errors with filesystem operations

[Hugo Florentino]

Hi,

I am trying to make a little application to revert the effect of some 
viruses on USB memories, and running it from Windows encountered some 
exceptions that IMHO should not have happened.
Maybe I am missing something. Can you please check the commented blocks 
for errors?

Also, is there a way from Linux to remove attributes readonly, system, 
hidden ?

Regards, Hugo



import std.stdio;
import std.path;
import std.regex;
import std.file;
import std.string;

static string info = "CureUSB 0.3 (2014-01-14)";
static string str_moved   = "Moved";
static string str_deleted = "Deleted";
static string str_finished   = "Done";
static string str_setattrib = "Attributes set";
static string str_safename = "SafeToDelete";

// Expression to match directories with blanks for name
static auto re = regex(`^\s+$`);

version(Windows)
{
  import core.sys.windows.windows;
  extern(Windows) uint SetFileAttributesA(LPCSTR, DWORD);
}

int main()
{
  string ExePath = thisExePath();
  string SearchPath = rootName(ExePath);
  string BlankDirToDelete;

  version(Windows) SetConsoleOutputCP(65001);
  writefln(info);

  foreach(DirEntry d; dirEntries(SearchPath, SpanMode.shallow))
  {
    auto m = matchFirst(baseName(d.name), re);
    if (m.captures.length > 0)
    {
      if (isDir(d.name))
      {
        foreach(DirEntry f; dirEntries(d.name, SpanMode.shallow))
        {
          string origname = buildPath(SearchPath, baseName(f.name));
          rename(f.name, origname);
          writefln(`%s "%s"`, str_moved, origname);
        }
        BlankDirToDelete = d.name;
      }

      break;
    }
  }

  // The following block does not work; supposedly the process does not 
have
  // access to the directory because it is being used by another 
process,
  // which does not seem to be the case. Uncomment to try
  /*
  if (exists(BlankDirToDelete)) try
  {
    string SafeToBeDeleted = buildPath(SearchPath, str_safename)
    rename(BlankDirToDelete, SafeToBeDeleted);
    remove(SafeToBeDeleted);
  }
  catch (FileException e)
    writeln(e.msg);
  */

  foreach(DirEntry d; dirEntries(SearchPath, SpanMode.shallow))
  {
    if (d.name != ExePath)
    {
      string bname = baseName(d.name);
      version(Windows)
      {
        if ( (bname != "RECYCLER")
          && (bname != "$Recycle.bin")
          && (bname != "System Volume Information")
          && (bname != "Recovery")
          && (bname != "MSOCache")
        ) SetFileAttributesA(toStringz(d.name), FILE_ATTRIBUTE_NORMAL + 
FILE_ATTRIBUTE_ARCHIVE);
      }

      // The following block gives a FileException, claiming that the 
specified file
      // could not befound. Uncomment to try
      /*
      string exten = extension(d.name);
      if (exten.length > 0)
      {
        // writefln(`"%s" "%s"`, d.name, extension(d.name)); //debug 
line
        if ( (exten == ".exe")
          || (exten == ".lnk")
          || (exten == ".scr")
          || (exten == ".cpl")
          || (exten == ".hta")
          || (exten == ".com")
          || (exten == ".bat")
          || (exten == ".vb")
          || (exten == ".vbs") )
          if (isDir(buildPath(SearchPath, 
stripExtension(baseName(d.name)))))
          {
            remove(d.name);
            writefln(`%s "%s"`, str_deleted, d.name);
          }
      }
      */
    }
  }

  writefln("%s", str_setattrib);

  writefln("%s.", str_finished);

  return 0;
}