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using System;
using System.IO;
namespace Org.BouncyCastle.Tls
{
/// <summary>Implementation of the RFC 3546 3.6. CertificateStatusRequest.</summary>
public sealed class CertificateStatusRequest
{
private short m_statusType;
private object m_request;
public CertificateStatusRequest(short statusType, object request)
{
if (!IsCorrectType(statusType, request))
throw new ArgumentException("not an instance of the correct type", "request");
this.m_statusType = statusType;
this.m_request = request;
}
public short StatusType
{
get { return m_statusType; }
}
public object Request
{
get { return m_request; }
}
public OcspStatusRequest OcspStatusRequest
{
get
{
if (!IsCorrectType(CertificateStatusType.ocsp, m_request))
throw new InvalidOperationException("'request' is not an OCSPStatusRequest");
return (OcspStatusRequest)m_request;
}
}
/// <summary>Encode this <see cref="CertificateStatusRequest"/> to a <see cref="Stream"/>.</summary>
/// <param name="output">the <see cref="Stream"/> to encode to.</param>
/// <exception cref="IOException"/>
public void Encode(Stream output)
{
TlsUtilities.WriteUint8(m_statusType, output);
switch (m_statusType)
{
case CertificateStatusType.ocsp:
((OcspStatusRequest)m_request).Encode(output);
break;
default:
throw new TlsFatalAlert(AlertDescription.internal_error);
}
}
/// <summary>Parse a <see cref="CertificateStatusRequest"/> from a <see cref="Stream"/>.</summary>
/// <param name="input">the <see cref="Stream"/> to parse from.</param>
/// <returns>a <see cref="CertificateStatusRequest"/> object.</returns>
/// <exception cref="IOException"/>
public static CertificateStatusRequest Parse(Stream input)
{
short status_type = TlsUtilities.ReadUint8(input);
object request;
switch (status_type)
{
case CertificateStatusType.ocsp:
request = OcspStatusRequest.Parse(input);
break;
default:
throw new TlsFatalAlert(AlertDescription.decode_error);
}
return new CertificateStatusRequest(status_type, request);
}
private static bool IsCorrectType(short statusType, object request)
{
switch (statusType)
{
case CertificateStatusType.ocsp:
return request is OcspStatusRequest;
default:
throw new ArgumentException("unsupported CertificateStatusType", "statusType");
}
}
}
}
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