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The Service Provider Interfaces for developing HiveMQ plugins.
/*
* Copyright 2015 dc-square GmbH
*
* 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 com.hivemq.spi.util;
import com.google.common.collect.ImmutableList;
import com.hivemq.spi.annotations.ReadOnly;
import javax.net.ssl.SSLContext;
import javax.net.ssl.SSLEngine;
import java.security.KeyManagementException;
import java.security.NoSuchAlgorithmException;
import java.util.List;
/**
* A utility class which allows to find out information about
* the default SSL Engine from the JVM
*
* @author Christoph Schäbel
* @author Dominik Obermaier
*/
public class DefaultSslEngineUtil {
/**
* Returns a list of all supported Cipher Suites of the JVM.
*
* @return a list of all supported cipher suites of the JVM
* @throws SslException
*/
@ReadOnly
public List getSupportedCipherSuites() throws SslException {
try {
final SSLEngine engine = getDefaultSslEngine();
return ImmutableList.copyOf(engine.getSupportedCipherSuites());
} catch (NoSuchAlgorithmException | KeyManagementException e) {
throw new SslException("Not able to get list of supported cipher suites from JVM", e);
}
}
/**
* Returns a list of all supported protocols by the JVM.
*
* @return a list of all supported protocols by the JVM
* @throws SslException
*/
@ReadOnly
public List getSupportedProtocols() throws SslException {
try {
final SSLEngine engine = getDefaultSslEngine();
return ImmutableList.copyOf(engine.getSupportedProtocols());
} catch (NoSuchAlgorithmException | KeyManagementException e) {
throw new SslException("Not able to get list of supported protocols from JVM", e);
}
}
/**
* Returns a list of all enabled protocols of the JVM
*
* @return a list of all enabled protocls of the JVM
* @throws SslException
*/
@ReadOnly
public List getEnabledProtocols() throws SslException {
try {
final SSLEngine engine = getDefaultSslEngine();
return ImmutableList.copyOf(engine.getEnabledProtocols());
} catch (NoSuchAlgorithmException | KeyManagementException e) {
throw new SslException("Not able to get list of enabled protocols from JVM", e);
}
}
/**
* Returns a list of all enabled cipher suites of the JVM
*
* @return a list of all enabled cipher suites of the JVM
* @throws SslException
*/
@ReadOnly
public List getEnabledCipherSuites() throws SslException {
try {
final SSLEngine engine = getDefaultSslEngine();
return ImmutableList.copyOf(engine.getEnabledCipherSuites());
} catch (NoSuchAlgorithmException | KeyManagementException e) {
throw new SslException("Not able to get list of enabled cipher suites from JVM", e);
}
}
private SSLEngine getDefaultSslEngine() throws NoSuchAlgorithmException, KeyManagementException {
final SSLContext context = SSLContext.getInstance("TLS");
context.init(null, null, null);
return context.createSSLEngine();
}
}