File lass/captcha/recaptcha.php

 1: <?php
 2: 
 3: use Xmf\Request;
 4: 
 5: /**
 6:  * CAPTCHA for Recaptcha mode
 7:  *
 8:  * You may not change or alter any portion of this comment or credits
 9:  * of supporting developers from this source code or any supporting source code
10:  * which is considered copyrighted (c) material of the original comment or credit authors.
11:  * This program is distributed in the hope that it will be useful,
12:  * but WITHOUT ANY WARRANTY; without even the implied warranty of
13:  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
14:  *
15:  * @copyright       (c) 2000-2016 XOOPS Project (www.xoops.org)
16:  * @license             GNU GPL 2 (http://www.gnu.org/licenses/gpl-2.0.html)
17:  * @package             class
18:  * @subpackage          CAPTCHA
19:  * @since               2.5.2
20:  * @author              trabis <lusopoemas@gmail.com>
21:  */
22: 
23: defined('XOOPS_ROOT_PATH') || exit('Restricted access');
24: 
25: /**
26:  * Class XoopsCaptchaRecaptcha
27:  */
28: class XoopsCaptchaRecaptcha extends XoopsCaptchaMethod
29: {
30:     /**
31:      * XoopsCaptchaRecaptcha::isActive()
32:      *
33:      * @return bool
34:      */
35:     public function isActive()
36:     {
37:         return true;
38:     }
39: 
40:     /**
41:      * XoopsCaptchaRecaptcha::render()
42:      *
43:      * @return string
44:      */
45:     public function render()
46:     {
47:         trigger_error("recaptcha is outdated , use recaptcha_2 in \class\captcha\config.php", E_USER_WARNING);
48:         require_once __DIR__ . '/recaptcha/recaptchalib.php';
49:         $form = "<script type=\"text/javascript\">
50:             var RecaptchaOptions = {
51:             theme : '" . $this->config['theme'] . "',
52:             lang : '" . $this->config['lang'] . "'
53:             };
54:             </script>";
55:         $form .= recaptcha_get_html($this->config['public_key']);
56: 
57:         return $form;
58:     }
59: 
60:     /**
61:      * XoopsCaptchaRecaptcha::verify()
62:      *
63:      * @param mixed|null $sessionName
64:      *
65:      * @return bool
66:      */
67:     public function verify($sessionName = null)
68:     {
69:         $is_valid = false;
70:         require_once __DIR__ . '/recaptcha/recaptchalib.php';
71:         if (!empty(Request::getString('recaptcha_response_field', '', 'POST'))) {
72:             $resp = recaptcha_check_answer($this->config['private_key'], $_SERVER['REMOTE_ADDR'], Request::getString('recaptcha_challenge_field', '', 'POST'), Request::getString('recaptcha_response_field', '', 'POST'));
73:             if (!$resp->is_valid) {
74:                 $this->message[] = $resp->error;
75:             } else {
76:                 $is_valid = true;
77:             }
78:         }
79: 
80:         return $is_valid;
81:     }
82: }
83:
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