admin: introducing new page

main.go

@@ -91,6 +91,15 @@ func main() {
 		GetNextImage,
 	)))
 
+	mux.HandleFunc("/admin/", func(w http.ResponseWriter, r *http.Request) {
+		if authFunc(r) == nil {
+			w.Header().Set("WWW-Authenticate", "Basic realm=\"YouP0m Admin\"")
+			http.Error(w, "You are not allowed to perform this request.", http.StatusUnauthorized)
+		} else {
+			http.ServeFile(w, r, filepath.Join(staticDir, "admin.html"))
+		}
+	})
+
 	log.Println("Ready, listening on", *bind)
 	if err := http.ListenAndServe(*bind, mux); err != nil {
 		log.Fatal("Unable to listen and serve: ", err)