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src/Message/CompletePurchaseResponse.php (2 issues)

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<?php
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/*
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 * eCoin driver for Omnipay PHP payment library
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 *
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 * @link      https://github.com/hiqdev/omnipay-ecoin
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 * @package   omnipay-ecoin
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 * @license   MIT
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 * @copyright Copyright (c) 2015-2016, HiQDev (http://hiqdev.com/)
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 */
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namespace Omnipay\eCoin\Message;
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use Omnipay\Common\Exception\InvalidResponseException;
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use Omnipay\Common\Message\AbstractResponse;
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/**
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 * eCoin Complete Purchase Response.
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 */
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class CompletePurchaseResponse extends AbstractResponse
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{
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    public function __construct(CompletePurchaseRequest $request, $data)
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    {
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        $this->request = $request;
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        $this->data    = $data;
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        if ($this->getHash() !== $this->calculateHash()) {
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            throw new InvalidResponseException('Invalid hash');
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        }
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    }
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    /**
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     * Whether the payment is successful.
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     * @return boolean
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     */
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    public function isSuccessful()
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    {
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        return true;
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    }
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    /**
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     * Whether the payment is test.
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     * XXX TODO.
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     * @return boolean
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     */
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    public function getTestMode()
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    {
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        return (bool) $this->data['TEST_VAR_TO_BE_SET'];
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    }
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    /**
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     * {@inheritdoc}
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     * @return string
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     */
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    public function getTransactionId()
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    {
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        return $this->data['ECM_INV_NO'];
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    }
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    /**
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     * {@inheritdoc}
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     * @return string
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     */
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    public function getTransactionReference()
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    {
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        return $this->data['ECM_TRANS_ID'];
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    }
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    /**
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     * {@inheritdoc}
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     * @return string
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     */
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    public function getAmount()
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    {
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        return $this->data['ECM_ITEM_COST'];
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    }
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    /**
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     * Returns the currency.
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     * @return string
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     */
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    public function getCurrency()
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    {
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        return 'USD';
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    }
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    /**
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     * Returns the payer ID.
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     * @return string
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     */
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    public function getPayer()
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    {
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        return $this->data['ECM_PAYER_ID'];
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    }
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    /**
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     * Returns the payment date.
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     * @return string
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     */
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    public function getTime()
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    {
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        return date('c', $this->data['ECM_TRANS_DATE']);
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    }
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    /**
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     * Get hash from request.
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     *
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     * @return string
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     */
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    public function getHash()
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    {
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        return $this->data['ECM_HASH'];
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    }
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    /**
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     * Calculate hash to validate incoming confirmation.
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     *
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     * @return string
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     */
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    public function calculateHash()
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    {
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        $str =  $this->data['ECM_TRANS_ID'] .
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                $this->data['ECM_TRANS_DATE'] .
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                $this->request->getPurse() .
0 ignored issues
show
It seems like you code against a concrete implementation and not the interface Omnipay\Common\Message\RequestInterface as the method getPurse() does only exist in the following implementations of said interface: Omnipay\eCoin\Message\AbstractRequest, Omnipay\eCoin\Message\CompletePurchaseRequest, Omnipay\eCoin\Message\PurchaseRequest.

Let’s take a look at an example:

interface User
{
    /** @return string */
    public function getPassword();
}

class MyUser implements User
{
    public function getPassword()
    {
        // return something
    }

    public function getDisplayName()
    {
        // return some name.
    }
}

class AuthSystem
{
    public function authenticate(User $user)
    {
        $this->logger->info(sprintf('Authenticating %s.', $user->getDisplayName()));
        // do something.
    }
}

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

  1. Change the type-hint for the parameter:

    class AuthSystem
    {
        public function authenticate(MyUser $user) { /* ... */ }
    }
    
  2. Add an additional type-check:

    class AuthSystem
    {
        public function authenticate(User $user)
        {
            if ($user instanceof MyUser) {
                $this->logger->info(/** ... */);
            }
    
            // or alternatively
            if ( ! $user instanceof MyUser) {
                throw new \LogicException(
                    '$user must be an instance of MyUser, '
                   .'other instances are not supported.'
                );
            }
    
        }
    }
    
Note: PHP Analyzer uses reverse abstract interpretation to narrow down the types inside the if block in such a case.
  1. Add the method to the interface:

    interface User
    {
        /** @return string */
        public function getPassword();
    
        /** @return string */
        public function getDisplayName();
    }
    
Loading history...
125 3
                $this->data['ECM_PAYER_ID'] .
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                $this->data['ECM_ITEM_COST'] .
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                $this->data['ECM_QTY'] .
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                $this->request->getSecret();
0 ignored issues
show
It seems like you code against a concrete implementation and not the interface Omnipay\Common\Message\RequestInterface as the method getSecret() does only exist in the following implementations of said interface: Omnipay\eCoin\Message\AbstractRequest, Omnipay\eCoin\Message\CompletePurchaseRequest, Omnipay\eCoin\Message\PurchaseRequest.

Let’s take a look at an example:

interface User
{
    /** @return string */
    public function getPassword();
}

class MyUser implements User
{
    public function getPassword()
    {
        // return something
    }

    public function getDisplayName()
    {
        // return some name.
    }
}

class AuthSystem
{
    public function authenticate(User $user)
    {
        $this->logger->info(sprintf('Authenticating %s.', $user->getDisplayName()));
        // do something.
    }
}

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

  1. Change the type-hint for the parameter:

    class AuthSystem
    {
        public function authenticate(MyUser $user) { /* ... */ }
    }
    
  2. Add an additional type-check:

    class AuthSystem
    {
        public function authenticate(User $user)
        {
            if ($user instanceof MyUser) {
                $this->logger->info(/** ... */);
            }
    
            // or alternatively
            if ( ! $user instanceof MyUser) {
                throw new \LogicException(
                    '$user must be an instance of MyUser, '
                   .'other instances are not supported.'
                );
            }
    
        }
    }
    
Note: PHP Analyzer uses reverse abstract interpretation to narrow down the types inside the if block in such a case.
  1. Add the method to the interface:

    interface User
    {
        /** @return string */
        public function getPassword();
    
        /** @return string */
        public function getDisplayName();
    }
    
Loading history...
129
130 3
        return md5($str);
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    }
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}
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