78 lines
2.8 KiB
PHP
78 lines
2.8 KiB
PHP
<?php
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/* --------------------------------------------------------------------
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This file is part of Chevereto Free.
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https://chevereto.com/free
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(c) Rodolfo Berrios <rodolfo@chevereto.com>
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For the full copyright and license information, please view the LICENSE
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file that was distributed with this source code.
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--------------------------------------------------------------------- */
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/* --------------------------------------------------------------------
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WARNING
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This system is not about making installations stop working by
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software. This system is about fast recognition of invalid
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installations and then submit copyright complaints to the
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participating parties (website owner, hosting company, network
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operator, domain register, etc).
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The system will never output 'legal' or 'illegal' or make a
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working an installation to stop. It will just output strings.
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You indeed can have the system working even with this file empty,
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but that will label your installation as illegal upon license
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check to the eyes of Chevereto copyright holder and if that happens
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the use of the Chevereto in the target website will be forbidden.
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Chevereto license check system works like any normal request and
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it works in two steps:
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1. Ask for the license identifier ($public_id)
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2. Ask for $hash which is generated using $secret and a value
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provided in the request (complement).
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The complement is provided in the request and the result is an
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encrypted string ($hash). This result must match with the one
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stored at Chevereto.com and that only happens if the complement
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match with the $secret, therefore, it will only match if
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$license is a valid Chevereto license.
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Any modification of this file, unexpected output, deny the request,
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etc. Will label the installation as illegal to the copyright holder.
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Basically don't modify this file.
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For license terms and end user license agreement please read:
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http://chevereto.com/license
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--------------------------------------------------------------------- */
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if(!defined('access') or !access) die('This file cannot be directly accessed.');
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if(isset($_REQUEST['chv-license-info'])) {
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function get_license_info() {
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require_once(G_APP_PATH . 'license/key.php');
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list($public_id, $secret) = explode(':', $license);
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$json = ['code' => 400];
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if($_REQUEST['get'] == 'id') {
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$return = $public_id;
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}
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if($_REQUEST['get'] == 'hash' and !empty($_REQUEST['complement'])) {
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$return = hash('sha512', $secret.$_REQUEST['complement']);
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}
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if(isset($return)) {
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$json = ['code' => 200, 'return' => $return];
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}
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header('Last-Modified: '.gmdate('D, d M Y H:i:s').'GMT');
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header('Cache-Control: no-cache, must-revalidate');
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header('Pragma: no-cache');
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header('Content-type: application/json; charset=UTF-8');
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die(json_encode($json));
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}
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get_license_info();
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} |