<?php

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// phpcs:ignoreFile

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/**

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* The import/export class.

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*

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* @since 1.8.2

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*/

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namespace LiteSpeed;

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defined('WPINC') || exit();

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class Import extends Base {

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protected $_summary;

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const TYPE_IMPORT = 'import';

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const TYPE_EXPORT = 'export';

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const TYPE_RESET = 'reset';

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/**

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* Init

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*

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* @since 1.8.2

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*/

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public function __construct() {

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Debug2::debug('Import init');

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$this->_summary = self::get_summary();

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}

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/**

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* Export settings to file

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*

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* @since 1.8.2

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* @since 7.3 added download content type

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* @access public

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*/

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public function export( $only_data_return = false ) {

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$raw_data = $this->get_options(true);

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$data = array();

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foreach ($raw_data as $k => $v) {

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$data[] = \json_encode(array( $k, $v ));

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}

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$data = implode("\n\n", $data);

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if ($only_data_return) {

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return $data;

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}

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$filename = $this->_generate_filename();

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// Update log

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$this->_summary['export_file'] = $filename;

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$this->_summary['export_time'] = time();

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self::save_summary();

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Debug2::debug('Import: Saved to ' . $filename);

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@header('Content-Type: application/octet-stream');

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@header('Content-Disposition: attachment; filename=' . $filename);

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echo $data;

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exit();

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}

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/**

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* Import settings from file

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*

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* @since 1.8.2

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* @access public

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*/

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public function import( $file = false ) {

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if (!$file) {

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if (empty($_FILES['ls_file']['name']) || substr($_FILES['ls_file']['name'], -5) != '.data' || empty($_FILES['ls_file']['tmp_name'])) {

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Debug2::debug('Import: Failed to import, wrong ls_file');

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$msg = __('Import failed due to file error.', 'litespeed-cache');

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Admin_Display::error($msg);

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return false;

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}

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$this->_summary['import_file'] = $_FILES['ls_file']['name'];

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$data = file_get_contents($_FILES['ls_file']['tmp_name']);

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} else {

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$this->_summary['import_file'] = $file;

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$data = file_get_contents($file);

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}

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// Update log

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$this->_summary['import_time'] = time();

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self::save_summary();

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$ori_data = array();

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try {

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// Check if the data is v4+ or not

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if (strpos($data, '["_version",') === 0) {

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Debug2::debug('[Import] Data version: v4+');

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$data = explode("\n", $data);

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foreach ($data as $v) {

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$v = trim($v);

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if (!$v) {

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continue;

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}

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list($k, $v) = \json_decode($v, true);

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$ori_data[$k] = $v;

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}

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} else {

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$ori_data = \json_decode(base64_decode($data), true);

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}

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} catch (\Exception $ex) {

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Debug2::debug('[Import] ❌ Failed to parse serialized data');

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return false;

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}

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if (!$ori_data) {

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Debug2::debug('[Import] ❌ Failed to import, no data');

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return false;

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} else {

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Debug2::debug('[Import] Importing data', $ori_data);

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}

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$this->cls('Conf')->update_confs($ori_data);

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if (!$file) {

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Debug2::debug('Import: Imported ' . $_FILES['ls_file']['name']);

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$msg = sprintf(__('Imported setting file %s successfully.', 'litespeed-cache'), $_FILES['ls_file']['name']);

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Admin_Display::success($msg);

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} else {

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Debug2::debug('Import: Imported ' . $file);

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}

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return true;

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}

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/**

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* Reset all configs to default values.

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*

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* @since 2.6.3

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* @access public

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*/

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public function reset() {

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$options = $this->cls('Conf')->load_default_vals();

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$this->cls('Conf')->update_confs($options);

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Debug2::debug('[Import] Reset successfully.');

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$msg = __('Reset successfully.', 'litespeed-cache');

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Admin_Display::success($msg);

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}

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/**

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* Generate the filename to export

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*

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* @since 1.8.2

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* @access private

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*/

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private function _generate_filename() {

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// Generate filename

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$parsed_home = parse_url(get_home_url());

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$filename = 'LSCWP_cfg-';

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if (!empty($parsed_home['host'])) {

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$filename .= $parsed_home['host'] . '_';

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}

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if (!empty($parsed_home['path'])) {

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$filename .= $parsed_home['path'] . '_';

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}

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$filename = str_replace('/', '_', $filename);

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$filename .= '-' . date('Ymd_His') . '.data';

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return $filename;

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}

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/**

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* Handle all request actions from main cls

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*

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* @since 1.8.2

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* @access public

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*/

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public function handler() {

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$type = Router::verify_type();

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switch ($type) {

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case self::TYPE_IMPORT:

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$this->import();

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break;

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case self::TYPE_EXPORT:

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$this->export();

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break;

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case self::TYPE_RESET:

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$this->reset();

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break;

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default:

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break;

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}

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Admin::redirect();

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}

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}

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