wordpress-seo / admin / class-yoast-plugin-conflict.php

class-yoast-plugin-conflict.php in Yoast SEO – Advanced SEO with real-time guidance and built-in AI 27.6, at admin/class-yoast-plugin-conflict.php

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1	<?php
2	/**
3	* WPSEO plugin file.
4	*
5	* @package WPSEO\Admin
6	* @since 1.7.0
7	*/
8
9	/**
10	* Base class for handling plugin conflicts.
11	*/
12	class Yoast_Plugin_Conflict {
13
14	/**
15	* The plugins must be grouped per section.
16	*
17	* It's possible to check for each section if there are conflicting plugins.
18	*
19	* @var array
20	*/
21	protected $plugins = [];
22
23	/**
24	* All the current active plugins will be stored in this private var.
25	*
26	* @var array
27	*/
28	protected $all_active_plugins = [];
29
30	/**
31	* After searching for active plugins that are in $this->plugins the active plugins will be stored in this
32	* property.
33	*
34	* @var array
35	*/
36	protected $active_conflicting_plugins = [];
37
38	/**
39	* Property for holding instance of itself.
40	*
41	* @var Yoast_Plugin_Conflict
42	*/
43	protected static $instance;
44
45	/**
46	* For the use of singleton pattern. Create instance of itself and return this instance.
47	*
48	* @param string $class_name Give the classname to initialize. If classname is
49	* false (empty) it will use it's own __CLASS__.
50	*
51	* @return Yoast_Plugin_Conflict
52	*/
53	public static function get_instance( $class_name = '' ) {
54
55	if ( self::$instance === null ) {
56	if ( ! is_string( $class_name ) \|\| $class_name === '' ) {
57	$class_name = self::class;
58	}
59
60	self::$instance = new $class_name();
61	}
62
63	return self::$instance;
64	}
65
66	/**
67	* Setting instance, all active plugins and search for active plugins.
68	*
69	* Protected constructor to prevent creating a new instance of the
70	* Singleton via the `new` operator from outside this class.
71	*/
72	protected function __construct() {
73	// Set active plugins.
74	$this->all_active_plugins = get_option( 'active_plugins' );
75
76	// phpcs:ignore WordPress.Security.NonceVerification.Recommended -- Reason: We are not processing form information.
77	if ( isset( $_GET['action'] ) && is_string( $_GET['action'] ) ) {
78	// phpcs:ignore WordPress.Security.NonceVerification.Recommended,WordPress.Security.ValidatedSanitizedInput.InputNotSanitized -- Reason: We are not processing form information and only comparing the variable in a condition.
79	$action = wp_unslash( $_GET['action'] );
80	if ( $action === 'deactivate' ) {
81	$this->remove_deactivated_plugin();
82	}
83	}
84
85	// Search for active plugins.
86	$this->search_active_plugins();
87	}
88
89	/**
90	* Check if there are conflicting plugins for given $plugin_section.
91	*
92	* @param string $plugin_section Type of plugin conflict (such as Open Graph or sitemap).
93	*
94	* @return bool
95	*/
96	public function check_for_conflicts( $plugin_section ) {
97
98	static $sections_checked;
99
100	// Return early if there are no active conflicting plugins at all.
101	if ( empty( $this->active_conflicting_plugins ) ) {
102	return false;
103	}
104
105	$sections_checked ??= [];
106
107	if ( ! in_array( $plugin_section, $sections_checked, true ) ) {
108	$sections_checked[] = $plugin_section;
109	return ( ! empty( $this->active_conflicting_plugins[ $plugin_section ] ) );
110	}
111
112	return false;
113	}
114
115	/**
116	* Checks for given $plugin_sections for conflicts.
117	*
118	* @param array $plugin_sections Set of sections.
119	*
120	* @return void
121	*/
122	public function check_plugin_conflicts( $plugin_sections ) {
123	foreach ( $plugin_sections as $plugin_section => $readable_plugin_section ) {
124	// Check for conflicting plugins and show error if there are conflicts.
125	if ( $this->check_for_conflicts( $plugin_section ) ) {
126	$this->set_error( $plugin_section, $readable_plugin_section );
127	}
128	}
129
130	// List of all active sections.
131	$sections = array_keys( $plugin_sections );
132	// List of all sections.
133	$all_plugin_sections = array_keys( $this->plugins );
134
135	/*
136	* Get all sections that are inactive.
137	* These plugins need to be cleared.
138	*
139	* This happens when Sitemaps or OpenGraph implementations toggle active/disabled.
140	*/
141	$inactive_sections = array_diff( $all_plugin_sections, $sections );
142	if ( ! empty( $inactive_sections ) ) {
143	foreach ( $inactive_sections as $section ) {
144	array_walk( $this->plugins[ $section ], [ $this, 'clear_error' ] );
145	}
146	}
147
148	// For active sections clear errors for inactive plugins.
149	foreach ( $sections as $section ) {
150	// By default, clear errors for all plugins of the section.
151	$inactive_plugins = $this->plugins[ $section ];
152
153	// If there are active plugins, filter them from being cleared.
154	if ( isset( $this->active_conflicting_plugins[ $section ] ) ) {
155	$inactive_plugins = array_diff( $this->plugins[ $section ], $this->active_conflicting_plugins[ $section ] );
156	}
157
158	array_walk( $inactive_plugins, [ $this, 'clear_error' ] );
159	}
160	}
161
162	/**
163	* Setting an error on the screen.
164	*
165	* @param string $plugin_section Type of conflict group (such as Open Graph or sitemap).
166	* @param string $readable_plugin_section This is the value for the translation.
167	*
168	* @return void
169	*/
170	protected function set_error( $plugin_section, $readable_plugin_section ) {
171
172	$notification_center = Yoast_Notification_Center::get();
173
174	foreach ( $this->active_conflicting_plugins[ $plugin_section ] as $plugin_file ) {
175
176	$plugin_name = $this->get_plugin_name( $plugin_file );
177
178	$error_message = '';
179	/* translators: %1$s: 'Facebook & Open Graph' plugin name(s) of possibly conflicting plugin(s), %2$s to Yoast SEO */
180	$error_message .= '<p>' . sprintf( __( 'The %1$s plugin might cause issues when used in conjunction with %2$s.', 'wordpress-seo' ), '<em>' . $plugin_name . '</em>', 'Yoast SEO' ) . '</p>';
181	$error_message .= '<p>' . sprintf( $readable_plugin_section, 'Yoast SEO', $plugin_name ) . '</p>';
182
183	/* translators: %s: 'Facebook' plugin name of possibly conflicting plugin */
184	$error_message .= '<a class="button button-primary" href="' . wp_nonce_url( 'plugins.php?action=deactivate&plugin=' . $plugin_file . '&plugin_status=all', 'deactivate-plugin_' . $plugin_file ) . '">' . sprintf( __( 'Deactivate %s', 'wordpress-seo' ), $this->get_plugin_name( $plugin_file ) ) . '</a> ';
185
186	$identifier = $this->get_notification_identifier( $plugin_file );
187
188	// Add the message to the notifications center.
189	$notification_center->add_notification(
190	new Yoast_Notification(
191	$error_message,
192	[
193	'type' => Yoast_Notification::ERROR,
194	'id' => 'wpseo-conflict-' . $identifier,
195	],
196	),
197	);
198	}
199	}
200
201	/**
202	* Clear the notification for a plugin.
203	*
204	* @param string $plugin_file Clear the optional notification for this plugin.
205	*
206	* @return void
207	*/
208	public function clear_error( $plugin_file ) {
209	$identifier = $this->get_notification_identifier( $plugin_file );
210
211	$notification_center = Yoast_Notification_Center::get();
212	$notification_center->remove_notification_by_id( 'wpseo-conflict-' . $identifier );
213	}
214
215	/**
216	* Loop through the $this->plugins to check if one of the plugins is active.
217	*
218	* This method will store the active plugins in $this->active_plugins.
219	*
220	* @return void
221	*/
222	protected function search_active_plugins() {
223	foreach ( $this->plugins as $plugin_section => $plugins ) {
224	$this->check_plugins_active( $plugins, $plugin_section );
225	}
226	}
227
228	/**
229	* Loop through plugins and check if each plugin is active.
230	*
231	* @param array $plugins Set of plugins.
232	* @param string $plugin_section Type of conflict group (such as Open Graph or sitemap).
233	*
234	* @return void
235	*/
236	protected function check_plugins_active( $plugins, $plugin_section ) {
237	foreach ( $plugins as $plugin ) {
238	if ( $this->check_plugin_is_active( $plugin ) ) {
239	$this->add_active_plugin( $plugin_section, $plugin );
240	}
241	}
242	}
243
244	/**
245	* Check if given plugin exists in array with all_active_plugins.
246	*
247	* @param string $plugin Plugin basename string.
248	*
249	* @return bool
250	*/
251	protected function check_plugin_is_active( $plugin ) {
252	return in_array( $plugin, $this->all_active_plugins, true );
253	}
254
255	/**
256	* Add plugin to the list of active plugins.
257	*
258	* This method will check first if key $plugin_section exists, if not it will create an empty array
259	* If $plugin itself doesn't exist it will be added.
260	*
261	* @param string $plugin_section Type of conflict group (such as Open Graph or sitemap).
262	* @param string $plugin Plugin basename string.
263	*
264	* @return void
265	*/
266	protected function add_active_plugin( $plugin_section, $plugin ) {
267	if ( ! array_key_exists( $plugin_section, $this->active_conflicting_plugins ) ) {
268	$this->active_conflicting_plugins[ $plugin_section ] = [];
269	}
270
271	if ( ! in_array( $plugin, $this->active_conflicting_plugins[ $plugin_section ], true ) ) {
272	$this->active_conflicting_plugins[ $plugin_section ][] = $plugin;
273	}
274	}
275
276	/**
277	* Search in $this->plugins for the given $plugin.
278	*
279	* If there is a result it will return the plugin category.
280	*
281	* @param string $plugin Plugin basename string.
282	*
283	* @return int\|string
284	*/
285	protected function find_plugin_category( $plugin ) {
286	foreach ( $this->plugins as $plugin_section => $plugins ) {
287	if ( in_array( $plugin, $plugins, true ) ) {
288	return $plugin_section;
289	}
290	}
291	}
292
293	/**
294	* Get plugin name from file.
295	*
296	* @param string $plugin Plugin path relative to plugins directory.
297	*
298	* @return string\|bool Plugin name or false when no name is set.
299	*/
300	protected function get_plugin_name( $plugin ) {
301	$plugin_details = get_plugin_data( WP_PLUGIN_DIR . '/' . $plugin );
302
303	if ( $plugin_details['Name'] !== '' ) {
304	return $plugin_details['Name'];
305	}
306
307	return false;
308	}
309
310	/**
311	* When being in the deactivation process the currently deactivated plugin has to be removed.
312	*
313	* @return void
314	*/
315	private function remove_deactivated_plugin() {
316	// phpcs:ignore WordPress.Security.NonceVerification.Recommended -- Reason: On the deactivation screen the nonce is already checked by WordPress itself.
317	if ( ! isset( $_GET['plugin'] ) \|\| ! is_string( $_GET['plugin'] ) ) {
318	return;
319	}
320
321	// phpcs:ignore WordPress.Security.NonceVerification.Recommended -- Reason: On the deactivation screen the nonce is already checked by WordPress itself.
322	$deactivated_plugin = sanitize_text_field( wp_unslash( $_GET['plugin'] ) );
323	$key_to_remove = array_search( $deactivated_plugin, $this->all_active_plugins, true );
324
325	if ( $key_to_remove !== false ) {
326	unset( $this->all_active_plugins[ $key_to_remove ] );
327	}
328	}
329
330	/**
331	* Get the identifier from the plugin file.
332	*
333	* @param string $plugin_file Plugin file to get Identifier from.
334	*
335	* @return string
336	*/
337	private function get_notification_identifier( $plugin_file ) {
338	return md5( $plugin_file );
339	}
340	}
341