Self-healing index.php???

	
   $pathtoroot = substr($base_path, 0, strpos($base_path, 'public_html'));
   require_once($pathtoroot.'thehash.php');
   $chkmd5return = md5_file('index.php');
   if ($chkmd5return != $md5hash)    
   {
		$backuprestored = copy($pathtoroot.'indexbackup.php', 'index.php');
		if ($backuprestored)
		{
			header("Location: .");
		}
		else
		{
			//should log the problem to an error file
		} 
   }

$md5hash = 'your_checksum_from_above';  //could get this from the DB if stored there
$chkmd5return = md5_file('index.php');
if ($chkmd5return != $md5hash)    
   {
                $pathtoroot = substr(MODX_BASE_PATH, 0, -strlen(MODX_BASE_URL)) . '/';
                if (strpos($pathtoroot,'public_html')>0 ) $pathtoroot = substr(MODX_BASE_PATH, 0, strpos(MODX_BASE_PATH, 'public_html'));
                //if backup copy is buried above the root in a subfolder, append that here
		$backuprestored = copy($pathtoroot.'indexbackup.php', 'index.php');  //assumes you named backup copy indexbackup.php
                $emailaddy = '[email protected]';
		if ($backuprestored) 
		{
                        $message = 'Backup restored for '.MODX_SITE_URL;
			header("Location: .");
		}
		else
		{
                        $message = 'Tried to restore backup copy but failed for '.MODX_SITE_URL;
                        //try a backup plan?
                        //how log message to system?
			//should log the problem to an error file
		} 
                mail($emailaddy,'Checksum analysis',$message);
   }