62 lines
2.4 KiB
JavaScript
62 lines
2.4 KiB
JavaScript
(function (root, factory) {
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if (typeof module !== 'undefined' && module.exports) module.exports = factory;
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else root.stackchainPrivateDeviceData = factory({
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localStorage: root.localStorage,
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sessionStorage: root.sessionStorage,
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indexedDB: root.indexedDB,
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caches: root.caches,
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serviceWorker: root.navigator?.serviceWorker,
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MessageChannel: root.MessageChannel,
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});
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})(typeof window !== 'undefined' ? window : this, function createPrivateDeviceDataPurger({
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localStorage, sessionStorage, indexedDB, caches, serviceWorker, MessageChannel,
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}) {
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function removeOwnedStorage(storage) {
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if (!storage) return;
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const keys = [];
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for (let index = 0; index < storage.length; index += 1) {
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const key = storage.key(index);
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if (key?.startsWith('stackchain.')) keys.push(key);
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}
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keys.forEach(key => storage.removeItem(key));
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}
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async function stopWorkerOutbox() {
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const registration = await serviceWorker?.ready;
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if (!registration?.active || !MessageChannel) return;
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await new Promise((resolve, reject) => {
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const channel = new MessageChannel();
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const timeout = setTimeout(() => reject(new Error('Background outbox purge timed out.')), 3000);
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channel.port1.onmessage = event => {
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clearTimeout(timeout);
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if (event.data?.ok) resolve();
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else reject(new Error(event.data?.error || 'Background outbox purge failed.'));
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};
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registration.active.postMessage({ type: 'stackchain-purge-outbox' }, [channel.port2]);
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});
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}
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function deletePrivateOutbox() {
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if (!indexedDB) return Promise.resolve();
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return new Promise((resolve, reject) => {
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let request;
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try { request = indexedDB.deleteDatabase('stackchain-background-outbox-v1'); }
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catch (error) { reject(error); return; }
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request.onsuccess = () => resolve();
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request.onerror = () => reject(request.error || new Error('IndexedDB deletion failed.'));
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request.onblocked = () => reject(new Error('IndexedDB deletion was blocked.'));
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});
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}
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return async function clearPrivateDeviceData() {
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removeOwnedStorage(localStorage);
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if (sessionStorage !== localStorage) removeOwnedStorage(sessionStorage);
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await stopWorkerOutbox();
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await deletePrivateOutbox();
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const keys = await caches?.keys?.() || [];
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await Promise.all(
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keys.filter(key => key.startsWith('stackchain-dashboard-')).map(key => caches.delete(key))
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);
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};
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});
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