Made auth customization be runtime-configurable.

lib/pleroma/web/auth/database_authenticator.ex

@@ -5,14 +5,16 @@
 defmodule Pleroma.Web.Auth.DatabaseAuthenticator do
   alias Pleroma.User
 
-  @implementation Pleroma.Config.get(
+  def implementation do
+    Pleroma.Config.get(
       Pleroma.Web.Auth.DatabaseAuthenticator,
       Pleroma.Web.Auth.PleromaDatabaseAuthenticator
     )
+  end
 
   @callback get_user(Plug.Conn.t()) :: {:ok, User.t()} | {:error, any()}
-  defdelegate get_user(plug), to: @implementation
+  def get_user(plug), do: implementation().get_user(plug)
 
   @callback handle_error(Plug.Conn.t(), any()) :: any()
-  defdelegate handle_error(plug, error), to: @implementation
+  def handle_error(plug, error), do: implementation().handle_error(plug, error)
 end

lib/pleroma/web/oauth/oauth_controller.ex

@@ -25,7 +25,7 @@ def authorize(conn, params) do
     available_scopes = (app && app.scopes) || []
     scopes = oauth_scopes(params, nil) || available_scopes
 
-    template = Application.get_env(:pleroma, :auth_template, "show.html")
+    template = Pleroma.Config.get(:auth_template, "show.html")
 
     render(conn, template, %{
       response_type: params["response_type"],

lib/pleroma/web/web.ex

@@ -27,7 +27,11 @@ def controller do
       import Pleroma.Web.Gettext
       import Pleroma.Web.Router.Helpers
 
-      plug(:put_layout, Application.get_env(:pleroma, :app_layout, "app.html"))
+      plug(:set_put_layout)
+
+      defp set_put_layout(conn, _) do
+        put_layout(conn, Pleroma.Config.get(:app_layout, "app.html"))
+      end
     end
   end