Addresses round-3 review feedback on PR #747:
- webhook_receiver: wrap send_stream.send() in anyio.fail_after(1.0)
and return 503 with reason="queue full" if the queue is saturated.
Avoids pinning the handler until NC's outbound timeout fires; the
503 retry contract is the same as the existing "sync not running"
branch.
- webhook_receiver: revise the compare_digest comment to match what
the function actually guarantees — it avoids the per-character
short-circuit of `==` but is not fully constant-time across length
differences.
- _get_webhook_uri: read WEBHOOK_INTERNAL_URL and
NEXTCLOUD_MCP_SERVER_URL via dynaconf so operators using
settings.toml (rather than env vars) aren't silently routed into
the docker/localhost fallback. Adds webhook_internal_url to
Settings/_DEFAULTS/_field_map; nextcloud_mcp_server_url already
existed. Docker-detection markers stay on os.getenv since they're
container-runtime signals, not user-facing config.
- webhook_routes: sweep remaining f-string logger calls to lazy %s
formatting per CLAUDE.md.
- client/webhooks: modernise full file's type hints to
dict / list / | None per CLAUDE.md.
Tests:
- New test_returns_503_when_queue_is_full exercises the timeout
branch with a saturated buffer and a shortened deadline.
- test_webhook_uri tests now patch get_settings (matching the
auth-pair tests in the same file) instead of monkeypatching env
vars directly.
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
