<?php
/**
* Site API
*
* @package WordPress
* @subpackage Multisite
* @since 5.1.0
*/
/**
* Inserts a new site into the database.
*
* @since 5.1.0
*
* @global wpdb $wpdb WordPress database abstraction object.
*
* @param array $data {
* Data for the new site that should be inserted.
*
* @type string $domain Site domain. Default empty string.
* @type string $path Site path. Default '/'.
* @type int $network_id The site's network ID. Default is the current network ID.
* @type string $registered When the site was registered, in SQL datetime format. Default is
* the current time.
* @type string $last_updated When the site was last updated, in SQL datetime format. Default is
* the value of $registered.
* @type int $public Whether the site is public. Default 1.
* @type int $archived Whether the site is archived. Default 0.
* @type int $mature Whether the site is mature. Default 0.
* @type int $spam Whether the site is spam. Default 0.
* @type int $deleted Whether the site is deleted. Default 0.
* @type int $lang_id The site's language ID. Currently unused. Default 0.
* @type int $user_id User ID for the site administrator. Passed to the
* `wp_initialize_site` hook.
* @type string $title Site title. Default is 'Site %d' where %d is the site ID. Passed
* to the `wp_initialize_site` hook.
* @type array $options Custom option $key => $value pairs to use. Default empty array. Passed
* to the `wp_initialize_site` hook.
* @type array $meta Custom site metadata $key => $value pairs to use. Default empty array.
* Passed to the `wp_initialize_site` hook.
* }
* @return int|WP_Error The new site's ID on success, or error object on failure.
*/
function wp_insert_site( array $data ) {
global $wpdb;
$now = current_time( 'mysql', true );
$defaults = array(
'domain' => '',
'path' => '/',
'network_id' => get_current_network_id(),
'registered' => $now,
'last_updated' => $now,
'public' => 1,
'archived' => 0,
'mature' => 0,
'spam' => 0,
'deleted' => 0,
'lang_id' => 0,
);
$prepared_data = wp_prepare_site_data( $data, $defaults );
if ( is_wp_error( $prepared_data ) ) {
return $prepared_data;
}
if ( false === $wpdb->insert( $wpdb->blogs, $prepared_data ) ) {
return new WP_Error( 'db_insert_error', __( 'Could not insert site into the database.' ), $wpdb->last_error );
}
$site_id = (int) $wpdb->insert_id;
clean_blog_cache( $site_id );
$new_site = get_site( $site_id );
if ( ! $new_site ) {
return new WP_Error( 'get_site_error', __( 'Could not retrieve site data.' ) );
}
/**
* Fires once a site has been inserted into the database.
*
* @since 5.1.0
*
* @param WP_Site $new_site New site object.
*/
do_action( 'wp_insert_site', $new_site );
// Extract the passed arguments that may be relevant for site initialization.
$args = array_diff_key( $data, $defaults );
if ( isset( $args['site_id'] ) ) {
unset( $args['site_id'] );
}
/**
* Fires when a site's initialization routine should be executed.
*
* @since 5.1.0
*
* @param WP_Site $new_site New site object.
* @param array $args Arguments for the initialization.
*/
do_action( 'wp_initialize_site', $new_site, $args );
// Only compute extra hook parameters if the deprecated hook is actually in use.
if ( has_action( 'wpmu_new_blog' ) ) {
$user_id = ! empty( $args['user_id'] ) ? $args['user_id'] : 0;
$meta = ! empty( $args['options'] ) ? $args['options'] : array();
// WPLANG was passed with `$meta` to the `wpmu_new_blog` hook prior to 5.1.0.
if ( ! array_key_exists( 'WPLANG', $meta ) ) {
$meta['WPLANG'] = get_network_option( $new_site->network_id, 'WPLANG' );
}
/*
* Rebuild the data expected by the `wpmu_new_blog` hook prior to 5.1.0 using allowed keys.
* The `$allowed_data_fields` matches the one used in `wpmu_create_blog()`.
*/
$allowed_data_fields = array( 'public', 'archived', 'mature', 'spam', 'deleted', 'lang_id' );
$meta = array_merge( array_intersect_key( $data, array_flip( $allowed_data_fields ) ), $meta );
/**
* Fires immediately after a new site is created.
*
* @since MU (3.0.0)
* @deprecated 5.1.0 Use {@see 'wp_initialize_site'} instead.
*
* @param int $site_id Site ID.
* @param int $user_id User ID.
* @param string $domain Site domain.
* @param string $path Site path.
* @param int $network_id Network ID. Only relevant on multi-network installations.
* @param array $meta Meta data. Used to set initial site options.
*/
do_action_deprecated(
'wpmu_new_blog',
array( $new_site->id, $user_id, $new_site->domain, $new_site->path, $new_site->network_id, $meta ),
'5.1.0',
'wp_initialize_site'
);
}
return (int) $new_site->id;
}
/**
* Updates a site in the database.
*
* @since 5.1.0
*
* @global wpdb $wpdb WordPress database abstraction object.
*
* @param int $site_id ID of the site that should be updated.
* @param array $data Site data to update. See {@see wp_insert_site()} for the list of supported keys.
* @return int|WP_Error The updated site's ID on success, or error object on failure.
*/
function wp_update_site( $site_id, array $data ) {
global $wpdb;
if ( empty( $site_id ) ) {
return new WP_Error( 'site_empty_id', __( 'Site ID must not be empty.' ) );
}
$old_site = get_site( $site_id );
if ( ! $old_site ) {
return new WP_Error( 'site_not_exist', __( 'Site does not exist.' ) );
}
$defaults = $old_site->to_array();
$defaults['network_id'] = (int) $defaults['site_id'];
$defaults['last_updated'] = current_time( 'mysql', true );
unset( $defaults['blog_id'], $defaults['site_id'] );
$data = wp_prepare_site_data( $data, $defaults, $old_site );
if ( is_wp_error( $data ) ) {
return $data;
}
if ( false === $wpdb->update( $wpdb->blogs, $data, array( 'blog_id' => $old_site->id ) ) ) {
return new WP_Error( 'db_update_error', __( 'Could not update site in the database.' ), $wpdb->last_error );
}
clean_blog_cache( $old_site );
$new_site = get_site( $old_site->id );
/**
* Fires once a site has been updated in the database.
*
* @since 5.1.0
*
* @param WP_Site $new_site New site object.
* @param WP_Site $old_site Old site object.
*/
do_action( 'wp_update_site', $new_site, $old_site );
return (int) $new_site->id;
}
/**
* Deletes a site from the database.
*
* @since 5.1.0
*
* @global wpdb $wpdb WordPress database abstraction object.
*
* @param int $site_id ID of the site that should be deleted.
* @return WP_Site|WP_Error The deleted site object on success, or error object on failure.
*/
function wp_delete_site( $site_id ) {
global $wpdb;
if ( empty( $site_id ) ) {
return new WP_Error( 'site_empty_id', __( 'Site ID must not be empty.' ) );
}
$old_site = get_site( $site_id );
if ( ! $old_site ) {
return new WP_Error( 'site_not_exist', __( 'Site does not exist.' ) );
}
$errors = new WP_Error();
/**
* Fires before a site should be deleted from the database.
*
* Plugins should amend the `$errors` object via its `WP_Error::add()` method. If any errors
* are present, the site will not be deleted.
*
* @since 5.1.0
*
* @param WP_Error $errors Error object to add validation errors to.
* @param WP_Site $old_site The site object to be deleted.
*/
do_action( 'wp_validate_site_deletion', $errors, $old_site );
if ( ! empty( $errors->errors ) ) {
return $errors;
}
/**
* Fires before a site is deleted.
*
* @since MU (3.0.0)
* @deprecated 5.1.0
*
* @param int $site_id The site ID.
* @param bool $drop True if site's table should be dropped. Default false.
*/
do_action_deprecated( 'delete_blog', array( $old_site->id, true ), '5.1.0' );
/**
* Fires when a site's uninitialization routine should be executed.
*
* @since 5.1.0
*
* @param WP_Site $old_site Deleted site object.
*/
do_action( 'wp_uninitialize_site', $old_site );
if ( is_site_meta_supported() ) {
$blog_meta_ids = $wpdb->get_col( $wpdb->prepare( "SELECT meta_id FROM $wpdb->blogmeta WHERE blog_id = %d ", $old_site->id ) );
foreach ( $blog_meta_ids as $mid ) {
delete_metadata_by_mid( 'blog', $mid );
}
}
if ( false === $wpdb->delete( $wpdb->blogs, array( 'blog_id' => $old_site->id ) ) ) {
return new WP_Error( 'db_delete_error', __( 'Could not delete site from the database.' ), $wpdb->last_error );
}
clean_blog_cache( $old_site );
/**
* Fires once a site has been deleted from the database.
*
* @since 5.1.0
*
* @param WP_Site $old_site Deleted site object.
*/
do_action( 'wp_delete_site', $old_site );
/**
* Fires after the site is deleted from the network.
*
* @since 4.8.0
* @deprecated 5.1.0
*
* @param int $site_id The site ID.
* @param bool $drop True if site's tables should be dropped. Default false.
*/
do_action_deprecated( 'deleted_blog', array( $old_site->id, true ), '5.1.0' );
return $old_site;
}
/**
* Retrieves site data given a site ID or site object.
*
* Site data will be cached and returned after being passed through a filter.
* If the provided site is empty, the current site global will be used.
*
* @since 4.6.0
*
* @param WP_Site|int|null $site Optional. Site to retrieve. Default is the current site.
* @return WP_Site|null The site object or null if not found.
*/
function get_site( $site = null ) {
if ( empty( $site ) ) {
$site = get_current_blog_id();
}
if ( $site instanceof WP_Site ) {
$_site = $site;
} elseif ( is_object( $site ) ) {
$_site = new WP_Site( $site );
} else {
$_site = WP_Site::get_instance( $site );
}
if ( ! $_site ) {
return null;
}
/**
* Fires after a site is retrieved.
*
* @since 4.6.0
*
* @param WP_Site $_site Site data.
*/
$_site = apply_filters( 'get_site', $_site );
return $_site;
}
/**
* Adds any sites from the given IDs to the cache that do not already exist in cache.
*
* @since 4.6.0
* @since 5.1.0 Introduced the `$update_meta_cache` parameter.
* @since 6.1.0 This function is no longer marked as "private".
* @since 6.3.0 Use wp_lazyload_site_meta() for lazy-loading of site meta.
*
* @see update_site_cache()
* @global wpdb $wpdb WordPress database abstraction object.
*
* @param array $ids ID list.
* @param bool $update_meta_cache Optional. Whether to update the meta cache. Default true.
*/
function _prime_site_caches( $ids, $update_meta_cache = true ) {
global $wpdb;
$non_cached_ids = _get_non_cached_ids( $ids, 'sites' );
if ( ! empty( $non_cached_ids ) ) {
$fresh_sites = $wpdb->get_results( sprintf( "SELECT * FROM $wpdb->blogs WHERE blog_id IN (%s)", implode( ',', array_map( 'intval', $non_cached_ids ) ) ) ); // phpcs:ignore WordPress.DB.PreparedSQL.NotPrepared
update_site_cache( $fresh_sites, false );
}
if ( $update_meta_cache ) {
wp_lazyload_site_meta( $ids );
}
}
/**
* Queue site meta for lazy-loading.
*
* @since 6.3.0
*
* @param array $site_ids List of site IDs.
*/
function wp_lazyload_site_meta( array $site_ids ) {
if ( empty( $site_ids ) ) {
return;
}
$lazyloader = wp_metadata_lazyloader();
$lazyloader->queue_objects( 'blog', $site_ids );
}
/**
* Updates sites in cache.
*
* @since 4.6.0
* @since 5.1.0 Introduced the `$update_meta_cache` parameter.
*
* @param array $sites Array of site objects.
* @param bool $update_meta_cache Whether to update site meta cache. Default true.
*/
function update_site_cache( $sites, $update_meta_cache = true ) {
if ( ! $sites ) {
return;
}
$site_ids = array();
$site_data = array();
$blog_details_data = array();
foreach ( $sites as $site ) {
$site_ids[] = $site->blog_id;
$site_data[ $site->blog_id ] = $site;
$blog_details_data[ $site->blog_id . 'short' ] = $site;
}
wp_cache_add_multiple( $site_data, 'sites' );
wp_cache_add_multiple( $blog_details_data, 'blog-details' );
if ( $update_meta_cache ) {
update_sitemeta_cache( $site_ids );
}
}
/**
* Updates metadata cache for list of site IDs.
*
* Performs SQL query to retrieve all metadata for the sites matching `$site_ids` and stores them in the cache.
* Subsequent calls to `get_site_meta()` will not need to query the database.
*
* @since 5.1.0
*
* @param array $site_ids List of site IDs.
* @return array|false An array of metadata on success, false if there is nothing to update.
*/
function update_sitemeta_cache( $site_ids ) {
// Ensure this filter is hooked in even if the function is called early.
if ( ! has_filter( 'update_blog_metadata_cache', 'wp_check_site_meta_support_prefilter' ) ) {
add_filter( 'update_blog_metadata_cache', 'wp_check_site_meta_support_prefilter' );
}
return update_meta_cache( 'blog', $site_ids );
}
/**
* Retrieves a list of sites matching requested arguments.
*
* @since 4.6.0
* @since 4.8.0 Introduced the 'lang_id', 'lang__in', and 'lang__not_in' parameters.
*
* @see WP_Site_Query::parse_query()
*
* @param string|array $args Optional. Array or string of arguments. See WP_Site_Query::__construct()
* for information on accepted arguments. Default empty array.
* @return WP_Site[]|int[]|int List of WP_Site objects, a list of site IDs when 'fields' is set to 'ids',
* or the number of sites when 'count' is passed as a query var.
*/
function get_sites( $args = array() ) {
$query = new WP_Site_Query();
return $query->query( $args );
}
/**
* Prepares site data for insertion or update in the database.
*
* @since 5.1.0
*
* @param array $data Associative array of site data passed to the respective function.
* See {@see wp_insert_site()} for the possibly included data.
* @param array $defaults Site data defaults to parse $data against.
* @param WP_Site|null $old_site Optional. Old site object if an update, or null if an insertion.
* Default null.
* @return array|WP_Error Site data ready for a database transaction, or WP_Error in case a validation
* error occurred.
*/
function wp_prepare_site_data( $data, $defaults, $old_site = null ) {
// Maintain backward-compatibility with `$site_id` as network ID.
if ( isset( $data['site_id'] ) ) {
if ( ! empty( $data['site_id'] ) && empty( $data['network_id'] ) ) {
$data['network_id'] = $data['site_id'];
}
unset( $data['site_id'] );
}
/**
* Filters passed site data in order to normalize it.
*
* @since 5.1.0
*
* @param array $data Associative array of site data passed to the respective function.
* See {@see wp_insert_site()} for the possibly included data.
*/
$data = apply_filters( 'wp_normalize_site_data', $data );
$allowed_data_fields = array( 'domain', 'path', 'network_id', 'registered', 'last_updated', 'public', 'archived', 'mature', 'spam', 'deleted', 'lang_id' );
$data = array_intersect_key( wp_parse_args( $data, $defaults ), array_flip( $allowed_data_fields ) );
$errors = new WP_Error();
/**
* Fires when data should be validated for a site prior to inserting or updating in the database.
*
* Plugins should amend the `$errors` object via its `WP_Error::add()` method.
*
* @since 5.1.0
*
* @param WP_Error $errors Error object to add validation errors to.
* @param array $data Associative array of complete site data. See {@see wp_insert_site()}
* for the included data.
* @param WP_Site|null $old_site The old site object if the data belongs to a site being updated,
* or null if it is a new site being inserted.
*/
do_action( 'wp_validate_site_data', $errors, $data, $old_site );
if ( ! empty( $errors->errors ) ) {
return $errors;
}
// Prepare for database.
$data['site_id'] = $data['network_id'];
unset( $data['network_id'] );
return $data;
}
/**
* Normalizes data for a site prior to inserting or updating in the database.
*
* @since 5.1.0
*
* @param array $data Associative array of site data passed to the respective function.
* See {@see wp_insert_site()} for the possibly included data.
* @return array Normalized site data.
*/
function wp_normalize_site_data( $data ) {
// Sanitize domain if passed.
if ( array_key_exists( 'domain', $data ) ) {
$data['domain'] = preg_replace( '/[^a-z0-9\-.:]+/i', '', $data['domain'] );
}
// Sanitize path if passed.
if ( array_key_exists( 'path', $data ) ) {
$data['path'] = trailingslashit( '/' . trim( $data['path'], '/' ) );
}
// Sanitize network ID if passed.
if ( array_key_exists( 'network_id', $data ) ) {
$data['network_id'] = (int) $data['network_id'];
}
// Sanitize status fields if passed.
$status_fields = array( 'public', 'archived', 'mature', 'spam', 'deleted' );
foreach ( $status_fields as $status_field ) {
if ( array_key_exists( $status_field, $data ) ) {
$data[ $status_field ] = (int) $data[ $status_field ];
}
}
// Strip date fields if empty.
$date_fields = array( 'registered', 'last_updated' );
foreach ( $date_fields as $date_field ) {
if ( ! array_key_exists( $date_field, $data ) ) {
continue;
}
if ( empty( $data[ $date_field ] ) || '0000-00-00 00:00:00' === $data[ $date_field ] ) {
unset( $data[ $date_field ] );
}
}
return $data;
}
/**
* Validates data for a site prior to inserting or updating in the database.
*
* @since 5.1.0
*
* @param WP_Error $errors Error object, passed by reference. Will contain validation errors if
* any occurred.
* @param array $data Associative array of complete site data. See {@see wp_insert_site()}
* for the included data.
* @param WP_Site|null $old_site The old site object if the data belongs to a site being updated,
* or null if it is a new site being inserted.
*/
function wp_validate_site_data( $errors, $data, $old_site = null ) {
// A domain must always be present.
if ( empty( $data['domain'] ) ) {
$errors->add( 'site_empty_domain', __( 'Site domain must not be empty.' ) );
}
// A path must always be present.
if ( empty( $data['path'] ) ) {
$errors->add( 'site_empty_path', __( 'Site path must not be empty.' ) );
}
// A network ID must always be present.
if ( empty( $data['network_id'] ) ) {
$errors->add( 'site_empty_network_id', __( 'Site network ID must be provided.' ) );
}
// Both registration and last updated dates must always be present and valid.
$date_fields = array( 'registered', 'last_updated' );
foreach ( $date_fields as $date_field ) {
if ( empty( $data[ $date_field ] ) ) {
$errors->add( 'site_empty_' . $date_field, __( 'Both registration and last updated dates must be provided.' ) );
break;
}
// Allow '0000-00-00 00:00:00', although it be stripped out at this point.
if ( '0000-00-00 00:00:00' !== $data[ $date_field ] ) {
$month = substr( $data[ $date_field ], 5, 2 );
$day = substr( $data[ $date_field ], 8, 2 );
$year = substr( $data[ $date_field ], 0, 4 );
$valid_date = wp_checkdate( $month, $day, $year, $data[ $date_field ] );
if ( ! $valid_date ) {
$errors->add( 'site_invalid_' . $date_field, __( 'Both registration and last updated dates must be valid dates.' ) );
break;
}
}
}
if ( ! empty( $errors->errors ) ) {
return;
}
// If a new site, or domain/path/network ID have changed, ensure uniqueness.
if ( ! $old_site
|| $data['domain'] !== $old_site->domain
|| $data['path'] !== $old_site->path
|| $data['network_id'] !== $old_site->network_id
) {
if ( domain_exists( $data['domain'], $data['path'], $data['network_id'] ) ) {
$errors->add( 'site_taken', __( 'Sorry, that site already exists!' ) );
}
}
}
/**
* Runs the initialization routine for a given site.
*
* This process includes creating the site's database tables and
*