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12
1<?php
2/**
3 * Primary class file for the Jetpack Backup plugin.
4 *
5 * @package automattic/jetpack-backup-plugin
6 */
7
8// After changing this file, consider increasing the version number ("VXXX") in all the files using this namespace, in
9// order to ensure that the specific version of this file always get loaded. Otherwise, Jetpack autoloader might decide
10// to load an older/newer version of the class (if, for example, both the standalone and bundled versions of the plugin
11// are installed, or in some other cases).
12namespace Automattic\Jetpack\Backup\V0005;
13
14if ( ! defined( 'ABSPATH' ) ) {
15    exit( 0 );
16}
17
18use Automattic\Jetpack\Admin_UI\Admin_Menu;
19use Automattic\Jetpack\Assets;
20use Automattic\Jetpack\Backup\V0005\Initial_State as Backup_Initial_State;
21use Automattic\Jetpack\Config;
22use Automattic\Jetpack\Connection\Client;
23use Automattic\Jetpack\Connection\Initial_State as Connection_Initial_State;
24use Automattic\Jetpack\Connection\Manager as Connection_Manager;
25use Automattic\Jetpack\Connection\Rest_Authentication as Connection_Rest_Authentication;
26use Automattic\Jetpack\My_Jetpack\Wpcom_Products;
27use Automattic\Jetpack\Status;
28use Automattic\Jetpack\Terms_Of_Service;
29use Automattic\Jetpack\Tracking;
30use Jetpack_Options;
31use WP_Error;
32use WP_REST_Server;
33use function add_action;
34use function add_filter;
35use function did_action;
36use function do_action;
37use function esc_url_raw;
38use function get_option;
39use function is_wp_error;
40use function rest_ensure_response;
41use function update_option;
42use function wp_add_inline_script;
43use function wp_remote_get;
44use function wp_remote_retrieve_body;
45use function wp_remote_retrieve_response_code;
46
47/**
48 * Class Jetpack_Backup
49 */
50class Jetpack_Backup {
51
52    /**
53     * Slug.
54     *
55     * @var string
56     */
57    const JETPACK_BACKUP_SLUG = 'jetpack-backup';
58
59    /**
60     * Backup name.
61     *
62     * @var string
63     */
64    const JETPACK_BACKUP_NAME = 'Jetpack Backup';
65
66    /**
67     * Backup URL.
68     *
69     * @var string
70     */
71    const JETPACK_BACKUP_URI = 'https://jetpack.com/jetpack-backup';
72
73    /**
74     * Promoted product.
75     *
76     * @var string
77     */
78    const JETPACK_BACKUP_PROMOTED_PRODUCT = 'jetpack_backup_t1_yearly';
79
80    /**
81     * Licenses product ID.
82     *
83     * @var string
84     */
85    const JETPACK_BACKUP_PRODUCT_IDS = array(
86        2014, // JETPACK_COMPLETE.
87        2015, // JETPACK_COMPLETE_MONTHLY.
88        2016, // JETPACK_SECURITY_TIER_1_YEARLY.
89        2017, // JETPACK_SECURITY_TIER_1_MONTHLY.
90        2019, // JETPACK_SECURITY_TIER_2_YEARLY.
91        2020, // JETPACK_SECURITY_TIER_2_MONTHLY.
92        2112, // JETPACK_BACKUP_TIER_1_YEARLY.
93        2113, // JETPACK_BACKUP_TIER_1_MONTHLY.
94        2114, // JETPACK_BACKUP_TIER_2_YEARLY.
95        2115, // JETPACK_BACKUP_TIER_2_MONTHLY.
96    );
97
98    /**
99     * Jetpack Backup DB version.
100     *
101     * @var string
102     */
103    const JETPACK_BACKUP_DB_VERSION = '2';
104
105    /**
106     * Filter name that gates the wp-build–based dashboard.
107     *
108     * When this filter returns true, "Jetpack > Backup" renders the new
109     * wp-build dashboard instead of the legacy React app.
110     */
111    const MODERNIZATION_FILTER = 'rsm_jetpack_ui_modernization_backup';
112
113    /**
114     * Constructor.
115     */
116    public static function initialize() {
117        if ( did_action( 'jetpack_backup_initialized' ) ) {
118            return;
119        }
120
121        // Set up the REST authentication hooks.
122        Connection_Rest_Authentication::init();
123
124        add_action( 'rest_api_init', array( __CLASS__, 'register_rest_routes' ) );
125        add_action( 'rest_api_init', array( \Automattic\Jetpack\Backup\V0005\REST\Rest_Controller::class, 'register_routes' ) );
126
127        add_action( 'admin_menu', array( __CLASS__, 'maybe_load_wp_build' ), 1 );
128        add_action( 'admin_menu', array( __CLASS__, 'add_wp_admin_submenu' ), 1 ); // Akismet uses 4, so we need to use 1 to ensure both menus are added when only they exist.
129
130        // Init Jetpack packages.
131        add_action(
132            'plugins_loaded',
133            function () {
134                $config = new Config();
135                // Connection package.
136                $config->ensure(
137                    'connection',
138                    array(
139                        'slug'     => self::JETPACK_BACKUP_SLUG,
140                        'name'     => self::JETPACK_BACKUP_NAME,
141                        'url_info' => self::JETPACK_BACKUP_URI,
142                    )
143                );
144                // Sync package.
145                $config->ensure( 'sync' );
146
147                // Identity crisis package.
148                $config->ensure( 'identity_crisis' );
149            },
150            1
151        );
152
153        add_action( 'plugins_loaded', array( __CLASS__, 'maybe_upgrade_db' ), 20 );
154
155        add_filter( 'jetpack_connection_user_has_license', array( __CLASS__, 'jetpack_check_user_licenses' ), 10, 3 );
156
157        // Jetpack Backup abilities are registered from `actions.php` at package
158        // autoload time so the surface is available in every consumer that
159        // loads this package (both the standalone Backup plugin and the
160        // Jetpack plugin), not only when `Jetpack_Backup::initialize()` runs.
161
162        /**
163         * Runs right after the Jetpack Backup package is initialized.
164         *
165         * @since 1.3.0
166         */
167        do_action( 'jetpack_backup_initialized' );
168    }
169
170    /**
171     * The page to be added to submenu
172     */
173    public static function add_wp_admin_submenu() {
174        $is_modernized = self::is_modernized();
175        $callback      = $is_modernized && function_exists( 'jetpack_backup_jetpack_backup_dashboard_wp_admin_render_page' )
176            ? 'jetpack_backup_jetpack_backup_dashboard_wp_admin_render_page'
177            : array( __CLASS__, 'plugin_settings_page' );
178
179        // Gate the "VaultPress Backup" relabel behind the modernization
180        // filter so the flag-off path stays byte-identical to trunk.
181        $page_title = $is_modernized ? 'Jetpack VaultPress Backup' : 'Jetpack Backup';
182        $menu_title = $is_modernized ? 'VaultPress Backup' : 'Backup'; // Product name, do not translate.
183
184        $page_suffix = Admin_Menu::add_menu(
185            $page_title,
186            $menu_title,
187            'manage_options',
188            self::JETPACK_BACKUP_SLUG,
189            $callback,
190            7
191        );
192
193        if ( $page_suffix ) {
194            add_action( 'load-' . $page_suffix, array( __CLASS__, 'admin_init' ) );
195        }
196    }
197
198    /**
199     * Initialize the admin resources.
200     */
201    public static function admin_init() {
202        add_action( 'admin_enqueue_scripts', array( __CLASS__, 'enqueue_admin_scripts' ) );
203
204        if ( self::is_modernized() ) {
205            // The modernized Backup overview is a focused, full-screen product
206            // surface. Suppress JITMs and other core/plugin admin notices so they
207            // don't reflow on top of the dual-pane layout. Mirrors how Jetpack
208            // Forms handles its dashboard page
209            // (`plugins/forms/src/dashboard/class-dashboard.php`).
210            remove_all_actions( 'admin_notices' );
211            remove_all_actions( 'all_admin_notices' );
212        }
213    }
214
215    /**
216     * Checks current version against version in code and run upgrades if we are running a new version
217     */
218    public static function maybe_upgrade_db() {
219        $current_db_version = get_option( 'jetpack_backup_db_version' );
220        if ( version_compare( $current_db_version, self::JETPACK_BACKUP_DB_VERSION, '<' ) ) {
221            update_option( 'jetpack_backup_db_version', self::JETPACK_BACKUP_DB_VERSION );
222            Jetpack_Backup_Upgrades::upgrade();
223        }
224    }
225
226    /**
227     * Returns whether we are in condition to track to use
228     * Analytics functionality like Tracks, MC, or GA.
229     */
230    public static function can_use_analytics() {
231        $status     = new Status();
232        $connection = new Connection_Manager( 'jetpack-backup' );
233        $tracking   = new Tracking( 'jetpack', $connection );
234
235        return $tracking->should_enable_tracking( new Terms_Of_Service(), $status );
236    }
237
238    /**
239     * Enqueue plugin admin scripts and styles.
240     */
241    public static function enqueue_admin_scripts() {
242        // This callback is registered via `load-{$page_suffix}` in `add_wp_admin_submenu()`,
243        // so it only fires on the Backup admin page — no need to re-check the page here.
244        if ( self::is_modernized() ) {
245            // The i18n loader is registered on every admin page by jetpack-assets but
246            // only enqueued when depended on; the esbuild bundles don't pull it in.
247            // Enqueue it here, before the early return, so the wp-build dashboard's
248            // init module can download its JS translation catalogs.
249            if ( wp_script_is( 'wp-jp-i18n-loader', 'registered' ) ) {
250                wp_enqueue_script( 'wp-jp-i18n-loader' );
251            }
252
253            // wp-build manages its own enqueue pipeline. The legacy script,
254            // initial state, and tracking are intentionally skipped for the
255            // wp-build dashboard.
256            return;
257        }
258
259        Assets::register_script(
260            'jetpack-backup',
261            '../build/index.js',
262            __FILE__,
263            array(
264                'in_footer'  => true,
265                'textdomain' => 'jetpack-backup-pkg',
266            )
267        );
268        Assets::enqueue_script( 'jetpack-backup' );
269        // Initial JS state including JP Connection data.
270        wp_add_inline_script( 'jetpack-backup', self::get_initial_state(), 'before' );
271        Connection_Initial_State::render_script( 'jetpack-backup' );
272
273        // Load script for analytics.
274        if ( self::can_use_analytics() ) {
275            Tracking::register_tracks_functions_scripts( true );
276        }
277    }
278
279    /**
280     * Main plugin settings page.
281     */
282    public static function plugin_settings_page() {
283        ?>
284            <div id="jetpack-backup-root"></div>
285        <?php
286    }
287
288    /**
289     * Return the rendered initial state JavaScript code.
290     *
291     * @return string
292     */
293    private static function get_initial_state() {
294        return ( new Backup_Initial_State() )->render();
295    }
296
297    /**
298     * Register REST API
299     */
300    public static function register_rest_routes() {
301
302        // Get information on most recent 10 backups.
303        register_rest_route(
304            'jetpack/v4',
305            '/backups',
306            array(
307                'methods'             => WP_REST_Server::READABLE,
308                'callback'            => __CLASS__ . '::get_recent_backups',
309                'permission_callback' => __CLASS__ . '::backups_permissions_callback',
310            )
311        );
312
313        // Get site backup/scan/anti-spam capabilities.
314        register_rest_route(
315            'jetpack/v4',
316            '/backup-capabilities',
317            array(
318                'methods'             => WP_REST_Server::READABLE,
319                'callback'            => __CLASS__ . '::get_backup_capabilities',
320                'permission_callback' => __CLASS__ . '::backups_permissions_callback',
321            )
322        );
323
324        // Get whether the site has a backup plan
325        register_rest_route(
326            'jetpack/v4',
327            '/has-backup-plan',
328            array(
329                'methods'             => WP_REST_Server::READABLE,
330                'callback'            => __CLASS__ . '::has_backup_plan',
331                'permission_callback' => __CLASS__ . '::backups_permissions_callback',
332            )
333        );
334
335        // Get site rewind data.
336        register_rest_route(
337            'jetpack/v4',
338            '/restores',
339            array(
340                'methods'             => WP_REST_Server::READABLE,
341                'callback'            => __CLASS__ . '::get_recent_restores',
342                'permission_callback' => __CLASS__ . '::backups_permissions_callback',
343            )
344        );
345
346        // Get information on site products.
347        // Backup plugin version of /site/purchases from JP plugin.
348        // Revert once this route and MyPlan component are extracted to a common package.
349        register_rest_route(
350            'jetpack/v4',
351            '/site/current-purchases',
352            array(
353                'methods'             => WP_REST_Server::READABLE,
354                'callback'            => __CLASS__ . '::get_site_current_purchases',
355                'permission_callback' => __CLASS__ . '::backups_permissions_callback',
356            )
357        );
358
359        // Get currently promoted product from the product's endpoint.
360            register_rest_route(
361                'jetpack/v4',
362                '/backup-promoted-product-info',
363                array(
364                    'methods'             => WP_REST_Server::READABLE,
365                    'callback'            => __CLASS__ . '::get_backup_promoted_product_info',
366                    'permission_callback' => __CLASS__ . '::backups_permissions_callback',
367                )
368            );
369
370        // Get and set value of dismissed_backup_review_request option
371        register_rest_route(
372            'jetpack/v4',
373            '/site/dismissed-review-request',
374            array(
375                'methods'             => WP_REST_Server::EDITABLE,
376                'callback'            => __CLASS__ . '::manage_dismissed_backup_review_request',
377                'permission_callback' => __CLASS__ . '::backups_permissions_callback',
378                'args'                => array(
379                    'option_name'    => array(
380                        'required' => true,
381                        'type'     => 'string',
382                    ),
383                    'should_dismiss' => array(
384                        'required' => true,
385                        'type'     => 'boolean',
386                    ),
387                ),
388            )
389        );
390
391        // Get site size
392        register_rest_route(
393            'jetpack/v4',
394            '/site/backup/size',
395            array(
396                'methods'             => WP_REST_Server::READABLE,
397                'callback'            => __CLASS__ . '::get_site_backup_size',
398                'permission_callback' => __CLASS__ . '::backups_permissions_callback',
399            )
400        );
401
402        // Get backup schedule time
403        register_rest_route(
404            'jetpack/v4',
405            '/site/backup/schedule',
406            array(
407                'methods'             => WP_REST_Server::READABLE,
408                'callback'            => __CLASS__ . '::get_site_backup_schedule_time',
409                'permission_callback' => __CLASS__ . '::backups_permissions_callback',
410            )
411        );
412
413        // Get site policies
414        register_rest_route(
415            'jetpack/v4',
416            '/site/backup/policies',
417            array(
418                'methods'             => WP_REST_Server::READABLE,
419                'callback'            => __CLASS__ . '::get_site_backup_policies',
420                'permission_callback' => __CLASS__ . '::backups_permissions_callback',
421            )
422        );
423
424        // Get site add-on offer
425        register_rest_route(
426            'jetpack/v4',
427            '/site/backup/addon-offer',
428            array(
429                'methods'             => WP_REST_Server::READABLE,
430                'callback'            => __CLASS__ . '::get_site_backup_addon_offer',
431                'permission_callback' => __CLASS__ . '::backups_permissions_callback',
432                'args'                => array(
433                    'storage_size'  => array(
434                        'required' => true,
435                        'type'     => 'numeric',
436                    ),
437                    'storage_limit' => array(
438                        'required' => true,
439                        'type'     => 'numeric',
440                    ),
441                ),
442            )
443        );
444
445        // Enqueue a new backup
446        register_rest_route(
447            'jetpack/v4',
448            '/site/backup/enqueue',
449            array(
450                'methods'             => WP_REST_Server::CREATABLE,
451                'callback'            => __CLASS__ . '::enqueue_backup',
452                'permission_callback' => __CLASS__ . '::backups_permissions_callback',
453            )
454        );
455    }
456
457    /**
458     * The backup calls should only occur from a signed in admin user
459     *
460     * @access public
461     * @static
462     *
463     * @return true|WP_Error
464     */
465    public static function backups_permissions_callback() {
466        return current_user_can( 'manage_options' );
467    }
468
469    /**
470     * Get information about recent backups
471     *
472     * @access public
473     * @static
474     *
475     * @return array An array of recent backups
476     */
477    public static function get_recent_backups() {
478        $blog_id = Jetpack_Options::get_option( 'id' );
479
480        $response = Client::wpcom_json_api_request_as_blog(
481            '/sites/' . $blog_id . '/rewind/backups',
482            'v2',
483            array(),
484            null,
485            'wpcom'
486        );
487
488        if ( 200 !== wp_remote_retrieve_response_code( $response ) ) {
489            return null;
490        }
491
492        return rest_ensure_response(
493            json_decode( $response['body'], true )
494        );
495    }
496
497    /**
498     * Hits the wpcom api to check rewind status.
499     *
500     * @return Object|WP_Error
501     */
502    private static function get_rewind_state_from_wpcom() {
503        static $status = null;
504
505        if ( $status !== null ) {
506            return $status;
507        }
508
509        $site_id = Jetpack_Options::get_option( 'id' );
510
511        $response = Client::wpcom_json_api_request_as_blog( sprintf( '/sites/%d/rewind', $site_id ) . '?force=wpcom', '2', array( 'timeout' => 2 ), null, 'wpcom' );
512
513        if ( 200 !== wp_remote_retrieve_response_code( $response ) ) {
514            return new WP_Error( 'rewind_state_fetch_failed' );
515        }
516
517        $body   = wp_remote_retrieve_body( $response );
518        $status = json_decode( $body );
519        return $status;
520    }
521
522    /**
523     * Checks whether the current plan (or purchases) of the site already supports the product
524     *
525     * @return boolean
526     */
527    public static function has_backup_plan() {
528        $rewind_data = static::get_rewind_state_from_wpcom();
529        if ( is_wp_error( $rewind_data ) ) {
530            return false;
531        }
532        return is_object( $rewind_data ) && isset( $rewind_data->state ) && 'unavailable' !== $rewind_data->state;
533    }
534
535    /**
536     * Get an array of backup/scan/anti-spam site capabilities
537     *
538     * @access public
539     * @static
540     *
541     * @return array An array of capabilities
542     */
543    public static function get_backup_capabilities() {
544        $blog_id = Jetpack_Options::get_option( 'id' );
545
546        $response = Client::wpcom_json_api_request_as_user(
547            '/sites/' . $blog_id . '/rewind/capabilities',
548            'v2',
549            array(),
550            null,
551            'wpcom'
552        );
553
554        if ( 200 !== wp_remote_retrieve_response_code( $response ) ) {
555            return null;
556        }
557
558        return rest_ensure_response(
559            json_decode( $response['body'], true )
560        );
561    }
562
563    /**
564     * Get information about recent restores
565     *
566     * @access public
567     * @static
568     *
569     * @return array An array of recent restores
570     */
571    public static function get_recent_restores() {
572        $blog_id  = Jetpack_Options::get_option( 'id' );
573        $response = Client::wpcom_json_api_request_as_blog(
574            '/sites/' . $blog_id . '/rewind/restores',
575            'v2',
576            array(),
577            null,
578            'wpcom'
579        );
580
581        if ( 200 !== wp_remote_retrieve_response_code( $response ) ) {
582            return null;
583        }
584
585        return rest_ensure_response(
586            json_decode( $response['body'], true )
587        );
588    }
589
590    /**
591     * Query backup-completion events from the wpcom activity-log via the
592     * general `/sites/<id>/activity` endpoint with the action filter pinned
593     * to backup-completion event names. This endpoint paginates real-ly
594     * (Elasticsearch `from` offset under the hood) — the `/activity/rewindable`
595     * sibling looks like a more natural fit but hardcodes `page: 1,
596     * totalPages: 1` and ignores the `page` parameter.
597     *
598     * Auth: signs as user. The endpoint gates on the requesting WP user
599     * being an administrator of the blog (see
600     * sites-activity.php::readable_permission_check); blog-level tokens
601     * return 401.
602     *
603     * Returned shape (success): a W3C ActivityStreams envelope:
604     *   {
605     *     "@context": ..., "type": "OrderedCollection", "totalItems": int,
606     *     "page": int, "totalPages": int, "itemsPerPage": int,
607     *     "orderedItems": [ <event>, ... ]
608     *   }
609     * Each event has at least `published`, `rewind_id`, `is_rewindable`,
610     * `name`, `status`, `summary`.
611     *
612     * @param array $args Query args passed through to wpcom. Supported keys:
613     *                    `after` (ISO 8601), `before` (ISO 8601), `on` (ISO 8601),
614     *                    `date_range`, `number` (max 1000), `page` (1-based),
615     *                    `sort_order` ('asc'|'desc'). Any `action` key is
616     *                    overridden with the curated backup-completion list.
617     * @return array|\WP_REST_Response|null
618     */
619    public static function list_backup_events( array $args = array() ) {
620        $blog_id = Jetpack_Options::get_option( 'id' );
621
622        // Curated set of activity actions that represent "a backup completed".
623        // Mirrors `WPCOM_REST_API_V2_Endpoint_Site_Activity::$backup_action_names`.
624        // Pinned here (and overriding any caller-supplied `action`) so the
625        // helper is always scoped to backups regardless of what the caller passes.
626        $args['action'] = array(
627            'backup_complete_full',
628            'backup_complete_initial',
629            'backup_only_complete_full',
630            'backup_only_complete_initial',
631            'rewind__backup_complete_full',
632            'rewind__backup_complete_initial',
633            'rewind__backup_only_complete_full',
634            'rewind__backup_only_complete_initial',
635        );
636
637        $path = '/sites/' . (int) $blog_id . '/activity?' . http_build_query( $args );
638
639        $response = Client::wpcom_json_api_request_as_user(
640            $path,
641            'v2',
642            array(),
643            null,
644            'wpcom'
645        );
646
647        if ( 200 !== wp_remote_retrieve_response_code( $response ) ) {
648            return null;
649        }
650
651        return rest_ensure_response(
652            json_decode( $response['body'], true )
653        );
654    }
655
656    /**
657     * Gets information about the currently promoted backup product.
658     *
659     * @return string|WP_Error A JSON object of the current backup product being promoted if the request was successful, or a WP_Error otherwise.
660     */
661    public static function get_backup_promoted_product_info() {
662        $request_url   = 'https://public-api.wordpress.com/rest/v1.1/products?locale=' . get_user_locale() . '&type=jetpack';
663        $wpcom_request = wp_remote_get( esc_url_raw( $request_url ) );
664        $response_code = wp_remote_retrieve_response_code( $wpcom_request );
665        if ( 200 === $response_code ) {
666            $products = json_decode( wp_remote_retrieve_body( $wpcom_request ) );
667            return $products->{self::JETPACK_BACKUP_PROMOTED_PRODUCT};
668        } else {
669            // Something went wrong so we'll just return the response without caching.
670            return new WP_Error(
671                'failed_to_fetch_data',
672                esc_html__( 'Unable to fetch the requested data.', 'jetpack-backup-pkg' ),
673                array(
674                    'status'  => $response_code,
675                    'request' => $wpcom_request,
676                )
677            );
678        }
679    }
680
681    /**
682     * Check for user licenses.
683     *
684     * @param boolean $has_license If the user already has a license found.
685     * @param array   $licenses List of unattached licenses belonging to the user.
686     * @param string  $plugin_slug The plugin that initiated the flow.
687     *
688     * @return boolean
689     */
690    public static function jetpack_check_user_licenses( $has_license, $licenses, $plugin_slug ) {
691        if ( $plugin_slug !== static::JETPACK_BACKUP_SLUG || $has_license ) {
692            return $has_license;
693        }
694
695        $license_found = false;
696
697        foreach ( $licenses as $license ) {
698            if ( in_array( $license->product_id, static::JETPACK_BACKUP_PRODUCT_IDS, true ) ) {
699                $license_found = true;
700                break;
701            }
702        }
703
704        // Checking for existing backup plan is costly, so only check if there's an appropriate license.
705        return $license_found && ! static::has_backup_plan();
706    }
707
708    /**
709     * Returns the result of `/upgrades` endpoint call.
710     *
711     * @return array of site purchases.
712     */
713    public static function get_site_current_purchases() {
714
715        $request  = sprintf( '/upgrades?site=%d', Jetpack_Options::get_option( 'id' ) );
716        $response = Client::wpcom_json_api_request_as_blog( $request, '1.2' );
717
718        // Bail if there was an error or malformed response.
719        if ( is_wp_error( $response ) || ! is_array( $response ) || ! isset( $response['body'] ) ) {
720            return self::get_failed_fetch_error();
721        }
722
723        if ( 200 !== (int) wp_remote_retrieve_response_code( $response ) ) {
724            return self::get_failed_fetch_error();
725        }
726
727        return rest_ensure_response(
728            json_decode( $response['body'], true )
729        );
730    }
731
732    /**
733     * Set value of the dismissed_backup_review_request Jetack option.
734     * Get value if should_dismiss is false
735     *
736     * @access public
737     * @static
738     * @param array $request arguments should_dismiss and option_name.
739     * @return bool value of option if value is requested | updated or not if value is updated.
740     */
741    public static function manage_dismissed_backup_review_request( $request ) {
742
743        if ( ! $request['should_dismiss'] ) {
744
745            return rest_ensure_response(
746                Jetpack_Options::get_option( 'dismissed_backup_review_' . $request['option_name'] )
747            );
748        }
749
750        return Jetpack_Options::update_option( 'dismissed_backup_review_' . $request['option_name'], true );
751    }
752
753    /**
754     * Get site storage size
755     *
756     * @return string|WP_Error A JSON object with the site storage size if the request was successful, or a WP_Error otherwise.
757     */
758    public static function get_site_backup_size() {
759        $blog_id = Jetpack_Options::get_option( 'id' );
760
761        $response = Client::wpcom_json_api_request_as_user(
762            '/sites/' . $blog_id . '/rewind/size?force=wpcom',
763            'v2',
764            array(),
765            null,
766            'wpcom'
767        );
768
769        if ( 200 !== wp_remote_retrieve_response_code( $response ) ) {
770            return null;
771        }
772
773        return rest_ensure_response(
774            json_decode( $response['body'], true )
775        );
776    }
777
778    /**
779     * Get site policies from WPCOM. It includes the storage limit and activity log limit, if apply.
780     *
781     * @return string|WP_Error A JSON object with the site storage policies if the request was successful,
782     *                         or a WP_Error otherwise.
783     */
784    public static function get_site_backup_policies() {
785        $blog_id = Jetpack_Options::get_option( 'id' );
786
787        $response = Client::wpcom_json_api_request_as_user(
788            '/sites/' . $blog_id . '/rewind/policies?force=wpcom',
789            'v2',
790            array(),
791            null,
792            'wpcom'
793        );
794
795        if ( 200 !== wp_remote_retrieve_response_code( $response ) ) {
796            return null;
797        }
798
799        return rest_ensure_response(
800            json_decode( $response['body'], true )
801        );
802    }
803
804    /**
805     * Get suggested storage addon based on storage usage
806     *
807     * @param int $bytes_used      Storage used.
808     * @param int $bytes_available Storage limit.
809     * @return string Suggested addon storage slug
810     */
811    public static function get_storage_addon_upsell_slug( $bytes_used, $bytes_available ) {
812        $bytes_10gb  = 10 * 1024 * 1024 * 1024; // 10GB in bytes
813        $bytes_100gb = 100 * 1024 * 1024 * 1024; // 100GB in bytes
814        $bytes_1tb   = 1024 * 1024 * 1024 * 1024; // 1TB in bytes
815
816        $upsell_products = array(
817            $bytes_10gb  => 'jetpack_backup_addon_storage_10gb_monthly',
818            $bytes_100gb => 'jetpack_backup_addon_storage_100gb_monthly',
819            $bytes_1tb   => 'jetpack_backup_addon_storage_1tb_monthly',
820        );
821
822        // If usage has crossed over the storage limit, then dynamically calculate the upgrade option
823        if ( $bytes_used > $bytes_available ) {
824            $additional_bytes_used = $bytes_used - $bytes_available;
825
826            // Add aditional 25% buffer
827            $additional_bytes_needed = $additional_bytes_used + $additional_bytes_used * 0.25;
828
829            // Since 1TB is our max upgrade but the additional storage needed is greater than 1TB, then just return 1TB
830            if ( $additional_bytes_needed > $bytes_1tb ) {
831                return $upsell_products[ $bytes_1tb ];
832            }
833
834            $matched_bytes = $bytes_10gb;
835            foreach ( $upsell_products as $bytes => $product ) {
836                if ( $bytes > $additional_bytes_needed ) {
837                    $matched_bytes = $bytes;
838                    break;
839                }
840            }
841
842            return $upsell_products[ $matched_bytes ];
843        }
844
845        // For 1 TB we are going to offer 1 TB by default
846        if ( $bytes_1tb === $bytes_available ) {
847            return $upsell_products[ $bytes_1tb ];
848        }
849
850        // Otherwise, we are going to offer 10 GB
851        return $upsell_products[ $bytes_10gb ];
852    }
853
854    /**
855     * Get the best addon offer for this site, including pricing details
856     *
857     * @param \WP_REST_Request $request Object including storage usage.
858     *
859     * @return string|WP_Error A JSON object with the suggested storage addon details if the request was successful,
860     *                         or a WP_Error otherwise.
861     */
862    public static function get_site_backup_addon_offer( $request ) {
863        $suggested_addon = self::get_storage_addon_upsell_slug(
864            $request['storage_size'],
865            $request['storage_limit']
866        );
867
868        $addons_size_text_map = array(
869            'jetpack_backup_addon_storage_10gb_monthly'  => '10GB',
870            'jetpack_backup_addon_storage_100gb_monthly' => '100GB',
871            'jetpack_backup_addon_storage_1tb_monthly'   => '1TB',
872        );
873
874        // Fetch addon storage price information
875        $pricing_info = Wpcom_Products::get_product_pricing( $suggested_addon );
876
877        // Response
878        $response = array(
879            'slug'      => $suggested_addon,
880            'size_text' => $addons_size_text_map[ $suggested_addon ],
881            'pricing'   => $pricing_info,
882        );
883
884        return rest_ensure_response( $response );
885    }
886
887    /**
888     * Enqueue a new backup on demand
889     *
890     * @return string|WP_Error A JSON object with `success` if the request was successful,
891     * or a WP_Error otherwise.
892     */
893    public static function enqueue_backup() {
894        $blog_id  = Jetpack_Options::get_option( 'id' );
895        $endpoint = sprintf( '/sites/%d/rewind/backups/enqueue', $blog_id );
896
897        $response = Client::wpcom_json_api_request_as_user(
898            $endpoint,
899            'v2',
900            array(
901                'method' => 'POST',
902            ),
903            null,
904            'wpcom'
905        );
906
907        if ( 200 !== wp_remote_retrieve_response_code( $response ) ) {
908            return null;
909        }
910
911        return rest_ensure_response(
912            json_decode( $response['body'], true )
913        );
914    }
915
916    /**
917     * Get site backup schedule time
918     *
919     * @return string|WP_Error A JSON object with the backup schedule time if the request was successful, or a WP_Error otherwise.
920     */
921    public static function get_site_backup_schedule_time() {
922        $blog_id = Jetpack_Options::get_option( 'id' );
923
924        $response = Client::wpcom_json_api_request_as_user(
925            '/sites/' . $blog_id . '/rewind/scheduled',
926            'v2',
927            array(),
928            null,
929            'wpcom'
930        );
931
932        if ( 200 !== wp_remote_retrieve_response_code( $response ) ) {
933            return null;
934        }
935
936        return rest_ensure_response(
937            json_decode( $response['body'], true )
938        );
939    }
940
941    /**
942     * Removes plugin from the connection manager
943     * If it's the last plugin using the connection, the site will be disconnected.
944     *
945     * @access public
946     * @static
947     */
948    public static function plugin_deactivation() {
949        $manager = new Connection_Manager( 'jetpack-backup' );
950        $manager->remove_connection();
951    }
952
953    /**
954     * Load wp-build when modernization is enabled on the Backup admin page.
955     *
956     * @return void
957     */
958    public static function maybe_load_wp_build() {
959        if ( ! self::is_modernized() || ! self::is_backup_admin_request() ) {
960            return;
961        }
962
963        self::load_wp_build();
964
965        // wp-build registers standalone modules (e.g. the init module) on
966        // wp_default_scripts, which has already fired by admin_menu. Register them
967        // directly so the init module makes it into the import map.
968        if ( function_exists( 'jetpack_backup_register_script_modules' ) ) {
969            jetpack_backup_register_script_modules(); // @phan-suppress-current-line PhanUndeclaredFunction -- Checked with function_exists(); defined in the generated build/modules.php, which Phan excludes.
970        }
971
972        add_action( 'current_screen', array( __CLASS__, 'alias_screen_id_for_wp_build' ) );
973        add_action( 'admin_print_scripts', array( __CLASS__, 'render_connection_initial_state' ), 1 );
974    }
975
976    /**
977     * Emit `window.JP_CONNECTION_INITIAL_STATE` inline on the modernized
978     * Backup admin page.
979     *
980     * The modernized enqueue path short-circuits before the legacy
981     * `Connection_Initial_State::render_script()` call, so without this
982     * the React `<Gates>` component never sees the connection state and
983     * sits on its loading skeleton forever. We emit the same JS payload
984     * the legacy path emits, just outside of a registered script handle
985     * (wp-build's handles aren't reliable here, and the global is
986     * page-scoped — any tag setting it works).
987     *
988     * @return void
989     */
990    public static function render_connection_initial_state() {
991        echo '<script id="jetpack-backup-connection-initial-state">'
992            . Connection_Initial_State::render() // phpcs:ignore WordPress.Security.EscapeOutput.OutputNotEscaped -- render() returns pre-escaped JSON.
993            . '</script>';
994    }
995
996    /**
997     * Load the wp-build entry file and register its polyfills.
998     *
999     * Only called on `?page=jetpack-backup` admin requests when the
1000     * modernization filter is enabled. Keeps wp-build off every other request.
1001     *
1002     * @return void
1003     */
1004    private static function load_wp_build() {
1005        $build_index = dirname( __DIR__ ) . '/build/build.php';
1006
1007        if ( ! file_exists( $build_index ) ) {
1008            return;
1009        }
1010
1011        require_once $build_index;
1012
1013        \Automattic\Jetpack\WP_Build_Polyfills\WP_Build_Polyfills::register(
1014            'jetpack-backup',
1015            array_merge(
1016                \Automattic\Jetpack\WP_Build_Polyfills\WP_Build_Polyfills::SCRIPT_HANDLES,
1017                \Automattic\Jetpack\WP_Build_Polyfills\WP_Build_Polyfills::MODULE_IDS
1018            )
1019        );
1020    }
1021
1022    /**
1023     * Alias the current screen ID to satisfy wp-build's auto-generated enqueue check.
1024     *
1025     * Wp-build's `<page>-wp-admin` enqueue callback enqueues only when the screen ID
1026     * matches the wp-build page slug (`jetpack-backup-dashboard`). Our WP-admin
1027     * menu slug stays `jetpack-backup`, so we mutate the screen object in place
1028     * to make the check pass without changing the user-facing URL.
1029     *
1030     * Hooked only when modernization is on AND we're on the Backup admin page,
1031     * so this never affects any other request.
1032     *
1033     * @param \WP_Screen|null $screen The current screen object (passed by WP).
1034     * @return void
1035     */
1036    public static function alias_screen_id_for_wp_build( $screen ) {
1037        if ( ! is_object( $screen ) ) {
1038            return;
1039        }
1040
1041        $screen->id = 'jetpack-backup-dashboard';
1042    }
1043
1044    /**
1045     * Returns true when the wp-build modernization filter is enabled.
1046     *
1047     * @since 4.3.14 Changed from private to public; the REST bridges gate their route registration on it.
1048     *
1049     * @return bool
1050     */
1051    public static function is_modernized() {
1052        return (bool) apply_filters( self::MODERNIZATION_FILTER, false );
1053    }
1054
1055    /**
1056     * Returns true when the current request targets the Backup admin page.
1057     *
1058     * Used to scope wp-build loading to the one page that needs it. The
1059     * `$_GET['page']` value is populated by wp-admin/admin.php before any of
1060     * our hooks fire, so this check is reliable from `initialize()` onwards.
1061     *
1062     * @return bool
1063     */
1064    private static function is_backup_admin_request() {
1065        if ( ! is_admin() || ! isset( $_GET['page'] ) ) { // phpcs:ignore WordPress.Security.NonceVerification.Recommended
1066            return false;
1067        }
1068
1069        return sanitize_text_field( wp_unslash( $_GET['page'] ) ) === self::JETPACK_BACKUP_SLUG; // phpcs:ignore WordPress.Security.NonceVerification.Recommended
1070    }
1071}