netconfig/ajax/export.php

<?php
declare(strict_types=1);
include('../../../inc/includes.php');

header("Content-Type: application/octet-stream");
header("Pragma: no-cache");
Html::header_nocache();

$id = (int)($_GET['id'] ?? 0);
if (!$id || !\PluginNetconfig\Config::canView()) {
    http_response_code(403);
    exit('Access denied');
}

$config = new \PluginNetconfig\Config();
if (!$config->getFromDB($id)) {
    http_response_code(404);
    exit('Configuration not found');
}

$content = $config->getDecryptedContent();

// Opzionale: mascheramento credenziali
$content = preg_replace('/(?<=password\s|secret\s|enable\s)[^\s\r\n]+/i', '***REDACTED***', $content);

header('Content-Disposition: attachment; filename="netconfig_' . $id . '_' . date('Ymd_His') . '.txt"');
echo $content;
exit;