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package org.bouncycastle.cert.ocsp;
import java.io.IOException;
import java.io.OutputStream;
import java.util.Date;
import java.util.List;
import java.util.Set;
import org.bouncycastle.asn1.ASN1Encoding;
import org.bouncycastle.asn1.ASN1ObjectIdentifier;
import org.bouncycastle.asn1.ASN1Sequence;
import org.bouncycastle.asn1.ocsp.BasicOCSPResponse;
import org.bouncycastle.asn1.ocsp.ResponseData;
import org.bouncycastle.asn1.ocsp.SingleResponse;
import org.bouncycastle.asn1.x509.AlgorithmIdentifier;
import org.bouncycastle.asn1.x509.Certificate;
import org.bouncycastle.asn1.x509.Extension;
import org.bouncycastle.asn1.x509.Extensions;
import org.bouncycastle.cert.X509CertificateHolder;
import org.bouncycastle.operator.ContentVerifier;
import org.bouncycastle.operator.ContentVerifierProvider;
import org.bouncycastle.util.Encodable;
/**
* <pre>
* BasicOCSPResponse ::= SEQUENCE {
* tbsResponseData ResponseData,
* signatureAlgorithm AlgorithmIdentifier,
* signature BIT STRING,
* certs [0] EXPLICIT SEQUENCE OF Certificate OPTIONAL }
* </pre>
*/
public class BasicOCSPResp
implements Encodable
{
private BasicOCSPResponse resp;
private ResponseData data;
private Extensions extensions;
public BasicOCSPResp(
BasicOCSPResponse resp)
{
this.resp = resp;
this.data = resp.getTbsResponseData();
this.extensions = Extensions.getInstance(resp.getTbsResponseData().getResponseExtensions());
}
/**
* Return the DER encoding of the tbsResponseData field.
* @return DER encoding of tbsResponseData
*/
public byte[] getTBSResponseData()
{
try
{
return resp.getTbsResponseData().getEncoded(ASN1Encoding.DER);
}
catch (IOException e)
{
return null;
}
}
/**
* Return the algorithm identifier describing the signature used in the response.
*
* @return an AlgorithmIdentifier
*/
public AlgorithmIdentifier getSignatureAlgorithmID()
{
return resp.getSignatureAlgorithm();
}
public int getVersion()
{
return data.getVersion().getValue().intValue() + 1;
}
public RespID getResponderId()
{
return new RespID(data.getResponderID());
}
public Date getProducedAt()
{
return OCSPUtils.extractDate(data.getProducedAt());
}
public SingleResp[] getResponses()
{
ASN1Sequence s = data.getResponses();
SingleResp[] rs = new SingleResp[s.size()];
for (int i = 0; i != rs.length; i++)
{
rs[i] = new SingleResp(SingleResponse.getInstance(s.getObjectAt(i)));
}
return rs;
}
public boolean hasExtensions()
{
return extensions != null;
}
public Extension getExtension(ASN1ObjectIdentifier oid)
{
if (extensions != null)
{
return extensions.getExtension(oid);
}
return null;
}
public List getExtensionOIDs()
{
return OCSPUtils.getExtensionOIDs(extensions);
}
public Set getCriticalExtensionOIDs()
{
return OCSPUtils.getCriticalExtensionOIDs(extensions);
}
public Set getNonCriticalExtensionOIDs()
{
return OCSPUtils.getNonCriticalExtensionOIDs(extensions);
}
public ASN1ObjectIdentifier getSignatureAlgOID()
{
return resp.getSignatureAlgorithm().getAlgorithm();
}
public byte[] getSignature()
{
return resp.getSignature().getBytes();
}
public X509CertificateHolder[] getCerts()
{
//
// load the certificates if we have any
//
if (resp.getCerts() != null)
{
ASN1Sequence s = resp.getCerts();
if (s != null)
{
X509CertificateHolder[] certs = new X509CertificateHolder[s.size()];
for (int i = 0; i != certs.length; i++)
{
certs[i] = new X509CertificateHolder(Certificate.getInstance(s.getObjectAt(i)));
}
return certs;
}
return OCSPUtils.EMPTY_CERTS;
}
else
{
return OCSPUtils.EMPTY_CERTS;
}
}
/**
* verify the signature against the tbsResponseData object we contain.
*/
public boolean isSignatureValid(
ContentVerifierProvider verifierProvider)
throws OCSPException
{
try
{
ContentVerifier verifier = verifierProvider.get(resp.getSignatureAlgorithm());
OutputStream vOut = verifier.getOutputStream();
vOut.write(resp.getTbsResponseData().getEncoded(ASN1Encoding.DER));
vOut.close();
return verifier.verify(this.getSignature());
}
catch (Exception e)
{
throw new OCSPException("exception processing sig: " + e, e);
}
}
/**
* return the ASN.1 encoded representation of this object.
*/
public byte[] getEncoded()
throws IOException
{
return resp.getEncoded();
}
public boolean equals(Object o)
{
if (o == this)
{
return true;
}
if (!(o instanceof BasicOCSPResp))
{
return false;
}
BasicOCSPResp r = (BasicOCSPResp)o;
return resp.equals(r.resp);
}
public int hashCode()
{
return resp.hashCode();
}
}
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