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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\User\User;
29use RecentChange;
30
31class AbuseFilterHookHandler implements
32    AbuseFilterBuilderHook,
33    AbuseFilterComputeVariableHook,
34    AbuseFilterGenerateUserVarsHook
35{
36
37    /** @var Config */
38    private Config $config;
39
40    /**
41     * @param Config $config
42     */
43    public function __construct( Config $config ) {
44        $this->config = $config;
45    }
46
47    /**
48     * Computes the sfs-blocked variable
49     * @param string $method
50     * @param VariableHolder $vars
51     * @param array $parameters
52     * @param ?string &$result
53     * @return bool
54     */
55    // phpcs:ignore
56    public function onAbuseFilter_computeVariable(
57        string $method, VariableHolder $vars, array $parameters, ?string &$result
58    ) {
59        if ( $method === 'sfs-blocked' ) {
60            $ip = Hooks::getIPFromUser( $parameters['user'] );
61            if ( $ip === false ) {
62                $result = false;
63            } else {
64                $result = DenyListManager::singleton()->isIpDenyListed( $ip );
65            }
66
67            return false;
68        }
69
70        return true;
71    }
72
73    /**
74     * Load our blocked variable
75     * @param VariableHolder $vars
76     * @param User $user
77     * @param ?RecentChange $rc
78     * @return bool
79     */
80    // phpcs:ignore
81    public function onAbuseFilter_generateUserVars( VariableHolder $vars, User $user, ?RecentChange $rc ) {
82        if ( $this->config->get( 'SFSIPListLocation' ) ) {
83            $vars->setLazyLoadVar( 'sfs_blocked', 'sfs-blocked', [ 'user' => $user ] );
84        }
85
86        return true;
87    }
88
89    /**
90     * Tell AbuseFilter about our sfs-blocked variable
91     * @param array &$builderValues
92     * @return bool
93     */
94    // phpcs:ignore
95    public function onAbuseFilter_builder( &$builderValues ) {
96        if ( $this->config->get( 'SFSIPListLocation' ) ) {
97            // Uses: 'abusefilter-edit-builder-vars-sfs-blocked'
98            $builderValues['vars']['sfs_blocked'] = 'sfs-blocked';
99        }
100
101        return true;
102    }
103}