wip: share module

pkg/module/app/mount.go

@@ -73,7 +73,12 @@ func (h *Handler) serveAppURL(w http.ResponseWriter, r *http.Request) {
 
 	from := req.From
 	if from == "" {
-		from = retrieveRemoteAddr(r)
+		host, _, err := net.SplitHostPort(r.RemoteAddr)
+		if err != nil {
+			logger.Warn(ctx, "could not split remote address", logger.E(errors.WithStack(err)))
+		} else {
+			from = host
+		}
 	}
 
 	url, err := h.repo.GetURL(ctx, appID, from)
@@ -105,12 +110,3 @@ func Mount(repository Repository) MountFunc {
 		r.Post("/api/v1/apps/{appID}/url", handler.serveAppURL)
 	}
 }
-
-func retrieveRemoteAddr(r *http.Request) string {
-	host, _, err := net.SplitHostPort(r.RemoteAddr)
-	if err != nil {
-		host = r.RemoteAddr
-	}
-
-	return host
-}