BackchannelAuthenticationEndpointRequestParserProcessor.java
/*
* Copyright 2021 Red Hat, Inc. and/or its affiliates
* and other contributors as indicated by the @author tags.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
*/
package org.keycloak.protocol.oidc.grants.ciba.endpoints.request;
import org.keycloak.OAuthErrorException;
import org.keycloak.common.util.StreamUtil;
import org.keycloak.connections.httpclient.HttpClientProvider;
import org.keycloak.events.EventBuilder;
import org.keycloak.models.CibaConfig;
import org.keycloak.models.ClientModel;
import org.keycloak.models.KeycloakSession;
import org.keycloak.protocol.oidc.OIDCAdvancedConfigWrapper;
import org.keycloak.protocol.oidc.OIDCLoginProtocol;
import org.keycloak.protocol.oidc.utils.RedirectUtils;
import org.keycloak.services.ErrorResponseException;
import jakarta.ws.rs.core.MultivaluedMap;
import jakarta.ws.rs.core.Response;
import java.io.InputStream;
import java.util.HashSet;
import java.util.List;
/**
* @author <a href="mailto:takashi.norimatsu.ws@hitachi.com">Takashi Norimatsu</a>
*/
public class BackchannelAuthenticationEndpointRequestParserProcessor {
public static BackchannelAuthenticationEndpointRequest parseRequest(EventBuilder event, KeycloakSession session, ClientModel client, MultivaluedMap<String, String> requestParams, CibaConfig config) {
try {
BackchannelAuthenticationEndpointRequest request = new BackchannelAuthenticationEndpointRequest();
BackchannelAuthenticationEndpointRequestBodyParser parser = new BackchannelAuthenticationEndpointRequestBodyParser(requestParams);
parser.parseRequest(request);
if (parser.getInvalidRequestMessage() != null) {
request.invalidRequestMessage = parser.getInvalidRequestMessage();
return request;
}
String requestParam = requestParams.getFirst(OIDCLoginProtocol.REQUEST_PARAM);
String requestUriParam = requestParams.getFirst(OIDCLoginProtocol.REQUEST_URI_PARAM);
if (requestParam != null && requestUriParam != null) {
throw new RuntimeException("Illegal to use both 'request' and 'request_uri' parameters together");
}
if (requestParam != null) {
new BackchannelAuthenticationEndpointSignedRequestParser(session, requestParam, client, config).parseRequest(request);
} else if (requestUriParam != null) {
// Validate "requestUriParam" with allowed requestUris
List<String> requestUris = OIDCAdvancedConfigWrapper.fromClientModel(client).getRequestUris();
String requestUri = RedirectUtils.verifyRedirectUri(session, client.getRootUrl(), requestUriParam, new HashSet<>(requestUris), false);
if (requestUri == null) {
throw new RuntimeException("Specified 'request_uri' not allowed for this client.");
}
try (InputStream is = session.getProvider(HttpClientProvider.class).get(requestUri)) {
String retrievedRequest = StreamUtil.readString(is);
new BackchannelAuthenticationEndpointSignedRequestParser(session, retrievedRequest, client, config).parseRequest(request);
}
}
return request;
} catch (Exception e) {
throw new ErrorResponseException(OAuthErrorException.INVALID_REQUEST, e.getMessage(), Response.Status.BAD_REQUEST);
}
}
}