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Jetpack – WP Security, Backup, Speed, & Growth / 16.3-beta
Jetpack – WP Security, Backup, Speed, & Growth v16.3-beta
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jetpack / modules / likes.php

likes.php in Jetpack – WP Security, Backup, Speed, & Growth 16.3-beta, at modules/likes.php

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1 <?php //phpcs:ignore WordPress.Files.FileName.InvalidClassFileName
2 /**
3 * Module Name: Likes
4 * Module Description: Let readers like your posts to show appreciation and encourage interaction.
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 * @package automattic/jetpack
14 */
15 /**
16 * NOTE: While the front-end behavior currently varies, try to keep the data
17 * model here the same as on wpcom to facilitate Simple→Atomic moves and
18 * possible future work to recombine the front-ends.
19 */
20
21 // phpcs:disable Universal.Files.SeparateFunctionsFromOO.Mixed -- TODO: Move classes to appropriately-named class files.
22
23 use Automattic\Jetpack\Assets;
24 use Automattic\Jetpack\Sharing_Likes\Post_Likes_Switch;
25 use Automattic\Jetpack\Status\Host;
26
27 if ( ! defined( 'ABSPATH' ) ) {
28 exit( 0 );
29 }
30
31 add_filter(
32 'wp_resource_hints',
33 function ( $hints, $relation_type ) {
34 if ( 'dns-prefetch' !== $relation_type ) {
35 return $hints;
36 }
37
38 // Only hint on pages where Likes can render.
39 if ( ! is_singular() && ! is_home() && ! is_front_page() && ! is_archive() && ! is_search() ) {
40 return $hints;
41 }
42
43 return array_merge(
44 $hints,
45 array(
46 '//widgets.wp.com',
47 '//s0.wp.com',
48 '//0.gravatar.com',
49 '//1.gravatar.com',
50 '//2.gravatar.com',
51 )
52 );
53 },
54 10,
55 2
56 );
57
58 require_once __DIR__ . '/likes/jetpack-likes-master-iframe.php';
59 require_once __DIR__ . '/likes/jetpack-likes-settings.php';
60
61 /**
62 * Jetpack Like Class
63 */
64 class Jetpack_Likes {
65 /**
66 * Jetpack_Likes_Settings object
67 *
68 * @var Jetpack_Likes_Settings
69 */
70 public $settings;
71
72 /**
73 * Initialize class
74 */
75 public static function init() {
76 static $instance = null;
77
78 if ( ! $instance ) {
79 $instance = new Jetpack_Likes();
80 }
81
82 return $instance;
83 }
84
85 /**
86 * Constructs Likes class
87 */
88 public function __construct() {
89 $this->settings = new Jetpack_Likes_Settings();
90
91 // We need to run on wp hook rather than init because we check is_amp_endpoint()
92 // when bootstrapping hooks.
93 add_action( 'wp', array( $this, 'action_init' ), 99 );
94
95 add_action( 'admin_init', array( $this, 'admin_init' ) );
96
97 add_action( 'jetpack_activate_module_likes', array( $this, 'set_social_notifications_like' ) );
98 add_action( 'jetpack_deactivate_module_likes', array( $this, 'delete_social_notifications_like' ) );
99
100 // The `enable_module_configurable` method doesn't exist in the WP.com loader implementation.
101 if ( ! ( new Host() )->is_wpcom_simple() ) {
102 Jetpack::enable_module_configurable( __FILE__ );
103 }
104
105 add_filter( 'jetpack_module_configuration_url_likes', array( $this, 'jetpack_likes_configuration_url' ) );
106
107 $sharedaddy_active = Jetpack::is_module_active( 'sharedaddy' );
108
109 if ( ! $sharedaddy_active ) {
110 add_action( 'admin_init', array( $this->settings, 'add_meta_box' ) );
111 } else {
112 add_filter( 'sharing_meta_box_title', array( $this->settings, 'add_likes_to_sharing_meta_box_title' ) );
113 add_action( 'start_sharing_meta_box_content', array( $this->settings, 'meta_box_content' ) );
114 }
115
116 add_action( 'admin_init', array( $this, 'admin_discussion_likes_settings_init' ) ); // Likes notifications.
117
118 add_action( 'wp_enqueue_scripts', array( $this, 'load_styles_register_scripts' ) );
119
120 add_action( 'save_post', array( $this->settings, 'meta_box_save' ) );
121 add_action( 'edit_attachment', array( $this->settings, 'meta_box_save' ) );
122 }
123
124 /**
125 * Set the social_notifications_like option to `on` when the Likes module is activated.
126 *
127 * @since 3.7.0
128 */
129 public function set_social_notifications_like() {
130 update_option( 'social_notifications_like', 'on' );
131 }
132
133 /**
134 * Delete the social_notifications_like option that was set to `on` on module activation.
135 *
136 * @since 3.7.0
137 */
138 public function delete_social_notifications_like() {
139 delete_option( 'social_notifications_like' );
140 }
141
142 /**
143 * Overrides default configuration url
144 *
145 * @uses admin_url
146 * @return string module settings URL
147 */
148 public function jetpack_likes_configuration_url() {
149 return admin_url( 'options-general.php?page=sharing#likes' );
150 }
151
152 /**
153 * Loads Jetpack's CSS on the sharing page so we can use .jetpack-targetable
154 *
155 * @deprecated 16.3 Settings > Sharing is a plain WordPress settings screen now.
156 *
157 * @return void
158 */
159 public function load_jp_css() {
160 _deprecated_function( __METHOD__, 'jetpack-16.3' );
161 }
162
163 /**
164 * Adds in the jetpack-targetable class so when we visit sharing#likes our like settings get highlighted by a yellow box
165 *
166 * @deprecated 16.3 The Likes settings have a section of their own on Settings > Sharing.
167 *
168 * @param string $html row heading for the sharedaddy "which page" setting.
169 * @return string The unchanged $html.
170 */
171 public function configuration_target_area( $html = '' ) {
172 _deprecated_function( __METHOD__, 'jetpack-16.3' );
173 return $html;
174 }
175
176 /**
177 * Load scripts and styles for front end.
178 */
179 public function load_styles_register_scripts() {
180 // Likes are only rendered on pages that display post content.
181 if ( ! is_singular() && ! is_home() && ! is_front_page() && ! is_archive() && ! is_search() ) {
182 return;
183 }
184
185 $style_url = Assets::get_file_url_for_environment(
186 '_inc/build/likes/style.min.css',
187 'modules/likes/style.css'
188 );
189 wp_enqueue_style( 'jetpack_likes', $style_url, array(), JETPACK__VERSION );
190 $style_path = plugin_dir_path( JETPACK__PLUGIN_FILE ) . (
191 /** This filter is documented in projects/plugins/jetpack/load-jetpack.php */
192 apply_filters( 'jetpack_should_use_minified_assets', true )
193 ? '_inc/build/likes/style.min.css'
194 : 'modules/likes/style.css'
195 );
196 wp_style_add_data( 'jetpack_likes', 'path', $style_path );
197 wp_register_script(
198 'jetpack_likes_queuehandler',
199 Assets::get_file_url_for_environment(
200 '_inc/build/likes/queuehandler.min.js',
201 'modules/likes/queuehandler.js'
202 ),
203 array(),
204 JETPACK__VERSION,
205 true
206 );
207 }
208
209 /**
210 * Options to be added to the discussion page. The Sharing settings live in Sharing_Likes\Settings\Likes_Section.
211 */
212 public function admin_discussion_likes_settings_init() {
213 // Add a temporary section, until we can move the setting out of there and with the rest of the email notification settings.
214 add_settings_section( 'likes-notifications', __( 'Likes Notifications', 'jetpack' ), array( $this, 'admin_discussion_likes_settings_section' ), 'discussion' );
215 add_settings_field( 'social-notifications', __( 'Email me whenever', 'jetpack' ), array( $this, 'admin_discussion_likes_settings_field' ), 'discussion', 'likes-notifications' );
216 // Register the setting.
217 register_setting( 'discussion', 'social_notifications_like', array( $this, 'admin_discussion_likes_settings_validate' ) );
218 }
219
220 /** Add email notification options to WordPress discussion settings */
221 public function admin_discussion_likes_settings_section() {
222 // Atypical usage here. We emit jquery to move likes notification checkbox to be with the rest of the email notification settings.
223 ?>
224 <script type="text/javascript">
225 jQuery( function( $ ) {
226 var table = $( '#social_notifications_like' ).parents( 'table:first' ),
227 header = table.prevAll( 'h2:first' ),
228 newParent = $( '#moderation_notify' ).parent( 'label' ).parent();
229
230 if ( !table.length || !header.length || !newParent.length ) {
231 return;
232 }
233
234 newParent.append( '<br/>' ).append( table.end().parent( 'label' ).siblings().andSelf() );
235 header.remove();
236 table.remove();
237 } );
238 </script>
239 <?php
240 }
241
242 /** Check if email notifications for likes is on or off.
243 *
244 * @param string $option - which option we're checking (social_notifications_like).
245 */
246 public function admin_likes_get_option( $option ) {
247 $option_setting = get_option( $option, 'on' );
248
249 return (int) ( 'on' === $option_setting );
250 }
251
252 /** Display email notification for likes setting in WordPress' discussion settings. */
253 public function admin_discussion_likes_settings_field() {
254 $like = $this->admin_likes_get_option( 'social_notifications_like' );
255 ?>
256 <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>
257 <?php
258 }
259
260 /**
261 * Validate email notification settings.
262 *
263 * @param string $input - determines if checbox is on or off.
264 */
265 public function admin_discussion_likes_settings_validate( $input ) {
266 // If it's not set (was unchecked during form submission) or was set to off (during option update), return 'off'.
267 if ( ! $input || 'off' === $input ) {
268 return 'off';
269 }
270 // Otherwise return 'on'.
271 return 'on';
272 }
273
274 /** Initialize admin settings */
275 public function admin_init() {
276 add_filter( 'manage_posts_columns', array( $this, 'add_like_count_column' ) );
277 add_filter( 'manage_pages_columns', array( $this, 'add_like_count_column' ) );
278 add_action( 'manage_posts_custom_column', array( $this, 'likes_edit_column' ), 10, 2 );
279 add_action( 'manage_pages_custom_column', array( $this, 'likes_edit_column' ), 10, 2 );
280 add_action( 'admin_print_styles-edit.php', array( $this, 'load_admin_css' ) );
281 add_action( 'admin_print_scripts-edit.php', array( $this, 'enqueue_admin_scripts' ) );
282 }
283
284 /** Initialize action */
285 public function action_init() {
286 /*
287 * Only check if the module is enabled here because
288 * we are not currently in The Loop and do not yet have access to check
289 * the switch_like_status post meta flag for the post to be loaded.
290 */
291 if ( is_admin() || ! $this->settings->is_likes_module_enabled() ) {
292 return;
293 }
294
295 if ( ( defined( 'XMLRPC_REQUEST' ) && XMLRPC_REQUEST ) ||
296 ( defined( 'APP_REQUEST' ) && APP_REQUEST ) ||
297 ( defined( 'REST_API_REQUEST' ) && REST_API_REQUEST ) ||
298 ( defined( 'COOKIE_AUTH_REQUEST' ) && COOKIE_AUTH_REQUEST ) ||
299 ( defined( 'JABBER_SERVER' ) && JABBER_SERVER ) ) {
300 return;
301 }
302
303 if (
304 class_exists( 'Jetpack_AMP_Support' )
305 && Jetpack_AMP_Support::is_amp_request()
306 ) {
307 return;
308 }
309
310 add_filter( 'the_content', array( $this, 'post_likes' ), 30, 1 );
311 add_filter( 'the_excerpt', array( $this, 'post_likes' ), 30, 1 );
312 }
313
314 /**
315 * Load the CSS needed for the wp-admin area.
316 */
317 public function load_admin_css() {
318 ?>
319 <style type="text/css">
320 .vers img { display: none; }
321 .metabox-prefs .vers img { display: inline; }
322 .fixed .column-likes { width: 2.5em; padding: 4px 0; text-align: left; }
323 .fixed .column-stats { width: 5em; white-space: nowrap; }
324 .fixed .column-likes .post-com-count {
325 -webkit-box-sizing: border-box;
326 -moz-box-sizing: border-box;
327 box-sizing: border-box;
328 display: inline-block;
329 padding: 0 4px;
330 min-width: 2em;
331 text-align: center;
332 height: 2em;
333 margin-top: 5px;
334 -webkit-border-radius: 5px;
335 border-radius: 5px;
336 background-color: #787c82;
337 color: #FFF;
338 font-size: 11px;
339 line-height: 21px;
340 }
341 .fixed .column-likes .post-com-count::after { border: none !important; }
342 .fixed .column-likes .post-com-count:hover { background-color: #2271b1; }
343 .fixed .column-likes .vers::before {
344 font: normal 20px/1 dashicons;
345 content: '\f155';
346 speak: none;
347 -webkit-font-smoothing: antialiased;
348 -moz-osx-font-smoothing: grayscale;
349 }
350 @media screen and (max-width: 782px) {
351 .fixed .column-likes {
352 display: none;
353 }
354 }
355 </style>
356 <?php
357 }
358
359 /**
360 * Load the JS required for loading the like counts.
361 */
362 public function enqueue_admin_scripts() {
363 if ( empty( $_GET['post_type'] ) || 'post' === $_GET['post_type'] || 'page' === $_GET['post_type'] ) { //phpcs:ignore WordPress.Security.NonceVerification.Recommended
364 wp_enqueue_script(
365 'likes-post-count',
366 Assets::get_file_url_for_environment(
367 '_inc/build/likes/post-count.min.js',
368 'modules/likes/post-count.js'
369 ),
370 array( 'jquery' ),
371 JETPACK__VERSION,
372 false
373 );
374 wp_enqueue_script(
375 'likes-post-count-jetpack',
376 Assets::get_file_url_for_environment(
377 '_inc/build/likes/post-count-jetpack.min.js',
378 'modules/likes/post-count-jetpack.js'
379 ),
380 array( 'jquery', 'likes-post-count' ),
381 JETPACK__VERSION,
382 false
383 );
384 }
385 }
386
387 /**
388 * Add "Likes" column data to the post edit table in wp-admin.
389 *
390 * @param string $column_name - name of the column.
391 * @param int $post_id - the post id.
392 */
393 public function likes_edit_column( $column_name, $post_id ) {
394 if ( 'likes' === $column_name ) {
395
396 $blog_id = Jetpack_Options::get_option( 'id' );
397
398 $permalink = get_permalink( get_the_ID() );
399 ?>
400 <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; ?>">
401 <span class="comment-count">0</span>
402 </a>
403 <?php
404 }
405 }
406
407 /**
408 * Add a "Likes" column header to the post edit table in wp-admin.
409 *
410 * @param array $columns - array of columns in wp-admin.
411 */
412 public function add_like_count_column( $columns ) {
413 $date = $columns['date'];
414 unset( $columns['date'] );
415
416 $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 class="screen-reader-text">' . __( 'Likes', 'jetpack' ) . '</span></span>';
417 $columns['date'] = $date;
418
419 return $columns;
420 }
421
422 /**
423 * Append like button to content.
424 *
425 * @param string $content - content of the page.
426 */
427 public function post_likes( $content ) {
428 global $wp_current_filter;
429 $post_id = get_the_ID();
430
431 if ( ! is_numeric( $post_id ) || ! $this->settings->is_likes_visible() ) {
432 return $content;
433 }
434
435 // Do not output Likes on requests for ActivityPub requests.
436 if (
437 function_exists( '\Activitypub\is_activitypub_request' )
438 && \Activitypub\is_activitypub_request()
439 ) {
440 return $content;
441 }
442
443 // Ensure we don't display like button on post excerpts that are hooked inside the post content
444 if ( in_array( 'the_excerpt', (array) $wp_current_filter, true ) &&
445 in_array( 'the_content', (array) $wp_current_filter, true ) ) {
446 return $content;
447 }
448
449 $blog_id = Jetpack_Options::get_option( 'id' );
450 $url = home_url();
451 $url_parts = wp_parse_url( $url );
452 $domain = $url_parts['host'];
453
454 // Make sure to include the `queuehandler` scripts before the iframe otherwise the script won't find the iframe.
455 if ( ! has_action( 'wp_footer', 'jetpack_likes_master_iframe' ) ) {
456 add_action( 'wp_footer', 'jetpack_likes_master_iframe', 21 );
457 }
458
459 /**
460 * If the same post appears more then once on a page the page goes crazy
461 * we need a slightly more unique id / name for the widget wrapper.
462 */
463 $uniqid = uniqid();
464 $src = sprintf( 'https://widgets.wp.com/likes/?ver=%1$s#blog_id=%2$d&amp;post_id=%3$d&amp;origin=%4$s&amp;obj_id=%2$d-%3$d-%5$s', rawurlencode( JETPACK__VERSION ), $blog_id, $post_id, $domain, $uniqid );
465 $name = sprintf( 'like-post-frame-%1$d-%2$d-%3$s', $blog_id, $post_id, $uniqid );
466 $wrapper = sprintf( 'like-post-wrapper-%1$d-%2$d-%3$s', $blog_id, $post_id, $uniqid );
467 $headline = sprintf(
468 /** This filter is already documented in modules/sharedaddy/sharing-service.php */
469 apply_filters( 'jetpack_sharing_headline_html', '<h3 class="sd-title">%s</h3>', esc_html__( 'Like this:', 'jetpack' ), 'likes' ),
470 esc_html__( 'Like this:', 'jetpack' )
471 );
472
473 $title = esc_html__( 'Like or Reblog', 'jetpack' );
474
475 /** This filter is documented in modules/likes/jetpack-likes-master-iframe.php */
476 $src = apply_filters( 'jetpack_likes_iframe_src', $src );
477
478 $html = "<div class='sharedaddy sd-block sd-like jetpack-likes-widget-wrapper jetpack-likes-widget-unloaded' id='$wrapper' data-src='$src' data-name='$name' data-title='$title'>";
479 $html .= $headline;
480 require_once JETPACK__PLUGIN_DIR . '_inc/lib/class-jetpack-spinner.php';
481 $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">' . Jetpack_Spinner::render( 18 ) . '<span class="screen-reader-text">' . esc_html__( 'Loading…', 'jetpack' ) . '</span></span></div>';
482 $html .= "<span class='sd-text-color'></span><a class='sd-link-color'></a>";
483 $html .= '</div>';
484
485 // Let's make sure that the script is enqueued.
486 wp_enqueue_script( 'jetpack_likes_queuehandler' );
487
488 return $content . $html;
489 }
490 }
491
492 /**
493 * Callback to get the value for the jetpack_likes_enabled field.
494 *
495 * @deprecated 16.3 Use Automattic\Jetpack\Sharing_Likes\Post_Likes_Switch::get_value() instead.
496 *
497 * @param array $post - post data we're checking.
498 *
499 * @return bool|null
500 */
501 function jetpack_post_likes_get_value( array $post ) {
502 _deprecated_function( __FUNCTION__, 'jetpack-16.3', 'Automattic\Jetpack\Sharing_Likes\Post_Likes_Switch::get_value' );
503 return Post_Likes_Switch::get_value( $post );
504 }
505
506 /**
507 * Callback to set switch_like_status post_meta when jetpack_likes_enabled is updated.
508 *
509 * @deprecated 16.3 Use Automattic\Jetpack\Sharing_Likes\Post_Likes_Switch::update_value() instead.
510 *
511 * @param bool $enable_post_likes - checks if post likes are enabled.
512 * @param object $post_object - object containing post data.
513 *
514 * @return int|bool
515 */
516 function jetpack_post_likes_update_value( $enable_post_likes, $post_object ) {
517 _deprecated_function( __FUNCTION__, 'jetpack-16.3', 'Automattic\Jetpack\Sharing_Likes\Post_Likes_Switch::update_value' );
518 return Post_Likes_Switch::update_value( $enable_post_likes, $post_object );
519 }
520
521 /**
522 * Add Likes post_meta to the REST API Post response.
523 *
524 * @deprecated 16.3 Use Automattic\Jetpack\Sharing_Likes\Post_Likes_Switch::register_rest_field() instead.
525 */
526 function jetpack_post_likes_register_rest_field() {
527 _deprecated_function( __FUNCTION__, 'jetpack-16.3', 'Automattic\Jetpack\Sharing_Likes\Post_Likes_Switch::register_rest_field' );
528 Post_Likes_Switch::register_rest_field();
529 }
530
531 Post_Likes_Switch::init();
532
533 Jetpack_Likes::init();
534