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