windows-server-2003/admin/wmi/wbem/providers/msiprovider/dll/condition.cpp

// Condition.cpp: implementation of the CCondition class.

//

// Copyright (c) 1997-2001 Microsoft Corporation, All Rights Reserved
//
//////////////////////////////////////////////////////////////////////

#include "precomp.h"
#include "Condition.h"

//////////////////////////////////////////////////////////////////////
// Construction/Destruction
//////////////////////////////////////////////////////////////////////

CCondition::CCondition(CRequestObject *pObj, IWbemServices *pNamespace,
                                   IWbemContext *pCtx):CGenericClass(pObj, pNamespace, pCtx)
{

}

CCondition::~CCondition()
{

}

HRESULT CCondition::CreateObject(IWbemObjectSink *pHandler, ACTIONTYPE atAction)
{
    HRESULT hr = WBEM_S_NO_ERROR;

	MSIHANDLE hView		= NULL;
	MSIHANDLE hRecord	= NULL;

    int i = -1;
    WCHAR wcBuf[BUFF_SIZE];
    WCHAR wcQuery[BUFF_SIZE];
    WCHAR wcProductCode[39];
    WCHAR wcProp[BUFF_SIZE];
    DWORD dwBufSize;
    bool bMatch = false;
    UINT uiStatus;

    //These will change from class to class
    bool bCheck;

    if ( atAction != ACTIONTYPE_ENUM )
	{
		// we are doing GetObject so we need to be reinitialized
		hr = WBEM_E_NOT_FOUND;
	}

	// safe operation
	// lenght is smaller than BUFF_SIZE ( 512 )
    wcscpy(wcQuery, L"select distinct `Feature_`, `Level`, `Condition` from Condition");

    SetSinglePropertyPath(L"CheckID");

	LPWSTR Buffer = NULL;
	LPWSTR dynBuffer = NULL;

	DWORD dwDynBuffer = 0L;

    while(!bMatch && m_pRequest->Package(++i) && (hr != WBEM_E_CALL_CANCELLED))
	{
		// safe operation:
		// Package ( i ) returns NULL ( tested above ) or valid WCHAR [39]

        wcscpy(wcProductCode, m_pRequest->Package(i));

		//Open our database
        try
		{
            if ( GetView ( &hView, wcProductCode, wcQuery, L"Condition", TRUE, FALSE ) )
			{
                uiStatus = g_fpMsiViewFetch(hView, &hRecord);

                while(!bMatch && (uiStatus != ERROR_NO_MORE_ITEMS) && (hr != WBEM_E_CALL_CANCELLED)){
                    CheckMSI(uiStatus);

                    if(FAILED(hr = SpawnAnInstance(&m_pObj))) throw hr;

                    //----------------------------------------------------
                    dwBufSize = BUFF_SIZE;
					GetBufferToPut ( hRecord, 1, dwBufSize, wcProp, dwDynBuffer, dynBuffer, Buffer );

                    PutProperty(m_pObj, pName, Buffer);
                    PutProperty(m_pObj, pFeature, Buffer);
                    PutProperty(m_pObj, pCaption, Buffer);
                    PutProperty(m_pObj, pDescription, Buffer);

                    if ( ValidateFeatureName ( Buffer, wcProductCode ) )
					{
                        CheckMSI(g_fpMsiRecordGetStringW(hRecord, 2, wcBuf, &dwBufSize));
						PutKeyProperty ( m_pObj, pCheckID, Buffer, &bCheck, m_pRequest, 2, wcBuf, wcProductCode);

						if ( dynBuffer && dynBuffer [ 0 ] != 0 )
						{
							dynBuffer [ 0 ] = 0;
						}

					//====================================================

                        PutProperty(m_pObj, pLevel, g_fpMsiRecordGetInteger(hRecord, 2));

                        dwBufSize = BUFF_SIZE;
						PutPropertySpecial ( hRecord, 3, dwBufSize, wcBuf, dwDynBuffer, dynBuffer, pCondition, FALSE );

                    //----------------------------------------------------

                        if(bCheck) bMatch = true;

                        if((atAction != ACTIONTYPE_GET)  || bMatch){

                            hr = pHandler->Indicate(1, &m_pObj);
                        }
                    }
					else
					{
						if ( dynBuffer && dynBuffer [ 0 ] != 0 )
						{
							dynBuffer [ 0 ] = 0;
						}
					}

                    m_pObj->Release();
                    m_pObj = NULL;
                
                    g_fpMsiCloseHandle(hRecord);

                    uiStatus = g_fpMsiViewFetch(hView, &hRecord);
                }
            }
		}
		catch(...)
		{
			if ( dynBuffer )
			{
				delete [] dynBuffer;
				dynBuffer = NULL;
			}

			g_fpMsiCloseHandle(hRecord);
			g_fpMsiViewClose(hView);
			g_fpMsiCloseHandle(hView);

			msidata.CloseDatabase ();

			if(m_pObj)
			{
				m_pObj->Release();
				m_pObj = NULL;
			}

			throw;
		}

		g_fpMsiCloseHandle(hRecord);
		g_fpMsiViewClose(hView);
		g_fpMsiCloseHandle(hView);

		msidata.CloseDatabase ();
    }

    if ( dynBuffer )
	{
		delete [] dynBuffer;
		dynBuffer = NULL;
	}
	
	return hr;
}