Файл: IPBMafia.ru_IPB_3.4.6_Final_Rus _Nulled/board/upload/ips_kernel/classCaptchaPlugin/recaptcha.php
Строк: 184
<?php
/*
* This is a PHP library that handles calling reCAPTCHA.
* - Documentation and latest version
* http://recaptcha.net/plugins/php/
* - Get a reCAPTCHA API Key
* https://www.google.com/recaptcha/admin/create
* - Discussion group
* http://groups.google.com/group/recaptcha
*
* Copyright (c) 2007 reCAPTCHA -- http://recaptcha.net
* AUTHORS:
* Mike Crawford
* Ben Maurer
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
* in the Software without restriction, including without limitation the rights
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
* THE SOFTWARE.
*/
/**
* The reCAPTCHA server URL's
*/
define("RECAPTCHA_API_SERVER", "http://www.google.com/recaptcha/api");
define("RECAPTCHA_API_SECURE_SERVER", "https://www.google.com/recaptcha/api");
define("RECAPTCHA_VERIFY_SERVER", "http://www.google.com");
/**
* @file recaptcha.php Plugin for reCAPTCHA
*~TERABYTE_DOC_READY~
* $Copyright: (c) 2001 - 2011 Invision Power Services, Inc.$
* $License: http://www.invisionpower.com/company/standards.php#license$
* $Author: rashbrook $
* @since Friday 19th May 2006 17:33
* $LastChangedDate: 2013-10-16 19:11:24 -0400 (Wed, 16 Oct 2013) $
* @version v3.4.6
* $Revision: 12381 $
*/
/**
*
* @class captchaPlugin
* @brief Plugin for reCAPTCHA
* @note This plugin is automatically loaded by classCaptcha class based on the CAPTCHA setting
*
*/
class captchaPlugin
{
/**#@+
* Registry Object Shortcuts
*
* @var object
*/
public $registry;
public $DB;
public $settings;
public $member;
/**#@-*/
/**
* String that stores the error code from reCAPTCHA (if any)
*
* @var string
*/
public $error;
/**
* String that stores reCAPTCHA public key
*
* @var string
*/
public $public_key;
/**
* String that stores reCAPTCHA private key
*
* @var string
*/
public $private_key;
/**
* Integer flag that stores whether to use SSL or not for the connection
*
* @var bool
*/
public $useSSL;
/**
* Constructor
*
* @param object $registry Registry Object
* @return @e void
*/
public function __construct( ipsRegistry $registry )
{
$this->registry = $registry;
$this->DB = $this->registry->DB();
$this->settings =& $this->registry->fetchSettings();
$this->member = $this->registry->member();
/* Settings */
$this->public_key = trim( $this->settings['recaptcha_public_key'] );
$this->private_key = trim( $this->settings['recaptcha_private_key'] );
$this->useSSL = ( $this->settings['logins_over_https'] or $this->registry->output->isHTTPS );
}
/**
* Returns the reCAPTCHA template (javascript and non-javascript version).
* This is called from the browser, and the resulting reCAPTCHA HTML widget
* is embedded within the HTML form it was called from.
*
* @return @e string
*
* <b>Example Usage:</b>
* @code
* $recaptchaForm = $this->getTemplate();
* @endcode
*/
public function getTemplate()
{
if ( ! $this->public_key )
{
return '';
}
if ($this->useSSL)
{
$server = RECAPTCHA_API_SECURE_SERVER;
}
else
{
$server = RECAPTCHA_API_SERVER;
}
$html = '';
$html .= "<script type='text/javascript'>
var RecaptchaOptions = {
lang : '{$this->settings['recaptcha_language']}',
theme : '{$this->settings['recaptcha_theme']}',
tabindex: 49
};
</script>";
$html .= '<script type="text/javascript" src="'. $server . '/challenge?k=' . $this->public_key . '&hl=' . $this->settings['recaptcha_language'] . '"></script>
<noscript>
<iframe src="'. $server . '/noscript?k=' . $this->public_key . '&hl=' . $this->settings['recaptcha_language'] . '" height="300" width="500" frameborder="0"></iframe><br/>
<textarea name="recaptcha_challenge_field" rows="3" cols="40"></textarea>
<input type="hidden" name="recaptcha_response_field" value="manual_challenge"/>
</noscript>';
//-----------------------------------------
// Return Template Bit
//-----------------------------------------
return $this->registry->output->getTemplate('global_other')->captchaRecaptcha( $html );
}
/**
* Validates the entered captcha code, returning true on success and false on failure
*
* @return @e boolean
*
* <b>Example Usage:</b>
* @code
* $isValid = $this->validate();
* @endcode
*/
public function validate()
{
if ( !$this->private_key )
{
$this->error = 'no_private_key';
return FALSE;
}
$captcha_unique_id = $_REQUEST['recaptcha_challenge_field'];
$captcha_input = $_REQUEST['recaptcha_response_field'];
//-----------------------------------------
// Path disclosure prevention
//-----------------------------------------
if ( is_array( $captcha_input ) )
{
return false;
}
if ( $captcha_input == null || strlen($captcha_input) == 0 || $captcha_unique_id == null || strlen($captcha_unique_id) == 0)
{
return false;
}
$classToLoad = IPSLib::loadLibrary( IPS_KERNEL_PATH . '/classFileManagement.php', 'classFileManagement' );
$communication = new $classToLoad();
$response = $communication->postFileContents( RECAPTCHA_VERIFY_SERVER . "/recaptcha/api/verify", array(
'privatekey' => $this->private_key,
'remoteip' => $this->member->ip_address,
'challenge' => $captcha_unique_id,
'response' => $captcha_input
) );
$answers = explode( "n", $response );
if ( trim($answers[0]) == 'true' )
{
return TRUE;
}
else
{
/**
* It's an error
*/
$this->error = $answers[1];
return FALSE;
}
}
}