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\Page\MovePageFactory;
  23 use MediaWiki\Permissions\PermissionManager;
  24 use MediaWiki\Preferences\PreferencesFactory;
  25 use MediaWiki\Revision\RevisionRenderer;
  26 use MediaWiki\Revision\SlotRoleRegistry;
  27 use MediaWiki\Shell\CommandFactory;
  28 use MediaWiki\Special\SpecialPageFactory;
  29 use MediaWiki\Storage\BlobStore;
  30 use MediaWiki\Storage\BlobStoreFactory;
  31 use MediaWiki\Storage\NameTableStore;
  32 use MediaWiki\Storage\NameTableStoreFactory;
  33 use MediaWiki\Revision\RevisionFactory;
  34 use MediaWiki\Revision\RevisionLookup;
  35 use MediaWiki\Revision\RevisionStore;
  36 use OldRevisionImporter;
  37 use MediaWiki\Revision\RevisionStoreFactory;
  38 use UploadRevisionImporter;
  39 use Wikimedia\Rdbms\ILoadBalancer;
  40 use LinkCache;
  41 use MediaHandlerFactory;
  42 use MediaWiki\Config\ConfigRepository;
  43 use MediaWiki\Linker\LinkRenderer;
  44 use MediaWiki\Linker\LinkRendererFactory;
  45 use MWException;
  46 use MessageCache;
  47 use MimeAnalyzer;
  48 use NamespaceInfo;
  49 use ObjectCache;
  50 use Parser;
  51 use ParserCache;
  52 use ParserFactory;
  53 use PasswordFactory;
  54 use ProxyLookup;
  55 use RepoGroup;
  56 use ResourceLoader;
  57 use SearchEngine;
  58 use SearchEngineConfig;
  59 use SearchEngineFactory;
  60 use SiteLookup;
  61 use SiteStore;
  62 use WatchedItemStoreInterface;
  63 use WatchedItemQueryService;
  64 use SkinFactory;
  65 use TitleFormatter;
  66 use TitleParser;
  67 use VirtualRESTServiceClient;
  68 use Wikimedia\ObjectFactory;
  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 1.28
 629          * @return LinkCache
 630          */
 631         public function getLinkCache() {
 632                 return $this->getService( 'LinkCache' );
 633         }
 634
 635         /**
 636          * LinkRenderer instance that can be used
 637          * if no custom options are needed
 638          *
 639          * @since 1.28
 640          * @return LinkRenderer
 641          */
 642         public function getLinkRenderer() {
 643                 return $this->getService( 'LinkRenderer' );
 644         }
 645
 646         /**
 647          * @since 1.28
 648          * @return LinkRendererFactory
 649          */
 650         public function getLinkRendererFactory() {
 651                 return $this->getService( 'LinkRendererFactory' );
 652         }
 653
 654         /**
 655          * @since 1.34
 656          * @return LocalisationCache
 657          */
 658         public function getLocalisationCache() : LocalisationCache {
 659                 return $this->getService( 'LocalisationCache' );
 660         }
 661
 662         /**
 663          * @since 1.28
 664          * @return \BagOStuff
 665          */
 666         public function getLocalServerObjectCache() {
 667                 return $this->getService( 'LocalServerObjectCache' );
 668         }
 669
 670         /**
 671          * @since 1.32
 672          * @return MagicWordFactory
 673          */
 674         public function getMagicWordFactory() {
 675                 return $this->getService( 'MagicWordFactory' );
 676         }
 677
 678         /**
 679          * Returns the Config object that provides configuration for MediaWiki core.
 680          * This may or may not be the same object that is returned by getBootstrapConfig().
 681          *
 682          * @since 1.27
 683          * @return Config
 684          */
 685         public function getMainConfig() {
 686                 return $this->getService( 'MainConfig' );
 687         }
 688
 689         /**
 690          * @since 1.28
 691          * @return \BagOStuff
 692          */
 693         public function getMainObjectStash() {
 694                 return $this->getService( 'MainObjectStash' );
 695         }
 696
 697         /**
 698          * @since 1.28
 699          * @return \WANObjectCache
 700          */
 701         public function getMainWANObjectCache() {
 702                 return $this->getService( 'MainWANObjectCache' );
 703         }
 704
 705         /**
 706          * @since 1.28
 707          * @return MediaHandlerFactory
 708          */
 709         public function getMediaHandlerFactory() {
 710                 return $this->getService( 'MediaHandlerFactory' );
 711         }
 712
 713         /**
 714          * @since 1.34
 715          * @return MessageCache
 716          */
 717         public function getMessageCache() : MessageCache {
 718                 return $this->getService( 'MessageCache' );
 719         }
 720
 721         /**
 722          * @since 1.28
 723          * @return MimeAnalyzer
 724          */
 725         public function getMimeAnalyzer() {
 726                 return $this->getService( 'MimeAnalyzer' );
 727         }
 728
 729         /**
 730          * @since 1.34
 731          * @return MovePageFactory
 732          */
 733         public function getMovePageFactory() : MovePageFactory {
 734                 return $this->getService( 'MovePageFactory' );
 735         }
 736
 737         /**
 738          * @since 1.34
 739          * @return NamespaceInfo
 740          */
 741         public function getNamespaceInfo() : NamespaceInfo {
 742                 return $this->getService( 'NamespaceInfo' );
 743         }
 744
 745         /**
 746          * @since 1.32
 747          * @return NameTableStoreFactory
 748          */
 749         public function getNameTableStoreFactory() {
 750                 return $this->getService( 'NameTableStoreFactory' );
 751         }
 752
 753         /**
 754          * ObjectFactory is intended for instantiating "handlers" from declarative definitions,
 755          * such as Action API modules, special pages, or REST API handlers.
 756          *
 757          * @since 1.34
 758          * @return ObjectFactory
 759          */
 760         public function getObjectFactory() {
 761                 return $this->getService( 'ObjectFactory' );
 762         }
 763
 764         /**
 765          * @since 1.32
 766          * @return OldRevisionImporter
 767          */
 768         public function getOldRevisionImporter() {
 769                 return $this->getService( 'OldRevisionImporter' );
 770         }
 771
 772         /**
 773          * @return PageEditStash
 774          * @since 1.34
 775          */
 776         public function getPageEditStash() {
 777                 return $this->getService( 'PageEditStash' );
 778         }
 779
 780         /**
 781          * @since 1.29
 782          * @return Parser
 783          */
 784         public function getParser() {
 785                 return $this->getService( 'Parser' );
 786         }
 787
 788         /**
 789          * @since 1.30
 790          * @return ParserCache
 791          */
 792         public function getParserCache() {
 793                 return $this->getService( 'ParserCache' );
 794         }
 795
 796         /**
 797          * @since 1.32
 798          * @return ParserFactory
 799          */
 800         public function getParserFactory() {
 801                 return $this->getService( 'ParserFactory' );
 802         }
 803
 804         /**
 805          * @since 1.32
 806          * @return PasswordFactory
 807          */
 808         public function getPasswordFactory() {
 809                 return $this->getService( 'PasswordFactory' );
 810         }
 811
 812         /**
 813          * @since 1.32
 814          * @return StatsdDataFactoryInterface
 815          */
 816         public function getPerDbNameStatsdDataFactory() {
 817                 return $this->getService( 'PerDbNameStatsdDataFactory' );
 818         }
 819
 820         /**
 821          * @since 1.33
 822          * @return PermissionManager
 823          */
 824         public function getPermissionManager() {
 825                 return $this->getService( 'PermissionManager' );
 826         }
 827
 828         /**
 829          * @since 1.31
 830          * @return PreferencesFactory
 831          */
 832         public function getPreferencesFactory() {
 833                 return $this->getService( 'PreferencesFactory' );
 834         }
 835
 836         /**
 837          * @since 1.28
 838          * @return ProxyLookup
 839          */
 840         public function getProxyLookup() {
 841                 return $this->getService( 'ProxyLookup' );
 842         }
 843
 844         /**
 845          * @since 1.29
 846          * @return \ReadOnlyMode
 847          */
 848         public function getReadOnlyMode() {
 849                 return $this->getService( 'ReadOnlyMode' );
 850         }
 851
 852         /**
 853          * @since 1.34
 854          * @return RepoGroup
 855          */
 856         public function getRepoGroup() : RepoGroup {
 857                 return $this->getService( 'RepoGroup' );
 858         }
 859
 860         /**
 861          * @since 1.33
 862          * @return ResourceLoader
 863          */
 864         public function getResourceLoader() {
 865                 return $this->getService( 'ResourceLoader' );
 866         }
 867
 868         /**
 869          * @since 1.31
 870          * @return RevisionFactory
 871          */
 872         public function getRevisionFactory() {
 873                 return $this->getService( 'RevisionFactory' );
 874         }
 875
 876         /**
 877          * @since 1.31
 878          * @return RevisionLookup
 879          */
 880         public function getRevisionLookup() {
 881                 return $this->getService( 'RevisionLookup' );
 882         }
 883
 884         /**
 885          * @since 1.32
 886          * @return RevisionRenderer
 887          */
 888         public function getRevisionRenderer() {
 889                 return $this->getService( 'RevisionRenderer' );
 890         }
 891
 892         /**
 893          * @since 1.31
 894          * @return RevisionStore
 895          */
 896         public function getRevisionStore() {
 897                 return $this->getService( 'RevisionStore' );
 898         }
 899
 900         /**
 901          * @since 1.32
 902          * @return RevisionStoreFactory
 903          */
 904         public function getRevisionStoreFactory() {
 905                 return $this->getService( 'RevisionStoreFactory' );
 906         }
 907
 908         /**
 909          * @since 1.27
 910          * @return SearchEngine
 911          */
 912         public function newSearchEngine() {
 913                 // New engine object every time, since they keep state
 914                 return $this->getService( 'SearchEngineFactory' )->create();
 915         }
 916
 917         /**
 918          * @since 1.27
 919          * @return SearchEngineConfig
 920          */
 921         public function getSearchEngineConfig() {
 922                 return $this->getService( 'SearchEngineConfig' );
 923         }
 924
 925         /**
 926          * @since 1.27
 927          * @return SearchEngineFactory
 928          */
 929         public function getSearchEngineFactory() {
 930                 return $this->getService( 'SearchEngineFactory' );
 931         }
 932
 933         /**
 934          * @since 1.30
 935          * @return CommandFactory
 936          */
 937         public function getShellCommandFactory() {
 938                 return $this->getService( 'ShellCommandFactory' );
 939         }
 940
 941         /**
 942          * @since 1.27
 943          * @return SiteLookup
 944          */
 945         public function getSiteLookup() {
 946                 return $this->getService( 'SiteLookup' );
 947         }
 948
 949         /**
 950          * @since 1.27
 951          * @return SiteStore
 952          */
 953         public function getSiteStore() {
 954                 return $this->getService( 'SiteStore' );
 955         }
 956
 957         /**
 958          * @since 1.27
 959          * @return SkinFactory
 960          */
 961         public function getSkinFactory() {
 962                 return $this->getService( 'SkinFactory' );
 963         }
 964
 965         /**
 966          * @since 1.33
 967          * @return SlotRoleRegistry
 968          */
 969         public function getSlotRoleRegistry() {
 970                 return $this->getService( 'SlotRoleRegistry' );
 971         }
 972
 973         /**
 974          * @since 1.31
 975          * @return NameTableStore
 976          */
 977         public function getSlotRoleStore() {
 978                 return $this->getService( 'NameTableStoreFactory' )->getSlotRoles();
 979         }
 980
 981         /**
 982          * @since 1.32
 983          * @return SpecialPageFactory
 984          */
 985         public function getSpecialPageFactory() : SpecialPageFactory {
 986                 return $this->getService( 'SpecialPageFactory' );
 987         }
 988
 989         /**
 990          * @since 1.27
 991          * @return IBufferingStatsdDataFactory
 992          */
 993         public function getStatsdDataFactory() {
 994                 return $this->getService( 'StatsdDataFactory' );
 995         }
 996
 997         /**
 998          * @since 1.34
 999          * @return TempFSFileFactory
1000          */
1001         public function getTempFSFileFactory() : TempFSFileFactory {
1002                 return $this->getService( 'TempFSFileFactory' );
1003         }
1004
1005         /**
1006          * @since 1.28
1007          * @return TitleFormatter
1008          */
1009         public function getTitleFormatter() {
1010                 return $this->getService( 'TitleFormatter' );
1011         }
1012
1013         /**
1014          * @since 1.28
1015          * @return TitleParser
1016          */
1017         public function getTitleParser() {
1018                 return $this->getService( 'TitleParser' );
1019         }
1020
1021         /**
1022          * @since 1.32
1023          * @return UploadRevisionImporter
1024          */
1025         public function getUploadRevisionImporter() {
1026                 return $this->getService( 'UploadRevisionImporter' );
1027         }
1028
1029         /**
1030          * @since 1.28
1031          * @return VirtualRESTServiceClient
1032          */
1033         public function getVirtualRESTServiceClient() {
1034                 return $this->getService( 'VirtualRESTServiceClient' );
1035         }
1036
1037         /**
1038          * @since 1.28
1039          * @return WatchedItemQueryService
1040          */
1041         public function getWatchedItemQueryService() {
1042                 return $this->getService( 'WatchedItemQueryService' );
1043         }
1044
1045         /**
1046          * @since 1.28
1047          * @return WatchedItemStoreInterface
1048          */
1049         public function getWatchedItemStore() {
1050                 return $this->getService( 'WatchedItemStore' );
1051         }
1052
1053         /**
1054          * @since 1.31
1055          * @return \OldRevisionImporter
1056          */
1057         public function getWikiRevisionOldRevisionImporter() {
1058                 return $this->getService( 'OldRevisionImporter' );
1059         }
1060
1061         /**
1062          * @since 1.31
1063          * @return \OldRevisionImporter
1064          */
1065         public function getWikiRevisionOldRevisionImporterNoUpdates() {
1066                 return $this->getService( 'WikiRevisionOldRevisionImporterNoUpdates' );
1067         }
1068
1069         /**
1070          * @since 1.31
1071          * @return \UploadRevisionImporter
1072          */
1073         public function getWikiRevisionUploadImporter() {
1074                 return $this->getService( 'UploadRevisionImporter' );
1075         }
1076
1077 }