wp-optimize / minify / class-wp-optimize-minify.php

class-wp-optimize-minify.php in WP-Optimize – Cache, Compress images, Minify & Clean database to boost page speed & performance 4.5.2, at minify/class-wp-optimize-minify.php

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1	<?php
2	if (!defined('ABSPATH')) die('No direct access allowed');
3
4	define('WP_OPTIMIZE_MINIFY_VERSION', '2.6.5');
5	define('WP_OPTIMIZE_MINIFY_DIR', dirname(__FILE__));
6	if (!defined('WP_OPTIMIZE_SHOW_MINIFY_ADVANCED')) define('WP_OPTIMIZE_SHOW_MINIFY_ADVANCED', false);
7
8	class WP_Optimize_Minify {
9
10	/**
11	* Minify commands object
12	*
13	* @var WP_Optimize_Minify_Commands
14	*/
15	public $minify_commands;
16
17	/**
18	* @var bool
19	*/
20	private $enabled;
21
22	/**
23	* Constructor - Initialize actions and filters
24	*
25	* @return void
26	*/
27	public function __construct() {
28
29	$this->minify_commands = new WP_Optimize_Minify_Commands();
30
31	if (!class_exists('WP_Optimize_Minify_Config')) {
32	include WP_OPTIMIZE_MINIFY_DIR.'/class-wp-optimize-minify-config.php';
33	}
34
35	$this->enabled = wp_optimize_minify_config()->is_enabled();
36
37	$this->load_admin();
38
39	add_filter('wpo_cache_admin_bar_menu_items', array($this, 'admin_bar_menu'), 30);
40
41	if (WP_Optimize::is_premium()) {
42	$this->load_premium();
43	}
44
45	/**
46	* Directory that stores the cache, including gzipped files and mobile specific cache
47	*/
48	if (!defined('WPO_CACHE_MIN_FILES_DIR')) define('WPO_CACHE_MIN_FILES_DIR', untrailingslashit(WP_CONTENT_DIR).'/cache/wpo-minify');
49	if (!defined('WPO_CACHE_MIN_FILES_URL')) define('WPO_CACHE_MIN_FILES_URL', untrailingslashit(WP_CONTENT_URL).'/cache/wpo-minify');
50
51	if (!class_exists('WP_Optimize_Minify_Cache_Functions')) {
52	include WP_OPTIMIZE_MINIFY_DIR.'/class-wp-optimize-minify-cache-functions.php';
53	}
54
55	$this->load_frontend();
56
57	// cron job to delete old wpo_min cache
58	add_action('wpo_minify_purge_old_cache', array('WP_Optimize_Minify_Cache_Functions', 'purge_old'));
59
60	add_action('wp_loaded', array($this, 'schedule_or_unschedule_purge_old_cache_event'));
61
62	// Handle minify cache purging.
63	add_action('wp_loaded', array($this, 'handle_purge_minify_cache'));
64
65	}
66
67	/**
68	* Schedule or unschedule purge old cache event.
69	*
70	* @return void
71	*/
72	public function schedule_or_unschedule_purge_old_cache_event() {
73	if ($this->enabled) {
74	$this->schedule_purge_old_cache_event();
75	} else {
76	$this->unschedule_purge_old_cache_event();
77	}
78	}
79
80	/**
81	* Returns singleton instance object
82	*
83	* @return WP_Optimize_Minify Returns `WP_Optimize_Minify` object
84	*/
85	public static function instance() {
86	static $_instance = null;
87	if (null === $_instance) {
88	$_instance = new self();
89	}
90	return $_instance;
91	}
92
93	/**
94	* Admin toolbar processing
95	*
96	* @param array $menu_items
97	* @return array
98	*/
99	public function admin_bar_menu($menu_items) {
100	$wpo_minify_options = wp_optimize_minify_config()->get();
101
102	if (!$wpo_minify_options['enabled'] \|\| !current_user_can('manage_options') \|\| !($wpo_minify_options['enable_css'] \|\| $wpo_minify_options['enable_js'])) return $menu_items;
103
104	$act_url = remove_query_arg('wpo_minify_cache_purged');
105	$cache_path = WP_Optimize_Minify_Cache_Functions::cache_path();
106	$cache_size_info = '<h4>'.__('Minify cache', 'wp-optimize').'</h4><span><span class="label">'.__('Cache size:', 'wp-optimize').'</span> <span class="stats">'.esc_html(WP_Optimize_Minify_Cache_Functions::get_cachestats($cache_path['cachedir'])).'</span></span>';
107
108	$menu_items[] = array(
109	'id' => 'wpo_minify_cache_stats',
110	'title' => $cache_size_info,
111	'meta' => array(
112	'class' => 'wpo-cache-stats',
113	),
114	'parent' => 'wpo_purge_cache',
115	);
116
117	$menu_items[] = array(
118	'parent' => 'wpo_purge_cache',
119	'id' => 'purge_minify_cache',
120	'title' => __('Purge minify cache', 'wp-optimize'),
121	'href' => add_query_arg('_wpo_purge_minify_cache', wp_create_nonce('wpo_purge_minify_cache'), $act_url),
122	);
123	return $menu_items;
124	}
125
126	/**
127	* Check if purge single page action sent and purge cache.
128	*/
129	public function handle_purge_minify_cache() {
130	$wpo_minify_options = wp_optimize_minify_config()->get();
131	if (!$wpo_minify_options['enabled'] \|\| !current_user_can('manage_options')) return;
132
133	$is_cache_purged = TeamUpdraft\WP_Optimize\Includes\Fragments\fetch_superglobal('get', 'wpo_minify_cache_purged');
134	if (null !== $is_cache_purged) {
135	if (is_admin()) {
136	add_action('admin_notices', array($this, 'notice_purge_minify_cache_success'));
137	return;
138	} else {
139	$message = __('Minify cache purged', 'wp-optimize');
140	printf('<script>alert("%s");</script>', esc_html($message));
141	return;
142	}
143	}
144
145	$nonce = TeamUpdraft\WP_Optimize\Includes\Fragments\verify_nonce('_wpo_purge_minify_cache', 'wpo_purge_minify_cache');
146
147	if ($nonce) {
148	$success = false;
149
150	// Purge minify
151	$results = $this->minify_commands->purge_minify_cache();
152	if ("caches cleared" === $results['result']) $success = true;
153
154	// remove nonce from url and reload page.
155	wp_redirect(add_query_arg('wpo_minify_cache_purged', $success, remove_query_arg('_wpo_purge_minify_cache')));
156	exit;
157
158	}
159	}
160
161	/**
162	* Load the admin class
163	*
164	* @return void
165	*/
166	private function load_admin() {
167	if (!is_admin()) return;
168	new WP_Optimize_Minify_Admin();
169	}
170
171	/**
172	* Load the frontend class
173	*
174	* @return void
175	*/
176	private function load_frontend() {
177	if ($this->enabled) {
178	new WP_Optimize_Minify_Front_End();
179	}
180	}
181
182	/**
183	* Load the premium class
184	*
185	* @return void
186	*/
187	private function load_premium() {
188	new WP_Optimize_Minify_Premium();
189	}
190
191	/**
192	* Run during activation
193	* Increment cache first as it will save files to that dir
194	*
195	* @return void
196	*/
197	public function plugin_activate() {
198	// increment cache time
199	if (class_exists('WP_Optimize_Minify_Cache_Functions')) {
200	WP_Optimize_Minify_Cache_Functions::cache_increment();
201	}
202	}
203
204	/**
205	* If the WP cron event for scheduling purging of the minify cache does not exist, then create it
206	*/
207	private function schedule_purge_old_cache_event() {
208	if (!wp_next_scheduled('wpo_minify_purge_old_cache')) {
209	wp_schedule_event(time() + 43200, 'daily', 'wpo_minify_purge_old_cache');
210	}
211	}
212
213	/**
214	* Unschedule purging of the minify cache
215	*
216	* @return void
217	*/
218	private function unschedule_purge_old_cache_event() {
219	// old cache purge event cron
220	wp_clear_scheduled_hook('wpo_minify_purge_old_cache');
221	}
222
223	/**
224	* Run during plugin deactivation
225	*
226	* @return void
227	*/
228	public function plugin_deactivate() {
229	if (class_exists('WP_Optimize_Minify_Cache_Functions') && WP_Optimize()->get_page_cache()->should_purge) {
230	WP_Optimize_Minify_Cache_Functions::purge_temp_files();
231	WP_Optimize_Minify_Cache_Functions::purge_old();
232	WP_Optimize_Minify_Cache_Functions::purge_others();
233	}
234
235	$this->unschedule_purge_old_cache_event();
236	}
237
238	/**
239	* Run during plugin uninstall
240	*
241	* @return void
242	*/
243	public function plugin_uninstall() {
244	// remove options from DB
245	if (!function_exists('wp_optimize_minify_config')) {
246	include WP_OPTIMIZE_MINIFY_DIR.'/class-wp-optimize-minify-config.php';
247	}
248	wp_optimize_minify_config()->purge();
249	// remove minified files
250	if (class_exists('WP_Optimize_Minify_Cache_Functions')) {
251	WP_Optimize_Minify_Cache_Functions::purge();
252	WP_Optimize_Minify_Cache_Functions::purge_others();
253	}
254	}
255
256	/**
257	* Shows success notice for purge minify cache
258	*/
259	public function notice_purge_minify_cache_success() {
260	$this->show_notice(__('The minify cache was successfully purged.', 'wp-optimize'), 'success');
261	}
262
263	/**
264	* Show notification in WordPress admin.
265	*
266	* @param string $message HTML (no further escaping is performed)
267	* @param string $type error, warning, success, or info
268	*/
269	public function show_notice($message, $type) {
270	global $current_screen;
271
272	if ($current_screen && is_callable(array($current_screen, 'is_block_editor')) && $current_screen->is_block_editor()) :
273	?>
274	<script>
275	window.addEventListener('load', function() {
276	(function(wp) {
277	if (window.wp && wp.hasOwnProperty('data') && 'function' == typeof wp.data.dispatch) {
278	wp.data.dispatch('core/notices').createNotice(
279	'<?php echo esc_js($type); ?>',
280	'<?php echo wp_kses_post($message); ?>',
281	{
282	isDismissible: true,
283	}
284	);
285	}
286	})(window.wp);
287	});
288	</script>
289	<?php else : ?>
290	<div class="notice wpo-notice notice-<?php echo esc_attr($type); ?> is-dismissible">
291	<p><?php echo wp_kses_post($message); ?></p>
292	</div>
293	<?php
294	endif;
295	}
296
297	/**
298	* Check if current user can purge cache.
299	*
300	* @return bool
301	*/
302	public function can_purge_cache() {
303	$required_capability = is_multisite() ? 'manage_network_options' : 'manage_options';
304
305	if (WP_Optimize::is_premium()) {
306	return current_user_can($required_capability) \|\| WP_Optimize_Premium()->can_purge_the_cache();
307	} else {
308	return current_user_can($required_capability);
309	}
310	}
311	}
312