ASP.NET-MVC-2 – How to process unauthorizedRequest in AJAX calls in ASP.NET MVC2

protected override void HandleUnauthorizedRequest(AuthorizationContext filterContext)
 {
 if (filterContext.RequestContext.HttpContext.Request.IsAjaxRequest())
 {
 JsonResult UnauthorizedResult = new JsonResult();
 UnauthorizedResult.Data = "{ request:'unauthorized' }";
 UnauthorizedResult.JsonRequestBehavior = JsonRequestBehavior.AllowGet;
 filterContext.Result = UnauthorizedResult; 
 }
 else
 {
 base.HandleUnauthorizedRequest(filterContext);
 }
 }

Brief:

I There is a subclass of AuthorizeAttribute in my frame, and I am doing custom authorization.

I am using jQuery from The normal asp.net mvc view rendering is switched to Ajax rendering. Therefore, each link in the application executes an ajax call to obtain data.

In order to meet this demand, I converted most of the page into partial View so that each ajax request only gets the part that needs to be updated on the page.

During the normal view rendering, when the request is not authorized, it will be redirected to the login described in web.config Page. After converting to Ajax, things are a bit different because I don’t want to use the markup of the login page in the ajax request, but want to have a structured response in it, so that I can perform the action accordingly in the ajax call.

In order to do this, I believe I have to override the HandleUnauthorizedRequest method in the AuthorizeAttribute class of the subclass and set filterContext.Result to the json result. But in the process of doing so, how can I distinguish unauthorized requests And the successful request, because from the perspective of the ajax call, both are successful responses; therefore will be processed in the success handler.

What is the correct way to deal with this problem?

I just figured it out, I can filter between normal requests and ajax requests in HandleUnauthorized
I rewritten in the AuthorizeAttribute subclass Request method. For ajax requests, I can create a json result or other content for this. For normal requests, it will still display the login page. The code is as follows:

 protected override void HandleUnauthorizedRequest(AuthorizationContext filterContext)
 {
 if (filterContext.RequestContext.HttpContext.Request.IsAjaxRequest())
 {
 JsonResult UnauthorizedResult = new JsonResult();
 UnauthorizedResult.Data = "{ request:'unauthorized' }";
 UnauthorizedResult.JsonRequestBehavior = JsonRequestBehavior.AllowGet;
 filterContext.Result = UnauthorizedResult;
 }
 else
 {
 base.HandleUnauthorizedRequest(filterContext);
 }
 }

I still won’t mark my issue as resolved, so if someone can suggest more Good way, I am still willing to accept suggestions.