AppBundle\Security\ApiKeyAuthenticator

Complexity

Total Complexity

8

Size/Duplication

Total Lines	60
Duplicated Lines	0 %

Coupling/Cohesion

Components	0
Dependencies	8

Importance

Changes	2
Bugs	1	Features	1

4 Methods

Rating	Name	Duplication	Size	Complexity
A	__construct()	0	4	1
A	createToken()	0	13	2
A	supportsToken()	0	4	2
B	authenticateToken()	0	31	3

<?php

namespace AppBundle\Security;

use Symfony\Component\HttpFoundation\Request;
use Symfony\Component\Security\Core\Authentication\Token\PreAuthenticatedToken;
use Symfony\Component\Security\Core\Authentication\Token\TokenInterface;
use Symfony\Component\Security\Core\Exception\CustomUserMessageAuthenticationException;
use Symfony\Component\Security\Core\Exception\BadCredentialsException;
use Symfony\Component\Security\Core\User\UserProviderInterface;
use Symfony\Component\Security\Http\Authentication\SimplePreAuthenticatorInterface;
use Doctrine\Common\Persistence\ManagerRegistry;

class ApiKeyAuthenticator implements SimplePreAuthenticatorInterface
{
    private $registry;

    public function __construct(ManagerRegistry $registry)
    {
        $this->registry = $registry;
    }

    public function createToken(Request $request, $providerKey)
    {
        $apiKey = $request->headers->get('API-Key-Token');
        if (!$apiKey) {
            throw new BadCredentialsException();
        }

        return new PreAuthenticatedToken(
                 'anon.',
                 $apiKey,
                $providerKey
            );
    }

    public function supportsToken(TokenInterface $token, $providerKey)
    {
        return $token instanceof PreAuthenticatedToken && $token->getProviderKey() === $providerKey;
    }

    public function authenticateToken(TokenInterface $token, UserProviderInterface $userProvider, $providerKey)
    {
        if (!$userProvider instanceof ApiKeyUserProvider) {
            throw new \InvalidArgumentException(
                sprintf(
                    'The user provider must be an instance of ApiKeyUserProvider (%s was given).',
                    get_class($userProvider)
                )
            );
        }

        $apiKey = $token->getCredentials();
        $username = $userProvider->getUsernameForApiKey($apiKey);

        if (!$username) {
            // CAUTION: this message will be returned to the client
            // (so don't put any un-trusted messages / error strings here)
            throw new CustomUserMessageAuthenticationException(
                sprintf('API Key "%s" does not exist.', $apiKey)
            );
        }

        $user = $userProvider->loadUserByUsername($username);

        return new PreAuthenticatedToken(
            $user,
            $apiKey,
            $providerKey,
            $user->getRoles()
        );
    }
}