windows-nt/Source/XPSP1/NT/base/fs/utils/regedit/regfind.c

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2020-09-26 03:20:57 -05:00
/*******************************************************************************
*
* (C) COPYRIGHT MICROSOFT CORP., 1993-1994
*
* TITLE: REGFIND.C
*
* VERSION: 4.0
*
* AUTHOR: Tracy Sharpe
*
* DATE: 14 Jul 1994
*
* Find routines for the Registry Editor.
*
*******************************************************************************/
#include "pch.h"
#include "regedit.h"
#include "regkey.h"
#include "regresid.h"
#include "reghelp.h"
#include "regvalue.h"
#define SIZE_FINDSPEC (max(MAXKEYNAME, MAXVALUENAME_LENGTH))
TCHAR s_FindSpecification[SIZE_FINDSPEC] = { 0 };
#define FIND_EXACT 0x00000001
#define FIND_KEYS 0x00000002
#define FIND_VALUES 0x00000004
#define FIND_DATA 0x00000008
// Initialized value is the default if we don't find last known state in the
// registry.
DWORD g_FindFlags = FIND_KEYS | FIND_VALUES | FIND_DATA;
// Global needed to monitor the find abort dialog status.
BOOL s_fContinueFind;
//
// Reference data for the RegFind dialog.
//
typedef struct _REGFINDDATA {
UINT LookForCount;
} REGFINDDATA;
REGFINDDATA s_RegFindData;
//
// Association between the items of the RegFind dialog and the find flags.
//
typedef struct _DLGITEMFINDFLAGASSOC {
int DlgItem;
DWORD Flag;
} DLGITEMFINDFLAGASSOC;
const DLGITEMFINDFLAGASSOC s_DlgItemFindFlagAssoc[] = {
IDC_WHOLEWORDONLY, FIND_EXACT,
IDC_FORKEYS, FIND_KEYS,
IDC_FORVALUES, FIND_VALUES,
IDC_FORDATA, FIND_DATA
};
const DWORD s_RegFindHelpIDs[] = {
IDC_FINDWHAT, IDH_FIND_SEARCHTEXT,
IDC_GROUPBOX, IDH_REGEDIT_LOOK,
IDC_FORKEYS, IDH_REGEDIT_LOOK,
IDC_FORVALUES, IDH_REGEDIT_LOOK,
IDC_FORDATA, IDH_REGEDIT_LOOK,
IDC_WHOLEWORDONLY, IDH_FIND_WHOLE,
IDOK, IDH_FIND_NEXT_BUTTON,
0, 0
};
BOOL
PASCAL
FindCompare(
LPTSTR lpString
);
INT_PTR
PASCAL
RegFindDlgProc(
HWND hWnd,
UINT Message,
WPARAM wParam,
LPARAM lParam
);
BOOL
PASCAL
RegFind_OnInitDialog(
HWND hWnd,
HWND hFocusWnd,
LPARAM lParam
);
VOID
PASCAL
RegFind_OnCommand(
HWND hWnd,
int DlgItem,
HWND hControlWnd,
UINT NotificationCode
);
BOOL
PASCAL
RegFindAbortProc(
HWND hRegFindAbortWnd
);
INT_PTR
CALLBACK
RegFindAbortDlgProc(
HWND hWnd,
UINT Message,
WPARAM wParam,
LPARAM lParam
);
/*******************************************************************************
*
* RegEdit_OnCommandFindNext
*
* DESCRIPTION:
*
* PARAMETERS:
*
*******************************************************************************/
VOID
PASCAL
RegEdit_OnCommandFindNext(
HWND hWnd,
BOOL fForceDialog
)
{
UINT uErrorStringID;
BOOL fError = FALSE;
BOOL fSearchedToEnd;
HWND hFocusWnd;
LV_ITEM LVItem;
TCHAR ValueName[MAXVALUENAME_LENGTH];
DWORD Type;
DWORD cbValueData;
TV_ITEM TVItem;
TCHAR KeyName[MAXKEYNAME];
HWND hRegFindAbortWnd;
HTREEITEM hTempTreeItem;
UINT ExpandCounter;
HKEY hRootKey;
HKEY hKey;
DWORD EnumIndex;
DWORD cbValueName;
BOOL fFoundMatch;
TCHAR BestValueName[MAXVALUENAME_LENGTH];
LV_FINDINFO LVFindInfo;
fSearchedToEnd = FALSE;
hFocusWnd = NULL;
hRegFindAbortWnd = NULL;
//
// Check if we're to show the find dialog. This is either due to the user
// explicitly choosing the "Find" menu item or causing a "Find Next" with
// the search specification being uninitialized.
//
if (fForceDialog || s_FindSpecification[0] == 0) {
if (DialogBox(g_hInstance, MAKEINTRESOURCE(IDD_REGFIND), hWnd,
RegFindDlgProc) != IDOK)
return;
}
RegEdit_SetWaitCursor(TRUE);
//
// Check if we're trying to finding either value names or data. If so,
// then the next match might be part of the current ValueList.
//
if (g_FindFlags & (FIND_VALUES | FIND_DATA)) {
LVItem.iItem = ListView_GetNextItem(g_RegEditData.hValueListWnd, -1,
LVNI_FOCUSED);
LVItem.iSubItem = 0;
LVItem.mask = LVIF_TEXT;
LVItem.pszText = ValueName;
LVItem.cchTextMax = sizeof(ValueName)/sizeof(TCHAR);
//
// Walk over all of the rest of the value names attempting to find a
// match.
//
while ((LVItem.iItem = ListView_GetNextItem(g_RegEditData.hValueListWnd,
LVItem.iItem, LVNI_ALL)) != -1) {
ListView_GetItem(g_RegEditData.hValueListWnd, &LVItem);
//
// Check if this value name meets our search specification. We'll
// assume that this value name still exists.
//
if ((g_FindFlags & FIND_VALUES) && FindCompare(ValueName))
goto SelectListItem;
//
// Check if this value data meets our search specification. We'll
// have to go back to the registry to determine this.
//
if (g_FindFlags & FIND_DATA)
{
if ((RegEdit_QueryValueEx(g_RegEditData.hCurrentSelectionKey, ValueName,
NULL, &Type, NULL, &cbValueData) == ERROR_SUCCESS) &&
IsRegStringType(Type))
{
// Allocate storage space
PBYTE pbDataValue = (PBYTE)LocalAlloc(LPTR, cbValueData+ExtraAllocLen(Type));
if (pbDataValue)
{
BOOL fSuccess = FALSE;
if (RegEdit_QueryValueEx(g_RegEditData.hCurrentSelectionKey, ValueName,
NULL, &Type, pbDataValue, &cbValueData) == ERROR_SUCCESS)
{
if (Type == REG_MULTI_SZ)
{
EDITVALUEPARAM evp;
evp.pValueData = pbDataValue;
evp.cbValueData = cbValueData;
if (ValueList_MultiStringToString(&evp))
{
pbDataValue = evp.pValueData;
}
}
fSuccess = FindCompare((PTSTR)pbDataValue);
}
LocalFree(pbDataValue);
if (fSuccess)
{
goto SelectListItem;
}
}
else
{
fError = TRUE;
uErrorStringID = IDS_NOMEMORY;
goto DismissRegFindAbortWnd;
}
}
}
}
}
//
// Searching the registry (especially with this code!) is a lengthy
// operation, so we must provide a way for the user to cancel the
// operation.
//
s_fContinueFind = TRUE;
if ((hRegFindAbortWnd = CreateDialog(g_hInstance,
MAKEINTRESOURCE(IDD_REGFINDABORT), hWnd, RegFindAbortDlgProc)) !=
NULL) {
EnableWindow(hWnd, FALSE);
//
// Major hack: The following code sequence relies heavily on the
// TreeView to maintain the state of the find process. Even though I'm
// inserting and deleting non-visible tree items, the TreeView
// currently flickers despite this.
//
// So, we set this internal flag and turn off the TreeView's redraw
// flag. Whenever we get a WM_PAINT message for our main window, we
// temporarily "let" it redraw itself then and only then. That way,
// the user can move the modeless abort dialog or switch away and back
// and still have the TreeView look normal.
//
// Yes, it's difficult at this time to fix the TreeView's paint logic.
//
g_RegEditData.fProcessingFind = TRUE;
SetWindowRedraw(g_RegEditData.hKeyTreeWnd, FALSE);
}
//
// Either the user wasn't trying to find value names or data or else no
// matches were found. This means that we must move on to the next branch
// of the registry.
//
// We first walk into the children of the current branch, then the
// siblings, and finally pop back through the parent.
//
// We use the information already in the KeyTree pane as much as possible.
//
ExpandCounter = 0;
fFoundMatch = FALSE;
BestValueName[0] = '\0';
TVItem.mask = TVIF_TEXT | TVIF_STATE | TVIF_CHILDREN;
TVItem.pszText = KeyName;
TVItem.cchTextMax = sizeof(KeyName)/sizeof(TCHAR);
TVItem.hItem = TreeView_GetSelection(g_RegEditData.hKeyTreeWnd);
TreeView_GetItem(g_RegEditData.hKeyTreeWnd, &TVItem);
while (TRUE) {
//
// Check if we should cancel the find operation. If so, restore our
// initial state and exit.
//
if (!RegFindAbortProc(hRegFindAbortWnd)) {
if (ExpandCounter) {
hTempTreeItem = TVItem.hItem;
do {
hTempTreeItem =
TreeView_GetParent(g_RegEditData.hKeyTreeWnd,
hTempTreeItem);
} while (--ExpandCounter);
TreeView_Expand(g_RegEditData.hKeyTreeWnd, hTempTreeItem,
TVE_COLLAPSE | TVE_COLLAPSERESET);
}
goto DismissRegFindAbortWnd;
}
//
// Does this branch have any children? This would have been determined
// when the tree item was built by the routine KeyTree_ExpandBranch.
//
if (TVItem.cChildren) {
//
// The branch may have children, but it may not have been expanded
// yet.
//
if ((hTempTreeItem = TreeView_GetChild(g_RegEditData.hKeyTreeWnd,
TVItem.hItem)) == NULL) {
if (!KeyTree_ExpandBranch(g_RegEditData.hKeyTreeWnd,
TVItem.hItem))
goto SkipToSibling;
if ((hTempTreeItem = TreeView_GetChild(g_RegEditData.hKeyTreeWnd,
TVItem.hItem)) == NULL)
goto SkipToSibling;
ExpandCounter++;
}
TVItem.hItem = hTempTreeItem;
}
//
// The branch doesn't have any children, so we'll move on to the next
// sibling of the current branch. If none exists, then try finding
// the next sibling of the parent branch, and so on.
//
else {
SkipToSibling:
while (TRUE) {
if ((hTempTreeItem =
TreeView_GetNextSibling(g_RegEditData.hKeyTreeWnd,
TVItem.hItem)) != NULL) {
TVItem.hItem = hTempTreeItem;
break;
}
//
// If no more parents exist, then we've finished searching the
// tree. We're outta here!
//
if ((TVItem.hItem =
TreeView_GetParent(g_RegEditData.hKeyTreeWnd,
TVItem.hItem)) == NULL) {
fSearchedToEnd = TRUE;
goto DismissRegFindAbortWnd;
}
if (ExpandCounter) {
ExpandCounter--;
TreeView_Expand(g_RegEditData.hKeyTreeWnd, TVItem.hItem,
TVE_COLLAPSE | TVE_COLLAPSERESET);
}
}
}
//
// If we made it this far, then we're at the next branch of the
// registry to evaluate.
//
TreeView_GetItem(g_RegEditData.hKeyTreeWnd, &TVItem);
//
// Check if we're trying to find keys.
//
if (g_FindFlags & FIND_KEYS) {
if (FindCompare(KeyName))
goto SelectTreeItem;
}
//
// Check if we're trying to find value names or data.
//
if (g_FindFlags & (FIND_VALUES | FIND_DATA)) {
//
// Try to open the registry at the new current branch.
//
hRootKey = KeyTree_BuildKeyPath(g_RegEditData.hKeyTreeWnd,
TVItem.hItem, KeyName, BKP_TOSUBKEY);
if(hRootKey && RegOpenKeyEx(hRootKey,KeyName,0,KEY_QUERY_VALUE,&hKey) ==
ERROR_SUCCESS) {
//
// Here's the simple case-- we're trying to find an exact match
// for a value name. We can just use the registry API to do
// this for us!
//
if ((g_FindFlags & (FIND_VALUES | FIND_DATA | FIND_EXACT)) ==
(FIND_VALUES | FIND_EXACT)) {
if (RegEdit_QueryValueEx(hKey, s_FindSpecification, NULL, NULL,
NULL, NULL) == ERROR_SUCCESS) {
lstrcpy(BestValueName, s_FindSpecification);
fFoundMatch = TRUE;
}
}
//
// Bummer... we need to walk through all of the registry
// value/data pairs for this key to try to find a match. Even
// worse, we have to look at _all_ of the entries, not just the
// first hit... we must display the first alphabetically
// matching entry!
//
else {
EnumIndex = 0;
while (TRUE)
{
cbValueName = sizeof(ValueName)/sizeof(TCHAR);
if (RegEnumValue(hKey, EnumIndex++, ValueName,
&cbValueName, NULL, &Type, NULL,
&cbValueData) == ERROR_SUCCESS)
{
PBYTE pbValueData = (g_FindFlags & FIND_DATA) ?
(PBYTE)LocalAlloc(LPTR, cbValueData+ExtraAllocLen(Type)) : NULL;
if (pbValueData || !(g_FindFlags & FIND_DATA))
{
if (RegEdit_QueryValueEx(hKey, ValueName, NULL, &Type,
pbValueData, &cbValueData) == ERROR_SUCCESS)
{
if (pbValueData && (Type == REG_MULTI_SZ))
{
EDITVALUEPARAM evp;
evp.pValueData = pbValueData;
evp.cbValueData = cbValueData;
if (ValueList_MultiStringToString(&evp))
{
pbValueData = evp.pValueData;
}
}
if (((g_FindFlags & FIND_VALUES) &&
FindCompare(ValueName)) ||
((g_FindFlags & FIND_DATA) && IsRegStringType(Type) &&
FindCompare((PTSTR)pbValueData)))
{
//
// We've got to check if we've found a "better"
// value name to display-- one that's at the top of
// the sorted list.
//
if (fFoundMatch) {
if (lstrcmpi(BestValueName, ValueName) > 0)
lstrcpy(BestValueName, ValueName);
}
else {
lstrcpy(BestValueName, ValueName);
fFoundMatch = TRUE;
}
}
}
if (pbValueData)
{
LocalFree(pbValueData);
}
}
else
{
fError = TRUE;
uErrorStringID = IDS_NOMEMORY;
goto DismissRegFindAbortWnd;
}
}
else
{
break;
}
}
}
RegCloseKey(hKey);
if (fFoundMatch)
goto SelectTreeItem;
}
}
}
SelectTreeItem:
TreeView_EnsureVisible(g_RegEditData.hKeyTreeWnd, TVItem.hItem);
TreeView_SelectItem(g_RegEditData.hKeyTreeWnd, TVItem.hItem);
if (!fFoundMatch)
hFocusWnd = g_RegEditData.hKeyTreeWnd;
else {
//
// Right now, the TreeView_SelectItem above will cause the ValueListWnd
// to update, but only after a short time delay. We want the list
// immediately updated, so force the timer to go off now.
//
RegEdit_OnSelChangedTimer(hWnd);
if (BestValueName[0] == 0)
LVItem.iItem = 0;
else {
LVFindInfo.flags = LVFI_STRING;
LVFindInfo.psz = BestValueName;
LVItem.iItem = ListView_FindItem(g_RegEditData.hValueListWnd,
-1, &LVFindInfo);
}
SelectListItem:
ListView_SetItemState(g_RegEditData.hValueListWnd, -1, 0,
LVIS_SELECTED | LVIS_FOCUSED);
ListView_SetItemState(g_RegEditData.hValueListWnd, LVItem.iItem,
LVIS_SELECTED | LVIS_FOCUSED, LVIS_SELECTED | LVIS_FOCUSED);
ListView_EnsureVisible(g_RegEditData.hValueListWnd, LVItem.iItem,
FALSE);
hFocusWnd = g_RegEditData.hValueListWnd;
}
DismissRegFindAbortWnd:
RegEdit_SetWaitCursor(FALSE);
if (hRegFindAbortWnd != NULL) {
g_RegEditData.fProcessingFind = FALSE;
SetWindowRedraw(g_RegEditData.hKeyTreeWnd, TRUE);
EnableWindow(hWnd, TRUE);
DestroyWindow(hRegFindAbortWnd);
}
if (hFocusWnd != NULL)
SetFocus(hFocusWnd);
if (fError)
{
InternalMessageBox(g_hInstance, hWnd, MAKEINTRESOURCE(uErrorStringID),
MAKEINTRESOURCE(IDS_REGEDIT), MB_ICONERROR | MB_OK);
}
if (fSearchedToEnd)
InternalMessageBox(g_hInstance, hWnd, MAKEINTRESOURCE(IDS_SEARCHEDTOEND),
MAKEINTRESOURCE(IDS_REGEDIT), MB_ICONINFORMATION | MB_OK);
}
/*******************************************************************************
*
* FindCompare
*
* DESCRIPTION:
*
* PARAMETERS:
*
*******************************************************************************/
BOOL
PASCAL
FindCompare(
LPTSTR lpString
)
{
if (g_FindFlags & FIND_EXACT)
return lstrcmpi(lpString, s_FindSpecification) == 0;
else
return StrStrI(lpString, s_FindSpecification) != NULL;
}
/*******************************************************************************
*
* RegFindDlgProc
*
* DESCRIPTION:
*
* PARAMETERS:
*
*******************************************************************************/
INT_PTR
PASCAL
RegFindDlgProc(
HWND hWnd,
UINT Message,
WPARAM wParam,
LPARAM lParam
)
{
switch (Message) {
HANDLE_MSG(hWnd, WM_INITDIALOG, RegFind_OnInitDialog);
HANDLE_MSG(hWnd, WM_COMMAND, RegFind_OnCommand);
case WM_HELP:
WinHelp(((LPHELPINFO) lParam)-> hItemHandle, g_pHelpFileName,
HELP_WM_HELP, (ULONG_PTR) s_RegFindHelpIDs);
break;
case WM_CONTEXTMENU:
WinHelp((HWND) wParam, g_pHelpFileName, HELP_CONTEXTMENU,
(ULONG_PTR) s_RegFindHelpIDs);
break;
default:
return FALSE;
}
return TRUE;
}
/*******************************************************************************
*
* RegFind_OnInitDialog
*
* DESCRIPTION:
*
* PARAMETERS:
*
*******************************************************************************/
BOOL
PASCAL
RegFind_OnInitDialog(
HWND hWnd,
HWND hFocusWnd,
LPARAM lParam
)
{
UINT Counter;
int DlgItem;
//
// Initialize the "Find What" edit control.
//
SendDlgItemMessage(hWnd, IDC_FINDWHAT, EM_SETLIMITTEXT,
SIZE_FINDSPEC, 0);
SetDlgItemText(hWnd, IDC_FINDWHAT, s_FindSpecification);
//
// Initialize the checkboxes based on the state of the global find flags.
//
s_RegFindData.LookForCount = 0;
for (Counter = 0; Counter < sizeof(s_DlgItemFindFlagAssoc) /
sizeof(DLGITEMFINDFLAGASSOC); Counter++) {
if (g_FindFlags & s_DlgItemFindFlagAssoc[Counter].Flag) {
DlgItem = s_DlgItemFindFlagAssoc[Counter].DlgItem;
CheckDlgButton(hWnd, DlgItem, TRUE);
if (DlgItem >= IDC_FORKEYS && DlgItem <= IDC_FORDATA)
s_RegFindData.LookForCount++;
}
}
return TRUE;
UNREFERENCED_PARAMETER(hFocusWnd);
UNREFERENCED_PARAMETER(lParam);
}
/*******************************************************************************
*
* RegFind_OnCommand
*
* DESCRIPTION:
*
* PARAMETERS:
*
*******************************************************************************/
VOID
PASCAL
RegFind_OnCommand(
HWND hWnd,
int DlgItem,
HWND hControlWnd,
UINT NotificationCode
)
{
UINT Counter;
if (DlgItem >= IDC_FORKEYS && DlgItem <= IDC_FORDATA) {
if (NotificationCode == BN_CLICKED) {
IsDlgButtonChecked(hWnd, DlgItem) ? s_RegFindData.LookForCount++ :
s_RegFindData.LookForCount--;
goto EnableFindNextButton;
}
}
else {
switch (DlgItem) {
case IDC_FINDWHAT:
if (NotificationCode == EN_CHANGE) {
EnableFindNextButton:
EnableWindow(GetDlgItem(hWnd, IDOK),
s_RegFindData.LookForCount > 0 &&
SendDlgItemMessage(hWnd, IDC_FINDWHAT,
WM_GETTEXTLENGTH, 0, 0) != 0);
}
break;
case IDOK:
GetDlgItemText(hWnd, IDC_FINDWHAT, s_FindSpecification,
sizeof(s_FindSpecification)/sizeof(TCHAR));
for (Counter = 0; Counter < sizeof(s_DlgItemFindFlagAssoc) /
sizeof(DLGITEMFINDFLAGASSOC); Counter++) {
if (IsDlgButtonChecked(hWnd,
s_DlgItemFindFlagAssoc[Counter].DlgItem))
g_FindFlags |= s_DlgItemFindFlagAssoc[Counter].Flag;
else
g_FindFlags &= ~s_DlgItemFindFlagAssoc[Counter].Flag;
}
// FALL THROUGH
case IDCANCEL:
EndDialog(hWnd, DlgItem);
break;
}
}
}
/*******************************************************************************
*
* RegFindAbortProc
*
* DESCRIPTION:
*
* PARAMETERS:
* (returns), TRUE to continue the find, else FALSE to cancel.
*
*******************************************************************************/
BOOL
PASCAL
RegFindAbortProc(
HWND hRegFindAbortWnd
)
{
while (s_fContinueFind && MessagePump(hRegFindAbortWnd))
;
return s_fContinueFind;
}
/*******************************************************************************
*
* RegAbortDlgProc
*
* DESCRIPTION:
* Callback procedure for the RegAbort dialog box.
*
* PARAMETERS:
* hWnd, handle of RegAbort window.
* Message,
* wParam,
* lParam,
* (returns),
*
*******************************************************************************/
INT_PTR
CALLBACK
RegFindAbortDlgProc(
HWND hWnd,
UINT Message,
WPARAM wParam,
LPARAM lParam
)
{
switch (Message) {
case WM_INITDIALOG:
break;
case WM_CLOSE:
case WM_COMMAND:
s_fContinueFind = FALSE;
break;
default:
return FALSE;
}
return TRUE;
}