/public/frontend/wp-includes/ms-functions.php
PHP | 1982 lines | 972 code | 269 blank | 741 comment | 279 complexity | dcbb9a44903b2113aa953d299985daec MD5 | raw file
Possible License(s): GPL-2.0, AGPL-1.0, LGPL-2.1
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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
- * @uses get_blog_count()
- * @uses get_user_count()
- *
- * @return array Site and user count for the network.
- */
- function get_sitestats() {
- global $wpdb;
- $stats = array(
- 'blogs' => get_blog_count(),
- 'users' => get_user_count(),
- );
- return $stats;
- }
- /**
- * Get the admin for a domain/path combination.
- *
- * @since MU 1.0
- *
- * @param string $sitedomain Optional. Site domain.
- * @param string $path Optional. Site path.
- * @return array The network admins
- */
- function get_admin_users_for_domain( $sitedomain = '', $path = '' ) {
- global $wpdb;
- if ( ! $sitedomain )
- $site_id = $wpdb->siteid;
- else
- $site_id = $wpdb->get_var( $wpdb->prepare( "SELECT id FROM $wpdb->site WHERE domain = %s AND path = %s", $sitedomain, $path ) );
- if ( $site_id )
- return $wpdb->get_results( $wpdb->prepare( "SELECT u.ID, u.user_login, u.user_pass FROM $wpdb->users AS u, $wpdb->sitemeta AS sm WHERE sm.meta_key = 'admin_user_id' AND u.ID = sm.meta_value AND sm.site_id = %d", $site_id ), ARRAY_A );
- return false;
- }
- /**
- * Get one of a user's active blogs
- *
- * Returns the user's primary blog, if she has 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
- * @uses get_blogs_of_user()
- * @uses add_user_to_blog()
- * @uses get_blog_details()
- *
- * @param int $user_id The unique ID of the user
- * @return object The blog object
- */
- function get_active_blog_for_user( $user_id ) {
- global $wpdb;
- $blogs = get_blogs_of_user( $user_id );
- if ( empty( $blogs ) )
- return null;
- 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 null;
- }
- 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 $id Optional. A site_id.
- * @return int
- */
- function get_blog_count( $id = 0 ) {
- 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 object The post.
- */
- function get_blog_post( $blog_id, $post_id ) {
- global $wpdb;
- $key = $blog_id . '-' . $post_id;
- $post = wp_cache_get( $key, 'global-posts' );
- if ( $post == false ) {
- $post = $wpdb->get_row( $wpdb->prepare( 'SELECT * FROM ' . $wpdb->get_blog_prefix( $blog_id ) . 'posts WHERE ID = %d', $post_id ) );
- wp_cache_add( $key, $post, 'global-posts' );
- }
- 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 bool
- */
- function add_user_to_blog( $blog_id, $user_id, $role ) {
- switch_to_blog($blog_id);
- $user = new WP_User($user_id);
- if ( ! $user->exists() ) {
- restore_current_blog();
- return new WP_Error('user_does_not_exist', __('That user does not exist.'));
- }
- if ( !get_user_meta($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);
- do_action('add_user_to_blog', $user_id, $role, $blog_id);
- wp_cache_delete( $user_id, 'users' );
- 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
- *
- * @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 $reassign Optional. A user to whom to reassign posts.
- * @return bool
- */
- function remove_user_from_blog($user_id, $blog_id = '', $reassign = '') {
- global $wpdb;
- switch_to_blog($blog_id);
- $user_id = (int) $user_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);
- $user = new WP_User($user_id);
- if ( ! $user->exists() ) {
- 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;
- $wpdb->query( $wpdb->prepare("UPDATE $wpdb->posts SET post_author = %d WHERE post_author = %d", $reassign, $user_id) );
- $wpdb->query( $wpdb->prepare("UPDATE $wpdb->links SET link_owner = %d WHERE link_owner = %d", $reassign, $user_id) );
- }
- restore_current_blog();
- return true;
- }
- /**
- * Create an empty blog.
- *
- * @since MU 1.0
- * @uses install_blog()
- *
- * @param string $domain The new blog's domain.
- * @param string $path The new blog's path.
- * @param string $weblog_title The new blog's title.
- * @param int $site_id Optional. Defaults to 1.
- * @return int The ID of the newly created blog
- */
- function create_empty_blog( $domain, $path, $weblog_title, $site_id = 1 ) {
- $domain = addslashes( $domain );
- $weblog_title = addslashes( $weblog_title );
- if ( empty($path) )
- $path = '/';
- // Check if the domain has been used already. We should return an error message.
- if ( domain_exists($domain, $path, $site_id) )
- return __( '<strong>ERROR</strong>: Site URL already taken.' );
- // Need to back up wpdb table names, and create a new wp_blogs entry for new blog.
- // Need to get blog_id from wp_blogs, and create new table names.
- // Must restore table names at the end of function.
- if ( ! $blog_id = insert_blog($domain, $path, $site_id) )
- return __( '<strong>ERROR</strong>: problem creating site entry.' );
- switch_to_blog($blog_id);
- install_blog($blog_id);
- restore_current_blog();
- return $blog_id;
- }
- /**
- * 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 ) {
- $key = "{$_blog_id}-{$post_id}-blog_permalink";
- $link = wp_cache_get( $key, 'site-options' );
- if ( $link == false ) {
- switch_to_blog( $_blog_id );
- $link = get_permalink( $post_id );
- restore_current_blog();
- wp_cache_add( $key, $link, 'site-options', 360 );
- }
- 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
- *
- * @param string $domain
- * @param string $path Optional. Not required for subdomain installations.
- * @return int
- */
- function get_blog_id_from_url( $domain, $path = '/' ) {
- global $wpdb;
- $domain = strtolower( $wpdb->escape( $domain ) );
- $path = strtolower( $wpdb->escape( $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( "SELECT blog_id FROM $wpdb->blogs WHERE domain = '$domain' and path = '$path' /* get_blog_id_from_url */" );
- if ( !$id ) {
- wp_cache_set( md5( $domain . $path ), -1, 'blog-id-cache' );
- return false;
- }
- 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);
- if ( is_array( $banned_names ) && empty( $banned_names ) == false ) {
- $email_domain = strtolower( substr( $user_email, 1 + strpos( $user_email, '@' ) ) );
- foreach ( (array) $banned_names as $banned_domain ) {
- if ( $banned_domain == '' )
- continue;
- if (
- strstr( $email_domain, $banned_domain ) ||
- (
- strstr( $banned_domain, '/' ) &&
- preg_match( $banned_domain, $email_domain )
- )
- )
- return true;
- }
- }
- return false;
- }
- /**
- * Processes new user registrations.
- *
- * Checks the data provided by the user during signup. Verifies
- * the validity and uniqueness of user names and user email addresses,
- * and checks email addresses against admin-provided domain
- * whitelists and blacklists.
- *
- * The hook 'wpmu_validate_user_signup' provides an easy way
- * to modify the signup process. The value $result, which is passed
- * to the hook, contains both the user-provided info and the error
- * messages created by the function. '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
- * @uses is_email_address_unsafe()
- * @uses username_exists()
- * @uses email_exists()
- *
- * @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', __( 'Only lowercase letters (a-z) and numbers are allowed.' ) );
- $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 ) == false ) {
- $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', __( '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 ( strpos( ' ' . $user_name, '_' ) != false )
- $errors->add( 'user_name', __( 'Sorry, usernames may not contain the character “_”!' ) );
- // all numeric?
- $match = array();
- preg_match( '/[0-9]*/', $user_name, $match );
- if ( $match[0] == $user_name )
- $errors->add('user_name', __('Sorry, usernames must have letters too!'));
- if ( !is_email( $user_email ) )
- $errors->add('user_email', __( 'Please enter a correct email address.' ) );
- $limited_email_domains = get_site_option( 'limited_email_domains' );
- if ( is_array( $limited_email_domains ) && empty( $limited_email_domains ) == false ) {
- $emaildomain = substr( $user_email, 1 + strpos( $user_email, '@' ) );
- if ( in_array( $emaildomain, $limited_email_domains ) == false )
- $errors->add('user_email', __('Sorry, that email address is not allowed!'));
- }
- // Check if the username has been used already.
- if ( username_exists($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 > 172800 )
- $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.'));
- if ( $signup->active == 0 && $signup->user_email == $user_email )
- $errors->add('user_email_used', __('username and email used'));
- }
- $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 > 172800 )
- $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);
- 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
- * @uses domain_exists()
- * @uses username_exists()
- *
- * @param string $blogname The blog name provided by the user. Must be unique.
- * @param string $blog_title The blog title provided by the user.
- * @return array Contains the new site data and error messages.
- */
- function wpmu_validate_blog_signup($blogname, $blog_title, $user = '') {
- global $wpdb, $domain, $base, $current_site;
- $blog_title = strip_tags( $blog_title );
- $blog_title = substr( $blog_title, 0, 50 );
- $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, apply_filters( 'subdirectory_reserved_names', array( 'page', 'comments', 'blog', 'files', 'feed' ) ) );
- if ( empty( $blogname ) )
- $errors->add('blogname', __( 'Please enter a site name.' ) );
- if ( preg_match( '/[^a-z0-9]+/', $blogname ) )
- $errors->add('blogname', __( 'Only lowercase letters and numbers allowed.' ) );
- if ( in_array( $blogname, $illegal_names ) == true )
- $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.' ) );
- if ( strpos( ' ' . $blogname, '_' ) != false )
- $errors->add( 'blogname', __( 'Sorry, site names may not contain the character “_”!' ) );
- // 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?
- $match = array();
- preg_match( '/[0-9]*/', $blogname, $match );
- if ( $match[0] == $blogname )
- $errors->add('blogname', __('Sorry, site names must have letters too!'));
- $blogname = apply_filters( 'newblogname', $blogname );
- $blog_title = stripslashes( $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) )
- $errors->add('blogname', __('Sorry, that site already exists!'));
- if ( username_exists( $blogname ) ) {
- if ( is_object( $user ) == false || ( is_object($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 > 172800 )
- $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, 'errors' => $errors);
- return apply_filters('wpmu_validate_blog_signup', $result);
- }
- /**
- * Record site signup information for future activation.
- *
- * @since MU
- * @uses wpmu_signup_blog_notification()
- *
- * @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 = '') {
- global $wpdb;
- $key = substr( md5( time() . rand() . $domain ), 0, 16 );
- $meta = serialize($meta);
- $domain = $wpdb->escape($domain);
- $path = $wpdb->escape($path);
- $title = $wpdb->escape($title);
- $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' => $meta
- ) );
- wpmu_signup_blog_notification($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
- * @uses wpmu_signup_user_notification()
- *
- * @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 = '') {
- 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' => $meta
- ) );
- wpmu_signup_user_notification($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 array $meta By default, contains the requested privacy setting and lang_id.
- * @param string $key The activation key created in wpmu_signup_blog()
- * @return bool
- */
- function wpmu_signup_blog_notification($domain, $path, $title, $user, $user_email, $key, $meta = '') {
- global $current_site;
- 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() || $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(
- 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.
- $subject = sprintf(
- apply_filters( 'wpmu_signup_blog_notification_subject',
- __( '[%1$s] Activate %2$s' ),
- $domain, $path, $title, $user, $user_email, $key, $meta
- ),
- $from_name,
- esc_url( 'http://' . $domain . $path )
- );
- wp_mail($user_email, $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 array $meta By default, an empty array.
- * @param string $key The activation key created in wpmu_signup_user()
- * @return bool
- */
- function wpmu_signup_user_notification($user, $user_email, $key, $meta = '') {
- 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(
- 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.\n\n" ),
- $user, $user_email, $key, $meta
- ),
- site_url( "wp-activate.php?key=$key" )
- );
- // TODO: Don't hard code activation link.
- $subject = sprintf(
- apply_filters( 'wpmu_signup_user_notification_subject',
- __( '[%1$s] Activate %2$s' ),
- $user, $user_email, $key, $meta
- ),
- $from_name,
- $user
- );
- wp_mail($user_email, $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
- * @uses wp_generate_password()
- * @uses wpmu_welcome_user_notification()
- * @uses add_user_to_blog()
- * @uses add_new_user_to_blog()
- * @uses wpmu_create_user()
- * @uses wpmu_create_blog()
- * @uses wpmu_welcome_notification()
- *
- * @param string $key The activation key provided to the user.
- * @return array An array containing information about the activated user and/or blog
- */
- function wpmu_activate_signup($key) {
- global $wpdb, $current_site;
- $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);
- $user_login = $wpdb->escape($signup->user_login);
- $user_email = $wpdb->escape($signup->user_email);
- $password = wp_generate_password( 12, false );
- $user_id = username_exists($user_login);
- if ( ! $user_id )
- $user_id = wpmu_create_user($user_login, $password, $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.' ), $signup);
- wpmu_welcome_user_notification($user_id, $password, $meta);
- add_new_user_to_blog( $user_id, $user_email, $meta );
- 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' => $key) );
- wpmu_welcome_notification($blog_id, $user_id, $password, $signup->title, $meta);
- 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
- * @uses wp_create_user()
- *
- * @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 mixed 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' );
- 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
- * @uses domain_exists()
- * @uses insert_blog()
- * @uses wp_install_defaults()
- * @uses add_user_to_blog()
- *
- * @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 mixed Returns WP_Error object on failure, int $blog_id on success
- */
- function wpmu_create_blog($domain, $path, $title, $user_id, $meta = '', $site_id = 1) {
- $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', __('Site already exists.'));
- if ( !defined('WP_INSTALLING') )
- define( '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, $user_id, 'administrator');
- if ( is_array($meta) ) foreach ($meta as $key => $value) {
- if ( $key == 'public' || $key == 'archived' || $key == 'mature' || $key == 'spam' || $key == 'deleted' || $key == '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();
- 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: %1s
- URL: %2s
- Remote IP: %3s
- Disable these notifications: %4s' ), $blogname, $siteurl, $_SERVER['REMOTE_ADDR'], $options_site_url);
- $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
- * @uses apply_filters() Filter newuser_notify_siteadmin to change the content of the email message
- *
- * @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;
- $user = new WP_User($user_id);
- $options_site_url = esc_url(network_admin_url('settings.php'));
- $msg = sprintf(__('New User: %1s
- Remote IP: %2s
- Disable these notifications: %3s'), $user->user_login, $_SERVER['REMOTE_ADDR'], $options_site_url);
- $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
- *
- * @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;
- return $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) );
- }
- /**
- * 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
- *
- * @param string $domain The domain of the new site.
- * @param string $path The path of the new site.
- * @param int $site_id Unless you're running a multi-network install, be sure to set this value to 1.
- * @return int The ID of the new row
- */
- function insert_blog($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 ( ! $result )
- return false;
- refresh_blog_details($wpdb->insert_id);
- return $wpdb->insert_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
- * @uses make_db_current_silent()
- * @uses populate_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, $table_prefix, $wp_roles;
- $wpdb->suppress_errors();
- // Cast for security
- $blog_id = (int) $blog_id;
- require_once( ABSPATH . 'wp-admin/includes/upgrade.php' );
- if ( $wpdb->get_results("SELECT ID FROM $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(false);
- $url = get_blogaddress_by_id($blog_id);
- // Set everything up
- make_db_current_silent( 'blog' );
- populate_options();
- populate_roles();
- $wp_roles->_init();
- // fix url.
- update_option('siteurl', $url);
- update_option('home', $url);
- update_option('fileupload_url', $url . "files" );
- update_option('upload_path', UPLOADBLOGSDIR . "/$blog_id/files");
- update_option('blogname', stripslashes( $blog_title ) );
- update_option('admin_email', '');
- $wpdb->update( $wpdb->options, array('option_value' => ''), array('option_name' => 'admin_email') );
- // remove all perms
- $wpdb->delete( $wpdb->usermeta, array( 'meta_key' => $table_prefix.'user_level' ) );
- $wpdb->delete( $wpdb->usermeta, array( 'meta_key' => $table_prefix.'capabilities' ) );
- $wpdb->suppress_errors( false );
- }
- /**
- * Set blog defaults.
- *
- * This function creates a row in the wp_blogs table.
- *
- * @since MU
- * @deprecated MU
- * @deprecated Use wp_install_defaults()
- * @uses wp_install_defaults()
- *
- * @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' );
- $wpdb->suppress_errors();
- wp_install_defaults($user_id);
- $wpdb->suppress_errors( false );
- }
- /**
- * Notify a user that her 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 = '') {
- global $current_site;
- if ( !apply_filters('wpmu_welcome_notification', $blog_id, $user_id, $password, $title, $meta) )
- return false;
- $welcome_email = stripslashes( get_site_option( 'welcome_email' ) );
- if ( $welcome_email == false )
- $welcome_email = stripslashes( __( 'Dear User,
- 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);
- $user = new WP_User($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 );
- $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';
- $subject = apply_filters( 'update_welcome_subject', sprintf(__('New %1$s Site: %2$s'), $current_site->site_name, stripslashes( $title ) ) );
- wp_mail($user->user_email, $subject, $message, $message_headers);
- return true;
- }
- /**
- * Notify a user that her 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 = '') {
- global $current_site;
- if ( !apply_filters('wpmu_welcome_user_notification', $user_id, $password, $meta) )
- return false;
- $welcome_email = get_site_option( 'welcome_user_email' );
- $user = new WP_User($user_id);
- $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';
- $subject = apply_filters( 'update_welcome_user_subject', sprintf(__('New %1$s User: %2$s'), $current_site->site_name, $user->user_login) );
- wp_mail($user->user_email, $subject, $message, $message_headers);
- return true;
- }
- /**
- * Get the current site info.
- *
- * Returns an object containing the ID, domain, path, and site_name
- * of the site being viewed.
- *
- * @since MU
- *
- * @return object
- */
- function get_current_site() {
- global $current_site;
- return $current_site;
- }
- /**
- * Get a numeric user ID from either an email address or a login.
- *
- * @since MU
- * @uses is_email()
- *
- * @param string $string
- * @return int
- */
- function get_user_id_from_string( $string ) {
- $user_id = 0;
- if ( is_email( $string ) ) {
- $user = get_user_by('email', $string);
- if ( $user )
- $user_id = $user->ID;
- } elseif ( is_numeric( $string ) ) {
- $user_id = $string;
- } else {
- $user = get_user_by('login', $string);
- if ( $user )
- $user_id = $user->ID;
- }
- return $user_id;
- }
- /**
- * 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
- * @uses get_blogs_of_user()
- *
- * @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
- * @uses recurse_dirsize()
- *
- * @param string $directory
- * @return int
- */
- function get_dirsize( $directory ) {
- $dirsize = get_transient( 'dirsize_cache' );
- if ( is_array( $dirsize ) && isset( $dirsize[ $directory ][ 'size' ] ) )
- return $dirsize[ $directory ][ 'size' ];
- if ( false == is_array( $dirsize ) )
- $dirsize = array();
- $dirsize[ $directory ][ 'size' ] = recurse_dirsize( $directory );
- set_transient( 'dirsize_cache', $dirsize, 3600 );
- 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
- *
- * @param string $directory
- * @return int
- */
- function recurse_dirsize( $directory ) {
- $size = 0;
- $directory = untrailingslashit( $directory );
- if ( !file_exists($directory) || !is_dir( $directory ) || !is_readable( $directory ) )
- return false;
- if ($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);
- if ($handlesize > 0)
- $size += $handlesize;
- }
- }
- }
- closedir($handle);
- }
- return $size;
- }
- /**
- * Check whether a blog has used its allotted upload space.
- *
- * @since MU
- * @uses get_dirsize()
- *
- * @param bool $echo Optional. If $echo is set and the quota is exceeded, a warning message is echoed. Default is true.
- * @return int
- */
- function upload_is_user_over_quota( $echo = true ) {
- if ( get_site_option( 'upload_space_check_disabled' ) )
- return false;
- $spaceAllowed = get_space_allowed();
- if ( empty( $spaceAllowed ) || !is_numeric( $spaceAllowed ) )
- $spaceAllowed = 10; // Default space allowed is 10 MB
- $size = get_dirsize( BLOGUPLOADDIR ) / 1024 / 1024;
- if ( ($spaceAllowed-$size) < 0 ) {
- if ( $echo )
- _e( 'Sorry, you have used your space allocation. Please delete some files to upload more files.' ); // No space left
- return true;
- } else {
- return false;
- }
- }
- /**
- * 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' ) );
- 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 to make sure the count stays current.
- *
- * @since MU
- */
- function update_pos…
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