SubjectKeyIdentifier.cpp

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#include "SubjectKeyIdentifier.h"
#include "OID.h"
#include "Buffer.h"

#include "ASN1Helper.h"
#include "PKIX1Implicit88.h"
#include "PKIX1Explicit88.h"
#include "ToolkitUtils.h"

#include <boost/scoped_array.hpp>
#include <iostream>


struct CPKIFSubjectKeyIdentifierImpl
{
    CPKIFBufferPtr m_keyID;
    CPKIFBufferPtr m_value;
    bool m_extModified;
};


char CPKIFSubjectKeyIdentifier::extOID[] =      "2.5.29.14";

CPKIFSubjectKeyIdentifier::CPKIFSubjectKeyIdentifier()
  :m_impl (new CPKIFSubjectKeyIdentifierImpl)
{
}

CPKIFBufferPtr CPKIFSubjectKeyIdentifier::KeyIdentifier() const 
{
    return m_impl->m_keyID;
}
void CPKIFSubjectKeyIdentifier::SetKeyIdentifier(CPKIFBufferPtr &skid) 
{
    m_impl->m_keyID = skid;
    m_impl->m_extModified = true;
}
//CPKIFSubjectKeyIdentifier::CPKIFSubjectKeyIdentifier(
//  //! [in] Reference to an internal structure representation of the extension containing information 
//  //! used to construct the object
//  const CACX509V3Extension& ext) 
//  : CPKIFX509Extension(ext), m_impl (new CPKIFSubjectKeyIdentifierImpl)
//{
//  CACASNWRAPPER_CREATE(CACX509V3SubjectKeyIdentifier, objPDU);
//  objPDU.Decode(ext.extnValue.data, ext.extnValue.numocts);
//
//  CPKIFBufferPtr tmpBP(new CPKIFBuffer(objPDU->data, objPDU->numocts));
//  m_impl->m_keyID = tmpBP;
//}

CPKIFSubjectKeyIdentifier::CPKIFSubjectKeyIdentifier(
    const bool& criticality, const CPKIFBufferPtr& ext) 
  : CPKIFX509Extension (criticality, ext), m_impl (new CPKIFSubjectKeyIdentifierImpl)
{
    CACASNWRAPPER_CREATE(CACX509V3SubjectKeyIdentifier, objPDU);
    objPDU.Decode(ext->GetBuffer(), ext->GetLength());

    CPKIFBufferPtr tmpBP(new CPKIFBuffer(objPDU->data, objPDU->numocts));
    m_impl->m_keyID = tmpBP;

    m_impl->m_value = ext;
    m_impl->m_extModified = false;
}

CPKIFSubjectKeyIdentifier::~CPKIFSubjectKeyIdentifier()
{
    if(m_impl)
    {
        delete m_impl;
        m_impl = 0;
    }
}

const CPKIFOIDPtr CPKIFSubjectKeyIdentifier::oid() const
{
    //added static variable for copying instead of string creation each call
    static CPKIFOID staticOID(extOID);
    //CPKIFOIDPtr tmp(new CPKIFOID(new std::string(extOID)));
    static CPKIFOIDPtr tmp(new CPKIFOID(staticOID));
    return tmp;
}

CPKIFBufferPtr CPKIFSubjectKeyIdentifier::value() const 
{
    if(m_impl->m_value == (CPKIFBuffer*)NULL || m_impl->m_extModified)
    {
        CACASNWRAPPER_CREATE(CACX509V3SubjectKeyIdentifier, objPDU);    
        CACX509V3SubjectKeyIdentifier ext;
        memset(&ext, 0, sizeof(CACX509V3SubjectKeyIdentifier));

        ext.data = new unsigned char[m_impl->m_keyID->GetLength()];
        memcpy((void*)ext.data, m_impl->m_keyID->GetBuffer(), m_impl->m_keyID->GetLength());
        ext.numocts = m_impl->m_keyID->GetLength();


        ASN1OpenType* extEncoded = NULL;
        extEncoded = objPDU.Encode(&ext);

        CPKIFBufferPtr tmp(new CPKIFBuffer(extEncoded->data, extEncoded->numocts));
        
        m_impl->m_value = tmp;
        m_impl->m_extModified = false;
        if(extEncoded)
            delete extEncoded;

        if(ext.data)
            delete [] ext.data;
    }

    return m_impl->m_value;
}

CAC_API std::ostream& operator<<(std::ostream & os, const CPKIFSubjectKeyIdentifierPtr & skid)
{
    return operator<<(os,*skid);
}

CAC_API std::ostream& operator<<(std::ostream & os, const CPKIFSubjectKeyIdentifier & skid)
{

    CPKIFBufferPtr kidBuf = skid.KeyIdentifier();
    if(!kidBuf) return os << "(null)";
    boost::scoped_array<char> buf(new char[2*kidBuf->GetLength()+1]);
    btoa((char*)kidBuf->GetBuffer(), buf.get(), kidBuf->GetLength());
    return os << buf.get();
}