wp-optimize / wp-optimize.php

wp-optimize.php in WP-Optimize – Cache, Compress images, Minify & Clean database to boost page speed & performance 3.0.18, 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: 3.0.18
7	Author: David Anderson, Ruhani Rabin, Team Updraft
8	Author URI: https://updraftplus.com
9	Text Domain: wp-optimize
10	Domain Path: /languages
11	License: GPLv2 or later
12	*/
13
14	if (!defined('ABSPATH')) die('No direct access allowed');
15
16	// Check to make sure if WP_Optimize is already call and returns.
17	if (!class_exists('WP_Optimize')) :
18	define('WPO_VERSION', '3.0.18');
19	define('WPO_PLUGIN_URL', plugin_dir_url(__FILE__));
20	define('WPO_PLUGIN_MAIN_PATH', plugin_dir_path(__FILE__));
21	define('WPO_PREMIUM_NOTIFICATION', false);
22	define('WPO_MINIFY_PHP_VERSION_MET', version_compare(PHP_VERSION, '5.4', '>=') ? true : false);
23
24	class WP_Optimize {
25
26	public $premium_version_link = 'https://getwpo.com/buy/';
27
28	private $template_directories;
29
30	protected static $_instance = null;
31
32	protected static $_optimizer_instance = null;
33
34	protected static $_options_instance = null;
35
36	protected static $_minify_instance = null;
37
38	protected static $_notices_instance = null;
39
40	protected static $_logger_instance = null;
41
42	protected static $_browser_cache = null;
43
44	protected static $_db_info = null;
45
46	protected static $_cache = null;
47
48	protected static $_gzip_compression = null;
49
50	/**
51	* Class constructor
52	*/
53	public function __construct() {
54
55	// Checks if premium is installed along with plugins needed.
56	add_action('plugins_loaded', array($this, 'plugins_loaded'), 1);
57
58	register_activation_hook(__FILE__, 'wpo_activation_actions');
59	register_deactivation_hook(__FILE__, 'wpo_deactivation_actions');
60	register_uninstall_hook(__FILE__, 'wpo_uninstall_actions');
61
62	add_action('admin_init', array($this, 'admin_init'));
63	add_action('admin_menu', array($this, 'admin_menu'));
64
65	add_filter("plugin_action_links_".plugin_basename(__FILE__), array($this, 'plugin_settings_link'));
66	add_action('wpo_cron_event2', array($this, 'cron_action'));
67	add_filter('cron_schedules', array($this, 'cron_schedules'));
68
69	if (!$this->is_premium()) {
70	add_action('auto_option_settings', array($this->get_options(), 'auto_option_settings'));
71	}
72
73	add_action('admin_enqueue_scripts', array($this, 'admin_enqueue_scripts'));
74
75	add_action('wp_ajax_wp_optimize_ajax', array($this, 'wp_optimize_ajax_handler'));
76
77	// Show update to Premium notice for non-premium multisite.
78	add_action('wpo_additional_options', array($this, 'show_multisite_update_to_premium_notice'));
79
80	// Action column (show repair button if need).
81	add_filter('wpo_tables_list_additional_column_data', array($this, 'tables_list_additional_column_data'), 15, 2);
82
83	/**
84	* Add action for display Images > Compress images tab.
85	*/
86	add_action('wp_optimize_admin_page_wpo_images_smush', array($this, 'admin_page_wpo_images_smush'));
87
88	include_once(WPO_PLUGIN_MAIN_PATH.'/includes/updraftcentral.php');
89
90	include_once(WPO_PLUGIN_MAIN_PATH.'/includes/backward-compatibility-functions.php');
91
92	register_shutdown_function(array($this, 'log_fatal_errors'));
93
94	$this->schedule_plugin_cron_tasks();
95	}
96
97	public function admin_page_wpo_images_smush() {
98	$options = Updraft_Smush_Manager()->get_smush_options();
99	$custom = 100 == $options['image_quality'] \|\| 90 == $options['image_quality'] ? false : true;
100	$this->include_template('images/smush.php', false, array('smush_options' => $options, 'custom' => $custom));
101	}
102
103	public static function instance() {
104	if (empty(self::$_instance)) {
105	self::$_instance = new self();
106	}
107	return self::$_instance;
108	}
109
110	public static function get_optimizer() {
111	if (empty(self::$_optimizer_instance)) {
112	if (!class_exists('WP_Optimizer')) include_once(WPO_PLUGIN_MAIN_PATH.'/includes/class-wp-optimizer.php');
113	self::$_optimizer_instance = new WP_Optimizer();
114	}
115	return self::$_optimizer_instance;
116	}
117
118	/**
119	* Get and instanciate WP_Optimize_Minify
120	*
121	* @return WP_Optimize_Minify
122	*/
123	public function get_minify() {
124	if (empty(self::$_minify_instance)) {
125	if (!class_exists('WP_Optimize_Minify')) {
126	include_once WPO_PLUGIN_MAIN_PATH.'/minify/class-wp-optimize-minify.php';
127	}
128	self::$_minify_instance = new WP_Optimize_Minify();
129	}
130	return self::$_minify_instance;
131	}
132
133	public static function get_options() {
134	if (empty(self::$_options_instance)) {
135	if (!class_exists('WP_Optimize_Options')) include_once(WPO_PLUGIN_MAIN_PATH.'/includes/class-wp-optimize-options.php');
136	self::$_options_instance = new WP_Optimize_Options();
137	}
138	return self::$_options_instance;
139	}
140
141	public static function get_notices() {
142	if (empty(self::$_notices_instance)) {
143	if (!class_exists('WP_Optimize_Notices')) include_once(WPO_PLUGIN_MAIN_PATH.'/includes/wp-optimize-notices.php');
144	self::$_notices_instance = new WP_Optimize_Notices();
145	}
146	return self::$_notices_instance;
147	}
148
149	/**
150	* Returns instance if WPO_Page_Cache class.
151	*
152	* @return WPO_Page_Cache
153	*/
154	public function get_page_cache() {
155	if (!class_exists('WPO_Page_Cache')) include_once(WPO_PLUGIN_MAIN_PATH.'/cache/class-wpo-page-cache.php');
156
157	return WPO_Page_Cache::instance();
158	}
159
160	/**
161	* Create instance of WP_Optimize_Browser_Cache.
162	*
163	* @return WP_Optimize_Browser_Cache
164	*/
165	public static function get_browser_cache() {
166	if (empty(self::$_browser_cache)) {
167	if (!class_exists('WP_Optimize_Browser_Cache')) include_once(WPO_PLUGIN_MAIN_PATH.'/includes/class-wp-optimize-browser-cache.php');
168	self::$_browser_cache = new WP_Optimize_Browser_Cache();
169	}
170	return self::$_browser_cache;
171	}
172
173	/**
174	* Returns WP_Optimize_Database_Information instance.
175	*
176	* @return WP_Optimize_Database_Information
177	*/
178	public function get_db_info() {
179	if (empty(self::$_db_info)) {
180	if (!class_exists('WP_Optimize_Database_Information')) include_once(WPO_PLUGIN_MAIN_PATH.'/includes/wp-optimize-database-information.php');
181	self::$_db_info = new WP_Optimize_Database_Information();
182	}
183	return self::$_db_info;
184	}
185
186	/**
187	* Returns instance of WP_Optimize_Gzip_Compression.
188	*
189	* @return WP_Optimize_Gzip_Compression
190	*/
191	static public function get_gzip_compression() {
192	if (empty(self::$_gzip_compression)) {
193	if (!class_exists('WP_Optimize_Gzip_Compression')) include_once(WPO_PLUGIN_MAIN_PATH.'/includes/class-wp-optimize-gzip-compression.php');
194	self::$_gzip_compression = new WP_Optimize_Gzip_Compression();
195	}
196	return self::$_gzip_compression;
197	}
198
199	/**
200	* Create instance of WP_Optimize_Htaccess.
201	*
202	* @param string $htaccess_file absolute path to htaccess file, by default it use .htaccess in WordPress root directory.
203	* @return WP_Optimize_Htaccess
204	*/
205	public static function get_htaccess($htaccess_file = '') {
206	if (!class_exists('WP_Optimize_Cache')) {
207	include_once(WPO_PLUGIN_MAIN_PATH . '/includes/class-wp-optimize-htaccess.php');
208	}
209
210	return new WP_Optimize_Htaccess($htaccess_file);
211	}
212
213	/**
214	* Return instance of Updraft_Logger
215	*
216	* @return Updraft_Logger
217	*/
218	public static function get_logger() {
219	if (empty(self::$_logger_instance)) {
220	include_once(WPO_PLUGIN_MAIN_PATH.'/includes/class-updraft-logger.php');
221	self::$_logger_instance = new Updraft_Logger();
222	}
223	return self::$_logger_instance;
224	}
225
226	/**
227	* Enqueue scripts and styles on WP-Optimize pages.
228	*/
229	public function admin_enqueue_scripts() {
230	$current_screen = get_current_screen();
231
232	$enqueue_version = (defined('WP_DEBUG') && WP_DEBUG) ? WPO_VERSION.'.'.time() : WPO_VERSION;
233	$min_or_not = (defined('SCRIPT_DEBUG') && SCRIPT_DEBUG) ? '' : '.min';
234	$min_or_not_internal = (defined('SCRIPT_DEBUG') && SCRIPT_DEBUG) ? '' : '-'. str_replace('.', '-', WPO_VERSION). '.min';
235
236	// Register or enqueue common scripts
237	wp_register_script('wp-optimize-send-command', WPO_PLUGIN_URL.'js/send-command'.$min_or_not_internal.'.js', array(), $enqueue_version);
238
239	// load scripts and styles only on WP-Optimize pages.
240	if (!preg_match('/wp\-optimize/i', $current_screen->id)) return;
241
242	wp_enqueue_script('jquery-serialize-json', WPO_PLUGIN_URL.'js/serialize-json/jquery.serializejson'.$min_or_not.'.js', array('jquery'), $enqueue_version);
243
244	wp_register_script('updraft-queue-js', WPO_PLUGIN_URL.'js/queue'.$min_or_not_internal.'.js', array(), $enqueue_version);
245	wp_enqueue_script('wp-optimize-cache-js', WPO_PLUGIN_URL.'js/cache'.$min_or_not_internal.'.js', array('wp-optimize-send-command', 'smush-js'), $enqueue_version);
246	wp_enqueue_script('wp-optimize-admin-js', WPO_PLUGIN_URL.'js/wpoadmin'.$min_or_not_internal.'.js', array('jquery', 'updraft-queue-js', 'wp-optimize-send-command', 'smush-js'), $enqueue_version);
247	wp_enqueue_style('wp-optimize-admin-css', WPO_PLUGIN_URL.'css/wp-optimize-admin'.$min_or_not_internal.'.css', array(), $enqueue_version);
248	// Using tablesorter to help with organising the DB size on Table Information
249	// https://github.com/Mottie/tablesorter
250	wp_enqueue_script('tablesorter-js', WPO_PLUGIN_URL.'js/tablesorter/jquery.tablesorter'.$min_or_not.'.js', array('jquery', 'wp-optimize-send-command'), $enqueue_version);
251
252	wp_enqueue_script('tablesorter-widgets-js', WPO_PLUGIN_URL.'js/tablesorter/jquery.tablesorter.widgets'.$min_or_not.'.js', array('jquery'), $enqueue_version);
253
254	// wp_enqueue_style('tablesorter-css', WPO_PLUGIN_URL.'css/tablesorter/theme.default.min.css', array(), $enqueue_version);
255
256	$js_variables = $this->wpo_js_translations();
257	$js_variables['loggers_classes_info'] = $this->get_loggers_classes_info();
258
259	wp_localize_script('wp-optimize-admin-js', 'wpoptimize', $js_variables);
260
261	do_action('wpo_premium_scripts_styles', $min_or_not, $enqueue_version);
262	}
263
264	/**
265	* Load Task Manager
266	*/
267	public function get_task_manager() {
268	include_once(WPO_PLUGIN_MAIN_PATH.'/vendor/team-updraft/common-libs/src/updraft-tasks/class-updraft-tasks-activation.php');
269
270	Updraft_Tasks_Activation::check_updates();
271
272	include_once(WPO_PLUGIN_MAIN_PATH . '/vendor/team-updraft/common-libs/src/updraft-tasks/class-updraft-task-meta.php');
273	include_once(WPO_PLUGIN_MAIN_PATH . '/vendor/team-updraft/common-libs/src/updraft-tasks/class-updraft-task-options.php');
274	include_once(WPO_PLUGIN_MAIN_PATH . '/vendor/team-updraft/common-libs/src/updraft-tasks/class-updraft-task.php');
275
276	include_once(WPO_PLUGIN_MAIN_PATH . '/includes/class-updraft-smush-task.php');
277	include_once(WPO_PLUGIN_MAIN_PATH . '/includes/class-updraft-smush-manager.php');
278
279	return Updraft_Smush_Manager();
280	}
281
282	/**
283	* Indicate whether we have an associated instance of WP-Optimize Premium or not.
284	*
285	* @returns Boolean
286	*/
287	public static function is_premium() {
288	if (file_exists(WPO_PLUGIN_MAIN_PATH.'/premium.php') && function_exists('WP_Optimize_Premium')) {
289	$wp_optimize_premium = WP_Optimize_Premium();
290	if (is_a($wp_optimize_premium, 'WP_Optimize_Premium')) return true;
291	}
292	return false;
293	}
294
295	/**
296	* 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.
297	*
298	* @return bool
299	*/
300	public function is_apache_server() {
301	global $is_apache;
302	return $is_apache;
303	}
304
305	/**
306	* Check if script running on IIS web server.
307	*
308	* @return bool
309	*/
310	public function is_IIS_server() {
311	global $is_IIS, $is_iis7;
312	return $is_IIS \|\| $is_iis7;
313	}
314
315	/**
316	* Check if Apache module or modules active.
317	*
318	* @param string\|array $module - single Apache module name or list of Apache module names.
319	*
320	* @return bool\|null - if null, the result was indeterminate
321	*/
322	public function is_apache_module_loaded($module) {
323	if (!$this->is_apache_server()) return false;
324
325	if (!function_exists('apache_get_modules')) return null;
326
327	$module_loaded = true;
328
329	if (is_array($module)) {
330	foreach ($module as $single_module) {
331	if (!in_array($single_module, apache_get_modules())) {
332	$module_loaded = false;
333	break;
334	}
335	}
336	} else {
337	$module_loaded = in_array($module, apache_get_modules());
338	}
339
340	return $module_loaded;
341	}
342
343	/**
344	* Checks if this is the premium version and loads it. It also ensures that if the free version is installed then it is disabled with an appropriate error message.
345	*/
346	public function plugins_loaded() {
347
348	if (is_multisite()) {
349	add_action('network_admin_menu', array($this, 'admin_menu'));
350	}
351
352	// Run Premium loader if it exists
353	if (file_exists(WPO_PLUGIN_MAIN_PATH.'/premium.php') && !class_exists('WP_Optimize_Premium')) {
354	include_once(WPO_PLUGIN_MAIN_PATH.'/premium.php');
355	}
356
357	// load defaults
358	WP_Optimize()->get_options()->set_default_options();
359
360	// Initialize loggers.
361	$this->setup_loggers();
362
363	if ($this->is_active('premium') && false !== ($free_plugin = $this->is_active('free'))) {
364	if (!function_exists('deactivate_plugins')) include_once(ABSPATH.'wp-admin/includes/plugin.php');
365	deactivate_plugins($free_plugin);
366
367	// If WPO_ADVANCED_CACHE is defined, we empty advanced-cache.php to regenerate later. Otherwise it contains the path to free.
368	if (defined('WPO_ADVANCED_CACHE') && WPO_ADVANCED_CACHE) {
369	$advanced_cache_filename = trailingslashit(WP_CONTENT_DIR) . 'advanced-cache.php';
370
371	if (!is_file($advanced_cache_filename) && is_writable(dirname($advanced_cache_filename)) \|\| (is_file($advanced_cache_filename) && is_writable($advanced_cache_filename))) {
372	file_put_contents($advanced_cache_filename, '');
373	}
374	}
375
376	// Registers the notice letting the user know it cannot be active if premium is active.
377	add_action('admin_notices', array($this, 'show_admin_notice_premium'));
378	return;
379	}
380
381	// Loads the task manager
382	$this->get_task_manager();
383
384	// Loads the language file.
385	load_plugin_textdomain('wp-optimize', false, dirname(plugin_basename(__FILE__)) . '/languages');
386
387	// Load page cache.
388	$this->get_page_cache();
389	$this->init_page_cache();
390
391	// Include minify
392	// $this->get_minify();
393	$this->run_updates();
394	}
395
396	/**
397	* Check whether one of free/Premium is active (whether it is this instance or not)
398	*
399	* @param String $which - 'free' or 'premium'
400	*
401	* @return String\|Boolean - plugin path (if installed) or false if not
402	*/
403	private function is_active($which = 'free') {
404	$active_plugins = $this->get_active_plugins();
405	foreach ($active_plugins as $file) {
406	if ('wp-optimize.php' == basename($file)) {
407	$plugin_dir = WP_PLUGIN_DIR.'/'.dirname($file);
408	if (('free' == $which && !file_exists($plugin_dir.'/premium.php')) \|\| ('free' != $which && file_exists($plugin_dir.'/premium.php'))) return $file;
409	}
410	}
411	return false;
412	}
413
414	/**
415	* Gets an array of plugins active on either the current site, or site-wide
416	*
417	* @return Array - a list of plugin paths (relative to the plugin directory)
418	*/
419	private function get_active_plugins() {
420
421	// Gets all active plugins on the current site
422	$active_plugins = get_option('active_plugins');
423
424	if (is_multisite()) {
425	$network_active_plugins = get_site_option('active_sitewide_plugins');
426	if (!empty($network_active_plugins)) {
427	$network_active_plugins = array_keys($network_active_plugins);
428	$active_plugins = array_merge($active_plugins, $network_active_plugins);
429	}
430	}
431
432	return $active_plugins;
433	}
434
435	/**
436	* This function checks whether a specific plugin is installed, and returns information about it
437	*
438	* @param string $name Specify "Plugin Name" to return details about it.
439	* @return array Returns an array of details such as if installed, the name of the plugin and if it is active.
440	*/
441	public function is_installed($name) {
442
443	// Needed to have the 'get_plugins()' function
444	include_once(ABSPATH.'wp-admin/includes/plugin.php');
445
446	// Gets all plugins available
447	$get_plugins = get_plugins();
448
449	$active_plugins = $this->get_active_plugins();
450
451	$plugin_info['installed'] = false;
452	$plugin_info['active'] = false;
453
454	// Loops around each plugin available.
455	foreach ($get_plugins as $key => $value) {
456	// If the plugin name matches that of the specified name, it will gather details.
457	if ($value['Name'] != $name && $value['TextDomain'] != $name) continue;
458	$plugin_info['installed'] = true;
459	$plugin_info['name'] = $key;
460	$plugin_info['version'] = $value['Version'];
461	if (in_array($key, $active_plugins)) {
462	$plugin_info['active'] = true;
463	}
464	break;
465	}
466	return $plugin_info;
467	}
468
469	/**
470	* This is a notice to show users that premium is installed
471	*/
472	public function show_admin_notice_premium() {
473	echo '<div id="wp-optimize-premium-installed-warning" class="error"><p>'.__('WP-Optimize (Free) has been de-activated, because WP-Optimize Premium is active.', 'wp-optimize').'</p></div>';
474	if (isset($_GET['activate'])) unset($_GET['activate']);
475	}
476
477	/**
478	* Show update to Premium notice for non-premium multisite.
479	*/
480	public function show_multisite_update_to_premium_notice() {
481	if (!is_multisite() \|\| self::is_premium()) return;
482
483	echo '<p><a href="'.$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>';
484	}
485
486	public function admin_init() {
487	$pagenow = $GLOBALS['pagenow'];
488
489	$this->register_template_directories();
490
491	if (('index.php' == $pagenow && current_user_can('update_plugins')) \|\| ('index.php' == $pagenow && defined('WP_OPTIMIZE_FORCE_DASHNOTICE') && WP_OPTIMIZE_FORCE_DASHNOTICE)) {
492	$options = $this->get_options();
493
494	$dismissed_until = $options->get_option('dismiss_dash_notice_until', 0);
495
496	if (file_exists(WPO_PLUGIN_MAIN_PATH . '/index.html')) {
497	$installed = filemtime(WPO_PLUGIN_MAIN_PATH . '/index.html');
498	$installed_for = (time() - $installed);
499	}
500
501	if (($installed && time() > $dismissed_until && $installed_for > (14 * 86400) && !defined('WP_OPTIMIZE_NOADS_B')) \|\| (defined('WP_OPTIMIZE_FORCE_DASHNOTICE') && WP_OPTIMIZE_FORCE_DASHNOTICE)) {
502	add_action('all_admin_notices', array($this, 'show_admin_notice_upgradead'));
503	}
504	}
505	$this->install_or_update_notice = $this->get_install_or_update_notice();
506	}
507
508	/**
509	* Get the install or update notice instance
510	*
511	* @return WP_Optimize_Install_Or_Update_Notice
512	*/
513	private function get_install_or_update_notice() {
514	static $instance = null;
515	if (is_a($instance, 'WP_Optimize_Install_Or_Update_Notice')) return $instance;
516	include_once WPO_PLUGIN_MAIN_PATH . 'includes/class-wp-optimize-install-or-update-notice.php';
517	$instance = new WP_Optimize_Install_Or_Update_Notice();
518	return $instance;
519	}
520
521	public function show_admin_notice_upgradead() {
522	$this->include_template('notices/thanks-for-using-main-dash.php');
523	}
524
525	public function capability_required() {
526	return apply_filters('wp_optimize_capability_required', 'manage_options');
527	}
528
529	public function wp_optimize_ajax_handler() {
530	$nonce = empty($_POST['nonce']) ? '' : $_POST['nonce'];
531
532	if (!wp_verify_nonce($nonce, 'wp-optimize-ajax-nonce') \|\| empty($_POST['subaction'])) {
533	wp_send_json(array(
534	'result' => false,
535	'error_code' => 'security_check',
536	'error_message' => __('The security check failed; try refreshing the page.', 'wp-optimize')
537	));
538	}
539
540	$subaction = $_POST['subaction'];
541	$data = isset($_POST['data']) ? $_POST['data'] : null;
542
543	if (!current_user_can($this->capability_required())) {
544	wp_send_json(array(
545	'result' => false,
546	'error_code' => 'security_check',
547	'error_message' => __('You are not allowed to run this command.', 'wp-optimize')
548	));
549	}
550
551
552	// Currently the settings are only available to network admins.
553	if (is_multisite() && !current_user_can('manage_network_options')) {
554	/**
555	* Filters the commands allowed to the subsite admins. Other commands are only available to network admin. Only used in a multisite context.
556	*/
557	$allowed_commands = apply_filters('wpo_multisite_allowed_commands', array('check_server_status', 'compress_single_image', 'restore_single_image'));
558	if (!in_array($subaction, $allowed_commands)) wp_send_json(array(
559	'result' => false,
560	'error_code' => 'update_failed',
561	'error_message' => __('Options can only be saved by network admin', 'wp-optimize')
562	));
563	}
564
565	$wp_optimize = $this;
566	$optimizer = $this->get_optimizer();
567	$options = $this->get_options();
568
569	$results = array();
570
571	// Some commands that are available via AJAX only.
572	if (in_array($subaction, array('dismiss_dash_notice_until', 'dismiss_season'))) {
573	$options->update_option($subaction, (time() + 366 * 86400));
574	} elseif (in_array($subaction, array('dismiss_page_notice_until', 'dismiss_notice'))) {
575	$options->update_option($subaction, (time() + 84 * 86400));
576	} else {
577	// Other commands, available for any remote method.
578	if (!class_exists('WP_Optimize_Commands')) include_once(WPO_PLUGIN_MAIN_PATH . 'includes/class-commands.php');
579	if (!class_exists('WP_Optimize_Cache_Commands')) include_once(WPO_PLUGIN_MAIN_PATH . 'cache/class-cache-commands.php');
580	if (!class_exists('WP_Optimize_Minify_Commands')) include_once(WPO_PLUGIN_MAIN_PATH . 'minify/class-wp-optimize-minify-commands.php');
581
582	$commands = new WP_Optimize_Commands();
583	$cache_commands = new WP_Optimize_Cache_Commands();
584	$minify_commands = new WP_Optimize_Minify_Commands();
585
586
587	// check if called command not in main commands class and exist in cache commands class then change class.
588	if (!is_callable(array($commands, $subaction)) && is_callable(array($minify_commands, $subaction))) {
589	$commands = $minify_commands;
590	}
591
592	// check if called command not in main commands class and exist in cache commands class then change class.
593	if (!is_callable(array($commands, $subaction)) && is_callable(array($cache_commands, $subaction))) {
594	$commands = $cache_commands;
595	}
596
597	if (!is_callable(array($commands, $subaction))) {
598	error_log("WP-Optimize: ajax_handler: no such command (".$subaction.")");
599	$results = array(
600	'result' => false,
601	'error_code' => 'command_not_found',
602	'error_message' => sprintf(__('The command "%s" was not found', 'wp-optimize'), $subaction)
603	);
604	} else {
605	$results = call_user_func(array($commands, $subaction), $data);
606
607	// clean status box content, it broke json sometimes.
608	if (isset($results['status_box_contents'])) {
609	$results['status_box_contents'] = str_replace(array("\n", "\t"), '', $results['status_box_contents']);
610	}
611
612	if (is_wp_error($results)) {
613	$results = array(
614	'result' => false,
615	'error_code' => $results->get_error_code(),
616	'error_message' => $results->get_error_message(),
617	'error_data' => $results->get_error_data(),
618	);
619	}
620
621	// if nothing was returned for some reason, set as result null.
622	if (empty($results)) {
623	$results = array(
624	'result' => null
625	);
626	}
627	}
628	}
629
630	$result = json_encode($results);
631
632	// Requires PHP 5.3+
633	$json_last_error = function_exists('json_last_error') ? json_last_error() : false;
634
635	// if json_encode returned error then return error.
636	if ($json_last_error) {
637	$result = array(
638	'result' => false,
639	'error_code' => $json_last_error,
640	'error_message' => 'json_encode error : '.$json_last_error,
641	'error_data' => '',
642	);
643
644	$result = json_encode($result);
645	}
646
647	echo $result;
648
649	die;
650	}
651
652	/**
653	* Builds the Tabs that should be displayed
654	*
655	* @return array Returns all tabs specified
656	*/
657	public function get_tabs($page) {
658	// define tabs for pages.
659	$pages_tabs = array(
660	'WP-Optimize' => array(
661	'optimize' => __('Optimizations', 'wp-optimize'),
662	'tables' => __('Tables', 'wp-optimize'),
663	'settings' => __('Settings', 'wp-optimize'),
664	),
665	'wpo_images' => array(
666	'smush' => __('Compress images', 'wp-optimize'),
667	'unused' => __('Unused images and sizes', 'wp-optimize').'<span class="premium-only">Premium</span>',
668	'lazyload' => __('Lazy-load', 'wp-optimize').'<span class="premium-only">Premium</span>',
669	),
670	'wpo_cache' => array(
671	'cache' => __('Page cache', 'wp-optimize'),
672	'preload' => __('Preload', 'wp-optimize'),
673	'advanced' => __('Advanced settings', 'wp-optimize'),
674	'gzip' => __('Gzip compression', 'wp-optimize'),
675	'settings' => __('Static file headers', 'wp-optimize') // Adds a settings tab
676	),
677	'wpo_settings' => array(
678	'settings' => array(
679	'title' => __('Settings', 'wp-optimize'),
680	),
681	),
682	'wpo_support' => array('support' => __('Support / FAQs', 'wp-optimize')),
683	'wpo_mayalso' => array('may_also' => __('Premium / Plugin family', 'wp-optimize')),
684	);
685
686	$tabs = (array_key_exists($page, $pages_tabs)) ? $pages_tabs[$page] : array();
687
688	return apply_filters('wp_optimize_admin_page_'.$page.'_tabs', $tabs);
689	}
690
691	/**
692	* Main page structure.
693	*/
694	public function display_admin() {
695	$capability_required = $this->capability_required();
696
697	if (!current_user_can($capability_required) \|\| (!$this->can_run_optimizations() && !$this->can_manage_options())) {
698	echo "Permission denied.";
699	return;
700	}
701
702	$this->register_admin_content();
703
704	echo '<div id="wp-optimize-wrap">';
705
706	$this->include_template('admin-page-header.php', false, array('show_notices' => !($this->get_install_or_update_notice()->show_current_notice())));
707
708	do_action('wpo_admin_after_header');
709
710	echo '<div id="actions-results-area"></div>';
711
712	$pages = $this->get_submenu_items();
713
714	foreach ($pages as $page) {
715	if (isset($page['menu_slug'])) {
716	$this->display_admin_page($page['menu_slug']);
717	}
718	}
719
720	// closes main plugin wrapper div. #wp-optimize-wrap
721	echo '</div><!-- END #wp-optimize-wrap -->';
722
723	}
724
725	/**
726	* Prepare and display admin page with $page id.
727	*
728	* @param string $page wp-optimize page id i.e. dashboard, database, images, cache, ...
729	*/
730	public function display_admin_page($page) {
731
732	$active_page = !empty($_REQUEST['page']) ? $_REQUEST['page'] : '';
733
734	echo '<div class="wpo-page' . ($active_page == $page ? ' active' : '') . '" data-whichpage="'.$page.'">';
735
736	echo '<div class="wpo-main">';
737
738	// get defined tabs for $page.
739	$tabs = $this->get_tabs($page);
740
741	// if no tabs defined for $page then use $page as $active_tab for load template, doing related actions e t.c.
742	if (empty($tabs)) {
743	$active_tab = $page;
744	} else {
745	$tab_keys = array_keys($tabs);
746	$default_tab = apply_filters('wp_optimize_admin_'.$page.'_default_tab', $tab_keys[0]);
747	$active_tab = isset($_GET['tab']) ? substr($_GET['tab'], 12) : $default_tab;
748	if (!in_array($active_tab, array_keys($tabs))) $active_tab = $default_tab;
749	}
750
751	do_action('wp_optimize_admin_page_'.$page, $active_tab);
752
753	// if tabs defined then display
754	if (!empty($tabs)) {
755	$this->include_template('admin-page-header-tabs.php', false, array('page' => $page, 'active_tab' => $active_tab, 'tabs' => $tabs, 'wpo_is_premium' => self::is_premium()));
756	}
757
758	foreach ($tabs as $tab_id => $tab_description) {
759	// output wrap div for tab with id #wp-optimize-nav-tab-contents-'.$page.'-'.$tab_id
760	echo '<div class="wp-optimize-nav-tab-contents" id="wp-optimize-nav-tab-'.$page.'-'.$tab_id.'-contents" '.(($tab_id == $active_tab) ? '' : 'style="display:none;"').'>';
761
762	echo '<div class="postbox wpo-tab-postbox">';
763	// call action for generate tab content.
764
765	do_action('wp_optimize_admin_page_'.$page.'_'.$tab_id);
766
767	// closes postbox.
768	echo '</div><!-- END .postbox -->';
769	// closes tab wrapper.
770	echo '</div><!-- END .wp-optimize-nav-tab-contents -->';
771	}
772
773	echo '</div><!-- END .wpo-main -->';
774
775	do_action('wp_optimize_admin_after_page_'.$page, $active_tab);
776
777	echo '</div><!-- END .wpo-page -->';
778
779	}
780
781	/**
782	* Define required actions for admin pages.
783	*/
784	public function register_admin_content() {
785
786	do_action('wp_optimize_register_admin_content');
787
788	/**
789	* SETTINGS
790	*/
791	add_action('wp_optimize_admin_page_wpo_settings_settings', array($this, 'output_dashboard_settings_tab'), 20);
792
793	/**
794	* Premium / other plugins
795	*/
796	add_action('wp_optimize_admin_page_wpo_mayalso_may_also', array($this, 'output_dashboard_other_plugins_tab'), 20);
797
798	/**
799	* DATABASE
800	*/
801	add_action('wp_optimize_admin_page_WP-Optimize_optimize', array($this, 'output_database_optimize_tab'), 20);
802	add_action('wp_optimize_admin_page_WP-Optimize_tables', array($this, 'output_database_tables_tab'), 20);
803	add_action('wp_optimize_admin_page_WP-Optimize_settings', array($this, 'output_database_settings_tab'), 20);
804
805	/**
806	* CACHE
807	*/
808
809	add_action('wp_optimize_admin_page_wpo_cache_cache', array($this, 'output_page_cache_tab'), 20);
810	add_action('wp_optimize_admin_page_wpo_cache_preload', array($this, 'output_page_cache_preload_tab'), 20);
811	add_action('wp_optimize_admin_page_wpo_cache_advanced', array($this, 'output_page_cache_advanced_tab'), 20);
812	add_action('wp_optimize_admin_page_wpo_cache_gzip', array($this, 'output_cache_gzip_tab'), 20);
813	add_action('wp_optimize_admin_page_wpo_cache_settings', array($this, 'output_cache_settings_tab'), 20);
814
815	/**
816	* SUPPORT
817	*/
818	add_action('wp_optimize_admin_page_wpo_support_support', array($this, 'output_dashboard_support_tab'), 20);
819	// Display Support page.
820
821	if (!self::is_premium()) {
822	/**
823	* Add action for display Images > Unused images and sizes tab.
824	*/
825	add_action('wp_optimize_admin_page_wpo_images_unused', array($this, 'admin_page_wpo_images_unused'));
826
827	/**
828	* Add action for display Dashboard > Lazyload tab.
829	*/
830	add_action('wp_optimize_admin_page_wpo_images_lazyload', array($this, 'admin_page_wpo_images_lazyload'));
831	}
832	}
833
834	/**
835	* Database settings
836	*/
837	public function output_database_settings_tab() {
838
839	if ($this->can_manage_options()) {
840	$this->include_template('database/settings.php');
841	} else {
842	$this->prevent_manage_options_info();
843	}
844	}
845
846	/**
847	* Dashboard settings
848	*/
849	public function output_dashboard_settings_tab() {
850	$options = $this->get_options();
851
852	if ('POST' == $_SERVER['REQUEST_METHOD']) {
853	// Nonce check.
854	check_admin_referer('wpo_settings');
855
856	$output = $options->save_settings($_POST);
857
858	if (isset($_POST['wp-optimize-settings'])) {
859	// save settings request sent.
860	$output = $options->save_settings($_POST);
861	}
862
863	$this->wpo_render_output_messages($output);
864	}
865
866	if ($this->can_manage_options()) {
867	$this->include_template('settings/settings.php');
868	} else {
869	$this->prevent_manage_options_info();
870	}
871	}
872
873	/**
874	* Dashboard support tab
875	*/
876	public function output_dashboard_support_tab() {
877	WP_Optimize()->include_template('settings/support-and-faqs.php');
878	}
879
880	/**
881	* Dashboard Other plugins / premium tab
882	*/
883	public function output_dashboard_other_plugins_tab() {
884	$this->include_template('settings/may-also-like.php');
885	}
886
887	/**
888	* Gzip tab
889	*/
890	public function output_page_cache_tab() {
891	$wpo_cache = $this->get_page_cache();
892	$wpo_cache_options = $wpo_cache->config->get();
893	$display = $wpo_cache_options['enable_page_caching'] ? "style='display:block'" : "style='display:none'";
894
895	WP_Optimize()->include_template('cache/page-cache.php', false, array(
896	'wpo_cache' => $wpo_cache,
897	'active_cache_plugins' => WP_Optimize_Detect_Cache_Plugins::instance()->get_active_cache_plugins(),
898	'wpo_cache_options' => $wpo_cache_options,
899	'cache_size' => $this->get_page_cache()->get_cache_size(),
900	'display' => $display
901	));
902	}
903
904	/**
905	* Preload tab
906	*/
907	public function output_page_cache_preload_tab() {
908	$wpo_cache = $this->get_page_cache();
909	$wpo_cache_options = $wpo_cache->config->get();
910	$wpo_cache_preloader = WP_Optimize_Page_Cache_Preloader::instance();
911	$is_running = $wpo_cache_preloader->is_running();
912	$status = $wpo_cache_preloader->get_status_info();
913
914	WP_Optimize()->include_template('cache/page-cache-preload.php', false, array(
915	'wpo_cache_options' => $wpo_cache_options,
916	'is_running' => $is_running,
917	'status_message' => isset($status['message']) ? $status['message'] : '',
918	'schedule_options' => array(
919	'wpo_use_cache_lifespan' => __('Same as cache lifespan', 'wp-optimize'),
920	'wpo_daily' => __('Daily', 'wp-optimize'),
921	'wpo_weekly' => __('Weekly', 'wp-optimize'),
922	'wpo_fortnightly' => __('Fortnightly', 'wp-optimize'),
923	'wpo_monthly' => __('Monthly (approx. - every 30 days)', 'wp-optimize')
924	)
925	));
926	}
927
928	/**
929	* Advanced tab
930	*/
931	public function output_page_cache_advanced_tab() {
932	$wpo_cache = $this->get_page_cache();
933	$wpo_cache_options = $wpo_cache->config->get();
934
935	$cache_exception_urls = is_array($wpo_cache_options['cache_exception_urls']) ? join("\n", $wpo_cache_options['cache_exception_urls']) : '';
936	$cache_exception_cookies = is_array($wpo_cache_options['cache_exception_cookies']) ? join("\n", $wpo_cache_options['cache_exception_cookies']) : '';
937	$cache_exception_browser_agents = is_array($wpo_cache_options['cache_exception_browser_agents']) ? join("\n", $wpo_cache_options['cache_exception_browser_agents']) : '';
938
939	WP_Optimize()->include_template('cache/page-cache-advanced.php', false, array(
940	'wpo_cache' => $this->get_page_cache(),
941	'wpo_cache_options' => $wpo_cache_options,
942	'cache_exception_urls' => $cache_exception_urls,
943	'cache_exception_cookies' => $cache_exception_cookies,
944	'cache_exception_browser_agents' => $cache_exception_browser_agents,
945	));
946	}
947
948	/**
949	* Gzip tab
950	*/
951	public function output_cache_gzip_tab() {
952	$wpo_gzip_compression = $this->get_gzip_compression();
953	$wpo_gzip_compression_enabled = $wpo_gzip_compression->is_gzip_compression_enabled(true);
954	$wpo_gzip_headers_information = $wpo_gzip_compression->get_headers_information();
955
956	WP_Optimize()->include_template('cache/gzip-compression.php', false, array(
957	'wpo_gzip_headers_information' => $wpo_gzip_headers_information,
958	'wpo_gzip_compression_enabled' => $wpo_gzip_compression_enabled,
959	'wpo_gzip_compression_settings_added' => $wpo_gzip_compression->is_gzip_compression_section_exists(),
960	'info_link' => 'https://getwpo.com/gzip-compression-explained/',
961	'faq_link' => 'https://getwpo.com/gzip-faq-link/',
962	'class_name' => (!is_wp_error($wpo_gzip_compression_enabled) && $wpo_gzip_compression_enabled ? 'wpo-enabled' : 'wpo-disabled')
963	));
964	}
965
966	/**
967	* Cache tab
968	*/
969	public function output_cache_settings_tab() {
970
971	$wpo_browser_cache = $this->get_browser_cache();
972	$wpo_browser_cache_enabled = $wpo_browser_cache->is_enabled();
973
974	WP_Optimize()->include_template('cache/browser-cache.php', false, array(
975	'wpo_browser_cache_enabled' => $wpo_browser_cache_enabled,
976	'wpo_browser_cache_settings_added' => $wpo_browser_cache->is_browser_cache_section_exists(),
977	'class_name' => (true === $wpo_browser_cache_enabled ? 'wpo-enabled' : 'wpo-disabled'),
978	'wpo_browser_cache_expire_days' => $this->get_options()->get_option('browser_cache_expire_days', '28'),
979	'wpo_browser_cache_expire_hours' => $this->get_options()->get_option('browser_cache_expire_hours', '0'),
980	'info_link' => 'https://developer.mozilla.org/en-US/docs/Web/HTTP/Caching',
981	'faq_link' => 'https://www.digitalocean.com/community/tutorials/how-to-implement-browser-caching-with-nginx-s-header-module-on-ubuntu-16-04',
982	));
983	}
984
985	/**
986	* Outputs the DB optimize Tab
987	*/
988	public function output_database_optimize_tab() {
989	$optimizer = $this->get_optimizer();
990	$options = $this->get_options();
991
992	// check if nonce passed.
993	$nonce_passed = (!empty($_REQUEST['_wpnonce']) && wp_verify_nonce($_REQUEST['_wpnonce'], 'wpo_optimization')) ? true : false;
994
995	// save options.
996	if ($nonce_passed && isset($_POST['wp-optimize'])) $options->save_sent_manual_run_optimization_options($_POST, true);
997
998	$optimize_db = ($nonce_passed && isset($_POST["optimize-db"])) ? true : false;
999
1000	$optimization_results = (($nonce_passed) ? $optimizer->do_optimizations($_POST) : false);
1001
1002	// display optimizations table or restricted access message.
1003	if ($this->can_run_optimizations()) {
1004	$this->include_template('database/optimize-table.php', false, array('optimize_db' => $optimize_db, 'optimization_results' => $optimization_results, 'load_data' => false));
1005	} else {
1006	$this->prevent_run_optimizations_message();
1007	}
1008	}
1009
1010	/**
1011	* Outputs the DB Tables Tab
1012	*/
1013	public function output_database_tables_tab() {
1014	// check if nonce passed.
1015	$nonce_passed = (!empty($_REQUEST['_wpnonce']) && wp_verify_nonce($_REQUEST['_wpnonce'], 'wpo_optimization')) ? true : false;
1016
1017	$optimize_db = ($nonce_passed && isset($_POST["optimize-db"])) ? true : false;
1018
1019	if ($this->can_run_optimizations()) {
1020	$this->include_template('database/tables.php', false, array('optimize_db' => $optimize_db, 'load_data' => WP_Optimize()->template_should_include_data()));
1021	} else {
1022	$this->prevent_run_optimizations_message();
1023	}
1024	}
1025
1026	/**
1027	* Runs upon the WP action admin_page_wpo_images_unused
1028	*/
1029	public function admin_page_wpo_images_unused() {
1030	WP_Optimize()->include_template('images/unused.php');
1031	}
1032
1033	/**
1034	* Runs upon the WP action wp_optimize_admin_page_wpo_images_lazyload
1035	*/
1036	public function admin_page_wpo_images_lazyload() {
1037	WP_Optimize()->include_template('images/lazyload.php');
1038	}
1039
1040	/**
1041	* Returns array of translations used in javascript code.
1042	*
1043	* @return array
1044	*/
1045	public function wpo_js_translations() {
1046	return apply_filters('wpo_js_translations', array(
1047	'automatic_backup_before_optimizations' => __('Automatic backup before optimizations', 'wp-optimize'),
1048	'error_unexpected_response' => __('An unexpected response was received.', 'wp-optimize'),
1049	'optimization_complete' => __('Optimization complete', 'wp-optimize'),
1050	'run_optimizations' => __('Run optimizations', 'wp-optimize'),
1051	'cancel' => __('Cancel', 'wp-optimize'),
1052	'enable' => __('Enable', 'wp-optimize'),
1053	'disable' => __('Disable', 'wp-optimize'),
1054	'please_select_settings_file' => __('Please, select settings file.', 'wp-optimize'),
1055	'are_you_sure_you_want_to_remove_logging_destination' => __('Are you sure you want to remove this logging destination?', 'wp-optimize'),
1056	'fill_all_settings_fields' => __('Before saving, you need to complete the currently incomplete settings (or remove them).', 'wp-optimize'),
1057	'table_was_not_repaired' => __('%s was not repaired. For more details, please check the logs (configured in your logging destinations settings).', 'wp-optimize'),
1058	'are_you_sure_you_want_to_remove_this_table' => __('WARNING - some plugins might not be detected as installed or activated if they are in unknown folders (for example premium plugins).', 'wp-optimize').' '.__('Only delete a table if you are sure of what you are doing, and after taking a backup.', 'wp-optimize')." \r".__('Are you sure you want to remove this table?', 'wp-optimize'),
1059	'table_was_not_deleted' => __('%s was not deleted. For more details, please check your logs configured in logging destinations settings.', 'wp-optimize'),
1060	'please_use_positive_integers' => __('Please use positive integers.', 'wp-optimize'),
1061	'please_use_valid_values' => __('Please use valid values.', 'wp-optimize'),
1062	'update' => __('Update', 'wp-optimize'),
1063	'run_now' => __('Run now', 'wp-optimize'),
1064	'starting_preload' => __('Started preload...', 'wp-optimize'),
1065	'loading_urls' => __('Loading URLs...', 'wp-optimize'),
1066	'current_cache_size' => __('Current cache size:', 'wp-optimize'),
1067	'number_of_files' => __('Number of files:', 'wp-optimize'),
1068	'toggle_info' => __('Show information', 'wp-optimize'),
1069	'page_refresh' => __('Refreshing the page to reflect changes...', 'wp-optimize'),
1070	'spinner_src' => esc_attr(admin_url('images/spinner-2x.gif')),
1071	'sites' => $this->get_sites(),
1072	));
1073	}
1074
1075	public function wpo_admin_bar() {
1076	$wp_admin_bar = $GLOBALS['wp_admin_bar'];
1077
1078	if (defined('WPOPTIMIZE_ADMINBAR_DISABLE') && WPOPTIMIZE_ADMINBAR_DISABLE) return;
1079
1080	// Show menu item in top bar only for super admins.
1081	if (is_multisite() & !is_super_admin(get_current_user_id())) return;
1082
1083	// Add a link called at the top admin bar.
1084	$args = array(
1085	'id' => 'wp-optimize-node',
1086	'title' => apply_filters('wpoptimize_admin_node_title', 'WP-Optimize')
1087	);
1088	$wp_admin_bar->add_node($args);
1089
1090	$pages = $this->get_submenu_items();
1091
1092	foreach ($pages as $page_id => $page) {
1093
1094	if (!isset($page['create_submenu']) \|\| !$page['create_submenu']) {
1095	if (isset($page['icon']) && 'separator' == $page['icon']) {
1096	$args = array(
1097	'id' => 'wpo-separator-'.$page_id,
1098	'parent' => 'wp-optimize-node',
1099	'meta' => array(
1100	'class' => 'separator',
1101	),
1102	);
1103	$wp_admin_bar->add_node($args);
1104	}
1105	continue;
1106	}
1107
1108	// 'menu_slug' => 'WP-Optimize',
1109
1110	$menu_page_url = menu_page_url($page['menu_slug'], false);
1111
1112	if (is_multisite()) {
1113	$menu_page_url = network_admin_url('admin.php?page='.$page['menu_slug']);
1114	}
1115
1116	$args = array(
1117	'id' => 'wpoptimize_admin_node_'.$page_id,
1118	'title' => $page['menu_title'],
1119	'parent' => 'wp-optimize-node',
1120	'href' => $menu_page_url,
1121	);
1122	$wp_admin_bar->add_node($args);
1123	}
1124
1125	}
1126
1127	/**
1128	* Add settings link on plugin page
1129	*
1130	* @param string $links Passing through the URL to be used within the HREF.
1131	* @return string Returns the Links.
1132	*/
1133	public function plugin_settings_link($links) {
1134
1135	$admin_page_url = $this->get_options()->admin_page_url();
1136	$settings_page_url = $this->get_options()->admin_page_url('wpo_settings');
1137
1138	if (false == self::is_premium()) {
1139	$premium_link = '<a href="' . esc_url($this->premium_version_link) . '" target="_blank">' . __('Premium', 'wp-optimize') . '</a>';
1140	array_unshift($links, $premium_link);
1141	}
1142
1143	$settings_link = '<a href="' . esc_url($settings_page_url) . '">' . __('Settings', 'wp-optimize') . '</a>';
1144	array_unshift($links, $settings_link);
1145
1146	$optimize_link = '<a href="' . esc_url($admin_page_url) . '">' . __('Optimize', 'wp-optimize') . '</a>';
1147	array_unshift($links, $optimize_link);
1148	return $links;
1149	}
1150
1151	/**
1152	* Action wpo_tables_list_additional_column_data. Output button Optimize in the action column.
1153	*
1154	* @param string $content String for output to column
1155	* @param object $table_info Object with table info.
1156	*
1157	* @return string
1158	*/
1159	public function tables_list_additional_column_data($content, $table_info) {
1160	if ($table_info->is_needing_repair) {
1161	$content .= '<div class="wpo_button_wrap">'
1162	. '<button class="button button-secondary run-single-table-repair" data-table="' . esc_attr($table_info->Name) . '">' . __('Repair', 'wp-optimize') . '</button>'
1163	. '<img class="optimization_spinner visibility-hidden" src="' . esc_attr(admin_url('images/spinner-2x.gif')) . '" width="20" height="20" alt="...">'
1164	. '<span class="optimization_done_icon dashicons dashicons-yes visibility-hidden"></span>'
1165	. '</div>';
1166	}
1167
1168	// table belongs to plugin.
1169	if ($table_info->can_be_removed) {
1170	$content .= '<div>'
1171	. '<button class="button button-secondary run-single-table-delete" data-table="' . esc_attr($table_info->Name) . '">' . __('Remove', 'wp-optimize') . '</button>'
1172	. '<img class="optimization_spinner visibility-hidden" src="' . esc_attr(admin_url('images/spinner-2x.gif')) . '" width="20" height="20" alt="...">'
1173	. '<span class="optimization_done_icon dashicons dashicons-yes visibility-hidden"></span>'
1174	. '</div>';
1175	}
1176
1177	return $content;
1178	}
1179
1180	/**
1181	* Initialize WP-Optimize page cache.
1182	*/
1183	public function init_page_cache() {
1184	if ($this->get_page_cache()->config->get_option('enable_page_caching', false)) {
1185	$this->get_page_cache()->enable();
1186	}
1187	}
1188
1189	/**
1190	* Schedules cron event based on selected schedule type
1191	*
1192	* @return void
1193	*/
1194	public function cron_activate() {
1195	$gmt_offset = (int) (3600 * get_option('gmt_offset'));
1196
1197	$options = $this->get_options();
1198
1199	if ($options->get_option('schedule') === false) {
1200	$options->set_default_options();
1201	} else {
1202	if ('true' == $options->get_option('schedule')) {
1203	if (!wp_next_scheduled('wpo_cron_event2')) {
1204	$schedule_type = $options->get_option('schedule-type', 'wpo_weekly');
1205
1206	// Backward compatibility
1207	if ('wpo_otherweekly' == $schedule_type) $schedule_type = 'wpo_fortnightly';
1208
1209	$this_time = (86400 * 7);
1210
1211	switch ($schedule_type) {
1212	case "wpo_daily":
1213	$this_time = 86400;
1214	break;
1215
1216	case "wpo_weekly":
1217	$this_time = (86400 * 7);
1218	break;
1219
1220	case "wpo_fortnightly":
1221	$this_time = (86400 * 14);
1222	break;
1223
1224	case "wpo_monthly":
1225	$this_time = (86400 * 30);
1226	break;
1227	}
1228
1229	add_action('wpo_cron_event2', array($this, 'cron_action'));
1230	wp_schedule_event((current_time("timestamp", 0) + $this_time - $gmt_offset), $schedule_type, 'wpo_cron_event2');
1231	WP_Optimize()->log('running wp_schedule_event()');
1232	}
1233	}
1234	}
1235	}
1236
1237	/**
1238	* Clears all cron events
1239	*
1240	* @return void
1241	*/
1242	public function wpo_cron_deactivate() {
1243	wp_clear_scheduled_hook('wpo_cron_event2');
1244	}
1245
1246	/**
1247	* Scheduler public functions to update schedulers
1248	*
1249	* @param array $schedules An array of schedules being passed.
1250	* @return array An array of schedules being returned.
1251	*/
1252	public function cron_schedules($schedules) {
1253	$schedules['wpo_daily'] = array('interval' => 86400, 'display' => 'Once Daily');
1254	$schedules['wpo_weekly'] = array('interval' => 86400 * 7, 'display' => 'Once Weekly');
1255	$schedules['wpo_fortnightly'] = array('interval' => 86400 * 14, 'display' => 'Once Every Fortnight');
1256	$schedules['wpo_monthly'] = array('interval' => 86400 * 30, 'display' => 'Once Every Month');
1257	return $schedules;
1258	}
1259
1260	/**
1261	* Returns count of overdue cron jobs.
1262	*
1263	* @return integer
1264	*/
1265	public function howmany_overdue_crons() {
1266	$how_many_overdue = 0;
1267	if (function_exists('_get_cron_array') \|\| (is_file(ABSPATH.WPINC.'/cron.php') && include_once(ABSPATH.WPINC.'/cron.php') && function_exists('_get_cron_array'))) {
1268	$crons = _get_cron_array();
1269	if (is_array($crons)) {
1270	$timenow = time();
1271	foreach ($crons as $jt => $job) {
1272	if ($jt < $timenow) {
1273	$how_many_overdue++;
1274	}
1275	}
1276	}
1277	}
1278	return $how_many_overdue;
1279	}
1280
1281	/**
1282	* Run updates on plugin activation.
1283	*/
1284	public function run_updates() {
1285	include_once(WPO_PLUGIN_MAIN_PATH.'/includes/class-wp-optimize-updates.php');
1286	WP_Optimize_Updates::check_updates();
1287	}
1288
1289	/**
1290	* Returns warning about overdue crons.
1291	*
1292	* @param int $howmany count of overdue crons
1293	* @return string
1294	*/
1295	public function show_admin_warning_overdue_crons($howmany) {
1296	$ret = '<div class="updated below-h2"><p>';
1297	$ret .= '<strong>'.__('Warning', 'wp-optimize').':</strong> '.sprintf(__('WordPress has a number (%d) of scheduled tasks which are overdue. Unless this is a development site, this probably means that the scheduler in your WordPress install is not working.', 'wp-optimize'), $howmany).' <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>';
1298	$ret .= '</p></div>';
1299	return $ret;
1300	}
1301
1302	public function admin_menu() {
1303
1304	$capability_required = $this->capability_required();
1305
1306	if (!current_user_can($capability_required) \|\| (!$this->can_run_optimizations() && !$this->can_manage_options())) return;
1307
1308	$icon_svg = 'data:image/svg+xml;base64,PD94bWwgdmVyc2lvbj0iMS4wIiBlbmNvZGluZz0iVVRGLTgiIHN0YW5kYWxvbmU9Im5vIj8+CjxzdmcKICAgeG1sbnM6ZGM9Imh0dHA6Ly9wdXJsLm9yZy9kYy9lbGVtZW50cy8xLjEvIgogICB4bWxuczpjYz0iaHR0cDovL2NyZWF0aXZlY29tbW9ucy5vcmcvbnMjIgogICB4bWxuczpyZGY9Imh0dHA6Ly93d3cudzMub3JnLzE5OTkvMDIvMjItcmRmLXN5bnRheC1ucyMiCiAgIHhtbG5zOnN2Zz0iaHR0cDovL3d3dy53My5vcmcvMjAwMC9zdmciCiAgIHhtbG5zPSJodHRwOi8vd3d3LnczLm9yZy8yMDAwL3N2ZyIKICAgdmlld0JveD0iMCAwIDE2IDE2IgogICB2ZXJzaW9uPSIxLjEiCiAgIGlkPSJzdmc0MzE2IgogICBoZWlnaHQ9IjE2IgogICB3aWR0aD0iMTYiPgogIDxkZWZzCiAgICAgaWQ9ImRlZnM0MzE4IiAvPgogIDxtZXRhZGF0YQogICAgIGlkPSJtZXRhZGF0YTQzMjEiPgogICAgPHJkZjpSREY+CiAgICAgIDxjYzpXb3JrCiAgICAgICAgIHJkZjphYm91dD0iIj4KICAgICAgICA8ZGM6Zm9ybWF0PmltYWdlL3N2Zyt4bWw8L2RjOmZvcm1hdD4KICAgICAgICA8ZGM6dHlwZQogICAgICAgICAgIHJkZjpyZXNvdXJjZT0iaHR0cDovL3B1cmwub3JnL2RjL2RjbWl0eXBlL1N0aWxsSW1hZ2UiIC8+CiAgICAgICAgPGRjOnRpdGxlPjwvZGM6dGl0bGU+CiAgICAgIDwvY2M6V29yaz4KICAgIDwvcmRmOlJERj4KICA8L21ldGFkYXRhPgogIDxnCiAgICAgaWQ9ImxheWVyMSI+CiAgICA8cGF0aAogICAgICAgc3R5bGU9ImZpbGw6I2EwYTVhYTtmaWxsLW9wYWNpdHk6MSIKICAgICAgIGlkPSJwYXRoNTciCiAgICAgICBkPSJtIDEwLjc2ODgwOSw2Ljc2MTYwNTEgMCwwIGMgLTAuMDE2ODgsLTAuMDE2ODc4IC0wLjAyNTMxLC0wLjA0MjE4MSAtMC4wMzM3NCwtMC4wNjc0OTkgLTAuMDA4NCwtMC4wMDgzOSAtMC4wMDg0LC0wLjAxNjg3OCAtMC4wMTY4OCwtMC4wMzM3NDMgQyA5Ljk5MjYxMTIsNS4xOTIzMzY2IDguMjIwODU1Nyw0LjU4NDg3ODEgNi43NDQzOTEyLDUuMjkzNTc5NyA1LjY3MjkwMDUsNS44MDgyMzI4IDUuMDU3MDA0Myw2Ljg4ODE2MTMgNS4wNjU0NDIsOC4wMDE4MzY1IDQuNDU3OTgyMiw3LjMxMDAwNzYgMy42OTg2NTg0LDYuNzk1MzU0NSAyLjg1NDk2NDIsNi40OTE2MjUzIDMuMjY4Mzc0Myw1LjA2NTc4MzEgNC4yNTU0OTYsMy44MTcxMTY2IDUuNjg5Nzc0NiwzLjEyNTI4NzggOC4zNjQyODMyLDEuODM0NDM2OCAxMS41NzAzMTksMi45Mzk2NzQ0IDEyLjg4NjQ4MSw1LjU4ODg3MjYgMTMuNDUxNzU1LDYuNzI3ODU5NiAxNC42NDk4MDEsNy4zNTIxOTIxIDE1Ljg0Nzg0Niw3LjIzNDA3NSAxNS43NjM0ODIsNi4zMzk3NiAxNS41MTg4MDUsNS40MzcwMDg2IDE1LjEwNTM5Niw0LjU3NjQ0MDQgMTMuMjE1NTIxLDAuNjg3MDEzNCA4LjUzMzAyMjYsLTAuOTQxMzE2MjcgNC42NDM1OTQzLDAuOTQwMTIxNzkgMi4zMjM0MzcsMi4wNjIyMzM0IDAuODA0Nzg4MTQsNC4xNzk5MDQ0IDAuMzU3NjMxMzIsNi41MzM4MDk4IDIuNDE2MjQzOCw2LjQyNDEyOSA0LjQzMjY3MTcsNy41MDQwNTc0IDUuNDM2NjY2Miw5LjQzNjExNjcgbCAwLjAwODM5LDAgYyAwLjc1OTMxOTIsMS4zNzUyMjAzIDIuNDcyMDE3OCwxLjk0MDQ5NTMgMy45MDYyOTYsMS4yNDg2NjczIDEuMDQ2MTc5OCwtMC41MDYyMTggMS42NTM2NDA4LC0xLjUzNTUyMzggMS42Nzg5NTA4LC0yLjYxNTQ1MTIgMC41ODIxNDgsMC43MDg3MDE4IDEuMzMzMDM1LDEuMjQ4NjY2OCAyLjE1OTg1NiwxLjU3NzcwNjQgLTAuNDM4NzIxLDEuMzU4MzQ3OCAtMS40MDA1MzMsMi41NDc5NTQ4IC0yLjc5MjYyNywzLjIxNDQ3ODggLTIuNTkwMTM4NywxLjI0ODY1OCAtNS42NzgwNTc0LDAuMjUzMTA0IC03LjA2MTcxNTEsLTIuMjI3MzU3IGwgMCwwIEMgMi43NjIxMDQ4LDkuNDUyOTg5NCAxLjUxMzQzODMsOC44MjAyMTkxIDAuMjgxNjQ1OTIsOC45NzIwODQ0IDAuMzgyODg3NjUsOS43OTg5MDQ2IDAuNjE5MTIzMzEsMTAuNjE3Mjg3IDAuOTk4Nzg1MiwxMS40MDE5MjIgYyAxLjg4MTQzNjgsMy44OTc4NjQgNi41NjM5MzcsNS41MjYxOTggMTAuNDYxODAwOCwzLjY0NDc2IDIuMjQ0MjI2LC0xLjA4ODM2OSAzLjczNzU2MiwtMy4xMDQ3OTYgNC4yMzUzNDIsLTUuMzc0MzMyMyAtMS45OTk1NTQsMC4wNDIxODEgLTMuOTQ4NDg2LC0xLjAyOTMwNjMgLTQuOTI3MTcsLTIuOTEwNzQzMyB6IgogICAgICAgY2xhc3M9InN0MTciIC8+CiAgPC9nPgo8L3N2Zz4K';
1309
1310	// Removes the admin menu items on the left WP bar.
1311	if (!is_multisite() \|\| (is_multisite() && is_network_admin())) {
1312	add_menu_page("WP-Optimize", "WP-Optimize", $capability_required, "WP-Optimize", array($this, "display_admin"), $icon_svg);
1313
1314	$sub_menu_items = $this->get_submenu_items();
1315
1316	foreach ($sub_menu_items as $menu_item) {
1317	if ($menu_item['create_submenu']) add_submenu_page('WP-Optimize', $menu_item['page_title'], $menu_item['menu_title'], $capability_required, $menu_item['menu_slug'], $menu_item['function']);
1318	}
1319	}
1320
1321	$options = $this->get_options();
1322
1323	if ($options->get_option('enable-admin-menu', 'false') == 'true') {
1324	add_action('wp_before_admin_bar_render', array($this, 'wpo_admin_bar'));
1325	}
1326
1327	}
1328
1329	/**
1330	* Get the submenu items
1331	*
1332	* @return array
1333	*/
1334	public function get_submenu_items() {
1335	$sub_menu_items = array(
1336	array(
1337	'page_title' => __('Database', 'wp-optimize'),
1338	'menu_title' => __('Database', 'wp-optimize'),
1339	'menu_slug' => 'WP-Optimize',
1340	'function' => array($this, 'display_admin'),
1341	'icon' => 'cloud',
1342	'create_submenu' => true,
1343	'order' => 20,
1344	),
1345	array(
1346	'page_title' => __('Images', 'wp-optimize'),
1347	'menu_title' => __('Images', 'wp-optimize'),
1348	'menu_slug' => 'wpo_images',
1349	'function' => array($this, 'display_admin'),
1350	'icon' => 'images-alt2',
1351	'create_submenu' => true,
1352	'order' => 30,
1353	),
1354	array(
1355	'page_title' => __('Cache', 'wp-optimize'),
1356	'menu_title' => __('Cache', 'wp-optimize'),
1357	'menu_slug' => 'wpo_cache',
1358	'function' => array($this, 'display_admin'),
1359	'icon' => 'archive',
1360	'create_submenu' => true,
1361	'order' => 40,
1362	),
1363	array(
1364	'create_submenu' => false,
1365	'order' => 55,
1366	'icon' => 'separator',
1367	),
1368	array(
1369	'page_title' => __('Settings', 'wp-optimize'),
1370	'menu_title' => __('Settings', 'wp-optimize'),
1371	'menu_slug' => 'wpo_settings',
1372	'function' => array($this, 'display_admin'),
1373	'icon' => 'admin-settings',
1374	'create_submenu' => true,
1375	'order' => 60,
1376	),
1377	array(
1378	'page_title' => __('Support & FAQs', 'wp-optimize'),
1379	'menu_title' => __('Help', 'wp-optimize'),
1380	'menu_slug' => 'wpo_support',
1381	'function' => array($this, 'display_admin'),
1382	'icon' => 'sos',
1383	'create_submenu' => true,
1384	'order' => 60,
1385	),
1386	array(
1387	'page_title' => __('Premium Upgrade', 'wp-optimize'),
1388	'menu_title' => __('Premium Upgrade', 'wp-optimize'),
1389	'menu_slug' => 'wpo_mayalso',
1390	'function' => array($this, 'display_admin'),
1391	'icon' => 'admin-plugins',
1392	'create_submenu' => true,
1393	'order' => 70,
1394	),
1395	);
1396
1397	$sub_menu_items = apply_filters('wp_optimize_sub_menu_items', $sub_menu_items);
1398
1399	usort($sub_menu_items, array($this, 'order_sort'));
1400
1401	return $sub_menu_items;
1402	}
1403
1404	public function order_sort($a, $b) {
1405	if ($a['order'] == $b['order']) return 0;
1406	return ($a['order'] > $b['order']) ? 1 : -1;
1407	}
1408
1409	private function wp_normalize_path($path) {
1410	// Wp_normalize_path is not present before WP 3.9.
1411	if (function_exists('wp_normalize_path')) return wp_normalize_path($path);
1412	// Taken from WP 4.6.
1413	$path = str_replace('\\', '/', $path);
1414	$path = preg_replace('\|(?<=.)/+\|', '/', $path);
1415	if (':' === substr($path, 1, 1)) {
1416	$path = ucfirst($path);
1417	}
1418	return $path;
1419	}
1420
1421	public function get_templates_dir() {
1422	return apply_filters('wp_optimize_templates_dir', $this->wp_normalize_path(WPO_PLUGIN_MAIN_PATH.'/templates'));
1423	}
1424
1425	public function get_templates_url() {
1426	return apply_filters('wp_optimize_templates_url', WPO_PLUGIN_URL.'/templates');
1427	}
1428
1429	/**
1430	* Return or output view content
1431	*
1432	* @param String $path - path to template, usually relative to templates/ within the WP-O directory
1433	* @param Boolean $return_instead_of_echo - what to do with the results
1434	* @param Array $extract_these - key/value pairs for substitution into the scope of the template
1435	*
1436	* @return String\|Void
1437	*/
1438	public function include_template($path, $return_instead_of_echo = false, $extract_these = array()) {
1439	if ($return_instead_of_echo) ob_start();
1440
1441	if (preg_match('#^([^/]+)/(.*)$#', $path, $matches)) {
1442	$prefix = $matches[1];
1443	$suffix = $matches[2];
1444	if (isset($this->template_directories[$prefix])) {
1445	$template_file = $this->template_directories[$prefix].'/'.$suffix;
1446	}
1447	}
1448
1449	if (!isset($template_file)) {
1450	$template_file = WPO_PLUGIN_MAIN_PATH.'/templates/'.$path;
1451	}
1452
1453	$template_file = apply_filters('wp_optimize_template', $template_file, $path);
1454
1455	do_action('wp_optimize_before_template', $path, $template_file, $return_instead_of_echo, $extract_these);
1456
1457	if (!file_exists($template_file)) {
1458	error_log("WP Optimize: template not found: ".$template_file);
1459	echo __('Error:', 'wp-optimize').' '.__('template not found', 'wp-optimize')." (".$path.")";
1460	} else {
1461	extract($extract_these);
1462	$wpdb = $GLOBALS['wpdb'];
1463	$wp_optimize = $this;
1464	$optimizer = $this->get_optimizer();
1465	$options = $this->get_options();
1466	$wp_optimize_notices = $this->get_notices();
1467	include $template_file;
1468	}
1469
1470	do_action('wp_optimize_after_template', $path, $template_file, $return_instead_of_echo, $extract_these);
1471
1472	if ($return_instead_of_echo) return ob_get_clean();
1473	}
1474
1475	/**
1476	* Build a list of template directories (stored in self::$template_directories)
1477	*/
1478	private function register_template_directories() {
1479
1480	$template_directories = array();
1481
1482	$templates_dir = $this->get_templates_dir();
1483
1484	if ($dh = opendir($templates_dir)) {
1485	while (($file = readdir($dh)) !== false) {
1486	if ('.' == $file \|\| '..' == $file) continue;
1487	if (is_dir($templates_dir.'/'.$file)) {
1488	$template_directories[$file] = $templates_dir.'/'.$file;
1489	}
1490	}
1491	closedir($dh);
1492	}
1493
1494	// Optimal hook for most extensions to hook into.
1495	$this->template_directories = apply_filters('wp_optimize_template_directories', $template_directories);
1496
1497	}
1498
1499	/**
1500	* Not currently used; needs looking at.
1501	* N.B. The description does not match the actual function
1502	*
1503	* @param integer $date Date of when the optimization was executed.
1504	*/
1505	public function send_email($date) {
1506	ob_start();
1507	// This need to work on - currently not using the parameter values.
1508	$my_time = current_time("timestamp", 0);
1509	$my_date = gmdate(get_option('date_format') . ' ' . get_option('time_format'), $my_time);
1510	$sendto = (!$options->get_option('email-address') ? get_bloginfo('admin_email') : $options->get_option('email-address'));
1511	$subject = get_bloginfo('name').": ".__("Automatic Operation Completed", "wp-optimize")." ".$my_date;
1512
1513	$msg = __("Scheduled optimization was executed at", "wp-optimize")." ".$my_date."\r\n"."\r\n";
1514	$msg .= __("You can safely delete this email.", "wp-optimize")."\r\n";
1515	$msg .= "\r\n";
1516	$msg .= __("Regards,", "wp-optimize")."\r\n";
1517	$msg .= __("WP-Optimize Plugin", "wp-optimize");
1518	ob_end_clean();
1519	}
1520
1521	/**
1522	* Message to debug
1523	*
1524	* @param string $message Message to insert into the log.
1525	* @param array $context array with variables used in $message like in template,
1526	* for ex.
1527	* $message = 'Hello {message}';
1528	* $context = ['message' => 'world']
1529	* 'Hello world' string will be saved in log.
1530	*/
1531	public function log($message, $context = array()) {
1532	$this->get_logger()->debug($message, $context);
1533	}
1534
1535	/**
1536	* Format Bytes Into KB/MB
1537	*
1538	* @param mixed $bytes Number of bytes to be converted.
1539	* @return integer return the correct format size.
1540	*/
1541	public function format_size($bytes) {
1542	if ($bytes > 1073741824) {
1543	return number_format_i18n(($bytes / 1073741824), 2) . ' '.__('GB', 'wp-optimize');
1544	} elseif ($bytes > 1048576) {
1545	return number_format_i18n(($bytes / 1048576), 1) . ' '.__('MB', 'wp-optimize');
1546	} elseif ($bytes > 1024) {
1547	return number_format_i18n(($bytes / 1024), 1) . ' '.__('KB', 'wp-optimize');
1548	} else {
1549	return number_format_i18n($bytes, 0) . ' '.__('bytes', 'wp-optimize');
1550	}
1551	}
1552
1553	/**
1554	* Executed this function on cron event.
1555	*
1556	* @return void
1557	*/
1558	public function cron_action() {
1559
1560	$optimizer = $this->get_optimizer();
1561	$options = $this->get_options();
1562
1563	$this->log('WPO: Starting cron_action()');
1564
1565	if ('true' == $options->get_option('schedule')) {
1566	$this_options = $options->get_option('auto');
1567
1568	$optimizations = $optimizer->get_optimizations();
1569
1570	// Currently the output of the optimizations is not saved/used/logged.
1571	$results = $optimizer->do_optimizations($this_options, 'auto');
1572	}
1573
1574	}
1575
1576	/**
1577	* Schedule cron tasks used by plugin.
1578	*
1579	* @return void
1580	*/
1581	public function schedule_plugin_cron_tasks() {
1582	if (!wp_next_scheduled('wpo_plugin_cron_tasks')) {
1583	wp_schedule_event(current_time("timestamp", 0), 'twicedaily', 'wpo_plugin_cron_tasks');
1584	}
1585
1586	add_action('wpo_plugin_cron_tasks', array($this, 'do_plugin_cron_tasks'));
1587	}
1588
1589	/**
1590	* Do plugin background tasks.
1591	*
1592	* @return void
1593	*/
1594	public function do_plugin_cron_tasks() {
1595	// add tasks here.
1596	}
1597
1598	/**
1599	* This will customize a URL with a correct Affiliate link
1600	* This function can be update to suit any URL as longs as the URL is passed
1601	*
1602	* @param String $url - URL to be check to see if it an updraftplus match.
1603	* @param String $text - Text to be entered within the href a tags.
1604	* @param String $html - Any specific HTML to be added.
1605	* @param String $class - Specify a class for the href (including the attribute label)
1606	* @param Boolean $return_instead_of_echo - if set, then the result will be returned, not echo-ed.
1607	*
1608	* @return String\|void
1609	*/
1610	public function wp_optimize_url($url, $text, $html = '', $class = '', $return_instead_of_echo = false) {
1611	// Check if the URL is UpdraftPlus.
1612	$url = $this->maybe_add_affiliate_params($url); // Return URL - check if there is HTML such as images.
1613	if ('' != $html) {
1614	$result = '<a '.$class.' href="'.esc_attr($url).'">'.$html.'</a>';
1615	} else {
1616	$result = '<a '.$class.' href="'.esc_attr($url).'">'.htmlspecialchars($text).'</a>';
1617	}
1618	if ($return_instead_of_echo) return $result;
1619	echo $result;
1620	}
1621
1622	/**
1623	* Get an URL with an eventual affiliate ID
1624	*
1625	* @param string $url
1626	* @return string
1627	*/
1628	public function maybe_add_affiliate_params($url) {
1629	// Check if the URL is UpdraftPlus.
1630	if (false !== strpos($url, '//updraftplus.com')) {
1631	// Set URL with Affiliate ID.
1632	$url = add_query_arg(array('afref' => $this->get_notices()->get_affiliate_id()), $url);
1633
1634	// Apply filters.
1635	$url = apply_filters('wpoptimize_updraftplus_com_link', $url);
1636	}
1637	return apply_filters('wpoptimize_maybe_add_affiliate_params', $url);
1638	}
1639
1640	/**
1641	* Setup WPO logger(s)
1642	*/
1643	public function setup_loggers() {
1644
1645	$logger = $this->get_logger();
1646	$loggers = $this->wpo_loggers();
1647
1648	if (!empty($loggers)) {
1649	foreach ($loggers as $_logger) {
1650	$logger->add_logger($_logger);
1651	}
1652	}
1653
1654	add_action('wp_optimize_after_optimizations', array($this, 'after_optimizations_logger_action'));
1655	}
1656
1657	/**
1658	* Run logger actions after all optimizations done
1659	*/
1660	public function after_optimizations_logger_action() {
1661	$loggers = $this->get_logger()->get_loggers();
1662	if (!empty($loggers)) {
1663	foreach ($loggers as $logger) {
1664	if (is_a($logger, 'Updraft_Email_Logger')) {
1665	$logger->flush_log();
1666	}
1667	}
1668	}
1669	}
1670
1671	/**
1672	* Returns list of WPO loggers instances
1673	* Apply filter wp_optimize_loggers
1674	*
1675	* @return array
1676	*/
1677	public function wpo_loggers() {
1678
1679	$loggers = array();
1680	$loggers_classes_by_id = array();
1681	$options_keys = array();
1682
1683	$loggers_classes = $this->get_loggers_classes();
1684
1685	foreach ($loggers_classes as $logger_class => $source) {
1686	$loggers_classes_by_id[strtolower($logger_class)] = $logger_class;
1687	}
1688
1689	$options = $this->get_options();
1690
1691	$saved_loggers = $options->get_option('logging');
1692	$logger_additional_options = $options->get_option('logging-additional');
1693
1694	// create loggers classes instances.
1695	if (!empty($saved_loggers)) {
1696	// check for previous version options format.
1697	$keys = array_keys($saved_loggers);
1698
1699	// if options stored in old format then reformat it.
1700	if (false == is_numeric($keys[0])) {
1701	$_saved_loggers = array();
1702	foreach ($saved_loggers as $logger_id => $enabled) {
1703	if ($enabled) {
1704	$_saved_loggers[] = $logger_id;
1705	}
1706	}
1707
1708	// fill email with admin.
1709	if (array_key_exists('updraft_email_logger', $saved_loggers) && $saved_loggers['updraft_email_logger']) {
1710	$logger_additional_options['updraft_email_logger'] = array(
1711	get_option('admin_email')
1712	);
1713	}
1714
1715	$saved_loggers = $_saved_loggers;
1716	}
1717
1718	foreach ($saved_loggers as $i => $logger_id) {
1719
1720	if (!array_key_exists($logger_id, $loggers_classes_by_id)) continue;
1721
1722	$logger_class = $loggers_classes_by_id[$logger_id];
1723
1724	$logger = new $logger_class();
1725
1726	$logger_options = $logger->get_options_list();
1727
1728	if (!empty($logger_options)) {
1729	foreach (array_keys($logger_options) as $option_name) {
1730	if (array_key_exists($option_name, $options_keys)) {
1731	$options_keys[$option_name]++;
1732	} else {
1733	$options_keys[$option_name] = 0;
1734	}
1735
1736	$option_value = isset($logger_additional_options[$option_name][$options_keys[$option_name]]) ? $logger_additional_options[$option_name][$options_keys[$option_name]] : '';
1737
1738	// if options in old format then get correct value.
1739	if ('' === $option_value && array_key_exists($logger_id, $logger_additional_options)) {
1740	$option_value = array_shift($logger_additional_options[$logger_id]);
1741	}
1742
1743	$logger->set_option($option_name, $option_value);
1744	}
1745	}
1746
1747	// check if logger is active.
1748	$active = (!is_array($logger_additional_options) \|\| (array_key_exists('active', $logger_additional_options) && empty($logger_additional_options['active'][$i]))) ? false : true;
1749
1750	if ($active) {
1751	$logger->enable();
1752	} else {
1753	$logger->disable();
1754	}
1755
1756	$loggers[] = $logger;
1757	}
1758	}
1759
1760	$loggers = apply_filters('wp_optimize_loggers', $loggers);
1761
1762	return $loggers;
1763	}
1764
1765	/**
1766	* Returns associative array with logger class name in a key and path to class file in a value.
1767	*
1768	* @return array
1769	*/
1770	public function get_loggers_classes() {
1771	$loggers_classes = array(
1772	'Updraft_PHP_Logger' => WPO_PLUGIN_MAIN_PATH . 'includes/class-updraft-php-logger.php',
1773	'Updraft_Email_Logger' => WPO_PLUGIN_MAIN_PATH . 'includes/class-updraft-email-logger.php',
1774	'Updraft_Ring_Logger' => WPO_PLUGIN_MAIN_PATH . 'includes/class-updraft-ring-logger.php'
1775	);
1776
1777	$loggers_classes = apply_filters('wp_optimize_loggers_classes', $loggers_classes);
1778
1779	if (!empty($loggers_classes)) {
1780	foreach ($loggers_classes as $logger_class => $logger_file) {
1781	if (!class_exists($logger_class)) {
1782	if (is_file($logger_file)) {
1783	include_once($logger_file);
1784	}
1785	}
1786	}
1787	}
1788
1789	return $loggers_classes;
1790	}
1791
1792	/**
1793	* Returns information about all loggers classes.
1794	*
1795	* @return array
1796	*/
1797	public function get_loggers_classes_info() {
1798	$loggers_classes = $this->get_loggers_classes();
1799
1800	$loggers_classes_info = array();
1801
1802	if (!empty($loggers_classes)) {
1803	foreach (array_keys($loggers_classes) as $logger_class_name) {
1804
1805	if (!class_exists($logger_class_name)) continue;
1806
1807	$logger_id = strtolower($logger_class_name);
1808	$logger_class = new $logger_class_name();
1809
1810	$loggers_classes_info[$logger_id] = array(
1811	'description' => $logger_class->get_description(),
1812	'available' => $logger_class->is_available(),
1813	'allow_multiple' => $logger_class->is_allow_multiple(),
1814	'options' => $logger_class->get_options_list()
1815	);
1816	}
1817	}
1818
1819	return $loggers_classes_info;
1820	}
1821
1822	/**
1823	* Returns true if optimization works in multisite mode
1824	*
1825	* @return boolean
1826	*/
1827	public function is_multisite_mode() {
1828	return (is_multisite() && WP_Optimize()->is_premium());
1829	}
1830
1831	/**
1832	* Returns true if current user can run optimizations.
1833	*
1834	* @return bool
1835	*/
1836	public function can_run_optimizations() {
1837	// we don't check permissions for cron jobs.
1838	if (defined('DOING_CRON') && DOING_CRON) return true;
1839
1840	if (self::is_premium() && false == user_can(get_current_user_id(), 'wpo_run_optimizations')) return false;
1841	return true;
1842	}
1843
1844	/**
1845	* Returns true if current user can manage plugin options.
1846	*
1847	* @return bool
1848	*/
1849	public function can_manage_options() {
1850	if (self::is_premium() && false == user_can(get_current_user_id(), 'wpo_manage_settings')) return false;
1851	return true;
1852	}
1853
1854	/**
1855	* Output information message for users who have no permissions to run optimizations.
1856	*/
1857	public function prevent_run_optimizations_message() {
1858	$this->include_template('info-message.php', false, array('message' => __('You have no permissions to run optimizations.', 'wp-optimize')));
1859	}
1860
1861	/**
1862	* Output information message for users who have no permissions to manage settings.
1863	*/
1864	public function prevent_manage_options_info() {
1865	$this->include_template('info-message.php', false, array('message' => __('You have no permissions to manage WP-Optimize settings.', 'wp-optimize')));
1866	}
1867
1868	/**
1869	* Returns list of all sites in multisite
1870	*
1871	* @return array
1872	*/
1873	public function get_sites() {
1874	$sites = array();
1875	// check if function get_sites exists (since 4.6.0) else use wp_get_sites.
1876	if (function_exists('get_sites')) {
1877	$sites = get_sites(array('network_id' => null, 'number' => 999999));
1878	} elseif (function_exists('wp_get_sites')) {
1879	$sites = wp_get_sites(array('network_id' => null, 'limit' => 999999));
1880	}
1881	return $sites;
1882	}
1883
1884	/**
1885	* Output success/error messages from $output array.
1886	*
1887	* @param array $output ['messages' => success messages, 'errors' => error messages]
1888	*/
1889	private function wpo_render_output_messages($output) {
1890	foreach ($output['messages'] as $item) {
1891	echo '<div class="updated fade below-h2"><strong>'.$item.'</strong></div>';
1892	}
1893
1894	foreach ($output['errors'] as $item) {
1895	echo '<div class="error fade below-h2"><strong>'.$item.'</strong></div>';
1896	}
1897	}
1898
1899	/**
1900	* Returns script memory limit in megabytes.
1901	*
1902	* @param bool $memory_limit
1903	* @return int
1904	*/
1905	public function get_memory_limit($memory_limit = false) {
1906	// Returns in megabytes
1907	if (false == $memory_limit) $memory_limit = ini_get('memory_limit');
1908	$memory_limit = rtrim($memory_limit);
1909
1910	return $this->return_bytes($memory_limit);
1911	}
1912
1913	/**
1914	* Returns free memory in bytes.
1915	*
1916	* @return int
1917	*/
1918	public function get_free_memory() {
1919	return $this->get_memory_limit() - memory_get_usage();
1920	}
1921
1922	/**
1923	* Checks PHP memory_limit and WP_MAX_MEMORY_LIMIT values and return minimal.
1924	*
1925	* @return int memory limit in bytes.
1926	*/
1927	public function get_script_memory_limit() {
1928	$memory_limit = $this->get_memory_limit();
1929
1930	if (defined('WP_MAX_MEMORY_LIMIT')) {
1931	$wp_memory_limit = $this->get_memory_limit(WP_MAX_MEMORY_LIMIT);
1932
1933	if ($wp_memory_limit > 0 && $wp_memory_limit < $memory_limit) {
1934	$memory_limit = $wp_memory_limit;
1935	}
1936	}
1937
1938	return $memory_limit;
1939	}
1940
1941	/**
1942	* Returns max packet size for database.
1943	*
1944	* @return int\|string
1945	*/
1946	public function get_max_packet_size() {
1947	global $wpdb;
1948	static $mp = 0;
1949
1950	if ($mp > 0) return $mp;
1951
1952	$mp = (int) $wpdb->get_var("SELECT @@session.max_allowed_packet");
1953	// Default to 1MB
1954	$mp = (is_numeric($mp) && $mp > 0) ? $mp : 1048576;
1955	// 32MB
1956	if ($mp < 33554432) {
1957	$save = $wpdb->show_errors(false);
1958	$req = @$wpdb->query("SET GLOBAL max_allowed_packet=33554432");// phpcs:ignore Generic.PHP.NoSilencedErrors.Discouraged
1959	$wpdb->show_errors($save);
1960
1961	$mp = (int) $wpdb->get_var("SELECT @@session.max_allowed_packet");
1962	// Default to 1MB
1963	$mp = (is_numeric($mp) && $mp > 0) ? $mp : 1048576;
1964	}
1965
1966	return $mp;
1967	}
1968
1969	/**
1970	* Converts shorthand memory notation value to bytes.
1971	* From http://php.net/manual/en/function.ini-get.php
1972	*
1973	* @param string $val shorthand memory notation value.
1974	*/
1975	public function return_bytes($val) {
1976	$val = trim($val);
1977	$last = strtolower($val[strlen($val)-1]);
1978	$val = (int) $val;
1979	switch ($last) {
1980	case 'g':
1981	$val *= 1024;
1982	// no break
1983	case 'm':
1984	$val *= 1024;
1985	// no break
1986	case 'k':
1987	$val *= 1024;
1988	}
1989
1990	return $val;
1991	}
1992
1993	/**
1994	* Log fatal errors to defined log destinations.
1995	*/
1996	public function log_fatal_errors() {
1997	$last_error = error_get_last();
1998
1999	if (isset($last_error['type']) && E_ERROR === $last_error['type']) {
2000	$this->get_logger()->critical($last_error['message']);
2001	}
2002	}
2003
2004	/**
2005	* Close browser connection and continue script work. - Taken from UpdraftPlus
2006	*
2007	* @param array $txt Response to browser; this must be JSON (or if not, alter the Content-Type header handling below)
2008	* @return void
2009	*/
2010	public function close_browser_connection($txt = '') {
2011	if (!headers_sent()) {
2012	// Close browser connection so that it can resume AJAX polling
2013	header('Content-Length: '.(empty($txt) ? '0' : 4+strlen($txt)));
2014	header('Connection: close');
2015	header('Content-Encoding: none');
2016	}
2017
2018	if (session_id()) session_write_close();
2019	echo "\r\n\r\n";
2020	echo $txt;
2021	// These two added - 19-Feb-15 - started being required on local dev machine, for unknown reason (probably some plugin that started an output buffer).
2022	$ob_level = ob_get_level();
2023	while ($ob_level > 0) {
2024	ob_end_flush();
2025	$ob_level--;
2026	}
2027	flush();
2028	if (function_exists('fastcgi_finish_request')) fastcgi_finish_request();
2029	}
2030
2031	/**
2032	* Get the current theme's style.css headers
2033	*
2034	* @return array\|WP_Error
2035	*/
2036	public function get_stylesheet_headers() {
2037	static $headers;
2038	if (isset($headers)) return $headers;
2039
2040	$style = get_template_directory_uri() . '/style.css';
2041
2042	/**
2043	* Filters wp_remote_get parameters, when checking if browser cache is enabled.
2044	*
2045	* @param array $request_params Default parameters
2046	*/
2047	$request_params = apply_filters('wpoptimize_get_stylesheet_headers_args', array('timeout' => 10));
2048
2049	// trying to load style.css.
2050	$response = wp_remote_get($style, $request_params);
2051
2052	if (is_a($response, 'WP_Error')) return $response;
2053
2054	$headers = wp_remote_retrieve_headers($response);
2055
2056	if (is_a($headers, 'Requests_Utility_CaseInsensitiveDictionary')) {
2057	$headers = $headers->getAll();
2058	}
2059
2060	return $headers;
2061	}
2062
2063	/**
2064	* Try to change PHP script time limit.
2065	*/
2066	public function change_time_limit() {
2067	$time_limit = (defined('WP_OPTIMIZE_SET_TIME_LIMIT') && WP_OPTIMIZE_SET_TIME_LIMIT > 15) ? WP_OPTIMIZE_SET_TIME_LIMIT : 1800;
2068
2069	// Try to reduce the chances of PHP self-terminating via reaching max_execution_time.
2070	@set_time_limit($time_limit); // phpcs:ignore Generic.PHP.NoSilencedErrors.Discouraged
2071	}
2072
2073	/**
2074	* Does the request come from UDC
2075	*
2076	* @return boolean
2077	*/
2078	public function is_updraft_central_request() {
2079	return defined('UPDRAFTCENTRAL_COMMAND') && UPDRAFTCENTRAL_COMMAND;
2080	}
2081
2082	/**
2083	* Does the data need to be included in this request. Currently only true if the request is made from UpdraftCentral.
2084	*
2085	* @return boolean
2086	*/
2087	public function template_should_include_data() {
2088	/**
2089	* Filters wether data should be included in certain templates or not.
2090	*/
2091	return apply_filters('wpo_template_should_include_data', $this->is_updraft_central_request());
2092	}
2093	}
2094
2095	/**
2096	* Plugin activation actions.
2097	*/
2098	function wpo_activation_actions() {
2099	// If plugin activated by not a Network Administrator then deactivate plugin and show message.
2100	if (is_multisite() && !is_network_admin()) {
2101	deactivate_plugins(plugin_basename(__FILE__));
2102	wp_die(__('Only Network Administrator can activate WP-Optimize plugin.', 'wp-optimize').
2103	' <a href="'.admin_url('plugins.php').'">'.__('go back', 'wp-optimize').'</a>');
2104	}
2105
2106	// On activation, check if last-optimized option exists. If not, add 'newly-activated' option.
2107	if (!WP_Optimize()->get_options()->get_option('last-optimized', false)) {
2108	WP_Optimize()->get_options()->update_option('newly-activated', true);
2109	}
2110
2111	WP_Optimize()->get_options()->set_default_options();
2112	// WP_Optimize()->get_minify()->plugin_activate();
2113	}
2114
2115	/**
2116	* Plugin deactivation actions.
2117	*/
2118	function wpo_deactivation_actions() {
2119	WP_Optimize()->wpo_cron_deactivate();
2120	WP_Optimize()->get_page_cache()->disable();
2121	// WP_Optimize()->get_minify()->plugin_deactivate();
2122	}
2123
2124	function wpo_cron_deactivate() {
2125	WP_Optimize()->log('running wpo_cron_deactivate()');
2126	wp_clear_scheduled_hook('wpo_cron_event2');
2127	}
2128
2129	/**
2130	* Plugin uninstall actions.
2131	*/
2132	function wpo_uninstall_actions() {
2133	WP_Optimize()->get_options()->delete_all_options();
2134	wp_clear_scheduled_hook('wpo_cron_plugin');
2135	// WP_Optimize()->get_minify()->plugin_uninstall();
2136	}
2137
2138	function WP_Optimize() {
2139	return WP_Optimize::instance();
2140	}
2141
2142	endif;
2143
2144	$GLOBALS['wp_optimize'] = WP_Optimize();
2145