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1<?php // phpcs:ignore WordPress.Files.FileName.InvalidClassFileName
2/**
3 * Manage settings via the WordPress.com REST API.
4 *
5 * @package automattic/jetpack
6 */
7
8use Automattic\Jetpack\Waf\Brute_Force_Protection\Brute_Force_Protection_Shared_Functions;
9
10if ( ! defined( 'ABSPATH' ) ) {
11    exit( 0 );
12}
13
14new WPCOM_JSON_API_Site_Settings_Endpoint(
15    array(
16        'description'      => 'Get detailed settings information about a site.',
17        'group'            => '__do_not_document',
18        'stat'             => 'sites:X',
19        'max_version'      => '1.1',
20        'new_version'      => '1.2',
21        'method'           => 'GET',
22        'path'             => '/sites/%s/settings',
23        'path_labels'      => array(
24            '$site' => '(int|string) Site ID or domain',
25        ),
26
27        'query_parameters' => array(
28            'context' => false,
29        ),
30
31        'response_format'  => WPCOM_JSON_API_Site_Settings_Endpoint::$site_format,
32
33        'example_request'  => 'https://public-api.wordpress.com/rest/v1/sites/en.blog.wordpress.com/settings',
34    )
35);
36
37new WPCOM_JSON_API_Site_Settings_Endpoint(
38    array(
39        'description'         => 'Update settings for a site.',
40        'group'               => '__do_not_document',
41        'stat'                => 'sites:X',
42        'max_version'         => '1.1',
43        'new_version'         => '1.2',
44        'method'              => 'POST',
45        'path'                => '/sites/%s/settings',
46        'a_new_very_long_key' => 'blabla',
47        'path_labels'         => array(
48            '$site' => '(int|string) Site ID or domain',
49        ),
50
51        'request_format'      => array(
52            'migration_source_site_domain'              => '(string) The source site URL, from the migration flow',
53            'in_site_migration_flow'                    => '(string) The migration flow the site is in',
54            'blogname'                                  => '(string) Blog name',
55            'blogdescription'                           => '(string) Blog description',
56            'default_pingback_flag'                     => '(bool) Notify blogs linked from article?',
57            'default_ping_status'                       => '(bool) Allow link notifications from other blogs?',
58            'default_comment_status'                    => '(bool) Allow comments on new articles?',
59            'blog_public'                               => '(string) Site visibility; -1: private, 0: discourage search engines, 1: allow search engines',
60            'wpcom_data_sharing_opt_out'                => '(bool) Did the site opt out of sharing public content with third parties and research partners?',
61            'jetpack_sync_non_public_post_stati'        => '(bool) allow sync of post and pages with non-public posts stati',
62            'jetpack_relatedposts_enabled'              => '(bool) Enable related posts?',
63            'jetpack_relatedposts_show_context'         => '(bool) Show post\'s tags and category in related posts?',
64            'jetpack_relatedposts_show_date'            => '(bool) Show date in related posts?',
65            'jetpack_relatedposts_show_headline'        => '(bool) Show headline in related posts?',
66            'jetpack_relatedposts_show_thumbnails'      => '(bool) Show thumbnails in related posts?',
67            'jetpack_protect_whitelist'                 => '(array) List of IP addresses to always allow',
68            'instant_search_enabled'                    => '(bool) Enable the new Jetpack Instant Search interface',
69            'jetpack_search_enabled'                    => '(bool) Enable Jetpack Search',
70            'jetpack_search_supported'                  => '(bool) Jetpack Search is supported',
71            'infinite_scroll'                           => '(bool) Support infinite scroll of posts?',
72            'default_category'                          => '(int) Default post category',
73            'default_post_format'                       => '(string) Default post format',
74            'require_name_email'                        => '(bool) Require comment authors to fill out name and email?',
75            'comment_registration'                      => '(bool) Require users to be registered and logged in to comment?',
76            'close_comments_for_old_posts'              => '(bool) Automatically close comments on old posts?',
77            'close_comments_days_old'                   => '(int) Age at which to close comments',
78            'thread_comments'                           => '(bool) Enable threaded comments?',
79            'thread_comments_depth'                     => '(int) Depth to thread comments',
80            'page_comments'                             => '(bool) Break comments into pages?',
81            'comments_per_page'                         => '(int) Number of comments to display per page',
82            'default_comments_page'                     => '(string) newest|oldest Which page of comments to display first',
83            'comment_order'                             => '(string) asc|desc Order to display comments within page',
84            'comments_notify'                           => '(bool) Email me when someone comments?',
85            'moderation_notify'                         => '(bool) Email me when a comment is helf for moderation?',
86            'social_notifications_like'                 => '(bool) Email me when someone likes my post?',
87            'social_notifications_reblog'               => '(bool) Email me when someone reblogs my post?',
88            'social_notifications_subscribe'            => '(bool) Email me when someone subscribes to my blog?',
89            'comment_moderation'                        => '(bool) Moderate comments for manual approval?',
90            'comment_previously_approved'               => '(bool) Moderate comments unless author has a previously-approved comment?',
91            'comment_max_links'                         => '(int) Moderate comments that contain X or more links',
92            'moderation_keys'                           => '(string) Words or phrases that trigger comment moderation, one per line',
93            'disallowed_keys'                           => '(string) Words or phrases that mark comment spam, one per line',
94            'lang_id'                                   => '(int) ID for language blog is written in',
95            'wga'                                       => '(array) Google Analytics Settings',
96            'disabled_likes'                            => '(bool) Are likes globally disabled (they can still be turned on per post)?',
97            'disabled_reblogs'                          => '(bool) Are reblogs disabled on posts?',
98            'jetpack_comment_likes_enabled'             => '(bool) Are comment likes enabled for all comments?',
99            'sharing_button_style'                      => '(string) Style to use for sharing buttons (icon-text, icon, text, or official)',
100            'sharing_label'                             => '(string) Label to use for sharing buttons, e.g. "Share this:"',
101            'sharing_show'                              => '(string|array:string) Post type or array of types where sharing buttons are to be displayed',
102            'sharing_open_links'                        => '(string) Link target for sharing buttons (same or new)',
103            'twitter_via'                               => '(string) Twitter username to include in tweets when people share using the Twitter button',
104            'jetpack-twitter-cards-site-tag'            => '(string) The Twitter username of the owner of the site\'s domain.',
105            'eventbrite_api_token'                      => '(int) The Keyring token ID for an Eventbrite token to associate with the site',
106            'timezone_string'                           => '(string) PHP-compatible timezone string like \'UTC-5\'',
107            'gmt_offset'                                => '(int) Site offset from UTC in hours',
108            'date_format'                               => '(string) PHP Date-compatible date format',
109            'time_format'                               => '(string) PHP Date-compatible time format',
110            'start_of_week'                             => '(int) Starting day of week (0 = Sunday, 6 = Saturday)',
111            'jetpack_testimonial'                       => '(bool) Whether testimonial custom post type is enabled for the site',
112            'jetpack_testimonial_posts_per_page'        => '(int) Number of testimonials to show per page',
113            'jetpack_portfolio'                         => '(bool) Whether portfolio custom post type is enabled for the site',
114            'jetpack_portfolio_posts_per_page'          => '(int) Number of portfolio projects to show per page',
115            Jetpack_SEO_Utils::FRONT_PAGE_META_OPTION   => '(string) The seo meta description for the site.',
116            Jetpack_SEO_Titles::TITLE_FORMATS_OPTION    => '(array) SEO meta title formats. Allowed keys: front_page, posts, pages, groups, archives',
117            'verification_services_codes'               => '(array) Website verification codes. Allowed keys: google, pinterest, bing, yandex, facebook',
118            'markdown_supported'                        => '(bool) Whether markdown is supported for this site',
119            'wpcom_publish_posts_with_markdown'         => '(bool) Whether markdown is enabled for posts',
120            'wpcom_publish_comments_with_markdown'      => '(bool) Whether markdown is enabled for comments',
121            'site_icon'                                 => '(int) Media attachment ID to use as site icon. Set to zero or an otherwise empty value to clear',
122            'api_cache'                                 => '(bool) Turn on/off the Jetpack JSON API cache',
123            'posts_per_page'                            => '(int) Number of posts to show on blog pages',
124            'posts_per_rss'                             => '(int) Number of posts to show in the RSS feed',
125            'rss_use_excerpt'                           => '(bool) Whether the RSS feed will use post excerpts',
126            'launchpad_screen'                          => '(string) Whether or not launchpad is presented and what size it will be',
127            'sm_enabled'                                => '(bool) Whether the newsletter subscribe modal is enabled',
128            'jetpack_subscribe_overlay_enabled'         => '(bool) Whether the newsletter subscribe overlay is enabled',
129            'jetpack_subscribe_floating_button_enabled' => '(bool) Whether the newsletter floating subscribe button is enabled',
130            'jetpack_subscriptions_subscribe_post_end_enabled' => '(bool) Whether the Subscribe block at the end of each post placement is enabled',
131            'jetpack_subscriptions_login_navigation_enabled' => '(bool) Whether the Subscriber Login block navigation placement is enabled',
132            'jetpack_subscriptions_subscribe_navigation_enabled' => '(Bool) Whether the Subscribe block navigation placement is enabled',
133            'wpcom_ai_site_prompt'                      => '(string) User input in the AI site prompt',
134            'jetpack_waf_automatic_rules'               => '(bool) Whether the WAF should enforce automatic firewall rules',
135            'jetpack_waf_ip_allow_list'                 => '(string) List of IP addresses to always allow',
136            'jetpack_waf_ip_allow_list_enabled'         => '(bool) Whether the IP allow list is enabled',
137            'jetpack_waf_ip_block_list'                 => '(string) List of IP addresses the WAF should always block',
138            'jetpack_waf_ip_block_list_enabled'         => '(bool) Whether the IP block list is enabled',
139            'jetpack_waf_share_data'                    => '(bool) Whether the WAF should share basic data with Jetpack',
140            'jetpack_waf_share_debug_data'              => '(bool) Whether the WAF should share debug data with Jetpack',
141            'jetpack_waf_automatic_rules_last_updated_timestamp' => '(int) Timestamp of the last time the automatic rules were updated',
142            'mcp_abilities'                             => '(array) List of MCP Abilities',
143        ),
144
145        'response_format'     => array(
146            'updated' => '(array)',
147        ),
148
149        'example_request'     => 'https://public-api.wordpress.com/rest/v1/sites/en.blog.wordpress.com/settings',
150    )
151);
152
153/**
154 * Manage Site settings endpoint.
155 *
156 * @phan-constructor-used-for-side-effects
157 */
158class WPCOM_JSON_API_Site_Settings_Endpoint extends WPCOM_JSON_API_Endpoint {
159
160    /**
161     * Site format.
162     *
163     * @var array
164     */
165    public static $site_format = array(
166        'ID'             => '(int) Site ID',
167        'name'           => '(string) Title of site',
168        'description'    => '(string) Tagline or description of site',
169        'URL'            => '(string) Full URL to the site',
170        'lang'           => '(string) Primary language code of the site',
171        'locale_variant' => '(string) Locale variant code for the site, if set',
172        'settings'       => '(array) An array of options/settings for the blog. Only viewable by users with post editing rights to the site.',
173    );
174
175    /**
176     * Endpoint response
177     *
178     * GET /sites/%s/settings
179     * POST /sites/%s/settings
180     *
181     * @param string $path    Path.
182     * @param int    $blog_id Blog ID.
183     */
184    public function callback( $path = '', $blog_id = 0 ) {
185        $blog_id = $this->api->switch_to_blog_and_validate_user( $this->api->get_blog_id( $blog_id ) );
186        if ( is_wp_error( $blog_id ) ) {
187            return $blog_id;
188        }
189
190        if ( defined( 'IS_WPCOM' ) && IS_WPCOM ) {
191            // Source & include the infinite scroll compatibility files prior to loading theme functions.
192            add_filter( 'restapi_theme_action_copy_dirs', array( 'WPCOM_JSON_API_Site_Settings_Endpoint', 'wpcom_restapi_copy_theme_plugin_actions' ) );
193            $this->load_theme_functions();
194        }
195
196        if ( ! is_user_logged_in() ) {
197            return new WP_Error( 'Unauthorized', 'You must be logged-in to manage settings.', 401 );
198        } elseif ( ! current_user_can( 'manage_options' ) ) {
199            return new WP_Error( 'Forbidden', 'You do not have the capability to manage settings for this site.', 403 );
200        }
201
202        if ( 'GET' === $this->api->method ) {
203            /**
204             * Fires on each GET request to a specific endpoint.
205             *
206             * @module json-api
207             *
208             * @since 3.2.0
209             *
210             * @param string sites.
211             */
212            do_action( 'wpcom_json_api_objects', 'sites' );
213            return $this->get_settings_response();
214        } elseif ( 'POST' === $this->api->method ) {
215            return $this->update_settings();
216        } else {
217            return new WP_Error( 'bad_request', 'An unsupported request method was used.' );
218        }
219    }
220
221    /**
222     * Includes additional theme-specific files to be included in REST API theme
223     * context loading action copying.
224     *
225     * @see WPCOM_JSON_API_Endpoint#load_theme_functions
226     * @see the_neverending_home_page_theme_support
227     *
228     * @param array $copy_dirs Array of files to be included in theme context.
229     */
230    public static function wpcom_restapi_copy_theme_plugin_actions( $copy_dirs ) {
231        $theme_name        = get_stylesheet();
232        $default_file_name = WP_CONTENT_DIR . "/mu-plugins/infinity/themes/{$theme_name}.php";
233
234        /**
235         * Filter the path to the Infinite Scroll compatibility file.
236         *
237         * @module infinite-scroll
238         *
239         * @since 2.0.0
240         *
241         * @param string $str IS compatibility file path.
242         * @param string $theme_name Theme name.
243         */
244        $customization_file = apply_filters( 'infinite_scroll_customization_file', $default_file_name, $theme_name );
245
246        if ( is_readable( $customization_file ) ) {
247            require_once $customization_file;
248            $copy_dirs[] = $customization_file;
249        }
250
251        return $copy_dirs;
252    }
253
254    /**
255     * Determines whether jetpack_relatedposts is supported
256     *
257     * @return bool
258     */
259    public function jetpack_relatedposts_supported() {
260        $wpcom_related_posts_theme_blacklist = array(
261            'Expound',
262            'Traveler',
263            'Opti',
264            'Currents',
265        );
266        return ( ! in_array( wp_get_theme()->get( 'Name' ), $wpcom_related_posts_theme_blacklist, true ) );
267    }
268
269    /**
270     * Returns category details
271     *
272     * @param WP_Term $category Category object.
273     *
274     * @return array
275     */
276    public function get_category_details( $category ) {
277        return array(
278            'value' => $category->term_id,
279            'name'  => $category->name,
280        );
281    }
282
283    /**
284     * Returns an option value as the result of the callable being applied to
285     * it if a value is set, otherwise null.
286     *
287     * @param string   $option_name   Option name.
288     * @param callable $cast_callable Callable to invoke on option value.
289     *
290     * @return int|null Numeric option value or null.
291     */
292    protected function get_cast_option_value_or_null( $option_name, $cast_callable ) {
293        $option_value = get_option( $option_name, null );
294        if ( $option_value === null ) {
295            return $option_value;
296        }
297
298        return call_user_func( $cast_callable, $option_value );
299    }
300
301    /**
302     * Collects the necessary information to return for a get settings response.
303     *
304     * @return array
305     */
306    public function get_settings_response() {
307        $response = array();
308
309        // Allow update in later versions.
310        /**
311         * Filter the structure of site settings to return.
312         *
313         * @module json-api
314         *
315         * @since 3.9.3
316         *
317         * @param array $site_format Data structure.
318         */
319        $response_format = apply_filters( 'site_settings_site_format', self::$site_format );
320
321        $blog_id = (int) $this->api->get_blog_id_for_output();
322        $site    = $this->get_platform()->get_site( $blog_id );
323
324        foreach ( array_keys( $response_format ) as $key ) {
325
326            // refactoring to change lang parameter to locale in 1.2.
327            $lang_or_locale = $this->get_locale( $key );
328            if ( $lang_or_locale ) {
329                $response[ $key ] = $lang_or_locale;
330                continue;
331            }
332
333            switch ( $key ) {
334                case 'ID':
335                    $response[ $key ] = $blog_id;
336                    break;
337                case 'name':
338                    $name             = get_bloginfo( 'name' );
339                    $response[ $key ] = is_string( $name ) ? htmlspecialchars_decode( $name, ENT_QUOTES ) : '';
340                    break;
341                case 'description':
342                    $description      = get_bloginfo( 'description' );
343                    $response[ $key ] = is_string( $description ) ? htmlspecialchars_decode( $description, ENT_QUOTES ) : '';
344                    break;
345                case 'URL':
346                    $response[ $key ] = (string) home_url();
347                    break;
348                case 'locale_variant':
349                    if ( function_exists( 'wpcom_l10n_get_blog_locale_variant' ) ) {
350                        $blog_locale_variant = wpcom_l10n_get_blog_locale_variant();
351                        if ( $blog_locale_variant ) {
352                            $response[ $key ] = $blog_locale_variant;
353                        }
354                    }
355                    break;
356                case 'settings':
357                    $jetpack_relatedposts_options = Jetpack_Options::get_option( 'relatedposts', array() );
358                    // If the option's enabled key is NOT SET, it is considered enabled by the plugin.
359                    if ( ! isset( $jetpack_relatedposts_options['enabled'] ) ) {
360                        $jetpack_relatedposts_options['enabled'] = true;
361                    }
362
363                    $jetpack_relatedposts_options['enabled'] =
364                        $jetpack_relatedposts_options['enabled']
365                        && $site->is_module_active( 'related-posts' );
366
367                    $jetpack_search_supported = false;
368                    if ( function_exists( 'wpcom_is_jetpack_search_supported' ) ) {
369                        $jetpack_search_supported = wpcom_is_jetpack_search_supported( $blog_id );
370                    }
371
372                    $jetpack_search_active =
373                        $jetpack_search_supported
374                        && $site->is_module_active( 'search' );
375
376                    // array_values() is necessary to ensure the array starts at index 0.
377                    $post_categories = array_values(
378                        array_map(
379                            array( $this, 'get_category_details' ),
380                            get_categories( array( 'hide_empty' => false ) )
381                        )
382                    );
383
384                    // Make sure we are returning a consistent type
385                    if ( ! class_exists( 'Jetpack_Newsletter_Category_Helper' ) ) {
386                        require_once JETPACK__PLUGIN_DIR . '_inc/lib/class-jetpack-newsletter-category-helper.php';
387                    }
388                    $newsletter_category_ids = Jetpack_Newsletter_Category_Helper::get_category_ids();
389
390                    $api_cache = $site->is_jetpack() ? (bool) get_option( 'jetpack_api_cache_enabled' ) : true;
391
392                    // Get Sites MCP settings
393                    $mcp_abilities = $this->get_site_mcp_abilities();
394
395                    $response[ $key ] = array(
396                        // also exists as "options".
397                        'admin_url'                        => get_admin_url(),
398                        'default_ping_status'              => 'closed' !== get_option( 'default_ping_status' ),
399                        'default_comment_status'           => 'closed' !== get_option( 'default_comment_status' ),
400
401                        // new stuff starts here.
402                        'instant_search_enabled'           => (bool) get_option( 'instant_search_enabled' ),
403                        'blog_public'                      => (int) get_option( 'blog_public' ),
404                        'wpcom_data_sharing_opt_out'       => (bool) get_option( 'wpcom_data_sharing_opt_out' ),
405                        'jetpack_sync_non_public_post_stati' => (bool) Jetpack_Options::get_option( 'sync_non_public_post_stati' ),
406                        'jetpack_relatedposts_allowed'     => (bool) $this->jetpack_relatedposts_supported(),
407                        'jetpack_relatedposts_enabled'     => (bool) $jetpack_relatedposts_options['enabled'],
408                        'jetpack_relatedposts_show_context' => ! empty( $jetpack_relatedposts_options['show_context'] ),
409                        'jetpack_relatedposts_show_date'   => ! empty( $jetpack_relatedposts_options['show_date'] ),
410                        'jetpack_relatedposts_show_headline' => ! empty( $jetpack_relatedposts_options['show_headline'] ),
411                        'jetpack_relatedposts_show_thumbnails' => ! empty( $jetpack_relatedposts_options['show_thumbnails'] ),
412                        'jetpack_search_enabled'           => $jetpack_search_active,
413                        'jetpack_search_supported'         => (bool) $jetpack_search_supported,
414                        'default_category'                 => (int) get_option( 'default_category' ),
415                        'post_categories'                  => (array) $post_categories,
416                        'default_post_format'              => get_option( 'default_post_format' ),
417                        'default_pingback_flag'            => (bool) get_option( 'default_pingback_flag' ),
418                        'require_name_email'               => (bool) get_option( 'require_name_email' ),
419                        'comment_registration'             => (bool) get_option( 'comment_registration' ),
420                        'close_comments_for_old_posts'     => (bool) get_option( 'close_comments_for_old_posts' ),
421                        'close_comments_days_old'          => (int) get_option( 'close_comments_days_old' ),
422                        'thread_comments'                  => (bool) get_option( 'thread_comments' ),
423                        'thread_comments_depth'            => (int) get_option( 'thread_comments_depth' ),
424                        'page_comments'                    => (bool) get_option( 'page_comments' ),
425                        'comments_per_page'                => (int) get_option( 'comments_per_page' ),
426                        'default_comments_page'            => get_option( 'default_comments_page' ),
427                        'comment_order'                    => get_option( 'comment_order' ),
428                        'comments_notify'                  => (bool) get_option( 'comments_notify' ),
429                        'moderation_notify'                => (bool) get_option( 'moderation_notify' ),
430                        'social_notifications_like'        => ( 'on' === get_option( 'social_notifications_like' ) ),
431                        'social_notifications_reblog'      => ( 'on' === get_option( 'social_notifications_reblog' ) ),
432                        'social_notifications_subscribe'   => ( 'on' === get_option( 'social_notifications_subscribe' ) ),
433                        'comment_moderation'               => (bool) get_option( 'comment_moderation' ),
434                        'comment_whitelist'                => (bool) get_option( 'comment_previously_approved' ),
435                        'comment_previously_approved'      => (bool) get_option( 'comment_previously_approved' ),
436                        'comment_max_links'                => (int) get_option( 'comment_max_links' ),
437                        'moderation_keys'                  => get_option( 'moderation_keys' ),
438                        'blacklist_keys'                   => get_option( 'disallowed_keys' ),
439                        'disallowed_keys'                  => get_option( 'disallowed_keys' ),
440                        'lang_id'                          => defined( 'IS_WPCOM' ) && IS_WPCOM
441                        ? get_lang_id_by_code( wpcom_l10n_get_blog_locale_variant( $blog_id, true ) )
442                        : get_option( 'lang_id' ),
443                        'site_vertical_id'                 => (string) get_option( 'site_vertical_id' ),
444                        'jetpack_cloudflare_analytics'     => get_option( 'jetpack_cloudflare_analytics' ),
445                        'disabled_likes'                   => (bool) get_option( 'disabled_likes' ),
446                        'disabled_reblogs'                 => (bool) get_option( 'disabled_reblogs' ),
447                        'jetpack_comment_likes_enabled'    => (bool) get_option( 'jetpack_comment_likes_enabled', false ),
448                        'twitter_via'                      => (string) get_option( 'twitter_via' ),
449                        'jetpack-twitter-cards-site-tag'   => (string) get_option( 'jetpack-twitter-cards-site-tag' ),
450                        'eventbrite_api_token'             => $this->get_cast_option_value_or_null( 'eventbrite_api_token', 'intval' ),
451                        'gmt_offset'                       => get_option( 'gmt_offset' ),
452                        'timezone_string'                  => get_option( 'timezone_string' ),
453                        'date_format'                      => get_option( 'date_format' ),
454                        'time_format'                      => get_option( 'time_format' ),
455                        'start_of_week'                    => get_option( 'start_of_week' ),
456                        'woocommerce_onboarding_profile'   => (array) get_option( 'woocommerce_onboarding_profile', array() ),
457                        'woocommerce_store_address'        => (string) get_option( 'woocommerce_store_address' ),
458                        'woocommerce_store_address_2'      => (string) get_option( 'woocommerce_store_address_2' ),
459                        'woocommerce_store_city'           => (string) get_option( 'woocommerce_store_city' ),
460                        'woocommerce_default_country'      => (string) get_option( 'woocommerce_default_country' ),
461                        'woocommerce_store_postcode'       => (string) get_option( 'woocommerce_store_postcode' ),
462                        'jetpack_testimonial'              => (bool) get_option( 'jetpack_testimonial', '0' ),
463                        'jetpack_testimonial_posts_per_page' => (int) get_option( 'jetpack_testimonial_posts_per_page', '10' ),
464                        'jetpack_portfolio'                => (bool) get_option( 'jetpack_portfolio', '0' ),
465                        'jetpack_portfolio_posts_per_page' => (int) get_option( 'jetpack_portfolio_posts_per_page', '10' ),
466                        'markdown_supported'               => true,
467                        'site_icon'                        => $this->get_cast_option_value_or_null( 'site_icon', 'intval' ),
468                        Jetpack_SEO_Utils::FRONT_PAGE_META_OPTION => get_option( Jetpack_SEO_Utils::FRONT_PAGE_META_OPTION, '' ),
469                        Jetpack_SEO_Titles::TITLE_FORMATS_OPTION => get_option( Jetpack_SEO_Titles::TITLE_FORMATS_OPTION, array() ),
470                        'api_cache'                        => $api_cache,
471                        'posts_per_page'                   => (int) get_option( 'posts_per_page' ),
472                        'posts_per_rss'                    => (int) get_option( 'posts_per_rss' ),
473                        'rss_use_excerpt'                  => (bool) get_option( 'rss_use_excerpt' ),
474                        'launchpad_screen'                 => (string) get_option( 'launchpad_screen' ),
475                        'wpcom_newsletter_send_default'    => (bool) get_option( 'wpcom_newsletter_send_default', true ),
476                        'wpcom_featured_image_in_email'    => ( function () use ( $site ) {
477                            if ( defined( 'IS_WPCOM' ) && IS_WPCOM ) {
478                                $registered_date = method_exists( $site, 'get_registered_date' ) ? $site->get_registered_date() : '';
479                                // Compare to May 2, 2025 (ISO 8601 format)
480                                if ( $registered_date && $registered_date !== '0000-00-00T00:00:00+00:00' && strtotime( $registered_date ) >= strtotime( '2025-05-02T00:00:00+00:00' ) ) {
481                                    return (bool) get_option( 'wpcom_featured_image_in_email', true );
482                                }
483                            }
484                            // For all other sites, use the saved value or default to false for legacy behavior.
485                            return (bool) get_option( 'wpcom_featured_image_in_email', false );
486                        } )(),
487                        'jetpack_gravatar_in_email'        => (bool) get_option( 'jetpack_gravatar_in_email', true ),
488                        'jetpack_author_in_email'          => (bool) get_option( 'jetpack_author_in_email', true ),
489                        'jetpack_post_date_in_email'       => (bool) get_option( 'jetpack_post_date_in_email', true ),
490                        'wpcom_newsletter_categories'      => $newsletter_category_ids,
491                        'wpcom_newsletter_categories_enabled' => (bool) get_option( 'wpcom_newsletter_categories_enabled' ),
492                        'sm_enabled'                       => (bool) get_option( 'sm_enabled' ),
493                        'jetpack_subscribe_overlay_enabled' => (bool) get_option( 'jetpack_subscribe_overlay_enabled' ),
494                        'jetpack_subscribe_floating_button_enabled' => (bool) get_option( 'jetpack_subscribe_floating_button_enabled' ),
495                        'jetpack_subscriptions_subscribe_post_end_enabled' => (bool) get_option( 'jetpack_subscriptions_subscribe_post_end_enabled' ),
496                        'jetpack_subscriptions_login_navigation_enabled' => (bool) get_option( 'jetpack_subscriptions_login_navigation_enabled' ),
497                        'jetpack_subscriptions_subscribe_navigation_enabled' => (bool) get_option( 'jetpack_subscriptions_subscribe_navigation_enabled' ),
498                        'wpcom_gifting_subscription'       => (bool) get_option( 'wpcom_gifting_subscription', $this->get_wpcom_gifting_subscription_default() ),
499                        'wpcom_reader_views_enabled'       => (bool) get_option( 'wpcom_reader_views_enabled', true ),
500                        'wpcom_subscription_emails_use_excerpt' => (bool) get_option( 'wpcom_subscription_emails_use_excerpt' ),
501                        'jetpack_subscriptions_reply_to'   => (string) $this->get_subscriptions_reply_to_option(),
502                        'jetpack_subscriptions_from_name'  => (string) get_option( 'jetpack_subscriptions_from_name' ),
503                        'show_on_front'                    => (string) get_option( 'show_on_front' ),
504                        'page_on_front'                    => (string) get_option( 'page_on_front' ),
505                        'page_for_posts'                   => (string) get_option( 'page_for_posts' ),
506                        'subscription_options'             => $this->get_subscription_options_in_user_locale(),
507                        'supports_free_tier_customization' => true,
508                        'jetpack_verbum_subscription_modal' => (bool) get_option( 'jetpack_verbum_subscription_modal', true ),
509                        'enable_verbum_commenting'         => (bool) get_option( 'enable_verbum_commenting', true ),
510                        'enable_blocks_comments'           => (bool) get_option( 'enable_blocks_comments', true ),
511                        'highlander_comment_form_prompt'   => $this->get_highlander_comment_form_prompt_option(),
512                        'jetpack_comment_form_color_scheme' => (string) get_option( 'jetpack_comment_form_color_scheme' ),
513                        'in_site_migration_flow'           => (string) get_option( 'in_site_migration_flow', '' ),
514                        'migration_source_site_domain'     => (string) get_option( 'migration_source_site_domain' ),
515                        'jetpack_waf_automatic_rules'      => (bool) get_option( 'jetpack_waf_automatic_rules' ),
516                        'jetpack_waf_ip_allow_list'        => (string) get_option( 'jetpack_waf_ip_allow_list' ),
517                        'jetpack_waf_ip_allow_list_enabled' => (bool) get_option( 'jetpack_waf_ip_allow_list_enabled' ),
518                        'jetpack_waf_ip_block_list'        => (string) get_option( 'jetpack_waf_ip_block_list' ),
519                        'jetpack_waf_ip_block_list_enabled' => (bool) get_option( 'jetpack_waf_ip_block_list_enabled' ),
520                        'jetpack_waf_share_data'           => (bool) get_option( 'jetpack_waf_share_data' ),
521                        'jetpack_waf_share_debug_data'     => (bool) get_option( 'jetpack_waf_share_debug_data' ),
522                        'jetpack_waf_automatic_rules_last_updated_timestamp' => (int) get_option( 'jetpack_waf_automatic_rules_last_updated_timestamp' ),
523                        'is_fully_managed_agency_site'     => (bool) get_option( 'is_fully_managed_agency_site' ),
524                        'wpcom_hide_action_bar'            => (bool) get_option( 'wpcom_hide_action_bar' ),
525                        'mcp_abilities'                    => $mcp_abilities,
526                    );
527
528                    require_once JETPACK__PLUGIN_DIR . '/modules/memberships/class-jetpack-memberships.php';
529                    if ( class_exists( 'Jetpack_Memberships' ) ) {
530                        $response[ $key ]['newsletter_has_active_plan'] = count( Jetpack_Memberships::get_all_newsletter_plan_ids( false ) ) > 0;
531                        // Read-only/derived: the free tier's markdown description rendered to
532                        // safe HTML, colocated with subscription_options so it's
533                        // read-after-write consistent. Not part of the writable
534                        // subscription_options bag (which would round-trip and persist it).
535                        $response[ $key ]['free_tier_description_rendered'] = Jetpack_Memberships::render_tier_description_html(
536                            ( (array) get_option( 'subscription_options' ) )['free_tier_description'] ?? ''
537                        );
538                    }
539
540                    if ( defined( 'IS_WPCOM' ) && IS_WPCOM ) {
541                        $response[ $key ]['wpcom_publish_posts_with_markdown']    = (bool) WPCom_Markdown::get_instance()->is_posting_enabled();
542                        $response[ $key ]['wpcom_publish_comments_with_markdown'] = (bool) WPCom_Markdown::get_instance()->is_commenting_enabled();
543
544                        // WPCOM-specific Infinite Scroll Settings.
545                        if ( is_callable( array( 'The_Neverending_Home_Page', 'get_settings' ) ) ) {
546                            /**
547                             * Clear the cached copy of widget info so it's pulled fresh from blog options.
548                             * It was primed during the initial load under the __REST API site__'s context.
549                             *
550                             * @see wp_get_sidebars_widgets https://core.trac.wordpress.org/browser/trunk/src/wp-includes/widgets.php?rev=42374#L931
551                             */
552                            $GLOBALS['_wp_sidebars_widgets'] = array(); // phpcs:ignore WordPress.WP.GlobalVariablesOverride.Prohibited
553
554                            $infinite_scroll_settings            = The_Neverending_Home_Page::get_settings();
555                            $response[ $key ]['infinite_scroll'] = get_option( 'infinite_scroll', true ) && 'scroll' === $infinite_scroll_settings->type;
556                            if ( $infinite_scroll_settings->footer_widgets || 'click' === $infinite_scroll_settings->requested_type ) {
557                                // The blog has footer widgets -- infinite scroll is blocked.
558                                $response[ $key ]['infinite_scroll_blocked'] = 'footer';
559                            } else {
560                                $response[ $key ]['infinite_scroll_blocked'] = false;
561                            }
562                        }
563                    }
564
565                    // allow future versions of this endpoint to support additional settings keys.
566                    /**
567                     * Filter the current site setting in the returned response.
568                     *
569                     * @module json-api
570                     *
571                     * @since 3.9.3
572                     * @since 13.6 Added the API object parameter.
573                     *
574                     * @param mixed $response_item A single site setting.
575                     * @param WPCOM_JSON_API_Site_Settings_Endpoint $this The API object.
576                     */
577                    $response[ $key ] = apply_filters( 'site_settings_endpoint_get', $response[ $key ], $this );
578
579                    if ( class_exists( 'Sharing_Service' ) ) {
580                        $ss                                       = new Sharing_Service();
581                        $sharing                                  = $ss->get_global_options();
582                        $response[ $key ]['sharing_button_style'] = (string) $sharing['button_style'];
583                        $response[ $key ]['sharing_label']        = (string) $sharing['sharing_label'];
584                        $response[ $key ]['sharing_show']         = (array) $sharing['show'];
585                        $response[ $key ]['sharing_open_links']   = (string) $sharing['open_links'];
586                    }
587
588                    $response[ $key ]['jetpack_protect_whitelist'] = Brute_Force_Protection_Shared_Functions::format_allow_list();
589
590                    if ( ! current_user_can( 'edit_posts' ) ) {
591                        unset( $response[ $key ] );
592                    }
593                    break;
594            }
595        }
596        return $response;
597    }
598
599    /**
600     * Get the default value for the wpcom_gifting_subscription option.
601     * The default value is the inverse of the plan's auto_renew setting.
602     *
603     * @return bool
604     */
605    protected function get_wpcom_gifting_subscription_default() {
606        if ( function_exists( 'wpcom_get_site_purchases' ) && function_exists( 'wpcom_purchase_has_feature' ) ) {
607            $purchases = wpcom_get_site_purchases();
608
609            foreach ( $purchases as $purchase ) {
610                if ( wpcom_purchase_has_feature( $purchase, \WPCOM_Features::SUBSCRIPTION_GIFTING ) ) {
611                    /*
612                     * We set default value as false when expiration date not match the following:
613                     * - 54 days before the annual plan expiration.
614                     * - 5 days before the monthly plan expiration.
615                     * This is to match the gifting banner logic.
616                     */
617                    $days_of_warning          = str_contains( $purchase->product_slug, 'monthly' ) ? 5 : 54;
618                    $seconds_until_expiration = strtotime( $purchase->expiry_date ) - time();
619                    if ( $seconds_until_expiration >= $days_of_warning * DAY_IN_SECONDS ) {
620                        return false;
621                    }
622
623                    // We set default to the inverse of auto-renew.
624                    if ( isset( $purchase->auto_renew ) ) {
625                        return ! $purchase->auto_renew;
626                    } elseif ( isset( $purchase->user_allows_auto_renew ) ) {
627                        return ! $purchase->user_allows_auto_renew;
628                    }
629                }
630            }
631        }
632        return false;
633    }
634
635    /**
636     * Reads `subscription_options` with the current user's locale active, to
637     * ensure that the defaults would be translated when displaying to the user
638     * or comparing the options before saving.
639     *
640     * @return array The `subscription_options` value, defaults included.
641     */
642    private function get_subscription_options_in_user_locale() {
643        $switched_locale = false;
644
645        if ( function_exists( 'wpcom_switch_to_user_locale' ) ) {
646            // Compare the locales before/after switch to decide if we should switch back
647            $locale_before = determine_locale();
648            // @phan-suppress-next-line PhanUndeclaredFunction -- Checked above. See also https://github.com/phan/phan/issues/1204.
649            wpcom_switch_to_user_locale();
650            $switched_locale = determine_locale() !== $locale_before;
651        }
652
653        // Resolve the defaults the same way get_option() does for a missing row (via the
654        // `default_option_*` filter with $passed_default = false), then let any stored
655        // sub-keys take precedence. Passing an array default keeps get_option() from
656        // re-populating the defaults, so a partial row stays partial before the merge.
657        $default_subscription_options = (array) apply_filters( 'default_option_subscription_options', array(), 'subscription_options', false );
658        $stored_subscription_options  = (array) get_option( 'subscription_options', array() );
659        $subscription_options         = array_merge( $default_subscription_options, $stored_subscription_options );
660
661        if ( $switched_locale ) {
662            restore_previous_locale();
663        }
664
665        return $subscription_options;
666    }
667
668    /**
669     * Get list of all site level MCP abilities.
670     *
671     * @return array
672     */
673    private function get_all_site_mcp_abilities(): array {
674        $all_abilities         = array();
675        $ability_registry_file = WP_CONTENT_DIR . '/mu-plugins/wpcom-mcp/includes/AbilitiesRegistry/Registry/AbilityRegistry.php';
676        if ( file_exists( $ability_registry_file ) ) {
677            require_once $ability_registry_file;
678            // @phan-suppress-next-line PhanUndeclaredClassMethod
679            $abilities_resources = Automattic\WpcomMcp\AbilitiesRegistry\Registry\AbilityRegistry::get_resources_for_server( 'site-level' );
680            // @phan-suppress-next-line PhanUndeclaredClassMethod
681            $abilities_tools = Automattic\WpcomMcp\AbilitiesRegistry\Registry\AbilityRegistry::get_tools_for_server( 'site-level' );
682            // @phan-suppress-next-line PhanUndeclaredClassMethod
683            $abilities_prompts = Automattic\WpcomMcp\AbilitiesRegistry\Registry\AbilityRegistry::get_prompts_for_server( 'site-level' );
684            $all_abilities     = array_merge( $abilities_resources, $abilities_tools, $abilities_prompts );
685        }
686        return apply_filters( 'jetpack_site_mcp_abilities', $all_abilities );
687    }
688
689    /**
690     * Get ability meta from config.
691     *
692     * @param string $ability_name Ability name, i.e. wpcom-mcp/posts-search.
693     *
694     * @return array
695     */
696    private function get_mcp_abilities_metadata( string $ability_name ): array {
697        $ability_meta          = array();
698        $ability_registry_file = WP_CONTENT_DIR . '/mu-plugins/wpcom-mcp/includes/AbilitiesRegistry/Registry/AbilityRegistry.php';
699        if ( file_exists( $ability_registry_file ) ) {
700            require_once $ability_registry_file;
701            // @phan-suppress-next-line PhanUndeclaredClassMethod
702            $ability_meta = Automattic\WpcomMcp\AbilitiesRegistry\Registry\AbilityRegistry::get_metadata( $ability_name );
703        }
704        return apply_filters( 'jetpack_site_mcp_ability_meta', $ability_meta, $ability_name );
705    }
706
707    /**
708     * Get MCP abilities for the current site.
709     *
710     * @return array
711     */
712    public function get_site_mcp_abilities(): array {
713        $current_mcp_abilities = get_option( 'mcp_abilities', array() );
714        if ( ! is_array( $current_mcp_abilities ) ) {
715            $current_mcp_abilities = array();
716        }
717
718        $all_abilities = $this->get_all_site_mcp_abilities();
719        if ( empty( $all_abilities ) ) {
720            return array();
721        }
722
723        $computed_abilities = array();
724        foreach ( $all_abilities as $ability_name ) {
725            // Get base metadata first
726            $ability_meta = $this->get_mcp_abilities_metadata( $ability_name );
727            if ( ! empty( $ability_meta ) ) {
728                // Use stored value or fall back to metadata default
729                $enabled = $current_mcp_abilities[ $ability_name ] ?? $ability_meta['enabled'] ?? false;
730
731                $computed_abilities[ $ability_name ] = array(
732                    'name'        => $ability_name,
733                    'title'       => $ability_meta['title'] ?? '',
734                    'description' => $ability_meta['description'] ?? '',
735                    'category'    => $ability_meta['category'] ?? '',
736                    'type'        => $ability_meta['type'] ?? '',
737                    'enabled'     => (bool) $enabled,
738                );
739            }
740        }
741        return $computed_abilities;
742    }
743
744    /**
745     * Sets the MCP abilities for the current site.
746     *
747     * @param mixed $value MCP abilities array.
748     *
749     * @return true|WP_Error
750     */
751    public function set_site_mcp_abilities( $value ) {
752        // Validate input format
753        if ( ! is_array( $value ) ) {
754            return new WP_Error( 'invalid_format', __( 'Site MCP abilities must be an array', 'jetpack' ) );
755        }
756
757        $all_abilities = $this->get_all_site_mcp_abilities();
758
759        // Filter ability names that don't exist
760        $value = array_filter(
761            $value,
762            function ( $ability_name ) use ( $all_abilities ) {
763                return in_array( $ability_name, $all_abilities, true );
764            },
765            ARRAY_FILTER_USE_KEY
766        );
767
768        // Validate each ability exists and value is boolean-like
769        foreach ( $value as $ability_name => $enabled ) {
770            if ( ! is_string( $ability_name ) || ( ! WPCOM_JSON_API::is_truthy( $enabled ) && ! WPCOM_JSON_API::is_falsy( $enabled ) ) ) {
771                $error_message = sprintf(
772                    // Translators: %s is an MCP ability name
773                    __( 'Invalid ability: %s', 'jetpack' ),
774                    $ability_name
775                );
776                return new WP_Error( 'invalid_ability', $error_message );
777            }
778        }
779
780        update_option( 'mcp_abilities', $value );
781
782        return true;
783    }
784
785    /**
786     * Get locale.
787     *
788     * @param string $key Language.
789     */
790    protected function get_locale( $key ) {
791        if ( 'lang' === $key ) {
792            if ( defined( 'IS_WPCOM' ) && IS_WPCOM ) {
793                return (string) get_blog_lang_code();
794            } else {
795                return get_locale();
796            }
797        }
798
799        return false;
800    }
801
802    /**
803     * Updates site settings for authorized users
804     *
805     * @return array|WP_Error
806     */
807    public function update_settings() {
808        /*
809         * $this->input() retrieves posted arguments whitelisted and casted to the $request_format
810         * specs that get passed in when this class is instantiated
811         */
812        $input            = $this->input();
813        $unfiltered_input = $this->input( false, false );
814        /**
815         * Filters the settings to be updated on the site.
816         *
817         * @module json-api
818         *
819         * @since 3.6.0
820         * @since 6.1.1 Added $unfiltered_input parameter.
821         *
822         * @param array $input              Associative array of site settings to be updated.
823         *                                  Cast and filtered based on documentation.
824         * @param array $unfiltered_input   Associative array of site settings to be updated.
825         *                                  Neither cast nor filtered. Contains raw input.
826         */
827        $input = apply_filters( 'rest_api_update_site_settings', $input, $unfiltered_input );
828
829        $blog_id = get_current_blog_id();
830
831        $jetpack_relatedposts_options = array();
832        $sharing_options              = array();
833        $updated                      = array();
834
835        if ( ! class_exists( 'Jetpack_Newsletter_Category_Helper' ) ) {
836            require_once JETPACK__PLUGIN_DIR . '_inc/lib/class-jetpack-newsletter-category-helper.php';
837        }
838
839        foreach ( $input as $key => $value ) {
840
841            if ( ! is_array( $value ) ) {
842                $value = trim( $value );
843            }
844
845            // preserve the raw value before unslashing the value. The slashes need to be preserved for date and time formats.
846            $raw_value = $value;
847            $value     = wp_unslash( $value );
848
849            switch ( $key ) {
850
851                case 'default_ping_status':
852                case 'default_comment_status':
853                    // settings are stored as closed|open.
854                    $coerce_value = ( $value ) ? 'open' : 'closed';
855                    if ( update_option( $key, $coerce_value ) ) {
856                        $updated[ $key ] = $value;
857                    }
858                    break;
859                case 'launchpad_screen':
860                    if ( in_array( $value, array( 'full', 'off', 'minimized' ), true ) ) {
861                        if ( update_option( $key, $value ) ) {
862                            $updated[ $key ] = $value;
863                        }
864                    }
865                    break;
866                case 'jetpack_protect_whitelist':
867                    if ( class_exists( 'Brute_Force_Protection_Shared_Functions' ) ) {
868                        $result = Brute_Force_Protection_Shared_Functions::save_allow_list( $value );
869                        if ( is_wp_error( $result ) ) {
870                            return $result;
871                        }
872                        $updated[ $key ] = Brute_Force_Protection_Shared_Functions::format_allow_list();
873                    }
874                    break;
875                case 'jetpack_sync_non_public_post_stati':
876                    Jetpack_Options::update_option( 'sync_non_public_post_stati', $value );
877                    break;
878                case 'jetpack_search_enabled':
879                    if ( $value ) {
880                        Jetpack::activate_module( $blog_id, 'search' );
881                    } else {
882                        // @phan-suppress-next-line PhanParamTooMany -- Phan doesn't know about the WP.com variant of the Jetpack class.
883                        Jetpack::deactivate_module( $blog_id, 'search' );
884                    }
885                    $updated[ $key ] = (bool) $value;
886                    break;
887                case 'jetpack_relatedposts_enabled':
888                case 'jetpack_relatedposts_show_context':
889                case 'jetpack_relatedposts_show_date':
890                case 'jetpack_relatedposts_show_thumbnails':
891                case 'jetpack_relatedposts_show_headline':
892                    if ( ! $this->jetpack_relatedposts_supported() ) {
893                        break;
894                    }
895                    if ( 'jetpack_relatedposts_enabled' === $key ) {
896                        if ( $value ) {
897                            Jetpack::activate_module( $blog_id, 'related-posts' );
898                        } else {
899                            // @phan-suppress-next-line PhanParamTooMany -- Phan doesn't know about the WP.com variant of the Jetpack class.
900                            Jetpack::deactivate_module( $blog_id, 'related-posts' );
901                        }
902                    }
903                    $just_the_key                                  = substr( $key, 21 );
904                    $jetpack_relatedposts_options[ $just_the_key ] = $value;
905                    break;
906
907                case 'social_notifications_like':
908                case 'social_notifications_reblog':
909                case 'social_notifications_subscribe':
910                    // settings are stored as on|off.
911                    $coerce_value = ( $value ) ? 'on' : 'off';
912                    if ( update_option( $key, $coerce_value ) ) {
913                        $updated[ $key ] = $value;
914                    }
915                    break;
916
917                case 'cloudflare_analytics':
918                    if ( ! isset( $value['code'] ) || ! preg_match( '/^$|^[a-fA-F0-9]+$/i', $value['code'] ) ) {
919                        return new WP_Error( 'invalid_code', __( 'Invalid Cloudflare Analytics ID', 'jetpack' ) );
920                    }
921
922                    if ( update_option( $key, $value ) ) {
923                        $updated[ $key ] = $value;
924                    }
925                    break;
926
927                case 'jetpack_testimonial':
928                case 'jetpack_portfolio':
929                case 'jetpack_comment_likes_enabled':
930                case 'wpcom_reader_views_enabled':
931                case 'jetpack_verbum_subscription_modal':
932                    // settings are stored as 1|0.
933                    $coerce_value = (int) $value;
934                    if ( update_option( $key, $coerce_value ) ) {
935                        $updated[ $key ] = (bool) $value;
936                    }
937                    break;
938
939                case 'jetpack_testimonial_posts_per_page':
940                case 'jetpack_portfolio_posts_per_page':
941                    // settings are stored as numeric.
942                    $coerce_value = (int) $value;
943                    if ( update_option( $key, $coerce_value ) ) {
944                        $updated[ $key ] = $coerce_value;
945                    }
946                    break;
947
948                // Sharing options.
949                case 'sharing_button_style':
950                case 'sharing_show':
951                case 'sharing_open_links':
952                    $sharing_options[ preg_replace( '/^sharing_/', '', $key ) ] = $value;
953                    break;
954                case 'sharing_label':
955                    $sharing_options[ $key ] = $value;
956                    break;
957
958                // Keyring token option.
959                case 'eventbrite_api_token':
960                    // These options can only be updated for sites hosted on WordPress.com.
961                    if ( defined( 'IS_WPCOM' ) && IS_WPCOM ) {
962                        if ( empty( $value ) || WPCOM_JSON_API::is_falsy( $value ) ) {
963                            if ( delete_option( $key ) ) {
964                                $updated[ $key ] = null;
965                            }
966                        } elseif ( update_option( $key, $value ) ) {
967                            $updated[ $key ] = (int) $value;
968                        }
969                    }
970                    break;
971
972                case 'api_cache':
973                    if ( empty( $value ) || WPCOM_JSON_API::is_falsy( $value ) ) {
974                        if ( delete_option( 'jetpack_api_cache_enabled' ) ) {
975                            $updated[ $key ] = false;
976                        }
977                    } elseif ( update_option( 'jetpack_api_cache_enabled', true ) ) {
978                        $updated[ $key ] = true;
979                    }
980                    break;
981
982                case 'timezone_string':
983                    /*
984                     * Map UTC+- timezones to gmt_offsets and set timezone_string to empty
985                     * https://github.com/WordPress/WordPress/blob/4.4.2/wp-admin/options.php#L175
986                     */
987                    if ( ! empty( $value ) && preg_match( '/^UTC[+-]/', $value ) ) {
988                        $gmt_offset = preg_replace( '/UTC\+?/', '', $value );
989                        if ( update_option( 'gmt_offset', $gmt_offset ) ) {
990                            $updated['gmt_offset'] = $gmt_offset;
991                        }
992
993                        $value = '';
994                    }
995
996                    /*
997                     * Always set timezone_string either with the given value or with an
998                     * empty string
999                     */
1000                    if ( update_option( $key, $value ) ) {
1001                        $updated[ $key ] = $value;
1002                    }
1003                    break;
1004
1005                case 'subscription_options':
1006                    if ( ! is_array( $value ) ) {
1007                        break;
1008                    }
1009
1010                    $allowed_keys   = array( 'invitation', 'comment_follow', 'welcome', 'subscribe_modal_heading', 'free_tier_description', 'hide_free_tier' );
1011                    $filtered_value = array_filter(
1012                        $value,
1013                        function ( $key ) use ( $allowed_keys ) {
1014                            return in_array( $key, $allowed_keys, true );
1015                        },
1016                        ARRAY_FILTER_USE_KEY
1017                    );
1018
1019                    if ( empty( $filtered_value ) ) {
1020                        break;
1021                    }
1022
1023                    // `hide_free_tier` is a boolean flag, so pull it out before the HTML
1024                    // sanitization below (which expects strings). Parse it with is_truthy()
1025                    // so stringy booleans (e.g. "false", "0") are interpreted correctly
1026                    // rather than being treated as truthy by a plain `! empty()`.
1027                    $has_hide_free_tier = array_key_exists( 'hide_free_tier', $filtered_value );
1028                    $hide_free_tier     = $has_hide_free_tier && WPCOM_JSON_API::is_truthy( $filtered_value['hide_free_tier'] );
1029                    unset( $filtered_value['hide_free_tier'] );
1030
1031                    array_walk_recursive(
1032                        $filtered_value,
1033                        function ( &$value ) {
1034                            $value = wp_kses(
1035                                $value,
1036                                array(
1037                                    'a' => array(
1038                                        'href' => array(),
1039                                    ),
1040                                )
1041                            );
1042                        }
1043                    );
1044
1045                    // Normalize whitespace-only `subscribe_modal_heading` input to empty so
1046                    // the modal template's `empty()` fallback fires. PHP's `empty()` treats
1047                    // `"   "` as non-empty, which would otherwise render a blank heading.
1048                    if ( isset( $filtered_value['subscribe_modal_heading'] ) ) {
1049                        $filtered_value['subscribe_modal_heading'] = trim( $filtered_value['subscribe_modal_heading'] );
1050                    }
1051
1052                    // The free tier description is stored as plain markdown source, so strip
1053                    // all HTML and cap its length to match the paid-tier description field.
1054                    // WordPress core guarantees mb_substr() (polyfilled in wp-includes/compat.php
1055                    // when the mbstring extension is unavailable), so it's safe to use directly.
1056                    // A JSON payload could supply a non-scalar (array/object) for this field,
1057                    // which would fatal in wp_kses()/mb_substr() on PHP 8+, so drop invalid values.
1058                    if ( isset( $filtered_value['free_tier_description'] ) ) {
1059                        if ( is_scalar( $filtered_value['free_tier_description'] ) ) {
1060                            $filtered_value['free_tier_description'] = mb_substr( wp_kses( (string) $filtered_value['free_tier_description'], array() ), 0, 500 );
1061                        } else {
1062                            unset( $filtered_value['free_tier_description'] );
1063                        }
1064                    }
1065
1066                    if ( $has_hide_free_tier ) {
1067                        $filtered_value['hide_free_tier'] = $hide_free_tier;
1068                    }
1069
1070                    // Clients that render the settings form tend to post the whole
1071                    // `subscription_options` bag back, including sub-keys the user never
1072                    // touched. This could result in a translated value inadvertently
1073                    // saved in the database.
1074                    // Get the value from db or the default options populated by filter.
1075                    $current_subscription_options = $this->get_subscription_options_in_user_locale();
1076                    $changed_subscription_options = array();
1077
1078                    foreach ( $filtered_value as $subscription_option_key => $subscription_option_value ) {
1079                        $current_subscription_option = $current_subscription_options[ $subscription_option_key ] ?? null;
1080
1081                        // The incoming value has already been through wp_kses() above, and
1082                        // wp_kses() is not guaranteed to be byte-preserving — it rewrites
1083                        // attribute quoting, and differently across WordPress versions. Put the
1084                        // current value through the same pass so the comparison reflects a real
1085                        // edit rather than a sanitizer rewrite; without this, a default carrying
1086                        // markup (`invitation`) never compares equal and is persisted on every
1087                        // save. Safe to apply to an already-sanitized value: the pass is
1088                        // idempotent.
1089                        if ( is_string( $current_subscription_option ) ) {
1090                            $current_subscription_option = wp_kses(
1091                                $current_subscription_option,
1092                                array(
1093                                    'a' => array(
1094                                        'href' => array(),
1095                                    ),
1096                                )
1097                            );
1098                        }
1099
1100                        // A sub-key the site has never stored reads as unset everywhere this
1101                        // option is consumed, so an empty incoming value for it is not a change.
1102                        if (
1103                            null === $current_subscription_option
1104                            && ( '' === $subscription_option_value || false === $subscription_option_value )
1105                        ) {
1106                            continue;
1107                        }
1108
1109                        if ( $current_subscription_option === $subscription_option_value ) {
1110                            continue;
1111                        }
1112
1113                        $changed_subscription_options[ $subscription_option_key ] = $subscription_option_value;
1114                    }
1115
1116                    if ( empty( $changed_subscription_options ) ) {
1117                        break;
1118                    }
1119
1120                    // Get the value from the database or an empty array.
1121                    $old_subscription_options = get_option( 'subscription_options', array() );
1122                    $new_subscription_options = array_merge( $old_subscription_options, $changed_subscription_options );
1123
1124                    if ( update_option( $key, $new_subscription_options ) ) {
1125                        $updated[ $key ] = $changed_subscription_options;
1126                    }
1127                    break;
1128
1129                case 'woocommerce_onboarding_profile':
1130                    // Allow boolean values but sanitize_text_field everything else.
1131                    $sanitized_value = (array) $value;
1132                    array_walk_recursive(
1133                        $sanitized_value,
1134                        function ( &$value ) {
1135                            if ( ! is_bool( $value ) ) {
1136                                $value = sanitize_text_field( $value );
1137                            }
1138                        }
1139                    );
1140                    if ( update_option( $key, $sanitized_value ) ) {
1141                        $updated[ $key ] = $sanitized_value;
1142                    }
1143                    break;
1144
1145                case 'woocommerce_store_address':
1146                case 'woocommerce_store_address_2':
1147                case 'woocommerce_store_city':
1148                case 'woocommerce_default_country':
1149                case 'woocommerce_store_postcode':
1150                    $sanitized_value = sanitize_text_field( $value );
1151                    if ( update_option( $key, $sanitized_value ) ) {
1152                        $updated[ $key ] = $sanitized_value;
1153                    }
1154                    break;
1155
1156                case 'date_format':
1157                case 'time_format':
1158                    // settings are stored as strings.
1159                    // raw_value is used to help preserve any escaped characters that might exist in the formatted string.
1160                    $sanitized_value = sanitize_text_field( $raw_value );
1161                    if ( update_option( $key, $sanitized_value ) ) {
1162                        $updated[ $key ] = $sanitized_value;
1163                    }
1164                    break;
1165
1166                case 'start_of_week':
1167                    // setting is stored as int in 0-6 range (days of week).
1168                    $coerce_value = (int) $value;
1169                    $limit_value  = ( $coerce_value >= 0 && $coerce_value <= 6 ) ? $coerce_value : 0;
1170                    if ( update_option( $key, $limit_value ) ) {
1171                        $updated[ $key ] = $limit_value;
1172                    }
1173                    break;
1174
1175                case 'site_icon':
1176                    /*
1177                     * settings are stored as deletable numeric (all empty
1178                     * values as delete intent), validated as media image
1179                     */
1180                    if ( empty( $value ) || WPCOM_JSON_API::is_falsy( $value ) ) {
1181                        /**
1182                         * Fallback mechanism to clear a third party site icon setting. Can be used
1183                         * to unset the option when an API request instructs the site to remove the site icon.
1184                         *
1185                         * @module json-api
1186                         *
1187                         * @since 4.10
1188                         */
1189                        if ( delete_option( $key ) || apply_filters( 'rest_api_site_icon_cleared', false ) ) {
1190                            $updated[ $key ] = null;
1191                        }
1192                    } elseif ( is_numeric( $value ) ) {
1193                        $coerce_value = (int) $value;
1194                        if ( wp_attachment_is_image( $coerce_value ) && update_option( $key, $coerce_value ) ) {
1195                            $updated[ $key ] = $coerce_value;
1196                        }
1197                    }
1198                    break;
1199
1200                case Jetpack_SEO_Utils::FRONT_PAGE_META_OPTION:
1201                    if ( ! Jetpack_SEO_Utils::is_enabled_jetpack_seo() && ! Jetpack_SEO_Utils::has_legacy_front_page_meta() ) {
1202                        return new WP_Error( 'unauthorized', __( 'SEO tools are not enabled for this site.', 'jetpack' ), 403 );
1203                    }
1204
1205                    if ( ! is_string( $value ) ) {
1206                        return new WP_Error( 'invalid_input', __( 'Invalid SEO meta description value.', 'jetpack' ), 400 );
1207                    }
1208
1209                    $new_description = Jetpack_SEO_Utils::update_front_page_meta_description( $value );
1210
1211                    if ( ! empty( $new_description ) ) {
1212                        $updated[ $key ] = $new_description;
1213                    }
1214                    break;
1215
1216                case Jetpack_SEO_Titles::TITLE_FORMATS_OPTION:
1217                    if ( ! Jetpack_SEO_Utils::is_enabled_jetpack_seo() ) {
1218                        if ( Jetpack_SEO_Utils::has_legacy_front_page_meta() ) {
1219                            break;
1220                        }
1221                        return new WP_Error( 'unauthorized', __( 'SEO tools are not enabled for this site.', 'jetpack' ), 403 );
1222                    }
1223
1224                    if ( ! Jetpack_SEO_Titles::are_valid_title_formats( $value ) ) {
1225                        return new WP_Error( 'invalid_input', __( 'Invalid SEO title format.', 'jetpack' ), 400 );
1226                    }
1227
1228                    $new_title_formats = Jetpack_SEO_Titles::update_title_formats( $value );
1229
1230                    if ( ! empty( $new_title_formats ) ) {
1231                        $updated[ $key ] = $new_title_formats;
1232                    }
1233                    break;
1234
1235                case 'verification_services_codes':
1236                    $verification_codes = jetpack_verification_validate( $value );
1237
1238                    if ( update_option( 'verification_services_codes', $verification_codes ) ) {
1239                        $updated[ $key ] = $verification_codes;
1240                    }
1241                    break;
1242
1243                case 'wpcom_publish_posts_with_markdown':
1244                case 'wpcom_publish_comments_with_markdown':
1245                    $coerce_value = (bool) $value;
1246                    if ( update_option( $key, $coerce_value ) ) {
1247                        $updated[ $key ] = $coerce_value;
1248                    }
1249                    break;
1250
1251                case 'wpcom_gifting_subscription':
1252                    $coerce_value = (bool) $value;
1253
1254                    /*
1255                     * get_option returns a boolean false if the option doesn't exist, otherwise it always returns
1256                     * a serialized value. Knowing that we can check if the option already exists.
1257                     */
1258                    $gift_toggle = get_option( $key );
1259                    if ( false === $gift_toggle ) {
1260                        // update_option will not create a new option if the initial value is false. So use add_option.
1261                        if ( add_option( $key, $coerce_value ) ) {
1262                            $updated[ $key ] = $coerce_value;
1263                        }
1264                    } elseif ( update_option( $key, $coerce_value ) ) { // If the option already exists use update_option.
1265                        $updated[ $key ] = $coerce_value;
1266                    }
1267                    break;
1268
1269                case 'rss_use_excerpt':
1270                    $sanitized_value = (int) (bool) $value;
1271                    update_option( $key, $sanitized_value );
1272                    $updated[ $key ] = $sanitized_value;
1273                    break;
1274
1275                case 'wpcom_subscription_emails_use_excerpt':
1276                    update_option( 'wpcom_subscription_emails_use_excerpt', (bool) $value );
1277                    $updated[ $key ] = (bool) $value;
1278                    break;
1279
1280                case 'jetpack_subscriptions_reply_to':
1281                    require_once JETPACK__PLUGIN_DIR . 'modules/subscriptions/class-settings.php';
1282                    $to_set_value = Automattic\Jetpack\Modules\Subscriptions\Settings::is_valid_reply_to( $value )
1283                        ? (string) $value
1284                        : Automattic\Jetpack\Modules\Subscriptions\Settings::$default_reply_to;
1285
1286                    if ( update_option( $key, $to_set_value ) ) {
1287                        $updated[ $key ] = $to_set_value;
1288                    }
1289                    break;
1290
1291                case 'jetpack_subscriptions_from_name':
1292                    $sanitized_value = sanitize_text_field( $value );
1293                    if ( update_option( $key, $sanitized_value ) ) {
1294                        $updated[ $key ] = $sanitized_value;
1295                    }
1296                    break;
1297
1298                case 'instant_search_enabled':
1299                    update_option( 'instant_search_enabled', (bool) $value );
1300                    $updated[ $key ] = (bool) $value;
1301                    break;
1302
1303                case 'lang_id':
1304                    /*
1305                     * Due to the fact that locale variants are set in a locale_variant option,
1306                     * changing locale from variant to primary
1307                     * would look like the same lang_id is being saved and update_option would return false,
1308                     * even though the correct options would be set by pre_update_option_lang_id,
1309                     * so we should always return lang_id as updated.
1310                     */
1311                    update_option( 'lang_id', (int) $value );
1312                    $updated[ $key ] = (int) $value;
1313                    break;
1314
1315                case 'wpcom_newsletter_send_default':
1316                    update_option( 'wpcom_newsletter_send_default', (int) (bool) $value );
1317                    $updated[ $key ] = (int) (bool) $value;
1318                    break;
1319
1320                case 'wpcom_featured_image_in_email':
1321                    update_option( 'wpcom_featured_image_in_email', (int) (bool) $value );
1322                    $updated[ $key ] = (int) (bool) $value;
1323                    break;
1324
1325                case Jetpack_Newsletter_Category_Helper::NEWSLETTER_CATEGORIES_OPTION:
1326                    $update_newsletter_categories = Jetpack_Newsletter_Category_Helper::save_category_ids( (array) $value );
1327                    if ( $update_newsletter_categories ) {
1328                        $updated[ $key ] = $update_newsletter_categories;
1329                    }
1330
1331                    break;
1332
1333                case 'wpcom_newsletter_categories_enabled':
1334                    update_option( 'wpcom_newsletter_categories_enabled', (int) (bool) $value );
1335                    $updated[ $key ] = (int) (bool) $value;
1336                    break;
1337
1338                case 'sm_enabled':
1339                    update_option( 'sm_enabled', (int) (bool) $value );
1340                    $updated[ $key ] = (int) (bool) $value;
1341                    break;
1342
1343                case 'jetpack_subscribe_overlay_enabled':
1344                    update_option( 'jetpack_subscribe_overlay_enabled', (int) (bool) $value );
1345                    $updated[ $key ] = (int) (bool) $value;
1346                    break;
1347
1348                case 'jetpack_subscribe_floating_button_enabled':
1349                    update_option( 'jetpack_subscribe_floating_button_enabled', (int) (bool) $value );
1350                    $updated[ $key ] = (int) (bool) $value;
1351                    break;
1352
1353                case 'jetpack_subscriptions_subscribe_post_end_enabled':
1354                    update_option( 'jetpack_subscriptions_subscribe_post_end_enabled', (int) (bool) $value );
1355                    $updated[ $key ] = (int) (bool) $value;
1356                    break;
1357
1358                case 'jetpack_subscriptions_login_navigation_enabled':
1359                    update_option( 'jetpack_subscriptions_login_navigation_enabled', (int) (bool) $value );
1360                    $updated[ $key ] = (int) (bool) $value;
1361                    break;
1362
1363                case 'jetpack_subscriptions_subscribe_navigation_enabled':
1364                    update_option( 'jetpack_subscriptions_subscribe_navigation_enabled', (int) (bool) $value );
1365                    $updated[ $key ] = (int) (bool) $value;
1366                    break;
1367
1368                case 'show_on_front':
1369                    if ( in_array( $value, array( 'page', 'posts' ), true ) && update_option( $key, $value ) ) {
1370                            $updated[ $key ] = $value;
1371                    }
1372                    break;
1373
1374                case 'page_on_front':
1375                case 'page_for_posts':
1376                    if ( $value === '' ) { // empty function is not applicable here because '0' may be a valid page id
1377                        if ( delete_option( $key ) ) {
1378                            $updated[ $key ] = null;
1379                        }
1380
1381                        break;
1382                    }
1383
1384                    if ( ! $this->is_valid_page_id( $value ) ) {
1385                        break;
1386                    }
1387
1388                    $related_option_key   = $key === 'page_on_front' ? 'page_for_posts' : 'page_on_front';
1389                    $related_option_value = get_option( $related_option_key );
1390                    if ( $related_option_value === $value ) {
1391                        // page_on_front and page_for_posts are not allowed to be the same
1392                        break;
1393                    }
1394
1395                    if ( update_option( $key, $value ) ) {
1396                        $updated[ $key ] = $value;
1397                    }
1398
1399                    break;
1400
1401                case 'in_site_migration_flow':
1402                    if ( empty( $value ) ) {
1403                        delete_option( 'in_site_migration_flow' );
1404                        break;
1405                    }
1406
1407                    $migration_flow_whitelist = array(
1408                        'site-migration',
1409                        'migration-signup',
1410                    );
1411
1412                    if ( ! in_array( $value, $migration_flow_whitelist, true ) ) {
1413                        break;
1414                    }
1415
1416                    update_option( 'in_site_migration_flow', $value );
1417                    $updated[ $key ] = $value;
1418                    break;
1419
1420                case 'migration_source_site_domain':
1421                    // If we get an empty value, delete the option
1422                    if ( empty( $value ) ) {
1423                        delete_option( 'migration_source_site_domain' );
1424                        break;
1425                    }
1426
1427                    // If we get a non-url value, don't update the option.
1428                    if ( wp_http_validate_url( $value ) === false ) {
1429                        break;
1430                    }
1431
1432                    update_option( 'migration_source_site_domain', $value );
1433                    $updated[ $key ] = $value;
1434                    break;
1435
1436                case 'is_fully_managed_agency_site':
1437                case 'wpcom_hide_action_bar':
1438                    $coerce_value = (int) (bool) $value;
1439                    if ( update_option( $key, $coerce_value ) ) {
1440                        $updated[ $key ] = (bool) $coerce_value;
1441                    }
1442                    break;
1443
1444                case 'mcp_abilities':
1445                    $result = $this->set_site_mcp_abilities( $value );
1446                    if ( is_wp_error( $result ) ) {
1447                        return $result;
1448                    }
1449                    $updated[ $key ] = $this->get_site_mcp_abilities();
1450                    break;
1451
1452                default:
1453                    // allow future versions of this endpoint to support additional settings keys.
1454                    if ( has_filter( 'site_settings_endpoint_update_' . $key ) ) {
1455                        /**
1456                         * Filter current site setting value to be updated.
1457                         *
1458                         * @module json-api
1459                         *
1460                         * @since 3.9.3
1461                         * @since 13.6 Added the API object parameter.
1462                         *
1463                         * @param mixed $response_item A single site setting value.
1464                         * @param WPCOM_JSON_API_Site_Settings_Endpoint The API object parameter.
1465                         */
1466                        $value = apply_filters( 'site_settings_endpoint_update_' . $key, $value, $this );
1467
1468                        if ( is_wp_error( $value ) ) {
1469                            return $value;
1470                        }
1471
1472                        if ( $value ) {
1473                            $updated[ $key ] = $value;
1474                        }
1475                        break;
1476                    }
1477                    // no worries, we've already whitelisted and casted arguments above.
1478                    if ( update_option( $key, $value ) ) {
1479                        $updated[ $key ] = $value;
1480                    }
1481            }
1482        }
1483
1484        if ( $jetpack_relatedposts_options !== array() ) {
1485            // track new jetpack_relatedposts options against old.
1486            $old_relatedposts_options = Jetpack_Options::get_option( 'relatedposts' );
1487
1488            $jetpack_relatedposts_options_to_save = $old_relatedposts_options;
1489            foreach ( $jetpack_relatedposts_options as $key => $value ) {
1490                $jetpack_relatedposts_options_to_save[ $key ] = $value;
1491            }
1492
1493            if ( Jetpack_Options::update_option( 'relatedposts', $jetpack_relatedposts_options_to_save ) ) {
1494                foreach ( $jetpack_relatedposts_options as $key => $value ) {
1495                    if ( in_array( $key, array( 'show_context', 'show_date' ), true ) ) {
1496                        $has_initialized_option = ! isset( $old_relatedposts_options[ $key ] ) && $value;
1497                        $has_updated_option     = isset( $old_relatedposts_options[ $key ] ) && $value !== $old_relatedposts_options[ $key ];
1498
1499                        if ( $has_initialized_option || $has_updated_option ) {
1500                            $updated[ 'jetpack_relatedposts_' . $key ] = (bool) $value;
1501                        }
1502                    } elseif ( isset( $old_relatedposts_options[ $key ] ) && $value !== $old_relatedposts_options[ $key ] ) {
1503                        $updated[ 'jetpack_relatedposts_' . $key ] = $value;
1504                    }
1505                }
1506            }
1507        }
1508
1509        if ( ! empty( $sharing_options ) && class_exists( 'Sharing_Service' ) ) {
1510            $ss = new Sharing_Service();
1511
1512            /*
1513             * Merge current values with updated, since Sharing_Service expects
1514             * all values to be included when updating
1515             */
1516            $current_sharing_options = $ss->get_global_options();
1517            foreach ( $current_sharing_options as $key => $val ) {
1518                if ( ! isset( $sharing_options[ $key ] ) ) {
1519                    $sharing_options[ $key ] = $val;
1520                }
1521            }
1522
1523            $updated_social_options = $ss->set_global_options( $sharing_options );
1524
1525            if ( isset( $input['sharing_button_style'] ) ) {
1526                $updated['sharing_button_style'] = (string) $updated_social_options['button_style'];
1527            }
1528            if ( isset( $input['sharing_label'] ) ) {
1529                // Sharing_Service won't report label as updated if set to default.
1530                $updated['sharing_label'] = (string) $sharing_options['sharing_label'];
1531            }
1532            if ( isset( $input['sharing_show'] ) ) {
1533                $updated['sharing_show'] = (array) $updated_social_options['show'];
1534            }
1535            if ( isset( $input['sharing_open_links'] ) ) {
1536                $updated['sharing_open_links'] = (string) $updated_social_options['open_links'];
1537            }
1538        }
1539
1540        return array(
1541            'updated' => $updated,
1542        );
1543    }
1544
1545    /**
1546     * Get the string value of the jetpack_subscriptions_reply_to option.
1547     * When the option is not set, it will retun 'no-reply'.
1548     *
1549     * @return string
1550     */
1551    protected function get_subscriptions_reply_to_option() {
1552        $reply_to = get_option( 'jetpack_subscriptions_reply_to', null );
1553        if ( $reply_to === null ) {
1554            require_once JETPACK__PLUGIN_DIR . 'modules/subscriptions/class-settings.php';
1555            return Automattic\Jetpack\Modules\Subscriptions\Settings::$default_reply_to;
1556        }
1557        return $reply_to;
1558    }
1559
1560    /**
1561     * Check if the given value is a valid page ID for the current site.
1562     *
1563     * @param mixed $value The value to check.
1564     * @return bool True if the value is a valid page ID for the current site, false otherwise.
1565     */
1566    protected function is_valid_page_id( $value ) {
1567        $all_page_ids = get_all_page_ids();
1568
1569        $valid_page_id = false;
1570        foreach ( $all_page_ids as $page_id ) {
1571            if ( $page_id === (string) $value ) {
1572                $valid_page_id = true;
1573                break;
1574            }
1575        }
1576
1577        return $valid_page_id;
1578    }
1579
1580    /**
1581     * Get the value of the highlander_comment_form_prompt option.
1582     * When the option is not set, it will return the default value.
1583     *
1584     * @return string
1585     */
1586    protected function get_highlander_comment_form_prompt_option() {
1587        $highlander_comment_form_prompt_option = get_option( 'highlander_comment_form_prompt' );
1588
1589        if ( empty( $highlander_comment_form_prompt_option ) ) {
1590            return (string) __( 'Leave a comment', 'jetpack' );
1591        }
1592
1593        return (string) $highlander_comment_form_prompt_option;
1594    }
1595}