com.CardPaymentGateway.GatewayAirtimeTopUp.java Source code

Introduction

Here is the source code for com.CardPaymentGateway.GatewayAirtimeTopUp.java

Source

/*
 * To change this license header, choose License Headers in Project Properties.
 * To change this template file, choose Tools | Templates
 * and open the template in the editor.
 */
package com.CardPaymentGateway;

import com.MainFiles.Functions;
import java.security.MessageDigest;
import java.security.NoSuchAlgorithmException;
import java.util.logging.Level;
import java.util.logging.Logger;
import org.json.JSONObject;
import sun.misc.BASE64Encoder;

/**
 *
 * @author Simon Maingi
 */
public class GatewayAirtimeTopUp {

    String strCardNumber = "";
    String strDeviceid = "";
    String strExpiryDate = "";
    String strAccountNumber = "";
    String strResponse = "";
    String strAgentID = "";
    String strAmount = "";
    double amount;
    String strTrack2Data = "";
    String strAgencyCashManagement = "";
    String[] strCardInformation;
    String[] strReceivedData;
    String strPhoneNumber = "";
    String strRefNo = "";
    String strProcessingCode = "";
    String strpin = "";
    String strBillNumber = "";

    Functions func = new Functions();

    public void run(String incomingMessage, String intid) {
        try {
            strReceivedData = incomingMessage.split("#");
            strProcessingCode = strReceivedData[0];
            strAmount = strReceivedData[1];
            strTrack2Data = strReceivedData[2];
            strpin = strReceivedData[3];
            strPhoneNumber = strReceivedData[4];
            //strBillNumber=strReceivedData[5];
            strRefNo = strReceivedData[5];

            strDeviceid = strRefNo;

            if (strTrack2Data.contains("=")) {
                strCardInformation = strTrack2Data.split("=");
                strCardNumber = strCardInformation[0];
                //strExpiryDate = strCardInformation[1].substring(0, 4);
                int strlen = strCardNumber.length();
                if (strlen < 16) {
                    strResponse = func.strPOSResponseHeader2(strDeviceid);
                    strResponse += "--------------------------------" + "#";
                    strResponse += "INVALID PAN #";
                    //strResponse += "CARDNO: "+strCardNumber+ "#";
                    //strResponse += "ExPiryDate: "+strExpiryDate+ "#";
                    strResponse += func.strPOSResponseFooter(strDeviceid);
                    func.SendPOSResponse(strResponse, intid);
                    return;
                }
                strExpiryDate = strCardInformation[1].substring(0, 4);
                //String[] strTrack2Data1 = strCardInformation[1].split("\\?");
                //strField35 = strCardInformation[0] + "=" + strTrack2Data1[0];

            } else if (strTrack2Data.contains("D")) {

                strCardInformation = strTrack2Data.split("D");
                strCardNumber = strCardInformation[0];
                int strlen = strCardNumber.length();
                if (strlen < 16) {
                    strResponse = func.strPOSResponseHeader2(strDeviceid);
                    strResponse += "--------------------------------" + "#";
                    strResponse += "INVALID PAN #";
                    strResponse += func.strPOSResponseFooter(strDeviceid);
                    func.SendPOSResponse(strResponse, strDeviceid);
                    return;
                }
                strExpiryDate = strCardInformation[1].substring(0, 4);
                //String[] strTrack2Data1 = strCardInformation[1].split("\\?");
                //strField35 = strCardInformation[0] + "=" + strTrack2Data1[0];
            }

            //send transactionDetails from pos to PaymentGateway
            //Auth key Variables
            String uniqueKey = "!Eclectic%IsThe BomB%Limited!??hehehe";
            String phoneNumber = strPhoneNumber;

            //Transaction Details Json Data
            JSONObject object = new JSONObject();
            object.put("Amount", strAmount);
            object.put("CardNo", strCardNumber);
            object.put("Channel", "POS");
            object.put("Organization", "Eclectics");
            object.put("ExpiryDate", strExpiryDate);
            object.put("RefNo", strRefNo);
            object.put("PhoneNumber", strPhoneNumber);
            object.put("MessageType", "0200");
            object.put("Country", "Kenya");
            object.put("Pin", strpin);
            object.put("ProcessingCode", "000200");
            object.put("Biller", "Safaricom");
            object.put("PaymentMode", "Card");
            object.put("Account", strPhoneNumber);

            System.out.println("JSON DATA= " + object);

            String jsonString = object.toString().replaceAll("\"", "");

            String tobase64String = new BASE64Encoder().encode(jsonString.getBytes());//. Base64.getEncoder().encodeToString(jsonString.getBytes());
            //System.out.println("TO BASE64 STRING= "+tobase64String);

            //Auth key
            String authKeyString = uniqueKey + phoneNumber;
            //base64 of authKey
            String base64AuthString = new BASE64Encoder().encode(authKeyString.getBytes());// ++Base64.getEncoder().encodeToString(authKeyString.getBytes());
            //generate authKey sha512
            String sha512AuthKey = null;
            try {

                MessageDigest md = MessageDigest.getInstance("SHA-512");
                byte[] hash = md.digest(base64AuthString.getBytes());
                sha512AuthKey = convertToHex(hash);
            } catch (NoSuchAlgorithmException ex) {
                func.log("\nSEVERE GatewayAirtimeTopUp() :: " + ex.getMessage() + "\n" + func.StackTraceWriter(ex),
                        "ERROR");
            }
            System.out.println("SHA512 AUTH KEY= " + sha512AuthKey);
            //send request
            String response = authentication(tobase64String, sha512AuthKey);
            System.out.println(response);

            String noCurly = response.replaceAll("[{}]", "");
            String formatResponse[] = noCurly.split(",");

            strResponse = func.strPOSResponseHeader2(strDeviceid);
            strResponse += "--------------------------------" + "#";
            strResponse += "  AIRTIME TOP UP #";
            for (int i = 0; i < formatResponse.length; i++) {
                strResponse += formatResponse[i] + "#";
            }

            strResponse += func.strPOSResponseFooter(strDeviceid);
            func.SendPOSResponse(strResponse, strDeviceid);

        } catch (Exception ex) {
            func.log("\nSEVERE GatewayAirtimeTopUp() :: " + ex.getMessage() + "\n" + func.StackTraceWriter(ex),
                    "ERROR");
        }
    }

    /**
    * Converts the given byte[] to a hex string.
    * @param raw the byte[] to convert
    * @return the string the given byte[] represents
    */
    private String convertToHex(byte[] raw) {
        StringBuilder sb = new StringBuilder();
        for (int i = 0; i < raw.length; i++) {
            sb.append(Integer.toString((raw[i] & 0xff) + 0x100, 16).substring(1));
        }
        return sb.toString();
    }

    //invoking the web service client reference 

    private static String authentication(java.lang.String tranDetails, java.lang.String authKey) {
        com.CardPaymentGateway.Request service = new com.CardPaymentGateway.Request();
        com.CardPaymentGateway.IncomingTransaction port = service.getIncomingTransactionPort();
        return port.authentication(tranDetails, authKey);
    }

}