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<?php |
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declare(strict_types=1); |
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namespace Facile\OAuth2\HttpClient; |
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use Facile\OAuth2\HttpClient\Authorization\AuthorizationProvider; |
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use Facile\OAuth2\HttpClient\Authorization\NullProvider; |
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use Facile\OAuth2\HttpClient\Exception\RuntimeException; |
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use Facile\OAuth2\HttpClient\Request\OAuth2Request; |
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use Facile\OAuth2\HttpClient\Request\OAuth2RequestInterface; |
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use Facile\OpenIDClient\Client\ClientInterface; |
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use Facile\OpenIDClient\Service\AuthorizationService; |
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use Facile\OpenIDClient\Token\TokenSetInterface; |
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use Http\Client\Common\Plugin; |
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use Http\Promise\Promise; |
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use function in_array; |
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use Psr\Http\Message\RequestInterface; |
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use Psr\Http\Message\ResponseInterface; |
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use Psr\Log\LoggerInterface; |
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use Psr\Log\NullLogger; |
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final class OAuth2Plugin implements Plugin |
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{ |
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/** @var AuthorizationService */ |
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private $authorizationService; |
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/** @var ClientInterface */ |
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private $client; |
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/** @var bool */ |
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private $authenticateFirst; |
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/** @var AuthorizationProvider */ |
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private $authorizationProvider; |
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/** @var array<string, mixed> */ |
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private $grantParams; |
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/** @var array<string, mixed> */ |
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private $defaultParams = [ |
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'grant_type' => 'client_credentials', |
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]; |
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/** @var LoggerInterface */ |
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private $logger; |
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/** |
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* @param AuthorizationService $authorizationService Authorization Service |
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* @param ClientInterface $client OAuth2 client |
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* @param AuthorizationProvider|null $tokenProvider Token provider |
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* @param array<string, mixed> $grantParams Grant parameters to use |
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* @param bool $authorizationFirst Whether to authenticate before a request instead to try without authorization |
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*/ |
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public function __construct( |
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AuthorizationService $authorizationService, |
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ClientInterface $client, |
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?AuthorizationProvider $tokenProvider = null, |
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array $grantParams = [], |
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bool $authorizationFirst = true |
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) { |
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$this->authorizationService = $authorizationService; |
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$this->client = $client; |
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$this->authorizationProvider = $tokenProvider ?? new NullProvider(); |
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$this->grantParams = array_merge( |
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$this->defaultParams, |
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$grantParams |
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); |
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$this->authenticateFirst = $authorizationFirst; |
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$this->logger = new NullLogger(); |
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} |
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/** |
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* @param LoggerInterface $logger |
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*/ |
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public function setLogger(LoggerInterface $logger): void |
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{ |
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$this->logger = $logger; |
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} |
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public function handleRequest(RequestInterface $request, callable $next, callable $first): Promise |
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{ |
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$request = $this->prepareRequest($request); |
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/** @var Promise $promise */ |
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$promise = $next($request); |
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return $promise->then(function (ResponseInterface $response) use ($next, $request): ResponseInterface { |
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return $this->postRequest($request, $response, $next); |
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}); |
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} |
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private function postRequest(OAuth2RequestInterface $request, ResponseInterface $response, callable $next): ResponseInterface |
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{ |
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if (in_array($response->getStatusCode(), [401, 403], true)) { |
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// try to authenticate or re-authenticate for a new token |
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$this->logger->debug('Received status code {status_code} from resource server', ['status_code' => $response->getStatusCode()]); |
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$request = $this->authorize($request); |
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return $next($request)->wait(); |
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} |
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return $response; |
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} |
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private function prepareRequest(RequestInterface $request): OAuth2RequestInterface |
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{ |
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if (! $request instanceof OAuth2RequestInterface) { |
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$request = new OAuth2Request($request); |
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} |
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// Merge request grant params |
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$request = $request->withGrantParams(array_merge($this->grantParams, $request->getGrantParams())); |
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if ($request->hasHeader('Authorization')) { |
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return $request; |
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} |
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$authorization = $this->authorizationProvider->getAuthorization($this->client, $request); |
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if (null !== $authorization) { |
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// if we have a provided access token, we use it for the first request |
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return $this->createRequest($request, $authorization); |
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} |
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if ($this->authenticateFirst) { |
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// if we need to authenticate before a request, we trigger the authentication |
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return $this->authorize($request); |
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} |
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return $request; |
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} |
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private function createRequest(OAuth2RequestInterface $request, string $authorization): OAuth2RequestInterface |
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{ |
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return $request->withoutHeader('Authorization') |
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->withHeader('Authorization', $authorization); |
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} |
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private function authorize(OAuth2RequestInterface $request): OAuth2RequestInterface |
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{ |
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$startTime = microtime(true); |
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$this->logger->debug('Starting authorization'); |
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$tokenSet = $this->authorizationService->grant($this->client, $request->getGrantParams()); |
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$this->logger->debug('Authorization received', ['duration' => microtime(true) - $startTime]); |
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$accessToken = $this->parseAccessToken($tokenSet); |
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$this->logger->debug('Received access token', ['access_token' => $accessToken]); |
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$authorization = 'Bearer ' . $accessToken; |
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$this->authorizationProvider->saveAuthorization($this->client, $request, $authorization, $tokenSet->getExpiresIn()); |
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return $this->createRequest($request, $authorization); |
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} |
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private function parseAccessToken(TokenSetInterface $tokenSet): string |
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{ |
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$accessToken = $tokenSet->getAccessToken(); |
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if (null === $accessToken) { |
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throw new RuntimeException('Unable to get a valid access token'); |
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} |
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$tokenType = is_string($tokenSet->getTokenType()) ? strtolower($tokenSet->getTokenType()) : null; |
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if (null !== $tokenType && 'bearer' !== $tokenType) { |
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throw new RuntimeException(sprintf('Only Bearer token are supported, provided "%s" is not supported', $tokenType)); |
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} |
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return $accessToken; |
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} |
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} |
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facile-it /
php-oauth2-http-client
