// GET: Update/Download/7
public ActionResult Download(int?id)
{
if (id == null)
{
return(RedirectToAction("Index"));
}
if (!User.Identity.IsAuthenticated)
{
return(View("Error"));
}
string downloadLink = _updateRepository.GetDownloadLink(id.Value);
return(string.IsNullOrEmpty(downloadLink) ?
(ActionResult)View("Error") : Redirect(downloadLink));
}