prepare( 'SHOW TABLES LIKE %s', $wpdb->esc_like( $wpdb->site ) );
if ( $wpdb->get_var( $sql ) ) {
return $wpdb->get_var( "SELECT domain FROM $wpdb->site ORDER BY id ASC LIMIT 1" );
}
return false;
}
/**
* Allow subdomain installation
*
* @since 3.0.0
* @return bool Whether subdomain installation is allowed
*/
function allow_subdomain_install() {
$home = get_option( 'home' );
$domain = parse_url( $home, PHP_URL_HOST );
if ( parse_url( $home, PHP_URL_PATH ) || 'localhost' === $domain || preg_match( '|^[0-9]+\.[0-9]+\.[0-9]+\.[0-9]+$|', $domain ) ) {
return false;
}
return true;
}
/**
* Allow subdirectory installation.
*
* @since 3.0.0
*
* @global wpdb $wpdb WordPress database abstraction object.
*
* @return bool Whether subdirectory installation is allowed
*/
function allow_subdirectory_install() {
global $wpdb;
/**
* Filters whether to enable the subdirectory installation feature in Multisite.
*
* @since 3.0.0
*
* @param bool $allow Whether to enable the subdirectory installation feature in Multisite.
* Default false.
*/
if ( apply_filters( 'allow_subdirectory_install', false ) ) {
return true;
}
if ( defined( 'ALLOW_SUBDIRECTORY_INSTALL' ) && ALLOW_SUBDIRECTORY_INSTALL ) {
return true;
}
$post = $wpdb->get_row( "SELECT ID FROM $wpdb->posts WHERE post_date < DATE_SUB(NOW(), INTERVAL 1 MONTH) AND post_status = 'publish'" );
if ( empty( $post ) ) {
return true;
}
return false;
}
/**
* Get base domain of network.
*
* @since 3.0.0
* @return string Base domain.
*/
function get_clean_basedomain() {
$existing_domain = network_domain_check();
if ( $existing_domain ) {
return $existing_domain;
}
$domain = preg_replace( '|https?://|', '', get_option( 'siteurl' ) );
$slash = strpos( $domain, '/' );
if ( $slash ) {
$domain = substr( $domain, 0, $slash );
}
return $domain;
}
/**
* Prints step 1 for Network installation process.
*
* @todo Realistically, step 1 should be a welcome screen explaining what a Network is and such.
* Navigating to Tools > Network should not be a sudden "Welcome to a new install process!
* Fill this out and click here." See also contextual help todo.
*
* @since 3.0.0
*
* @global bool $is_apache
*
* @param false|WP_Error $errors Optional. Error object. Default false.
*/
function network_step1( $errors = false ) {
global $is_apache;
if ( defined( 'DO_NOT_UPGRADE_GLOBAL_TABLES' ) ) {
$cannot_define_constant_message = '' . __( 'Error:' ) . ' ';
$cannot_define_constant_message .= sprintf(
/* translators: %s: DO_NOT_UPGRADE_GLOBAL_TABLES */
__( 'The constant %s cannot be defined when creating a network.' ),
'DO_NOT_UPGRADE_GLOBAL_TABLES
'
);
wp_admin_notice(
$cannot_define_constant_message,
array(
'additional_classes' => array( 'error' ),
)
);
echo '';
require_once ABSPATH . 'wp-admin/admin-footer.php';
die();
}
$active_plugins = get_option( 'active_plugins' );
if ( ! empty( $active_plugins ) ) {
wp_admin_notice(
'' . __( 'Warning:' ) . ' ' . sprintf(
/* translators: %s: URL to Plugins screen. */
__( 'Please deactivate your plugins before enabling the Network feature.' ),
admin_url( 'plugins.php?plugin_status=active' )
),
array( 'type' => 'warning' )
);
echo '
' . __( 'Once the network is created, you may reactivate your plugins.' ) . '
'; echo ''; require_once ABSPATH . 'wp-admin/admin-footer.php'; die(); } // Strip standard port from hostname. $hostname = preg_replace( '/(?::80|:443)$/', '', get_clean_basedomain() ); echo ' get_error_message(), array( 'additional_classes' => array( 'error' ), ) ); } if ( $_POST ) { if ( allow_subdomain_install() ) { $subdomain_install = allow_subdirectory_install() ? ! empty( $_POST['subdomain_install'] ) : true; } else { $subdomain_install = false; } } else { if ( is_multisite() ) { $subdomain_install = is_subdomain_install(); ?> get_var( "SELECT meta_value FROM $wpdb->sitemeta WHERE site_id = 1 AND meta_key = 'subdomain_install'" ); wp_admin_notice( '' . __( 'Warning:' ) . ' ' . __( 'An existing WordPress network was detected.' ), array( 'additional_classes' => array( 'error' ), ) ); ?> ' . __( 'Caution:' ) . ' '; $notice_args = array( 'type' => 'warning', 'additional_classes' => array( 'inline' ), ); if ( file_exists( $home_path . '.htaccess' ) ) { $notice_message .= sprintf( /* translators: 1: wp-config.php, 2: .htaccess */ __( 'You should back up your existing %1$s and %2$s files.' ), 'wp-config.php
',
'.htaccess
'
);
} elseif ( file_exists( $home_path . 'web.config' ) ) {
$notice_message .= sprintf(
/* translators: 1: wp-config.php, 2: web.config */
__( 'You should back up your existing %1$s and %2$s files.' ),
'wp-config.php
',
'web.config
'
);
} else {
$notice_message .= sprintf(
/* translators: %s: wp-config.php */
__( 'You should back up your existing %s file.' ),
'wp-config.php
'
);
}
wp_admin_notice( $notice_message, $notice_args );
}
?>
above the line reading %3$s:' ),
'wp-config.php
',
'' . $location_of_wp_config . '
',
/*
* translators: This string should only be translated if wp-config-sample.php is localized.
* You can check the localized release package or
* https://i18n.svn.wordpress.org//* ' . __( 'That’s all, stop editing! Happy publishing.' ) . ' */
'
);
?>
wp-config.php'
);
} else {
printf(
/* translators: %s: wp-config.php */
__( 'These unique authentication keys are also missing from your %s file.' ),
'wp-config.php
'
);
}
?>
';
printf(
/* translators: 1: File name (.htaccess or web.config), 2: File path. */
__( 'Add the following to your %1$s file in %2$s, replacing other WordPress rules:' ),
'web.config
',
'' . $home_path . '
'
);
echo '
' . __( 'Warning:' ) . ' ' . __( 'Subdirectory networks may not be fully compatible with custom wp-content directories.' ) . '
'; } ?>'; printf( /* translators: %s: Documentation URL. */ __( 'It seems your network is running with Nginx web server. Learn more about further configuration.' ), __( 'https://developer.wordpress.org/advanced-administration/server/web-server/nginx/' ) ); echo '
'; else : // End $is_nginx. Construct an .htaccess file instead: $ms_files_rewriting = ''; if ( is_multisite() && get_site_option( 'ms_files_rewriting' ) ) { $ms_files_rewriting = "\n# uploaded files\nRewriteRule ^"; $ms_files_rewriting .= $subdir_match . "files/(.+) {$rewrite_base}" . WPINC . "/ms-files.php?file={$subdir_replacement_12} [L]" . "\n"; } $htaccess_file = <<';
printf(
/* translators: 1: File name (.htaccess or web.config), 2: File path. */
__( 'Add the following to your %1$s file in %2$s, replacing other WordPress rules:' ),
'.htaccess
',
'' . $home_path . '
'
);
echo '
' . __( 'Warning:' ) . ' ' . __( 'Subdirectory networks may not be fully compatible with custom wp-content directories.' ) . '
'; } ?>