fix(copy): soundboard room/space wording, deafen Escape hint, pin typo; keep Reddit context= (#279, #280)

#279: Room Settings → Soundboard said clips are "inherited by every room
under this space" for plain rooms too; the wording now follows
room.isSpaceRoom(). The Push to Deafen description only mentions Escape
while rebinding. "can pin a messages" → "can pin a message".

#280: the tracking stripper removed Reddit's context=, which is what
makes a comment permalink show its parent comments. Only share_id and
rdt are stripped now.

Fixes #279
Fixes #280

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_017PCb59uY3UKqDqt7B6hzd5

src/app/features/common-settings/soundboard/Soundboard.tsx

@@ -38,10 +38,14 @@ export function Soundboard({ requestClose }: SoundboardProps) {
           <PageContent>
             <Box direction="Column" gap="700">
               <Box direction="Column" gap="200">
-                <Text size="L400">This room / space (shared)</Text>
+                <Text size="L400">
+                  {room?.isSpaceRoom() ? 'This space (shared)' : 'This room (shared)'}
+                </Text>
                 <Text size="T200" priority="300">
-                  Clips here are shared with everyone, and inherited by every room under this space
-                  — just like emoji/sticker packs. Only members with permission can edit.
+                  {/* [Gitea #279] Only a space's clips are inherited by rooms under it. */}
+                  {room?.isSpaceRoom()
+                    ? 'Clips here are shared with everyone, and inherited by every room under this space — just like emoji/sticker packs. Only members with permission can edit.'
+                    : 'Clips here are shared with everyone in this room — just like emoji/sticker packs. Only members with permission can edit.'}
                 </Text>
                 {room && <RoomSoundboardPack room={room} stateKey="" />}
               </Box>

src/app/features/room/room-pin-menu/RoomPinMenu.tsx

@@ -531,7 +531,7 @@ export const RoomPinMenu = forwardRef<HTMLDivElement, RoomPinMenuProps>(
                         No Pinned Messages
                       </Text>
                       <Text size="T400" align="Center">
-                        Users with sufficient power level can pin a messages from its context menu.
+                        Users with sufficient power level can pin a message from its context menu.
                       </Text>
                     </Box>
                   </Box>

src/app/features/room/widgets/widgetUtils.test.ts

@@ -106,3 +106,19 @@ test('classifyWidgetCapabilities: reading protected state is fine, changing unpr
 test('loadWidgetConsent tolerates missing storage', () => {
   assert.equal(loadWidgetConsent('!r:x', 'w', 'https://w.example'), undefined);
 });
+
+test('[#266] space structure, call membership and Lotus room policy can never be granted', () => {
+  const { auto, ask } = classifyWidgetCapabilities(
+    [
+      'm.space.child',
+      'm.space.parent',
+      'org.matrix.msc3401.call',
+      'org.matrix.msc3401.call.member',
+      'm.call.member',
+      'io.lotus.voice_limit',
+      'io.lotus.room_quality',
+    ].map((t) => `org.matrix.msc2762.send.state_event:${t}`),
+  );
+  assert.equal(auto.size, 0);
+  assert.deepEqual(ask, []);
+});

src/app/features/room/widgets/widgetUtils.ts

@@ -67,6 +67,16 @@ export const PROTECTED_STATE_TYPES: ReadonlySet<string> = new Set([
   'm.room.third_party_invite',
   'im.vector.modular.widgets',
   'm.widget',
+  // [Gitea #266] Space structure, call membership and Lotus room policy: a
+  // widget could restructure a space, fake call membership or lift the
+  // voice-channel limit, so these can't be granted even with consent.
+  'm.space.child',
+  'm.space.parent',
+  'org.matrix.msc3401.call',
+  'org.matrix.msc3401.call.member',
+  'm.call.member',
+  'io.lotus.voice_limit',
+  'io.lotus.room_quality',
 ]);
 
 export type WidgetPermissionRequest = {
@@ -137,8 +147,11 @@ export const classifyWidgetCapabilities = (
  */
 export type StoredWidgetConsent = { url: string; allowed: Capability[]; denied: Capability[] };
 
+// [Gitea #266] Swept on logout by clearPlaintextCaches, so one account's
+// approvals never apply to the next account on the same device.
+export const WIDGET_CONSENT_PREFIX = 'lotus.widgetConsent.';
 export const widgetConsentKey = (roomId: string, widgetId: string): string =>
-  `lotus.widgetConsent.${roomId}.${widgetId}`;
+  `${WIDGET_CONSENT_PREFIX}${roomId}.${widgetId}`;
 
 export const loadWidgetConsent = (
   roomId: string,

src/app/features/settings/general/General.tsx

@@ -2089,7 +2089,12 @@ function Calls() {
           description={
             deafenBind.error ??
             (deafenHotkey
-              ? `Press ${keyLabel(deafenKey)} during a call to mute your speakers. Press Escape to cancel rebind.${
+              ? `${
+                  // [Gitea #279] The Escape hint only applies while rebinding.
+                  deafenBind.listening
+                    ? 'Press a key to bind it, or Escape to cancel.'
+                    : `Press ${keyLabel(deafenKey)} during a call to mute your speakers.`
+                }${
                   !isSafeGlobalToggleKey(deafenKey)
                     ? ` A letter, digit or Space only works in the call view — on a chat screen typing takes priority${
                         isTauriEnv() && globalCallHotkeys ? ' and other apps are never watched' : ''

src/app/pages/client/ClientRoot.tsx

@@ -33,6 +33,8 @@ import {
 } from '../../../client/initMatrix';
 import { deleteSearchCacheDatabase } from '../../utils/searchCache';
 import { clearPlaintextCaches } from '../../state/plaintextCaches';
+import { clearSoundboardClipCache } from '../../utils/soundboardClips';
+import { clearSharedPayload } from '../../../swShare';
 import { SplashScreen } from '../../components/splash-screen';
 import { ServerConfigsLoader } from '../../components/ServerConfigsLoader';
 import { CapabilitiesProvider } from '../../hooks/useCapabilities';
@@ -172,6 +174,10 @@ const useLogoutListener = (mx?: MatrixClient) => {
       // (translation, scheduled messages, recent searches/forwards/gifs/
       // stickers, nav paths) — wipe them on server-forced logout too.
       clearPlaintextCaches(mx?.getUserId() ?? undefined);
+      // [Gitea #57] As on manual logout: no decrypted clip bytes via blob: URLs.
+      clearSoundboardClipCache();
+      // [Gitea #267] As on manual logout: drop files stashed by the share target.
+      await clearSharedPayload().catch(() => undefined);
       // Remove only the session credential keys — NOT settings, drafts, and
       // other preferences (N98). The SDK's IndexedDB stores are cleared above;
       // window.localStorage.clear() is reserved for the explicit reset path.

src/app/pages/client/share/Share.tsx

@@ -145,6 +145,11 @@ export function Share() {
               <Box direction="Column" gap="400">
                 <Box direction="Column" gap="200">
                   <Text size="L400">Shared</Text>
+                  {/* [Gitea #267] Not everything that arrives here came from the
+                      user's share sheet; say so before they pick a room. */}
+                  <Text size="T200" priority="300">
+                    This came from another app or website. Check it before you send it.
+                  </Text>
                   {shared.files.map((f) => (
                     <Box key={f.name} alignItems="Center" gap="200">
                       <Icon

src/app/state/plaintextCaches.test.ts

@@ -26,7 +26,10 @@ const api = {
       : Object.getOwnPropertyDescriptor(target, key),
 });
 
-const { clearPlaintextCaches, plaintextCachesWiped } = await import('./plaintextCaches');
+const { clearPlaintextCaches, plaintextCachesWiped, WIDGET_CONSENT_KEY_PREFIX } =
+  await import('./plaintextCaches');
+const { WIDGET_CONSENT_PREFIX, widgetConsentKey } =
+  await import('../features/room/widgets/widgetUtils');
 
 test('clearPlaintextCaches removes every plaintext/PII localStorage key', () => {
   store.clear();
@@ -104,3 +107,17 @@ test('clearPlaintextCaches clears the encrypted-search opt-in and flags the wipe
   assert.equal(store.has('mxjssdk_memory_filter_FILTER_SYNC_@me:server'), false);
   assert.equal(plaintextCachesWiped(), true, 'draft writes stop until the page reloads');
 });
+
+test('[#266] clearPlaintextCaches sweeps remembered widget approvals', () => {
+  assert.equal(WIDGET_CONSENT_KEY_PREFIX, WIDGET_CONSENT_PREFIX, 'prefix kept in sync');
+  store.clear();
+  const consent = widgetConsentKey('!room:server', 'widget-1');
+  store.set(consent, '{"url":"https://pad.example","allowed":[],"denied":[]}');
+  store.set('lotus.widgetConsentNotAKey', 'kept');
+  removed.length = 0;
+
+  clearPlaintextCaches('@me:server');
+
+  assert.ok(removed.includes(consent), 'consent cleared');
+  assert.ok(store.has('lotus.widgetConsentNotAKey'), 'unrelated key kept');
+});

src/app/state/plaintextCaches.ts

@@ -139,6 +139,31 @@ const clearAccountScopedFlags = (userId?: string): void => {
   });
 };
 
+/**
+ * [Gitea #266] Remembered widget approvals (`lotus.widgetConsent.<room>.<widget>`,
+ * widgetUtils.ts) would otherwise apply silently to the next account on this
+ * device, and their keys list the previous account's rooms. Kept as a string
+ * here so logout doesn't pull the widget code into the entry chunk; a test
+ * checks it matches WIDGET_CONSENT_PREFIX.
+ */
+export const WIDGET_CONSENT_KEY_PREFIX = 'lotus.widgetConsent.';
+const clearWidgetConsents = (): void => {
+  let keys: string[];
+  try {
+    keys = Object.keys(localStorage);
+  } catch {
+    return;
+  }
+  keys.forEach((key) => {
+    if (!key.startsWith(WIDGET_CONSENT_KEY_PREFIX)) return;
+    try {
+      localStorage.removeItem(key);
+    } catch {
+      // best-effort
+    }
+  });
+};
+
 export const clearPlaintextCaches = (userId?: string): void => {
   wiped = true;
   clearTranslationCache();
@@ -153,5 +178,6 @@ export const clearPlaintextCaches = (userId?: string): void => {
   clearStatusMessage();
   clearCallVolumesAndSyncMeta(userId);
   clearAccountScopedFlags(userId);
+  clearWidgetConsents();
   if (userId) clearNavToActivePathStore(userId);
 };

src/app/utils/urlTracking.test.ts

@@ -109,3 +109,10 @@ describe('stripTrackingParamsInHtml', () => {
     assert.equal(stripTrackingParamsInHtml(html), html);
   });
 });
+
+it('[#280] Reddit keeps context= (it shows the parent comments) but drops share_id', () => {
+  assert.equal(
+    stripTrackingParams('https://www.reddit.com/r/x/comments/abc/def/xyz/?context=3&share_id=1'),
+    'https://www.reddit.com/r/x/comments/abc/def/xyz/?context=3',
+  );
+});

src/app/utils/urlTracking.ts

@@ -103,7 +103,9 @@ const HOST_PARAMS: Array<{ hosts: string[]; params: string[]; prefixes?: string[
   },
   {
     hosts: ['reddit.com'],
-    params: ['share_id', 'rdt', 'context'],
+    // [Gitea #280] Not `context`: on a comment permalink, ?context=N shows the
+    // N parent comments, i.e. the conversation the sender meant to share.
+    params: ['share_id', 'rdt'],
   },
   {
     hosts: ['tiktok.com'],

src/client/initMatrix.ts

@@ -9,6 +9,7 @@ import { pushSessionToSW } from '../sw-session';
 import { deleteSearchCacheDatabase, shouldRunBootCleanup } from '../app/utils/searchCache';
 import { clearPlaintextCaches } from '../app/state/plaintextCaches';
 import { clearSoundboardClipCache } from '../app/utils/soundboardClips';
+import { clearSharedPayload } from '../swShare';
 
 // Thrown when the local IndexedDB has a higher schema version than this SDK expects.
 // This happens after a downgrade (e.g. matrix-js-sdk was briefly upgraded and then reverted).
@@ -146,6 +147,9 @@ export const logoutClient = async (mx: MatrixClient) => {
   // [Gitea #57] Same reasoning as clearPlaintextCaches: decrypted soundboard
   // clip bytes stay reachable via live blob: URLs until the reload otherwise.
   clearSoundboardClipCache();
+  // [Gitea #267] Files stashed by the share target stay in Cache Storage until
+  // /share is opened; a shared photo must not outlive the logout.
+  await clearSharedPayload().catch(() => undefined);
   // Remove only the session credential keys, preserving user preferences and
   // unsent drafts (N98). The factory-reset path is clearLoginData() below.
   removeFallbackSession();

src/sw.ts

@@ -1,7 +1,7 @@
 /// <reference lib="WebWorker" />
 
 import { precacheAndRoute, type PrecacheEntry } from 'workbox-precaching';
-import { SHARE_TARGET_PATH, stashSharedForm } from './swShare';
+import { isTrustedShareRequest, SHARE_TARGET_PATH, stashSharedForm } from './swShare';
 import { pickReplySession, replyFailureText, sendNotificationReply } from './swReply';
 
 export type {};
@@ -249,6 +249,11 @@ self.addEventListener('fetch', (event: FetchEvent) => {
   // share_target). Stash the form and bounce to the in-app /share page.
   if (method === 'POST' && new URL(url).pathname.endsWith(SHARE_TARGET_PATH)) {
     const base = new URL(url).pathname.slice(0, -SHARE_TARGET_PATH.length);
+    // [Gitea #267] A cross-site form posting here is not a share: drop it.
+    if (!isTrustedShareRequest(event.request.headers, self.location.origin)) {
+      event.respondWith(Response.redirect(`${base}/`, 303));
+      return;
+    }
     event.respondWith(
       stashSharedForm(event.request, base).catch(() => Response.redirect(`${base}/`, 303)),
     );

src/swShare.test.ts

@@ -1,6 +1,6 @@
 import { test } from 'node:test';
 import assert from 'node:assert/strict';
-import { shareDraftText } from './swShare';
+import { isTrustedShareRequest, shareDraftText } from './swShare';
 
 const base = { files: [], receivedAt: 0 };
 
@@ -25,3 +25,14 @@ test('shareDraftText drops a title/url the text already contains', () => {
   assert.equal(shareDraftText({ ...base, url: 'https://x.test' }), 'https://x.test');
   assert.equal(shareDraftText(base), '');
 });
+
+test('[#267] a share another website submitted is refused', () => {
+  const app = 'https://chat.lotusguild.org';
+  const h = (origin?: string) => new Headers(origin ? { Origin: origin } : {});
+  assert.equal(isTrustedShareRequest(h(), app), true, 'no Origin (OS share sheet)');
+  assert.equal(isTrustedShareRequest(h('null'), app), true, 'opaque origin (OS share sheet)');
+  assert.equal(isTrustedShareRequest(h(app), app), true, 'the app itself');
+  assert.equal(isTrustedShareRequest(h('https://evil.example'), app), false);
+  assert.equal(isTrustedShareRequest(h('https://chat.lotusguild.org.evil.example'), app), false);
+  assert.equal(isTrustedShareRequest(h('http://chat.lotusguild.org'), app), false, 'other scheme');
+});

src/swShare.ts

@@ -20,6 +20,27 @@ export type SharePayload = {
   receivedAt: number;
 };
 
+/**
+ * [Gitea #267] Refuse a share that another website submitted: any site could
+ * otherwise auto-submit a cross-site form here and drop attacker-chosen text
+ * and files into the "Share to…" picker as if the user had shared them.
+ *
+ * The worker can't use `Sec-Fetch-Site`: fetch-metadata headers are added
+ * after the service worker and never appear on `event.request` (checked in
+ * Chromium). `Origin` does: a cross-site form carries the site's origin. The
+ * OS share sheet's POST has no web initiator, so its Origin is `null` or
+ * absent, and both stay accepted. A page can also produce `Origin: null`
+ * (sandboxed frame, no-referrer), which is why /share also says the content
+ * came from elsewhere.
+ */
+export const isTrustedShareRequest = (
+  headers: Pick<Headers, 'get'>,
+  selfOrigin: string,
+): boolean => {
+  const origin = headers.get('Origin');
+  return origin === null || origin === 'null' || origin === selfOrigin;
+};
+
 /** Worker side: stash the POSTed form and answer with a redirect to /share. */
 export async function stashSharedForm(request: Request, base: string): Promise<Response> {
   const form = await request.formData();