Perl

Check if an FTP Listing Entry is a Directory

Demonstrates the Chilkat Ftp2.GetIsDirectory method, which returns whether a cached directory-listing entry is a directory. The only argument is a zero-based index. An invalid index returns false.

Background: Distinguishing directories from files is the first thing most listing code needs — to render a folder tree, to decide whether to recurse, or to apply different handling. This reads the type from the cached listing, so it is a local lookup rather than a server query. Reliability depends on the server's listing format conveying the type, which the common Unix and MLSD formats do.

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Perl

use chilkat();

$success = 0;

#  Demonstrates the Ftp2.GetIsDirectory method, which returns whether a cached directory-listing
#  entry is a directory.  The only argument is a zero-based index into the current listing.

$ftp = chilkat::CkFtp2->new();

$ftp->put_Hostname("ftp.example.com");
$ftp->put_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->put_Password("myPassword");

$success = $ftp->Connect();
if ($success == 0) {
    print $ftp->lastErrorText() . "\r\n";
    exit;
}

$success = $ftp->ChangeRemoteDir("public_html");
if ($success == 0) {
    print $ftp->lastErrorText() . "\r\n";
    exit;
}

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

for ($i = 0; $i <= $n - 1; $i++) {
    $name = $ftp->getFilename($i);
    if ($ftp->GetIsDirectory($i)) {
        print "[DIR]  " . $name . "\r\n";
    }
    else {
        print "       " . $name . "\r\n";
    }

}

$success = $ftp->Disconnect();
if ($success == 0) {
    print $ftp->lastErrorText() . "\r\n";
    exit;
}