read cookie jar for phantom.js

var webpage = require('webpage');
var fs = require('fs');
var page = webpage.create();

readCookiesFromFile = function() {
  cookieJar = [];
  if(fs.isFile(cookieJarFilePath)) {
    cookieJar = JSON.parse(fs.read(cookieJarFilePath));
  }
  for(var j in cookieJar) {
    phantom.addCookie({
      'name'     : cookieJar[j].name,
      'value'    : cookieJar[j].value,
      'domain'   : cookieJar[j].domain,
      'path'     : cookieJar[j].path,
      'httponly' : cookieJar[j].httponly,
      'secure'   : cookieJar[j].secure,
      'expires'  : cookieJar[j].expires
    });
  }
};

readCookiesFromFile();

writeCookiesToFile = function() {
  cookieJar = [];
  for(var j in phantom.cookies) {
    cookieJar.push({
      name: phantom.cookies[j].name,
      value: phantom.cookies[j].value,
      domain: phantom.cookies[j].domain,
      path: phantom.cookies[j].path,
      httponly: phantom.cookies[j].httponly,
      secure: phantom.cookies[j].secure,
      expires: phantom.cookies[j].expires
    });
  }
  
  if(!fs.isFile(cookieJarFilePath)){
    fs.write(filePath, JSON.stringify(cookieJar), 'w');
	}
};

page.open('http://localhost/mywebpage.html', 'GET', function(status) {
  if(status != 'success') {
    phantom.exit(1);
  }
  else {
    setTimeout(function () {
      writeCookiesToFile();
      phantom.exit();
    }, 10000);
  }
});