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cinny/src/app/state/plaintextCaches.test.ts
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fix(logout): no draft or search opt-in left behind after logout (#319, #296)
- #319: logout wiped the drafts, then reloaded, and the reload's pagehide
  made RoomInput flush the open composer's (decrypted) draft straight back
  to localStorage. clearPlaintextCaches now sets a module flag and
  persistDraft stops writing once it's set (resets with the new page).
- #296: the device-wide encrypted-search opt-in (searchCacheEnabled)
  survived logout, so the next account started indexing decrypted text
  without opting in. It's now cleared, along with the SDK's per-user
  filter key.

Verified headless with a throwaway account (search opt-in on, "SECRET
half-typed reply" in the composer, Settings → Log out): before, the draft
and searchCacheEnabled=true remained; now neither does. Unit test added.

Fixes #319
Fixes #296

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_017PCb59uY3UKqDqt7B6hzd5
2026-10-16 22:12:19 -04:00

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import { test } from 'node:test';
import assert from 'node:assert/strict';
// These modules touch localStorage at import/runtime. Provide a minimal mock
// that records removed keys, then import dynamically (a static import would
// hoist above the mock).
const removed: string[] = [];
const store = new Map<string, string>();
// A Proxy so `Object.keys(localStorage)` (used by the prefix sweeps) sees the
// stored keys, like the real Storage object.
const api = {
getItem: (k: string) => store.get(k) ?? null,
setItem: (k: string, v: string) => {
store.set(k, v);
},
removeItem: (k: string) => {
removed.push(k);
store.delete(k);
},
};
(globalThis as { localStorage?: unknown }).localStorage = new Proxy(api, {
ownKeys: () => Array.from(store.keys()),
getOwnPropertyDescriptor: (target, key) =>
typeof key === 'string' && store.has(key)
? { value: store.get(key), enumerable: true, configurable: true, writable: true }
: Object.getOwnPropertyDescriptor(target, key),
});
const { clearPlaintextCaches, plaintextCachesWiped } = await import('./plaintextCaches');
test('clearPlaintextCaches removes every plaintext/PII localStorage key', () => {
store.clear();
store.set('cinny_translation_cache_v1', '[]');
store.set('cinny_scheduled_messages_v1', '{}');
store.set('cinny_recent_searches_v1', '[]');
store.set('cinny_recent_forward_targets_v1', '[]');
store.set('cinny_recent_gifs_v1', '[]');
store.set('cinny_recent_stickers_v1', '[]');
store.set('lotus_outbox_v1', '{"userId":"@me:server","entries":[]}');
removed.length = 0;
clearPlaintextCaches();
for (const key of [
'cinny_translation_cache_v1',
'cinny_scheduled_messages_v1',
'cinny_recent_searches_v1',
'cinny_recent_forward_targets_v1',
'cinny_recent_gifs_v1',
'cinny_recent_stickers_v1',
'lotus_outbox_v1', // [Gitea #112] unsent message content
]) {
assert.ok(removed.includes(key), `${key} cleared`);
}
assert.equal(store.size, 0, 'all keys gone from store');
});
test('clearPlaintextCaches clears the per-user nav-path store only when given a userId', () => {
store.clear();
store.set('navToActivePath@me:server', '{}');
removed.length = 0;
clearPlaintextCaches(); // no userId -> nav path untouched
assert.ok(!removed.includes('navToActivePath@me:server'), 'nav path kept without userId');
clearPlaintextCaches('@me:server');
assert.ok(removed.includes('navToActivePath@me:server'), 'nav path cleared with userId');
});
test('clearPlaintextCaches wipes drafts (#41) and the status message (#204) but not session keys', () => {
store.clear();
store.set('draft-msg-!room:server', '{"body":"unsent"}');
store.set('lotus-status-msg-@me:server', 'at the dentist');
store.set('lotus-status-expiry-@me:server', '123');
store.set('cinny_session', '{"accessToken":"x"}');
removed.length = 0;
clearPlaintextCaches('@me:server');
assert.ok(removed.includes('draft-msg-!room:server'), 'draft cleared');
assert.ok(removed.includes('lotus-status-msg-@me:server'), 'status message cleared');
assert.ok(removed.includes('lotus-status-expiry-@me:server'), 'status expiry cleared');
assert.ok(!removed.includes('cinny_session'), 'session key not this module’s concern');
assert.ok(store.has('cinny_session'));
});
test('clearPlaintextCaches removes the call-volume list and the settings-sync stamp (#347)', () => {
store.clear();
store.set('lotus-per-user-volume', '{"@bob:server":0.3}');
store.set('settings-sync-meta:@me:server', '{"lastSyncedAt":1}');
store.set('settings', '{}');
clearPlaintextCaches('@me:server');
assert.equal(store.has('lotus-per-user-volume'), false);
assert.equal(store.has('settings-sync-meta:@me:server'), false);
assert.equal(store.has('settings'), true, 'device preferences are kept');
});
test('clearPlaintextCaches clears the encrypted-search opt-in and flags the wipe (#296, #319)', () => {
store.clear();
store.set('searchCacheEnabled', 'true');
store.set('mxjssdk_memory_filter_FILTER_SYNC_@me:server', '0');
clearPlaintextCaches('@me:server');
assert.equal(store.has('searchCacheEnabled'), false);
assert.equal(store.has('mxjssdk_memory_filter_FILTER_SYNC_@me:server'), false);
assert.equal(plaintextCachesWiped(), true, 'draft writes stop until the page reloads');
});