<?php
require_once __DIR__ . '/../lib/auth.php';
require_admin();

$file = basename($_GET['file'] ?? '');
if ($file === '') { http_response_code(400); echo 'Ungültige Anfrage.'; exit; }

$path = dirname(__DIR__) . '/uploads/' . $file;
if (!is_file($path)) { http_response_code(404); echo 'Datei nicht gefunden.'; exit; }

$display = $_GET['name'] ?? $file;
$safe_display = addslashes($display);
$safe_encoded = rawurlencode($display);

header('Content-Type: application/octet-stream');
header('Content-Disposition: attachment; filename="' . $safe_display . '"; filename*=UTF-8\'\'' . $safe_encoded);
header('Content-Length: ' . filesize($path));
header('X-Content-Type-Options: nosniff');
header('Cache-Control: private, no-store');
readfile($path);
exit;
