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                         $services->getPermissionManager()
 102                 );
 103         },
 104
 105         'BlockRestrictionStore' => function ( MediaWikiServices $services ) : BlockRestrictionStore {
 106                 return new BlockRestrictionStore(
 107                         $services->getDBLoadBalancer()
 108                 );
 109         },
 110
 111         'CommentStore' => function ( MediaWikiServices $services ) : CommentStore {
 112                 return new CommentStore(
 113                         $services->getContentLanguage(),
 114                         MIGRATION_NEW
 115                 );
 116         },
 117
 118         'ConfigFactory' => function ( MediaWikiServices $services ) : ConfigFactory {
 119                 // Use the bootstrap config to initialize the ConfigFactory.
 120                 $registry = $services->getBootstrapConfig()->get( 'ConfigRegistry' );
 121                 $factory = new ConfigFactory();
 122
 123                 foreach ( $registry as $name => $callback ) {
 124                         $factory->register( $name, $callback );
 125                 }
 126                 return $factory;
 127         },
 128
 129         'ConfigRepository' => function ( MediaWikiServices $services ) : ConfigRepository {
 130                 return new ConfigRepository( $services->getConfigFactory() );
 131         },
 132
 133         'ConfiguredReadOnlyMode' => function ( MediaWikiServices $services ) : ConfiguredReadOnlyMode {
 134                 $config = $services->getMainConfig();
 135                 return new ConfiguredReadOnlyMode(
 136                         $config->get( 'ReadOnly' ),
 137                         $config->get( 'ReadOnlyFile' )
 138                 );
 139         },
 140
 141         'ContentLanguage' => function ( MediaWikiServices $services ) : Language {
 142                 return Language::factory( $services->getMainConfig()->get( 'LanguageCode' ) );
 143         },
 144
 145         'CryptHKDF' => function ( MediaWikiServices $services ) : CryptHKDF {
 146                 $config = $services->getMainConfig();
 147
 148                 $secret = $config->get( 'HKDFSecret' ) ?: $config->get( 'SecretKey' );
 149                 if ( !$secret ) {
 150                         throw new RuntimeException( "Cannot use MWCryptHKDF without a secret." );
 151                 }
 152
 153                 // In HKDF, the context can be known to the attacker, but this will
 154                 // keep simultaneous runs from producing the same output.
 155                 $context = [ microtime(), getmypid(), gethostname() ];
 156
 157                 // Setup salt cache. Use APC, or fallback to the main cache if it isn't setup
 158                 $cache = $services->getLocalServerObjectCache();
 159                 if ( $cache instanceof EmptyBagOStuff ) {
 160                         $cache = ObjectCache::getLocalClusterInstance();
 161                 }
 162
 163                 return new CryptHKDF( $secret, $config->get( 'HKDFAlgorithm' ), $cache, $context );
 164         },
 165
 166         'DateFormatterFactory' => function () : DateFormatterFactory {
 167                 return new DateFormatterFactory;
 168         },
 169
 170         'DBLoadBalancer' => function ( MediaWikiServices $services ) : Wikimedia\Rdbms\ILoadBalancer {
 171                 // just return the default LB from the DBLoadBalancerFactory service
 172                 return $services->getDBLoadBalancerFactory()->getMainLB();
 173         },
 174
 175         'DBLoadBalancerFactory' =>
 176         function ( MediaWikiServices $services ) : Wikimedia\Rdbms\LBFactory {
 177                 $mainConfig = $services->getMainConfig();
 178
 179                 $lbConf = MWLBFactory::applyDefaultConfig(
 180                         $mainConfig->get( 'LBFactoryConf' ),
 181                         new ServiceOptions( MWLBFactory::$applyDefaultConfigOptions, $mainConfig ),
 182                         $services->getConfiguredReadOnlyMode(),
 183                         $services->getLocalServerObjectCache(),
 184                         $services->getMainObjectStash(),
 185                         $services->getMainWANObjectCache()
 186                 );
 187                 $class = MWLBFactory::getLBFactoryClass( $lbConf );
 188
 189                 $instance = new $class( $lbConf );
 190                 MWLBFactory::setSchemaAliases( $instance, $mainConfig->get( 'DBtype' ) );
 191
 192                 return $instance;
 193         },
 194
 195         'EventRelayerGroup' => function ( MediaWikiServices $services ) : EventRelayerGroup {
 196                 return new EventRelayerGroup( $services->getMainConfig()->get( 'EventRelayerConfig' ) );
 197         },
 198
 199         'ExternalStoreAccess' => function ( MediaWikiServices $services ) : ExternalStoreAccess {
 200                 return new ExternalStoreAccess(
 201                         $services->getExternalStoreFactory(),
 202                         LoggerFactory::getInstance( 'ExternalStore' )
 203                 );
 204         },
 205
 206         'ExternalStoreFactory' => function ( MediaWikiServices $services ) : ExternalStoreFactory {
 207                 $config = $services->getMainConfig();
 208                 $writeStores = $config->get( 'DefaultExternalStore' );
 209
 210                 return new ExternalStoreFactory(
 211                         $config->get( 'ExternalStores' ),
 212                         ( $writeStores !== false ) ? (array)$writeStores : [],
 213                         $services->getDBLoadBalancer()->getLocalDomainID(),
 214                         LoggerFactory::getInstance( 'ExternalStore' )
 215                 );
 216         },
 217
 218         'GenderCache' => function ( MediaWikiServices $services ) : GenderCache {
 219                 $nsInfo = $services->getNamespaceInfo();
 220                 // Database layer may be disabled, so processing without database connection
 221                 $dbLoadBalancer = $services->isServiceDisabled( 'DBLoadBalancer' )
 222                         ? null
 223                         : $services->getDBLoadBalancer();
 224                 return new GenderCache( $nsInfo, $dbLoadBalancer );
 225         },
 226
 227         'HttpRequestFactory' =>
 228         function ( MediaWikiServices $services ) : HttpRequestFactory {
 229                 return new HttpRequestFactory();
 230         },
 231
 232         'InterwikiLookup' => function ( MediaWikiServices $services ) : InterwikiLookup {
 233                 $config = $services->getMainConfig();
 234                 return new ClassicInterwikiLookup(
 235                         $services->getContentLanguage(),
 236                         $services->getMainWANObjectCache(),
 237                         $config->get( 'InterwikiExpiry' ),
 238                         $config->get( 'InterwikiCache' ),
 239                         $config->get( 'InterwikiScopes' ),
 240                         $config->get( 'InterwikiFallbackSite' )
 241                 );
 242         },
 243
 244         'LinkCache' => function ( MediaWikiServices $services ) : LinkCache {
 245                 return new LinkCache(
 246                         $services->getTitleFormatter(),
 247                         $services->getMainWANObjectCache(),
 248                         $services->getNamespaceInfo()
 249                 );
 250         },
 251
 252         'LinkRenderer' => function ( MediaWikiServices $services ) : LinkRenderer {
 253                 if ( defined( 'MW_NO_SESSION' ) ) {
 254                         return $services->getLinkRendererFactory()->create();
 255                 } else {
 256                         return $services->getLinkRendererFactory()->createForUser(
 257                                 RequestContext::getMain()->getUser()
 258                         );
 259                 }
 260         },
 261
 262         'LinkRendererFactory' => function ( MediaWikiServices $services ) : LinkRendererFactory {
 263                 return new LinkRendererFactory(
 264                         $services->getTitleFormatter(),
 265                         $services->getLinkCache(),
 266                         $services->getNamespaceInfo()
 267                 );
 268         },
 269
 270         'LocalServerObjectCache' => function ( MediaWikiServices $services ) : BagOStuff {
 271                 $cacheId = \ObjectCache::detectLocalServerCache();
 272
 273                 return \ObjectCache::newFromId( $cacheId );
 274         },
 275
 276         'MagicWordFactory' => function ( MediaWikiServices $services ) : MagicWordFactory {
 277                 return new MagicWordFactory( $services->getContentLanguage() );
 278         },
 279
 280         'MainConfig' => function ( MediaWikiServices $services ) : Config {
 281                 // Use the 'main' config from the ConfigFactory service.
 282                 return $services->getConfigFactory()->makeConfig( 'main' );
 283         },
 284
 285         'MainObjectStash' => function ( MediaWikiServices $services ) : BagOStuff {
 286                 $mainConfig = $services->getMainConfig();
 287
 288                 $id = $mainConfig->get( 'MainStash' );
 289                 if ( !isset( $mainConfig->get( 'ObjectCaches' )[$id] ) ) {
 290                         throw new UnexpectedValueException(
 291                                 "Cache type \"$id\" is not present in \$wgObjectCaches." );
 292                 }
 293
 294                 return \ObjectCache::newFromParams( $mainConfig->get( 'ObjectCaches' )[$id] );
 295         },
 296
 297         'MainWANObjectCache' => function ( MediaWikiServices $services ) : WANObjectCache {
 298                 $mainConfig = $services->getMainConfig();
 299
 300                 $id = $mainConfig->get( 'MainWANCache' );
 301                 if ( !isset( $mainConfig->get( 'WANObjectCaches' )[$id] ) ) {
 302                         throw new UnexpectedValueException(
 303                                 "WAN cache type \"$id\" is not present in \$wgWANObjectCaches." );
 304                 }
 305
 306                 $params = $mainConfig->get( 'WANObjectCaches' )[$id];
 307                 $objectCacheId = $params['cacheId'];
 308                 if ( !isset( $mainConfig->get( 'ObjectCaches' )[$objectCacheId] ) ) {
 309                         throw new UnexpectedValueException(
 310                                 "Cache type \"$objectCacheId\" is not present in \$wgObjectCaches." );
 311                 }
 312                 $params['store'] = $mainConfig->get( 'ObjectCaches' )[$objectCacheId];
 313
 314                 return \ObjectCache::newWANCacheFromParams( $params );
 315         },
 316
 317         'MediaHandlerFactory' => function ( MediaWikiServices $services ) : MediaHandlerFactory {
 318                 return new MediaHandlerFactory(
 319                         $services->getMainConfig()->get( 'MediaHandlers' )
 320                 );
 321         },
 322
 323         'MimeAnalyzer' => function ( MediaWikiServices $services ) : MimeAnalyzer {
 324                 $logger = LoggerFactory::getInstance( 'Mime' );
 325                 $mainConfig = $services->getMainConfig();
 326                 $params = [
 327                         'typeFile' => $mainConfig->get( 'MimeTypeFile' ),
 328                         'infoFile' => $mainConfig->get( 'MimeInfoFile' ),
 329                         'xmlTypes' => $mainConfig->get( 'XMLMimeTypes' ),
 330                         'guessCallback' =>
 331                                 function ( $mimeAnalyzer, &$head, &$tail, $file, &$mime ) use ( $logger ) {
 332                                         // Also test DjVu
 333                                         $deja = new DjVuImage( $file );
 334                                         if ( $deja->isValid() ) {
 335                                                 $logger->info( "Detected $file as image/vnd.djvu\n" );
 336                                                 $mime = 'image/vnd.djvu';
 337
 338                                                 return;
 339                                         }
 340                                         // Some strings by reference for performance - assuming well-behaved hooks
 341                                         Hooks::run(
 342                                                 'MimeMagicGuessFromContent',
 343                                                 [ $mimeAnalyzer, &$head, &$tail, $file, &$mime ]
 344                                         );
 345                                 },
 346                         'extCallback' => function ( $mimeAnalyzer, $ext, &$mime ) {
 347                                 // Media handling extensions can improve the MIME detected
 348                                 Hooks::run( 'MimeMagicImproveFromExtension', [ $mimeAnalyzer, $ext, &$mime ] );
 349                         },
 350                         'initCallback' => function ( $mimeAnalyzer ) {
 351                                 // Allow media handling extensions adding MIME-types and MIME-info
 352                                 Hooks::run( 'MimeMagicInit', [ $mimeAnalyzer ] );
 353                         },
 354                         'logger' => $logger
 355                 ];
 356
 357                 if ( $params['infoFile'] === 'includes/mime.info' ) {
 358                         $params['infoFile'] = __DIR__ . "/libs/mime/mime.info";
 359                 }
 360
 361                 if ( $params['typeFile'] === 'includes/mime.types' ) {
 362                         $params['typeFile'] = __DIR__ . "/libs/mime/mime.types";
 363                 }
 364
 365                 $detectorCmd = $mainConfig->get( 'MimeDetectorCommand' );
 366                 if ( $detectorCmd ) {
 367                         $factory = $services->getShellCommandFactory();
 368                         $params['detectCallback'] = function ( $file ) use ( $detectorCmd, $factory ) {
 369                                 $result = $factory->create()
 370                                         // $wgMimeDetectorCommand can contain commands with parameters
 371                                         ->unsafeParams( $detectorCmd )
 372                                         ->params( $file )
 373                                         ->execute();
 374                                 return $result->getStdout();
 375                         };
 376                 }
 377
 378                 return new MimeAnalyzer( $params );
 379         },
 380
 381         'NamespaceInfo' => function ( MediaWikiServices $services ) : NamespaceInfo {
 382                 return new NamespaceInfo( new ServiceOptions( NamespaceInfo::$constructorOptions,
 383                         $services->getMainConfig() ) );
 384         },
 385
 386         'NameTableStoreFactory' => function ( MediaWikiServices $services ) : NameTableStoreFactory {
 387                 return new NameTableStoreFactory(
 388                         $services->getDBLoadBalancerFactory(),
 389                         $services->getMainWANObjectCache(),
 390                         LoggerFactory::getInstance( 'NameTableSqlStore' )
 391                 );
 392         },
 393
 394         'OldRevisionImporter' => function ( MediaWikiServices $services ) : OldRevisionImporter {
 395                 return new ImportableOldRevisionImporter(
 396                         true,
 397                         LoggerFactory::getInstance( 'OldRevisionImporter' ),
 398                         $services->getDBLoadBalancer()
 399                 );
 400         },
 401
 402         'PageEditStash' => function ( MediaWikiServices $services ) : PageEditStash {
 403                 $config = $services->getMainConfig();
 404
 405                 return new PageEditStash(
 406                         ObjectCache::getLocalClusterInstance(),
 407                         $services->getDBLoadBalancer(),
 408                         LoggerFactory::getInstance( 'StashEdit' ),
 409                         $services->getStatsdDataFactory(),
 410                         defined( 'MEDIAWIKI_JOB_RUNNER' ) || $config->get( 'CommandLineMode' )
 411                                 ? PageEditStash::INITIATOR_JOB_OR_CLI
 412                                 : PageEditStash::INITIATOR_USER
 413                 );
 414         },
 415
 416         'Parser' => function ( MediaWikiServices $services ) : Parser {
 417                 return $services->getParserFactory()->create();
 418         },
 419
 420         'ParserCache' => function ( MediaWikiServices $services ) : ParserCache {
 421                 $config = $services->getMainConfig();
 422                 $cache = ObjectCache::getInstance( $config->get( 'ParserCacheType' ) );
 423                 wfDebugLog( 'caches', 'parser: ' . get_class( $cache ) );
 424
 425                 return new ParserCache(
 426                         $cache,
 427                         $config->get( 'CacheEpoch' )
 428                 );
 429         },
 430
 431         'ParserFactory' => function ( MediaWikiServices $services ) : ParserFactory {
 432                 $options = new ServiceOptions( Parser::$constructorOptions,
 433                         // 'class' and 'preprocessorClass'
 434                         $services->getMainConfig()->get( 'ParserConf' ),
 435                         // Make sure to have defaults in case someone overrode ParserConf with something silly
 436                         [ 'class' => Parser::class,
 437                                 'preprocessorClass' => Parser::getDefaultPreprocessorClass() ],
 438                         // Plus a buch of actual config options
 439                         $services->getMainConfig()
 440                 );
 441
 442                 return new ParserFactory(
 443                         $options,
 444                         $services->getMagicWordFactory(),
 445                         $services->getContentLanguage(),
 446                         wfUrlProtocols(),
 447                         $services->getSpecialPageFactory(),
 448                         $services->getLinkRendererFactory(),
 449                         $services->getNamespaceInfo(),
 450                         LoggerFactory::getInstance( 'Parser' )
 451                 );
 452         },
 453
 454         'PasswordFactory' => function ( MediaWikiServices $services ) : PasswordFactory {
 455                 $config = $services->getMainConfig();
 456                 return new PasswordFactory(
 457                         $config->get( 'PasswordConfig' ),
 458                         $config->get( 'PasswordDefault' )
 459                 );
 460         },
 461
 462         'PerDbNameStatsdDataFactory' =>
 463         function ( MediaWikiServices $services ) : StatsdDataFactoryInterface {
 464                 $config = $services->getMainConfig();
 465                 $wiki = $config->get( 'DBname' );
 466                 return new PrefixingStatsdDataFactoryProxy(
 467                         $services->getStatsdDataFactory(),
 468                         $wiki
 469                 );
 470         },
 471
 472         'PermissionManager' => function ( MediaWikiServices $services ) : PermissionManager {
 473                 $config = $services->getMainConfig();
 474                 return new PermissionManager(
 475                         $services->getSpecialPageFactory(),
 476                         $services->getRevisionLookup(),
 477                         $config->get( 'WhitelistRead' ),
 478                         $config->get( 'WhitelistReadRegexp' ),
 479                         $config->get( 'EmailConfirmToEdit' ),
 480                         $config->get( 'BlockDisablesLogin' ),
 481                         $config->get( 'GroupPermissions' ),
 482                         $config->get( 'RevokePermissions' ),
 483                         $config->get( 'AvailableRights' ),
 484                         $services->getNamespaceInfo()
 485                 );
 486         },
 487
 488         'PreferencesFactory' => function ( MediaWikiServices $services ) : PreferencesFactory {
 489                 $factory = new DefaultPreferencesFactory(
 490                         new ServiceOptions(
 491                                 DefaultPreferencesFactory::$constructorOptions, $services->getMainConfig() ),
 492                         $services->getContentLanguage(),
 493                         AuthManager::singleton(),
 494                         $services->getLinkRendererFactory()->create(),
 495                         $services->getNamespaceInfo()
 496                 );
 497                 $factory->setLogger( LoggerFactory::getInstance( 'preferences' ) );
 498
 499                 return $factory;
 500         },
 501
 502         'ProxyLookup' => function ( MediaWikiServices $services ) : ProxyLookup {
 503                 $mainConfig = $services->getMainConfig();
 504                 return new ProxyLookup(
 505                         $mainConfig->get( 'CdnServers' ),
 506                         $mainConfig->get( 'CdnServersNoPurge' )
 507                 );
 508         },
 509
 510         'ReadOnlyMode' => function ( MediaWikiServices $services ) : ReadOnlyMode {
 511                 return new ReadOnlyMode(
 512                         $services->getConfiguredReadOnlyMode(),
 513                         $services->getDBLoadBalancer()
 514                 );
 515         },
 516
 517         'RepoGroup' => function ( MediaWikiServices $services ) : RepoGroup {
 518                 $config = $services->getMainConfig();
 519                 return new RepoGroup(
 520                         $config->get( 'LocalFileRepo' ),
 521                         $config->get( 'ForeignFileRepos' ),
 522                         $services->getMainWANObjectCache()
 523                 );
 524         },
 525
 526         'ResourceLoader' => function ( MediaWikiServices $services ) : ResourceLoader {
 527                 // @todo This should not take a Config object, but it's not so easy to remove because it
 528                 // exposes it in a getter, which is actually used.
 529                 global $IP;
 530                 $config = $services->getMainConfig();
 531
 532                 $rl = new ResourceLoader(
 533                         $config,
 534                         LoggerFactory::getInstance( 'resourceloader' )
 535                 );
 536
 537                 $rl->addSource( $config->get( 'ResourceLoaderSources' ) );
 538
 539                 // Core modules, then extension/skin modules
 540                 $rl->register( include "$IP/resources/Resources.php" );
 541                 $rl->register( $config->get( 'ResourceModules' ) );
 542                 Hooks::run( 'ResourceLoaderRegisterModules', [ &$rl ] );
 543
 544                 if ( $config->get( 'EnableJavaScriptTest' ) === true ) {
 545                         $rl->registerTestModules();
 546                 }
 547
 548                 return $rl;
 549         },
 550
 551         'RevisionFactory' => function ( MediaWikiServices $services ) : RevisionFactory {
 552                 return $services->getRevisionStore();
 553         },
 554
 555         'RevisionLookup' => function ( MediaWikiServices $services ) : RevisionLookup {
 556                 return $services->getRevisionStore();
 557         },
 558
 559         'RevisionRenderer' => function ( MediaWikiServices $services ) : RevisionRenderer {
 560                 $renderer = new RevisionRenderer(
 561                         $services->getDBLoadBalancer(),
 562                         $services->getSlotRoleRegistry()
 563                 );
 564
 565                 $renderer->setLogger( LoggerFactory::getInstance( 'SaveParse' ) );
 566                 return $renderer;
 567         },
 568
 569         'RevisionStore' => function ( MediaWikiServices $services ) : RevisionStore {
 570                 return $services->getRevisionStoreFactory()->getRevisionStore();
 571         },
 572
 573         'RevisionStoreFactory' => function ( MediaWikiServices $services ) : RevisionStoreFactory {
 574                 $config = $services->getMainConfig();
 575                 $store = new RevisionStoreFactory(
 576                         $services->getDBLoadBalancerFactory(),
 577                         $services->getBlobStoreFactory(),
 578                         $services->getNameTableStoreFactory(),
 579                         $services->getSlotRoleRegistry(),
 580                         $services->getMainWANObjectCache(),
 581                         $services->getCommentStore(),
 582                         $services->getActorMigration(),
 583                         $config->get( 'MultiContentRevisionSchemaMigrationStage' ),
 584                         LoggerFactory::getProvider(),
 585                         $config->get( 'ContentHandlerUseDB' )
 586                 );
 587
 588                 return $store;
 589         },
 590
 591         'SearchEngineConfig' => function ( MediaWikiServices $services ) : SearchEngineConfig {
 592                 // @todo This should not take a Config object, but it's not so easy to remove because it
 593                 // exposes it in a getter, which is actually used.
 594                 return new SearchEngineConfig( $services->getMainConfig(),
 595                         $services->getContentLanguage() );
 596         },
 597
 598         'SearchEngineFactory' => function ( MediaWikiServices $services ) : SearchEngineFactory {
 599                 return new SearchEngineFactory( $services->getSearchEngineConfig() );
 600         },
 601
 602         'ShellCommandFactory' => function ( MediaWikiServices $services ) : CommandFactory {
 603                 $config = $services->getMainConfig();
 604
 605                 $limits = [
 606                         'time' => $config->get( 'MaxShellTime' ),
 607                         'walltime' => $config->get( 'MaxShellWallClockTime' ),
 608                         'memory' => $config->get( 'MaxShellMemory' ),
 609                         'filesize' => $config->get( 'MaxShellFileSize' ),
 610                 ];
 611                 $cgroup = $config->get( 'ShellCgroup' );
 612                 $restrictionMethod = $config->get( 'ShellRestrictionMethod' );
 613
 614                 $factory = new CommandFactory( $limits, $cgroup, $restrictionMethod );
 615                 $factory->setLogger( LoggerFactory::getInstance( 'exec' ) );
 616                 $factory->logStderr();
 617
 618                 return $factory;
 619         },
 620
 621         'SiteLookup' => function ( MediaWikiServices $services ) : SiteLookup {
 622                 // Use SiteStore as the SiteLookup as well. This was originally separated
 623                 // to allow for a cacheable read-only interface (using FileBasedSiteLookup),
 624                 // but this was never used. SiteStore has caching (see below).
 625                 return $services->getSiteStore();
 626         },
 627
 628         'SiteStore' => function ( MediaWikiServices $services ) : SiteStore {
 629                 $rawSiteStore = new DBSiteStore( $services->getDBLoadBalancer() );
 630
 631                 $cache = $services->getLocalServerObjectCache();
 632                 if ( $cache instanceof EmptyBagOStuff ) {
 633                         $cache = ObjectCache::getLocalClusterInstance();
 634                 }
 635
 636                 return new CachingSiteStore( $rawSiteStore, $cache );
 637         },
 638
 639         'SkinFactory' => function ( MediaWikiServices $services ) : SkinFactory {
 640                 $factory = new SkinFactory();
 641
 642                 $names = $services->getMainConfig()->get( 'ValidSkinNames' );
 643
 644                 foreach ( $names as $name => $skin ) {
 645                         $factory->register( $name, $skin, function () use ( $name, $skin ) {
 646                                 $class = "Skin$skin";
 647                                 return new $class( $name );
 648                         } );
 649                 }
 650                 // Register a hidden "fallback" skin
 651                 $factory->register( 'fallback', 'Fallback', function () {
 652                         return new SkinFallback;
 653                 } );
 654                 // Register a hidden skin for api output
 655                 $factory->register( 'apioutput', 'ApiOutput', function () {
 656                         return new SkinApi;
 657                 } );
 658
 659                 return $factory;
 660         },
 661
 662         'SlotRoleRegistry' => function ( MediaWikiServices $services ) : SlotRoleRegistry {
 663                 $config = $services->getMainConfig();
 664
 665                 $registry = new SlotRoleRegistry(
 666                         $services->getNameTableStoreFactory()->getSlotRoles()
 667                 );
 668
 669                 $registry->defineRole( 'main', function () use ( $config ) {
 670                         return new MainSlotRoleHandler(
 671                                 $config->get( 'NamespaceContentModels' )
 672                         );
 673                 } );
 674
 675                 return $registry;
 676         },
 677
 678         'SpecialPageFactory' => function ( MediaWikiServices $services ) : SpecialPageFactory {
 679                 return new SpecialPageFactory(
 680                         new ServiceOptions(
 681                                 SpecialPageFactory::$constructorOptions, $services->getMainConfig() ),
 682                         $services->getContentLanguage()
 683                 );
 684         },
 685
 686         'StatsdDataFactory' => function ( MediaWikiServices $services ) : IBufferingStatsdDataFactory {
 687                 return new BufferingStatsdDataFactory(
 688                         rtrim( $services->getMainConfig()->get( 'StatsdMetricPrefix' ), '.' )
 689                 );
 690         },
 691
 692         'TitleFormatter' => function ( MediaWikiServices $services ) : TitleFormatter {
 693                 return $services->getService( '_MediaWikiTitleCodec' );
 694         },
 695
 696         'TitleParser' => function ( MediaWikiServices $services ) : TitleParser {
 697                 return $services->getService( '_MediaWikiTitleCodec' );
 698         },
 699
 700         'UploadRevisionImporter' => function ( MediaWikiServices $services ) : UploadRevisionImporter {
 701                 return new ImportableUploadRevisionImporter(
 702                         $services->getMainConfig()->get( 'EnableUploads' ),
 703                         LoggerFactory::getInstance( 'UploadRevisionImporter' )
 704                 );
 705         },
 706
 707         'VirtualRESTServiceClient' =>
 708         function ( MediaWikiServices $services ) : VirtualRESTServiceClient {
 709                 $config = $services->getMainConfig()->get( 'VirtualRestConfig' );
 710
 711                 $vrsClient = new VirtualRESTServiceClient( new MultiHttpClient( [] ) );
 712                 foreach ( $config['paths'] as $prefix => $serviceConfig ) {
 713                         $class = $serviceConfig['class'];
 714                         // Merge in the global defaults
 715                         $constructArg = $serviceConfig['options'] ?? [];
 716                         $constructArg += $config['global'];
 717                         // Make the VRS service available at the mount point
 718                         $vrsClient->mount( $prefix, [ 'class' => $class, 'config' => $constructArg ] );
 719                 }
 720
 721                 return $vrsClient;
 722         },
 723
 724         'WatchedItemQueryService' =>
 725         function ( MediaWikiServices $services ) : WatchedItemQueryService {
 726                 return new WatchedItemQueryService(
 727                         $services->getDBLoadBalancer(),
 728                         $services->getCommentStore(),
 729                         $services->getActorMigration(),
 730                         $services->getWatchedItemStore()
 731                 );
 732         },
 733
 734         'WatchedItemStore' => function ( MediaWikiServices $services ) : WatchedItemStore {
 735                 $store = new WatchedItemStore(
 736                         $services->getDBLoadBalancerFactory(),
 737                         JobQueueGroup::singleton(),
 738                         $services->getMainObjectStash(),
 739                         new HashBagOStuff( [ 'maxKeys' => 100 ] ),
 740                         $services->getReadOnlyMode(),
 741                         $services->getMainConfig()->get( 'UpdateRowsPerQuery' ),
 742                         $services->getNamespaceInfo(),
 743                         $services->getRevisionLookup()
 744                 );
 745                 $store->setStatsdDataFactory( $services->getStatsdDataFactory() );
 746
 747                 if ( $services->getMainConfig()->get( 'ReadOnlyWatchedItemStore' ) ) {
 748                         $store = new NoWriteWatchedItemStore( $store );
 749                 }
 750
 751                 return $store;
 752         },
 753
 754         'WikiRevisionOldRevisionImporterNoUpdates' =>
 755         function ( MediaWikiServices $services ) : ImportableOldRevisionImporter {
 756                 return new ImportableOldRevisionImporter(
 757                         false,
 758                         LoggerFactory::getInstance( 'OldRevisionImporter' ),
 759                         $services->getDBLoadBalancer()
 760                 );
 761         },
 762
 763         '_MediaWikiTitleCodec' => function ( MediaWikiServices $services ) : MediaWikiTitleCodec {
 764                 return new MediaWikiTitleCodec(
 765                         $services->getContentLanguage(),
 766                         $services->getGenderCache(),
 767                         $services->getMainConfig()->get( 'LocalInterwikis' ),
 768                         $services->getInterwikiLookup(),
 769                         $services->getNamespaceInfo()
 770                 );
 771         },
 772
 773         '_SqlBlobStore' => function ( MediaWikiServices $services ) : SqlBlobStore {
 774                 return $services->getBlobStoreFactory()->newSqlBlobStore();
 775         },
 776
 777         ///////////////////////////////////////////////////////////////////////////
 778         // NOTE: When adding a service here, don't forget to add a getter function
 779         // in the MediaWikiServices class. The convenience getter should just call
 780         // $this->getService( 'FooBarService' ).
 781         ///////////////////////////////////////////////////////////////////////////
 782
 783 ];