From ab93161867447a1af4c78a8e44b46eb89c1e7c10 Mon Sep 17 00:00:00 2001
From: surtur <wanderer@dotya.ml>
Date: Wed, 16 Aug 2023 15:07:10 +0200
Subject: [PATCH] go,tmpl: allow conditionally disabling the sign-up

---
 app/routes.go            |  7 +++++--
 app/settings/settings.go |  5 +++++
 handlers/config.go       | 16 +++++++++-------
 handlers/page.go         |  5 +++++
 templates/navbar.tmpl    |  4 ++++
 5 files changed, 28 insertions(+), 9 deletions(-)

diff --git a/app/routes.go b/app/routes.go
index 035cfb2..2940397 100644
--- a/app/routes.go
+++ b/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))
-	base.GET("/signup", handlers.Signup(), compress)
-	base.POST("/signup", handlers.SignupPost(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))
 
diff --git a/app/settings/settings.go b/app/settings/settings.go
index cc0c610..b9e7928 100644
--- a/app/settings/settings.go
+++ b/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)
 }
 
diff --git a/handlers/config.go b/handlers/config.go
index 30554d5..c45ba38 100644
--- a/handlers/config.go
+++ b/handlers/config.go
@@ -11,13 +11,14 @@ import (
 )
 
 var (
-	setting    *settings.Settings
-	appver     string
-	appName    = "pcmt"
-	appIsDevel bool
-	slogger    *slogging.Slogger
-	log        slogging.Slogger
-	dbclient   *ent.Client
+	setting             *settings.Settings
+	appver              string
+	appName             = "pcmt"
+	appIsDevel          bool
+	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
 }
diff --git a/handlers/page.go b/handlers/page.go
index f6d869c..bffca83 100644
--- a/handlers/page.go
+++ b/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
diff --git a/templates/navbar.tmpl b/templates/navbar.tmpl
index 93429b2..ef551de 100644
--- a/templates/navbar.tmpl
+++ b/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">