<?php
/**
 * This file is part of webman.
 *
 * Licensed under The MIT License
 * For full copyright and license information, please see the MIT-LICENSE.txt
 * Redistributions of files must retain the above copyright notice.
 *
 * @author    walkor<walkor@workerman.net>
 * @copyright walkor<walkor@workerman.net>
 * @link      http://www.workerman.net/
 * @license   http://www.opensource.org/licenses/mit-license.php MIT License
 */

namespace app\middleware;

use Illuminate\Support\Arr;
use Webman\MiddlewareInterface;
use Webman\Http\Response;
use Webman\Http\Request;

/**
 * Class StaticFile
 * @package app\middleware
 */
class Decrypt implements MiddlewareInterface
{
    public function process(Request $request, callable $handler): Response
    {
        $transfersecret=$request->header('transfersecret');
        if(empty($transfersecret)){
            return $this->transfer();
        }
        $string_data = openssl_decrypt(base64_decode($transfersecret),'AES-128-ECB',getenv ("JWT_AESKEY"),OPENSSL_RAW_DATA);
        if(!$string_data){
            return $this->transfer();
        }
        $param_data = json_decode($string_data,true);
        if(!$param_data){
            return $this->transfer();
        }
        $request->param_data=$param_data;
        /** @var Response $response */
        return $handler($request);
    }

    public function transfer()
    {
        $arr=[
            0=>'https://www.baidu.com',
            1=>'https://weibo.com',
            2=>'https://www.douyin.com',
            3=>'https://www.jd.com',
            4=>'https://uland.taobao.com',
            5=>'https://news.qq.com',
            6=>'https://www.toutiao.com',
            7=>'https://www.kuaishou.com',
            8=>'https://www.sohu.com',
        ];
        return redirect($arr[mt_rand(0,8)]);
    }
    public function sign($array)
    {
        ksort($array);                               //ASCII码排序
        $md5str = "";
        foreach ($array as $key => $val) {
            $md5str = $md5str . $key . "=" . $val . "&";
        }
        return md5($md5str . "key=".getenv('JWT_PRIVATEKEY'));
    }
}