forgejo-federation/tests/integration/auth_token_test.go
Gusted c6a53c3172
[SECURITY] Rework long-term authentication
- This is a 'front-port' of the already existing patch on v1.21 and
v1.20, but applied on top of what Gitea has done to rework the LTA
mechanism. Forgejo will stick with the reworked mechanism by the Forgejo
Security team for the time being. The removal of legacy code (AES-GCM) has been
left out.
- 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 picked from commit e3d6622a63da9c33eed1e3d102cf28a92ff653d6)
(cherry picked from commit fef1a6dac5e25579e42d40209c4cfc06879948b9)
(cherry picked from commit b0c5165145fa52f2f7bbec1f50b308bdf1d20ef3)
(cherry picked from commit 7ad51b9f8d0647eecacd258f6ee26155da3872e1)
(cherry picked from commit 64f053f3834e764112cde26bb0d16c5e88d6b2af)
(cherry picked from commit f5e78e4c204ce50b800645d614218b6b6096eecb)

Conflicts:
	services/auth/auth_token_test.go
	https://codeberg.org/forgejo/forgejo/pulls/2069
(cherry picked from commit f69fc23d4bbadf388c7857040ee0774b824e418e)
(cherry picked from commit d955ab3ab02cbb7f1245a8cddec426d64d3ac500)
(cherry picked from commit 9220088f902a25c4690bcabf5a40a8d02e784182)
(cherry picked from commit c73ac636962c41c71814c273510146f0533264ab)
(cherry picked from commit 747a176048ea93085b406429db0e25bb21912eda)

Conflicts:
	models/user/user.go
	routers/web/user/setting/account.go
	https://codeberg.org/forgejo/forgejo/pulls/2295
2024-02-05 15:06:15 +01:00

163 lines
5.7 KiB
Go

// Copyright 2023 The Forgejo Authors. All rights reserved.
// SPDX-License-Identifier: MIT
package integration
import (
"encoding/hex"
"net/http"
"net/url"
"strings"
"testing"
"code.gitea.io/gitea/models/auth"
"code.gitea.io/gitea/models/db"
"code.gitea.io/gitea/models/unittest"
user_model "code.gitea.io/gitea/models/user"
"code.gitea.io/gitea/modules/setting"
"code.gitea.io/gitea/modules/timeutil"
"code.gitea.io/gitea/tests"
"github.com/stretchr/testify/assert"
)
// GetSessionForLTACookie returns a new session with only the LTA cookie being set.
func GetSessionForLTACookie(t *testing.T, ltaCookie *http.Cookie) *TestSession {
t.Helper()
ch := http.Header{}
ch.Add("Cookie", ltaCookie.String())
cr := http.Request{Header: ch}
session := emptyTestSession(t)
baseURL, err := url.Parse(setting.AppURL)
assert.NoError(t, err)
session.jar.SetCookies(baseURL, cr.Cookies())
return session
}
// GetLTACookieValue returns the value of the LTA cookie.
func GetLTACookieValue(t *testing.T, sess *TestSession) string {
t.Helper()
rememberCookie := sess.GetCookie(setting.CookieRememberName)
assert.NotNil(t, rememberCookie)
cookieValue, err := url.QueryUnescape(rememberCookie.Value)
assert.NoError(t, err)
return cookieValue
}
// TestSessionCookie checks if the session cookie provides authentication.
func TestSessionCookie(t *testing.T) {
defer tests.PrepareTestEnv(t)()
sess := loginUser(t, "user1")
assert.NotNil(t, sess.GetCookie(setting.SessionConfig.CookieName))
req := NewRequest(t, "GET", "/user/settings")
sess.MakeRequest(t, req, http.StatusOK)
}
// TestLTACookie checks if the LTA cookie that's returned is valid, exists in the database
// and provides authentication of no session cookie is present.
func TestLTACookie(t *testing.T) {
defer tests.PrepareTestEnv(t)()
user := unittest.AssertExistsAndLoadBean(t, &user_model.User{ID: 1})
sess := emptyTestSession(t)
req := NewRequestWithValues(t, "POST", "/user/login", map[string]string{
"_csrf": GetCSRF(t, sess, "/user/login"),
"user_name": user.Name,
"password": userPassword,
"remember": "true",
})
sess.MakeRequest(t, req, http.StatusSeeOther)
// Checks if the database entry exist for the user.
ltaCookieValue := GetLTACookieValue(t, sess)
lookupKey, validator, found := strings.Cut(ltaCookieValue, ":")
assert.True(t, found)
rawValidator, err := hex.DecodeString(validator)
assert.NoError(t, err)
unittest.AssertExistsAndLoadBean(t, &auth.AuthorizationToken{LookupKey: lookupKey, HashedValidator: auth.HashValidator(rawValidator), UID: user.ID})
// Check if the LTA cookie it provides authentication.
// If LTA cookie provides authentication /user/login shouldn't return status 200.
session := GetSessionForLTACookie(t, sess.GetCookie(setting.CookieRememberName))
req = NewRequest(t, "GET", "/user/login")
session.MakeRequest(t, req, http.StatusSeeOther)
}
// TestLTAPasswordChange checks that LTA doesn't provide authentication when a
// password change has happened and that the new LTA does provide authentication.
func TestLTAPasswordChange(t *testing.T) {
defer tests.PrepareTestEnv(t)()
user := unittest.AssertExistsAndLoadBean(t, &user_model.User{ID: 1})
sess := loginUserWithPasswordRemember(t, user.Name, userPassword, true)
oldRememberCookie := sess.GetCookie(setting.CookieRememberName)
assert.NotNil(t, oldRememberCookie)
// Make a simple password change.
req := NewRequestWithValues(t, "POST", "/user/settings/account", map[string]string{
"_csrf": GetCSRF(t, sess, "/user/settings/account"),
"old_password": userPassword,
"password": "password2",
"retype": "password2",
})
sess.MakeRequest(t, req, http.StatusSeeOther)
rememberCookie := sess.GetCookie(setting.CookieRememberName)
assert.NotNil(t, rememberCookie)
// Check if the password really changed.
assert.NotEqualValues(t, unittest.AssertExistsAndLoadBean(t, &user_model.User{ID: 1}).Passwd, user.Passwd)
// /user/settings/account should provide with a new LTA cookie, so check for that.
// If LTA cookie provides authentication /user/login shouldn't return status 200.
session := GetSessionForLTACookie(t, rememberCookie)
req = NewRequest(t, "GET", "/user/login")
session.MakeRequest(t, req, http.StatusSeeOther)
// Check if the old LTA token is invalidated.
session = GetSessionForLTACookie(t, oldRememberCookie)
req = NewRequest(t, "GET", "/user/login")
session.MakeRequest(t, req, http.StatusOK)
}
// TestLTAExpiry tests that the LTA expiry works.
func TestLTAExpiry(t *testing.T) {
defer tests.PrepareTestEnv(t)()
user := unittest.AssertExistsAndLoadBean(t, &user_model.User{ID: 1})
sess := loginUserWithPasswordRemember(t, user.Name, userPassword, true)
ltaCookieValie := GetLTACookieValue(t, sess)
lookupKey, _, found := strings.Cut(ltaCookieValie, ":")
assert.True(t, found)
// Ensure it's not expired.
lta := unittest.AssertExistsAndLoadBean(t, &auth.AuthorizationToken{UID: user.ID, LookupKey: lookupKey})
assert.False(t, lta.IsExpired())
// Manually stub LTA's expiry.
_, err := db.GetEngine(db.DefaultContext).ID(lta.ID).Table("forgejo_auth_token").Cols("expiry").Update(&auth.AuthorizationToken{Expiry: timeutil.TimeStampNow()})
assert.NoError(t, err)
// Ensure it's expired.
lta = unittest.AssertExistsAndLoadBean(t, &auth.AuthorizationToken{UID: user.ID, LookupKey: lookupKey})
assert.True(t, lta.IsExpired())
// Should return 200 OK, because LTA doesn't provide authorization anymore.
session := GetSessionForLTACookie(t, sess.GetCookie(setting.CookieRememberName))
req := NewRequest(t, "GET", "/user/login")
session.MakeRequest(t, req, http.StatusOK)
// Ensure it's deleted.
unittest.AssertNotExistsBean(t, &auth.AuthorizationToken{UID: user.ID, LookupKey: lookupKey})
}