yii2-netdisk/controllers/ShareController.php

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<?php
namespace app\controllers;
use app\models\Share;
use app\models\ShareSearch;
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use RecursiveDirectoryIterator;
use RecursiveIteratorIterator;
use RuntimeException;
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use Yii;
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use yii\filters\AccessControl;
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use yii\web\Controller;
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use yii\web\ForbiddenHttpException;
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use yii\web\NotFoundHttpException;
use yii\filters\VerbFilter;
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use yii\web\Request;
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use yii\web\Response;
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use ZipArchive;
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/**
* ShareController implements the CRUD actions for Share model.
*/
class ShareController extends Controller
{
/**
* @inheritDoc
*/
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public function behaviors(): array
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{
return array_merge(
parent::behaviors(),
[
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'access' => [
'class' => AccessControl::class,
'rules' => [
[
'allow' => true,
'actions' => ['index', 'view', 'create', 'update', 'delete'],
'roles' => ['user'],
],
[
'allow' => true,
'actions' => ['access', 'download'],
'roles' => ['?', '@'], // everyone can access public share
]
],
],
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'verbs' => [
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'class' => VerbFilter::class,
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'actions' => [
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'index' => ['GET'],
'view' => ['GET'],
'create' => ['POST'],
'update' => ['GET', 'POST'],
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'delete' => ['POST'],
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'access' => ['GET', 'POST'],
'download' => ['GET'],
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],
],
]
);
}
/**
* Lists all Share models.
*
* @return string
*/
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public function actionIndex(): string
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{
$searchModel = new ShareSearch();
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if ($this->request instanceof Request) {
$dataProvider = $searchModel->search($this->request->queryParams);
$dataProvider->query->andWhere(['!=', 'status', 0]);
return $this->render('index', [
'searchModel' => $searchModel,
'dataProvider' => $dataProvider,
]);
} else {
throw new RuntimeException('Invalid request type');
}
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}
/**
* Displays a single Share model.
* @param int $share_id Share ID
* @return string
* @throws NotFoundHttpException if the model cannot be found
*/
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public function actionView(int $share_id): string
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{
return $this->render('view', [
'model' => $this->findModel($share_id),
]);
}
/**
* Creates a new Share model.
* If creation is successful, the browser will be redirected to the 'view' page.
* @return string|Response
*/
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public function actionCreate(): Response|string
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{
$model = new Share();
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if ($this->request instanceof Request && $this->request->isPost) {
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if ($model->load($this->request->post())) {
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//对access_code进行检测
if (empty($model->access_code) || !preg_match('/^[a-zA-Z0-9]{4}$/', $model->access_code)) {
Yii::$app->session->setFlash('error', '访问密码必须是4位字母和数字的组合');
return $this->render('create', ['model' => $model]);
}
//对file_relative_path进行检测
$absolutePath = Yii::getAlias(Yii::$app->params['dataDirectory']) . '/' . Yii::$app->user->id . '/' . $model->file_relative_path;
if (!file_exists($absolutePath)) {
Yii::$app->session->setFlash('error', '文件或文件夹不存在');
return $this->render('create', ['model' => $model]);
}
$model->access_code = strtolower($model->access_code);
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$model->sharer_id = Yii::$app->user->id; // 自动设置 sharer_id 为当前用户的 ID
if ($model->save()) {
return $this->redirect(['view', 'share_id' => $model->share_id]);
}
}
}
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// 看看就好不给用get的
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return $this->render('create', [
'model' => $model,
]);
}
/**
* Updates an existing Share model.
* If update is successful, the browser will be redirected to the 'view' page.
* @param int $share_id Share ID
* @return string|Response
* @throws NotFoundHttpException if the model cannot be found
*/
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public function actionUpdate(int $share_id): Response|string
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{
$model = $this->findModel($share_id);
$model->scenario = Share::SCENARIO_UPDATE; // 设置模型为 'update' 场景
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if ($this->request instanceof Request && $this->request->isPost) {
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$postData = $this->request->post();
if (isset($postData['Share']['access_code'])) { // 只加载 'access_code' 字段
$model->access_code = $postData['Share']['access_code'];
if ($model->save()) {
return $this->redirect(['view', 'share_id' => $model->share_id]);
}
}
}
return $this->render('update', [
'model' => $model,
]);
}
/**
* Deletes an existing Share model.
* If deletion is successful, the browser will be redirected to the 'index' page.
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* : 不是真的删除
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* @param int $share_id Share ID
* @return Response
* @throws NotFoundHttpException if the model cannot be found
*/
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public function actionDelete(int $share_id): Response
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{
// 获取模型
$model = $this->findModel($share_id);
// 设置状态为禁用
$model->status = 0;
// 保存模型
if ($model->save()) {
Yii::$app->session->setFlash('success', 'Share delete successfully.');
} else {
Yii::$app->session->setFlash('error', 'Failed to delete share.');
}
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return $this->redirect(['index']);
}
/**
* Finds the Share model based on its primary key value.
* If the model is not found, a 404 HTTP exception will be thrown.
* @param int $share_id Share ID
* @return Share the loaded model
* @throws NotFoundHttpException if the model cannot be found
*/
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protected function findModel(int $share_id, bool $is_public = false): Share
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{
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// Not Allow to access other user's share manage page
// public share can be accessed by anyone
if (($model = Share::findOne(['share_id' => $share_id])) !== null && ($is_public || $model->sharer_id == Yii::$app->user->id)) {
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return $model;
}
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throw new NotFoundHttpException('没有权限访问这个页面或请求的页面不存在');
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}
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/**
* 分享的公开访问点
* @param $share_id
* @param $access_code
* @return string
* @throws NotFoundHttpException
*/
public function actionAccess($share_id, $access_code = null): string
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{
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$model = $this->findModel($share_id, true);
//检查文件/文件夹是否存在
$abp = Yii::getAlias(Yii::$app->params['dataDirectory']) . '/' . $model->sharer_id . '/' . $model->file_relative_path;
if (!file_exists($abp) || $model->status == 0) {
throw new NotFoundHttpException('分享失效,文件或文件夹不存在');
}
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if ($this->request instanceof Request && $this->request->isPost) {
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$access_code = $this->request->post('Share')['access_code'];
if ($access_code === $model->access_code) {
// 访问密码正确,显示文件信息和下载按钮
$access_granted = Yii::$app->session->get('access_granted', []);
$access_granted[$share_id] = true;
Yii::$app->session->set('access_granted', $access_granted); // 将访问权限信息存储到 session 中
$absolutePath = Yii::getAlias(Yii::$app->params['dataDirectory']) . '/' . $model->sharer_id . '/' . $model->file_relative_path;
$isDirectory = is_dir($absolutePath);
$sharerUsername = $model->getSharerUsername();
return $this->render('_file_info', [
'model' => $model,
'isDirectory' => $isDirectory,
'sharerUsername' => $sharerUsername,
]);
} else {
Yii::$app->session->setFlash('error', '访问密码错误');
}
}
$model1 = new Share();
$model1->access_code = $access_code;
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return $this->render('access', [
'model' => $model1,
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]);
}
/**
* @throws ForbiddenHttpException
* @throws NotFoundHttpException
*/
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public function actionDownload($share_id): Response|\yii\console\Response
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{
$access_granted = Yii::$app->session->get('access_granted', []);
if (!isset($access_granted[$share_id]) || !$access_granted[$share_id]) {
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throw new ForbiddenHttpException('你没有权限下载这个文件');
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}
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$model = $this->findModel($share_id, true);
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$absolutePath = Yii::getAlias(Yii::$app->params['dataDirectory']) . '/' . $model->sharer_id . '/' . $model->file_relative_path;
if (is_file($absolutePath)) {
return Yii::$app->response->sendFile($absolutePath);
} else if (is_dir($absolutePath)) {
// 如果是文件夹,压缩后发送
$zipPath = $absolutePath . '.zip';
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$zip = new ZipArchive();
$zip->open($zipPath, ZipArchive::CREATE | ZipArchive::OVERWRITE);
$files = new RecursiveIteratorIterator(new RecursiveDirectoryIterator($absolutePath));
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foreach ($files as $file) {
if (!$file->isDir()) {
$filePath = $file->getRealPath();
$relativePath = substr($filePath, strlen($absolutePath) + 1);
$zip->addFile($filePath, $relativePath);
}
}
$zip->close();
return Yii::$app->response->sendFile($zipPath);
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} else {
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throw new NotFoundHttpException('异常,文件不存在');
}
}
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}