payeer-api/lib/helpers.js

Node.js wrapper for the Payeer.com

'use strict';

Object.defineProperty(exports, "__esModule", {
  value: true
});
exports.paymentHash = paymentHash;
exports.paymentUrl = paymentUrl;
exports.paymentCheck = paymentCheck;

var _debug = require('debug');

var _debug2 = _interopRequireDefault(_debug);

var _crypto = require('crypto');

var _crypto2 = _interopRequireDefault(_crypto);

var _querystring = require('querystring');

var _querystring2 = _interopRequireDefault(_querystring);

function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }

var logger = (0, _debug2.default)('payeer-api');

var payeerMerchantUrl = 'https://payeer.com/merchant/';

function paymentHash(_ref) {
  var m_shop = _ref.m_shop,
      m_orderid = _ref.m_orderid,
      m_amount = _ref.m_amount,
      m_curr = _ref.m_curr,
      m_desc = _ref.m_desc,
      m_key = _ref.m_key;


  m_amount = Number(m_amount).toFixed(2);
  m_desc = new Buffer(m_desc).toString('base64');

  var arHash = [m_shop, m_orderid, m_amount, m_curr, m_desc];

  /*
    TODO: additional params code
  */

  arHash.push(m_key);

  var hash = _crypto2.default.createHash('sha256');
  var m_sign = hash.update(arHash.join(':')).digest('hex').toUpperCase();

  return {
    m_shop: m_shop,
    m_orderid: m_orderid,
    m_amount: m_amount,
    m_curr: m_curr,
    m_desc: m_desc,
    m_sign: m_sign
  };
}

function paymentUrl(oHash) {
  var uri = _querystring2.default.stringify(oHash);
  return [payeerMerchantUrl, uri].join('?');
}

function paymentCheck(arParams, m_key, ip) {

  var addresses = ['185.71.65.92', '185.71.65.189', '149.202.17.210'];

  if (ip && !addresses.includes(ip)) {
    return {
      reply: [arParams.m_orderid, 'error'].join('|'),
      error: 'bad ip address'
    };
  }

  if (arParams.m_operation_id && arParams.m_sign) {
    var arHash = ['m_operation_id', 'm_operation_ps', 'm_operation_date', 'm_operation_pay_date', 'm_shop', 'm_orderid', 'm_amount', 'm_curr', 'm_desc', 'm_status'].map(function (key) {
      return arParams[key];
    });

    if (arParams.m_params) {
      arHash.push(arParams.m_params);
    }

    arHash.push(m_key);

    var hash = _crypto2.default.createHash('sha256');
    var m_sign = hash.update(arHash.join(':')).digest('hex').toUpperCase();

    if (arParams.m_sign == m_sign && arParams.m_status == 'success') {
      return {
        reply: [arParams.m_orderid, 'success'].join('|'),
        error: false
      };
    } else {
      return {
        reply: [arParams.m_orderid, 'error'].join('|'),
        error: 'wrong sign'
      };
    }
  }

  return {
    reply: [arParams.m_orderid, 'error'].join('|'),
    error: 'wrong params'
  };
}