go,tmpl: allow conditionally disabling the sign-up

app/routes.go

@@ -56,8 +56,11 @@ func (a *App) SetupRoutes() error {
 	base.HEAD("/", handlers.Index())
 	base.GET("/signin", handlers.Signin(), compress)
 	base.POST("/signin", handlers.SigninPost(a.db))
+
+	if a.setting.RegistrationAllowed {
 		base.GET("/signup", handlers.Signup(), compress)
 		base.POST("/signup", handlers.SignupPost(a.db))
+	}
 
 	base.GET("/home", handlers.Home(a.db))
 

app/settings/settings.go

@@ -39,6 +39,7 @@ type Settings struct {
 	dbConnstring            string
 	dbType                  string
 	dbIsSetUp               bool
+	RegistrationAllowed     bool
 }
 
 const (
@@ -160,6 +161,10 @@ func (s *Settings) Consolidate(conf *config.Config, host *string, port *int, dev
 		}
 	}
 
+	if conf.Registration.Allowed {
+		s.RegistrationAllowed = true
+	}
+
 	s.SetVersion(version)
 }
 

handlers/config.go

@@ -18,6 +18,7 @@ var (
 	slogger             *slogging.Slogger
 	log                 slogging.Slogger
 	dbclient            *ent.Client
+	registrationAllowed bool
 )
 
 func SetDBClient(client *ent.Client) {
@@ -36,4 +37,5 @@ func InitHandlers(s *settings.Settings) {
 	appName = setting.AppName()
 	appver = setting.Version()
 	appIsDevel = setting.IsDevel()
+	registrationAllowed = setting.RegistrationAllowed
 }

handlers/page.go

@@ -21,10 +21,15 @@ type page struct {
 }
 
 func newPage() *page {
+	data := make(map[string]any, 0)
+
+	data["RegistrationAllowed"] = registrationAllowed
+
 	p := &page{
 		AppName:   appName,
 		AppVer:    appver,
 		DevelMode: appIsDevel,
+		Data:      data,
 	}
 
 	return p

templates/navbar.tmpl

@@ -46,6 +46,7 @@
 					<li>
 						<a href="#" class="block py-2 pl-3 pr-4 text-gray-900 rounded hover:bg-gray-300 md:hover:bg-transparent md:border-0 md:hover:text-blue-500 md:p-0 dark:text-white md:dark:hover:text-blue-500 dark:hover:bg-gray-700 dark:hover:text-white md:dark:hover:bg-transparent">About</a>
 					</li>
+					{{ if and .Data .Data.RegistrationAllowed }}
 					{{ if or (not .User) (and .User (not .User.IsLoggedIn)) }}
 					<li>
 						{{ if pageIs .Current "signup" }}
@@ -56,6 +57,9 @@
 						Register
 							</a>
 					</li>
+					{{end}}
+					{{end}}
+					{{ if or (not .User) (and .User (not .User.IsLoggedIn)) }}
 					<li>
 						{{ if pageIs .Current "signin" }}
 							<a href="/signin" class="block py-2 pl-3 pr-4 text-white bg-blue-500 rounded md:bg-transparent md:text-blue-700 md:p-0 md:dark:text-blue-500 dark:bg-blue-500 md:dark:bg-transparent" aria-current="page">