com.unboundid.util.ssl.AggregateTrustManager Maven / Gradle / Ivy
/*
* Copyright 2012-2019 Ping Identity Corporation
* All Rights Reserved.
*/
/*
* Copyright (C) 2012-2019 Ping Identity Corporation
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License (GPLv2 only)
* or the terms of the GNU Lesser General Public License (LGPLv2.1 only)
* as published by the Free Software Foundation.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, see .
*/
package com.unboundid.util.ssl;
import java.security.cert.CertificateException;
import java.security.cert.X509Certificate;
import java.util.ArrayList;
import java.util.Collection;
import java.util.Collections;
import java.util.List;
import javax.net.ssl.X509TrustManager;
import com.unboundid.util.Debug;
import com.unboundid.util.NotMutable;
import com.unboundid.util.StaticUtils;
import com.unboundid.util.ThreadSafety;
import com.unboundid.util.ThreadSafetyLevel;
import com.unboundid.util.Validator;
import static com.unboundid.util.ssl.SSLMessages.*;
/**
* This class provides an SSL trust manager that has the ability to delegate the
* determination about whether to trust a given certificate to one or more other
* trust managers. It can be configured to use a logical AND (i.e., all
* associated trust managers must be satisfied) or a logical OR (i.e., at least
* one of the associated trust managers must be satisfied).
*/
@NotMutable()
@ThreadSafety(level=ThreadSafetyLevel.COMPLETELY_THREADSAFE)
public final class AggregateTrustManager
implements X509TrustManager
{
/**
* A pre-allocated empty certificate array.
*/
private static final X509Certificate[] NO_CERTIFICATES =
new X509Certificate[0];
// Indicates whether to require all of the associated trust managers to accept
// a presented certificate, or just to require at least one of them to accept
// the certificate.
private final boolean requireAllAccepted;
// The trust managers that will be used to ultimately make the determination.
private final List trustManagers;
/**
* Creates a new aggregate trust manager with the provided information.
*
* @param requireAllAccepted Indicates whether all of the associated trust
* managers must accept a presented certificate
* for it to be allowed, or just at least one of
* them.
* @param trustManagers The set of trust managers to use to make the
* determination. It must not be {@code null} or
* empty.
*/
public AggregateTrustManager(final boolean requireAllAccepted,
final X509TrustManager ... trustManagers)
{
this(requireAllAccepted, StaticUtils.toList(trustManagers));
}
/**
* Creates a new aggregate trust manager with the provided information.
*
* @param requireAllAccepted Indicates whether all of the associated trust
* managers must accept a presented certificate
* for it to be allowed, or just at least one of
* them.
* @param trustManagers The set of trust managers to use to make the
* determination. It must not be {@code null} or
* empty.
*/
public AggregateTrustManager(final boolean requireAllAccepted,
final Collection trustManagers)
{
Validator.ensureNotNull(trustManagers);
Validator.ensureFalse(trustManagers.isEmpty(),
"The set of associated trust managers must not be empty.");
this.requireAllAccepted = requireAllAccepted;
this.trustManagers =
Collections.unmodifiableList(new ArrayList<>(trustManagers));
}
/**
* Indicates whether all of the associated trust managers will be required to
* accept a given certificate for it to be considered acceptable.
*
* @return {@code true} if all of the associated trust managers will be
* required to accept the provided certificate chain, or
* {@code false} if it will be acceptable for at least one trust
* manager to accept the chain even if one or more others do not.
*/
public boolean requireAllAccepted()
{
return requireAllAccepted;
}
/**
* Retrieves the set of trust managers that will be used to perform the
* validation.
*
* @return The set of trust managers that will be used to perform the
* validation.
*/
public List getAssociatedTrustManagers()
{
return trustManagers;
}
/**
* Checks to determine whether the provided client certificate chain should be
* trusted.
*
* @param chain The client certificate chain for which to make the
* determination.
* @param authType The authentication type based on the client certificate.
*
* @throws CertificateException If the provided client certificate chain
* should not be trusted.
*/
@Override()
public void checkClientTrusted(final X509Certificate[] chain,
final String authType)
throws CertificateException
{
ArrayList exceptionMessages = null;
for (final X509TrustManager m : trustManagers)
{
try
{
m.checkClientTrusted(chain, authType);
if (! requireAllAccepted)
{
return;
}
}
catch (final CertificateException ce)
{
Debug.debugException(ce);
if (requireAllAccepted)
{
throw ce;
}
else
{
if (exceptionMessages == null)
{
exceptionMessages = new ArrayList<>(trustManagers.size());
}
exceptionMessages.add(ce.getMessage());
}
}
}
// If we've gotten here and there are one or more exception messages, then
// it means that none of the associated trust managers accepted the
// certificate.
if ((exceptionMessages != null) && (! exceptionMessages.isEmpty()))
{
if (exceptionMessages.size() == 1)
{
throw new CertificateException(exceptionMessages.get(0));
}
else
{
throw new CertificateException(
ERR_AGGREGATE_TRUST_MANAGER_NONE_TRUSTED.get(
SSLUtil.certificateToString(chain[0]),
StaticUtils.concatenateStrings(exceptionMessages)));
}
}
}
/**
* Checks to determine whether the provided server certificate chain should be
* trusted.
*
* @param chain The server certificate chain for which to make the
* determination.
* @param authType The key exchange algorithm used.
*
* @throws CertificateException If the provided server certificate chain
* should not be trusted.
*/
@Override()
public void checkServerTrusted(final X509Certificate[] chain,
final String authType)
throws CertificateException
{
ArrayList exceptionMessages = null;
for (final X509TrustManager m : trustManagers)
{
try
{
m.checkServerTrusted(chain, authType);
if (! requireAllAccepted)
{
return;
}
}
catch (final CertificateException ce)
{
Debug.debugException(ce);
if (requireAllAccepted)
{
throw ce;
}
else
{
if (exceptionMessages == null)
{
exceptionMessages = new ArrayList<>(trustManagers.size());
}
exceptionMessages.add(ce.getMessage());
}
}
}
// If we've gotten here and there are one or more exception messages, then
// it means that none of the associated trust managers accepted the
// certificate.
if ((exceptionMessages != null) && (! exceptionMessages.isEmpty()))
{
if (exceptionMessages.size() == 1)
{
throw new CertificateException(exceptionMessages.get(0));
}
else
{
throw new CertificateException(
ERR_AGGREGATE_TRUST_MANAGER_NONE_TRUSTED.get(
SSLUtil.certificateToString(chain[0]),
StaticUtils.concatenateStrings(exceptionMessages)));
}
}
}
/**
* Retrieves the accepted issuer certificates for this trust manager. This
* will always return an empty array.
*
* @return The accepted issuer certificates for this trust manager.
*/
@Override()
public X509Certificate[] getAcceptedIssuers()
{
return NO_CERTIFICATES;
}
}