feat(email): add persistent smartmta storage and runtime-managed email domain syncing

test/test.email-domain-manager.node.ts

@@ -0,0 +1,193 @@
+import { tap, expect } from '@git.zone/tstest/tapbundle';
+import * as plugins from '../ts/plugins.js';
+import { EmailDomainManager } from '../ts/email/index.js';
+import { DcRouterDb, DomainDoc } from '../ts/db/index.js';
+import { EmailDomainDoc } from '../ts/db/documents/classes.email-domain.doc.js';
+import type { IUnifiedEmailServerOptions } from '@push.rocks/smartmta';
+
+const createTestDb = async () => {
+  const storagePath = plugins.path.join(
+    plugins.os.tmpdir(),
+    `dcrouter-email-domain-manager-${Date.now()}-${Math.random().toString(16).slice(2)}`,
+  );
+
+  DcRouterDb.resetInstance();
+  const db = DcRouterDb.getInstance({
+    storagePath,
+    dbName: `dcrouter-email-domain-${Date.now()}-${Math.random().toString(16).slice(2)}`,
+  });
+  await db.start();
+  await db.getDb().mongoDb.createCollection('__test_init');
+
+  return {
+    async cleanup() {
+      await db.stop();
+      DcRouterDb.resetInstance();
+      await plugins.fs.promises.rm(storagePath, { recursive: true, force: true });
+    },
+  };
+};
+
+const testDbPromise = createTestDb();
+
+const clearTestState = async () => {
+  for (const emailDomain of await EmailDomainDoc.findAll()) {
+    await emailDomain.delete();
+  }
+  for (const domain of await DomainDoc.findAll()) {
+    await domain.delete();
+  }
+};
+
+const createDomainDoc = async (id: string, name: string, source: 'dcrouter' | 'provider') => {
+  const doc = new DomainDoc();
+  doc.id = id;
+  doc.name = name;
+  doc.source = source;
+  doc.authoritative = source === 'dcrouter';
+  doc.createdAt = Date.now();
+  doc.updatedAt = Date.now();
+  doc.createdBy = 'test';
+  await doc.save();
+  return doc;
+};
+
+const createBaseEmailConfig = (): IUnifiedEmailServerOptions => ({
+  ports: [2525],
+  hostname: 'mail.example.com',
+  domains: [
+    {
+      domain: 'static.example.com',
+      dnsMode: 'external-dns',
+    },
+  ],
+  routes: [],
+});
+
+tap.test('EmailDomainManager syncs managed domains into runtime config and email server', async () => {
+  await testDbPromise;
+  await clearTestState();
+
+  const linkedDomain = await createDomainDoc('provider-domain', 'example.com', 'provider');
+  const updateCalls: Array<{ domains?: any[] }> = [];
+
+  const dcRouterStub = {
+    options: {
+      emailConfig: createBaseEmailConfig(),
+    },
+    emailServer: {
+      updateOptions: (options: { domains?: any[] }) => {
+        updateCalls.push(options);
+      },
+    },
+  };
+
+  const manager = new EmailDomainManager(dcRouterStub);
+  await manager.start();
+
+  const created = await manager.createEmailDomain({
+    linkedDomainId: linkedDomain.id,
+    subdomain: 'mail',
+    dkimSelector: 'selector1',
+    rotateKeys: true,
+    rotationIntervalDays: 30,
+  });
+
+  const domainsAfterCreate = dcRouterStub.options.emailConfig.domains;
+  expect(domainsAfterCreate.length).toEqual(2);
+  expect(domainsAfterCreate.some((domain) => domain.domain === 'static.example.com')).toEqual(true);
+
+  const managedDomain = domainsAfterCreate.find((domain) => domain.domain === 'mail.example.com');
+  expect(managedDomain).toBeTruthy();
+  expect(managedDomain?.dnsMode).toEqual('external-dns');
+  expect(managedDomain?.dkim?.selector).toEqual('selector1');
+  expect(updateCalls.at(-1)?.domains?.some((domain) => domain.domain === 'mail.example.com')).toEqual(true);
+
+  await manager.updateEmailDomain(created.id, {
+    rotateKeys: false,
+    rateLimits: {
+      outbound: {
+        messagesPerMinute: 10,
+      },
+    },
+  });
+
+  const domainsAfterUpdate = dcRouterStub.options.emailConfig.domains;
+  const updatedManagedDomain = domainsAfterUpdate.find((domain) => domain.domain === 'mail.example.com');
+  expect(updatedManagedDomain?.dkim?.rotateKeys).toEqual(false);
+  expect(updatedManagedDomain?.rateLimits?.outbound?.messagesPerMinute).toEqual(10);
+
+  await manager.deleteEmailDomain(created.id);
+  expect(dcRouterStub.options.emailConfig.domains.map((domain) => domain.domain)).toEqual(['static.example.com']);
+});
+
+tap.test('EmailDomainManager rejects domains already present in static config', async () => {
+  await testDbPromise;
+  await clearTestState();
+
+  const linkedDomain = await createDomainDoc('static-domain', 'static.example.com', 'provider');
+  const dcRouterStub = {
+    options: {
+      emailConfig: createBaseEmailConfig(),
+    },
+  };
+
+  const manager = new EmailDomainManager(dcRouterStub);
+
+  let error: Error | undefined;
+  try {
+    await manager.createEmailDomain({ linkedDomainId: linkedDomain.id });
+  } catch (err: unknown) {
+    error = err as Error;
+  }
+
+  expect(error?.message).toEqual('Email domain already configured for static.example.com');
+});
+
+tap.test('EmailDomainManager start merges persisted managed domains after restart', async () => {
+  await testDbPromise;
+  await clearTestState();
+
+  const linkedDomain = await createDomainDoc('local-domain', 'managed.example.com', 'dcrouter');
+  const stored = new EmailDomainDoc();
+  stored.id = 'managed-email-domain';
+  stored.domain = 'mail.managed.example.com';
+  stored.linkedDomainId = linkedDomain.id;
+  stored.subdomain = 'mail';
+  stored.dkim = {
+    selector: 'default',
+    keySize: 2048,
+    rotateKeys: false,
+    rotationIntervalDays: 90,
+  };
+  stored.dnsStatus = {
+    mx: 'unchecked',
+    spf: 'unchecked',
+    dkim: 'unchecked',
+    dmarc: 'unchecked',
+  };
+  stored.createdAt = new Date().toISOString();
+  stored.updatedAt = new Date().toISOString();
+  await stored.save();
+
+  const dcRouterStub = {
+    options: {
+      emailConfig: createBaseEmailConfig(),
+    },
+  };
+
+  const manager = new EmailDomainManager(dcRouterStub);
+  await manager.start();
+
+  const managedDomain = dcRouterStub.options.emailConfig.domains.find((domain) => domain.domain === 'mail.managed.example.com');
+  expect(managedDomain?.dnsMode).toEqual('internal-dns');
+});
+
+tap.test('cleanup', async () => {
+  const testDb = await testDbPromise;
+  await clearTestState();
+  await testDb.cleanup();
+  await tap.stopForcefully();
+});
+
+export default tap.start();