oauth: add me property to token responses

lib/pleroma/web/oauth/oauth_controller.ex

@@ -105,6 +105,7 @@ def token_exchange(conn, %{"grant_type" => "authorization_code"} = params) 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),
          {:ok, token} <- Token.exchange_token(app, auth),
          {:ok, inserted_at} <- DateTime.from_naive(token.inserted_at, "Etc/UTC") do
       response = %{
@@ -113,7 +114,8 @@ def token_exchange(conn, %{"grant_type" => "authorization_code"} = params) do
         refresh_token: token.refresh_token,
         created_at: DateTime.to_unix(inserted_at),
         expires_in: 60 * 10,
-        scope: Enum.join(token.scopes, " ")
+        scope: Enum.join(token.scopes, " "),
+        me: user.ap_id
       }
 
       json(conn, response)
@@ -142,7 +144,8 @@ def token_exchange(
         access_token: token.token,
         refresh_token: token.refresh_token,
         expires_in: 60 * 10,
-        scope: Enum.join(token.scopes, " ")
+        scope: Enum.join(token.scopes, " "),
+        me: user.ap_id
       }
 
       json(conn, response)

test/web/oauth/oauth_controller_test.exs

@@ -132,11 +132,12 @@ test "issues a token for an all-body request" do
         "client_secret" => app.client_secret
       })
 
-    assert %{"access_token" => token} = json_response(conn, 200)
+    assert %{"access_token" => token, "me" => ap_id} = json_response(conn, 200)
 
     token = Repo.get_by(Token, token: token)
     assert token
     assert token.scopes == auth.scopes
+    assert user.ap_id == ap_id
   end
 
   test "issues a token for `password` grant_type with valid credentials, with full permissions by default" do