partner-cjk.js
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var winston = require('winston');
var crypto = require('crypto');
var xml = require('xml');
var url = require('url');
var http = require('http');
var xml2js = require('xml2js').parseString;
var LRU = require("lru-cache");
var config;
var callbackReport;
var aaa;
var logger;
var options;
var taskCache = LRU({max: 2000});
var maxRetry = 10;
var sleepBeforeRetry = 30;
function start(_config, _callbackReport, options) {
config = _config;
callbackReport = _callbackReport
if (options && options.aaa) {
aaa = options.aaa;
}
if (options && options.logger) {
logger = options.logger;
} else {
logger = new winston.Logger({
transports: [
new (winston.transports.Console)()
]
});
}
}
function calculateSignature(params) {
var passwordHash = crypto.createHash('sha1').update(params.password).digest().toString('hex');
var plain = params.trxtype + params.prdcode + params.value + params.msisdn + params.trxid + params.uid + passwordHash;
var signature = crypto.createHash('sha256').update(plain).digest().toString('hex');
try {
logger.verbose('Signature calculated', {plain: plain, signature: signature});
}
catch(err) {}
return signature;
}
function createXmlPayload(params) {
var payload = "<?xml version=\"1.0\" ?>\n" + xml({
ciwaru: [
{trxtype: params.trxtype},
{prdcode: params.prdcode},
{value: params.value},
{msisdn: params.msisdn},
{trxid: params.trxid},
{uid: params.uid},
{hash: calculateSignature(params)}
]
});
logger.verbose("Payload: " + payload);
return payload;
}
function getSNFromMessage(message) {
try {
var sn_match = message.match(/SN: (\w+)/);
return sn_match[1];
}
catch(err) {
return '';
}
}
function hasSuccessKeywords(message) {
var keywords = ['SUKSES', 'Finish'];
var count = keywords.length;
for (var i=0; i < count; i++) {
if (message.indexOf(keywords[i]) >= 0) {
return true;
}
}
return false;
}
function supplierRcToST24Rc(rc) {
var rcs = {
'0001': '40',
'0019': '13', // produk tidak tersedia
}
if (rcs[rc]) {
return rcs[rc];
} else {
return;
}
}
function topupResponseHandler(body) {
//logger.info('Got reply from partner', {body: body});
xml2js(body, function(err, result) {
if (err) {
logger.warn('Got invalid XML from partner', {err: err, body: body});
}
logger.info('XML message from partner', {result: result});
var rc = '68';
var message = result.ciwaru.msg[0];
var trxid = 0;
try {
trxid = result.ciwaru.reqnum[0];
}
catch(err) {
trxid = result.ciwaru.trxid[0];
}
var task = taskCache.get(trxid);
if (!task) {
logger.warn('Got reply for undefined task');
return;
}
if (message.indexOf('PENDING') >= 0) {
rc = '68';
}
else if (hasSuccessKeywords(message)) {
var sn = getSNFromMessage(result.ciwaru.msg);
message = 'SN=' + sn + '; ' + message;
rc = '00';
} else {
rc = supplierRcToST24Rc(result.ciwaru.rc[0]);
if (!rc) {
rc = '68';
}
}
if ((task.retry == maxRetry) || (rc != '68')) {
callbackReport(trxid, rc, message);
} else {
logger.info('Not reporting to AAA for duplicate 68', {task: task});
}
if (rc == '68') {
task.retry--;
taskCache.set(trxid, task);
if (task.retry) {
logger.info('Got pending status, retrying in ' + sleepBeforeRetry + 's');
setTimeout(topupRequest, sleepBeforeRetry * 1000, task, task.retry);
}
else {
logger.warn('Maximum retry for pending status exceeded', {task: task});
}
} else {
taskCache.del(trxid);
}
});
}
function topupRequest(task, retry) {
if (retry === undefined) {
task.retry = maxRetry;
}
taskCache.set(task.requestId, task);
var remoteProduct = task.remoteProduct.split(',');
var params = {
trxtype: '01',
prdcode: remoteProduct[0],
value: remoteProduct[1],
msisdn: task.destination,
trxid: task.requestId,
uid: config.h2h_out.userid,
password: config.h2h_out.password,
};
var postBody = createXmlPayload(params);
var partnerUrl = url.parse(config.h2h_out.partner);
var postRequest = {
host: partnerUrl.hostname,
path: partnerUrl.path,
port: partnerUrl.port,
method: "POST",
headers: {
'Content-Type': 'text/xml',
'Content-Length': Buffer.byteLength(postBody)
}
};
logger.info('POST to partner', {postRequest: postRequest});
var req = http.request(postRequest, function( res ) {
logger.info('Status code: ' + res.statusCode );
var buffer = "";
res.on( "data", function( data ) { buffer = buffer + data; } );
res.on( "end", function( data ) {
topupResponseHandler(buffer);
});
});
req.on('error', function(e) {
logger.warn('problem with request: ' + e.message);
callbackReport(task['requestId'], '40', e.message);
});
req.write(postBody);
req.end();
}
exports.start = start;
exports.topupRequest = topupRequest;
exports.calculateSignature = calculateSignature;
exports.createXmlPayload = createXmlPayload;
exports.getSNFromMessage = getSNFromMessage;