public static function init()
{
self::config();
iFS::init(self::$config['FS'], self::$config['watermark'], 'filedata');
iCache::init(self::$config['cache']);
iURL::init(self::$config['router']);
iPHP::iTemplate();
iPHP_DEBUG && (iDB::$show_errors = true);
iPHP_TPL_DEBUG && iPHP::clear_compiled_tpl();
define('iCMS_DIR', self::$config['router']['DIR']);
define('iCMS_URL', self::$config['router']['URL']);
define('iCMS_PUBLIC_URL', self::$config['router']['public_url']);
define('iCMS_USER_URL', self::$config['router']['user_url']);
define('iCMS_FS_URL', self::$config['FS']['url']);
define('iCMS_REWRITE', self::$config['router']['rewrite']);
define('iCMS_API', iCMS_PUBLIC_URL . '/api.php');
define('iCMS_UI', iCMS_DIR . 'app/ui/common');
define('iCMS_UI_URL', iCMS_URL . '/app/ui/common');
self::$apps = self::$config['apps'];
self::assign_site();
}