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