forked from golang/hotime
110 lines
3.4 KiB
Go
110 lines
3.4 KiB
Go
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package pay
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import (
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"encoding/xml"
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"fmt"
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"github.com/silenceper/wechat/util"
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)
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var refundGateway = "https://api.mch.weixin.qq.com/secapi/pay/refund"
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//RefundParams 调用参数
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type RefundParams struct {
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TransactionID string
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OutRefundNo string
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TotalFee string
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RefundFee string
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RefundDesc string
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RootCa string //ca证书
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}
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//refundRequest 接口请求参数
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type refundRequest struct {
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AppID string `xml:"appid"`
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MchID string `xml:"mch_id"`
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NonceStr string `xml:"nonce_str"`
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Sign string `xml:"sign"`
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SignType string `xml:"sign_type,omitempty"`
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TransactionID string `xml:"transaction_id"`
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OutRefundNo string `xml:"out_refund_no"`
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TotalFee string `xml:"total_fee"`
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RefundFee string `xml:"refund_fee"`
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RefundDesc string `xml:"refund_desc,omitempty"`
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//NotifyUrl string `xml:"notify_url,omitempty"`
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}
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//RefundResponse 接口返回
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type RefundResponse struct {
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ReturnCode string `xml:"return_code"`
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ReturnMsg string `xml:"return_msg"`
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AppID string `xml:"appid,omitempty"`
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MchID string `xml:"mch_id,omitempty"`
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NonceStr string `xml:"nonce_str,omitempty"`
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Sign string `xml:"sign,omitempty"`
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ResultCode string `xml:"result_code,omitempty"`
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ErrCode string `xml:"err_code,omitempty"`
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ErrCodeDes string `xml:"err_code_des,omitempty"`
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TransactionID string `xml:"transaction_id,omitempty"`
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OutTradeNo string `xml:"out_trade_no,omitempty"`
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OutRefundNo string `xml:"out_refund_no,omitempty"`
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RefundID string `xml:"refund_id,omitempty"`
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RefundFee string `xml:"refund_fee,omitempty"`
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SettlementRefundFee string `xml:"settlement_refund_fee,omitempty"`
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TotalFee string `xml:"total_fee,omitempty"`
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SettlementTotalFee string `xml:"settlement_total_fee,omitempty"`
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FeeType string `xml:"fee_type,omitempty"`
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CashFee string `xml:"cash_fee,omitempty"`
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CashFeeType string `xml:"cash_fee_type,omitempty"`
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}
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//Refund 退款申请
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func (pcf *Pay) Refund(p *RefundParams) (rsp RefundResponse, err error) {
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nonceStr := util.RandomStr(32)
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param := make(map[string]interface{})
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param["appid"] = pcf.AppID
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param["mch_id"] = pcf.PayMchID
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param["nonce_str"] = nonceStr
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param["out_refund_no"] = p.OutRefundNo
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param["refund_desc"] = p.RefundDesc
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param["refund_fee"] = p.RefundFee
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param["total_fee"] = p.TotalFee
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param["sign_type"] = "MD5"
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param["transaction_id"] = p.TransactionID
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bizKey := "&key=" + pcf.PayKey
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str := orderParam(param, bizKey)
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sign := util.MD5Sum(str)
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request := refundRequest{
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AppID: pcf.AppID,
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MchID: pcf.PayMchID,
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NonceStr: nonceStr,
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Sign: sign,
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SignType: "MD5",
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TransactionID: p.TransactionID,
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OutRefundNo: p.OutRefundNo,
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TotalFee: p.TotalFee,
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RefundFee: p.RefundFee,
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RefundDesc: p.RefundDesc,
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}
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rawRet, err := util.PostXMLWithTLS(refundGateway, request, p.RootCa, pcf.PayMchID)
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if err != nil {
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return
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}
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err = xml.Unmarshal(rawRet, &rsp)
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if err != nil {
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return
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}
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if rsp.ReturnCode == "SUCCESS" {
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if rsp.ResultCode == "SUCCESS" {
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err = nil
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return
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}
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err = fmt.Errorf("refund error, errcode=%s,errmsg=%s", rsp.ErrCode, rsp.ErrCodeDes)
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return
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}
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err = fmt.Errorf("[msg : xmlUnmarshalError] [rawReturn : %s] [params : %s] [sign : %s]",
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string(rawRet), str, sign)
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return
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}
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