public void validateErrorResponse(OAuthClientResponse response) throws OAuthProblemException {
String error = response.getParam(OAuthError.OAUTH_ERROR);
if (!OAuthUtils.isEmpty(error)) {
String errorDesc = response.getParam(OAuthError.OAUTH_ERROR_DESCRIPTION);
String errorUri = response.getParam(OAuthError.OAUTH_ERROR_URI);
String state = response.getParam(OAuth.OAUTH_STATE);
throw OAuthProblemException.error(error).description(errorDesc).uri(errorUri).state(state);
}
}
@Override
public void validateRequiredParameters(HttpServletRequest request) throws OAuthProblemException {
String[] tokens = getQueryParameterValues(request, OAuth.OAUTH_BEARER_TOKEN);
if (OAuthUtils.hasEmptyValues(tokens)) {
tokens = getQueryParameterValues(request, OAuth.OAUTH_TOKEN);
if (OAuthUtils.hasEmptyValues(tokens)) {
throw OAuthProblemException.error(null, "Missing OAuth token.");
}
}
if (tokens != null && tokens.length > 1) {
throw OAuthProblemException.error(
OAuthError.TokenResponse.INVALID_REQUEST, "Multiple tokens attached.");
}
String oauthVersionDiff =
ResourceServer.getQueryParameterValue(request, OAuth.OAUTH_VERSION_DIFFER);
if (!OAuthUtils.isEmpty(oauthVersionDiff)) {
throw OAuthProblemException.error(
OAuthError.TokenResponse.INVALID_REQUEST, "Incorrect OAuth version. Found OAuth V1.0.");
}
}