func()

in pkg/sidecar/dnsprobe.go [162:199]

• 34 lines of code
• 4 McCabe index (conditional complexity)

func (p *dnsProbe) httpHandler(w http.ResponseWriter, r *http.Request) {
	p.lock.Lock()
	defer p.lock.Unlock()

	response := struct {
		IsOk           bool
		LatencySeconds float64
		Err            string
	}{}

	if p.lastError == nil {
		response.IsOk = true
		response.LatencySeconds = p.lastResolveLatency.Seconds()

		if buf, err := json.Marshal(response); err == nil {
			w.Header().Add("Content-Type", "application/json")
			w.WriteHeader(http.StatusOK)
			w.Write(buf)
		} else {
			klog.Errorf("JSON Marshal error: %v", err)
			w.WriteHeader(http.StatusInternalServerError)
			w.Write(([]byte)(fmt.Sprintf("Error: %v", err)))
		}
	} else {
		response.IsOk = false
		response.Err = p.lastError.Error()

		if buf, err := json.Marshal(response); err == nil {
			w.Header().Add("Content-Type", "application/json")
			w.WriteHeader(http.StatusServiceUnavailable)
			w.Write(buf)
		} else {
			klog.Errorf("JSON Marshal error: %v", err)
			w.WriteHeader(http.StatusInternalServerError)
			w.Write(([]byte)(fmt.Sprintf("Error: %v", err)))
		}
	}
}