Make auth tokens usable once and expire them.

test/web/oauth/authorization_test.exs

@@ -0,0 +1,42 @@
+defmodule Pleroma.Web.OAuth.AuthorizationTest do
+  use Pleroma.DataCase
+  alias Pleroma.Web.OAuth.{Authorization, App}
+  import Pleroma.Factory
+
+  test "create an authorization token for a valid app" do
+    {:ok, app} = Repo.insert(App.register_changeset(%App{}, %{client_name: "client", scopes: "scope", redirect_uris: "url"}))
+    user = insert(:user)
+
+    {:ok, auth} = Authorization.create_authorization(app, user)
+
+    assert auth.user_id == user.id
+    assert auth.app_id == app.id
+    assert String.length(auth.token) > 10
+    assert auth.used == false
+  end
+
+  test "use up a token" do
+    {:ok, app} = Repo.insert(App.register_changeset(%App{}, %{client_name: "client", scopes: "scope", redirect_uris: "url"}))
+    user = insert(:user)
+
+    {:ok, auth} = Authorization.create_authorization(app, user)
+
+    {:ok, auth} = Authorization.use_token(auth)
+
+    assert auth.used == true
+
+    assert {:error, "already used"} == Authorization.use_token(auth)
+
+    expired_auth = %Authorization{
+      user_id: user.id,
+      app_id: app.id,
+      valid_until: NaiveDateTime.add(NaiveDateTime.utc_now, -10),
+      token: "mytoken",
+      used: false
+    }
+
+    {:ok, expired_auth} = Repo.insert(expired_auth)
+
+    assert {:error, "token expired"} == Authorization.use_token(expired_auth)
+  end
+end