Files
TREK/server/tests/unit/plugins/plugin-sdk.test.ts
T
mauriceboe 14b348581a feat(plugins): isolated per-plugin runtime + capability RPC (M1)
Every plugin now runs in its own forked child process with a scrubbed env
(no JWT_SECRET, no db path, nothing inherited). It talks to TREK only over a
JSON-RPC channel, and the host's capability router registers ONLY the methods a
plugin's granted permissions unlock — so an ungranted call is unreachable, not
merely refused. The plugin's own data lives in a separate sqlite file it can
never open directly; core reads (trips/users) go through membership-checked,
column-projected host methods; ws broadcasts are force-namespaced.

- protocol/envelope: the wire types + method→permission map (pure, shared by
  host and the isolated child)
- host/rpc-host: the capability router = the enforcement point (dispatch,
  BAD_PARAMS / PERMISSION_DENIED / RESOURCE_FORBIDDEN / UNKNOWN_METHOD)
- host/plugin-data: the per-plugin sqlite file (db:own), guarded against
  ATTACH/PRAGMA escape, idempotent migrations
- host/create-rpc-host: wires the router to the real db/websocket (host-only)
- runtime/plugin-sdk + plugin-host-entry: the child bootstrap + definePlugin
  ctx; turns each ctx call into an RPC, never imports a privileged module
- supervisor: spawn on activate, heartbeat/reap, crash backoff + auto-disable,
  graceful shutdown — a plugin crash/OOM/hang can never reach the Nest loop
- paths: code/data layout, dist-vs-tsx child entry resolution

Nothing is wired into activation yet (that's the next slice); exercised by unit
tests for the router/sdk/data and an integration test that forks a real child.
2026-07-03 16:18:55 +02:00

79 lines
3.2 KiB
TypeScript

/**
* The child-side SDK (#plugins, M1). Pure plumbing: every ctx method turns into
* an RPC call, config is frozen, and log is a fire-and-forget event. Runs
* in-process against a fake transport (no fork needed).
*/
import { describe, it, expect, vi } from 'vitest';
import { createPluginContext, definePlugin, type ChildTransport } from '../../../src/nest/plugins/runtime/plugin-sdk';
function fakeTransport() {
const rpc = vi.fn(async () => ({ ok: true }));
const emit = vi.fn();
const transport = { rpc, emit } as unknown as ChildTransport;
return { transport, rpc, emit };
}
describe('createPluginContext', () => {
it('maps each ctx method onto the right RPC call', async () => {
const { transport, rpc } = fakeTransport();
const ctx = createPluginContext('p', {}, transport);
await ctx.db.query('SELECT 1', 'a');
expect(rpc).toHaveBeenCalledWith('db.query', { sql: 'SELECT 1', args: ['a'] });
await ctx.db.migrate('001', 'CREATE TABLE t (x)');
expect(rpc).toHaveBeenCalledWith('db.migrate', { id: '001', sql: 'CREATE TABLE t (x)' });
await ctx.trips.getById(1, 42);
expect(rpc).toHaveBeenCalledWith('trips.getById', { tripId: 1, asUserId: 42 });
await ctx.ws.broadcastToTrip(1, 'ping', { a: 1 });
expect(rpc).toHaveBeenCalledWith('ws.broadcastToTrip', { tripId: 1, event: 'ping', data: { a: 1 } });
await ctx.users.getById(3);
expect(rpc).toHaveBeenCalledWith('users.getById', { id: 3 });
await ctx.db.exec('DELETE FROM t');
expect(rpc).toHaveBeenCalledWith('db.exec', { sql: 'DELETE FROM t', args: [] });
await ctx.trips.getPlaces(1, 42);
expect(rpc).toHaveBeenCalledWith('trips.getPlaces', { tripId: 1, asUserId: 42 });
await ctx.trips.getReservations(1, 42);
expect(rpc).toHaveBeenCalledWith('trips.getReservations', { tripId: 1, asUserId: 42 });
await ctx.ws.broadcastToUser(9, 'poke', { x: 2 });
expect(rpc).toHaveBeenCalledWith('ws.broadcastToUser', { userId: 9, event: 'poke', data: { x: 2 } });
});
it('log warn and error also emit events', () => {
const { transport, emit } = fakeTransport();
const ctx = createPluginContext('p', {}, transport);
ctx.log.warn('careful');
ctx.log.error('bad', { code: 1 });
expect(emit).toHaveBeenCalledWith('log', { level: 'warn', msg: 'careful', meta: undefined });
expect(emit).toHaveBeenCalledWith('log', { level: 'error', msg: 'bad', meta: { code: 1 } });
});
it('freezes config so a plugin cannot mutate its instance settings object', () => {
const ctx = createPluginContext('p', { api_key: 'secret' }, fakeTransport().transport);
expect(ctx.config.api_key).toBe('secret');
expect(() => {
(ctx.config as Record<string, unknown>).api_key = 'tampered';
}).toThrow();
});
it('log is a fire-and-forget event, not an RPC round-trip', () => {
const { transport, rpc, emit } = fakeTransport();
const ctx = createPluginContext('p', {}, transport);
ctx.log.info('hello', { n: 1 });
expect(emit).toHaveBeenCalledWith('log', { level: 'info', msg: 'hello', meta: { n: 1 } });
expect(rpc).not.toHaveBeenCalled();
});
it('definePlugin returns the definition unchanged', () => {
const def = { onLoad: async () => {} };
expect(definePlugin(def)).toBe(def);
});
});