFlags.None || inheritanceFlags > (InheritanceFlags.ObjectInherit | InheritanceFlags.ContainerInherit) ) 
            {
                throw new ArgumentOutOfRangeException(
                    "inheritanceFlags",
                    Environment.GetResourceString( "Argument_InvalidEnumValue", inheritanceFlags, "InheritanceFlags" )); 
            }
 
            if ( propagationFlags < PropagationFlags.None || propagationFlags > (PropagationFlags.NoPropagateInherit | PropagationFlags.InheritOnly) ) 
            {
                throw new ArgumentOutOfRangeException( 
                    "propagationFlags",
                    Environment.GetResourceString( "Argument_InvalidEnumValue", inheritanceFlags, "PropagationFlags" ));
            }
 
            _identity = identity;
            _accessMask = accessMask; 
            _isInherited = isInherited; 
            _inheritanceFlags = inheritanceFlags;
 
            if ( inheritanceFlags != 0 )
            {
                _propagationFlags = propagationFlags;
            } 
            else
            { 
                _propagationFlags = 0; 
            }
        } 

        #endregion

        #region Properties 

        public IdentityReference IdentityReference 
        { 
            get { return _identity; }
        } 

        internal protected int AccessMask
        {
            get { return _accessMask; } 
        }
 
        public bool IsInherited 
        {
            get { return _isInherited; } 
        }

        public InheritanceFlags InheritanceFlags
        { 
            get { return _inheritanceFlags; }
        } 
 
        public PropagationFlags PropagationFlags
        { 
            get { return _propagationFlags; }
        }

        #endregion 
    }
 
 
    public abstract class AccessRule : AuthorizationRule
    { 
        #region Private Methods

        private readonly AccessControlType _type;
 
        #endregion
 
        #region Constructors 

        protected AccessRule( 
            IdentityReference identity,
            int accessMask,
            bool isInherited,
            InheritanceFlags inheritanceFlags, 
            PropagationFlags propagationFlags,
            AccessControlType type ) 
            : base( identity, accessMask, isInherited, inheritanceFlags, propagationFlags ) 
        {
            if ( type != AccessControlType.Allow && 
                type != AccessControlType.Deny )
            {
                throw new ArgumentOutOfRangeException(
                    "type", 
                    Environment.GetResourceString( "ArgumentOutOfRange_Enum" ));
            } 
 
            if ( inheritanceFlags < InheritanceFlags.None || inheritanceFlags > (InheritanceFlags.ObjectInherit | InheritanceFlags.ContainerInherit) )
            { 
                throw new ArgumentOutOfRangeException(
                    "inheritanceFlags",
                    Environment.GetResourceString( "Argument_InvalidEnumValue", inheritanceFlags, "InheritanceFlags" ));
            } 

            if ( propagationFlags < PropagationFlags.None || propagationFlags > (PropagationFlags.NoPropagateInherit | PropagationFlags.InheritOnly) ) 
            { 
                throw new ArgumentOutOfRangeException(
                    "propagationFlags", 
                    Environment.GetResourceString( "Argument_InvalidEnumValue", inheritanceFlags, "PropagationFlags" ));
            }

            _type = type; 
        }
 
        #endregion 

        #region Properties 

        public AccessControlType AccessControlType
        {
            get { return _type; } 
        }
 
        #endregion 
    }
 

    public abstract class ObjectAccessRule: AccessRule
    {
        #region Private Members 

        private readonly Guid _objectType; 
        private readonly Guid _inheritedObjectType; 
        private readonly ObjectAceFlags _objectFlags = ObjectAceFlags.None;
 
        #endregion

        #region Constructors
 
        protected ObjectAccessRule( IdentityReference identity, int accessMask, bool isInherited, InheritanceFlags inheritanceFlags, PropagationFlags propagationFlags, Guid objectType, Guid inheritedObjectType, AccessControlType type )
            : base( identity, accessMask, isInherited, inheritanceFlags, propagationFlags, type ) 
        { 
            if (( !objectType.Equals( Guid.Empty )) && (( accessMask & ObjectAce.AccessMaskWithObjectType ) != 0 ))
            { 
                _objectType = objectType;
                _objectFlags |= ObjectAceFlags.ObjectAceTypePresent;
            }
            else 
            {
                _objectType = Guid.Empty; 
            } 

            if (( !inheritedObjectType.Equals( Guid.Empty )) && ((inheritanceFlags & InheritanceFlags.ContainerInherit ) != 0 )) 
            {
                _inheritedObjectType = inheritedObjectType;
                _objectFlags |= ObjectAceFlags.InheritedObjectAceTypePresent;
            } 
            else
            { 
                _inheritedObjectType = Guid.Empty; 
            }
        } 

        #endregion

        #region Properties 

        public Guid ObjectType 
        { 
            get { return _objectType; }
        } 

        public Guid InheritedObjectType
        {
            get { return _inheritedObjectType; } 
        }
 
        public ObjectAceFlags ObjectFlags 
        {
            get { return _objectFlags; } 
        }

        #endregion
    } 

 
    public abstract class AuditRule : AuthorizationRule 
    {
        #region Private Members 

        private readonly AuditFlags _flags;

        #endregion 

        #region Constructors 
 
        protected AuditRule(
            IdentityReference identity, 
            int accessMask,
            bool isInherited,
            InheritanceFlags inheritanceFlags,
            PropagationFlags propagationFlags, 
            AuditFlags auditFlags )
            : base( identity, accessMask, isInherited, inheritanceFlags, propagationFlags ) 
        { 
            if ( auditFlags == AuditFlags.None )
            { 
                throw new ArgumentException(
                    Environment.GetResourceString( "Arg_EnumAtLeastOneFlag" ),
                    "auditFlags" );
            } 
            else if (( auditFlags & ~( AuditFlags.Success | AuditFlags.Failure )) != 0 )
            { 
                throw new ArgumentOutOfRangeException( 
                    "auditFlags",
                    Environment.GetResourceString( "ArgumentOutOfRange_Enum" )); 
            }

            _flags = auditFlags;
        } 

        #endregion 
 
        #region Public Properties
 
        public AuditFlags AuditFlags
        {
            get { return _flags; }
        } 

        #endregion 
    } 

 
    public abstract class ObjectAuditRule: AuditRule
    {
        #region Private Members
 
        private readonly Guid _objectType;
        private readonly Guid _inheritedObjectType; 
        private readonly ObjectAceFlags _objectFlags = ObjectAceFlags.None; 

        #endregion 

        #region Constructors

        protected ObjectAuditRule( IdentityReference identity, int accessMask, bool isInherited, InheritanceFlags inheritanceFlags, PropagationFlags propagationFlags, Guid objectType, Guid inheritedObjectType, AuditFlags auditFlags ) 
            : base( identity, accessMask, isInherited, inheritanceFlags, propagationFlags, auditFlags )
        { 
 
            if (( !objectType.Equals( Guid.Empty )) && (( accessMask & ObjectAce.AccessMaskWithObjectType ) != 0 ))
            { 
                _objectType = objectType;
                _objectFlags |= ObjectAceFlags.ObjectAceTypePresent;
            }
            else 
            {
                _objectType = Guid.Empty; 
            } 

            if (( !inheritedObjectType.Equals( Guid.Empty )) && ((inheritanceFlags & InheritanceFlags.ContainerInherit ) != 0 )) 
            {
                _inheritedObjectType = inheritedObjectType;
                _objectFlags |= ObjectAceFlags.InheritedObjectAceTypePresent;
            } 
            else
            { 
                _inheritedObjectType = Guid.Empty; 
            }
        } 

        #endregion

        #region Public Properties 

        public Guid ObjectType 
        { 
            get { return _objectType; }
        } 

        public Guid InheritedObjectType
        {
            get { return _inheritedObjectType; } 
        }
 
        public ObjectAceFlags ObjectFlags 
        {
            get { return _objectFlags; } 
        }


        #endregion 
    }
 
 
    public sealed class AuthorizationRuleCollection : ReadOnlyCollectionBase
    { 
        #region Constructors

        internal AuthorizationRuleCollection()
            : base() 
        {
        } 
 
        #endregion
 
        #region Internal methods

        internal void AddRule( AuthorizationRule rule )
        { 
            InnerList.Add( rule );
        } 
 
        #endregion
 
        #region ICollection Members

        public void CopyTo( AuthorizationRule[] rules, int index )
        { 
            (( ICollection )this ).CopyTo( rules, index );
        } 
 
        #endregion
 
        #region Public properties

        public AuthorizationRule this[int index]
        { 
            get { return InnerList[index] as AuthorizationRule; }
        } 
 
        #endregion
    } 
}

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