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() {
$domain = preg_replace( '|https?://([^/]+)|', '$1', get_option( 'home' ) );
if ( parse_url( get_option( '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 is 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 WP_Error $errors
*/
function network_step1( $errors = false ) {
global $is_apache;
if ( defined( 'DO_NOT_UPGRADE_GLOBAL_TABLES' ) ) {
echo '' . __( 'Error:' ) . ' ' . sprintf(
/* translators: %s: DO_NOT_UPGRADE_GLOBAL_TABLES */
__( 'The constant %s cannot be defined when creating a network.' ),
'DO_NOT_UPGRADE_GLOBAL_TABLES'
) . '
' . __( 'Warning:' ) . ' ' . sprintf(
/* translators: %s: URL to Plugins screen. */
__( 'Please deactivate your plugins before enabling the Network feature.' ),
admin_url( 'plugins.php?plugin_status=active' )
) . '
' . __( 'Once the network is created, you may reactivate your plugins.' ) . '
';
echo '';
require_once ABSPATH . 'wp-admin/admin-footer.php';
die();
}
$hostname = get_clean_basedomain();
$has_ports = strstr( $hostname, ':' );
if ( ( false !== $has_ports && ! in_array( $has_ports, array( ':80', ':443' ), true ) ) ) {
echo '' . __( 'Error:' ) . ' ' . __( 'You cannot install a network of sites with your server address.' ) . '
' . sprintf(
/* translators: %s: Port number. */
__( 'You cannot use port numbers such as %s.' ),
'' . $has_ports . ''
) . '
';
echo '' . __( 'Return to Dashboard' ) . '';
echo '';
require_once ABSPATH . 'wp-admin/admin-footer.php';
die();
}
echo '
' . $errors->get_error_message() . '';
}
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 $wpdb->sitemeta WHERE site_id = 1 AND meta_key = 'subdomain_install'" );
?>
' . __( 'Caution:' ) . ' ';
printf(
/* translators: 1: wp-config.php, 2: .htaccess */
__( 'We recommend you back up your existing %1$s and %2$s files.' ),
'wp-config.php',
'.htaccess'
);
} elseif ( file_exists( $home_path . 'web.config' ) ) {
echo '' . __( 'Caution:' ) . ' ';
printf(
/* translators: 1: wp-config.php, 2: web.config */
__( 'We recommend you back up your existing %1$s and %2$s files.' ),
'wp-config.php',
'web.config'
);
} else {
echo '' . __( 'Caution:' ) . ' ';
printf(
/* translators: %s: wp-config.php */
__( 'We recommend you back up your existing %s file.' ),
'wp-config.php'
);
}
?>
above the line reading %3$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//branches//dist/wp-config-sample.php
*/
'/* ' . __( 'That’s all, stop editing! Happy publishing.' ) . ' */'
);
?>
'',
'SECURE_AUTH_KEY' => '',
'LOGGED_IN_KEY' => '',
'NONCE_KEY' => '',
'AUTH_SALT' => '',
'SECURE_AUTH_SALT' => '',
'LOGGED_IN_SALT' => '',
'NONCE_SALT' => '',
);
foreach ( $keys_salts as $c => $v ) {
if ( defined( $c ) ) {
unset( $keys_salts[ $c ] );
}
}
if ( ! empty( $keys_salts ) ) {
$keys_salts_str = '';
$from_api = wp_remote_get( 'https://api.wordpress.org/secret-key/1.1/salt/' );
if ( is_wp_error( $from_api ) ) {
foreach ( $keys_salts as $c => $v ) {
$keys_salts_str .= "\ndefine( '$c', '" . wp_generate_password( 64, true, true ) . "' );";
}
} else {
$from_api = explode( "\n", wp_remote_retrieve_body( $from_api ) );
foreach ( $keys_salts as $c => $v ) {
$keys_salts_str .= "\ndefine( '$c', '" . substr( array_shift( $from_api ), 28, 64 ) . "' );";
}
}
$num_keys_salts = count( $keys_salts );
?>
wp-config.php'
);
} else {
printf(
/* translators: %s: wp-config.php */
__( 'These unique authentication keys are also missing from your %s file.' ),
'wp-config.php'
);
}
?>
';
printf(
/* translators: 1: File name (.htaccess or web.config), 2: File path. */
__( 'Add the following to your %1$s file in %2$s, replacing other WordPress rules:' ),
'web.config',
'' . $home_path . ''
);
echo '
';
if ( ! $subdomain_install && WP_CONTENT_DIR !== ABSPATH . 'wp-content' ) {
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://wordpress.org/support/article/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 '
';
if ( ! $subdomain_install && WP_CONTENT_DIR !== ABSPATH . 'wp-content' ) {
echo '' . __( 'Warning:' ) . ' ' . __( 'Subdirectory networks may not be fully compatible with custom wp-content directories.' ) . '
';
}
?>