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