includes/ServiceWiring.php

   1 <?php
   2 /**
   3  * Default wiring for MediaWiki services.
   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  * This file is loaded by MediaWiki\MediaWikiServices::getInstance() during the
  23  * bootstrapping of the dependency injection framework.
  24  *
  25  * This file returns an array that associates service name with instantiator functions
  26  * that create the default instances for the services used by MediaWiki core.
  27  * For every service that MediaWiki core requires, an instantiator must be defined in
  28  * this file.
  29  *
  30  * @note As of version 1.27, MediaWiki is only beginning to use dependency injection.
  31  * The services defined here do not yet fully represent all services used by core,
  32  * much of the code still relies on global state for this accessing services.
  33  *
  34  * @since 1.27
  35  *
  36  * @see docs/injection.txt for an overview of using dependency injection in the
  37  *      MediaWiki code base.
  38  */
  39
  40 use Liuggio\StatsdClient\Factory\StatsdDataFactoryInterface;
  41 use MediaWiki\Auth\AuthManager;
  42 use MediaWiki\Config\ConfigRepository;
  43 use MediaWiki\Interwiki\ClassicInterwikiLookup;
  44 use MediaWiki\Interwiki\InterwikiLookup;
  45 use MediaWiki\Linker\LinkRenderer;
  46 use MediaWiki\Linker\LinkRendererFactory;
  47 use MediaWiki\Logger\LoggerFactory;
  48 use MediaWiki\MediaWikiServices;
  49 use MediaWiki\Preferences\PreferencesFactory;
  50 use MediaWiki\Preferences\DefaultPreferencesFactory;
  51 use MediaWiki\Shell\CommandFactory;
  52 use MediaWiki\Special\SpecialPageFactory;
  53 use MediaWiki\Storage\BlobStore;
  54 use MediaWiki\Revision\RevisionRenderer;
  55 use MediaWiki\Storage\BlobStoreFactory;
  56 use MediaWiki\Storage\NameTableStoreFactory;
  57 use MediaWiki\Storage\RevisionFactory;
  58 use MediaWiki\Storage\RevisionLookup;
  59 use MediaWiki\Storage\RevisionStore;
  60 use MediaWiki\Storage\RevisionStoreFactory;
  61 use MediaWiki\Storage\SqlBlobStore;
  62
  63 return [
  64         'ActorMigration' => function ( MediaWikiServices $services ) : ActorMigration {
  65                 return new ActorMigration(
  66                         $services->getMainConfig()->get( 'ActorTableSchemaMigrationStage' )
  67                 );
  68         },
  69
  70         'BlobStore' => function ( MediaWikiServices $services ) : BlobStore {
  71                 return $services->getService( '_SqlBlobStore' );
  72         },
  73
  74         'BlobStoreFactory' => function ( MediaWikiServices $services ) : BlobStoreFactory {
  75                 return new BlobStoreFactory(
  76                         $services->getDBLoadBalancerFactory(),
  77                         $services->getMainWANObjectCache(),
  78                         $services->getMainConfig(),
  79                         $services->getContentLanguage()
  80                 );
  81         },
  82
  83         'CommentStore' => function ( MediaWikiServices $services ) : CommentStore {
  84                 return new CommentStore(
  85                         $services->getContentLanguage(),
  86                         $services->getMainConfig()->get( 'CommentTableSchemaMigrationStage' )
  87                 );
  88         },
  89
  90         'ConfigFactory' => function ( MediaWikiServices $services ) : ConfigFactory {
  91                 // Use the bootstrap config to initialize the ConfigFactory.
  92                 $registry = $services->getBootstrapConfig()->get( 'ConfigRegistry' );
  93                 $factory = new ConfigFactory();
  94
  95                 foreach ( $registry as $name => $callback ) {
  96                         $factory->register( $name, $callback );
  97                 }
  98                 return $factory;
  99         },
 100
 101         'ConfigRepository' => function ( MediaWikiServices $services ) : ConfigRepository {
 102                 return new ConfigRepository( $services->getConfigFactory() );
 103         },
 104
 105         'ConfiguredReadOnlyMode' => function ( MediaWikiServices $services ) : ConfiguredReadOnlyMode {
 106                 return new ConfiguredReadOnlyMode( $services->getMainConfig() );
 107         },
 108
 109         'ContentLanguage' => function ( MediaWikiServices $services ) : Language {
 110                 return Language::factory( $services->getMainConfig()->get( 'LanguageCode' ) );
 111         },
 112
 113         'CryptHKDF' => function ( MediaWikiServices $services ) : CryptHKDF {
 114                 $config = $services->getMainConfig();
 115
 116                 $secret = $config->get( 'HKDFSecret' ) ?: $config->get( 'SecretKey' );
 117                 if ( !$secret ) {
 118                         throw new RuntimeException( "Cannot use MWCryptHKDF without a secret." );
 119                 }
 120
 121                 // In HKDF, the context can be known to the attacker, but this will
 122                 // keep simultaneous runs from producing the same output.
 123                 $context = [ microtime(), getmypid(), gethostname() ];
 124
 125                 // Setup salt cache. Use APC, or fallback to the main cache if it isn't setup
 126                 $cache = $services->getLocalServerObjectCache();
 127                 if ( $cache instanceof EmptyBagOStuff ) {
 128                         $cache = ObjectCache::getLocalClusterInstance();
 129                 }
 130
 131                 return new CryptHKDF( $secret, $config->get( 'HKDFAlgorithm' ), $cache, $context );
 132         },
 133
 134         'CryptRand' => function () : CryptRand {
 135                 return new CryptRand();
 136         },
 137
 138         'DBLoadBalancer' => function ( MediaWikiServices $services ) : Wikimedia\Rdbms\LoadBalancer {
 139                 // just return the default LB from the DBLoadBalancerFactory service
 140                 return $services->getDBLoadBalancerFactory()->getMainLB();
 141         },
 142
 143         'DBLoadBalancerFactory' =>
 144         function ( MediaWikiServices $services ) : Wikimedia\Rdbms\LBFactory {
 145                 $mainConfig = $services->getMainConfig();
 146
 147                 $lbConf = MWLBFactory::applyDefaultConfig(
 148                         $mainConfig->get( 'LBFactoryConf' ),
 149                         $mainConfig,
 150                         $services->getConfiguredReadOnlyMode()
 151                 );
 152                 $class = MWLBFactory::getLBFactoryClass( $lbConf );
 153
 154                 $instance = new $class( $lbConf );
 155                 MWLBFactory::setSchemaAliases( $instance, $mainConfig );
 156
 157                 return $instance;
 158         },
 159
 160         'EventRelayerGroup' => function ( MediaWikiServices $services ) : EventRelayerGroup {
 161                 return new EventRelayerGroup( $services->getMainConfig()->get( 'EventRelayerConfig' ) );
 162         },
 163
 164         'ExternalStoreFactory' => function ( MediaWikiServices $services ) : ExternalStoreFactory {
 165                 $config = $services->getMainConfig();
 166
 167                 return new ExternalStoreFactory(
 168                         $config->get( 'ExternalStores' )
 169                 );
 170         },
 171
 172         'GenderCache' => function ( MediaWikiServices $services ) : GenderCache {
 173                 return new GenderCache();
 174         },
 175
 176         'HttpRequestFactory' =>
 177         function ( MediaWikiServices $services ) : \MediaWiki\Http\HttpRequestFactory {
 178                 return new \MediaWiki\Http\HttpRequestFactory();
 179         },
 180
 181         'InterwikiLookup' => function ( MediaWikiServices $services ) : InterwikiLookup {
 182                 $config = $services->getMainConfig();
 183                 return new ClassicInterwikiLookup(
 184                         $services->getContentLanguage(),
 185                         $services->getMainWANObjectCache(),
 186                         $config->get( 'InterwikiExpiry' ),
 187                         $config->get( 'InterwikiCache' ),
 188                         $config->get( 'InterwikiScopes' ),
 189                         $config->get( 'InterwikiFallbackSite' )
 190                 );
 191         },
 192
 193         'LinkCache' => function ( MediaWikiServices $services ) : LinkCache {
 194                 return new LinkCache(
 195                         $services->getTitleFormatter(),
 196                         $services->getMainWANObjectCache()
 197                 );
 198         },
 199
 200         'LinkRenderer' => function ( MediaWikiServices $services ) : LinkRenderer {
 201                 global $wgUser;
 202
 203                 if ( defined( 'MW_NO_SESSION' ) ) {
 204                         return $services->getLinkRendererFactory()->create();
 205                 } else {
 206                         return $services->getLinkRendererFactory()->createForUser( $wgUser );
 207                 }
 208         },
 209
 210         'LinkRendererFactory' => function ( MediaWikiServices $services ) : LinkRendererFactory {
 211                 return new LinkRendererFactory(
 212                         $services->getTitleFormatter(),
 213                         $services->getLinkCache()
 214                 );
 215         },
 216
 217         'LocalServerObjectCache' => function ( MediaWikiServices $services ) : BagOStuff {
 218                 $cacheId = \ObjectCache::detectLocalServerCache();
 219                 return \ObjectCache::newFromId( $cacheId );
 220         },
 221
 222         'MagicWordFactory' => function ( MediaWikiServices $services ) : MagicWordFactory {
 223                 return new MagicWordFactory( $services->getContentLanguage() );
 224         },
 225
 226         'MainConfig' => function ( MediaWikiServices $services ) : Config {
 227                 // Use the 'main' config from the ConfigFactory service.
 228                 return $services->getConfigFactory()->makeConfig( 'main' );
 229         },
 230
 231         'MainObjectStash' => function ( MediaWikiServices $services ) : BagOStuff {
 232                 $mainConfig = $services->getMainConfig();
 233
 234                 $id = $mainConfig->get( 'MainStash' );
 235                 if ( !isset( $mainConfig->get( 'ObjectCaches' )[$id] ) ) {
 236                         throw new UnexpectedValueException(
 237                                 "Cache type \"$id\" is not present in \$wgObjectCaches." );
 238                 }
 239
 240                 return \ObjectCache::newFromParams( $mainConfig->get( 'ObjectCaches' )[$id] );
 241         },
 242
 243         'MainWANObjectCache' => function ( MediaWikiServices $services ) : WANObjectCache {
 244                 $mainConfig = $services->getMainConfig();
 245
 246                 $id = $mainConfig->get( 'MainWANCache' );
 247                 if ( !isset( $mainConfig->get( 'WANObjectCaches' )[$id] ) ) {
 248                         throw new UnexpectedValueException(
 249                                 "WAN cache type \"$id\" is not present in \$wgWANObjectCaches." );
 250                 }
 251
 252                 $params = $mainConfig->get( 'WANObjectCaches' )[$id];
 253                 $objectCacheId = $params['cacheId'];
 254                 if ( !isset( $mainConfig->get( 'ObjectCaches' )[$objectCacheId] ) ) {
 255                         throw new UnexpectedValueException(
 256                                 "Cache type \"$objectCacheId\" is not present in \$wgObjectCaches." );
 257                 }
 258                 $params['store'] = $mainConfig->get( 'ObjectCaches' )[$objectCacheId];
 259
 260                 return \ObjectCache::newWANCacheFromParams( $params );
 261         },
 262
 263         'MediaHandlerFactory' => function ( MediaWikiServices $services ) : MediaHandlerFactory {
 264                 return new MediaHandlerFactory(
 265                         $services->getMainConfig()->get( 'MediaHandlers' )
 266                 );
 267         },
 268
 269         'MimeAnalyzer' => function ( MediaWikiServices $services ) : MimeAnalyzer {
 270                 $logger = LoggerFactory::getInstance( 'Mime' );
 271                 $mainConfig = $services->getMainConfig();
 272                 $params = [
 273                         'typeFile' => $mainConfig->get( 'MimeTypeFile' ),
 274                         'infoFile' => $mainConfig->get( 'MimeInfoFile' ),
 275                         'xmlTypes' => $mainConfig->get( 'XMLMimeTypes' ),
 276                         'guessCallback' =>
 277                                 function ( $mimeAnalyzer, &$head, &$tail, $file, &$mime ) use ( $logger ) {
 278                                         // Also test DjVu
 279                                         $deja = new DjVuImage( $file );
 280                                         if ( $deja->isValid() ) {
 281                                                 $logger->info( __METHOD__ . ": detected $file as image/vnd.djvu\n" );
 282                                                 $mime = 'image/vnd.djvu';
 283
 284                                                 return;
 285                                         }
 286                                         // Some strings by reference for performance - assuming well-behaved hooks
 287                                         Hooks::run(
 288                                                 'MimeMagicGuessFromContent',
 289                                                 [ $mimeAnalyzer, &$head, &$tail, $file, &$mime ]
 290                                         );
 291                                 },
 292                         'extCallback' => function ( $mimeAnalyzer, $ext, &$mime ) {
 293                                 // Media handling extensions can improve the MIME detected
 294                                 Hooks::run( 'MimeMagicImproveFromExtension', [ $mimeAnalyzer, $ext, &$mime ] );
 295                         },
 296                         'initCallback' => function ( $mimeAnalyzer ) {
 297                                 // Allow media handling extensions adding MIME-types and MIME-info
 298                                 Hooks::run( 'MimeMagicInit', [ $mimeAnalyzer ] );
 299                         },
 300                         'logger' => $logger
 301                 ];
 302
 303                 if ( $params['infoFile'] === 'includes/mime.info' ) {
 304                         $params['infoFile'] = __DIR__ . "/libs/mime/mime.info";
 305                 }
 306
 307                 if ( $params['typeFile'] === 'includes/mime.types' ) {
 308                         $params['typeFile'] = __DIR__ . "/libs/mime/mime.types";
 309                 }
 310
 311                 $detectorCmd = $mainConfig->get( 'MimeDetectorCommand' );
 312                 if ( $detectorCmd ) {
 313                         $factory = $services->getShellCommandFactory();
 314                         $params['detectCallback'] = function ( $file ) use ( $detectorCmd, $factory ) {
 315                                 $result = $factory->create()
 316                                         // $wgMimeDetectorCommand can contain commands with parameters
 317                                         ->unsafeParams( $detectorCmd )
 318                                         ->params( $file )
 319                                         ->execute();
 320                                 return $result->getStdout();
 321                         };
 322                 }
 323
 324                 return new MimeAnalyzer( $params );
 325         },
 326
 327         'NameTableStoreFactory' => function ( MediaWikiServices $services ) : NameTableStoreFactory {
 328                 return new NameTableStoreFactory(
 329                         $services->getDBLoadBalancerFactory(),
 330                         $services->getMainWANObjectCache(),
 331                         LoggerFactory::getInstance( 'NameTableSqlStore' )
 332                 );
 333         },
 334
 335         'OldRevisionImporter' => function ( MediaWikiServices $services ) : OldRevisionImporter {
 336                 return new ImportableOldRevisionImporter(
 337                         true,
 338                         LoggerFactory::getInstance( 'OldRevisionImporter' ),
 339                         $services->getDBLoadBalancer()
 340                 );
 341         },
 342
 343         'Parser' => function ( MediaWikiServices $services ) : Parser {
 344                 return $services->getParserFactory()->create();
 345         },
 346
 347         'ParserCache' => function ( MediaWikiServices $services ) : ParserCache {
 348                 $config = $services->getMainConfig();
 349                 $cache = ObjectCache::getInstance( $config->get( 'ParserCacheType' ) );
 350                 wfDebugLog( 'caches', 'parser: ' . get_class( $cache ) );
 351
 352                 return new ParserCache(
 353                         $cache,
 354                         $config->get( 'CacheEpoch' )
 355                 );
 356         },
 357
 358         'ParserFactory' => function ( MediaWikiServices $services ) : ParserFactory {
 359                 return new ParserFactory(
 360                         $services->getMainConfig()->get( 'ParserConf' ),
 361                         $services->getMagicWordFactory(),
 362                         $services->getContentLanguage(),
 363                         wfUrlProtocols(),
 364                         $services->getSpecialPageFactory()
 365                 );
 366         },
 367
 368         'PasswordFactory' => function ( MediaWikiServices $services ) : PasswordFactory {
 369                 $config = $services->getMainConfig();
 370                 return new PasswordFactory(
 371                         $config->get( 'PasswordConfig' ),
 372                         $config->get( 'PasswordDefault' )
 373                 );
 374         },
 375
 376         'PerDbNameStatsdDataFactory' =>
 377         function ( MediaWikiServices $services ) : StatsdDataFactoryInterface {
 378                 $config = $services->getMainConfig();
 379                 $wiki = $config->get( 'DBname' );
 380                 return new PrefixingStatsdDataFactoryProxy(
 381                         $services->getStatsdDataFactory(),
 382                         $wiki
 383                 );
 384         },
 385
 386         'PreferencesFactory' => function ( MediaWikiServices $services ) : PreferencesFactory {
 387                 $factory = new DefaultPreferencesFactory(
 388                         $services->getMainConfig(),
 389                         $services->getContentLanguage(),
 390                         AuthManager::singleton(),
 391                         $services->getLinkRendererFactory()->create()
 392                 );
 393                 $factory->setLogger( LoggerFactory::getInstance( 'preferences' ) );
 394
 395                 return $factory;
 396         },
 397
 398         'ProxyLookup' => function ( MediaWikiServices $services ) : ProxyLookup {
 399                 $mainConfig = $services->getMainConfig();
 400                 return new ProxyLookup(
 401                         $mainConfig->get( 'SquidServers' ),
 402                         $mainConfig->get( 'SquidServersNoPurge' )
 403                 );
 404         },
 405
 406         'ReadOnlyMode' => function ( MediaWikiServices $services ) : ReadOnlyMode {
 407                 return new ReadOnlyMode(
 408                         $services->getConfiguredReadOnlyMode(),
 409                         $services->getDBLoadBalancer()
 410                 );
 411         },
 412
 413         'RevisionFactory' => function ( MediaWikiServices $services ) : RevisionFactory {
 414                 return $services->getRevisionStore();
 415         },
 416
 417         'RevisionLookup' => function ( MediaWikiServices $services ) : RevisionLookup {
 418                 return $services->getRevisionStore();
 419         },
 420
 421         'RevisionRenderer' => function ( MediaWikiServices $services ) : RevisionRenderer {
 422                 return new RevisionRenderer( $services->getDBLoadBalancer() );
 423         },
 424
 425         'RevisionStore' => function ( MediaWikiServices $services ) : RevisionStore {
 426                 return $services->getRevisionStoreFactory()->getRevisionStore();
 427         },
 428
 429         'RevisionStoreFactory' => function ( MediaWikiServices $services ) : RevisionStoreFactory {
 430                 $config = $services->getMainConfig();
 431                 $store = new RevisionStoreFactory(
 432                         $services->getDBLoadBalancerFactory(),
 433                         $services->getBlobStoreFactory(),
 434                         $services->getNameTableStoreFactory(),
 435                         $services->getMainWANObjectCache(),
 436                         $services->getCommentStore(),
 437                         $services->getActorMigration(),
 438                         $config->get( 'MultiContentRevisionSchemaMigrationStage' ),
 439                         LoggerFactory::getProvider(),
 440                         $config->get( 'ContentHandlerUseDB' )
 441                 );
 442
 443                 return $store;
 444         },
 445
 446         'SearchEngineConfig' => function ( MediaWikiServices $services ) : SearchEngineConfig {
 447                 return new SearchEngineConfig( $services->getMainConfig(),
 448                         $services->getContentLanguage() );
 449         },
 450
 451         'SearchEngineFactory' => function ( MediaWikiServices $services ) : SearchEngineFactory {
 452                 return new SearchEngineFactory( $services->getSearchEngineConfig() );
 453         },
 454
 455         'ShellCommandFactory' => function ( MediaWikiServices $services ) : CommandFactory {
 456                 $config = $services->getMainConfig();
 457
 458                 $limits = [
 459                         'time' => $config->get( 'MaxShellTime' ),
 460                         'walltime' => $config->get( 'MaxShellWallClockTime' ),
 461                         'memory' => $config->get( 'MaxShellMemory' ),
 462                         'filesize' => $config->get( 'MaxShellFileSize' ),
 463                 ];
 464                 $cgroup = $config->get( 'ShellCgroup' );
 465                 $restrictionMethod = $config->get( 'ShellRestrictionMethod' );
 466
 467                 $factory = new CommandFactory( $limits, $cgroup, $restrictionMethod );
 468                 $factory->setLogger( LoggerFactory::getInstance( 'exec' ) );
 469                 $factory->logStderr();
 470
 471                 return $factory;
 472         },
 473
 474         'SiteLookup' => function ( MediaWikiServices $services ) : SiteLookup {
 475                 $cacheFile = $services->getMainConfig()->get( 'SitesCacheFile' );
 476
 477                 if ( $cacheFile !== false ) {
 478                         return new FileBasedSiteLookup( $cacheFile );
 479                 } else {
 480                         // Use the default SiteStore as the SiteLookup implementation for now
 481                         return $services->getSiteStore();
 482                 }
 483         },
 484
 485         'SiteStore' => function ( MediaWikiServices $services ) : SiteStore {
 486                 $rawSiteStore = new DBSiteStore( $services->getDBLoadBalancer() );
 487
 488                 // TODO: replace wfGetCache with a CacheFactory service.
 489                 // TODO: replace wfIsHHVM with a capabilities service.
 490                 $cache = wfGetCache( wfIsHHVM() ? CACHE_ACCEL : CACHE_ANYTHING );
 491
 492                 return new CachingSiteStore( $rawSiteStore, $cache );
 493         },
 494
 495         'SkinFactory' => function ( MediaWikiServices $services ) : SkinFactory {
 496                 $factory = new SkinFactory();
 497
 498                 $names = $services->getMainConfig()->get( 'ValidSkinNames' );
 499
 500                 foreach ( $names as $name => $skin ) {
 501                         $factory->register( $name, $skin, function () use ( $name, $skin ) {
 502                                 $class = "Skin$skin";
 503                                 return new $class( $name );
 504                         } );
 505                 }
 506                 // Register a hidden "fallback" skin
 507                 $factory->register( 'fallback', 'Fallback', function () {
 508                         return new SkinFallback;
 509                 } );
 510                 // Register a hidden skin for api output
 511                 $factory->register( 'apioutput', 'ApiOutput', function () {
 512                         return new SkinApi;
 513                 } );
 514
 515                 return $factory;
 516         },
 517
 518         'SpecialPageFactory' => function ( MediaWikiServices $services ) : SpecialPageFactory {
 519                 return new SpecialPageFactory(
 520                         $services->getMainConfig(),
 521                         $services->getContentLanguage()
 522                 );
 523         },
 524
 525         'StatsdDataFactory' => function ( MediaWikiServices $services ) : IBufferingStatsdDataFactory {
 526                 return new BufferingStatsdDataFactory(
 527                         rtrim( $services->getMainConfig()->get( 'StatsdMetricPrefix' ), '.' )
 528                 );
 529         },
 530
 531         'TitleFormatter' => function ( MediaWikiServices $services ) : TitleFormatter {
 532                 return $services->getService( '_MediaWikiTitleCodec' );
 533         },
 534
 535         'TitleParser' => function ( MediaWikiServices $services ) : TitleParser {
 536                 return $services->getService( '_MediaWikiTitleCodec' );
 537         },
 538
 539         'UploadRevisionImporter' => function ( MediaWikiServices $services ) : UploadRevisionImporter {
 540                 return new ImportableUploadRevisionImporter(
 541                         $services->getMainConfig()->get( 'EnableUploads' ),
 542                         LoggerFactory::getInstance( 'UploadRevisionImporter' )
 543                 );
 544         },
 545
 546         'VirtualRESTServiceClient' =>
 547         function ( MediaWikiServices $services ) : VirtualRESTServiceClient {
 548                 $config = $services->getMainConfig()->get( 'VirtualRestConfig' );
 549
 550                 $vrsClient = new VirtualRESTServiceClient( new MultiHttpClient( [] ) );
 551                 foreach ( $config['paths'] as $prefix => $serviceConfig ) {
 552                         $class = $serviceConfig['class'];
 553                         // Merge in the global defaults
 554                         $constructArg = $serviceConfig['options'] ?? [];
 555                         $constructArg += $config['global'];
 556                         // Make the VRS service available at the mount point
 557                         $vrsClient->mount( $prefix, [ 'class' => $class, 'config' => $constructArg ] );
 558                 }
 559
 560                 return $vrsClient;
 561         },
 562
 563         'WatchedItemQueryService' =>
 564         function ( MediaWikiServices $services ) : WatchedItemQueryService {
 565                 return new WatchedItemQueryService(
 566                         $services->getDBLoadBalancer(),
 567                         $services->getCommentStore(),
 568                         $services->getActorMigration()
 569                 );
 570         },
 571
 572         'WatchedItemStore' => function ( MediaWikiServices $services ) : WatchedItemStore {
 573                 $store = new WatchedItemStore(
 574                         $services->getDBLoadBalancer(),
 575                         new HashBagOStuff( [ 'maxKeys' => 100 ] ),
 576                         $services->getReadOnlyMode(),
 577                         $services->getMainConfig()->get( 'UpdateRowsPerQuery' )
 578                 );
 579                 $store->setStatsdDataFactory( $services->getStatsdDataFactory() );
 580
 581                 if ( $services->getMainConfig()->get( 'ReadOnlyWatchedItemStore' ) ) {
 582                         $store = new NoWriteWatchedItemStore( $store );
 583                 }
 584
 585                 return $store;
 586         },
 587
 588         'WikiRevisionOldRevisionImporterNoUpdates' =>
 589         function ( MediaWikiServices $services ) : ImportableOldRevisionImporter {
 590                 return new ImportableOldRevisionImporter(
 591                         false,
 592                         LoggerFactory::getInstance( 'OldRevisionImporter' ),
 593                         $services->getDBLoadBalancer()
 594                 );
 595         },
 596
 597         '_MediaWikiTitleCodec' => function ( MediaWikiServices $services ) : MediaWikiTitleCodec {
 598                 return new MediaWikiTitleCodec(
 599                         $services->getContentLanguage(),
 600                         $services->getGenderCache(),
 601                         $services->getMainConfig()->get( 'LocalInterwikis' ),
 602                         $services->getInterwikiLookup()
 603                 );
 604         },
 605
 606         '_SqlBlobStore' => function ( MediaWikiServices $services ) : SqlBlobStore {
 607                 return $services->getBlobStoreFactory()->newSqlBlobStore();
 608         },
 609
 610         ///////////////////////////////////////////////////////////////////////////
 611         // NOTE: When adding a service here, don't forget to add a getter function
 612         // in the MediaWikiServices class. The convenience getter should just call
 613         // $this->getService( 'FooBarService' ).
 614         ///////////////////////////////////////////////////////////////////////////
 615
 616 ];