`_supervise_token_block` and `_await_token_response` called the synchronous
`PolicyResolver` directly from mitmproxy's async request handling. Those RPCs
funnel through `PolicyResolver._post_json`, which blocks on
`urllib.request.urlopen`. Because the poll loop runs for the entire
operator-approval window, a slow or unreachable orchestrator would repeatedly
freeze the proxy event loop — stalling every other bottle's traffic — despite
`_await_token_response`'s contract of not blocking the loop (#471 review,
review #443).
Dispatch both the propose and poll RPCs via `asyncio.to_thread` so the
blocking urllib call runs in a worker thread and the event loop keeps serving
other flows. Fail-closed semantics are unchanged: `PolicyResolveError` still
propagates through the await and is caught exactly as before.
Regression test records the thread each RPC executes on and asserts it is not
the loop thread; it fails against the pre-fix inline calls and passes with the
dispatch. Full egress-addon + policy-resolver + supervise-server suites green
(155 tests).
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
Group the gateway's data-plane modules into three service sub-packages
mirroring the host-side trio (bot_bottle.egress / .supervisor / .git_gate):
gateway/egress/ addon_core, addon, dlp_config, dlp_detectors
gateway/supervisor/ server (was supervise_server)
gateway/git_gate/ render, http_backend
Prefix-stripped filenames now that the package namespaces them; each
sub-package has a thin docstring __init__ (no eager imports, cheap leaf
loads). The two cross-cutting files stay at the gateway root:
policy_resolver (shared per-client lookup) and gateway_init, renamed to
bootstrap now that gateway/ already namespaces it.
Updated all importers (bot_bottle + tests), the in-VM/container `-m`
launch strings, the Dockerfile.gateway addon shim + ENTRYPOINT, and the
five gateway entries in scripts/critical-modules.txt. Full unit suite
green (2243).
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
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didericis