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