public override CallbackInfo ProcessCallback(Order order, HttpRequest request, IDictionary <string, string> settings)
{
CallbackInfo callbackInfo = null;
try
{
order.MustNotBeNull("order");
request.MustNotBeNull("request");
settings.MustNotBeNull("settings");
settings.MustContainKey("SHAOUTPASSPHRASE", "settings");
//Write data when testing
if (settings.ContainsKey("TESTMODE") && settings["TESTMODE"] == "1")
{
LogRequest <Ogone>(request, logGetData: true);
}
Dictionary <string, string> inputFields = new Dictionary <string, string>();
string shaSign = request.QueryString["SHASIGN"];
string strAmount = request.QueryString["AMOUNT"];
string transaction = request.QueryString["PAYID"];
string status = request.QueryString["STATUS"];
string cardType = request.QueryString["BRAND"];
string cardNo = request.QueryString["CARDNO"];
foreach (string key in request.QueryString.Keys)
{
if (!key.Equals("SHASIGN"))
{
inputFields[key] = request.QueryString[key];
}
}
string strToHash = string.Join("", inputFields.OrderBy(i => i.Key)
.Where(i => !string.IsNullOrWhiteSpace(i.Value))
.Select(i => i.Key.ToUpperInvariant() + "=" + i.Value + settings["SHAOUTPASSPHRASE"]));
string digest = new SHA512Managed().ComputeHash(Encoding.UTF8.GetBytes(strToHash)).ToHex().ToUpperInvariant();
if (order.CartNumber == request.QueryString["ORDERID"] && digest.Equals(shaSign))
{
callbackInfo = new CallbackInfo(decimal.Parse(strAmount, CultureInfo.InvariantCulture), transaction, status == "5" || status == "51" ? PaymentState.Authorized : PaymentState.Captured, cardType, cardNo);
}
else
{
LoggingService.Instance.Warn <Ogone>("Ogone(" + order.CartNumber + ") - SHASIGN check isn't valid - Calculated digest: " + digest + " - Ogone SHASIGN: " + shaSign);
}
}
catch (Exception exp)
{
LoggingService.Instance.Error <Ogone>("Ogone(" + order.CartNumber + ") - Process callback", exp);
}
return(callbackInfo);
}