chamilo-lms2/main/upload/upload.php

<?php
/* For licensing terms, see /license.txt */
/**
 * Action controller for the upload process. The display scripts (web forms) redirect
 * the process here to do what needs to be done with each file.
 * @package chamilo.upload
 * @author Yannick Warnier <ywarnier@beeznest.org>
 */

require_once '../inc/global.inc.php';

// return to index if no tool is set
if (empty($_SESSION['my_tool'])) {
    header('location:index.php');
    exit;
}

// check access permissions (edit permission is needed to add a document or a LP)
$is_allowed_to_edit = api_is_allowed_to_edit();

if (!$is_allowed_to_edit) {
    api_not_allowed(true);
}

/**
 * Redirect to the correct script to handle this type of upload
 */
switch ($_SESSION['my_tool']) {
    case TOOL_LEARNPATH:
        require 'upload.scorm.php';
        break;
    //the following cases need to be distinguished later on
    case TOOL_DROPBOX:
    case TOOL_STUDENTPUBLICATION:
    case TOOL_DOCUMENT:
    default:
        require 'upload.document.php';
        break;
}