private static bool CanAccess(string scheme, IPEndPoint addr)
{
if (addr == null)
{
return(false);
}
try
{
Uri url = new Uri(scheme + "://" + NetUtils.GetHostPortString(addr));
URLConnection conn = connectionFactory.OpenConnection(url);
conn.Connect();
conn.GetContent();
}
catch (Exception)
{
return(false);
}
return(true);
}