switch to config file and implement src path filter

pkg/srv/plain.go

@@ -0,0 +1,47 @@
+// Copyright (C) 2022 Marius Schellenberger
+
+package srv
+
+import (
+	"net/http"
+	"strings"
+
+	"cachefs/pkg/fs"
+
+	"github.com/go-logr/logr"
+)
+
+type PlainServer struct {
+	log logr.Logger
+	fs  *fs.FS
+	h   http.Handler
+}
+
+func NewPlainServer(fs *fs.FS, log logr.Logger) http.Handler {
+	return &PlainServer{log, fs, http.FileServer(fs)}
+}
+
+func skipPlainLog(path string) bool {
+	return strings.HasSuffix(path, "favicon.ico")
+}
+
+func (ps *PlainServer) ServeHTTP(w http.ResponseWriter, r *http.Request) {
+	s := &statusInterceptor{w: w}
+	if !skipPlainLog(r.URL.Path) {
+		defer func() {
+			if s.Status() == http.StatusPartialContent {
+				return
+			}
+			ps.log.Info("access",
+				"client", r.RemoteAddr,
+				"method", r.Method,
+				"status", s.Status(),
+				"uri", r.URL.Path,
+			)
+		}()
+	}
+	r.Header.Del("If-Modified-Since")
+	r.Header.Del("Cache-Control")
+	ps.h.ServeHTTP(s, r)
+	w.Header().Del("Last-Modified")
+}