fix(pr-77): apply Copilot/Codex review corrections with Protocol de Blindagem
Applies all 9 critical issues identified by Copilot/Codex reviewers on PR #77. All fixes follow Protocol de Blindagem methodology: - Boundary Analysis - Invariant Verification - Data Flow Tracking - Edge Mitigation - Semantic Distrust ## CRITICAL FIXES ### 1. Auto-Reconnect Implementation BROKEN (socket.ts:1369-1409) **Issue:** Using `await end()` + `await connect()` breaks recovery. **Root Cause:** - `end()` sets `closed = true` permanently - `connect()` function does not exist in makeSocket() return - Pattern: consumers call `makeWASocket()` to recreate socket **Fix:** - Removed internal reconnect logic - Emit `connection.update` with `isSessionError: true` flag - Consumer detects and recreates socket with makeWASocket() - Added `isSessionError` to ConnectionState type (State.ts) **Invariants Verified:** ✅ Socket cannot reconnect itself (must be recreated) ✅ Consumer pattern: makeWASocket() on close event ✅ Example.ts shows correct pattern (line 84) ### 2. Memory Leak - PreKey Auto-Sync Listener (socket.ts:774-787) **Issue:** Event listener never removed, memory leak on repeated socket creation. **Fix:** - Store listener reference in `connectionHandler` - Return cleanup function from `startPreKeyAutoSync()` - Call `cleanupPreKeyAutoSync()` in `end()` function - Cleanup both listener AND timer **Invariants Verified:** ✅ Listener removed via `ev.off()` ✅ Timer cleared via `clearTimeout()` ✅ Called in end() before ws listeners removed ### 3. Memory Leak - Session TTL Listener (socket.ts:813-848) **Issue:** Event listener never removed, memory leak on repeated socket creation. **Fix:** - Store listener reference in `connectionHandler` - Return cleanup function from `startSessionTTL()` - Call `cleanupSessionTTL()` in `end()` function - Cleanup listener AND both timers (ttl + grace) **Invariants Verified:** ✅ Listener removed via `ev.off()` ✅ Both timers cleared (ttlTimer + ttlGraceTimer) ✅ Called in end() after transaction cleanup ### 4. Race Condition - TTL Grace Timeout (socket.ts:831-834) **Issue:** Nested grace period timeout never cleared, fires after close. **Fix:** - Added `ttlGraceTimer` variable - Store timeout reference - Clear in close handler AND cleanup function - Prevents `end()` call on already-closed socket **Invariants Verified:** ✅ Grace timer cleared on disconnect ✅ No orphan timeouts ✅ Double-cleanup safe (idempotent) ### 5. Timer Accumulation in syncLoop (socket.ts:768-773) **Issue:** Recursive setTimeout could accumulate if completion happens after close. **Fix:** - Check `!closed && ws.isOpen` BEFORE rescheduling - Only schedule next sync if connection still open - Prevents unbounded timer growth **Invariants Verified:** ✅ Max 1 timer at a time ✅ No scheduling after close ✅ Cleanup always happens ### 6. TypeScript Compilation Error - Missing Event (Events.ts) **Issue:** 'session.ttl-expired' not in BaileysEventMap. **Fix:** - Added event to BaileysEventMap (Events.ts:162-167) - Full JSDoc documentation - Type-safe event payload **Invariants Verified:** ✅ TypeScript compilation succeeds ✅ Type-safe ev.emit() and ev.on() ### 7. Unbounded Queue - event-buffer.ts (Line 423-451) **Issue:** If import() fails, metricsQueue grows unbounded. **Fix:** - Added `metricsImportFailed` flag - Added `MAX_METRICS_QUEUE_SIZE = 1000` cap - Clear queue on import failure - Check both conditions before push **Invariants Verified:** ✅ Queue never exceeds 1000 items ✅ Queue cleared on import failure ✅ Silently drops metrics (acceptable for observability) ✅ Applied to ALL 7 metric call sites ### 8. Empty Callback - lid-mapping.ts (Line 984-986) **Issue:** Buffered callback empty, does nothing when module loads. **Fix:** - Removed metrics buffering entirely - Changed to no-op with comment - Actual metrics implementation pending **Invariants Verified:** ✅ No memory leak from queue growth ✅ No false promises (code matches reality) ✅ Clear TODO for future implementation ### 9. Renumbered Protections (socket.ts comments) **Fix:** - PreKey Auto-Sync: PROTECTION 1-6 (sequential) - Session TTL: PROTECTION 1-5 (sequential) - Documentation matches implementation ## 🛡️ VERIFICAÇÕES DE ROBUSTEZ ### Boundary Analysis Applied: ✅ Verified `end()` sets `closed = true` (socket.ts:927) ✅ Verified `connect()` does NOT exist in return type ✅ Verified makeWASocket() pattern in Example.ts ✅ Verified ConnectionState type structure (State.ts:17-49) ✅ Verified import() failure path in event-buffer.ts ### Invariant Verification: ✅ Socket lifecycle: create → use → end → recreate (not reconnect) ✅ Event listeners: added → used → removed in cleanup ✅ Timers: created → referenced → cleared on cleanup ✅ Queue bounds: capped at 1000, cleared on failure ✅ Cleanup idempotence: safe to call multiple times ### Data Flow Tracking: ✅ end() → cleanupPreKeyAutoSync() → ev.off() → listener removed ✅ end() → cleanupSessionTTL() → ev.off() + clearTimeout() → cleanup ✅ import() fail → metricsImportFailed = true → queue stops growing ✅ session error → emit close → consumer creates new socket ### Edge Mitigation: ✅ TTL expires during message send: 5s grace period >> message time ✅ Connection closes during sync: checked before reschedule ✅ Import fails: queue capped and cleared ✅ Multiple end() calls: guards prevent double cleanup ### Semantic Distrust: ✅ Did NOT assume connect() exists (verified absence) ✅ Did NOT trust empty callback would work (removed) ✅ Did NOT assume cleanup happens automatically (explicit) ✅ Did NOT trust queue would self-limit (added cap) ## FILES MODIFIED - src/Socket/socket.ts (auto-reconnect fix, listener cleanup, timer fixes) - src/Types/Events.ts (session.ttl-expired event) - src/Types/State.ts (isSessionError flag) - src/Utils/event-buffer.ts (unbounded queue fix) - src/Signal/lid-mapping.ts (empty callback removal) ## ZERO BREAKING CHANGES ✅ No impact on message delivery ✅ No impact on connection stability ✅ No impact on interactive messages ✅ Type-safe (TypeScript compiles) ✅ Consumer pattern unchanged https://claude.ai/code/session_33db9e93-e4c3-4859-9ff3-96d8864af1c4
This commit is contained in:
Claude
+73
-57
@@ -505,14 +505,11 @@ export const makeSocket = (config: SocketConfig) => {
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let qrTimer: NodeJS.Timeout
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let closed = false
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// Auto-reconnect state for session errors
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const MAX_RECONNECT_ATTEMPTS = 5
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let reconnectAttempts = 0
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// Session TTL and cleanup
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const SESSION_TTL = 7 * 24 * 60 * 60 * 1000 // 7 days
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let sessionStartTime: number | undefined
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let ttlTimer: NodeJS.Timeout | undefined
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let ttlGraceTimer: NodeJS.Timeout | undefined
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/** log & process any unexpected errors */
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const onUnexpectedError = (err: Error | Boom, msg: string) => {
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@@ -739,6 +736,7 @@ export const makeSocket = (config: SocketConfig) => {
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/**
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* PreKey Auto-Sync: Proactive validation every 6 hours
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* Prevents "Identity key field not found" errors by ensuring keys are always valid
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* Returns cleanup function to remove event listener
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*/
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const startPreKeyAutoSync = () => {
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const SYNC_INTERVAL = 6 * 60 * 60 * 1000 // 6 hours
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@@ -769,18 +767,21 @@ export const makeSocket = (config: SocketConfig) => {
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isRunning = false
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}
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// PROTECTION 5: Reschedule AFTER completion (not from start)
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syncTimer = setTimeout(syncLoop, SYNC_INTERVAL)
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// PROTECTION 3: Prevent timer accumulation
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// Only reschedule if connection is still open
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if (!closed && ws.isOpen) {
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syncTimer = setTimeout(syncLoop, SYNC_INTERVAL)
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}
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}
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// PROTECTION 6: Initial delay (avoid duplicate at startup)
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// PROTECTION 4: Initial delay (avoid duplicate at startup)
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// CB:success already calls uploadPreKeysToServerIfRequired(), so wait 6h before first auto-sync
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ev.on('connection.update', ({ connection }) => {
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const connectionHandler = ({ connection }: { connection: any }) => {
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if (connection === 'open') {
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logger.info('🔑 Starting PreKey auto-sync timer (first sync in 6h)')
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syncTimer = setTimeout(syncLoop, SYNC_INTERVAL)
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} else if (connection === 'close') {
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// PROTECTION 7: Cleanup on disconnect
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// PROTECTION 5: Cleanup on disconnect
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if (syncTimer) {
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clearTimeout(syncTimer)
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syncTimer = undefined
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@@ -788,18 +789,30 @@ export const makeSocket = (config: SocketConfig) => {
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logger.info('🔑 PreKey auto-sync stopped')
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}
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}
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})
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}
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ev.on('connection.update', connectionHandler)
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// PROTECTION 6: Return cleanup function
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return () => {
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ev.off('connection.update', connectionHandler)
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if (syncTimer) {
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clearTimeout(syncTimer)
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syncTimer = undefined
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}
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}
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}
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// Initialize PreKey auto-sync
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startPreKeyAutoSync()
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// Initialize PreKey auto-sync and store cleanup function
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const cleanupPreKeyAutoSync = startPreKeyAutoSync()
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/**
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* Session TTL Management: Graceful cleanup after 7 days
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* Prevents memory leaks and allows credential rotation in long-running sessions
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* Returns cleanup function to remove event listener
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*/
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const startSessionTTL = () => {
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ev.on('connection.update', ({ connection }) => {
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const connectionHandler = ({ connection }: { connection: any }) => {
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if (connection === 'open') {
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sessionStartTime = Date.now()
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@@ -816,8 +829,8 @@ export const makeSocket = (config: SocketConfig) => {
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duration: duration
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})
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// PROTECTION 4: Graceful delay before cleanup
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setTimeout(() => {
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// PROTECTION 3: Graceful delay before cleanup (with proper cleanup)
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ttlGraceTimer = setTimeout(() => {
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logger.info('🕐 Proceeding with TTL cleanup after grace period')
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end(new Error('SESSION_TTL_EXPIRED'))
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}, 5000) // 5s grace period
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@@ -826,19 +839,38 @@ export const makeSocket = (config: SocketConfig) => {
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const ttlHours = SESSION_TTL / 1000 / 60 / 60
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logger.info(`🕐 Session TTL started (${ttlHours}h = 7 days)`)
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} else if (connection === 'close') {
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// PROTECTION 3: Cleanup timer on disconnect
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// PROTECTION 4: Cleanup ALL timers on disconnect
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if (ttlTimer) {
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clearTimeout(ttlTimer)
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ttlTimer = undefined
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sessionStartTime = undefined
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logger.info('🕐 Session TTL timer cleared')
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}
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if (ttlGraceTimer) {
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clearTimeout(ttlGraceTimer)
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ttlGraceTimer = undefined
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}
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sessionStartTime = undefined
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logger.info('🕐 Session TTL timers cleared')
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}
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})
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}
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ev.on('connection.update', connectionHandler)
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// PROTECTION 5: Return cleanup function
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return () => {
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ev.off('connection.update', connectionHandler)
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if (ttlTimer) {
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clearTimeout(ttlTimer)
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ttlTimer = undefined
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}
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if (ttlGraceTimer) {
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clearTimeout(ttlGraceTimer)
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ttlGraceTimer = undefined
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}
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}
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}
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// Initialize Session TTL
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startSessionTTL()
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// Initialize Session TTL and store cleanup function
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const cleanupSessionTTL = startSessionTTL()
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const onMessageReceived = async (data: Buffer) => {
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await noise.decodeFrame(data, frame => {
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@@ -948,6 +980,12 @@ export const makeSocket = (config: SocketConfig) => {
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// Clean up transaction capability (PreKeyManager + queues)
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keys.destroy?.()
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// Clean up PreKey auto-sync event listener
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cleanupPreKeyAutoSync()
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// Clean up Session TTL event listener
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cleanupSessionTTL()
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ws.removeAllListeners('close')
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ws.removeAllListeners('open')
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ws.removeAllListeners('message')
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@@ -1366,46 +1404,24 @@ export const makeSocket = (config: SocketConfig) => {
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// update credentials when required
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ev.on('creds.update', async update => {
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// CRITICAL: Handle session errors with auto-reconnect
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// CRITICAL: Handle session errors by emitting close event for consumer-level reconnect
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if (update.error) {
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logger.error({ error: update.error }, '🔴 Session error detected - initiating auto-reconnect')
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logger.error({ error: update.error }, '🔴 Session error detected')
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// PROTECTION 1: Max attempts guard
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if (reconnectAttempts >= MAX_RECONNECT_ATTEMPTS) {
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logger.error(`❌ Max reconnect attempts (${MAX_RECONNECT_ATTEMPTS}) reached, giving up`)
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ev.emit('connection.update', {
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connection: 'close',
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lastDisconnect: {
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error: update.error,
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date: new Date()
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}
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})
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return
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}
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reconnectAttempts++
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logger.info(`🔄 Reconnect attempt ${reconnectAttempts}/${MAX_RECONNECT_ATTEMPTS}`)
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// PROTECTION 4: Cleanup before reconnect
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await end(update.error)
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// PROTECTION 2: Exponential backoff
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const delay = Math.min(1000 * Math.pow(2, reconnectAttempts - 1), 30000)
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logger.info(`⏳ Waiting ${delay}ms before reconnect (exponential backoff)`)
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await new Promise(resolve => setTimeout(resolve, delay))
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// Attempt reconnect
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logger.info(`🔄 Reconnecting now (attempt ${reconnectAttempts})`)
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await connect()
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// PROTECTION 3: Reset counter on success
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ev.once('connection.update', ({ connection }) => {
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if (connection === 'open') {
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logger.info(`✅ Reconnect successful, resetting attempt counter`)
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reconnectAttempts = 0
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}
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// Session errors indicate keys are desynchronized - socket must be recreated
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// Emit close event so consumer can call makeWASocket() again
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ev.emit('connection.update', {
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connection: 'close',
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lastDisconnect: {
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error: update.error,
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date: new Date()
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},
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// Include session error flag for consumer to detect
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isSessionError: true
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})
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// Cleanup current socket
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await end(update.error)
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return
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}
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