CommunityServer中的WeblogAdminTemplatedWebControl类之研究

WeblogAdminTemplatedWebControl类的源代码
//------------------------------------------------------------------------------
// <copyright company="Telligent Systems">
//     Copyright (c) Telligent Systems Corporation.  All rights reserved.
// </copyright> 
//------------------------------------------------------------------------------

using System;
using CommunityServer.Blogs.Controls;
using CommunityServer.Blogs.Components;
using CommunityServer.Components;
namespace CommunityServer.Blogs.Controls
{
    /**//// <summary>
    /// Provides access/security check to restrict only blog owners/admin from using the the current weblog
    /// </summary>
    public abstract class WeblogAdminTemplatedWebControl : WeblogTemplatedWebControl
    {
        public WeblogAdminTemplatedWebControl()
        {
          
        }

        /**//// <summary>
        /// Overrides Authorize and validates the current users has write access to this blogs content
        /// </summary>
        /// <param name="w"></param>
        protected override void Authorize(Weblog w)
        {
            base.Authorize (w);

            if(CurrentUser.IsAnonymous)
                throw new CSException(CSExceptionType.AccessDenied,"Anonymous Blog Posting Access");

            if(!CurrentUser.IsBlogAdministrator)
                Permissions.AccessCheck(w,Permission.Post,CurrentUser);
            
        }

    }
}

概述：
Provides access/security check to restrict only blog owners/admin from using the the current weblog
类图:
 

---

1. Authorize方法：

        /// <summary>
        /// Overrides Authorize and validates the current users has write access to this blogs content
        /// </summary>
        /// <param name="w"></param>
        protected override void Authorize(Weblog w)
        {
            base.Authorize (w);

            if(CurrentUser.IsAnonymous)
                throw new CSException(CSExceptionType.AccessDenied,"Anonymous Blog Posting Access");

            if(!CurrentUser.IsBlogAdministrator)
                Permissions.AccessCheck(w,Permission.Post,CurrentUser);
            
        }

程序操作步骤:
(1) 执行基类的一些验证
(2) 如果当前用户是匿名用户，抛出异常
(3) 如果当前用户不是管理员，验证当前用户是否有发帖的权限。

该方法用到了CSException类和Permission类和CSExceptionType枚举结构

---

该类的类图已经关联类图如下：