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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 | |
21 | namespace MediaWiki\Specials; |
22 | |
23 | use MediaWiki\Cache\LinkBatchFactory; |
24 | use MediaWiki\Content\IContentHandlerFactory; |
25 | use MediaWiki\SpecialPage\QueryPage; |
26 | use MediaWiki\Title\Title; |
27 | use Skin; |
28 | use Wikimedia\Rdbms\IConnectionProvider; |
29 | use Wikimedia\Rdbms\IDatabase; |
30 | use Wikimedia\Rdbms\IResultWrapper; |
31 | |
32 | /** |
33 | * List of redirects to non-existent pages. |
34 | * |
35 | * Editors are encouraged to fix these by editing them to redirect to |
36 | * an existing page instead. |
37 | * |
38 | * @ingroup SpecialPage |
39 | */ |
40 | class SpecialBrokenRedirects extends QueryPage { |
41 | |
42 | private IContentHandlerFactory $contentHandlerFactory; |
43 | |
44 | /** |
45 | * @param IContentHandlerFactory $contentHandlerFactory |
46 | * @param IConnectionProvider $dbProvider |
47 | * @param LinkBatchFactory $linkBatchFactory |
48 | */ |
49 | public function __construct( |
50 | IContentHandlerFactory $contentHandlerFactory, |
51 | IConnectionProvider $dbProvider, |
52 | LinkBatchFactory $linkBatchFactory |
53 | ) { |
54 | parent::__construct( 'BrokenRedirects' ); |
55 | $this->contentHandlerFactory = $contentHandlerFactory; |
56 | $this->setDatabaseProvider( $dbProvider ); |
57 | $this->setLinkBatchFactory( $linkBatchFactory ); |
58 | } |
59 | |
60 | public function isExpensive() { |
61 | return true; |
62 | } |
63 | |
64 | public function isSyndicated() { |
65 | return false; |
66 | } |
67 | |
68 | protected function sortDescending() { |
69 | return false; |
70 | } |
71 | |
72 | protected function getPageHeader() { |
73 | return $this->msg( 'brokenredirectstext' )->parseAsBlock(); |
74 | } |
75 | |
76 | public function getQueryInfo() { |
77 | $dbr = $this->getDatabaseProvider()->getReplicaDatabase(); |
78 | |
79 | return [ |
80 | 'tables' => [ |
81 | 'redirect', |
82 | 'p1' => 'page', |
83 | 'p2' => 'page', |
84 | ], |
85 | 'fields' => [ |
86 | 'namespace' => 'p1.page_namespace', |
87 | 'title' => 'p1.page_title', |
88 | 'rd_namespace', |
89 | 'rd_title', |
90 | 'rd_fragment', |
91 | ], |
92 | 'conds' => [ |
93 | // Exclude pages that don't exist locally as wiki pages, but aren't "broken" either: special |
94 | // pages and interwiki links. |
95 | $dbr->expr( 'rd_namespace', '>=', 0 ), |
96 | 'rd_interwiki' => '', |
97 | 'p2.page_namespace' => null, |
98 | ], |
99 | 'join_conds' => [ |
100 | 'p1' => [ 'JOIN', [ |
101 | 'rd_from=p1.page_id', |
102 | ] ], |
103 | 'p2' => [ 'LEFT JOIN', [ |
104 | 'rd_namespace=p2.page_namespace', |
105 | 'rd_title=p2.page_title' |
106 | ] ], |
107 | ], |
108 | ]; |
109 | } |
110 | |
111 | /** |
112 | * @return array |
113 | */ |
114 | protected function getOrderFields() { |
115 | return [ 'rd_namespace', 'rd_title', 'rd_from' ]; |
116 | } |
117 | |
118 | /** |
119 | * @param Skin $skin |
120 | * @param \stdClass $result Result row |
121 | * @return string |
122 | */ |
123 | public function formatResult( $skin, $result ) { |
124 | $fromObj = Title::makeTitle( $result->namespace, $result->title ); |
125 | if ( isset( $result->rd_title ) ) { |
126 | $toObj = Title::makeTitle( |
127 | $result->rd_namespace, |
128 | $result->rd_title, |
129 | $result->rd_fragment |
130 | ); |
131 | } else { |
132 | $toObj = false; |
133 | } |
134 | |
135 | $linkRenderer = $this->getLinkRenderer(); |
136 | |
137 | // $toObj may very easily be false if the $result list is cached |
138 | if ( !is_object( $toObj ) ) { |
139 | return '<del>' . $linkRenderer->makeLink( $fromObj ) . '</del>'; |
140 | } |
141 | |
142 | $from = $linkRenderer->makeKnownLink( |
143 | $fromObj, |
144 | null, |
145 | [], |
146 | [ 'redirect' => 'no' ] |
147 | ); |
148 | $links = []; |
149 | // if the page is editable, add an edit link |
150 | if ( |
151 | // check user permissions |
152 | $this->getAuthority()->isAllowed( 'edit' ) && |
153 | // check, if the content model is editable through action=edit |
154 | $this->contentHandlerFactory->getContentHandler( $fromObj->getContentModel() ) |
155 | ->supportsDirectEditing() |
156 | ) { |
157 | $links[] = $linkRenderer->makeKnownLink( |
158 | $fromObj, |
159 | $this->msg( 'brokenredirects-edit' )->text(), |
160 | [], |
161 | [ 'action' => 'edit' ] |
162 | ); |
163 | } |
164 | $to = $linkRenderer->makeBrokenLink( $toObj, $toObj->getFullText() ); |
165 | $arr = $this->getLanguage()->getArrow(); |
166 | |
167 | $out = $from . $this->msg( 'word-separator' )->escaped(); |
168 | |
169 | if ( $this->getAuthority()->isAllowed( 'delete' ) ) { |
170 | $links[] = $linkRenderer->makeKnownLink( |
171 | $fromObj, |
172 | $this->msg( 'brokenredirects-delete' )->text(), |
173 | [], |
174 | [ |
175 | 'action' => 'delete', |
176 | 'wpReason' => $this->msg( 'brokenredirects-delete-reason' ) |
177 | ->inContentLanguage() |
178 | ->text() |
179 | ] |
180 | ); |
181 | } |
182 | |
183 | if ( $links ) { |
184 | $out .= $this->msg( 'parentheses' )->rawParams( $this->getLanguage() |
185 | ->pipeList( $links ) )->escaped(); |
186 | } |
187 | $out .= " {$arr} {$to}"; |
188 | |
189 | return $out; |
190 | } |
191 | |
192 | public function execute( $par ) { |
193 | $this->addHelpLink( 'Help:Redirects' ); |
194 | parent::execute( $par ); |
195 | } |
196 | |
197 | /** |
198 | * Cache page content model for performance |
199 | * |
200 | * @param IDatabase $db |
201 | * @param IResultWrapper $res |
202 | */ |
203 | public function preprocessResults( $db, $res ) { |
204 | $this->executeLBFromResultWrapper( $res ); |
205 | } |
206 | |
207 | protected function getGroupName() { |
208 | return 'maintenance'; |
209 | } |
210 | } |
211 | |
212 | /** @deprecated class alias since 1.41 */ |
213 | class_alias( SpecialBrokenRedirects::class, 'SpecialBrokenRedirects' ); |