File lass/captcha/recaptcha2.php

  1: <?php
  2: /*
  3:  You may not change or alter any portion of this comment or credits
  4:  of supporting developers from this source code or any supporting source code
  5:  which is considered copyrighted (c) material of the original comment or credit authors.
  6: 
  7:  This program is distributed in the hope that it will be useful,
  8:  but WITHOUT ANY WARRANTY; without even the implied warranty of
  9:  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
 10:  */
 11: 
 12: use Xmf\Request;
 13: use Xmf\IPAddress;
 14: 
 15: /**
 16:  * CAPTCHA for Recaptcha mode
 17:  *
 18:  * @package     class
 19:  * @subpackage  CAPTCHA
 20:  * @author      Grégory Mage
 21:  * @copyright   2016 XOOPS Project (http://xoops.org)
 22:  * @license     GNU GPL 2 or later (http://www.gnu.org/licenses/gpl-2.0.html)
 23:  * @link        http://xoops.org
 24:  */
 25: 
 26: defined('XOOPS_ROOT_PATH') || exit('Restricted access');
 27: 
 28: /**
 29:  * Class XoopsCaptchaRecaptcha2
 30:  */
 31: class XoopsCaptchaRecaptcha2 extends XoopsCaptchaMethod
 32: {
 33:     /**
 34:      * XoopsCaptchaRecaptcha2::isActive()
 35:      *
 36:      * @return bool
 37:      */
 38:     public function isActive()
 39:     {
 40:         return true;
 41:     }
 42: 
 43:     /**
 44:      * XoopsCaptchaRecaptcha2::render()
 45:      *
 46:      * @return string
 47:      */
 48:     public function render()
 49:     {
 50:         $form = '<script src="https://www.google.com/recaptcha/api.js"></script>';
 51:         $form .= '<div class="form-group"><div class="g-recaptcha" data-sitekey="'
 52:             . $this->config['website_key'] . '"></div></div>';
 53:         return $form;
 54:     }
 55: 
 56:     /**
 57:      * XoopsCaptchaRecaptcha2::verify()
 58:      *
 59:      * @param string|null $sessionName unused for recaptcha
 60:      *
 61:      * @return bool
 62:      */
 63:     public function verify($sessionName = null)
 64:     {
 65:         $isValid = false;
 66:         $recaptchaResponse = Request::getString('g-recaptcha-response', '');
 67:         $recaptchaVerifyURL = 'https://www.google.com/recaptcha/api/siteverify?secret=' . $this->config['secret_key']
 68:             . '&response=' .  $recaptchaResponse . '&remoteip=' . IPAddress::fromRequest()->asReadable();
 69:         $usedCurl = false;
 70:         if (function_exists('curl_init') && false !== ($curlHandle  = curl_init())) {
 71:             curl_setopt($curlHandle, CURLOPT_URL, $recaptchaVerifyURL);
 72:             curl_setopt($curlHandle, CURLOPT_FAILONERROR, true);
 73:             curl_setopt($curlHandle, CURLOPT_RETURNTRANSFER, 1);
 74:             curl_setopt($curlHandle, CURLOPT_CONNECTTIMEOUT, 5);
 75:             $curlReturn = curl_exec($curlHandle);
 76:             if (false === $curlReturn) {
 77:                 trigger_error(curl_error($curlHandle));
 78:             } else {
 79:                 $usedCurl = true;
 80:                 $recaptchaCheck = json_decode($curlReturn, true);
 81:             }
 82:             curl_close($curlHandle);
 83:         }
 84:         if (false === $usedCurl) {
 85:             $recaptchaCheck = file_get_contents($recaptchaVerifyURL);
 86:             $recaptchaCheck = json_decode($recaptchaCheck, true);
 87:         }
 88:         if (isset($recaptchaCheck['success']) && $recaptchaCheck['success'] === true) {
 89:             $isValid = true;
 90:         } else {
 91:             /** @var \XoopsCaptcha $captchaInstance */
 92:             $captchaInstance = \XoopsCaptcha::getInstance();
 93:             /** @var array $recaptchaCheck */
 94:             foreach ($recaptchaCheck['error-codes'] as $msg) {
 95:                 $captchaInstance->message[] = $msg;
 96:             }
 97:         }
 98: 
 99:         return $isValid;
100:     }
101: }
102:
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