Allow disabling registration

assets/css/app.scss

@@ -53,6 +53,10 @@ form {
 		border-radius: 5px;
 	}
 
+	input[type=radio], input[type=checkbox] {
+		width: auto;
+	}
+
 	textarea {
 		min-height: 200px;
 		max-width: 100%;

config/dev.exs

@@ -75,4 +75,5 @@ config :phoenix, :stacktrace_depth, 20
 # Initialize plugs at runtime for faster development compilation
 config :phoenix, :plug_init_mode, :runtime
 
+config :wiki, :registration_enabled, false
 config :wiki, :upload_dir, "uploads"

lib/wiki_web/controllers/user_registration_controller.ex

@@ -5,6 +5,18 @@ defmodule WikiWeb.UserRegistrationController do
   alias Wiki.Accounts.User
   alias WikiWeb.UserAuth
 
+  plug :check_registration_enabled
+
+  def check_registration_enabled(conn, _opts) do
+    if Application.get_env(:wiki, :registration_enabled, true) do
+      conn
+    else
+      conn
+      |> send_resp(403, "Forbidden")
+      |> halt()
+    end
+  end
+
   def new(conn, _params) do
     changeset = Accounts.change_user_registration(%User{})
     render(conn, "new.html", changeset: changeset)

lib/wiki_web/templates/layout/_user_menu.html.eex

@@ -4,7 +4,9 @@
   <li><%= link "Settings", to: Routes.user_settings_path(@conn, :edit) %></li>
   <li><%= link "Log out", to: Routes.user_session_path(@conn, :delete), method: :delete %></li>
 <% else %>
-  <li><%= link "Register", to: Routes.user_registration_path(@conn, :new) %></li>
+  <%= if registration_enabled() do %>
+    <li><%= link "Register", to: Routes.user_registration_path(@conn, :new) %></li>
+  <% end %>
   <li><%= link "Log in", to: Routes.user_session_path(@conn, :new) %></li>
 <% end %>
 </ul>

lib/wiki_web/templates/user_session/new.html.eex

@@ -22,6 +22,8 @@
 <% end %>
 
 <p>
-  <%= link "Register", to: Routes.user_registration_path(@conn, :new) %> |
+  <%= if registration_enabled() do %>
+    <%= link "Register", to: Routes.user_registration_path(@conn, :new) %> |
+  <% end %>
   <%= link "Forgot your password?", to: Routes.user_reset_password_path(@conn, :new) %>
 </p>

lib/wiki_web/views/layout_view.ex

@@ -1,3 +1,7 @@
 defmodule WikiWeb.LayoutView do
   use WikiWeb, :view
+
+  def registration_enabled() do
+    Application.get_env(:wiki, :registration_enabled, true)
+  end
 end

lib/wiki_web/views/user_session_view.ex

@@ -1,3 +1,7 @@
 defmodule WikiWeb.UserSessionView do
   use WikiWeb, :view
+
+  def registration_enabled() do
+    Application.get_env(:wiki, :registration_enabled, true)
+  end
 end