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org.elasticsearch.hadoop.rest.commonshttp.SSLSocketFactory Maven / Gradle / Ivy
/*
* 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.
*/
package org.elasticsearch.hadoop.rest.commonshttp;
import java.io.IOException;
import java.io.InputStream;
import java.net.InetAddress;
import java.net.InetSocketAddress;
import java.net.Socket;
import java.net.SocketAddress;
import java.net.UnknownHostException;
import java.security.GeneralSecurityException;
import java.security.KeyStore;
import java.security.NoSuchAlgorithmException;
import java.security.cert.CertificateException;
import java.security.cert.X509Certificate;
import javax.net.SocketFactory;
import javax.net.ssl.KeyManager;
import javax.net.ssl.KeyManagerFactory;
import javax.net.ssl.SSLContext;
import javax.net.ssl.TrustManager;
import javax.net.ssl.TrustManagerFactory;
import javax.net.ssl.X509TrustManager;
import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import org.elasticsearch.hadoop.EsHadoopIllegalArgumentException;
import org.elasticsearch.hadoop.EsHadoopIllegalStateException;
import org.elasticsearch.hadoop.cfg.ConfigurationOptions;
import org.elasticsearch.hadoop.cfg.Settings;
import org.elasticsearch.hadoop.security.SecureSettings;
import org.elasticsearch.hadoop.thirdparty.apache.commons.httpclient.ConnectTimeoutException;
import org.elasticsearch.hadoop.thirdparty.apache.commons.httpclient.params.HttpConnectionParams;
import org.elasticsearch.hadoop.thirdparty.apache.commons.httpclient.protocol.SecureProtocolSocketFactory;
import org.elasticsearch.hadoop.util.IOUtils;
import org.elasticsearch.hadoop.util.StringUtils;
class SSLSocketFactory implements SecureProtocolSocketFactory {
private static class TrustManagerDelegate implements X509TrustManager {
private final X509TrustManager trustManager;
private final TrustStrategy trustStrategy;
TrustManagerDelegate(final X509TrustManager trustManager, final TrustStrategy trustStrategy) {
super();
this.trustManager = trustManager;
this.trustStrategy = trustStrategy;
}
public void checkClientTrusted(final X509Certificate[] chain, final String authType)
throws CertificateException {
this.trustManager.checkClientTrusted(chain, authType);
}
public void checkServerTrusted(final X509Certificate[] chain, final String authType)
throws CertificateException {
if (!this.trustStrategy.isTrusted(chain, authType)) {
this.trustManager.checkServerTrusted(chain, authType);
}
}
public X509Certificate[] getAcceptedIssuers() {
return this.trustManager.getAcceptedIssuers();
}
}
private static interface TrustStrategy {
boolean isTrusted(X509Certificate[] chain, String authType) throws CertificateException;
}
private static class SelfSignedStrategy implements TrustStrategy {
public boolean isTrusted(X509Certificate[] chain, String authType) throws CertificateException {
return chain.length == 1;
}
}
private static final Log LOG = LogFactory.getLog(SSLSocketFactory.class);
private SSLContext sslContext = null;
private final String sslProtocol;
private final String keyStoreLocation;
private final String keyStorePass;
private final String keyStoreType;
private final String trustStoreLocation;
private final String trustStorePass;
private final TrustStrategy trust;
SSLSocketFactory(Settings settings, SecureSettings secureSettings) {
sslProtocol = settings.getNetworkSSLProtocol();
keyStoreLocation = settings.getNetworkSSLKeyStoreLocation();
keyStorePass = secureSettings.getSecureProperty(ConfigurationOptions.ES_NET_SSL_KEYSTORE_PASS);
keyStoreType = settings.getNetworkSSLKeyStoreType();
trustStoreLocation = settings.getNetworkSSLTrustStoreLocation();
trustStorePass = secureSettings.getSecureProperty(ConfigurationOptions.ES_NET_SSL_TRUST_STORE_PASS);
trust = (settings.getNetworkSSLAcceptSelfSignedCert() ? new SelfSignedStrategy() : null);
}
@Override
public Socket createSocket(String host, int port, InetAddress localAddress, int localPort, HttpConnectionParams params) throws IOException, UnknownHostException, ConnectTimeoutException {
if (params == null) {
throw new IllegalArgumentException("Parameters may not be null");
}
int timeout = params.getConnectionTimeout();
SocketFactory socketfactory = getSSLContext().getSocketFactory();
if (timeout == 0) {
return socketfactory.createSocket(host, port, localAddress, localPort);
}
else {
Socket socket = socketfactory.createSocket();
SocketAddress localaddr = new InetSocketAddress(localAddress, localPort);
SocketAddress remoteaddr = new InetSocketAddress(host, port);
socket.bind(localaddr);
socket.connect(remoteaddr, timeout);
return socket;
}
}
@Override
public Socket createSocket(String host, int port) throws IOException, UnknownHostException {
return getSSLContext().getSocketFactory().createSocket(host, port);
}
@Override
public Socket createSocket(Socket socket, String host, int port, boolean autoClose) throws IOException, UnknownHostException {
return getSSLContext().getSocketFactory().createSocket(socket, host, port, autoClose);
}
@Override
public Socket createSocket(String host, int port, InetAddress localAddress, int localPort) throws IOException, UnknownHostException {
return getSSLContext().getSocketFactory().createSocket(host, port, localAddress, localPort);
}
private SSLContext getSSLContext() {
if (sslContext == null) {
sslContext = createSSLContext();
}
return sslContext;
}
private SSLContext createSSLContext() {
SSLContext ctx;
try {
ctx = SSLContext.getInstance(sslProtocol);
} catch (NoSuchAlgorithmException ex) {
throw new EsHadoopIllegalStateException("Cannot instantiate SSL - " + ex.getMessage(), ex);
}
try {
ctx.init(loadKeyManagers(), loadTrustManagers(), null);
} catch (Exception ex) {
throw new EsHadoopIllegalStateException("Cannot initialize SSL - " + ex.getMessage(), ex);
}
return ctx;
}
private KeyStore loadKeyStore(String location, char[] pass) throws GeneralSecurityException, IOException {
KeyStore keyStore = KeyStore.getInstance(keyStoreType);
InputStream in = null;
try {
if (LOG.isDebugEnabled()) {
LOG.debug("Loading keystore located at [" + location + "]");
}
try {
in = IOUtils.open(location);
if (in == null) {
throw new EsHadoopIllegalArgumentException(String.format("Could not locate [%s] on classpath", location));
}
} catch (Exception e) {
throw new EsHadoopIllegalArgumentException(String.format("Expected to find keystore file at [%s] but " +
"was unable to. Make sure that it is available on the classpath, or if not, that you have " +
"specified a valid URI.", location));
}
keyStore.load(in, pass);
}
finally {
IOUtils.close(in);
}
return keyStore;
}
private KeyManager[] loadKeyManagers() throws GeneralSecurityException, IOException {
if (!StringUtils.hasText(keyStoreLocation)) {
LOG.debug("No keystore location specified! SSL is continuing with no keystore.");
return null;
}
char[] pass = (StringUtils.hasText(keyStorePass) ? keyStorePass.trim().toCharArray() : null);
KeyStore keyStore = loadKeyStore(keyStoreLocation, pass);
KeyManagerFactory kmFactory = KeyManagerFactory.getInstance(KeyManagerFactory.getDefaultAlgorithm());
kmFactory.init(keyStore, pass);
return kmFactory.getKeyManagers();
}
private TrustManager[] loadTrustManagers() throws GeneralSecurityException, IOException {
KeyStore keyStore = null;
if (StringUtils.hasText(trustStoreLocation)) {
char[] pass = (StringUtils.hasText(trustStorePass) ? trustStorePass.trim().toCharArray() : null);
keyStore = loadKeyStore(trustStoreLocation, pass);
} else {
LOG.debug("No truststore location specified! SSL is continuing with no truststore.");
}
TrustManagerFactory tmFactory = TrustManagerFactory.getInstance(TrustManagerFactory.getDefaultAlgorithm());
tmFactory.init(keyStore);
TrustManager[] tms = tmFactory.getTrustManagers();
if (tms != null && trust != null) {
// be defensive since the underlying impl might not give us a copy
TrustManager[] clone = new TrustManager[tms.length];
for (int i = 0; i < tms.length; i++) {
TrustManager tm = tms[i];
if (tm instanceof X509TrustManager) {
tm = new TrustManagerDelegate((X509TrustManager) tm, trust);
}
clone[i] = tm;
}
tms = clone;
}
return tms;
}
public boolean equals(Object obj) {
return ((obj != null) && obj.getClass().equals(SSLSocketFactory.class));
}
public int hashCode() {
return getClass().hashCode();
}
}
