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1 | <?php |
2 | /** |
3 | * This file is part of MediaWiki. |
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 | */ |
22 | |
23 | namespace MediaWiki\Revision; |
24 | |
25 | use MediaWiki\Content\IContentHandlerFactory; |
26 | use MediaWiki\HookContainer\HookContainer; |
27 | use MediaWiki\HookContainer\HookRunner; |
28 | use MediaWiki\Linker\LinkTarget; |
29 | use MediaWiki\Page\PageIdentity; |
30 | use MediaWiki\Title\TitleFactory; |
31 | use MWUnknownContentModelException; |
32 | |
33 | /** |
34 | * A SlotRoleHandler for the main slot. While most slot roles serve a specific purpose and |
35 | * thus typically exhibit the same behaviour on all pages, the main slot is used for different |
36 | * things in different pages, typically depending on the namespace, a "file extension" in |
37 | * the page name, or the content model of the slot's content. |
38 | * |
39 | * MainSlotRoleHandler implements some of the per-namespace and per-model behavior that was |
40 | * supported prior to MediaWiki Version 1.33. |
41 | * |
42 | * @since 1.33 |
43 | */ |
44 | class MainSlotRoleHandler extends SlotRoleHandler { |
45 | |
46 | /** |
47 | * @var string[] A mapping of namespaces to content models. |
48 | * @see $wgNamespaceContentModels |
49 | */ |
50 | private $namespaceContentModels; |
51 | |
52 | /** @var IContentHandlerFactory */ |
53 | private $contentHandlerFactory; |
54 | |
55 | /** @var HookRunner */ |
56 | private $hookRunner; |
57 | |
58 | /** @var TitleFactory */ |
59 | private $titleFactory; |
60 | |
61 | /** |
62 | * @param string[] $namespaceContentModels A mapping of namespaces to content models, |
63 | * typically from $wgNamespaceContentModels. |
64 | * @param IContentHandlerFactory $contentHandlerFactory |
65 | * @param HookContainer $hookContainer |
66 | * @param TitleFactory $titleFactory |
67 | */ |
68 | public function __construct( |
69 | array $namespaceContentModels, |
70 | IContentHandlerFactory $contentHandlerFactory, |
71 | HookContainer $hookContainer, |
72 | TitleFactory $titleFactory |
73 | ) { |
74 | parent::__construct( SlotRecord::MAIN, CONTENT_MODEL_WIKITEXT ); |
75 | $this->namespaceContentModels = $namespaceContentModels; |
76 | $this->contentHandlerFactory = $contentHandlerFactory; |
77 | $this->hookRunner = new HookRunner( $hookContainer ); |
78 | $this->titleFactory = $titleFactory; |
79 | } |
80 | |
81 | public function supportsArticleCount() { |
82 | return true; |
83 | } |
84 | |
85 | /** |
86 | * @param string $model |
87 | * @param PageIdentity $page |
88 | * |
89 | * @return bool |
90 | * @throws MWUnknownContentModelException |
91 | */ |
92 | public function isAllowedModel( $model, PageIdentity $page ) { |
93 | $title = $this->titleFactory->newFromPageIdentity( $page ); |
94 | $handler = $this->contentHandlerFactory->getContentHandler( $model ); |
95 | |
96 | return $handler->canBeUsedOn( $title ); |
97 | } |
98 | |
99 | /** |
100 | * @param LinkTarget|PageIdentity $page |
101 | * |
102 | * @return string |
103 | */ |
104 | public function getDefaultModel( $page ) { |
105 | // NOTE: this method must not rely on $title->getContentModel() directly or indirectly, |
106 | // because it is used to initialize the mContentModel member. |
107 | |
108 | $ext = ''; |
109 | $ns = $page->getNamespace(); |
110 | $model = $this->namespaceContentModels[$ns] ?? null; |
111 | |
112 | // Hook can determine default model |
113 | if ( $page instanceof PageIdentity ) { |
114 | $title = $this->titleFactory->newFromPageIdentity( $page ); |
115 | } else { |
116 | $title = $this->titleFactory->newFromLinkTarget( $page ); |
117 | } |
118 | // @phan-suppress-next-line PhanTypeMismatchArgument Type mismatch on pass-by-ref args |
119 | if ( !$this->hookRunner->onContentHandlerDefaultModelFor( $title, $model ) && $model !== null ) { |
120 | return $model; |
121 | } |
122 | |
123 | // Could this page contain code based on the title? |
124 | $isCodePage = $ns === NS_MEDIAWIKI && preg_match( '!\.(css|js|json)$!u', $title->getText(), $m ); |
125 | if ( $isCodePage ) { |
126 | $ext = $m[1]; |
127 | } |
128 | |
129 | // Is this a user subpage containing code? |
130 | $isCodeSubpage = $ns === NS_USER |
131 | && !$isCodePage |
132 | && preg_match( "/\\/.*\\.(js|css|json)$/", $title->getText(), $m ); |
133 | |
134 | if ( $isCodeSubpage ) { |
135 | $ext = $m[1]; |
136 | } |
137 | |
138 | // Is this wikitext, according to $wgNamespaceContentModels or the DefaultModelFor hook? |
139 | $isWikitext = $model === null || $model == CONTENT_MODEL_WIKITEXT; |
140 | $isWikitext = $isWikitext && !$isCodePage && !$isCodeSubpage; |
141 | |
142 | if ( !$isWikitext ) { |
143 | switch ( $ext ) { |
144 | case 'js': |
145 | return CONTENT_MODEL_JAVASCRIPT; |
146 | case 'css': |
147 | return CONTENT_MODEL_CSS; |
148 | case 'json': |
149 | return CONTENT_MODEL_JSON; |
150 | default: |
151 | return $model ?? CONTENT_MODEL_TEXT; |
152 | } |
153 | } |
154 | |
155 | // We established that it must be wikitext |
156 | |
157 | return CONTENT_MODEL_WIKITEXT; |
158 | } |
159 | |
160 | } |