index.js

var banks = [
  {
    nickname: 'central-bank',
    name: 'Central Bank of Iran',
    persianName: 'بانک مرکزی جمهوری اسلامی ایران',
    code: '010',
    accountNumberAvailable: false,
  },
  {
    nickname: 'sanat-o-madan',
    name: 'Sanat O Madan Bank',
    persianName: 'بانک صنعت و معدن',
    code: '011',
    accountNumberAvailable: false,
  },
  {
    nickname: 'mellat',
    name: 'Mellat Bank',
    persianName: 'بانک ملت',
    code: '012',
    accountNumberAvailable: false,
  },
  {
    nickname: 'refah',
    name: 'Refah Bank',
    persianName: 'بانک رفاه کارگران',
    code: '013',
    accountNumberAvailable: false,
  },
  {
    nickname: 'maskan',
    name: 'Maskan Bank',
    persianName: 'بانک مسکن',
    code: '014',
    accountNumberAvailable: false,
  },
  {
    nickname: 'sepah',
    name: 'Sepah Bank',
    persianName: 'بانک سپه',
    code: '015',
    accountNumberAvailable: false,
  },
  {
    nickname: 'keshavarzi',
    name: 'Keshavarzi',
    persianName: 'بانک کشاورزی',
    code: '016',
    accountNumberAvailable: false,
  },
  {
    nickname: 'melli',
    name: 'Melli',
    persianName: 'بانک ملی ایران',
    code: '017',
    accountNumberAvailable: false,
  },
  {
    nickname: 'tejarat',
    name: 'Tejarat Bank',
    persianName: 'بانک تجارت',
    code: '018',
    accountNumberAvailable: false,
  },
  {
    nickname: 'saderat',
    name: 'Saderat Bank',
    persianName: 'بانک صادرات ایران',
    code: '019',
    accountNumberAvailable: false,
  },
  {
    nickname: 'tosee-saderat',
    name: 'Tose Saderat Bank',
    persianName: 'بانک توسعه صادرات',
    code: '020',
    accountNumberAvailable: false,
  },
  {
    nickname: 'post',
    name: 'Post Bank',
    persianName: 'پست بانک ایران',
    code: '021',
    accountNumberAvailable: false,
  },
  {
    nickname: 'toose-taavon',
    name: 'Tosee Taavon Bank',
    persianName: 'بانک توسعه تعاون',
    code: '022',
    accountNumberAvailable: false,
  },
  {
    nickname: 'tosee',
    name: 'Tosee Bank',
    persianName: 'موسسه اعتباری توسعه',
    code: '051',
    accountNumberAvailable: false,
  },
  {
    nickname: 'ghavamin',
    name: 'Ghavamin Bank',
    persianName: 'بانک قوامین',
    code: '052',
    accountNumberAvailable: false,
  },
  {
    nickname: 'karafarin',
    name: 'Karafarin Bank',
    persianName: 'بانک کارآفرین',
    code: '053',
    accountNumberAvailable: false,
  },
  {
    nickname: 'parsian',
    name: 'Parsian Bank',
    persianName: 'بانک پارسیان',
    code: '054',
    accountNumberAvailable: true,
    process: function(str) {
      str = str.substring(14);
      var formatted =
        '0' +
        str.substr(0, 2) +
        '-0' +
        str.substr(2, 7) +
        '-' +
        str.substr(9, 3);
      return {
        normal: str,
        formatted: formatted,
      };
    },
  },
  {
    nickname: 'eghtesad-novin',
    name: 'Eghtesad Novin Bank',
    persianName: 'بانک اقتصاد نوین',
    code: '055',
    accountNumberAvailable: false,
  },
  {
    nickname: 'saman',
    name: 'Saman Bank',
    persianName: 'بانک سامان',
    code: '056',
    accountNumberAvailable: false,
  },
  {
    nickname: 'pasargad',
    name: 'Pasargad Bank',
    persianName: 'بانک پاسارگاد',
    code: '057',
    accountNumberAvailable: true,
    process: function(str) {
      str = str.substring(7);
      while (str[0] === '0') {
        str = str.substring(1);
      }
      str = str.substr(0, str.length - 2);
      var formatted =
        str.substr(0, 3) +
        '-' +
        str.substr(3, 3) +
        '-' +
        str.substr(6, 8) +
        '-' +
        str.substr(14, 1);
      return {
        normal: str,
        formatted: formatted,
      };
    },
  },
  {
    nickname: 'sarmayeh',
    name: 'Sarmayeh Bank',
    persianName: 'بانک سرمایه',
    code: '058',
    accountNumberAvailable: false,
  },
  {
    nickname: 'sina',
    name: 'Sina Bank',
    persianName: 'بانک سینا',
    code: '059',
    accountNumberAvailable: false,
  },
  {
    nickname: 'mehr-iran',
    name: 'Mehr Iran Bank',
    persianName: 'بانک مهر ایران',
    code: '060',
    accountNumberAvailable: false,
  },
  {
    nickname: 'shahr',
    name: 'City Bank',
    persianName: 'بانک شهر',
    code: '061',
    accountNumberAvailable: true,
    process: function(str) {
      str = str.substring(7);
      while (str[0] === '0') {
        str = str.substring(1);
      }
      return {
        normal: str,
        formatted: str,
      };
    },
  },
  {
    nickname: 'ayandeh',
    name: 'Ayandeh Bank',
    persianName: 'بانک آینده',
    code: '062',
    accountNumberAvailable: false,
  },
  {
    nickname: 'ansar',
    name: 'Ansar Bank',
    persianName: 'بانک انصار',
    code: '063',
    accountNumberAvailable: false,
  },
  {
    nickname: 'gardeshgari',
    name: 'Gardeshgari Bank',
    persianName: 'بانک گردشگری',
    code: '064',
    accountNumberAvailable: false,
  },
  {
    nickname: 'hekmat-iranian',
    name: 'Hekmat Iranian Bank',
    persianName: 'بانک حکمت ایرانیان',
    code: '065',
    accountNumberAvailable: false,
  },
  {
    nickname: 'dey',
    name: 'Dey Bank',
    persianName: 'بانک دی',
    code: '066',
    accountNumberAvailable: false,
  },
  {
    nickname: 'iran-zamin',
    name: 'Iran Zamin Bank',
    persianName: 'بانک ایران زمین',
    code: '069',
    accountNumberAvailable: false,
  },
  {
    nickname: 'resalat',
    name: 'Resalat Bank',
    persianName: 'بانک قرض الحسنه رسالت',
    code: '070',
    accountNumberAvailable: false,
  },
  {
    nickname: 'mehr-iran',
    name: 'Mehr Iran Bank',
    persianName: 'بانک مهر ایران',
    code: '090',
    accountNumberAvailable: false,
  },
  {
    nickname: 'iran-venezuela',
    name: 'Iran and Venezuela Bank',
    persianName: 'بانک ایران و ونزوئلا',
    code: '095',
    accountNumberAvailable: false,
  },
];
var banksHash = {};
var banksOutput = [];
for (var i = 0; i < banks.length; i++) {
  banksHash[banks[i].code] = banks[i];

  banksOutput.push({
    nickname: banks[i].nickname,
    name: banks[i].name,
    persianName: banks[i].persianName,
    code: banks[i].code,
    accountNumberAvailable: banks[i].accountNumberAvailable,
  });
}

var pattern = /IR[0-9]{24}/;
var pattern_code = /IR[0-9]{2}([0-9]{3})[0-9]{19}/;

module.exports.banks = banksOutput;

function iso7064Mod97_10(iban) {
  var remainder = iban,
    block;

  while (remainder.length > 2) {
    block = remainder.slice(0, 9);
    remainder = (parseInt(block, 10) % 97) + remainder.slice(block.length);
  }

  return parseInt(remainder, 10) % 97;
}

var validate = function(str) {
  if (str.length !== 26) {
    return false;
  }

  if (!pattern.test(str)) {
    return false;
  }

  var newStr = str.substr(4);
  var d1 = str.charCodeAt(0) - 65 + 10;
  var d2 = str.charCodeAt(1) - 65 + 10;
  newStr += d1.toString() + d2.toString() + str.substr(2, 2);

  var remainder = iso7064Mod97_10(newStr);
  if (remainder !== 1) {
    return false;
  }

  return true;
};

module.exports.isValid = validate;

module.exports.recognize = function(str) {
  if (!validate(str)) {
    return false;
  }

  var res = pattern_code.exec(str);
  var code = res[1];
  if (!banksHash[code]) {
    return false;
  }

  var bank = banksHash[code];
  var result = {
    nickname: bank.nickname,
    name: bank.name,
    persianName: bank.persianName,
    code: bank.code,
    accountNumberAvailable: bank.accountNumberAvailable,
  };
  if (bank.accountNumberAvailable) {
    var data = bank.process(str);
    result.accountNumber = data.normal;
    result.formattedAccountNumber = data.formatted;
  }
  return result;
};