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