Fix auth

Author: vtm9

services/app/apps/codebattle/lib/codebattle_web/controllers/auth_controller.ex

@@ -13,18 +13,22 @@ defmodule CodebattleWeb.AuthController do
         url = Application.get_env(:codebattle, :force_redirect_url, "/")
 
         url =
-          if url == "" do
+          if url in [nil, ""] do
             "/"
           else
             url
           end
 
+        Logger.info("Redirecting to #{url}")
+
         conn
         |> put_flash(:info, gettext("Successfully authenticated"))
         |> put_session(:user_id, user.id)
         |> redirect(to: url)
 
       {:error, reason} ->
+        Logger.error("Failed to authenticate user: #{inspect(reason)}")
+
         if url = Application.get_env(:codebattle, :guest_user_force_redirect_url) do
           conn
           |> redirect(external: url)

services/app/apps/codebattle/lib/codebattle_web/controllers/session_controller.ex

@@ -8,7 +8,7 @@ defmodule CodebattleWeb.SessionController do
       Application.get_env(:codebattle, :use_only_token_auth) ->
         render(conn, "token_only.html")
 
-      Application.get_env(:codebattle, :use_local_password_auth) || true ->
+      Application.get_env(:codebattle, :use_local_password_auth) ->
         render(conn, "local_password.html")
 
       :default ->