103 lines
3.3 KiB
PHP
103 lines
3.3 KiB
PHP
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<?php
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/*
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+--------------------------------------------------------------------+
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| CiviCRM version 4.7 |
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+--------------------------------------------------------------------+
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| Copyright CiviCRM LLC (c) 2004-2017 |
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+--------------------------------------------------------------------+
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| This file is a part of CiviCRM. |
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| CiviCRM is free software; you can copy, modify, and distribute it |
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| under the terms of the GNU Affero General Public License |
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| Version 3, 19 November 2007 and the CiviCRM Licensing Exception. |
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| CiviCRM is distributed in the hope that it will be useful, but |
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| WITHOUT ANY WARRANTY; without even the implied warranty of |
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| MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. |
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| See the GNU Affero General Public License for more details. |
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| You should have received a copy of the GNU Affero General Public |
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| License and the CiviCRM Licensing Exception along |
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| with this program; if not, contact CiviCRM LLC |
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| at info[AT]civicrm[DOT]org. If you have questions about the |
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| GNU Affero General Public License or the licensing of CiviCRM, |
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| see the CiviCRM license FAQ at http://civicrm.org/licensing |
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+--------------------------------------------------------------------+
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*/
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/**
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*
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* @package CRM
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* @copyright CiviCRM LLC (c) 2004-2017
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*/
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class CRM_Utils_ReCAPTCHA {
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protected $_captcha = NULL;
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protected $_name = NULL;
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protected $_url = NULL;
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protected $_phrase = NULL;
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/**
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* Singleton.
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*
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* We only need one instance of this object. So we use the singleton
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* pattern and cache the instance in this variable
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*
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* @var CRM_Utils_ReCAPTCHA
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*/
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static private $_singleton = NULL;
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/**
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* Singleton function used to manage this object.
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*
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* @return object
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*/
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public static function &singleton() {
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if (self::$_singleton === NULL) {
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self::$_singleton = new CRM_Utils_ReCAPTCHA();
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}
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return self::$_singleton;
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}
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/**
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* Add element to form.
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*
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* @param CRM_Core_Form $form
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*/
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public static function add(&$form) {
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$error = NULL;
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$config = CRM_Core_Config::singleton();
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$useSSL = FALSE;
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if (!function_exists('recaptcha_get_html')) {
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require_once 'packages/recaptcha/recaptchalib.php';
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}
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// See if we are using SSL
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if (CRM_Utils_System::isSSL()) {
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$useSSL = TRUE;
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}
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$html = recaptcha_get_html($config->recaptchaPublicKey, $error, $useSSL);
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$form->assign('recaptchaHTML', $html);
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$form->assign('recaptchaOptions', $config->recaptchaOptions);
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$form->add(
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'text',
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'g-recaptcha-response',
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'reCaptcha',
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NULL,
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TRUE
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);
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$form->registerRule('recaptcha', 'callback', 'validate', 'CRM_Utils_ReCAPTCHA');
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if ($form->isSubmitted() && empty($form->_submitValues['g-recaptcha-response'])) {
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$form->setElementError(
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'g-recaptcha-response',
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ts('Please go back and complete the CAPTCHA at the bottom of this form.')
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);
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}
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}
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}
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