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575 lines
22 KiB
TypeScript
575 lines
22 KiB
TypeScript
/* eslint-disable no-restricted-syntax */
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/* eslint-disable no-await-in-loop */
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import { base64_variants, from_base64 } from 'libsodium-wrappers-sumo';
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import { compact, isArray, isEmpty, isFinite, isNumber, isObject, pick } from 'lodash';
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import { v4 } from 'uuid';
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import { OpenGroupData } from '../../../../data/opengroups';
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import { ConversationModel } from '../../../../models/conversation';
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import { handleOpenGroupV4Message } from '../../../../receiver/opengroup';
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import { callUtilsWorker } from '../../../../webworker/workers/browser/util_worker_interface';
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import { getConversationController } from '../../../conversations';
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import { PubKey } from '../../../types';
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import { OpenGroupRequestCommonType } from '../opengroupV2/ApiUtil';
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import {
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OpenGroupMessageV4,
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getRoomAndUpdateLastFetchTimestamp,
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} from '../opengroupV2/OpenGroupServerPoller';
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import { filterDuplicatesFromDbAndIncomingV4 } from '../opengroupV2/SogsFilterDuplicate';
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import { getOpenGroupV2ConversationId } from '../utils/OpenGroupUtils';
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import {
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addCachedBlindedKey,
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findCachedBlindedMatchOrLookItUp,
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findCachedOurBlindedPubkeyOrLookItUp,
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getCachedNakedKeyFromBlindedNoServerPubkey,
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tryMatchBlindWithStandardKey,
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} from './knownBlindedkeys';
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import { SogsBlinding } from './sogsBlinding';
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import { handleCapabilities } from './sogsCapabilities';
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import { BatchSogsReponse, OpenGroupBatchRow, SubRequestMessagesType } from './sogsV3BatchPoll';
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import { Data } from '../../../../data/data';
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import { ConversationTypeEnum } from '../../../../models/conversationAttributes';
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import { createSwarmMessageSentFromUs } from '../../../../models/messageFactory';
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import { SignalService } from '../../../../protobuf';
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import { innerHandleSwarmContentMessage } from '../../../../receiver/contentMessage';
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import { handleOutboxMessageModel } from '../../../../receiver/dataMessage';
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import { EnvelopePlus } from '../../../../receiver/types';
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import { assertUnreachable } from '../../../../types/sqlSharedTypes';
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import { getSodiumRenderer } from '../../../crypto';
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import { removeMessagePadding } from '../../../crypto/BufferPadding';
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import { DisappearingMessages } from '../../../disappearing_messages';
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import { UserUtils } from '../../../utils';
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import { sogsRollingDeletions } from './sogsRollingDeletions';
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import { processMessagesUsingCache } from './sogsV3MutationCache';
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/**
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* Get the convo matching those criteria and make sure it is an opengroup convo, or return null.
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* If you get null, you most likely need to cancel the processing of whatever you are doing
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*/
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function getSogsConvoOrReturnEarly(serverUrl: string, roomId: string): ConversationModel | null {
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const convoId = getOpenGroupV2ConversationId(serverUrl, roomId);
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if (!convoId) {
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window.log.info(`getSogsConvoOrReturnEarly: convoId not built with ${serverUrl}: ${roomId}`);
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return null;
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}
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const foundConvo = getConversationController().get(convoId);
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if (!foundConvo) {
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window.log.info('getSogsConvoOrReturnEarly: convo not found: ', convoId);
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return null;
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}
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if (!foundConvo.isOpenGroupV2()) {
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window.log.info('getSogsConvoOrReturnEarly: convo not an opengroup: ', convoId);
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return null;
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}
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return foundConvo;
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}
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/**
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*
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* Handle the pollinfo from the response of a pysogs.
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* Pollinfos contains the subscriberCount (active users), the read, upload and write things we as a user can do.
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*/
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async function handlePollInfoResponse(
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statusCode: number,
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pollInfoResponseBody: {
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active_users: number;
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read: boolean;
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token: string;
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upload: boolean;
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write: boolean;
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details: {
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admins?: Array<string>;
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image_id: number;
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name?: string;
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moderators?: Array<string>;
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hidden_admins?: Array<string>;
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hidden_moderators?: Array<string>;
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};
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},
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serverUrl: string
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) {
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if (statusCode !== 200) {
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window.log.info('handlePollInfoResponse subRequest status code is not 200:', statusCode);
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return;
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}
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if (!isObject(pollInfoResponseBody)) {
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window.log.info('handlePollInfoResponse pollInfoResponseBody is not object');
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return;
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}
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const { active_users, read, upload, write, token, details } = pollInfoResponseBody;
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if (!token || !serverUrl) {
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window.log.info('handlePollInfoResponse token and serverUrl must be set');
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return;
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}
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const stillPolledRooms = OpenGroupData.getV2OpenGroupRoomsByServerUrl(serverUrl);
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if (!stillPolledRooms?.some(r => r.roomId === token && r.serverUrl === serverUrl)) {
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window.log.info('handlePollInfoResponse room is no longer polled: ', token);
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return;
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}
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const foundConvo = getSogsConvoOrReturnEarly(serverUrl, token);
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if (!foundConvo) {
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return; // we already print something in getSogsConvoOrReturnEarly
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}
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await foundConvo.setPollInfo({
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read,
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write,
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upload,
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active_users,
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details: pick(
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details,
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'admins',
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'image_id',
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'moderators',
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'hidden_admins',
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'hidden_moderators',
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'name'
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),
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});
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}
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async function filterOutMessagesInvalidSignature(
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messagesFilteredBlindedIds: Array<OpenGroupMessageV4>
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) {
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const sentToWorker = messagesFilteredBlindedIds.map(m => {
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return {
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sender: PubKey.cast(m.session_id).key, // we need to keep the prefix if this is a blinded or not pubkey
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base64EncodedSignature: m.signature,
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base64EncodedData: m.data,
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};
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});
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const signatureValidEncodedData = (await callUtilsWorker(
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'verifyAllSignatures',
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sentToWorker
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)) as Array<string>;
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const signaturesValidMessages = compact(
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(signatureValidEncodedData || []).map(validData =>
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messagesFilteredBlindedIds.find(m => m.data === validData)
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)
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);
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return signaturesValidMessages;
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}
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const handleSogsV3DeletedMessages = async (
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messages: Array<OpenGroupMessageV4>,
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serverUrl: string,
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roomId: string
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) => {
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const messagesDeleted = messages.filter(m => Boolean(m.deleted));
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const messagesWithoutDeleted = messages.filter(m => !m.deleted);
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if (!messagesDeleted.length) {
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return messagesWithoutDeleted;
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}
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const allIdsRemoved = messagesDeleted.map(m => m.id);
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try {
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const convoId = getOpenGroupV2ConversationId(serverUrl, roomId);
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const convo = getConversationController().get(convoId);
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const messageIds = await Data.getMessageIdsFromServerIds(allIdsRemoved, convo.id);
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allIdsRemoved.forEach(removedId => {
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sogsRollingDeletions.addMessageDeletedId(convoId, removedId);
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});
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if (messageIds && messageIds.length) {
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await DisappearingMessages.destroyMessagesAndUpdateRedux(
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messageIds.map(messageId => ({
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conversationKey: convoId,
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messageId,
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}))
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);
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}
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} catch (e) {
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window?.log?.warn('handleDeletions failed:', e);
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}
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return messagesWithoutDeleted;
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};
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const handleMessagesResponseV4 = async (
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messages: Array<OpenGroupMessageV4>,
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serverUrl: string,
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subrequestOption: SubRequestMessagesType
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) => {
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if (!subrequestOption || !subrequestOption.messages) {
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window?.log?.error('handleBatchPollResults - missing fields required for message subresponse');
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return;
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}
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try {
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const { roomId } = subrequestOption.messages;
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const stillPolledRooms = OpenGroupData.getV2OpenGroupRoomsByServerUrl(serverUrl);
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if (!stillPolledRooms?.some(r => r.roomId === roomId && r.serverUrl === serverUrl)) {
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window.log.info(`handleMessagesResponseV4: we are no longer polling for ${roomId}: skipping`);
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return;
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}
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const convoId = getOpenGroupV2ConversationId(serverUrl, roomId);
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const roomInfos = await getRoomAndUpdateLastFetchTimestamp(
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convoId,
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messages,
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subrequestOption.messages
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);
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if (!roomInfos || !roomInfos.conversationId) {
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return;
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}
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if (!isArray(messages)) {
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window.log.warn("handleMessagesResponseV4: didn't get an object from batch poll");
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return;
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}
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const messagesWithoutReactionOnlyUpdates = messages.filter(m => {
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const keys = Object.keys(m);
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if (
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keys.length === 3 &&
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keys.includes('id') &&
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keys.includes('seqno') &&
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keys.includes('reactions')
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) {
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return false;
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}
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return true;
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});
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// Incoming messages from sogvs v3 are returned in descending order from the latest seqno, we need to sort it chronologically
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// Incoming messages for sogs v3 have a timestamp in seconds and not ms.
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// Session works with timestamp in ms, for a lot of things, so first, lets fix this.
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const messagesWithMsTimestamp = messagesWithoutReactionOnlyUpdates
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.sort((a, b) => (a.seqno < b.seqno ? -1 : a.seqno > b.seqno ? 1 : 0))
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.map(m => ({
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...m,
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posted: m.posted ? Math.floor(m.posted * 1000) : undefined,
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}));
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const messagesWithoutDeleted = await handleSogsV3DeletedMessages(
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messagesWithMsTimestamp,
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serverUrl,
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subrequestOption.messages.roomId
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);
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const messagesWithValidSignature = await filterOutMessagesInvalidSignature(
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messagesWithoutDeleted
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);
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// we do a first check with blinded ids. Looking to filter out messages we already received from that blinded id.
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const messagesFilteredBlindedIds = await filterDuplicatesFromDbAndIncomingV4(
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messagesWithValidSignature
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);
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const roomDetails: OpenGroupRequestCommonType = pick(roomInfos, 'serverUrl', 'roomId');
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// then we try to find matching real session ids with the blinded ids we have.
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// this is where we override the blindedId with the real one in case we already know that user real sessionId
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const messagesWithResolvedBlindedIdsIfFound = [];
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for (let index = 0; index < messagesFilteredBlindedIds.length; index++) {
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const newMessage = messagesFilteredBlindedIds[index];
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if (newMessage.session_id) {
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const unblindedIdFound = getCachedNakedKeyFromBlindedNoServerPubkey(newMessage.session_id);
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// override the sender in the message itself if we are the sender
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if (unblindedIdFound && UserUtils.isUsFromCache(unblindedIdFound)) {
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newMessage.session_id = unblindedIdFound;
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}
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messagesWithResolvedBlindedIdsIfFound.push(newMessage);
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} else {
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throw Error('session_id is missing so we cannot resolve the blinded id');
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}
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}
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// we use the unverified newMessages seqno and id as last polled because we actually did poll up to those ids.
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const incomingMessageSeqNo = compact(messages.map(n => n.seqno));
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const maxNewMessageSeqNo = Math.max(...incomingMessageSeqNo);
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for (let index = 0; index < messagesWithResolvedBlindedIdsIfFound.length; index++) {
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const msgToHandle = messagesWithResolvedBlindedIdsIfFound[index];
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try {
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await handleOpenGroupV4Message(msgToHandle, roomDetails);
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} catch (e) {
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window?.log?.warn('handleOpenGroupV4Message', e);
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}
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}
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// handling all messages might be slow, so instead refresh the data here before updating the fields we care about
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// and writing it again
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const roomInfosRefreshed = OpenGroupData.getV2OpenGroupRoom(roomInfos.conversationId);
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if (!roomInfosRefreshed || !roomInfosRefreshed.serverUrl || !roomInfosRefreshed.roomId) {
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window.log.warn(`No room for convo ${roomInfos.conversationId}`);
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return;
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}
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// we need to update the timestamp even if we don't have a new MaxMessageServerId
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if (isNumber(maxNewMessageSeqNo) && isFinite(maxNewMessageSeqNo)) {
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roomInfosRefreshed.maxMessageFetchedSeqNo = maxNewMessageSeqNo;
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}
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roomInfosRefreshed.lastFetchTimestamp = Date.now();
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await OpenGroupData.saveV2OpenGroupRoom(roomInfosRefreshed);
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const messagesWithReactions = messages.filter(m => m.reactions !== undefined);
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if (messagesWithReactions.length > 0) {
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const conversationId = getOpenGroupV2ConversationId(serverUrl, roomId);
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const groupConvo = getConversationController().get(conversationId);
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if (groupConvo && groupConvo.isOpenGroupV2()) {
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for (const messageWithReaction of messagesWithReactions) {
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if (isEmpty(messageWithReaction.reactions)) {
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/*
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* When a message is deleted from the server, we get the deleted event as a data: null on the message itself
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* and an update on its reactions.
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* But, because we just deleted that message, we can skip trying to update its reactions: it's not in the DB anymore.
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*/
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if (sogsRollingDeletions.hasMessageDeletedId(conversationId, messageWithReaction.id)) {
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continue;
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}
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}
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void groupConvo.queueJob(async () => {
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await processMessagesUsingCache(serverUrl, roomId, messageWithReaction);
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});
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}
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}
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}
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} catch (e) {
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window?.log?.warn('handleNewMessages failed:', e.message);
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}
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};
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type InboxOutboxResponseObject = {
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id: number; // that specific inbox message id
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sender: string; // blindedPubkey of the sender, the unblinded one is inside message content, encrypted only for our blinded pubkey
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recipient: string; // blindedPubkey of the recipient, used for outbox messages only
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posted_at: number; // timestamp as seconds.microsec
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message: string; // base64 data
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};
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async function handleInboxOutboxMessages(
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inboxOutboxResponse: Array<InboxOutboxResponseObject>,
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serverUrl: string,
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isOutbox: boolean
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) {
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// inbox/outbox messages are blinded so decrypt them using the blinding logic.
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// handle them as a message request after that.
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if (!inboxOutboxResponse || !isArray(inboxOutboxResponse) || inboxOutboxResponse.length === 0) {
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// nothing to do
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return;
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}
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const roomInfos = OpenGroupData.getV2OpenGroupRoomsByServerUrl(serverUrl);
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if (!roomInfos || !roomInfos.length || !roomInfos[0].serverPublicKey) {
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return;
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}
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const ourKeypairBytes = await UserUtils.getUserED25519KeyPairBytes();
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if (!ourKeypairBytes) {
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throw new Error('handleInboxOutboxMessages needs current user keypair');
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}
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const serverPubkey = roomInfos[0].serverPublicKey;
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const sodium = await getSodiumRenderer();
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// make sure to add our blindedpubkey to this server in the cache, if it's not already there
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await findCachedOurBlindedPubkeyOrLookItUp(serverPubkey, sodium);
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for (let index = 0; index < inboxOutboxResponse.length; index++) {
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const inboxOutboxItem = inboxOutboxResponse[index];
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const isOutgoing = isOutbox;
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try {
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const data = from_base64(inboxOutboxItem.message, base64_variants.ORIGINAL);
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const postedAtInMs = Math.floor(inboxOutboxItem.posted_at * 1000);
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const otherBlindedPubkey = isOutbox ? inboxOutboxItem.recipient : inboxOutboxItem.sender;
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const decrypted = await SogsBlinding.decryptWithSessionBlindingProtocol(
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data,
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isOutgoing,
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otherBlindedPubkey,
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serverPubkey,
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ourKeypairBytes
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);
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// decrypt message from result
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const content = new Uint8Array(removeMessagePadding(decrypted.plainText));
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const builtEnvelope: EnvelopePlus = {
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content,
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source: decrypted.senderUnblinded, // this is us for an outbox message, and the sender for an inbox message
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senderIdentity: decrypted.senderUnblinded,
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receivedAt: Date.now(),
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timestamp: postedAtInMs,
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id: v4(),
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type: SignalService.Envelope.Type.SESSION_MESSAGE, // this is not right, but we forward an already decrypted envelope so we don't care
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};
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if (isOutbox) {
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/**
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* Handling outbox messages needs to skip some of the pipeline.
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* It is a kind of synced message, but without the field syncTarget set.
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* We also need to do some custom sogs stuff like setting from which sogs conversationID this message comes from.
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* We will need this to send new message to that user from our second device.
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*/
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const recipient = inboxOutboxItem.recipient;
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const contentDecoded = SignalService.Content.decode(content);
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// if we already know this user's unblinded pubkey, store the blinded message we sent to that blinded recipient under
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// the unblinded conversation instead (as we would have merge the blinded one with the other )
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const unblindedIDOrBlinded =
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(await findCachedBlindedMatchOrLookItUp(recipient, serverPubkey, sodium)) || recipient;
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if (contentDecoded.dataMessage) {
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const outboxConversationModel = await getConversationController().getOrCreateAndWait(
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unblindedIDOrBlinded,
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ConversationTypeEnum.PRIVATE
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);
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const serverConversationId = OpenGroupData.getV2OpenGroupRoomsByServerUrl(serverUrl)?.[0]
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.conversationId;
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if (!serverConversationId) {
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throw new Error('serverConversationId needs to exist');
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}
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const msgModel = createSwarmMessageSentFromUs({
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conversationId: unblindedIDOrBlinded,
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messageHash: '',
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sentAt: postedAtInMs,
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});
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await outboxConversationModel.setOriginConversationID(serverConversationId);
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await handleOutboxMessageModel(
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msgModel,
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'',
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postedAtInMs,
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contentDecoded.dataMessage as SignalService.DataMessage,
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outboxConversationModel
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);
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}
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} else {
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// this is an inbox message
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const sender = inboxOutboxItem.sender;
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try {
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const match = tryMatchBlindWithStandardKey(
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decrypted.senderUnblinded,
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sender,
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serverPubkey,
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sodium
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);
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if (!match) {
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throw new Error(
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`tryMatchBlindWithStandardKey failed for blinded ${decrypted.senderUnblinded} and ${sender}`
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);
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}
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// that sender just sent us its unblindedId.
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await addCachedBlindedKey({
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blindedId: sender,
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realSessionId: decrypted.senderUnblinded,
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serverPublicKey: serverPubkey,
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});
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await findCachedBlindedMatchOrLookItUp(sender, serverPubkey, sodium);
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} catch (e) {
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window.log.warn('tryMatchBlindWithStandardKey could not veriyfy');
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}
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await innerHandleSwarmContentMessage({
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envelope: builtEnvelope,
|
|
sentAtTimestamp: postedAtInMs,
|
|
plaintext: builtEnvelope.content,
|
|
messageHash: '',
|
|
messageExpirationFromRetrieve: null, // sogs message do not expire
|
|
});
|
|
}
|
|
} catch (e) {
|
|
window.log.warn('handleOutboxMessages failed with:', e.message);
|
|
}
|
|
}
|
|
|
|
const rooms = OpenGroupData.getV2OpenGroupRoomsByServerUrl(serverUrl);
|
|
|
|
if (!rooms || !rooms.length) {
|
|
window?.log?.error('handleInboxOutboxMessages - Found no rooms with matching server url');
|
|
return;
|
|
}
|
|
|
|
const maxInboxOutboxId = inboxOutboxResponse.length
|
|
? Math.max(...inboxOutboxResponse.map(inboxOutboxItem => inboxOutboxItem.id))
|
|
: undefined || undefined;
|
|
|
|
// we should probably extract the inboxId & outboxId fetched to another table, as it is server wide and not room specific
|
|
if (isNumber(maxInboxOutboxId)) {
|
|
const updatedRooms = isOutbox
|
|
? rooms.map(r => ({ ...r, lastOutboxIdFetched: maxInboxOutboxId }))
|
|
: rooms.map(r => ({ ...r, lastInboxIdFetched: maxInboxOutboxId }));
|
|
// this won't write if no changes are detected
|
|
await OpenGroupData.saveV2OpenGroupRooms(updatedRooms);
|
|
}
|
|
}
|
|
|
|
export const handleBatchPollResults = async (
|
|
serverUrl: string,
|
|
batchPollResults: BatchSogsReponse,
|
|
/** using this as explicit way to ensure order */
|
|
subrequestOptionsLookup: Array<OpenGroupBatchRow>
|
|
) => {
|
|
// @@: Might not need the explicit type field.
|
|
// pro: prevents cases where accidentally two fields for the opt. e.g. capability and message fields truthy.
|
|
// con: the data can be inferred (excluding above case) so it's close to being a redundant field
|
|
|
|
// note: handling capabilities first before handling anything else as it affects how things are handled.
|
|
|
|
await handleCapabilities(subrequestOptionsLookup, batchPollResults, serverUrl);
|
|
|
|
if (batchPollResults && isArray(batchPollResults.body)) {
|
|
/**
|
|
* We run those calls sequentially rather than with a Promise.all call because if we were running those in parallel
|
|
* one call might overwrite the changes to the DB of the other one,
|
|
* Doing those sequentially makes sure that the cache got from the second call is up to date, before writing it.
|
|
*/
|
|
for (let index = 0; index < batchPollResults.body.length; index++) {
|
|
const subResponse = batchPollResults.body[index] as any;
|
|
// using subreqOptions as request type lookup,
|
|
// assumes batch subresponse order matches the subrequest order
|
|
const subrequestOption = subrequestOptionsLookup[index];
|
|
const responseType = subrequestOption.type;
|
|
|
|
switch (responseType) {
|
|
case 'capabilities':
|
|
// capabilities are handled in handleCapabilities and are skipped here just to avoid the default case below
|
|
break;
|
|
case 'messages':
|
|
// this will also include deleted messages explicitly with `data: null` & edited messages with a new data field & react changes with data not existing
|
|
await handleMessagesResponseV4(subResponse.body, serverUrl, subrequestOption);
|
|
break;
|
|
case 'pollInfo':
|
|
await handlePollInfoResponse(subResponse.code, subResponse.body, serverUrl);
|
|
|
|
break;
|
|
case 'inbox':
|
|
await handleInboxOutboxMessages(subResponse.body, serverUrl, false);
|
|
break;
|
|
case 'outbox':
|
|
await handleInboxOutboxMessages(subResponse.body, serverUrl, true);
|
|
break;
|
|
|
|
case 'addRemoveModerators':
|
|
case 'deleteMessage':
|
|
case 'banUnbanUser':
|
|
case 'deleteAllPosts':
|
|
case 'updateRoom':
|
|
case 'deleteReaction':
|
|
// we do nothing for all of those, but let's make sure if we ever add something batch polled for, we include it's handling here.
|
|
// the assertUnreachable will fail to compile every time we add a new batch poll endpoint without taking care of it.
|
|
break;
|
|
default:
|
|
assertUnreachable(
|
|
responseType,
|
|
`No matching subrequest response body for type: "${responseType}"`
|
|
);
|
|
}
|
|
}
|
|
}
|
|
};
|