Version 3.2.3
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@@ -39,68 +39,83 @@
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*/
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define("RECAPTCHA_API_SERVER", "http://www.google.com/recaptcha/api");
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define("RECAPTCHA_API_SECURE_SERVER", "https://www.google.com/recaptcha/api");
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define("RECAPTCHA_VERIFY_SERVER", "www.google.com");
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define("RECAPTCHA_VERIFY_SERVER", "http://www.google.com");
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/**
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* @file recaptcha.php Plugin for reCAPTCHA
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*~TERABYTE_DOC_READY~
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* $Copyright: (c) 2001 - 2011 Invision Power Services, Inc.$
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* $License: This is NULLED!
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* $Author: bfarber $
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* @since Friday 19th May 2006 17:33
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* $LastChangedDate: 2011-03-09 18:12:09 -0500 (Wed, 09 Mar 2011) $
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* @version v3.2.3
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* $Revision: 8004 $
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*/
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/**
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*
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* @class captchaPlugin
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* @brief Plugin for reCAPTCHA
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* @note This plugin is automatically loaded by classCaptcha class based on the CAPTCHA setting
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*
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*/
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class captchaPlugin
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{
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/**#@+
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* Registry objects
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/**
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* Registry Object Shortcuts
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*
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* @var object
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* @var $registry
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* @var $DB
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* @var $settings
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* @var $member
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*/
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public $registry;
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public $DB;
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public $settings;
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public $request;
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public $lang;
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public $member;
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public $memberData;
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/**#@-*/
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/**
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* Error code from reCAPTCHA
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* String that stores the error code from reCAPTCHA (if any)
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*
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* @var string
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* @var $error
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*/
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public $error;
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/**
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* reCAPTCHA public key
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* String that stores reCAPTCHA public key
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*
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* @var string
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* @var $public_key
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*/
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public $public_key;
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/**
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* reCAPTCHA private key
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* String that stores reCAPTCHA private key
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*
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* @var string
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* @var $private_key
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*/
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public $private_key;
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/**
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* Flag whether to use SSL or not
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* Integer flag that stores whether to use SSL or not for the connection
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*
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* @var string
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* @var $private_key
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*/
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public $useSSL;
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/**
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* Constructor
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*
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* @access public
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* @param object Registry Object
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* @return void
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* @param object $registry Registry Object
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* @return @e void
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*/
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public function __construct( ipsRegistry $registry )
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{
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$this->registry = $registry;
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$this->DB = $this->registry->DB();
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$this->settings =& $this->registry->fetchSettings();
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$this->request =& $this->registry->fetchRequest();
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$this->lang = $this->registry->getClass('class_localization');
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$this->member = $this->registry->member();
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$this->memberData =& $this->registry->member()->fetchMemberData();
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/* Settings */
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$this->public_key = trim( $this->settings['recaptcha_public_key'] );
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@@ -109,12 +124,16 @@ class captchaPlugin
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}
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/**
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* Gets the challenge HTML (javascript and non-javascript version).
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* Returns the reCAPTCHA template (javascript and non-javascript version).
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* This is called from the browser, and the resulting reCAPTCHA HTML widget
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* is embedded within the HTML form it was called from.
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*
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* @access public
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* @return string Form HTML to display
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* @return @e string HTML template for reCAPTCHA form
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*
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* <b>Example Usage:</b>
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* @code
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* $recaptchaForm = $this->getTemplate();
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* @endcode
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*/
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public function getTemplate()
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{
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@@ -155,17 +174,21 @@ class captchaPlugin
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}
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/**
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* Validate the input code
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* Validates the entered captcha code
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*
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* @access public
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* @return boolean Validation successful
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* @since 1.0
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* @return @e boolean TRUE if the code is valid otherwise FALSE
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*
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* <b>Example Usage:</b>
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* @code
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* $isValid = $this->validate();
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* @endcode
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*/
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public function validate()
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{
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if ( !$this->private_key )
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{
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return '';
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$this->error = 'no_private_key';
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return FALSE;
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}
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$captcha_unique_id = $_REQUEST['recaptcha_challenge_field'];
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@@ -176,16 +199,17 @@ class captchaPlugin
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return false;
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}
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$response = $this->_recaptchaPost( RECAPTCHA_VERIFY_SERVER, "/recaptcha/api/verify",
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array (
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'privatekey' => $this->private_key,
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'remoteip' => $this->member->ip_address,
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'challenge' => $captcha_unique_id,
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'response' => $captcha_input
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)
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);
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$classToLoad = IPSLib::loadLibrary( IPS_KERNEL_PATH . '/classFileManagement.php', 'classFileManagement' );
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$communication = new $classToLoad();
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$answers = explode( "\n", $response[1] );
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$response = $communication->postFileContents( RECAPTCHA_VERIFY_SERVER . "/recaptcha/api/verify", array(
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'privatekey' => $this->private_key,
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'remoteip' => $this->member->ip_address,
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'challenge' => $captcha_unique_id,
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'response' => $captcha_input
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) );
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$answers = explode( "\n", $response );
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if ( trim($answers[0]) == 'true' )
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{
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@@ -196,88 +220,8 @@ class captchaPlugin
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/**
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* It's an error
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*/
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$this->error = $answers[1];
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$this->error = $answers[1];
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return FALSE;
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}
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}
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/**
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* Gets a URL where the user can sign up for reCAPTCHA. If your application
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* has a configuration page where you enter a key, you should provide a link
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* using this function.
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*
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* @access public
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* @param string $domain The domain where the page is hosted
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* @param string $appname The name of your application
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*/
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public function getSignupUrl( $domain = null, $appname = null )
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{
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return "https://www.google.com/recaptcha/admin/create?" . $this->_encodeQueryString( array( 'domain' => $domain, 'app' => $appname ) );
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}
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/**
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* Submits an HTTP POST to a reCAPTCHA server
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*
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* @access private
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* @param string $host
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* @param string $path
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* @param array $data
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* @param int port
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* @return array response
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*/
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private function _recaptchaPost( $host, $path, $data, $port = 80 )
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{
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$req = $this->_encodeQueryString( $data );
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$http_request = "POST $path HTTP/1.0\r\n";
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$http_request .= "Host: $host\r\n";
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$http_request .= "Content-Type: application/x-www-form-urlencoded;\r\n";
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$http_request .= "Content-Length: " . strlen($req) . "\r\n";
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$http_request .= "User-Agent: reCAPTCHA/PHP\r\n";
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$http_request .= "\r\n";
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$http_request .= $req;
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$response = '';
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if( false == ( $fs = @fsockopen($host, $port, $errno, $errstr, 10) ) )
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{
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return false;
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}
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fwrite($fs, $http_request);
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while ( !feof($fs) )
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{
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$response .= fgets($fs, 1160); // One TCP-IP packet
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}
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fclose($fs);
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$response = explode( "\r\n\r\n", $response, 2 );
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return $response;
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}
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/**
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* Encode array of data into a query string
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*
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* @access private
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* @param array $data
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* @return string query string
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*/
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private function _encodeQueryString( $data )
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{
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$req = "";
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foreach ( $data as $key => $value )
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{
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$req .= $key . '=' . urlencode( stripslashes($value) ) . '&';
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}
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// Cut the last '&'
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$req = substr( $req, 0, strlen($req)-1 );
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return $req;
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}
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}
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}
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