Will Hendrix's AOPesque means for redirecting users without appropriate permissions from accessing forbidden content at Global.asax

protected override void Application_AuthenticateRequest (object sender, EventArgs e)
{
   var context = HttpContext.Current;
   var currentNode = SiteMap.CurrentNode;
   var resourceType = Path.GetExtension(context.Request.Url.AbsolutePath).Replace(".",
         string.Empty).ToLower();
   if (resourceType == "aspx" && currentNode != null && context.User != null)
   {
      if (currentNode.Roles.Count == 1 && (string.Compare("*",
            currentNode.Roles[0].ToString().Trim()) == 0))
      return;
      if (!currentNode.Roles.Cast<string>().Any(role => context.User.IsInRole(role)))
         FormsAuthentication.RedirectToLoginPage();
   }
}