reuse valid oauth tokens (#182)

[akkoma] / lib / pleroma / web / o_auth / token.ex

diff --git a/lib/pleroma/web/o_auth/token.ex b/lib/pleroma/web/o_auth/token.ex
index 9d69e9db45374cab61fa1e9e56aa02cd13820b7a..c9398aeaa2be645a6b31d14383cf1ad28ada18df 100644 (file)
--- a/lib/pleroma/web/o_auth/token.ex
+++ b/lib/pleroma/web/o_auth/token.ex
@@ -70,6 +70,16 @@ defmodule Pleroma.Web.OAuth.Token do
     end
   end
 
+  def get_preeexisting_by_app_and_user(app, user) do
+    Query.get_by_app(app.id)
+    |> Query.get_by_user(user.id)
+    |> Query.get_unexpired()
+    |> Query.preload([:user])
+    |> Query.sort_by_inserted_at()
+    |> Query.limit(1)
+    |> Repo.find_resource()
+  end
+
   defp put_token(changeset) do
     changeset
     |> change(%{token: Token.Utils.generate_token()})
@@ -86,6 +96,14 @@ defmodule Pleroma.Web.OAuth.Token do
     |> unique_constraint(:refresh_token)
   end
 
+  def get_or_exchange_token(%Authorization{} = auth, %App{} = app, %User{} = user) do
+    if auth.used do
+      get_preeexisting_by_app_and_user(app, user)
+    else
+      exchange_token(app, auth)
+    end
+  end
+
   defp put_valid_until(changeset, attrs) do
     valid_until =
       Map.get(attrs, :valid_until, NaiveDateTime.add(NaiveDateTime.utc_now(), lifespan()))