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| 1 | <?php |
| 2 | /** |
| 3 | * Expiry_Domain: the WordPress.com address a reverted site falls back to. |
| 4 | * |
| 5 | * @package automattic/jetpack-mu-wpcom |
| 6 | */ |
| 7 | |
| 8 | declare( strict_types = 1 ); |
| 9 | |
| 10 | namespace Automattic\Jetpack\Jetpack_Mu_Wpcom\Expiry_Notices; |
| 11 | |
| 12 | use Automattic\Jetpack\Constants; |
| 13 | |
| 14 | require_once __DIR__ . '/class-expiry-wpcom.php'; |
| 15 | |
| 16 | /** |
| 17 | * Resolves the domain the expiry modal names, or null when it should say nothing. |
| 18 | */ |
| 19 | class Expiry_Domain { |
| 20 | |
| 21 | const CACHE_KEY = 'wpcom_expiry_notices_revert_domain'; |
| 22 | |
| 23 | /** |
| 24 | * The WordPress.com address this site would fall back to, or null when the |
| 25 | * modal should leave the domain out. |
| 26 | * |
| 27 | * Null covers both a domain that survives the revert and a lookup that |
| 28 | * failed: naming the wrong one is worse than naming none. |
| 29 | */ |
| 30 | public static function get_revert_domain(): ?string { |
| 31 | // A reverted site is back on Simple, where the blogs table already |
| 32 | // holds the unmapped address and no blog token could ask for it. |
| 33 | if ( Constants::is_true( 'IS_WPCOM' ) ) { |
| 34 | return self::simple_revert_domain(); |
| 35 | } |
| 36 | |
| 37 | // A resolved "nothing to say" is remembered as '' so the common case, |
| 38 | // a site keeping its custom domain, isn't re-asked every pageview. |
| 39 | $domain = Expiry_Wpcom::remember( |
| 40 | self::CACHE_KEY, |
| 41 | static function (): ?string { |
| 42 | $body = Expiry_Wpcom::get_as_blog( '/sites/%d/domains' ); |
| 43 | if ( ! is_object( $body ) || ! isset( $body->domains ) || ! is_array( $body->domains ) ) { |
| 44 | return null; |
| 45 | } |
| 46 | return self::pick_revert_domain( $body->domains ) ?? ''; |
| 47 | } |
| 48 | ); |
| 49 | |
| 50 | return '' === $domain ? null : $domain; |
| 51 | } |
| 52 | |
| 53 | /** |
| 54 | * The address a reverted Simple site is now on, or null if it kept its own. |
| 55 | * |
| 56 | * `wp_blogs.domain` is the unmapped address, so serving from it means the |
| 57 | * switch has happened; a custom domain means it never did. |
| 58 | */ |
| 59 | private static function simple_revert_domain(): ?string { |
| 60 | if ( ! function_exists( 'get_blog_details' ) ) { |
| 61 | return null; |
| 62 | } |
| 63 | |
| 64 | $details = get_blog_details( get_current_blog_id() ); |
| 65 | $unmapped = ( is_object( $details ) && ! empty( $details->domain ) ) ? (string) $details->domain : ''; |
| 66 | if ( '' === $unmapped ) { |
| 67 | return null; |
| 68 | } |
| 69 | |
| 70 | $serving = (string) wp_parse_url( home_url(), PHP_URL_HOST ); |
| 71 | return $serving === $unmapped ? $unmapped : null; |
| 72 | } |
| 73 | |
| 74 | /** |
| 75 | * The fallback address out of a site's domain list, or null when the |
| 76 | * primary domain survives the revert. |
| 77 | * |
| 78 | * @param array<int,object> $domains Domain objects from /sites/{id}/domains. |
| 79 | */ |
| 80 | public static function pick_revert_domain( array $domains ): ?string { |
| 81 | $wpcom_domain = null; |
| 82 | $primary = null; |
| 83 | $primary_is_wpcom_provided = false; |
| 84 | |
| 85 | foreach ( $domains as $domain ) { |
| 86 | if ( empty( $domain->domain ) || ! is_string( $domain->domain ) ) { |
| 87 | continue; |
| 88 | } |
| 89 | |
| 90 | // `*.wpcomstaging.com` is an Atomic hosting artifact whose mapping |
| 91 | // the revert deletes, so it is never what the site ends up called. |
| 92 | if ( ! empty( $domain->wpcom_domain ) && empty( $domain->is_wpcom_staging_domain ) ) { |
| 93 | $wpcom_domain = $domain->domain; |
| 94 | } |
| 95 | |
| 96 | if ( ! empty( $domain->primary_domain ) ) { |
| 97 | $primary = $domain->domain; |
| 98 | $primary_is_wpcom_provided = ! empty( $domain->wpcom_domain ) || ! empty( $domain->is_wpcom_staging_domain ); |
| 99 | } |
| 100 | } |
| 101 | |
| 102 | if ( null === $wpcom_domain || null === $primary ) { |
| 103 | return null; |
| 104 | } |
| 105 | |
| 106 | return $primary_is_wpcom_provided ? $wpcom_domain : null; |
| 107 | } |
| 108 | } |