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package org.bouncycastle.jce.provider;
import org.bouncycastle.jce.cert.CertStore;
import org.bouncycastle.jce.cert.CertStoreException;
import org.bouncycastle.jce.cert.PKIXParameters;
import java.security.cert.X509CRL;
import java.security.cert.X509Certificate;
import java.util.Collection;
import java.util.Date;
import java.util.HashSet;
import java.util.Iterator;
import java.util.List;
import java.util.Set;
import org.bouncycastle.util.StoreException;
import org.bouncycastle.x509.ExtendedPKIXParameters;
import org.bouncycastle.x509.X509CRLStoreSelector;
import org.bouncycastle.x509.X509Store;
public class PKIXCRLUtil
{
public Set findCRLs(X509CRLStoreSelector crlselect, ExtendedPKIXParameters paramsPKIX, Date currentDate)
throws AnnotatedException
{
Set initialSet = new HashSet();
// get complete CRL(s)
try
{
initialSet.addAll(findCRLs(crlselect, paramsPKIX.getAdditionalStores()));
initialSet.addAll(findCRLs(crlselect, paramsPKIX.getStores()));
initialSet.addAll(findCRLs(crlselect, paramsPKIX.getCertStores()));
}
catch (AnnotatedException e)
{
throw new AnnotatedException("Exception obtaining complete CRLs.", e);
}
Set finalSet = new HashSet();
Date validityDate = currentDate;
if (paramsPKIX.getDate() != null)
{
validityDate = paramsPKIX.getDate();
}
// based on RFC 5280 6.3.3
for (Iterator it = initialSet.iterator(); it.hasNext();)
{
X509CRL crl = (X509CRL)it.next();
if (crl.getNextUpdate().after(validityDate))
{
X509Certificate cert = crlselect.getCertificateChecking();
if (cert != null)
{
if (crl.getThisUpdate().before(cert.getNotAfter()))
{
finalSet.add(crl);
}
}
else
{
finalSet.add(crl);
}
}
}
return finalSet;
}
public Set findCRLs(X509CRLStoreSelector crlselect, PKIXParameters paramsPKIX)
throws AnnotatedException
{
Set completeSet = new HashSet();
// get complete CRL(s)
try
{
completeSet.addAll(findCRLs(crlselect, paramsPKIX.getCertStores()));
}
catch (AnnotatedException e)
{
throw new AnnotatedException("Exception obtaining complete CRLs.", e);
}
return completeSet;
}
/**
* Return a Collection of all CRLs found in the X509Store's that are
* matching the crlSelect criteriums.
*
* @param crlSelect a {@link X509CRLStoreSelector} object that will be used
* to select the CRLs
* @param crlStores a List containing only
* {@link org.bouncycastle.x509.X509Store X509Store} objects.
* These are used to search for CRLs
*
* @return a Collection of all found {@link java.security.cert.X509CRL X509CRL} objects. May be
* empty but never <code>null</code>.
*/
private final Collection findCRLs(X509CRLStoreSelector crlSelect,
List crlStores) throws AnnotatedException
{
Set crls = new HashSet();
Iterator iter = crlStores.iterator();
AnnotatedException lastException = null;
boolean foundValidStore = false;
while (iter.hasNext())
{
Object obj = iter.next();
if (obj instanceof X509Store)
{
X509Store store = (X509Store)obj;
try
{
crls.addAll(store.getMatches(crlSelect));
foundValidStore = true;
}
catch (StoreException e)
{
lastException = new AnnotatedException(
"Exception searching in X.509 CRL store.", e);
}
}
else
{
CertStore store = (CertStore)obj;
try
{
crls.addAll(store.getCRLs(crlSelect));
foundValidStore = true;
}
catch (CertStoreException e)
{
lastException = new AnnotatedException(
"Exception searching in X.509 CRL store.", e);
}
}
}
if (!foundValidStore && lastException != null)
{
throw lastException;
}
return crls;
}
}
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