fix(codex): fail closed on uncertain account deletion - #3536
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Included review availability: Your plan provides up to 10 included reviews per hour; 8 remain after this review. 📝 WalkthroughWalkthroughAccount deletion now snapshots raw configuration bytes and verifies the file after a failed save. It throws ChangesAccount deletion atomicity
Estimated code review effort: 3 (Moderate) | ~20 minutes Merge Risk: ⚪ Minimal · up to Account deletion now fails closed when persistence is uncertain, preserving in-memory state and avoiding overwriting changed or missing configuration files. The covered failure cases show no remaining merge-blocking risk. Sequence Diagram(s)sequenceDiagram
participant deleteCodexAccount
participant saveConfigPreservingClaudeCode
participant ConfigFile
participant assertPersistedConfigUnchanged
deleteCodexAccount->>saveConfigPreservingClaudeCode: save updated configuration
saveConfigPreservingClaudeCode->>ConfigFile: write or modify persisted bytes
saveConfigPreservingClaudeCode-->>deleteCodexAccount: throw save failure
deleteCodexAccount->>assertPersistedConfigUnchanged: compare raw snapshot bytes
assertPersistedConfigUnchanged->>ConfigFile: read persisted bytes
assertPersistedConfigUnchanged-->>deleteCodexAccount: throw CodexAccountDeleteRollbackError when changed
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Inline comments:
In `@src/codex/account-lifecycle.ts`:
- Around line 99-101: Update assertPersistedConfigUnchanged to compare raw file
bytes rather than UTF-8-decoded strings, using the persisted byte snapshot from
the save-failure flow and checking both length and byte contents. Ensure changed
valid or malformed UTF-8 sequences trigger CodexAccountDeleteRollbackError, and
add regression coverage for distinct byte sequences that decode to the same
string.
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src/codex/account-lifecycle.tstests/codex-integration/codex-account-delete-atomicity.test.ts
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The byte-comparison finding was valid and is fixed on 32a2eb2. The lifecycle now snapshots and compares raw Buffer contents, so distinct malformed/valid UTF-8 byte sequences cannot alias through replacement-character decoding. The regression proves two distinct byte sequences decode identically yet still produce the fixed rollback error without overwriting disk or cleaning credentials/runtime state. Focused tests are 8/8; typecheck, privacy, and diff checks pass. @coderabbitai review |
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Ingwannu
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Security and correctness review completed on exact head 32a2eb224947565e4a3d747a8faf21e010636e79.
The delete path now fails closed when durable persistence is uncertain: it never rewrites a post-failure or concurrently changed config, never performs credential or runtime cleanup after an unconfirmed commit, and compares the persisted snapshot as raw bytes so malformed and valid UTF-8 sequences cannot alias. Missing-file, concurrent-edit, pre-write, post-write, cleanup-failure, and byte-alias regressions cover the relevant boundaries.
Cross-platform CI run 33924726677 and React Doctor run 33925109478 are green. No unresolved review thread remains. Approved.
리뷰 · 우선순위 68 / 80설명 이 PR은 Codex 계정 삭제 경로에서 “디스크가 이미 바뀌었을 수도 있는데 예전 바이트로 다시 덮어쓰는” 롤백을 그만두고, 불확실하면 닫힌 실패(fail-closed)로 바꾸는 보안·일관성 수정이다. 작성자는 yansigit(SB Yoon)이고, 베이스는 현재 HEAD에서는 저장( 이 PR은 utf8 문자열 비교를 버린 이유도 테스트로 고정돼 있다. 잘못된 UTF-8 바이트(예: 0x80)와 올바른 U+FFFD 리터럴은 디코딩 결과가 같아질 수 있다. 문자열로 보면 “같다”고 착각하고 롤백을 건너뛰거나, 반대로 잘못된 판단을 할 수 있다. raw 바이트 비교는 그 별칭(aliasing)을 막는다. 테스트 파일 범위도 명확하다. management DELETE 라우트의 중복 저장/에러 계약, 비협력 외부 작성자와의 본격 조율은 비목표로 적어 두었다. types.ts/config.ts 분할 캠페인과도 거의 겹치지 않아서, 분할 때문에 닫으라고 할 PR이 아니다. 작성자 쪽 full suite·typecheck·privacy:scan 통과, 독립 보안 리뷰 PASS, CodeRabbit UTF-8 지적도 바이트 비교로 반영된 상태라, fail-closed 스토리 자체는 현재 라인 99-102 - 메인테이너의 판단이 필요한 지점
너의 추천 이 댓글은 grok-bot이 작성했습니다 |
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Note GitHub couldn't provide a complete incremental comparison for this pull request, so CodeRabbit is performing a full review instead. This review may take a little longer. |
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Rebased this branch onto upstream I am leaving the existing rollback message unchanged in this slice. The current management route does not yet distinguish missing, unreadable, concurrently changed, or post-write states, so changing only the shared text would imply a precision the API contract does not provide. The message remains fixed and actionable ( The complete local suite is temporarily held behind the unrelated quota-reset base repair in #3621, so I reset the readiness attestation instead of carrying forward the old exact-head green claim. Once #3621 lands, I will refresh this branch, rerun the full suite, and restore the readiness boxes. |
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Upstream #3622 has landed. I rebased again onto current |
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Implemented by #3687 and merged into |
3 participants
Summary
This changes internal failure handling only. It does not change the config schema, credential format, commands, API success shape, or dashboard, so no user-facing documentation update is needed.
Verification
bun test ./tests/codex-integration/codex-account-delete-atomicity.test.ts— 8 pass, 0 fail on74808a8bc.bun run typecheck— pass on74808a8bc.bun run privacy:scan— pass on74808a8bc.bun run test— complete repository suite passes on74808a8bcafter upstream fix(ci): reconcile quota routes and integration fixtures #3622.git diff --check— pass on74808a8bc.Checklist
Review readiness checklist
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All CI tests are green on my local testing.
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