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