forgejo/modules/context/context_cookie.go
Gusted 51988ef52b
[GITEA] rework long-term authentication
- 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
2023-10-05 08:50:54 +02:00

56 lines
1.7 KiB
Go

// Copyright 2023 The Gitea Authors. All rights reserved.
// SPDX-License-Identifier: MIT
package context
import (
"net/http"
"strings"
auth_model "code.gitea.io/gitea/models/auth"
user_model "code.gitea.io/gitea/models/user"
"code.gitea.io/gitea/modules/setting"
"code.gitea.io/gitea/modules/timeutil"
"code.gitea.io/gitea/modules/web/middleware"
)
const CookieNameFlash = "gitea_flash"
func removeSessionCookieHeader(w http.ResponseWriter) {
cookies := w.Header()["Set-Cookie"]
w.Header().Del("Set-Cookie")
for _, cookie := range cookies {
if strings.HasPrefix(cookie, setting.SessionConfig.CookieName+"=") {
continue
}
w.Header().Add("Set-Cookie", cookie)
}
}
// SetSiteCookie convenience function to set most cookies consistently
// CSRF and a few others are the exception here
func (ctx *Context) SetSiteCookie(name, value string, maxAge int) {
middleware.SetSiteCookie(ctx.Resp, name, value, maxAge)
}
// DeleteSiteCookie convenience function to delete most cookies consistently
// CSRF and a few others are the exception here
func (ctx *Context) DeleteSiteCookie(name string) {
middleware.SetSiteCookie(ctx.Resp, name, "", -1)
}
// GetSiteCookie returns given cookie value from request header.
func (ctx *Context) GetSiteCookie(name string) string {
return middleware.GetSiteCookie(ctx.Req, name)
}
// SetLTACookie will generate a LTA token and add it as an cookie.
func (ctx *Context) SetLTACookie(u *user_model.User) error {
days := 86400 * setting.LogInRememberDays
lookup, validator, err := auth_model.GenerateAuthToken(ctx, u.ID, timeutil.TimeStampNow().Add(int64(days)))
if err != nil {
return err
}
ctx.SetSiteCookie(setting.CookieRememberName, lookup+":"+validator, days)
return nil
}