[cfinck] 40439: - Remove _SHExpandEnvironmentStrings and replace calls to it by usual ExpandEnvironmentStringsW calls. That function didn't really do what it should as it replaced some variables by faulty generated values instead of their actual values. Fixing this gets us rid of our duplicated "Administrator" directory, so the only remaining Admin dir is "Administrator.REACTOS" created by userenv. This might also fix the SHGetFolderPathW timing issue, which was hit by rosautotest from time to t

Author: cfinck
Date: Fri Apr 10 20:05:09 2009
New Revision: 40439

URL: http://svn.reactos.org/svn/reactos?rev=40439&view=rev
Log:
- Remove _SHExpandEnvironmentStrings and replace calls to it by usual
ExpandEnvironmentStringsW calls.
  That function didn't really do what it should as it replaced some variables by
faulty generated values instead of their actual values.

  Fixing this gets us rid of our duplicated "Administrator" directory, so the
only remaining Admin dir is "Administrator.REACTOS" created by userenv.
  This might also fix the SHGetFolderPathW timing issue, which was hit by rosautotest from
time to time.
- In turn, removing that function makes it possible to get rid of the now unused
_SHOpenProfilesKey and _SHGetProfilesValue functions.

Modified:
    trunk/reactos/dll/win32/shell32/shellpath.c

Modified: trunk/reactos/dll/win32/shell32/shellpath.c
URL:
http://svn.reactos.org/svn/reactos/trunk/reactos/dll/win32/shell32/shellpat…
==============================================================================
--- trunk/reactos/dll/win32/shell32/shellpath.c [iso-8859-1] (original)
+++ trunk/reactos/dll/win32/shell32/shellpath.c [iso-8859-1] Fri Apr 10 20:05:09 2009
@@ -909,8 +909,6 @@
     }
 };
 
-static HRESULT _SHExpandEnvironmentStrings(LPCWSTR szSrc, LPWSTR szDest);
-
 /* Gets the value named value from the registry key
  * rootKey\Software\Microsoft\Windows\CurrentVersion\Explorer\User Shell Folders
  * (or from rootKey\userPrefix\... if userPrefix is not NULL) into path, which
@@ -974,7 +972,7 @@
         {
             WCHAR szTemp[MAX_PATH];
 
-            _SHExpandEnvironmentStrings(path, szTemp);
+            ExpandEnvironmentStringsW(path, szTemp, MAX_PATH);
             lstrcpynW(path, szTemp, MAX_PATH);
         }
         ret = RegSetValueExW(shellFolderKey, value, 0, REG_SZ, (LPBYTE)path,
@@ -1240,164 +1238,6 @@
             hr = _SHGetDefaultValue(folder, pszPath);
     }
     TRACE("returning 0x%08x (output path is %s)\n", hr, debugstr_w(pszPath));
-    return hr;
-}
-
-static HRESULT _SHOpenProfilesKey(PHKEY pKey)
-{
-    LONG lRet;
-    DWORD disp;
-
-    lRet = RegCreateKeyExW(HKEY_LOCAL_MACHINE, ProfileListW, 0, NULL, 0,
-     KEY_ALL_ACCESS, NULL, pKey, &disp);
-    return HRESULT_FROM_WIN32(lRet);
-}
-
-/* Reads the value named szValueName from the key profilesKey (assumed to be
- * opened by _SHOpenProfilesKey) into szValue, which is assumed to be MAX_PATH
- * WCHARs in length.  If it doesn't exist, returns szDefault (and saves
- * szDefault to the registry).
- */
-static HRESULT _SHGetProfilesValue(HKEY profilesKey, LPCWSTR szValueName,
- LPWSTR szValue, LPCWSTR szDefault)
-{
-    HRESULT hr;
-    DWORD type, dwPathLen = MAX_PATH * sizeof(WCHAR);
-    LONG lRet;
-
-    TRACE("%p,%s,%p,%s\n", profilesKey, debugstr_w(szValueName), szValue,
-     debugstr_w(szDefault));
-    lRet = RegQueryValueExW(profilesKey, szValueName, NULL, &type,
-     (LPBYTE)szValue, &dwPathLen);
-    if (!lRet && (type == REG_SZ || type == REG_EXPAND_SZ) && dwPathLen
-     && *szValue)
-    {
-        dwPathLen /= sizeof(WCHAR);
-        szValue[dwPathLen] = '\0';
-        hr = S_OK;
-    }
-    else
-    {
-        /* Missing or invalid value, set a default */
-        lstrcpynW(szValue, szDefault, MAX_PATH);
-        TRACE("Setting missing value %s to %s\n", debugstr_w(szValueName),
-                                                  debugstr_w(szValue));
-        lRet = RegSetValueExW(profilesKey, szValueName, 0, REG_EXPAND_SZ,
-                              (LPBYTE)szValue,
-                              (wcslen(szValue) + 1) * sizeof(WCHAR));
-        if (lRet)
-            hr = HRESULT_FROM_WIN32(lRet);
-        else
-            hr = S_OK;
-    }
-    TRACE("returning 0x%08x (output value is %s)\n", hr, debugstr_w(szValue));
-    return hr;
-}
-
-/* Attempts to expand environment variables from szSrc into szDest, which is
- * assumed to be MAX_PATH characters in length.  Before referring to the
- * environment, handles a few variables directly, because the environment
- * variables may not be set when this is called (as during Wine's installation
- * when default values are being written to the registry).
- * The directly handled environment variables, and their source, are:
- * - ALLUSERSPROFILE, USERPROFILE: reads from the registry
- * - SystemDrive: uses GetSystemDirectoryW and uses the drive portion of its
- *   path
- * If one of the directly handled environment variables is expanded, only
- * expands a single variable, and only in the beginning of szSrc.
- */
-static HRESULT _SHExpandEnvironmentStrings(LPCWSTR szSrc, LPWSTR szDest)
-{
-    HRESULT hr;
-    WCHAR szTemp[MAX_PATH], szProfilesPrefix[MAX_PATH] = { 0 };
-    HKEY key = NULL;
-
-    TRACE("%s, %p\n", debugstr_w(szSrc), szDest);
-
-    if (!szSrc || !szDest) return E_INVALIDARG;
-
-    /* short-circuit if there's nothing to expand */
-    if (szSrc[0] != '%')
-    {
-        wcscpy(szDest, szSrc);
-        hr = S_OK;
-        goto end;
-    }
-    /* Get the profile prefix, we'll probably be needing it */
-    hr = _SHOpenProfilesKey(&key);
-    if (SUCCEEDED(hr))
-    {
-        WCHAR szDefaultProfilesPrefix[MAX_PATH];
-
-        GetWindowsDirectoryW(szDefaultProfilesPrefix, MAX_PATH);
-        PathAddBackslashW(szDefaultProfilesPrefix);
-        PathAppendW(szDefaultProfilesPrefix, szDefaultProfileDirW);
-        hr = _SHGetProfilesValue(key, ProfilesDirectoryW, szProfilesPrefix,
-         szDefaultProfilesPrefix);
-    }
-
-    *szDest = 0;
-    wcscpy(szTemp, szSrc);
-    while (SUCCEEDED(hr) && szTemp[0] == '%')
-    {
-        if (!strncmpiW(szTemp, AllUsersProfileW, wcslen(AllUsersProfileW)))
-        {
-            WCHAR szAllUsers[MAX_PATH];
-
-            wcscpy(szDest, szProfilesPrefix);
-            hr = _SHGetProfilesValue(key, AllUsersProfileValueW,
-             szAllUsers, AllUsersW);
-            PathAppendW(szDest, szAllUsers);
-            PathAppendW(szDest, szTemp + wcslen(AllUsersProfileW));
-        }
-        else if (!strncmpiW(szTemp, UserProfileW, wcslen(UserProfileW)))
-        {
-            WCHAR userName[MAX_PATH];
-            DWORD userLen = MAX_PATH;
-
-            wcscpy(szDest, szProfilesPrefix);
-            GetUserNameW(userName, &userLen);
-            PathAppendW(szDest, userName);
-            PathAppendW(szDest, szTemp + wcslen(UserProfileW));
-        }
-        else if (!strncmpiW(szTemp, SystemDriveW, wcslen(SystemDriveW)))
-        {
-            GetSystemDirectoryW(szDest, MAX_PATH);
-            if (szDest[1] != ':')
-            {
-                FIXME("non-drive system paths unsupported\n");
-                hr = E_FAIL;
-            }
-            else
-            {
-                wcscpy(szDest + 3, szTemp + wcslen(SystemDriveW) + 1);
-                hr = S_OK;
-            }
-        }
-        else
-        {
-            DWORD ret = ExpandEnvironmentStringsW(szSrc, szDest, MAX_PATH);
-
-            if (ret > MAX_PATH)
-                hr = HRESULT_FROM_WIN32(ERROR_INSUFFICIENT_BUFFER);
-            else if (ret == 0)
-                hr = HRESULT_FROM_WIN32(GetLastError());
-            else
-                hr = S_OK;
-        }
-        if (SUCCEEDED(hr) && szDest[0] == '%')
-            wcscpy(szTemp, szDest);
-        else
-        {
-            /* terminate loop */
-            szTemp[0] = '\0';
-        }
-    }
-end:
-    if (key)
-        RegCloseKey(key);
-    TRACE("returning 0x%08x (input was %s, output is %s)\n", hr,
-     debugstr_w(szSrc), debugstr_w(szDest));
     return hr;
 }
 
@@ -1557,9 +1397,20 @@
 
     /* Expand environment strings if necessary */
     if (*szTemp == '%')
-        hr = _SHExpandEnvironmentStrings(szTemp, szBuildPath);
+    {
+        DWORD ExpandRet = ExpandEnvironmentStringsW(szTemp, szBuildPath, MAX_PATH);
+
+        if (ExpandRet > MAX_PATH)
+            hr = HRESULT_FROM_WIN32(ERROR_INSUFFICIENT_BUFFER);
+        else if (ExpandRet == 0)
+            hr = HRESULT_FROM_WIN32(GetLastError());
+        else
+            hr = S_OK;
+    }
     else
+    {
         wcscpy(szBuildPath, szTemp);
+    }
 
     if (FAILED(hr)) goto end;