ExtendedKeyUsage.cpp

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#include "ExtendedKeyUsage.h"
#include "OID.h"
#include "Buffer.h"

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

#include <iostream>

using namespace std;


struct CPKIFExtendedKeyUsageImpl
{
    vector<CPKIFOIDPtr> m_keyPurposeIDs;
    CPKIFBufferPtr m_value;
    bool m_extModified;
};


char CPKIFExtendedKeyUsage::extOID[] =          "2.5.29.37";

CPKIFExtendedKeyUsage::CPKIFExtendedKeyUsage()
  :m_impl (new CPKIFExtendedKeyUsageImpl)
{
}
//CPKIFExtendedKeyUsage::CPKIFExtendedKeyUsage(
//  //! [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 CPKIFExtendedKeyUsageImpl)
//{
//  CACASNWRAPPER_CREATE(CACX509V3ExtKeyUsageSyntax, objPDU);
//  CACX509V3ExtKeyUsageSyntax* eku = objPDU.Decode(ext.extnValue.data, ext.extnValue.numocts);
//  
//  DListNode* cur = eku->head;
//  for(unsigned int ii = 0; ii < eku->count; ++ii)
//  {
//      CPKIFOIDPtr tmpGN(new CPKIFOID((*(ASN1OBJID*)cur->data).subid, (*(ASN1OBJID*)cur->data).numids));
//      m_impl->m_keyPurposeIDs.push_back(tmpGN);
//
//      cur = cur->next;
//  }
//}

CPKIFExtendedKeyUsage::CPKIFExtendedKeyUsage(const bool& criticality, const CPKIFBufferPtr& ext)
  : CPKIFX509Extension (criticality, ext), m_impl (new CPKIFExtendedKeyUsageImpl)
{
    CACASNWRAPPER_CREATE(CACX509V3ExtKeyUsageSyntax, objPDU);
    CACX509V3ExtKeyUsageSyntax* eku = objPDU.Decode(ext->GetBuffer(), ext->GetLength());
    
    DListNode* cur = eku->head;
    for(unsigned int ii = 0; ii < eku->count; ++ii)
    {
        CPKIFOIDPtr tmpGN(new CPKIFOID((*(ASN1OBJID*)cur->data).subid, (*(ASN1OBJID*)cur->data).numids));
        m_impl->m_keyPurposeIDs.push_back(tmpGN);

        cur = cur->next;
    }

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

CPKIFExtendedKeyUsage::~CPKIFExtendedKeyUsage()
{
    if(m_impl)
    {
        delete m_impl;
        m_impl = 0;
    }
}
const CPKIFOIDPtr CPKIFExtendedKeyUsage::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;
}

void CPKIFExtendedKeyUsage::KeyPurposeIDs(
    vector<CPKIFOIDPtr>& keyPurposeIDs)
{
    keyPurposeIDs.clear();

    vector<CPKIFOIDPtr>::const_iterator pos;
    vector<CPKIFOIDPtr>::const_iterator end = m_impl->m_keyPurposeIDs.end();
    for(pos = m_impl->m_keyPurposeIDs.begin(); pos != end; ++pos)
    {
        keyPurposeIDs.push_back(*pos);
    }
}
CPKIFBufferPtr CPKIFExtendedKeyUsage::value() const 
{
    CPKIFBufferPtr rv = m_impl->m_value;
    if(m_impl->m_value == (CPKIFBuffer*)NULL || m_impl->m_extModified)
    {
        //XXX ENCODE HERE and set rv if necessary 
    }

    return rv;
}

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

CAC_API std::ostream& operator<<(std::ostream & os, const CPKIFExtendedKeyUsage & extension)
{
    bool output = false;
    vector<CPKIFOIDPtr> ekus;
    // cast off const-ness for this getter
    const_cast<CPKIFExtendedKeyUsage &>(extension).KeyPurposeIDs(ekus);

    vector<CPKIFOIDPtr>::iterator pos;
    vector<CPKIFOIDPtr>::iterator end = ekus.end();
    for(pos = ekus.begin(); pos != end; ++pos)
    {
        if(output) os << endl;
        output = true;
        if(0 == strcmp((*pos)->ToString(), "1.3.6.1.5.5.7.3.1"))
        {
            os << "Web server authentication ";
        }
        else if(0 == strcmp((*pos)->ToString(), "1.3.6.1.5.5.7.3.2"))
        {
            os << "Web client authentication ";
        }
        else if(0 == strcmp((*pos)->ToString(), "1.3.6.1.5.5.7.3.3"))
        {
            os << "Code signing ";
        }
        else if(0 == strcmp((*pos)->ToString(), "1.3.6.1.5.5.7.3.4"))
        {
            os << "E-mail protection ";
        }
        else if(0 == strcmp((*pos)->ToString(), "1.3.6.1.5.5.7.3.8"))
        {
            os << "Timestamp Signing ";
        }
        else if(0 == strcmp((*pos)->ToString(), "1.3.6.1.5.5.7.3.9"))
        {
            os << "OCSP Signing ";
        }
        else
        {
            os << (*pos)->ToString();
        }
    }
    return os;
}