Commit Graph

2 Commits

Author SHA1 Message Date
GareArc
eb5ef3dba5
feat(web): switch /device page to /openapi/v1 paths (Phase G.21)
Approve/deny + lookup + SSO endpoints now live under /openapi/v1/oauth/device/*.
Approve/deny use direct fetch with console session cookie + CSRF instead of
the /console/api-prefixed post() helper.
2026-04-27 00:32:31 -07:00
GareArc
fe8510ad1a
feat(api,web): OAuth 2.0 device flow + bearer auth (RFC 8628)
Adds a CLI-friendly authorization flow so difyctl (and future
non-browser clients) can obtain user-scoped tokens without copy-
pasting cookies or raw API keys. Two grant paths share one device
flow surface:

  1. Account branch — user signs in via the existing /signin
     methods, /device page calls console-authed approve, mints a
     dfoa_ token tied to (account_id, tenant).
  2. External-SSO branch (EE) — /v1/oauth/device/sso-initiate signs
     an SSOState envelope, hands off to Enterprise's external ACS,
     receives a signed external-subject assertion, mints a dfoe_
     token tied to (subject_email, subject_issuer).

API surface (all under /v1, EE-only endpoints 404 on CE):

  POST   /v1/oauth/device/code              — RFC 8628 start
  POST   /v1/oauth/device/token             — RFC 8628 poll
  GET    /v1/oauth/device/lookup            — pre-validate user_code
  GET    /v1/oauth/device/sso-initiate      — SSO branch entry
  GET    /v1/device/sso-complete            — SSO callback sink
  GET    /v1/oauth/device/approval-context  — /device cookie probe
  POST   /v1/oauth/device/approve-external  — SSO approve
  GET    /v1/me                             — bearer subject lookup
  DELETE /v1/oauth/authorizations/self      — self-revoke
  POST   /console/api/oauth/device/approve  — account approve
  POST   /console/api/oauth/device/deny     — account deny

Core primitives:
- libs/oauth_bearer.py: prefix-keyed TokenKindRegistry +
  BearerAuthenticator + validate_bearer decorator. Two-tier scope
  (full vs apps:run) stamped from the registry, never from the DB.
- libs/jws.py: HS256 compact JWS keyed on the shared Dify
  SECRET_KEY — same key-set verifies the SSOState envelope, the
  external-subject assertion (minted by Enterprise), and the
  approval-grant cookie.
- libs/device_flow_security.py: enterprise_only gate, approval-
  grant cookie mint/verify/consume (Path=/v1/oauth/device,
  HttpOnly, SameSite=Lax, Secure follows is_secure()), anti-
  framing headers.
- libs/rate_limit.py: typed RateLimit / RateLimitScope dispatch
  with composite-key buckets; both decorator + imperative form.
- services/oauth_device_flow.py: Redis state machine (PENDING ->
  APPROVED|DENIED with atomic consume-on-poll), token mint via
  partial unique index uq_oauth_active_per_device (rotates in
  place), env-driven TTL policy.

Storage: oauth_access_tokens table with partial unique index on
(subject_email, subject_issuer, client_id, device_label) WHERE
revoked_at IS NULL. account_id NULL distinguishes external-SSO
rows. Hard-expire is CAS UPDATE (revoked_at + nullify token_hash)
so audit events keep their token_id. Retention pruner DELETEs
revoked + zombie-expired rows past OAUTH_ACCESS_TOKEN_RETENTION_DAYS.

Frontend: /device page with code-entry, chooser (account vs SSO),
authorize-account, authorize-sso views. SSO branch detaches from
the URL user_code and reads everything from the cookie via
/approval-context. Anti-framing headers on all responses.

Wiring: ENABLE_OAUTH_BEARER feature flag; ext_oauth_bearer binds
the authenticator at startup; clean_oauth_access_tokens_task
scheduled in ext_celery.

Spec: docs/specs/v1.0/server/{device-flow,tokens,middleware,security}.md
2026-04-26 20:06:43 -07:00