Merge "Log entries can be rendered with parentheses in HTML"
[lhc/web/wiklou.git] / includes / specials / SpecialBrokenRedirects.php
1 <?php
2 /**
3 * Implements Special:Brokenredirects
4 *
5 * This program is free software; you can redistribute it and/or modify
6 * it under the terms of the GNU General Public License as published by
7 * the Free Software Foundation; either version 2 of the License, or
8 * (at your option) any later version.
9 *
10 * This program is distributed in the hope that it will be useful,
11 * but WITHOUT ANY WARRANTY; without even the implied warranty of
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
13 * GNU General Public License for more details.
14 *
15 * You should have received a copy of the GNU General Public License along
16 * with this program; if not, write to the Free Software Foundation, Inc.,
17 * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
18 * http://www.gnu.org/copyleft/gpl.html
19 *
20 * @file
21 * @ingroup SpecialPage
22 */
23
24 use MediaWiki\MediaWikiServices;
25 use Wikimedia\Rdbms\IResultWrapper;
26 use Wikimedia\Rdbms\IDatabase;
27
28 /**
29 * A special page listing redirects to non existent page. Those should be
30 * fixed to point to an existing page.
31 *
32 * @ingroup SpecialPage
33 */
34 class SpecialBrokenRedirects extends QueryPage {
35 function __construct( $name = 'BrokenRedirects' ) {
36 parent::__construct( $name );
37 }
38
39 public function isExpensive() {
40 return true;
41 }
42
43 function isSyndicated() {
44 return false;
45 }
46
47 function sortDescending() {
48 return false;
49 }
50
51 function getPageHeader() {
52 return $this->msg( 'brokenredirectstext' )->parseAsBlock();
53 }
54
55 public function getQueryInfo() {
56 $dbr = wfGetDB( DB_REPLICA );
57
58 return [
59 'tables' => [
60 'redirect',
61 'p1' => 'page',
62 'p2' => 'page',
63 ],
64 'fields' => [
65 'namespace' => 'p1.page_namespace',
66 'title' => 'p1.page_title',
67 'value' => 'p1.page_title',
68 'rd_namespace',
69 'rd_title',
70 'rd_fragment',
71 ],
72 'conds' => [
73 // Exclude pages that don't exist locally as wiki pages,
74 // but aren't "broken" either.
75 // Special pages and interwiki links
76 'rd_namespace >= 0',
77 'rd_interwiki IS NULL OR rd_interwiki = ' . $dbr->addQuotes( '' ),
78 'p2.page_namespace IS NULL',
79 ],
80 'join_conds' => [
81 'p1' => [ 'JOIN', [
82 'rd_from=p1.page_id',
83 ] ],
84 'p2' => [ 'LEFT JOIN', [
85 'rd_namespace=p2.page_namespace',
86 'rd_title=p2.page_title'
87 ] ],
88 ],
89 ];
90 }
91
92 /**
93 * @return array
94 */
95 function getOrderFields() {
96 return [ 'rd_namespace', 'rd_title', 'rd_from' ];
97 }
98
99 /**
100 * @param Skin $skin
101 * @param object $result Result row
102 * @return string
103 */
104 function formatResult( $skin, $result ) {
105 $fromObj = Title::makeTitle( $result->namespace, $result->title );
106 if ( isset( $result->rd_title ) ) {
107 $toObj = Title::makeTitle( $result->rd_namespace, $result->rd_title, $result->rd_fragment );
108 } else {
109 $blinks = $fromObj->getBrokenLinksFrom(); # TODO: check for redirect, not for links
110 if ( $blinks ) {
111 $toObj = $blinks[0];
112 } else {
113 $toObj = false;
114 }
115 }
116
117 $linkRenderer = $this->getLinkRenderer();
118 $permissionManager = MediaWikiServices::getInstance()->getPermissionManager();
119
120 // $toObj may very easily be false if the $result list is cached
121 if ( !is_object( $toObj ) ) {
122 return '<del>' . $linkRenderer->makeLink( $fromObj ) . '</del>';
123 }
124
125 $from = $linkRenderer->makeKnownLink(
126 $fromObj,
127 null,
128 [],
129 [ 'redirect' => 'no' ]
130 );
131 $links = [];
132 // if the page is editable, add an edit link
133 if (
134 // check user permissions
135 $permissionManager->userHasRight( $this->getUser(), 'edit' ) &&
136 // check, if the content model is editable through action=edit
137 ContentHandler::getForTitle( $fromObj )->supportsDirectEditing()
138 ) {
139 $links[] = $linkRenderer->makeKnownLink(
140 $fromObj,
141 $this->msg( 'brokenredirects-edit' )->text(),
142 [],
143 [ 'action' => 'edit' ]
144 );
145 }
146 $to = $linkRenderer->makeBrokenLink( $toObj, $toObj->getFullText() );
147 $arr = $this->getLanguage()->getArrow();
148
149 $out = $from . $this->msg( 'word-separator' )->escaped();
150
151 if ( $permissionManager->userHasRight( $this->getUser(), 'delete' ) ) {
152 $links[] = $linkRenderer->makeKnownLink(
153 $fromObj,
154 $this->msg( 'brokenredirects-delete' )->text(),
155 [],
156 [ 'action' => 'delete' ]
157 );
158 }
159
160 if ( $links ) {
161 $out .= $this->msg( 'parentheses' )->rawParams( $this->getLanguage()
162 ->pipeList( $links ) )->escaped();
163 }
164 $out .= " {$arr} {$to}";
165
166 return $out;
167 }
168
169 public function execute( $par ) {
170 $this->addHelpLink( 'Help:Redirects' );
171 parent::execute( $par );
172 }
173
174 /**
175 * Cache page content model for performance
176 *
177 * @param IDatabase $db
178 * @param IResultWrapper $res
179 */
180 function preprocessResults( $db, $res ) {
181 $this->executeLBFromResultWrapper( $res );
182 }
183
184 protected function getGroupName() {
185 return 'maintenance';
186 }
187 }