README

Requirements

• CakePHP 3.4.0+

Installation

composer require mosaxiv/cakephp-invisible-recaptcha

obtain a invisible reCAPTCHA API key.

SetUp

Configure

With the following test keys, you will always get No CAPTCHA and all verification requests will pass.
Please do not use these keys for your production traffic.

Configure::write('recaptcha', [
    'sitekey' => '6LeIxAcTAAAAAJcZVRqyHh71UMIEGNQ_MXjiZKhI',
    'secretkey' => '6LeIxAcTAAAAAGG-vFI1TnRWxMZNFuojJ4WifJWe',
]);

loadComponent

$this->loadComponent('InvisibleReCaptcha.InvisibleReCaptcha',
    [
        // options
    ]);

Some of the options available:

docs https://developers.google.com/recaptcha/docs/invisible#config

Used

Display recaptcha in your view

<?php
echo $this->Form->create();
echo $this->Form->control('email');
echo $this->Form->submit();
echo $this->InvisibleReCaptcha->render();
echo $this->Form->end();
?>

Verify in your controller

if ($this->InvisibleReCaptcha->verify()) {
    //do something
}

use ServerRequest::clientIp to get the IP address.
See https://book.cakephp.org/3.0/en/controllers/request-response.html#trusting-proxy-headers