/**
* Check request reCAPTCHA validity
* This method return `true` or `false` after validation, and set error in
* helper. If `true` error is set to null, otherwise `'incorrect-captcha-sol'`
*
* Example:
* {{{
* class YourController extends \lithium\action\Controller {
* public function index() {
* if ($this->request->data) {
* if (!Recaptcha::check($this->request)) {
* return;
* }
* }
* }
* }
* }}}
* @param object $request Pass request object to check method
* @return boolean
* @throws ConfigException
* @throws RuntimeException
*/
public static function check(\lithium\net\http\Request $request)
{
$config = Libraries::get('li3_recaptcha', 'keys');
if (!$config['private']) {
throw new ConfigException('To use reCAPTCHA you must get API key from' . 'https://www.google.com/recaptcha/admin/create');
}
if (!$request->env('SERVER_ADDR')) {
throw new RuntimeException('For security reasons, you must pass the remote ip to reCAPTCHA');
}
$data = array('privatekey' => $config['private'], 'remoteip' => $request->env('SERVER_ADDR'), 'challenge' => null, 'response' => null);
if ($request->data) {
$data['challenge'] = $request->data['recaptcha_challenge_field'];
$data['response'] = $request->data['recaptcha_response_field'];
}
if (!$data['challenge'] || !$data['response']) {
RecaptchaHelper::$error = 'incorrect-captcha-sol';
return false;
}
$service = Connections::get('recaptcha');
$serviceRespond = explode("\n", $service->post('/recaptcha/api/verify', $data));
if ($serviceRespond[0] == 'true') {
RecaptchaHelper::$error = null;
return true;
} else {
RecaptchaHelper::$error = 'incorrect-captcha-sol';
return false;
}
}
