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Jetpack – WP Security, Backup, Speed, & Growth / 6.2.1
Jetpack – WP Security, Backup, Speed, & Growth v6.2.1
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jetpack / modules / likes.php

likes.php in Jetpack – WP Security, Backup, Speed, & Growth 6.2.1, at modules/likes.php

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1 <?php
2 /**
3 * Module Name: Likes
4 * Module Description: Give visitors an easy way to show they appreciate your content.
5 * First Introduced: 2.2
6 * Sort Order: 23
7 * Requires Connection: Yes
8 * Auto Activate: No
9 * Module Tags: Social
10 * Feature: Engagement
11 * Additional Search Queries: like, likes, wordpress.com
12 */
13
14 Jetpack::dns_prefetch( array(
15 '//widgets.wp.com',
16 '//s0.wp.com',
17 '//0.gravatar.com',
18 '//1.gravatar.com',
19 '//2.gravatar.com',
20 ) );
21
22 include_once dirname( __FILE__ ) . '/likes/jetpack-likes-master-iframe.php';
23 include_once dirname( __FILE__ ) . '/likes/jetpack-likes-settings.php';
24
25 class Jetpack_Likes {
26 public static function init() {
27 static $instance = NULL;
28
29 if ( ! $instance ) {
30 $instance = new Jetpack_Likes;
31 }
32
33 return $instance;
34 }
35
36 function __construct() {
37 $this->in_jetpack = ( defined( 'IS_WPCOM' ) && IS_WPCOM ) ? false : true;
38 $this->settings = new Jetpack_Likes_Settings();
39
40 add_action( 'init', array( &$this, 'action_init' ) );
41 add_action( 'admin_init', array( $this, 'admin_init' ) );
42
43 if ( $this->in_jetpack ) {
44 add_action( 'jetpack_activate_module_likes', array( $this, 'set_social_notifications_like' ) );
45 add_action( 'jetpack_deactivate_module_likes', array( $this, 'delete_social_notifications_like' ) );
46
47 Jetpack::enable_module_configurable( __FILE__ );
48 Jetpack::module_configuration_load( __FILE__, array( $this, 'configuration_redirect' ) );
49
50 add_action( 'admin_print_scripts-settings_page_sharing', array( &$this, 'load_jp_css' ) );
51 add_filter( 'sharing_show_buttons_on_row_start', array( $this, 'configuration_target_area' ) );
52
53 $active = Jetpack::get_active_modules();
54
55 if ( ! in_array( 'sharedaddy', $active ) && ! in_array( 'publicize', $active ) ) {
56 // we don't have a sharing page yet
57 add_action( 'admin_menu', array( $this->settings, 'sharing_menu' ) );
58 }
59
60 if ( in_array( 'publicize', $active ) && ! in_array( 'sharedaddy', $active ) ) {
61 // we have a sharing page but not the global options area
62 add_action( 'pre_admin_screen_sharing', array( $this->settings, 'sharing_block' ), 20 );
63 add_action( 'pre_admin_screen_sharing', array( $this->settings, 'updated_message' ), -10 );
64 }
65
66 if( ! in_array( 'sharedaddy', $active ) ) {
67 add_action( 'admin_init', array( $this->settings, 'process_update_requests_if_sharedaddy_not_loaded' ) );
68 add_action( 'sharing_global_options', array( $this->settings, 'admin_settings_showbuttonon_init' ), 19 );
69 add_action( 'sharing_admin_update', array( $this->settings, 'admin_settings_showbuttonon_callback' ), 19 );
70 add_action( 'admin_init', array( $this->settings, 'add_meta_box' ) );
71 } else {
72 add_filter( 'sharing_meta_box_title', array( $this->settings, 'add_likes_to_sharing_meta_box_title' ) );
73 add_action( 'start_sharing_meta_box_content', array( $this->settings, 'meta_box_content' ) );
74 }
75 } else { // wpcom
76 add_action( 'wpmu_new_blog', array( $this, 'enable_comment_likes' ), 10, 1 );
77 add_action( 'admin_init', array( $this->settings, 'add_meta_box' ) );
78 add_action( 'end_likes_meta_box_content', array( $this->settings, 'sharing_meta_box_content' ) );
79 add_filter( 'likes_meta_box_title', array( $this->settings, 'add_likes_to_sharing_meta_box_title' ) );
80 }
81
82 add_action( 'admin_init', array( $this, 'admin_discussion_likes_settings_init' ) ); // Likes notifications
83
84 add_action( 'admin_bar_menu', array( $this, 'admin_bar_likes' ), 60 );
85
86 add_action( 'wp_enqueue_scripts', array( $this, 'load_styles_register_scripts' ) );
87
88 add_action( 'save_post', array( $this->settings, 'meta_box_save' ) );
89 add_action( 'edit_attachment', array( $this->settings, 'meta_box_save' ) );
90 add_action( 'sharing_global_options', array( $this->settings, 'admin_settings_init' ), 20 );
91 add_action( 'sharing_admin_update', array( $this->settings, 'admin_settings_callback' ), 20 );
92 }
93
94 /**
95 * Set the social_notifications_like option to `on` when the Likes module is activated.
96 *
97 * @since 3.7.0
98 *
99 * @return null
100 */
101 function set_social_notifications_like() {
102 update_option( 'social_notifications_like', 'on' );
103 }
104
105 /**
106 * Delete the social_notifications_like option that was set to `on` on module activation.
107 *
108 * @since 3.7.0
109 *
110 * @return null
111 */
112 function delete_social_notifications_like() {
113 delete_option( 'social_notifications_like' );
114 }
115
116 /**
117 * Redirects to the likes section of the sharing page.
118 */
119 function configuration_redirect() {
120 wp_safe_redirect( admin_url( 'options-general.php?page=sharing#likes' ) );
121 die();
122 }
123
124 /**
125 * Loads Jetpack's CSS on the sharing page so we can use .jetpack-targetable
126 */
127 function load_jp_css() {
128 // Do we really need `admin_styles`? With the new admin UI, it's breaking some bits.
129 // Jetpack::init()->admin_styles();
130 }
131
132 /**
133 * Load scripts and styles for front end.
134 * @return null
135 */
136 function load_styles_register_scripts() {
137 if ( $this->in_jetpack ) {
138 wp_enqueue_style( 'jetpack_likes', plugins_url( 'likes/style.css', __FILE__ ), array(), JETPACK__VERSION );
139 $this->register_scripts();
140 }
141 }
142
143
144 /**
145 * Stub for is_post_likeable, since some wpcom functions call this directly on the class
146 * Are likes enabled for this post?
147 *
148 * @param int $post_id
149 * @return bool
150 */
151 static function is_post_likeable( $post_id = 0 ) {
152 _deprecated_function( __METHOD__, 'jetpack-5.4', 'Jetpack_Likes_Settings()->is_post_likeable' );
153 $settings = new Jetpack_Likes_Settings();
154 return $settings->is_post_likeable();
155 }
156
157 /**
158 * Stub for is_likes_visible, since some themes were calling it directly from this class
159 *
160 * @deprecated 5.4
161 * @return bool
162 */
163 function is_likes_visible() {
164 _deprecated_function( __METHOD__, 'jetpack-5.4', 'Jetpack_Likes_Settings()->is_likes_visible' );
165
166 $settings = new Jetpack_Likes_Settings();
167 return $settings->is_likes_visible();
168 }
169
170 /**
171 * Adds in the jetpack-targetable class so when we visit sharing#likes our like settings get highlighted by a yellow box
172 * @param string $html row heading for the sharedaddy "which page" setting
173 * @return string html with the jetpack-targetable class and likes id. tbody gets closed after the like settings
174 */
175 function configuration_target_area( $html = '' ) {
176 $html = "<tbody id='likes' class='jetpack-targetable'>" . $html;
177 return $html;
178 }
179
180 /**
181 * Options to be added to the discussion page (see also admin_settings_init, etc below for Sharing settings page)
182 */
183
184 function admin_discussion_likes_settings_init() {
185 // Add a temporary section, until we can move the setting out of there and with the rest of the email notification settings
186 add_settings_section( 'likes-notifications', __( 'Likes Notifications', 'jetpack' ), array( $this, 'admin_discussion_likes_settings_section' ), 'discussion' );
187 add_settings_field( 'social-notifications', __( 'Email me whenever', 'jetpack' ), array( $this, 'admin_discussion_likes_settings_field' ), 'discussion', 'likes-notifications' );
188 // Register the setting
189 register_setting( 'discussion', 'social_notifications_like', array( $this, 'admin_discussion_likes_settings_validate' ) );
190 }
191
192 function admin_discussion_likes_settings_section() {
193 // Atypical usage here. We emit jquery to move likes notification checkbox to be with the rest of the email notification settings
194 ?>
195 <script type="text/javascript">
196 jQuery( function( $ ) {
197 var table = $( '#social_notifications_like' ).parents( 'table:first' ),
198 header = table.prevAll( 'h2:first' ),
199 newParent = $( '#moderation_notify' ).parent( 'label' ).parent();
200
201 if ( !table.length || !header.length || !newParent.length ) {
202 return;
203 }
204
205 newParent.append( '<br/>' ).append( table.end().parent( 'label' ).siblings().andSelf() );
206 header.remove();
207 table.remove();
208 } );
209 </script>
210 <?php
211 }
212
213 function admin_likes_get_option( $option ) {
214 if ( defined( 'IS_WPCOM' ) && IS_WPCOM ) {
215 $option_setting = get_blog_option( get_current_blog_id(), $option, 'on' );
216 } else {
217 $option_setting = get_option( $option, 'on' );
218 }
219
220 return intval( 'on' == $option_setting );
221 }
222
223 function admin_discussion_likes_settings_field() {
224 $like = $this->admin_likes_get_option( 'social_notifications_like' );
225 ?>
226 <label><input type="checkbox" id="social_notifications_like" name="social_notifications_like" value="1" <?php checked( $like ); ?> /> <?php esc_html_e( 'Someone likes one of my posts', 'jetpack' ); ?></label>
227 <?php
228 }
229
230 function admin_discussion_likes_settings_validate( $input ) {
231 // If it's not set (was unchecked during form submission) or was set to off (during option update), return 'off'.
232 if ( !$input || 'off' == $input )
233 return 'off';
234
235 // Otherwise, return 'on'.
236 return 'on';
237 }
238
239 function admin_init() {
240 add_filter( 'manage_posts_columns', array( $this, 'add_like_count_column' ) );
241 add_filter( 'manage_pages_columns', array( $this, 'add_like_count_column' ) );
242 add_action( 'manage_posts_custom_column', array( $this, 'likes_edit_column' ), 10, 2 );
243 add_action( 'manage_pages_custom_column', array( $this, 'likes_edit_column' ), 10, 2 );
244 add_action( 'admin_print_styles-edit.php', array( $this, 'load_admin_css' ) );
245 add_action( "admin_print_scripts-edit.php", array( $this, 'enqueue_admin_scripts' ) );
246 }
247
248 function action_init() {
249 if ( is_admin() ) {
250 return;
251 }
252
253 if ( ( defined( 'XMLRPC_REQUEST' ) && XMLRPC_REQUEST ) ||
254 ( defined( 'APP_REQUEST' ) && APP_REQUEST ) ||
255 ( defined( 'REST_API_REQUEST' ) && REST_API_REQUEST ) ||
256 ( defined( 'COOKIE_AUTH_REQUEST' ) && COOKIE_AUTH_REQUEST ) ||
257 ( defined( 'JABBER_SERVER' ) && JABBER_SERVER ) ) {
258 return;
259 }
260
261 if ( Jetpack_AMP_Support::is_amp_request() ) {
262 return;
263 }
264
265 if ( $this->in_jetpack ) {
266 add_filter( 'the_content', array( &$this, 'post_likes' ), 30, 1 );
267 add_filter( 'the_excerpt', array( &$this, 'post_likes' ), 30, 1 );
268
269 } else {
270 add_filter( 'post_flair', array( &$this, 'post_likes' ), 30, 1 );
271 add_filter( 'post_flair_block_css', array( $this, 'post_flair_service_enabled_like' ) );
272
273 wp_enqueue_script( 'postmessage', '/wp-content/js/postmessage.js', array( 'jquery' ), JETPACK__VERSION, false );
274 wp_enqueue_script( 'jetpack_resize', '/wp-content/js/jquery/jquery.jetpack-resize.js', array( 'jquery' ), JETPACK__VERSION, false );
275 wp_enqueue_script( 'jetpack_likes_queuehandler', plugins_url( 'queuehandler.js' , __FILE__ ), array( 'jquery', 'postmessage', 'jetpack_resize' ), JETPACK__VERSION, true );
276 wp_enqueue_style( 'jetpack_likes', plugins_url( 'jetpack-likes.css', __FILE__ ), array(), JETPACK__VERSION );
277 }
278 }
279
280 /**
281 * Register scripts
282 */
283 function register_scripts() {
284 wp_register_script(
285 'postmessage',
286 Jetpack::get_file_url_for_environment( '_inc/build/postmessage.min.js', '_inc/postmessage.js' ),
287 array( 'jquery' ),
288 JETPACK__VERSION,
289 false
290 );
291 wp_register_script(
292 'jetpack_resize',
293 Jetpack::get_file_url_for_environment(
294 '_inc/build/jquery.jetpack-resize.min.js',
295 '_inc/jquery.jetpack-resize.js'
296 ),
297 array( 'jquery' ),
298 JETPACK__VERSION,
299 false
300 );
301 wp_register_script(
302 'jetpack_likes_queuehandler',
303 Jetpack::get_file_url_for_environment(
304 '_inc/build/likes/queuehandler.min.js',
305 'modules/likes/queuehandler.js'
306 ),
307 array( 'jquery', 'postmessage', 'jetpack_resize' ),
308 JETPACK__VERSION,
309 true
310 );
311 }
312
313 /**
314 * Load the CSS needed for the wp-admin area.
315 */
316 function load_admin_css() {
317 ?>
318 <style type="text/css">
319 .vers img { display: none; }
320 .metabox-prefs .vers img { display: inline; }
321 .fixed .column-likes { width: 5.5em; padding: 8px 0; text-align: left; }
322 .fixed .column-stats { width: 5em; }
323 .fixed .column-likes .post-com-count {
324 -webkit-box-sizing: border-box;
325 -moz-box-sizing: border-box;
326 box-sizing: border-box;
327 display: inline-block;
328 padding: 0 8px;
329 height: 2em;
330 margin-top: 5px;
331 -webkit-border-radius: 5px;
332 border-radius: 5px;
333 background-color: #72777C;
334 color: #FFF;
335 font-size: 11px;
336 line-height: 21px;
337 }
338 .fixed .column-likes .post-com-count::after { border: none !important; }
339 .fixed .column-likes .post-com-count:hover { background-color: #0073AA; }
340 .fixed .column-likes .vers:before {
341 font: normal 20px/1 dashicons;
342 content: '\f155';
343 speak: none;
344 -webkit-font-smoothing: antialiased;
345 -moz-osx-font-smoothing: grayscale;
346 }
347 @media screen and (max-width: 782px) {
348 .fixed .column-likes {
349 display: none;
350 }
351 }
352 </style>
353 <?php
354 }
355
356 /**
357 * Load the JS required for loading the like counts.
358 */
359 function enqueue_admin_scripts() {
360 if ( empty( $_GET['post_type'] ) || 'post' == $_GET['post_type'] || 'page' == $_GET['post_type'] ) {
361 if ( $this->in_jetpack ) {
362 wp_enqueue_script(
363 'likes-post-count',
364 Jetpack::get_file_url_for_environment(
365 '_inc/build/likes/post-count.min.js',
366 'modules/likes/post-count.js'
367 ),
368 array( 'jquery' ),
369 JETPACK__VERSION
370 );
371 wp_enqueue_script(
372 'likes-post-count-jetpack',
373 Jetpack::get_file_url_for_environment(
374 '_inc/build/likes/post-count-jetpack.min.js',
375 'modules/likes/post-count-jetpack.js'
376 ),
377 array( 'likes-post-count' ),
378 JETPACK__VERSION
379 );
380 } else {
381 wp_enqueue_script( 'jquery.wpcom-proxy-request', "/wp-content/js/jquery/jquery.wpcom-proxy-request.js", array('jquery'), NULL, true );
382 wp_enqueue_script( 'likes-post-count', plugins_url( 'likes/post-count.js', dirname( __FILE__ ) ), array( 'jquery' ), JETPACK__VERSION );
383 wp_enqueue_script( 'likes-post-count-wpcom', plugins_url( 'likes/post-count-wpcom.js', dirname( __FILE__ ) ), array( 'likes-post-count', 'jquery.wpcom-proxy-request' ), JETPACK__VERSION );
384 }
385 }
386 }
387
388 /**
389 * Add "Likes" column data to the post edit table in wp-admin.
390 *
391 * @param string $column_name
392 * @param int $post_id
393 */
394 function likes_edit_column( $column_name, $post_id ) {
395 if ( 'likes' == $column_name ) {
396
397 if ( defined( 'IS_WPCOM' ) && IS_WPCOM ) {
398 $blog_id = get_current_blog_id();
399 } else {
400 $blog_id = Jetpack_Options::get_option( 'id' );
401 }
402
403 $permalink = get_permalink( get_the_ID() ); ?>
404 <a title="" data-post-id="<?php echo (int) $post_id; ?>" class="post-com-count post-like-count" id="post-like-count-<?php echo (int) $post_id; ?>" data-blog-id="<?php echo (int) $blog_id; ?>" href="<?php echo esc_url( $permalink ); ?>#like-<?php echo (int) $post_id; ?>">
405 <span class="comment-count">0</span>
406 </a>
407 <?php
408 }
409 }
410
411 /**
412 * Add a "Likes" column header to the post edit table in wp-admin.
413 *
414 * @param array $columns
415 * @return array
416 */
417 function add_like_count_column( $columns ) {
418 $date = $columns['date'];
419 unset( $columns['date'] );
420
421 $columns['likes'] = '<span class="vers"><img title="' . esc_attr__( 'Likes', 'jetpack' ) . '" alt="' . esc_attr__( 'Likes', 'jetpack' ) . '" src="//s0.wordpress.com/i/like-grey-icon.png" /></span>';
422 $columns['date'] = $date;
423
424 return $columns;
425 }
426
427 function post_likes( $content ) {
428 $post_id = get_the_ID();
429
430 if ( ! is_numeric( $post_id ) || ! $this->settings->is_likes_visible() )
431 return $content;
432
433 if ( defined( 'IS_WPCOM' ) && IS_WPCOM ) {
434 $blog_id = get_current_blog_id();
435 $bloginfo = get_blog_details( (int) $blog_id );
436 $domain = $bloginfo->domain;
437 } else {
438 $blog_id = Jetpack_Options::get_option( 'id' );
439 $url = home_url();
440 $url_parts = parse_url( $url );
441 $domain = $url_parts['host'];
442 }
443 // make sure to include the scripts before the iframe otherwise weird things happen
444 add_action( 'wp_footer', 'jetpack_likes_master_iframe', 21 );
445
446 /**
447 * if the same post appears more then once on a page the page goes crazy
448 * we need a slightly more unique id / name for the widget wrapper.
449 */
450 $uniqid = uniqid();
451
452 $src = sprintf( 'https://widgets.wp.com/likes/#blog_id=%1$d&amp;post_id=%2$d&amp;origin=%3$s&amp;obj_id=%1$d-%2$d-%4$s', $blog_id, $post_id, $domain, $uniqid );
453 $name = sprintf( 'like-post-frame-%1$d-%2$d-%3$s', $blog_id, $post_id, $uniqid );
454 $wrapper = sprintf( 'like-post-wrapper-%1$d-%2$d-%3$s', $blog_id, $post_id, $uniqid );
455 $headline = sprintf(
456 /** This filter is already documented in modules/sharedaddy/sharing-service.php */
457 apply_filters( 'jetpack_sharing_headline_html', '<h3 class="sd-title">%s</h3>', esc_html__( 'Like this:', 'jetpack' ), 'likes' ),
458 esc_html__( 'Like this:', 'jetpack' )
459 );
460
461 $html = "<div class='sharedaddy sd-block sd-like jetpack-likes-widget-wrapper jetpack-likes-widget-unloaded' id='$wrapper' data-src='$src' data-name='$name'>";
462 $html .= $headline;
463 $html .= "<div class='likes-widget-placeholder post-likes-widget-placeholder' style='height: 55px;'><span class='button'><span>" . esc_html__( 'Like', 'jetpack' ) . '</span></span> <span class="loading">' . esc_html__( 'Loading...', 'jetpack' ) . '</span></div>';
464 $html .= "<span class='sd-text-color'></span><a class='sd-link-color'></a>";
465 $html .= '</div>';
466
467 // Let's make sure that the script is enqueued
468 wp_enqueue_script( 'jetpack_likes_queuehandler' );
469
470 return $content . $html;
471 }
472
473 function post_flair_service_enabled_like( $classes ) {
474 $classes[] = 'sd-like-enabled';
475 return $classes;
476 }
477
478 function is_admin_bar_button_visible() {
479 global $wp_admin_bar;
480
481 if ( ! is_object( $wp_admin_bar ) )
482 return false;
483
484 if ( ( ! is_singular( 'post' ) && ! is_attachment() && ! is_page() ) )
485 return false;
486
487 if ( ! $this->settings->is_likes_visible() )
488 return false;
489
490 if ( ! $this->settings->is_post_likeable() )
491 return false;
492
493 /**
494 * Filters whether the Like button is enabled in the admin bar.
495 *
496 * @module likes
497 *
498 * @since 2.2.0
499 *
500 * @param bool true Should the Like button be visible in the Admin bar. Default to true.
501 */
502 return (bool) apply_filters( 'jetpack_admin_bar_likes_enabled', true );
503 }
504
505 function admin_bar_likes() {
506 global $wp_admin_bar;
507
508 $post_id = get_the_ID();
509
510 if ( ! is_numeric( $post_id ) || ! $this->is_admin_bar_button_visible() ) {
511 return;
512 }
513
514 $protocol = 'http';
515 if ( is_ssl() )
516 $protocol = 'https';
517
518 if ( defined( 'IS_WPCOM' ) && IS_WPCOM ) {
519 $blog_id = get_current_blog_id();
520 $bloginfo = get_blog_details( (int) $blog_id );
521 $domain = $bloginfo->domain;
522 } else {
523 $blog_id = Jetpack_Options::get_option( 'id' );
524 $url = home_url();
525 $url_parts = parse_url( $url );
526 $domain = $url_parts['host'];
527 }
528 // make sure to include the scripts before the iframe otherwise weird things happen
529 add_action( 'wp_footer', 'jetpack_likes_master_iframe', 21 );
530
531 $src = sprintf( 'https://widgets.wp.com/likes/#blog_id=%2$d&amp;post_id=%3$d&amp;origin=%1$s://%4$s', $protocol, $blog_id, $post_id, $domain );
532
533 $html = "<iframe class='admin-bar-likes-widget jetpack-likes-widget' scrolling='no' frameBorder='0' name='admin-bar-likes-widget' src='$src'></iframe>";
534
535 $node = array(
536 'id' => 'admin-bar-likes-widget',
537 'meta' => array(
538 'html' => $html
539 )
540 );
541
542 $wp_admin_bar->add_node( $node );
543 }
544 }
545
546 Jetpack_Likes::init();
547