OpenCart 🇺🇦

$this->data['button_confirm'] = $this->language->get('button_confirm');

$this->load->model('checkout/order');

$order_info = $this->model_checkout_order->getOrder($this->session->data['order_id']);

$this->data['action'] = 'https://liqpay.com/?do=clickNbuy';

$xml  = '<request>';
$xml .= '	<version>1.2</version>';
$xml .= '	<result_url>' . $this->url->link('checkout/success', '', 'SSL') . '</result_url>';
$xml .= '	<server_url>' . $this->url->link('payment/liqpay/callback', '', 'SSL') . '</server_url>';
$xml .= '	<merchant_id>' . $this->config->get('liqpay_merchant') . '</merchant_id>';
$xml .= '	<order_id>' . $this->session->data['order_id'] . '</order_id>';
$xml .= '	<amount>' . $this->currency->format($order_info['total'], $order_info['currency_code'], $order_info['currency_value'], false) . '</amount>';
$xml .= '	<currency>' . $order_info['currency_code'] . '</currency>';
$xml .= '	<description>' . $this->config->get('config_name') . ' ' . $order_info['payment_firstname'] . ' ' . $order_info['payment_address_1'] . ' ' . $order_info['payment_address_2'] . ' ' . $order_info['payment_city'] . ' ' . $order_info['email'] . '</description>';
$xml .= '	<default_phone></default_phone>';
$xml .= '	<pay_way>' . $this->config->get('liqpay_type') . '</pay_way>';
$xml .= '</request>';

$this->data['xml'] = base64_encode($xml);
$this->data['signature'] = base64_encode(sha1($this->config->get('liqpay_signature') . $xml . $this->config->get('liqpay_signature'), true));

if (file_exists(DIR_TEMPLATE . $this->config->get('config_template') . '/template/payment/liqpay.tpl')) {
	$this->template = $this->config->get('config_template') . '/template/payment/liqpay.tpl';
} else {
	$this->template = 'default/template/payment/liqpay.tpl';
}	

$this->render();

$xml = base64_decode($this->request->post['operation_xml']);
$signature = base64_encode(sha1($this->config->get('liqpay_signature') . $xml . $this->config->get('liqpay_signature'), true));

$posleft = strpos($xml, 'order_id');
$posright = strpos($xml, '/order_id');

$order_id = substr($xml, $posleft + 9, $posright - $posleft - 10);

if ($signature == $this->request->post['signature']) {
	$this->load->model('checkout/order');

	$this->model_checkout_order->confirm($order_id, $this->config->get('config_order_status_id'));			
}