TrackingCategories.php

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<?php
use MediaWiki\MediaWikiServices;
 
class TrackingCategories {
    private $config;
 
    private static $coreTrackingCategories = [
        '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',
        'template-loop-category',
    ];
 
    public function __construct( Config $config ) {
        $this->config = $config;
    }
 
    public function getTrackingCategories() {
        $categories = array_merge(
            self::$coreTrackingCategories,
            ExtensionRegistry::getInstance()->getAttribute( 'TrackingCategories' ),
            $this->config->get( 'TrackingCategories' ) // deprecated
        );
 
        // Only show magic link tracking categories if they are enabled
        $enableMagicLinks = $this->config->get( 'EnableMagicLinks' );
        if ( $enableMagicLinks['ISBN'] ) {
            $categories[] = 'magiclink-tracking-isbn';
        }
        if ( $enableMagicLinks['RFC'] ) {
            $categories[] = 'magiclink-tracking-rfc';
        }
        if ( $enableMagicLinks['PMID'] ) {
            $categories[] = 'magiclink-tracking-pmid';
        }
 
        $trackingCategories = [];
        $nsInfo = MediaWikiServices::getInstance()->getNamespaceInfo();
        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
             */
            $msgObj = wfMessage( $catMsg )->inContentLanguage();
            $allCats = [];
            $catMsgTitle = Title::makeTitleSafe( NS_MEDIAWIKI, $catMsg );
            if ( !$catMsgTitle ) {
                continue;
            }
 
            // Match things like {{NAMESPACE}} and {{NAMESPACENUMBER}}.
            // False positives are ok, this is just an efficiency shortcut
            if ( strpos( $msgObj->plain(), '{{' ) !== false ) {
                $ns = $nsInfo->getValidNamespaces();
                foreach ( $ns as $namesp ) {
                    $tempTitle = Title::makeTitleSafe( $namesp, $catMsg );
                    if ( !$tempTitle ) {
                        continue;
                    }
                    $catName = $msgObj->page( $tempTitle )->text();
                    # Allow tracking categories to be disabled by setting them to "-"
                    if ( $catName !== '-' ) {
                        $catTitle = Title::makeTitleSafe( NS_CATEGORY, $catName );
                        if ( $catTitle ) {
                            $allCats[] = $catTitle;
                        }
                    }
                }
            } else {
                $catName = $msgObj->text();
                # Allow tracking categories to be disabled by setting them to "-"
                if ( $catName !== '-' ) {
                    $catTitle = Title::makeTitleSafe( NS_CATEGORY, $catName );
                    if ( $catTitle ) {
                        $allCats[] = $catTitle;
                    }
                }
            }
            $trackingCategories[$catMsg] = [
                'cats' => $allCats,
                'msg' => $catMsgTitle,
            ];
        }
 
        return $trackingCategories;
    }
}