public ActionResult GetLicense(Guid opvId)
        {
            var orderProductVariant = _orderService.GetOrderProductVariantByGuid(opvId);

            if (orderProductVariant == null)
            {
                return(RedirectToAction("Index", "Home"));
            }

            var order          = orderProductVariant.Order;
            var productVariant = orderProductVariant.ProductVariant;

            if (!_orderProcessingService.IsLicenseDownloadAllowed(orderProductVariant))
            {
                return(Content("Downloads are not allowed"));
            }

            if (_customerSettings.DownloadableProductsValidateUser)
            {
                if (_workContext.CurrentCustomer == null)
                {
                    return(new HttpUnauthorizedResult());
                }

                if (order.CustomerId != _workContext.CurrentCustomer.Id)
                {
                    return(Content("This is not your order"));
                }
            }

            var download = _downloadService.GetDownloadById(orderProductVariant.LicenseDownloadId.HasValue ? orderProductVariant.LicenseDownloadId.Value : 0);

            if (download == null)
            {
                return(Content("Download is not available any more."));
            }

            if (download.UseDownloadUrl)
            {
                //return result
                return(new RedirectResult(download.DownloadUrl));
            }
            else
            {
                if (download.DownloadBinary == null)
                {
                    return(Content("Download data is not available any more."));
                }

                string fileName = download.Filename ?? productVariant.Id.ToString();

                //return result
                return(new FileContentResult(download.DownloadBinary, download.ContentType)
                {
                    FileDownloadName = fileName + download.Extension
                });
            }
        }