You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
104 lines
3.0 KiB
104 lines
3.0 KiB
<?php
|
|
|
|
// (c) Copyright by authors of the Tiki Wiki CMS Groupware Project
|
|
//
|
|
// All Rights Reserved. See copyright.txt for details and a complete list of authors.
|
|
// Licensed under the GNU LESSER GENERAL PUBLIC LICENSE. See license.txt for details.
|
|
// $Id$
|
|
class Captcha_ReCaptcha20 extends Laminas\Captcha\ReCaptcha
|
|
{
|
|
protected $_RESPONSE = 'g-recaptcha-response';
|
|
|
|
/**
|
|
* Validate captcha
|
|
*
|
|
* @see Zend_Validate_Interface::isValid()
|
|
* @param mixed $value
|
|
* @param array|null $context
|
|
* @return boolean
|
|
*/
|
|
public function isValid($value, $context = null)
|
|
{
|
|
if (! is_array($value) && ! is_array($context)) {
|
|
$this->error(self::MISSING_VALUE);
|
|
return false;
|
|
}
|
|
|
|
if (empty($value[$this->_RESPONSE])) {
|
|
$this->error(self::MISSING_VALUE);
|
|
return false;
|
|
}
|
|
|
|
if (! extension_loaded('curl')) {
|
|
$this->error('reCAPTCHA 2 requires the PHP CURL extension');
|
|
return false;
|
|
}
|
|
|
|
// Google request was cached
|
|
if (in_array($value[$this->_RESPONSE], $_SESSION['recaptcha_cache'])) {
|
|
return true;
|
|
}
|
|
|
|
//set POST variables
|
|
$url = 'https://www.google.com/recaptcha/api/siteverify';
|
|
$fields = [
|
|
'secret' => urlencode($this->getPrivkey()),
|
|
'response' => urlencode($value[$this->_RESPONSE]),
|
|
'remoteip' => urlencode($_SERVER['REMOTE_ADDR']),
|
|
];
|
|
|
|
$fields_string = '';
|
|
foreach ($fields as $k => $v) {
|
|
$fields_string .= $k . '=' . $v . '&';
|
|
}
|
|
rtrim($fields_string, '&');
|
|
$ch = curl_init();
|
|
curl_setopt($ch, CURLOPT_URL, $url);
|
|
curl_setopt($ch, CURLOPT_POST, 1);
|
|
curl_setopt($ch, CURLOPT_POSTFIELDS, $fields_string);
|
|
curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);
|
|
$result = @json_decode(curl_exec($ch), true);
|
|
|
|
if (! is_array($result)) {
|
|
$this->error(self::ERR_CAPTCHA);
|
|
return false;
|
|
}
|
|
|
|
if ($result['success'] == false) {
|
|
$this->error(self::BAD_CAPTCHA);
|
|
return false;
|
|
}
|
|
|
|
// Cache google respnonse to avoid second resubmission on ajax form
|
|
$_SESSION['recaptcha_cache'][] = $value[$this->_RESPONSE];
|
|
|
|
return true;
|
|
}
|
|
|
|
/**
|
|
* Render captcha
|
|
*
|
|
* @return string
|
|
*/
|
|
public function render()
|
|
{
|
|
TikiLib::lib('header')->add_css('.g-recaptcha-response {display:none !important;}');
|
|
return '<div class="g-recaptcha" data-sitekey="' . $this->getPubkey() . '" id="antibotcode"></div>';
|
|
}
|
|
|
|
/**
|
|
* Render captcha though Ajax
|
|
*
|
|
* @return string
|
|
*/
|
|
public function renderAjax()
|
|
{
|
|
static $id = 1;
|
|
TikiLib::lib('header')->add_js("
|
|
grecaptcha.render('g-recaptcha{$id}', {
|
|
'sitekey': '{$this->getPubkey()}'
|
|
});
|
|
", 100);
|
|
return '<div id="g-recaptcha' . $id . '"></div>';
|
|
}
|
|
}
|