Help with websocket

[mvala]

Cockpit version: 251
OS: Centos
Page: Own page

I would like to make websocket connection via cockpit.channel. I would like to do following

var WebSocketClient = require('websocket').client;
var client = new WebSocketClient();
client.on('connect', function(connection) {
    console.log('WebSocket Client Connected');
    connection.on('error', function(error) {
        console.log("Connection Error: " + error.toString());
    });
    connection.on('close', function() {
        console.log('Connection Closed');
    });
    connection.on('message', function(message) {
        console.log(message);
    });
});
client.connect('ws://localhost:8442/','');

Can you give me hint or example for this? Thanks

[dmatis2]

It would help me too!

[dmatis2]

I've tried this code:

var client = new WebSocket("ws://localhost:8442/");
        client.on("connect", function (connection) {
            console.log("WebSocket Client Connected");
            connection.on("error", function (error) {
                console.log("Connection Error: " + error.toString());
            });
            connection.on("close", function () {
                console.log("Connection Closed");
            });
            connection.on("message", function (message) {
                console.log(message);
            });
        });

but it ended with:

Refused to connect to 'ws://localhost:8442/' because it violates the following Content Security Policy directive: "connect-src 'self' https://n001.ndmspc.io:9090 wss://n001.ndmspc.io:9090".

[martinpitt]

As a first step you'd need to allow this in the Content-Security-Policy in your manifest.json. Add something like

"content-security-policy": "default-src 'self'; img-src 'self' ws://localhost:8442"

I don't know if that's already sufficient, but that at least takes care of the C-S-P blocking?