Files
vdm/extension
samiandClaude Sonnet 5 23407974d2 ext: capture/index.ts — blocking onHeadersReceived hook, fail-open
For a response shouldCapture() likes: gather cookies, offer to the daemon
under a hard 750 ms budget, and return {cancel:true} ONLY on an explicit
{action:"take"}. Every other outcome — shouldCapture says no, daemon down /
slow / erroring, cookies fail, anything throws — resolves to {} and Firefox
downloads normally.

Fail-open tests written first (tests/capture/hook.test.ts): offer() rejects,
offer() never settles (resolves within budget), timeout-shaped rejection,
getRules() throws, malformed details. Plus the happy paths and a check that
the capture.offer payload is well-formed from details + stash + headers.

background/index.ts: wire the stash + hook onto browser.webRequest, mirror
capture rules via capture.getRules on connect and on a capture.* settings
change; DEFAULT_CAPTURE_RULES (enabled:false) until the first mirror lands.

84 tests green; web-ext lint clean.

Co-Authored-By: Claude Sonnet 5 <[email protected]>
Claude-Session: https://claude.ai/code/session_012Y9RU58hD1BuwP82DySUHk
2026-09-10 15:35:29 +04:00
..

Owner: lane EXT. See ../docs/agents/AGENT-EXT.md and ../docs/05-extension-spec.md. Firefox MV3, TypeScript. Zero download logic.

Layout

src/background/transport/   Transport interface + WebSocket and native-messaging impls,
                            runtime picker. See docs/adr/0003 for why there are two.
src/shared/protocol/        GENERATED from ../contracts — never hand-edit.
tests/                      vitest; webextension-polyfill is mocked in tests/setup.ts.

Develop

npm ci
npm run typecheck        # tsc --noEmit, strict
npm test                 # vitest run
npm run lint             # web-ext lint (AMO rules) — needs manifest.json

Build against tools/mockd over the WebSocket transport; veloxd is not required.

Transport quick start

import { createTransport } from './src/background/transport/index.js';

const t = await createTransport();            // reads the Options override; default 'auto'
t.onStateChange((s) => renderDot(s));
const rules = await t.call('capture.getRules', {});

createTransport resolves with a live, self-reconnecting transport. When veloxd is not up yet it still resolves (WebSocket, status disconnected, retrying) — callers render the red dot. It rejects only when the user explicitly forced native messaging and that failed. Capture code treats every call() rejection as fail-open.