2 Commits

Include renames

Author	SHA1	Message	Date
bvandeusen	2141a0ac45	Registration closes itself once the instance has an owner ... Operator: *"registration should be open only for the first user and they get granted admin privileges. then registration is closed."* The old shape had a window in it. The first account was always allowed and became admin; every account after that was gated by `allow_registration` — which defaulted to ON. So the door stayed open between "my account exists" and "I remembered to turn it off in Settings", and on a public host that gap is the entire exposure: it starts the moment DNS resolves and lasts until someone remembers. Now the door shuts as a CONSEQUENCE of the admin account existing, in the same transaction that creates it. Not "defaults closed" — that would still need the first person to get in somehow. There is no window to remember, because there is no window. Re-opening it is a deliberate act in Settings → Access: turn it on, have the person register, turn it off. Crude, and it is the only mechanism there is — **there is no invite system**, not even a stub. That is real work (a token table, admin create/revoke, a redemption flow, expiry) and is filed as later work rather than smuggled into a release. An integration test covers it, because it is the interaction between two writes in one transaction: first register → 201 and `is_admin: true`; the setting is then false; a second register → 403; re-open deliberately and a third → 201, not admin. **This does not retroactively close an instance that already has users.** The close fires on first-account creation, so a server whose admin predates this keeps whatever the setting was — which was on. `docs/public-hosting.md` now says so explicitly, and step 1 of the checklist is "check" rather than "do" for exactly that reason.	2026-08-23 14:18:58 -04:00
bvandeusen	b6152ec18b	server: harden the surfaces a public deployment leaves exposed ... On a LAN the login form is reachable by people you already trust. Exposed, it is reachable by everyone, and nothing in front of it was counting. Three credential routes — /login, /register and /device-login — now throttle. Every attempt is counted against BOTH the account and the calling address, and either can refuse it. The account key is the one that matters and the one that cannot be forged: it stops stuffing against a known email no matter how many addresses the attempts arrive from. The address key bounds one source spraying many accounts, and is best-effort by nature — behind a proxy it comes from X-Forwarded-For, which a caller can set to anything if the app is exposed directly. That is exactly why it isn't the only key. The check runs BEFORE the password is verified, which is the other half of what this protects. bcrypt is deliberately slow; an unauthenticated caller who can trigger it without limit has a CPU exhaustion primitive as well as a guessing one. Sliding rather than fixed windows, because a fixed one lets twice the limit through across a boundary. Bucket count is capped so a rotating forged header can't turn the limiter into the exhaustion it prevents. A sign-in against an email with no account now spends a real bcrypt against a throwaway hash first. Without it "no such account" returned in microseconds while a wrong password took ~100ms, which is a reliable oracle for which emails are registered here. Every response carries a CSP with script-src 'self', object-src 'none' and frame-ancestors 'none', plus nosniff, a referrer policy and a permissions policy. The app has no inline and no third-party scripts, so this concedes nothing; the exceptions are honest — inline STYLE (Vue writes it itself for v-show and the FLIP), and remote images (a link preview renders the og:image of an arbitrary host, over either scheme, since a LAN install is served over http). HSTS only where the request already arrived over TLS, and scoped to the one host: no includeSubDomains, no preload, neither of which is this app's to commit. X-Forwarded-Proto detection moved into one `_is_https()` — the session cookie's Secure flag and HSTS are the same question, and answering it twice is how the two drift apart. docs/public-hosting.md is the rest of it: the four things only the operator can do (close registration, terminate TLS and forward the scheme, stop publishing the app port, back up the attachment volume as well as the database), and an honest list of what the app does NOT have — no email verification, no password reset, no second factor, no per-user quota, no audit log. Those aren't blockers for an instance whose accounts are people you know. They're the reason not to leave signups open to strangers.	2026-08-21 22:01:37 -04:00