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564 lines
19 KiB
564 lines
19 KiB
<?php // $Id: document.inc.php 22074 2009-07-14 16:28:37Z jhp1411 $
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/*
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==============================================================================
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Dokeos - elearning and course management software
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Copyright (c) 2004-2008 Dokeos SPRL
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Copyright (c) 2003 Ghent University (UGent)
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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, rue du Corbeau, 108, 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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EXTRA FUNCTIONS FOR DOCUMENT.PHP/UPLOAD.PHP
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==============================================================================
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/////////////////////////////////////////////////
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//--> leave these here or move them elsewhere? //
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/////////////////////////////////////////////////
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*/
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/**
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* Builds the form thats enables the user to
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* select a directory to browse/upload in
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*
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* @param array An array containing the folders we want to be able to select
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* @param string The current folder (path inside of the "document" directory, including the prefix "/")
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* @param string Group directory, if empty, prevents documents to be uploaded (because group documents cannot be uploaded in root)
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* @param boolean Whether to change the renderer (this will add a template <span> to the QuickForm object displaying the form)
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* @return string html form
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*/
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function build_directory_selector($folders,$curdirpath,$group_dir='',$changeRenderer=false)
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{
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$folder_titles = array();
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if(api_get_setting('use_document_title') == 'true')
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{
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if (is_array($folders))
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{
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$escaped_folders = array();
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foreach($folders as $key=>$val){$escaped_folders[$key] = Database::escape_string($val);}
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$folder_sql = implode("','",$escaped_folders);
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$doc_table = Database::get_course_table(TABLE_DOCUMENT);
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$sql = "SELECT * FROM $doc_table WHERE filetype='folder' AND path IN ('".$folder_sql."')";
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$res = Database::query($sql);
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$folder_titles = array();
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while($obj = Database::fetch_object($res))
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{
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$folder_titles[$obj->path] = $obj->title;
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}
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}
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}
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else
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{
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if (is_array($folders)){
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foreach($folders as $folder)
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{
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$folder_titles[$folder] = basename($folder);
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}
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}
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}
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require_once (api_get_path(LIBRARY_PATH).'formvalidator/FormValidator.class.php');
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$form = new FormValidator('selector','POST',api_get_self());
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$parent_select = $form->addElement('select', 'curdirpath', get_lang('CurrentDirectory'),'','onchange="javascript:document.selector.submit()"');
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if($changeRenderer==true){
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$renderer = $form->defaultRenderer();
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$renderer->setElementTemplate('<span>{label} : {element}</span> ','curdirpath');
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}
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//group documents cannot be uploaded in the root
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if(empty($group_dir))
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{
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$parent_select -> addOption(get_lang('HomeDirectory'),'/');
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if(is_array($folders))
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{
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foreach ($folders as $folder)
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{
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$selected = ($curdirpath==$folder)?' selected="selected"':'';
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$path_parts = explode('/',$folder);
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if($folder_titles[$folder]=='shared_folder')
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{
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$folder_titles[$folder]=get_lang('SharedFolder');
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}
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elseif(strstr($folder_titles[$folder], 'sf_user_'))
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{
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$userinfo=Database::get_user_info_from_id(substr($folder_titles[$folder],8));
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$folder_titles[$folder]=api_get_person_name($userinfo['firstname'], $userinfo['lastname']);
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}
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$label = str_repeat(' ',count($path_parts)-2).' — '.$folder_titles[$folder];
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$parent_select -> addOption($label,$folder);
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if($selected!='') $parent_select->setSelected($folder);
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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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foreach ($folders as $folder)
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{
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$selected = ($curdirpath==$folder)?' selected="selected"':'';
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$label = $folder_titles[$folder];
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if( $folder == $group_dir)
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{
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$label = '/ ('.get_lang('HomeDirectory').')';
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}
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else
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{
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$path_parts = explode('/',str_replace($group_dir,'',$folder));
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$label = str_repeat(' ',count($path_parts)-2).' — '.$label;
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}
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$parent_select -> addOption($label,$folder);
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if($selected!='') $parent_select->setSelected($folder);
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}
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}
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$form=$form->toHtml();
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return $form;
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}
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/**
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* Create a html hyperlink depending on if it's a folder or a file
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*
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* @param string $www
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* @param string $title
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* @param string $path
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* @param string $filetype (file/folder)
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* @param int $visibility (1/0)
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* @param int $show_as_icon - if it is true, only a clickable icon will be shown
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* @return string url
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*/
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function create_document_link($www, $title, $path, $filetype, $size, $visibility, $show_as_icon = false)
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{
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global $dbl_click_id;
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if(isset($_SESSION['_gid']))
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{
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$req_gid = '&gidReq='.$_SESSION['_gid'];
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}
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else
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{
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$req_gid = '';
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}
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$url_path = urlencode($path);
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//add class="invisible" on invisible files
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$visibility_class= ($visibility==0)?' class="invisible"':'';
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if (!$show_as_icon)
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{
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//build download link (icon)
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$forcedownload_link=($filetype=='folder')?api_get_self().'?'.api_get_cidreq().'&action=downloadfolder&path='.$url_path.$req_gid:api_get_self().'?'.api_get_cidreq().'&action=download&id='.$url_path.$req_gid;
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//folder download or file download?
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$forcedownload_icon=($filetype=='folder')?'folder_zip.gif':'filesave.gif';
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//prevent multiple clicks on zipped folder download
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$prevent_multiple_click =($filetype=='folder')?" onclick=\"javascript:if(typeof clic_$dbl_click_id == 'undefined' || clic_$dbl_click_id == false) { clic_$dbl_click_id=true; window.setTimeout('clic_".($dbl_click_id++)."=false;',10000); } else { return false; }\"":'';
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}
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$target='_self';
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if($filetype=='file') {
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//check the extension
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$ext=explode('.',$path);
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$ext=strtolower($ext[sizeof($ext)-1]);
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//"htmlfiles" are shown in a frameset
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if($ext == 'htm' || $ext == 'html' || $ext == 'gif' || $ext == 'jpg' || $ext == 'jpeg' || $ext == 'png')
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{
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$url = "showinframes.php?".api_get_cidreq()."&file=".$url_path.$req_gid;
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}
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else
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{
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//url-encode for problematic characters (we may not call them dangerous characters...)
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$path = str_replace('%2F', '/',$url_path).'?'.api_get_cidreq();
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$url=$www.$path;
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}
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//files that we want opened in a new window
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if($ext=='txt' || $ext=='log' || $ext=='css' || $ext=='js') //add here
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{
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$target='_blank';
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}
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}
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else
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{
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$url=api_get_self().'?'.api_get_cidreq().'&curdirpath='.$url_path.$req_gid;
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}
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//the little download icon
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//$tooltip_title = str_replace('?cidReq='.$_GET['cidReq'],'',basename($path));
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$tooltip_title = explode('?', basename($path));
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$tooltip_title = $tooltip_title[0];
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if($tooltip_title=='shared_folder')
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{
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$tooltip_title_alt=get_lang('SharedFolder');
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}
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elseif(strstr($tooltip_title, 'sf_user_'))
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{
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$userinfo=Database::get_user_info_from_id(substr($tooltip_title,8));
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$tooltip_title_alt=api_get_person_name($userinfo['firstname'], $userinfo['lastname']);
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}
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else
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{
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$tooltip_title_alt=$tooltip_title;
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}
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if (!$show_as_icon)
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{
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if($filetype=="folder")
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{
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if(api_is_allowed_to_edit() || api_is_platform_admin() || api_get_setting('students_download_folders') == 'true')
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{
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$force_download_html = ($size==0)?'':'<a href="'.$forcedownload_link.'" style="float:right"'.$prevent_multiple_click.'>'.Display::return_icon($forcedownload_icon, get_lang('Download'),array('height'=>'16', 'width' => '16')).'</a>';
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}
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}
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else
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{
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$force_download_html = ($size==0)?'':'<a href="'.$forcedownload_link.'" style="float:right"'.$prevent_multiple_click.'>'.Display::return_icon($forcedownload_icon, get_lang('Download'),array('height'=>'16', 'width' => '16')).'</a>';
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}
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return '<a href="'.$url.'" title="'.$tooltip_title_alt.'" target="'.$target.'"'.$visibility_class.' style="float:left">'.$title.'</a>'.$force_download_html;
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}
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else
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{
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return '<a href="'.$url.'" title="'.$tooltip_title_alt.'" target="'.$target.'"'.$visibility_class.' style="float:left">'.build_document_icon_tag($filetype, $tooltip_title).'</a>';
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}
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}
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/**
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* Builds an img html tag for the filetype
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*
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* @param string $type (file/folder)
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* @param string $path
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* @return string img html tag
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*/
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function build_document_icon_tag($type, $path)
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{
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$basename = basename($path);
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$current_session_id = api_get_session_id();
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$is_allowed_to_edit = api_is_allowed_to_edit(null,true);
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if ($type == 'file')
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{
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$icon = choose_image($basename);
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}
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else
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{
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if($basename =='shared_folder')
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{
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$icon = 'shared_folder.gif';
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if ($is_allowed_to_edit)
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{
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$basename = get_lang('HelpSharedFolder');
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}
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else
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{
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$basename = get_lang('SharedFolder');
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}
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}
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elseif(strstr($basename, 'sf_user_'))
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{
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$userinfo=Database::get_user_info_from_id(substr($basename,8));
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$image_path = UserManager::get_user_picture_path_by_id(substr($basename,8),'web',false, true);
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if($image_path['file']=='unknown.jpg')
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{
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$icon = $image_path['file'];
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}
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else
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{
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$icon = '../upload/users/'.substr($basename,8).'/'.$image_path['file'];
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}
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$basename = api_get_person_name($userinfo['firstname'], $userinfo['lastname']);
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}
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else
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{
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if(($basename =='audio' || $basename =='flash' || $basename =='images' || $basename =='video') && api_is_allowed_to_edit()==true)
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{
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$basename = get_lang('HelpDefaultDirDocuments');
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}
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$icon = 'folder_document.gif';
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}
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}
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return Display::return_icon($icon, $basename, array('hspace'=>'5', 'align' => 'middle', 'height'=> 22, 'width' => 22));
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}
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/**
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* Creates the row of edit icons for a file/folder
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*
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* @param string $curdirpath current path (cfr open folder)
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* @param string $type (file/folder)
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* @param string $path dbase path of file/folder
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* @param int $visibility (1/0)
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* @param int $id dbase id of the document
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* @return string html img tags with hyperlinks
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*/
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function build_edit_icons($curdirpath,$type,$path,$visibility,$id,$is_template,$is_read_only=0, $session_id=0)
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{
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if(isset($_SESSION['_gid']))
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{
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$req_gid = '&gidReq='.$_SESSION['_gid'];
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}
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else
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{
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$req_gid = '';
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}
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//build URL-parameters for table-sorting
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$sort_params = array();
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if( isset($_GET['column']))
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{
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$sort_params[] = 'column='.Security::remove_XSS($_GET['column']);
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}
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if( isset($_GET['page_nr']))
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{
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$sort_params[] = 'page_nr='.Security::remove_XSS($_GET['page_nr']);
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}
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if( isset($_GET['per_page']))
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{
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$sort_params[] = 'per_page='.Security::remove_XSS($_GET['per_page']);
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}
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if( isset($_GET['direction']))
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{
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$sort_params[] = 'direction='.Security::remove_XSS($_GET['direction']);
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}
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$sort_params = implode('&',$sort_params);
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$visibility_icon = ($visibility==0)?'invisible':'visible';
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$visibility_command = ($visibility==0)?'set_visible':'set_invisible';
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$curdirpath = urlencode($curdirpath);
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$modify_icons = '';
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$cur_ses = api_get_session_id();
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// if document is read only *or* we're in a session and the document
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// is from a non-session context, hide the edition capabilities
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if ($is_read_only /*or ($session_id!=$cur_ses)*/)
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{
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$modify_icons = Display::return_icon('edit_na.gif', get_lang('Modify'));
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$modify_icons .= ' '.Display::return_icon('delete_na.gif', get_lang('Delete'));
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$modify_icons .= ' '.Display::return_icon('deplacer_fichier_na.gif', get_lang('Move'));
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$modify_icons .= ' '.Display::return_icon($visibility_icon.'_na.gif', get_lang('VisibilityCannotBeChanged'));
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}
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else
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{
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$modify_icons = '<a href="edit_document.php?'.api_get_cidreq().'&curdirpath='.$curdirpath.'&file='.urlencode($path).$req_gid.'"><img src="../img/edit.gif" border="0" title="'.get_lang('Modify').'" alt="" /></a>';
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if (strcmp($path,'/audio')===0 or strcmp($path,'/flash')===0 or strcmp($path,'/images')===0 or strcmp($path,'/shared_folder')===0 or strcmp($path,'/video')===0 or strcmp($path,'/chat_files')===0) {
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$modify_icons .= ' '.Display::return_icon('delete_na.gif',get_lang('ThisFolderCannotBeDeleted'));
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} else {
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$modify_icons .= ' <a href="'.api_get_self().'?'.api_get_cidreq().'&curdirpath='.$curdirpath.'&delete='.urlencode($path).$req_gid.'&'.$sort_params.'" onclick="return confirmation(\''.basename($path).'\');"><img src="../img/delete.gif" border="0" title="'.get_lang('Delete').'" alt="" /></a>';
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}
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$modify_icons .= ' <a href="'.api_get_self().'?'.api_get_cidreq().'&curdirpath='.$curdirpath.'&move='.urlencode($path).$req_gid.'"><img src="../img/deplacer_fichier.gif" border="0" title="'.get_lang('Move').'" alt="" /></a>';
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$modify_icons .= ' <a href="'.api_get_self().'?'.api_get_cidreq().'&curdirpath='.$curdirpath.'&'.$visibility_command.'='.$id.$req_gid.'&'.$sort_params.'"><img src="../img/'.$visibility_icon.'.gif" border="0" title="'.get_lang('Visible').'" alt="" /></a>';
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}
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if($type == 'file' && pathinfo($path,PATHINFO_EXTENSION)=='html')
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{
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if($is_template==0)
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{
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$modify_icons .= ' <a href="'.api_get_self().'?'.api_get_cidreq().'&curdirpath='.$curdirpath.'&add_as_template='.$id.$req_gid.'&'.$sort_params.'"><img src="../img/wizard_small.gif" border="0" title="'.get_lang('AddAsTemplate').'" alt="'.get_lang('AddAsTemplate').'" /></a>';
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}
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else{
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$modify_icons .= ' <a href="'.api_get_self().'?'.api_get_cidreq().'&curdirpath='.$curdirpath.'&remove_as_template='.$id.$req_gid.'&'.$sort_params.'"><img src="../img/wizard_gray_small.gif" border="0" title="'.get_lang('RemoveAsTemplate').'" alt=""'.get_lang('RemoveAsTemplate').'" /></a>';
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}
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}
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return $modify_icons;
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}
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function build_move_to_selector($folders,$curdirpath,$move_file,$group_dir='')
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{
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$form = '<form name="move_to" action="'.api_get_self().'" method="post">'."\n";
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$form .= '<input type="hidden" name="move_file" value="'.$move_file.'" />'."\n";
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$form .= '<div class="row">';
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$form .= ' <div class="label">';
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$form .= get_lang('MoveTo');
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$form .= ' </div>';
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$form .= ' <div class="formw">';
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$form .= ' <select name="move_to">'."\n";
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//group documents cannot be uploaded in the root
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if($group_dir=='')
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{
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if($curdirpath!='/')
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{
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$form .= '<option value="/">/ ('.get_lang('HomeDirectory').')</option>';
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}
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if(is_array($folders))
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{
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foreach ($folders AS $folder)
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{
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//you cannot move a file to:
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//1. current directory
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//2. inside the folder you want to move
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//3. inside a subfolder of the folder you want to move
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if(($curdirpath!=$folder) && ($folder!=$move_file) && (substr($folder,0,strlen($move_file)+1) != $move_file.'/'))
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{
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$path_displayed = $folder;
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// if document title is used, we have to display titles instead of real paths...
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if(api_get_setting('use_document_title'))
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{
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$path_displayed = get_titles_of_path($folder);
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}
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$form .= '<option value="'.$folder.'">'.$path_displayed.'</option>'."\n";
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}
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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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foreach ($folders AS $folder)
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{
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if(($curdirpath!=$folder) && ($folder!=$move_file) && (substr($folder,0,strlen($move_file)+1) != $move_file.'/'))//cannot copy dir into his own subdir
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{
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if(api_get_setting('use_document_title'))
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{
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$path_displayed = get_titles_of_path($folder);
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}
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$display_folder = substr($path_displayed,strlen($group_dir));
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$display_folder = ($display_folder == '')?'/ ('.get_lang('HomeDirectory').')':$display_folder;
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$form .= '<option value="'.$folder.'">'.$display_folder.'</option>'."\n";
|
|
}
|
|
}
|
|
}
|
|
|
|
$form .= ' </select>'."\n";
|
|
$form .= ' </div>';
|
|
|
|
$form .= '<div class="row">';
|
|
$form .= ' <div class="label"></div>';
|
|
$form .= ' <div class="formw">';
|
|
$form .= ' <button type="submit" class="next" name="move_file_submit">'.get_lang('MoveElement').'</button>'."\n";
|
|
$form .= ' </div>';
|
|
$form .= '</div>';
|
|
|
|
$form .= '</form>';
|
|
|
|
$form .= '<div style="clear: both; margin-bottom: 10px;"></div>';
|
|
|
|
return $form;
|
|
}
|
|
|
|
|
|
/**
|
|
* get the path translated with title of docs and folders
|
|
* @param string the real path
|
|
* @return the path which should be displayed
|
|
*/
|
|
function get_titles_of_path($path)
|
|
{
|
|
global $tmp_folders_titles;
|
|
|
|
$nb_slashes = substr_count($path,'/');
|
|
$tmp_path = '';
|
|
$current_slash_pos = 0;
|
|
$path_displayed = '';
|
|
for($i=0; $i<$nb_slashes; $i++)
|
|
{ // foreach folders of the path, retrieve title.
|
|
|
|
$current_slash_pos = strpos($path,'/',$current_slash_pos+1);
|
|
$tmp_path = substr($path,strpos($path,'/',0),$current_slash_pos);
|
|
|
|
if(empty($tmp_path)) // if empty, then we are in the final part of the path
|
|
$tmp_path = $path;
|
|
|
|
if(!empty($tmp_folders_titles[$tmp_path])) // if this path has soon been stored here we don't need a new query
|
|
{
|
|
$path_displayed .= $tmp_folders_titles[$tmp_path];
|
|
}
|
|
else
|
|
{
|
|
$sql = 'SELECT title FROM '.Database::get_course_table(TABLE_DOCUMENT).' WHERE path LIKE BINARY "'.$tmp_path.'"';
|
|
$rs = Database::query($sql);
|
|
$tmp_title = '/'.Database::result($rs,0,0);
|
|
$path_displayed .= $tmp_title;
|
|
$tmp_folders_titles[$tmp_path] = $tmp_title;
|
|
}
|
|
}
|
|
return $path_displayed;
|
|
}
|
|
|
|
|
|
|
|
/**
|
|
* This function displays the name of the user and makes the link tothe user tool.
|
|
*
|
|
* @param $user_id
|
|
* @param $name
|
|
* @return a link to the userInfo.php
|
|
* @author Patrick Cool <patrick.cool@UGent.be>, Ghent University
|
|
* @version february 2006, dokeos 1.8
|
|
*/
|
|
function display_user_link_document($user_id, $name)
|
|
{
|
|
if ($user_id<>0)
|
|
{
|
|
return '<a href="../user/userInfo.php?uInfo='.$user_id.'">'.$name.'</a>';
|
|
}
|
|
else
|
|
{
|
|
return get_lang('Anonymous');
|
|
}
|
|
}
|
|
|
|
function create_dir_form()
|
|
{
|
|
//create the form that asks for the directory name
|
|
$new_folder_text = '<form action="'.api_get_self().'" method="post">';
|
|
$new_folder_text .= '<input type="hidden" name="curdirpath" value="'.Security::remove_XSS($_GET['curdirpath']).'" />';
|
|
// form title
|
|
$new_folder_text .= '<div class="row"><div class="form_header">'.get_lang('CreateDir').'</div></div>';
|
|
|
|
// folder field
|
|
$new_folder_text .= '<div class="row">';
|
|
$new_folder_text .= '<div class="label"><span class="form_required">*</span>'.get_lang('NewDir').'</div>';
|
|
$new_folder_text .= '<div class="formw"><input type="text" name="dirname" /></div>';
|
|
$new_folder_text .= '</div>';
|
|
// submit button
|
|
$new_folder_text .= '<div class="row">';
|
|
$new_folder_text .= '<div class="label"> </div>';
|
|
$new_folder_text .= '<div class="formw"><button type="submit" class="add" name="create_dir">'.get_lang('CreateFolder').'</button></div>';
|
|
$new_folder_text .= '</div>';
|
|
$new_folder_text .= '</form>';
|
|
$new_folder_text .= '<div style="clear: both; margin-bottom: 10px;"></div>';
|
|
|
|
return $new_folder_text;
|
|
}
|
|
|
|
/**
|
|
* get if the user is in his shared folder
|
|
* @return return bool Return true when user is in his shared folder
|
|
*/
|
|
|
|
function is_my_shared_folder($user_id, $path)
|
|
{
|
|
if('/shared_folder/sf_user_'.$user_id==Security::remove_XSS($path))
|
|
{
|
|
return true;
|
|
}
|
|
return false;
|
|
}
|
|
|
|
?>
|
|
|