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<?php |
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namespace Omnipay\Redsys\Message; |
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use Omnipay\Common\Message\AbstractResponse; |
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use Omnipay\Common\Message\RequestInterface; |
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use Omnipay\Common\Exception\InvalidResponseException; |
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/** |
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* Redsys Purchase Response |
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*/ |
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class WebservicePurchaseResponse extends AbstractResponse |
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{ |
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/** @var string */ |
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protected $returnSignature; |
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/** @var boolean */ |
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protected $usingUpcaseResponse = false; |
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/** |
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* Constructor |
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* |
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* @param RequestInterface $request the initiating request. |
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* @param mixed $data |
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* |
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* @throws InvalidResponseException If resopnse format is incorrect, data is missing, or signature does not match |
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*/ |
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public function __construct(RequestInterface $request, $data) |
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{ |
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parent::__construct($request, $data); |
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$security = new Security; |
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if (!isset($data['CODIGO'])) { |
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throw new InvalidResponseException('Invalid response from payment gateway (no data)'); |
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} |
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if (!isset($data['OPERACION'])) { |
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if ($data['CODIGO'] == '0') { |
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throw new InvalidResponseException('Invalid response from payment gateway (no data)'); |
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} else { |
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throw new InvalidResponseException('Invalid response from payment gateway ('.$data['CODIGO'].')'); |
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} |
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} |
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if (isset($data['OPERACION']['DS_ORDER'])) { |
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$this->usingUpcaseResponse = true; |
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} |
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$order = $this->GetKey('Ds_Order'); |
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if ($order === null) { |
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throw new InvalidResponseException(); |
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} |
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$signature_keys = array( |
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'Ds_Amount', |
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'Ds_Order', |
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'Ds_MerchantCode', |
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'Ds_Currency', |
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'Ds_Response', |
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'Ds_TransactionType', |
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'Ds_SecurePayment', |
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); |
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$signature_data = ''; |
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foreach ($signature_keys as $key) { |
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$value = $this->getKey($key); |
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if ($value === null) { |
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throw new InvalidResponseException('Invalid response from payment gateway (missing data)'); |
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} |
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$signature_data .= $value; |
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} |
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$this->returnSignature = $security->createSignature( |
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$signature_data, |
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$order, |
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$this->request->getHmacKey() |
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); |
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if ($this->returnSignature != $this->GetKey('Ds_Signature')) { |
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throw new InvalidResponseException('Invalid response from payment gateway (signature mismatch)'); |
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} |
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} |
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public function isSuccessful() |
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{ |
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$response_code = $this->getKey('Ds_Response'); |
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// check for field existence as well as value |
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return isset($this->data['CODIGO']) |
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&& $this->data['CODIGO'] == '0' |
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&& $response_code !== null |
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&& is_numeric($response_code) |
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&& 0 <= $response_code |
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&& 100 > $response_code; |
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} |
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/** |
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* Helper method to get a specific response parameter if available. |
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* |
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* @param string $key The key to look up |
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* |
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* @return null|mixed |
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*/ |
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protected function getKey($key) |
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{ |
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if ($this->usingUpcaseResponse) { |
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$key = strtoupper($key); |
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} |
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return isset($this->data['OPERACION'][$key]) ? $this->data['OPERACION'][$key] : null; |
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} |
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/** |
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* Get the authorisation code if available. |
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* |
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* @return null|string |
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*/ |
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public function getTransactionReference() |
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{ |
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return $this->getKey('Ds_AuthorisationCode'); |
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} |
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/** |
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* Get the merchant response message if available. |
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* |
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* @return null|string |
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*/ |
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public function getMessage() |
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{ |
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return $this->getKey('Ds_Response'); |
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} |
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/** |
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* Get the merchant data if available. |
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* |
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* @return null|string |
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*/ |
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public function getMerchantData() |
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{ |
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return $this->getKey('Ds_MerchantData'); |
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} |
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/** |
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* Get the card country if available. |
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* |
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* @return null|string ISO 3166-1 (3-digit numeric) format, if supplied |
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*/ |
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public function getCardCountry() |
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{ |
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return $this->getKey('Ds_Card_Country'); |
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} |
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} |
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