/**
* Apply special host settings,
* Taken from "hosts" part of site config file
*
* @return void
*/
public static function applyHostSettings($file)
{
self::$hosts = (require DOCUMENT_ROOT . "/{$file}");
$server = preg_replace('|^www.|', '', $_SERVER['HTTP_HOST']);
if (isset(self::$hosts[$server])) {
$host = self::$hosts[$server];
self::$settings = array_merge(self::$settings, $host);
} else {
throw new \Exception('wrong server config');
}
}