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 3.7.1, 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	$this->load_admin();
38
39	// Don't run the rest if PHP requirement isn't met
40	if (!WPO_MINIFY_PHP_VERSION_MET) return;
41
42	add_filter('wpo_cache_admin_bar_menu_items', array($this, 'admin_bar_menu'), 30, 1);
43
44	if (WP_Optimize::is_premium()) {
45	$this->load_premium();
46	}
47
48	/**
49	* Directory that stores the cache, including gzipped files and mobile specific cache
50	*/
51	if (!defined('WPO_CACHE_MIN_FILES_DIR')) define('WPO_CACHE_MIN_FILES_DIR', untrailingslashit(WP_CONTENT_DIR).'/cache/wpo-minify');
52	if (!defined('WPO_CACHE_MIN_FILES_URL')) define('WPO_CACHE_MIN_FILES_URL', untrailingslashit(WP_CONTENT_URL).'/cache/wpo-minify');
53
54	if (!class_exists('WP_Optimize_Minify_Cache_Functions')) {
55	include WP_OPTIMIZE_MINIFY_DIR.'/class-wp-optimize-minify-cache-functions.php';
56	}
57
58	$this->load_frontend();
59
60	// cron job to delete old wpo_min cache
61	add_action('wpo_minify_purge_old_cache', array('WP_Optimize_Minify_Cache_Functions', 'purge_old'));
62
63	add_action('init', array($this, 'schedule_or_unschedule_purge_old_cache_event'));
64
65	// Handle minify cache purging.
66	add_action('wp_loaded', array($this, 'handle_purge_minify_cache'));
67
68	}
69
70	/**
71	* Schedule or unschedule purge old cache event.
72	*
73	* @return void
74	*/
75	public function schedule_or_unschedule_purge_old_cache_event() {
76	if ($this->enabled) {
77	$this->schedule_purge_old_cache_event();
78	} else {
79	$this->unschedule_purge_old_cache_event();
80	}
81	}
82
83	/**
84	* Returns singleton instance object
85	*
86	* @return WP_Optimize_Minify Returns `WP_Optimize_Minify` object
87	*/
88	public static function instance() {
89	static $_instance = null;
90	if (null === $_instance) {
91	$_instance = new self();
92	}
93	return $_instance;
94	}
95
96	/**
97	* Admin toolbar processing
98	*
99	* @param array $menu_items
100	* @return array
101	*/
102	public function admin_bar_menu($menu_items) {
103	$wpo_minify_options = wp_optimize_minify_config()->get();
104
105	if (!$wpo_minify_options['enabled'] \|\| !current_user_can('manage_options') \|\| !($wpo_minify_options['enable_css'] \|\| $wpo_minify_options['enable_js'])) return $menu_items;
106
107	$act_url = remove_query_arg('wpo_minify_cache_purged');
108	$cache_path = WP_Optimize_Minify_Cache_Functions::cache_path();
109	$cache_size_info = '<h4>'.__('Minify cache', 'wp-optimize').'</h4><span><span class="label">'.__('Cache size:', 'wp-optimize').'</span> <span class="stats">'.esc_html(WP_Optimize_Minify_Cache_Functions::get_cachestats($cache_path['cachedir'])).'</span></span>';
110
111	$menu_items[] = array(
112	'id' => 'wpo_minify_cache_stats',
113	'title' => $cache_size_info,
114	'meta' => array(
115	'class' => 'wpo-cache-stats',
116	),
117	'parent' => 'wpo_purge_cache',
118	);
119
120	$menu_items[] = array(
121	'parent' => 'wpo_purge_cache',
122	'id' => 'purge_minify_cache',
123	'title' => __('Purge minify cache', 'wp-optimize'),
124	'href' => add_query_arg('_wpo_purge_minify_cache', wp_create_nonce('wpo_purge_minify_cache'), $act_url),
125	);
126	return $menu_items;
127	}
128
129	/**
130	* Check if purge single page action sent and purge cache.
131	*/
132	public function handle_purge_minify_cache() {
133	$wpo_minify_options = wp_optimize_minify_config()->get();
134	if (!$wpo_minify_options['enabled'] \|\| !current_user_can('manage_options')) return;
135
136	if (isset($_GET['wpo_minify_cache_purged'])) {
137	if (is_admin()) {
138	add_action('admin_notices', array($this, 'notice_purge_minify_cache_success'));
139	return;
140	} else {
141	$message = __('Minify cache purged', 'wp-optimize');
142	printf('<script>alert("%s");</script>', $message);
143	return;
144	}
145	}
146
147	if (!isset($_GET['_wpo_purge_minify_cache'])) return;
148
149	if (wp_verify_nonce($_GET['_wpo_purge_minify_cache'], 'wpo_purge_minify_cache')) {
150	$success = false;
151
152	// Purge minify
153	$results = $this->minify_commands->purge_minify_cache();
154	if ("caches cleared" == $results['result']) $success = true;
155
156	// remove nonce from url and reload page.
157	wp_redirect(add_query_arg('wpo_minify_cache_purged', $success, remove_query_arg('_wpo_purge_minify_cache')));
158	exit;
159
160	}
161	}
162
163	/**
164	* Load the admin class
165	*
166	* @return void
167	*/
168	private function load_admin() {
169	if (!is_admin()) return;
170	new WP_Optimize_Minify_Admin();
171	}
172
173	/**
174	* Load the frontend class
175	*
176	* @return void
177	*/
178	private function load_frontend() {
179	if ($this->enabled) {
180	new WP_Optimize_Minify_Front_End();
181	}
182	}
183
184	/**
185	* Load the premium class
186	*
187	* @return void
188	*/
189	private function load_premium() {
190	new WP_Optimize_Minify_Premium();
191	}
192
193	/**
194	* Run during activation
195	* Increment cache first as it will save files to that dir
196	*
197	* @return void
198	*/
199	public function plugin_activate() {
200	// increment cache time
201	if (class_exists('WP_Optimize_Minify_Cache_Functions')) {
202	WP_Optimize_Minify_Cache_Functions::cache_increment();
203	}
204	}
205
206	/**
207	* If the WP cron event for scheduling purging of the minify cache does not exist, then create it
208	*/
209	private function schedule_purge_old_cache_event() {
210	if (!wp_next_scheduled('wpo_minify_purge_old_cache')) {
211	wp_schedule_event(time() + 43200, 'daily', 'wpo_minify_purge_old_cache');
212	}
213	}
214
215	/**
216	* Unschedule purging of the minify cache
217	*
218	* @retrun void
219	*/
220	private function unschedule_purge_old_cache_event() {
221	// old cache purge event cron
222	wp_clear_scheduled_hook('wpo_minify_purge_old_cache');
223	}
224
225	/**
226	* Run during plugin deactivation
227	*
228	* @return void
229	*/
230	public function plugin_deactivate() {
231	if (defined('WPO_MINIFY_PHP_VERSION_MET') && !WPO_MINIFY_PHP_VERSION_MET) return;
232	if (class_exists('WP_Optimize_Minify_Cache_Functions') && WP_Optimize()->get_page_cache()->should_purge) {
233	WP_Optimize_Minify_Cache_Functions::purge_temp_files();
234	WP_Optimize_Minify_Cache_Functions::purge_old();
235	WP_Optimize_Minify_Cache_Functions::purge_others();
236	}
237
238	$this->unschedule_purge_old_cache_event();
239	}
240
241	/**
242	* Run during plugin uninstall
243	*
244	* @return void
245	*/
246	public function plugin_uninstall() {
247	if (defined('WPO_MINIFY_PHP_VERSION_MET') && !WPO_MINIFY_PHP_VERSION_MET) return;
248	// remove options from DB
249	if (!function_exists('wp_optimize_minify_config')) {
250	include WP_OPTIMIZE_MINIFY_DIR.'/class-wp-optimize-minify-config.php';
251	}
252	wp_optimize_minify_config()->purge();
253	// remove minified files
254	if (class_exists('WP_Optimize_Minify_Cache_Functions')) {
255	WP_Optimize_Minify_Cache_Functions::purge();
256	WP_Optimize_Minify_Cache_Functions::purge_others();
257	}
258	}
259
260	/**
261	* Shows success notice for purge minify cache
262	*/
263	public function notice_purge_minify_cache_success() {
264	$this->show_notice(__('The minify cache was successfully purged.', 'wp-optimize'), 'success');
265	}
266
267	/**
268	* Show notification in WordPress admin.
269	*
270	* @param string $message HTML (no further escaping is performed)
271	* @param string $type error, warning, success, or info
272	*/
273	public function show_notice($message, $type) {
274	global $current_screen;
275
276	if ($current_screen && is_callable(array($current_screen, 'is_block_editor')) && $current_screen->is_block_editor()) :
277	?>
278	<script>
279	window.addEventListener('load', function() {
280	(function(wp) {
281	if (window.wp && wp.hasOwnProperty('data') && 'function' == typeof wp.data.dispatch) {
282	wp.data.dispatch('core/notices').createNotice(
283	'<?php echo $type; ?>',
284	'<?php echo $message; ?>',
285	{
286	isDismissible: true,
287	}
288	);
289	}
290	})(window.wp);
291	});
292	</script>
293	<?php else : ?>
294	<div class="notice wpo-notice notice-<?php echo $type; ?> is-dismissible">
295	<p><?php echo $message; ?></p>
296	</div>
297	<?php
298	endif;
299	}
300
301	/**
302	* Check if current user can purge cache.
303	*
304	* @return bool
305	*/
306	public function can_purge_cache() {
307	$required_capability = is_multisite() ? 'manage_network_options' : 'manage_options';
308
309	if (WP_Optimize::is_premium()) {
310	return current_user_can($required_capability) \|\| WP_Optimize_Premium()->can_purge_the_cache();
311	} else {
312	return current_user_can($required_capability);
313	}
314	}
315	}
316