Commit Graph

2 Commits

Author SHA1 Message Date
Anso 61a7e43d82 perf(proxy): cache LicenseService tier headers for the proxy hot path (#815)
The remote-node HTTP proxy and WebSocket forwarder read getTier() +
getVariant() on every forwarded request to set the Distributed License
Enforcement headers. Each call hits system_state 5+ times. Add a
30-second cached snapshot inside LicenseService and route every
license_status write through a new private setLicenseStatus() helper
so activate, deactivate, validate, and the auto-demote paths inside
getTier() all invalidate the cache.

Routing all license_status writes through one chokepoint also closes
a latent drift window: the self-heal paths in getTier() (trial
expired, offline grace exceeded, subscription expired) used to mutate
state silently and now invalidate the cache the same way explicit
license events do.

The TTL becomes a safety net against any future write that bypasses
the helper, not a load-bearing freshness bound. Existing 44 license
and distributed-license tests pass unchanged.
2026-04-28 00:13:07 -04:00
Anso dc3699189d refactor(backend): extract remote proxy, WebSocket upgrade handler, and server factory (phase 3) (#733)
Phase 3 of the index.ts refactor. Pulls the remote HTTP/WS proxy plumbing,
the WebSocket upgrade dispatcher, and the http/WSS construction out of the
monolith. index.ts drops roughly 620 lines.

New modules:
- proxy/websocketProxy.ts: shared httpProxy.createProxyServer singleton
  (used by both the HTTP proxy middleware and the remote WS forwarder)
- proxy/remoteNodeProxy.ts: createRemoteProxyMiddleware() factory; consumes
  the isProxyExemptPath helper instead of open-coding the prefix list
- server.ts: createServer(app) returns { server, wss, pilotTunnelWss }
- services/FleetUpdateTrackerService.ts: singleton wrapping the in-flight
  fleet update tracker Map with create()/resolve() helpers
- helpers/consoleSession.ts: mintConsoleSession(), isConsoleSessionScope()
- websocket/upgradeHandler.ts: attachUpgrade(server, deps) dispatcher that
  runs the manual cookie/JWT verify and delegates to sub-handlers
- websocket/pilotTunnel.ts: handlePilotTunnel (pilot_enroll consumption and
  pilot_tunnel registration)
- websocket/notifications.ts: /ws/notifications local subscriber
- websocket/remoteForwarder.ts: remote-node WS proxy with console_session
  token exchange for interactive paths
- websocket/logs.ts: /api/stacks/:name/logs supervisor stream
- websocket/hostConsole.ts: /api/system/host-console PTY, Admiral-gated
- websocket/generic.ts: /ws exec + streamStats action dispatch, owns the
  terminalWs single-instance reference
- websocket/reject.ts: shared rejectUpgrade helper (replaces five copies)

Service extension:
- NotificationService: setBroadcaster(fn) replaced by subscribe(ws) that
  returns an unsubscriber; broadcastToSubscribers is now internal. Subscriber
  set lives on the service rather than in index.ts.

Wiring in index.ts:
- const app = createApp() already in place from Phase 2
- const { server, wss, pilotTunnelWss } = createServer(app)
- attachUpgrade(server, { wss, pilotTunnelWss })
- app.use('/api/', createRemoteProxyMiddleware())
- /api/system/console-token route now uses mintConsoleSession()
- deploy/down/update routes read the streaming target via getTerminalWs()
  (return type is WebSocket | undefined so the || undefined fallback is gone)

Code review fixes: five duplicated reject helpers collapsed into
websocket/reject.ts; dropped the createTracker/resolveTracker bind
aliases in index.ts so call sites go through the service directly;
removed em dashes; replaced req.url! with req.url || '/'.
2026-04-23 19:31:16 -04:00