Gorilla Websocket - Proxy with URL, Username and Password

[Subramanian Sridharan]

Hello Gophers,

I've been using Gorilla Websocket for a persistent connection and it has been working as expected.

Now there is a need to achieve the same functionality over a Proxy.

After researching a bit, I came across

http.ProxyFromEnvironment

But I need to connect to the Proxy using an URL, a proxy username and password.

It looks like I should use this function 

func (hpd *httpProxyDialer) Dial(network string, addr string) (net.Conn, error)

Can someone explain how I should set the Username and Password for the hpd, if possible, with an example?

Reference: https://github.com/gorilla/websocket/blob/master/proxy.go

[Subramanian Sridharan]

Here's the solution.

You generate a proxyUrl and then a dialer like so:

proxyURL, _ := url.Parse("http://proxy-ip:proxy-port")

proxyURL.User = url.UserPassword("proxy-username", "proxy-password")

dialer := websocket.Dialer{

    Proxy: http.ProxyURL(proxyURL),

}

conn, _, _ := dialer.Dial(WEBSOCKET_URL, nil)