431 lines
14 KiB
TypeScript
431 lines
14 KiB
TypeScript
// Copyright 2021 Signal Messenger, LLC
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// SPDX-License-Identifier: AGPL-3.0-only
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import { render, unmountComponentAtNode } from 'react-dom';
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import type { ConversationAttributesType } from '../model-types.d';
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import type { ConversationModel } from '../models/conversations';
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import type { PreJoinConversationType } from '../state/ducks/conversations';
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import * as Bytes from '../Bytes';
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import * as Errors from '../types/errors';
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import * as log from '../logging/log';
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import { HTTPError } from '../textsecure/Errors';
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import { SignalService as Proto } from '../protobuf';
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import { ToastType } from '../types/Toast';
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import {
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applyNewAvatar,
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decryptGroupDescription,
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decryptGroupTitle,
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deriveGroupFields,
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getPreJoinGroupInfo,
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idForLogging,
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LINK_VERSION_ERROR,
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parseGroupLink,
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} from '../groups';
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import { createGroupV2JoinModal } from '../state/roots/createGroupV2JoinModal';
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import { explodePromise } from '../util/explodePromise';
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import { isAccessControlEnabled } from './util';
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import { isGroupV1 } from '../util/whatTypeOfConversation';
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import { longRunningTaskWrapper } from '../util/longRunningTaskWrapper';
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import { sleep } from '../util/sleep';
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import { dropNull } from '../util/dropNull';
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export async function joinViaLink(value: string): Promise<void> {
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let inviteLinkPassword: string;
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let masterKey: string;
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try {
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({ inviteLinkPassword, masterKey } = parseGroupLink(value));
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} catch (error: unknown) {
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const errorString = Errors.toLogFormat(error);
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log.error(`joinViaLink: Failed to parse group link ${errorString}`);
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if (error instanceof Error && error.name === LINK_VERSION_ERROR) {
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window.reduxActions.globalModals.showErrorModal({
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description: window.i18n('icu:GroupV2--join--unknown-link-version'),
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title: window.i18n('icu:GroupV2--join--unknown-link-version--title'),
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});
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} else {
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window.reduxActions.globalModals.showErrorModal({
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description: window.i18n('icu:GroupV2--join--invalid-link'),
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title: window.i18n('icu:GroupV2--join--invalid-link--title'),
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});
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}
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return;
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}
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const data = deriveGroupFields(Bytes.fromBase64(masterKey));
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const id = Bytes.toBase64(data.id);
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const logId = `groupv2(${id})`;
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const secretParams = Bytes.toBase64(data.secretParams);
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const publicParams = Bytes.toBase64(data.publicParams);
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const existingConversation =
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window.ConversationController.get(id) ||
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window.ConversationController.getByDerivedGroupV2Id(id);
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const ourAci = window.textsecure.storage.user.getCheckedAci();
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if (existingConversation && existingConversation.hasMember(ourAci)) {
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log.warn(
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`joinViaLink/${logId}: Already a member of group, opening conversation`
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);
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window.reduxActions.conversations.showConversation({
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conversationId: existingConversation.id,
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});
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window.reduxActions.toast.showToast({
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toastType: ToastType.AlreadyGroupMember,
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});
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return;
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}
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let result: Proto.GroupJoinInfo;
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try {
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result = await longRunningTaskWrapper({
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name: 'getPreJoinGroupInfo',
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idForLogging: idForLogging(id),
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// If an error happens here, we won't show a dialog. We'll rely on the catch a few
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// lines below.
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suppressErrorDialog: true,
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task: () => getPreJoinGroupInfo(inviteLinkPassword, masterKey),
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});
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} catch (error: unknown) {
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const errorString = Errors.toLogFormat(error);
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log.error(
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`joinViaLink/${logId}: Failed to fetch group info - ${errorString}`
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);
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if (
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error instanceof HTTPError &&
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error.responseHeaders['x-signal-forbidden-reason']
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) {
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window.reduxActions.globalModals.showErrorModal({
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description: window.i18n('icu:GroupV2--join--link-forbidden'),
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title: window.i18n('icu:GroupV2--join--link-forbidden--title'),
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});
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} else if (error instanceof HTTPError && error.code === 403) {
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window.reduxActions.globalModals.showErrorModal({
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description: window.i18n('icu:GroupV2--join--link-revoked'),
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title: window.i18n('icu:GroupV2--join--link-revoked--title'),
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});
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} else {
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window.reduxActions.globalModals.showErrorModal({
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description: window.i18n('icu:GroupV2--join--general-join-failure'),
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title: window.i18n('icu:GroupV2--join--general-join-failure--title'),
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});
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}
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return;
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}
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if (!isAccessControlEnabled(dropNull(result.addFromInviteLink))) {
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log.error(
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`joinViaLink/${logId}: addFromInviteLink value of ${result.addFromInviteLink} is invalid`
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);
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window.reduxActions.globalModals.showErrorModal({
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description: window.i18n('icu:GroupV2--join--link-revoked'),
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title: window.i18n('icu:GroupV2--join--link-revoked--title'),
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});
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return;
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}
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let localAvatar:
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| {
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loading?: boolean;
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path?: string;
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}
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| undefined = result.avatar ? { loading: true } : undefined;
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const memberCount = result.memberCount || 1;
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const approvalRequired =
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result.addFromInviteLink ===
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Proto.AccessControl.AccessRequired.ADMINISTRATOR;
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const title =
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decryptGroupTitle(dropNull(result.title), secretParams) ||
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window.i18n('icu:unknownGroup');
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const groupDescription = decryptGroupDescription(
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dropNull(result.descriptionBytes),
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secretParams
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);
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if (
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approvalRequired &&
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existingConversation &&
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existingConversation.isMemberAwaitingApproval(ourAci)
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) {
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log.warn(
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`joinViaLink/${logId}: Already awaiting approval, opening conversation`
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);
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const timestamp = existingConversation.get('timestamp') || Date.now();
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// eslint-disable-next-line camelcase
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const active_at = existingConversation.get('active_at') || Date.now();
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// eslint-disable-next-line camelcase
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existingConversation.set({ active_at, timestamp });
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window.Signal.Data.updateConversation(existingConversation.attributes);
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// We're waiting for the left pane to re-sort before we navigate to that conversation
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await sleep(200);
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window.reduxActions.conversations.showConversation({
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conversationId: existingConversation.id,
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});
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window.reduxActions.toast.showToast({
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toastType: ToastType.AlreadyRequestedToJoin,
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});
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return;
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}
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const getPreJoinConversation = (): PreJoinConversationType => {
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let avatar;
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if (!localAvatar) {
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avatar = undefined;
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} else if (localAvatar && localAvatar.loading) {
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avatar = {
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loading: true,
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};
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} else if (localAvatar && localAvatar.path) {
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avatar = {
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url: window.Signal.Migrations.getAbsoluteAttachmentPath(
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localAvatar.path
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),
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};
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}
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return {
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approvalRequired,
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avatar,
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groupDescription,
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memberCount,
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title,
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};
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};
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// Explode a promise so we know when this whole join process is complete
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const { promise, resolve, reject } = explodePromise<void>();
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const closeDialog = async () => {
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try {
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if (groupV2InfoNode) {
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unmountComponentAtNode(groupV2InfoNode);
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groupV2InfoNode = undefined;
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}
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window.reduxActions.conversations.setPreJoinConversation(undefined);
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if (localAvatar && localAvatar.path) {
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await window.Signal.Migrations.deleteAttachmentData(localAvatar.path);
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}
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resolve();
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} catch (error) {
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reject(error);
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}
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};
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const join = async () => {
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try {
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if (groupV2InfoNode) {
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unmountComponentAtNode(groupV2InfoNode);
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groupV2InfoNode = undefined;
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}
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window.reduxActions.conversations.setPreJoinConversation(undefined);
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await longRunningTaskWrapper({
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name: 'joinViaLink',
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idForLogging: idForLogging(id),
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// If an error happens here, we won't show a dialog. We'll rely on a top-level
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// error dialog provided by the caller of this function.
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suppressErrorDialog: true,
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task: async () => {
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let targetConversation =
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existingConversation ||
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window.ConversationController.get(id) ||
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window.ConversationController.getByDerivedGroupV2Id(id);
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let tempConversation: ConversationModel | undefined;
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// Check again to ensure that we haven't already joined or requested to join
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// via some other process. If so, just open that conversation.
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if (
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targetConversation &&
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(targetConversation.hasMember(ourAci) ||
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(approvalRequired &&
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targetConversation.isMemberAwaitingApproval(ourAci)))
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) {
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log.warn(
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`joinViaLink/${logId}: User is part of group on second check, opening conversation`
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);
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window.reduxActions.conversations.showConversation({
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conversationId: targetConversation.id,
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});
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return;
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}
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try {
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if (!targetConversation) {
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// Note: we save this temp conversation in the database, so we'll need to
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// clean it up if something goes wrong
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tempConversation = window.ConversationController.getOrCreate(
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id,
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'group',
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{
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// This will cause this conversation to be deleted at next startup
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isTemporary: true,
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active_at: Date.now(),
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timestamp: Date.now(),
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groupVersion: 2,
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masterKey,
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secretParams,
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publicParams,
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left: true,
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revision: result.version,
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avatar:
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localAvatar && localAvatar.path && result.avatar
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? {
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url: result.avatar,
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path: localAvatar.path,
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}
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: undefined,
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description: groupDescription,
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groupInviteLinkPassword: inviteLinkPassword,
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name: title,
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temporaryMemberCount: memberCount,
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}
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);
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targetConversation = tempConversation;
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} else {
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// Ensure the group maintains the title and avatar you saw when attempting
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// to join it.
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const timestamp =
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targetConversation.get('timestamp') || Date.now();
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// eslint-disable-next-line camelcase
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const active_at =
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targetConversation.get('active_at') || Date.now();
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targetConversation.set({
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// eslint-disable-next-line camelcase
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active_at,
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avatar:
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localAvatar && localAvatar.path && result.avatar
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? {
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url: result.avatar,
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path: localAvatar.path,
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}
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: undefined,
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description: groupDescription,
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groupInviteLinkPassword: inviteLinkPassword,
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left: true,
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name: title,
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revision: dropNull(result.version),
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temporaryMemberCount: memberCount,
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timestamp,
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});
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window.Signal.Data.updateConversation(
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targetConversation.attributes
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);
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}
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if (isGroupV1(targetConversation.attributes)) {
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await targetConversation.joinGroupV2ViaLinkAndMigrate({
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approvalRequired,
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inviteLinkPassword,
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revision: result.version || 0,
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});
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} else {
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await targetConversation.joinGroupV2ViaLink({
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inviteLinkPassword,
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approvalRequired,
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});
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}
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if (tempConversation) {
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tempConversation.set({
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// We want to keep this conversation around, since the join succeeded
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isTemporary: undefined,
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});
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window.Signal.Data.updateConversation(
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tempConversation.attributes
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);
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}
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window.reduxActions.conversations.showConversation({
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conversationId: targetConversation.id,
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});
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} catch (error) {
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// Delete newly-created conversation if we encountered any errors
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if (tempConversation) {
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window.ConversationController.dangerouslyRemoveById(
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tempConversation.id
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);
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await window.Signal.Data.removeConversation(tempConversation.id);
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}
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throw error;
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}
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},
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});
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resolve();
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} catch (error) {
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reject(error);
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}
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};
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// Initial add to redux, with basic group information
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window.reduxActions.conversations.setPreJoinConversation(
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getPreJoinConversation()
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);
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log.info(`joinViaLink/${logId}: Showing modal`);
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let groupV2InfoNode: HTMLDivElement | undefined =
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document.createElement('div');
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render(
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createGroupV2JoinModal(window.reduxStore, { join, onClose: closeDialog }),
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groupV2InfoNode
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);
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// We declare a new function here so we can await but not block
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const fetchAvatar = async () => {
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if (result.avatar) {
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localAvatar = {
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loading: true,
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};
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const attributes: Pick<
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ConversationAttributesType,
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'avatar' | 'secretParams'
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> = {
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avatar: null,
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secretParams,
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};
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await applyNewAvatar(result.avatar, attributes, logId);
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if (attributes.avatar && attributes.avatar.path) {
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localAvatar = {
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path: attributes.avatar.path,
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};
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// Dialog has been dismissed; we'll delete the unneeeded avatar
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if (!groupV2InfoNode) {
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await window.Signal.Migrations.deleteAttachmentData(
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attributes.avatar.path
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);
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return;
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}
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} else {
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localAvatar = undefined;
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}
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// Update join dialog with newly-downloaded avatar
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window.reduxActions.conversations.setPreJoinConversation(
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getPreJoinConversation()
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);
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}
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};
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void fetchAvatar();
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await promise;
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}
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