OpenCart 🇺🇦

if (!$this->customer->isLogged()) {
	$this->session->data['redirect'] = $this->url->link('account/download', '', 'SSL');

	$this->redirect($this->url->link('account/login', '', 'SSL'));
}

$this->load->model('account/download');

if (isset($this->request->get['order_download_id'])) {
	$order_download_id = $this->request->get['order_download_id'];
} else {
	$order_download_id = 0;
}

$download_info = $this->model_account_download->getDownload($order_download_id);

if ($download_info) {
	$file = DIR_DOWNLOAD . $download_info['filename'];
	$mask = basename($download_info['mask']);

	if (!headers_sent()) {
		if (file_exists($file)) {
			header('Content-Type: application/octet-stream');
			header('Content-Disposition: attachment; filename="' . ($mask ? $mask : basename($file)) . '"');
			header('Expires: 0');
			header('Cache-Control: must-revalidate, post-check=0, pre-check=0');
			header('Pragma: public');
			header('Content-Length: ' . filesize($file));

			if (ob_get_level()) ob_end_clean();

			readfile($file, 'rb');

			$this->model_account_download->updateRemaining($this->request->get['order_download_id']);

			exit;
		} else {
			exit('Error: Could not find file ' . $file . '!');
		}
	} else {
		exit('Error: Headers already sent out!');
	}
} else {
	$this->redirect($this->url->link('account/download', '', 'SSL'));
}