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Fix/gateway silent revocation failures#70676

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davidangularme wants to merge 5 commits intoopenclaw:mainfrom
davidangularme:fix/gateway-silent-revocation-failures
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Fix/gateway silent revocation failures#70676
davidangularme wants to merge 5 commits intoopenclaw:mainfrom
davidangularme:fix/gateway-silent-revocation-failures

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@davidangularme
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Summary

Problem: Three bare catch {} blocks in the gateway WebSocket revocation paths (server-shared-auth-generation.ts:28,43 and server-request-context.ts:116) silently swallow socket.close() failures. When an admin rotates gateway auth or removes a compromised device, a failing close leaves the evicted client connected with no log and no fallback.
Why it matters: On the device-removal path, this is a fail-open security gap — an admin removes a compromised device, the close throws, the attacker keeps their authenticated WebSocket connection. The operator sees no indication that revocation was partial. Shared-auth rotation has per-message generation enforcement as a backstop, but device-token clients do not.
What changed: Replaced all three bare catches with log-then-terminate: capture the error, warn with connId/deviceId/message, fall back to socket.terminate() (force-close, skips the close handshake). Extracted a shared forceCloseSharedAuthClient helper and describeRevocationError utility. Threaded RevocationLogger through all call sites.
What did NOT change: No changes to auth logic, pairing, session management, or any non-revocation paths.

Change Type (select all)

Bug fix
Security hardening

Scope (select all touched areas)

Gateway / orchestration
Auth / tokens

Linked Issue/PR

Related #70515 (same bare-catch pattern found in config recovery)
This PR fixes a bug or regression

Root Cause (if applicable)

Root cause: Bare catch {} around socket.close() in three revocation loops — same anti-pattern as the config-restore bug fixed in #70515.
Missing detection / guardrail: No test injected a throwing socket.close() on the revocation path.
Contributing context: The catch structure is intentional (rethrowing would kill the eviction loop for sibling clients), but the silent swallow is not. Confirmed that shared-auth clients have per-message generation re-check (message-handler.ts:1444-1458), but device-token clients have no equivalent — making the device-removal path the real fail-open.

Regression Test Plan (if applicable)

Coverage level:

Unit test

Target test or file: src/gateway/server-shared-auth-generation.test.ts (new), src/gateway/server-request-context.test.ts (extended)
Scenario: Inject a throwing socket.close, assert (a) logger.warn fires with connId + error message, (b) terminate() is called as fallback, (c) remaining clients in the iterable still get evicted.
Why smallest reliable guardrail: Unit test with injected socket failure covers the exact three branches.

User-visible / Behavior Changes

Operators now see a warning log when a revocation close fails, instead of silence.
Failed closes fall back to socket.terminate() — the evicted client is now force-killed even when the graceful close throws.

Diagram (if applicable)
textBefore:
[socket.close() throws] -> [catch {}] -> [attacker keeps connection] -> [no log]

After:
[socket.close() throws] -> [warn log with connId + error] -> [socket.terminate()] -> [connection killed]
Security Impact (required)

New permissions/capabilities? No
Secrets/tokens handling changed? No
New/changed network calls? No
Command/tool execution surface changed? No
Data access scope changed? No

Repro + Verification
Environment

OS: Linux (Ubuntu 24)
Runtime/container: Node 24

Steps

Connect a device via WebSocket with a valid device token
Remove the device via admin action (triggering disconnectClientsForDevice)
Simulate socket.close() throwing (e.g., socket already in CLOSING state)

Expected

Warning log with deviceId, connId, and error message
socket.terminate() called as fallback
Client connection forcibly closed

Actual (before fix)

No log
No terminate fallback
Client connection may survive revocation

Evidence

Failing test/log before + passing after

Human Verification (required)

Verified scenarios: Unit tests with injected throwing socket.close for all three revocation paths (device removal, disconnect-all shared auth, disconnect-stale shared auth)
Edge cases checked: terminate() also throwing (loop continues), non-shared-auth clients skipped, generation-matching clients skipped
What I did not verify: Full integration test with real WebSocket in half-closed state

Compatibility / Migration

Backward compatible? Yes
Config/env changes? No
Migration needed? No

Risks and Mitigations

Risk: RevocationLogger is optional — call sites that don't pass a logger get the old silent behavior

Mitigation: All existing call sites now thread their logger through; new call sites without a logger still get terminate() fallback, just no log

@davidangularme davidangularme requested a review from a team as a code owner April 23, 2026 16:16
@openclaw-barnacle openclaw-barnacle Bot added gateway Gateway runtime size: M labels Apr 23, 2026
@greptile-apps
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greptile-apps Bot commented Apr 23, 2026

Greptile Summary

This PR replaces three bare catch {} blocks in the gateway WebSocket revocation paths with structured log-then-terminate error handling, closing a fail-open gap where a compromised device's connection could survive revocation silently. The shared-auth paths gain a forceCloseSharedAuthClient helper and a RevocationLogger abstraction; all existing call sites are threaded with their respective loggers. Tests for both the shared-auth and device-removal paths are added with good coverage of the throwing-close and throwing-terminate edge cases.

  • In server-aux-handlers.ts (lines 65–69), params.log.warn is extracted as an unbound method reference and re-wrapped in { warn }, inconsistent with every other call site (logger: params.logReload, logger: log). If the logger is a class instance, this could cause warn to throw, which would propagate out of the catch block in forceCloseSharedAuthClient and abort the eviction loop — the same failure mode the PR is otherwise fixing. An arrow-function wrapper (warn: (m) => params.log.warn!(m)) avoids the binding issue.

Confidence Score: 4/5

Safe to merge after addressing the unbound method extraction in server-aux-handlers.ts

The core security fix and the terminate fallback logic are correct and well-tested. One call site in server-aux-handlers.ts uses an unbound method reference inconsistent with the rest of the PR, which could break the eviction loop if the logger is class-based — worth a one-line fix before merge.

src/gateway/server-aux-handlers.ts lines 65–69: unbound warn extraction

Prompt To Fix All With AI
This is a comment left during a code review.
Path: src/gateway/server-aux-handlers.ts
Line: 65-69

Comment:
**Unbound method extraction may break logger**

`params.log.warn` is extracted as a bare reference and then re-wrapped in a new object literal `{ warn }`. If the underlying logger is a class instance whose `warn` method references `this`, calling it via the re-wrapped object will either throw or silently misbehave — and because `forceCloseSharedAuthClient` calls `logger?.warn(...)` inside a catch block (no guard around the log call itself), a thrown exception there will propagate up and abort the eviction loop for remaining clients.

All other call sites pass the logger object directly (e.g., `logger: params.logReload` in `server-reload-handlers.ts`, `logger: log` in `server.impl.ts`). Here the pattern is inconsistent and less safe. Using an arrow-function wrapper (`warn: (m: string) => params.log.warn!(m)`) binds the call back to `params.log` without extracting the unbound reference.

```suggestion
        disconnectStaleSharedGatewayAuthClients({
          clients: params.clients,
          expectedGeneration: nextSharedGatewaySessionGeneration,
          logger: params.log.warn ? { warn: (m: string) => params.log.warn!(m) } : undefined,
        });
```

How can I resolve this? If you propose a fix, please make it concise.

Reviews (1): Last reviewed commit: "test(gateway): cover silent revocation c..." | Re-trigger Greptile

Comment thread src/gateway/server-aux-handlers.ts Outdated
Comment on lines +65 to +69
const warn = params.log.warn;
disconnectStaleSharedGatewayAuthClients({
clients: params.clients,
expectedGeneration: nextSharedGatewaySessionGeneration,
logger: warn ? { warn } : undefined,
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P2 Unbound method extraction may break logger

params.log.warn is extracted as a bare reference and then re-wrapped in a new object literal { warn }. If the underlying logger is a class instance whose warn method references this, calling it via the re-wrapped object will either throw or silently misbehave — and because forceCloseSharedAuthClient calls logger?.warn(...) inside a catch block (no guard around the log call itself), a thrown exception there will propagate up and abort the eviction loop for remaining clients.

All other call sites pass the logger object directly (e.g., logger: params.logReload in server-reload-handlers.ts, logger: log in server.impl.ts). Here the pattern is inconsistent and less safe. Using an arrow-function wrapper (warn: (m: string) => params.log.warn!(m)) binds the call back to params.log without extracting the unbound reference.

Suggested change
const warn = params.log.warn;
disconnectStaleSharedGatewayAuthClients({
clients: params.clients,
expectedGeneration: nextSharedGatewaySessionGeneration,
logger: warn ? { warn } : undefined,
disconnectStaleSharedGatewayAuthClients({
clients: params.clients,
expectedGeneration: nextSharedGatewaySessionGeneration,
logger: params.log.warn ? { warn: (m: string) => params.log.warn!(m) } : undefined,
});
Prompt To Fix With AI
This is a comment left during a code review.
Path: src/gateway/server-aux-handlers.ts
Line: 65-69

Comment:
**Unbound method extraction may break logger**

`params.log.warn` is extracted as a bare reference and then re-wrapped in a new object literal `{ warn }`. If the underlying logger is a class instance whose `warn` method references `this`, calling it via the re-wrapped object will either throw or silently misbehave — and because `forceCloseSharedAuthClient` calls `logger?.warn(...)` inside a catch block (no guard around the log call itself), a thrown exception there will propagate up and abort the eviction loop for remaining clients.

All other call sites pass the logger object directly (e.g., `logger: params.logReload` in `server-reload-handlers.ts`, `logger: log` in `server.impl.ts`). Here the pattern is inconsistent and less safe. Using an arrow-function wrapper (`warn: (m: string) => params.log.warn!(m)`) binds the call back to `params.log` without extracting the unbound reference.

```suggestion
        disconnectStaleSharedGatewayAuthClients({
          clients: params.clients,
          expectedGeneration: nextSharedGatewaySessionGeneration,
          logger: params.log.warn ? { warn: (m: string) => params.log.warn!(m) } : undefined,
        });
```

How can I resolve this? If you propose a fix, please make it concise.

davidangularme added a commit to davidangularme/openclaw that referenced this pull request Apr 23, 2026
Greptile review feedback on openclaw#70676: the previous 'const warn = params.log.warn; logger: { warn }' shape detaches the method from its owning logger, so any implementation that relies on 'this' (or that gets rebound later on params.log) would mis-fire. Replace with an arrow-function wrapper that invokes params.log.warn through its owner each call.
@davidangularme
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Addressed in [commit hash] — switched to arrow-function wrapper to preserve binding

@davidangularme
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Addressed in ab83788 — switched to arrow-function wrapper to preserve binding

@clawsweeper
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clawsweeper Bot commented Apr 29, 2026

Codex review: found issues before merge.

Summary
The PR updates gateway WebSocket revocation helpers to warn on socket.close failures, fall back to terminate, thread revocation loggers through reload paths, add unit tests, and mark one secrets-reloader system event as trusted.

Reproducibility: yes. Current main exposes the issue directly in the three bare catch blocks, and the PR's unit-test approach reproduces it by injecting throwing socket.close calls into the shared-auth and device-removal revocation helpers.

Next step before merge
The remaining blocker includes a security-sensitive trust-semantics conflict with current main, so a maintainer should decide the rebase resolution before any automated repair.

Security
Needs attention: The revocation fallback itself looks security-positive, but the PR's stale trusted: true secrets-event hunk would weaken current main's untrusted event handling.

Review findings

  • [P2] Preserve the untrusted secrets event flag — src/gateway/server.impl.ts:490
  • [P3] Add the required changelog entry — src/gateway/server-request-context.ts:119
Review details

Best possible solution:

Rebase the PR, keep the focused revocation log-and-terminate implementation, preserve current main's untrusted secrets-event handling, add an Unreleased changelog fix entry, then run the targeted gateway tests and changed gate before merge.

Do we have a high-confidence way to reproduce the issue?

Yes. Current main exposes the issue directly in the three bare catch blocks, and the PR's unit-test approach reproduces it by injecting throwing socket.close calls into the shared-auth and device-removal revocation helpers.

Is this the best way to solve the issue?

No for the current PR head. The revocation fix is the narrow maintainable approach, but the stale trusted: true hunk should be dropped or changed to preserve current main's trusted: false, and the changelog entry still needs to be added.

Full review comments:

  • [P2] Preserve the untrusted secrets event flag — src/gateway/server.impl.ts:490
    Current main explicitly marks secrets-reloader system events as trusted: false, and that flag controls System (untrusted) formatting plus sender-owner downgrade. This PR adds trusted: true to the same event call, so after rebasing it would undo that hardening for error text derived from secrets activation failures. Drop this hunk or keep the current trusted: false behavior.
    Confidence: 0.86
  • [P3] Add the required changelog entry — src/gateway/server-request-context.ts:119
    This is a user-visible gateway auth fix: operators get warning logs and revoked clients are force-terminated instead of silently surviving a failed close. Repo policy requires a CHANGELOG.md entry under the active Unreleased fixes section, but this PR does not touch the changelog.
    Confidence: 0.88

Overall correctness: patch is incorrect
Overall confidence: 0.9

Security concerns:

  • [medium] Secrets-reloader events become trusted again — src/gateway/server.impl.ts:490
    Current main marks these system events trusted: false so downstream prompt formatting and heartbeat routing treat their text as untrusted. The PR adds trusted: true on the same call, which would remove that downgrade after rebase or conflict resolution.
    Confidence: 0.86

Acceptance criteria:

  • pnpm test src/gateway/server-shared-auth-generation.test.ts src/gateway/server-request-context.test.ts
  • pnpm check:changed

What I checked:

Likely related people:

  • gumadeiras: Commit history links refactor(gateway): split startup and runtime seams to the shared-auth generation and request-context files this PR changes. (role: introduced current gateway helper split; confidence: high; commits: 8de63ca26825; files: src/gateway/server-shared-auth-generation.ts, src/gateway/server-request-context.ts, src/gateway/server.impl.ts)
  • jacobtomlinson: Commit history links Gateway: disconnect revoked device sessions to the paired-device removal behavior that calls disconnectClientsForDevice. (role: introduced device-session disconnect behavior; confidence: high; commits: 7a801cc451e9; files: src/gateway/server-methods/devices.ts, src/gateway/server-methods/devices.test.ts)
  • steipete: Current main's trusted: false secrets-reloader event handling blames to a recent Peter Steinberger commit that also touched src/infra/system-events.ts. (role: recent maintainer of system-event trust handling; confidence: medium; commits: 5b063c2d8382; files: src/gateway/server.impl.ts, src/infra/system-events.ts, CHANGELOG.md)

Remaining risk / open question:

  • The PR is stale against current main's secrets-event trust semantics and needs a rebase or conflict resolution that preserves trusted: false.
  • No validation commands were run because this review was intentionally read-only.

Codex review notes: model gpt-5.5, reasoning high; reviewed against 9bedcff904dd.

…erminate

The three best-effort disconnect loops that force-close stale / revoked WS
clients wrapped socket.close() in a bare catch {}. If close() threw on a
half-closed or malformed socket, the failure was swallowed and the client
kept its authenticated connection. On the device-removal path
(disconnectClientsForDevice) that was a real fail-open: an operator
removing a compromised device would see the call return success while the
attacker's live socket kept processing RPCs, because the per-message
generation check only covers shared-auth clients (message-handler.ts
$L1444-L1458), not device-token clients. The shared-auth-rotation paths
were fail-open only in the delay sense — the per-message check eventually
re-catches them — but silent close failures still hid operator-visible
errors during auth rotation.

Replace the three catches with: log via the caller's logger, then escalate
to socket.terminate() (wrapped in its own swallow so one stubborn socket
can't block the eviction loop). Thread loggers through the five call sites
— server-request-context (logGateway), server-aux-handlers (log),
server-reload-handlers (logReload, four sites), and server.impl
(enforceSharedGatewaySessionGenerationForConfigWrite). Widen the socket
client types with optional terminate() and connId for log context; both
additions are backwards-compatible.
New tests for server-shared-auth-generation and server-request-context
exercise the three log-then-terminate paths added in the parent commit:
inject a throwing socket.close, assert the logger fires with deviceId/
connId/error context, assert socket.terminate() is called as fallback,
and assert remaining clients in the iterable are still evicted.

Also covers: already-current generation is skipped (no spurious close),
terminate() failures are swallowed so the loop keeps going, and absence
of a logger stays silent on the happy path. Refactors the existing
createGatewayRequestContext test boilerplate into a makeContextParams
helper to keep the new device-removal test focused.
@davidangularme davidangularme force-pushed the fix/gateway-silent-revocation-failures branch from ab83788 to 329f425 Compare April 30, 2026 03:49
`GatewayRequestContextParams.clients` is `Set<GatewayRequestContextClient>` and `disconnectClientsForDevice` is optional on the shared context type; cast the populated `clients` set and assert the helper before invoking it so `tsgo:core:test` passes.
Set is invariant; direct cast from the populated literal to Set of GatewayRequestContextClient is rejected. Route the cast through unknown so the test fixture compiles under tsgo:core:test.
The secrets-reloader state event interpolates only an enum code and an internal message string, which matches the GHSA-gfmx-pph7-g46x triage note for low-risk callers. Add the explicit trusted: true to self-document intent and clear the opengrep finding; runtime behavior is unchanged because trusted defaults to true.
@davidangularme
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Hi @steipete, @gumadeiras,

Regarding the CHANGELOG.md requirement flagged by Clawsweeper: I've completed all technical fixes and unit tests, but I'd prefer if the maintainers could handle the changelog entry during the merge to avoid any potential file conflicts.

Everything else is ready and verified.

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