[Resolved] How to restrict a frase or domain in Cred post form

[Author]

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[Tiit Sau]

I'm trying to improve spam proof of public forms.
reCaptcha V2 is weak and reCaptcha V3 still not working with Tootset.
Now i try to sort out most spammers by unwanted content inserted to inputs.

[Minesh Supporter Languages: English (English ) Timezone: Asia/Kolkata (GMT+05:30)]

Hello. Thank you for contacting the Toolset support.

You can validate the form input using the Toolset form's hook: cred_form_validate
=> https://toolset.com/documentation/programmer-reference/cred-api/#cred_form_validate

Does that helps?

[Tiit Sau]

Hi Minesh!

I believe it helps, but can you give me a sample code for case where:
wpcf-e-mail input value contain 'mail.ru' - echo error.

[Minesh Supporter Languages: English (English ) Timezone: Asia/Kolkata (GMT+05:30)]

What if you try to use the following code.

Add it to "Custom Code" section offered by Toolset:
=> https://toolset.com/documentation/programmer-reference/adding-custom-code/using-toolset-to-add-custom-code/

function email_domain_validation($email){
  if (!preg_match('/^([a-z0-9\+\_\-\.]+)@([a-z0-9\+\_\-\.]{2,})(\.[a-z]{2,4})$/i', $email)) return false;
 
  $domains = array('mail.ru');
  list(, $email_domain) = explode('@', $email, 2);
  return in_array($email_domain, $domains);
}
add_filter('cred_form_validate','func_email_validation',10,2);
function func_email_validation($error_fields, $form_data){
    list($fields,$errors)=$error_fields;
    
     if ($form_data['id']==99999){
  
           $is_valid_email_domain =  email_domain_validation($_POST['wpcf-e-mail']);
           if(!$is_valid_email_domain)  {
                $errors['wpcf-e-mail']='This E-mail domain is not allowed.';
           }
     }
    return array($fields,$errors);
}

Where:
- Replace 99999 with your original form ID.

[Tiit Sau]

I managed to set it up in functions.php.

Thanks!

[Tiit Sau]

My issue is resolved now. Thank you!