Source code of Windows XP (NT5)
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// --------------------------------------------------------------------------
// Module Name: ThemeManagerAPIRequest.cpp
//
// Copyright (c) 2000, Microsoft Corporation
//
// This file contains a class that implements the work for the theme server.
//
// History: 2000-10-10 vtan created
// 2000-11-29 vtan moved to separate file
// --------------------------------------------------------------------------
#include "StandardHeader.h"
#include "ThemeManagerAPIRequest.h"
#include <LPCThemes.h>
#include <uxthemep.h>
#include <UxThemeServer.h>
#include "RegistryResources.h"
#include "SingleThreadedExecution.h"
#include "StatusCode.h"
#include "TokenInformation.h"
// --------------------------------------------------------------------------
// CThemeManagerAPIRequest::s_pSessionData
//
// Purpose: Static member variables.
//
// History: 2000-11-09 vtan created
// --------------------------------------------------------------------------
CDynamicCountedObjectArray* CThemeManagerAPIRequest::s_pSessionData = NULL;
CCriticalSection* CThemeManagerAPIRequest::s_pLock = NULL;
DWORD CThemeManagerAPIRequest::s_dwServerChangeNumber = 0;
const TCHAR CThemeManagerAPIRequest::s_szServerChangeNumberValue[] = TEXT("ServerChangeNumber");
// --------------------------------------------------------------------------
// CThemeManagerAPIRequest::CThemeManagerAPIRequest
//
// Arguments: pAPIDispatcher = CAPIDispatcher that calls this object.
// pAPIConnection = CAPIConnection for access change.
//
// Returns: <none>
//
// Purpose: Constructor for the CThemeManagerAPIRequest class. It just passes the
// control to the super class.
//
// History: 2000-10-10 vtan created
// --------------------------------------------------------------------------
CThemeManagerAPIRequest::CThemeManagerAPIRequest (CAPIDispatcher* pAPIDispatcher) :
CAPIRequest(pAPIDispatcher),
_hToken(NULL),
_pSessionData(NULL)
{
}
// --------------------------------------------------------------------------
// CThemeManagerAPIRequest::CThemeManagerAPIRequest
//
// Arguments: pAPIDispatcher = CAPIDispatcher that calls this object.
// pAPIConnection = CAPIConnection for access change.
// portMessage = CPortMessage to copy construct.
//
// Returns: <none>
//
// Purpose: Constructor for the CThemeManagerAPIRequest class. It just
// passes the control to the super class.
//
// History: 2000-10-10 vtan created
// --------------------------------------------------------------------------
CThemeManagerAPIRequest::CThemeManagerAPIRequest (CAPIDispatcher* pAPIDispatcher, const CPortMessage& portMessage) :
CAPIRequest(pAPIDispatcher, portMessage),
_hToken(NULL),
_pSessionData(NULL)
{
}
// --------------------------------------------------------------------------
// CThemeManagerAPIRequest::~CThemeManagerAPIRequest
//
// Arguments: <none>
//
// Returns: <none>
//
// Purpose: Destructor for the CThemeManagerAPIRequest class.
//
// History: 2000-10-10 vtan created
// --------------------------------------------------------------------------
CThemeManagerAPIRequest::~CThemeManagerAPIRequest (void)
{
ASSERTMSG(_hToken == NULL, "Impersonation token not released in CThemeManagerAPIRequest::~CThemeManagerAPIRequest");
}
// --------------------------------------------------------------------------
// CThemeManagerAPIRequest::Execute
//
// Arguments: <none>
//
// Returns: NTSTATUS
//
// Purpose: Execute implementation for theme manager API requests. This
// function dispatches requests based on the API request number.
//
// History: 2000-10-10 vtan created
// --------------------------------------------------------------------------
NTSTATUS CThemeManagerAPIRequest::Execute (void)
{
NTSTATUS status;
unsigned long ulAPINumber;
ulAPINumber = reinterpret_cast<API_THEMES*>(&_data)->apiGeneric.ulAPINumber & API_GENERIC_NUMBER_MASK;
// First try and get the client session data. If this fails then
// there's no object to execute the request on. Fail it.
// Exception to this is API_THEMES_SESSIONCREATE which creates one.
// Note: GetClientSessionData will store the session data in the
// _pSessionData member variable. While doing so it will increase
// reference count on this so that it doesn't get pulled from the
// array while the API request is being executed. The reference is
// released at the end of this function.
status = GetClientSessionData();
if (NT_SUCCESS(status) || (ulAPINumber == API_THEMES_SESSIONCREATE))
{
switch (ulAPINumber)
{
case API_THEMES_THEMEHOOKSON:
status = Execute_ThemeHooksOn();
break;
case API_THEMES_THEMEHOOKSOFF:
status = Execute_ThemeHooksOff();
break;
case API_THEMES_GETSTATUSFLAGS:
status = Execute_GetStatusFlags();
break;
case API_THEMES_GETCURRENTCHANGENUMBER:
status = Execute_GetCurrentChangeNumber();
break;
case API_THEMES_GETNEWCHANGENUMBER:
status = Execute_GetNewChangeNumber();
break;
case API_THEMES_SETGLOBALTHEME:
status = Execute_SetGlobalTheme();
break;
case API_THEMES_MARKSECTION:
status = Execute_MarkSection();
break;
case API_THEMES_GETGLOBALTHEME:
status = Execute_GetGlobalTheme();
break;
case API_THEMES_CHECKTHEMESIGNATURE:
status = Execute_CheckThemeSignature();
break;
case API_THEMES_LOADTHEME:
status = Execute_LoadTheme();
break;
case API_THEMES_USERLOGON:
status = Execute_UserLogon();
break;
case API_THEMES_USERLOGOFF:
status = Execute_UserLogoff();
break;
case API_THEMES_SESSIONCREATE:
status = Execute_SessionCreate();
break;
case API_THEMES_SESSIONDESTROY:
status = Execute_SessionDestroy();
break;
case API_THEMES_PING:
status = Execute_Ping();
break;
default:
DISPLAYMSG("Unknown API request in CThemeManagerAPIRequest::Execute");
status = STATUS_NOT_IMPLEMENTED;
break;
}
}
// If the execution function needed to impersonate the client then
// revert here and release the token used.
if (_hToken != NULL)
{
TBOOL(RevertToSelf());
ReleaseHandle(_hToken);
}
// Release the _pSessionData object now. NULL it out to prevent
// accidentally using it after being released.
if (_pSessionData != NULL)
{
_pSessionData->Release();
_pSessionData = NULL;
}
// Return to caller.
TSTATUS(status);
return(status);
}
// --------------------------------------------------------------------------
// CThemeManagerAPIRequest::SessionDestroy
//
// Arguments: dwSessionID = Session ID to destroy.
//
// Returns: NTSTATUS
//
// Purpose: External entry point for session client (winlogon) watcher.
// When winlogon dies we clean up the session information for
// that session and release resources.
//
// History: 2000-12-09 vtan created
// --------------------------------------------------------------------------
NTSTATUS CThemeManagerAPIRequest::SessionDestroy (DWORD dwSessionID)
{
NTSTATUS status;
int iIndex;
CSingleThreadedExecution lock(*s_pLock);
iIndex = FindIndexSessionData(dwSessionID);
if (iIndex >= 0)
{
status = s_pSessionData->Remove(iIndex);
}
else
{
status = STATUS_SUCCESS;
}
return(status);
}
// --------------------------------------------------------------------------
// CThemeManagerAPIRequest::InitializeServerChangeNumber
//
// Arguments: <none>
//
// Returns: NTSTATUS
//
// Purpose: Initializes the static server change number. Every time the
// service starts up this number is incremented. If the number
// isn't present then 0 is used.
//
// History: 2000-12-09 vtan created
// 2000-12-09 vtan split from StaticInitialize
// --------------------------------------------------------------------------
NTSTATUS CThemeManagerAPIRequest::InitializeServerChangeNumber (void)
{
LONG lErrorCodeOpen, lErrorCodeRead;
DWORD dwServerChangeNumber;
CRegKey regKey;
dwServerChangeNumber = s_dwServerChangeNumber;
// Initialize the static member variable now in case of failure.
// We ignore failures because at GUI setup the key does NOT exist
// because the server dll hasn't been regsvr'd yet. After GUI setup
// this gets regsvr'd and the key exists and we are happy campers.
lErrorCodeOpen = regKey.Open(HKEY_LOCAL_MACHINE,
TEXT("SOFTWARE\\Microsoft\\Windows\\CurrentVersion\\ThemeManager"),
KEY_QUERY_VALUE | KEY_SET_VALUE);
if (ERROR_SUCCESS == lErrorCodeOpen)
{
lErrorCodeRead = regKey.GetDWORD(s_szServerChangeNumberValue, dwServerChangeNumber);
}
else
{
lErrorCodeRead = ERROR_FILE_NOT_FOUND;
}
dwServerChangeNumber = static_cast<WORD>(dwServerChangeNumber + 1);
if ((ERROR_SUCCESS == lErrorCodeOpen) && (ERROR_SUCCESS == lErrorCodeRead))
{
TW32(regKey.SetDWORD(s_szServerChangeNumberValue, dwServerChangeNumber));
}
s_dwServerChangeNumber = dwServerChangeNumber;
return(STATUS_SUCCESS);
}
// --------------------------------------------------------------------------
// CThemeManagerAPIRequest::StaticInitialize
//
// Arguments: <none>
//
// Returns: NTSTATUS
//
// Purpose: Static initializer for the class.
//
// History: 2000-10-10 vtan created
// --------------------------------------------------------------------------
NTSTATUS CThemeManagerAPIRequest::StaticInitialize (void)
{
NTSTATUS status;
status = STATUS_SUCCESS;
if (s_pLock == NULL)
{
s_pLock = new CCriticalSection;
if (s_pLock != NULL)
{
status = s_pLock->Status();
if (!NT_SUCCESS(status))
{
delete s_pLock;
s_pLock = NULL;
}
}
else
{
status = STATUS_NO_MEMORY;
}
}
return(status);
}
// --------------------------------------------------------------------------
// CThemeManagerAPIRequest::StaticTerminate
//
// Arguments: <none>
//
// Returns: NTSTATUS
//
// Purpose: Static destructor for the class.
//
// History: 2000-10-10 vtan created
// --------------------------------------------------------------------------
NTSTATUS CThemeManagerAPIRequest::StaticTerminate (void)
{
if (s_pLock != NULL)
{
delete s_pLock;
s_pLock = NULL;
}
return(STATUS_SUCCESS);
}
// --------------------------------------------------------------------------
// CThemeManagerAPIRequest::ArrayInitialize
//
// Arguments: <none>
//
// Returns: NTSTATUS
//
// Purpose: Initializes (allocates) the session array.
//
// History: 2001-01-05 vtan created
// --------------------------------------------------------------------------
NTSTATUS CThemeManagerAPIRequest::ArrayInitialize (void)
{
NTSTATUS status;
CSingleThreadedExecution lock(*s_pLock);
status = STATUS_SUCCESS;
if (s_pSessionData == NULL)
{
s_pSessionData = new CDynamicCountedObjectArray;
if (s_pSessionData == NULL)
{
status = STATUS_NO_MEMORY;
}
}
return(status);
}
// --------------------------------------------------------------------------
// CThemeManagerAPIRequest::ArrayTerminate
//
// Arguments: <none>
//
// Returns: NTSTATUS
//
// Purpose: Releases all objects in the session array (removes the waits)
// and releases the session array object.
//
// History: 2001-01-05 vtan created
// --------------------------------------------------------------------------
NTSTATUS CThemeManagerAPIRequest::ArrayTerminate (void)
{
CSingleThreadedExecution lock(*s_pLock);
if (s_pSessionData != NULL)
{
int i, iLimit;
iLimit = s_pSessionData->GetCount();
for (i = iLimit - 1; i >= 0; --i)
{
TSTATUS(static_cast<CThemeManagerSessionData*>(s_pSessionData->Get(i))->Cleanup());
TSTATUS(s_pSessionData->Remove(i));
}
delete s_pSessionData;
s_pSessionData = NULL;
}
return(STATUS_SUCCESS);
}
// --------------------------------------------------------------------------
// CThemeManagerAPIRequest::ImpersonateClientIfRequired
//
// Arguments: <none>
//
// Returns: NTSTATUS
//
// Purpose: Impersonates the client if the client is NOT the SYSTEM.
// There's usually no point impersonating the system unless the
// token is actually a filtered token.
//
// History: 2000-10-19 vtan created
// --------------------------------------------------------------------------
NTSTATUS CThemeManagerAPIRequest::ImpersonateClientIfRequired (void)
{
NTSTATUS status;
status = OpenClientToken(_hToken);
if (NT_SUCCESS(status))
{
CTokenInformation tokenInformation(_hToken);
if (tokenInformation.IsUserTheSystem())
{
ReleaseHandle(_hToken);
status = STATUS_SUCCESS;
}
else if (ImpersonateLoggedOnUser(_hToken) != FALSE)
{
status = STATUS_SUCCESS;
}
else
{
status = CStatusCode::StatusCodeOfLastError();
}
}
return(status);
}
// --------------------------------------------------------------------------
// CThemeManagerAPIRequest::ClientHasTcbPrivilege
//
// Arguments: <none>
//
// Returns: NTSTATUS
//
// Purpose: Returns whether the client has the SE_TCB_PRIVILEGE as a
// status code.
//
// History: 2000-11-09 vtan created
// --------------------------------------------------------------------------
NTSTATUS CThemeManagerAPIRequest::ClientHasTcbPrivilege (void)
{
NTSTATUS status;
HANDLE hTokenClient;
if (OpenProcessToken(_pAPIDispatcher->GetClientProcess(),
TOKEN_QUERY,
&hTokenClient) != FALSE)
{
CTokenInformation tokenInformation(hTokenClient);
if (tokenInformation.UserHasPrivilege(SE_TCB_PRIVILEGE))
{
status = STATUS_SUCCESS;
}
else
{
status = STATUS_ACCESS_DENIED;
}
TBOOL(CloseHandle(hTokenClient));
}
else
{
status = CStatusCode::StatusCodeOfLastError();
}
return(status);
}
// --------------------------------------------------------------------------
// CThemeManagerAPIRequest::FindIndexSessionData
//
// Arguments: dwSessionID = Session ID to find.
//
// Returns: int
//
// Purpose: Iterates the session data array looking for the sessions that
// matches the given session.
//
// History: 2000-11-30 vtan created
// --------------------------------------------------------------------------
int CThemeManagerAPIRequest::FindIndexSessionData (DWORD dwSessionID)
{
int iIndex;
iIndex = -1;
if ((s_pLock != NULL) && (s_pSessionData != NULL))
{
int i, iLimit;
ASSERTMSG(s_pLock->IsOwned(), "s_pLock must be acquired in CThemeManagerAPIRequest::FindIndexSessionData");
iLimit = s_pSessionData->GetCount();
for (i = 0; (iIndex < 0) && (i < iLimit); ++i)
{
CThemeManagerSessionData *pSessionData;
pSessionData = static_cast<CThemeManagerSessionData*>(s_pSessionData->Get(i));
if ((pSessionData != NULL) && (pSessionData->EqualSessionID(dwSessionID)))
{
iIndex = i;
}
}
}
return(iIndex);
}
// --------------------------------------------------------------------------
// CThemeManagerAPIRequest::GetClientSessionData
//
// Arguments: <none>
//
// Returns: NTSTATUS
//
// Purpose: Retrieves the session data associated with the client's
// session ID. This abstracts the information from uxtheme's
// loader code and just passes it an object it knows how to deal
// with.
//
// History: 2000-11-09 vtan created
// --------------------------------------------------------------------------
NTSTATUS CThemeManagerAPIRequest::GetClientSessionData (void)
{
NTSTATUS status;
int iIndex;
CSingleThreadedExecution lock(*s_pLock);
status = STATUS_UNSUCCESSFUL;
iIndex = FindIndexSessionData(_pAPIDispatcher->GetClientSessionID());
if (iIndex >= 0)
{
_pSessionData = static_cast<CThemeManagerSessionData*>(s_pSessionData->Get(iIndex));
if (_pSessionData != NULL)
{
_pSessionData->AddRef();
status = STATUS_SUCCESS;
}
}
else
{
_pSessionData = NULL;
}
return(status);
}
// --------------------------------------------------------------------------
// CThemeManagerAPIRequest::Execute_ThemeHooksOn
//
// Arguments: <none>
//
// Returns: NTSTATUS
//
// Purpose: Handles API_THEMES_THEMEHOOKSON.
//
// History: 2000-10-10 vtan created
// --------------------------------------------------------------------------
NTSTATUS CThemeManagerAPIRequest::Execute_ThemeHooksOn (void)
{
NTSTATUS status;
status = ImpersonateClientIfRequired();
if (NT_SUCCESS(status))
{
API_THEMES_THEMEHOOKSON_OUT *pAPIOut;
pAPIOut = &reinterpret_cast<API_THEMES*>(&_data)->apiSpecific.apiThemeHooksOn.out;
pAPIOut->hr = ThemeHooksOn(_pSessionData->GetData());
}
SetDataLength(sizeof(API_THEMES));
return(status);
}
// --------------------------------------------------------------------------
// CThemeManagerAPIRequest::Execute_ThemeHooksOff
//
// Arguments: <none>
//
// Returns: NTSTATUS
//
// Purpose: Handles API_THEMES_THEMEHOOKSOFF.
//
// History: 2000-10-10 vtan created
// --------------------------------------------------------------------------
NTSTATUS CThemeManagerAPIRequest::Execute_ThemeHooksOff (void)
{
NTSTATUS status;
status = ImpersonateClientIfRequired();
if (NT_SUCCESS(status))
{
API_THEMES_THEMEHOOKSOFF_OUT *pAPIOut;
pAPIOut = &reinterpret_cast<API_THEMES*>(&_data)->apiSpecific.apiThemeHooksOff.out;
pAPIOut->hr = ThemeHooksOff(_pSessionData->GetData());
}
SetDataLength(sizeof(API_THEMES));
return(status);
}
// --------------------------------------------------------------------------
// CThemeManagerAPIRequest::Execute_GetStatusFlags
//
// Arguments: <none>
//
// Returns: NTSTATUS
//
// Purpose: Handles API_THEMES_GETSTATUSFLAGS.
//
// History: 2000-10-10 vtan created
// --------------------------------------------------------------------------
NTSTATUS CThemeManagerAPIRequest::Execute_GetStatusFlags (void)
{
NTSTATUS status;
status = ImpersonateClientIfRequired();
if (NT_SUCCESS(status))
{
DWORD dwFlags;
API_THEMES_GETSTATUSFLAGS_OUT *pAPIOut;
pAPIOut = &reinterpret_cast<API_THEMES*>(&_data)->apiSpecific.apiGetStatusFlags.out;
dwFlags = QTS_AVAILABLE;
if (AreThemeHooksActive(_pSessionData->GetData()))
{
dwFlags |= QTS_RUNNING;
}
pAPIOut->dwFlags = dwFlags;
}
SetDataLength(sizeof(API_THEMES));
return(status);
}
// --------------------------------------------------------------------------
// CThemeManagerAPIRequest::Execute_GetCurrentChangeNumber
//
// Arguments: <none>
//
// Returns: NTSTATUS
//
// Purpose: Handles API_THEMES_GETCURRENTCHANGENUMBER.
//
// History: 2000-10-10 vtan created
// --------------------------------------------------------------------------
NTSTATUS CThemeManagerAPIRequest::Execute_GetCurrentChangeNumber (void)
{
NTSTATUS status;
status = ImpersonateClientIfRequired();
if (NT_SUCCESS(status))
{
API_THEMES_GETCURRENTCHANGENUMBER_OUT *pAPIOut;
pAPIOut = &reinterpret_cast<API_THEMES*>(&_data)->apiSpecific.apiGetCurrentChangeNumber.out;
pAPIOut->iChangeNumber = GetCurrentChangeNumber(_pSessionData->GetData());
}
SetDataLength(sizeof(API_THEMES));
return(status);
}
// --------------------------------------------------------------------------
// CThemeManagerAPIRequest::Execute_GetNewChangeNumber
//
// Arguments: <none>
//
// Returns: NTSTATUS
//
// Purpose: Handles API_THEMES_GETNEWCHANGENUMBER.
//
// History: 2000-10-10 vtan created
// --------------------------------------------------------------------------
NTSTATUS CThemeManagerAPIRequest::Execute_GetNewChangeNumber (void)
{
NTSTATUS status;
status = ImpersonateClientIfRequired();
if (NT_SUCCESS(status))
{
API_THEMES_GETNEWCHANGENUMBER_OUT *pAPIOut;
pAPIOut = &reinterpret_cast<API_THEMES*>(&_data)->apiSpecific.apiGetNewChangeNumber.out;
pAPIOut->iChangeNumber = GetNewChangeNumber(_pSessionData->GetData());
}
SetDataLength(sizeof(API_THEMES));
return(status);
}
// --------------------------------------------------------------------------
// CThemeManagerAPIRequest::Execute_SetGlobalTheme
//
// Arguments: <none>
//
// Returns: NTSTATUS
//
// Purpose: Handles API_THEMES_SETGLOBALTHEME.
//
// History: 2000-10-10 vtan created
// --------------------------------------------------------------------------
NTSTATUS CThemeManagerAPIRequest::Execute_SetGlobalTheme (void)
{
NTSTATUS status;
// Note: we must not impersonate the user here, since we need write access to the section
HANDLE hSection;
API_THEMES_SETGLOBALTHEME_IN *pAPIIn;
API_THEMES_SETGLOBALTHEME_OUT *pAPIOut;
pAPIIn = &reinterpret_cast<API_THEMES*>(&_data)->apiSpecific.apiSetGlobalTheme.in;
pAPIOut = &reinterpret_cast<API_THEMES*>(&_data)->apiSpecific.apiSetGlobalTheme.out;
if (pAPIIn->hSection != NULL)
{
if (DuplicateHandle(_pAPIDispatcher->GetClientProcess(),
pAPIIn->hSection,
GetCurrentProcess(),
&hSection,
FILE_MAP_ALL_ACCESS,
FALSE,
0) != FALSE)
{
status = STATUS_SUCCESS;
}
else
{
status = CStatusCode::StatusCodeOfLastError();
}
}
else
{
hSection = NULL;
status = STATUS_SUCCESS;
}
if (NT_SUCCESS(status))
{
pAPIOut->hr = SetGlobalTheme(_pSessionData->GetData(), hSection);
if (hSection != NULL)
{
TBOOL(CloseHandle(hSection));
}
}
else
{
pAPIOut->hr = HRESULT_FROM_NT(status);
}
SetDataLength(sizeof(API_THEMES));
return(STATUS_SUCCESS);
}
// --------------------------------------------------------------------------
// CThemeManagerAPIRequest::Execute_MarkSection
//
// Arguments: <none>
//
// Returns: NTSTATUS
//
// Purpose: Handles API_THEMES_MARKSECTION.
//
// History: 2001-05-08 lmouton created
// --------------------------------------------------------------------------
NTSTATUS CThemeManagerAPIRequest::Execute_MarkSection (void)
{
NTSTATUS status;
// Note: we must not impersonate the user here, since we need write access to the section
HANDLE hSection;
DWORD dwAdd;
DWORD dwRemove;
API_THEMES_MARKSECTION_IN *pAPIIn;
API_THEMES_MARKSECTION_OUT *pAPIOut;
pAPIIn = &reinterpret_cast<API_THEMES*>(&_data)->apiSpecific.apiMarkSection.in;
pAPIOut = &reinterpret_cast<API_THEMES*>(&_data)->apiSpecific.apiMarkSection.out;
dwAdd = pAPIIn->dwAdd;
dwRemove = pAPIIn->dwRemove;
if (pAPIIn->hSection != NULL)
{
if (DuplicateHandle(_pAPIDispatcher->GetClientProcess(),
pAPIIn->hSection,
GetCurrentProcess(),
&hSection,
FILE_MAP_ALL_ACCESS,
FALSE,
0) != FALSE)
{
status = STATUS_SUCCESS;
}
else
{
status = CStatusCode::StatusCodeOfLastError();
DISPLAYMSG("Execute_MarkSection: Can't get a write handle");
}
}
else
{
hSection = NULL;
status = STATUS_SUCCESS;
}
if (NT_SUCCESS(status))
{
if (hSection != NULL)
{
MarkSection(hSection, dwAdd, dwRemove);
TBOOL(CloseHandle(hSection));
}
}
SetDataLength(sizeof(API_THEMES));
return(STATUS_SUCCESS);
}
// --------------------------------------------------------------------------
// CThemeManagerAPIRequest::Execute_GetGlobalTheme
//
// Arguments: <none>
//
// Returns: NTSTATUS
//
// Purpose: Handles API_THEMES_GETGLOBALTHEME.
//
// History: 2000-10-10 vtan created
// --------------------------------------------------------------------------
NTSTATUS CThemeManagerAPIRequest::Execute_GetGlobalTheme (void)
{
NTSTATUS status;
status = ImpersonateClientIfRequired();
if (NT_SUCCESS(status))
{
HRESULT hr;
HANDLE hSection;
API_THEMES_GETGLOBALTHEME_OUT *pAPIOut;
pAPIOut = &reinterpret_cast<API_THEMES*>(&_data)->apiSpecific.apiGetGlobalTheme.out;
hr = GetGlobalTheme(_pSessionData->GetData(), &hSection);
if (SUCCEEDED(hr) && (hSection != NULL))
{
if (DuplicateHandle(GetCurrentProcess(),
hSection,
_pAPIDispatcher->GetClientProcess(),
&pAPIOut->hSection,
FILE_MAP_READ,
FALSE,
0) != FALSE)
{
hr = S_OK;
}
else
{
DWORD dwErrorCode;
dwErrorCode = GetLastError();
hr = HRESULT_FROM_WIN32(dwErrorCode);
}
TBOOL(CloseHandle(hSection));
}
pAPIOut->hr = hr;
}
SetDataLength(sizeof(API_THEMES));
return(status);
}
// --------------------------------------------------------------------------
// LOADTHEME_STRINGS + supporting functions
//
// Purpose: Manages and validates LoadTheme string parameters
//
// History: 2002-02-26 scotthan created
// --------------------------------------------------------------------------
typedef struct
{
LPWSTR pszFilename;
LPWSTR pszColor;
LPWSTR pszSize;
} LOADTHEME_STRINGS;
#define MAX_THEME_STRING MAX_PATH
// --------------------------------------------------------------------------
void _FreeThemeStrings( IN LOADTHEME_STRINGS* plts )
{
if( plts )
{
_FreeMappedClientString(plts->pszFilename);
_FreeMappedClientString(plts->pszColor);
_FreeMappedClientString(plts->pszSize);
delete plts;
}
}
// --------------------------------------------------------------------------
NTSTATUS _AllocAndMapThemeStrings(
IN HANDLE hProcessClient,
IN LPCWSTR pszFilenameIn,
IN UINT cchFilenameIn,
IN LPCWSTR pszColorIn,
IN UINT cchColorIn,
IN LPCWSTR pszSizeIn,
IN UINT cchSizeIn,
OUT LOADTHEME_STRINGS** pplts )
{
NTSTATUS status;
ASSERTMSG(pplts != NULL, "_AllocAndMapThemeStrings: NULL outbound parameter, LOADTHEME_STRINGS**.");
ASSERTMSG(hProcessClient != NULL, "_AllocAndMapThemeStrings: NULL process handle.");
// note: cchFileNameIn, cchColorIn, cchSizeIn are char counts that include the NULL terminus.
if( pszFilenameIn && pszColorIn && pszSizeIn &&
cchFilenameIn > 0 && cchColorIn > 0 && cchSizeIn > 0 &&
cchFilenameIn <= MAX_THEME_STRING && cchColorIn <= MAX_THEME_STRING && cchSizeIn <= MAX_THEME_STRING )
{
*pplts = NULL;
LOADTHEME_STRINGS *plts = new LOADTHEME_STRINGS;
if( plts != NULL )
{
ZeroMemory(plts, sizeof(*plts));
status = _AllocAndMapClientString(hProcessClient, pszFilenameIn, cchFilenameIn, MAX_THEME_STRING, &plts->pszFilename);
if( NT_SUCCESS(status) )
{
status = _AllocAndMapClientString(hProcessClient, pszColorIn, cchColorIn, MAX_THEME_STRING, &plts->pszColor);
if( NT_SUCCESS(status) )
{
status = _AllocAndMapClientString(hProcessClient, pszSizeIn, cchSizeIn, MAX_THEME_STRING, &plts->pszSize);
if( NT_SUCCESS(status) )
{
*pplts = plts;
}
}
}
if( !NT_SUCCESS(status) )
{
_FreeThemeStrings(plts);
}
}
else
{
status = STATUS_NO_MEMORY;
}
}
else
{
status = STATUS_INVALID_PARAMETER;
}
return status;
}
// --------------------------------------------------------------------------
// CThemeManagerAPIRequest::Execute_CheckThemeSignature
//
// Arguments: <none>
//
// Returns: NTSTATUS
//
// Purpose: Handles API_THEMES_CHECKTHEMESIGNATURE.
//
// History: 2000-10-10 vtan created
// --------------------------------------------------------------------------
NTSTATUS CThemeManagerAPIRequest::Execute_CheckThemeSignature (void)
{
NTSTATUS status;
status = ImpersonateClientIfRequired();
if (NT_SUCCESS(status))
{
API_THEMES_CHECKTHEMESIGNATURE_IN *pAPIIn;
API_THEMES_CHECKTHEMESIGNATURE_OUT *pAPIOut;
LPWSTR pszThemeFileName;
pAPIIn = &reinterpret_cast<API_THEMES*>(&_data)->apiSpecific.apiCheckThemeSignature.in;
pAPIOut = &reinterpret_cast<API_THEMES*>(&_data)->apiSpecific.apiCheckThemeSignature.out;
status = _AllocAndMapClientString(_pAPIDispatcher->GetClientProcess(),
pAPIIn->pszName,
pAPIIn->cchName,
MAX_PATH,
&pszThemeFileName);
if( NT_SUCCESS(status) )
{
pAPIOut->hr = CheckThemeSignature(pszThemeFileName);
status = STATUS_SUCCESS;
_FreeMappedClientString(pszThemeFileName);
}
}
SetDataLength(sizeof(API_THEMES));
return(status);
}
// --------------------------------------------------------------------------
// CThemeManagerAPIRequest::Execute_LoadTheme
//
// Arguments: <none>
//
// Returns: NTSTATUS
//
// Purpose: Handles API_THEMES_LOADTHEME.
//
// History: 2000-10-10 vtan created
// --------------------------------------------------------------------------
NTSTATUS CThemeManagerAPIRequest::Execute_LoadTheme (void)
{
NTSTATUS status;
status = ImpersonateClientIfRequired();
if (NT_SUCCESS(status))
{
HANDLE hProcessClient;
API_THEMES_LOADTHEME_IN *pAPIIn;
API_THEMES_LOADTHEME_OUT *pAPIOut;
LOADTHEME_STRINGS* plts;
hProcessClient = _pAPIDispatcher->GetClientProcess();
pAPIIn = &reinterpret_cast<API_THEMES*>(&_data)->apiSpecific.apiLoadTheme.in;
pAPIOut = &reinterpret_cast<API_THEMES*>(&_data)->apiSpecific.apiLoadTheme.out;
status = _AllocAndMapThemeStrings( hProcessClient, pAPIIn->pszName, pAPIIn->cchName,
pAPIIn->pszColor, pAPIIn->cchColor,
pAPIIn->pszSize, pAPIIn->cchSize,
&plts );
if( NT_SUCCESS(status) )
{
HANDLE hSectionIn, hSectionOut;
if (DuplicateHandle(hProcessClient,
pAPIIn->hSection,
GetCurrentProcess(),
&hSectionIn,
FILE_MAP_ALL_ACCESS,
FALSE,
0) != FALSE)
{
status = STATUS_SUCCESS;
// Warning: this function will revert to self in order to create the section in system context.
// Impersonate the user again after it if needed
pAPIOut->hr = LoadTheme(_pSessionData->GetData(), hSectionIn, &hSectionOut,
plts->pszFilename, plts->pszColor, plts->pszSize);
if (SUCCEEDED(pAPIOut->hr))
{
// Still running in the system context here
if (DuplicateHandle(GetCurrentProcess(),
hSectionOut,
hProcessClient,
&pAPIOut->hSection,
FILE_MAP_READ,
FALSE,
0) == FALSE)
{
status = CStatusCode::StatusCodeOfLastError();
}
TBOOL(CloseHandle(hSectionOut));
}
TBOOL(CloseHandle(hSectionIn));
}
else
{
status = CStatusCode::StatusCodeOfLastError();
}
_FreeThemeStrings(plts);
}
}
SetDataLength(sizeof(API_THEMES));
return(status);
}
// --------------------------------------------------------------------------
// CThemeManagerAPIRequest::Execute_UserLogon
//
// Arguments: <none>
//
// Returns: NTSTATUS
//
// Purpose: Handles API_THEMES_USERLOGON. To call this API you must have
// the SE_TCB_PRIVILEGE in your token.
//
// History: 2000-10-12 vtan created
// --------------------------------------------------------------------------
NTSTATUS CThemeManagerAPIRequest::Execute_UserLogon (void)
{
NTSTATUS status;
status = ClientHasTcbPrivilege();
if (NT_SUCCESS(status))
{
HANDLE hToken;
API_THEMES_USERLOGON_IN *pAPIIn;
pAPIIn = &reinterpret_cast<API_THEMES*>(&_data)->apiSpecific.apiUserLogon.in;
if (DuplicateHandle(_pAPIDispatcher->GetClientProcess(),
pAPIIn->hToken,
GetCurrentProcess(),
&hToken,
0,
FALSE,
DUPLICATE_SAME_ACCESS) != FALSE)
{
status = _pSessionData->UserLogon(hToken);
TBOOL(CloseHandle(hToken));
}
else
{
status = CStatusCode::StatusCodeOfLastError();
}
}
SetDataLength(sizeof(API_THEMES));
return(status);
}
// --------------------------------------------------------------------------
// CThemeManagerAPIRequest::Execute_UserLogoff
//
// Arguments: <none>
//
// Returns: NTSTATUS
//
// Purpose: Handles API_THEMES_USERLOGOFF. To call this API you must have
// the SE_TCB_PRIVILEGE in your token.
//
// History: 2000-10-12 vtan created
// --------------------------------------------------------------------------
NTSTATUS CThemeManagerAPIRequest::Execute_UserLogoff (void)
{
NTSTATUS status;
status = ClientHasTcbPrivilege();
if (NT_SUCCESS(status))
{
status = _pSessionData->UserLogoff();
}
SetDataLength(sizeof(API_THEMES));
return(status);
}
// --------------------------------------------------------------------------
// CThemeManagerAPIRequest::Execute_SessionCreate
//
// Arguments: <none>
//
// Returns: NTSTATUS
//
// Purpose: Handles API_THEMES_SESSIONCREATE. To call this API you must
// have the SE_TCB_PRIVILEGE in your token.
//
// History: 2000-11-09 vtan created
// --------------------------------------------------------------------------
NTSTATUS CThemeManagerAPIRequest::Execute_SessionCreate (void)
{
NTSTATUS status;
status = ClientHasTcbPrivilege();
if (NT_SUCCESS(status))
{
HANDLE hProcessClient;
CThemeManagerSessionData *pSessionData;
ASSERTMSG(_pSessionData == NULL, "Session data already exists in CThemeManagerAPIRequest::Execute_SessionCreate");
if (DuplicateHandle(GetCurrentProcess(),
_pAPIDispatcher->GetClientProcess(),
GetCurrentProcess(),
&hProcessClient,
PROCESS_CREATE_THREAD | PROCESS_VM_OPERATION | PROCESS_VM_READ | PROCESS_VM_WRITE | PROCESS_QUERY_INFORMATION | PROCESS_DUP_HANDLE,
FALSE,
0) != FALSE)
{
DWORD dwSessionID;
dwSessionID = _pAPIDispatcher->GetClientSessionID();
pSessionData = new CThemeManagerSessionData(dwSessionID);
if (pSessionData != NULL)
{
API_THEMES_SESSIONCREATE_IN *pAPIIn;
pAPIIn = &reinterpret_cast<API_THEMES*>(&_data)->apiSpecific.apiSessionCreate.in;
status = pSessionData->Allocate(hProcessClient,
s_dwServerChangeNumber,
pAPIIn->pfnRegister,
pAPIIn->pfnUnregister,
pAPIIn->pfnClearStockObjects,
pAPIIn->dwStackSizeReserve,
pAPIIn->dwStackSizeCommit);
if (NT_SUCCESS(status))
{
int iIndex;
CSingleThreadedExecution lock(*s_pLock);
// Find the session data in the static array. If found
// then remove the entry (don't allow duplicates).
iIndex = FindIndexSessionData(dwSessionID);
if (iIndex >= 0)
{
status = s_pSessionData->Remove(iIndex);
}
// If the static array has been destroyed (the service has been
// stopped) then don't do anything - this is not an error.
if (NT_SUCCESS(status) && (s_pSessionData != NULL))
{
status = s_pSessionData->Add(pSessionData);
}
}
pSessionData->Release();
}
else
{
status = STATUS_NO_MEMORY;
}
TBOOL(CloseHandle(hProcessClient));
}
else
{
status = CStatusCode::StatusCodeOfLastError();
}
}
SetDataLength(sizeof(API_THEMES));
return(status);
}
// --------------------------------------------------------------------------
// CThemeManagerAPIRequest::Execute_SessionDestroy
//
// Arguments: <none>
//
// Returns: NTSTATUS
//
// Purpose: Handles API_THEMES_SESSIONDESTROY. To call this API you must
// have the SE_TCB_PRIVILEGE in your token.
//
// History: 2000-11-09 vtan created
// --------------------------------------------------------------------------
NTSTATUS CThemeManagerAPIRequest::Execute_SessionDestroy (void)
{
NTSTATUS status;
status = ClientHasTcbPrivilege();
if (NT_SUCCESS(status))
{
int iIndex;
CSingleThreadedExecution lock(*s_pLock);
iIndex = FindIndexSessionData(_pAPIDispatcher->GetClientSessionID());
if (iIndex >= 0)
{
status = s_pSessionData->Remove(iIndex);
}
else
{
status = STATUS_SUCCESS;
}
}
SetDataLength(sizeof(API_THEMES));
return(status);
}
// --------------------------------------------------------------------------
// CThemeManagerAPIRequest::Execute_Ping
//
// Arguments: <none>
//
// Returns: NTSTATUS
//
// Purpose: Handles API_THEMES_PING. Tell the client we're alive.
//
// History: 2000-11-30 vtan created
// --------------------------------------------------------------------------
NTSTATUS CThemeManagerAPIRequest::Execute_Ping (void)
{
SetDataLength(sizeof(API_THEMES));
return(STATUS_SUCCESS);
}