/*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership.
* The ASF licenses this file to You 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.apache.nifi.cluster.coordination.http.endpoints;
import org.apache.nifi.cluster.manager.NodeResponse;
import org.apache.nifi.cluster.protocol.NodeIdentifier;
import org.apache.nifi.web.api.dto.PermissionsDTO;
import org.apache.nifi.web.api.entity.CurrentUserEntity;
import java.net.URI;
import java.util.Map;
import java.util.Set;
import java.util.regex.Pattern;
public class CurrentUserEndpointMerger extends AbstractSingleEntityEndpoint<CurrentUserEntity> {
public static final Pattern CURRENT_USER_URI_PATTERN = Pattern.compile("/nifi-api/flow/current-user");
@Override
public boolean canHandle(URI uri, String method) {
return "GET".equalsIgnoreCase(method) && CURRENT_USER_URI_PATTERN.matcher(uri.getPath()).matches();
}
@Override
protected Class<CurrentUserEntity> getEntityClass() {
return CurrentUserEntity.class;
}
@Override
protected void mergeResponses(final CurrentUserEntity clientEntity, final Map<NodeIdentifier, CurrentUserEntity> entityMap,
final Set<NodeResponse> successfulResponses, final Set<NodeResponse> problematicResponses) {
for (final Map.Entry<NodeIdentifier, CurrentUserEntity> entry : entityMap.entrySet()) {
final CurrentUserEntity entity = entry.getValue();
if (entity != clientEntity) {
mergePermissions(clientEntity.getControllerPermissions(), entity.getControllerPermissions());
mergePermissions(clientEntity.getCountersPermissions(), entity.getCountersPermissions());
mergePermissions(clientEntity.getPoliciesPermissions(), entity.getPoliciesPermissions());
mergePermissions(clientEntity.getProvenancePermissions(), entity.getProvenancePermissions());
mergePermissions(clientEntity.getTenantsPermissions(), entity.getTenantsPermissions());
}
}
}
private void mergePermissions(PermissionsDTO clientPermissions, PermissionsDTO permissions) {
clientPermissions.setCanRead(clientPermissions.getCanRead() && permissions.getCanRead());
clientPermissions.setCanWrite(clientPermissions.getCanWrite() && permissions.getCanWrite());
}
}