// createStaticFilesServer creates a static file server to server all of the
// frontend files (html, js, css, etc).
func (s *Server) createStaticFilesServer() {
var (
adminAppPath = s.cfg.App.Frontend.Admin
staticFilesPath = path.Join(adminAppPath, "static")
)
contextHandler := func(ctx context.Context, w http.ResponseWriter, req *http.Request) error {
file := path.Join(staticFilesPath, req.URL.Path)
http.ServeFile(w, req, file)
return nil
}
contextHandler = handlers.HandleHTTPError(contextHandler)
contextHandler = handlers.GzipContent(contextHandler)
contextHandler = handlers.NoDirListing(contextHandler)
handler := http.HandlerFunc(func(w http.ResponseWriter, req *http.Request) {
ctx := context.Background()
err := contextHandler(ctx, w, req)
if err != nil {
log.Printf("static file handler [%s][%s] returned error: %s", req.Method, req.URL.Path, err)
}
})
s.router.
PathPrefix("/static/").
Handler(http.StripPrefix("/static/", handler))
}
// handleWithMiddlewares applies all middlewares to the specified route. Some
// middleware functions are applied depending on the route's properties, such
// as ValidateAuth and Authorize middlewares. These last 2 functions require
// that the route RequiresAuth() and that RequiredRoles() > 0.
func (s *Server) handleWithMiddlewares(route routes.Route) httputils.ContextHandler {
return func(ctx context.Context, w http.ResponseWriter, r *http.Request) error {
serverCtx := context.WithValue(ctx, "cookieStore", s.cookieStore)
serverCtx = context.WithValue(serverCtx, "route", route)
serverCtx = context.WithValue(serverCtx, "config", s.cfg)
h := route.HandlerFunc()
h = handlers.HandleHTTPError(h)
h = handlers.GzipContent(h)
if route.RequiresAuth() {
if requiredRoles := route.RequiredRoles(); len(requiredRoles) > 0 {
h = handlers.Authorize(h)
}
h = handlers.ValidateAuth(h)
}
return h(serverCtx, w, r)
}
}