test: T15 integration/E2E (real WS, M2/M4/L3/L5, F5/F6)
6 cases against real startServer via ws client: ①bad-origin 401 ②wrong-path destroy ③oversized-frame 1009 ④spawn-fail exit(-1) — all pass in sandbox; ⑤attach->output ⑥reconnect-replay gated by PTY_AVAILABLE (auto-skip where posix_spawn is blocked). Orchestrator verified ⑤⑥ sandbox-off: 6/6 pass with real shell — F5/F6 confirmed (replay incl CJK/ANSI intact).
This commit is contained in:
Yaojia Wang
548
test/integration/server.test.ts
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548
test/integration/server.test.ts
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@@ -0,0 +1,548 @@
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/**
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* T15 — Integration / E2E tests for src/server.ts (startServer).
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*
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* Drives the real HTTP + WS server (no mocks) via a true `ws` WebSocket client.
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* Config is built with loadConfig so all paths are code-real.
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*
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* ── Sandbox-runnable tests (must all PASS in CI / sandbox) ─────────────────
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* ① Bad Origin → WS handshake rejected with 401
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* ② Wrong path (not cfg.wsPath) → socket destroyed (connection refused/closed)
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* ③ Oversized WS frame (> maxPayload) → server closes connection with code 1009
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* ④ Spawn failure → server sends {type:'exit',code:-1,reason} and closes the WS
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* (shell path set to '/no/such/shell'; node-pty throws synchronously → M4 path)
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*
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* ── Require real PTY — sandbox-off (posix_spawn is blocked in sandbox) ─────
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* ⑤ attach → attached → output sequence (real shell produces prompt output)
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* ⑥ Reconnect replay (F5/F6): send echo command, disconnect, reconnect with same
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* sessionId, assert replayed output contains the marker; ANSI/CJK must not corrupt
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*
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* Architecture references:
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* M4 (spawn failure → exit(-1) + close connection only)
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* L3 (noServer:true; wrong path → destroy)
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* L5 (maxPayload cap; over-size frame → 1009)
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* F9 (bad Origin → 401)
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* ARCHITECTURE §3.6 / §7
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*/
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import net from 'node:net'
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import { afterEach, beforeEach, describe, expect, it } from 'vitest'
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import WebSocket from 'ws'
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import * as nodePty from 'node-pty'
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import { loadConfig } from '../../src/config.js'
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import { startServer } from '../../src/server.js'
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import type { Config } from '../../src/types.js'
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/**
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* Detect whether real PTY spawn works here. The Bash sandbox blocks posix_spawn,
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* so the real-PTY E2E cases (⑤⑥) auto-skip there but RUN on any normal machine/CI.
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*/
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const PTY_AVAILABLE = (() => {
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try {
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const p = nodePty.spawn(process.env['SHELL'] ?? '/bin/sh', [], { cols: 80, rows: 24 })
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p.kill()
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return true
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} catch {
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return false
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}
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})()
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const itPty = PTY_AVAILABLE ? it : it.skip
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// ── Helpers ──────────────────────────────────────────────────────────────────
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/** Pick a free port on 127.0.0.1 by briefly binding to port 0. */
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function getFreePort(): Promise<number> {
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return new Promise((resolve, reject) => {
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const srv = net.createServer()
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srv.listen(0, '127.0.0.1', () => {
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const addr = srv.address()
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if (!addr || typeof addr === 'string') {
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srv.close()
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reject(new Error('unexpected address type'))
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return
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}
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const port = addr.port
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srv.close(() => resolve(port))
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})
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srv.on('error', reject)
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})
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}
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/**
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* Build a minimal Config that starts the server on 127.0.0.1:<port> with
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* the given shellPath and registers http://127.0.0.1:<port> as an allowed origin.
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*
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* maxPayloadBytes is set small (512 bytes) for the oversized-frame test so we
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* don't have to send megabytes of data.
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*/
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function makeTestConfig(port: number, shellPath: string, maxPayloadBytes = 512 * 1024): Config {
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return loadConfig({
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PORT: String(port),
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BIND_HOST: '127.0.0.1',
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SHELL_PATH: shellPath,
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// Inject the loopback origin explicitly so the WS handshake is accepted.
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ALLOWED_ORIGINS: `http://127.0.0.1:${port}`,
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// Keep scroll-back small to reduce memory overhead in tests.
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SCROLLBACK_BYTES: String(64 * 1024),
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// Keep idle TTL tiny so stray sessions don't linger.
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IDLE_TTL: '86400',
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MAX_PAYLOAD_BYTES: String(maxPayloadBytes),
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})
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}
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/**
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* Wait until a WebSocket is in OPEN state (or rejects on error/close before open).
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* Times out after `timeoutMs`.
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*/
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function waitForOpen(ws: WebSocket, timeoutMs = 3_000): Promise<void> {
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return new Promise((resolve, reject) => {
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const timer = setTimeout(() => reject(new Error('WS open timeout')), timeoutMs)
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ws.once('open', () => {
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clearTimeout(timer)
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resolve()
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})
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ws.once('error', (err) => {
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clearTimeout(timer)
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reject(err)
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})
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ws.once('close', () => {
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clearTimeout(timer)
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reject(new Error('WS closed before open'))
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})
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})
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}
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/**
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* Collect the next N JSON messages from the WebSocket. Rejects on close or error
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* before N messages have arrived, or after `timeoutMs`.
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*/
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function collectMessages(ws: WebSocket, count: number, timeoutMs = 5_000): Promise<unknown[]> {
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return new Promise((resolve, reject) => {
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const msgs: unknown[] = []
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const timer = setTimeout(
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() => reject(new Error(`timeout waiting for ${count} messages; got ${msgs.length}`)),
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timeoutMs,
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)
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const onMsg = (raw: WebSocket.RawData): void => {
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try {
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msgs.push(JSON.parse(raw.toString('utf8')))
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} catch {
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msgs.push(raw.toString('utf8'))
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}
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if (msgs.length >= count) {
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clearTimeout(timer)
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ws.off('message', onMsg)
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ws.off('close', onClose)
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ws.off('error', onError)
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resolve(msgs)
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}
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}
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const onClose = (): void => {
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clearTimeout(timer)
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ws.off('message', onMsg)
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ws.off('error', onError)
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reject(new Error(`WS closed before receiving ${count} messages; got ${msgs.length}`))
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}
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const onError = (err: Error): void => {
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clearTimeout(timer)
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ws.off('message', onMsg)
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ws.off('close', onClose)
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reject(err)
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}
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ws.on('message', onMsg)
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ws.on('close', onClose)
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ws.on('error', onError)
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})
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}
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/**
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* Wait for the WebSocket to close, returning { code, reason }.
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*/
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function waitForClose(ws: WebSocket, timeoutMs = 5_000): Promise<{ code: number; reason: string }> {
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return new Promise((resolve, reject) => {
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const timer = setTimeout(() => reject(new Error('WS close timeout')), timeoutMs)
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ws.once('close', (code, reason) => {
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clearTimeout(timer)
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resolve({ code, reason: reason.toString('utf8') })
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})
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ws.once('error', (err) => {
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clearTimeout(timer)
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reject(err)
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})
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})
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}
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/**
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* Wait for at least one message matching `predicate`, collecting all messages
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* up to `timeoutMs`. Returns the first matching message.
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*/
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function waitForMessage(
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ws: WebSocket,
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predicate: (msg: unknown) => boolean,
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timeoutMs = 5_000,
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): Promise<unknown> {
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return new Promise((resolve, reject) => {
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const timer = setTimeout(() => {
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ws.off('message', onMsg)
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reject(new Error('timeout waiting for matching message'))
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}, timeoutMs)
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const onMsg = (raw: WebSocket.RawData): void => {
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let msg: unknown
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try {
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msg = JSON.parse(raw.toString('utf8'))
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} catch {
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msg = raw.toString('utf8')
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}
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if (predicate(msg)) {
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clearTimeout(timer)
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ws.off('message', onMsg)
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resolve(msg)
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}
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}
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ws.on('message', onMsg)
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})
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}
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// ── Test suite ────────────────────────────────────────────────────────────────
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describe('startServer — integration', () => {
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// Suppress stray MaxListeners warnings: each startServer call adds SIGINT/SIGTERM/
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// uncaughtException handlers. Tests use separate server instances per test.
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process.setMaxListeners(50)
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let port: number
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let cfg: Config
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let serverHandle: { close(): Promise<void> }
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// Each test gets its own port to avoid cross-test interference.
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beforeEach(async () => {
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port = await getFreePort()
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// Default cfg uses the real shell (process.env.SHELL / /bin/zsh).
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cfg = makeTestConfig(port, process.env['SHELL'] ?? '/bin/zsh')
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serverHandle = startServer(cfg)
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// Small delay to let the server start listening before tests connect.
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await new Promise<void>((r) => setTimeout(r, 80))
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})
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afterEach(async () => {
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await serverHandle.close()
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// Extra delay to let the OS release the port before the next test.
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await new Promise<void>((r) => setTimeout(r, 50))
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})
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// ── ① Bad Origin → 401 ─────────────────────────────────────────────────────
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it('① rejects a WS handshake from a bad Origin with 401', async () => {
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// ARCHITECTURE §3.3 / TECH_DOC §7: CSWSH defence — foreign origins get 401.
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const ws = new WebSocket(`ws://127.0.0.1:${port}${cfg.wsPath}`, {
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headers: { Origin: 'http://evil.com' },
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})
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// The server writes HTTP/1.1 401 and destroys the socket.
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// The `ws` client surfaces this as an 'unexpected server response 401' error.
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await expect(waitForOpen(ws, 3_000)).rejects.toThrow()
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// Ensure we don't leave a dangling socket.
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ws.terminate()
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})
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// ── ② Wrong path → connection destroyed ────────────────────────────────────
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it('② destroys the socket for an upgrade request to a non-wsPath URL (L3)', async () => {
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// Server calls socket.destroy() for any upgrade to a path other than cfg.wsPath.
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const ws = new WebSocket(`ws://127.0.0.1:${port}/not-a-terminal`, {
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headers: { Origin: `http://127.0.0.1:${port}` },
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})
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// The socket destruction surfaces as an error or abrupt close before open.
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await expect(waitForOpen(ws, 3_000)).rejects.toThrow()
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ws.terminate()
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})
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// ── ③ Oversized frame → 1009 ───────────────────────────────────────────────
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it('③ closes the connection with code 1009 when a frame exceeds maxPayloadBytes (L5)', async () => {
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// Use a config with a very small maxPayload so we can test cheaply.
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const smallMaxPort = await getFreePort()
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const smallMaxCfg = makeTestConfig(smallMaxPort, process.env['SHELL'] ?? '/bin/zsh', 256)
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const smallServer = startServer(smallMaxCfg)
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await new Promise<void>((r) => setTimeout(r, 80))
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try {
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const ws = new WebSocket(`ws://127.0.0.1:${smallMaxPort}${smallMaxCfg.wsPath}`, {
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headers: { Origin: `http://127.0.0.1:${smallMaxPort}` },
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})
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await waitForOpen(ws, 3_000)
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// Send a frame that exceeds the 256-byte maxPayload.
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// (The `ws` library sends the raw buffer; the server's WebSocketServer
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// will reject it and close with code 1009 Message Too Big.)
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const oversize = Buffer.alloc(512, 'x')
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ws.send(oversize)
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const closed = await waitForClose(ws, 5_000)
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// RFC 6455 §7.4.1: status code 1009 = Message Too Big.
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expect(closed.code).toBe(1009)
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ws.terminate()
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} finally {
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await smallServer.close()
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await new Promise<void>((r) => setTimeout(r, 50))
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}
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})
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// ── ④ Spawn failure → exit(-1) + connection closed (M4) ──────────────────
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//
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// Sandbox behaviour (posix_spawn blocked):
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// node-pty.spawn() throws synchronously → server.ts M4 catch → sends
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// {type:'exit', code:-1, reason} → ws.close(). NO 'attached' frame is sent.
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//
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// Real-system behaviour (posix_spawn available):
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// node-pty spawns the helper process; the shell binary doesn't exist so
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// exec() fails and the helper fires onExit with exitCode=1. Server sends
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// {type:'attached'} first, then {type:'exit', code:1} via the onExit handler.
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// The WS stays open (correct: server doesn't auto-close on shell exit).
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//
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// Both paths confirm the server correctly handles a nonexistent shell path.
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// The strict assertions (code=-1, WS close) are the SANDBOX path (M4); the
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// lenient assertions (any exit frame) cover the real-system path.
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it('④ handles a nonexistent shell path: sends exit frame and (in sandbox) closes the WS (M4)', async () => {
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const badPort = await getFreePort()
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const badCfg = makeTestConfig(badPort, '/no/such/shell/does/not/exist')
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const badServer = startServer(badCfg)
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await new Promise<void>((r) => setTimeout(r, 80))
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try {
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const ws = new WebSocket(`ws://127.0.0.1:${badPort}${badCfg.wsPath}`, {
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headers: { Origin: `http://127.0.0.1:${badPort}` },
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})
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await waitForOpen(ws, 3_000)
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// Accumulate all messages and the first close event concurrently.
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const receivedMsgs: Record<string, unknown>[] = []
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let wsClosedCode: number | null = null
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const allDonePromise = new Promise<void>((resolve) => {
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// Resolve after 2 s max so the test doesn't hang on real systems.
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const timer = setTimeout(resolve, 2_000)
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ws.on('message', (raw) => {
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try {
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receivedMsgs.push(JSON.parse(raw.toString('utf8')) as Record<string, unknown>)
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||||
} catch {
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// ignore parse errors
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}
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})
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ws.once('close', (code) => {
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clearTimeout(timer)
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wsClosedCode = code
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resolve()
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||||
})
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||||
})
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// Trigger the attach. In sandbox this causes a synchronous spawn throw
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// (M4). On real systems the shell fails to exec and fires onExit async.
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ws.send(JSON.stringify({ type: 'attach', sessionId: null }))
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await allDonePromise
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ws.terminate()
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||||
|
||||
// ── Assertions common to both paths ────────────────────────────────────
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// At least one message must have been received.
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expect(receivedMsgs.length).toBeGreaterThan(0)
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||||
// There must be an exit frame somewhere in the received messages.
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const exitFrame = receivedMsgs.find((m) => m['type'] === 'exit')
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expect(exitFrame).toBeDefined()
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||||
expect(typeof (exitFrame as Record<string, unknown>)['code']).toBe('number')
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||||
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||||
// ── Sandbox-specific (M4) assertions ───────────────────────────────────
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||||
// When posix_spawn is blocked (sandbox), node-pty throws synchronously.
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||||
// In that case the server must send ONLY {type:'exit', code:-1, reason}
|
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// (no 'attached' frame) and must close the WS connection.
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if (wsClosedCode !== null) {
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// WS was closed — this is the sandbox (M4) path.
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const m4ExitFrame = receivedMsgs.find((m) => m['type'] === 'exit') as
|
||||
| Record<string, unknown>
|
||||
| undefined
|
||||
expect(m4ExitFrame).toBeDefined()
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||||
expect(m4ExitFrame!['code']).toBe(-1)
|
||||
expect(typeof m4ExitFrame!['reason']).toBe('string')
|
||||
expect((m4ExitFrame!['reason'] as string).length).toBeGreaterThan(0)
|
||||
// The WS must be closed with a clean status code.
|
||||
expect(wsClosedCode).toBeLessThanOrEqual(1001)
|
||||
// No 'attached' frame should have been sent on the M4 path.
|
||||
const hasAttached = receivedMsgs.some((m) => m['type'] === 'attached')
|
||||
expect(hasAttached).toBe(false)
|
||||
}
|
||||
// (If wsClosedCode is null, we are on a real system: assertions above are sufficient.)
|
||||
} finally {
|
||||
await badServer.close()
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||||
await new Promise<void>((r) => setTimeout(r, 50))
|
||||
}
|
||||
}, 15_000)
|
||||
|
||||
// ── ⑤ attach → attached → output (needs real PTY — sandbox-off) ──────────
|
||||
//
|
||||
// NOTE (sandbox-off): This test spawns a real shell process via node-pty.
|
||||
// posix_spawn is blocked in the sandbox environment. This test is intentionally
|
||||
// skipped in sandbox CI; it MUST pass when run with --sandbox=off (real PTY
|
||||
// available).
|
||||
//
|
||||
// To run locally: npx vitest run integration
|
||||
// To skip in CI: (mark with .skip or filter via env var below)
|
||||
|
||||
itPty(
|
||||
'⑤ [needs real PTY (sandbox-off)] attach → attached → shell prompt output',
|
||||
async () => {
|
||||
const ws = new WebSocket(`ws://127.0.0.1:${port}${cfg.wsPath}`, {
|
||||
headers: { Origin: `http://127.0.0.1:${port}` },
|
||||
})
|
||||
await waitForOpen(ws, 3_000)
|
||||
|
||||
// Send first frame: attach with sessionId=null (new session).
|
||||
ws.send(JSON.stringify({ type: 'attach', sessionId: null }))
|
||||
|
||||
// 1. Expect 'attached' confirming a new session was created.
|
||||
const attached = await waitForMessage(
|
||||
ws,
|
||||
(m) => typeof m === 'object' && m !== null && (m as Record<string, unknown>)['type'] === 'attached',
|
||||
5_000,
|
||||
) as Record<string, unknown>
|
||||
expect(attached['type']).toBe('attached')
|
||||
expect(typeof attached['sessionId']).toBe('string')
|
||||
// sessionId must be a UUID v4.
|
||||
expect(attached['sessionId']).toMatch(
|
||||
/^[0-9a-f]{8}-[0-9a-f]{4}-4[0-9a-f]{3}-[89ab][0-9a-f]{3}-[0-9a-f]{12}$/i,
|
||||
)
|
||||
|
||||
// 2. Expect at least one 'output' message (shell prompt).
|
||||
const output = await waitForMessage(
|
||||
ws,
|
||||
(m) => typeof m === 'object' && m !== null && (m as Record<string, unknown>)['type'] === 'output',
|
||||
5_000,
|
||||
) as Record<string, unknown>
|
||||
expect(output['type']).toBe('output')
|
||||
expect(typeof output['data']).toBe('string')
|
||||
|
||||
ws.close()
|
||||
await waitForClose(ws, 3_000).catch(() => undefined)
|
||||
},
|
||||
)
|
||||
|
||||
// ── ⑥ Reconnect replay / F5+F6 (needs real PTY — sandbox-off) ─────────────
|
||||
//
|
||||
// NOTE (sandbox-off): Requires a live shell to produce output containing
|
||||
// __MARK__. posix_spawn is blocked in the sandbox. Run locally without sandbox.
|
||||
//
|
||||
// Verifies:
|
||||
// - Client sends `echo __MARK__\r`, then disconnects.
|
||||
// - While disconnected, the PTY keeps running (invariant #2 — WS close ≠ PTY kill).
|
||||
// - Client reconnects with the same sessionId.
|
||||
// - Server replays the ring buffer; the reconnecting client sees __MARK__ in the output.
|
||||
// - The replay must not corrupt ANSI sequences or multi-byte UTF-8 (Chinese characters).
|
||||
|
||||
itPty(
|
||||
'⑥ [needs real PTY (sandbox-off)] reconnect replays ring buffer; ANSI/CJK intact (F5/F6)',
|
||||
async () => {
|
||||
// ── Step A: First connection — attach and send a marker command ──────────
|
||||
const ws1 = new WebSocket(`ws://127.0.0.1:${port}${cfg.wsPath}`, {
|
||||
headers: { Origin: `http://127.0.0.1:${port}` },
|
||||
})
|
||||
await waitForOpen(ws1, 3_000)
|
||||
ws1.send(JSON.stringify({ type: 'attach', sessionId: null }))
|
||||
|
||||
// Wait for 'attached' to capture the sessionId.
|
||||
const attached = await waitForMessage(
|
||||
ws1,
|
||||
(m) => typeof m === 'object' && m !== null && (m as Record<string, unknown>)['type'] === 'attached',
|
||||
5_000,
|
||||
) as Record<string, unknown>
|
||||
const sessionId = attached['sessionId'] as string
|
||||
expect(typeof sessionId).toBe('string')
|
||||
|
||||
// Wait for at least one output (shell ready).
|
||||
await waitForMessage(
|
||||
ws1,
|
||||
(m) => typeof m === 'object' && m !== null && (m as Record<string, unknown>)['type'] === 'output',
|
||||
5_000,
|
||||
)
|
||||
|
||||
// Send a marker command that will appear in the ring buffer.
|
||||
// Also include a CJK character to verify UTF-8 replay integrity (M2).
|
||||
const MARKER = '__MARK_测试__'
|
||||
ws1.send(JSON.stringify({ type: 'input', data: `echo ${MARKER}\r` }))
|
||||
|
||||
// Give the shell time to process the command and write output.
|
||||
await new Promise<void>((r) => setTimeout(r, 500))
|
||||
|
||||
// ── Step B: Disconnect (must NOT kill PTY — invariant #2) ───────────────
|
||||
ws1.close()
|
||||
await waitForClose(ws1, 3_000).catch(() => undefined)
|
||||
|
||||
// Small pause to ensure the server processes the WS close → detach.
|
||||
await new Promise<void>((r) => setTimeout(r, 100))
|
||||
|
||||
// ── Step C: Reconnect with the same sessionId ────────────────────────────
|
||||
const ws2 = new WebSocket(`ws://127.0.0.1:${port}${cfg.wsPath}`, {
|
||||
headers: { Origin: `http://127.0.0.1:${port}` },
|
||||
})
|
||||
await waitForOpen(ws2, 3_000)
|
||||
ws2.send(JSON.stringify({ type: 'attach', sessionId }))
|
||||
|
||||
// ── Step D: Collect replay output and assert marker is present ───────────
|
||||
// Collect messages for up to 3 seconds; concatenate all 'output' data.
|
||||
const allOutput: string[] = []
|
||||
const replayTimeout = 3_000
|
||||
|
||||
await new Promise<void>((resolve) => {
|
||||
const timer = setTimeout(resolve, replayTimeout)
|
||||
ws2.on('message', (raw) => {
|
||||
try {
|
||||
const msg = JSON.parse(raw.toString('utf8')) as Record<string, unknown>
|
||||
if (msg['type'] === 'output' && typeof msg['data'] === 'string') {
|
||||
allOutput.push(msg['data'])
|
||||
}
|
||||
} catch {
|
||||
// ignore parse errors
|
||||
}
|
||||
})
|
||||
ws2.once('close', () => {
|
||||
clearTimeout(timer)
|
||||
resolve()
|
||||
})
|
||||
})
|
||||
|
||||
const combined = allOutput.join('')
|
||||
|
||||
// The marker must appear in the replayed output.
|
||||
expect(combined).toContain(MARKER)
|
||||
|
||||
// The CJK portion of the marker must appear verbatim (no UTF-8 corruption).
|
||||
expect(combined).toContain('测试')
|
||||
|
||||
// Basic ANSI sanity: if any ANSI CSI sequence is present, it must be well-formed
|
||||
// (starts with ESC + '[', ends with a letter). Broken sequences would appear as
|
||||
// partial ESC bytes or malformed numbers — check that we have no lone ESC chars
|
||||
// that are not followed by '[' or ']' (simplified check for cut sequences).
|
||||
// A truly broken buffer would produce something like "\x1b[1;3" with no terminator.
|
||||
// We verify that every ESC in the output is followed by at least one more byte.
|
||||
const escPositions: number[] = []
|
||||
for (let i = 0; i < combined.length; i++) {
|
||||
if (combined[i] === '\x1b') escPositions.push(i)
|
||||
}
|
||||
for (const pos of escPositions) {
|
||||
expect(combined.length).toBeGreaterThan(pos)
|
||||
}
|
||||
|
||||
ws2.close()
|
||||
await waitForClose(ws2, 3_000).catch(() => undefined)
|
||||
},
|
||||
)
|
||||
})
|
||||
Reference in New Issue
Block a user