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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 * http://www.gnu.org/copyleft/gpl.html
17 *
18 * @file
19 */
20
21namespace MediaWiki\Specials;
22
23use MediaWiki\Cache\LinkBatchFactory;
24use MediaWiki\Languages\LanguageConverterFactory;
25use MediaWiki\Title\NamespaceInfo;
26use MediaWiki\Title\Title;
27use Skin;
28use stdClass;
29use Wikimedia\Rdbms\IConnectionProvider;
30
31/**
32 * List of uncategorized category pages.
33 *
34 * @ingroup SpecialPage
35 */
36class SpecialUncategorizedCategories extends SpecialUncategorizedPages {
37    /**
38     * Holds a list of categories, which shouldn't be listed on this special page,
39     * even if it is uncategorized.
40     * @var array
41     */
42    private $exceptionList = null;
43
44    /**
45     * @param NamespaceInfo $namespaceInfo
46     * @param IConnectionProvider $dbProvider
47     * @param LinkBatchFactory $linkBatchFactory
48     * @param LanguageConverterFactory $languageConverterFactory
49     */
50    public function __construct(
51        NamespaceInfo $namespaceInfo,
52        IConnectionProvider $dbProvider,
53        LinkBatchFactory $linkBatchFactory,
54        LanguageConverterFactory $languageConverterFactory
55    ) {
56        parent::__construct(
57            $namespaceInfo,
58            $dbProvider,
59            $linkBatchFactory,
60            $languageConverterFactory
61        );
62        $this->mName = 'Uncategorizedcategories';
63        $this->requestedNamespace = NS_CATEGORY;
64    }
65
66    /**
67     * Returns an array of category titles (usually without the namespace), which
68     * shouldn't be listed on this page, even if they're uncategorized.
69     *
70     * @return array
71     */
72    private function getExceptionList() {
73        if ( $this->exceptionList === null ) {
74            $this->exceptionList = [];
75            $exList = $this->msg( 'uncategorized-categories-exceptionlist' )
76                ->inContentLanguage()->plain();
77            $proposedTitles = explode( "\n", $exList );
78            foreach ( $proposedTitles as $titleStr ) {
79                if ( !str_starts_with( $titleStr, '*' ) ) {
80                    continue;
81                }
82                $titleStr = preg_replace( "/^\\*\\s*/", '', $titleStr );
83                $title = Title::newFromText( $titleStr, NS_CATEGORY );
84                if ( $title && $title->getNamespace() !== NS_CATEGORY ) {
85                    $title = Title::makeTitleSafe( NS_CATEGORY, $titleStr );
86                }
87                if ( $title ) {
88                    $this->exceptionList[] = $title->getDBkey();
89                }
90            }
91        }
92        return $this->exceptionList;
93    }
94
95    public function getQueryInfo() {
96        $query = parent::getQueryInfo();
97        $exceptionList = $this->getExceptionList();
98        if ( $exceptionList ) {
99            $dbr = $this->getDatabaseProvider()->getReplicaDatabase();
100            $query['conds'][] = $dbr->expr( 'page_title', '!=', $exceptionList );
101        }
102
103        return $query;
104    }
105
106    /**
107     * Formats the result
108     * @param Skin $skin The current skin
109     * @param stdClass $result The query result
110     * @return string The category link
111     */
112    public function formatResult( $skin, $result ) {
113        $title = Title::makeTitle( NS_CATEGORY, $result->title );
114        $text = $title->getText();
115
116        return $this->getLinkRenderer()->makeKnownLink( $title, $text );
117    }
118}
119
120/**
121 * Retain the old class name for backwards compatibility.
122 * @deprecated since 1.41
123 */
124class_alias( SpecialUncategorizedCategories::class, 'SpecialUncategorizedCategories' );