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<?php
/**
* login.php - login
*
* 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.
*
* @author André Noack <noack@data-quest.de>
* @license http://www.gnu.org/licenses/gpl-2.0.html GPL version 2
* @category Stud.IP
*/
class LoginController extends AuthenticatedController
{
protected $allow_nobody = true;
public function __construct(\Trails\Dispatcher $dispatcher)
{
Config::get()->USER_VISIBILITY_CHECK = false;
parent::__construct($dispatcher);
}
public function index_action(): void
{
if (User::findCurrent()) {
$this->redirect(URLHelper::getURL('dispatch.php/start'));
return;
}
if (Request::isXhr()) {
if (Request::isDialog()) {
$this->relocate(URLHelper::getURL($_SERVER['REQUEST_URI']));
return;
}
throw new AccessDeniedException();
}
if (Request::submitted('user_config_submitted')) {
CSRFProtection::verifyUnsafeRequest();
if (Request::submitted('unset_contrast')) {
$_SESSION['contrast'] = 0;
$this->redirect('login/index'); //we're too late to remove the high contrast mode, so we reload the page
return;
}
if (Request::submitted('set_contrast')) {
$_SESSION['contrast'] = 1;
}
foreach (array_keys($GLOBALS['INSTALLED_LANGUAGES']) as $language_key) {
if (Request::submitted('set_language_' . $language_key)) {
$_SESSION['forced_language'] = $language_key;
$_SESSION['_language'] = $language_key;
init_i18n($_SESSION['_language']);
}
}
if (!empty($_SESSION['contrast'])) {
\PageLayout::addStylesheet('accessibility.css');
}
}
if (Request::isPost()) {
CSRFProtection::verifyUnsafeRequest();
$check_auth = StudipAuthAbstract::CheckAuthentication(
Request::get('loginname'),
Request::get('password')
);
if ($check_auth['uid']) {
$uid = $check_auth['uid'];
if (
isset($check_auth['need_email_activation'])
&& $check_auth['need_email_activation'] === $uid
) {
$this->need_email_activation = $uid;
$_SESSION['semi_logged_in'] = $uid;
$this->redirect('login/activate_email', ['uid' => $uid]);
return;
} else {
auth()->setAuthenticatedUser($check_auth['user']);
Metrics::increment('core.login.succeeded');
sess()->regenerateId(['auth', '_language', 'phpCAS', 'contrast', 'redirect_after_login']);
if (isset($_SESSION['redirect_after_login'] )) {
$this->redirect($_SESSION['redirect_after_login']);
return;
}
$this->redirect('start/index');
return;
}
} else {
Metrics::increment('core.login.failed');
$this->error_msg = $check_auth['error'];
}
}
$this->has_login_error = false;
if ($this->error_msg) {
PageLayout::postException(_('Bei der Anmeldung trat ein Fehler auf!'), $this->error_msg);
$this->has_login_error = true;
}
$this->uname = $this->auth['uname'] ?? Request::username('loginname');
$this->self_registration_activated = Config::get()->getValue('ENABLE_SELF_REGISTRATION');
$this->news_entries = [];
if (Config::get()->getValue('LOGIN_NEWS_VISIBILITY')) {
$news_entries = StudipNews::GetNewsByRange('login', true);
$this->news_entries = array_values($news_entries);
}
$this->faq_entries = [];
if (Config::get()->getValue('LOGIN_FAQ_VISIBILITY')) {
$this->faq_entries = LoginFaq::findBySQL("1 ORDER BY `faq_id`");
}
PageLayout::setHelpKeyword('Basis.AnmeldungLogin');
PageLayout::disableSidebar();
PageLayout::setBodyElementId('login');
}
public function activate_email_action(): void
{
PageLayout::setTitle(_('E-Mail Aktivierung'));
$uid = Request::option('uid');
$user = User::find($uid);
if (!$user) {
throw new \Trails\Exception(400);
}
if (Request::get('key')) {
$key = $user->validation_key;
if (Request::get('key') === $key) {
$user->validation_key = '';
$user->store();
unset($_SESSION['semi_logged_in']);
PageLayout::postSuccess(_('Ihre E-Mail-Adresse wurde erfolgreich geändert.'));
$this->redirect(URLHelper::getURL('dispatch.php/start'));
} else if (!$key) {
PageLayout::postInfo(_('Ihre E-Mail-Adresse ist bereits geändert.'));
$this->redirect(URLHelper::getURL('dispatch.php/start'));
} else {
if (Request::get('key')) {
PageLayout::postError(_("Falscher Bestätigungscode."));
}
$this->mail_explain = true;
if ($_SESSION['semi_logged_in'] === Request::option('uid')) {
$this->reenter_mail = true;
} else {
PageLayout::postInfo(_('Sie können sich einloggen und sich den Bestätigungscode neu oder an eine andere E-Mail-Adresse schicken lassen.'));
$this->redirect(URLHelper::getURL('dispatch.php/start'));
}
}
// checking semi_logged_in is important to avoid abuse
} elseif (
Request::get('email1')
&& Request::get('email2')
&& $_SESSION['semi_logged_in'] === Request::option('uid')
) {
if (Request::get('email1') == Request::get('email2')) {
// change mail
$tmp_user = User::find(Request::option('uid'));
if ($tmp_user && $tmp_user->changeEmail(Request::get('email1'), true)) {
$_SESSION['semi_logged_in'] = false;
}
} else {
PageLayout::postError(_('Die eingegebenen E-Mail-Adressen stimmen nicht überein. Bitte überprüfen Sie Ihre Eingabe.'));
}
$this->mail_explain = true;
$this->reenter_mail = true;
} else {
$this->mail_explain = true;
}
}
public function privacy_info_action(): void
{
// this page must be accessible during visibility decision
Config::get()->USER_VISIBILITY_CHECK = false;
PageLayout::setTitle(_('Erläuterungen zum Datenschutz'));
}
}
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