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| import { createServer } from 'http' | |
| import { WebSocketServer } from 'ws' | |
| import { parse } from 'url' | |
| const PORT = 8000 | |
| const server = createServer() | |
| // noSever: Tells WebSocketServer not to create an HTTP server | |
| // but to instead handle upgrade requests from the existing | |
| // server (above). | |
| const wsServer = new WebSocketServer({ noServer: true }) | |
| const authenticate = request => { | |
| const { token } = parse(request.url, true).query | |
| // TODO: Actually authenticate token | |
| if (token === "abc") { | |
| return true | |
| } | |
| } | |
| server.on('upgrade', (request, socket, head) => { | |
| const authed = authenticate(request) | |
| if (!authed) { | |
| // \r\n\r\n: These are control characters used in HTTP to | |
| // denote the end of the HTTP headers section. | |
| socket.write('HTTP/1.1 401 Unauthorized\r\n\r\n') | |
| socket.destroy() | |
| return | |
| } | |
| wsServer.handleUpgrade(request, socket, head, connection => { | |
| // Manually emit the 'connection' event on a WebSocket | |
| // server (we subscribe to this event below). | |
| wsServer.emit('connection', connection, request) | |
| }) | |
| }) | |
| wsServer.on('connection', connection => { | |
| console.log('connection') | |
| connection.on('message', bytes => { | |
| // %s: Convert the bytes (buffer) into a string using | |
| // utf-8 encoding. | |
| console.log('received %s', bytes) | |
| }) | |
| }) | |
| server.listen(PORT, () => console.log(`Server started on port ${PORT}`)) |
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