497 lines
19 KiB
Go
497 lines
19 KiB
Go
package callback
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import (
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"context"
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"fmt"
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"net/http"
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"net/url"
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"strconv"
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"strings"
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"github.com/gofiber/fiber/v2"
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"github.com/valyala/fasthttp/fasthttpadaptor"
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"go.uber.org/zap"
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"github.com/break/junhong_cmp_fiber/internal/model"
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orderService "github.com/break/junhong_cmp_fiber/internal/service/order"
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rechargeService "github.com/break/junhong_cmp_fiber/internal/service/recharge"
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rechargeOrderSvc "github.com/break/junhong_cmp_fiber/internal/service/recharge_order"
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"github.com/break/junhong_cmp_fiber/internal/store/postgres"
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"github.com/break/junhong_cmp_fiber/pkg/alipay"
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"github.com/break/junhong_cmp_fiber/pkg/constants"
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"github.com/break/junhong_cmp_fiber/pkg/errors"
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"github.com/break/junhong_cmp_fiber/pkg/fuiou"
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"github.com/break/junhong_cmp_fiber/pkg/wechat"
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"gorm.io/gorm"
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)
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// AgentRechargeServiceInterface 代理充值服务接口
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type AgentRechargeServiceInterface interface {
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HandlePaymentCallback(ctx context.Context, rechargeNo string, paymentMethod string, paymentTransactionID string) error
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}
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// WechatConfigServiceInterface 支付配置服务接口
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type WechatConfigServiceInterface interface {
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GetActiveConfig(ctx context.Context) (*model.WechatConfig, error)
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GetConfigForCallback(ctx context.Context, orderNo string) (*model.WechatConfig, error)
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}
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type PaymentHandler struct {
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orderService *orderService.Service
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rechargeService *rechargeService.Service
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rechargeOrderService *rechargeOrderSvc.Service
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agentRechargeService AgentRechargeServiceInterface
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wechatPayment wechat.PaymentServiceInterface
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wechatConfigService WechatConfigServiceInterface
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paymentStore *postgres.PaymentStore
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logger *zap.Logger
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}
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func NewPaymentHandler(
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orderService *orderService.Service,
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rechargeService *rechargeService.Service,
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rechargeOrderService *rechargeOrderSvc.Service,
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agentRechargeService AgentRechargeServiceInterface,
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wechatPayment wechat.PaymentServiceInterface,
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wechatConfigService WechatConfigServiceInterface,
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paymentStore *postgres.PaymentStore,
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logger *zap.Logger,
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) *PaymentHandler {
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return &PaymentHandler{
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orderService: orderService,
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rechargeService: rechargeService,
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rechargeOrderService: rechargeOrderService,
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agentRechargeService: agentRechargeService,
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wechatPayment: wechatPayment,
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wechatConfigService: wechatConfigService,
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paymentStore: paymentStore,
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logger: logger,
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}
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}
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// WechatPayCallback 微信支付回调（带签名验证）
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// POST /api/callback/wechat-pay
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func (h *PaymentHandler) WechatPayCallback(c *fiber.Ctx) error {
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body := c.Body()
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ctx := context.Background()
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// 预解析订单号（不验签），用于按 payment_config_id 加载创建订单时所用的配置
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orderNo, err := wechat.PeekOrderNo(body)
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if err != nil {
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h.logger.Error("微信回调：预解析订单号失败", zap.Error(err))
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return errors.New(errors.CodeWechatCallbackInvalid, "回调数据格式错误")
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}
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cfg, err := h.wechatConfigService.GetConfigForCallback(ctx, orderNo)
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if err != nil || cfg == nil {
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h.logger.Error("微信回调：加载支付配置失败",
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zap.String("order_no", orderNo),
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zap.Error(err),
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)
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return errors.New(errors.CodeWechatCallbackInvalid, "微信支付服务未配置")
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}
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switch cfg.ProviderType {
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case model.ProviderTypeWechatV2:
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paymentSvc := wechat.NewPaymentV2Service(cfg.OaAppID, cfg.WxMchID, cfg.WxAPIV2Key, cfg.WxNotifyURL, h.logger)
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result, err := paymentSvc.VerifyCallback(body)
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if err != nil {
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return errors.Wrap(errors.CodeWechatCallbackInvalid, err, "微信 v2 回调验签失败")
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}
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if result.TradeState != "SUCCESS" {
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return h.wechatV2SuccessResponse(c)
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}
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// TotalFee 为字符串格式的分，解析失败则降级为 0（后续 handlePaymentCallback 会记录日志）
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totalFee, _ := strconv.ParseInt(result.TotalFee, 10, 64)
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if err := h.dispatchWechatCallback(ctx, result.OutTradeNo, result.TransactionID, totalFee); err != nil {
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return errors.Wrap(errors.CodeWechatCallbackInvalid, err, "处理微信支付回调失败")
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}
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case model.ProviderTypeWechat:
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if h.wechatPayment == nil {
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return errors.New(errors.CodeWechatCallbackInvalid, "微信 v3 支付未初始化")
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}
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var httpReq http.Request
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fasthttpadaptor.ConvertRequest(c.Context(), &httpReq, true)
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_, err := h.wechatPayment.HandlePaymentNotify(&httpReq, func(result *wechat.PaymentNotifyResult) error {
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if result.TradeState != "SUCCESS" {
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return nil
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}
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return h.dispatchWechatCallback(ctx, result.OutTradeNo, result.TransactionID, result.TotalAmount)
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})
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if err != nil {
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return errors.Wrap(errors.CodeWechatCallbackInvalid, err, "处理微信支付回调失败")
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}
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default:
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return errors.New(errors.CodeWechatCallbackInvalid, "不支持的支付渠道类型")
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}
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return h.wechatV2SuccessResponse(c)
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}
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func (h *PaymentHandler) dispatchPaymentRecordCallback(ctx context.Context, paymentNo, paymentMethod, transactionID string, paidAmount int64) (bool, error) {
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if h.paymentStore != nil {
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payment, err := h.paymentStore.GetByPaymentNo(ctx, paymentNo)
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if err == nil {
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switch payment.OrderType {
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case model.PaymentOrderTypePackage:
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return true, h.orderService.HandlePaymentRecordCallback(ctx, paymentNo, paymentMethod, transactionID, paidAmount)
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case model.PaymentOrderTypeRecharge:
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if h.rechargeOrderService != nil {
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return true, h.rechargeOrderService.HandlePaymentCallback(ctx, paymentNo, paymentMethod, transactionID)
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}
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return true, fmt.Errorf("充值订单服务未配置，无法处理支付单: %s", paymentNo)
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default:
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return true, fmt.Errorf("未知支付记录类型: %s", payment.OrderType)
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}
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}
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if err != gorm.ErrRecordNotFound {
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return true, errors.Wrap(errors.CodeDatabaseError, err, "查询支付记录失败")
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}
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}
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return false, nil
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}
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// dispatchWechatCallback 优先按支付单分发，旧单号继续按前缀兼容处理。
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func (h *PaymentHandler) dispatchWechatCallback(ctx context.Context, outTradeNo, transactionID string, paidAmount int64) error {
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handled, err := h.dispatchPaymentRecordCallback(ctx, outTradeNo, model.PaymentMethodWechat, transactionID, paidAmount)
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if handled || err != nil {
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return err
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}
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switch {
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case strings.HasPrefix(outTradeNo, "ORD"):
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return h.orderService.HandlePaymentCallback(ctx, outTradeNo, model.PaymentMethodWechat, paidAmount)
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case strings.HasPrefix(outTradeNo, constants.AssetRechargeOrderPrefix):
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if h.rechargeOrderService != nil {
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return h.rechargeOrderService.HandlePaymentCallback(ctx, outTradeNo, model.PaymentByWechat, transactionID)
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}
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return fmt.Errorf("充值订单服务未配置，无法处理订单: %s", outTradeNo)
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case strings.HasPrefix(outTradeNo, constants.AgentRechargeOrderPrefix):
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if h.agentRechargeService != nil {
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return h.agentRechargeService.HandlePaymentCallback(ctx, outTradeNo, model.PaymentMethodWechat, transactionID)
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}
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return fmt.Errorf("代理充值服务未配置，无法处理订单: %s", outTradeNo)
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default:
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return fmt.Errorf("未知订单号前缀: %s", outTradeNo)
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}
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}
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// wechatV2SuccessResponse 返回微信 v2 要求的 XML 格式成功响应
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// v2 API 要求 XML 格式的 return_code=SUCCESS，否则微信会持续重试回调
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func (h *PaymentHandler) wechatV2SuccessResponse(c *fiber.Ctx) error {
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c.Set("Content-Type", "text/xml; charset=utf-8")
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return c.SendString(`<xml><return_code><![CDATA[SUCCESS]]></return_code><return_msg><![CDATA[OK]]></return_msg></xml>`)
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}
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// AlipayCallback 支付宝异步回调（带验签与多维度安全校验）
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// POST /api/callback/alipay
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func (h *PaymentHandler) AlipayCallback(c *fiber.Ctx) error {
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ctx := c.UserContext()
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// 从原始请求体解析 form 参数（x-www-form-urlencoded）
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values, err := url.ParseQuery(string(c.Body()))
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if err != nil {
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h.logger.Error("支付宝回调：解析 form 参数失败", zap.Error(err))
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return errors.New(errors.CodeInvalidParam, "回调数据格式错误")
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}
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// 未验签前只读取 out_trade_no，用于回溯创建支付单时所用的配置
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outTradeNo := values.Get("out_trade_no")
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if outTradeNo == "" {
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h.logger.Error("支付宝回调：out_trade_no 为空")
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return errors.New(errors.CodeInvalidParam, "订单号不能为空")
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}
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// 按 payment_config_id 加载创建支付单时所用的配置（支持已停用配置）
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cfg, err := h.wechatConfigService.GetConfigForCallback(ctx, outTradeNo)
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if err != nil || cfg == nil {
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h.logger.Error("支付宝回调：加载支付配置失败",
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zap.String("out_trade_no", outTradeNo),
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zap.Error(err),
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)
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return errors.New(errors.CodeWechatCallbackInvalid, "支付配置不可用")
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}
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// 使用支付宝公钥验签（DecodeNotification 内部完成签名校验）
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notification, err := alipay.DecodeNotification(ctx, cfg, values)
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if err != nil {
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h.logger.Error("支付宝回调：验签失败",
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zap.String("out_trade_no", outTradeNo),
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zap.Uint("config_id", cfg.ID),
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zap.Error(err),
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)
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return errors.New(errors.CodeWechatCallbackInvalid, "支付宝回调验签失败")
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}
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// 校验 app_id 与配置一致，防止跨商户混用
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if notification.AppId != cfg.AliAppID {
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h.logger.Error("支付宝回调：app_id 不匹配",
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zap.String("out_trade_no", outTradeNo),
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zap.String("notify_app_id", notification.AppId),
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zap.String("config_app_id", cfg.AliAppID),
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)
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return errors.New(errors.CodeWechatCallbackInvalid, "支付宝 app_id 校验失败")
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}
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// 非终态交易（如 WAIT_BUYER_PAY、TRADE_CLOSED）直接返回 success，不推进业务
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tradeStatus := string(notification.TradeStatus)
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if tradeStatus != "TRADE_SUCCESS" && tradeStatus != "TRADE_FINISHED" {
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h.logger.Info("支付宝回调：非成功交易状态，忽略",
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zap.String("out_trade_no", outTradeNo),
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zap.String("trade_status", tradeStatus),
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)
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return c.SendString("success")
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}
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// 查询支付记录
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payment, err := h.paymentStore.GetByPaymentNo(ctx, outTradeNo)
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if err != nil {
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if err == gorm.ErrRecordNotFound {
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h.logger.Error("支付宝回调：支付记录不存在",
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zap.String("out_trade_no", outTradeNo),
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)
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return errors.New(errors.CodeWechatCallbackInvalid, "支付记录不存在")
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}
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h.logger.Error("支付宝回调：查询支付记录失败",
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zap.String("out_trade_no", outTradeNo),
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zap.Error(err),
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)
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return errors.Wrap(errors.CodeDatabaseError, err, "查询支付记录失败")
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}
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// 校验支付方式必须为 alipay，防止其他通道的 payment_no 被误用
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if payment.PaymentMethod != model.PaymentByAlipay {
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h.logger.Error("支付宝回调：支付方式不匹配",
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zap.String("out_trade_no", outTradeNo),
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zap.String("payment_method", payment.PaymentMethod),
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)
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return errors.New(errors.CodeWechatCallbackInvalid, "支付通道校验失败")
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}
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// 校验 payment_config_id 与当前配置一致；旧数据为空时兼容并记录 warn
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if payment.PaymentConfigID == nil {
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h.logger.Warn("支付宝回调：payment_config_id 为空，跳过配置 ID 校验（旧数据兼容）",
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zap.String("out_trade_no", outTradeNo),
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zap.Uint("config_id", cfg.ID),
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)
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} else if *payment.PaymentConfigID != cfg.ID {
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h.logger.Error("支付宝回调：payment_config_id 不匹配",
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zap.String("out_trade_no", outTradeNo),
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zap.Uint("payment_config_id", *payment.PaymentConfigID),
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zap.Uint("callback_config_id", cfg.ID),
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)
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return errors.New(errors.CodeWechatCallbackInvalid, "支付配置 ID 校验失败")
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}
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// 校验金额：使用 total_amount（原始订单金额）而非 buyer_pay_amount，
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// 避免优惠券/积分场景导致内部订单金额被错误记低
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notifyAmountFen, err := alipay.YuanToFen(notification.TotalAmount)
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if err != nil {
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h.logger.Error("支付宝回调：total_amount 转换失败",
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zap.String("out_trade_no", outTradeNo),
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zap.String("total_amount", notification.TotalAmount),
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zap.Error(err),
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)
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return errors.New(errors.CodeWechatCallbackInvalid, "支付金额格式错误")
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}
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if notifyAmountFen != payment.Amount {
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h.logger.Error("支付宝回调：金额不一致",
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zap.String("out_trade_no", outTradeNo),
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zap.Int64("notify_amount_fen", notifyAmountFen),
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zap.Int64("payment_amount_fen", payment.Amount),
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)
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return errors.New(errors.CodeWechatCallbackInvalid, "支付金额校验失败")
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}
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// 写入支付宝交易流水号
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if err := h.paymentStore.UpdatePaymentInfo(ctx, payment.ID, notification.TradeNo, nil); err != nil {
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h.logger.Error("支付宝回调：写入 third_party_trade_no 失败",
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zap.String("out_trade_no", outTradeNo),
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zap.String("trade_no", notification.TradeNo),
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zap.Error(err),
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)
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// 不中断业务，继续分发（幂等业务层会处理状态）
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}
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// 按支付单 order_type 分发业务
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switch payment.OrderType {
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case model.PaymentOrderTypePackage:
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if err := h.orderService.HandlePaymentRecordCallback(ctx, outTradeNo, model.PaymentByAlipay, notification.TradeNo, payment.Amount); err != nil {
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h.logger.Error("支付宝回调：推进套餐订单失败",
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zap.String("out_trade_no", outTradeNo),
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zap.String("trade_no", notification.TradeNo),
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zap.Error(err),
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)
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return errors.Wrap(errors.CodeInternalError, err, "处理支付宝支付回调失败")
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}
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h.logger.Info("支付宝回调：套餐订单支付成功",
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zap.String("out_trade_no", outTradeNo),
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zap.String("trade_no", notification.TradeNo),
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zap.String("order_type", payment.OrderType),
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)
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case model.PaymentOrderTypeRecharge:
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if h.rechargeOrderService == nil {
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h.logger.Error("支付宝回调：充值订单服务未配置",
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zap.String("out_trade_no", outTradeNo),
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)
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return errors.New(errors.CodeInternalError, "充值订单服务未配置")
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}
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if err := h.rechargeOrderService.HandlePaymentCallback(ctx, outTradeNo, model.PaymentByAlipay, notification.TradeNo); err != nil {
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h.logger.Error("支付宝回调：推进充值订单失败",
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zap.String("out_trade_no", outTradeNo),
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zap.String("trade_no", notification.TradeNo),
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zap.Error(err),
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)
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return errors.Wrap(errors.CodeInternalError, err, "处理支付宝充值回调失败")
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}
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h.logger.Info("支付宝回调：充值订单支付成功",
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zap.String("out_trade_no", outTradeNo),
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zap.String("trade_no", notification.TradeNo),
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zap.String("order_type", payment.OrderType),
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)
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default:
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h.logger.Error("支付宝回调：未知支付记录类型",
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zap.String("out_trade_no", outTradeNo),
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zap.String("order_type", payment.OrderType),
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)
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return errors.New(errors.CodeInternalError, "未知支付记录类型")
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}
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return c.SendString("success")
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}
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// FuiouPayCallback 富友支付回调（带签名验证）
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// POST /api/callback/fuiou-pay
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func (h *PaymentHandler) FuiouPayCallback(c *fiber.Ctx) error {
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body, bodySource := fuiouCallbackPayload(c)
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if strings.TrimSpace(string(body)) == "" {
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return errors.New(errors.CodeFuiouCallbackInvalid, "回调请求体为空")
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}
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ctx := c.UserContext()
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c.Set("Content-Type", "text/plain; charset=utf-8")
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// 预解析订单号（不验签），用于按 payment_config_id 加载创建订单时所用的配置
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preNotify, err := fuiou.ParseNotify(body)
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if err != nil {
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h.logger.Error("富友回调：预解析失败",
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zap.Error(err),
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zap.String("payload_source", bodySource),
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zap.Int("raw_body_len", len(c.Body())),
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zap.Int("payload_len", len(body)),
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zap.String("content_type", c.Get("Content-Type")),
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zap.String("query", string(c.Request().URI().QueryString())),
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)
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return c.Send(fuiou.BuildNotifyFailResponse("parse failed"))
|
||
}
|
||
|
||
cfg, err := h.wechatConfigService.GetConfigForCallback(ctx, preNotify.MchntOrderNo)
|
||
if err != nil || cfg == nil {
|
||
h.logger.Error("富友回调：加载支付配置失败",
|
||
zap.String("order_no", preNotify.MchntOrderNo),
|
||
zap.Error(err),
|
||
)
|
||
return c.Send(fuiou.BuildNotifyFailResponse("payment config unavailable"))
|
||
}
|
||
if cfg.ProviderType != model.ProviderTypeFuiou ||
|
||
strings.TrimSpace(preNotify.InsCd) != strings.TrimSpace(cfg.FyInsCd) ||
|
||
strings.TrimSpace(preNotify.MchntCd) != strings.TrimSpace(cfg.FyMchntCd) {
|
||
h.logger.Error("富友回调：支付配置与回调商户不匹配",
|
||
zap.String("order_no", preNotify.MchntOrderNo),
|
||
zap.Uint("config_id", cfg.ID),
|
||
zap.String("config_name", cfg.Name),
|
||
zap.String("callback_ins_cd", preNotify.InsCd),
|
||
zap.String("config_ins_cd", cfg.FyInsCd),
|
||
zap.String("callback_mchnt_cd", preNotify.MchntCd),
|
||
zap.String("config_mchnt_cd", cfg.FyMchntCd),
|
||
zap.String("provider_type", cfg.ProviderType),
|
||
)
|
||
return c.Send(fuiou.BuildNotifyFailResponse("payment config mismatch"))
|
||
}
|
||
|
||
client, err := fuiou.NewClient(
|
||
cfg.FyInsCd,
|
||
cfg.FyMchntCd,
|
||
cfg.FyTermID,
|
||
cfg.FyAPIURL,
|
||
cfg.FyNotifyURL,
|
||
cfg.FyPrivateKey,
|
||
cfg.FyPublicKey,
|
||
h.logger,
|
||
)
|
||
if err != nil {
|
||
h.logger.Error("富友回调：构造客户端失败", zap.Error(err))
|
||
return c.Send(fuiou.BuildNotifyFailResponse("client init failed"))
|
||
}
|
||
|
||
notify, err := client.VerifyNotify(body)
|
||
if err != nil {
|
||
if notify != nil {
|
||
h.logger.Warn("富友回调：非成功结果",
|
||
zap.String("result_code", notify.ResultCode),
|
||
zap.String("result_msg", notify.ResultMsg))
|
||
return c.Send(fuiou.BuildNotifySuccessResponse())
|
||
}
|
||
h.logger.Error("富友回调：验签或解析失败",
|
||
zap.Error(err),
|
||
zap.String("order_no", preNotify.MchntOrderNo),
|
||
zap.Uint("config_id", cfg.ID),
|
||
zap.String("config_name", cfg.Name),
|
||
zap.String("callback_ins_cd", preNotify.InsCd),
|
||
zap.String("config_ins_cd", cfg.FyInsCd),
|
||
zap.String("callback_mchnt_cd", preNotify.MchntCd),
|
||
zap.String("config_mchnt_cd", cfg.FyMchntCd),
|
||
)
|
||
return c.Send(fuiou.BuildNotifyFailResponse(err.Error()))
|
||
}
|
||
|
||
orderNo := notify.MchntOrderNo
|
||
// OrderAmt 为字符串格式的分，解析失败则降级为 0
|
||
orderAmt, _ := strconv.ParseInt(notify.OrderAmt, 10, 64)
|
||
if handled, err := h.dispatchPaymentRecordCallback(ctx, orderNo, "fuiou", notify.TransactionId, orderAmt); err != nil {
|
||
return c.Send(fuiou.BuildNotifyFailResponse(err.Error()))
|
||
} else if handled {
|
||
return c.Send(fuiou.BuildNotifySuccessResponse())
|
||
}
|
||
|
||
switch {
|
||
case strings.HasPrefix(orderNo, "ORD"):
|
||
if err := h.orderService.HandlePaymentCallback(ctx, orderNo, "fuiou", orderAmt); err != nil {
|
||
return c.Send(fuiou.BuildNotifyFailResponse(err.Error()))
|
||
}
|
||
case strings.HasPrefix(orderNo, constants.AssetRechargeOrderPrefix):
|
||
if h.rechargeOrderService != nil {
|
||
if err := h.rechargeOrderService.HandlePaymentCallback(ctx, orderNo, "fuiou", notify.TransactionId); err != nil {
|
||
return c.Send(fuiou.BuildNotifyFailResponse(err.Error()))
|
||
}
|
||
return c.Send(fuiou.BuildNotifySuccessResponse())
|
||
}
|
||
return c.Send(fuiou.BuildNotifyFailResponse("充值订单服务未配置"))
|
||
case strings.HasPrefix(orderNo, constants.AgentRechargeOrderPrefix):
|
||
if h.agentRechargeService != nil {
|
||
if err := h.agentRechargeService.HandlePaymentCallback(ctx, orderNo, "fuiou", notify.TransactionId); err != nil {
|
||
return c.Send(fuiou.BuildNotifyFailResponse(err.Error()))
|
||
}
|
||
}
|
||
default:
|
||
return c.Send(fuiou.BuildNotifyFailResponse("unknown order prefix"))
|
||
}
|
||
|
||
return c.Send(fuiou.BuildNotifySuccessResponse())
|
||
}
|
||
|
||
// fuiouCallbackPayload 提取富友回调载荷，兼容 body、form req 和 query req 三种来源。
|
||
func fuiouCallbackPayload(c *fiber.Ctx) ([]byte, string) {
|
||
if req := strings.TrimSpace(c.FormValue("req")); req != "" {
|
||
return []byte(req), "form:req"
|
||
}
|
||
if req := strings.TrimSpace(c.Query("req")); req != "" {
|
||
return []byte(req), "query:req"
|
||
}
|
||
return c.Body(), "body"
|
||
}
|