一个基于Asp.Net MVC的权限方案

using System.Collections.Generic;
using System.Web.Mvc;
using Madnet.Model.MadAdmin;
using Madnet.BLL.MadAdmin;

namespace Madnet.Controllers.MadAdmin
{
public class SupportFilterAttribute : ActionFilterAttribute
{
private bool _IsLogin = true;
/// <summary>
/// 是否需要登录
/// </summary>
public bool IsLogin
{
set
{
_IsLogin = value;
}
get
{
if (System.Configuration.ConfigurationManager.AppSettings["IsLogin"] != null)
{
bool.TryParse(System.Configuration.ConfigurationManager.AppSettings["IsLogin"].ToString(), out _IsLogin);
}
return _IsLogin;
}
}
public override void OnActionExecuting(ActionExecutingContext filterContext)
{
string controllerName = (string)filterContext.RouteData.Values["controller"];
string actionName = (string)filterContext.RouteData.Values["action"];

if (IsLogin && filterContext.HttpContext.Session["Login_User"] == null)
{
filterContext.HttpContext.Response.Redirect(new UrlHelper(filterContext.RequestContext).Action("Login", "Default"));
filterContext.Result = new EmptyResult();
}
else if (IsLogin && filterContext.HttpContext.Session["Login_User"] != null)
{
Mad_User user = filterContext.HttpContext.Session["Login_User"] as Mad_User;
if (!user.is_super)
{
if (!GetPopedom(user).Exists(p => p.Controller_Name == controllerName.ToLower() && p.Action_Name == actionName.ToLower()))
{
filterContext.HttpContext.Response.Write("没有权限");
filterContext.Result = new EmptyResult();
}

}
}

}
/// <summary>
/// 获取当前用户所有有权限执行的动作
/// </summary>
/// <returns></returns>
public List<Atmodel> GetPopedom(Mad_User user)
{
List<Atmodel> ats = new List<Atmodel>();
List<Mad_Popedom> pops = Mad_PopedomBLL.GetPopedombyUser(user.user_id);
foreach (Mad_Popedom pop in pops)
{
ats.Add(new AtModel() { Controller_Name = pop.Control, Action_Name = pop.Action });
}
return ats;
}

}
}