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<?php
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/*
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==============================================================================
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Dokeos - elearning and course management software
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Copyright (c) 2006 Dokeos S.A.
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Copyright (c) 2006 Ghent University (UGent)
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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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* This file contains additional dropbox functions. Initially there were some functions in the init files also but I have moved them over
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* to one file -- Patrick Cool <patrick.cool@UGent.be>, Ghent University
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*/
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/**
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* This function is a wrapper function for the multiple actions feature.
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*
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* @author Patrick Cool <patrick.cool@UGent.be>, Ghent University
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* @version march 2006
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*/
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function handle_multiple_actions()
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{
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global $_user, $is_courseAdmin, $is_courseTutor;
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// STEP 1: are we performing the actions on the received or on the sent files?
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if($_POST['action']=='delete_received' || $_POST['action']=='download_received')
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{
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$part = 'received';
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}
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elseif($_POST['action']=='delete_sent' || $_POST['action']=='download_sent')
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{
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$part = 'sent';
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}
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// STEP 2: at least one file has to be selected. If not we return an error message
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foreach ($_POST as $key=>$value)
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{
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if (strstr($value,$part.'_') AND $key!='view_received_category' AND $key!='view_sent_category')
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{
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$checked_files=true;
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$checked_file_ids[]=intval(substr($value,strrpos($value,'_')));
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}
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}
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$checked_file_ids = $_POST['id'];
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if (!is_array($checked_file_ids) || count($checked_file_ids)==0)
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{
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return get_lang('CheckAtLeastOneFile');
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}
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// STEP 3A: deleting
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if ($_POST['action']=='delete_received' || $_POST['action']=='delete_sent')
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{
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$dropboxfile=new Dropbox_Person( $_user['user_id'], $is_courseAdmin, $is_courseTutor);
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foreach ($checked_file_ids as $key=>$value)
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{
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if ($_GET['view']=='received' OR !$_GET['view'])
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{
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$dropboxfile->deleteReceivedWork($value);
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$message=get_lang('ReceivedFileDeleted');
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}
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if ($_GET['view']=='sent')
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{
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$dropboxfile->deleteSentWork($value);
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$message=get_lang('SentFileDeleted');
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}
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}
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return $message;
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}
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// STEP 3B: giving comment
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if ($_POST['actions']=='comment')
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{
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// This has not been implemented.
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// The idea was that it would be possible to write the same feedback for the selected documents.
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}
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// STEP 3C: moving
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if (strstr($_POST['actions'], 'move_'))
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{
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$target=str_replace('move_', '',$_POST['actions']);
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foreach ($checked_file_ids as $key=>$value)
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{
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store_move($value, $target, $part);
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}
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return get_lang('FilesMoved');
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}
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// STEP 3D: downloading
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if ($_POST['action']=='download_sent' || $_POST['action']=='download_received')
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{
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zip_download($checked_file_ids);
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}
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}
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/**
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* This function deletes a dropbox category
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*
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* @todo give the user the possibility what needs to be done with the files in this category: move them to the root, download them as a zip, delete them
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*
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* @author Patrick Cool <patrick.cool@UGent.be>, Ghent University
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* @version march 2006
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*/
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function delete_category($action, $id)
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{
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global $dropbox_cnf;
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global $_user, $is_courseAdmin, $is_courseTutor;
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// an additional check that might not be necessary
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if ($action=='deletereceivedcategory')
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{
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$sentreceived='received';
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$entries_table=$dropbox_cnf['tbl_post'];
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$id_field='file_id';
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}
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elseif ($action=='deletesentcategory')
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{
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$sentreceived='sent';
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$entries_table=$dropbox_cnf['tbl_file'];
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$id_field='id';
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}
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else
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{
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return get_lang('Error');
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}
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// step 1: delete the category
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$sql="DELETE FROM ".$dropbox_cnf['tbl_category']." WHERE cat_id='".Database::escape_string($id)."' AND $sentreceived='1'";
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$result=api_sql_query($sql);
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// step 2: delete all the documents in this category
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$sql="SELECT * FROM ".$entries_table." WHERE cat_id='".Database::escape_string($id)."'";
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$result=api_sql_query($sql);
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while ($row=mysql_fetch_array($result))
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{
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$dropboxfile=new Dropbox_Person( $_user['user_id'], $is_courseAdmin, $is_courseTutor);
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if ($action=='deletereceivedcategory')
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{
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$dropboxfile->deleteReceivedWork($row[$id_field]);
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}
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if ($action=='deletesentcategory')
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{
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$dropboxfile->deleteSentWork($row[$id_field]);
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}
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}
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}
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/**
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* Displays the form to move one individual file to a category
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*
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* @return html code of the form that appears in a dokeos message box.
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*
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* @author Patrick Cool <patrick.cool@UGent.be>, Ghent University
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* @version march 2006
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*/
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function display_move_form($part, $id, $target=array())
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{
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$message=get_lang('MoveFileTo');
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$message.='<form name="form1" method="post" action="'.api_get_self().'?view_received_category='.$_GET['view_received_category'].'&view_sent_category='.$_GET['view_sent_category'].'&view='.$_GET['view'].'">';
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$message.='<input type="hidden" name="id" value="'.$id.'">';
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$message.='<input type="hidden" name="part" value="'.$part.'">';
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$message.='<select name="move_target">';
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$message.='<option value="0">'.get_lang('Root').'</option>';
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foreach ($target as $key=>$category)
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{
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$message.='<option value="'.$category['cat_id'].'">'.$category['cat_name'].'</option>';
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}
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$message.= '</select>';
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$message.='<input type="submit" name="do_move" value="'.get_lang('Ok').'">';
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$message.='</form>';
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Display :: display_normal_message($message,false);
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}
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/**
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* This function moves a file to a different category
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*
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* @param $id the id of the file we are moving
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* @param $target the id of the folder we are moving to
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* @param $part are we moving a received file or a sent file?
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*
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* @return language string
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*
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* @author Patrick Cool <patrick.cool@UGent.be>, Ghent University
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* @version march 2006
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*/
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function store_move($id, $target, $part)
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{
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global $_user;
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global $dropbox_cnf;
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if ((isset($id) AND $id<>'') AND (isset($target) AND $target<>'') AND (isset($part) AND $part<>''))
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{
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if ($part=='received')
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{
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$sql="UPDATE ".$dropbox_cnf["tbl_post"]." SET cat_id='".Database::escape_string($target)."'
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WHERE dest_user_id='".Database::escape_string($_user['user_id'])."'
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AND file_id='".Database::escape_string($id)."'
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";
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api_sql_query($sql,__FILE__,__LINE__);
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$return_message=get_lang('ReceivedFileMoved');
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}
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if ($part=='sent')
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{
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$sql="UPDATE ".$dropbox_cnf["tbl_file"]." SET cat_id='".Database::escape_string($target)."'
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WHERE uploader_id='".Database::escape_string($_user['user_id'])."'
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AND id='".Database::escape_string($id)."'
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";
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api_sql_query($sql,__FILE__,__LINE__);
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$return_message=get_lang('SentFileMoved');
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}
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}
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else
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{
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$return_message=get_lang('NotMovedError');
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}
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return $return_message;
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}
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/**
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* This functions displays all teh possible actions that can be performed on multiple files. This is the dropdown list that
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* appears below the sortable table of the sent / or received files.
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*
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* @return html value for the dropdown list
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*
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* @author Patrick Cool <patrick.cool@UGent.be>, Ghent University
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* @version march 2006
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*/
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function display_action_options($part, $categories, $current_category=0)
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{
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echo '<select name="actions">';
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echo '<option value="download">'.get_lang('Download').'</option>';
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echo '<option value="delete">'.get_lang('Delete').'</option>';
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if(is_array($categories))
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{
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echo '<optgroup label="'.get_lang('MoveTo').'">';
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if ($current_category<>0)
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{
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echo '<option value="move_0">'.get_lang('Root').'</a>';
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}
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foreach ($categories as $key=>$value)
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{
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if( $current_category<>$value['cat_id'])
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{
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echo '<option value="move_'.$value['cat_id'].'">'.$value['cat_name'].'</option>';
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}
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}
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echo '</optgroup>';
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}
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echo '</select>';
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echo '<input type="submit" name="do_actions_'.$part.'" value="'.get_lang('Ok').'" />';
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}
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/**
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* this function returns the html code that displays the checkboxes next to the files so that
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* multiple actions on one file are possible.
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*
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* @param $id the unique id of the file
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* @param $part are we dealing with a sent or with a received file?
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*
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* @return html code
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*
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* @author Patrick Cool <patrick.cool@UGent.be>, Ghent University
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* @version march 2006
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*/
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function display_file_checkbox($id, $part)
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{
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if (isset($_GET['selectall']))
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{
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$checked='checked';
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}
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$return_value='<input type="checkbox" name="'.$part.'_'.$id.'" value="'.$id.'" '.$checked.' />';
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return $return_value;
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}
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/**
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* This function retrieves all the dropbox categories and returns them as an array
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*
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* @param $filter default '', when we need only the categories of the sent or the received part.
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*
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* @return array
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*
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* @author Patrick Cool <patrick.cool@UGent.be>, Ghent University
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* @version march 2006
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*/
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function get_dropbox_categories($filter='')
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{
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global $_user;
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global $dropbox_cnf;
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echo '<h1>'.$filter.'</h1>';
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$return_array=array();
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$sql="SELECT * FROM ".$dropbox_cnf['tbl_category']." WHERE user_id='".$_user['user_id']."'";
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$result=api_sql_query($sql);
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while ($row=mysql_fetch_array($result))
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{
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if(($filter=='sent' AND $row['sent']==1) OR ($filter=='received' AND $row['received']==1) OR $filter=='')
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{
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$return_array[$row['cat_id']]=$row;
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}
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}
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return $return_array;
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}
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/**
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* This functions stores a new dropboxcategory
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*
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* @var it might not seem very elegant if you create a category in sent and in received with the same name that you get two entries in the
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* dropbox_category table but it is the easiest solution. You get
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* cat_name | received | sent | user_id
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* test | 1 | 0 | 237
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* test | 0 | 1 | 237
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* more elegant would be
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* test | 1 | 1 | 237
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*
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* @author Patrick Cool <patrick.cool@UGent.be>, Ghent University
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* @version march 2006
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*/
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function store_addcategory()
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{
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global $_user;
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global $dropbox_cnf;
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// check if the target is valid
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if ($_POST['target']=='sent')
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{
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$sent=1;
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$received=0;
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}
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elseif ($_POST['target']=='received')
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{
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$sent=0;
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$received=1;
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}
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else
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{
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return get_lang('Error');
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}
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// check if the category name is valid
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if ($_POST['category_name']=='')
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{
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return get_lang('ErrorPleaseGiveCategoryName');
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}
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if (!$_POST['edit_id'])
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{
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// step 3a, we check if the category doesn't already exist
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$sql="SELECT * FROM ".$dropbox_cnf['tbl_category']." WHERE user_id='".$_user['user_id']."' AND cat_name='".Database::escape_string($_POST['category_name'])."' AND received='".$received."' AND sent='".$sent."'";
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$result=api_sql_query($sql);
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// step 3b, we add the category if it does not exist yet.
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if (mysql_num_rows($result)==0)
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{
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$sql="INSERT INTO ".$dropbox_cnf['tbl_category']." (cat_name, received, sent, user_id)
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VALUES ('".Database::escape_string($_POST['category_name'])."', '".Database::escape_string($received)."', '".Database::escape_string($sent)."', '".Database::escape_string($_user['user_id'])."')";
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api_sql_query($sql);
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return get_lang('CategoryStored');
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}
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else
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{
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return get_lang('CategoryAlreadyExistsEditIt');
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}
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}
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else
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{
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$sql="UPDATE ".$dropbox_cnf['tbl_category']." SET cat_name='".Database::escape_string($_POST['category_name'])."', received='".Database::escape_string($received)."' , sent='".Database::escape_string($sent)."'
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WHERE user_id='".Database::escape_string($_user['user_id'])."'
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AND cat_id='".Database::escape_string($_POST['edit_id'])."'";
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api_sql_query($sql);
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return get_lang('CategoryModified');
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}
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}
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/**
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* This function displays the form to add a new category.
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*
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* @param $category_name this parameter is the name of the category (used when no section is selected)
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* @param $id this is the id of the category we are editing.
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*
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* @author Patrick Cool <patrick.cool@UGent.be>, Ghent University
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* @version march 2006
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*/
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function display_addcategory_form($category_name='', $id='')
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{
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global $dropbox_cnf;
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$title=get_lang('AddNewCategory');
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if (isset($id) AND $id<>'')
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{
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// retrieve the category we are editing
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$sql="SELECT * FROM ".$dropbox_cnf['tbl_category']." WHERE cat_id='".Database::escape_string($id)."'";
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$result=api_sql_query($sql);
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$row=mysql_fetch_array($result);
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if ($category_name=='') // after an edit with an error we do not want to return to the original name but the name we already modified. (happens when createinrecievedfiles AND createinsentfiles are not checked)
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{
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$category_name=$row['cat_name'];
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}
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if ($row['received']=='1')
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{
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$target='received';
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}
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if ($row['sent']=='1')
|
|
|
{
|
|
|
$target='sent';
|
|
|
}
|
|
|
$title=get_lang('EditCategory');
|
|
|
|
|
|
}
|
|
|
|
|
|
if ($_GET['action']=='addreceivedcategory')
|
|
|
{
|
|
|
$target='received';
|
|
|
}
|
|
|
if ($_GET['action']=='addsentcategory')
|
|
|
{
|
|
|
$target='sent';
|
|
|
}
|
|
|
|
|
|
|
|
|
echo "<form name=\"add_new_category\" method=\"post\" action=\"".api_get_self()."?view=".$_GET['view']."\">\n";
|
|
|
echo '<strong>'.$title.'</strong>';
|
|
|
if (isset($id) AND $id<>'')
|
|
|
{
|
|
|
echo '<input name="edit_id" type="hidden" value="'.$id.'">';
|
|
|
}
|
|
|
echo '<input name="target" type="hidden" value="'.$target.'">';
|
|
|
echo "<table border=\"0\">\n";
|
|
|
echo "\t<tr>\n";
|
|
|
echo "\t<td>\n";
|
|
|
echo get_lang('CategoryName').': ';
|
|
|
echo "\t</td>\n";
|
|
|
echo "\t<td>\n";
|
|
|
echo "<input type=\"text\" name=\"category_name\" value=\"".$category_name."\" />";
|
|
|
echo "\t</td>\n";
|
|
|
echo "\t</tr>\n";
|
|
|
echo "\t<tr>\n";
|
|
|
echo "\t<td valign=\"top\">\n";
|
|
|
echo "\t</td>\n";
|
|
|
echo "\t<td>\n";
|
|
|
echo "<input type=\"submit\" name=\"StoreCategory\" value=\"".get_lang('Ok')."\">";
|
|
|
echo "\t</td>\n";
|
|
|
echo "\t</tr>\n";
|
|
|
echo "</table>\n";
|
|
|
echo "</form>";
|
|
|
}
|
|
|
|
|
|
/**
|
|
|
* this function displays the form to upload a new item to the dropbox.
|
|
|
*
|
|
|
* @author Patrick Cool <patrick.cool@UGent.be>, Ghent University
|
|
|
* @version march 2006
|
|
|
*/
|
|
|
function display_add_form()
|
|
|
{
|
|
|
global $_user;
|
|
|
global $is_courseAdmin;
|
|
|
global $is_courseTutor;
|
|
|
global $course_info; // this
|
|
|
|
|
|
$token = Security::get_token();
|
|
|
$dropbox_person = new Dropbox_Person( $_user['user_id'], $is_courseAdmin, $is_courseTutor);
|
|
|
?>
|
|
|
<form method="post" action="index.php?view_received_category=<?php echo $_GET['view_received_category']; ?>&view_sent_category=<?php echo $_GET['view_sent_category']; ?>&view=<?php echo $_GET['view']; ?>&<?php echo "&origin=$origin"; ?>" enctype="multipart/form-data" onsubmit="return checkForm(this)">
|
|
|
<table border="0">
|
|
|
<tr>
|
|
|
<td align="right">
|
|
|
<?php echo dropbox_lang("uploadFile")?>:
|
|
|
</td>
|
|
|
<td>
|
|
|
<input type="hidden" name="MAX_FILE_SIZE" value='<?php echo dropbox_cnf("maxFilesize")?>' />
|
|
|
<input type="file" name="file" size="20" <?php if (dropbox_cnf("allowOverwrite")) echo 'onChange="checkfile(this.value)"'; ?> />
|
|
|
<input type="hidden" name="dropbox_unid" value="<?php echo $dropbox_unid?>" />
|
|
|
<input type="hidden" name="sec_token" value="<?php echo $token?>" />
|
|
|
<?php
|
|
|
if ($origin=='learnpath')
|
|
|
{
|
|
|
echo "<input type='hidden' name='origin' value='learnpath' />";
|
|
|
}
|
|
|
?>
|
|
|
</td>
|
|
|
</tr>
|
|
|
<?php
|
|
|
if (dropbox_cnf("allowOverwrite"))
|
|
|
{
|
|
|
?>
|
|
|
<tr id="overwrite" style="display: none">
|
|
|
<td valign="top" align="right">
|
|
|
</td>
|
|
|
<td>
|
|
|
<input type="checkbox" name="cb_overwrite" id="cb_overwrite" value="true" /><?php echo dropbox_lang("overwriteFile")?>
|
|
|
</td>
|
|
|
</tr>
|
|
|
<?php
|
|
|
}
|
|
|
?>
|
|
|
<tr>
|
|
|
<td valign="top" align="left">
|
|
|
<?php echo dropbox_lang("description")?>:
|
|
|
</td>
|
|
|
<td>
|
|
|
<textarea name="description" cols="24" rows="2" style="width: 350px;"></textarea>
|
|
|
</td>
|
|
|
</tr>
|
|
|
<tr>
|
|
|
<td valign="top" align="left">
|
|
|
<?php echo dropbox_lang("sendTo")?>:
|
|
|
</td>
|
|
|
<td valign="top" align="left">
|
|
|
|
|
|
<?php
|
|
|
|
|
|
//list of all users in this course and all virtual courses combined with it
|
|
|
if(isset($_SESSION['id_session'])){
|
|
|
$complete_user_list_for_dropbox = CourseManager :: get_user_list_from_course_code($course_info['code'],true,$_SESSION['id_session']);
|
|
|
$complete_user_list2 = CourseManager :: get_coach_list_from_course_code($course_info['code'],$_SESSION['id_session']);
|
|
|
$complete_user_list_for_dropbox = array_merge($complete_user_list_for_dropbox,$complete_user_list2);
|
|
|
}
|
|
|
else{
|
|
|
$complete_user_list_for_dropbox = CourseManager :: get_user_list_from_course_code($course_info['code']);
|
|
|
}
|
|
|
|
|
|
foreach ($complete_user_list_for_dropbox as $k => $e)
|
|
|
$complete_user_list_for_dropbox[$k] = $e +
|
|
|
array('lastcommafirst' => $e['lastname'] . ', ' . $e['firstname']);
|
|
|
|
|
|
$complete_user_list_for_dropbox = TableSort::sort_table($complete_user_list_for_dropbox, 'lastcommafirst');
|
|
|
|
|
|
?>
|
|
|
|
|
|
<select name="recipients[]" size="
|
|
|
<?php
|
|
|
if ( $dropbox_person -> isCourseTutor || $dropbox_person -> isCourseAdmin)
|
|
|
{
|
|
|
echo 10;
|
|
|
}
|
|
|
else
|
|
|
{
|
|
|
echo 6;
|
|
|
}
|
|
|
|
|
|
|
|
|
?>" multiple style="width: 350px;">
|
|
|
<?php
|
|
|
|
|
|
/*
|
|
|
Create the options inside the select box:
|
|
|
List all selected users their user id as value and a name string as display
|
|
|
*/
|
|
|
foreach ($complete_user_list_for_dropbox as $current_user)
|
|
|
{
|
|
|
if ( ($dropbox_person -> isCourseTutor
|
|
|
|| $dropbox_person -> isCourseAdmin
|
|
|
|| dropbox_cnf("allowStudentToStudent") // RH: also if option is set
|
|
|
|| $current_user['status']!=5 // always allow teachers
|
|
|
|| $current_user['tutor_id']==1 // always allow tutors
|
|
|
) && $current_user['user_id'] != $_user['user_id'] ) // don't include yourself
|
|
|
{
|
|
|
$full_name = $current_user['lastcommafirst'];
|
|
|
echo '<option value="user_' . $current_user['user_id'] . '">' . $full_name . '</option>';
|
|
|
}
|
|
|
}
|
|
|
|
|
|
/*
|
|
|
* Show groups
|
|
|
*/
|
|
|
if ( ($dropbox_person -> isCourseTutor || $dropbox_person -> isCourseAdmin)
|
|
|
&& dropbox_cnf("allowGroup") || dropbox_cnf("allowStudentToStudent"))
|
|
|
{
|
|
|
$complete_group_list_for_dropbox = GroupManager::get_group_list(null,dropbox_cnf("courseId"));
|
|
|
|
|
|
if (count($complete_group_list_for_dropbox) > 0)
|
|
|
{
|
|
|
foreach ($complete_group_list_for_dropbox as $current_group)
|
|
|
{
|
|
|
if ($current_group['number_of_members'] > 0)
|
|
|
{
|
|
|
echo '<option value="group_'.$current_group['id'].'">G: '.$current_group['name'].' - '.$current_group['number_of_members'].' '.$langUsers.'</option>';
|
|
|
}
|
|
|
}
|
|
|
}
|
|
|
}
|
|
|
|
|
|
if ( ($dropbox_person -> isCourseTutor || $dropbox_person -> isCourseAdmin) && dropbox_cnf("allowMailing")) // RH: Mailing starting point
|
|
|
{
|
|
|
// echo '<option value="mailing">'.dropbox_lang("mailingInSelect").'</option>';
|
|
|
}
|
|
|
|
|
|
if ( dropbox_cnf("allowJustUpload")) // RH
|
|
|
{
|
|
|
//echo '<option value="upload">'.dropbox_lang("justUploadInSelect").'</option>';
|
|
|
echo '<option value="user_'.$_user['user_id'].'">'.dropbox_lang("justUploadInSelect").'</option>';
|
|
|
}
|
|
|
|
|
|
echo "</select>",
|
|
|
"</td></tr>",
|
|
|
"<tr><td></td>",
|
|
|
"<td><input type=\"Submit\" name=\"submitWork\" value=\"".dropbox_lang("ok", "noDLTT")."\" />",
|
|
|
"</td></tr>",
|
|
|
"</table>",
|
|
|
"</form>";
|
|
|
}
|
|
|
|
|
|
/**
|
|
|
* returns username or false if user isn't registered anymore
|
|
|
* @todo check if this function is still necessary. There might be a library function for this.
|
|
|
*/
|
|
|
function getUserNameFromId ( $id) // RH: Mailing: return 'Mailing ' + id
|
|
|
{
|
|
|
$mailingId = $id - dropbox_cnf("mailingIdBase");
|
|
|
if ( $mailingId > 0)
|
|
|
{
|
|
|
return dropbox_lang("mailingAsUsername", "noDLTT") . $mailingId;
|
|
|
}
|
|
|
|
|
|
$sql = "SELECT CONCAT(lastname,' ', firstname) AS name
|
|
|
FROM " . dropbox_cnf("tbl_user") . "
|
|
|
WHERE user_id='" . addslashes( $id) . "'";
|
|
|
$result = api_sql_query($sql,__FILE__,__LINE__);
|
|
|
$res = mysql_fetch_array( $result);
|
|
|
|
|
|
if ( $res == FALSE) return FALSE;
|
|
|
return stripslashes( $res["name"]);
|
|
|
}
|
|
|
|
|
|
/**
|
|
|
* returns loginname or false if user isn't registered anymore
|
|
|
* @todo check if this function is still necessary. There might be a library function for this.
|
|
|
*/
|
|
|
function getLoginFromId ( $id)
|
|
|
{
|
|
|
$sql = "SELECT username
|
|
|
FROM " . dropbox_cnf("tbl_user") . "
|
|
|
WHERE user_id='" . addslashes( $id) . "'";
|
|
|
$result =api_sql_query($sql,__FILE__,__LINE__);
|
|
|
$res = mysql_fetch_array( $result);
|
|
|
if ( $res == FALSE) return FALSE;
|
|
|
return stripslashes( $res["username"]);
|
|
|
}
|
|
|
|
|
|
/**
|
|
|
* @return boolean indicating if user with user_id=$user_id is a course member
|
|
|
* @todo eliminate global
|
|
|
* @todo check if this function is still necessary. There might be a library function for this.
|
|
|
*/
|
|
|
function isCourseMember( $user_id)
|
|
|
{
|
|
|
global $_course;
|
|
|
$course_code = $_course['sysCode'];
|
|
|
$is_course_member = CourseManager::is_user_subscribed_in_course($user_id, $course_code,true);
|
|
|
return $is_course_member;
|
|
|
}
|
|
|
|
|
|
/**
|
|
|
* Checks if there are files in the dropbox_file table that aren't used anymore in dropbox_person table.
|
|
|
* If there are, all entries concerning the file are deleted from the db + the file is deleted from the server
|
|
|
*/
|
|
|
function removeUnusedFiles( )
|
|
|
{
|
|
|
// select all files that aren't referenced anymore
|
|
|
$sql = "SELECT DISTINCT f.id, f.filename
|
|
|
FROM " . dropbox_cnf("tbl_file") . " f
|
|
|
LEFT JOIN " . dropbox_cnf("tbl_person") . " p ON f.id = p.file_id
|
|
|
WHERE p.user_id IS NULL";
|
|
|
$result = api_sql_query($sql,__FILE__,__LINE__);
|
|
|
while ( $res = mysql_fetch_array( $result))
|
|
|
{
|
|
|
//delete the selected files from the post and file tables
|
|
|
$sql = "DELETE FROM " . dropbox_cnf("tbl_post") . " WHERE file_id='" . $res['id'] . "'";
|
|
|
$result1 = api_sql_query($sql,__FILE__,__LINE__);
|
|
|
$sql = "DELETE FROM " . dropbox_cnf("tbl_file") . " WHERE id='" . $res['id'] . "'";
|
|
|
$result1 = api_sql_query($sql,__FILE__,__LINE__);
|
|
|
|
|
|
//delete file from server
|
|
|
@unlink( dropbox_cnf("sysPath") . "/" . $res["filename"]);
|
|
|
}
|
|
|
}
|
|
|
|
|
|
/**
|
|
|
* RH: Mailing (2 new functions)
|
|
|
*
|
|
|
* Mailing zip-file is posted to (dest_user_id = ) mailing pseudo_id
|
|
|
* and is only visible to its uploader (user_id).
|
|
|
*
|
|
|
* Mailing content files have uploader_id == mailing pseudo_id, a normal recipient,
|
|
|
* and are visible initially to recipient and pseudo_id.
|
|
|
*
|
|
|
* @author Ren<EFBFBD> Haentjens, Ghent University
|
|
|
*
|
|
|
* @todo check if this function is still necessary.
|
|
|
*/
|
|
|
function getUserOwningThisMailing($mailingPseudoId, $owner = 0, $or_die = '')
|
|
|
{
|
|
|
$sql = "SELECT f.uploader_id
|
|
|
FROM " . dropbox_cnf("tbl_file") . " f
|
|
|
LEFT JOIN " . dropbox_cnf("tbl_post") . " p ON f.id = p.file_id
|
|
|
WHERE p.dest_user_id = '" . $mailingPseudoId . "'";
|
|
|
$result = api_sql_query($sql,__FILE__,__LINE__);
|
|
|
|
|
|
if (!($res = mysql_fetch_array($result)))
|
|
|
die(dropbox_lang("generalError")." (code 901)");
|
|
|
|
|
|
if ($owner == 0) return $res['uploader_id'];
|
|
|
|
|
|
if ($res['uploader_id'] == $owner) return TRUE;
|
|
|
|
|
|
die(dropbox_lang("generalError")." (code ".$or_die.")");
|
|
|
}
|
|
|
/**
|
|
|
* @author Ren<EFBFBD> Haentjens, Ghent University
|
|
|
* @todo check if this function is still necessary.
|
|
|
*/
|
|
|
function removeMoreIfMailing($file_id)
|
|
|
{
|
|
|
// when deleting a mailing zip-file (posted to mailingPseudoId):
|
|
|
// 1. the detail window is no longer reachable, so
|
|
|
// for all content files, delete mailingPseudoId from person-table
|
|
|
// 2. finding the owner (getUserOwningThisMailing) is no longer possible, so
|
|
|
// for all content files, replace mailingPseudoId by owner as uploader
|
|
|
|
|
|
$sql = "SELECT p.dest_user_id
|
|
|
FROM " . dropbox_cnf("tbl_post") . " p
|
|
|
WHERE p.file_id = '" . $file_id . "'";
|
|
|
$result = api_sql_query($sql,__FILE__,__LINE__);
|
|
|
|
|
|
if ( $res = mysql_fetch_array( $result))
|
|
|
{
|
|
|
$mailingPseudoId = $res['dest_user_id'];
|
|
|
if ( $mailingPseudoId > dropbox_cnf("mailingIdBase"))
|
|
|
{
|
|
|
$sql = "DELETE FROM " . dropbox_cnf("tbl_person") . " WHERE user_id='" . $mailingPseudoId . "'";
|
|
|
$result1 = api_sql_query($sql,__FILE__,__LINE__);
|
|
|
|
|
|
$sql = "UPDATE " . dropbox_cnf("tbl_file") .
|
|
|
" SET uploader_id='" . api_get_user_id() . "' WHERE uploader_id='" . $mailingPseudoId . "'";
|
|
|
$result1 = api_sql_query($sql,__FILE__,__LINE__);
|
|
|
}
|
|
|
}
|
|
|
}
|
|
|
|
|
|
/**
|
|
|
* The dropbox has a deviant naming scheme for language files so it needs an additional language function
|
|
|
*
|
|
|
* @todo check if this function is still necessary.
|
|
|
*
|
|
|
* @author Ren<EFBFBD> Haentjens, Ghent University
|
|
|
*/
|
|
|
function dropbox_lang($variable, $notrans = 'DLTT')
|
|
|
{
|
|
|
return (api_get_setting('server_type') == 'test' ?
|
|
|
get_lang('dropbox_lang["'.$variable.'"]', $notrans) :
|
|
|
str_replace("\\'", "'", $GLOBALS['dropbox_lang'][$variable]));
|
|
|
}
|
|
|
/**
|
|
|
* Function that finds a given config setting
|
|
|
*
|
|
|
* @author Ren<EFBFBD> Haentjens, Ghent University
|
|
|
*/
|
|
|
function dropbox_cnf($variable)
|
|
|
{
|
|
|
return $GLOBALS['dropbox_cnf'][$variable];
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
/**
|
|
|
*
|
|
|
*/
|
|
|
function store_add_dropbox()
|
|
|
{
|
|
|
global $dropbox_cnf;
|
|
|
global $_user;
|
|
|
global $_course;
|
|
|
require_once(api_get_path(LIBRARY_PATH) . "/fileUpload.lib.php");
|
|
|
|
|
|
// ----------------------------------------------------------
|
|
|
// Validating the form data
|
|
|
// ----------------------------------------------------------
|
|
|
|
|
|
// the author is
|
|
|
/*
|
|
|
if (!isset( $_POST['authors']))
|
|
|
{
|
|
|
return get_lang('AuthorFieldCannotBeEmpty');
|
|
|
}
|
|
|
*/
|
|
|
|
|
|
// there are no recipients selected
|
|
|
if ( !isset( $_POST['recipients']) || count( $_POST['recipients']) <= 0)
|
|
|
{
|
|
|
return get_lang('YouMustSelectAtLeastOneDestinee');
|
|
|
}
|
|
|
// Check if all the recipients are valid
|
|
|
else
|
|
|
{
|
|
|
$thisIsAMailing = FALSE; // RH: Mailing selected as destination
|
|
|
$thisIsJustUpload = FALSE; // RH
|
|
|
foreach( $_POST['recipients'] as $rec)
|
|
|
{
|
|
|
if ( $rec == 'mailing')
|
|
|
{
|
|
|
$thisIsAMailing = TRUE;
|
|
|
}
|
|
|
elseif ( $rec == 'upload')
|
|
|
{
|
|
|
$thisIsJustUpload = TRUE;
|
|
|
}
|
|
|
elseif (strpos($rec, 'user_') === 0 && !isCourseMember(substr($rec, strlen('user_') ) ))
|
|
|
{
|
|
|
return get_lang('InvalideUserDetected');
|
|
|
}
|
|
|
elseif (strpos($rec, 'group_') !== 0 && strpos($rec, 'user_') !== 0)
|
|
|
{
|
|
|
return get_lang('InvalideGroupDetected');
|
|
|
}
|
|
|
}
|
|
|
}
|
|
|
|
|
|
// we are doing a mailing but an additional recipient is selected
|
|
|
if ( $thisIsAMailing && ( count($_POST['recipients']) != 1))
|
|
|
{
|
|
|
return get_lang('MailingSelectNoOther');
|
|
|
}
|
|
|
|
|
|
// we are doing a just upload but an additional recipient is selected.
|
|
|
// note: why can't this be valid? It is like sending a document to yourself AND to a different person (I do this quite often with my e-mails)
|
|
|
if ( $thisIsJustUpload && ( count($_POST['recipients']) != 1))
|
|
|
{
|
|
|
return get_lang('mailingJustUploadSelectNoOther');
|
|
|
}
|
|
|
|
|
|
if ( empty( $_FILES['file']['name']))
|
|
|
{
|
|
|
$error = TRUE;
|
|
|
return get_lang('NoFileSpecified');
|
|
|
}
|
|
|
|
|
|
// ----------------------------------------------------------
|
|
|
// are we overwriting a previous file or sending a new one
|
|
|
// ----------------------------------------------------------
|
|
|
$dropbox_overwrite = false;
|
|
|
if ( isset($_POST['cb_overwrite']) && $_POST['cb_overwrite']==true)
|
|
|
{
|
|
|
$dropbox_overwrite = true;
|
|
|
}
|
|
|
|
|
|
// ----------------------------------------------------------
|
|
|
// doing the upload
|
|
|
// ----------------------------------------------------------
|
|
|
$dropbox_filename = $_FILES['file']['name'];
|
|
|
$dropbox_filesize = $_FILES['file']['size'];
|
|
|
$dropbox_filetype = $_FILES['file']['type'];
|
|
|
$dropbox_filetmpname = $_FILES['file']['tmp_name'];
|
|
|
|
|
|
// check if the filesize does not exceed the allowed size.
|
|
|
if ( $dropbox_filesize <= 0 || $dropbox_filesize > $dropbox_cnf["maxFilesize"])
|
|
|
{
|
|
|
return get_lang('DropboxFileTooBig');
|
|
|
}
|
|
|
|
|
|
// check if the file is actually uploaded
|
|
|
if ( !is_uploaded_file( $dropbox_filetmpname)) // check user fraud : no clean error msg.
|
|
|
{
|
|
|
return get_lang('TheFileIsNotUploaded');
|
|
|
}
|
|
|
|
|
|
// Try to add an extension to the file if it hasn't got one
|
|
|
$dropbox_filename = add_ext_on_mime( $dropbox_filename,$dropbox_filetype);
|
|
|
// Replace dangerous characters
|
|
|
$dropbox_filename = replace_dangerous_char( $dropbox_filename);
|
|
|
// Transform any .php file in .phps fo security
|
|
|
$dropbox_filename = php2phps ( $dropbox_filename);
|
|
|
// set title
|
|
|
$dropbox_title = $dropbox_filename;
|
|
|
// set author
|
|
|
if ( $_POST['authors'] == '')
|
|
|
{
|
|
|
$_POST['authors'] = getUserNameFromId( $_user['user_id']);
|
|
|
}
|
|
|
|
|
|
// note: I think we could better migrate everything from here on to separate functions: store_new_dropbox, store_new_mailing, store_just_upload
|
|
|
|
|
|
if ( $dropbox_overwrite) // RH: Mailing: adapted
|
|
|
{
|
|
|
$dropbox_person = new Dropbox_Person( $_user['user_id'], $is_courseAdmin, $is_courseTutor);
|
|
|
|
|
|
foreach($dropbox_person->sentWork as $w)
|
|
|
{
|
|
|
if ($w->title == $dropbox_filename)
|
|
|
{
|
|
|
if ( ($w->recipients[0]['id'] > dropbox_cnf("mailingIdBase")) xor $thisIsAMailing)
|
|
|
{
|
|
|
return get_lang('mailingNonMailingError');
|
|
|
}
|
|
|
if ( ($w->recipients[0]['id'] == $_user['user_id']) xor $thisIsJustUpload)
|
|
|
{
|
|
|
return get_lang('mailingJustUploadNoOther');
|
|
|
}
|
|
|
$dropbox_filename = $w->filename;
|
|
|
$found = true; // note: do we still need this?
|
|
|
break;
|
|
|
}
|
|
|
}
|
|
|
}
|
|
|
else // rename file to login_filename_uniqueId format
|
|
|
{
|
|
|
$dropbox_filename = getLoginFromId( $_user['user_id']) . "_" . $dropbox_filename . "_".uniqid('');
|
|
|
}
|
|
|
|
|
|
// creating the array that contains all the users who will receive the file
|
|
|
$new_work_recipients = array();
|
|
|
foreach ($_POST["recipients"] as $rec)
|
|
|
{
|
|
|
if (strpos($rec, 'user_') === 0)
|
|
|
{
|
|
|
$new_work_recipients[] = substr($rec, strlen('user_') );
|
|
|
}
|
|
|
elseif (strpos($rec, 'group_') === 0 )
|
|
|
{
|
|
|
$userList = GroupManager::get_subscribed_users(substr($rec, strlen('group_') ));
|
|
|
foreach ($userList as $usr)
|
|
|
{
|
|
|
if (! in_array($usr['user_id'], $newWorkRecipients) && $usr['user_id'] != $_user['user_id'])
|
|
|
{
|
|
|
$new_work_recipients[] = $usr['user_id'];
|
|
|
}
|
|
|
}
|
|
|
}
|
|
|
}
|
|
|
|
|
|
|
|
|
@move_uploaded_file( $dropbox_filetmpname, dropbox_cnf("sysPath") . '/' . $dropbox_filename);
|
|
|
|
|
|
$b_send_mail = api_get_course_setting('email_alert_on_new_doc_dropbox');
|
|
|
if($b_send_mail){
|
|
|
foreach($new_work_recipients as $recipient_id){
|
|
|
include_once(api_get_path(LIBRARY_PATH) . 'usermanager.lib.php');
|
|
|
$recipent_temp=UserManager :: get_user_info_by_id($recipient_id);
|
|
|
api_mail($recipent_temp['lastname'].' '.$recipent_temp['firstname'],$recipent_temp['email'],get_lang('NewDropboxFileUploaded'),get_lang('NewDropboxFileUploadedContent').' '.api_get_path(WEB_CODE_PATH).'dropbox/index.php?cidReq='.$_course['sysCode']."\n\n".get_setting('administratorName')." ".get_setting('administratorSurname')."\n". get_lang('Manager'). " ".get_setting('siteName')."\n" .get_lang('Email') ." : ".get_setting('emailAdministrator'),get_setting('administratorName')." ".get_setting('administratorSurname'),get_setting('emailAdministrator'));
|
|
|
}
|
|
|
}
|
|
|
|
|
|
new Dropbox_SentWork( $_user['user_id'], $dropbox_title, $_POST['description'], strip_tags($_POST['authors']), $dropbox_filename, $dropbox_filesize, $new_work_recipients);
|
|
|
|
|
|
Security::clear_token();
|
|
|
return get_lang('FileUploadSucces');
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
/**
|
|
|
* This function displays the firstname and lastname of the user as a link to the user tool.
|
|
|
*
|
|
|
* @see this is the same function as in the new forum, so this probably has to move to a user library.
|
|
|
*
|
|
|
* @todo move this function to the user library
|
|
|
*
|
|
|
* @author Patrick Cool <patrick.cool@UGent.be>, Ghent University
|
|
|
* @version march 2006
|
|
|
*/
|
|
|
function display_user_link($user_id, $name='')
|
|
|
{
|
|
|
global $_otherusers;
|
|
|
|
|
|
if ($user_id<>0)
|
|
|
{
|
|
|
if ($name=='')
|
|
|
{
|
|
|
$table_user = Database::get_main_table(TABLE_MAIN_USER);
|
|
|
$sql="SELECT * FROM $table_user WHERE user_id='".Database::escape_string($user_id)."'";
|
|
|
$result=api_sql_query($sql,__FILE__,__LINE__);
|
|
|
$row=mysql_fetch_array($result);
|
|
|
return "<a href=\"../user/userInfo.php?uInfo=".$row['user_id']."\">".$row['firstname']." ".$row['lastname']."</a>";
|
|
|
}
|
|
|
else
|
|
|
{
|
|
|
return "<a href=\"../user/userInfo.php?uInfo=".$user_id."\">".$name."</a>";
|
|
|
}
|
|
|
}
|
|
|
else
|
|
|
{
|
|
|
return $name.' ('.get_lang('Anonymous').')';
|
|
|
}
|
|
|
}
|
|
|
|
|
|
/**
|
|
|
* this function transforms the array containing all the feedback into something visually attractive.
|
|
|
*
|
|
|
* @param an array containing all the feedback about the given message.
|
|
|
*
|
|
|
* @author Patrick Cool <patrick.cool@UGent.be>, Ghent University
|
|
|
* @version march 2006
|
|
|
*/
|
|
|
function feedback($array)
|
|
|
{
|
|
|
|
|
|
foreach ($array as $key=>$value)
|
|
|
{
|
|
|
$output.=format_feedback($value);
|
|
|
}
|
|
|
$output.=feedback_form();
|
|
|
return $output;
|
|
|
}
|
|
|
|
|
|
/**
|
|
|
* This function returns the html code to display the feedback messages on a given dropbox file
|
|
|
* @param $feedback_array an array that contains all the feedback messages about the given document.
|
|
|
* @return html code
|
|
|
* @todo add the form for adding new comment (if the other party has not deleted it yet).
|
|
|
*
|
|
|
* @author Patrick Cool <patrick.cool@UGent.be>, Ghent University
|
|
|
* @version march 2006
|
|
|
*/
|
|
|
function format_feedback($feedback)
|
|
|
{
|
|
|
|
|
|
$output.='<strong>'.get_lang('Date').'</strong>: '.$feedback['feedback_date'].'<br />';
|
|
|
$output.='<strong>'.get_lang('Author').'</strong>: '.display_user_link($feedback['author_user_id']).'<br />';
|
|
|
$output.='<strong>'.get_lang('Text').'</strong>: '.nl2br($feedback['feedback']).'<hr size="1" noshade/>';
|
|
|
return $output;
|
|
|
}
|
|
|
|
|
|
/**
|
|
|
* this function returns the code for the form for adding a new feedback message to a dropbox file.
|
|
|
* @return html code
|
|
|
*
|
|
|
* @author Patrick Cool <patrick.cool@UGent.be>, Ghent University
|
|
|
* @version march 2006
|
|
|
*/
|
|
|
function feedback_form()
|
|
|
{
|
|
|
global $dropbox_cnf;
|
|
|
|
|
|
$return = get_lang('AddNewFeedback').'<br />';
|
|
|
|
|
|
// we now check if the other users have not delete this document yet. If this is the case then it is useless to see the
|
|
|
// add feedback since the other users will never get to see the feedback.
|
|
|
$sql="SELECT * FROM ".$dropbox_cnf["tbl_person"]." WHERE file_id='".Database::escape_string($_GET['id'])."'";
|
|
|
$result=api_sql_query($sql,__LINE__, __FILE__);
|
|
|
$number_users_who_see_file=mysql_num_rows($result);
|
|
|
if ($number_users_who_see_file>1)
|
|
|
{
|
|
|
$return .= '<textarea name="feedback" style="width: 80%; height: 80px;"></textarea><br /><input type="submit" name="store_feedback" value="'.get_lang('Ok').'"
|
|
|
onclick="document.form_tablename.attributes.action.value = document.location;document.form_tablename.submit();"/>';
|
|
|
}
|
|
|
else
|
|
|
{
|
|
|
$return .= get_lang('AllUsersHaveDeletedTheFileAndWillNotSeeFeedback');
|
|
|
}
|
|
|
return $return;
|
|
|
}
|
|
|
|
|
|
/**
|
|
|
* @return a language string (depending on the success or failure.
|
|
|
*
|
|
|
* @author Patrick Cool <patrick.cool@UGent.be>, Ghent University
|
|
|
* @version march 2006
|
|
|
*/
|
|
|
function store_feedback()
|
|
|
{
|
|
|
global $dropbox_cnf;
|
|
|
global $_user;
|
|
|
|
|
|
if (!is_numeric($_GET['id']))
|
|
|
{
|
|
|
return get_lang('FeedbackError');
|
|
|
}
|
|
|
|
|
|
if ($_POST['feedback']=='')
|
|
|
{
|
|
|
return get_lang('PleaseTypeText');
|
|
|
}
|
|
|
else
|
|
|
{
|
|
|
$sql="INSERT INTO ".$dropbox_cnf['tbl_feedback']." (file_id, author_user_id, feedback, feedback_date) VALUES
|
|
|
('".Database::escape_string($_GET['id'])."','".Database::escape_string($_user['user_id'])."','".Database::escape_string($_POST['feedback'])."',NOW())";
|
|
|
api_sql_query($sql);
|
|
|
return get_lang('DropboxFeedbackStored');
|
|
|
}
|
|
|
}
|
|
|
|
|
|
/**
|
|
|
* This function downloads all the files of the inputarray into one zip
|
|
|
* @param $array an array containing all the ids of the files that have to be downloaded.
|
|
|
* @author Patrick Cool <patrick.cool@UGent.be>, Ghent University
|
|
|
* @todo consider removing the check if the user has received or sent this file (zip download of a folder already sufficiently checks for this).
|
|
|
* @todo integrate some cleanup function that removes zip files that are older than 2 days
|
|
|
*
|
|
|
* @author Patrick Cool <patrick.cool@UGent.be>, Ghent University
|
|
|
* @version march 2006
|
|
|
*/
|
|
|
function zip_download ($array)
|
|
|
{
|
|
|
global $_course;
|
|
|
global $dropbox_cnf;
|
|
|
global $_user;
|
|
|
global $files;
|
|
|
|
|
|
$sys_course_path = api_get_path(SYS_COURSE_PATH);
|
|
|
|
|
|
// zip library for creation of the zipfile
|
|
|
include(api_get_path(LIBRARY_PATH)."/pclzip/pclzip.lib.php");
|
|
|
|
|
|
// place to temporarily stash the zipfiles
|
|
|
$temp_zip_dir = api_get_path(SYS_COURSE_PATH).$_course['path']."/temp/";
|
|
|
|
|
|
// create the directory if it does not exist yet.
|
|
|
if(!is_dir($temp_zip_dir))
|
|
|
{
|
|
|
mkdir($temp_zip_dir);
|
|
|
}
|
|
|
|
|
|
cleanup_temp_dropbox();
|
|
|
|
|
|
$files='';
|
|
|
|
|
|
// note: we also have to add the check if the user has received or sent this file. !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
|
|
|
$sql="SELECT distinct file.filename, file.title, file.author, file.description
|
|
|
FROM ".$dropbox_cnf["tbl_file"]." file, ".$dropbox_cnf["tbl_person"]." person
|
|
|
WHERE file.id IN (".implode(', ',$array).")
|
|
|
AND file.id=person.file_id
|
|
|
AND person.user_id='".$_user['user_id']."'";
|
|
|
$result=api_sql_query($sql,__FILE__,__LINE__);
|
|
|
while ($row=mysql_fetch_array($result))
|
|
|
{
|
|
|
$files[$row['filename']]=array('filename'=>$row['filename'],'title'=>$row['title'], 'author'=>$row['author'], 'description'=>$row['description']);
|
|
|
}
|
|
|
|
|
|
//$alternative is a variable that uses an alternative method to create the zip
|
|
|
// because the renaming of the files inside the zip causes error on php5 (unexpected end of archive)
|
|
|
$alternative=true;
|
|
|
if ($alternative)
|
|
|
{
|
|
|
zip_download_alternative($files);
|
|
|
exit;
|
|
|
}
|
|
|
|
|
|
// create the zip file
|
|
|
$temp_zip_file=$temp_zip_dir.'/dropboxdownload-'.$_user['user_id'].'-'.mktime().'.zip';
|
|
|
$zip_folder=new PclZip($temp_zip_file);
|
|
|
|
|
|
foreach ($files as $key=>$value)
|
|
|
{
|
|
|
// met hernoemen van de files in de zip
|
|
|
$zip_folder->add(api_get_path(SYS_COURSE_PATH).$_course['path']."/dropbox/".$value['filename'],PCLZIP_OPT_REMOVE_PATH, api_get_path(SYS_COURSE_PATH).$_course['path']."/dropbox", PCLZIP_CB_PRE_ADD, 'my_pre_add_callback');
|
|
|
// zonder hernoemen van de files in de zip
|
|
|
//$zip_folder->add(api_get_path(SYS_COURSE_PATH).$_course['path']."/dropbox/".$value['filename'],PCLZIP_OPT_REMOVE_PATH, api_get_path(SYS_COURSE_PATH).$_course['path']."/dropbox");
|
|
|
}
|
|
|
|
|
|
// create the overview file
|
|
|
$overview_file_content=generate_html_overview($files, array('filename'), array('title'));
|
|
|
$overview_file=$temp_zip_dir.'/overview.html';
|
|
|
$handle=fopen($overview_file,'w');
|
|
|
fwrite($handle,$overview_file_content);
|
|
|
|
|
|
|
|
|
// send the zip file
|
|
|
DocumentManager::file_send_for_download($temp_zip_file,true,$name);
|
|
|
exit;
|
|
|
}
|
|
|
/**
|
|
|
* This is a callback function to decrypt the files in the zip file to their normal filename (as stored in the database)
|
|
|
* @param $p_event a variable of PCLZip
|
|
|
* @param $p_header a variable of PCLZip
|
|
|
*
|
|
|
* @author Patrick Cool <patrick.cool@UGent.be>, Ghent University
|
|
|
* @version march 2006
|
|
|
*/
|
|
|
function my_pre_add_callback($p_event, &$p_header)
|
|
|
{
|
|
|
global $files;
|
|
|
|
|
|
$p_header['stored_filename']=$files[$p_header['stored_filename']]['title'];
|
|
|
return 1;
|
|
|
}
|
|
|
|
|
|
/**
|
|
|
* This function is an alternative zip download. It was added because PCLZip causes problems on PHP5 when using PCLZIP_CB_PRE_ADD and a callback function to rename
|
|
|
* the files inside the zip file (dropbox scrambles the files to prevent
|
|
|
* @todo consider using a htaccess that denies direct access to the file but only allows the php file to access it. This would remove the scrambling requirement
|
|
|
* but it would require additional checks to see if the filename of the uploaded file is not used yet.
|
|
|
* @param $files is an associative array that contains the files that the user wants to download (check to see if the user is allowed to download these files already
|
|
|
* happened so the array is clean!!. The key is the filename on the filesystem. The value is an array that contains both the filename on the filesystem and
|
|
|
* the original filename (that will be used in the zip file)
|
|
|
* @todo when we copy the files there might be two files with the same name. We need a function that (recursively) checks this and changes the name
|
|
|
*
|
|
|
* @author Patrick Cool <patrick.cool@UGent.be>, Ghent University
|
|
|
* @version march 2006
|
|
|
*/
|
|
|
function zip_download_alternative($files)
|
|
|
{
|
|
|
global $_course;
|
|
|
global $_user;
|
|
|
|
|
|
$temp_zip_dir = api_get_path(SYS_COURSE_PATH).$_course['path']."/temp/";
|
|
|
|
|
|
// Step 1: create the overview file and add it to the zip
|
|
|
$overview_file_content=generate_html_overview($files, array('filename'), array('title'));
|
|
|
$overview_file=$temp_zip_dir.'overview'.$_user['firstname'].$_user['lastname'].'.html';
|
|
|
$handle=fopen($overview_file,'w');
|
|
|
fwrite($handle,$overview_file_content);
|
|
|
// todo: find a different solution for this because even 2 seconds is no guarantee.
|
|
|
sleep(2);
|
|
|
|
|
|
// Step 2: we copy all the original dropbox files to the temp folder and change their name into the original name
|
|
|
foreach ($files as $key=>$value)
|
|
|
{
|
|
|
$value['title']=check_file_name($value['title']);
|
|
|
$files[$value['filename']]['title']=$value['title'];
|
|
|
copy(api_get_path(SYS_COURSE_PATH).$_course['path']."/dropbox/".$value['filename'], api_get_path(SYS_COURSE_PATH).$_course['path']."/temp/".$value['title']);
|
|
|
}
|
|
|
|
|
|
// Step 3: create the zip file and add all the files to it
|
|
|
$temp_zip_file=$temp_zip_dir.'/dropboxdownload-'.$_user['user_id'].'-'.mktime().'.zip';
|
|
|
$zip_folder=new PclZip($temp_zip_file);
|
|
|
foreach ($files as $key=>$value)
|
|
|
{
|
|
|
$zip_folder->add(api_get_path(SYS_COURSE_PATH).$_course['path']."/temp/".$value['title'],PCLZIP_OPT_REMOVE_PATH, api_get_path(SYS_COURSE_PATH).$_course['path']."/temp");
|
|
|
}
|
|
|
|
|
|
// Step 4: we add the overview file
|
|
|
$zip_folder->add($overview_file,PCLZIP_OPT_REMOVE_PATH, api_get_path(SYS_COURSE_PATH).$_course['path']."/temp");
|
|
|
|
|
|
// Step 5: send the file for download;
|
|
|
DocumentManager::file_send_for_download($temp_zip_file,true,$name);
|
|
|
|
|
|
// Step 6: remove the files in the temp dir
|
|
|
foreach ($files as $key=>$value)
|
|
|
{
|
|
|
unlink(api_get_path(SYS_COURSE_PATH).$_course['path']."/temp/".$value['title']);
|
|
|
}
|
|
|
//unlink($overview_file);
|
|
|
|
|
|
exit;
|
|
|
}
|
|
|
|
|
|
/**
|
|
|
* @desc This function checks if the real filename of the dropbox files doesn't already exist in the temp folder. If this is the case then
|
|
|
* it will generate a different filename;
|
|
|
*
|
|
|
* @author Patrick Cool <patrick.cool@UGent.be>, Ghent University
|
|
|
* @version march 2006
|
|
|
*/
|
|
|
function check_file_name($file_name_2_check, $counter=0)
|
|
|
{
|
|
|
global $_course;
|
|
|
|
|
|
$new_file_name=$file_name_2_check;
|
|
|
if ($counter<>0)
|
|
|
{
|
|
|
$new_file_name=$counter.$new_file_name;
|
|
|
}
|
|
|
|
|
|
if (!file_exists(api_get_path(SYS_COURSE_PATH).$_course['path']."/temp/".$new_file_name))
|
|
|
{
|
|
|
return $new_file_name;
|
|
|
}
|
|
|
else
|
|
|
{
|
|
|
$counter++;
|
|
|
$new_file_name=check_file_name($file_name_2_check,$counter);
|
|
|
return $new_file_name;
|
|
|
}
|
|
|
}
|
|
|
|
|
|
|
|
|
/**
|
|
|
* @desc Cleans the temp zip files that were created when users download several files or a whole folder at once.
|
|
|
* T
|
|
|
* @return true
|
|
|
* @todo
|
|
|
* @author Patrick Cool <patrick.cool@UGent.be>, Ghent University
|
|
|
* @version march 2006
|
|
|
*/
|
|
|
|
|
|
function cleanup_temp_dropbox()
|
|
|
{
|
|
|
global $_course;
|
|
|
|
|
|
$handle=opendir(api_get_path(SYS_COURSE_PATH).$_course['path']."/temp");
|
|
|
while (false !== ($file = readdir($handle)))
|
|
|
{
|
|
|
if ($file<>'.' OR $file<>'..')
|
|
|
{
|
|
|
$name=str_replace('.zip', '',$file);
|
|
|
$name_part=explode('-',$name);
|
|
|
$timestamp_of_file=$name_part[count($name_part)-1];
|
|
|
// if it is a dropboxdownloadfile and the file is older than one day then we delete it
|
|
|
if (strstr($file, 'dropboxdownload') AND $timestamp_of_file<(mktime()-86400))
|
|
|
{
|
|
|
unlink(api_get_path(SYS_COURSE_PATH).$_course['path']."/temp/".$file);
|
|
|
}
|
|
|
}
|
|
|
|
|
|
}
|
|
|
closedir($handle);
|
|
|
return true;
|
|
|
}
|
|
|
|
|
|
/**
|
|
|
* @desc generates the contents of a html file that gives an overview of all the files in the zip file.
|
|
|
* This is to know the information of the files that are inside the zip file (who send it, the comment, ...)
|
|
|
* @author Patrick Cool <patrick.cool@UGent.be>, Ghent University
|
|
|
* @version march 2006
|
|
|
*/
|
|
|
function generate_html_overview($files, $dont_show_columns=array(), $make_link=array())
|
|
|
{
|
|
|
$return="<html>\n<head>\n\t<title>".get_lang('OverviewOfFilesInThisZip')."</title>\n</head>";
|
|
|
$return.="\n\n<body>\n<table border=\"1px\">";
|
|
|
|
|
|
$counter=0;
|
|
|
foreach ($files as $key=>$value)
|
|
|
{
|
|
|
// We add the header
|
|
|
if ($counter==0)
|
|
|
{
|
|
|
$columns_array=array_keys($value);
|
|
|
$return.="\n<tr>";
|
|
|
foreach ($columns_array AS $columns_array_key=>$columns_array_value)
|
|
|
{
|
|
|
if (!in_array($columns_array_value,$dont_show_columns))
|
|
|
{
|
|
|
$return.="\n\t<th>".$columns_array_value."</th>";
|
|
|
}
|
|
|
$column[]=$columns_array_value;
|
|
|
}
|
|
|
$return.="</tr><n";
|
|
|
}
|
|
|
$counter++;
|
|
|
|
|
|
// We add the content
|
|
|
$return.="\n<tr>";
|
|
|
foreach ($column AS $column_key=>$column_value)
|
|
|
{
|
|
|
if (!in_array($column_value,$dont_show_columns))
|
|
|
{
|
|
|
$return.="\n\t<td>";
|
|
|
if (in_array($column_value, $make_link))
|
|
|
{
|
|
|
$return.='<a href="'.$value[$column_value].'">'.$value[$column_value].'</a>';
|
|
|
}
|
|
|
else
|
|
|
{
|
|
|
$return.=$value[$column_value];
|
|
|
}
|
|
|
$return.="</td>";
|
|
|
}
|
|
|
}
|
|
|
$return.="</tr><n";
|
|
|
|
|
|
|
|
|
}
|
|
|
$return.="\n</table>\n\n</body>";
|
|
|
$return.="\n</html>";
|
|
|
|
|
|
return $return;
|
|
|
}
|
|
|
|
|
|
/**
|
|
|
* @desc This function retrieves the number of feedback messages on every document. This function might become obsolete when
|
|
|
* the feedback becomes user individual.
|
|
|
* @author Patrick Cool <patrick.cool@UGent.be>, Ghent University
|
|
|
* @version march 2006
|
|
|
*/
|
|
|
function get_total_number_feedback($file_id='')
|
|
|
{
|
|
|
global $dropbox_cnf;
|
|
|
|
|
|
$sql="SELECT COUNT(feedback_id) AS total, file_id FROM ".$dropbox_cnf['tbl_feedback']." GROUP BY file_id";
|
|
|
$result=api_sql_query($sql, __FILE__, __LINE__);
|
|
|
while ($row=mysql_fetch_array($result))
|
|
|
{
|
|
|
$return[$row['file_id']]=$row['total'];
|
|
|
}
|
|
|
return $return;
|
|
|
}
|
|
|
|
|
|
|
|
|
/**
|
|
|
* @desc this function checks if the key exists. If this is the case it returns the value, if not it returns 0
|
|
|
* @author Patrick Cool <patrick.cool@UGent.be>, Ghent University
|
|
|
* @version march 2006
|
|
|
*/
|
|
|
function check_number_feedback($key, $array)
|
|
|
{
|
|
|
if (key_exists($key,$array))
|
|
|
{
|
|
|
return $array[$key];
|
|
|
}
|
|
|
else
|
|
|
{
|
|
|
return 0;
|
|
|
}
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
/**
|
|
|
* Get the last access to a given tool of a given user
|
|
|
* @param $tool string the tool constant
|
|
|
* @param $course_code the course_id
|
|
|
* @param $user_id the id of the user
|
|
|
* @return string last tool access date
|
|
|
*
|
|
|
* @author Patrick Cool <patrick.cool@UGent.be>, Ghent University
|
|
|
* @version march 2006
|
|
|
*
|
|
|
* @todo consider moving this function to a more appropriate place.
|
|
|
*/
|
|
|
function get_last_tool_access($tool, $course_code='', $user_id='')
|
|
|
{
|
|
|
global $_course, $_user;
|
|
|
|
|
|
// The default values of the parameters
|
|
|
if ($course_code=='')
|
|
|
{
|
|
|
$course_code=$_course['id'];
|
|
|
}
|
|
|
if ($user_id=='')
|
|
|
{
|
|
|
$user_id=$_user['user_id'];
|
|
|
}
|
|
|
|
|
|
// the table where the last tool access is stored (=track_e_lastaccess)
|
|
|
$table_last_access=Database::get_statistic_table('track_e_lastaccess');
|
|
|
|
|
|
$sql="SELECT access_date FROM $table_last_access WHERE access_user_id='".Database::escape_string($user_id)."'
|
|
|
AND access_cours_code='".Database::escape_string($course_code)."'
|
|
|
AND access_tool='".Database::escape_string($tool)."'";
|
|
|
$result=api_sql_query($sql,__FILE__,__LINE__);
|
|
|
$row=mysql_fetch_array($result);
|
|
|
return $row['access_date'];
|
|
|
}
|
|
|
?>
|
