Upload file check extension

Question

Upload file check extension

Reza Jan '17

Created Jan '17	Last Reply Jan '17	Replies 4	Views 1450	Votes 0

Reza 2.7k

Jan '17

Hi ..... my code not validate file extension and all test upload say "Field file must not be empty"

Model :


use Phalcon\Validation;
use Phalcon\Validation\Validator\Digit as DigitValidator;
use Phalcon\Validation\Validator\File as FileValidator;

    class Post extends \Phalcon\Mvc\Model
     {

      public function validation()
      {
          $validator  = new Validation();

          $validator->add('title', new DigitValidator([
              'message' => ':field must be numeric'
          ]));

          $validator->add('file', new FileValidator([
              'maxSize' => '2M',
              'messageSize' => ':field exceeds the max filesize (:max)',
              'allowedTypes' => array('image/jpeg', 'image/png'),
              'messageType' => 'Allowed file types are :types',
              'maxResolution' => '800x600',
              'messageMaxResolution' => 'Max resolution of :field is :max'
          ]));

          return $this->validate($validator);
      }
    }

    Controller :

    if ($this->request->hasFiles()) {
             foreach ($this->request->getUploadedFiles() as $file) {
                 $file->moveTo(
                      "files/" . (new Random())->uuid() . "." . $file->getExtension()
                     );
                 /*if ($this->imageCheck($file->getRealType())) {
                        $file->moveTo(
                            "files/" . (new Random())->base64Safe() . "." . $file->getExtension()
                       );
                   }else {
                         throw new Exception("Invalid Extension", 1);
                   }*/
                 }    
            }

Michał Talar
6.0k

Accepted
answer

Jan '17

Thanks, I'm not so good at validation in models but this code should check your extension of uploaded file:

<?php
$ext = $file->getRealType(); 
$white_list_ext = array("image/jpeg", "image/png", "image/jpg", "image/bmp", "image/svg+xml");
        if (in_array($ext, $white_list_ext))
            {
                //continue
            }
        else
            {
                //bad ext
            }