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-rw-r--r--src/marmot-client.js69
-rw-r--r--src/marmot.js15
-rw-r--r--tools/marmot-multidevice-test.js117
3 files changed, 184 insertions, 17 deletions
diff --git a/src/marmot-client.js b/src/marmot-client.js
index d63cb04..4a79b21 100644
--- a/src/marmot-client.js
+++ b/src/marmot-client.js
@@ -30,8 +30,8 @@ const REACH_TTL = 10 * 60_000;
const now = () => Math.floor(Date.now() / 1000);
const sleep = (ms) => new Promise((r) => setTimeout(r, ms));
-export function marmotClient({ scope, pubkey, identity, on, relays = GROUP_RELAYS, subClosed }) {
- const store = marmotStore(scope);
+// `store` is injectable for tests outside a browser (no IndexedDB there).
+export function marmotClient({ scope, pubkey, identity, on, relays = GROUP_RELAYS, subClosed, store = marmotStore(scope) }) {
const groups = new Map(); // mls group id (hex) -> record
const subs = new Map(); // route id -> { unsub, gid }
const reach = new Map(); // pubkey -> { at, p }
@@ -150,8 +150,11 @@ export function marmotClient({ scope, pubkey, identity, on, relays = GROUP_RELAY
return true;
}
- // Somebody else's KeyPackage, or null when they cannot be invited.
- function lookup(pk) {
+ // Somebody's KeyPackages: one per device (a slot is one installation), the
+ // best first, at most ten. An invitation adds every one of them, so a person
+ // with a phone and a laptop gets the group on both — the rule Marmot's
+ // multi-device design settles on. `lookup` is the best one, or null.
+ function lookupAll(pk) {
const hit = reach.get(pk);
if (hit && Date.now() - hit.at < REACH_TTL) return hit.p;
const p = (async () => {
@@ -159,11 +162,12 @@ export function marmotClient({ scope, pubkey, identity, on, relays = GROUP_RELAY
const newest = lists.sort((a, b) => b.created_at - a.created_at)[0];
const where = [...new Set([...(newest ? writeRelays(newest).slice(0, 5) : []), ...PROFILE_RELAYS])];
const evs = await queryOn(where, { kinds: [M.KIND.KEY_PACKAGE], authors: [pk] }, 2500);
- return M.pickKeyPackage(evs.map((e) => M.readKeyPackageEvent(e)).filter(Boolean));
- })().catch(() => null);
+ return M.pickKeyPackages(evs.map((e) => M.readKeyPackageEvent(e)).filter(Boolean));
+ })().catch(() => []);
reach.set(pk, { at: Date.now(), p });
return p;
}
+ const lookup = (pk) => lookupAll(pk).then((all) => all[0] || null);
// ---- relay traffic ----
@@ -250,8 +254,8 @@ export function marmotClient({ scope, pubkey, identity, on, relays = GROUP_RELAY
return p;
}
- async function deliverWelcome(g, welcome, cands) {
- const s = await signer({ interactive: true });
+ async function deliverWelcome(g, welcome, cands, { interactive = true } = {}) {
+ const s = await signer({ interactive });
if (!s) throw new Error('no signer');
const where = routeRelays(g);
for (const c of cands) {
@@ -264,10 +268,47 @@ export function marmotClient({ scope, pubkey, identity, on, relays = GROUP_RELAY
// ---- what the app can do ----
async function candidates(pks) {
- const cands = await Promise.all(pks.map(lookup));
- const missing = pks.filter((_, i) => !cands[i]);
+ const lists = await Promise.all(pks.map(lookupAll));
+ const missing = pks.filter((_, i) => !lists[i].length);
if (missing.length) { const e = new Error('not reachable'); e.missing = missing; throw e; }
- return cands;
+ return lists.flat();
+ }
+
+ // Our account's other devices. Each installation publishes its own
+ // KeyPackage under its own slot; where this account is an admin, a device
+ // that finds a sibling's fresh package not yet in a group adds it, and the
+ // Welcome reaches the sibling through our own inbox. The same-account rule
+ // of Marmot's multi-device direction, applied to the groups we already have
+ // (a non-admin cannot add anyone, so those groups wait for the spec).
+ let siblingTimer = 0, siblingBusy = false;
+ async function siblingAdds() {
+ if (stopped || !dev || siblingBusy) return;
+ siblingBusy = true;
+ try {
+ const s = await signer();
+ if (!s) return;
+ const mine = await lookupAll(pubkey);
+ const own = new Set((dev.kps || []).map((k) => k.ref));
+ const others = mine.filter((c) => c.slot !== dev.slot && !own.has(c.ref));
+ if (!others.length) return;
+ for (const g of [...groups.values()]) {
+ if (stopped || g.removed || g.leaving || g.pending || g.fresh || !M.isAdmin(g)) continue;
+ const have = new Set(M.leafKeys(g.tip));
+ const cands = others.filter((c) => !have.has(c.sigKey) && M.fits(g.tip, c));
+ if (!cands.length || M.leafKeys(g.tip).length + cands.length > 64) continue;
+ try {
+ const p = await commit(g, M.invite(cands));
+ await deliverWelcome(g, p.welcome, cands, { interactive: false });
+ dlog('marmot: sibling add', g.id.slice(0, 8), cands.length);
+ } catch (e) { dlog('marmot: sibling add', e); }
+ await sleep(1500);
+ }
+ } catch (e) { dlog('marmot: siblings', e); }
+ finally { siblingBusy = false; }
+ }
+ function scheduleSiblings(delay = 25_000) {
+ clearTimeout(siblingTimer);
+ siblingTimer = setTimeout(() => { siblingAdds().then(() => { if (!stopped) scheduleSiblings(6 * 3600_000); }); }, delay);
}
// A direct chat (no name, both sides admins) or a named group.
@@ -355,6 +396,7 @@ export function marmotClient({ scope, pubkey, identity, on, relays = GROUP_RELAY
const g = groups.get(j.g.id);
if (g && !stopped && !g.removed && !g.pending) commit(g, []).catch((e) => dlog('marmot: self-update', e));
}, 4000 + Math.random() * 6000);
+ scheduleSiblings(40_000);
return j.g;
}
@@ -378,6 +420,7 @@ export function marmotClient({ scope, pubkey, identity, on, relays = GROUP_RELAY
}
}
emit('loaded', null);
+ scheduleSiblings();
}
function resubscribe() {
@@ -390,14 +433,14 @@ export function marmotClient({ scope, pubkey, identity, on, relays = GROUP_RELAY
function stop() {
stopped = true;
rebuilding = true;
- clearTimeout(rotateTimer);
+ clearTimeout(rotateTimer); clearTimeout(siblingTimer);
for (const s of subs.values()) { try { s.unsub(); } catch {} }
subs.clear();
flush();
}
return {
- pubkey, groups, load, start, stop, resubscribe, ready, announce, lookup, welcome, accept,
+ pubkey, groups, load, start, stop, resubscribe, ready, announce, lookup, lookupAll, siblingAdds, welcome, accept,
create, send, add, kick, rename, leave, forget,
event: (kind, content, tags) => M.appEvent(pubkey, kind, content, tags),
// attachments: seal for the epoch a message is about to go out in, and
diff --git a/src/marmot.js b/src/marmot.js
index 7dd55d6..f6153a0 100644
--- a/src/marmot.js
+++ b/src/marmot.js
@@ -382,6 +382,7 @@ export function readKeyPackageEvent(ev, at = now()) {
return {
id: ev.id, pubkey: ev.pubkey, slot: d, ref: i, created_at: ev.created_at, lastResort,
keyPackage: kp.keyPackage,
+ sigKey: bytesToHex(kp.leaf.signatureKey), // which device: the leaf it would occupy
components: idList.dec(comp(kp.leaf.extensions, COMP.APP_COMPONENTS)),
extensions: caps.extensions, proposals: caps.proposals,
client: ev.tags.find((t) => t[0] === "client")?.[1] || "",
@@ -389,17 +390,23 @@ export function readKeyPackageEvent(ev, at = now()) {
} catch { return null; }
}
-// One candidate per (author, slot) — the newest, lower id on a tie — then
-// single-use packages before last-resort ones, fresher first, lower ref last.
-export function pickKeyPackage(candidates) {
+// One candidate per (author, slot) — the newest, lower id on a tie: a slot
+// is one installation, so this is one package per device. Ordered single-use
+// before last-resort, fresher first, lower ref last; at most `max` of them
+// (Marmot's multi-device direction caps an account at ten leaves).
+export const MAX_DEVICES = 10;
+export function pickKeyPackages(candidates, max = MAX_DEVICES) {
const slots = new Map();
for (const c of candidates) {
const k = c.pubkey + c.slot, cur = slots.get(k);
if (!cur || c.created_at > cur.created_at || (c.created_at === cur.created_at && c.id < cur.id)) slots.set(k, c);
}
return [...slots.values()].sort((a, b) =>
- (a.lastResort - b.lastResort) || (b.created_at - a.created_at) || (a.ref < b.ref ? -1 : 1))[0] || null;
+ (a.lastResort - b.lastResort) || (b.created_at - a.created_at) || (a.ref < b.ref ? -1 : 1)).slice(0, max);
}
+export const pickKeyPackage = (candidates) => pickKeyPackages(candidates, 1)[0] || null;
+// the signature keys of every leaf in a state: which devices are already in
+export const leafKeys = (state) => mls.members(state).map((m) => bytesToHex(m.signatureKey));
// Can this KeyPackage join a group in this state?
export function fits(state, cand) {
diff --git a/tools/marmot-multidevice-test.js b/tools/marmot-multidevice-test.js
new file mode 100644
index 0000000..264fbcb
--- /dev/null
+++ b/tools/marmot-multidevice-test.js
@@ -0,0 +1,117 @@
+// Multi-device White Noise groups: one account on two coinos devices, against
+// the Rust reference (MDK's `wn`), on public relays with throwaway identities.
+//
+// bun tools/marmot-multidevice-test.js
+//
+// Needs `wn` (github.com/marmot-protocol/mdk, crates/cli) on PATH or at WN,
+// with its daemon on public relays:
+// export WN_HOME=… WN_SECRET_STORE=file WN_SOCKET=/tmp/wn.sock
+// wn daemon start --discovery-relays wss://nos.lol,wss://relay.primal.net \
+// --default-account-relays wss://nos.lol,wss://relay.primal.net
+//
+// Covers: both devices publish KeyPackages (one slot each); a wn invitation
+// reaches whichever device(s) wn adds; a group founded on device A adds
+// device B by itself (the admin's sibling add) through our own inbox; wn
+// reads and writes a group holding two leaves of one npub; both devices read.
+import { spawnSync } from 'node:child_process';
+import { finalizeEvent, generateSecretKey, getPublicKey } from 'nostr-tools/pure';
+import { npubEncode } from 'nostr-tools/nip19';
+// MD_DEBUG=1 shows the client's dlog lines (sibling adds and why they skip)
+if (process.env.MD_DEBUG && typeof localStorage === 'undefined') {
+ globalThis.localStorage = { getItem: (k) => (k === 'coinos-debug' ? '1' : null), setItem() {}, removeItem() {} };
+}
+const { marmotClient } = await import('../src/marmot-client.js');
+const { subscribeOn, publishOn } = await import('../src/nostr.js');
+const { unwrapDM } = await import('../src/dm.js');
+
+const WN = process.env.WN || 'wn';
+const RELAYS = (process.env.RELAYS || 'wss://relay.coinos.io,wss://nos.lol,wss://relay.primal.net').split(',');
+const sleep = (ms) => new Promise((r) => setTimeout(r, ms));
+let failed = 0;
+const ok = (cond, label, extra) => { if (cond) console.log(' ok ' + label); else { failed++; console.log(' FAIL ' + label + (extra ? ' — ' + extra : '')); } };
+function wn(args, { account } = {}) {
+ const r = spawnSync(WN, ['--json', ...(account ? ['--account', account] : []), ...args], { encoding: 'utf8', timeout: 60_000 });
+ const line = (r.stdout || '').trim().split('\n').filter(Boolean).at(-1) || '';
+ try { const j = JSON.parse(line); return j.ok ? j.result : { error: j.error }; } catch { return { error: { message: (r.stderr || r.stdout || 'no output').trim().slice(0, 300) } }; }
+}
+const waitFor = async (fn, label, ms = 45_000) => { const t = Date.now(); while (Date.now() - t < ms) { const v = await fn(); if (v) return v; await sleep(1500); } console.log(' … timed out waiting for ' + label); return null; };
+const memStore = () => { const m = new Map(); return { all: async () => new Map(m), put: async (k, v) => { m.set(k, structuredClone(v)); }, del: async (k) => { m.delete(k); }, wipe: async () => m.clear() }; };
+
+const who = wn(['whoami']);
+if (who.error) { console.log('SKIP: wn daemon not reachable (' + who.error.message + ')'); process.exit(0); }
+
+// one account, two devices
+const sk = generateSecretKey(), pk = getPublicKey(sk);
+const identity = async () => ({ pubkey: pk, signer: sk });
+const log = { A: [], B: [] };
+const mk = (name) => marmotClient({
+ scope: 'test-' + name, pubkey: pk, identity, relays: RELAYS, store: memStore(),
+ on: (type, g, data) => { if (type === 'message') log[name].push(data); if (type === 'joined') console.log(` [${name}] joined ${g.id.slice(0, 8)} (invited by ${(g.inviter || '').slice(0, 8)})`); },
+});
+const A = mk('A'), B = mk('B');
+// the account's relay lists, so wn can route to us (the sync feature publishes these for a real wallet)
+for (const kind of [10002, 10050]) await publishOn(RELAYS, finalizeEvent({ kind, created_at: Math.floor(Date.now() / 1000), tags: RELAYS.map((r) => [kind === 10002 ? 'r' : 'relay', r]), content: '' }, sk));
+// the DM inbox: every Welcome for our npub goes to both devices, as the app's inbox does
+// no `since`: a gift wrap's created_at is randomized into the past (NIP-59)
+subscribeOn(RELAYS, { kinds: [1059], '#p': [pk] }, async (ev) => {
+ let got; try { got = await unwrapDM(ev, sk); } catch { return; }
+ const rumor = got && got.rumor;
+ if (!rumor || rumor.kind !== 444) return;
+ for (const c of [A, B]) c.welcome(rumor).catch(() => {});
+});
+
+try {
+ await A.start(); await B.start();
+ ok(await A.ready({ interactive: true }), 'device A published a KeyPackage');
+ ok(await B.ready({ interactive: true }), 'device B published a KeyPackage');
+ await sleep(2000);
+ const mine = await A.lookupAll(pk);
+ ok(mine.length === 2 && new Set(mine.map((c) => c.slot)).size === 2, 'the account shows two devices (two slots)', JSON.stringify(mine.map((c) => c.slot.slice(0, 8))));
+
+ // ---- 1. wn invites the account: which devices get in? ----
+ const alice = wn(['create-identity']).account_id;
+ const check = wn(['keys', 'check', pk]);
+ ok(check && !check.error, 'wn finds our relay lists + KeyPackages', JSON.stringify(check).slice(0, 200));
+ const made = wn(['groups', 'create', 'multidev', pk], { account: alice });
+ ok(!made.error, 'wn created a group with our npub', JSON.stringify(made.error || '').slice(0, 200));
+ const wnGroup = made.group_id || made.group?.group_id || made.group_id_hex;
+ const joinedCount = await waitFor(async () => { const n = [A, B].filter((c) => [...c.groups.values()].some((g) => !g.removed)).length; return n ? n : null; }, 'a device joins the wn group', 40_000);
+ await sleep(6000); // a second Welcome may follow
+ const inWn = [A, B].filter((c) => [...c.groups.values()].some((g) => !g.removed)).map((c) => (c === A ? 'A' : 'B'));
+ console.log(' wn invited devices:', inWn.join(',') || 'none', '(MDK adds', inWn.length, 'of our 2 KeyPackages)');
+ ok(inWn.length >= 1, 'at least one device joined the wn group');
+
+ // ---- 2. our group: device A founds it, invites wn, and adds device B on its own ----
+ const g = await A.create({ name: 'two devices', members: [alice] }) // account_id is the hex pubkey.catch((e) => { console.log(' create failed:', e.message); return null; });
+ ok(!!g, 'device A founded a group with the wn account');
+ if (g) {
+ await A.siblingAdds();
+ const gB = await waitFor(async () => [...B.groups.values()].find((x) => x.id === g.id && !x.removed) || null, 'device B joins through the sibling add');
+ ok(!!gB, 'device B joined device A\'s group from our own inbox');
+ if (gB) {
+ ok(gB.inviter === pk, 'the Welcome came from our own account', gB.inviter && gB.inviter.slice(0, 8));
+ B.accept(gB);
+ ok(A.accounts(g).length === 2 && A.accounts(g).includes(pk), 'two accounts, three leaves', `accounts=${A.accounts(g).length}`);
+ }
+ // wn joins and must still work with two leaves of one npub in the tree
+ const seen = await waitFor(async () => JSON.stringify(wn(['chats', 'list'], { account: alice })).includes(g.id) || JSON.stringify(wn(['groups', 'invites'], { account: alice })).includes(g.id) || null, 'wn sees our group');
+ ok(!!seen, 'wn received the Welcome to our group');
+ wn(['groups', 'accept', g.id], { account: alice });
+ await sleep(3000);
+ const show = wn(['groups', 'show', g.id], { account: alice });
+ console.log(' wn groups show:', JSON.stringify(show).slice(0, 400));
+ const posted = wn(['messages', 'send', g.id, 'hello both devices'], { account: alice });
+ ok(!posted.error, 'wn sent into the three-leaf group', JSON.stringify(posted.error || ''));
+ ok(!!await waitFor(async () => log.A.some((m) => m.content === 'hello both devices') || null, 'A reads wn'), 'device A reads wn');
+ ok(!!await waitFor(async () => log.B.some((m) => m.content === 'hello both devices') || null, 'B reads wn'), 'device B reads wn');
+ if (gB) {
+ ok(await B.send(gB, B.event(9, 'from device B', [])), 'device B sent');
+ ok(!!await waitFor(async () => JSON.stringify(wn(['messages', 'list', g.id, '--limit', '20'], { account: alice })).includes('from device B') || null, 'wn reads B'), 'wn reads device B');
+ ok(!!await waitFor(async () => log.A.some((m) => m.content === 'from device B') || null, 'A reads B'), 'device A reads device B');
+ }
+ ok(await A.send(g, A.event(9, 'from device A', [])), 'device A sent');
+ ok(!!await waitFor(async () => JSON.stringify(wn(['messages', 'list', g.id, '--limit', '20'], { account: alice })).includes('from device A') || null, 'wn reads A'), 'wn reads device A');
+ }
+ console.log(failed ? `\n${failed} FAILED` : '\nMULTI-DEVICE OK');
+} catch (e) { console.log('\nCRASH', e.stack || e.message); failed++; }
+finally { A.stop(); B.stop(); await sleep(500); process.exit(failed ? 1 : 0); }