<?php // $Id: document.inc.php 18624 2009-02-20 18:31:55Z herodoto $
/*
==============================================================================
Dokeos - elearning and course management software
Copyright (c) 2004-2008 Dokeos SPRL
Copyright (c) 2003 Ghent University (UGent)
Copyright (c) 2001 Universite catholique de Louvain (UCL)
Copyright (c) various contributors
For a full list of contributors, see "credits.txt".
The full license can be read in "license.txt".
This program is free software; you can redistribute it and/or
modify it under the terms of the GNU General Public License
as published by the Free Software Foundation; either version 2
of the License, or (at your option) any later version.
See the GNU General Public License for more details.
Contact address: Dokeos, rue du Corbeau, 108, B-1030 Brussels, Belgium
Mail: info@dokeos.com
==============================================================================
*/
/*
==============================================================================
EXTRA FUNCTIONS FOR DOCUMENT.PHP/UPLOAD.PHP
==============================================================================
/////////////////////////////////////////////////
//--> leave these here or move them elsewhere? //
/////////////////////////////////////////////////
*/
/**
* Builds the form thats enables the user to
* select a directory to browse/upload in
*
* @param array An array containing the folders we want to be able to select
* @param string The current folder (path inside of the "document" directory, including the prefix "/")
* @param string Group directory, if empty, prevents documents to be uploaded (because group documents cannot be uploaded in root)
* @param boolean Whether to change the renderer (this will add a template < span > to the QuickForm object displaying the form)
* @return string html form
*/
function build_directory_selector($folders,$curdirpath,$group_dir='',$changeRenderer=false)
{
$folder_titles = array();
if(get_setting('use_document_title') == 'true')
{
if (is_array($folders))
{
$escaped_folders = array();
foreach($folders as $key=>$val){$escaped_folders[$key] = Database::escape_string($val);}
$folder_sql = implode("','",$escaped_folders);
$doc_table = Database::get_course_table(TABLE_DOCUMENT);
$sql = "SELECT * FROM $doc_table WHERE filetype='folder' AND path IN ('".$folder_sql."')";
$res = api_sql_query($sql,__FILE__,__LINE__);
$folder_titles = array();
while($obj = Database::fetch_object($res))
{
$folder_titles[$obj->path] = $obj->title;
}
}
}
else
{
if (is_array($folders)){
foreach($folders as $folder)
{
$folder_titles[$folder] = basename($folder);
}
}
}
require_once (api_get_path(LIBRARY_PATH).'formvalidator/FormValidator.class.php');
$form = new FormValidator('selector','POST',api_get_self());
$parent_select = $form->addElement('select', 'curdirpath', get_lang('CurrentDirectory'),'','onchange="javascript:document.selector.submit()"');
if($changeRenderer==true){
$renderer = $form->defaultRenderer();
$renderer->setElementTemplate('< span > {label} : {element}< / span > ','curdirpath');
}
//group documents cannot be uploaded in the root
if(empty($group_dir))
{
$parent_select -> addOption(get_lang('HomeDirectory'),'/');
if(is_array($folders))
{
foreach ($folders as $folder)
{
$selected = ($curdirpath==$folder)?' selected="selected"':'';
$path_parts = explode('/',$folder);
if($folder_titles[$folder]=='shared_folder')
{
$folder_titles[$folder]=get_lang('SharedFolder');
}
elseif(strstr($folder_titles[$folder], 'sf_user_'))
{
$userinfo=Database::get_user_info_from_id(substr($folder_titles[$folder],8));
$folder_titles[$folder]=$userinfo['lastname'].', '.$userinfo['firstname'];
}
$label = str_repeat(' ',count($path_parts)-2).' — '.$folder_titles[$folder];
$parent_select -> addOption($label,$folder);
if($selected!='') $parent_select->setSelected($folder);
}
}
}
else
{
foreach ($folders as $folder)
{
$selected = ($curdirpath==$folder)?' selected="selected"':'';
$label = $folder_titles[$folder];
if( $folder == $group_dir)
{
$label = '/ ('.get_lang('HomeDirectory').')';
}
else
{
$path_parts = explode('/',str_replace($group_dir,'',$folder));
$label = str_repeat(' ',count($path_parts)-2).' — '.$label;
}
$parent_select -> addOption($label,$folder);
if($selected!='') $parent_select->setSelected($folder);
}
}
$form=$form->toHtml();
return $form;
}
/**
* Create a html hyperlink depending on if it's a folder or a file
*
* @param string $www
* @param string $title
* @param string $path
* @param string $filetype (file/folder)
* @param int $visibility (1/0)
* @param int $show_as_icon - if it is true, only a clickable icon will be shown
* @return string url
*/
function create_document_link($www, $title, $path, $filetype, $size, $visibility, $show_as_icon = false)
{
global $dbl_click_id;
if(isset($_SESSION['_gid']))
{
$req_gid = '& gidReq='.$_SESSION['_gid'];
}
else
{
$req_gid = '';
}
$url_path = urlencode($path);
//add class="invisible" on invisible files
$visibility_class= ($visibility==0)?' class="invisible"':'';
if (!$show_as_icon)
{
//build download link (icon)
$forcedownload_link=($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;
//folder download or file download?
$forcedownload_icon=($filetype=='folder')?'folder_zip.gif':'filesave.gif';
//prevent multiple clicks on zipped folder download
$prevent_multiple_click =($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; }\"":'';
}
$target='_top';
if($filetype=='file') {
//check the extension
$ext=explode('.',$path);
$ext=strtolower($ext[sizeof($ext)-1]);
//"htmlfiles" are shown in a frameset
if($ext == 'htm' || $ext == 'html' || $ext == 'gif' || $ext == 'jpg' || $ext == 'jpeg' || $ext == 'png')
{
$url = "showinframes.php?".api_get_cidreq()."& file=".$url_path.$req_gid;
}
else
{
//url-encode for problematic characters (we may not call them dangerous characters...)
$path = str_replace('%2F', '/',$url_path).'?'.api_get_cidreq();
$url=$www.$path;
}
//files that we want opened in a new window
if($ext=='txt') //add here
{
$target='_blank';
}
}
else
{
$url=api_get_self().'?'.api_get_cidreq().'& curdirpath='.$url_path.$req_gid;
}
//the little download icon
//$tooltip_title = str_replace('?cidReq='.$_GET['cidReq'],'',basename($path));
$tooltip_title = explode('?', basename($path));
$tooltip_title = $tooltip_title[0];
if($tooltip_title=='shared_folder')
{
$tooltip_title_alt=get_lang('SharedFolder');
}
elseif(strstr($tooltip_title, 'sf_user_'))
{
$userinfo=Database::get_user_info_from_id(substr($tooltip_title,8));
$tooltip_title_alt=$userinfo['lastname'].', '.$userinfo['firstname'];
}
else
{
$tooltip_title_alt=$tooltip_title;
}
if (!$show_as_icon)
{
$force_download_html = ($size==0)?'':'< a href = "'.$forcedownload_link.'" style = "float:right" ' . $ prevent_multiple_click . ' > '.Display::return_icon($forcedownload_icon, get_lang('Download'),array('height'=>'16', 'width' => '16')).'< / a > ';
return '< a href = "'.$url.'" title = "'.$tooltip_title_alt.'" target = "'.$target.'" ' . $ visibility_class . ' style = "float:left" > '.$title.'< / a > '.$force_download_html;
}
else
{
return '< a href = "'.$url.'" title = "'.$tooltip_title_alt.'" target = "'.$target.'" ' . $ visibility_class . ' style = "float:left" > '.build_document_icon_tag($filetype, $tooltip_title).'< / a > ';
}
}
/**
* Builds an img html tag for the filetype
*
* @param string $type (file/folder)
* @param string $path
* @return string img html tag
*/
function build_document_icon_tag($type, $path)
{
$basename = basename($path);
if ($type == 'file')
{
$icon = choose_image($basename);
}
else
{
if($basename =='shared_folder')
{
$icon = 'shared_folder.gif';
$basename = get_lang('HelpSharedFolder');
}
elseif(strstr($basename, 'sf_user_'))
{
$userinfo=Database::get_user_info_from_id(substr($basename,8));
$image_path = UserManager::get_user_picture_path_by_id(substr($basename,8),'web',false, true);
if($image_path['file']=='unknown.jpg')
{
$icon = $image_path['file'];
}
else
{
$icon = '../upload/users/'.substr($basename,8).'/'.$image_path['file'];
}
$basename = $userinfo['lastname'].', '.$userinfo['firstname'];
}
else
{
if($basename =='audio' || $basename =='flash' || $basename =='images' || $basename =='video')
{
$basename = get_lang('HelpDefaultDirDocuments');
}
$icon = 'folder_document.gif';
}
}
return Display::return_icon($icon, $basename, array('hspace'=>'5', 'align' => 'middle', 'height'=> 22, 'width' => 22));
}
/**
* Creates the row of edit icons for a file/folder
*
* @param string $curdirpath current path (cfr open folder)
* @param string $type (file/folder)
* @param string $path dbase path of file/folder
* @param int $visibility (1/0)
* @param int $id dbase id of the document
* @return string html img tags with hyperlinks
*/
function build_edit_icons($curdirpath,$type,$path,$visibility,$id,$is_template,$is_read_only=0)
{
if(isset($_SESSION['_gid']))
{
$req_gid = '& gidReq='.$_SESSION['_gid'];
}
else
{
$req_gid = '';
}
//build URL-parameters for table-sorting
$sort_params = array();
if( isset($_GET['column']))
{
$sort_params[] = 'column='.$_GET['column'];
}
if( isset($_GET['page_nr']))
{
$sort_params[] = 'page_nr='.$_GET['page_nr'];
}
if( isset($_GET['per_page']))
{
$sort_params[] = 'per_page='.$_GET['per_page'];
}
if( isset($_GET['direction']))
{
$sort_params[] = 'direction='.$_GET['direction'];
}
$sort_params = implode('& ',$sort_params);
$visibility_icon = ($visibility==0)?'invisible':'visible';
$visibility_command = ($visibility==0)?'set_visible':'set_invisible';
$curdirpath = urlencode($curdirpath);
$modify_icons = '';
if ($is_read_only)
{
$modify_icons = Display::return_icon('edit_na.gif', get_lang('Modify'));
$modify_icons .= ' '.Display::return_icon('delete.gif', get_lang('Delete'));
$modify_icons .= ' '.Display::return_icon('deplacer_fichier_na.gif', get_lang('Move'));
$modify_icons .= ' '.Display::return_icon($visibility_icon.'_na.gif', get_lang('Visible'));
}
else
{
$modify_icons = '< a href = "edit_document.php?'.api_get_cidreq().'&curdirpath='.$curdirpath.'&file='.urlencode($path).$req_gid.'" > < img src = "../img/edit.gif" border = "0" title = "'.get_lang('Modify').'" alt = "" / > < / a > ';
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) {
$modify_icons .= ' < img src = "../img/delete_na.gif" border = "0" title = "'.get_lang('Delete').'" alt = "'.get_lang('Delete').'" / > < / a > ';
} else {
$modify_icons .= ' < a href = "'.api_get_self().'?'.api_get_cidreq().'&curdirpath='.$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 > ';
}
$modify_icons .= ' < a href = "'.api_get_self().'?'.api_get_cidreq().'&curdirpath='.$curdirpath.'&move='.urlencode($path).$req_gid.'" > < img src = "../img/deplacer_fichier.gif" border = "0" title = "'.get_lang('Move').'" alt = "" / > < / a > ';
$modify_icons .= ' < a href = "'.api_get_self().'?'.api_get_cidreq().'&curdirpath='.$curdirpath.'&'.$visibility_command.'='.$id.$req_gid.'&'.$sort_params.'" > < img src = "../img/'.$visibility_icon.'.gif" border = "0" title = "'.get_lang('Visible').'" alt = "" / > < / a > ';
}
if($type == 'file' & & pathinfo($path,PATHINFO_EXTENSION)=='html')
{
if($is_template==0)
{
$modify_icons .= ' < a href = "'.api_get_self().'?'.api_get_cidreq().'&curdirpath='.$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 > ';
}
else{
$modify_icons .= ' < a href = "'.api_get_self().'?'.api_get_cidreq().'&curdirpath='.$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 > ';
}
}
return $modify_icons;
}
function build_move_to_selector($folders,$curdirpath,$move_file,$group_dir='')
{
$form = '< form name = "move_to" action = "'.api_get_self().'" method = "post" > '."\n";
$form .= '< input type = "hidden" name = "move_file" value = "'.$move_file.'" / > '."\n";
$form .= get_lang('MoveTo').' < select name = "move_to" > '."\n";
//group documents cannot be uploaded in the root
if($group_dir=='')
{
if($curdirpath!='/')
{
$form .= '< option value = "/" > / ('.get_lang('HomeDirectory').')< / option > ';
}
if(is_array($folders))
{
foreach ($folders AS $folder)
{
//you cannot move a file to:
//1. current directory
//2. inside the folder you want to move
//3. inside a subfolder of the folder you want to move
if(($curdirpath!=$folder) & & ($folder!=$move_file) & & (substr($folder,0,strlen($move_file)+1) != $move_file.'/'))
{
$path_displayed = $folder;
// if document title is used, we have to display titles instead of real paths...
if(api_get_setting('use_document_title'))
{
$path_displayed = get_titles_of_path($folder);
}
$form .= '< option value = "'.$folder.'" > '.$path_displayed.'< / option > '."\n";
}
}
}
}
else
{
foreach ($folders AS $folder)
{
if(($curdirpath!=$folder) & & ($folder!=$move_file) & & (substr($folder,0,strlen($move_file)+1) != $move_file.'/'))//cannot copy dir into his own subdir
{
if(api_get_setting('use_document_title'))
{
$path_displayed = get_titles_of_path($folder);
}
$display_folder = substr($path_displayed,strlen($group_dir));
$display_folder = ($display_folder == '')?'/ ('.get_lang('HomeDirectory').')':$display_folder;
$form .= '< option value = "'.$folder.'" > '.$display_folder.'< / option > '."\n";
}
}
}
$form .= '< / select > '."\n";
$form .= '< button type = "submit" name = "move_file_submit" > '.get_lang('Ok').'< / button > '."\n";
$form .= '< / form > ';
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.'"';
$rs = api_sql_query($sql,__FILE__,__LINE__);
$tmp_title = '/'.Database::result($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');
}
}
?>
