user->isGuest) { return $this->redirect(Yii::$app->user->loginUrl); } $rootDataDirectory = Yii::getAlias(Yii::$app->params['dataDirectory']); $userId = Yii::$app->user->id; if ($directory == null | $directory == '.') { $parentDirectory = null; } else { $parentDirectory = dirname($directory); } $directoryContents = $this->getDirectoryContents(join(DIRECTORY_SEPARATOR, [$rootDataDirectory, $userId, $directory ?: '.'])); foreach ($directoryContents as $key => $item) { $relativePath = $directory ? $directory . '/' . $item : $item; $absolutePath = Yii::getAlias('@app') . '/data/' . Yii::$app->user->id . '/' . $relativePath; $type = FileTypeDetector::detect($absolutePath); $directoryContents[$key] = ['name' => $item, 'type' => $type]; } return $this->render('index', [ 'directoryContents' => $directoryContents, 'parentDirectory' => $parentDirectory, 'directory' => $directory, // 将$directory传递给视图 ]); } /** * 获取指定路径下的文件和文件夹内容 * @param string $path 路径 * @return array 文件和文件夹内容数组 * @throws NotFoundHttpException 如果路径不存在 */ protected function getDirectoryContents($path) { // 确定路径是否存在 if (!is_dir($path)) { throw new NotFoundHttpException('Directory not found.'); } // 获取路径下的所有文件和文件夹 $directoryContents = scandir($path); return array_diff($directoryContents, ['.', '..']); } /** * 下载指定路径下的文件 * must be provided with a relative path of the file * download link:https://devs.chenx221.cyou:8081/index.php?r=home%2Fdownload&relativePath={the relative path of the file} * * @param string $relativePath 文件的相对路径 * @throws NotFoundHttpException 如果文件不存在 */ public function actionDownload($relativePath) { // 对相对路径进行解码 $relativePath = rawurldecode($relativePath); // 检查相对路径是否只包含允许的字符 if (!preg_match('/^[\w\-.\/]+$/u', $relativePath)) { throw new NotFoundHttpException('Invalid file path.'); } // 确定文件的绝对路径 $absolutePath = Yii::getAlias(Yii::$app->params['dataDirectory']) . '/' . Yii::$app->user->id . '/' . $relativePath; // 使用realpath函数解析路径,并检查解析后的路径是否在预期的目录中 $realPath = realpath($absolutePath); $dataDirectory = str_replace('/', '\\', Yii::getAlias(Yii::$app->params['dataDirectory'])); if (!$realPath || !str_starts_with($realPath, $dataDirectory)) { throw new NotFoundHttpException('File not found.'); } // 检查文件是否存在 if (!file_exists($realPath)) { throw new NotFoundHttpException('File not found.'); } // 将文件发送给用户进行下载 Yii::$app->response->sendFile($realPath)->send(); } }