1<?php
2/**
3 * AJAX call handler for ACL plugin
4 *
5 * @license    GPL 2 (http://www.gnu.org/licenses/gpl.html)
6 * @author     Andreas Gohr <andi@splitbrain.org>
7 */
8
9/**
10 * Register handler
11 */
12class action_plugin_acl extends DokuWiki_Action_Plugin
13{
14
15    /**
16     * Registers a callback function for a given event
17     *
18     * @param Doku_Event_Handler $controller DokuWiki's event controller object
19     * @return void
20     */
21    public function register(Doku_Event_Handler $controller)
22    {
23
24        $controller->register_hook('AJAX_CALL_UNKNOWN', 'BEFORE', $this, 'handleAjaxCallAcl');
25    }
26
27    /**
28     * AJAX call handler for ACL plugin
29     *
30     * @param Doku_Event $event  event object by reference
31     * @param mixed $param  empty
32     * @return void
33     */
34    public function handleAjaxCallAcl(Doku_Event $event, $param)
35    {
36        if ($event->data !== 'plugin_acl') {
37            return;
38        }
39        $event->stopPropagation();
40        $event->preventDefault();
41
42        global $ID;
43        global $INPUT;
44
45        /** @var $acl admin_plugin_acl */
46        $acl = plugin_load('admin', 'acl');
47        if (!$acl->isAccessibleByCurrentUser()) {
48            echo 'for admins only';
49            return;
50        }
51        if (!checkSecurityToken()) {
52            echo 'CRSF Attack';
53            return;
54        }
55
56        $ID = getID();
57        $acl->handle();
58
59        $ajax = $INPUT->str('ajax');
60        header('Content-Type: text/html; charset=utf-8');
61
62        if ($ajax == 'info') {
63            $acl->printInfo();
64        } elseif ($ajax == 'tree') {
65            $ns = $INPUT->str('ns');
66            if ($ns == '*') {
67                $ns = '';
68            }
69            $ns = cleanID($ns);
70            $lvl = count(explode(':', $ns));
71            $ns = utf8_encodeFN(str_replace(':', '/', $ns));
72
73            $data = $acl->makeTree($ns, $ns);
74
75            foreach (array_keys($data) as $item) {
76                $data[$item]['level'] = $lvl + 1;
77            }
78            echo html_buildlist(
79                $data,
80                'acl',
81                array($acl, 'makeTreeItem'),
82                array($acl, 'makeListItem')
83            );
84        }
85    }
86}
87