Source: view.php
⬇️ Tải file Trang chính 
<?php
require __DIR__.'/s3helper.php';
$cfg=s3_load_config();

$prefix = s3_norm_prefix($_GET['prefix'] ?? '');
$max    = (int)($_GET['max'] ?? 1000);
$r = s3_list($cfg, $cfg['bucket'], $prefix, '/', $max);

$folders=[]; $files=[]; $err='';
if($r['ok']){
  $xml=@simplexml_load_string($r['body']);
  if($xml){
    foreach($xml->CommonPrefixes as $p){ $folders[] = (string)$p->Prefix; }
    foreach($xml->Contents as $c){
      $key=(string)$c->Key;
      if ($key === $prefix) continue; // bỏ object “thư mục” rỗng chính nó
      $files[]=[
        'Key'=>$key,
        'Size'=>(int)$c->Size,
        'Time'=>date('Y-m-d H:i:s', strtotime((string)$c->LastModified)),
      ];
    }
  } else $err='Không đọc được XML trả về.';
}else $err="HTTP {$r['http_code']} — ".strip_tags($r['body']);

function parent_prefix(string $p): string {
    if($p==='') return '';
    $t=rtrim($p,'/'); $pos=strrpos($t,'/'); 
    return $pos===false? '' : substr($t,0,$pos+1);
}
$up = parent_prefix($prefix);
?>
<!doctype html><html><head><meta charset="utf-8"><title>View Bucket</title>
<style>
body{font-family:Inter,Arial;background:#f9fafb;margin:0;padding:20px}
.panel{max-width:1000px;margin:auto;background:#fff;padding:20px;border-radius:12px;box-shadow:0 2px 10px rgba(0,0,0,.08)}
h2{margin:0 0 6px}
a.btn{display:inline-block;background:#2563eb;color:#fff;padding:6px 10px;border-radius:6px;text-decoration:none}
a.btn:hover{background:#1e40af}
.list{margin:10px 0} .item{padding:8px 10px;border:1px solid #e5e7eb;border-radius:8px;margin:6px 0;background:#fafafa;display:flex;justify-content:space-between;align-items:center}
.meta{color:#6b7280;font-size:13px} .err{padding:10px;border-radius:8px;background:#fee2e2;color:#991b1b}
</style>
</head><body>
<div class="panel">
  <h2>📂 Duyệt bucket: <?=htmlspecialchars($cfg['bucket'])?></h2>
  <p class="meta">Prefix hiện tại: <code><?=htmlspecialchars($prefix?:'(root)')?></code></p>
  <p>
    <a class="btn" href="view.php?prefix=">🏠 Root</a>
    <?php if($prefix!==''): ?>
      <a class="btn" href="view.php?prefix=<?=urlencode($up)?>">⬆️ Lùi lên</a>
    <?php endif; ?>
    <a class="btn" href="index.php">Trang chính</a>
    <a class="btn" href="view_source.php?file=view.php" style="background:#6b7280">Source</a>
  </p>

  <?php if($err): ?><div class="err"><?=htmlspecialchars($err)?></div><?php endif; ?>

  <h3>📁 Thư mục</h3>
  <div class="list">
    <?php if(!$folders): ?><div class="meta">(Không có thư mục)</div><?php endif; ?>
    <?php foreach($folders as $fo): ?>
      <div class="item">
        <div>📁 <a href="view.php?prefix=<?=urlencode($fo)?>"><?=htmlspecialchars(basename(rtrim($fo,'/')))?></a>
          <span class="meta"> (<?=htmlspecialchars($fo)?>)</span>
        </div>
        <form method="post" action="delete.php" onsubmit="return confirm('Xoá cả thư mục này?');">
          <input type="hidden" name="target" value="<?=htmlspecialchars($fo)?>">
          <input type="hidden" name="is_folder" value="1">
          <button class="btn" style="background:#b91c1c">Xoá thư mục</button>
        </form>
      </div>
    <?php endforeach; ?>
  </div>

  <h3>🗃️ File</h3>
  <div class="list">
    <?php if(!$files): ?><div class="meta">(Không có file)</div><?php endif; ?>
    <?php foreach($files as $f): ?>
      <div class="item">
        <div>
          📄 <strong><?=htmlspecialchars(basename($f['Key']))?></strong>
          <div class="meta"><?=number_format($f['Size']/1024,2)?> KB · <?=$f['Time']?></div>
        </div>
        <div>
          <a class="btn" href="get.php?key=<?=urlencode($f['Key'])?>" target="_blank">Tải</a>
          <a class="btn" href="head.php?key=<?=urlencode($f['Key'])?>" target="_blank" style="background:#0ea5a4">Info</a>
          <form method="post" action="delete.php" style="display:inline" onsubmit="return confirm('Xoá file này?');">
            <input type="hidden" name="target" value="<?=htmlspecialchars($f['Key'])?>">
            <button class="btn" style="background:#b91c1c">Xoá</button>
          </form>
        </div>
      </div>
    <?php endforeach; ?>
  </div>
</div>
</body></html>