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-rw-r--r--src/features/ark.js4
-rw-r--r--src/i18n.js5
-rw-r--r--src/notify-text.js79
-rw-r--r--src/nwc-respond.js4
-rw-r--r--src/sw-nwc.js32
-rw-r--r--tools/call-wake-test.js4
-rw-r--r--tools/notif-spam-score.js82
-rw-r--r--tools/sw-push-quota.test.js2
8 files changed, 186 insertions, 26 deletions
diff --git a/src/features/ark.js b/src/features/ark.js
index 8b3121c..d1fa356 100644
--- a/src/features/ark.js
+++ b/src/features/ark.js
@@ -3616,8 +3616,8 @@ export function arkFeature(ctx) {
date: new Date(arkRenewWarn.deadlineMs).toLocaleDateString(),
});
navigator.serviceWorker?.ready
- .then((reg) => reg.showNotification('coinos', { body }))
- .catch(() => { try { new Notification('coinos', { body }); } catch {} });
+ .then((reg) => reg.showNotification(t('arkRenewWarnTitle'), { body }))
+ .catch(() => { try { new Notification(t('arkRenewWarnTitle'), { body }); } catch {} });
} catch {}
}
diff --git a/src/i18n.js b/src/i18n.js
index ac6066a..db54708 100644
--- a/src/i18n.js
+++ b/src/i18n.js
@@ -1235,7 +1235,10 @@ const STR = {
arkRenewForecast: 'Coins renew in ~{when} for {fee}.',
arkRenewForecastNow: 'Coins renew shortly for {fee}.',
arkBoardStuck: 'Moving money hit a snag and will keep retrying: {error}',
- arkRenewWarnPush: 'Your Spending balance is too small to renew itself and expires around {date}. Receive any amount or spend it to keep it alive.',
+ // the push's words are measured against Chrome's spam model (src/notify-text.js):
+ // 'too small to renew itself and expires around' scored 98, this 11
+ arkRenewWarnTitle: 'Spending balance',
+ arkRenewWarnPush: 'Receive or spend sats before {date} to keep it alive.',
giftArkOutstanding: '{n} unclaimed instant gift(s)',
giftArkRevoked: 'Gift swept back into Spending.',
claimArkFree: 'instant, no fee',
diff --git a/src/notify-text.js b/src/notify-text.js
new file mode 100644
index 0000000..a88ab14
--- /dev/null
+++ b/src/notify-text.js
@@ -0,0 +1,79 @@
+// The words of every notification the worker shows while the app is closed.
+//
+// Chrome on Android (and, quietly, on desktop) scores each web notification's
+// title and body with an on-device "unwanted notification" model before it
+// shows it, and above 90 of 100 the notification is replaced by a "Possible
+// spam" warning — hidden until the user taps "Show notification", and nine
+// such in a week revoke the site's permission outright on a phone that
+// doesn't visit much (Chromium kAutoRevokeSuspiciousNotification). Our old
+// wording scored 92–99 across the board: "Payment received", "Incoming
+// payment", "Payment request", "alice is calling", "New message", "alice
+// sent you a message" — the exact shape of the scam notifications the model
+// was trained (on synthetic data) to catch. What it lets through is less a
+// rule than a measurement; the scores here come from Chrome 156's model via
+// tools/notif-spam-score.js, which re-scores SAMPLES in a throwaway Chrome.
+// Measured 2026-11-03: "sats" reads as money without reading as a payment
+// scam (9–14), "payment" does not (95–97); a person's NAME in the body of a
+// message or reaction line pushes it over (80–99), "New chat" / "<name>"
+// does not (8–32); "reply" in any title is 96–99, "Someone replied" /
+// "Open coinos to see it." is 13; a reply's TEXT is uncontrollable (an
+// "@name" or a link in it scores 97+), so none rides along; "Calling" /
+// "<name>" is 11–29 where every "<name> is calling" shape is 80–99.
+// Re-run the scorer before changing any of these.
+
+export const OPEN = 'Open coinos to see it.';
+
+function sats(n) {
+ const v = Number(n);
+ return v > 0 ? `+${v.toLocaleString()} sats. ${OPEN}` : OPEN;
+}
+
+// A user-facing notification by reason. `d` is the push payload (amountSat,
+// emoji) plus what the device adds (a sender's name).
+export function notifyText(reason, d = {}) {
+ switch (reason) {
+ case 'payment': return ['Sats received', sats(d.amountSat)];
+ case 'zap': return ['Zap received', sats(d.amountSat)];
+ case 'dm': return ['New chat', d.name || 'Someone wrote to you'];
+ case 'chat': return ['New chat activity', 'There are new messages in your communities.'];
+ case 'mention': return [d.reply ? 'Someone replied' : 'You were mentioned', OPEN];
+ case 'reaction': {
+ // a unicode emoji in the title is fine (17); a :shortcode: is not (85)
+ const e = d.emoji && !/^:[\w-]+:$/.test(d.emoji) ? ' ' + d.emoji : '';
+ return ['New reaction' + e, `to your post. ${OPEN}`];
+ }
+ case 'call': return ['Calling', d.name || 'Someone'];
+ // the wallet was asked for an invoice while closed (someone paying its name)
+ case 'incoming': return ['Someone is sending sats', 'Open coinos to receive them.'];
+ // a connected app asked the closed wallet to pay
+ case 'spend': return ['Spend request', 'A connected app asked to spend sats. Open coinos to approve.'];
+ default: return notifyText('chat');
+ }
+}
+
+// What tools/notif-spam-score.js scores: one line per shape a user can see.
+export const SAMPLES = [
+ notifyText('payment', { amountSat: 1000 }),
+ notifyText('payment', { amountSat: 21 }),
+ notifyText('payment'),
+ notifyText('zap', { amountSat: 1000 }),
+ notifyText('zap'),
+ notifyText('dm', { name: 'alice' }),
+ notifyText('dm', { name: 'Bitcoin Bob' }),
+ notifyText('dm', { name: 'Jarryd' }),
+ notifyText('dm'),
+ notifyText('chat'),
+ notifyText('mention'),
+ notifyText('mention', { reply: true }),
+ notifyText('reaction', { emoji: '❤️' }),
+ notifyText('reaction', { emoji: '🤙' }),
+ notifyText('reaction', { emoji: ':pepe:' }),
+ notifyText('call', { name: 'alice' }),
+ notifyText('call', { name: 'Bitcoin Bob' }),
+ notifyText('call', { name: 'Alice Caller' }),
+ notifyText('call'),
+ notifyText('incoming'),
+ notifyText('spend'),
+ ['Payment sent', '-1,000 sats via Damus'],
+ ['Spending balance', 'Receive or spend sats before 11/20/2026 to keep it alive.'],
+];
diff --git a/src/nwc-respond.js b/src/nwc-respond.js
index 12101f5..98fd19c 100644
--- a/src/nwc-respond.js
+++ b/src/nwc-respond.js
@@ -14,6 +14,7 @@
// to a notification that opens the wallet.
import { hex } from '@scure/base';
+import { notifyText } from './notify-text.js';
import * as nip04 from 'nostr-tools/nip04';
import * as nip44 from 'nostr-tools/nip44';
import { finalizeEvent } from 'nostr-tools/pure';
@@ -198,7 +199,8 @@ async function respondOffer(ev, rec, walletKey, { notifier, fetchFn, saveFn, log
await saveFn(walletKey, rec);
await publish({ bolt11: a.invoice });
log(`minted ${sat} sat offer invoice while closed`);
- return { notify: { title: 'Incoming payment', body: 'Someone is paying you. Open Coinos to receive it.' } };
+ const [title, body] = notifyText('incoming');
+ return { notify: { title, body } };
} catch (e) {
log('offer mint failed: ' + e.message);
await publish({ error: 'Temporary Failure', code: 2 }).catch(() => {});
diff --git a/src/sw-nwc.js b/src/sw-nwc.js
index 3a48cff..a4e4e56 100644
--- a/src/sw-nwc.js
+++ b/src/sw-nwc.js
@@ -9,6 +9,7 @@ import { withRequestLock, withWorkLock } from './nwc-lock.js';
import { appendBgLog, takeLease } from './nwc-bg.js';
import { bgAutoWithdraw } from './bg-autowithdraw.js';
import { allInboxes, classifyDm, shouldNotifyDm, classifyCall } from './dm-inbox.js';
+import { notifyText } from './notify-text.js';
const NOTIFIER = 'https://nwcpush.coinos.io';
// The worker's diary (nwc-bg.js): every line also lands in IndexedDB as it is
@@ -108,8 +109,11 @@ self.addEventListener('push', (e) => {
await cache.put('/__pending-call', new Response(JSON.stringify({ offer: ring.offer, at: Date.now() }), { headers: { 'content-type': 'application/json' } }));
} catch (_) {}
for (const c of clients) { try { c.postMessage({ type: 'call-offer', offer: ring.offer }); } catch (_) {} }
- await show((ring.name || 'Someone') + ' is calling', {
- body: ring.type === 'video' ? 'Video call. Tap to answer.' : 'Voice call. Tap to answer.',
+ // the words are measured against Chrome's spam model (notify-text.js):
+ // "<name> is calling" is hidden behind a warning, "Calling" / "<name>" shows
+ const [callTitle, callBody] = notifyText('call', { name: ring.name });
+ await show(callTitle, {
+ body: callBody,
icon: 'icon-192.png', badge: 'badge-96.png',
tag: 'call', renotify: true, requireInteraction: true, vibrate: [400, 200, 400, 200, 400],
data: { url: './?open=call', view: 'call' },
@@ -141,24 +145,15 @@ self.addEventListener('push', (e) => {
if (verdict && verdict.name) dmName = verdict.name;
} catch (err) { console.warn('[sw-dm] could not classify:', err && err.message); }
}
- // A reaction names who, when this device knows them, and is dropped
- // when they are muted here — the notifier can't know either.
- let who = null;
+ // A reaction from someone muted on this device is dropped — the
+ // notifier can't know. (It no longer names who: a name in the line
+ // is what tips Chrome's spam model over, see notify-text.js.)
if (data.reason === 'reaction' && data.from) {
const boxes = await allInboxes().catch(() => []);
if (boxes.some((b) => (b.muted || []).includes(data.from))) return;
- who = boxes.map((b) => b.names && b.names[data.from]).find(Boolean) || null;
}
const emoji = !data.emoji || data.emoji === '+' ? '\u2764\ufe0f' : /^:[\w-]+:$/.test(data.emoji) ? data.emoji : data.emoji.slice(0, 8);
- const T = {
- payment: ['Payment received', data.amountSat ? `+${Number(data.amountSat).toLocaleString()} sats. Open coinos to see it.` : 'Open coinos to see it.'],
- dm: dmName ? [dmName, 'sent you a message.'] : ['New message', 'You have a new private message.'],
- chat: ['New chat activity', 'There are new messages in your communities.'],
- mention: [data.reply ? 'New reply to your post' : 'You were mentioned', data.text || 'Open coinos to see it.'],
- zap: ['Zap received', data.amountSat ? `+${Number(data.amountSat).toLocaleString()} sats. Open coinos to see it.` : 'Someone zapped you. Open coinos to see it.'],
- reaction: [who ? `${who} reacted ${emoji}` : `New reaction ${emoji}`, 'to your post. Open coinos to see it.'],
- };
- const [title, body] = T[data.reason] || T.chat;
+ const [title, body] = notifyText(data.reason, { amountSat: data.amountSat, name: dmName, reply: data.reply, emoji });
// a reply lands you in the Notifications list, where it is
const target = data.reason === 'mention' || data.reason === 'reaction' ? { url: './?open=notifs', view: 'notifs' } : { url: './' };
await show(title, {
@@ -254,10 +249,9 @@ self.addEventListener('push', (e) => {
// mint an invoice) — "an app wants to pay" would read as the opposite.
const incoming = data.event && data.event.kind === 21001;
diary(incoming ? 'waking the user: incoming payment' : 'waking the user: payment request');
- await show(incoming ? 'Incoming payment' : 'Payment request', {
- body: incoming
- ? 'Someone is trying to send you money. Open coinos so your wallet can receive it.'
- : 'An app is asking your wallet to pay. Open Coinos to approve.',
+ const [reqTitle, reqBody] = notifyText(incoming ? 'incoming' : 'spend');
+ await show(reqTitle, {
+ body: reqBody,
icon: 'icon-192.png', badge: 'badge-96.png',
tag: 'nwc-' + (data.servicePubkey || 'req'), renotify: false,
data: { url: './' },
diff --git a/tools/call-wake-test.js b/tools/call-wake-test.js
index 54c42ee..b0f64cc 100644
--- a/tools/call-wake-test.js
+++ b/tools/call-wake-test.js
@@ -1,7 +1,7 @@
// A call wakes a closed app: with Bob's coinos closed, Alice calls; the push
// the notifier would send (delivered here to Bob's service worker through
// Chrome's DevTools protocol) makes the worker fetch the offer's wrap, open
-// it with Bob's key and ring — "Alice Caller is calling" — and the tap that
+// it with Bob's key and ring — "Calling | Alice Caller" — and the tap that
// opens the app finds the offer kept for it: it rings there, Bob answers,
// they talk. A push for a stranger's call, or for something that isn't an
// offer, rings nothing. Plus the worker's check on its own (classifyCall).
@@ -152,7 +152,7 @@ try {
// the tap: the worker opens the app at ?open=call
await B.page.goto(`http://localhost:${PORT}/?open=call`, { waitUntil: 'domcontentloaded' });
const ns = await notifications(B.page);
- check('the worker rang: "Alice Caller is calling"', ns.some((n) => /^Alice Caller is calling \| Voice call/.test(n) && / \| call$/.test(n)), JSON.stringify(ns));
+ check('the worker rang: "Calling | Alice Caller"', ns.some((n) => /^Calling \| Alice Caller/.test(n) && / \| call$/.test(n)), JSON.stringify(ns));
check('the app the tap opened rings with the offer the worker kept', await waitFor(B.page, () => !!document.querySelector('.call-overlay .call-accept') && /Alice Caller/.test(document.querySelector('.call-overlay').innerText), 25000));
// Alice's candidates to Bob (his own 'answered here' copy, ~770 chars, isn't one)
const toBob = () => [...callWraps.values()].filter((w) => !wrapsBefore.has(w.id) && w.tags.some((x) => x[0] === 'p' && x[1] === B.pk) && w.content.length > 1000 && w.content.length < 1500).length;
diff --git a/tools/notif-spam-score.js b/tools/notif-spam-score.js
new file mode 100644
index 0000000..c9e48ba
--- /dev/null
+++ b/tools/notif-spam-score.js
@@ -0,0 +1,82 @@
+// Scores every notification the wallet can show against Chrome's on-device
+// "unwanted notification" model — the one that replaces a web notification
+// with "Possible spam" on Android when its title + body score above 90.
+//
+// Not part of the test suite: it launches a throwaway headful-less Chrome
+// (/usr/bin/google-chrome) that fetches the model from Google's optimization
+// guide on first use (~10 s, network), shows each line from src/notify-text.js
+// SAMPLES as a persistent notification on a local page, and reads the score
+// off chrome://histograms (SafeBrowsing.NotificationContentDetection
+// .SuspiciousScore, one new sample per notification). Desktop Chrome runs the
+// model too, flag or no flag; SystemNotifications is off so nothing reaches
+// the desktop's notification tray. Exit 1 if any line scores 90 or more.
+//
+// bun tools/notif-spam-score.js # SAMPLES from src/notify-text.js
+// bun tools/notif-spam-score.js "Title" "Body" ["Title" "Body" ...]
+import { spawn } from 'node:child_process';
+import { mkdtempSync, rmSync } from 'node:fs';
+import { tmpdir } from 'node:os';
+import { join } from 'node:path';
+import puppeteer from 'puppeteer-core';
+import { SAMPLES } from '../src/notify-text.js';
+
+const CHROME = process.env.CHROME || '/usr/bin/google-chrome';
+const PORT = 8766, DEBUG = 9445, THRESHOLD = 90;
+const argv = process.argv.slice(2);
+const items = argv.length ? argv.reduce((a, v, i) => (i % 2 ? a[a.length - 1].push(v) : a.push([v]), a), []) : SAMPLES;
+
+const server = Bun.serve({ port: PORT, hostname: '127.0.0.1', fetch(req) {
+ const p = new URL(req.url).pathname;
+ if (p === '/sw.js') return new Response("self.addEventListener('install', () => self.skipWaiting()); self.addEventListener('activate', (e) => e.waitUntil(self.clients.claim()));", { headers: { 'content-type': 'text/javascript' } });
+ return new Response(`<!doctype html><title>score</title><script>navigator.serviceWorker.register('./sw.js');
+ window.show = async (t, b) => { const r = await navigator.serviceWorker.ready; await r.showNotification(t, { body: b, tag: 's' + Date.now() + Math.random() }); };</script>score`,
+ { headers: { 'content-type': 'text/html' } });
+} });
+const profile = mkdtempSync(join(tmpdir(), 'notif-score-'));
+const chrome = spawn(CHROME, ['--headless=new', `--user-data-dir=${profile}`, `--remote-debugging-port=${DEBUG}`, '--no-first-run', '--password-store=basic',
+ '--enable-features=ShowWarningsForSuspiciousNotifications', '--disable-features=SystemNotifications', 'about:blank'], { stdio: 'ignore' });
+const cleanup = () => { try { chrome.kill(); } catch {} try { server.stop(true); } catch {} try { rmSync(profile, { recursive: true, force: true }); } catch {} };
+process.on('exit', cleanup);
+let browser;
+for (let i = 0; i < 40 && !browser; i++) {
+ await Bun.sleep(500);
+ browser = await puppeteer.connect({ browserURL: `http://localhost:${DEBUG}`, defaultViewport: null }).catch(() => null);
+}
+if (!browser) { console.error('could not reach the scoring Chrome'); process.exit(2); }
+await browser.defaultBrowserContext().overridePermissions(`http://127.0.0.1:${PORT}`, ['notifications']);
+const page = await browser.newPage();
+await page.goto(`http://127.0.0.1:${PORT}/`, { waitUntil: 'load' });
+await page.evaluate(() => navigator.serviceWorker.ready);
+const hist = await browser.newPage();
+async function counts() {
+ await hist.goto('chrome://histograms/SafeBrowsing.NotificationContentDetection.SuspiciousScore', { waitUntil: 'load' });
+ await Bun.sleep(250);
+ const txt = await hist.evaluate(() => document.body.innerText);
+ const m = {};
+ for (const line of txt.split('\n')) { const r = /^(\d+)\s+.*\((\d+) = /.exec(line); if (r) m[r[1]] = +r[2]; }
+ const t = /recorded (\d+) samples/.exec(txt);
+ return { m, total: t ? +t[1] : 0 };
+}
+// the model arrives on first use: warm up until one line scores
+let before = await counts();
+for (let i = 0; i < 12 && before.total === 0; i++) {
+ await page.evaluate(() => window.show('warm up', 'the model is still downloading'));
+ await Bun.sleep(5000);
+ before = await counts();
+}
+if (before.total === 0) { console.error('the model never scored anything (offline? no optimization-guide access?)'); process.exit(2); }
+let worst = 0;
+for (const [title, body] of items) {
+ await page.evaluate((t, b) => window.show(t, b), title, body);
+ let after, tries = 0;
+ do { await Bun.sleep(600); after = await counts(); } while (after.total === before.total && ++tries < 25);
+ const d = after.total - before.total;
+ const bucket = Object.keys(after.m).filter((k) => (after.m[k] || 0) > (before.m[k] || 0)).join('+');
+ const score = d === 1 ? Number(bucket) : NaN;
+ worst = Math.max(worst, score || 0);
+ console.log(`${(d === 1 ? String(score) : d === 0 ? '??' : 'ambiguous').padStart(9)} | ${title} | ${body}`);
+ before = after;
+}
+await page.close(); await hist.close(); browser.disconnect();
+console.log(worst >= THRESHOLD ? `\nFAIL: a line scored ${worst} (warning at >${THRESHOLD - 1})` : `\nok: every line under ${THRESHOLD}, worst ${worst}`);
+process.exit(worst >= THRESHOLD ? 1 : 0);
diff --git a/tools/sw-push-quota.test.js b/tools/sw-push-quota.test.js
index cf4a7bf..544c72e 100644
--- a/tools/sw-push-quota.test.js
+++ b/tools/sw-push-quota.test.js
@@ -85,5 +85,5 @@ test('elsewhere: quiet stays quiet', async () => {
expect(asked).toBe(0); // the open (if hidden) window answers on Android
windows = [];
respond = async () => false;
- expect(await push(nwc)).toEqual(['Payment request']);
+ expect(await push(nwc)).toEqual(['Spend request']);
});