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| <?php | |
| /** | |
| * OAuth 2.0 Refresh token grant | |
| * | |
| * @package league/oauth2-server | |
| * @author Alex Bilbie <hello@alexbilbie.com> | |
| * @copyright Copyright (c) Alex Bilbie | |
| * @license http://mit-license.org/ | |
| * @link https://github.com/thephpleague/oauth2-server | |
| */ | |
| namespace League\OAuth2\Server\Grant; | |
| use League\OAuth2\Server\Entity\AccessTokenEntity; | |
| use League\OAuth2\Server\Entity\ClientEntity; | |
| use League\OAuth2\Server\Entity\RefreshTokenEntity; | |
| use League\OAuth2\Server\Event; | |
| use League\OAuth2\Server\Exception; | |
| use League\OAuth2\Server\Util\SecureKey; | |
| /** | |
| * Referesh token grant | |
| */ | |
| class RefreshTokenGrant extends AbstractGrant | |
| { | |
| /** | |
| * {@inheritdoc} | |
| */ | |
| protected $identifier = 'refresh_token'; | |
| /** | |
| * Refresh token TTL (default = 604800 | 1 week) | |
| * | |
| * @var integer | |
| */ | |
| protected $refreshTokenTTL = 604800; | |
| /** | |
| * Rotate token (default = true) | |
| * | |
| * @var integer | |
| */ | |
| protected $refreshTokenRotate = true; | |
| /** | |
| * Set the TTL of the refresh token | |
| * | |
| * @param int $refreshTokenTTL | |
| * | |
| * @return void | |
| */ | |
| public function setRefreshTokenTTL($refreshTokenTTL) | |
| { | |
| $this->refreshTokenTTL = $refreshTokenTTL; | |
| } | |
| /** | |
| * Get the TTL of the refresh token | |
| * | |
| * @return int | |
| */ | |
| public function getRefreshTokenTTL() | |
| { | |
| return $this->refreshTokenTTL; | |
| } | |
| /** | |
| * Set the rotation boolean of the refresh token | |
| * @param bool $refreshTokenRotate | |
| */ | |
| public function setRefreshTokenRotation($refreshTokenRotate = true) | |
| { | |
| $this->refreshTokenRotate = $refreshTokenRotate; | |
| } | |
| /** | |
| * Get rotation boolean of the refresh token | |
| * | |
| * @return bool | |
| */ | |
| public function shouldRotateRefreshTokens() | |
| { | |
| return $this->refreshTokenRotate; | |
| } | |
| /** | |
| * {@inheritdoc} | |
| */ | |
| public function completeFlow() | |
| { | |
| $clientId = $this->server->getRequest()->request->get('client_id', $this->server->getRequest()->getUser()); | |
| if (is_null($clientId)) { | |
| throw new Exception\InvalidRequestException('client_id'); | |
| } | |
| $clientSecret = $this->server->getRequest()->request->get('client_secret', | |
| $this->server->getRequest()->getPassword()); | |
| if (is_null($clientSecret)) { | |
| throw new Exception\InvalidRequestException('client_secret'); | |
| } | |
| // Validate client ID and client secret | |
| $client = $this->server->getClientStorage()->get( | |
| $clientId, | |
| $clientSecret, | |
| null, | |
| $this->getIdentifier() | |
| ); | |
| if (($client instanceof ClientEntity) === false) { | |
| $this->server->getEventEmitter()->emit(new Event\ClientAuthenticationFailedEvent($this->server->getRequest())); | |
| throw new Exception\InvalidClientException(); | |
| } | |
| $oldRefreshTokenParam = $this->server->getRequest()->request->get('refresh_token', null); | |
| if ($oldRefreshTokenParam === null) { | |
| throw new Exception\InvalidRequestException('refresh_token'); | |
| } | |
| // Validate refresh token | |
| $oldRefreshToken = $this->server->getRefreshTokenStorage()->get($oldRefreshTokenParam); | |
| if (($oldRefreshToken instanceof RefreshTokenEntity) === false) { | |
| throw new Exception\InvalidRefreshException(); | |
| } | |
| // Ensure the old refresh token hasn't expired | |
| if ($oldRefreshToken->isExpired() === true) { | |
| throw new Exception\InvalidRefreshException(); | |
| } | |
| $oldAccessToken = $oldRefreshToken->getAccessToken(); | |
| // Get the scopes for the original session | |
| $session = $oldAccessToken->getSession(); | |
| $scopes = $this->formatScopes($session->getScopes()); | |
| // Get and validate any requested scopes | |
| $requestedScopesString = $this->server->getRequest()->request->get('scope', ''); | |
| $requestedScopes = $this->validateScopes($requestedScopesString, $client); | |
| // If no new scopes are requested then give the access token the original session scopes | |
| if (count($requestedScopes) === 0) { | |
| $newScopes = $scopes; | |
| } else { | |
| // The OAuth spec says that a refreshed access token can have the original scopes or fewer so ensure | |
| // the request doesn't include any new scopes | |
| foreach ($requestedScopes as $requestedScope) { | |
| if (!isset($scopes[$requestedScope->getId()])) { | |
| throw new Exception\InvalidScopeException($requestedScope->getId()); | |
| } | |
| } | |
| $newScopes = $requestedScopes; | |
| } | |
| // Generate a new access token and assign it the correct sessions | |
| $newAccessToken = new AccessTokenEntity($this->server); | |
| $newAccessToken->setId(SecureKey::generate()); | |
| $newAccessToken->setExpireTime($this->getAccessTokenTTL() + time()); | |
| $newAccessToken->setSession($session); | |
| foreach ($newScopes as $newScope) { | |
| $newAccessToken->associateScope($newScope); | |
| } | |
| // Expire the old token and save the new one | |
| $oldAccessToken->expire(); | |
| $newAccessToken->save(); | |
| $this->server->getTokenType()->setSession($session); | |
| $this->server->getTokenType()->setParam('access_token', $newAccessToken->getId()); | |
| $this->server->getTokenType()->setParam('expires_in', $this->getAccessTokenTTL()); | |
| if ($this->shouldRotateRefreshTokens()) { | |
| // Expire the old refresh token | |
| $oldRefreshToken->expire(); | |
| // Generate a new refresh token | |
| $newRefreshToken = new RefreshTokenEntity($this->server); | |
| $newRefreshToken->setId(SecureKey::generate()); | |
| $newRefreshToken->setExpireTime($this->getRefreshTokenTTL() + time()); | |
| $newRefreshToken->setAccessToken($newAccessToken); | |
| $newRefreshToken->save(); | |
| $this->server->getTokenType()->setParam('refresh_token', $newRefreshToken->getId()); | |
| } else { | |
| $this->server->getTokenType()->setParam('refresh_token', $oldRefreshToken->getId()); | |
| } | |
| return $this->server->getTokenType()->generateResponse(); | |
| } | |
| } |