🔒 feat: Two-Factor Authentication with Backup Codes & QR support (#5685)

* 🔒 feat: add Two-Factor Authentication (2FA) with backup codes & QR support (#5684)

* working version for generating TOTP and authenticate.

* better looking UI

* refactored + better TOTP logic

* fixed issue with UI

* fixed issue: remove initial setup when closing window before completion.

* added: onKeyDown for verify and disable

* refactored some code and cleaned it up a bit.

* refactored some code and cleaned it up a bit.

* refactored some code and cleaned it up a bit.

* refactored some code and cleaned it up a bit.

* fixed issue after updating to new main branch

* updated example

* refactored controllers

* removed `passport-totp` not used.

* update the generateBackupCodes function to generate 10 codes by default:

* update the backup codes to an object.

* fixed issue with backup codes not working

* be able to disable 2FA with backup codes.

* removed new env. replaced with JWT_SECRET

* ✨ style: improved a11y and style for TwoFactorAuthentication

* 🔒 fix: small types checks

* ✨ feat: improve 2FA UI components

* fix: remove unnecessary console log

* add option to disable 2FA with backup codes

* - add option to refresh backup codes
- (optional) maybe show the user which backup codes have already been used?

* removed text to be able to merge the main.

* removed eng tx to be able to merge

* fix: migrated lang to new format.

* feat: rewrote whole 2FA UI + refactored 2FA backend

* chore: resolving conflicts

* chore: resolving conflicts

* fix: missing packages, because of resolving conflicts.

* fix: UI issue and improved a11y

* fix: 2FA backup code not working

* fix: update localization keys for UI consistency

* fix: update button label to use localized text

* fix: refactor backup codes regeneration and update localization keys

* fix: remove outdated translation for shared links management

* fix: remove outdated 2FA code prompts from translation.json

* fix: add cursor styles for backup codes item based on usage state

* fix: resolve conflict issue

* fix: resolve conflict issue

* fix: resolve conflict issue

* fix: missing packages in package-lock.json

* fix: add disabled opacity to the verify button in TwoFactorScreen

* ⚙ fix: update 2FA logic to rely on backup codes instead of TOTP status

* ⚙️ fix: Simplify user retrieval in 2FA logic by removing unnecessary TOTP secret query

* ⚙️ test: Add unit tests for TwoFactorAuthController and twoFactorControllers

* ⚙️ fix: Ensure backup codes are validated as an array before usage in 2FA components

* ⚙️ fix: Update module path mappings in tests to use relative paths

* ⚙️ fix: Update moduleNameMapper in jest.config.js to remove the caret from path mapping

* ⚙️ refactor: Simplify import paths in TwoFactorAuthController and twoFactorControllers test files

* ⚙️ test: Mock twoFactorService methods in twoFactorControllers tests

* ⚙️ refactor: Comment out unused imports and mock setups in test files for two-factor authentication

* ⚙️ refactor: removed files

* refactor: Exclude totpSecret from user data retrieval in AuthController, LoginController, and jwtStrategy

* refactor: Consolidate backup code verification to apply DRY and remove default array in user schema

* refactor: Enhance two-factor authentication ux/flow with improved error handling and loading state management, prevent redirect to /login

---------

Co-authored-by: Marco Beretta <81851188+berry-13@users.noreply.github.com>
Co-authored-by: Danny Avila <danny@librechat.ai>

api/server/controllers/auth/LoginController.js

@@ -1,3 +1,4 @@
+const { generate2FATempToken } = require('~/server/services/twoFactorService');
 const { setAuthTokens } = require('~/server/services/AuthService');
 const { logger } = require('~/config');
 
@@ -7,7 +8,12 @@ const loginController = async (req, res) => {
       return res.status(400).json({ message: 'Invalid credentials' });
     }
 
-    const { password: _, __v, ...user } = req.user;
+    if (req.user.backupCodes != null && req.user.backupCodes.length > 0) {
+      const tempToken = generate2FATempToken(req.user._id);
+      return res.status(200).json({ twoFAPending: true, tempToken });
+    }
+
+    const { password: _p, totpSecret: _t, __v, ...user } = req.user;
     user.id = user._id.toString();
 
     const token = await setAuthTokens(req.user._id, res);