wp-optimize / includes / class-wpo-uninstall.php

class-wpo-uninstall.php in WP-Optimize – Cache, Compress images, Minify & Clean database to boost page speed & performance 4.5.4, at includes/class-wpo-uninstall.php

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1	<?php
2	if (!defined('ABSPATH')) die('Access denied.');
3
4	if (!class_exists('WPO_Uninstall')) :
5
6	class WPO_Uninstall {
7
8	/**
9	* Actions to be performed upon plugin uninstallation
10	*
11	* @return void
12	*/
13	public static function actions(): void {
14	self::require_dependency();
15
16	self::maybe_delete_premium_cache_data();
17	if (self::is_plugin_active()) {
18	return;
19	}
20
21	WP_Optimize()->get_gzip_compression()->disable();
22	WP_Optimize()->get_browser_cache()->disable();
23	WP_Optimize()->get_options()->delete_all_options();
24	WP_Optimize()->get_minify()->plugin_uninstall();
25	WP_Optimize()->get_options()->wipe_settings();
26	WP_Optimize()->delete_transients_and_semaphores();
27	WP_Optimize()->get_table_management()->delete_plugin_tables();
28	Updraft_Tasks_Activation::uninstall(WPO_PLUGIN_SLUG);
29	self::delete_wpo_folder();
30	self::delete_htaccess_file_in_uploads_folder();
31	self::cron_deactivate();
32	}
33
34	/**
35	* `wpo_delete_files` defined in dependency
36	*
37	* @return void
38	*/
39	private static function require_dependency(): void {
40	require_once WPO_PLUGIN_MAIN_PATH . 'cache/file-based-page-cache-functions.php';
41	}
42
43	/**
44	* Delete cache data created by premium-only features.
45	*
46	* Only runs when premium is not active, to avoid wiping premium data
47	* while the premium version is still installed.
48	*
49	* @return void
50	*/
51	private static function delete_premium_cache_data(): void {
52	if (class_exists('WPO_Gravatar_Data')) {
53	wpo_delete_files(WPO_Gravatar_Data::WPO_CACHE_GRAVATAR_DIR);
54	}
55
56	if (class_exists('WP_Optimize_Minify_Analytics')) {
57	wpo_delete_files(WP_Optimize_Minify_Analytics::WPO_CACHE_GTAG_DIR);
58	}
59
60	if (class_exists('WP_Optimize_Lazy_Load')) {
61	WP_Optimize_Lazy_Load::instance()->delete_image_cache();
62	}
63	}
64
65	/**
66	* Returns absolute path to uploads folder
67	*
68	* @return string
69	*/
70	private static function get_upload_basedir(): string {
71	$upload_dir = wp_get_upload_dir();
72	return trailingslashit($upload_dir['basedir']);
73	}
74
75	/**
76	* Returns an array of sub folders in `uploads/wpo` folder
77	*
78	* @return array<string>
79	*/
80	private static function get_wpo_sub_folders(): array {
81	$sub_folders = array(
82	'add-type',
83	'content-digest',
84	'crash-tester',
85	'directory-index',
86	'header-set',
87	'images',
88	'module-loaded',
89	'rewrite',
90	'server-signature',
91	'logs',
92	);
93
94	/**
95	* @var array<string> $filtered_sub_folders
96	*/
97	$filtered_sub_folders = apply_filters('wpo_uploads_sub_folders', $sub_folders);
98	return is_array($filtered_sub_folders) ? $filtered_sub_folders : $sub_folders;
99	}
100
101	/**
102	* Returns an array of known files in `uploads/wpo` root folder
103	*
104	* @return array<string>
105	*/
106	private static function get_wpo_root_files(): array {
107	return array(
108	'wpo-plugins-tables-list.json'
109	);
110	}
111
112	/**
113	* Delete `uploads/wpo` folder, its known sub folders, and known files
114	*
115	* @return void
116	*/
117	public static function delete_wpo_folder(): void {
118	self::require_dependency();
119	$wpo_folder = self::get_wpo_folder();
120
121	if (!is_dir($wpo_folder)) {
122	return;
123	}
124
125	// Even though `wpo_delete_files()` can delete recursively, we can't be sure `wpo` folder
126	// only contains our own files and folders, we need to be specific here about what is going to be deleted
127	$wpo_sub_folders = self::get_wpo_sub_folders();
128	foreach ($wpo_sub_folders as $folder) {
129	wpo_delete_files($wpo_folder . $folder);
130	}
131	self::delete_wpo_root_files();
132
133	self::maybe_delete_empty_folder($wpo_folder);
134	}
135
136	/**
137	* Removes given folder, if it is empty
138	*
139	* @param string $wpo_folder Path of folder to check, and delete
140	*
141	* @return void
142	*/
143	private static function maybe_delete_empty_folder(string $wpo_folder): void {
144	// phpcs:disable
145	// Generic.PHP.NoSilencedErrors.Discouraged -- suppress warning if it arises due to race condition
146	// WordPress.WP.AlternativeFunctions.file_system_operations_rmdir -- Not applicable in this context
147	// If `wpo` is empty after deleting our own stuff, folder itself is ours, so remove it too
148	$files = @scandir($wpo_folder);
149	if (false !== $files && 2 === count($files)) {
150	@rmdir($wpo_folder);
151	}
152	// phpcs:enable
153	}
154
155	/**
156	* Deletes the .htaccess file in the uploads folder if it exists and is empty.
157	*
158	* @return void
159	*/
160	private static function delete_htaccess_file_in_uploads_folder(): void {
161	$htaccess_file = self::get_upload_basedir() . '.htaccess';
162	if (is_file($htaccess_file) && 0 === filesize($htaccess_file)) {
163	wp_delete_file($htaccess_file);
164	}
165	}
166
167	/**
168	* Delete known root-level files
169	*
170	* @return void
171	*/
172	private static function delete_wpo_root_files(): void {
173	$wpo_root_files = self::get_wpo_root_files();
174	$wpo_folder = self::get_wpo_folder();
175	foreach ($wpo_root_files as $file) {
176	wpo_delete_files($wpo_folder . $file, false);
177	}
178	}
179
180	/**
181	* Checks whether premium or free version of WPO plugin is active
182	*
183	* @return bool
184	*/
185	private static function is_plugin_active(): bool {
186	return WP_Optimize()->is_active('premium') \|\| WP_Optimize()->is_active();
187	}
188
189	/**
190	* Deletes premium cache data, if premium version of plugin is not active
191	*
192	* @return void
193	*/
194	private static function maybe_delete_premium_cache_data(): void {
195	if (!WP_Optimize()->is_active('premium')) {
196	self::delete_premium_cache_data();
197	}
198	}
199
200	/**
201	* Deactivates cron jobs
202	*
203	* @return void
204	*/
205	private static function cron_deactivate(): void {
206	wp_clear_scheduled_hook('process_smush_tasks');
207	WP_Optimize()->wpo_cron_deactivate();
208	}
209
210	/**
211	* Full path to `wpo` folder in uploads directory
212	*
213	* @return string
214	*/
215	private static function get_wpo_folder(): string {
216	return self::get_upload_basedir() . trailingslashit('wpo');
217	}
218	}
219
220	endif;
221