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<?php |
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|
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/** |
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* Plugin Name: Object Cache 4 everyone |
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* Description: Memcached or disk backend support for the WP Object Cache. Memcached server running and PHP Memcached class needed for better performance. No configuration needed, runs automatically |
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* Plugin URI: https://wordpress.org/plugins/object-cache-4-everyone |
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* Author: fpuenteonline |
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* Version: 2.3 |
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* Author URI: https://twitter.com/fpuenteonline |
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* License: GPLv2 or later |
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* License URI: http://www.gnu.org/licenses/old-licenses/gpl-2.0.html |
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* |
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* This program is free software; you can redistribute it and/or modify it under the terms of the GNU |
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* General Public License version 2, as published by the Free Software Foundation. You may NOT assume |
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* that you can use any other version of the GPL. |
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* |
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*/ |
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|
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if (!defined('ABSPATH')) { |
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exit; // Exit if accessed directly. |
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} |
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|
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//Delete object-cache.php |
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include_once 'oc4-deactivation.php'; |
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register_deactivation_hook(__FILE__, 'oc4everyone_deactivation'); |
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|
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// First install. |
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if (!function_exists('oc4everyone_plugins_loaded_activation')) { |
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function oc4everyone_admin_notices_no_class_exists() |
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{ |
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if (defined('OC4EVERYONE_DISABLE_DISK_CACHE') && OC4EVERYONE_DISABLE_DISK_CACHE) { |
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echo '<div class="notice notice-warning is-dismissible"><p><strong>Object Cache 4 everyone</strong> ' . esc_html__('needs PHP Memcached class installed for better performance.') . '</p></div>'; |
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if (defined('WP_DEBUG') && WP_DEBUG) { |
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error_log('Object Cache 4 everyone::needs PHP Memcached class installed for better performance.'); |
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} |
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} else { |
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echo '<div class="notice notice-warning is-dismissible"><p><strong>Object Cache 4 everyone</strong> ' . esc_html__('needs PHP Memcached class installed for better performance. Running disk support instead.') . '</p></div>'; |
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if (defined('WP_DEBUG') && WP_DEBUG) { |
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error_log('Object Cache 4 everyone::needs PHP Memcached class installed for better performance. Running disk support instead.'); |
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} |
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} |
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} |
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function oc4everyone_admin_notices_no_server_running() |
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{ |
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if (defined('OC4EVERYONE_DISABLE_DISK_CACHE') && OC4EVERYONE_DISABLE_DISK_CACHE) { |
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echo '<div class="notice notice-warning is-dismissible"><p><strong>Object Cache 4 everyone</strong> ' . esc_html__('needs PHP Memcached class installed for better performance.') . '</p></div>'; |
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if (defined('WP_DEBUG') && WP_DEBUG) { |
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error_log('Object Cache 4 everyone::needs PHP Memcached class installed for better performance.'); |
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} |
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} else { |
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echo '<div class="notice notice-warning is-dismissible"><p><strong>Object Cache 4 everyone</strong> ' . esc_html__('needs PHP Memcached class installed for better performance. Running disk support instead.') . '</p></div>'; |
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if (defined('WP_DEBUG') && WP_DEBUG) { |
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error_log('Object Cache 4 everyone::needs PHP Memcached class installed for better performance. Running disk support instead.'); |
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} |
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} |
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} |
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function oc4everyone_admin_notices_object() |
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{ |
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if (defined('WP_DEBUG') && WP_DEBUG) { |
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error_log('Object Cache 4 everyone::has detected another WP Object Cache instance running. Plugin is deactivated now.'); |
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} |
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echo '<div class="notice notice-error is-dismissible"><p><strong>Object Cache 4 everyone</strong> ' . esc_html__('has detected another WP Object Cache instance running. Plugin is deactivated now.') . '<br/><code>' . WP_CONTENT_DIR . DIRECTORY_SEPARATOR . 'object-cache.php' . '</code></p></div>'; |
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if (isset($_GET['activate'])) { |
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unset($_GET['activate']); |
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} |
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} |
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function oc4everyone_admin_notices_ok_disk() |
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{ |
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if (defined('WP_DEBUG') && WP_DEBUG) { |
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error_log('Object Cache 4 everyone::running Disk. Thanks for using.'); |
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} |
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echo '<div class="notice notice-success is-dismissible"><p>'; |
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echo '<strong>Object Cache 4 everyone</strong> ' . esc_html__('running. Thanks for using.'); |
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echo ' '; |
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echo esc_html__('Disk external object cache running'); |
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echo '</p></div>'; |
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|
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if (isset($_GET['activate'])) { |
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unset($_GET['activate']); |
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} |
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} |
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function oc4everyone_admin_notices_ok_memcached() |
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{ |
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if (defined('WP_DEBUG') && WP_DEBUG) { |
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error_log('Object Cache 4 everyone::running Memcached. Thanks for using.'); |
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} |
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echo '<div class="notice notice-success is-dismissible"><p>'; |
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echo '<strong>Object Cache 4 everyone</strong> ' . esc_html__('running. Thanks for using.'); |
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echo ' '; |
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echo esc_html__('Memcached Server running'); |
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echo '</p></div>'; |
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|
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if (isset($_GET['activate'])) { |
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unset($_GET['activate']); |
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} |
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} |
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function oc4everyone_admin_init_deactivate_itself() |
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{ |
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if (defined('WP_DEBUG') && WP_DEBUG) { |
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error_log('Object Cache 4 everyone::oc4everyone_admin_init_deactivate_itself'); |
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} |
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if (isset($_GET['activate'])) { |
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unset($_GET['activate']); |
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} |
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deactivate_plugins(plugin_basename(__FILE__), true); |
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} |
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|
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function oc4everyone_plugins_loaded_activation() |
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{ |
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if (defined('OC4EVERYONE_PREDEFINED_SERVER')) { |
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return; // Nothing needed, everything works. |
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} |
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|
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if (!current_user_can('activate_plugins') || !is_admin()) { |
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return; // Only for admin users and dashboard access. |
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} |
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|
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// Check object-cache.php exists. |
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if (file_exists(WP_CONTENT_DIR . DIRECTORY_SEPARATOR . 'object-cache.php')) { |
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add_action('admin_notices', 'oc4everyone_admin_notices_object', PHP_INT_MAX); |
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add_action('admin_init', 'oc4everyone_admin_init_deactivate_itself', PHP_INT_MAX); |
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return; |
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} |
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|
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//Check Memcached class |
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if (class_exists('Memcached')) { |
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//Detecting first Memcached server running |
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$memcached_servers = array( |
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'127.0.0.1:11211', |
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'127.0.0.1:11212', |
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'127.0.0.1:11213', |
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'127.0.0.1:20000', |
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'127.0.0.1:20001' |
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); |
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|
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if (defined('OC4EVERYONE_MEMCACHED_SERVER')) { |
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$memcached_servers = array(OC4EVERYONE_MEMCACHED_SERVER); |
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} else { |
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// Try SG Memcached server first. |
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// Get the account name. |
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if (function_exists('get_current_user') && get_current_user() !== '') { |
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$account_name = get_current_user(); |
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|
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// Generate the port file path. |
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$port_file_path = "/home/{$account_name}/.SGCache/cache_status"; |
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if (file_exists($port_file_path) && is_readable($port_file_path)) { |
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$string = file_get_contents($port_file_path); |
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|
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preg_match('#memcache\|\|([0-9]+)#', $string, $matches); |
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|
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// Return empty string if there is no match. |
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if (!empty($matches[1])) { |
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// Override current list. |
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$memcached_servers = array( |
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'127.0.0.1:' . $matches[1] |
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); |
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} |
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} |
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} |
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} |
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|
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$found_server = ''; |
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foreach ($memcached_servers as $server) { |
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$temp_Memcached = new Memcached(); |
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list($node, $port) = explode(':', $server); |
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$temp_Memcached->addServer($node, $port); |
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|
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// Checks server. |
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$temp_Memcached->getVersion(); |
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if ($temp_Memcached->getResultCode() === 0) { |
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$found_server = $server; |
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break; |
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} |
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} |
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if ($found_server !== '') { |
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|
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// Memcached + Memcached Server running. |
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|
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// Copy object-cache.php + define('OC4EVERYONE_PREDEFINED_SERVER', $server); line. |
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$template = file_get_contents(__DIR__ . DIRECTORY_SEPARATOR . 'object-cache-memcached-template.php'); |
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|
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$template = "<?php |
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/** |
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* Plugin Name: Object Cache 4 everyone - Memcached |
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* Plugin URI: https://wordpress.org/plugins/object-cache-4-everyone |
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* Author: fpuenteonline |
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* Author URI: https://twitter.com/fpuenteonline |
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* |
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*/ |
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?>" . $template; |
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$template .= '//Detected memcached server - ' . date('d/m/Y G:i:s', current_time('timestamp', 0)) . PHP_EOL; |
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$template .= "define('OC4EVERYONE_PREDEFINED_SERVER', '$found_server');" . PHP_EOL; |
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|
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$template .= "if (! defined('WP_CACHE_KEY_SALT')) {" . PHP_EOL; |
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global $wpdb; |
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$template .= "define('WP_CACHE_KEY_SALT', '" . DB_NAME . DB_USER . $wpdb->prefix . "');" . PHP_EOL; |
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$template .= "}" . PHP_EOL; |
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|
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file_put_contents(WP_CONTENT_DIR . DIRECTORY_SEPARATOR . 'object-cache.php', $template); |
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|
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add_action('admin_notices', 'oc4everyone_admin_notices_ok_memcached', PHP_INT_MAX); |
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|
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// Flush cache on plugin activation. |
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wp_cache_flush(); |
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|
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return; |
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} else { |
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// Memcached - Memcached Server not running. |
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add_action('admin_notices', 'oc4everyone_admin_notices_no_server_running', PHP_INT_MAX); |
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} |
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// class_exists('Memcached'). |
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} else { |
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add_action('admin_notices', 'oc4everyone_admin_notices_no_class_exists', PHP_INT_MAX); |
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} |
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|
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if (defined('OC4EVERYONE_DISABLE_DISK_CACHE') && OC4EVERYONE_DISABLE_DISK_CACHE) { |
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add_action('admin_init', 'oc4everyone_admin_init_deactivate_itself', PHP_INT_MAX); |
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return; |
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} |
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|
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// Copy object-cache.php + define('OC4EVERYONE_PREDEFINED_SERVER', ''); line. |
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$template = file_get_contents(__DIR__ . DIRECTORY_SEPARATOR . 'object-cache-disk-template.php'); |
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|
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$template = "<?php |
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/** |
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* Plugin Name: Object Cache 4 everyone - Disk |
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* Plugin URI: https://wordpress.org/plugins/object-cache-4-everyone |
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* Author: fpuenteonline |
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* Author URI: https://twitter.com/fpuenteonline |
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* |
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*/ |
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?>" . $template; |
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|
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$template .= '//No detected memcached server - ' . date('d/m/Y G:i:s', current_time('timestamp', 0)) . PHP_EOL; |
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$template .= "define('OC4EVERYONE_PREDEFINED_SERVER', '');" . PHP_EOL; |
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|
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$template .= "if (! defined('WP_CACHE_KEY_SALT')) {" . PHP_EOL; |
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$template .= "define('WP_CACHE_KEY_SALT', '" . filemtime(__FILE__) . "');" . PHP_EOL; |
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$template .= "}" . PHP_EOL; |
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|
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file_put_contents(WP_CONTENT_DIR . DIRECTORY_SEPARATOR . 'object-cache.php', $template); |
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|
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add_action('admin_notices', 'oc4everyone_admin_notices_ok_disk', PHP_INT_MAX); |
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|
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// Flush cache on plugin activation. |
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wp_cache_flush(); |
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} |
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} |
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add_action('plugins_loaded', 'oc4everyone_plugins_loaded_activation'); |
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|
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|
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function oc4everyone_add_server_info($links_array, $plugin_file_name, $plugin_data, $status) |
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{ |
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global $wp_object_cache; |
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|
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if (strpos($plugin_file_name, basename(__FILE__)) && class_exists('Memcached') && method_exists($wp_object_cache, 'getStats') && file_exists(WP_CONTENT_DIR . DIRECTORY_SEPARATOR . 'object-cache.php')) { |
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// Extra check. |
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if(!defined('OC4EVERYONE_PREDEFINED_SERVER') || !array_key_exists(OC4EVERYONE_PREDEFINED_SERVER, $wp_object_cache->getStats())){ |
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return $links_array; |
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} |
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|
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$hits = $wp_object_cache->getStats()[OC4EVERYONE_PREDEFINED_SERVER]['get_hits']; |
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// Extra check. |
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if($hits == 0) { |
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return $links_array; |
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} |
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$misses = $wp_object_cache->getStats()[OC4EVERYONE_PREDEFINED_SERVER]['get_misses']; |
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$total = $hits + $misses; |
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$found = @round((100 / $total) * $hits, 2); |
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|
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if (defined('WP_DEBUG') && WP_DEBUG) { |
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error_log('Object Cache 4 everyone::Memcached Server running'); |
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} |
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$nonce = wp_create_nonce('flush_memcached_nonce'); |
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|
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$links_array[] = '<a href="' . esc_url(admin_url('admin-post.php?action=oc4flush_memcached&nonce=' . $nonce)) . '"><strong>' . esc_html__('Flush cache') . '</strong></a>' . |
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'<br/><br/>' . |
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esc_html__('Memcached Server running:') . ' <strong><code style="background-color: inherit;">' . OC4EVERYONE_PREDEFINED_SERVER . '</code></strong>' . '<br/>' . |
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esc_html__('Cache Hit Ratio') . ' <strong><code style="background-color: inherit;">' . $found . '%</code></strong>' . '<br/>' . |
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esc_html__('Uptime:') . ' <strong><code style="background-color: inherit;">' . secondsToHumanReadable($wp_object_cache->getStats()[OC4EVERYONE_PREDEFINED_SERVER]['uptime']) . '</strong></code>' . '<br/>' . |
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esc_html__('Current Unique Items / Total Items:') . ' <strong><code style="background-color: inherit;">' . $wp_object_cache->getStats()[OC4EVERYONE_PREDEFINED_SERVER]['curr_items'] . ' / ' . $wp_object_cache->getStats()[OC4EVERYONE_PREDEFINED_SERVER]['total_items'] . '</strong></code>' . '<br/>'; |
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} |
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|
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return $links_array; |
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} |
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add_filter('plugin_row_meta', 'oc4everyone_add_server_info', PHP_INT_MAX, 4); |
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|
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|
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add_action('admin_post_oc4flush_memcached', 'oc4flush_memcached'); |
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function oc4flush_memcached() { |
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if (!class_exists('Memcached')) { |
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wp_die(esc_html__('Failed to flush Memcached server')); |
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} |
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// Verify the nonce. |
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if (isset($_GET['nonce']) && wp_verify_nonce(sanitize_key($_GET['nonce']), 'flush_memcached_nonce')) { |
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// Flush cache. |
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global $wp_object_cache; |
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error_log(print_r($wp_object_cache->getStats()[OC4EVERYONE_PREDEFINED_SERVER], true)); |
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$wp_object_cache->flush(); |
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|
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$memcached = new Memcached(); |
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list($node, $port) = explode(':', OC4EVERYONE_PREDEFINED_SERVER); |
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$memcached->addServer($node, $port, PHP_INT_MAX); |
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|
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if ($memcached->flush(0)) { |
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if (defined('WP_DEBUG') && WP_DEBUG) { |
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error_log('Object Cache 4 everyone::Memcached server flushed.'); |
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} |
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wp_redirect(admin_url('plugins.php')); |
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exit; |
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} else { |
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wp_die(esc_html__('Failed to flush Memcached server')); |
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} |
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} else { |
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wp_die(esc_html__('Nonce verification failed. Access denied.')); |
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} |
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} |
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|
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|
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function secondsToHumanReadable($seconds) |
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{ |
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$units = array( |
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"D" => 86400, |
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"H" => 3600, |
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"M" => 60, |
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"S" => 1 |
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); |
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|
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$output = ""; |
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|
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foreach ($units as $unit => $value) { |
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if ($seconds >= $value) { |
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$numUnits = floor($seconds / $value); |
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$output .= $numUnits . " " . $unit . " "; |
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$seconds %= $value; |
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} |
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} |
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|
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return trim($output); |
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} |
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|
