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 user has elected to delete their account and the content 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wp_die( __( 'This site has been archived or suspended.'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;
}
/**
* Sets current site name.
*
* @access private
* @since 3.0.0
* @return object $current_site object with site_name
*/
function get_current_site_name( $current_site ) {
global $wpdb;
$current_site->site_name = wp_cache_get( $current_site->id . ':site_name', 'site-options' );
if ( ! $current_site->site_name ) {
$current_site->site_name = $wpdb->get_var( $wpdb->prepare( "SELECT meta_value FROM $wpdb->sitemeta WHERE site_id = %d AND meta_key = 'site_name'", $current_site->id ) );
if ( ! $current_site->site_name )
$current_site->site_name = ucfirst( $current_site->domain );
wp_cache_set( $current_site->id . ':site_name', $current_site->site_name, 'site-options' );
}
return $current_site;
}
/**
* 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.
* @return object|bool Network object if successful. False when no network is found.
*/
function get_network_by_path( $domain, $path ) {
global $wpdb;
$network_id = false;
$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 ( '/' !== $path ) {
$paths = array( '/', $path );
} else {
$paths = array( '/' );
}
$search_domains = "'" . implode( "', '", $wpdb->_escape( $domains ) ) . "'";
$paths = "'" . implode( "', '", $wpdb->_escape( $paths ) ) . "'";
$networks = $wpdb->get_results( "SELECT id, domain, path FROM $wpdb->site
WHERE domain IN ($search_domains) AND path IN ($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 ( $network->path === $path ) {
$found = true;
break;
}
}
if ( $network->path === '/' ) {
$found = true;
break;
}
}
if ( $found ) {
$network = wp_get_network( $network );
return $network;
}
return false;
}
/**
* Retrieve an object containing information about the requested network.
*
* @since 3.9.0
*
* @param int $network_id The network's DB row or ID.
* @return mixed 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;
}
/**
* Sets current_site object.
*
* @access private
* @since 3.0.0
* @return object $current_site object
*/
function wpmu_current_site() {
global $wpdb, $current_site, $domain, $path;
if ( empty( $current_site ) )
$current_site = new stdClass;
// 1. If constants are defined, that's our network.
if ( defined( 'DOMAIN_CURRENT_SITE' ) && defined( 'PATH_CURRENT_SITE' ) ) {
$current_site->id = defined( 'SITE_ID_CURRENT_SITE' ) ? SITE_ID_CURRENT_SITE : 1;
$current_site->domain = DOMAIN_CURRENT_SITE;
$current_site->path = $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;
// 2. Pull the network from cache, if possible.
} elseif ( ! $current_site = wp_cache_get( 'current_site', 'site-options' ) ) {
// 3. See if they have only one network.
$networks = $wpdb->get_col( "SELECT id FROM $wpdb->site LIMIT 2" );
if ( count( $networks ) <= 1 ) {
$current_site = wp_get_network( $networks[0] );
$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 ) );
wp_cache_set( 'current_site', 'site-options' );
// 4. Multiple networks are in play. Determine which via domain and path.
} else {
// Find the first path segment.
$path = substr( $_SERVER['REQUEST_URI'], 0, 1 + strpos( $_SERVER['REQUEST_URI'], '/', 1 ) );
$current_site = get_network_by_path( $domain, $path );
// Option 1. We did not find anything.
if ( ! $current_site ) {
wp_load_translations_early();
wp_die( __( 'No site defined on this host. If you are the owner of this site, please check Debugging a WordPress Network for help.' ) );
}
}
}
// Option 2. We found something. Load up site meta and return.
wp_load_core_site_options();
$current_site = get_current_site_name( $current_site );
return $current_site;
}
/**
* 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 = '' . __( '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.' ), $wpdb->site ) . '
' . sprintf( __( 'Could not find site %1$s. Searched for table %2$s in database %3$s. Is that right?' ), rtrim( $domain . $path, '/' ), $wpdb->blogs, DB_NAME ) . '
' . __( '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:' ) . '