d5e23c7d5f2838e1e89eae947000c25c1624cdfe
5
Commits
| Author | SHA1 | Message | Date | |
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 Vuong Hoang
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95beede3c3 |
fix(manifest)!: the size cap opened a service-wide hang; close it
The diff-scoped bug-hunt panel, four arms, artifact-only. Its strongest finding is one I created two hours earlier while hardening the reader. `stat` reports size 0 for a FIFO and 0 for a symlink to /dev/zero, so both sail under the byte cap added for the RecursionError round — and then `read_text` either blocks in read() with no EOF, so the except never runs, or allocates until the kernel intervenes. `list_booths` reads every booth on every GET / and /healthz, so ONE such file stalls the front page for the whole service, with no error and no recovery short of a restart. Reproduced before believing it (timeout returned 124). S_ISREG is checked BEFORE the size in both modules now; verified against the live service with two FIFOs planted, which answered 200 in 36ms. The shape worth carrying: st_size answers a different question than "can this be read", and a bound that trusts it inherits everything it does not mean. A hardening fix opened a worse hole than the one it closed. THE UPLOAD PATH WROTE ABOVE ITS OWN CLEANUP GUARD (4/4) A failed manifest write orphaned a .uploaded half-booth with no files in it — and because the temp name now carries a random suffix, nothing ever overwrote the leak, and .booth.json.<hex>.tmp is not a .lock, so _newest_mtime counted it and kept that empty booth past every sweep. The uniqueness fix from the previous round is what made the leak permanent. Both writes moved inside the guard; the temp is removed on every exit path. DAMAGED BYTES ARE KEPT, NOT REPLACED (4/4, INV-6) Marks made this explicit in v0.2.1 and this write path contradicted it: a manifest that failed on ONE field lost the others with it, including a why the re-announcer may never have kept anywhere. It diverges from marks in HOW it honours the rule — marks refuse and answer 409 because the operator's judgment is not restatable; a manifest quarantines and proceeds, because refusing would fail `booth add` and lose the files it was copying. ONE OPENNESS PREDICATE, AS U2 SAID (2/4) `booth answer` spelled out `if m.answer is None` while `booth marks` asked `open_marks`, so a partially-answered pick read as done to one verb and open to the other — at the same instant, on the same booth. U2's INV-2 put openness in one function precisely so they could not drift. The mirror case is fixed too: a pick that hydrates broken is refused by the web route, so `answer --wait` polled an hour on a form nothing could ever land. ALSO - now_stamp was whole-second while the importer had moved to microseconds, and '-' sorts before '.', so a later mark came out ahead of an earlier import inside the same second. One format; the previous round's ordering fix had opened this one. - `_broken` was the third of three directory-name fallbacks and the one still handing a raw name into a card's sub-line. - An identical re-announce rewrote the file and reset the TTL. `booth link` does this on every post to the standing board. - The importer's return went through the bare _hydrate, not _hydrate_safe. - A marks document could be written larger than it can be read back, and then read as no marks at all. Refused at the write instead. - `choice` reached the answer builder raw while `notes` beside it did not. AND ONE FINDING DELIBERATELY NOT FULLY CLOSED The mtime-restore race is real. The clean fix — ignore a booth directory's own mtime whenever the booth holds anything — also silently retires the documented rule that releasing a kept board resets its clock, which the CLI header, the README and a deliberately-written test all pin. That is a TTL doctrine change, not a bug fix, and an existing test caught the attempt. The concrete half is fixed (a failing os.utime escaped and 500'd the route); the race is stated in the code where the next reader will meet it. 341 tests. Live service restarted, 24/24 booth pages verified. |
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Vuong Hoang
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c015a917ee |
fix(manifest): fold in both cross-frontier panels — and a live hole in v0.2.2
Two four-arm artifact-only rounds landed together: the contract paraphrase (against the pre-seam-review capture) and the code-vs-contract conformance review (against the amended one), correctly firewalled from each other. The conformance round found ZERO drift in the strict sense — the code is a clause-for-clause implementation of the contract — and the weight of both rounds landed one layer down, in what green tests structurally cannot report. Full triage in persistent-memory.d/. A LIVE HOLE IN RELEASED CODE, FOUND ON THE SIBLING MODULE v0.2.2 adopted the RecursionError finding from the bug-hunt round and closed half of it: `_hydrate_safe` guards hydration, but `json.loads` runs above it in `_read_raw`, whose catch list covers neither RecursionError nor MemoryError. A 400 KB file of nothing but brackets in any ONE booth therefore still returned 500 for `/` and `/healthz` across every booth on the service. Confirmed by running it before believing it. Both modules now bound the read by `stat` before touching the bytes and catch both classes anyway, so raising a bound later cannot quietly re-open the hole. The strict half of the marks asymmetry refuses everything the lenient half tolerates, or a file that reads as "no marks" gets replaced by a write that believed it. THE WHY-WIPE `booth new x --why "..."` then `booth add x out/*.png` erased the sentence the first command existed to record. Omitted flags meant empty strings and empty strings overwrote. Two arms predicted it from the contract's wording alone; every test here passed --why on both calls and so could not see it. Omitted now means unchanged and an explicit --why "" still clears — the shell carries the distinction by leaving the variable UNSET, not empty. --title WAS WRITE-ONLY Stored, flag-surfaced, rendered nowhere. 4/4, and independently top-ranked by every arm of the paraphrase round. It lands on the booth page heading with the directory name beside it, because the directory name is the identity the operator navigates by and refers to positionally. THREE TESTS THAT COULD NOT FAIL - test_the_write_is_atomic asserted no *.tmp survived, which a plain write_text passes. It asserts the inode changes now. (The first replacement was ALSO vacuous — it spied on os.open, which Path.write_text reaches through io.open in C and never touches. Recorded in the test, because writing a second vacuous test while fixing the first is exactly the failure this round is about.) - The INV-3 preservation test passed against an implementation that regenerated `created` every time, because _now() is whole-second resolution and back-to-back writes share a stamp. Seeded from 2019 now. - test_announcing_is_activity passed whether or not _newest_mtime counted the manifest, because writing it bumps the directory mtime either way. The directory's clock is put back, leaving the file as the only thing that can keep the booth alive. ALSO - The title fallback skipped the normalizer the explicit value gets; a directory name may legally carry a newline and run to 255 bytes. - Every writer derived the same .booth.json.tmp. Marks are protected from that by their flock; the manifest has none, so uniqueness stands in. - test_stdlib_only was blind to relative imports in all four modules. - INV-1 had no guard at all; INV-5 named two different promises; the negative render states were asserted on the index only. Contract amended throughout: the 4 GB case is a stat-checked bound rather than a return constraint, every field of an error-carrying record has a stated value, INV-1 no longer contradicts INV-3, repo-wide rules are named in words instead of by a colliding number, and touches admits the macro partial the implementation added. 329 tests. |
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Vuong Hoang
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fac83de8f4 |
docs(u5): name the verbatim-booth boundary as U3's, not a gap
Five live booths serve the author's HTML raw and the Booth owns no header there to put a provenance line into — it reaches those pages through six regexes injected into arbitrary markup, which is the defect U3 exists to fix. Their index cards carry provenance like everything else. Written down so the boundary reads as a boundary rather than as something this unit forgot. Verified on pewpew-ui-brief. |
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Vuong Hoang
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ac35f2441f |
docs(u5): state what the contract deliberately leaves out
The out-of-scope block is load-bearing for the cross-frontier review gates — without negative constraints their signal-to-noise drops sharply, and both /heid-code-review and /heid-bug-hunt refuse to fire without one. Written for the reviewer, but it is the same list the roadmap gate produced: the what-landed feed is parked for v1.1, nothing enforces that a booth must announce itself (rsync is a documented path and never runs the CLI), and the manifest describes rather than decides — U4 owns lifetime. |
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Vuong Hoang
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109190b0d6 |
docs(u5): contract for self-announcing booths, plus its seam review
Blast-radius pass first (graphify explain list_booths + grep over every mkdir and every dotfile skip), then the contract, then a caller-side seam review against the real sibling module surfaces. The seam review earned its place again: the contract asserted that the upload path's filename dedupe set must gain MANIFEST_FILE or an uploaded file could collide with the manifest. safe_upload_name strips leading dots, so that collision is unreachable — and the UPLOAD_MARKER entry already sitting in that set has never been able to matter either. A scope item the contract reasoned its way into and the sibling refutes. Operator calls settled 2026-09-22: flags on the existing new/add verbs rather than a second announce verb; unannounced booths get a quiet marker rather than nothing; U5 adds provenance only and does not add a second index ordering keyed on announcement time (parked for v1.1). Cold contract panel dispatched to heid before this landed; its findings fold in before any code ships. |