/* Copyright © 2023 Philipp Wolfer Scotty is free software: you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation, either version 3 of the License, or (at your option) any later version. Scotty is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details. You should have received a copy of the GNU General Public License along with Scotty. If not, see . */ package auth import ( "context" "go.uploadedlobster.com/scotty/internal/storage" "golang.org/x/oauth2" ) type databaseTokenSource struct { new oauth2.TokenSource db storage.Database service string tok *oauth2.Token } func (s *databaseTokenSource) Token() (tok *oauth2.Token, err error) { tok = s.tok if tok == nil { tok, _ = s.loadToken() } if tok != nil && tok.Valid() { return tok, nil } if tok, err = s.new.Token(); err != nil { return nil, err } err = s.saveToken(tok) s.tok = tok if err != nil { return nil, err } return tok, err } func (c *databaseTokenSource) saveToken(tok *oauth2.Token) error { return c.db.SetOAuth2Token(c.service, tok) } func (c *databaseTokenSource) loadToken() (*oauth2.Token, error) { return c.db.GetOAuth2Token(c.service) } func NewDatabaseTokenSource(db storage.Database, service string, config *oauth2.Config, tok *oauth2.Token) oauth2.TokenSource { return &databaseTokenSource{ db: db, new: config.TokenSource(context.Background(), tok), service: service, tok: tok, } }