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.
75 lines
2.5 KiB
TypeScript
75 lines
2.5 KiB
TypeScript
import { describe, expect, it, vi } from 'vitest'
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import { encodeBase64UrlBytes } from 'relay-contracts'
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import {
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base64UrlToBuffer,
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bufferToBase64Url,
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createWebAuthnClient,
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WebAuthnError,
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} from '../src/webauthn'
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function ab(bytes: number[]): ArrayBuffer {
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return new Uint8Array(bytes).buffer
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}
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const assertionCred = {
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id: 'cred-1',
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type: 'public-key',
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rawId: ab([1, 2, 3]),
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response: {
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clientDataJSON: ab([4, 5]),
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authenticatorData: ab([6]),
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signature: ab([7, 8]),
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userHandle: null,
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},
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}
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describe('webauthn wrapper (T7)', () => {
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it('base64url ↔ ArrayBuffer round-trip is lossless', () => {
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const bytes = [0, 1, 250, 255, 128, 64]
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const b64u = bufferToBase64Url(ab(bytes))
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expect(new Uint8Array(base64UrlToBuffer(b64u))).toEqual(new Uint8Array(bytes))
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})
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it('authenticate maps the assertion to base64url fields', async () => {
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const container = {
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get: vi.fn(async () => assertionCred),
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create: vi.fn(),
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} as unknown as CredentialsContainer
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const wa = createWebAuthnClient(container)
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const res = await wa.authenticate({ challenge: ab([9]) } as PublicKeyCredentialRequestOptions)
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expect(res.rawId).toBe(encodeBase64UrlBytes(new Uint8Array([1, 2, 3])))
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expect(res.response.signature).toBe(encodeBase64UrlBytes(new Uint8Array([7, 8])))
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expect(res.response.userHandle).toBeNull()
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})
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it('a user-cancelled prompt (NotAllowedError) maps to WebAuthnError("cancelled")', async () => {
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const container = {
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get: vi.fn(async () => {
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throw Object.assign(new Error('dismissed'), { name: 'NotAllowedError' })
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}),
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create: vi.fn(),
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} as unknown as CredentialsContainer
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const wa = createWebAuthnClient(container)
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await expect(
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wa.authenticate({ challenge: ab([1]) } as PublicKeyCredentialRequestOptions),
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).rejects.toMatchObject({ name: 'WebAuthnError', kind: 'cancelled' })
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})
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it('throws WebAuthnError("unsupported") when no credentials container is available', () => {
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expect(() => createWebAuthnClient(undefined)).toThrow(WebAuthnError)
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})
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it('does not leak credential material to console', async () => {
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const spy = vi.spyOn(console, 'log').mockImplementation(() => {})
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const container = {
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get: vi.fn(async () => assertionCred),
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create: vi.fn(),
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} as unknown as CredentialsContainer
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await createWebAuthnClient(container).authenticate({
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challenge: ab([1]),
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} as PublicKeyCredentialRequestOptions)
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expect(spy).not.toHaveBeenCalled()
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spy.mockRestore()
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})
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})
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