CACContentInfo.cpp

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#include "ContentInfo.h"

#include "PKIFMessageException.h"
#include "ASN1Helper.h"
#include "CryptographicMessageSyntax2004.h"
#include "ToolkitUtils.h"
#include "PKIFMessageErrors.h"

#include "OID.h"
#include "Buffer.h"
#include "PKIFBase64.h"

struct CPKIFContentInfoImpl
{
    CPKIFOIDPtr m_contentType;
    CPKIFBufferPtr m_content;
};

CPKIFContentInfo::CPKIFContentInfo()
    :m_impl (new CPKIFContentInfoImpl)
{
    LOG_STRING_DEBUG("CPKIFContentInfo::CPKIFContentInfo()", TOOLKIT_MESSAGE_CONTENT_INFO, 0, this);
    SetContentType(g_contentInfo);
}
CPKIFContentInfo::~CPKIFContentInfo()
{
    LOG_STRING_DEBUG("CPKIFContentInfo::~CPKIFContentInfo()", TOOLKIT_MESSAGE_CONTENT_INFO, 0, this);

    delete m_impl;
    m_impl = NULL;
}


CPKIFContentInfo::CPKIFContentInfo(
    const CPKIFOIDPtr& oid,
    //CACCMSContentInfo& ci)
    const CPKIFBufferPtr& ciBuf)
    :m_impl (new CPKIFContentInfoImpl)
{
    LOG_STRING_DEBUG("CPKIFContentInfo::CPKIFContentInfo(CACCMSContentInfo& ci)", TOOLKIT_MESSAGE_CONTENT_INFO, 0, this);

    m_impl->m_contentType = oid;
    m_impl->m_content = ciBuf;
}

/*CPKIFContentInfo::CPKIFContentInfo(
    CACCMSContentInfo& ci)
    :m_impl (new CPKIFContentInfoImpl)
{
    LOG_STRING_DEBUG("CPKIFContentInfo::CPKIFContentInfo(CACCMSContentInfo& ci)", TOOLKIT_MESSAGE_CONTENT_INFO, 0, this);

    CPKIFOIDPtr tmpOID(new CPKIFOID(ci.contentType));
    m_impl->m_contentType = tmpOID;

    CPKIFBufferPtr tmpBuf(new CPKIFBuffer(ci.content.data, ci.content.numocts));
    m_impl->m_content = tmpBuf;
}
*/
void CPKIFContentInfo::SetContentType(
    CPKIFOIDPtr& contentType) 
{
    m_impl->m_contentType = contentType;
}
CPKIFOIDPtr CPKIFContentInfo::GetContentType() const 
{
    return m_impl->m_contentType;
}
void CPKIFContentInfo::SetContent(
    CPKIFBufferPtr& content) 
{
    m_impl->m_content = content;
}
CPKIFBufferPtr CPKIFContentInfo::GetContent() const 
{
    return m_impl->m_content;
}
void CPKIFContentInfo::Decode(
    const unsigned char* buf,
    int bufLen)
{
    LOG_STRING_DEBUG("CPKIFContentInfo::Decode(const unsigned char* buf, int bufLen)", TOOLKIT_MESSAGE_CONTENT_INFO, 0, this);

    //if the input is empty - fail now
    if(NULL == buf || 0 == bufLen)
    {
        throw CPKIFMessageException(thisComponent, COMMON_INVALID_INPUT, "NULL parameter passed to CPKIFContentInfo::Decode");
    }

    try
    {
        //otherwise, try to parse (the decode function may throw)
        CPKIFASNWrapper<CACCMSContentInfo> cmsMsg(BEREncCACCMSContentInfo, BERDecCACCMSContentInfo);
        cmsMsg.Decode(buf, bufLen);

        //if we get here then all was well, save the pieces
        CPKIFOIDPtr tmpOID(new CPKIFOID(cmsMsg->contentType.subid, cmsMsg->contentType.numids));

        //added 3/26/2004
        //commented out 2/20/2006 - new ASN.1 compiler does not exhibit the same behavior
        //const unsigned char* bufEnd = buf + bufLen;
        //const unsigned char* parsedEnd = cmsMsg->content.data + cmsMsg->content.numocts;
        //if(bufEnd < parsedEnd)
        //  throw CPKIFMessageException(thisComponent, MSG_DECODE_FAILED);

        CPKIFBufferPtr tmp(new CPKIFBuffer(cmsMsg->content.data, cmsMsg->content.numocts));

        //then assign them to the members
        m_impl->m_contentType = tmpOID;
        m_impl->m_content = tmp;
    }
    catch(CPKIFException& e)
    {
        unsigned char * decoded = NULL;
        unsigned long decodedLen;
        bool b = PEMDecode((char *)buf, &decoded, &decodedLen);
        if(b)
        {
            try
            {
                CPKIFASNWrapper<CACCMSContentInfo> cmsMsg(BEREncCACCMSContentInfo, BERDecCACCMSContentInfo);
                cmsMsg.Decode(decoded, decodedLen);

                //if we get here then all was well, save the pieces
                CPKIFOIDPtr tmpOID(new CPKIFOID(cmsMsg->contentType.subid, cmsMsg->contentType.numids));

                CPKIFBufferPtr tmp(new CPKIFBuffer(cmsMsg->content.data, cmsMsg->content.numocts));

                //then assign them to the members
                m_impl->m_contentType = tmpOID;
                m_impl->m_content = tmp;

                if(NULL != decoded)
                    delete decoded;

            }catch(CPKIFException& e)
            {
                if(NULL != decoded)
                    delete decoded;

                CPKIFMessageException me(thisComponent, MSG_DECODE_FAILED);
                me.push_info(e);
                //delete e;
                throw me;
            }
        }
        else
        {
            if(NULL != decoded)
                delete decoded;

            CPKIFMessageException me(thisComponent, MSG_DECODE_FAILED);
            me.push_info(e);
            //delete e;
            throw me;
        }
    }
}
void CPKIFContentInfo::Decode(
    CPKIFBufferPtr& buf)
{
    if(buf == (CPKIFBuffer*)NULL)
    {
        throw CPKIFMessageException(thisComponent, COMMON_INVALID_INPUT, "NULL parameter passed to CPKIFContentInfo::Decode");
    }

    Decode(buf->GetBuffer(), buf->GetLength());
}
CPKIFBufferPtr CPKIFContentInfo::Encode()
{
    LOG_STRING_DEBUG("CPKIFContentInfo::Encode()", TOOLKIT_MESSAGE_CONTENT_INFO, 0, this);

    //if we don't have a content OID and content then fail
    if(m_impl->m_contentType == (CPKIFOID*)NULL || m_impl->m_content == (CPKIFBuffer*)NULL)
    {
        throw CPKIFMessageException(thisComponent, MSG_INCOMPLETE);
    }

    //otherwise create a content info object
    CACCMSContentInfo cmsMsg;

    //set the object to point to existing stuff
    CPKIFStringPtr str(new std::string(m_impl->m_contentType->ToString())); 
    ASN1OBJID* tmpOid = ConvertStringToASN1OBJID(str);
    CopyOID(&cmsMsg.contentType, tmpOid);

    if(NULL != tmpOid)
        delete tmpOid;
    //cmsMsg.contentType = *m_impl->m_contentType->raw();
    //cmsMsg.contentType = *tmpOid;
    cmsMsg.content.data = m_impl->m_content->GetBuffer();
    cmsMsg.content.numocts = m_impl->m_content->GetLength();

    ASN1OpenType* data = NULL;

    try
    {
        //encode the message
        CACASNWRAPPER_CREATE(CACCMSContentInfo, objPDU);
        data = objPDU.Encode(&cmsMsg);

        //return a CPKIFBufferPtr containing the encoded message
        CPKIFBufferPtr tmp(new CPKIFBuffer(data->data, data->numocts));
        delete data;
        return tmp;
    }
    catch(CPKIFException& e)
    {
        CPKIFMessageException me(thisComponent, MSG_ENCODE_FAILED);
        me.push_info(e);
        //delete e;
        throw me;
    }
}