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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 JsonSerializable; |
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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 Psr\Http\Message\ServerRequestInterface; |
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use Psr\Http\Message\UriFactoryInterface; |
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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\Model\AuthSessionInterface; |
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use function TMV\OpenIdClient\parse_callback_params; |
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use function TMV\OpenIdClient\parse_metadata_response; |
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use TMV\OpenIdClient\Token\ResponseTokenVerifier; |
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use TMV\OpenIdClient\Token\ResponseTokenVerifierInterface; |
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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\TokenSet; |
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use TMV\OpenIdClient\Token\TokenSetInterface; |
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use TMV\OpenIdClient\Token\TokenSetVerifier; |
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use TMV\OpenIdClient\Token\TokenSetVerifierInterface; |
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class AuthorizationService |
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{ |
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/** @var TokenSetVerifierInterface */ |
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private $tokenSetVerifier; |
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/** @var ResponseTokenVerifierInterface */ |
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private $responseTokenVerifier; |
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/** @var TokenDecrypterInterface */ |
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private $idTokenDecrypter; |
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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 UriFactoryInterface */ |
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private $uriFactory; |
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/** |
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* AuthorizationService constructor. |
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* |
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* @param TokenSetVerifierInterface|null $tokenSetVerifier |
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* @param ResponseTokenVerifierInterface|null $responseTokenVerifier |
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* @param TokenDecrypterInterface|null $idTokenDecrypter |
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* @param null|ClientInterface $client |
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* @param null|RequestFactoryInterface $requestFactory |
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* @param null|UriFactoryInterface $uriFactory |
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*/ |
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public function __construct( |
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?TokenSetVerifierInterface $tokenSetVerifier = null, |
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?ResponseTokenVerifierInterface $responseTokenVerifier = null, |
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?TokenDecrypterInterface $idTokenDecrypter = null, |
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?ClientInterface $client = null, |
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?RequestFactoryInterface $requestFactory = null, |
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?UriFactoryInterface $uriFactory = null |
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) { |
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$this->tokenSetVerifier = $tokenSetVerifier ?: new TokenSetVerifier(); |
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$this->responseTokenVerifier = $responseTokenVerifier ?: new ResponseTokenVerifier(); |
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$this->idTokenDecrypter = $idTokenDecrypter ?: new TokenDecrypter(); |
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$this->client = $client ?: Psr18ClientDiscovery::find(); |
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$this->requestFactory = $requestFactory ?: Psr17FactoryDiscovery::findRequestFactory(); |
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$this->uriFactory = $uriFactory ?: Psr17FactoryDiscovery::findUrlFactory(); |
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} |
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/** |
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* @param OpenIDClient $client |
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* @param array<string, mixed> $params |
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* |
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* @return string |
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*/ |
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public function getAuthorizationUri(OpenIDClient $client, array $params = []): string |
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{ |
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$clientMetadata = $client->getMetadata(); |
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$issuerMetadata = $client->getIssuer()->getMetadata(); |
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$endpointUri = $issuerMetadata->getAuthorizationEndpoint(); |
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$params = \array_filter(\array_merge([ |
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'client_id' => $clientMetadata->getClientId(), |
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'scope' => 'openid', |
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'response_type' => $clientMetadata->getResponseTypes()[0] ?? 'code', |
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'redirect_uri' => $clientMetadata->getRedirectUris()[0] ?? null, |
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], $params)); |
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foreach ($params as $key => $value) { |
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if (null === $value) { |
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unset($params[$key]); |
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} elseif ('claims' === $key && (\is_array($value) || $value instanceof JsonSerializable)) { |
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$params['claims'] = \json_encode($value); |
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} elseif (! \is_string($value)) { |
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$params[$key] = (string) $value; |
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} |
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} |
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if (empty($params['nonce']) && \in_array('id_token', \explode(' ', $params['response_type'] ?? ''), true)) { |
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throw new InvalidArgumentException('nonce MUST be provided for implicit and hybrid flows'); |
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} |
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return (string) $this->uriFactory->createUri($endpointUri) |
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->withQuery(\http_build_query($params)); |
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} |
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public function getCallbackParams(ServerRequestInterface $serverRequest, OpenIDClient $client): array |
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{ |
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return $this->processResponseParams($client, parse_callback_params($serverRequest)); |
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} |
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public function callback( |
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OpenIDClient $client, |
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array $params, |
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?string $redirectUri = null, |
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?AuthSessionInterface $authSession = null, |
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?int $maxAge = null |
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): TokenSetInterface { |
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$tokenSet = TokenSet::fromParams($params); |
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if ($params['id_token'] ?? null) { |
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$params['id_token'] = $this->idTokenDecrypter->decryptToken($client, $params['id_token']); |
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$tokenSet = TokenSet::fromParams($params); |
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$this->tokenSetVerifier->validate($tokenSet, $client, $authSession, true, $maxAge); |
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} |
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if (! $tokenSet->getCode()) { |
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return $tokenSet; |
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} |
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// get token |
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return $this->fetchToken($client, $tokenSet, $redirectUri, $authSession, $maxAge); |
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} |
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public function fetchToken( |
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OpenIDClient $client, |
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TokenSetInterface $tokenSet, |
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?string $redirectUri = null, |
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?AuthSessionInterface $authSession = null, |
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?int $maxAge = null |
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): TokenSetInterface { |
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$code = $tokenSet->getCode(); |
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if (! $code) { |
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throw new RuntimeException('Unable to fetch token without a code'); |
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} |
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if (! $redirectUri) { |
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$redirectUri = $client->getMetadata()->getRedirectUris()[0] ?? null; |
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} |
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if (! $redirectUri) { |
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throw new InvalidArgumentException('A redirect_uri should be provided'); |
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} |
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$params = $this->grant($client, [ |
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'grant_type' => 'authorization_code', |
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'code' => $code, |
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'redirect_uri' => $redirectUri, |
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]); |
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if (! ($params['id_token'] ?? null)) { |
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return TokenSet::fromParams($params); |
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} |
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$params['id_token'] = $this->idTokenDecrypter->decryptToken($client, $params['id_token']); |
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$authResponse = TokenSet::fromParams($params); |
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$this->tokenSetVerifier->validate($authResponse, $client, $authSession, false, $maxAge); |
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return $authResponse; |
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} |
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public function grant(OpenIDClient $client, array $params = []): array |
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{ |
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$authMethod = $client->getAuthMethodFactory() |
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->create($client->getMetadata()->getTokenEndpointAuthMethod()); |
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$tokenRequest = $this->requestFactory->createRequest('POST', $client->getTokenEndpoint()) |
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->withHeader('content-type', 'application/x-www-form-urlencoded'); |
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$tokenRequest = $authMethod->createRequest($tokenRequest, $client, $params); |
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try { |
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$response = $this->client->sendRequest($tokenRequest); |
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} catch (ClientExceptionInterface $e) { |
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throw new RuntimeException('Unable to get token response', 0, $e); |
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} |
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return $this->processResponseParams($client, parse_metadata_response($response)); |
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} |
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private function processResponseParams(OpenIDClient $client, array $params): array |
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{ |
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1 |
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if (\array_key_exists('error', $params)) { |
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throw OAuth2Exception::fromParameters($params); |
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} |
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if (\array_key_exists('response', $params)) { |
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$decrypted = $this->idTokenDecrypter->decryptToken($client, $params['response']); |
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$params = $this->responseTokenVerifier->validate($client, $decrypted); |
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} |
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1 |
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if (\array_key_exists('error', $params)) { |
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throw OAuth2Exception::fromParameters($params); |
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} |
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return $params; |
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} |
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} |
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thomasvargiu /
php-openid-client
