3 * Defines constants and global variables that can be overridden, generally in wp-config.php.
6 * @subpackage Multisite
11 * Defines Multisite upload constants.
13 * Exists for backward compatibility with legacy file-serving through
14 * wp-includes/ms-files.php (wp-content/blogs.php in MU).
18 function ms_upload_constants() {
21 // This filter is attached in ms-default-filters.php but that file is not included during SHORTINIT.
22 add_filter( 'default_site_option_ms_files_rewriting', '__return_true' );
24 if ( ! get_site_option( 'ms_files_rewriting' ) )
27 // Base uploads dir relative to ABSPATH
28 if ( !defined( 'UPLOADBLOGSDIR' ) )
29 define( 'UPLOADBLOGSDIR', 'wp-content/blogs.dir' );
31 // Note, the main site in a post-MU network uses wp-content/uploads.
32 // This is handled in wp_upload_dir() by ignoring UPLOADS for this case.
33 if ( ! defined( 'UPLOADS' ) ) {
34 define( 'UPLOADS', UPLOADBLOGSDIR . "/{$wpdb->blogid}/files/" );
36 // Uploads dir relative to ABSPATH
37 if ( 'wp-content/blogs.dir' == UPLOADBLOGSDIR && ! defined( 'BLOGUPLOADDIR' ) )
38 define( 'BLOGUPLOADDIR', WP_CONTENT_DIR . "/blogs.dir/{$wpdb->blogid}/files/" );
43 * Defines Multisite cookie constants.
47 function ms_cookie_constants( ) {
53 if ( !defined( 'COOKIEPATH' ) )
54 define( 'COOKIEPATH', $current_site->path );
59 if ( !defined( 'SITECOOKIEPATH' ) )
60 define( 'SITECOOKIEPATH', $current_site->path );
65 if ( !defined( 'ADMIN_COOKIE_PATH' ) ) {
66 if ( ! is_subdomain_install() || trim( parse_url( get_option( 'siteurl' ), PHP_URL_PATH ), '/' ) ) {
67 define( 'ADMIN_COOKIE_PATH', SITECOOKIEPATH );
69 define( 'ADMIN_COOKIE_PATH', SITECOOKIEPATH . 'wp-admin' );
76 if ( !defined('COOKIE_DOMAIN') && is_subdomain_install() ) {
77 if ( !empty( $current_site->cookie_domain ) )
78 define('COOKIE_DOMAIN', '.' . $current_site->cookie_domain);
80 define('COOKIE_DOMAIN', '.' . $current_site->domain);
85 * Defines Multisite file constants.
87 * Exists for backward compatibility with legacy file-serving through
88 * wp-includes/ms-files.php (wp-content/blogs.php in MU).
92 function ms_file_constants() {
94 * Optional support for X-Sendfile header
97 if ( !defined( 'WPMU_SENDFILE' ) )
98 define( 'WPMU_SENDFILE', false );
101 * Optional support for X-Accel-Redirect header
104 if ( !defined( 'WPMU_ACCEL_REDIRECT' ) )
105 define( 'WPMU_ACCEL_REDIRECT', false );
109 * Defines Multisite subdomain constants and handles warnings and notices.
111 * VHOST is deprecated in favor of SUBDOMAIN_INSTALL, which is a bool.
113 * On first call, the constants are checked and defined. On second call,
114 * we will have translations loaded and can trigger warnings easily.
118 function ms_subdomain_constants() {
119 static $error = null;
120 static $error_warn = false;
122 if ( false === $error )
126 $vhost_deprecated = __( 'The constant <code>VHOST</code> <strong>is deprecated</strong>. Use the boolean constant <code>SUBDOMAIN_INSTALL</code> in wp-config.php to enable a subdomain configuration. Use is_subdomain_install() to check whether a subdomain configuration is enabled.' );
128 trigger_error( __( '<strong>Conflicting values for the constants VHOST and SUBDOMAIN_INSTALL.</strong> The value of SUBDOMAIN_INSTALL will be assumed to be your subdomain configuration setting.' ) . ' ' . $vhost_deprecated, E_USER_WARNING );
130 _deprecated_argument( 'define()', '3.0', $vhost_deprecated );
135 if ( defined( 'SUBDOMAIN_INSTALL' ) && defined( 'VHOST' ) ) {
136 if ( SUBDOMAIN_INSTALL == ( 'yes' == VHOST ) ) {
139 $error = $error_warn = true;
141 } elseif ( defined( 'SUBDOMAIN_INSTALL' ) ) {
142 define( 'VHOST', SUBDOMAIN_INSTALL ? 'yes' : 'no' );
143 } elseif ( defined( 'VHOST' ) ) {
145 define( 'SUBDOMAIN_INSTALL', 'yes' == VHOST );
147 define( 'SUBDOMAIN_INSTALL', false );
148 define( 'VHOST', 'no' );
151 add_action( 'init', 'ms_subdomain_constants' );