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fix(catalog): reject loopback HTTP routed through Bun proxies - #4615

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luvs01 wants to merge 3 commits into
lidge-jun:devfrom
luvs01:agent/catalog-proxy-route-20260914
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luvs01 wants to merge 3 commits into
lidge-jun:devfrom
luvs01:agent/catalog-proxy-route-20260914

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@luvs01

@luvs01 luvs01 commented Sep 14, 2026

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Summary

Reject loopback HTTP catalog fetches when Bun would route them through an HTTP proxy. Preserve the validated direct local route and fail closed before unsafe proxy routing; no live proxy or authentication configuration is changed by this PR.

Current author verification

  • Published head: f444e41d2aee795b435b3b0c5bed1152a6a7fdfe.
  • Full ordinary CI run 34959250757 completed successfully on this exact published head; the run head SHA was verified. This is hosted execution, not a claim that the full matrix was repeated locally.
  • The branch remains within the repository's current allowed dev-drift window. No tip-only rebase was performed.
  • All known applicable inline and review-body findings have been addressed. Explicit security review remains outstanding for the proxy-routing boundary. Passing automation does not establish that approval.

Review readiness checklist

The validation checkbox refers to the explicit scope above. Historical run IDs and prior local results are not represented as new-head full-suite execution.

  • All CI tests are green on my local testing.
  • I pushed my PR to the latest dev commit.
  • I resolved all correct Codex and CodeRabbit findings.
  • My PR is ready for review.

Summary by CodeRabbit

  • New Features

    • Loopback HTTP catalog requests are now refused when an HTTP proxy applies without a matching bypass, before credentials or requests are sent.
    • Supported proxy-bypass formats and environment-variable precedence are documented.
    • HTTPS catalog acquisition remains available through configured proxies.
  • Documentation

    • Updated CLI and project documentation in multiple languages with proxy-routing behavior, safeguards, and accepted bypass syntax.

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coderabbitai Bot commented Sep 14, 2026

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Review Change StackReview Change Stack

📝 Walkthrough

Walkthrough

The catalog fetch path now rejects loopback HTTP requests that would use Bun HTTP proxy routing. Tests cover proxy precedence, bypass formats, error redaction, HTTPS behavior, and IPv6 matching. CLI and architecture documentation describe the contract.

Changes

Catalog proxy routing

Layer / File(s) Summary
Proxy routing guard
src/codex/catalog/remote.ts
Adds Bun-compatible proxy and NO_PROXY evaluation. fetchRemoteCatalog raises insecure_http_refused before sending a request when proxy routing applies.
Proxy behavior integration coverage
tests/codex-integration/catalog-remote-pull.test.ts
Adds environment isolation and tests for refusal, bypasses, redaction, real Bun transport, HTTPS, and literal IPv6 host/port matching.
CLI proxy contract documentation
docs-site/src/content/docs/*/reference/cli/lifecycle.md
Documents proxy precedence, loopback HTTP refusal, accepted bypass formats, HTTPS behavior, and refusal-message redaction in the translated CLI references.
Architecture contract references
structure/catalog.md, structure/codex-home.md, structure/config.md, structure/gui-and-management-api.md, structure/ops/docs-and-release.md, structure/providers/openai-tiers.md, structure/runtime.md, structure/subagents.md
Defines the proxy-routing contract and links catalog acquisition to it across the structure documentation.

Priority: ➖ Normal

Estimated code review effort: 3 (Moderate) | ~25 minutes

Change: Bug fix

Sequence Diagram(s)

sequenceDiagram
  participant Caller
  participant fetchRemoteCatalog
  participant BunProxyRouting
  participant CatalogServer
  Caller->>fetchRemoteCatalog: Request remote catalog
  fetchRemoteCatalog->>BunProxyRouting: Check HTTP_PROXY and NO_PROXY
  BunProxyRouting-->>fetchRemoteCatalog: Return proxy decision
  alt Proxy applies to loopback HTTP
    fetchRemoteCatalog-->>Caller: Raise insecure_http_refused
  else Bypass applies or URL uses HTTPS
    fetchRemoteCatalog->>CatalogServer: Send authenticated catalog request
    CatalogServer-->>fetchRemoteCatalog: Return catalog response
    fetchRemoteCatalog-->>Caller: Return catalog result
  end
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Suggested reviewers: lidge-jun

Merge Risk: 🔵 Low · up to 39dfc

Worktrees with a local dotenv file can cause the proxy transport test to fail spuriously or validate a different routing configuration. Disable dotenv loading before merging.

🚥 Pre-merge checks | ✅ 4 | ❌ 1

❌ Failed checks (1 warning)

Check name Status Explanation Resolution
Docstring Coverage ⚠️ Warning Docstring coverage is 25.00% which is insufficient. The required threshold is 80.00%. Docstring coverage is scoped to functions touched by this diff. Analyzed 4 functions across 2 files. (16 skipped: … Write docstrings for the functions missing them to satisfy the coverage threshold.
✅ Passed checks (4 passed)
Check name Status Explanation
Linked Issues check ✅ Passed Check skipped because no linked issues were found for this pull request.
Out of Scope Changes check ✅ Passed Check skipped because no linked issues were found for this pull request.
Description Check ✅ Passed Check skipped - CodeRabbit’s high-level summary is enabled.
Title check ✅ Passed The title clearly and concisely describes the main change: rejecting loopback HTTP catalog requests routed through Bun proxies.
Full details: Docstring Coverage

Explanation

Docstring coverage is 25.00% which is insufficient. The required threshold is 80.00%. Docstring coverage is scoped to functions touched by this diff. Analyzed 4 functions across 2 files. (16 skipped: 16 unsupported.)

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Deterministic PR hygiene checks passed.

@github-actions github-actions Bot added the bug Something isn't working label Sep 14, 2026
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github-actions Bot commented Sep 14, 2026

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⏳ DRAFT

  • review readiness checklist open (3/4 boxes ticked).

What to do

  • Tick all four boxes in the PR description once you're done (currently 3/4).

Review readiness checklist

  • ✅ All CI tests are green on my local testing.
  • ✅ I pushed my PR to the latest dev commit.
  • ✅ I resolved all correct Codex and CodeRabbit findings.
  • ⬜ My PR is ready for review.

3/4 boxes ticked.

This PR stays in draft until every box above is ticked.

@luvs01

luvs01 commented Sep 14, 2026

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@codex review

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luvs01 commented Sep 14, 2026

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@coderabbitai review

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✅ Action performed

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@chatgpt-codex-connector

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Codex Review Summary

This comment shows the latest Codex review activity on this pull request.

Review Status Commit Review trigger
📝 Code Review Completed 2026-09-14T10:21:58.404486Z 39dfcf2 Manual request
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Codex Review: Didn't find any major issues. You're on a roll.

Reviewed commit: 39dfcf223a

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@lidge-jun

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리뷰 · 우선순위 58 / 80

설명

이 PR은 ocx catalog pull이 루프백 HTTP URL을 받을 때, Bun이 그 요청을 HTTP 프록시로 내보내면 인증 헤더를 붙이거나 fetch하기 전에 거절하게 만듭니다. 지금 devsrc/codex/catalog/remote.tsvalidateRemoteCatalogUrl에서 HTTPS(또는 루프백 HTTP)만 허용하고, fetchRemoteCatalog는 곧바로 Authorization을 붙인 뒤 fetch합니다. 문제는 Bun이 HTTP_PROXY/http_proxy가 있으면 루프백 HTTP도 프록시로 보낼 수 있다는 점입니다. 그러면 “로컬만 허용한 HTTP”가 실제로는 프록시로 나가고, 선택적 bearer까지 같이 실릴 수 있습니다.

고치는 방식은 WebSocket용 넓은 NO_PROXY 문법을 재쓰지 않고, Bun fetch가 쓰는 좁은 규칙만 로컬 함수 catalogRequestUsesBunHttpProxy로 복제하는 것입니다. 소문자 변수 우선, ASCII 공백 트림, 리터럴 호스트/host:port/[::1]/*만 우회로 인정하고, URL 형태·경로·*. 접두·trailing-dot 정규화는 하지 않습니다. ALL_PROXY나 HTTPS 전용 프록시는 HTTP 취득을 막지 않습니다. 거절 코드는 기존과 같은 insecure_http_refused이고, 메시지에 프록시 주소나 토큰을 넣지 않습니다. 테스트는 tests/codex-integration/catalog-remote-pull.test.ts에 라우팅·비공개·실 Bun fetch 회귀를 크게 보강했고, lifecycle 문서 8개 언어와 structure/catalog.md 등 소스 오너 문서에도 같은 계약을 적었습니다.

지금 dev HEAD(62f02223a)가 밀어 올리는 축은 #4546 cost-guard(전송 예산, 워크플로 천장, detour promote)입니다. 이 PR은 그 열차와 파일 겹침이 거의 없고, 카탈로그 원격 취득 보안 경계만 좁힙니다. 그래서 “지금 당장 merge-train에 끼워야 하는 핵심”은 아니지만, 루프백 HTTP + 기업 프록시 환경에서는 실제 토큰 유출 경로를 막는 값싼 가드입니다. compare상 dev 대비 ahead 1 / behind 5로 갈라져 있고 mergeStateStatus는 BLOCKED, 아직 draft입니다. behind 5는 #4546 쪽 최근 병합(#4609~#4616 부근)일 가능성이 커서, ready 전에 dev 재기반이 필요합니다. types.ts/config.ts 분할 캠페인과는 무관합니다.

경로 src/codex/catalog/remote.ts / catalogRequestUsesBunHttpProxy - Bun env_loader 주석 기준(1.4.2)과 맞춰 둔 점은 좋음. 다만 entry.startsWith(".") 후 slice는 Bun이 trailing-dot을 어떻게 다루는지와 미묘하게 다를 수 있으니, 테스트에 .localhost / localhost. 형태가 있으면 그 케이스가 의도인지 한 줄로 밝혀 두면 유지보수가 쉬움.

경로 RemoteCatalogError("insecure_http_refused", ...) - URL이 HTTPS가 아닐 때와 “프록시로 새는 루프백 HTTP”가 같은 에러 코드를 씀. 호출부/텔레메트리가 둘을 구분해야 하면 코드 분리가 나을 수 있음. 지금은 의도적 재사용으로 보임.

테스트 tests/codex-integration/catalog-remote-pull.test.ts - 실 Bun fetch 자식 프로세스 회귀가 핵심 증거. CI에서 Windows/macOS 격리 환경 변수(HTTP_PROXY 잔존)에 민감할 수 있으니, 실패 시 env 정리가 테스트 fixture에 고정돼 있는지 확인.

문서 lifecycle 8개 언어 + structure 다수 - 계약 문구가 길어 번역 드리프트 위험이 있음. 영어 docs-site/.../lifecycle.md를 정본으로 두고 번역은 후행이어도 기능 병합은 가능.

베이스가 053cfda11 근처에서 갈라짐 - 현재 dev tip 62f02223a와 behind 5. ready 전에 재기반 없으면 병합 시 충돌/재검증 비용이 남음.

메인테이너의 판단이 필요한 지점

  • 카탈로그 프록시 가드를 2.55.0 preview 검증 열차에 넣을지, 2.56.0 개발선(chore(release): open dev at 2.56.0 before releasing 2.55.0 #4618 이후)으로 미룰지.
  • insecure_http_refused 코드 재사용을 그대로 둘지, 프록시 거절용 코드를 새로 둘지.
  • draft readiness(로컬 CI·Codex/CodeRabbit)를 이 보안 가드에도 동일하게 강제할지.

너의 추천

의도와 테스트 방향은 좋습니다. draft를 유지한 채 dev(62f02223a)에 리베이스하고, 카탈로그 테스트와 hygiene만 다시 초록인지 확인한 다음 ready로 올리세요. #4546 릴리즈 크리티컬 경로가 아니라서 2.55.0 퍼블리시를 기다릴 필요는 없고, #4618로 dev2.56.0이 된 뒤에 넣어도 됩니다. 지금 상태 그대로 force-merge하지는 마세요(behind 5 + draft).

이 댓글은 grok-bot이 작성했습니다

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Actionable comments posted: 1

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only still-valid issues, skip the rest with a brief reason, keep changes
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Inline comments:
In `@tests/codex-integration/catalog-remote-pull.test.ts`:
- Line 188: Update the Bun.spawn invocation that runs the child script to
disable automatic .env-file loading, while preserving the restricted env object
and existing stdio configuration.

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📒 Files selected for processing (18)
  • docs-site/src/content/docs/fr/reference/cli/lifecycle.md
  • docs-site/src/content/docs/ja/reference/cli/lifecycle.md
  • docs-site/src/content/docs/ko/reference/cli/lifecycle.md
  • docs-site/src/content/docs/reference/cli/lifecycle.md
  • docs-site/src/content/docs/ru/reference/cli/lifecycle.md
  • docs-site/src/content/docs/tr/reference/cli/lifecycle.md
  • docs-site/src/content/docs/zh-cn/reference/cli/lifecycle.md
  • docs-site/src/content/docs/zh-tw/reference/cli/lifecycle.md
  • src/codex/catalog/remote.ts
  • structure/catalog.md
  • structure/codex-home.md
  • structure/config.md
  • structure/gui-and-management-api.md
  • structure/ops/docs-and-release.md
  • structure/providers/openai-tiers.md
  • structure/runtime.md
  • structure/subagents.md
  • tests/codex-integration/catalog-remote-pull.test.ts

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Comment thread tests/codex-integration/catalog-remote-pull.test.ts Outdated
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Co-authored-by: luvs01 <27862058+luvs01@users.noreply.github.com>
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