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623 lines
20 KiB
623 lines
20 KiB
<?php
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/*
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DOKEOS - elearning and course management software
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For a full list of contributors, see documentation/credits.html
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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 "documentation/licence.html" more details.
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Contact:
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Dokeos
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Rue des Palais 44 Paleizenstraat
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B-1030 Brussels - Belgium
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Tel. +32 (2) 211 34 56
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*/
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/**
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* @package dokeos.main
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* @author Patrick Cool <patrick.cool@UGent.be>, Ghent University, Refactoring
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* @version $Id: index.php 12187 2007-04-30 04:28:25Z yannoo $
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* @todo check the different @todos in this page and really do them
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* @todo check if the news management works as expected
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*/
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// only this script should have this constant defined. This is used to activate the javascript that
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// gives the login name automatic focus in header.inc.html.
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/** @todo Couldn't this be done using the $HtmlHeadXtra array? */
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define('DOKEOS_HOMEPAGE', true);
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// the language file
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$language_file = array ('courses', 'index');
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/* Flag forcing the 'current course' reset, as we're not inside a course anymore */
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// maybe we should change this into an api function? an example: Coursemanager::unset();
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$cidReset = true;
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/*
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-----------------------------------------------------------
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Included libraries
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-----------------------------------------------------------
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*/
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/** @todo make all the library files consistent use filename.lib.php and not filename.lib.inc.php */
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require_once ('./main/inc/global.inc.php');
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include_once (api_get_path(LIBRARY_PATH).'course.lib.php');
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include_once (api_get_path(LIBRARY_PATH).'debug.lib.inc.php');
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include_once (api_get_path(LIBRARY_PATH).'events.lib.inc.php');
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include_once (api_get_path(LIBRARY_PATH).'system_announcements.lib.php');
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include_once (api_get_path(LIBRARY_PATH).'groupmanager.lib.php');
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include_once (api_get_path(LIBRARY_PATH).'formvalidator/FormValidator.class.php');
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$loginFailed = isset($_GET['loginFailed']) ? true : isset($loginFailed);
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// the section (for the tabs)
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$this_section = SECTION_CAMPUS;
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/*
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-----------------------------------------------------------
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Action Handling
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-----------------------------------------------------------
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*/
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/** @todo wouldn't it make more sense if this would be done in local.inc.php so that local.inc.php become the only place where authentication is done?
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* by doing this you could logout from any page instead of only from index.php. From the moment there is a logout=true in the url you will be logged out
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* this can be usefull when you are on an open course and you need to log in to edit something and you immediately want to check how anonymous users
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* will see it.
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*/
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if ($_GET['logout'])
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{
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logout();
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}
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/*
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-----------------------------------------------------------
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Table definitions
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-----------------------------------------------------------
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*/
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$main_course_table = Database :: get_main_table(TABLE_MAIN_COURSE);
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$main_category_table = Database :: get_main_table(TABLE_MAIN_CATEGORY);
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$track_login_table = Database :: get_statistic_table(TABLE_STATISTIC_TRACK_E_LOGIN);
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/*
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-----------------------------------------------------------
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Constants and CONFIGURATION parameters
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-----------------------------------------------------------
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*/
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/** @todo these configuration settings should move to the dokeos config settings */
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/** defines wether or not anonymous visitors can see a list of the courses on the Dokeos homepage that are open to the world */
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$_setting['display_courses_to_anonymous_users'] = 'true';
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/** defines weither empty course categories should appear in the list with the course categories */
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$_setting['show_empty_course_categories'] = 'true';
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/** defines weither the number of open courses has to appear after the course category (faculty) */
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/** remark: actually count are only for direct children */
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$_setting['show_number_of_courses'] = 'false';
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/** Show the back link on top of the tree */
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$_setting['show_back_link_on_top_of_tree'] = 'false';
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/** Show the course language if it is not the same as the platform lanugage */
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$_setting['show_different_course_language'] = 'true';
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/** @todo remove this piece of code because this is not used */
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if (isset ($_user['user_id']))
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{
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$nameTools = api_get_setting('siteName');
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}
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/*
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==============================================================================
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LOGIN
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==============================================================================
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*/
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/**
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* @todo This piece of code should probably move to local.inc.php where the actual login / logout procedure is handled.
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* @todo consider removing this piece of code because does nothing.
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*/
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if ($_GET["submitAuth"] == 1)
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{
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// nice lie!!!
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echo "Attempted breakin - sysadmins notified.";
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session_destroy();
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die();
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}
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/**
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* @todo This piece of code should probably move to local.inc.php where the actual login procedure is handled.
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* @todo check if this code is used. I think this code is never executed because after clicking the submit button
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* the code does the stuff in local.inc.php and then redirects to index.php or user_portal.php depending
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* on api_get_setting('page_after_login')
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*/
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if ($_POST["submitAuth"])
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{
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// the user is already authenticated, we now find the last login of the user.
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if (isset ($_user['user_id']))
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{
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$sql_last_login = "SELECT UNIX_TIMESTAMP(login_date)
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FROM $track_login_table
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WHERE login_user_id = '".$_user['user_id']."'
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ORDER BY login_date DESC LIMIT 1";
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$result_last_login = api_sql_query($sql_last_login, __FILE__, __LINE__);
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if (!$result_last_login)
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if (mysql_num_rows($result_last_login) > 0)
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{
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$user_last_login_datetime = mysql_fetch_array($result_last_login);
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$user_last_login_datetime = $user_last_login_datetime[0];
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api_session_register('user_last_login_datetime');
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}
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mysql_free_result($result_last_login);
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//event_login();
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if (api_is_platform_admin())
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{
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// decode all open event informations and fill the track_c_* tables
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include (api_get_path(LIBRARY_PATH)."stats.lib.inc.php");
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decodeOpenInfos();
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}
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}
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} // end login -- if($_POST["submitAuth"])
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else
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{
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// only if login form was not sent because if the form is sent the user was already on the page.
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event_open();
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}
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// the header
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Display :: display_header('', 'dokeos');
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/*
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==============================================================================
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MAIN CODE
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==============================================================================
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*/
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echo '<div class="maincontent" id="content">';
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// Plugins for loginpage_main AND campushomepage_main
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if (!api_get_user_id())
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{
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api_plugin('loginpage_main');
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}
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else
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{
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api_plugin('campushomepage_main');
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}
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// Including the page for the news
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$page_included = false;
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if (!empty ($_GET['include']) && !strstr($_GET['include'], '/') && !strstr($_GET['include'], '\\') && strstr($_GET['include'], '.html'))
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{
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include ('./home/'.$_GET['include']);
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$page_included = true;
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}
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else
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{
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if(!file_exists('home/home_news_'.$user_selected_language.'.html'))
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{
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$home_top_temp=file('home/home_top.html');
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$home_top_temp=implode('',$home_top_temp);
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$open=str_replace('{rel_path}',api_get_path(REL_PATH),$home_top_temp);
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echo $open;
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}
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else
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{
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include('home/home_top_'.$user_selected_language.'.html');
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}
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}
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// Display System announcements
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$announcement = $_GET['announcement'] ? $_GET['announcement'] : -1;
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$announcement = intval($announcement);
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SystemAnnouncementManager :: display_announcements(VISIBLE_GUEST, $announcement);
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// Display courses and category list
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if (!$page_included)
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{
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if (api_get_setting('display_courses_to_anonymous_users') == 'true')
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{
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echo '<div class="home_cats">';
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//display_anonymous_course_list();
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echo '</div>';
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}
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}
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echo '</div>';
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// display right menu: language form, login section + useful weblinks
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echo '<div class="menu" id="menu">';
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display_anonymous_right_menu();
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echo '</div>';
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/*
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==============================================================================
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FOOTER
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==============================================================================
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*/
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Display :: display_footer();
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/**
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* This function handles the logout and is called whenever there is a $_GET['logout']
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*
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* @author Patrick Cool <patrick.cool@UGent.be>, Ghent University
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*/
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function logout()
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{
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// variable initialisation
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$query_string='';
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if(!empty($_SESSION['user_language_choice']))
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{
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$query_string='?language='.$_SESSION['user_language_choice'];
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}
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// Database table definition
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$tbl_track_login = Database :: get_statistic_table(TABLE_STATISTIC_TRACK_E_LOGIN);
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// selecting the last login of the user
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$uid = intval($_GET['uid']);
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$sql_last_connection="SELECT login_id, login_date FROM $tbl_track_login WHERE login_user_id='$uid' ORDER BY login_date DESC LIMIT 0,1";
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$q_last_connection=mysql_query($sql_last_connection);
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$i_id_last_connection=mysql_result($q_last_connection,0,"login_id");
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$s_sql_update_logout_date="UPDATE $tbl_track_login SET logout_date=NOW() WHERE login_id='$i_id_last_connection'";
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api_sql_query($s_sql_update_logout_date);
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LoginDelete($uid, $_configuration['statistics_database']);
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api_session_destroy();
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header("Location: index.php$query_string");
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exit();
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}
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/**
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* This function checks if there are courses that are open to the world in the platform course categories (=faculties)
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*
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* @param unknown_type $category
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* @return boolean
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*/
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function category_has_open_courses($category)
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{
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$main_course_table = Database :: get_main_table(TABLE_MAIN_COURSE);
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$sql_query = "SELECT * FROM $main_course_table WHERE category_code='$category'";
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$sql_result = api_sql_query($sql_query, __FILE__, __LINE__);
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while ($course = mysql_fetch_array($sql_result))
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{
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if ($course['visibility'] == COURSE_VISIBILITY_OPEN_WORLD)
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{
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return true; //at least one open course
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}
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}
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return false;
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}
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function display_create_course_link()
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{
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echo "<li><a href=\"main/create_course/add_course.php\">".get_lang("CourseCreate")."</a></li>";
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}
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function display_edit_course_list_links()
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{
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echo "<li><a href=\"main/auth/courses.php\">".get_lang("CourseManagement")."</a></li>";
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}
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/**
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* Displays the right-hand menu for anonymous users:
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* login form, useful links, help section
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* Warning: function defines globals
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* @version 1.0.1
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* @todo does $_plugins need to be global?
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*/
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function display_anonymous_right_menu()
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{
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global $loginFailed, $_plugins, $_user;
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$platformLanguage = api_get_setting('platformLanguage');
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if ( !($_user['user_id']) ) // only display if the user isn't logged in
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{
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api_display_language_form();
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echo '<br />';
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display_login_form();
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if ($loginFailed)
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{
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handle_login_failed();
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}
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if (api_get_setting('allow_lostpassword') == 'true' OR api_get_setting('allow_registration') == 'true')
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{
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echo '<div class="menusection"><span class="menusectioncaption">'.get_lang('MenuUser').'</span><ul class="menulist">';
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if (get_setting('allow_registration') <> 'false')
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{
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echo '<li><a href="main/auth/inscription.php">'.get_lang('Reg').'</a></li>';
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}
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if (get_setting('allow_lostpassword') == 'true')
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{
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display_lost_password_info();
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}
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echo '</ul></div>';
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}
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if(api_number_of_plugins('loginpage_menu') > 0)
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{
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echo '<div class="note" style="background: none">';
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api_plugin('loginpage_menu');
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echo '</div>';
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}
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}
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/*** hide right menu "general" and other parts on anonymous right menu *****/
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echo "<div class=\"menusection\">", "<span class=\"menusectioncaption\">".get_lang("MenuGeneral")."</span>";
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echo "<ul class=\"menulist\">";
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$user_selected_language = api_get_interface_language();
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if (!isset ($user_selected_language))
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$user_selected_language = $platformLanguage;
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if(!file_exists('home/home_menu_'.$user_selected_language.'.html'))
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{
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include ('home/home_menu.html');
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}
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else
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{
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include('home/home_menu_'.$user_selected_language.'.html');
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}
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echo '</ul>';
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echo '</div>';
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if ($_user['user_id'] && api_number_of_plugins('campushomepage_menu') > 0)
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{
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echo '<div class="note" style="background: none">';
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api_plugin('campushomepage_menu');
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echo '</div>';
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}
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/**
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* User section
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*/
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if(isset($_SESSION['_user']['user_id']) && $_SESSION['_user']['user_id']!=0){
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echo "<div class=\"menusection\">";
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echo "<span class=\"menusectioncaption\">".get_lang("MenuUser")."</span>";
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echo "<ul class=\"menulist\">";
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$display_add_course_link = api_is_allowed_to_create_course() && ($_SESSION["studentview"] != "studentenview");
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if ($display_add_course_link)
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display_create_course_link();
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display_edit_course_list_links();
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$navigation=array();
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// Link to my profile
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$navigation['myprofile']['url'] = api_get_path(WEB_CODE_PATH).'auth/profile.php'.(!empty($_course['path']) ? '?coursePath='.$_course['path'].'&courseCode='.$_course['official_code'] : '' );
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$navigation['myprofile']['title'] = get_lang('ModifyProfile');
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// Link to my agenda
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$navigation['myagenda']['url'] = api_get_path(WEB_CODE_PATH).'calendar/myagenda.php'.(!empty($_course['path']) ? '?coursePath='.$_course['path'].'&courseCode='.$_course['official_code'] : '' );
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$navigation['myagenda']['title'] = get_lang('MyAgenda');
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foreach($navigation as $section => $navigation_info)
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{
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$current = ($section == $GLOBALS['this_section'] ? ' id="current"' : '');
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echo '<li'.$current.'>';
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echo '<a href="'.$navigation_info['url'].'" target="_top">'.$navigation_info['title'].'</a>';
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echo '</li>';
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echo "\n";
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}
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echo "</ul>";
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echo "</div>";
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}
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/**** use this comment to hide notice file section from right menu ****
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echo '<div class="note">';
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// includes for any files to be displayed below anonymous right menu
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if(!file_exists('home/home_notice_'.$user_selected_language.'.html'))
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{
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include ('home/home_notice.html');
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}
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else
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{
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include('home/home_notice_'.$user_selected_language.'.html');
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}
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echo '</div>';
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**** end of hide various right menu items on anonymous right menu ****/
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}
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/**
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* Reacts on a failed login:
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* displays an explanation with
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* a link to the registration form.
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*
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* @version 1.0.1
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*/
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function handle_login_failed()
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{
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switch ($_GET['error'])
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{
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case '':
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$message = get_lang("InvalidId");
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if (api_is_self_registration_allowed())
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{
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$message = get_lang("InvalidForSelfRegistration");
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}
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break;
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case 'account_expired':
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$message=get_lang('AccountExpired');
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break;
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case 'account_inactive':
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$message=get_lang('AccountInactive');
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break;
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case 'user_password_incorrect':
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$message=get_lang('InvalidId');
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break;
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}
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echo "<div id=\"login_fail\">".$message."</div>";
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}
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/**
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* Adds a form to let users login
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* @version 1.1
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*/
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function display_login_form()
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{
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$form = new FormValidator('formLogin');
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$form->addElement('text','login',get_lang('UserName'),array('size'=>15));
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$form->addElement('password','password',get_lang('Pass'),array('size'=>15));
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$form->addElement('submit','submitAuth',get_lang('Ok'));
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$renderer =& $form->defaultRenderer();
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$renderer->setElementTemplate('<div><label>{label}</label></div><div>{element}</div>');
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$form->display();
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}
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/**
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* Displays a link to the lost password section
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*/
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function display_lost_password_info()
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{
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echo "<li><a href=\"main/auth/lostPassword.php\">".get_lang("LostPassword")."</a></li>";
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}
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/**
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* Display list of courses in a category.
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* (for anonymous users)
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*
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* @version 1.1
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|
* @author Patrick Cool <patrick.cool@UGent.be>, Ghent University - refactoring and code cleaning
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|
*/
|
|
function display_anonymous_course_list()
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{
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//init
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|
$web_course_path = api_get_path(WEB_COURSE_PATH);
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$category = $_GET["category"];
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// Database table definitions
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|
$main_course_table = Database :: get_main_table(TABLE_MAIN_COURSE);
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$main_category_table = Database :: get_main_table(TABLE_MAIN_CATEGORY);
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$platformLanguage = api_get_setting('platformLanguage');
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//get list of courses in category $category
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$sql_get_course_list = "SELECT * FROM $main_course_table cours
|
|
WHERE category_code = '".mysql_real_escape_string($_GET["category"])."'
|
|
ORDER BY UPPER(visual_code)";
|
|
//removed: AND cours.visibility='".COURSE_VISIBILITY_OPEN_WORLD."'
|
|
$sql_result_courses = api_sql_query($sql_get_course_list, __FILE__, __LINE__);
|
|
|
|
while ($course_result = mysql_fetch_array($sql_result_courses))
|
|
{
|
|
$course_list[] = $course_result;
|
|
}
|
|
|
|
$sqlGetSubCatList = "
|
|
SELECT t1.name,t1.code,t1.parent_id,t1.children_count,COUNT(DISTINCT t3.code) AS nbCourse
|
|
FROM $main_category_table t1
|
|
LEFT JOIN $main_category_table t2 ON t1.code=t2.parent_id
|
|
LEFT JOIN $main_course_table t3 ON (t3.category_code=t1.code AND t3.visibility='".COURSE_VISIBILITY_OPEN_WORLD."')
|
|
WHERE t1.parent_id ". (empty ($category) ? "IS NULL" : "='$category'")."
|
|
GROUP BY t1.name,t1.code,t1.parent_id,t1.children_count ORDER BY t1.tree_pos";
|
|
$resCats = api_sql_query($sqlGetSubCatList, __FILE__, __LINE__);
|
|
$thereIsSubCat = FALSE;
|
|
if (mysql_num_rows($resCats) > 0)
|
|
{
|
|
$htmlListCat = "<h4 style=\"margin-top: 0px;\">".get_lang("CatList")."</h4>"."<ul>";
|
|
while ($catLine = mysql_fetch_array($resCats))
|
|
{
|
|
if ($catLine['code'] != $category)
|
|
{
|
|
$htmlListCat .= "<li>";
|
|
|
|
$category_has_open_courses = category_has_open_courses($catLine['code']);
|
|
if ($category_has_open_courses)
|
|
{
|
|
//the category contains courses accessible to anonymous visitors
|
|
$htmlListCat .= "<a href=\"".api_get_self()."?category=".$catLine['code']."\">".$catLine['name']."</a>";
|
|
if (get_setting('show_number_of_courses') == 'true')
|
|
{
|
|
$htmlListCat .= " (".$catLine['nbCourse']." ".get_lang("Courses").")";
|
|
}
|
|
}
|
|
elseif ($catLine['children_count'] > 0)
|
|
{
|
|
//the category has children, subcategories
|
|
$htmlListCat .= "<a href=\"".api_get_self()."?category=".$catLine['code']."\">".$catLine['name']."</a>";
|
|
}
|
|
/************************************************************************
|
|
end changed code to eliminate the (0 courses) after empty categories
|
|
************************************************************************/
|
|
elseif (get_setting('show_empty_course_categories') == 'true')
|
|
{
|
|
$htmlListCat .= $catLine['name'];
|
|
}
|
|
$htmlListCat .= "</li>\n";
|
|
$thereIsSubCat = true;
|
|
}
|
|
else
|
|
{
|
|
$htmlTitre = "<p>";
|
|
if ($_setting['show_back_link_on_top_of_tree'] == 'true')
|
|
{
|
|
$htmlTitre .= "<a href=\"".api_get_self()."\">"."<< ".get_lang("BackToHomePage")."</a>";
|
|
}
|
|
if (!is_null($catLine['parent_id']) || ($_setting['show_back_link_on_top_of_tree'] <> 'true' && !is_null($catLine['code'])))
|
|
{
|
|
$htmlTitre .= "<a href=\"".api_get_self()."?category=".$catLine['parent_id']."\">"."<< ".get_lang("Up")."</a>";
|
|
}
|
|
$htmlTitre .= "</p>\n";
|
|
if ($category != "" && !is_null($catLine['code']))
|
|
{
|
|
$htmlTitre .= "<h3>".$catLine['name']."</h3>\n";
|
|
}
|
|
else
|
|
{
|
|
$htmlTitre .= "<h3>".get_lang("Categories")."</h3>\n";
|
|
}
|
|
}
|
|
}
|
|
$htmlListCat .= "</ul>\n";
|
|
}
|
|
echo $htmlTitre;
|
|
if ($thereIsSubCat)
|
|
{
|
|
echo $htmlListCat;
|
|
}
|
|
while ($categoryName = mysql_fetch_array($resCats))
|
|
{
|
|
echo "<h3>", $categoryName['name'], "</h3>\n";
|
|
}
|
|
$numrows = mysql_num_rows($sql_result_courses);
|
|
if ($numrows > 0)
|
|
{
|
|
if ($thereIsSubCat)
|
|
{
|
|
echo "<hr size=\"1\" noshade=\"noshade\">\n";
|
|
}
|
|
echo "<h4 style=\"margin-top: 0px;\">", get_lang("CourseList"), "</h4>\n", "<ul>\n";
|
|
while ($course = mysql_fetch_array($sql_result_courses))
|
|
{
|
|
echo "<li>\n";
|
|
echo "<a href=\"".$web_course_path.$course['directory'], "/\">", $course['title'], "</a>";
|
|
echo "<br/>", $course['visual_code'], " - ", $course['tutor_name'];
|
|
if ($_setting['show_different_course_language'] == 'true' && $course['course_language'] <> api_get_setting('platformLanguage'))
|
|
{
|
|
echo ' - '.$course['course_language'];
|
|
}
|
|
echo "</li>\n";
|
|
}
|
|
echo "</ul>\n";
|
|
}
|
|
else
|
|
{
|
|
// echo "<blockquote>",get_lang('_No_course_publicly_available'),"</blockquote>\n";
|
|
}
|
|
if ($category != "")
|
|
{
|
|
echo "<p>", "<a href=\"".api_get_self()."\"><b><<</b> ", get_lang("BackToHomePage"), "</a>", "</p>\n";
|
|
}
|
|
}
|
|
?>
|