Session Expire Filter Attribute

SessionExpireFilterAttribute.cs

namespace Granite.Web.Services
{
  using System.Web;
  using System.Web.Mvc;

  public class SessionExpireFilterAttribute : ActionFilterAttribute
  {
    public override void OnActionExecuting(ActionExecutingContext filterContext)
    {
      HttpContextBase httpContext = filterContext.HttpContext;

      if (httpContext.Session != null)
      {
        if (httpContext.Session.IsNewSession)
        {
          // jezeli zostala utworzona nowa sesja, ale istnieja stare ciasteczka to oznacza to, ze mamy timeout
          string sessionCookie = httpContext.Request.Headers["Cookie"];
          if ((sessionCookie != null) && (sessionCookie.IndexOf("ASP.NET_SessionId", System.StringComparison.Ordinal) >= 0))
          {
            filterContext.Result = new RedirectToRouteResult("Error", null);
          }
        }
      }

      base.OnActionExecuting(filterContext);
    }
  }