Leaked source code of windows server 2003
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//+--------------------------------------------------------------------------
//
// Microsoft Windows
// Copyright (C) Microsoft Corporation, 1996 - 1999
//
// File: row.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"
#define __dwFILE__ __dwFILE_CERTVIEW_ROW_CPP__
#if DBG_CERTSRV
LONG g_cCertViewRow;
LONG g_cCertViewRowTotal;
#endif
#define CB_TARGETBUFFERSIZE (128 * 1024) // remote buffer size target
#define CROW_VIEWCHUNKMIN 35
CEnumCERTVIEWROW::CEnumCERTVIEWROW()
{
DBGCODE(InterlockedIncrement(&g_cCertViewRow));
DBGCODE(InterlockedIncrement(&g_cCertViewRowTotal));
m_pvw = NULL;
m_arowCache = NULL;
m_prowCacheCurrent = NULL;
m_cRef = 1;
m_ieltMax = -1;
}
CEnumCERTVIEWROW::~CEnumCERTVIEWROW()
{
DBGCODE(InterlockedDecrement(&g_cCertViewRow));
#if DBG_CERTSRV
if (m_cRef > 1)
{
DBGPRINT((
DBG_SS_CERTVIEWI,
"%hs has %d instances left over\n",
"CEnumCERTVIEWROW",
m_cRef));
}
#endif
if (NULL != m_arowCache)
{
CoTaskMemFree((VOID *) m_arowCache);
m_arowCache = NULL;
}
if (NULL != m_pvw)
{
m_pvw->Release();
}
}
HRESULT
CEnumCERTVIEWROW::Open(
IN ICertView *pvw)
{
HRESULT hr;
if (NULL == pvw)
{
hr = E_POINTER;
_JumpError(hr, error, "NULL parm");
}
hr = ((CCertView *) pvw)->GetTable(&m_cvrcTable);
_JumpIfError(hr, error, "GetTable");
DBGPRINT((
DBG_SS_CERTVIEWI,
"CEnumCERTVIEWROW::Open(cvrcTable=%x)\n",
m_cvrcTable));
m_pvw = pvw;
m_pvw->AddRef();
m_fNoMoreData = FALSE;
m_cskip = 0;
m_ielt = 0;
m_ieltCacheNext = 1;
m_crowChunk = 0;
hr = S_OK;
error:
return(hr);
}
HRESULT
CEnumCERTVIEWROW::_FindCachedRow(
IN LONG ielt,
OUT CERTTRANSDBRESULTROW const **ppRow)
{
HRESULT hr;
CERTTRANSDBRESULTROW const *prow;
ULONG i;
CSASSERT(NULL != ppRow);
*ppRow = NULL;
// If the server threw in an extra CERTTRANSDBRESULTROW structure containing
// the maximum element count, save the maximum count for later use.
prow = m_arowCache;
if (NULL != prow && m_fNoMoreData)
{
for (i = 0; i < m_celtCache; i++)
{
prow = (CERTTRANSDBRESULTROW const *) Add2ConstPtr(prow, prow->cbrow);
}
if (&prow[1] <=
(CERTTRANSDBRESULTROW const *) Add2ConstPtr(m_arowCache, m_cbCache) &&
prow->rowid == ~prow->ccol)
{
DBGPRINT((
DBG_SS_CERTVIEWI,
"_FindCachedRow: ieltMax = %d -> %d\n",
m_ieltMax,
prow->rowid));
CSASSERT(-1 == m_ieltMax || (LONG) prow->rowid == m_ieltMax);
m_ieltMax = prow->rowid;
}
}
prow = m_arowCache;
if (NULL == prow || ielt < m_ieltCacheFirst || ielt >= m_ieltCacheNext)
{
hr = S_FALSE; // requested row is not in the cached rowset
goto error;
}
for (ielt -= m_ieltCacheFirst; 0 < ielt; ielt--)
{
prow = (CERTTRANSDBRESULTROW const *) Add2ConstPtr(prow, prow->cbrow);
}
*ppRow = prow;
hr = S_OK;
error:
return(hr);
}
STDMETHODIMP
CEnumCERTVIEWROW::GetMaxIndex(
/* [out, retval] */ LONG *pIndex)
{
HRESULT hr;
if (NULL == pIndex)
{
hr = E_POINTER;
_JumpError(hr, error, "NULL parm");
}
if (-1 == m_ieltMax)
{
hr = E_UNEXPECTED;
_JumpError(hr, error, "m_ieltMax not set");
}
*pIndex = m_ieltMax;
hr = S_OK;
error:
return(_SetErrorInfo(hr, L"CEnumCERTVIEWROW::GetMaxIndex"));
}
STDMETHODIMP
CEnumCERTVIEWROW::Next(
/* [out, retval] */ LONG *pIndex)
{
HRESULT hr;
LONG ielt;
LONG cbrowResultNominal;
DBGPRINT((
DBG_SS_CERTVIEWI,
"Trace: hr = pRow->Next(&lNext);\t_PrintIfError(hr, \"Next\");\n"));
if (NULL == pIndex)
{
hr = E_POINTER;
_JumpError(hr, error, "NULL parm");
}
*pIndex = -1;
m_prowCacheCurrent = NULL;
ielt = m_ielt + m_cskip + 1;
hr = _FindCachedRow(ielt, &m_prowCacheCurrent);
if (S_FALSE != hr)
{
_JumpIfError(hr, error, "_FindCachedRow");
}
else
{
if (m_fNoMoreData)
{
hr = S_FALSE;
_JumpError2(hr, error, "NoMoreData", S_FALSE);
}
if (NULL != m_arowCache)
{
CoTaskMemFree((VOID *) m_arowCache);
m_arowCache = NULL;
}
if (0 == m_crowChunk) // First call
{
hr = ((CCertView *) m_pvw)->SetViewColumns(&cbrowResultNominal);
_JumpIfError(hr, error, "SetViewColumns");
m_crowChunk = CB_TARGETBUFFERSIZE / cbrowResultNominal;
DBGPRINT((
DBG_SS_CERTVIEWI,
"ViewRow::Next: cbrowNominal=%d crowChunk=%d\n",
cbrowResultNominal,
m_crowChunk));
if (CROW_VIEWCHUNKMIN > m_crowChunk)
{
m_crowChunk = CROW_VIEWCHUNKMIN;
}
}
hr = ((CCertView *) m_pvw)->EnumView(
ielt - m_ieltCacheNext,
m_crowChunk,
&m_celtCache,
&m_ieltCacheNext,
&m_cbCache,
&m_arowCache);
if (S_FALSE == hr)
{
m_fNoMoreData = TRUE;
}
else
{
_JumpIfError(hr, error, "EnumView");
}
m_ieltCacheFirst = m_ieltCacheNext - m_celtCache;
// workaround for bug 339811 causes this to fail
//CSASSERT(ielt == m_ieltCacheFirst);
hr = _FindCachedRow(ielt, &m_prowCacheCurrent);
_JumpIfError2(hr, error, "_FindCachedRow", S_FALSE);
}
m_cskip = 0;
m_ielt = ielt;
*pIndex = m_ielt;
DBGPRINT((
DBG_SS_CERTVIEWI,
"ViewRow::Next: cskip=%d, ccache=%u:%u-%u, ielt=%u, ieltMax=%d, RowId=%u\n",
m_cskip,
m_celtCache,
m_ieltCacheFirst,
m_ieltCacheNext,
m_ielt,
m_ieltMax,
m_prowCacheCurrent->rowid));
error:
if (S_OK != hr)
{
DBGPRINT((
DBG_SS_CERTVIEWI,
"ViewRow::Next: cskip=%d, ccache=%u:%u-%u, ielt=%u, ieltMax=%d, *pIndex=%d, hr=%x\n",
m_cskip,
m_celtCache,
m_ieltCacheFirst,
m_ieltCacheNext,
m_ielt,
m_ieltMax,
NULL != pIndex? *pIndex : -1,
hr));
}
return(_SetErrorInfo(hr, L"CEnumCERTVIEWROW::Next"));
}
STDMETHODIMP
CEnumCERTVIEWROW::EnumCertViewColumn(
/* [out] */ IEnumCERTVIEWCOLUMN **ppenum)
{
HRESULT hr;
IEnumCERTVIEWCOLUMN *penum = NULL;
if (NULL == ppenum)
{
hr = E_POINTER;
_JumpError(hr, error, "NULL parm");
}
*ppenum = NULL;
if (NULL == m_prowCacheCurrent)
{
hr = E_UNEXPECTED;
_JumpError(hr, error, "NULL m_prowCacheCurrent");
}
penum = new CEnumCERTVIEWCOLUMN;
if (NULL == penum)
{
hr = E_OUTOFMEMORY;
_JumpError(hr, error, "new CEnumCERTVIEWCOLUMN");
}
hr = ((CEnumCERTVIEWCOLUMN *) penum)->Open(
CVRC_COLUMN_VALUE,
m_ielt,
m_pvw,
m_prowCacheCurrent);
_JumpIfError(hr, error, "Open");
*ppenum = penum;
penum = NULL;
hr = S_OK;
error:
if (NULL != penum)
{
penum->Release();
}
return(_SetErrorInfo(hr, L"CEnumCERTVIEWROW::EnumCertViewColumn"));
}
STDMETHODIMP
CEnumCERTVIEWROW::EnumCertViewAttribute(
/* [in] */ LONG Flags,
/* [out, retval] */ IEnumCERTVIEWATTRIBUTE **ppenum)
{
HRESULT hr;
IEnumCERTVIEWATTRIBUTE *penum = NULL;
if (NULL == ppenum)
{
hr = E_POINTER;
_JumpError(hr, error, "NULL parm");
}
*ppenum = NULL;
if (NULL == m_prowCacheCurrent)
{
hr = E_UNEXPECTED;
_JumpError(hr, error, "NULL m_prowCacheCurrent");
}
if (CVRC_TABLE_REQCERT != m_cvrcTable)
{
hr = CERTSRV_E_PROPERTY_EMPTY;
_JumpError(hr, error, "table has no attributes");
}
penum = new CEnumCERTVIEWATTRIBUTE;
if (NULL == penum)
{
hr = E_OUTOFMEMORY;
_JumpError(hr, error, "new CEnumCERTVIEWATTRIBUTE");
}
hr = ((CEnumCERTVIEWATTRIBUTE *) penum)->Open(
m_prowCacheCurrent->rowid,
Flags,
m_pvw);
_JumpIfError(hr, error, "Open");
*ppenum = penum;
penum = NULL;
hr = S_OK;
error:
if (NULL != penum)
{
penum->Release();
}
return(_SetErrorInfo(hr, L"CEnumCERTVIEWROW::EnumCertViewAttribute"));
}
STDMETHODIMP
CEnumCERTVIEWROW::EnumCertViewExtension(
/* [in] */ LONG Flags,
/* [out, retval] */ IEnumCERTVIEWEXTENSION **ppenum)
{
HRESULT hr;
IEnumCERTVIEWEXTENSION *penum = NULL;
if (NULL == ppenum)
{
hr = E_POINTER;
_JumpError(hr, error, "NULL parm");
}
*ppenum = NULL;
if (NULL == m_prowCacheCurrent)
{
hr = E_UNEXPECTED;
_JumpError(hr, error, "NULL m_prowCacheCurrent");
}
if (CVRC_TABLE_REQCERT != m_cvrcTable)
{
hr = CERTSRV_E_PROPERTY_EMPTY;
_JumpError(hr, error, "table has no extensions");
}
penum = new CEnumCERTVIEWEXTENSION;
if (NULL == penum)
{
hr = E_OUTOFMEMORY;
_JumpError(hr, error, "new CEnumCERTVIEWEXTENSION");
}
hr = ((CEnumCERTVIEWEXTENSION *) penum)->Open(
m_prowCacheCurrent->rowid,
Flags,
m_pvw);
_JumpIfError(hr, error, "Open");
*ppenum = penum;
penum = NULL;
hr = S_OK;
error:
if (NULL != penum)
{
penum->Release();
}
return(_SetErrorInfo(hr, L"CEnumCERTVIEWROW::EnumCertViewExtension"));
}
STDMETHODIMP
CEnumCERTVIEWROW::Skip(
/* [in] */ LONG celt)
{
HRESULT hr;
LONG cskipnew;
cskipnew = m_cskip + celt;
DBGPRINT((
DBG_SS_CERTVIEWI,
"Trace: hr = pRow->Skip(%d);\t_PrintIfError(hr, \"Skip(%d)\");\n",
celt,
celt));
DBGPRINT((
DBG_SS_CERTVIEWI,
"ViewRow::Skip(%d) ielt=%d: %d --> %d, skip=%d --> %d\n",
celt,
m_ielt,
m_ielt + m_cskip,
m_ielt + cskipnew,
m_cskip,
cskipnew));
CSASSERT(0 <= m_ielt);
if (0 > celt)
{
if (-1 > m_ielt + cskipnew)
{
hr = E_INVALIDARG;
_JumpError(hr, error, "Skip back to before start");
}
m_fNoMoreData = FALSE;
}
m_prowCacheCurrent = NULL;
m_cskip = cskipnew;
hr = S_OK;
error:
return(_SetErrorInfo(hr, L"CEnumCERTVIEWROW::Skip"));
}
STDMETHODIMP
CEnumCERTVIEWROW::Reset(VOID)
{
HRESULT hr;
// Trailing // and no newline comment out Skip() call we trigger:
DBGPRINT((
DBG_SS_CERTVIEWI,
"Trace: hr = pRow->Reset();\t_PrintIfError(hr, \"Reset\");\n// "));
hr = Skip(-(m_ielt + m_cskip));
_JumpIfError(hr, error, "Skip");
error:
return(_SetErrorInfo(hr, L"CEnumCERTVIEWROW::Reset"));
}
STDMETHODIMP
CEnumCERTVIEWROW::Clone(
/* [out] */ IEnumCERTVIEWROW **ppenum)
{
HRESULT hr;
IEnumCERTVIEWROW *penum = NULL;
LONG ielt;
if (NULL == ppenum)
{
hr = E_POINTER;
_JumpError(hr, error, "NULL parm");
}
hr = m_pvw->OpenView(&penum);
_JumpIfError(hr, error, "OpenView");
ielt = m_ielt + m_cskip;
if (-1 != ielt)
{
if (NULL == m_prowCacheCurrent)
{
hr = penum->Skip(ielt);
_JumpIfError(hr, error, "Skip");
}
else
{
LONG Index;
hr = penum->Skip(ielt - 1);
_JumpIfError(hr, error, "Skip");
hr = penum->Next(&Index);
_JumpIfError(hr, error, "Next");
CSASSERT(Index == ielt);
}
}
error:
if (NULL != ppenum)
{
*ppenum = penum;
}
return(_SetErrorInfo(hr, L"CEnumCERTVIEWROW::Clone"));
}
HRESULT
CEnumCERTVIEWROW::_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".CEnumCERTVIEWROW",
&IID_IEnumCERTVIEWROW);
CSASSERT(hr == hrError);
}
return(hrError);
}
// IUnknown implementation
STDMETHODIMP
CEnumCERTVIEWROW::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<IEnumCERTVIEWROW *>(this);
}
else if (iid == IID_IDispatch)
{
*ppv = static_cast<IEnumCERTVIEWROW *>(this);
}
else if (iid == IID_IEnumCERTVIEWROW)
{
*ppv = static_cast<IEnumCERTVIEWROW *>(this);
}
else
{
*ppv = NULL;
hr = E_NOINTERFACE;
_JumpError(hr, error, "IID");
}
reinterpret_cast<IUnknown *>(*ppv)->AddRef();
hr = S_OK;
error:
return(hr);
}
ULONG STDMETHODCALLTYPE
CEnumCERTVIEWROW::AddRef()
{
return(InterlockedIncrement(&m_cRef));
}
ULONG STDMETHODCALLTYPE
CEnumCERTVIEWROW::Release()
{
ULONG cRef = InterlockedDecrement(&m_cRef);
if (0 == cRef)
{
delete this;
}
return(cRef);
}