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<?php |
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/** |
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* @author Boris Guéry <[email protected]> |
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*/ |
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namespace Bgy\OAuth2; |
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use Bgy\OAuth2\GrantType\GrantDecision; |
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use Bgy\OAuth2\GrantType\GrantError; |
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use Bgy\OAuth2\GrantType\GrantType; |
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class AuthorizationServer |
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{ |
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private $configuration; |
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private $clientAuthenticator; |
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public function __construct(AuthorizationServerConfiguration $configuration) |
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{ |
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$this->configuration = $configuration; |
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$this->clientAuthenticator = new ClientAuthenticator( |
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$this->configuration->getClientStorage() |
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); |
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} |
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/** |
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* @param TokenRequestAttempt $tokenRequestAttempt |
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* @return FailedTokenRequestAttemptResult|SuccessfulTokenRequestAttemptResult |
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*/ |
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public function requestAccessToken(TokenRequestAttempt $tokenRequestAttempt) |
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{ |
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if (null === $this->getGrantTypeByIdentifier($tokenRequestAttempt->getGrantType())) { |
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return $this->buildTokenAttemptResult($tokenRequestAttempt, GrantDecision::denied(GrantError::invalidGrant('Unknown grant type'))); |
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} |
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if ($this->configuration->alwaysRequireAClient()) { |
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if (false === $tokenRequestAttempt->getInputData()->getClientId()) { |
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return $this->buildTokenAttemptResult($tokenRequestAttempt, GrantDecision::denied(GrantError::invalidRequest('missing client_id'))); |
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} |
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if (false === $this->clientAuthenticator->isClientValid( |
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$tokenRequestAttempt->getInputData()->getClientId(), |
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$tokenRequestAttempt->getInputData()->getClientSecret() |
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)) { |
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return $this->buildTokenAttemptResult($tokenRequestAttempt, GrantDecision::denied(GrantError::accessDenied('invalid client credentials'))); |
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} |
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$client = $this->configuration->getClientStorage() |
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->findById($tokenRequestAttempt->getInputData()->getClientId()) |
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; |
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if (!in_array($tokenRequestAttempt->getGrantType(), $client->getAllowedGrantTypes())) { |
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return $this->buildTokenAttemptResult($tokenRequestAttempt, GrantDecision::denied( |
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GrantError::invalidGrant( |
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sprintf( |
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'This client doesn\'t support the following grant type: "%s"', |
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$tokenRequestAttempt->getGrantType() |
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) |
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) |
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)); |
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} |
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return $this->buildTokenAttemptResult($tokenRequestAttempt, $this->getGrantTypeByIdentifier($tokenRequestAttempt->getGrantType()) |
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->grant($tokenRequestAttempt) |
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); |
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} |
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return $this->buildTokenAttemptResult($tokenRequestAttempt, GrantDecision::denied(GrantError::serverError('unknown error'))); |
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} |
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private function buildTokenAttemptResult(TokenRequestAttempt $tokenRequestAttempt, GrantDecision $grantDecision) |
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{ |
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if ($grantDecision->isAllowed()) { |
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$token = $this->configuration->getTokenGenerator()->generate( |
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['length' => $this->configuration->getAccessTokenLength()] |
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); |
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$accessToken = new AccessToken( |
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$token, |
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$this->configuration->getAccessTokenTTL(), |
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$tokenRequestAttempt->getInputData()->getClientId(), |
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$grantDecision->getResourceOwnerId(), |
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[] |
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); |
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$this->configuration->getAccessTokenStorage()->save($accessToken); |
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$refreshToken = null; |
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if ($this->configuration->alwaysGenerateARefreshToken()) { |
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$token = $this->configuration->getTokenGenerator()->generate( |
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['length' => $this->configuration->getAccessTokenLength()] |
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); |
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$refreshToken = new RefreshToken($token); |
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$this->configuration->getRefreshTokenStorage()->save($refreshToken); |
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} |
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$result = new SuccessfulTokenRequestAttemptResult($grantDecision, $accessToken, $refreshToken); |
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} else { |
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$result = new FailedTokenRequestAttemptResult($grantDecision); |
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} |
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return $result; |
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} |
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/** |
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* @param $identifier |
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* @return GrantType |
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*/ |
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private function getGrantTypeByIdentifier($identifier) |
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{ |
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if (!isset($this->configuration->getGrantTypeExtensions()[$identifier])) { |
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return null; |
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} |
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return $this->configuration->getGrantTypeExtensions()[$identifier]; |
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} |
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} |
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borisguery /
oauth2-server
