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\BlockManager;
  43 use MediaWiki\Block\BlockRestrictionStore;
  44 use MediaWiki\Config\ConfigRepository;
  45 use MediaWiki\Config\ServiceOptions;
  46 use MediaWiki\Http\HttpRequestFactory;
  47 use MediaWiki\Interwiki\ClassicInterwikiLookup;
  48 use MediaWiki\Interwiki\InterwikiLookup;
  49 use MediaWiki\Linker\LinkRenderer;
  50 use MediaWiki\Linker\LinkRendererFactory;
  51 use MediaWiki\Logger\LoggerFactory;
  52 use MediaWiki\MediaWikiServices;
  53 use MediaWiki\Permissions\PermissionManager;
  54 use MediaWiki\Preferences\PreferencesFactory;
  55 use MediaWiki\Preferences\DefaultPreferencesFactory;
  56 use MediaWiki\Revision\MainSlotRoleHandler;
  57 use MediaWiki\Revision\RevisionFactory;
  58 use MediaWiki\Revision\RevisionLookup;
  59 use MediaWiki\Revision\SlotRoleRegistry;
  60 use MediaWiki\Revision\RevisionRenderer;
  61 use MediaWiki\Revision\RevisionStore;
  62 use MediaWiki\Revision\RevisionStoreFactory;
  63 use MediaWiki\Shell\CommandFactory;
  64 use MediaWiki\Special\SpecialPageFactory;
  65 use MediaWiki\Storage\BlobStore;
  66 use MediaWiki\Storage\BlobStoreFactory;
  67 use MediaWiki\Storage\NameTableStoreFactory;
  68 use MediaWiki\Storage\SqlBlobStore;
  69 use MediaWiki\Storage\PageEditStash;
  70
  71 return [
  72         'ActorMigration' => function ( MediaWikiServices $services ) : ActorMigration {
  73                 return new ActorMigration(
  74                         $services->getMainConfig()->get( 'ActorTableSchemaMigrationStage' )
  75                 );
  76         },
  77
  78         'BlobStore' => function ( MediaWikiServices $services ) : BlobStore {
  79                 return $services->getService( '_SqlBlobStore' );
  80         },
  81
  82         'BlobStoreFactory' => function ( MediaWikiServices $services ) : BlobStoreFactory {
  83                 return new BlobStoreFactory(
  84                         $services->getDBLoadBalancerFactory(),
  85                         $services->getExternalStoreAccess(),
  86                         $services->getMainWANObjectCache(),
  87                         new ServiceOptions( BlobStoreFactory::$constructorOptions,
  88                                 $services->getMainConfig() ),
  89                         $services->getContentLanguage()
  90                 );
  91         },
  92
  93         'BlockManager' => function ( MediaWikiServices $services ) : BlockManager {
  94                 $context = RequestContext::getMain();
  95                 return new BlockManager(
  96                         new ServiceOptions(
  97                                 BlockManager::$constructorOptions, $services->getMainConfig()
  98                         ),
  99                         $context->getUser(),
 100                         $context->getRequest()
 101                 );
 102         },
 103
 104         'BlockRestrictionStore' => function ( MediaWikiServices $services ) : BlockRestrictionStore {
 105                 return new BlockRestrictionStore(
 106                         $services->getDBLoadBalancer()
 107                 );
 108         },
 109
 110         'CommentStore' => function ( MediaWikiServices $services ) : CommentStore {
 111                 return new CommentStore(
 112                         $services->getContentLanguage(),
 113                         MIGRATION_NEW
 114                 );
 115         },
 116
 117         'ConfigFactory' => function ( MediaWikiServices $services ) : ConfigFactory {
 118                 // Use the bootstrap config to initialize the ConfigFactory.
 119                 $registry = $services->getBootstrapConfig()->get( 'ConfigRegistry' );
 120                 $factory = new ConfigFactory();
 121
 122                 foreach ( $registry as $name => $callback ) {
 123                         $factory->register( $name, $callback );
 124                 }
 125                 return $factory;
 126         },
 127
 128         'ConfigRepository' => function ( MediaWikiServices $services ) : ConfigRepository {
 129                 return new ConfigRepository( $services->getConfigFactory() );
 130         },
 131
 132         'ConfiguredReadOnlyMode' => function ( MediaWikiServices $services ) : ConfiguredReadOnlyMode {
 133                 $config = $services->getMainConfig();
 134                 return new ConfiguredReadOnlyMode(
 135                         $config->get( 'ReadOnly' ),
 136                         $config->get( 'ReadOnlyFile' )
 137                 );
 138         },
 139
 140         'ContentLanguage' => function ( MediaWikiServices $services ) : Language {
 141                 return Language::factory( $services->getMainConfig()->get( 'LanguageCode' ) );
 142         },
 143
 144         'CryptHKDF' => function ( MediaWikiServices $services ) : CryptHKDF {
 145                 $config = $services->getMainConfig();
 146
 147                 $secret = $config->get( 'HKDFSecret' ) ?: $config->get( 'SecretKey' );
 148                 if ( !$secret ) {
 149                         throw new RuntimeException( "Cannot use MWCryptHKDF without a secret." );
 150                 }
 151
 152                 // In HKDF, the context can be known to the attacker, but this will
 153                 // keep simultaneous runs from producing the same output.
 154                 $context = [ microtime(), getmypid(), gethostname() ];
 155
 156                 // Setup salt cache. Use APC, or fallback to the main cache if it isn't setup
 157                 $cache = $services->getLocalServerObjectCache();
 158                 if ( $cache instanceof EmptyBagOStuff ) {
 159                         $cache = ObjectCache::getLocalClusterInstance();
 160                 }
 161
 162                 return new CryptHKDF( $secret, $config->get( 'HKDFAlgorithm' ), $cache, $context );
 163         },
 164
 165         'DateFormatterFactory' => function () : DateFormatterFactory {
 166                 return new DateFormatterFactory;
 167         },
 168
 169         'DBLoadBalancer' => function ( MediaWikiServices $services ) : Wikimedia\Rdbms\ILoadBalancer {
 170                 // just return the default LB from the DBLoadBalancerFactory service
 171                 return $services->getDBLoadBalancerFactory()->getMainLB();
 172         },
 173
 174         'DBLoadBalancerFactory' =>
 175         function ( MediaWikiServices $services ) : Wikimedia\Rdbms\LBFactory {
 176                 $mainConfig = $services->getMainConfig();
 177
 178                 $lbConf = MWLBFactory::applyDefaultConfig(
 179                         $mainConfig->get( 'LBFactoryConf' ),
 180                         new ServiceOptions( MWLBFactory::$applyDefaultConfigOptions, $mainConfig ),
 181                         $services->getConfiguredReadOnlyMode(),
 182                         $services->getLocalServerObjectCache(),
 183                         $services->getMainObjectStash(),
 184                         $services->getMainWANObjectCache()
 185                 );
 186                 $class = MWLBFactory::getLBFactoryClass( $lbConf );
 187
 188                 $instance = new $class( $lbConf );
 189                 MWLBFactory::setSchemaAliases( $instance, $mainConfig->get( 'DBtype' ) );
 190
 191                 return $instance;
 192         },
 193
 194         'EventRelayerGroup' => function ( MediaWikiServices $services ) : EventRelayerGroup {
 195                 return new EventRelayerGroup( $services->getMainConfig()->get( 'EventRelayerConfig' ) );
 196         },
 197
 198         'ExternalStoreAccess' => function ( MediaWikiServices $services ) : ExternalStoreAccess {
 199                 return new ExternalStoreAccess(
 200                         $services->getExternalStoreFactory(),
 201                         LoggerFactory::getInstance( 'ExternalStore' )
 202                 );
 203         },
 204
 205         'ExternalStoreFactory' => function ( MediaWikiServices $services ) : ExternalStoreFactory {
 206                 $config = $services->getMainConfig();
 207                 $writeStores = $config->get( 'DefaultExternalStore' );
 208
 209                 return new ExternalStoreFactory(
 210                         $config->get( 'ExternalStores' ),
 211                         ( $writeStores !== false ) ? (array)$writeStores : [],
 212                         $services->getDBLoadBalancer()->getLocalDomainID(),
 213                         LoggerFactory::getInstance( 'ExternalStore' )
 214                 );
 215         },
 216
 217         'GenderCache' => function ( MediaWikiServices $services ) : GenderCache {
 218                 $nsInfo = $services->getNamespaceInfo();
 219                 // Database layer may be disabled, so processing without database connection
 220                 $dbLoadBalancer = $services->isServiceDisabled( 'DBLoadBalancer' )
 221                         ? null
 222                         : $services->getDBLoadBalancer();
 223                 return new GenderCache( $nsInfo, $dbLoadBalancer );
 224         },
 225
 226         'HttpRequestFactory' =>
 227         function ( MediaWikiServices $services ) : HttpRequestFactory {
 228                 return new HttpRequestFactory();
 229         },
 230
 231         'InterwikiLookup' => function ( MediaWikiServices $services ) : InterwikiLookup {
 232                 $config = $services->getMainConfig();
 233                 return new ClassicInterwikiLookup(
 234                         $services->getContentLanguage(),
 235                         $services->getMainWANObjectCache(),
 236                         $config->get( 'InterwikiExpiry' ),
 237                         $config->get( 'InterwikiCache' ),
 238                         $config->get( 'InterwikiScopes' ),
 239                         $config->get( 'InterwikiFallbackSite' )
 240                 );
 241         },
 242
 243         'LinkCache' => function ( MediaWikiServices $services ) : LinkCache {
 244                 return new LinkCache(
 245                         $services->getTitleFormatter(),
 246                         $services->getMainWANObjectCache(),
 247                         $services->getNamespaceInfo()
 248                 );
 249         },
 250
 251         'LinkRenderer' => function ( MediaWikiServices $services ) : LinkRenderer {
 252                 if ( defined( 'MW_NO_SESSION' ) ) {
 253                         return $services->getLinkRendererFactory()->create();
 254                 } else {
 255                         return $services->getLinkRendererFactory()->createForUser(
 256                                 RequestContext::getMain()->getUser()
 257                         );
 258                 }
 259         },
 260
 261         'LinkRendererFactory' => function ( MediaWikiServices $services ) : LinkRendererFactory {
 262                 return new LinkRendererFactory(
 263                         $services->getTitleFormatter(),
 264                         $services->getLinkCache(),
 265                         $services->getNamespaceInfo()
 266                 );
 267         },
 268
 269         'LocalServerObjectCache' => function ( MediaWikiServices $services ) : BagOStuff {
 270                 $cacheId = \ObjectCache::detectLocalServerCache();
 271
 272                 return \ObjectCache::newFromId( $cacheId );
 273         },
 274
 275         'MagicWordFactory' => function ( MediaWikiServices $services ) : MagicWordFactory {
 276                 return new MagicWordFactory( $services->getContentLanguage() );
 277         },
 278
 279         'MainConfig' => function ( MediaWikiServices $services ) : Config {
 280                 // Use the 'main' config from the ConfigFactory service.
 281                 return $services->getConfigFactory()->makeConfig( 'main' );
 282         },
 283
 284         'MainObjectStash' => function ( MediaWikiServices $services ) : BagOStuff {
 285                 $mainConfig = $services->getMainConfig();
 286
 287                 $id = $mainConfig->get( 'MainStash' );
 288                 if ( !isset( $mainConfig->get( 'ObjectCaches' )[$id] ) ) {
 289                         throw new UnexpectedValueException(
 290                                 "Cache type \"$id\" is not present in \$wgObjectCaches." );
 291                 }
 292
 293                 return \ObjectCache::newFromParams( $mainConfig->get( 'ObjectCaches' )[$id] );
 294         },
 295
 296         'MainWANObjectCache' => function ( MediaWikiServices $services ) : WANObjectCache {
 297                 $mainConfig = $services->getMainConfig();
 298
 299                 $id = $mainConfig->get( 'MainWANCache' );
 300                 if ( !isset( $mainConfig->get( 'WANObjectCaches' )[$id] ) ) {
 301                         throw new UnexpectedValueException(
 302                                 "WAN cache type \"$id\" is not present in \$wgWANObjectCaches." );
 303                 }
 304
 305                 $params = $mainConfig->get( 'WANObjectCaches' )[$id];
 306                 $objectCacheId = $params['cacheId'];
 307                 if ( !isset( $mainConfig->get( 'ObjectCaches' )[$objectCacheId] ) ) {
 308                         throw new UnexpectedValueException(
 309                                 "Cache type \"$objectCacheId\" is not present in \$wgObjectCaches." );
 310                 }
 311                 $params['store'] = $mainConfig->get( 'ObjectCaches' )[$objectCacheId];
 312
 313                 return \ObjectCache::newWANCacheFromParams( $params );
 314         },
 315
 316         'MediaHandlerFactory' => function ( MediaWikiServices $services ) : MediaHandlerFactory {
 317                 return new MediaHandlerFactory(
 318                         $services->getMainConfig()->get( 'MediaHandlers' )
 319                 );
 320         },
 321
 322         'MimeAnalyzer' => function ( MediaWikiServices $services ) : MimeAnalyzer {
 323                 $logger = LoggerFactory::getInstance( 'Mime' );
 324                 $mainConfig = $services->getMainConfig();
 325                 $params = [
 326                         'typeFile' => $mainConfig->get( 'MimeTypeFile' ),
 327                         'infoFile' => $mainConfig->get( 'MimeInfoFile' ),
 328                         'xmlTypes' => $mainConfig->get( 'XMLMimeTypes' ),
 329                         'guessCallback' =>
 330                                 function ( $mimeAnalyzer, &$head, &$tail, $file, &$mime ) use ( $logger ) {
 331                                         // Also test DjVu
 332                                         $deja = new DjVuImage( $file );
 333                                         if ( $deja->isValid() ) {
 334                                                 $logger->info( "Detected $file as image/vnd.djvu\n" );
 335                                                 $mime = 'image/vnd.djvu';
 336
 337                                                 return;
 338                                         }
 339                                         // Some strings by reference for performance - assuming well-behaved hooks
 340                                         Hooks::run(
 341                                                 'MimeMagicGuessFromContent',
 342                                                 [ $mimeAnalyzer, &$head, &$tail, $file, &$mime ]
 343                                         );
 344                                 },
 345                         'extCallback' => function ( $mimeAnalyzer, $ext, &$mime ) {
 346                                 // Media handling extensions can improve the MIME detected
 347                                 Hooks::run( 'MimeMagicImproveFromExtension', [ $mimeAnalyzer, $ext, &$mime ] );
 348                         },
 349                         'initCallback' => function ( $mimeAnalyzer ) {
 350                                 // Allow media handling extensions adding MIME-types and MIME-info
 351                                 Hooks::run( 'MimeMagicInit', [ $mimeAnalyzer ] );
 352                         },
 353                         'logger' => $logger
 354                 ];
 355
 356                 if ( $params['infoFile'] === 'includes/mime.info' ) {
 357                         $params['infoFile'] = __DIR__ . "/libs/mime/mime.info";
 358                 }
 359
 360                 if ( $params['typeFile'] === 'includes/mime.types' ) {
 361                         $params['typeFile'] = __DIR__ . "/libs/mime/mime.types";
 362                 }
 363
 364                 $detectorCmd = $mainConfig->get( 'MimeDetectorCommand' );
 365                 if ( $detectorCmd ) {
 366                         $factory = $services->getShellCommandFactory();
 367                         $params['detectCallback'] = function ( $file ) use ( $detectorCmd, $factory ) {
 368                                 $result = $factory->create()
 369                                         // $wgMimeDetectorCommand can contain commands with parameters
 370                                         ->unsafeParams( $detectorCmd )
 371                                         ->params( $file )
 372                                         ->execute();
 373                                 return $result->getStdout();
 374                         };
 375                 }
 376
 377                 return new MimeAnalyzer( $params );
 378         },
 379
 380         'NamespaceInfo' => function ( MediaWikiServices $services ) : NamespaceInfo {
 381                 return new NamespaceInfo( new ServiceOptions( NamespaceInfo::$constructorOptions,
 382                         $services->getMainConfig() ) );
 383         },
 384
 385         'NameTableStoreFactory' => function ( MediaWikiServices $services ) : NameTableStoreFactory {
 386                 return new NameTableStoreFactory(
 387                         $services->getDBLoadBalancerFactory(),
 388                         $services->getMainWANObjectCache(),
 389                         LoggerFactory::getInstance( 'NameTableSqlStore' )
 390                 );
 391         },
 392
 393         'OldRevisionImporter' => function ( MediaWikiServices $services ) : OldRevisionImporter {
 394                 return new ImportableOldRevisionImporter(
 395                         true,
 396                         LoggerFactory::getInstance( 'OldRevisionImporter' ),
 397                         $services->getDBLoadBalancer()
 398                 );
 399         },
 400
 401         'PageEditStash' => function ( MediaWikiServices $services ) : PageEditStash {
 402                 $config = $services->getMainConfig();
 403
 404                 return new PageEditStash(
 405                         ObjectCache::getLocalClusterInstance(),
 406                         $services->getDBLoadBalancer(),
 407                         LoggerFactory::getInstance( 'StashEdit' ),
 408                         $services->getStatsdDataFactory(),
 409                         defined( 'MEDIAWIKI_JOB_RUNNER' ) || $config->get( 'CommandLineMode' )
 410                                 ? PageEditStash::INITIATOR_JOB_OR_CLI
 411                                 : PageEditStash::INITIATOR_USER
 412                 );
 413         },
 414
 415         'Parser' => function ( MediaWikiServices $services ) : Parser {
 416                 return $services->getParserFactory()->create();
 417         },
 418
 419         'ParserCache' => function ( MediaWikiServices $services ) : ParserCache {
 420                 $config = $services->getMainConfig();
 421                 $cache = ObjectCache::getInstance( $config->get( 'ParserCacheType' ) );
 422                 wfDebugLog( 'caches', 'parser: ' . get_class( $cache ) );
 423
 424                 return new ParserCache(
 425                         $cache,
 426                         $config->get( 'CacheEpoch' )
 427                 );
 428         },
 429
 430         'ParserFactory' => function ( MediaWikiServices $services ) : ParserFactory {
 431                 $options = new ServiceOptions( Parser::$constructorOptions,
 432                         // 'class' and 'preprocessorClass'
 433                         $services->getMainConfig()->get( 'ParserConf' ),
 434                         // Make sure to have defaults in case someone overrode ParserConf with something silly
 435                         [ 'class' => Parser::class,
 436                                 'preprocessorClass' => Parser::getDefaultPreprocessorClass() ],
 437                         // Plus a buch of actual config options
 438                         $services->getMainConfig()
 439                 );
 440
 441                 return new ParserFactory(
 442                         $options,
 443                         $services->getMagicWordFactory(),
 444                         $services->getContentLanguage(),
 445                         wfUrlProtocols(),
 446                         $services->getSpecialPageFactory(),
 447                         $services->getLinkRendererFactory(),
 448                         $services->getNamespaceInfo(),
 449                         LoggerFactory::getInstance( 'Parser' )
 450                 );
 451         },
 452
 453         'PasswordFactory' => function ( MediaWikiServices $services ) : PasswordFactory {
 454                 $config = $services->getMainConfig();
 455                 return new PasswordFactory(
 456                         $config->get( 'PasswordConfig' ),
 457                         $config->get( 'PasswordDefault' )
 458                 );
 459         },
 460
 461         'PerDbNameStatsdDataFactory' =>
 462         function ( MediaWikiServices $services ) : StatsdDataFactoryInterface {
 463                 $config = $services->getMainConfig();
 464                 $wiki = $config->get( 'DBname' );
 465                 return new PrefixingStatsdDataFactoryProxy(
 466                         $services->getStatsdDataFactory(),
 467                         $wiki
 468                 );
 469         },
 470
 471         'PermissionManager' => function ( MediaWikiServices $services ) : PermissionManager {
 472                 $config = $services->getMainConfig();
 473                 return new PermissionManager(
 474                         $services->getSpecialPageFactory(),
 475                         $services->getRevisionLookup(),
 476                         $config->get( 'WhitelistRead' ),
 477                         $config->get( 'WhitelistReadRegexp' ),
 478                         $config->get( 'EmailConfirmToEdit' ),
 479                         $config->get( 'BlockDisablesLogin' ),
 480                         $config->get( 'GroupPermissions' ),
 481                         $config->get( 'RevokePermissions' ),
 482                         $config->get( 'AvailableRights' ),
 483                         $services->getNamespaceInfo()
 484                 );
 485         },
 486
 487         'PreferencesFactory' => function ( MediaWikiServices $services ) : PreferencesFactory {
 488                 $factory = new DefaultPreferencesFactory(
 489                         new ServiceOptions(
 490                                 DefaultPreferencesFactory::$constructorOptions, $services->getMainConfig() ),
 491                         $services->getContentLanguage(),
 492                         AuthManager::singleton(),
 493                         $services->getLinkRendererFactory()->create(),
 494                         $services->getNamespaceInfo()
 495                 );
 496                 $factory->setLogger( LoggerFactory::getInstance( 'preferences' ) );
 497
 498                 return $factory;
 499         },
 500
 501         'ProxyLookup' => function ( MediaWikiServices $services ) : ProxyLookup {
 502                 $mainConfig = $services->getMainConfig();
 503                 return new ProxyLookup(
 504                         $mainConfig->get( 'CdnServers' ),
 505                         $mainConfig->get( 'CdnServersNoPurge' )
 506                 );
 507         },
 508
 509         'ReadOnlyMode' => function ( MediaWikiServices $services ) : ReadOnlyMode {
 510                 return new ReadOnlyMode(
 511                         $services->getConfiguredReadOnlyMode(),
 512                         $services->getDBLoadBalancer()
 513                 );
 514         },
 515
 516         'RepoGroup' => function ( MediaWikiServices $services ) : RepoGroup {
 517                 $config = $services->getMainConfig();
 518                 return new RepoGroup(
 519                         $config->get( 'LocalFileRepo' ),
 520                         $config->get( 'ForeignFileRepos' ),
 521                         $services->getMainWANObjectCache()
 522                 );
 523         },
 524
 525         'ResourceLoader' => function ( MediaWikiServices $services ) : ResourceLoader {
 526                 // @todo This should not take a Config object, but it's not so easy to remove because it
 527                 // exposes it in a getter, which is actually used.
 528                 global $IP;
 529                 $config = $services->getMainConfig();
 530
 531                 $rl = new ResourceLoader(
 532                         $config,
 533                         LoggerFactory::getInstance( 'resourceloader' )
 534                 );
 535
 536                 $rl->addSource( $config->get( 'ResourceLoaderSources' ) );
 537
 538                 // Core modules, then extension/skin modules
 539                 $rl->register( include "$IP/resources/Resources.php" );
 540                 $rl->register( $config->get( 'ResourceModules' ) );
 541                 Hooks::run( 'ResourceLoaderRegisterModules', [ &$rl ] );
 542
 543                 if ( $config->get( 'EnableJavaScriptTest' ) === true ) {
 544                         $rl->registerTestModules();
 545                 }
 546
 547                 return $rl;
 548         },
 549
 550         'RevisionFactory' => function ( MediaWikiServices $services ) : RevisionFactory {
 551                 return $services->getRevisionStore();
 552         },
 553
 554         'RevisionLookup' => function ( MediaWikiServices $services ) : RevisionLookup {
 555                 return $services->getRevisionStore();
 556         },
 557
 558         'RevisionRenderer' => function ( MediaWikiServices $services ) : RevisionRenderer {
 559                 $renderer = new RevisionRenderer(
 560                         $services->getDBLoadBalancer(),
 561                         $services->getSlotRoleRegistry()
 562                 );
 563
 564                 $renderer->setLogger( LoggerFactory::getInstance( 'SaveParse' ) );
 565                 return $renderer;
 566         },
 567
 568         'RevisionStore' => function ( MediaWikiServices $services ) : RevisionStore {
 569                 return $services->getRevisionStoreFactory()->getRevisionStore();
 570         },
 571
 572         'RevisionStoreFactory' => function ( MediaWikiServices $services ) : RevisionStoreFactory {
 573                 $config = $services->getMainConfig();
 574                 $store = new RevisionStoreFactory(
 575                         $services->getDBLoadBalancerFactory(),
 576                         $services->getBlobStoreFactory(),
 577                         $services->getNameTableStoreFactory(),
 578                         $services->getSlotRoleRegistry(),
 579                         $services->getMainWANObjectCache(),
 580                         $services->getCommentStore(),
 581                         $services->getActorMigration(),
 582                         $config->get( 'MultiContentRevisionSchemaMigrationStage' ),
 583                         LoggerFactory::getProvider(),
 584                         $config->get( 'ContentHandlerUseDB' )
 585                 );
 586
 587                 return $store;
 588         },
 589
 590         'SearchEngineConfig' => function ( MediaWikiServices $services ) : SearchEngineConfig {
 591                 // @todo This should not take a Config object, but it's not so easy to remove because it
 592                 // exposes it in a getter, which is actually used.
 593                 return new SearchEngineConfig( $services->getMainConfig(),
 594                         $services->getContentLanguage() );
 595         },
 596
 597         'SearchEngineFactory' => function ( MediaWikiServices $services ) : SearchEngineFactory {
 598                 return new SearchEngineFactory( $services->getSearchEngineConfig() );
 599         },
 600
 601         'ShellCommandFactory' => function ( MediaWikiServices $services ) : CommandFactory {
 602                 $config = $services->getMainConfig();
 603
 604                 $limits = [
 605                         'time' => $config->get( 'MaxShellTime' ),
 606                         'walltime' => $config->get( 'MaxShellWallClockTime' ),
 607                         'memory' => $config->get( 'MaxShellMemory' ),
 608                         'filesize' => $config->get( 'MaxShellFileSize' ),
 609                 ];
 610                 $cgroup = $config->get( 'ShellCgroup' );
 611                 $restrictionMethod = $config->get( 'ShellRestrictionMethod' );
 612
 613                 $factory = new CommandFactory( $limits, $cgroup, $restrictionMethod );
 614                 $factory->setLogger( LoggerFactory::getInstance( 'exec' ) );
 615                 $factory->logStderr();
 616
 617                 return $factory;
 618         },
 619
 620         'SiteLookup' => function ( MediaWikiServices $services ) : SiteLookup {
 621                 // Use SiteStore as the SiteLookup as well. This was originally separated
 622                 // to allow for a cacheable read-only interface (using FileBasedSiteLookup),
 623                 // but this was never used. SiteStore has caching (see below).
 624                 return $services->getSiteStore();
 625         },
 626
 627         'SiteStore' => function ( MediaWikiServices $services ) : SiteStore {
 628                 $rawSiteStore = new DBSiteStore( $services->getDBLoadBalancer() );
 629
 630                 $cache = $services->getLocalServerObjectCache();
 631                 if ( $cache instanceof EmptyBagOStuff ) {
 632                         $cache = ObjectCache::getLocalClusterInstance();
 633                 }
 634
 635                 return new CachingSiteStore( $rawSiteStore, $cache );
 636         },
 637
 638         'SkinFactory' => function ( MediaWikiServices $services ) : SkinFactory {
 639                 $factory = new SkinFactory();
 640
 641                 $names = $services->getMainConfig()->get( 'ValidSkinNames' );
 642
 643                 foreach ( $names as $name => $skin ) {
 644                         $factory->register( $name, $skin, function () use ( $name, $skin ) {
 645                                 $class = "Skin$skin";
 646                                 return new $class( $name );
 647                         } );
 648                 }
 649                 // Register a hidden "fallback" skin
 650                 $factory->register( 'fallback', 'Fallback', function () {
 651                         return new SkinFallback;
 652                 } );
 653                 // Register a hidden skin for api output
 654                 $factory->register( 'apioutput', 'ApiOutput', function () {
 655                         return new SkinApi;
 656                 } );
 657
 658                 return $factory;
 659         },
 660
 661         'SlotRoleRegistry' => function ( MediaWikiServices $services ) : SlotRoleRegistry {
 662                 $config = $services->getMainConfig();
 663
 664                 $registry = new SlotRoleRegistry(
 665                         $services->getNameTableStoreFactory()->getSlotRoles()
 666                 );
 667
 668                 $registry->defineRole( 'main', function () use ( $config ) {
 669                         return new MainSlotRoleHandler(
 670                                 $config->get( 'NamespaceContentModels' )
 671                         );
 672                 } );
 673
 674                 return $registry;
 675         },
 676
 677         'SpecialPageFactory' => function ( MediaWikiServices $services ) : SpecialPageFactory {
 678                 return new SpecialPageFactory(
 679                         new ServiceOptions(
 680                                 SpecialPageFactory::$constructorOptions, $services->getMainConfig() ),
 681                         $services->getContentLanguage()
 682                 );
 683         },
 684
 685         'StatsdDataFactory' => function ( MediaWikiServices $services ) : IBufferingStatsdDataFactory {
 686                 return new BufferingStatsdDataFactory(
 687                         rtrim( $services->getMainConfig()->get( 'StatsdMetricPrefix' ), '.' )
 688                 );
 689         },
 690
 691         'TitleFormatter' => function ( MediaWikiServices $services ) : TitleFormatter {
 692                 return $services->getService( '_MediaWikiTitleCodec' );
 693         },
 694
 695         'TitleParser' => function ( MediaWikiServices $services ) : TitleParser {
 696                 return $services->getService( '_MediaWikiTitleCodec' );
 697         },
 698
 699         'UploadRevisionImporter' => function ( MediaWikiServices $services ) : UploadRevisionImporter {
 700                 return new ImportableUploadRevisionImporter(
 701                         $services->getMainConfig()->get( 'EnableUploads' ),
 702                         LoggerFactory::getInstance( 'UploadRevisionImporter' )
 703                 );
 704         },
 705
 706         'VirtualRESTServiceClient' =>
 707         function ( MediaWikiServices $services ) : VirtualRESTServiceClient {
 708                 $config = $services->getMainConfig()->get( 'VirtualRestConfig' );
 709
 710                 $vrsClient = new VirtualRESTServiceClient( new MultiHttpClient( [] ) );
 711                 foreach ( $config['paths'] as $prefix => $serviceConfig ) {
 712                         $class = $serviceConfig['class'];
 713                         // Merge in the global defaults
 714                         $constructArg = $serviceConfig['options'] ?? [];
 715                         $constructArg += $config['global'];
 716                         // Make the VRS service available at the mount point
 717                         $vrsClient->mount( $prefix, [ 'class' => $class, 'config' => $constructArg ] );
 718                 }
 719
 720                 return $vrsClient;
 721         },
 722
 723         'WatchedItemQueryService' =>
 724         function ( MediaWikiServices $services ) : WatchedItemQueryService {
 725                 return new WatchedItemQueryService(
 726                         $services->getDBLoadBalancer(),
 727                         $services->getCommentStore(),
 728                         $services->getActorMigration(),
 729                         $services->getWatchedItemStore()
 730                 );
 731         },
 732
 733         'WatchedItemStore' => function ( MediaWikiServices $services ) : WatchedItemStore {
 734                 $store = new WatchedItemStore(
 735                         $services->getDBLoadBalancerFactory(),
 736                         JobQueueGroup::singleton(),
 737                         $services->getMainObjectStash(),
 738                         new HashBagOStuff( [ 'maxKeys' => 100 ] ),
 739                         $services->getReadOnlyMode(),
 740                         $services->getMainConfig()->get( 'UpdateRowsPerQuery' ),
 741                         $services->getNamespaceInfo(),
 742                         $services->getRevisionLookup()
 743                 );
 744                 $store->setStatsdDataFactory( $services->getStatsdDataFactory() );
 745
 746                 if ( $services->getMainConfig()->get( 'ReadOnlyWatchedItemStore' ) ) {
 747                         $store = new NoWriteWatchedItemStore( $store );
 748                 }
 749
 750                 return $store;
 751         },
 752
 753         'WikiRevisionOldRevisionImporterNoUpdates' =>
 754         function ( MediaWikiServices $services ) : ImportableOldRevisionImporter {
 755                 return new ImportableOldRevisionImporter(
 756                         false,
 757                         LoggerFactory::getInstance( 'OldRevisionImporter' ),
 758                         $services->getDBLoadBalancer()
 759                 );
 760         },
 761
 762         '_MediaWikiTitleCodec' => function ( MediaWikiServices $services ) : MediaWikiTitleCodec {
 763                 return new MediaWikiTitleCodec(
 764                         $services->getContentLanguage(),
 765                         $services->getGenderCache(),
 766                         $services->getMainConfig()->get( 'LocalInterwikis' ),
 767                         $services->getInterwikiLookup(),
 768                         $services->getNamespaceInfo()
 769                 );
 770         },
 771
 772         '_SqlBlobStore' => function ( MediaWikiServices $services ) : SqlBlobStore {
 773                 return $services->getBlobStoreFactory()->newSqlBlobStore();
 774         },
 775
 776         ///////////////////////////////////////////////////////////////////////////
 777         // NOTE: When adding a service here, don't forget to add a getter function
 778         // in the MediaWikiServices class. The convenience getter should just call
 779         // $this->getService( 'FooBarService' ).
 780         ///////////////////////////////////////////////////////////////////////////
 781
 782 ];