sfx2/source/doc/sfxacldetect.cxx

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  28
  29
  30
  31
  32 #if EXTRA_ACL_CHECK
  33
  34 #ifdef WNT
  35
  36 // necessary to include system headers without warnings
  37 #ifdef _MSC_VER
  38 #pragma warning(disable:4668 4917)
  39 #endif
  40
  41 #include <windows.h>
  42 #include <lmaccess.h>
  43 #include <sal/types.h>
  44
  45 sal_Bool IsReadonlyAccordingACL( const sal_Unicode* pFilePath )
  46 {
  47     sal_Bool bResult = sal_False;
  48
  49     sal_uInt32 nFDSize = 0;
  50     GetFileSecurityW( reinterpret_cast< LPCWSTR >(pFilePath), DACL_SECURITY_INFORMATION|GROUP_SECURITY_INFORMATION|OWNER_SECURITY_INFORMATION, NULL, 0, &nFDSize );
  51     if ( nFDSize )
  52     {
  53         PSECURITY_DESCRIPTOR pFileDescr = reinterpret_cast< PSECURITY_DESCRIPTOR >( malloc( nFDSize ) );
  54         if ( GetFileSecurityW( reinterpret_cast< LPCWSTR >(pFilePath), DACL_SECURITY_INFORMATION|GROUP_SECURITY_INFORMATION|OWNER_SECURITY_INFORMATION, pFileDescr, nFDSize, &nFDSize ) )
  55         {
  56             HANDLE hToken = NULL;
  57             if ( OpenThreadToken( GetCurrentThread(), TOKEN_DUPLICATE|TOKEN_QUERY, TRUE, &hToken )
  58               || OpenProcessToken( GetCurrentProcess(), TOKEN_DUPLICATE|TOKEN_QUERY, &hToken) )
  59             {
  60                 HANDLE hImpersonationToken = NULL;
  61                 if ( DuplicateToken( hToken, SecurityImpersonation, &hImpersonationToken) )
  62                 {
  63                     sal_uInt32 nDesiredAccess = ACCESS_WRITE;
  64                     GENERIC_MAPPING aGenericMapping = { ACCESS_READ, ACCESS_WRITE, 0, ACCESS_READ | ACCESS_WRITE };
  65                     MapGenericMask( &nDesiredAccess, &aGenericMapping );
  66
  67                     PRIVILEGE_SET aPrivilegeSet;
  68                     sal_uInt32 nPrivilegeSetSize = sizeof( PRIVILEGE_SET );
  69
  70                     sal_uInt32 nGrantedAccess;
  71                     BOOL bAccessible = TRUE;
  72                     if ( AccessCheck( pFileDescr,
  73                                       hImpersonationToken,
  74                                       nDesiredAccess,
  75                                       &aGenericMapping,
  76                                       &aPrivilegeSet,
  77                                       &nPrivilegeSetSize,
  78                                       &nGrantedAccess,
  79                                       &bAccessible ) )
  80                     {
  81                         bResult = !bAccessible;
  82                     }
  83
  84                     CloseHandle( hImpersonationToken );
  85                 }
  86
  87                 CloseHandle( hToken );
  88             }
  89         }
  90
  91         free( pFileDescr );
  92     }
  93
  94     return bResult;
  95 }
  96
  97 #else // this is UNX
  98
  99
 100 #include <sal/types.h>
 101
 102 sal_Bool IsReadonlyAccordingACL( const sal_Unicode* )
 103 {
 104     // to be implemented
 105     return sal_False;
 106 }
 107
 108 #endif
 109
 110 #endif
 111
 112 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */