fix: purge every private offline store (Closes #889)

frontend/index.html

@@ -1243,6 +1243,7 @@
 
 <div class="footer">Creative AI-imbued UI • stackchain-dashboard</div>
 
+<script src="static/private-data-registry.js"></script>
 <script src="static/session.js"></script>
 <script src="static/feature-loader.js"></script>
 <script src="static/conversation-action-hydrator.js"></script>

frontend/private-data-registry.js

@@ -0,0 +1,9 @@
+(function (root) {
+  const databases = Object.freeze([
+    'stackchain-background-outbox-v1',
+    'stackchain-offline-work-v2',
+    'stackchain-unfiled-captures-v1',
+  ]);
+  if (typeof module !== 'undefined' && module.exports) module.exports = databases;
+  else root.stackchainPrivateDatabases = databases;
+})(typeof globalThis !== 'undefined' ? globalThis : this);

frontend/private-device-data.js

@@ -1,5 +1,10 @@
 (function (root, factory) {
-  if (typeof module !== 'undefined' && module.exports) module.exports = factory;
+  if (typeof module !== 'undefined' && module.exports) {
+    module.exports = options => factory({
+      ...options,
+      privateDatabases: require('./private-data-registry.js'),
+    });
+  }
   else root.stackchainPrivateDeviceData = factory({
     localStorage: root.localStorage,
     sessionStorage: root.sessionStorage,
@@ -7,9 +12,10 @@
     caches: root.caches,
     serviceWorker: root.navigator?.serviceWorker,
     MessageChannel: root.MessageChannel,
+    privateDatabases: root.stackchainPrivateDatabases,
   });
 })(typeof window !== 'undefined' ? window : this, function createPrivateDeviceDataPurger({
-  localStorage, sessionStorage, indexedDB, caches, serviceWorker, MessageChannel,
+  localStorage, sessionStorage, indexedDB, caches, serviceWorker, MessageChannel, privateDatabases,
 }) {
   function removeOwnedStorage(storage) {
     if (!storage) return;
@@ -52,9 +58,7 @@
     removeOwnedStorage(localStorage);
     if (sessionStorage !== localStorage) removeOwnedStorage(sessionStorage);
     await stopWorkerOutbox();
-    await deletePrivateDatabase('stackchain-background-outbox-v1');
-    await deletePrivateDatabase('stackchain-offline-work-v2');
-    await deletePrivateDatabase('stackchain-unfiled-captures-v1');
+    for (const name of privateDatabases) await deletePrivateDatabase(name);
     const keys = await caches?.keys?.() || [];
     await Promise.all(
       keys.filter(key => key.startsWith('stackchain-dashboard-')).map(key => caches.delete(key))

frontend/service-worker.js

@@ -1,10 +1,12 @@
 const BASE = new URL('./', self.location.href).pathname;
+importScripts(BASE + 'static/private-data-registry.js');
 importScripts(BASE + 'static/background-issue-sync.js');
 const CACHE = 'stackchain-dashboard-shell-v102';
 const OFFLINE_LEASE_URL = new URL(BASE + '__offline-session-lease', self.location.origin).href;
 const OUTAGE_STATUSES = new Set([500, 502, 503, 504]);
 const NAVIGATION_TIMEOUT_MS = self.__STACKCHAIN_NAVIGATION_TIMEOUT_MS || 4000;
 const PUSH_ACTION_TIMEOUT_MS = self.__STACKCHAIN_PUSH_ACTION_TIMEOUT_MS || 8000;
+const PRIVATE_DATABASES = self.stackchainPrivateDatabases;
 const SHELL = [
   BASE,
   BASE + 'manifest.webmanifest',
@@ -210,9 +212,13 @@ async function deletePrivateDatabase(name) {
   });
 }
 
+async function deletePrivateDatabases() {
+  for (const name of PRIVATE_DATABASES) await deletePrivateDatabase(name);
+}
+
 async function purgeRevokedSessionData() {
   await issueSync.purge();
-  await deletePrivateDatabase('stackchain-unfiled-captures-v1');
+  await deletePrivateDatabases();
   const keys = await caches.keys();
   await Promise.all(
     keys.filter(key => key.startsWith('stackchain-dashboard-')).map(key => caches.delete(key))
@@ -249,7 +255,7 @@ async function offlineLeaseState(cache) {
 
 async function expiredOfflineResponse() {
   await issueSync.purge();
-  await deletePrivateDatabase('stackchain-unfiled-captures-v1');
+  await deletePrivateDatabases();
   const keys = await caches.keys();
   await Promise.all(
     keys.filter(key => key.startsWith('stackchain-dashboard-')).map(key => caches.delete(key))
@@ -370,7 +376,7 @@ self.addEventListener('message', event => {
   if (event.data?.type === 'stackchain-purge-outbox') event.waitUntil((async () => {
     try {
       await issueSync.purge();
-      await deletePrivateDatabase('stackchain-unfiled-captures-v1');
+      await deletePrivateDatabases();
       event.ports?.[0]?.postMessage({ ok: true });
     } catch (error) {
       event.ports?.[0]?.postMessage({ ok: false, error: String(error?.message || 'Outbox purge failed.') });

frontend/session.js

@@ -1,5 +1,10 @@
 (function (root, factory) {
-  if (typeof module !== 'undefined' && module.exports) module.exports = factory;
+  if (typeof module !== 'undefined' && module.exports) {
+    module.exports = options => factory({
+      ...options,
+      privateDatabases: require('./private-data-registry.js'),
+    });
+  }
   else {
     const base = new URL('./', root.location.href).pathname;
     const originalFetch = root.fetch.bind(root);
@@ -15,6 +20,7 @@
       serviceWorker: root.navigator?.serviceWorker,
       credentials: root.navigator?.credentials,
       MessageChannel: root.MessageChannel,
+      privateDatabases: root.stackchainPrivateDatabases,
       location: root.location,
       addActivityListener: (type, listener, options) => root.addEventListener(type, listener, options),
       confirmAction: message => root.confirm(message),
@@ -82,7 +88,7 @@
     root.stackchainSession = boundary;
   }
 })(typeof window !== 'undefined' ? window : this, function createSessionBoundary({
-  cookie, origin, base, fetchImpl, localStorage, sessionStorage, indexedDB, caches, serviceWorker, credentials, MessageChannel, location, confirmAction, addActivityListener,
+  cookie, origin, base, fetchImpl, localStorage, sessionStorage, indexedDB, caches, serviceWorker, credentials, MessageChannel, privateDatabases, location, confirmAction, addActivityListener,
   promptAuthorization = () => null,
   onExpired = () => {},
   onClearError = () => {},
@@ -454,9 +460,7 @@
     if (sessionStorage !== localStorage) removeDashboardStorage(sessionStorage);
     try {
       await stopWorkerOutbox();
-      await deletePrivateDatabase('stackchain-background-outbox-v1');
-      await deletePrivateDatabase('stackchain-offline-work-v2');
-      await deletePrivateDatabase('stackchain-unfiled-captures-v1');
+      for (const name of privateDatabases) await deletePrivateDatabase(name);
     } catch (_error) {
       const error = new Error('Could not clear private queued work from this device.');
       onClearError(error);