package org.bouncycastle.crypto.tls;
import java.io.IOException;
import java.io.InputStream;
import java.io.OutputStream;
import org.bouncycastle.asn1.ASN1Encoding;
import org.bouncycastle.asn1.ocsp.OCSPResponse;
public class CertificateStatus
{
protected short statusType;
protected Object response;
public CertificateStatus(short statusType, Object response)
{
if (!isCorrectType(statusType, response))
{
throw new IllegalArgumentException("'response' is not an instance of the correct type");
}
this.statusType = statusType;
this.response = response;
}
public short getStatusType()
{
return statusType;
}
public Object getResponse()
{
return response;
}
public OCSPResponse getOCSPResponse()
{
if (!isCorrectType(CertificateStatusType.ocsp, response))
{
throw new IllegalStateException("'response' is not an OCSPResponse");
}
return (OCSPResponse)response;
}
/**
* Encode this {@link CertificateStatus} to an {@link OutputStream}.
*
* @param output
* the {@link OutputStream} to encode to.
* @throws IOException
*/
public void encode(OutputStream output) throws IOException
{
TlsUtils.writeUint8(statusType, output);
switch (statusType)
{
case CertificateStatusType.ocsp:
byte[] derEncoding = ((OCSPResponse) response).getEncoded(ASN1Encoding.DER);
TlsUtils.writeOpaque24(derEncoding, output);
break;
default:
throw new TlsFatalAlert(AlertDescription.internal_error);
}
}
/**
* Parse a {@link CertificateStatus} from an {@link InputStream}.
*
* @param input
* the {@link InputStream} to parse from.
* @return a {@link CertificateStatus} object.
* @throws IOException
*/
public static CertificateStatus parse(InputStream input) throws IOException
{
short status_type = TlsUtils.readUint8(input);
Object response;
switch (status_type)
{
case CertificateStatusType.ocsp:
{
byte[] derEncoding = TlsUtils.readOpaque24(input);
response = OCSPResponse.getInstance(TlsUtils.readDERObject(derEncoding));
break;
}
default:
throw new TlsFatalAlert(AlertDescription.decode_error);
}
return new CertificateStatus(status_type, response);
}
protected static boolean isCorrectType(short statusType, Object response)
{
switch (statusType)
{
case CertificateStatusType.ocsp:
return response instanceof OCSPResponse;
default:
throw new IllegalArgumentException("'statusType' is an unsupported value");
}
}
}