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lukasandClaude Opus 4.8 4e077f1a37 M3 plugin platform: SDK + loader, RLS-isolated tables, migrations, jobs
Backend foundation for the plugin platform (SPEC §11), Phases 1-3.

Phase 1 — SDK + loader:
- app/plugins/types.py: frozen Plugin/UiManifest/Slot/Page/JobSpec contract.
- app/plugins/sdk.py: sdk(name) facade — the only app.* import allowed for plugins
  (scoped session, plugin.{name}.* publish, blob, outbox, settings, SSRF http_get, KV, enqueue).
- app/plugins/loader.py: entry-point discovery (webmail.plugins), hook forwarding
  (API + worker), router mounting at /api/plugins/{name}, ui-manifest aggregation.
- plugin_kv core table (migration 0013) + GET /api/plugins/ui-manifest.

Phase 2 — non-removable core plugins + DB-enforced privacy:
- builtin flag (calendar/contacts will be builtin=True; uninstall refuses them).
- RLS per-user isolation on plg_* tables: least-privilege webmail_plugin role
  (migration 0014), plugin_session(user_id) sets LOCAL ROLE + app.current_user_id,
  rls.enable_rls() (ENABLE+FORCE RLS + USING/WITH CHECK policy). Mail untouched.
- Per-plugin Alembic runner (shared env, dedicated version table) + install/uninstall
  --drop-data CLI; skeleton fixture proves install -> run -> uninstall --drop-data
  leaves zero residue (§12 M3 acceptance).

Phase 3 — plugin jobs (§11.2):
- JobSpec registered as arq function plg.{plugin}.{func} + cron (5-field parser);
  singleton=True guarded by a per-(plugin,user) Redis lock; wired onto the shared
  interactive worker.

Gates: ruff, mypy --strict (94 files + tests), full suite 326 passed. RLS isolation,
migration round-trip, and singleton lock covered by tests.

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01Rcj3TpydMTzTSmU7kunzf8
2026-07-26 21:42:35 +02:00

36 lines
894 B
Python

"""demo plugin: a user-owned note table with RLS (skeleton for SPEC §11.1 tests)
Revision ID: demo0001
Revises:
Create Date: 2026-07-26
"""
from __future__ import annotations
from collections.abc import Sequence
from alembic import op
from app.plugins.rls import enable_rls
revision: str = "demo0001"
down_revision: str | None = None
branch_labels: str | Sequence[str] | None = None
depends_on: str | Sequence[str] | None = None
def upgrade() -> None:
op.execute(
"CREATE TABLE plg_demo_note ("
"id uuid PRIMARY KEY DEFAULT gen_random_uuid(), "
"user_id uuid NOT NULL, "
"body text NOT NULL DEFAULT '')"
)
# Per-user isolation enforced by Postgres (SPEC §11.1); every plg_ user-data
# table calls this right after creation.
enable_rls("plg_demo_note")
def downgrade() -> None:
op.execute("DROP TABLE IF EXISTS plg_demo_note")