DialContext doesn't give back TLS information

[mdosch]

Dear devs,

thank you for providing this library, however, I have an issue:

I have an TLS encrypted connection, but the response of DialContext() doesn't provide this informations as resp.TLS is always nil. :(

Here I dial: https://salsa.debian.org/mdosch/xmpp-dns/-/blob/gorilla/main.go#L956
There it is always nil: https://salsa.debian.org/mdosch/xmpp-dns/-/blob/gorilla/main.go#L1007

Best regards,
Martin

Use this function as a workaround for the missing functionality:

func getTLS(c any) *tls.ConnectionState {
	for c != nil {
		if tc, ok := c.(*tls.Conn); ok {
			state := tc.ConnectionState()
			return &state
		}
		wc, ok := c.(interface{ NetConn() net.Conn })
		if !ok {
			break
		}
		c = wc.NetConn()
	}
	return nil
}

Call it like this:

 c, r, err := d.DialContext(...)
 state := getTLS(c)

[mdosch]

@tollwayclout thanks a lot, this works! :)
How do you want to be attributed?

[mdosch]

Thanks again. :)

See #967.