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<?php
/**
* This file is part of MediaWiki.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License along
* with this program; if not, write to the Free Software Foundation, Inc.,
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
* http://www.gnu.org/copyleft/gpl.html
*
* @file
*/
namespace MediaWiki\Revision;
use MediaWiki\Content\IContentHandlerFactory;
use MediaWiki\Exception\MWUnknownContentModelException;
use MediaWiki\HookContainer\HookContainer;
use MediaWiki\HookContainer\HookRunner;
use MediaWiki\Linker\LinkTarget;
use MediaWiki\Page\PageIdentity;
use MediaWiki\Title\TitleFactory;
/**
* A SlotRoleHandler for the main slot. While most slot roles serve a specific purpose and
* thus typically exhibit the same behaviour on all pages, the main slot is used for different
* things in different pages, typically depending on the namespace, a "file extension" in
* the page name, or the content model of the slot's content.
*
* MainSlotRoleHandler implements some of the per-namespace and per-model behavior that was
* supported prior to MediaWiki Version 1.33.
*
* @since 1.33
*/
class MainSlotRoleHandler extends SlotRoleHandler {
/**
* @var string[] A mapping of namespaces to content models.
* @see $wgNamespaceContentModels
*/
private $namespaceContentModels;
/** @var IContentHandlerFactory */
private $contentHandlerFactory;
/** @var HookRunner */
private $hookRunner;
/** @var TitleFactory */
private $titleFactory;
/**
* @param string[] $namespaceContentModels A mapping of namespaces to content models,
* typically from $wgNamespaceContentModels.
* @param IContentHandlerFactory $contentHandlerFactory
* @param HookContainer $hookContainer
* @param TitleFactory $titleFactory
*/
public function __construct(
array $namespaceContentModels,
IContentHandlerFactory $contentHandlerFactory,
HookContainer $hookContainer,
TitleFactory $titleFactory
) {
parent::__construct( SlotRecord::MAIN, CONTENT_MODEL_WIKITEXT );
$this->namespaceContentModels = $namespaceContentModels;
$this->contentHandlerFactory = $contentHandlerFactory;
$this->hookRunner = new HookRunner( $hookContainer );
$this->titleFactory = $titleFactory;
}
public function supportsArticleCount() {
return true;
}
/**
* @param string $model
* @param PageIdentity $page
*
* @return bool
* @throws MWUnknownContentModelException
*/
public function isAllowedModel( $model, PageIdentity $page ) {
$title = $this->titleFactory->newFromPageIdentity( $page );
$handler = $this->contentHandlerFactory->getContentHandler( $model );
return $handler->canBeUsedOn( $title );
}
/**
* @param LinkTarget|PageIdentity $page
*
* @return string
*/
public function getDefaultModel( $page ) {
// NOTE: this method must not rely on $title->getContentModel() directly or indirectly,
// because it is used to initialize the mContentModel member.
$ext = '';
$ns = $page->getNamespace();
$model = $this->namespaceContentModels[$ns] ?? null;
// Hook can determine default model
if ( $page instanceof PageIdentity ) {
$title = $this->titleFactory->newFromPageIdentity( $page );
} else {
$title = $this->titleFactory->newFromLinkTarget( $page );
}
// @phan-suppress-next-line PhanTypeMismatchArgument Type mismatch on pass-by-ref args
if ( !$this->hookRunner->onContentHandlerDefaultModelFor( $title, $model ) && $model !== null ) {
return $model;
}
// Could this page contain code based on the title?
$isCodePage = $ns === NS_MEDIAWIKI && preg_match( '!\.(css|js|json)$!u', $title->getText(), $m );
if ( $isCodePage ) {
$ext = $m[1];
}
// Is this a user subpage containing code?
$isCodeSubpage = $ns === NS_USER
&& !$isCodePage
&& preg_match( "/\\/.*\\.(js|css|json)$/", $title->getText(), $m );
if ( $isCodeSubpage ) {
$ext = $m[1];
}
// Is this wikitext, according to $wgNamespaceContentModels or the DefaultModelFor hook?
$isWikitext = $model === null || $model == CONTENT_MODEL_WIKITEXT;
$isWikitext = $isWikitext && !$isCodePage && !$isCodeSubpage;
if ( !$isWikitext ) {
switch ( $ext ) {
case 'js':
return CONTENT_MODEL_JAVASCRIPT;
case 'css':
return CONTENT_MODEL_CSS;
case 'json':
return CONTENT_MODEL_JSON;
default:
return $model ?? CONTENT_MODEL_TEXT;
}
}
// We established that it must be wikitext
return CONTENT_MODEL_WIKITEXT;
}
}
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