3 Commits

Author	SHA1	Message	Date
Claude Fable 5	3d1f4fda53	#188: purpose-bound token keys via HKDF, jose replaces the homegrown JWT ... COLLAB_TOKEN_SECRET becomes a root key: every purpose derives its own HKDF-SHA-256 subkey (deriveTokenKey), and no code path signs with the root key directly. Collaboration tokens are signed and verified by jose with HS256 as an explicit allowlist; the sign/verify API turns async at its three call sites. Unsubscribe tokens move from a purpose-prefix string to the structural subkey, with a documented dual-verify window (legacy derivation accepted until 2026-11-01, covering the 90-day TTL of links in already-sent mail). The cross-runtime property that justified the homegrown implementation is now proven by a test: the built CJS and ESM dist artefacts round-trip tokens in both directions in child processes (jose v6 reaches CJS via Node's require(esm), pinned Node 22 images). Negative tests cover cross-purpose subkeys, root-key-signed tokens, alg:none and RS256. Refs #188 (ADR 0020) Co-Authored-By: Claude Fable 5 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_0168Ph5uBmHm8X28CSVpbpnJ	2026-07-30 06:41:11 +02:00
Claude Opus 4.8	9d288b2ad0	Wire real permissions into collab tokens and revocation (#53) ... Live editing now obeys the same rules as REST: the collab-token mode comes from the shared grant resolution, anonymous visitors can join public pages, and revoking write access flips a running session to read-only within seconds. - Anonymous public tokens: `GET /pages/:id/collab-token` is `@Public()` but still permission-guarded, so a logged-out visitor gets an `ro` token where a `public` grant makes the page readable (404 otherwise). The token's `userId` is nullable (shared schema + collab context) for anonymous subjects. - Prompt revocation: the pond-level NOTIFY (#39) now also fires on label tree/assignment changes (LabelsService move/remove/assign/unassign), and the collab server closes the *actual* WebSocket instead of only sending an application-level close message. Hocuspocus' `closeConnections` leaves the socket open so the client only re-checks on its ~30s message timeout; `closeDocumentConnections` drops the socket so the client reconnects and re-authenticates with a freshly-resolved token at once — the "within seconds" downgrade the milestone promises. - Tests: the #52 fixture matrix gains anonymous cases (public grant → `ro`, none → 404); a collab db test proves an editor downgraded to reader goes read-only on reconnect (its post-downgrade edits no longer reach a peer); a new browser `collab-permissions` pack covers the read-only participant and the live downgrade end to end (new plain `fixture-editor` account). Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01EwZ4jR4KFAPvpjWevfUGX1	2026-07-09 18:48:42 +02:00
Claude Opus 4.8	d4ebcfcfbe	Add collaboration token issuance and connection authentication (#34) ... The api mints a short-lived (60 s) HS256 JWT per page open after an interim permission check; the collab server authenticates every connection with it (ADR 0003/0007 — the only JWTs in the system). - packages/shared: browser-safe token schema/types in `collab-token`, and the Node `crypto` sign/verify in `token-crypto` behind its own subpath export (`@dorfteich/shared/token-crypto`) so the web bundle never pulls in `node:crypto`. Only HS256 is produced/accepted; the signature is checked in constant time before any untrusted field is read. - api: `GET /pages/:id/collab-token` (auth-required) returns {token, mode, expiresInSeconds}; `mode` is rw/ro via the interim access service; issuance is logged at debug level without the token value. - collab: `onAuthenticate` verifies the token, checks the pageId matches the document name, stores {userId, mode} context, and enforces `ro` via Hocuspocus' read-only connection flag. Hocuspocus' own signal handling is disabled so index.ts remains the single shutdown owner. - Shared COLLAB_TOKEN_SECRET env for api + collab (compose, dev overlay, .env.example, stage docs); a dev default keeps native dev/test/CI running. Tests: shared token round-trip/rejection; api endpoint e2e (auth required, claims, 404 for non-members/unknown ids); collab integration via HocuspocusProvider (valid token connects; expired/tampered/mismatched-page/ wrong-secret rejected; read-only writes dropped, verified with two clients). Closes #34 Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>	2026-07-08 15:52:19 +02:00