alphascript-server/lib/util/validate.js

CRUD operations for mongo and other functionalities to get started quickly in any CMS project

module.exports = {
  nif: isValidNIF,
  niss: isValidNISS,
  cc: isValidCC,
  nib: isValidNIB
};

function isValidCC(input) {
  //validade and convert value to string
  if (!input) {
    return false;
  }
  try {
    input = input.toString();
  }
  catch (err) {
    return false;
  }

  var sum = 0;
  var secondDigit = false;
  if(input.length !== 12) {
    return false;
  }
  for (var i = input.length-1; i >= 0; --i) {
    var valor = getNumberFromChar(input[i]);
    if (valor === -1) {
      return false;
    }
    if (secondDigit) {
      valor *= 2;
      if (valor > 9) {
        valor -= 9;
      }
    }
    sum += valor;
    secondDigit = !secondDigit;
  }
  return (sum % 10) === 0;
}

function isValidNIB(value) {
  //validade and convert value to string
  if (!value) {
    return false;
  }
  try {
    value = value.toString();
  }
  catch (err) {
    return false;
  }

  var re = new RegExp("^\\d{21}$");
  if (!value.match(re)) {
    return false;
  }

  var result = 0;
  for (var i = 0; i < 19; i++) {
    result += parseInt(value[i]);
    result *= 10;
    result %= 97;
  }
  result = 98 - ((result * 10) % 97);
  return parseInt(value.substring(19, 21)) === result;
}

function isValidNISS(input) {
  //validade and convert value to string
  if (!input) {
    return false;
  }
  try {
    input = input.toString();
  }
  catch (err) {
    return false;
  }

  input = input.replace(/\s+/g, '');
  if(input.length !== 11) {
    return false;
  }

  var factor =  [ 29, 23, 19, 17, 13, 11, 7, 5, 3, 2 ];
  var totalSum = 0;
  for (var i = 0; i<input.length-1; i++) {
    totalSum += parseInt(input[i] * factor[i]);
  }

  totalSum = 9-parseInt(totalSum % 10);
  var checkSum = parseInt(input[input.length-1]);

  return (totalSum === checkSum);
}

function isValidNIF(value) {
  //validade and convert value to string
  if (!value) {
    return false;
  }
  try {
    value = value.toString();
  }
  catch (err) {
    return false;
  }

  //Qualquer sequencia de 9 digitos iniciada por 1,2,5,6,7,8,9
  var re = new RegExp("[1,2,5,6,7,8,9]\\d{8}");
  if (!value.match(re)) {
    return false;
  }

  //calculo do total, de cada numero do contribuinte
  var total = 0;
  for (i = 0; i < 8; i++) {
    total += parseInt(value[i]) * (9 - i);
  }

  var check = 11 - (total % 11);
  if (check >= 10) {
    check = 0;
  }
  if(check !== parseInt(value[8])) {
    return false;
  }
  else {
    return true;
  }
}

function getNumberFromChar(letter) {
  switch (letter) {
    case '0': return 0;
    case '1': return 1;
    case '2': return 2;
    case '3': return 3;
    case '4': return 4;
    case '5': return 5;
    case '6': return 6;
    case '7': return 7;
    case '8': return 8;
    case '9': return 9;
    case 'A': return 10;
    case 'B': return 11;
    case 'C': return 12;
    case 'D': return 13;
    case 'E': return 14;
    case 'F': return 15;
    case 'G': return 16;
    case 'H': return 17;
    case 'I': return 18;
    case 'J': return 19;
    case 'K': return 20;
    case 'L': return 21;
    case 'M': return 22;
    case 'N': return 23;
    case 'O': return 24;
    case 'P': return 25;
    case 'Q': return 26;
    case 'R': return 27;
    case 'S': return 28;
    case 'T': return 29;
    case 'U': return 30;
    case 'V': return 31;
    case 'W': return 32;
    case 'X': return 33;
    case 'Y': return 34;
    case 'Z': return 35;
    default: return -1;
  }
}