MessageQueuePermissionAttribute.cs source code in C# .NET

Source code for the .NET framework in C#

                        
Code:

                         / 4.0 / 4.0 / untmp / DEVDIV_TFS / Dev10 / Releases / RTMRel / ndp / fx / src / Services / Messaging / System / Messaging / MessageQueuePermissionAttribute.cs / 1305376 / MessageQueuePermissionAttribute.cs
                        

                        
                            //------------------------------------------------------------------------------ 
// 
//     Copyright (c) Microsoft Corporation.  All rights reserved.
// 
//----------------------------------------------------------------------------- 

namespace System.Messaging { 
    using System.ComponentModel; 
    using System.Security;
    using System.Security.Permissions; 

    /// 
    [
    AttributeUsage(AttributeTargets.Method | AttributeTargets.Constructor | AttributeTargets.Class | AttributeTargets.Struct | AttributeTargets.Assembly | AttributeTargets.Event, AllowMultiple = true, Inherited = false ), 
    Serializable()
    ] 
 	[System.Diagnostics.CodeAnalysis.SuppressMessage("Microsoft.Performance", "CA1813:AvoidUnsealedAttributes")] 
    public class MessageQueuePermissionAttribute : CodeAccessSecurityAttribute {
        private string label; 
        private string machineName;
        private string path;
        private string category;
        private MessageQueuePermissionAccess permissionAccess; 

        ///  
        public MessageQueuePermissionAttribute(SecurityAction action) 
        : base(action) {
        } 

        /// 
        public string Category {
            get { 
                return this.category;
            } 
 
            set {
                string oldValue = this.category; 
                this.category = value;
                Exception e = CheckProperties();
                if (e != null) {
                    this.category = oldValue; 
                    throw e;
                } 
            } 
        }
 
        /// 
        public string Label {
            get {
                return this.label; 
            }
 
            set { 
                string oldValue = this.label;
                this.label = value; 
                Exception e = CheckProperties();
                if (e != null) {
                    this.label = oldValue;
                    throw e; 
                }
            } 
        } 

        ///  
        public string MachineName {
            get {
                return this.machineName;
            } 

            set{ 
                if (value != null && !SyntaxCheck.CheckMachineName(value)) 
                    throw new ArgumentException(Res.GetString(Res.InvalidProperty, "MachineName", value));
 
                string oldValue = this.machineName;
                this.machineName = value;
                Exception e = CheckProperties();
                if (e != null) { 
                    this.machineName = oldValue;
                    throw e; 
                } 
            }
        } 

        /// 
        public string Path {
            get { 
                return this.path;
            } 
 
            set {
                if (value != null && value != MessageQueuePermission.Any && !MessageQueue.ValidatePath(value, false)) 
                    throw new ArgumentException(Res.GetString(Res.PathSyntax));

                string oldValue = this.path;
                this.path = value; 
                Exception e = CheckProperties();
                if (e != null) { 
                    this.path = oldValue; 
                    throw e;
                } 
            }
        }

        ///  
        public MessageQueuePermissionAccess PermissionAccess {
            get { 
                return this.permissionAccess; 
            }
 
            set {
                this.permissionAccess = value;
            }
        } 

        ///  
        public override IPermission CreatePermission() { 
            if (Unrestricted)
                return new MessageQueuePermission(PermissionState.Unrestricted); 

            CheckProperties();
            if (this.path != null)
                return new MessageQueuePermission(this.PermissionAccess, this.path); 

            return new MessageQueuePermission(this.PermissionAccess, this.machineName, this.label, this.category); 
        } 

        private Exception CheckProperties() { 
            if (this.path != null &&
                (this.machineName != null || this.label != null || this.category != null))
                return new InvalidOperationException(Res.GetString(Res.PermissionPathOrCriteria));
 
            if (this.path == null &&
                this.machineName == null && this.label == null && this.category == null) 
                return new InvalidOperationException(Res.GetString(Res.PermissionAllNull)); 

            return null; 
        }

    }
} 


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

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