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fix(adapters): bound GLM checkpoint envelope detection work - #6193
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An untrusted transcript can hold tens of thousands of unmatched <conversation> openings. The greedy /<conversation>[\s\S]*<\/conversation>/i scan re-walks the tail for every opening position, giving quadratic regex backtracking and event-loop blocking inside request handling. Replace it with two fixed-tag scans: an anchored case-insensitive /<conversation>/i exec, then a /<\/conversation>/gi search resumed from after that opening. Both run in place over the transcript — no lowercased copy, whose second body-sized string would roughly double peak memory for requests that can reach hundreds of MiB. Regression tests pin the behavior with deterministic probes instead of a wall-clock bound: every transcript scan must be one of the two fixed tag patterns (a greedy [\s\S]* pass fails that assertion even though it only scans once), and no transcript-sized normalized copy may be allocated.
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Navigate logical layers of code changes, visualize relationships, and explore their blast radius. 📝 WalkthroughWalkthroughThe GLM summary budget check now detects conversation envelopes with case-insensitive tags. Tests check uppercase tags, unmatched openings, transcript scans, and case-conversion copies. ChangesConversation envelope detection
Priority: ⬇️ Low Estimated code review effort: 2 (Simple) | ~10 minutes Change: Bug fix Merge Risk: 🔵 Low · up to GLM checkpoint requests can now receive different summary-budget handling without that behavior being documented. This is a bounded documentation gap, not a demonstrated runtime failure. 🚥 Pre-merge checks | ✅ 4 | ❌ 1❌ Failed checks (1 warning)
✅ Passed checks (4 passed)
✨ Finishing Touches🧪 Generate unit tests (beta)
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Review comments at @src/adapters/openai-chat/summary-budget.ts:
- Line 77: Update the OpenAI chat passthrough documentation for
protectGlmSummaryBudget to state that GLM checkpoint envelopes accept
case-insensitive conversation tags, and that matching envelopes can raise the
summary token cap and set reasoning_effort to "low".
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src/adapters/openai-chat/summary-budget.tstests/adapters/openai/openai-chat-glm-summary.test.ts
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리뷰 · 우선순위 52 / 80GLM이 체크포인트 요약인지 판단할 때, 사용자 기록에 이 PR은 그 검사를 두 번으로 나눕니다. 여는 태그를 앞에서부터 한 번 찾고, 그 위치 다음에서 닫는 태그를 한 번 찾습니다. 찾는 글자는 태그 두 개로 고정되어 있습니다. 읽는 양은 기록 길이에 맞춰 늘어납니다. 검색은 원문 위에서 바로 합니다. 소문자로 바꾼 복사본은 만들지 않아서, 수백 MB 요청에 같은 크기 문자열이 하나 더 붙지 않습니다. 참인지 거짓인지는 예전과 같습니다. 여는 태그 뒤에 닫는 태그가 있으면 참입니다. 대문자 라인 - 라인 - 메인테이너의 판단이 필요한 지점 CodeRabbit은 대소문자 태그를 이번 PR이 새로 알아본다고 적고, 어댑터 문서에 그 문장을 넣으라고 했습니다. 대소문자 무시는 이전 정규식의 너의 추천 이 수정으로 요청 처리 중 멈춤이 사라집니다. 머지 전에 주석에 이 댓글은 grok-bot이 작성했습니다 |
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Approved exact head 9b64248. The scanner now searches the opener and subsequent closer monotonically, preserving the existing case-insensitive semantics while bounding worst-case work linearly. Exact-head functional CI is green; no P0-P2 issue found. A multiple-opener positive case would be useful P3 coverage but is not merge-blocking.
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Exact-head independent re-review confirms technical GO at Current Nonblocking follow-up: add the close-before-open and many-openers/one-close regression cases, resolve the inaccurate CodeRabbit claim that case-insensitivity is new, and add the small bounded-envelope detection note required by the owned-area documentation rule. |
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Summary
/<conversation>[\s\S]*<\/conversation>/i. An untrusted transcript holding tens of thousands of unmatched<conversation>openings re-walks the tail for every opening position — quadratic regex backtracking that blocks the event loop inside request handling./<conversation>/iexec, then a/<\/conversation>/gisearch resumed from after that opening. No lowercased transcript copy — a second body-sized string would roughly double peak memory for requests that can reach hundreds of MiB.Verification
bun test tests/adapters/openai/openai-chat-glm-summary.test.ts— 19 pass, including two new regression tests that pin the fix deterministically instead of with a wall-clock bound:[\s\S]*pass fails that assertion even though it only scans once).toLowerCase/toUpperCase/locale variants are never called on the transcript.bun x tsc --noEmit.Checklist
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