Laravel 5干预中的图像验证

感谢@maytham的评论,为我指明了正确的方向。

我发现的是,图像干预本身不会进行任何验证。所有图像验证都必须在传递给图像干预进行上传之前完成。感谢Laravel的内置验证器,如 image 和 mime 这使得图像验证非常容易。这就是我现在所拥有的,我首先验证文件输入,然后再将其传递给图像干预。

处理干预前验证程序检查 Image 类别:

 Route::post('/upload', function()
 {
    $postData = $request->only('file');
    $file = $postData['file'];

    // Build the input for validation
    $fileArray = array('image' => $file);

    // Tell the validator that this file should be an image
    $rules = array(
      'image' => 'mimes:jpeg,jpg,png,gif|required|max:10000' // max 10000kb
    );

    // Now pass the input and rules into the validator
    $validator = Validator::make($fileArray, $rules);

    // Check to see if validation fails or passes
    if ($validator->fails())
    {
          // Redirect or return json to frontend with a helpful message to inform the user 
          // that the provided file was not an adequate type
          return response()->json(['error' => $validator->errors()->getMessages()], 400);
    } else
    {
        // Store the File Now
        // read image from temporary file
        Image::make($file)->resize(300, 200)->save('foo.jpg');
    };
 });

希望这有帮助。

简单地,将其集成到以获得验证

$this->validate($request, ['file' => 'image|mimes:jpeg,png,jpg,gif,svg|max:2048',]);

图像支持的格式 http://image.intervention.io/getting_started/formats

可读图像格式取决于所选驱动程序(GD或 Imagick)和本地配置。默认干预图像 当前支持以下主要格式。

    JPEG PNG GIF TIF BMP ICO PSD WebP

GD----*

Imagick公司*

• 对于WebP支持,GD驱动程序必须与PHP 5一起使用>=5.5.0或PHP 7,以便使用imagewebp()。如果使用Imagick,则必须使用libwebp编译以支持WebP。

请参阅make方法的文档,了解如何从不同的源读取图像格式,分别编码和保存以了解如何输出图像。

注:( Intervention Image是一个开源的PHP图像处理和操作库 http://image.intervention.io/ ). 此库不验证任何验证规则,由Larval完成 验证程序类

Laravel文件 https://laravel.com/docs/5.7/validation

提示1: (请求验证)

$request->validate([
   'title' => 'required|unique:posts|max:255',
   'body' => 'required',
   'publish_at' => 'nullable|date',
]); 

// Retrieve the validated input data...
$validated = $request->validated(); //laravel 5.7

提示2: (控制器验证)

   $validator = Validator::make($request->all(), [
        'title' => 'required|unique:posts|max:255',
        'body' => 'required',
    ]);

    if ($validator->fails()) {
        return redirect('post/create')
                    ->withErrors($validator)
                    ->withInput();
    }

我有custum形式,这个变体不起作用。所以我使用了正则表达式验证

这样地:

  client_photo' => 'required|regex:/^data:image/'

可能会对某人有帮助

 public function store(Request $request)
    {
        $room = 1;
        if ($room == 1) {
            //image upload start
            if ($request->hasfile('photos')) {
                foreach ($request->file('photos') as $image) {
                    // dd($request->file('photos'));
                    $rand = mt_rand(100000, 999999);
                    $name = time() . "_"  . $rand . "." . $image->getClientOriginalExtension();
                    $name_thumb = time() . "_"  . $rand . "_thumb." . $image->getClientOriginalExtension();
                    //return response()->json(['a'=>storage_path() . '/app/public/postimages/'. $name]);
                    //move image to postimages folder
                    //dd('ok');
                    //  public_path().'/images/
                    $image->move(public_path() . '/postimages/', $name);
                    // 1280
                    $resizedImage = Image::make(public_path() . '/postimages/' . $name)->resize(300, null, function ($constraint) {
                        $constraint->aspectRatio();
                    });
             
                    // save file as jpg with medium quality
                    $resizedImage->save(public_path() . '/postimages/' . $name, 60);
                    // $resizedImage_thumb->save(public_path() . '/postimages/' . $name_thumb, 60);
                    $data[] = $name;
                   
                    //insert into picture table

                    $pic = new Photo();
                    $pic->name = $name;
                    $room->photos()->save($pic);
                }
            }
            return response()->json(['success' => true, 'message' => 'Room Created!!'], 200);
        } else {
            return response()->json(['success' => false, 'message' => 'Error!!']);
        }
    }
}