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<?php
/**
* Copyright © Magento, Inc. All rights reserved.
* See COPYING.txt for license details.
*/
namespace Magento\Captcha\Observer;
use Magento\Framework\Event\ObserverInterface;
use Magento\Framework\Exception\Plugin\AuthenticationException as PluginAuthenticationException;
class CheckUserLoginBackendObserver implements ObserverInterface
{
/**
* @var \Magento\Captcha\Helper\Data
*/
protected $_helper;
/**
* @var CaptchaStringResolver
*/
protected $captchaStringResolver;
/**
* @var \Magento\Framework\App\RequestInterface
*/
protected $_request;
/**
* @param \Magento\Captcha\Helper\Data $helper
* @param CaptchaStringResolver $captchaStringResolver
* @param \Magento\Framework\App\RequestInterface $request
*/
public function __construct(
\Magento\Captcha\Helper\Data $helper,
CaptchaStringResolver $captchaStringResolver,
\Magento\Framework\App\RequestInterface $request
) {
$this->_helper = $helper;
$this->captchaStringResolver = $captchaStringResolver;
$this->_request = $request;
}
/**
* Check Captcha On User Login Backend Page
*
* @param \Magento\Framework\Event\Observer $observer
* @throws \Magento\Framework\Exception\Plugin\AuthenticationException
* @return $this
*/
public function execute(\Magento\Framework\Event\Observer $observer)
{
$formId = 'backend_login';
$captchaModel = $this->_helper->getCaptcha($formId);
$login = $observer->getEvent()->getUsername();
if ($captchaModel->isRequired($login)
&& !$captchaModel->isCorrect($this->captchaStringResolver->resolve($this->_request, $formId))
) {
$captchaModel->logAttempt($login);
throw new PluginAuthenticationException(__('Incorrect CAPTCHA.'));
}
$captchaModel->logAttempt($login);
return $this;
}
}