BoxBilling Licensing server callback

license_validator.php

<?php
/**
 * BoxBilling
 *
 * LICENSE
 *
 * This source file is subject to the license that is bundled
 * with this package in the file LICENSE.txt
 * It is also available through the world-wide-web at this URL:
 * http://www.boxbilling.com/LICENSE.txt
 * If you did not receive a copy of the license and are unable to
 * obtain it through the world-wide-web, please send an email
 * to license@boxbilling.com so we can send you a copy immediately.
 *
 * @copyright Copyright (c) 2010-2012 BoxBilling (http://www.boxbilling.com)
 * @license   http://www.boxbilling.com/LICENSE.txt
 * @version   $Id$
 */

function getLicenseDetails($key)
{
    $url = 'http://www.yourdomain.com/boxbilling/api/guest/servicelicense/check';
    //$url = 'http://demo.boxbilling.com/api/guest/servicelicense/check'; // use this url to test license on demo.boxbilling.com server
    $params = array();
    $params['license']  = $key;
    $params['host']     = 'hostname';
    $params['path']     = dirname(__FILE__);
    $params['version']  = '1.0';

    $ch = curl_init();
    curl_setopt($ch, CURLOPT_URL, $url);
    curl_setopt($ch, CURLOPT_VERBOSE, 0);
    curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, FALSE);
    curl_setopt($ch, CURLOPT_SSL_VERIFYHOST, FALSE);
    curl_setopt($ch, CURLOPT_RETURNTRANSFER,1);
    curl_setopt($ch, CURLOPT_CONNECTTIMEOUT, 20);
    curl_setopt($ch, CURLOPT_TIMEOUT, 20);
    curl_setopt($ch, CURLOPT_POST,              true);
    curl_setopt($ch, CURLOPT_POSTFIELDS,        json_encode($params));
    $result = curl_exec($ch);

    $code = curl_getinfo($ch, CURLINFO_HTTP_CODE);
    if($code != 200) {
        error_log('CURLINFO_HTTP_CODE: '.$code);
    }
    
    return json_decode($result, true);
}

$json = getLicenseDetails('test');
if(!$json['valid']) {
    print $json['error'];
}