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<?php
/**
* Multisite WordPress API
*
* @package WordPress
* @subpackage Multisite
* @since 3.0.0
*/
/**
* Gets the network's site and user counts.
*
* @since MU 1.0
*
* @return array Site and user count for the network.
*/
function get_sitestats() {
$stats = array(
'blogs' => get_blog_count(),
'users' => get_user_count(),
);
return $stats;
}
/**
* Get one of a user's active blogs
*
* Returns the user's primary blog, if they have one and
* it is active. If it's inactive, function returns another
* active blog of the user. If none are found, the user
* is added as a Subscriber to the Dashboard Blog and that blog
* is returned.
*
* @since MU 1.0
*
* @global wpdb $wpdb WordPress database abstraction object.
*
* @param int $user_id The unique ID of the user
* @return object|void The blog object
*/
function get_active_blog_for_user( $user_id ) {
global $wpdb;
$blogs = get_blogs_of_user( $user_id );
if ( empty( $blogs ) )
return;
if ( !is_multisite() )
return $blogs[$wpdb->blogid];
$primary_blog = get_user_meta( $user_id, 'primary_blog', true );
$first_blog = current($blogs);
if ( false !== $primary_blog ) {
if ( ! isset( $blogs[ $primary_blog ] ) ) {
update_user_meta( $user_id, 'primary_blog', $first_blog->userblog_id );
$primary = get_blog_details( $first_blog->userblog_id );
} else {
$primary = get_blog_details( $primary_blog );
}
} else {
//TODO Review this call to add_user_to_blog too - to get here the user must have a role on this blog?
add_user_to_blog( $first_blog->userblog_id, $user_id, 'subscriber' );
update_user_meta( $user_id, 'primary_blog', $first_blog->userblog_id );
$primary = $first_blog;
}
if ( ( ! is_object( $primary ) ) || ( $primary->archived == 1 || $primary->spam == 1 || $primary->deleted == 1 ) ) {
$blogs = get_blogs_of_user( $user_id, true ); // if a user's primary blog is shut down, check their other blogs.
$ret = false;
if ( is_array( $blogs ) && count( $blogs ) > 0 ) {
foreach ( (array) $blogs as $blog_id => $blog ) {
if ( $blog->site_id != $wpdb->siteid )
continue;
$details = get_blog_details( $blog_id );
if ( is_object( $details ) && $details->archived == 0 && $details->spam == 0 && $details->deleted == 0 ) {
$ret = $blog;
if ( get_user_meta( $user_id , 'primary_blog', true ) != $blog_id )
update_user_meta( $user_id, 'primary_blog', $blog_id );
if ( !get_user_meta($user_id , 'source_domain', true) )
update_user_meta( $user_id, 'source_domain', $blog->domain );
break;
}
}
} else {
return;
}
return $ret;
} else {
return $primary;
}
}
/**
* The number of active users in your installation.
*
* The count is cached and updated twice daily. This is not a live count.
*
* @since MU 2.7
*
* @return int
*/
function get_user_count() {
return get_site_option( 'user_count' );
}
/**
* The number of active sites on your installation.
*
* The count is cached and updated twice daily. This is not a live count.
*
* @since MU 1.0
*
* @param int $network_id Deprecated, not supported.
* @return int
*/
function get_blog_count( $network_id = 0 ) {
if ( func_num_args() )
_deprecated_argument( __FUNCTION__, '3.1' );
return get_site_option( 'blog_count' );
}
/**
* Get a blog post from any site on the network.
*
* @since MU 1.0
*
* @param int $blog_id ID of the blog.
* @param int $post_id ID of the post you're looking for.
* @return WP_Post|null WP_Post on success or null on failure
*/
function get_blog_post( $blog_id, $post_id ) {
switch_to_blog( $blog_id );
$post = get_post( $post_id );
restore_current_blog();
return $post;
}
/**
* Add a user to a blog.
*
* Use the 'add_user_to_blog' action to fire an event when
* users are added to a blog.
*
* @since MU 1.0
*
* @param int $blog_id ID of the blog you're adding the user to.
* @param int $user_id ID of the user you're adding.
* @param string $role The role you want the user to have
* @return true|WP_Error
*/
function add_user_to_blog( $blog_id, $user_id, $role ) {
switch_to_blog($blog_id);
$user = get_userdata( $user_id );
if ( ! $user ) {
restore_current_blog();
return new WP_Error( 'user_does_not_exist', __( 'The requested user does not exist.' ) );
}
if ( !get_user_meta($user_id, 'primary_blog', true) ) {
update_user_meta($user_id, 'primary_blog', $blog_id);
$details = get_blog_details($blog_id);
update_user_meta($user_id, 'source_domain', $details->domain);
}
$user->set_role($role);
/**
* Fires immediately after a user is added to a site.
*
* @since MU
*
* @param int $user_id User ID.
* @param string $role User role.
* @param int $blog_id Blog ID.
*/
do_action( 'add_user_to_blog', $user_id, $role, $blog_id );
wp_cache_delete( $user_id, 'users' );
wp_cache_delete( $blog_id . '_user_count', 'blog-details' );
restore_current_blog();
return true;
}
/**
* Remove a user from a blog.
*
* Use the 'remove_user_from_blog' action to fire an event when
* users are removed from a blog.
*
* Accepts an optional $reassign parameter, if you want to
* reassign the user's blog posts to another user upon removal.
*
* @since MU 1.0
*
* @global wpdb $wpdb WordPress database abstraction object.
*
* @param int $user_id ID of the user you're removing.
* @param int $blog_id ID of the blog you're removing the user from.
* @param string $reassign Optional. A user to whom to reassign posts.
* @return true|WP_Error
*/
function remove_user_from_blog($user_id, $blog_id = '', $reassign = '') {
global $wpdb;
switch_to_blog($blog_id);
$user_id = (int) $user_id;
/**
* Fires before a user is removed from a site.
*
* @since MU
*
* @param int $user_id User ID.
* @param int $blog_id Blog ID.
*/
do_action( 'remove_user_from_blog', $user_id, $blog_id );
// If being removed from the primary blog, set a new primary if the user is assigned
// to multiple blogs.
$primary_blog = get_user_meta($user_id, 'primary_blog', true);
if ( $primary_blog == $blog_id ) {
$new_id = '';
$new_domain = '';
$blogs = get_blogs_of_user($user_id);
foreach ( (array) $blogs as $blog ) {
if ( $blog->userblog_id == $blog_id )
continue;
$new_id = $blog->userblog_id;
$new_domain = $blog->domain;
break;
}
update_user_meta($user_id, 'primary_blog', $new_id);
update_user_meta($user_id, 'source_domain', $new_domain);
}
// wp_revoke_user($user_id);
$user = get_userdata( $user_id );
if ( ! $user ) {
restore_current_blog();
return new WP_Error('user_does_not_exist', __('That user does not exist.'));
}
$user->remove_all_caps();
$blogs = get_blogs_of_user($user_id);
if ( count($blogs) == 0 ) {
update_user_meta($user_id, 'primary_blog', '');
update_user_meta($user_id, 'source_domain', '');
}
if ( $reassign != '' ) {
$reassign = (int) $reassign;
$post_ids = $wpdb->get_col( $wpdb->prepare( "SELECT ID FROM $wpdb->posts WHERE post_author = %d", $user_id ) );
$link_ids = $wpdb->get_col( $wpdb->prepare( "SELECT link_id FROM $wpdb->links WHERE link_owner = %d", $user_id ) );
if ( ! empty( $post_ids ) ) {
$wpdb->query( $wpdb->prepare( "UPDATE $wpdb->posts SET post_author = %d WHERE post_author = %d", $reassign, $user_id ) );
array_walk( $post_ids, 'clean_post_cache' );
}
if ( ! empty( $link_ids ) ) {
$wpdb->query( $wpdb->prepare( "UPDATE $wpdb->links SET link_owner = %d WHERE link_owner = %d", $reassign, $user_id ) );
array_walk( $link_ids, 'clean_bookmark_cache' );
}
}
restore_current_blog();
return true;
}
/**
* Get the permalink for a post on another blog.
*
* @since MU 1.0
*
* @param int $blog_id ID of the source blog.
* @param int $post_id ID of the desired post.
* @return string The post's permalink
*/
function get_blog_permalink( $blog_id, $post_id ) {
switch_to_blog( $blog_id );
$link = get_permalink( $post_id );
restore_current_blog();
return $link;
}
/**
* Get a blog's numeric ID from its URL.
*
* On a subdirectory installation like example.com/blog1/,
* $domain will be the root 'example.com' and $path the
* subdirectory '/blog1/'. With subdomains like blog1.example.com,
* $domain is 'blog1.example.com' and $path is '/'.
*
* @since MU 2.6.5
*
* @global wpdb $wpdb WordPress database abstraction object.
*
* @param string $domain
* @param string $path Optional. Not required for subdomain installations.
* @return int 0 if no blog found, otherwise the ID of the matching blog
*/
function get_blog_id_from_url( $domain, $path = '/' ) {
global $wpdb;
$domain = strtolower( $domain );
$path = strtolower( $path );
$id = wp_cache_get( md5( $domain . $path ), 'blog-id-cache' );
if ( $id == -1 ) // blog does not exist
return 0;
elseif ( $id )
return (int) $id;
$id = $wpdb->get_var( $wpdb->prepare( "SELECT blog_id FROM $wpdb->blogs WHERE domain = %s and path = %s /* get_blog_id_from_url */", $domain, $path ) );
if ( ! $id ) {
wp_cache_set( md5( $domain . $path ), -1, 'blog-id-cache' );
return 0;
}
wp_cache_set( md5( $domain . $path ), $id, 'blog-id-cache' );
return $id;
}
// Admin functions
/**
* Checks an email address against a list of banned domains.
*
* This function checks against the Banned Email Domains list
* at wp-admin/network/settings.php. The check is only run on
* self-registrations; user creation at wp-admin/network/users.php
* bypasses this check.
*
* @since MU
*
* @param string $user_email The email provided by the user at registration.
* @return bool Returns true when the email address is banned.
*/
function is_email_address_unsafe( $user_email ) {
$banned_names = get_site_option( 'banned_email_domains' );
if ( $banned_names && ! is_array( $banned_names ) )
$banned_names = explode( "\n", $banned_names );
$is_email_address_unsafe = false;
if ( $banned_names && is_array( $banned_names ) ) {
$banned_names = array_map( 'strtolower', $banned_names );
$normalized_email = strtolower( $user_email );
list( $email_local_part, $email_domain ) = explode( '@', $normalized_email );
foreach ( $banned_names as $banned_domain ) {
if ( ! $banned_domain )
continue;
if ( $email_domain == $banned_domain ) {
$is_email_address_unsafe = true;
break;
}
$dotted_domain = ".$banned_domain";
if ( $dotted_domain === substr( $normalized_email, -strlen( $dotted_domain ) ) ) {
$is_email_address_unsafe = true;
break;
}
}
}
/**
* Filter whether an email address is unsafe.
*
* @since 3.5.0
*
* @param bool $is_email_address_unsafe Whether the email address is "unsafe". Default false.
* @param string $user_email User email address.
*/
return apply_filters( 'is_email_address_unsafe', $is_email_address_unsafe, $user_email );
}
/**
* Sanitize and validate data required for a user sign-up.
*
* Verifies the validity and uniqueness of user names and user email addresses,
* and checks email addresses against admin-provided domain whitelists and blacklists.
*
* The {@see 'wpmu_validate_user_signup'} hook provides an easy way to modify the sign-up
* process. The value $result, which is passed to the hook, contains both the user-provided
* info and the error messages created by the function. {@see 'wpmu_validate_user_signup'}
* allows you to process the data in any way you'd like, and unset the relevant errors if
* necessary.
*
* @since MU
*
* @global wpdb $wpdb WordPress database abstraction object.
*
* @param string $user_name The login name provided by the user.
* @param string $user_email The email provided by the user.
* @return array Contains username, email, and error messages.
*/
function wpmu_validate_user_signup($user_name, $user_email) {
global $wpdb;
$errors = new WP_Error();
$orig_username = $user_name;
$user_name = preg_replace( '/\s+/', '', sanitize_user( $user_name, true ) );
if ( $user_name != $orig_username || preg_match( '/[^a-z0-9]/', $user_name ) ) {
$errors->add( 'user_name', __( 'Usernames can only contain lowercase letters (a-z) and numbers.' ) );
$user_name = $orig_username;
}
$user_email = sanitize_email( $user_email );
if ( empty( $user_name ) )
$errors->add('user_name', __( 'Please enter a username.' ) );
$illegal_names = get_site_option( 'illegal_names' );
if ( ! is_array( $illegal_names ) ) {
$illegal_names = array( 'www', 'web', 'root', 'admin', 'main', 'invite', 'administrator' );
add_site_option( 'illegal_names', $illegal_names );
}
if ( in_array( $user_name, $illegal_names ) ) {
$errors->add( 'user_name', __( 'Sorry, that username is not allowed.' ) );
}
/** This filter is documented in wp-includes/user.php */
$illegal_logins = (array) apply_filters( 'illegal_user_logins', array() );
if ( in_array( strtolower( $user_name ), array_map( 'strtolower', $illegal_logins ) ) ) {
$errors->add( 'user_name', __( 'Sorry, that username is not allowed.' ) );
}
if ( is_email_address_unsafe( $user_email ) )
$errors->add('user_email', __('You cannot use that email address to signup. We are having problems with them blocking some of our email. Please use another email provider.'));
if ( strlen( $user_name ) < 4 )
$errors->add('user_name', __( 'Username must be at least 4 characters.' ) );
if ( strlen( $user_name ) > 60 ) {
$errors->add( 'user_name', __( 'Username may not be longer than 60 characters.' ) );
}
// all numeric?
if ( preg_match( '/^[0-9]*$/', $user_name ) )
$errors->add('user_name', __('Sorry, usernames must have letters too!'));
if ( !is_email( $user_email ) )
$errors->add('user_email', __( 'Please enter a valid email address.' ) );
$limited_email_domains = get_site_option( 'limited_email_domains' );
if ( is_array( $limited_email_domains ) && ! empty( $limited_email_domains ) ) {
$emaildomain = substr( $user_email, 1 + strpos( $user_email, '@' ) );
if ( ! in_array( $emaildomain, $limited_email_domains ) ) {
$errors->add('user_email', __('Sorry, that email address is not allowed!'));
}
}
// Check if the username has been used already.
if ( username_exists($user_name) )
$errors->add( 'user_name', __( 'Sorry, that username already exists!' ) );
// Check if the email address has been used already.
if ( email_exists($user_email) )
$errors->add( 'user_email', __( 'Sorry, that email address is already used!' ) );
// Has someone already signed up for this username?
$signup = $wpdb->get_row( $wpdb->prepare("SELECT * FROM $wpdb->signups WHERE user_login = %s", $user_name) );
if ( $signup != null ) {
$registered_at = mysql2date('U', $signup->registered);
$now = current_time( 'timestamp', true );
$diff = $now - $registered_at;
// If registered more than two days ago, cancel registration and let this signup go through.
if ( $diff > 2 * DAY_IN_SECONDS )
$wpdb->delete( $wpdb->signups, array( 'user_login' => $user_name ) );
else
$errors->add('user_name', __('That username is currently reserved but may be available in a couple of days.'));
}
$signup = $wpdb->get_row( $wpdb->prepare("SELECT * FROM $wpdb->signups WHERE user_email = %s", $user_email) );
if ( $signup != null ) {
$diff = current_time( 'timestamp', true ) - mysql2date('U', $signup->registered);
// If registered more than two days ago, cancel registration and let this signup go through.
if ( $diff > 2 * DAY_IN_SECONDS )
$wpdb->delete( $wpdb->signups, array( 'user_email' => $user_email ) );
else
$errors->add('user_email', __('That email address has already been used. Please check your inbox for an activation email. It will become available in a couple of days if you do nothing.'));
}
$result = array('user_name' => $user_name, 'orig_username' => $orig_username, 'user_email' => $user_email, 'errors' => $errors);
/**
* Filter the validated user registration details.
*
* This does not allow you to override the username or email of the user during
* registration. The values are solely used for validation and error handling.
*
* @since MU
*
* @param array $result {
* The array of user name, email and the error messages.
*
* @type string $user_name Sanitized and unique username.
* @type string $orig_username Original username.
* @type string $user_email User email address.
* @type WP_Error $errors WP_Error object containing any errors found.
* }
*/
return apply_filters( 'wpmu_validate_user_signup', $result );
}
/**
* Processes new site registrations.
*
* Checks the data provided by the user during blog signup. Verifies
* the validity and uniqueness of blog paths and domains.
*
* This function prevents the current user from registering a new site
* with a blogname equivalent to another user's login name. Passing the
* $user parameter to the function, where $user is the other user, is
* effectively an override of this limitation.
*
* Filter 'wpmu_validate_blog_signup' if you want to modify
* the way that WordPress validates new site signups.
*
* @since MU
*
* @global wpdb $wpdb
* @global string $domain
*
* @param string $blogname The blog name provided by the user. Must be unique.
* @param string $blog_title The blog title provided by the user.
* @param WP_User|string $user Optional. The user object to check against the new site name.
* @return array Contains the new site data and error messages.
*/
function wpmu_validate_blog_signup( $blogname, $blog_title, $user = '' ) {
global $wpdb, $domain;
$current_site = get_current_site();
$base = $current_site->path;
$blog_title = strip_tags( $blog_title );
$errors = new WP_Error();
$illegal_names = get_site_option( 'illegal_names' );
if ( $illegal_names == false ) {
$illegal_names = array( 'www', 'web', 'root', 'admin', 'main', 'invite', 'administrator' );
add_site_option( 'illegal_names', $illegal_names );
}
/*
* On sub dir installs, some names are so illegal, only a filter can
* spring them from jail.
*/
if ( ! is_subdomain_install() ) {
$illegal_names = array_merge( $illegal_names, get_subdirectory_reserved_names() );
}
if ( empty( $blogname ) )
$errors->add('blogname', __( 'Please enter a site name.' ) );
if ( preg_match( '/[^a-z0-9]+/', $blogname ) ) {
$errors->add( 'blogname', __( 'Site names can only contain lowercase letters (a-z) and numbers.' ) );
}
if ( in_array( $blogname, $illegal_names ) )
$errors->add('blogname', __( 'That name is not allowed.' ) );
if ( strlen( $blogname ) < 4 && !is_super_admin() )
$errors->add('blogname', __( 'Site name must be at least 4 characters.' ) );
// do not allow users to create a blog that conflicts with a page on the main blog.
if ( !is_subdomain_install() && $wpdb->get_var( $wpdb->prepare( "SELECT post_name FROM " . $wpdb->get_blog_prefix( $current_site->blog_id ) . "posts WHERE post_type = 'page' AND post_name = %s", $blogname ) ) )
$errors->add( 'blogname', __( 'Sorry, you may not use that site name.' ) );
// all numeric?
if ( preg_match( '/^[0-9]*$/', $blogname ) )
$errors->add('blogname', __('Sorry, site names must have letters too!'));
/**
* Filter the new site name during registration.
*
* The name is the site's subdomain or the site's subdirectory
* path depending on the network settings.
*
* @since MU
*
* @param string $blogname Site name.
*/
$blogname = apply_filters( 'newblogname', $blogname );
$blog_title = wp_unslash( $blog_title );
if ( empty( $blog_title ) )
$errors->add('blog_title', __( 'Please enter a site title.' ) );
// Check if the domain/path has been used already.
if ( is_subdomain_install() ) {
$mydomain = $blogname . '.' . preg_replace( '|^www\.|', '', $domain );
$path = $base;
} else {
$mydomain = "$domain";
$path = $base.$blogname.'/';
}
if ( domain_exists($mydomain, $path, $current_site->id) )
$errors->add( 'blogname', __( 'Sorry, that site already exists!' ) );
if ( username_exists( $blogname ) ) {
if ( ! is_object( $user ) || ( is_object($user) && ( $user->user_login != $blogname ) ) )
$errors->add( 'blogname', __( 'Sorry, that site is reserved!' ) );
}
// Has someone already signed up for this domain?
$signup = $wpdb->get_row( $wpdb->prepare("SELECT * FROM $wpdb->signups WHERE domain = %s AND path = %s", $mydomain, $path) ); // TODO: Check email too?
if ( ! empty($signup) ) {
$diff = current_time( 'timestamp', true ) - mysql2date('U', $signup->registered);
// If registered more than two days ago, cancel registration and let this signup go through.
if ( $diff > 2 * DAY_IN_SECONDS )
$wpdb->delete( $wpdb->signups, array( 'domain' => $mydomain , 'path' => $path ) );
else
$errors->add('blogname', __('That site is currently reserved but may be available in a couple days.'));
}
$result = array('domain' => $mydomain, 'path' => $path, 'blogname' => $blogname, 'blog_title' => $blog_title, 'user' => $user, 'errors' => $errors);
/**
* Filter site details and error messages following registration.
*
* @since MU
*
* @param array $result {
* Array of domain, path, blog name, blog title, user and error messages.
*
* @type string $domain Domain for the site.
* @type string $path Path for the site. Used in subdirectory installs.
* @type string $blogname The unique site name (slug).
* @type string $blog_title Blog title.
* @type string|WP_User $user By default, an empty string. A user object if provided.
* @type WP_Error $errors WP_Error containing any errors found.
* }
*/
return apply_filters( 'wpmu_validate_blog_signup', $result );
}
/**
* Record site signup information for future activation.
*
* @since MU
*
* @global wpdb $wpdb WordPress database abstraction object.
*
* @param string $domain The requested domain.
* @param string $path The requested path.
* @param string $title The requested site title.
* @param string $user The user's requested login name.
* @param string $user_email The user's email address.
* @param array $meta By default, contains the requested privacy setting and lang_id.
*/
function wpmu_signup_blog( $domain, $path, $title, $user, $user_email, $meta = array() ) {
global $wpdb;
$key = substr( md5( time() . rand() . $domain ), 0, 16 );
$meta = serialize($meta);
$wpdb->insert( $wpdb->signups, array(
'domain' => $domain,
'path' => $path,
'title' => $title,
'user_login' => $user,
'user_email' => $user_email,
'registered' => current_time('mysql', true),
'activation_key' => $key,
'meta' => $meta
) );
/**
* Fires after site signup information has been written to the database.
*
* @since 4.4.0
*
* @param string $domain The requested domain.
* @param string $path The requested path.
* @param string $title The requested site title.
* @param string $user The user's requested login name.
* @param string $user_email The user's email address.
* @param string $key The user's activation key
* @param array $meta By default, contains the requested privacy setting and lang_id.
*/
do_action( 'after_signup_site', $domain, $path, $title, $user, $user_email, $key, $meta );
}
/**
* Record user signup information for future activation.
*
* This function is used when user registration is open but
* new site registration is not.
*
* @since MU
*
* @global wpdb $wpdb WordPress database abstraction object.
*
* @param string $user The user's requested login name.
* @param string $user_email The user's email address.
* @param array $meta By default, this is an empty array.
*/
function wpmu_signup_user( $user, $user_email, $meta = array() ) {
global $wpdb;
// Format data
$user = preg_replace( '/\s+/', '', sanitize_user( $user, true ) );
$user_email = sanitize_email( $user_email );
$key = substr( md5( time() . rand() . $user_email ), 0, 16 );
$meta = serialize($meta);
$wpdb->insert( $wpdb->signups, array(
'domain' => '',
'path' => '',
'title' => '',
'user_login' => $user,
'user_email' => $user_email,
'registered' => current_time('mysql', true),
'activation_key' => $key,
'meta' => $meta
) );
/**
* Fires after a user's signup information has been written to the database.
*
* @since 4.4.0
*
* @param string $user The user's requested login name.
* @param string $user_email The user's email address.
* @param string $key The user's activation key
* @param array $meta Additional signup meta. By default, this is an empty array.
*/
do_action( 'after_signup_user', $user, $user_email, $key, $meta );
}
/**
* Notify user of signup success.
*
* This is the notification function used when site registration
* is enabled.
*
* Filter 'wpmu_signup_blog_notification' to bypass this function or
* replace it with your own notification behavior.
*
* Filter 'wpmu_signup_blog_notification_email' and
* 'wpmu_signup_blog_notification_subject' to change the content
* and subject line of the email sent to newly registered users.
*
* @since MU
*
* @param string $domain The new blog domain.
* @param string $path The new blog path.
* @param string $title The site title.
* @param string $user The user's login name.
* @param string $user_email The user's email address.
* @param string $key The activation key created in wpmu_signup_blog()
* @param array $meta By default, contains the requested privacy setting and lang_id.
* @return bool
*/
function wpmu_signup_blog_notification( $domain, $path, $title, $user, $user_email, $key, $meta = array() ) {
/**
* Filter whether to bypass the new site email notification.
*
* @since MU
*
* @param string|bool $domain Site domain.
* @param string $path Site path.
* @param string $title Site title.
* @param string $user User login name.
* @param string $user_email User email address.
* @param string $key Activation key created in wpmu_signup_blog().
* @param array $meta By default, contains the requested privacy setting and lang_id.
*/
if ( ! apply_filters( 'wpmu_signup_blog_notification', $domain, $path, $title, $user, $user_email, $key, $meta ) ) {
return false;
}
// Send email with activation link.
if ( !is_subdomain_install() || get_current_site()->id != 1 )
$activate_url = network_site_url("wp-activate.php?key=$key");
else
$activate_url = "http://{$domain}{$path}wp-activate.php?key=$key"; // @todo use *_url() API
$activate_url = esc_url($activate_url);
$admin_email = get_site_option( 'admin_email' );
if ( $admin_email == '' )
$admin_email = 'support@' . $_SERVER['SERVER_NAME'];
$from_name = get_site_option( 'site_name' ) == '' ? 'WordPress' : esc_html( get_site_option( 'site_name' ) );
$message_headers = "From: \"{$from_name}\" <{$admin_email}>\n" . "Content-Type: text/plain; charset=\"" . get_option('blog_charset') . "\"\n";
$message = sprintf(
/**
* Filter the message content of the new blog notification email.
*
* Content should be formatted for transmission via wp_mail().
*
* @since MU
*
* @param string $content Content of the notification email.
* @param string $domain Site domain.
* @param string $path Site path.
* @param string $title Site title.
* @param string $user User login name.
* @param string $user_email User email address.
* @param string $key Activation key created in wpmu_signup_blog().
* @param array $meta By default, contains the requested privacy setting and lang_id.
*/
apply_filters( 'wpmu_signup_blog_notification_email',
__( "To activate your blog, please click the following link:\n\n%s\n\nAfter you activate, you will receive *another email* with your login.\n\nAfter you activate, you can visit your site here:\n\n%s" ),
$domain, $path, $title, $user, $user_email, $key, $meta
),
$activate_url,
esc_url( "http://{$domain}{$path}" ),
$key
);
// TODO: Don't hard code activation link.
$subject = sprintf(
/**
* Filter the subject of the new blog notification email.
*
* @since MU
*
* @param string $subject Subject of the notification email.
* @param string $domain Site domain.
* @param string $path Site path.
* @param string $title Site title.
* @param string $user User login name.
* @param string $user_email User email address.
* @param string $key Activation key created in wpmu_signup_blog().
* @param array $meta By default, contains the requested privacy setting and lang_id.
*/
apply_filters( 'wpmu_signup_blog_notification_subject',
__( '[%1$s] Activate %2$s' ),
$domain, $path, $title, $user, $user_email, $key, $meta
),
$from_name,
esc_url( 'http://' . $domain . $path )
);
wp_mail( $user_email, wp_specialchars_decode( $subject ), $message, $message_headers );
return true;
}
/**
* Notify user of signup success.
*
* This is the notification function used when no new site has
* been requested.
*
* Filter 'wpmu_signup_user_notification' to bypass this function or
* replace it with your own notification behavior.
*
* Filter 'wpmu_signup_user_notification_email' and
* 'wpmu_signup_user_notification_subject' to change the content
* and subject line of the email sent to newly registered users.
*
* @since MU
*
* @param string $user The user's login name.
* @param string $user_email The user's email address.
* @param string $key The activation key created in wpmu_signup_user()
* @param array $meta By default, an empty array.
* @return bool
*/
function wpmu_signup_user_notification( $user, $user_email, $key, $meta = array() ) {
/**
* Filter whether to bypass the email notification for new user sign-up.
*
* @since MU
*
* @param string $user User login name.
* @param string $user_email User email address.
* @param string $key Activation key created in wpmu_signup_user().
* @param array $meta Signup meta data.
*/
if ( ! apply_filters( 'wpmu_signup_user_notification', $user, $user_email, $key, $meta ) )
return false;
// Send email with activation link.
$admin_email = get_site_option( 'admin_email' );
if ( $admin_email == '' )
$admin_email = 'support@' . $_SERVER['SERVER_NAME'];
$from_name = get_site_option( 'site_name' ) == '' ? 'WordPress' : esc_html( get_site_option( 'site_name' ) );
$message_headers = "From: \"{$from_name}\" <{$admin_email}>\n" . "Content-Type: text/plain; charset=\"" . get_option('blog_charset') . "\"\n";
$message = sprintf(
/**
* Filter the content of the notification email for new user sign-up.
*
* Content should be formatted for transmission via wp_mail().
*
* @since MU
*
* @param string $content Content of the notification email.
* @param string $user User login name.
* @param string $user_email User email address.
* @param string $key Activation key created in wpmu_signup_user().
* @param array $meta Signup meta data.
*/
apply_filters( 'wpmu_signup_user_notification_email',
__( "To activate your user, please click the following link:\n\n%s\n\nAfter you activate, you will receive *another email* with your login." ),
$user, $user_email, $key, $meta
),
site_url( "wp-activate.php?key=$key" )
);
// TODO: Don't hard code activation link.
$subject = sprintf(
/**
* Filter the subject of the notification email of new user signup.
*
* @since MU
*
* @param string $subject Subject of the notification email.
* @param string $user User login name.
* @param string $user_email User email address.
* @param string $key Activation key created in wpmu_signup_user().
* @param array $meta Signup meta data.
*/
apply_filters( 'wpmu_signup_user_notification_subject',
__( '[%1$s] Activate %2$s' ),
$user, $user_email, $key, $meta
),
$from_name,
$user
);
wp_mail( $user_email, wp_specialchars_decode( $subject ), $message, $message_headers );
return true;
}
/**
* Activate a signup.
*
* Hook to 'wpmu_activate_user' or 'wpmu_activate_blog' for events
* that should happen only when users or sites are self-created (since
* those actions are not called when users and sites are created
* by a Super Admin).
*
* @since MU
*
* @global wpdb $wpdb WordPress database abstraction object.
*
* @param string $key The activation key provided to the user.
* @return array|WP_Error An array containing information about the activated user and/or blog
*/
function wpmu_activate_signup($key) {
global $wpdb;
$signup = $wpdb->get_row( $wpdb->prepare("SELECT * FROM $wpdb->signups WHERE activation_key = %s", $key) );
if ( empty( $signup ) )
return new WP_Error( 'invalid_key', __( 'Invalid activation key.' ) );
if ( $signup->active ) {
if ( empty( $signup->domain ) )
return new WP_Error( 'already_active', __( 'The user is already active.' ), $signup );
else
return new WP_Error( 'already_active', __( 'The site is already active.' ), $signup );
}
$meta = maybe_unserialize($signup->meta);
$password = wp_generate_password( 12, false );
$user_id = username_exists($signup->user_login);
if ( ! $user_id )
$user_id = wpmu_create_user($signup->user_login, $password, $signup->user_email);
else
$user_already_exists = true;
if ( ! $user_id )
return new WP_Error('create_user', __('Could not create user'), $signup);
$now = current_time('mysql', true);
if ( empty($signup->domain) ) {
$wpdb->update( $wpdb->signups, array('active' => 1, 'activated' => $now), array('activation_key' => $key) );
if ( isset( $user_already_exists ) )
return new WP_Error( 'user_already_exists', __( 'That username is already activated.' ), $signup);
/**
* Fires immediately after a new user is activated.
*
* @since MU
*
* @param int $user_id User ID.
* @param int $password User password.
* @param array $meta Signup meta data.
*/
do_action( 'wpmu_activate_user', $user_id, $password, $meta );
return array( 'user_id' => $user_id, 'password' => $password, 'meta' => $meta );
}
$blog_id = wpmu_create_blog( $signup->domain, $signup->path, $signup->title, $user_id, $meta, $wpdb->siteid );
// TODO: What to do if we create a user but cannot create a blog?
if ( is_wp_error($blog_id) ) {
// If blog is taken, that means a previous attempt to activate this blog failed in between creating the blog and
// setting the activation flag. Let's just set the active flag and instruct the user to reset their password.
if ( 'blog_taken' == $blog_id->get_error_code() ) {
$blog_id->add_data( $signup );
$wpdb->update( $wpdb->signups, array( 'active' => 1, 'activated' => $now ), array( 'activation_key' => $key ) );
}
return $blog_id;
}
$wpdb->update( $wpdb->signups, array('active' => 1, 'activated' => $now), array('activation_key' => $key) );
/**
* Fires immediately after a site is activated.
*
* @since MU
*
* @param int $blog_id Blog ID.
* @param int $user_id User ID.
* @param int $password User password.
* @param string $signup_title Site title.
* @param array $meta Signup meta data.
*/
do_action( 'wpmu_activate_blog', $blog_id, $user_id, $password, $signup->title, $meta );
return array('blog_id' => $blog_id, 'user_id' => $user_id, 'password' => $password, 'title' => $signup->title, 'meta' => $meta);
}
/**
* Create a user.
*
* This function runs when a user self-registers as well as when
* a Super Admin creates a new user. Hook to 'wpmu_new_user' for events
* that should affect all new users, but only on Multisite (otherwise
* use 'user_register').
*
* @since MU
*
* @param string $user_name The new user's login name.
* @param string $password The new user's password.
* @param string $email The new user's email address.
* @return int|false Returns false on failure, or int $user_id on success
*/
function wpmu_create_user( $user_name, $password, $email ) {
$user_name = preg_replace( '/\s+/', '', sanitize_user( $user_name, true ) );
$user_id = wp_create_user( $user_name, $password, $email );
if ( is_wp_error( $user_id ) )
return false;
// Newly created users have no roles or caps until they are added to a blog.
delete_user_option( $user_id, 'capabilities' );
delete_user_option( $user_id, 'user_level' );
/**
* Fires immediately after a new user is created.
*
* @since MU
*
* @param int $user_id User ID.
*/
do_action( 'wpmu_new_user', $user_id );
return $user_id;
}
/**
* Create a site.
*
* This function runs when a user self-registers a new site as well
* as when a Super Admin creates a new site. Hook to 'wpmu_new_blog'
* for events that should affect all new sites.
*
* On subdirectory installs, $domain is the same as the main site's
* domain, and the path is the subdirectory name (eg 'example.com'
* and '/blog1/'). On subdomain installs, $domain is the new subdomain +
* root domain (eg 'blog1.example.com'), and $path is '/'.
*
* @since MU
*
* @param string $domain The new site's domain.
* @param string $path The new site's path.
* @param string $title The new site's title.
* @param int $user_id The user ID of the new site's admin.
* @param array $meta Optional. Used to set initial site options.
* @param int $site_id Optional. Only relevant on multi-network installs.
* @return int|WP_Error Returns WP_Error object on failure, int $blog_id on success
*/
function wpmu_create_blog( $domain, $path, $title, $user_id, $meta = array(), $site_id = 1 ) {
$defaults = array( 'public' => 0 );
$meta = wp_parse_args( $meta, $defaults );
$domain = preg_replace( '/\s+/', '', sanitize_user( $domain, true ) );
if ( is_subdomain_install() )
$domain = str_replace( '@', '', $domain );
$title = strip_tags( $title );
$user_id = (int) $user_id;
if ( empty($path) )
$path = '/';
// Check if the domain has been used already. We should return an error message.
if ( domain_exists($domain, $path, $site_id) )
return new WP_Error( 'blog_taken', __( 'Sorry, that site already exists!' ) );
if ( ! wp_installing() ) {
wp_installing( true );
}
if ( ! $blog_id = insert_blog($domain, $path, $site_id) )
return new WP_Error('insert_blog', __('Could not create site.'));
switch_to_blog($blog_id);
install_blog($blog_id, $title);
wp_install_defaults($user_id);
add_user_to_blog($blog_id, $user_id, 'administrator');
foreach ( $meta as $key => $value ) {
if ( in_array( $key, array( 'public', 'archived', 'mature', 'spam', 'deleted', 'lang_id' ) ) )
update_blog_status( $blog_id, $key, $value );
else
update_option( $key, $value );
}
add_option( 'WPLANG', get_site_option( 'WPLANG' ) );
update_option( 'blog_public', (int) $meta['public'] );
if ( ! is_super_admin( $user_id ) && ! get_user_meta( $user_id, 'primary_blog', true ) )
update_user_meta( $user_id, 'primary_blog', $blog_id );
restore_current_blog();
/**
* Fires immediately after a new site is created.
*
* @since MU
*
* @param int $blog_id Blog ID.
* @param int $user_id User ID.
* @param string $domain Site domain.
* @param string $path Site path.
* @param int $site_id Site ID. Only relevant on multi-network installs.
* @param array $meta Meta data. Used to set initial site options.
*/
do_action( 'wpmu_new_blog', $blog_id, $user_id, $domain, $path, $site_id, $meta );
return $blog_id;
}
/**
* Notifies the network admin that a new site has been activated.
*
* Filter 'newblog_notify_siteadmin' to change the content of
* the notification email.
*
* @since MU
*
* @param int $blog_id The new site's ID.
* @return bool
*/
function newblog_notify_siteadmin( $blog_id, $deprecated = '' ) {
if ( get_site_option( 'registrationnotification' ) != 'yes' )
return false;
$email = get_site_option( 'admin_email' );
if ( is_email($email) == false )
return false;
$options_site_url = esc_url(network_admin_url('settings.php'));
switch_to_blog( $blog_id );
$blogname = get_option( 'blogname' );
$siteurl = site_url();
restore_current_blog();
$msg = sprintf( __( 'New Site: %1$s
URL: %2$s
Remote IP: %3$s
Disable these notifications: %4$s' ), $blogname, $siteurl, wp_unslash( $_SERVER['REMOTE_ADDR'] ), $options_site_url);
/**
* Filter the message body of the new site activation email sent
* to the network administrator.
*
* @since MU
*
* @param string $msg Email body.
*/
$msg = apply_filters( 'newblog_notify_siteadmin', $msg );
wp_mail( $email, sprintf( __( 'New Site Registration: %s' ), $siteurl ), $msg );
return true;
}
/**
* Notifies the network admin that a new user has been activated.
*
* Filter 'newuser_notify_siteadmin' to change the content of
* the notification email.
*
* @since MU
*
* @param int $user_id The new user's ID.
* @return bool
*/
function newuser_notify_siteadmin( $user_id ) {
if ( get_site_option( 'registrationnotification' ) != 'yes' )
return false;
$email = get_site_option( 'admin_email' );
if ( is_email($email) == false )
return false;
$user = get_userdata( $user_id );
$options_site_url = esc_url(network_admin_url('settings.php'));
$msg = sprintf(__('New User: %1$s
Remote IP: %2$s
Disable these notifications: %3$s'), $user->user_login, wp_unslash( $_SERVER['REMOTE_ADDR'] ), $options_site_url);
/**
* Filter the message body of the new user activation email sent
* to the network administrator.
*
* @since MU
*
* @param string $msg Email body.
* @param WP_User $user WP_User instance of the new user.
*/
$msg = apply_filters( 'newuser_notify_siteadmin', $msg, $user );
wp_mail( $email, sprintf(__('New User Registration: %s'), $user->user_login), $msg );
return true;
}
/**
* Check whether a blogname is already taken.
*
* Used during the new site registration process to ensure
* that each blogname is unique.
*
* @since MU
*
* @global wpdb $wpdb WordPress database abstraction object.
*
* @param string $domain The domain to be checked.
* @param string $path The path to be checked.
* @param int $site_id Optional. Relevant only on multi-network installs.
* @return int
*/
function domain_exists($domain, $path, $site_id = 1) {
global $wpdb;
$path = trailingslashit( $path );
$result = $wpdb->get_var( $wpdb->prepare("SELECT blog_id FROM $wpdb->blogs WHERE domain = %s AND path = %s AND site_id = %d", $domain, $path, $site_id) );
/**
* Filter whether a blogname is taken.
*
* @since 3.5.0
*
* @param int|null $result The blog_id if the blogname exists, null otherwise.
* @param string $domain Domain to be checked.
* @param string $path Path to be checked.
* @param int $site_id Site ID. Relevant only on multi-network installs.
*/
return apply_filters( 'domain_exists', $result, $domain, $path, $site_id );
}
/**
* Store basic site info in the blogs table.
*
* This function creates a row in the wp_blogs table and returns
* the new blog's ID. It is the first step in creating a new blog.
*
* @since MU
*
* @global wpdb $wpdb WordPress database abstraction object.
*
* @param string $domain The domain of the new site.
* @param string $path The path of the new site.
* @param int $site_id Unless you're running a multi-network install, be sure to set this value to 1.
* @return int|false The ID of the new row
*/
function insert_blog($domain, $path, $site_id) {
global $wpdb;
$path = trailingslashit($path);
$site_id = (int) $site_id;
$result = $wpdb->insert( $wpdb->blogs, array('site_id' => $site_id, 'domain' => $domain, 'path' => $path, 'registered' => current_time('mysql')) );
if ( ! $result )
return false;
$blog_id = $wpdb->insert_id;
refresh_blog_details( $blog_id );
wp_maybe_update_network_site_counts();
return $blog_id;
}
/**
* Install an empty blog.
*
* Creates the new blog tables and options. If calling this function
* directly, be sure to use switch_to_blog() first, so that $wpdb
* points to the new blog.
*
* @since MU
*
* @global wpdb $wpdb
* @global WP_Roles $wp_roles
*
* @param int $blog_id The value returned by insert_blog().
* @param string $blog_title The title of the new site.
*/
function install_blog( $blog_id, $blog_title = '' ) {
global $wpdb, $wp_roles, $current_site;
// Cast for security
$blog_id = (int) $blog_id;
require_once( ABSPATH . 'wp-admin/includes/upgrade.php' );
$suppress = $wpdb->suppress_errors();
if ( $wpdb->get_results( "DESCRIBE {$wpdb->posts}" ) )
die( '<h1>' . __( 'Already Installed' ) . '</h1><p>' . __( 'You appear to have already installed WordPress. To reinstall please clear your old database tables first.' ) . '</p></body></html>' );
$wpdb->suppress_errors( $suppress );
$url = get_blogaddress_by_id( $blog_id );
// Set everything up
make_db_current_silent( 'blog' );
populate_options();
populate_roles();
// populate_roles() clears previous role definitions so we start over.
$wp_roles = new WP_Roles();
$siteurl = $home = untrailingslashit( $url );
if ( ! is_subdomain_install() ) {
if ( 'https' === parse_url( get_site_option( 'siteurl' ), PHP_URL_SCHEME ) ) {
$siteurl = set_url_scheme( $siteurl, 'https' );
}
if ( 'https' === parse_url( get_home_url( $current_site->blog_id ), PHP_URL_SCHEME ) ) {
$home = set_url_scheme( $home, 'https' );
}
}
update_option( 'siteurl', $siteurl );
update_option( 'home', $home );
if ( get_site_option( 'ms_files_rewriting' ) )
update_option( 'upload_path', UPLOADBLOGSDIR . "/$blog_id/files" );
else
update_option( 'upload_path', get_blog_option( get_current_site()->blog_id, 'upload_path' ) );
update_option( 'blogname', wp_unslash( $blog_title ) );
update_option( 'admin_email', '' );
// remove all perms
$table_prefix = $wpdb->get_blog_prefix();
delete_metadata( 'user', 0, $table_prefix . 'user_level', null, true ); // delete all
delete_metadata( 'user', 0, $table_prefix . 'capabilities', null, true ); // delete all
}
/**
* Set blog defaults.
*
* This function creates a row in the wp_blogs table.
*
* @since MU
* @deprecated MU
* @deprecated Use wp_install_defaults()
*
* @global wpdb $wpdb WordPress database abstraction object.
*
* @param int $blog_id Ignored in this function.
* @param int $user_id
*/
function install_blog_defaults($blog_id, $user_id) {
global $wpdb;
require_once( ABSPATH . 'wp-admin/includes/upgrade.php' );
$suppress = $wpdb->suppress_errors();
wp_install_defaults($user_id);
$wpdb->suppress_errors( $suppress );
}
/**
* Notify a user that their blog activation has been successful.
*
* Filter 'wpmu_welcome_notification' to disable or bypass.
*
* Filter 'update_welcome_email' and 'update_welcome_subject' to
* modify the content and subject line of the notification email.
*
* @since MU
*
* @param int $blog_id
* @param int $user_id
* @param string $password
* @param string $title The new blog's title
* @param array $meta Optional. Not used in the default function, but is passed along to hooks for customization.
* @return bool
*/
function wpmu_welcome_notification( $blog_id, $user_id, $password, $title, $meta = array() ) {
$current_site = get_current_site();
/**
* Filter whether to bypass the welcome email after site activation.
*
* Returning false disables the welcome email.
*
* @since MU
*
* @param int|bool $blog_id Blog ID.
* @param int $user_id User ID.
* @param string $password User password.
* @param string $title Site title.
* @param array $meta Signup meta data.
*/
if ( ! apply_filters( 'wpmu_welcome_notification', $blog_id, $user_id, $password, $title, $meta ) )
return false;
$welcome_email = get_site_option( 'welcome_email' );
if ( $welcome_email == false ) {
/* translators: Do not translate USERNAME, SITE_NAME, BLOG_URL, PASSWORD: those are placeholders. */
$welcome_email = __( 'Howdy USERNAME,
Your new SITE_NAME site has been successfully set up at:
BLOG_URL
You can log in to the administrator account with the following information:
Username: USERNAME
Password: PASSWORD
Log in here: BLOG_URLwp-login.php
We hope you enjoy your new site. Thanks!
--The Team @ SITE_NAME' );
}
$url = get_blogaddress_by_id($blog_id);
$user = get_userdata( $user_id );
$welcome_email = str_replace( 'SITE_NAME', $current_site->site_name, $welcome_email );
$welcome_email = str_replace( 'BLOG_TITLE', $title, $welcome_email );
$welcome_email = str_replace( 'BLOG_URL', $url, $welcome_email );
$welcome_email = str_replace( 'USERNAME', $user->user_login, $welcome_email );
$welcome_email = str_replace( 'PASSWORD', $password, $welcome_email );
/**
* Filter the content of the welcome email after site activation.
*
* Content should be formatted for transmission via wp_mail().
*
* @since MU
*
* @param string $welcome_email Message body of the email.
* @param int $blog_id Blog ID.
* @param int $user_id User ID.
* @param string $password User password.
* @param string $title Site title.
* @param array $meta Signup meta data.
*/
$welcome_email = apply_filters( 'update_welcome_email', $welcome_email, $blog_id, $user_id, $password, $title, $meta );
$admin_email = get_site_option( 'admin_email' );
if ( $admin_email == '' )
$admin_email = 'support@' . $_SERVER['SERVER_NAME'];
$from_name = get_site_option( 'site_name' ) == '' ? 'WordPress' : esc_html( get_site_option( 'site_name' ) );
$message_headers = "From: \"{$from_name}\" <{$admin_email}>\n" . "Content-Type: text/plain; charset=\"" . get_option('blog_charset') . "\"\n";
$message = $welcome_email;
if ( empty( $current_site->site_name ) )
$current_site->site_name = 'WordPress';
/**
* Filter the subject of the welcome email after site activation.
*
* @since MU
*
* @param string $subject Subject of the email.
*/
$subject = apply_filters( 'update_welcome_subject', sprintf( __( 'New %1$s Site: %2$s' ), $current_site->site_name, wp_unslash( $title ) ) );
wp_mail( $user->user_email, wp_specialchars_decode( $subject ), $message, $message_headers );
return true;
}
/**
* Notify a user that their account activation has been successful.
*
* Filter 'wpmu_welcome_user_notification' to disable or bypass.
*
* Filter 'update_welcome_user_email' and 'update_welcome_user_subject' to
* modify the content and subject line of the notification email.
*
* @since MU
*
* @param int $user_id
* @param string $password
* @param array $meta Optional. Not used in the default function, but is passed along to hooks for customization.
* @return bool
*/
function wpmu_welcome_user_notification( $user_id, $password, $meta = array() ) {
$current_site = get_current_site();
/**
* Filter whether to bypass the welcome email after user activation.
*
* Returning false disables the welcome email.
*
* @since MU
*
* @param int $user_id User ID.
* @param string $password User password.
* @param array $meta Signup meta data.
*/
if ( ! apply_filters( 'wpmu_welcome_user_notification', $user_id, $password, $meta ) )
return false;
$welcome_email = get_site_option( 'welcome_user_email' );
$user = get_userdata( $user_id );
/**
* Filter the content of the welcome email after user activation.
*
* Content should be formatted for transmission via wp_mail().
*
* @since MU
*
* @param type $welcome_email The message body of the account activation success email.
* @param int $user_id User ID.
* @param string $password User password.
* @param array $meta Signup meta data.
*/
$welcome_email = apply_filters( 'update_welcome_user_email', $welcome_email, $user_id, $password, $meta );
$welcome_email = str_replace( 'SITE_NAME', $current_site->site_name, $welcome_email );
$welcome_email = str_replace( 'USERNAME', $user->user_login, $welcome_email );
$welcome_email = str_replace( 'PASSWORD', $password, $welcome_email );
$welcome_email = str_replace( 'LOGINLINK', wp_login_url(), $welcome_email );
$admin_email = get_site_option( 'admin_email' );
if ( $admin_email == '' )
$admin_email = 'support@' . $_SERVER['SERVER_NAME'];
$from_name = get_site_option( 'site_name' ) == '' ? 'WordPress' : esc_html( get_site_option( 'site_name' ) );
$message_headers = "From: \"{$from_name}\" <{$admin_email}>\n" . "Content-Type: text/plain; charset=\"" . get_option('blog_charset') . "\"\n";
$message = $welcome_email;
if ( empty( $current_site->site_name ) )
$current_site->site_name = 'WordPress';
/**
* Filter the subject of the welcome email after user activation.
*
* @since MU
*
* @param string $subject Subject of the email.
*/
$subject = apply_filters( 'update_welcome_user_subject', sprintf( __( 'New %1$s User: %2$s' ), $current_site->site_name, $user->user_login) );
wp_mail( $user->user_email, wp_specialchars_decode( $subject ), $message, $message_headers );
return true;
}
/**
* Get the current site info.
*
* Returns an object containing the 'id', 'domain', 'path', and 'site_name'
* properties of the site being viewed.
*
* @see wpmu_current_site()
*
* @since MU
*
* @global object $current_site
*
* @return object
*/
function get_current_site() {
global $current_site;
return $current_site;
}
/**
* Get a user's most recent post.
*
* Walks through each of a user's blogs to find the post with
* the most recent post_date_gmt.
*
* @since MU
*
* @global wpdb $wpdb WordPress database abstraction object.
*
* @param int $user_id
* @return array Contains the blog_id, post_id, post_date_gmt, and post_gmt_ts
*/
function get_most_recent_post_of_user( $user_id ) {
global $wpdb;
$user_blogs = get_blogs_of_user( (int) $user_id );
$most_recent_post = array();
// Walk through each blog and get the most recent post
// published by $user_id
foreach ( (array) $user_blogs as $blog ) {
$prefix = $wpdb->get_blog_prefix( $blog->userblog_id );
$recent_post = $wpdb->get_row( $wpdb->prepare("SELECT ID, post_date_gmt FROM {$prefix}posts WHERE post_author = %d AND post_type = 'post' AND post_status = 'publish' ORDER BY post_date_gmt DESC LIMIT 1", $user_id ), ARRAY_A);
// Make sure we found a post
if ( isset($recent_post['ID']) ) {
$post_gmt_ts = strtotime($recent_post['post_date_gmt']);
// If this is the first post checked or if this post is
// newer than the current recent post, make it the new
// most recent post.
if ( !isset($most_recent_post['post_gmt_ts']) || ( $post_gmt_ts > $most_recent_post['post_gmt_ts'] ) ) {
$most_recent_post = array(
'blog_id' => $blog->userblog_id,
'post_id' => $recent_post['ID'],
'post_date_gmt' => $recent_post['post_date_gmt'],
'post_gmt_ts' => $post_gmt_ts
);
}
}
}
return $most_recent_post;
}
// Misc functions
/**
* Get the size of a directory.
*
* A helper function that is used primarily to check whether
* a blog has exceeded its allowed upload space.
*
* @since MU
*
* @param string $directory Full path of a directory.
* @return int Size of the directory in MB.
*/
function get_dirsize( $directory ) {
$dirsize = get_transient( 'dirsize_cache' );
if ( is_array( $dirsize ) && isset( $dirsize[ $directory ][ 'size' ] ) )
return $dirsize[ $directory ][ 'size' ];
if ( ! is_array( $dirsize ) )
$dirsize = array();
// Exclude individual site directories from the total when checking the main site,
// as they are subdirectories and should not be counted.
if ( is_main_site() ) {
$dirsize[ $directory ][ 'size' ] = recurse_dirsize( $directory, $directory . '/sites' );
} else {
$dirsize[ $directory ][ 'size' ] = recurse_dirsize( $directory );
}
set_transient( 'dirsize_cache', $dirsize, HOUR_IN_SECONDS );
return $dirsize[ $directory ][ 'size' ];
}
/**
* Get the size of a directory recursively.
*
* Used by get_dirsize() to get a directory's size when it contains
* other directories.
*
* @since MU
* @since 4.3.0 $exclude parameter added.
*
* @param string $directory Full path of a directory.
* @param string $exclude Optional. Full path of a subdirectory to exclude from the total.
* @return int|false Size in MB if a valid directory. False if not.
*/
function recurse_dirsize( $directory, $exclude = null ) {
$size = 0;
$directory = untrailingslashit( $directory );
if ( ! file_exists( $directory ) || ! is_dir( $directory ) || ! is_readable( $directory ) || $directory === $exclude ) {
return false;
}
if ($handle = opendir($directory)) {
while(($file = readdir($handle)) !== false) {
$path = $directory.'/'.$file;
if ($file != '.' && $file != '..') {
if (is_file($path)) {
$size += filesize($path);
} elseif (is_dir($path)) {
$handlesize = recurse_dirsize( $path, $exclude );
if ($handlesize > 0)
$size += $handlesize;
}
}
}
closedir($handle);
}
return $size;
}
/**
* Check an array of MIME types against a whitelist.
*
* WordPress ships with a set of allowed upload filetypes,
* which is defined in wp-includes/functions.php in
* get_allowed_mime_types(). This function is used to filter
* that list against the filetype whitelist provided by Multisite
* Super Admins at wp-admin/network/settings.php.
*
* @since MU
*
* @param array $mimes
* @return array
*/
function check_upload_mimes( $mimes ) {
$site_exts = explode( ' ', get_site_option( 'upload_filetypes', 'jpg jpeg png gif' ) );
$site_mimes = array();
foreach ( $site_exts as $ext ) {
foreach ( $mimes as $ext_pattern => $mime ) {
if ( $ext != '' && strpos( $ext_pattern, $ext ) !== false )
$site_mimes[$ext_pattern] = $mime;
}
}
return $site_mimes;
}
/**
* Update a blog's post count.
*
* WordPress MS stores a blog's post count as an option so as
* to avoid extraneous COUNTs when a blog's details are fetched
* with get_blog_details(). This function is called when posts
* are published or unpublished to make sure the count stays current.
*
* @since MU
*
* @global wpdb $wpdb WordPress database abstraction object.
*/
function update_posts_count( $deprecated = '' ) {
global $wpdb;
update_option( 'post_count', (int) $wpdb->get_var( "SELECT COUNT(ID) FROM {$wpdb->posts} WHERE post_status = 'publish' and post_type = 'post'" ) );
}
/**
* Logs user registrations.
*
* @since MU
*
* @global wpdb $wpdb WordPress database abstraction object.
*
* @param int $blog_id
* @param int $user_id
*/
function wpmu_log_new_registrations( $blog_id, $user_id ) {
global $wpdb;
$user = get_userdata( (int) $user_id );
if ( $user )
$wpdb->insert( $wpdb->registration_log, array('email' => $user->user_email, 'IP' => preg_replace( '/[^0-9., ]/', '', wp_unslash( $_SERVER['REMOTE_ADDR'] ) ), 'blog_id' => $blog_id, 'date_registered' => current_time('mysql')) );
}
/**
* Maintains a canonical list of terms by syncing terms created for each blog with the global terms table.
*
* @since 3.0.0
*
* @see term_id_filter
*
* @global wpdb $wpdb WordPress database abstraction object.
* @staticvar int $global_terms_recurse
*
* @param int $term_id An ID for a term on the current blog.
* @return int An ID from the global terms table mapped from $term_id.
*/
function global_terms( $term_id, $deprecated = '' ) {
global $wpdb;
static $global_terms_recurse = null;
if ( !global_terms_enabled() )
return $term_id;
// prevent a race condition
$recurse_start = false;
if ( $global_terms_recurse === null ) {
$recurse_start = true;
$global_terms_recurse = 1;
} elseif ( 10 < $global_terms_recurse++ ) {
return $term_id;
}
$term_id = intval( $term_id );
$c = $wpdb->get_row( $wpdb->prepare( "SELECT * FROM $wpdb->terms WHERE term_id = %d", $term_id ) );
$global_id = $wpdb->get_var( $wpdb->prepare( "SELECT cat_ID FROM $wpdb->sitecategories WHERE category_nicename = %s", $c->slug ) );
if ( $global_id == null ) {
$used_global_id = $wpdb->get_var( $wpdb->prepare( "SELECT cat_ID FROM $wpdb->sitecategories WHERE cat_ID = %d", $c->term_id ) );
if ( null == $used_global_id ) {
$wpdb->insert( $wpdb->sitecategories, array( 'cat_ID' => $term_id, 'cat_name' => $c->name, 'category_nicename' => $c->slug ) );
$global_id = $wpdb->insert_id;
if ( empty( $global_id ) )
return $term_id;
} else {
$max_global_id = $wpdb->get_var( "SELECT MAX(cat_ID) FROM $wpdb->sitecategories" );
$max_local_id = $wpdb->get_var( "SELECT MAX(term_id) FROM $wpdb->terms" );
$new_global_id = max( $max_global_id, $max_local_id ) + mt_rand( 100, 400 );
$wpdb->insert( $wpdb->sitecategories, array( 'cat_ID' => $new_global_id, 'cat_name' => $c->name, 'category_nicename' => $c->slug ) );
$global_id = $wpdb->insert_id;
}
} elseif ( $global_id != $term_id ) {
$local_id = $wpdb->get_var( $wpdb->prepare( "SELECT term_id FROM $wpdb->terms WHERE term_id = %d", $global_id ) );
if ( null != $local_id ) {
global_terms( $local_id );
if ( 10 < $global_terms_recurse ) {
$global_id = $term_id;
}
}
}
if ( $global_id != $term_id ) {
if ( get_option( 'default_category' ) == $term_id )
update_option( 'default_category', $global_id );
$wpdb->update( $wpdb->terms, array('term_id' => $global_id), array('term_id' => $term_id) );
$wpdb->update( $wpdb->term_taxonomy, array('term_id' => $global_id), array('term_id' => $term_id) );
$wpdb->update( $wpdb->term_taxonomy, array('parent' => $global_id), array('parent' => $term_id) );
clean_term_cache($term_id);
}
if ( $recurse_start )
$global_terms_recurse = null;
return $global_id;
}
/**
* Ensure that the current site's domain is listed in the allowed redirect host list.
*
* @see wp_validate_redirect()
* @since MU
*
* @return array The current site's domain
*/
function redirect_this_site( $deprecated = '' ) {
return array( get_current_site()->domain );
}
/**
* Check whether an upload is too big.
*
* @since MU
*
* @blessed
*
* @param array $upload
* @return string|array If the upload is under the size limit, $upload is returned. Otherwise returns an error message.
*/
function upload_is_file_too_big( $upload ) {
if ( ! is_array( $upload ) || defined( 'WP_IMPORTING' ) || get_site_option( 'upload_space_check_disabled' ) )
return $upload;
if ( strlen( $upload['bits'] ) > ( KB_IN_BYTES * get_site_option( 'fileupload_maxk', 1500 ) ) ) {
return sprintf( __( 'This file is too big. Files must be less than %d KB in size.' ) . '<br />', get_site_option( 'fileupload_maxk', 1500 ) );
}
return $upload;
}
/**
* Add a nonce field to the signup page.
*
* @since MU
*/
function signup_nonce_fields() {
$id = mt_rand();
echo "<input type='hidden' name='signup_form_id' value='{$id}' />";
wp_nonce_field('signup_form_' . $id, '_signup_form', false);
}
/**
* Process the signup nonce created in signup_nonce_fields().
*
* @since MU
*
* @param array $result
* @return array
*/
function signup_nonce_check( $result ) {
if ( !strpos( $_SERVER[ 'PHP_SELF' ], 'wp-signup.php' ) )
return $result;
if ( wp_create_nonce('signup_form_' . $_POST[ 'signup_form_id' ]) != $_POST['_signup_form'] )
wp_die( __( 'Please try again.' ) );
return $result;
}
/**
* Correct 404 redirects when NOBLOGREDIRECT is defined.
*
* @since MU
*/
function maybe_redirect_404() {
/**
* Filter the redirect URL for 404s on the main site.
*
* The filter is only evaluated if the NOBLOGREDIRECT constant is defined.
*
* @since 3.0.0
*
* @param string $no_blog_redirect The redirect URL defined in NOBLOGREDIRECT.
*/
if ( is_main_site() && is_404() && defined( 'NOBLOGREDIRECT' ) && ( $destination = apply_filters( 'blog_redirect_404', NOBLOGREDIRECT ) ) ) {
if ( $destination == '%siteurl%' )
$destination = network_home_url();
wp_redirect( $destination );
exit();
}
}
/**
* Add a new user to a blog by visiting /newbloguser/username/.
*
* This will only work when the user's details are saved as an option
* keyed as 'new_user_x', where 'x' is the username of the user to be
* added, as when a user is invited through the regular WP Add User interface.
*
* @since MU
*/
function maybe_add_existing_user_to_blog() {
if ( false === strpos( $_SERVER[ 'REQUEST_URI' ], '/newbloguser/' ) )
return;
$parts = explode( '/', $_SERVER[ 'REQUEST_URI' ] );
$key = array_pop( $parts );
if ( $key == '' )
$key = array_pop( $parts );
$details = get_option( 'new_user_' . $key );
if ( !empty( $details ) )
delete_option( 'new_user_' . $key );
if ( empty( $details ) || is_wp_error( add_existing_user_to_blog( $details ) ) )
wp_die( sprintf(__('An error occurred adding you to this site. Back to the <a href="%s">homepage</a>.'), home_url() ) );
wp_die( sprintf( __( 'You have been added to this site. Please visit the <a href="%s">homepage</a> or <a href="%s">log in</a> using your username and password.' ), home_url(), admin_url() ), __( 'WordPress › Success' ), array( 'response' => 200 ) );
}
/**
* Add a user to a blog based on details from maybe_add_existing_user_to_blog().
*
* @since MU
*
* @global int $blog_id
*
* @param array $details
* @return true|WP_Error|void
*/
function add_existing_user_to_blog( $details = false ) {
global $blog_id;
if ( is_array( $details ) ) {
$result = add_user_to_blog( $blog_id, $details[ 'user_id' ], $details[ 'role' ] );
/**
* Fires immediately after an existing user is added to a site.
*
* @since MU
*
* @param int $user_id User ID.
* @param mixed $result True on success or a WP_Error object if the user doesn't exist.
*/
do_action( 'added_existing_user', $details['user_id'], $result );
return $result;
}
}
/**
* Add a newly created user to the appropriate blog
*
* To add a user in general, use add_user_to_blog(). This function
* is specifically hooked into the wpmu_activate_user action.
*
* @since MU
* @see add_user_to_blog()
*
* @param int $user_id
* @param mixed $password Ignored.
* @param array $meta
*/
function add_new_user_to_blog( $user_id, $password, $meta ) {
if ( !empty( $meta[ 'add_to_blog' ] ) ) {
$blog_id = $meta[ 'add_to_blog' ];
$role = $meta[ 'new_role' ];
remove_user_from_blog($user_id, get_current_site()->blog_id); // remove user from main blog.
add_user_to_blog( $blog_id, $user_id, $role );
update_user_meta( $user_id, 'primary_blog', $blog_id );
}
}
/**
* Correct From host on outgoing mail to match the site domain
*
* @since MU
*/
function fix_phpmailer_messageid( $phpmailer ) {
$phpmailer->Hostname = get_current_site()->domain;
}
/**
* Check to see whether a user is marked as a spammer, based on user login.
*
* @since MU
*
* @param string|WP_User $user Optional. Defaults to current user. WP_User object,
* or user login name as a string.
* @return bool
*/
function is_user_spammy( $user = null ) {
if ( ! ( $user instanceof WP_User ) ) {
if ( $user ) {
$user = get_user_by( 'login', $user );
} else {
$user = wp_get_current_user();
}
}
return $user && isset( $user->spam ) && 1 == $user->spam;
}
/**
* Update this blog's 'public' setting in the global blogs table.
*
* Public blogs have a setting of 1, private blogs are 0.
*
* @since MU
*
* @param int $old_value
* @param int $value The new public value
*/
function update_blog_public( $old_value, $value ) {
update_blog_status( get_current_blog_id(), 'public', (int) $value );
}
/**
* Check whether a usermeta key has to do with the current blog.
*
* @since MU
*
* @global wpdb $wpdb WordPress database abstraction object.
*
* @param string $key
* @param int $user_id Optional. Defaults to current user.
* @param int $blog_id Optional. Defaults to current blog.
* @return bool
*/
function is_user_option_local( $key, $user_id = 0, $blog_id = 0 ) {
global $wpdb;
$current_user = wp_get_current_user();
if ( $blog_id == 0 ) {
$blog_id = $wpdb->blogid;
}
$local_key = $wpdb->get_blog_prefix( $blog_id ) . $key;
return isset( $current_user->$local_key );
}
/**
* Check whether users can self-register, based on Network settings.
*
* @since MU
*
* @return bool
*/
function users_can_register_signup_filter() {
$registration = get_site_option('registration');
return ( $registration == 'all' || $registration == 'user' );
}
/**
* Ensure that the welcome message is not empty. Currently unused.
*
* @since MU
*
* @param string $text
* @return string
*/
function welcome_user_msg_filter( $text ) {
if ( !$text ) {
remove_filter( 'site_option_welcome_user_email', 'welcome_user_msg_filter' );
/* translators: Do not translate USERNAME, PASSWORD, LOGINLINK, SITE_NAME: those are placeholders. */
$text = __( 'Howdy USERNAME,
Your new account is set up.
You can log in with the following information:
Username: USERNAME
Password: PASSWORD
LOGINLINK
Thanks!
--The Team @ SITE_NAME' );
update_site_option( 'welcome_user_email', $text );
}
return $text;
}
/**
* Whether to force SSL on content.
*
* @since 2.8.5
*
* @staticvar bool $forced_content
*
* @param bool $force
* @return bool True if forced, false if not forced.
*/
function force_ssl_content( $force = '' ) {
static $forced_content = false;
if ( '' != $force ) {
$old_forced = $forced_content;
$forced_content = $force;
return $old_forced;
}
return $forced_content;
}
/**
* Formats a URL to use https.
*
* Useful as a filter.
*
* @since 2.8.5
*
* @param string URL
* @return string URL with https as the scheme
*/
function filter_SSL( $url ) {
if ( ! is_string( $url ) )
return get_bloginfo( 'url' ); // Return home blog url with proper scheme
if ( force_ssl_content() && is_ssl() )
$url = set_url_scheme( $url, 'https' );
return $url;
}
/**
* Schedule update of the network-wide counts for the current network.
*
* @since 3.1.0
*/
function wp_schedule_update_network_counts() {
if ( !is_main_site() )
return;
if ( ! wp_next_scheduled('update_network_counts') && ! wp_installing() )
wp_schedule_event(time(), 'twicedaily', 'update_network_counts');
}
/**
* Update the network-wide counts for the current network.
*
* @since 3.1.0
*/
function wp_update_network_counts() {
wp_update_network_user_counts();
wp_update_network_site_counts();
}
/**
* Update the count of sites for the current network.
*
* If enabled through the 'enable_live_network_counts' filter, update the sites count
* on a network when a site is created or its status is updated.
*
* @since 3.7.0
*/
function wp_maybe_update_network_site_counts() {
$is_small_network = ! wp_is_large_network( 'sites' );
/**
* Filter whether to update network site or user counts when a new site is created.
*
* @since 3.7.0
*
* @see wp_is_large_network()
*
* @param bool $small_network Whether the network is considered small.
* @param string $context Context. Either 'users' or 'sites'.
*/
if ( ! apply_filters( 'enable_live_network_counts', $is_small_network, 'sites' ) )
return;
wp_update_network_site_counts();
}
/**
* Update the network-wide users count.
*
* If enabled through the 'enable_live_network_counts' filter, update the users count
* on a network when a user is created or its status is updated.
*
* @since 3.7.0
*/
function wp_maybe_update_network_user_counts() {
$is_small_network = ! wp_is_large_network( 'users' );
/** This filter is documented in wp-includes/ms-functions.php */
if ( ! apply_filters( 'enable_live_network_counts', $is_small_network, 'users' ) )
return;
wp_update_network_user_counts();
}
/**
* Update the network-wide site count.
*
* @since 3.7.0
*
* @global wpdb $wpdb WordPress database abstraction object.
*/
function wp_update_network_site_counts() {
global $wpdb;
$count = $wpdb->get_var( $wpdb->prepare("SELECT COUNT(blog_id) as c FROM $wpdb->blogs WHERE site_id = %d AND spam = '0' AND deleted = '0' and archived = '0'", $wpdb->siteid) );
update_site_option( 'blog_count', $count );
}
/**
* Update the network-wide user count.
*
* @since 3.7.0
*
* @global wpdb $wpdb WordPress database abstraction object.
*/
function wp_update_network_user_counts() {
global $wpdb;
$count = $wpdb->get_var( "SELECT COUNT(ID) as c FROM $wpdb->users WHERE spam = '0' AND deleted = '0'" );
update_site_option( 'user_count', $count );
}
/**
* Returns the space used by the current blog.
*
* @since 3.5.0
*
* @return int Used space in megabytes
*/
function get_space_used() {
/**
* Filter the amount of storage space used by the current site.
*
* @since 3.5.0
*
* @param int|bool $space_used The amount of used space, in megabytes. Default false.
*/
$space_used = apply_filters( 'pre_get_space_used', false );
if ( false === $space_used ) {
$upload_dir = wp_upload_dir();
$space_used = get_dirsize( $upload_dir['basedir'] ) / MB_IN_BYTES;
}
return $space_used;
}
/**
* Returns the upload quota for the current blog.
*
* @since MU
*
* @return int Quota in megabytes
*/
function get_space_allowed() {
$space_allowed = get_option( 'blog_upload_space' );
if ( ! is_numeric( $space_allowed ) )
$space_allowed = get_site_option( 'blog_upload_space' );
if ( ! is_numeric( $space_allowed ) )
$space_allowed = 100;
/**
* Filter the upload quota for the current site.
*
* @since 3.7.0
*
* @param int $space_allowed Upload quota in megabytes for the current blog.
*/
return apply_filters( 'get_space_allowed', $space_allowed );
}
/**
* Determines if there is any upload space left in the current blog's quota.
*
* @since 3.0.0
*
* @return int of upload space available in bytes
*/
function get_upload_space_available() {
$allowed = get_space_allowed();
if ( $allowed < 0 ) {
$allowed = 0;
}
$space_allowed = $allowed * MB_IN_BYTES;
if ( get_site_option( 'upload_space_check_disabled' ) )
return $space_allowed;
$space_used = get_space_used() * MB_IN_BYTES;
if ( ( $space_allowed - $space_used ) <= 0 )
return 0;
return $space_allowed - $space_used;
}
/**
* Determines if there is any upload space left in the current blog's quota.
*
* @since 3.0.0
* @return bool True if space is available, false otherwise.
*/
function is_upload_space_available() {
if ( get_site_option( 'upload_space_check_disabled' ) )
return true;
return (bool) get_upload_space_available();
}
/**
* @since 3.0.0
*
* @return int of upload size limit in bytes
*/
function upload_size_limit_filter( $size ) {
$fileupload_maxk = KB_IN_BYTES * get_site_option( 'fileupload_maxk', 1500 );
if ( get_site_option( 'upload_space_check_disabled' ) )
return min( $size, $fileupload_maxk );
return min( $size, $fileupload_maxk, get_upload_space_available() );
}
/**
* Whether or not we have a large network.
*
* The default criteria for a large network is either more than 10,000 users or more than 10,000 sites.
* Plugins can alter this criteria using the 'wp_is_large_network' filter.
*
* @since 3.3.0
* @param string $using 'sites or 'users'. Default is 'sites'.
* @return bool True if the network meets the criteria for large. False otherwise.
*/
function wp_is_large_network( $using = 'sites' ) {
if ( 'users' == $using ) {
$count = get_user_count();
/**
* Filter whether the network is considered large.
*
* @since 3.3.0
*
* @param bool $is_large_network Whether the network has more than 10000 users or sites.
* @param string $component The component to count. Accepts 'users', or 'sites'.
* @param int $count The count of items for the component.
*/
return apply_filters( 'wp_is_large_network', $count > 10000, 'users', $count );
}
$count = get_blog_count();
/** This filter is documented in wp-includes/ms-functions.php */
return apply_filters( 'wp_is_large_network', $count > 10000, 'sites', $count );
}
/**
* Return an array of sites for a network or networks.
*
* @since 3.7.0
*
* @global wpdb $wpdb WordPress database abstraction object.
*
* @param array $args {
* Array of default arguments. Optional.
*
* @type int|array $network_id A network ID or array of network IDs. Set to null to retrieve sites
* from all networks. Defaults to current network ID.
* @type int $public Retrieve public or non-public sites. Default null, for any.
* @type int $archived Retrieve archived or non-archived sites. Default null, for any.
* @type int $mature Retrieve mature or non-mature sites. Default null, for any.
* @type int $spam Retrieve spam or non-spam sites. Default null, for any.
* @type int $deleted Retrieve deleted or non-deleted sites. Default null, for any.
* @type int $limit Number of sites to limit the query to. Default 100.
* @type int $offset Exclude the first x sites. Used in combination with the $limit parameter. Default 0.
* }
* @return array An empty array if the install is considered "large" via wp_is_large_network(). Otherwise,
* an associative array of site data arrays, each containing the site (network) ID, blog ID,
* site domain and path, dates registered and modified, and the language ID. Also, boolean
* values for whether the site is public, archived, mature, spam, and/or deleted.
*/
function wp_get_sites( $args = array() ) {
global $wpdb;
if ( wp_is_large_network() )
return array();
$defaults = array(
'network_id' => $wpdb->siteid,
'public' => null,
'archived' => null,
'mature' => null,
'spam' => null,
'deleted' => null,
'limit' => 100,
'offset' => 0,
);
$args = wp_parse_args( $args, $defaults );
$query = "SELECT * FROM $wpdb->blogs WHERE 1=1 ";
if ( isset( $args['network_id'] ) && ( is_array( $args['network_id'] ) || is_numeric( $args['network_id'] ) ) ) {
$network_ids = implode( ',', wp_parse_id_list( $args['network_id'] ) );
$query .= "AND site_id IN ($network_ids) ";
}
if ( isset( $args['public'] ) )
$query .= $wpdb->prepare( "AND public = %d ", $args['public'] );
if ( isset( $args['archived'] ) )
$query .= $wpdb->prepare( "AND archived = %d ", $args['archived'] );
if ( isset( $args['mature'] ) )
$query .= $wpdb->prepare( "AND mature = %d ", $args['mature'] );
if ( isset( $args['spam'] ) )
$query .= $wpdb->prepare( "AND spam = %d ", $args['spam'] );
if ( isset( $args['deleted'] ) )
$query .= $wpdb->prepare( "AND deleted = %d ", $args['deleted'] );
if ( isset( $args['limit'] ) && $args['limit'] ) {
if ( isset( $args['offset'] ) && $args['offset'] )
$query .= $wpdb->prepare( "LIMIT %d , %d ", $args['offset'], $args['limit'] );
else
$query .= $wpdb->prepare( "LIMIT %d ", $args['limit'] );
}
$site_results = $wpdb->get_results( $query, ARRAY_A );
return $site_results;
}
/**
* Retrieves a list of reserved site on a sub-directory Multisite install.
*
* @since 4.4.0
*
* @return array $names Array of reserved subdirectory names.
*/
function get_subdirectory_reserved_names() {
$names = array(
'page', 'comments', 'blog', 'files', 'feed', 'wp-admin',
'wp-content', 'wp-includes', 'wp-json', 'embed'
);
/**
* Filter reserved site names on a sub-directory Multisite install.
*
* @since 3.0.0
* @since 4.4.0 'wp-admin', 'wp-content', 'wp-includes', 'wp-json', and 'embed' were added
* to the reserved names list.
*
* @param array $subdirectory_reserved_names Array of reserved names.
*/
return apply_filters( 'subdirectory_reserved_names', $names );
}
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