2016-07-26 243 views
0

我有一个自定义身份验证设置,以便用户存储为会话变量。一旦他们去通过账户/登录过程中,我在会话中存储从第三方API返回用户的细节是这样的:MVC中的自定义身份验证

Session["User"] = new UserViewModel(result); 

我要检查用户出现之前,每个控制器动作,所以我有做在它下面的检查一个BaseController:

protected override void OnActionExecuting(ActionExecutingContext filterContext) 
{ 
    if (Session["User"] != null) 
    base.OnActionExecuting(filterContext); 
    else 
    filterContext.Result = new RedirectToRouteResult(new System.Web.Routing.RouteValueDictionary(new { action = "LogIn", controller = "Account" })); 

每个控制器然后从BaseController继承,以便它重定向到登录页面,如果没有用户。我不从AccountController的BaseController继承,这样它就不会进入无限循环的检查和重定向,但我也想让特定的页面不检查登录。有没有办法做到这一点,即以与[AllowAnonymous]相同的方式编写例外规则?

+0

为什么不创建一个自定义的授权属性,并将其仅应用于要执行此检查的控制器? – Alex

+0

覆盖授权属性而不是ActionFilters –

回答

0

你可以在这些方法为使用过滤器:

[AttributeUsage(AttributeTargets.Class | AttributeTargets.Method, Inherited = true, AllowMultiple = false)] 
public class ActionCheckAttribute : ActionFilterAttribute 
{ 
    public override void OnActionExecuting(ActionExecutingContext filterContext) 
    { 
     string controllerName = filterContext.ActionDescriptor.ControllerDescriptor.ControllerName.ToLower().Trim(); 
     string actionName = filterContext.ActionDescriptor.ActionName.ToLower().Trim(); 

     // this is just a sample.. you can implement any logic you want 
     if (!actionName.StartsWith("your method name") && !controllerName.StartsWith("your controller name")) 
     { 
      var session1 = HttpContext.Current.User.Identity.Name; 
      HttpContext ctx = HttpContext.Current; 
      //Redirects user to login screen if session has timed out 
      if (session1 == null) 
      { 
       base.OnActionExecuting(filterContext); 

       filterContext.Result = new RedirectToRouteResult(new RouteValueDictionary(new 
       { 
        controller = "Account", 
        action = "LogOff" 
       })); 
      } 
     } 

    } 
} 

然后控制器把属性为:

[ActionCheck] 
public class MyController : Controller 
{ 
    public ActionResult Index() 
    { 
     return View(); 
    } 
} 

,或对具体的操作方法为:

[ActionCheck] 
public Actionresult SomeMethod() 
{ 
    return View(); 
}