243 lines
8.6 KiB
Java
243 lines
8.6 KiB
Java
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// uniCenta oPOS - Touch Friendly Point Of Sale
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// Copyright (c) 2009-2018 uniCenta
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// https://unicenta.com
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//
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// This file is part of uniCenta oPOS
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//
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// uniCenta oPOS is free software: you can redistribute it and/or modify
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// it under the terms of the GNU General Public License as published by
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// the Free Software Foundation, either version 3 of the License, or
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// (at your option) any later version.
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//
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// uniCenta oPOS is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU General Public License for more details.
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//
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// You should have received a copy of the GNU General Public License
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// along with uniCenta oPOS. If not, see <http://www.gnu.org/licenses/>.
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package com.unicenta.pos.payment;
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import com.unicenta.pos.util.LuhnAlgorithm;
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import com.unicenta.pos.util.StringUtils;
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import java.util.ArrayList;
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import java.util.List;
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public class MagCardReaderGeneric implements MagCardReader {
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private String m_sHolderName;
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private String m_sCardNumber;
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private String m_sExpirationDate;
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private StringBuffer track1;
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private StringBuffer track2;
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private StringBuffer track3;
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private static final int READING_STARTSENTINEL1 = 0;
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private static final int READING_STARTSENTINEL2 = 1;
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private static final int READING_STARTSENTINEL3 = 2;
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private static final int READING_CARDTYPE = 3;
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private static final int READING_TRACK1 = 4;
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private static final int READING_TRACK2 = 5;
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private static final int READING_TRACK3 = 6;
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private static final int READING_END = 7;
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private int m_iAutomState;
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private List m_aTrack1;
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private List m_aTrack2;
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private List m_aTrack3;
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private StringBuffer m_sField;
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private char m_cCardType;
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private String m_encryptedCardData;
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private String m_encryptionKey;
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/**
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* Creates a new instance of GenericMagCardReader
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*/
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public MagCardReaderGeneric() {
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reset();
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}
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public String getReaderName() {
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return "Generic magnetic card reader";
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}
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public void reset() {
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m_aTrack1 = null;
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m_aTrack2 = null;
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m_aTrack3 = null;
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m_sField = null;
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m_cCardType = ' ';
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m_sHolderName = null;
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m_sCardNumber = null;
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m_sExpirationDate = null;
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m_encryptedCardData = null;
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m_encryptionKey = null;
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m_iAutomState = READING_STARTSENTINEL1;
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}
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public void appendChar(char c) {
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// Mastercard
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// %B1111222233334444^PUBLIC/JOHN?;1111222233334444=99121010000000000000?
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// *---------------- ----------- ----***
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// Visa
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// %B1111222233334444^PUBLIC/JOHN^9912101xxxxxxxxxxxxx?;1111222233334444=9912101xxxxxxxxxxxxx?
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// *---------------- ----------- ---- ***
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if (c == '%') { // && READING_STARTSENTINEL1;
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track1 = new StringBuffer();
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track2 = new StringBuffer();
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track3 = new StringBuffer();
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m_aTrack1 = new ArrayList();
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m_aTrack2 = null;
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m_aTrack3 = null;
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m_sField = new StringBuffer();
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m_cCardType = ' ';
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m_sHolderName = null;
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m_sCardNumber = null;
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m_sExpirationDate = null;
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m_iAutomState = READING_CARDTYPE;
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} else if (m_iAutomState == READING_CARDTYPE) {
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m_cCardType = c;
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m_iAutomState = READING_TRACK1;
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} else if (c == ';' && m_iAutomState == READING_STARTSENTINEL2) {
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m_aTrack2 = new ArrayList();
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m_sField = new StringBuffer();
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m_iAutomState = READING_TRACK2;
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} else if (c == ';' && m_iAutomState == READING_STARTSENTINEL3) {
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m_aTrack3 = new ArrayList();
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m_sField = new StringBuffer();
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m_iAutomState = READING_TRACK3;
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} else if (c == '^' && m_iAutomState == READING_TRACK1) {
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m_aTrack1.add(m_sField.toString());
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m_sField = new StringBuffer();
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} else if (c == '=' && m_iAutomState == READING_TRACK2) {
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m_aTrack2.add(m_sField.toString());
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m_sField = new StringBuffer();
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} else if (c == '=' && m_iAutomState == READING_TRACK3) {
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m_aTrack3.add(m_sField.toString());
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m_sField = new StringBuffer();
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} else if (c == '?' && m_iAutomState == READING_TRACK1) {
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m_aTrack1.add(m_sField.toString());
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m_sField = null;
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m_iAutomState = READING_STARTSENTINEL2;
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} else if (c == '?' && m_iAutomState == READING_TRACK2) {
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m_aTrack2.add(m_sField.toString());
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m_sField = null;
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m_iAutomState = READING_STARTSENTINEL3;
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checkTracks(); // aqui ya chequeamos los paramentros que leemos...
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} else if (c == '?' && m_iAutomState == READING_TRACK3) {
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m_aTrack3.add(m_sField.toString());
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m_sField = null;
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m_iAutomState = READING_END;
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} else if (m_iAutomState == READING_TRACK1 || m_iAutomState == READING_TRACK2 || m_iAutomState == READING_TRACK3) {
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m_sField.append(c);
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}
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if (m_iAutomState == READING_CARDTYPE || m_iAutomState == READING_TRACK1 || m_iAutomState == READING_STARTSENTINEL2) {
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track1.append(c);
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} else if (m_iAutomState == READING_TRACK2 || m_iAutomState == READING_STARTSENTINEL3) {
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track2.append(c);
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} else if (m_iAutomState == READING_TRACK3 || m_iAutomState == READING_END) {
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track3.append(c);
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}
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}
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private void checkTracks() {
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// Test del tipo de tarjeta
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if (m_cCardType != 'B') {
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return;
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}
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// Lectura de los valores
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String sCardNumber1 = (m_aTrack1 == null || m_aTrack1.size() < 1) ? null : (String) m_aTrack1.get(0);
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String sCardNumber2 = (m_aTrack2 == null || m_aTrack2.size() < 1) ? null : (String) m_aTrack2.get(0);
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String sHolderName = (m_aTrack1 == null || m_aTrack1.size() < 2) ? null : (String) m_aTrack1.get(1);
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String sExpDate1 = (m_aTrack1 == null || m_aTrack1.size() < 3) ? null : ((String) m_aTrack1.get(2)).substring(0, 4);
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String sExpDate2 = (m_aTrack2 == null || m_aTrack2.size() < 2) ? null : ((String) m_aTrack2.get(1)).substring(0, 4);
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// Test del numero de tarjeta
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if (!checkCardNumber(sCardNumber1) || (sCardNumber2 != null && !sCardNumber1.equals(sCardNumber2))) {
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return;
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}
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// Test del nombre del propietario
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if (sHolderName == null) {
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return;
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}
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// Test de la fecha de expiracion
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if ((sExpDate1 != null || !checkExpDate(sExpDate2)) && (!checkExpDate(sExpDate1) || !sExpDate1.equals(sExpDate2))) {
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return;
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}
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m_sCardNumber = sCardNumber1;
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m_sHolderName = formatHolderName(sHolderName);
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String yymm = sExpDate1 == null ? sExpDate2 : sExpDate1;
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m_sExpirationDate = yymm.substring(2, 4) + yymm.substring(0, 2); //MMYY format
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}
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private boolean checkCardNumber(String sNumber) {
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return LuhnAlgorithm.checkCC(sNumber);
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}
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private boolean checkExpDate(String sDate) {
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return ( sDate.length()==4 && StringUtils.isNumber(sDate.trim()) );
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}
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private String formatHolderName(String sName) {
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int iPos = sName.indexOf('/');
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if (iPos >= 0) {
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return sName.substring(iPos + 1).trim() + ' ' + sName.substring(0, iPos);
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} else {
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return sName.trim();
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}
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}
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public boolean isComplete() {
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return m_sCardNumber != null;
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}
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public String getHolderName() {
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return m_sHolderName;
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}
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public String getCardNumber() {
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return m_sCardNumber;
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}
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public String getExpirationDate() {
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return m_sExpirationDate;
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}
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public String getTrack1() {
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return track1 == null ? null : track1.toString();
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}
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public String getTrack2() {
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return track2 == null ? null : track2.toString();
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}
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public String getTrack3() {
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return track3 == null ? null : track3.toString();
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}
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public String getEncryptedCardData() {
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return "".equals(m_encryptedCardData) ? null : m_encryptedCardData;
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}
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public String getEncryptionKey() {
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return "".equals(m_encryptionKey) ? null : m_encryptionKey;
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}
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}
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