com.mongodb.internal.connection.SslHelper Maven / Gradle / Ivy
/*
* Copyright 2008-present MongoDB, Inc.
*
* 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.mongodb.internal.connection;
import javax.net.ssl.SSLParameters;
import java.lang.reflect.InvocationTargetException;
/**
* This class should not be considered a part of the public API.
*/
public final class SslHelper {
// this will end up as null if running on a release prior to Java 8, in which case SNI will be silently disabled
private static final SniSslHelper SNI_SSL_HELPER;
static {
SniSslHelper sniSslHelper;
try {
sniSslHelper = (SniSslHelper) Class.forName("com.mongodb.internal.connection.Java8SniSslHelper")
.getDeclaredConstructor().newInstance();
} catch (ClassNotFoundException e) {
// this is unexpected as it means the Java8SniSslHelper class itself is not found
throw new ExceptionInInitializerError(e);
} catch (InstantiationException e) {
// this is unexpected as it means Java8SniSslHelper can't be instantiated
throw new ExceptionInInitializerError(e);
} catch (IllegalAccessException e) {
// this is unexpected as it means Java8SniSslHelper's constructor isn't accessible
throw new ExceptionInInitializerError(e);
} catch (NoSuchMethodException e) {
// this is unexpected as it means Java8SniSslHelper has no no-args constructor
throw new ExceptionInInitializerError(e);
} catch (InvocationTargetException e) {
// this is unexpected as it means Java8SniSslHelper's constructor threw an exception
throw new ExceptionInInitializerError(e.getTargetException());
} catch (LinkageError t) {
// this is expected if running on a release prior to Java 8. We want to just fail silently here
sniSslHelper = null;
}
SNI_SSL_HELPER = sniSslHelper;
}
/**
* Enable HTTP endpoint verification on the given SSL parameters.
*
* @param sslParameters The original SSL parameters
*/
public static void enableHostNameVerification(final SSLParameters sslParameters) {
sslParameters.setEndpointIdentificationAlgorithm("HTTPS");
}
/**
* Enable SNI if running on Java 8 or later. Otherwise fail silently to enable SNI.
*
* @param host the server host
* @param sslParameters the SSL parameters
*/
public static void enableSni(final String host, final SSLParameters sslParameters) {
if (SNI_SSL_HELPER != null) {
SNI_SSL_HELPER.enableSni(host, sslParameters);
}
}
private SslHelper() {
}
}