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113 lines
4.0 KiB
TypeScript
113 lines
4.0 KiB
TypeScript
import { noop } from 'lodash';
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import {
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createPublicMessageSentFromNotUs,
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createPublicMessageSentFromUs,
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} from '../models/messageFactory';
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import { SignalService } from '../protobuf';
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import { OpenGroupRequestCommonType } from '../session/apis/open_group_api/opengroupV2/ApiUtil';
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import { OpenGroupMessageV4 } from '../session/apis/open_group_api/opengroupV2/OpenGroupServerPoller';
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import { isUsAnySogsFromCache } from '../session/apis/open_group_api/sogsv3/knownBlindedkeys';
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import { getOpenGroupV2ConversationId } from '../session/apis/open_group_api/utils/OpenGroupUtils';
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import { getConversationController } from '../session/conversations';
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import { removeMessagePadding } from '../session/crypto/BufferPadding';
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import { perfEnd, perfStart } from '../session/utils/Performance';
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import { fromBase64ToArray } from '../session/utils/String';
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import { cleanIncomingDataMessage, messageHasVisibleContent } from './dataMessage';
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import { handleMessageJob, toRegularMessage } from './queuedJob';
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export const handleOpenGroupV4Message = async (
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message: OpenGroupMessageV4,
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roomInfos: OpenGroupRequestCommonType
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) => {
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const { data, id, posted, session_id } = message;
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if (data && posted && session_id) {
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await handleOpenGroupMessage(roomInfos, data, posted, session_id, id);
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} else {
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throw Error('Missing data passed to handleOpenGroupV4Message.');
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}
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};
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/**
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* Common checks and decoding that takes place for both v2 and v4 message types.
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*/
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const handleOpenGroupMessage = async (
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roomInfos: OpenGroupRequestCommonType,
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base64EncodedData: string,
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sentTimestamp: number,
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sender: string,
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serverId: number
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) => {
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const { serverUrl, roomId } = roomInfos;
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if (!base64EncodedData || !sentTimestamp || !sender || !serverId) {
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window?.log?.warn('Invalid data passed to handleOpenGroupV2Message.');
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return;
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}
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// Note: opengroup messages should not be padded
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perfStart(`fromBase64ToArray-${base64EncodedData.length}`);
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const arr = fromBase64ToArray(base64EncodedData);
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perfEnd(`fromBase64ToArray-${base64EncodedData.length}`, 'fromBase64ToArray');
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const dataUint = new Uint8Array(removeMessagePadding(arr));
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const decodedContent = SignalService.Content.decode(dataUint);
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const conversationId = getOpenGroupV2ConversationId(serverUrl, roomId);
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if (!conversationId) {
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window?.log?.error('We cannot handle a message without a conversationId');
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return;
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}
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const idataMessage = decodedContent?.dataMessage;
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if (!idataMessage) {
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window?.log?.error('Invalid decoded opengroup message: no dataMessage');
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return;
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}
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if (!messageHasVisibleContent(idataMessage as SignalService.DataMessage)) {
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window.log.info('received an empty message for sogs');
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return;
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}
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if (
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!getConversationController()
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.get(conversationId)
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?.isOpenGroupV2()
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) {
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window?.log?.error('Received a message for an unknown convo or not an v2. Skipping');
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return;
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}
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const groupConvo = getConversationController().get(conversationId);
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if (!groupConvo) {
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window?.log?.warn('Skipping handleJob for unknown convo: ', conversationId);
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return;
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}
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void groupConvo.queueJob(async () => {
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const isMe = isUsAnySogsFromCache(sender);
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// this timestamp has already been forced to ms by the handleMessagesResponseV4() function
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const commonAttributes = { serverTimestamp: sentTimestamp, serverId, conversationId };
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const attributesForNotUs = { ...commonAttributes, sender };
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// those lines just create an empty message only in-memory with some basic stuff set.
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// the whole decoding of data is happening in handleMessageJob()
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const msgModel = isMe
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? createPublicMessageSentFromUs(commonAttributes)
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: createPublicMessageSentFromNotUs(attributesForNotUs);
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// Note: deduplication is made in filterDuplicatesFromDbAndIncoming now
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await handleMessageJob(
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msgModel,
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groupConvo,
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toRegularMessage(
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cleanIncomingDataMessage(decodedContent?.dataMessage as SignalService.DataMessage)
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),
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noop,
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sender,
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''
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);
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});
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};
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