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- <?php
- /* For licensing terms, see /license.txt */
- /**
- * @package chamilo.main
- * @author Patrick Cool <patrick.cool@UGent.be>, Ghent University, Refactoring
- * @todo check the different @todos in this page and really do them
- * @todo check if the news management works as expected
- */
- // Only this script should have this constant defined. This is used to activate the javascript that
- // gives the login name automatic focus in header.inc.html.
- /** @todo Couldn't this be done using the $HtmlHeadXtra array? */
- define('CHAMILO_HOMEPAGE', true);
- $language_file = array('courses', 'index');
- /* Flag forcing the 'current course' reset, as we're not inside a course anymore. */
- // Maybe we should change this into an api function? an example: Coursemanager::unset();
- $cidReset = true;
- /* Included libraries */
- /** @todo Make all the library files consistent, use filename.lib.php and not filename.lib.inc.php. */
- require_once 'main/inc/global.inc.php';
- require_once api_get_path(LIBRARY_PATH).'course.lib.php';
- require_once api_get_path(LIBRARY_PATH).'events.lib.inc.php';
- require_once api_get_path(LIBRARY_PATH).'system_announcements.lib.php';
- require_once api_get_path(LIBRARY_PATH).'groupmanager.lib.php';
- require_once api_get_path(LIBRARY_PATH).'formvalidator/FormValidator.class.php';
- require_once 'main/chat/chat_functions.lib.php';
- $loginFailed = isset($_GET['loginFailed']) ? true : isset($loginFailed);
- $setting_show_also_closed_courses = api_get_setting('show_closed_courses') == 'true';
- // The section (for the tabs).
- $this_section = SECTION_CAMPUS;
- unset($_SESSION['this_section']);//for hmtl editor repository
- /* Action Handling */
- /** @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?
- * 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
- * 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
- * will see it.
- */
- $my_user_id = api_get_user_id();
- if (!empty($_GET['logout'])) {
- logout();
- }
- /* Table definitions */
- $main_course_table = Database :: get_main_table(TABLE_MAIN_COURSE);
- $main_category_table = Database :: get_main_table(TABLE_MAIN_CATEGORY);
- $track_login_table = Database :: get_statistic_table(TABLE_STATISTIC_TRACK_E_LOGIN);
- /* Constants and CONFIGURATION parameters */
- /** @todo these configuration settings should move to the Chamilo config settings. */
- /** Defines wether or not anonymous visitors can see a list of the courses on the Chamilo homepage that are open to the world. */
- $_setting['display_courses_to_anonymous_users'] = 'true';
- /** @todo Remove this piece of code because this is not used. */
- if (isset($_user['user_id'])) {
- $nameTools = api_get_setting('siteName');
- }
- /* LOGIN */
- /**
- * @todo This piece of code should probably move to local.inc.php where the actual login / logout procedure is handled.
- * @todo Consider removing this piece of code because does nothing.
- */
- if (isset($_GET['submitAuth']) && $_GET['submitAuth'] == 1) {
- // nice lie!!!
- echo 'Attempted breakin - sysadmins notified.';
- session_destroy();
- die();
- }
- // Delete session neccesary for legal terms
- if (api_get_setting('allow_terms_conditions') == 'true') {
- unset($_SESSION['update_term_and_condition']);
- unset($_SESSION['info_current_user']);
- }
- /**
- * @todo This piece of code should probably move to local.inc.php where the actual login procedure is handled.
- * @todo Check if this code is used. I think this code is never executed because after clicking the submit button
- * the code does the stuff in local.inc.php and then redirects to index.php or user_portal.php depending
- * on api_get_setting('page_after_login').
- */
- if (!empty($_POST['submitAuth'])) {
- // The user has been already authenticated, we are now to find the last login of the user.
- if (isset ($_user['user_id'])) {
- $sql_last_login = "SELECT UNIX_TIMESTAMP(login_date)
- FROM $track_login_table
- WHERE login_user_id = '".$_user['user_id']."'
- ORDER BY login_date DESC LIMIT 1";
- $result_last_login = Database::query($sql_last_login);
- if (!$result_last_login) {
- if (Database::num_rows($result_last_login) > 0) {
- $user_last_login_datetime = Database::fetch_array($result_last_login);
- $user_last_login_datetime = $user_last_login_datetime[0];
- api_session_register('user_last_login_datetime');
- }
- }
- Database::free_result($result_last_login);
- //event_login();
- if (api_is_platform_admin()) {
- // decode all open event informations and fill the track_c_* tables
- include api_get_path(LIBRARY_PATH).'stats.lib.inc.php';
- decodeOpenInfos();
- }
- }
- } // End login -- if ($_POST['submitAuth'])
- else {
- // Only if login form was not sent because if the form is sent the user was already on the page.
- event_open();
- }
- // The header.
- /*$header_title = get_lang('Homepage');
- //$sitename = api_get_setting('siteName');
- if (!api_get_user_id()) {
- $header_title = null;
- }*/
- $header_title = null;
- if (!api_is_anonymous()) {
- $header_title = " ";
- }
- Display::display_header($header_title);
- /* MAIN CODE */
- echo '<div class="maincontent" id="content">';
- // Plugins for loginpage_main AND campushomepage_main.
- if (!api_get_user_id()) {
- api_plugin('loginpage_main');
- } else {
- api_plugin('campushomepage_main');
- }
- $home = 'home/';
- if ($_configuration['multiple_access_urls']) {
- $access_url_id = api_get_current_access_url_id();
- if ($access_url_id != -1){
- $url_info = api_get_access_url($access_url_id);
- $url = api_remove_trailing_slash(preg_replace('/https?:\/\//i', '', $url_info['url']));
- $clean_url = replace_dangerous_char($url);
- $clean_url = str_replace('/', '-', $clean_url);
- $clean_url .= '/';
- $home_old = 'home/';
- $home = 'home/'.$clean_url;
- }
- }
- // Including the page for the news
- $page_included = false;
- if (!empty($_GET['include']) && preg_match('/^[a-zA-Z0-9_-]*\.html$/', $_GET['include'])) {
- $open = @(string)file_get_contents(api_get_path(SYS_PATH).$home.$_GET['include']);
- $open = api_to_system_encoding($open, api_detect_encoding(strip_tags($open)));
- echo $open;
- $page_included = true;
- } else {
- if (!empty($_SESSION['user_language_choice'])) {
- $user_selected_language = $_SESSION['user_language_choice'];
- } elseif (!empty($_SESSION['_user']['language'])) {
- $user_selected_language = $_SESSION['_user']['language'];
- } else {
- $user_selected_language = api_get_setting('platformLanguage');
- }
- if (!file_exists($home.'home_news_'.$user_selected_language.'.html')) {
- if (file_exists($home.'home_top.html')) {
- $home_top_temp = file($home.'home_top.html');
- } else {
- $home_top_temp = file($home_old.'home_top.html');
- }
- $home_top_temp = implode('', $home_top_temp);
- } else {
- if (file_exists($home.'home_top_'.$user_selected_language.'.html')) {
- $home_top_temp = file_get_contents($home.'home_top_'.$user_selected_language.'.html');
- } else {
- $home_top_temp = file_get_contents($home.'home_top.html');
- }
- }
- if (trim($home_top_temp) == '' && api_is_platform_admin()) {
- $home_top_temp = get_lang('PortalHomepageDefaultIntroduction');
- }
- $open = str_replace('{rel_path}', api_get_path(REL_PATH), $home_top_temp);
- $open = api_to_system_encoding($open, api_detect_encoding(strip_tags($open)));
- echo $open;
- }
- // Display courses and category list.
- if (!$page_included) {
- // Display System announcements
- $announcement = isset($_GET['announcement']) ? $_GET['announcement'] : -1;
- $announcement = intval($announcement);
- if (isset($_user['user_id'])) {
- $visibility = api_is_allowed_to_create_course() ? VISIBLE_TEACHER : VISIBLE_STUDENT;
- SystemAnnouncementManager :: display_announcements($visibility, $announcement);
- } else {
- SystemAnnouncementManager :: display_announcements(VISIBLE_GUEST, $announcement);
- }
- if (api_get_setting('display_categories_on_homepage') == 'true') {
- echo '<div class="home_cats">';
- display_anonymous_course_list();
- echo '</div>';
- }
- }
- echo '</div>';
- echo '<div id="menu-wrapper">';
- if (!api_is_anonymous()) {
- // @todo move all this in a class/function
-
- //Always show the user image
- $img_array = UserManager::get_user_picture_path_by_id(api_get_user_id(), 'web', true, true);
- $no_image = false;
- if ($img_array['file'] == 'unknown.jpg') {
- $no_image = true;
- }
- $img_array = UserManager::get_picture_user(api_get_user_id(), $img_array['file'], 50, USER_IMAGE_SIZE_MEDIUM, ' width="90" height="90" ');
-
- $profile_content .='<div id="social_widget">';
-
- $profile_content .= '<div id="social_widget_image">';
- if (api_get_setting('allow_social_tool') == 'true') {
- if (!$no_image) {
- $profile_content .='<a href="'.api_get_path(WEB_PATH).'main/social/home.php"><img src="'.$img_array['file'].'" '.$img_array['style'].' border="1"></a>';
- } else {
- $profile_content .='<a href="'.api_get_path(WEB_PATH).'main/auth/profile.php"><img title="'.get_lang('EditProfile').'" src="'.$img_array['file'].'" '.$img_array['style'].' border="1"></a>';
- }
- } else {
- $profile_content .='<a href="'.api_get_path(WEB_PATH).'main/auth/profile.php"><img title="'.get_lang('EditProfile').'" src="'.$img_array['file'].'" '.$img_array['style'].' border="1"></a>';
- }
- $profile_content .= ' </div></div>';
-
- if (api_get_setting('allow_message_tool') == 'true') {
-
- require_once api_get_path(LIBRARY_PATH).'message.lib.php';
- require_once api_get_path(LIBRARY_PATH).'social.lib.php';
- require_once api_get_path(LIBRARY_PATH).'group_portal_manager.lib.php';
-
- // New messages.
- $number_of_new_messages = MessageManager::get_new_messages();
- // New contact invitations.
- $number_of_new_messages_of_friend = SocialManager::get_message_number_invitation_by_user_id(api_get_user_id());
-
- // New group invitations sent by a moderator.
- $group_pending_invitations = GroupPortalManager::get_groups_by_user(api_get_user_id(), GROUP_USER_PERMISSION_PENDING_INVITATION, false);
- $group_pending_invitations = count($group_pending_invitations);
-
- $total_invitations = $number_of_new_messages_of_friend + $group_pending_invitations;
- $cant_msg = '';
- if ($number_of_new_messages > 0) {
- $cant_msg = ' ('.$number_of_new_messages.')';
- }
- $profile_content .= '<div class="clear"></div>';
- $profile_content .= '<div class="message-content"><ul class="menulist">';
- $link = '';
- if (api_get_setting('allow_social_tool') == 'true') {
- $link = '?f=social';
- }
- $profile_content .= '<li><a href="'.api_get_path(WEB_PATH).'main/messages/inbox.php'.$link.'" class="message-body">'.get_lang('Inbox').$cant_msg.' </a></li>';
- $profile_content .= '<li><a href="'.api_get_path(WEB_PATH).'main/messages/new_message.php'.$link.'" class="message-body">'.get_lang('Compose').' </a></li>';
-
- if (api_get_setting('allow_social_tool') == 'true') {
- if ($total_invitations == 0) {
- $total_invitations = '';
- } else {
- $total_invitations = ' ('.$total_invitations.')';
- }
- $profile_content .= '<li><a href="'.api_get_path(WEB_PATH).'main/social/invitations.php" class="message-body">'.get_lang('PendingInvitations').' '.$total_invitations.' </a></li>';
- }
- $profile_content .= '</ul>';
- $profile_content .= '</div>';
- }
-
- //Profile content
- echo show_right_block(get_lang('Profile'), $profile_content);
- }
- // Display right menu: language form, login section + useful weblinks.
- display_anonymous_right_menu();
- echo '</div>';
- /* Footer */
- Display :: display_footer();
- /* Functions */
- /**
- * This function handles the logout and is called whenever there is a $_GET['logout']
- *
- * @author Patrick Cool <patrick.cool@UGent.be>, Ghent University
- */
- function logout() {
- global $_configuration, $extAuthSource;
- // Variable initialisation.
- $query_string = '';
- if (!empty($_SESSION['user_language_choice'])) {
- $query_string = '?language='.$_SESSION['user_language_choice'];
- }
- // Database table definition.
- $tbl_track_login = Database :: get_statistic_table(TABLE_STATISTIC_TRACK_E_LOGIN);
- // Selecting the last login of the user.
- $uid = intval($_GET['uid']);
- $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";
- $q_last_connection = Database::query($sql_last_connection);
- if (Database::num_rows($q_last_connection) > 0) {
- $i_id_last_connection = Database::result($q_last_connection, 0, 'login_id');
- }
- if (!isset($_SESSION['login_as'])) {
- $current_date = date('Y-m-d H:i:s', time());
- $s_sql_update_logout_date = "UPDATE $tbl_track_login SET logout_date='".$current_date."' WHERE login_id='$i_id_last_connection'";
- Database::query($s_sql_update_logout_date);
- }
- LoginDelete($uid); // From inc/lib/online.inc.php - removes the "online" status.
- // The following code enables the use of an external logout function.
- // Example: define a $extAuthSource['ldap']['logout'] = 'file.php' in configuration.php.
- // Then a function called ldap_logout() inside that file
- // (using *authent_name*_logout as the function name) and the following code
- // will find and execute it.
- $uinfo = api_get_user_info($uid);
- if (($uinfo['auth_source'] != PLATFORM_AUTH_SOURCE) && is_array($extAuthSource)) {
- if (is_array($extAuthSource[$uinfo['auth_source']])) {
- $subarray = $extAuthSource[$uinfo['auth_source']];
- if (!empty($subarray['logout']) && file_exists($subarray['logout'])) {
- include_once ($subarray['logout']);
- $logout_function = $uinfo['auth_source'].'_logout';
- if (function_exists($logout_function)) {
- $logout_function($uinfo);
- }
- }
- }
- }
- exit_of_chat($uid);
- api_session_destroy();
- header("Location: index.php$query_string");
- exit();
- }
- /**
- * This function checks if there are courses that are open to the world in the platform course categories (=faculties)
- *
- * @param unknown_type $category
- * @return boolean
- */
- function category_has_open_courses($category) {
- global $setting_show_also_closed_courses;
- $user_identified = (api_get_user_id() > 0 && !api_is_anonymous());
- $main_course_table = Database :: get_main_table(TABLE_MAIN_COURSE);
- $sql_query = "SELECT * FROM $main_course_table WHERE category_code='$category'";
- $sql_result = Database::query($sql_query);
- while ($course = Database::fetch_array($sql_result)) {
- if (!$setting_show_also_closed_courses) {
- if ((api_get_user_id() > 0
- && $course['visibility'] == COURSE_VISIBILITY_OPEN_PLATFORM)
- || ($course['visibility'] == COURSE_VISIBILITY_OPEN_WORLD)) {
- return true; //at least one open course
- }
- } else {
- if (isset($course['visibility'])) {
- return true; // At least one course (it does not matter weither it's open or not because $setting_show_also_closed_courses = true).
- }
- }
- }
- return false;
- }
- /**
- * Display create course link
- */
- function display_create_course_link() {
- echo '<li><a href="main/create_course/add_course.php">'.
- (api_get_setting('course_validation') == 'true' ? get_lang('CreateCourseRequest') : get_lang('CourseCreate')).'</a></li>';
- }
- /**
- * Display edit course list links
- */
- function display_edit_course_list_links() {
- echo '<li><a href="main/auth/courses.php">'.get_lang('CourseManagement').'</a></li>';
- }
- /**
- * Display dashboard link
- */
- function display_dashboard_link() {
- echo '<li><a href="main/dashboard/index.php">'.get_lang('Dashboard').'</a></li>';
- }
- /**
- * Displays the right-hand menu for anonymous users:
- * login form, useful links, help section
- * Warning: function defines globals
- * @version 1.0.1
- * @todo does $_plugins need to be global?
- */
- function display_anonymous_right_menu() {
- global $loginFailed, $_plugins, $_user, $menu_navigation, $home, $home_old;
- $platformLanguage = api_get_setting('platformLanguage');
- $sys_path = api_get_path(SYS_PATH);
- $user_selected_language = api_get_interface_language();
-
- echo '<div class="menu" id="menu">';
- if (!($_user['user_id']) || api_is_anonymous($_user['user_id']) ) { // Only display if the user isn't logged in.
- api_display_language_form(true);
- echo '<br />';
- display_login_form();
- if ($loginFailed) {
- echo '<br />';
- handle_login_failed();
- }
- if (api_get_setting('allow_lostpassword') == 'true' || api_get_setting('allow_registration') == 'true') {
- echo '<div class="menusection"><span class="menusectioncaption">'.get_lang('MenuUser').'</span><ul class="menulist">';
- if (api_get_setting('allow_registration') != 'false') {
- echo '<li><a href="main/auth/inscription.php">'.get_lang('Reg').'</a></li>';
- }
- if (api_get_setting('allow_lostpassword') == 'true') {
- display_lost_password_info();
- }
- echo '</ul></div>';
- }
- if (api_number_of_plugins('loginpage_menu') > 0) {
- echo '<div class="note" style="background: none">';
- api_plugin('loginpage_menu');
- echo '</div>';
- }
- }
- // My Account section.
- if (isset($_SESSION['_user']['user_id']) && $_SESSION['_user']['user_id'] != 0) {
- // tabs that are deactivated are added here
- $show_menu = false;
- $show_create_link = false;
- $show_course_link = false;
- $display_add_course_link = api_is_allowed_to_create_course() && ($_SESSION['studentview'] != 'studentenview');
- if ($display_add_course_link) {
- //display_create_course_link();
- $show_menu = true;
- $show_create_link = true;
- }
- if (api_is_platform_admin() || api_is_course_admin() || api_is_allowed_to_create_course()) {
- $show_menu = true;
- $show_course_link = true;
- } else {
- if (api_get_setting('allow_students_to_browse_courses') == 'true') {
- $show_menu = true;
- $show_course_link = true;
- }
- }
- if ($show_menu) {
- echo '<div class="menusection">';
- echo '<span class="menusectioncaption">'.get_lang('MenuUser').'</span>';
- echo '<ul class="menulist">';
- if ($show_create_link) {
- display_create_course_link();
- }
- if ($show_course_link) {
- if (!api_is_drh() && !api_is_session_admin()) {
- display_edit_course_list_links();
- } else {
- display_dashboard_link();
- }
- }
- echo '</ul></div>';
- }
- }
- echo '</div>';
-
- // Notice
- $home_notice = @(string)file_get_contents($sys_path.$home.'home_notice_'.$user_selected_language.'.html');
- if (empty($home_notice)) {
- $home_notice = @(string)file_get_contents($sys_path.$home.'home_notice.html');
- }
-
- if (!empty($home_notice)) {
- $home_notice = api_to_system_encoding($home_notice, api_detect_encoding(strip_tags($home_notice)));
- echo show_right_block('', $home_notice, 'note');
- }
-
-
-
- if (isset($_SESSION['_user']['user_id']) && $_SESSION['_user']['user_id'] != 0) {
- // Deleting the myprofile link.
- if (api_get_setting('allow_social_tool') == 'true') {
- unset($menu_navigation['myprofile']);
- }
- if (!empty($menu_navigation)) {
- $content = '<ul class="menulist">';
- foreach ($menu_navigation as $section => $navigation_info) {
- $current = $section == $GLOBALS['this_section'] ? ' id="current"' : '';
- $content .='<li'.$current.'><a href="'.$navigation_info['url'].'" target="_self">'.$navigation_info['title'].'</a></li>';
- }
- $content .= '</ul>';
- echo show_right_block(get_lang('MainNavigation'), $content);
- }
- }
- // Help section.
- /* Hide right menu "general" and other parts on anonymous right menu. */
-
- if (!isset($user_selected_language)) {
- $user_selected_language = $platformLanguage;
- }
-
- $home_menu = @(string)file_get_contents($sys_path.$home.'home_menu_'.$user_selected_language.'.html');
- if (!empty($home_menu)) {
- $home_menu_content .= '<ul class="menulist">';
- $home_menu_content .= api_to_system_encoding($home_menu, api_detect_encoding(strip_tags($home_menu)));
- $home_menu_content .= '</ul>';
- echo show_right_block(get_lang('MenuGeneral'), $home_menu_content);
- }
- //Plugin
-
- if ($_user['user_id'] && api_number_of_plugins('campushomepage_menu') > 0) {
- ob_start();
- api_plugin('campushomepage_menu');
- $plugin_content = ob_get_contents();
- ob_end_clean();
- echo show_right_block('', $plugin_content);
- }
- }
- /**
- * Reacts on a failed login:
- * Displays an explanation with a link to the registration form.
- *
- * @version 1.0.1
- */
- function handle_login_failed() {
- if (!isset($_GET['error'])) {
- $message = get_lang('InvalidId');
- if (api_is_self_registration_allowed()) {
- $message = get_lang('InvalidForSelfRegistration');
- }
- } else {
- switch ($_GET['error']) {
- case '':
- $message = get_lang('InvalidId');
- if (api_is_self_registration_allowed()) {
- $message = get_lang('InvalidForSelfRegistration');
- }
- break;
- case 'account_expired':
- $message = get_lang('AccountExpired');
- break;
- case 'account_inactive':
- $message = get_lang('AccountInactive');
- break;
- case 'user_password_incorrect':
- $message = get_lang('InvalidId');
- break;
- case 'access_url_inactive':
- $message = get_lang('AccountURLInactive');
- break;
- }
- }
- echo '<div id="login_fail">'.$message.'</div>';
- }
- /**
- * Adds a form to let users login
- * @version 1.1
- */
- function display_login_form() {
- $form = new FormValidator('formLogin');
- $form->addElement('text', 'login', get_lang('UserName'), array('size' => 17));
- $form->addElement('password', 'password', get_lang('Pass'), array('size' => 17));
- $form->addElement('style_submit_button','submitAuth', get_lang('LoginEnter'), array('class' => 'login'));
- $renderer =& $form->defaultRenderer();
- $renderer->setElementTemplate('<div><label>{label}</label></div><div>{element}</div>');
- $form->display();
- if (api_get_setting('openid_authentication') == 'true') {
- include_once 'main/auth/openid/login.php';
- echo '<div>'.openid_form().'</div>';
- }
- }
- /**
- * Displays a link to the lost password section
- */
- function display_lost_password_info() {
- echo '<li><a href="main/auth/lostPassword.php">'.get_lang('LostPassword').'</a></li>';
- }
- /**
- * Display list of courses in a category.
- * (for anonymous users)
- *
- * @version 1.1
- * @author Patrick Cool <patrick.cool@UGent.be>, Ghent University - refactoring and code cleaning
- */
- function display_anonymous_course_list() {
- $ctok = $_SESSION['sec_token'];
- $stok = Security::get_token();
- // Initialization.
- $user_identified = (api_get_user_id() > 0 && !api_is_anonymous());
- $web_course_path = api_get_path(WEB_COURSE_PATH);
- $category = Database::escape_string($_GET['category']);
- global $setting_show_also_closed_courses;
- // Database table definitions.
- $main_course_table = Database :: get_main_table(TABLE_MAIN_COURSE);
- $main_category_table = Database :: get_main_table(TABLE_MAIN_CATEGORY);
- $platformLanguage = api_get_setting('platformLanguage');
- // Get list of courses in category $category.
- $sql_get_course_list = "SELECT * FROM $main_course_table cours
- WHERE category_code = '".Database::escape_string($_GET['category'])."'
- ORDER BY title, UPPER(visual_code)";
- // Showing only the courses of the current access_url_id.
- global $_configuration;
- if ($_configuration['multiple_access_urls']) {
- $url_access_id = api_get_current_access_url_id();
- if ($url_access_id != -1) {
- $tbl_url_rel_course = Database::get_main_table(TABLE_MAIN_ACCESS_URL_REL_COURSE);
- $sql_get_course_list = "SELECT * FROM $main_course_table as course INNER JOIN $tbl_url_rel_course as url_rel_course
- ON (url_rel_course.course_code=course.code)
- WHERE access_url_id = $url_access_id AND category_code = '".Database::escape_string($_GET['category'])."' ORDER BY title, UPPER(visual_code)";
- }
- }
- // Removed: AND cours.visibility='".COURSE_VISIBILITY_OPEN_WORLD."'
- $sql_result_courses = Database::query($sql_get_course_list);
- while ($course_result = Database::fetch_array($sql_result_courses)) {
- $course_list[] = $course_result;
- }
- $platform_visible_courses = '';
- // $setting_show_also_closed_courses
- if ($user_identified) {
- if ($setting_show_also_closed_courses) {
- $platform_visible_courses = '';
- } else {
- $platform_visible_courses = " AND (t3.visibility='".COURSE_VISIBILITY_OPEN_WORLD."' OR t3.visibility='".COURSE_VISIBILITY_OPEN_PLATFORM."' )";
- }
- } else {
- if ($setting_show_also_closed_courses) {
- $platform_visible_courses = '';
- } else {
- $platform_visible_courses = " AND (t3.visibility='".COURSE_VISIBILITY_OPEN_WORLD."' )";
- }
- }
- $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 $platform_visible_courses)
- WHERE t1.parent_id ". (empty ($category) ? "IS NULL" : "='$category'")."
- GROUP BY t1.name,t1.code,t1.parent_id,t1.children_count ORDER BY t1.tree_pos, t1.name";
- // Showing only the category of courses of the current access_url_id.
- global $_configuration;
- if ($_configuration['multiple_access_urls']) {
- $url_access_id = api_get_current_access_url_id();
- if ($url_access_id != -1) {
- $tbl_url_rel_course = Database::get_main_table(TABLE_MAIN_ACCESS_URL_REL_COURSE);
- $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 $platform_visible_courses)
- INNER JOIN $tbl_url_rel_course as url_rel_course
- ON (url_rel_course.course_code=t3.code)
- WHERE access_url_id = $url_access_id AND t1.parent_id ".(empty($category) ? "IS NULL" : "='$category'")."
- GROUP BY t1.name,t1.code,t1.parent_id,t1.children_count ORDER BY t1.tree_pos, t1.name";
- }
- }
- $resCats = Database::query($sqlGetSubCatList);
- $thereIsSubCat = false;
- if (Database::num_rows($resCats) > 0) {
- $htmlListCat = '<h4 style="margin-top: 0px;">'.get_lang('CatList').'</h4><ul>';
- while ($catLine = Database::fetch_array($resCats)) {
- if ($catLine['code'] != $category) {
- $category_has_open_courses = category_has_open_courses($catLine['code']);
- if ($category_has_open_courses) {
- // The category contains courses accessible to anonymous visitors.
- $htmlListCat .= '<li>';
- $htmlListCat .= '<a href="'.api_get_self().'?category='.$catLine['code'].'">'.$catLine['name'].'</a>';
- if (api_get_setting('show_number_of_courses') == 'true') {
- $htmlListCat .= ' ('.$catLine['nbCourse'].' '.get_lang('Courses').')';
- }
- $htmlListCat .= "</li>\n";
- $thereIsSubCat = true;
- } elseif ($catLine['children_count'] > 0) {
- // The category has children, subcategories.
- $htmlListCat .= '<li>';
- $htmlListCat .= '<a href="'.api_get_self().'?category='.$catLine['code'].'">'.$catLine['name'].'</a>';
- $htmlListCat .= "</li>\n";
- $thereIsSubCat = true;
- }
- /* End changed code to eliminate the (0 courses) after empty categories. */
- elseif (api_get_setting('show_empty_course_categories') == 'true') {
- $htmlListCat .= '<li>';
- $htmlListCat .= $catLine['name'];
- $htmlListCat .= "</li>\n";
- $thereIsSubCat = true;
- } // Else don't set thereIsSubCat to true to avoid printing things if not requested.
- } else {
- $htmlTitre = '<p>';
- if (api_get_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']) || (api_get_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 = Database::fetch_array($resCats)) {
- echo '<h3>', $categoryName['name'], "</h3>\n";
- }
- $numrows = Database::num_rows($sql_result_courses);
- $courses_list_string = '';
- $courses_shown = 0;
- if ($numrows > 0) {
- if ($thereIsSubCat) {
- $courses_list_string .= "<hr size=\"1\" noshade=\"noshade\">\n";
- }
- $courses_list_string .= '<h4 style="margin-top: 0px;">'.get_lang('CourseList')."</h4>\n<ul>\n";
- if (api_get_user_id()) {
- $courses_of_user = get_courses_of_user(api_get_user_id());
- }
- foreach ($course_list as $course) {
- // $setting_show_also_closed_courses
- if (!$setting_show_also_closed_courses) {
- // If we do not show the closed courses
- // we only show the courses that are open to the world (to everybody)
- // and the courses that are open to the platform (if the current user is a registered user.
- if( ($user_identified && $course['visibility'] == COURSE_VISIBILITY_OPEN_PLATFORM) || ($course['visibility'] == COURSE_VISIBILITY_OPEN_WORLD)) {
- $courses_shown++;
- $courses_list_string .= "<li>\n";
- $courses_list_string .= '<a href="'.$web_course_path.$course['directory'].'/">'.$course['title'].'</a><br />';
- if (api_get_setting('display_coursecode_in_courselist') == 'true') {
- $courses_list_string .= $course['visual_code'];
- }
- if (api_get_setting('display_coursecode_in_courselist') == 'true' && api_get_setting('display_teacher_in_courselist') == 'true') {
- $courses_list_string .= ' - ';
- }
- if (api_get_setting('display_teacher_in_courselist') == 'true') {
- $courses_list_string .= $course['tutor_name'];
- }
- if (api_get_setting('show_different_course_language') == 'true' && $course['course_language'] != api_get_setting('platformLanguage')) {
- $courses_list_string .= ' - '.$course['course_language'];
- }
- $courses_list_string .= "</li>\n";
- }
- }
- // We DO show the closed courses.
- // The course is accessible if (link to the course homepage):
- // 1. the course is open to the world (doesn't matter if the user is logged in or not): $course['visibility'] == COURSE_VISIBILITY_OPEN_WORLD);
- // 2. the user is logged in and the course is open to the world or open to the platform: ($user_identified && $course['visibility'] == COURSE_VISIBILITY_OPEN_PLATFORM);
- // 3. the user is logged in and the user is subscribed to the course and the course visibility is not COURSE_VISIBILITY_CLOSED;
- // 4. the user is logged in and the user is course admin of te course (regardless of the course visibility setting);
- // 5. the user is the platform admin api_is_platform_admin().
- //
- else {
- $courses_shown++;
- $courses_list_string .= "<li>\n";
- if ($course['visibility'] == COURSE_VISIBILITY_OPEN_WORLD
- || ($user_identified && $course['visibility'] == COURSE_VISIBILITY_OPEN_PLATFORM)
- || ($user_identified && key_exists($course['code'], $courses_of_user) && $course['visibility'] != COURSE_VISIBILITY_CLOSED)
- || $courses_of_user[$course['code']]['status'] == '1'
- || api_is_platform_admin()) {
- $courses_list_string .= '<a href="'.$web_course_path.$course['directory'].'/">';
- }
- $courses_list_string .= $course['title'];
- if ($course['visibility'] == COURSE_VISIBILITY_OPEN_WORLD
- || ($user_identified && $course['visibility'] == COURSE_VISIBILITY_OPEN_PLATFORM)
- || ($user_identified && key_exists($course['code'], $courses_of_user) && $course['visibility'] != COURSE_VISIBILITY_CLOSED)
- || $courses_of_user[$course['code']]['status'] == '1'
- || api_is_platform_admin()) {
- $courses_list_string .= '</a><br />';
- }
- if (api_get_setting('display_coursecode_in_courselist') == 'true') {
- $courses_list_string .= ' '.$course['visual_code'];
- }
- if (api_get_setting('display_coursecode_in_courselist') == 'true' && api_get_setting('display_teacher_in_courselist') == 'true') {
- $courses_list_string .= ' - ';
- }
- if (api_get_setting('display_teacher_in_courselist') == 'true') {
- $courses_list_string .= $course['tutor_name'];
- }
- if (api_get_setting('show_different_course_language') == 'true' && $course['course_language'] != api_get_setting('platformLanguage')) {
- $courses_list_string .= ' - '.$course['course_language'];
- }
- if (api_get_setting('show_different_course_language') == 'true' && $course['course_language'] != api_get_setting('platformLanguage')) {
- $courses_list_string .= ' - '.$course['course_language'];
- }
- // We display a subscription link if:
- // 1. it is allowed to register for the course and if the course is not already in the courselist of the user and if the user is identiefied
- // 2.
- if ($user_identified && !key_exists($course['code'], $courses_of_user)) {
- if ($course['subscribe'] == '1') {
- $courses_list_string .= '<form action="main/auth/courses.php?action=subscribe&category='.Security::remove_XSS($_GET['category']).'" method="post">';
- $courses_list_string .= '<input type="hidden" name="sec_token" value="'.$stok.'">';
- $courses_list_string .= '<input type="hidden" name="subscribe" value="'.$course['code'].'" />';
- $courses_list_string .= '<input type="image" name="unsub" src="main/img/enroll.gif" alt="'.get_lang('Subscribe').'" />'.get_lang('Subscribe').'</form>';
- } else {
- $courses_list_string .= '<br />'.get_lang('SubscribingNotAllowed');
- }
- }
- $courses_list_string .= "</li>\n";
- }
- }
- $courses_list_string .= "</ul>\n";
- } else {
- //echo '<blockquote>', get_lang('_No_course_publicly_available'), "</blockquote>\n";
- }
- if ($courses_shown > 0) { // Only display the list of courses and categories if there was more than
- // 0 courses visible to the world (we're in the anonymous list here).
- echo $courses_list_string;
- }
- if ($category != '') {
- echo '<p><a href="'.api_get_self().'"> ', Display :: return_icon('back.png', get_lang('BackToHomePage')), get_lang('BackToHomePage'), '</a></p>', "\n";
- }
- }
- /**
- * retrieves all the courses that the user has already subscribed to
- * @author Patrick Cool <patrick.cool@UGent.be>, Ghent University, Belgium
- * @param int $user_id: the id of the user
- * @return array an array containing all the information of the courses of the given user
- */
- function get_courses_of_user($user_id) {
- $table_course = Database::get_main_table(TABLE_MAIN_COURSE);
- $table_course_user = Database::get_main_table(TABLE_MAIN_COURSE_USER);
- // Secondly we select the courses that are in a category (user_course_cat <> 0) and sort these according to the sort of the category
- $user_id = intval($user_id);
- $sql_select_courses = "SELECT course.code k, course.visual_code vc, course.subscribe subscr, course.unsubscribe unsubscr,
- course.title i, course.tutor_name t, course.db_name db, course.directory dir, course_rel_user.status status,
- course_rel_user.sort sort, course_rel_user.user_course_cat user_course_cat
- FROM $table_course course,
- $table_course_user course_rel_user
- WHERE course.code = course_rel_user.course_code
- AND course_rel_user.user_id = '".$user_id."'
- AND course_rel_user.relation_type<>".COURSE_RELATION_TYPE_RRHH."
- ORDER BY course_rel_user.sort ASC";
- $result = Database::query($sql_select_courses);
- $courses = array();
- while ($row = Database::fetch_array($result)) {
- // We only need the database name of the course.
- $courses[$row['k']] = array('db' => $row['db'], 'code' => $row['k'], 'visual_code' => $row['vc'], 'title' => $row['i'], 'directory' => $row['dir'], 'status' => $row['status'], 'tutor' => $row['t'], 'subscribe' => $row['subscr'], 'unsubscribe' => $row['unsubscr'], 'sort' => $row['sort'], 'user_course_category' => $row['user_course_cat']);
- }
- return $courses;
- }
- function show_right_block($title, $content, $class = '') {
- $html = '';
- $html.= '<div id="menu" class="menu">';
- $html.= '<div class="menusection '.$class.' ">';
- if (!empty($title)) {
- $html.= '<span class="menusectioncaption">'.$title.'</span>';
- }
- $html.= $content;
- $html.= '</div>';
- $html.= '</div>';
- return $html;
- }
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