CAXMLPriceCert.cpp

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/*
Copyright (c) 2000, The JAP-Team 
All rights reserved.
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are permitted provided that the following conditions are met:

  - Redistributions of source code must retain the above copyright notice, 
    this list of conditions and the following disclaimer.

  - Redistributions in binary form must reproduce the above copyright notice, 
    this list of conditions and the following disclaimer in the documentation and/or 
    other materials provided with the distribution.

  - Neither the name of the University of Technology Dresden, Germany nor the names of its contributors 
    may be used to endorse or promote products derived from this software without specific 
    prior written permission. 

  
THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS ``AS IS'' AND ANY EXPRESS 
OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY 
AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS
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*/
#include "StdAfx.h"
#ifndef ONLY_LOCAL_PROXY
#ifdef PAYMENT
#include "CAXMLPriceCert.hpp"
#include "CAUtil.hpp"
#include "CAMsg.hpp"

const char* const CAXMLPriceCert::ms_pStrElemName="PriceCertificate";

CAXMLPriceCert::CAXMLPriceCert()
  {
    m_StrSubjectKeyIdentifier = NULL;
    m_StrSignatureTime = NULL;
    m_StrBiID = NULL;
    m_domDocument = NULL; 
  }

CAXMLPriceCert::~CAXMLPriceCert()
  {
    delete[] m_StrSubjectKeyIdentifier;
    m_StrSubjectKeyIdentifier = NULL;
    
    delete[] m_StrSignatureTime;
    m_StrSignatureTime = NULL;
    
    delete[] m_StrBiID;
    m_StrBiID = NULL;
    
    if(m_domDocument != NULL)
    {
      //CAMsg::printMsg(LOG_DEBUG, "cleaning up internal PriceCert document 0x%x.\n",
      //          m_domDocument);
      m_domDocument->release();
      m_domDocument=NULL; 
    }   
  }

CAXMLPriceCert* CAXMLPriceCert::getInstance(const UINT8 * strXmlData,UINT32 strXmlDataLen)
{
  // parse XML
  if(strXmlData==NULL)
    return NULL;
  CAXMLPriceCert* pPC=new CAXMLPriceCert();
  pPC->m_domDocument = parseDOMDocument(strXmlData, strXmlDataLen);
  if(pPC->setValues()!=E_SUCCESS)
    {
      delete pPC;
      pPC = NULL;
    }
  return pPC; 
}

CAXMLPriceCert* CAXMLPriceCert::getInstance(DOMElement* elemRoot)
  {
    if(elemRoot==NULL)
      {
        CAMsg::printMsg(LOG_DEBUG,"CAXMLPriceCert::getInstance: root element is null\n");
        return NULL;
      } 
    CAXMLPriceCert* pPC=new CAXMLPriceCert();
    pPC->m_domDocument=createDOMDocument();
    pPC->m_domDocument->appendChild(pPC->m_domDocument->importNode(elemRoot,true));
    if(pPC->setValues()!=E_SUCCESS)
      {
        delete pPC;
        pPC = NULL;
        CAMsg::printMsg(LOG_DEBUG,"CAXMLPriceCert::getInstance.setValues() FAILED \n");
      }
    return pPC; 
  }

SINT32 CAXMLPriceCert::toXmlElement(XERCES_CPP_NAMESPACE::DOMDocument* a_doc, DOMElement* &elemRoot)
  {
    elemRoot = createDOMElement(a_doc,"PriceCertificate");
  
    setDOMElementAttribute(elemRoot,"version",(UINT8*)"1.1"); 

    DOMElement* elemHashOfMixCert = createDOMElement(a_doc,"SubjectKeyIdentifier");
    setDOMElementValue(elemHashOfMixCert,m_StrSubjectKeyIdentifier);
    elemRoot->appendChild(elemHashOfMixCert);
  
    DOMElement* elemRate = createDOMElement(a_doc,"Rate");
    setDOMElementValue(elemRate,m_lRate);
    elemRoot->appendChild(elemRate);
  
    DOMElement* elemCreationTime = createDOMElement(a_doc,"SignatureTime");
    setDOMElementValue(elemCreationTime,m_StrSignatureTime);
    elemRoot->appendChild(elemCreationTime);
  
    DOMElement* elemBiID = createDOMElement(a_doc,"BiID");
    setDOMElementValue(elemBiID,m_StrBiID);
    elemRoot->appendChild(elemBiID);
  
    //append signature node
    if (m_signature != NULL)
    {     
      elemRoot->appendChild(a_doc->importNode(m_signature,true));
    }
    else
      {
        CAMsg::printMsg(LOG_DEBUG,"Could not import PI signature node!\n");
      }
    return E_SUCCESS;
  }

SINT32 CAXMLPriceCert::setValues() 
{
  CAMsg::printMsg(LOG_DEBUG,"Parsing price certificate.\n");

  if(m_domDocument==NULL)
  {
    CAMsg::printMsg(LOG_CRIT,"Price certificate is no valid document!\n");
    return E_UNKNOWN;
  }
  DOMElement* elemRoot=m_domDocument->getDocumentElement();
  DOMElement* elem=NULL;
  
  if(!equals(elemRoot->getTagName(),ms_pStrElemName))
    {
      CAMsg::printMsg(LOG_CRIT,"Failed to get root elem tagname of price certificate!\n");
      return E_UNKNOWN;
    }
  //TODO: parsing Strings could be generalized instead of copy-and-paste code for each element
  UINT8 strGeneral[512];
  UINT32 strGeneralLen = 512;
  // parse subjectkeyidentifier(UINT8*)
  delete[] m_StrSubjectKeyIdentifier;
  m_StrSubjectKeyIdentifier=NULL;

  getDOMChildByName(elemRoot, "SubjectKeyIdentifier", elem, false);
  if(getDOMElementValue(elem, strGeneral, &strGeneralLen)==E_SUCCESS)
    {
      m_StrSubjectKeyIdentifier = new UINT8[strGeneralLen+1];
      memcpy(m_StrSubjectKeyIdentifier, strGeneral,strGeneralLen+1);
      //CAMsg::printMsg(LOG_DEBUG,"setValues(): parsing subjectkeyidentifier OK\n");
    }
  else
    {
      delete[] m_StrSubjectKeyIdentifier;
      m_StrSubjectKeyIdentifier=NULL;
      CAMsg::printMsg(LOG_CRIT,"Failed to parse subjectkeyidentifier of price certificate!\n");
      return E_UNKNOWN;
    }
  
  // parse rate (double)
  getDOMChildByName(elemRoot, "Rate", elem, false);
  if(getDOMElementValue(elem, &m_lRate)!=E_SUCCESS)
  {
    CAMsg::printMsg(LOG_CRIT,"Could not parse rate of price certificate!\n");
    return E_UNKNOWN;
  }
  



  // parse creation time (UINT8*)
  delete[] m_StrSignatureTime;
  m_StrSignatureTime=NULL;
  getDOMChildByName(elemRoot, "SignatureTime", elem, false);
  
  if(getDOMElementValue(elem, strGeneral, &strGeneralLen)==E_SUCCESS)
    {
      m_StrSignatureTime = new UINT8[strGeneralLen+1];
      memcpy(m_StrSignatureTime, strGeneral,strGeneralLen+1);
    }
  else
    {
      delete[] m_StrSignatureTime;
      m_StrSignatureTime=NULL;
      CAMsg::printMsg(LOG_CRIT,"Could not parse SignatureTime of price certificate!\n");
      return E_UNKNOWN;
    }
  
  UINT8 strGeneral2[512];
  UINT32 strGeneralLen2 = 512;  
  
  // parse BiID (UINT8*)
  delete[] m_StrBiID;
  m_StrBiID=NULL;
  getDOMChildByName(elemRoot, "BiID", elem, false);
  if(getDOMElementValue(elem, strGeneral2, &strGeneralLen2)==E_SUCCESS)
    {
      m_StrBiID = new UINT8[strGeneralLen2+1];
      memcpy(m_StrBiID, strGeneral2,strGeneralLen2+1);
    }
  else
    {
      delete[] m_StrBiID;
      m_StrBiID=NULL;
      CAMsg::printMsg(LOG_CRIT,"Could not parse parse BiID of price certificate!\n");
      return E_UNKNOWN;
    }
    
    
  //if present, store signature node as element 
  getDOMChildByName(elemRoot, "Signature", m_signature, true);
  //returns E_UNKNOWN if no signature node present, right now we dont care 
  
  
  
    
  
  //CAMsg::printMsg(LOG_DEBUG,"setValues(): finished\n");
  return E_SUCCESS;
}


#endif //PAYMENT
#endif //ONLY_LOCAL_PROXY