static public bool Exist(nilnul.web.UrlI4 url, NetworkCredential cred)
{
//string url = "ftp://ftp.example.com/remote/path/file.txt";
var request = (FtpWebRequest)WebRequest.Create(url.ToString());
request.Credentials = cred; // new NetworkCredential("username", "password");
request.Method = WebRequestMethods.Ftp.GetDateTimestamp; // WebRequestMethods.Ftp.GetFileSize;
/*Because
* request.Method = WebRequestMethods.Ftp.GetFileSize
* may fails in some case (550: SIZE not allowed in ASCII mode), you can just check Timestamp instead.*/
request.UseBinary = true;
try
{
request.GetResponse();
return(true);
}
catch (WebException e)
{
FtpWebResponse response = (FtpWebResponse)e.Response;
if (response.StatusCode == FtpStatusCode.ActionNotTakenFileUnavailable)
{
Trace.WriteLine("Does not exist");
return(false);
}
else
{
Trace.WriteLine("Error: " + e.Message);
throw;
}
}
}
static public void Download(NetworkCredential cred, nilnul.web.UrlI4 url, nilnul.fs.address_.SpearI spear)
{
WebClient client = new WebClient();
client.Credentials = cred; // new NetworkCredential("username", "password");
client.DownloadFile(
url.ToString() //"ftp://ftp.example.com/remote/path/file.zip"
,
spear.ToString() //@"C:\local\path\file.zip"
);
}
