/**
* Recursively scan the entire $start_dir directory and return file size
* and last modified date of every regular file. Ignore files and file
* types specified in file scanner settings.
* @global AIO_WP_Security $aio_wp_security
* @param string $start_dir
* @return array
*/
function do_file_change_scan($start_dir = ABSPATH)
{
global $aio_wp_security;
$filescan_data = array();
// Iterator key is absolute file path, iterator value is SplFileInfo object,
// iteration skips '..' and '.' records, because we're not interested in directories.
$dit = new RecursiveDirectoryIterator($start_dir, FilesystemIterator::KEY_AS_PATHNAME | FilesystemIterator::CURRENT_AS_FILEINFO | FilesystemIterator::SKIP_DOTS);
$rit = new RecursiveIteratorIterator($dit, RecursiveIteratorIterator::SELF_FIRST, RecursiveIteratorIterator::CATCH_GET_CHILD);
// Grab files/directories to skip
$files_to_skip = AIOWPSecurity_Utility::explode_trim_filter_empty($aio_wp_security->configs->get_value('aiowps_fcd_exclude_files'));
// Grab (lowercased) file types to skip
$file_types_to_skip = AIOWPSecurity_Utility::explode_trim_filter_empty(strtolower($aio_wp_security->configs->get_value('aiowps_fcd_exclude_filetypes')));
$start_dir_length = strlen($start_dir);
foreach ($rit as $filename => $fileinfo) {
if (!file_exists($filename) || is_dir($filename)) {
continue;
// if file doesn't exist or is a directory move on to next iteration
}
if ($fileinfo->getFilename() == 'wp-security-log-cron-job.txt' || $fileinfo->getFilename() == 'wp-security-log.txt') {
continue;
// skip aiowps log files
}
// Let's omit any file types from the scan which were specified in the settings if necessary
if (!empty($file_types_to_skip)) {
//$current_file_ext = strtolower($fileinfo->getExtension()); //getExtension() only available on PHP 5.3.6 or higher
$ext = strtolower(pathinfo($filename, PATHINFO_EXTENSION));
if (in_array($ext, $file_types_to_skip)) {
continue;
}
}
// Let's omit specific files or directories from the scan which were specified in the settings
if (!empty($files_to_skip)) {
$skip_this = false;
foreach ($files_to_skip as $f_or_dir) {
// Expect files/dirs to be specified relatively to $start_dir,
// so start searching at $start_dir_length offset.
if (strpos($filename, $f_or_dir, $start_dir_length) !== false) {
$skip_this = true;
break;
// !
}
}
if ($skip_this) {
continue;
}
}
$filescan_data[$filename] = array('last_modified' => $fileinfo->getMTime(), 'filesize' => $fileinfo->getSize());
}
return $filescan_data;
}
