xref: /dokuwiki/inc/Action/Logout.php (revision 6723156fd9886ff7204e21fb8bf9240b9223b40f)
164ab5140SAndreas Gohr<?php
264ab5140SAndreas Gohr
364ab5140SAndreas Gohrnamespace dokuwiki\Action;
464ab5140SAndreas Gohr
5480336a3SAndreas Gohruse dokuwiki\Action\Exception\ActionDisabledException;
664ab5140SAndreas Gohruse dokuwiki\Action\Exception\ActionException;
779a2d784SGerrit Uitslaguse dokuwiki\Extension\AuthPlugin;
864ab5140SAndreas Gohr
9ab583a1bSAndreas Gohr/**
10ab583a1bSAndreas Gohr * Class Logout
11ab583a1bSAndreas Gohr *
12ab583a1bSAndreas Gohr * Log out a user
13ab583a1bSAndreas Gohr *
14ab583a1bSAndreas Gohr * @package dokuwiki\Action
15ab583a1bSAndreas Gohr */
16ab583a1bSAndreas Gohrclass Logout extends AbstractUserAction {
1764ab5140SAndreas Gohr
1864ab5140SAndreas Gohr    /** @inheritdoc */
19ec701221SAndreas Gohr    public function minimumPermission() {
2064ab5140SAndreas Gohr        return AUTH_NONE;
2164ab5140SAndreas Gohr    }
2264ab5140SAndreas Gohr
2364ab5140SAndreas Gohr    /** @inheritdoc */
24b2c9cd19SAndreas Gohr    public function checkPreconditions() {
25b2c9cd19SAndreas Gohr        parent::checkPreconditions();
26480336a3SAndreas Gohr
2779a2d784SGerrit Uitslag        /** @var AuthPlugin $auth */
28480336a3SAndreas Gohr        global $auth;
29480336a3SAndreas Gohr        if(!$auth->canDo('logout')) throw new ActionDisabledException();
30480336a3SAndreas Gohr    }
31480336a3SAndreas Gohr
32480336a3SAndreas Gohr    /** @inheritdoc */
3364ab5140SAndreas Gohr    public function preProcess() {
3464ab5140SAndreas Gohr        global $ID;
3564ab5140SAndreas Gohr        global $INPUT;
3664ab5140SAndreas Gohr
376a25531dSAndreas Gohr        if (!checkSecurityToken()) throw new ActionException();
386a25531dSAndreas Gohr
3964ab5140SAndreas Gohr        // when logging out during an edit session, unlock the page
4064ab5140SAndreas Gohr        $lockedby = checklock($ID);
4164ab5140SAndreas Gohr        if($lockedby == $INPUT->server->str('REMOTE_USER')) {
4264ab5140SAndreas Gohr            unlock($ID);
4364ab5140SAndreas Gohr        }
4464ab5140SAndreas Gohr
4564ab5140SAndreas Gohr        // do the logout stuff and redirect to login
4664ab5140SAndreas Gohr        auth_logoff();
47*6723156fSAndreas Gohr        send_redirect(wl($ID, ['do' => 'login'], true, '&'));
4864ab5140SAndreas Gohr
4964ab5140SAndreas Gohr        // should never be reached
5064ab5140SAndreas Gohr        throw new ActionException('login');
5164ab5140SAndreas Gohr    }
5264ab5140SAndreas Gohr
5364ab5140SAndreas Gohr}
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