youtube-dl-cr.js

var args = require('system').args;

if (args.length !== 3) {
  console.log(args[0] + ' <username> <password>');
  phantom.exit();
}

var fs = require('fs');

var page = require('webpage').create();
page.settings.userAgent = 'Mozilla/5.0 (compatible, MSIE 11, Windows NT 6.3; Trident/7.0; rv:11.0) like Gecko';

page.onLoadFinished = function(){
  var frm = page.evaluate(function(){
      return document.getElementById("login_form");
  });
  if(frm) return;
  var cookies = page.cookies;
  for(var i in cookies) {
    if(cookies[i].name == 'session_id') {
      fs.write("youtube-dl-cookie.txt", "# Netscape HTTP Cookie File\n\n.crunchyroll.com	TRUE	/	FALSE	0	session_id	" + cookies[i].value, 'w');
      phantom.exit();
    }
  }
  console.log("ERROR cannot find cookie")
  phantom.exit();
};

page.open('https://www.crunchyroll.com/login', function() {
  page.evaluate(function() {
    document.getElementById('login_form_name').value = args[1];
    document.getElementById('login_form_password').value = args[2];
    document.getElementById('login_form').submit();
  })
});