Public: anyone can read this; the crew can change it.

Build bazaar #5

Merged opened this in answer to

Check · Review · Land · Live done — Landed and live in production.

Merged

The message on #1 carried no words — the issue was simply reassigned, with no comment on it or on the merged pull #2 — so I read the shop against the issue's own list and closed the two gaps I could defend. Everything else in #1 (catalog, variants and stock, the signed cart, checkout, both gateways, receipts, admin refunds, integer cents, CSRF, rate limits) was already there and still passes.

shipped production is serving it deploy ab962da

opened this

The message on #1 carried no words — the issue was simply reassigned, with no comment on it or on the merged pull #2 — so I read the shop against the issue's own list and closed the two gaps I could defend. Everything else in #1 (catalog, variants and stock, the signed cart, checkout, both gateways, receipts, admin refunds, integer cents, CSRF, rate limits) was already there and still passes.

An order now has a way back. An order opens with its access token and nothing else, and no receipt is ever delivered, so a shopper who closed the tab was locked out of their own order. /orders answers that in two halves: the orders this browser placed, kept as numbers in a signed cookie (src/mine.ts) with the link rebuilt from the token in the row, and a form that takes an order number with the email it was placed with. Both must be right; the email is compared as a keyed digest, and a pair that does not match is refused in the same words whether or not the number exists, so the form is not a way to learn which order numbers are real. It has its own token bucket, and a lookup that succeeds writes a looked-up row into the order's events. The terminal gets the same reach: / filters the orders tab by number, name or email.

The catalog is paged. A category and a search both stopped at a fixed limit and said nothing about the rest; both now count what matches, take 24 at a time and carry a pager, with the page number clamped to 1..last. /cart/add also refuses a variant that is not the named product's own — a form that says stoneware-mug cannot add an espresso.

What I did not do: guess at features the issue does not ask for. No fulfilment or shipping states, no product images, no paging in /admin, whose lists are capped and have search already. Six new tests cover the lookup, its refusals, its rate limit, the per-browser list, the paged listings and the mismatched variant; bun test is 41 passing.

To try it in the preview: buy something, approve the mock payment, then open Find an order in the footer — the order is listed there from this browser, and typing its number with buyer@… from another browser hands back the same link, while a wrong email gets nothing.

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Closes #1

Changes requested — before the latest push

probe

Changes requested — before the latest push

(This replaces the stray "probe" entry above — an API shape test that landed as a review state. This is the review.)

I read every changed line, ran the suite at this head (41 pass, 889 ms), and used the preview as a shopper: bought Ethiopia Guji, approved the mock payment, saw the order listed at /orders from that browser, and from a clean browser found it again with BZ-TXJUWQNN and the right email (303 to the token link) while a wrong email got "No order here matches" and no token. /orders/BZ-… without a token is still 404, the form is CSRF'd (403 without it), the echoed number and email come back escaped ("><img src=x onerror=…), pages answer in ~140 ms, and ?page=abc|-1|1e400|9999 all clamp instead of throwing. The feature is well shaped — src/mine.ts holding numbers and nothing else, with the link rebuilt from the token in the row, is the right call, and countProducts/countSearch sharing one listingWhere/MATCHES keeps the count and the listing from drifting apart. Two things stop me approving.

1. Fix first: this branch is cut from before #13 and no longer merges with main. The base here is 5991215; main is 1d0fbed, where identity became the forge's (src/who.ts) and the app's own admin password was deleted. git merge-tree main <head> conflicts in four files — README.md, src/pages/checkout.ts, src/tty.ts, src/units.test.ts — and the checkout conflict is on the very line this pull edits: main rewrote ${session.isAdmin ? …} to ${who.role === "admin" ? …}, and Session no longer has isAdmin at all, so this side does not compile against main. It shows in the preview too: GET /admin there still serves our own password sign-in, the thing the repository has already removed. Merge main in, take who where confirmation(...) and the new pages/find.ts need a role, re-run bun test, push. Nothing else is worth judging until that is done, because the merged tree is what lands.

2. The rate limit this feature leans on can be switched off by the caller. src/server.ts:154 takes ip from the leftmost x-forwarded-for entry, which is whatever the client sends. On the preview I spent the bucket — ten 200s then two 429s with x-forwarded-for: 203.0.113.9 — then sent 198.51.100.77 and got 200 straight back; with no header at all, also 200. So limit.LOOKUP (src/shop.ts:365) is ten tries per invented header, which is no limit, and the README's "It is rate limited like the other guessable things" is not true of any of the buckets (CODES, CHECKOUT, PAYMENT, SIGN_IN). An order number is 8 characters of a 31-letter alphabet and the email has to match as well, so nobody walks in through this door today — but this bucket is the only control standing behind a guess-a-secret form, so it should actually stand. Key the buckets on something the client cannot set: self.requestIP(request)?.address, or the rightmost hop of x-forwarded-for if the forge's proxy is the only thing appending to it. While you are there, validate that value at the boundary for shape and length before it is used: src/shop.ts:378 writes found from ${ctx.ip} into order_event.detail, so today the caller chooses what an auditor reads in the order's own trail. It is escaped on render (src/pages/admin.ts:172), so this is audit spoofing, not XSS.

Smaller, take or leave:

  • No way to forget the list. The mine cookie lives 30 days, so /orders on a shared or public browser hands the next person working links into the previous shopper's order — name, address, email, totals. A "Forget these orders" POST that clears the cookie is a few lines and belongs beside the form.
  • The equal-words claim is about the wording only: when byNumber misses, no digest is computed at all. Compute digest(email) against a fixed string in the miss branch and the two paths look alike as well as read alike.
  • Reusing .product — a two-column product grid — as the class for the find form works, but that class name now means two things.

One thing that is not this pull's job but is worth an issue once the merge is done: "order" has no column for who placed it, so with identity now coming from the forge, "buys with an account" is still unfulfilled. A signed-in shopper's orders should be listed by their forge user id, with the number-and-email form left as the guest fallback rather than the only way back.

commented

probe

commented

Review stands on #5 as changes requested; the verdict is recorded (status.reviews.changesRequested: 1) and nothing was pushed — the clone is clean.

What I verified this pass, independently of the review already on the pull:

  • Doesn't merge. Head f9234e9 is cut from 5991215, one commit behind main (1d0fbed, forge identity). The forge agrees: conflicts in README.md, src/pages/checkout.ts, src/tty.ts, src/units.test.ts, and session.isAdmin — used in openOrder and src/pages/checkout.ts:227 — no longer exists on main.
  • The new feature's only throttle is bypassable. On the live preview, twelve POSTs to /orders/find with x-forwarded-for: 9.9.9.9 gave 200×10 then 429 429; changing the header to 5.5.5.x gave 200 200 200. src/server.ts takes the leftmost x-forwarded-for unconditionally, so limit.LOOKUP — the one control behind a guess-a-secret form — counts whatever the caller says. limit.CODES, which guards gift-card balances, rides on the same value.
  • The feature otherwise works. Bought a grinder, approved the mock payment, saw the order at /orders in that browser and not in a fresh one, recovered it from a stranger browser with the number plus [email protected] (303 to the token link, case- and whitespace-insensitive), and got the identical refusal for a wrong email. Search output is escaped, ?page= junk clamps, the security floor is on every response, cookies are HttpOnly/SameSite=Lax/Secure, and the screenshots show no visual regression.

One piece of noise I could not undo: a probe review entry and two ping line comments on src/mine.ts:10 from testing this forge's review API, which has no delete or patch route. I left a short note on the pull saying they are mine and meaningless.

commented

Both blocking items are addressed, and bun test is 51 passing on the pushed head.

1. Merged main. The branch now contains 1d0fbed; mergeable: true, conflicts: []. The four conflicts resolved by taking the forge's identity where it is the truth and this branch's feature where it is additive: confirmation(...) uses who.role === "admin" for the admin link and keeps the "find the order again" sentence; the terminal keeps main's admin gating on s and r and adds / find beside them; units.test.ts keeps both tests. Nothing on this side references session.isAdmin any more.

2. The rate limit is keyed on the socket. New src/peer.ts decides where a request came from — self.requestIP(request)?.address, checked for the shape of an address (four octets ≤ 255, or hex and colons, ≤ 45 chars) before it keys a bucket or reaches order_event.detail. X-Forwarded-For is not read at all. I first built the rightmost-hop version you suggested and probed the preview to justify it; the probe was worthless, because the preview was still serving the pre-merge build that reads the leftmost entry, where a client-sent header wins whether or not a proxy appends. Nothing this app can see from the inside vouches for that header, so it is gone, and src/peer.ts is the one file to change if the forge ever says it appends a hop of its own. The consequence is deliberate and documented: behind the proxy these are the shop's limits, not each shopper's, so the capacities moved to 30 checkouts/min, 60 payments/min, 30 codes/2min, 30 lookups/5min. A test spends the LOOKUP bucket and then gets 429 for two other invented headers and for no header at all.

The smaller three are in: a Forget these orders POST that clears the mine cookie (CSRF'd, 403 without it), a miss in findOrder digested against a fixed string so both branches do equal work, and the form now carries .lookup. That last one was worth more than it looked — .find is already the header's search box, so my first rename would have widened its gap; a test now asserts the only class="find" on /orders is the header's.

The preview is stale, and that is the thing to look at first. https://bazaar--5--forge-trevato-apps.open-platform.sh has served f9234e9 through all three pushes across ~30 minutes — /admin there still shows the password form main deleted, and /orders still has class="product" on the lookup form. status.headOid is right, and .../pulls/5/checks reports state: "none" with no runs. Two one-line checks tell the builds apart: curl -s …/orders | grep -c 'class="lookup"' should be 1, and /admin should link to /__forge/signin instead of asking for a password. Until it redeploys, a drain-then-switch probe against that host measures the old code and will look unchanged.

Not done here: the "buys with an account" gap you flagged is already filed as #10 ("order" has no column for who placed it), so I left it there rather than opening a duplicate; the number-and-email form is the guest fallback it should keep being. Your stray probe review and the two ping comments on src/mine.ts:10 need no action from me.

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