How to return javascript in mvc when I click the button to jump from one page to another and cookie overtime?

Question

When user log in my web,I set the cookie's timeout to be 30 min,after timeout,when user want to go to page B from page A,I will check the cookie time out and return the javascript to the brower,what's wrong with my codes?It seems that I return the content because all the codes below will display in the browser but not execute(and I have to refresh the url and is OK).

Method 1:not work

  public override void OnAuthorization(AuthorizationContext filterContext)
   {
      var url = string.Format("{0}?ReturnUrl={1}",
                FormsAuthentication.LoginUrl,
                filterContext.HttpContext.Request.RawUrl);
      if (SessionHelper.Get("UserName") == null)
      filterContext.HttpContext.Response.Write(
       "<script>alert('Login overtime!Loggin again please!');
       window.location.href='"+url +"';</script>");
   }

Method 2:not work

  public override void OnAuthorization(AuthorizationContext filterContext)
   {
      var url = string.Format("{0}?ReturnUrl={1}",
                FormsAuthentication.LoginUrl,
                filterContext.HttpContext.Request.RawUrl);
      if (SessionHelper.Get("UserName") == null)
       filterContext.Result = new ContentResult
        {
         ContentType = "text/html",
         Content = "<script>alert('Login overtime!Loggin again please!');
        window.location.href='" + url + "';<script>"
        };
     }

Why dont you just use RedirectResult instead of ContentResult? You could pass over the reason as a tempdata. — heymega
– heymega, Commented Feb 26, 2014 at 15:51
Thanks,Before redirect the url,I want the alert the overtime message.How could I alert the tempdata in OnAuthorization function?Every page I have to verify,I can not pass tempdata in all page or all controller. — Lyly
– Lyly, Commented Feb 26, 2014 at 15:54

heymega · Accepted Answer · 2014-02-26 16:07:45Z

1

public override void OnAuthorization(AuthorizationContext filterContext)
    {
        if (SessionHelper.Get("UserName") == null)
        {

            filterContext.Controller.TempData.Add("RedirectReason", "Login overtime!Loggin again please!");
            filterContext.Result = new RedirectResult("~/Login");

        }
    }

Then add this to your view...

@TempData["RedirectReason"]

and the error will be displayed on your login form.

Hope this helps!

answered Feb 26, 2014 at 16:07

heymega

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Comments

Surya Deepak · Accepted Answer · 2014-03-03 13:57:28Z

0

we should not return javascript alerts..instead see what the error code you are getting when you make a service call after the cookie timesout. based on that, add the below to your master page

$.ajaxSetup({
            statusCode: {
                407: function () {
                  //your redirection code here
                 window.location.reload();
                }
            },


        });

//do not use 407 in your code..see what code u get,then replace 407 with ur status code

answered Mar 3, 2014 at 13:57

Surya Deepak

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