// Copyright 2019 The Gitea Authors. All rights reserved.// SPDX-License-Identifier: MIT package auth import (	"net/http" 	user_model "forgejo.org/models/user"	"forgejo.org/modules/log") // Ensure the struct implements the interface.var (	_ Method = &Session{}) // Session checks if there is a user uid stored in the session and returns the user// object for that uid.type Session struct{} // Name represents the name of auth methodfunc (s *Session) Name() string {	return "session"} // Verify checks if there is a user uid stored in the session and returns the user// object for that uid.// Returns nil if there is no user uid stored in the session.func (s *Session) Verify(req *http.Request, w http.ResponseWriter, store DataStore, sess SessionStore) (*user_model.User, error) {	if sess == nil {		return nil, nil	} 	// Get user ID	uid := sess.Get("uid")	if uid == nil {		return nil, nil	}	log.Trace("Session Authorization: Found user[%d]", uid) 	id, ok := uid.(int64)	if !ok {		return nil, nil	} 	// Get user object	user, err := user_model.GetUserByID(req.Context(), id)	if err != nil {		if !user_model.IsErrUserNotExist(err) {			log.Error("GetUserByID: %v", err)			// Return the err as-is to keep current signed-in session, in case the err is something like context.Canceled. Otherwise non-existing user (nil, nil) will make the caller clear the signed-in session.			return nil, err		}		return nil, nil	} 	log.Trace("Session Authorization: Logged in user %-v", user)	return user, nil}