OpenCart 🇺🇦

if (!$this->user->hasPermission('modify', 'payment/klarna_account')) {
	$this->error['warning'] = $this->language->get('error_permission');
}

$log = new Log('klarna_account.log');

$country = array(    
	'NOR' => array(
		'currency' => 1,
		'country'  => 164,
		'language' => 97,
	),
	'SWE' => array(
		'currency' => 0,
		'country'  => 209,
		'language' => 138,
	),
	'FIN' => array(
		'currency' => 2,
		'country'  => 73,
		'language' => 101,
	),
	'DNK' => array(
		'currency' => 3,
		'country'  => 59,
		'language' => 27,
	),
	'DEU' => array(
		'currency' => 2,
		'country'  => 81,
		'language' => 28,
	),
	'NLD' => array(
		'currency' => 2,
		'country'  => 154,
		'language' => 101,
	),
);

foreach ($this->request->post['klarna_account'] as $key => $klarna_account) {
	if ($klarna_account['status']) {
		$digest = base64_encode(pack("H*", hash('sha256', $klarna_account['merchant']  . ':' . $country[$key]['currency'] . ':' . $klarna_account['secret'])));

		$xml  = '<methodCall>';
		$xml .= '  <methodName>get_pclasses</methodName>';
		$xml .= '  <params>';
		$xml .= '    <param><value><string>4.1</string></value></param>';
		$xml .= '    <param><value><string>API:OPENCART:' . VERSION . '</string></value></param>';
		$xml .= '    <param><value><int>' . (int)$klarna_account['merchant'] . '</int></value></param>';
		$xml .= '    <param><value><int>' . $country[$key]['currency'] . '</int></value></param>';
		$xml .= '    <param><value><string>' . $digest . '</string></value></param>';
		$xml .= '    <param><value><int>' . $country[$key]['country'] . '</int></value></param>';
		$xml .= '    <param><value><int>' . $country[$key]['language'] . '</int></value></param>';
		$xml .= '  </params>';
		$xml .= '</methodCall>';

		if ($klarna_account['server'] == 'live') {
			$url = 'https://payment.klarna.com';
		} else {
			$url = 'https://payment.testdrive.klarna.com';
		}

		$curl = curl_init();

		$header  = 'Content-Type: text/xml' . "\n";
		$header .= 'Content-Length: ' . strlen($xml) . "\n";

		curl_setopt($curl, CURLOPT_URL, $url);
		curl_setopt($curl, CURLOPT_SSL_VERIFYPEER, false);
		curl_setopt($curl, CURLOPT_SSL_VERIFYHOST, 2);
		curl_setopt($curl, CURLOPT_CUSTOMREQUEST, 'POST');
		curl_setopt($curl, CURLOPT_RETURNTRANSFER, 1);
		curl_setopt($curl, CURLOPT_HEADER, $header);
		curl_setopt($curl, CURLOPT_POSTFIELDS, $xml);

		$response = curl_exec($curl);

		if ($response !== false) {
			$xml = new DOMDocument();
			$xml->loadXML($response);

			$xpath = new DOMXPath($xml);

			$nodes = $xpath->query('//methodResponse/params/param/value');

			if ($nodes->length == 0) {
				$this->error['warning'] = $this->language->get('error_log');

				$error_code = $xpath->query('//methodResponse/fault/value/struct/member/value/int')->item(0)->nodeValue;
				$error_message = $xpath->query('//methodResponse/fault/value/struct/member/value/string')->item(0)->nodeValue;

				$log->write(sprintf($this->language->get('error_pclass'), $key, $error_code, $error_message));

				continue;
			}

			$pclasses = $this->parseResponse($nodes->item(0)->firstChild, $xml);

			while ($pclasses) {
				$pclass = array_slice($pclasses, 0, 10);
				$pclasses = array_slice($pclasses, 10);

				$pclass[3] /= 100;
				$pclass[4] /= 100;
				$pclass[5] /= 100;
				$pclass[6] /= 100;
				$pclass[9] = ($pclass[9] != '-') ? strtotime($pclass[9]) : $pclass[9];

				array_unshift($pclass, $klarna_account['merchant']);

				$this->pclasses[$key][] = array(
					'eid'          => intval($pclass[0]),
					'id'           => intval($pclass[1]),
					'description'  => $pclass[2],
					'months'       => intval($pclass[3]),
					'startfee'     => floatval($pclass[4]),
					'invoicefee'   => floatval($pclass[5]),
					'interestrate' => floatval($pclass[6]),
					'minamount'    => floatval($pclass[7]),
					'country'      => intval($pclass[8]),
					'type'         => intval($pclass[9]),
				);
			}
		} else {
			$this->error['warning'] = $this->language->get('error_log');

			$log->write(sprintf($this->language->get('error_curl'), curl_errno($curl), curl_error($curl)));
		}

		curl_close($curl);
	}
}

if (!$this->error) {
	return true;
} else {
	return false;
}