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1<?php
2/**
3 * This program is free software; you can redistribute it and/or modify
4 * it under the terms of the GNU General Public License as published by
5 * the Free Software Foundation; either version 2 of the License, or
6 * (at your option) any later version.
7 *
8 * This program is distributed in the hope that it will be useful,
9 * but WITHOUT ANY WARRANTY; without even the implied warranty of
10 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
11 * GNU General Public License for more details.
12 *
13 * You should have received a copy of the GNU General Public License along
14 * with this program; if not, write to the Free Software Foundation, Inc.,
15 * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
16 * https://www.gnu.org/copyleft/gpl.html
17 *
18 * @file
19 */
20
21namespace MediaWiki\Extension\StopForumSpam;
22
23use MediaWiki\Config\Config;
24use MediaWiki\Extension\AbuseFilter\Hooks\AbuseFilterBuilderHook;
25use MediaWiki\Extension\AbuseFilter\Hooks\AbuseFilterComputeVariableHook;
26use MediaWiki\Extension\AbuseFilter\Hooks\AbuseFilterGenerateUserVarsHook;
27use MediaWiki\Extension\AbuseFilter\Variables\VariableHolder;
28use MediaWiki\RecentChanges\RecentChange;
29use MediaWiki\User\User;
30
31class AbuseFilterHookHandler implements
32    AbuseFilterBuilderHook,
33    AbuseFilterComputeVariableHook,
34    AbuseFilterGenerateUserVarsHook
35{
36
37    public function __construct( private readonly Config $config ) {
38    }
39
40    /**
41     * Computes the sfs-blocked variable
42     * @param string $method
43     * @param VariableHolder $vars
44     * @param array $parameters
45     * @param ?string &$result
46     * @return bool
47     */
48    // phpcs:ignore
49    public function onAbuseFilter_computeVariable(
50        string $method, VariableHolder $vars, array $parameters, ?string &$result
51    ) {
52        if ( $method === 'sfs-blocked' ) {
53            $ip = Hooks::getIPFromUser( $parameters['user'] );
54            if ( $ip === false ) {
55                $result = false;
56            } else {
57                $result = DenyListManager::singleton()->isIpDenyListed( $ip );
58            }
59
60            return false;
61        }
62
63        return true;
64    }
65
66    /**
67     * Load our blocked variable
68     * @param VariableHolder $vars
69     * @param User $user
70     * @param ?RecentChange $rc
71     * @return bool
72     */
73    // phpcs:ignore
74    public function onAbuseFilter_generateUserVars( VariableHolder $vars, User $user, ?RecentChange $rc ) {
75        if ( $this->config->get( 'SFSIPListLocation' ) ) {
76            $vars->setLazyLoadVar( 'sfs_blocked', 'sfs-blocked', [ 'user' => $user ] );
77        }
78
79        return true;
80    }
81
82    /**
83     * Tell AbuseFilter about our sfs-blocked variable
84     * @param array &$builderValues
85     * @return bool
86     */
87    // phpcs:ignore
88    public function onAbuseFilter_builder( &$builderValues ) {
89        if ( $this->config->get( 'SFSIPListLocation' ) ) {
90            // Uses: 'abusefilter-edit-builder-vars-sfs-blocked'
91            $builderValues['vars']['sfs_blocked'] = 'sfs-blocked';
92        }
93
94        return true;
95    }
96}