diff --git a/backend/__tests__/integration/newsletterCampaigns.test.js b/backend/__tests__/integration/newsletterCampaigns.test.js
new file mode 100644
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+++ b/backend/__tests__/integration/newsletterCampaigns.test.js
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+/**
+ * Newsletter campaigns — render, recipients, queue, processor hook (#1264).
+ *
+ * These run against a real (temp SQLite) DB because the interesting parts of
+ * this feature are all row-level: which customers are selected, what
+ * `scheduled_at` values get written, whether the transaction rolls back, and
+ * whether an opt-out that lands AFTER queueing still stops the send.
+ */
+
+const { bootCrmDb, seedMinimal } = require('./helpers/crmDb');
+
+describe('newsletter campaigns', () => {
+ let db;
+ let cleanup;
+ let adminId;
+ let newsletterService;
+
+ beforeAll(async () => {
+ process.env.JWT_SECRET = process.env.JWT_SECRET || 'newsletter-test-secret';
+ ({ db, cleanup } = await bootCrmDb());
+ ({ adminId } = await seedMinimal(db));
+ newsletterService = require('../../src/services/newsletterService');
+ }, 120000);
+
+ afterAll(async () => {
+ if (cleanup) await cleanup();
+ });
+
+ beforeEach(async () => {
+ await db('email_campaign_recipients').del();
+ await db('email_queue').del();
+ await db('email_campaigns').del();
+ await db('customer_accounts').del();
+ });
+
+ async function seedCustomer(overrides = {}) {
+ const row = {
+ email: `c${Math.random().toString(36).slice(2, 10)}@example.com`,
+ first_name: 'Alex',
+ last_name: 'Sample',
+ display_name: 'Alex Sample',
+ company_name: 'Sample & Co',
+ preferred_language: 'en',
+ is_active: 1,
+ marketing_opt_out: 0,
+ created_at: new Date().toISOString(),
+ ...overrides,
+ };
+ const [id] = await db('customer_accounts').insert(row).returning('id');
+ return { id: typeof id === 'object' ? id.id : id, ...row };
+ }
+
+ async function seedCampaign(overrides = {}) {
+ return await newsletterService.createCampaign({
+ name: 'Spring news',
+ subject: 'Our spring offers',
+ bodyHtml: '
Hi {{first_name}}, welcome!
',
+ ...overrides,
+ }, adminId);
+ }
+
+ // ---- recipients --------------------------------------------------------
+
+ describe('resolveRecipients', () => {
+ it('selects active, opted-in customers with an email', async () => {
+ await seedCustomer({ email: 'in@example.com' });
+ const campaign = await seedCampaign();
+
+ const { recipients, skippedOptOut } = await newsletterService.resolveRecipients(campaign);
+
+ expect(recipients.map((r) => r.email)).toEqual(['in@example.com']);
+ expect(skippedOptOut).toBe(0);
+ });
+
+ it('skips opted-out customers and counts them', async () => {
+ await seedCustomer({ email: 'in@example.com' });
+ await seedCustomer({ email: 'out@example.com', marketing_opt_out: 1 });
+ const campaign = await seedCampaign();
+
+ const { recipients, skippedOptOut } = await newsletterService.resolveRecipients(campaign);
+
+ expect(recipients.map((r) => r.email)).toEqual(['in@example.com']);
+ expect(skippedOptOut).toBe(1);
+ });
+
+ it('skips inactive customers', async () => {
+ await seedCustomer({ email: 'in@example.com' });
+ await seedCustomer({ email: 'gone@example.com', is_active: 0 });
+ const campaign = await seedCampaign();
+
+ const { recipients } = await newsletterService.resolveRecipients(campaign);
+ expect(recipients.map((r) => r.email)).toEqual(['in@example.com']);
+ });
+
+ it('collapses duplicate addresses so one person is mailed once', async () => {
+ await seedCustomer({ email: 'same@example.com' });
+ await seedCustomer({ email: 'SAME@example.com' });
+ const campaign = await seedCampaign();
+
+ const { recipients } = await newsletterService.resolveRecipients(campaign);
+ expect(recipients).toHaveLength(1);
+ });
+
+ it('scopes a manual campaign to the named ids only', async () => {
+ const a = await seedCustomer({ email: 'a@example.com' });
+ await seedCustomer({ email: 'b@example.com' });
+ const campaign = await seedCampaign({
+ recipientMode: 'manual', customerIds: [a.id],
+ });
+
+ const { recipients } = await newsletterService.resolveRecipients(campaign);
+ expect(recipients.map((r) => r.email)).toEqual(['a@example.com']);
+ });
+
+ it('still honours opt-out inside a manual id list', async () => {
+ const a = await seedCustomer({ email: 'a@example.com', marketing_opt_out: 1 });
+ const campaign = await seedCampaign({ recipientMode: 'manual', customerIds: [a.id] });
+
+ const { recipients, skippedOptOut } = await newsletterService.resolveRecipients(campaign);
+ expect(recipients).toHaveLength(0);
+ expect(skippedOptOut).toBe(1);
+ });
+
+ it('skips every row sharing an opted-out address', async () => {
+ // #1285 review: unsubscribing flips only the row whose token was in the
+ // mail. Filtering row-by-row skipped that one and still delivered to
+ // the same inbox through the duplicate — so the link appeared to do
+ // nothing.
+ await seedCustomer({ email: 'shared@example.com', marketing_opt_out: 1 });
+ await seedCustomer({ email: 'SHARED@example.com', marketing_opt_out: 0 });
+ await seedCustomer({ email: 'other@example.com' });
+ const campaign = await seedCampaign();
+
+ const { recipients, skippedOptOut } = await newsletterService.resolveRecipients(campaign);
+
+ expect(recipients.map((r) => r.email)).toEqual(['other@example.com']);
+ // Counted once for the address, not once per row.
+ expect(skippedOptOut).toBe(1);
+ });
+
+ it('honours an opted-out twin that is NOT in the manual selection', async () => {
+ // The opted-out set is queried across every active customer, not just
+ // the selected ids — otherwise picking the opted-in twin of an
+ // unsubscribed account mails the address that opted out.
+ await seedCustomer({ email: 'twin@example.com', marketing_opt_out: 1 });
+ const selected = await seedCustomer({ email: 'TWIN@example.com', marketing_opt_out: 0 });
+ const campaign = await seedCampaign({
+ recipientMode: 'manual', customerIds: [selected.id],
+ });
+
+ const { recipients } = await newsletterService.resolveRecipients(campaign);
+ expect(recipients).toHaveLength(0);
+ });
+
+ it('returns nobody for a manual campaign with no ids', async () => {
+ await seedCustomer();
+ const campaign = await seedCampaign({ recipientMode: 'manual', customerIds: [] });
+
+ const { recipients } = await newsletterService.resolveRecipients(campaign);
+ expect(recipients).toHaveLength(0);
+ });
+ });
+
+ // ---- rendering ---------------------------------------------------------
+
+ describe('renderForRecipient', () => {
+ it('substitutes the customer variables', async () => {
+ const customer = await seedCustomer({ first_name: 'Jamie', email: 'j@example.com' });
+ const campaign = await seedCampaign({ bodyHtml: '
Hi {{first_name}} at {{company_name}}
' });
+
+ const { html } = await newsletterService.renderForRecipient(campaign, customer);
+
+ expect(html).toContain('Hi Jamie at Sample & Co');
+ });
+
+ it('escapes customer data on substitution', async () => {
+ // A customer's own company name is untrusted text — it must not be
+ // able to inject markup by riding in through a variable.
+ const customer = await seedCustomer({ company_name: '' });
+ const campaign = await seedCampaign({ bodyHtml: '
' });
+
+ const { html } = await newsletterService.renderForRecipient(campaign, customer);
+
+ const match = html.match(/\/api\/public\/newsletter\/unsubscribe\/([A-Za-z0-9_-]+)/);
+ expect(match).not.toBeNull();
+ expect(newsletterService.verifyUnsubscribeToken(match[1])).toBe(customer.id);
+ });
+
+ it('appends an unsubscribe link when the body omits the placeholder', async () => {
+ // The opt-out design rests on every campaign carrying the link; a body
+ // that simply leaves out {{unsubscribe_url}} must not break it.
+ const customer = await seedCustomer();
+ const campaign = await seedCampaign({ bodyHtml: '
No link in here
' });
+
+ const { html } = await newsletterService.renderForRecipient(campaign, customer);
+
+ const match = html.match(/\/api\/public\/newsletter\/unsubscribe\/([A-Za-z0-9_-]+)/);
+ expect(match).not.toBeNull();
+ expect(newsletterService.verifyUnsubscribeToken(match[1])).toBe(customer.id);
+ });
+
+ it('does not double up when the body places the link itself', async () => {
+ const customer = await seedCustomer();
+ const campaign = await seedCampaign({
+ bodyHtml: '
',
+ });
+
+ const { html } = await newsletterService.renderForRecipient(campaign, customer);
+
+ const links = html.match(/\/api\/public\/newsletter\/unsubscribe\//g) || [];
+ expect(links).toHaveLength(1);
+ });
+
+ it('prefers the customer language over the campaign language', async () => {
+ const german = await seedCustomer({ preferred_language: 'de' });
+ const campaign = await seedCampaign({ language: 'en' });
+
+ expect((await newsletterService.renderForRecipient(campaign, german)).language).toBe('de');
+ });
+
+ it('falls back to the campaign language when the customer has none', async () => {
+ const customer = await seedCustomer({ preferred_language: null });
+ const campaign = await seedCampaign({ language: 'de' });
+
+ expect((await newsletterService.renderForRecipient(campaign, customer)).language).toBe('de');
+ });
+
+ it('inlines the sanitized CSS into the body', async () => {
+ const customer = await seedCustomer();
+ const campaign = await seedCampaign({ bodyCss: '.cta { color: #fff; }' });
+
+ const { html } = await newsletterService.renderForRecipient(campaign, customer);
+ expect(html).toContain('.cta { color: #fff; }');
+ });
+
+ it('re-sanitizes a body that was stored unsanitized', async () => {
+ // Simulates a row written by an older/buggier version: the render path
+ // must not trust what is in the column.
+ const customer = await seedCustomer();
+ const campaign = await seedCampaign();
+ await db('email_campaigns').where({ id: campaign.id })
+ .update({ body_html: '
hi
' });
+ const tainted = await newsletterService.getCampaign(campaign.id);
+
+ const { html } = await newsletterService.renderForRecipient(tainted, customer);
+ expect(html).not.toContain('alert(1)');
+ });
+
+ it('wraps the body in the standard email chrome', async () => {
+ const customer = await seedCustomer();
+ const campaign = await seedCampaign();
+
+ const { html } = await newsletterService.renderForRecipient(campaign, customer);
+ expect(html).toContain('');
+ expect(html).toContain('email-footer');
+ });
+ });
+
+ // ---- unsubscribe tokens ------------------------------------------------
+
+ describe('unsubscribe tokens', () => {
+ it('round-trips a customer id', () => {
+ const token = newsletterService.unsubscribeToken(4242);
+ expect(newsletterService.verifyUnsubscribeToken(token)).toBe(4242);
+ });
+
+ it('rejects a tampered signature', () => {
+ const token = newsletterService.unsubscribeToken(1);
+ const decoded = Buffer.from(token, 'base64url').toString('utf8');
+ const tampered = Buffer.from(decoded.replace(/.$/, 'f'), 'utf8').toString('base64url');
+ expect(newsletterService.verifyUnsubscribeToken(tampered)).toBeNull();
+ });
+
+ it("rejects another customer's id spliced onto a valid signature", () => {
+ const token = newsletterService.unsubscribeToken(1);
+ const sig = Buffer.from(token, 'base64url').toString('utf8').split('.')[1];
+ const forged = Buffer.from(`2.${sig}`, 'utf8').toString('base64url');
+ expect(newsletterService.verifyUnsubscribeToken(forged)).toBeNull();
+ });
+
+ it.each([['', 'empty'], ['not-a-token', 'garbage'], ['!!!', 'non-base64']])
+ ('rejects %s (%s)', (token) => {
+ expect(newsletterService.verifyUnsubscribeToken(token)).toBeNull();
+ });
+
+ it('rejects null and non-strings', () => {
+ expect(newsletterService.verifyUnsubscribeToken(null)).toBeNull();
+ expect(newsletterService.verifyUnsubscribeToken(undefined)).toBeNull();
+ expect(newsletterService.verifyUnsubscribeToken(123)).toBeNull();
+ });
+ });
+
+ // ---- queueing ----------------------------------------------------------
+
+ describe('queueCampaign', () => {
+ it('writes one queue row and one recipient row per recipient', async () => {
+ await seedCustomer({ email: 'a@example.com' });
+ await seedCustomer({ email: 'b@example.com' });
+ const campaign = await seedCampaign();
+
+ const result = await newsletterService.queueCampaign(campaign.id, adminId);
+
+ expect(result.queued).toBe(2);
+ const queue = await db('email_queue').where({ campaign_id: campaign.id });
+ expect(queue).toHaveLength(2);
+ expect(queue.every((r) => r.email_type === 'newsletter')).toBe(true);
+ expect(queue.every((r) => r.origin === 'campaign')).toBe(true);
+ expect(queue.every((r) => r.status === 'pending')).toBe(true);
+ expect(await db('email_campaign_recipients').where({ campaign_id: campaign.id }))
+ .toHaveLength(2);
+ });
+
+ it('staggers scheduled_at by the send rate', async () => {
+ for (let i = 0; i < 5; i += 1) await seedCustomer({ email: `r${i}@example.com` });
+ const campaign = await seedCampaign({ sendRatePerMinute: 2 });
+
+ await newsletterService.queueCampaign(campaign.id, adminId);
+
+ const rows = await db('email_queue')
+ .where({ campaign_id: campaign.id }).orderBy('id', 'asc');
+ const minutes = rows.map((r) => Math.round(
+ (new Date(r.scheduled_at).getTime() - new Date(rows[0].scheduled_at).getTime()) / 60000
+ ));
+ // 2 per minute → minute 0, 0, 1, 1, 2.
+ expect(minutes).toEqual([0, 0, 1, 1, 2]);
+ });
+
+ it('writes queue timestamps in the engine shape the processor compares', async () => {
+ // #1285 review: storing ISO TEXT in a column the processor compares
+ // against a Date-bound value meant SQLite never matched the row — every
+ // INTEGER sorts below every TEXT — so campaigns silently sent nothing
+ // on SQLite installs.
+ //
+ // The due-predicate itself CANNOT be exercised here: under jest a
+ // sandbox-created Date binds as a string (the landmine documented in
+ // CLAUDE.md), so `INTEGER <= TEXT` is trivially true and every row
+ // reads as due whatever the fix does. So assert the stored SHAPE
+ // against the production shape utils/queueTimestamps documents for
+ // this engine instead.
+ await seedCustomer({ email: 'a@example.com' });
+ const campaign = await seedCampaign();
+ await newsletterService.queueCampaign(campaign.id, adminId);
+
+ const [row] = await db('email_queue').where({ campaign_id: campaign.id });
+
+ // SQLite: epoch ms, exactly what queueEmail's Date becomes through the
+ // native binding. Never an ISO string, which is what regressed.
+ expect(typeof row.scheduled_at).toBe('number');
+ expect(typeof row.created_at).toBe('number');
+ expect(Number.isFinite(row.scheduled_at)).toBe(true);
+ // Still a sane instant, not a truncated or NaN value.
+ expect(Math.abs(row.scheduled_at - Date.now())).toBeLessThan(120000);
+ });
+
+ it('clamps an absurd send rate', async () => {
+ await seedCustomer();
+ const campaign = await seedCampaign({ sendRatePerMinute: 100000 });
+
+ const result = await newsletterService.queueCampaign(campaign.id, adminId);
+ expect(result.sendRatePerMinute).toBe(newsletterService.MAX_RATE_PER_MINUTE);
+ });
+
+ it('moves the campaign to queued and records the recipient count', async () => {
+ await seedCustomer();
+ const campaign = await seedCampaign();
+
+ await newsletterService.queueCampaign(campaign.id, adminId);
+
+ const after = await newsletterService.getCampaign(campaign.id);
+ expect(after.status).toBe('queued');
+ expect(after.recipient_count).toBe(1);
+ expect(after.queued_at).toBeTruthy();
+ });
+
+ it('refuses to queue a campaign twice', async () => {
+ await seedCustomer();
+ const campaign = await seedCampaign();
+ await newsletterService.queueCampaign(campaign.id, adminId);
+
+ await expect(newsletterService.queueCampaign(campaign.id, adminId))
+ .rejects.toMatchObject({ statusCode: 409 });
+ });
+
+ it('refuses to queue with no recipients', async () => {
+ const campaign = await seedCampaign();
+ await expect(newsletterService.queueCampaign(campaign.id, adminId))
+ .rejects.toMatchObject({ statusCode: 400 });
+ });
+
+ it('refuses to queue an empty body', async () => {
+ await seedCustomer();
+ const campaign = await seedCampaign({ bodyHtml: '' });
+ await expect(newsletterService.queueCampaign(campaign.id, adminId))
+ .rejects.toMatchObject({ statusCode: 400 });
+ });
+
+ it('leaves nothing behind when the transaction fails', async () => {
+ await seedCustomer({ email: 'a@example.com' });
+ await seedCustomer({ email: 'b@example.com' });
+ const campaign = await seedCampaign();
+
+ // Force the second insert to fail: a unique (campaign_id,
+ // customer_account_id) row already exists for one of them.
+ const [{ id: firstId }] = await db('customer_accounts').select('id').orderBy('id').limit(1);
+ await db('email_campaign_recipients').insert({
+ campaign_id: campaign.id, customer_account_id: firstId,
+ email: 'a@example.com', status: 'queued', created_at: new Date().toISOString(),
+ });
+
+ await expect(newsletterService.queueCampaign(campaign.id, adminId)).rejects.toThrow();
+
+ // A partial queue — half a customer list mailed — is the outcome the
+ // transaction exists to prevent.
+ expect(await db('email_queue').where({ campaign_id: campaign.id })).toHaveLength(0);
+ expect((await newsletterService.getCampaign(campaign.id)).status).toBe('draft');
+ });
+ });
+
+ // ---- cancel ------------------------------------------------------------
+
+ describe('cancel', () => {
+ it('removes pending rows and leaves sent ones alone', async () => {
+ await seedCustomer({ email: 'a@example.com' });
+ await seedCustomer({ email: 'b@example.com' });
+ const campaign = await seedCampaign();
+ await newsletterService.queueCampaign(campaign.id, adminId);
+
+ // Pretend the first one already went out.
+ const rows = await db('email_queue').where({ campaign_id: campaign.id }).orderBy('id');
+ await db('email_queue').where({ id: rows[0].id })
+ .update({ status: 'sent', sent_at: new Date().toISOString() });
+ await db('email_campaign_recipients')
+ .where({ campaign_id: campaign.id, email_queue_id: rows[0].id })
+ .update({ status: 'sent' });
+
+ const result = await newsletterService.cancel(campaign.id, adminId);
+
+ expect(result.cancelled).toBe(1);
+ const remaining = await db('email_queue').where({ campaign_id: campaign.id });
+ expect(remaining).toHaveLength(1);
+ expect(remaining[0].status).toBe('sent');
+ expect((await newsletterService.getCampaign(campaign.id)).status).toBe('cancelled');
+ });
+
+ it('refuses to delete a cancelled campaign that already reached someone', async () => {
+ // The recipient rows cascade, and they are the only durable record of
+ // who received the mail once queue rows are pruned (#1285 review).
+ await seedCustomer({ email: 'a@example.com' });
+ await seedCustomer({ email: 'b@example.com' });
+ const campaign = await seedCampaign();
+ await newsletterService.queueCampaign(campaign.id, adminId);
+ const rows = await db('email_queue').where({ campaign_id: campaign.id }).orderBy('id');
+ await db('email_queue').where({ id: rows[0].id })
+ .update({ status: 'sent', sent_at: new Date().toISOString() });
+ await db('email_campaign_recipients')
+ .where({ campaign_id: campaign.id, email_queue_id: rows[0].id })
+ .update({ status: 'sent' });
+ await newsletterService.cancel(campaign.id, adminId);
+
+ await expect(newsletterService.deleteCampaign(campaign.id, adminId))
+ .rejects.toMatchObject({ statusCode: 409 });
+ });
+
+ it('still deletes a cancelled campaign that reached nobody', async () => {
+ await seedCustomer({ email: 'a@example.com' });
+ const campaign = await seedCampaign();
+ await newsletterService.queueCampaign(campaign.id, adminId);
+ await newsletterService.cancel(campaign.id, adminId);
+
+ await expect(newsletterService.deleteCampaign(campaign.id, adminId))
+ .resolves.toEqual({ deleted: true });
+ });
+
+ it('refuses to cancel a draft', async () => {
+ const campaign = await seedCampaign();
+ await expect(newsletterService.cancel(campaign.id, adminId))
+ .rejects.toMatchObject({ statusCode: 409 });
+ });
+ });
+
+ // ---- processor bookkeeping --------------------------------------------
+
+ describe('recordRecipientResult / recomputeCounts', () => {
+ it('moves the campaign to sending on the first result, then to sent', async () => {
+ await seedCustomer({ email: 'a@example.com' });
+ await seedCustomer({ email: 'b@example.com' });
+ const campaign = await seedCampaign();
+ await newsletterService.queueCampaign(campaign.id, adminId);
+ const rows = await db('email_queue').where({ campaign_id: campaign.id }).orderBy('id');
+
+ await newsletterService.recordRecipientResult(rows[0], { status: 'sent' });
+ expect((await newsletterService.getCampaign(campaign.id)).status).toBe('sending');
+
+ await newsletterService.recordRecipientResult(rows[1], { status: 'sent' });
+ const done = await newsletterService.getCampaign(campaign.id);
+ expect(done.status).toBe('sent');
+ expect(done.sent_count).toBe(2);
+ expect(done.completed_at).toBeTruthy();
+ });
+
+ it('counts a partial failure as a sent campaign, not a failed one', async () => {
+ await seedCustomer({ email: 'a@example.com' });
+ await seedCustomer({ email: 'b@example.com' });
+ const campaign = await seedCampaign();
+ await newsletterService.queueCampaign(campaign.id, adminId);
+ const rows = await db('email_queue').where({ campaign_id: campaign.id }).orderBy('id');
+
+ await newsletterService.recordRecipientResult(rows[0], { status: 'sent' });
+ await newsletterService.recordRecipientResult(rows[1], {
+ status: 'failed', errorMessage: 'mailbox full',
+ });
+
+ const done = await newsletterService.getCampaign(campaign.id);
+ expect(done.status).toBe('sent');
+ expect(done.sent_count).toBe(1);
+ expect(done.failed_count).toBe(1);
+ });
+
+ it('marks the campaign failed only when nothing got through', async () => {
+ await seedCustomer({ email: 'a@example.com' });
+ const campaign = await seedCampaign();
+ await newsletterService.queueCampaign(campaign.id, adminId);
+ const [row] = await db('email_queue').where({ campaign_id: campaign.id });
+
+ await newsletterService.recordRecipientResult(row, { status: 'failed', errorMessage: 'nope' });
+ expect((await newsletterService.getCampaign(campaign.id)).status).toBe('failed');
+ });
+
+ it('does not double-count a repeated result', async () => {
+ await seedCustomer({ email: 'a@example.com' });
+ const campaign = await seedCampaign();
+ await newsletterService.queueCampaign(campaign.id, adminId);
+ const [row] = await db('email_queue').where({ campaign_id: campaign.id });
+
+ await newsletterService.recordRecipientResult(row, { status: 'sent' });
+ await newsletterService.recordRecipientResult(row, { status: 'sent' });
+
+ expect((await newsletterService.getCampaign(campaign.id)).sent_count).toBe(1);
+ });
+ });
+
+ // ---- send-time opt-out re-check ---------------------------------------
+
+ describe('send-time opt-out', () => {
+ it('skips a customer who unsubscribed after the campaign was queued', async () => {
+ const customer = await seedCustomer({ email: 'a@example.com' });
+ const campaign = await seedCampaign();
+ await newsletterService.queueCampaign(campaign.id, adminId);
+ const [row] = await db('email_queue').where({ campaign_id: campaign.id });
+
+ // The gap this closes: consent withdrawn between queue and send.
+ await newsletterService.setMarketingOptOut(customer.id, true, 'link');
+ expect(await newsletterService.shouldSkipForOptOut(customer.id)).toBe(true);
+
+ await newsletterService.markSkippedOptOut(row);
+
+ const recipient = await db('email_campaign_recipients')
+ .where({ campaign_id: campaign.id }).first();
+ expect(recipient.status).toBe('skipped_opt_out');
+ expect((await db('email_queue').where({ id: row.id }).first()).status).toBe('cancelled');
+ });
+
+ it('skips a customer deactivated after queueing', async () => {
+ const customer = await seedCustomer();
+ await db('customer_accounts').where({ id: customer.id }).update({ is_active: 0 });
+ expect(await newsletterService.shouldSkipForOptOut(customer.id)).toBe(true);
+ });
+
+ it('skips when another account on the same address opted out', async () => {
+ // Consent belongs to the address: a click by the twin has to stop this
+ // mail too, or the person who unsubscribed still receives it.
+ const queued = await seedCustomer({ email: 'shared@example.com', marketing_opt_out: 0 });
+ await seedCustomer({ email: 'SHARED@example.com', marketing_opt_out: 1 });
+
+ expect(await newsletterService.shouldSkipForOptOut(queued.id, 'shared@example.com'))
+ .toBe(true);
+ });
+
+ it('does not skip an ordinary opted-in customer', async () => {
+ const customer = await seedCustomer();
+ expect(await newsletterService.shouldSkipForOptOut(customer.id)).toBe(false);
+ });
+ });
+
+ // ---- opt-out column ----------------------------------------------------
+
+ describe('setMarketingOptOut', () => {
+ it('stamps a timestamp when opting out and clears it when opting back in', async () => {
+ const customer = await seedCustomer();
+
+ await newsletterService.setMarketingOptOut(customer.id, true, 'link');
+ let row = await db('customer_accounts').where({ id: customer.id }).first();
+ expect(row.marketing_opt_out).toBeTruthy();
+ expect(row.marketing_opt_out_at).toBeTruthy();
+
+ await newsletterService.setMarketingOptOut(customer.id, false, 'admin');
+ row = await db('customer_accounts').where({ id: customer.id }).first();
+ expect(row.marketing_opt_out).toBeFalsy();
+ expect(row.marketing_opt_out_at).toBeNull();
+ });
+
+ it('ignores a repeated opt-out and preserves the original timestamp', async () => {
+ // #1285 review: link scanners, prefetchers and refreshes all re-hit an
+ // unsubscribe URL. Rewriting the timestamp each time buries the moment
+ // consent was actually withdrawn, and files a duplicate activity row.
+ const customer = await seedCustomer();
+ await newsletterService.setMarketingOptOut(customer.id, true, 'link');
+ const first = await db('customer_accounts').where({ id: customer.id }).first();
+
+ const second = await newsletterService.setMarketingOptOut(customer.id, true, 'link');
+
+ expect(second).toBe(false);
+ const after = await db('customer_accounts').where({ id: customer.id }).first();
+ expect(after.marketing_opt_out_at).toBe(first.marketing_opt_out_at);
+
+ const logs = (await db('activity_logs')
+ .where({ activity_type: 'customer_marketing_opt_out' }))
+ .filter((row) => JSON.parse(row.metadata).customerId === customer.id);
+ expect(logs).toHaveLength(1);
+ });
+
+ it('reports no-op for an unknown customer', async () => {
+ expect(await newsletterService.setMarketingOptOut(999999, true, 'link')).toBe(false);
+ });
+
+ it('writes an activity log entry naming the source', async () => {
+ const customer = await seedCustomer();
+ await newsletterService.setMarketingOptOut(customer.id, true, 'portal');
+
+ const log = await db('activity_logs')
+ .where({ activity_type: 'customer_marketing_opt_out' }).orderBy('id', 'desc').first();
+ expect(JSON.parse(log.metadata).source).toBe('portal');
+ });
+ });
+});
diff --git a/backend/__tests__/routes/adminNewsletters.test.js b/backend/__tests__/routes/adminNewsletters.test.js
new file mode 100644
index 00000000..4d0e0000
--- /dev/null
+++ b/backend/__tests__/routes/adminNewsletters.test.js
@@ -0,0 +1,308 @@
+/**
+ * HTTP contract for the newsletter admin surface (#1264).
+ *
+ * Three gates stack on every route, and the ORDER matters: auth, then the
+ * feature flag, then the permission. With the feature off the answer must be
+ * "disabled", not "forbidden" — otherwise an install that never enabled
+ * newsletters leaks the fact that the endpoint exists and is permission-gated.
+ *
+ * `newsletters.send` is deliberately separate from `newsletters.view`: mass
+ * mail is the one action here that cannot be taken back.
+ */
+
+const path = require('path');
+const fs = require('fs');
+const os = require('os');
+
+const tmpDir = fs.mkdtempSync(path.join(os.tmpdir(), 'picpeak-newsletters-'));
+process.env.NODE_ENV = 'test';
+process.env.TEST_DATABASE_PATH = path.join(tmpDir, 'db.sqlite');
+process.env.STORAGE_PATH = path.join(tmpDir, 'storage');
+fs.mkdirSync(process.env.STORAGE_PATH, { recursive: true });
+process.env.JWT_SECRET = process.env.JWT_SECRET || 'newsletter-route-secret';
+
+const request = require('supertest');
+const {
+ bootCrmDb, seedMinimal, assignAdminRole, mintAdminToken, buildRouteApp,
+} = require('../integration/helpers/crmDb');
+
+describe('admin newsletters routes', () => {
+ let db;
+ let cleanup;
+ let app;
+ let adminId;
+ let superToken;
+ let viewerToken;
+
+ const MOUNT = '/api/admin/newsletters';
+ const auth = (token) => ({ Authorization: `Bearer ${token}` });
+
+ async function setFlag(on) {
+ await db('feature_flags')
+ .insert({ key: 'newsletters', value: on ? 1 : 0 })
+ .onConflict('key')
+ .merge();
+ // requireFeatureFlag memoises for 10 s — clear it so the test sees the flip.
+ require('../../src/middleware/requireFeatureFlag').invalidateFeatureFlagCache();
+ }
+
+ beforeAll(async () => {
+ ({ db, cleanup } = await bootCrmDb());
+ ({ adminId } = await seedMinimal(db));
+ await assignAdminRole(db, adminId, 'super_admin');
+ superToken = mintAdminToken(adminId);
+
+ // A second admin holding newsletters.view but NOT newsletters.send.
+ const [viewerId] = await db('admin_users').insert({
+ username: 'viewer', email: 'viewer@example.com',
+ password_hash: 'x', is_active: 1, created_at: new Date().toISOString(),
+ }).returning('id');
+ const viewerAdminId = typeof viewerId === 'object' ? viewerId.id : viewerId;
+ const [roleId] = await db('roles').insert({
+ name: 'newsletter_viewer', display_name: 'Newsletter Viewer',
+ is_system: 0, priority: 10,
+ created_at: new Date().toISOString(), updated_at: new Date().toISOString(),
+ }).returning('id');
+ const viewerRoleId = typeof roleId === 'object' ? roleId.id : roleId;
+ const viewPerm = await db('permissions').where({ name: 'newsletters.view' }).first();
+ await db('role_permissions').insert({ role_id: viewerRoleId, permission_id: viewPerm.id });
+ await db('admin_users').where({ id: viewerAdminId }).update({ role_id: viewerRoleId });
+ viewerToken = mintAdminToken(viewerAdminId);
+
+ app = buildRouteApp(MOUNT, require('../../src/routes/adminNewsletters'));
+ await setFlag(true);
+ }, 120000);
+
+ afterAll(async () => {
+ if (cleanup) await cleanup();
+ });
+
+ beforeEach(async () => {
+ await db('email_campaign_recipients').del();
+ await db('email_queue').del();
+ await db('email_campaigns').del();
+ await db('customer_accounts').del();
+ await setFlag(true);
+ });
+
+ const createDraft = (over = {}) => request(app)
+ .post(MOUNT).set(auth(superToken))
+ .send({ name: 'Spring', subject: 'Spring offers', bodyHtml: '
Hi {{first_name}}
', ...over });
+
+ // ---- gates -------------------------------------------------------------
+
+ it('rejects an unauthenticated request', async () => {
+ expect((await request(app).get(MOUNT)).status).toBe(401);
+ });
+
+ it('refuses every route while the feature flag is off', async () => {
+ await setFlag(false);
+ const res = await request(app).get(MOUNT).set(auth(superToken));
+ expect(res.status).toBe(403);
+ expect(res.body.code).toBe('NEWSLETTERS_DISABLED');
+ });
+
+ it('answers "disabled", not "forbidden", when the flag is off', async () => {
+ // A super-admin holds every permission, so a 403 here can only come from
+ // the flag — which is the gate that must win.
+ await setFlag(false);
+ expect((await request(app).get(MOUNT).set(auth(superToken))).body.code)
+ .toBe('NEWSLETTERS_DISABLED');
+ });
+
+ it('lets newsletters.view read but not create', async () => {
+ expect((await request(app).get(MOUNT).set(auth(viewerToken))).status).toBe(200);
+
+ const res = await request(app).post(MOUNT).set(auth(viewerToken))
+ .send({ name: 'x', subject: 'y' });
+ expect(res.status).toBe(403);
+ });
+
+ it('refuses queue and cancel without newsletters.send', async () => {
+ const { body } = await createDraft();
+ const id = body.campaign.id;
+ expect((await request(app).post(`${MOUNT}/${id}/queue`).set(auth(viewerToken))).status).toBe(403);
+ expect((await request(app).post(`${MOUNT}/${id}/cancel`).set(auth(viewerToken))).status).toBe(403);
+ });
+
+ // ---- CRUD --------------------------------------------------------------
+
+ it('creates a draft and sanitizes the body on write', async () => {
+ const res = await createDraft({ bodyHtml: '
ok
' });
+
+ expect(res.status).toBe(201);
+ expect(res.body.campaign.status).toBe('draft');
+ expect(res.body.campaign.bodyHtml).not.toContain('alert(1)');
+
+ // And it is stored sanitized, not merely rendered so.
+ const row = await db('email_campaigns').where({ id: res.body.campaign.id }).first();
+ expect(row.body_html).not.toContain('alert(1)');
+ });
+
+ it('rejects a missing name or subject', async () => {
+ expect((await request(app).post(MOUNT).set(auth(superToken)).send({ subject: 'x' })).status).toBe(400);
+ expect((await request(app).post(MOUNT).set(auth(superToken)).send({ name: 'x' })).status).toBe(400);
+ });
+
+ it('rejects a subject carrying a newline (header injection)', async () => {
+ const res = await createDraft({ subject: 'Hi\r\nBcc: evil@example.com' });
+ expect(res.status).toBe(400);
+ });
+
+ it('rejects an over-long subject', async () => {
+ expect((await createDraft({ subject: 'x'.repeat(256) })).status).toBe(400);
+ });
+
+ it('edits a draft', async () => {
+ const { body } = await createDraft();
+ const res = await request(app).put(`${MOUNT}/${body.campaign.id}`)
+ .set(auth(superToken)).send({ subject: 'Updated' });
+ expect(res.status).toBe(200);
+ expect(res.body.campaign.subject).toBe('Updated');
+ });
+
+ it('refuses to edit a campaign that is no longer a draft', async () => {
+ await db('customer_accounts').insert({
+ email: 'a@example.com', is_active: 1, marketing_opt_out: 0,
+ created_at: new Date().toISOString(),
+ });
+ const { body } = await createDraft();
+ const id = body.campaign.id;
+ await request(app).post(`${MOUNT}/${id}/queue`).set(auth(superToken));
+
+ const res = await request(app).put(`${MOUNT}/${id}`).set(auth(superToken)).send({ subject: 'x' });
+ expect(res.status).toBe(409);
+ });
+
+ it('404s for an unknown campaign', async () => {
+ expect((await request(app).get(`${MOUNT}/999999`).set(auth(superToken))).status).toBe(404);
+ });
+
+ // ---- state machine -----------------------------------------------------
+
+ it('queues once and 409s on a second attempt', async () => {
+ await db('customer_accounts').insert({
+ email: 'a@example.com', is_active: 1, marketing_opt_out: 0,
+ created_at: new Date().toISOString(),
+ });
+ const { body } = await createDraft();
+ const id = body.campaign.id;
+
+ expect((await request(app).post(`${MOUNT}/${id}/queue`).set(auth(superToken))).status).toBe(200);
+ expect((await request(app).post(`${MOUNT}/${id}/queue`).set(auth(superToken))).status).toBe(409);
+ });
+
+ it('refuses to delete a queued campaign', async () => {
+ await db('customer_accounts').insert({
+ email: 'a@example.com', is_active: 1, marketing_opt_out: 0,
+ created_at: new Date().toISOString(),
+ });
+ const { body } = await createDraft();
+ const id = body.campaign.id;
+ await request(app).post(`${MOUNT}/${id}/queue`).set(auth(superToken));
+
+ expect((await request(app).delete(`${MOUNT}/${id}`).set(auth(superToken))).status).toBe(409);
+ });
+
+ it('deletes a draft', async () => {
+ const { body } = await createDraft();
+ expect((await request(app).delete(`${MOUNT}/${body.campaign.id}`).set(auth(superToken))).status)
+ .toBe(200);
+ });
+
+ // ---- dry run + preview -------------------------------------------------
+
+ it('reports recipient counts and opt-out skips without writing anything', async () => {
+ await db('customer_accounts').insert([
+ { email: 'a@example.com', is_active: 1, marketing_opt_out: 0, created_at: new Date().toISOString() },
+ { email: 'b@example.com', is_active: 1, marketing_opt_out: 1, created_at: new Date().toISOString() },
+ ]);
+ const { body } = await createDraft();
+
+ const res = await request(app)
+ .post(`${MOUNT}/${body.campaign.id}/recipients/resolve`).set(auth(superToken));
+
+ expect(res.status).toBe(200);
+ expect(res.body.recipientCount).toBe(1);
+ expect(res.body.skippedOptOut).toBe(1);
+ expect(res.body.estimatedMinutes).toBe(1);
+ // Dry run — nothing queued.
+ expect(await db('email_queue').count({ c: '*' })).toEqual([{ c: 0 }]);
+ });
+
+ it('renders a preview with sample data', async () => {
+ const { body } = await createDraft();
+ const res = await request(app)
+ .post(`${MOUNT}/${body.campaign.id}/preview`).set(auth(superToken)).send({});
+
+ expect(res.status).toBe(200);
+ expect(res.body.isSample).toBe(true);
+ expect(res.body.html).toContain('Hi Alex');
+ });
+
+ it('renders a preview for a named customer', async () => {
+ const [id] = await db('customer_accounts').insert({
+ email: 'real@example.com', first_name: 'Robin', is_active: 1,
+ marketing_opt_out: 0, created_at: new Date().toISOString(),
+ }).returning('id');
+ const customerId = typeof id === 'object' ? id.id : id;
+ const { body } = await createDraft();
+
+ const res = await request(app)
+ .post(`${MOUNT}/${body.campaign.id}/preview`).set(auth(superToken))
+ .send({ customerId });
+
+ expect(res.body.isSample).toBe(false);
+ expect(res.body.html).toContain('Hi Robin');
+ });
+
+ // ---- recipients listing ------------------------------------------------
+
+ it('paginates the recipients list', async () => {
+ await db('customer_accounts').insert(
+ Array.from({ length: 5 }, (_, i) => ({
+ email: `r${i}@example.com`, is_active: 1, marketing_opt_out: 0,
+ created_at: new Date().toISOString(),
+ }))
+ );
+ const { body } = await createDraft();
+ const id = body.campaign.id;
+ await request(app).post(`${MOUNT}/${id}/queue`).set(auth(superToken));
+
+ const res = await request(app)
+ .get(`${MOUNT}/${id}/recipients?page=1&limit=2`).set(auth(superToken));
+
+ expect(res.status).toBe(200);
+ expect(res.body.data).toHaveLength(2);
+ expect(res.body.pagination.total).toBe(5);
+ });
+
+ it('filters the recipients list by status', async () => {
+ await db('customer_accounts').insert({
+ email: 'a@example.com', is_active: 1, marketing_opt_out: 0,
+ created_at: new Date().toISOString(),
+ });
+ const { body } = await createDraft();
+ const id = body.campaign.id;
+ await request(app).post(`${MOUNT}/${id}/queue`).set(auth(superToken));
+
+ expect((await request(app).get(`${MOUNT}/${id}/recipients?status=queued`)
+ .set(auth(superToken))).body.data).toHaveLength(1);
+ expect((await request(app).get(`${MOUNT}/${id}/recipients?status=sent`)
+ .set(auth(superToken))).body.data).toHaveLength(0);
+ });
+
+ // ---- list filter -------------------------------------------------------
+
+ it('filters the campaign list by status', async () => {
+ await createDraft({ name: 'One' });
+ expect((await request(app).get(`${MOUNT}?status=draft`).set(auth(superToken)))
+ .body.campaigns).toHaveLength(1);
+ expect((await request(app).get(`${MOUNT}?status=sent`).set(auth(superToken)))
+ .body.campaigns).toHaveLength(0);
+ });
+
+ it('rejects an unknown status filter', async () => {
+ expect((await request(app).get(`${MOUNT}?status=bogus`).set(auth(superToken))).status).toBe(400);
+ });
+});
diff --git a/backend/__tests__/routes/publicUnsubscribe.test.js b/backend/__tests__/routes/publicUnsubscribe.test.js
new file mode 100644
index 00000000..72218923
--- /dev/null
+++ b/backend/__tests__/routes/publicUnsubscribe.test.js
@@ -0,0 +1,179 @@
+/**
+ * Public newsletter unsubscribe (#1264).
+ *
+ * The property under test is uniformity: a valid token, a forged one, an
+ * unknown customer and an already-unsubscribed customer must be
+ * indistinguishable from outside. Anything that varies — status, body,
+ * headers, an error page — is an oracle that turns this endpoint into a way
+ * to enumerate which customer ids exist.
+ */
+
+const path = require('path');
+const fs = require('fs');
+const os = require('os');
+
+const tmpDir = fs.mkdtempSync(path.join(os.tmpdir(), 'picpeak-unsub-'));
+process.env.NODE_ENV = 'test';
+process.env.TEST_DATABASE_PATH = path.join(tmpDir, 'db.sqlite');
+process.env.STORAGE_PATH = path.join(tmpDir, 'storage');
+fs.mkdirSync(process.env.STORAGE_PATH, { recursive: true });
+process.env.JWT_SECRET = process.env.JWT_SECRET || 'unsub-route-secret';
+
+const request = require('supertest');
+const { bootCrmDb, buildRouteApp } = require('../integration/helpers/crmDb');
+
+describe('GET /api/public/newsletter/unsubscribe/:token', () => {
+ let db;
+ let cleanup;
+ let app;
+ let newsletterService;
+ let customerId;
+
+ const MOUNT = '/api/public/newsletter';
+ const get = (token) => request(app).get(`${MOUNT}/unsubscribe/${token}`);
+ const post = (token) => request(app).post(`${MOUNT}/unsubscribe/${token}`);
+
+ beforeAll(async () => {
+ ({ db, cleanup } = await bootCrmDb());
+ newsletterService = require('../../src/services/newsletterService');
+ app = buildRouteApp(MOUNT, require('../../src/routes/publicNewsletter'));
+ }, 120000);
+
+ afterAll(async () => {
+ if (cleanup) await cleanup();
+ });
+
+ beforeEach(async () => {
+ // Cleared too: several cases assert on the presence or ABSENCE of a
+ // consent entry, which earlier cases in this file also write.
+ await db('activity_logs').del();
+ await db('customer_accounts').del();
+ const [id] = await db('customer_accounts').insert({
+ email: 'sub@example.com', is_active: 1, marketing_opt_out: 0,
+ created_at: new Date().toISOString(),
+ }).returning('id');
+ customerId = typeof id === 'object' ? id.id : id;
+ });
+
+ it('opts the customer out and stamps the timestamp', async () => {
+ const res = await post(newsletterService.unsubscribeToken(customerId));
+
+ expect(res.status).toBe(200);
+ const row = await db('customer_accounts').where({ id: customerId }).first();
+ expect(row.marketing_opt_out).toBeTruthy();
+ expect(row.marketing_opt_out_at).toBeTruthy();
+ });
+
+ it('needs no authentication', async () => {
+ // No cookie, no header, no session — a mail client on any device.
+ expect((await post(newsletterService.unsubscribeToken(customerId))).status).toBe(200);
+ });
+
+ it('is idempotent — clicking twice is not an error', async () => {
+ const token = newsletterService.unsubscribeToken(customerId);
+ const first = await post(token);
+ const second = await post(token);
+
+ expect(second.status).toBe(first.status);
+ expect(second.text).toBe(first.text);
+ });
+
+ it('answers identically for a valid token, a forged one and an unknown id', async () => {
+ const valid = await post(newsletterService.unsubscribeToken(customerId));
+ const forged = await post('dGFtcGVyZWQtdG9rZW4');
+ const unknown = await post(newsletterService.unsubscribeToken(987654));
+
+ for (const res of [forged, unknown]) {
+ expect(res.status).toBe(valid.status);
+ expect(res.text).toBe(valid.text);
+ expect(res.headers['content-type']).toBe(valid.headers['content-type']);
+ }
+ });
+
+ it('leaves other customers untouched when the token is forged', async () => {
+ await post('bm90LWEtcmVhbC10b2tlbg');
+ const row = await db('customer_accounts').where({ id: customerId }).first();
+ expect(row.marketing_opt_out).toBeFalsy();
+ });
+
+ it('rejects an id spliced onto another id\'s signature', async () => {
+ const token = newsletterService.unsubscribeToken(customerId);
+ const sig = Buffer.from(token, 'base64url').toString('utf8').split('.')[1];
+ const forged = Buffer.from(`${customerId + 1}.${sig}`, 'utf8').toString('base64url');
+
+ await post(forged);
+
+ // Neither the target nor the spliced neighbour is changed.
+ expect((await db('customer_accounts').where({ id: customerId }).first()).marketing_opt_out)
+ .toBeFalsy();
+ });
+
+ it('renders a script-free confirmation page', async () => {
+ const res = await post(newsletterService.unsubscribeToken(customerId));
+
+ expect(res.headers['content-type']).toMatch(/text\/html/);
+ expect(res.text).toContain('');
+ expect(res.text).not.toContain(' {
+ const res = await post(newsletterService.unsubscribeToken(customerId));
+ expect(res.text).toMatch(/transactional/i);
+ });
+
+ it('is not indexable', async () => {
+ const res = await post(newsletterService.unsubscribeToken(customerId));
+ expect(res.headers['x-robots-tag']).toMatch(/noindex/);
+ expect(res.headers['cache-control']).toMatch(/no-store/);
+ });
+
+ it('writes an activity log entry sourced to the link', async () => {
+ await post(newsletterService.unsubscribeToken(customerId));
+
+ const log = await db('activity_logs')
+ .where({ activity_type: 'customer_marketing_opt_out' }).orderBy('id', 'desc').first();
+ expect(log).toBeTruthy();
+ expect(JSON.parse(log.metadata)).toMatchObject({ source: 'link', optOut: true });
+ });
+
+ // A GET must not change consent. Mail-security scanners, link prefetchers
+ // and corporate gateways follow every URL in a message before a human sees
+ // it — a mutating GET would unsubscribe much of a campaign automatically.
+ describe('GET only asks', () => {
+ it('does not change consent', async () => {
+ const res = await get(newsletterService.unsubscribeToken(customerId));
+
+ expect(res.status).toBe(200);
+ const row = await db('customer_accounts').where({ id: customerId }).first();
+ expect(row.marketing_opt_out).toBeFalsy();
+ expect(row.marketing_opt_out_at).toBeNull();
+ });
+
+ it('offers a form that posts back to the same token', async () => {
+ const token = newsletterService.unsubscribeToken(customerId);
+ const res = await get(token);
+
+ expect(res.text).toMatch(/]+method="POST"/i);
+ expect(res.text).toContain(`/unsubscribe/${token}`);
+ });
+
+ it('writes no activity entry', async () => {
+ await get(newsletterService.unsubscribeToken(customerId));
+ const logs = await db('activity_logs')
+ .where({ activity_type: 'customer_marketing_opt_out' });
+ expect(logs).toHaveLength(0);
+ });
+
+ it('renders the same page for a forged token', async () => {
+ const valid = await get(newsletterService.unsubscribeToken(customerId));
+ const forged = await get('bm90LWEtdG9rZW4');
+ expect(forged.status).toBe(valid.status);
+ // Only the form action differs — it echoes the token back.
+ expect(forged.text.replace(/action="[^"]*"/, '')).toBe(
+ valid.text.replace(/action="[^"]*"/, '')
+ );
+ });
+ });
+});
diff --git a/backend/__tests__/services/newsletterService.sanitize.test.js b/backend/__tests__/services/newsletterService.sanitize.test.js
new file mode 100644
index 00000000..c2e026be
--- /dev/null
+++ b/backend/__tests__/services/newsletterService.sanitize.test.js
@@ -0,0 +1,161 @@
+/**
+ * newsletterService sanitizers (#1264).
+ *
+ * The composer is the one place in the app where an admin types HTML that is
+ * then mailed to every customer. Stored XSS here is the highest-severity bug
+ * this feature can have, so these cases are the contract: what gets stripped,
+ * what survives, and that running the sanitizer twice changes nothing (which
+ * is what lets the render path re-sanitize as a second line of defence).
+ */
+
+jest.mock('../../src/database/db', () => ({ db: jest.fn(), logActivity: jest.fn() }));
+
+const {
+ sanitizeCampaignBody, sanitizeCampaignCss, MAX_BODY_BYTES,
+} = require('../../src/services/newsletterService');
+
+describe('sanitizeCampaignBody', () => {
+ it('returns empty string for empty input', () => {
+ expect(sanitizeCampaignBody('')).toBe('');
+ expect(sanitizeCampaignBody(null)).toBe('');
+ expect(sanitizeCampaignBody(undefined)).toBe('');
+ });
+
+ it.each([
+ ['', 'alert(1)'],
+ ['', 'iframe'],
+ ['