As the sun rises and the forest mist clears, and the clouds return and the caves darken, these changes of light and shadow are the morning and evening in the mountains. Wildflowers bloom with their subtle fragrance, fine trees flourish with their dense shade, the wind and frost are pure and clean, and the water recedes to reveal the rocks—these are the four seasons in the mountains. Going out in the morning and returning in the evening, the scenery of the four seasons is different, and the joy is endless.至于负者歌于途,行者休于树,前者呼,后者应,伛偻提携,往来而不绝者,滁人游也。临溪而渔,溪深而鱼肥,酿泉为酒,泉香而酒洌,山肴野蔌,杂然而前陈者,太守宴也。宴酣之乐,非丝非竹,射者中,弈者胜,觥筹交错,起坐而喧哗者,众宾欢也。苍颜白发,颓然乎其间者,太守醉也。
<?php
// phpcs:ignoreFile
/**
* The import/export class.
*
* @since 1.8.2
*/
namespace LiteSpeed;
defined('WPINC') || exit();
class Import extends Base {
protected $_summary;
const TYPE_IMPORT = 'import';
const TYPE_EXPORT = 'export';
const TYPE_RESET = 'reset';
/**
* Init
*
* @since 1.8.2
*/
public function __construct() {
Debug2::debug('Import init');
$this->_summary = self::get_summary();
}
/**
* Export settings to file
*
* @since 1.8.2
* @since 7.3 added download content type
* @access public
*/
public function export( $only_data_return = false ) {
$raw_data = $this->get_options(true);
$data = array();
foreach ($raw_data as $k => $v) {
$data[] = \json_encode(array( $k, $v ));
}
$data = implode("\n\n", $data);
if ($only_data_return) {
return $data;
}
$filename = $this->_generate_filename();
// Update log
$this->_summary['export_file'] = $filename;
$this->_summary['export_time'] = time();
self::save_summary();
Debug2::debug('Import: Saved to ' . $filename);
@header('Content-Type: application/octet-stream');
@header('Content-Disposition: attachment; filename=' . $filename);
echo $data;
exit();
}
/**
* Import settings from file
*
* @since 1.8.2
* @access public
*/
public function import( $file = false ) {
if (!$file) {
if (empty($_FILES['ls_file']['name']) || substr($_FILES['ls_file']['name'], -5) != '.data' || empty($_FILES['ls_file']['tmp_name'])) {
Debug2::debug('Import: Failed to import, wrong ls_file');
$msg = __('Import failed due to file error.', 'litespeed-cache');
Admin_Display::error($msg);
return false;
}
$this->_summary['import_file'] = $_FILES['ls_file']['name'];
$data = file_get_contents($_FILES['ls_file']['tmp_name']);
} else {
$this->_summary['import_file'] = $file;
$data = file_get_contents($file);
}
// Update log
$this->_summary['import_time'] = time();
self::save_summary();
$ori_data = array();
try {
// Check if the data is v4+ or not
if (strpos($data, '["_version",') === 0) {
Debug2::debug('[Import] Data version: v4+');
$data = explode("\n", $data);
foreach ($data as $v) {
$v = trim($v);
if (!$v) {
continue;
}
list($k, $v) = \json_decode($v, true);
$ori_data[$k] = $v;
}
} else {
$ori_data = \json_decode(base64_decode($data), true);
}
} catch (\Exception $ex) {
Debug2::debug('[Import] ❌ Failed to parse serialized data');
return false;
}
if (!$ori_data) {
Debug2::debug('[Import] ❌ Failed to import, no data');
return false;
} else {
Debug2::debug('[Import] Importing data', $ori_data);
}
$this->cls('Conf')->update_confs($ori_data);
if (!$file) {
Debug2::debug('Import: Imported ' . $_FILES['ls_file']['name']);
$msg = sprintf(__('Imported setting file %s successfully.', 'litespeed-cache'), $_FILES['ls_file']['name']);
Admin_Display::success($msg);
} else {
Debug2::debug('Import: Imported ' . $file);
}
return true;
}
/**
* Reset all configs to default values.
*
* @since 2.6.3
* @access public
*/
public function reset() {
$options = $this->cls('Conf')->load_default_vals();
$this->cls('Conf')->update_confs($options);
Debug2::debug('[Import] Reset successfully.');
$msg = __('Reset successfully.', 'litespeed-cache');
Admin_Display::success($msg);
}
/**
* Generate the filename to export
*
* @since 1.8.2
* @access private
*/
private function _generate_filename() {
// Generate filename
$parsed_home = parse_url(get_home_url());
$filename = 'LSCWP_cfg-';
if (!empty($parsed_home['host'])) {
$filename .= $parsed_home['host'] . '_';
}
if (!empty($parsed_home['path'])) {
$filename .= $parsed_home['path'] . '_';
}
$filename = str_replace('/', '_', $filename);
$filename .= '-' . date('Ymd_His') . '.data';
return $filename;
}
/**
* Handle all request actions from main cls
*
* @since 1.8.2
* @access public
*/
public function handler() {
$type = Router::verify_type();
switch ($type) {
case self::TYPE_IMPORT:
$this->import();
break;
case self::TYPE_EXPORT:
$this->export();
break;
case self::TYPE_RESET:
$this->reset();
break;
default:
break;
}
Admin::redirect();
}
}