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