Add detailed diagnostic log statements throughout the local authentication
path to help identify why valid local user logins are failing.
Changes:
- app/auth.py: log received username, multi_user_enabled status, LocalUser
DB lookup result, is_active status, password verification outcome, and
the specific failure reason (empty_username / wrong_password / no_match)
at every decision point. Also log form keys and Content-Type header on
empty-username failures to detect Starlette body-consumption issues.
- app/middleware/csrf.py: log Content-Type, form field names, and whether
the CSRF token was present in _get_submitted_token() to reveal if the
middleware is consuming form data before the endpoint can read it.
- app/utils/local_auth.py: verify_password() now logs DEBUG on mismatch
and WARNING (with exception type) on unexpected bcrypt errors instead
of silently swallowing exceptions.
Co-authored-by: christianlouis <361235+christianlouis@users.noreply.github.com>
- Add RequestSizeLimitMiddleware that checks Content-Length header
before request body is read: non-multipart requests capped at
MAX_REQUEST_BODY_SIZE (default 1 MB), multipart uploads capped at
MAX_UPLOAD_SIZE (default 1 GB). Returns HTTP 413 on violation.
- Register middleware in app/main.py
- Add max_request_body_size setting to app/config.py
- Fix ui_upload in files.py to check Content-Length early and read
in 64 KB chunks (bounded memory usage), removing the post-write
os.path.getsize check
- Document MAX_REQUEST_BODY_SIZE in .env.demo and ConfigurationGuide.md
- Mark SECURITY_AUDIT.md item #4 as resolved
- Add 9 tests in test_request_size_limit.py
- Update test_upload_file_too_large to use patch.object instead of
the now-unused os.path.getsize mock
Closes#173
Co-authored-by: christianlouis <361235+christianlouis@users.noreply.github.com>
copilot-swe-agent[bot]