Redis: per-app DB index (0-5) with shared auth DB 15 for SSO keys; flushdb replaces flushall so deploys don't wipe cross-app auth state. Postgres: drop 13 cross-domain FK constraints (migration v2t0p8q9r0), remove dead ORM relationships, add explicit joins for 4 live ones. Multi-engine sessions (account + federation) ready for per-domain DBs via DATABASE_URL_ACCOUNT / DATABASE_URL_FEDERATION env vars. All URLs initially point to the same appdb — zero behaviour change until split-databases.sh is run to migrate data to per-domain DBs. Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
Federation App
OAuth2 authorization server and ActivityPub social hub for the Rose Ash cooperative. Handles user authentication, fediverse federation, and social features (timeline, compose, follow, notifications).
Structure
app.py # Application factory (create_base_app + blueprints)
path_setup.py # Adds project root + app dir to sys.path
entrypoint.sh # Container entrypoint (optional migrations, Redis flush, start)
bp/
auth/ # Login, magic link, logout, OAuth2 authorize endpoint
identity/ # Actor profile management
social/ # Timeline, compose, search, follow/unfollow,
# like/boost, notifications, following/followers lists
fragments/ # Fragment endpoints
models/ # Re-export stubs pointing to shared/models/
services/ # register_domain_services() — wires all domains
templates/ # Federation-specific templates (override shared/)
OAuth2 SSO
Federation is the authorization server for all Rose Ash apps:
/oauth/authorize— authorization endpoint (PKCE supported)- Magic link login (passwordless email)
- All client apps auto-get
/auth/login,/auth/callback,/auth/logoutviashared/infrastructure/oauth.py - Per-app first-party session cookies (Safari ITP compatible)
ActivityPub
- Per-app actors: each app has its own AP actor (virtual projection of the same keypair)
- Actor endpoints: webfinger, actor profile, inbox, outbox, followers
- Social features: timeline, compose, search, follow/unfollow, like/boost, notifications
- Activities emitted to
ap_activitiestable, processed byEventProcessor - HTTP signatures + IPFS content addressing
Cross-domain communication
services.blog.*— post queries for content federationservices.calendar.*— event queriesservices.market.*— product queriesservices.cart.*— cart summary for context processor