Проверка каптчи.

 
class p_captcha extends cmsPlugin {
 
 public $config = array(
 'pubkey'  => '',
 'privkey' => ''
 );
 
    public function __construct() {
 
        global $_LANG;
 
        // Информация о плагине
        $this->info['plugin']      = 'p_captcha';
        $this->info['title']       = $_LANG['P_CAPTCHA_TITLE'];
        $this->info['description'] = $_LANG['P_CAPTCHA_DESCRIPTION'];
        $this->info['author']      = 'InstantCMS Team';
        $this->info['version']     = '1.0';
        $this->info['published']   = 1;
        $this->info['plugin_type'] = 'captcha';
 
        $this->events[] = 'GET_CAPTCHA';
        $this->events[] = 'CHECK_CAPTCHA';
 
 
 
        parent::__construct();
 
    }
 
    /**
     * Обработка событий
     * @param string $event
     * @param array $item
     * @return html
     */
    public function execute($event='', $item=array()){
 
        switch ($event){
            case 'GET_CAPTCHA':   return $this->getCaptcha();
            case 'CHECK_CAPTCHA': return $this->checkCaptcha();
        }
 
        return;
 
    }
 
 
    /**
     * Возвращает код каптчи
     * @return html
     */
    public function getCaptcha() {
 
        global $_LANG;
        $pubkey = $this->config['pubkey'];
			if ($pubkey == null || $pubkey == '') {
		cmsCore::addSessionMessage($_LANG['ERROR_CAPTCHA'], 'error'); $errors = true;
	}
        ob_start();
 
        cmsPage::initTemplate('plugins','p_captcha.tpl')->
                        assign('pubkey', $pubkey)->
                        display('p_captcha.tpl');
 
        return ob_get_clean();
 
    }
 
    /**
     * Проверяет код каптчи
     */
    public function checkCaptcha() {
 
    $privkey = $this->config['privkey'];
	$response ='g-recaptcha-response';
	$url = 'https://www.google.com/recaptcha/api/siteverify?secret=' . $privkey . '&response=' . $response;
 
	if ($privkey == null || $privkey == '') {
	cmsCore::addSessionMessage($_LANG['ERROR_CAPTCHA'], 'error'); $errors = true;
 
	}
 
	$val = $this->getGooglePage($url);
 
  return json_decode($val)->success;
    }
 
	public  function  getGooglePage($url) {
    $ch = curl_init();
    curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, FALSE);
    curl_setopt($ch, CURLOPT_HEADER, false);
    curl_setopt($ch, CURLOPT_FOLLOWLOCATION, true);
    curl_setopt($ch, CURLOPT_URL, $url);
    curl_setopt($ch, CURLOPT_REFERER, $url);
    curl_setopt($ch, CURLOPT_RETURNTRANSFER, TRUE);
    $result = curl_exec($ch);
    curl_close($ch);
    return $result;
}
 
}