feat: update pay notify

backend/providers/wepay/pay.go

@@ -4,12 +4,16 @@ import (
 	"context"
 	"crypto/rsa"
 	"encoding/json"
+	"fmt"
+	"net/http"
 	"time"
 
 	w "quyun/providers/wechat"
 
 	"github.com/go-pay/gopay"
 	"github.com/go-pay/gopay/wechat/v3"
+	"github.com/go-pay/util/js"
+	"github.com/gofiber/fiber/v3"
 	"github.com/pkg/errors"
 	log "github.com/sirupsen/logrus"
 	"go.ipao.vip/atom/container"
@@ -101,6 +105,42 @@ func (c *Client) V3TransactionJsapi(ctx context.Context, f func(*BodyMap)) (*Pre
 	}, nil
 }
 
+func (c *Client) ParseNotify(ctx fiber.Ctx) (*PayNotify, error) {
+	body := ctx.Body()
+	si := &wechat.SignInfo{
+		HeaderTimestamp: ctx.Get(wechat.HeaderTimestamp),
+		HeaderNonce:     ctx.Get(wechat.HeaderNonce),
+		HeaderSignature: ctx.Get(wechat.HeaderSignature),
+		HeaderSerial:    ctx.Get(wechat.HeaderSerial),
+		SignBody:        string(body),
+	}
+	notifyReq := &wechat.V3NotifyReq{SignInfo: si}
+	if err := js.UnmarshalBytes(body, notifyReq); err != nil {
+		log.Errorf("json unmarshal error:%v", err)
+		return nil, ctx.Status(http.StatusBadRequest).JSON(fiber.Map{"error": fmt.Sprintf("json unmarshal error:%v", err)})
+	}
+
+	// 获取微信平台证书
+	certMap := c.WxPublicKeyMap()
+
+	// 验证异步通知的签名
+	err := notifyReq.VerifySignByPKMap(certMap)
+	if err != nil {
+		log.Errorf("verify sign error:%v", err)
+		return nil, ctx.Status(http.StatusBadRequest).JSON(fiber.Map{"error": "Invalid signature"})
+	}
+
+	var notifyData PayNotify
+	err = notifyReq.DecryptCipherTextToStruct(c.config.Pay.ApiV3Key, &notifyData)
+	if err != nil {
+		return nil, ctx.Status(http.StatusBadRequest).JSON(fiber.Map{"error": "Invalid cipher text"})
+	}
+
+	log.Infof("Successfully decrypted cipher text for notify data: %+v", notifyData)
+
+	return &notifyData, nil
+}
+
 type BodyMap struct {
 	bm gopay.BodyMap
 }