gpassarelli / parsley.js-credit-card-validator Goto Github PK

/**
 * Helper function to get credit card brand name from credit card number.
 * @param  string number        The credit card number
 * @param  boolean check_length Should it check for length
 * @return mixed                The card brand name or null
 */
window.getCreditCardBrand = function(number, check_length){
  var _j, _len1,
  card_name = [],
  number = number.replace(/[ -]/g, '');

  if(!number.length){
    return;
  }

  var check_length = (typeof check_length !== 'undefined') ? check_length : false,
  card_types = [
    {
      name: 'amex',
      pattern: /^3[47]/,
      valid_length: [15]
    },{
      name: 'china_union_pay',
      pattern: /^(62|88)/,
      valid_length: [16, 17, 18, 19]
    },{
      name: 'dankort',
      pattern: /^5019/,
      valid_length: [16]
    },{
      name: 'diners_club_carte_blanche',
      pattern: /^30[0-5]/,
      valid_length: [14]
    },{
      name: 'diners_club_international',
      pattern: /^(30[0-5]|309|36|38|39)/,
      valid_length: [14]
    },{
      name: 'diners_club_us_and_canada',
      pattern: /^(54|55)/,
      valid_length: [16]
    },{
      name: 'discover',
      pattern: /^(6011|622(12[6-9]|1[3-9][0-9]|[2-8][0-9]{2}|9[0-1][0-9]|92[0-5]|64[4-9])|65)/,
      valid_length: [16]
    },{
      name: 'jcb',
      pattern: /^35(2[89]|[3-8][0-9])/,
      valid_length: [16]
    },{
      name: 'laser',
      pattern: /^(6304|670[69]|6771)/,
      valid_length: [16, 17, 18, 19]
    },{
      name: 'maestro',
      pattern: /^(5018|5020|5038|6304|6759|676[1-3])/,
      valid_length: [12, 13, 14, 15, 16, 17, 18, 19]
    },{
      name: 'mastercard',
      pattern: /^5[1-5]/,
      valid_length: [16]
    },{
      name: 'visa',
      pattern: /^4/,
      valid_length: [16]
    },{
      name: 'visa_electron',
      pattern: /^(4026|417500|4508|4844|491(3|7))/,
      valid_length: [16]
    }
  ];

  for (_j = 0, _len1 = card_types.length; _j < _len1; _j++) {
    var card = card_types[_j];

    if (card.pattern.test(number)) {
      if (check_length && card.valid_length.indexOf(number.length) > -1) {
        card_name.push(card.name);
        break;
      }

      card_name.push(card.name);
    }
  }

  if(card_name.length) {
    return card_name.join(' ');
  }

  return null;
};

//---------------------------------------
// CreditCard Number Verification
//---------------------------------------
window.Parsley.addValidator('creditcard',
    function (value, requirement) {
        var digit, n, _ref2, valid, _j, _len1,
            sum = 0;


        value = value.replace(/[ -]/g, '');
        _ref2 = value.split('').reverse();

        for (n = _j = 0, _len1 = _ref2.length; _j < _len1; n = ++_j) {
            digit = _ref2[n];
            digit = +digit;

            if (n % 2) {
                digit *= 2;

                if (digit < 10) {
                    sum += digit;
                } else {
                    sum += digit - 9;
                }
            } else {
                sum += digit;
            }
        }
        valid =  (sum % 10 === 0);

        // Checks for specific brands
        if(valid && requirement.length){
          var valid_cards = requirement.split(','),
              valid = false,
              card = getCreditCardBrand(value, true).split(' ');

          for( var c in card){
            if(requirement.indexOf(card[c]) > -1) {
              valid = true;
            }
          }
        }

        return valid;
    },32)
    .addMessage('en', 'creditcard', 'This Credit Card number is invalid or this brand is not supported.');


//---------------------------------------
// CCV Verification
//---------------------------------------
window.Parsley.addValidator('cvv',
    function (value) {
        return /^[0-9]{3,4}$/.test(value);
    }, 32)
    .addMessage('en', 'cvv', 'This value should be a valid CVV number');

//---------------------------------------
// Expiry Date Verification
//---------------------------------------
window.Parsley.addValidator('expirydate',
    function (value) {
        var currentTime, expiry, prefix, ref;

        if(value.indexOf('/') === -1){
          return false;
        }

        var date = value.split('/'),
            month = date[0].trim(),
            year  = date[1].trim();

        if (!/^\d+$/.test(month)) {
          return false;
        }
        if (!/^\d+$/.test(year)) {
          return false;
        }
        if (!(parseInt(month, 10) <= 12)) {
          return false;
        }
        if (year.length === 2) {
          prefix = (new Date).getFullYear();
          prefix = prefix.toString().slice(0, 2);
          year = prefix + year;
        }
        expiry = new Date(year, month);
        currentTime = new Date;
        expiry.setMonth(expiry.getMonth() - 1);
        expiry.setMonth(expiry.getMonth() + 1, 1);
        return expiry > currentTime;
    }, 32)
    .addMessage('en', 'expirydate', 'This value should be a valid date');