# Which Problems Are Solved
Invalid formatting in the login codebase due to invalid prettier
configuration
# How the Problems Are Solved
Fxed .prettierignore wildcards for login source files
# Additional Changes
Removed .prettierrc file because there is already a prettier.config.mjs
file
# Additional Context
# Which Problems Are Solved
- Currently, if a user has only secondary authentication methods (like
TOTP) configured but no primary authentication method (Password,
Passkey, or IDP), the login flow fails to handle them correctly,
resulting in an unhelpful "user not found" error when they attempt to
log in.
- These users are not correctly prompted to set up a primary
authentication factor, leaving them in a state where they cannot
successfully authenticate.
# How the Problems Are Solved
- Updated `sendLoginname` to evaluate if a user has an active primary
authentication method (`AuthenticationMethodType.PASSWORD`, `PASSKEY`,
or `IDP`. If they lack a primary method, the flow now correctly
redirects them into the verification/invite process rather than falling
through the method checks and returning a generic error.
- Updated `sendVerification` to replace the empty `authMethodTypes`
array check with a specific check for primary authentication methods.
Now, after completing email/invite verification, users who do not have a
primary authentication method are explicitly redirected to
`/authenticator/set` to set one up.
Closes#11006
# Which Problems Are Solved
This PR addresses an issue where the ignoreUnknownUsernames setting was
not being respected in certain scenarios during the login flow.
Specifically:
- When a user was found but rejected due to login settings (e.g.,
disableLoginWithEmail), the system would return a "User not found" error
instead of redirecting to the password page as dictated by
ignoreUnknownUsernames.
- When a user was not found, and the flow fell through the registration
checks (e.g., IDP redirect failed), it would also return "User not
found" without checking ignoreUnknownUsernames.
# How the Problems Are Solved
- Introduced a helper function `handleUserNotFound` in
`apps/login/src/lib/server/loginname.ts` to centralize the logic for
checking ignoreUnknownUsernames and redirecting to the password page.
- Updated the user validation logic to call handleUserNotFound when a
user is found but rejected by policy.
- Updated the registration fallback logic to call handleUserNotFound
instead of directly returning an error.
- Added new test cases in `apps/login/src/lib/server/loginname.test.ts`
to verify the fix and ensure no regressions.
# Additional Changes
- Fixed inconsistency in translation files
---------
Co-authored-by: Livio Spring <[email protected]>
* fix: Improve host header handling and deployment mode detection
* ZITADEL_CLOUD env
* refactor service config
* service config
* cleanup
* cleanup
* util for original and public host
* instanceHost, publicHost
* cleanup constructUrl
* cleanup middleware
* add x-zitadel-forward-host as fallback for current cloud setup
* fix build
* fix: lint
* fix: update test mocks
* fix: provide basepath to unit tests
* host handling
* unit tests
* imports
* fix: getPublicHost instead of getInstanceHost
* unit tests
* update nextjs, implement jwt verify for logout_token
* pass logout information in jwt to login v2
* handle hosts in jwks url
* point idp callbacks to the api and not the login UI
* logout_hint out of logout token, typecheck
* rm unused imports
* fix oidc integration test
---------
Co-authored-by: Livio Spring <[email protected]>
# Which Problems Are Solved
Replace this example text with a concise list of problems that this PR
solves.
For example:
- password complexity requirements have hardcoded English text
- password, loginname, register and verify components have hardcoded
Engilsh error messages/alerts
# How the Problems Are Solved
Replace this example text with a concise list of changes that this PR
introduces.
For example:
- adds i18n for password complexity requirements
- adds i18n for password, loginname, register and verify components
error messages/alerts
# Additional Changes
- small change in code/styles for icons in PasswordComplexity to make
sure that icons keep size
# Additional Context
N.A
---------
Co-authored-by: Adam Kida <[email protected]>
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# Which Problems Are Solved
When deploying the login application behind proxies or using Vercel
rewrites (e.g., `zitadel.com/login` → `login-zitadel-qa.vercel.app`),
the application was using the internal rewritten host instead of the
original user-facing host. This caused several issues:
1. **Broken Password Reset Emails**: Email links contained internal
hosts like `login-zitadel-qa.vercel.app` instead of `zitadel.com`
2. **Inconsistent User Experience**: Users would see different domains
in various parts of the flow
3. **Security Concerns**: Internal infrastructure details were exposed
to end users
4. **Scattered Logic**: Host detection logic was duplicated across
multiple files with inconsistent error handling
# How the Problems Are Solved
Created comprehensive host detection utilities in `/lib/server/host.ts`
and `/lib/client/host.ts`:
**Server-side utilities:**
- `getOriginalHost()` - Returns the original user-facing host
- `getOriginalHostWithProtocol()` - Returns host with proper protocol
(http/https)
The /login route was experiencing issues with React Server Component
(RSC) requests interfering with one-time authentication callbacks. When
users navigated to /login via client-side routing (router.push()),
Next.js automatically triggered _rsc requests that could consume
single-use createCallback tokens, breaking OIDC and SAML authentication
flows.
# Which Problems Are Solved
When users attempt to log in, Next.js automatically makes requests with
the `_rsc=1` query parameter for React Server Components. The current
implementation treats these as server errors:
```typescript
// Before
if (_rsc) {
return NextResponse.json({ error: "No _rsc supported" }, { status: 500 });
}
```
This results in:
- Spurious 500 error logs polluting monitoring systems
- False alerts for server failures
- Difficulty distinguishing real issues from benign RSC requests
# How the Problems Are Solved
This PR implements a comprehensive refactoring that:
- Eliminates RSC interference by providing server actions for internal
auth flow completion
- Separates concerns between external flow initiation and internal flow
completion
- Extracts shared utilities to improve code maintainability and
reusability
- Maintains full backward compatibility for external applications
# Additional Context
## New Architecture
- auth-flow.ts: Shared utilities for auth flow completion with RSC
protection
- flow-initiation.ts: Extracted OIDC/SAML flow initiation logic (~400
lines)
- auth.ts: Server actions for internal components
## Route Handler Simplification
- route.ts: Reduced from ~350 lines to ~75 lines
- External-only focus: Now handles only flow initiation for external
applications
- Removed completion logic: External apps use their own callback URLs
- Enhanced validation: Early RSC blocking and parameter validation
## Flow Logic Improvements
- Early return patterns: Guard clauses eliminate deep nesting
- Better error handling: Specific error messages for different failure
modes
- Fixed SAML flow: Addressed incomplete logic
- Consistent session handling: Unified approach across OIDC and SAML
# Which Problems Are Solved
- The previous monorepo in monorepo structure for the login app and its
related packages was fragmented, complicated and buggy.
- The process for building and testing the login container was
inconsistent between local development and CI.
- Lack of clear documentation as well as easy and reliable ways for
non-frontend developers to reproduce and fix failing PR checks locally.
# How the Problems Are Solved
- Consolidated the login app and its related npm packages by moving the
main package to `apps/login/apps/login` and merging
`apps/login/packages/integration` and `apps/login/packages/acceptance`
into the main `apps/login` package.
- Migrated from Docker Compose-based test setups to dev container-based
setups, adding support for multiple dev container configurations:
- `.devcontainer/base`
- `.devcontainer/turbo-lint-unit`
- `.devcontainer/turbo-lint-unit-debug`
- `.devcontainer/login-integration`
- `.devcontainer/login-integration-debug`
- Added npm scripts to run the new dev container setups, enabling exact
reproduction of GitHub PR checks locally, and updated the pipeline to
use these containers.
- Cleaned up Dockerfiles and docker-bake.hcl files to only build the
production image for the login app.
- Cleaned up compose files to focus on dev environments in dev
containers.
- Updated `CONTRIBUTING.md` with guidance on running and debugging PR
checks locally using the new dev container approach.
- Introduced separate Dockerfiles for the login app to distinguish
between using published client packages and building clients from local
protos.
- Ensured the login container is always built in the pipeline for use in
integration and acceptance tests.
- Updated Makefile and GitHub Actions workflows to use
`--frozen-lockfile` for installing pnpm packages, ensuring reproducible
installs.
- Disabled GitHub release creation by the changeset action.
- Refactored the `/build` directory structure for clarity and
maintainability.
- Added a `clean` command to `docks/package.json`.
- Experimentally added `knip` to the `zitadel-client` package for
improved linting of dependencies and exports.
# Additional Changes
- Fixed Makefile commands for consistency and reliability.
- Improved the structure and clarity of the `/build` directory to
support seamless integration of the login build.
- Enhanced documentation and developer experience for running and
debugging CI checks locally.
# Additional Context
- See updated `CONTRIBUTING.md` for new local development and debugging
instructions.
- These changes are a prerequisite for further improvements to the CI
pipeline and local development workflow.
- Closes#10276
RamonandGitHub
Mridang AgarwallaandGitHub
Max PeintnerandGitHub
Elio BischofandGitHub