ControllerCommonFileManager::folder PHP Method

    public function folder()
    {
        $this->load->language('common/filemanager');
        $json = array();
        // Check user has permission
        if (!$this->user->hasPermission('modify', 'common/filemanager')) {
            $json['error'] = $this->language->get('error_permission');
        }
        // Make sure we have the correct directory
        if (isset($this->request->get['directory'])) {
            $directory = rtrim(DIR_IMAGE . 'catalog/' . $this->request->get['directory'], '/');
        } else {
            $directory = DIR_IMAGE . 'catalog';
        }
        // Check its a directory
        if (!is_dir($directory) || substr(str_replace('\\', '/', realpath($directory)), 0, strlen(DIR_IMAGE . 'catalog')) != DIR_IMAGE . 'catalog') {
            $json['error'] = $this->language->get('error_directory');
        }
        if ($this->request->server['REQUEST_METHOD'] == 'POST') {
            // Sanitize the folder name
            $folder = basename(html_entity_decode($this->request->post['folder'], ENT_QUOTES, 'UTF-8'));
            // Validate the filename length
            if (utf8_strlen($folder) < 3 || utf8_strlen($folder) > 128) {
                $json['error'] = $this->language->get('error_folder');
            }
            // Check if directory already exists or not
            if (is_dir($directory . '/' . $folder)) {
                $json['error'] = $this->language->get('error_exists');
            }
        }
        if (!isset($json['error'])) {
            mkdir($directory . '/' . $folder, 0777);
            chmod($directory . '/' . $folder, 0777);
            @touch($directory . '/' . $folder . '/' . 'index.html');
            $json['success'] = $this->language->get('text_directory');
        }
        $this->response->addHeader('Content-Type: application/json');
        $this->response->setOutput(json_encode($json));
    }