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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.qpid.transport.network.security.ssl;
import java.security.KeyStore;
import java.security.KeyStoreException;
import java.security.cert.Certificate;
import java.security.cert.CertificateException;
import java.security.cert.X509Certificate;
import java.util.ArrayList;
import java.util.Enumeration;
import java.util.List;
import javax.net.ssl.X509TrustManager;
/**
* TrustManager implementation which accepts the client certificate
* only if the underlying check by the delegate pass through and
* the certificate is physically saved in the truststore.
*/
public class QpidPeersOnlyTrustManager implements X509TrustManager {
final private KeyStore ts;
final private X509TrustManager delegate;
final List<Certificate> trustedCerts = new ArrayList<Certificate>();
public QpidPeersOnlyTrustManager(KeyStore ts, X509TrustManager trustManager) throws KeyStoreException {
this.ts = ts;
this.delegate = trustManager;
Enumeration<String> aliases = this.ts.aliases();
while (aliases.hasMoreElements())
{
trustedCerts.add(ts.getCertificate(aliases.nextElement()));
}
}
@Override
public void checkClientTrusted(X509Certificate[] chain, String authType)
throws CertificateException {
this.delegate.checkClientTrusted(chain, authType);
for (Certificate serverTrustedCert : this.trustedCerts)
{
// first position in the chain contains the peer's own certificate
if (chain[0].equals(serverTrustedCert))
return; // peer's certificate found in the store
}
// peer's certificate was not found in the store, do not trust the client
throw new CertificateException();
}
@Override
public void checkServerTrusted(X509Certificate[] chain, String authType)
throws CertificateException {
this.delegate.checkServerTrusted(chain, authType);
}
@Override
public X509Certificate[] getAcceptedIssuers() {
// return empty array since this implementation of TrustManager doesn't
// rely on certification authorities
return new X509Certificate[0];
}
}
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