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