476 lines
14 KiB
C++
476 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 System Monitor control.
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--*/
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#include <assert.h>
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#include "polyline.h"
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#include "unkhlpr.h"
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#include "unihelpr.h"
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#include "utils.h"
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#include "strids.h"
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#include "globals.h"
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#include "smonmsg.h"
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#include "ipropbag.h"
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#define MAX_GUID_STRING_LENGTH 39
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/*
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* CImpIPropertyBag interface implementation
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*/
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IMPLEMENT_CONTAINED_IUNKNOWN(CImpIPropertyBag)
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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 ( LPUNKNOWN pUnkOuter)
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: m_cRef ( 0 ),
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m_pUnkOuter ( pUnkOuter ),
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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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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; // Eliminate 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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if( pVar->vt != VT_BSTR ){
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hr = VariantChangeTypeEx( pVar, &pData->vValue, LCID_SCRIPT, VARIANT_NOUSEROVERRIDE, pVar->vt );
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}else{
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hr = VariantChangeType ( pVar, &pData->vValue, NULL, pVar->vt );
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}
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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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static DWORD dwDelimiterLength = 0;
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static DWORD dwParamNameLength = 0;
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static DWORD dwEolTagLength = 0;
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static DWORD dwValueTagLength = 0;
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static TCHAR szParamTag[128];
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static TCHAR szValueTag[128];
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static TCHAR szEolTag[128];
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HRESULT hrConvert;
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LPTSTR pszNextField = m_pszData;
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DWORD dwCurrentDataUsedLength;
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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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VariantInit ( &vValueBstr );
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if( pVar->vt != VT_BSTR ){
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hrConvert = VariantChangeTypeEx( &vValueBstr, pVar, LCID_SCRIPT, VARIANT_NOUSEROVERRIDE, VT_BSTR );
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}else{
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hrConvert = VariantChangeType ( &vValueBstr, pVar, NULL, VT_BSTR );
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}
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// All length values calculated number of TCHARs.
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if ( 0 == dwDelimiterLength ) {
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// Initialize static values
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if (LoadString(g_hInstance, IDS_HTML_PARAM_TAG, szParamTag, 128)) {
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if (LoadString(g_hInstance, IDS_HTML_VALUE_TAG, szValueTag, 128)) {
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if (LoadString(g_hInstance, IDS_HTML_VALUE_EOL_TAG, szEolTag, 128)) {
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dwParamNameLength = lstrlen (szParamTag);
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dwValueTagLength = lstrlen ( szValueTag );
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dwEolTagLength = lstrlen ( szEolTag );
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dwDelimiterLength = dwParamNameLength + dwValueTagLength + dwEolTagLength;
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} else {
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hr = E_OUTOFMEMORY;
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}
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} else {
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hr = E_OUTOFMEMORY;
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}
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} else {
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hr = E_OUTOFMEMORY;
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}
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}
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if ( SUCCEEDED ( hr ) ) {
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dwNameLength = lstrlen ( pszPropName );
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dwDataLength = lstrlen ( W2T ( vValueBstr.bstrVal ) );
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dwCurrentDataUsedLength = lstrlen ( m_pszData );
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// Add 1 to size calculation for NULL buffer terminator.
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if ( m_dwCurrentDataLength
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< dwCurrentDataUsedLength + dwNameLength + dwDataLength + dwDelimiterLength + 1 ) {
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LPTSTR pszNewBuffer;
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if ( 0 == m_dwCurrentDataLength ) {
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m_dwCurrentDataLength += eDefaultBufferLength;
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} else {
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m_dwCurrentDataLength *= 2;
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}
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pszNewBuffer = new TCHAR[m_dwCurrentDataLength];
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if ( NULL == pszNewBuffer )
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return E_OUTOFMEMORY;
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if ( NULL != m_pszData ) {
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memcpy ( pszNewBuffer, m_pszData, dwCurrentDataUsedLength * sizeof(TCHAR) );
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delete m_pszData;
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}
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m_pszData = pszNewBuffer;
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}
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// Build the new string and add it to the current data.
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pszNextField = m_pszData + dwCurrentDataUsedLength;
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memcpy ( pszNextField, szParamTag, dwParamNameLength * sizeof(TCHAR) );
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pszNextField += dwParamNameLength;
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memcpy ( pszNextField, pszPropName, dwNameLength * sizeof(TCHAR) );
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pszNextField += dwNameLength;
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memcpy ( pszNextField, szValueTag, dwValueTagLength * sizeof(TCHAR) );
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pszNextField += dwValueTagLength;
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memcpy ( pszNextField, W2T(vValueBstr.bstrVal), dwDataLength * sizeof(TCHAR) );
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pszNextField += dwDataLength;
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memcpy ( pszNextField, szEolTag, dwEolTagLength * sizeof(TCHAR) );
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pszNextField += dwEolTagLength;
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lstrcpy ( pszNextField, _T("") );
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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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*
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* Return Value:
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* Status.
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*/
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HRESULT
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CImpIPropertyBag::LoadData ( LPTSTR pszData )
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{
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HRESULT hr = S_OK;
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LPWSTR pszDataAllocW = NULL;
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LPWSTR pszCurrentPos = NULL;
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LPWSTR pszParamTag;
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LPWSTR pszValueTag;
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LPWSTR pszEooTag;
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LPSTR pszGuidA = NULL;
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LPSTR pszCurrentPosA = NULL;
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LPSTR pszDataA = NULL;
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OLECHAR szGuidW[MAX_GUID_STRING_LENGTH];
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LPWSTR pszGuidW = NULL;
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INT iStatus;
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INT iBufLen;
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USES_CONVERSION;
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if ( NULL == pszData ) {
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assert ( FALSE );
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hr = E_POINTER;
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} else {
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assert ( sizeof(TCHAR) == sizeof(WCHAR) );
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pszParamTag = ResourceString ( IDS_HTML_PARAM_SEARCH_TAG );
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pszValueTag = ResourceString ( IDS_HTML_VALUE_SEARCH_TAG );
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pszEooTag = ResourceString ( IDS_HTML_OBJECT_FOOTER );
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if ( NULL == pszParamTag
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|| NULL == pszValueTag
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|| NULL == pszEooTag ) {
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hr = E_UNEXPECTED;
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} else {
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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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iStatus = StringFromGUID2(CLSID_SystemMonitor, szGuidW, sizeof(szGuidW)/sizeof(OLECHAR));
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if ( 0 < iStatus ) {
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pszGuidW = wcstok ( szGuidW, L"{} " );
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if ( NULL != pszGuidW ) {
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pszCurrentPos = wcsstr(pszData, pszGuidW );
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// Handle wide vs ansi.
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if ( NULL == pszCurrentPos ) {
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// Check for ANSI version:
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pszDataA = (CHAR*) pszData;
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pszGuidA = W2A( pszGuidW );
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if ( NULL != pszGuidA ) {
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pszCurrentPosA = strstr ( pszDataA, pszGuidA );
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if ( NULL != pszCurrentPosA ) {
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iBufLen = lstrlenA (pszDataA) + 1;
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pszDataAllocW = new WCHAR [iBufLen * sizeof(WCHAR)];
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if ( NULL != pszDataAllocW ) {
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_MbToWide ( pszDataAllocW, pszDataA, iBufLen );
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pszCurrentPos = wcsstr(pszDataAllocW, pszGuidW );
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} else {
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hr = E_OUTOFMEMORY;
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}
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}
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}
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}
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}
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} else {
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hr = E_UNEXPECTED;
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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, _T("\"") );
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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, pszEooTag );
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if ( NULL != pszEoo ) {
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// Find first parameter tag.
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pszCurrentPos = wcsstr(pszCurrentPos, pszParamTag );
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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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pParamData = new PARAM_DATA;
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if ( NULL != pParamData ) {
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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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} else {
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hr = E_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');
|
||
|
|
|
||
|
|
// Find value tag and store parameter/property value.
|
||
|
|
// Find value tag and store parameter/property value.
|
||
|
|
// Find value tag
|
||
|
|
pszCurrentPos = wcsstr ( pszCurrentPos, pszValueTag );
|
||
|
|
// Find one past first quote
|
||
|
|
pszCurrentPos = wcsstr ( pszCurrentPos, szQuote ) + 1;
|
||
|
|
// The value is between first and second quote.
|
||
|
|
pszNextPos = wcsstr ( pszCurrentPos, szQuote );
|
||
|
|
|
||
|
|
lStrLength = ( (INT)((UINT_PTR)pszNextPos - (UINT_PTR)pszCurrentPos) ) / sizeof ( WCHAR );
|
||
|
|
|
||
|
|
pszTemp = new TCHAR[lStrLength+1];
|
||
|
|
if (pszTemp != NULL) {
|
||
|
|
wcsncpy ( pszTemp, pszCurrentPos, lStrLength );
|
||
|
|
pszTemp[lStrLength] = TEXT('\0');
|
||
|
|
|
||
|
|
pParamData->vValue.bstrVal =
|
||
|
|
SysAllocString ( pszTemp );
|
||
|
|
|
||
|
|
delete pszTemp;
|
||
|
|
DataListAddHead ( pParamData );
|
||
|
|
// Find next parameter/property tag.
|
||
|
|
pszCurrentPos = wcsstr(pszCurrentPos, pszParamTag );
|
||
|
|
} else {
|
||
|
|
delete pParamData;
|
||
|
|
hr = E_OUTOFMEMORY;
|
||
|
|
break;
|
||
|
|
}
|
||
|
|
} // While parameter tags exist for a single object.
|
||
|
|
} else {
|
||
|
|
hr = SMON_STATUS_NO_SYSMON_OBJECT;
|
||
|
|
}
|
||
|
|
} else {
|
||
|
|
hr = SMON_STATUS_NO_SYSMON_OBJECT;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
if ( NULL != pszDataAllocW ) {
|
||
|
|
delete pszDataAllocW;
|
||
|
|
}
|
||
|
|
|
||
|
|
return hr;
|
||
|
|
}
|
||
|
|
|
||
|
|
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;
|
||
|
|
}
|