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