//[HttpPost]
        //public void Notification()
        //{
        //	//_connectorService.ProcessNotification();
        //}

        public ActionResult About()
        {
            string errorMsg   = null;
            var    fileSystem = new ShopConnectorFileSystem("Export");
            var    path       = fileSystem.GetFullFilePath(string.Concat("about-", Guid.NewGuid().ToString(), ".xml"));

            var publicKey       = Request.Headers[ShopConnectorCore.Header.PublicKey];
            var controllingData = ConnectionCache.ControllingData();
            var connection      = controllingData.Connections.FirstOrDefault(x => x.PublicKey == publicKey && x.IsForExport);

            using (var fileStream = new FileStream(path, FileMode.Create, FileAccess.Write))
                using (var writer = XmlWriter.Create(fileStream, ShopConnectorService.DefaultSettings))
                {
                    try
                    {
                        var model = _connectorService.CreateAboutModel(connection);

                        writer.WriteStartElement("Content");
                        writer.WriteElementString("AppVersion", model.AppVersion);
                        writer.WriteElementString("UtcTime", model.UtcTime.ToString("o"));
                        writer.WriteElementString("ConnectorVersion", model.ConnectorVersion);
                        writer.WriteElementString("StoreName", model.StoreName);
                        writer.WriteElementString("StoreUrl", model.StoreUrl);
                        writer.WriteElementString("StoreCount", model.StoreCount.ToString());
                        writer.WriteElementString("CompanyName", model.CompanyName);
                        writer.WriteElementString("StoreLogoUrl", model.StoreLogoUrl);
                        writer.WriteElementString("UpdatedProductsCount", model.UpdatedProductsCount.NaIfEmpty());

                        writer.WriteStartElement("Manufacturers");
                        foreach (var manu in model.AvailableManufacturers)
                        {
                            writer.WriteStartElement("Manufacturer");
                            writer.WriteElementString("Name", manu.Text);
                            writer.WriteElementString("Id", manu.Value);
                            writer.WriteEndElement(); // Manufacturer
                        }
                        writer.WriteEndElement();     // Manufacturers

                        writer.WriteStartElement("Categories");
                        foreach (var category in model.AvailableCategories)
                        {
                            writer.WriteStartElement("Category");
                            writer.WriteElementString("Name", category.Text);
                            writer.WriteElementString("Id", category.Value);
                            writer.WriteEndElement(); // Category
                        }
                        writer.WriteEndElement();     // Categories

                        writer.WriteEndElement();     // Content
                    }
                    catch (Exception ex)
                    {
                        errorMsg = ex.Message;
                    }
                }

            if (errorMsg.HasValue())
            {
                Response.AddHeader("Sm-ShopConnector-ErrorMessageShort", errorMsg);
            }
            if (connection != null)
            {
                Response.AddHeader("Sm-ShopConnector-RequestCount", connection.RequestCount.ToString());
                Response.AddHeader("Sm-ShopConnector-LastRequest", connection.LastRequestUtc.HasValue ? connection.LastRequestUtc.Value.ToString("o") : "");
                Response.AddHeader("Sm-ShopConnector-LastProductCall", connection.LastProductCallUtc.HasValue ? connection.LastProductCallUtc.Value.ToString("o") : "");
            }

            ShopConnectorFileSystem.CleanupDirectories();

            Response.BufferOutput = false; // !!
            var finalStream = new FileStream(path, FileMode.Open);

            return(new FileStreamResult(finalStream, MediaTypeNames.Text.Xml));
        }