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<?php
/**
* @package Joomla
* @subpackage Membership Pro
* @author Tuan Pham Ngoc
* @copyright Copyright (C) 2012 - 2026 Ossolution Team
* @license GNU/GPL, see LICENSE.php
*/
defined('_JEXEC') or die;
use Joomla\CMS\Factory;
class OSMembershipHelperLegacy
{
/**
* Download invoice of a subscription record
*
* @param int $id
*/
public static function downloadInvoice($id)
{
$config = OSMembershipHelper::getConfig();
$db = Factory::getContainer()->get('db');
$row = new OSMembershipTableSubscriber($db);
$row->load($id);
$invoiceStorePath = JPATH_ROOT . '/media/com_osmembership/invoices/';
if ($row)
{
if (!$row->invoice_number)
{
$row->invoice_number = OSMembershipHelper::getInvoiceNumber($row);
$row->store();
}
$invoiceNumber = OSMembershipHelper::formatInvoiceNumber($row, $config);
OSMembershipHelper::generateInvoicePDF($row);
$invoicePath = $invoiceStorePath . $invoiceNumber . '.pdf';
$fileName = $invoiceNumber . '.pdf';
while (@ob_end_clean())
{
}
self::processDownload($invoicePath, $fileName);
}
}
/**
* Process download a file
*
* @param string $file : Full path to the file which will be downloaded
*/
public static function processDownload($filePath, $filename, $detectFilename = false)
{
$fsize = @filesize($filePath);
$mod_date = date('r', filemtime($filePath));
$cont_dis = 'attachment';
if ($detectFilename)
{
$filename = OSMembershipHelper::getOriginalFilename($filename);
}
$ext = OSMembershipHelper::getFileExt($filename);
$mime = self::getMimeType($ext);
// required for IE, otherwise Content-disposition is ignored
if (ini_get('zlib.output_compression'))
{
ini_set('zlib.output_compression', 'Off');
}
header('Pragma: public');
header('Cache-Control: must-revalidate, post-check=0, pre-check=0');
header('Expires: 0');
header('Content-Transfer-Encoding: binary');
header(
'Content-Disposition:' . $cont_dis . ';' . ' filename="' . $filename . '";' . ' modification-date="' . $mod_date . '";' . ' size=' . $fsize .
';'
); //RFC2183
header('Content-Type: ' . $mime); // MIME type
header('Content-Length: ' . $fsize);
if (!ini_get('safe_mode'))
{ // set_time_limit doesn't work in safe mode
@set_time_limit(0);
}
self::readfile_chunked($filePath);
}
/**
* Get mimetype of a file
*
* @return string
*/
public static function getMimeType($ext)
{
require_once JPATH_ROOT . '/components/com_osmembership/helper/mime.mapping.php';
foreach ($mime_extension_map as $key => $value)
{
if ($key == $ext)
{
return $value;
}
}
return '';
}
/**
* Read file
*
* @param string $filename
* @param bool $retbytes
*
* @return mixed
*/
public static function readfile_chunked($filename, $retbytes = true)
{
$chunksize = 1 * (1024 * 1024); // how many bytes per chunk
$cnt = 0;
$handle = fopen($filename, 'rb');
if ($handle === false)
{
return false;
}
while (!feof($handle))
{
$buffer = fread($handle, $chunksize);
echo $buffer;
@ob_flush();
flush();
if ($retbytes)
{
$cnt += strlen($buffer);
}
}
$status = fclose($handle);
if ($retbytes && $status)
{
return $cnt; // return num. bytes delivered like readfile() does.
}
return $status;
}
}