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Jetpack – WP Security, Backup, Speed, & Growth / 5.1.4
Jetpack – WP Security, Backup, Speed, & Growth v5.1.4
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jetpack / modules / likes.php
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 * Adds in the jetpack-targetable class so when we visit sharing#likes our like settings get highlighted by a yellow box
145 * @param string $html row heading for the sharedaddy "which page" setting
146 * @return string html with the jetpack-targetable class and likes id. tbody gets closed after the like settings
147 */
148 function configuration_target_area( $html = '' ) {
149 $html = "<tbody id='likes' class='jetpack-targetable'>" . $html;
150 return $html;
151 }
152
153 /**
154 * WordPress.com: Metabox option for sharing (sharedaddy will handle this on the JP blog)
155 */
156 function sharing_meta_box_content( $post ) {
157 $post_id = ! empty( $post->ID ) ? (int) $post->ID : get_the_ID();
158 $disabled = get_post_meta( $post_id, 'sharing_disabled', true ); ?>
159 <p>
160 <label for="wpl_enable_post_sharing">
161 <input type="checkbox" name="wpl_enable_post_sharing" id="wpl_enable_post_sharing" value="1" <?php checked( !$disabled ); ?>>
162 <?php _e( 'Show sharing buttons.', 'jetpack' ); ?>
163 </label>
164 <input type="hidden" name="wpl_sharing_status_hidden" value="1" />
165 </p> <?php
166 }
167
168 /**
169 * Options to be added to the discussion page (see also admin_settings_init, etc below for Sharing settings page)
170 */
171
172 function admin_discussion_likes_settings_init() {
173 // Add a temporary section, until we can move the setting out of there and with the rest of the email notification settings
174 add_settings_section( 'likes-notifications', __( 'Likes Notifications', 'jetpack' ), array( $this, 'admin_discussion_likes_settings_section' ), 'discussion' );
175 add_settings_field( 'social-notifications', __( 'Email me whenever', 'jetpack' ), array( $this, 'admin_discussion_likes_settings_field' ), 'discussion', 'likes-notifications' );
176 // Register the setting
177 register_setting( 'discussion', 'social_notifications_like', array( $this, 'admin_discussion_likes_settings_validate' ) );
178 }
179
180 function admin_discussion_likes_settings_section() {
181 // Atypical usage here. We emit jquery to move likes notification checkbox to be with the rest of the email notification settings
182 ?>
183 <script type="text/javascript">
184 jQuery( function( $ ) {
185 var table = $( '#social_notifications_like' ).parents( 'table:first' ),
186 header = table.prevAll( 'h2:first' ),
187 newParent = $( '#moderation_notify' ).parent( 'label' ).parent();
188
189 if ( !table.length || !header.length || !newParent.length ) {
190 return;
191 }
192
193 newParent.append( '<br/>' ).append( table.end().parent( 'label' ).siblings().andSelf() );
194 header.remove();
195 table.remove();
196 } );
197 </script>
198 <?php
199 }
200
201 function admin_likes_get_option( $option ) {
202 if ( defined( 'IS_WPCOM' ) && IS_WPCOM ) {
203 $option_setting = get_blog_option( get_current_blog_id(), $option, 'on' );
204 } else {
205 $option_setting = get_option( $option, 'on' );
206 }
207
208 return intval( 'on' == $option_setting );
209 }
210
211 function admin_discussion_likes_settings_field() {
212 $like = $this->admin_likes_get_option( 'social_notifications_like' );
213 ?>
214 <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>
215 <?php
216 }
217
218 function admin_discussion_likes_settings_validate( $input ) {
219 // If it's not set (was unchecked during form submission) or was set to off (during option update), return 'off'.
220 if ( !$input || 'off' == $input )
221 return 'off';
222
223 // Otherwise, return 'on'.
224 return 'on';
225 }
226
227 function admin_init() {
228 add_filter( 'manage_posts_columns', array( $this, 'add_like_count_column' ) );
229 add_filter( 'manage_pages_columns', array( $this, 'add_like_count_column' ) );
230 add_action( 'manage_posts_custom_column', array( $this, 'likes_edit_column' ), 10, 2 );
231 add_action( 'manage_pages_custom_column', array( $this, 'likes_edit_column' ), 10, 2 );
232 add_action( 'admin_print_styles-edit.php', array( $this, 'load_admin_css' ) );
233 add_action( "admin_print_scripts-edit.php", array( $this, 'enqueue_admin_scripts' ) );
234 }
235
236 function action_init() {
237 if ( is_admin() ) {
238 return;
239 }
240
241 if ( ( defined( 'XMLRPC_REQUEST' ) && XMLRPC_REQUEST ) ||
242 ( defined( 'APP_REQUEST' ) && APP_REQUEST ) ||
243 ( defined( 'REST_API_REQUEST' ) && REST_API_REQUEST ) ||
244 ( defined( 'COOKIE_AUTH_REQUEST' ) && COOKIE_AUTH_REQUEST ) ||
245 ( defined( 'JABBER_SERVER' ) && JABBER_SERVER ) ) {
246 return;
247 }
248
249 if ( $this->in_jetpack ) {
250 add_filter( 'the_content', array( &$this, 'post_likes' ), 30, 1 );
251 add_filter( 'the_excerpt', array( &$this, 'post_likes' ), 30, 1 );
252
253 } else {
254 add_filter( 'post_flair', array( &$this, 'post_likes' ), 30, 1 );
255 add_filter( 'post_flair_block_css', array( $this, 'post_flair_service_enabled_like' ) );
256
257 wp_enqueue_script( 'postmessage', '/wp-content/js/postmessage.js', array( 'jquery' ), JETPACK__VERSION, false );
258 wp_enqueue_script( 'jetpack_resize', '/wp-content/js/jquery/jquery.jetpack-resize.js', array( 'jquery' ), JETPACK__VERSION, false );
259 wp_enqueue_script( 'jetpack_likes_queuehandler', plugins_url( 'queuehandler.js' , __FILE__ ), array( 'jquery', 'postmessage', 'jetpack_resize' ), JETPACK__VERSION, true );
260 wp_enqueue_style( 'jetpack_likes', plugins_url( 'jetpack-likes.css', __FILE__ ), array(), JETPACK__VERSION );
261 }
262 }
263
264 /**
265 * Register scripts
266 */
267 function register_scripts() {
268 wp_register_script( 'postmessage', plugins_url( '_inc/postmessage.js', dirname(__FILE__) ), array( 'jquery' ), JETPACK__VERSION, false );
269 wp_register_script( 'jetpack_resize', plugins_url( '_inc/jquery.jetpack-resize.js' , dirname(__FILE__) ), array( 'jquery' ), JETPACK__VERSION, false );
270 wp_register_script( 'jetpack_likes_queuehandler', plugins_url( 'likes/queuehandler.js' , __FILE__ ), array( 'jquery', 'postmessage', 'jetpack_resize' ), JETPACK__VERSION, true );
271 }
272
273 /**
274 * Load the CSS needed for the wp-admin area.
275 */
276 function load_admin_css() {
277 ?>
278 <style type="text/css">
279 .vers img { display: none; }
280 .metabox-prefs .vers img { display: inline; }
281 .fixed .column-likes { width: 5.5em; padding: 8px 0; text-align: left; }
282 .fixed .column-stats { width: 5em; }
283 .fixed .column-likes .post-com-count {
284 -webkit-box-sizing: border-box;
285 -moz-box-sizing: border-box;
286 box-sizing: border-box;
287 display: inline-block;
288 padding: 0 8px;
289 height: 2em;
290 margin-top: 5px;
291 -webkit-border-radius: 5px;
292 border-radius: 5px;
293 background-color: #72777C;
294 color: #FFF;
295 font-size: 11px;
296 line-height: 21px;
297 }
298 .fixed .column-likes .post-com-count::after { border: none !important; }
299 .fixed .column-likes .post-com-count:hover { background-color: #0073AA; }
300 .fixed .column-likes .vers:before {
301 font: normal 20px/1 dashicons;
302 content: '\f155';
303 speak: none;
304 -webkit-font-smoothing: antialiased;
305 -moz-osx-font-smoothing: grayscale;
306 }
307 @media screen and (max-width: 782px) {
308 .fixed .column-likes {
309 display: none;
310 }
311 }
312 </style>
313 <?php
314 }
315
316 /**
317 * Load the JS required for loading the like counts.
318 */
319 function enqueue_admin_scripts() {
320 if ( empty( $_GET['post_type'] ) || 'post' == $_GET['post_type'] || 'page' == $_GET['post_type'] ) {
321 if ( $this->in_jetpack ) {
322 wp_enqueue_script( 'likes-post-count', plugins_url( 'modules/likes/post-count.js', dirname( __FILE__ ) ), array( 'jquery' ), JETPACK__VERSION );
323 wp_enqueue_script( 'likes-post-count-jetpack', plugins_url( 'modules/likes/post-count-jetpack.js', dirname( __FILE__ ) ), array( 'likes-post-count' ), JETPACK__VERSION );
324 } else {
325 wp_enqueue_script( 'jquery.wpcom-proxy-request', "/wp-content/js/jquery/jquery.wpcom-proxy-request.js", array('jquery'), NULL, true );
326 wp_enqueue_script( 'likes-post-count', plugins_url( 'likes/post-count.js', dirname( __FILE__ ) ), array( 'jquery' ), JETPACK__VERSION );
327 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 );
328 }
329 }
330 }
331
332 /**
333 * Add "Likes" column data to the post edit table in wp-admin.
334 *
335 * @param string $column_name
336 * @param int $post_id
337 */
338 function likes_edit_column( $column_name, $post_id ) {
339 if ( 'likes' == $column_name ) {
340
341 if ( defined( 'IS_WPCOM' ) && IS_WPCOM ) {
342 $blog_id = get_current_blog_id();
343 } else {
344 $blog_id = Jetpack_Options::get_option( 'id' );
345 }
346
347 $permalink = get_permalink( get_the_ID() ); ?>
348 <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; ?>">
349 <span class="comment-count">0</span>
350 </a>
351 <?php
352 }
353 }
354
355 /**
356 * Add a "Likes" column header to the post edit table in wp-admin.
357 *
358 * @param array $columns
359 * @return array
360 */
361 function add_like_count_column( $columns ) {
362 $date = $columns['date'];
363 unset( $columns['date'] );
364
365 $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>';
366 $columns['date'] = $date;
367
368 return $columns;
369 }
370
371 function post_likes( $content ) {
372 $post_id = get_the_ID();
373
374 if ( ! is_numeric( $post_id ) || ! $this->settings->is_likes_visible() )
375 return $content;
376
377 if ( defined( 'IS_WPCOM' ) && IS_WPCOM ) {
378 $blog_id = get_current_blog_id();
379 $bloginfo = get_blog_details( (int) $blog_id );
380 $domain = $bloginfo->domain;
381 } else {
382 $blog_id = Jetpack_Options::get_option( 'id' );
383 $url = home_url();
384 $url_parts = parse_url( $url );
385 $domain = $url_parts['host'];
386 }
387 // make sure to include the scripts before the iframe otherwise weird things happen
388 add_action( 'wp_footer', 'jetpack_likes_master_iframe', 21 );
389
390 /**
391 * if the same post appears more then once on a page the page goes crazy
392 * we need a slightly more unique id / name for the widget wrapper.
393 */
394 $uniqid = uniqid();
395
396 $src = sprintf( 'https://widgets.wp.com/likes/#blog_id=%1$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 );
397 $name = sprintf( 'like-post-frame-%1$d-%2$d-%3$s', $blog_id, $post_id, $uniqid );
398 $wrapper = sprintf( 'like-post-wrapper-%1$d-%2$d-%3$s', $blog_id, $post_id, $uniqid );
399 $headline = sprintf(
400 /** This filter is already documented in modules/sharedaddy/sharing-service.php */
401 apply_filters( 'jetpack_sharing_headline_html', '<h3 class="sd-title">%s</h3>', esc_html__( 'Like this:', 'jetpack' ), 'likes' ),
402 esc_html__( 'Like this:', 'jetpack' )
403 );
404
405 $html = "<div class='sharedaddy sd-block sd-like jetpack-likes-widget-wrapper jetpack-likes-widget-unloaded' id='$wrapper' data-src='$src' data-name='$name'>";
406 $html .= $headline;
407 $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>';
408 $html .= "<span class='sd-text-color'></span><a class='sd-link-color'></a>";
409 $html .= '</div>';
410
411 // Let's make sure that the script is enqueued
412 wp_enqueue_script( 'jetpack_likes_queuehandler' );
413
414 return $content . $html;
415 }
416
417 function post_flair_service_enabled_like( $classes ) {
418 $classes[] = 'sd-like-enabled';
419 return $classes;
420 }
421
422 function is_admin_bar_button_visible() {
423 global $wp_admin_bar;
424
425 if ( ! is_object( $wp_admin_bar ) )
426 return false;
427
428 if ( ( ! is_singular( 'post' ) && ! is_attachment() && ! is_page() ) )
429 return false;
430
431 if ( ! $this->settings->is_likes_visible() )
432 return false;
433
434 if ( ! $this->settings->is_post_likeable() )
435 return false;
436
437 /**
438 * Filters whether the Like button is enabled in the admin bar.
439 *
440 * @module likes
441 *
442 * @since 2.2.0
443 *
444 * @param bool true Should the Like button be visible in the Admin bar. Default to true.
445 */
446 return (bool) apply_filters( 'jetpack_admin_bar_likes_enabled', true );
447 }
448
449 function admin_bar_likes() {
450 global $wp_admin_bar;
451
452 $post_id = get_the_ID();
453
454 if ( ! is_numeric( $post_id ) || ! $this->is_admin_bar_button_visible() ) {
455 return;
456 }
457
458 $protocol = 'http';
459 if ( is_ssl() )
460 $protocol = 'https';
461
462 if ( defined( 'IS_WPCOM' ) && IS_WPCOM ) {
463 $blog_id = get_current_blog_id();
464 $bloginfo = get_blog_details( (int) $blog_id );
465 $domain = $bloginfo->domain;
466 } else {
467 $blog_id = Jetpack_Options::get_option( 'id' );
468 $url = home_url();
469 $url_parts = parse_url( $url );
470 $domain = $url_parts['host'];
471 }
472 // make sure to include the scripts before the iframe otherwise weird things happen
473 add_action( 'wp_footer', 'jetpack_likes_master_iframe', 21 );
474
475 $src = sprintf( 'https://widgets.wp.com/likes/#blog_id=%2$d&amp;post_id=%3$d&amp;origin=%1$s://%4$s', $protocol, $blog_id, $post_id, $domain );
476
477 $html = "<iframe class='admin-bar-likes-widget jetpack-likes-widget' scrolling='no' frameBorder='0' name='admin-bar-likes-widget' src='$src'></iframe>";
478
479 $node = array(
480 'id' => 'admin-bar-likes-widget',
481 'meta' => array(
482 'html' => $html
483 )
484 );
485
486 $wp_admin_bar->add_node( $node );
487 }
488 }
489
490 Jetpack_Likes::init();
491