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