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: / var / www / html / projects / unomas / admin / controller / extension / payment /
Filename : klarna_account.php
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<?php
class ControllerExtensionPaymentKlarnaAccount extends Controller {
	private $error = array();
	private $pclasses = array();

	public function index() {
		$this->load->language('extension/payment/klarna_account');

		$this->document->setTitle($this->language->get('heading_title'));

		$this->load->model('setting/setting');

		if (($this->request->server['REQUEST_METHOD'] == 'POST') && $this->validate()) {
			$status = false;

			foreach ($this->request->post['payment_klarna_account_'] as $klarna_account) {
				if ($klarna_account['status']) {
					$status = true;

					break;
				}
			}

			$klarna_data = array(
				'klarna_account_pclasses' => $this->pclasses,
				'klarna_account_status'   => $status
			);

			$this->model_setting_setting->editSetting('payment_klarna_account', array_merge($this->request->post, $klarna_data));

			$this->session->data['success'] = $this->language->get('text_success');

			$this->response->redirect($this->url->link('marketplace/extension', 'user_token=' . $this->session->data['user_token'] . '&type=payment', true));
		}

		if (isset($this->error['warning'])) {
			$data['error_warning'] = $this->error['warning'];
		} else {
			$data['error_warning'] = '';
		}

		if (isset($this->session->data['success'])) {
			$data['success'] = $this->session->data['success'];

			unset($this->session->data['success']);
		} else {
			$data['success'] = '';
		}

		$data['breadcrumbs'] = array();

		$data['breadcrumbs'][] = array(
			'text' => $this->language->get('text_home'),
			'href' => $this->url->link('common/dashboard', 'user_token=' . $this->session->data['user_token'], true)
		);

		$data['breadcrumbs'][] = array(
			'text' => $this->language->get('text_extension'),
			'href' => $this->url->link('marketplace/extension', 'user_token=' . $this->session->data['user_token'] . '&type=payment', true)
		);

		$data['breadcrumbs'][] = array(
			'text' => $this->language->get('heading_title'),
			'href' => $this->url->link('extension/payment/klarna_account', 'user_token=' . $this->session->data['user_token'], true)
		);

		$data['action'] = $this->url->link('extension/payment/klarna_account', 'user_token=' . $this->session->data['user_token'], true);

		$data['cancel'] = $this->url->link('marketplace/extension', 'user_token=' . $this->session->data['user_token'] . '&type=payment', true);

		$data['countries'] = array();

		$data['countries'][] = array(
			'name' => $this->language->get('text_germany'),
			'code' => 'DEU'
		);

		$data['countries'][] = array(
			'name' => $this->language->get('text_netherlands'),
			'code' => 'NLD'
		);

		$data['countries'][] = array(
			'name' => $this->language->get('text_denmark'),
			'code' => 'DNK'
		);

		$data['countries'][] = array(
			'name' => $this->language->get('text_sweden'),
			'code' => 'SWE'
		);

		$data['countries'][] = array(
			'name' => $this->language->get('text_norway'),
			'code' => 'NOR'
		);

		$data['countries'][] = array(
			'name' => $this->language->get('text_finland'),
			'code' => 'FIN'
		);

		if (isset($this->request->post['payment_klarna_account'])) {
			$data['payment_klarna_account'] = $this->request->post['payment_klarna_account'];
		} else {
			$data['payment_klarna_account'] = $this->config->get('payment_klarna_account');
		}

		$this->load->model('localisation/geo_zone');

		$data['geo_zones'] = $this->model_localisation_geo_zone->getGeoZones();

		$this->load->model('localisation/order_status');

		$data['order_statuses'] = $this->model_localisation_order_status->getOrderStatuses();

		$file = DIR_LOGS . 'klarna_account.log';

		if (file_exists($file)) {
			$data['log'] = file_get_contents($file, FILE_USE_INCLUDE_PATH, null);
		} else {
			$data['log'] = '';
		}

		$data['clear'] = $this->url->link('extension/payment/klarna_account/clear', 'user_token=' . $this->session->data['user_token'], true);

		$data['header'] = $this->load->controller('common/header');
		$data['column_left'] = $this->load->controller('common/column_left');
		$data['footer'] = $this->load->controller('common/footer');

		$this->response->setOutput($this->load->view('extension/payment/klarna_account', $data));
	}

	private function validate() {
		if (!$this->user->hasPermission('modify', 'extension/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 = array();

				$header[] = 'Content-Type: text/xml';
				$header[] = 'Content-Length: ' . strlen($xml);

				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_HTTPHEADER, $header);
				curl_setopt($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);
			}
		}

		return !$this->error;
	}

	private function parseResponse($node, $document) {
		$child = $node;

		switch ($child->nodeName) {
			case 'string':
				$value = $child->nodeValue;
				break;
			case 'boolean':
				$value = (string)$child->nodeValue;

				if ($value == '0') {
					$value = false;
				} elseif ($value == '1') {
					$value = true;
				} else {
					$value = null;
				}

				break;
			case 'integer':
			case 'int':
			case 'i4':
			case 'i8':
				$value = (int)$child->nodeValue;
				break;
			case 'array':
				$value = array();

				$xpath = new DOMXPath($document);
				$entries = $xpath->query('.//array/data/value', $child);

				for ($i = 0; $i < $entries->length; $i++) {
					$value[] = $this->parseResponse($entries->item($i)->firstChild, $document);
				}

				break;
			default:
				$value = null;
		}

		return $value;
	}

	public function clear() {
		$this->load->language('extension/payment/klarna_account');

		$file = DIR_LOGS . 'klarna_account.log';

		$handle = fopen($file, 'w+');

		fclose($handle);

		$this->session->data['success'] = $this->language->get('text_success');

		$this->response->redirect($this->url->link('extension/payment/klarna_account', 'user_token=' . $this->session->data['user_token'], true));
	}
}