WebSocket-specific INFO

This fixes #4252 by ensuring that `tls_available`, `tls_required`, `host` and `port`
are populated based on the WebSocket listener rather than standard listeners.

Signed-off-by: Neil Twigg <neil@nats.io>

server/client.go

@@ -2167,6 +2167,19 @@ func (c *client) generateClientInfoJSON(info Info) []byte {
 	info.MaxPayload = c.mpay
 	if c.isWebsocket() {
 		info.ClientConnectURLs = info.WSConnectURLs
+		c.srv.websocket.mu.RLock()
+		info.TLSAvailable = c.srv.websocket.tls
+		if tc := c.srv.websocket.server.TLSConfig; tc != nil {
+			info.TLSRequired = !tc.InsecureSkipVerify
+		}
+		laddr := c.srv.websocket.listener.Addr().String()
+		c.srv.websocket.mu.RUnlock()
+		if h, p, err := net.SplitHostPort(laddr); err == nil {
+			if p, err := strconv.Atoi(p); err == nil {
+				info.Host = h
+				info.Port = p
+			}
+		}
 	}
 	info.WSConnectURLs = nil
 	// Generate the info json