Automatically Determine FTP Proxy Method

Tries each of the five possible ProxyMethod settings and returns the value (1-5) of the ProxyMethod that succeeded.

Download Chilkat Perl Module

use chilkat;

$ftp = new chilkat::CkFtp2();

#  Any string unlocks the component for the 1st 30-days.
$success = $ftp->UnlockComponent("Anything for 30-day trial");
if ($success != 1) {
    print $ftp->lastErrorText() . "\n";
    exit;
}

$ftp->put_Hostname("www.example-code.com");
$ftp->put_Username("example-code.com");
$ftp->put_Password("****");

$ftp->put_ProxyHostname("ftp.myproxyhost.com");
$ftp->put_ProxyPort(21);
#  Note: Your FTP Proxy server may or may not require authentication.
$ftp->put_ProxyUsername("myProxyUsername");
$ftp->put_ProxyPassword("myProxyPassword");

#  The ProxyMethod should be an integer value between 1 and 5.
#  If you know your FTP proxy server's authentication scheme,
#  you may set it directly.  To determine the ProxyMethod,
#  call DetermineProxyMethod.  A return value of -1 indicates a failure.
#  A return value of 0 indicates that nothing worked.
#  A return value of 1-5 indicates the ProxyMethod that was
#  successful, and this should be the value used for the ProxyMethod
#  property.

$pMethod = $ftp->DetermineProxyMethod();
print $pMethod . "\r\n";

$ftp->Disconnect();