Completed
Pull Request — 0.0.35 (#657)
by thomas
07:44
created

Key::getAddress()   A

Complexity

Conditions 1
Paths 1

Size

Total Lines 4
Code Lines 2

Duplication

Lines 0
Ratio 0 %

Code Coverage

Tests 2
CRAP Score 1

Importance

Changes 0
Metric Value
cc 1
eloc 2
nc 1
nop 0
dl 0
loc 4
ccs 2
cts 2
cp 1
crap 1
rs 10
c 0
b 0
f 0
1
<?php
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namespace BitWasp\Bitcoin\Crypto\EcAdapter\Key;
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use BitWasp\Bitcoin\Crypto\EcAdapter\Serializer\Key\PublicKeySerializerInterface;
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use BitWasp\Bitcoin\Crypto\Hash;
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use BitWasp\Bitcoin\Serializable;
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use BitWasp\Buffertools\BufferInterface;
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abstract class Key extends Serializable implements KeyInterface
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{
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    /**
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     * @var BufferInterface
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     */
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    protected $pubKeyHash;
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    /**
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     * @return bool
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     */
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    public function isPrivate()
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    {
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        return $this instanceof PrivateKeyInterface;
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    }
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    /**
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     * @param PublicKeySerializerInterface|null $serializer
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     * @return \BitWasp\Buffertools\BufferInterface
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     */
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    public function getPubKeyHash(PublicKeySerializerInterface $serializer = null)
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    {
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        if ($this instanceof PrivateKeyInterface) {
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            $publicKey = $this->getPublicKey();
0 ignored issues
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Bug introduced by
It seems like you code against a specific sub-type and not the parent class BitWasp\Bitcoin\Crypto\EcAdapter\Key\Key as the method getPublicKey() does only exist in the following sub-classes of BitWasp\Bitcoin\Crypto\EcAdapter\Key\Key: BitWasp\Bitcoin\Crypto\E...l\PhpEcc\Key\PrivateKey, BitWasp\Bitcoin\Crypto\E...ecp256k1\Key\PrivateKey. Maybe you want to instanceof check for one of these explicitly?

Let’s take a look at an example:

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

class MyUser extends 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 sub-classes 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 parent class:

    abstract class User
    {
        /** @return string */
        abstract public function getPassword();
    
        /** @return string */
        abstract public function getDisplayName();
    }
    
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        } else {
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            $publicKey = $this;
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        }
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        if (null === $this->pubKeyHash) {
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            $this->pubKeyHash = Hash::sha256ripe160($serializer ? $serializer->serialize($publicKey) : $publicKey->getBuffer());
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        }
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        return $this->pubKeyHash;
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    }
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}
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