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\Block\BlockRestrictionStore;
  43 use MediaWiki\Config\ConfigRepository;
  44 use MediaWiki\Interwiki\ClassicInterwikiLookup;
  45 use MediaWiki\Interwiki\InterwikiLookup;
  46 use MediaWiki\Linker\LinkRenderer;
  47 use MediaWiki\Linker\LinkRendererFactory;
  48 use MediaWiki\Logger\LoggerFactory;
  49 use MediaWiki\MediaWikiServices;
  50 use MediaWiki\Permissions\PermissionManager;
  51 use MediaWiki\Preferences\PreferencesFactory;
  52 use MediaWiki\Preferences\DefaultPreferencesFactory;
  53 use MediaWiki\Revision\MainSlotRoleHandler;
  54 use MediaWiki\Revision\RevisionFactory;
  55 use MediaWiki\Revision\RevisionLookup;
  56 use MediaWiki\Revision\SlotRoleRegistry;
  57 use MediaWiki\Revision\RevisionRenderer;
  58 use MediaWiki\Revision\RevisionStore;
  59 use MediaWiki\Revision\RevisionStoreFactory;
  60 use MediaWiki\Shell\CommandFactory;
  61 use MediaWiki\Special\SpecialPageFactory;
  62 use MediaWiki\Storage\BlobStore;
  63 use MediaWiki\Storage\BlobStoreFactory;
  64 use MediaWiki\Storage\NameTableStoreFactory;
  65 use MediaWiki\Storage\SqlBlobStore;
  66
  67 return [
  68         'ActorMigration' => function ( MediaWikiServices $services ) : ActorMigration {
  69                 return new ActorMigration(
  70                         $services->getMainConfig()->get( 'ActorTableSchemaMigrationStage' )
  71                 );
  72         },
  73
  74         'BlobStore' => function ( MediaWikiServices $services ) : BlobStore {
  75                 return $services->getService( '_SqlBlobStore' );
  76         },
  77
  78         'BlobStoreFactory' => function ( MediaWikiServices $services ) : BlobStoreFactory {
  79                 return new BlobStoreFactory(
  80                         $services->getDBLoadBalancerFactory(),
  81                         $services->getMainWANObjectCache(),
  82                         $services->getMainConfig(),
  83                         $services->getContentLanguage()
  84                 );
  85         },
  86
  87         'BlockRestrictionStore' => function ( MediaWikiServices $services ) : BlockRestrictionStore {
  88                 return new BlockRestrictionStore(
  89                         $services->getDBLoadBalancer()
  90                 );
  91         },
  92
  93         'CommentStore' => function ( MediaWikiServices $services ) : CommentStore {
  94                 return new CommentStore(
  95                         $services->getContentLanguage(),
  96                         MIGRATION_NEW
  97                 );
  98         },
  99
 100         'ConfigFactory' => function ( MediaWikiServices $services ) : ConfigFactory {
 101                 // Use the bootstrap config to initialize the ConfigFactory.
 102                 $registry = $services->getBootstrapConfig()->get( 'ConfigRegistry' );
 103                 $factory = new ConfigFactory();
 104
 105                 foreach ( $registry as $name => $callback ) {
 106                         $factory->register( $name, $callback );
 107                 }
 108                 return $factory;
 109         },
 110
 111         'ConfigRepository' => function ( MediaWikiServices $services ) : ConfigRepository {
 112                 return new ConfigRepository( $services->getConfigFactory() );
 113         },
 114
 115         'ConfiguredReadOnlyMode' => function ( MediaWikiServices $services ) : ConfiguredReadOnlyMode {
 116                 return new ConfiguredReadOnlyMode( $services->getMainConfig() );
 117         },
 118
 119         'ContentLanguage' => function ( MediaWikiServices $services ) : Language {
 120                 return Language::factory( $services->getMainConfig()->get( 'LanguageCode' ) );
 121         },
 122
 123         'CryptHKDF' => function ( MediaWikiServices $services ) : CryptHKDF {
 124                 $config = $services->getMainConfig();
 125
 126                 $secret = $config->get( 'HKDFSecret' ) ?: $config->get( 'SecretKey' );
 127                 if ( !$secret ) {
 128                         throw new RuntimeException( "Cannot use MWCryptHKDF without a secret." );
 129                 }
 130
 131                 // In HKDF, the context can be known to the attacker, but this will
 132                 // keep simultaneous runs from producing the same output.
 133                 $context = [ microtime(), getmypid(), gethostname() ];
 134
 135                 // Setup salt cache. Use APC, or fallback to the main cache if it isn't setup
 136                 $cache = $services->getLocalServerObjectCache();
 137                 if ( $cache instanceof EmptyBagOStuff ) {
 138                         $cache = ObjectCache::getLocalClusterInstance();
 139                 }
 140
 141                 return new CryptHKDF( $secret, $config->get( 'HKDFAlgorithm' ), $cache, $context );
 142         },
 143
 144         'CryptRand' => function () : CryptRand {
 145                 return new CryptRand();
 146         },
 147
 148         'DBLoadBalancer' => function ( MediaWikiServices $services ) : Wikimedia\Rdbms\LoadBalancer {
 149                 // just return the default LB from the DBLoadBalancerFactory service
 150                 return $services->getDBLoadBalancerFactory()->getMainLB();
 151         },
 152
 153         'DBLoadBalancerFactory' =>
 154         function ( MediaWikiServices $services ) : Wikimedia\Rdbms\LBFactory {
 155                 $mainConfig = $services->getMainConfig();
 156
 157                 $lbConf = MWLBFactory::applyDefaultConfig(
 158                         $mainConfig->get( 'LBFactoryConf' ),
 159                         $mainConfig,
 160                         $services->getConfiguredReadOnlyMode(),
 161                         $services->getLocalServerObjectCache(),
 162                         $services->getMainObjectStash(),
 163                         $services->getMainWANObjectCache()
 164                 );
 165                 $class = MWLBFactory::getLBFactoryClass( $lbConf );
 166
 167                 $instance = new $class( $lbConf );
 168                 MWLBFactory::setSchemaAliases( $instance, $mainConfig );
 169
 170                 return $instance;
 171         },
 172
 173         'EventRelayerGroup' => function ( MediaWikiServices $services ) : EventRelayerGroup {
 174                 return new EventRelayerGroup( $services->getMainConfig()->get( 'EventRelayerConfig' ) );
 175         },
 176
 177         'ExternalStoreFactory' => function ( MediaWikiServices $services ) : ExternalStoreFactory {
 178                 $config = $services->getMainConfig();
 179
 180                 return new ExternalStoreFactory(
 181                         $config->get( 'ExternalStores' )
 182                 );
 183         },
 184
 185         'GenderCache' => function ( MediaWikiServices $services ) : GenderCache {
 186                 return new GenderCache();
 187         },
 188
 189         'HttpRequestFactory' =>
 190         function ( MediaWikiServices $services ) : \MediaWiki\Http\HttpRequestFactory {
 191                 return new \MediaWiki\Http\HttpRequestFactory();
 192         },
 193
 194         'InterwikiLookup' => function ( MediaWikiServices $services ) : InterwikiLookup {
 195                 $config = $services->getMainConfig();
 196                 return new ClassicInterwikiLookup(
 197                         $services->getContentLanguage(),
 198                         $services->getMainWANObjectCache(),
 199                         $config->get( 'InterwikiExpiry' ),
 200                         $config->get( 'InterwikiCache' ),
 201                         $config->get( 'InterwikiScopes' ),
 202                         $config->get( 'InterwikiFallbackSite' )
 203                 );
 204         },
 205
 206         'LinkCache' => function ( MediaWikiServices $services ) : LinkCache {
 207                 return new LinkCache(
 208                         $services->getTitleFormatter(),
 209                         $services->getMainWANObjectCache()
 210                 );
 211         },
 212
 213         'LinkRenderer' => function ( MediaWikiServices $services ) : LinkRenderer {
 214                 if ( defined( 'MW_NO_SESSION' ) ) {
 215                         return $services->getLinkRendererFactory()->create();
 216                 } else {
 217                         return $services->getLinkRendererFactory()->createForUser(
 218                                 RequestContext::getMain()->getUser()
 219                         );
 220                 }
 221         },
 222
 223         'LinkRendererFactory' => function ( MediaWikiServices $services ) : LinkRendererFactory {
 224                 return new LinkRendererFactory(
 225                         $services->getTitleFormatter(),
 226                         $services->getLinkCache()
 227                 );
 228         },
 229
 230         'LocalServerObjectCache' => function ( MediaWikiServices $services ) : BagOStuff {
 231                 $cacheId = \ObjectCache::detectLocalServerCache();
 232                 return \ObjectCache::newFromId( $cacheId );
 233         },
 234
 235         'MagicWordFactory' => function ( MediaWikiServices $services ) : MagicWordFactory {
 236                 return new MagicWordFactory( $services->getContentLanguage() );
 237         },
 238
 239         'MainConfig' => function ( MediaWikiServices $services ) : Config {
 240                 // Use the 'main' config from the ConfigFactory service.
 241                 return $services->getConfigFactory()->makeConfig( 'main' );
 242         },
 243
 244         'MainObjectStash' => function ( MediaWikiServices $services ) : BagOStuff {
 245                 $mainConfig = $services->getMainConfig();
 246
 247                 $id = $mainConfig->get( 'MainStash' );
 248                 if ( !isset( $mainConfig->get( 'ObjectCaches' )[$id] ) ) {
 249                         throw new UnexpectedValueException(
 250                                 "Cache type \"$id\" is not present in \$wgObjectCaches." );
 251                 }
 252
 253                 return \ObjectCache::newFromParams( $mainConfig->get( 'ObjectCaches' )[$id] );
 254         },
 255
 256         'MainWANObjectCache' => function ( MediaWikiServices $services ) : WANObjectCache {
 257                 $mainConfig = $services->getMainConfig();
 258
 259                 $id = $mainConfig->get( 'MainWANCache' );
 260                 if ( !isset( $mainConfig->get( 'WANObjectCaches' )[$id] ) ) {
 261                         throw new UnexpectedValueException(
 262                                 "WAN cache type \"$id\" is not present in \$wgWANObjectCaches." );
 263                 }
 264
 265                 $params = $mainConfig->get( 'WANObjectCaches' )[$id];
 266                 $objectCacheId = $params['cacheId'];
 267                 if ( !isset( $mainConfig->get( 'ObjectCaches' )[$objectCacheId] ) ) {
 268                         throw new UnexpectedValueException(
 269                                 "Cache type \"$objectCacheId\" is not present in \$wgObjectCaches." );
 270                 }
 271                 $params['store'] = $mainConfig->get( 'ObjectCaches' )[$objectCacheId];
 272
 273                 return \ObjectCache::newWANCacheFromParams( $params );
 274         },
 275
 276         'MediaHandlerFactory' => function ( MediaWikiServices $services ) : MediaHandlerFactory {
 277                 return new MediaHandlerFactory(
 278                         $services->getMainConfig()->get( 'MediaHandlers' )
 279                 );
 280         },
 281
 282         'MimeAnalyzer' => function ( MediaWikiServices $services ) : MimeAnalyzer {
 283                 $logger = LoggerFactory::getInstance( 'Mime' );
 284                 $mainConfig = $services->getMainConfig();
 285                 $params = [
 286                         'typeFile' => $mainConfig->get( 'MimeTypeFile' ),
 287                         'infoFile' => $mainConfig->get( 'MimeInfoFile' ),
 288                         'xmlTypes' => $mainConfig->get( 'XMLMimeTypes' ),
 289                         'guessCallback' =>
 290                                 function ( $mimeAnalyzer, &$head, &$tail, $file, &$mime ) use ( $logger ) {
 291                                         // Also test DjVu
 292                                         $deja = new DjVuImage( $file );
 293                                         if ( $deja->isValid() ) {
 294                                                 $logger->info( "Detected $file as image/vnd.djvu\n" );
 295                                                 $mime = 'image/vnd.djvu';
 296
 297                                                 return;
 298                                         }
 299                                         // Some strings by reference for performance - assuming well-behaved hooks
 300                                         Hooks::run(
 301                                                 'MimeMagicGuessFromContent',
 302                                                 [ $mimeAnalyzer, &$head, &$tail, $file, &$mime ]
 303                                         );
 304                                 },
 305                         'extCallback' => function ( $mimeAnalyzer, $ext, &$mime ) {
 306                                 // Media handling extensions can improve the MIME detected
 307                                 Hooks::run( 'MimeMagicImproveFromExtension', [ $mimeAnalyzer, $ext, &$mime ] );
 308                         },
 309                         'initCallback' => function ( $mimeAnalyzer ) {
 310                                 // Allow media handling extensions adding MIME-types and MIME-info
 311                                 Hooks::run( 'MimeMagicInit', [ $mimeAnalyzer ] );
 312                         },
 313                         'logger' => $logger
 314                 ];
 315
 316                 if ( $params['infoFile'] === 'includes/mime.info' ) {
 317                         $params['infoFile'] = __DIR__ . "/libs/mime/mime.info";
 318                 }
 319
 320                 if ( $params['typeFile'] === 'includes/mime.types' ) {
 321                         $params['typeFile'] = __DIR__ . "/libs/mime/mime.types";
 322                 }
 323
 324                 $detectorCmd = $mainConfig->get( 'MimeDetectorCommand' );
 325                 if ( $detectorCmd ) {
 326                         $factory = $services->getShellCommandFactory();
 327                         $params['detectCallback'] = function ( $file ) use ( $detectorCmd, $factory ) {
 328                                 $result = $factory->create()
 329                                         // $wgMimeDetectorCommand can contain commands with parameters
 330                                         ->unsafeParams( $detectorCmd )
 331                                         ->params( $file )
 332                                         ->execute();
 333                                 return $result->getStdout();
 334                         };
 335                 }
 336
 337                 return new MimeAnalyzer( $params );
 338         },
 339
 340         'NamespaceInfo' => function ( MediaWikiServices $services ) : NamespaceInfo {
 341                 return new NamespaceInfo( $services->getMainConfig() );
 342         },
 343
 344         'NameTableStoreFactory' => function ( MediaWikiServices $services ) : NameTableStoreFactory {
 345                 return new NameTableStoreFactory(
 346                         $services->getDBLoadBalancerFactory(),
 347                         $services->getMainWANObjectCache(),
 348                         LoggerFactory::getInstance( 'NameTableSqlStore' )
 349                 );
 350         },
 351
 352         'OldRevisionImporter' => function ( MediaWikiServices $services ) : OldRevisionImporter {
 353                 return new ImportableOldRevisionImporter(
 354                         true,
 355                         LoggerFactory::getInstance( 'OldRevisionImporter' ),
 356                         $services->getDBLoadBalancer()
 357                 );
 358         },
 359
 360         'Parser' => function ( MediaWikiServices $services ) : Parser {
 361                 return $services->getParserFactory()->create();
 362         },
 363
 364         'ParserCache' => function ( MediaWikiServices $services ) : ParserCache {
 365                 $config = $services->getMainConfig();
 366                 $cache = ObjectCache::getInstance( $config->get( 'ParserCacheType' ) );
 367                 wfDebugLog( 'caches', 'parser: ' . get_class( $cache ) );
 368
 369                 return new ParserCache(
 370                         $cache,
 371                         $config->get( 'CacheEpoch' )
 372                 );
 373         },
 374
 375         'ParserFactory' => function ( MediaWikiServices $services ) : ParserFactory {
 376                 return new ParserFactory(
 377                         $services->getMainConfig()->get( 'ParserConf' ),
 378                         $services->getMagicWordFactory(),
 379                         $services->getContentLanguage(),
 380                         wfUrlProtocols(),
 381                         $services->getSpecialPageFactory(),
 382                         $services->getMainConfig(),
 383                         $services->getLinkRendererFactory()
 384                 );
 385         },
 386
 387         'PasswordFactory' => function ( MediaWikiServices $services ) : PasswordFactory {
 388                 $config = $services->getMainConfig();
 389                 return new PasswordFactory(
 390                         $config->get( 'PasswordConfig' ),
 391                         $config->get( 'PasswordDefault' )
 392                 );
 393         },
 394
 395         'PerDbNameStatsdDataFactory' =>
 396         function ( MediaWikiServices $services ) : StatsdDataFactoryInterface {
 397                 $config = $services->getMainConfig();
 398                 $wiki = $config->get( 'DBname' );
 399                 return new PrefixingStatsdDataFactoryProxy(
 400                         $services->getStatsdDataFactory(),
 401                         $wiki
 402                 );
 403         },
 404
 405         'PermissionManager' => function ( MediaWikiServices $services ) : PermissionManager {
 406                 $config = $services->getMainConfig();
 407                 return new PermissionManager(
 408                         $services->getSpecialPageFactory(),
 409                         $config->get( 'WhitelistRead' ),
 410                         $config->get( 'WhitelistReadRegexp' ),
 411                         $config->get( 'EmailConfirmToEdit' ),
 412                         $config->get( 'BlockDisablesLogin' ) );
 413         },
 414
 415         'PreferencesFactory' => function ( MediaWikiServices $services ) : PreferencesFactory {
 416                 $factory = new DefaultPreferencesFactory(
 417                         $services->getMainConfig(),
 418                         $services->getContentLanguage(),
 419                         AuthManager::singleton(),
 420                         $services->getLinkRendererFactory()->create()
 421                 );
 422                 $factory->setLogger( LoggerFactory::getInstance( 'preferences' ) );
 423
 424                 return $factory;
 425         },
 426
 427         'ProxyLookup' => function ( MediaWikiServices $services ) : ProxyLookup {
 428                 $mainConfig = $services->getMainConfig();
 429                 return new ProxyLookup(
 430                         $mainConfig->get( 'SquidServers' ),
 431                         $mainConfig->get( 'SquidServersNoPurge' )
 432                 );
 433         },
 434
 435         'ReadOnlyMode' => function ( MediaWikiServices $services ) : ReadOnlyMode {
 436                 return new ReadOnlyMode(
 437                         $services->getConfiguredReadOnlyMode(),
 438                         $services->getDBLoadBalancer()
 439                 );
 440         },
 441
 442         'ResourceLoader' => function ( MediaWikiServices $services ) : ResourceLoader {
 443                 global $IP;
 444                 $config = $services->getMainConfig();
 445
 446                 $rl = new ResourceLoader(
 447                         $config,
 448                         LoggerFactory::getInstance( 'resourceloader' )
 449                 );
 450                 $rl->addSource( $config->get( 'ResourceLoaderSources' ) );
 451                 $rl->register( include "$IP/resources/Resources.php" );
 452
 453                 return $rl;
 454         },
 455
 456         'RevisionFactory' => function ( MediaWikiServices $services ) : RevisionFactory {
 457                 return $services->getRevisionStore();
 458         },
 459
 460         'RevisionLookup' => function ( MediaWikiServices $services ) : RevisionLookup {
 461                 return $services->getRevisionStore();
 462         },
 463
 464         'RevisionRenderer' => function ( MediaWikiServices $services ) : RevisionRenderer {
 465                 $renderer = new RevisionRenderer(
 466                         $services->getDBLoadBalancer(),
 467                         $services->getSlotRoleRegistry()
 468                 );
 469
 470                 $renderer->setLogger( LoggerFactory::getInstance( 'SaveParse' ) );
 471                 return $renderer;
 472         },
 473
 474         'RevisionStore' => function ( MediaWikiServices $services ) : RevisionStore {
 475                 return $services->getRevisionStoreFactory()->getRevisionStore();
 476         },
 477
 478         'RevisionStoreFactory' => function ( MediaWikiServices $services ) : RevisionStoreFactory {
 479                 $config = $services->getMainConfig();
 480                 $store = new RevisionStoreFactory(
 481                         $services->getDBLoadBalancerFactory(),
 482                         $services->getBlobStoreFactory(),
 483                         $services->getNameTableStoreFactory(),
 484                         $services->getSlotRoleRegistry(),
 485                         $services->getMainWANObjectCache(),
 486                         $services->getCommentStore(),
 487                         $services->getActorMigration(),
 488                         $config->get( 'MultiContentRevisionSchemaMigrationStage' ),
 489                         LoggerFactory::getProvider(),
 490                         $config->get( 'ContentHandlerUseDB' )
 491                 );
 492
 493                 return $store;
 494         },
 495
 496         'SearchEngineConfig' => function ( MediaWikiServices $services ) : SearchEngineConfig {
 497                 return new SearchEngineConfig( $services->getMainConfig(),
 498                         $services->getContentLanguage() );
 499         },
 500
 501         'SearchEngineFactory' => function ( MediaWikiServices $services ) : SearchEngineFactory {
 502                 return new SearchEngineFactory( $services->getSearchEngineConfig() );
 503         },
 504
 505         'ShellCommandFactory' => function ( MediaWikiServices $services ) : CommandFactory {
 506                 $config = $services->getMainConfig();
 507
 508                 $limits = [
 509                         'time' => $config->get( 'MaxShellTime' ),
 510                         'walltime' => $config->get( 'MaxShellWallClockTime' ),
 511                         'memory' => $config->get( 'MaxShellMemory' ),
 512                         'filesize' => $config->get( 'MaxShellFileSize' ),
 513                 ];
 514                 $cgroup = $config->get( 'ShellCgroup' );
 515                 $restrictionMethod = $config->get( 'ShellRestrictionMethod' );
 516
 517                 $factory = new CommandFactory( $limits, $cgroup, $restrictionMethod );
 518                 $factory->setLogger( LoggerFactory::getInstance( 'exec' ) );
 519                 $factory->logStderr();
 520
 521                 return $factory;
 522         },
 523
 524         'SiteLookup' => function ( MediaWikiServices $services ) : SiteLookup {
 525                 // Use SiteStore as the SiteLookup as well. This was originally separated
 526                 // to allow for a cacheable read-only interface (using FileBasedSiteLookup),
 527                 // but this was never used. SiteStore has caching (see below).
 528                 return $services->getSiteStore();
 529         },
 530
 531         'SiteStore' => function ( MediaWikiServices $services ) : SiteStore {
 532                 $rawSiteStore = new DBSiteStore( $services->getDBLoadBalancer() );
 533
 534                 // TODO: replace wfGetCache with a CacheFactory service.
 535                 // TODO: replace wfIsHHVM with a capabilities service.
 536                 $cache = wfGetCache( wfIsHHVM() ? CACHE_ACCEL : CACHE_ANYTHING );
 537
 538                 return new CachingSiteStore( $rawSiteStore, $cache );
 539         },
 540
 541         'SkinFactory' => function ( MediaWikiServices $services ) : SkinFactory {
 542                 $factory = new SkinFactory();
 543
 544                 $names = $services->getMainConfig()->get( 'ValidSkinNames' );
 545
 546                 foreach ( $names as $name => $skin ) {
 547                         $factory->register( $name, $skin, function () use ( $name, $skin ) {
 548                                 $class = "Skin$skin";
 549                                 return new $class( $name );
 550                         } );
 551                 }
 552                 // Register a hidden "fallback" skin
 553                 $factory->register( 'fallback', 'Fallback', function () {
 554                         return new SkinFallback;
 555                 } );
 556                 // Register a hidden skin for api output
 557                 $factory->register( 'apioutput', 'ApiOutput', function () {
 558                         return new SkinApi;
 559                 } );
 560
 561                 return $factory;
 562         },
 563
 564         'SlotRoleRegistry' => function ( MediaWikiServices $services ) : SlotRoleRegistry {
 565                 $config = $services->getMainConfig();
 566
 567                 $registry = new SlotRoleRegistry(
 568                         $services->getNameTableStoreFactory()->getSlotRoles()
 569                 );
 570
 571                 $registry->defineRole( 'main', function () use ( $config ) {
 572                         return new MainSlotRoleHandler(
 573                                 $config->get( 'NamespaceContentModels' )
 574                         );
 575                 } );
 576
 577                 return $registry;
 578         },
 579
 580         'SpecialPageFactory' => function ( MediaWikiServices $services ) : SpecialPageFactory {
 581                 $config = $services->getMainConfig();
 582                 $options = [];
 583                 foreach ( SpecialPageFactory::$constructorOptions as $key ) {
 584                         $options[$key] = $config->get( $key );
 585                 }
 586                 return new SpecialPageFactory(
 587                         $options,
 588                         $services->getContentLanguage()
 589                 );
 590         },
 591
 592         'StatsdDataFactory' => function ( MediaWikiServices $services ) : IBufferingStatsdDataFactory {
 593                 return new BufferingStatsdDataFactory(
 594                         rtrim( $services->getMainConfig()->get( 'StatsdMetricPrefix' ), '.' )
 595                 );
 596         },
 597
 598         'TitleFormatter' => function ( MediaWikiServices $services ) : TitleFormatter {
 599                 return $services->getService( '_MediaWikiTitleCodec' );
 600         },
 601
 602         'TitleParser' => function ( MediaWikiServices $services ) : TitleParser {
 603                 return $services->getService( '_MediaWikiTitleCodec' );
 604         },
 605
 606         'UploadRevisionImporter' => function ( MediaWikiServices $services ) : UploadRevisionImporter {
 607                 return new ImportableUploadRevisionImporter(
 608                         $services->getMainConfig()->get( 'EnableUploads' ),
 609                         LoggerFactory::getInstance( 'UploadRevisionImporter' )
 610                 );
 611         },
 612
 613         'VirtualRESTServiceClient' =>
 614         function ( MediaWikiServices $services ) : VirtualRESTServiceClient {
 615                 $config = $services->getMainConfig()->get( 'VirtualRestConfig' );
 616
 617                 $vrsClient = new VirtualRESTServiceClient( new MultiHttpClient( [] ) );
 618                 foreach ( $config['paths'] as $prefix => $serviceConfig ) {
 619                         $class = $serviceConfig['class'];
 620                         // Merge in the global defaults
 621                         $constructArg = $serviceConfig['options'] ?? [];
 622                         $constructArg += $config['global'];
 623                         // Make the VRS service available at the mount point
 624                         $vrsClient->mount( $prefix, [ 'class' => $class, 'config' => $constructArg ] );
 625                 }
 626
 627                 return $vrsClient;
 628         },
 629
 630         'WatchedItemQueryService' =>
 631         function ( MediaWikiServices $services ) : WatchedItemQueryService {
 632                 return new WatchedItemQueryService(
 633                         $services->getDBLoadBalancer(),
 634                         $services->getCommentStore(),
 635                         $services->getActorMigration(),
 636                         $services->getWatchedItemStore()
 637                 );
 638         },
 639
 640         'WatchedItemStore' => function ( MediaWikiServices $services ) : WatchedItemStore {
 641                 $store = new WatchedItemStore(
 642                         $services->getDBLoadBalancerFactory(),
 643                         JobQueueGroup::singleton(),
 644                         $services->getMainObjectStash(),
 645                         new HashBagOStuff( [ 'maxKeys' => 100 ] ),
 646                         $services->getReadOnlyMode(),
 647                         $services->getMainConfig()->get( 'UpdateRowsPerQuery' )
 648                 );
 649                 $store->setStatsdDataFactory( $services->getStatsdDataFactory() );
 650
 651                 if ( $services->getMainConfig()->get( 'ReadOnlyWatchedItemStore' ) ) {
 652                         $store = new NoWriteWatchedItemStore( $store );
 653                 }
 654
 655                 return $store;
 656         },
 657
 658         'WikiRevisionOldRevisionImporterNoUpdates' =>
 659         function ( MediaWikiServices $services ) : ImportableOldRevisionImporter {
 660                 return new ImportableOldRevisionImporter(
 661                         false,
 662                         LoggerFactory::getInstance( 'OldRevisionImporter' ),
 663                         $services->getDBLoadBalancer()
 664                 );
 665         },
 666
 667         '_MediaWikiTitleCodec' => function ( MediaWikiServices $services ) : MediaWikiTitleCodec {
 668                 return new MediaWikiTitleCodec(
 669                         $services->getContentLanguage(),
 670                         $services->getGenderCache(),
 671                         $services->getMainConfig()->get( 'LocalInterwikis' ),
 672                         $services->getInterwikiLookup()
 673                 );
 674         },
 675
 676         '_SqlBlobStore' => function ( MediaWikiServices $services ) : SqlBlobStore {
 677                 return $services->getBlobStoreFactory()->newSqlBlobStore();
 678         },
 679
 680         ///////////////////////////////////////////////////////////////////////////
 681         // NOTE: When adding a service here, don't forget to add a getter function
 682         // in the MediaWikiServices class. The convenience getter should just call
 683         // $this->getService( 'FooBarService' ).
 684         ///////////////////////////////////////////////////////////////////////////
 685
 686 ];