public async Task <ContentResult> PaymentAccept(string encoded, string checksum)
{
var infoStatus = "";
var ePayQueryDataAsString = Encoding.UTF8.GetString(Convert.FromBase64String(encoded)); //ex. INVOICE=00050:STATUS=PAID:PAY_TIME=20171204163636:STAN=058030:BCODE=058030
var ePayQueryData = ePayQueryDataAsString.Split(new[] { '\n' }, StringSplitOptions.RemoveEmptyEntries);
foreach (var ePayTransaction in ePayQueryData)
{
if (checksum != ePayHelpers.HMAC_SHA1_Encoding(encoded))
{
return(Content($"INVOICE={ePayQueryDataAsString[1]}:STATUS=ERR\n")); //"ERR=Not valid CHECKSUM\n", "plain/text"
}
if (RegexExtentions.preg_match(@"^INVOICE=(\d+):STATUS=(PAID|DENIED|EXPIRED)(:PAY_TIME=(\d+):STAN=(\d+):BCODE=([0-9a-zA-Z]+))?$", ePayTransaction, out var ePayQueryDataProperties))
{
ePayRecieveViewModel paymentData = new ePayRecieveViewModel()
{
Invoice = int.Parse(ePayQueryDataProperties[1]),
Status = ePayQueryDataProperties[2],
PayDate = ePayQueryDataProperties[4],
Stan = ePayQueryDataProperties[5],
BankCode = ePayQueryDataProperties[6]
};
switch (paymentData.Status)
{
case "PAID":
try // if invoice with this id is not found
{
await invoicesManager.UpdateInvoiceOnNotification(paymentData);
infoStatus = $"INVOICE={paymentData.Invoice}:STATUS=OK\n";
await paymentsManager.AcceptPayment(paymentData.Invoice);
}
catch (ContentNotFoundException)
{
infoStatus = $"INVOICE={paymentData.Invoice}:STATUS=NO\n";
}
catch (Exception)
{
infoStatus = $"INVOICE={paymentData.Invoice}:STATUS=ERR\n";
}
//Increase the balance of the user
break;
case "DENIED":
case "EXPIRED":
try // if invoice with this id is not found
{
await invoicesManager.UpdateInvoiceOnNotification(paymentData);
infoStatus = $"INVOICE={paymentData.Invoice}:STATUS=OK\n";
}
catch (ContentNotFoundException)
{
infoStatus = $"INVOICE={paymentData.Invoice}:STATUS=NO\n";
}
break;
default:
infoStatus = $"INVOICE={paymentData.Invoice}:STATUS=ERR\n";
break;
}
}
else
{
infoStatus = "The RegularExpression Does not Match the entry";
}
}
return(Content(infoStatus, "plain/text"));
}