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utils.c
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utils.c
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//? Marius Negrutiu ([email protected]) :: 2013/06/11
#include "main.h"
#include <winioctl.h>
#include <commctrl.h>
#include <intrin.h>
#define CINTERFACE
#include <prsht.h>
#include <gpedit.h>
#pragma comment (lib, "gpedit.lib")
#ifndef PBM_SETSTATE
#define PBM_SETSTATE (WM_USER+16)
#endif
// Globals
extern HINSTANCE g_hModule; /// Defined in main.c
HHOOK g_hMessageLoopHook = NULL;
// Timer cache
typedef struct _TMPAIR { int NsisCallback; UINT_PTR TimerID; } TMPAIR;
TMPAIR g_Timers[25] = {0};
//++ UtilsUnload
/// Called when the plugin unloads
VOID UtilsUnload()
{
int i;
// If still hooked, unhook the message loop
if ( g_hMessageLoopHook ) {
UnhookWindowsHookEx( g_hMessageLoopHook );
g_hMessageLoopHook = NULL;
///OutputDebugString( _T("[NSutils::MessageLoopRejectCloseWndProc] auto false\n"));
}
// Kill existing timers
for (i = 0; i < ARRAYSIZE( g_Timers ); i++) {
if (g_Timers[i].TimerID != 0) {
ULONG err = KillTimer( NULL, g_Timers[i].TimerID ) ? ERROR_SUCCESS : GetLastError();
DebugString( _T( "[NSutils::%hs] KillTimer( NSIS:%d, ID:%u, Idx:%d/%d ) == 0x%x\n" ), __FUNCTION__, g_Timers[i].NsisCallback, g_Timers[i].TimerID, i, ARRAYSIZE(g_Timers), err );
g_Timers[i].TimerID = 0;
g_Timers[i].NsisCallback = 0;
UNREFERENCED_PARAMETER( err );
}
}
}
//++ LogWriteFile
DWORD LogWriteFile(
__in HANDLE hFile,
__in LPCTSTR pszFormat,
...
)
{
DWORD err = ERROR_SUCCESS;
if ( hFile && (hFile != INVALID_HANDLE_VALUE) && pszFormat && *pszFormat ) {
TCHAR szStr[1024];
int iLen;
DWORD dwWritten;
va_list args;
va_start(args, pszFormat);
iLen = wvsprintf(szStr, pszFormat, args);
if ( GetLastError() == ERROR_SUCCESS ) {
if ( iLen < ARRAYSIZE(szStr))
szStr[iLen] = 0; /// The string is not guaranteed to be null terminated. We'll add the terminator ourselves
WriteFile( hFile, szStr, iLen * sizeof(TCHAR), &dwWritten, NULL );
} else {
err = GetLastError();
}
va_end(args);
} else {
err = ERROR_INVALID_PARAMETER;
}
return err;
}
//++ LogCreateFile
HANDLE LogCreateFile(
__in LPCTSTR pszLogFile,
__in BOOLEAN bOverwrite
)
{
HANDLE hFile = INVALID_HANDLE_VALUE;
if ( pszLogFile && *pszLogFile ) {
hFile = CreateFile( pszLogFile, GENERIC_WRITE, FILE_SHARE_READ, NULL, bOverwrite ? CREATE_ALWAYS : OPEN_ALWAYS, FILE_ATTRIBUTE_NORMAL, NULL );
if ( hFile != INVALID_HANDLE_VALUE ) {
ULARGE_INTEGER iFileSize;
if ( bOverwrite ||
((iFileSize.LowPart = GetFileSize( hFile, &iFileSize.HighPart ) != INVALID_FILE_SIZE) && ( iFileSize.QuadPart == 0 )))
{
/// New file
#ifdef _UNICODE
DWORD dwWritten;
WORD iBom = 0xFEFF;
WriteFile( hFile, &iBom, sizeof(iBom), &dwWritten, NULL );
#endif
} else {
if ( !bOverwrite ) {
/// Existing file
SetFilePointer( hFile, 0, NULL, FILE_END );
LogWriteFile( hFile, _T("\r\n"));
}
}
}
} else {
SetLastError( ERROR_INVALID_PARAMETER );
}
return hFile;
}
//++ LogCloseHandle
BOOL LogCloseHandle( __in HANDLE hFile )
{
if ( hFile && (hFile != INVALID_HANDLE_VALUE)) {
return CloseHandle( hFile );
} else {
SetLastError( ERROR_INVALID_PARAMETER );
return FALSE;
}
}
//++ IsWow64
BOOL IsWow64()
{
BOOL bIsWow64 = FALSE;
typedef BOOL (WINAPI *LPFN_ISWOW64PROCESS) (HANDLE, PBOOL);
LPFN_ISWOW64PROCESS fnIsWow64Process = (LPFN_ISWOW64PROCESS)GetProcAddress( GetModuleHandle( _T("kernel32")), "IsWow64Process" );
if ( fnIsWow64Process && fnIsWow64Process( GetCurrentProcess(), &bIsWow64 ))
return bIsWow64;
return FALSE;
}
//++ EnableWow64FsRedirection
BOOLEAN EnableWow64FsRedirection( __in BOOLEAN bEnable )
{
BOOL bRet = FALSE;
typedef BOOLEAN (WINAPI *LPFN_WOW64EW64FSR)(BOOLEAN);
LPFN_WOW64EW64FSR fnEnableFsRedir = (LPFN_WOW64EW64FSR)GetProcAddress( GetModuleHandle( _T("kernel32")), "Wow64EnableWow64FsRedirection" );
if ( fnEnableFsRedir )
bRet = fnEnableFsRedir( bEnable );
return bRet;
}
//+ Subclassing definitions
#define PROP_WNDPROC_OLD _T("NSutils.WndProc.Old")
#define PROP_WNDPROC_REFCOUNT _T("NSutils.WndProc.RefCount")
#define PROP_PROGRESSBAR_NOSTEPBACK _T("NSutils.ProgressBar.NoStepBack")
#define PROP_PROGRESSBAR_REDIRECTWND _T("NSutils.ProgressBar.RedirectWnd")
#define PROP_BNCLICKED_CALLBACK _T("NSutils.BN_CLICKED.Callback")
//++ MySubclassWindow
INT_PTR MySubclassWindow(
__in HWND hWnd,
__in WNDPROC fnWndProc
)
{
INT_PTR iRefCount = 0;
BOOLEAN bSubclassed = FALSE;
if ( GetProp( hWnd, PROP_WNDPROC_OLD )) {
/// Already subclassed
bSubclassed = TRUE;
} else {
/// Subclass now
WNDPROC fnOldWndProc = (WNDPROC)SetWindowLongPtr( hWnd, GWLP_WNDPROC, (LONG_PTR)fnWndProc );
if ( fnOldWndProc ) {
SetProp( hWnd, PROP_WNDPROC_OLD, (HANDLE)fnOldWndProc );
bSubclassed = TRUE;
}
}
// Update the reference count
if ( bSubclassed ) {
iRefCount = (INT_PTR)GetProp( hWnd, PROP_WNDPROC_REFCOUNT );
iRefCount++;
SetProp( hWnd, PROP_WNDPROC_REFCOUNT, (HANDLE)iRefCount );
}
return iRefCount;
}
//++ MyUnsubclassWindow
INT_PTR MyUnsubclassWindow(
__in HWND hWnd
)
{
INT_PTR iRefCount = 0;
WNDPROC fnOldWndProc = (WNDPROC)GetProp( hWnd, PROP_WNDPROC_OLD );
if ( fnOldWndProc ) {
// Unsubclass the window if there are no other active timers (check the refcount)
iRefCount = (INT_PTR)GetProp( hWnd, PROP_WNDPROC_REFCOUNT );
iRefCount--;
if ( iRefCount <= 0 ) {
/// Unsubclass the window
SetWindowLongPtr( hWnd, GWLP_WNDPROC, (LONG_PTR)fnOldWndProc );
RemoveProp( hWnd, PROP_WNDPROC_OLD );
RemoveProp( hWnd, PROP_WNDPROC_REFCOUNT );
} else {
/// Decrement the refcount
SetProp( hWnd, PROP_WNDPROC_REFCOUNT, (HANDLE)iRefCount );
}
}
return iRefCount;
}
/***
*memmove - Copy source buffer to destination buffer
*
*Purpose:
* memmove() copies a source memory buffer to a destination memory buffer.
* This routine recognize overlapping buffers to avoid propagation.
* For cases where propogation is not a problem, memcpy() can be used.
*
*Entry:
* void *dst = pointer to destination buffer
* const void *src = pointer to source buffer
* size_t count = number of bytes to copy
*
*Exit:
* Returns a pointer to the destination buffer
*
*Exceptions:
*******************************************************************************/
#if (_MSC_VER > 1900) /// Visual Studio 2017+
#pragma function (memmove)
#endif
void * __cdecl memmove (
void * dst,
const void * src,
size_t count
)
{
void * ret = dst;
if (dst <= src || (char *)dst >= ((char *)src + count)) {
/*
* Non-Overlapping Buffers
* copy from lower addresses to higher addresses
*/
while (count--) {
*(char *)dst = *(char *)src;
dst = (char *)dst + 1;
src = (char *)src + 1;
}
}
else {
/*
* Overlapping Buffers
* copy from higher addresses to lower addresses
*/
dst = (char *)dst + count - 1;
src = (char *)src + count - 1;
while (count--) {
*(char *)dst = *(char *)src;
dst = (char *)dst - 1;
src = (char *)src - 1;
}
}
return(ret);
}
//++ ExecutePendingFileRenameOperationsImpl
DWORD ExecutePendingFileRenameOperationsImpl(
__in_opt LPCTSTR pszSrcFileSubstr, /// Case insensitive. Only SrcFile-s that contain this substring will be processed. Can be empty in which case all pended file operations are executed.
__out_opt LPDWORD pdwFileOpError,
__in_opt LPCTSTR pszLogFile /// If not NULL, the routine will log all file rename operations
)
{
#define REGKEY_PENDING_FILE_OPS _T("SYSTEM\\CurrentControlSet\\Control\\Session Manager")
#define REGVAL_PENDING_FILE_OPS _T("PendingFileRenameOperations")
DWORD err = ERROR_SUCCESS, err2, err3;
HKEY hKey;
BYTE iMajorVersion = LOBYTE(LOWORD(GetVersion()));
BYTE iMinorVersion = HIBYTE(LOWORD(GetVersion()));
DWORD dwKeyFlags = 0;
BOOLEAN bDisabledFSRedirection = FALSE;
HANDLE hLogFile = INVALID_HANDLE_VALUE;
if ( iMajorVersion > 5 || ( iMajorVersion == 5 && iMinorVersion >= 1 )) /// XP or newer
dwKeyFlags |= KEY_WOW64_64KEY;
if ( pdwFileOpError )
*pdwFileOpError = ERROR_SUCCESS;
// Create the log file
hLogFile = LogCreateFile( pszLogFile, FALSE );
LogWriteFile( hLogFile, _T("ExecutePendingFileRenameOperations( \"%s\" ) {\r\n"), pszSrcFileSubstr ? pszSrcFileSubstr : _T(""));
// Read the REG_MULTI_SZ value
err = RegOpenKeyEx( HKEY_LOCAL_MACHINE, REGKEY_PENDING_FILE_OPS, 0, KEY_READ | KEY_WRITE | dwKeyFlags, &hKey );
LogWriteFile( hLogFile, _T("\tRegOpenKeyEx( \"HKLM\\%s\" ) == 0x%x\r\n"), REGKEY_PENDING_FILE_OPS, err );
if ( err == ERROR_SUCCESS ) {
DWORD dwType, dwSize = 0;
err = RegQueryValueEx( hKey, REGVAL_PENDING_FILE_OPS, NULL, &dwType, NULL, &dwSize );
LogWriteFile( hLogFile, _T("\tRegQueryValueEx( \"REGVAL_PENDING_FILE_OPS\", 0 ) == 0x%x, Size == %u\r\n"), err, dwSize );
if ( err == ERROR_SUCCESS && dwType == REG_MULTI_SZ && dwSize > 0 ) {
LPTSTR pszValue = (LPTSTR)GlobalAlloc( GMEM_FIXED, dwSize );
if ( pszValue ) {
err = RegQueryValueEx( hKey, REGVAL_PENDING_FILE_OPS, NULL, &dwType, (LPBYTE)pszValue, &dwSize );
LogWriteFile( hLogFile, _T("\tRegQueryValueEx( \"REGVAL_PENDING_FILE_OPS\", %u ) == 0x%x\r\n"), dwSize, err );
if ( err == ERROR_SUCCESS && dwType == REG_MULTI_SZ && dwSize > 0 ) {
// PendingFileRenameOperations contains pairs of strings (SrcFile, DstFile)
// At boot time every SrcFile is renamed to DstFile.
// If DstFile is empty, SrcFile is deleted.
// (DstFile might start with "!", not sure why...)
int i;
int iLen = (int)(dwSize / sizeof(TCHAR)); /// Registry value length in TCHAR-s
int iIndexSrcFile, iIndexDstFile, iNextIndex;
BOOLEAN bValueDirty = FALSE;
for ( i = 0, iIndexSrcFile = 0, iIndexDstFile = -1; i < iLen; i++ ) {
if ( pszValue[i] == _T('\0')) {
if ( iIndexDstFile == -1 ) {
// At this point we have SrcFile
iIndexDstFile = i + 1; /// Remember where DstFile begins
} else {
// At this point we have both, SrcFile and DstFile
// We'll execute the pended operation if SrcFile matches our search criteria
LPCTSTR pszSrcFile = pszValue + iIndexSrcFile;
if ( *pszSrcFile &&
( !pszSrcFileSubstr || !*pszSrcFileSubstr || MyStrFind( pszSrcFile, pszSrcFileSubstr, FALSE ))
)
{
/// Ignore "\??\" prefix
if ( CompareString( CP_ACP, NORM_IGNORECASE, pszSrcFile, 4, _T("\\??\\"), 4 ) == CSTR_EQUAL )
pszSrcFile += 4;
/// Disable file system redirection (Vista+)
if ( !bDisabledFSRedirection && IsWow64())
bDisabledFSRedirection = EnableWow64FsRedirection( FALSE );
if ( !pszValue[iIndexDstFile] ) {
// TODO: Handle directories!
// Delete SrcFile
err3 = ERROR_SUCCESS;
if ( !DeleteFile( pszSrcFile )) {
err3 = err2 = GetLastError();
if ((err2 == ERROR_FILE_NOT_FOUND) || (err2 == ERROR_INVALID_NAME) || (err2 == ERROR_PATH_NOT_FOUND) || (err2 == ERROR_INVALID_DRIVE))
err2 = ERROR_SUCCESS; /// Forget errors for files that don't exist
if ( pdwFileOpError && ( *pdwFileOpError == ERROR_SUCCESS )) /// Only the first encountered error is remembered
*pdwFileOpError = err2;
}
LogWriteFile( hLogFile, _T("\tDelete( \"%s\" ) == 0x%x\r\n"), pszSrcFile, err3 );
///DebugString( _T("Delete( \"%s\" ) == 0x%x\n"), pszSrcFile, err3 );
} else {
// TODO: Handle directories!
/// Ignore "!" and "\??\" prefixes
LPCTSTR pszDstFile = pszValue + iIndexDstFile;
if ( *pszDstFile == _T('!'))
pszDstFile++;
if ( CompareString( CP_ACP, NORM_IGNORECASE, pszDstFile, 4, _T("\\??\\"), 4 ) == CSTR_EQUAL )
pszDstFile += 4;
// Rename SrcFile -> DstFile
err3 = ERROR_SUCCESS;
if ( !MoveFileEx( pszSrcFile, pszDstFile, MOVEFILE_REPLACE_EXISTING | MOVEFILE_COPY_ALLOWED )) {
err3 = err2 = GetLastError();
if ((err2 == ERROR_FILE_NOT_FOUND) || (err2 == ERROR_INVALID_NAME) || (err2 == ERROR_PATH_NOT_FOUND) || (err2 == ERROR_INVALID_DRIVE))
err2 = ERROR_SUCCESS; /// Forget errors for files that don't exist
if ( pdwFileOpError && ( *pdwFileOpError == ERROR_SUCCESS )) /// Only the first encountered error is remembered
*pdwFileOpError = err2;
}
LogWriteFile( hLogFile, _T("\tRename( \"%s\", \"%s\" ) == 0x%x\r\n"), pszSrcFile, pszDstFile, err3 );
///DebugString( _T("Rename( \"%s\", \"%s\" ) == 0x%x\n"), pszSrcFile, pszDstFile, err3 );
}
// Remove the current pended operation from memory
iNextIndex = i + 1;
MoveMemory( pszValue + iIndexSrcFile, pszValue + iNextIndex, (iLen - iNextIndex) * sizeof(TCHAR));
iLen -= (iNextIndex - iIndexSrcFile);
dwSize -= (iNextIndex - iIndexSrcFile) * sizeof(TCHAR);
bValueDirty = TRUE;
// Next string index
i = iIndexSrcFile - 1;
iIndexDstFile = -1;
} else {
if ( *pszSrcFile )
LogWriteFile( hLogFile, _T("\tIgnore( \"%s\" )\r\n"), pszSrcFile );
iIndexSrcFile = i + 1;
iIndexDstFile = -1;
}
}
}
}
// Write the new PendingFileRenameOperations value.
// Pended operations that we've executed were removed from the list.
if ( bValueDirty ) {
if ( dwSize <= 2 ) {
err = RegDeleteValue( hKey, REGVAL_PENDING_FILE_OPS );
} else {
err = RegSetValueEx( hKey, REGVAL_PENDING_FILE_OPS, 0, REG_MULTI_SZ, (LPBYTE)pszValue, dwSize );
}
}
}
GlobalFree( pszValue );
} else {
err = ERROR_OUTOFMEMORY;
}
}
RegCloseKey( hKey );
}
/// Re-enable file system redirection (Vista+)
if ( bDisabledFSRedirection )
EnableWow64FsRedirection( TRUE );
/// Close the log
LogWriteFile( hLogFile, _T("}\r\n"));
LogCloseHandle( hLogFile );
return err;
}
//++ [exported] ExecutePendingFileRenameOperations
// ----------------------------------------------------------------------
//+ Example:
// NSutils::ExecutePendingFileRenameOperations "SrcFileSubstr" "X:\path\mylog.log"
// Pop $0 ; Win32 error code
// Pop $1 ; File operations Win32 error code
// ${If} $0 = 0
// ;Success
// ${Else}
// ;Error
// ${EndIf}
void __declspec(dllexport) ExecutePendingFileRenameOperations(
HWND parent,
int string_size,
TCHAR *variables,
stack_t **stacktop,
extra_parameters *extra
)
{
LPTSTR pszBuf = NULL;
// Cache global structures
EXDLL_INIT();
EXDLL_VALIDATE();
// Retrieve NSIS parameters
/// Allocate memory large enough to store any NSIS string
pszBuf = (TCHAR*)GlobalAlloc( GPTR, sizeof(TCHAR) * string_size );
if ( pszBuf ) {
DWORD err, fileop_err;
TCHAR szSubstring[255];
TCHAR szLogFile[MAX_PATH];
/// Param1: FileSubstring
szSubstring[0] = 0;
if ( popstring( pszBuf ) == 0 )
lstrcpy( szSubstring, pszBuf );
/// Param2: LogFile
szLogFile[0] = 0;
if ( popstring( pszBuf ) == 0 )
lstrcpy( szLogFile, pszBuf );
// Execute
err = ExecutePendingFileRenameOperationsImpl( szSubstring, &fileop_err, szLogFile );
wsprintf( pszBuf, _T("%lu"), fileop_err );
pushstring( pszBuf );
wsprintf( pszBuf, _T("%lu"), err );
pushstring( pszBuf );
/// Free memory
GlobalFree( pszBuf );
}
}
//++ FindPendingFileRenameOperationsImpl
DWORD FindPendingFileRenameOperationsImpl(
__in LPCTSTR pszFileSubstr, /// Case insensitive
__out LPTSTR pszFirstFile,
__in ULONG iFirstFileLen
)
{
#define REGKEY_PENDING_FILE_OPS _T("SYSTEM\\CurrentControlSet\\Control\\Session Manager")
#define REGVAL_PENDING_FILE_OPS _T("PendingFileRenameOperations")
DWORD err = ERROR_SUCCESS;
HKEY hKey;
BYTE iMajorVersion = LOBYTE(LOWORD(GetVersion()));
BYTE iMinorVersion = HIBYTE(LOWORD(GetVersion()));
DWORD dwKeyFlags = 0;
if ( !pszFileSubstr || !*pszFileSubstr || !pszFirstFile || !iFirstFileLen )
return ERROR_INVALID_PARAMETER;
if ( iMajorVersion > 5 || ( iMajorVersion == 5 && iMinorVersion >= 1 )) /// XP or newer
dwKeyFlags |= KEY_WOW64_64KEY;
// Read the REG_MULTI_SZ value
err = RegOpenKeyEx( HKEY_LOCAL_MACHINE, REGKEY_PENDING_FILE_OPS, 0, KEY_READ | dwKeyFlags, &hKey );
if ( err == ERROR_SUCCESS ) {
DWORD dwType, dwSize = 0;
err = RegQueryValueEx( hKey, REGVAL_PENDING_FILE_OPS, NULL, &dwType, NULL, &dwSize );
if ( err == ERROR_SUCCESS && dwType == REG_MULTI_SZ && dwSize > 0 ) {
LPTSTR pszValue = (LPTSTR)GlobalAlloc( GMEM_FIXED, dwSize );
if ( pszValue ) {
err = RegQueryValueEx( hKey, REGVAL_PENDING_FILE_OPS, NULL, &dwType, (LPBYTE)pszValue, &dwSize );
if ( err == ERROR_SUCCESS && dwType == REG_MULTI_SZ && dwSize > 0 ) {
// PendingFileRenameOperations contains pairs of strings (SrcFile, DstFile)
// At boot time every SrcFile is renamed to DstFile.
// If DstFile is empty, SrcFile is deleted.
// (DstFile might start with "!", not sure why...)
int i;
int iLen = (int)(dwSize / sizeof(TCHAR)); /// Registry value length in TCHAR-s
int iIndexSrcFile, iIndexDstFile;
err = ERROR_FILE_NOT_FOUND; /// Default return value
for ( i = 0, iIndexSrcFile = 0, iIndexDstFile = -1; i < iLen; i++ ) {
if ( pszValue[i] == _T('\0')) {
if ( iIndexDstFile == -1 ) {
// At this point we have SrcFile
iIndexDstFile = i + 1; /// Remember where DstFile begins
} else {
// At this point we have both, SrcFile and DstFile
// We'll test if SrcFile contains our substring
LPCTSTR pszSrcFile = pszValue + iIndexSrcFile;
iIndexSrcFile = i + 1;
/*/// Ignore "\??\" prefix
if ( CompareString( CP_ACP, NORM_IGNORECASE, pszSrcFile, 4, _T("\\??\\"), 4 ) == CSTR_EQUAL )
pszSrcFile += 4;*/
if ( !pszValue[iIndexDstFile] ) {
if ( MyStrFind( pszSrcFile, pszFileSubstr, FALSE )) {
lstrcpyn( pszFirstFile, pszSrcFile, iFirstFileLen );
err = ERROR_SUCCESS;
break;
}
///DebugString( _T("Delete( \"%s\" )\n"), pszSrcFile );
} else {
/// Ignore "!" and "\??\" prefixes
LPCTSTR pszDstFile = pszValue + iIndexDstFile;
if ( *pszDstFile == _T('!'))
pszDstFile++;
/*if ( CompareString( CP_ACP, NORM_IGNORECASE, pszDstFile, 4, _T("\\??\\"), 4 ) == CSTR_EQUAL )
pszDstFile += 4;*/
if ( MyStrFind( pszSrcFile, pszFileSubstr, FALSE )) {
lstrcpyn( pszFirstFile, pszSrcFile, iFirstFileLen );
err = ERROR_SUCCESS;
break;
}
if ( MyStrFind( pszDstFile, pszFileSubstr, FALSE )) {
lstrcpyn( pszFirstFile, pszDstFile, iFirstFileLen );
err = ERROR_SUCCESS;
break;
}
///DebugString( _T("Rename( \"%s\", \"%s\" )\n"), pszSrcFile, pszDstFile );
}
// Index
iIndexDstFile = -1;
}
}
}
}
GlobalFree( pszValue );
} else {
err = ERROR_OUTOFMEMORY;
}
}
RegCloseKey( hKey );
}
return err;
}
//++ [exported] FindPendingFileRenameOperations
// ----------------------------------------------------------------------
//+ Example:
// NSutils::FindPendingFileRenameOperations "FileSubstr"
// Pop $0 ; First file path containing FileSubstr, or, an empty string if nothing is found
// ${If} $0 != ""
// ;Found
// ${Else}
// ;Not found
// ${EndIf}
void __declspec(dllexport) FindPendingFileRenameOperations(
HWND parent,
int string_size,
TCHAR *variables,
stack_t **stacktop,
extra_parameters *extra
)
{
LPTSTR pszBuf = NULL;
// Cache global structures
EXDLL_INIT();
EXDLL_VALIDATE();
// Retrieve NSIS parameters
/// Allocate memory large enough to store any NSIS string
pszBuf = (TCHAR*)GlobalAlloc( GPTR, sizeof(TCHAR) * string_size );
if ( pszBuf ) {
DWORD err;
TCHAR szSubstring[255];
/// Param1: SrcFileSubstr
szSubstring[0] = 0;
if ( popstring( pszBuf ) == 0 )
lstrcpy( szSubstring, pszBuf );
// Execute
err = FindPendingFileRenameOperationsImpl( szSubstring, pszBuf, string_size );
if ( err == ERROR_SUCCESS ) {
pushstring( pszBuf );
} else {
pushstring( _T(""));
}
/// Free memory
GlobalFree( pszBuf );
}
}
//++ ProgressBarWndProc
LRESULT CALLBACK ProgressBarWndProc(
__in HWND hWnd,
__in UINT iMsg,
__in WPARAM wParam,
__in LPARAM lParam
)
{
WNDPROC fnOriginalWndProc = (WNDPROC)GetProp( hWnd, PROP_WNDPROC_OLD );
switch ( iMsg )
{
case PBM_SETPOS:
{
// Prevent stepping back?
if ( GetProp( hWnd, PROP_PROGRESSBAR_NOSTEPBACK ) == (HANDLE)TRUE )
{
int iNewPos = (int)wParam;
int iCurPos = (int)SendMessage( hWnd, PBM_GETPOS, 0, 0 );
// We don't allow the progress bar to go backward
// ...except when set to zero
if (( iNewPos <= iCurPos ) && ( iNewPos > 0 )) {
return iCurPos;
}
}
// Redirect the message to the second progress bar, if set
if ( TRUE ) {
HWND hProgressBar2 = (HWND)GetProp( hWnd, PROP_PROGRESSBAR_REDIRECTWND );
if ( hProgressBar2 )
SendMessage( hProgressBar2, iMsg, wParam, lParam );
}
break;
}
case PBM_SETRANGE:
case PBM_DELTAPOS:
case PBM_SETSTEP:
case PBM_STEPIT:
case PBM_SETRANGE32:
case PBM_SETBARCOLOR:
case PBM_SETBKCOLOR:
case PBM_SETMARQUEE:
case PBM_SETSTATE:
{
// Redirect the message to the second progress bar, if set
HWND hProgressBar2 = (HWND)GetProp( hWnd, PROP_PROGRESSBAR_REDIRECTWND );
if ( hProgressBar2 )
SendMessage( hProgressBar2, iMsg, wParam, lParam );
break;
}
case WM_DESTROY:
{
// Unsubclass this window. Should have been done by the caller...
while ( MyUnsubclassWindow( hWnd ) > 0 );
RemoveProp( hWnd, PROP_PROGRESSBAR_NOSTEPBACK );
RemoveProp( hWnd, PROP_PROGRESSBAR_REDIRECTWND );
break;
}
}
// Call the original WndProc
if ( fnOriginalWndProc ) {
return CallWindowProc( fnOriginalWndProc, hWnd, iMsg, wParam, lParam );
} else {
return DefWindowProc( hWnd, iMsg, wParam, lParam );
}
}
//++ [exported] DisableProgressStepBack
// ----------------------------------------------------------------------
//+ Input:
// [Stack] Progress bar window handle
//+ Output:
// None
//+ Example:
// NSutils::DisableProgressStepBack /NOUNLOAD $mui.InstFilesPage.ProgressBar
void __declspec(dllexport) DisableProgressStepBack(
HWND parent,
int string_size,
TCHAR *variables,
stack_t **stacktop,
extra_parameters *extra
)
{
HWND hProgressBar;
// Cache global structures
EXDLL_INIT();
EXDLL_VALIDATE();
// By registering PluginCallback the plugin remains locked in memory
// Otherwise the framework would unload it when this call returns... Unless the caller specifies /NOUNLOAD...
extra->RegisterPluginCallback( g_hModule, PluginCallback );
// Retrieve NSIS parameters
/// Param1: Progress bar handle
hProgressBar = (HWND)popintptr();
if ( hProgressBar && IsWindow( hProgressBar )) {
if ( GetProp( hProgressBar, PROP_PROGRESSBAR_NOSTEPBACK ) == NULL ) { /// Already set?
if ( MySubclassWindow( hProgressBar, ProgressBarWndProc ) > 0 ) {
SetProp( hProgressBar, PROP_PROGRESSBAR_NOSTEPBACK, (HANDLE)TRUE );
}
}
}
}
//++ [exported] RestoreProgressStepBack
// ----------------------------------------------------------------------
//+ Input:
// [Stack] Progress bar window handle
//+ Output:
// None
//+ Example:
// NSutils::RestoreProgressStepBack /NOUNLOAD $mui.InstFilesPage.ProgressBar
void __declspec(dllexport) RestoreProgressStepBack(
HWND parent,
int string_size,
TCHAR *variables,
stack_t **stacktop,
extra_parameters *extra
)
{
HWND hProgressBar;
// Cache global structures
EXDLL_INIT();
EXDLL_VALIDATE();
// Retrieve NSIS parameters
/// Param1: Progress bar handle
hProgressBar = (HWND)popintptr();
if ( hProgressBar && IsWindow( hProgressBar )) {
if ( GetProp( hProgressBar, PROP_PROGRESSBAR_NOSTEPBACK ) != NULL ) { /// Ever set?
RemoveProp( hProgressBar, PROP_PROGRESSBAR_NOSTEPBACK );
MyUnsubclassWindow( hProgressBar );
}
}
}
//++ [exported] RedirectProgressBar
// ----------------------------------------------------------------------
//+ Input:
// [Stack] ProgressBarWnd SecondProgressBarWnd
//+ Output:
// None
//+ Example:
// NSutils::RedirectProgressBar /NOUNLOAD $mui.InstFilesPage.ProgressBar $mui.MyProgressBar
void __declspec(dllexport) RedirectProgressBar(
HWND parent,
int string_size,
TCHAR *variables,
stack_t **stacktop,
extra_parameters *extra
)
{
HWND hProgressBar, hProgressBar2;
// Cache global structures
EXDLL_INIT();
EXDLL_VALIDATE();
// By registering PluginCallback the plugin remains locked in memory
// Otherwise the framework would unload it when this call returns... Unless the caller specifies /NOUNLOAD...
extra->RegisterPluginCallback( g_hModule, PluginCallback );
// Retrieve NSIS parameters
/// Param1: Progress bar handle
hProgressBar = (HWND)popintptr();
/// Param2: Second progress bar handle. If NULL, the redirection is canceled
hProgressBar2 = (HWND)popintptr();
if ( hProgressBar && IsWindow( hProgressBar )) {
if ( hProgressBar2 ) {
// Activate progress bar message redirection
if ( GetProp( hProgressBar, PROP_PROGRESSBAR_REDIRECTWND ) == NULL ) {
/// New redirection
if ( MySubclassWindow( hProgressBar, ProgressBarWndProc ) > 1 ) {
SetProp( hProgressBar, PROP_PROGRESSBAR_REDIRECTWND, hProgressBar2 );
}
} else {
/// Update existing redirection
SetProp( hProgressBar, PROP_PROGRESSBAR_REDIRECTWND, hProgressBar2 );
}
// Clone the characteristics of the first progress bar to the second one
SetWindowLongPtr( hProgressBar2, GWL_STYLE, GetWindowLongPtr( hProgressBar, GWL_STYLE ));
SetWindowLongPtr( hProgressBar2, GWL_EXSTYLE, GetWindowLongPtr( hProgressBar, GWL_EXSTYLE ));
SendMessage(
hProgressBar2,
PBM_SETRANGE32,
SendMessage( hProgressBar, PBM_GETRANGE, TRUE, 0 ), /// Low limit
SendMessage( hProgressBar, PBM_GETRANGE, FALSE, 0 ) /// High limit
);
} else {
// Cancel progress bar message redirection
if ( GetProp( hProgressBar, PROP_PROGRESSBAR_REDIRECTWND ) != NULL ) {
RemoveProp( hProgressBar, PROP_PROGRESSBAR_REDIRECTWND );
MyUnsubclassWindow( hProgressBar );
}
}
}
}
//++ MainWndProc
LRESULT CALLBACK MainWndProc(
__in HWND hWnd,
__in UINT iMsg,
__in WPARAM wParam,
__in LPARAM lParam
)
{
WNDPROC fnOriginalWndProc = (WNDPROC)GetProp( hWnd, PROP_WNDPROC_OLD );
switch ( iMsg )
{
case WM_COMMAND:
{
if ( HIWORD( wParam ) == BN_CLICKED ) {
int iNsisCallback = HandleToULong( GetProp( hWnd, PROP_BNCLICKED_CALLBACK ) );
if ( iNsisCallback != 0 ) {
pushintptr( LOWORD( wParam )); /// Button control ID
pushintptr( lParam ); /// Button HWND
g_ep->ExecuteCodeSegment( iNsisCallback - 1, 0 );
}
}
}
break;
case WM_DESTROY:
{
// Unsubclass this window. Should have been done by the caller...
while ( MyUnsubclassWindow( hWnd ) > 0 );
RemoveProp( hWnd, PROP_BNCLICKED_CALLBACK );
break;
}
}
// Call the original WndProc
if ( fnOriginalWndProc ) {
return CallWindowProc( fnOriginalWndProc, hWnd, iMsg, wParam, lParam );
} else {
return DefWindowProc( hWnd, iMsg, wParam, lParam );
}
}
//++ TimerWndProc
VOID CALLBACK TimerWndProc( _In_ HWND hWnd, _In_ UINT iMsg, _In_ UINT_PTR iEventID, _In_ DWORD iTime )
{
if (iMsg == WM_TIMER) {
// Check timer cache
int i;
for (i = 0; i < ARRAYSIZE( g_Timers ); i++) {
if (g_Timers[i].TimerID == iEventID) {
// NSIS callback
DebugString( _T( "[NSutils::%hs] OnTimer( NSIS:%d, ID:%u, Idx:%d/%d )\n" ), __FUNCTION__, g_Timers[i].NsisCallback, (ULONG)g_Timers[i].TimerID, i, ARRAYSIZE(g_Timers) );
g_ep->ExecuteCodeSegment( g_Timers[i].NsisCallback - 1, 0 );
break;
}
}
if (i == ARRAYSIZE(g_Timers))
DebugString( _T( "[NSutils::%hs] WM_TIMER( ID:%u, Time:%ums ) not found in cache\n" ), __FUNCTION__, (ULONG)iEventID, iTime );
}
}
//++ [exported] StartTimer
// ----------------------------------------------------------------------
//+ Input:
// [Stack] NsisCallbackFunction (regular NSIS function, no input, no output)
// [Stack] TimerInterval (in milliseconds, 1000ms = 1s)
//+ Output:
// None
//+ Example:
// GetFunctionAddress $0 OnMyTimer
// NSutils::StartTimer /NOUNLOAD $0 1000
void __declspec(dllexport) StartTimer(
HWND parent,
int string_size,
TCHAR *variables,
stack_t **stacktop,
extra_parameters *extra
)
{
int iCallback;
int iPeriod;
// Cache global structures