includes/MediaWikiServices.php

   1 <?php
   2 namespace MediaWiki;
   3
   4 use ActorMigration;
   5 use CommentStore;
   6 use Config;
   7 use ConfigFactory;
   8 use CryptHKDF;
   9 use CryptRand;
  10 use EventRelayerGroup;
  11 use GenderCache;
  12 use GlobalVarConfig;
  13 use Hooks;
  14 use IBufferingStatsdDataFactory;
  15 use Liuggio\StatsdClient\Factory\StatsdDataFactoryInterface;
  16 use MediaWiki\Http\HttpRequestFactory;
  17 use MediaWiki\Preferences\PreferencesFactory;
  18 use MediaWiki\Shell\CommandFactory;
  19 use MediaWiki\Revision\RevisionRenderer;
  20 use MediaWiki\Revision\SlotRoleRegistry;
  21 use MediaWiki\Special\SpecialPageFactory;
  22 use MediaWiki\Storage\BlobStore;
  23 use MediaWiki\Storage\BlobStoreFactory;
  24 use MediaWiki\Storage\NameTableStore;
  25 use MediaWiki\Storage\NameTableStoreFactory;
  26 use MediaWiki\Revision\RevisionFactory;
  27 use MediaWiki\Revision\RevisionLookup;
  28 use MediaWiki\Revision\RevisionStore;
  29 use OldRevisionImporter;
  30 use MediaWiki\Revision\RevisionStoreFactory;
  31 use UploadRevisionImporter;
  32 use Wikimedia\Rdbms\LBFactory;
  33 use LinkCache;
  34 use Wikimedia\Rdbms\LoadBalancer;
  35 use MediaHandlerFactory;
  36 use MediaWiki\Config\ConfigRepository;
  37 use MediaWiki\Linker\LinkRenderer;
  38 use MediaWiki\Linker\LinkRendererFactory;
  39 use MWException;
  40 use MimeAnalyzer;
  41 use ObjectCache;
  42 use Parser;
  43 use ParserCache;
  44 use ParserFactory;
  45 use PasswordFactory;
  46 use ProxyLookup;
  47 use ResourceLoader;
  48 use SearchEngine;
  49 use SearchEngineConfig;
  50 use SearchEngineFactory;
  51 use SiteLookup;
  52 use SiteStore;
  53 use WatchedItemStoreInterface;
  54 use WatchedItemQueryService;
  55 use SkinFactory;
  56 use TitleFormatter;
  57 use TitleParser;
  58 use VirtualRESTServiceClient;
  59 use Wikimedia\Services\SalvageableService;
  60 use Wikimedia\Services\ServiceContainer;
  61 use Wikimedia\Services\NoSuchServiceException;
  62 use MediaWiki\Interwiki\InterwikiLookup;
  63 use MagicWordFactory;
  64
  65 /**
  66  * Service locator for MediaWiki core services.
  67  *
  68  * This program is free software; you can redistribute it and/or modify
  69  * it under the terms of the GNU General Public License as published by
  70  * the Free Software Foundation; either version 2 of the License, or
  71  * (at your option) any later version.
  72  *
  73  * This program is distributed in the hope that it will be useful,
  74  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  75  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
  76  * GNU General Public License for more details.
  77  *
  78  * You should have received a copy of the GNU General Public License along
  79  * with this program; if not, write to the Free Software Foundation, Inc.,
  80  * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
  81  * http://www.gnu.org/copyleft/gpl.html
  82  *
  83  * @file
  84  *
  85  * @since 1.27
  86  */
  87
  88 /**
  89  * MediaWikiServices is the service locator for the application scope of MediaWiki.
  90  * Its implemented as a simple configurable DI container.
  91  * MediaWikiServices acts as a top level factory/registry for top level services, and builds
  92  * the network of service objects that defines MediaWiki's application logic.
  93  * It acts as an entry point to MediaWiki's dependency injection mechanism.
  94  *
  95  * Services are defined in the "wiring" array passed to the constructor,
  96  * or by calling defineService().
  97  *
  98  * @see docs/injection.txt for an overview of using dependency injection in the
  99  *      MediaWiki code base.
 100  */
 101 class MediaWikiServices extends ServiceContainer {
 102
 103         /**
 104          * @var MediaWikiServices|null
 105          */
 106         private static $instance = null;
 107
 108         /**
 109          * Returns the global default instance of the top level service locator.
 110          *
 111          * @since 1.27
 112          *
 113          * The default instance is initialized using the service instantiator functions
 114          * defined in ServiceWiring.php.
 115          *
 116          * @note This should only be called by static functions! The instance returned here
 117          * should not be passed around! Objects that need access to a service should have
 118          * that service injected into the constructor, never a service locator!
 119          *
 120          * @return MediaWikiServices
 121          */
 122         public static function getInstance() {
 123                 if ( self::$instance === null ) {
 124                         // NOTE: constructing GlobalVarConfig here is not particularly pretty,
 125                         // but some information from the global scope has to be injected here,
 126                         // even if it's just a file name or database credentials to load
 127                         // configuration from.
 128                         $bootstrapConfig = new GlobalVarConfig();
 129                         self::$instance = self::newInstance( $bootstrapConfig, 'load' );
 130                 }
 131
 132                 return self::$instance;
 133         }
 134
 135         /**
 136          * Replaces the global MediaWikiServices instance.
 137          *
 138          * @since 1.28
 139          *
 140          * @note This is for use in PHPUnit tests only!
 141          *
 142          * @throws MWException if called outside of PHPUnit tests.
 143          *
 144          * @param MediaWikiServices $services The new MediaWikiServices object.
 145          *
 146          * @return MediaWikiServices The old MediaWikiServices object, so it can be restored later.
 147          */
 148         public static function forceGlobalInstance( MediaWikiServices $services ) {
 149                 if ( !defined( 'MW_PHPUNIT_TEST' ) ) {
 150                         throw new MWException( __METHOD__ . ' must not be used outside unit tests.' );
 151                 }
 152
 153                 $old = self::getInstance();
 154                 self::$instance = $services;
 155
 156                 return $old;
 157         }
 158
 159         /**
 160          * Creates a new instance of MediaWikiServices and sets it as the global default
 161          * instance. getInstance() will return a different MediaWikiServices object
 162          * after every call to resetGlobalInstance().
 163          *
 164          * @since 1.28
 165          *
 166          * @warning This should not be used during normal operation. It is intended for use
 167          * when the configuration has changed significantly since bootstrap time, e.g.
 168          * during the installation process or during testing.
 169          *
 170          * @warning Calling resetGlobalInstance() may leave the application in an inconsistent
 171          * state. Calling this is only safe under the ASSUMPTION that NO REFERENCE to
 172          * any of the services managed by MediaWikiServices exist. If any service objects
 173          * managed by the old MediaWikiServices instance remain in use, they may INTERFERE
 174          * with the operation of the services managed by the new MediaWikiServices.
 175          * Operating with a mix of services created by the old and the new
 176          * MediaWikiServices instance may lead to INCONSISTENCIES and even DATA LOSS!
 177          * Any class implementing LAZY LOADING is especially prone to this problem,
 178          * since instances would typically retain a reference to a storage layer service.
 179          *
 180          * @see forceGlobalInstance()
 181          * @see resetGlobalInstance()
 182          * @see resetBetweenTest()
 183          *
 184          * @param Config|null $bootstrapConfig The Config object to be registered as the
 185          *        'BootstrapConfig' service. This has to contain at least the information
 186          *        needed to set up the 'ConfigFactory' service. If not given, the bootstrap
 187          *        config of the old instance of MediaWikiServices will be re-used. If there
 188          *        was no previous instance, a new GlobalVarConfig object will be used to
 189          *        bootstrap the services.
 190          *
 191          * @param string $quick Set this to "quick" to allow expensive resources to be re-used.
 192          * See SalvageableService for details.
 193          *
 194          * @throws MWException If called after MW_SERVICE_BOOTSTRAP_COMPLETE has been defined in
 195          *         Setup.php (unless MW_PHPUNIT_TEST or MEDIAWIKI_INSTALL or RUN_MAINTENANCE_IF_MAIN
 196          *          is defined).
 197          */
 198         public static function resetGlobalInstance( Config $bootstrapConfig = null, $quick = '' ) {
 199                 if ( self::$instance === null ) {
 200                         // no global instance yet, nothing to reset
 201                         return;
 202                 }
 203
 204                 self::failIfResetNotAllowed( __METHOD__ );
 205
 206                 if ( $bootstrapConfig === null ) {
 207                         $bootstrapConfig = self::$instance->getBootstrapConfig();
 208                 }
 209
 210                 $oldInstance = self::$instance;
 211
 212                 self::$instance = self::newInstance( $bootstrapConfig, 'load' );
 213                 self::$instance->importWiring( $oldInstance, [ 'BootstrapConfig' ] );
 214
 215                 if ( $quick === 'quick' ) {
 216                         self::$instance->salvage( $oldInstance );
 217                 } else {
 218                         $oldInstance->destroy();
 219                 }
 220         }
 221
 222         /**
 223          * Salvages the state of any salvageable service instances in $other.
 224          *
 225          * @note $other will have been destroyed when salvage() returns.
 226          *
 227          * @param MediaWikiServices $other
 228          */
 229         private function salvage( self $other ) {
 230                 foreach ( $this->getServiceNames() as $name ) {
 231                         // The service could be new in the new instance and not registered in the
 232                         // other instance (e.g. an extension that was loaded after the instantiation of
 233                         // the other instance. Skip this service in this case. See T143974
 234                         try {
 235                                 $oldService = $other->peekService( $name );
 236                         } catch ( NoSuchServiceException $e ) {
 237                                 continue;
 238                         }
 239
 240                         if ( $oldService instanceof SalvageableService ) {
 241                                 /** @var SalvageableService $newService */
 242                                 $newService = $this->getService( $name );
 243                                 $newService->salvage( $oldService );
 244                         }
 245                 }
 246
 247                 $other->destroy();
 248         }
 249
 250         /**
 251          * Creates a new MediaWikiServices instance and initializes it according to the
 252          * given $bootstrapConfig. In particular, all wiring files defined in the
 253          * ServiceWiringFiles setting are loaded, and the MediaWikiServices hook is called.
 254          *
 255          * @param Config|null $bootstrapConfig The Config object to be registered as the
 256          *        'BootstrapConfig' service.
 257          *
 258          * @param string $loadWiring set this to 'load' to load the wiring files specified
 259          *        in the 'ServiceWiringFiles' setting in $bootstrapConfig.
 260          *
 261          * @return MediaWikiServices
 262          * @throws MWException
 263          * @throws \FatalError
 264          */
 265         private static function newInstance( Config $bootstrapConfig, $loadWiring = '' ) {
 266                 $instance = new self( $bootstrapConfig );
 267
 268                 // Load the default wiring from the specified files.
 269                 if ( $loadWiring === 'load' ) {
 270                         $wiringFiles = $bootstrapConfig->get( 'ServiceWiringFiles' );
 271                         $instance->loadWiringFiles( $wiringFiles );
 272                 }
 273
 274                 // Provide a traditional hook point to allow extensions to configure services.
 275                 Hooks::run( 'MediaWikiServices', [ $instance ] );
 276
 277                 return $instance;
 278         }
 279
 280         /**
 281          * Disables all storage layer services. After calling this, any attempt to access the
 282          * storage layer will result in an error. Use resetGlobalInstance() to restore normal
 283          * operation.
 284          *
 285          * @since 1.28
 286          *
 287          * @warning This is intended for extreme situations only and should never be used
 288          * while serving normal web requests. Legitimate use cases for this method include
 289          * the installation process. Test fixtures may also use this, if the fixture relies
 290          * on globalState.
 291          *
 292          * @see resetGlobalInstance()
 293          * @see resetChildProcessServices()
 294          */
 295         public static function disableStorageBackend() {
 296                 // TODO: also disable some Caches, JobQueues, etc
 297                 $destroy = [ 'DBLoadBalancer', 'DBLoadBalancerFactory' ];
 298                 $services = self::getInstance();
 299
 300                 foreach ( $destroy as $name ) {
 301                         $services->disableService( $name );
 302                 }
 303
 304                 ObjectCache::clear();
 305         }
 306
 307         /**
 308          * Resets any services that may have become stale after a child process
 309          * returns from after pcntl_fork(). It's also safe, but generally unnecessary,
 310          * to call this method from the parent process.
 311          *
 312          * @since 1.28
 313          *
 314          * @note This is intended for use in the context of process forking only!
 315          *
 316          * @see resetGlobalInstance()
 317          * @see disableStorageBackend()
 318          */
 319         public static function resetChildProcessServices() {
 320                 // NOTE: for now, just reset everything. Since we don't know the interdependencies
 321                 // between services, we can't do this more selectively at this time.
 322                 self::resetGlobalInstance();
 323
 324                 // Child, reseed because there is no bug in PHP:
 325                 // https://bugs.php.net/bug.php?id=42465
 326                 mt_srand( getmypid() );
 327         }
 328
 329         /**
 330          * Resets the given service for testing purposes.
 331          *
 332          * @since 1.28
 333          *
 334          * @warning This is generally unsafe! Other services may still retain references
 335          * to the stale service instance, leading to failures and inconsistencies. Subclasses
 336          * may use this method to reset specific services under specific instances, but
 337          * it should not be exposed to application logic.
 338          *
 339          * @note With proper dependency injection used throughout the codebase, this method
 340          * should not be needed. It is provided to allow tests that pollute global service
 341          * instances to clean up.
 342          *
 343          * @param string $name
 344          * @param bool $destroy Whether the service instance should be destroyed if it exists.
 345          *        When set to false, any existing service instance will effectively be detached
 346          *        from the container.
 347          *
 348          * @throws MWException if called outside of PHPUnit tests.
 349          */
 350         public function resetServiceForTesting( $name, $destroy = true ) {
 351                 if ( !defined( 'MW_PHPUNIT_TEST' ) && !defined( 'MW_PARSER_TEST' ) ) {
 352                         throw new MWException( 'resetServiceForTesting() must not be used outside unit tests.' );
 353                 }
 354
 355                 $this->resetService( $name, $destroy );
 356         }
 357
 358         /**
 359          * Convenience method that throws an exception unless it is called during a phase in which
 360          * resetting of global services is allowed. In general, services should not be reset
 361          * individually, since that may introduce inconsistencies.
 362          *
 363          * @since 1.28
 364          *
 365          * This method will throw an exception if:
 366          *
 367          * - self::$resetInProgress is false (to allow all services to be reset together
 368          *   via resetGlobalInstance)
 369          * - and MEDIAWIKI_INSTALL is not defined (to allow services to be reset during installation)
 370          * - and MW_PHPUNIT_TEST is not defined (to allow services to be reset during testing)
 371          *
 372          * This method is intended to be used to safeguard against accidentally resetting
 373          * global service instances that are not yet managed by MediaWikiServices. It is
 374          * defined here in the MediaWikiServices services class to have a central place
 375          * for managing service bootstrapping and resetting.
 376          *
 377          * @param string $method the name of the caller method, as given by __METHOD__.
 378          *
 379          * @throws MWException if called outside bootstrap mode.
 380          *
 381          * @see resetGlobalInstance()
 382          * @see forceGlobalInstance()
 383          * @see disableStorageBackend()
 384          */
 385         public static function failIfResetNotAllowed( $method ) {
 386                 if ( !defined( 'MW_PHPUNIT_TEST' )
 387                         && !defined( 'MW_PARSER_TEST' )
 388                         && !defined( 'MEDIAWIKI_INSTALL' )
 389                         && !defined( 'RUN_MAINTENANCE_IF_MAIN' )
 390                         && defined( 'MW_SERVICE_BOOTSTRAP_COMPLETE' )
 391                 ) {
 392                         throw new MWException( $method . ' may only be called during bootstrapping and unit tests!' );
 393                 }
 394         }
 395
 396         /**
 397          * @param Config $config The Config object to be registered as the 'BootstrapConfig' service.
 398          *        This has to contain at least the information needed to set up the 'ConfigFactory'
 399          *        service.
 400          */
 401         public function __construct( Config $config ) {
 402                 parent::__construct();
 403
 404                 // Register the given Config object as the bootstrap config service.
 405                 $this->defineService( 'BootstrapConfig', function () use ( $config ) {
 406                         return $config;
 407                 } );
 408         }
 409
 410         // CONVENIENCE GETTERS ////////////////////////////////////////////////////
 411
 412         /**
 413          * @since 1.31
 414          * @return ActorMigration
 415          */
 416         public function getActorMigration() {
 417                 return $this->getService( 'ActorMigration' );
 418         }
 419
 420         /**
 421          * @since 1.31
 422          * @return BlobStore
 423          */
 424         public function getBlobStore() {
 425                 return $this->getService( '_SqlBlobStore' );
 426         }
 427
 428         /**
 429          * @since 1.31
 430          * @return BlobStoreFactory
 431          */
 432         public function getBlobStoreFactory() {
 433                 return $this->getService( 'BlobStoreFactory' );
 434         }
 435
 436         /**
 437          * Returns the Config object containing the bootstrap configuration.
 438          * Bootstrap configuration would typically include database credentials
 439          * and other information that may be needed before the ConfigFactory
 440          * service can be instantiated.
 441          *
 442          * @note This should only be used during bootstrapping, in particular
 443          * when creating the MainConfig service. Application logic should
 444          * use getMainConfig() to get a Config instances.
 445          *
 446          * @since 1.27
 447          * @return Config
 448          */
 449         public function getBootstrapConfig() {
 450                 return $this->getService( 'BootstrapConfig' );
 451         }
 452
 453         /**
 454          * @since 1.32
 455          * @return NameTableStore
 456          */
 457         public function getChangeTagDefStore() {
 458                 return $this->getService( 'NameTableStoreFactory' )->getChangeTagDef();
 459         }
 460
 461         /**
 462          * @since 1.31
 463          * @return CommentStore
 464          */
 465         public function getCommentStore() {
 466                 return $this->getService( 'CommentStore' );
 467         }
 468
 469         /**
 470          * @since 1.27
 471          * @return ConfigFactory
 472          */
 473         public function getConfigFactory() {
 474                 return $this->getService( 'ConfigFactory' );
 475         }
 476
 477         /**
 478          * @since 1.32
 479          * @return ConfigRepository
 480          */
 481         public function getConfigRepository() {
 482                 return $this->getService( 'ConfigRepository' );
 483         }
 484
 485         /**
 486          * @since 1.29
 487          * @return \ConfiguredReadOnlyMode
 488          */
 489         public function getConfiguredReadOnlyMode() {
 490                 return $this->getService( 'ConfiguredReadOnlyMode' );
 491         }
 492
 493         /**
 494          * @since 1.32
 495          * @return \Language
 496          */
 497         public function getContentLanguage() {
 498                 return $this->getService( 'ContentLanguage' );
 499         }
 500
 501         /**
 502          * @since 1.31
 503          * @return NameTableStore
 504          */
 505         public function getContentModelStore() {
 506                 return $this->getService( 'NameTableStoreFactory' )->getContentModels();
 507         }
 508
 509         /**
 510          * @since 1.28
 511          * @return CryptHKDF
 512          */
 513         public function getCryptHKDF() {
 514                 return $this->getService( 'CryptHKDF' );
 515         }
 516
 517         /**
 518          * @since 1.28
 519          * @deprecated since 1.32, use random_bytes()/random_int()
 520          * @return CryptRand
 521          */
 522         public function getCryptRand() {
 523                 wfDeprecated( __METHOD__, '1.32' );
 524                 return $this->getService( 'CryptRand' );
 525         }
 526
 527         /**
 528          * @since 1.28
 529          * @return LoadBalancer The main DB load balancer for the local wiki.
 530          */
 531         public function getDBLoadBalancer() {
 532                 return $this->getService( 'DBLoadBalancer' );
 533         }
 534
 535         /**
 536          * @since 1.28
 537          * @return LBFactory
 538          */
 539         public function getDBLoadBalancerFactory() {
 540                 return $this->getService( 'DBLoadBalancerFactory' );
 541         }
 542
 543         /**
 544          * @since 1.27
 545          * @return EventRelayerGroup
 546          */
 547         public function getEventRelayerGroup() {
 548                 return $this->getService( 'EventRelayerGroup' );
 549         }
 550
 551         /**
 552          * @since 1.31
 553          * @return \ExternalStoreFactory
 554          */
 555         public function getExternalStoreFactory() {
 556                 return $this->getService( 'ExternalStoreFactory' );
 557         }
 558
 559         /**
 560          * @since 1.28
 561          * @return GenderCache
 562          */
 563         public function getGenderCache() {
 564                 return $this->getService( 'GenderCache' );
 565         }
 566
 567         /**
 568          * @since 1.31
 569          * @return HttpRequestFactory
 570          */
 571         public function getHttpRequestFactory() {
 572                 return $this->getService( 'HttpRequestFactory' );
 573         }
 574
 575         /**
 576          * @since 1.28
 577          * @return InterwikiLookup
 578          */
 579         public function getInterwikiLookup() {
 580                 return $this->getService( 'InterwikiLookup' );
 581         }
 582
 583         /**
 584          * @since 1.28
 585          * @return LinkCache
 586          */
 587         public function getLinkCache() {
 588                 return $this->getService( 'LinkCache' );
 589         }
 590
 591         /**
 592          * LinkRenderer instance that can be used
 593          * if no custom options are needed
 594          *
 595          * @since 1.28
 596          * @return LinkRenderer
 597          */
 598         public function getLinkRenderer() {
 599                 return $this->getService( 'LinkRenderer' );
 600         }
 601
 602         /**
 603          * @since 1.28
 604          * @return LinkRendererFactory
 605          */
 606         public function getLinkRendererFactory() {
 607                 return $this->getService( 'LinkRendererFactory' );
 608         }
 609
 610         /**
 611          * @since 1.28
 612          * @return \BagOStuff
 613          */
 614         public function getLocalServerObjectCache() {
 615                 return $this->getService( 'LocalServerObjectCache' );
 616         }
 617
 618         /**
 619          * @since 1.32
 620          * @return MagicWordFactory
 621          */
 622         public function getMagicWordFactory() {
 623                 return $this->getService( 'MagicWordFactory' );
 624         }
 625
 626         /**
 627          * Returns the Config object that provides configuration for MediaWiki core.
 628          * This may or may not be the same object that is returned by getBootstrapConfig().
 629          *
 630          * @since 1.27
 631          * @return Config
 632          */
 633         public function getMainConfig() {
 634                 return $this->getService( 'MainConfig' );
 635         }
 636
 637         /**
 638          * @since 1.28
 639          * @return \BagOStuff
 640          */
 641         public function getMainObjectStash() {
 642                 return $this->getService( 'MainObjectStash' );
 643         }
 644
 645         /**
 646          * @since 1.28
 647          * @return \WANObjectCache
 648          */
 649         public function getMainWANObjectCache() {
 650                 return $this->getService( 'MainWANObjectCache' );
 651         }
 652
 653         /**
 654          * @since 1.28
 655          * @return MediaHandlerFactory
 656          */
 657         public function getMediaHandlerFactory() {
 658                 return $this->getService( 'MediaHandlerFactory' );
 659         }
 660
 661         /**
 662          * @since 1.28
 663          * @return MimeAnalyzer
 664          */
 665         public function getMimeAnalyzer() {
 666                 return $this->getService( 'MimeAnalyzer' );
 667         }
 668
 669         /**
 670          * @since 1.32
 671          * @return NameTableStoreFactory
 672          */
 673         public function getNameTableStoreFactory() {
 674                 return $this->getService( 'NameTableStoreFactory' );
 675         }
 676
 677         /**
 678          * @return OldRevisionImporter
 679          */
 680         public function getOldRevisionImporter() {
 681                 return $this->getService( 'OldRevisionImporter' );
 682         }
 683
 684         /**
 685          * @since 1.29
 686          * @return Parser
 687          */
 688         public function getParser() {
 689                 return $this->getService( 'Parser' );
 690         }
 691
 692         /**
 693          * @since 1.30
 694          * @return ParserCache
 695          */
 696         public function getParserCache() {
 697                 return $this->getService( 'ParserCache' );
 698         }
 699
 700         /**
 701          * @since 1.32
 702          * @return ParserFactory
 703          */
 704         public function getParserFactory() {
 705                 return $this->getService( 'ParserFactory' );
 706         }
 707
 708         /**
 709          * @since 1.32
 710          * @return PasswordFactory
 711          */
 712         public function getPasswordFactory() {
 713                 return $this->getService( 'PasswordFactory' );
 714         }
 715
 716         /**
 717          * @since 1.32
 718          * @return StatsdDataFactoryInterface
 719          */
 720         public function getPerDbNameStatsdDataFactory() {
 721                 return $this->getService( 'PerDbNameStatsdDataFactory' );
 722         }
 723
 724         /**
 725          * @since 1.31
 726          * @return PreferencesFactory
 727          */
 728         public function getPreferencesFactory() {
 729                 return $this->getService( 'PreferencesFactory' );
 730         }
 731
 732         /**
 733          * @since 1.28
 734          * @return ProxyLookup
 735          */
 736         public function getProxyLookup() {
 737                 return $this->getService( 'ProxyLookup' );
 738         }
 739
 740         /**
 741          * @since 1.29
 742          * @return \ReadOnlyMode
 743          */
 744         public function getReadOnlyMode() {
 745                 return $this->getService( 'ReadOnlyMode' );
 746         }
 747
 748         /**
 749          * @since 1.33
 750          * @return ResourceLoader
 751          */
 752         public function getResourceLoader() {
 753                 return $this->getService( 'ResourceLoader' );
 754         }
 755
 756         /**
 757          * @since 1.31
 758          * @return RevisionFactory
 759          */
 760         public function getRevisionFactory() {
 761                 return $this->getService( 'RevisionFactory' );
 762         }
 763
 764         /**
 765          * @since 1.31
 766          * @return RevisionLookup
 767          */
 768         public function getRevisionLookup() {
 769                 return $this->getService( 'RevisionLookup' );
 770         }
 771
 772         /**
 773          * @since 1.32
 774          * @return RevisionRenderer
 775          */
 776         public function getRevisionRenderer() {
 777                 return $this->getService( 'RevisionRenderer' );
 778         }
 779
 780         /**
 781          * @since 1.31
 782          * @return RevisionStore
 783          */
 784         public function getRevisionStore() {
 785                 return $this->getService( 'RevisionStore' );
 786         }
 787
 788         /**
 789          * @since 1.32
 790          * @return RevisionStoreFactory
 791          */
 792         public function getRevisionStoreFactory() {
 793                 return $this->getService( 'RevisionStoreFactory' );
 794         }
 795
 796         /**
 797          * @since 1.27
 798          * @return SearchEngine
 799          */
 800         public function newSearchEngine() {
 801                 // New engine object every time, since they keep state
 802                 return $this->getService( 'SearchEngineFactory' )->create();
 803         }
 804
 805         /**
 806          * @since 1.27
 807          * @return SearchEngineConfig
 808          */
 809         public function getSearchEngineConfig() {
 810                 return $this->getService( 'SearchEngineConfig' );
 811         }
 812
 813         /**
 814          * @since 1.27
 815          * @return SearchEngineFactory
 816          */
 817         public function getSearchEngineFactory() {
 818                 return $this->getService( 'SearchEngineFactory' );
 819         }
 820
 821         /**
 822          * @since 1.30
 823          * @return CommandFactory
 824          */
 825         public function getShellCommandFactory() {
 826                 return $this->getService( 'ShellCommandFactory' );
 827         }
 828
 829         /**
 830          * @since 1.27
 831          * @return SiteLookup
 832          */
 833         public function getSiteLookup() {
 834                 return $this->getService( 'SiteLookup' );
 835         }
 836
 837         /**
 838          * @since 1.27
 839          * @return SiteStore
 840          */
 841         public function getSiteStore() {
 842                 return $this->getService( 'SiteStore' );
 843         }
 844
 845         /**
 846          * @since 1.27
 847          * @return SkinFactory
 848          */
 849         public function getSkinFactory() {
 850                 return $this->getService( 'SkinFactory' );
 851         }
 852
 853         /**
 854          * @since 1.33
 855          * @return SlotRoleRegistry
 856          */
 857         public function getSlotRoleRegistry() {
 858                 return $this->getService( 'SlotRoleRegistry' );
 859         }
 860
 861         /**
 862          * @since 1.31
 863          * @return NameTableStore
 864          */
 865         public function getSlotRoleStore() {
 866                 return $this->getService( 'NameTableStoreFactory' )->getSlotRoles();
 867         }
 868
 869         /**
 870          * @since 1.32
 871          * @return SpecialPageFactory
 872          */
 873         public function getSpecialPageFactory() : SpecialPageFactory {
 874                 return $this->getService( 'SpecialPageFactory' );
 875         }
 876
 877         /**
 878          * @since 1.27
 879          * @return IBufferingStatsdDataFactory
 880          */
 881         public function getStatsdDataFactory() {
 882                 return $this->getService( 'StatsdDataFactory' );
 883         }
 884
 885         /**
 886          * @since 1.28
 887          * @return TitleFormatter
 888          */
 889         public function getTitleFormatter() {
 890                 return $this->getService( 'TitleFormatter' );
 891         }
 892
 893         /**
 894          * @since 1.28
 895          * @return TitleParser
 896          */
 897         public function getTitleParser() {
 898                 return $this->getService( 'TitleParser' );
 899         }
 900
 901         /**
 902          * @since 1.32
 903          * @return UploadRevisionImporter
 904          */
 905         public function getUploadRevisionImporter() {
 906                 return $this->getService( 'UploadRevisionImporter' );
 907         }
 908
 909         /**
 910          * @since 1.28
 911          * @return VirtualRESTServiceClient
 912          */
 913         public function getVirtualRESTServiceClient() {
 914                 return $this->getService( 'VirtualRESTServiceClient' );
 915         }
 916
 917         /**
 918          * @since 1.28
 919          * @return WatchedItemQueryService
 920          */
 921         public function getWatchedItemQueryService() {
 922                 return $this->getService( 'WatchedItemQueryService' );
 923         }
 924
 925         /**
 926          * @since 1.28
 927          * @return WatchedItemStoreInterface
 928          */
 929         public function getWatchedItemStore() {
 930                 return $this->getService( 'WatchedItemStore' );
 931         }
 932
 933         /**
 934          * @since 1.31
 935          * @return \OldRevisionImporter
 936          */
 937         public function getWikiRevisionOldRevisionImporter() {
 938                 return $this->getService( 'OldRevisionImporter' );
 939         }
 940
 941         /**
 942          * @since 1.31
 943          * @return \OldRevisionImporter
 944          */
 945         public function getWikiRevisionOldRevisionImporterNoUpdates() {
 946                 return $this->getService( 'WikiRevisionOldRevisionImporterNoUpdates' );
 947         }
 948
 949         /**
 950          * @since 1.31
 951          * @return \UploadRevisionImporter
 952          */
 953         public function getWikiRevisionUploadImporter() {
 954                 return $this->getService( 'UploadRevisionImporter' );
 955         }
 956
 957 }