preauth/CHANGELOG.md

Changelog

All notable changes to this project will be documented in this file.

The format is based on Keep a Changelog, and this project adheres to Semantic Versioning.

[Unreleased]

Security

• Made Remote-User header value configurable via REMOTE_USER environment variable with four modes: session (default), static, mapped, and none. This allows deployments to prevent user-controlled header values from reaching backend services.
• Added SecurityHeadersListener to set X-Content-Type-Options, X-Frame-Options, Content-Security-Policy, Referrer-Policy, and Strict-Transport-Security headers on all responses.
• Replaced document.write() with document.documentElement.innerHTML in login page JavaScript to avoid CSP violations.
• Added CSS escaping (|e('css')) to environment-configured color values in the login page template to prevent CSS injection.
• Documented CSRF protection model: the nonce system provides CSRF protection for POST form logins (server-generated, single-use, 120s TTL).
• Reduced TOTP verification window from 10 periods (±5 minutes) to 1 period (±30 seconds) to reduce brute-force attack surface.
• Removed hardcoded APP_SECRET from bin/franken.sh (now uses environment variable or generates a random secret).
• Removed backup code values from debug log output.
• Added .env to .gitignore.
• Expanded TLD list in DomainManager with many missing multi-part TLDs (.com.au, .co.jp, .com.br, .co.kr, .com.tw, .co.za, etc.) to prevent open redirect vulnerabilities from incorrect domain matching.
• Lowercased host before TLD lookup to fix case-sensitivity issue.

Fixed

• Fixed $payload->json access on possibly-null $payload in LoginListener using null-safe operator (?->).
• Fixed validReturn() not checking false return from parse_url(), which could cause a TypeError on malformed URLs.
• Added isHit() race condition check in AcceptListener and AllowListener between hasItem() and getItem() calls.
• Added try/finally in Kernel::terminate() so parent::terminate() always runs even if persist() throws an exception.
• Added input validation to GenerateBackupCodesCommand — rejects count < 1.

Changed

• Disabled unused Symfony sessions in framework.yaml (preauth implements its own cookie/cache-based session management).
• Standardized git tag format to use v prefix (v1.0.0 instead of 1.0.0).
• Updated CI workflows to use v*.*.* tag pattern and strip v prefix for Docker image tags.
• Removed stale develop branch from CI triggers.
• Fixed publish.yaml to use git remote set-url on re-runs instead of failing when the remote already exists.
• Explicitly install curl in the Docker final image (needed for healthcheck).
• Added declare(strict_types=1) to all interface files.
• Added #[AsCommand] attribute to GenerateBackupCodesCommand.
• Fixed BackupCodeInterface default count to match implementation (10).
• Used Response::HTTP_INTERNAL_SERVER_ERROR constant in GetTotpTrait instead of literal 500.

[0.10.0] - 2026-08-11

Added

• PHP-CS-Fixer with PSR-12 configuration and CI check.

[0.9.0] - 2026-07-15

Added

• PHPUnit test suite — 222 tests, 100% code coverage (lines, methods, classes).

[0.8.1] - 2026-05-30

Fixed

• Bug fixes and cleanup from develop branch merge.

[0.8.0] - 2026-05-29

Changed

• Renamed form fields for clarity.
• Fixed invalid login bug.

[0.7.0] - 2026-05-29

Added

• Single-use backup codes via app:generate-backup-codes console command.
• Cache persistence improvement — only write changed keys to file storage.

Removed

• Static password and lookup token (security risks).

Changed

• Updated to PHP 8.5, updated dependencies.

[0.6.0] - 2026-02-10

Added

• Optional (disabled by default) ability to lookup token by static password.

[0.5.0] - 2026-01-17

Added

• Optional (disabled by default) ability to use a static password as backup auth.

Changed

• Nonce-related cleanup.

[0.4.1] - 2025-12-26

Fixed

• Bug which can occur if cache files are deleted.

[0.4.0] - 2025-12-26

Changed

• Massive rewrite to listener-based architecture instead of controllers.
• Login payload sent via X-Preauth header instead of GET request parameters.
• Enhanced cookie security.
• Removed icon system and asset system.

[0.3.0] - 2025-12-15

Changed

• Breaking: Default port and transport changed to HTTP on port 80.
• Breaking: Environment variable names have changed.
• Refactored to Symfony 7.4 with FrankenPHP.

[0.2.0] - 2025-12-03

Added

• Login rate limiting (burst + upper window).
• Error page for rate-limited clients ("too many requests").
• Example Docker Compose file.

[0.1.0] - 2025-11-14

Added

• Docker image published to Docker Hub.
• PHP-FPM based, code in src/, templates in separate files.

[0.0.1] - 2024-06-26

Notes

• Started as a single-file script in Caddy config. Hardcoded TOTP secret, zero flexibility, but functional. Ran quietly in production for about a year before any real development began.