add login page customization

webserver/login_page.go

@@ -8,13 +8,20 @@ import (
 
 type LoginPageData struct {
 	IsHiddenClassList string
+	LoginData         CustomizableLoginData
 }
 
+type CustomizableLoginData struct {
+	ServiceName string
+}
+
+var LoginPageDataCustomizations CustomizableLoginData
+
 func loginHandler(w http.ResponseWriter, r *http.Request) {
 	w.Header().Set("Content-Type", "text/html; charset=utf-8")
 	tmpl := template.Must(template.ParseFiles("webserver/pages/login_page.html"))
 	if r.Method == http.MethodGet {
-		tmpl.Execute(w, LoginPageData{IsHiddenClassList: "hidden"})
+		tmpl.Execute(w, LoginPageData{IsHiddenClassList: "hidden", LoginData: LoginPageDataCustomizations})
 		return
 	}