Source for file do.php

<?php
session_start();
include_once('includes/config.inc.php');
include_once('includes/common.inc.php');
doAuthCheck();
 
if (!empty($_GET['action'])) { 
  $sAction = $_GET['action']; 
}
else { 
  $sAction = $_POST['action'];
}
 
if (!empty($_GET['component'])) {
    // TODO: do some input validation to make sure "action" and "component" is what we think it is
    include('components/'.$_GET['component'].'/actions/'.$sAction.'.inc.php');
}
elseif (!empty($_POST['component'])) {
    // TODO: do some input validation to make sure "action" and "component" is what we think it is
    include('components/'.$_POST['component'].'/actions/'.$sAction.'.inc.php');
}
else {
    // TODO: do some input validation to make sure $sAction is what we think it is
    include('includes/actions/'.$sAction.'.inc.php');
}
 
if (hasLoadUrl() || hasJavascript()) {
    printHtmlHeader();
    printLoadUrl();
    printJavascript();
    printHtmlFooter();
}
?>