2af57e6686
Multi-tenant reverse-tunnel service ("ngrok for Claude Code" with E2E): a
host-agent dials OUT to an operator-run relay; external devices reach the host
THROUGH the relay, routed by per-tenant subdomain, forwarding ciphertext only
(the relay never sees plaintext). Lets a customer reach their own self-hosted
web-terminal from anywhere with zero networking setup.
Packages — all tsc-strict + vitest green (656 tests), cross-package integration verified:
- relay-contracts: frozen shared contracts (mux frame codec, data model,
capability token, E2E envelope, pairing) — the src/types.ts analog
- term-relay: native WS mux + stateless data plane (subdomain routing, ciphertext forward)
- agent: host-agent (pairing, per-host Ed25519 + mTLS dial-out, forwards to 127.0.0.1:3000)
- control-plane: accounts/hosts registry, pairing-code flow, routing table, provisioning
- relay-e2e: browser<->agent E2E (X25519 ECDH through relay, AEAD, anti-replay, recoverable replay key)
- relay-auth: Passkey/WebAuthn, capability tokens, per-host certs, deny-by-default tenant isolation
- relay-web: browser login + Web Crypto E2E + client-side preview rendering
Security invariants INV1-15 enforced; cross-tenant isolation CI tripwire live
(.github/workflows/relay-tripwire.yml). Design + implementation-level plans in
docs/PLAN_RELAY_*.md and docs/EXPLORE_RELAY_SERVICE.md.
NOTE: generated autonomously per the reviewed plans. The security-critical
packages (relay-e2e, relay-auth) REQUIRE expert security audit before any real
deployment — passing tests prove self-consistency, not resistance to attackers.
Base app (src/, public/) unchanged; concurrent desktop work left uncommitted.
69 lines
2.3 KiB
TypeScript
69 lines
2.3 KiB
TypeScript
import { describe, test, expect } from 'vitest'
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import {
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createFlowController,
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DEFAULT_INITIAL_WINDOW,
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WINDOW_REPLENISH_THRESHOLD,
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} from '../mux/flow-control.js'
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describe('credit flow control (T4, §4.1)', () => {
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test('canSend true until credit exhausted, then false; never negative', () => {
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const fc = createFlowController()
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fc.registerStream(1, 100)
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expect(fc.canSend(1, 100)).toBe(true)
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fc.consumeSendCredit(1, 100)
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expect(fc.creditFor(1)).toBe(0)
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expect(fc.canSend(1, 1)).toBe(false)
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// Over-consume never drives credit negative.
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fc.consumeSendCredit(1, 50)
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expect(fc.creditFor(1)).toBe(0)
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})
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test('grantCredit unblocks a backpressured stream', () => {
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const fc = createFlowController()
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fc.registerStream(1, 10)
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fc.consumeSendCredit(1, 10)
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expect(fc.canSend(1, 5)).toBe(false)
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fc.grantCredit(1, 20)
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expect(fc.canSend(1, 5)).toBe(true)
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expect(fc.creditFor(1)).toBe(20)
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})
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test('onDelivered returns a replenish amount only once the threshold is crossed', () => {
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const fc = createFlowController()
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fc.registerStream(1, 100) // threshold = 50 bytes
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expect(fc.onDelivered(1, 40)).toBe(0)
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const replenish = fc.onDelivered(1, 20) // cumulative 60 ≥ 50
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expect(replenish).toBe(60)
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// Counter reset after replenish.
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expect(fc.onDelivered(1, 10)).toBe(0)
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})
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test('unknown streamId is deny-by-default: canSend false, creditFor 0', () => {
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const fc = createFlowController()
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expect(fc.canSend(999, 1)).toBe(false)
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expect(fc.creditFor(999)).toBe(0)
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expect(fc.onDelivered(999, 100)).toBe(0)
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})
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test('released streams carry no credit (send-after-close is denied)', () => {
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const fc = createFlowController()
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fc.registerStream(1, 100)
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fc.releaseStream(1)
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expect(fc.canSend(1, 1)).toBe(false)
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})
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test('per-stream isolation: exhausting A does not affect B (no cross-stream starvation)', () => {
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const fc = createFlowController()
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fc.registerStream(1, 50)
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fc.registerStream(2, 50)
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fc.consumeSendCredit(1, 50)
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expect(fc.canSend(1, 1)).toBe(false)
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expect(fc.canSend(2, 50)).toBe(true) // B untouched
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})
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test('exposes the documented constants', () => {
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expect(DEFAULT_INITIAL_WINDOW).toBe(256 * 1024)
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expect(WINDOW_REPLENISH_THRESHOLD).toBe(0.5)
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})
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})
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