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\Permissions\PermissionManager;
  50 use MediaWiki\Preferences\PreferencesFactory;
  51 use MediaWiki\Preferences\DefaultPreferencesFactory;
  52 use MediaWiki\Revision\MainSlotRoleHandler;
  53 use MediaWiki\Revision\RevisionFactory;
  54 use MediaWiki\Revision\RevisionLookup;
  55 use MediaWiki\Revision\SlotRoleRegistry;
  56 use MediaWiki\Revision\RevisionRenderer;
  57 use MediaWiki\Revision\RevisionStore;
  58 use MediaWiki\Revision\RevisionStoreFactory;
  59 use MediaWiki\Shell\CommandFactory;
  60 use MediaWiki\Special\SpecialPageFactory;
  61 use MediaWiki\Storage\BlobStore;
  62 use MediaWiki\Storage\BlobStoreFactory;
  63 use MediaWiki\Storage\NameTableStoreFactory;
  64 use MediaWiki\Storage\SqlBlobStore;
  65
  66 return [
  67         'ActorMigration' => function ( MediaWikiServices $services ) : ActorMigration {
  68                 return new ActorMigration(
  69                         $services->getMainConfig()->get( 'ActorTableSchemaMigrationStage' )
  70                 );
  71         },
  72
  73         'BlobStore' => function ( MediaWikiServices $services ) : BlobStore {
  74                 return $services->getService( '_SqlBlobStore' );
  75         },
  76
  77         'BlobStoreFactory' => function ( MediaWikiServices $services ) : BlobStoreFactory {
  78                 return new BlobStoreFactory(
  79                         $services->getDBLoadBalancerFactory(),
  80                         $services->getMainWANObjectCache(),
  81                         $services->getMainConfig(),
  82                         $services->getContentLanguage()
  83                 );
  84         },
  85
  86         'CommentStore' => function ( MediaWikiServices $services ) : CommentStore {
  87                 return new CommentStore(
  88                         $services->getContentLanguage(),
  89                         MIGRATION_NEW
  90                 );
  91         },
  92
  93         'ConfigFactory' => function ( MediaWikiServices $services ) : ConfigFactory {
  94                 // Use the bootstrap config to initialize the ConfigFactory.
  95                 $registry = $services->getBootstrapConfig()->get( 'ConfigRegistry' );
  96                 $factory = new ConfigFactory();
  97
  98                 foreach ( $registry as $name => $callback ) {
  99                         $factory->register( $name, $callback );
 100                 }
 101                 return $factory;
 102         },
 103
 104         'ConfigRepository' => function ( MediaWikiServices $services ) : ConfigRepository {
 105                 return new ConfigRepository( $services->getConfigFactory() );
 106         },
 107
 108         'ConfiguredReadOnlyMode' => function ( MediaWikiServices $services ) : ConfiguredReadOnlyMode {
 109                 return new ConfiguredReadOnlyMode( $services->getMainConfig() );
 110         },
 111
 112         'ContentLanguage' => function ( MediaWikiServices $services ) : Language {
 113                 return Language::factory( $services->getMainConfig()->get( 'LanguageCode' ) );
 114         },
 115
 116         'CryptHKDF' => function ( MediaWikiServices $services ) : CryptHKDF {
 117                 $config = $services->getMainConfig();
 118
 119                 $secret = $config->get( 'HKDFSecret' ) ?: $config->get( 'SecretKey' );
 120                 if ( !$secret ) {
 121                         throw new RuntimeException( "Cannot use MWCryptHKDF without a secret." );
 122                 }
 123
 124                 // In HKDF, the context can be known to the attacker, but this will
 125                 // keep simultaneous runs from producing the same output.
 126                 $context = [ microtime(), getmypid(), gethostname() ];
 127
 128                 // Setup salt cache. Use APC, or fallback to the main cache if it isn't setup
 129                 $cache = $services->getLocalServerObjectCache();
 130                 if ( $cache instanceof EmptyBagOStuff ) {
 131                         $cache = ObjectCache::getLocalClusterInstance();
 132                 }
 133
 134                 return new CryptHKDF( $secret, $config->get( 'HKDFAlgorithm' ), $cache, $context );
 135         },
 136
 137         'CryptRand' => function () : CryptRand {
 138                 return new CryptRand();
 139         },
 140
 141         'DBLoadBalancer' => function ( MediaWikiServices $services ) : Wikimedia\Rdbms\LoadBalancer {
 142                 // just return the default LB from the DBLoadBalancerFactory service
 143                 return $services->getDBLoadBalancerFactory()->getMainLB();
 144         },
 145
 146         'DBLoadBalancerFactory' =>
 147         function ( MediaWikiServices $services ) : Wikimedia\Rdbms\LBFactory {
 148                 $mainConfig = $services->getMainConfig();
 149
 150                 $lbConf = MWLBFactory::applyDefaultConfig(
 151                         $mainConfig->get( 'LBFactoryConf' ),
 152                         $mainConfig,
 153                         $services->getConfiguredReadOnlyMode(),
 154                         $services->getLocalServerObjectCache(),
 155                         $services->getMainObjectStash(),
 156                         $services->getMainWANObjectCache()
 157                 );
 158                 $class = MWLBFactory::getLBFactoryClass( $lbConf );
 159
 160                 $instance = new $class( $lbConf );
 161                 MWLBFactory::setSchemaAliases( $instance, $mainConfig );
 162
 163                 return $instance;
 164         },
 165
 166         'EventRelayerGroup' => function ( MediaWikiServices $services ) : EventRelayerGroup {
 167                 return new EventRelayerGroup( $services->getMainConfig()->get( 'EventRelayerConfig' ) );
 168         },
 169
 170         'ExternalStoreFactory' => function ( MediaWikiServices $services ) : ExternalStoreFactory {
 171                 $config = $services->getMainConfig();
 172
 173                 return new ExternalStoreFactory(
 174                         $config->get( 'ExternalStores' )
 175                 );
 176         },
 177
 178         'GenderCache' => function ( MediaWikiServices $services ) : GenderCache {
 179                 return new GenderCache();
 180         },
 181
 182         'HttpRequestFactory' =>
 183         function ( MediaWikiServices $services ) : \MediaWiki\Http\HttpRequestFactory {
 184                 return new \MediaWiki\Http\HttpRequestFactory();
 185         },
 186
 187         'InterwikiLookup' => function ( MediaWikiServices $services ) : InterwikiLookup {
 188                 $config = $services->getMainConfig();
 189                 return new ClassicInterwikiLookup(
 190                         $services->getContentLanguage(),
 191                         $services->getMainWANObjectCache(),
 192                         $config->get( 'InterwikiExpiry' ),
 193                         $config->get( 'InterwikiCache' ),
 194                         $config->get( 'InterwikiScopes' ),
 195                         $config->get( 'InterwikiFallbackSite' )
 196                 );
 197         },
 198
 199         'LinkCache' => function ( MediaWikiServices $services ) : LinkCache {
 200                 return new LinkCache(
 201                         $services->getTitleFormatter(),
 202                         $services->getMainWANObjectCache()
 203                 );
 204         },
 205
 206         'LinkRenderer' => function ( MediaWikiServices $services ) : LinkRenderer {
 207                 if ( defined( 'MW_NO_SESSION' ) ) {
 208                         return $services->getLinkRendererFactory()->create();
 209                 } else {
 210                         return $services->getLinkRendererFactory()->createForUser(
 211                                 RequestContext::getMain()->getUser()
 212                         );
 213                 }
 214         },
 215
 216         'LinkRendererFactory' => function ( MediaWikiServices $services ) : LinkRendererFactory {
 217                 return new LinkRendererFactory(
 218                         $services->getTitleFormatter(),
 219                         $services->getLinkCache()
 220                 );
 221         },
 222
 223         'LocalServerObjectCache' => function ( MediaWikiServices $services ) : BagOStuff {
 224                 $cacheId = \ObjectCache::detectLocalServerCache();
 225                 return \ObjectCache::newFromId( $cacheId );
 226         },
 227
 228         'MagicWordFactory' => function ( MediaWikiServices $services ) : MagicWordFactory {
 229                 return new MagicWordFactory( $services->getContentLanguage() );
 230         },
 231
 232         'MainConfig' => function ( MediaWikiServices $services ) : Config {
 233                 // Use the 'main' config from the ConfigFactory service.
 234                 return $services->getConfigFactory()->makeConfig( 'main' );
 235         },
 236
 237         'MainObjectStash' => function ( MediaWikiServices $services ) : BagOStuff {
 238                 $mainConfig = $services->getMainConfig();
 239
 240                 $id = $mainConfig->get( 'MainStash' );
 241                 if ( !isset( $mainConfig->get( 'ObjectCaches' )[$id] ) ) {
 242                         throw new UnexpectedValueException(
 243                                 "Cache type \"$id\" is not present in \$wgObjectCaches." );
 244                 }
 245
 246                 return \ObjectCache::newFromParams( $mainConfig->get( 'ObjectCaches' )[$id] );
 247         },
 248
 249         'MainWANObjectCache' => function ( MediaWikiServices $services ) : WANObjectCache {
 250                 $mainConfig = $services->getMainConfig();
 251
 252                 $id = $mainConfig->get( 'MainWANCache' );
 253                 if ( !isset( $mainConfig->get( 'WANObjectCaches' )[$id] ) ) {
 254                         throw new UnexpectedValueException(
 255                                 "WAN cache type \"$id\" is not present in \$wgWANObjectCaches." );
 256                 }
 257
 258                 $params = $mainConfig->get( 'WANObjectCaches' )[$id];
 259                 $objectCacheId = $params['cacheId'];
 260                 if ( !isset( $mainConfig->get( 'ObjectCaches' )[$objectCacheId] ) ) {
 261                         throw new UnexpectedValueException(
 262                                 "Cache type \"$objectCacheId\" is not present in \$wgObjectCaches." );
 263                 }
 264                 $params['store'] = $mainConfig->get( 'ObjectCaches' )[$objectCacheId];
 265
 266                 return \ObjectCache::newWANCacheFromParams( $params );
 267         },
 268
 269         'MediaHandlerFactory' => function ( MediaWikiServices $services ) : MediaHandlerFactory {
 270                 return new MediaHandlerFactory(
 271                         $services->getMainConfig()->get( 'MediaHandlers' )
 272                 );
 273         },
 274
 275         'MimeAnalyzer' => function ( MediaWikiServices $services ) : MimeAnalyzer {
 276                 $logger = LoggerFactory::getInstance( 'Mime' );
 277                 $mainConfig = $services->getMainConfig();
 278                 $params = [
 279                         'typeFile' => $mainConfig->get( 'MimeTypeFile' ),
 280                         'infoFile' => $mainConfig->get( 'MimeInfoFile' ),
 281                         'xmlTypes' => $mainConfig->get( 'XMLMimeTypes' ),
 282                         'guessCallback' =>
 283                                 function ( $mimeAnalyzer, &$head, &$tail, $file, &$mime ) use ( $logger ) {
 284                                         // Also test DjVu
 285                                         $deja = new DjVuImage( $file );
 286                                         if ( $deja->isValid() ) {
 287                                                 $logger->info( "Detected $file as image/vnd.djvu\n" );
 288                                                 $mime = 'image/vnd.djvu';
 289
 290                                                 return;
 291                                         }
 292                                         // Some strings by reference for performance - assuming well-behaved hooks
 293                                         Hooks::run(
 294                                                 'MimeMagicGuessFromContent',
 295                                                 [ $mimeAnalyzer, &$head, &$tail, $file, &$mime ]
 296                                         );
 297                                 },
 298                         'extCallback' => function ( $mimeAnalyzer, $ext, &$mime ) {
 299                                 // Media handling extensions can improve the MIME detected
 300                                 Hooks::run( 'MimeMagicImproveFromExtension', [ $mimeAnalyzer, $ext, &$mime ] );
 301                         },
 302                         'initCallback' => function ( $mimeAnalyzer ) {
 303                                 // Allow media handling extensions adding MIME-types and MIME-info
 304                                 Hooks::run( 'MimeMagicInit', [ $mimeAnalyzer ] );
 305                         },
 306                         'logger' => $logger
 307                 ];
 308
 309                 if ( $params['infoFile'] === 'includes/mime.info' ) {
 310                         $params['infoFile'] = __DIR__ . "/libs/mime/mime.info";
 311                 }
 312
 313                 if ( $params['typeFile'] === 'includes/mime.types' ) {
 314                         $params['typeFile'] = __DIR__ . "/libs/mime/mime.types";
 315                 }
 316
 317                 $detectorCmd = $mainConfig->get( 'MimeDetectorCommand' );
 318                 if ( $detectorCmd ) {
 319                         $factory = $services->getShellCommandFactory();
 320                         $params['detectCallback'] = function ( $file ) use ( $detectorCmd, $factory ) {
 321                                 $result = $factory->create()
 322                                         // $wgMimeDetectorCommand can contain commands with parameters
 323                                         ->unsafeParams( $detectorCmd )
 324                                         ->params( $file )
 325                                         ->execute();
 326                                 return $result->getStdout();
 327                         };
 328                 }
 329
 330                 return new MimeAnalyzer( $params );
 331         },
 332
 333         'NameTableStoreFactory' => function ( MediaWikiServices $services ) : NameTableStoreFactory {
 334                 return new NameTableStoreFactory(
 335                         $services->getDBLoadBalancerFactory(),
 336                         $services->getMainWANObjectCache(),
 337                         LoggerFactory::getInstance( 'NameTableSqlStore' )
 338                 );
 339         },
 340
 341         'OldRevisionImporter' => function ( MediaWikiServices $services ) : OldRevisionImporter {
 342                 return new ImportableOldRevisionImporter(
 343                         true,
 344                         LoggerFactory::getInstance( 'OldRevisionImporter' ),
 345                         $services->getDBLoadBalancer()
 346                 );
 347         },
 348
 349         'Parser' => function ( MediaWikiServices $services ) : Parser {
 350                 return $services->getParserFactory()->create();
 351         },
 352
 353         'ParserCache' => function ( MediaWikiServices $services ) : ParserCache {
 354                 $config = $services->getMainConfig();
 355                 $cache = ObjectCache::getInstance( $config->get( 'ParserCacheType' ) );
 356                 wfDebugLog( 'caches', 'parser: ' . get_class( $cache ) );
 357
 358                 return new ParserCache(
 359                         $cache,
 360                         $config->get( 'CacheEpoch' )
 361                 );
 362         },
 363
 364         'ParserFactory' => function ( MediaWikiServices $services ) : ParserFactory {
 365                 return new ParserFactory(
 366                         $services->getMainConfig()->get( 'ParserConf' ),
 367                         $services->getMagicWordFactory(),
 368                         $services->getContentLanguage(),
 369                         wfUrlProtocols(),
 370                         $services->getSpecialPageFactory(),
 371                         $services->getMainConfig(),
 372                         $services->getLinkRendererFactory()
 373                 );
 374         },
 375
 376         'PasswordFactory' => function ( MediaWikiServices $services ) : PasswordFactory {
 377                 $config = $services->getMainConfig();
 378                 return new PasswordFactory(
 379                         $config->get( 'PasswordConfig' ),
 380                         $config->get( 'PasswordDefault' )
 381                 );
 382         },
 383
 384         'PerDbNameStatsdDataFactory' =>
 385         function ( MediaWikiServices $services ) : StatsdDataFactoryInterface {
 386                 $config = $services->getMainConfig();
 387                 $wiki = $config->get( 'DBname' );
 388                 return new PrefixingStatsdDataFactoryProxy(
 389                         $services->getStatsdDataFactory(),
 390                         $wiki
 391                 );
 392         },
 393
 394         'PermissionManager' => function ( MediaWikiServices $services ) : PermissionManager {
 395                 $config = $services->getMainConfig();
 396                 return new PermissionManager(
 397                         $services->getSpecialPageFactory(),
 398                         $config->get( 'WhitelistRead' ),
 399                         $config->get( 'WhitelistReadRegexp' ),
 400                         $config->get( 'EmailConfirmToEdit' ),
 401                         $config->get( 'BlockDisablesLogin' ) );
 402         },
 403
 404         'PreferencesFactory' => function ( MediaWikiServices $services ) : PreferencesFactory {
 405                 $factory = new DefaultPreferencesFactory(
 406                         $services->getMainConfig(),
 407                         $services->getContentLanguage(),
 408                         AuthManager::singleton(),
 409                         $services->getLinkRendererFactory()->create()
 410                 );
 411                 $factory->setLogger( LoggerFactory::getInstance( 'preferences' ) );
 412
 413                 return $factory;
 414         },
 415
 416         'ProxyLookup' => function ( MediaWikiServices $services ) : ProxyLookup {
 417                 $mainConfig = $services->getMainConfig();
 418                 return new ProxyLookup(
 419                         $mainConfig->get( 'SquidServers' ),
 420                         $mainConfig->get( 'SquidServersNoPurge' )
 421                 );
 422         },
 423
 424         'ReadOnlyMode' => function ( MediaWikiServices $services ) : ReadOnlyMode {
 425                 return new ReadOnlyMode(
 426                         $services->getConfiguredReadOnlyMode(),
 427                         $services->getDBLoadBalancer()
 428                 );
 429         },
 430
 431         'ResourceLoader' => function ( MediaWikiServices $services ) : ResourceLoader {
 432                 global $IP;
 433                 $config = $services->getMainConfig();
 434
 435                 $rl = new ResourceLoader(
 436                         $config,
 437                         LoggerFactory::getInstance( 'resourceloader' )
 438                 );
 439                 $rl->addSource( $config->get( 'ResourceLoaderSources' ) );
 440                 $rl->register( include "$IP/resources/Resources.php" );
 441
 442                 return $rl;
 443         },
 444
 445         'RevisionFactory' => function ( MediaWikiServices $services ) : RevisionFactory {
 446                 return $services->getRevisionStore();
 447         },
 448
 449         'RevisionLookup' => function ( MediaWikiServices $services ) : RevisionLookup {
 450                 return $services->getRevisionStore();
 451         },
 452
 453         'RevisionRenderer' => function ( MediaWikiServices $services ) : RevisionRenderer {
 454                 $renderer = new RevisionRenderer(
 455                         $services->getDBLoadBalancer(),
 456                         $services->getSlotRoleRegistry()
 457                 );
 458
 459                 $renderer->setLogger( LoggerFactory::getInstance( 'SaveParse' ) );
 460                 return $renderer;
 461         },
 462
 463         'RevisionStore' => function ( MediaWikiServices $services ) : RevisionStore {
 464                 return $services->getRevisionStoreFactory()->getRevisionStore();
 465         },
 466
 467         'RevisionStoreFactory' => function ( MediaWikiServices $services ) : RevisionStoreFactory {
 468                 $config = $services->getMainConfig();
 469                 $store = new RevisionStoreFactory(
 470                         $services->getDBLoadBalancerFactory(),
 471                         $services->getBlobStoreFactory(),
 472                         $services->getNameTableStoreFactory(),
 473                         $services->getSlotRoleRegistry(),
 474                         $services->getMainWANObjectCache(),
 475                         $services->getCommentStore(),
 476                         $services->getActorMigration(),
 477                         $config->get( 'MultiContentRevisionSchemaMigrationStage' ),
 478                         LoggerFactory::getProvider(),
 479                         $config->get( 'ContentHandlerUseDB' )
 480                 );
 481
 482                 return $store;
 483         },
 484
 485         'SearchEngineConfig' => function ( MediaWikiServices $services ) : SearchEngineConfig {
 486                 return new SearchEngineConfig( $services->getMainConfig(),
 487                         $services->getContentLanguage() );
 488         },
 489
 490         'SearchEngineFactory' => function ( MediaWikiServices $services ) : SearchEngineFactory {
 491                 return new SearchEngineFactory( $services->getSearchEngineConfig() );
 492         },
 493
 494         'ShellCommandFactory' => function ( MediaWikiServices $services ) : CommandFactory {
 495                 $config = $services->getMainConfig();
 496
 497                 $limits = [
 498                         'time' => $config->get( 'MaxShellTime' ),
 499                         'walltime' => $config->get( 'MaxShellWallClockTime' ),
 500                         'memory' => $config->get( 'MaxShellMemory' ),
 501                         'filesize' => $config->get( 'MaxShellFileSize' ),
 502                 ];
 503                 $cgroup = $config->get( 'ShellCgroup' );
 504                 $restrictionMethod = $config->get( 'ShellRestrictionMethod' );
 505
 506                 $factory = new CommandFactory( $limits, $cgroup, $restrictionMethod );
 507                 $factory->setLogger( LoggerFactory::getInstance( 'exec' ) );
 508                 $factory->logStderr();
 509
 510                 return $factory;
 511         },
 512
 513         'SiteLookup' => function ( MediaWikiServices $services ) : SiteLookup {
 514                 // Use SiteStore as the SiteLookup as well. This was originally separated
 515                 // to allow for a cacheable read-only interface (using FileBasedSiteLookup),
 516                 // but this was never used. SiteStore has caching (see below).
 517                 return $services->getSiteStore();
 518         },
 519
 520         'SiteStore' => function ( MediaWikiServices $services ) : SiteStore {
 521                 $rawSiteStore = new DBSiteStore( $services->getDBLoadBalancer() );
 522
 523                 // TODO: replace wfGetCache with a CacheFactory service.
 524                 // TODO: replace wfIsHHVM with a capabilities service.
 525                 $cache = wfGetCache( wfIsHHVM() ? CACHE_ACCEL : CACHE_ANYTHING );
 526
 527                 return new CachingSiteStore( $rawSiteStore, $cache );
 528         },
 529
 530         'SkinFactory' => function ( MediaWikiServices $services ) : SkinFactory {
 531                 $factory = new SkinFactory();
 532
 533                 $names = $services->getMainConfig()->get( 'ValidSkinNames' );
 534
 535                 foreach ( $names as $name => $skin ) {
 536                         $factory->register( $name, $skin, function () use ( $name, $skin ) {
 537                                 $class = "Skin$skin";
 538                                 return new $class( $name );
 539                         } );
 540                 }
 541                 // Register a hidden "fallback" skin
 542                 $factory->register( 'fallback', 'Fallback', function () {
 543                         return new SkinFallback;
 544                 } );
 545                 // Register a hidden skin for api output
 546                 $factory->register( 'apioutput', 'ApiOutput', function () {
 547                         return new SkinApi;
 548                 } );
 549
 550                 return $factory;
 551         },
 552
 553         'SlotRoleRegistry' => function ( MediaWikiServices $services ) : SlotRoleRegistry {
 554                 $config = $services->getMainConfig();
 555
 556                 $registry = new SlotRoleRegistry(
 557                         $services->getNameTableStoreFactory()->getSlotRoles()
 558                 );
 559
 560                 $registry->defineRole( 'main', function () use ( $config ) {
 561                         return new MainSlotRoleHandler(
 562                                 $config->get( 'NamespaceContentModels' )
 563                         );
 564                 } );
 565
 566                 return $registry;
 567         },
 568
 569         'SpecialPageFactory' => function ( MediaWikiServices $services ) : SpecialPageFactory {
 570                 return new SpecialPageFactory(
 571                         $services->getMainConfig(),
 572                         $services->getContentLanguage()
 573                 );
 574         },
 575
 576         'StatsdDataFactory' => function ( MediaWikiServices $services ) : IBufferingStatsdDataFactory {
 577                 return new BufferingStatsdDataFactory(
 578                         rtrim( $services->getMainConfig()->get( 'StatsdMetricPrefix' ), '.' )
 579                 );
 580         },
 581
 582         'TitleFormatter' => function ( MediaWikiServices $services ) : TitleFormatter {
 583                 return $services->getService( '_MediaWikiTitleCodec' );
 584         },
 585
 586         'TitleParser' => function ( MediaWikiServices $services ) : TitleParser {
 587                 return $services->getService( '_MediaWikiTitleCodec' );
 588         },
 589
 590         'UploadRevisionImporter' => function ( MediaWikiServices $services ) : UploadRevisionImporter {
 591                 return new ImportableUploadRevisionImporter(
 592                         $services->getMainConfig()->get( 'EnableUploads' ),
 593                         LoggerFactory::getInstance( 'UploadRevisionImporter' )
 594                 );
 595         },
 596
 597         'VirtualRESTServiceClient' =>
 598         function ( MediaWikiServices $services ) : VirtualRESTServiceClient {
 599                 $config = $services->getMainConfig()->get( 'VirtualRestConfig' );
 600
 601                 $vrsClient = new VirtualRESTServiceClient( new MultiHttpClient( [] ) );
 602                 foreach ( $config['paths'] as $prefix => $serviceConfig ) {
 603                         $class = $serviceConfig['class'];
 604                         // Merge in the global defaults
 605                         $constructArg = $serviceConfig['options'] ?? [];
 606                         $constructArg += $config['global'];
 607                         // Make the VRS service available at the mount point
 608                         $vrsClient->mount( $prefix, [ 'class' => $class, 'config' => $constructArg ] );
 609                 }
 610
 611                 return $vrsClient;
 612         },
 613
 614         'WatchedItemQueryService' =>
 615         function ( MediaWikiServices $services ) : WatchedItemQueryService {
 616                 return new WatchedItemQueryService(
 617                         $services->getDBLoadBalancer(),
 618                         $services->getCommentStore(),
 619                         $services->getActorMigration(),
 620                         $services->getWatchedItemStore()
 621                 );
 622         },
 623
 624         'WatchedItemStore' => function ( MediaWikiServices $services ) : WatchedItemStore {
 625                 $store = new WatchedItemStore(
 626                         $services->getDBLoadBalancerFactory(),
 627                         JobQueueGroup::singleton(),
 628                         $services->getMainObjectStash(),
 629                         new HashBagOStuff( [ 'maxKeys' => 100 ] ),
 630                         $services->getReadOnlyMode(),
 631                         $services->getMainConfig()->get( 'UpdateRowsPerQuery' )
 632                 );
 633                 $store->setStatsdDataFactory( $services->getStatsdDataFactory() );
 634
 635                 if ( $services->getMainConfig()->get( 'ReadOnlyWatchedItemStore' ) ) {
 636                         $store = new NoWriteWatchedItemStore( $store );
 637                 }
 638
 639                 return $store;
 640         },
 641
 642         'WikiRevisionOldRevisionImporterNoUpdates' =>
 643         function ( MediaWikiServices $services ) : ImportableOldRevisionImporter {
 644                 return new ImportableOldRevisionImporter(
 645                         false,
 646                         LoggerFactory::getInstance( 'OldRevisionImporter' ),
 647                         $services->getDBLoadBalancer()
 648                 );
 649         },
 650
 651         '_MediaWikiTitleCodec' => function ( MediaWikiServices $services ) : MediaWikiTitleCodec {
 652                 return new MediaWikiTitleCodec(
 653                         $services->getContentLanguage(),
 654                         $services->getGenderCache(),
 655                         $services->getMainConfig()->get( 'LocalInterwikis' ),
 656                         $services->getInterwikiLookup()
 657                 );
 658         },
 659
 660         '_SqlBlobStore' => function ( MediaWikiServices $services ) : SqlBlobStore {
 661                 return $services->getBlobStoreFactory()->newSqlBlobStore();
 662         },
 663
 664         ///////////////////////////////////////////////////////////////////////////
 665         // NOTE: When adding a service here, don't forget to add a getter function
 666         // in the MediaWikiServices class. The convenience getter should just call
 667         // $this->getService( 'FooBarService' ).
 668         ///////////////////////////////////////////////////////////////////////////
 669
 670 ];