public Optional <FIDBase> FindFid(FIDMeta meta)
{
FIDBase fidFound = null;
foreach (FIDBase fid in Fids)
{
if (fid.Children.Count == 0)
{
if (fid.Id == meta.Id && fid.SubId == meta.SubId)
{
fidFound = fid;
}
}
else
{
foreach (FIDBase fidChild in fid.Children)
{
if (fidChild.Id == meta.Id && fidChild.SubId == meta.SubId)
{
fidFound = fidChild;
}
}
}
}
if (fidFound != null)
{
return(Optional <FIDBase> .Create(fidFound));
}
else
{
return(Optional <FIDBase> .CreateEmpty());
}
}
private int DeserializeChildren(byte[] input, int pos)
{
bool breakLoop = false;
while (1 == 1)
{
char childSubId = (char)input[pos];
pos++;
int lastPos = Array.FindIndex(input, pos, (x) => x == 0x1E);
if (lastPos == -1)
{
lastPos = Array.FindIndex(input, pos, (x) => x == 0x1C);
if (lastPos == -1)
{
lastPos = input.Length;
}
breakLoop = true;
}
int valLength = lastPos - pos;
byte[] childValue = new byte[valLength];
Array.Copy(input, pos, childValue, 0, childValue.Length);
pos = pos + childValue.Length;
FIDBase child = new FIDBase(Id, childSubId, childValue);
Children.Add(child);
if (breakLoop)
{
return(pos);
}
pos++;//increment past delimeter
}
}
public ApproverResponseBase DoAuth(ApproverRequestBase requestIn)
{
bool isMagStripe;
EMVApproverRequest request = ((EMVApproverRequest)requestIn);
TLV cryptogram = request.EMV_Data.Children.Get(EMVTagsEnum.CRYPTOGRAM_INFORMATION_DATA_9F27_KRN.Tag);
if (cryptogram != null)
{
isMagStripe = false;
}
else
{
isMagStripe = true;
}
TransactionTypeEnum tt = (TransactionTypeEnum)Formatting.GetEnum(typeof(TransactionTypeEnum), request.EMV_Data.Children.Get(EMVTagsEnum.TRANSACTION_TYPE_9C_KRN.Tag).Value[0]);
TransactionBase np;
switch (tt)
{
case TransactionTypeEnum.PurchaseGoodsAndServices:
np = new F00_NormalPurchase();
break;
case TransactionTypeEnum.PurchaseWithCashback:
np = new F08_PurchaseWithCashBack();
break;
case TransactionTypeEnum.Refund:
np = new F12_MerchandiseReturnAdjustment();
break;
default:
throw new Exception("Unimplemented TransactionTypeEnum:" + tt);
}
np.SetHeaderValues(SPDHTransactionCode.NormalPurchase, SPDHMessageType.FinancialTransaction, SPDHMessageSubType.Online, DateTime.Now, "300047", "");
np.Fids.Add(new FID_B_Amount1(Formatting.ConvertToHexAscii(request.EMV_Data.Children.Get(EMVTagsEnum.AMOUNT_AUTHORISED_NUMERIC_9F02_KRN.Tag).Value)));
FIDBase fb_6 = new FIDBase('6', ' ', new byte[0]);
np.Fids.Add(fb_6);
if (tt == TransactionTypeEnum.PurchaseWithCashback || tt == TransactionTypeEnum.Refund)
{
np.Fids.Add(new FID_C_Amount2(Formatting.ConvertToHexAscii(request.EMV_Data.Children.Get(EMVTagsEnum.AMOUNT_OTHER_NUMERIC_9F03_KRN.Tag).Value)));
}
if (isMagStripe)
{
np.Fids.Add(new FID_q_Track2_Customer(Formatting.ConvertToHexAscii(request.EMV_Data.Children.Get(EMVTagsEnum.TRACK_2_DATA_9F6B_KRN2.Tag).Value)));
fb_6.Children.Add(new FID_6_I_TransactionCurrencyCode(Formatting.ConvertToHexAscii(request.EMV_Data.Children.Get(EMVTagsEnum.TRANSACTION_CURRENCY_CODE_5F2A_KRN.Tag).Value)));
fb_6.Children.Add(new FID_6_E_POSEntryMode(Formatting.ConvertToHexAscii(new byte[] { 0x91 })));
}
else
{
np.Fids.Add(new FID_q_Track2_Customer(Formatting.ConvertToHexAscii(request.EMV_Data.Children.Get(EMVTagsEnum.TRACK_2_EQUIVALENT_DATA_57_KRN.Tag).Value)));
fb_6.Children.Add(new FID_6_I_TransactionCurrencyCode(Formatting.ConvertToHexAscii(request.EMV_Data.Children.Get(EMVTagsEnum.TRANSACTION_CURRENCY_CODE_5F2A_KRN.Tag).Value)));
//fb_6.Children.Add(new FID_6_E_POSEntryMode(Formatting.ConvertToHexAscii(new byte[] { 0x07 })));
fb_6.Children.Add(new FID_6_E_POSEntryMode(Formatting.ASCIIStringToByteArray("051")));
}
if (!isMagStripe)
{
List <byte[]> fidBytes = new List <byte[]>();
byte[] smartCardScheme = new byte[] { 0x30, 0x31 };
fidBytes.Add(smartCardScheme);
fidBytes.Add(Formatting.ConvertToHexAscii(request.EMV_Data.Children.Get(EMVTagsEnum.CRYPTOGRAM_INFORMATION_DATA_9F27_KRN.Tag).Value));
fidBytes.Add(Formatting.ASCIIStringToByteArray(Formatting.ByteArrayToHexString(request.EMV_Data.Children.Get(EMVTagsEnum.TERMINAL_COUNTRY_CODE_9F1A_KRN.Tag).Value).Substring(1)));
fidBytes.Add(Formatting.ConvertToHexAscii(request.EMV_Data.Children.Get(EMVTagsEnum.TRANSACTION_DATE_9A_KRN.Tag).Value));
fidBytes.Add(Formatting.ConvertToHexAscii(request.EMV_Data.Children.Get(EMVTagsEnum.APPLICATION_CRYPTOGRAM_9F26_KRN.Tag).Value));
fidBytes.Add(Formatting.ConvertToHexAscii(request.EMV_Data.Children.Get(EMVTagsEnum.APPLICATION_INTERCHANGE_PROFILE_82_KRN.Tag).Value));
fidBytes.Add(Formatting.ConvertToHexAscii(request.EMV_Data.Children.Get(EMVTagsEnum.APPLICATION_TRANSACTION_COUNTER_ATC_9F36_KRN.Tag).Value));
fidBytes.Add(Formatting.ConvertToHexAscii(request.EMV_Data.Children.Get(EMVTagsEnum.UNPREDICTABLE_NUMBER_9F37_KRN.Tag).Value));
fidBytes.Add(Formatting.ConvertToHexAscii(request.EMV_Data.Children.Get(EMVTagsEnum.TERMINAL_VERIFICATION_RESULTS_95_KRN.Tag).Value));
fidBytes.Add(Formatting.ConvertToHexAscii(request.EMV_Data.Children.Get(EMVTagsEnum.TRANSACTION_TYPE_9C_KRN.Tag).Value));
fidBytes.Add(Formatting.ASCIIStringToByteArray(Formatting.ByteArrayToHexString(request.EMV_Data.Children.Get(EMVTagsEnum.TRANSACTION_CURRENCY_CODE_5F2A_KRN.Tag).Value).Substring(1)));
fidBytes.Add(Formatting.ConvertToHexAscii(request.EMV_Data.Children.Get(EMVTagsEnum.AMOUNT_AUTHORISED_NUMERIC_9F02_KRN.Tag).Value));
fidBytes.Add(Formatting.ConvertToHexAscii(request.EMV_Data.Children.Get(EMVTagsEnum.ISSUER_APPLICATION_DATA_9F10_KRN.Tag).Value));
fb_6.Children.Add(new FID_6_O_EMVRequestData(fidBytes.SelectMany(x => x).ToArray()));
fidBytes = new List <byte[]>();
fidBytes.Add(smartCardScheme);
fidBytes.Add(Formatting.ConvertToHexAscii(request.EMV_Data.Children.Get(EMVTagsEnum.APPLICATION_PRIMARY_ACCOUNT_NUMBER_PAN_SEQUENCE_NUMBER_5F34_KRN.Tag).Value));
fidBytes.Add(Formatting.ConvertToHexAscii(request.EMV_Data.Children.Get(EMVTagsEnum.TERMINAL_TYPE_9F35_KRN.Tag).Value));
fidBytes.Add(Formatting.ConvertToHexAscii(request.EMV_Data.Children.Get(EMVTagsEnum.CARDHOLDER_VERIFICATION_METHOD_CVM_RESULTS_9F34_KRN.Tag).Value));
fidBytes.Add(Formatting.ConvertToHexAscii(request.EMV_Data.Children.Get(EMVTagsEnum.APPLICATION_VERSION_NUMBER_TERMINAL_9F09_KRN.Tag).Value));
fidBytes.Add(Formatting.ConvertToHexAscii(request.EMV_Data.Children.Get(EMVTagsEnum.DEDICATED_FILE_DF_NAME_84_KRN.Tag).Value));
fb_6.Children.Add(new FID_6_P_EMVAdditionalRequestData(fidBytes.SelectMany(x => x).ToArray()));
}
Logger.Log(np.ToPrintString());
bool check = np.Validate();
byte[] received;
using (request.TCPClientStream)
{
request.TCPClientStream.Connect(host, port);
received = TCPIPManager.SendTransaction(request.TCPClientStream, np.Serialize());
}
int pos = 0;
TransactionBase fb;
switch (tt)
{
case TransactionTypeEnum.PurchaseGoodsAndServices:
fb = new F00_NormalPurchase();
break;
case TransactionTypeEnum.PurchaseWithCashback:
fb = new F08_PurchaseWithCashBack();
break;
case TransactionTypeEnum.Refund:
fb = new F12_MerchandiseReturnAdjustment();
break;
default:
throw new Exception("Unimplemented TransactionTypeEnum:" + tt);
}
pos = fb.Deserialize(received, pos);
Logger.Log(fb.ToPrintString());
FIDBase responseMessageFid = fb.FindFid(FidMetaList.ResponseDisplay).Get();
string responseMessage = Formatting.ByteArrayToASCIIString(responseMessageFid.Value);
bool responseCode;
int responseCodeAsNumber = Convert.ToInt32(Formatting.ByteArrayToASCIIString(fb.Header.GetValue(HeaderEntryEnum.ResponseCode)));
if (responseCodeAsNumber >= 0 && responseCodeAsNumber <= 10)
{
responseCode = true;
}
else
{
responseCode = false;
}
FIDBase responseMessage6QFid = fb.FindFid(FidMetaList.EMVResponseData).Get();
string responseMessage6Q = Formatting.ByteArrayToASCIIString(responseMessage6QFid.Value);
string smartCardSchemeResponse = responseMessage6Q.Substring(0, 2);
string authResponseCode = "";
string issuerAuthData;
if (smartCardSchemeResponse == "00") //schem 1
{
issuerAuthData = responseMessage6Q.Substring(2);
}
else //01 == schem 2
{
authResponseCode = responseMessage6Q.Substring(2, 2);
issuerAuthData = responseMessage6Q.Substring(4);
}
TLV authcodeTLV = null;
if (!String.IsNullOrEmpty(authResponseCode))
{
authcodeTLV = TLV.Create(EMVTagsEnum.AUTHORISATION_RESPONSE_CODE_8A_KRN.Tag, Formatting.ASCIIStringToByteArray(authResponseCode));
}
TLV issuerAuthDataTLV = TLV.Create(EMVTagsEnum.ISSUER_AUTHENTICATION_DATA_91_KRN.Tag, Formatting.HexStringToByteArray(issuerAuthData));
return(new EMVApproverResponse()
{
IsApproved = responseCode,
ResponseMessage = responseMessage,
AuthCode_8A = authcodeTLV,
IssuerAuthData_91 = issuerAuthDataTLV
});
}