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<?php /** * These functions are needed to load Multisite. * * @since 3.0.0 * * @package WordPress * @subpackage Multisite / /* * Whether a subdomain configuration is enabled. * * @since 3.0.0 * * @return bool True if subdomain configuration is enabled, false otherwise. / function is_subdomain_install() { if ( defined( 'SUBDOMAIN_INSTALL' ) ) { return SUBDOMAIN_INSTALL; } return ( defined( 'VHOST' ) && 'yes' === VHOST ); } /* * Returns array of network plugin files to be included in global scope. * * The default directory is wp-content/plugins. To change the default directory * manually, define `WP_PLUGIN_DIR` and `WP_PLUGIN_URL` in `wp-config.php`. * * @access private * @since 3.1.0 * * @return string[] Array of absolute paths to files to include. / function wp_get_active_network_plugins() { $active_plugins = (array) get_site_option( 'active_sitewide_plugins', array() ); if ( empty( $active_plugins ) ) { return array(); } $plugins = array(); $active_plugins = array_keys( $active_plugins ); sort( $active_plugins ); foreach ( $active_plugins as $plugin ) { if ( ! validate_file( $plugin ) // $plugin must validate as file. && str_ends_with( $plugin, '.php' ) // $plugin must end with '.php'. && file_exists( WP_PLUGIN_DIR . '/' . $plugin ) // $plugin must exist. ) { $plugins[] = WP_PLUGIN_DIR . '/' . $plugin; } } return $plugins; } /* * Checks status of current blog. * * Checks if the blog is deleted, inactive, archived, or spammed. * * Dies with a default message if the blog does not pass the check. * * To change the default message when a blog does not pass the check, * use the wp-content/blog-deleted.php, blog-inactive.php and * blog-suspended.php drop-ins. * * @since 3.0.0 * * @return true\|string Returns true on success, or drop-in file to include. / function ms_site_check() { /* * Filters checking the status of the current blog. * * @since 3.0.0 * * @param bool\|null $check Whether to skip the blog status check. Default null. / $check = apply_filters( 'ms_site_check', null ); if ( null !== $check ) { return true; } // Allow super admins to see blocked sites. if ( is_super_admin() ) { return true; } $blog = get_site(); if ( '1' === $blog->deleted ) { if ( file_exists( WP_CONTENT_DIR . '/blog-deleted.php' ) ) { return WP_CONTENT_DIR . '/blog-deleted.php'; } else { wp_die( __( 'This site is no longer available.' ), '', array( 'response' => 410 ) ); } } if ( '2' === $blog->deleted ) { if ( file_exists( WP_CONTENT_DIR . '/blog-inactive.php' ) ) { return WP_CONTENT_DIR . '/blog-inactive.php'; } else { $admin_email = str_replace( '@', ' AT ', get_site_option( 'admin_email', 'support@' . get_network()->domain ) ); wp_die( sprintf( / translators: %s: Admin email link. / __( 'This site has not been activated yet. If you are having problems activating your site, please contact %s.' ), sprintf( '<a href="mailto:%1$s">%1$s</a>', $admin_email ) ) ); } } if ( '1' === $blog->archived \|\| '1' === $blog->spam ) { if ( file_exists( WP_CONTENT_DIR . '/blog-suspended.php' ) ) { return WP_CONTENT_DIR . '/blog-suspended.php'; } else { wp_die( __( 'This site has been archived or suspended.' ), '', array( 'response' => 410 ) ); } } return true; } /* * Retrieves the closest matching network for a domain and path. * * @since 3.9.0 * * @internal In 4.4.0, converted to a wrapper for WP_Network::get_by_path() * * @param string $domain Domain to check. * @param string $path Path to check. * @param int\|null $segments Path segments to use. Defaults to null, or the full path. * @return WP_Network\|false Network object if successful. False when no network is found. / function get_network_by_path( $domain, $path, $segments = null ) { return WP_Network::get_by_path( $domain, $path, $segments ); } /* * Retrieves the closest matching site object by its domain and path. * * This will not necessarily return an exact match for a domain and path. Instead, it * breaks the domain and path into pieces that are then used to match the closest * possibility from a query. * * The intent of this method is to match a site object during bootstrap for a * requested site address * * @since 3.9.0 * @since 4.7.0 Updated to always return a `WP_Site` object. * * @param string $domain Domain to check. * @param string $path Path to check. * @param int\|null $segments Path segments to use. Defaults to null, or the full path. * @return WP_Site\|false Site object if successful. False when no site is found. / function get_site_by_path( $domain, $path, $segments = null ) { $path_segments = array_filter( explode( '/', trim( $path, '/' ) ) ); /* * Filters the number of path segments to consider when searching for a site. * * @since 3.9.0 * * @param int\|null $segments The number of path segments to consider. WordPress by default looks at * one path segment following the network path. The function default of * null only makes sense when you know the requested path should match a site. * @param string $domain The requested domain. * @param string $path The requested path, in full. / $segments = apply_filters( 'site_by_path_segments_count', $segments, $domain, $path ); if ( null !== $segments && count( $path_segments ) > $segments ) { $path_segments = array_slice( $path_segments, 0, $segments ); } $paths = array(); while ( count( $path_segments ) ) { $paths[] = '/' . implode( '/', $path_segments ) . '/'; array_pop( $path_segments ); } $paths[] = '/'; /* * Determines a site by its domain and path. * * This allows one to short-circuit the default logic, perhaps by * replacing it with a routine that is more optimal for your setup. * * Return null to avoid the short-circuit. Return false if no site * can be found at the requested domain and path. Otherwise, return * a site object. * * @since 3.9.0 * * @param null\|false\|WP_Site $site Site value to return by path. Default null * to continue retrieving the site. * @param string $domain The requested domain. * @param string $path The requested path, in full. * @param int\|null $segments The suggested number of paths to consult. * Default null, meaning the entire path was to be consulted. * @param string[] $paths The paths to search for, based on $path and $segments. / $pre = apply_filters( 'pre_get_site_by_path', null, $domain, $path, $segments, $paths ); if ( null !== $pre ) { if ( false !== $pre && ! $pre instanceof WP_Site ) { $pre = new WP_Site( $pre ); } return $pre; } / * @todo * Caching, etc. Consider alternative optimization routes, * perhaps as an opt-in for plugins, rather than using the pre_* filter. * For example: The segments filter can expand or ignore paths. * If persistent caching is enabled, we could query the DB for a path <> '/' * then cache whether we can just always ignore paths. / / * Either www or non-www is supported, not both. If a www domain is requested, * query for both to provide the proper redirect. / $domains = array( $domain ); if ( str_starts_with( $domain, 'www.' ) ) { $domains[] = substr( $domain, 4 ); } $args = array( 'number' => 1, 'update_site_meta_cache' => false, ); if ( count( $domains ) > 1 ) { $args['domain__in'] = $domains; $args['orderby']['domain_length'] = 'DESC'; } else { $args['domain'] = array_shift( $domains ); } if ( count( $paths ) > 1 ) { $args['path__in'] = $paths; $args['orderby']['path_length'] = 'DESC'; } else { $args['path'] = array_shift( $paths ); } $result = get_sites( $args ); $site = array_shift( $result ); if ( $site ) { return $site; } return false; } /* * Identifies the network and site of a requested domain and path and populates the * corresponding network and site global objects as part of the multisite bootstrap process. * * Prior to 4.6.0, this was a procedural block in `ms-settings.php`. It was wrapped into * a function to facilitate unit tests. It should not be used outside of core. * * Usually, it's easier to query the site first, which then declares its network. * In limited situations, we either can or must find the network first. * * If a network and site are found, a `true` response will be returned so that the * request can continue. * * If neither a network or site is found, `false` or a URL string will be returned * so that either an error can be shown or a redirect can occur. * * @since 4.6.0 * @access private * * @global WP_Network $current_site The current network. * @global WP_Site $current_blog The current site. * * @param string $domain The requested domain. * @param string $path The requested path. * @param bool $subdomain Optional. Whether a subdomain (true) or subdirectory (false) configuration. * Default false. * @return bool\|string True if bootstrap successfully populated `$current_blog` and `$current_site`. * False if bootstrap could not be properly completed. * Redirect URL if parts exist, but the request as a whole can not be fulfilled. / function ms_load_current_site_and_network( $domain, $path, $subdomain = false ) { global $current_site, $current_blog; // If the network is defined in wp-config.php, we can simply use that. if ( defined( 'DOMAIN_CURRENT_SITE' ) && defined( 'PATH_CURRENT_SITE' ) ) { $current_site = new stdClass(); $current_site->id = defined( 'SITE_ID_CURRENT_SITE' ) ? SITE_ID_CURRENT_SITE : 1; $current_site->domain = DOMAIN_CURRENT_SITE; $current_site->path = PATH_CURRENT_SITE; if ( defined( 'BLOG_ID_CURRENT_SITE' ) ) { $current_site->blog_id = BLOG_ID_CURRENT_SITE; } elseif ( defined( 'BLOGID_CURRENT_SITE' ) ) { // Deprecated. $current_site->blog_id = BLOGID_CURRENT_SITE; } if ( 0 === strcasecmp( $current_site->domain, $domain ) && 0 === strcasecmp( $current_site->path, $path ) ) { $current_blog = get_site_by_path( $domain, $path ); } elseif ( '/' !== $current_site->path && 0 === strcasecmp( $current_site->domain, $domain ) && 0 === stripos( $path, $current_site->path ) ) { / * If the current network has a path and also matches the domain and path of the request, * we need to look for a site using the first path segment following the network's path. / $current_blog = get_site_by_path( $domain, $path, 1 + count( explode( '/', trim( $current_site->path, '/' ) ) ) ); } else { // Otherwise, use the first path segment (as usual). $current_blog = get_site_by_path( $domain, $path, 1 ); } } elseif ( ! $subdomain ) { / * A "subdomain" installation can be re-interpreted to mean "can support any domain". * If we're not dealing with one of these installations, then the important part is determining * the network first, because we need the network's path to identify any sites. / $current_site = wp_cache_get( 'current_network', 'site-options' ); if ( ! $current_site ) { // Are there even two networks installed? $networks = get_networks( array( 'number' => 2 ) ); if ( count( $networks ) === 1 ) { $current_site = array_shift( $networks ); wp_cache_add( 'current_network', $current_site, 'site-options' ); } elseif ( empty( $networks ) ) { // A network not found hook should fire here. return false; } } if ( empty( $current_site ) ) { $current_site = WP_Network::get_by_path( $domain, $path, 1 ); } if ( empty( $current_site ) ) { /* * Fires when a network cannot be found based on the requested domain and path. * * At the time of this action, the only recourse is to redirect somewhere * and exit. If you want to declare a particular network, do so earlier. * * @since 4.4.0 * * @param string $domain The domain used to search for a network. * @param string $path The path used to search for a path. / do_action( 'ms_network_not_found', $domain, $path ); return false; } elseif ( $path === $current_site->path ) { $current_blog = get_site_by_path( $domain, $path ); } else { // Search the network path + one more path segment (on top of the network path). $current_blog = get_site_by_path( $domain, $path, substr_count( $current_site->path, '/' ) ); } } else { // Find the site by the domain and at most the first path segment. $current_blog = get_site_by_path( $domain, $path, 1 ); if ( $current_blog ) { $current_site = WP_Network::get_instance( $current_blog->site_id ? $current_blog->site_id : 1 ); } else { // If you don't have a site with the same domain/path as a network, you're pretty screwed, but: $current_site = WP_Network::get_by_path( $domain, $path, 1 ); } } // The network declared by the site trumps any constants. if ( $current_blog && (int) $current_blog->site_id !== $current_site->id ) { $current_site = WP_Network::get_instance( $current_blog->site_id ); } // No network has been found, bail. if ( empty( $current_site ) ) { /* This action is documented in wp-includes/ms-settings.php / do_action( 'ms_network_not_found', $domain, $path ); return false; } // During activation of a new subdomain, the requested site does not yet exist. if ( empty( $current_blog ) && wp_installing() ) { $current_blog = new stdClass(); $current_blog->blog_id = 1; $blog_id = 1; $current_blog->public = 1; } // No site has been found, bail. if ( empty( $current_blog ) ) { // We're going to redirect to the network URL, with some possible modifications. $scheme = is_ssl() ? 'https' : 'http'; $destination = "$scheme://{$current_site->domain}{$current_site->path}"; /* * Fires when a network can be determined but a site cannot. * * At the time of this action, the only recourse is to redirect somewhere * and exit. If you want to declare a particular site, do so earlier. * * @since 3.9.0 * * @param WP_Network $current_site The network that had been determined. * @param string $domain The domain used to search for a site. * @param string $path The path used to search for a site. / do_action( 'ms_site_not_found', $current_site, $domain, $path ); if ( $subdomain && ! defined( 'NOBLOGREDIRECT' ) ) { // For a "subdomain" installation, redirect to the signup form specifically. $destination .= 'wp-signup.php?new=' . str_replace( '.' . $current_site->domain, '', $domain ); } elseif ( $subdomain ) { / * For a "subdomain" installation, the NOBLOGREDIRECT constant * can be used to avoid a redirect to the signup form. * Using the ms_site_not_found action is preferred to the constant. / if ( '%siteurl%' !== NOBLOGREDIRECT ) { $destination = NOBLOGREDIRECT; } } elseif ( 0 === strcasecmp( $current_site->domain, $domain ) ) { / * If the domain we were searching for matches the network's domain, * it's no use redirecting back to ourselves -- it'll cause a loop. * As we couldn't find a site, we're simply not installed. / return false; } return $destination; } // Figure out the current network's main site. if ( empty( $current_site->blog_id ) ) { $current_site->blog_id = get_main_site_id( $current_site->id ); } return true; } /* * Displays a failure message. * * Used when a blog's tables do not exist. Checks for a missing $wpdb->site table as well. * * @access private * @since 3.0.0 * @since 4.4.0 The `$domain` and `$path` parameters were added. * * @global wpdb $wpdb WordPress database abstraction object. * * @param string $domain The requested domain for the error to reference. * @param string $path The requested path for the error to reference. / function ms_not_installed( $domain, $path ) { global $wpdb; if ( ! is_admin() ) { dead_db(); } wp_load_translations_early(); $title = __( 'Error establishing a database connection' ); $msg = '<h1>' . $title . '</h1>'; $msg .= '<p>' . __( 'If your site does not display, please contact the owner of this network.' ) . ''; $msg .= ' ' . __( 'If you are the owner of this network please check that your host’s database server is running properly and all tables are error free.' ) . '</p>'; $query = $wpdb->prepare( 'SHOW TABLES LIKE %s', $wpdb->esc_like( $wpdb->site ) ); if ( ! $wpdb->get_var( $query ) ) { $msg .= '<p>' . sprintf( / translators: %s: Table name. / __( '<strong>Database tables are missing.</strong> This means that your host’s database server is not running, WordPress was not installed properly, or someone deleted %s. You really should look at your database now.' ), '<code>' . $wpdb->site . '</code>' ) . '</p>'; } else { $msg .= '<p>' . sprintf( / translators: 1: Site URL, 2: Table name, 3: Database name. / __( '<strong>Could not find site %1$s.</strong> Searched for table %2$s in database %3$s. Is that right?' ), '<code>' . rtrim( $domain . $path, '/' ) . '</code>', '<code>' . $wpdb->blogs . '</code>', '<code>' . DB_NAME . '</code>' ) . '</p>'; } $msg .= '<p><strong>' . __( 'What do I do now?' ) . '</strong> '; $msg .= sprintf( / translators: %s: Documentation URL. / __( 'Read the <a href="%s" target="_blank">Debugging a WordPress Network</a> article. Some of the suggestions there may help you figure out what went wrong.' ), __( 'https://developer.wordpress.org/advanced-administration/debug/debug-network/' ) ); $msg .= ' ' . __( 'If you are still stuck with this message, then check that your database contains the following tables:' ) . '</p><ul>'; foreach ( $wpdb->tables( 'global' ) as $t => $table ) { if ( 'sitecategories' === $t ) { continue; } $msg .= '<li>' . $table . '</li>'; } $msg .= '</ul>'; wp_die( $msg, $title, array( 'response' => 500 ) ); } /* * This deprecated function formerly set the site_name property of the $current_site object. * * This function simply returns the object, as before. * The bootstrap takes care of setting site_name. * * @access private * @since 3.0.0 * @deprecated 3.9.0 Use get_current_site() instead. * * @param WP_Network $current_site * @return WP_Network / function get_current_site_name( $current_site ) { _deprecated_function( __FUNCTION__, '3.9.0', 'get_current_site()' ); return $current_site; } /* * This deprecated function managed much of the site and network loading in multisite. * * The current bootstrap code is now responsible for parsing the site and network load as * well as setting the global $current_site object. * * @access private * @since 3.0.0 * @deprecated 3.9.0 * * @global WP_Network $current_site * * @return WP_Network / function wpmu_current_site() { global $current_site; _deprecated_function( __FUNCTION__, '3.9.0' ); return $current_site; } /* * Retrieves an object containing information about the requested network. * * @since 3.9.0 * @deprecated 4.7.0 Use get_network() * @see get_network() * * @internal In 4.6.0, converted to use get_network() * * @param object\|int $network The network's database row or ID. * @return WP_Network\|false Object containing network information if found, false if not. */ function wp_get_network( $network ) { _deprecated_function( __FUNCTION__, '4.7.0', 'get_network()' ); $network = get_network( $network ); if ( null === $network ) { return false; } return $network; }