*.xml and *.html files could be deleted at document root

We currently have a .xml file and a couple of static .html files (for apache errors as an example). We had noticed that these files were randomly being deleted from the document root. As a result of some digging I was able to determine that the problem lies with the combination of the glob() call and the boost_file_path function.

    $tempA = glob(boost_file_path($path, FALSE, NULL) . (($wildcard) ? '*' : '') . BOOST_FILE_EXTENSION, GLOB_NOSORT);
    $tempB = glob(boost_file_path($path, FALSE, NULL) . (($wildcard) ? '*' : '') . BOOST_XML_EXTENSION, GLOB_NOSORT);

in some instances the boost_file_path function returns false (especially since the $query param is FALSE). As a temporary solution to this I wrapped these in a conditional:

 if(boost_file_path($path, FALSE, NULL) !== FALSE) {
    $tempA = glob(boost_file_path($path, FALSE, NULL) . (($wildcard) ? '*' : '') . BOOST_FILE_EXTENSION, GLOB_NOSORT);
    $tempB = glob(boost_file_path($path, FALSE, NULL) . (($wildcard) ? '*' : '') . BOOST_XML_EXTENSION, GLOB_NOSORT);
  }

This will ensure that there is always a path before the *.[ext]