Alex Gleason
2ecd557430
openDatabase() now catches errors from idb's openDB() (which throws synchronously when indexedDB is undefined) and returns null. All consumers — profileCache, nip05Cache, dmMessageStore — check for null and silently degrade to in-memory only. The DM message store also stops re-throwing errors, which previously could produce unhandled rejections in DMProvider.
59 lines
1.9 KiB
TypeScript
59 lines
1.9 KiB
TypeScript
import { openDB, type IDBPDatabase } from 'idb';
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// ============================================================================
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// Unified IndexedDB database for Ditto.
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//
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// All persistent client-side data lives in a single "ditto" database with
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// one object store per data domain. Callers should import `openDatabase()`
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// rather than managing their own `openDB` calls.
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//
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// When IndexedDB is unavailable (e.g. iOS Lockdown Mode, certain private-
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// browsing modes) every function in this module still works — callers get
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// `null` instead of a database handle and should skip persistence silently.
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// ============================================================================
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const DB_NAME = 'ditto';
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const DB_VERSION = 1;
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/** Store names — keep in sync with the `upgrade` callback below. */
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export const STORE = {
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NIP05: 'nip05',
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PROFILES: 'profiles',
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MESSAGES: 'messages',
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} as const;
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let dbPromise: Promise<IDBPDatabase | null> | null = null;
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/**
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* Open (or reuse) the shared Ditto database.
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*
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* Returns `null` when IndexedDB is not available (e.g. iOS Lockdown Mode,
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* some private-browsing contexts). The result is cached for the page
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* lifetime so the availability check runs only once.
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*/
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export function openDatabase(): Promise<IDBPDatabase | null> {
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if (!dbPromise) {
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dbPromise = (async () => {
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try {
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return await openDB(DB_NAME, DB_VERSION, {
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upgrade(db) {
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if (!db.objectStoreNames.contains(STORE.NIP05)) {
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db.createObjectStore(STORE.NIP05);
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}
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if (!db.objectStoreNames.contains(STORE.PROFILES)) {
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db.createObjectStore(STORE.PROFILES);
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}
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if (!db.objectStoreNames.contains(STORE.MESSAGES)) {
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db.createObjectStore(STORE.MESSAGES);
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}
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},
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});
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} catch {
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// IndexedDB is unavailable — degrade to in-memory only.
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return null;
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}
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})();
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}
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return dbPromise;
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}
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