546 lines
20 KiB
PHP
546 lines
20 KiB
PHP
<?php
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/**
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* These functions are needed to load Multisite.
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*
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* @since 3.0.0
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*
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* @package WordPress
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* @subpackage Multisite
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*/
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/**
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* Whether a subdomain configuration is enabled.
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*
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* @since 3.0.0
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*
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* @return bool True if subdomain configuration is enabled, false otherwise.
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*/
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function is_subdomain_install() {
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if ( defined('SUBDOMAIN_INSTALL') )
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return SUBDOMAIN_INSTALL;
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return ( defined( 'VHOST' ) && VHOST == 'yes' );
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}
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/**
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* Returns array of network plugin files to be included in global scope.
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*
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* The default directory is wp-content/plugins. To change the default directory
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* manually, define `WP_PLUGIN_DIR` and `WP_PLUGIN_URL` in `wp-config.php`.
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*
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* @access private
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* @since 3.1.0
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*
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* @return array Files to include.
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*/
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function wp_get_active_network_plugins() {
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$active_plugins = (array) get_site_option( 'active_sitewide_plugins', array() );
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if ( empty( $active_plugins ) )
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return array();
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$plugins = array();
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$active_plugins = array_keys( $active_plugins );
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sort( $active_plugins );
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foreach ( $active_plugins as $plugin ) {
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if ( ! validate_file( $plugin ) // $plugin must validate as file
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&& '.php' == substr( $plugin, -4 ) // $plugin must end with '.php'
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&& file_exists( WP_PLUGIN_DIR . '/' . $plugin ) // $plugin must exist
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)
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$plugins[] = WP_PLUGIN_DIR . '/' . $plugin;
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}
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return $plugins;
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}
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/**
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* Checks status of current blog.
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*
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* Checks if the blog is deleted, inactive, archived, or spammed.
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*
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* Dies with a default message if the blog does not pass the check.
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*
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* To change the default message when a blog does not pass the check,
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* use the wp-content/blog-deleted.php, blog-inactive.php and
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* blog-suspended.php drop-ins.
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*
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* @since 3.0.0
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*
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* @return true|string Returns true on success, or drop-in file to include.
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*/
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function ms_site_check() {
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$blog = get_blog_details();
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/**
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* Filter checking the status of the current blog.
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*
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* @since 3.0.0
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*
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* @param bool null Whether to skip the blog status check. Default null.
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*/
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$check = apply_filters( 'ms_site_check', null );
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if ( null !== $check )
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return true;
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// Allow super admins to see blocked sites
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if ( is_super_admin() )
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return true;
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if ( '1' == $blog->deleted ) {
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if ( file_exists( WP_CONTENT_DIR . '/blog-deleted.php' ) )
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return WP_CONTENT_DIR . '/blog-deleted.php';
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else
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wp_die( __( 'This site is no longer available.' ), '', array( 'response' => 410 ) );
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}
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if ( '2' == $blog->deleted ) {
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if ( file_exists( WP_CONTENT_DIR . '/blog-inactive.php' ) ) {
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return WP_CONTENT_DIR . '/blog-inactive.php';
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} else {
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$admin_email = str_replace( '@', ' AT ', get_site_option( 'admin_email', 'support@' . get_current_site()->domain ) );
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wp_die(
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/* translators: %s: admin email link */
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sprintf( __( 'This site has not been activated yet. If you are having problems activating your site, please contact %s.' ),
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sprintf( '<a href="mailto:%s">%s</a>', $admin_email )
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)
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);
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}
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}
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if ( $blog->archived == '1' || $blog->spam == '1' ) {
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if ( file_exists( WP_CONTENT_DIR . '/blog-suspended.php' ) )
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return WP_CONTENT_DIR . '/blog-suspended.php';
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else
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wp_die( __( 'This site has been archived or suspended.' ), '', array( 'response' => 410 ) );
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}
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return true;
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}
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/**
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* Retrieve the closest matching network for a domain and path.
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*
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* @since 3.9.0
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* @since 4.4.0 Converted to a wrapper for WP_Network::get_by_path()
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*
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* @param string $domain Domain to check.
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* @param string $path Path to check.
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* @param int|null $segments Path segments to use. Defaults to null, or the full path.
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* @return WP_Network|false Network object if successful. False when no network is found.
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*/
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function get_network_by_path( $domain, $path, $segments = null ) {
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return WP_Network::get_by_path( $domain, $path, $segments );
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}
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/**
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* Retrieve an object containing information about the requested network.
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*
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* @since 3.9.0
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* @since 4.4.0 Converted to leverage WP_Network
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*
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* @param object|int $network The network's database row or ID.
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* @return WP_Network|false Object containing network information if found, false if not.
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*/
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function wp_get_network( $network ) {
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if ( ! is_object( $network ) ) {
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$network = WP_Network::get_instance( $network );
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} else {
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$network = new WP_Network( $network );
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}
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return $network;
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}
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/**
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* Retrieve a site object by its domain and path.
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*
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* @since 3.9.0
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*
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* @global wpdb $wpdb WordPress database abstraction object.
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*
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* @param string $domain Domain to check.
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* @param string $path Path to check.
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* @param int|null $segments Path segments to use. Defaults to null, or the full path.
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* @return object|false Site object if successful. False when no site is found.
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*/
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function get_site_by_path( $domain, $path, $segments = null ) {
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global $wpdb;
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$path_segments = array_filter( explode( '/', trim( $path, '/' ) ) );
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/**
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* Filter the number of path segments to consider when searching for a site.
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*
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* @since 3.9.0
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*
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* @param int|null $segments The number of path segments to consider. WordPress by default looks at
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* one path segment following the network path. The function default of
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* null only makes sense when you know the requested path should match a site.
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* @param string $domain The requested domain.
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* @param string $path The requested path, in full.
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*/
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$segments = apply_filters( 'site_by_path_segments_count', $segments, $domain, $path );
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if ( null !== $segments && count( $path_segments ) > $segments ) {
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$path_segments = array_slice( $path_segments, 0, $segments );
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}
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$paths = array();
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while ( count( $path_segments ) ) {
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$paths[] = '/' . implode( '/', $path_segments ) . '/';
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array_pop( $path_segments );
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}
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$paths[] = '/';
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/**
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* Determine a site by its domain and path.
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*
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* This allows one to short-circuit the default logic, perhaps by
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* replacing it with a routine that is more optimal for your setup.
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*
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* Return null to avoid the short-circuit. Return false if no site
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* can be found at the requested domain and path. Otherwise, return
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* a site object.
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*
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* @since 3.9.0
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*
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* @param null|bool|object $site Site value to return by path.
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* @param string $domain The requested domain.
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* @param string $path The requested path, in full.
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* @param int|null $segments The suggested number of paths to consult.
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* Default null, meaning the entire path was to be consulted.
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* @param array $paths The paths to search for, based on $path and $segments.
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*/
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$pre = apply_filters( 'pre_get_site_by_path', null, $domain, $path, $segments, $paths );
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if ( null !== $pre ) {
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return $pre;
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}
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/*
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* @todo
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* get_blog_details(), caching, etc. Consider alternative optimization routes,
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* perhaps as an opt-in for plugins, rather than using the pre_* filter.
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* For example: The segments filter can expand or ignore paths.
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* If persistent caching is enabled, we could query the DB for a path <> '/'
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* then cache whether we can just always ignore paths.
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*/
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// Either www or non-www is supported, not both. If a www domain is requested,
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// query for both to provide the proper redirect.
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$domains = array( $domain );
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if ( 'www.' === substr( $domain, 0, 4 ) ) {
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$domains[] = substr( $domain, 4 );
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$search_domains = "'" . implode( "', '", $wpdb->_escape( $domains ) ) . "'";
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}
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if ( count( $paths ) > 1 ) {
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$search_paths = "'" . implode( "', '", $wpdb->_escape( $paths ) ) . "'";
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}
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if ( count( $domains ) > 1 && count( $paths ) > 1 ) {
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$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" );
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} elseif ( count( $domains ) > 1 ) {
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$sql = $wpdb->prepare( "SELECT * FROM $wpdb->blogs WHERE path = %s", $paths[0] );
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$sql .= " AND domain IN ($search_domains) ORDER BY CHAR_LENGTH(domain) DESC LIMIT 1";
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$site = $wpdb->get_row( $sql );
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} elseif ( count( $paths ) > 1 ) {
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$sql = $wpdb->prepare( "SELECT * FROM $wpdb->blogs WHERE domain = %s", $domains[0] );
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$sql .= " AND path IN ($search_paths) ORDER BY CHAR_LENGTH(path) DESC LIMIT 1";
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$site = $wpdb->get_row( $sql );
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} else {
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$site = $wpdb->get_row( $wpdb->prepare( "SELECT * FROM $wpdb->blogs WHERE domain = %s AND path = %s", $domains[0], $paths[0] ) );
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}
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if ( $site ) {
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// @todo get_blog_details()
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return $site;
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}
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return false;
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}
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/**
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* Identifies the network and site of a requested domain and path and populates the
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* corresponding network and site global objects as part of the multisite bootstrap process.
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*
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* Prior to 4.6.0, this was a procedural block in `ms-settings.php`. It was wrapped into
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* a function to facilitate unit tests. It should not be used outside of core.
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*
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* Usually, it's easier to query the site first, which then declares its network.
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* In limited situations, we either can or must find the network first.
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*
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* If a network and site are found, a `true` response will be returned so that the
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* request can continue.
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*
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* If neither a network or site is found, `false` or a URL string will be returned
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* so that either an error can be shown or a redirect can occur.
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*
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* @since 4.6.0
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* @access private
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*
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* @global wpdb $wpdb WordPress database abstraction object.
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* @global WP_Network $current_site The current network.
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* @global WP_Site $current_blog The current site.
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*
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* @param string $domain The requested domain.
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* @param string $path The requested path.
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* @param bool $subdomain Whether a subdomain (true) or subdirectory (false) configuration.
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* @return bool|string True if bootstrap successfully populated `$current_blog` and `$current_site`.
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* False if bootstrap could not be properly completed.
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* Redirect URL if parts exist, but the request as a whole can not be fulfilled.
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*/
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function ms_load_current_site_and_network( $domain, $path, $subdomain = false ) {
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global $wpdb, $current_site, $current_blog;
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// If the network is defined in wp-config.php, we can simply use that.
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if ( defined( 'DOMAIN_CURRENT_SITE' ) && defined( 'PATH_CURRENT_SITE' ) ) {
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$current_site = new stdClass;
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$current_site->id = defined( 'SITE_ID_CURRENT_SITE' ) ? SITE_ID_CURRENT_SITE : 1;
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$current_site->domain = DOMAIN_CURRENT_SITE;
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$current_site->path = PATH_CURRENT_SITE;
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if ( defined( 'BLOG_ID_CURRENT_SITE' ) ) {
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$current_site->blog_id = BLOG_ID_CURRENT_SITE;
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} elseif ( defined( 'BLOGID_CURRENT_SITE' ) ) { // deprecated.
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$current_site->blog_id = BLOGID_CURRENT_SITE;
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}
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if ( 0 === strcasecmp( $current_site->domain, $domain ) && 0 === strcasecmp( $current_site->path, $path ) ) {
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$current_blog = get_site_by_path( $domain, $path );
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} elseif ( '/' !== $current_site->path && 0 === strcasecmp( $current_site->domain, $domain ) && 0 === stripos( $path, $current_site->path ) ) {
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// If the current network has a path and also matches the domain and path of the request,
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// we need to look for a site using the first path segment following the network's path.
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$current_blog = get_site_by_path( $domain, $path, 1 + count( explode( '/', trim( $current_site->path, '/' ) ) ) );
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} else {
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// Otherwise, use the first path segment (as usual).
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$current_blog = get_site_by_path( $domain, $path, 1 );
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}
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} elseif ( ! $subdomain ) {
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/*
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* A "subdomain" install can be re-interpreted to mean "can support any domain".
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* If we're not dealing with one of these installs, then the important part is determining
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* the network first, because we need the network's path to identify any sites.
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*/
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if ( ! $current_site = wp_cache_get( 'current_network', 'site-options' ) ) {
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// Are there even two networks installed?
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$one_network = $wpdb->get_row( "SELECT * FROM $wpdb->site LIMIT 2" ); // [sic]
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if ( 1 === $wpdb->num_rows ) {
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$current_site = new WP_Network( $one_network );
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wp_cache_add( 'current_network', $current_site, 'site-options' );
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} elseif ( 0 === $wpdb->num_rows ) {
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// A network not found hook should fire here.
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return false;
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}
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}
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if ( empty( $current_site ) ) {
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$current_site = WP_Network::get_by_path( $domain, $path, 1 );
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}
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if ( empty( $current_site ) ) {
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/**
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* Fires when a network cannot be found based on the requested domain and path.
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*
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* At the time of this action, the only recourse is to redirect somewhere
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* and exit. If you want to declare a particular network, do so earlier.
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*
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* @since 4.4.0
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*
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* @param string $domain The domain used to search for a network.
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* @param string $path The path used to search for a path.
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*/
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do_action( 'ms_network_not_found', $domain, $path );
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return false;
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} elseif ( $path === $current_site->path ) {
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$current_blog = get_site_by_path( $domain, $path );
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} else {
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// Search the network path + one more path segment (on top of the network path).
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$current_blog = get_site_by_path( $domain, $path, substr_count( $current_site->path, '/' ) );
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}
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} else {
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// Find the site by the domain and at most the first path segment.
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$current_blog = get_site_by_path( $domain, $path, 1 );
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if ( $current_blog ) {
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$current_site = WP_Network::get_instance( $current_blog->site_id ? $current_blog->site_id : 1 );
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} else {
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// If you don't have a site with the same domain/path as a network, you're pretty screwed, but:
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$current_site = WP_Network::get_by_path( $domain, $path, 1 );
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}
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}
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// The network declared by the site trumps any constants.
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if ( $current_blog && $current_blog->site_id != $current_site->id ) {
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$current_site = WP_Network::get_instance( $current_blog->site_id );
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}
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// No network has been found, bail.
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if ( empty( $current_site ) ) {
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/** This action is documented in wp-includes/ms-settings.php */
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do_action( 'ms_network_not_found', $domain, $path );
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return false;
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}
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// During activation of a new subdomain, the requested site does not yet exist.
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if ( empty( $current_blog ) && wp_installing() ) {
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$current_blog = new stdClass;
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$current_blog->blog_id = $blog_id = 1;
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$current_blog->public = 1;
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}
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// No site has been found, bail.
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if ( empty( $current_blog ) ) {
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// We're going to redirect to the network URL, with some possible modifications.
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$scheme = is_ssl() ? 'https' : 'http';
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$destination = "$scheme://{$current_site->domain}{$current_site->path}";
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/**
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* Fires when a network can be determined but a site cannot.
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*
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* At the time of this action, the only recourse is to redirect somewhere
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* and exit. If you want to declare a particular site, do so earlier.
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*
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* @since 3.9.0
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*
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* @param object $current_site The network that had been determined.
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* @param string $domain The domain used to search for a site.
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* @param string $path The path used to search for a site.
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*/
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do_action( 'ms_site_not_found', $current_site, $domain, $path );
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if ( $subdomain && ! defined( 'NOBLOGREDIRECT' ) ) {
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// For a "subdomain" install, redirect to the signup form specifically.
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$destination .= 'wp-signup.php?new=' . str_replace( '.' . $current_site->domain, '', $domain );
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} elseif ( $subdomain ) {
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// For a "subdomain" install, the NOBLOGREDIRECT constant
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// can be used to avoid a redirect to the signup form.
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// Using the ms_site_not_found action is preferred to the constant.
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if ( '%siteurl%' !== NOBLOGREDIRECT ) {
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$destination = NOBLOGREDIRECT;
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}
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} elseif ( 0 === strcasecmp( $current_site->domain, $domain ) ) {
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/*
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* If the domain we were searching for matches the network's domain,
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* it's no use redirecting back to ourselves -- it'll cause a loop.
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* As we couldn't find a site, we're simply not installed.
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*/
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return false;
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}
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return $destination;
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}
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// Figure out the current network's main site.
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if ( empty( $current_site->blog_id ) ) {
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if ( $current_blog->domain === $current_site->domain && $current_blog->path === $current_site->path ) {
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$current_site->blog_id = $current_blog->blog_id;
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} elseif ( ! $current_site->blog_id = wp_cache_get( 'network:' . $current_site->id . ':main_site', 'site-options' ) ) {
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$current_site->blog_id = $wpdb->get_var( $wpdb->prepare( "SELECT blog_id FROM $wpdb->blogs WHERE domain = %s AND path = %s",
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$current_site->domain, $current_site->path ) );
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wp_cache_add( 'network:' . $current_site->id . ':main_site', $current_site->blog_id, 'site-options' );
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}
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}
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return true;
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}
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/**
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* Displays a failure message.
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*
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* Used when a blog's tables do not exist. Checks for a missing $wpdb->site table as well.
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*
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* @access private
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* @since 3.0.0
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* @since 4.4.0 The `$domain` and `$path` parameters were added.
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*
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* @global wpdb $wpdb WordPress database abstraction object.
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*
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* @param string $domain The requested domain for the error to reference.
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* @param string $path The requested path for the error to reference.
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*/
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function ms_not_installed( $domain, $path ) {
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global $wpdb;
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if ( ! is_admin() ) {
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dead_db();
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}
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wp_load_translations_early();
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|
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$title = __( 'Error establishing a database connection' );
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|
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$msg = '<h1>' . $title . '</h1>';
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$msg .= '<p>' . __( 'If your site does not display, please contact the owner of this network.' ) . '';
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$msg .= ' ' . __( 'If you are the owner of this network please check that MySQL is running properly and all tables are error free.' ) . '</p>';
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$query = $wpdb->prepare( "SHOW TABLES LIKE %s", $wpdb->esc_like( $wpdb->site ) );
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if ( ! $wpdb->get_var( $query ) ) {
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$msg .= '<p>' . sprintf(
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|
/* translators: %s: table name */
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__( '<strong>Database tables are missing.</strong> This means that MySQL is not running, WordPress was not installed properly, or someone deleted %s. You really should look at your database now.' ),
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'<code>' . $wpdb->site . '</code>'
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|
) . '</p>';
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} else {
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|
$msg .= '<p>' . sprintf(
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|
/* translators: 1: site url, 2: table name, 3: database name */
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|
__( '<strong>Could not find site %1$s.</strong> Searched for table %2$s in database %3$s. Is that right?' ),
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|
'<code>' . rtrim( $domain . $path, '/' ) . '</code>',
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|
'<code>' . $wpdb->blogs . '</code>',
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|
'<code>' . DB_NAME . '</code>'
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|
) . '</p>';
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|
}
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|
$msg .= '<p><strong>' . __( 'What do I do now?' ) . '</strong> ';
|
|
/* translators: %s: Codex URL */
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|
$msg .= sprintf( __( 'Read the <a href="%s" target="_blank">bug report</a> page. Some of the guidelines there may help you figure out what went wrong.' ),
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|
__( 'https://codex.wordpress.org/Debugging_a_WordPress_Network' )
|
|
);
|
|
$msg .= ' ' . __( 'If you’re still stuck with this message, then check that your database contains the following tables:' ) . '</p><ul>';
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|
foreach ( $wpdb->tables('global') as $t => $table ) {
|
|
if ( 'sitecategories' == $t )
|
|
continue;
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|
$msg .= '<li>' . $table . '</li>';
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|
}
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|
$msg .= '</ul>';
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|
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|
wp_die( $msg, $title, array( 'response' => 500 ) );
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|
}
|
|
|
|
/**
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|
* This deprecated function formerly set the site_name property of the $current_site object.
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|
*
|
|
* This function simply returns the object, as before.
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|
* The bootstrap takes care of setting site_name.
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|
*
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|
* @access private
|
|
* @since 3.0.0
|
|
* @deprecated 3.9.0 Use get_current_site() instead.
|
|
*
|
|
* @param object $current_site
|
|
* @return object
|
|
*/
|
|
function get_current_site_name( $current_site ) {
|
|
_deprecated_function( __FUNCTION__, '3.9', '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 object $current_site
|
|
*
|
|
* @return object
|
|
*/
|
|
function wpmu_current_site() {
|
|
global $current_site;
|
|
_deprecated_function( __FUNCTION__, '3.9' );
|
|
return $current_site;
|
|
}
|