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<?php |
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/** |
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* OAuth 2.0 Abstract grant. |
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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\Grant; |
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use League\Event\EmitterAwareTrait; |
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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\Entities\AccessTokenEntityInterface; |
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use League\OAuth2\Server\Entities\AuthCodeEntityInterface; |
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use League\OAuth2\Server\Entities\ClientEntityInterface; |
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use League\OAuth2\Server\Entities\RefreshTokenEntityInterface; |
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use League\OAuth2\Server\Entities\ScopeEntityInterface; |
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use League\OAuth2\Server\Exception\OAuthServerException; |
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use League\OAuth2\Server\Exception\UniqueTokenIdentifierConstraintViolationException; |
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use League\OAuth2\Server\Repositories\AccessTokenRepositoryInterface; |
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use League\OAuth2\Server\Repositories\AuthCodeRepositoryInterface; |
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use League\OAuth2\Server\Repositories\ClientRepositoryInterface; |
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use League\OAuth2\Server\Repositories\RefreshTokenRepositoryInterface; |
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use League\OAuth2\Server\Repositories\ScopeRepositoryInterface; |
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use League\OAuth2\Server\Repositories\UserRepositoryInterface; |
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use League\OAuth2\Server\RequestEvent; |
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use League\OAuth2\Server\RequestTypes\AuthorizationRequest; |
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use Psr\Http\Message\ServerRequestInterface; |
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/** |
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* Abstract grant class. |
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*/ |
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abstract class AbstractGrant implements GrantTypeInterface |
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{ |
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use EmitterAwareTrait, CryptTrait; |
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const SCOPE_DELIMITER_STRING = ' '; |
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const MAX_RANDOM_TOKEN_GENERATION_ATTEMPTS = 10; |
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/** |
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* @var ClientRepositoryInterface |
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*/ |
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protected $clientRepository; |
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/** |
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* @var AccessTokenRepositoryInterface |
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*/ |
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protected $accessTokenRepository; |
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/** |
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* @var ScopeRepositoryInterface |
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*/ |
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protected $scopeRepository; |
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/** |
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* @var AuthCodeRepositoryInterface |
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*/ |
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protected $authCodeRepository; |
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/** |
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* @var RefreshTokenRepositoryInterface |
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*/ |
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protected $refreshTokenRepository; |
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/** |
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* @var UserRepositoryInterface |
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*/ |
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protected $userRepository; |
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/** |
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* @var \DateInterval |
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*/ |
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protected $refreshTokenTTL; |
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/** |
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* @var \League\OAuth2\Server\CryptKey |
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*/ |
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protected $privateKey; |
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/** |
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* @string |
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*/ |
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protected $defaultScope; |
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/** |
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* @param ClientRepositoryInterface $clientRepository |
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*/ |
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public function setClientRepository(ClientRepositoryInterface $clientRepository) |
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{ |
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$this->clientRepository = $clientRepository; |
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} |
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/** |
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* @param AccessTokenRepositoryInterface $accessTokenRepository |
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*/ |
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public function setAccessTokenRepository(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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* @param ScopeRepositoryInterface $scopeRepository |
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*/ |
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public function setScopeRepository(ScopeRepositoryInterface $scopeRepository) |
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{ |
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$this->scopeRepository = $scopeRepository; |
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} |
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/** |
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* @param RefreshTokenRepositoryInterface $refreshTokenRepository |
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*/ |
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public function setRefreshTokenRepository(RefreshTokenRepositoryInterface $refreshTokenRepository) |
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{ |
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$this->refreshTokenRepository = $refreshTokenRepository; |
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} |
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/** |
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* @param AuthCodeRepositoryInterface $authCodeRepository |
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*/ |
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public function setAuthCodeRepository(AuthCodeRepositoryInterface $authCodeRepository) |
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{ |
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$this->authCodeRepository = $authCodeRepository; |
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} |
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/** |
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* @param UserRepositoryInterface $userRepository |
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*/ |
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public function setUserRepository(UserRepositoryInterface $userRepository) |
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{ |
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$this->userRepository = $userRepository; |
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} |
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/** |
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* {@inheritdoc} |
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*/ |
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public function setRefreshTokenTTL(\DateInterval $refreshTokenTTL) |
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{ |
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$this->refreshTokenTTL = $refreshTokenTTL; |
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} |
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/** |
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* Set the private 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 setPrivateKey(CryptKey $key) |
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{ |
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$this->privateKey = $key; |
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} |
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/** |
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* @param string $scope |
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*/ |
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public function setDefaultScope($scope) |
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{ |
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$this->defaultScope = $scope; |
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} |
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/** |
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* Validate the client. |
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* |
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* @param ServerRequestInterface $request |
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* |
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* @throws OAuthServerException |
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* |
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* @return ClientEntityInterface |
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*/ |
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protected function validateClient(ServerRequestInterface $request) |
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{ |
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list($basicAuthUser, $basicAuthPassword) = $this->getBasicAuthCredentials($request); |
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$clientId = $this->getRequestParameter('client_id', $request, $basicAuthUser); |
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if (is_null($clientId)) { |
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throw OAuthServerException::invalidRequest('client_id'); |
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} |
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// If the client is confidential require the client secret |
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$clientSecret = $this->getRequestParameter('client_secret', $request, $basicAuthPassword); |
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$client = $this->clientRepository->getClientEntity( |
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$clientId, |
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$this->getIdentifier(), |
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$clientSecret, |
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true |
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); |
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if ($client instanceof ClientEntityInterface === false) { |
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$this->getEmitter()->emit(new RequestEvent(RequestEvent::CLIENT_AUTHENTICATION_FAILED, $request)); |
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throw OAuthServerException::invalidClient(); |
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} |
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// If a redirect URI is provided ensure it matches what is pre-registered |
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$redirectUri = $this->getRequestParameter('redirect_uri', $request, null); |
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if ($redirectUri !== null) { |
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if ( |
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is_string($client->getRedirectUri()) |
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&& (strcmp($client->getRedirectUri(), $redirectUri) !== 0) |
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) { |
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$this->getEmitter()->emit(new RequestEvent(RequestEvent::CLIENT_AUTHENTICATION_FAILED, $request)); |
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throw OAuthServerException::invalidClient(); |
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} elseif ( |
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is_array($client->getRedirectUri()) |
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&& in_array($redirectUri, $client->getRedirectUri()) === false |
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) { |
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$this->getEmitter()->emit(new RequestEvent(RequestEvent::CLIENT_AUTHENTICATION_FAILED, $request)); |
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throw OAuthServerException::invalidClient(); |
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} |
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} |
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return $client; |
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} |
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/** |
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* Validate scopes in the request. |
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* |
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* @param string $scopes |
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* @param string $redirectUri |
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* |
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* @throws OAuthServerException |
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* |
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* @return ScopeEntityInterface[] |
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*/ |
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public function validateScopes($scopes, $redirectUri = null) |
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{ |
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$scopesList = array_filter(explode(self::SCOPE_DELIMITER_STRING, trim($scopes)), function ($scope) { |
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return !empty($scope); |
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}); |
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$validScopes = []; |
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foreach ($scopesList as $scopeItem) { |
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$scope = $this->scopeRepository->getScopeEntityByIdentifier($scopeItem); |
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if ($scope instanceof ScopeEntityInterface === false) { |
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throw OAuthServerException::invalidScope($scopeItem, $redirectUri); |
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} |
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$validScopes[] = $scope; |
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} |
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return $validScopes; |
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} |
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/** |
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* Retrieve request parameter. |
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* |
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* @param string $parameter |
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* @param ServerRequestInterface $request |
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* @param mixed $default |
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* |
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* @return null|string |
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*/ |
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protected function getRequestParameter($parameter, ServerRequestInterface $request, $default = null) |
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{ |
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$requestParameters = (array) $request->getParsedBody(); |
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return isset($requestParameters[$parameter]) ? $requestParameters[$parameter] : $default; |
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} |
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/** |
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* Retrieve HTTP Basic Auth credentials with the Authorization header |
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* of a request. First index of the returned array is the username, |
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* second is the password (so list() will work). If the header does |
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* not exist, or is otherwise an invalid HTTP Basic header, return |
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* [null, null]. |
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* |
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* @param ServerRequestInterface $request |
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* |
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* @return string[]|null[] |
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*/ |
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protected function getBasicAuthCredentials(ServerRequestInterface $request) |
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{ |
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if (!$request->hasHeader('Authorization')) { |
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return [null, null]; |
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} |
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$header = $request->getHeader('Authorization')[0]; |
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if (strpos($header, 'Basic ') !== 0) { |
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return [null, null]; |
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} |
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if (!($decoded = base64_decode(substr($header, 6)))) { |
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return [null, null]; |
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} |
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if (strpos($decoded, ':') === false) { |
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return [null, null]; // HTTP Basic header without colon isn't valid |
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} |
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return explode(':', $decoded, 2); |
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} |
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/** |
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* Retrieve query string parameter. |
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* |
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* @param string $parameter |
301
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* @param ServerRequestInterface $request |
302
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* @param mixed $default |
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* |
304
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* @return null|string |
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*/ |
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protected function getQueryStringParameter($parameter, ServerRequestInterface $request, $default = null) |
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{ |
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return isset($request->getQueryParams()[$parameter]) ? $request->getQueryParams()[$parameter] : $default; |
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} |
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311
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/** |
312
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* Retrieve cookie parameter. |
313
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* |
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* @param string $parameter |
315
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* @param ServerRequestInterface $request |
316
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* @param mixed $default |
317
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* |
318
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* @return null|string |
319
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*/ |
320
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protected function getCookieParameter($parameter, ServerRequestInterface $request, $default = null) |
321
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{ |
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return isset($request->getCookieParams()[$parameter]) ? $request->getCookieParams()[$parameter] : $default; |
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} |
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325
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/** |
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* Retrieve server parameter. |
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* |
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* @param string $parameter |
329
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* @param ServerRequestInterface $request |
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* @param mixed $default |
331
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* |
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* @return null|string |
333
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*/ |
334
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protected function getServerParameter($parameter, ServerRequestInterface $request, $default = null) |
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{ |
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return isset($request->getServerParams()[$parameter]) ? $request->getServerParams()[$parameter] : $default; |
337
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} |
338
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339
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/** |
340
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* Issue an access token. |
341
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* |
342
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* @param \DateInterval $accessTokenTTL |
343
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* @param ClientEntityInterface $client |
344
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* @param string $userIdentifier |
345
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* @param ScopeEntityInterface[] $scopes |
346
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* |
347
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* @throws OAuthServerException |
348
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* @throws UniqueTokenIdentifierConstraintViolationException |
349
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* |
350
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* @return AccessTokenEntityInterface |
351
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*/ |
352
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protected function issueAccessToken( |
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\DateInterval $accessTokenTTL, |
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ClientEntityInterface $client, |
355
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$userIdentifier, |
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array $scopes = [] |
357
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) { |
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$maxGenerationAttempts = self::MAX_RANDOM_TOKEN_GENERATION_ATTEMPTS; |
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$accessToken = $this->accessTokenRepository->getNewToken($client, $scopes, $userIdentifier); |
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$accessToken->setClient($client); |
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$accessToken->setUserIdentifier($userIdentifier); |
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$accessToken->setExpiryDateTime((new \DateTime())->add($accessTokenTTL)); |
364
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365
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foreach ($scopes as $scope) { |
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$accessToken->addScope($scope); |
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} |
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369
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while ($maxGenerationAttempts-- > 0) { |
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$accessToken->setIdentifier($this->generateUniqueIdentifier()); |
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try { |
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$this->accessTokenRepository->persistNewAccessToken($accessToken); |
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374
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return $accessToken; |
375
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} catch (UniqueTokenIdentifierConstraintViolationException $e) { |
376
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if ($maxGenerationAttempts === 0) { |
377
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throw $e; |
378
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} |
379
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} |
380
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} |
381
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} |
382
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|
383
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/** |
384
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* Issue an auth code. |
385
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* |
386
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|
|
* @param \DateInterval $authCodeTTL |
387
|
|
|
* @param ClientEntityInterface $client |
388
|
|
|
* @param string $userIdentifier |
389
|
|
|
* @param string $redirectUri |
390
|
|
|
* @param ScopeEntityInterface[] $scopes |
391
|
|
|
* |
392
|
|
|
* @throws OAuthServerException |
393
|
|
|
* @throws UniqueTokenIdentifierConstraintViolationException |
394
|
|
|
* |
395
|
|
|
* @return AuthCodeEntityInterface |
396
|
|
|
*/ |
397
|
|
|
protected function issueAuthCode( |
398
|
|
|
\DateInterval $authCodeTTL, |
399
|
|
|
ClientEntityInterface $client, |
400
|
|
|
$userIdentifier, |
401
|
|
|
$redirectUri, |
402
|
|
|
array $scopes = [] |
403
|
|
|
) { |
404
|
|
|
$maxGenerationAttempts = self::MAX_RANDOM_TOKEN_GENERATION_ATTEMPTS; |
405
|
|
|
|
406
|
|
|
$authCode = $this->authCodeRepository->getNewAuthCode(); |
407
|
|
|
$authCode->setExpiryDateTime((new \DateTime())->add($authCodeTTL)); |
408
|
|
|
$authCode->setClient($client); |
409
|
|
|
$authCode->setUserIdentifier($userIdentifier); |
410
|
|
|
$authCode->setRedirectUri($redirectUri); |
411
|
|
|
|
412
|
|
|
foreach ($scopes as $scope) { |
413
|
|
|
$authCode->addScope($scope); |
414
|
|
|
} |
415
|
|
|
|
416
|
|
|
while ($maxGenerationAttempts-- > 0) { |
417
|
|
|
$authCode->setIdentifier($this->generateUniqueIdentifier()); |
418
|
|
|
try { |
419
|
|
|
$this->authCodeRepository->persistNewAuthCode($authCode); |
420
|
|
|
|
421
|
|
|
return $authCode; |
422
|
|
|
} catch (UniqueTokenIdentifierConstraintViolationException $e) { |
423
|
|
|
if ($maxGenerationAttempts === 0) { |
424
|
|
|
throw $e; |
425
|
|
|
} |
426
|
|
|
} |
427
|
|
|
} |
428
|
|
|
} |
429
|
|
|
|
430
|
|
|
/** |
431
|
|
|
* @param AccessTokenEntityInterface $accessToken |
432
|
|
|
* |
433
|
|
|
* @throws OAuthServerException |
434
|
|
|
* @throws UniqueTokenIdentifierConstraintViolationException |
435
|
|
|
* |
436
|
|
|
* @return RefreshTokenEntityInterface |
437
|
|
|
*/ |
438
|
|
|
protected function issueRefreshToken(AccessTokenEntityInterface $accessToken) |
439
|
|
|
{ |
440
|
|
|
$maxGenerationAttempts = self::MAX_RANDOM_TOKEN_GENERATION_ATTEMPTS; |
441
|
|
|
|
442
|
|
|
$refreshToken = $this->refreshTokenRepository->getNewRefreshToken(); |
443
|
|
|
$refreshToken->setExpiryDateTime((new \DateTime())->add($this->refreshTokenTTL)); |
444
|
|
|
$refreshToken->setAccessToken($accessToken); |
445
|
|
|
|
446
|
|
|
while ($maxGenerationAttempts-- > 0) { |
447
|
|
|
$refreshToken->setIdentifier($this->generateUniqueIdentifier()); |
448
|
|
|
try { |
449
|
|
|
$this->refreshTokenRepository->persistNewRefreshToken($refreshToken); |
450
|
|
|
|
451
|
|
|
return $refreshToken; |
452
|
|
|
} catch (UniqueTokenIdentifierConstraintViolationException $e) { |
453
|
|
|
if ($maxGenerationAttempts === 0) { |
454
|
|
|
throw $e; |
455
|
|
|
} |
456
|
|
|
} |
457
|
|
|
} |
458
|
|
|
} |
459
|
|
|
|
460
|
|
|
/** |
461
|
|
|
* Generate a new unique identifier. |
462
|
|
|
* |
463
|
|
|
* @param int $length |
464
|
|
|
* |
465
|
|
|
* @throws OAuthServerException |
466
|
|
|
* |
467
|
|
|
* @return string |
468
|
|
|
*/ |
469
|
|
|
protected function generateUniqueIdentifier($length = 40) |
470
|
|
|
{ |
471
|
|
|
try { |
472
|
|
|
return bin2hex(random_bytes($length)); |
473
|
|
|
// @codeCoverageIgnoreStart |
474
|
|
|
} catch (\TypeError $e) { |
475
|
|
|
throw OAuthServerException::serverError('An unexpected error has occurred'); |
476
|
|
|
} catch (\Error $e) { |
477
|
|
|
throw OAuthServerException::serverError('An unexpected error has occurred'); |
478
|
|
|
} catch (\Exception $e) { |
479
|
|
|
// If you get this message, the CSPRNG failed hard. |
480
|
|
|
throw OAuthServerException::serverError('Could not generate a random string'); |
481
|
|
|
} |
482
|
|
|
// @codeCoverageIgnoreEnd |
483
|
|
|
} |
484
|
|
|
|
485
|
|
|
/** |
486
|
|
|
* {@inheritdoc} |
487
|
|
|
*/ |
488
|
|
|
public function canRespondToAccessTokenRequest(ServerRequestInterface $request) |
489
|
|
|
{ |
490
|
|
|
$requestParameters = (array) $request->getParsedBody(); |
491
|
|
|
|
492
|
|
|
return ( |
493
|
|
|
array_key_exists('grant_type', $requestParameters) |
494
|
|
|
&& $requestParameters['grant_type'] === $this->getIdentifier() |
495
|
|
|
); |
496
|
|
|
} |
497
|
|
|
|
498
|
|
|
/** |
499
|
|
|
* {@inheritdoc} |
500
|
|
|
*/ |
501
|
|
|
public function canRespondToAuthorizationRequest(ServerRequestInterface $request) |
502
|
|
|
{ |
503
|
|
|
return false; |
504
|
|
|
} |
505
|
|
|
|
506
|
|
|
/** |
507
|
|
|
* {@inheritdoc} |
508
|
|
|
*/ |
509
|
|
|
public function validateAuthorizationRequest(ServerRequestInterface $request) |
510
|
|
|
{ |
511
|
|
|
throw new \LogicException('This grant cannot validate an authorization request'); |
512
|
|
|
} |
513
|
|
|
|
514
|
|
|
/** |
515
|
|
|
* {@inheritdoc} |
516
|
|
|
*/ |
517
|
|
|
public function completeAuthorizationRequest(AuthorizationRequest $authorizationRequest) |
518
|
|
|
{ |
519
|
|
|
throw new \LogicException('This grant cannot complete an authorization request'); |
520
|
|
|
} |
521
|
|
|
} |
522
|
|
|
|