Chamilo is a learning management system focused on ease of use and accessibility
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chamilo-lms/main/document/download_scorm.php

63 lines
1.7 KiB

<?php
/* For licensing terms, see /license.txt */
/**
* This file is responsible for passing requested documents to the browser.
*
* @package chamilo.document
*/
session_cache_limiter('none');
require_once __DIR__.'/../inc/global.inc.php';
$this_section = SECTION_COURSES;
// Protection
api_protect_course_script();
$_course = api_get_course_info();
if (!isset($_course)) {
api_not_allowed(true);
}
// If LP obj exists
if (isset($_SESSION['oLP'])) {
$obj = $_SESSION['oLP'];
} else {
api_not_allowed();
}
// If is visible for the current user
if (!learnpath::is_lp_visible_for_student($obj->get_id(), api_get_user_id())) {
api_not_allowed();
}
$doc_url = isset($_GET['doc_url']) ? $_GET['doc_url'] : null;
// Change the '&' that got rewritten to '///' by mod_rewrite back to '&'
$doc_url = str_replace('///', '&', $doc_url);
// Still a space present? it must be a '+' (that got replaced by mod_rewrite)
$doc_url = str_replace(' ', '+', $doc_url);
$doc_url = str_replace(array('../', '\\..', '\\0', '..\\'), array('', '', '', ''), $doc_url); //echo $doc_url;
if (strpos($doc_url, '../') || strpos($doc_url, '/..')) {
$doc_url = '';
}
$sys_course_path = api_get_path(SYS_COURSE_PATH).$_course['path'].'/scorm';
if (is_dir($sys_course_path.$doc_url)) {
api_not_allowed();
}
if (Security::check_abs_path($sys_course_path.$doc_url, $sys_course_path.'/')) {
$full_file_name = $sys_course_path.$doc_url;
// Launch event
Event::event_download($doc_url);
$fixLinks = api_get_configuration_value('lp_replace_http_to_https');
$result = DocumentManager::file_send_for_download($full_file_name, false, '', $fixLinks);
if ($result === false) {
api_not_allowed(true);
}
}
exit;