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forgejo/models/auth/auth_token.go
KN4CK3R c6c829fe3f
Enhanced auth token / remember me (#27606)
Closes #27455

> The mechanism responsible for long-term authentication (the 'remember
me' cookie) uses a weak construction technique. It will hash the user's
hashed password and the rands value; it will then call the secure cookie
code, which will encrypt the user's name with the computed hash. If one
were able to dump the database, they could extract those two values to
rebuild that cookie and impersonate a user. That vulnerability exists
from the date the dump was obtained until a user changed their password.
> 
> To fix this security issue, the cookie could be created and verified
using a different technique such as the one explained at
https://paragonie.com/blog/2015/04/secure-authentication-php-with-long-term-persistence#secure-remember-me-cookies.

The PR removes the now obsolete setting `COOKIE_USERNAME`.
2023-10-14 00:56:41 +00:00

60 lines
1.4 KiB
Go

// Copyright 2023 The Gitea Authors. All rights reserved.
// SPDX-License-Identifier: MIT
package auth
import (
"context"
"code.gitea.io/gitea/models/db"
"code.gitea.io/gitea/modules/timeutil"
"code.gitea.io/gitea/modules/util"
"xorm.io/builder"
)
var ErrAuthTokenNotExist = util.NewNotExistErrorf("auth token does not exist")
type AuthToken struct { //nolint:revive
ID string `xorm:"pk"`
TokenHash string
UserID int64 `xorm:"INDEX"`
ExpiresUnix timeutil.TimeStamp `xorm:"INDEX"`
}
func init() {
db.RegisterModel(new(AuthToken))
}
func InsertAuthToken(ctx context.Context, t *AuthToken) error {
_, err := db.GetEngine(ctx).Insert(t)
return err
}
func GetAuthTokenByID(ctx context.Context, id string) (*AuthToken, error) {
at := &AuthToken{}
has, err := db.GetEngine(ctx).ID(id).Get(at)
if err != nil {
return nil, err
}
if !has {
return nil, ErrAuthTokenNotExist
}
return at, nil
}
func UpdateAuthTokenByID(ctx context.Context, t *AuthToken) error {
_, err := db.GetEngine(ctx).ID(t.ID).Cols("token_hash", "expires_unix").Update(t)
return err
}
func DeleteAuthTokenByID(ctx context.Context, id string) error {
_, err := db.GetEngine(ctx).ID(id).Delete(&AuthToken{})
return err
}
func DeleteExpiredAuthTokens(ctx context.Context) error {
_, err := db.GetEngine(ctx).Where(builder.Lt{"expires_unix": timeutil.TimeStampNow()}).Delete(&AuthToken{})
return err
}