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<?php
/**
* 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
* @ingroup Categories
*/
namespace MediaWiki\Category;
use MediaWiki\Config\ServiceOptions;
use MediaWiki\Linker\LinkTarget;
use MediaWiki\MainConfigNames;
use MediaWiki\Page\PageReference;
use MediaWiki\Parser\Parser;
use MediaWiki\Registration\ExtensionRegistry;
use MediaWiki\Title\NamespaceInfo;
use MediaWiki\Title\Title;
use MediaWiki\Title\TitleParser;
use Psr\Log\LoggerInterface;
use Wikimedia\Parsoid\Core\ContentMetadataCollector;
/**
* This class performs some operations related to tracking categories, such as
* adding a tracking category to a ParserOutput, and creating a list of all
* such categories.
* @since 1.29
*/
class TrackingCategories {
/**
* @internal For use by ServiceWiring
*/
public const CONSTRUCTOR_OPTIONS = [
MainConfigNames::TrackingCategories,
MainConfigNames::EnableMagicLinks,
];
/** @var ServiceOptions */
private $options;
/** @var NamespaceInfo */
private $namespaceInfo;
/** @var TitleParser */
private $titleParser;
/** @var ExtensionRegistry */
private $extensionRegistry;
/** @var LoggerInterface */
private $logger;
/**
* Tracking categories that exist in core
*/
private const CORE_TRACKING_CATEGORIES = [
'broken-file-category',
'duplicate-args-category',
'expansion-depth-exceeded-category',
'expensive-parserfunction-category',
'hidden-category-category',
'index-category',
'node-count-exceeded-category',
'noindex-category',
'nonnumeric-formatnum',
'post-expand-template-argument-category',
'post-expand-template-inclusion-category',
'restricted-displaytitle-ignored',
# template-equals-category is unused in MW>=1.39, but the category
# can be left around for a major release or so for an easier
# transition for anyone who didn't do the cleanup. T91154
'template-equals-category',
'template-loop-category',
'unstrip-depth-category',
'unstrip-size-category',
'bad-language-code-category',
'double-px-category',
];
public function __construct(
ServiceOptions $options,
NamespaceInfo $namespaceInfo,
TitleParser $titleParser,
LoggerInterface $logger
) {
$options->assertRequiredOptions( self::CONSTRUCTOR_OPTIONS );
$this->options = $options;
$this->namespaceInfo = $namespaceInfo;
$this->titleParser = $titleParser;
$this->logger = $logger;
// TODO convert ExtensionRegistry to a service and inject it
$this->extensionRegistry = ExtensionRegistry::getInstance();
}
/**
* Read the global and extract title objects from the corresponding messages
*
* TODO consider renaming this method, since this class is retrieved from
* MediaWikiServices, resulting in calls like:
* MediaWikiServices::getInstance()->getTrackingCategories()->getTrackingCategories()
*
* @return array[] [ 'msg' => LinkTarget, 'cats' => LinkTarget[] ]
* @phan-return array<string,array{msg:LinkTarget,cats:LinkTarget[]}>
*/
public function getTrackingCategories() {
$categories = array_merge(
self::CORE_TRACKING_CATEGORIES,
$this->extensionRegistry->getAttribute( MainConfigNames::TrackingCategories ),
$this->options->get( MainConfigNames::TrackingCategories ) // deprecated
);
// Only show magic link tracking categories if they are enabled
$enableMagicLinks = $this->options->get( MainConfigNames::EnableMagicLinks );
if ( $enableMagicLinks['ISBN'] ) {
$categories[] = 'magiclink-tracking-isbn';
}
if ( $enableMagicLinks['RFC'] ) {
$categories[] = 'magiclink-tracking-rfc';
}
if ( $enableMagicLinks['PMID'] ) {
$categories[] = 'magiclink-tracking-pmid';
}
$trackingCategories = [];
foreach ( $categories as $catMsg ) {
/*
* Check if the tracking category varies by namespace
* Otherwise only pages in the current namespace will be displayed
* If it does vary, show pages considering all namespaces
*
* TODO replace uses of wfMessage with an injected service once that is available
*/
$msgObj = wfMessage( $catMsg )->inContentLanguage();
$allCats = [];
$catMsgTitle = $this->titleParser->makeTitleValueSafe( NS_MEDIAWIKI, $catMsg );
if ( !$catMsgTitle ) {
continue;
}
// Match things like {{NAMESPACE}} and {{NAMESPACENUMBER}}.
// False positives are ok, this is just an efficiency shortcut
if ( str_contains( $msgObj->plain(), '{{' ) ) {
$ns = $this->namespaceInfo->getValidNamespaces();
foreach ( $ns as $namesp ) {
$tempTitle = $this->titleParser->makeTitleValueSafe( $namesp, $catMsg );
if ( !$tempTitle ) {
continue;
}
// XXX: should be a better way to convert a TitleValue
// to a PageReference!
$tempTitle = Title::newFromLinkTarget( $tempTitle );
$allCats[] = $msgObj->page( $tempTitle )->text();
}
} else {
$allCats[] = $msgObj->text();
}
$titles = [];
foreach ( $allCats as $catName ) {
// Extra check in case a message does fancy stuff with {{#if:… and such
if ( $catName !== '-' ) {
$catTitle = $this->titleParser->makeTitleValueSafe( NS_CATEGORY, $catName );
if ( $catTitle ) {
$titles[] = $catTitle;
}
}
}
$trackingCategories[$catMsg] = [
'cats' => $titles,
'msg' => $catMsgTitle,
];
}
return $trackingCategories;
}
/**
* Resolve a tracking category.
* @param string $msg Message key
* @param ?PageReference $contextPage Context page title
* @return ?LinkTarget the proper category page, or null if
* the tracking category is disabled or unsafe
* @since 1.38
*/
public function resolveTrackingCategory( string $msg, ?PageReference $contextPage ): ?LinkTarget {
if ( !$contextPage ) {
$this->logger->debug( "Not adding tracking category $msg to missing page!" );
return null;
}
if ( $contextPage->getNamespace() === NS_SPECIAL ) {
$this->logger->debug( "Not adding tracking category $msg to special page!" );
return null;
}
// Important to parse with correct title (T33469)
// TODO replace uses of wfMessage with an injected service once that is available
$cat = wfMessage( $msg )
->page( $contextPage )
->inContentLanguage()
->text();
# Allow tracking categories to be disabled by setting them to "-"
if ( $cat === '-' ) {
return null;
}
$containerCategory = $this->titleParser->makeTitleValueSafe( NS_CATEGORY, $cat );
if ( $containerCategory === null ) {
$this->logger->debug( "[[MediaWiki:$msg]] is not a valid title!" );
return null;
}
return $containerCategory;
}
/**
* Add a tracking category to a ParserOutput, getting the title from a
* system message.
*
* Any message used with this function should be registered so it will
* show up on [[Special:TrackingCategories]]. Core messages should be
* added to TrackingCategories::CORE_TRACKING_CATEGORIES, and extensions
* should add to "TrackingCategories" in their extension.json.
*
* @param ContentMetadataCollector $parserOutput The target ParserOutput which will
* store the new category
* @param string $msg Message key
* @param ?PageReference $contextPage Context page title
* @return bool Whether the addition was successful
* @since 1.38
* @see Parser::addTrackingCategory
*/
public function addTrackingCategory(
ContentMetadataCollector $parserOutput,
string $msg,
?PageReference $contextPage
): bool {
$categoryPage = $this->resolveTrackingCategory( $msg, $contextPage );
if ( $categoryPage === null ) {
return false;
}
$parserOutput->addCategory( $categoryPage );
return true;
}
}