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336 lines
9.4 KiB
336 lines
9.4 KiB
package wechat
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import (
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"encoding/xml"
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"errors"
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"fmt"
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"log"
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"reflect"
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"strings"
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"git.tetele.net/tgo/network"
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"git.tetele.net/tgo/helper"
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)
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//请求支付
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type PayXml struct {
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XMLName xml.Name `xml:"xml"`
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Appid string `xml:"appid"`
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MchId string `xml:"mch_id"`
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DeviceInfo string `xml:"device_info"`
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NonceStr string `xml:"nonce_str"`
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Sign string `xml:"sign"`
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Body string `xml:"body"`
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OutTradeNo string `xml:"out_trade_no"`
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TotalFee int `xml:"total_fee"`
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SpbillCreateIp string `xml:"spbill_create_ip"`
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AuthCode string `xml:"auth_code"`
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}
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//支付结果
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type PayReturnXml 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"`
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MchId string `xml:"mch_id"`
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DeviceInfo string `xml:"device_info"`
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NonceStr string `xml:"nonce_str"`
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Sign string `xml:"sign"`
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ResultCode string `xml:"result_code"`
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ErrCode string `xml:"err_code"`
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ErrCodeDes string `xml:"err_code_des"`
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Openid string `xml:"openid"`
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IsSubscribe string `xml:"is_subscribe"`
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TradeType string `xml:"trade_type"`
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BankType string `xml:"bank_type"`
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FeeType string `xml:"fee_type"`
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TotalFee string `xml:"total_fee"`
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SettlementTotalFee string `xml:"settlement_total_fee"`
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CouponFee string `xml:"coupon_fee"`
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CashFeeType string `xml:"cash_fee_type"`
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CashFee string `xml:"cash_fee"`
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TransactionId string `xml:"transaction_id"`
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OutTradeNo string `xml:"out_trade_no"`
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Attach string `xml:"attach"`
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TimeEnd string `xml:"time_end"`
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PromotionDetail string `xml:"promotion_detail"`
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}
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//查询支付
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type QueryXml struct {
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XMLName xml.Name `xml:"xml"`
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Appid string `xml:"appid"`
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MchId string `xml:"mch_id"`
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OutTradeNo string `xml:"out_trade_no"`
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NonceStr string `xml:"nonce_str"`
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Sign string `xml:"sign"`
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}
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//查询结果
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type QueryReturnXml 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"`
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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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ResultCode string `xml:"result_code"`
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ErrCode string `xml:"err_code"`
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ErrCodeDes string `xml:"err_code_des"`
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DeviceInfo string `xml:"device_info"`
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Openid string `xml:"openid"`
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IsSubscribe string `xml:"is_subscribe"`
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TradeType string `xml:"trade_type"`
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TradeState string `xml:"trade_state"`
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BankType string `xml:"bank_type"`
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TotalFee string `xml:"total_fee"`
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SettlementTotalFee string `xml:"settlement_total_fee"`
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FeeType string `xml:"fee_type"`
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CashFee string `xml:"cash_fee"`
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CashFeeType string `xml:"cash_fee_type"`
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CouponFee string `xml:"coupon_fee"`
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CouponCount string `xml:"coupon_count"`
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TransactionId string `xml:"transaction_id"`
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OutTradeNo string `xml:"out_trade_no"`
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Attach string `xml:"attach"`
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TimeEnd string `xml:"time_end"`
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TradeStateDesc string `xml:"trade_state_desc"`
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}
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// 撤消
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type ReverseXml struct {
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XMLName xml.Name `xml:"xml"`
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Appid string `xml:"appid"`
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MchId string `xml:"mch_id"`
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OutTradeNo string `xml:"out_trade_no"`
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NonceStr string `xml:"nonce_str"`
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Sign string `xml:"sign"`
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}
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//撤消结果
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type ReverseReturnXml 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"`
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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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ResultCode string `xml:"result_code"`
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ErrCode string `xml:"err_code"`
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ErrCodeDes string `xml:"err_code_des"`
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Recall string `xml:"recall"`
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}
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/**
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* 微信二维码支付
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* 2022/02/07
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* @param device_info 设备号
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* @param body 商品描述
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* @param out_trade_no 商户订单号
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* @param total_fee 订单金额
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* @param auth_code 付款码
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*/
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func MicroPay(appid, mchid, mch_key, device_info, body, out_trade_no, auth_code, total_fee string) (PayReturnXml, error) {
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log.Println("wechat micropay")
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var requestxml PayXml
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var retXml PayReturnXml
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requestxml.Appid = appid
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requestxml.MchId = mchid
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requestxml.DeviceInfo = device_info
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requestxml.NonceStr = helper.GetRandomString(30)
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requestxml.Body = body
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requestxml.OutTradeNo = out_trade_no
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requestxml.TotalFee = helper.ToInt(helper.FloatMul(total_fee, 100))
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requestxml.SpbillCreateIp = network.GetLocalIp()
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requestxml.AuthCode = auth_code
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signStr := helper.StringJoin("appid=", requestxml.Appid, "&auth_code=", requestxml.AuthCode,
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"&body=", requestxml.Body, "&device_info=", requestxml.DeviceInfo,
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"&mch_id=", requestxml.MchId, "&nonce_str=", requestxml.NonceStr,
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"&out_trade_no=", requestxml.OutTradeNo, "&spbill_create_ip=", requestxml.SpbillCreateIp,
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"&total_fee=", helper.ToString(requestxml.TotalFee), "&key=", mch_key)
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signMd5 := Md5Str(signStr)
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requestxml.Sign = strings.ToUpper(signMd5)
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reqXmlJson, err := xml.Marshal(requestxml)
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log.Println(requestxml, string(reqXmlJson), err)
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url := "https://api.mch.weixin.qq.com/pay/micropay"
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ret, err := network.SendXml("POST", url, requestxml)
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log.Println("wechat micropay pay result:", string(ret), err)
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if err != nil {
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log.Println("Err:", err)
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return retXml, errors.New("微信支付失败，请检查网络")
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}
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err = xml.Unmarshal(ret, &retXml)
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if err != nil {
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log.Println("xml Unmarshal Err:", retXml, err)
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return retXml, errors.New("未知的支付结果")
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}
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if retXml.ResultCode == "SUCCESS" {
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retMap := XmlStructToMap(retXml)
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//验证sign
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signStr = helper.HttpBuildQuery(retMap) + "&key=" + mch_key
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sign := strings.ToUpper(Md5Str(signStr))
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if sign != retXml.Sign {
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log.Println("Err:签名错误", string(ret), sign)
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return retXml, errors.New("支付结果签名错误")
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}
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} else {
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return retXml, errors.New(retXml.ReturnMsg)
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}
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return retXml, nil
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}
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func MicroPayQuery(appid, mchid, out_trade_no, mch_key string) (QueryReturnXml, error) {
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log.Println("wechat micropay query", out_trade_no)
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var requestxml QueryXml
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var retXml QueryReturnXml
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requestxml.Appid = appid
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requestxml.MchId = mchid
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requestxml.NonceStr = helper.GetRandomString(30)
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requestxml.OutTradeNo = out_trade_no
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signStr := helper.StringJoin("appid=", requestxml.Appid,
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"&mch_id=", requestxml.MchId, "&nonce_str=", requestxml.NonceStr,
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"&out_trade_no=", requestxml.OutTradeNo, "&key=", mch_key)
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signMd5 := Md5Str(signStr)
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requestxml.Sign = strings.ToUpper(signMd5)
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url := "https://api.mch.weixin.qq.com/pay/orderquery"
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ret, err := network.SendXml("POST", url, requestxml)
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if err != nil {
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log.Println("Err:", err)
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return retXml, errors.New("微信支付失败，请检查网络")
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}
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err = xml.Unmarshal(ret, &retXml)
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if err != nil {
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log.Println("xml Unmarshal Err:", retXml, err)
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return retXml, errors.New("未知的支付结果")
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}
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if retXml.ReturnCode == "SUCCESS" {
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retMap := XmlStructToMap(retXml)
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//验证sign
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signStr = helper.HttpBuildQuery(retMap) + "&key=" + mch_key
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sign := strings.ToUpper(Md5Str(signStr))
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if sign != retXml.Sign {
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log.Println("Err:签名错误", string(ret), sign)
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return retXml, errors.New("查询支付结果签名错误")
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}
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} else {
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return retXml, errors.New(retXml.ReturnMsg)
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}
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return retXml, nil
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}
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/**
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* 撤消订单
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* 2023/06/13
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*/
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func MicroPayReverse(appid, mchid, out_trade_no, mch_key string) (ReverseReturnXml, error) {
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log.Println("wechat micropay reverse", out_trade_no)
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var requestxml ReverseXml
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var retXml ReverseReturnXml
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requestxml.Appid = appid
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requestxml.MchId = mchid
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requestxml.NonceStr = helper.GetRandomString(30)
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requestxml.OutTradeNo = out_trade_no
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signStr := helper.StringJoin("appid=", requestxml.Appid,
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"&mch_id=", requestxml.MchId, "&nonce_str=", requestxml.NonceStr,
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"&out_trade_no=", requestxml.OutTradeNo, "&key=", mch_key)
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signMd5 := Md5Str(signStr)
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requestxml.Sign = strings.ToUpper(signMd5)
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url := "https://api.mch.weixin.qq.com/secapi/pay/reverse"
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ret, err := network.SendXml("POST", url, requestxml)
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if err != nil {
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log.Println("Err:", err)
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return retXml, errors.New("撤消微信支付失败，请检查网络")
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}
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err = xml.Unmarshal(ret, &retXml)
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if err != nil {
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log.Println("xml Unmarshal Err:", retXml, err)
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return retXml, errors.New("未知的撤消结果")
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}
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if retXml.ReturnCode == "SUCCESS" {
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retMap := XmlStructToMap(retXml)
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//验证sign
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signStr = helper.HttpBuildQuery(retMap) + "&key=" + mch_key
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sign := strings.ToUpper(Md5Str(signStr))
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if sign != retXml.Sign {
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log.Println("Err:签名错误", string(ret), sign)
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return retXml, errors.New("查询支付结果签名错误")
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}
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} else {
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return retXml, errors.New(retXml.ReturnMsg)
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}
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return retXml, nil
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}
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func XmlStructToMap(retXml interface{}) map[string]string {
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t := reflect.TypeOf(retXml)
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v := reflect.ValueOf(retXml)
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//转为map，验签
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retMap := make(map[string]string)
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var retValue string
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var tag string
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for k := 0; k < t.NumField(); k++ {
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if t.Field(k).Name != "Sign" {
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retValue = helper.ToString(v.Field(k).Interface())
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tag = fmt.Sprintf("%s", t.Field(k).Tag)
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tag = strings.ReplaceAll(tag, "xml:", "")
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tag = strings.ReplaceAll(tag, "\"", "")
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retMap[tag] = retValue
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}
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}
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return retMap
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}
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