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 MediaWiki\Auth\AuthManager;
  41 use MediaWiki\Interwiki\ClassicInterwikiLookup;
  42 use MediaWiki\Linker\LinkRendererFactory;
  43 use MediaWiki\Logger\LoggerFactory;
  44 use MediaWiki\MediaWikiServices;
  45 use MediaWiki\Preferences\DefaultPreferencesFactory;
  46 use MediaWiki\Shell\CommandFactory;
  47 use MediaWiki\Storage\BlobStoreFactory;
  48 use MediaWiki\Storage\NameTableStore;
  49 use MediaWiki\Storage\RevisionStore;
  50 use MediaWiki\Storage\SqlBlobStore;
  51 use Wikimedia\ObjectFactory;
  52
  53 return [
  54         'DBLoadBalancerFactory' => function ( MediaWikiServices $services ) {
  55                 $mainConfig = $services->getMainConfig();
  56
  57                 $lbConf = MWLBFactory::applyDefaultConfig(
  58                         $mainConfig->get( 'LBFactoryConf' ),
  59                         $mainConfig,
  60                         $services->getConfiguredReadOnlyMode()
  61                 );
  62                 $class = MWLBFactory::getLBFactoryClass( $lbConf );
  63
  64                 $instance = new $class( $lbConf );
  65                 MWLBFactory::setSchemaAliases( $instance, $mainConfig );
  66
  67                 return $instance;
  68         },
  69
  70         'DBLoadBalancer' => function ( MediaWikiServices $services ) {
  71                 // just return the default LB from the DBLoadBalancerFactory service
  72                 return $services->getDBLoadBalancerFactory()->getMainLB();
  73         },
  74
  75         'SiteStore' => function ( MediaWikiServices $services ) {
  76                 $rawSiteStore = new DBSiteStore( $services->getDBLoadBalancer() );
  77
  78                 // TODO: replace wfGetCache with a CacheFactory service.
  79                 // TODO: replace wfIsHHVM with a capabilities service.
  80                 $cache = wfGetCache( wfIsHHVM() ? CACHE_ACCEL : CACHE_ANYTHING );
  81
  82                 return new CachingSiteStore( $rawSiteStore, $cache );
  83         },
  84
  85         'SiteLookup' => function ( MediaWikiServices $services ) {
  86                 $cacheFile = $services->getMainConfig()->get( 'SitesCacheFile' );
  87
  88                 if ( $cacheFile !== false ) {
  89                         return new FileBasedSiteLookup( $cacheFile );
  90                 } else {
  91                         // Use the default SiteStore as the SiteLookup implementation for now
  92                         return $services->getSiteStore();
  93                 }
  94         },
  95
  96         'ConfigFactory' => function ( MediaWikiServices $services ) {
  97                 // Use the bootstrap config to initialize the ConfigFactory.
  98                 $registry = $services->getBootstrapConfig()->get( 'ConfigRegistry' );
  99                 $factory = new ConfigFactory();
 100
 101                 foreach ( $registry as $name => $callback ) {
 102                         $factory->register( $name, $callback );
 103                 }
 104                 return $factory;
 105         },
 106
 107         'MainConfig' => function ( MediaWikiServices $services ) {
 108                 // Use the 'main' config from the ConfigFactory service.
 109                 return $services->getConfigFactory()->makeConfig( 'main' );
 110         },
 111
 112         'InterwikiLookup' => function ( MediaWikiServices $services ) {
 113                 global $wgContLang; // TODO: manage $wgContLang as a service
 114                 $config = $services->getMainConfig();
 115                 return new ClassicInterwikiLookup(
 116                         $wgContLang,
 117                         $services->getMainWANObjectCache(),
 118                         $config->get( 'InterwikiExpiry' ),
 119                         $config->get( 'InterwikiCache' ),
 120                         $config->get( 'InterwikiScopes' ),
 121                         $config->get( 'InterwikiFallbackSite' )
 122                 );
 123         },
 124
 125         'StatsdDataFactory' => function ( MediaWikiServices $services ) {
 126                 return new BufferingStatsdDataFactory(
 127                         rtrim( $services->getMainConfig()->get( 'StatsdMetricPrefix' ), '.' )
 128                 );
 129         },
 130
 131         'PerDbNameStatsdDataFactory' => function ( MediaWikiServices $services ) {
 132                 $config = $services->getMainConfig();
 133                 $wiki = $config->get( 'DBname' );
 134                 return new BufferingStatsdDataFactory(
 135                         rtrim( $services->getMainConfig()->get( 'StatsdMetricPrefix' ), '.' ) . $wiki
 136                 );
 137         },
 138
 139         'EventRelayerGroup' => function ( MediaWikiServices $services ) {
 140                 return new EventRelayerGroup( $services->getMainConfig()->get( 'EventRelayerConfig' ) );
 141         },
 142
 143         'SearchEngineFactory' => function ( MediaWikiServices $services ) {
 144                 return new SearchEngineFactory( $services->getSearchEngineConfig() );
 145         },
 146
 147         'SearchEngineConfig' => function ( MediaWikiServices $services ) {
 148                 global $wgContLang;
 149                 return new SearchEngineConfig( $services->getMainConfig(), $wgContLang );
 150         },
 151
 152         'SkinFactory' => function ( MediaWikiServices $services ) {
 153                 $factory = new SkinFactory();
 154
 155                 $names = $services->getMainConfig()->get( 'ValidSkinNames' );
 156
 157                 foreach ( $names as $name => $skin ) {
 158                         $factory->register( $name, $skin, function () use ( $name, $skin ) {
 159                                 $class = "Skin$skin";
 160                                 return new $class( $name );
 161                         } );
 162                 }
 163                 // Register a hidden "fallback" skin
 164                 $factory->register( 'fallback', 'Fallback', function () {
 165                         return new SkinFallback;
 166                 } );
 167                 // Register a hidden skin for api output
 168                 $factory->register( 'apioutput', 'ApiOutput', function () {
 169                         return new SkinApi;
 170                 } );
 171
 172                 return $factory;
 173         },
 174
 175         'WatchedItemStore' => function ( MediaWikiServices $services ) {
 176                 $store = new WatchedItemStore(
 177                         $services->getDBLoadBalancer(),
 178                         new HashBagOStuff( [ 'maxKeys' => 100 ] ),
 179                         $services->getReadOnlyMode(),
 180                         $services->getMainConfig()->get( 'UpdateRowsPerQuery' )
 181                 );
 182                 $store->setStatsdDataFactory( $services->getStatsdDataFactory() );
 183
 184                 if ( $services->getMainConfig()->get( 'ReadOnlyWatchedItemStore' ) ) {
 185                         $store = new NoWriteWatchedItemStore( $store );
 186                 }
 187
 188                 return $store;
 189         },
 190
 191         'WatchedItemQueryService' => function ( MediaWikiServices $services ) {
 192                 return new WatchedItemQueryService(
 193                         $services->getDBLoadBalancer(),
 194                         $services->getCommentStore(),
 195                         $services->getActorMigration()
 196                 );
 197         },
 198
 199         'CryptRand' => function () {
 200                 return new CryptRand();
 201         },
 202
 203         'CryptHKDF' => function ( MediaWikiServices $services ) {
 204                 $config = $services->getMainConfig();
 205
 206                 $secret = $config->get( 'HKDFSecret' ) ?: $config->get( 'SecretKey' );
 207                 if ( !$secret ) {
 208                         throw new RuntimeException( "Cannot use MWCryptHKDF without a secret." );
 209                 }
 210
 211                 // In HKDF, the context can be known to the attacker, but this will
 212                 // keep simultaneous runs from producing the same output.
 213                 $context = [ microtime(), getmypid(), gethostname() ];
 214
 215                 // Setup salt cache. Use APC, or fallback to the main cache if it isn't setup
 216                 $cache = $services->getLocalServerObjectCache();
 217                 if ( $cache instanceof EmptyBagOStuff ) {
 218                         $cache = ObjectCache::getLocalClusterInstance();
 219                 }
 220
 221                 return new CryptHKDF( $secret, $config->get( 'HKDFAlgorithm' ), $cache, $context );
 222         },
 223
 224         'MediaHandlerFactory' => function ( MediaWikiServices $services ) {
 225                 return new MediaHandlerFactory(
 226                         $services->getMainConfig()->get( 'MediaHandlers' )
 227                 );
 228         },
 229
 230         'MimeAnalyzer' => function ( MediaWikiServices $services ) {
 231                 $logger = LoggerFactory::getInstance( 'Mime' );
 232                 $mainConfig = $services->getMainConfig();
 233                 $params = [
 234                         'typeFile' => $mainConfig->get( 'MimeTypeFile' ),
 235                         'infoFile' => $mainConfig->get( 'MimeInfoFile' ),
 236                         'xmlTypes' => $mainConfig->get( 'XMLMimeTypes' ),
 237                         'guessCallback' =>
 238                                 function ( $mimeAnalyzer, &$head, &$tail, $file, &$mime ) use ( $logger ) {
 239                                         // Also test DjVu
 240                                         $deja = new DjVuImage( $file );
 241                                         if ( $deja->isValid() ) {
 242                                                 $logger->info( __METHOD__ . ": detected $file as image/vnd.djvu\n" );
 243                                                 $mime = 'image/vnd.djvu';
 244
 245                                                 return;
 246                                         }
 247                                         // Some strings by reference for performance - assuming well-behaved hooks
 248                                         Hooks::run(
 249                                                 'MimeMagicGuessFromContent',
 250                                                 [ $mimeAnalyzer, &$head, &$tail, $file, &$mime ]
 251                                         );
 252                                 },
 253                         'extCallback' => function ( $mimeAnalyzer, $ext, &$mime ) {
 254                                 // Media handling extensions can improve the MIME detected
 255                                 Hooks::run( 'MimeMagicImproveFromExtension', [ $mimeAnalyzer, $ext, &$mime ] );
 256                         },
 257                         'initCallback' => function ( $mimeAnalyzer ) {
 258                                 // Allow media handling extensions adding MIME-types and MIME-info
 259                                 Hooks::run( 'MimeMagicInit', [ $mimeAnalyzer ] );
 260                         },
 261                         'logger' => $logger
 262                 ];
 263
 264                 if ( $params['infoFile'] === 'includes/mime.info' ) {
 265                         $params['infoFile'] = __DIR__ . "/libs/mime/mime.info";
 266                 }
 267
 268                 if ( $params['typeFile'] === 'includes/mime.types' ) {
 269                         $params['typeFile'] = __DIR__ . "/libs/mime/mime.types";
 270                 }
 271
 272                 $detectorCmd = $mainConfig->get( 'MimeDetectorCommand' );
 273                 if ( $detectorCmd ) {
 274                         $factory = $services->getShellCommandFactory();
 275                         $params['detectCallback'] = function ( $file ) use ( $detectorCmd, $factory ) {
 276                                 $result = $factory->create()
 277                                         // $wgMimeDetectorCommand can contain commands with parameters
 278                                         ->unsafeParams( $detectorCmd )
 279                                         ->params( $file )
 280                                         ->execute();
 281                                 return $result->getStdout();
 282                         };
 283                 }
 284
 285                 // XXX: MimeMagic::singleton currently requires this service to return an instance of MimeMagic
 286                 return new MimeMagic( $params );
 287         },
 288
 289         'ProxyLookup' => function ( MediaWikiServices $services ) {
 290                 $mainConfig = $services->getMainConfig();
 291                 return new ProxyLookup(
 292                         $mainConfig->get( 'SquidServers' ),
 293                         $mainConfig->get( 'SquidServersNoPurge' )
 294                 );
 295         },
 296
 297         'Parser' => function ( MediaWikiServices $services ) {
 298                 $conf = $services->getMainConfig()->get( 'ParserConf' );
 299                 return ObjectFactory::constructClassInstance( $conf['class'], [ $conf ] );
 300         },
 301
 302         'ParserCache' => function ( MediaWikiServices $services ) {
 303                 $config = $services->getMainConfig();
 304                 $cache = ObjectCache::getInstance( $config->get( 'ParserCacheType' ) );
 305                 wfDebugLog( 'caches', 'parser: ' . get_class( $cache ) );
 306
 307                 return new ParserCache(
 308                         $cache,
 309                         $config->get( 'CacheEpoch' )
 310                 );
 311         },
 312
 313         'LinkCache' => function ( MediaWikiServices $services ) {
 314                 return new LinkCache(
 315                         $services->getTitleFormatter(),
 316                         $services->getMainWANObjectCache()
 317                 );
 318         },
 319
 320         'LinkRendererFactory' => function ( MediaWikiServices $services ) {
 321                 return new LinkRendererFactory(
 322                         $services->getTitleFormatter(),
 323                         $services->getLinkCache()
 324                 );
 325         },
 326
 327         'LinkRenderer' => function ( MediaWikiServices $services ) {
 328                 global $wgUser;
 329
 330                 if ( defined( 'MW_NO_SESSION' ) ) {
 331                         return $services->getLinkRendererFactory()->create();
 332                 } else {
 333                         return $services->getLinkRendererFactory()->createForUser( $wgUser );
 334                 }
 335         },
 336
 337         'GenderCache' => function ( MediaWikiServices $services ) {
 338                 return new GenderCache();
 339         },
 340
 341         '_MediaWikiTitleCodec' => function ( MediaWikiServices $services ) {
 342                 global $wgContLang;
 343
 344                 return new MediaWikiTitleCodec(
 345                         $wgContLang,
 346                         $services->getGenderCache(),
 347                         $services->getMainConfig()->get( 'LocalInterwikis' )
 348                 );
 349         },
 350
 351         'TitleFormatter' => function ( MediaWikiServices $services ) {
 352                 return $services->getService( '_MediaWikiTitleCodec' );
 353         },
 354
 355         'TitleParser' => function ( MediaWikiServices $services ) {
 356                 return $services->getService( '_MediaWikiTitleCodec' );
 357         },
 358
 359         'MainObjectStash' => function ( MediaWikiServices $services ) {
 360                 $mainConfig = $services->getMainConfig();
 361
 362                 $id = $mainConfig->get( 'MainStash' );
 363                 if ( !isset( $mainConfig->get( 'ObjectCaches' )[$id] ) ) {
 364                         throw new UnexpectedValueException(
 365                                 "Cache type \"$id\" is not present in \$wgObjectCaches." );
 366                 }
 367
 368                 return \ObjectCache::newFromParams( $mainConfig->get( 'ObjectCaches' )[$id] );
 369         },
 370
 371         'MainWANObjectCache' => function ( MediaWikiServices $services ) {
 372                 $mainConfig = $services->getMainConfig();
 373
 374                 $id = $mainConfig->get( 'MainWANCache' );
 375                 if ( !isset( $mainConfig->get( 'WANObjectCaches' )[$id] ) ) {
 376                         throw new UnexpectedValueException(
 377                                 "WAN cache type \"$id\" is not present in \$wgWANObjectCaches." );
 378                 }
 379
 380                 $params = $mainConfig->get( 'WANObjectCaches' )[$id];
 381                 $objectCacheId = $params['cacheId'];
 382                 if ( !isset( $mainConfig->get( 'ObjectCaches' )[$objectCacheId] ) ) {
 383                         throw new UnexpectedValueException(
 384                                 "Cache type \"$objectCacheId\" is not present in \$wgObjectCaches." );
 385                 }
 386                 $params['store'] = $mainConfig->get( 'ObjectCaches' )[$objectCacheId];
 387
 388                 return \ObjectCache::newWANCacheFromParams( $params );
 389         },
 390
 391         'LocalServerObjectCache' => function ( MediaWikiServices $services ) {
 392                 $cacheId = \ObjectCache::detectLocalServerCache();
 393                 return \ObjectCache::newFromId( $cacheId );
 394         },
 395
 396         'VirtualRESTServiceClient' => function ( MediaWikiServices $services ) {
 397                 $config = $services->getMainConfig()->get( 'VirtualRestConfig' );
 398
 399                 $vrsClient = new VirtualRESTServiceClient( new MultiHttpClient( [] ) );
 400                 foreach ( $config['paths'] as $prefix => $serviceConfig ) {
 401                         $class = $serviceConfig['class'];
 402                         // Merge in the global defaults
 403                         $constructArg = $serviceConfig['options'] ?? [];
 404                         $constructArg += $config['global'];
 405                         // Make the VRS service available at the mount point
 406                         $vrsClient->mount( $prefix, [ 'class' => $class, 'config' => $constructArg ] );
 407                 }
 408
 409                 return $vrsClient;
 410         },
 411
 412         'ConfiguredReadOnlyMode' => function ( MediaWikiServices $services ) {
 413                 return new ConfiguredReadOnlyMode( $services->getMainConfig() );
 414         },
 415
 416         'ReadOnlyMode' => function ( MediaWikiServices $services ) {
 417                 return new ReadOnlyMode(
 418                         $services->getConfiguredReadOnlyMode(),
 419                         $services->getDBLoadBalancer()
 420                 );
 421         },
 422
 423         'UploadRevisionImporter' => function ( MediaWikiServices $services ) {
 424                 return new ImportableUploadRevisionImporter(
 425                         $services->getMainConfig()->get( 'EnableUploads' ),
 426                         LoggerFactory::getInstance( 'UploadRevisionImporter' )
 427                 );
 428         },
 429
 430         'OldRevisionImporter' => function ( MediaWikiServices $services ) {
 431                 return new ImportableOldRevisionImporter(
 432                         true,
 433                         LoggerFactory::getInstance( 'OldRevisionImporter' ),
 434                         $services->getDBLoadBalancer()
 435                 );
 436         },
 437
 438         'WikiRevisionOldRevisionImporterNoUpdates' => function ( MediaWikiServices $services ) {
 439                 return new ImportableOldRevisionImporter(
 440                         false,
 441                         LoggerFactory::getInstance( 'OldRevisionImporter' ),
 442                         $services->getDBLoadBalancer()
 443                 );
 444         },
 445
 446         'ShellCommandFactory' => function ( MediaWikiServices $services ) {
 447                 $config = $services->getMainConfig();
 448
 449                 $limits = [
 450                         'time' => $config->get( 'MaxShellTime' ),
 451                         'walltime' => $config->get( 'MaxShellWallClockTime' ),
 452                         'memory' => $config->get( 'MaxShellMemory' ),
 453                         'filesize' => $config->get( 'MaxShellFileSize' ),
 454                 ];
 455                 $cgroup = $config->get( 'ShellCgroup' );
 456                 $restrictionMethod = $config->get( 'ShellRestrictionMethod' );
 457
 458                 $factory = new CommandFactory( $limits, $cgroup, $restrictionMethod );
 459                 $factory->setLogger( LoggerFactory::getInstance( 'exec' ) );
 460                 $factory->logStderr();
 461
 462                 return $factory;
 463         },
 464
 465         'ExternalStoreFactory' => function ( MediaWikiServices $services ) {
 466                 $config = $services->getMainConfig();
 467
 468                 return new ExternalStoreFactory(
 469                         $config->get( 'ExternalStores' )
 470                 );
 471         },
 472
 473         'RevisionStore' => function ( MediaWikiServices $services ) {
 474                 /** @var SqlBlobStore $blobStore */
 475                 $blobStore = $services->getService( '_SqlBlobStore' );
 476
 477                 $store = new RevisionStore(
 478                         $services->getDBLoadBalancer(),
 479                         $blobStore,
 480                         $services->getMainWANObjectCache(),
 481                         $services->getCommentStore(),
 482                         $services->getContentModelStore(),
 483                         $services->getSlotRoleStore(),
 484                         $services->getMainConfig()->get( 'MultiContentRevisionSchemaMigrationStage' ),
 485                         $services->getActorMigration()
 486                 );
 487
 488                 $store->setLogger( LoggerFactory::getInstance( 'RevisionStore' ) );
 489
 490                 $config = $services->getMainConfig();
 491                 $store->setContentHandlerUseDB( $config->get( 'ContentHandlerUseDB' ) );
 492
 493                 return $store;
 494         },
 495
 496         'RevisionLookup' => function ( MediaWikiServices $services ) {
 497                 return $services->getRevisionStore();
 498         },
 499
 500         'RevisionFactory' => function ( MediaWikiServices $services ) {
 501                 return $services->getRevisionStore();
 502         },
 503
 504         'BlobStoreFactory' => function ( MediaWikiServices $services ) {
 505                 global $wgContLang;
 506                 return new BlobStoreFactory(
 507                         $services->getDBLoadBalancer(),
 508                         $services->getMainWANObjectCache(),
 509                         $services->getMainConfig(),
 510                         $wgContLang
 511                 );
 512         },
 513
 514         'BlobStore' => function ( MediaWikiServices $services ) {
 515                 return $services->getService( '_SqlBlobStore' );
 516         },
 517
 518         '_SqlBlobStore' => function ( MediaWikiServices $services ) {
 519                 return $services->getBlobStoreFactory()->newSqlBlobStore();
 520         },
 521
 522         'ContentModelStore' => function ( MediaWikiServices $services ) {
 523                 return new NameTableStore(
 524                         $services->getDBLoadBalancer(),
 525                         $services->getMainWANObjectCache(),
 526                         LoggerFactory::getInstance( 'NameTableSqlStore' ),
 527                         'content_models',
 528                         'model_id',
 529                         'model_name'
 530                         /**
 531                          * No strtolower normalization is added to the service as there are examples of
 532                          * extensions that do not stick to this assumption.
 533                          * - extensions/examples/DataPages define( 'CONTENT_MODEL_XML_DATA','XML_DATA' );
 534                          * - extensions/Scribunto define( 'CONTENT_MODEL_SCRIBUNTO', 'Scribunto' );
 535                          */
 536                 );
 537         },
 538
 539         'SlotRoleStore' => function ( MediaWikiServices $services ) {
 540                 return new NameTableStore(
 541                         $services->getDBLoadBalancer(),
 542                         $services->getMainWANObjectCache(),
 543                         LoggerFactory::getInstance( 'NameTableSqlStore' ),
 544                         'slot_roles',
 545                         'role_id',
 546                         'role_name',
 547                         'strtolower'
 548                 );
 549         },
 550
 551         'ChangeTagDefStore' => function ( MediaWikiServices $services ) {
 552                 return new NameTableStore(
 553                         $services->getDBLoadBalancer(),
 554                         $services->getMainWANObjectCache(),
 555                         LoggerFactory::getInstance( 'NameTableSqlStore' ),
 556                         'change_tag_def',
 557                         'ctd_id',
 558                         'ctd_name',
 559                         null,
 560                         false,
 561                         function ( $insertFields ) {
 562                                 $insertFields['ctd_user_defined'] = 0;
 563                                 $insertFields['ctd_count'] = 0;
 564                                 return $insertFields;
 565                         }
 566                 );
 567         },
 568
 569         'PreferencesFactory' => function ( MediaWikiServices $services ) {
 570                 global $wgContLang;
 571                 $authManager = AuthManager::singleton();
 572                 $linkRenderer = $services->getLinkRendererFactory()->create();
 573                 $config = $services->getMainConfig();
 574                 $factory = new DefaultPreferencesFactory( $config, $wgContLang, $authManager, $linkRenderer );
 575                 $factory->setLogger( LoggerFactory::getInstance( 'preferences' ) );
 576
 577                 return $factory;
 578         },
 579
 580         'HttpRequestFactory' => function ( MediaWikiServices $services ) {
 581                 return new \MediaWiki\Http\HttpRequestFactory();
 582         },
 583
 584         'CommentStore' => function ( MediaWikiServices $services ) {
 585                 global $wgContLang;
 586                 return new CommentStore(
 587                         $wgContLang,
 588                         $services->getMainConfig()->get( 'CommentTableSchemaMigrationStage' )
 589                 );
 590         },
 591
 592         'ActorMigration' => function ( MediaWikiServices $services ) {
 593                 return new ActorMigration(
 594                         $services->getMainConfig()->get( 'ActorTableSchemaMigrationStage' )
 595                 );
 596         },
 597
 598         ///////////////////////////////////////////////////////////////////////////
 599         // NOTE: When adding a service here, don't forget to add a getter function
 600         // in the MediaWikiServices class. The convenience getter should just call
 601         // $this->getService( 'FooBarService' ).
 602         ///////////////////////////////////////////////////////////////////////////
 603
 604 ];