/*
* Copyright (C) 2016 Square, 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 keywhiz.auth.ldap;
import java.io.IOException;
import java.net.InetAddress;
import java.net.Socket;
import javax.net.SocketFactory;
import javax.net.ssl.SSLParameters;
import javax.net.ssl.SSLSocket;
import javax.net.ssl.SSLSocketFactory;
/** This class wraps an SSLSocketFactory and sets the Endpoint Identification algorithm to
* LDAP. This is important for connecting to TLS through a load balancer, where we may see
* different certs, triggering Java8's 3shake mitigation */
final class EndpointIdentificationSocketFactory extends SocketFactory {
private final SSLSocketFactory factory;
EndpointIdentificationSocketFactory(SSLSocketFactory factory) {
this.factory = factory;
}
private Socket prepareSocket(Socket socket) {
SSLSocket sslSocket = (SSLSocket)socket;
SSLParameters parameters = sslSocket.getSSLParameters();
parameters.setEndpointIdentificationAlgorithm("LDAPS");
sslSocket.setSSLParameters(parameters);
return sslSocket;
}
@Override
public Socket createSocket(String host, int port) throws IOException {
return prepareSocket(factory.createSocket(host, port));
}
@Override
public Socket createSocket(String host, int port, InetAddress localAddress, int localPort)
throws IOException {
return prepareSocket(factory.createSocket(host, port, localAddress, localPort));
}
@Override
public Socket createSocket(InetAddress inetAddress, int port) throws IOException {
return prepareSocket(factory.createSocket(inetAddress, port));
}
@Override
public Socket createSocket(InetAddress inetAddress, int port, InetAddress localAddress, int localPort)
throws IOException {
return prepareSocket(factory.createSocket(inetAddress, port, localAddress, localPort));
}
}