<?php
/**
 * 人机验证
 */

namespace sms;

use afs\Request\V20180112 as Afs;

class Verify
{
    protected $accesskey_id;
    protected $accesskey_secret;

    public function __construct ()
    {
        $this->accesskey_id = env('aliyun.access_key', '');
        $this->accesskey_secret = env('aliyun.secret_key', '');
    }

    /**
     * 人机验证
     * @param string $app_key
     * @param string $scene
     * @param string $sessionId
     * @param string $token
     * @param string $sig
     * @return bool
     */
    public function ali_verify ($app_key = '', $scene = '', $sessionId = '', $token = '', $sig = '')
    {
        if (env('aliyun.verify_appkey', '') != $app_key || env('aliyun.verify_scene', '') != $scene) return false;
        include_once __DIR__ . '/../aliyun-afs/aliyun-php-sdk-core/Config.php';
        //YOUR ACCESS_KEY、YOUR ACCESS_SECRET请替换成您的阿里云accesskey id和secret
        $iClientProfile = \DefaultProfile::getProfile("cn-hangzhou", env('aliyun.access_key', ''), env('aliyun.secret_key', ''));
        $client = new \DefaultAcsClient($iClientProfile);
        \DefaultProfile::addEndpoint("cn-hangzhou", "cn-hangzhou", "afs", "afs.aliyuncs.com");
        $request = new Afs\AuthenticateSigRequest();
        $request->setSessionId($sessionId);// 必填参数，从前端获取，不可更改，android和ios只传这个参数即可
        $request->setToken($token);// 必填参数，从前端获取，不可更改
        $request->setSig($sig);// 必填参数，从前端获取，不可更改
        $request->setScene($scene);// 必填参数，从前端获取，不可更改
        $request->setAppKey($app_key);//必填参数，后端填写
        $request->setRemoteIp(app('request')->ip());//必填参数，后端填写
        $response = $client->getAcsResponse($request);//返回code 100表示验签通过，900表示验签失败
        $response = object_array($response);
        sr_log($response);
        if ($response['Code'] == 100) { //验签成功
            return true;
        }
        return false;
    }

    /**
     * 生成签名
     * @param $data
     * @return string
     */
    public function get_sign ($data)
    {
        unset($data['sign']);
        $str = '68j5r28xc1v21ya0a66ecef62b4edfdcc1fe' . '2';
        foreach ($data as $k => $v) {
            $str .= $k;
            if (is_array($v)) {
                foreach ($v as $kk => $vv) {
                    $str .= $kk;
                    $str .= $vv;
                }
            } else {
                $str .= $v;
            }
        }
        for ($i = 0; $i < strlen($str); $i++) {
            $temp_str = ord($str[$i]);
            $change_after[$i] = $temp_str;
        }
        sort($change_after);
        $str = '';
        for ($i = 0; $i < count($change_after); $i++) {
            $str .= chr($change_after[$i]);
        }
        $str = preg_replace('/[^a-zA-Z0-9]/s', '', $str);
        $sign_me = strtoupper(MD5($str));
        return $sign_me;
    }
}