/**
* Validates captcha field input
*
* @param string $val The captcha code input
*
* @return boolean False if the captcha check fails verification
**/
private function checkCaptchaInput($val)
{
global $whmcs;
$captchatype = $whmcs->get_config("CaptchaType");
if ($captchatype == "recaptcha") {
if (!function_exists("recaptcha_check_answer")) {
require ROOTDIR . "/includes/recaptchalib.php";
}
$resp = recaptcha_check_answer($whmcs->get_config("ReCAPTCHAPrivateKey"), $whmcs->get_user_ip(), $whmcs->get_req_var("recaptcha_challenge_field"), $whmcs->get_req_var("recaptcha_response_field"));
if (!is_object($resp)) {
return false;
}
if (!$resp->is_valid) {
return false;
}
} else {
if ($_SESSION['captchaValue'] != md5(strtoupper($val))) {
generateNewCaptchaCode();
return false;
}
}
generateNewCaptchaCode();
return true;
}
<?php
/**
*
* @ WHMCS FULL DECODED & NULLED
*
* @ Version : 5.2.15
* @ Author : MTIMER
* @ Release on : 2013-12-24
* @ Website : http://www.mtimer.cn
*
**/
require "../init.php";
if (!function_exists("imagecreatefrompng")) {
exit("You need to recompile with the GD library included in PHP for this feature to be able to function");
}
$rand = generateNewCaptchaCode();
$image = imagecreatefrompng("../images/verify.png");
$textColor = imagecolorallocate($image, 0, 0, 0);
imagestring($image, 5, 28, 4, $rand, $textColor);
header("Expires: Mon, 26 Jul 1997 05:00:00 GMT");
header("Last-Modified: " . gmdate("D, d M Y H:i:s") . " GMT");
header("Cache-Control: no-store, no-cache, must-revalidate");
header("Cache-Control: post-check=0, pre-check=0", false);
header("Pragma: no-cache");
header("Content-type: image/png");
imagepng($image);
imagedestroy($image);