$success = switch_maintenance_mode(true, 'all', T_('System backup is in progress. Please reload this page in a few minutes.'));
// Make sure we exit the maintenance mode if PHP dies
register_shutdown_function('switch_maintenance_mode', false, '', true);
break;
case 'open':
// Don't lock the site
break;
default:
debug_die('Invalid system lock type received!');
break;
}
if ($success) {
// We can start backup
set_max_execution_time(1800);
// 30 minutes
$current_Backup->start_backup();
}
// Unlock b2evolution
switch ($lock_type) {
case 'maintenance_lock':
// Disable maintenance lock
switch_maintenance_lock(false);
break;
case 'maintenance_mode':
// Disable maintenance mode
switch_maintenance_mode(false, 'all');
break;
default:
// Nothing to do because the b2evoltuion was not locked
break;
}
evo_flush();
$read_only_list = array();
// Get a folder path where we should get the files
$upgrade_folder_path = get_upgrade_folder_path($upgrade_name);
$success = verify_overwrite($upgrade_folder_path, no_trailing_slash($basepath), 'Verifying', false, $read_only_list);
if ($success && empty($read_only_list)) {
// We can backup files and database
// Load Backup class (PHP4) and backup all of the folders and files
load_class('maintenance/model/_backup.class.php', 'Backup');
$Backup = new Backup();
$Backup->include_all();
if (!function_exists('gzopen')) {
$Backup->pack_backup_files = false;
}
// Start backup
if ($success = $Backup->start_backup()) {
// We can upgrade files and database
// Copying new folders and files
echo '<h4>' . T_('Copying new folders and files...') . '</h4>';
evo_flush();
$success = verify_overwrite($upgrade_folder_path, no_trailing_slash($basepath), 'Copying', true, $read_only_list);
if (!$success || !empty($read_only_list)) {
// In case if something was changed before the previous verify_overwrite check
echo '<p style="color:red"><strong>' . T_('The files and database backup was created successfully but all folders and files could not be overwritten');
if (empty($read_only_list)) {
// There was some error in the verify_overwrite() function, but the corresponding error message was already displayed.
echo '.</strong></p>';
} else {
// Some file/folder could not be overwritten, display it
echo ':</strong></p>';
foreach ($read_only_list as $read_only_file) {
