// Error ?
    if($data && passEqual($_POST['configuration_pass'], $data['user_pass'])) {
      // Thanks http://stackoverflow.com/questions/4914750/how-to-zip-a-whole-folder-using-php
      if($_POST['configuration_os'] == "android") {
        $conf_dir = 'android';
      } if($_POST['configuration_os'] == "gnu_linux") {
        $conf_dir = 'gnu-linux';
      } elseif($_POST['configuration_os'] == "osx_viscosity") {
        $conf_dir = 'osx-viscosity';
      } else {
        $conf_dir = 'windows';
      }
      $rootPath = realpath("./client-conf/$conf_dir");