navidrome/server/middlewares.go

package server

import (
	"fmt"
	"net/http"
	"time"

	"github.com/deluan/navidrome/log"
	"github.com/go-chi/chi/middleware"
)

func RequestLogger(next http.Handler) http.Handler {
	return http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
		scheme := "http"
		if r.TLS != nil {
			scheme = "https"
		}

		start := time.Now()
		ww := middleware.NewWrapResponseWriter(w, r.ProtoMajor)
		next.ServeHTTP(ww, r)
		status := ww.Status()

		message := fmt.Sprintf("HTTP: %s %s://%s%s", r.Method, scheme, r.Host, r.RequestURI)
		logArgs := []interface{}{
			r.Context(),
			message,
			"remoteAddr", r.RemoteAddr,
			"elapsedTime", time.Since(start),
			"httpStatus", ww.Status(),
			"responseSize", ww.BytesWritten(),
		}
		if log.CurrentLevel() >= log.LevelDebug {
			logArgs = append(logArgs, "userAgent", r.UserAgent())
		}

		switch {
		case status >= 500:
			log.Error(logArgs...)
		case status >= 400:
			log.Warn(logArgs...)
		default:
			if log.CurrentLevel() >= log.LevelDebug {
				log.Debug(logArgs...)
			} else {
				log.Info(logArgs...)
			}
		}
	})
}