Collection   A
last analyzed

Complexity

Total Complexity 5

Size/Duplication

Total Lines 29
Duplicated Lines 0 %

Coupling/Cohesion

Components 0
Dependencies 1

Importance

Changes 0
Metric Value
wmc 5
lcom 0
cbo 1
dl 0
loc 29
rs 10
c 0
b 0
f 0

2 Methods

Rating   Name   Duplication   Size   Complexity  
A getClient() 0 8 2
A getActiveClient() 0 11 3
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<?php
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/*
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 * OAuth2 client for yii2 to login with HIAM server
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 *
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 * @link      https://github.com/hiqdev/yii2-hiam-authclient
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 * @package   yii2-hiam-authclient
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 * @license   BSD-3-Clause
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 * @copyright Copyright (c) 2015-2016, HiQDev (http://hiqdev.com/)
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 */
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namespace hiam\authclient;
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class Collection extends \yii\authclient\Collection
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{
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    /**
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     * Gets first client by default.
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     */
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    public function getClient($id = null)
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    {
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        if ($id === null) {
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            $id = array_keys($this->getClients())[0];
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        }
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        return parent::getClient($id);
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    }
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    /**
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     * Finds first active (connected) client.
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     */
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    public function getActiveClient()
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    {
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        foreach ($this->getClients() as $id => $client) {
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            $token = $client->getAccessToken();
0 ignored issues
show
Bug introduced by
It seems like you code against a concrete implementation and not the interface yii\authclient\ClientInterface as the method getAccessToken() does only exist in the following implementations of said interface: hiam\authclient\HiamClient, yii\authclient\BaseOAuth, yii\authclient\OAuth1, yii\authclient\OAuth2, yii\authclient\OpenIdConnect, yii\authclient\clients\Facebook, yii\authclient\clients\GitHub, yii\authclient\clients\Google, yii\authclient\clients\GoogleHybrid, yii\authclient\clients\LinkedIn, yii\authclient\clients\Live, yii\authclient\clients\Twitter, yii\authclient\clients\TwitterOAuth2, yii\authclient\clients\VKontakte, yii\authclient\clients\Yandex.

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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            if ($token) {
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                return $client;
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            }
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        }
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        return;
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    }
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}
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