Commit Graph

2 Commits

Author SHA1 Message Date
wmantly 87c0d024d5 Per-host SSO: Node auth endpoints + Redis session (#57)
Adds the /__proxy_auth OIDC flow served on every proxied host:
- routes/host_auth.js: /start (PKCE+state, per-host redirect_uri), /callback
  (exchange, enforce the host allow-list via utils/host_sso.identityAllowed,
  mint session + set __proxy_sso cookie), /logout.
- models/sso_session.js: SsoSession (Redis-backed, TTL'd; read directly by the
  Lua gate) and HostSsoState (in-flight auth request).
- utils/oidc.js: per-host redirect_uri override on buildAuthUrl/exchangeCode.
- conf.hostSso (reuses conf.oidc). Allow-list logic unit-tested.

Enforcement (Lua gate + nginx location) lands next.

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
2026-07-11 15:41:28 -04:00
wmantly 10abd36340 Add OIDC login and per-domain authorization
Authentication previously implied full authorization: any valid token
could manage every host, DNS provider, domain, and user. This adds SSO
login and a per-domain rights model.

OIDC login (authorization_code + PKCE):
- conf.oidc + conf.auth blocks; clientSecret in (gitignored) secrets.js.
- utils/oidc.js (state/PKCE, code exchange, userinfo) using global fetch.
- models/oidc_state.js: short-lived state store, auto-expiring via
  model-redis 1.5 per-key TTL.
- routes/auth.js: GET /auth/oidc/start + /auth/oidc/callback; JIT-provisions
  a local user, mints an AuthToken carrying the SSO groups, hands the token to
  the browser via a URL fragment. "Log in with SSO" button on the login page.

Authorization (groups + app overrides, per-domain, with ownership):
- models/grant.js + utils/roles.js (pure, unit-tested): effective rights from
  conf.auth (admin users/groups, group->role map), Grant records
  (user|group -> global|domain -> viewer|manager|admin), and ownership
  (created_by). Roles rank admin > manager(owner) > viewer.
- AuthToken stores session groups; middleware/auth.js exposes req.groups.
- middleware/authz.js: requireAdmin, requireDomainRole(minRole, resolveDomain),
  filterViewable. Applied across routes: host mutations need manager on the
  host's domain; reads are filtered to visible domains; DNS providers, user
  management, and grant management are global-admin-only; certs need viewer.
- routes/grant.js: admin CRUD for grants. Anti-lockout via conf.auth.adminUsers
  plus migrations/grant_bootstrap.js.

Frontend: /me returns effective rights; nav gates Users/Grants to admins;
grants management page; OIDC token-fragment handling in app-base.js.

Tests: utils/roles and utils/oidc unit-tested (no redis); wired into the test
scripts. Full suite 89 pass. Also verified end-to-end against redis (grant
resolution, middleware allow/deny/403, list filtering) and the OIDC pure flow.

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
2026-07-10 12:17:05 -04:00