hotime/vendor/github.com/silenceper/wechat/v2/pay/notify/refund.go
2022-05-24 13:49:25 +08:00

78 lines
2.1 KiB
Go

package notify
import (
"crypto/md5"
"encoding/base64"
"encoding/hex"
"encoding/xml"
"errors"
"github.com/silenceper/wechat/v2/util"
)
// reference: https://pay.weixin.qq.com/wiki/doc/api/jsapi.php?chapter=9_16&index=10
// RefundedResult 退款回调
type RefundedResult struct {
ReturnCode *string `xml:"return_code"`
ReturnMsg *string `xml:"return_msg"`
AppID *string `xml:"appid"`
MchID *string `xml:"mch_id"`
NonceStr *string `xml:"nonce_str"`
ReqInfo *string `xml:"req_info"`
}
// RefundedReqInfo 退款结果(明文)
type RefundedReqInfo struct {
TransactionID *string `xml:"transaction_id"`
OutTradeNO *string `xml:"out_trade_no"`
RefundID *string `xml:"refund_id"`
OutRefundNO *string `xml:"out_refund_no"`
TotalFee *int `xml:"total_fee"`
SettlementTotalFee *int `xml:"settlement_total_fee"`
RefundFee *int `xml:"refund_fee"`
SettlementRefundFee *int `xml:"settlement_refund_fee"`
RefundStatus *string `xml:"refund_status"`
SuccessTime *string `xml:"success_time"`
RefundRecvAccount *string `xml:"refund_recv_accout"`
RefundAccount *string `xml:"refund_account"`
RefundRequestSource *string `xml:"refund_request_source"`
}
// RefundedResp 消息通知返回
type RefundedResp struct {
ReturnCode string `xml:"return_code"`
ReturnMsg string `xml:"return_msg"`
}
// DecryptReqInfo 对退款结果进行解密
func (notify *Notify) DecryptReqInfo(result *RefundedResult) (*RefundedReqInfo, error) {
var err error
if result == nil || result.ReqInfo == nil {
return nil, errors.New("empty refunded_result or req_info")
}
base64Decode, err := base64.StdEncoding.DecodeString(*result.ReqInfo)
if err != nil {
return nil, err
}
hash := md5.New()
if _, err = hash.Write([]byte(notify.Key)); err != nil {
return nil, err
}
md5APIKey := hex.EncodeToString(hash.Sum(nil))
data, err := util.AesECBDecrypt(base64Decode, []byte(md5APIKey))
if err != nil {
return nil, err
}
res := &RefundedReqInfo{}
if err = xml.Unmarshal(data, res); err != nil {
return nil, err
}
return res, nil
}