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C:\xampp\htdocs\landing\wp-content\plugins\wp-optimize\cache\class-cache-commands.php

<?php

if (!defined('ABSPATH')) die('No direct access allowed');

/**
 * All cache commands that are intended to be available for calling from any sort of control interface (e.g. wp-admin, UpdraftCentral) go in here. All public methods should either return the data to be returned, or a WP_Error with associated error code, message and error data.
 */
class WP_Optimize_Cache_Commands {

    private $optimizer;

    private $options;

    /**
     * WP_Optimize_Cache_Commands constructor.
     */
    public function __construct() {
        $this->optimizer = WP_Optimize()->get_optimizer();
        $this->options = WP_Optimize()->get_options();
    }

    /**
     * Save cache settings
     *
     * @param array $data
     *
     * @return array
     */
    public function save_cache_settings($data) {

        if (!class_exists('WPO_Cache_Config')) return array(
            'result' => false,
            'message' => "WPO_Cache_Config class doesn't exist",
        );

        // filter for validate cache settings before save it.
        $validation = apply_filters('wpo_save_cache_settings_validation', $data['cache-settings']);

        if (!empty($validation) && false === $validation['result']) {
            return $validation;
        }

        $enabled = false;
        $disabled = false;
        $return = !empty($validation) ? $validation : array();
        $previous_settings = WPO_Cache_Config::instance()->get();

        // Attempt to change current status if required
        if (isset($previous_settings['enable_page_caching']) && $previous_settings['enable_page_caching'] != $data['cache-settings']['enable_page_caching']) {
            // Disable cache.
            if (empty($data['cache-settings']['enable_page_caching'])) {
                $disabled = WPO_Page_Cache::instance()->disable();
                // Disabling failed
                if ($disabled && is_wp_error($disabled)) {
                    // If disabling failed, we re-enable whatever was disabled, to make sure nothing breaks.
                    if ($previous_settings['enable_page_caching']) WPO_Page_Cache::instance()->enable(true);
                    $return['error'] = array(
                        'code' => $disabled->get_error_code(),
                        'message' => $disabled->get_error_message()
                    );
                } elseif (WPO_Page_Cache::instance()->has_warnings()) {
                    $return['warnings_label'] = __('Page caching was disabled, but with some warnings:', 'wp-optimize');
                    $return['warnings'] = WPO_Page_Cache::instance()->get_errors('warning');
                }
            } else {
                // we need to rebuild advanced-cache.php and add WP_CACHE to wp-config.
                $enabled = WPO_Page_Cache::instance()->enable(true);
                // Enabling failed
                if (is_wp_error($enabled)) {
                    // disable everything, to avoid half enabled things
                    WPO_Page_Cache::instance()->disable();
                    $return['error'] = array(
                        'code' => $enabled->get_error_code(),
                        'message' => $enabled->get_error_message()
                    );

                    if (WPO_Page_Cache::instance()->advanced_cache_file_writing_error) {
                        $return['advanced_cache_file_writing_error'] = true;
                        $return['advanced_cache_file_content'] = WPO_Page_Cache::instance()->advanced_cache_file_content;
                    }
                } elseif (WPO_Page_Cache::instance()->has_warnings()) {
                    $return['warnings_label'] = __('Page caching was enabled, but with some warnings:', 'wp-optimize');
                    $return['warnings'] = WPO_Page_Cache::instance()->get_errors('warning');
                }
            }
            // Override enabled setting value
            $data['cache-settings']['enable_page_caching'] = ($enabled && !is_wp_error($enabled)) || ($previous_settings['enable_page_caching'] && is_wp_error($disabled));
        } else {
            $data['cache-settings']['enable_page_caching'] = $previous_settings['enable_page_caching'];
            $enabled = $previous_settings['enable_page_caching'];
        }

        $skip_if_no_file_yet = !$enabled || is_wp_error($enabled);
        $save_settings_result = WPO_Cache_Config::instance()->update($data['cache-settings'], $skip_if_no_file_yet);

        if ($save_settings_result && !is_wp_error($save_settings_result)) {
            WP_Optimize_Page_Cache_Preloader::instance()->cache_settings_updated($data['cache-settings'], $previous_settings);
            $return['result'] = $save_settings_result;
        } else {
            // Saving the settings returned an error
            if (is_wp_error($save_settings_result)) {
                if (isset($return['error'])) {
                    $return['error']['message'] .= "\n\n".$save_settings_result->get_error_message();
                } else {
                    $return['error'] = array(
                        'code' => $save_settings_result->get_error_code(),
                        'message' => $save_settings_result->get_error_message()
                    );
                }
            }
            $return['result'] = false;
        }

        $return['enabled'] = ($enabled && !is_wp_error($enabled)) || ($previous_settings['enable_page_caching'] && is_wp_error($disabled));

        return $return;
    }

    /**
     * Get information about current cache status. Used in cli commands.
     *
     * @return array
     */
    public function get_status_info() {
        $status = array();

        $status[] = WPO_Page_Cache::instance()->is_enabled() ? __('Caching is enabled', 'wp-optimize') : __('Caching is disabled', 'wp-optimize');

        $preloader_status = WP_Optimize_Page_Cache_Preloader::instance()->get_status_info();
        $status[] = sprintf(__('Current cache size: %s', 'wp-optimize'), $preloader_status['size']);
        $status[] = sprintf(__('Number of files: %s', 'wp-optimize'), $preloader_status['file_count']);

        if (array_key_exists('message', $preloader_status)) $status[] = $preloader_status['message'];

        $status['message'] = join(PHP_EOL, $status);

        return $status;
    }

    /**
     * Enable cache.
     */
    public function enable() {
        $settings = WPO_Cache_Config::instance()->get();
        $settings['enable_page_caching'] = true;
        return $this->format_save_cache_settings_response($this->save_cache_settings(array('cache-settings' => $settings)));
    }

    /**
     * Disable cache.
     */
    public function disable() {
        $settings = WPO_Cache_Config::instance()->get();
        $settings['enable_page_caching'] = false;
        return $this->format_save_cache_settings_response($this->save_cache_settings(array('cache-settings' => $settings)));
    }

    /**
     * Purge WP-Optimize page cache.
     *
     * @return array
     */
    public function purge_page_cache() {

        if (!WP_Optimize()->can_purge_the_cache()) {
            return array(
                'success' => false,
                'message' => __('You do not have permission to purge the cache', 'wp-optimize'),
            );
        }

        $purged = WP_Optimize()->get_page_cache()->purge();
        $cache_size = WP_Optimize()->get_page_cache()->get_cache_size();
        $wpo_page_cache_preloader = WP_Optimize_Page_Cache_Preloader::instance();

        $response = array(
            'success' => $purged,
            'size' => WP_Optimize()->format_size($cache_size['size']),
            'file_count' => $cache_size['file_count'],
        );

        // if scheduled preload enabled then reschedule and run preloader.
        if ($wpo_page_cache_preloader->is_scheduled_preload_enabled()) {
            // cancel preload and reschedule preload action.
            $wpo_page_cache_preloader->cancel_preload();
            $wpo_page_cache_preloader->reschedule_preload();

            // run preloader.
            $wpo_page_cache_preloader->run('scheduled', $response);
        }

        if ($response['success']) {
            $response['message'] = __('Page cache purged successfully', 'wp-optimize');
        }

        return $response;
    }

    /**
     * Run cache preload (for wp-cli).
     *
     * @return array|bool
     */
    public function run_cache_preload_cli() {
        if (!(defined('WP_CLI') && WP_CLI)) return false;

        // define WPO_ADVANCED_CACHE constant as WP-CLI doesn't load advanced-cache.php file
        // but we check this constant value wen detecting status of cache
        if (!defined('WPO_ADVANCED_CACHE')) define('WPO_ADVANCED_CACHE', true);
        // don't interrupt queue processing
        add_filter('updraft_interrupt_tasks_queue_load-url-task', '__return_false', 99);

        // if preloading is running then exit.
        if (WP_Optimize_Page_Cache_Preloader::instance()->is_busy()) {
            return array(
                'success' => false,
                'error' => __('Preloading is currently running in another process.', 'wp-optimize'),
            );
        }

        // set default response.
        $response = array(
            'success' => true,
            'message' => __('All URLs were preloaded into cache successfully', 'wp-optimize'),
        );

        WP_CLI::log(__('Preloading URLs into cache...', 'wp-optimize'));

        return WP_Optimize_Page_Cache_Preloader::instance()->run('manual', $response);
    }

    /**
     * Run cache preload action.
     *
     * @return void|array - Doesn't return anything if run() is successfull (Run() prints a JSON object and closed browser connection) or an array if failed.
     */
    public function run_cache_preload() {
        return WP_Optimize_Page_Cache_Preloader::instance()->run('manual');
    }

    /**
     * Cancel cache preload action.
     *
     * @return array
     */
    public function cancel_cache_preload() {
        WP_Optimize_Page_Cache_Preloader::instance()->cancel_preload();
        return WP_Optimize_Page_Cache_Preloader::instance()->get_status_info();
    }

    /**
     * Get status of cache preload.
     *
     * @return array
     */
    public function get_cache_preload_status() {
        return WP_Optimize_Page_Cache_Preloader::instance()->get_status_info();
    }

    /**
     * Enable or disable browser cache.
     *
     * @param array $params - ['browser_cache_expire' => '1 month 15 days 2 hours' || '' - for disable cache]
     * @return array
     */
    public function enable_browser_cache($params) {
        return WP_Optimize()->get_browser_cache()->enable_browser_cache_command_handler($params);
    }

    /**
     * Format save_cache_settings() result for displaying in WP-CLI console
     *
     * @param array $response
     * @return array
     */
    private function format_save_cache_settings_response($response) {
        $result = array(
            'success' => $response['result'],
        );

        if (isset($response['error'])) {
            $result['success'] = false;
            $result['error'] = $response['error']['message'];
        }

        if ($result['success']) {
            $result['message'] = __('Page cache settings updated successfully.', 'wp-optimize');
        }

        return $result;
    }
}
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Windows NT KPTV 6.2 build 9200 (Windows Server 2012 Datacenter Edition) i586