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index.php
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index.php
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<?php
use Widgets\WidgetArea;
session_start();
/* ========================================================================
* Open eClass 4.0
* E-learning and Course Management System
* ========================================================================
* Copyright 2003-2021 Greek Universities Network - GUnet
* A full copyright notice can be read in "/info/copyright.txt".
* For a full list of contributors, see "credits.txt".
*
* Open eClass is an open platform distributed in the hope that it will
* be useful (without any warranty), under the terms of the GNU (General
* Public License) as published by the Free Software Foundation.
* The full license can be read in "/info/license/license_gpl.txt".
*
* Contact address: GUnet Asynchronous eLearning Group,
* Network Operations Center, University of Athens,
* Panepistimiopolis Ilissia, 15784, Athens, Greece
* e-mail: [email protected]
* ======================================================================== */
/*
* @file index.php
*
* @abstract This file serves as the home page of eclass when the user
* is not logged in.
*
*/
if (isset($_POST['admin_login'])) {
define('MAINTENANCE_PAGE', true);
}
// Handle alias of .../courses/<CODE>/... to index.php for course homes
if (preg_match('|/courses/([a-zA-Z0-9_-]+)/[^/]*$|', $_SERVER['REQUEST_URI'], $matches)) {
$dbname = $matches[1];
if (!is_dir('courses/' . $dbname)) {
header('HTTP/1.0 404 Not Found');
echo '<!DOCTYPE HTML PUBLIC "-//IETF//DTD HTML 2.0//EN">
<html><head><title>404 Not Found</title></head><body>
<h1>Not Found</h1>
<p>The requested URL ',htmlspecialchars($_SERVER['REQUEST_URI']),' was not found on this server.</p>
</body></html>';
exit;
}
$_SESSION['dbname'] = $dbname;
chdir('modules/course_home');
require_once '../../modules/course_home/course_home.php';
exit;
}
define('HIDE_TOOL_TITLE', 1);
$guest_allowed = true;
require_once 'include/baseTheme.php';
require_once 'modules/auth/login_form.inc.php';
require_once 'include/sendMail.inc.php';
// unset system that records visitor only once by course for statistics
require_once 'include/action.php';
load_js('trunk8');
if (isset($dbname)) {
$action = new action();
$action->record(MODULE_ID_UNITS, 'exit');
}
unset($dbname);
if (isset($_SESSION['uid'])) {
$uid = $_SESSION['uid'];
} else {
$uid = 0;
}
// if we try to login... then authenticate user.
$warning = '';
if(isset($_SESSION['hybridauth_callback'])) {
switch($_SESSION['hybridauth_callback']) {
case 'login':
$_GET['provider'] = $_SESSION['hybridauth_provider'] ?? '';
break;
case 'profile':
$provider = $_SESSION['hybridauth_provider'] ?? '';
header('Location: /main/profile/profile.php?action=connect&provider='.$provider.'&'.$_SERVER['QUERY_STRING']);
exit;
case 'auth_test':
$provider = $_SESSION['hybridauth_provider'] ?? '';
header('Location: /modules/admin/auth_test.php?auth='.$provider.'&'.$_SERVER['QUERY_STRING']);
exit;
}
}
if (isset($_SESSION['shib_uname'])) {
// authenticate via Shibboleth
shib_cas_login('shibboleth');
} elseif (isset($_SESSION['cas_uname'])) {
// authenticate via CAS
shib_cas_login('cas');
} elseif (isset($_SESSION['auth_id'])) {
// authenticate via OAuth 2.0
shib_cas_login('oauth2');
} elseif (isset($_GET['provider'])) {
//hybridauth authentication (Facebook, Twitter, Google, Yahoo, Live, LinkedIn)
hybridauth_login();
} else {
// normal authentication
process_login();
}
$data['warning'] = $warning;
// if the user logged in include the correct language files
// in case he has a different language set in his/her profile
if (isset($language)) {
// include_messages
include "lang/$language/common.inc.php";
$extra_messages = "config/{$language_codes[$language]}.inc.php";
if (file_exists($extra_messages)) {
include $extra_messages;
} else {
$extra_messages = false;
}
include "lang/$language/messages.inc.php";
if (file_exists('config/config.php')) {
if(get_config('show_always_collaboration') and get_config('show_collaboration')){
include "lang/$language/messages_collaboration.inc.php";
}
}
if ($extra_messages) {
include $extra_messages;
}
}
// check if we are guest user
if (!$upgrade_begin and $uid and !isset($_GET['redirect_home'])) {
if (check_guest()) {
// if the user is a guest send him straight to the corresponding lesson
$guest = Database::get()->querySingle("SELECT code FROM course_user, course
WHERE course.id = course_user.course_id AND
user_id = ?d", $uid);
if ($guest) {
$dbname = $guest->code;
$_SESSION['dbname'] = $dbname;
header("Location: {$urlServer}courses/$dbname/index.php");
exit;
}
}
// if user is logged in redirect him to homepage
if(isset($_GET['show_home'])){
header("Location: {$urlServer}?redirect_home=true");
}else{
// if user is not guest redirect him to portfolio
header("Location: {$urlServer}main/portfolio.php");
}
} else {
// check authentication methods
$hybridLinkId = null;
$hybridProviders = array();
$authLinks = array();
if (!$upgrade_begin) {
$loginFormEnabled = false;
$q = Database::get()->queryArray("SELECT auth_id, auth_name, auth_default, auth_title, auth_instructions
FROM auth WHERE auth_default <> 0
ORDER BY auth_default DESC, auth_id");
foreach ($q as $l) {
if (in_array($l->auth_name, $extAuthMethods)) {
$authNameDefault = '';
if(!empty($l->auth_title)){
$authNameDefault = $l->auth_title;
}else{
$authNameDefault = $langEnter;
}
$authLinks[] = array(
'authId' => $l->auth_id,
'is_primary' => $l->auth_default,
'authInstructions' => $l->auth_instructions,
'nameAuth' => $l->auth_name,
'showTitle' => true,
'class' => 'login-option login-option-sso',
'title' => empty($l->auth_title)? "$langLogInWith {$l->auth_name}": q(getSerializedMessage($l->auth_title)),
'html' => "<a class='btn submitAdminBtnDefault sso-btn d-inline-flex' href='" . $urlServer . ($l->auth_name == 'cas'? 'modules/auth/cas.php': 'secure/') . "'>$authNameDefault</a>");
} elseif (in_array($l->auth_name, $hybridAuthMethods)) {
$hybridProviders[] = $l->auth_name;
if (is_null($hybridLinkId)) {
$authLinks[] = array(
'authId' => $l->auth_id,
'is_primary' => $l->auth_default,
'authInstructions' => $l->auth_instructions,
'nameAuth' => $l->auth_name,
'showTitle' => true,
'class' => 'login-option',
'title' => $langViaSocialNetwork);
$hybridLinkId = count($authLinks) - 1;
}
} elseif (!$loginFormEnabled) {
$autofocus = count($authLinks)? '' : 'autofocus' ;
$loginFormEnabled = true;
$authLinks[] = array(
'authId' => $l->auth_id,
'is_primary' => $l->auth_default,
'authInstructions' => $l->auth_instructions,
'nameAuth' => $l->auth_name,
'showTitle' => false,
'class' => 'login-option',
'title' => empty($l->auth_title)? "$langLogInWith {$l->auth_name}": q(getSerializedMessage($l->auth_title)),
'html' => " <form action='$urlServer' method='post'>
<div class='form-group text-start'>
<label for='uname' class='form-label'>$langUsername</label>
<input type='text' id='uname' name='uname' class='login-input w-100' placeholder='' $autofocus>
</div>
<div class='form-group text-start mt-3'>
<label for='pass' class='form-label'>$langPass</label>
<div class='input-group flex-nowrap'>
<input type='password' id='pass' class='login-input border-end-0 w-100 mt-0' name='pass' placeholder='' aria-label='reveal Password'>
<span id='revealPass' class='input-group-text login-input-password-reveal border-start-0 bg-input-default input-border-color'>
<i class='fa-solid fa-eye fa-md'></i>
</span>
</div>
</div>
<button type='submit' name='submit' class='btn w-100 login-form-submit mt-4'>$langEnter</button>
</form>
<div class='col-12 d-flex justify-content-md-start justify-content-center align-items-center mt-4'>
<a class='text-decoration-underline' href='modules/auth/lostpass.php'>$lang_forgot_pass</a>
</div>");
}
}
if (count($hybridProviders)) {
$authLinks[$hybridLinkId]['html'] = '<div class="col-12 d-flex justify-content-center align-items-center gap-3 flex-wrap">';
$beginHybridHTML = true;
$head_content .= "<link rel='stylesheet' type='text/css' href='{$urlServer}template/modern/css/bootstrap-social.css'>";
foreach ($hybridProviders as $provider) {
if ($beginHybridHTML) {
$beginHybridHTML = false;
} else {
$authLinks[$hybridLinkId]['html'] .= '<br>';
}
$provider_link = $provider;
if($provider_link == 'live'){
$provider_link = 'microsoft';
}
$authLinks[$hybridLinkId]['html'] .=
"<a class='btn submitAdminBtnDefault btn-$provider_link social-btn m-2 d-inline-flex' href='{$urlServer}index.php?provider=$provider'><img src='$themeimg/$provider.png' alt='Sign-in with $provider' style='margin-right: 0.5em;'>" . ucfirst($provider) . "</a>";
}
$authLinks[$hybridLinkId]['html'] .= '</div>';
}
$data['authLinks'] = $authLinks;
$head_content .= "
<script>
$(function() {
$('#revealPass').mousedown(function () {
$('#pass').attr('type', 'text');
}).mouseup(function () {
$('#pass').attr('type', 'password');
})
});
</script>
<link rel='alternate' type='application/rss+xml' title='RSS-Feed' href='{$urlServer}rss.php'>";
}
if (!($upgrade_begin or get_config('dont_display_login_form'))) {
if (count($authLinks) > 3) {
// home page login form with more than 3 buttons not supported
$data['authLinks'] = array($authLinks[0]);
}
}
$data['total_collaboration_courses'] = Database::get()->querySingle("SELECT COUNT(*) AS total FROM course WHERE is_collaborative = ?d",1)->total;
$data['popular_courses'] = Database::get()->queryArray('SELECT * FROM `course`
WHERE `popular_course` = ?d AND `visible` != ?d AND lang=?s', 1, 3, $language);
$data['announcements'] = Database::get()->queryArray("SELECT `id`, `date`, `title`, `body`, `order` FROM `admin_announcement`
WHERE `visible` = 1
AND `important` = 0
AND lang=?s
AND (`begin` <= NOW() or `begin` IS null)
AND (NOW() <= `end` or `end` IS null)
ORDER BY `order` DESC", $language);
$data['texts'] = Database::get()->queryArray("SELECT * FROM `homepageTexts` WHERE `lang` = ?s AND `type` = ?d ORDER BY `order` ASC",$language,1);
$data['testimonials'] = Database::get()->queryArray("SELECT * FROM `homepageTexts` WHERE `lang` = ?s AND `type` = ?d ORDER BY `order` ASC",$language,2);
$data['auth_enabled_method'] = 0;
$active_method = Database::get()->queryArray("SELECT * FROM auth WHERE auth_default = ?d OR auth_default = ?d",1,2);
if(count($active_method) > 0){
$data['auth_enabled_method'] = 1;
}
//priotities
$priority_order = 0;
$priorities = Database::get()->queryArray("SELECT `title` FROM `homepagePriorities` ORDER BY `order` ASC");
if(count($priorities) > 0){
foreach($priorities as $p){
if($p->title == 'announcements'){
$data['announcements_priority'] = $priority_order;
}elseif($p->title == 'popular_courses'){
$data['popular_courses_priority'] = $priority_order;
}elseif($p->title == 'texts'){
$data['texts_priority'] = $priority_order;
}elseif($p->title == 'testimonials'){
$data['testimonials_priority'] = $priority_order;
}elseif($p->title == 'statistics'){
$data['statistics_priority'] = $priority_order;
}else{
$data['open_courses_priority'] = $priority_order;
}
$priority_order++;
}
}
$data['dateFormatLong'] = $dateFormatLong;
$data['home_main_area_widgets'] = '';
$home_main_area = new WidgetArea(HOME_PAGE_MAIN);
$data['home_main_area_widgets'] = '';
foreach ($home_main_area->getWidgets() as $key => $widget) {
$data['home_main_area_widgets'] .= $widget->run($key);
}
// display extras right
$data['extra_right'] = $langExtrasRight ?:false;
// display online users
$data['online_users'] = getOnlineUsers();
if (!isset($openCoursesExtraHTML)) {
$openCoursesExtraHTML = '';
setOpenCoursesExtraHTML();
$data['openCoursesExtraHTML'] = $openCoursesExtraHTML;
}
$data['home_page_sidebar_widgets'] = '';
$home_page_sidebar = new WidgetArea(HOME_PAGE_SIDEBAR);
$data['home_page_sidebar_widgets'] = '';
foreach ($home_page_sidebar->getWidgets() as $key => $widget) {
$data['home_page_sidebar_widgets'] .= $widget->run($key);
}
view('home.index', $data);
}