signal-desktop/ts/util/findStoryMessage.ts
2023-05-25 14:12:33 +02:00

87 lines
2.3 KiB
TypeScript

// Copyright 2022 Signal Messenger, LLC
// SPDX-License-Identifier: AGPL-3.0-only
import type { MessageAttributesType } from '../model-types.d';
import type { MessageModel } from '../models/messages';
import type { SignalService as Proto } from '../protobuf';
import * as log from '../logging/log';
import { filter } from './iterables';
import { getContactId } from '../messages/helpers';
import { getTimestampFromLong } from './timestampLongUtils';
export async function findStoryMessages(
conversationId: string,
storyContext?: Proto.DataMessage.IStoryContext
): Promise<Array<MessageModel>> {
if (!storyContext) {
return [];
}
const { authorUuid, sentTimestamp } = storyContext;
if (!authorUuid || !sentTimestamp) {
return [];
}
const sentAt = getTimestampFromLong(sentTimestamp);
const ourConversationId =
window.ConversationController.getOurConversationIdOrThrow();
const inMemoryMessages = window.MessageController.filterBySentAt(sentAt);
const matchingMessages = [
...filter(inMemoryMessages, item =>
isStoryAMatch(
item.attributes,
conversationId,
ourConversationId,
authorUuid,
sentAt
)
),
];
if (matchingMessages.length > 0) {
return matchingMessages;
}
log.info('findStoryMessages: db lookup needed', sentAt);
const messages = await window.Signal.Data.getMessagesBySentAt(sentAt);
const found = messages.filter(item =>
isStoryAMatch(item, conversationId, ourConversationId, authorUuid, sentAt)
);
if (found.length !== 0) {
log.info('findStoryMessages: message not found', sentAt);
return [];
}
const result = found.map(attributes =>
window.MessageController.register(attributes.id, attributes)
);
return result;
}
function isStoryAMatch(
message: MessageAttributesType | null | undefined,
conversationId: string,
ourConversationId: string,
authorUuid: string,
sentTimestamp: number
): message is MessageAttributesType {
if (!message) {
return false;
}
const authorConversation = window.ConversationController.lookupOrCreate({
e164: undefined,
uuid: authorUuid,
reason: 'isStoryAMatch',
});
return (
message.sent_at === sentTimestamp &&
getContactId(message) === authorConversation?.id &&
(message.conversationId === conversationId ||
message.conversationId === ourConversationId)
);
}