mvc in Asp. net realizes jump function after timeout pop up window
- 2021-09-11 19:55:46
- OfStack
In order to maintain login status, cookie can be used to solve this 1 problem
Assuming that the expiration time is 30 minutes and the verification occurs on the server, with the help of a filter, you can write this
public class PowerFilter : AuthorizeAttribute
{
public override void OnAuthorization(AuthorizationContext filterContext)
{
var cookie = HttpContext.Current.Request.Cookies["loginInfo"];
if(null == cookie)
{
filterContext.Result = new RedirectResult("/admin/login/index");
}
else
{
cookie.Expires = DateTime.Now.AddMinutes(30);
HttpContext.Current.Response.Cookies.Remove("loginInfo");
HttpContext.Current.Response.Cookies.Add(cookie);
}
}
}
However, the page jumped directly, and there was no hint, which was not very friendly. It can be like this
public class PowerFilter : AuthorizeAttribute
{
public override void OnAuthorization(AuthorizationContext filterContext)
{
var cookie = HttpContext.Current.Request.Cookies["loginInfo"];
if(null == cookie)
{
filterContext.Result = new ContentResult()
{
Content = string
.Format("<script>alert(' Login timeout , Please log in again ');location.href='{0}'</script>","/admin/login/index")
};
}
else
{
cookie.Expires = DateTime.Now.AddMinutes(30);
HttpContext.Current.Response.Cookies.Remove("loginInfo");
HttpContext.Current.Response.Cookies.Add(cookie);
}
}
}
}
But what if it is an ajax request?
public class PowerFilter : AuthorizeAttribute
{
public override void OnAuthorization(AuthorizationContext filterContext)
{
var cookie = HttpContext.Current.Request.Cookies["loginInfo"];
if(null == cookie)
{
if(!filterContext.HttpContext.Request.IsAjaxRequest())
{
filterContext.Result = new ContentResult()
{
Content = string
.Format("<script>alert(' Login timeout , Please log in again ');location.href='{0}'</script>","/admin/login/index")
};
}
else
{
filterContext.Result = new JsonResult()
{
Data = new { logoff = true,logurl = "/admin/login/index" },
ContentType = null,
ContentEncoding = null,
JsonRequestBehavior = JsonRequestBehavior.AllowGet
};
}
}
else
{
cookie.Expires = DateTime.Now.AddMinutes(30);
HttpContext.Current.Response.Cookies.Remove("loginInfo");
HttpContext.Current.Response.Cookies.Add(cookie);
}
}
}