<?php
/**
* Multisite upgrade administration panel.
*
* @package WordPress
* @subpackage Multisite
* @since 3.0.0
*/
/** Load WordPress Administration Bootstrap */
require_once __DIR__ . '/admin.php';
require_once ABSPATH . WPINC . '/http.php';
$title = __( 'Upgrade Network' );
$parent_file = 'upgrade.php';
get_current_screen()->add_help_tab(
array(
'id' => 'overview',
'title' => __( 'Overview' ),
'content' =>
'<p>' . __( 'Only use this screen once you have updated to a new version of WordPress through Updates/Available Updates (via the Network Administration navigation menu or the Toolbar). Clicking the Upgrade Network button will step through each site in the network, five at a time, and make sure any database updates are applied.' ) . '</p>' .
'<p>' . __( 'If a version update to core has not happened, clicking this button won’t affect anything.' ) . '</p>' .
'<p>' . __( 'If this process fails for any reason, users logging in to their sites will force the same update.' ) . '</p>',
)
);
get_current_screen()->set_help_sidebar(
'<p><strong>' . __( 'For more information:' ) . '</strong></p>' .
'<p>' . __( '<a href="https://wordpress.org/support/article/network-admin-updates-screen/">Documentation on Upgrade Network</a>' ) . '</p>' .
'<p>' . __( '<a href="https://wordpress.org/support/">Support</a>' ) . '</p>'
);
require_once ABSPATH . 'wp-admin/admin-header.php';
if ( ! current_user_can( 'upgrade_network' ) ) {
wp_die( __( 'Sorry, you are not allowed to access this page.' ), 403 );
}
echo '<div class="wrap">';
echo '<h1>' . __( 'Upgrade Network' ) . '</h1>';
$action = isset( $_GET['action'] ) ? $_GET['action'] : 'show';
switch ( $action ) {
case 'upgrade':
$n = ( isset( $_GET['n'] ) ) ? (int) $_GET['n'] : 0;
if ( $n < 5 ) {
/**
* @global int $wp_db_version WordPress database version.
*/
global $wp_db_version;
update_site_option( 'wpmu_upgrade_site', $wp_db_version );
}
$site_ids = get_sites(
array(
'spam' => 0,
'deleted' => 0,
'archived' => 0,
'network_id' => get_current_network_id(),
'number' => 5,
'offset' => $n,
'fields' => 'ids',
'order' => 'DESC',
'orderby' => 'id',
'update_site_meta_cache' => false,
)
);
if ( empty( $site_ids ) ) {
echo '<p>' . __( 'All done!' ) . '</p>';
break;
}
echo '<ul>';
foreach ( (array) $site_ids as $site_id ) {
switch_to_blog( $site_id );
$siteurl = site_url();
$upgrade_url = admin_url( 'upgrade.php?step=upgrade_db' );
restore_current_blog();
echo "<li>$siteurl</li>";
$response = wp_remote_get(
$upgrade_url,
array(
'timeout' => 120,
'httpversion' => '1.1',
'sslverify' => false,
)
);
if ( is_wp_error( $response ) ) {
wp_die(
sprintf(
/* translators: 1: Site URL, 2: Server error message. */
__( 'Warning! Problem updating %1$s. Your server may not be able to connect to sites running on it. Error message: %2$s' ),
$siteurl,
'<em>' . $response->get_error_message() . '</em>'
)
);
}
/**
* Fires after the Multisite DB upgrade for each site is complete.
*
* @since MU (3.0.0)
*
* @param array|WP_Error $response The upgrade response array or WP_Error on failure.
*/
do_action( 'after_mu_upgrade', $response );
/**
* Fires after each site has been upgraded.
*
* @since MU (3.0.0)
*
* @param int $site_id The Site ID.
*/
do_action( 'wpmu_upgrade_site', $site_id );
}
echo '</ul>';
?><p><?php _e( 'If your browser doesn’t start loading the next page automatically, click this link:' ); ?> <a class="button" href="upgrade.php?action=upgrade&n=<?php echo ( $n + 5 ); ?>"><?php _e( 'Next Sites' ); ?></a></p>
<script type="text/javascript">
<!--
function nextpage() {
location.href = "upgrade.php?action=upgrade&n=<?php echo ( $n + 5 ); ?>";
}
setTimeout( "nextpage()", 250 );
//-->
</script>
<?php
break;
case 'show':
default:
if ( (int) get_site_option( 'wpmu_upgrade_site' ) !== $GLOBALS['wp_db_version'] ) :
?>
<h2><?php _e( 'Database Update Required' ); ?></h2>
<p><?php _e( 'WordPress has been updated! Before we send you on your way, we need to individually upgrade the sites in your network.' ); ?></p>
<?php endif; ?>
<p><?php _e( 'The database update process may take a little while, so please be patient.' ); ?></p>
<p><a class="button button-primary" href="upgrade.php?action=upgrade"><?php _e( 'Upgrade Network' ); ?></a></p>
<?php
/**
* Fires before the footer on the network upgrade screen.
*
* @since MU (3.0.0)
*/
do_action( 'wpmu_upgrade_page' );
break;
}
?>
</div>
<?php require_once ABSPATH . 'wp-admin/admin-footer.php'; ?>