Shopware_Plugins_Frontend_SwagPaymentKlarna_Bootstrap

Complexity

Total Complexity

358

Size/Duplication

Total Lines	2905
Duplicated Lines	4.27 %

Coupling/Cohesion

Components	4
Dependencies	6

Importance

Changes

0

82 Methods

Rating	Name	Duplication	Size	Complexity
A	install()	0	17	2
C	update()	0	28	7
B	uninstall()	0	29	2
A	get()	0	9	3
A	getPayment()	0	10	2
A	getConnector()	0	4	1
A	getService()	0	22	2
A	enable()	0	13	2
A	disable()	0	10	2
A	getKLarnaService()	0	9	2
A	getKlarnaAddr()	0	7	2
B	createMyEvents()	0	134	2
B	onBackendOrderSaveAfter()	0	25	5
A	onBackendOrderDeleteAfter()	0	15	3
A	onBeforeUpdatePayment()	0	20	3
A	onAfterGetCustomerListQueryBuilder()	0	9	1
A	onBeforeRegister()	0	7	2
A	onPreDispatchAccount()	0	10	4
B	onPostDispatchAccount()	3	14	5
A	onGetStreetSplitService()	0	9	1
C	klarnaLog()	25	25	7
B	getKlarnaAddrByRawOrderData()	0	32	3
C	fetchStreetAndHouseNumber()	0	40	8
A	convertEncoding()	0	13	3
A	createMyPayment()	0	23	1
B	createMyForm()	0	381	1
C	createMyTranslations()	0	54	11
B	createMyAttributes()	0	98	4
A	registerMyTemplateDir()	0	10	3
A	isTemplateResponsive()	0	9	2
A	onGetControllerPathFrontend()	0	6	1
A	onGetControllerPathBackend()	0	9	1
F	onPostDispatch()	17	138	50
F	onPostDispatchCheckout()	17	179	40
D	onPostDispatchFrontendRegister()	15	43	10
A	addJsFiles()	0	8	1
C	onPreDispatchCheckout()	0	60	14
A	onLoadOrderBackendModule()	16	16	2
A	onLoadPaymentBackendModule()	16	16	2
B	updateOrderVariables()	0	28	2
A	getCountryByShop()	0	13	3
A	getCountryIsoById()	0	7	1
B	getLocale()	0	21	6
A	getCheckoutOptions()	0	16	3
B	getCheckoutCart()	0	29	5
B	getCheckoutMerchant()	0	42	1
C	getCheckoutAddress()	9	37	8
B	getCheckoutCustomer()	0	15	5
A	getLabel()	0	4	1
A	getVersion()	0	10	2
A	getInfo()	0	8	1
A	onInitResourceKlarnaCheckoutConnector()	0	15	2
A	onInitResourceKlarnaService()	0	8	1
A	addLessFiles()	0	15	1
A	assertMinimumVersion()	0	8	2
A	onCheckoutSaveShippingKlarna()	0	14	2
A	onCheckoutExpress()	0	8	1
C	klarnaMapping()	6	46	12
C	getColorConfigOptions()	0	31	13
B	getViewConfig()	0	34	1
A	getShowLoginConfig()	0	4	2
B	getAllCountries()	0	27	2
A	getKlarnaDisplayType()	0	7	2
A	getOtherPayments()	0	12	3
A	getShowCheckoutButton()	0	8	3
B	getPositionOrder()	0	18	5
A	buildCDNLink()	0	18	2
A	getKlarnaCustomerData()	0	21	1
B	getTranslationArray()	0	102	1
B	updatePayment()	0	29	5
A	isKlarnaUser()	0	14	3
B	removeKlarnaUsers()	0	42	2
A	checkValidKlarnaCountry()	0	8	2
C	getExternalPaymentMethods()	0	52	10
A	getFee()	0	16	3
A	getRedirectUri()	0	7	1
D	getImageForKlarna()	0	26	9
A	filterPayments()	0	12	3
A	isPaymentAllowed()	0	16	3
A	buildKlarnaVersion()	0	12	1
A	isKpmActive()	0	15	1
A	isKlarnaKcoPaymentActive()	0	12	4

<?php
/**
 * Shopware
 * Copyright © 2015 shopware AG
 *
 * According to our dual licensing model, this program can be used either
 * under the terms of the GNU Affero General Public License, version 3,
 * or under a proprietary license.
 *
 * The texts of the GNU Affero General Public License with an additional
 * permission and of our proprietary license can be found at and
 * in the LICENSE file you have received along with this program.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
 * GNU Affero General Public License for more details.
 *
 * "Shopware" is a registered trademark of shopware AG.
 * The licensing of the program under the AGPLv3 does not imply a
 * trademark license. Therefore any rights, title and interest in
 * our trademarks remain entirely with us.
 */

use Doctrine\DBAL\Connection;
use Shopware\Components\StreetSplitService;

# Load dummy interface CSRFWhitelistAware for SW < 5.2
require_once __DIR__ . '/Components/CSRFWhitelistAware.php';

/**
 * Shopware Klarna Plugin
 */
class Shopware_Plugins_Frontend_SwagPaymentKlarna_Bootstrap extends Shopware_Components_Plugin_Bootstrap
{
    /**
     * Get cached countries
     * @var array
     */
    private $countries = array();

    /**
     * The klarna payment object.
     * @var \Shopware\Models\Payment\Payment
     */
    private $klarnaPayment = null;
    
    /**
     * Instance of API-Object
     * @var object
     */
    private $klarnaService = null;

    /**
     * Instance of klarna address object
     * @var object
     */
    private $klarnaAddr = null;

    /**
     * @return array
     */
    public function install($isUpdate = false)
    {
        $this->createMyEvents();
        if (!$isUpdate) {
            $this->createMyPayment();
        }
        $this->createMyForm();
        $this->createMyTranslations();
        $this->createMyAttributes();

        $aReturn = array(
            'success' => true,
            'invalidateCache' => array('backend')
        );
        
        return $aReturn;
    }

    /**
     * @param string $version
     * @return bool
     */
    public function update($version)
    {
        if ($version == '0.0.1') {
            return false;
        }

        if (version_compare($version, '2.0.0', '<')) {
            $em = $this->get('models');
            $form = $this->Form();
            if ($form->getElement('hideCheckoutSteps')) {
                $em->remove($form->getElement('hideCheckoutSteps'));
            }
            if ($form->getElement('expressButton')) {
                $em->remove($form->getElement('expressButton'));
            }
            if ($form->getElement('expressButtonLayer')) {
                $em->remove($form->getElement('expressButtonLayer'));
            }
            if ($form->getElement('noAccountCheckout')) {
                $em->remove($form->getElement('noAccountCheckout'));
            }
            $em->flush();

            $this->updatePayment();
        }

        return $this->install(true);
    }

    /**
     * @return bool
     */
    public function uninstall()
    {
        try {
            $this->get('models')->removeAttribute(
                's_order_attributes',
                'swag_klarna',
                'status'
            );
            $this->get('models')->removeAttribute(
                's_order_attributes',
                'swag_klarna',
                'invoice_number'
            );
            $this->get('models')->removeAttribute(
                's_order_details_attributes',
                'swag_klarna',
                'invoice_number'
            );
            $this->get('models')->generateAttributeModels(
                array(
                    's_order_attributes',
                    's_order_details_attributes'
                )
            );
        } catch (Exception $e) {

Consider adding a comment why this CATCH block is empty.

        }

        return true;
    }

    /**
     * @param string $name
     * @return mixed
     */
    public function get($name)
    {
        if (version_compare(Shopware::VERSION, '4.2.0', '<') && Shopware::VERSION != '___VERSION___') {
            $name = ucfirst($name);
            return $this->Application()->Bootstrap()->getResource($name);
        }

        return parent::get($name);
    }

    /**
     * Fetches and returns klarna payment row instance.
     *
     * @return \Shopware\Models\Payment\Payment
     */
    public function getPayment()
    {
        if ($this->klarnaPayment === null) {
            $this->klarnaPayment = $this->Payments()->findOneBy(
                array('name' => 'klarna_checkout')
            );
        }

        return $this->klarnaPayment;
    }

    /**
     * @return \Klarna_Checkout_Connector
     */
    public function getConnector()
    {
        return $this->Application()->KlarnaCheckoutConnector();
    }

    /**
     * @return \Klarna
     */
    public function getService()
    {
        /** @var Klarna $service */
        $service = $this->Application()->KlarnaService();
        $service->setActivateInfo('flags', KlarnaFlags::RSRV_SEND_BY_EMAIL);
        $service->setVersion($this->buildKlarnaVersion($service));
        $service->config(
            $this->Config()->get('merchantId'),
            $this->Config()->get('sharedSecret'),
            KlarnaCountry::DE,
            KlarnaLanguage::DE,
            KlarnaCurrency::EUR,
            $this->Config()->get('testDrive') ? Klarna::BETA : Klarna::LIVE,
            'pdo',
            array(

array('table' => 's_klarna_pclasses', 'pdo' => $this->Application()->Db()->getConnection()) is of type array<string,?,{"table":"string","pdo":"?"}>, but the function expects a string.

                'table' => 's_klarna_pclasses',
                'pdo' => $this->Application()->Db()->getConnection()
            )
        );

        return $service;
    }

    /**
     * Activate the plugin klarna plugin.
     * Sets the active flag in the payment row.
     *
     * @return bool
     */
    public function enable()
    {
        $payment = $this->getPayment();
        if ($payment !== null) {
            $payment->setActive(true);
            $this->get('models')->flush($payment);
        }

        return array(
            'success' => true,
            'invalidateCache' => array('backend', 'frontend')
        );
    }

    /**
     * Disable plugin method and sets the active flag in the payment row
     *
     * @return bool
     */
    public function disable()
    {
        $payment = $this->getPayment();
        if ($payment !== null) {
            $payment->setActive(false);
            $this->get('models')->flush($payment);
        }

        return true;
    }
    
    /**
     * Returns an instance of klarna object
     * 
     * @param void
     * @return \Klarna
     */
    public function getKLarnaService() {
        if ($this->klarnaService === null) {
            require_once __DIR__ . '/Components/Klarna/Klarna.php';
            require_once __DIR__ . '/Components/Klarna/transport/xmlrpc-3.0.0.beta/lib/xmlrpc.inc';
            $this->klarnaService = new Klarna();
        }

        return $this->klarnaService;
    }
    
    /**
     * Returns an instance of klarna address object
     * 
     * @param void
     * @return object
     */
    public function getKlarnaAddr() {
        if ($this->klarnaAddr === null) {
            $this->klarnaAddr = new KlarnaAddr();
        }
        
        return $this->klarnaAddr;
    }

    /**
     * Creates and subscribe the events and hooks.
     */
    protected function createMyEvents()
    {
        // BACKEND
        $this->subscribeEvent(
            'Enlight_Controller_Action_PostDispatch_Backend_Order',
            'onLoadOrderBackendModule'
        );
        $this->subscribeEvent(
            'Enlight_Controller_Action_PostDispatch_Backend_Payment',
            'onLoadPaymentBackendModule'
        );

        $this->subscribeEvent(
            'Enlight_Controller_Dispatcher_ControllerPath_Backend_PaymentKlarna',
            'onGetControllerPathBackend'
        );

        // FRONTEND
        $this->subscribeEvent(
            'Enlight_Controller_Dispatcher_ControllerPath_Frontend_PaymentKlarna',
            'onGetControllerPathFrontend'
        );

        $this->subscribeEvent(
            'Enlight_Controller_Action_PostDispatch_Frontend_Checkout',
            'onPostDispatchCheckout'
        );

        $this->subscribeEvent(
            'Enlight_Controller_Action_PreDispatch_Frontend_Checkout',
            'onPreDispatchCheckout'
        );

        $this->subscribeEvent(
            'Enlight_Controller_Action_Frontend_Checkout_Express',
            'onCheckoutExpress'
        );

        $this->subscribeEvent(
            'Enlight_Controller_Action_Frontend_Checkout_saveShippingKlarna',
            'onCheckoutSaveShippingKlarna'
        );

        $this->subscribeEvent(
            'Enlight_Controller_Action_PostDispatch',
            'onPostDispatch',
            110
        );

        // CONNECTOR
        $this->subscribeEvent(
            'Enlight_Bootstrap_InitResource_KlarnaCheckoutConnector',
            'onInitResourceKlarnaCheckoutConnector'
        );

        // SERVICES
        $this->subscribeEvent(
            'Enlight_Bootstrap_InitResource_KlarnaService',
            'onInitResourceKlarnaService'
        );

        $this->subscribeEvent(
            'Enlight_Bootstrap_InitResource_StreetSplitService',
            'onGetStreetSplitService'
        );

        $this->subscribeEvent(
            'Enlight_Controller_Action_PostDispatch_Frontend_Register',
            'onPostDispatchFrontendRegister'
        );

        $this->subscribeEvent(
            'Enlight_Controller_Action_PreDispatch_Frontend_Account',
            'onPreDispatchAccount'
        );

        $this->subscribeEvent(
            'Enlight_Controller_Action_PostDispatch_Frontend_Account',
            'onPostDispatchAccount'
        );
        $this->subscribeEvent(
            'Enlight_Controller_Action_PostDispatch_Frontend_Checkout',
            'onPostDispatchAccount'
        );

        $this->subscribeEvent(
            'Shopware\Models\Customer\Repository::getListQueryBuilder::after',
            'onAfterGetCustomerListQueryBuilder'
        );

        $this->subscribeEvent(
            'Theme_Compiler_Collect_Plugin_Javascript',
            'addJsFiles'
        );

        // LESS
        // Subscribe the needed event for less merge and compression
        $this->subscribeEvent(
            'Theme_Compiler_Collect_Plugin_Less',
            'addLessFiles'
        );

        #########
        # HOOKS   #
        #########

        if (version_compare(Shopware::VERSION, '5.2.0', '>=')) {
            $this->subscribeEvent(
                'sAdmin::saveRegisterAction::before',
                'onBeforeRegister'
            );
        }
        else {
            $this->subscribeEvent(
                'sAdmin::sSaveRegister::before',
                'onBeforeRegister'
            );
        }

        $this->subscribeEvent(
            'Shopware_Controllers_Backend_Payment::updatePaymentsAction::before',
            'onBeforeUpdatePayment'
        );
        
        $this->subscribeEvent(
            'Shopware_Controllers_Backend_Order::saveAction::after',
            'onBackendOrderSaveAfter'
        );    
        $this->subscribeEvent(
            'Shopware_Controllers_Backend_Order::deleteAction::after',
            'onBackendOrderDeleteAfter'
        );          
        
    }

    /**
     * Method will be triggered on clicking save on order details
     * 
     * @param Enlight_Hook_HookArgs $args
     * @return void
     */
    public function onBackendOrderSaveAfter(Enlight_Hook_HookArgs $args) {
        $orderDataRaw = $args->getSubject()->Request()->getPost();
        $paymentName = $orderDataRaw['payment'][0]['name'];
        
        if ($paymentName == 'klarna_checkout' || $paymentName == 'klarna_account' || $paymentName == 'klarna_invoice') {
            // require_once __DIR__ . '/Models/lightConnector.php';

45% of this comment could be valid code. Did you maybe forget this after debugging?

            
            $klarnaService = $this->getService();
            
            $klarnaAddrBilling = $this->getKlarnaAddrByRawOrderData($orderDataRaw,'billing');
            $klarnaAddrShipping = $this->getKlarnaAddrByRawOrderData($orderDataRaw,'shipping');
            
            $orderId = $orderDataRaw['id'];

$orderId is not used, you could remove the assignment.

            $transactionId = $orderDataRaw['transactionId'];
            $klarnaOrderId = $orderDataRaw['temporaryId'];

$klarnaOrderId is not used, you could remove the assignment.

            
            $klarnaService->setAddress(KlarnaFlags::IS_BILLING, $klarnaAddrBilling);

It seems like $klarnaAddrBilling defined by $this->getKlarnaAddrByRawOrderData($orderDataRaw, 'billing') on line 430 can also be of type false; however, Klarna::setAddress() does only seem to accept object<KlarnaAddr>, did you maybe forget to handle an error condition?

            $klarnaService->setAddress(KlarnaFlags::IS_SHIPPING, $klarnaAddrShipping);

It seems like $klarnaAddrShipping defined by $this->getKlarnaAddrByRawOrderData($orderDataRaw, 'shipping') on line 431 can also be of type false; however, Klarna::setAddress() does only seem to accept object<KlarnaAddr>, did you maybe forget to handle an error condition?

            try {
                $klarnaService->update($transactionId);
            } catch (Exception $e) {
                throw new Exception($e->getMessage());
            }
        }
    }
    
    /**
     * Method will be triggered on clicking delete on order overview
     * 
     * @param Enlight_Hook_HookArgs $args
     * @return void
     */
    public function onBackendOrderDeleteAfter(Enlight_Hook_HookArgs $args) {
        $orderDataRaw = $args->getSubject()->Request()->getPost();
        $paymentName = $orderDataRaw['payment'][0]['name'];
        
        if ($paymentName == 'klarna_checkout') {
            
            $klarnaService = $this->getService();
            $transactionId = $orderDataRaw['transactionId'];
            try {
                $klarnaService->cancelReservation($transactionId);
            } catch (Exception $e) {
                throw new Exception($e->getMessage());
            }
        }
    }    
    
    
    /**
     * Hook to change the absolute media-path to a normalized virtual path.
     * @param Enlight_Hook_HookArgs $args
     */
    public function onBeforeUpdatePayment(Enlight_Hook_HookArgs $args)
    {
        if (!$this->assertMinimumVersion('5.1')) {
            return;
        }

        /** @var Zend_Controller_Request_Http $request */
        $request = $args->getSubject()->Request();
        $attributes = $request->getParam('attribute');
        $attribute = reset($attributes);

        if (empty($attribute['swagKlarnaKlarnaMedia'])) {
            return;
        }

        $mediaService = $this->get('shopware_media.media_service');
        $attribute['swagKlarnaKlarnaMedia'] = $mediaService->normalize($attribute['swagKlarnaKlarnaMedia']);
        $attributes[0] = $attribute;
        $request->setParam('attribute', $attributes);
    }

    /**
     * Needed to implement an additional "where"-condition to filter temporary klarna-customers, so they won't be shown
     * in the backend anymore.
     *
     * @param Enlight_Hook_HookArgs $args
     */
    public function onAfterGetCustomerListQueryBuilder(Enlight_Hook_HookArgs $args)
    {
        /** @var \Doctrine\DBAL\Query\QueryBuilder $builder */
        $builder = $args->getReturn();

        $builder->andWhere('billing.lastName != :lastName')->setParameter('lastName', 'Klarna Checkout');

        $args->setReturn($builder);
    }

    /**
     * Sets the default-payment to klarna checkout.
     */
    public function onBeforeRegister()
    {
        $register = $this->Application()->Session()->offsetGet('sRegister');
        if ($register["payment"]["object"]["id"] === $this->getPayment()->getId()) {
            unset($register["payment"]["object"]["id"]);
        }
    }

    /**
     * Only used in emotion-template.
     * Logs out the user when entering the
     * @param Enlight_Event_EventArgs $args
     */
    public function onPreDispatchAccount(Enlight_Event_EventArgs $args)
    {
        /** @var Shopware_Controllers_Frontend_Account $subject */
        $subject = $args->getSubject();
        $request = $subject->Request();

        if ($this->isKlarnaUser() && !$this->isTemplateResponsive() && $request->getActionName() != 'savePayment') {
            $subject->logoutAction();
        }
    }

    /**
     * Needed to delete temporary accounts, when the user changes the payment.
     *
     * @param Enlight_Controller_ActionEventArgs $args
     */
    public function onPostDispatchAccount(Enlight_Controller_ActionEventArgs $args)
    {
        $request = $args->getRequest();
        $response = $args->getResponse();
        if (!$this->isKlarnaUser() || !$request->isDispatched() || $response->isException() || $request->getActionName() == 'confirm') {

This code seems to be duplicated across your project.

            return;
        }
        $session = Shopware()->Session();
        //Logout user
        $session->offsetUnset('sUserId');
        $session->offsetSet('sRegisterFinished', false);
        //Remove all temporary klarna-users older than 24 hours
        $this->removeKlarnaUsers();
    }

    public function onGetStreetSplitService()
    {
        $this->Application()->Loader()->registerNamespace(
            'Shopware\Components',
            __DIR__ . '/Components/'
        );

        return new StreetSplitService();
    }
    
    /**
     * Logs a message
     * 
     * @param string $message
     * @param int $logLevelMessage
     * @param mixed $mPrintableElement
     * @return void
     */
    public function klarnaLog($message, $logLevelMessage=1, $mPrintableElement=null) {

This method seems to be duplicated in your project.

        $configname = 'klarnaLogLevel';
        $elementId = Shopware()->Db()->fetchOne('SELECT id FROM s_core_config_elements WHERE name = ?', [$configname]);
        $logLevelConfigSetting = Shopware()->Db()->fetchOne('SELECT value FROM s_core_config_values WHERE element_id = ?', [$elementId]);
        $logLevelConfigSetting = unserialize($logLevelConfigSetting);
        $logLevelSetting = (is_numeric($logLevelConfigSetting) && $logLevelConfigSetting >=0 && $logLevelConfigSetting <=4) ? (int)$logLevelConfigSetting : 1;
        
        if ($logLevelMessage <= $logLevelSetting) {
            $prefix = "[".date('Y-m-d H:i:s')."] ";
            $debugBacktrace = '';
            if ($logLevelSetting >= 4) {
                $debugBacktrace = print_r(debug_backtrace(DEBUG_BACKTRACE_IGNORE_ARGS),true);
            }
            $sPrintableElementMessage = '';
            if ($mPrintableElement !== null) {
                $sPrintableElementMessage = print_r($mPrintableElement,true);
            }
            $fullMessage = $prefix.$message."\n".$sPrintableElementMessage.$debugBacktrace;
            $shopPath = Shopware()->DocPath();
            $logfilePath = $shopPath.'/var/log/klarnaTrace.log';
            $fileHandler = fopen($logfilePath,'a');
            fwrite($fileHandler, $fullMessage);
            fclose($fileHandler);
        }
    }
    
    /**
     * Method returns matching address parts by address type
     * 
     * @param array $orderDataRaw
     * @param string $type
     */
    protected function getKlarnaAddrByRawOrderData($orderDataRaw, $type) {
        $klarnaAddr = false;
        $baseData = (isset($orderDataRaw[$type][0])) ? $orderDataRaw[$type][0] : false;
        $baseData = $this->convertEncoding($baseData);
        
        if ($baseData) {

The expression $baseData of type array is implicitly converted to a boolean; are you sure this is intended? If so, consider using ! empty($expr) instead to make it clear that you intend to check for an array without elements.

            $addressParts = $this->fetchStreetAndHouseNumber($baseData);

            $manager = $this->get('models');
            $repository = 'Shopware\Models\Country\Country';
            $repository = $manager->getRepository($repository);
            $country = $repository->findOneBy(array('id' => $baseData['countryId']));
            $countryiso = $country->getIso();

            $klarnaAddr =  new KlarnaAddr();
            $klarnaAddr->setEmail($orderDataRaw['customerEmail']);
            $klarnaAddr->setFirstName($baseData['firstName']);
            $klarnaAddr->setLastName($baseData['lastName']);
            $klarnaAddr->setTelno($baseData['phone']);
            $klarnaAddr->setStreet($addressParts['street']);
            $klarnaAddr->setHouseNumber($addressParts['streetnr']);
            $klarnaAddr->setHouseExt($addressParts['streetnr_extension']);
            $klarnaAddr->setCompanyName($baseData['company']);
            $klarnaAddr->setCareof($baseData['department']);
            $klarnaAddr->setZipCode($baseData['zipCode']);
            $klarnaAddr->setCity($baseData['city']);
            $klarnaAddr->setCountry($countryiso);
        }

        $this->klarnaLog('Update order address from backend with following address data:',3,$klarnaAddr);
        return $klarnaAddr;
    }


    /**
     * Method splits street, streetnr and streetnr extension from basestring
     *
     * @param array $baseData
     * @return array
     */
    protected function fetchStreetAndHouseNumber($baseData) {

        $addressParts = explode(' ', $baseData['street']);
        $index = 0;
        $street = $streetnr = '';
        $houseNumberFound = false;

        foreach ($addressParts as $addressPart) {
            if (!$houseNumberFound) {
                // check if current addresspart is numeric
                $houseNumberFound = is_numeric($addressPart);
            }

            $index++;
            if ($index == count($addressParts) || $houseNumberFound) {
                // at least last element should be streetnr
                if (!empty($streetnr)) $streetnr .= ' ';
                $streetnr .= (string)$addressPart;
            }
            else  {
                $street .= (string)' '.$addressPart;
            }
        }

        $streetnr_extension = '';
        if (!empty($baseData['additionalAddressLine1'])) {
            $streetnr_extension .= $baseData['additionalAddressLine1'];
        }
        if (!empty($baseData['additionalAddressLine2'])) {
            $streetnr_extension .= "\n".$baseData['additionalAddressLine2'];
        }

        $return = array(
            'street' => $street,
            'streetnr' => $streetnr,
            'streetnr_extension' => $streetnr_extension,
        );

        return $return;
    }
    

    /**
     * Converts encoding in all string fields of an array
     * 
     * @param array $data
     * @return array
     */
    protected function convertEncoding($data) {
        $out = array();
        foreach ($data as $key=>$value) {
            if (is_string($value)) {
                $value = mb_convert_encoding($value, 'ISO-8859-1', 'UTF-8');
                // $value = utf8_decode($value);

50% of this comment could be valid code. Did you maybe forget this after debugging?

            }
            
            $out[$key] = $value;
        }
        
        return $out;
    }

    /**
     * Creates and save the payment row.
     */
    protected function createMyPayment()
    {
        /** @var \Shopware\Components\Model\ModelManager $manager */
        $manager = $this->get('models');
        $repository = 'Shopware\Models\Country\Country';
        $repository = $manager->getRepository($repository);
        $countries = array(
            $repository->findOneBy(array('iso' => 'SE')),
            $repository->findOneBy(array('iso' => 'DE')),
            $repository->findOneBy(array('iso' => 'NO')),
            $repository->findOneBy(array('iso' => 'FI')),
            $repository->findOneBy(array('iso' => 'AT'))
        );
        $this->createPayment(
            array(
                'name' => 'klarna_checkout',
                'description' => $this->getLabel(),
                'action' => 'payment_klarna',
                'additionalDescription' => '',
                'countries' => $countries
            )
        );
    }

    /**
     * Creates and stores the payment config form.
     */
    protected function createMyForm()
    {
        $form = $this->Form();

        // API settings
        $form->setElement(
            'boolean',
            'testDrive',
            array(
                'label' => 'Testmodus aktvieren',
                'value' => false,
                'scope' => \Shopware\Models\Config\Element::SCOPE_SHOP,
                'position' => 0
            )
        );

        $form->setElement(
            'text',
            'merchantId',
            array(
                'label' => 'API-HändlerID (EID)',
                'required' => true,
                'scope' => \Shopware\Models\Config\Element::SCOPE_SHOP,
                'position' => 1
            )
        );

        $form->setElement(
            'text',
            'sharedSecret',
            array(
                'label' => 'API-Secret (sharedsecret)',
                'required' => true,
                'scope' => \Shopware\Models\Config\Element::SCOPE_SHOP,
                'position' => 2
            )
        );

        $form->setElement(
            'number',
            'termSiteId',
            array(
                'label' => 'Shopseite mit den Geschäftsbedingungen',
                'value' => 4,
                'scope' => \Shopware\Models\Config\Element::SCOPE_SHOP,
                'position' => 3
            )
        );

        $form->setElement(
            'boolean',
            'allowSeparateShippingAddress',
            array(
                'label' => 'Abweichende Lieferadresse erlauben',
                'value' => true,
                'scope' => \Shopware\Models\Config\Element::SCOPE_SHOP,
                'position' => 4
            )
        );

        $form->setElement(
            'boolean',
            'supportPackstation',
            array(
                'label' => 'DHL Packstation unterstützen',
                'value' => false,
                'scope' => \Shopware\Models\Config\Element::SCOPE_SHOP,
                'position' => 5,
                'helpText' => 'Die abweichende Lieferadresse muss erlaubt sein'
            )
        );

        $form->setElement(
            'text',
            'postnumberField',
            array(
                'label' => 'Alternatives Feld für die DHL-Postnummer',
                'value' => 'attribute1',
                'scope' => \Shopware\Models\Config\Element::SCOPE_SHOP,
                'position' => 6
            )
        );

        $form->setElement(
            'boolean',
            'mandatoryPhone',
            array(
                'label' => 'Telefonummer als Pflichtfeld',
                'value' => false,
                'scope' => \Shopware\Models\Config\Element::SCOPE_SHOP,
                'position' => 7
            )
        );

        $form->setElement(
            'boolean',
            'mandatoryBirthday',
            array(
                'label' => 'Geburtsdatum als Pflichtfeld',
                'value' => false,
                'scope' => \Shopware\Models\Config\Element::SCOPE_SHOP,
                'position' => 8
            )
        );

        $form->setElement(
            'boolean',
            'disableAutofocus',
            array(
                'label' => 'Autofokus deaktivieren',
                'value' => false,
                'scope' => \Shopware\Models\Config\Element::SCOPE_SHOP,
                'position' => 9
            )
        );

        $form->setElement(
            'boolean',
            'showKlarnaButton',
            array(
                'label' => 'Klarna Checkout-Button anzeigen',
                'value' => true,
                'scope' => \Shopware\Models\Config\Element::SCOPE_SHOP,
                'position' => 10
            )
        );

        $form->setElement(
            'boolean',
            'preFillCheckout',
            array(
                'label' => 'Klarna Checkout für registrierte Kunden vorausfüllen',
                'value' => true,
                'scope' => \Shopware\Models\Config\Element::SCOPE_SHOP,
                'position' => 11
            )
        );

        $form->setElement(
            'color',
            'checkoutButtonColor',
            array(
                'label' => 'Checkout Button Farbe',
                'value' => null,
                'scope' => \Shopware\Models\Config\Element::SCOPE_SHOP,
                'position' => 12
            )
        );

        $form->setElement(
            'color',
            'checkoutButtonTextColor',
            array(
                'label' => 'Checkout Buttontext Farbe',
                'value' => null,
                'scope' => \Shopware\Models\Config\Element::SCOPE_SHOP,
                'position' => 13
            )
        );

        $form->setElement(
            'color',
            'checkoutCheckboxColor',
            array(
                'label' => 'Checkout Checkbox Farbe',
                'value' => null,
                'scope' => \Shopware\Models\Config\Element::SCOPE_SHOP,
                'position' => 14
            )
        );

        $form->setElement(
            'color',
            'checkoutCheckboxCheckmarkColor',
            array(
                'label' => 'Checkout Checkbox Häckchen Farbe',
                'value' => null,
                'scope' => \Shopware\Models\Config\Element::SCOPE_SHOP,
                'position' => 15
            )
        );

        $form->setElement(
            'color',
            'checkoutHeaderColor',
            array(
                'label' => 'Checkout Header Farbe',
                'value' => null,
                'scope' => \Shopware\Models\Config\Element::SCOPE_SHOP,
                'position' => 16
            )
        );

        $form->setElement(
            'color',
            'checkoutLinkColor',
            array(
                'label' => 'Checkout Link Farbe',
                'value' => null,
                'scope' => \Shopware\Models\Config\Element::SCOPE_SHOP,
                'position' => 17
            )
        );

        $form->setElement(
            'boolean',
            'KlarnaExternalPayments',
            array(
                'label' => 'Externe Zahlungsarten im Klarna Checkout darstellen',
                'value' => null,
                'scope' => \Shopware\Models\Config\Element::SCOPE_SHOP,
                'helpText' => 'Ihr Klarna-Konto muss für diese Funktion freigeschaltet werden',
                'position' => 18
            )
        );

        $form->setElement(
            'select',
            'displayType',
            array(
                'label' => 'Klarna Checkout Darstellungs-Art',
                'value' => 1,
                'store' => array(
                    array(1, 'Tab-Darstellung'),
                    array(2, 'Nur Klarna Checkout-Darstellung'),
                    array(3, 'Einseiten-Darstellung')
                ),
                'scope' => \Shopware\Models\Config\Element::SCOPE_SHOP,
                'position' => 19
            )
        );

        $form->setElement(
            'boolean',
            'showB2bSelect',
            array(
                'label' => 'B2B-Auswahl anzeigen',
                'value' => true,
                'scope' => \Shopware\Models\Config\Element::SCOPE_SHOP,
                'helpText' => 'In dem Klarna Checkout wird eine Auswahl "Privatkunde / Firma" angezeigt',
                'position' => 20
            )
        );

        $form->setElement(
            'boolean',
            'showLoginPanel',
            array(
                'label' => 'Login-Formular anzeigen',
                'value' => true,
                'scope' => \Shopware\Models\Config\Element::SCOPE_SHOP,
                'helpText' => 'In dem Klarna Checkout wird ein Login-Formular angezeigt',
                'position' => 21
            )
        );

        $form->setElement(
            'boolean',
            'showMiniBasket',
            array(
                'label' => 'Warenkorb anzeigen',
                'value' => true,
                'scope' => \Shopware\Models\Config\Element::SCOPE_SHOP,
                'helpText' => 'In dem Klarna Checkout wird eine kleine Übersicht des Warenkorbs angezeigt',
                'position' => 22
            )
        );

        $form->setElement(
            'boolean',
            'showDispatch',
            array(
                'label' => 'Lieferland & Versandarten anzeigen',
                'value' => true,
                'scope' => \Shopware\Models\Config\Element::SCOPE_SHOP,
                'helpText' => 'In dem Klarna Checkout wird eine Lieferland- sowie Versandarten-Auswahl angezeigt',
                'position' => 23
            )
        );

        $form->setElement(
            'select',
            'positionOrder',
            array(
                'label' => 'Reihenfolge der Elemente',
                'value' => 1,
                'store' => array(
                    array(1, 'Login-Formular, Mini-Warenkorb, Versandauswahl, Zahlungsauswahl'),
                    array(2, 'Login-Formular, Mini-Warenkorb, Zahlungsauswahl, Versandauswahl'),
                    array(3, 'Versandauswahl, Zahlungsauswahl, Login-Formular, Mini-Warenkorb'),
                    array(4, 'Zahlungsauswahl, Versandauswahl, Login-Formular, Mini-Warenkorb')
                ),
                'scope' => \Shopware\Models\Config\Element::SCOPE_SHOP,
                'helpText' => 'Die \'Zahlungsauswahl\' wird nur in der \'Einseitig\'-Darstellung angezeigt.',
                'position' => 24
            )
        );

        $form->setElement(
            'boolean',
            'partPaymentWidget',
            array(
                'label' => 'Teilzahlungs-Widget auf der Detailseite anzeigen',
                'value' => true,
                'scope' => \Shopware\Models\Config\Element::SCOPE_SHOP,
                'position' => 25
            )
        );

        $form->setElement(
            'boolean',
            'convertShippingFee',
            array(
                'label' => 'Versandkosten in eine Bestellposition umwandeln',
                'value' => true,
                'scope' => \Shopware\Models\Config\Element::SCOPE_SHOP,
                'position' => 26
            )
        );

        $form->setElement(
            'select',
            'statusId',
            array(
                'label' => 'Zahlstatus nach der Bestellung',
                'value' => 18,
                'store' => 'base.PaymentStatus',
                'displayField' => 'description',
                'valueField' => 'id',
                'scope' => \Shopware\Models\Config\Element::SCOPE_SHOP,
                'position' => 27
            )
        );

        $form->setElement(
            'select',
            'activateStatusId',
            array(
                'label' => 'Zahlungsstatus nach der Aktivierung',
                'value' => 12,
                'store' => 'base.PaymentStatus',
                'displayField' => 'description',
                'valueField' => 'id',
                'scope' => \Shopware\Models\Config\Element::SCOPE_SHOP,
                'position' => 28
            )
        );

        $form->setElement(
            'select',
            'cancelStatusId',
            array(
                'label' => 'Zahlungsstatus nach der Stornierung',
                'value' => 17,
                'store' => 'base.PaymentStatus',
                'displayField' => 'description',
                'valueField' => 'id',
                'scope' => \Shopware\Models\Config\Element::SCOPE_SHOP,
                'position' => 29
            )
        );
        
        $form->setElement(
            'select',
            'klarnaLogLevel',
            array(
                'label' => 'Detaillevel der Logeinträge zur Fehlerverfolgung',
                'value' => 0,
                'store' => array(
                    array(0, 'Nichts protokollieren'),
                    array(1, 'Nur Fehler protokollieren'),
                    array(2, 'Fehler und Warnungen protokollieren'),
                    array(3, 'Alle Meldungen protokollieren'),
                    array(4, 'Alle Meldungen und zusätzlich Entwicklerinformationen protokollieren (Große Logdateien!)'),
                ),
                'scope' => \Shopware\Models\Config\Element::SCOPE_SHOP,
                'helpText' => 'Diese Einstellmöglichkeit dient vor allem der Nachverfolgung von Fehlern im Ablauf. Die Logdatei finden Sie unter var/log/klarnaTrace.log ihrer Shopware-Installation.',
                'position' => 30
            )
        );
    }

    /**
     *
     */
    public function createMyTranslations()
    {
        $form = $this->Form();
        $translations = $this->getTranslationArray();

        // In 4.2.2 we introduced a helper function for this, so we can skip the custom logic
        if ($this->assertMinimumVersion('4.2.2')) {
            $this->addFormTranslations($translations);
            return true;
        }

        $shopRepository = Shopware()->Models()->getRepository('\Shopware\Models\Shop\Locale');
        foreach ($translations as $locale => $snippets) {
            /** @var \Shopware\Models\Shop\Locale|null $localeModel */
            $localeModel = $shopRepository->findOneBy(array('locale' => $locale));
            if ($localeModel === null) {
                continue;
            }
            foreach ($snippets as $element => $snippet) {
                $translationModel = null;
                //get the form element by name
                $elementModel = $form->getElement($element);

                //not found? continue with next snippet
                if ($elementModel === null) {
                    continue;
                }

                // Try to load existing translation
                foreach ($elementModel->getTranslations() as $translation) {
                    if ($translation->getLocale()->getLocale() == $locale) {
                        $translationModel = $translation;
                        break;
                    }
                }

                // If none found create a new one
                if (!$translationModel) {
                    $translationModel = new \Shopware\Models\Config\ElementTranslation();
                    $translationModel->setLocale($localeModel);
                    //add the translation to the form element
                    $elementModel->addTranslation($translationModel);
                }

                if ($snippet['label']) {
                    $translationModel->setLabel($snippet['label']);
                }

                if ($snippet['description']) {
                    $translationModel->setDescription($snippet['description']);
                }
            }
        }
    }

    /**
     *
     */
    public function createMyAttributes()
    {
        try {
            $this->get('models')->addAttribute(
                's_order_details_attributes',
                'swag_klarna',
                'invoice_number',
                'VARCHAR(255)'
            );
        } catch (Exception $e) {

Consider adding a comment why this CATCH block is empty.

        }

        $this->get('models')->generateAttributeModels(
            array(
                's_order_details_attributes'
            )
        );

        try {
            $this->get('models')->addAttribute(
                's_order_attributes',
                'swag_klarna',
                'status',
                'VARCHAR(255)'
            );
            $this->get('models')->addAttribute(
                's_order_attributes',
                'swag_klarna',
                'invoice_number',
                'VARCHAR(255)'
            );

            $this->get('models')->addAttribute(
                's_core_paymentmeans_attributes',
                'swag_klarna',
                'show_in_klarna_iframe',
                'int(11)'
            );
            $this->get('models')->addAttribute(
                's_core_paymentmeans_attributes',
                'swag_klarna',
                'allow_in_payment_container',
                'int(11)'
            );
            $this->get('models')->addAttribute(
                's_core_paymentmeans_attributes',
                'swag_klarna',
                'klarna_media',
                'VARCHAR(255)'
            );
        } catch (Exception $e) {

Consider adding a comment why this CATCH block is empty.

        }

        $this->get('models')->generateAttributeModels(
            array(
                's_order_attributes',
                's_core_paymentmeans_attributes'
            )
        );
        
        if ($this->assertMinimumVersion('5.2')) {
            $this->get('shopware_attribute.crud_service')->update(
                's_core_paymentmeans_attributes',
                'swag_klarna_show_in_klarna_iframe',
                'boolean',
                [
                    'label' => 'In Klarna Checkout einbinden',
                    'helpText' => 'Bindet die Zahlungsart direkt in das Klarna iFrame ein',
                    'displayInBackend' => true,
                    'pluginId' => $this->getId()
                ]
            );
            $this->get('shopware_attribute.crud_service')->update(
                's_core_paymentmeans_attributes',
                'swag_klarna_allow_in_payment_container',
                'boolean',
                [
                    'label' => 'Nicht neben dem Klarna Checkout anzeigen',
                    'helpText' => 'Versteckt die Zahlungsart in dem "Andere Zahlungsarten-Container" im Klarna Checkout',
                    'displayInBackend' => true,
                    'pluginId' => $this->getId()
                ]
            );    
            $this->get('shopware_attribute.crud_service')->update(
                's_core_paymentmeans_attributes',
                'swag_klarna_klarna_media',
                'string',
                [
                    'label' => 'Bild Name für Klarna Checkout',
                    'helpText' => 'Zeigt die Zahlungsart zusätzlich mit einem Bild im iFrame an. Funktioniert nur, wenn SSL konfiguriert ist. Optimale Größe: 276x48px.'
                    . 'Das Bild muss im Order /media/image gespeichert werden',
                    'displayInBackend' => true,
                    'pluginId' => $this->getId()
                ]
            );             
            
        }        
    }

    protected function registerMyTemplateDir($isBackend = false)
    {
        if ($isBackend) {
            $this->get('template')->addTemplateDir(__DIR__ . '/Views/', 'klarna');
        } elseif ($this->isTemplateResponsive()) {
            $this->get('template')->addTemplateDir(__DIR__ . '/Views/responsive', 'klarna');
        } else {
            $this->get('template')->addTemplateDir(__DIR__ . '/Views/_emotion', 'klarna');
        }
    }

    /**
     * Checks if the the current Template is responsive
     *
     * @return bool
     */
    private function isTemplateResponsive()
    {
        $template = $this->Application()->Shop()->getTemplate()->getVersion();
        if ($template < 3) {
            return false;
        }

        return true;
    }

    /**
     * Returns the path to a frontend controller for an event.
     *
     * @return string
     */
    public function onGetControllerPathFrontend()
    {
        $this->registerMyTemplateDir();

        return __DIR__ . '/Controllers/Frontend/PaymentKlarna.php';
    }

    /**
     * Returns the path to a backend controller for an event.
     *
     * @return string
     */
    public function onGetControllerPathBackend()
    {
        $this->registerMyTemplateDir(true);
        $this->Application()->Snippets()->addConfigDir(
            __DIR__ . '/Snippets/'
        );

        return __DIR__ . '/Controllers/Backend/PaymentKlarna.php';
    }

    /**
     * @param Enlight_Event_EventArgs $args
     */
    public function onPostDispatch(Enlight_Event_EventArgs $args)
    {
        /** @var $action Enlight_Controller_Action */
        $action = $args->getSubject();
        $request = $action->Request();
        $response = $action->Response();
        $view = $action->View();
        
        if ($request->getControllerName() == 'account' && $request->getActionName() == 'login'
          && $request->get('klarnaPreFill') && $response->isRedirect()) {
            $session = $this->get('session');
            $session['klarnaPreFill'] = true;
        }

        if (!$request->isDispatched()
            || $response->isException()
            || $request->getModuleName() != 'frontend'
            || !$view->hasTemplate()
        ) {
            return;
        }

        $postedCountry = $request->get('sCountry');
        $controllerName = $request->getControllerName();
        $actionName = $request->getActionName();
        $fromScope = $request->get('fromScope');
        $isFromKCO = (bool)($fromScope == 'klarna_checkout');
        
        $session = $this->get('session');
        
        if ($controllerName == 'payment_klarna' && $postedCountry !== null) {
            $shopCountryId = $this->getCountryByShop(Shopware()->Shop());
            $validKlarnaCountry = $this->checkValidKlarnaCountry($postedCountry);
            if (!$validKlarnaCountry) {
                $action->redirect(array('controller' => 'payment_klarna', 'action' => 'otherPayment'));
                return;
            }
            if ($shopCountryId !== (int) $postedCountry){
                if ($this->isKlarnaUser()){
                    if ($postedCountry == '23'){
                        $session['sCountry'] = '23';
                        
                    } else { 
                    $action->redirect(array('controller' => 'payment_klarna', 'action' => 'otherPayment'));
                    }
                } else {
                    $action->redirect(array('controller' => 'checkout', 'action' => 'shippingPayment'));
                }
                return;
            }
            
        }
              
        $user = $view->getAssign('sUserData');

        if ($request->getControllerName() == 'checkout' || $request->getControllerName() == 'account') {
            $this->registerMyTemplateDir();
        }

        $config = $this->Config();

        if ($request->getControllerName() == 'checkout'
            && ($request->getActionName() == 'cart' || $request->getActionName() == 'ajaxCart')
        ) {
            $view->assign('KlarnaEnableButton', (bool)$config->get('showKlarnaButton'));
            $view->assign('KlarnaShowCheckoutButton', $this->getShowCheckoutButton($user));
            $view->assign('klarnaKcoPaymentActive', $this->isKlarnaKcoPaymentActive($user));
            $view->assign('KlarnaPaymentDescription', $this->getPayment()->getDescription());
            if (!$this->isTemplateResponsive()) {
                $view->extendsTemplate('frontend/payment_klarna_checkout/cart.tpl');
            }
        }

        if (!empty($config->partPaymentWidget)
            && $request->getControllerName() == 'detail' && $request->getActionName() == 'index'
        ) {
            $this->registerMyTemplateDir();
            //Do not shot the logo on the detail page if the kpm-plugin is active
            $view->KlarnaShowLogo = !$this->isKpmActive();
            $view->KlarnaLocale = $this->getLocale();
            $view->KlarnaMerchantId = $config->get('merchantId');
            if (!$this->isTemplateResponsive()) {
                $view->extendsTemplate('frontend/payment_klarna_part/detail.tpl');
            }
        }

        if (!empty($config->noAccountCheckout)
            && $request->getControllerName() == 'register'
            && $request->getActionName() == 'index'
        ) {
            if ($request->getParam('skipLogin') !== null || $this->isTemplateResponsive()) {
                $payments = $view->register->payment->payment_means;
                foreach ($payments as $payment) {
                    if ($payment['name'] == 'klarna_checkout' && !empty($session['sBasketQuantity'])) {
                        if (empty($session['sPaymentID']) || $payment['id'] == $session['sPaymentID']) {
                            $session['sPaymentID'] = $payment['id'];
                            $action->redirect(array('controller' => 'payment_klarna', 'action' => 'express'));
                            return;
                        }
                    }
                }
            }
        }

        if ($request->getControllerName() == 'register' && $request->getActionName() == 'index') {

This code seems to be duplicated across your project.

            $this->registerMyTemplateDir();
            $view->assign('KlarnaLocale', $this->getLocale());
            $view->assign('KlarnaMerchantId', $config->get('merchantId'));
            $view->assign('KlarnaHideCheckoutSteps', true);
            if (!$this->isTemplateResponsive()) {
                $view->extendsTemplate('frontend/payment_klarna_checkout/register.tpl');
            }
        }

        if ($request->getControllerName() == 'account' && $request->getActionName() == 'ajax_login') {

This code seems to be duplicated across your project.

            $this->registerMyTemplateDir();
            $view->assign('KlarnaLocale', $this->getLocale());
            $view->assign('KlarnaMerchantId', $config->get('merchantId'));
            if (!$this->isTemplateResponsive()) {
                $view->extendsTemplate('frontend/payment_klarna_checkout/ajax_login.tpl');
            }
        }

        if ($request->getControllerName() == 'checkout' && $request->getActionName() == 'shippingPayment') {
            $this->registerMyTemplateDir();
            $view->assign('KlarnaMerchantId', $config->get('merchantId'));
            $view->assign('KlarnaLocale', $this->getLocale(true));
        }
        
        if (isset($postedCountry) && isset($validKlarnaCountry) && $validKlarnaCountry) {
            $session['sChangedCountry'] = $postedCountry;
        }
        
        if ($controllerName == 'checkout' && $actionName == 'changeQuantity' && $this->isKlarnaKcoPaymentActive($user) && $isFromKCO) {
            $action->redirect(array('controller' => 'payment_klarna', 'action' => 'express'));
        }
        
    }
    
    /**
     * @param Enlight_Event_EventArgs $args
     * @throws Exception
     */
    public function onPostDispatchCheckout($args)
    {
        /** @var $action Enlight_Controller_Action */
        $action = $args->getSubject();
        $request = $action->Request();
        $response = $action->Response();
        $view = $action->View();

        if (!$request->isDispatched()

This code seems to be duplicated across your project.

            || $response->isException()
            || $response->isRedirect()
            || $request->getActionName() != 'confirm'
        ) {
            return;
        }

        $connector = $this->getConnector();
        $session = $this->Application()->Session();
        $user = $view->sUserData;
        $basket = $view->sBasket;
        $payment = $view->sPayment;
        /** @var \Shopware\Models\Shop\Shop $shop */
        $shop = $this->Application()->Shop();
        $config = $this->Config();

        $this->registerMyTemplateDir();
        if (!$this->isTemplateResponsive()) {
            $view->extendsTemplate('frontend/payment_klarna_checkout/confirm.tpl');
        }

        if (empty($payment) || $payment['name'] != 'klarna_checkout') {
            return;
        }

        // SwagDhl fix
        $allowPackstation = true;
        if (!empty($view->dhlDispatchIds)) {
            $allowPackstation = false;
            if (in_array($session->sDispatch, $view->dhlDispatchIds)) {
                $allowPackstation = true;
            }
            unset($view->dhlDispatchIds);
        }

        $this->getViewConfig($view, $config);
        
        $preFill = $request->get('klarnaPreFill') || !empty($session['klarnaPreFill']) || $config->get('preFillCheckout');

        try {
            if (isset($session['KlarnaOrder']) && $preFill) {
                $order = new Klarna_Checkout_Order($connector, $session['KlarnaOrder']);

$connector is of type object<Klarna_Checkout_Connector>, but the function expects a object<Klarna_Checkout_ConnectorInterface>.

                $order->fetch();

                if ($order['status'] == "checkout_incomplete") {
                    $update = array();
                    $update['cart']['items'] = $this->getCheckoutCart($basket);
                    $update['options'] = $this->getCheckoutOptions($allowPackstation, $view->sDispatch);
                    if ($request->get('klarnaPreFill') == "on"){
                        $update['customer'] = $this->getCheckoutCustomer($user);
                        if  ( !isset($user['billingaddress']['phone'])) {
                                $user['billingaddress']['phone'] = " ";
                        }  
                        if  ( !isset($user['shippinggaddress']['phone'])) {
                                $user['shippingaddress']['phone'] = " ";
                        }                        
                        if ($user['additional']['countryShipping']['id'] == $user['additional']['country']['id']) {

This code seems to be duplicated across your project.

                            $update['shipping_address'] = $this->getCheckoutAddress($user, 'billing');
                        } else {
                            $update['shipping_address'] = $this->getCheckoutAddress($user, 'shipping');
                        }                          
                    }
                    $order->update($update);
                } else {
                    unset($session['KlarnaOrder']);
                }
            } else {
                $create = array();
                $create['cart']['items'] = $this->getCheckoutCart($basket);
                $create['merchant'] = $this->getCheckoutMerchant();

                if (isset($session['sChangedCountry'])) {
                    $session['sCountry'] = $session['sChangedCountry'];
                } else {
                    $session['sCountry'] = $this->getCountryByShop($shop);
                }                
                
                $create['purchase_country'] = $this->getCountryIsoById($session['sCountry']);
                $create['purchase_currency'] = $shop->getCurrency()->toString();
                $create['locale'] = $this->getLocale(false, $create['purchase_country']);
                $create['options'] = $this->getCheckoutOptions($allowPackstation, $view->sDispatch);

                if ($config->get('KlarnaExternalPayments')) {
                    list($create['external_payment_methods'], $create['external_checkouts']) = $this->getExternalPaymentMethods($basket);
                }

                if ($config->get('disableAutofocus')) {
                    $create['gui']['options'] = array('disable_autofocus');
                }

                if (Shopware::VERSION === '___VERSION___' || version_compare(Shopware::VERSION, '5.2.0', '>=')) {
                   if  ( isset($user['additional']['user']['birthday']) && $user['additional']['user']['birthday'] !== "0000-00-00") {
                       $user['billingaddress']['birthday'] = $user['additional']['user']['birthday'];
                       $user['birthday'] = $user['additional']['user']['birthday'];
                   }
                }              
                if  ( !isset($user['billingaddress']['phone'])) {
                        $user['billingaddress']['phone'] = " ";
                }        

                if ($preFill) {
                    $session['klarnaPreFill'] = true;
                    if (empty($session['sCountry'])) {
                        $countryId = $this->getCountryByShop($shop);
                    }
                    else {
                        $countryId = $session['sCountry'];
                    }
                    if ($user['additional']['countryShipping']['id'] == $countryId
                        && $user['billingaddress']['zipcode'] != '00000'
                    ) {
                        $create['customer'] = $this->getCheckoutCustomer($user);
                        if ($user['additional']['countryShipping']['id'] == $user['additional']['country']['id']) {

This code seems to be duplicated across your project.

                            $create['shipping_address'] = $this->getCheckoutAddress($user, 'billing');
                        } else {
                            $create['shipping_address'] = $this->getCheckoutAddress($user, 'shipping');
                        }
                    }                    
                } else {
                    $session['klarnaPreFill'] = false;
                }
                $order = new Klarna_Checkout_Order($connector);

$connector is of type object<Klarna_Checkout_Connector>, but the function expects a object<Klarna_Checkout_ConnectorInterface>.

                if ($create['purchase_country'] == 'AT') {
                    $locale = 'de-at';
                } elseif ($create['purchase_country'] == 'DE')
                    {
                     $locale = 'de-de';
                } else {
                    $locale = $this->getLocale(false, $create['purchase_country']);
                }
                $create['locale'] = $locale;
                $order->create($create);
                $order->fetch();

                $session['KlarnaOrder'] = $order->getLocation();
            }
        } catch (Exception $e) {
            unset($session['KlarnaOrder']);
            /** @var Shopware\Components\Logger $logger */
            $logger = $this->get('corelogger');
            $logger->error($e->getMessage());
            Shopware()->Plugins()->Controller()->ViewRenderer()->setNoRender();
            echo "Entschuldigung, Ein Verbindungsfehler ist aufgetreten, bitte aktualisieren Sie die Seite";
        }

        if (isset($session['klarnaSavedRegister'])) {
            try {
                $update = $this->klarnaMapping($session['klarnaSavedRegister']);
                if ($update) {

The expression $update of type array is implicitly converted to a boolean; are you sure this is intended? If so, consider using ! empty($expr) instead to make it clear that you intend to check for an array without elements.

                    $order->update($update);

The variable $order does not seem to be defined for all execution paths leading up to this point.

                }
            } catch (Exception $e) {
                Shopware()->Plugins()->Controller()->ViewRenderer()->setNoRender();
                echo "Entschuldigung, Ein Verbindungsfehler ist aufgetreten, bitte aktualisieren Sie die Seite";
            }
            unset($session['klarnaSavedRegister']);
        }
        
        if (isset($session['sChangedCountry'])) {
            $sCountryId = $session['sChangedCountry'];
        } else {
            $sCountryId = $this->getCountryByShop($shop);
        }
              
        $view->assign('sCountryId', $sCountryId);
        $view->assign('KlarnaMerchantId', $config->get('merchantId'));
        $view->assign('KlarnaPreFillSelect', !$this->isKlarnaUser() && empty($session['klarnaPreFill']));
        $view->assign('KlarnaLocale', $this->getLocale(true));
        $view->assign('KlarnaOrder', $order->marshal());
    }

    /**
     * Populate register form with saved data on changing klarna and register tabs
     *
     * @param Enlight_Event_EventArgs $args
     */
    public function onPostDispatchFrontendRegister($args)
    {
        /** @var $action Enlight_Controller_Action */
        $action = $args->getSubject();
        $view = $action->View();
        $request = $action->Request();
        /** @var Enlight_Components_Session_Namespace $session */
        $session = $this->Application()->Session();
        $connector = $this->getConnector();
        $controllerName = $request->getControllerName();

$controllerName is not used, you could remove the assignment.

        
        if (isset($session['KlarnaOrder'])) {
            $order = new Klarna_Checkout_Order($connector, $session['KlarnaOrder']);

$connector is of type object<Klarna_Checkout_Connector>, but the function expects a object<Klarna_Checkout_ConnectorInterface>.

            
            try {
                $order->fetch();
            } catch (Exception $e) {
                Shopware()->Plugins()->Controller()->ViewRenderer()->setNoRender();
                echo "Entschuldigung, Ein Verbindungsfehler ist aufgetreten, bitte aktualisieren Sie die Seite";
            }

            $registerData = $this->getKlarnaCustomerData($order);
            foreach ($registerData['personal'] as $key => $val) {

This code seems to be duplicated across your project.

                if (empty($view->register->personal->form_data->$key)) {
                    $view->register->personal->form_data->$key = trim($val);
                }
            }

            foreach ($registerData['billing'] as $key => $val) {

This code seems to be duplicated across your project.

                if (empty($view->register->billing->form_data->$key)) {
                    $view->register->billing->form_data->$key = trim($val);
                }
            }

            foreach ($registerData['shipping'] as $key => $val) {

This code seems to be duplicated across your project.

                if (empty($view->register->shipping->form_data->$key)) {
                    $view->register->shipping->form_data->$key = trim($val);
                }
            }
        }

        $view->assign('klarnaRedirect', $request->has('klarnaRedirect') && $request->getParam('klarnaRedirect') == 1);
    }

    public function addJsFiles()
    {
        $jsPath = array(
            __DIR__ . '/Views/responsive/frontend/_public/src/js/jquery.klarna_checkout.js'
        );

        return new Doctrine\Common\Collections\ArrayCollection($jsPath);
    }

    /**
     * @param Enlight_Event_EventArgs $args
     */
    public function onPreDispatchCheckout($args)
    {
        /** @var $action Enlight_Controller_Action */
        $action = $args->getSubject();
        $request = $action->Request();
        $response = $action->Response();
        $view = $action->View();
        $session = $this->Application()->Session();

        if (!$request->isDispatched()
            || $response->isException()
            || $request->getModuleName() != 'frontend'
        ) {
            return;
        }

        if (!isset($session['sCountry'])) {
            $shop = $this->Application()->Shop();
            $session['sCountry'] = $this->getCountryByShop($shop);
        }

        if ($request->getActionName() != 'finish' || !isset($session['KlarnaOrder'])) {
            return;
        }

        $connector = $this->getConnector();
        $order = new Klarna_Checkout_Order($connector, $session['KlarnaOrder']);

$connector is of type object<Klarna_Checkout_Connector>, but the function expects a object<Klarna_Checkout_ConnectorInterface>.

        try {
            $order->fetch();
        } catch (Exception $e) {
            Shopware()->Plugins()->Controller()->ViewRenderer()->setNoRender();
            echo "Entschuldigung, Ein Verbindungsfehler ist aufgetreten, bitte aktualisieren Sie die Seite";
            $this->klarnaLog("Verbindungsfehler in onPreDispatchCheckout\nCode:".$e->getCode()."Nachricht:\n".$e->getMessage(),1);
        }
        
        if ($order['status'] != 'created' && $order['status'] != 'checkout_complete') {
            return;
        }

        $this->registerMyTemplateDir();
        if (!$this->isTemplateResponsive()) {
            $view->extendsTemplate('frontend/payment_klarna_checkout/finish.tpl');
        }
        $view->assign('KlarnaOrder', $order->marshal());
        
        try {
            $data['status'] = 'created';

$data was never initialized. Although not strictly required by PHP, it is generally a good practice to add $data = array(); before regardless.

            $this->klarnaLog("onPreDispatchCheckout: Trying to update order to klarna with state created with following data:",4, $data);
            $order->update($data);
        } catch (Klarna_Checkout_ConnectionErrorException $e) {
            $view->assign('KlarnaConnectionError', json_decode($e->getMessage(), true));
        }       
        unset($session['KlarnaOrder']);
        
        
        $postedCountry = $request->getParam('sCountry');
        if ($postedCountry && !isset($session['sCountry'])) {
            $session['sCountry'] = $postedCountry;   
        }
    }
    
    /**
     * @param Enlight_Event_EventArgs $args
     */
    public function onLoadOrderBackendModule(Enlight_Event_EventArgs $args)

This method seems to be duplicated in your project.

    {
        /** @var $subject Enlight_Controller_Action */
        $subject = $args->getSubject();
        $request = $subject->Request();
        $view = $subject->View();

        switch ($request->getActionName()) {
            case 'load':
                $this->registerMyTemplateDir(true);
                $view->extendsTemplate('backend/order/payment_klarna.js');
                break;
            default:
                break;
        }
    }

    /**
     * @param Enlight_Event_EventArgs $args
     */
    public function onLoadPaymentBackendModule(Enlight_Event_EventArgs $args)

This method seems to be duplicated in your project.

    {
        /** @var $subject Enlight_Controller_Action */
        $subject = $args->getSubject();
        $request = $subject->Request();
        $view = $subject->View();

        switch ($request->getActionName()) {
            case 'load':
                $this->registerMyTemplateDir(true);
                $view->extendsTemplate('backend/payment/payment_klarna.js');
                break;
            default:
                break;
        }
    }

    public function updateOrderVariables()
    {
        $session = Shopware()->Session();
        $admin = Shopware()->Modules()->Admin();
        /** @var ArrayObject $orderVariables */
        $orderVariables = $session['sOrderVariables'];
        $userData = $admin->sGetUserData();
        $userData['payment'] = $orderVariables['sUserData']['payment'];
        $userData['additional'] = array_merge(
            $orderVariables['sUserData']['additional'],
            $userData['additional']
        );
        
        if (isset($session['sChangedCountry'])){
            
            /** @var \Shopware\Components\Model\ModelManager $em */
            $em = $this->get('models');

            /** @var \Shopware\Models\Customer\Customer $customer */
            $country = $em->getRepository('Shopware\Models\Country\Country')->findOneBy(array('id' => $session['sChangedCountry']));            
            $userData['shippingaddress']['country'] =$country;     
            $userData['billingaddress']['country'] =$country;   
            $userData['shippingaddress']['countryID'] = $session['sChangedCountry'];
            $userData['billingaddress']['countryID'] = $session['sChangedCountry'];
         }
        
        $orderVariables['sUserData'] = $userData;
    }

    /**
     * @param $shop Shopware\Models\Shop\Shop
     * @return int|null
     */
    public function getCountryByShop($shop)
    {
        $locale = $shop->getLocale()->getLocale();
        $this->klarnaLog("Entering Bootstrap::getCountryByShop", 3);
        $locale = explode('_', $locale);
        $locale = isset($locale[1]) ? $locale[1] : $locale[0];
        $this->klarnaLog("Bootstrap::getCountryByShop locale to request for:".$locale,3);
        $sql = 'SELECT id FROM s_core_countries WHERE countryiso=?';
        $countryId = Shopware()->Db()->fetchOne($sql, array($locale));
        $countryId = ($countryId) ? (int)$countryId : null;
                
        return $countryId;
    }

    /**
     * Get user country by country id
     *
     * @param $id
     * @return string
     */
    public function getCountryIsoById($id)
    {
        $sql = 'SELECT countryiso FROM s_core_countries WHERE id = ?';
        $countryIso = Shopware()->Db()->fetchOne($sql, array($id));

        return $countryIso;
    }

    public function getLocale($underscore = false, $countryIso = null)
    {
        /** @var \Shopware\Models\Shop\Shop $shop */
        $shop = $this->Application()->Shop();
        $locale = $shop->getLocale()->getLocale();
        $locale = strtolower($locale);
        if (!$underscore) {
            $locale = str_replace('_', '-', $locale);
        }
        $locale = $locale == 'nn-no' ? 'nb-no' : $locale;

        if ($locale == 'de-de') {
            if($countryIso == 'CH') {
                $locale = 'de-ch';
            } elseif ($countryIso == 'AT') {
                $locale = 'de-at';
            }
        }

        return $locale;
    }

    protected function getCheckoutOptions($allowPackstation = true, $dispatch = array())
    {
        $config = $this->Config();
        $options = $this->getColorConfigOptions($config);

        $options['allow_separate_shipping_address'] = (bool)$config->get('allowSeparateShippingAddress');
        $options['packstation_enabled'] = (bool)$config->get('supportPackstation') && $allowPackstation;
        $options['phone_mandatory'] = (bool)$config->get('mandatoryPhone');
        $options['date_of_birth_mandatory'] = (bool)$config->get('mandatoryBirthday');

        if (!empty($dispatch)) {
            $options['shipping_details'] = $dispatch['description'];
        }

        return $options;
    }

    protected function getCheckoutCart($basket)
    {
        $cart = array();
        foreach ($basket['content'] as $basketItem) {
            $unitPrice = round(str_replace(',', '.', $basketItem['price']) * 100);
            $cart[] = array(
                'type' => $unitPrice >= 0 ? 'physical' : 'discount',
                'reference' => $basketItem['ordernumber'],
                'name' => $basketItem['articlename'],
                'quantity' => (int)$basketItem['quantity'],
                'unit_price' => (int)$unitPrice,
                'tax_rate' => (int)round($basketItem['tax_rate'] * 100)
            );
        }
        if (!empty($basket['sShippingcosts'])) {
            $shippingCostsWithTax = $basket['sShippingcostsWithTax'];
            $shippingAmount = !empty($shippingCostsWithTax) ? $shippingCostsWithTax : $basket['sShippingcosts'];
            $cart[] = array(
                'type' => 'shipping_fee',
                'reference' => 'SHIPPING',
                'name' => 'Shipping Fee',
                'quantity' => 1,
                'unit_price' => (int)round($shippingAmount * 100),
                'tax_rate' => (int)round($basket['sShippingcostsTax'] * 100),
            );
        }

        return $cart;
    }

    protected function getCheckoutMerchant()
    {
        /** @var \Shopware\Components\Routing\RouterInterface $router */
        $router = $this->Application()->Front()->Router();
        $merchant = array();
        $merchant['id'] = $this->Config()->get('merchantId');
        $merchant['terms_uri'] = $router->assemble(
            array(
                'controller' => 'custom',
                'sCustom' => $this->Config()->get('termSiteId', 4),
                'forceSecure' => true
            )
        );
        $merchant['checkout_uri'] = $router->assemble(
            array(
                'action' => 'confirm'
            )
        );
        $merchant['confirmation_uri'] = $router->assemble(
            array(
                'controller' => 'payment_klarna',
                'action' => 'return',
                'forceSecure' => true
            )
        ) . "?transactionId={checkout.order.uri}";
        $merchant['push_uri'] = $router->assemble(
            array(
                'controller' => 'payment_klarna',
                'action' => 'push',
                'forceSecure' => true,
                'appendSession' => true
            )
        ) . "&transactionId={checkout.order.uri}";
        $merchant['back_to_store_uri'] = $router->assemble(
            array(
                'controller' => 'index',
                'action' => 'index'
            )
        );

        return $merchant;
    }

    public function getCheckoutAddress($user, $type = 'billing')
    {
        if (empty($user[$type . 'address']['zipcode']) || $user[$type . 'address']['zipcode'] == '00000') {
            return array();
        }

        $address = array(
            'given_name' => $user[$type . 'address']['firstname'],
            'family_name' => $user[$type . 'address']['lastname'],
            'postal_code' => $user[$type . 'address']['zipcode'],
            'city' => $user[$type . 'address']['city'],
            'country' => $user['additional'][$type == 'billing' ? 'country' : 'countryShipping']['countryiso'],
            'email' => $user['additional']['user']['email'],
            'phone' => $user['billingaddress']['phone'],
        );
        $address['country'] = strtolower($address['country']);
        if ($address['country'] == 'de' || $address['country'] == 'nl') {
            $address['title'] = $user[$type . 'address']['salutation'] == 'ms' ? 'Frau' : 'Herr';
            if ($this->assertMinimumVersion('5.0.0')) {
                /** @var StreetSplitService $streetSplitService */
                $streetSplitService = Shopware()->StreetSplitService();
                $streetAndNumber = $streetSplitService->split($user[$type . 'address']['street']);

                $address['street_name'] = $streetAndNumber['streetName'];
                $address['street_number'] = $streetAndNumber['streetNumber'];
            } else {

This code seems to be duplicated across your project.

                $address['street_name'] = $user[$type . 'address']['street'];
                $address['street_number'] = $user[$type . 'address']['streetnumber'];
            }
        } else {

This code seems to be duplicated across your project.

            $address['street_address'] = trim(
                $user[$type . 'address']['street'] . ' ' . $user[$type . 'address']['streetnumber']
            );
        }

        return $address;
    }

    public function getCheckoutCustomer($user)
    {
        $customer = array(
            'type' => 'person'
        );
        if (!empty($user['billingaddress']['birthday']) && $user['billingaddress']['birthday'] != '0000-00-00') {
            $customer['date_of_birth'] = $user['billingaddress']['birthday'];
        }
        // SW 5.2 and newer
        if (!empty($user['birthday']) && $user['birthday'] != '0000-00-00') {
            $customer['date_of_birth'] = $user['birthday'];
        }

        return $customer;
    }

    /**
     *
     * @return array
     */
    public function getLabel()
    {
        return 'Klarna Checkout';
    }

    /**
     * @return string
     * @throws Exception
     */
    public function getVersion()
    {
        $info = json_decode(file_get_contents(__DIR__ . DIRECTORY_SEPARATOR . 'plugin.json'), true);

        if ($info) {
            return $info['currentVersion'];
        } else {
            throw new Exception('The plugin has an invalid version file.');
        }
    }

    /**
     * @return array
     */
    public function getInfo()
    {
        return array(
            'version' => $this->getVersion(),
            'label' => $this->getLabel(),
            'description' => file_get_contents(__DIR__ . '/info.txt')
        );
    }

    /**
     * Creates and returns the klarna client for an event.
     *
     * @return \Klarna_Checkout_Connector
     */
    public function onInitResourceKlarnaCheckoutConnector()
    {
        require_once __DIR__ . '/Components/KlarnaCheckout/Checkout.php';
        if ($this->Config()->get('testDrive')) {
            Klarna_Checkout_Order::$baseUri = 'https://checkout.testdrive.klarna.com/checkout/orders';
        } else {
            Klarna_Checkout_Order::$baseUri = 'https://checkout.klarna.com/checkout/orders';
        }
        Klarna_Checkout_Order::$contentType = "application/vnd.klarna.checkout.aggregated-order-v2+json";
        $sharedSecret = $this->Config()->get('sharedSecret');
        $connector = Klarna_Checkout_Connector::create($sharedSecret);
        $this->klarnaLog("Created Klarna Connector:", 4, $connector);

        return $connector;
    }

    /**
     * @return Klarna
     */
    public function onInitResourceKlarnaService()
    {
        require_once __DIR__ . '/Components/Klarna/Klarna.php';
        require_once __DIR__ . '/Components/Klarna/transport/xmlrpc-3.0.0.beta/lib/xmlrpc.inc';

        $k = new Klarna();
        return $k;
    }

    /**
     * Provide the file collection for less
     *
     * @return \Doctrine\Common\Collections\ArrayCollection
     */
    public function addLessFiles()
    {
        $less = new \Shopware\Components\Theme\LessDefinition(
            //configuration
            array(),
            //less files to compile
            array(
                __DIR__ . '/Views/responsive/frontend/_public/src/less/all.less'
            ),
            //import directory
            __DIR__
        );

        return new Doctrine\Common\Collections\ArrayCollection(array($less));
    }

    /**
     * @param string $requiredVersion
     * @return bool|mixed
     */
    protected function assertMinimumVersion($requiredVersion)
    {
        if (Shopware::VERSION === '___VERSION___') {
            return true;
        }

        return version_compare(Shopware::VERSION, $requiredVersion, '>=');
    }

    /**
     * @param Enlight_Event_EventArgs $args
     * @return bool
     */
    public function onCheckoutSaveShippingKlarna(Enlight_Event_EventArgs $args)
    {
        /** @var Shopware_Controllers_Frontend_Checkout $controller */
        $controller = $args->getSubject();
        if (!$controller->Request()->isPost()) {
            $controller->forward('shippingPayment');
            return true;
        }

        // Save payment and shipping method data.
        $controller->setDispatch($controller->Request()->getPost('sDispatch'));
        $controller->redirect(array('controller' => 'payment_klarna', 'action' => 'express'));
        return true;
    }

    /**
     * This event is executed when the expressAction of the checkout-controller should be executed.
     * It is needed to redirect the user back to the klarna checkout after deleting an article in the klarna checkout.
     *
     * @param Enlight_Event_EventArgs $args
     * @return bool
     */
    public function onCheckoutExpress(Enlight_Event_EventArgs $args)
    {
        /** @var $action Enlight_Controller_Action */
        $action = $args->getSubject();

        $action->redirect(array('controller' => 'payment_klarna', 'action' => 'express'));
        return true;
    }

    /**
     * Mapping to populate klarna checkout with saved information from register page
     *
     * @param $form
     * @return mixed
     */
    private function klarnaMapping($form)
    {
        $fields = array(
            'email' => 'email',
            'zipcode' => 'postal_code',
            'firstname' => 'given_name',
            'lastname' => 'family_name',
        );

        $create = array();
        foreach ($fields as $formField => $klarnaField) {
            if (!empty($form['register']['personal'][$formField])) {

This code seems to be duplicated across your project.

                $create['shipping_address'][$klarnaField] = $form['register']['personal'][$formField];
            }
            if (!empty($form['register']['billing'][$formField])) {

This code seems to be duplicated across your project.

                $create['shipping_address'][$klarnaField] = $form['register']['billing'][$formField];
            }
        }

        $countryIso = $this->getCountryIsoById($form['register']['billing']['country']);

        $salutation = $form['register']['personal']['salutation'];
        if (!empty($salutation) && ($countryIso == 'DE' || $countryIso == 'NL')) {
            $create['shipping_address']['title'] = ($salutation == 'ms' ? 'Frau' : 'Herr');//German names
        }

        $billingStreet = $form['register']['billing']['street'];
        $billingStreetNumber = $form['register']['billing']['streetnumber'];
        if (!empty($billingStreet)) {
            if ($countryIso == 'DE' || $countryIso == 'NL') {
                if ($this->assertMinimumVersion('5.0.0')) {
                    preg_match('(^(?P<street>.+)\\s+(?P<number>\\d+\\S*)$)', $billingStreet, $matches);

                    $create['shipping_address']['street_name'] = $matches['street'];
                    $create['shipping_address']['street_number'] = $matches['number'];
                } else {
                    $create['shipping_address']['street_name'] = $form['register']['billing']['street'];
                    $create['shipping_address']['street_number'] = $billingStreetNumber;
                }
            } else {
                $create['shipping_address']['street_address'] = $billingStreet . ' ' . $billingStreetNumber;
            }
        }

        return $create;
    }

    /**
     * Helper method to read the color-config options properly.
     *
     * @param $config Enlight_Config
     * @return mixed
     */
    private function getColorConfigOptions($config)
    {
        $options = array();
        $checkoutButtonColor = $config->get('checkoutButtonColor');
        $checkoutButtonTextColor = $config->get('checkoutButtonTextColor');
        $checkoutCheckboxColor = $config->get('checkoutCheckboxColor');
        $checkoutCheckboxCheckMarkColor = $config->get('checkoutCheckboxCheckmarkColor');
        $checkoutHeaderColor = $config->get('checkoutHeaderColor');
        $checkoutLinkColor = $config->get('checkoutLinkColor');

        if (!empty($checkoutButtonColor) && $checkoutButtonColor !== "#") {
            $options['color_button'] = $checkoutButtonColor;
        }
        if (!empty($checkoutButtonTextColor) && $checkoutButtonTextColor !== "#") {
            $options['color_button_text'] = $checkoutButtonTextColor;
        }
        if (!empty($checkoutCheckboxColor) && $checkoutCheckboxColor !== "#") {
            $options['color_checkbox'] = $checkoutCheckboxColor;
        }
        if (!empty($checkoutCheckboxCheckMarkColor) && $checkoutCheckboxCheckMarkColor !== "#") {
            $options['color_checkbox_checkmark'] = $checkoutCheckboxCheckMarkColor;
        }
        if (!empty($checkoutHeaderColor) && $checkoutHeaderColor !== "#") {
            $options['color_header'] = $checkoutHeaderColor;
        }
        if (!empty($checkoutLinkColor) && $checkoutLinkColor !== "#") {
            $options['color_link'] = $checkoutLinkColor;
        }

        return $options;
    }

    /**
     * @param $view Enlight_View_Default
     * @param $config Enlight_Config
     */
    private function getViewConfig($view, $config)
    {
        /** @var sAdmin $adminModule */
        $adminModule = $this->get('modules')->Admin();
        $session = $this->get('session');
        $sCountry = $session['sCountry'];

$sCountry is not used, you could remove the assignment.

        $view->assign('sCountryId', $session['sCountry']);
        $view->assign('sPayments', $this->filterPayments($adminModule->sGetPaymentMeans()));
        $view->assign('sCountryList', $adminModule->sGetCountryList());
        $view->assign('KlarnaHideCheckoutSteps', true);
        $view->assign('KlarnaShowB2bSelect', (bool)$config->get('showB2bSelect'));
        $view->assign('KlarnaShowBasket', (bool)$config->get('showMiniBasket'));
        $view->assign('KlarnaShowDispatch', (bool)$config->get('showDispatch'));
        $view->assign(
            'KlarnaCDNLink',
            $this->buildCDNLink()
        );
        $view->assign(
            'KlarnaLoggedInUser',
            $view->sUserData['billingaddress']['lastname'] == 'Klarna Checkout'
        );
        $view->assign(
            'KlarnaShowLogin',
            $this->getShowLoginConfig($config, $view->sUserData['billingaddress']['lastname'])
        );
        $view->assign(
            'KlarnaDisplayType',
            $this->getKlarnaDisplayType($config)
        );
        $view->assign(
            'KlarnaPositionOrder',
            $this->getPositionOrder($config)
        );
    }

    /**
     * Helper method to get the config whether or not to show the login-panel in the klarna-checkout.
     *
     * @param $config Enlight_Config
     * @param $lastName string
     * @return bool
     */
    private function getShowLoginConfig($config, $lastName)
    {
        return (bool)$config->get('showLoginPanel') && $lastName == 'Klarna Checkout';
    }

    /**
     * Helper method to read all countries.
     * Reads all countries connected to a locale by the iso.
     * Additionally reads out if that country is configured for the klarna-payment method.
     * @example array(
         array(
             'id' => 1,
             'localeId' => 17,
             'countryname' => 'Germany',
             'configured' => 0
         ),
         array(
             'id' => 4,
             'localeId' => 22,
             'countryname' => 'Austria',
             'configured' => 1
         )
     );
     * @return array
     */
    private function getAllCountries()

This method is not used, and could be removed.

    {
        if (empty($this->countries)) {
            $sql = "SELECT cl.id, cc.id as countryId, cl.territory, cc.countryname, IF(pmc.countryID IS NULL, IF(pmc2.countryID IS NULL, 1, 0), 1) as configured
                FROM s_core_countries cc
                INNER JOIN s_core_locales cl
                    ON cl.locale LIKE CONCAT('%_', cc.countryiso)
                LEFT JOIN s_core_paymentmeans_countries pmc
                    ON cc.id = pmc.countryID
                    AND pmc.paymentID = (SELECT id FROM s_core_paymentmeans WHERE action='payment_klarna')
                LEFT JOIN s_core_paymentmeans_countries pmc2
                    ON pmc2.paymentID = (SELECT id FROM s_core_paymentmeans WHERE action='payment_klarna')
                WHERE cc.active = 1
                GROUP BY cc.countryname
                ORDER BY cc.position, cc.countryname";

            $result = Shopware()->Db()->fetchAssoc($sql, array());

            // Load translations if available
            $this->countries = array_map(function ($country) {
                $country['id'] = $country['countryId'];
                return Shopware()->Modules()->Admin()->sGetCountryTranslation($country);
            }, $result);
        }

        return $this->countries;
    }

    /**
     * Helper method to find the correct display-type for the frontend.
     * Will return the value configured in the plugin-config, if there is at least one more payment-mean besides klarna.
     * @param $config Enlight_Config
     * @return int
     */
    private function getKlarnaDisplayType($config)
    {
        if (!$this->getOtherPayments()) {
            return 2;
        }
        return $config->get('displayType');
    }

    /**
     * Helper method to find other payment-means besides klarna.
     * @return bool
     */
    private function getOtherPayments()
    {
        $payments = $this->Application()->Modules()->Admin()->sGetPaymentMeans();

        foreach ($payments as $payment) {
            if ($payment['action'] != 'payment_klarna') {
                return true;
            }
        }

        return false;
    }

    /**
     * Helper method to figure out whether or not to show the extra klarna checkout button.
     * @return bool
     */
    private function getShowCheckoutButton($user)
    {
        if (!empty($user['additional']['payment']['id']) && $user['additional']['payment']['id'] != $this->getPayment()->getId()) {
            return true;
        }

        return false;
    }

    /**
     * Helper method to get the correct order for the elements
     *
     * @param $config Enlight_Config
     * @return array Array with the order of the elements
     */
    private function getPositionOrder($config)
    {
        $loginPanel = 'login_panel';
        $miniBasket = 'mini_basket';
        $dispatch = 'dispatch';
        $payments = 'payments';
        switch ($config->get('positionOrder')) {
            case 1:
                return array($loginPanel, $miniBasket, $dispatch, $payments);
            case 2:
                return array($loginPanel, $miniBasket, $payments, $dispatch);
            case 3:
                return array($dispatch, $payments, $loginPanel, $miniBasket);
            case 4:
            default:
                return array($payments, $dispatch, $loginPanel, $miniBasket);
        }
    }

    /**
     * Helper method to build the proper cdn-link for the image in the tabs-layout.
     * @return string
     */
    private function buildCDNLink()
    {
        $validLocales = array(
            'de_de',
            'de_at',
            'en_us',
            'en_gb',
            'fi_fi',
            'sv_se',
            'nb_no',
        );
        $locale = str_replace('-', '_', $this->getLocale());

        if (!in_array($locale, $validLocales)) {
            $locale = 'en_gb';
        }
        return "https://cdn.klarna.com/1.0/shared/image/generic/badge/{$locale}/checkout/long-no-klarna-logo.png";
    }

    /**
     * Helper method to read the customer-data from the klarna order-object.
     * @param Klarna_Checkout_Order $order
     * @return array
     */
    private function getKlarnaCustomerData($order)
    {
        $billingAddress = $order['billing_address'];

        return array(
            'personal' => array(
                'customer_type' => 'private',
                'salutation' => $billingAddress['title'],
                'firstname' => $billingAddress['given_name'],
                'lastname' => $billingAddress['family_name'],
                'email' => $billingAddress['email'],
                'birthday' => $order['customer']['date_of_birth'],
                'phone' => $billingAddress['phone']
            ),
            'billing' => array(
                'street' => $billingAddress['street_name'] . ' ' . $billingAddress['street_number'],
                'zipcode' => $billingAddress['postal_code'],
                'city' => $billingAddress['city']
            )
        );
    }

    /**
     * Returns an array with all translations
     * @return array
     */
    private function getTranslationArray()
    {
        return array(
            'en_GB' => array(
                'testDrive' => array(
                    'label' => 'Activate test-modus'
                ),
                'merchantId' => array(
                    'label' => 'API merchant ID (EID)'
                ),
                'sharedSecret' => array(
                    'label' => 'API-Secret (sharedsecret)'
                ),
                'termSiteId' => array(
                    'label' => 'Shopsite including the terms and conditions'
                ),
                'allowSeparateShippingAddress' => array(
                    'label' => 'Enable differing shipping address'
                ),
                'supportPackstation' => array(
                    'label' => 'Support DHL-packstation',
                    'helpText' => 'The differing shipping address must be enabled'
                ),
                'postnumberField' => array(
                    'label' => 'Alternative field for the DHL-postnumber'
                ),
                'mandatoryPhone' => array(
                    'label' => 'Phone mandatory field'
                ),
                'mandatoryBirthday' => array(
                    'label' => 'Birthday mandatory field'
                ),
                'disableAutofocus' => array(
                    'label' => 'Disable auto-focus'
                ),
                'showKlarnaButton' => array(
                    'label' => 'Show klarna-checkout button'
                ),
                'checkoutButtonColor' => array(
                    'label' => 'Checkout Button Color'
                ),
                'checkoutButtonTextColor' => array(
                    'label' => 'Checkout Buttontext Color'
                ),
                'checkoutCheckboxColor' => array(
                    'label' => 'Checkout Checkbox Color'
                ),
                'checkoutCheckboxCheckmarkColor' => array(
                    'label' => 'Checkout Checkbox Tick Color'
                ),
                'checkoutHeaderColor' => array(
                    'label' => 'Checkout Header Color'
                ),
                'checkoutLinkColor' => array(
                    'label' => 'Checkout Link Color'
                ),
                'KlarnaExternalPayments' => array(
                    'label' => 'Display external payment-methods in klarna checkout',
                    'helpText' => 'Your klarna-account has to be unlocked for this feature',
                ),
                'displayType' => array(
                    'label' => 'Klarna Checkout display-type',
                    'store' => array(
                        array(1, 'Display tabs'),
                        array(2, 'Display only klarna checkout'),
                        array(3, 'One-page display')
                    ),
                ),
                'showB2bSelect' => array(
                    'label' => 'Show B2B-select',
                    'helpText' => 'Displays a new select-box containing "Private customer" and "Company" in the klarna checkout'
                ),
                'showLoginPanel' => array(
                    'label' => 'Show login-panel',
                    'helpText' => 'Displays a login-panel in the klarna-checkout',
                ),
                'showMiniBasket' => array(
                    'label' => 'Show mini-basket',
                    'helpText' => 'Displays a small overview of the basket in the klarna-checkout',
                ),
                'showDispatch' => array(
                    'label' => 'Show shipping-country and -method',
                    'helpText' => 'Shows a shipping-country and shipping-method select in the klarna-checkout'
                ),
                'partPaymentWidget' => array(
                    'label' => 'Show partial-payment-widget on detail-page'
                ),
                'convertShippingFee' => array(
                    'label' => 'Convert shipping-costs to an order-position'
                ),
                'statusId' => array(
                    'label' => 'Payment status after order'
                ),
                'activateStatusId' => array(
                    'label' => 'Payment status after activation'
                ),
                'cancelStatusId' => array(
                    'label' => 'Payment status after cancellation'
                )
            )
        );
    }

    /**
     * Helper method to update the klarna-payment when updating from any version to >= 2.0 of klarna.
     * It adds "austria" to the valid countries.
     */
    private function updatePayment()
    {
        /** @var \Shopware\Components\Model\ModelManager $manager */
        $manager = $this->get('models');
        $payment = $manager->getRepository('Shopware\Models\Payment\Payment')->findOneBy(array(
            'name' => 'klarna_checkout'
        ));

        if (empty($payment)) {
            return;
        }

        $updateNeeded = true;
        $countries = $payment->getCountries();
        /** @var Shopware\Models\Country\Country $country */
        foreach ($countries as $country) {
            if ($country->getIso() == 'AT') {
                $updateNeeded = false;
            }
        }

        if ($updateNeeded) {
            $countries->add($manager->getRepository('Shopware\Models\Country\Country')->findOneBy(array('iso' => 'AT')));
            $payment->setCountries($countries);

            $manager->persist($payment);
            $manager->flush();
        }
    }

    /**
     * @return bool
     */
    public function isKlarnaUser()
    {
        $session = $this->get('session');
        if (!$session->offsetGet('sUserId')) {
            return false;
        }
        $email = $session->offsetGet('sUserMail');
        $sessionId = $session->offsetGet('sessionId');
        if (!preg_match('#.{' . strlen($sessionId) . '}@klarna.com#', $email)) {
            return false;
        }

        return true;
    }

    /**
     * Helper method to find and remove all klarna-users older than 24 hours
     */
    public function removeKlarnaUsers()
    {
        $connection = Shopware()->Models()->getConnection();

        $builder = $connection->createQueryBuilder();
        $builder->select('user.id')
            ->from('s_user', 'user')
            ->innerJoin(
                'user',
                's_user_billingaddress',
                'billing',
                'billing.userID = user.id'
            )
            ->where('billing.lastname = :lastName')
            ->andWhere('DATE_SUB(NOW(), INTERVAL 1 DAY) >= user.lastlogin')
            ->setParameter(':lastName', 'Klarna Checkout');

        $ids = array_column($builder->execute()->fetchAll(), 'id');

        if (empty($ids)) {
            return;
        }

        $builder = $connection->createQueryBuilder();
        $builder->delete('s_user')->where('id IN (:ids)')->setParameter(
            'ids',
            $ids,
            Connection::PARAM_INT_ARRAY
        )->execute();

        $builder->delete('s_user_billingaddress')->where('userID IN (:ids)')->setParameter(
            'ids',
            $ids,
            Connection::PARAM_INT_ARRAY
        )->execute();

        $builder->delete('s_user_shippingaddress')->where('userID IN (:ids)')->setParameter(
            'ids',
            $ids,
            Connection::PARAM_INT_ARRAY
        )->execute();
    }
    
    /**
     * Method checks if selected country is valid for use with klarna
     * 
     * @param string $countryId
     * @return boolean
     */
    protected function checkValidKlarnaCountry($countryId) {
        $countries = $this->getPayment()->getCountries();
        foreach ($countries as $country) {
            $allowedCountries[] = $country->getId();

$allowedCountries was never initialized. Although not strictly required by PHP, it is generally a good practice to add $allowedCountries = array(); before regardless.

        }

        return in_array($countryId, $allowedCountries);

The variable $allowedCountries does not seem to be defined for all execution paths leading up to this point.

    }
    

    /**
     * Helper method to read all payments, that should be displayed in the klarna checkout.
     * @param $basket
     * @return array
     */
    private function getExternalPaymentMethods($basket)
    {
        $payments = Shopware()->Models()->getRepository('Shopware\Models\Attribute\Payment')->findBy(array(
            'swagKlarnaShowInKlarnaIframe' => 1,
            'swagKlarnaAllowInPaymentContainer' => 0
        ));

        $externalPayments = array();
        $externalCheckouts = array();
        /** @var Shopware\Models\Attribute\Payment $payment */
        foreach ($payments as $payment) {
            $paymentObj = $payment->getPayment();
            if (is_null($paymentObj)){
                $paymentName = false;
            } else {
                $paymentName = $paymentObj->getName();
            }
            
            if(!$paymentName){
                continue;
            }            
            
            if ($paymentName && $paymentName == 'klarna_checkout') {
                continue;
            }
            $paymentArray = array(
                'name' => $payment->getPayment()->getDescription(),
                'redirect_uri' => $this->getRedirectUri() . '/paymentId/' . $payment->getPaymentId()
            );

            if ($fee = $this->getFee($payment->getPayment(), $basket)) {
                $paymentArray['fee'] = $fee;
            }

            if ($description = $payment->getPayment()->getAdditionalDescription()) {
                //Shorten the description to max. 500 characters
                $description = strip_tags($description);
                $description = preg_replace('#<!--.*-->#ms', '', $description);
                $paymentArray['description'] = substr($description, 0, 497) . '...';
            }

            //Only add to external checkouts if an image is set and if the shop supports SSL
            if (Shopware()->Shop()->getSecure() && $image = $this->getImageForKlarna($payment)) {
                $paymentArray['image_uri'] = $image;
                $externalCheckouts[] = $paymentArray;
            }

            $externalPayments[] = $paymentArray;
        }

        return array($externalPayments, $externalCheckouts);
    }

    /**
     * @param Shopware\Models\Payment\Payment $payment
     * @param $basket
     * @return bool
     */
    private function getFee($payment, $basket)
    {
        $fee = 0;
        $amount = str_replace(',', '.', $basket['Amount']);

        if ($surcharge = $payment->getSurcharge()) {
            $fee += $surcharge;
            $amount += $surcharge;
        }

        if ($percent = $payment->getDebitPercent()) {
            $fee += round($amount / 100 * $percent, 3);
        }

        return round($fee * 100);
    }

    /**
     * Helper method to get the redirect-uri
     * @return string
     */
    private function getRedirectUri()
    {
        return Shopware()->Front()->Router()->assemble(array(
            'controller' => 'PaymentKlarna',
            'action' => 'setPayment'
        ));
    }

    /**
     * Helper method to read the image for the klarna-checkout if set
     * @param Shopware\Models\Attribute\Payment $payment
     * @return null|string
     */
    private function getImageForKlarna($payment)
    {
        $media = $payment->getSwagKlarnaKlarnaMedia();
        if (!$payment->getSwagKlarnaShowInKlarnaIframe() || !empty($media)) {
            if ($this->assertMinimumVersion('5.1') && version_compare(Shopware::VERSION, '5.2.0', '<=') ) {
                $media = $this->get('shopware_media.media_service')->getUrl($media);
            } else {
                /** @var Enlight_Controller_Front $front */
                $front = $this->get('front');
                $request = $front->Request();
                if ($request && $request->getHttpHost()) {
                    $url = ($request->isSecure() ? 'https' : 'http') . '://' . $request->getHttpHost() . $request->getBasePath() . "/";
                } else {
                    $url = $front->Router()->assemble(array('controller' => 'index', 'module' => 'frontend'));
                }
		if (version_compare(Shopware::VERSION, '5.2.0', '>=')) {
			$media = $url . 'media/image/' . $media;
		} else {
	                $media = $url . $media;
		}
            }

            return $media;
        }
        return null;
    }

    /**
     * Helper method to filter the available payment-means.
     * @param $sGetPaymentMeans
     * @return array
     */
    private function filterPayments($sGetPaymentMeans)
    {
        $paymentArray = array();
        foreach ($sGetPaymentMeans as $paymentMean) {
            if (!$this->isPaymentAllowed($paymentMean)) {
                continue;
            }

            $paymentArray[] = $paymentMean;
        }
        return $paymentArray;
    }

    /**
     * Helper method to check if a payment is allowed to be
     * @param $payment
     * @return bool
     */
    private function isPaymentAllowed($payment)
    {
        if ($payment['name'] == 'klarna_checkout') {
            return false;
        }
        $connection = Shopware()->Models()->getConnection();

        $builder = $connection->createQueryBuilder();
        $builder->select('swag_klarna_allow_in_payment_container', 'swag_klarna_show_in_klarna_iframe')
            ->from('s_core_paymentmeans_attributes')
            ->where('paymentmeanID = :id')
            ->setParameter(':id', $payment['id']);

        $result = reset($builder->execute()->fetchAll());

$builder->execute()->fetchAll() cannot be passed to reset() as the parameter $array expects a reference.

        return !$result['swag_klarna_allow_in_payment_container'] && !$result['swag_klarna_show_in_klarna_iframe'];
    }

    /**
     * Builds the new klarna version-string.
     *
     * @param Klarna $klarna
     * @return string
     */
    private function buildKlarnaVersion(Klarna $klarna)
    {
        $versionInfo = array(
            'Shopware',
            $this->Application()->Config()->version,
            'KCO-Plugin',
            $this->getVersion(),
            $klarna->getVersion()
        );

        return implode(':', $versionInfo);
    }

    /**
     * Helper method to find out if the kpm plugin is active
     */
    public function isKpmActive()
    {
        /** @var Doctrine\DBAL\Query\QueryBuilder $queryBuilder */
        $queryBuilder = Shopware()->Models()->getConnection()->createQueryBuilder();

        $result = $queryBuilder->select('plugin.id')
            ->from('s_core_plugins', 'plugin')
            ->where('plugin.name = :name')
            ->andWhere('plugin.active = 1')
            ->setParameter('name', 'SwagPaymentKlarnaKpm')
            ->execute()
            ->fetchColumn();

        return !empty($result);
    }

    /**
     * Helper method to find out if the klarna kco payment is active.
     * Necessary to disable the checkout-button.
     * @param array $user
     * @return bool
     */
    public function isKlarnaKcoPaymentActive($user)
    {
        $payment = $this->getPayment();
        if (!$payment) {
            return false;
        }
        $data = $this->get('modules')->Admin()->sGetPaymentMeanById($payment->getId(), $user);
        if (empty($data) || $data['id'] != $payment->getId()) {
            return false;
        }
        return true;
    }
}