Spike S1 — run on the target machine through real snap confinement
(apparmor snap.firefox.firefox enforced; web-ext's direct-exec of the inner
binary bypasses it, so runs were forced through `snap run firefox`):
- manifest in ~/.mozilla/native-messaging-hosts/ -> WORKS; host launched
unconfined with real $HOME and real $XDG_RUNTIME_DIR, bound a socket in
the real /run/user/<uid>. Corroborated by the machine's 1Password host.
- ~/snap/firefox/common/.mozilla/native-messaging-hosts/ -> not read
- /usr/lib/mozilla/native-messaging-hosts/ -> not read
- flatpak path -> N/A (snap Firefox)
Decision: WebSocket stays the default; native messaging is an opportunistic
upgrade taken only when its handshake succeeds. docs/05 §4 corrected in this
commit to point the snap manifest at ~/.mozilla and mark /usr/lib as
deb/tarball-only. ADR carries a self-contained reproduction; the scratch
harness has been removed.
transport/ (build order item 1):
- types.ts VeloxTransport interface + error taxonomy
- rpc.ts JSON-RPC id correlation, per-call deadline, AbortSignal
- backoff.ts exponential backoff with jitter
- discovery.ts 52000-52016 scan ordering (last-good port first)
- websocket.ts scan -> session.hello -> auto-pair (token in
storage.local) -> reconnect; -32001 fatal, refused/
rate-limited pairing latches needsPairing (no retry storm);
a mid-handshake drop aborts hello immediately
- native.ts connectNative(); distinguishes "not installed" (fatal,
lets the picker fall through) from a crash (reconnect)
- index.ts createTransport() runtime picker + persisted Options override
Toolchain: package.json / tsconfig (strict) / vitest; webextension-polyfill
mocked. 38 tests, incl. the WS suite against a real loopback ws server.
No manifest.json yet, so CI's extension-lint guard stays a no-op.
Co-Authored-By: Claude Sonnet 5 <[email protected]>
Claude-Session: https://claude.ai/code/session_012Y9RU58hD1BuwP82DySUHk
110 lines
3.5 KiB
TypeScript
110 lines
3.5 KiB
TypeScript
import { afterEach, describe, expect, it } from 'vitest';
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import { WebSocket as WsClient } from 'ws';
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import browser from 'webextension-polyfill';
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import { createTransport } from '../../src/background/transport/index.js';
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import type { WebSocketCtor } from '../../src/background/transport/websocket.js';
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import type { VeloxTransport } from '../../src/background/transport/types.js';
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import { FakeDaemon, FakeNativePort, nextPort, tick } from './helpers.js';
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const CTOR = WsClient as unknown as WebSocketCtor;
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let daemon: FakeDaemon | undefined;
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let transport: VeloxTransport | undefined;
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afterEach(async () => {
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transport?.disconnect();
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transport = undefined;
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await daemon?.stop();
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daemon = undefined;
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});
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describe('createTransport (runtime picker)', () => {
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it('override "ws" uses the WebSocket transport and never touches native messaging', async () => {
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const port = nextPort();
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daemon = await FakeDaemon.start({ port, acceptToken: null });
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let nativeTried = false;
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transport = await createTransport({
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override: 'ws',
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webSocketCtor: CTOR,
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portRange: { start: port, end: port },
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connectNative: () => {
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nativeTried = true;
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return new FakeNativePort();
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},
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backoff: { baseMs: 20, jitter: 0 },
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});
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expect(transport.kind).toBe('ws');
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expect(transport.state).toBe('connected');
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expect(nativeTried).toBe(false);
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});
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it('"auto" prefers native messaging when its handshake succeeds', async () => {
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transport = await createTransport({
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override: 'auto',
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connectNative: () => new FakeNativePort(),
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webSocketCtor: CTOR,
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portRange: { start: nextPort(), end: nextPort() },
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});
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expect(transport.kind).toBe('uds');
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expect(transport.state).toBe('connected');
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});
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it('"auto" falls back to WebSocket when the native host is not installed', async () => {
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const port = nextPort();
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daemon = await FakeDaemon.start({ port, acceptToken: null });
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transport = await createTransport({
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override: 'auto',
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webSocketCtor: CTOR,
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portRange: { start: port, end: port },
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connectNative: () => {
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const fp = new FakeNativePort({ autoHello: false });
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queueMicrotask(() => fp.fireDisconnect('No such native application com.velox.host'));
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return fp;
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},
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backoff: { baseMs: 20, jitter: 0 },
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});
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expect(transport.kind).toBe('ws');
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expect(transport.state).toBe('connected');
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});
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it('reads the override from storage when none is passed', async () => {
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await browser.storage.local.set({ 'velox.transportOverride': 'ws' });
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const port = nextPort();
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daemon = await FakeDaemon.start({ port, acceptToken: null });
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let nativeTried = false;
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transport = await createTransport({
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webSocketCtor: CTOR,
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portRange: { start: port, end: port },
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connectNative: () => {
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nativeTried = true;
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return new FakeNativePort();
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},
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backoff: { baseMs: 20, jitter: 0 },
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});
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expect(transport.kind).toBe('ws');
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expect(nativeTried).toBe(false);
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});
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it('override "uds" surfaces a native-host failure to the caller', async () => {
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await expect(
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createTransport({
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override: 'uds',
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connectNative: () => {
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const fp = new FakeNativePort({ autoHello: false });
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queueMicrotask(() => fp.fireDisconnect('No such native application com.velox.host'));
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return fp;
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},
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backoff: { baseMs: 10 },
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}),
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).rejects.toThrow(/not installed/);
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await tick(30);
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});
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});
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