mirror of
https://github.com/Skylar-Tech/node-red-contrib-matrix-chat.git
synced 2025-04-20 04:53:06 -06:00
574 lines
26 KiB
JavaScript
574 lines
26 KiB
JavaScript
const {RelationType, TimelineWindow} = require("matrix-js-sdk");
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global.Olm = require('olm');
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const fs = require("fs-extra");
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const sdk = require("matrix-js-sdk");
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const { resolve } = require('path');
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const { LocalStorage } = require('node-localstorage');
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const { LocalStorageCryptoStore } = require('matrix-js-sdk/lib/crypto/store/localStorage-crypto-store');
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const {RoomEvent, RoomMemberEvent, HttpApiEvent, ClientEvent, MemoryStore} = require("matrix-js-sdk");
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require("abort-controller/polyfill"); // polyfill abort-controller if we don't have it
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if (!globalThis.fetch) {
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// polyfill fetch if we don't have it
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if (!globalThis.fetch) {
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import('node-fetch').then(({ default: fetch, Headers, Request, Response }) => {
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Object.assign(globalThis, { fetch, Headers, Request, Response })
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})
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}
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}
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module.exports = function(RED) {
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// disable logging if set to "off"
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let loggingSettings = RED.settings.get('logging');
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if(
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typeof loggingSettings.console !== 'undefined' &&
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typeof loggingSettings.console.level !== 'undefined' &&
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['info','debug','trace'].indexOf(loggingSettings.console.level.toLowerCase()) >= 0
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) {
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const { logger } = require('matrix-js-sdk/lib/logger');
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logger.disableAll();
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}
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function MatrixFolderNameFromUserId(name) {
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return name.replace(/[^a-z0-9]/gi, '_').toLowerCase();
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}
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function MatrixServerNode(n) {
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let node = this,
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storageDir = RED.settings.userDir + '/matrix-client-storage';
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RED.nodes.createNode(this, n);
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node.setMaxListeners(1000);
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node.log("Initializing Matrix Server Config node");
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if(!this.credentials) {
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this.credentials = {};
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}
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this.users = {};
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this.connected = null;
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this.name = n.name;
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this.userId = this.credentials.userId;
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this.deviceLabel = this.credentials.deviceLabel || null;
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this.deviceId = this.credentials.deviceId || null;
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this.url = this.credentials.url;
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this.autoAcceptRoomInvites = n.autoAcceptRoomInvites;
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this.e2ee = n.enableE2ee || false;
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this.globalAccess = n.global;
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this.allowUnknownDevices = n.allowUnknownDevices || false;
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this.initializedAt = new Date();
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node.initialSyncLimit = 25;
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// Keep track of all consumers of this node to be able to catch errors
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node.register = function(consumerNode) {
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node.users[consumerNode.id] = consumerNode;
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};
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node.deregister = function(consumerNode) {
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delete node.users[consumerNode.id];
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};
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if(!this.userId) {
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node.log("Matrix connection failed: missing user ID in configuration.");
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return;
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}
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let localStorageDir = storageDir + '/' + MatrixFolderNameFromUserId(this.userId),
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localStorage = new LocalStorage(localStorageDir),
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initialSetup = false;
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let retryStartTimeout = null;
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if(!this.credentials.accessToken) {
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node.error("Matrix connection failed: missing access token in configuration.", {});
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} else if(!this.url) {
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node.error("Matrix connection failed: missing server URL in configuration.", {});
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} else {
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node.setConnected = async function(connected, cb) {
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if (node.connected !== connected) {
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node.connected = connected;
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if(typeof cb === 'function') {
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cb(connected);
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}
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if (connected) {
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node.log("Matrix server connection ready.");
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node.emit("connected");
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if(!initialSetup) {
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// store Device ID internally
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let stored_device_id = getStoredDeviceId(localStorage),
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device_id = this.matrixClient.getDeviceId();
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if(!device_id && node.enableE2ee) {
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node.error("Failed to auto detect deviceId for this auth token. You will need to manually specify one. You may need to login to create a new deviceId.", {})
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} else {
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if(!stored_device_id || stored_device_id !== device_id) {
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node.log(`Saving Device ID (old:${stored_device_id} new:${device_id})`);
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storeDeviceId(localStorage, device_id);
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}
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// update device label
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if(node.deviceLabel) {
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node.matrixClient
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.getDevice(device_id)
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.then(
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function(response) {
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if(response.display_name !== node.deviceLabel) {
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node.matrixClient.setDeviceDetails(device_id, {
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display_name: node.deviceLabel
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}).then(
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function(response) {},
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function(error) {
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node.error("Failed to set device label: " + error, {});
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}
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);
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}
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},
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function(error) {
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node.error("Failed to fetch device: " + error, {});
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}
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);
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}
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}
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initialSetup = true;
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}
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} else {
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node.emit("disconnected");
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}
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if(this.globalAccess) {
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this.context().global.set('matrixClientOnline["'+this.userId+'"]', connected);
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}
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}
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};
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node.setConnected(false);
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fs.ensureDirSync(storageDir); // create storage directory if it doesn't exist
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upgradeDirectoryIfNecessary(node, storageDir);
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node.matrixClient = sdk.createClient({
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baseUrl: this.url,
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accessToken: this.credentials.accessToken,
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cryptoStore: new LocalStorageCryptoStore(localStorage),
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store: new MemoryStore({
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localStorage: localStorage,
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}),
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userId: this.userId,
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deviceId: (this.deviceId || getStoredDeviceId(localStorage)) || undefined
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// verificationMethods: ["m.sas.v1"]
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});
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node.debug(`hasLazyLoadMembersEnabled=${node.matrixClient.hasLazyLoadMembersEnabled()}`);
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// set globally if configured to do so
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if(this.globalAccess) {
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this.context().global.set('matrixClient["'+this.userId+'"]', node.matrixClient);
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}
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function stopClient() {
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if(node.matrixClient && node.matrixClient.clientRunning) {
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node.matrixClient.stopClient();
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node.setConnected(false);
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}
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if(retryStartTimeout) {
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clearTimeout(retryStartTimeout);
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}
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}
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node.on('close', function(done) {
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stopClient();
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if(node.globalAccess) {
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try {
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node.context().global.set('matrixClient["'+node.userId+'"]', undefined);
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} catch(e){
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node.error(e.message, {});
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}
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}
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done();
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});
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node.isConnected = function() {
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return node.connected;
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};
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node.matrixClient.on(RoomEvent.Timeline, async function(event, room, toStartOfTimeline, removed, data) {
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if (toStartOfTimeline) {
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node.log("Ignoring" + (event.isEncrypted() ? ' encrypted' : '') +" timeline event [" + (event.getContent()['msgtype'] || event.getType()) + "]: (" + room.name + ") " + event.getId() + " for reason: paginated result");
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return; // ignore paginated results
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}
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if (!data || !data.liveEvent) {
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node.log("Ignoring" + (event.isEncrypted() ? ' encrypted' : '') +" timeline event [" + (event.getContent()['msgtype'] || event.getType()) + "]: (" + room.name + ") " + event.getId() + " for reason: old message");
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return; // ignore old message (we only want live events)
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}
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if(node.initializedAt > event.getDate()) {
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node.log("Ignoring" + (event.isEncrypted() ? ' encrypted' : '') +" timeline event [" + (event.getContent()['msgtype'] || event.getType()) + "]: (" + room.name + ") " + event.getId() + " for reason: old message before init");
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return; // skip events that occurred before our client initialized
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}
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try {
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await node.matrixClient.decryptEventIfNeeded(event);
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} catch (error) {
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node.error(error, {});
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return;
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}
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const isDmRoom = (room) => {
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// Find out if this is a direct message room.
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let isDM = !!room.getDMInviter();
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const allMembers = room.currentState.getMembers();
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if (!isDM && allMembers.length <= 2) {
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// if not a DM, but there are 2 users only
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// double check DM (needed because getDMInviter works only if you were invited, not if you invite)
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// hence why we check for each member
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if (allMembers.some((m) => m.getDMInviter())) {
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return true;
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}
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}
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return allMembers.length <= 2 && isDM;
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};
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let msg = {
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encrypted : event.isEncrypted(),
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redacted : event.isRedacted(),
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content : event.getContent(),
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type : (event.getContent()['msgtype'] || event.getType()) || null,
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payload : (event.getContent()['body'] || event.getContent()) || null,
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isDM : isDmRoom(room),
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isThread : event.getContent()?.['m.relates_to']?.rel_type === RelationType.Thread,
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mentions : event.getContent()["m.mentions"] || null,
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userId : event.getSender(),
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user : node.matrixClient.getUser(event.getSender()),
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topic : event.getRoomId(),
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eventId : event.getId(),
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event : event,
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};
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// remove keys from user property that start with an underscore
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Object.keys(msg.user).forEach(function (key) {
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if (/^_/.test(key)) {
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delete msg.user[key];
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}
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});
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node.log(`Received ${msg.encrypted ? 'encrypted ' : ''}timeline event [${msg.type}]: (${room.name}) ${event.getSender()} :: ${msg.content.body} ${toStartOfTimeline ? ' [PAGINATED]' : ''}`);
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node.emit("Room.timeline", event, room, toStartOfTimeline, removed, data, msg);
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});
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/**
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* Fires when we want to suggest to the user that they restore their megolm keys
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* from backup or by cross-signing the device.
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*
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* @event module:client~MatrixClient#"crypto.suggestKeyRestore"
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*/
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// node.matrixClient.on("crypto.suggestKeyRestore", function(){
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//
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// });
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// node.matrixClient.on("RoomMember.typing", async function(event, member) {
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// let isTyping = member.typing;
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// let roomId = member.roomId;
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// });
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// node.matrixClient.on("RoomMember.powerLevel", async function(event, member) {
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// let newPowerLevel = member.powerLevel;
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// let newNormPowerLevel = member.powerLevelNorm;
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// let roomId = member.roomId;
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// });
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// node.matrixClient.on("RoomMember.name", async function(event, member) {
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// let newName = member.name;
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// let roomId = member.roomId;
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// });
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// handle auto-joining rooms
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node.matrixClient.on(RoomMemberEvent.Membership, async function(event, member) {
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if(node.initializedAt > event.getDate()) {
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return; // skip events that occurred before our client initialized
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}
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if (member.membership === "invite" && member.userId === node.userId) {
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node.log("Got invite to join room " + member.roomId);
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if(node.autoAcceptRoomInvites) {
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node.matrixClient.joinRoom(member.roomId).then(function() {
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node.log("Automatically accepted invitation to join room " + member.roomId);
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}).catch(function(e) {
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node.warn("Cannot join room (could be from being kicked/banned) " + member.roomId + ": " + e);
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});
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}
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let room = node.matrixClient.getRoom(event.getRoomId());
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node.emit("Room.invite", {
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type : 'm.room.member',
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userId : event.getSender(),
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topic : event.getRoomId(),
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topicName : (room ? room.name : null) || null,
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event : event,
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eventId : event.getId(),
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});
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}
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});
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node.matrixClient.on(ClientEvent.Sync, async function(state, prevState, data) {
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node.debug("SYNC [STATE=" + state + "] [PREVSTATE=" + prevState + "]");
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if(prevState === null && state === "PREPARED" ) {
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// Occurs when the initial sync is completed first time.
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// This involves setting up filters and obtaining push rules.
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node.setConnected(true, function(){
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node.log("Matrix client connected");
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});
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} else if(prevState === null && state === "ERROR") {
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// Occurs when the initial sync failed first time.
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node.setConnected(false, function(){
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node.error("Failed to connect to Matrix server", {});
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});
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} else if(prevState === "ERROR" && state === "PREPARED") {
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// Occurs when the initial sync succeeds
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// after previously failing.
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node.setConnected(true, function(){
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node.log("Matrix client connected");
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});
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} else if(prevState === "PREPARED" && state === "SYNCING") {
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// Occurs immediately after transitioning to PREPARED.
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// Starts listening for live updates rather than catching up.
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node.setConnected(true, function(){
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node.log("Matrix client connected");
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});
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} else if(prevState === "SYNCING" && state === "RECONNECTING") {
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// Occurs when the live update fails.
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node.setConnected(false, function(){
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node.error("Connection to Matrix server lost", {});
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});
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} else if(prevState === "RECONNECTING" && state === "RECONNECTING") {
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// Can occur if the update calls continue to fail,
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// but the keepalive calls (to /versions) succeed.
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node.setConnected(false, function(){
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node.error("Connection to Matrix server lost", {});
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});
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} else if(prevState === "RECONNECTING" && state === "ERROR") {
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// Occurs when the keepalive call also fails
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node.setConnected(false, function(){
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node.error("Connection to Matrix server lost", {});
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});
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} else if(prevState === "ERROR" && state === "SYNCING") {
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// Occurs when the client has performed a
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// live update after having previously failed.
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node.setConnected(true, function(){
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node.log("Matrix client connected");
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});
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} else if(prevState === "ERROR" && state === "ERROR") {
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// Occurs when the client has failed to
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// keepalive for a second time or more.
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node.setConnected(false, function(){
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node.error("Connection to Matrix server lost", {});
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});
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} else if(prevState === "SYNCING" && state === "SYNCING") {
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// Occurs when the client has performed a live update.
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// This is called <i>after</i> processing.
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node.setConnected(true, function(){
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node.log("Matrix client connected");
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});
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} else if(state === "STOPPED") {
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// Occurs once the client has stopped syncing or
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// trying to sync after stopClient has been called.
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node.setConnected(false, function(){
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node.error("Connection to Matrix server lost", {});
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});
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}
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});
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node.matrixClient.on(HttpApiEvent.SessionLoggedOut, async function(errorObj){
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// Example if user auth token incorrect:
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// {
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// errcode: 'M_UNKNOWN_TOKEN',
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// data: {
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// errcode: 'M_UNKNOWN_TOKEN',
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// error: 'Invalid macaroon passed.',
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// soft_logout: false
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// },
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// httpStatus: 401
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// }
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node.error("Authentication failure: " + errorObj, {});
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stopClient();
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});
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async function run() {
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try {
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if(node.e2ee){
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node.log("Initializing crypto...");
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await node.matrixClient.initCrypto();
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node.matrixClient.getCrypto().globalBlacklistUnverifiedDevices = false; // prevent errors from unverified devices
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node.matrixClient.getCrypto().globalErrorOnUnknownDevices = !node.allowUnknownDevices;
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}
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node.log("Connecting to Matrix server...");
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await node.matrixClient.startClient({
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initialSyncLimit: node.initialSyncLimit
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});
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} catch(error) {
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node.error(error, {});
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}
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}
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// do an authed request and only continue if we don't get an error
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// this prevent the matrix client from crashing Node-RED on invalid auth token
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(function checkAuthTokenThenStart() {
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if(node.matrixClient.clientRunning) {
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return;
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}
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/**
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* We do a /whoami request before starting for a few reasons:
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* - validate our auth token
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* - make sure auth token belongs to provided node.userId
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* - fetch device_id if possible (only available on Synapse >= v1.40.0 under MSC2033)
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*/
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node.matrixClient.whoami()
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.then(
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function(data) {
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if((typeof data['device_id'] === undefined || !data['device_id']) && !node.deviceId && !getStoredDeviceId(localStorage)) {
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node.error("/whoami request did not return device_id. You will need to manually set one in your configuration because this cannot be automatically fetched.", {});
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}
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if('device_id' in data && data['device_id'] && !node.deviceId) {
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// if we have no device_id configured lets use the one
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// returned by /whoami for this access_token
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node.matrixClient.deviceId = data['device_id'];
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}
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// make sure our userId matches the access token's
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if(data['user_id'].toLowerCase() !== node.userId.toLowerCase()) {
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node.error(`User ID provided is ${node.userId} but token belongs to ${data['user_id']}`, {});
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return;
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}
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run().catch((error) => node.error(error));
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},
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function(err) {
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// if the error isn't authentication related retry in a little bit
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if(err.code !== "M_UNKNOWN_TOKEN") {
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retryStartTimeout = setTimeout(checkAuthTokenThenStart, 15000);
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node.error("Auth check failed: " + err, {});
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}
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}
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)
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})();
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}
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}
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RED.nodes.registerType("matrix-server-config", MatrixServerNode, {
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credentials: {
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deviceLabel: { type: "text", required: false },
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userId: { type: "text", required: true },
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accessToken: { type: "text", required: true },
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deviceId: { type: "text", required: false },
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url: { type: "text", required: true }
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}
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});
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RED.httpAdmin.post(
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"/matrix-chat/login",
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RED.auth.needsPermission('flows.write'),
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function(req, res) {
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let userId = req.body.userId || undefined,
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password = req.body.password || undefined,
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baseUrl = req.body.baseUrl || undefined,
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deviceId = req.body.deviceId || undefined,
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displayName = req.body.displayName || undefined;
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const matrixClient = sdk.createClient({
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baseUrl: baseUrl,
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deviceId: deviceId,
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timelineSupport: true,
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localTimeoutMs: '30000'
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});
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new TimelineWindow()
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|
matrixClient.timelineSupport = true;
|
|
|
|
matrixClient.login(
|
|
'm.login.password', {
|
|
identifier: {
|
|
type: 'm.id.user',
|
|
user: userId,
|
|
},
|
|
password: password,
|
|
initial_device_display_name: displayName
|
|
})
|
|
.then(
|
|
function(response) {
|
|
res.json({
|
|
'result': 'ok',
|
|
'token': response.access_token,
|
|
'device_id': response.device_id,
|
|
'user_id': response.user_id,
|
|
});
|
|
},
|
|
function(err) {
|
|
res.json({
|
|
'result': 'error',
|
|
'message': err
|
|
});
|
|
}
|
|
);
|
|
});
|
|
|
|
function upgradeDirectoryIfNecessary(node, storageDir) {
|
|
let oldStorageDir = './matrix-local-storage',
|
|
oldStorageDir2 = './matrix-client-storage';
|
|
|
|
// if the old storage location exists lets move it to the new location
|
|
if(fs.pathExistsSync(oldStorageDir)){
|
|
RED.nodes.eachNode(function(n){
|
|
try {
|
|
if(n.type !== 'matrix-server-config') return;
|
|
let { userId } = RED.nodes.getCredentials(n.id);
|
|
let dir = storageDir + '/' + MatrixFolderNameFromUserId(userId);
|
|
if(!fs.pathExistsSync(dir)) {
|
|
fs.ensureDirSync(dir);
|
|
node.log("found old '" + oldStorageDir + "' path, copying to new location '" + dir);
|
|
fs.copySync(oldStorageDir, dir);
|
|
}
|
|
} catch (err) {
|
|
node.error(err, {});
|
|
}
|
|
});
|
|
|
|
// rename folder to keep as a backup (and so we don't run again)
|
|
node.log("archiving old config folder '" + oldStorageDir + "' to '" + oldStorageDir + "-backup");
|
|
fs.renameSync(oldStorageDir, oldStorageDir + "-backup");
|
|
}
|
|
|
|
if(RED.settings.userDir !== resolve('./') && resolve(oldStorageDir2) !== resolve(storageDir)) {
|
|
// user directory does not match running directory
|
|
// check if we stored stuff in wrong directory and move it
|
|
if(fs.pathExistsSync(oldStorageDir2)){
|
|
fs.ensureDirSync(storageDir);
|
|
node.log("found old '" + oldStorageDir2 + "' path, copying to new location '" + storageDir);
|
|
fs.copySync(oldStorageDir2, storageDir);
|
|
// rename folder to keep as a backup (and so we don't run again)
|
|
fs.renameSync(oldStorageDir2, oldStorageDir2 + "-backup");
|
|
}
|
|
}
|
|
}
|
|
|
|
/**
|
|
* If a device ID is stored we will use that for the client
|
|
*/
|
|
function getStoredDeviceId(localStorage) {
|
|
let deviceId = localStorage.getItem('my_device_id');
|
|
if(deviceId === "null" || !deviceId) {
|
|
return null;
|
|
}
|
|
return deviceId;
|
|
}
|
|
|
|
function storeDeviceId(localStorage, deviceId) {
|
|
if(!deviceId) {
|
|
return false;
|
|
}
|
|
localStorage.setItem('my_device_id', deviceId);
|
|
return true;
|
|
}
|
|
}
|