fastadmin 微信支付宝整合插件1.3.0 微信退款

构造函数加，用V3
set_addon_config('epay', ['version'=>'v3'], false);

//退款
    public static function refunds($orderdata,$type, $config = [])
    {
        $type = strtolower($type);
        if (!in_array($type, ['wechat', 'alipay'])) {
            return false;
        }
        try {
            $config = self::getConfig($type);
            $pay = $type == 'wechat' ? Pay::wechat($config) : Pay::alipay($config);
            $result = $pay->refund($orderdata);
        } catch (Exception $e) {
             return $e->getMessage();
        }
        
        //使用重写的Response类、RedirectResponse、Collection类
        $return_arr = $result->toArray();
        return $return_arr;
    }

$notifyurl = local_domain()."/api/wxpays/refundcb";
    $orders = [
     'out_trade_no' => $order['order_sn'],
     'out_refund_no' => $row['refund_sn'],
     'notify_url' => $notifyurl,
     'amount' => [
           'refund' => $row['refund_amount'] * 100,
           'total' => $order['order_amount'] * 100,
           'currency' => 'CNY',
     ],
     ];
                
 $result = \addons\epay\library\Service::refunds($orders,'wechat');

/**
     * 会员微信支付回调
     *
     */
    public function refundcb(){
        $datas = file_get_contents("php://input");
        
        $re = $this->payment_notify(json_decode($datas,true));

        $order_refund = db("order_refund")->where("refund_sn", $re['out_refund_no'])->find();
        if($order_refund['refund_status'] == 'SUCCESS'){
            $order_refund = db("order_refund")->where("refund_sn", $re['out_refund_no'])->update(['refund_status' => 1, 'refund_msg' => $re['user_received_account']]);
        }else{
            $order_refund = db("order_refund")->where("refund_sn", $re['out_refund_no'])->update(['refund_status' => 2, 'refund_msg' => $re['user_received_account']]);
        }
        // array(9) {
        //   ["mchid"] => string(10) "16503973"
        //   ["out_trade_no"] => string(18) "2023082008406397"
        //   ["transaction_id"] => string(28) "42000019512023083246790610"
        //   ["out_refund_no"] => string(12) "wx169332946"
        //   ["refund_id"] => string(29) "503014069320230900842130470"
        //   ["refund_status"] => string(7) "SUCCESS"
        //   ["success_time"] => string(25) "2023-08-29T23:12:34+08:00"
        //   ["amount"] => array(4) {
        //     ["total"] => int(2)
        //     ["refund"] => int(1)
        //     ["payer_total"] => int(2)
        //     ["payer_refund"] => int(1)
        //   }
        //   ["user_received_account"] => string(18) "支付用户零钱"
        // }
        
        echo json_encode(['code' => 'SUCCESS', 'message' => '成功']);
    }


    /*
    * 微信支付V3回调解密
    * */
    public function payment_notify($input_data)
    {
        $key = 'f940d7***********d5fd49';//商户平台设置的api v3 密码
        $text = base64_decode($input_data['resource']['ciphertext']); //解密
        
        /* =========== 使用V3支付需要PHP7.2.6安装sodium扩展才能进行解密参数  ================ */
        $str = sodium_crypto_aead_aes256gcm_decrypt($text, $input_data['resource']['associated_data'], $input_data['resource']['nonce'], $key);
        $res = json_decode($str, true);
        
        return $res;
    }