386 lines
12 KiB
C
386 lines
12 KiB
C
|
// History:
|
||
|
|
// 5-30-94 KurtE Created.
|
||
|
|
#include "shellprv.h"
|
||
|
|
#pragma hdrstop
|
||
|
|
|
||
|
|
//#define PARANOID_VALIDATE_UPDATE
|
||
|
|
|
||
|
|
// Define our global states here. Note: we will do it per process
|
||
|
|
typedef struct _RLPI // Registry List Process Info
|
||
|
|
{
|
||
|
|
HDPA hdpaRLList; // The dpa of items
|
||
|
|
BOOL fCSInitialized; // Have we initialized the CS in this process
|
||
|
|
BOOL fListValid; // Is the list up to date and valid
|
||
|
|
CRITICAL_SECTION csRLList; // The critical section for the process
|
||
|
|
} RLPI;
|
||
|
|
|
||
|
|
|
||
|
|
RLPI g_rlpi = {NULL, FALSE, FALSE};
|
||
|
|
|
||
|
|
// Simple DPA compare function make sure we don't have elsewhere...
|
||
|
|
|
||
|
|
int CALLBACK _CompareStrings(LPVOID sz1, LPVOID sz2, LPARAM lparam)
|
||
|
|
{
|
||
|
|
return lstrcmpi((LPTSTR)sz1, (LPTSTR)sz2);
|
||
|
|
}
|
||
|
|
|
||
|
|
void RLEnterCritical()
|
||
|
|
{
|
||
|
|
if (!g_rlpi.fCSInitialized)
|
||
|
|
{
|
||
|
|
// Do this under the global critical section.
|
||
|
|
ENTERCRITICAL;
|
||
|
|
if (!g_rlpi.fCSInitialized)
|
||
|
|
{
|
||
|
|
g_rlpi.fCSInitialized = TRUE;
|
||
|
|
InitializeCriticalSection(&g_rlpi.csRLList);
|
||
|
|
}
|
||
|
|
LEAVECRITICAL;
|
||
|
|
}
|
||
|
|
EnterCriticalSection(&g_rlpi.csRLList);
|
||
|
|
}
|
||
|
|
|
||
|
|
void RLLeaveCritical()
|
||
|
|
{
|
||
|
|
LeaveCriticalSection(&g_rlpi.csRLList);
|
||
|
|
}
|
||
|
|
|
||
|
|
|
||
|
|
// Enumerate through the registry looking for paths that
|
||
|
|
// we may wish to track. The current ones that we look for
|
||
|
|
|
||
|
|
STDAPI_(BOOL) RLEnumRegistry(HDPA hdpa, PRLCALLBACK pfnrlcb, LPCTSTR pszSource, LPCTSTR pszDest)
|
||
|
|
{
|
||
|
|
HKEY hkeyRoot;
|
||
|
|
|
||
|
|
// First look in the App Paths section
|
||
|
|
if (RegOpenKey(HKEY_LOCAL_MACHINE, REGSTR_PATH_APPPATHS, &hkeyRoot) == ERROR_SUCCESS)
|
||
|
|
{
|
||
|
|
int iRootName;
|
||
|
|
TCHAR szRootName[80];
|
||
|
|
for (iRootName = 0;
|
||
|
|
RegEnumKey(hkeyRoot, iRootName, szRootName, ARRAYSIZE(szRootName)) == ERROR_SUCCESS;
|
||
|
|
iRootName++)
|
||
|
|
{
|
||
|
|
// Now see if the app has a qualifid path here.
|
||
|
|
HKEY hkeySecond;
|
||
|
|
TCHAR szPath[MAX_PATH];
|
||
|
|
long cbValue = sizeof(szPath);
|
||
|
|
if (SHRegQueryValue(hkeyRoot, szRootName, szPath, &cbValue) == ERROR_SUCCESS)
|
||
|
|
{
|
||
|
|
PathUnquoteSpaces(szPath);
|
||
|
|
pfnrlcb(hdpa, hkeyRoot, szRootName, NULL, szPath, pszSource, pszDest);
|
||
|
|
}
|
||
|
|
|
||
|
|
// Now try to enum this key for Path Value.
|
||
|
|
if (RegOpenKey(hkeyRoot, szRootName, &hkeySecond) == ERROR_SUCCESS)
|
||
|
|
{
|
||
|
|
cbValue = sizeof(szPath);
|
||
|
|
|
||
|
|
if (SHQueryValueEx(hkeySecond, TEXT("PATH"), NULL, NULL, szPath, &cbValue) == ERROR_SUCCESS)
|
||
|
|
{
|
||
|
|
// this is a ";" separated list
|
||
|
|
LPTSTR psz = StrChr(szPath, TEXT(';'));
|
||
|
|
if (psz)
|
||
|
|
*psz = 0;
|
||
|
|
PathUnquoteSpaces(szPath);
|
||
|
|
pfnrlcb(hdpa, hkeySecond, NULL, TEXT("PATH"), szPath, pszSource, pszDest);
|
||
|
|
}
|
||
|
|
|
||
|
|
RegCloseKey(hkeySecond);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
RegCloseKey(hkeyRoot);
|
||
|
|
}
|
||
|
|
return TRUE;
|
||
|
|
}
|
||
|
|
|
||
|
|
// This is the call back called to build the list of paths.
|
||
|
|
|
||
|
|
BOOL CALLBACK _RLBuildListCallBack(HDPA hdpa, HKEY hkey, LPCTSTR pszKey,
|
||
|
|
LPCTSTR pszValueName, LPTSTR pszValue, LPCTSTR pszSource, LPCTSTR pszDest)
|
||
|
|
{
|
||
|
|
int iIndex;
|
||
|
|
|
||
|
|
// Also don't add any relative paths.
|
||
|
|
if (PathIsRelative(pszValue) || (lstrlen(pszValue) < 3))
|
||
|
|
return TRUE;
|
||
|
|
|
||
|
|
// Don't try UNC names as this can get expensive...
|
||
|
|
if (PathIsUNC(pszValue))
|
||
|
|
return TRUE;
|
||
|
|
|
||
|
|
// If it is already in our list, we can simply return now..
|
||
|
|
if (DPA_Search(hdpa, pszValue, 0, _CompareStrings, 0, DPAS_SORTED) != -1)
|
||
|
|
return TRUE;
|
||
|
|
|
||
|
|
// If it is in our old list then
|
||
|
|
if (g_rlpi.hdpaRLList && ((iIndex = DPA_Search(g_rlpi.hdpaRLList, pszValue, 0,
|
||
|
|
_CompareStrings, 0, DPAS_SORTED)) != -1))
|
||
|
|
{
|
||
|
|
// Found the item in the old list.
|
||
|
|
TraceMsg(TF_REG, "_RLBuildListCallBack: Add from old list %s", pszValue);
|
||
|
|
|
||
|
|
DPA_InsertPtr(hdpa,
|
||
|
|
DPA_Search(hdpa, pszValue, 0,
|
||
|
|
_CompareStrings, 0,
|
||
|
|
DPAS_SORTED|DPAS_INSERTBEFORE),
|
||
|
|
(LPTSTR)DPA_FastGetPtr(g_rlpi.hdpaRLList, iIndex));
|
||
|
|
// now remove it from the old list
|
||
|
|
DPA_DeletePtr(g_rlpi.hdpaRLList, iIndex);
|
||
|
|
}
|
||
|
|
else
|
||
|
|
{
|
||
|
|
// Not in either list.
|
||
|
|
// Now see if we can convert the short name to a long name
|
||
|
|
|
||
|
|
TCHAR szLongName[MAX_PATH];
|
||
|
|
int cchName;
|
||
|
|
LPTSTR psz;
|
||
|
|
|
||
|
|
if (!GetLongPathName(pszValue, szLongName, ARRAYSIZE(szLongName)))
|
||
|
|
szLongName[0] = 0;
|
||
|
|
|
||
|
|
if (lstrcmpi(szLongName, pszValue) == 0)
|
||
|
|
szLongName[0] = 0; // Don't need both strings.
|
||
|
|
|
||
|
|
cchName = lstrlen(pszValue);
|
||
|
|
|
||
|
|
psz = (LPTSTR)LocalAlloc(LPTR,
|
||
|
|
(cchName + 1 + lstrlen(szLongName) + 1) * sizeof(TCHAR));
|
||
|
|
if (psz)
|
||
|
|
{
|
||
|
|
TraceMsg(TF_REG, "_RLBuildListCallBack: Add %s", pszValue);
|
||
|
|
|
||
|
|
lstrcpy(psz, pszValue);
|
||
|
|
lstrcpy(psz + cchName + 1, szLongName);
|
||
|
|
|
||
|
|
return DPA_InsertPtr(hdpa,
|
||
|
|
DPA_Search(hdpa, pszValue, 0,
|
||
|
|
_CompareStrings, 0,
|
||
|
|
DPAS_SORTED|DPAS_INSERTBEFORE),
|
||
|
|
psz);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
return TRUE;
|
||
|
|
}
|
||
|
|
|
||
|
|
// This function will build the list of items that we
|
||
|
|
// will look through to see if the user may have changed the path of
|
||
|
|
// of one of the programs that is registered in the registry.
|
||
|
|
//
|
||
|
|
|
||
|
|
BOOL WINAPI RLBuildListOfPaths()
|
||
|
|
{
|
||
|
|
BOOL fRet = FALSE;
|
||
|
|
HDPA hdpa;
|
||
|
|
|
||
|
|
DEBUG_CODE( DWORD dwStart = GetCurrentTime(); )
|
||
|
|
|
||
|
|
RLEnterCritical();
|
||
|
|
|
||
|
|
hdpa = DPA_Create(0);
|
||
|
|
if (!hdpa)
|
||
|
|
goto Error;
|
||
|
|
|
||
|
|
|
||
|
|
// And initialize the list
|
||
|
|
fRet = RLEnumRegistry(hdpa, _RLBuildListCallBack, NULL, NULL);
|
||
|
|
|
||
|
|
|
||
|
|
// If we had on old list destroy it now.
|
||
|
|
|
||
|
|
if (g_rlpi.hdpaRLList)
|
||
|
|
{
|
||
|
|
// Walk through all of the items in the list and
|
||
|
|
// delete all of the strings.
|
||
|
|
int i;
|
||
|
|
for (i = DPA_GetPtrCount(g_rlpi.hdpaRLList)-1; i >= 0; i--)
|
||
|
|
LocalFree((HLOCAL)DPA_FastGetPtr(g_rlpi.hdpaRLList, i));
|
||
|
|
DPA_Destroy(g_rlpi.hdpaRLList);
|
||
|
|
}
|
||
|
|
|
||
|
|
g_rlpi.hdpaRLList = hdpa;
|
||
|
|
g_rlpi.fListValid = TRUE; // Say that we are valid...
|
||
|
|
|
||
|
|
DEBUG_CODE( TraceMsg(TF_REG, "RLBuildListOfPaths time: %ld", GetCurrentTime()-dwStart); )
|
||
|
|
|
||
|
|
Error:
|
||
|
|
|
||
|
|
RLLeaveCritical();
|
||
|
|
return fRet;
|
||
|
|
}
|
||
|
|
|
||
|
|
// this function does any cleanup necessary for when a process
|
||
|
|
// is no longer going to use the Registry list.
|
||
|
|
|
||
|
|
void WINAPI RLTerminate()
|
||
|
|
{
|
||
|
|
int i;
|
||
|
|
|
||
|
|
if (!g_rlpi.hdpaRLList)
|
||
|
|
return;
|
||
|
|
|
||
|
|
RLEnterCritical();
|
||
|
|
|
||
|
|
// Re-check under critical section in case somebody else destroyed
|
||
|
|
// it while we were waiting
|
||
|
|
if (g_rlpi.hdpaRLList)
|
||
|
|
{
|
||
|
|
// Walk through all of the items in the list and
|
||
|
|
// delete all of the strings.
|
||
|
|
for (i = DPA_GetPtrCount(g_rlpi.hdpaRLList)-1; i >= 0; i--)
|
||
|
|
LocalFree((HLOCAL)DPA_FastGetPtr(g_rlpi.hdpaRLList, i));
|
||
|
|
|
||
|
|
DPA_Destroy(g_rlpi.hdpaRLList);
|
||
|
|
g_rlpi.hdpaRLList = NULL;
|
||
|
|
}
|
||
|
|
RLLeaveCritical();
|
||
|
|
}
|
||
|
|
|
||
|
|
// This function returns TRUE if the path that is passed
|
||
|
|
// in is contained in one or more of the paths that we extracted from
|
||
|
|
// the registry.
|
||
|
|
|
||
|
|
int WINAPI RLIsPathInList(LPCTSTR pszPath)
|
||
|
|
{
|
||
|
|
int i = -1;
|
||
|
|
RLEnterCritical();
|
||
|
|
|
||
|
|
if (!g_rlpi.hdpaRLList || !g_rlpi.fListValid)
|
||
|
|
RLBuildListOfPaths();
|
||
|
|
|
||
|
|
if (g_rlpi.hdpaRLList)
|
||
|
|
{
|
||
|
|
int cchPath = lstrlen(pszPath);
|
||
|
|
|
||
|
|
for (i = DPA_GetPtrCount(g_rlpi.hdpaRLList) - 1; i >= 0; i--)
|
||
|
|
{
|
||
|
|
LPTSTR psz = DPA_FastGetPtr(g_rlpi.hdpaRLList, i);
|
||
|
|
if (PathCommonPrefix(pszPath, psz, NULL) == cchPath)
|
||
|
|
break;
|
||
|
|
|
||
|
|
// See if a long file name to check.
|
||
|
|
psz += lstrlen(psz) + 1;
|
||
|
|
if (*psz && (PathCommonPrefix(pszPath, psz, NULL) == cchPath))
|
||
|
|
break;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
RLLeaveCritical();
|
||
|
|
|
||
|
|
return i; // -1 if none, >= 0 index
|
||
|
|
}
|
||
|
|
|
||
|
|
// This is the call back called to build the list of of paths.
|
||
|
|
//
|
||
|
|
BOOL CALLBACK _RLRenameCallBack(HDPA hdpa, HKEY hkey, LPCTSTR pszKey,
|
||
|
|
LPCTSTR pszValueName, LPTSTR pszValue, LPCTSTR pszSource, LPCTSTR pszDest)
|
||
|
|
{
|
||
|
|
int cbMatch = PathCommonPrefix(pszValue, pszSource, NULL);
|
||
|
|
if (cbMatch == lstrlen(pszSource))
|
||
|
|
{
|
||
|
|
TCHAR szPath[MAX_PATH+64]; // Add some slop just in case...
|
||
|
|
// Found a match, lets try to rebuild the new line
|
||
|
|
lstrcpy(szPath, pszDest);
|
||
|
|
lstrcat(szPath, pszValue + cbMatch);
|
||
|
|
|
||
|
|
if (pszValueName)
|
||
|
|
RegSetValueEx(hkey, pszValueName, 0, REG_SZ, (BYTE *)szPath, (lstrlen(szPath) + 1) * sizeof(TCHAR));
|
||
|
|
else
|
||
|
|
RegSetValue(hkey, pszKey, REG_SZ, szPath, lstrlen(szPath));
|
||
|
|
}
|
||
|
|
|
||
|
|
// Make sure that we have not allready added
|
||
|
|
// this path to our list.
|
||
|
|
if (DPA_Search(hdpa, pszValue, 0, _CompareStrings, 0, DPAS_SORTED) == -1)
|
||
|
|
{
|
||
|
|
// One to Add!
|
||
|
|
LPTSTR psz = StrDup(pszValue);
|
||
|
|
if (psz)
|
||
|
|
{
|
||
|
|
return DPA_InsertPtr(hdpa,
|
||
|
|
DPA_Search(hdpa, pszValue, 0,
|
||
|
|
_CompareStrings, 0,
|
||
|
|
DPAS_SORTED | DPAS_INSERTBEFORE), psz);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
return TRUE;
|
||
|
|
}
|
||
|
|
|
||
|
|
// This function handles the cases when we are notified of
|
||
|
|
// a change to the file system and then we need to see if there are
|
||
|
|
// any changes that we need to make to the regisry to handle the changes.
|
||
|
|
|
||
|
|
int WINAPI RLFSChanged(LONG lEvent, LPITEMIDLIST pidl, LPITEMIDLIST pidlExtra)
|
||
|
|
{
|
||
|
|
TCHAR szSrc[MAX_PATH];
|
||
|
|
TCHAR szDest[MAX_PATH+8]; // For slop like Quotes...
|
||
|
|
int iIndex;
|
||
|
|
LPTSTR psz;
|
||
|
|
int iRet = -1;
|
||
|
|
int i;
|
||
|
|
|
||
|
|
// First see if the operation is something we are interested in.
|
||
|
|
if ((lEvent & (SHCNE_RENAMEITEM | SHCNE_RENAMEFOLDER)) == 0)
|
||
|
|
return -1; // Nope
|
||
|
|
|
||
|
|
if (!SHGetPathFromIDList(pidl, szSrc))
|
||
|
|
{
|
||
|
|
// must be a rename of a non-filesys object (such as a printer!)
|
||
|
|
return -1;
|
||
|
|
}
|
||
|
|
|
||
|
|
SHGetPathFromIDList(pidlExtra, szDest);
|
||
|
|
|
||
|
|
// If either are roots we really can not rename them...
|
||
|
|
if (PathIsRoot(szSrc) || PathIsRoot(szDest))
|
||
|
|
return -1;
|
||
|
|
|
||
|
|
// ignore if coming from bitbucket or going to ...
|
||
|
|
// check bitbucket first. that's a cheap call
|
||
|
|
if ((lEvent & SHCNE_RENAMEITEM) &&
|
||
|
|
(IsFileInBitBucket(szSrc) || IsFileInBitBucket(szDest)))
|
||
|
|
return -1;
|
||
|
|
|
||
|
|
RLEnterCritical();
|
||
|
|
// Now see if the source file is in our list of paths
|
||
|
|
iIndex = RLIsPathInList(szSrc);
|
||
|
|
if (iIndex != -1)
|
||
|
|
{
|
||
|
|
// Now make sure we are working with the short name
|
||
|
|
// Note we may only be a subpiece of this item.
|
||
|
|
// Count how many fields there are in the szSrc Now;
|
||
|
|
for (i = 0, psz = szSrc; psz; i++)
|
||
|
|
{
|
||
|
|
psz = StrChr(psz + 1, TEXT('\\'));
|
||
|
|
}
|
||
|
|
lstrcpy(szSrc, (LPTSTR)DPA_FastGetPtr(g_rlpi.hdpaRLList, iIndex));
|
||
|
|
|
||
|
|
// Now truncate off stuff that is not from us Go one more then we countd
|
||
|
|
// above and if we have a non null value cut it off there.
|
||
|
|
for (psz = szSrc; i > 0; i--)
|
||
|
|
{
|
||
|
|
psz = StrChr(psz+1, TEXT('\\'));
|
||
|
|
}
|
||
|
|
if (psz)
|
||
|
|
*psz = 0;
|
||
|
|
|
||
|
|
// verify that this is a fully qulified path and that it exists
|
||
|
|
// before we go and muck with the registry.
|
||
|
|
if (!PathIsRelative(szDest) && PathFileExistsAndAttributes(szDest, NULL) && (lstrlen(szDest) >= 3))
|
||
|
|
{
|
||
|
|
// Yes, so now lets reenum and try to update the paths...
|
||
|
|
PathGetShortPath(szDest); // Convert to a short name...
|
||
|
|
RLEnumRegistry(g_rlpi.hdpaRLList, _RLRenameCallBack, szSrc, szDest);
|
||
|
|
|
||
|
|
// We changed something so mark it to be rebuilt
|
||
|
|
g_rlpi.fListValid = FALSE; // Force it to rebuild.
|
||
|
|
iRet = 1;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
RLLeaveCritical();
|
||
|
|
|
||
|
|
return iRet;
|
||
|
|
}
|