<?php
/*
==============================================================================
Dokeos - elearning and course management software
Copyright (c) 2006-2008 Dokeos S.A.
Copyright (c) 2006 Ghent University (UGent)
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, 44 rue des palais, B-1030 Brussels, Belgium
Mail: info@dokeos.com
==============================================================================
*/
/**
* These files are a complete rework of the forum. The database structure is
* based on phpBB but all the code is rewritten. A lot of new functionalities
* are added:
* - forum categories and forums can be sorted up or down, locked or made invisible
* - consistent and integrated forum administration
* - forum options: are students allowed to edit their post?
* moderation of posts (approval)
* reply only forums (students cannot create new threads)
* multiple forums per group
* - sticky messages
* - new view option: nested view
* - quoting a message
*
* @Author Patrick Cool < patrick.cool @ UGent . be > , Ghent University
* @Copyright Ghent University
* @Copyright Patrick Cool
*
* @package dokeos.forum
*/
/**
**************************************************************************
* IMPORTANT NOTICE
* Please do not change anything is this code yet because there are still
* some significant code that need to happen and I do not have the time to
* merge files and test it all over again. So for the moment, please do not
* touch the code
* -- Patrick Cool < patrick.cool @ UGent . be >
**************************************************************************
*/
// name of the language file that needs to be included
$language_file = 'forum';
// including the global dokeos file
require ('../inc/global.inc.php');
// the section (tabs)
$this_section=SECTION_COURSES;
// notice for unauthorized people.
api_protect_course_script(true);
// including additional library scripts
require_once (api_get_path(LIBRARY_PATH).'formvalidator/FormValidator.class.php');
include_once (api_get_path(LIBRARY_PATH).'groupmanager.lib.php');
//require_once (api_get_path(LIBRARY_PATH).'resourcelinker.lib.php');
$nameTools=get_lang('Forum');
/*
-----------------------------------------------------------
Including necessary files
-----------------------------------------------------------
*/
include('forumconfig.inc.php');
include('forumfunction.inc.php');
//are we in a lp ?
$origin = '';
if(isset($_GET['origin']))
{
$origin = Security::remove_XSS($_GET['origin']);
}
/*
==============================================================================
MAIN DISPLAY SECTION
==============================================================================
*/
/*
-----------------------------------------------------------
Retrieving forum and forum categorie information
-----------------------------------------------------------
*/
// we are getting all the information about the current forum and forum category.
// note pcool: I tried to use only one sql statement (and function) for this
// but the problem is that the visibility of the forum AND forum cateogory are stored in the item_property table
$current_thread=get_thread_information($_GET['thread']); // note: this has to be validated that it is an existing thread
$current_forum=get_forum_information($current_thread['forum_id']); // note: this has to be validated that it is an existing forum.
$current_forum_category=get_forumcategory_information($current_forum['forum_category']);
$whatsnew_post_info=$_SESSION['whatsnew_post_info'];
/*
-----------------------------------------------------------
Header and Breadcrumbs
-----------------------------------------------------------
*/
if($origin=='learnpath')
{
include(api_get_path(INCLUDE_PATH).'reduced_header.inc.php');
} else
{
$interbreadcrumb[]=array("url" => "index.php?search=".Security::remove_XSS(urlencode($_GET['search'])),"name" => $nameTools);
$interbreadcrumb[]=array("url" => "viewforumcategory.php?forumcategory=".$current_forum_category['cat_id']."& search=".Security::remove_XSS(urlencode($_GET['search'])),"name" => prepare4display($current_forum_category['cat_title']));
$interbreadcrumb[]=array("url" => "viewforum.php?forum=".Security::remove_XSS($_GET['forum'])."& search=".Security::remove_XSS(urlencode($_GET['search'])),"name" => prepare4display($current_forum['forum_title']));
if ($message< >'PostDeletedSpecial')
{
$interbreadcrumb[]=array("url" => "viewthread.php?forum=".Security::remove_XSS($_GET['forum'])."& thread=".Security::remove_XSS($_GET['thread']),"name" => prepare4display($current_thread['thread_title']));
}
// the last element of the breadcrumb navigation is already set in interbreadcrumb, so give empty string
Display :: display_header('');
api_display_tool_title($nameTools);
}
//echo '< link href = "forumstyles.css" rel = "stylesheet" type = "text/css" / > ';
/*
-----------------------------------------------------------
Is the user allowed here?
-----------------------------------------------------------
*/
// if the user is not a course administrator and the forum is hidden
// then the user is not allowed here.
if (!api_is_allowed_to_edit(false,true) AND ($current_forum['visibility']==0 OR $current_thread['visibility']==0))
{
forum_not_allowed_here();
}
/*
-----------------------------------------------------------
Actions
-----------------------------------------------------------
*/
if ($_GET['action']=='delete' AND isset($_GET['content']) AND isset($_GET['id']) AND api_is_allowed_to_edit(false,true))
{
$message=delete_post($_GET['id']); // note: this has to be cleaned first
}
if (($_GET['action']=='invisible' OR $_GET['action']=='visible') AND isset($_GET['id']) AND api_is_allowed_to_edit(false,true))
{
$message=approve_post($_GET['id'],$_GET['action']); // note: this has to be cleaned first
}
if ($_GET['action']=='move' and isset($_GET['post']))
{
$message=move_post_form();
}
/*
-----------------------------------------------------------
Display the action messages
-----------------------------------------------------------
*/
if (isset($message))
{
Display :: display_confirmation_message(get_lang($message));
}
if ($message< >'PostDeletedSpecial') // in this case the first and only post of the thread is removed
{
// this increases the number of times the thread has been viewed
increase_thread_view($_GET['thread']);
/*
-----------------------------------------------------------
Action Links
-----------------------------------------------------------
*/
echo '< div style = "float:right;" > ';
$my_url = '< a href = "viewthread.php?'.api_get_cidreq().'&forum='.Security::remove_XSS($_GET['forum']).'&thread='.Security::remove_XSS($_GET['thread']).'&search='.Security::remove_XSS(urlencode($_GET['search']));
echo $my_url.'& view=flat& origin='.$origin.'">'.get_lang('FlatView').'< / a > | ';
echo $my_url.'& view=threaded& origin='.$origin.'">'.get_lang('ThreadedView').'< / a > | ';
echo $my_url.'& view=nested&origin='.$origin.'">'.get_lang('NestedView').'</a>';
$my_url = null;
echo '< / div > ';
// the reply to thread link should only appear when the forum_category is not locked AND the forum is not locked AND the thread is not locked.
// if one of the three levels is locked then the link should not be displayed
if ($current_forum_category['locked']==0 AND $current_forum['locked']==0 AND $current_thread['locked']==0 OR api_is_allowed_to_edit(false,true))
{
// The link should only appear when the user is logged in or when anonymous posts are allowed.
if ($_user['user_id'] OR ($current_forum['allow_anonymous']==1 AND !$_user['user_id']))
{
//reply link
echo '< a href = "reply.php?'.api_get_cidreq().'&forum='.Security::remove_XSS($_GET['forum']).'&thread='.Security::remove_XSS($_GET['thread']).'&action=replythread&origin='.$origin.'" > '.get_lang('ReplyToThread').'< / a > ';
//new thread link
if ((api_is_allowed_to_edit(false,true) & & !(api_is_course_coach() & & $current_forum['session_id']!=$_SESSION['id_session'])) OR ($current_forum['allow_new_threads']==1 AND isset($_user['user_id'])) OR ($current_forum['allow_new_threads']==1 AND !isset($_user['user_id']) AND $current_forum['allow_anonymous']==1))
{
if ($current_forum['locked'] < > 1 AND $current_forum['locked'] < > 1)
{
echo ' ';
echo '< a href = "newthread.php?'.api_get_cidreq().'&forum='.Security::remove_XSS($_GET['forum']).$origin_string.'" > '.Display::return_icon('forumthread_new.gif').' '.get_lang('NewTopic').'< / a > ';
}
else
{
echo get_lang('ForumLocked');
}
}
}
}
// note: this is to prevent that some browsers display the links over the table (FF does it but Opera doesn't)
echo ' ';
/*
-----------------------------------------------------------
Display Forum Category and the Forum information
-----------------------------------------------------------
*/
if (!$_SESSION['view'])
{
$viewmode=$current_forum['default_view'];
}
else
{
$viewmode=$_SESSION['view'];
}
$viewmode_whitelist=array('flat', 'threaded', 'nested');
if (isset($_GET['view']) and in_array($_GET['view'],$viewmode_whitelist))
{
$viewmode=$_GET['view'];
$_SESSION['view']=$viewmode;
}
if(empty($viewmode))
{
$viewmode = 'flat';
}
/*
-----------------------------------------------------------
Display Forum Category and the Forum information
-----------------------------------------------------------
*/
// we are getting all the information about the current forum and forum category.
// note pcool: I tried to use only one sql statement (and function) for this
// but the problem is that the visibility of the forum AND forum cateogory are stored in the item_property table
echo "< table class = \"data_table\" width = '100%' > \n";
// the thread
echo "\t< tr > \n\t\t< th style = \"padding-left:5px;\" align = \"left\" colspan = \"6\" > ";
echo '< span class = "forum_title" > '.prepare4display($current_thread['thread_title']).'< / span > < br / > ';
if($origin!='learnpath')
{
echo '< span class = "forum_low_description" > '.prepare4display($current_forum_category['cat_title']).' - ';
}
echo prepare4display($current_forum['forum_title']).'< br / > ';
echo "< / th > \n";
echo "\t< / tr > \n";
echo '< span > '.prepare4display($current_thread['thread_comment']).'< / span > ';
echo "< / table > ";
switch ($viewmode)
{
case 'flat':
include_once('viewthread_flat.inc.php');
break;
case 'threaded':
include_once('viewthread_threaded.inc.php');
break;
case 'nested':
include_once('viewthread_nested.inc.php');
break;
default:
include_once('viewthread_flat.inc.php');
break;
}
} // if ($message< >'PostDeletedSpecial') // in this case the first and only post of the thread is removed
/*
==============================================================================
FOOTER
==============================================================================
*/
if($origin!='learnpath')
Display :: display_footer();
?>
