Perl

FTP Download Binary File to a Stream

See more FTP Examples

Demonstrates how to FTP download a binary file to a Chilkat stream.

Note: This example requires Chilkat v9.5.0.67 or greater.

Perl

use chilkat();

$success = 0;

# This example assumes the Chilkat FTP2 API to have been previously unlocked.
# See FTP2 Unlock Sample for sample code.

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

$ftp->put_Hostname("www.my-ftp-server.com");
$ftp->put_Username("mFtpLogin");
$ftp->put_Password("myFtpPassword");
$ftp->put_AuthTls(1);
$ftp->put_Passive(1);

# Connect and login to the FTP server using TLS.
$success = $ftp->Connect();
if ($success != 1) {
    print $ftp->lastErrorText() . "\r\n";
    exit;
}

# We'll read the incoming data chunk-by-chunk and write to an output file.
$fac = chilkat::CkFileAccess->new();
$success = $fac->OpenForWrite("qa_output/penguins2.jpg");
if ($success != 1) {
    print $fac->lastErrorText() . "\r\n";
    exit;
}

$streamObj = chilkat::CkStream->new();

# Create a task to do the FTP download.
# t is a Task
$t = $ftp->GetFileToStreamAsync("penguins2.jpg",$streamObj);
if ($ftp->get_LastMethodSuccess() != 1) {
    print $ftp->lastErrorText() . "\r\n";
    exit;
}

# Start the task in a background thread.
$t->Run();

$bd = chilkat::CkBinData->new();
while ($streamObj->get_EndOfStream() != 1) {
    # Get the next chunk of JPG bytes.
    $streamObj->ReadBd($bd);
    # Do something with it..
    # In this simple example, we'll just write to the file.
    $fac->FileWriteBd($bd,0,0);
    # Clear for the next read.
    $bd->Clear();
}

$fac->FileClose();

print "Success." . "\r\n";