private string DecryptNotification(EncryptedOrderNotification notification)
{
string decryptedString = null;
byte[] inputBytes = Encoding.UTF8.GetBytes(configuration["OrderNotification:Key"]);
SHA1 sha1 = SHA1.Create();
byte[] key = sha1.ComputeHash(inputBytes);
StringBuilder hex = new StringBuilder(key.Length * 2);
foreach (byte b in key)
{
hex.AppendFormat("{0:x2}", b);
}
string secondPhaseKey = hex.ToString().Substring(0, 32);
ASCIIEncoding asciiEncoding = new ASCIIEncoding();
byte[] keyBytes = asciiEncoding.GetBytes(secondPhaseKey);
byte[] iv = Convert.FromBase64String(notification.iv);
using (RijndaelManaged rijndaelManaged = new RijndaelManaged
{
Key = keyBytes,
IV = iv,
Mode = CipherMode.CBC,
Padding = PaddingMode.PKCS7
})
using (Stream memoryStream = new MemoryStream(Convert.FromBase64String(notification.notification)))
using (CryptoStream cryptoStream = new CryptoStream(memoryStream, rijndaelManaged.CreateDecryptor(keyBytes, iv), CryptoStreamMode.Read))
{
decryptedString = new StreamReader(cryptoStream).ReadToEnd();
}
return(decryptedString);
}
public async Task PostOrder(EncryptedOrderNotification encryptedOrderNotification)
{
OrderNotification orderNotification;
try
{
string decryptedNotification = DecryptNotification(encryptedOrderNotification);
orderNotification = JsonSerializer.Deserialize <OrderNotification>(decryptedNotification, new JsonSerializerOptions
{
PropertyNameCaseInsensitive = true
});
}
catch (Exception)
{
// Log the exception
return;
}
if (orderNotification.TransactionType == null)
{
return;
}
if (orderNotification.TransactionType == "SALE" || orderNotification.TransactionType == "TEST_SALE")
{
// Id
if (orderNotification.Receipt == null)
{
return;
}
string id = orderNotification.Receipt;
// Do we have tracking codes?
if (orderNotification.TrackingCodes == null || orderNotification.TrackingCodes.Count() == 0)
{
return;
}
// Split the tracking codes into product id && customer id
string[] trackingCodes = orderNotification.TrackingCodes.ToArray()[0].Split('_');
// Get the product id
int productId = await unitOfWork.Products.Get(x => x.UrlId == trackingCodes[0], x => x.Id);
if (productId == 0)
{
return;
}
// Get the customer id
if (!await unitOfWork.Customers.Any(x => x.Id == trackingCodes[1]))
{
return;
}
string customerId = trackingCodes[1];
// Payment method
if (orderNotification.PaymentMethod == null)
{
return;
}
string paymentMethod = orderNotification.PaymentMethod;
if (orderNotification.LineItems == null || orderNotification.LineItems.Count() == 0)
{
return;
}
double subtotal = 0;
double tax = 0;
double discount = 0;
double shipping = 0;
foreach (LineItem lineItem in orderNotification.LineItems)
{
subtotal += lineItem.ProductPrice;
tax += lineItem.TaxAmount;
discount += lineItem.ProductDiscount;
shipping += lineItem.ShippingAmount;
OrderProduct orderProduct = new OrderProduct
{
OrderId = id,
Name = lineItem.ProductTitle,
Quantity = lineItem.Quantity,
Price = lineItem.ProductPrice,
LineItemType = lineItem.LineItemType,
RebillFrequency = lineItem.Recurring ? lineItem.PaymentPlan.RebillFrequency : null,
RebillAmount = lineItem.Recurring ? lineItem.PaymentPlan.RebillAmount : 0,
PaymentsRemaining = lineItem.Recurring ? lineItem.PaymentPlan.PaymentsRemaining : 0
};
unitOfWork.OrderProducts.Add(orderProduct);
}
ProductOrder productOrder = new ProductOrder
{
Id = id,
ProductId = productId,
CustomerId = customerId,
Date = DateTime.Now,
PaymentMethod = (int)Enum.Parse(typeof(PaymentMethod), paymentMethod),
Subtotal = subtotal,
ShippingHandling = shipping,
Discount = discount,
Tax = tax,
Total = orderNotification.TotalOrderAmount
};
unitOfWork.ProductOrders.Add(productOrder);
await unitOfWork.Save();
}
}
