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session-desktop/ts/receiver/opengroup.ts

87 lines
3.1 KiB
TypeScript

import _, { noop } from 'lodash';
import {
createPublicMessageSentFromNotUs,
createPublicMessageSentFromUs,
} from '../models/messageFactory';
import { SignalService } from '../protobuf';
import { OpenGroupRequestCommonType } from '../session/apis/open_group_api/opengroupV2/ApiUtil';
import { OpenGroupMessageV2 } from '../session/apis/open_group_api/opengroupV2/OpenGroupMessageV2';
import { getOpenGroupV2ConversationId } from '../session/apis/open_group_api/utils/OpenGroupUtils';
import { getConversationController } from '../session/conversations';
import { removeMessagePadding } from '../session/crypto/BufferPadding';
import { UserUtils } from '../session/utils';
import { perfEnd, perfStart } from '../session/utils/Performance';
import { fromBase64ToArray } from '../session/utils/String';
import { handleMessageJob, toRegularMessage } from './queuedJob';
export async function handleOpenGroupV2Message(
message: OpenGroupMessageV2,
roomInfos: OpenGroupRequestCommonType
) {
const { base64EncodedData, sentTimestamp, sender, serverId } = message;
const { serverUrl, roomId } = roomInfos;
if (!base64EncodedData || !sentTimestamp || !sender || !serverId) {
window?.log?.warn('Invalid data passed to handleOpenGroupV2Message.', message);
return;
}
// Note: opengroup messages should not be padded
perfStart(`fromBase64ToArray-${base64EncodedData.length}`);
const arr = fromBase64ToArray(base64EncodedData);
perfEnd(`fromBase64ToArray-${base64EncodedData.length}`, 'fromBase64ToArray');
const dataUint = new Uint8Array(removeMessagePadding(arr));
const decoded = SignalService.Content.decode(dataUint);
const conversationId = getOpenGroupV2ConversationId(serverUrl, roomId);
if (!conversationId) {
window?.log?.error('We cannot handle a message without a conversationId');
return;
}
const idataMessage = decoded?.dataMessage;
if (!idataMessage) {
window?.log?.error('Invalid decoded opengroup message: no dataMessage');
return;
}
if (
!getConversationController()
.get(conversationId)
?.isOpenGroupV2()
) {
window?.log?.error('Received a message for an unknown convo or not an v2. Skipping');
return;
}
const groupConvo = getConversationController().get(conversationId);
if (!groupConvo) {
window?.log?.warn('Skipping handleJob for unknown convo: ', conversationId);
return;
}
void groupConvo.queueJob(async () => {
const isMe = UserUtils.isUsFromCache(sender);
const commonAttributes = { serverTimestamp: sentTimestamp, serverId, conversationId };
const attributesForNotUs = { ...commonAttributes, sender };
// those lines just create an empty message only in-memory with some basic stuff set.
// the whole decoding of data is happening in handleMessageJob()
const msgModel = isMe
? createPublicMessageSentFromUs(commonAttributes)
: createPublicMessageSentFromNotUs(attributesForNotUs);
// Note: deduplication is made in filterDuplicatesFromDbAndIncoming now
await handleMessageJob(
msgModel,
groupConvo,
toRegularMessage(decoded?.dataMessage as SignalService.DataMessage),
noop,
sender,
''
);
});
}