add func VerifyAliPayResultSign

alipay_server_api.go

@@ -5,7 +5,85 @@
 //==================================
 package gopay
 
-import "bytes"
+import (
+	"bytes"
+	"encoding/json"
+	"fmt"
+	"net/http"
+)
+
+//解析支付宝支付完成后的Notify信息
+func ParseAliPayNotifyResult(req *http.Request) (notifyRsp *AliPayNotifyRequest, err error) {
+	notifyRsp = new(AliPayNotifyRequest)
+	defer req.Body.Close()
+	err = json.NewDecoder(req.Body).Decode(notifyRsp)
+	if err != nil {
+		return nil, err
+	}
+	return
+}
+
+//支付通知的签名验证和参数签名后的Sign
+//    alipayPublickKey：支付宝公钥
+//    notifyRsp：利用 gopay.ParseAliPayNotifyResult() 得到的结构体
+//    返回参数ok：是否验证通过
+//    返回参数sign：根据参数计算的sign值，非支付宝返回参数中的Sign
+func VerifyAliPayResultSign(alipayPublickKey string, notifyRsp *AliPayNotifyRequest) (ok bool, sign string) {
+	body := make(BodyMap)
+	body.Set("notify_time", notifyRsp.NotifyTime)
+	body.Set("notify_type", notifyRsp.NotifyType)
+	body.Set("notify_id", notifyRsp.NotifyId)
+	body.Set("app_id", notifyRsp.AppId)
+	body.Set("charset", notifyRsp.Charset)
+	body.Set("version", notifyRsp.Version)
+	body.Set("trade_no", notifyRsp.TradeNo)
+	body.Set("out_trade_no", notifyRsp.OutTradeNo)
+	body.Set("out_biz_no", notifyRsp.OutBizNo)
+	body.Set("buyer_id", notifyRsp.BuyerId)
+	body.Set("buyer_logon_id", notifyRsp.BuyerLogonId)
+	body.Set("seller_id", notifyRsp.SellerId)
+	body.Set("seller_email", notifyRsp.SellerEmail)
+	body.Set("trade_status", notifyRsp.TradeStatus)
+	body.Set("total_amount", notifyRsp.TotalAmount)
+	body.Set("receipt_amount", notifyRsp.ReceiptAmount)
+	body.Set("invoice_amount", notifyRsp.InvoiceAmount)
+	body.Set("buyer_pay_amount", notifyRsp.BuyerPayAmount)
+	body.Set("point_amount", notifyRsp.PointAmount)
+	body.Set("refund_fee", notifyRsp.RefundFee)
+	body.Set("subject", notifyRsp.Subject)
+	body.Set("body", notifyRsp.Body)
+	body.Set("gmt_create", notifyRsp.GmtCreate)
+	body.Set("gmt_payment", notifyRsp.GmtPayment)
+	body.Set("gmt_refund", notifyRsp.GmtRefund)
+	body.Set("gmt_close", notifyRsp.GmtClose)
+	body.Set("fund_bill_list", jsonToString(notifyRsp.FundBillList))
+	body.Set("passback_params", notifyRsp.PassbackParams)
+	body.Set("voucher_detail_list", jsonToString(notifyRsp.VoucherDetailList))
+
+	newBody := make(BodyMap)
+	for k, v := range body {
+		if v != null {
+			newBody.Set(k, v)
+		}
+	}
+
+	sign, err := getRsaSign(newBody, alipayPublickKey)
+	if err != nil {
+		return false, ""
+	}
+	ok = sign == notifyRsp.Sign
+	return
+}
+
+func jsonToString(v interface{}) (str string) {
+	bs, err := json.Marshal(v)
+	if err != nil {
+		fmt.Println("err:", err)
+		return ""
+	}
+	//log.Println("string:", string(bs))
+	return string(bs)
+}
 
 //格式化秘钥
 func FormatPrivateKey(privateKey string) (pKey string) {