func()

in logging_handler.go [120:160]

• 36 lines of code
• 8 McCabe index (conditional complexity)

func (h loggingHandler) writeLogLine(username, upstream string, req *http.Request, url url.URL, ts time.Time, status int, size int) {
	if username == "" {
		username = "-"
	}
	if upstream == "" {
		upstream = "-"
	}
	if url.User != nil && username == "-" {
		if name := url.User.Username(); name != "" {
			username = name
		}
	}

	client := req.Header.Get("X-Real-IP")
	if client == "" {
		client = req.RemoteAddr
	}

	if c, _, err := net.SplitHostPort(client); err == nil {
		client = c
	}

	duration := float64(time.Now().Sub(ts)) / float64(time.Second)

	h.logTemplate.Execute(h.writer, logMessageData{
		Client:          client,
		Host:            req.Host,
		Protocol:        req.Proto,
		RequestDuration: fmt.Sprintf("%0.3f", duration),
		RequestMethod:   req.Method,
		RequestURI:      fmt.Sprintf("%q", url.RequestURI()),
		ResponseSize:    fmt.Sprintf("%d", size),
		StatusCode:      fmt.Sprintf("%d", status),
		Timestamp:       ts.Format("02/Jan/2006:15:04:05 -0700"),
		Upstream:        upstream,
		UserAgent:       fmt.Sprintf("%q", req.UserAgent()),
		Username:        username,
	})

	h.writer.Write([]byte("\n"))
}