46 lines
1.1 KiB
JavaScript
46 lines
1.1 KiB
JavaScript
// Copyright 2018-2020 Signal Messenger, LLC
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// SPDX-License-Identifier: AGPL-3.0-only
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/* global window, Whisper, setTimeout */
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const MESSAGE_MINIMUM_VERSION = 7;
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module.exports = {
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doesDatabaseExist,
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MESSAGE_MINIMUM_VERSION,
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removeDatabase,
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};
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async function doesDatabaseExist() {
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window.log.info('Checking for the existence of IndexedDB data...');
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return new Promise((resolve, reject) => {
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const { id } = Whisper.Database;
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const req = window.indexedDB.open(id);
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let existed = true;
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setTimeout(() => {
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window.log.warn(
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'doesDatabaseExist: Timed out attempting to check IndexedDB status'
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);
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return resolve(false);
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}, 1000);
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req.onerror = reject;
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req.onsuccess = () => {
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req.result.close();
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resolve(existed);
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};
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req.onupgradeneeded = () => {
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if (req.result.version === 1) {
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existed = false;
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window.indexedDB.deleteDatabase(id);
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}
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};
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});
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}
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function removeDatabase() {
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window.log.info(`Deleting IndexedDB database '${Whisper.Database.id}'`);
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window.indexedDB.deleteDatabase(Whisper.Database.id);
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}
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