227 lines
9.5 KiB
JavaScript
227 lines
9.5 KiB
JavaScript
/*
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Copyright 2020 The Matrix.org Foundation C.I.C.
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Licensed under the Apache License, Version 2.0 (the "License");
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you may not use this file except in compliance with the License.
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You may obtain a copy of the License at
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http://www.apache.org/licenses/LICENSE-2.0
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Unless required by applicable law or agreed to in writing, software
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distributed under the License is distributed on an "AS IS" BASIS,
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WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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See the License for the specific language governing permissions and
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limitations under the License.
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*/
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import { MatrixClientPeg } from './MatrixClientPeg';
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import SettingsStore from './settings/SettingsStore';
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import * as sdk from './index';
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import { _t } from './languageHandler';
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import ToastStore from './stores/ToastStore';
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const KEY_BACKUP_POLL_INTERVAL = 5 * 60 * 1000;
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const THIS_DEVICE_TOAST_KEY = 'setupencryption';
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const OTHER_DEVICES_TOAST_KEY = 'reviewsessions';
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export default class DeviceListener {
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static sharedInstance() {
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if (!global.mx_DeviceListener) global.mx_DeviceListener = new DeviceListener();
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return global.mx_DeviceListener;
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}
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constructor() {
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// device IDs for which the user has dismissed the verify toast ('Later')
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this._dismissed = new Set();
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// has the user dismissed any of the various nag toasts to setup encryption on this device?
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this._dismissedThisDeviceToast = false;
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// cache of the key backup info
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this._keyBackupInfo = null;
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this._keyBackupFetchedAt = null;
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}
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start() {
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MatrixClientPeg.get().on('crypto.devicesUpdated', this._onDevicesUpdated);
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MatrixClientPeg.get().on('deviceVerificationChanged', this._onDeviceVerificationChanged);
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MatrixClientPeg.get().on('userTrustStatusChanged', this._onUserTrustStatusChanged);
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MatrixClientPeg.get().on('crossSigning.keysChanged', this._onCrossSingingKeysChanged);
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MatrixClientPeg.get().on('accountData', this._onAccountData);
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MatrixClientPeg.get().on('sync', this._onSync);
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this._recheck();
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}
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stop() {
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if (MatrixClientPeg.get()) {
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MatrixClientPeg.get().removeListener('crypto.devicesUpdated', this._onDevicesUpdated);
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MatrixClientPeg.get().removeListener('deviceVerificationChanged', this._onDeviceVerificationChanged);
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MatrixClientPeg.get().removeListener('userTrustStatusChanged', this._onUserTrustStatusChanged);
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MatrixClientPeg.get().removeListener('crossSigning.keysChanged', this._onCrossSingingKeysChanged);
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MatrixClientPeg.get().removeListener('accountData', this._onAccountData);
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MatrixClientPeg.get().removeListener('sync', this._onSync);
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}
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this._dismissed.clear();
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this._dismissedThisDeviceToast = false;
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this._keyBackupInfo = null;
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this._keyBackupFetchedAt = null;
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}
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async dismissVerifications() {
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const cli = MatrixClientPeg.get();
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const devices = await cli.getStoredDevicesForUser(cli.getUserId());
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this._dismissed = new Set(devices.filter(d => d.deviceId !== cli.deviceId).map(d => d.deviceId));
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this._recheck();
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}
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dismissEncryptionSetup() {
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this._dismissedThisDeviceToast = true;
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this._recheck();
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}
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_onDevicesUpdated = (users) => {
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if (!users.includes(MatrixClientPeg.get().getUserId())) return;
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this._recheck();
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}
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_onDeviceVerificationChanged = (userId) => {
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if (userId !== MatrixClientPeg.get().getUserId()) return;
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this._recheck();
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}
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_onUserTrustStatusChanged = (userId, trustLevel) => {
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if (userId !== MatrixClientPeg.get().getUserId()) return;
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this._recheck();
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}
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_onCrossSingingKeysChanged = () => {
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this._recheck();
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}
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_onAccountData = (ev) => {
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// User may have:
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// * migrated SSSS to symmetric
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// * uploaded keys to secret storage
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// * completed secret storage creation
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// which result in account data changes affecting checks below.
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if (
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ev.getType().startsWith('m.secret_storage.') ||
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ev.getType().startsWith('m.cross_signing.')
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) {
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this._recheck();
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}
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}
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_onSync = (state, prevState) => {
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if (state === 'PREPARED' && prevState === null) this._recheck();
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}
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// The server doesn't tell us when key backup is set up, so we poll
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// & cache the result
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async _getKeyBackupInfo() {
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const now = (new Date()).getTime();
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if (!this._keyBackupInfo || this._keyBackupFetchedAt < now - KEY_BACKUP_POLL_INTERVAL) {
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this._keyBackupInfo = await MatrixClientPeg.get().getKeyBackupVersion();
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this._keyBackupFetchedAt = now;
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}
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return this._keyBackupInfo;
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}
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async _recheck() {
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const cli = MatrixClientPeg.get();
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if (
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!SettingsStore.getValue("feature_cross_signing") ||
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!await cli.doesServerSupportUnstableFeature("org.matrix.e2e_cross_signing")
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) return;
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if (!cli.isCryptoEnabled()) return;
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// don't recheck until the initial sync is complete: lots of account data events will fire
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// while the initial sync is processing and we don't need to recheck on each one of them
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// (we add a listener on sync to do once check after the initial sync is done)
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if (!cli.isInitialSyncComplete()) return;
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const crossSigningReady = await cli.isCrossSigningReady();
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if (this._dismissedThisDeviceToast) {
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ToastStore.sharedInstance().dismissToast(THIS_DEVICE_TOAST_KEY);
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} else {
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if (!crossSigningReady) {
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// make sure our keys are finished downlaoding
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await cli.downloadKeys([cli.getUserId()]);
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// cross signing isn't enabled - nag to enable it
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// There are 3 different toasts for:
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if (cli.getStoredCrossSigningForUser(cli.getUserId())) {
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// Cross-signing on account but this device doesn't trust the master key (verify this session)
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ToastStore.sharedInstance().addOrReplaceToast({
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key: THIS_DEVICE_TOAST_KEY,
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title: _t("Verify this session"),
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icon: "verification_warning",
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props: {kind: 'verify_this_session'},
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component: sdk.getComponent("toasts.SetupEncryptionToast"),
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});
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} else {
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const backupInfo = await this._getKeyBackupInfo();
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if (backupInfo) {
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// No cross-signing on account but key backup available (upgrade encryption)
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ToastStore.sharedInstance().addOrReplaceToast({
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key: THIS_DEVICE_TOAST_KEY,
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title: _t("Encryption upgrade available"),
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icon: "verification_warning",
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props: {kind: 'upgrade_encryption'},
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component: sdk.getComponent("toasts.SetupEncryptionToast"),
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});
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} else {
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// No cross-signing or key backup on account (set up encryption)
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ToastStore.sharedInstance().addOrReplaceToast({
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key: THIS_DEVICE_TOAST_KEY,
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title: _t("Set up encryption"),
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icon: "verification_warning",
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props: {kind: 'set_up_encryption'},
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component: sdk.getComponent("toasts.SetupEncryptionToast"),
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});
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}
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}
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return;
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} else if (await cli.secretStorageKeyNeedsUpgrade()) {
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ToastStore.sharedInstance().addOrReplaceToast({
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key: THIS_DEVICE_TOAST_KEY,
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title: _t("Encryption upgrade available"),
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icon: "verification_warning",
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props: {kind: 'upgrade_ssss'},
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component: sdk.getComponent("toasts.SetupEncryptionToast"),
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});
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} else {
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// cross-signing is ready, and we don't need to upgrade encryption
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ToastStore.sharedInstance().dismissToast(THIS_DEVICE_TOAST_KEY);
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}
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}
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// as long as cross-signing isn't ready,
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// you can't see or dismiss any device toasts
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if (crossSigningReady) {
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const unverifiedDeviceIds = new Set();
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const devices = await cli.getStoredDevicesForUser(cli.getUserId());
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for (const device of devices) {
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if (device.deviceId == cli.deviceId) continue;
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const deviceTrust = await cli.checkDeviceTrust(cli.getUserId(), device.deviceId);
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if (!deviceTrust.isCrossSigningVerified() && !this._dismissed.has(device.deviceId)) {
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unverifiedDeviceIds.add(device.deviceId);
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}
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}
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if (unverifiedDeviceIds.size > 0) {
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ToastStore.sharedInstance().addOrReplaceToast({
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key: OTHER_DEVICES_TOAST_KEY,
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title: _t("Review where you’re logged in"),
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icon: "verification_warning",
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component: sdk.getComponent("toasts.UnverifiedSessionToast"),
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});
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} else {
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ToastStore.sharedInstance().dismissToast(OTHER_DEVICES_TOAST_KEY);
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}
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}
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}
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}
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