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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 (3.0.0) * * @return int[] { * Site and user count for the network. * * @type int $blogs Number of sites on the network. * @type int $users Number of users on the network. * } */ function get_sitestats() { $stats = array( 'blogs' => get_blog_count(), 'users' => get_user_count(), ); return $stats; } /** * Gets 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 (3.0.0) * * @param int $user_id The unique ID of the user * @return WP_Site|void The blog object */ function get_active_blog_for_user( $user_id ) { $blogs = get_blogs_of_user( $user_id ); if ( empty( $blogs ) ) { return; } if ( ! is_multisite() ) { return $blogs[ get_current_blog_id() ]; } $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_site( $first_blog->userblog_id ); } else { $primary = get_site( $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? $result = add_user_to_blog( $first_blog->userblog_id, $user_id, 'subscriber' ); if ( ! is_wp_error( $result ) ) { update_user_meta( $user_id, 'primary_blog', $first_blog->userblog_id ); $primary = $first_blog; } } if ( ( ! is_object( $primary ) ) || ( 1 == $primary->archived || 1 == $primary->spam || 1 == $primary->deleted ) ) { $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 ( get_current_network_id() != $blog->site_id ) { continue; } $details = get_site( $blog_id ); if ( is_object( $details ) && 0 == $details->archived && 0 == $details->spam && 0 == $details->deleted ) { $ret = $details; 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', $details->domain ); } break; } } } else { return; } return $ret; } else { return $primary; } } /** * Gets the number of active sites on the installation. * * The count is cached and updated twice daily. This is not a live count. * * @since MU (3.0.0) * @since 3.7.0 The `$network_id` parameter has been deprecated. * @since 4.8.0 The `$network_id` parameter is now being used. * * @param int|null $network_id ID of the network. Default is the current network. * @return int Number of active sites on the network. */ function get_blog_count( $network_id = null ) { return get_network_option( $network_id, 'blog_count' ); } /** * Gets a blog post from any site on the network. * * This function is similar to get_post(), except that it can retrieve a post * from any site on the network, not just the current site. * * @since MU (3.0.0) * * @param int $blog_id ID of the blog. * @param int $post_id ID of the post being looked for. * @return WP_Post|null WP_Post object on success, 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; } /** * Adds a user to a blog, along with specifying the user's role. * * Use the {@see 'add_user_to_blog'} action to fire an event when users are added to a blog. * * @since MU (3.0.0) * * @param int $blog_id ID of the blog the user is being added to. * @param int $user_id ID of the user being added. * @param string $role User role. * @return true|WP_Error True on success or a WP_Error object if the user doesn't exist * or could not be added. */ 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.' ) ); } /** * Filters whether a user should be added to a site. * * @since 4.9.0 * * @param true|WP_Error $retval True if the user should be added to the site, error * object otherwise. * @param int $user_id User ID. * @param string $role User role. * @param int $blog_id Site ID. */ $can_add_user = apply_filters( 'can_add_user_to_blog', true, $user_id, $role, $blog_id ); if ( true !== $can_add_user ) { restore_current_blog(); if ( is_wp_error( $can_add_user ) ) { return $can_add_user; } return new WP_Error( 'user_cannot_be_added', __( 'User cannot be added to this site.' ) ); } if ( ! get_user_meta( $user_id, 'primary_blog', true ) ) { update_user_meta( $user_id, 'primary_blog', $blog_id ); $site = get_site( $blog_id ); update_user_meta( $user_id, 'source_domain', $site->domain ); } $user->set_role( $role ); /** * Fires immediately after a user is added to a site. * * @since MU (3.0.0) * * @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 ); clean_user_cache( $user_id ); wp_cache_delete( $blog_id . '_user_count', 'blog-details' ); restore_current_blog(); return true; } /** * Removes a user from a blog. * * Use the {@see 'remove_user_from_blog'} action to fire an event when * users are removed from a blog. * * Accepts an optional `$reassign` parameter, if you want to * reassign the user's blog posts to another user upon removal. * * @since MU (3.0.0) * * @global wpdb $wpdb WordPress database abstraction object. * * @param int $user_id ID of the user being removed. * @param int $blog_id Optional. ID of the blog the user is being removed from. Default 0. * @param int $reassign Optional. ID of the user to whom to reassign posts. Default 0. * @return true|WP_Error True on success or a WP_Error object if the user doesn't exist. */ function remove_user_from_blog( $user_id, $blog_id = 0, $reassign = 0 ) { global $wpdb; switch_to_blog( $blog_id ); $user_id = (int) $user_id; /** * Fires before a user is removed from a site. * * @since MU (3.0.0) * @since 5.4.0 Added the `$reassign` parameter. * * @param int $user_id ID of the user being removed. * @param int $blog_id ID of the blog the user is being removed from. * @param int $reassign ID of the user to whom to reassign posts. */ do_action( 'remove_user_from_blog', $user_id, $blog_id, $reassign ); /* * 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 ); } $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' ); } } clean_user_cache( $user_id ); restore_current_blog(); return true; } /** * Gets the permalink for a post on another blog. * * @since MU (3.0.0) 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; } /** * Gets 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 (3.0.0) * * @global wpdb $wpdb WordPress database abstraction object. * * @param string $domain Website domain. * @param string $path Optional. Not required for subdomain installations. Default '/'. * @return int 0 if no blog found, otherwise the ID of the matching blog. */ function get_blog_id_from_url( $domain, $path = '/' ) { $domain = strtolower( $domain ); $path = strtolower( $path ); $id = wp_cache_get( md5( $domain . $path ), 'blog-id-cache' ); if ( -1 == $id ) { // Blog does not exist. return 0; } elseif ( $id ) { return (int) $id; } $args = array( 'domain' => $domain, 'path' => $path, 'fields' => 'ids', 'number' => 1, 'update_site_meta_cache' => false, ); $result = get_sites( $args ); $id = array_shift( $result ); 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 (3.0.0) * * @param string $user_email The email provided by the user at registration. * @return bool True when the email address is banned, false otherwise. */ 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 ) && false !== strpos( $user_email, '@', 1 ) ) { $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; } if ( str_ends_with( $normalized_email, ".$banned_domain" ) ) { $is_email_address_unsafe = true; break; } } } /** * Filters 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 ); } /** * Sanitizes and validates data required for a user sign-up. * * Verifies the validity and uniqueness of user names and user email addresses, * and checks email addresses against allowed and disallowed domains provided by * administrators. * * 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 (3.0.0) * * @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 { * 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. * } */ 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, true ) ) { $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 ), true ) ) { $errors->add( 'user_name', __( 'Sorry, that username is not allowed.' ) ); } if ( ! is_email( $user_email ) ) { $errors->add( 'user_email', __( 'Please enter a valid email address.' ) ); } elseif ( is_email_address_unsafe( $user_email ) ) { $errors->add( 'user_email', __( 'You cannot use that email address to signup. There are problems with them blocking some emails from WordPress. 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!' ) ); } $limited_email_domains = get_site_option( 'limited_email_domains' ); if ( is_array( $limited_email_domains ) && ! empty( $limited_email_domains ) ) { $limited_email_domains = array_map( 'strtolower', $limited_email_domains ); $emaildomain = strtolower( substr( $user_email, 1 + strpos( $user_email, '@' ) ) ); if ( ! in_array( $emaildomain, $limited_email_domains, true ) ) { $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', sprintf( /* translators: %s: Link to the login page. */ __( '<strong>Error:</strong> This email address is already registered. <a href="%s">Log in</a> with this address or choose another one.' ), wp_login_url() ) ); } // 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 instanceof stdClass ) { $registered_at = mysql2date( 'U', $signup->registered ); $now = time(); $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 instanceof stdClass ) { $diff = time() - 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, ); /** * Filters 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 (3.0.0) * * @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 {@see 'wpmu_validate_blog_signup'} if you want to modify * the way that WordPress validates new site signups. * * @since MU (3.0.0) * * @global wpdb $wpdb WordPress database abstraction object. * @global string $domain * * @param string $blogname The site name provided by the user. Must be unique. * @param string $blog_title The site title provided by the user. * @param WP_User|string $user Optional. The user object to check against the new site name. * Default empty string. * @return array { * Array of domain, path, site name, site title, user and error messages. * * @type string $domain Domain for the site. * @type string $path Path for the site. Used in subdirectory installations. * @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. * } */ function wpmu_validate_blog_signup( $blogname, $blog_title, $user = '' ) { global $wpdb, $domain; $current_network = get_network(); $base = $current_network->path; $blog_title = strip_tags( $blog_title ); $errors = new WP_Error(); $illegal_names = get_site_option( 'illegal_names' ); if ( false == $illegal_names ) { $illegal_names = array( 'www', 'web', 'root', 'admin', 'main', 'invite', 'administrator' ); add_site_option( 'illegal_names', $illegal_names ); } /* * On sub dir installations, 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, true ) ) { $errors->add( 'blogname', __( 'That name is not allowed.' ) ); } /** * Filters the minimum site name length required when validating a site signup. * * @since 4.8.0 * * @param int $length The minimum site name length. Default 4. */ $minimum_site_name_length = apply_filters( 'minimum_site_name_length', 4 ); if ( strlen( $blogname ) < $minimum_site_name_length ) { /* translators: %s: Minimum site name length. */ $errors->add( 'blogname', sprintf( _n( 'Site name must be at least %s character.', 'Site name must be at least %s characters.', $minimum_site_name_length ), number_format_i18n( $minimum_site_name_length ) ) ); } // Do not allow users to create a site 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_network->site_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!' ) ); } /** * Filters 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 (3.0.0) * * @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_network->id ) ) { $errors->add( 'blogname', __( 'Sorry, that site already exists!' ) ); } /* * Do not allow users to create a site that matches an existing user's login name, * unless it's the user's own username. */ 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? * TODO: Check email too? */ $signup = $wpdb->get_row( $wpdb->prepare( "SELECT * FROM $wpdb->signups WHERE domain = %s AND path = %s", $mydomain, $path ) ); if ( $signup instanceof stdClass ) { $diff = time() - 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, ); /** * Filters site details and error messages following registration. * * @since MU (3.0.0) * * @param array $result { * Array of domain, path, site name, site title, user and error messages. * * @type string $domain Domain for the site. * @type string $path Path for the site. Used in subdirectory installations. * @type string $blogname The unique site name (slug). * @type string $blog_title Site 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 ); } /** * Records site signup information for future activation. * * @since MU (3.0.0) * * @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 Optional. Signup meta data. 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() . wp_rand() . $domain ), 0, 16 ); /** * Filters the metadata for a site signup. * * The metadata will be serialized prior to storing it in the database. * * @since 4.8.0 * * @param array $meta Signup meta data. Default empty array. * @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. */ $meta = apply_filters( 'signup_site_meta', $meta, $domain, $path, $title, $user, $user_email, $key ); $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' => serialize( $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 Signup meta data. By default, contains the requested privacy setting and lang_id. */ do_action( 'after_signup_site', $domain, $path, $title, $user, $user_email, $key, $meta ); } /** * Records user signup information for future activation. * * This function is used when user registration is open but * new site registration is not. * * @since MU (3.0.0) * * @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 Optional. Signup meta data. Default 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() . wp_rand() . $user_email ), 0, 16 ); /** * Filters the metadata for a user signup. * * The metadata will be serialized prior to storing it in the database. * * @since 4.8.0 * * @param array $meta Signup meta data. Default empty array. * @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. */ $meta = apply_filters( 'signup_user_meta', $meta, $user, $user_email, $key ); $wpdb->insert( $wpdb->signups, array( 'domain' => '', 'path' => '', 'title' => '', 'user_login' => $user, 'user_email' => $user_email, 'registered' => current_time( 'mysql', true ), 'activation_key' => $key, 'meta' => serialize( $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 Signup meta data. Default empty array. */ do_action( 'after_signup_user', $user, $user_email, $key, $meta ); } /** * Sends a confirmation request email to a user when they sign up for a new site. The new site will not become active * until the confirmation link is clicked. * * This is the notification function used when site registration * is enabled. * * Filter {@see 'wpmu_signup_blog_notification'} to bypass this function or * replace it with your own notification behavior. * * Filter {@see 'wpmu_signup_blog_notification_email'} and * {@see 'wpmu_signup_blog_notification_subject'} to change the content * and subject line of the email sent to newly registered users. * * @since MU (3.0.0) * * @param string $domain The new blog domain. * @param string $path The new blog path. * @param string $title The site title. * @param string $user_login 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 Optional. Signup meta data. By default, contains the requested privacy setting and lang_id. * @return bool */ function wpmu_signup_blog_notification( $domain, $path, $title, $user_login, $user_email, $key, $meta = array() ) { /** * Filters whether to bypass the new site email notification. * * @since MU (3.0.0) * * @param string|false $domain Site domain, or false to prevent the email from sending. * @param string $path Site path. * @param string $title Site title. * @param string $user_login User login name. * @param string $user_email User email address. * @param string $key Activation key created in wpmu_signup_blog(). * @param array $meta Signup meta data. By default, contains the requested privacy setting and lang_id. */ if ( ! apply_filters( 'wpmu_signup_blog_notification', $domain, $path, $title, $user_login, $user_email, $key, $meta ) ) { return false; } // Send email with activation link. if ( ! is_subdomain_install() || get_current_network_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@' . wp_parse_url( network_home_url(), PHP_URL_HOST ); } $from_name = ( '' !== get_site_option( 'site_name' ) ) ? esc_html( get_site_option( 'site_name' ) ) : 'WordPress'; $message_headers = "From: \"{$from_name}\" <{$admin_email}>\n" . 'Content-Type: text/plain; charset="' . get_option( 'blog_charset' ) . "\"\n"; $user = get_user_by( 'login', $user_login ); $switched_locale = $user && switch_to_user_locale( $user->ID ); $message = sprintf( /** * Filters the message content of the new blog notification email. * * Content should be formatted for transmission via wp_mail(). * * @since MU (3.0.0) * * @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_login User login name. * @param string $user_email User email address. * @param string $key Activation key created in wpmu_signup_blog(). * @param array $meta Signup meta data. By default, contains the requested privacy setting and lang_id. */ apply_filters( 'wpmu_signup_blog_notification_email', /* translators: New site notification email. 1: Activation URL, 2: New site URL. */ __( "To activate your site, please click the following link:\n\n%1\$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%2\$s" ), $domain, $path, $title, $user_login, $user_email, $key, $meta ), $activate_url, esc_url( "http://{$domain}{$path}" ), $key ); $subject = sprintf( /** * Filters the subject of the new blog notification email. * * @since MU (3.0.0) * * @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_login User login name. * @param string $user_email User email address. * @param string $key Activation key created in wpmu_signup_blog(). * @param array $meta Signup meta data. By default, contains the requested privacy setting and lang_id. */ apply_filters( 'wpmu_signup_blog_notification_subject', /* translators: New site notification email subject. 1: Network title, 2: New site URL. */ _x( '[%1$s] Activate %2$s', 'New site notification email subject' ), $domain, $path, $title, $user_login, $user_email, $key, $meta ), $from_name, esc_url( 'http://' . $domain . $path ) ); wp_mail( $user_email, wp_specialchars_decode( $subject ), $message, $message_headers ); if ( $switched_locale ) { restore_previous_locale(); } return true; } /** * Sends a confirmation request email to a user when they sign up for a new user account (without signing up for a site * at the same time). The user account will not become active until the confirmation link is clicked. * * This is the notification function used when no new site has * been requested. * * Filter {@see 'wpmu_signup_user_notification'} to bypass this function or * replace it with your own notification behavior. * * Filter {@see 'wpmu_signup_user_notification_email'} and * {@see 'wpmu_signup_user_notification_subject'} to change the content * and subject line of the email sent to newly registered users. * * @since MU (3.0.0) * * @param string $user_login 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 Optional. Signup meta data. Default empty array. * @return bool */ function wpmu_signup_user_notification( $user_login, $user_email, $key, $meta = array() ) { /** * Filters whether to bypass the email notification for new user sign-up. * * @since MU (3.0.0) * * @param string $user_login 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. Default empty array. */ if ( ! apply_filters( 'wpmu_signup_user_notification', $user_login, $user_email, $key, $meta ) ) { return false; } $user = get_user_by( 'login', $user_login ); $switched_locale = $user && switch_to_user_locale( $user->ID ); // Send email with activation link. $admin_email = get_site_option( 'admin_email' ); if ( '' === $admin_email ) { $admin_email = 'support@' . wp_parse_url( network_home_url(), PHP_URL_HOST ); } $from_name = ( '' !== get_site_option( 'site_name' ) ) ? esc_html( get_site_option( 'site_name' ) ) : 'WordPress'; $message_headers = "From: \"{$from_name}\" <{$admin_email}>\n" . 'Content-Type: text/plain; charset="' . get_option( 'blog_charset' ) . "\"\n"; $message = sprintf( /** * Filters the content of the notification email for new user sign-up. * * Content should be formatted for transmission via wp_mail(). * * @since MU (3.0.0) * * @param string $content Content of the notification email. * @param string $user_login 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. Default empty array. */ apply_filters( 'wpmu_signup_user_notification_email', /* translators: New user notification email. %s: Activation URL. */ __( "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_login, $user_email, $key, $meta ), site_url( "wp-activate.php?key=$key" ) ); $subject = sprintf( /** * Filters the subject of the notification email of new user signup. * * @since MU (3.0.0) * * @param string $subject Subject of the notification email. * @param string $user_login User login name. * @param string $user_email User email address. * @param string $key Activation key created in wpmu_signup_user(). * @param array $meta Signup meta data. Default empty array. */ apply_filters( 'wpmu_signup_user_notification_subject', /* translators: New user notification email subject. 1: Network title, 2: New user login. */ _x( '[%1$s] Activate %2$s', 'New user notification email subject' ), $user_login, $user_email, $key, $meta ), $from_name, $user_login ); wp_mail( $user_email, wp_specialchars_decode( $subject ), $message, $message_headers ); if ( $switched_locale ) { restore_previous_locale(); } return true; } /** * Activates a signup. * * Hook to {@see 'wpmu_activate_user'} or {@see '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 (3.0.0) * * @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 (3.0.0) * * @param int $user_id User ID. * @param string $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, get_current_network_id() ); // 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 (3.0.0) * * @param int $blog_id Blog ID. * @param int $user_id User ID. * @param string $password User password. * @param string $signup_title Site title. * @param array $meta Signup meta data. By default, contains the requested privacy setting and lang_id. */ 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, ); } /** * Deletes an associated signup entry when a user is deleted from the database. * * @since 5.5.0 * * @global wpdb $wpdb WordPress database abstraction object. * * @param int $id ID of the user to delete. * @param int|null $reassign ID of the user to reassign posts and links to. * @param WP_User $user User object. */ function wp_delete_signup_on_user_delete( $id, $reassign, $user ) { global $wpdb; $wpdb->delete( $wpdb->signups, array( 'user_login' => $user->user_login ) ); } /** * Creates a user. * * This function runs when a user self-registers as well as when * a Super Admin creates a new user. Hook to {@see 'wpmu_new_user'} for events * that should affect all new users, but only on Multisite (otherwise * use {@see 'user_register'}). * * @since MU (3.0.0) * * @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 (3.0.0) * * @param int $user_id User ID. */ do_action( 'wpmu_new_user', $user_id ); return $user_id; } /** * Creates 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 {@see 'wpmu_new_blog'} * for events that should affect all new sites. * * On subdirectory installations, $domain is the same as the main site's * domain, and the path is the subdirectory name (eg 'example.com' * and '/blog1/'). On subdomain installations, $domain is the new subdomain + * root domain (eg 'blog1.example.com'), and $path is '/'. * * @since MU (3.0.0) * * @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 $options Optional. Array of key=>value pairs used to set initial site options. * If valid status keys are included ('public', 'archived', 'mature', * 'spam', 'deleted', or 'lang_id') the given site status(es) will be * updated. Otherwise, keys and values will be used to set options for * the new site. Default empty array. * @param int $network_id Optional. Network ID. Only relevant on multi-network installations. * Default 1. * @return int|WP_Error Returns WP_Error object on failure, the new site ID on success. */ function wpmu_create_blog( $domain, $path, $title, $user_id, $options = array(), $network_id = 1 ) { $defaults = array( 'public' => 0, ); $options = wp_parse_args( $options, $defaults ); $title = strip_tags( $title ); $user_id = (int) $user_id; // Check if the domain has been used already. We should return an error message. if ( domain_exists( $domain, $path, $network_id ) ) { return new WP_Error( 'blog_taken', __( 'Sorry, that site already exists!' ) ); } if ( ! wp_installing() ) { wp_installing( true ); } $allowed_data_fields = array( 'public', 'archived', 'mature', 'spam', 'deleted', 'lang_id' ); $site_data = array_merge( array( 'domain' => $domain, 'path' => $path, 'network_id' => $network_id, ), array_intersect_key( $options, array_flip( $allowed_data_fields ) ) ); // Data to pass to wp_initialize_site(). $site_initialization_data = array( 'title' => $title, 'user_id' => $user_id, 'options' => array_diff_key( $options, array_flip( $allowed_data_fields ) ), ); $blog_id = wp_insert_site( array_merge( $site_data, $site_initialization_data ) ); if ( is_wp_error( $blog_id ) ) { return $blog_id; } wp_cache_set_sites_last_changed(); return $blog_id; } /** * Notifies the network admin that a new site has been activated. * * Filter {@see 'newblog_notify_siteadmin'} to change the content of * the notification email. * * @since MU (3.0.0) * @since 5.1.0 $blog_id now supports input from the {@see 'wp_initialize_site'} action. * * @param WP_Site|int $blog_id The new site's object or ID. * @param string $deprecated Not used. * @return bool */ function newblog_notify_siteadmin( $blog_id, $deprecated = '' ) { if ( is_object( $blog_id ) ) { $blog_id = $blog_id->blog_id; } if ( 'yes' !== get_site_option( 'registrationnotification' ) ) { 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(); $msg = sprintf( /* translators: New site notification email. 1: Site URL, 2: User IP address, 3: URL to Network Settings screen. */ __( 'New Site: %1$s URL: %2$s Remote IP address: %3$s Disable these notifications: %4$s' ), $blogname, $siteurl, wp_unslash( $_SERVER['REMOTE_ADDR'] ), $options_site_url ); /** * Filters the message body of the new site activation email sent * to the network administrator. * * @since MU (3.0.0) * @since 5.4.0 The `$blog_id` parameter was added. * * @param string $msg Email body. * @param int|string $blog_id The new site's ID as an integer or numeric string. */ $msg = apply_filters( 'newblog_notify_siteadmin', $msg, $blog_id ); /* translators: New site notification email subject. %s: New site URL. */ wp_mail( $email, sprintf( __( 'New Site Registration: %s' ), $siteurl ), $msg ); return true; } /** * Notifies the network admin that a new user has been activated. * * Filter {@see 'newuser_notify_siteadmin'} to change the content of * the notification email. * * @since MU (3.0.0) * * @param int $user_id The new user's ID. * @return bool */ function newuser_notify_siteadmin( $user_id ) { if ( 'yes' !== get_site_option( 'registrationnotification' ) ) { 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' ) ); $msg = sprintf( /* translators: New user notification email. 1: User login, 2: User IP address, 3: URL to Network Settings screen. */ __( 'New User: %1$s Remote IP address: %2$s Disable these notifications: %3$s' ), $user->user_login, wp_unslash( $_SERVER['REMOTE_ADDR'] ), $options_site_url ); /** * Filters the message body of the new user activation email sent * to the network administrator. * * @since MU (3.0.0) * * @param string $msg Email body. * @param WP_User $user WP_User instance of the new user. */ $msg = apply_filters( 'newuser_notify_siteadmin', $msg, $user ); /* translators: New user notification email subject. %s: User login. */ wp_mail( $email, sprintf( __( 'New User Registration: %s' ), $user->user_login ), $msg ); return true; } /** * Checks whether a site name is already taken. * * The name is the site's subdomain or the site's subdirectory * path depending on the network settings. * * Used during the new site registration process to ensure * that each site name is unique. * * @since MU (3.0.0) * * @param string $domain The domain to be checked. * @param string $path The path to be checked. * @param int $network_id Optional. Network ID. Only relevant on multi-network installations. * Default 1. * @return int|null The site ID if the site name exists, null otherwise. */ function domain_exists( $domain, $path, $network_id = 1 ) { $path = trailingslashit( $path ); $args = array( 'network_id' => $network_id, 'domain' => $domain, 'path' => $path, 'fields' => 'ids', 'number' => 1, 'update_site_meta_cache' => false, ); $result = get_sites( $args ); $result = array_shift( $result ); /** * Filters whether a site name is taken. * * The name is the site's subdomain or the site's subdirectory * path depending on the network settings. * * @since 3.5.0 * * @param int|null $result The site ID if the site name exists, null otherwise. * @param string $domain Domain to be checked. * @param string $path Path to be checked. * @param int $network_id Network ID. Only relevant on multi-network installations. */ return apply_filters( 'domain_exists', $result, $domain, $path, $network_id ); } /** * Notifies the site administrator that their site activation was successful. * * Filter {@see 'wpmu_welcome_notification'} to disable or bypass. * * Filter {@see 'update_welcome_email'} and {@see 'update_welcome_subject'} to * modify the content and subject line of the notification email. * * @since MU (3.0.0) * * @param int $blog_id Site ID. * @param int $user_id User ID. * @param string $password User password, or "N/A" if the user account is not new. * @param string $title Site title. * @param array $meta Optional. Signup meta data. By default, contains the requested privacy setting and lang_id. * @return bool Whether the email notification was sent. */ function wpmu_welcome_notification( $blog_id, $user_id, $password, $title, $meta = array() ) { $current_network = get_network(); /** * Filters whether to bypass the welcome email sent to the site administrator after site activation. * * Returning false disables the welcome email. * * @since MU (3.0.0) * * @param int|false $blog_id Site ID, or false to prevent the email from sending. * @param int $user_id User ID of the site administrator. * @param string $password User password, or "N/A" if the user account is not new. * @param string $title Site title. * @param array $meta Signup meta data. By default, contains the requested privacy setting and lang_id. */ if ( ! apply_filters( 'wpmu_welcome_notification', $blog_id, $user_id, $password, $title, $meta ) ) { return false; } $user = get_userdata( $user_id ); $switched_locale = switch_to_user_locale( $user_id ); $welcome_email = get_site_option( 'welcome_email' ); if ( false == $welcome_email ) { /* 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 ); $welcome_email = str_replace( 'SITE_NAME', $current_network->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 ); /** * Filters the content of the welcome email sent to the site administrator after site activation. * * Content should be formatted for transmission via wp_mail(). * * @since MU (3.0.0) * * @param string $welcome_email Message body of the email. * @param int $blog_id Site ID. * @param int $user_id User ID of the site administrator. * @param string $password User password, or "N/A" if the user account is not new. * @param string $title Site title. * @param array $meta Signup meta data. By default, contains the requested privacy setting and lang_id. */ $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@' . wp_parse_url( network_home_url(), PHP_URL_HOST ); } $from_name = ( '' !== get_site_option( 'site_name' ) ) ? esc_html( get_site_option( 'site_name' ) ) : 'WordPress'; $message_headers = "From: \"{$from_name}\" <{$admin_email}>\n" . 'Content-Type: text/plain; charset="' . get_option( 'blog_charset' ) . "\"\n"; $message = $welcome_email; if ( empty( $current_network->site_name ) ) { $current_network->site_name = 'WordPress'; } /* translators: New site notification email subject. 1: Network title, 2: New site title. */ $subject = __( 'New %1$s Site: %2$s' ); /** * Filters the subject of the welcome email sent to the site administrator after site activation. * * @since MU (3.0.0) * * @param string $subject Subject of the email. */ $subject = apply_filters( 'update_welcome_subject', sprintf( $subject, $current_network->site_name, wp_unslash( $title ) ) ); wp_mail( $user->user_email, wp_specialchars_decode( $subject ), $message, $message_headers ); if ( $switched_locale ) { restore_previous_locale(); } return true; } /** * Notifies the Multisite network administrator that a new site was created. * * Filter {@see 'send_new_site_email'} to disable or bypass. * * Filter {@see 'new_site_email'} to filter the contents. * * @since 5.6.0 * * @param int $site_id Site ID of the new site. * @param int $user_id User ID of the administrator of the new site. * @return bool Whether the email notification was sent. */ function wpmu_new_site_admin_notification( $site_id, $user_id ) { $site = get_site( $site_id ); $user = get_userdata( $user_id ); $email = get_site_option( 'admin_email' ); if ( ! $site || ! $user || ! $email ) { return false; } /** * Filters whether to send an email to the Multisite network administrator when a new site is created. * * Return false to disable sending the email. * * @since 5.6.0 * * @param bool $send Whether to send the email. * @param WP_Site $site Site object of the new site. * @param WP_User $user User object of the administrator of the new site. */ if ( ! apply_filters( 'send_new_site_email', true, $site, $user ) ) { return false; } $switched_locale = false; $network_admin = get_user_by( 'email', $email ); if ( $network_admin ) { // If the network admin email address corresponds to a user, switch to their locale. $switched_locale = switch_to_user_locale( $network_admin->ID ); } else { // Otherwise switch to the locale of the current site. $switched_locale = switch_to_locale( get_locale() ); } $subject = sprintf( /* translators: New site notification email subject. %s: Network title. */ __( '[%s] New Site Created' ), get_network()->site_name ); $message = sprintf( /* translators: New site notification email. 1: User login, 2: Site URL, 3: Site title. */ __( 'New site created by %1$s Address: %2$s Name: %3$s' ), $user->user_login, get_site_url( $site->id ), get_blog_option( $site->id, 'blogname' ) ); $header = sprintf( 'From: "%1$s" <%2$s>', _x( 'Site Admin', 'email "From" field' ), $email ); $new_site_email = array( 'to' => $email, 'subject' => $subject, 'message' => $message, 'headers' => $header, ); /** * Filters the content of the email sent to the Multisite network administrator when a new site is created. * * Content should be formatted for transmission via wp_mail(). * * @since 5.6.0 * * @param array $new_site_email { * Used to build wp_mail(). * * @type string $to The email address of the recipient. * @type string $subject The subject of the email. * @type string $message The content of the email. * @type string $headers Headers. * } * @param WP_Site $site Site object of the new site. * @param WP_User $user User object of the administrator of the new site. */ $new_site_email = apply_filters( 'new_site_email', $new_site_email, $site, $user ); wp_mail( $new_site_email['to'], wp_specialchars_decode( $new_site_email['subject'] ), $new_site_email['message'], $new_site_email['headers'] ); if ( $switched_locale ) { restore_previous_locale(); } return true; } /** * Notifies a user that their account activation has been successful. * * Filter {@see 'wpmu_welcome_user_notification'} to disable or bypass. * * Filter {@see 'update_welcome_user_email'} and {@see 'update_welcome_user_subject'} to * modify the content and subject line of the notification email. * * @since MU (3.0.0) * * @param int $user_id User ID. * @param string $password User password. * @param array $meta Optional. Signup meta data. Default empty array. * @return bool */ function wpmu_welcome_user_notification( $user_id, $password, $meta = array() ) { $current_network = get_network(); /** * Filters whether to bypass the welcome email after user activation. * * Returning false disables the welcome email. * * @since MU (3.0.0) * * @param int $user_id User ID. * @param string $password User password. * @param array $meta Signup meta data. Default empty array. */ 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 ); $switched_locale = switch_to_user_locale( $user_id ); /** * Filters the content of the welcome email after user activation. * * Content should be formatted for transmission via wp_mail(). * * @since MU (3.0.0) * * @param string $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. Default empty array. */ $welcome_email = apply_filters( 'update_welcome_user_email', $welcome_email, $user_id, $password, $meta ); $welcome_email = str_replace( 'SITE_NAME', $current_network->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@' . wp_parse_url( network_home_url(), PHP_URL_HOST ); } $from_name = ( '' !== get_site_option( 'site_name' ) ) ? esc_html( get_site_option( 'site_name' ) ) : 'WordPress'; $message_headers = "From: \"{$from_name}\" <{$admin_email}>\n" . 'Content-Type: text/plain; charset="' . get_option( 'blog_charset' ) . "\"\n"; $message = $welcome_email; if ( empty( $current_network->site_name ) ) { $current_network->site_name = 'WordPress'; } /* translators: New user notification email subject. 1: Network title, 2: New user login. */ $subject = __( 'New %1$s User: %2$s' ); /** * Filters the subject of the welcome email after user activation. * * @since MU (3.0.0) * * @param string $subject Subject of the email. */ $subject = apply_filters( 'update_welcome_user_subject', sprintf( $subject, $current_network->site_name, $user->user_login ) ); wp_mail( $user->user_email, wp_specialchars_decode( $subject ), $message, $message_headers ); if ( $switched_locale ) { restore_previous_locale(); } return true; } /** * Gets the current network. * * Returns an object containing the 'id', 'domain', 'path', and 'site_name' * properties of the network being viewed. * * @see wpmu_current_site() * * @since MU (3.0.0) * * @global WP_Network $current_site The current network. * * @return WP_Network The current network. */ function get_current_site() { global $current_site; return $current_site; } /** * Gets 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 (3.0.0) * * @global wpdb $wpdb WordPress database abstraction object. * * @param int $user_id 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. // /** * Checks an array of MIME types against a list of allowed types. * * 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 filetypes allowed provided by Multisite * Super Admins at wp-admin/network/settings.php. * * @since MU (3.0.0) * * @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 && str_contains( $ext_pattern, $ext ) ) { $site_mimes[ $ext_pattern ] = $mime; } } } return $site_mimes; } /** * Updates 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_site(). This function is called when posts are published * or unpublished to make sure the count stays current. * * @since MU (3.0.0) * * @global wpdb $wpdb WordPress database abstraction object. * * @param string $deprecated Not used. */ 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'" ), true ); } /** * Logs the user email, IP, and registration date of a new site. * * @since MU (3.0.0) * @since 5.1.0 Parameters now support input from the {@see 'wp_initialize_site'} action. * * @global wpdb $wpdb WordPress database abstraction object. * * @param WP_Site|int $blog_id The new site's object or ID. * @param int|array $user_id User ID, or array of arguments including 'user_id'. */ function wpmu_log_new_registrations( $blog_id, $user_id ) { global $wpdb; if ( is_object( $blog_id ) ) { $blog_id = $blog_id->blog_id; } if ( is_array( $user_id ) ) { $user_id = ! empty( $user_id['user_id'] ) ? $user_id['user_id'] : 0; } $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' ), ) ); } } /** * Ensures that the current site's domain is listed in the allowed redirect host list. * * @see wp_validate_redirect() * @since MU (3.0.0) * * @param array|string $deprecated Not used. * @return string[] { * An array containing the current site's domain. * * @type string $0 The current site's domain. * } */ function redirect_this_site( $deprecated = '' ) { return array( get_network()->domain ); } /** * Checks whether an upload is too big. * * @since MU (3.0.0) * * @param array $upload An array of information about the newly-uploaded file. * @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 ) ) ) { /* translators: %s: Maximum allowed file size in kilobytes. */ return sprintf( __( 'This file is too big. Files must be less than %s KB in size.' ) . '<br />', get_site_option( 'fileupload_maxk', 1500 ) ); } return $upload; } /** * Adds a nonce field to the signup page. * * @since MU (3.0.0) */ 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 ); } /** * Processes the signup nonce created in signup_nonce_fields(). * * @since MU (3.0.0) * * @param array $result * @return array */ function signup_nonce_check( $result ) { if ( ! strpos( $_SERVER['PHP_SELF'], 'wp-signup.php' ) ) { return $result; } if ( ! wp_verify_nonce( $_POST['_signup_form'], 'signup_form_' . $_POST['signup_form_id'] ) ) { $result['errors']->add( 'invalid_nonce', __( 'Unable to submit this form, please try again.' ) ); } return $result; } /** * Corrects 404 redirects when NOBLOGREDIRECT is defined. * * @since MU (3.0.0) */ function maybe_redirect_404() { if ( is_main_site() && is_404() && defined( 'NOBLOGREDIRECT' ) ) { /** * Filters 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. */ $destination = apply_filters( 'blog_redirect_404', NOBLOGREDIRECT ); if ( $destination ) { if ( '%siteurl%' === $destination ) { $destination = network_home_url(); } wp_redirect( $destination ); exit; } } } /** * Adds a new user to a blog by visiting /newbloguser/{key}/. * * This will only work when the user's details are saved as an option * keyed as 'new_user_{key}', where '{key}' is a hash generated for the user to be * added, as when a user is invited through the regular WP Add User interface. * * @since MU (3.0.0) */ function maybe_add_existing_user_to_blog() { if ( ! str_contains( $_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( $details ) ) ) { wp_die( sprintf( /* translators: %s: Home URL. */ __( 'An error occurred adding you to this site. Go to the <a href="%s">homepage</a>.' ), home_url() ) ); } wp_die( sprintf( /* translators: 1: Home URL, 2: Admin URL. */ __( 'You have been added to this site. Please visit the <a href="%1$s">homepage</a> or <a href="%2$s">log in</a> using your username and password.' ), home_url(), admin_url() ), __( 'WordPress › Success' ), array( 'response' => 200 ) ); } /** * Adds a user to a blog based on details from maybe_add_existing_user_to_blog(). * * @since MU (3.0.0) * * @param array|false $details { * User details. Must at least contain values for the keys listed below. * * @type int $user_id The ID of the user being added to the current blog. * @type string $role The role to be assigned to the user. * } * @return true|WP_Error|void True on success or a WP_Error object if the user doesn't exist * or could not be added. Void if $details array was not provided. */ function add_existing_user_to_blog( $details = false ) { if ( is_array( $details ) ) { $blog_id = get_current_blog_id(); $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 (3.0.0) * * @param int $user_id User ID. * @param true|WP_Error $result True on success or a WP_Error object if the user doesn't exist * or could not be added. */ do_action( 'added_existing_user', $details['user_id'], $result ); return $result; } } /** * Adds 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 {@see 'wpmu_activate_user'} action. * * @since MU (3.0.0) * * @see add_user_to_blog() * * @param int $user_id User ID. * @param string $password User password. Ignored. * @param array $meta Signup meta data. */ 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_network()->site_id ); // Remove user from main blog. $result = add_user_to_blog( $blog_id, $user_id, $role ); if ( ! is_wp_error( $result ) ) { update_user_meta( $user_id, 'primary_blog', $blog_id ); } } } /** * Corrects From host on outgoing mail to match the site domain. * * @since MU (3.0.0) * * @param PHPMailer $phpmailer The PHPMailer instance (passed by reference). */ function fix_phpmailer_messageid( $phpmailer ) { $phpmailer->Hostname = get_network()->domain; } /** * Determines whether a user is marked as a spammer, based on user login. * * @since MU (3.0.0) * * @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; } /** * Updates this blog's 'public' setting in the global blogs table. * * Public blogs have a setting of 1, private blogs are 0. * * @since MU (3.0.0) * * @param int $old_value The old public 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 ); } /** * Determines whether users can self-register, based on Network settings. * * @since MU (3.0.0) * * @return bool */ function users_can_register_signup_filter() { $registration = get_site_option( 'registration' ); return ( 'all' === $registration || 'user' === $registration ); } /** * Ensures that the welcome message is not empty. Currently unused. * * @since MU (3.0.0) * * @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; } /** * Determines whether to force SSL on content. * * @since 2.8.5 * * @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 URL. * @return string URL with https as the scheme. */ function filter_SSL( $url ) { // phpcs:ignore WordPress.NamingConventions.ValidFunctionName.FunctionNameInvalid if ( ! is_string( $url ) ) { return get_bloginfo( 'url' ); // Return home site URL with proper scheme. } if ( force_ssl_content() && is_ssl() ) { $url = set_url_scheme( $url, 'https' ); } return $url; } /** * Schedules update of the network-wide counts for the current network. * * @since 3.1.0 */ function wp_schedule_update_network_counts() { if ( ! is_main_site() ) { return; } if ( ! wp_next_scheduled( 'update_network_counts' ) && ! wp_installing() ) { wp_schedule_event( time(), 'twicedaily', 'update_network_counts' ); } } /** * Updates the network-wide counts for the current network. * * @since 3.1.0 * @since 4.8.0 The `$network_id` parameter has been added. * * @param int|null $network_id ID of the network. Default is the current network. */ function wp_update_network_counts( $network_id = null ) { wp_update_network_user_counts( $network_id ); wp_update_network_site_counts( $network_id ); } /** * Updates the count of sites for the current network. * * If enabled through the {@see 'enable_live_network_counts'} filter, update the sites count * on a network when a site is created or its status is updated. * * @since 3.7.0 * @since 4.8.0 The `$network_id` parameter has been added. * * @param int|null $network_id ID of the network. Default is the current network. */ function wp_maybe_update_network_site_counts( $network_id = null ) { $is_small_network = ! wp_is_large_network( 'sites', $network_id ); /** * Filters 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( $network_id ); } /** * Updates the network-wide users count. * * If enabled through the {@see 'enable_live_network_counts'} filter, update the users count * on a network when a user is created or its status is updated. * * @since 3.7.0 * @since 4.8.0 The `$network_id` parameter has been added. * * @param int|null $network_id ID of the network. Default is the current network. */ function wp_maybe_update_network_user_counts( $network_id = null ) { $is_small_network = ! wp_is_large_network( 'users', $network_id ); /** 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( $network_id ); } /** * Updates the network-wide site count. * * @since 3.7.0 * @since 4.8.0 The `$network_id` parameter has been added. * * @param int|null $network_id ID of the network. Default is the current network. */ function wp_update_network_site_counts( $network_id = null ) { $network_id = (int) $network_id; if ( ! $network_id ) { $network_id = get_current_network_id(); } $count = get_sites( array( 'network_id' => $network_id, 'spam' => 0, 'deleted' => 0, 'archived' => 0, 'count' => true, 'update_site_meta_cache' => false, ) ); update_network_option( $network_id, 'blog_count', $count ); } /** * Updates the network-wide user count. * * @since 3.7.0 * @since 4.8.0 The `$network_id` parameter has been added. * @since 6.0.0 This function is now a wrapper for wp_update_user_counts(). * * @param int|null $network_id ID of the network. Default is the current network. */ function wp_update_network_user_counts( $network_id = null ) { wp_update_user_counts( $network_id ); } /** * Returns the space used by the current site. * * @since 3.5.0 * * @return int Used space in megabytes. */ function get_space_used() { /** * Filters the amount of storage space used by the current site, in megabytes. * * @since 3.5.0 * * @param int|false $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 (3.0.0) * * @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; } /** * Filters 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(); } /** * Filters the maximum upload file size allowed, in bytes. * * @since 3.0.0 * * @param int $size Upload size limit in bytes. * @return int Upload size limit in bytes. */ function upload_size_limit_filter( $size ) { $fileupload_maxk = (int) get_site_option( 'fileupload_maxk', 1500 ); $max_fileupload_in_bytes = KB_IN_BYTES * $fileupload_maxk; if ( get_site_option( 'upload_space_check_disabled' ) ) { return min( $size, $max_fileupload_in_bytes ); } return min( $size, $max_fileupload_in_bytes, get_upload_space_available() ); } /** * Determines whether or not we have a large network. * * The default criteria for a large network is either more than 10,000 users or more than 10,000 sites. * Plugins can alter this criteria using the {@see 'wp_is_large_network'} filter. * * @since 3.3.0 * @since 4.8.0 The `$network_id` parameter has been added. * * @param string $using 'sites' or 'users'. Default is 'sites'. * @param int|null $network_id ID of the network. Default is the current network. * @return bool True if the network meets the criteria for large. False otherwise. */ function wp_is_large_network( $using = 'sites', $network_id = null ) { $network_id = (int) $network_id; if ( ! $network_id ) { $network_id = get_current_network_id(); } if ( 'users' === $using ) { $count = get_user_count( $network_id ); $is_large_network = wp_is_large_user_count( $network_id ); /** * Filters whether the network is considered large. * * @since 3.3.0 * @since 4.8.0 The `$network_id` parameter has been added. * * @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. * @param int $network_id The ID of the network being checked. */ return apply_filters( 'wp_is_large_network', $is_large_network, 'users', $count, $network_id ); } $count = get_blog_count( $network_id ); /** This filter is documented in wp-includes/ms-functions.php */ return apply_filters( 'wp_is_large_network', $count > 10000, 'sites', $count, $network_id ); } /** * Retrieves a list of reserved site on a sub-directory Multisite installation. * * @since 4.4.0 * * @return string[] Array of reserved names. */ function get_subdirectory_reserved_names() { $names = array( 'page', 'comments', 'blog', 'files', 'feed', 'wp-admin', 'wp-content', 'wp-includes', 'wp-json', 'embed', ); /** * Filters reserved site names on a sub-directory Multisite installation. * * @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 string[] $subdirectory_reserved_names Array of reserved names. */ return apply_filters( 'subdirectory_reserved_names', $names ); } /** * Sends a confirmation request email when a change of network admin email address is attempted. * * The new network admin address will not become active until confirmed. * * @since 4.9.0 * * @param string $old_value The old network admin email address. * @param string $value The proposed new network admin email address. */ function update_network_option_new_admin_email( $old_value, $value ) { if ( get_site_option( 'admin_email' ) === $value || ! is_email( $value ) ) { return; } $hash = md5( $value . time() . mt_rand() ); $new_admin_email = array( 'hash' => $hash, 'newemail' => $value, ); update_site_option( 'network_admin_hash', $new_admin_email ); $switched_locale = switch_to_user_locale( get_current_user_id() ); /* translators: Do not translate USERNAME, ADMIN_URL, EMAIL, SITENAME, SITEURL: those are placeholders. */ $email_text = __( 'Howdy ###USERNAME###, You recently requested to have the network admin email address on your network changed. If this is correct, please click on the following link to change it: ###ADMIN_URL### You can safely ignore and delete this email if you do not want to take this action. This email has been sent to ###EMAIL### Regards, All at ###SITENAME### ###SITEURL###' ); /** * Filters the text of the email sent when a change of network admin email address is attempted. * * The following strings have a special meaning and will get replaced dynamically: * ###USERNAME### The current user's username. * ###ADMIN_URL### The link to click on to confirm the email change. * ###EMAIL### The proposed new network admin email address. * ###SITENAME### The name of the network. * ###SITEURL### The URL to the network. * * @since 4.9.0 * * @param string $email_text Text in the email. * @param array $new_admin_email { * Data relating to the new network admin email address. * * @type string $hash The secure hash used in the confirmation link URL. * @type string $newemail The proposed new network admin email address. * } */ $content = apply_filters( 'new_network_admin_email_content', $email_text, $new_admin_email ); $current_user = wp_get_current_user(); $content = str_replace( '###USERNAME###', $current_user->user_login, $content ); $content = str_replace( '###ADMIN_URL###', esc_url( network_admin_url( 'settings.php?network_admin_hash=' . $hash ) ), $content ); $content = str_replace( '###EMAIL###', $value, $content ); $content = str_replace( '###SITENAME###', wp_specialchars_decode( get_site_option( 'site_name' ), ENT_QUOTES ), $content ); $content = str_replace( '###SITEURL###', network_home_url(), $content ); wp_mail( $value, sprintf( /* translators: Email change notification email subject. %s: Network title. */ __( '[%s] Network Admin Email Change Request' ), wp_specialchars_decode( get_site_option( 'site_name' ), ENT_QUOTES ) ), $content ); if ( $switched_locale ) { restore_previous_locale(); } } /** * Sends an email to the old network admin email address when the network admin email address changes. * * @since 4.9.0 * * @param string $option_name The relevant database option name. * @param string $new_email The new network admin email address. * @param string $old_email The old network admin email address. * @param int $network_id ID of the network. */ function wp_network_admin_email_change_notification( $option_name, $new_email, $old_email, $network_id ) { $send = true; // Don't send the notification to the default 'admin_email' value. if ( 'you@example.com' === $old_email ) { $send = false; } /** * Filters whether to send the network admin email change notification email. * * @since 4.9.0 * * @param bool $send Whether to send the email notification. * @param string $old_email The old network admin email address. * @param string $new_email The new network admin email address. * @param int $network_id ID of the network. */ $send = apply_filters( 'send_network_admin_email_change_email', $send, $old_email, $new_email, $network_id ); if ( ! $send ) { return; } /* translators: Do not translate OLD_EMAIL, NEW_EMAIL, SITENAME, SITEURL: those are placeholders. */ $email_change_text = __( 'Hi, This notice confirms that the network admin email address was changed on ###SITENAME###. The new network admin email address is ###NEW_EMAIL###. This email has been sent to ###OLD_EMAIL### Regards, All at ###SITENAME### ###SITEURL###' ); $email_change_email = array( 'to' => $old_email, /* translators: Network admin email change notification email subject. %s: Network title. */ 'subject' => __( '[%s] Network Admin Email Changed' ), 'message' => $email_change_text, 'headers' => '', ); // Get network name. $network_name = wp_specialchars_decode( get_site_option( 'site_name' ), ENT_QUOTES ); /** * Filters the contents of the email notification sent when the network admin email address is changed. * * @since 4.9.0 * * @param array $email_change_email { * Used to build wp_mail(). * * @type string $to The intended recipient. * @type string $subject The subject of the email. * @type string $message The content of the email. * The following strings have a special meaning and will get replaced dynamically: * - ###OLD_EMAIL### The old network admin email address. * - ###NEW_EMAIL### The new network admin email address. * - ###SITENAME### The name of the network. * - ###SITEURL### The URL to the site. * @type string $headers Headers. * } * @param string $old_email The old network admin email address. * @param string $new_email The new network admin email address. * @param int $network_id ID of the network. */ $email_change_email = apply_filters( 'network_admin_email_change_email', $email_change_email, $old_email, $new_email, $network_id ); $email_change_email['message'] = str_replace( '###OLD_EMAIL###', $old_email, $email_change_email['message'] ); $email_change_email['message'] = str_replace( '###NEW_EMAIL###', $new_email, $email_change_email['message'] ); $email_change_email['message'] = str_replace( '###SITENAME###', $network_name, $email_change_email['message'] ); $email_change_email['message'] = str_replace( '###SITEURL###', home_url(), $email_change_email['message'] ); wp_mail( $email_change_email['to'], sprintf( $email_change_email['subject'], $network_name ), $email_change_email['message'], $email_change_email['headers'] ); }
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