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<?php |
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declare( strict_types = 1 ); |
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namespace WMDE\Fundraising\Frontend\App\RouteHandlers; |
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use Psr\Log\LogLevel; |
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use Symfony\Component\HttpFoundation\ParameterBag; |
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use Symfony\Component\HttpFoundation\Request; |
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use Symfony\Component\HttpFoundation\Response; |
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use WMDE\Euro\Euro; |
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use WMDE\Fundraising\Frontend\PaymentContext\ResponseModel\PaypalNotificationResponse; |
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use WMDE\Fundraising\Frontend\Factories\FunFunFactory; |
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use WMDE\Fundraising\Frontend\Infrastructure\PayPalPaymentNotificationVerifierException; |
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use WMDE\Fundraising\Frontend\PaymentContext\RequestModel\PayPalPaymentNotificationRequest; |
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/** |
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* @license GNU GPL v2+ |
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* @author Kai Nissen < [email protected] > |
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*/ |
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class PayPalNotificationHandler { |
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private const MSG_NOT_HANDLED = 'PayPal request not handled'; |
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private $ffFactory; |
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public function __construct( FunFunFactory $ffFactory ) { |
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$this->ffFactory = $ffFactory; |
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} |
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public function handle( Request $request ): Response { |
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$post = $request->request; |
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try { |
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$this->ffFactory->getPayPalPaymentNotificationVerifier()->verify( $post->all() ); |
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} catch ( PayPalPaymentNotificationVerifierException $e ) { |
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$this->ffFactory->getPaypalLogger()->log( LogLevel::ERROR, $e->getMessage(), [ |
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'post_vars' => $request->request->all() |
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] ); |
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return $this->createErrorResponse( $e ); |
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} |
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if ( !$this->requestIsForPaymentCompletion( $post ) ) { |
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$this->ffFactory->getPaypalLogger()->log( LogLevel::INFO, self::MSG_NOT_HANDLED, [ 'post_vars' => $post->all() ] ); |
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return new Response( '', Response::HTTP_OK ); |
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} |
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$useCase = $this->ffFactory->newHandlePayPalPaymentCompletionNotificationUseCase( $this->getUpdateToken( $post ) ); |
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$response = $useCase->handleNotification( $this->newUseCaseRequestFromPost( $post ) ); |
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$this->logResponseIfNeeded( $response, $request ); |
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return new Response( '', Response::HTTP_OK ); # PayPal expects an empty response |
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} |
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private function getUpdateToken( ParameterBag $postRequest ): string { |
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return $this->getValueFromCustomVars( $postRequest->get( 'custom', '' ), 'utoken' ); |
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} |
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private function getValueFromCustomVars( string $customVars, string $key ): string { |
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$vars = json_decode( $customVars, true ); |
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return !empty( $vars[$key] ) ? $vars[$key] : ''; |
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} |
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private function requestIsForPaymentCompletion( ParameterBag $post ): bool { |
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return $this->isSuccessfulPaymentNotification( $post ) || ( |
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$this->isForRecurringPayment( $post ) && |
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!$this->isRecurringPaymentCompletion( $post ) |
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); |
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} |
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private function isSuccessfulPaymentNotification( ParameterBag $post ): bool { |
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return $post->get( 'payment_status', '' ) === 'Completed' || $post->get( 'payment_status' ) === 'Processed'; |
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} |
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private function isRecurringPaymentCompletion( ParameterBag $post ): bool { |
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return $post->get( 'txn_type', '' ) === 'subscr_payment'; |
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} |
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private function isForRecurringPayment( ParameterBag $post ): bool { |
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return strpos( $post->get( 'txn_type', '' ), 'subscr_' ) === 0; |
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} |
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private function newUseCaseRequestFromPost( ParameterBag $postRequest ): PayPalPaymentNotificationRequest { |
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return ( new PayPalPaymentNotificationRequest() ) |
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->setTransactionType( $postRequest->get( 'txn_type', '' ) ) |
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->setTransactionId( $postRequest->get( 'txn_id', '' ) ) |
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->setPayerId( $postRequest->get( 'payer_id', '' ) ) |
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->setSubscriptionId( $postRequest->get( 'subscr_id', '' ) ) |
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->setPayerEmail( $postRequest->get( 'payer_email', '' ) ) |
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->setPayerStatus( $postRequest->get( 'payer_status', '' ) ) |
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->setPayerFirstName( $postRequest->get( 'first_name', '' ) ) |
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->setPayerLastName( $postRequest->get( 'last_name', '' ) ) |
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->setPayerAddressName( $postRequest->get( 'address_name', '' ) ) |
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->setPayerAddressStreet( $postRequest->get( 'address_street', '' ) ) |
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->setPayerAddressPostalCode( $postRequest->get( 'address_zip', '' ) ) |
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->setPayerAddressCity( $postRequest->get( 'address_city', '' ) ) |
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->setPayerAddressCountryCode( $postRequest->get( 'address_country_code', '' ) ) |
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->setPayerAddressStatus( $postRequest->get( 'address_status', '' ) ) |
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->setInternalId( (int)$postRequest->get( 'item_number', 0 ) ) |
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->setCurrencyCode( $postRequest->get( 'mc_currency', '' ) ) |
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->setTransactionFee( $postRequest->get( 'mc_fee', '0' ) ) // No Euro class to avoid exceptions on fees < 0 |
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->setAmountGross( Euro::newFromString( $postRequest->get( 'mc_gross', '0' ) ) ) |
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->setSettleAmount( Euro::newFromString( $postRequest->get( 'settle_amount', '0' ) ) ) |
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->setPaymentTimestamp( $postRequest->get( 'payment_date', '' ) ) |
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->setPaymentStatus( $postRequest->get( 'payment_status', '' ) ) |
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->setPaymentType( $postRequest->get( 'payment_type', '' ) ); |
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} |
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private function createErrorResponse( PayPalPaymentNotificationVerifierException $e ): Response { |
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switch ( $e->getCode() ) { |
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case PayPalPaymentNotificationVerifierException::ERROR_WRONG_RECEIVER: |
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return new Response( $e->getMessage(), Response::HTTP_FORBIDDEN ); |
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case PayPalPaymentNotificationVerifierException::ERROR_VERIFICATION_FAILED: |
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return new Response( $e->getMessage(), Response::HTTP_FORBIDDEN ); |
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case PayPalPaymentNotificationVerifierException::ERROR_UNSUPPORTED_CURRENCY: |
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return new Response( $e->getMessage(), Response::HTTP_NOT_ACCEPTABLE ); |
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default: |
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return new Response( $e->getMessage(), Response::HTTP_INTERNAL_SERVER_ERROR ); |
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} |
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} |
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private function logResponseIfNeeded( PaypalNotificationResponse $response, Request $request ) { |
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if ( $response->notificationWasHandled() ) { |
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return; |
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} |
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$context = $response->getContext(); |
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$message = $context['message'] ?? self::MSG_NOT_HANDLED; |
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$logLevel = $response->hasErrors() ? LogLevel::ERROR : LogLevel::INFO; |
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unset( $context['message'] ); |
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$context['post_vars'] = $request->request->all(); |
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$this->ffFactory->getPaypalLogger()->log( $logLevel, $message, $context ); |
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} |
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} |
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wmde /
FundraisingFrontend
