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1 | <?php |
2 | /* | |
3 | +--------------------------------------------------------------------+ | |
7e9e8871 | 4 | | CiviCRM version 4.7 | |
6a488035 | 5 | +--------------------------------------------------------------------+ |
e7112fa7 | 6 | | Copyright CiviCRM LLC (c) 2004-2015 | |
6a488035 TO |
7 | +--------------------------------------------------------------------+ |
8 | | This file is a part of CiviCRM. | | |
9 | | | | |
10 | | CiviCRM is free software; you can copy, modify, and distribute it | | |
11 | | under the terms of the GNU Affero General Public License | | |
12 | | Version 3, 19 November 2007 and the CiviCRM Licensing Exception. | | |
13 | | | | |
14 | | CiviCRM is distributed in the hope that it will be useful, but | | |
15 | | WITHOUT ANY WARRANTY; without even the implied warranty of | | |
16 | | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. | | |
17 | | See the GNU Affero General Public License for more details. | | |
18 | | | | |
19 | | You should have received a copy of the GNU Affero General Public | | |
20 | | License and the CiviCRM Licensing Exception along | | |
21 | | with this program; if not, contact CiviCRM LLC | | |
22 | | at info[AT]civicrm[DOT]org. If you have questions about the | | |
23 | | GNU Affero General Public License or the licensing of CiviCRM, | | |
24 | | see the CiviCRM license FAQ at http://civicrm.org/licensing | | |
25 | +--------------------------------------------------------------------+ | |
d25dd0ee | 26 | */ |
6a488035 TO |
27 | |
28 | /** | |
29 | * | |
30 | * @package CRM | |
e7112fa7 | 31 | * @copyright CiviCRM LLC (c) 2004-2015 |
6a488035 TO |
32 | */ |
33 | class CRM_Utils_ReCAPTCHA { | |
34 | ||
35 | protected $_captcha = NULL; | |
36 | ||
37 | protected $_name = NULL; | |
38 | ||
39 | protected $_url = NULL; | |
40 | ||
41 | protected $_phrase = NULL; | |
42 | ||
43 | /** | |
44 | * We only need one instance of this object. So we use the singleton | |
45 | * pattern and cache the instance in this variable | |
46 | * | |
47 | * @var object | |
6a488035 TO |
48 | */ |
49 | static private $_singleton = NULL; | |
50 | ||
51 | /** | |
fe482240 | 52 | * Singleton function used to manage this object. |
6a488035 | 53 | * |
6a488035 TO |
54 | * |
55 | * @return object | |
6a488035 | 56 | */ |
00be9182 | 57 | public static function &singleton() { |
6a488035 TO |
58 | if (self::$_singleton === NULL) { |
59 | self::$_singleton = new CRM_Utils_ReCAPTCHA(); | |
60 | } | |
61 | return self::$_singleton; | |
62 | } | |
63 | ||
e7292422 | 64 | public function __construct() { |
50bfb460 | 65 | // Empty function? |
e7292422 | 66 | } |
6a488035 TO |
67 | |
68 | /** | |
fe482240 | 69 | * Add element to form. |
6a488035 | 70 | */ |
00be9182 | 71 | public static function add(&$form) { |
353ffa53 | 72 | $error = NULL; |
6a488035 TO |
73 | $config = CRM_Core_Config::singleton(); |
74 | $useSSL = FALSE; | |
481a74f4 | 75 | if (!function_exists('recaptcha_get_html')) { |
14e15f46 | 76 | require_once 'packages/recaptcha/recaptchalib.php'; |
d2485799 | 77 | } |
6a488035 TO |
78 | |
79 | // See if we are using SSL | |
80 | if (CRM_Utils_System::isSSL()) { | |
81 | $useSSL = TRUE; | |
82 | } | |
83 | $html = recaptcha_get_html($config->recaptchaPublicKey, $error, $useSSL); | |
84 | ||
85 | $form->assign('recaptchaHTML', $html); | |
86 | $form->assign('recaptchaOptions', $config->recaptchaOptions); | |
87 | $form->add( | |
88 | 'text', | |
3c275f0d WA |
89 | 'g-recaptcha-response', |
90 | 'reCaptcha', | |
6a488035 TO |
91 | NULL, |
92 | TRUE | |
93 | ); | |
6a488035 | 94 | $form->registerRule('recaptcha', 'callback', 'validate', 'CRM_Utils_ReCAPTCHA'); |
3c275f0d WA |
95 | if ($form->isSubmitted() && empty($form->_submitValues['g-recaptcha-response'])) { |
96 | $form->setElementError( | |
97 | 'g-recaptcha-response', | |
98 | ts('Input text must match the phrase in the image. Please review the image and re-enter matching text.') | |
99 | ); | |
100 | } | |
6a488035 | 101 | } |
96025800 | 102 | |
6a488035 | 103 | } |