0361ef35d037edf3ed4581069d770d5f46155173
7
Commits
| Author | SHA1 | Message | Date | |
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 synAdminandClaude Opus 5
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87f07baaff |
feat(auth): the Google sign-in round trip (#341)
Two routes, and a customer whose Google identity is already linked can sign in. Creating accounts and linking them are deliberately held back to the next two issues, so this change is about the protocol alone and can be reviewed as such. The authorization code flow, with PKCE. The browser is sent to Google, comes back carrying a code, and this server exchanges it over its own TLS connection, so nothing that can read the page ever holds a token. PKCE goes in even though this is a confidential client with a secret: it costs one hash and closes code interception outright rather than resting the whole flow on the secret staying secret. No JWKS fetch, and the reasoning is written into the module rather than left to be rediscovered. The id token arrives in the response to a request this server made, over TLS, directly to Google's token endpoint, which is exactly the case OpenID Connect permits skipping signature verification for. That removes a key fetch, a cache and a rotation path from the part of the codebase least worth having moving parts in. It removes none of the claim checks, and the comment says plainly that the moment an id token reaches this code from anywhere else, the reasoning stops holding. So the claim checks are load-bearing rather than belt and braces, and each has a test naming what accepting it blindly would allow. A wrong audience is a token minted for another application being replayed here. A wrong nonce is a token from an earlier attempt. A missing subject is an identity row keyed on nothing. Both spellings of the issuer are accepted because Google really does send both, and taking only one produces sign-ins that fail for some customers and not others. email_verified is compared to the boolean and never merely tested for truthiness. The string "false" is truthy, and the linking policy turns entirely on this flag, so that one line is the difference between a policy and an account-takeover path. The attempt cookie is the whole security of the callback, which is a plain GET anyone on the internet can invoke. It carries three secrets, minted separately because they are checked by different parties at different moments: state proves the callback belongs to the request this browser started, nonce proves the token was minted for this attempt, and the verifier proves the code is being spent by whoever asked for it. It is cleared on every path through the callback, so one attempt cannot be replayed even once. SameSite is Lax and not Strict, and that line has the longest comment in the file because it is the most expensive thing here to get wrong. The callback arrives as a cross-site top-level navigation; Strict withholds the cookie, the state check then fails, and every sign-in is refused with an error that looks exactly like tampering. Where the customer returns to survives the round trip in that cookie, and it is a value an attacker can propose. Unchecked, the start route is an open redirect wearing a sign-in flow as a disguise: a link on our own domain, with our own certificate, that lands somewhere else. Its own module, so it can be tested without a database and so the next path needing the same question has an obvious place to ask it. Its first draft used a regex that inverted its own character class and rejected every path, which passed every other test and would have broken every real sign-in — there is now a test for exactly that. Declining at Google's consent screen is a cancellation rather than a failure. The customer goes back where they were with nothing said, the same distinction #41 drew for a dismissed passkey prompt. A disabled account is refused here as well, because enforcing it on some sign-in routes and not others is how a disabled account keeps a way in. Signing in calls the shared function, not a third implementation that agrees today. There is a test that the resulting session is accepted by an unrelated route, which is what makes that sharing worth something rather than merely tidy. Verified: backend tsc clean for src and tests, 590 unit tests pass, lint back to the seven warnings that predate this branch. The integration suite covers the routes end to end with only the token exchange stubbed, and needs a database this machine has no Docker for. Closes #341 Co-Authored-By: Claude Opus 5 <noreply@anthropic.com> |
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 bermudalamb
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bcecda9122 |
fix(intake): stop a throttled sender being told their link is dead (#222)
Adding e2e specs for the submission page found a defect in the page they were written for, which is what they were for. One limiter counted page loads and submissions against the same twenty-per-quarter-hour allowance, so a sender working through a box of stock ran out after ten items — the exact person the feature exists for, and the exact case the limiter's own comment said must not be refused. The comment said refusing them costs a consignment while the number quietly did it. Worse, the page could not tell a 429 from a 404. `fetchIntakeLink` treated any non-OK response as "no link", so a throttled sender was told "This link is not active" and sent to ask for a replacement — which could not have helped, because the problem was their address and a minute of patience. Two conditions needing opposite reactions were sharing a message. Now two limiters, because the two requests cost different things. Reading a link hits one indexed row and writes nothing, so that allowance is generous at 120: someone re-reading the form or losing their signal should never be told to wait. Submitting writes up to six files, so that is the one worth bounding, at 30 — more than anyone photographing items can manage and far less than a script would want. The page gains a third state. Unknown, revoked and used-up still collapse into one "not active" card, because whether a link exists is not something a stranger needs to learn. Throttled is deliberately kept apart from them, since "wait a moment" and "go and ask for another link" are opposite instructions. Measured rather than assumed, on a freshly started process both times: before, 25 page loads produced 14 rejections; after, 40 produce none. The first attempt at that measurement was wrong and worth recording — the restart had failed with EADDRINUSE, so it read 30 of 30 against the old process's already-exhausted store. The two specs now pass in a full parallel run alongside everything else. They are scoped the way #241 asks: unique run ids, assertions naming only this run's rows, nothing asserted about the table as a whole. Backend: 284 integration, 309 unit. Frontend: build clean, lint unchanged at 2 pre-existing warnings. Ref #222, #241 |
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bermudalamb
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1fc632598a |
feat(intake): accept photo submissions through a shared link (#222)
The public way in. Photos of one item plus a free-text note, from someone with no account, landing as an `items` row at status 'pending' — already invisible to every public and storefront query since #90, so nothing is live by accident. Every refusal is a 404. Unknown, revoked and exhausted links are indistinguishable from outside, because whether a link exists is not something a stranger needs to be able to learn — the same reasoning uploads.ts applies to files. The link is resolved *before* multer runs, and that ordering is the point rather than an implementation detail. discardUnlessAccepted would delete the files afterwards, but "written then deleted" is materially worse than "never written" on an endpoint the whole internet can reach: it is disk churn an unauthenticated caller controls, and it leans on an unlink that a crash between write and delete would skip. A test asserts the volume is untouched for a bad token, so a future reordering fails loudly instead of quietly handing that control away. The link counter is incremented inside the transaction and guarded on the same conditions as the lookup, so two submissions racing for the last slot of a capped link cannot both succeed. The response carries no item id: the sender has no business knowing about the catalogue and nothing they could do with it. The AI is deliberately not called here. A slow or failing model request must not turn into a failed upload for someone who did nothing wrong, and the photos may be the only copy — the item is often no longer in the sender's hands. The row waits at state 'queued' for #223. The new limiter keys on the caller alone, since a submission carries no email. keyByCallerAndEmail's comment warns that a bare ip bucket is a shared allowance, and that trade is taken knowingly: the link is the per-caller identity and its cap is the per-caller bound, while this limiter does the different job of bounding what one address can throw at an endpoint that writes files. Twenty per fifteen minutes is deliberately looser than the password-reset allowance — somebody photographing a box of stock legitimately submits several in a row, and refusing them costs a consignment. Because the route mounts the shared uploadImages, it inherits the type allowlist, the magic-byte check and #226's EXIF stripping without asking for any of them. A test asserts the stripping specifically, since this is the route where it matters most: the photo comes from a stranger's phone rather than the shop's own camera. Backend: 284 integration (12 new), 309 unit, lint unchanged at 6 pre-existing warnings, build clean. Ref #222 |
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bermudalambandClaude Opus 5
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b8549e9c72 |
feat: let a customer resend their own verification email (#110)
A verification email was sent once, at registration. If it was lost, filtered, or arrived after the 24-hour token had expired, the customer had no route back except registering again with a different address. POST /api/customers/resend-verification mints a fresh token and sends the mail, and the account page grows a "Send it again" button beside the warning that was already there. The button only exists while the address is unverified: on a verified account it would be a control whose only outcome is a refusal, and the endpoint refuses that case rather than sending a pointless email. The mint-token-and-send sequence now lives in one place. Registration and the email change already did the same three steps - supersede any outstanding token, mint a new one, send it - and this would have been a third copy. The step most likely to be dropped in a copy is the supersede, and it is the one that matters: without it an older message still sitting in the inbox goes on verifying. Anything that makes the server send mail on request is an abuse vector, so this is rate limited to three an hour, keyed on the customer id. That is tighter than either existing limiter and sidesteps #84's IPv6 problem entirely, since a signed-in caller has an identity better than an address to count against and cannot escape the bucket by moving within a delegated prefix. The refusal says the mail probably did send and to check the spam folder, which is both more useful and more honest than a bare 429. The claim that keying on customer id also solved test isolation was wrong, and the tests caught it. resetDb truncates with RESTART IDENTITY, so every integration test's first customer is id 1: three tests that each sent once left the fourth starting at its limit, and two tests failed on a 429 they never asked for. A "fresh customer per test" is a fresh row with a recycled identity. The limiter now has an explicit exported store the suite clears between tests, and the comment that claimed otherwise has been corrected rather than left to mislead the next reader. Verification: seven integration tests covering the unauthenticated refusal, the send, the new token invalidating the old one - asserted through the endpoint that would honour the stale link rather than by counting rows - the new link actually verifying, the already-verified refusal, the allowance stopping the fourth send rather than merely reporting it, and one customer's exhausted allowance leaving another's intact. Three end-to-end tests for the button, its confirmation and the message on the fourth click. The 33 integration tests across the three suites this touched all pass, as do the 199 backend unit tests. tsc clean on both sides, ESLint no errors. Closes #110 Co-Authored-By: Claude Opus 5 <noreply@anthropic.com> |
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bermudalamb
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2f6e855596 |
fix(backend): stop IPv6 callers bypassing the password-reset rate limit (#84)
The QA stack has been logging ERR_ERL_KEY_GEN_IPV6 at every boot, and express-rate-limit was right to complain. keyByCallerAndEmail built its key from req.ip raw. For an IPv4 caller that is one address and the limiter worked as intended. For an IPv6 caller it is the full 128 bits — and a residential IPv6 customer is delegated an entire prefix and can source every request from a different address inside it at no cost. Keyed that way, each request counted as a new caller and the allowance of five per fifteen minutes never bound at all. That matters more here than it would elsewhere, because of what this limiter is for. Its own comment says it: without one, anyone can make the server send unlimited mail to any address they choose. For IPv6 clients there effectively was no limiter, while the code read as though there were. The caller half of the key now goes through express-rate-limit's ipKeyGenerator, which groups IPv6 by prefix and returns IPv4 unchanged. The helper's default is /56 rather than /64, and that default is kept deliberately: /56 covers a whole delegated site, so an attacker cannot escape their bucket by moving within their own allocation. It does mean several households behind one delegation share an allowance — acceptable only because the key also carries the email address, so they collide just when targeting the same account. The reasoning sits next to the code, because a future reader tightening it to /64 would silently reopen the hole. keyByCallerAndEmail is now exported so it can be tested directly. The limiter's allowance is still not asserted anywhere, and should not be: its store is process-wide, so a test that exhausts it leaks into every later test from the same address and fails something unrelated later. The key function is pure, and it is where the bug was. Verified by firing the guard rather than reasoning about it: building main and loading the module reproduces the ValidationError, and the same load with this change is silent. Seven new unit tests cover an IPv4 caller unchanged, two addresses in one delegation collapsing to a single key, separate delegations staying apart, an IPv4-mapped address keying the same as the plain IPv4 one, email normalisation, a non-string email, and a request with no address at all. 86 unit tests pass, 144 integration, lint 0 errors and 8 warnings — unchanged. Closes #84 Co-Authored-By: Claude Opus 5 <noreply@anthropic.com> |
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bermudalambandClaude Opus 5
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c693672051 |
feat(backend): log client-side render errors to the server (#62)
The frontend's error boundaries need somewhere to report to. A boundary that only shows a customer a message leaves nobody knowing it happened, which is the failure shape this project has designed against three times already. POST /api/client-errors takes a report, truncates its fields, logs it with a [client-error] prefix and returns 204. No storage: the container log is where this project's operational visibility already lives, and a table with a retention policy and an admin screen is a subsystem larger than the issue. An unrecognised context is a 400 rather than a log line under a guessed label, following parseItemFilters, which refuses a malformed filter instead of coercing it. Oversized fields go the other way and are truncated rather than refused, because an over-long report is still the only record of the failure. The endpoint gets its own rate limiter rather than reusing passwordResetRequestLimiter, whose comment already warns that its caller-and-email key collapses every caller into one shared bucket on an endpoint without an email. The new one takes the default key generator, which also avoids the ERR_ERL_KEY_GEN_IPV6 warning the custom key produces. Verified: 138 integration tests pass, 4 of them new, and 79 unit. The unit count rose by one without a test being written — routesAreWrapped.test.ts runs describe.each over the files in src/routes, so a new route file generates a case. The handler is synchronous and needs no asyncRoute wrapper. Refs #62 Co-Authored-By: Claude Opus 5 <noreply@anthropic.com> |
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bermudalambandClaude Opus 5
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db7c61c89d |
feat: customer password reset via email round-trip (#32)
Adds "Forgot password?" to the login page, a request page, and a reset page reached by a one-hour, single-use token delivered by email. Reuses customer_tokens with a new password_reset kind alongside verify_email. The request endpoint always answers 200, whether or not the address has an account, so it cannot be used to test addresses for membership. Note /register still reveals existence through its 409 on a duplicate, so this protection is currently partial; closing that is its own change. Completing a reset deletes every session for that customer. A reset prompted by a compromise has to evict the intruder, and leaving a 30-day cookie alive would defeat the point. It also marks the address verified, since receiving the mail is exactly what verification proves, and supersedes any outstanding token so an older link in the inbox cannot be resurrected. Introduces the first rate limiting in the codebase, on the request endpoint only. The limiter is keyed on caller *and* submitted address: keying on IP alone would let one person lock out everyone behind the same proxy, and everything arrives via Nginx Proxy Manager. Applying that same limiter to the reset endpoint, which carries no address, collapsed every caller into one shared bucket -- so that endpoint is deliberately unlimited instead, protected by a 32-byte single-use token whose bcrypt work only runs after the token matches. The e2e tests read the issued token directly from Postgres rather than through a test-support endpoint. An endpoint returning a reset token for an arbitrary address is account takeover for every customer if it is ever reachable, and an environment gate is thin protection against that. Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com> |