User Input validation using filter in MVC ( OnAuthorization and OnActionExecuting filter methods)

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Hi All,

In MVC , how do we access user entry in the filters(OnAuthorization and OnActionExecuting) methods

. My requirements are

1. Need to validate credential(form authentication) in my Custom Authorization filter
2. Need to do some kind of validation on the input values in OnActionExecuting filter

Thanks
Naufal.

Posted 28-Jan-14 22:04pm

Naufel Basheer

Updated 28-Jan-14 22:07pm

v2

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2 solutions

Solution 1

C#

public sealed class CustomCheckAttribute : ActionFilterAttribute
    {
        public override void OnActionExecuting(ActionExecutingContext filterContext)
        {
            var request = filterContext.HttpContext.Request;
            var response = filterContext.HttpContext.Response;
            //validation goes here
            if (request["LoginId"] != null)
            { 
                ...
            }
        }
    }

and for Authorization try this http://stackoverflow.com/questions/9366085/why-is-onauthorization-executing-before-authentication[^]

Posted 29-Jan-14 0:46am

SP HINGU

Updated 29-Jan-14 0:48am

v2

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Naufel Basheer · Accepted Answer · 2014-01-29T18:42:00

Above solution works fine on OnAuthorization too...

public class CustomAuthorizationAttribute : FilterAttribute, IAuthorizationFilter
{
void IAuthorizationFilter.OnAuthorization(AuthorizationContext filterContext)
{
var request = filterContext.HttpContext.Request;
string userName = request["txtName"];

filterContext.Controller.ViewBag.OnAuthorization = "IAuthorizationFilter.OnAuthorization filter called";
}
}