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