private void writeRecvTag(byte[] dest, int index, RecvTag tag, byte[] value) {
// Check Validity
int maxSize = tag.valueSize;
int copySize = value.length;
if (copySize > maxSize) {
throw new IllegalArgumentException(
"Error Copy Tag " + tag + " for the value " + NumUtil.toHexString(value));
}
// Do Copy
System.arraycopy(value, 0, dest, index, copySize);
}
/**
* 9F02 - 06 : amount authorized 9F03 - 06 : amount other 9F1A - 02 : terminal country code 95 -
* 05 : terminal verification results 5F2A - 02 : transactin country code 9A - 03 : transaction
* date 9C - 03 : transaction Type 9F37 - 04 : unpredictable number 9F66 - 04 : Terminal
* Transaction Qualifiers 9F7A - 01 : VLP Terminal Support Indicator
*
* @return
*/
public byte[] generatePdolRequestData() {
byte[] result = null;
if (this.pdol != null) {
ArrayList<RecvTag> parsedPdol = TLVParser.parseDataObjectList(this.pdol);
int pdolSize = 0;
for (RecvTag recvTag : parsedPdol) {
pdolSize += recvTag.valueSize;
}
// Create result
byte[] dest = new byte[pdolSize];
int index = 0;
for (RecvTag tag : parsedPdol) {
System.out.println("generatePdolRequestData ===> Request " + tag);
// Copy Key
String key = tag.getKeyHex2String();
// http://www.eftlab.co.uk/index.php/site-map/knowledge-base/145-emv-nfc-tags
// PDOL (4 + 6 + 6 + 2 + 5 + 2 + 3 + 1 + 4)
// 80 A8 00 00 23 83 ==> 21
//
if ("9F66".equals(key)) {
// 9F66 Terminal transaction Qualifiers 4 octets
// binary 32
// 32 00 00 00
writeRecvTag(dest, index, tag, "32 00 00 00");
} else if ("9F02".equals(key)) {
// 9F02 Amount, Authorized (Numeric) 6 octets
// n 12 ==> 00 00 00 01 00 00
// 00 00 00 00 00 00
} else if ("9F03".equals(key)) {
// 9F03 Amount, Other (Numeric) 6 octets
// n 12 ==> Always '00 00 00 00 00 00'
// 00 00 00 00 00 00
} else if ("9F1A".equals(key)) {
// 9F1A Terminal Country Code 2 octets
// n 3 ==> Indicates the country of the terminal, represented according to ISO 3166-1
// 02 50
writeRecvTag(dest, index, tag, "02 50");
} else if ("9505".equals(key)) {
// 9505 Terminal Verification Results 5 octets
// 00 00 00 00 00
} else if ("5F2A".equals(key)) {
// 5F2A Transaction Currency Code 2 octets
// n 3 ==> Indicates the currency code of the transaction according to ISO 4217 ==> 0978
// 09 78
writeRecvTag(dest, index, tag, "09 78");
} else if ("9A".equals(key)) {
// 9A Transaction Date 3 octets
// n 6 (YYMMDD) ==> Local date that the transaction was authorised
// 12 12 31
// TODO Calendar now = Calendar.getInstance();
writeRecvTag(dest, index, tag, "12 12 31");
} else if ("9C".equals(key)) {
// 9C Transaction Type 1 octet
// n 2 ==> Always '00'
// indicates the type of financial transaction, represented by the first two digits of the
// ISO 8583:1993 Processing Code. The actual values to be used for the Transaction Type
// data element are defined by the relevant payment system.
// 00
} else if ("9F37".equals(key)) {
// 9F37 Unpredictable Number 4 octets
// binary ==> Value to provide variability and uniqueness to the generation of a
// cryptogram
// E4 EC 9E 52 00
writeRecvTag(dest, index, tag, "E4 EC 9E 52");
}
// Copy Values
// Rest 00
index += tag.valueSize;
System.out.println(
"generatePdolRequestData ===> Request "
+ NumUtil.toHexString(dest)
+ " : Size of "
+ dest.length
+ " ==> hex 0x"
+ NumUtil.toHexString(new byte[] {(byte) dest.length}));
}
// Check Total Size
if (index != dest.length) {
throw new RuntimeException("Bad PDOL value Size");
}
result = dest;
}
return result;
}