Hyeonsang Cho 9c159ef880
fix(auth): key the compose login lockout by client, not by nginx (#6519)
* fix(auth): key the compose login lockout by client, not by nginx

Failed logins are counted per client IP, and the Gateway honors X-Real-IP
only from a peer listed in AUTH_TRUSTED_PROXIES. The compose files never
set it, and every browser request reaches the Gateway from the nginx
container, so all logins shared nginx's address: five wrong passwords
from anyone locked every user out for five minutes.

AUTH_TRUSTED_PROXIES now also accepts hostnames, resolved off the event
loop and cached for 10 seconds (failed lookups included, and only when
X-Real-IP is present), and both compose files default it to the bundled
nginx service, whose address Docker assigns. nginx overwrites X-Real-IP
with $remote_addr on every Gateway route; a test pins that for the three
maintained configs.

* docs(changelog): reference #6519

* fix(auth): share one trusted-proxy lookup across concurrent cache misses

A burst of setup-status / login requests on an expired hostname entry
started one getaddrinfo per request while DNS was slow, occupying the
default executor that password verification also uses. The cache check
and an in-flight task registration now happen without a yield between
them; later callers join that task through asyncio.shield, so a cancelled
request cannot cancel the lookup the others joined, and the task caches
its own result.

The compose default keeps `:-` on purpose: every browser request arrives
through nginx, so an empty AUTH_TRUSTED_PROXIES would only bring back the
shared lockout. The compose comment and .env.example say so, and the
rendered-compose test now covers the explicitly empty value.

* fix(docker): keep a .env AUTH_TRUSTED_PROXIES under make docker-start

docker.sh start runs Compose from docker/ without --env-file, so the dev
compose file's ${AUTH_TRUSTED_PROXIES:-nginx} interpolated from the shell
only, and the resolved environment entry outranked the operator's value
loaded through env_file. Export it from .env alongside the proxy variables
(a shell export still wins), and strip a CRLF before the quotes.

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Co-authored-by: Willem Jiang <willem.jiang@gmail.com>
2026-10-09 17:22:45 +08:00
..
2026-02-06 17:48:15 +08:00