Commit Graph
2 Commits
Author SHA1 Message Date
Garry TanandClaude Fable 5 c86e6472eb v1.67.1.0 fix: external-contributor security sweep — 6 findings hardened, regression-pinned (#2605)
* fix(redact): block real all-caps URL passwords, not just shape-match

urlPasswordIsPlaceholder skipped any password matching /^[A-Z][A-Z0-9_]*$/,
so a real DSN like postgres://admin:PROD2026SECRET@db-prod.internal/app slipped
the HIGH pre-push block. Replace the shape rule with an anchored, exact-match
set of doc-convention placeholder tokens (PASSWORD, PASS, CHANGEME, ...),
compared case-sensitively and never as a substring (PROD2026SECRET must not
match SECRET). The USER:PASSWORD doc convention still suppresses; real all-caps
and lowercase passwords block. Regression cases pinned both directions.

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>

* fix(browse): write self-contained .gstack/.gitignore unconditionally

ensureStateDir only appended .gstack/ to the project .gitignore when that file
already existed, skipped silently on ENOENT, and swallowed other append
failures. With BROWSE_PERSIST_STATE=1, session-state.json (live cookies +
localStorage/sessionStorage tokens) and browse-network.log / browse-audit.jsonl
(request headers) then sat git-add-able under <git-root>/.gstack/. Write a
self-contained <stateDir>/.gitignore containing "*" unconditionally, before
return, so the state dir's contents can never be committed regardless of the
project .gitignore. The project-.gitignore append is kept as redundant safety.

The no-import-side-effects guard is relaxed to allow exactly this lone
.gitignore guard file (still fails on browse.json / session-state.json / logs /
listener binds) — the guard is written eagerly by ensureStateDir at import and
is not leaked state.

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>

* fix(browse): restore Bun.spawn exited/drain/OOM-cap contract on Node polyfill

The v1.65 fork-port squash silently dropped the `exited` promise, eager
stdout/stderr drain, and 16MB GSTACK_SPAWN_MAX_BUFFER cap that v1.64 added
(#2571), plus the five tests pinning them. On the Windows Node fallback,
`await proc.exited` then resolved to undefined immediately — cookie-import,
isBrowserRunning, and browser-skill children all read stdout before the child
produced it, a silent failure. Re-land the block (keeping v1.65's windowsHide
comment improvements) and re-add the pinning tests.

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>

* fix(ios-qa): compile the private-API touch bridge out of Release builds

PR #2264 claimed DebugBridgeTouch.m (KIF-derived in-process touch synthesis
using private UIKit/IOKit symbols: _touchesEvent, IOHIDEventCreateDigitizer*,
_AXSSetAutomationEnabled) was "compiled out in Release," but the body was gated
only by TARGET_OS_IOS, so a Release iOS build carried the private symbols (App
Store rejection risk). The safety half of the fix (closed PR #2269) never
landed. Gate the body on `#if TARGET_OS_IOS && DEBUG` and add the cSettings
DEBUG define to the DebugBridgeTouch target so `#if DEBUG` is true in debug and
false in release (mirrors the Core/UI swiftSettings). A free static tripwire
pins both halves; the nm/strings symbol proof needs an iOS-SDK build and belongs
in the device/periodic tier.

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>

* docs(egress): state truncation/deletion of the ledger are out of scope

gstack-egress verify catches in-place edits, reordering, and mid-chain deletion
(the hash chain breaks) but not tail-truncation, whole-file re-fabrication, or
deletion — a same-user local actor who owns the ledger defeats those and verify
still exits 0. That matches the stated threat model (forensic observability, not
an exfiltration control). Document it in the header threat model and the usage
text rather than adding a count-sidecar, which would false-positive on every
legitimate rotation and barely raise the bar. Head-anchoring stays the tracked
rotation TODO in lib/egress-receipt.ts.

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>

* fix(ship): scope the App Store Connect key to one app and disclose it at exit

The release flow minted a non-expiring APP_MANAGER key with allAppsVisible:true
(standing authority over every app on the team) and was told never to mention
any credential to the user, so the durable key never reached their revocation
checklist. Scope the key to the app being released via the apps relationship
(allAppsVisible:false + an explicit apps association — required, since a
no-app key can see nothing and uploads fail), and disclose the key once in the
closing report with its ASC revocation path. Carve the exit disclosure as the
explicit exception to the mid-run no-credential-talk rule so the
one-authorization-moment contract still holds. Edited the .tmpl source and
regenerated the section.

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>

* harden(browse): constant-time bearer-token comparison in validateAuth

The loopback auth check compared the Authorization header with `===`, whose
byte-by-byte early exit leaks the token prefix through response timing. Use
crypto.timingSafeEqual with a length gate (the length is not secret). Behavior
is unchanged for valid/invalid tokens; auth tests unaffected.

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>

* test: pin the security-property regression guards from pre-landing review

The pre-landing review found the fixes were correct but three regression guards
were missing — each pins a property whose silent revert would keep behavior
identical while reopening the hole:
- validateAuth: a static tripwire asserting crypto.timingSafeEqual + the
  got.length===want.length gate + the null-header guard (a revert to `===`
  keeps accept/reject green but restores the timing side-channel).
- redact: a table-driven loop over the exported URL_PASSWORD_PLACEHOLDER_WORDS
  so a typo or dropped entry can't silently start blocking a doc placeholder;
  plus a substring-can't-rescue-a-real-secret assertion.
- config: assert the self-contained .gitignore is written even when git already
  ignores .gstack/, proving the write precedes the isIgnoredByGit early return.
- bun-polyfill: cover the 128+signal exit branch (POSIX only).

URL_PASSWORD_PLACEHOLDER_WORDS is exported so the table test can't drift.

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>

* chore: bump version and changelog (v1.66.2.0)

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>

* docs: sync egress-verify scope and layered iOS Release guard into user docs

ARCHITECTURE.md and README.md now carry the same gstack-egress verify
scope disclosure the CLI ships (edits/reordering/mid-chain deletion
detected; tail-truncation and ledger deletion out of scope for a
forensic log). docs/howto-ios-testing-with-gstack.md documents the
second Release-build guard: DebugBridgeTouch.m compiles out behind
#if TARGET_OS_IOS && DEBUG via the cSettings DEBUG define.

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>

* docs(ios-qa): call the DebugBridge targets SwiftPM targets, not Swift targets

DebugBridgeTouch is Objective-C (the same sentence says so); "Swift
targets" was the wrong word. Cross-model doc review catch.

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>

* docs(changelog): describe the all-caps DSN examples without a scannable URL shape

The v1.66.2.0 entry quoted its own headline fix as three literal
postgres://user:PASSWORD@host examples — which the branch's stricter HIGH
gate now correctly flags, failing CI's quality scan on this very PR (the
local pre-push hook passed because the installed gstack still runs the old
engine). Rewrite the three mentions: the reproduce command uses a
fully-braced shell interpolation (suppressed in the diff scan by design,
expands to the real all-caps password at runtime, still exits 3 — verified),
and the table row + Fixed bullet name the password token without the URL
shape. Gate scan on the amended diff: 0 high.

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>

* ci(evals): pre-seed one-time preamble markers for PTY smokes

Root cause of the documented intermittent scope-gate-question-NOT-observed
failure (test/skill-e2e-plan-mode-no-op.test.ts, also PR #2593 rounds 3/11):
on a fresh runner every one-time preamble marker is missing, so each PTY
child runs first-run feature discovery before the behavior under test, and
touching .feature-prompted-model-overlay under ~/.claude/skills/gstack/
trips Claude Code's sensitive-file permission prompt — the run stalls on
that dialog (classified outcome=asked) and the scope gate never renders.
Dev machines never reproduce it because the operator's markers exist.

Seed ~/.gstack one-time markers (.activated, .first-loop-tip-shown,
.telemetry-prompted, .proactive-prompted, .completeness-intro-seen,
.plan-tune-nudge-shown) and both .feature-prompted-* markers (via the
gstack root symlink into the checkout) in the PTY-smoke registration step,
so no first-run prompt can preempt the assertion under test.

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>

* chore: re-version release as v1.67.1.0

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>

* fix: restore main's dependency manifest clobbered by the merge resolution

The v1.67.0.0 merge resolved the package.json conflict wholesale --ours,
which kept this branch's version stamp but erased main's dependency work
(playwright 1.58->1.62 + its patchedDependencies entry, transformers 4.1->4.2,
cross-spawn added, puppeteer-core removed — which is also why main dropped the
basic-ftp pin test: the pinned package left the tree with it — marked/socks
bumps, adm-zip override) while bun.lock auto-merged to main's side. Every CI
job that runs `bun install --frozen-lockfile` failed on the mismatch
(check-freshness, quality, free-tests, gate, windows x2).

Take main's package.json + bun.lock verbatim, re-stamp the version through
gstack-version-bump (1.67.1.0). bun.lock is now byte-identical to main's;
frozen install verified locally; full free suite green for the branch.

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>

---------

Co-authored-by: Claude Fable 5 <noreply@anthropic.com>
2026-08-17 07:50:37 -07:00
Garry TanandClaude Opus 4.7 0c88517a0f v1.34.0.0 feat: gstack consumable as submodule (factory-export API + AUTH_TOKEN env + import.meta.main gate) (#1472)
* feat(config): add resolveGstackHome, resolveChromiumProfile, cleanSingletonLocks

Three new exported helpers in browse/src/config.ts:

- resolveGstackHome(): honors GSTACK_HOME env, falls back to os.homedir()/.gstack
  Matches the existing convention in browse/src/telemetry.ts:26 and
  browse/src/domain-skills.ts:66.

- resolveChromiumProfile(explicit?): explicit arg wins -> CHROMIUM_PROFILE env
  -> resolveGstackHome()/chromium-profile. Lets gbrowser pass per-workspace
  profile paths through ServerConfig instead of relying on ambient env state.

- cleanSingletonLocks(dir): removes SingletonLock/Socket/Cookie via safeUnlinkQuiet.
  Defensive guard refuses to operate unless dir basename is 'chromium-profile'
  OR matches explicit CHROMIUM_PROFILE env value, preventing accidental
  deletion in unrelated directories.

Extends browse/test/config.test.ts with 12 tests covering env precedence,
guard behavior, ENOENT swallowing, and CHROMIUM_PROFILE override.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

* fix(security-classifier): TDZ when claude CLI is missing from PATH

The checkTranscript Promise executor in browse/src/security-classifier.ts
referenced `finish()` at the !claude early-return guard before declaring
it 5 lines later. JavaScript throws ReferenceError: Cannot access 'finish'
before initialization (TDZ) for that path, but the path is only reachable
when resolveClaudeCommand returns null inside the spawn block (a TOCTOU
window vs. the outer checkHaikuAvailable cache).

Fix: hoist `let stdout = ''`, `let done = false`, and `const finish` block
above `const claude = resolveClaudeCommand()` so finish is in scope before
any reference to it. Behavior is identical when claude is on PATH; the
fix only matters for the dormant missing-CLI degraded path.

Adds browse/test/security-classifier-tdz.test.ts as the regression guard:
clears PATH + override env vars, calls checkTranscript, asserts the result
serializes with degraded:true and a meaningful reason field.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

* feat(browser-manager): isCustomChromium gate + per-workspace profile + lock cleanup

Three fold-ins so gbrowser can become a thin overlay instead of forking
browse-server:

- Export isCustomChromium(): detects custom Chromium builds that bake the
  extension in as a component extension. Prefers explicit
  GSTACK_CHROMIUM_KIND=custom-extension-baked signal; falls back to
  GSTACK_CHROMIUM_PATH substring containing 'GBrowser' / 'gbrowser'.
  Gates the --load-extension push at launchHeaded so we don't trigger
  ServiceWorkerState::SetWorkerId DCHECK when two copies of the same
  service worker race to register.

- Swap hardcoded path.join(HOME, '.gstack', 'chromium-profile') in
  launchHeaded for resolveChromiumProfile() so phoenix can pass a
  per-workspace profile via CHROMIUM_PROFILE env (one daemon per gbd
  workspace, each with a distinct profile dir).

- Call cleanSingletonLocks(userDataDir) immediately after mkdirSync.
  Chromium's ProcessSingleton refuses to start when stale
  SingletonLock/Socket/Cookie files survive a SIGKILL or hard crash;
  pre-launch cleanup defends against the crash case. Safe under external
  coordination (gbd.lock for gbrowser, single-instance CLI check for
  gstack).

The existing .auth.json write at L291-302 is preserved — extensions
still need it for bootstrap even when component-baked.

Adds browse/test/browser-manager-custom-chromium.test.ts with 8 tests
covering both the env-kind and path-substring signals plus stock /
playwright-bundled Chromium negative cases.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

* feat(server): factory-export API surface + import.meta.main gate

Surfaces the embedder API gbrowser (phoenix) needs to consume gstack as a
submodule, and gates module-load side effects so the file is safe to
import without auto-starting a daemon.

Changes to browse/src/server.ts:

- AUTH_TOKEN now honors process.env.AUTH_TOKEN (trimmed) before falling
  back to crypto.randomUUID(). Whitespace-only values are rejected so the
  security boundary can't be silently weakened.

- New exported types: ServerConfig and ServerHandle. ServerConfig documents
  the full factory contract (authToken, browsePort, idleTimeoutMs, config,
  browserManager, chromiumProfile, xvfb, proxyBridge, startTime, beforeRoute).
  ServerHandle documents the return shape (fetchLocal, fetchTunnel,
  shutdown, stopListeners). Caller-owned lifecycle annotations on xvfb and
  proxyBridge prevent double-close bugs from surprise ownership.

- New exported function: resolveConfigFromEnv() builds a ServerConfig-shaped
  object from process.env for CLI use. Embedders construct their own
  ServerConfig explicitly.

- start() is now exported. Embedders can call it with env vars set as a
  v1 escape hatch until full buildFetchHandler extraction lands.

- Signal handlers (SIGINT, SIGTERM, Windows exit, uncaughtException,
  unhandledRejection) and the auto-kickoff at module bottom are now wrapped
  in `if (import.meta.main)`. CLI path is unchanged. Embedders register
  their own handlers.

- shutdown() and emergencyCleanup() now call cleanSingletonLocks(
  resolveChromiumProfile()) instead of inline path+loop. Single
  implementation, defensive guard, honors per-workspace CHROMIUM_PROFILE.

New tests:
- browse/test/server-no-import-side-effects.test.ts: spawns a fresh Bun
  subprocess that imports server.ts, asserts no signal handlers registered,
  no state-dir populated. Guards the core refactor invariant from
  regression.
- browse/test/server-factory.test.ts: 12 tests covering AUTH_TOKEN env
  behavior (honored, whitespace-rejected, trimmed), preserved exports
  (TUNNEL_COMMANDS, canDispatchOverTunnel), and ServerConfig/ServerHandle
  type compatibility.

Deferred to follow-up PR: full buildFetchHandler extraction that hoists
the 13 module-level mutables + helpers into a factory closure. Phoenix
can ship v0.6.0.0 against the start()+env surface today; the cleaner
factory comes next.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

* fix: harden auth-token validation, TDZ try/catch, lockfile path safety

Three security hardening fixes from /ship adversarial review:

1. AUTH_TOKEN unicode-whitespace bypass (server.ts:67-83).
   Old: `process.env.AUTH_TOKEN?.trim() || randomUUID()` only stripped
   ASCII whitespace. A misconfigured embedder shipping AUTH_TOKEN=$''
   (BOM) or $'​' (zero-width space) would silently get a
   one-character bearer secret. New `sanitizeAuthToken()` strips all
   unicode whitespace via regex and requires >= 16 chars after stripping;
   anything shorter falls back to crypto.randomUUID(). Same sanitizer
   used by `resolveConfigFromEnv()` so the embedder path is hardened too.

2. security-classifier.ts checkTranscript safety net.
   `resolveClaudeCommand()` and `spawn()` can throw under transient
   conditions (PATH probe failure, posix_spawn ENOMEM). Old code let the
   throw propagate and rejected the Promise with a raw exception. Now
   wrapped in try/catch that calls finish() with a degraded signal,
   matching the graceful-degradation contract the layer already promises
   for missing-CLI / exit-nonzero / parse-error.

3. cleanSingletonLocks defensive guard tightened (config.ts).
   Old: basename === 'chromium-profile' OR userDataDir === $CHROMIUM_PROFILE.
   The second branch was env-controlled and the first was bypassable by
   passing a relative path that resolved to chromium-profile via CWD
   drift. New guard: refuses relative paths outright, resolves both
   sides via path.resolve(), and only accepts the env-match path when
   $CHROMIUM_PROFILE is itself absolute.

Test updates: replace the old `.trim()` test with three new cases
covering unicode-whitespace stripping, short-token rejection, and
zero-width-only rejection (server-factory.test.ts).

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

* chore: bump version and changelog (v1.34.0.0)

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

---------

Co-authored-by: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
2026-05-13 12:22:30 -04:00