League\OAuth2\Client\Provider\Apple

Complexity

Total Complexity

25

Size/Duplication

Total Lines	230
Duplicated Lines	0 %

Coupling/Cohesion

Components	1
Dependencies	10

Test Coverage

Coverage

64.05%

Importance

Changes

0

13 Methods

Rating	Name	Duplication	Size	Complexity
A	__construct()	0	16	4
A	createAccessToken()	0	4	1
A	getScopeSeparator()	0	4	1
A	getAuthorizationParameters()	0	8	3
A	fetchResourceOwnerDetails()	0	4	3
A	getBaseAuthorizationUrl()	0	4	1
A	getBaseAccessTokenUrl()	0	4	1
A	getResourceOwnerDetailsUrl()	0	4	1
A	getDefaultScopes()	0	4	1
A	checkResponse()	0	10	4
A	createResourceOwner()	0	11	3
A	getAccessToken()	0	34	1
A	getLocalKey()	0	4	1

<?php

namespace League\OAuth2\Client\Provider;

use Exception;
use InvalidArgumentException;
use Jose\Component\Core\AlgorithmManager;
use Jose\Component\KeyManagement\JWKFactory;
use Jose\Component\Signature\Algorithm\ES256;
use Jose\Component\Signature\JWSBuilder;
use Jose\Component\Signature\Serializer\CompactSerializer;
use League\OAuth2\Client\Grant\AbstractGrant;
use League\OAuth2\Client\Provider\Exception\AppleAccessDeniedException;
use League\OAuth2\Client\Token\AccessToken;
use League\OAuth2\Client\Token\AccessTokenInterface;
use League\OAuth2\Client\Token\AppleAccessToken;
use League\OAuth2\Client\Tool\BearerAuthorizationTrait;
use Psr\Http\Message\ResponseInterface;

class Apple extends AbstractProvider
{
    use BearerAuthorizationTrait;

    /**
     * Default scopes
     *
     * @var array
     */
    public $defaultScopes = ['name', 'email'];

    /**
     * @var string the team id
     */
    protected $teamId;

    /**
     * @var string the key file id
     */
    protected $keyFileId;

    /**
     * @var string the key file path
     */
    protected $keyFilePath;

    /**
     * Constructs Apple's OAuth 2.0 service provider.
     *
     * @param array $options
     * @param array $collaborators
     */
    public function __construct(array $options = [], array $collaborators = [])
    {
        if (empty($options['teamId'])) {
            throw new InvalidArgumentException('Required option not passed: "teamId"');
        }

        if (empty($options['keyFileId'])) {
            throw new InvalidArgumentException('Required option not passed: "keyFileId"');
        }

        if (empty($options['keyFilePath'])) {
            throw new InvalidArgumentException('Required option not passed: "keyFilePath"');
        }

        parent::__construct($options, $collaborators);
    }

    /**
     * Creates an access token from a response.
     *
     * The grant that was used to fetch the response can be used to provide
     * additional context.
     *
     * @param  array         $response
     * @param  AbstractGrant $grant
     * @return AccessTokenInterface
     */
    protected function createAccessToken(array $response, AbstractGrant $grant)
    {
        return new AppleAccessToken($response);
    }

    /**
     * Get the string used to separate scopes.
     *
     * @return string
     */
    protected function getScopeSeparator()
    {
        return ' ';
    }

    /**
     * Change response mode when scope requires it
     *
     * @param array $options
     *
     * @return array
     */
    protected function getAuthorizationParameters(array $options)
    {
        $options = parent::getAuthorizationParameters($options);
        if (strpos($options['scope'], 'name') !== false || strpos($options['scope'], 'email') !== false) {
            $options['response_mode'] = 'form_post';
        }
        return $options;
    }

    /**
     * @param AccessToken $token
     *
     * @return mixed
     */
    protected function fetchResourceOwnerDetails(AccessToken $token)
    {
        return json_decode(array_key_exists('user', $_GET) ? $_GET['user'] : (array_key_exists('user', $_POST) ? $_POST['user'] : '[]'), true);
    }

    /**
     * Get authorization url to begin OAuth flow
     *
     * @return string
     */
    public function getBaseAuthorizationUrl()
    {
        return 'https://appleid.apple.com/auth/authorize';
    }

    /**
     * Get access token url to retrieve token
     *
     * @return string
     */
    public function getBaseAccessTokenUrl(array $params)
    {
        return 'https://appleid.apple.com/auth/token';
    }

    /**
     * Get provider url to fetch user details
     *
     * @param AccessToken $token
     *
     * @return string
     * @throws Exception
     */
    public function getResourceOwnerDetailsUrl(AccessToken $token)
    {
        throw new Exception('No Apple ID REST API available yet!');
    }

    /**
     * Get the default scopes used by this provider.
     *
     * This should not be a complete list of all scopes, but the minimum
     * required for the provider user interface!
     *
     * @return array
     */
    protected function getDefaultScopes()
    {
        return $this->defaultScopes;
    }

    /**
     * Check a provider response for errors.
     *
     * @param  ResponseInterface $response
     * @param  array             $data     Parsed response data
     * @return void
     * @throws AppleAccessDeniedException
     */
    protected function checkResponse(ResponseInterface $response, $data)
    {
        if ($response->getStatusCode() >= 400) {
            throw new AppleAccessDeniedException(
                $data['error'] ?: $response->getReasonPhrase(),
                $data['code'] ?: $response->getStatusCode(),
                $response

$response is of type object<Psr\Http\Message\ResponseInterface>, but the function expects a array|string.

            );
        }
    }

    /**
     * Generate a user object from a successful user details request.
     *
     * @param  array $response
     * @param  Apple $token
     * @return AppleResourceOwner
     */
    protected function createResourceOwner(array $response, AccessToken $token)
    {
        return new AppleResourceOwner(
            array_merge(
                $response, [
                'email' => isset($token->getValues()['email'])
                ? $token->getValues()['email'] : (isset($response['email']) ? $response['email'] : null)
                ]
            ), $token->getResourceOwnerId()
        );
    }

    /**
     * {@inheritDoc}
     */
    public function getAccessToken($grant, array $options = [])
    {
        $algorithmManager = new AlgorithmManager([new ES256()]);
        $jwsBuilder = new JWSBuilder($algorithmManager);
        $jws = $jwsBuilder
            ->create()
            ->withPayload(
                json_encode(
                    [
                    'iat' => time(),
                    'exp' => time() + 600,
                    'iss' => $this->teamId,
                    'aud' => 'https://appleid.apple.com',
                    'sub' => $this->clientId
                    ]
                )
            )
            ->addSignature(
                $this->getLocalKey(), [
                'alg' => 'ES256',
                'kid' => $this->keyFileId
                ]
            )
            ->build();

        $serializer = new CompactSerializer();
        $token = $serializer->serialize($jws);

        $options += [
         'client_secret'    => $token
        ];

        return parent::getAccessToken($grant, $options);
    }

    /**
     * @return \Jose\Component\Core\JWK
     */
    public function getLocalKey()
    {
        return JWKFactory::createFromKeyFile($this->keyFilePath);
    }
}