73 lines
2 KiB
TypeScript
73 lines
2 KiB
TypeScript
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// Copyright 2022 Signal Messenger, LLC
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// SPDX-License-Identifier: AGPL-3.0-only
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import type { MessageAttributesType } from '../model-types.d';
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import type { MessageModel } from '../models/messages';
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import type { SignalService as Proto } from '../protobuf';
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import * as log from '../logging/log';
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import { find } from './iterables';
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import { getContactId } from '../messages/helpers';
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import { getTimestampFromLong } from './timestampLongUtils';
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export async function findStoryMessage(
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conversationId: string,
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storyContext?: Proto.DataMessage.IStoryContext
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): Promise<MessageModel | undefined> {
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if (!storyContext) {
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return;
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}
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const { authorUuid, sentTimestamp } = storyContext;
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if (!authorUuid || !sentTimestamp) {
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return;
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}
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const sentAt = getTimestampFromLong(sentTimestamp);
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const inMemoryMessages = window.MessageController.filterBySentAt(sentAt);
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const matchingMessage = find(inMemoryMessages, item =>
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isStoryAMatch(item.attributes, conversationId, authorUuid, sentAt)
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);
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if (matchingMessage) {
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return matchingMessage;
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}
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log.info('findStoryMessage: db lookup needed', sentAt);
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const messages = await window.Signal.Data.getMessagesBySentAt(sentAt);
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const found = messages.find(item =>
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isStoryAMatch(item, conversationId, authorUuid, sentAt)
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);
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if (!found) {
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log.info('findStoryMessage: message not found', sentAt);
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return;
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}
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const message = window.MessageController.register(found.id, found);
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return message;
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}
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export function isStoryAMatch(
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message: MessageAttributesType | null | undefined,
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conversationId: string,
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authorUuid: string,
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sentTimestamp: number
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): message is MessageAttributesType {
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if (!message) {
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return false;
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}
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const authorConversationId = window.ConversationController.ensureContactIds({
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e164: undefined,
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uuid: authorUuid,
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});
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return (
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message.sent_at === sentTimestamp &&
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message.conversationId === conversationId &&
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getContactId(message) === authorConversationId
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);
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}
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