93 lines
1.9 KiB
TypeScript
93 lines
1.9 KiB
TypeScript
import * as http from 'http';
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import * as websocket from 'websocket';
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import * as redis from 'redis';
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import config from '../conf';
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import User from './models/user';
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import AccessToken from './models/access-token';
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import isNativeToken from './common/is-native-token';
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import homeStream from './stream/home';
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import messagingStream from './stream/messaging';
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module.exports = (server: http.Server) => {
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/**
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* Init websocket server
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*/
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const ws = new websocket.server({
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httpServer: server
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});
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ws.on('request', async (request) => {
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const connection = request.accept();
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const user = await authenticate(connection, request.resourceURL.query.i);
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if (user == null) {
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connection.send('authentication-failed');
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connection.close();
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return;
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}
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// Connect to Redis
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const subscriber = redis.createClient(
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config.redis.port, config.redis.host);
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connection.on('close', () => {
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subscriber.unsubscribe();
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subscriber.quit();
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});
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const channel =
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request.resourceURL.pathname === '/' ? homeStream :
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request.resourceURL.pathname === '/messaging' ? messagingStream :
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null;
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if (channel !== null) {
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channel(request, connection, subscriber, user);
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} else {
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connection.close();
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}
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});
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};
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function authenticate(connection: websocket.connection, token: string): Promise<any> {
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if (token == null) {
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return Promise.resolve(null);
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}
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return new Promise(async (resolve, reject) => {
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if (isNativeToken(token)) {
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// Fetch user
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// SELECT _id
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const user = await User
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.findOne({
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token: token
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}, {
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fields: {
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_id: true
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}
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});
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resolve(user);
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} else {
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const accessToken = await AccessToken.findOne({
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hash: token
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});
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if (accessToken == null) {
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return reject('invalid signature');
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}
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// Fetch user
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// SELECT _id
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const user = await User
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.findOne({ _id: accessToken.user_id }, {
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fields: {
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_id: true
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}
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});
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resolve(user);
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}
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});
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}
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