Subversion Repositories php_clientchallenge

<?php

/*

 * php_clientchallenge

 * Copyright 2021-2022 Daniel Marschall, ViaThinkSoft

 *

 * Licensed under the Apache License, Version 2.0 (the "License");

 * you may not use this file except in compliance with the License.

 * You may obtain a copy of the License at

 *

 *     http://www.apache.org/licenses/LICENSE-2.0

 *

 * Unless required by applicable law or agreed to in writing, software

 * distributed under the License is distributed on an "AS IS" BASIS,

 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.

 * See the License for the specific language governing permissions and

 * limitations under the License.

 */

if (file_exists(__DIR__ . '/../vendor/autoload.php')) {

        require_once __DIR__ . '/../vendor/autoload.php';

}

require_once __DIR__ . '/../ClientChallenge.class.php';

require_once __DIR__ . '/config.inc.php';

if (isset($_REQUEST['action']) && ($_REQUEST['action'] === 'add_numbers')) {

        // Check request field "vts_validation_result" for valid response of the Challenge

        try {

                if (!isset($_REQUEST['vts_validation_result'])) throw new \Exception('No challenge response found');

                $client_response = @json_decode($_REQUEST['vts_validation_result'], true);

                \ViaThinkSoft\RateLimitingChallenge\ClientChallenge::checkValidation($client_response, MAX_TIME, VTS_CS_SERVER_SECRET);

        } catch (\Exception $e) {

                $res = array("error" => $e->getMessage());

                header('Content-Type:application/json');

                die(json_encode($res));

        }

        // Do your stuff here. Example:

        $a = $_REQUEST['a'];

        $b = $_REQUEST['b'];

        $res = array("result" => ($a+$b));

        header('Content-Type:application/json');

        die(json_encode($res));

}