| Current Path : /var/www/components/com_comment/helpers/ |
| Current File : /var/www/components/com_comment/helpers/captcha.php |
<?php
/*
* Copyright Copyright (C) 2010 Daniel Dimitrov (http://compojoom.com). All rights reserved.
* Copyright Copyright (C) 2007 Alain Georgette. All rights reserved.
* Copyright Copyright (C) 2006 Frantisek Hliva. All rights reserved.
* License http://www.gnu.org/copyleft/gpl.html GNU/GPL, see LICENSE.php
*
* !JoomlaComment is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* !JoomlaComment is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
* MA 02110-1301, USA.
*/
defined('_JEXEC') or die('Direct Access to this location is not allowed.');
class ccommentHelperCaptcha
{
public static function insertCaptcha($inputname, $CaptchaType, $RecaptchaPublicKey)
{
switch ($CaptchaType)
{
case "recaptcha":
return ccommentHelperRecaptcha::getHtml($RecaptchaPublicKey);
default:
$refid = md5(time() * rand());
$uri = JRoute::_('index.php?option=com_comment&task=captcha.generate&refid=' . $refid);
$insertstr =
"<img src=\"" . $uri . "\" alt=\"" . $CaptchaType . " Security Image\" />\n"
. "<input type=\"hidden\" name=\"" . $inputname . "\" value=\"" . $refid . "\" />"
;
return $insertstr;
}
}
public static function checkCaptcha($referenceid, $enteredvalue)
{
$db = JFactory::getDBO();
$referenceid = $db->q($referenceid);
$enteredvalue = $db->q($enteredvalue);
// delete and check in the same time if exist
$query = "DELETE FROM #__comment_captcha "
. "\n WHERE referenceid=" . $referenceid . " AND hiddentext=" . $enteredvalue;
$db->setQuery($query);
$db->execute();
$result = $db->getAffectedRows();
if ($result)
{
return true;
}
return false;
}
public static function captchaResult($CaptchaType, $RecaptchaPrivateKey)
{
$input = JFactory::getApplication()->input;
$data = $input->get('jform', '', 'array');
switch ($CaptchaType)
{
case "recaptcha":
$recaptcha_response_field = $input->get("g-recaptcha-response", '', 'string');
$resp = ccommentHelperRecaptcha::checkAnswer(
$RecaptchaPrivateKey,
$_SERVER["REMOTE_ADDR"],
$recaptcha_response_field
);
return $resp;
default:
$security_try = $data["security_try"];
$checkSecurity = false;
if ($security_try)
{
$security_refid = $data["security_refid"];
$checkSecurity = self::checkCaptcha($security_refid, $security_try);
}
return $checkSecurity;
}
}
}