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<?php |
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namespace Omnipay\Redsys\Message; |
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use SimpleXMLElement; |
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/** |
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* Redsys Webservice Purchase Request |
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*/ |
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class WebservicePurchaseRequest extends PurchaseRequest |
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{ |
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/** @var string */ |
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protected $liveWsdl = __DIR__ . "/redsys-webservice-live.wsdl"; |
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/** @var string */ |
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protected $testWsdl = __DIR__ . "/redsys-webservice-test.wsdl"; |
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/** @var string */ |
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protected $liveEndpoint = "https://sis.redsys.es/sis/services/SerClsWSEntrada"; |
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/** @var string */ |
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protected $testEndpoint = "https://sis-t.redsys.es:25443/sis/services/SerClsWSEntrada"; |
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public function getData() |
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{ |
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$this->validate('merchantId', 'terminalId', 'amount', 'currency', 'card'); |
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$card = $this->getCard(); |
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// @todo given test card doesn't validate? |
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if (!$this->getTestMode()) { |
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$card->validate(); |
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} |
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$data = array( |
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'DS_MERCHANT_AMOUNT' => $this->getAmountInteger(), |
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'DS_MERCHANT_ORDER' => $this->getTransactionId(), |
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'DS_MERCHANT_MERCHANTCODE' => $this->getMerchantId(), |
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'DS_MERCHANT_CURRENCY' => $this->getCurrencyNumeric(), // uses ISO-4217 codes |
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'DS_MERCHANT_PAN' => $card->getNumber(), |
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'DS_MERCHANT_CVV2' => $card->getCvv(), |
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'DS_MERCHANT_TRANSACTIONTYPE' => 'A', // 'Traditional payment' |
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'DS_MERCHANT_TERMINAL' => $this->getTerminalId(), |
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'DS_MERCHANT_EXPIRYDATE' => $card->getExpiryDate('ym'), |
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); |
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$request = new SimpleXMLElement('<REQUEST/>'); |
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$requestData = $request->addChild('DATOSENTRADA'); |
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foreach ($data as $tag => $value) { |
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$requestData->addChild($tag, $value); |
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} |
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$security = new Security; |
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$request->addChild('DS_SIGNATUREVERSION', Security::VERSION); |
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$request->addChild('DS_SIGNATURE', $security->createSignature( |
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$requestData->asXML(), |
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$data['DS_MERCHANT_ORDER'], |
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base64_decode($this->getHmacKey()) |
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)); |
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return $request; |
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// array( |
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// 'DATOSENTRADA' => $data, |
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// 'DS_SIGNATUREVERSION' => $request->DS_SIGNATUREVERSION, |
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// 'DS_SIGNATURE' => $request->DS_SIGNATURE, |
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// ); |
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} |
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public function sendData($data) |
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{ |
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// @todo either use SOAP client here, or wrap in soap yourself and just guzzle it |
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/* |
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use SoapClient; |
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$s = new SoapClient($fs, array('trace' => $this->debug, 'exceptions' => true)); |
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$result = $s->trataPeticion( |
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// $data as nested array rather than XML? |
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); |
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*/ |
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// DIY SOAP WRAPPER |
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$envelope = "<soapenv:Envelope xmlns:soapenv='http://schemas.xmlsoap.org/soap/envelope/'> |
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<soapenv:Header/> |
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<soapenv:Body> |
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<impl:trataPeticion xmlns:impl='http://webservice.sis.sermepa.es'> |
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<impl:datosEntrada> |
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".htmlspecialchars($data->asXML())." |
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</impl:datosEntrada> |
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</impl:trataPeticion> |
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</soapenv:Body> |
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</soapenv:Envelope>"; |
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$httpResponse = $this->httpClient->post( |
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$this->getEndpoint(), |
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array('SOAPAction' => 'trataPeticion'), |
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$envelope |
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)->send(); |
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// unwrap httpResponse into actual data as SimpleXMLElement tree |
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$envelope = $httpResponse->xml(); |
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$response_data = new SimpleXMLElement(htmlspecialchars_decode( |
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$envelope->children("http://schemas.xmlsoap.org/soap/envelope/") |
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->Body->children("http://webservice.sis.sermepa.es") |
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->trataPeticionResponse |
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->trataPeticionReturn |
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)); |
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// remove any reflected request data (this happens on error, including card number) |
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// if (isset($response_data->RECIBIDO)) { |
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// unset($response_data->RECIBIDO); |
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// } |
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return $this->response = new WebservicePurchaseResponse($this, $response_data); |
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} |
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} |
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If you return a value from a function or method, it should be a sub-type of the type that is given by the parent type f.e. an interface, or abstract method. This is more formally defined by the Lizkov substitution principle, and guarantees that classes that depend on the parent type can use any instance of a child type interchangably. This principle also belongs to the SOLID principles for object oriented design.
Let’s take a look at an example:
Our function
my_function
expects aPost
object, and outputs the author of the post. The base classPost
returns a simple string and outputting a simple string will work just fine. However, the child classBlogPost
which is a sub-type ofPost
instead decided to return anobject
, and is therefore violating the SOLID principles. If aBlogPost
were passed tomy_function
, PHP would not complain, but ultimately fail when executing thestrtoupper
call in its body.