Test Connect and Ftp Uri fo FtpClients

FtpTestHelper.cs

public static class FtpTestHelper
{
    public static bool TestConnect(string ftpRequestUrl, string ftpUserName, string ftpPassword)
    {
        bool rv = false;
        if (!TestUri(ftpRequestUrl))
            return false;

        FtpWebRequest request = (FtpWebRequest)FtpWebRequest.Create(new Uri(ftpRequestUrl));
        request.Credentials = new NetworkCredential(ftpUserName, ftpRequestUrl);
        request.UsePassive = true;
        request.UseBinary = true;
        request.KeepAlive = false;

        try
        {
            FtpWebResponse response = (FtpWebResponse)request.GetResponse();
            rv = true;
        }
        catch (WebException e)
        {
            if (e.Status == WebExceptionStatus.ProtocolError)
            {
                rv = true;
            }
            else
            {
                rv = false;
            }
        }
        return rv;
    }

    public static bool TestUri(string ftpUrl)
    {
        // ftp://DomainName.com/
        // ftp://12.12.12.12/
        Regex regex = new Regex("^(ftp)://.+$");
        return regex.IsMatch(ftpUrl);
    }
}