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<?php |
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declare(strict_types=1); |
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namespace TMV\OpenIdClient\Service; |
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use Http\Discovery\Psr17FactoryDiscovery; |
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use Http\Discovery\Psr18ClientDiscovery; |
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use Psr\Http\Client\ClientExceptionInterface; |
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use Psr\Http\Client\ClientInterface; |
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use Psr\Http\Message\RequestFactoryInterface; |
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use TMV\OpenIdClient\ClientInterface as OpenIDClient; |
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use TMV\OpenIdClient\Exception\InvalidArgumentException; |
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use TMV\OpenIdClient\Exception\OAuth2Exception; |
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use TMV\OpenIdClient\Exception\RuntimeException; |
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use TMV\OpenIdClient\Token\IdTokenVerifier; |
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use TMV\OpenIdClient\Token\IdTokenVerifierInterface; |
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use TMV\OpenIdClient\Token\TokenDecrypter; |
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use TMV\OpenIdClient\Token\TokenDecrypterInterface; |
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use TMV\OpenIdClient\Token\TokenSetInterface; |
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class UserinfoService |
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{ |
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/** @var ClientInterface */ |
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private $client; |
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/** @var RequestFactoryInterface */ |
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private $requestFactory; |
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/** @var IdTokenVerifierInterface */ |
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private $idTokenVerifier; |
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/** @var TokenDecrypterInterface */ |
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private $idTokenDecrypter; |
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/** |
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* UserinfoService constructor. |
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* |
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* @param null|ClientInterface $client |
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* @param IdTokenVerifierInterface|null $idTokenVerifier |
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* @param TokenDecrypterInterface|null $idTokenDecrypter |
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* @param null|RequestFactoryInterface $requestFactory |
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*/ |
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public function __construct( |
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?ClientInterface $client = null, |
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?IdTokenVerifierInterface $idTokenVerifier = null, |
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?TokenDecrypterInterface $idTokenDecrypter = null, |
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?RequestFactoryInterface $requestFactory = null |
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) { |
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$this->client = $client ?: Psr18ClientDiscovery::find(); |
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$this->idTokenVerifier = $idTokenVerifier ?: new IdTokenVerifier(); |
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$this->idTokenDecrypter = $idTokenDecrypter ?: new TokenDecrypter(); |
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$this->requestFactory = $requestFactory ?: Psr17FactoryDiscovery::findRequestFactory(); |
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} |
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public function getUserInfo(OpenIDClient $client, TokenSetInterface $tokenSet): array |
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{ |
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$accessToken = $tokenSet->getAccessToken(); |
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if (! $accessToken) { |
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throw new RuntimeException('Unable to get an access token from the token set'); |
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} |
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$clientMetadata = $client->getMetadata(); |
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$issuerMetadata = $client->getIssuer()->getMetadata(); |
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$mTLS = true === $clientMetadata->get('tls_client_certificate_bound_access_tokens'); |
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$endpointUri = $issuerMetadata->getUserinfoEndpoint(); |
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if ($mTLS) { |
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$endpointUri = $issuerMetadata->getMtlsEndpointAliases()['userinfo_endpoint'] ?? $endpointUri; |
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} |
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if (! $endpointUri) { |
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throw new InvalidArgumentException('Invalid issuer userinfo endpoint'); |
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} |
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$expectJwt = $clientMetadata->getUserinfoSignedResponseAlg() |
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|| $clientMetadata->getUserinfoEncryptedResponseAlg() |
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|| $clientMetadata->getUserinfoEncryptedResponseEnc(); |
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$request = $this->requestFactory->createRequest('GET', $endpointUri) |
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->withHeader('accept', $expectJwt ? 'application/jwt' : 'application/json') |
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->withHeader('authorization', 'Bearer ' . $accessToken); |
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try { |
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$response = $this->client->sendRequest($request); |
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} catch (ClientExceptionInterface $e) { |
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throw new RuntimeException('Unable to get userinfo', 0, $e); |
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} |
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if (200 !== $response->getStatusCode()) { |
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throw OAuth2Exception::fromResponse($response); |
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} |
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if ($expectJwt) { |
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$token = $this->idTokenDecrypter->decryptToken($client, (string) $response->getBody(), 'userinfo'); |
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$payload = $this->idTokenVerifier->validateUserinfoToken($client, $token); |
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} else { |
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$payload = \json_decode((string) $response->getBody(), true); |
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} |
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if (! \is_array($payload)) { |
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throw new RuntimeException('Unable to parse userinfo claims'); |
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} |
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$idToken = $tokenSet->getIdToken(); |
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if (! $idToken) { |
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return $payload; |
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} |
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// check expected sub |
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$expectedSub = $tokenSet->claims()['sub'] ?? null; |
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if (! $expectedSub) { |
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throw new RuntimeException('Unable to get sub claim from id_token'); |
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} |
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if ($expectedSub !== ($payload['sub'] ?? null)) { |
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throw new RuntimeException( |
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\sprintf('Userinfo sub mismatch, expected %s, got: %s', $expectedSub, $payload['sub'] ?? null) |
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); |
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} |
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return $payload; |
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} |
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} |
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thomasvargiu /
php-openid-client
