84 lines
2.2 KiB
TypeScript
84 lines
2.2 KiB
TypeScript
// Copyright 2019-2022 Signal Messenger, LLC
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// SPDX-License-Identifier: AGPL-3.0-only
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import { debounce } from 'lodash';
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import { clearTimeoutIfNecessary } from '../util/clearTimeoutIfNecessary';
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import { DAY } from '../util/durations';
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import * as Errors from '../types/errors';
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async function eraseTapToViewMessages() {
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try {
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window.SignalContext.log.info(
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'eraseTapToViewMessages: Loading messages...'
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);
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const messages =
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await window.Signal.Data.getTapToViewMessagesNeedingErase();
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await Promise.all(
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messages.map(async fromDB => {
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const message = window.MessageController.register(fromDB.id, fromDB);
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window.SignalContext.log.info(
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'eraseTapToViewMessages: erasing message contents',
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message.idForLogging()
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);
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// We do this to update the UI, if this message is being displayed somewhere
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message.trigger('expired');
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await message.eraseContents();
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})
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);
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} catch (error) {
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window.SignalContext.log.error(
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'eraseTapToViewMessages: Error erasing messages',
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Errors.toLogFormat(error)
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);
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}
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window.SignalContext.log.info('eraseTapToViewMessages: complete');
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}
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class TapToViewMessagesDeletionService {
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public update: typeof this.checkTapToViewMessages;
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private timeout?: ReturnType<typeof setTimeout>;
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constructor() {
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this.update = debounce(this.checkTapToViewMessages, 1000);
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}
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private async checkTapToViewMessages() {
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const receivedAt =
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await window.Signal.Data.getNextTapToViewMessageTimestampToAgeOut();
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if (!receivedAt) {
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return;
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}
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const nextCheck = receivedAt + 30 * DAY;
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window.SignalContext.log.info(
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'checkTapToViewMessages: next check at',
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new Date(nextCheck).toISOString()
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);
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let wait = nextCheck - Date.now();
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// In the past
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if (wait < 0) {
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wait = 0;
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}
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// Too far in the future, since it's limited to a 32-bit value
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if (wait > 2147483647) {
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wait = 2147483647;
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}
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clearTimeoutIfNecessary(this.timeout);
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this.timeout = setTimeout(async () => {
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await eraseTapToViewMessages();
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this.update();
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}, wait);
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}
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}
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export const tapToViewMessagesDeletionService =
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new TapToViewMessagesDeletionService();
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