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Service::authenticate()   A
last analyzed

Complexity

Conditions 1
Paths 1

Size

Total Lines 17
Code Lines 10

Duplication

Lines 0
Ratio 0 %

Code Coverage

Tests 8
CRAP Score 1

Importance

Changes 0
Metric Value
c 0
b 0
f 0
dl 0
loc 17
ccs 8
cts 8
cp 1
rs 9.4285
cc 1
eloc 10
nc 1
nop 1
crap 1
1
<?php declare(strict_types=1);
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namespace OpenStack\Identity\v2;
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use GuzzleHttp\ClientInterface;
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use OpenStack\Common\Auth\IdentityService;
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use OpenStack\Common\Service\AbstractService;
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use OpenStack\Identity\v2\Models\Catalog;
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use OpenStack\Identity\v2\Models\Token;
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/**
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 * Represents the OpenStack Identity v2 service.
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 *
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 * @property \OpenStack\Identity\v2\Api $api
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 */
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class Service extends AbstractService implements IdentityService
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{
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    public static function factory(ClientInterface $client): self
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    {
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        return new static($client, new Api());
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    }
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    public function authenticate(array $options = []): array
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    {
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        $definition = $this->api->postToken();
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        $response = $this->execute($definition, array_intersect_key($options, $definition['params']));
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        $token = $this->model(Token::class, $response);
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        $serviceUrl = $this->model(Catalog::class, $response)->getServiceUrl(
0 ignored issues
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Bug introduced by
It seems like you code against a concrete implementation and not the interface OpenStack\Common\Resource\ResourceInterface as the method getServiceUrl() does only exist in the following implementations of said interface: OpenStack\Identity\v2\Models\Catalog, OpenStack\Identity\v3\Models\Catalog.

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();
    }
    
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32 1
            $options['catalogName'],
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            $options['catalogType'],
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            $options['region'],
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            $options['urlType']
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        );
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        return [$token, $serviceUrl];
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    }
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    /**
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     * Generates a new authentication token
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     *
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     * @param array $options {@see \OpenStack\Identity\v2\Api::postToken}
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     *
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     * @return Models\Token
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     */
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    public function generateToken(array $options = []): Token
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    {
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        $response = $this->execute($this->api->postToken(), $options);
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        return $this->model(Token::class, $response);
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    }
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}
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