hermes-agent/tests/test_docker_home_override_scripts.py
Ben fb51253620 docker: opt in to dashboard --insecure via env var, never derive from bind host
The s6 dashboard run script flipped `--insecure` on whenever
`HERMES_DASHBOARD_HOST` was anything other than 127.0.0.1 / localhost.
That comment ("the dashboard refuses otherwise") predates the OAuth
auth gate: back when it was written, `start_server` would SystemExit
on any non-loopback bind, so the run script's `--insecure` was the
only way to make in-container deployments work at all.

The gate has since been replaced by `should_require_auth(host,
allow_public)`, which engages the OAuth flow when a
`DashboardAuthProvider` is registered (the bundled `dashboard_auth/nous`
provider auto-registers on `HERMES_DASHBOARD_OAUTH_CLIENT_ID`) and
fails closed with a specific operator-facing error when none is. The
host-derived `--insecure` ran upstream of all that and silently
disabled the gate on every container-deployed dashboard.

Most visible under the portal's wildcard-subdomain rollout: every Fly
machine binds 0.0.0.0 so the edge can reach Flycast, every machine
boots with the correct `HERMES_DASHBOARD_OAUTH_CLIENT_ID`, the nous
provider registers — and `/api/status` still returns
`{"auth_required": false, "auth_providers": ["nous"]}` because the
run script disabled the gate before `start_server` ever saw the
request. The dashboard SPA was served to anyone, no `/login` redirect,
no OAuth challenge.

Fix: derive `--insecure` from an explicit opt-in env var,
`HERMES_DASHBOARD_INSECURE` (truthy values matching the rest of the
s6 boolean envs: 1, true, TRUE, True, yes, YES, Yes). Operators on
trusted LANs behind a reverse proxy without the OAuth contract
(the existing `docker-compose.windows.yml` use case) opt in
explicitly; portal-managed agent deployments leave it unset and let
the gate engage.

`docker-compose.windows.yml` already passes `--insecure` on the
`command:` array directly (line 38), so it doesn't depend on the s6
auto-injection. No compose-file change required.

Tests:
* `tests/test_docker_home_override_scripts.py` — extends the existing
  static-text guard with a regression assertion that the legacy
  host-derived case-statement is gone and the new env-var opt-in is
  present (locks against accidental revert).
* `tests/docker/test_dashboard.py` — adds two Docker-in-Docker tests
  exercising the actual `/api/status` round-trip:
  - 0.0.0.0 bind + `HERMES_DASHBOARD_OAUTH_CLIENT_ID` → gate engaged
  - 0.0.0.0 bind + `HERMES_DASHBOARD_INSECURE=1` → gate disabled

Docs:
* `website/docs/user-guide/docker.md` + zh-Hans i18n — adds the new
  env var to the table, replaces the stale prose ("the entrypoint
  no longer auto-enables insecure mode" — which until this PR was
  flat-out wrong) with an accurate description of the gate's
  trigger conditions and the explicit opt-out.

shellcheck clean. Python static-text test passes locally. Behavioural
test will run against any future image build (CI's Docker harness).
2026-05-29 09:56:40 +10:00

48 lines
1.9 KiB
Python

"""Regression tests for Docker HOME overrides under s6/with-contenv."""
from pathlib import Path
REPO_ROOT = Path(__file__).resolve().parent.parent
DASHBOARD_RUN = REPO_ROOT / "docker" / "s6-rc.d" / "dashboard" / "run"
def test_dashboard_run_resets_home_before_dropping_privileges() -> None:
text = DASHBOARD_RUN.read_text(encoding="utf-8")
assert "#!/command/with-contenv sh" in text
assert "export HOME=/opt/data" in text
assert "exec s6-setuidgid hermes hermes dashboard" in text
def test_dashboard_run_does_not_derive_insecure_from_bind_host() -> None:
"""The s6 dashboard run script MUST NOT auto-add ``--insecure`` based on
``HERMES_DASHBOARD_HOST``. Doing so disables the OAuth auth gate on
every non-loopback bind even when an auth provider is registered —
the exact regression that exposed every wildcard-subdomain agent
dashboard publicly until early 2026.
The opt-in is now explicit: ``HERMES_DASHBOARD_INSECURE=1`` (truthy).
The auth gate is the authority on whether non-loopback binds are safe.
"""
text = DASHBOARD_RUN.read_text(encoding="utf-8")
# No legacy host-derived flip.
assert '127.0.0.1|localhost' not in text, (
"Run script still derives --insecure from the bind host. The gate "
"is the authority now — opt in via HERMES_DASHBOARD_INSECURE instead."
)
assert 'case "$dash_host" in' not in text, (
"Legacy host-derived --insecure case-statement is back."
)
# New opt-in env var present.
assert "HERMES_DASHBOARD_INSECURE" in text, (
"Explicit HERMES_DASHBOARD_INSECURE opt-in is missing."
)
# Truthy values aligned with the rest of the s6 scripts
# (HERMES_DASHBOARD, HERMES_DASHBOARD_TUI).
for truthy in ("1", "true", "TRUE", "True", "yes", "YES", "Yes"):
assert truthy in text, (
f"HERMES_DASHBOARD_INSECURE should accept truthy value {truthy!r}"
)