jetpack / modules / sharedaddy / sharedaddy.php

sharedaddy.php in Jetpack – WP Security, Backup, Speed, & Growth 14.9, at modules/sharedaddy/sharedaddy.php

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1	<?php
2	/**
3	* Jetpack's Sharing feature, nee Sharedaddy.
4	* The most super duper sharing tool on the interwebs.
5	*
6	* @package automattic/jetpack
7	*/
8
9	// Set up Sharing in wp-admin.
10	require_once plugin_dir_path( __FILE__ ) . 'sharing.php';
11
12	/**
13	* Add a meta box to the post editing screen for sharing.
14	*
15	* @return void
16	*/
17	function sharing_add_meta_box() {
18	global $post;
19	if ( empty( $post ) ) { // If a current post is not defined, such as when editing a comment.
20	return;
21	}
22
23	/**
24	* Filter whether to display the Sharing Meta Box or not.
25	*
26	* @module sharedaddy
27	*
28	* @since 3.8.0
29	*
30	* @param bool true Display Sharing Meta Box.
31	* @param $post Post.
32	*/
33	if ( ! apply_filters( 'sharing_meta_box_show', true, $post ) ) {
34	return;
35	}
36
37	$post_types = get_post_types( array( 'public' => true ) );
38	/**
39	* Filter the Sharing Meta Box title.
40	*
41	* @module sharedaddy
42	*
43	* @since 2.2.0
44	*
45	* @param string $var Sharing Meta Box title. Default is "Sharing".
46	*/
47	$title = apply_filters( 'sharing_meta_box_title', __( 'Sharing', 'jetpack' ) );
48	if ( $post->ID !== get_option( 'page_for_posts' ) ) {
49	foreach ( $post_types as $post_type ) {
50	add_meta_box( 'sharing_meta', $title, 'sharing_meta_box_content', $post_type, 'side', 'default', array( '__back_compat_meta_box' => true ) );
51	}
52	}
53	}
54
55	/**
56	* Content of the meta box.
57	*
58	* @param WP_Post $post The post to share.
59	*
60	* @return void
61	*/
62	function sharing_meta_box_content( $post ) {
63	/**
64	* Fires before the sharing meta box content.
65	*
66	* @module sharedaddy
67	*
68	* @since 2.2.0
69	*
70	* @param WP_Post $post The post to share.
71	*/
72	do_action( 'start_sharing_meta_box_content', $post );
73
74	$disabled = get_post_meta( $post->ID, 'sharing_disabled', true ); ?>
75
76	<p>
77	<label for="enable_post_sharing">
78	<input type="checkbox" name="enable_post_sharing" id="enable_post_sharing" value="1" <?php checked( ! $disabled ); ?>>
79	<?php esc_html_e( 'Show sharing buttons.', 'jetpack' ); ?>
80	</label>
81	<input type="hidden" name="sharing_status_hidden" value="1" />
82	</p>
83
84	<?php
85	/**
86	* Fires after the sharing meta box content.
87	*
88	* @module sharedaddy
89	*
90	* @since 2.2.0
91	*
92	* @param WP_Post $post The post to share.
93	*/
94	do_action( 'end_sharing_meta_box_content', $post );
95	}
96
97	/**
98	* Save new sharing status in post meta in the meta box.
99	*
100	* @param int $post_id Post ID.
101	*
102	* @return int
103	*/
104	function sharing_meta_box_save( $post_id ) {
105	if ( defined( 'DOING_AUTOSAVE' ) && DOING_AUTOSAVE ) {
106	return $post_id;
107	}
108
109	if ( ! isset( $_POST['post_type'] ) ) { // phpcs:ignore WordPress.Security.NonceVerification.Missing -- Core takes care of the validation.
110	return $post_id;
111	}
112
113	$post_type_object = get_post_type_object( sanitize_key( $_POST['post_type'] ) ); // phpcs:ignore WordPress.Security.NonceVerification.Missing -- Core takes care of the validation.
114
115	// Record sharing disable.
116	if (
117	$post_type_object->public
118	&& current_user_can( 'edit_post', $post_id )
119	&& isset( $_POST['sharing_status_hidden'] ) // phpcs:ignore WordPress.Security.NonceVerification.Missing -- Core takes care of the validation.
120	) {
121	if ( ! isset( $_POST['enable_post_sharing'] ) ) { // phpcs:ignore WordPress.Security.NonceVerification.Missing -- Core takes care of the validation.
122	update_post_meta( $post_id, 'sharing_disabled', 1 );
123	} else {
124	delete_post_meta( $post_id, 'sharing_disabled' );
125	}
126	}
127
128	return $post_id;
129	}
130
131	/**
132	* If Sharing is disabled, disable the meta box.
133	*
134	* @param bool $protected Whether the key is considered protected.
135	* @param string $meta_key Metadata key.
136	*
137	* @return bool
138	*/
139	function sharing_meta_box_protected( $protected, $meta_key ) {
140	if ( 'sharing_disabled' === $meta_key ) {
141	$protected = true;
142	}
143
144	return $protected;
145	}
146	add_filter( 'is_protected_meta', 'sharing_meta_box_protected', 10, 2 );
147
148	/**
149	* Add link to sharing settings in the Plugins screen.
150	*
151	* @param array $links An array of plugin action links.
152	*
153	* @return array
154	*/
155	function sharing_plugin_settings( $links ) {
156	$settings_link = '<a href="options-general.php?page=sharing.php">' . __( 'Settings', 'jetpack' ) . '</a>';
157	array_unshift( $links, $settings_link );
158	return $links;
159	}
160
161	/**
162	* Add links to settings and support in the plugin row.
163	*
164	* @param array $links An array of the plugin's metadata, including the version, author, author URI, and plugin URI.
165	* @param string $file Path to the plugin file relative to the plugins directory.
166	*
167	* @return array
168	*/
169	function sharing_add_plugin_settings( $links, $file ) {
170	if ( $file === basename( __DIR__ ) . '/' . basename( __FILE__ ) ) {
171	$links[] = '<a href="options-general.php?page=sharing.php">' . __( 'Settings', 'jetpack' ) . '</a>';
172	$links[] = '<a href="https://support.wordpress.com/sharing/" rel="noopener noreferrer" target="_blank">' . __( 'Support', 'jetpack' ) . '</a>';
173	}
174
175	return $links;
176	}
177
178	/**
179	* Disable sharing on the frontend if disabled in the admin.
180	*
181	* @return void
182	*/
183	function sharing_init() {
184	if ( Jetpack_Options::get_option_and_ensure_autoload( 'sharedaddy_disable_resources', '0' ) ) {
185	add_filter( 'sharing_js', '__return_false' );
186	remove_action( 'wp_head', 'sharing_add_header', 1 );
187	}
188	}
189
190	/**
191	* Add settings to disable CSS and JS normally enqueued by our feature.
192	*
193	* @return void
194	*/
195	function sharing_global_resources() {
196	$disable = get_option( 'sharedaddy_disable_resources' );
197	?>
198	<tr valign="top">
199	<th scope="row"><label for="disable_css"><?php esc_html_e( 'Disable CSS and JS', 'jetpack' ); ?></label></th>
200	<td>
201	<?php
202	printf(
203	'<input id="disable_css" type="checkbox" name="disable_resources"%1$s /> <small><em>%2$s</em></small>',
204	( 1 == $disable ) ? ' checked="checked"' : '', // phpcs:ignore Universal.Operators.StrictComparisons.LooseEqual
205	esc_html__( 'Advanced. If this option is checked, you must include these files in your theme manually for the sharing links to work.', 'jetpack' )
206	);
207	?>
208	</td>
209	</tr>
210	<?php
211	}
212
213	/**
214	* Save settings to disable CSS and JS normally enqueued by our feature.
215	*
216	* @return void
217	*/
218	function sharing_global_resources_save() {
219	update_option( 'sharedaddy_disable_resources', isset( $_POST['disable_resources'] ) ? 1 : 0 ); // phpcs:ignore WordPress.Security.NonceVerification.Missing -- nonce handling is handled for all elements at once.
220	}
221
222	add_action( 'init', 'sharing_init' );
223	add_action( 'add_meta_boxes', 'sharing_add_meta_box' );
224	add_action( 'save_post', 'sharing_meta_box_save' );
225	add_action( 'edit_attachment', 'sharing_meta_box_save' );
226	add_action( 'sharing_global_options', 'sharing_global_resources', 30 );
227	add_action( 'sharing_admin_update', 'sharing_global_resources_save' );
228	add_action( 'plugin_action_links_' . basename( __DIR__ ) . '/' . basename( __FILE__ ), 'sharing_plugin_settings', 10, 4 );
229	add_filter( 'plugin_row_meta', 'sharing_add_plugin_settings', 10, 2 );
230