octoturge 57af710b1a Verify the edge token at the upgrade, not in the first frame
`/ws/edge/v1` took its credential from a `token` field on the `hello`
message. It now takes it from `Authorization: Bearer` on the upgrade
request, verified before the socket exists, so an unauthenticated peer
gets an HTTP 401 and no WebSocket: no entry in `connections`, no frame
ever parsed, no state of any kind allocated for it.

The old arrangement worked, and every message type refused to act
without a verified farm. But "it cannot do anything" is a weaker
guarantee than "it does not exist" - an anonymous peer still got a live
socket and had its JSON run through `EdgeClientMessageSchema` and the
message switch before proving anything, and it took a timeout to stop
anyone holding sockets open for free. A `?token=` query parameter was
never on the table: a bearer credential in a URL lands in access logs,
proxy logs and error breadcrumbs, which is the thing the proxy's
hand-written `Debug` for `PrinterCommand` already exists to prevent.

The decision lives in `src/auth/edge_upgrade.ts`, a leaf module with no
imports but the error types - the same reason as `dispatch/job_status.ts`
and `stream.ts`. This is the authentication boundary for the entire
gateway protocol, so it should be the last thing only reachable through
a running database. It checks `scope` and not just the signature (the
same secret could be made to sign something else one day), rejects a
token whose farm claim is absent or not a string (that would otherwise
produce a connection whose `farmId` is `undefined`, which reads as
"every farm" to a lookup), and answers every failure with one message -
which part of a forged token to fix next is not something to tell its
holder.

`conn.farmId` is therefore set from the verified token in `open`, and
the `hello` handler no longer verifies anything. It still checks
`message.farm_id` against the token's farm, so a gateway naming a farm
its token was not minted for is refused rather than silently working
against the wrong one. The handshake timer stays but changed meaning: it
is no longer an auth timeout, just a bound on an authenticated socket
that never identifies its gateway.

Verified, not assumed. That a throwing `resolve` fails the upgrade is a
framework behaviour the whole design rests on, so `tests/
edge_upgrade.test.ts` stands up a real Elysia app with a real JWT plugin
and asserts a socket never opens without a valid edge token, and that a
resolved value reaches `ws.data`. The real `continuum-proxy` was also run
against this composition: valid token gives HTTP 101 with the farm taken
from the token, forged token gives 401 at the handshake.

The committed captures predate this and still contain `token:
"dev-token"`. That validates - the schema is a liberal reader - and is
harmless, because the field is now ignored and such a gateway is refused
at the upgrade for having no header. A test says so.

95 tests (was 85), `bunx tsc --noEmit` clean.
2026-10-17 13:59:56 +00:00
2026-10-03 10:10:28 +00:00

continuum-backend

Cloud control plane for Continuum. Bun + ElysiaJS, PostgreSQL (via pgCat/PgBouncer, with pgvector for frame embeddings), Valkey Streams, and Cloudflare R2 storage.

Run

bun install
scripts/dev-env.sh up        # Valkey + Postgres/pgvector, and print the URLs
scripts/dev-env.sh schema    # apply drizzle/ - same as bun run db:migrate
cp .env.example .env         # fill in the URLs it printed, plus R2_*, SUPABASE_JWT_SECRET
bun run dev

scripts/dev-env.sh uses docker-compose.yml when a Docker daemon is answering, and falls back to the same two services from apt when there is no usable container runtime - some sandboxes cannot run Docker at all, because dockerd needs CAP_NET_ADMIN for its bridge and user namespaces to unpack an image, and neither can be granted from inside. scripts/dev-env.sh status says which backend is in use.

Schema changes go through migrations: edit src/db/schema/, run bun run db:generate, and commit the file it writes to drizzle/ along with the schema change. scripts/dev-env.sh push reshapes a local database straight from the schema with no migration file, which is faster while a table is still moving but records nothing and will drop a column to make things match - so generate before committing. drizzle/0000_*.sql creates the vector extension itself; that line is hand-added, since drizzle-kit does not emit extension statements and the migration would otherwise only apply to a database somebody had already prepared.

Test

bun test                 # unit + protocol contract tests, no services needed
scripts/e2e-edge.sh      # the whole edge path: real database, real printers

scripts/e2e-edge.sh seeds a farm, claims its printers, mints an edge token, runs the real continuum-proxy against this backend, and asserts that live telemetry reached Postgres and that a command reached a printer. It only ever sends a fan speed, and only to a printer reporting IDLE. scripts/capture-gateway-frames.js is the smaller tool: it stands in for this backend and records what a gateway sends, for refreshing the fixtures in tests/fixtures/.

Layout

  • src/db/ - Drizzle schema (printers, farms, print_jobs, frame_embeddings) and client, pointed at pgCat. src/db/validators.ts derives Elysia/TypeBox request validators straight from the Drizzle tables via drizzle-typebox, so the Postgres schema and the API validators come from one definition instead of two hand-synced ones.
  • src/s3/ - R2 presigned URL helpers (PUT for client uploads, GET for the edge proxy).
  • src/queue/ - Valkey client (ioredis) + XADD helper pushing onto stream:camera_frames for continuum-ai-worker.

Valkey, not Redis: Redis 7.4+ is RSALv2/SSPL and 8.0+ adds AGPLv3, none of which a commercial product can ship. Valkey is BSD-3-Clause and speaks the same RESP protocol, so ioredis is unchanged - only the server differs. See continuum-common/docs/LICENSES.md. docker-compose.yml here brings up Valkey and Postgres+pgvector for local development.

  • src/routes/ - /auth, /farms, /printers, /jobs, and the edge-gateway WebSocket at /ws/edge/v1. That route's wire format is not defined here: it is schemas/continuum/v1/edge/ in continuum-schemas, validated through its TypeBox mirror in @continuum/ts-types, because both ends of it are separate programs in different languages and they had already drifted apart once. printers.gateway_printer_id is what maps a gateway's own printer ids ("p1p") onto rows here; telemetry for an unclaimed id is logged and skipped, never inserted.

frame_embeddings.embedding requires the vector extension. The first migration creates it, and scripts/dev-env.sh up also does so for the push path, which does not run migrations.

Dependency pins

elysia, @sinclair/typebox and the drizzle-* packages are pinned tightly on purpose, not out of caution. Caret ranges here resolved into a combination that could not boot: elysia: ^1.1.26 installed 1.4.30, which calls t.Module and so needs TypeBox >=0.34, while drizzle-typebox: ^0.2.1 installed a version whose peers demand drizzle-orm >=0.36 against the ^0.33.0 pinned here. Typechecking passed throughout - only starting the server failed. tests/dependency_identity.test.ts guards the part of this that can silently come back.

S
Description
Continuum platform: continuum-backend
Readme
624 KiB
Languages
TypeScript 63.8%
Shell 35.4%
JavaScript 0.8%