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fix(transport): decode content-coded responses on the pinned direct route - #5126
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Included review availability: Your plan provides up to 10 included reviews per hour; 4 remain after this review. 📝 WalkthroughWalkthroughThe pinned HTTP transport now classifies and decodes gzip and deflate responses. It rejects unsupported or corrupt coding with named errors, enforces byte limits, updates lab and quota failure mappings, and adds focused transport regression coverage. ChangesRaw transport response semantics
Priority: ➖ Normal Estimated code review effort: 4 (Complex) | ~45 minutes Change: Bug fix · Severity of issue fixed: Medium Sequence Diagram(s)sequenceDiagram
participant Caller
participant pinnedHttpRequest
participant HTTPPeer
participant decodedBody
Caller->>pinnedHttpRequest: request response
pinnedHttpRequest->>HTTPPeer: send accept-encoding policy
HTTPPeer-->>pinnedHttpRequest: return coded response
pinnedHttpRequest->>decodedBody: classify and decode body
decodedBody-->>Caller: return decoded response bytes
decodedBody->>HTTPPeer: release connection on error or cancellation
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리뷰 · 우선순위 76 / 80provider outbound는 SOCKS 터널과 pinned direct 둘 중 하나를 고릅니다. 터널은 이미 gzip/deflate를 풀어 줬는데, pinned 쪽은 소켓에서 조립한 coded 바이트를 그대로 이 PR은 베이스가 경로 메인테이너의 판단이 필요한 지점
너의 추천 이 댓글은 grok-bot이 작성했습니다 |
…oute The SOCKS tunnel undoes gzip and deflate; the pinned direct helper returned the coded bytes unchanged. Provider outbound chooses between the two, so the same gzip JSON was readable on one route and a SyntaxError on the other depending on operator egress configuration. The pinned helper now asks for identity unless the caller chose an accept-encoding, decodes gzip and deflate, drops the coding and the coded length once the bytes no longer match them, and refuses any other coding under a named error instead of handing over bytes no caller can parse. Only the coding the response actually carries decides this, so a preference list naming an alternative this code cannot undo is not a refusal. maxBytes now binds the decoded body as well as the bytes that arrived, because a ceiling applied only to the coded side admits a body far larger than the caller agreed to hold. The classifier is shared with the tunnel, which keeps its own error type and message.
…onomy Review of the content-coding change found the decoded body rewriting every non-PinnedHttpError from the pipeline into content_decode_failed. A mid-body reset and a socket error reach a decoder as "the stream failed", so that told the caller the peer had sent unreadable bytes when the connection had actually died. The source stream's failure is now recorded as it passes and surfaced unchanged; only what the decompressor itself rejected is renamed. The two new error codes also had to be classified everywhere the union is read. Antigravity quota probing sent every code except the byte cap to "timeout", so an undecodable response was diagnosed as a timing failure; both new codes now join the byte cap under "response_unusable". The Lab pinned sender switched over the four codes that existed when it was written and let anything else fall through to a raw rethrow. Both consumers now use a total map, which makes a future code a compile error rather than a silent misdiagnosis. An unsupported coding deliberately maps to nothing in the Lab taxonomy: it is a deterministic contract mismatch, and borrowing a timeout or transient code would tell Lab to wait or retry for a failure that is neither. Adds regressions for a reset during a valid coded body, cancellation through the decoder, the socket-side byte ceiling alongside the decoded one, and observed connection release before teardown.
…onomy Leaving the unsupported-coding case out of the Lab map was not the same as leaving it unclassified. The executor turns an unrecognized error into harness_failure / execution_error, so a response the peer coded in a format this transport cannot undo was attributed to the runner rather than to the upstream. Both unreadable answers now carry a new unreadable_response transport code, which Lab classifies as a protocol failure: deterministic, upstream-owned, and neither a timeout, a budget, nor a harness fault. The map stays total, so a future pinned error code cannot inherit the old misattribution by default. The quota and Lab mappings are now asserted directly. Two test oracles were also weaker than their names. The byte-ceiling case sat above both ceilings, so deleting the socket-side counter could still pass through the decoded one; it now uses a payload whose coded form is larger than its decoded form, with both sizes asserted, so only the socket-side counter can refuse it. The cancellation case sent a complete small body, so ordinary end-of-stream could release the peer; it now promises more than it sends, stays open, and is cancelled after the pipeline has produced output.
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Hosted CI showed the success-path assertion failing: the case demanded the peer connection be destroyed after a complete decoded body, and it was not. The oracle was wrong, and so was the code it was pinning. A response that ended has nothing left to release, and destroying it takes a connection the agent is entitled to reuse. The identity path only closes, so the decode path now does the same. Teardown stays where a response actually ends early: a decode failure, an exceeded ceiling, and a caller that cancels. Those three now assert an observed close rather than only the error they raise, and the success case asserts the connection is left intact.
The success case asserted the connection was left intact, which pins a mechanism this transport does not own: Node documents a completed connection as destroyed or pooled depending on the agent's keepAlive setting, and the runtime's actual choice is not something a transport test should encode in either direction. What a completed decoded body owes is that it ends - the decoder flushes, the stream closes and the caller reads the whole value - so that is what the case now asserts. The cleanup this path does owe is still asserted where a response ends early, in the decode-failure, ceiling and cancellation cases.
추가 리뷰 · 우선순위 78 / 80첫 리뷰(76/80, tip 근처 이전 Lab 매핑은
호스티드 CI는 아직 pending(label / react-doctor / resolve-pr). mergeable_state는 blocked. types/config 스플릿과 무관. Closes #5111. 경로 메인테이너의 판단이 필요한 지점
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…ibutable The decode-failure and ceiling cases sent their whole declared length, so the response could complete before the failure surfaced and the connection could then be pooled rather than closed - the same agent behavior the success case above deliberately refuses to pin. Both fixtures now promise more than they send and stay open, so the close each case asserts is the one this path owes for a response that ended early. The inventory paragraph is narrowed to match: teardown belongs to responses that end early, while a completed one is left to the agent.
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Inline comments:
In `@tests/lab/lab-live-pinned-timeouts.test.ts`:
- Around line 137-141: Update the rejection assertions in the timeout test to
capture the error returned by send, assert it is a TransportError, and verify
its name and code. Pass that same captured error to classifyTransportError
instead of constructing a separate TransportError.
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scripts/test-layout/layout.jsonsrc/lab/live/transport.tssrc/lab/live/types.tssrc/lib/http-response-semantics.tssrc/lib/lab-live-pinned-sender.tssrc/lib/pinned-http.tssrc/lib/socks5-fetch.tssrc/providers/quota/antigravity.tsstructure/transports/inventory.mdtests/fixtures/test-layout-expected.jsontests/lab/lab-live-pinned-timeouts.test.tstests/lib/pinned-http-content-coding.test.tstests/providers/provider-account-quota.test.ts
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추가 리뷰 · 우선순위 79 / 80직전 추가 리뷰(78/80, tip 실패 케이스(깨진 gzip)와 소켓 쪽 바이트 천장 케이스는 선언한 길이를 전부 보낸 뒤 끝났습니다. 응답이 먼저 끝나면, 디코더가 거절하거나 천장이 걸려도 커넥션은 이 코드가 닫는 게 아니라 HTTP 에이전트가 풀에 넣거나 버릴 수 있습니다. 성공 케이스는 이미 그 풀링을 일부러 안 찍었습니다. 그런데 실패 쪽은 호스티드 CI는 linux/windows test 1/4–4/4, gates, hygiene가 통과했습니다. macos(keyring macos, macos 1/2, macos 2/2, npm-global macos)는 아직 pending입니다. types/config 스플릿과 무관합니다. Closes #5111. 경로 메인테이너의 판단이 필요한 지점
너의 추천 이 댓글은 grok-bot이 작성했습니다 |
추가 리뷰 · 우선순위 79 / 80직전 추가 리뷰는 tip corrupt gzip 케이스와 소켓 쪽 바이트 한도 케이스는, 바디를 선언한 길이만큼 다 보낸 뒤에 닫힘을 확인했습니다. 응답이 이미 끝나면 Node 에이전트가 커넥션을 풀에 넣거나 버릴 수 있습니다. 그때의 닫힘은 “일찍 끝난 응답을 이 경로가 닫았다”인지 “끝난 커넥션을 에이전트가 정리했다”인지 구분되지 않습니다. 성공 케이스는 바로 그 구분을 일부러 하지 않습니다. 지금은 두 케이스 모두 이 tip에서 리눅스 테스트 4샤드, gates, docker smoke, hygiene는 pass입니다. macOS 1/2와 2/2는 아직 돌고 있고, keyring macos는 대기 중입니다. mergeable은 맞지만 리뷰가 필요해서 merge 상태는 blocked입니다. 베이스는 경로 메인테이너의 판단이 필요한 지점
너의 추천 이 댓글은 grok-bot이 작성했습니다 |
The unreadable-response case asserted the rejection shape and then classified a separately constructed TransportError. That second assertion would pass even if the sender raised something else entirely, which is the opposite of what it is there to prove. Both cases now capture the rejected value, assert it is a TransportError carrying the expected code, and classify that same instance.
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Summary
gzipanddeflateresponse bodies. The SOCKS tunnel already did, andsrc/lib/provider-outbound.tschooses between the two, so the same gzip JSON was readable on one route and aSyntaxErrorfrom the caller's own parser on the other, decided by the operator's egress configuration rather than by anything the provider did.accept-encoding: identitywhen the caller did not choose one, which is the rule the tunnel already applies. That reduces unnecessary coding but is not the fix on its own: a peer is free to ignore it, which is exactly the case this PR handles.unsupported_content_encoding) before the stream takes the socket, and a corrupt coded body surfaces ascontent_decode_failedrather than as a bare stream error from a decompressor the caller never constructed.accept-encodingnamesbralongsidegzipstill gets its gzip response decoded; the preference list is not a refusal.maxBytesnow bounds the decoded body as well. Its existing meaning for bytes arriving on the socket is unchanged; the decoded side gains the same ceiling, because a limit applied only to the coded side admits a body far larger than the caller agreed to hold. Brotli and multiple-coding support remain separate policy decisions.This PR is stacked on #5125 and targets
codex/raw-transport-null-body. The dependency is real: the null-body branch must be evaluated before content coding, or a 205 that advertises a coding it never sent would be refused for bytes that do not exist. #5125 also introducessrc/lib/http-response-semantics.ts, which this PR extends with the shared coding classifier. Retarget todevonce the parent lands.Scope map:
src/lib/http-response-semantics.tsclassifyContentCoding, shared by both raw transports.src/lib/socks5-fetch.tscontentCodingFormatreads the shared classifier and keeps its own error type and message unchanged.src/lib/pinned-http.tstests/lib/pinned-http-content-coding.test.tsstructure/transports/inventory.mdmaxBytesaccounting.The classifier returns a classification rather than throwing, so each transport keeps its own named error: the tunnel still rejects with
Socks5FetchErrorcarrying the identical message, and its existing assertions are unchanged.Verification
ocxcommand, so no local result is claimed. Exact-head hosted CI on this PR is the executable evidence.pinnedHttpRequest's response handler to confirm the null-body branch still precedes classification; confirmed the non-2xx branch already answers with a null body, so an error page's coding is not this PR's concern; confirmed cancelling the decoded reader propagates throughpipeThroughto the socket stream's owncancel, which destroys the request, withreleasecovering the already-torn-down case; confirmed the byte ceiling on the socket side is untouched, so the encoded-byte behavior is preserved rather than replaced.tests/lib/pinned-http-content-coding.test.ts, all against loopback fake peers with no credentials: gzip decodes and drops the stale coding and length; deflate decodes; the pinned and SOCKS routes produce the same logical JSON for the same payload;bris refused by name; a corrupt gzip body fails ascontent_decode_failed; a 64 KiB body compressed under a 1 KiBmaxBytesfails asoutput_byte_limiteven though the coded bytes fit; the default request asks for identity, and an explicitgzip, brpreference is preserved and its gzip response still decodes.git diff --checkis clean. New test file registered inscripts/test-layout/layout.jsonandtests/fixtures/test-layout-expected.json; no file-size cap was raised, and none of the touched source files are ratchet-tracked.Checklist
Review findings disposition (head
d7b5c83a01, basecodex/raw-transport-null-body@6557add72b)Interdiff from
7c422f2a75: one commit,d7b5c83a01, touchingsrc/lib/pinned-http.ts,src/providers/quota/antigravity.ts,src/lib/lab-live-pinned-sender.tsandtests/lib/pinned-http-content-coding.test.ts.PinnedHttpErrorfrompipeThroughintocontent_decode_failed, so a mid-body reset was reported as unreadable bytes from the peer. An attribution stage now sits between the socket stream and the decompressor and records the failure the source raised; that failure is surfaced unchanged, and only what the decompressor itself rejected is namedcontent_decode_failed. The decoded-byte ceiling still raisesoutput_byte_limit, and the socket-side ceiling is unchanged.src/providers/quota/antigravity.ts. It sent every code exceptoutput_byte_limittotimeout, so both new codes were diagnosed as timing failures. It now uses a totalsatisfies Record<PinnedHttpErrorCode, QuotaFailureCode>map; the three timeouts staytimeoutand the three unusable-response codes areresponse_unusable.src/lib/lab-live-pinned-sender.ts. Its switch covered only the original four codes and let anything else fall through to a raw rethrow. It now uses a total map.content_decode_failedmaps toprovider_transient, since a retry can legitimately decode.unsupported_content_encodingdeliberately maps to nothing and is rethrown unchanged: it is a deterministic contract mismatch, the Lab taxonomy has no unreadable-response code, and borrowing a timeout or transient code would tell Lab to wait or retry for a failure that is neither. The map is compile-enforced, so a future code cannot escape silently. No Lab type was changed and the core/Lab boundary is untouched — this file already sits outsidesrc/lab/.content_decode_failed; cancelling a coded body propagates through the decoder and releases the peer; an incompressible payload under a ceiling below its coded length still raisesoutput_byte_limitfrom the socket-side counter; and a decoded response's connection is observed destroyed before teardown, under a bounded deadline rather than a fixed sleep.Summary by CodeRabbit
New Features
Bug Fixes
Documentation
Tests