windows-nt/Source/XPSP1/NT/inetsrv/iis/admin/wmiprov_dynamic/schemaextensions.cpp

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2020-09-26 03:20:57 -05:00
/*++
Copyright (c) 2000 Microsoft Corporation
Module Name:
schemaextensions.cpp
Abstract:
This file contains the implementation of the CSchemaExtensions class.
This is the only class that talks to the catalog.
Author:
MarcelV
Revision History:
Mohit Srivastava 28-Nov-00
--*/
#include "iisprov.h"
#include "schemaextensions.h"
#include "metabase.hxx"
LPWSTR g_wszDatabaseName = L"Metabase";
HRESULT GetMetabasePath(LPTSTR io_tszPath)
/*++
Synopsis:
This beast was copied and modified from
\%sdxroot%\iis\svcs\infocomm\metadata\dll\metasub.cxx
Arguments: [io_tszPath] - must be at least size MAX_PATH
Return Value:
--*/
{
DBG_ASSERT(io_tszPath != NULL);
HRESULT hresReturn = HRESULT_FROM_WIN32(ERROR_PATH_NOT_FOUND);
TCHAR tszBuffer[MAX_PATH] = {0};
HKEY hkRegistryKey = NULL;
DWORD dwRegReturn;
DWORD dwType;
DWORD dwSize = MAX_PATH * sizeof(TCHAR);
dwRegReturn = RegOpenKey(
HKEY_LOCAL_MACHINE,
ADMIN_REG_KEY, // TEXT("SOFTWARE\\Microsoft\\INetMgr\\Parameters")
&hkRegistryKey);
if (dwRegReturn == ERROR_SUCCESS)
{
dwRegReturn = RegQueryValueEx(
hkRegistryKey,
MD_FILE_VALUE, // TEXT("MetadataFile")
NULL,
&dwType,
(BYTE *) tszBuffer,
&dwSize);
if ((dwRegReturn == ERROR_SUCCESS) && dwType == (REG_SZ))
{
//
// TODO: Change this error code
//
hresReturn = HRESULT_FROM_WIN32(ERROR_PATH_NOT_FOUND);
for(ULONG i = dwSize/sizeof(TCHAR)-1; i > 0; i--)
{
if(tszBuffer[i] == TEXT('\\'))
{
tszBuffer[i] = TEXT('\0');
hresReturn = ERROR_SUCCESS;
break;
}
}
}
RegCloseKey( hkRegistryKey );
hkRegistryKey = NULL;
}
if (FAILED(hresReturn))
{
dwRegReturn = RegOpenKey(
HKEY_LOCAL_MACHINE,
SETUP_REG_KEY, // TEXT("SOFTWARE\\Microsoft\\InetStp")
&hkRegistryKey);
if (dwRegReturn == ERROR_SUCCESS)
{
dwSize = MAX_PATH * sizeof(TCHAR);
dwRegReturn = RegQueryValueEx(hkRegistryKey,
INSTALL_PATH_VALUE,
NULL,
&dwType,
(BYTE *) tszBuffer,
&dwSize);
if ((dwRegReturn == ERROR_SUCCESS) && dwType == (REG_SZ))
{
hresReturn = HRESULT_FROM_WIN32(dwRegReturn);
}
RegCloseKey( hkRegistryKey );
}
else
{
hresReturn = HRESULT_FROM_WIN32(dwRegReturn);
}
}
_tcscpy(io_tszPath, tszBuffer);
if(FAILED(hresReturn))
{
DBGPRINTF((DBG_CONTEXT, "Could not get metabase path, hr=0x%x\n", hresReturn));
}
return hresReturn;
}
int __cdecl
CompDBNames (const void * pDBMetaLHS, const void * pDBMetaRHS)
{
const tDATABASEMETARow *pLHS = static_cast<const tDATABASEMETARow *> (pDBMetaLHS );
const tDATABASEMETARow *pRHS = static_cast<const tDATABASEMETARow *> (pDBMetaRHS );
return _wcsicmp (pLHS->pInternalName, pRHS->pInternalName);
}
int __cdecl
CompTableMeta (const void * pTableMetaLHS, const void * pTableMetaRHS)
{
const CTableMeta *pLHS = static_cast<const CTableMeta *> (pTableMetaLHS );
const CTableMeta *pRHS = static_cast<const CTableMeta *> (pTableMetaRHS );
return _wcsicmp (pLHS->TableMeta.pInternalName, pRHS->TableMeta.pInternalName);
}
int __cdecl
CompTableDBName (const void * pTableMetaLHS, const void * pTableMetaRHS)
{
const CTableMeta *pLHS = static_cast<const CTableMeta *> (pTableMetaLHS );
const CTableMeta *pRHS = static_cast<const CTableMeta *> (pTableMetaRHS );
return _wcsicmp (pLHS->TableMeta.pDatabase, pRHS->TableMeta.pDatabase);
}
// sorted by table name and index
int __cdecl
CompColumnMetas (const void * pColumnMetaLHS, const void * pColumnMetaRHS)
{
const CColumnMeta *pLHS = static_cast<const CColumnMeta *> (pColumnMetaLHS );
const CColumnMeta *pRHS = static_cast<const CColumnMeta *> (pColumnMetaRHS );
int iCmp = _wcsicmp (pLHS->ColumnMeta.pTable, pRHS->ColumnMeta.pTable);
if (iCmp != 0)
{
return iCmp;
}
return (*pLHS->ColumnMeta.pIndex) - (*pRHS->ColumnMeta.pIndex);
}
// sorted by table name and index
int __cdecl
CompTagMetas (const void * pTagMetaLHS, const void * pTagMetaRHS)
{
const tTAGMETARow *pLHS = static_cast<const tTAGMETARow *> (pTagMetaLHS );
const tTAGMETARow *pRHS = static_cast<const tTAGMETARow *> (pTagMetaRHS );
int iCmp = _wcsicmp (pLHS->pTable, pRHS->pTable);
if (iCmp != 0)
{
return iCmp;
}
int iResult = (*pLHS->pColumnIndex) - (*pRHS->pColumnIndex);
if (iResult != 0)
{
return iResult;
}
return (*pLHS->pValue) - (*pRHS->pValue);
}
CSchemaExtensions::CSchemaExtensions ()
{
m_paTableMetas = 0;
m_cNrTables = 0;
m_paColumnMetas = 0;
m_cNrColumns = 0;
m_paTags = 0;
m_cNrTags = 0;
m_pQueryCells = 0;
m_cQueryCells = 0;
m_wszBinFileName = 0;
m_tszBinFilePath = 0;
m_bBinFileLoaded = false;
}
CSchemaExtensions::~CSchemaExtensions()
{
if(m_bBinFileLoaded)
{
m_spIMbSchemaComp->ReleaseBinFileName(m_wszBinFileName);
}
delete [] m_paTableMetas;
delete [] m_paColumnMetas;
delete [] m_paTags;
delete [] m_pQueryCells;
delete [] m_wszBinFileName;
delete [] m_tszBinFilePath;
}
HRESULT CSchemaExtensions::Initialize(bool i_bUseExtensions)
{
HRESULT hr = S_OK;
ULONG cch = 0;
InitializeSimpleTableDispenser();
//
// Get the dispenser
//
hr = GetSimpleTableDispenser (WSZ_PRODUCT_IIS, 0, &m_spDispenser);
if(FAILED(hr))
{
DBGPRINTF((DBG_CONTEXT, "Could not get dispenser, hr=0x%x\n", hr));
return hr;
}
//
// Get the schema compiler interface from the dispenser which will help us
// get the bin file name.
//
hr = m_spDispenser->QueryInterface(IID_IMetabaseSchemaCompiler,
(LPVOID*)&m_spIMbSchemaComp);
if(FAILED(hr))
{
DBGPRINTF((DBG_CONTEXT, "Couldn't get SchemaCompiler interface, hr=0x%x\n", hr));
return hr;
}
//
// Get the path of mbschema.xml
//
m_tszBinFilePath = new TCHAR[MAX_PATH+1];
if(m_tszBinFilePath == NULL)
{
return E_OUTOFMEMORY;
}
hr = GetMetabasePath(m_tszBinFilePath);
if(FAILED(hr))
{
DBGPRINTF((DBG_CONTEXT, "Couldn't get metabase path, hr=0x%x\n", hr));
return hr;
}
//
// Convert it to Unicode, Set Bin Path
//
#ifndef UNICODE
// we want to convert an MBCS string in lpszA
int nLen = MultiByteToWideChar(CP_ACP, 0,m_tszBinFilePath, -1, NULL, NULL);
LPWSTR lpszW = new WCHAR[nLen];
if(lpszW == NULL)
{
return E_OUTOFMEMORY;
}
if(MultiByteToWideChar(CP_ACP, 0, m_tszBinFilePath, -1, lpszW, nLen) == 0)
{
delete [] lpszW;
hr = GetLastError();
return HRESULT_FROM_WIN32(hr);
}
hr = m_spIMbSchemaComp->SetBinPath(lpszW);
delete [] lpszW;
#else
hr = m_spIMbSchemaComp->SetBinPath(m_tszBinFilePath);
#endif
if(FAILED(hr))
{
return hr;
}
//
// Get Bin FileName
//
hr = m_spIMbSchemaComp->GetBinFileName(NULL, &cch);
if(FAILED(hr))
{
DBGPRINTF((DBG_CONTEXT, "Couldn't get schema bin filename size, hr=0x%x\n", hr));
return hr;
}
m_wszBinFileName = new WCHAR[cch+1];
if(m_wszBinFileName == NULL)
{
return E_OUTOFMEMORY;
}
hr = m_spIMbSchemaComp->GetBinFileName(m_wszBinFileName, &cch);
if(FAILED(hr))
{
DBGPRINTF((DBG_CONTEXT, "Couldn't get schema bin filename, hr=0x%x\n", hr));
return hr;
}
m_bBinFileLoaded = true;
//
// Set up the query cells
//
m_cQueryCells = 2;
m_pQueryCells = new STQueryCell[m_cQueryCells];
if(m_pQueryCells == NULL)
{
return E_OUTOFMEMORY;
}
if(i_bUseExtensions)
{
m_pQueryCells[0].pData = (LPVOID)m_wszBinFileName;
}
else
{
m_pQueryCells[0].pData = (LPVOID)NULL;
}
m_pQueryCells[0].eOperator = eST_OP_EQUAL;
m_pQueryCells[0].iCell = iST_CELL_SCHEMAFILE;
m_pQueryCells[0].dbType = DBTYPE_WSTR;
m_pQueryCells[0].cbSize = 0;
m_pQueryCells[1].pData = (void *) g_wszDatabaseName;
m_pQueryCells[1].eOperator = eST_OP_EQUAL;
m_pQueryCells[1].iCell = iCOLLECTION_META_Database;
m_pQueryCells[1].dbType = DBTYPE_WSTR;
m_pQueryCells[1].cbSize = 0;
hr = GenerateIt();
if(FAILED(hr))
{
DBGPRINTF((DBG_CONTEXT, "GenerateIt failed, hr=0x%x\n", hr));
return hr;
}
return hr;
}
HRESULT CSchemaExtensions::GetMbSchemaTimeStamp(
FILETIME* io_pFileTime) const
{
DBG_ASSERT(io_pFileTime != NULL);
DBG_ASSERT(m_tszBinFilePath != NULL);
HRESULT hr = S_OK;
ULONG cchBinFilePath = _tcslen(m_tszBinFilePath);
ULONG cchSchFileName = _tcslen(MD_SCHEMA_FILE_NAME);
TCHAR* tszPathPlusName = new TCHAR[cchBinFilePath+1+cchSchFileName+1];
TCHAR* tszCurPos = tszPathPlusName;
if(tszPathPlusName == NULL)
{
return E_OUTOFMEMORY;
}
//
// Copy the path
//
tszCurPos = tszPathPlusName;
memcpy(tszCurPos, m_tszBinFilePath, sizeof(TCHAR)*(cchBinFilePath+1));
//
// Concat a \ if necessary, and the filename,
//
tszCurPos = tszPathPlusName + cchBinFilePath;
if(m_tszBinFilePath[cchBinFilePath-1] != TEXT('\\'))
{
memcpy(tszCurPos, TEXT("\\"), sizeof(TCHAR)*2);
tszCurPos++;
}
memcpy(tszCurPos, MD_SCHEMA_FILE_NAME, sizeof(TCHAR)*(cchSchFileName+1));
//
// Now get the file info
//
{
WIN32_FIND_DATA FindFileData;
memset(&FindFileData, 0, sizeof(WIN32_FIND_DATA));
HANDLE hFindFile = FindFirstFile(tszPathPlusName, &FindFileData);
if(hFindFile == INVALID_HANDLE_VALUE)
{
hr = GetLastError();
hr = HRESULT_FROM_WIN32(hr);
goto exit;
}
FindClose(hFindFile);
//
// Set out parameters if everything succeeded
//
memcpy(io_pFileTime, &FindFileData.ftLastWriteTime, sizeof(FILETIME));
}
exit:
delete [] tszPathPlusName;
return hr;
}
HRESULT
CSchemaExtensions::GenerateIt ()
{
HRESULT hr = S_OK;
hr = GetTables ();
if (FAILED (hr))
{
return hr;
}
hr = GetColumns ();
if (FAILED (hr))
{
return hr;
}
hr = GetTags ();
if (FAILED (hr))
{
return hr;
}
hr = BuildInternalStructures ();
if (FAILED (hr))
{
return hr;
}
return hr;
}
HRESULT
CSchemaExtensions::GetTables ()
{
HRESULT hr = S_OK;
ULONG one = 1;
hr = m_spDispenser->GetTable (wszDATABASE_META, wszTABLE_TABLEMETA,
m_pQueryCells, (void *)&one, eST_QUERYFORMAT_CELLS, 0, (void **) &m_spISTTableMeta);
if (FAILED (hr))
{
return hr;
}
hr = m_spISTTableMeta->GetTableMeta (0, 0, &m_cNrTables, 0);
if (FAILED (hr))
{
return hr;
}
if (m_cNrTables == 0)
{
return S_OK;
}
m_paTableMetas = new CTableMeta [m_cNrTables];
if (m_paTableMetas == 0)
{
return E_OUTOFMEMORY;
}
for (ULONG idx =0; idx < m_cNrTables; ++idx)
{
hr = m_spISTTableMeta->GetColumnValues (idx, sizeof (tTABLEMETARow)/sizeof (ULONG *), 0, 0, (void **) &m_paTableMetas[idx].TableMeta);
if (FAILED (hr))
{
return hr;
}
if (m_paTableMetas[idx].ColCount () > 0)
{
// set number of columns
m_paTableMetas[idx].paColumns = new LPCColumnMeta[m_paTableMetas[idx].ColCount()];
if (m_paTableMetas[idx].paColumns == 0)
{
return E_OUTOFMEMORY;
}
}
}
// and sort them by table name
qsort (m_paTableMetas, m_cNrTables, sizeof (CTableMeta), CompTableMeta);
return hr;
}
HRESULT
CSchemaExtensions::GetColumns ()
{
HRESULT hr = S_OK;
ULONG one = 1;
hr = m_spDispenser->GetTable (wszDATABASE_META, wszTABLE_COLUMNMETA,
m_pQueryCells, (void *)&one, eST_QUERYFORMAT_CELLS, 0, (void **) &m_spISTColumnMeta);
if (FAILED (hr))
{
return hr;
}
hr = m_spISTColumnMeta->GetTableMeta (0, 0, &m_cNrColumns, 0);
if (FAILED (hr))
{
return hr;
}
if (m_cNrColumns == 0)
{
return E_FAIL;
}
m_paColumnMetas = new CColumnMeta[m_cNrColumns];
if (m_paColumnMetas == 0)
{
return E_OUTOFMEMORY;
}
ULONG acbSizes[cCOLUMNMETA_NumberOfColumns];
for (ULONG idx =0; idx < m_cNrColumns; ++idx)
{
hr = m_spISTColumnMeta->GetColumnValues (idx, sizeof (tCOLUMNMETARow)/sizeof (ULONG *), 0, acbSizes, (void **) &m_paColumnMetas[idx].ColumnMeta);
m_paColumnMetas[idx].cbDefaultValue = acbSizes[iCOLUMNMETA_DefaultValue];
if (FAILED (hr))
{
return hr;
}
}
qsort (m_paColumnMetas, m_cNrColumns, sizeof (CColumnMeta), CompColumnMetas);
return hr;
}
HRESULT
CSchemaExtensions::GetTags ()
{
HRESULT hr = S_OK;
ULONG one = 1;
hr = m_spDispenser->GetTable (wszDATABASE_META, wszTABLE_TAGMETA,
m_pQueryCells, (void *)&one, eST_QUERYFORMAT_CELLS, 0, (void **) &m_spISTTagMeta);
if (FAILED (hr))
{
return hr;
}
hr = m_spISTTagMeta->GetTableMeta (0, 0, &m_cNrTags, 0);
if (FAILED (hr))
{
return hr;
}
if (m_cNrTags == 0)
{
return E_FAIL;
}
m_paTags = new tTAGMETARow[m_cNrTags];
if (m_paTags == 0)
{
return E_OUTOFMEMORY;
}
for (ULONG idx =0; idx < m_cNrTags; ++idx)
{
hr = m_spISTTagMeta->GetColumnValues (idx, sizeof (tTAGMETARow)/sizeof (ULONG *), 0, 0, (void **) &m_paTags[idx]);
if (FAILED (hr))
{
return hr;
}
}
qsort (m_paTags, m_cNrTags, sizeof (tTAGMETARow), CompTagMetas);
return hr;
}
HRESULT
CSchemaExtensions::BuildInternalStructures ()
{
HRESULT hr = S_OK;
// attach the tags to the tables
ULONG idx = 0;
while (idx < m_cNrTags)
{
// find the correct column
CColumnMeta dummyColumnMeta;
dummyColumnMeta.ColumnMeta.pTable = m_paTags[idx].pTable;
dummyColumnMeta.ColumnMeta.pIndex = m_paTags[idx].pColumnIndex;
// get column
CColumnMeta *pColMeta = (CColumnMeta *) bsearch (&dummyColumnMeta,
m_paColumnMetas,
m_cNrColumns,
sizeof (CColumnMeta),
CompColumnMetas);
DBG_ASSERT (pColMeta != NULL);
DBG_ASSERT (wcscmp(pColMeta->ColumnMeta.pTable, m_paTags[idx].pTable) == 0 &&
*pColMeta->ColumnMeta.pIndex == *m_paTags[idx].pColumnIndex);
// get count
ULONG iStartIdx = idx;
pColMeta->cNrTags = 1;
idx++; // skip over this element
while ((idx < m_cNrTags) &&
(wcscmp(pColMeta->ColumnMeta.pTable, m_paTags[idx].pTable) == 0) &&
(*pColMeta->ColumnMeta.pIndex == *m_paTags[idx].pColumnIndex))
{
idx++;
pColMeta->cNrTags += 1;
}
if (pColMeta->cNrTags > 0)
{
// allocate memory and copy the stuff
pColMeta->paTags = new LPtTAGMETA[pColMeta->cNrTags];
if (pColMeta->paTags == 0)
{
return E_OUTOFMEMORY;
}
for (ULONG tagIdx = 0; tagIdx < pColMeta->cNrTags; ++tagIdx)
{
pColMeta->paTags[tagIdx] = &m_paTags[iStartIdx + tagIdx];
}
}
}
// attach the columns to the tables
for (idx=0; idx < m_cNrColumns; ++idx)
{
CTableMeta dummyTableMeta;
dummyTableMeta.TableMeta.pInternalName = m_paColumnMetas[idx].ColumnMeta.pTable;
// find table
CTableMeta *pTableMeta = (CTableMeta *) bsearch (&dummyTableMeta, m_paTableMetas,
m_cNrTables,
sizeof (CTableMeta),
CompTableMeta);
DBG_ASSERT (pTableMeta != 0);
DBG_ASSERT (wcscmp(pTableMeta->TableMeta.pInternalName, m_paColumnMetas[idx].ColumnMeta.pTable) == 0);
// add Column to table
ULONG iColumnIndex = *(m_paColumnMetas[idx].ColumnMeta.pIndex);
DBG_ASSERT (iColumnIndex < pTableMeta->ColCount ());
pTableMeta->paColumns[iColumnIndex] = &m_paColumnMetas[idx];
}
return hr;
}
CTableMeta* CSchemaExtensions::EnumTables(ULONG *io_idx)
{
DBG_ASSERT(io_idx != NULL);
CTableMeta* pRet = NULL;
while(1)
{
if(*io_idx < m_cNrTables)
{
pRet = &m_paTableMetas[*io_idx];
if( _wcsicmp(pRet->TableMeta.pDatabase, g_wszDatabaseName) == 0 &&
!(*pRet->TableMeta.pMetaFlags & fTABLEMETA_HIDDEN) )
{
*io_idx = 1 + *io_idx;
return pRet;
}
else
{
*io_idx = 1 + *io_idx;
}
}
else
{
*io_idx = 1 + *io_idx;
return NULL;
}
}
return NULL;
}