includes/MediaWikiServices.php

   1 <?php
   2
   3 namespace MediaWiki;
   4
   5 use ActorMigration;
   6 use CommentStore;
   7 use Config;
   8 use ConfigFactory;
   9 use CryptHKDF;
  10 use DateFormatterFactory;
  11 use EventRelayerGroup;
  12 use GenderCache;
  13 use GlobalVarConfig;
  14 use Hooks;
  15 use IBufferingStatsdDataFactory;
  16 use Liuggio\StatsdClient\Factory\StatsdDataFactoryInterface;
  17 use LocalisationCache;
  18 use MediaWiki\Block\BlockManager;
  19 use MediaWiki\Block\BlockRestrictionStore;
  20 use MediaWiki\FileBackend\FSFile\TempFSFileFactory;
  21 use MediaWiki\Http\HttpRequestFactory;
  22 use MediaWiki\Languages\LanguageNameUtils;
  23 use MediaWiki\Page\MovePageFactory;
  24 use MediaWiki\Permissions\PermissionManager;
  25 use MediaWiki\Preferences\PreferencesFactory;
  26 use MediaWiki\Revision\RevisionRenderer;
  27 use MediaWiki\Revision\SlotRoleRegistry;
  28 use MediaWiki\Shell\CommandFactory;
  29 use MediaWiki\Special\SpecialPageFactory;
  30 use MediaWiki\Storage\BlobStore;
  31 use MediaWiki\Storage\BlobStoreFactory;
  32 use MediaWiki\Storage\NameTableStore;
  33 use MediaWiki\Storage\NameTableStoreFactory;
  34 use MediaWiki\Revision\RevisionFactory;
  35 use MediaWiki\Revision\RevisionLookup;
  36 use MediaWiki\Revision\RevisionStore;
  37 use OldRevisionImporter;
  38 use MediaWiki\Revision\RevisionStoreFactory;
  39 use UploadRevisionImporter;
  40 use Wikimedia\Rdbms\ILoadBalancer;
  41 use LinkCache;
  42 use MediaHandlerFactory;
  43 use MediaWiki\Config\ConfigRepository;
  44 use MediaWiki\Linker\LinkRenderer;
  45 use MediaWiki\Linker\LinkRendererFactory;
  46 use MWException;
  47 use MessageCache;
  48 use MimeAnalyzer;
  49 use NamespaceInfo;
  50 use ObjectCache;
  51 use Parser;
  52 use ParserCache;
  53 use ParserFactory;
  54 use PasswordFactory;
  55 use ProxyLookup;
  56 use RepoGroup;
  57 use ResourceLoader;
  58 use SearchEngine;
  59 use SearchEngineConfig;
  60 use SearchEngineFactory;
  61 use SiteLookup;
  62 use SiteStore;
  63 use WatchedItemStoreInterface;
  64 use WatchedItemQueryService;
  65 use SkinFactory;
  66 use TitleFormatter;
  67 use TitleParser;
  68 use VirtualRESTServiceClient;
  69 use Wikimedia\Rdbms\LBFactory;
  70 use Wikimedia\Services\SalvageableService;
  71 use Wikimedia\Services\ServiceContainer;
  72 use Wikimedia\Services\NoSuchServiceException;
  73 use MediaWiki\Interwiki\InterwikiLookup;
  74 use MagicWordFactory;
  75 use MediaWiki\Storage\PageEditStash;
  76
  77 /**
  78  * Service locator for MediaWiki core services.
  79  *
  80  * This program is free software; you can redistribute it and/or modify
  81  * it under the terms of the GNU General Public License as published by
  82  * the Free Software Foundation; either version 2 of the License, or
  83  * (at your option) any later version.
  84  *
  85  * This program is distributed in the hope that it will be useful,
  86  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  87  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
  88  * GNU General Public License for more details.
  89  *
  90  * You should have received a copy of the GNU General Public License along
  91  * with this program; if not, write to the Free Software Foundation, Inc.,
  92  * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
  93  * http://www.gnu.org/copyleft/gpl.html
  94  *
  95  * @file
  96  *
  97  * @since 1.27
  98  */
  99
 100 /**
 101  * MediaWikiServices is the service locator for the application scope of MediaWiki.
 102  * Its implemented as a simple configurable DI container.
 103  * MediaWikiServices acts as a top level factory/registry for top level services, and builds
 104  * the network of service objects that defines MediaWiki's application logic.
 105  * It acts as an entry point to MediaWiki's dependency injection mechanism.
 106  *
 107  * Services are defined in the "wiring" array passed to the constructor,
 108  * or by calling defineService().
 109  *
 110  * @see docs/injection.txt for an overview of using dependency injection in the
 111  *      MediaWiki code base.
 112  */
 113 class MediaWikiServices extends ServiceContainer {
 114
 115         /**
 116          * @var MediaWikiServices|null
 117          */
 118         private static $instance = null;
 119
 120         /**
 121          * Returns the global default instance of the top level service locator.
 122          *
 123          * @since 1.27
 124          *
 125          * The default instance is initialized using the service instantiator functions
 126          * defined in ServiceWiring.php.
 127          *
 128          * @note This should only be called by static functions! The instance returned here
 129          * should not be passed around! Objects that need access to a service should have
 130          * that service injected into the constructor, never a service locator!
 131          *
 132          * @return MediaWikiServices
 133          */
 134         public static function getInstance() {
 135                 if ( self::$instance === null ) {
 136                         // NOTE: constructing GlobalVarConfig here is not particularly pretty,
 137                         // but some information from the global scope has to be injected here,
 138                         // even if it's just a file name or database credentials to load
 139                         // configuration from.
 140                         $bootstrapConfig = new GlobalVarConfig();
 141                         self::$instance = self::newInstance( $bootstrapConfig, 'load' );
 142                 }
 143
 144                 return self::$instance;
 145         }
 146
 147         /**
 148          * Replaces the global MediaWikiServices instance.
 149          *
 150          * @since 1.28
 151          *
 152          * @note This is for use in PHPUnit tests only!
 153          *
 154          * @throws MWException if called outside of PHPUnit tests.
 155          *
 156          * @param MediaWikiServices $services The new MediaWikiServices object.
 157          *
 158          * @return MediaWikiServices The old MediaWikiServices object, so it can be restored later.
 159          */
 160         public static function forceGlobalInstance( MediaWikiServices $services ) {
 161                 if ( !defined( 'MW_PHPUNIT_TEST' ) ) {
 162                         throw new MWException( __METHOD__ . ' must not be used outside unit tests.' );
 163                 }
 164
 165                 $old = self::getInstance();
 166                 self::$instance = $services;
 167
 168                 return $old;
 169         }
 170
 171         /**
 172          * Creates a new instance of MediaWikiServices and sets it as the global default
 173          * instance. getInstance() will return a different MediaWikiServices object
 174          * after every call to resetGlobalInstance().
 175          *
 176          * @since 1.28
 177          *
 178          * @warning This should not be used during normal operation. It is intended for use
 179          * when the configuration has changed significantly since bootstrap time, e.g.
 180          * during the installation process or during testing.
 181          *
 182          * @warning Calling resetGlobalInstance() may leave the application in an inconsistent
 183          * state. Calling this is only safe under the ASSUMPTION that NO REFERENCE to
 184          * any of the services managed by MediaWikiServices exist. If any service objects
 185          * managed by the old MediaWikiServices instance remain in use, they may INTERFERE
 186          * with the operation of the services managed by the new MediaWikiServices.
 187          * Operating with a mix of services created by the old and the new
 188          * MediaWikiServices instance may lead to INCONSISTENCIES and even DATA LOSS!
 189          * Any class implementing LAZY LOADING is especially prone to this problem,
 190          * since instances would typically retain a reference to a storage layer service.
 191          *
 192          * @see forceGlobalInstance()
 193          * @see resetGlobalInstance()
 194          * @see resetBetweenTest()
 195          *
 196          * @param Config|null $bootstrapConfig The Config object to be registered as the
 197          *        'BootstrapConfig' service. This has to contain at least the information
 198          *        needed to set up the 'ConfigFactory' service. If not given, the bootstrap
 199          *        config of the old instance of MediaWikiServices will be re-used. If there
 200          *        was no previous instance, a new GlobalVarConfig object will be used to
 201          *        bootstrap the services.
 202          *
 203          * @param string $quick Set this to "quick" to allow expensive resources to be re-used.
 204          * See SalvageableService for details.
 205          *
 206          * @throws MWException If called after MW_SERVICE_BOOTSTRAP_COMPLETE has been defined in
 207          *         Setup.php (unless MW_PHPUNIT_TEST or MEDIAWIKI_INSTALL or RUN_MAINTENANCE_IF_MAIN
 208          *          is defined).
 209          */
 210         public static function resetGlobalInstance( Config $bootstrapConfig = null, $quick = '' ) {
 211                 if ( self::$instance === null ) {
 212                         // no global instance yet, nothing to reset
 213                         return;
 214                 }
 215
 216                 self::failIfResetNotAllowed( __METHOD__ );
 217
 218                 if ( $bootstrapConfig === null ) {
 219                         $bootstrapConfig = self::$instance->getBootstrapConfig();
 220                 }
 221
 222                 $oldInstance = self::$instance;
 223
 224                 self::$instance = self::newInstance( $bootstrapConfig, 'load' );
 225                 self::$instance->importWiring( $oldInstance, [ 'BootstrapConfig' ] );
 226
 227                 if ( $quick === 'quick' ) {
 228                         self::$instance->salvage( $oldInstance );
 229                 } else {
 230                         $oldInstance->destroy();
 231                 }
 232         }
 233
 234         /** @noinspection PhpDocSignatureInspection */
 235
 236         /**
 237          * Salvages the state of any salvageable service instances in $other.
 238          *
 239          * @note $other will have been destroyed when salvage() returns.
 240          *
 241          * @param MediaWikiServices $other
 242          */
 243         private function salvage( self $other ) {
 244                 foreach ( $this->getServiceNames() as $name ) {
 245                         // The service could be new in the new instance and not registered in the
 246                         // other instance (e.g. an extension that was loaded after the instantiation of
 247                         // the other instance. Skip this service in this case. See T143974
 248                         try {
 249                                 $oldService = $other->peekService( $name );
 250                         } catch ( NoSuchServiceException $e ) {
 251                                 continue;
 252                         }
 253
 254                         if ( $oldService instanceof SalvageableService ) {
 255                                 /** @var SalvageableService $newService */
 256                                 $newService = $this->getService( $name );
 257                                 $newService->salvage( $oldService );
 258                         }
 259                 }
 260
 261                 $other->destroy();
 262         }
 263
 264         /**
 265          * Creates a new MediaWikiServices instance and initializes it according to the
 266          * given $bootstrapConfig. In particular, all wiring files defined in the
 267          * ServiceWiringFiles setting are loaded, and the MediaWikiServices hook is called.
 268          *
 269          * @param Config|null $bootstrapConfig The Config object to be registered as the
 270          *        'BootstrapConfig' service.
 271          *
 272          * @param string $loadWiring set this to 'load' to load the wiring files specified
 273          *        in the 'ServiceWiringFiles' setting in $bootstrapConfig.
 274          *
 275          * @return MediaWikiServices
 276          * @throws MWException
 277          * @throws \FatalError
 278          */
 279         private static function newInstance( Config $bootstrapConfig, $loadWiring = '' ) {
 280                 $instance = new self( $bootstrapConfig );
 281
 282                 // Load the default wiring from the specified files.
 283                 if ( $loadWiring === 'load' ) {
 284                         $wiringFiles = $bootstrapConfig->get( 'ServiceWiringFiles' );
 285                         $instance->loadWiringFiles( $wiringFiles );
 286                 }
 287
 288                 // Provide a traditional hook point to allow extensions to configure services.
 289                 Hooks::run( 'MediaWikiServices', [ $instance ] );
 290
 291                 return $instance;
 292         }
 293
 294         /**
 295          * Disables all storage layer services. After calling this, any attempt to access the
 296          * storage layer will result in an error. Use resetGlobalInstance() to restore normal
 297          * operation.
 298          *
 299          * @since 1.28
 300          *
 301          * @warning This is intended for extreme situations only and should never be used
 302          * while serving normal web requests. Legitimate use cases for this method include
 303          * the installation process. Test fixtures may also use this, if the fixture relies
 304          * on globalState.
 305          *
 306          * @see resetGlobalInstance()
 307          * @see resetChildProcessServices()
 308          */
 309         public static function disableStorageBackend() {
 310                 // TODO: also disable some Caches, JobQueues, etc
 311                 $destroy = [ 'DBLoadBalancer', 'DBLoadBalancerFactory' ];
 312                 $services = self::getInstance();
 313
 314                 foreach ( $destroy as $name ) {
 315                         $services->disableService( $name );
 316                 }
 317
 318                 ObjectCache::clear();
 319         }
 320
 321         /**
 322          * Resets any services that may have become stale after a child process
 323          * returns from after pcntl_fork(). It's also safe, but generally unnecessary,
 324          * to call this method from the parent process.
 325          *
 326          * @since 1.28
 327          *
 328          * @note This is intended for use in the context of process forking only!
 329          *
 330          * @see resetGlobalInstance()
 331          * @see disableStorageBackend()
 332          */
 333         public static function resetChildProcessServices() {
 334                 // NOTE: for now, just reset everything. Since we don't know the interdependencies
 335                 // between services, we can't do this more selectively at this time.
 336                 self::resetGlobalInstance();
 337
 338                 // Child, reseed because there is no bug in PHP:
 339                 // https://bugs.php.net/bug.php?id=42465
 340                 mt_srand( getmypid() );
 341         }
 342
 343         /**
 344          * Resets the given service for testing purposes.
 345          *
 346          * @since 1.28
 347          *
 348          * @warning This is generally unsafe! Other services may still retain references
 349          * to the stale service instance, leading to failures and inconsistencies. Subclasses
 350          * may use this method to reset specific services under specific instances, but
 351          * it should not be exposed to application logic.
 352          *
 353          * @note With proper dependency injection used throughout the codebase, this method
 354          * should not be needed. It is provided to allow tests that pollute global service
 355          * instances to clean up.
 356          *
 357          * @param string $name
 358          * @param bool $destroy Whether the service instance should be destroyed if it exists.
 359          *        When set to false, any existing service instance will effectively be detached
 360          *        from the container.
 361          *
 362          * @throws MWException if called outside of PHPUnit tests.
 363          */
 364         public function resetServiceForTesting( $name, $destroy = true ) {
 365                 if ( !defined( 'MW_PHPUNIT_TEST' ) && !defined( 'MW_PARSER_TEST' ) ) {
 366                         throw new MWException( 'resetServiceForTesting() must not be used outside unit tests.' );
 367                 }
 368
 369                 $this->resetService( $name, $destroy );
 370         }
 371
 372         /**
 373          * Convenience method that throws an exception unless it is called during a phase in which
 374          * resetting of global services is allowed. In general, services should not be reset
 375          * individually, since that may introduce inconsistencies.
 376          *
 377          * @since 1.28
 378          *
 379          * This method will throw an exception if:
 380          *
 381          * - self::$resetInProgress is false (to allow all services to be reset together
 382          *   via resetGlobalInstance)
 383          * - and MEDIAWIKI_INSTALL is not defined (to allow services to be reset during installation)
 384          * - and MW_PHPUNIT_TEST is not defined (to allow services to be reset during testing)
 385          *
 386          * This method is intended to be used to safeguard against accidentally resetting
 387          * global service instances that are not yet managed by MediaWikiServices. It is
 388          * defined here in the MediaWikiServices services class to have a central place
 389          * for managing service bootstrapping and resetting.
 390          *
 391          * @param string $method the name of the caller method, as given by __METHOD__.
 392          *
 393          * @throws MWException if called outside bootstrap mode.
 394          *
 395          * @see resetGlobalInstance()
 396          * @see forceGlobalInstance()
 397          * @see disableStorageBackend()
 398          */
 399         public static function failIfResetNotAllowed( $method ) {
 400                 if ( !defined( 'MW_PHPUNIT_TEST' )
 401                         && !defined( 'MW_PARSER_TEST' )
 402                         && !defined( 'MEDIAWIKI_INSTALL' )
 403                         && !defined( 'RUN_MAINTENANCE_IF_MAIN' )
 404                         && defined( 'MW_SERVICE_BOOTSTRAP_COMPLETE' )
 405                 ) {
 406                         throw new MWException( $method . ' may only be called during bootstrapping and unit tests!' );
 407                 }
 408         }
 409
 410         /**
 411          * @param Config $config The Config object to be registered as the 'BootstrapConfig' service.
 412          *        This has to contain at least the information needed to set up the 'ConfigFactory'
 413          *        service.
 414          */
 415         public function __construct( Config $config ) {
 416                 parent::__construct();
 417
 418                 // Register the given Config object as the bootstrap config service.
 419                 $this->defineService( 'BootstrapConfig', function () use ( $config ) {
 420                         return $config;
 421                 } );
 422         }
 423
 424         // CONVENIENCE GETTERS ////////////////////////////////////////////////////
 425
 426         /**
 427          * @since 1.31
 428          * @return ActorMigration
 429          */
 430         public function getActorMigration() {
 431                 return $this->getService( 'ActorMigration' );
 432         }
 433
 434         /**
 435          * @since 1.34
 436          * @return BadFileLookup
 437          */
 438         public function getBadFileLookup() : BadFileLookup {
 439                 return $this->getService( 'BadFileLookup' );
 440         }
 441
 442         /**
 443          * @since 1.31
 444          * @return BlobStore
 445          */
 446         public function getBlobStore() {
 447                 return $this->getService( '_SqlBlobStore' );
 448         }
 449
 450         /**
 451          * @since 1.31
 452          * @return BlobStoreFactory
 453          */
 454         public function getBlobStoreFactory() {
 455                 return $this->getService( 'BlobStoreFactory' );
 456         }
 457
 458         /**
 459          * @since 1.34
 460          * @return BlockManager
 461          */
 462         public function getBlockManager() : BlockManager {
 463                 return $this->getService( 'BlockManager' );
 464         }
 465
 466         /**
 467          * @since 1.33
 468          * @return BlockRestrictionStore
 469          */
 470         public function getBlockRestrictionStore() : BlockRestrictionStore {
 471                 return $this->getService( 'BlockRestrictionStore' );
 472         }
 473
 474         /**
 475          * Returns the Config object containing the bootstrap configuration.
 476          * Bootstrap configuration would typically include database credentials
 477          * and other information that may be needed before the ConfigFactory
 478          * service can be instantiated.
 479          *
 480          * @note This should only be used during bootstrapping, in particular
 481          * when creating the MainConfig service. Application logic should
 482          * use getMainConfig() to get a Config instances.
 483          *
 484          * @since 1.27
 485          * @return Config
 486          */
 487         public function getBootstrapConfig() {
 488                 return $this->getService( 'BootstrapConfig' );
 489         }
 490
 491         /**
 492          * @since 1.32
 493          * @return NameTableStore
 494          */
 495         public function getChangeTagDefStore() {
 496                 return $this->getService( 'NameTableStoreFactory' )->getChangeTagDef();
 497         }
 498
 499         /**
 500          * @since 1.31
 501          * @return CommentStore
 502          */
 503         public function getCommentStore() {
 504                 return $this->getService( 'CommentStore' );
 505         }
 506
 507         /**
 508          * @since 1.27
 509          * @return ConfigFactory
 510          */
 511         public function getConfigFactory() {
 512                 return $this->getService( 'ConfigFactory' );
 513         }
 514
 515         /**
 516          * @since 1.32
 517          * @return ConfigRepository
 518          */
 519         public function getConfigRepository() {
 520                 return $this->getService( 'ConfigRepository' );
 521         }
 522
 523         /**
 524          * @since 1.29
 525          * @return \ConfiguredReadOnlyMode
 526          */
 527         public function getConfiguredReadOnlyMode() {
 528                 return $this->getService( 'ConfiguredReadOnlyMode' );
 529         }
 530
 531         /**
 532          * @since 1.32
 533          * @return \Language
 534          */
 535         public function getContentLanguage() {
 536                 return $this->getService( 'ContentLanguage' );
 537         }
 538
 539         /**
 540          * @since 1.31
 541          * @return NameTableStore
 542          */
 543         public function getContentModelStore() {
 544                 return $this->getService( 'NameTableStoreFactory' )->getContentModels();
 545         }
 546
 547         /**
 548          * @since 1.28
 549          * @return CryptHKDF
 550          */
 551         public function getCryptHKDF() {
 552                 return $this->getService( 'CryptHKDF' );
 553         }
 554
 555         /**
 556          * @since 1.33
 557          * @return DateFormatterFactory
 558          */
 559         public function getDateFormatterFactory() {
 560                 return $this->getService( 'DateFormatterFactory' );
 561         }
 562
 563         /**
 564          * @since 1.28
 565          * @return ILoadBalancer The main DB load balancer for the local wiki.
 566          */
 567         public function getDBLoadBalancer() {
 568                 return $this->getService( 'DBLoadBalancer' );
 569         }
 570
 571         /**
 572          * @since 1.28
 573          * @return LBFactory
 574          */
 575         public function getDBLoadBalancerFactory() {
 576                 return $this->getService( 'DBLoadBalancerFactory' );
 577         }
 578
 579         /**
 580          * @since 1.27
 581          * @return EventRelayerGroup
 582          */
 583         public function getEventRelayerGroup() {
 584                 return $this->getService( 'EventRelayerGroup' );
 585         }
 586
 587         /**
 588          * @since 1.34
 589          * @return \ExternalStoreAccess
 590          */
 591         public function getExternalStoreAccess() {
 592                 return $this->getService( 'ExternalStoreAccess' );
 593         }
 594
 595         /**
 596          * @since 1.31
 597          * @return \ExternalStoreFactory
 598          */
 599         public function getExternalStoreFactory() {
 600                 return $this->getService( 'ExternalStoreFactory' );
 601         }
 602
 603         /**
 604          * @since 1.28
 605          * @return GenderCache
 606          */
 607         public function getGenderCache() {
 608                 return $this->getService( 'GenderCache' );
 609         }
 610
 611         /**
 612          * @since 1.31
 613          * @return HttpRequestFactory
 614          */
 615         public function getHttpRequestFactory() {
 616                 return $this->getService( 'HttpRequestFactory' );
 617         }
 618
 619         /**
 620          * @since 1.28
 621          * @return InterwikiLookup
 622          */
 623         public function getInterwikiLookup() {
 624                 return $this->getService( 'InterwikiLookup' );
 625         }
 626
 627         /**
 628          * @since 1.34
 629          * @return LanguageNameUtils
 630          */
 631         public function getLanguageNameUtils() {
 632                 return $this->getService( 'LanguageNameUtils' );
 633         }
 634
 635         /**
 636          * @since 1.28
 637          * @return LinkCache
 638          */
 639         public function getLinkCache() {
 640                 return $this->getService( 'LinkCache' );
 641         }
 642
 643         /**
 644          * LinkRenderer instance that can be used
 645          * if no custom options are needed
 646          *
 647          * @since 1.28
 648          * @return LinkRenderer
 649          */
 650         public function getLinkRenderer() {
 651                 return $this->getService( 'LinkRenderer' );
 652         }
 653
 654         /**
 655          * @since 1.28
 656          * @return LinkRendererFactory
 657          */
 658         public function getLinkRendererFactory() {
 659                 return $this->getService( 'LinkRendererFactory' );
 660         }
 661
 662         /**
 663          * @since 1.34
 664          * @return LocalisationCache
 665          */
 666         public function getLocalisationCache() : LocalisationCache {
 667                 return $this->getService( 'LocalisationCache' );
 668         }
 669
 670         /**
 671          * @since 1.28
 672          * @return \BagOStuff
 673          */
 674         public function getLocalServerObjectCache() {
 675                 return $this->getService( 'LocalServerObjectCache' );
 676         }
 677
 678         /**
 679          * @since 1.32
 680          * @return MagicWordFactory
 681          */
 682         public function getMagicWordFactory() {
 683                 return $this->getService( 'MagicWordFactory' );
 684         }
 685
 686         /**
 687          * Returns the Config object that provides configuration for MediaWiki core.
 688          * This may or may not be the same object that is returned by getBootstrapConfig().
 689          *
 690          * @since 1.27
 691          * @return Config
 692          */
 693         public function getMainConfig() {
 694                 return $this->getService( 'MainConfig' );
 695         }
 696
 697         /**
 698          * @since 1.28
 699          * @return \BagOStuff
 700          */
 701         public function getMainObjectStash() {
 702                 return $this->getService( 'MainObjectStash' );
 703         }
 704
 705         /**
 706          * @since 1.28
 707          * @return \WANObjectCache
 708          */
 709         public function getMainWANObjectCache() {
 710                 return $this->getService( 'MainWANObjectCache' );
 711         }
 712
 713         /**
 714          * @since 1.28
 715          * @return MediaHandlerFactory
 716          */
 717         public function getMediaHandlerFactory() {
 718                 return $this->getService( 'MediaHandlerFactory' );
 719         }
 720
 721         /**
 722          * @since 1.34
 723          * @return MessageCache
 724          */
 725         public function getMessageCache() : MessageCache {
 726                 return $this->getService( 'MessageCache' );
 727         }
 728
 729         /**
 730          * @since 1.28
 731          * @return MimeAnalyzer
 732          */
 733         public function getMimeAnalyzer() {
 734                 return $this->getService( 'MimeAnalyzer' );
 735         }
 736
 737         /**
 738          * @since 1.34
 739          * @return MovePageFactory
 740          */
 741         public function getMovePageFactory() : MovePageFactory {
 742                 return $this->getService( 'MovePageFactory' );
 743         }
 744
 745         /**
 746          * @since 1.34
 747          * @return NamespaceInfo
 748          */
 749         public function getNamespaceInfo() : NamespaceInfo {
 750                 return $this->getService( 'NamespaceInfo' );
 751         }
 752
 753         /**
 754          * @since 1.32
 755          * @return NameTableStoreFactory
 756          */
 757         public function getNameTableStoreFactory() {
 758                 return $this->getService( 'NameTableStoreFactory' );
 759         }
 760
 761         /**
 762          * @since 1.32
 763          * @return OldRevisionImporter
 764          */
 765         public function getOldRevisionImporter() {
 766                 return $this->getService( 'OldRevisionImporter' );
 767         }
 768
 769         /**
 770          * @return PageEditStash
 771          * @since 1.34
 772          */
 773         public function getPageEditStash() {
 774                 return $this->getService( 'PageEditStash' );
 775         }
 776
 777         /**
 778          * @since 1.29
 779          * @return Parser
 780          */
 781         public function getParser() {
 782                 return $this->getService( 'Parser' );
 783         }
 784
 785         /**
 786          * @since 1.30
 787          * @return ParserCache
 788          */
 789         public function getParserCache() {
 790                 return $this->getService( 'ParserCache' );
 791         }
 792
 793         /**
 794          * @since 1.32
 795          * @return ParserFactory
 796          */
 797         public function getParserFactory() {
 798                 return $this->getService( 'ParserFactory' );
 799         }
 800
 801         /**
 802          * @since 1.32
 803          * @return PasswordFactory
 804          */
 805         public function getPasswordFactory() {
 806                 return $this->getService( 'PasswordFactory' );
 807         }
 808
 809         /**
 810          * @since 1.32
 811          * @return StatsdDataFactoryInterface
 812          */
 813         public function getPerDbNameStatsdDataFactory() {
 814                 return $this->getService( 'PerDbNameStatsdDataFactory' );
 815         }
 816
 817         /**
 818          * @since 1.33
 819          * @return PermissionManager
 820          */
 821         public function getPermissionManager() {
 822                 return $this->getService( 'PermissionManager' );
 823         }
 824
 825         /**
 826          * @since 1.31
 827          * @return PreferencesFactory
 828          */
 829         public function getPreferencesFactory() {
 830                 return $this->getService( 'PreferencesFactory' );
 831         }
 832
 833         /**
 834          * @since 1.28
 835          * @return ProxyLookup
 836          */
 837         public function getProxyLookup() {
 838                 return $this->getService( 'ProxyLookup' );
 839         }
 840
 841         /**
 842          * @since 1.29
 843          * @return \ReadOnlyMode
 844          */
 845         public function getReadOnlyMode() {
 846                 return $this->getService( 'ReadOnlyMode' );
 847         }
 848
 849         /**
 850          * @since 1.34
 851          * @return RepoGroup
 852          */
 853         public function getRepoGroup() : RepoGroup {
 854                 return $this->getService( 'RepoGroup' );
 855         }
 856
 857         /**
 858          * @since 1.33
 859          * @return ResourceLoader
 860          */
 861         public function getResourceLoader() {
 862                 return $this->getService( 'ResourceLoader' );
 863         }
 864
 865         /**
 866          * @since 1.31
 867          * @return RevisionFactory
 868          */
 869         public function getRevisionFactory() {
 870                 return $this->getService( 'RevisionFactory' );
 871         }
 872
 873         /**
 874          * @since 1.31
 875          * @return RevisionLookup
 876          */
 877         public function getRevisionLookup() {
 878                 return $this->getService( 'RevisionLookup' );
 879         }
 880
 881         /**
 882          * @since 1.32
 883          * @return RevisionRenderer
 884          */
 885         public function getRevisionRenderer() {
 886                 return $this->getService( 'RevisionRenderer' );
 887         }
 888
 889         /**
 890          * @since 1.31
 891          * @return RevisionStore
 892          */
 893         public function getRevisionStore() {
 894                 return $this->getService( 'RevisionStore' );
 895         }
 896
 897         /**
 898          * @since 1.32
 899          * @return RevisionStoreFactory
 900          */
 901         public function getRevisionStoreFactory() {
 902                 return $this->getService( 'RevisionStoreFactory' );
 903         }
 904
 905         /**
 906          * @since 1.27
 907          * @return SearchEngine
 908          */
 909         public function newSearchEngine() {
 910                 // New engine object every time, since they keep state
 911                 return $this->getService( 'SearchEngineFactory' )->create();
 912         }
 913
 914         /**
 915          * @since 1.27
 916          * @return SearchEngineConfig
 917          */
 918         public function getSearchEngineConfig() {
 919                 return $this->getService( 'SearchEngineConfig' );
 920         }
 921
 922         /**
 923          * @since 1.27
 924          * @return SearchEngineFactory
 925          */
 926         public function getSearchEngineFactory() {
 927                 return $this->getService( 'SearchEngineFactory' );
 928         }
 929
 930         /**
 931          * @since 1.30
 932          * @return CommandFactory
 933          */
 934         public function getShellCommandFactory() {
 935                 return $this->getService( 'ShellCommandFactory' );
 936         }
 937
 938         /**
 939          * @since 1.27
 940          * @return SiteLookup
 941          */
 942         public function getSiteLookup() {
 943                 return $this->getService( 'SiteLookup' );
 944         }
 945
 946         /**
 947          * @since 1.27
 948          * @return SiteStore
 949          */
 950         public function getSiteStore() {
 951                 return $this->getService( 'SiteStore' );
 952         }
 953
 954         /**
 955          * @since 1.27
 956          * @return SkinFactory
 957          */
 958         public function getSkinFactory() {
 959                 return $this->getService( 'SkinFactory' );
 960         }
 961
 962         /**
 963          * @since 1.33
 964          * @return SlotRoleRegistry
 965          */
 966         public function getSlotRoleRegistry() {
 967                 return $this->getService( 'SlotRoleRegistry' );
 968         }
 969
 970         /**
 971          * @since 1.31
 972          * @return NameTableStore
 973          */
 974         public function getSlotRoleStore() {
 975                 return $this->getService( 'NameTableStoreFactory' )->getSlotRoles();
 976         }
 977
 978         /**
 979          * @since 1.32
 980          * @return SpecialPageFactory
 981          */
 982         public function getSpecialPageFactory() : SpecialPageFactory {
 983                 return $this->getService( 'SpecialPageFactory' );
 984         }
 985
 986         /**
 987          * @since 1.27
 988          * @return IBufferingStatsdDataFactory
 989          */
 990         public function getStatsdDataFactory() {
 991                 return $this->getService( 'StatsdDataFactory' );
 992         }
 993
 994         /**
 995          * @since 1.34
 996          * @return TempFSFileFactory
 997          */
 998         public function getTempFSFileFactory() : TempFSFileFactory {
 999                 return $this->getService( 'TempFSFileFactory' );
1000         }
1001
1002         /**
1003          * @since 1.28
1004          * @return TitleFormatter
1005          */
1006         public function getTitleFormatter() {
1007                 return $this->getService( 'TitleFormatter' );
1008         }
1009
1010         /**
1011          * @since 1.28
1012          * @return TitleParser
1013          */
1014         public function getTitleParser() {
1015                 return $this->getService( 'TitleParser' );
1016         }
1017
1018         /**
1019          * @since 1.32
1020          * @return UploadRevisionImporter
1021          */
1022         public function getUploadRevisionImporter() {
1023                 return $this->getService( 'UploadRevisionImporter' );
1024         }
1025
1026         /**
1027          * @since 1.28
1028          * @return VirtualRESTServiceClient
1029          */
1030         public function getVirtualRESTServiceClient() {
1031                 return $this->getService( 'VirtualRESTServiceClient' );
1032         }
1033
1034         /**
1035          * @since 1.28
1036          * @return WatchedItemQueryService
1037          */
1038         public function getWatchedItemQueryService() {
1039                 return $this->getService( 'WatchedItemQueryService' );
1040         }
1041
1042         /**
1043          * @since 1.28
1044          * @return WatchedItemStoreInterface
1045          */
1046         public function getWatchedItemStore() {
1047                 return $this->getService( 'WatchedItemStore' );
1048         }
1049
1050         /**
1051          * @since 1.31
1052          * @return \OldRevisionImporter
1053          */
1054         public function getWikiRevisionOldRevisionImporter() {
1055                 return $this->getService( 'OldRevisionImporter' );
1056         }
1057
1058         /**
1059          * @since 1.31
1060          * @return \OldRevisionImporter
1061          */
1062         public function getWikiRevisionOldRevisionImporterNoUpdates() {
1063                 return $this->getService( 'WikiRevisionOldRevisionImporterNoUpdates' );
1064         }
1065
1066         /**
1067          * @since 1.31
1068          * @return \UploadRevisionImporter
1069          */
1070         public function getWikiRevisionUploadImporter() {
1071                 return $this->getService( 'UploadRevisionImporter' );
1072         }
1073
1074 }