1286 lines
56 KiB
JavaScript
1286 lines
56 KiB
JavaScript
/**
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* @module converse-omemo
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* @copyright The Converse.js contributors
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* @license Mozilla Public License (MPLv2)
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*/
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/* global libsignal */
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import "converse-profile";
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import { Collection } from "skeletor.js/src/collection";
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import { Model } from 'skeletor.js/src/model.js';
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import { concat, debounce, difference, invokeMap, range, omit } from "lodash";
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import { converse } from "@converse/headless/converse-core";
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import log from "@converse/headless/log";
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import tpl_toolbar_omemo from "templates/toolbar_omemo.html";
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const { Strophe, sizzle, $build, $iq, $msg } = converse.env;
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const u = converse.env.utils;
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Strophe.addNamespace('OMEMO_DEVICELIST', Strophe.NS.OMEMO+".devicelist");
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Strophe.addNamespace('OMEMO_VERIFICATION', Strophe.NS.OMEMO+".verification");
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Strophe.addNamespace('OMEMO_WHITELISTED', Strophe.NS.OMEMO+".whitelisted");
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Strophe.addNamespace('OMEMO_BUNDLES', Strophe.NS.OMEMO+".bundles");
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const UNDECIDED = 0;
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const TRUSTED = 1; // eslint-disable-line no-unused-vars
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const UNTRUSTED = -1;
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const TAG_LENGTH = 128;
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const KEY_ALGO = {
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'name': "AES-GCM",
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'length': 128
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};
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class IQError extends Error {
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constructor (message, iq) {
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super(message, iq);
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this.name = 'IQError';
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this.iq = iq;
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}
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}
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function parseBundle (bundle_el) {
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/* Given an XML element representing a user's OMEMO bundle, parse it
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* and return a map.
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*/
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const signed_prekey_public_el = bundle_el.querySelector('signedPreKeyPublic');
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const signed_prekey_signature_el = bundle_el.querySelector('signedPreKeySignature');
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const prekeys = sizzle(`prekeys > preKeyPublic`, bundle_el)
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.map(el => ({
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'id': parseInt(el.getAttribute('preKeyId'), 10),
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'key': el.textContent
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}));
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return {
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'identity_key': bundle_el.querySelector('identityKey').textContent.trim(),
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'signed_prekey': {
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'id': parseInt(signed_prekey_public_el.getAttribute('signedPreKeyId'), 10),
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'public_key': signed_prekey_public_el.textContent,
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'signature': signed_prekey_signature_el.textContent
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},
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'prekeys': prekeys
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}
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}
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converse.plugins.add('converse-omemo', {
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enabled (_converse) {
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return window.libsignal && !_converse.api.settings.get("blacklisted_plugins").includes('converse-omemo') && _converse.config.get('trusted');
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},
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dependencies: ["converse-chatview", "converse-pubsub", "converse-profile"],
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overrides: {
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ProfileModal: {
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events: {
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'change input.select-all': 'selectAll',
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'click .generate-bundle': 'generateOMEMODeviceBundle',
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'submit .fingerprint-removal': 'removeSelectedFingerprints'
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},
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initialize () {
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const { _converse } = this.__super__;
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this.debouncedRender = debounce(this.render, 50);
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this.devicelist = _converse.devicelists.get(_converse.bare_jid);
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this.listenTo(this.devicelist.devices, 'change:bundle', this.debouncedRender);
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this.listenTo(this.devicelist.devices, 'reset', this.debouncedRender);
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this.listenTo(this.devicelist.devices, 'reset', this.debouncedRender);
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this.listenTo(this.devicelist.devices, 'remove', this.debouncedRender);
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this.listenTo(this.devicelist.devices, 'add', this.debouncedRender);
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return this.__super__.initialize.apply(this, arguments);
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},
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beforeRender () {
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const { _converse } = this.__super__,
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device_id = _converse.omemo_store.get('device_id');
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if (device_id) {
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this.current_device = this.devicelist.devices.get(device_id);
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}
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this.other_devices = this.devicelist.devices.filter(d => (d.get('id') !== device_id));
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if (this.__super__.beforeRender) {
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return this.__super__.beforeRender.apply(this, arguments);
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}
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},
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selectAll (ev) {
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let sibling = u.ancestor(ev.target, 'li');
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while (sibling) {
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sibling.querySelector('input[type="checkbox"]').checked = ev.target.checked;
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sibling = sibling.nextElementSibling;
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}
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},
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removeSelectedFingerprints (ev) {
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ev.preventDefault();
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ev.stopPropagation();
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ev.target.querySelector('.select-all').checked = false
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const device_ids = sizzle('.fingerprint-removal-item input[type="checkbox"]:checked', ev.target).map(c => c.value);
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this.devicelist.removeOwnDevices(device_ids)
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.then(this.modal.hide)
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.catch(err => {
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const { _converse } = this.__super__,
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{ __ } = _converse;
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log.error(err);
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_converse.api.alert(
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Strophe.LogLevel.ERROR,
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__('Error'), [__('Sorry, an error occurred while trying to remove the devices.')]
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)
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});
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},
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generateOMEMODeviceBundle (ev) {
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const { _converse } = this.__super__,
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{ __, api } = _converse;
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ev.preventDefault();
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if (confirm(__(
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"Are you sure you want to generate new OMEMO keys? " +
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"This will remove your old keys and all previously encrypted messages will no longer be decryptable on this device.")
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)) {
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api.omemo.bundle.generate();
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}
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}
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},
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UserDetailsModal: {
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events: {
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'click .fingerprint-trust .btn input': 'toggleDeviceTrust'
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},
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initialize () {
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const { _converse } = this.__super__;
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const jid = this.model.get('jid');
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this.devicelist = _converse.devicelists.getDeviceList(jid);
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this.listenTo(this.devicelist.devices, 'change:bundle', this.render);
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this.listenTo(this.devicelist.devices, 'change:trusted', this.render);
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this.listenTo(this.devicelist.devices, 'remove', this.render);
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this.listenTo(this.devicelist.devices, 'add', this.render);
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this.listenTo(this.devicelist.devices, 'reset', this.render);
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return this.__super__.initialize.apply(this, arguments);
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},
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toggleDeviceTrust (ev) {
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const radio = ev.target;
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const device = this.devicelist.devices.get(radio.getAttribute('name'));
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device.save('trusted', parseInt(radio.value, 10));
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}
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},
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ChatBox: {
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async sendMessage (text, spoiler_hint) {
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if (this.get('omemo_active') && text) {
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const { _converse } = this.__super__;
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const attrs = this.getOutgoingMessageAttributes(text, spoiler_hint);
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attrs['is_encrypted'] = true;
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attrs['plaintext'] = attrs.message;
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let message, stanza;
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try {
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const devices = await _converse.getBundlesAndBuildSessions(this);
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message = await this.createMessage(attrs);
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stanza = await _converse.createOMEMOMessageStanza(this, message, devices);
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} catch (e) {
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this.handleMessageSendError(e);
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return null;
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}
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_converse.api.send(stanza);
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return message;
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} else {
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return this.__super__.sendMessage.apply(this, arguments);
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}
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}
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},
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ChatBoxView: {
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events: {
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'click .toggle-omemo': 'toggleOMEMO'
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},
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initialize () {
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this.__super__.initialize.apply(this, arguments);
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this.listenTo(this.model, 'change:omemo_active', this.renderOMEMOToolbarButton);
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this.listenTo(this.model, 'change:omemo_supported', this.onOMEMOSupportedDetermined);
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},
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showMessage (message) {
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// We don't show a message if it's only keying material
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if (!message.get('is_only_key')) {
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return this.__super__.showMessage.apply(this, arguments);
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}
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}
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},
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ChatRoomView: {
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events: {
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'click .toggle-omemo': 'toggleOMEMO'
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},
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initialize () {
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this.__super__.initialize.apply(this, arguments);
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this.listenTo(this.model, 'change:omemo_active', this.renderOMEMOToolbarButton);
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this.listenTo(this.model, 'change:omemo_supported', this.onOMEMOSupportedDetermined);
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}
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}
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},
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initialize () {
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/* The initialize function gets called as soon as the plugin is
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* loaded by Converse.js's plugin machinery.
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*/
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const { _converse } = this;
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const { __ } = _converse;
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const { api } = _converse;
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api.settings.update({
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'omemo_default': false,
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});
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api.promises.add(['OMEMOInitialized']);
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_converse.NUM_PREKEYS = 100; // Set here so that tests can override
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/**
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* Mixin object that contains OMEMO-related methods for
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* {@link _converse.ChatBox} or {@link _converse.ChatRoom} objects.
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*
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* @typedef {Object} OMEMOEnabledChatBox
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*/
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const OMEMOEnabledChatBox = {
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async encryptMessage (plaintext) {
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// The client MUST use fresh, randomly generated key/IV pairs
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// with AES-128 in Galois/Counter Mode (GCM).
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// For GCM a 12 byte IV is strongly suggested as other IV lengths
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// will require additional calculations. In principle any IV size
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// can be used as long as the IV doesn't ever repeat. NIST however
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// suggests that only an IV size of 12 bytes needs to be supported
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// by implementations.
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//
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// https://crypto.stackexchange.com/questions/26783/ciphertext-and-tag-size-and-iv-transmission-with-aes-in-gcm-mode
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const iv = crypto.getRandomValues(new window.Uint8Array(12)),
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key = await crypto.subtle.generateKey(KEY_ALGO, true, ["encrypt", "decrypt"]),
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algo = {
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'name': 'AES-GCM',
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'iv': iv,
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'tagLength': TAG_LENGTH
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},
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encrypted = await crypto.subtle.encrypt(algo, key, u.stringToArrayBuffer(plaintext)),
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length = encrypted.byteLength - ((128 + 7) >> 3),
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ciphertext = encrypted.slice(0, length),
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tag = encrypted.slice(length),
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exported_key = await crypto.subtle.exportKey("raw", key);
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return Promise.resolve({
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'key': exported_key,
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'tag': tag,
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'key_and_tag': u.appendArrayBuffer(exported_key, tag),
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'payload': u.arrayBufferToBase64(ciphertext),
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'iv': u.arrayBufferToBase64(iv)
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});
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},
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async decryptMessage (obj) {
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const key_obj = await crypto.subtle.importKey('raw', obj.key, KEY_ALGO, true, ['encrypt','decrypt']);
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const cipher = u.appendArrayBuffer(u.base64ToArrayBuffer(obj.payload), obj.tag);
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const algo = {
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'name': "AES-GCM",
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'iv': u.base64ToArrayBuffer(obj.iv),
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'tagLength': TAG_LENGTH
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};
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return u.arrayBufferToString(await crypto.subtle.decrypt(algo, key_obj, cipher));
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},
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reportDecryptionError (e) {
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if (api.settings.get("loglevel") === 'debug') {
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const { __ } = _converse;
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this.createMessage({
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'message': __("Sorry, could not decrypt a received OMEMO message due to an error.") + ` ${e.name} ${e.message}`,
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'type': 'error',
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});
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}
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log.error(`${e.name} ${e.message}`);
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},
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async handleDecryptedWhisperMessage (attrs, key_and_tag) {
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const encrypted = attrs.encrypted;
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const devicelist = _converse.devicelists.getDeviceList(this.get('jid'));
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await devicelist._devices_promise;
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this.save('omemo_supported', true);
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let device = devicelist.get(encrypted.device_id);
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if (!device) {
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device = await devicelist.devices.create({'id': encrypted.device_id, 'jid': attrs.from}, {'promise': true});
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}
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if (encrypted.payload) {
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const key = key_and_tag.slice(0, 16);
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const tag = key_and_tag.slice(16);
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const result = await this.decryptMessage(Object.assign(encrypted, {'key': key, 'tag': tag}));
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device.save('active', true);
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return result;
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}
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},
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async decrypt (attrs) {
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const session_cipher = this.getSessionCipher(attrs.from, parseInt(attrs.encrypted.device_id, 10));
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// https://xmpp.org/extensions/xep-0384.html#usecases-receiving
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const key = u.base64ToArrayBuffer(attrs.encrypted.key);
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if (attrs.encrypted.prekey === true) {
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try {
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const key_and_tag = await session_cipher.decryptPreKeyWhisperMessage(key, 'binary');
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const plaintext = await this.handleDecryptedWhisperMessage(attrs, key_and_tag);
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await _converse.omemo_store.generateMissingPreKeys();
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await _converse.omemo_store.publishBundle();
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if (plaintext) {
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return Object.assign(attrs, {'plaintext': plaintext});
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} else {
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return Object.assign(attrs, {'is_only_key': true});
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}
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} catch (e) {
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this.reportDecryptionError(e);
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return attrs;
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}
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} else {
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try {
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const key_and_tag = await session_cipher.decryptWhisperMessage(key, 'binary')
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const plaintext = await this.handleDecryptedWhisperMessage(attrs, key_and_tag);
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return Object.assign(attrs, {'plaintext': plaintext});
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} catch (e) {
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this.reportDecryptionError(e);
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return attrs;
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}
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}
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},
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getSessionCipher (jid, id) {
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const address = new libsignal.SignalProtocolAddress(jid, id);
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this.session_cipher = new window.libsignal.SessionCipher(_converse.omemo_store, address);
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return this.session_cipher;
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},
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encryptKey (plaintext, device) {
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return this.getSessionCipher(device.get('jid'), device.get('id'))
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.encrypt(plaintext)
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.then(payload => ({'payload': payload, 'device': device}));
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},
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handleMessageSendError (e) {
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if (e.name === 'IQError') {
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this.save('omemo_supported', false);
|
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const err_msgs = [];
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if (sizzle(`presence-subscription-required[xmlns="${Strophe.NS.PUBSUB_ERROR}"]`, e.iq).length) {
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err_msgs.push(__("Sorry, we're unable to send an encrypted message because %1$s "+
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"requires you to be subscribed to their presence in order to see their OMEMO information",
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e.iq.getAttribute('from')));
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} else if (sizzle(`remote-server-not-found[xmlns="urn:ietf:params:xml:ns:xmpp-stanzas"]`, e.iq).length) {
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err_msgs.push(__("Sorry, we're unable to send an encrypted message because the remote server for %1$s could not be found",
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e.iq.getAttribute('from')));
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} else {
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err_msgs.push(__("Unable to send an encrypted message due to an unexpected error."));
|
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err_msgs.push(e.iq.outerHTML);
|
||
}
|
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api.alert('error', __('Error'), err_msgs);
|
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log.error(e);
|
||
} else if (e.user_facing) {
|
||
api.alert('error', __('Error'), [e.message]);
|
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log.error(e);
|
||
} else {
|
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throw e;
|
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}
|
||
}
|
||
}
|
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Object.assign(_converse.ChatBox.prototype, OMEMOEnabledChatBox);
|
||
|
||
|
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const OMEMOEnabledChatView = {
|
||
|
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onOMEMOSupportedDetermined () {
|
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if (!this.model.get('omemo_supported') && this.model.get('omemo_active')) {
|
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this.model.set('omemo_active', false); // Will cause render
|
||
} else {
|
||
this.renderOMEMOToolbarButton();
|
||
}
|
||
},
|
||
|
||
renderOMEMOToolbarButton () {
|
||
if (this.model.get('type') !== _converse.CHATROOMS_TYPE ||
|
||
this.model.features.get('membersonly') &&
|
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this.model.features.get('nonanonymous')) {
|
||
|
||
const icon = this.el.querySelector('.toggle-omemo');
|
||
const html = tpl_toolbar_omemo(Object.assign(this.model.toJSON(), {'__': __}));
|
||
if (icon) {
|
||
icon.outerHTML = html;
|
||
} else {
|
||
this.el.querySelector('.chat-toolbar').insertAdjacentHTML('beforeend', html);
|
||
}
|
||
} else {
|
||
const icon = this.el.querySelector('.toggle-omemo');
|
||
if (icon) {
|
||
icon.parentElement.removeChild(icon);
|
||
}
|
||
}
|
||
},
|
||
|
||
toggleOMEMO (ev) {
|
||
if (!this.model.get('omemo_supported')) {
|
||
let messages;
|
||
if (this.model.get('type') === _converse.CHATROOMS_TYPE) {
|
||
messages = [__(
|
||
'Cannot use end-to-end encryption in this groupchat, '+
|
||
'either the groupchat has some anonymity or not all participants support OMEMO.'
|
||
)];
|
||
} else {
|
||
messages = [__(
|
||
"Cannot use end-to-end encryption because %1$s uses a client that doesn't support OMEMO.",
|
||
this.model.contact.getDisplayName()
|
||
)];
|
||
}
|
||
return api.alert('error', __('Error'), messages);
|
||
}
|
||
ev.preventDefault();
|
||
this.model.save({'omemo_active': !this.model.get('omemo_active')});
|
||
}
|
||
}
|
||
Object.assign(_converse.ChatBoxView.prototype, OMEMOEnabledChatView);
|
||
|
||
|
||
async function generateFingerprint (device) {
|
||
if (device.get('bundle')?.fingerprint) {
|
||
return;
|
||
}
|
||
const bundle = await device.getBundle();
|
||
bundle['fingerprint'] = u.arrayBufferToHex(u.base64ToArrayBuffer(bundle['identity_key']));
|
||
device.save('bundle', bundle);
|
||
device.trigger('change:bundle'); // Doesn't get triggered automatically due to pass-by-reference
|
||
}
|
||
|
||
_converse.generateFingerprints = async function (jid) {
|
||
const devices = await getDevicesForContact(jid)
|
||
return Promise.all(devices.map(d => generateFingerprint(d)));
|
||
}
|
||
|
||
_converse.getDeviceForContact = function (jid, device_id) {
|
||
return getDevicesForContact(jid).then(devices => devices.get(device_id));
|
||
}
|
||
|
||
async function getDevicesForContact (jid) {
|
||
await api.waitUntil('OMEMOInitialized');
|
||
const devicelist = _converse.devicelists.get(jid) || _converse.devicelists.create({'jid': jid});
|
||
await devicelist.fetchDevices();
|
||
return devicelist.devices;
|
||
}
|
||
|
||
_converse.contactHasOMEMOSupport = async function (jid) {
|
||
/* Checks whether the contact advertises any OMEMO-compatible devices. */
|
||
const devices = await getDevicesForContact(jid);
|
||
return devices.length > 0;
|
||
}
|
||
|
||
function generateDeviceID () {
|
||
/* Generates a device ID, making sure that it's unique */
|
||
const existing_ids = _converse.devicelists.get(_converse.bare_jid).devices.pluck('id');
|
||
let device_id = libsignal.KeyHelper.generateRegistrationId();
|
||
let i = 0;
|
||
while (existing_ids.includes(device_id)) {
|
||
device_id = libsignal.KeyHelper.generateRegistrationId();
|
||
i++;
|
||
if (i == 10) {
|
||
throw new Error("Unable to generate a unique device ID");
|
||
}
|
||
}
|
||
return device_id.toString();
|
||
}
|
||
|
||
async function buildSession (device) {
|
||
const address = new libsignal.SignalProtocolAddress(device.get('jid'), device.get('id')),
|
||
sessionBuilder = new libsignal.SessionBuilder(_converse.omemo_store, address),
|
||
prekey = device.getRandomPreKey(),
|
||
bundle = await device.getBundle();
|
||
|
||
return sessionBuilder.processPreKey({
|
||
'registrationId': parseInt(device.get('id'), 10),
|
||
'identityKey': u.base64ToArrayBuffer(bundle.identity_key),
|
||
'signedPreKey': {
|
||
'keyId': bundle.signed_prekey.id, // <Number>
|
||
'publicKey': u.base64ToArrayBuffer(bundle.signed_prekey.public_key),
|
||
'signature': u.base64ToArrayBuffer(bundle.signed_prekey.signature)
|
||
},
|
||
'preKey': {
|
||
'keyId': prekey.id, // <Number>
|
||
'publicKey': u.base64ToArrayBuffer(prekey.key),
|
||
}
|
||
});
|
||
}
|
||
|
||
async function getSession (device) {
|
||
const address = new libsignal.SignalProtocolAddress(device.get('jid'), device.get('id'));
|
||
const session = await _converse.omemo_store.loadSession(address.toString());
|
||
if (session) {
|
||
return Promise.resolve(session);
|
||
} else {
|
||
try {
|
||
const session = await buildSession(device);
|
||
return session;
|
||
} catch (e) {
|
||
log.error(`Could not build an OMEMO session for device ${device.get('id')}`);
|
||
log.error(e);
|
||
return null;
|
||
}
|
||
}
|
||
}
|
||
|
||
_converse.getBundlesAndBuildSessions = async function (chatbox) {
|
||
const no_devices_err = __("Sorry, no devices found to which we can send an OMEMO encrypted message.");
|
||
let devices;
|
||
if (chatbox.get('type') === _converse.CHATROOMS_TYPE) {
|
||
const collections = await Promise.all(chatbox.occupants.map(o => getDevicesForContact(o.get('jid'))));
|
||
devices = collections.reduce((a, b) => concat(a, b.models), []);
|
||
} else if (chatbox.get('type') === _converse.PRIVATE_CHAT_TYPE) {
|
||
const their_devices = await getDevicesForContact(chatbox.get('jid'));
|
||
if (their_devices.length === 0) {
|
||
const err = new Error(no_devices_err);
|
||
err.user_facing = true;
|
||
throw err;
|
||
}
|
||
const own_devices = _converse.devicelists.get(_converse.bare_jid).devices;
|
||
devices = [...own_devices.models, ...their_devices.models];
|
||
}
|
||
// Filter out our own device
|
||
const id = _converse.omemo_store.get('device_id');
|
||
devices = devices.filter(d => d.get('id') !== id);
|
||
|
||
await Promise.all(devices.map(d => d.getBundle()));
|
||
const sessions = await Promise.all(devices.map(d => getSession(d)));
|
||
if (sessions.includes(null)) {
|
||
// We couldn't build a session for certain devices.
|
||
devices = devices.filter(d => sessions[devices.indexOf(d)]);
|
||
if (devices.length === 0) {
|
||
const err = new Error(no_devices_err);
|
||
err.user_facing = true;
|
||
throw err;
|
||
}
|
||
}
|
||
return devices;
|
||
}
|
||
|
||
function addKeysToMessageStanza (stanza, dicts, iv) {
|
||
for (var i in dicts) {
|
||
if (Object.prototype.hasOwnProperty.call(dicts, i)) {
|
||
const payload = dicts[i].payload,
|
||
device = dicts[i].device,
|
||
prekey = 3 == parseInt(payload.type, 10);
|
||
|
||
stanza.c('key', {'rid': device.get('id') }).t(btoa(payload.body));
|
||
if (prekey) {
|
||
stanza.attrs({'prekey': prekey});
|
||
}
|
||
stanza.up();
|
||
if (i == dicts.length-1) {
|
||
stanza.c('iv').t(iv).up().up()
|
||
}
|
||
}
|
||
}
|
||
return Promise.resolve(stanza);
|
||
}
|
||
|
||
_converse.createOMEMOMessageStanza = function (chatbox, message, devices) {
|
||
const { __ } = _converse;
|
||
const body = __("This is an OMEMO encrypted message which your client doesn’t seem to support. "+
|
||
"Find more information on https://conversations.im/omemo");
|
||
|
||
if (!message.get('message')) {
|
||
throw new Error("No message body to encrypt!");
|
||
}
|
||
const stanza = $msg({
|
||
'from': _converse.connection.jid,
|
||
'to': chatbox.get('jid'),
|
||
'type': chatbox.get('message_type'),
|
||
'id': message.get('msgid')
|
||
}).c('body').t(body).up()
|
||
|
||
if (message.get('type') === 'chat') {
|
||
stanza.c('request', {'xmlns': Strophe.NS.RECEIPTS}).up();
|
||
}
|
||
// An encrypted header is added to the message for
|
||
// each device that is supposed to receive it.
|
||
// These headers simply contain the key that the
|
||
// payload message is encrypted with,
|
||
// and they are separately encrypted using the
|
||
// session corresponding to the counterpart device.
|
||
stanza.c('encrypted', {'xmlns': Strophe.NS.OMEMO})
|
||
.c('header', {'sid': _converse.omemo_store.get('device_id')});
|
||
|
||
return chatbox.encryptMessage(message.get('message')).then(obj => {
|
||
// The 16 bytes key and the GCM authentication tag (The tag
|
||
// SHOULD have at least 128 bit) are concatenated and for each
|
||
// intended recipient device, i.e. both own devices as well as
|
||
// devices associated with the contact, the result of this
|
||
// concatenation is encrypted using the corresponding
|
||
// long-standing SignalProtocol session.
|
||
const promises = devices
|
||
.filter(device => (device.get('trusted') != UNTRUSTED && device.get('active')))
|
||
.map(device => chatbox.encryptKey(obj.key_and_tag, device));
|
||
|
||
return Promise.all(promises)
|
||
.then(dicts => addKeysToMessageStanza(stanza, dicts, obj.iv))
|
||
.then(stanza => {
|
||
stanza.c('payload').t(obj.payload).up().up();
|
||
stanza.c('store', {'xmlns': Strophe.NS.HINTS});
|
||
return stanza;
|
||
});
|
||
});
|
||
}
|
||
|
||
|
||
_converse.OMEMOStore = Model.extend({
|
||
|
||
Direction: {
|
||
SENDING: 1,
|
||
RECEIVING: 2,
|
||
},
|
||
|
||
getIdentityKeyPair () {
|
||
const keypair = this.get('identity_keypair');
|
||
return Promise.resolve({
|
||
'privKey': u.base64ToArrayBuffer(keypair.privKey),
|
||
'pubKey': u.base64ToArrayBuffer(keypair.pubKey)
|
||
});
|
||
},
|
||
|
||
getLocalRegistrationId () {
|
||
return Promise.resolve(parseInt(this.get('device_id'), 10));
|
||
},
|
||
|
||
isTrustedIdentity (identifier, identity_key, direction) { // eslint-disable-line no-unused-vars
|
||
if (identifier === null || identifier === undefined) {
|
||
throw new Error("Can't check identity key for invalid key");
|
||
}
|
||
if (!(identity_key instanceof ArrayBuffer)) {
|
||
throw new Error("Expected identity_key to be an ArrayBuffer");
|
||
}
|
||
const trusted = this.get('identity_key'+identifier);
|
||
if (trusted === undefined) {
|
||
return Promise.resolve(true);
|
||
}
|
||
return Promise.resolve(u.arrayBufferToBase64(identity_key) === trusted);
|
||
},
|
||
|
||
loadIdentityKey (identifier) {
|
||
if (identifier === null || identifier === undefined) {
|
||
throw new Error("Can't load identity_key for invalid identifier");
|
||
}
|
||
return Promise.resolve(u.base64ToArrayBuffer(this.get('identity_key'+identifier)));
|
||
},
|
||
|
||
saveIdentity (identifier, identity_key) {
|
||
if (identifier === null || identifier === undefined) {
|
||
throw new Error("Can't save identity_key for invalid identifier");
|
||
}
|
||
const address = new libsignal.SignalProtocolAddress.fromString(identifier);
|
||
const existing = this.get('identity_key'+address.getName());
|
||
const b64_idkey = u.arrayBufferToBase64(identity_key);
|
||
this.save('identity_key'+address.getName(), b64_idkey)
|
||
|
||
if (existing && b64_idkey !== existing) {
|
||
return Promise.resolve(true);
|
||
} else {
|
||
return Promise.resolve(false);
|
||
}
|
||
},
|
||
|
||
getPreKeys () {
|
||
return this.get('prekeys') || {};
|
||
},
|
||
|
||
loadPreKey (key_id) {
|
||
const res = this.getPreKeys()[key_id];
|
||
if (res) {
|
||
return Promise.resolve({
|
||
'privKey': u.base64ToArrayBuffer(res.privKey),
|
||
'pubKey': u.base64ToArrayBuffer(res.pubKey)
|
||
});
|
||
}
|
||
return Promise.resolve();
|
||
},
|
||
|
||
storePreKey (key_id, key_pair) {
|
||
const prekey = {};
|
||
prekey[key_id] = {
|
||
'pubKey': u.arrayBufferToBase64(key_pair.pubKey),
|
||
'privKey': u.arrayBufferToBase64(key_pair.privKey)
|
||
}
|
||
this.save('prekeys', Object.assign(this.getPreKeys(), prekey));
|
||
return Promise.resolve();
|
||
},
|
||
|
||
removePreKey (key_id) {
|
||
this.save('prekeys', omit(this.getPreKeys(), key_id));
|
||
return Promise.resolve();
|
||
},
|
||
|
||
loadSignedPreKey (keyId) { // eslint-disable-line no-unused-vars
|
||
const res = this.get('signed_prekey');
|
||
if (res) {
|
||
return Promise.resolve({
|
||
'privKey': u.base64ToArrayBuffer(res.privKey),
|
||
'pubKey': u.base64ToArrayBuffer(res.pubKey)
|
||
});
|
||
}
|
||
return Promise.resolve();
|
||
},
|
||
|
||
storeSignedPreKey (spk) {
|
||
if (typeof spk !== "object") {
|
||
// XXX: We've changed the signature of this method from the
|
||
// example given in InMemorySignalProtocolStore.
|
||
// Should be fine because the libsignal code doesn't
|
||
// actually call this method.
|
||
throw new Error("storeSignedPreKey: expected an object");
|
||
}
|
||
this.save('signed_prekey', {
|
||
'id': spk.keyId,
|
||
'privKey': u.arrayBufferToBase64(spk.keyPair.privKey),
|
||
'pubKey': u.arrayBufferToBase64(spk.keyPair.pubKey),
|
||
// XXX: The InMemorySignalProtocolStore does not pass
|
||
// in or store the signature, but we need it when we
|
||
// publish out bundle and this method isn't called from
|
||
// within libsignal code, so we modify it to also store
|
||
// the signature.
|
||
'signature': u.arrayBufferToBase64(spk.signature)
|
||
});
|
||
return Promise.resolve();
|
||
},
|
||
|
||
removeSignedPreKey (key_id) {
|
||
if (this.get('signed_prekey')['id'] === key_id) {
|
||
this.unset('signed_prekey');
|
||
this.save();
|
||
}
|
||
return Promise.resolve();
|
||
},
|
||
|
||
loadSession (identifier) {
|
||
return Promise.resolve(this.get('session'+identifier));
|
||
},
|
||
|
||
storeSession (identifier, record) {
|
||
return Promise.resolve(this.save('session'+identifier, record));
|
||
},
|
||
|
||
removeSession (identifier) {
|
||
return Promise.resolve(this.unset('session'+identifier));
|
||
},
|
||
|
||
removeAllSessions (identifier) {
|
||
const keys = Object.keys(this.attributes).filter(key => key.startsWith('session'+identifier) ? key : false);
|
||
const attrs = {};
|
||
keys.forEach(key => {attrs[key] = undefined});
|
||
this.save(attrs);
|
||
return Promise.resolve();
|
||
},
|
||
|
||
publishBundle () {
|
||
const signed_prekey = this.get('signed_prekey');
|
||
const node = `${Strophe.NS.OMEMO_BUNDLES}:${this.get('device_id')}`;
|
||
const item = $build('item')
|
||
.c('bundle', {'xmlns': Strophe.NS.OMEMO})
|
||
.c('signedPreKeyPublic', {'signedPreKeyId': signed_prekey.id})
|
||
.t(signed_prekey.pubKey).up()
|
||
.c('signedPreKeySignature').t(signed_prekey.signature).up()
|
||
.c('identityKey').t(this.get('identity_keypair').pubKey).up()
|
||
.c('prekeys');
|
||
|
||
Object.values(this.get('prekeys')).forEach((prekey, id) => item.c('preKeyPublic', {'preKeyId': id}).t(prekey.pubKey).up());
|
||
const options = {'pubsub#access_model': 'open'};
|
||
return api.pubsub.publish(null, node, item, options, false);
|
||
},
|
||
|
||
async generateMissingPreKeys () {
|
||
const missing_keys = difference(
|
||
invokeMap(range(0, _converse.NUM_PREKEYS), Number.prototype.toString),
|
||
Object.keys(this.getPreKeys())
|
||
);
|
||
if (missing_keys.length < 1) {
|
||
log.warn("No missing prekeys to generate for our own device");
|
||
return Promise.resolve();
|
||
}
|
||
const keys = await Promise.all(missing_keys.map(id => libsignal.KeyHelper.generatePreKey(parseInt(id, 10))));
|
||
keys.forEach(k => this.storePreKey(k.keyId, k.keyPair));
|
||
const marshalled_keys = Object.keys(this.getPreKeys()).map(k => ({'id': k.keyId, 'key': u.arrayBufferToBase64(k.pubKey)}));
|
||
const devicelist = _converse.devicelists.get(_converse.bare_jid);
|
||
const device = devicelist.devices.get(this.get('device_id'));
|
||
const bundle = await device.getBundle();
|
||
device.save('bundle', Object.assign(bundle, {'prekeys': marshalled_keys}));
|
||
},
|
||
|
||
async generateBundle () {
|
||
/* The first thing that needs to happen if a client wants to
|
||
* start using OMEMO is they need to generate an IdentityKey
|
||
* and a Device ID. The IdentityKey is a Curve25519 [6]
|
||
* public/private Key pair. The Device ID is a randomly
|
||
* generated integer between 1 and 2^31 - 1.
|
||
*/
|
||
const identity_keypair = await libsignal.KeyHelper.generateIdentityKeyPair();
|
||
const bundle = {},
|
||
identity_key = u.arrayBufferToBase64(identity_keypair.pubKey),
|
||
device_id = generateDeviceID();
|
||
|
||
bundle['identity_key'] = identity_key;
|
||
bundle['device_id'] = device_id;
|
||
this.save({
|
||
'device_id': device_id,
|
||
'identity_keypair': {
|
||
'privKey': u.arrayBufferToBase64(identity_keypair.privKey),
|
||
'pubKey': identity_key
|
||
},
|
||
'identity_key': identity_key
|
||
});
|
||
const signed_prekey = await libsignal.KeyHelper.generateSignedPreKey(identity_keypair, 0);
|
||
|
||
_converse.omemo_store.storeSignedPreKey(signed_prekey);
|
||
bundle['signed_prekey'] = {
|
||
'id': signed_prekey.keyId,
|
||
'public_key': u.arrayBufferToBase64(signed_prekey.keyPair.privKey),
|
||
'signature': u.arrayBufferToBase64(signed_prekey.signature)
|
||
}
|
||
const keys = await Promise.all(range(0, _converse.NUM_PREKEYS).map(id => libsignal.KeyHelper.generatePreKey(id)));
|
||
keys.forEach(k => _converse.omemo_store.storePreKey(k.keyId, k.keyPair));
|
||
const devicelist = _converse.devicelists.get(_converse.bare_jid);
|
||
const device = await devicelist.devices.create({'id': bundle.device_id, 'jid': _converse.bare_jid}, {'promise': true});
|
||
const marshalled_keys = keys.map(k => ({'id': k.keyId, 'key': u.arrayBufferToBase64(k.keyPair.pubKey)}));
|
||
bundle['prekeys'] = marshalled_keys;
|
||
device.save('bundle', bundle);
|
||
},
|
||
|
||
fetchSession () {
|
||
if (this._setup_promise === undefined) {
|
||
this._setup_promise = new Promise((resolve, reject) => {
|
||
this.fetch({
|
||
'success': () => {
|
||
if (!_converse.omemo_store.get('device_id')) {
|
||
this.generateBundle().then(resolve).catch(reject);
|
||
} else {
|
||
resolve();
|
||
}
|
||
},
|
||
'error': (model, resp) => {
|
||
log.warn("Could not fetch OMEMO session from cache, we'll generate a new one.");
|
||
log.warn(resp);
|
||
this.generateBundle().then(resolve).catch(reject);
|
||
}
|
||
});
|
||
});
|
||
}
|
||
return this._setup_promise;
|
||
}
|
||
});
|
||
|
||
_converse.Device = Model.extend({
|
||
defaults: {
|
||
'trusted': UNDECIDED,
|
||
'active': true
|
||
},
|
||
|
||
getRandomPreKey () {
|
||
// XXX: assumes that the bundle has already been fetched
|
||
const bundle = this.get('bundle');
|
||
return bundle.prekeys[u.getRandomInt(bundle.prekeys.length)];
|
||
},
|
||
|
||
async fetchBundleFromServer () {
|
||
const stanza = $iq({
|
||
'type': 'get',
|
||
'from': _converse.bare_jid,
|
||
'to': this.get('jid')
|
||
}).c('pubsub', {'xmlns': Strophe.NS.PUBSUB})
|
||
.c('items', {'node': `${Strophe.NS.OMEMO_BUNDLES}:${this.get('id')}`});
|
||
|
||
let iq;
|
||
try {
|
||
iq = await api.sendIQ(stanza)
|
||
} catch (iq) {
|
||
throw new IQError("Could not fetch bundle", iq);
|
||
}
|
||
if (iq.querySelector('error')) {
|
||
throw new IQError("Could not fetch bundle", iq);
|
||
}
|
||
const publish_el = sizzle(`items[node="${Strophe.NS.OMEMO_BUNDLES}:${this.get('id')}"]`, iq).pop(),
|
||
bundle_el = sizzle(`bundle[xmlns="${Strophe.NS.OMEMO}"]`, publish_el).pop(),
|
||
bundle = parseBundle(bundle_el);
|
||
this.save('bundle', bundle);
|
||
return bundle;
|
||
},
|
||
|
||
getBundle () {
|
||
/* Fetch and save the bundle information associated with
|
||
* this device, if the information is not at hand already.
|
||
*/
|
||
if (this.get('bundle')) {
|
||
return Promise.resolve(this.get('bundle'), this);
|
||
} else {
|
||
return this.fetchBundleFromServer();
|
||
}
|
||
}
|
||
});
|
||
|
||
_converse.Devices = Collection.extend({
|
||
model: _converse.Device,
|
||
});
|
||
|
||
/**
|
||
* @class
|
||
* @namespace _converse.DeviceList
|
||
* @memberOf _converse
|
||
*/
|
||
_converse.DeviceList = Model.extend({
|
||
idAttribute: 'jid',
|
||
|
||
initialize () {
|
||
this.devices = new _converse.Devices();
|
||
const id = `converse.devicelist-${_converse.bare_jid}-${this.get('jid')}`;
|
||
this.devices.browserStorage = _converse.createStore(id);
|
||
this.fetchDevices();
|
||
|
||
},
|
||
|
||
async onDevicesFound (collection) {
|
||
if (collection.length === 0) {
|
||
let ids;
|
||
try {
|
||
ids = await this.fetchDevicesFromServer()
|
||
} catch (e) {
|
||
if (e === null) {
|
||
log.error(`Timeout error while fetching devices for ${this.get('jid')}`);
|
||
} else {
|
||
log.error(`Could not fetch devices for ${this.get('jid')}`);
|
||
log.error(e);
|
||
}
|
||
this.destroy();
|
||
}
|
||
if (this.get('jid') === _converse.bare_jid) {
|
||
await this.publishCurrentDevice(ids);
|
||
}
|
||
}
|
||
},
|
||
|
||
fetchDevices () {
|
||
if (this._devices_promise === undefined) {
|
||
this._devices_promise = new Promise(resolve => {
|
||
this.devices.fetch({
|
||
'success': c => resolve(this.onDevicesFound(c)),
|
||
'error': (m, e) => { log.error(e); resolve(); }
|
||
});
|
||
});
|
||
}
|
||
return this._devices_promise;
|
||
},
|
||
|
||
async publishCurrentDevice (device_ids) {
|
||
if (this.get('jid') !== _converse.bare_jid) {
|
||
return // We only publish for ourselves.
|
||
}
|
||
await restoreOMEMOSession();
|
||
let device_id = _converse.omemo_store.get('device_id');
|
||
if (!this.devices.findWhere({'id': device_id})) {
|
||
// Generate a new bundle if we cannot find our device
|
||
await _converse.omemo_store.generateBundle();
|
||
device_id = _converse.omemo_store.get('device_id');
|
||
}
|
||
if (!device_ids.includes(device_id)) {
|
||
return this.publishDevices();
|
||
}
|
||
},
|
||
|
||
async fetchDevicesFromServer () {
|
||
const stanza = $iq({
|
||
'type': 'get',
|
||
'from': _converse.bare_jid,
|
||
'to': this.get('jid')
|
||
}).c('pubsub', {'xmlns': Strophe.NS.PUBSUB})
|
||
.c('items', {'node': Strophe.NS.OMEMO_DEVICELIST});
|
||
|
||
let iq;
|
||
try {
|
||
iq = await api.sendIQ(stanza);
|
||
} catch (e) {
|
||
log.error(e);
|
||
return [];
|
||
}
|
||
const selector = `list[xmlns="${Strophe.NS.OMEMO}"] device`;
|
||
const device_ids = sizzle(selector, iq).map(d => d.getAttribute('id'));
|
||
await Promise.all(
|
||
device_ids.map(id => this.devices.create({id, 'jid': this.get('jid')}, {'promise': true}))
|
||
);
|
||
return device_ids;
|
||
},
|
||
|
||
publishDevices () {
|
||
const item = $build('item').c('list', {'xmlns': Strophe.NS.OMEMO})
|
||
this.devices.filter(d => d.get('active')).forEach(d => item.c('device', {'id': d.get('id')}).up());
|
||
const options = {'pubsub#access_model': 'open'};
|
||
return api.pubsub.publish(null, Strophe.NS.OMEMO_DEVICELIST, item, options, false);
|
||
},
|
||
|
||
removeOwnDevices (device_ids) {
|
||
if (this.get('jid') !== _converse.bare_jid) {
|
||
throw new Error("Cannot remove devices from someone else's device list");
|
||
}
|
||
device_ids.forEach(device_id => this.devices.get(device_id).destroy());
|
||
return this.publishDevices();
|
||
}
|
||
});
|
||
|
||
/**
|
||
* @class
|
||
* @namespace _converse.DeviceLists
|
||
* @memberOf _converse
|
||
*/
|
||
_converse.DeviceLists = Collection.extend({
|
||
model: _converse.DeviceList,
|
||
/**
|
||
* Returns the {@link _converse.DeviceList} for a particular JID.
|
||
* The device list will be created if it doesn't exist already.
|
||
* @private
|
||
* @method _converse.DeviceLists#getDeviceList
|
||
* @param { String } jid - The Jabber ID for which the device list will be returned.
|
||
*/
|
||
getDeviceList (jid) {
|
||
return this.get(jid) || this.create({'jid': jid});
|
||
}
|
||
});
|
||
|
||
|
||
function fetchDeviceLists () {
|
||
return new Promise((success, error) => _converse.devicelists.fetch({success, 'error': (m, e) => error(e)}));
|
||
}
|
||
|
||
async function fetchOwnDevices () {
|
||
await fetchDeviceLists();
|
||
let own_devicelist = _converse.devicelists.get(_converse.bare_jid);
|
||
if (own_devicelist) {
|
||
own_devicelist.fetchDevices();
|
||
} else {
|
||
own_devicelist = await _converse.devicelists.create({'jid': _converse.bare_jid}, {'promise': true});
|
||
}
|
||
return own_devicelist._devices_promise;
|
||
}
|
||
|
||
function updateBundleFromStanza (stanza) {
|
||
const items_el = sizzle(`items`, stanza).pop();
|
||
if (!items_el || !items_el.getAttribute('node').startsWith(Strophe.NS.OMEMO_BUNDLES)) {
|
||
return;
|
||
}
|
||
const device_id = items_el.getAttribute('node').split(':')[1],
|
||
jid = stanza.getAttribute('from'),
|
||
bundle_el = sizzle(`item > bundle`, items_el).pop(),
|
||
devicelist = _converse.devicelists.getDeviceList(jid),
|
||
device = devicelist.devices.get(device_id) || devicelist.devices.create({'id': device_id, 'jid': jid});
|
||
device.save({'bundle': parseBundle(bundle_el)});
|
||
}
|
||
|
||
function updateDevicesFromStanza (stanza) {
|
||
const items_el = sizzle(`items[node="${Strophe.NS.OMEMO_DEVICELIST}"]`, stanza).pop();
|
||
if (!items_el) {
|
||
return;
|
||
}
|
||
const device_selector = `item list[xmlns="${Strophe.NS.OMEMO}"] device`;
|
||
const device_ids = sizzle(device_selector, items_el).map(d => d.getAttribute('id'));
|
||
const jid = stanza.getAttribute('from');
|
||
const devicelist = _converse.devicelists.getDeviceList(jid);
|
||
const devices = devicelist.devices;
|
||
const removed_ids = difference(devices.pluck('id'), device_ids);
|
||
|
||
removed_ids.forEach(id => {
|
||
if (jid === _converse.bare_jid && id === _converse.omemo_store.get('device_id')) {
|
||
return // We don't set the current device as inactive
|
||
}
|
||
devices.get(id).save('active', false);
|
||
});
|
||
device_ids.forEach(device_id => {
|
||
const device = devices.get(device_id);
|
||
if (device) {
|
||
device.save('active', true);
|
||
} else {
|
||
devices.create({'id': device_id, 'jid': jid})
|
||
}
|
||
});
|
||
if (u.isSameBareJID(jid, _converse.bare_jid)) {
|
||
// Make sure our own device is on the list
|
||
// (i.e. if it was removed, add it again).
|
||
devicelist.publishCurrentDevice(device_ids);
|
||
}
|
||
}
|
||
|
||
function registerPEPPushHandler () {
|
||
// Add a handler for devices pushed from other connected clients
|
||
_converse.connection.addHandler((message) => {
|
||
try {
|
||
if (sizzle(`event[xmlns="${Strophe.NS.PUBSUB}#event"]`, message).length) {
|
||
updateDevicesFromStanza(message);
|
||
updateBundleFromStanza(message);
|
||
}
|
||
} catch (e) {
|
||
log.error(e.message);
|
||
}
|
||
return true;
|
||
}, null, 'message', 'headline');
|
||
}
|
||
|
||
function restoreOMEMOSession () {
|
||
if (_converse.omemo_store === undefined) {
|
||
const id = `converse.omemosession-${_converse.bare_jid}`;
|
||
_converse.omemo_store = new _converse.OMEMOStore({'id': id});
|
||
_converse.omemo_store.browserStorage = _converse.createStore(id);
|
||
}
|
||
return _converse.omemo_store.fetchSession();
|
||
}
|
||
|
||
async function initOMEMO () {
|
||
if (!_converse.config.get('trusted')) {
|
||
return;
|
||
}
|
||
_converse.devicelists = new _converse.DeviceLists();
|
||
const id = `converse.devicelists-${_converse.bare_jid}`;
|
||
_converse.devicelists.browserStorage = _converse.createStore(id);
|
||
|
||
try {
|
||
await fetchOwnDevices();
|
||
await restoreOMEMOSession();
|
||
await _converse.omemo_store.publishBundle();
|
||
} catch (e) {
|
||
log.error("Could not initialize OMEMO support");
|
||
log.error(e);
|
||
return;
|
||
}
|
||
/**
|
||
* Triggered once OMEMO support has been initialized
|
||
* @event _converse#OMEMOInitialized
|
||
* @example _converse.api.listen.on('OMEMOInitialized', () => { ... });
|
||
*/
|
||
api.trigger('OMEMOInitialized');
|
||
}
|
||
|
||
async function onOccupantAdded (chatroom, occupant) {
|
||
if (occupant.isSelf() || !chatroom.features.get('nonanonymous') || !chatroom.features.get('membersonly')) {
|
||
return;
|
||
}
|
||
if (chatroom.get('omemo_active')) {
|
||
const supported = await _converse.contactHasOMEMOSupport(occupant.get('jid'));
|
||
if (!supported) {
|
||
chatroom.createMessage({
|
||
'message': __("%1$s doesn't appear to have a client that supports OMEMO. " +
|
||
"Encrypted chat will no longer be possible in this grouchat.", occupant.get('nick')),
|
||
'type': 'error'
|
||
});
|
||
chatroom.save({'omemo_active': false, 'omemo_supported': false});
|
||
}
|
||
}
|
||
}
|
||
|
||
async function checkOMEMOSupported (chatbox) {
|
||
let supported;
|
||
if (chatbox.get('type') === _converse.CHATROOMS_TYPE) {
|
||
await api.waitUntil('OMEMOInitialized');
|
||
supported = chatbox.features.get('nonanonymous') && chatbox.features.get('membersonly');
|
||
} else if (chatbox.get('type') === _converse.PRIVATE_CHAT_TYPE) {
|
||
supported = await _converse.contactHasOMEMOSupport(chatbox.get('jid'));
|
||
}
|
||
chatbox.set('omemo_supported', supported);
|
||
if (supported && api.settings.get('omemo_default')) {
|
||
chatbox.set('omemo_active', true);
|
||
}
|
||
}
|
||
|
||
/******************** Event Handlers ********************/
|
||
|
||
api.waitUntil('chatBoxesInitialized').then(() =>
|
||
_converse.chatboxes.on('add', chatbox => {
|
||
checkOMEMOSupported(chatbox);
|
||
if (chatbox.get('type') === _converse.CHATROOMS_TYPE) {
|
||
chatbox.occupants.on('add', o => onOccupantAdded(chatbox, o));
|
||
chatbox.features.on('change', () => checkOMEMOSupported(chatbox));
|
||
}
|
||
})
|
||
);
|
||
|
||
api.listen.on('connected', registerPEPPushHandler);
|
||
api.listen.on('renderToolbar', view => view.renderOMEMOToolbarButton());
|
||
api.listen.on('statusInitialized', initOMEMO);
|
||
api.listen.on('addClientFeatures',
|
||
() => api.disco.own.features.add(`${Strophe.NS.OMEMO_DEVICELIST}+notify`));
|
||
|
||
api.listen.on('userDetailsModalInitialized', (contact) => {
|
||
const jid = contact.get('jid');
|
||
_converse.generateFingerprints(jid).catch(e => log.error(e));
|
||
});
|
||
|
||
api.listen.on('profileModalInitialized', () => {
|
||
_converse.generateFingerprints(_converse.bare_jid).catch(e => log.error(e));
|
||
});
|
||
|
||
api.listen.on('afterTearDown', () => (delete _converse.omemo_store));
|
||
|
||
api.listen.on('clearSession', () => {
|
||
if (_converse.shouldClearCache() && _converse.devicelists) {
|
||
_converse.devicelists.clearStore();
|
||
delete _converse.devicelists;
|
||
}
|
||
});
|
||
|
||
|
||
/************************ API ************************/
|
||
|
||
Object.assign(_converse.api, {
|
||
/**
|
||
* The "omemo" namespace groups methods relevant to OMEMO
|
||
* encryption.
|
||
*
|
||
* @namespace _converse.api.omemo
|
||
* @memberOf _converse.api
|
||
*/
|
||
'omemo': {
|
||
/**
|
||
* The "bundle" namespace groups methods relevant to the user's
|
||
* OMEMO bundle.
|
||
*
|
||
* @namespace _converse.api.omemo.bundle
|
||
* @memberOf _converse.api.omemo
|
||
*/
|
||
'bundle': {
|
||
/**
|
||
* Lets you generate a new OMEMO device bundle
|
||
*
|
||
* @method _converse.api.omemo.bundle.generate
|
||
* @returns {promise} Promise which resolves once we have a result from the server.
|
||
*/
|
||
'generate': async () => {
|
||
// Remove current device
|
||
const devicelist = _converse.devicelists.get(_converse.bare_jid),
|
||
device_id = _converse.omemo_store.get('device_id');
|
||
if (device_id) {
|
||
const device = devicelist.devices.get(device_id);
|
||
_converse.omemo_store.unset(device_id);
|
||
if (device) {
|
||
await new Promise(done => device.destroy({'success': done, 'error': done}));
|
||
}
|
||
devicelist.devices.trigger('remove');
|
||
}
|
||
// Generate new bundle and publish
|
||
await _converse.omemo_store.generateBundle();
|
||
await devicelist.publishDevices();
|
||
const device = devicelist.devices.get(_converse.omemo_store.get('device_id'));
|
||
return generateFingerprint(device);
|
||
}
|
||
}
|
||
}
|
||
});
|
||
}
|
||
});
|
||
|