| /* |
| * Copyright 1999-2004 The Apache Software Foundation |
| * |
| * 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 org.apache.ftpserver.ssl.impl; |
| |
| import java.net.Socket; |
| import java.security.Principal; |
| import java.security.PrivateKey; |
| import java.security.cert.X509Certificate; |
| |
| import javax.net.ssl.KeyManager; |
| import javax.net.ssl.X509KeyManager; |
| |
| /** |
| * <strong>Internal class, do not use directly.</strong> |
| * |
| * 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. |
| * |
| * This class is only used on Java 1.4 systems, on Java 1.5 and newer the @see |
| * {@link ExtendedAliasKeyManager} is used instead |
| * |
| * Based of org.apache.tomcat.util.net.jsse.JSSEKeyManager. |
| * |
| * @author <a href="http://mina.apache.org">Apache MINA Project</a> |
| */ |
| public final class AliasKeyManager implements X509KeyManager { |
| |
| private final X509KeyManager delegate; |
| |
| private final String serverKeyAlias; |
| |
| /** |
| * Constructor. |
| * |
| * @param mgr |
| * The X509KeyManager used as a delegate |
| * @param keyStore |
| * @param serverKeyAlias |
| * The alias name of the server's keypair and supporting |
| * certificate chain |
| * @param keyAlias |
| */ |
| public AliasKeyManager(KeyManager mgr, String keyAlias) { |
| this.delegate = (X509KeyManager) mgr; |
| this.serverKeyAlias = keyAlias; |
| } |
| |
| /** |
| * 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 |
| */ |
| 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 |
| * 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 (ignored) |
| * @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 (ignored) |
| * |
| * @return Alias name for the desired key |
| */ |
| public String chooseServerAlias(String keyType, Principal[] issuers, |
| Socket socket) { |
| if (serverKeyAlias != null) { |
| PrivateKey key = delegate.getPrivateKey(serverKeyAlias); |
| if (key != null) { |
| if (key.getAlgorithm().equals(keyType)) { |
| return serverKeyAlias; |
| } else { |
| return null; |
| } |
| } else { |
| return null; |
| } |
| } else { |
| return delegate.chooseServerAlias(keyType, issuers, socket); |
| } |
| } |
| |
| /** |
| * 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 |
| */ |
| 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 |
| */ |
| 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 |
| */ |
| 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 |
| */ |
| public PrivateKey getPrivateKey(String alias) { |
| return delegate.getPrivateKey(alias); |
| } |
| } |