wp-optimize / wp-optimize.php

wp-optimize.php in WP-Optimize – Cache, Compress images, Minify & Clean database to boost page speed & performance 3.7.0, at wp-optimize.php

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1	<?php
2	/**
3	Plugin Name: WP-Optimize - Clean, Compress, Cache
4	Plugin URI: https://getwpo.com
5	Description: WP-Optimize makes your site fast and efficient. It cleans the database, compresses images and caches pages. Fast sites attract more traffic and users.
6	Version: 3.7.0
7	Update URI: https://wordpress.org/plugins/wp-optimize/
8	Author: TeamUpdraft, DavidAnderson
9	Author URI: https://updraftplus.com
10	Text Domain: wp-optimize
11	Domain Path: /languages
12	License: GPLv2 or later
13	*/
14
15	if (!defined('ABSPATH')) die('No direct access allowed');
16
17	// Check to make sure if WP_Optimize is already call and returns.
18	if (!class_exists('WP_Optimize')) :
19	define('WPO_VERSION', '3.7.0');
20	define('WPO_PLUGIN_URL', plugin_dir_url(__FILE__));
21	define('WPO_PLUGIN_MAIN_PATH', plugin_dir_path(__FILE__));
22	define('WPO_PLUGIN_SLUG', plugin_basename(__FILE__));
23	define('WPO_PREMIUM_NOTIFICATION', false);
24	define('WPO_MINIFY_PHP_VERSION_MET', version_compare(PHP_VERSION, '5.4', '>=') ? true : false);
25	if (!defined('WPO_USE_WEBP_CONVERSION')) define('WPO_USE_WEBP_CONVERSION', true);
26
27	class WP_Optimize {
28
29	public $premium_version_link = 'https://getwpo.com/buy/';
30
31	private $template_directories;
32
33	protected static $_instance = null;
34
35	protected $_cache_init_status = null;
36
37	/**
38	* Class constructor
39	*/
40	public function __construct() {
41	spl_autoload_register(array($this, 'loader'));
42
43	// Checks if premium is installed along with plugins needed.
44	add_action('plugins_loaded', array($this, 'plugins_loaded'), 1);
45
46	register_activation_hook(__FILE__, array('WPO_Activation', 'actions'));
47	register_deactivation_hook(__FILE__, array('WPO_Deactivation', 'actions'));
48	register_uninstall_hook(__FILE__, array('WPO_Uninstall', 'actions'));
49
50	$this->load_admin();
51	add_action('admin_init', array($this, 'admin_init'));
52	add_action('admin_bar_menu', array($this, 'cache_admin_bar'), 100, 1);
53
54	add_action('init', array($this, 'schedule_plugin_cron_tasks'));
55
56	add_filter("plugin_action_links_".plugin_basename(__FILE__), array($this, 'plugin_settings_link'));
57	add_action('wpo_cron_event2', array($this, 'cron_action'));
58	add_filter('cron_schedules', array($this, 'cron_schedules'));
59
60	if (!$this->get_options()->get_option('installed-for', false)) $this->get_options()->update_option('installed-for', time());
61
62	if (!self::is_premium()) {
63	add_action('auto_option_settings', array($this->get_options(), 'auto_option_settings'));
64	}
65
66	add_action('admin_enqueue_scripts', array($this, 'admin_enqueue_scripts'));
67
68	add_action('wp_enqueue_scripts', array($this, 'frontend_enqueue_scripts'));
69
70	$this->load_ajax_handler();
71	WP_Optimize_Heartbeat::get_instance();
72
73	// Show update to Premium notice for non-premium multisite.
74	add_action('wpo_additional_options', array($this, 'show_multisite_update_to_premium_notice'));
75
76	// Action column (show repair button if need).
77	add_filter('wpo_tables_list_additional_column_data', array($this, 'tables_list_additional_column_data'), 15, 2);
78
79	/**
80	* Add action for display Images > Compress images tab.
81	*/
82	add_action('wp_optimize_admin_page_wpo_images_smush', array($this, 'admin_page_wpo_images_smush'));
83
84	include_once(WPO_PLUGIN_MAIN_PATH.'includes/updraftcentral.php');
85
86	include_once(WPO_PLUGIN_MAIN_PATH.'includes/backward-compatibility-functions.php');
87
88	register_shutdown_function(array($this, 'log_fatal_errors'));
89
90	add_action('wpo_admin_before_closing_wrap', array($this, 'load_modal_template'), 20);
91
92	add_action('upgrader_process_complete', array($this, 'detect_active_plugins_and_themes_updates'), 10, 2);
93
94	$import_done_hooks = array(
95	'import_end', // wordpress importer
96	'pmxi_after_xml_import', // wp all import
97	);
98
99	$db_update_hooks = apply_filters('wp_optimize_db_update_hooks', $import_done_hooks);
100
101	foreach ($db_update_hooks as $hook) {
102	add_action($hook, array($this, 'maybe_schedule_update_record_count_event'));
103	}
104	add_action('wpo_update_record_count_event', array($this->get_db_info(), 'wpo_update_record_count'));
105
106	}
107
108	/**
109	* Auto-loads classes.
110	*
111	* @param string $class_name The name of the class.
112	*/
113	private function loader($class_name) {
114	$dirs = $this->get_class_directories();
115
116	foreach ($dirs as $dir) {
117	$class_file = WPO_PLUGIN_MAIN_PATH . trailingslashit($dir) . 'class-' . str_replace('_', '-', strtolower($class_name)) . '.php';
118	if (file_exists($class_file)) {
119	require_once($class_file);
120	return;
121	}
122	}
123
124	// Include PHP Minify - https://github.com/matthiasmullie/minify
125	if (strpos($class_name, 'MatthiasMullie') !== false) {
126	$class_name_parts = explode('\\', $class_name);
127	$class_file = WPO_PLUGIN_MAIN_PATH.'vendor/'.strtolower($class_name_parts[0]).'/'.strtolower(preg_replace('/([a-z])([A-Z])/', '$1-$2', $class_name_parts[1])).'/src/'.implode('/', array_slice($class_name_parts, 2)).'.php';
128	if (file_exists($class_file)) {
129	require_once($class_file);
130	return;
131	}
132	}
133
134	if ('Minify_HTML' == $class_name) {
135	require_once WPO_PLUGIN_MAIN_PATH.'vendor/mrclay/minify/lib/Minify/HTML.php';
136	return;
137	}
138	}
139
140	/**
141	* Returns an array of class directories
142	*
143	* @return array
144	*/
145	private function get_class_directories() {
146	return array(
147	'cache',
148	'compatibility',
149	'includes',
150	'includes/list-tables',
151	'minify',
152	'optimizations',
153	'webp',
154	);
155	}
156
157	/**
158	* Initialize Admin class to load admin UI
159	*/
160	private function load_admin() {
161	$this->get_admin_instance();
162	}
163
164	/**
165	* Returns Admin class instance
166	*
167	* @return WP_Optimize_Admin
168	*/
169	public function get_admin_instance() {
170	return WP_Optimize_Admin::instance();
171	}
172
173	/**
174	* Detect when an active plugin or theme is updated, and trigger an action
175	*
176	* @param object $upgrader_object
177	* @param array $options
178	* @return void
179	*/
180	public function detect_active_plugins_and_themes_updates($upgrader_object, $options) {
181	if (empty($options) \|\| !isset($options['type'])) return;
182
183	$should_purge_cache = false;
184	$skin = $upgrader_object->skin;
185	if ('plugin' === $options['type']) {
186	// A plugin is updated using the default update system (upgrader_overwrote_package is used for the upload method)
187	if (property_exists($skin, 'plugin_active') && $skin->plugin_active) {
188	$should_purge_cache = true;
189	}
190	} elseif ('theme' === $options['type']) {
191	$active_theme = get_stylesheet();
192	$parent_theme = get_template();
193	// A theme is updated using the upload system
194	if (isset($options['action']) && 'install' === $options['action'] && isset($skin->options['overwrite']) && 'update-theme' === $skin->options['overwrite']) {
195	$updated_theme = $upgrader_object->result['destination_name'];
196	// Check if the theme is in use
197	if ($active_theme == $updated_theme \|\| $parent_theme == $updated_theme) {
198	$should_purge_cache = true;
199	}
200	// A theme is updated using the classic update system
201	} elseif (isset($options['action']) && 'update' === $options['action'] && isset($options['themes']) && is_array($options['themes'])) {
202	// Check if the theme is in use
203	if (in_array($active_theme, $options['themes']) \|\| in_array($parent_theme, $options['themes'])) {
204	$should_purge_cache = true;
205	}
206	}
207	}
208
209	/**
210	* Action executed when an active theme or plugin was updated
211	*/
212	if ($should_purge_cache) do_action('wpo_active_plugin_or_theme_updated');
213
214	}
215
216	/**
217	* Sets a flag to indicate an import action is done, if needed
218	*/
219	public function maybe_schedule_update_record_count_event() {
220	if (!wp_next_scheduled('wpo_update_record_count_event')) {
221	wp_schedule_single_event(time() + 60, 'wpo_update_record_count_event');
222	}
223	}
224
225	public function admin_page_wpo_images_smush() {
226	$options = Updraft_Smush_Manager()->get_smush_options();
227	$custom = 90 >= $options['image_quality'] && 65 <= $options['image_quality'];
228	$sites = WP_Optimize()->get_sites();
229	$this->include_template('images/smush.php', false, array('smush_options' => $options, 'custom' => $custom, 'sites' => $sites, 'does_server_allows_local_webp_conversion' => $this->does_server_allows_local_webp_conversion()));
230	$this->include_template('images/smush-popup.php');
231	}
232
233	public static function instance() {
234	if (empty(self::$_instance)) {
235	self::$_instance = new self();
236	}
237	return self::$_instance;
238	}
239
240	public function get_optimizer() {
241	return WP_Optimizer::instance();
242	}
243
244	/**
245	* Adds 3rd party plugin compatibilities.
246	*/
247	public function load_compatibilities() {
248	WPO_Polylang_Compatibility::instance();
249	WPO_Page_Builder_Compatibility::instance();
250	WPO_Custom_Permalink_Compatibility::instance();
251	WPO_TranslatePress_Compatibility::instance();
252
253	do_action('wpo_load_compatibilities');
254	}
255
256	/**
257	* Get and instantiate WP_Optimize_Minify
258	*
259	* @return WP_Optimize_Minify
260	*/
261	public function get_minify() {
262	return WP_Optimize_Minify::instance();
263	}
264
265	public function get_options() {
266	return WP_Optimize_Options::instance();
267	}
268
269	public function get_notices() {
270	return WP_Optimize_Notices::instance();
271	}
272
273	/**
274	* Returns instance if WPO_Page_Cache class.
275	*
276	* @return WPO_Page_Cache
277	*/
278	public function get_page_cache() {
279	return WPO_Page_Cache::instance();
280	}
281
282	/**
283	* Returns instance if WP_Optimize_WebP class.
284	*
285	* @return WP_Optimize_WebP
286	*/
287	public function get_webp_instance() {
288	return WP_Optimize_WebP::get_instance();
289	}
290
291	/**
292	* Detects if the platform is Kinsta or not
293	*
294	* @return bool Returns true if it is Kinsta platform, otherwise returns false
295	*/
296	private function is_kinsta() {
297	return isset($_SERVER['KINSTA_CACHE_ZONE']);
298	}
299
300	/**
301	* Detects whether the server handles cache. eg. Nginx cache
302	*/
303	public function does_server_handles_cache() {
304	return $this->is_kinsta();
305	}
306
307	/**
308	* Detects whether the server supports table optimization.
309	*
310	* Some servers prevent table optimization
311	* because InnoDB engine does not optimize table
312	* instead it drops tables and recreate them
313	* which results in elevated disk write operations
314	*/
315	public function does_server_allows_table_optimization() {
316	return !$this->is_kinsta();
317	}
318
319	/**
320	* Detects whether the server supports local webp conversion tools
321	*/
322	private function does_server_allows_local_webp_conversion() {
323	return !$this->is_kinsta();
324	}
325
326	/**
327	* Create instance of WP_Optimize_Browser_Cache.
328	*
329	* @return WP_Optimize_Browser_Cache
330	*/
331	public function get_browser_cache() {
332	return WP_Optimize_Browser_Cache::instance();
333	}
334
335	/**
336	* Returns WP_Optimize_Database_Information instance.
337	*
338	* @return WP_Optimize_Database_Information
339	*/
340	public function get_db_info() {
341	return WP_Optimize_Database_Information::instance();
342	}
343
344	/**
345	* Returns instance of WP_Optimize_Gzip_Compression.
346	*
347	* @return WP_Optimize_Gzip_Compression
348	*/
349	public function get_gzip_compression() {
350	return WP_Optimize_Gzip_Compression::instance();
351	}
352
353	/**
354	* Create instance of WP_Optimize_Htaccess.
355	*
356	* @param string $htaccess_file absolute path to htaccess file, by default it use .htaccess in WordPress root directory.
357	* @return WP_Optimize_Htaccess
358	*/
359	public static function get_htaccess($htaccess_file = '') {
360	return new WP_Optimize_Htaccess($htaccess_file);
361	}
362
363	/**
364	* Return instance of Updraft_Logger
365	*
366	* @return Updraft_Logger
367	*/
368	public function get_logger() {
369	return Updraft_Logger::instance();
370	}
371
372	/**
373	* Check if the current page belongs to WP-Optimize.
374	*
375	* @return bool
376	*/
377	public function is_wpo_page() {
378	$current_screen = get_current_screen();
379
380	return (bool) preg_match('/wp\-optimize/i', $current_screen->id);
381	}
382
383	/**
384	* Enqueue scripts and styles on WP-Optimize pages.
385	*/
386	public function admin_enqueue_scripts() {
387	$enqueue_version = $this->get_enqueue_version();
388	$min_or_not = $this->get_min_or_not_string();
389	$min_or_not_internal = $this->get_min_or_not_internal_string();
390
391	// Register or enqueue common scripts
392	wp_register_script('wp-optimize-send-command', WPO_PLUGIN_URL.'js/send-command'.$min_or_not_internal.'.js', array(), $enqueue_version);
393	wp_localize_script('wp-optimize-send-command', 'wp_optimize_send_command_data', array('nonce' => wp_create_nonce('wp-optimize-ajax-nonce')));
394	wp_register_script('wp-optimize-block-ui', WPO_PLUGIN_URL.'js/blockUI'.$min_or_not_internal.'.js', array('jquery'), $enqueue_version);
395	wp_enqueue_style('wp-optimize-global', WPO_PLUGIN_URL.'css/wp-optimize-global'.$min_or_not_internal.'.css', array(), $enqueue_version);
396
397	// load scripts and styles only on WP-Optimize pages.
398	if (!$this->is_wpo_page()) return;
399
400	wp_enqueue_script('jquery-serialize-json', WPO_PLUGIN_URL.'js/serialize-json/jquery.serializejson'.$min_or_not.'.js', array('jquery'), $enqueue_version);
401
402	wp_register_script('updraft-queue-js', WPO_PLUGIN_URL.'js/queue'.$min_or_not_internal.'.js', array(), $enqueue_version);
403
404	wp_enqueue_script('wp-optimize-modal', WPO_PLUGIN_URL.'js/modal'.$min_or_not_internal.'.js', array('jquery', 'backbone', 'wp-util'), $enqueue_version);
405	wp_enqueue_script('wp-optimize-cache-js', WPO_PLUGIN_URL.'js/cache'.$min_or_not_internal.'.js', array('wp-optimize-send-command', 'smush-js', 'wp-optimize-heartbeat-js', 'wp-optimize-block-ui'), $enqueue_version);
406	wp_enqueue_script('wp-optimize-admin-js', WPO_PLUGIN_URL.'js/wpoadmin'.$min_or_not_internal.'.js', array('jquery', 'updraft-queue-js', 'wp-optimize-send-command', 'smush-js', 'wp-optimize-modal', 'wp-optimize-cache-js', 'wp-optimize-heartbeat-js'), $enqueue_version);
407	wp_enqueue_style('wp-optimize-admin-css', WPO_PLUGIN_URL.'css/wp-optimize-admin'.$min_or_not_internal.'.css', array(), $enqueue_version);
408	// Using tablesorter to help with organising the DB size on Table Information
409	// https://github.com/Mottie/tablesorter
410	wp_enqueue_script('tablesorter-js', WPO_PLUGIN_URL.'js/tablesorter/jquery.tablesorter'.$min_or_not.'.js', array('jquery', 'wp-optimize-send-command'), $enqueue_version);
411
412	wp_enqueue_script('tablesorter-widgets-js', WPO_PLUGIN_URL.'js/tablesorter/jquery.tablesorter.widgets'.$min_or_not.'.js', array('jquery'), $enqueue_version);
413
414	// wp_enqueue_style('tablesorter-css', WPO_PLUGIN_URL.'css/tablesorter/theme.default.min.css', array(), $enqueue_version);
415
416	$js_variables = $this->wpo_js_translations();
417	$js_variables['loggers_classes_info'] = $this->get_loggers_classes_info();
418
419	wp_localize_script('wp-optimize-admin-js', 'wpoptimize', $js_variables);
420
421	do_action('wpo_premium_scripts_styles', $min_or_not_internal, $min_or_not, $enqueue_version);
422	}
423
424	/**
425	* Enqueue any required front-end scripts
426	*
427	* @return void
428	*/
429	public function frontend_enqueue_scripts() {
430	if (!current_user_can('manage_options') \|\| !is_admin_bar_showing()) return;
431	$enqueue_version = $this->get_enqueue_version();
432	$min_or_not_internal = WP_Optimize()->get_min_or_not_internal_string();
433
434	// Register or enqueue common scripts
435	wp_enqueue_style('wp-optimize-global', WPO_PLUGIN_URL.'css/wp-optimize-global'.$min_or_not_internal.'.css', array(), $enqueue_version);
436	}
437
438	/**
439	* Load Task Manager
440	*/
441	public function get_task_manager() {
442	include_once(WPO_PLUGIN_MAIN_PATH.'vendor/team-updraft/common-libs/src/updraft-tasks/class-updraft-tasks-activation.php');
443
444	Updraft_Tasks_Activation::check_updates();
445
446	include_once(WPO_PLUGIN_MAIN_PATH . 'vendor/team-updraft/common-libs/src/updraft-tasks/class-updraft-task-meta.php');
447	include_once(WPO_PLUGIN_MAIN_PATH . 'vendor/team-updraft/common-libs/src/updraft-tasks/class-updraft-task-options.php');
448	include_once(WPO_PLUGIN_MAIN_PATH . 'vendor/team-updraft/common-libs/src/updraft-tasks/class-updraft-task.php');
449
450	include_once(WPO_PLUGIN_MAIN_PATH . 'includes/class-updraft-smush-task.php');
451	include_once(WPO_PLUGIN_MAIN_PATH . 'includes/class-updraft-smush-manager.php');
452
453	return Updraft_Smush_Manager();
454	}
455
456	/**
457	* Indicate whether we have an associated instance of WP-Optimize Premium or not.
458	*
459	* @returns Boolean
460	*/
461	public static function is_premium() {
462	if (file_exists(WPO_PLUGIN_MAIN_PATH.'premium.php') && function_exists('WP_Optimize_Premium')) {
463	$wp_optimize_premium = WP_Optimize_Premium();
464	if (is_a($wp_optimize_premium, 'WP_Optimize_Premium')) return true;
465	}
466	return false;
467	}
468
469	/**
470	* Check if script running on Apache web server. $is_apache is set in wp-includes/vars.php. Also returns true if the server uses litespeed.
471	*
472	* @return bool
473	*/
474	public function is_apache_server() {
475	global $is_apache;
476	return $is_apache;
477	}
478
479	/**
480	* Check if script running on IIS web server.
481	*
482	* @return bool
483	*/
484	public function is_IIS_server() {
485	global $is_IIS, $is_iis7;
486	return $is_IIS \|\| $is_iis7;
487	}
488
489	/**
490	* Check if Apache module or modules active.
491	*
492	* @param string\|array $module - single Apache module name or list of Apache module names.
493	*
494	* @return bool\|null - if null, the result was indeterminate
495	*/
496	public function is_apache_module_loaded($module) {
497	if (!$this->is_apache_server()) return false;
498
499	if (!function_exists('apache_get_modules')) return null;
500
501	$module_loaded = true;
502
503	if (is_array($module)) {
504	foreach ($module as $single_module) {
505	if (!in_array($single_module, apache_get_modules())) {
506	$module_loaded = false;
507	break;
508	}
509	}
510	} else {
511	$module_loaded = in_array($module, apache_get_modules());
512	}
513
514	return $module_loaded;
515	}
516
517	/**
518	* Checks if this is the premium version and loads it. It also ensures that if the free version is installed then it is disabled with an appropriate error message.
519	*/
520	public function plugins_loaded() {
521
522	if ($this->does_server_handles_cache()) {
523	add_filter('wp_optimize_admin_page_wpo_cache_tabs', array($this, 'filter_cache_tabs'), 99, 1);
524
525	// If newly migrated to server that handles cache, disable wpo cache
526	$cache = $this->get_page_cache();
527	if ($cache->is_enabled()) {
528	$cache->disable();
529	}
530	}
531
532	add_filter('robots_txt', array($this, 'robots_txt'), 99, 1);
533
534	// Run Premium loader if it exists
535	if (file_exists(WPO_PLUGIN_MAIN_PATH.'premium.php') && !class_exists('WP_Optimize_Premium')) {
536	include_once(WPO_PLUGIN_MAIN_PATH.'premium.php');
537	}
538
539	// load defaults
540	WP_Optimize()->get_options()->set_default_options();
541
542	// Initialize loggers.
543	$this->setup_loggers();
544
545	if ($this->is_active('premium') && false !== ($free_plugin = $this->is_active('free'))) {
546	if (!function_exists('deactivate_plugins')) include_once(ABSPATH.'wp-admin/includes/plugin.php');
547	deactivate_plugins($free_plugin);
548
549	// If WPO_ADVANCED_CACHE is defined, we empty advanced-cache.php to regenerate later. Otherwise it contains the path to free.
550	if (defined('WPO_ADVANCED_CACHE') && WPO_ADVANCED_CACHE) {
551	$advanced_cache_filename = trailingslashit(WP_CONTENT_DIR) . 'advanced-cache.php';
552
553	if (!is_file($advanced_cache_filename) && is_writable(dirname($advanced_cache_filename)) \|\| (is_file($advanced_cache_filename) && is_writable($advanced_cache_filename))) {
554	file_put_contents($advanced_cache_filename, '');
555	}
556	}
557
558	// Registers the notice letting the user know it cannot be active if premium is active.
559	add_action('admin_notices', array($this, 'show_admin_notice_premium'));
560	return;
561	}
562
563	// Loads the task manager
564	$this->get_task_manager();
565
566	// Loads the language file.
567	load_plugin_textdomain('wp-optimize', false, dirname(plugin_basename(__FILE__)) . '/languages');
568
569	// Load 3rd party plugin compatibilities.
570	$this->load_compatibilities();
571
572	// Load page cache.
573	$this->get_page_cache();
574	$this->init_page_cache();
575
576	// Include minify
577	$this->get_minify();
578	$this->run_updates();
579
580	// We need this here because webp can be unavailable because of server moves
581	// This deletes already converted webp images and original image file when a media is deleted
582	WP_Optimize_WebP_Images::get_instance();
583
584	// Include WebP
585	if (WPO_USE_WEBP_CONVERSION) {
586	$this->get_webp_instance();
587	}
588
589	// add_filter('updraftcentral_host_plugins', array($this, 'attach_updraftcentral_host'));
590	// if (file_exists(WPO_PLUGIN_MAIN_PATH.'central/factory.php')) include_once(WPO_PLUGIN_MAIN_PATH.'central/factory.php');
591	}
592
593	/**
594	* Attach this wp-optimize plugin as host of the UpdraftCentral libraries
595	* (e.g. "central" folder)
596	*
597	* @param array $hosts List of plugins having the "central" library integrated into them
598	*
599	* @return array
600	*/
601	public function attach_updraftcentral_host($hosts) {
602	$hosts[] = 'wp-optimize';
603	return $hosts;
604	}
605
606	/**
607	* Filter cache tabs (when it is Kinsta)
608	*
609	* @param array $tabs An array of tabs
610	*
611	* @return array $tabs An array of tabs
612	*/
613	public function filter_cache_tabs($tabs) {
614	unset($tabs['preload']);
615	unset($tabs['advanced']);
616	unset($tabs['gzip']);
617	unset($tabs['settings']);
618	return $tabs;
619	}
620
621	/**
622	* Check whether one of free/Premium is active (whether it is this instance or not)
623	*
624	* @param String $which - 'free' or 'premium'
625	*
626	* @return String\|Boolean - plugin path (if installed) or false if not
627	*/
628	private function is_active($which = 'free') {
629	$active_plugins = $this->get_active_plugins();
630	foreach ($active_plugins as $file) {
631	if ('wp-optimize.php' == basename($file)) {
632	$plugin_dir = WP_PLUGIN_DIR.'/'.dirname($file);
633	if (('free' == $which && !file_exists($plugin_dir.'/premium.php')) \|\| ('free' != $which && file_exists($plugin_dir.'/premium.php'))) return $file;
634	}
635	}
636	return false;
637	}
638
639	/**
640	* Gets an array of plugins active on either the current site, or site-wide
641	*
642	* @return Array - a list of plugin paths (relative to the plugin directory)
643	*/
644	private function get_active_plugins() {
645
646	// Gets all active plugins on the current site
647	$active_plugins = get_option('active_plugins');
648
649	if (is_multisite()) {
650	$network_active_plugins = get_site_option('active_sitewide_plugins');
651	if (!empty($network_active_plugins)) {
652	$network_active_plugins = array_keys($network_active_plugins);
653	$active_plugins = array_merge($active_plugins, $network_active_plugins);
654	}
655	}
656
657	return $active_plugins;
658	}
659
660	/**
661	* This function checks whether a specific plugin is installed, and returns information about it
662	*
663	* @param string $name Specify "Plugin Name" to return details about it.
664	* @return array Returns an array of details such as if installed, the name of the plugin and if it is active.
665	*/
666	public function is_installed($name) {
667
668	// Needed to have the 'get_plugins()' function
669	include_once(ABSPATH.'wp-admin/includes/plugin.php');
670
671	// Gets all plugins available
672	$get_plugins = get_plugins();
673
674	$active_plugins = $this->get_active_plugins();
675
676	$plugin_info = array();
677	$plugin_info['installed'] = false;
678	$plugin_info['active'] = false;
679
680	// Loops around each plugin available.
681	foreach ($get_plugins as $key => $value) {
682	// If the plugin name matches that of the specified name, it will gather details.
683	if ($value['Name'] != $name && $value['TextDomain'] != $name) continue;
684	$plugin_info['installed'] = true;
685	$plugin_info['name'] = $key;
686	$plugin_info['version'] = $value['Version'];
687	if (in_array($key, $active_plugins)) {
688	$plugin_info['active'] = true;
689	}
690	break;
691	}
692	return $plugin_info;
693	}
694
695	/**
696	* This is a notice to show users that premium is installed
697	*/
698	public function show_admin_notice_premium() {
699	echo '<div id="wp-optimize-premium-installed-warning" class="error"><p>'.__('WP-Optimize (Free) has been de-activated, because WP-Optimize Premium is active.', 'wp-optimize').'</p></div>';
700	if (isset($_GET['activate'])) unset($_GET['activate']);
701	}
702
703	/**
704	* Show update to Premium notice for non-premium multisite.
705	*/
706	public function show_multisite_update_to_premium_notice() {
707	if (!is_multisite() \|\| self::is_premium()) return;
708
709	echo '<p><a href="'.$this->premium_version_link.'">'.__('New feature: WP-Optimize Premium can now optimize all sites within a multisite install, not just the main one.', 'wp-optimize').'</a></p>';
710	}
711
712	public function admin_init() {
713	$pagenow = $GLOBALS['pagenow'];
714
715	$this->register_template_directories();
716
717	if (('index.php' == $pagenow && current_user_can('update_plugins')) \|\| ('index.php' == $pagenow && defined('WP_OPTIMIZE_FORCE_DASHNOTICE') && WP_OPTIMIZE_FORCE_DASHNOTICE)) {
718	$options = $this->get_options();
719
720	$dismissed_until = $options->get_option('dismiss_dash_notice_until', 0);
721
722	if (file_exists(WPO_PLUGIN_MAIN_PATH . 'index.html')) {
723	$installed = filemtime(WPO_PLUGIN_MAIN_PATH . 'index.html');
724	$installed_for = (time() - $installed);
725	}
726
727	if (($installed && time() > $dismissed_until && $installed_for > (14 * 86400) && !defined('WP_OPTIMIZE_NOADS_B')) \|\| (defined('WP_OPTIMIZE_FORCE_DASHNOTICE') && WP_OPTIMIZE_FORCE_DASHNOTICE)) {
728	add_action('all_admin_notices', array($this, 'show_admin_notice_upgraded'));
729	}
730	}
731
732	if ($this->is_wp_smush_installed()) {
733	add_filter('transient_wp-smush-conflict_check', array($this, 'modify_wp_smush_conflict_check'), 9, 1);
734	}
735	}
736
737	/**
738	* Checks whether the WP Smush plugin is active or not
739	*
740	* @return bool
741	*/
742	private function is_wp_smush_installed() {
743	return is_plugin_active('wp-smushit/wp-smush.php');
744	}
745
746	/**
747	* Remove WPO plugin name from WP Smushit transient value
748	*
749	* @return array $active_plugins
750	*/
751	public function modify_wp_smush_conflict_check($active_plugins) {
752	// This can be boolean value since it is return value of get_transient
753	if (!is_array($active_plugins)) return $active_plugins;
754
755	if (false !== ($key = array_search('WP-Optimize - Clean, Compress, Cache', $active_plugins))) {
756	unset($active_plugins[$key]);
757	}
758	return $active_plugins;
759	}
760
761	/**
762	* Get the install or update notice instance
763	*
764	* @return WP_Optimize_Install_Or_Update_Notice
765	*/
766	public function get_install_or_update_notice() {
767	static $instance = null;
768	if (is_a($instance, 'WP_Optimize_Install_Or_Update_Notice')) return $instance;
769	$instance = new WP_Optimize_Install_Or_Update_Notice();
770	return $instance;
771	}
772
773	/**
774	* Display an admin notice for an upgraded version.
775	*/
776	public function show_admin_notice_upgraded() {
777	$this->include_template('notices/thanks-for-using-main-dash.php', false, array(
778	'is_premium' => WP_Optimize::is_premium()
779	));
780	}
781
782	public function capability_required() {
783	return apply_filters('wp_optimize_capability_required', 'manage_options');
784	}
785
786	/**
787	* Returns array of translations used in javascript code.
788	*
789	* @return array
790	*/
791	public function wpo_js_translations() {
792	$log_message = __('For more details, please check your logs configured in logging destinations settings.', 'wp-optimize');
793	return apply_filters('wpo_js_translations', array(
794	'automatic_backup_before_optimizations' => __('Automatic backup before optimizations', 'wp-optimize'),
795	'error_unexpected_response' => __('An unexpected response was received.', 'wp-optimize'),
796	'optimization_complete' => __('Optimization complete', 'wp-optimize'),
797	'with_warnings' => __('(with warnings - open the browser console for more details)', 'wp-optimize'),
798	'optimizing_table' => __('Optimizing table:', 'wp-optimize'),
799	'run_optimizations' => __('Run optimizations', 'wp-optimize'),
800	'table_optimization_timeout' => 120000,
801	'add' => __('Add', 'wp-optimize'),
802	'cancel' => __('Cancel', 'wp-optimize'),
803	'cancelling' => __('Cancelling...', 'wp-optimize'),
804	'enable' => __('Enable', 'wp-optimize'),
805	'disable' => __('Disable', 'wp-optimize'),
806	'please_select_settings_file' => __('Please, select settings file.', 'wp-optimize'),
807	'are_you_sure_you_want_to_remove_logging_destination' => __('Are you sure you want to remove this logging destination?', 'wp-optimize'),
808	'fill_all_settings_fields' => __('Before saving, you need to complete the currently incomplete settings (or remove them).', 'wp-optimize'),
809	'table_was_not_repaired' => __('%s was not repaired.', 'wp-optimize') . ' ' . $log_message,
810	'table_was_not_deleted' => __('%s was not deleted.', 'wp-optimize') . ' ' . $log_message,
811	'table_was_not_converted' => __('%s was not converted to InnoDB.', 'wp-optimize') . ' ' . $log_message,
812	'please_use_positive_integers' => __('Please use positive integers.', 'wp-optimize'),
813	'please_use_valid_values' => __('Please use valid values.', 'wp-optimize'),
814	'update' => __('Update', 'wp-optimize'),
815	'run_now' => __('Run now', 'wp-optimize'),
816	'starting_preload' => __('Started preload...', 'wp-optimize'),
817	'loading_urls' => __('Loading URLs...', 'wp-optimize'),
818	'current_cache_size' => __('Current cache size:', 'wp-optimize'),
819	'number_of_files' => __('Number of files:', 'wp-optimize'),
820	'toggle_info' => __('Show information', 'wp-optimize'),
821	'delete_file' => __('Delete', 'wp-optimize'),
822	'deleting' => __('Deleting...', 'wp-optimize'),
823	'added_to_list' => __('Added to the list', 'wp-optimize'),
824	'added_notice' => __('The file was added to the list', 'wp-optimize'),
825	'save_notice' => __('Save the changes', 'wp-optimize'),
826	'saving' => __('Saving...', 'wp-optimize'),
827	'clearing_cache' => __('Clearing cache...', 'wp-optimize'),
828	'creating_cache' => __('Creating cache...', 'wp-optimize'),
829	'page_refresh' => __('Refreshing the page to reflect changes...', 'wp-optimize'),
830	'cache_file_not_found' => __('Cache file was not found.', 'wp-optimize'),
831	'settings_have_been_deleted_successfully' => __('WP-Optimize settings have been deleted successfully.', 'wp-optimize'),
832	'loading_data' => __('Loading data...', 'wp-optimize'),
833	'spinner_src' => esc_url(admin_url('images/spinner-2x.gif')),
834	'logo_src' => esc_url(WPO_PLUGIN_URL.'images/notices/wp_optimize_logo.png'),
835	'settings_page_url' => is_multisite() ? network_admin_url('admin.php?page=wpo_settings') : admin_url('admin.php?page=wpo_settings'),
836	'sites' => $this->get_sites(),
837	'user_always_ignores_table_delete_warning' => (get_user_meta(get_current_user_id(), 'wpo-ignores-table-delete-warning', true)) ? true : false,
838	'post_meta_tweak_completed' => __('The tweak has been performed.', 'wp-optimize'),
839	'no_minified_assets' => __('No minified files are present', 'wp-optimize'),
840	'network_site_url' => network_site_url(),
841	'export_settings_file_name' => 'wpoptimize-settings-'.sanitize_title(get_bloginfo('name')).'.json',
842	'import_select_file' => __('You have not yet selected a file to import.', 'wp-optimize'),
843	'import_invalid_json_file' => __('Error: The chosen file is corrupt.', 'wp-optimize') . ' ' . __('Please choose a valid WP-Optimize export file.', 'wp-optimize'),
844	'importing' => __('Importing...', 'wp-optimize'),
845	'importing_data_from' => __('This will import data from:', 'wp-optimize'),
846	'exported_on' => __('Which was exported on:', 'wp-optimize'),
847	'continue_import' => __('Do you want to carry out the import?', 'wp-optimize'),
848	'select_destination' => __('Select destination', 'wp-optimize'),
849	'show_information' => __('Show information', 'wp-optimize'),
850	'hide_information' => __('Hide information', 'wp-optimize'),
851	'please_wait' => __('Please wait...', 'wp-optimize')
852	));
853	}
854
855	/**
856	* Manages the admin bar menu for caching (currently page and minify)
857	*/
858	public function cache_admin_bar($wp_admin_bar) {
859
860	$options = $this->get_options();
861	if (!$options->get_option('enable_cache_in_admin_bar', true)) return;
862
863	/**
864	* The "purge cache" menu items
865	*
866	* @param array $menu_items - The menu items, in the format required by $wp_admin_bar->add_menu()
867	* @param object $wp_admin_bar
868	*/
869	$menu_items = apply_filters('wpo_cache_admin_bar_menu_items', array(), $wp_admin_bar);
870
871	if (empty($menu_items) \|\| !is_array($menu_items)) return;
872
873	$wp_admin_bar->add_menu(array(
874	'id' => 'wpo_purge_cache',
875	'title' => __('Purge cache', 'wp-optimize'),
876	'href' => '#',
877	'meta' => array(
878	'title' => __('Purge cache', 'wp-optimize'),
879	),
880	'parent' => false,
881	));
882
883	foreach ($menu_items as $item) {
884	$wp_admin_bar->add_menu($item);
885	}
886	}
887
888	/**
889	* Add settings link on plugin page
890	*
891	* @param string $links Passing through the URL to be used within the HREF.
892	* @return string Returns the Links.
893	*/
894	public function plugin_settings_link($links) {
895
896	$admin_page_url = $this->get_options()->admin_page_url();
897	$settings_page_url = $this->get_options()->admin_page_url('wpo_settings');
898
899	if (false == self::is_premium()) {
900	$premium_link = '<a href="' . esc_url($this->premium_version_link) . '" target="_blank">' . __('Premium', 'wp-optimize') . '</a>';
901	array_unshift($links, $premium_link);
902	}
903
904	$settings_link = '<a href="' . esc_url($settings_page_url) . '">' . __('Settings', 'wp-optimize') . '</a>';
905	array_unshift($links, $settings_link);
906
907	$optimize_link = '<a href="' . esc_url($admin_page_url) . '">' . __('Optimize', 'wp-optimize') . '</a>';
908	array_unshift($links, $optimize_link);
909	return $links;
910	}
911
912	/**
913	* Action wpo_tables_list_additional_column_data. Output button Optimize in the action column.
914	*
915	* @param string $content String for output to column
916	* @param object $table_info Object with table info.
917	*
918	* @return string
919	*/
920	public function tables_list_additional_column_data($content, $table_info) {
921	if ($table_info->is_needing_repair) {
922	$content .= '<div class="wpo_button_wrap">'
923	. '<button class="button button-secondary run-single-table-repair" data-table="' . esc_attr($table_info->Name) . '">' . __('Repair', 'wp-optimize') . '</button>'
924	. '<img class="optimization_spinner visibility-hidden" src="' . esc_attr(admin_url('images/spinner-2x.gif')) . '" width="20" height="20" alt="...">'
925	. '<span class="optimization_done_icon dashicons dashicons-yes visibility-hidden"></span>'
926	. '</div>';
927	}
928
929	// table belongs to plugin.
930	if ($table_info->can_be_removed) {
931	$content .= '<div>'
932	. '<button class="button button-secondary run-single-table-delete" data-table="' . esc_attr($table_info->Name) . '">' . __('Remove', 'wp-optimize') . '</button>'
933	. '<img class="optimization_spinner visibility-hidden" src="' . esc_attr(admin_url('images/spinner-2x.gif')) . '" width="20" height="20" alt="...">'
934	. '<span class="optimization_done_icon dashicons dashicons-yes visibility-hidden"></span>'
935	. '</div>';
936	}
937
938	// Add option for MyISAM to InnoDB conversion.
939	if ('MyISAM' == $table_info->Engine) {
940	$content .= '<div class="wpo_button_convert wpo_button_wrap">'
941	. '<button class="button button-secondary toinnodb" data-table="' . esc_attr($table_info->Name) . '">' . __('Convert to InnoDB', 'wp-optimize') . '</button>'
942	. '<img class="optimization_spinner visibility-hidden" src="' . esc_attr(admin_url('images/spinner-2x.gif')) . '" width="20" height="20" alt="...">'
943	. '<span class="optimization_done_icon dashicons dashicons-yes visibility-hidden"></span>'
944	. '</div>';
945
946	}
947
948	return $content;
949	}
950
951	/**
952	* Initialize WP-Optimize page cache.
953	*/
954	public function init_page_cache() {
955	if ($this->get_page_cache()->config->get_option('enable_page_caching', false)) {
956	if ((!(defined('WP_CLI') && WP_CLI)) && (!defined('DOING_AJAX') \|\| !DOING_AJAX)) {
957	$this->_cache_init_status = $this->get_page_cache()->enable();
958	}
959	}
960	}
961
962	/**
963	* Get init_page_cache() status.
964	*
965	* @return bool
966	*/
967	public function get_init_page_cache_status() {
968	return $this->_cache_init_status;
969	}
970
971	/**
972	* Schedules cron event based on selected schedule type
973	*
974	* @return void
975	*/
976	public function cron_activate() {
977	$gmt_offset = (int) (3600 * get_option('gmt_offset'));
978
979	$options = $this->get_options();
980
981	if ($options->get_option('schedule') === false) {
982	$options->set_default_options();
983	} else {
984	if ('true' == $options->get_option('schedule')) {
985	if (!wp_next_scheduled('wpo_cron_event2')) {
986	$schedule_type = $options->get_option('schedule-type', 'wpo_weekly');
987
988	// Backward compatibility
989	if ('wpo_otherweekly' == $schedule_type) $schedule_type = 'wpo_fortnightly';
990
991	$this_time = (86400 * 7);
992
993	switch ($schedule_type) {
994	case "wpo_daily":
995	$this_time = 86400;
996	break;
997
998	case "wpo_weekly":
999	$this_time = (86400 * 7);
1000	break;
1001
1002	case "wpo_fortnightly":
1003	$this_time = (86400 * 14);
1004	break;
1005
1006	case "wpo_monthly":
1007	$this_time = (86400 * 30);
1008	break;
1009	}
1010
1011	add_action('wpo_cron_event2', array($this, 'cron_action'));
1012	$result = wp_schedule_event((current_time("timestamp", 0) + $this_time - $gmt_offset), $schedule_type, 'wpo_cron_event2');
1013	WP_Optimize()->log('running wp_schedule_event()');
1014	if (is_wp_error($result)) {
1015	$error_msg = $result->get_error_message();
1016	WP_Optimize()->log($error_msg);
1017	WP_Optimize()->log(print_r($result, true));
1018	} else {
1019	WP_Optimize()->log($result);
1020	}
1021	}
1022	}
1023	}
1024	}
1025
1026	/**
1027	* Clears all cron events
1028	*
1029	* @return void
1030	*/
1031	public function wpo_cron_deactivate() {
1032	$cron_jobs = _get_cron_array();
1033	foreach ($cron_jobs as $job) {
1034	foreach (array_keys($job) as $hook) {
1035	if (preg_match('/^wpo_/', $hook)) wp_unschedule_hook($hook);
1036	}
1037	}
1038	}
1039
1040	/**
1041	* Scheduler public functions to update schedulers
1042	*
1043	* @param array $schedules An array of schedules being passed.
1044	* @return array An array of schedules being returned.
1045	*/
1046	public function cron_schedules($schedules) {
1047	$schedules['wpo_daily'] = array('interval' => 86400, 'display' => 'Once Daily');
1048	$schedules['wpo_weekly'] = array('interval' => 86400 * 7, 'display' => 'Once Weekly');
1049	$schedules['wpo_fortnightly'] = array('interval' => 86400 * 14, 'display' => 'Once Every Fortnight');
1050	$schedules['wpo_monthly'] = array('interval' => 86400 * 30, 'display' => 'Once Every Month');
1051	return $schedules;
1052	}
1053
1054	/**
1055	* Returns count of overdue cron jobs.
1056	*
1057	* @return integer
1058	*/
1059	public function howmany_overdue_crons() {
1060	$how_many_overdue = 0;
1061	if (function_exists('_get_cron_array') \|\| (is_file(ABSPATH.WPINC.'/cron.php') && include_once(ABSPATH.WPINC.'/cron.php') && function_exists('_get_cron_array'))) {
1062	$crons = _get_cron_array();
1063	if (is_array($crons)) {
1064	$timenow = time();
1065	foreach ($crons as $jt => $job) {
1066	if ($jt < $timenow) {
1067	$how_many_overdue++;
1068	}
1069	}
1070	}
1071	}
1072	return $how_many_overdue;
1073	}
1074
1075	/**
1076	* Run updates on plugin activation.
1077	*/
1078	public function run_updates() {
1079	include_once(WPO_PLUGIN_MAIN_PATH.'includes/class-wp-optimize-updates.php');
1080	WP_Optimize_Updates::check_updates();
1081	}
1082
1083	/**
1084	* Returns warning about overdue crons.
1085	*
1086	* @param int $howmany count of overdue crons
1087	* @return string
1088	*/
1089	public function show_admin_warning_overdue_crons($howmany) {
1090	$ret = '<div class="updated below-h2"><p>';
1091	$ret .= '<strong>'.__('Warning', 'wp-optimize').':</strong> '.sprintf(__('WordPress has a number (%d) of scheduled tasks which are overdue.', 'wp-optimize'), $howmany).' '. __('Unless this is a development site, this probably means that the scheduler in your WordPress install is not working.', 'wp-optimize').' <a href="'.apply_filters('wpoptimize_com_link', "https://getwpo.com/faqs/the-scheduler-in-my-wordpress-installation-is-not-working-what-should-i-do/").'">'.__('Read this page for a guide to possible causes and how to fix it.', 'wp-optimize').'</a>';
1092	$ret .= '</p></div>';
1093	return $ret;
1094	}
1095
1096	private function wp_normalize_path($path) {
1097	// Wp_normalize_path is not present before WP 3.9.
1098	if (function_exists('wp_normalize_path')) return wp_normalize_path($path);
1099	// Taken from WP 4.6.
1100	$path = str_replace('\\', '/', $path);
1101	$path = preg_replace('\|(?<=.)/+\|', '/', $path);
1102	if (':' === substr($path, 1, 1)) {
1103	$path = ucfirst($path);
1104	}
1105	return $path;
1106	}
1107
1108	public function get_templates_dir() {
1109	return apply_filters('wp_optimize_templates_dir', $this->wp_normalize_path(WPO_PLUGIN_MAIN_PATH.'templates'));
1110	}
1111
1112	public function get_templates_url() {
1113	return apply_filters('wp_optimize_templates_url', WPO_PLUGIN_URL.'templates');
1114	}
1115
1116	/**
1117	* Return or output view content
1118	*
1119	* @param String $path - path to template, usually relative to templates/ within the WP-O directory
1120	* @param Boolean $return_instead_of_echo - what to do with the results
1121	* @param Array $extract_these - key/value pairs for substitution into the scope of the template
1122	*
1123	* @return String\|Void
1124	*/
1125	public function include_template($path, $return_instead_of_echo = false, $extract_these = array()) {
1126	if ($return_instead_of_echo) ob_start();
1127
1128	if (preg_match('#^([^/]+)/(.*)$#', $path, $matches)) {
1129	$prefix = $matches[1];
1130	$suffix = $matches[2];
1131	if (isset($this->template_directories[$prefix])) {
1132	$template_file = $this->template_directories[$prefix].'/'.$suffix;
1133	}
1134	}
1135
1136	if (!isset($template_file)) {
1137	$template_file = WPO_PLUGIN_MAIN_PATH.'templates/'.$path;
1138	}
1139
1140	$template_file = apply_filters('wp_optimize_template', $template_file, $path);
1141
1142	do_action('wp_optimize_before_template', $path, $template_file, $return_instead_of_echo, $extract_these);
1143
1144	if (!file_exists($template_file)) {
1145	error_log("WP Optimize: template not found: ".$template_file);
1146	echo __('Error:', 'wp-optimize').' '.__('template not found', 'wp-optimize')." (".$path.")";
1147	} else {
1148	extract($extract_these);
1149	// The following are useful variables which can be used in the template.
1150	// They appear as unused, but may be used in the $template_file.
1151	$wpdb = $GLOBALS['wpdb'];// phpcs:ignore VariableAnalysis.CodeAnalysis.VariableAnalysis.UnusedVariable -- $wpdb might be used in the included template
1152	$wp_optimize = $this;// phpcs:ignore VariableAnalysis.CodeAnalysis.VariableAnalysis.UnusedVariable -- $wp_optimize might be used in the included template
1153	$optimizer = $this->get_optimizer();// phpcs:ignore VariableAnalysis.CodeAnalysis.VariableAnalysis.UnusedVariable -- $optimizer might be used in the included template
1154	$options = $this->get_options();// phpcs:ignore VariableAnalysis.CodeAnalysis.VariableAnalysis.UnusedVariable -- $options might be used in the included template
1155	$wp_optimize_notices = $this->get_notices();// phpcs:ignore VariableAnalysis.CodeAnalysis.VariableAnalysis.UnusedVariable -- $wp_optimize_notices might be used in the included template
1156	include $template_file;
1157	}
1158
1159	do_action('wp_optimize_after_template', $path, $template_file, $return_instead_of_echo, $extract_these);
1160
1161	if ($return_instead_of_echo) return ob_get_clean();
1162	}
1163
1164	/**
1165	* Build a list of template directories (stored in self::$template_directories)
1166	*/
1167	private function register_template_directories() {
1168
1169	$template_directories = array();
1170
1171	$templates_dir = $this->get_templates_dir();
1172
1173	if ($dh = opendir($templates_dir)) {
1174	while (($file = readdir($dh)) !== false) {
1175	if ('.' == $file \|\| '..' == $file) continue;
1176	if (is_dir($templates_dir.'/'.$file)) {
1177	$template_directories[$file] = $templates_dir.'/'.$file;
1178	}
1179	}
1180	closedir($dh);
1181	}
1182
1183	// Optimal hook for most extensions to hook into.
1184	$this->template_directories = apply_filters('wp_optimize_template_directories', $template_directories);
1185
1186	}
1187
1188	/**
1189	* Message to debug
1190	*
1191	* @param string $message Message to insert into the log.
1192	* @param array $context array with variables used in $message like in template,
1193	* for ex.
1194	* $message = 'Hello {message}';
1195	* $context = ['message' => 'world']
1196	* 'Hello world' string will be saved in log.
1197	*/
1198	public function log($message, $context = array()) {
1199	$this->get_logger()->debug($message, $context);
1200	}
1201
1202	/**
1203	* Format Bytes Into KB/MB
1204	*
1205	* @param mixed $bytes Number of bytes to be converted.
1206	* @param integer $decimals the number of decimal digits
1207	* @return integer return the correct format size.
1208	*/
1209	public function format_size($bytes, $decimals = 2) {
1210	if (!is_numeric($bytes)) return __('N/A', 'wp-optimize');
1211
1212	if (1073741824 <= $bytes) {
1213	$bytes = number_format($bytes / 1073741824, $decimals) . ' GB';
1214	} elseif (1048576 <= $bytes) {
1215	$bytes = number_format($bytes / 1048576, $decimals) . ' MB';
1216	} elseif (1024 <= $bytes) {
1217	$bytes = number_format($bytes / 1024, $decimals) . ' KB';
1218	} elseif (1 < $bytes) {
1219	$bytes = $bytes . ' bytes';
1220	} elseif (1 == $bytes) {
1221	$bytes = $bytes . ' byte';
1222	} else {
1223	$bytes = '0 bytes';
1224	}
1225
1226	return $bytes;
1227	}
1228
1229	/**
1230	* Format a timestamp into a juman readable date time
1231	*
1232	* @param int $timestamp
1233	* @return string
1234	*/
1235	public function format_date_time($timestamp) {
1236	return date_i18n(get_option('date_format').' @ '.get_option('time_format'), ($timestamp + get_option('gmt_offset') * 3600));
1237	}
1238
1239	/**
1240	* Executed this function on cron event.
1241	*
1242	* @return void
1243	*/
1244	public function cron_action() {
1245
1246	$optimizer = $this->get_optimizer();
1247	$options = $this->get_options();
1248
1249	$this->log('WPO: Starting cron_action()');
1250	$options->update_option('last-optimized', time());
1251	if ('true' == $options->get_option('schedule')) {
1252	$this_options = $options->get_option('auto');
1253
1254	// Currently the output of the optimizations is not saved/used/logged.
1255	$optimizer->do_optimizations($this_options, 'auto');
1256	}
1257
1258	}
1259
1260	/**
1261	* Schedule cron tasks used by plugin.
1262	*
1263	* @return void
1264	*/
1265	public function schedule_plugin_cron_tasks() {
1266	if (!wp_next_scheduled('wpo_weekly_cron_tasks')) {
1267	wp_schedule_event(current_time("timestamp", 0), 'weekly', 'wpo_weekly_cron_tasks');
1268	}
1269
1270	add_action('wpo_weekly_cron_tasks', array($this, 'do_weekly_cron_tasks'));
1271	}
1272
1273	/**
1274	* Do plugin background tasks.
1275	*
1276	* @return void
1277	*/
1278	public function do_weekly_cron_tasks() {
1279	// add tasks here.
1280	$this->get_db_info()->update_plugin_json();
1281	}
1282
1283	/**
1284	* This will customize a URL with a correct Affiliate link
1285	* This function can be update to suit any URL as longs as the URL is passed
1286	*
1287	* @param String $url - URL to be check to see if it an updraftplus match.
1288	* @param String $text - Text to be entered within the href a tags.
1289	* @param String $html - Any specific HTML to be added. Supplied parameter will not be escaped in this function. Provide escaped, safe HTML
1290	* @param String\|Array $attrs - Specify the HTML attributes as an array or string. Use the array format for multiple attributes (e.g., array( "class" => "lorem-ipsum", "title" => "Highlighting text" )), and use the string format for a single attribute (e.g., 'class="lorem-ipsum"').
1291	* @param Boolean $return_instead_of_echo - if set, then the result will be returned, not echo-ed.
1292	* @return String\|void
1293	*/
1294	public function wp_optimize_url($url, $text = '', $html = '', $attrs = '', $return_instead_of_echo = false) {
1295	// Check if the URL is UpdraftPlus.
1296	$url = $this->maybe_add_affiliate_params($url); // Return URL - check if there is HTML such as images.
1297
1298	// Check if the variable $text is empty (null value included), otherwise assign $html.
1299	$content = empty($text) ? $html : esc_html($text);
1300
1301	// Check if $attrs is an array to convert the attributes into a string line.
1302	$str_attrs = '';
1303	if (is_array($attrs)) {
1304	foreach ($attrs as $attr => $value) {
1305	$str_attrs .= $attr . '="' . esc_attr($value) . '" ';
1306	}
1307	} else {
1308	// If $attrs is empty, the explode function will only return an empty array.
1309	$attrs = explode('=', $attrs);
1310	// Check if $attrs in positions 1 and 2 are not empty and exist; otherwise, return an empty string.
1311	$str_attrs = !empty($attrs[0]) && !empty($attrs[1]) ? $attrs[0] . '="' . esc_attr(str_replace('"', '', $attrs[1])) . '"' : '';
1312	}
1313
1314	// Check if it is necessary to add a target value if the url is external
1315	$is_external_url = $this->is_external_url($url);
1316	if ($is_external_url) {
1317	$str_attrs = preg_replace('/\s+target="_blank"/i', '', $str_attrs);
1318	$str_attrs .= ' target="_blank"';
1319	}
1320
1321	$result = sprintf(
1322	'<a href="%s" %s>%s</a>',
1323	esc_url($url),
1324	$str_attrs,
1325	$content
1326	);
1327
1328	if ($return_instead_of_echo) return $result;
1329	echo $result;
1330	}
1331
1332	/**
1333	* Check if a URL is external
1334	*
1335	* @param string $url
1336	* @return string
1337	*/
1338	public function is_external_url($url) {
1339	if (empty($url)) {
1340	return false;
1341	}
1342
1343	$current_domain = wp_parse_url(home_url(), PHP_URL_HOST);
1344	$url = wp_parse_url($url, PHP_URL_HOST);
1345
1346	// Compare the domains and return true if they are different
1347	return $current_domain !== $url;
1348	}
1349
1350	/**
1351	* Get an URL with an eventual affiliate ID
1352	*
1353	* @param string $url
1354	* @return string
1355	*/
1356	public function maybe_add_affiliate_params($url) {
1357	// Check if the URL is UpdraftPlus.
1358	if (false !== strpos($url, '//updraftplus.com')) {
1359	// Set URL with Affiliate ID.
1360	$url = add_query_arg(array('afref' => $this->get_notices()->get_affiliate_id()), $url);
1361
1362	// Apply filters.
1363	$url = apply_filters('wpoptimize_updraftplus_com_link', $url);
1364	}
1365	return apply_filters('wpoptimize_maybe_add_affiliate_params', $url);
1366	}
1367
1368	/**
1369	* Setup WPO logger(s)
1370	*/
1371	public function setup_loggers() {
1372
1373	$logger = $this->get_logger();
1374	$loggers = $this->wpo_loggers();
1375
1376	if (!empty($loggers)) {
1377	foreach ($loggers as $_logger) {
1378	$logger->add_logger($_logger);
1379	}
1380	}
1381
1382	add_action('wp_optimize_after_optimizations', array($this, 'after_optimizations_logger_action'));
1383	}
1384
1385	/**
1386	* Run logger actions after all optimizations done
1387	*/
1388	public function after_optimizations_logger_action() {
1389	$loggers = $this->get_logger()->get_loggers();
1390	if (!empty($loggers)) {
1391	foreach ($loggers as $logger) {
1392	if (is_a($logger, 'Updraft_Email_Logger')) {
1393	$logger->flush_log();
1394	}
1395	}
1396	}
1397	}
1398
1399	/**
1400	* Returns list of WPO loggers instances
1401	* Apply filter wp_optimize_loggers
1402	*
1403	* @return array
1404	*/
1405	public function wpo_loggers() {
1406
1407	$loggers = array();
1408	$loggers_classes_by_id = array();
1409	$options_keys = array();
1410
1411	$loggers_classes = $this->get_loggers_classes();
1412
1413	foreach ($loggers_classes as $logger_class => $source) {
1414	$loggers_classes_by_id[strtolower($logger_class)] = $logger_class;
1415	}
1416
1417	$options = $this->get_options();
1418
1419	$saved_loggers = $options->get_option('logging');
1420	$logger_additional_options = $options->get_option('logging-additional');
1421
1422	// create loggers classes instances.
1423	if (!empty($saved_loggers)) {
1424	// check for previous version options format.
1425	$keys = array_keys($saved_loggers);
1426
1427	// if options stored in old format then reformat it.
1428	if (false == is_numeric($keys[0])) {
1429	$_saved_loggers = array();
1430	foreach ($saved_loggers as $logger_id => $enabled) {
1431	if ($enabled) {
1432	$_saved_loggers[] = $logger_id;
1433	}
1434	}
1435
1436	// fill email with admin.
1437	if (array_key_exists('updraft_email_logger', $saved_loggers) && $saved_loggers['updraft_email_logger']) {
1438	$logger_additional_options['updraft_email_logger'] = array(
1439	get_option('admin_email')
1440	);
1441	}
1442
1443	$saved_loggers = $_saved_loggers;
1444	}
1445
1446	foreach ($saved_loggers as $i => $logger_id) {
1447
1448	if (!array_key_exists($logger_id, $loggers_classes_by_id)) continue;
1449
1450	$logger_class = $loggers_classes_by_id[$logger_id];
1451
1452	$logger = new $logger_class();
1453
1454	$logger_options = $logger->get_options_list();
1455
1456	if (!empty($logger_options)) {
1457	foreach (array_keys($logger_options) as $option_name) {
1458	if (array_key_exists($option_name, $options_keys)) {
1459	$options_keys[$option_name]++;
1460	} else {
1461	$options_keys[$option_name] = 0;
1462	}
1463
1464	$option_value = isset($logger_additional_options[$option_name][$options_keys[$option_name]]) ? $logger_additional_options[$option_name][$options_keys[$option_name]] : '';
1465
1466	// if options in old format then get correct value.
1467	if ('' === $option_value && array_key_exists($logger_id, $logger_additional_options)) {
1468	$option_value = array_shift($logger_additional_options[$logger_id]);
1469	}
1470
1471	$logger->set_option($option_name, $option_value);
1472	}
1473	}
1474
1475	// check if logger is active.
1476	$active = (!is_array($logger_additional_options) \|\| (array_key_exists('active', $logger_additional_options) && empty($logger_additional_options['active'][$i]))) ? false : true;
1477
1478	if ($active) {
1479	$logger->enable();
1480	} else {
1481	$logger->disable();
1482	}
1483
1484	$loggers[] = $logger;
1485	}
1486	}
1487
1488	$loggers = apply_filters('wp_optimize_loggers', $loggers);
1489
1490	return $loggers;
1491	}
1492
1493	/**
1494	* Returns associative array with logger class name in a key and path to class file in a value.
1495	*
1496	* @return array
1497	*/
1498	public function get_loggers_classes() {
1499	$loggers_classes = array(
1500	'Updraft_PHP_Logger' => WPO_PLUGIN_MAIN_PATH . 'includes/class-updraft-php-logger.php',
1501	'Updraft_Email_Logger' => WPO_PLUGIN_MAIN_PATH . 'includes/class-updraft-email-logger.php',
1502	'Updraft_Ring_Logger' => WPO_PLUGIN_MAIN_PATH . 'includes/class-updraft-ring-logger.php'
1503	);
1504
1505	$loggers_classes = apply_filters('wp_optimize_loggers_classes', $loggers_classes);
1506
1507	if (!empty($loggers_classes)) {
1508	foreach ($loggers_classes as $logger_class => $logger_file) {
1509	if (!class_exists($logger_class)) {
1510	if (is_file($logger_file)) {
1511	include_once($logger_file);
1512	}
1513	}
1514	}
1515	}
1516
1517	return $loggers_classes;
1518	}
1519
1520	/**
1521	* Returns information about all loggers classes.
1522	*
1523	* @return array
1524	*/
1525	public function get_loggers_classes_info() {
1526	$loggers_classes = $this->get_loggers_classes();
1527
1528	$loggers_classes_info = array();
1529
1530	if (!empty($loggers_classes)) {
1531	foreach (array_keys($loggers_classes) as $logger_class_name) {
1532
1533	if (!class_exists($logger_class_name)) continue;
1534
1535	$logger_id = strtolower($logger_class_name);
1536	$logger_class = new $logger_class_name();
1537
1538	$loggers_classes_info[$logger_id] = array(
1539	'description' => $logger_class->get_description(),
1540	'available' => $logger_class->is_available(),
1541	'allow_multiple' => $logger_class->is_allow_multiple(),
1542	'options' => $logger_class->get_options_list()
1543	);
1544	}
1545	}
1546
1547	return $loggers_classes_info;
1548	}
1549
1550	/**
1551	* Returns true if optimization works in multisite mode
1552	*
1553	* @return boolean
1554	*/
1555	public function is_multisite_mode() {
1556	return (is_multisite() && self::is_premium());
1557	}
1558
1559	/**
1560	* Returns true if current user can run optimizations.
1561	*
1562	* @return bool
1563	*/
1564	public function can_run_optimizations() {
1565	// we don't check permissions for cron jobs.
1566	if (defined('DOING_CRON') && DOING_CRON) return true;
1567
1568	if (self::is_premium() && false == user_can(get_current_user_id(), 'wpo_run_optimizations')) return false;
1569	return true;
1570	}
1571
1572	/**
1573	* Returns true if current user can manage plugin options.
1574	*
1575	* @return bool
1576	*/
1577	public function can_manage_options() {
1578	if (self::is_premium() && false == user_can(get_current_user_id(), 'wpo_manage_settings')) return false;
1579	return true;
1580	}
1581
1582	/**
1583	* Returns list of all sites in multisite
1584	*
1585	* @return array
1586	*/
1587	public function get_sites() {
1588	$sites = array();
1589	// check if function get_sites exists (since 4.6.0) else use wp_get_sites.
1590	if (function_exists('get_sites')) {
1591	$sites = get_sites(array('network_id' => null, 'deleted' => 0, 'number' => 999999));
1592	} elseif (function_exists('wp_get_sites')) {
1593	$sites = wp_get_sites(array('network_id' => null, 'deleted' => 0, 'limit' => 999999));
1594	}
1595	return $sites;
1596	}
1597
1598	/**
1599	* Returns script memory limit in megabytes.
1600	*
1601	* @param bool $memory_limit
1602	* @return int
1603	*/
1604	public function get_memory_limit($memory_limit = false) {
1605	// Returns in megabytes
1606	if (false == $memory_limit) $memory_limit = ini_get('memory_limit');
1607	$memory_limit = rtrim($memory_limit);
1608
1609	return $this->return_bytes($memory_limit);
1610	}
1611
1612	/**
1613	* Returns free memory in bytes.
1614	*
1615	* @return int
1616	*/
1617	public function get_free_memory() {
1618	return $this->get_memory_limit() - memory_get_usage();
1619	}
1620
1621	/**
1622	* Checks PHP memory_limit and WP_MAX_MEMORY_LIMIT values and return minimal.
1623	*
1624	* @return int memory limit in bytes.
1625	*/
1626	public function get_script_memory_limit() {
1627	$memory_limit = $this->get_memory_limit();
1628
1629	if (defined('WP_MAX_MEMORY_LIMIT')) {
1630	$wp_memory_limit = $this->get_memory_limit(WP_MAX_MEMORY_LIMIT);
1631
1632	if ($wp_memory_limit > 0 && $wp_memory_limit < $memory_limit) {
1633	$memory_limit = $wp_memory_limit;
1634	}
1635	}
1636
1637	return $memory_limit;
1638	}
1639
1640	/**
1641	* Returns max packet size for database.
1642	*
1643	* @return int\|string
1644	*/
1645	public function get_max_packet_size() {
1646	global $wpdb;
1647	static $mp = 0;
1648
1649	if ($mp > 0) return $mp;
1650
1651	$mp = (int) $wpdb->get_var("SELECT @@session.max_allowed_packet");
1652	// Default to 1MB
1653	$mp = (is_numeric($mp) && $mp > 0) ? $mp : 1048576;
1654	// 32MB
1655	if ($mp < 33554432) {
1656	$save = $wpdb->show_errors(false);
1657	@$wpdb->query("SET GLOBAL max_allowed_packet=33554432");// phpcs:ignore Generic.PHP.NoSilencedErrors.Discouraged -- suppress errors from displaying
1658	$wpdb->show_errors($save);
1659
1660	$mp = (int) $wpdb->get_var("SELECT @@session.max_allowed_packet");
1661	// Default to 1MB
1662	$mp = (is_numeric($mp) && $mp > 0) ? $mp : 1048576;
1663	}
1664
1665	return $mp;
1666	}
1667
1668	/**
1669	* Converts shorthand memory notation value to bytes.
1670	* From http://php.net/manual/en/function.ini-get.php
1671	*
1672	* @param string $val shorthand memory notation value.
1673	*/
1674	public function return_bytes($val) {
1675	$val = trim($val);
1676	$last = strtolower($val[strlen($val)-1]);
1677	$val = (int) $val;
1678	switch ($last) {
1679	case 'g':
1680	$val *= 1024;
1681	// no break
1682	case 'm':
1683	$val *= 1024;
1684	// no break
1685	case 'k':
1686	$val *= 1024;
1687	}
1688
1689	return $val;
1690	}
1691
1692	/**
1693	* Log fatal errors to defined log destinations.
1694	*/
1695	public function log_fatal_errors() {
1696	$last_error = error_get_last();
1697
1698	if (isset($last_error['type']) && E_ERROR === $last_error['type']) {
1699	$this->get_logger()->critical($last_error['message']);
1700	}
1701	}
1702
1703	/**
1704	* Close browser connection and continue script work. - Taken from UpdraftPlus
1705	*
1706	* @param array $txt Response to browser; this must be JSON (or if not, alter the Content-Type header handling below)
1707	* @return void
1708	*/
1709	public function close_browser_connection($txt = '') {
1710	if (!headers_sent()) {
1711	// Close browser connection so that it can resume AJAX polling
1712	header('Content-Length: '.(empty($txt) ? '0' : 4+strlen($txt)));
1713	header('Content-Type: application/json');
1714	header('Connection: close');
1715	header('Content-Encoding: none');
1716	}
1717
1718	if (session_id()) session_write_close();
1719	echo "\r\n\r\n";
1720	echo $txt;
1721	// These two added - 19-Feb-15 - started being required on local dev machine, for unknown reason (probably some plugin that started an output buffer).
1722	$ob_level = ob_get_level();
1723	while ($ob_level > 0) {
1724	ob_end_flush();
1725	$ob_level--;
1726	}
1727	flush();
1728	if (function_exists('fastcgi_finish_request')) fastcgi_finish_request();
1729	if (function_exists('litespeed_finish_request')) litespeed_finish_request();
1730	}
1731
1732	/**
1733	* Try to change PHP script time limit.
1734	*/
1735	public function change_time_limit() {
1736	$time_limit = (defined('WP_OPTIMIZE_SET_TIME_LIMIT') && WP_OPTIMIZE_SET_TIME_LIMIT > 15) ? WP_OPTIMIZE_SET_TIME_LIMIT : 1800;
1737
1738	@set_time_limit($time_limit); // phpcs:ignore Generic.PHP.NoSilencedErrors.Discouraged -- Try to reduce the chances of PHP self-terminating via reaching max_execution_time.
1739	}
1740
1741	/**
1742	* Does the request come from UDC
1743	*
1744	* @return boolean
1745	*/
1746	public function is_updraft_central_request() {
1747	return defined('UPDRAFTCENTRAL_COMMAND') && UPDRAFTCENTRAL_COMMAND;
1748	}
1749
1750	/**
1751	* Does the data need to be included in this request. Currently only true if the request is made from UpdraftCentral.
1752	*
1753	* @return boolean
1754	*/
1755	public function template_should_include_data() {
1756	/**
1757	* Filters wether data should be included in certain templates or not.
1758	*/
1759	return apply_filters('wpo_template_should_include_data', $this->is_updraft_central_request());
1760	}
1761
1762	/**
1763	* Load the templates for the modal window
1764	*/
1765	public function load_modal_template() {
1766	$this->include_template('modal.php');
1767	}
1768
1769	/**
1770	* Delete transients and semaphores data from options table.
1771	*/
1772	public function delete_transients_and_semaphores() {
1773	global $wpdb;
1774
1775	$masks = array(
1776	'updraft_locked_wpo_%',
1777	'updraft_unlocked_wpo_%',
1778	'updraft_last_lock_time_wpo_%',
1779	'updraft_semaphore_wpo_%',
1780	'wpo_locked_%',
1781	'wpo_unlocked_%',
1782	'wpo_last_lock_time_%',
1783	'wpo_semaphore_%',
1784	'_transient_timeout_wpo_%',
1785	'_transient_wpo_%',
1786	'updraft_lock_wpo_%',
1787	'wpo_last_scheduled_%',
1788	);
1789
1790	$where_parts = array();
1791	foreach ($masks as $mask) {
1792	$where_parts[] = "(`option_name` LIKE '{$mask}')";
1793	}
1794
1795	$wpdb->query("DELETE FROM {$wpdb->options} WHERE " . join(' OR ', $where_parts));
1796	}
1797
1798	/**
1799	* Prevents bots from indexing plugins list
1800	*/
1801	public function robots_txt($output) {
1802	$upload_dir = wp_upload_dir();
1803	$path = parse_url($upload_dir['baseurl']);
1804	$output .= "\nUser-agent: *";
1805	$output .= "\nDisallow: " . str_replace($path['scheme'].'://'.$path['host'], '', $upload_dir['baseurl']) . "/wpo/wpo-plugins-tables-list.json\n";
1806	return $output;
1807	}
1808
1809	/**
1810	* Returns desired enqueue version string
1811	*
1812	* @return string Enqueue version as string
1813	*/
1814	public function get_enqueue_version() {
1815	return (defined('WP_DEBUG') && WP_DEBUG) ? WPO_VERSION.'.'.time() : WPO_VERSION;
1816	}
1817
1818	/**
1819	* Returns script suffix string
1820	*
1821	* @return string empty or `.min` suffix string
1822	*/
1823	public function get_min_or_not_string() {
1824	return (defined('SCRIPT_DEBUG') && SCRIPT_DEBUG) ? '' : '.min';
1825	}
1826
1827	/**
1828	* Returns script suffix string with WPO_VERSION
1829	*
1830	* @return string empty or min suffix with wpo_version string
1831	*/
1832	public function get_min_or_not_internal_string() {
1833	return (defined('SCRIPT_DEBUG') && SCRIPT_DEBUG) ? '' : '-' . str_replace('.', '-', WPO_VERSION) . '.min';
1834	}
1835
1836	/**
1837	* Instantiate Ajax handling class
1838	*/
1839	private function load_ajax_handler() {
1840	WPO_Ajax::get_instance();
1841	}
1842	}
1843
1844	/**
1845	* Unschedule specific tasks:
1846	* `wpo_cron_event2` => DB optimizations
1847	* `wpo_weekly_cron_tasks` => ex: plugin.json auto update
1848	*
1849	* @return void
1850	*/
1851	function wpo_cron_deactivate() {
1852	WP_Optimize()->log('running wpo_cron_deactivate()');
1853	wp_clear_scheduled_hook('wpo_cron_event2');
1854	wp_clear_scheduled_hook('wpo_weekly_cron_tasks');
1855	}
1856
1857	function WP_Optimize() {
1858	return WP_Optimize::instance();
1859	}
1860
1861	endif;
1862
1863	$GLOBALS['wp_optimize'] = WP_Optimize();
1864