wp-optimize / cache / class-wp-optimize-cache-commands.php

class-wp-optimize-cache-commands.php in WP-Optimize – Cache, Compress images, Minify & Clean database to boost page speed & performance 3.2.21, at cache/class-wp-optimize-cache-commands.php

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1	<?php
2
3	if (!defined('ABSPATH')) die('No direct access allowed');
4
5	/**
6	* All cache commands that are intended to be available for calling from any sort of control interface (e.g. wp-admin, UpdraftCentral) go in here. All public methods should either return the data to be returned, or a WP_Error with associated error code, message and error data.
7	*/
8	class WP_Optimize_Cache_Commands {
9
10	private $optimizer;
11
12	private $options;
13
14	/**
15	* WP_Optimize_Cache_Commands constructor.
16	*/
17	public function __construct() {
18	$this->optimizer = WP_Optimize()->get_optimizer();
19	$this->options = WP_Optimize()->get_options();
20	}
21
22	/**
23	* Save cache settings
24	*
25	* @param array $data
26	*
27	* @return array
28	*/
29	public function save_cache_settings($data) {
30
31	if (!class_exists('WPO_Cache_Config')) return array(
32	'result' => false,
33	'message' => "WPO_Cache_Config class doesn't exist",
34	);
35
36	// filter for validate cache settings before save it.
37	$validation = apply_filters('wpo_save_cache_settings_validation', $data['cache-settings']);
38
39	if (!empty($validation) && isset($validation['result']) && false === $validation['result']) {
40	return $validation;
41	}
42
43	$enabled = false;
44	$disabled = false;
45	$return = !empty($validation) ? $validation : array();
46	$previous_settings = WPO_Cache_Config::instance()->get();
47
48	// Attempt to change current status if required
49	if (isset($previous_settings['enable_page_caching']) && $previous_settings['enable_page_caching'] != $data['cache-settings']['enable_page_caching']) {
50	// Disable cache.
51	if (empty($data['cache-settings']['enable_page_caching'])) {
52	$disabled = WPO_Page_Cache::instance()->disable();
53	// Disabling failed
54	if ($disabled && is_wp_error($disabled)) {
55	// If disabling failed, we re-enable whatever was disabled, to make sure nothing breaks.
56	if ($previous_settings['enable_page_caching']) WPO_Page_Cache::instance()->enable(true);
57	$return['error'] = array(
58	'code' => $disabled->get_error_code(),
59	'message' => $disabled->get_error_message()
60	);
61	} elseif (WPO_Page_Cache::instance()->has_warnings()) {
62	$return['warnings_label'] = __('Page caching was disabled, but with some warnings:', 'wp-optimize');
63	$return['warnings'] = WPO_Page_Cache::instance()->get_errors('warning');
64	}
65	} else {
66	// we need to rebuild advanced-cache.php and add WP_CACHE to wp-config.
67	$enabled = WPO_Page_Cache::instance()->enable(true);
68	// Enabling failed
69	if (is_wp_error($enabled)) {
70	// disable everything, to avoid half enabled things
71	WPO_Page_Cache::instance()->disable();
72	$return['error'] = array(
73	'code' => $enabled->get_error_code(),
74	'message' => $enabled->get_error_message()
75	);
76
77	if (WPO_Page_Cache::instance()->advanced_cache_file_writing_error) {
78	$return['advanced_cache_file_writing_error'] = true;
79	$return['advanced_cache_file_content'] = WPO_Page_Cache::instance()->advanced_cache_file_content;
80	}
81	} elseif (WPO_Page_Cache::instance()->has_warnings()) {
82	$return['warnings_label'] = __('Page caching was enabled, but with some warnings:', 'wp-optimize');
83	$return['warnings'] = WPO_Page_Cache::instance()->get_errors('warning');
84	}
85	}
86	// Override enabled setting value
87	$data['cache-settings']['enable_page_caching'] = ($enabled && !is_wp_error($enabled)) \|\| ($previous_settings['enable_page_caching'] && is_wp_error($disabled));
88	} else {
89	$data['cache-settings']['enable_page_caching'] = $previous_settings['enable_page_caching'];
90	$enabled = $previous_settings['enable_page_caching'];
91	}
92
93	$data['cache-settings']['use_webp_images'] = (bool) WP_Optimize()->get_options()->get_option('webp_conversion');
94
95	$skip_if_no_file_yet = !$enabled \|\| is_wp_error($enabled);
96	$save_settings_result = WPO_Cache_Config::instance()->update($data['cache-settings'], $skip_if_no_file_yet);
97
98	if ($save_settings_result && !is_wp_error($save_settings_result)) {
99	WP_Optimize_Page_Cache_Preloader::instance()->cache_settings_updated($data['cache-settings'], $previous_settings);
100	$return['result'] = $save_settings_result;
101	} else {
102	// Saving the settings returned an error
103	if (is_wp_error($save_settings_result)) {
104	if (isset($return['error'])) {
105	$return['error']['message'] .= "\n\n".$save_settings_result->get_error_message();
106	} else {
107	$return['error'] = array(
108	'code' => $save_settings_result->get_error_code(),
109	'message' => $save_settings_result->get_error_message()
110	);
111	}
112	}
113	$return['result'] = false;
114	}
115
116	$return['enabled'] = ($enabled && !is_wp_error($enabled)) \|\| ($previous_settings['enable_page_caching'] && is_wp_error($disabled));
117
118	return $return;
119	}
120
121	/**
122	* Get information about current cache status. Used in cli commands.
123	*
124	* @return array
125	*/
126	public function get_status_info() {
127	$status = array();
128
129	$status[] = WPO_Page_Cache::instance()->is_enabled() ? __('Caching is enabled', 'wp-optimize') : __('Caching is disabled', 'wp-optimize');
130
131	$preloader_status = WP_Optimize_Page_Cache_Preloader::instance()->get_status_info();
132	$status[] = sprintf(__('Current cache size: %s', 'wp-optimize'), $preloader_status['size']);
133	$status[] = sprintf(__('Number of files: %s', 'wp-optimize'), $preloader_status['file_count']);
134
135	if (array_key_exists('message', $preloader_status)) $status[] = $preloader_status['message'];
136
137	$status['message'] = join(PHP_EOL, $status);
138
139	return $status;
140	}
141
142	/**
143	* Enable cache.
144	*/
145	public function enable() {
146	$settings = WPO_Cache_Config::instance()->get();
147	$settings['enable_page_caching'] = true;
148	return $this->format_save_cache_settings_response($this->save_cache_settings(array('cache-settings' => $settings)));
149	}
150
151	/**
152	* Disable cache.
153	*/
154	public function disable() {
155	$settings = WPO_Cache_Config::instance()->get();
156	$settings['enable_page_caching'] = false;
157	return $this->format_save_cache_settings_response($this->save_cache_settings(array('cache-settings' => $settings)));
158	}
159
160	/**
161	* Purge WP-Optimize page cache.
162	*
163	* @return array
164	*/
165	public function purge_page_cache() {
166
167	if (!WP_Optimize()->get_page_cache()->is_enabled()) {
168	return array(
169	'success' => false,
170	'error' => __('Cache is not enabled.', 'wp-optimize'),
171	);
172	}
173
174	if (!WP_Optimize()->get_page_cache()->can_purge_cache() && !(defined('WP_CLI') && WP_CLI)) {
175	return array(
176	'success' => false,
177	'message' => __('You do not have permission to purge the cache', 'wp-optimize'),
178	);
179	}
180
181	$purged = WP_Optimize()->get_page_cache()->purge();
182	$cache_size = WP_Optimize()->get_page_cache()->get_cache_size();
183	$wpo_page_cache_preloader = WP_Optimize_Page_Cache_Preloader::instance();
184
185	$response = array(
186	'success' => $purged,
187	'size' => WP_Optimize()->format_size($cache_size['size']),
188	'file_count' => $cache_size['file_count'],
189	);
190
191	// if scheduled preload enabled then reschedule and run preloader.
192	if ($wpo_page_cache_preloader->is_scheduled_preload_enabled()) {
193	// cancel preload and reschedule preload action.
194	$wpo_page_cache_preloader->cancel_preload();
195	$wpo_page_cache_preloader->reschedule_preload();
196
197	// run preloader.
198	$wpo_page_cache_preloader->run('scheduled', $response);
199	}
200
201	if ($response['success']) {
202	$response['message'] = __('Page cache purged successfully', 'wp-optimize');
203	}
204
205	return $response;
206	}
207
208	/**
209	* Run cache preload (for wp-cli).
210	*
211	* @return array\|bool
212	*/
213	public function run_cache_preload_cli() {
214	if (!(defined('WP_CLI') && WP_CLI)) return false;
215
216	// define WPO_ADVANCED_CACHE constant as WP-CLI doesn't load advanced-cache.php file
217	// but we check this constant value wen detecting status of cache
218	if (!defined('WPO_ADVANCED_CACHE')) define('WPO_ADVANCED_CACHE', true);
219	// don't interrupt queue processing
220	add_filter('updraft_interrupt_tasks_queue_load-url-task', '__return_false', 99);
221
222	// if preloading is running then exit.
223	if (WP_Optimize_Page_Cache_Preloader::instance()->is_busy()) {
224	return array(
225	'success' => false,
226	'error' => __('Preloading is currently running in another process.', 'wp-optimize'),
227	);
228	}
229
230	// set default response.
231	$response = array(
232	'success' => true,
233	'message' => __('All URLs were preloaded into cache successfully', 'wp-optimize'),
234	);
235
236	WP_CLI::log(__('Preloading URLs into cache...', 'wp-optimize'));
237
238	return WP_Optimize_Page_Cache_Preloader::instance()->run('manual', $response);
239	}
240
241	/**
242	* Run cache preload action.
243	*
244	* @return void\|array - Doesn't return anything if run() is successful (Run() prints a JSON object and closed browser connection) or an array if failed.
245	*/
246	public function run_cache_preload() {
247	return WP_Optimize_Page_Cache_Preloader::instance()->run('manual');
248	}
249
250	/**
251	* Cancel cache preload action.
252	*
253	* @return array
254	*/
255	public function cancel_cache_preload() {
256	WP_Optimize_Page_Cache_Preloader::instance()->cancel_preload();
257	return WP_Optimize_Page_Cache_Preloader::instance()->get_status_info();
258	}
259
260	/**
261	* Get status of cache preload.
262	*
263	* @return array
264	*/
265	public function get_cache_preload_status() {
266	return WP_Optimize_Page_Cache_Preloader::instance()->get_status_info();
267	}
268
269	/**
270	* Enable or disable browser cache.
271	*
272	* @param array $params - ['browser_cache_expire' => '1 month 15 days 2 hours' \|\| '' - for disable cache]
273	* @return array
274	*/
275	public function enable_browser_cache($params) {
276	return WP_Optimize()->get_browser_cache()->enable_browser_cache_command_handler($params);
277	}
278
279	/**
280	* Format save_cache_settings() result for displaying in WP-CLI console
281	*
282	* @param array $response
283	* @return array
284	*/
285	private function format_save_cache_settings_response($response) {
286	$result = array(
287	'success' => $response['result'],
288	);
289
290	if (isset($response['error'])) {
291	$result['success'] = false;
292	$result['error'] = $response['error']['message'];
293	}
294
295	if ($result['success']) {
296	$result['message'] = __('Page cache settings updated successfully.', 'wp-optimize');
297	}
298
299	return $result;
300	}
301	}
302