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Differential D8118 Diff 27760 web/database/worker/db-worker.js

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web/database/worker/db-worker.js

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let encryptionKey: ?CryptoKey = null; let encryptionKey: ?CryptoKey = null;
let persistNeeded: boolean = false; let persistNeeded: boolean = false;
let persistInProgress: boolean = false; let persistInProgress: boolean = false;
async function initDatabase(sqljsFilePath: string, sqljsFilename: ?string) { async function initDatabase(sqljsFilePath: string, sqljsFilename: ?string) {
encryptionKey = await localforage.getItem(SQLITE_ENCRYPTION_KEY); encryptionKey = await localforage.getItem(SQLITE_ENCRYPTION_KEY);
if (!encryptionKey) { if (!encryptionKey) {
const cryptoKey = await generateDatabaseCryptoKey(); const cryptoKey = await generateDatabaseCryptoKey({ extractable: false });
await localforage.setItem(SQLITE_ENCRYPTION_KEY, cryptoKey); await localforage.setItem(SQLITE_ENCRYPTION_KEY, cryptoKey);
} }
const encryptedContent = await localforage.getItem(SQLITE_CONTENT); const encryptedContent = await localforage.getItem(SQLITE_CONTENT);
let dbContent = null; let dbContent = null;
try { try {
if (encryptionKey && encryptedContent) { if (encryptionKey && encryptedContent) {
▲ Show 20 Lines • Show All 113 Lines • ▼ Show 20 Lines): Promise<?WorkerResponseMessage> {
if (message.type === workerRequestMessageTypes.PING) { if (message.type === workerRequestMessageTypes.PING) {
return { return {
type: workerResponseMessageTypes.PONG, type: workerResponseMessageTypes.PONG,
text: 'PONG', text: 'PONG',
}; };
} else if ( } else if (
message.type === workerRequestMessageTypes.GENERATE_DATABASE_ENCRYPTION_KEY message.type === workerRequestMessageTypes.GENERATE_DATABASE_ENCRYPTION_KEY
) { ) {
const cryptoKey = await generateDatabaseCryptoKey(); const cryptoKey = await generateDatabaseCryptoKey({ extractable: false });
await localforage.setItem(SQLITE_ENCRYPTION_KEY, cryptoKey); await localforage.setItem(SQLITE_ENCRYPTION_KEY, cryptoKey);
return undefined; return undefined;
} }
// database operations // database operations
if (message.type === workerRequestMessageTypes.INIT) { if (message.type === workerRequestMessageTypes.INIT) {
await initDatabase(message.sqljsFilePath, message.sqljsFilename); await initDatabase(message.sqljsFilePath, message.sqljsFilename);
return undefined; return undefined;
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