<?php
require __DIR__.'/s3helper.php';
$cfg=s3_load_config();
$key=ltrim((string)($_GET['key']??''),'/');
if($key===''){
?><!doctype html><html><head><meta charset="utf-8"><title>Head</title>
<style>body{font-family:Inter,Arial;background:#fafafa;padding:20px}input,button{padding:8px;margin:6px}</style></head>
<body><h2>ℹ️ Metadata 1 file</h2>
<form method="get"><input name="key" placeholder="vd: images/2025/photo.jpg" style="width:360px" required> <button>Xem</button></form>
<p><a href="index.php">← Trang chính</a> • <a href="view_source.php?file=head.php" target="_blank">Source</a></p></body></html>
<?php exit; }
$r=s3_send_request($cfg,'HEAD',$cfg['bucket'],$key,[],[],null);
?><!doctype html><html><head><meta charset="utf-8"><title>Head Result</title>
<style>body{font-family:Inter,Arial;background:#fafafa;padding:20px}pre{background:#111827;color:#e5e7eb;padding:12px;border-radius:8px;overflow:auto}</style></head>
<body>
<h2>ℹ️ HEAD: <?=htmlspecialchars($key)?></h2>
<p>HTTP: <?=$r['http_code']?></p>
<pre><?=htmlspecialchars(print_r($r['headers'],true))?></pre>
<p><a href="index.php">← Trang chính</a></p>
</body></html>