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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.jsse;
import java.net.Socket;
import java.security.Principal;
import java.security.PrivateKey;
import java.security.cert.X509Certificate;
import javax.net.ssl.SSLEngine;
import javax.net.ssl.X509ExtendedKeyManager;
import javax.net.ssl.X509KeyManager;
/**
* X509KeyManager which allows selection of a specific keypair and certificate
* chain (identified by their keystore alias name) to be used by the server to
* authenticate itself to SSL clients.
*
* @author Jan Luehe
*/
public final class JSSEKeyManager extends X509ExtendedKeyManager {
private X509KeyManager delegate;
private String serverKeyAlias;
/**
* Constructor.
*
* @param mgr The X509KeyManager used as a delegate
* @param serverKeyAlias The alias name of the server's keypair and
* supporting certificate chain
*/
public JSSEKeyManager(X509KeyManager mgr, String serverKeyAlias) {
super();
this.delegate = mgr;
this.serverKeyAlias = serverKeyAlias;
}
/**
* Choose an alias to authenticate the client side of a secure socket,
* given the public key type and the list of certificate issuer authorities
* recognized by the peer (if any).
*
* @param keyType The key algorithm type name(s), ordered with the
* most-preferred key type first
* @param issuers The list of acceptable CA issuer subject names, or null
* if it does not matter which issuers are used
* @param socket The socket to be used for this connection. This parameter
* can be null, in which case this method will return the most generic
* alias to use
*
* @return The alias name for the desired key, or null if there are no
* matches
*/
@Override
public String chooseClientAlias(String[] keyType, Principal[] issuers,
Socket socket) {
return delegate.chooseClientAlias(keyType, issuers, socket);
}
/**
* Returns this key manager's server key alias that was provided in the
* constructor.
*
* @param keyType Ignored
* @param issuers Ignored
* @param socket Ignored
*
* @return Alias name for the desired key
*/
@Override
public String chooseServerAlias(String keyType, Principal[] issuers,
Socket socket) {
return serverKeyAlias;
}
/**
* Returns the certificate chain associated with the given alias.
*
* @param alias The alias name
*
* @return Certificate chain (ordered with the user's certificate first
* and the root certificate authority last), or null if the alias can't be
* found
*/
@Override
public X509Certificate[] getCertificateChain(String alias) {
return delegate.getCertificateChain(alias);
}
/**
* Get the matching aliases for authenticating the client side of a secure
* socket, given the public key type and the list of certificate issuer
* authorities recognized by the peer (if any).
*
* @param keyType The key algorithm type name
* @param issuers The list of acceptable CA issuer subject names, or null
* if it does not matter which issuers are used
*
* @return Array of the matching alias names, or null if there were no
* matches
*/
@Override
public String[] getClientAliases(String keyType, Principal[] issuers) {
return delegate.getClientAliases(keyType, issuers);
}
/**
* Get the matching aliases for authenticating the server side of a secure
* socket, given the public key type and the list of certificate issuer
* authorities recognized by the peer (if any).
*
* @param keyType The key algorithm type name
* @param issuers The list of acceptable CA issuer subject names, or null
* if it does not matter which issuers are used
*
* @return Array of the matching alias names, or null if there were no
* matches
*/
@Override
public String[] getServerAliases(String keyType, Principal[] issuers) {
return delegate.getServerAliases(keyType, issuers);
}
/**
* Returns the key associated with the given alias.
*
* @param alias The alias name
*
* @return The requested key, or null if the alias can't be found
*/
@Override
public PrivateKey getPrivateKey(String alias) {
return delegate.getPrivateKey(alias);
}
/**
* Choose an alias to authenticate the client side of a secure socket,
* given the public key type and the list of certificate issuer authorities
* recognized by the peer (if any).
*
* @param keyType The key algorithm type name(s), ordered with the
* most-preferred key type first
* @param issuers The list of acceptable CA issuer subject names, or null
* if it does not matter which issuers are used
* @param engine Ignored
*
* @return The alias name for the desired key, or null if there are no
* matches
*/
@Override
public String chooseEngineClientAlias(String[] keyType, Principal[] issuers,
SSLEngine engine) {
return delegate.chooseClientAlias(keyType, issuers, null);
}
/**
* Returns this key manager's server key alias that was provided in the
* constructor.
*
* @param keyType Ignored
* @param issuers Ignored
* @param engine Ignored
*
* @return Alias name for the desired key
*/
@Override
public String chooseEngineServerAlias(String keyType, Principal[] issuers,
SSLEngine engine) {
return serverKeyAlias;
}
}
