How tu use recaptcha google with phalcon framework - php

Question

I'm still trying to add a recaptcha to my website, I want try the recaptcha from Google but I can't use it properly. Checked or not, my email is still sent.
I tried to understand the code of How to validate Google reCaptcha v2 using phalcon/volt forms?.
But i don't understand where are my problems and more over how can you create an element like
$recaptcha = new Check('recaptcha');
My controller implementation :
<?php
/**
* ContactController
*
* Allows to contact the staff using a contact form
*/
class ContactController extends ControllerBase
{
public function initialize()
{
$this->tag->setTitle('Contact');
parent::initialize();
}
public function indexAction()
{
$this->view->form = new ContactForm;
}
/**
* Saves the contact information in the database
*/
public function sendAction()
{
if ($this->request->isPost() != true) {
return $this->forward('contact/index');
}
$form = new ContactForm;
$contact = new Contact();
// Validate the form
$data = $this->request->getPost();
if (!$form->isValid($data, $contact)) {
foreach ($form->getMessages() as $message) {
$this->flash->error($message);
}
return $this->forward('contact/index');
}
if ($contact->save() == false) {
foreach ($contact->getMessages() as $message) {
$this->flash->error($message);
}
return $this->forward('contact/index');
}
$this->flash->success('Merci, nous vous contacterons très rapidement');
return $this->forward('index/index');
}
}
In my view i added :
<div class="g-recaptcha" data-sitekey="mypublickey0123456789"></div>
{{ form.messages('recaptcha') }}
But my problem is after : i create a new validator for the recaptcha like in How to validate Google reCaptcha v2 using phalcon/volt forms? :
use \Phalcon\Validation\Validator;
use \Phalcon\Validation\ValidatorInterface;
use \Phalcon\Validation\Message;
class RecaptchaValidator extends Validator implements ValidatorInterface
{
public function validate(\Phalcon\Validation $validation, $attribute)
{
if (!$this->isValid($validation)) {
$message = $this->getOption('message');
if ($message) {
$validation->appendMessage(new Message($message, $attribute, 'Recaptcha'));
}
return false;
}
return true;
}
public function isValid($validation)
{
try {
$value = $validation->getValue('g-recaptcha-response');
$ip = $validation->request->getClientAddress();
$url = $config->'https://www.google.com/recaptcha/api/siteverify'
$data = ['secret' => $config->mysecretkey123456789
'response' => $value,
'remoteip' => $ip,
];
// Prepare POST request
$options = [
'http' => [
'header' => "Content-type: application/x-www-form-urlencoded\r\n",
'method' => 'POST',
'content' => http_build_query($data),
],
];
// Make POST request and evaluate the response
$context = stream_context_create($options);
$result = file_get_contents($url, false, $context);
return json_decode($result)->success;
}
catch (Exception $e) {
return null;
}
}
}
So i don't know if tjis code is correct anyway, i have a problem too after that : how to create an object "recaptcha" in my form add
$recaptcha = new ?????('recaptcha');
$recaptcha->addValidator(new RecaptchaValidator([
'message' => 'Please confirm that you are human'
]));
$this->add($recaptcha);
PS: I apologize because i'm a noob here and my mother tongue is not english, so if you don't understand me or want give me some advices to create a proper question, don't hesitate ^^

Answer 1

I've made a custom form element for recaptcha. Used it for many projects so far.
The form element class:
class Recaptcha extends \Phalcon\Forms\Element
{
public function render($attributes = null)
{
$html = '<script src="https://www.google.com/recaptcha/api.js?hl=en"></script>';
$html.= '<div class="g-recaptcha" data-sitekey="YOUR_PUBLIC_KEY"></div>';
return $html;
}
}
The recaptcha validator class:
use Phalcon\Validation\Validator;
use Phalcon\Validation\ValidatorInterface;
use Phalcon\Validation\Message;
class RecaptchaValidator extends Validator implements ValidatorInterface
{
public function validate(\Phalcon\Validation $validation, $attribute)
{
$value = $validation->getValue('g-recaptcha-response');
$ip = $validation->request->getClientAddress();
if (!$this->verify($value, $ip)) {
$validation->appendMessage(new Message($this->getOption('message'), $attribute, 'Recaptcha'));
return false;
}
return true;
}
protected function verify($value, $ip)
{
$params = [
'secret' => 'YOUR_PRIVATE_KEY',
'response' => $value,
'remoteip' => $ip
];
$response = json_decode(file_get_contents('https://www.google.com/recaptcha/api/siteverify?' . http_build_query($params)));
return (bool)$response->success;
}
}
Using in your form class:
$recaptcha = new Recaptcha($name);
$recaptcha->addValidator(new RecaptchaValidator([
'message' => 'YOUR_RECAPTCHA_ERROR_MESSAGE'
]));
Note 1: You were almost there, you just missed to create custom form element (the first and last code piece from my example);
Note 2: Also there is a library in Github: https://github.com/fizzka/phalcon-recaptcha I have not used it, but few peeps at phalcon forum recommended it.