multiparty-meeting/server/server.js

426 lines
8.9 KiB
JavaScript
Executable File

#!/usr/bin/env node
'use strict';
process.title = 'multiparty-meeting-server';
const config = require('./config/config');
const fs = require('fs');
const http = require('http');
const spdy = require('spdy');
const express = require('express');
const compression = require('compression');
const mediasoup = require('mediasoup');
const AwaitQueue = require('awaitqueue');
const Logger = require('./lib/Logger');
const Room = require('./lib/Room');
const utils = require('./util');
const base64 = require('base-64');
// auth
const passport = require('passport');
const { Issuer, Strategy } = require('openid-client');
const session = require('express-session');
/* eslint-disable no-console */
console.log('- process.env.DEBUG:', process.env.DEBUG);
console.log('- config.mediasoup.logLevel:', config.mediasoup.logLevel);
console.log('- config.mediasoup.logTags:', config.mediasoup.logTags);
/* eslint-enable no-console */
const logger = new Logger();
const queue = new AwaitQueue();
// mediasoup Workers.
// @type {Array<mediasoup.Worker>}
const mediasoupWorkers = [];
// Index of next mediasoup Worker to use.
// @type {Number}
let nextMediasoupWorkerIdx = 0;
// Map of Room instances indexed by roomId.
const rooms = new Map();
// TLS server configuration.
const tls =
{
cert : fs.readFileSync(config.tls.cert),
key : fs.readFileSync(config.tls.key)
};
const app = express();
let httpsServer;
let oidcClient;
let oidcStrategy;
passport.serializeUser((user, done) =>
{
done(null, user);
});
passport.deserializeUser((user, done) =>
{
done(null, user);
});
const auth = config.auth;
async function run()
{
if (
typeof(auth) !== 'undefined' &&
typeof(auth.issuerURL) !== 'undefined' &&
typeof(auth.clientOptions) !== 'undefined'
)
{
Issuer.discover(auth.issuerURL).then( async (oidcIssuer) =>
{
// Setup authentication
await setupAuth(oidcIssuer);
// Run a mediasoup Worker.
await runMediasoupWorkers();
// Run HTTPS server.
await runHttpsServer();
// Run WebSocketServer.
await runWebSocketServer();
})
.catch((err) =>
{
logger.error(err);
});
}
else
{
logger.error('Auth is not configure properly!');
// Run a mediasoup Worker.
await runMediasoupWorkers();
// Run HTTPS server.
await runHttpsServer();
// Run WebSocketServer.
await runWebSocketServer();
}
// Log rooms status every 30 seconds.
setInterval(() =>
{
for (const room of rooms.values())
{
room.logStatus();
}
}, 120000);
}
async function setupAuth(oidcIssuer)
{
oidcClient = new oidcIssuer.Client(auth.clientOptions);
// ... any authorization request parameters go here
// client_id defaults to client.client_id
// redirect_uri defaults to client.redirect_uris[0]
// response type defaults to client.response_types[0], then 'code'
// scope defaults to 'openid'
const params = auth.clientOptions;
// optional, defaults to false, when true req is passed as a first
// argument to verify fn
const passReqToCallback = false;
// optional, defaults to false, when true the code_challenge_method will be
// resolved from the issuer configuration, instead of true you may provide
// any of the supported values directly, i.e. "S256" (recommended) or "plain"
const usePKCE = false;
const client = oidcClient;
oidcStrategy = new Strategy(
{ client, params, passReqToCallback, usePKCE },
(tokenset, userinfo, done) =>
{
const user =
{
id : tokenset.claims.sub,
provider : tokenset.claims.iss,
_userinfo : userinfo,
_claims : tokenset.claims
};
if (typeof(userinfo.picture) !== 'undefined')
{
if (!userinfo.picture.match(/^http/g))
{
user.Photos = [ { value: `data:image/jpeg;base64, ${userinfo.picture}` } ];
}
else
{
user.Photos = [ { value: userinfo.picture } ];
}
}
if (userinfo.nickname != null)
{
user.displayName = userinfo.nickname;
}
if (userinfo.name != null)
{
user.displayName = userinfo.name;
}
if (userinfo.email != null)
{
user.emails = [ { value: userinfo.email } ];
}
if (userinfo.given_name != null)
{
user.name = { givenName: userinfo.given_name };
}
if (userinfo.family_name != null)
{
user.name = { familyName: userinfo.family_name };
}
if (userinfo.middle_name != null)
{
user.name = { middleName: userinfo.middle_name };
}
return done(null, user);
}
);
passport.use('oidc', oidcStrategy);
app.use(session({
secret : config.cookieSecret,
resave : true,
saveUninitialized : true,
cookie : { secure: true }
}));
app.use(passport.initialize());
app.use(passport.session());
// login
app.get('/auth/login', (req, res, next) =>
{
passport.authenticate('oidc', {
state : base64.encode(JSON.stringify({
roomId : req.query.roomId,
peerId : req.query.peerId,
code : utils.random(10)
}))
})(req, res, next);
});
// logout
app.get('/auth/logout', (req, res) =>
{
req.logout();
res.redirect('/');
});
// callback
app.get(
'/auth/callback',
passport.authenticate('oidc', { failureRedirect: '/auth/login' }),
(req, res) =>
{
const state = JSON.parse(base64.decode(req.query.state));
if (rooms.has(state.roomId))
{
let displayName;
let photo;
if (req.user != null)
{
if (req.user.displayName != null)
displayName = req.user.displayName;
else
displayName = '';
if (
req.user.Photos != null &&
req.user.Photos[0] != null &&
req.user.Photos[0].value != null
)
photo = req.user.Photos[0].value;
else
photo = '/static/media/buddy.403cb9f6.svg';
}
const data =
{
peerId : state.peerId,
displayName : displayName,
picture : photo
};
const room = rooms.get(state.roomId);
room.authCallback(data);
}
res.send('');
}
);
}
async function runHttpsServer()
{
app.use(compression());
app.use('/.well-known/acme-challenge', express.static('public/.well-known/acme-challenge'));
app.all('*', (req, res, next) =>
{
if (req.secure)
{
return next();
}
res.redirect(`https://${req.hostname}${req.url}`);
});
app.get('/', (req, res) =>
{
res.sendFile(`${__dirname}/public/chooseRoom.html`);
});
// Serve all files in the public folder as static files.
app.use(express.static('public'));
app.use((req, res) => res.sendFile(`${__dirname}/public/index.html`));
httpsServer = spdy.createServer(tls, app);
httpsServer.listen(config.listeningPort, '0.0.0.0', () =>
{
logger.info('Server running on port: ', config.listeningPort);
});
const httpServer = http.createServer(app);
httpServer.listen(config.listeningRedirectPort, '0.0.0.0', () =>
{
logger.info('Server redirecting port: ', config.listeningRedirectPort);
});
}
/**
* Create a protoo WebSocketServer to allow WebSocket connections from browsers.
*/
async function runWebSocketServer()
{
const io = require('socket.io')(httpsServer);
// Handle connections from clients.
io.on('connection', (socket) =>
{
const { roomId, peerId } = socket.handshake.query;
if (!roomId || !peerId)
{
logger.warn('connection request without roomId and/or peerId');
socket.disconnect(true);
return;
}
logger.info(
'connection request [roomId:"%s", peerId:"%s"]', roomId, peerId);
queue.push(async () =>
{
const room = await getOrCreateRoom({ roomId });
room.handleConnection({ peerId, socket });
})
.catch((error) =>
{
logger.error('room creation or room joining failed:%o', error);
socket.disconnect(true);
return;
});
});
}
/**
* Launch as many mediasoup Workers as given in the configuration file.
*/
async function runMediasoupWorkers()
{
const { numWorkers } = config.mediasoup;
logger.info('running %d mediasoup Workers...', numWorkers);
for (let i = 0; i < numWorkers; ++i)
{
const worker = await mediasoup.createWorker(
{
logLevel : config.mediasoup.worker.logLevel,
logTags : config.mediasoup.worker.logTags,
rtcMinPort : config.mediasoup.worker.rtcMinPort,
rtcMaxPort : config.mediasoup.worker.rtcMaxPort
});
worker.on('died', () =>
{
logger.error(
'mediasoup Worker died, exiting in 2 seconds... [pid:%d]', worker.pid);
setTimeout(() => process.exit(1), 2000);
});
mediasoupWorkers.push(worker);
}
}
/**
* Get next mediasoup Worker.
*/
function getMediasoupWorker()
{
const worker = mediasoupWorkers[nextMediasoupWorkerIdx];
if (++nextMediasoupWorkerIdx === mediasoupWorkers.length)
nextMediasoupWorkerIdx = 0;
return worker;
}
/**
* Get a Room instance (or create one if it does not exist).
*/
async function getOrCreateRoom({ roomId })
{
let room = rooms.get(roomId);
// If the Room does not exist create a new one.
if (!room)
{
logger.info('creating a new Room [roomId:%s]', roomId);
const mediasoupWorker = getMediasoupWorker();
room = await Room.create({ mediasoupWorker, roomId });
rooms.set(roomId, room);
room.on('close', () => rooms.delete(roomId));
}
return room;
}
run();