fix middleware tracer and cloudflareRealIP

internal/net/http/middleware/tracer.go

@@ -9,41 +9,53 @@ import (
 )
 
 type Tracer struct {
-	name   string
-	parent *Tracer
+	name    string
+	enabled bool
 }
 
-func (t *Tracer) Fullname() string {
-	if t.parent != nil {
-		return t.parent.Fullname() + "." + t.name
+func _() {
+	var _ MiddlewareWithTracer = &Tracer{}
+}
+
+func (t *Tracer) enableTrace() {
+	t.enabled = true
+}
+
+func (t *Tracer) getTracer() *Tracer {
+	return t
+}
+
+func (t *Tracer) SetParent(parent *Tracer) {
+	if parent == nil {
+		return
 	}
-	return t.name
+	t.name = parent.name + "." + t.name
 }
 
 func (t *Tracer) addTrace(msg string) *Trace {
 	return addTrace(&Trace{
 		Time:    strutils.FormatTime(time.Now()),
-		Caller:  t.Fullname(),
+		Caller:  t.name,
 		Message: msg,
 	})
 }
 
 func (t *Tracer) AddTracef(msg string, args ...any) *Trace {
-	if t == nil {
+	if !t.enabled {
 		return nil
 	}
 	return t.addTrace(fmt.Sprintf(msg, args...))
 }
 
 func (t *Tracer) AddTraceRequest(msg string, req *http.Request) *Trace {
-	if t == nil {
+	if !t.enabled {
 		return nil
 	}
 	return t.addTrace(msg).WithRequest(req)
 }
 
 func (t *Tracer) AddTraceResponse(msg string, resp *http.Response) *Trace {
-	if t == nil {
+	if !t.enabled {
 		return nil
 	}
 	return t.addTrace(msg).WithResponse(resp)