recaptcha.php

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<?php
defined('XOOPS_ROOT_PATH') or die('Restricted access');

class XoopsCaptchaRecaptcha extends XoopsCaptchaMethod
{
    function isActive()
    {
        return true;
    }

    function render()
    {
        require_once dirname(__FILE__) . '/recaptcha/recaptchalib.php';
        $form = "<script type=\"text/javascript\">
            var RecaptchaOptions = {
            theme : '" . $this->config['theme']."',
            lang : '" . $this->config['lang']."'
            };
            </script>";
        $form .= recaptcha_get_html($this->config['public_key']);
        return $form;
    }

    function verify($sessionName)
    {
        $is_valid = false;
        require_once dirname(__FILE__) . '/recaptcha/recaptchalib.php';
        if (!empty($_POST['recaptcha_response_field'])) {
            $resp = recaptcha_check_answer(
                $this->config['private_key'],
                $_SERVER['REMOTE_ADDR'],
                $_POST['recaptcha_challenge_field'],
                $_POST['recaptcha_response_field']
            );
            if (!$resp->is_valid) {
              $this->message[] = $resp->error;
            } else {
              $is_valid = true;
            }
        }
        return $is_valid;
    }
}
?>