*️⃣ feat: Reuse OpenID Auth Tokens (#7397)

* feat: integrate OpenID Connect support with token reuse

- Added `jwks-rsa` and `new-openid-client` dependencies for OpenID Connect functionality.
- Implemented OpenID token refresh logic in `AuthController`.
- Enhanced `LogoutController` to handle OpenID logout and session termination.
- Updated JWT authentication middleware to support OpenID token provider.
- Modified OAuth routes to accommodate OpenID authentication and token management.
- Created `setOpenIDAuthTokens` function to manage OpenID tokens in cookies.
- Upgraded OpenID strategy with user info fetching and token exchange protocol.
- Introduced `openIdJwtLogin` strategy for handling OpenID JWT tokens.
- Added caching mechanism for exchanged OpenID tokens.
- Updated configuration to include OpenID exchanged tokens cache key.
- updated .env.example to include the new env variables needed for the feature.

* fix: update return type in downloadImage documentation for clarity and fixed openIdJwtLogin env variables

* fix: update Jest configuration and tests for OpenID strategy integration

* fix: update OpenID strategy to include callback URL in setup

* fix: fix optionalJwtAuth middleware to support OpenID token reuse and improve currentUrl method in CustomOpenIDStrategy to override the dynamic host issue related to proxy (e.g. cloudfront)

* fix: fixed code formatting

* Fix: Add mocks for openid-client and passport strategy in Jest configuration to fix unit tests

* fix eslint errors: Format mock file openid-client.

* ✨ feat: Add PKCE support for OpenID and default handling in strategy setup

---------

Co-authored-by: Atef Bellaaj <slalom.bellaaj@external.daimlertruck.com>
Co-authored-by: Ruben Talstra <RubenTalstra1211@outlook.com>

api/server/middleware/requireJwtAuth.js

@@ -1,5 +1,23 @@
 const passport = require('passport');
+const cookies = require('cookie');
+const { isEnabled } = require('~/server/utils');
 
-const requireJwtAuth = passport.authenticate('jwt', { session: false });
+/**
+ * Custom Middleware to handle JWT authentication, with support for OpenID token reuse
+ * Switches between JWT and OpenID authentication based on cookies and environment settings
+ */
+const requireJwtAuth = (req, res, next) => {
+  // Check if token provider is specified in cookies
+  const cookieHeader = req.headers.cookie;
+  const tokenProvider = cookieHeader ? cookies.parse(cookieHeader).token_provider : null;
+
+  // Use OpenID authentication if token provider is OpenID and OPENID_REUSE_TOKENS is enabled
+  if (tokenProvider === 'openid' && isEnabled(process.env.OPENID_REUSE_TOKENS)) {
+    return passport.authenticate('openidJwt', { session: false })(req, res, next);
+  }
+
+  // Default to standard JWT authentication
+  return passport.authenticate('jwt', { session: false })(req, res, next);
+};
 
 module.exports = requireJwtAuth;