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<?php |
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/** |
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* @author Rafał Muszyński <[email protected]> |
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* @copyright 2015 Sourcefabric z.ú. |
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* @license http://www.gnu.org/licenses/gpl-3.0.txt |
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*/ |
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namespace Newscoop\PaywallBundle\Adapter; |
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use Newscoop\PaywallBundle\Entity\OrderInterface; |
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use Symfony\Component\Routing\RouterInterface; |
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/** |
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* Omnipay adapter. |
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*/ |
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class GatewayAdapter |
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{ |
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/** |
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* Router. |
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* |
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* @var RouterInterface |
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*/ |
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protected $router; |
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/** |
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* Gateway. |
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* |
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* @var \Omnipay\Common\GatewayInterface|null |
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*/ |
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protected $gateway; |
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/** |
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* Construct. |
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* |
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* @param RouterInterface $router |
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* @param \Omnipay\Common\GatewayInterface|null $gateway |
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*/ |
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public function __construct(RouterInterface $router, $gateway = null) |
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{ |
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$this->router = $router; |
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$this->gateway = $gateway; |
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} |
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/** |
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* Purchase action. |
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* |
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* @param OrderInterface $order Order |
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* |
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* @return object |
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*/ |
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View Code Duplication |
public function purchase(OrderInterface $order) |
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{ |
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if ($this->gateway === null) { |
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return; |
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} |
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return $this->gateway->purchase(array_merge( |
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array( |
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'amount' => $order->getTotal(), |
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'currency' => $order->getCurrency(), |
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), |
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$this->getCancelAndReturnUrl() |
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))->send(); |
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} |
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/** |
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* Cplete purchase action. |
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* |
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* @param OrderInterface $order Order |
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* |
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* @return object |
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*/ |
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View Code Duplication |
public function completePurchase(OrderInterface $order) |
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{ |
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if ($this->gateway === null) { |
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return; |
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} |
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return $this->gateway->completePurchase(array_merge( |
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array( |
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'amount' => $order->getTotal(), |
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'currency' => $order->getCurrency(), |
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), |
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$this->getCancelAndReturnUrl() |
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))->send(); |
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} |
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private function getCancelAndReturnUrl() |
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{ |
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return array( |
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'cancelUrl' => $this->router->generate('paywall_plugin_purchase_cancel', array(), true), |
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'returnUrl' => $this->router->generate('paywall_plugin_purchase_return', array(), true), |
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); |
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} |
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/** |
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* Whether offline gateway is set or not. |
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* |
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* @return bool |
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*/ |
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public function isOfflineGateway() |
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{ |
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return $this->gateway ? false : true; |
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} |
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} |
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Let’s take a look at an example:
In the above example, the authenticate() method works fine as long as you just pass instances of MyUser. However, if you now also want to pass a different implementation of User which does not have a getDisplayName() method, the code will break.
Available Fixes
Change the type-hint for the parameter:
Add an additional type-check:
Add the method to the interface: