func getListenPeer(c *config.CherryRooms, port string) (net.Listener, error) {
var listenConn net.Listener
var listenError error
if c.GetCertificatePath() != "" && c.GetPrivateKeyPath() != "" {
cert, err := tls.LoadX509KeyPair(c.GetCertificatePath(), c.GetPrivateKeyPath())
if err != nil {
return nil, err
}
secParams := &tls.Config{Certificates: []tls.Certificate{cert}}
listenConn, listenError = tls.Listen("tcp", c.GetServerName()+":"+port, secParams)
} else {
listenConn, listenError = net.Listen("tcp", c.GetServerName()+":"+port)
}
return listenConn, listenError
}