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<?php
/**
* Used to set up and fix common variables and include
* the Multisite procedural and class library.
*
* Allows for some configuration in wp-config.php (see ms-default-constants.php)
*
* @package WordPress
* @subpackage Multisite
* @since 3.0.0
*/
/** Include Multisite initialization functions */
require( ABSPATH . WPINC . '/ms-load.php' );
require( ABSPATH . WPINC . '/ms-default-constants.php' );
if ( defined( 'SUNRISE' ) )
include_once( WP_CONTENT_DIR . '/sunrise.php' );
/** Check for and define SUBDOMAIN_INSTALL and the deprecated VHOST constant. */
ms_subdomain_constants();
if ( !isset( $current_site ) || !isset( $current_blog ) ) {
$domain = addslashes( $_SERVER['HTTP_HOST'] );
if ( false !== strpos( $domain, ':' ) ) {
if ( substr( $domain, -3 ) == ':80' ) {
$domain = substr( $domain, 0, -3 );
$_SERVER['HTTP_HOST'] = substr( $_SERVER['HTTP_HOST'], 0, -3 );
} elseif ( substr( $domain, -4 ) == ':443' ) {
$domain = substr( $domain, 0, -4 );
$_SERVER['HTTP_HOST'] = substr( $_SERVER['HTTP_HOST'], 0, -4 );
} else {
wp_load_translations_early();
wp_die( __( 'Multisite only works without the port number in the URL.' ) );
}
}
$domain = rtrim( $domain, '.' );
$cookie_domain = $domain;
if ( substr( $cookie_domain, 0, 4 ) == 'www.' )
$cookie_domain = substr( $cookie_domain, 4 );
$path = preg_replace( '|([a-z0-9-]+.php.*)|', '', $_SERVER['REQUEST_URI'] );
$path = str_replace ( '/wp-admin/', '/', $path );
$path = preg_replace( '|(/[a-z0-9-]+?/).*|', '$1', $path );
$current_site = wpmu_current_site();
if ( ! isset( $current_site->blog_id ) )
$current_site->blog_id = $wpdb->get_var( $wpdb->prepare( "SELECT blog_id FROM $wpdb->blogs WHERE domain = %s AND path = %s", $current_site->domain, $current_site->path ) );
if ( is_subdomain_install() ) {
$current_blog = wp_cache_get( 'current_blog_' . $domain, 'site-options' );
if ( !$current_blog ) {
$current_blog = get_blog_details( array( 'domain' => $domain ), false );
if ( $current_blog )
wp_cache_set( 'current_blog_' . $domain, $current_blog, 'site-options' );
}
if ( $current_blog && $current_blog->site_id != $current_site->id ) {
$current_site = $wpdb->get_row( $wpdb->prepare( "SELECT * FROM $wpdb->site WHERE id = %d", $current_blog->site_id ) );
if ( ! isset( $current_site->blog_id ) )
$current_site->blog_id = $wpdb->get_var( $wpdb->prepare( "SELECT blog_id FROM $wpdb->blogs WHERE domain = %s AND path = %s", $current_site->domain, $current_site->path ) );
} else
$blogname = substr( $domain, 0, strpos( $domain, '.' ) );
} else {
$blogname = htmlspecialchars( substr( $_SERVER[ 'REQUEST_URI' ], strlen( $path ) ) );
if ( false !== strpos( $blogname, '/' ) )
$blogname = substr( $blogname, 0, strpos( $blogname, '/' ) );
if ( false !== strpos( $blogname, '?' ) )
$blogname = substr( $blogname, 0, strpos( $blogname, '?' ) );
$reserved_blognames = array( 'page', 'comments', 'blog', 'wp-admin', 'wp-includes', 'wp-content', 'files', 'feed' );
if ( $blogname != '' && ! in_array( $blogname, $reserved_blognames ) && ! is_file( $blogname ) )
$path .= $blogname . '/';
$current_blog = wp_cache_get( 'current_blog_' . $domain . $path, 'site-options' );
if ( ! $current_blog ) {
$current_blog = get_blog_details( array( 'domain' => $domain, 'path' => $path ), false );
if ( $current_blog )
wp_cache_set( 'current_blog_' . $domain . $path, $current_blog, 'site-options' );
}
unset($reserved_blognames);
}
if ( ! defined( 'WP_INSTALLING' ) && is_subdomain_install() && ! is_object( $current_blog ) ) {
if ( defined( 'NOBLOGREDIRECT' ) ) {
$destination = NOBLOGREDIRECT;
if ( '%siteurl%' == $destination )
$destination = "http://" . $current_site->domain . $current_site->path;
} else {
$destination = 'http://' . $current_site->domain . $current_site->path . 'wp-signup.php?new=' . str_replace( '.' . $current_site->domain, '', $domain );
}
header( 'Location: ' . $destination );
die();
}
if ( ! defined( 'WP_INSTALLING' ) ) {
if ( $current_site && ! $current_blog ) {
if ( $current_site->domain != $_SERVER[ 'HTTP_HOST' ] ) {
header( 'Location: http://' . $current_site->domain . $current_site->path );
exit;
}
$current_blog = get_blog_details( array( 'domain' => $current_site->domain, 'path' => $current_site->path ), false );
}
if ( ! $current_blog || ! $current_site )
ms_not_installed();
}
$blog_id = $current_blog->blog_id;
$public = $current_blog->public;
if ( empty( $current_blog->site_id ) )
$current_blog->site_id = 1;
$site_id = $current_blog->site_id;
$current_site = get_current_site_name( $current_site );
if ( ! $blog_id ) {
if ( defined( 'WP_INSTALLING' ) ) {
$current_blog->blog_id = $blog_id = 1;
} else {
wp_load_translations_early();
$msg = ! $wpdb->get_var( "SHOW TABLES LIKE '$wpdb->site'" ) ? ' ' . __( 'Database tables are missing.' ) : '';
wp_die( __( 'No site by that name on this system.' ) . $msg );
}
}
}
$wpdb->set_prefix( $table_prefix, false ); // $table_prefix can be set in sunrise.php
$wpdb->set_blog_id( $current_blog->blog_id, $current_blog->site_id );
$table_prefix = $wpdb->get_blog_prefix();
$_wp_switched_stack = array();
$switched = false;
// need to init cache again after blog_id is set
wp_start_object_cache();
// Define upload directory constants
ms_upload_constants();
