WP_PLUGIN_DIR and WP_PLUGIN_URL * in wp-config.php. * * @access private * @since 3.1.0 * @return array 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 && '.php' == substr( $plugin, -4 ) // $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 bool|string Returns true on success, or drop-in file to include. */ function ms_site_check() { $blog = get_blog_details(); /** * Filter checking the status of the current blog. * * @since 3.0.0 * * @param bool null 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; 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' == $blog->deleted ) { if ( file_exists( WP_CONTENT_DIR . '/blog-inactive.php' ) ) return WP_CONTENT_DIR . '/blog-inactive.php'; else wp_die( sprintf( __( 'This site has not been activated yet. If you are having problems activating your site, please contact %1$s.' ), str_replace( '@', ' AT ', get_site_option( 'admin_email', 'support@' . get_current_site()->domain ) ) ) ); } if ( $blog->archived == '1' || $blog->spam == '1' ) { 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 '/blog-suspended.php'; else wp_die( __( 'This site has been archived or suspended.'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; } /** * Retrieve a network object by its domain and path. * * @since 3.9.0 * * @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 object|bool Network object if successful. False when no network is found. */ function get_network_by_path( $domain, $path, $segments = null ) { global $wpdb; $domains = $exact_domains = array( $domain ); $pieces = explode( '.', $domain ); /* * It's possible one domain to search is 'com', but it might as well * be 'localhost' or some other locally mapped domain. */ while ( array_shift( $pieces ) ) { if ( $pieces ) { $domains[] = implode( '.', $pieces ); } } /* * If we've gotten to this function during normal execution, there is * more than one network installed. At this point, who knows how many * we have. Attempt to optimize for the situation where networks are * only domains, thus meaning paths never need to be considered. * * This is a very basic optimization; anything further could have drawbacks * depending on the setup, so this is best done per-install. */ $using_paths = true; if ( wp_using_ext_object_cache() ) { $using_paths = wp_cache_get( 'networks_have_paths', 'site-options' ); if ( false === $using_paths ) { $using_paths = (bool) $wpdb->get_var( "SELECT id FROM $wpdb->site WHERE path <> '/' LIMIT 1" ); wp_cache_add( 'networks_have_paths', (int) $using_paths, 'site-options' ); } } $paths = array(); if ( $using_paths ) { $path_segments = array_filter( explode( '/', trim( $path, "/" ) ) ); /** * Filter 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. The function default of null only makes sense when you * know the requested path should match a network. * @param string $domain The requested domain. * @param string $path The requested path, in full. */ $segments = apply_filters( 'network_by_path_segments_count', $segments, $domain, $path ); if ( null !== $segments && count($path_segments ) > $segments ) { $path_segments = array_slice( $path_segments, 0, $segments ); } while ( count( $path_segments ) ) { $paths[] = '/' . implode( '/', $path_segments ) . '/'; array_pop( $path_segments ); } $paths[] = '/'; } /** * Determine a network 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 network * can be found at the requested domain and path. Otherwise, return * an object from wp_get_network(). * * @since 3.9.0 * * @param null|bool|object $network Network value to return by path. * @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 array $paths The paths to search for, based on $path and $segments. */ $pre = apply_filters( 'pre_get_network_by_path', null, $domain, $path, $segments, $paths ); if ( null !== $pre ) { return $pre; } // @todo Consider additional optimization routes, perhaps as an opt-in for plugins. // We already have paths covered. What about how far domains should be drilled down (including www)? $search_domains = "'" . implode( "', '", $wpdb->_escape( $domains ) ) . "'"; if ( ! $using_paths ) { $network = $wpdb->get_row( "SELECT id, domain, path FROM $wpdb->site WHERE domain IN ($search_domains) ORDER BY CHAR_LENGTH(domain) DESC LIMIT 1" ); if ( $network ) { return wp_get_network( $network ); } return false; } else { $search_paths = "'" . implode( "', '", $wpdb->_escape( $paths ) ) . "'"; $networks = $wpdb->get_results( "SELECT id, domain, path FROM $wpdb->site WHERE domain IN ($search_domains) AND path IN ($search_paths) ORDER BY CHAR_LENGTH(domain) DESC, CHAR_LENGTH(path) DESC" ); } /* * Domains are sorted by length of domain, then by length of path. * The domain must match for the path to be considered. Otherwise, * a network with the path of / will suffice. */ $found = false; foreach ( $networks as $network ) { if ( $network->domain === $domain || "www.$network->domain" === $domain ) { if ( in_array( $network->path, $paths, true ) ) { $found = true; break; } } if ( $network->path === '/' ) { $found = true; break; } } if ( $found ) { return wp_get_network( $network ); } return false; } /** * Retrieve an object containing information about the requested network. * * @since 3.9.0 * * @param object|int $network The network's database row or ID. * @return object|bool Object containing network information if found, false if not. */ function wp_get_network( $network ) { global $wpdb; if ( ! is_object( $network ) ) { $network = $wpdb->get_row( $wpdb->prepare( "SELECT * FROM $wpdb->site WHERE id = %d", $network ) ); if ( ! $network ) { return false; } } return $network; } /** * Retrieve a site object by its domain and path. * * @since 3.9.0 * * @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 object|bool Site object if successful. False when no site is found. */ function get_site_by_path( $domain, $path, $segments = null ) { global $wpdb; $path_segments = array_filter( explode( '/', trim( $path, '/' ) ) ); /** * Filter 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 ); } while ( count( $path_segments ) ) { $paths[] = '/' . implode( '/', $path_segments ) . '/'; array_pop( $path_segments ); } $paths[] = '/'; /** * Determine 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|bool|object $site Site value to return by path. * @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 array $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 ) { return $pre; } /* * @todo * get_blog_details(), 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 ( 'www.' === substr( $domain, 0, 4 ) ) { $domains[] = substr( $domain, 4 ); $search_domains = "'" . implode( "', '", $wpdb->_escape( $domains ) ) . "'"; } if ( count( $paths ) > 1 ) { $search_paths = "'" . implode( "', '", $wpdb->_escape( $paths ) ) . "'"; } if ( count( $domains ) > 1 && count( $paths ) > 1 ) { $site = $wpdb->get_row( "SELECT * FROM $wpdb->blogs WHERE domain IN ($search_domains) AND path IN ($search_paths) ORDER BY CHAR_LENGTH(domain) DESC, CHAR_LENGTH(path) DESC LIMIT 1" ); } elseif ( count( $domains ) > 1 ) { $sql = $wpdb->prepare( "SELECT * FROM $wpdb->blogs WHERE path = %s", $paths[0] ); $sql .= " AND domain IN ($search_domains) ORDER BY CHAR_LENGTH(domain) DESC LIMIT 1"; $site = $wpdb->get_row( $sql ); } elseif ( count( $paths ) > 1 ) { $sql = $wpdb->prepare( "SELECT * FROM $wpdb->blogs WHERE domain = %s", $domains[0] ); $sql .= " AND path IN ($search_paths) ORDER BY CHAR_LENGTH(path) DESC LIMIT 1"; $site = $wpdb->get_row( $sql ); } else { $site = $wpdb->get_row( $wpdb->prepare( "SELECT * FROM $wpdb->blogs WHERE domain = %s AND path = %s", $domains[0], $paths[0] ) ); } if ( $site ) { // @todo get_blog_details() return $site; } return false; } /** * 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 */ function ms_not_installed() { global $wpdb, $domain, $path; wp_load_translations_early(); $title = __( 'Error establishing a database connection' ); $msg = '

' . $title . '

'; if ( ! is_admin() ) die( $msg ); $msg .= '

' . __( '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 MySQL is running properly and all tables are error free.' ) . '

'; if ( ! $wpdb->get_var( "SHOW TABLES LIKE '$wpdb->site'" ) ) $msg .= '

' . sprintf( __( 'Database tables are missing. This means that MySQL is not running, WordPress was not installed properly, or someone deleted %s. You really should look at your database now.' ), $wpdb->site ) . '

'; else $msg .= '

' . sprintf( __( 'Could not find site %1$s. Searched for table %2$s in database %3$s. Is that right?' ), rtrim( $domain . $path, '/' ), $wpdb->blogs, DB_NAME ) . '

'; $msg .= '

' . __( 'What do I do now?' ) . ' '; $msg .= __( 'Read the bug report page. Some of the guidelines there may help you figure out what went wrong.' ); $msg .= ' ' . __( 'If you’re still stuck with this message, then check that your database contains the following tables:' ) . '

'; wp_die( $msg, $title ); } /** * 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 * * @param object $current_site * @return object */ function get_current_site_name( $current_site ) { _deprecated_function( __FUNCTION__, '3.9' ); 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 * * @return object */ function wpmu_current_site() { global $current_site; _deprecated_function( __FUNCTION__, '3.9' ); return $current_site; }