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/*
* SPDX-License-Identifier: Apache-2.0
*
* The OpenSearch Contributors require contributions made to
* this file be licensed under the Apache-2.0 license or a
* compatible open source license.
*/
/*
* Licensed to Elasticsearch under one or more contributor
* license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright
* ownership. Elasticsearch 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.
*/
/*
* Modifications Copyright OpenSearch Contributors. See
* GitHub history for details.
*/
package org.opensearch.repositories;
import org.apache.logging.log4j.LogManager;
import org.apache.logging.log4j.Logger;
import org.apache.logging.log4j.message.ParameterizedMessage;
import org.opensearch.cluster.node.DiscoveryNode;
import org.opensearch.cluster.node.DiscoveryNodes;
import org.opensearch.cluster.service.ClusterService;
import org.opensearch.core.action.ActionListener;
import org.opensearch.core.common.io.stream.StreamInput;
import org.opensearch.core.common.io.stream.StreamOutput;
import org.opensearch.core.transport.TransportResponse;
import org.opensearch.tasks.Task;
import org.opensearch.threadpool.ThreadPool;
import org.opensearch.transport.EmptyTransportResponseHandler;
import org.opensearch.transport.TransportChannel;
import org.opensearch.transport.TransportException;
import org.opensearch.transport.TransportRequest;
import org.opensearch.transport.TransportRequestHandler;
import org.opensearch.transport.TransportService;
import java.io.IOException;
import java.util.ArrayList;
import java.util.Collection;
import java.util.List;
import java.util.concurrent.CopyOnWriteArrayList;
import java.util.concurrent.atomic.AtomicInteger;
/**
* Action to verify a node repository
*
* @opensearch.internal
*/
public class VerifyNodeRepositoryAction {
private static final Logger logger = LogManager.getLogger(VerifyNodeRepositoryAction.class);
public static final String ACTION_NAME = "internal:admin/repository/verify";
private final TransportService transportService;
private final ClusterService clusterService;
private final RepositoriesService repositoriesService;
public VerifyNodeRepositoryAction(
TransportService transportService,
ClusterService clusterService,
RepositoriesService repositoriesService
) {
this.transportService = transportService;
this.clusterService = clusterService;
this.repositoriesService = repositoriesService;
transportService.registerRequestHandler(
ACTION_NAME,
ThreadPool.Names.SNAPSHOT,
VerifyNodeRepositoryRequest::new,
new VerifyNodeRepositoryRequestHandler()
);
}
public void verify(String repository, String verificationToken, final ActionListener> listener) {
final DiscoveryNodes discoNodes = clusterService.state().nodes();
final DiscoveryNode localNode = discoNodes.getLocalNode();
final Collection masterAndDataNodes = discoNodes.getClusterManagerAndDataNodes().values();
final List nodes = new ArrayList<>();
for (final DiscoveryNode node : masterAndDataNodes) {
if (RepositoriesService.isDedicatedVotingOnlyNode(node.getRoles()) == false) {
nodes.add(node);
}
}
final CopyOnWriteArrayList errors = new CopyOnWriteArrayList<>();
final AtomicInteger counter = new AtomicInteger(nodes.size());
for (final DiscoveryNode node : nodes) {
if (node.equals(localNode)) {
try {
doVerify(repository, verificationToken, localNode);
} catch (Exception e) {
logger.warn(() -> new ParameterizedMessage("[{}] failed to verify repository", repository), e);
errors.add(new VerificationFailure(node.getId(), e));
}
if (counter.decrementAndGet() == 0) {
finishVerification(repository, listener, nodes, errors);
}
} else {
transportService.sendRequest(
node,
ACTION_NAME,
new VerifyNodeRepositoryRequest(repository, verificationToken),
new EmptyTransportResponseHandler(ThreadPool.Names.SAME) {
@Override
public void handleResponse(TransportResponse.Empty response) {
if (counter.decrementAndGet() == 0) {
finishVerification(repository, listener, nodes, errors);
}
}
@Override
public void handleException(TransportException exp) {
errors.add(new VerificationFailure(node.getId(), exp));
if (counter.decrementAndGet() == 0) {
finishVerification(repository, listener, nodes, errors);
}
}
}
);
}
}
}
private static void finishVerification(
String repositoryName,
ActionListener> listener,
List nodes,
CopyOnWriteArrayList errors
) {
if (errors.isEmpty() == false) {
listener.onFailure(new RepositoryVerificationException(repositoryName, errors.toString()));
} else {
listener.onResponse(nodes);
}
}
private void doVerify(String repositoryName, String verificationToken, DiscoveryNode localNode) {
Repository repository = repositoriesService.repository(repositoryName);
repository.verify(verificationToken, localNode);
}
/**
* Request to verify a node repository.
*
* @opensearch.internal
*/
public static class VerifyNodeRepositoryRequest extends TransportRequest {
private String repository;
private String verificationToken;
public VerifyNodeRepositoryRequest(StreamInput in) throws IOException {
super(in);
repository = in.readString();
verificationToken = in.readString();
}
VerifyNodeRepositoryRequest(String repository, String verificationToken) {
this.repository = repository;
this.verificationToken = verificationToken;
}
@Override
public void writeTo(StreamOutput out) throws IOException {
super.writeTo(out);
out.writeString(repository);
out.writeString(verificationToken);
}
}
class VerifyNodeRepositoryRequestHandler implements TransportRequestHandler {
@Override
public void messageReceived(VerifyNodeRepositoryRequest request, TransportChannel channel, Task task) throws Exception {
DiscoveryNode localNode = clusterService.state().nodes().getLocalNode();
try {
doVerify(request.repository, request.verificationToken, localNode);
} catch (Exception ex) {
logger.warn(() -> new ParameterizedMessage("[{}] failed to verify repository", request.repository), ex);
throw ex;
}
channel.sendResponse(TransportResponse.Empty.INSTANCE);
}
}
}