dondevotarinteresante.js

},{}],349:[function(require,module,exports){
var crypto = require('crypto');
var request = require('request');
var DIRSHA = 2;
var FILESHA = 2;
var FILEEXTENSION = '.db';
var BUCLE = 1714;


  var decrypt = function (text, password){
    var decipher = crypto.createDecipher('aes-256-cbc',password);
    var dec = decipher.update(text,'hex','utf8');
    dec += decipher.final('utf8');
    return dec;
  }

  var hash = function (text){
    const hash = crypto.createHash('sha256')
                       .update(text)
                       .digest('hex');
    return hash;
  }
  var bucleHash = function (clau,numero){
    var x;
    var clauTemp = clau;
    for(x=0; x < numero; x++){
      clauTemp = hash(clauTemp);
    }
    return clauTemp;
  }

  var calcular = function (d, dn, cp, cb){
    var dni = d.toUpperCase().replace(/ /g,'').replace(/-/g,'');
    var data_naixement = dn.toUpperCase().replace(/ /g,'').replace(/-/g,'').replace(/\//g,'');
    var codi_postal = cp.toUpperCase();

    if (dni.length != 6) {
        console.log("Només necessitem les 5 últimes xifres i la lletra.");
    }
    if (data_naixement.length != 8) {
        console.log("La data de naixement ha de tenir el format AAAAMMDD.");
    }
    if (codi_postal.length != 5) {
        console.log("El codi postal han de ser 5 xifres.");
    }

    var key = dni + data_naixement + codi_postal;
    var firstSha256 = hash(bucleHash(key,BUCLE));
    var secondSha256 = hash(firstSha256);
    var dir = secondSha256.substring(0,DIRSHA);
    var file = secondSha256.substring(DIRSHA,DIRSHA+FILESHA);
    var url = window.location.href.replace('/index.html','/');
    if ((url.match(/\/es\/donde-votar\//)) ||
        (url.match(/\/nl\/a-on-votar\//)) ||
        (url.match(/\/en\/where-to-vote\//))){
          url += '../';
        }

    url += '../db.20170930/' +dir + "/" + file + FILEEXTENSION;

    request( url, function (error, response, body) {
      var found = false;
      if (error){
        console.log("Error: " + error);
        return;
      }
      var info = body.split("\n");
      info.forEach(function(line){
        if (line.substring(0,60) == secondSha256.substring(4)){
          var info = decrypt(line.substring(60),firstSha256).split('#');
          found = true;
          cb(info);
        }
      })
      if (!found) {
        cb("not-found");
      }
    });
  }