<?php
/**
 * Created by PhpStorm.
 * User: lcc
 * Date: 2020/1/19
 * Time: 19:51
 */

class WxRefundNotify
{
    public $return_info;
    public  function __construct($str, $key) {
        $str=$this->xmltoArray($str);
        if($str['return_code']=='SUCCESS'){
            $decrypt = base64_decode($str['req_info'], true);
            $this->return_info=$this->xmlToArray(openssl_decrypt($decrypt , 'aes-256-ecb', MD5($key), OPENSSL_RAW_DATA));
            $this->return_info['return_code']='SUCCESS';
        }else{
            $this->return_info=['return_code'=>'FAIL','return_msg'=>$str['return_msg']];
        }
    }
    public function decryptData(){
        return $this->return_info;

    }
    public function xmlToArray($xml)
    {
        libxml_disable_entity_loader(true);     // 禁止引用外部xml实体
        $jsonxml = json_encode(simplexml_load_string($xml, 'SimpleXMLElement', LIBXML_NOCDATA));
        $result = json_decode($jsonxml, true);
        return $result;
    }
}