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fix(transport): settle SOCKS5 uploads on abort and early final responses - #5127
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The upload loop awaited the caller's body reader before looking at the socket at all. Aborting destroyed the socket, which does nothing to a read owned by the caller's own stream, so a stalled body kept the fetch pending - including when the peer had already answered and the response was sitting in the receive buffer. One reader now consumes the socket for the whole exchange and starts before the upload finishes. Each body read and drain wait races the caller's abort and that pending answer, so an abort rejects with its own reason, an early final response ends the upload without writing a terminating chunk into a finished conversation, and a socket failure during a stalled read surfaces as that failure. The request body is cancelled without being awaited, because a caller's cancel algorithm is free to never settle; releasing the reader is what frees the pending read.
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Included review availability: Your plan provides up to 10 included reviews per hour; 0 remain after this review. 📝 WalkthroughWalkthroughThe SOCKS5 fetch path now reads the final response during upload. It races body reads and socket drains with aborts and response completion. New tests cover early responses, aborts, socket failures, and normal chunked uploads. ChangesSOCKS5 upload lifecycle
Priority: ➖ Normal Estimated code review effort: 4 (Complex) | ~45 minutes Change: Bug fix · Severity of issue fixed: Medium Sequence Diagram(s)sequenceDiagram
participant Client
participant socks5Fetch
participant uploadRequestBody
participant RequestBody
participant SOCKS5Proxy
participant Target
Client->>socks5Fetch: POST with streaming body
socks5Fetch->>uploadRequestBody: Start upload and response observation
uploadRequestBody->>RequestBody: Read body chunk
uploadRequestBody->>SOCKS5Proxy: Write request data
SOCKS5Proxy->>Target: Forward request
Target-->>SOCKS5Proxy: Return response or close socket
SOCKS5Proxy-->>socks5Fetch: Provide response head or socket failure
uploadRequestBody-->>socks5Fetch: Settle upload and cancel pending body read
socks5Fetch-->>Client: Return response or rejection
🚥 Pre-merge checks | ✅ 4 | ❌ 1❌ Failed checks (1 warning)
✅ Passed checks (4 passed)
✨ Finishing Touches 💡 1📝 Generate docstrings 💡
🧪 Generate unit tests (beta)
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리뷰 · 우선순위 78 / 80SOCKS5로 큰 요청 바디를 올리다가 막히면, 예전에는 fetch가 영원히 안 끝났습니다. 업로드 루프가 “바디 청크를 다 보낼 때까지” 소켓 응답을 안 봤기 때문입니다. 상대가 413·401처럼 중간에 답을 보내도 그 답이 수신 버퍼에만 쌓인 채, 호출자 스트림의 이 PR은 types/config 대형 스플릿과 무관합니다. 다만 #5125·#5126도 경로 메인테이너의 판단이 필요한 지점
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Inline comments:
In `@src/lib/socks5-fetch.ts`:
- Line 560: Update the onAbort handler in the abort-promise flow to reject with
the original signal.reason whenever it is defined, including non-Error values,
and retain the fallback error only when no reason exists. Add a regression test
covering string or object abort reasons and verify the exact value is
propagated.
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scripts/test-layout/layout.jsonsrc/lib/socks5-fetch.tsstructure/transports/inventory.mdtests/fixtures/test-layout-expected.jsontests/lib/socks5-upload-lifecycle.test.ts
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One union covering both races let the compiler accept reading a chunk value off a drain result, which is the mistake the type exists to prevent. The body race and the drain race now have separate result types, and the shared answered case is its own type. The abort regression also drove its abort from the body stream having produced a chunk. A caller's stream can be pulled before the tunnel is established, so that signal did not prove the fetch was parked mid-upload. The fake upstream now reports the first body byte it actually receives, and the abort follows that.
추가 리뷰 · 우선순위 79 / 80이전 리뷰(78/80) 이후 tip에 한 유니온( abort 회귀 테스트도 바뀌었습니다. 예전에는 호출자 스트림이 청크를 냈다는 신호로 abort를 걸었는데, 터널이 열리기 전에도 스트림은 pull될 수 있어서 “업로드 중간에 parked”를 증명하지 못했습니다. 지금은 fake upstream이 실제로 받은 첫 바디 바이트를 보고 올린 뒤에 abort합니다. hang 구멍(#5110)에 더 가깝습니다. CodeRabbit이 짚은 스택 쪽: 이전 리뷰 이후 #5125는 이미 경로 메인테이너의 판단이 필요한 지점
너의 추천 이 댓글은 grok-bot이 작성했습니다 |
AbortSignal.reason is whatever the caller passed, and the socket reader already hands a string or an object back unchanged. The upload race wrapped anything that was not an Error, so the same abort surfaced differently depending on which race won it. It now passes the reason through, with a regression that aborts with a string and asserts identity. The abort regression also now waits on the upstream observing the request head and its first body byte before aborting. Waiting on the caller's stream having produced a chunk did not prove the fetch was parked mid-upload, because a stream can be pulled before the tunnel is established.
The helper preserved a non-Error reason, but that was not the contract the caller saw. Several waiters inside this transport can win the race that settles an abort, and they disagree about a reason they consider absent: the socket reader substitutes an Error for null, others coerce anything that is not an Error. The same abort(null) therefore surfaced as an Error or as null depending on scheduling, and the comment claiming otherwise was wrong. An aborted request now rejects with the exact signal reason, decided in one place. undefined is left alone so a hand-built signal without a reason still reaches the underlying cause. The regression covers a string, null and a plain object, each asserted by identity.
추가 리뷰 · 우선순위 80 / 80이전 추가 리뷰(79/80, tip 이전에는 테스트도 맞춰졌습니다. 스택: #5125는 이미 경로 메인테이너의 판단이 필요한 지점
너의 추천 이 댓글은 grok-bot이 작성했습니다 |
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Maintainer integration into dev, bound to reviewed head Five files reviewed independently. Upload read/drain races now preserve Error, string, object and null cancellation reasons; the regression aborts only after the fake upstream sees body bytes. Prior type-narrowing and oracle findings are resolved. Exact-head run https://github.com/lidge-jun/opencodex/actions/runs/35432240251 passed all applicable producers and aggregate ci. Hosted Linux and macOS logs explicitly show early response, stalled upload abort, string/null/object reason, vanished peer and ordinary POST cases passing. No unresolved review thread or maintainer objection remains. Local tests/typecheck/build/install were NOT RUN. Current dev at e668aa1 was inspected. A static merge-tree resolves cleanly and preserves the already landed null-body rule; the resulting dev delta is exactly the five scoped files. Intervening unrelated integrations were checked for overlap. Independent coordinator merge slots are serialized. Superseded dev push runs are not treated as passes or failures; the new cumulative dev run will be monitored and genuine failures block further affected integration. No runtime/CI policy was bypassed to excuse a failing test. Close #5110 only after actual dev landing. Keep other issue outcomes separate. |
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Summary
101still ends that loop. Backpressure, ordinary POST completion and the existing abort paths are unchanged.Scope map:
src/lib/socks5-fetch.tsfinalResponseHead,abortRejectionanduploadRequestBodyextracted; the request path starts the head read before the upload and awaits it after.tests/lib/socks5-upload-lifecycle.test.tsstructure/transports/inventory.mdVerification
ocxcommand, so no local result is claimed. Exact-head hosted CI on this PR is the executable evidence.SocketReaderattaches its socket listeners in its constructor, so starting the head read earlier adds no socket listener and buffers nothing differently; confirmed there is still exactly one consumer of that reader, since the interim-response loop moved intofinalResponseHeadintact; confirmed every promise that can lose a race carries a handler, so no rejection is reported as unhandled; confirmed the existing backpressure regression still settles with the same error, because the reader's failure and the drain wait's failure are the same socket error.tests/lib/socks5-upload-lifecycle.test.ts, all against loopback fake peers with no credentials: an early 413 resolves while the body is still stalled, cancels the request body, and sends no terminating chunk; a caller abort rejects with the identical reason object; a peer that disappears during a stalled read settles as an error; and an ordinary streamed POST still completes with its terminating chunk. Every assertion is bounded by a deadline race, so a regression fails rather than hanging the suite.git diff --checkis clean. New test file registered inscripts/test-layout/layout.jsonandtests/fixtures/test-layout-expected.json; no file-size cap was raised, andsrc/lib/socks5-fetch.tsis not ratchet-tracked.Checklist
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