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146 lines
5.2 KiB
146 lines
5.2 KiB
// CertificateExtensions..cpp -- Certificate Extensions class
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// (c) Copyright Schlumberger Technology Corp., unpublished work, created
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// 2001. This computer program includes Confidential, Proprietary
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// Information and is a Trade Secret of Schlumberger Technology Corp. All
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// use, disclosure, and/or reproduction is prohibited unless authorized
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// in writing. All Rights Reserved.
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#include <scuOsExc.h>
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#include <scuArrayP.h>
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#include "CertificateExtensions.h"
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using namespace std;
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/////////////////////////// LOCAL/HELPER /////////////////////////////////
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/////////////////////////// PUBLIC /////////////////////////////////
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// Types
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// C'tors/D'tors
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CertificateExtensions::CertificateExtensions(Blob const &rblbCertificate)
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: m_pCertCtx(CertCreateCertificateContext(X509_ASN_ENCODING |
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PKCS_7_ASN_ENCODING,
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rblbCertificate.data(),
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rblbCertificate.size()))
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{
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if (!m_pCertCtx)
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throw scu::OsException(GetLastError());
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}
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CertificateExtensions::~CertificateExtensions()
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{
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try
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{
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if (m_pCertCtx)
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{
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CertFreeCertificateContext(m_pCertCtx);
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m_pCertCtx = 0;
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}
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}
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catch (...)
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{
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}
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}
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// Operators
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// Operations
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// Access
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// Predicates
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bool
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CertificateExtensions::HasEKU(char *szOID)
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{
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bool fFound = false;
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CERT_EXTENSION *pExtension = NULL;
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DWORD cbSize = 0;
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DWORD dwIndex = 0;
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CERT_ENHKEY_USAGE *pEnhKeyUsage=NULL;
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if (m_pCertCtx->pCertInfo)
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{
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//find the EKU extension
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pExtension =CertFindExtension(szOID_ENHANCED_KEY_USAGE,
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m_pCertCtx->pCertInfo->cExtension,
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m_pCertCtx->pCertInfo->rgExtension);
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if(pExtension)
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{
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if(CryptDecodeObject(X509_ASN_ENCODING,
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X509_ENHANCED_KEY_USAGE,
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pExtension->Value.pbData,
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pExtension->Value.cbData,
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0,
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NULL,
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&cbSize))
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{
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scu::AutoArrayPtr<BYTE> aabEKU(new BYTE[cbSize]);
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pEnhKeyUsage=reinterpret_cast<CERT_ENHKEY_USAGE *>(aabEKU.Get());
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if(pEnhKeyUsage)
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{
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if(CryptDecodeObject(X509_ASN_ENCODING,
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X509_ENHANCED_KEY_USAGE,
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pExtension->Value.pbData,
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pExtension->Value.cbData,
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0,
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aabEKU.Get(),
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&cbSize))
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{
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for(dwIndex=0; dwIndex < pEnhKeyUsage->cUsageIdentifier; dwIndex++)
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{
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if(0 == strcmp(szOID,
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(pEnhKeyUsage->rgpszUsageIdentifier)[dwIndex]))
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{
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//we find it
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fFound=TRUE;
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break;
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}
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}
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}
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}
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}
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}
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}
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/*
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PCERT_INFO const pCertInfo = m_pCertCtx->pCertInfo;
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for (DWORD dwExtension = 0;
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!fFound && (dwExtension < pCertInfo->cExtension);
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dwExtension++)
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{
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PCERT_EXTENSION const pCertExt =
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&pCertInfo->rgExtension[dwExtension];
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if (0 == strcmp(pCertExt->pszObjId, rsExt.c_str()))
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fFound = true;
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}
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*/
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return fFound;
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}
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// Static Variables
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/////////////////////////// PROTECTED /////////////////////////////////
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// C'tors/D'tors
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// Operators
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// Operations
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// Access
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// Predicates
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// Static Variables
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/////////////////////////// PRIVATE /////////////////////////////////
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// C'tors/D'tors
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// Operators
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// Operations
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// Access
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// Predicates
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// Static Variables
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