added an function to graceful shut down the server.

http.go

@@ -1,8 +1,10 @@
 package httpserver
 
 import (
+	"context"
 	"crypto/tls"
 	"net/http"
+	"time"
 
 	"github.com/gin-gonic/gin"
 	"github.com/pelletier/go-toml"
@@ -91,6 +93,15 @@ func (s *Server) UseAuthBackend(a auth.AuthenticationHandler) {
 	s.authhf = a
 }
 
+// Stop Shuts the Server down
+func (s *Server) Stop() {
+	ctx, _ := context.WithDeadline(context.Background(), time.Now().Add(time.Second*5))
+	go func() {
+		log.Info().Err(s.http.Shutdown(ctx)).Msg("Server Shut down.")
+	}()
+	<-ctx.Done()
+}
+
 // Site is an Interface to abstract the modularized group of pages.
 // The Middleware must be able to detect multiple calls byy itself. Deduplication is not performed.
 type Site interface {