Merge remote-tracking branch 'remotes/upstream/develop' into twitter_oauth

# Conflicts:
#	lib/pleroma/web/oauth/oauth_controller.ex
#	lib/pleroma/web/router.ex

lib/pleroma/web/oauth/oauth_controller.ex

@@ -9,6 +9,7 @@ defmodule Pleroma.Web.OAuth.OAuthController do
   alias Pleroma.Repo
   alias Pleroma.User
   alias Pleroma.Web.Auth.Authenticator
+  alias Pleroma.Web.ControllerHelper
   alias Pleroma.Web.OAuth.App
   alias Pleroma.Web.OAuth.Authorization
   alias Pleroma.Web.OAuth.Token
@@ -22,7 +23,28 @@ defmodule Pleroma.Web.OAuth.OAuthController do
 
   action_fallback(Pleroma.Web.OAuth.FallbackController)
 
-  def authorize(conn, params) do
+  def authorize(%{assigns: %{token: %Token{} = token}} = conn, params) do
+    if ControllerHelper.truthy_param?(params["force_login"]) do
+      do_authorize(conn, params)
+    else
+      redirect_uri =
+        if is_binary(params["redirect_uri"]) do
+          params["redirect_uri"]
+        else
+          app = Repo.preload(token, :app).app
+
+          app.redirect_uris
+          |> String.split()
+          |> Enum.at(0)
+        end
+
+      redirect(conn, external: redirect_uri(conn, redirect_uri))
+    end
+  end
+
+  def authorize(conn, params), do: do_authorize(conn, params)
+
+  defp do_authorize(conn, params) do
     app = Repo.get_by(App, client_id: params["client_id"])
     available_scopes = (app && app.scopes) || []
     scopes = oauth_scopes(params, nil) || available_scopes
@@ -99,7 +121,7 @@ defmodule Pleroma.Web.OAuth.OAuthController do
          fixed_token = fix_padding(params["code"]),
          %Authorization{} = auth <-
            Repo.get_by(Authorization, token: fixed_token, app_id: app.id),
-         %User{} = user <- Repo.get(User, auth.user_id),
+         %User{} = user <- User.get_by_id(auth.user_id),
          {:ok, token} <- Token.exchange_token(app, auth),
          {:ok, inserted_at} <- DateTime.from_naive(token.inserted_at, "Etc/UTC") do
       response = %{