258 lines
9.8 KiB
PHP
258 lines
9.8 KiB
PHP
<?php
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namespace app\controllers;
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use app\models\RenameForm;
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use app\utils\FileTypeDetector;
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use Yii;
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use yii\filters\VerbFilter;
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use yii\helpers\ArrayHelper;
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use yii\web\Controller;
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use yii\web\NotFoundHttpException;
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use yii\web\Response;
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class HomeController extends Controller
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{
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protected string $pattern = '/^[^\p{C}\/:*?"<>|\\\\]+$/u';
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public function behaviors()
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{
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return array_merge(
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parent::behaviors(),
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[
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'verbs' => [
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'class' => VerbFilter::class,
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'actions' => [
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'index' => ['GET'],
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'download' => ['GET'],
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'rename' => ['POST'],
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'delete' => ['POST'],
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],
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],
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]
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);
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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 === '.' || $directory == null) {
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$directory = null;
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$parentDirectory = null;
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} elseif ($directory === '..' || str_contains($directory, '../')) {
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throw new NotFoundHttpException('Invalid directory.');
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} else {
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$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($absolutePath);
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$lastModified = filemtime($absolutePath);
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$size = is_file($absolutePath) ? filesize($absolutePath) : null;
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$directoryContents[$key] = ['name' => $item, 'type' => $type, 'lastModified' => $lastModified, 'size' => $size];
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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($path);
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// 移除 '.' 和 '..'
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$directoryContents = array_diff($directoryContents, ['.', '..']);
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// 使用 usort 对目录内容进行排序，使文件夹始终在文件之前
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usort($directoryContents, function ($a, $b) use ($path) {
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$aIsDir = is_dir($path . '/' . $a);
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$bIsDir = is_dir($path . '/' . $b);
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if ($aIsDir === $bIsDir) {
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return strnatcasecmp($a, $b); // 如果两者都是文件夹或都是文件，按名称排序
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}
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return $aIsDir ? -1 : 1; // 文件夹始终在文件之前
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});
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return $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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* 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($this->pattern, $relativePath) || $relativePath === '.' || $relativePath === '..' || str_contains($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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* 重命名文件或文件夹
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* @return string|Response|null
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* @throws NotFoundHttpException 如果文件或文件夹不存在
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*/
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public function actionRename()
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{
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$relativePath = Yii::$app->request->post('relativePath');
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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($this->pattern, $relativePath) || $relativePath === '.' || $relativePath === '..' || str_contains($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 . '/' . $relativePath;
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// 检查文件或文件夹是否存在
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if (!file_exists($absolutePath)) {
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throw new NotFoundHttpException('File or directory not found.');
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}
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$model = new RenameForm();
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$model->newName = ArrayHelper::getValue(Yii::$app->request->post('RenameForm'), 'newName');
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if (!$model->validate()) {
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Yii::$app->response->statusCode = 400;
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return $model->getFirstError('newName');
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}
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// 检查新名称是否和现有的文件或文件夹重名
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if (file_exists(dirname($absolutePath) . '/' . $model->newName)) {
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Yii::$app->session->setFlash('error', 'Failed to rename file or directory.');
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return $this->redirect(['index', 'directory' => dirname($relativePath)]);
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}
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// 重命名文件或文件夹
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if (!rename($absolutePath, dirname($absolutePath) . '/' . $model->newName)) {
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Yii::$app->session->setFlash('error', 'Failed to rename file or directory.');
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} else {
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Yii::$app->session->setFlash('success', 'File or directory renamed successfully.');
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}
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return $this->redirect(['index', 'directory' => dirname($relativePath)]);
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}
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/**
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* 删除文件或文件夹
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* @throws NotFoundHttpException 如果文件或文件夹不存在
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*/
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public function actionDelete()
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{
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$relativePath = Yii::$app->request->post('relativePath');
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$relativePath = rawurldecode($relativePath);
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if (!preg_match($this->pattern, $relativePath) || $relativePath === '.' || $relativePath === '..' || str_contains($relativePath, '../')) {
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throw new NotFoundHttpException('Invalid file path.');
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}
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$absolutePath = Yii::getAlias(Yii::$app->params['dataDirectory']) . '/' . Yii::$app->user->id . '/' . $relativePath;
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if (!file_exists($absolutePath)) {
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throw new NotFoundHttpException('File or directory not found.');
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} else {
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$realPath = realpath($absolutePath);
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$expectedPathPrefix = realpath(Yii::getAlias(Yii::$app->params['dataDirectory']) . '/' . Yii::$app->user->id);
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if (!str_starts_with($realPath, $expectedPathPrefix)) {
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throw new NotFoundHttpException('File or directory not found.');
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}
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}
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if (is_dir($absolutePath)) {
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if (!$this->deleteDirectory($absolutePath)) {
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Yii::$app->session->setFlash('error', 'Failed to delete directory.');
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} else {
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Yii::$app->session->setFlash('success', 'Directory deleted successfully.');
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}
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} else {
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if (!unlink($absolutePath)) {
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Yii::$app->session->setFlash('error', 'Failed to delete file.');
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} else {
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Yii::$app->session->setFlash('success', 'File deleted successfully.');
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}
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}
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return $this->redirect(['index', 'directory' => dirname($relativePath)]);
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}
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/**
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* 递归删除目录及其内容
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* @param string $dir 目录路径
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*/
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protected function deleteDirectory($dir): bool
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{
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if (!is_dir($dir)) {
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return false;
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}
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$files = array_diff(scandir($dir), ['.', '..']);
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foreach ($files as $file) {
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if (is_dir("$dir/$file")) {
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if (!$this->deleteDirectory("$dir/$file")) {
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return false;
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}
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} else {
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if (!unlink("$dir/$file")) {
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return false;
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}
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}
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}
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if (!rmdir($dir)) {
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return false;
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}
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return true;
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}
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}
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