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320 lines
10 KiB
320 lines
10 KiB
#include "precomp.hxx"
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#pragma hdrstop
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#include <shguidp.h> // CLSID_MyDocuments, CLSID_ShellFSFolder
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#include <shlobjp.h> // SHFlushSFCache()
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#include "util.h"
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#include "dll.h"
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#include "resource.h"
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#include "sddl.h"
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#include "strsafe.h"
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HRESULT GetFolderDisplayName(UINT csidl, LPTSTR pszPath, UINT cch)
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{
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*pszPath = 0;
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LPITEMIDLIST pidl;
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if (SUCCEEDED(SHGetFolderLocation(NULL, csidl | CSIDL_FLAG_CREATE, NULL, SHGFP_TYPE_CURRENT, &pidl)))
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{
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SHGetNameAndFlags(pidl, SHGDN_NORMAL, pszPath, cch, NULL);
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ILFree(pidl);
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}
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return *pszPath ? S_OK : E_FAIL;
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}
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#define MYDOCS_CLSID TEXT("{450d8fba-ad25-11d0-98a8-0800361b1103}") // CLSID_MyDocuments
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// Create/Updates file in SendTo directory to have current display name
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void UpdateSendToFile()
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{
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TCHAR szSendToDir[MAX_PATH];
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if (S_OK == SHGetFolderPath(NULL, CSIDL_SENDTO, NULL, SHGFP_TYPE_CURRENT, szSendToDir))
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{
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// Create c:\winnt\profile\chrisg\sendto\<display name>.mydocs
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BOOL bDeleteOnly = FALSE;
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TCHAR szNewFile[MAX_PATH];
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TCHAR szName[MAX_PATH];
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if (SUCCEEDED(GetFolderDisplayName(CSIDL_PERSONAL, szName, ARRAYSIZE(szName))))
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{
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PathCleanupSpec(NULL, szName); // map any illegal chars to file sys chars
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PathRemoveBlanks(szName);
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PathCombine(szNewFile, szSendToDir, szName);
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StringCchCat(szNewFile, ARRAYSIZE(szNewFile), TEXT(".mydocs"));
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}
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else
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{
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// we can't create a new file, because we don't have a name
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bDeleteOnly = TRUE;
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}
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TCHAR szFile[MAX_PATH];
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WIN32_FIND_DATA fd;
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// delete c:\winnt\profile\chrisg\sendto\*.mydocs
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PathCombine(szFile, szSendToDir, TEXT("*.mydocs"));
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HANDLE hFind = FindFirstFile(szFile, &fd);
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if (hFind != INVALID_HANDLE_VALUE)
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{
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do
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{
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PathCombine(szFile, szSendToDir, fd.cFileName);
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if (0 == lstrcmp(szFile, szNewFile))
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{
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// The file that we needed to create already exists,
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// just leave it in place instead of deleting it and
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// then creating it again below (this fixes
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// app compat problems - see NT bug 246932)
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bDeleteOnly = TRUE;
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// file now has the exact display name, MUI adjusts the return from GetFolderDisplayName and
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// since we run this every time we dont have to worry about localizing the sendto target.
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}
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else
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{
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DeleteFile(szFile);
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}
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} while (FindNextFile(hFind, &fd));
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FindClose(hFind);
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}
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if (!bDeleteOnly)
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{
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hFind = CreateFile(szNewFile, GENERIC_WRITE, 0, NULL, CREATE_NEW, FILE_ATTRIBUTE_NORMAL, NULL);
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if (hFind != INVALID_HANDLE_VALUE)
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{
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CloseHandle(hFind);
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// file now has the exact display name, MUI adjusts the return from GetFolderDisplayName and
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// since we run this every time we dont have to worry about localizing the sendto target.
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}
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else
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{
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// might be illegal chars in the file name, fall back to the default MyDocs name here
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}
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}
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}
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}
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// test pszChild against pszParent to see if
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// pszChild is equal (PATH_IS_EQUAL) or
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// a DIRECT child (PATH_IS_CHILD)
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DWORD ComparePaths(LPCTSTR pszChild, LPCTSTR pszParent)
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{
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DWORD dwRet = PATH_IS_DIFFERENT;
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TCHAR szParent[MAX_PATH];
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StringCchCopy(szParent, ARRAYSIZE(szParent), pszParent);
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if (PathIsRoot(szParent) && (-1 != PathGetDriveNumber(szParent)))
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{
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szParent[2] = 0; // trip D:\ -> D: to make code below work
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}
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INT cchParent = lstrlen(szParent);
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INT cchChild = lstrlen(pszChild);
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if (cchParent <= cchChild)
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{
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TCHAR szChild[MAX_PATH];
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StringCchCopy(szChild, ARRAYSIZE(szChild), pszChild);
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LPTSTR pszChildSlice = szChild + cchParent;
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if (TEXT('\\') == *pszChildSlice)
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{
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*pszChildSlice = 0;
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}
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if (lstrcmpi(szChild, szParent) == 0)
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{
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if (cchParent < cchChild)
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{
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LPTSTR pTmp = pszChildSlice + 1;
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while (*pTmp && *pTmp != TEXT('\\'))
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{
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pTmp++; // find second level path segments
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}
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if (!(*pTmp))
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{
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dwRet = PATH_IS_CHILD; // direct child
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}
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}
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else
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{
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dwRet = PATH_IS_EQUAL;
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}
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}
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}
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return dwRet;
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}
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// Checks the path to see if it is marked as system or read only and
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// then check desktop.ini for CLSID or CLSID2 entry...
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BOOL IsPathAlreadyShellFolder(LPCTSTR pszPath, DWORD dwAttrib)
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{
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BOOL bIsShellFolder = FALSE;
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if (PathIsSystemFolder(pszPath, dwAttrib))
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{
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TCHAR szDesktopIni[MAX_PATH];
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PathCombine(szDesktopIni, pszPath, TEXT("desktop.ini"));
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// Check for CLSID entry...
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TCHAR szBuffer[MAX_PATH];
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GetPrivateProfileString(TEXT(".ShellClassInfo"), TEXT("CLSID"), TEXT("foo"), szBuffer, ARRAYSIZE(szBuffer), szDesktopIni);
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if ((lstrcmpi(szBuffer, TEXT("foo")) !=0) &&
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(lstrcmpi(szBuffer, MYDOCS_CLSID) !=0))
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{
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bIsShellFolder = TRUE;
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}
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// Check for CLSID2 entry...
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GetPrivateProfileString(TEXT(".ShellClassInfo"), TEXT("CLSID2"), TEXT("foo"), szBuffer, ARRAYSIZE(szBuffer), szDesktopIni);
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if ((lstrcmpi(szBuffer, TEXT("foo")) != 0) &&
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(lstrcmpi(szBuffer, MYDOCS_CLSID) != 0))
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{
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bIsShellFolder = TRUE;
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}
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}
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return bIsShellFolder;
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}
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const struct
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{
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DWORD dwDir;
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DWORD dwFlags;
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DWORD dwRet;
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}
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_adirs[] =
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{
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{ CSIDL_DESKTOP, PATH_IS_EQUAL | PATH_IS_CHILD, PATH_IS_DESKTOP },
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{ CSIDL_PERSONAL, PATH_IS_EQUAL , PATH_IS_MYDOCS },
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{ CSIDL_SENDTO, PATH_IS_EQUAL | PATH_IS_CHILD, PATH_IS_SENDTO },
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{ CSIDL_RECENT, PATH_IS_EQUAL | PATH_IS_CHILD, PATH_IS_RECENT },
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{ CSIDL_HISTORY, PATH_IS_EQUAL | PATH_IS_CHILD, PATH_IS_HISTORY },
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{ CSIDL_COOKIES, PATH_IS_EQUAL | PATH_IS_CHILD, PATH_IS_COOKIES },
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{ CSIDL_PRINTHOOD, PATH_IS_EQUAL | PATH_IS_CHILD, PATH_IS_PRINTHOOD },
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{ CSIDL_NETHOOD, PATH_IS_EQUAL | PATH_IS_CHILD, PATH_IS_NETHOOD },
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{ CSIDL_STARTMENU, PATH_IS_EQUAL | PATH_IS_CHILD, PATH_IS_STARTMENU },
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{ CSIDL_TEMPLATES, PATH_IS_EQUAL | PATH_IS_CHILD, PATH_IS_TEMPLATES },
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{ CSIDL_FAVORITES, PATH_IS_EQUAL | PATH_IS_CHILD, PATH_IS_FAVORITES },
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{ CSIDL_FONTS, PATH_IS_EQUAL | PATH_IS_CHILD, PATH_IS_FONTS },
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{ CSIDL_APPDATA, PATH_IS_EQUAL | PATH_IS_CHILD, PATH_IS_APPDATA },
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{ CSIDL_INTERNET_CACHE, PATH_IS_EQUAL | PATH_IS_CHILD, PATH_IS_TEMP_INET },
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{ CSIDL_COMMON_STARTMENU, PATH_IS_EQUAL | PATH_IS_CHILD, PATH_IS_STARTMENU },
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{ CSIDL_COMMON_DESKTOPDIRECTORY, PATH_IS_EQUAL | PATH_IS_CHILD, PATH_IS_DESKTOP },
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{ CSIDL_WINDOWS, PATH_IS_EQUAL | PATH_IS_CHILD, PATH_IS_WINDOWS },
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{ CSIDL_SYSTEM, PATH_IS_EQUAL | PATH_IS_CHILD, PATH_IS_SYSTEM },
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{ CSIDL_PROFILE, PATH_IS_EQUAL , PATH_IS_PROFILE },
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};
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BOOL PathEndsInDot(LPCTSTR pszPath)
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{
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// CreateDirectory("c:\foo.") or CreateDirectory("c:\foo.....")
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// will succeed but create a directory named "c:\foo", which isn't
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// what the user asked for. So we use this function to guard
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// against those cases.
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//
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// Note that this simple test also picks off "c:\foo\." -- ok for
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// our purposes.
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UINT cLen = lstrlen(pszPath);
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return (cLen >= 1) && (pszPath[cLen - 1] == TEXT('.'));
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}
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//
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// Checks the path to see if it is okay as a MyDocs path
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//
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DWORD IsPathGoodMyDocsPath(HWND hwnd, LPCTSTR pszPath)
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{
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if (NULL == pszPath)
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{
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return PATH_IS_ERROR;
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}
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TCHAR szRootPath[MAX_PATH];
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StringCchCopy(szRootPath, ARRAYSIZE(szRootPath), pszPath);
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if (!PathStripToRoot(szRootPath))
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{
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return PATH_IS_ERROR;
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}
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if (PathEndsInDot(pszPath))
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{
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return PATH_IS_ERROR;
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}
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DWORD dwRes, dwAttr = GetFileAttributes(pszPath);
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if (dwAttr == 0xFFFFFFFF)
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{
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if (0xFFFFFFFF == GetFileAttributes(szRootPath))
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{
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// If the root path doesn't exist, then we're not going
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// to be able to create a path:
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return PATH_IS_ERROR;
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}
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else
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{
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return PATH_IS_NONEXISTENT;
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}
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}
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if (!(dwAttr & FILE_ATTRIBUTE_DIRECTORY))
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{
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return PATH_IS_NONDIR;
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}
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for (int i = 0; i < ARRAYSIZE(_adirs); i++)
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{
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TCHAR szPathToCheck[MAX_PATH];
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//
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// Check for various special shell folders
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//
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if (S_OK == SHGetFolderPath(hwnd, _adirs[i].dwDir | CSIDL_FLAG_DONT_VERIFY, NULL, SHGFP_TYPE_CURRENT, szPathToCheck))
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{
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dwRes = ComparePaths(pszPath, szPathToCheck);
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if (dwRes & _adirs[i].dwFlags)
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{
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//
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// The inevitable exceptions
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//
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switch (_adirs[i].dwDir)
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{
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case CSIDL_DESKTOP:
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if (PATH_IS_CHILD == dwRes)
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{
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continue; // allowing subfolder of CSIDL_DESKTOP
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}
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break;
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default:
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break;
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} // switch
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return _adirs[i].dwRet;
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}
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}
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}
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//
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// Make sure path isn't set as a system or some other kind of
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// folder that already has a CLSID or CLSID2 entry...
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//
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if (IsPathAlreadyShellFolder(pszPath, dwAttr))
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{
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return PATH_IS_SHELLFOLDER;
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}
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return PATH_IS_GOOD;
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}
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