529 lines
14 KiB
C++
529 lines
14 KiB
C++
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/*++
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Copyright (C) 1993-1999 Microsoft Corporation
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Module Name:
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ipropbag.cpp
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Abstract:
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Implementation of the private IPropertyBag interface used by
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the Performance Logs and Alerts MMC snap-in.
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--*/
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#include "stdafx.h"
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#include "smcfgmsg.h"
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#include "ipropbag.h"
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USE_HANDLE_MACROS("SMLOGCFG(ipropbag.cpp)");
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/*
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* CImpIPropertyBag interface implementation
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*/
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/*
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* CImpIPropertyBag::CImpIPropertyBag
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*
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* Purpose:
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* Constructor.
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*
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* Return Value:
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*/
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CImpIPropertyBag::CImpIPropertyBag ()
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: m_cRef ( 0 ),
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m_pszData ( NULL ),
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m_dwCurrentDataLength ( 0 ),
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m_plistData ( NULL )
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{
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m_hModule = (HINSTANCE)GetModuleHandleW (_CONFIG_DLL_NAME_W_);
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return;
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}
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/*
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* CImpIPropertyBag::~CImpIPropertyBag
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*
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* Purpose:
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* Destructor.
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*
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* Return Value:
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*/
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CImpIPropertyBag::~CImpIPropertyBag ( void )
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{
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if ( NULL != m_pszData ) {
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delete m_pszData;
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}
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while ( NULL != m_plistData ) {
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PPARAM_DATA pData = DataListRemoveHead();
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VariantClear ( &pData->vValue );
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delete pData;
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}
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return;
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}
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/*
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* CImpIPropertyBag::Read
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*
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* Purpose:
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*
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* This function is called to read a property from the property bag.
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*
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* Parameters:
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* pszPropName Pointer to name of property to be read
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* pVar Pointer to the VARIANT to receive the property value
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* pIErrorLog Pointer to the caller's error log
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*/
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STDMETHODIMP
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CImpIPropertyBag::Read (
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LPCOLESTR pszPropName, //Pointer to the property to be read
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VARIANT* pVar, //Pointer to the VARIANT to receive the
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//property value
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IErrorLog* pIErrorLog ) //Pointer to the caller's error log // can be null
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{
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HRESULT hr = S_OK;
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PPARAM_DATA pData;
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if (NULL==pszPropName)
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return ResultFromScode(E_POINTER);
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if (NULL==pVar)
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return ResultFromScode(E_POINTER);
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// Currently don't handle error log.
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ASSERT ( NULL == pIErrorLog );
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pIErrorLog; // Avoid compiler warning
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//Read the specified data into the passed variant.
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pData = FindProperty ( pszPropName );
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if ( NULL != pData ) {
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//VARTYPE vtTarget = vValue.vt;
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hr = VariantChangeType ( pVar, &pData->vValue, NULL, pVar->vt );
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} else {
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hr = E_INVALIDARG;
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}
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return hr;
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}
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/*
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* CImpIPropertyBag::Write
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*
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* Purpose:
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*
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* This function is called to write a property to the property bag.
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*
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* Parameters:
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* pszPropName Pointer to name of property to be written
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* pVar Pointer to the VARIANT containing the property value
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*/
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STDMETHODIMP
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CImpIPropertyBag::Write (
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LPCOLESTR pszPropName, //Pointer to the property to be written
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VARIANT* pVar ) //Pointer to the VARIANT containing the
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//property value and type
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{
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HRESULT hr = S_OK;
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VARIANT vValueBstr;
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DWORD dwNameLength;
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DWORD dwDataLength;
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DWORD dwDelimiterLength;
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CString strParamTag;
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CString strValueTag;
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CString strEolTag;
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LPTSTR pszNewBuffer = NULL;
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ResourceStateManager rsm;
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if ( NULL != pszPropName && NULL != pVar ) {
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VariantInit ( &vValueBstr );
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hr = VariantChangeType ( &vValueBstr, pVar, NULL, VT_BSTR );
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if ( SUCCEEDED ( hr ) ) {
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MFC_TRY
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strParamTag.LoadString(IDS_HTML_PARAM_TAG);
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strValueTag.LoadString(IDS_HTML_VALUE_TAG);
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strEolTag.LoadString(IDS_HTML_VALUE_EOL_TAG);
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dwDelimiterLength = strParamTag.GetLength() + strValueTag.GetLength() + strEolTag.GetLength();
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dwNameLength = lstrlen ( pszPropName );
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dwDataLength = lstrlen ( W2T ( vValueBstr.bstrVal ) );
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// Include 1 for the ending NULL character in the length check.
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if ( m_dwCurrentDataLength
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< lstrlen ( m_pszData ) + dwNameLength + dwDataLength + dwDelimiterLength + 1 ) {
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m_dwCurrentDataLength += eDefaultBufferLength;
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pszNewBuffer = new TCHAR[m_dwCurrentDataLength];
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lstrcpy ( pszNewBuffer, L"");
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if ( NULL != m_pszData ) {
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lstrcpy ( pszNewBuffer, m_pszData );
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delete m_pszData;
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}
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m_pszData = pszNewBuffer;
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pszNewBuffer = NULL;
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}
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// Build the new string and add it to the current data.
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lstrcat ( m_pszData, strParamTag.GetBufferSetLength(strParamTag.GetLength()) );
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lstrcat ( m_pszData, pszPropName );
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lstrcat ( m_pszData, strValueTag.GetBufferSetLength(strValueTag.GetLength()) );
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lstrcat ( m_pszData, W2T(vValueBstr.bstrVal) );
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lstrcat ( m_pszData, strEolTag.GetBufferSetLength(strEolTag.GetLength()) );
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MFC_CATCH_HR_RETURN;
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if ( NULL != pszNewBuffer ) {
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delete pszNewBuffer;
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}
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}
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} else {
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hr = E_POINTER;
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}
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return hr;
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}
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/*
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* CImpIPropertyBag::GetData
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*
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* Purpose:
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* Return pointer to the data buffer.
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*
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* Return Value:
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* Pointer to the data buffer.
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*/
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LPTSTR
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CImpIPropertyBag::GetData ( void )
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{
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return m_pszData;
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}
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/*
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* CImpIPropertyBag::LoadData
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*
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* Purpose:
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* Load data from the supplied buffer into internal data structures.
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* Return pointer to the next object, or NULL if no more objects.
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*
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* Return Value:
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* Status.
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*/
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DWORD
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CImpIPropertyBag::LoadData ( LPTSTR pszData, LPTSTR* ppszNextData )
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{
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DWORD dwStatus = ERROR_SUCCESS;
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BOOL bUnicode = TRUE;
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LPWSTR pszDataW = NULL;
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LPWSTR pszDataAllocW = NULL;
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LPWSTR pszCurrentPos = NULL;
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WCHAR szGuid[uiSmLogGuidStringBufLen];
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WCHAR szParamSearchTag[MAX_PATH];
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WCHAR szValueSearchTag[MAX_PATH];
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WCHAR szEooSearchTag[MAX_PATH];
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INT iLength;
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USES_CONVERSION;
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szGuid[0] = L'\0';
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szParamSearchTag[0] = L'\0';
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szValueSearchTag[0] = L'\0';
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szEooSearchTag[0] = L'\0';
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if ( NULL != pszData ) {
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// Unicode search: Begin the search after the first instance
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// of the System Monitor class id.
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iLength = ::LoadString ( m_hModule, IDS_HTML_OBJECT_CLASSID, szGuid, uiSmLogGuidStringBufLen );
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if ( 0 < iLength ) {
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::LoadString ( m_hModule, IDS_HTML_PARAM_SEARCH_TAG, szParamSearchTag, MAX_PATH );
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}
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if ( 0 < iLength ) {
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::LoadString ( m_hModule, IDS_HTML_VALUE_SEARCH_TAG, szValueSearchTag, MAX_PATH );
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}
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if ( 0 < iLength ) {
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::LoadString ( m_hModule, IDS_HTML_OBJECT_FOOTER, szEooSearchTag, MAX_PATH );
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}
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ASSERT ( sizeof(TCHAR) == sizeof(WCHAR) );
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if ( 0 < iLength ) {
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pszCurrentPos = wcsstr(pszData, szGuid );
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} else {
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dwStatus = ERROR_OUTOFMEMORY;
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}
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if ( NULL != pszCurrentPos ) {
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pszDataW = pszData;
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bUnicode = TRUE;
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} else {
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// Check for ANSI version:
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LPSTR pszGuidA = NULL;
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LPSTR pszCurrentPosA = NULL;
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LPSTR pszDataA = (CHAR*) pszData;
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pszGuidA = W2A( szGuid );
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pszCurrentPosA = strstr ( pszDataA, pszGuidA );
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if ( NULL != pszCurrentPosA ) {
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pszDataAllocW = A2W ( pszDataA );
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pszDataW = pszDataAllocW;
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bUnicode = FALSE;
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pszCurrentPos = wcsstr(pszDataW, szGuid );
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}
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}
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if ( NULL != pszCurrentPos ) {
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WCHAR szQuote[2];
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LPWSTR pszEoo;
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wcscpy ( szQuote, L"\"" );
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// End of object is the first object footer tag after the first sysmon
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// class id found. If multiple objects in the data block, only parse the first sysmon.
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pszEoo = wcsstr(pszCurrentPos, szEooSearchTag);
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if ( NULL != pszEoo ) {
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// Find first parameter tag.
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pszCurrentPos = wcsstr(pszCurrentPos, szParamSearchTag );
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while ( NULL != pszCurrentPos && pszCurrentPos < pszEoo ) {
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LPWSTR pszNextPos;
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INT lStrLength;
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PPARAM_DATA pParamData;
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LPWSTR pszTemp;
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// Store parameter/property name.
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// Find one past first quote.
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pszCurrentPos = wcsstr(pszCurrentPos, szQuote ) + 1;
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// The param name is between first and second quote.
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pszNextPos = wcsstr(pszCurrentPos, szQuote );
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lStrLength = ( (INT)((UINT_PTR)pszNextPos - (UINT_PTR)pszCurrentPos) ) / sizeof ( WCHAR ) ;
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try {
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pParamData = new PARAM_DATA;
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pParamData->pNextParam = NULL;
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VariantInit ( &pParamData->vValue );
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pParamData->vValue.vt = VT_BSTR;
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} catch ( ... ) {
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dwStatus = ERROR_OUTOFMEMORY;
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break;
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}
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wcsncpy ( pParamData->pszPropertyName, pszCurrentPos, lStrLength );
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pParamData->pszPropertyName[lStrLength] = TEXT ('\0');
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// Find value tag and store parameter/property value.
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// Find value tag
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pszCurrentPos = wcsstr ( pszCurrentPos, szValueSearchTag );
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// Find one past first quote
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pszCurrentPos = wcsstr ( pszCurrentPos, szQuote ) + 1;
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// The value is between first and second quote.
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pszNextPos = wcsstr ( pszCurrentPos, szQuote );
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lStrLength = ( (INT)((UINT_PTR)pszNextPos - (UINT_PTR)pszCurrentPos) ) / sizeof ( WCHAR );
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try {
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pszTemp = new WCHAR[lStrLength+1];
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wcsncpy ( pszTemp, pszCurrentPos, lStrLength );
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pszTemp[lStrLength] = TEXT('\0');
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pParamData->vValue.bstrVal =
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SysAllocString ( pszTemp );
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delete pszTemp;
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DataListAddHead ( pParamData );
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// Find next parameter/property tag.
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pszCurrentPos = wcsstr(pszCurrentPos, szParamSearchTag );
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} catch ( ... ) {
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delete pParamData;
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dwStatus = ERROR_OUTOFMEMORY;
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break;
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}
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} // While parameter tags exist for a single object.
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if ( NULL != ppszNextData ) {
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LPWSTR pszNextEoo = NULL;
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pszEoo += lstrlenW ( szEooSearchTag );
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pszNextEoo = wcsstr(pszEoo, szEooSearchTag);
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// Successful. Return pointer to end of the current object, or NULL if all
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// objects have been processed.
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if ( NULL != pszNextEoo ) {
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if ( bUnicode ) {
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*ppszNextData = pszEoo;
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} else {
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INT lStrLength;
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lStrLength = ( (INT)((UINT_PTR)pszEoo - (UINT_PTR)pszDataW) ) / sizeof ( WCHAR ) ;
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*(CHAR**)ppszNextData = (CHAR*)pszData + lStrLength;
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}
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} else {
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*ppszNextData = NULL;
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}
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}
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} else {
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if ( NULL != ppszNextData ) {
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*ppszNextData = NULL;
|
||
|
|
}
|
||
|
|
dwStatus = SMCFG_NO_HTML_SYSMON_OBJECT;
|
||
|
|
}
|
||
|
|
} else {
|
||
|
|
if ( NULL != ppszNextData ) {
|
||
|
|
*ppszNextData = NULL;
|
||
|
|
}
|
||
|
|
dwStatus = SMCFG_NO_HTML_SYSMON_OBJECT;
|
||
|
|
}
|
||
|
|
} else {
|
||
|
|
if ( NULL != ppszNextData ) {
|
||
|
|
*ppszNextData = NULL;
|
||
|
|
}
|
||
|
|
dwStatus = SMCFG_NO_HTML_SYSMON_OBJECT;
|
||
|
|
}
|
||
|
|
|
||
|
|
return dwStatus;
|
||
|
|
}
|
||
|
|
|
||
|
|
void
|
||
|
|
CImpIPropertyBag::DataListAddHead ( PPARAM_DATA pData )
|
||
|
|
{
|
||
|
|
pData->pNextParam = m_plistData;
|
||
|
|
m_plistData = pData;
|
||
|
|
return;
|
||
|
|
}
|
||
|
|
|
||
|
|
CImpIPropertyBag::PPARAM_DATA
|
||
|
|
CImpIPropertyBag::DataListRemoveHead ( )
|
||
|
|
{
|
||
|
|
PPARAM_DATA pReturnData;
|
||
|
|
|
||
|
|
pReturnData = m_plistData;
|
||
|
|
|
||
|
|
if ( NULL != m_plistData )
|
||
|
|
m_plistData = m_plistData->pNextParam;
|
||
|
|
|
||
|
|
return pReturnData;
|
||
|
|
}
|
||
|
|
|
||
|
|
|
||
|
|
CImpIPropertyBag::PPARAM_DATA
|
||
|
|
CImpIPropertyBag::FindProperty ( LPCTSTR pszPropName )
|
||
|
|
{
|
||
|
|
PPARAM_DATA pReturnData;
|
||
|
|
|
||
|
|
pReturnData = m_plistData;
|
||
|
|
|
||
|
|
while ( NULL != pReturnData ) {
|
||
|
|
if ( 0 == lstrcmpi ( pszPropName, pReturnData->pszPropertyName ) )
|
||
|
|
break;
|
||
|
|
pReturnData = pReturnData->pNextParam;
|
||
|
|
}
|
||
|
|
|
||
|
|
return pReturnData;
|
||
|
|
}
|
||
|
|
|
||
|
|
/////////////////////////////////////////////////////////////////////////////
|
||
|
|
// IUnknown implementation
|
||
|
|
//
|
||
|
|
|
||
|
|
|
||
|
|
//---------------------------------------------------------------------------
|
||
|
|
// Standard implementation
|
||
|
|
//
|
||
|
|
STDMETHODIMP
|
||
|
|
CImpIPropertyBag::QueryInterface
|
||
|
|
(
|
||
|
|
REFIID riid,
|
||
|
|
LPVOID *ppvObj
|
||
|
|
)
|
||
|
|
{
|
||
|
|
HRESULT hr = S_OK;
|
||
|
|
|
||
|
|
do
|
||
|
|
{
|
||
|
|
if( NULL == ppvObj )
|
||
|
|
{
|
||
|
|
hr = E_INVALIDARG;
|
||
|
|
break;
|
||
|
|
}
|
||
|
|
|
||
|
|
if (IsEqualIID(riid, IID_IUnknown))
|
||
|
|
{
|
||
|
|
*ppvObj = (IUnknown *)(IDataObject *)this;
|
||
|
|
}
|
||
|
|
else if (IsEqualIID(riid, IID_IDataObject))
|
||
|
|
{
|
||
|
|
*ppvObj = (IUnknown *)(IPropertyBag *)this;
|
||
|
|
}
|
||
|
|
else
|
||
|
|
{
|
||
|
|
hr = E_NOINTERFACE;
|
||
|
|
*ppvObj = NULL;
|
||
|
|
break;
|
||
|
|
}
|
||
|
|
|
||
|
|
// If we got this far we are handing out a new interface pointer on
|
||
|
|
// this object, so addref it.
|
||
|
|
AddRef();
|
||
|
|
} while (0);
|
||
|
|
|
||
|
|
return hr;
|
||
|
|
|
||
|
|
} // end QueryInterface()
|
||
|
|
|
||
|
|
//---------------------------------------------------------------------------
|
||
|
|
// Standard implementation
|
||
|
|
//
|
||
|
|
STDMETHODIMP_(ULONG)
|
||
|
|
CImpIPropertyBag::AddRef()
|
||
|
|
{
|
||
|
|
return InterlockedIncrement((LONG*) &m_cRef);
|
||
|
|
}
|
||
|
|
|
||
|
|
//---------------------------------------------------------------------------
|
||
|
|
// Standard implementation
|
||
|
|
//
|
||
|
|
STDMETHODIMP_(ULONG)
|
||
|
|
CImpIPropertyBag::Release()
|
||
|
|
{
|
||
|
|
ULONG cRefTemp;
|
||
|
|
cRefTemp = InterlockedDecrement((LONG *)&m_cRef);
|
||
|
|
|
||
|
|
if( 0 == cRefTemp )
|
||
|
|
{
|
||
|
|
delete this;
|
||
|
|
}
|
||
|
|
|
||
|
|
return cRefTemp;
|
||
|
|
|
||
|
|
} // end Release()
|
||
|
|
|
||
|
|
|
||
|
|
|