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Jetpack – WP Security, Backup, Speed, & Growth / 16.2
Jetpack – WP Security, Backup, Speed, & Growth v16.2
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jetpack / modules / subscriptions.php

subscriptions.php in Jetpack – WP Security, Backup, Speed, & Growth 16.2, at modules/subscriptions.php

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1 <?php // phpcs:ignore WordPress.Files.FileName.InvalidClassFileName)
2 /**
3 * Module Name: Newsletter
4 * Module Description: Grow your subscriber list and deliver your content directly to their email inbox.
5 * Sort Order: 9
6 * Recommendation Order: 8
7 * First Introduced: 1.2
8 * Requires Connection: Yes
9 * Requires User Connection: Yes
10 * Auto Activate: Yes
11 * Module Tags: Social
12 * Feature: Engagement
13 * Additional Search Queries: subscriptions, subscription, email, follow, followers, subscribers, signup, newsletter, creator
14 */
15
16 // phpcs:disable Universal.Files.SeparateFunctionsFromOO.Mixed -- TODO: Move classes to appropriately-named class files.
17
18 use Automattic\Jetpack\Admin_UI\Admin_Menu;
19 use Automattic\Jetpack\Connection\Manager as Connection_Manager;
20 use Automattic\Jetpack\Connection\XMLRPC_Async_Call;
21 use Automattic\Jetpack\Newsletter\Settings as Newsletter_Settings;
22 use Automattic\Jetpack\Redirect;
23 use Automattic\Jetpack\Status;
24 use Automattic\Jetpack\Status\Host;
25
26 if ( ! defined( 'ABSPATH' ) ) {
27 exit( 0 );
28 }
29
30 add_action( 'jetpack_modules_loaded', 'jetpack_subscriptions_load' );
31
32 // Loads the User Content Link Redirection feature.
33 require_once __DIR__ . '/subscriptions/jetpack-user-content-link-redirection.php';
34
35 /**
36 * Loads the Subscriptions module.
37 */
38 function jetpack_subscriptions_load() {
39 Jetpack::enable_module_configurable( __FILE__ );
40 }
41
42 /**
43 * Cherry picks keys from `$_SERVER` array.
44 *
45 * @since 6.0.0
46 *
47 * @return array An array of server data.
48 */
49 function jetpack_subscriptions_cherry_pick_server_data() {
50 $data = array();
51
52 foreach ( $_SERVER as $key => $value ) {
53 if ( ! is_string( $value ) || str_starts_with( $key, 'HTTP_COOKIE' ) ) {
54 continue;
55 }
56
57 if ( str_starts_with( $key, 'HTTP_' ) || in_array( $key, array( 'REMOTE_ADDR', 'REQUEST_URI', 'DOCUMENT_URI' ), true ) ) {
58 $data[ $key ] = $value;
59 }
60 }
61
62 return $data;
63 }
64
65 /**
66 * Main class file for the Subscriptions module.
67 *
68 * @phan-constructor-used-for-side-effects
69 */
70 class Jetpack_Subscriptions {
71 /**
72 * Whether Jetpack has been instantiated or not.
73 *
74 * @var bool
75 */
76 public $jetpack = false;
77
78 /**
79 * Hash of the siteurl option.
80 *
81 * @var string
82 */
83 public static $hash;
84
85 /**
86 * Singleton
87 *
88 * @static
89 */
90 public static function init() {
91 static $instance = false;
92
93 if ( ! $instance ) {
94 $instance = new Jetpack_Subscriptions();
95 }
96
97 return $instance;
98 }
99
100 /**
101 * Jetpack_Subscriptions constructor.
102 */
103 public function __construct() {
104 $this->jetpack = Jetpack::init();
105
106 // Don't use COOKIEHASH as it could be shared across installs && is non-unique in multisite.
107 // @see: https://twitter.com/nacin/status/378246957451333632 .
108 self::$hash = md5( get_option( 'siteurl' ) );
109
110 add_filter( 'jetpack_xmlrpc_methods', array( $this, 'xmlrpc_methods' ) );
111
112 // @todo remove sync from subscriptions and move elsewhere...
113
114 // Add Configuration Page.
115 add_action( 'admin_init', array( $this, 'configure' ) );
116
117 // Catch subscription widget submits.
118 if ( isset( $_REQUEST['jetpack_subscriptions_widget'] ) ) { // phpcs:ignore WordPress.Security.NonceVerification.Recommended -- Nonce checked in widget_submit() for logged in users.
119 add_action( 'template_redirect', array( $this, 'widget_submit' ) );
120 }
121
122 // Set up the comment subscription checkboxes.
123 add_filter( 'comment_form_submit_field', array( $this, 'comment_subscribe_init' ), 10, 2 );
124
125 // Catch comment posts and check for subscriptions.
126 add_action( 'comment_post', array( $this, 'comment_subscribe_submit' ), 50, 2 );
127
128 // Adds post meta checkbox in the post submit metabox.
129 add_action( 'post_submitbox_misc_actions', array( $this, 'subscription_post_page_metabox' ) );
130
131 add_action( 'transition_post_status', array( $this, 'maybe_send_subscription_email' ), 10, 3 );
132
133 add_filter( 'jetpack_published_post_flags', array( $this, 'set_post_flags' ), 10, 2 );
134
135 add_filter( 'post_updated_messages', array( $this, 'update_published_message' ), 18, 1 );
136
137 // Set "social_notifications_subscribe" option during the first-time activation.
138 add_action( 'jetpack_activate_module_subscriptions', array( $this, 'set_social_notifications_subscribe' ) );
139 add_action( 'jetpack_activate_module_subscriptions', array( $this, 'set_featured_image_in_email_default' ) );
140 add_action( 'jetpack_activate_module_subscriptions', array( $this, 'set_newsletter_send_default' ) );
141
142 // Hide subscription messaging in Publish panel for posts that were published in the past
143 add_action( 'init', array( $this, 'register_post_meta' ), 20 );
144 add_action( 'transition_post_status', array( $this, 'maybe_set_first_published_status' ), 10, 3 );
145
146 // Add Subscribers menu to Jetpack navigation.
147 add_action( 'jetpack_admin_menu', array( $this, 'add_subscribers_menu' ) );
148
149 // Customize the configuration URL to lead to the Subscriptions settings.
150 add_filter(
151 'jetpack_module_configuration_url_subscriptions',
152 function () {
153 return Jetpack::admin_url( array( 'page' => 'jetpack#/newsletter' ) );
154 }
155 );
156
157 // Track categories created through the category editor page
158 add_action( 'wp_ajax_add-tag', array( $this, 'track_newsletter_category_creation' ), 1 );
159
160 $newsletter_settings = new Newsletter_Settings();
161 $newsletter_settings::init();
162 }
163
164 /**
165 * Jetpack_Subscriptions::xmlrpc_methods()
166 *
167 * Register subscriptions methods with the Jetpack XML-RPC server.
168 *
169 * @param array $methods Methods being registered.
170 */
171 public function xmlrpc_methods( $methods ) {
172 return array_merge(
173 $methods,
174 array(
175 'jetpack.subscriptions.subscribe' => array( $this, 'subscribe' ),
176 )
177 );
178 }
179
180 /**
181 * Disable Subscribe on Single Post
182 * Register post meta
183 */
184 public function subscription_post_page_metabox() {
185 if (
186 /**
187 * Filter whether or not to show the per-post subscription option.
188 *
189 * @module subscriptions
190 *
191 * @since 3.7.0
192 *
193 * @param bool true = show checkbox option on all new posts | false = hide the option.
194 */
195 ! apply_filters( 'jetpack_allow_per_post_subscriptions', false ) ) {
196 return;
197 }
198
199 if ( has_filter( 'jetpack_subscriptions_exclude_these_categories' ) || has_filter( 'jetpack_subscriptions_include_only_these_categories' ) ) {
200 return;
201 }
202
203 global $post;
204 $disable_subscribe_value = get_post_meta( $post->ID, '_jetpack_dont_email_post_to_subs', true );
205 // only show checkbox if post hasn't been published and is a 'post' post type.
206 if ( get_post_status( $post->ID ) !== 'publish' && get_post_type( $post->ID ) === 'post' ) :
207 // Nonce it.
208 wp_nonce_field( 'disable_subscribe', 'disable_subscribe_nonce' );
209 ?>
210 <div class="misc-pub-section">
211 <label for="_jetpack_dont_email_post_to_subs"><?php esc_html_e( 'Jetpack Subscriptions:', 'jetpack' ); ?></label><br>
212 <input type="checkbox" name="_jetpack_dont_email_post_to_subs" id="jetpack-per-post-subscribe" value="1" <?php checked( $disable_subscribe_value, 1, true ); ?> />
213 <?php esc_html_e( 'Don&#8217;t send this to subscribers', 'jetpack' ); ?>
214 </div>
215 <?php
216 endif;
217 }
218
219 /**
220 * Checks whether or not the post should be emailed to subscribers
221 *
222 * It checks for the following things in order:
223 * - Usage of filter jetpack_subscriptions_exclude_these_categories
224 * - Usage of filter jetpack_subscriptions_include_only_these_categories
225 * - Existence of the per-post checkbox option
226 *
227 * Only one of these can be used at any given time.
228 *
229 * @param string $new_status Tthe "new" post status of the transition when saved.
230 * @param string $old_status The "old" post status of the transition when saved.
231 * @param object $post obj The post object.
232 */
233 public function maybe_send_subscription_email( $new_status, $old_status, $post ) {
234
235 if ( defined( 'DOING_AUTOSAVE' ) && DOING_AUTOSAVE ) {
236 return;
237 }
238
239 // Make sure that the checkbox is preseved.
240 if ( ! empty( $_POST['disable_subscribe_nonce'] ) && wp_verify_nonce( $_POST['disable_subscribe_nonce'], 'disable_subscribe' ) ) { // phpcs:ignore WordPress.Security.ValidatedSanitizedInput -- WP Core doesn't unslash or sanitize nonces either.
241 $set_checkbox = isset( $_POST['_jetpack_dont_email_post_to_subs'] ) ? 1 : 0;
242 update_post_meta( $post->ID, '_jetpack_dont_email_post_to_subs', $set_checkbox );
243 }
244 }
245
246 /**
247 * Message used when publishing a post.
248 *
249 * @param array $messages Message array for a post.
250 */
251 public function update_published_message( $messages ) {
252 global $post;
253 if ( ! $this->should_email_post_to_subscribers( $post ) ) {
254 return $messages;
255 }
256
257 $view_post_link_html = sprintf(
258 ' <a href="%1$s">%2$s</a>',
259 esc_url( get_permalink( $post ) ),
260 __( 'View post', 'jetpack' )
261 );
262
263 $messages['post'][6] = sprintf(
264 /* translators: Message shown after a post is published */
265 esc_html__( 'Post published and sending emails to subscribers.', 'jetpack' )
266 ) . $view_post_link_html;
267 return $messages;
268 }
269
270 /**
271 * Determine if a post should notifiy subscribers via email.
272 *
273 * @param object $post The post.
274 */
275 public function should_email_post_to_subscribers( $post ) {
276 $should_email = true;
277 if ( get_post_meta( $post->ID, '_jetpack_dont_email_post_to_subs', true ) ) {
278 return false;
279 }
280
281 // Only posts are currently supported.
282 if ( 'post' !== $post->post_type ) {
283 return false;
284 }
285
286 // Private posts are not sent to subscribers.
287 if ( 'private' === $post->post_status ) {
288 return false;
289 }
290
291 /**
292 * Array of categories that will never trigger subscription emails.
293 *
294 * Will not send subscription emails from any post from within these categories.
295 *
296 * @module subscriptions
297 *
298 * @since 3.7.0
299 *
300 * @param array $args Array of category slugs or ID's.
301 */
302 $excluded_categories = apply_filters( 'jetpack_subscriptions_exclude_these_categories', array() );
303
304 // Never email posts from these categories.
305 if ( ! empty( $excluded_categories ) && in_category( $excluded_categories, $post->ID ) ) {
306 $should_email = false;
307 }
308
309 /**
310 * ONLY send subscription emails for these categories
311 *
312 * Will ONLY send subscription emails to these categories.
313 *
314 * @module subscriptions
315 *
316 * @since 3.7.0
317 *
318 * @param array $args Array of category slugs or ID's.
319 */
320 $only_these_categories = apply_filters( 'jetpack_subscriptions_exclude_all_categories_except', array() );
321
322 // Only emails posts from these categories.
323 if ( ! empty( $only_these_categories ) && ! in_category( $only_these_categories, $post->ID ) ) {
324 $should_email = false;
325 }
326
327 return $should_email;
328 }
329
330 /**
331 * Retrieve which flags should be added to a particular post.
332 *
333 * @param array $flags Flags to be added.
334 * @param object $post A post object.
335 */
336 public function set_post_flags( $flags, $post ) {
337 $flags['send_subscription'] = $this->should_email_post_to_subscribers( $post );
338 return $flags;
339 }
340
341 /**
342 * Jetpack_Subscriptions::configure()
343 *
344 * Jetpack Subscriptions configuration screen.
345 */
346 public function configure() {
347 // Create the section.
348 add_settings_section(
349 'jetpack_subscriptions',
350 __( 'Jetpack Subscriptions Settings', 'jetpack' ),
351 array( $this, 'subscriptions_settings_section' ),
352 'discussion'
353 );
354
355 /** Subscribe to Posts */
356
357 add_settings_field(
358 'jetpack_subscriptions_post_subscribe',
359 __( 'Follow Blog', 'jetpack' ),
360 array( $this, 'subscription_post_subscribe_setting' ),
361 'discussion',
362 'jetpack_subscriptions'
363 );
364
365 register_setting(
366 'discussion',
367 'stb_enabled'
368 );
369
370 /** Subscribe to Comments */
371
372 add_settings_field(
373 'jetpack_subscriptions_comment_subscribe',
374 __( 'Follow Comments', 'jetpack' ),
375 array( $this, 'subscription_comment_subscribe_setting' ),
376 'discussion',
377 'jetpack_subscriptions'
378 );
379
380 register_setting(
381 'discussion',
382 'stc_enabled'
383 );
384
385 /** Email me whenever: Someone subscribes to my blog */
386 /* @since 8.1 */
387
388 add_settings_section(
389 'notifications_section',
390 __( 'Someone subscribes to my blog', 'jetpack' ),
391 array( $this, 'social_notifications_subscribe_section' ),
392 'discussion'
393 );
394
395 add_settings_field(
396 'jetpack_subscriptions_social_notifications_subscribe',
397 __( 'Email me whenever', 'jetpack' ),
398 array( $this, 'social_notifications_subscribe_field' ),
399 'discussion',
400 'notifications_section'
401 );
402
403 register_setting(
404 'discussion',
405 'social_notifications_subscribe',
406 array( $this, 'social_notifications_subscribe_validate' )
407 );
408 }
409
410 /**
411 * Discussions setting section blurb.
412 */
413 public function subscriptions_settings_section() {
414 ?>
415 <p id="jetpack-subscriptions-settings"><?php esc_html_e( 'Change whether your visitors can subscribe to your posts or comments or both.', 'jetpack' ); ?></p>
416
417 <?php
418 }
419
420 /**
421 * Post Subscriptions Toggle.
422 */
423 public function subscription_post_subscribe_setting() {
424
425 $stb_enabled = get_option( 'stb_enabled', 1 );
426 ?>
427
428 <p class="description">
429 <input type="checkbox" name="stb_enabled" id="jetpack-post-subscribe" value="1" <?php checked( $stb_enabled, 1 ); ?> />
430 <?php
431 echo wp_kses(
432 __(
433 "Show a <em>'follow blog'</em> option in the comment form",
434 'jetpack'
435 ),
436 array( 'em' => array() )
437 );
438 ?>
439 </p>
440 <?php
441 }
442
443 /**
444 * Comments Subscriptions Toggle.
445 */
446 public function subscription_comment_subscribe_setting() {
447
448 $stc_enabled = get_option( 'stc_enabled', 1 );
449 ?>
450
451 <p class="description">
452 <input type="checkbox" name="stc_enabled" id="jetpack-comment-subscribe" value="1" <?php checked( $stc_enabled, 1 ); ?> />
453 <?php
454 echo wp_kses(
455 __(
456 "Show a <em>'follow comments'</em> option in the comment form",
457 'jetpack'
458 ),
459 array( 'em' => array() )
460 );
461 ?>
462 </p>
463
464 <?php
465 }
466
467 /**
468 * Someone subscribes to my blog section
469 *
470 * @since 8.1
471 */
472 public function social_notifications_subscribe_section() {
473 // Atypical usage here. We emit jquery to move subscribe notification checkbox to be with the rest of the email notification settings.
474 ?>
475 <script type="text/javascript">
476 jQuery( function( $ ) {
477 var table = $( '#social_notifications_subscribe' ).parents( 'table:first' ),
478 header = table.prevAll( 'h2:first' ),
479 newParent = $( '#moderation_notify' ).parent( 'label' ).parent();
480
481 if ( ! table.length || ! header.length || ! newParent.length ) {
482 return;
483 }
484
485 newParent.append( '<br/>' ).append( table.end().parent( 'label' ).siblings().andSelf() );
486 header.remove();
487 table.remove();
488 } );
489 </script>
490 <?php
491 }
492
493 /**
494 * Someone subscribes to my blog Toggle
495 *
496 * @since 8.1
497 */
498 public function social_notifications_subscribe_field() {
499 $checked = (int) ( 'on' === get_option( 'social_notifications_subscribe', 'on' ) );
500 ?>
501
502 <label>
503 <input type="checkbox" name="social_notifications_subscribe" id="social_notifications_subscribe" value="1" <?php checked( $checked ); ?> />
504 <?php
505 /* translators: this is a label for a setting that starts with "Email me whenever" */
506 esc_html_e( 'Someone subscribes to my blog', 'jetpack' );
507 ?>
508 </label>
509 <?php
510 }
511
512 /**
513 * Validate "Someone subscribes to my blog" option
514 *
515 * @since 8.1
516 *
517 * @param String $input the input string to be validated.
518 * @return string on|off
519 */
520 public function social_notifications_subscribe_validate( $input ) {
521 // If it's not set (was unchecked during form submission) or was set to off (during option update), return 'off'.
522 if ( ! $input || 'off' === $input ) {
523 return 'off';
524 }
525
526 // Otherwise we return 'on'.
527 return 'on';
528 }
529
530 /**
531 * Jetpack_Subscriptions::subscribe()
532 *
533 * Send a synchronous XML-RPC subscribe to blog posts or subscribe to post comments request.
534 *
535 * @param string $email being subscribed.
536 * @param array $post_ids (optional) defaults to 0 for blog posts only: array of post IDs to subscribe to blog's posts.
537 * @param bool $async (optional) Should the subscription be performed asynchronously? Defaults to true.
538 * @param array $extra_data Additional data passed to the `jetpack.subscribeToSite` call.
539 *
540 * @return true|WP_Error true on success
541 * invalid_email : not a valid email address
542 * invalid_post_id : not a valid post ID
543 * unknown_post_id : unknown post
544 * not_subscribed : strange error. Jetpack servers at WordPress.com could subscribe the email.
545 * disabled : Site owner has disabled subscriptions.
546 * active : Already subscribed.
547 * pending : Tried to subscribe before but the confirmation link is never clicked. No confirmation email is sent.
548 * unknown : strange error. Jetpack servers at WordPress.com returned something malformed.
549 * unknown_status : strange error. Jetpack servers at WordPress.com returned something I didn't understand.
550 */
551 public function subscribe( $email, $post_ids = 0, $async = true, $extra_data = array() ) {
552 if ( ! is_email( $email ) ) {
553 return new WP_Error( 'invalid_email' );
554 }
555
556 if ( ! $async ) {
557 $xml = new Jetpack_IXR_ClientMulticall();
558 }
559
560 foreach ( (array) $post_ids as $post_id ) {
561 $post_id = (int) $post_id;
562 if ( $post_id < 0 ) {
563 return new WP_Error( 'invalid_post_id' );
564 } elseif ( $post_id && ! get_post( $post_id ) ) {
565 return new WP_Error( 'unknown_post_id' );
566 }
567
568 if ( $async ) {
569 XMLRPC_Async_Call::add_call( 'jetpack.subscribeToSite', 0, $email, $post_id, serialize( $extra_data ) ); //phpcs:ignore WordPress.PHP.DiscouragedPHPFunctions.serialize_serialize
570 } else {
571 // @phan-suppress-next-line PhanPossiblyUndeclaredVariable -- $xml is set when $async is false
572 $xml->addCall( 'jetpack.subscribeToSite', $email, $post_id, serialize( $extra_data ) ); //phpcs:ignore WordPress.PHP.DiscouragedPHPFunctions.serialize_serialize
573 }
574 }
575
576 if ( $async ) {
577 return;
578 }
579
580 // Call.
581 // @phan-suppress-next-line PhanPossiblyUndeclaredVariable -- $xml is set when $async is false, otherwise we return early
582 $xml->query();
583
584 // @phan-suppress-next-line PhanPossiblyUndeclaredVariable -- $xml is set when $async is false, otherwise we return early
585 if ( $xml->isError() ) {
586 // @phan-suppress-next-line PhanPossiblyUndeclaredVariable -- $xml is set when $async is false, otherwise we return early
587 return $xml->get_jetpack_error();
588 }
589
590 // @phan-suppress-next-line PhanPossiblyUndeclaredVariable -- $xml is set when $async is false
591 $responses = $xml->getResponse();
592
593 $r = array();
594 foreach ( (array) $responses as $response ) {
595 if ( isset( $response['faultCode'] ) || isset( $response['faultString'] ) ) {
596 // @phan-suppress-next-line PhanPossiblyUndeclaredVariable -- $xml is set when $async is false
597 $r[] = $xml->get_jetpack_error( $response['faultCode'], $response['faultString'] );
598 continue;
599 }
600
601 if ( ! is_array( $response[0] ) || empty( $response[0]['status'] ) ) {
602 $r[] = new WP_Error( 'unknown' );
603 continue;
604 }
605
606 switch ( $response[0]['status'] ) {
607 case 'error':
608 $r[] = new WP_Error( 'not_subscribed' );
609 continue 2;
610 case 'disabled':
611 $r[] = new WP_Error( 'disabled' );
612 continue 2;
613 case 'active':
614 $r[] = new WP_Error( 'active' );
615 continue 2;
616 case 'confirming':
617 $r[] = true;
618 continue 2;
619 case 'pending':
620 $r[] = new WP_Error( 'pending' );
621 continue 2;
622 default:
623 $r[] = new WP_Error( 'unknown_status', (string) $response[0]['status'] );
624 continue 2;
625 }
626 }
627
628 return $r;
629 }
630
631 /**
632 * Jetpack_Subscriptions::widget_submit()
633 *
634 * When a user submits their email via the blog subscription widget, check the details and call the subsribe() method.
635 */
636 public function widget_submit() {
637 // Check the nonce.
638 if ( ! wp_verify_nonce( isset( $_REQUEST['_wpnonce'] ) ? sanitize_key( $_REQUEST['_wpnonce'] ) : '', 'blogsub_subscribe_' . \Jetpack_Options::get_option( 'id' ) ) ) {
639 return false;
640 }
641
642 if ( empty( $_REQUEST['email'] ) || ! is_string( $_REQUEST['email'] ) ) {
643 return false;
644 }
645
646 $redirect_fragment = false;
647 if ( isset( $_REQUEST['redirect_fragment'] ) ) {
648 $redirect_fragment = preg_replace( '/[^a-z0-9_-]/i', '', $_REQUEST['redirect_fragment'] ); // phpcs:ignore WordPress.Security.ValidatedSanitizedInput -- This is manually unslashing and sanitizing.
649 }
650 if ( ! $redirect_fragment || ! is_string( $redirect_fragment ) ) {
651 $redirect_fragment = 'subscribe-blog';
652 }
653
654 $subscribe = self::subscribe(
655 isset( $_REQUEST['email'] ) ? wp_unslash( $_REQUEST['email'] ) : null, // phpcs:ignore WordPress.Security.ValidatedSanitizedInput.InputNotSanitized -- Validated inside self::subscribe().
656 0,
657 false,
658 array(
659 'source' => 'widget',
660 'widget-in-use' => is_active_widget( false, false, 'blog_subscription', true ) ? 'yes' : 'no',
661 'comment_status' => '',
662 'server_data' => jetpack_subscriptions_cherry_pick_server_data(),
663 )
664 );
665
666 if ( is_wp_error( $subscribe ) ) {
667 $error = $subscribe->get_error_code();
668 } else {
669 $error = false;
670 foreach ( $subscribe as $response ) {
671 if ( is_wp_error( $response ) ) {
672 $error = $response->get_error_code();
673 break;
674 }
675 }
676 }
677
678 switch ( $error ) {
679 case false:
680 $result = 'success';
681 break;
682 case 'invalid_email':
683 $result = $error;
684 break;
685 case 'blocked_email':
686 $result = 'opted_out';
687 break;
688 case 'active':
689 $result = 'already';
690 break;
691 case 'flooded_email':
692 $result = 'many_pending_subs';
693 break;
694 case 'pending':
695 $result = 'pending';
696 break;
697 default:
698 $result = 'error';
699 break;
700 }
701
702 $redirect = add_query_arg( 'subscribe', $result );
703
704 /**
705 * Fires on each subscription form submission.
706 *
707 * @module subscriptions
708 *
709 * @since 3.7.0
710 *
711 * @param string $result Result of form submission: success, invalid_email, already, error.
712 */
713 do_action( 'jetpack_subscriptions_form_submission', $result );
714
715 wp_safe_redirect( "$redirect#$redirect_fragment" );
716 exit( 0 );
717 }
718
719 /**
720 * Jetpack_Subscriptions::comment_subscribe_init()
721 *
722 * Set up and add the comment subscription checkbox to the comment form.
723 *
724 * @param string $submit_button HTML markup for the submit field.
725 */
726 public function comment_subscribe_init( $submit_button ) {
727 global $post;
728
729 // Subscriptions are only available for posts so far.
730 if ( ! $post || 'post' !== $post->post_type ) {
731 return $submit_button;
732 }
733
734 $comments_checked = '';
735 $blog_checked = '';
736
737 // Check for a comment / blog submission and set a cookie to retain the setting and check the boxes.
738 if ( isset( $_COOKIE[ 'jetpack_comments_subscribe_' . self::$hash . '_' . $post->ID ] ) ) {
739 $comments_checked = ' checked="checked"';
740 }
741
742 if ( isset( $_COOKIE[ 'jetpack_blog_subscribe_' . self::$hash ] ) ) {
743 $blog_checked = ' checked="checked"';
744 }
745
746 // Some themes call this function, don't show the checkbox again.
747 remove_action( 'comment_form', 'subscription_comment_form' );
748
749 // Check if Mark Jaquith's Subscribe to Comments plugin is active - if so, suppress Jetpack checkbox.
750
751 $str = '';
752
753 if ( false === has_filter( 'comment_form', 'show_subscription_checkbox' ) && 1 === (int) get_option( 'stc_enabled', 1 ) && empty( $post->post_password ) && 'post' === get_post_type() ) {
754 // Subscribe to comments checkbox.
755 $str .= '<p class="comment-subscription-form"><input type="checkbox" name="subscribe_comments" id="subscribe_comments" value="subscribe" style="width: auto; -moz-appearance: checkbox; -webkit-appearance: checkbox;"' . $comments_checked . ' /> ';
756 $comment_sub_text = __( 'Notify me of follow-up comments by email.', 'jetpack' );
757 $str .= '<label class="subscribe-label" id="subscribe-label" for="subscribe_comments">' . esc_html(
758 /**
759 * Filter the Subscribe to comments text appearing below the comment form.
760 *
761 * @module subscriptions
762 *
763 * @since 3.4.0
764 *
765 * @param string $comment_sub_text Subscribe to comments text.
766 */
767 apply_filters( 'jetpack_subscribe_comment_label', $comment_sub_text )
768 ) . '</label>';
769 $str .= '</p>';
770 }
771
772 if ( 1 === (int) get_option( 'stb_enabled', 1 ) ) {
773 // Subscribe to blog checkbox.
774 $str .= '<p class="comment-subscription-form"><input type="checkbox" name="subscribe_blog" id="subscribe_blog" value="subscribe" style="width: auto; -moz-appearance: checkbox; -webkit-appearance: checkbox;"' . $blog_checked . ' /> ';
775 $blog_sub_text = __( 'Notify me of new posts by email.', 'jetpack' );
776 $str .= '<label class="subscribe-label" id="subscribe-blog-label" for="subscribe_blog">' . esc_html(
777 /**
778 * Filter the Subscribe to blog text appearing below the comment form.
779 *
780 * @module subscriptions
781 *
782 * @since 3.4.0
783 *
784 * @param string $comment_sub_text Subscribe to blog text.
785 */
786 apply_filters( 'jetpack_subscribe_blog_label', $blog_sub_text )
787 ) . '</label>';
788 $str .= '</p>';
789 }
790
791 /**
792 * Filter the output of the subscription options appearing below the comment form.
793 *
794 * @module subscriptions
795 *
796 * @since 1.2.0
797 *
798 * @param string $str Comment Subscription form HTML output.
799 */
800 $str = apply_filters( 'jetpack_comment_subscription_form', $str );
801
802 return $str . $submit_button;
803 }
804
805 /**
806 * Jetpack_Subscriptions::comment_subscribe_init()
807 *
808 * When a user checks the comment subscribe box and submits a comment, subscribe them to the comment thread.
809 *
810 * @param int|string $comment_id Comment thread being subscribed to.
811 * @param string $approved Comment status.
812 */
813 public function comment_subscribe_submit( $comment_id, $approved ) {
814 /**
815 * Filters whether to skip comment subscription processing.
816 *
817 * @since 15.5
818 *
819 * @param bool $skip Whether to skip comment subscription. Default false.
820 */
821 if ( apply_filters( 'jetpack_subscription_comment_subscribe_skip', false ) ) {
822 return;
823 }
824
825 if ( 'spam' === $approved ) {
826 return;
827 }
828
829 $comment = get_comment( $comment_id );
830 if ( ! $comment ) {
831 return;
832 }
833
834 // Set cookies for this post/comment.
835 $this->set_cookies( isset( $_REQUEST['subscribe_comments'] ), $comment->comment_post_ID, isset( $_REQUEST['subscribe_blog'] ) ); // phpcs:ignore WordPress.Security.NonceVerification.Recommended
836
837 if ( ! isset( $_REQUEST['subscribe_comments'] ) && ! isset( $_REQUEST['subscribe_blog'] ) ) { // phpcs:ignore WordPress.Security.NonceVerification.Recommended
838 return;
839 }
840
841 $post_ids = array();
842
843 if ( isset( $_REQUEST['subscribe_comments'] ) ) { // phpcs:ignore WordPress.Security.NonceVerification.Recommended
844 $post_ids[] = $comment->comment_post_ID;
845 }
846
847 if ( isset( $_REQUEST['subscribe_blog'] ) ) { // phpcs:ignore WordPress.Security.NonceVerification.Recommended
848 $post_ids[] = 0;
849 }
850
851 $result = self::subscribe(
852 $comment->comment_author_email,
853 $post_ids,
854 true,
855 array(
856 'source' => 'comment-form',
857 'widget-in-use' => is_active_widget( false, false, 'blog_subscription', true ) ? 'yes' : 'no',
858 'comment_status' => $approved,
859 'server_data' => jetpack_subscriptions_cherry_pick_server_data(),
860 )
861 );
862
863 /**
864 * Fires on each comment subscription form submission.
865 *
866 * @module subscriptions
867 *
868 * @since 5.5.0
869 *
870 * @param NULL|WP_Error $result Result of form submission: NULL on success, WP_Error otherwise.
871 * @param array $post_ids An array of post IDs that the user subscribed to, 0 means blog subscription.
872 */
873 do_action( 'jetpack_subscriptions_comment_form_submission', $result, $post_ids );
874 }
875
876 /**
877 * Jetpack_Subscriptions::set_cookies()
878 *
879 * Set a cookie to save state on the comment and post subscription checkboxes.
880 *
881 * @param bool $subscribe_to_post Whether the user chose to subscribe to subsequent comments on this post.
882 * @param int $post_id If $subscribe_to_post is true, the post ID they've subscribed to.
883 * @param bool $subscribe_to_blog Whether the user chose to subscribe to all new posts on the blog.
884 */
885 public function set_cookies( $subscribe_to_post = false, $post_id = null, $subscribe_to_blog = false ) {
886 $post_id = (int) $post_id;
887
888 /** This filter is already documented in core/wp-includes/comment-functions.php */
889 $cookie_lifetime = apply_filters( 'comment_cookie_lifetime', YEAR_IN_SECONDS );
890
891 /**
892 * Filter the Jetpack Comment cookie path.
893 *
894 * @module subscriptions
895 *
896 * @since 2.5.0
897 *
898 * @param string COOKIEPATH Cookie path.
899 */
900 $cookie_path = apply_filters( 'jetpack_comment_cookie_path', COOKIEPATH );
901
902 /**
903 * Filter the Jetpack Comment cookie domain.
904 *
905 * @module subscriptions
906 *
907 * @since 2.5.0
908 *
909 * @param string COOKIE_DOMAIN Cookie domain.
910 */
911 $cookie_domain = apply_filters( 'jetpack_comment_cookie_domain', COOKIE_DOMAIN );
912
913 if ( $subscribe_to_post && $post_id >= 0 ) {
914 setcookie( 'jetpack_comments_subscribe_' . self::$hash . '_' . $post_id, '1', time() + $cookie_lifetime, $cookie_path, $cookie_domain, is_ssl(), true );
915 } else {
916 setcookie( 'jetpack_comments_subscribe_' . self::$hash . '_' . $post_id, '', time() - 3600, $cookie_path, $cookie_domain, is_ssl(), true );
917 }
918
919 if ( $subscribe_to_blog ) {
920 setcookie( 'jetpack_blog_subscribe_' . self::$hash, '1', time() + $cookie_lifetime, $cookie_path, $cookie_domain, is_ssl(), true );
921 } else {
922 setcookie( 'jetpack_blog_subscribe_' . self::$hash, '', time() - 3600, $cookie_path, $cookie_domain, is_ssl(), true );
923 }
924 }
925
926 /**
927 * Set the social_notifications_subscribe option to `off` when the Subscriptions module is activated in the first time.
928 *
929 * @since 8.1
930 *
931 * @return void
932 */
933 public function set_social_notifications_subscribe() {
934 if ( false === get_option( 'social_notifications_subscribe' ) ) {
935 add_option( 'social_notifications_subscribe', 'off' );
936 }
937 }
938
939 /**
940 * Set the featured image in email option to `1` when the Subscriptions module is activated in the first time.
941 *
942 * @return void
943 */
944 public function set_featured_image_in_email_default() {
945 add_option( 'wpcom_featured_image_in_email', 1 );
946 }
947
948 /**
949 * Set the email post to subscribers default option to `1` when the Subscriptions module is activated for the first time.
950 *
951 * @return void
952 */
953 public function set_newsletter_send_default() {
954 add_option( 'wpcom_newsletter_send_default', 1 );
955 }
956
957 /**
958 * Save a flag when a post was ever published.
959 *
960 * It saves the post meta when the post was published and becomes a draft.
961 * Then this meta is used to hide subscription messaging in Publish panel.
962 *
963 * @param string $new_status Tthe "new" post status of the transition when saved.
964 * @param string $old_status The "old" post status of the transition when saved.
965 * @param object $post obj The post object.
966 */
967 public function maybe_set_first_published_status( $new_status, $old_status, $post ) {
968 // Subscriptions are only available for posts so far.
969 if ( ! $post instanceof \WP_Post || 'post' !== $post->post_type ) {
970 return;
971 }
972
973 $was_post_ever_published = get_post_meta( $post->ID, '_jetpack_post_was_ever_published', true );
974 if ( ! $was_post_ever_published && 'publish' === $old_status && 'draft' === $new_status ) {
975 update_post_meta( $post->ID, '_jetpack_post_was_ever_published', true );
976 }
977 }
978
979 /**
980 * Checks if the current user can edit posts.
981 *
982 * @return bool
983 */
984 public function first_published_status_meta_auth_callback() {
985 /**
986 * Filter the capability required to edit the "was ever published" post meta.
987 *
988 * @module subscriptions
989 *
990 * @since 13.4
991 *
992 * @param string $capability User capability needed to edit the "was ever published" meta. Default to edit_posts.
993 */
994 $capability = apply_filters( 'jetpack_subscriptions_post_was_ever_published_capability', 'edit_posts' );
995 if ( current_user_can( $capability ) ) {
996 return true;
997 }
998 return false;
999 }
1000
1001 /**
1002 * Registers the 'post_was_ever_published' post meta for use in the REST API.
1003 */
1004 public function register_post_meta() {
1005 $jetpack_post_was_ever_published = array(
1006 'type' => 'boolean',
1007 'description' => __( 'Whether the post was ever published.', 'jetpack' ),
1008 'single' => true,
1009 'default' => false,
1010 'show_in_rest' => array(
1011 'name' => 'jetpack_post_was_ever_published',
1012 ),
1013 'auth_callback' => array( $this, 'first_published_status_meta_auth_callback' ),
1014 'object_subtype' => 'post', // Subscriptions are only for the post post type so far, so we can limit this meta to posts only.
1015 );
1016
1017 register_meta( 'post', '_jetpack_post_was_ever_published', $jetpack_post_was_ever_published );
1018 }
1019
1020 /**
1021 * Create a Subscribers menu displayed on self-hosted sites.
1022 *
1023 * - It is not displayed on WordPress.com sites.
1024 * - It directs you to Calypso to the existing Subscribers page.
1025 * - It is retired once the Newsletter modernization filter is on, since the
1026 * unified Newsletter page then owns the Subscribers tab.
1027 *
1028 * @return void
1029 */
1030 public function add_subscribers_menu() {
1031 /*
1032 * Referenced as a string literal (mirrors Newsletter\Settings::MODERNIZATION_FILTER)
1033 * to keep this bootstrap path safe if the packaged Newsletter Settings class does
1034 * not expose the constant yet.
1035 */
1036 if ( apply_filters( 'rsm_jetpack_ui_modernization_newsletter', true ) ) {
1037 return;
1038 }
1039
1040 /*
1041 * Do not display any menu on WoA and WordPress.com Simple sites (unless Classic wp-admin is enabled).
1042 * They already get a menu item under Users via nav-unification.
1043 */
1044 if ( ( new Host() )->is_wpcom_platform() && get_option( 'wpcom_admin_interface' ) !== 'wp-admin' ) {
1045 return;
1046 }
1047
1048 $status = new Status();
1049
1050 /*
1051 * Do not display if we're in Offline mode,
1052 * or if the user is not connected.
1053 */
1054 if (
1055 $status->is_offline_mode()
1056 || ! ( new Connection_Manager( 'jetpack' ) )->is_user_connected()
1057 ) {
1058 return;
1059 }
1060
1061 /**
1062 * Enables the new in development subscribers in wp-admin dashboard.
1063 *
1064 * @since 9.5.0
1065 *
1066 * @param bool If the new dashboard is enabled. Defaults on for every site; hosts
1067 * can opt out with this filter.
1068 */
1069 if ( apply_filters( 'jetpack_wp_admin_subscriber_management_enabled', true ) ) {
1070 return;
1071 }
1072
1073 $blog_id = Connection_Manager::get_site_id( true );
1074
1075 $link = Redirect::get_url(
1076 'jetpack-menu-jetpack-manage-subscribers',
1077 array( 'site' => $blog_id ? $blog_id : $status->get_site_suffix() )
1078 );
1079
1080 Admin_Menu::add_menu(
1081 __( 'Subscribers', 'jetpack' ),
1082 __( 'Subscribers', 'jetpack' ) . ' <span aria-hidden="true">↗</span>',
1083 'manage_options',
1084 esc_url( $link ),
1085 null,
1086 100
1087 );
1088 }
1089
1090 /**
1091 * Record tracks event if categories is created when user enters
1092 * the edit category page through the newsletter settings page.
1093 *
1094 * @return void
1095 */
1096 public function track_newsletter_category_creation() {
1097
1098 // phpcs:disable WordPress.Security.NonceVerification.Missing
1099 if ( empty( $_POST['_wp_http_referer'] ) ) {
1100 return;
1101 }
1102
1103 if ( strpos( sanitize_url( wp_unslash( $_POST['_wp_http_referer'] ) ), 'referer=newsletter-categories' ) > -1 ) {
1104
1105 $parent = filter_var( empty( $_POST['parent'] ) ? 0 : wp_unslash( $_POST['parent'] ), FILTER_SANITIZE_NUMBER_INT );
1106
1107 $is_child_category = $parent > 0;
1108
1109 $tracking = new Automattic\Jetpack\Tracking();
1110 $tracking->tracks_record_event(
1111 wp_get_current_user(),
1112 'jetpack_newsletter_add_category',
1113 array(
1114 'is_child_category' => $is_child_category,
1115 )
1116 );
1117 }
1118 }
1119 }
1120
1121 Jetpack_Subscriptions::init();
1122
1123 require __DIR__ . '/subscriptions/views.php';
1124 require __DIR__ . '/subscriptions/subscribe-modal/class-jetpack-subscribe-modal.php';
1125 require __DIR__ . '/subscriptions/subscribe-overlay/class-jetpack-subscribe-overlay.php';
1126 require __DIR__ . '/subscriptions/subscribe-floating-button/class-jetpack-subscribe-floating-button.php';
1127 require __DIR__ . '/subscriptions/newsletter-widget/class-jetpack-newsletter-dashboard-widget.php';
1128
1129 require_once __DIR__ . '/subscriptions/abilities/class-newsletter-abilities.php';
1130 \Automattic\Jetpack\Plugin\Abilities\Newsletter_Abilities::init();
1131