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How to use HTTPS on Node.js using Express/Socket.io

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没有蜡笔的小新
没有蜡笔的小新 2020-12-04 08:30

Im trying to run my node server with https. I\'m using express and socket.io.

This is my code for https:

var httpsPort = 443;
var privateKey = fs.rea
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  • 忘掉有多难
    2020-12-04 08:47

    It is hard to test your example without your key and cert files instead I am going to provide an example where I am using Express, socket.io, and https.

    First I will create the key and cert files, so inside a directory run the following commands from your terminal:

    The command below it is going to generate a file containing an RSA key.

    $ openssl genrsa 1024 > file.pem

    Here you will be asked to input data but you can leave blank pressing enter until the crs.pem is generated. 

    $ openssl req -new -key file.pem -out csr.pem

    Then a file.crt file will be created containing an SSL certificate. 

    $ openssl x509 -req -days 365 -in csr.pem -signkey file.pem -out file.crt

    So in my app.js file where I am setting and starting the server notice that I am using the files file.pem and file.crt generated in the last step:

    var fs = require('fs');
var https = require('https');

var express = require('express');
var app = express();

var options = {
  key: fs.readFileSync('./file.pem'),
  cert: fs.readFileSync('./file.crt')
};
var serverPort = 443;

var server = https.createServer(options, app);
var io = require('socket.io')(server);

app.get('/', function(req, res) {
  res.sendFile(__dirname + '/public/index.html');
});

io.on('connection', function(socket) {
  console.log('new connection');
  socket.emit('message', 'This is a message from the dark side.');
});

server.listen(serverPort, function() {
  console.log('server up and running at %s port', serverPort);
});

    and then my public/index.html where I am consuming the server:

    <!doctype html>
<html>

  <head>

  </head>
  <body>
    <h1>I am alive!!</h1>

    <script src="https://cdnjs.cloudflare.com/ajax/libs/socket.io/1.3.5/socket.io.js"></script>

    <script>
      var URL_SERVER = 'https://localhost:443';
      var socket = io.connect(URL_SERVER);

      socket.on('message', function(data) {
        alert(data);
      });
    </script>
  </body>

</html>

    then finally if you access from the browser at https://localhost, you will see an alert with a message that is coming from the websocket server.

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  • 北荒
    2020-12-04 08:53

    This is how I managed to set it up with express:

    var fs = require( 'fs' );
var app = require('express')();
var https        = require('https');
var server = https.createServer({
    key: fs.readFileSync('./test_key.key'),
    cert: fs.readFileSync('./test_cert.crt'),
    ca: fs.readFileSync('./test_ca.crt'),
    requestCert: false,
    rejectUnauthorized: false
},app);
server.listen(8080);

var io = require('socket.io').listen(server);

io.sockets.on('connection',function (socket) {
    ...
});

app.get("/", function(request, response){
    ...
})

    I hope that this will save someone's time.

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