Validating Botdetect recaptcha in Symfony 4 Without using an entity

Question

Is there any way to validate a BotDetect recaptcha in the symfony form builder?

I have the below form, which lets a user enter their email.:

     $form = $this->createFormBuilder()
        ->add('email', EmailType::class,[
            'label' => false,
            'attr' => [
                'style' => 'text-align:center;',
                'value' => $email,
            ]
        ])
        ->add('captchaCode', CaptchaType::class, array(
            'captchaConfig' => 'ExampleCaptcha'
        ))
        ->add('Do some shiz wif my email bruh.', SubmitType::class)
        ->getForm();

    $form->handleRequest($request);

    if ($form->isSubmitted() && $form->isValid()) {
        return $this->redirect('/unblock/'.$email);
    }

The problem with this, is their documentation specifies a validation constraint in an Entity. My application does not have any entities (yet), but I would like to know if anyone has found a way to validate the captcha from the controller?

I'm fine with adding it to my entities when I create them , but I'm wondering how this would be done on an application that doesn't have any entities, or connection to a database.

score 0 · Accepted Answer · answered Feb 28 '19 at 04:30

I ended up using the beelabs google recaptcha bundle from packagist (If anyone is interested) at the link: https://packagist.org/packages/beelab/recaptcha2-bundle

Their documentation tells you pretty much everything you need to know about installation and setup.

The one drawback is that it still lets the form submit even though you havent clicked the I am not a robot checkbox, so you would need to validate whether it's been clicked on the PHP end.

You can use this to get the response, which is usually either a hash, or an empty field.

$recaptcha = $request->get('g-recaptcha-response', '');

score -1 · Answer 2 · answered Feb 20 '20 at 21:30

use Captcha\Bundle\CaptchaBundle\Validator\Constraints\ValidCaptcha;

    $form = $this->createFormBuilder()
     ->add('captchaCode', CaptchaType::class, [
                    'captchaConfig' => 'LoginCaptcha',
                    'constraints' => [
                        new ValidCaptcha([
                            'message' => 'CAPTCHA validation failed, try again.'
                        ])
                    ]
                ]);

Validating Botdetect recaptcha in Symfony 4 Without using an entity

2 Answers2