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20
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 * http://www.gnu.org/copyleft/gpl.html
17 *
18 * @file
19 */
20
21namespace MediaWiki\Minerva\Skins;
22
23use IContextSource;
24use MediaWiki\Title\Title;
25use MediaWiki\User\User;
26use MediaWiki\User\UserFactory;
27use MediaWiki\User\UserNameUtils;
28
29class SkinUserPageHelper {
30    private UserFactory $userFactory;
31    private UserNameUtils $userNameUtils;
32    private IContextSource $context;
33    private ?Title $title;
34    private bool $fetchedData = false;
35    private ?User $pageUser = null;
36
37    public function __construct(
38        UserFactory $userFactory,
39        UserNameUtils $userNameUtils
40    ) {
41        $this->userFactory = $userFactory;
42        $this->userNameUtils = $userNameUtils;
43    }
44
45    public function setContext( IContextSource $context ): self {
46        $this->context = $context;
47        return $this;
48    }
49
50    public function setTitle( ?Title $title ): self {
51        $this->title = $title;
52        return $this;
53    }
54
55    /**
56     * Fetch user data and store locally for performance improvement
57     */
58    private function fetchData(): ?User {
59        if ( !$this->fetchedData ) {
60            if ( $this->title && $this->title->inNamespace( NS_USER ) && !$this->title->isSubpage() ) {
61                $this->pageUser = $this->buildPageUserObject( $this->title );
62            }
63            $this->fetchedData = true;
64        }
65        return $this->pageUser;
66    }
67
68    /**
69     * Return new User object based on username or IP address.
70     */
71    private function buildPageUserObject( Title $title ): ?User {
72        $titleText = $title->getText();
73
74        if ( $this->userNameUtils->isIP( $titleText ) ) {
75            return $this->userFactory->newAnonymous( $titleText );
76        }
77
78        $user = $this->userFactory->newFromName( $titleText );
79        if ( $user && $user->isRegistered() ) {
80            return $user;
81        }
82
83        return null;
84    }
85
86    public function getPageUser(): ?User {
87        return $this->fetchData();
88    }
89
90    public function isUserPage(): bool {
91        return $this->fetchData() !== null;
92    }
93
94    public function isUserPageAccessibleToCurrentUser(): bool {
95        $pageUser = $this->fetchData();
96        $isHidden = $pageUser && $pageUser->isHidden();
97        $canViewHidden = $this->context && $this->context->getAuthority()->isAllowed( 'hideuser' );
98        return !$isHidden || $canViewHidden;
99    }
100}