🪪 feat: Add OPENID_EMAIL_CLAIM for Configurable OpenID User Identifier (#11699)

* Allow setting the claim field to be used when OpenID login is configured

* fix(openid): harden getOpenIdEmail and expand test coverage

Guard against non-string claim values in getOpenIdEmail to prevent a
TypeError crash in isEmailDomainAllowed when domain restrictions are
configured. Improve warning messages to name the fallback chain
explicitly and distinguish missing vs. non-string claim values.

Fix the domain-block error log to record the resolved identifier rather
than userinfo.email, which was misleading when OPENID_EMAIL_CLAIM
resolved to a different field (e.g. upn).

Fix a latent test defect in openIdJwtStrategy.spec.js where the
~/server/services/Config mock exported getCustomConfig instead of
getAppConfig, the symbol actually consumed by openidStrategy.js.

Add refreshController tests covering the OPENID_EMAIL_CLAIM paths,
which were previously untested despite being a stated fix target.
Expand JWT strategy tests with null-payload, empty/whitespace
OPENID_EMAIL_CLAIM, migration-via-preferred_username, and call-order
assertions for the findUser lookup sequence.

* test(auth): enhance AuthController and openIdJwtStrategy tests for openidId updates

Added a new test in AuthController to verify that the openidId is updated correctly when a migration is triggered during the refresh process. Expanded the openIdJwtStrategy tests to include assertions for the updateUser function, ensuring that the correct parameters are passed when a user is found with a legacy email. This improves test coverage for OpenID-related functionality.

---------

Co-authored-by: Danny Avila <danny@librechat.ai>

api/server/controllers/AuthController.spec.js

@@ -1,5 +1,5 @@
 jest.mock('@librechat/data-schemas', () => ({
-  logger: { error: jest.fn(), debug: jest.fn(), warn: jest.fn() },
+  logger: { error: jest.fn(), debug: jest.fn(), warn: jest.fn(), info: jest.fn() },
 }));
 jest.mock('~/server/services/GraphTokenService', () => ({
   getGraphApiToken: jest.fn(),
@@ -11,7 +11,8 @@ jest.mock('~/server/services/AuthService', () => ({
   setAuthTokens: jest.fn(),
   registerUser: jest.fn(),
 }));
-jest.mock('~/strategies', () => ({ getOpenIdConfig: jest.fn() }));
+jest.mock('~/strategies', () => ({ getOpenIdConfig: jest.fn(), getOpenIdEmail: jest.fn() }));
+jest.mock('openid-client', () => ({ refreshTokenGrant: jest.fn() }));
 jest.mock('~/models', () => ({
   deleteAllUserSessions: jest.fn(),
   getUserById: jest.fn(),
@@ -24,9 +25,13 @@ jest.mock('@librechat/api', () => ({
   findOpenIDUser: jest.fn(),
 }));
 
-const { isEnabled } = require('@librechat/api');
+const openIdClient = require('openid-client');
+const { isEnabled, findOpenIDUser } = require('@librechat/api');
+const { graphTokenController, refreshController } = require('./AuthController');
 const { getGraphApiToken } = require('~/server/services/GraphTokenService');
-const { graphTokenController } = require('./AuthController');
+const { setOpenIDAuthTokens } = require('~/server/services/AuthService');
+const { getOpenIdConfig, getOpenIdEmail } = require('~/strategies');
+const { updateUser } = require('~/models');
 
 describe('graphTokenController', () => {
   let req, res;
@@ -142,3 +147,156 @@ describe('graphTokenController', () => {
     });
   });
 });
+
+describe('refreshController – OpenID path', () => {
+  const mockTokenset = {
+    claims: jest.fn(),
+    access_token: 'new-access',
+    id_token: 'new-id',
+    refresh_token: 'new-refresh',
+  };
+
+  const baseClaims = {
+    sub: 'oidc-sub-123',
+    oid: 'oid-456',
+    email: 'user@example.com',
+    exp: 9999999999,
+  };
+
+  let req, res;
+
+  beforeEach(() => {
+    jest.clearAllMocks();
+
+    isEnabled.mockReturnValue(true);
+    getOpenIdConfig.mockReturnValue({ some: 'config' });
+    openIdClient.refreshTokenGrant.mockResolvedValue(mockTokenset);
+    mockTokenset.claims.mockReturnValue(baseClaims);
+    getOpenIdEmail.mockReturnValue(baseClaims.email);
+    setOpenIDAuthTokens.mockReturnValue('new-app-token');
+    updateUser.mockResolvedValue({});
+
+    req = {
+      headers: { cookie: 'token_provider=openid; refreshToken=stored-refresh' },
+      session: {},
+    };
+
+    res = {
+      status: jest.fn().mockReturnThis(),
+      send: jest.fn().mockReturnThis(),
+      redirect: jest.fn(),
+    };
+  });
+
+  it('should call getOpenIdEmail with token claims and use result for findOpenIDUser', async () => {
+    const user = {
+      _id: 'user-db-id',
+      email: baseClaims.email,
+      openidId: baseClaims.sub,
+    };
+    findOpenIDUser.mockResolvedValue({ user, error: null, migration: false });
+
+    await refreshController(req, res);
+
+    expect(getOpenIdEmail).toHaveBeenCalledWith(baseClaims);
+    expect(findOpenIDUser).toHaveBeenCalledWith(
+      expect.objectContaining({ email: baseClaims.email }),
+    );
+    expect(res.status).toHaveBeenCalledWith(200);
+  });
+
+  it('should use OPENID_EMAIL_CLAIM-resolved value when claim is present in token', async () => {
+    const claimsWithUpn = { ...baseClaims, upn: 'user@corp.example.com' };
+    mockTokenset.claims.mockReturnValue(claimsWithUpn);
+    getOpenIdEmail.mockReturnValue('user@corp.example.com');
+
+    const user = {
+      _id: 'user-db-id',
+      email: 'user@corp.example.com',
+      openidId: baseClaims.sub,
+    };
+    findOpenIDUser.mockResolvedValue({ user, error: null, migration: false });
+
+    await refreshController(req, res);
+
+    expect(getOpenIdEmail).toHaveBeenCalledWith(claimsWithUpn);
+    expect(findOpenIDUser).toHaveBeenCalledWith(
+      expect.objectContaining({ email: 'user@corp.example.com' }),
+    );
+    expect(res.status).toHaveBeenCalledWith(200);
+  });
+
+  it('should fall back to claims.email when configured claim is absent from token claims', async () => {
+    getOpenIdEmail.mockReturnValue(baseClaims.email);
+
+    const user = {
+      _id: 'user-db-id',
+      email: baseClaims.email,
+      openidId: baseClaims.sub,
+    };
+    findOpenIDUser.mockResolvedValue({ user, error: null, migration: false });
+
+    await refreshController(req, res);
+
+    expect(findOpenIDUser).toHaveBeenCalledWith(
+      expect.objectContaining({ email: baseClaims.email }),
+    );
+  });
+
+  it('should update openidId when migration is triggered on refresh', async () => {
+    const user = { _id: 'user-db-id', email: baseClaims.email, openidId: null };
+    findOpenIDUser.mockResolvedValue({ user, error: null, migration: true });
+
+    await refreshController(req, res);
+
+    expect(updateUser).toHaveBeenCalledWith(
+      'user-db-id',
+      expect.objectContaining({ provider: 'openid', openidId: baseClaims.sub }),
+    );
+    expect(res.status).toHaveBeenCalledWith(200);
+  });
+
+  it('should return 401 and redirect to /login when findOpenIDUser returns no user', async () => {
+    findOpenIDUser.mockResolvedValue({ user: null, error: null, migration: false });
+
+    await refreshController(req, res);
+
+    expect(res.status).toHaveBeenCalledWith(401);
+    expect(res.redirect).toHaveBeenCalledWith('/login');
+  });
+
+  it('should return 401 and redirect when findOpenIDUser returns an error', async () => {
+    findOpenIDUser.mockResolvedValue({ user: null, error: 'AUTH_FAILED', migration: false });
+
+    await refreshController(req, res);
+
+    expect(res.status).toHaveBeenCalledWith(401);
+    expect(res.redirect).toHaveBeenCalledWith('/login');
+  });
+
+  it('should skip OpenID path when token_provider is not openid', async () => {
+    req.headers.cookie = 'token_provider=local; refreshToken=some-token';
+
+    await refreshController(req, res);
+
+    expect(openIdClient.refreshTokenGrant).not.toHaveBeenCalled();
+  });
+
+  it('should skip OpenID path when OPENID_REUSE_TOKENS is disabled', async () => {
+    isEnabled.mockReturnValue(false);
+
+    await refreshController(req, res);
+
+    expect(openIdClient.refreshTokenGrant).not.toHaveBeenCalled();
+  });
+
+  it('should return 200 with token not provided when refresh token is absent', async () => {
+    req.headers.cookie = 'token_provider=openid';
+    req.session = {};
+
+    await refreshController(req, res);
+
+    expect(res.status).toHaveBeenCalledWith(200);
+    expect(res.send).toHaveBeenCalledWith('Refresh token not provided');
+  });
+});