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637 lines
21 KiB
637 lines
21 KiB
<?php // $Id: document.php 10147 2006-11-23 07:56:16Z elixir_inter $
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/*
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==============================================================================
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Dokeos - elearning and course management software
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Copyright (c) 2004-2005 Dokeos S.A.
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Copyright (c) 2003 Ghent University (UGent)
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Copyright (c) 2001 Universite catholique de Louvain (UCL)
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Copyright (c) various contributors
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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 address: Dokeos, 44 rue des palais, B-1030 Brussels, Belgium
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Mail: info@dokeos.com
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==============================================================================
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*/
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/**
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==============================================================================
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* Main script for the documents tool
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*
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* This script allows the user to manage files and directories on a remote http server.
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*
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* The user can : - navigate through files and directories.
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* - upload a file
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* - delete, copy a file or a directory
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* - edit properties & content (name, comments, html content)
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*
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* The script is organised in four sections.
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*
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* 1) Execute the command called by the user
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* Note: somme commands of this section are organised in two steps.
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* The script always begins with the second step,
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* so it allows to return more easily to the first step.
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*
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* Note (March 2004) some editing functions (renaming, commenting)
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* are moved to a separate page, edit_document.php. This is also
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* where xml and other stuff should be added.
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*
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* 2) Define the directory to display
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*
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* 3) Read files and directories from the directory defined in part 2
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* 4) Display all of that on an HTML page
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*
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* @todo eliminate code duplication between
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* document/document.php, scormdocument.php
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*
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* @package dokeos.document
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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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$langFile = "document";
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include("../inc/global.inc.php");
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$this_section=SECTION_COURSES;
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include('document.inc.php');
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api_protect_course_script();
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//session
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if(isset($_GET['id_session']))
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$_SESSION['id_session'] = $_GET['id_session'];
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$htmlHeadXtra[] =
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"<script type=\"text/javascript\">
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function confirmation (name)
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{
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if (confirm(\" ". get_lang("AreYouSureToDelete") ." \"+ name + \" ?\"))
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{return true;}
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else
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{return false;}
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}
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</script>";
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/*
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-----------------------------------------------------------
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Variables
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- some need defining before inclusion of libraries
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-----------------------------------------------------------
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*/
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//what's the current path?
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//we will verify this a bit further down
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if(isset($_GET['curdirpath']) && $_GET['curdirpath']!='')
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{
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$curdirpath = $_GET['curdirpath'];
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}
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elseif (isset($_POST['curdirpath']) && $_POST['curdirpath']!='')
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{
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$curdirpath = $_POST['curdirpath'];
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}
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else
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{
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$curdirpath = '/';
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}
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$curdirpathurl = urlencode($curdirpath);
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$course_dir = $_course['path']."/document";
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$sys_course_path = api_get_path(SYS_COURSE_PATH);
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$base_work_dir = $sys_course_path.$course_dir;
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$http_www = api_get_path('WEB_COURSE_PATH').$_course['path'].'/document';
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$dbl_click_id = 0; // used to avoid double-click
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$is_allowed_to_edit = api_is_allowed_to_edit();
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$group_member_with_upload_rights = false;
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//if the group id is set, we show them group documents
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if(isset($_SESSION['_gid']) && $_SESSION['_gid']!='')
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{
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//needed for group related stuff
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include_once(api_get_path(LIBRARY_PATH) . 'groupmanager.lib.php');
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//get group info
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$group_properties = GroupManager::get_group_properties($_SESSION['_gid']);
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$noPHP_SELF=true;
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//let's assume the user cannot upload files for the group
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$group_member_with_upload_rights = false;
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if($group_properties['doc_state']==2) //documents are private
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{
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if($is_allowed_to_edit || GroupManager :: is_user_in_group($_user['user_id'],$_SESSION['_gid'])) //only courseadmin or group members (members + tutors) allowed
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{
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$to_group_id = $_SESSION['_gid'];
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$req_gid = '&gidReq='.$_SESSION['_gid'];
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$interbreadcrumb[]= array ("url"=>"../group/group.php", "name"=> get_lang('Groups'));
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$interbreadcrumb[]= array ("url"=>"../group/group_space.php?gidReq=".$_SESSION['_gid'], "name"=> get_lang('GroupSpace'));
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//they are allowed to upload
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$group_member_with_upload_rights = true;
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}
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else
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{
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$to_group_id = 0;
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$req_gid = '';
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}
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}
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elseif($group_properties['doc_state']==1) //documents are public
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{
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$to_group_id = $_SESSION['_gid'];
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$req_gid = '&gidReq='.$_SESSION['_gid'];
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$interbreadcrumb[]= array ("url"=>"../group/group_space.php?gidReq=".$_SESSION['_gid'], "name"=> get_lang('GroupSpace'));
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//allowed to upload?
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if($is_allowed_to_edit || GroupManager::is_subscribed($_user['user_id'],$_SESSION['_gid'])) //only courseadmin or group members can upload
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{
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$group_member_with_upload_rights = true;
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}
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}
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else //documents not active for this group
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{
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$to_group_id = 0;
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$req_gid = '';
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}
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$_SESSION['group_member_with_upload_rights'] = $group_member_with_upload_rights;
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}
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else
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{
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$to_group_id = 0;
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$req_gid = '';
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}
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/*
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-----------------------------------------------------------
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Libraries
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-----------------------------------------------------------
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*/
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//the main_api.lib.php, database.lib.php and display.lib.php
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//libraries are included by default
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include_once(api_get_path(LIBRARY_PATH) . 'fileDisplay.lib.php');
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include_once(api_get_path(LIBRARY_PATH) . 'events.lib.inc.php');
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include_once(api_get_path(LIBRARY_PATH) . 'document.lib.php');
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include_once(api_get_path(LIBRARY_PATH) . 'tablesort.lib.php');
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include_once(api_get_path(LIBRARY_PATH) . 'fileUpload.lib.php');
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//-----------------------------------------------------------
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//check the path
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//if the path is not found (no document id), set the path to /
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if(!DocumentManager::get_document_id($_course,$curdirpath)){
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$curdirpath = '/';
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//urlencoded version
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$curdirpathurl = '%2F';
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}
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//if they are looking at group documents they can't see the root
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if($to_group_id!=0 && $curdirpath=='/')
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{
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$curdirpath = $group_properties['directory'];
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$curdirpathurl = urlencode($group_properties['directory']);
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}
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//-----------------------------------------------------------
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/*
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-----------------------------------------------------------
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Constants and variables
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-----------------------------------------------------------
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*/
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$course_quota = DocumentManager::get_course_quota();
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/*
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==============================================================================
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MAIN SECTION
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==============================================================================
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*/
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//-------------------------------------------------------------------//
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if ($_GET['action']=="download")
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{
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//check if the document is in the database
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if(!DocumentManager::get_document_id($_course,$_GET['id']))
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{
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//file not found!
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header("HTTP/1.0 404 Not Found");
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$error404 = '<!DOCTYPE HTML PUBLIC "-//IETF//DTD HTML 2.0//EN">';
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$error404 .= '<html><head>';
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$error404 .= '<title>404 Not Found</title>';
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$error404 .= '</head><body>';
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$error404 .= '<h1>Not Found</h1>';
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$error404 .= '<p>The requested URL was not found on this server.</p>';
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$error404 .= '<hr>';
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$error404 .= '</body></html>';
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echo($error404);
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exit;
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}
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// launch event
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event_download($_GET['id']);
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$doc_url=$_GET['id'];
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$full_file_name = $base_work_dir.$doc_url;
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DocumentManager::file_send_for_download($full_file_name,true);
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exit;
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}
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//-------------------------------------------------------------------//
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//download of an completed folder
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if($_GET['action']=="downloadfolder")
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{
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include('downloadfolder.inc.php');
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}
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//-------------------------------------------------------------------//
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// slideshow inititalisation
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$_SESSION["image_files_only"]="";
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$image_files_only="";
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/*
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-----------------------------------------------------------
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Header
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-----------------------------------------------------------
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*/
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$tool_name = get_lang("Doc"); // title of the page (should come from the language file)
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Display::display_header($tool_name,"Doc");
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$is_allowed_to_edit = api_is_allowed_to_edit();
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/*
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* Lib for event log, stats & tracking
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* plus record of the access
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*/
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event_access_tool(TOOL_DOCUMENT);
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/*
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==============================================================================
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DISPLAY
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==============================================================================
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*/
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if($to_group_id !=0) //add group name after for group documents
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{
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$add_group_to_title = ' ('.$group_properties['name'].')';
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}
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//api_display_tool_title($tool_name.$add_group_to_title);
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/*
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-----------------------------------------------------------
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Introduction section
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(editable by course admins)
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-----------------------------------------------------------
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*/
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Display::display_introduction_section(TOOL_DOCUMENT);
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/*============================================================================*/
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if($is_allowed_to_edit || $group_member_with_upload_rights) // TEACHER ONLY
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{
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/*======================================
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MOVE FILE OR DIRECTORY
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======================================*/
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if (isset($_GET['move']) && $_GET['move']!='')
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{
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if(DocumentManager::get_document_id($_course,$_GET['move']))
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{
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$folders = DocumentManager::get_all_document_folders($_course,$to_group_id,$is_allowed_to_edit || $group_member_with_upload_rights);
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Display::display_normal_message(build_move_to_selector($folders,$_GET['curdirpath'],$_GET['move'],$group_properties['directory']));
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}
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}
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if (isset($_POST['move_to']) && isset($_POST['move_file']))
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{
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include_once(api_get_path(LIBRARY_PATH) . 'fileManage.lib.php');
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//this is needed for the update_db_info function
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//$dbTable = $_course['dbNameGlu']."document";
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$dbTable = Database::get_course_table(DOCUMENT_TABLE);
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//security fix: make sure they can't move files that are not in the document table
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if(DocumentManager::get_document_id($_course,$_POST['move_file'])) {
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//Display::display_normal_message('We want to move '.$_POST['move_file'].' to '.$_POST['move_to']);
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if ( move($base_work_dir.$_POST['move_file'],$base_work_dir.$_POST['move_to']) )
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{
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update_db_info("update", $_POST['move_file'], $_POST['move_to']."/".basename($_POST['move_file']));
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//set the current path
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$curdirpath = $_POST['move_to'];
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$curdirpathurl = urlencode($_POST['move_to']);
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Display::display_normal_message(get_lang('DirMv'));
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}
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else
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{
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Display::display_error_message(get_lang('Impossible'));
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}
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}
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else
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{
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Display::display_error_message(get_lang('Impossible'));
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}
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}
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/*======================================
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DELETE FILE OR DIRECTORY
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======================================*/
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if ( isset($_GET['delete']) )
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{
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include_once(api_get_path(LIBRARY_PATH) . 'fileManage.lib.php');
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if(DocumentManager::delete_document($_course,$_GET['delete'],$base_work_dir))
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{
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Display::display_normal_message(get_lang('DocDeleted'));
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}
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else
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{
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Display::display_normal_message(get_lang('DocDeleteError'));
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}
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}
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if( isset($_POST['action']))
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{
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switch($_POST['action'])
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{
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case 'delete':
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foreach($_POST['path'] as $index => $path)
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{
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DocumentManager::delete_document($_course,$path,$base_work_dir);
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}
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Display::display_normal_message(get_lang('DocDeleted'));
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break;
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}
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}
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/*======================================
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CREATE DIRECTORY
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======================================*/
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//create directory with $_POST data
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if(isset($_POST['create_dir']) && $_POST['dirname']!='')
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{
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//needed for directory creation
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include_once(api_get_path(LIBRARY_PATH) . 'fileUpload.lib.php');
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$added_slash = ($curdirpath=='/')?'':'/';
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$dir_name = $curdirpath.$added_slash.replace_dangerous_char($_POST['dirname']);
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$created_dir = create_unexisting_directory($_course,$_user['user_id'],$to_group_id,$to_user_id,$base_work_dir,$dir_name,$_POST['dirname']);
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if($created_dir)
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{
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//Display::display_normal_message("<strong>".$created_dir."</strong> was created!");
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Display::display_normal_message('<span title="'.$created_dir.'">'.get_lang('DirCr').'</span>');
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//uncomment if you want to enter the created dir
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//$curdirpath = $created_dir;
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//$curdirpathurl = urlencode($curdirpath);
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}
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else
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{
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Display::display_error_message(get_lang('CannotCreateDir'));
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}
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}
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//show them the form for the directory name
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if(isset($_GET['createdir']))
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{
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//create the form that asks for the directory name
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$new_folder_text = '<form action="'.$_SERVER['PHP_SELF'].'" method="post">';
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$new_folder_text .= '<input type="hidden" name="curdirpath" value="'.$curdirpath.'" />';
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$new_folder_text .= get_lang('NewDir') .' ';
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$new_folder_text .= '<input type="text" name="dirname" />';
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$new_folder_text .= '<input type="submit" name="create_dir" value="'.get_lang('Ok').'" />';
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$new_folder_text .= '</form>';
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//show the form
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Display::display_normal_message($new_folder_text);
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}
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/*======================================
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VISIBILITY COMMANDS
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======================================*/
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if ((isset($_GET['set_invisible']) && !empty($_GET['set_invisible'])) || (isset($_GET['set_visible']) && !empty($_GET['set_visible'])) AND $_GET['set_visible']<>'*' AND $_GET['set_invisible']<>'*')
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{
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//make visible or invisible?
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if(isset($_GET['set_visible']))
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{
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$update_id = $_GET['set_visible'];
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$visibility_command = 'visible';
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}
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else
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{
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$update_id = $_GET['set_invisible'];
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$visibility_command = 'invisible';
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}
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//update item_property to change visibility
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if(api_item_property_update($_course, TOOL_DOCUMENT, $update_id, $visibility_command, $_user['user_id']))
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{
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Display::display_normal_message(get_lang("ViMod"));
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}
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else
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{
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Display::display_error_message(get_lang("ViModProb"));
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}
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}
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} // END is allowed to edit
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/*
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-----------------------------------------------------------
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GET ALL DOCUMENT DATA FOR CURDIRPATH
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-----------------------------------------------------------
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*/
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$docs_and_folders = DocumentManager::get_all_document_data($_course,$curdirpath,$to_group_id,NULL,$is_allowed_to_edit || $group_member_with_upload_rights);
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?>
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<div id="folderselector" style="float:left;margin-right:10px;margin-top:5px;">
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<?php
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$folders = DocumentManager::get_all_document_folders($_course,$to_group_id,$is_allowed_to_edit || $group_member_with_upload_rights);
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echo(build_directory_selector($folders,$curdirpath,$group_properties['directory']));
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?>
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</div>
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<?php
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echo "<div id=\"doc_links\">";
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/* GO TO PARENT DIRECTORY */
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if ($curdirpath!= '/'&& $curdirpath!=$group_properties['directory'])
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{
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?>
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<a href="<?php echo $_SERVER['PHP_SELF']; ?>?curdirpath=<?php echo urlencode((dirname($curdirpath)=='\\')?'/':dirname($curdirpath)) ?>">
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<img src="../img/parent.gif" border="0" align="absbottom" hspace="5" alt="" />
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<?php echo get_lang("Up"); ?></a>
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<?php
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}
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if ($is_allowed_to_edit || $group_member_with_upload_rights)
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{
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/* CREATE NEW DOCUMENT OR NEW DIRECTORY / GO TO UPLOAD / DOWNLOAD ZIPPED FOLDER */
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?>
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<!-- create new document or directory -->
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<a href="create_document.php?dir=<?php echo $curdirpathurl; ?>"><img src="../img/filenew.gif" border="0" alt="" title="<?php echo get_lang('CreateDoc'); ?>" /></a>
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<a href="create_document.php?dir=<?php echo $curdirpathurl; ?>"><?php echo get_lang("CreateDoc"); ?></a>
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<!-- file upload link -->
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<a href="upload.php?path=<?php echo $curdirpathurl.$req_gid; ?>"><img src="../img/submit_file.gif" border="0" title="<?php echo get_lang('UplUploadDocument'); ?>" alt="" /></a>
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<a href="upload.php?path=<?php echo $curdirpathurl.$req_gid; ?>"><?php echo get_lang('UplUploadDocument'); ?></a>
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<!-- create directory -->
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<a href="<?php echo $_SERVER['PHP_SELF']; ?>?curdirpath=<?php echo $curdirpathurl; ?>&createdir=1"><img src="../img/folder_new.gif" border="0" alt ="" /></a>
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<a href="<?php echo $_SERVER['PHP_SELF']; ?>?curdirpath=<?php echo $curdirpathurl; ?>&createdir=1"><?php echo get_lang("CreateDir"); ?></a>
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<?php
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}
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?>
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<!-- download zipped folder -->
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<a href="<?php echo $_SERVER['PHP_SELF']; ?>?action=downloadfolder&path=<?php echo $curdirpathurl; ?>"><img src="../img/zip_save.gif" border="0" title="<?php echo get_lang("Save"); ?> (ZIP)" alt="" /></a>
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<a href="<?php echo $_SERVER['PHP_SELF']; ?>?action=downloadfolder&path=<?php echo $curdirpathurl; ?>"><?php echo get_lang("Save"); ?> (ZIP)</a>
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<?php
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// Slideshow by Patrick Cool, May 2004
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include("document_slideshow.inc.php");
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// including the language file for the slideshow
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include(api_get_path(SYS_LANG_PATH).$languageInterface."/"."slideshow.inc.php");
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if ($image_present)
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{
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echo "<a href=\"slideshow.php?curdirpath=".$curdirpathurl."\"><img src=\"../img/images_gallery.gif\" border=\"0\" title=\"".get_lang('ViewSlideshow')."\"/> ". get_lang('ViewSlideshow') . "</a>";
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}
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echo "</div>";
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//==============================================================================
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if($docs_and_folders)
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{
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//echo('<pre>');
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//print_r($docs_and_folders);
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//echo('</pre>');
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//*************************************************************************************************
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//do we need the title field for the document name or not?
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//we get the setting here, so we only have to do it once
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$use_document_title = get_setting('use_document_title');
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//create a sortable table with our data
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$sortable_data = array();
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while (list ($key, $id) = each($docs_and_folders))
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{
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$row = array ();
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//if the item is invisible, wrap it in a span with class invisible
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$invisibility_span_open = ($id['visibility']==0)?'<span class="invisible">':'';
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$invisibility_span_close = ($id['visibility']==0)?'</span>':'';
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//size (or total size of a directory)
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$size = $id['filetype']=='folder' ? get_total_folder_size($id['path'],$is_allowed_to_edit) : $id[size];
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//get the title or the basename depending on what we're using
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if ($use_document_title=='true' AND $id['title']<>'')
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{
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$document_name=$id['title'];
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}
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else
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{
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$document_name=basename($id['path']);
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}
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//$row[] = $key; //testing
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//data for checkbox
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if (($is_allowed_to_edit || $group_member_with_upload_rights) AND count($docs_and_folders)>1)
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{
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$row[] = $id['path'];
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}
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//icons
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$row[]= build_document_icon_tag($id['filetype'],$id['path']);
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//document title with hyperlink
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$row[] = create_document_link($http_www,$document_name,$id['path'],$id['filetype'],$size,$id['visibility']).'<br />'.$invisibility_span_open.nl2br(htmlspecialchars($id['comment'])).$invisibility_span_close;
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//comments => display comment under the document name
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//$row[] = $invisibility_span_open.nl2br(htmlspecialchars($id['comment'])).$invisibility_span_close;
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$display_size = format_file_size($size);
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$row[] = '<span style="display:none;">'.$size.'</span>'.$invisibility_span_open.$display_size.$invisibility_span_close;
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//last edit date
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$display_date = format_date(strtotime($id['lastedit_date']));
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$row[] = '<span style="display:none;">'.$id['lastedit_date'].'</span>'.$invisibility_span_open.$display_date.$invisibility_span_close;
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//admins get an edit column
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if ($is_allowed_to_edit || $group_member_with_upload_rights)
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{
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$edit_icons = build_edit_icons($curdirpath,$id['filetype'],$id['path'],$id['visibility'],$key);
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$row[] = $edit_icons;
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}
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$sortable_data[] = $row;
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}
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//*******************************************************************************************
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}
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else
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{
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$sortable_data='';
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$table_footer='<div style="text-align:center;"><strong>'.get_lang('NoDocsInFolder').'</strong></div>';
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//echo('<p><strong>'.get_lang('NoDocsInFolder').'</strong></p>');
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}
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$table = new SortableTableFromArray($sortable_data,2,100);
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$query_vars['curdirpath'] = $curdirpath;
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if(isset($_SESSION['_gid']))
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{
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$query_vars['gidReq'] = $_SESSION['_gid'];
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}
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$table->set_additional_parameters($query_vars);
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$column = 0;
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if (($is_allowed_to_edit || $group_member_with_upload_rights) AND count($docs_and_folders)>1)
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{
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$table->set_header($column++,'',false);
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}
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$table->set_header($column++,get_lang('Type'));
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$table->set_header($column++,get_lang('Name'));
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//$column_header[] = array(get_lang('Comment'),true); => display comment under the document name
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$table->set_header($column++,get_lang('Size'));
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$table->set_header($column++,get_lang('Date'));
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//admins get an edit column
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if ($is_allowed_to_edit || $group_member_with_upload_rights)
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{
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$table->set_header($column++,'',false);
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}
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//actions on multiple selected documents
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//currently only delete action -> take only DELETE right into account
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if (count($docs_and_folders)>1)
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{
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if ($is_allowed_to_edit || $group_member_with_upload_rights)
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{
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$form_actions = array();
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$form_action['delete'] = get_lang('Delete');
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$table->set_form_actions($form_action,'path');
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}
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}
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$table->display();
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echo $table_footer;
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/*
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==============================================================================
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Quota section
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Proposal: perhaps move/add the quota display to another section, e.g. course info
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==============================================================================
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*/
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if ($is_allowed_to_edit) display_document_options();
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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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