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wp-includes/ms-blogs.php

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<?php

/**
 * Site/blog functions that work with the blogs table and related data.
 *
 * @package WordPress
 * @subpackage Multisite
 * @since MU (3.0.0)
 */

require_once ABSPATH . WPINC . '/ms-site.php';
require_once ABSPATH . WPINC . '/ms-network.php';

/**
 * Updates the last_updated field for the current site.
 *
 * @since MU (3.0.0)
 */
function wpmu_update_blogs_date() {
    $site_id = get_current_blog_id();

    update_blog_details( $site_id, array( 'last_updated' => current_time( 'mysql', true ) ) );
    /**
     * Fires after the blog details are updated.
     *
     * @since MU (3.0.0)
     *
     * @param int $blog_id Site ID.
     */
    do_action( 'wpmu_blog_updated', $site_id );
}

/**
 * Gets a full site URL, given a site ID.
 *
 * @since MU (3.0.0)
 *
 * @param int $blog_id Site ID.
 * @return string Full site URL if found. Empty string if not.
 */
function get_blogaddress_by_id( $blog_id ) {
    $bloginfo = get_site( (int) $blog_id );

    if ( empty( $bloginfo ) ) {
        return '';
    }

    $scheme = parse_url( $bloginfo->home, PHP_URL_SCHEME );
    $scheme = empty( $scheme ) ? 'http' : $scheme;

    return esc_url( $scheme . '://' . $bloginfo->domain . $bloginfo->path );
}

/**
 * Gets a full site URL, given a site name.
 *
 * @since MU (3.0.0)
 *
 * @param string $blogname Name of the subdomain or directory.
 * @return string
 */
function get_blogaddress_by_name( $blogname ) {
    if ( is_subdomain_install() ) {
        if ( 'main' === $blogname ) {
            $blogname = 'www';
        }
        $url = rtrim( network_home_url(), '/' );
        if ( ! empty( $blogname ) ) {
            $url = preg_replace( '|^([^\.]+://)|', '${1}' . $blogname . '.', $url );
        }
    } else {
        $url = network_home_url( $blogname );
    }
    return esc_url( $url . '/' );
}

/**
 * Retrieves a site's ID given its (subdomain or directory) slug.
 *
 * @since MU (3.0.0)
 * @since 4.7.0 Converted to use `get_sites()`.
 *
 * @param string $slug A site's slug.
 * @return int|null The site ID, or null if no site is found for the given slug.
 */
function get_id_from_blogname( $slug ) {
    $current_network = get_network();
    $slug            = trim( $slug, '/' );

    if ( is_subdomain_install() ) {
        $domain = $slug . '.' . preg_replace( '|^www\.|', '', $current_network->domain );
        $path   = $current_network->path;
    } else {
        $domain = $current_network->domain;
        $path   = $current_network->path . $slug . '/';
    }

    $site_ids = get_sites(
        array(
            'number'                 => 1,
            'fields'                 => 'ids',
            'domain'                 => $domain,
            'path'                   => $path,
            'update_site_meta_cache' => false,
        )
    );

    if ( empty( $site_ids ) ) {
        return null;
    }

    return array_shift( $site_ids );
}

/**
 * Retrieves the details for a blog from the blogs table and blog options.
 *
 * @since MU (3.0.0)
 *
 * @global wpdb $wpdb WordPress database abstraction object.
 *
 * @param int|string|array $fields  Optional. A blog ID, a blog slug, or an array of fields to query against.
 *                                  Defaults to the current blog ID.
 * @param bool             $get_all Whether to retrieve all details or only the details in the blogs table.
 *                                  Default is true.
 * @return WP_Site|false Blog details on success. False on failure.
 */
function get_blog_details( $fields = null, $get_all = true ) {
    global $wpdb;

    if ( is_array( $fields ) ) {
        if ( isset( $fields['blog_id'] ) ) {
            $blog_id = $fields['blog_id'];
        } elseif ( isset( $fields['domain'] ) && isset( $fields['path'] ) ) {
            $key  = md5( $fields['domain'] . $fields['path'] );
            $blog = wp_cache_get( $key, 'blog-lookup' );
            if ( false !== $blog ) {
                return $blog;
            }
            if ( str_starts_with( $fields['domain'], 'www.' ) ) {
                $nowww = substr( $fields['domain'], 4 );
                $blog  = $wpdb->get_row( $wpdb->prepare( "SELECT * FROM $wpdb->blogs WHERE domain IN (%s,%s) AND path = %s ORDER BY CHAR_LENGTH(domain) DESC", $nowww, $fields['domain'], $fields['path'] ) );
            } else {
                $blog = $wpdb->get_row( $wpdb->prepare( "SELECT * FROM $wpdb->blogs WHERE domain = %s AND path = %s", $fields['domain'], $fields['path'] ) );
            }
            if ( $blog ) {
                wp_cache_set( $blog->blog_id . 'short', $blog, 'blog-details' );
                $blog_id = $blog->blog_id;
            } else {
                return false;
            }
        } elseif ( isset( $fields['domain'] ) && is_subdomain_install() ) {
            $key  = md5( $fields['domain'] );
            $blog = wp_cache_get( $key, 'blog-lookup' );
            if ( false !== $blog ) {
                return $blog;
            }
            if ( str_starts_with( $fields['domain'], 'www.' ) ) {
                $nowww = substr( $fields['domain'], 4 );
                $blog  = $wpdb->get_row( $wpdb->prepare( "SELECT * FROM $wpdb->blogs WHERE domain IN (%s,%s) ORDER BY CHAR_LENGTH(domain) DESC", $nowww, $fields['domain'] ) );
            } else {
                $blog = $wpdb->get_row( $wpdb->prepare( "SELECT * FROM $wpdb->blogs WHERE domain = %s", $fields['domain'] ) );
            }
            if ( $blog ) {
                wp_cache_set( $blog->blog_id . 'short', $blog, 'blog-details' );
                $blog_id = $blog->blog_id;
            } else {
                return false;
            }
        } else {
            return false;
        }
    } else {
        if ( ! $fields ) {
            $blog_id = get_current_blog_id();
        } elseif ( ! is_numeric( $fields ) ) {
            $blog_id = get_id_from_blogname( $fields );
        } else {
            $blog_id = $fields;
        }
    }

    $blog_id = (int) $blog_id;

    $all     = $get_all ? '' : 'short';
    $details = wp_cache_get( $blog_id . $all, 'blog-details' );

    if ( $details ) {
        if ( ! is_object( $details ) ) {
            if ( -1 === $details ) {
                return false;
            } else {
                // Clear old pre-serialized objects. Cache clients do better with that.
                wp_cache_delete( $blog_id . $all, 'blog-details' );
                unset( $details );
            }
        } else {
            return $details;
        }
    }

    // Try the other cache.
    if ( $get_all ) {
        $details = wp_cache_get( $blog_id . 'short', 'blog-details' );
    } else {
        $details = wp_cache_get( $blog_id, 'blog-details' );
        // If short was requested and full cache is set, we can return.
        if ( $details ) {
            if ( ! is_object( $details ) ) {
                if ( -1 === $details ) {
                    return false;
                } else {
                    // Clear old pre-serialized objects. Cache clients do better with that.
                    wp_cache_delete( $blog_id, 'blog-details' );
                    unset( $details );
                }
            } else {
                return $details;
            }
        }
    }

    if ( empty( $details ) ) {
        $details = WP_Site::get_instance( $blog_id );
        if ( ! $details ) {
            // Set the full cache.
            wp_cache_set( $blog_id, -1, 'blog-details' );
            return false;
        }
    }

    if ( ! $details instanceof WP_Site ) {
        $details = new WP_Site( $details );
    }

    if ( ! $get_all ) {
        wp_cache_set( $blog_id . $all, $details, 'blog-details' );
        return $details;
    }

    $switched_blog = false;

    if ( get_current_blog_id() !== $blog_id ) {
        switch_to_blog( $blog_id );
        $switched_blog = true;
    }

    $details->blogname   = get_option( 'blogname' );
    $details->siteurl    = get_option( 'siteurl' );
    $details->post_count = get_option( 'post_count' );
    $details->home       = get_option( 'home' );

    if ( $switched_blog ) {
        restore_current_blog();
    }

    /**
     * Filters a blog's details.
     *
     * @since MU (3.0.0)
     * @deprecated 4.7.0 Use {@see 'site_details'} instead.
     *
     * @param WP_Site $details The blog details.
     */
    $details = apply_filters_deprecated( 'blog_details', array( $details ), '4.7.0', 'site_details' );

    wp_cache_set( $blog_id . $all, $details, 'blog-details' );

    $key = md5( $details->domain . $details->path );
    wp_cache_set( $key, $details, 'blog-lookup' );

    return $details;
}

/**
 * Clears the blog details cache.
 *
 * @since MU (3.0.0)
 *
 * @param int $blog_id Optional. Blog ID. Defaults to current blog.
 */
function refresh_blog_details( $blog_id = 0 ) {
    $blog_id = (int) $blog_id;
    if ( ! $blog_id ) {
        $blog_id = get_current_blog_id();
    }

    clean_blog_cache( $blog_id );
}

/**
 * Updates the details for a blog and the blogs table for a given blog ID.
 *
 * @since MU (3.0.0)
 *
 * @param int   $blog_id Blog ID.
 * @param array $details Array of details keyed by blogs table field names.
 * @return bool True if update succeeds, false otherwise.
 */
function update_blog_details( $blog_id, $details = array() ) {
    if ( empty( $details ) ) {
        return false;
    }

    if ( is_object( $details ) ) {
        $details = get_object_vars( $details );
    }

    $site = wp_update_site( $blog_id, $details );

    if ( is_wp_error( $site ) ) {
        return false;
    }

    return true;
}

/**
 * Cleans the site details cache for a site.
 *
 * @since 4.7.4
 *
 * @param int $site_id Optional. Site ID. Default is the current site ID.
 */
function clean_site_details_cache( $site_id = 0 ) {
    $site_id = (int) $site_id;
    if ( ! $site_id ) {
        $site_id = get_current_blog_id();
    }

    wp_cache_delete( $site_id, 'site-details' );
    wp_cache_delete( $site_id, 'blog-details' );
}

/**
 * Retrieves option value for a given blog id based on name of option.
 *
 * If the option does not exist or does not have a value, then the return value
 * will be false. This is useful to check whether you need to install an option
 * and is commonly used during installation of plugin options and to test
 * whether upgrading is required.
 *
 * If the option was serialized then it will be unserialized when it is returned.
 *
 * @since MU (3.0.0)
 *
 * @param int    $id            A blog ID. Can be null to refer to the current blog.
 * @param string $option        Name of option to retrieve. Expected to not be SQL-escaped.
 * @param mixed  $default_value Optional. Default value to return if the option does not exist.
 * @return mixed Value set for the option.
 */
function get_blog_option( $id, $option, $default_value = false ) {
    $id = (int) $id;

    if ( empty( $id ) ) {
        $id = get_current_blog_id();
    }

    if ( get_current_blog_id() === $id ) {
        return get_option( $option, $default_value );
    }

    switch_to_blog( $id );
    $value = get_option( $option, $default_value );
    restore_current_blog();

    /**
     * Filters a blog option value.
     *
     * The dynamic portion of the hook name, `$option`, refers to the blog option name.
     *
     * @since 3.5.0
     *
     * @param string  $value The option value.
     * @param int     $id    Blog ID.
     */
    return apply_filters( "blog_option_{$option}", $value, $id );
}

/**
 * Adds a new option for a given blog ID.
 *
 * You do not need to serialize values. If the value needs to be serialized, then
 * it will be serialized before it is inserted into the database. Remember,
 * resources can not be serialized or added as an option.
 *
 * You can create options without values and then update the values later.
 * Existing options will not be updated and checks are performed to ensure that you
 * aren't adding a protected WordPress option. Care should be taken to not name
 * options the same as the ones which are protected.
 *
 * @since MU (3.0.0)
 *
 * @param int    $id     A blog ID. Can be null to refer to the current blog.
 * @param string $option Name of option to add. Expected to not be SQL-escaped.
 * @param mixed  $value  Option value, can be anything. Expected to not be SQL-escaped.
 * @return bool True if the option was added, false otherwise.
 */
function add_blog_option( $id, $option, $value ) {
    $id = (int) $id;

    if ( empty( $id ) ) {
        $id = get_current_blog_id();
    }

    if ( get_current_blog_id() === $id ) {
        return add_option( $option, $value );
    }

    switch_to_blog( $id );
    $return = add_option( $option, $value );
    restore_current_blog();

    return $return;
}

/**
 * Removes an option by name for a given blog ID. Prevents removal of protected WordPress options.
 *
 * @since MU (3.0.0)
 *
 * @param int    $id     A blog ID. Can be null to refer to the current blog.
 * @param string $option Name of option to remove. Expected to not be SQL-escaped.
 * @return bool True if the option was deleted, false otherwise.
 */
function delete_blog_option( $id, $option ) {
    $id = (int) $id;

    if ( empty( $id ) ) {
        $id = get_current_blog_id();
    }

    if ( get_current_blog_id() === $id ) {
        return delete_option( $option );
    }

    switch_to_blog( $id );
    $return = delete_option( $option );
    restore_current_blog();

    return $return;
}

/**
 * Updates an option for a particular blog.
 *
 * @since MU (3.0.0)
 *
 * @param int    $id         The blog ID.
 * @param string $option     The option key.
 * @param mixed  $value      The option value.
 * @param mixed  $deprecated Not used.
 * @return bool True if the value was updated, false otherwise.
 */
function update_blog_option( $id, $option, $value, $deprecated = null ) {
    $id = (int) $id;

    if ( null !== $deprecated ) {
        _deprecated_argument( __FUNCTION__, '3.1.0' );
    }

    if ( get_current_blog_id() === $id ) {
        return update_option( $option, $value );
    }

    switch_to_blog( $id );
    $return = update_option( $option, $value );
    restore_current_blog();

    return $return;
}

/**
 * Switches the current blog.
 *
 * This function is useful if you need to pull posts, or other information,
 * from other blogs. You can switch back afterwards using restore_current_blog().
 *
 * PHP code loaded with the originally requested site, such as code from a plugin or theme, does not switch. See #14941.
 *
 * @see restore_current_blog()
 * @since MU (3.0.0)
 *
 * @global wpdb            $wpdb               WordPress database abstraction object.
 * @global int             $blog_id
 * @global array           $_wp_switched_stack
 * @global bool            $switched
 * @global string          $table_prefix       The database table prefix.
 * @global WP_Object_Cache $wp_object_cache
 *
 * @param int  $new_blog_id The ID of the blog to switch to. Default: current blog.
 * @param bool $deprecated  Not used.
 * @return true Always returns true.
 */
function switch_to_blog( $new_blog_id, $deprecated = null ) {
    global $wpdb;

    $prev_blog_id = get_current_blog_id();
    if ( empty( $new_blog_id ) ) {
        $new_blog_id = $prev_blog_id;
    }

    $GLOBALS['_wp_switched_stack'][] = $prev_blog_id;

    /*
     * If we're switching to the same blog id that we're on,
     * set the right vars, do the associated actions, but skip
     * the extra unnecessary work
     */
    if ( $new_blog_id === $prev_blog_id ) {
        /**
         * Fires when the blog is switched.
         *
         * @since MU (3.0.0)
         * @since 5.4.0 The `$context` parameter was added.
         *
         * @param int    $new_blog_id  New blog ID.
         * @param int    $prev_blog_id Previous blog ID.
         * @param string $context      Additional context. Accepts 'switch' when called from switch_to_blog()
         *                             or 'restore' when called from restore_current_blog().
         */
        do_action( 'switch_blog', $new_blog_id, $prev_blog_id, 'switch' );

        $GLOBALS['switched'] = true;

        return true;
    }

    $wpdb->set_blog_id( $new_blog_id );
    $GLOBALS['table_prefix'] = $wpdb->get_blog_prefix();
    $GLOBALS['blog_id']      = $new_blog_id;

    if ( function_exists( 'wp_cache_switch_to_blog' ) ) {
        wp_cache_switch_to_blog( $new_blog_id );
    } else {
        global $wp_object_cache;

        if ( is_object( $wp_object_cache ) && isset( $wp_object_cache->global_groups ) ) {
            $global_groups = $wp_object_cache->global_groups;
        } else {
            $global_groups = false;
        }

        wp_cache_init();

        if ( function_exists( 'wp_cache_add_global_groups' ) ) {
            if ( is_array( $global_groups ) ) {
                wp_cache_add_global_groups( $global_groups );
            } else {
                wp_cache_add_global_groups(
                    array(
                        'blog-details',
                        'blog-id-cache',
                        'blog-lookup',
                        'blog_meta',
                        'global-posts',
                        'networks',
                        'network-queries',
                        'sites',
                        'site-details',
                        'site-options',
                        'site-queries',
                        'site-transient',
                        'theme_files',
                        'rss',
                        'users',
                        'user-queries',
                        'user_meta',
                        'useremail',
                        'userlogins',
                        'userslugs',
                    )
                );
            }

            wp_cache_add_non_persistent_groups( array( 'counts', 'plugins', 'theme_json' ) );
        }
    }

    /** This filter is documented in wp-includes/ms-blogs.php */
    do_action( 'switch_blog', $new_blog_id, $prev_blog_id, 'switch' );

    $GLOBALS['switched'] = true;

    return true;
}

/**
 * Restores the current blog, after calling switch_to_blog().
 *
 * @see switch_to_blog()
 * @since MU (3.0.0)
 *
 * @global wpdb            $wpdb               WordPress database abstraction object.
 * @global array           $_wp_switched_stack
 * @global int             $blog_id
 * @global bool            $switched
 * @global string          $table_prefix       The database table prefix.
 * @global WP_Object_Cache $wp_object_cache
 *
 * @return bool True on success, false if we're already on the current blog.
 */
function restore_current_blog() {
    global $wpdb;

    if ( empty( $GLOBALS['_wp_switched_stack'] ) ) {
        return false;
    }

    $new_blog_id  = array_pop( $GLOBALS['_wp_switched_stack'] );
    $prev_blog_id = get_current_blog_id();

    if ( $new_blog_id === $prev_blog_id ) {
        /** This filter is documented in wp-includes/ms-blogs.php */
        do_action( 'switch_blog', $new_blog_id, $prev_blog_id, 'restore' );

        // If we still have items in the switched stack, consider ourselves still 'switched'.
        $GLOBALS['switched'] = ! empty( $GLOBALS['_wp_switched_stack'] );

        return true;
    }

    $wpdb->set_blog_id( $new_blog_id );
    $GLOBALS['blog_id']      = $new_blog_id;
    $GLOBALS['table_prefix'] = $wpdb->get_blog_prefix();

    if ( function_exists( 'wp_cache_switch_to_blog' ) ) {
        wp_cache_switch_to_blog( $new_blog_id );
    } else {
        global $wp_object_cache;

        if ( is_object( $wp_object_cache ) && isset( $wp_object_cache->global_groups ) ) {
            $global_groups = $wp_object_cache->global_groups;
        } else {
            $global_groups = false;
        }

        wp_cache_init();

        if ( function_exists( 'wp_cache_add_global_groups' ) ) {
            if ( is_array( $global_groups ) ) {
                wp_cache_add_global_groups( $global_groups );
            } else {
                wp_cache_add_global_groups(
                    array(
                        'blog-details',
                        'blog-id-cache',
                        'blog-lookup',
                        'blog_meta',
                        'global-posts',
                        'networks',
                        'network-queries',
                        'sites',
                        'site-details',
                        'site-options',
                        'site-queries',
                        'site-transient',
                        'theme_files',
                        'rss',
                        'users',
                        'user-queries',
                        'user_meta',
                        'useremail',
                        'userlogins',
                        'userslugs',
                    )
                );
            }

            wp_cache_add_non_persistent_groups( array( 'counts', 'plugins', 'theme_json' ) );
        }
    }

    /** This filter is documented in wp-includes/ms-blogs.php */
    do_action( 'switch_blog', $new_blog_id, $prev_blog_id, 'restore' );

    // If we still have items in the switched stack, consider ourselves still 'switched'.
    $GLOBALS['switched'] = ! empty( $GLOBALS['_wp_switched_stack'] );

    return true;
}

/**
 * Switches the initialized roles and current user capabilities to another site.
 *
 * @since 4.9.0
 *
 * @param int $new_site_id New site ID.
 * @param int $old_site_id Old site ID.
 */
function wp_switch_roles_and_user( $new_site_id, $old_site_id ) {
    if ( $new_site_id === $old_site_id ) {
        return;
    }

    if ( ! did_action( 'init' ) ) {
        return;
    }

    wp_roles()->for_site( $new_site_id );
    wp_get_current_user()->for_site( $new_site_id );
}

/**
 * Determines if switch_to_blog() is in effect.
 *
 * @since 3.5.0
 *
 * @global array $_wp_switched_stack
 *
 * @return bool True if switched, false otherwise.
 */
function ms_is_switched() {
    return ! empty( $GLOBALS['_wp_switched_stack'] );
}

/**
 * Checks if a particular blog is archived.
 *
 * @since MU (3.0.0)
 *
 * @param int $id Blog ID.
 * @return string Whether the blog is archived or not.
 */
function is_archived( $id ) {
    return get_blog_status( $id, 'archived' );
}

/**
 * Updates the 'archived' status of a particular blog.
 *
 * @since MU (3.0.0)
 *
 * @param int    $id       Blog ID.
 * @param string $archived The new status.
 * @return string $archived
 */
function update_archived( $id, $archived ) {
    update_blog_status( $id, 'archived', $archived );
    return $archived;
}

/**
 * Updates a blog details field.
 *
 * @since MU (3.0.0)
 * @since 5.1.0 Use wp_update_site() internally.
 *
 * @global wpdb $wpdb WordPress database abstraction object.
 *
 * @param int    $blog_id    Blog ID.
 * @param string $pref       Field name.
 * @param string $value      Field value.
 * @param null   $deprecated Not used.
 * @return string|false $value
 */
function update_blog_status( $blog_id, $pref, $value, $deprecated = null ) {
    global $wpdb;

    if ( null !== $deprecated ) {
        _deprecated_argument( __FUNCTION__, '3.1.0' );
    }

    $allowed_field_names = array( 'site_id', 'domain', 'path', 'registered', 'last_updated', 'public', 'archived', 'mature', 'spam', 'deleted', 'lang_id' );

    if ( ! in_array( $pref, $allowed_field_names, true ) ) {
        return $value;
    }

    $result = wp_update_site(
        $blog_id,
        array(
            $pref => $value,
        )
    );

    if ( is_wp_error( $result ) ) {
        return false;
    }

    return $value;
}

/**
 * Gets a blog details field.
 *
 * @since MU (3.0.0)
 *
 * @global wpdb $wpdb WordPress database abstraction object.
 *
 * @param int    $id   Blog ID.
 * @param string $pref Field name.
 * @return bool|string|null $value
 */
function get_blog_status( $id, $pref ) {
    global $wpdb;

    $details = get_site( $id );
    if ( $details ) {
        return $details->$pref;
    }

    return $wpdb->get_var( $wpdb->prepare( "SELECT %s FROM {$wpdb->blogs} WHERE blog_id = %d", $pref, $id ) );
}

/**
 * Gets a list of most recently updated blogs.
 *
 * @since MU (3.0.0)
 *
 * @global wpdb $wpdb WordPress database abstraction object.
 *
 * @param mixed $deprecated Not used.
 * @param int   $start      Optional. Number of blogs to offset the query. Used to build LIMIT clause.
 *                          Can be used for pagination. Default 0.
 * @param int   $quantity   Optional. The maximum number of blogs to retrieve. Default 40.
 * @return array The list of blogs.
 */
function get_last_updated( $deprecated = '', $start = 0, $quantity = 40 ) {
    global $wpdb;

    if ( ! empty( $deprecated ) ) {
        _deprecated_argument( __FUNCTION__, 'MU' ); // Never used.
    }

    return $wpdb->get_results( $wpdb->prepare( "SELECT blog_id, domain, path FROM $wpdb->blogs WHERE site_id = %d AND public = '1' AND archived = '0' AND mature = '0' AND spam = '0' AND deleted = '0' AND last_updated != '0000-00-00 00:00:00' ORDER BY last_updated DESC limit %d, %d", get_current_network_id(), $start, $quantity ), ARRAY_A );
}

/**
 * Handler for updating the site's last updated date when a post is published or
 * an already published post is changed.
 *
 * @since 3.3.0
 *
 * @param string  $new_status The new post status.
 * @param string  $old_status The old post status.
 * @param WP_Post $post       Post object.
 */
function _update_blog_date_on_post_publish( $new_status, $old_status, $post ) {
    $post_type_obj = get_post_type_object( $post->post_type );
    if ( ! $post_type_obj || ! $post_type_obj->public ) {
        return;
    }

    if ( 'publish' !== $new_status && 'publish' !== $old_status ) {
        return;
    }

    // Post was freshly published, published post was saved, or published post was unpublished.

    wpmu_update_blogs_date();
}

/**
 * Handler for updating the current site's last updated date when a published
 * post is deleted.
 *
 * @since 3.4.0
 *
 * @param int $post_id Post ID
 */
function _update_blog_date_on_post_delete( $post_id ) {
    $post = get_post( $post_id );

    $post_type_obj = get_post_type_object( $post->post_type );
    if ( ! $post_type_obj || ! $post_type_obj->public ) {
        return;
    }

    if ( 'publish' !== $post->post_status ) {
        return;
    }

    wpmu_update_blogs_date();
}

/**
 * Handler for updating the current site's posts count when a post is deleted.
 *
 * @since 4.0.0
 * @since 6.2.0 Added the `$post` parameter.
 *
 * @param int     $post_id Post ID.
 * @param WP_Post $post    Post object.
 */
function _update_posts_count_on_delete( $post_id, $post ) {
    if ( ! $post || 'publish' !== $post->post_status || 'post' !== $post->post_type ) {
        return;
    }

    update_posts_count();
}

/**
 * Handler for updating the current site's posts count when a post status changes.
 *
 * @since 4.0.0
 * @since 4.9.0 Added the `$post` parameter.
 *
 * @param string  $new_status The status the post is changing to.
 * @param string  $old_status The status the post is changing from.
 * @param WP_Post $post       Post object
 */
function _update_posts_count_on_transition_post_status( $new_status, $old_status, $post = null ) {
    if ( $new_status === $old_status ) {
        return;
    }

    if ( 'post' !== get_post_type( $post ) ) {
        return;
    }

    if ( 'publish' !== $new_status && 'publish' !== $old_status ) {
        return;
    }

    update_posts_count();
}

/**
 * Counts number of sites grouped by site status.
 *
 * @since 5.3.0
 *
 * @param int $network_id Optional. The network to get counts for. Default is the current network ID.
 * @return int[] {
 *     Numbers of sites grouped by site status.
 *
 *     @type int $all      The total number of sites.
 *     @type int $public   The number of public sites.
 *     @type int $archived The number of archived sites.
 *     @type int $mature   The number of mature sites.
 *     @type int $spam     The number of spam sites.
 *     @type int $deleted  The number of deleted sites.
 * }
 */
function wp_count_sites( $network_id = null ) {
    if ( empty( $network_id ) ) {
        $network_id = get_current_network_id();
    }

    $counts = array();
    $args   = array(
        'network_id'    => $network_id,
        'number'        => 1,
        'fields'        => 'ids',
        'no_found_rows' => false,
    );

    $q             = new WP_Site_Query( $args );
    $counts['all'] = $q->found_sites;

    $_args    = $args;
    $statuses = array( 'public', 'archived', 'mature', 'spam', 'deleted' );

    foreach ( $statuses as $status ) {
        $_args            = $args;
        $_args[ $status ] = 1;

        $q                 = new WP_Site_Query( $_args );
        $counts[ $status ] = $q->found_sites;
    }

    return $counts;
}