<?php // $Id: index.php 16620 2008-10-25 20:03:54Z yannoo $
/*
==============================================================================
Dokeos - elearning and course management software
Copyright (c) 2004-2008 Dokeos SPRL
Copyright (c) 2003 Ghent University (UGent)
For a full list of contributors, see "credits.txt".
The full license can be read in "license.txt".
This program is free software; you can redistribute it and/or
modify it under the terms of the GNU General Public License
as published by the Free Software Foundation; either version 2
of the License, or (at your option) any later version.
See the GNU General Public License for more details.
Contact: Dokeos, rue Notre Dame, 152, B-1140 Evere, Belgium, info@dokeos.com
==============================================================================
*/
/**
==============================================================================
* This is a learning path creation and player tool in Dokeos - previously learnpath_handler.php
*
* @author Patrick Cool
* @author Denes Nagy
* @author Roan Embrechts, refactoring and code cleaning
* @author Yannick Warnier <ywarnier@beeznest.org> - cleaning and update for new SCORM tool
* @package dokeos.learnpath
==============================================================================
*/
/*
==============================================================================
INIT SECTION
==============================================================================
*/
$this_section=SECTION_COURSES;
api_protect_course_script();
/*
-----------------------------------------------------------
Libraries
-----------------------------------------------------------
*/
//the main_api.lib.php, database.lib.php and display.lib.php
//libraries are included by default
include('learnpath_functions.inc.php');
//include('../resourcelinker/resourcelinker.inc.php');
include('resourcelinker.inc.php');
//rewrite the language file, sadly overwritten by resourcelinker.inc.php
$language_file = "learnpath";
/*
-----------------------------------------------------------
Constants and variables
-----------------------------------------------------------
*/
$is_allowed_to_edit = api_is_allowed_to_edit();
$tbl_lp = Database::get_course_table(TABLE_LP_MAIN);
$tbl_lp_item = Database::get_course_table(TABLE_LP_ITEM);
$tbl_lp_view = Database::get_course_table(TABLE_LP_VIEW);
$isStudentView = (int) $_REQUEST['isStudentView'];
$learnpath_id = (int) $_REQUEST['lp_id'];
$submit = $_POST['submit_button'];
/*
$chapter_id = $_GET['chapter_id'];
$title = $_POST['title'];
$description = $_POST['description'];
$Submititem = $_POST['Submititem'];
$action = $_REQUEST['action'];
$id = (int) $_REQUEST['id'];
$type = $_REQUEST['type'];
$direction = $_REQUEST['direction'];
$moduleid = $_REQUEST['moduleid'];
$prereq = $_REQUEST['prereq'];
$type = $_REQUEST['type'];
*/
/*
==============================================================================
MAIN CODE
==============================================================================
*/
// using the resource linker as a tool for adding resources to the learning path
if ($action=="add" and $type=="learnpathitem")
{
$htmlHeadXtra[] = "<script language='JavaScript' type='text/javascript'> window.location=\"../resourcelinker/resourcelinker.php?source_id=5&action=$action&learnpath_id=$learnpath_id&chapter_id=$chapter_id&originalresource=no\"; </script>";
}
if ( (! $is_allowed_to_edit) or ($isStudentView) )
{
error_log('New LP - User not authorized in lp_admin_view.php');
header('location:lp_controller.php?action=view&lp_id='.$learnpath_id);
}
//from here on, we are admin because of the previous condition, so don't check anymore
$sql_query = "SELECT * FROM $tbl_lp WHERE id = $learnpath_id";
$result=api_sql_query($sql_query);
$therow=Database::fetch_array($result);
//$admin_output = '';
/*
-----------------------------------------------------------
Course admin section
- all the functions not available for students - always available in this case (page only shown to admin)
-----------------------------------------------------------
*/
/*==================================================
SHOWING THE ADMIN TOOLS
==================================================*/
/*==================================================
prerequisites setting end
==================================================*/
if (isset($_SESSION['gradebook'])){
$gradebook= $_SESSION['gradebook'];
}
if (!empty($gradebook) && $gradebook=='view') {
$interbreadcrumb[]= array (
'url' => '../gradebook/'.$_SESSION['gradebook_dest'],
'name' => get_lang('Gradebook')
);
}
$interbreadcrumb[]= array ("url"=>"lp_controller.php?action=list", "name"=> get_lang("_learning_path"));
$interbreadcrumb[]= array ("url"=>api_get_self()."?action=admin_view&lp_id=$learnpath_id", "name" => stripslashes("{$therow['name']}"));
//Theme calls
$show_learn_path=true;
$lp_theme_css=$_SESSION['oLP']->get_theme();
Display::display_header(null,'Path');
//api_display_tool_title($therow['name']);
$suredel = trim(get_lang('AreYouSureToDelete'));
//$suredelstep = trim(get_lang('AreYouSureToDeleteSteps'));
?>
<script type='text/javascript'>
/* <![CDATA[ */
function stripslashes(str) {
str=str.replace(/\\'/g,'\'');
str=str.replace(/\\"/g,'"');
str=str.replace(/\\\\/g,'\\');
str=str.replace(/\\0/g,'\0');
return str;
}
function confirmation(name)
{
name=stripslashes(name);
if (confirm("<?php echo $suredel; ?> " + name + " ?"))
{
return true;
}
else
{
return false;
}
}
</script>
<?php
/*
-----------------------------------------------------------
DISPLAY SECTION
-----------------------------------------------------------
*/
switch($_GET['action'])
{
case 'edit_item':
if(isset($is_success) && $is_success === true)
{
Display::display_confirmation_message(get_lang("_learnpath_item_edited"));
}
else
{
echo $_SESSION['oLP']->display_edit_item($_GET['id']);
}
break;
case 'delete_item':
if(isset($is_success) && $is_success === true)
{
Display::display_confirmation_message(get_lang("_learnpath_item_deleted"));
}
break;
}
// POST action handling (uploading mp3, deleting mp3)
if (isset($_POST['save_audio']))
{
// deleting the audio fragments
foreach ($_POST as $key=>$value) {
if (substr($key,0,9) == 'removemp3') {
$lp_items_to_remove_audio[] = str_ireplace('removemp3','',$key);
// removing the audio from the learning path item
$tbl_lp_item = Database::get_course_table(TABLE_LP_ITEM);
$in = implode(',',$lp_items_to_remove_audio);
}
}
if (count($lp_items_to_remove_audio)>0) {
$sql = "UPDATE $tbl_lp_item SET audio = '' WHERE id IN (".$in.")";
$result = api_sql_query($sql, __FILE__, __LINE__);
}
// uploading the audio files
foreach ($_FILES as $key=>$value)
{
if (substr($key,0,7) == 'mp3file' AND !empty($_FILES[$key]['tmp_name']))
{
// the id of the learning path item
$lp_item_id = str_ireplace('mp3file','',$key);
// create the audio folder if it does not exist yet
global $_course;
$filepath = api_get_path('SYS_COURSE_PATH').$_course['path'].'/document/';
if(!is_dir($filepath.'audio'))
{
$perm = api_get_setting('permissions_for_new_directories');
$perm = octdec(!empty($perm)?$perm:'0770');
mkdir($filepath.'audio',$perm);
$audio_id=add_document($_course,'/audio','folder',0,'audio');
api_item_property_update($_course, TOOL_DOCUMENT, $audio_id, 'FolderCreated', api_get_user_id());
}
// check if file already exits into document/audio/
$file_name = $_FILES[$key]['name'];
$file_name=stripslashes($file_name);
//add extension to files without one (if possible)
$file_name=add_ext_on_mime($file_name,$_FILES[$key]['type']);
$clean_name = replace_dangerous_char($file_name);
$clean_name = replace_accents($clean_name);
//no "dangerous" files
$clean_name = disable_dangerous_file($clean_name);
$check_file_path = api_get_path('SYS_COURSE_PATH').$_course['path'].'/document/audio/'.$clean_name;
// if the file exists we generate a new name
if (file_exists($check_file_path)) {
$filename_components = explode('.',$clean_name);
// gettting the extension of the file
$file_extension = $filename_components[count($filename_components)-1];
// adding something random to prevent overwriting
$filename_components[count($filename_components)-1] = time();
// reconstructing the new filename
$clean_name = implode($filename_components) .'.'.$file_extension;
// using the new name in the $_FILES superglobal
$_FILES[$key]['name'] = $clean_name;
}
// upload the file in the documents tool
include_once(api_get_path(LIBRARY_PATH) . 'fileUpload.lib.php');
$file_path = handle_uploaded_document($_course, $_FILES[$key],api_get_path('SYS_COURSE_PATH').$_course['path'].'/document','/audio',api_get_user_id(),'','','','','',false);
// getting the filename only
$file_components = explode('/',$file_path);
$file = $file_components[count($file_components)-1];
// store the mp3 file in the lp_item table
$tbl_lp_item = Database::get_course_table(TABLE_LP_ITEM);
$sql_insert_audio = "UPDATE $tbl_lp_item SET audio = '".Database::escape_string($file)."' WHERE id = '".Database::escape_string($lp_item_id)."'";
api_sql_query($sql_insert_audio, __FILE__, __LINE__);
}
}
Display::display_confirmation_message(get_lang('ChangesStored'));
}
echo $_SESSION['oLP']->overview();
/*
==============================================================================
FOOTER
==============================================================================
*/
Display::display_footer();
?>