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* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership.
* The ASF 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.apache.tomcat.util.net;
import java.io.IOException;
import java.net.InetSocketAddress;
import java.net.SocketAddress;
import java.nio.channels.NetworkChannel;
import java.util.ArrayList;
import java.util.LinkedHashSet;
import java.util.List;
import java.util.Set;
import javax.net.ssl.SSLEngine;
import javax.net.ssl.SSLParameters;
import org.apache.tomcat.util.compat.JreCompat;
import org.apache.tomcat.util.net.openssl.ciphers.Cipher;
public abstract class AbstractJsseEndpoint extends AbstractEndpoint {
private String sslImplementationName = null;
private int sniParseLimit = 64 * 1024;
private SSLImplementation sslImplementation = null;
public String getSslImplementationName() {
return sslImplementationName;
}
public void setSslImplementationName(String s) {
this.sslImplementationName = s;
}
public SSLImplementation getSslImplementation() {
return sslImplementation;
}
public int getSniParseLimit() {
return sniParseLimit;
}
public void setSniParseLimit(int sniParseLimit) {
this.sniParseLimit = sniParseLimit;
}
protected void initialiseSsl() throws Exception {
if (isSSLEnabled()) {
sslImplementation = SSLImplementation.getInstance(getSslImplementationName());
for (SSLHostConfig sslHostConfig : sslHostConfigs.values()) {
createSSLContext(sslHostConfig);
}
// Validate default SSLHostConfigName
if (sslHostConfigs.get(getDefaultSSLHostConfigName()) == null) {
throw new IllegalArgumentException(sm.getString("endpoint.noSslHostConfig",
getDefaultSSLHostConfigName(), getName()));
}
}
}
@Override
protected void createSSLContext(SSLHostConfig sslHostConfig) throws IllegalArgumentException {
boolean firstCertificate = true;
for (SSLHostConfigCertificate certificate : sslHostConfig.getCertificates(true)) {
SSLUtil sslUtil = sslImplementation.getSSLUtil(certificate);
if (firstCertificate) {
firstCertificate = false;
sslHostConfig.setEnabledProtocols(sslUtil.getEnabledProtocols());
sslHostConfig.setEnabledCiphers(sslUtil.getEnabledCiphers());
}
SSLContext sslContext;
try {
sslContext = sslUtil.createSSLContext(negotiableProtocols);
} catch (Exception e) {
throw new IllegalArgumentException(e.getMessage(), e);
}
certificate.setSslContext(sslContext);
}
}
protected SSLEngine createSSLEngine(String sniHostName, List clientRequestedCiphers,
List clientRequestedApplicationProtocols) {
SSLHostConfig sslHostConfig = getSSLHostConfig(sniHostName);
SSLHostConfigCertificate certificate = selectCertificate(sslHostConfig, clientRequestedCiphers);
SSLContext sslContext = certificate.getSslContext();
if (sslContext == null) {
throw new IllegalStateException(
sm.getString("endpoint.jsse.noSslContext", sniHostName));
}
SSLEngine engine = sslContext.createSSLEngine();
switch (sslHostConfig.getCertificateVerification()) {
case NONE:
engine.setNeedClientAuth(false);
engine.setWantClientAuth(false);
break;
case OPTIONAL:
case OPTIONAL_NO_CA:
engine.setWantClientAuth(true);
break;
case REQUIRED:
engine.setNeedClientAuth(true);
break;
}
engine.setUseClientMode(false);
engine.setEnabledCipherSuites(sslHostConfig.getEnabledCiphers());
engine.setEnabledProtocols(sslHostConfig.getEnabledProtocols());
SSLParameters sslParameters = engine.getSSLParameters();
sslParameters.setUseCipherSuitesOrder(sslHostConfig.getHonorCipherOrder());
if (JreCompat.isJre9Available() && clientRequestedApplicationProtocols != null
&& clientRequestedApplicationProtocols.size() > 0
&& negotiableProtocols.size() > 0) {
// Only try to negotiate if both client and server have at least
// one protocol in common
// Note: Tomcat does not explicitly negotiate http/1.1
// TODO: Is this correct? Should it change?
List commonProtocols = new ArrayList<>();
commonProtocols.addAll(negotiableProtocols);
commonProtocols.retainAll(clientRequestedApplicationProtocols);
if (commonProtocols.size() > 0) {
String[] commonProtocolsArray = commonProtocols.toArray(new String[commonProtocols.size()]);
JreCompat.getInstance().setApplicationProtocols(sslParameters, commonProtocolsArray);
}
}
// In case the getter returns a defensive copy
engine.setSSLParameters(sslParameters);
return engine;
}
private SSLHostConfigCertificate selectCertificate(
SSLHostConfig sslHostConfig, List clientCiphers) {
Set certificates = sslHostConfig.getCertificates(true);
if (certificates.size() == 1) {
return certificates.iterator().next();
}
LinkedHashSet serverCiphers = sslHostConfig.getCipherList();
List candidateCiphers = new ArrayList<>();
if (sslHostConfig.getHonorCipherOrder()) {
candidateCiphers.addAll(serverCiphers);
candidateCiphers.retainAll(clientCiphers);
} else {
candidateCiphers.addAll(clientCiphers);
candidateCiphers.retainAll(serverCiphers);
}
for (Cipher candidate : candidateCiphers) {
for (SSLHostConfigCertificate certificate : certificates) {
if (certificate.getType().isCompatibleWith(candidate.getAu())) {
return certificate;
}
}
}
// No matches. Just return the first certificate. The handshake will
// then fail due to no matching ciphers.
return certificates.iterator().next();
}
@Override
public boolean isAlpnSupported() {
// ALPN requires TLS so if TLS is not enabled, ALPN cannot be supported
if (!isSSLEnabled()) {
return false;
}
// Depends on the SSLImplementation.
SSLImplementation sslImplementation;
try {
sslImplementation = SSLImplementation.getInstance(getSslImplementationName());
} catch (ClassNotFoundException e) {
// Ignore the exception. It will be logged when trying to start the
// end point.
return false;
}
return sslImplementation.isAlpnSupported();
}
@Override
public void unbind() throws Exception {
for (SSLHostConfig sslHostConfig : sslHostConfigs.values()) {
for (SSLHostConfigCertificate certificate : sslHostConfig.getCertificates(true)) {
certificate.setSslContext(null);
}
}
}
protected abstract NetworkChannel getServerSocket();
@Override
protected final InetSocketAddress getLocalAddress() throws IOException {
NetworkChannel serverSock = getServerSocket();
if (serverSock == null) {
return null;
}
SocketAddress sa = serverSock.getLocalAddress();
if (sa instanceof InetSocketAddress) {
return (InetSocketAddress) sa;
}
return null;
}
}