hi rory,
thx ur prompt response,
but the link
http://marc.theaimsgroup.com/?l=jakarta-commons-user&m=107877944806547&w=2
states that FTPClient can connect via ftp proxy, am i correct?
and i have tried to switch the proxy to a open src one callled java
socks server, http://jsocks.sourceforge.net/
luckily it seems work for my code,
i can now on connect to the proxy and then ftp to the target ftp
account. i suspect there is problems in my previous proxy
server(BPSlite). i am trying to figure out the problems. i attached is
ftpclient code
hope this help
alex
On 8/16/06, Rory Winston <[EMAIL PROTECTED]> wrote:
Hi Alex
The FTPClient library isn't capable of FTP transactions thru a proxy at present
(unless there is some external trickery that I'm not aware of that would
facilitate this). This wouldn't require a huge amount of extra effort - I've
looked at how Sun have implemented it for their internal JDK FTP client, but
unfortunately it's not something that's there now.
Rory
"Jakarta Commons Developers List" <[email protected]> wrote:
>
> hi all,
> i am developing a ftpclient.java using commons-net-1.4.1.jar library.
>
> it works fine if not via proxy server. it can login the ftp account
> and list files. But my target is to connect the ftp server via proxy
> server.
>
> by following the Paul Buchana
> here:
http://marc.theaimsgroup.com/?l=jakarta-commons-user&m=107877944806547&w=2
> i add the following two lines before the connect line
> System.getProperties().put( "socksProxyPort", "7200");
> System.getProperties().put( "socksProxyHost" ,"25.10.22.11"); //
> 25.10.22.11 is proxy server with port 7200
>
> prv_cls_ftpclient.connect("25.10.22.13",21); <-- target ftp server to
> connect, it can connect to ftp server if comment the above
> System.getProperties lines
> reply = prv_cls_ftpclient.getReplyCode();
> System.out.print("Print log reply code"+reply);
> if(!FTPReply.isPositiveCompletion(reply)) {
> prv_cls_ftpclient.disconnect();
> System.err.println("FTP server refused connection.");
> System.exit(1);
> }
> System.out.print("Print log Connection");
> prv_cls_ftpclient.login("user", "pass");
>
> but it stop at the .connect line without further proceed, what's wrong
> with my code. any miss setting i should did?? or is it possible to a
> ftp server via a proxy server?
>
> I am using a lite proxy server called Binary Proxy Server BPSLite.exe on
windows
> --
> Regards,
> Alex
>
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Regards,
Alex
import java.io.PrintWriter;
import java.net.InetAddress;
import org.apache.commons.net.ftp.FTPReply;
import org.apache.commons.net.ftp.FTPClient;
import org.apache.commons.net.ftp.FTPClientConfig;
import org.apache.commons.net.ProtocolCommandEvent;
import org.apache.commons.net.ProtocolCommandListener;
public class ftpClient2{
public static void main(String arg[]) throws Exception
{
int reply;
FTPClient prv_cls_ftpclient = new FTPClient();
System.out.println("Client2 Print log get data
mode:"+prv_cls_ftpclient.getDataConnectionMode());
System.getProperties().put("socksProxyPort","1099");
System.getProperties().put("socksProxyHost","x.x.x.x"); //ip
address
System.out.print("Print log before Connecting");
prv_cls_ftpclient.connect("x.x.x.x");
reply = prv_cls_ftpclient.getReplyCode();
System.out.print("Print log reply code"+reply);
if(!FTPReply.isPositiveCompletion(reply)) {
prv_cls_ftpclient.disconnect();
System.err.println("FTP server refused connection.");
System.exit(1);
}
System.out.print("Print log Connecting");
prv_cls_ftpclient.login("user", "password");
System.out.print("Print log Login");
if(prv_cls_ftpclient.isConnected())
{
System.out.println("connected !");
prv_cls_ftpclient.enterLocalPassiveMode() ;
String filelist [] = prv_cls_ftpclient.listNames();
for(int i=0;i<filelist.length;i++)
{
System.out.println(filelist[i]);
}
prv_cls_ftpclient.logout();
System.out.println("Print log: Logout Successfully");
}
else
System.out.println("Fail to connect !");
prv_cls_ftpclient.disconnect();
}
}
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