protected void Page_Load(object sender, EventArgs e)
{
PaycodeDbDataContext dc = new PaycodeDbDataContext();
dc.CreateDatabase();
dc.SubmitChanges();
}
public CardlessWithdrawalResponse AuthorizeTransaction(String IP, String TransactionID, string AccountNumber, string providerToken, String TransactionType, String SessionKey, decimal Amount)
{
var p = HttpContext.Current.Request.Headers;
PaycodeDbDataContext ctx = new PaycodeDbDataContext();
nLogger.Info("IP::: " + IP);
CardlessWithdrawalResponse res = null;
try
{
String IPs = ConfigurationManager.AppSettings["AllowedIPS"];
String[] allowedIPs = IPs.Split(new char[] { ';' });
CardlessWithdrawalTransaction rettransaction = ctx.CardlessWithdrawalTransactions.Where(pwmt => pwmt.AccountNumber == AccountNumber && pwmt.ProviderToken == providerToken).FirstOrDefault();
CardlessWithdrawalAuthorisationRequestLog plog = new CardlessWithdrawalAuthorisationRequestLog()
{
AccountNumber = AccountNumber,
Amount = Amount,
RequestDate = DateTime.Now,
ISW_IP = IP,
TransactionID = TransactionID,
TransactionType = TransactionType,
ProviderToken = providerToken,
IsValid = false,
ResponseMessage = ""
};
ctx.CardlessWithdrawalAuthorisationRequestLogs.InsertOnSubmit(plog);
ctx.SubmitChanges();
if (!allowedIPs.Contains(IP))
{
res = new CardlessWithdrawalResponse()
{
ResponseCode = "06", ResponseDescription = "Security Check Failed"
};
}
else
if (rettransaction == null)
{
res = new CardlessWithdrawalResponse()
{
ResponseCode = "12", ResponseDescription = "Account Number/ Provider Token is not valid"
};
}
else
{
String signatureMethod = "SHA1";
String CypherKey = String.Format("{0}|{1}|{2}", rettransaction.AccountNumber, rettransaction.ProviderToken, rettransaction.TransactionType);
MessageDigest messageDigest = MessageDigest
.GetInstance(signatureMethod);
byte[] signatureBytes = messageDigest
.Digest(Encoding.UTF8.GetBytes(CypherKey)); // encode signature as base 64
String signature = Convert.ToBase64String(signatureBytes);
if (signature.Equals(SessionKey))
{
using (TransactionScope scope = new TransactionScope())
{
//Check if Token is valid
if (rettransaction == null)
{
res = new CardlessWithdrawalResponse()
{
ResponseCode = "11", ResponseDescription = "Authorization Token is not Valid"
};
}
else
if (rettransaction.ExpiryDate < DateTime.Now || rettransaction.IsExpired == true)
{
//Check Token Expiry
res = new CardlessWithdrawalResponse()
{
ResponseCode = "12", ResponseDescription = "Token has Expired"
};
}
else if (rettransaction.IsTokenUsed == true)
{
res = new CardlessWithdrawalResponse()
{
ResponseCode = "12", ResponseDescription = "Token has already been used "
};
}
else if (rettransaction.IsCanceled == true)
{
res = new CardlessWithdrawalResponse()
{
ResponseCode = "12", ResponseDescription = "Token has been cancelled"
};
}
else
if (rettransaction.TransactionAmount == rettransaction.AmountAuthorized)
{
res = new CardlessWithdrawalResponse()
{
ResponseCode = "12", ResponseDescription = "Token has already been used "
};
}
else if (Amount > (rettransaction.TransactionAmount - rettransaction.AmountAuthorized))
{
res = new CardlessWithdrawalResponse()
{
ResponseCode = "13", ResponseDescription = "Invalid Amount"
};
}
else
{
if (ctx.CardlessWithdrawalAuthorisations.Where(pwm => pwm.TransactionID == TransactionID).Any())
{
res = new CardlessWithdrawalResponse()
{
ResponseCode = "26", ResponseDescription = "Transaction ID already used"
};
}
else
{
String resp = TransferFund(rettransaction.AccountNumber, ConfigurationManager.AppSettings["ISWPayableAccount"], Amount, "Cardless Withdrawal Transaction", plog);
nLogger.Info("Funds Transfer " + resp);
if ("00".Equals(resp))
{
CardlessWithdrawalAuthorisation pauthorisation = new CardlessWithdrawalAuthorisation()
{
AccountNumber = rettransaction.AccountNumber,
Amount = plog.Amount,
AuthorisationDate = DateTime.Now,
ISW_IP = IP,
CardlessWithdrawalTransactionID = rettransaction.ID,
TransactionID = TransactionID,
TransactionType = TransactionType,
IsReversed = false,
FinacleResponse = plog.FinacleResponse,
FinacleStan = plog.FinacleStan,
FinacleTransactionDateTime = plog.FinacleTransactionDateTime
};
ctx.CardlessWithdrawalAuthorisations.InsertOnSubmit(pauthorisation);
ctx.SubmitChanges();
rettransaction.TokenUsageCount = rettransaction.TokenUsageCount + 1;
rettransaction.AmountAuthorized = rettransaction.AmountAuthorized + pauthorisation.Amount;
ctx.SubmitChanges();
if (rettransaction.TransactionAmount == rettransaction.AmountAuthorized)
{
rettransaction.IsTokenUsed = true;
}
//Token can only be used once according to ISW new requirement
rettransaction.IsTokenUsed = true;
ctx.SubmitChanges();
plog.IsValid = true;
scope.Complete();
//PaymentAuthorisation
res = new CardlessWithdrawalResponse()
{
ResponseCode = "00", ResponseDescription = "Authorized"
};
}
else
{
res = new CardlessWithdrawalResponse()
{
ResponseCode = "06", ResponseDescription = "Transaction Failed"
};
}
}
}
//10041
}
}
else
{
// nLogger.Info("Security Check Failed");
res = new CardlessWithdrawalResponse()
{
ResponseCode = "06", ResponseDescription = "Security Check Failed"
};
//Security Check Failed
}
}
plog.ResponseMessage = res.ResponseCode + "|" + res.ResponseDescription;
ctx.SubmitChanges();
}
catch (Exception ex)
{
nLogger.Error(ex);
res = new CardlessWithdrawalResponse()
{
ResponseCode = "06", ResponseDescription = "An unknown error has occured"
};
}
return(res);
//return System.Guid.NewGuid().ToString().Substring(0, 10);
}
