jetpack / modules / sharedaddy / sharedaddy.php

sharedaddy.php in Jetpack – WP Security, Backup, Speed, & Growth 15.3, 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	if ( ! defined( 'ABSPATH' ) ) {
10	exit( 0 );
11	}
12
13	// Set up Sharing in wp-admin.
14	require_once plugin_dir_path( __FILE__ ) . 'sharing.php';
15
16	/**
17	* Add a meta box to the post editing screen for sharing.
18	*
19	* @return void
20	*/
21	function sharing_add_meta_box() {
22	global $post;
23	if ( empty( $post ) ) { // If a current post is not defined, such as when editing a comment.
24	return;
25	}
26
27	/**
28	* Filter whether to display the Sharing Meta Box or not.
29	*
30	* @module sharedaddy
31	*
32	* @since 3.8.0
33	*
34	* @param bool true Display Sharing Meta Box.
35	* @param $post Post.
36	*/
37	if ( ! apply_filters( 'sharing_meta_box_show', true, $post ) ) {
38	return;
39	}
40
41	$post_types = get_post_types( array( 'public' => true ) );
42	/**
43	* Filter the Sharing Meta Box title.
44	*
45	* @module sharedaddy
46	*
47	* @since 2.2.0
48	*
49	* @param string $var Sharing Meta Box title. Default is "Sharing".
50	*/
51	$title = apply_filters( 'sharing_meta_box_title', __( 'Sharing', 'jetpack' ) );
52	if ( $post->ID !== get_option( 'page_for_posts' ) ) {
53	foreach ( $post_types as $post_type ) {
54	add_meta_box( 'sharing_meta', $title, 'sharing_meta_box_content', $post_type, 'side', 'default', array( '__back_compat_meta_box' => true ) );
55	}
56	}
57	}
58
59	/**
60	* Content of the meta box.
61	*
62	* @param WP_Post $post The post to share.
63	*
64	* @return void
65	*/
66	function sharing_meta_box_content( $post ) {
67	/**
68	* Fires before the sharing meta box content.
69	*
70	* @module sharedaddy
71	*
72	* @since 2.2.0
73	*
74	* @param WP_Post $post The post to share.
75	*/
76	do_action( 'start_sharing_meta_box_content', $post );
77
78	$disabled = get_post_meta( $post->ID, 'sharing_disabled', true ); ?>
79
80	<p>
81	<label for="enable_post_sharing">
82	<input type="checkbox" name="enable_post_sharing" id="enable_post_sharing" value="1" <?php checked( ! $disabled ); ?>>
83	<?php esc_html_e( 'Show sharing buttons.', 'jetpack' ); ?>
84	</label>
85	<input type="hidden" name="sharing_status_hidden" value="1" />
86	</p>
87
88	<?php
89	/**
90	* Fires after the sharing meta box content.
91	*
92	* @module sharedaddy
93	*
94	* @since 2.2.0
95	*
96	* @param WP_Post $post The post to share.
97	*/
98	do_action( 'end_sharing_meta_box_content', $post );
99	}
100
101	/**
102	* Save new sharing status in post meta in the meta box.
103	*
104	* @param int $post_id Post ID.
105	*
106	* @return int
107	*/
108	function sharing_meta_box_save( $post_id ) {
109	if ( defined( 'DOING_AUTOSAVE' ) && DOING_AUTOSAVE ) {
110	return $post_id;
111	}
112
113	if ( ! isset( $_POST['post_type'] ) ) { // phpcs:ignore WordPress.Security.NonceVerification.Missing -- Core takes care of the validation.
114	return $post_id;
115	}
116
117	$post_type_object = get_post_type_object( sanitize_key( $_POST['post_type'] ) ); // phpcs:ignore WordPress.Security.NonceVerification.Missing -- Core takes care of the validation.
118
119	// Record sharing disable.
120	if (
121	$post_type_object instanceof \WP_Post_Type
122	&& $post_type_object->public
123	&& current_user_can( 'edit_post', $post_id )
124	&& isset( $_POST['sharing_status_hidden'] ) // phpcs:ignore WordPress.Security.NonceVerification.Missing -- Core takes care of the validation.
125	) {
126	if ( ! isset( $_POST['enable_post_sharing'] ) ) { // phpcs:ignore WordPress.Security.NonceVerification.Missing -- Core takes care of the validation.
127	update_post_meta( $post_id, 'sharing_disabled', 1 );
128	} else {
129	delete_post_meta( $post_id, 'sharing_disabled' );
130	}
131	}
132
133	return $post_id;
134	}
135
136	/**
137	* If Sharing is disabled, disable the meta box.
138	*
139	* @param bool $protected Whether the key is considered protected.
140	* @param string $meta_key Metadata key.
141	*
142	* @return bool
143	*/
144	function sharing_meta_box_protected( $protected, $meta_key ) {
145	if ( 'sharing_disabled' === $meta_key ) {
146	$protected = true;
147	}
148
149	return $protected;
150	}
151	add_filter( 'is_protected_meta', 'sharing_meta_box_protected', 10, 2 );
152
153	/**
154	* Add link to sharing settings in the Plugins screen.
155	*
156	* @param array $links An array of plugin action links.
157	*
158	* @return array
159	*/
160	function sharing_plugin_settings( $links ) {
161	$settings_link = '<a href="options-general.php?page=sharing.php">' . __( 'Settings', 'jetpack' ) . '</a>';
162	array_unshift( $links, $settings_link );
163	return $links;
164	}
165
166	/**
167	* Add links to settings and support in the plugin row.
168	*
169	* @param array $links An array of the plugin's metadata, including the version, author, author URI, and plugin URI.
170	* @param string $file Path to the plugin file relative to the plugins directory.
171	*
172	* @return array
173	*/
174	function sharing_add_plugin_settings( $links, $file ) {
175	if ( $file === basename( __DIR__ ) . '/' . basename( __FILE__ ) ) {
176	$links[] = '<a href="options-general.php?page=sharing.php">' . __( 'Settings', 'jetpack' ) . '</a>';
177	$links[] = '<a href="https://support.wordpress.com/sharing/" rel="noopener noreferrer" target="_blank">' . __( 'Support', 'jetpack' ) . '</a>';
178	}
179
180	return $links;
181	}
182
183	/**
184	* Disable sharing on the frontend if disabled in the admin.
185	*
186	* @return void
187	*/
188	function sharing_init() {
189	if ( Jetpack_Options::get_option_and_ensure_autoload( 'sharedaddy_disable_resources', '0' ) ) {
190	add_filter( 'sharing_js', '__return_false' );
191	remove_action( 'wp_head', 'sharing_add_header', 1 );
192	}
193	}
194
195	/**
196	* Add settings to disable CSS and JS normally enqueued by our feature.
197	*
198	* @return void
199	*/
200	function sharing_global_resources() {
201	$disable = get_option( 'sharedaddy_disable_resources' );
202	?>
203	<tr valign="top">
204	<th scope="row"><label for="disable_css"><?php esc_html_e( 'Disable CSS and JS', 'jetpack' ); ?></label></th>
205	<td>
206	<?php
207	printf(
208	'<input id="disable_css" type="checkbox" name="disable_resources"%1$s /> <small><em>%2$s</em></small>',
209	( 1 == $disable ) ? ' checked="checked"' : '', // phpcs:ignore Universal.Operators.StrictComparisons.LooseEqual
210	esc_html__( 'Advanced. If this option is checked, you must include these files in your theme manually for the sharing links to work.', 'jetpack' )
211	);
212	?>
213	</td>
214	</tr>
215	<?php
216	}
217
218	/**
219	* Save settings to disable CSS and JS normally enqueued by our feature.
220	*
221	* @return void
222	*/
223	function sharing_global_resources_save() {
224	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.
225	}
226
227	add_action( 'init', 'sharing_init' );
228	add_action( 'add_meta_boxes', 'sharing_add_meta_box' );
229	add_action( 'save_post', 'sharing_meta_box_save' );
230	add_action( 'edit_attachment', 'sharing_meta_box_save' );
231	add_action( 'sharing_global_options', 'sharing_global_resources', 30 );
232	add_action( 'sharing_admin_update', 'sharing_global_resources_save' );
233	add_action( 'plugin_action_links_' . basename( __DIR__ ) . '/' . basename( __FILE__ ), 'sharing_plugin_settings', 10, 4 );
234	add_filter( 'plugin_row_meta', 'sharing_add_plugin_settings', 10, 2 );
235