falcon / src / General.php

General.php in Falcon – Cache, Performance, Security, Cleanup, and Tweaks 2.9.2, at src/General.php

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1	<?php
2	namespace Falcon;
3
4	use WP_Query;
5
6	class General extends Base {
7	protected $features = [
8	'no_gutenberg',
9	'no_heartbeat',
10	'no_embeds',
11	'no_revisions',
12	'no_self_pings',
13	'no_privacy',
14	'no_cron',
15	'no_auto_updates',
16	'no_external_requests',
17	'no_comments',
18	'search_posts_only',
19	'no_comment_url',
20	'no_texturize',
21	'maintenance_mode',
22	];
23
24	public function no_gutenberg() {
25	// Disable Gutenberg on the back end.
26	add_filter( 'use_block_editor_for_post', '__return_false' );
27	add_filter( 'use_block_editor_for_post_type', '__return_false' );
28
29	// Disable Gutenberg for widgets.
30	add_filter( 'use_widgets_block_editor', '__return_false' );
31
32	add_action( 'wp_enqueue_scripts', [ $this, 'remove_gutenberg_assets' ], 20 );
33	}
34
35	public function remove_gutenberg_assets() {
36	// Remove CSS on the front end.
37	wp_dequeue_style( 'wp-block-library' );
38
39	// Remove Gutenberg theme.
40	wp_dequeue_style( 'wp-block-library-theme' );
41
42	// Remove inline global CSS on the front end.
43	wp_dequeue_style( 'global-styles' );
44
45	// Remove classic-themes CSS for backwards compatibility for button blocks.
46	wp_dequeue_style( 'classic-theme-styles' );
47	}
48
49	public function no_heartbeat() {
50	add_action( 'init', [ $this, 'remove_heartbeat_script' ], 1 );
51	}
52
53	public function remove_heartbeat_script() {
54	wp_deregister_script( 'heartbeat' );
55	}
56
57	public function no_embeds() {
58	// Remove the REST API endpoint.
59	remove_action( 'rest_api_init', 'wp_oembed_register_route' );
60
61	// Turn off oEmbed auto discovery.
62	add_filter( 'embed_oembed_discover', '__return_false' );
63
64	// Don't filter oEmbed results.
65	remove_filter( 'oembed_dataparse', 'wp_filter_oembed_result' );
66
67	// Remove oEmbed discovery links.
68	remove_action( 'wp_head', 'wp_oembed_add_discovery_links' );
69
70	// Remove oEmbed JavaScript from the front-end and back-end.
71	remove_action( 'wp_head', 'wp_oembed_add_host_js' );
72	}
73
74	public function no_revisions() {
75	add_filter( 'wp_revisions_to_keep', '__return_zero' );
76	}
77
78	public function no_self_pings() {
79	add_action( 'pre_ping', [ $this, 'remove_self_pings' ] );
80	}
81
82	public function no_privacy() {
83	add_action( 'admin_menu', [ $this, 'remove_menu' ] );
84	}
85
86	public function remove_menu() {
87	remove_submenu_page( 'options-general.php', 'options-privacy.php' );
88	remove_submenu_page( 'tools.php', 'export-personal-data.php' );
89	remove_submenu_page( 'tools.php', 'erase-personal-data.php' );
90	}
91
92	/**
93	* Remove pings to the website itself.
94	* @link http://wordpress.stackexchange.com/a/1852
95	*/
96	public function remove_self_pings( &$links ) {
97	$home_url = home_url();
98	$links = array_filter( $links, function ( $link ) use ( $home_url ) {
99	return false === strpos( $link, $home_url );
100	} );
101	}
102
103	public function no_cron(): void {
104	if ( ! defined( 'DISABLE_WP_CRON' ) ) {
105	define( 'DISABLE_WP_CRON', true );
106	}
107	}
108
109	public function no_auto_updates() {
110	add_filter( 'automatic_updater_disabled', '__return_true' );
111	}
112
113	public function no_external_requests() {
114	if ( ! defined( 'WP_HTTP_BLOCK_EXTERNAL' ) ) {
115	define( 'WP_HTTP_BLOCK_EXTERNAL', true );
116	}
117	}
118
119	public function no_comments() {
120	new Components\DisableComments;
121	}
122
123	public function search_posts_only(): void {
124	add_filter( 'pre_get_posts', function ( WP_Query $query ): void {
125	// Bypass Rest API & admin search.
126	if ( defined( 'REST_REQUEST' ) \|\| is_admin() ) {
127	return;
128	}
129	if ( $query->is_main_query() && $query->is_search() ) {
130	$query->set( 'post_type', 'post' );
131	}
132	} );
133	}
134
135	public function no_comment_url() {
136	add_filter( 'comment_form_default_fields', function ( array $fields ): array {
137	unset( $fields['url'] );
138	return $fields;
139	} );
140	}
141
142	public function no_texturize() {
143	add_filter( 'run_wptexturize', '__return_false' );
144	}
145
146	public function maintenance_mode(): void {
147	add_action( 'template_redirect', function () {
148	if ( ! current_user_can( 'manage_options' ) ) {
149	// Translators: %1$s - Header, %2$s - Message.
150	$html = sprintf(
151	'<h1>%1$s</h1><br>%2$s',
152	__( 'Maintenance mode', 'falcon' ),
153	__( 'The website is under maintenance, please come back later. Sorry for the inconvenience.', 'falcon' )
154	);
155	wp_die( wp_kses_post( $html ), esc_html__( 'Maintenance mode', 'falcon' ), 503 );
156	}
157	} );
158	}
159	}
160