Source code of Windows XP (NT5)
You can not select more than 25 topics Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
 
 
 
 
 
 

741 lines
14 KiB

//+--------------------------------------------------------------------------
//
// Microsoft Windows
// Copyright (C) Microsoft Corporation, 1996 - 1999
//
// File: ext.cpp
//
// Contents: Cert Server Database interface implementation
//
//---------------------------------------------------------------------------
#include <pch.cpp>
#pragma hdrstop
#include <certdb.h>
#include "csdisp.h"
#include "column.h"
#include "attrib.h"
#include "ext.h"
#include "row.h"
#include "view.h"
#if DBG_CERTSRV
LONG g_cCertViewExtension;
LONG g_cCertViewExtensionTotal;
#endif
CEnumCERTVIEWEXTENSION::CEnumCERTVIEWEXTENSION()
{
DBGCODE(InterlockedIncrement(&g_cCertViewExtension));
DBGCODE(InterlockedIncrement(&g_cCertViewExtensionTotal));
m_pvw = NULL;
m_aelt = NULL;
m_cRef = 1;
}
CEnumCERTVIEWEXTENSION::~CEnumCERTVIEWEXTENSION()
{
DBGCODE(InterlockedDecrement(&g_cCertViewExtension));
#if DBG_CERTSRV
if (m_cRef > 1)
{
DBGPRINT((
DBG_SS_CERTVIEWI,
"%hs has %d instances left over\n",
"CEnumCERTVIEWEXTENSION",
m_cRef));
}
#endif
if (NULL != m_aelt)
{
LocalFree(m_aelt);
m_aelt = NULL;
}
if (NULL != m_pvw)
{
m_pvw->Release();
m_pvw = NULL;
}
}
HRESULT
CEnumCERTVIEWEXTENSION::Open(
IN LONG RowId,
IN LONG Flags,
IN ICertView *pvw)
{
HRESULT hr;
if (NULL == pvw)
{
hr = E_POINTER;
_JumpError(hr, error, "NULL parm");
}
m_RowId = RowId;
m_Flags = Flags;
m_pvw = pvw;
m_pvw->AddRef();
if (0 != Flags)
{
hr = E_INVALIDARG;
_JumpError(hr, error, "Flags");
}
hr = Reset();
_JumpIfError2(hr, error, "Reset", S_FALSE);
error:
return(hr);
}
STDMETHODIMP
CEnumCERTVIEWEXTENSION::Next(
/* [out, retval] */ LONG *pIndex)
{
HRESULT hr;
DWORD celt;
CERTTRANSBLOB ctbExtensions;
ctbExtensions.pb = NULL;
if (NULL == pIndex)
{
hr = E_POINTER;
_JumpError(hr, error, "NULL parm");
}
*pIndex = -1;
if (m_ieltCurrent + 1 >= m_celtCurrent && !m_fNoMore)
{
hr = ((CCertView *) m_pvw)->EnumAttributesOrExtensions(
m_RowId,
CDBENUM_EXTENSIONS,
NULL == m_aelt?
NULL :
m_aelt[m_ieltCurrent].pwszName,
CEXT_CHUNK,
&celt,
&ctbExtensions);
if (S_FALSE == hr)
{
m_fNoMore = TRUE;
}
else
{
_JumpIfError(hr, error, "EnumAttributesOrExtensions");
}
hr = _SaveExtensions(celt, &ctbExtensions);
_JumpIfError(hr, error, "_SaveExtensions");
m_ieltCurrent = -1;
m_celtCurrent = celt;
}
if (m_ieltCurrent + 1 >= m_celtCurrent)
{
hr = S_FALSE;
goto error;
}
m_ielt++;
m_ieltCurrent++;
*pIndex = m_ielt;
m_fNoCurrentRecord = FALSE;
hr = S_OK;
error:
if (NULL != ctbExtensions.pb)
{
CoTaskMemFree(ctbExtensions.pb);
}
return(_SetErrorInfo(hr, L"CEnumCERTVIEWEXTENSION::Next"));
}
HRESULT
CopyMarshalledString(
IN CERTTRANSBLOB const *pctb,
IN ULONG obwsz,
IN BYTE *pbEnd,
IN BYTE **ppbNext,
OUT WCHAR **ppwszOut)
{
HRESULT hr;
*ppwszOut = NULL;
if (0 != obwsz)
{
WCHAR *pwsz;
WCHAR *pwszEnd;
WCHAR *pwszT;
DWORD cb;
pwsz = (WCHAR *) Add2Ptr(pctb->pb, obwsz);
pwszEnd = &((WCHAR *) pctb->pb)[pctb->cb / sizeof(WCHAR)];
for (pwszT = pwsz; ; pwszT++)
{
if (pwszT >= pwszEnd)
{
hr = HRESULT_FROM_WIN32(ERROR_INVALID_DATA);
_JumpError(hr, error, "bad marshalled data");
}
if (L'\0' == *pwszT)
{
break;
}
}
cb = (SAFE_SUBTRACT_POINTERS(pwszT, pwsz) + 1) * sizeof(WCHAR);
if (&(*ppbNext)[DWORDROUND(cb)] > pbEnd)
{
hr = HRESULT_FROM_WIN32(ERROR_BUFFER_OVERFLOW);
_JumpError(hr, error, "bad marshalled data");
}
CopyMemory(*ppbNext, pwsz, cb);
*ppwszOut = (WCHAR *) *ppbNext;
*ppbNext += DWORDROUND(cb);
}
hr = S_OK;
error:
return(hr);
}
HRESULT
CopyMarshalledBlob(
IN CERTTRANSBLOB const *pctb,
IN DWORD cbValue,
IN ULONG obValue,
IN BYTE *pbEnd,
IN BYTE **ppbNext,
OUT DWORD *pcbOut,
OUT BYTE **ppbOut)
{
HRESULT hr;
*pcbOut = 0;
*ppbOut = NULL;
if (0 != obValue)
{
BYTE *pb;
pb = (BYTE *) Add2Ptr(pctb->pb, obValue);
if (&pb[cbValue] > &pctb->pb[pctb->cb])
{
hr = HRESULT_FROM_WIN32(ERROR_INVALID_DATA);
_JumpError(hr, error, "bad marshalled data");
}
if (&(*ppbNext)[DWORDROUND(cbValue)] > pbEnd)
{
hr = HRESULT_FROM_WIN32(ERROR_BUFFER_OVERFLOW);
_JumpError(hr, error, "bad marshalled data");
}
CopyMemory(*ppbNext, pb, cbValue);
*pcbOut = cbValue;
*ppbOut = *ppbNext;
*ppbNext += DWORDROUND(cbValue);
}
hr = S_OK;
error:
return(hr);
}
HRESULT
CEnumCERTVIEWEXTENSION::_SaveExtensions(
IN DWORD celt,
IN CERTTRANSBLOB const *pctbExtensions)
{
HRESULT hr;
DWORD cbNew;
CERTDBEXTENSION *peltNew = NULL;
CERTDBEXTENSION *pelt;
CERTTRANSDBEXTENSION *ptelt;
CERTTRANSDBEXTENSION *pteltEnd;
BYTE *pbNext;
BYTE *pbEnd;
if (NULL == pctbExtensions)
{
hr = E_POINTER;
_JumpError(hr, error, "NULL parm");
}
cbNew = pctbExtensions->cb + celt * (sizeof(*pelt) - sizeof(*ptelt));
peltNew = (CERTDBEXTENSION *) LocalAlloc(LMEM_FIXED | LMEM_ZEROINIT, cbNew);
if (NULL == peltNew)
{
hr = E_OUTOFMEMORY;
_JumpError(hr, error, "LocalAlloc");
}
pteltEnd = &((CERTTRANSDBEXTENSION *) pctbExtensions->pb)[celt];
if ((BYTE *) pteltEnd > &pctbExtensions->pb[pctbExtensions->cb])
{
hr = HRESULT_FROM_WIN32(ERROR_INVALID_DATA);
_JumpError(hr, error, "bad marshalled data");
}
pelt = peltNew;
pbNext = (BYTE *) &peltNew[celt];
pbEnd = (BYTE *) Add2Ptr(peltNew, cbNew);
for (ptelt = (CERTTRANSDBEXTENSION *) pctbExtensions->pb;
ptelt < pteltEnd;
ptelt++, pelt++)
{
pelt->ExtFlags = ptelt->ExtFlags;
hr = CopyMarshalledString(
pctbExtensions,
ptelt->obwszName,
pbEnd,
&pbNext,
&pelt->pwszName);
_JumpIfError(hr, error, "CopyMarshalledString");
hr = CopyMarshalledBlob(
pctbExtensions,
ptelt->cbValue,
ptelt->obValue,
pbEnd,
&pbNext,
&pelt->cbValue,
&pelt->pbValue);
_JumpIfError(hr, error, "CopyMarshalledBlob");
}
CSASSERT(pbNext == pbEnd);
if (NULL != m_aelt)
{
LocalFree(m_aelt);
}
m_aelt = peltNew;
peltNew = NULL;
hr = S_OK;
error:
if (NULL != peltNew)
{
LocalFree(peltNew);
}
return(hr);
}
HRESULT
CEnumCERTVIEWEXTENSION::_FindExtension(
OUT CERTDBEXTENSION const **ppcde)
{
HRESULT hr;
if (NULL == ppcde)
{
hr = E_POINTER;
_JumpError(hr, error, "NULL parm");
}
if (NULL == m_aelt)
{
hr = E_UNEXPECTED;
_JumpError(hr, error, "NULL m_aelt");
}
if (m_fNoCurrentRecord ||
m_ieltCurrent < 0 ||
m_ieltCurrent >= m_celtCurrent)
{
hr = E_INVALIDARG;
_JumpError(hr, error, "m_fNoCurrentRecord || m_ieltCurrent");
}
*ppcde = &m_aelt[m_ieltCurrent];
hr = S_OK;
error:
return(hr);
}
STDMETHODIMP
CEnumCERTVIEWEXTENSION::GetName(
/* [out, retval] */ BSTR *pstrOut)
{
HRESULT hr;
CERTDBEXTENSION const *pcde;
if (NULL == pstrOut)
{
hr = E_POINTER;
_JumpError(hr, error, "NULL parm");
}
hr = _FindExtension(&pcde);
_JumpIfError(hr, error, "_FindExtension");
if (!ConvertWszToBstr(pstrOut, pcde->pwszName, -1))
{
hr = E_OUTOFMEMORY;
_JumpError(hr, error, "ConvertWszToBstr");
}
error:
return(_SetErrorInfo(hr, L"CEnumCERTVIEWEXTENSION::GetName"));
}
STDMETHODIMP
CEnumCERTVIEWEXTENSION::GetFlags(
/* [out, retval] */ LONG *pFlags)
{
HRESULT hr;
CERTDBEXTENSION const *pcde;
if (NULL == pFlags)
{
hr = E_POINTER;
_JumpError(hr, error, "NULL parm");
}
hr = _FindExtension(&pcde);
_JumpIfError(hr, error, "_FindExtension");
*pFlags = pcde->ExtFlags;
error:
return(_SetErrorInfo(hr, L"CEnumCERTVIEWEXTENSION::GetFlags"));
}
STDMETHODIMP
CEnumCERTVIEWEXTENSION::GetValue(
/* [in] */ LONG Type,
/* [in] */ LONG Flags,
/* [out, retval] */ VARIANT *pvarValue)
{
HRESULT hr;
CERTDBEXTENSION const *pcde;
BYTE *pballoc = NULL;
BYTE *pbValue;
DWORD cbValue;
if (NULL == pvarValue)
{
hr = E_POINTER;
_JumpError(hr, error, "NULL parm");
}
VariantInit(pvarValue);
pvarValue->bstrVal = NULL;
CSASSERT(CV_OUT_BASE64HEADER == CRYPT_STRING_BASE64HEADER);
CSASSERT(CV_OUT_BASE64 == CRYPT_STRING_BASE64);
CSASSERT(CV_OUT_BINARY == CRYPT_STRING_BINARY);
CSASSERT(CV_OUT_BASE64REQUESTHEADER == CRYPT_STRING_BASE64REQUESTHEADER);
CSASSERT(CV_OUT_HEX == CRYPT_STRING_HEX);
CSASSERT(CV_OUT_HEXADDR == CRYPT_STRING_HEXADDR);
CSASSERT(CV_OUT_BASE64X509CRLHEADER == CRYPT_STRING_BASE64X509CRLHEADER);
CSASSERT(CV_OUT_HEXASCII == CRYPT_STRING_HEXASCII);
CSASSERT(CV_OUT_HEXASCIIADDR == CRYPT_STRING_HEXASCIIADDR);
switch (Flags)
{
case CV_OUT_BASE64HEADER:
case CV_OUT_BASE64:
case CV_OUT_BINARY:
case CV_OUT_BASE64REQUESTHEADER:
case CV_OUT_HEX:
case CV_OUT_HEXASCII:
case CV_OUT_BASE64X509CRLHEADER:
case CV_OUT_HEXADDR:
case CV_OUT_HEXASCIIADDR:
break;
default:
hr = E_INVALIDARG;
_JumpError(hr, error, "Flags");
}
hr = _FindExtension(&pcde);
_JumpIfError(hr, error, "_FindExtension");
if (0 == pcde->cbValue || NULL == pcde->pbValue)
{
hr = CERTSRV_E_PROPERTY_EMPTY;
_JumpError(hr, error, "NULL value");
}
if (PROPTYPE_BINARY == (PROPTYPE_MASK & Type))
{
pbValue = pcde->pbValue;
cbValue = pcde->cbValue;
}
else
{
hr = myDecodeExtension(
Type,
pcde->pbValue,
pcde->cbValue,
&pballoc,
&cbValue);
_JumpIfError(hr, error, "myDecodeExtension");
pbValue = pballoc;
}
if (CV_OUT_BINARY == Flags)
{
switch (PROPTYPE_MASK & Type)
{
case PROPTYPE_LONG:
CSASSERT(sizeof(LONG) == cbValue);
pvarValue->lVal = *(LONG *) pbValue;
pvarValue->vt = VT_I4;
break;
case PROPTYPE_DATE:
CSASSERT(sizeof(FILETIME) == cbValue);
hr = myFileTimeToDate(
(FILETIME const *) pbValue,
&pvarValue->date);
_JumpIfError(hr, error, "myFileTimeToDate");
pvarValue->vt = VT_DATE;
break;
case PROPTYPE_STRING:
case PROPTYPE_BINARY:
if (!ConvertWszToBstr(
&pvarValue->bstrVal,
(WCHAR const *) pbValue,
cbValue))
{
hr = E_OUTOFMEMORY;
_JumpError(hr, error, "ConvertWszToBstr");
}
pvarValue->vt = VT_BSTR;
break;
default:
hr = E_INVALIDARG;
_JumpError(hr, error, "Type");
}
}
else
{
hr = EncodeCertString(
pbValue,
cbValue,
Flags,
&pvarValue->bstrVal);
_JumpIfError(hr, error, "EncodeCertString");
pvarValue->vt = VT_BSTR;
}
error:
if (NULL != pballoc)
{
LocalFree(pballoc);
}
return(_SetErrorInfo(hr, L"CEnumCERTVIEWEXTENSION::GetValue"));
}
STDMETHODIMP
CEnumCERTVIEWEXTENSION::Skip(
/* [in] */ LONG celt)
{
HRESULT hr;
LONG ieltnew = m_ielt + celt;
if (-1 > ieltnew)
{
hr = E_INVALIDARG;
_JumpError(hr, error, "Skip back to before start");
}
m_ielt = ieltnew;
m_ieltCurrent += celt;
m_fNoCurrentRecord = TRUE;
hr = S_OK;
error:
return(_SetErrorInfo(hr, L"CEnumCERTVIEWEXTENSION::Skip"));
}
STDMETHODIMP
CEnumCERTVIEWEXTENSION::Reset(VOID)
{
HRESULT hr;
DWORD celt;
CERTTRANSBLOB ctbExtensions;
ctbExtensions.pb = NULL;
m_fNoMore = FALSE;
hr = ((CCertView *) m_pvw)->EnumAttributesOrExtensions(
m_RowId,
CDBENUM_EXTENSIONS,
NULL,
CEXT_CHUNK,
&celt,
&ctbExtensions);
if (S_FALSE == hr)
{
m_fNoMore = TRUE;
}
else
{
_JumpIfError(hr, error, "EnumAttributesOrExtensions");
}
hr = _SaveExtensions(celt, &ctbExtensions);
_JumpIfError(hr, error, "_SaveExtensions");
m_ielt = -1;
m_ieltCurrent = -1;
m_celtCurrent = celt;
m_fNoCurrentRecord = TRUE;
error:
if (NULL != ctbExtensions.pb)
{
CoTaskMemFree(ctbExtensions.pb);
}
return(_SetErrorInfo(hr, L"CEnumCERTVIEWEXTENSION::Reset"));
}
STDMETHODIMP
CEnumCERTVIEWEXTENSION::Clone(
/* [out] */ IEnumCERTVIEWEXTENSION **ppenum)
{
HRESULT hr;
IEnumCERTVIEWEXTENSION *penum = NULL;
if (NULL == ppenum)
{
hr = E_POINTER;
_JumpError(hr, error, "NULL parm");
}
*ppenum = NULL;
penum = new CEnumCERTVIEWEXTENSION;
if (NULL == penum)
{
hr = E_OUTOFMEMORY;
_JumpError(hr, error, "new CEnumCERTVIEWEXTENSION");
}
hr = ((CEnumCERTVIEWEXTENSION *) penum)->Open(m_RowId, m_Flags, m_pvw);
_JumpIfError(hr, error, "Open");
if (-1 != m_ielt)
{
hr = penum->Skip(m_ielt);
_JumpIfError(hr, error, "Skip");
if (!m_fNoCurrentRecord)
{
LONG Index;
hr = penum->Next(&Index);
_JumpIfError(hr, error, "Next");
CSASSERT(Index == m_ielt);
}
}
*ppenum = penum;
penum = NULL;
hr = S_OK;
error:
if (NULL != penum)
{
penum->Release();
}
return(_SetErrorInfo(hr, L"CEnumCERTVIEWEXTENSION::Clone"));
}
HRESULT
CEnumCERTVIEWEXTENSION::_SetErrorInfo(
IN HRESULT hrError,
IN WCHAR const *pwszDescription)
{
CSASSERT(FAILED(hrError) || S_OK == hrError || S_FALSE == hrError);
if (FAILED(hrError))
{
HRESULT hr;
hr = DispatchSetErrorInfo(
hrError,
pwszDescription,
wszCLASS_CERTVIEW L".CEnumCERTVIEWEXTENSION",
&IID_IEnumCERTVIEWEXTENSION);
CSASSERT(hr == hrError);
}
return(hrError);
}
#if 1
// IUnknown implementation
STDMETHODIMP
CEnumCERTVIEWEXTENSION::QueryInterface(
const IID& iid,
void **ppv)
{
HRESULT hr;
if (NULL == ppv)
{
hr = E_POINTER;
_JumpError(hr, error, "NULL parm");
}
if (iid == IID_IUnknown)
{
*ppv = static_cast<IEnumCERTVIEWEXTENSION *>(this);
}
else if (iid == IID_IDispatch)
{
*ppv = static_cast<IEnumCERTVIEWEXTENSION *>(this);
}
else if (iid == IID_IEnumCERTVIEWEXTENSION)
{
*ppv = static_cast<IEnumCERTVIEWEXTENSION *>(this);
}
else
{
*ppv = NULL;
hr = E_NOINTERFACE;
_JumpError(hr, error, "IID");
}
reinterpret_cast<IUnknown *>(*ppv)->AddRef();
hr = S_OK;
error:
return(hr);
}
ULONG STDMETHODCALLTYPE
CEnumCERTVIEWEXTENSION::AddRef()
{
return(InterlockedIncrement(&m_cRef));
}
ULONG STDMETHODCALLTYPE
CEnumCERTVIEWEXTENSION::Release()
{
ULONG cRef = InterlockedDecrement(&m_cRef);
if (0 == cRef)
{
delete this;
}
return(cRef);
}
#endif