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<?php |
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/** |
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* @author Alex Bilbie <[email protected]> |
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* @copyright Copyright (c) Alex Bilbie |
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* @license http://mit-license.org/ |
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* |
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* @link https://github.com/thephpleague/oauth2-server |
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*/ |
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namespace League\OAuth2\Server\AuthorizationValidators; |
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use Lcobucci\JWT\Parser; |
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use Lcobucci\JWT\Signer\Rsa\Sha256; |
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use Lcobucci\JWT\Token; |
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use Lcobucci\JWT\ValidationData; |
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use League\OAuth2\Server\CryptKey; |
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use League\OAuth2\Server\CryptTrait; |
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use League\OAuth2\Server\Exception\OAuthServerException; |
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use League\OAuth2\Server\Repositories\AccessTokenRepositoryInterface; |
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use Psr\Http\Message\ServerRequestInterface; |
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class BearerTokenValidator implements AuthorizationValidatorInterface |
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{ |
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use CryptTrait; |
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/** |
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* @var AccessTokenRepositoryInterface |
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*/ |
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private $accessTokenRepository; |
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/** |
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* @var \League\OAuth2\Server\CryptKey |
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*/ |
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protected $publicKey; |
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/** |
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* @param AccessTokenRepositoryInterface $accessTokenRepository |
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*/ |
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public function __construct(AccessTokenRepositoryInterface $accessTokenRepository) |
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{ |
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$this->accessTokenRepository = $accessTokenRepository; |
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} |
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/** |
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* Set the public key |
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* |
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* @param \League\OAuth2\Server\CryptKey $key |
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*/ |
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public function setPublicKey(CryptKey $key) |
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{ |
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$this->publicKey = $key; |
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} |
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/** |
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* {@inheritdoc} |
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*/ |
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public function validateAuthorization(ServerRequestInterface $request) |
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{ |
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if ($request->hasHeader('authorization') === false) { |
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throw OAuthServerException::accessDenied('Missing "Authorization" header'); |
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} |
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$header = $request->getHeader('authorization'); |
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$jwt = trim(preg_replace('/^(?:\s+)?Bearer\s/', '', $header[0])); |
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try { |
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// Attempt to parse and validate the JWT |
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$token = (new Parser())->parse($jwt); |
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if ($token->verify(new Sha256(), $this->publicKey->getKeyPath()) === false) { |
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throw OAuthServerException::accessDenied('Access token could not be verified'); |
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} |
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// Ensure access token hasn't expired |
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$data = new ValidationData(); |
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$data->setCurrentTime(time()); |
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if ($token->validate($data) === false) { |
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throw OAuthServerException::accessDenied('Access token is invalid'); |
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} |
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// Check if token has been revoked |
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if ($this->accessTokenRepository->isAccessTokenRevoked($token->getClaim('jti'))) { |
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throw OAuthServerException::accessDenied('Access token has been revoked'); |
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} |
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// Return the request with additional attributes |
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return $this->appendAttributesFromToken($request, $token); |
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} catch (\InvalidArgumentException $exception) { |
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// JWT couldn't be parsed so return the request as is |
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throw OAuthServerException::accessDenied($exception->getMessage()); |
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} catch (\RuntimeException $exception) { |
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//JWR couldn't be parsed so return the request as is |
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throw OAuthServerException::accessDenied('Error while decoding to JSON'); |
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} |
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} |
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/** |
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* @param ServerRequestInterface $request |
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* @param Token $token |
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* @return ServerRequestInterface |
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*/ |
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protected function appendAttributesFromToken(ServerRequestInterface $request, Token $token) |
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{ |
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return $request |
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->withAttribute('oauth_access_token_id', $token->getClaim('jti')) |
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->withAttribute('oauth_client_id', $token->getClaim('aud')) |
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->withAttribute('oauth_user_id', $token->getClaim('sub')) |
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->withAttribute('oauth_scopes', $token->getClaim('scopes')); |
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} |
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} |
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thephpleague /
oauth2-server
