add handler recorder

handler/redirect/udp/handler.go

@@ -8,7 +8,12 @@ import (
 
 	"github.com/go-gost/core/handler"
 	md "github.com/go-gost/core/metadata"
+	"github.com/go-gost/core/recorder"
+	xbypass "github.com/go-gost/x/bypass"
+	ctxvalue "github.com/go-gost/x/ctx"
 	netpkg "github.com/go-gost/x/internal/net"
+	rate_limiter "github.com/go-gost/x/limiter/rate"
+	xrecorder "github.com/go-gost/x/recorder"
 	"github.com/go-gost/x/registry"
 )
 
@@ -17,8 +22,9 @@ func init() {
 }
 
 type redirectHandler struct {
-	md      metadata
-	options handler.Options
+	md       metadata
+	options  handler.Options
+	recorder recorder.RecorderObject
 }
 
 func NewHandler(opts ...handler.Option) handler.Handler {
@@ -37,30 +43,55 @@ func (h *redirectHandler) Init(md md.Metadata) (err error) {
 		return
 	}
 
+	for _, ro := range h.options.Recorders {
+		if ro.Record == xrecorder.RecorderServiceHandler {
+			h.recorder = ro
+			break
+		}
+	}
+
 	return
 }
 
-func (h *redirectHandler) Handle(ctx context.Context, conn net.Conn, opts ...handler.HandleOption) error {
+func (h *redirectHandler) Handle(ctx context.Context, conn net.Conn, opts ...handler.HandleOption) (err error) {
 	defer conn.Close()
 
 	start := time.Now()
+
+	ro := &xrecorder.HandlerRecorderObject{
+		Service:    h.options.Service,
+		RemoteAddr: conn.RemoteAddr().String(),
+		LocalAddr:  conn.LocalAddr().String(),
+		Time:       start,
+		SID:        string(ctxvalue.SidFromContext(ctx)),
+	}
+
 	log := h.options.Logger.WithFields(map[string]any{
 		"remote": conn.RemoteAddr().String(),
 		"local":  conn.LocalAddr().String(),
+		"sid":    ctxvalue.SidFromContext(ctx),
 	})
 
 	log.Infof("%s <> %s", conn.RemoteAddr(), conn.LocalAddr())
 	defer func() {
+		if err != nil {
+			ro.Err = err.Error()
+		}
+		ro.Duration = time.Since(start)
+		ro.Record(ctx, h.recorder.Recorder)
+
 		log.WithFields(map[string]any{
 			"duration": time.Since(start),
 		}).Infof("%s >< %s", conn.RemoteAddr(), conn.LocalAddr())
 	}()
 
 	if !h.checkRateLimit(conn.RemoteAddr()) {
-		return nil
+		return rate_limiter.ErrRateLimit
 	}
 
 	dstAddr := conn.LocalAddr()
+	ro.Network = dstAddr.Network()
+	ro.Host = dstAddr.String()
 
 	log = log.WithFields(map[string]any{
 		"dst": fmt.Sprintf("%s/%s", dstAddr, dstAddr.Network()),
@@ -70,7 +101,7 @@ func (h *redirectHandler) Handle(ctx context.Context, conn net.Conn, opts ...han
 
 	if h.options.Bypass != nil && h.options.Bypass.Contains(ctx, dstAddr.Network(), dstAddr.String()) {
 		log.Debug("bypass: ", dstAddr)
-		return nil
+		return xbypass.ErrBypass
 	}
 
 	cc, err := h.options.Router.Dial(ctx, dstAddr.Network(), dstAddr.String())