TokenEndpoint::getGrantType() - Code Metrics - Inspection of "token endpoint" - php-guard/oauth-server - Measure and Improve Code Quality continuously with Scrutinizer

Passed
Push — master ( a8d522...c97e91 )

by Alexandre
created 2018-03-09 16:42 UTC
TokenEndpoint::getGrantType() A

↳ Parent: TokenEndpoint
Complexity

Conditions	1
Paths	1
Size

Total Lines	3
Code Lines	1
Duplication

Lines	0
Ratio	0 %
Code Coverage

Tests	0
CRAP Score	2
Importance

Changes
Metric	Value
cc	1
eloc	1
nc	1
nop	0
dl	0
loc	3
ccs	0
cts	0
cp	0
crap	2
rs	10
c	0
b	0
f	0
<?php
/**
 * Created by PhpStorm.
 * User: Alexandre
 * Date: 08/03/2018
 * Time: 22:22
 */

namespace OAuth2\Endpoints;


use GuzzleHttp\Psr7\Response;
use OAuth2\ClientAuthentication\ClientAuthenticationMethodManager;
filter:
    dependency_paths: ["lib/*"]
use OAuth2\Exceptions\OAuthException;
use OAuth2\GrantTypes\GrantTypeInterface;
use OAuth2\GrantTypes\GrantTypeManager;
use OAuth2\Roles\ClientInterface;
use OAuth2\Roles\Clients\ConfidentialClient;
use OAuth2\Storages\AccessTokenStorageInterface;
use OAuth2\Storages\ClientStorageInterface;
use OAuth2\Storages\RefreshTokenStorageInterface;
use Psr\Http\Message\ResponseInterface;
use Psr\Http\Message\ServerRequestInterface;

class TokenEndpoint implements EndpointInterface
{

    /**
     * @var ClientStorageInterface
     */
    private $clientStorage;
    /**
     * @var GrantTypeManager
     */
    private $grantTypeManager;
    /**
     * @var ClientAuthenticationMethodManager
     */
    private $clientAuthenticationMethodManager;
    /**
     * @var AccessTokenStorageInterface
     */
    private $accessTokenStorage;
    /**
     * @var RefreshTokenStorageInterface
     */
    private $refreshTokenStorage;

    /**
     * @var ClientInterface|null
     */
    protected $client;
    /**
     * @var GrantTypeInterface|null
     */
    protected $grantType;

    public function __construct(ClientStorageInterface $clientStorage, GrantTypeManager $grantTypeManager,
                                ClientAuthenticationMethodManager $clientAuthenticationMethodManager,
                                AccessTokenStorageInterface $accessTokenStorage,
                                RefreshTokenStorageInterface $refreshTokenStorage)
    {
        $this->clientStorage = $clientStorage;
        $this->grantTypeManager = $grantTypeManager;
        $this->clientAuthenticationMethodManager = $clientAuthenticationMethodManager;
        $this->accessTokenStorage = $accessTokenStorage;
        $this->refreshTokenStorage = $refreshTokenStorage;
    }

    function handleRequest(ServerRequestInterface $request): ResponseInterface

    {
        if ($request->getMethod() === 'POST') {
            $requestData = $request->getParsedBody();
        } else {
            return new Response(404);
        }

        try {
            // Authentication Request Validation
            // The Authorization Server MUST validate all the OAuth 2.0 parameters according to the OAuth 2.0 specification.
            $this->verifyRequestData($request, $requestData);

            $responseData = $this->getGrantType()->handleAccessTokenRequest($this, $requestData);

        } catch (OAuthException $e) {
            /**
             * If the Authorization Server encounters any error, it MUST return an error response, per Section 5.2
             */
            $status = 400;
            $headers = ['Content-Type' => 'application/json'];
            if($e->getError() === 'invalid_client') {
                $status = 401;
                    if($request->hasHeader('Authorization')) {
                        $headers['WWW-Authenticate'] = 'Basic';
                }
            }
            return new Response($status, $headers, $e->jsonSerialize());
        }

        return new Response(200, [
            'Content-Type' => 'application/json',
            'Cache-Control' => 'no-store',
            'Pragma' => 'no-cache'
        ], json_encode($responseData));
    }

    /**
     * @param ServerRequestInterface $request
     * @param array                  $requestData
     * @throws OAuthException
     */
    protected function verifyRequestData(ServerRequestInterface $request, array $requestData)
    {
        if (empty($requestData['grant_type'])) {
            throw new OAuthException('invalid_request', 'The request is missing the required parameter grant_type.',
                'https://tools.ietf.org/html/rfc6749#section-4.1');
        }

        if (!($grantType = $this->grantTypeManager->getGrantType($requestData['grant_type']))) {
            throw new OAuthException('unsupported_grant_type',
                'The authorization grant type is not supported by the authorization server',
                'https://tools.ietf.org/html/rfc6749#section-4.1');
        }
        $this->grantType = $grantType;

        $this->verifyClient($request, $requestData);

        $supportedGrantTypes = $this->client->getMetadata()->getGrantTypes() ?: ['authorization_code'];
        if (!in_array($requestData['grant_type'], $supportedGrantTypes)) {
            throw new OAuthException('unauthorized_client',
                'The authenticated client is not authorized to use this authorization grant type.',
                'https://tools.ietf.org/html/rfc6749#section-4.1');
        }

    }

    protected function verifyClient(ServerRequestInterface $request, array $requestData)
    {
        // TODO authenticate if client is confidential
        // http://openid.net/specs/openid-connect-core-1_0.html#ClientAuthentication

        /**
         * require client authentication for confidential clients or for any
         * client that was issued client credentials (or with other
         * authentication requirements)
         */
        $this->client = $this->clientAuthenticationMethodManager->authenticate($request, $requestData);

        $this->getGrantType();
    }

    /**
     * @return null|GrantTypeInterface
     */
    public function getGrantType()
    {
        return $this->grantType;
    }

    /**
     * @return null|ClientInterface
     */
    public function getClient(): ?ClientInterface
    {
        return $this->client;
    }

    public function issueTokens(string $scope, string $resourceOwnerIdentifier, ?string $authorizationCode = null)
    {
        return array_merge(
            $this->issueAccessToken($scope, $resourceOwnerIdentifier, $authorizationCode),
            $this->issueRefreshToken($scope, $resourceOwnerIdentifier)
        );
    }

    public function issueAccessToken(string $scope, string $resourceOwnerIdentifier, ?string $authorizationCode = null): array
    {
        $accessToken = $this->accessTokenStorage->generate($scope, $this->client->getIdentifier(),
        $accessToken = $this->accessTokenStorage->generate($scope, $this->client->/** @scrutinizer ignore-call */ getIdentifier(),
            $resourceOwnerIdentifier, $authorizationCode);
        return [
            'access_token' => $accessToken->getToken(),
            'token_type' => $accessToken->getType(),
            'expires_in' => $this->accessTokenStorage->getLifetime()
        ];
    }

    public function issueRefreshToken(string $scope, string $resourceOwnerIdentifier)
    {
        $accessToken = $this->refreshTokenStorage->generate($scope, $this->client->getIdentifier(), $resourceOwnerIdentifier);
        return [
            'refresh_token' => $accessToken->getToken()
        ];
    }
}
php-guard / oauth-server

Push — master ( a8d522...c97e91 )

TokenEndpoint::getGrantType() A

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