/**
* {@inheritDoc}
*/
public function createTokenResponse(ServerRequestInterface $request, Client $client = null, TokenOwnerInterface $owner = null) : ResponseInterface
{
$postParams = $request->getParsedBody();
$refreshToken = $postParams['refresh_token'] ?? null;
if (null === $refreshToken) {
throw OAuth2Exception::invalidRequest('Refresh token is missing');
}
// We can fetch the actual token, and validate it
/** @var RefreshToken $refreshToken */
$refreshToken = $this->refreshTokenService->getToken($refreshToken);
if (null === $refreshToken || $refreshToken->isExpired()) {
throw OAuth2Exception::invalidGrant('Refresh token is expired');
}
// We can now create a new access token! First, we need to make some checks on the asked scopes,
// because according to the spec, a refresh token can create an access token with an equal or lesser
// scope, but not more
$scopes = $postParams['scope'] ?? $refreshToken->getScopes();
if (!$refreshToken->matchScopes($scopes)) {
throw OAuth2Exception::invalidScope('The scope of the new access token exceeds the scope(s) of the refresh token');
}
$owner = $refreshToken->getOwner();
$accessToken = new AccessToken();
$this->populateToken($accessToken, $client, $owner, $scopes);
/** @var AccessToken $accessToken */
$accessToken = $this->accessTokenService->createToken($accessToken);
// We may want to revoke the old refresh token
if ($this->rotateRefreshTokens) {
$this->refreshTokenService->deleteToken($refreshToken);
$refreshToken = new RefreshToken();
$this->populateToken($refreshToken, $client, $owner, $scopes);
$refreshToken = $this->refreshTokenService->createToken($refreshToken);
}
// We can generate the response!
return $this->prepareTokenResponse($accessToken, $refreshToken, true);
}
/**
* @param ServerRequestInterface $request
* @return ResponseInterface
* @throws OAuth2Exception If no "token" is present
*/
public function handleRevocationRequest(ServerRequestInterface $request) : ResponseInterface
{
$postParams = $request->getParsedBody();
$token = $postParams['token'] ?? null;
$tokenHint = $postParams['token_type_hint'] ?? null;
if (null === $token || null === $tokenHint) {
throw OAuth2Exception::invalidRequest('Cannot revoke a token as the "token" and/or "token_type_hint" parameters are missing');
}
if ($tokenHint !== 'access_token' && $tokenHint !== 'refresh_token') {
throw OAuth2Exception::unsupportedTokenType(sprintf('Authorization server does not support revocation of token of type "%s"', $tokenHint));
}
if ($tokenHint === 'access_token') {
$token = $this->accessTokenService->getToken($token);
} else {
$token = $this->refreshTokenService->getToken($token);
}
$response = new Response();
// According to spec, we should return 200 if token is invalid
if (null === $token) {
return $response;
}
// Now, we must validate the client if the token was generated against a non-public client
if (null !== $token->getClient() && !$token->getClient()->isPublic()) {
$requestClient = $this->getClient($request, false);
if ($requestClient !== $token->getClient()) {
throw OAuth2Exception::invalidClient('Token was issued for another client and cannot be revoked');
}
}
try {
if ($tokenHint === 'access_token') {
$this->accessTokenService->deleteToken($token);
} else {
$this->refreshTokenService->deleteToken($token);
}
} catch (\Exception $exception) {
// According to spec (https://tools.ietf.org/html/rfc7009#section-2.2.1), we should return a server 503
// error if we cannot delete the token for any reason
$response = $response->withStatus(503, 'An error occurred while trying to delete the token');
}
return $response;
}