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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 | * |
17 | * @file |
18 | */ |
19 | |
20 | declare( strict_types=1 ); |
21 | |
22 | namespace MediaWiki\Extension\WikiSEO\Hooks; |
23 | |
24 | use Config; |
25 | use DeferrableUpdate; |
26 | use ExtensionRegistry; |
27 | use Html; |
28 | use MediaWiki\Extension\WikiSEO\DeferredDescriptionUpdate; |
29 | use MediaWiki\Extension\WikiSEO\OverwritePageImageProp; |
30 | use MediaWiki\Extension\WikiSEO\WikiSEO; |
31 | use MediaWiki\Hook\BeforePageDisplayHook; |
32 | use MediaWiki\Revision\RenderedRevision; |
33 | use MediaWiki\Storage\Hook\RevisionDataUpdatesHook; |
34 | use OutputPage; |
35 | use ParserOutput; |
36 | use Skin; |
37 | use Title; |
38 | |
39 | /** |
40 | * Hooks to run relating the page |
41 | */ |
42 | class PageHooks implements BeforePageDisplayHook, RevisionDataUpdatesHook { |
43 | /** |
44 | * @var Config |
45 | */ |
46 | private $mainConfig; |
47 | |
48 | /** |
49 | * PageHooks constructor. |
50 | * |
51 | * @param Config $config |
52 | */ |
53 | public function __construct( Config $config ) { |
54 | $this->mainConfig = $config; |
55 | } |
56 | |
57 | /** |
58 | * Queries the page properties for WikiSEO data and adds it as meta tags |
59 | * |
60 | * @see https://www.mediawiki.org/wiki/Manual:Hooks/BeforePageDisplay |
61 | * |
62 | * @param OutputPage $out |
63 | * @param Skin $skin |
64 | */ |
65 | public function onBeforePageDisplay( $out, $skin ): void { |
66 | $seo = new WikiSEO(); |
67 | $seo->setMetadataFromPageProps( $out ); |
68 | $seo->addMetadataToPage( $out ); |
69 | } |
70 | |
71 | /** |
72 | * If WikiSeoEnableAutoDescription is enabled _and_ no manual description was defined |
73 | * We'll push a deferred DescriptionUpdate |
74 | * |
75 | * @param Title $title |
76 | * @param RenderedRevision $renderedRevision |
77 | * @param DeferrableUpdate[] &$updates |
78 | * @return void |
79 | * @see DeferredDescriptionUpdate |
80 | */ |
81 | public function onRevisionDataUpdates( $title, $renderedRevision, &$updates ): void { |
82 | $output = $renderedRevision->getRevisionParserOutput(); |
83 | |
84 | if ( $output === null ) { |
85 | return; |
86 | } |
87 | |
88 | $this->overwritePageImageProp( $title, $output, $updates ); |
89 | |
90 | $autoEnabled = $this->mainConfig->get( 'WikiSeoEnableAutoDescription' ); |
91 | |
92 | $currentDescription = $output->getPageProperty( 'description' ); |
93 | $manualDescription = $output->getPageProperty( 'manualDescription' ); |
94 | |
95 | if ( !$autoEnabled || $manualDescription === true ) { |
96 | return; |
97 | } |
98 | |
99 | $updates[] = new DeferredDescriptionUpdate( |
100 | $title, |
101 | $currentDescription !== false ? $currentDescription : null, |
102 | $this->mainConfig->get( 'WikiSeoTryCleanAutoDescription' ) |
103 | ); |
104 | } |
105 | |
106 | /** |
107 | * Overwrite page prop 'page_imgaes_free' if PageImages is loaded and 'wgWikiSeoOverwritePageImage' is true |
108 | * |
109 | * @param Title $title |
110 | * @param ParserOutput $output |
111 | * @param array &$updates |
112 | * @return void |
113 | */ |
114 | private function overwritePageImageProp( Title $title, ParserOutput $output, &$updates ) { |
115 | if ( !$this->mainConfig->get( 'WikiSeoOverwritePageImage' ) || |
116 | $output->getPageProperty( 'image' ) === null || |
117 | !ExtensionRegistry::getInstance()->isLoaded( 'PageImages' ) ) { |
118 | return; |
119 | } |
120 | |
121 | $updates[] = new OverwritePageImageProp( |
122 | $title, |
123 | $output->getPageProperty( 'image' ) |
124 | ); |
125 | } |
126 | |
127 | /** |
128 | * Sets, or overwrites, the '<link rel="canonical"' tag within the page HTML head, |
129 | * if the "canonical" parameter was set. |
130 | * |
131 | * @see https://www.mediawiki.org/wiki/Manual:Hooks/OutputPageAfterGetHeadLinksArray |
132 | * |
133 | * @param string[] &$tags |
134 | * @param OutputPage $output |
135 | */ |
136 | public function onOutputPageAfterGetHeadLinksArray( &$tags, OutputPage $output ) { |
137 | $seo = new WikiSEO(); |
138 | $seo->setMetadataFromPageProps( $output ); |
139 | $canonicalTitle = $seo->getMetadataValue( 'canonical' ); |
140 | if ( empty( $canonicalTitle ) ) { |
141 | return; |
142 | } |
143 | |
144 | // Annoyingly, when MediaWiki adds a canonical link (when |
145 | // $wgEnableCanonicalServerLink is true), it uses a numeric |
146 | // key for it, rather than an obvious key like 'canonical'. |
147 | // So in order to overwrite it, |
148 | // we have to manually find this tag in the array. |
149 | $canonicalKey = 'canonical'; |
150 | foreach ( $tags as $key => $tag ) { |
151 | if ( strpos( $tag, '<link rel="canonical"' ) !== false ) { |
152 | $canonicalKey = $key; |
153 | break; |
154 | } |
155 | } |
156 | $tags[$canonicalKey] = Html::element( |
157 | 'link', [ |
158 | 'rel' => 'canonical', |
159 | 'href' => $canonicalTitle |
160 | ] |
161 | ); |
162 | } |
163 | } |