Perl

Get an FTP Listing Entry's Owner

Demonstrates the Chilkat Ftp2.GetOwner method, which returns the owner name or identifier of a cached directory-listing entry. The only argument is a zero-based index. The value is empty when a valid entry has no owner metadata.

Background: Owner information appears in Unix-style listings and is useful for auditing or for deciding whether an operation is likely to be permitted. It is not universally available — some servers and listing formats omit it entirely, and it may be a numeric ID rather than a name — so treat an empty result as "not reported" rather than an error.

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use strict;
use warnings;
use Chilkat2;

# Demonstrates the Ftp2.GetOwner method, which returns the owner name or identifier of a cached
# directory-listing entry.  The only argument is a zero-based index.

my $ftp = Chilkat2::Ftp2->new;

$ftp->Hostname('ftp.example.com');
$ftp->Username('myFtpLogin');

# Normally you would not hard-code the password in source.  You should instead obtain it
# from an interactive prompt, environment variable, or a secrets vault.
$ftp->Password('myPassword');

my $success = $ftp->Connect();
if (!$success) {
    print $ftp->LastErrorText, "\n";
    exit;
}

$success = $ftp->ChangeRemoteDir('public_html');
if (!$success) {
    print $ftp->LastErrorText, "\n";
    exit;
}

# GetDirCount retrieves the directory listing on the first call and returns the number of
# entries.  A negative return indicates failure.
my $n = $ftp->GetDirCount();
if ($n < 0) {
    print $ftp->LastErrorText, "\n";
    exit;
}

for my $i (0 .. $n - 1) {
    my $name = $ftp->GetFilename($i);

    # The owner is empty when a valid entry has no owner metadata.
    my $owner = $ftp->GetOwner($i);
    print $owner, '  ', $name, "\n";
}

$success = $ftp->Disconnect();
if (!$success) {
    print $ftp->LastErrorText, "\n";
    exit;
}