Leaked source code of windows server 2003
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//***************************************************************************
//
// Copyright © Microsoft Corporation. All rights reserved.
//
// FRQueryEx.cpp
//
// Purpose: Extended query support functions
//
//***************************************************************************
#include "precomp.h"
#include <smartptr.h>
#include <analyser.h>
#include <FRQueryEx.h>
#include <assertbreak.h>
#include <utils.h>
#include "multiplat.h"
CFrameworkQueryEx::CFrameworkQueryEx()
{
}
CFrameworkQueryEx::~CFrameworkQueryEx()
{
}
// See comments in header
BOOL CFrameworkQueryEx::Is3TokenOR(LPCWSTR wszProp1, LPCWSTR wszProp2, VARIANT &vVar1, VARIANT &vVar2)
{
BOOL bRet = FALSE;
if ((m_pLevel1RPNExpression != NULL) &&
(m_pLevel1RPNExpression->nNumTokens == 3) &&
(m_pLevel1RPNExpression->pArrayOfTokens[2].nTokenType == SQL_LEVEL_1_TOKEN::TOKEN_OR) &&
(m_pLevel1RPNExpression->pArrayOfTokens[0].nTokenType == SQL_LEVEL_1_TOKEN::OP_EXPRESSION) &&
(m_pLevel1RPNExpression->pArrayOfTokens[1].nTokenType == SQL_LEVEL_1_TOKEN::OP_EXPRESSION) &&
(m_pLevel1RPNExpression->pArrayOfTokens[0].nOperator == SQL_LEVEL_1_TOKEN::OP_EQUAL) &&
(m_pLevel1RPNExpression->pArrayOfTokens[1].nOperator == SQL_LEVEL_1_TOKEN::OP_EQUAL)
)
{
if (
(_wcsicmp(m_pLevel1RPNExpression->pArrayOfTokens[0].pPropertyName, wszProp1) == 0) &&
(_wcsicmp(m_pLevel1RPNExpression->pArrayOfTokens[1].pPropertyName, wszProp2) == 0))
{
VariantClear(&vVar1);
VariantClear(&vVar2);
if (FAILED(VariantCopy(&vVar1, &m_pLevel1RPNExpression->pArrayOfTokens[0].vConstValue)) ||
FAILED(VariantCopy(&vVar2, &m_pLevel1RPNExpression->pArrayOfTokens[1].vConstValue)) )
{
throw CHeap_Exception ( CHeap_Exception :: E_ALLOCATION_ERROR ) ;
}
bRet = TRUE;
}
else if (
(_wcsicmp(m_pLevel1RPNExpression->pArrayOfTokens[0].pPropertyName, wszProp2) == 0) &&
(_wcsicmp(m_pLevel1RPNExpression->pArrayOfTokens[1].pPropertyName, wszProp1) == 0))
{
VariantClear(&vVar1);
VariantClear(&vVar2);
if (FAILED(VariantCopy(&vVar1, &m_pLevel1RPNExpression->pArrayOfTokens[1].vConstValue)) ||
FAILED(VariantCopy(&vVar2, &m_pLevel1RPNExpression->pArrayOfTokens[0].vConstValue)) )
{
throw CHeap_Exception ( CHeap_Exception :: E_ALLOCATION_ERROR ) ;
}
bRet = TRUE;
}
}
return bRet;
}
// See comments in header
BOOL CFrameworkQueryEx::IsNTokenAnd(CHStringArray &sarr, CHPtrArray &sPtrArr)
{
BOOL bRet = FALSE;
if (m_pLevel1RPNExpression != NULL)
{
// Walk all the tokens
for (DWORD x = 0; x < m_pLevel1RPNExpression->nNumTokens; x++)
{
// If this is an expression token, and the expression is of type '='
if ((m_pLevel1RPNExpression->pArrayOfTokens[x].nTokenType == SQL_LEVEL_1_TOKEN::OP_EXPRESSION) &&
(m_pLevel1RPNExpression->pArrayOfTokens[x].nOperator == SQL_LEVEL_1_TOKEN::OP_EQUAL))
{
// convert the property name to upper case. This facilitates checking
// to see if it is already in the list.
_wcsupr(m_pLevel1RPNExpression->pArrayOfTokens[x].pPropertyName);
// Check to see if we have already seen this property.
if (IsInList(sarr, m_pLevel1RPNExpression->pArrayOfTokens[x].pPropertyName) == -1)
{
// Add the name to the list
sarr.Add(m_pLevel1RPNExpression->pArrayOfTokens[x].pPropertyName);
// Create a new variant for the value and add it to the list
LPVOID pValue = new variant_t(m_pLevel1RPNExpression->pArrayOfTokens[x].vConstValue);
try
{
sPtrArr.Add(pValue);
}
catch ( ... )
{
delete pValue;
sarr.RemoveAll();
DWORD dwSize = sPtrArr.GetSize();
for (x = 0; x < dwSize; x++)
{
delete sPtrArr[x];
}
sPtrArr.RemoveAll();
throw ;
}
bRet = TRUE;
}
else
{
// Already in list
bRet = FALSE;
break;
}
}
// It wasn't an expression token, if it's not AND, we've failed.
else if (m_pLevel1RPNExpression->pArrayOfTokens[x].nTokenType != SQL_LEVEL_1_TOKEN::TOKEN_AND)
{
bRet = FALSE;
break;
}
}
// If this didn't work, let's clean the CHPtrArray and CHStringArray
if (!bRet)
{
sarr.RemoveAll();
DWORD dwSize = sPtrArr.GetSize();
for (x = 0; x < dwSize; x++)
{
delete sPtrArr[x];
}
sPtrArr.RemoveAll();
}
}
return bRet;
}
// see comments in header
HRESULT CFrameworkQueryEx::GetValuesForProp(LPCWSTR wszPropName, std::vector<int>& vectorValues)
{
HRESULT hr = WBEM_S_NO_ERROR;
if (m_pLevel1RPNExpression != NULL)
{
hr = CQueryAnalyser::GetValuesForProp(m_pLevel1RPNExpression, wszPropName, vectorValues);
if (SUCCEEDED(hr))
{
// Remove duplicates
for (int x = 1; x < vectorValues.size(); x++)
{
for (int y = 0; y < x; y++)
{
if (vectorValues[y] == vectorValues[x])
{
vectorValues.erase(vectorValues.begin() + x);
x--;
}
}
}
}
else
{
vectorValues.clear();
if (hr == WBEMESS_E_REGISTRATION_TOO_BROAD)
{
hr = WBEM_S_NO_ERROR;
}
}
}
else
{
ASSERT_BREAK(FALSE);
vectorValues.clear();
hr = WBEM_E_FAILED;
}
return hr;
}
// see comments in header
HRESULT CFrameworkQueryEx::GetValuesForProp(LPCWSTR wszPropName, std::vector<_variant_t>& vectorValues)
{
HRESULT hr = WBEM_S_NO_ERROR;
if (wszPropName && (m_pLevel1RPNExpression != NULL))
{
hr = CQueryAnalyser::GetValuesForProp(m_pLevel1RPNExpression, wszPropName, vectorValues);
if (SUCCEEDED(hr))
{
// If this is a reference property, we need to normalize the names to a common form
// so the removal of duplicates works correctly.
if (IsReference(wszPropName))
{
// Get the current computer name
CHString sOutPath, sComputerName;
DWORD dwBufferLength = MAX_COMPUTERNAME_LENGTH + 1;
FRGetComputerName(sComputerName.GetBuffer( dwBufferLength ), &dwBufferLength);
sComputerName.ReleaseBuffer();
if (sComputerName.IsEmpty())
{
sComputerName = L"DEFAULT";
}
DWORD dwRet = e_OK;
// Normalize the path names. Try leaving the property names alone
for (int x = 0; x < vectorValues.size(); x++)
{
// If we failed to parse the path, or if the namespace isn't our namespace, delete
// the entry.
if ( (V_VT(&vectorValues[x]) == VT_BSTR) &&
(dwRet = NormalizePath(V_BSTR(&vectorValues[x]), sComputerName, GetNamespace(), 0, sOutPath)) == e_OK)
{
vectorValues[x] = sOutPath;
}
else if (dwRet == e_NullName)
{
break;
}
else
{
vectorValues.erase(vectorValues.begin() + x);
x--;
}
}
// If the key property names of any of the values were null, we have to set them all
// to null.
if (dwRet == e_NullName)
{
for (int x = 0; x < vectorValues.size(); x++)
{
// If we failed to parse the path, or if the namespace isn't our namespace, delete
// the entry.
if ( (V_VT(&vectorValues[x]) == VT_BSTR) &&
(dwRet = NormalizePath(V_BSTR(&vectorValues[x]), sComputerName, GetNamespace(), NORMALIZE_NULL, sOutPath)) == e_OK)
{
vectorValues[x] = sOutPath;
}
else
{
vectorValues.erase(vectorValues.begin() + x);
x--;
}
}
}
}
// Remove duplicates
for (int x = 1; x < vectorValues.size(); x++)
{
for (int y = 0; y < x; y++)
{
if (vectorValues[y] == vectorValues[x])
{
vectorValues.erase(vectorValues.begin() + x);
x--;
}
}
}
}
else
{
vectorValues.clear();
if (hr == WBEMESS_E_REGISTRATION_TOO_BROAD)
{
hr = WBEM_S_NO_ERROR;
}
}
}
else
{
ASSERT_BREAK(FALSE);
vectorValues.clear();
hr = WBEM_E_FAILED;
}
return hr;
}
// See comments in header
void CFrameworkQueryEx::GetPropertyBitMask(const CHPtrArray &Properties, LPVOID pBits)
{
if (AllPropertiesAreRequired())
{
SetAllBits(pBits, Properties.GetSize());
}
else
{
ZeroAllBits(pBits, Properties.GetSize());
CHString sProperty;
for (DWORD x=0; x < Properties.GetSize(); x++)
{
sProperty = (WCHAR *)Properties[x];
sProperty.MakeUpper();
if (IsInList(m_csaPropertiesRequired, sProperty) != -1)
{
SetBit(pBits, x);
}
}
}
}
HRESULT CFrameworkQueryEx::InitEx(
const BSTR bstrQueryFormat,
const BSTR bstrQuery,
long lFlags,
CHString &sNamespace
)
{
HRESULT hr = WBEM_S_NO_ERROR;
// parse the query using the parsing interface
IWbemQueryPtr pQueryInterface(CLSID_WbemQuery);
hr = pQueryInterface->Parse(bstrQueryFormat, bstrQuery, 0);
if (SUCCEEDED(hr))
{
ULONG uFeatureCount = WMIQ_LF_LAST;
ULONG uFeatures[WMIQ_LF_LAST];
hr = pQueryInterface->TestLanguageFeatures(0, &uFeatureCount, uFeatures);
if (SUCCEEDED(hr))
{
if (uFeatures[0] == WMIQ_LF1_BASIC_SELECT)
{
// if this is a nova compatible select statement
hr = Init(bstrQueryFormat, bstrQuery, lFlags, sNamespace);
}
else if (uFeatures[0] == WMIQ_LF18_ASSOCIATONS) // add others?
{
// Save the detailed query
m_sQueryEx = bstrQuery;
// create select statement from class name
SWbemAssocQueryInf aqfBuff;
hr = pQueryInterface->GetQueryInfo(WMIQ_ANALYSIS_ASSOC_QUERY, WMIQ_ASSOCQ_ASSOCIATORS, sizeof(aqfBuff), &aqfBuff);
if (SUCCEEDED(hr))
{
CHString sQuery;
// I don't know how to tell if this is an associators or a reference
if (true)
{
sQuery.Format(L"Select * from %s", aqfBuff.m_pszAssocClass);
}
// Store the more basic query
hr = Init(bstrQueryFormat, bstrQuery, lFlags, sNamespace);
}
}
else
{
hr = WBEM_E_INVALID_QUERY;
}
}
}
return hr;
}
bool CFrameworkQueryEx::IsExtended()
{
return !m_sQueryEx.IsEmpty();
}