mirror of
https://codeberg.org/forgejo/forgejo.git
synced 2024-11-30 09:41:11 -05:00
51988ef52b
- The current architecture is inherently insecure, because you can
construct the 'secret' cookie value with values that are available in
the database. Thus provides zero protection when a database is
dumped/leaked.
- This patch implements a new architecture that's inspired from: [Paragonie Initiative](https://paragonie.com/blog/2015/04/secure-authentication-php-with-long-term-persistence#secure-remember-me-cookies).
- Integration testing is added to ensure the new mechanism works.
- Removes a setting, because it's not used anymore.
(cherry-pick from eff097448b)
Conflicts:
modules/context/context_cookie.go
trivial context conflicts
routers/web/web.go
ctx.GetSiteCookie(setting.CookieRememberName) moved from services/auth/middleware.go
96 lines
2.8 KiB
Go
96 lines
2.8 KiB
Go
// Copyright 2023 The Forgejo Authors. All rights reserved.
|
|
// SPDX-License-Identifier: MIT
|
|
|
|
package auth
|
|
|
|
import (
|
|
"context"
|
|
"crypto/sha256"
|
|
"encoding/hex"
|
|
"fmt"
|
|
"time"
|
|
|
|
"code.gitea.io/gitea/models/db"
|
|
"code.gitea.io/gitea/modules/timeutil"
|
|
"code.gitea.io/gitea/modules/util"
|
|
)
|
|
|
|
// AuthorizationToken represents a authorization token to a user.
|
|
type AuthorizationToken struct {
|
|
ID int64 `xorm:"pk autoincr"`
|
|
UID int64 `xorm:"INDEX"`
|
|
LookupKey string `xorm:"INDEX UNIQUE"`
|
|
HashedValidator string
|
|
Expiry timeutil.TimeStamp
|
|
}
|
|
|
|
// TableName provides the real table name.
|
|
func (AuthorizationToken) TableName() string {
|
|
return "forgejo_auth_token"
|
|
}
|
|
|
|
func init() {
|
|
db.RegisterModel(new(AuthorizationToken))
|
|
}
|
|
|
|
// IsExpired returns if the authorization token is expired.
|
|
func (authToken *AuthorizationToken) IsExpired() bool {
|
|
return authToken.Expiry.AsLocalTime().Before(time.Now())
|
|
}
|
|
|
|
// GenerateAuthToken generates a new authentication token for the given user.
|
|
// It returns the lookup key and validator values that should be passed to the
|
|
// user via a long-term cookie.
|
|
func GenerateAuthToken(ctx context.Context, userID int64, expiry timeutil.TimeStamp) (lookupKey, validator string, err error) {
|
|
// Request 64 random bytes. The first 32 bytes will be used for the lookupKey
|
|
// and the other 32 bytes will be used for the validator.
|
|
rBytes, err := util.CryptoRandomBytes(64)
|
|
if err != nil {
|
|
return "", "", err
|
|
}
|
|
hexEncoded := hex.EncodeToString(rBytes)
|
|
validator, lookupKey = hexEncoded[64:], hexEncoded[:64]
|
|
|
|
_, err = db.GetEngine(ctx).Insert(&AuthorizationToken{
|
|
UID: userID,
|
|
Expiry: expiry,
|
|
LookupKey: lookupKey,
|
|
HashedValidator: HashValidator(rBytes[32:]),
|
|
})
|
|
return lookupKey, validator, err
|
|
}
|
|
|
|
// FindAuthToken will find a authorization token via the lookup key.
|
|
func FindAuthToken(ctx context.Context, lookupKey string) (*AuthorizationToken, error) {
|
|
var authToken AuthorizationToken
|
|
has, err := db.GetEngine(ctx).Where("lookup_key = ?", lookupKey).Get(&authToken)
|
|
if err != nil {
|
|
return nil, err
|
|
} else if !has {
|
|
return nil, fmt.Errorf("lookup key %q: %w", lookupKey, util.ErrNotExist)
|
|
}
|
|
return &authToken, nil
|
|
}
|
|
|
|
// DeleteAuthToken will delete the authorization token.
|
|
func DeleteAuthToken(ctx context.Context, authToken *AuthorizationToken) error {
|
|
_, err := db.DeleteByBean(ctx, authToken)
|
|
return err
|
|
}
|
|
|
|
// DeleteAuthTokenByUser will delete all authorization tokens for the user.
|
|
func DeleteAuthTokenByUser(ctx context.Context, userID int64) error {
|
|
if userID == 0 {
|
|
return nil
|
|
}
|
|
|
|
_, err := db.DeleteByBean(ctx, &AuthorizationToken{UID: userID})
|
|
return err
|
|
}
|
|
|
|
// HashValidator will return a hexified hashed version of the validator.
|
|
func HashValidator(validator []byte) string {
|
|
h := sha256.New()
|
|
h.Write(validator)
|
|
return hex.EncodeToString(h.Sum(nil))
|
|
}
|