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                 $config = $services->getMainConfig();
  95                 $context = RequestContext::getMain();
  96                 return new BlockManager(
  97                         new ServiceOptions(
  98                                 BlockManager::$constructorOptions, $services->getMainConfig()
  99                         ),
 100                         $context->getUser(),
 101                         $context->getRequest()
 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                 return new GenderCache( $services->getNamespaceInfo() );
 220         },
 221
 222         'HttpRequestFactory' =>
 223         function ( MediaWikiServices $services ) : HttpRequestFactory {
 224                 return new HttpRequestFactory();
 225         },
 226
 227         'InterwikiLookup' => function ( MediaWikiServices $services ) : InterwikiLookup {
 228                 $config = $services->getMainConfig();
 229                 return new ClassicInterwikiLookup(
 230                         $services->getContentLanguage(),
 231                         $services->getMainWANObjectCache(),
 232                         $config->get( 'InterwikiExpiry' ),
 233                         $config->get( 'InterwikiCache' ),
 234                         $config->get( 'InterwikiScopes' ),
 235                         $config->get( 'InterwikiFallbackSite' )
 236                 );
 237         },
 238
 239         'LinkCache' => function ( MediaWikiServices $services ) : LinkCache {
 240                 return new LinkCache(
 241                         $services->getTitleFormatter(),
 242                         $services->getMainWANObjectCache(),
 243                         $services->getNamespaceInfo()
 244                 );
 245         },
 246
 247         'LinkRenderer' => function ( MediaWikiServices $services ) : LinkRenderer {
 248                 if ( defined( 'MW_NO_SESSION' ) ) {
 249                         return $services->getLinkRendererFactory()->create();
 250                 } else {
 251                         return $services->getLinkRendererFactory()->createForUser(
 252                                 RequestContext::getMain()->getUser()
 253                         );
 254                 }
 255         },
 256
 257         'LinkRendererFactory' => function ( MediaWikiServices $services ) : LinkRendererFactory {
 258                 return new LinkRendererFactory(
 259                         $services->getTitleFormatter(),
 260                         $services->getLinkCache(),
 261                         $services->getNamespaceInfo()
 262                 );
 263         },
 264
 265         'LocalServerObjectCache' => function ( MediaWikiServices $services ) : BagOStuff {
 266                 $cacheId = \ObjectCache::detectLocalServerCache();
 267                 return \ObjectCache::newFromId( $cacheId );
 268         },
 269
 270         'MagicWordFactory' => function ( MediaWikiServices $services ) : MagicWordFactory {
 271                 return new MagicWordFactory( $services->getContentLanguage() );
 272         },
 273
 274         'MainConfig' => function ( MediaWikiServices $services ) : Config {
 275                 // Use the 'main' config from the ConfigFactory service.
 276                 return $services->getConfigFactory()->makeConfig( 'main' );
 277         },
 278
 279         'MainObjectStash' => function ( MediaWikiServices $services ) : BagOStuff {
 280                 $mainConfig = $services->getMainConfig();
 281
 282                 $id = $mainConfig->get( 'MainStash' );
 283                 if ( !isset( $mainConfig->get( 'ObjectCaches' )[$id] ) ) {
 284                         throw new UnexpectedValueException(
 285                                 "Cache type \"$id\" is not present in \$wgObjectCaches." );
 286                 }
 287
 288                 return \ObjectCache::newFromParams( $mainConfig->get( 'ObjectCaches' )[$id] );
 289         },
 290
 291         'MainWANObjectCache' => function ( MediaWikiServices $services ) : WANObjectCache {
 292                 $mainConfig = $services->getMainConfig();
 293
 294                 $id = $mainConfig->get( 'MainWANCache' );
 295                 if ( !isset( $mainConfig->get( 'WANObjectCaches' )[$id] ) ) {
 296                         throw new UnexpectedValueException(
 297                                 "WAN cache type \"$id\" is not present in \$wgWANObjectCaches." );
 298                 }
 299
 300                 $params = $mainConfig->get( 'WANObjectCaches' )[$id];
 301                 $objectCacheId = $params['cacheId'];
 302                 if ( !isset( $mainConfig->get( 'ObjectCaches' )[$objectCacheId] ) ) {
 303                         throw new UnexpectedValueException(
 304                                 "Cache type \"$objectCacheId\" is not present in \$wgObjectCaches." );
 305                 }
 306                 $params['store'] = $mainConfig->get( 'ObjectCaches' )[$objectCacheId];
 307
 308                 return \ObjectCache::newWANCacheFromParams( $params );
 309         },
 310
 311         'MediaHandlerFactory' => function ( MediaWikiServices $services ) : MediaHandlerFactory {
 312                 return new MediaHandlerFactory(
 313                         $services->getMainConfig()->get( 'MediaHandlers' )
 314                 );
 315         },
 316
 317         'MimeAnalyzer' => function ( MediaWikiServices $services ) : MimeAnalyzer {
 318                 $logger = LoggerFactory::getInstance( 'Mime' );
 319                 $mainConfig = $services->getMainConfig();
 320                 $params = [
 321                         'typeFile' => $mainConfig->get( 'MimeTypeFile' ),
 322                         'infoFile' => $mainConfig->get( 'MimeInfoFile' ),
 323                         'xmlTypes' => $mainConfig->get( 'XMLMimeTypes' ),
 324                         'guessCallback' =>
 325                                 function ( $mimeAnalyzer, &$head, &$tail, $file, &$mime ) use ( $logger ) {
 326                                         // Also test DjVu
 327                                         $deja = new DjVuImage( $file );
 328                                         if ( $deja->isValid() ) {
 329                                                 $logger->info( "Detected $file as image/vnd.djvu\n" );
 330                                                 $mime = 'image/vnd.djvu';
 331
 332                                                 return;
 333                                         }
 334                                         // Some strings by reference for performance - assuming well-behaved hooks
 335                                         Hooks::run(
 336                                                 'MimeMagicGuessFromContent',
 337                                                 [ $mimeAnalyzer, &$head, &$tail, $file, &$mime ]
 338                                         );
 339                                 },
 340                         'extCallback' => function ( $mimeAnalyzer, $ext, &$mime ) {
 341                                 // Media handling extensions can improve the MIME detected
 342                                 Hooks::run( 'MimeMagicImproveFromExtension', [ $mimeAnalyzer, $ext, &$mime ] );
 343                         },
 344                         'initCallback' => function ( $mimeAnalyzer ) {
 345                                 // Allow media handling extensions adding MIME-types and MIME-info
 346                                 Hooks::run( 'MimeMagicInit', [ $mimeAnalyzer ] );
 347                         },
 348                         'logger' => $logger
 349                 ];
 350
 351                 if ( $params['infoFile'] === 'includes/mime.info' ) {
 352                         $params['infoFile'] = __DIR__ . "/libs/mime/mime.info";
 353                 }
 354
 355                 if ( $params['typeFile'] === 'includes/mime.types' ) {
 356                         $params['typeFile'] = __DIR__ . "/libs/mime/mime.types";
 357                 }
 358
 359                 $detectorCmd = $mainConfig->get( 'MimeDetectorCommand' );
 360                 if ( $detectorCmd ) {
 361                         $factory = $services->getShellCommandFactory();
 362                         $params['detectCallback'] = function ( $file ) use ( $detectorCmd, $factory ) {
 363                                 $result = $factory->create()
 364                                         // $wgMimeDetectorCommand can contain commands with parameters
 365                                         ->unsafeParams( $detectorCmd )
 366                                         ->params( $file )
 367                                         ->execute();
 368                                 return $result->getStdout();
 369                         };
 370                 }
 371
 372                 return new MimeAnalyzer( $params );
 373         },
 374
 375         'NamespaceInfo' => function ( MediaWikiServices $services ) : NamespaceInfo {
 376                 return new NamespaceInfo( new ServiceOptions( NamespaceInfo::$constructorOptions,
 377                         $services->getMainConfig() ) );
 378         },
 379
 380         'NameTableStoreFactory' => function ( MediaWikiServices $services ) : NameTableStoreFactory {
 381                 return new NameTableStoreFactory(
 382                         $services->getDBLoadBalancerFactory(),
 383                         $services->getMainWANObjectCache(),
 384                         LoggerFactory::getInstance( 'NameTableSqlStore' )
 385                 );
 386         },
 387
 388         'OldRevisionImporter' => function ( MediaWikiServices $services ) : OldRevisionImporter {
 389                 return new ImportableOldRevisionImporter(
 390                         true,
 391                         LoggerFactory::getInstance( 'OldRevisionImporter' ),
 392                         $services->getDBLoadBalancer()
 393                 );
 394         },
 395
 396         'PageEditStash' => function ( MediaWikiServices $services ) : PageEditStash {
 397                 $config = $services->getMainConfig();
 398
 399                 return new PageEditStash(
 400                         ObjectCache::getLocalClusterInstance(),
 401                         $services->getDBLoadBalancer(),
 402                         LoggerFactory::getInstance( 'StashEdit' ),
 403                         $services->getStatsdDataFactory(),
 404                         defined( 'MEDIAWIKI_JOB_RUNNER' ) || $config->get( 'CommandLineMode' )
 405                                 ? PageEditStash::INITIATOR_JOB_OR_CLI
 406                                 : PageEditStash::INITIATOR_USER
 407                 );
 408         },
 409
 410         'Parser' => function ( MediaWikiServices $services ) : Parser {
 411                 return $services->getParserFactory()->create();
 412         },
 413
 414         'ParserCache' => function ( MediaWikiServices $services ) : ParserCache {
 415                 $config = $services->getMainConfig();
 416                 $cache = ObjectCache::getInstance( $config->get( 'ParserCacheType' ) );
 417                 wfDebugLog( 'caches', 'parser: ' . get_class( $cache ) );
 418
 419                 return new ParserCache(
 420                         $cache,
 421                         $config->get( 'CacheEpoch' )
 422                 );
 423         },
 424
 425         'ParserFactory' => function ( MediaWikiServices $services ) : ParserFactory {
 426                 $options = new ServiceOptions( Parser::$constructorOptions,
 427                         // 'class' and 'preprocessorClass'
 428                         $services->getMainConfig()->get( 'ParserConf' ),
 429                         // Make sure to have defaults in case someone overrode ParserConf with something silly
 430                         [ 'class' => Parser::class,
 431                                 'preprocessorClass' => Parser::getDefaultPreprocessorClass() ],
 432                         // Plus a buch of actual config options
 433                         $services->getMainConfig()
 434                 );
 435
 436                 return new ParserFactory(
 437                         $options,
 438                         $services->getMagicWordFactory(),
 439                         $services->getContentLanguage(),
 440                         wfUrlProtocols(),
 441                         $services->getSpecialPageFactory(),
 442                         $services->getLinkRendererFactory(),
 443                         $services->getNamespaceInfo()
 444                 );
 445         },
 446
 447         'PasswordFactory' => function ( MediaWikiServices $services ) : PasswordFactory {
 448                 $config = $services->getMainConfig();
 449                 return new PasswordFactory(
 450                         $config->get( 'PasswordConfig' ),
 451                         $config->get( 'PasswordDefault' )
 452                 );
 453         },
 454
 455         'PerDbNameStatsdDataFactory' =>
 456         function ( MediaWikiServices $services ) : StatsdDataFactoryInterface {
 457                 $config = $services->getMainConfig();
 458                 $wiki = $config->get( 'DBname' );
 459                 return new PrefixingStatsdDataFactoryProxy(
 460                         $services->getStatsdDataFactory(),
 461                         $wiki
 462                 );
 463         },
 464
 465         'PermissionManager' => function ( MediaWikiServices $services ) : PermissionManager {
 466                 $config = $services->getMainConfig();
 467                 return new PermissionManager(
 468                         $services->getSpecialPageFactory(),
 469                         $services->getRevisionLookup(),
 470                         $config->get( 'WhitelistRead' ),
 471                         $config->get( 'WhitelistReadRegexp' ),
 472                         $config->get( 'EmailConfirmToEdit' ),
 473                         $config->get( 'BlockDisablesLogin' ),
 474                         $config->get( 'GroupPermissions' ),
 475                         $config->get( 'RevokePermissions' ),
 476                         $config->get( 'AvailableRights' ),
 477                         $services->getNamespaceInfo()
 478                 );
 479         },
 480
 481         'PreferencesFactory' => function ( MediaWikiServices $services ) : PreferencesFactory {
 482                 $factory = new DefaultPreferencesFactory(
 483                         new ServiceOptions(
 484                                 DefaultPreferencesFactory::$constructorOptions, $services->getMainConfig() ),
 485                         $services->getContentLanguage(),
 486                         AuthManager::singleton(),
 487                         $services->getLinkRendererFactory()->create(),
 488                         $services->getNamespaceInfo()
 489                 );
 490                 $factory->setLogger( LoggerFactory::getInstance( 'preferences' ) );
 491
 492                 return $factory;
 493         },
 494
 495         'ProxyLookup' => function ( MediaWikiServices $services ) : ProxyLookup {
 496                 $mainConfig = $services->getMainConfig();
 497                 return new ProxyLookup(
 498                         $mainConfig->get( 'CdnServers' ),
 499                         $mainConfig->get( 'CdnServersNoPurge' )
 500                 );
 501         },
 502
 503         'ReadOnlyMode' => function ( MediaWikiServices $services ) : ReadOnlyMode {
 504                 return new ReadOnlyMode(
 505                         $services->getConfiguredReadOnlyMode(),
 506                         $services->getDBLoadBalancer()
 507                 );
 508         },
 509
 510         'RepoGroup' => function ( MediaWikiServices $services ) : RepoGroup {
 511                 $config = $services->getMainConfig();
 512                 return new RepoGroup(
 513                         $config->get( 'LocalFileRepo' ),
 514                         $config->get( 'ForeignFileRepos' ),
 515                         $services->getMainWANObjectCache()
 516                 );
 517         },
 518
 519         'ResourceLoader' => function ( MediaWikiServices $services ) : ResourceLoader {
 520                 // @todo This should not take a Config object, but it's not so easy to remove because it
 521                 // exposes it in a getter, which is actually used.
 522                 global $IP;
 523                 $config = $services->getMainConfig();
 524
 525                 $rl = new ResourceLoader(
 526                         $config,
 527                         LoggerFactory::getInstance( 'resourceloader' )
 528                 );
 529
 530                 $rl->addSource( $config->get( 'ResourceLoaderSources' ) );
 531
 532                 // Core modules, then extension/skin modules
 533                 $rl->register( include "$IP/resources/Resources.php" );
 534                 $rl->register( $config->get( 'ResourceModules' ) );
 535                 Hooks::run( 'ResourceLoaderRegisterModules', [ &$rl ] );
 536
 537                 if ( $config->get( 'EnableJavaScriptTest' ) === true ) {
 538                         $rl->registerTestModules();
 539                 }
 540
 541                 return $rl;
 542         },
 543
 544         'RevisionFactory' => function ( MediaWikiServices $services ) : RevisionFactory {
 545                 return $services->getRevisionStore();
 546         },
 547
 548         'RevisionLookup' => function ( MediaWikiServices $services ) : RevisionLookup {
 549                 return $services->getRevisionStore();
 550         },
 551
 552         'RevisionRenderer' => function ( MediaWikiServices $services ) : RevisionRenderer {
 553                 $renderer = new RevisionRenderer(
 554                         $services->getDBLoadBalancer(),
 555                         $services->getSlotRoleRegistry()
 556                 );
 557
 558                 $renderer->setLogger( LoggerFactory::getInstance( 'SaveParse' ) );
 559                 return $renderer;
 560         },
 561
 562         'RevisionStore' => function ( MediaWikiServices $services ) : RevisionStore {
 563                 return $services->getRevisionStoreFactory()->getRevisionStore();
 564         },
 565
 566         'RevisionStoreFactory' => function ( MediaWikiServices $services ) : RevisionStoreFactory {
 567                 $config = $services->getMainConfig();
 568                 $store = new RevisionStoreFactory(
 569                         $services->getDBLoadBalancerFactory(),
 570                         $services->getBlobStoreFactory(),
 571                         $services->getNameTableStoreFactory(),
 572                         $services->getSlotRoleRegistry(),
 573                         $services->getMainWANObjectCache(),
 574                         $services->getCommentStore(),
 575                         $services->getActorMigration(),
 576                         $config->get( 'MultiContentRevisionSchemaMigrationStage' ),
 577                         LoggerFactory::getProvider(),
 578                         $config->get( 'ContentHandlerUseDB' )
 579                 );
 580
 581                 return $store;
 582         },
 583
 584         'SearchEngineConfig' => function ( MediaWikiServices $services ) : SearchEngineConfig {
 585                 // @todo This should not take a Config object, but it's not so easy to remove because it
 586                 // exposes it in a getter, which is actually used.
 587                 return new SearchEngineConfig( $services->getMainConfig(),
 588                         $services->getContentLanguage() );
 589         },
 590
 591         'SearchEngineFactory' => function ( MediaWikiServices $services ) : SearchEngineFactory {
 592                 return new SearchEngineFactory( $services->getSearchEngineConfig() );
 593         },
 594
 595         'ShellCommandFactory' => function ( MediaWikiServices $services ) : CommandFactory {
 596                 $config = $services->getMainConfig();
 597
 598                 $limits = [
 599                         'time' => $config->get( 'MaxShellTime' ),
 600                         'walltime' => $config->get( 'MaxShellWallClockTime' ),
 601                         'memory' => $config->get( 'MaxShellMemory' ),
 602                         'filesize' => $config->get( 'MaxShellFileSize' ),
 603                 ];
 604                 $cgroup = $config->get( 'ShellCgroup' );
 605                 $restrictionMethod = $config->get( 'ShellRestrictionMethod' );
 606
 607                 $factory = new CommandFactory( $limits, $cgroup, $restrictionMethod );
 608                 $factory->setLogger( LoggerFactory::getInstance( 'exec' ) );
 609                 $factory->logStderr();
 610
 611                 return $factory;
 612         },
 613
 614         'SiteLookup' => function ( MediaWikiServices $services ) : SiteLookup {
 615                 // Use SiteStore as the SiteLookup as well. This was originally separated
 616                 // to allow for a cacheable read-only interface (using FileBasedSiteLookup),
 617                 // but this was never used. SiteStore has caching (see below).
 618                 return $services->getSiteStore();
 619         },
 620
 621         'SiteStore' => function ( MediaWikiServices $services ) : SiteStore {
 622                 $rawSiteStore = new DBSiteStore( $services->getDBLoadBalancer() );
 623
 624                 // TODO: replace wfGetCache with a CacheFactory service.
 625                 // TODO: replace wfIsHHVM with a capabilities service.
 626                 $cache = wfGetCache( wfIsHHVM() ? CACHE_ACCEL : CACHE_ANYTHING );
 627
 628                 return new CachingSiteStore( $rawSiteStore, $cache );
 629         },
 630
 631         'SkinFactory' => function ( MediaWikiServices $services ) : SkinFactory {
 632                 $factory = new SkinFactory();
 633
 634                 $names = $services->getMainConfig()->get( 'ValidSkinNames' );
 635
 636                 foreach ( $names as $name => $skin ) {
 637                         $factory->register( $name, $skin, function () use ( $name, $skin ) {
 638                                 $class = "Skin$skin";
 639                                 return new $class( $name );
 640                         } );
 641                 }
 642                 // Register a hidden "fallback" skin
 643                 $factory->register( 'fallback', 'Fallback', function () {
 644                         return new SkinFallback;
 645                 } );
 646                 // Register a hidden skin for api output
 647                 $factory->register( 'apioutput', 'ApiOutput', function () {
 648                         return new SkinApi;
 649                 } );
 650
 651                 return $factory;
 652         },
 653
 654         'SlotRoleRegistry' => function ( MediaWikiServices $services ) : SlotRoleRegistry {
 655                 $config = $services->getMainConfig();
 656
 657                 $registry = new SlotRoleRegistry(
 658                         $services->getNameTableStoreFactory()->getSlotRoles()
 659                 );
 660
 661                 $registry->defineRole( 'main', function () use ( $config ) {
 662                         return new MainSlotRoleHandler(
 663                                 $config->get( 'NamespaceContentModels' )
 664                         );
 665                 } );
 666
 667                 return $registry;
 668         },
 669
 670         'SpecialPageFactory' => function ( MediaWikiServices $services ) : SpecialPageFactory {
 671                 return new SpecialPageFactory(
 672                         new ServiceOptions(
 673                                 SpecialPageFactory::$constructorOptions, $services->getMainConfig() ),
 674                         $services->getContentLanguage()
 675                 );
 676         },
 677
 678         'StatsdDataFactory' => function ( MediaWikiServices $services ) : IBufferingStatsdDataFactory {
 679                 return new BufferingStatsdDataFactory(
 680                         rtrim( $services->getMainConfig()->get( 'StatsdMetricPrefix' ), '.' )
 681                 );
 682         },
 683
 684         'TitleFormatter' => function ( MediaWikiServices $services ) : TitleFormatter {
 685                 return $services->getService( '_MediaWikiTitleCodec' );
 686         },
 687
 688         'TitleParser' => function ( MediaWikiServices $services ) : TitleParser {
 689                 return $services->getService( '_MediaWikiTitleCodec' );
 690         },
 691
 692         'UploadRevisionImporter' => function ( MediaWikiServices $services ) : UploadRevisionImporter {
 693                 return new ImportableUploadRevisionImporter(
 694                         $services->getMainConfig()->get( 'EnableUploads' ),
 695                         LoggerFactory::getInstance( 'UploadRevisionImporter' )
 696                 );
 697         },
 698
 699         'VirtualRESTServiceClient' =>
 700         function ( MediaWikiServices $services ) : VirtualRESTServiceClient {
 701                 $config = $services->getMainConfig()->get( 'VirtualRestConfig' );
 702
 703                 $vrsClient = new VirtualRESTServiceClient( new MultiHttpClient( [] ) );
 704                 foreach ( $config['paths'] as $prefix => $serviceConfig ) {
 705                         $class = $serviceConfig['class'];
 706                         // Merge in the global defaults
 707                         $constructArg = $serviceConfig['options'] ?? [];
 708                         $constructArg += $config['global'];
 709                         // Make the VRS service available at the mount point
 710                         $vrsClient->mount( $prefix, [ 'class' => $class, 'config' => $constructArg ] );
 711                 }
 712
 713                 return $vrsClient;
 714         },
 715
 716         'WatchedItemQueryService' =>
 717         function ( MediaWikiServices $services ) : WatchedItemQueryService {
 718                 return new WatchedItemQueryService(
 719                         $services->getDBLoadBalancer(),
 720                         $services->getCommentStore(),
 721                         $services->getActorMigration(),
 722                         $services->getWatchedItemStore()
 723                 );
 724         },
 725
 726         'WatchedItemStore' => function ( MediaWikiServices $services ) : WatchedItemStore {
 727                 $store = new WatchedItemStore(
 728                         $services->getDBLoadBalancerFactory(),
 729                         JobQueueGroup::singleton(),
 730                         $services->getMainObjectStash(),
 731                         new HashBagOStuff( [ 'maxKeys' => 100 ] ),
 732                         $services->getReadOnlyMode(),
 733                         $services->getMainConfig()->get( 'UpdateRowsPerQuery' ),
 734                         $services->getNamespaceInfo(),
 735                         $services->getRevisionLookup()
 736                 );
 737                 $store->setStatsdDataFactory( $services->getStatsdDataFactory() );
 738
 739                 if ( $services->getMainConfig()->get( 'ReadOnlyWatchedItemStore' ) ) {
 740                         $store = new NoWriteWatchedItemStore( $store );
 741                 }
 742
 743                 return $store;
 744         },
 745
 746         'WikiRevisionOldRevisionImporterNoUpdates' =>
 747         function ( MediaWikiServices $services ) : ImportableOldRevisionImporter {
 748                 return new ImportableOldRevisionImporter(
 749                         false,
 750                         LoggerFactory::getInstance( 'OldRevisionImporter' ),
 751                         $services->getDBLoadBalancer()
 752                 );
 753         },
 754
 755         '_MediaWikiTitleCodec' => function ( MediaWikiServices $services ) : MediaWikiTitleCodec {
 756                 return new MediaWikiTitleCodec(
 757                         $services->getContentLanguage(),
 758                         $services->getGenderCache(),
 759                         $services->getMainConfig()->get( 'LocalInterwikis' ),
 760                         $services->getInterwikiLookup(),
 761                         $services->getNamespaceInfo()
 762                 );
 763         },
 764
 765         '_SqlBlobStore' => function ( MediaWikiServices $services ) : SqlBlobStore {
 766                 return $services->getBlobStoreFactory()->newSqlBlobStore();
 767         },
 768
 769         ///////////////////////////////////////////////////////////////////////////
 770         // NOTE: When adding a service here, don't forget to add a getter function
 771         // in the MediaWikiServices class. The convenience getter should just call
 772         // $this->getService( 'FooBarService' ).
 773         ///////////////////////////////////////////////////////////////////////////
 774
 775 ];