1 files changed, 19 insertions, 0 deletions
diff --git a/services/auth/source/oauth2/source_authenticate.go b/services/auth/source/oauth2/source_authenticate.go
new file mode 100644
index 0000000..bbda35d
--- /dev/null
+++ b/services/auth/source/oauth2/source_authenticate.go
@@ -0,0 +1,19 @@
+// Copyright 2021 The Gitea Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package oauth2
+
+import (
+	"context"
+
+	user_model "code.gitea.io/gitea/models/user"
+	"code.gitea.io/gitea/services/auth/source/db"
+)
+
+// Authenticate falls back to the db authenticator
+func (source *Source) Authenticate(ctx context.Context, user *user_model.User, login, password string) (*user_model.User, error) {
+	return db.Authenticate(ctx, user, login, password)
+}
+
+// NB: Oauth2 does not implement LocalTwoFASkipper for password authentication
+// as its password authentication drops to db authentication