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