<?php
/**
 * @license GPL-2.0-or-later
 * @file
 * @ingroup SpecialPage
 * @defgroup SpecialPage SpecialPage
 */

namespace MediaWiki\SpecialPage;

use MediaWiki\Config\ServiceOptions;
use MediaWiki\Context\IContextSource;
use MediaWiki\Context\RequestContext;
use MediaWiki\HookContainer\HookContainer;
use MediaWiki\HookContainer\HookRunner;
use MediaWiki\Language\Language;
use MediaWiki\Linker\LinkRenderer;
use MediaWiki\MainConfigNames;
use MediaWiki\Page\PageReference;
use MediaWiki\Profiler\ProfilingContext;
use MediaWiki\Specials\Redirects\SpecialAllMyUploads;
use MediaWiki\Specials\Redirects\SpecialListAdmins;
use MediaWiki\Specials\Redirects\SpecialListBots;
use MediaWiki\Specials\Redirects\SpecialMycontributions;
use MediaWiki\Specials\Redirects\SpecialMylog;
use MediaWiki\Specials\Redirects\SpecialMypage;
use MediaWiki\Specials\Redirects\SpecialMytalk;
use MediaWiki\Specials\Redirects\SpecialMyuploads;
use MediaWiki\Specials\Redirects\SpecialTalkPage;
use MediaWiki\Specials\SpecialActiveUsers;
use MediaWiki\Specials\SpecialAllMessages;
use MediaWiki\Specials\SpecialAllPages;
use MediaWiki\Specials\SpecialAncientPages;
use MediaWiki\Specials\SpecialApiHelp;
use MediaWiki\Specials\SpecialApiSandbox;
use MediaWiki\Specials\SpecialAuthenticationPopupSuccess;
use MediaWiki\Specials\SpecialAutoblockList;
use MediaWiki\Specials\SpecialBlankpage;
use MediaWiki\Specials\SpecialBlock;
use MediaWiki\Specials\SpecialBlockList;
use MediaWiki\Specials\SpecialBookSources;
use MediaWiki\Specials\SpecialBotPasswords;
use MediaWiki\Specials\SpecialBrokenRedirects;
use MediaWiki\Specials\SpecialCategories;
use MediaWiki\Specials\SpecialChangeContentModel;
use MediaWiki\Specials\SpecialChangeCredentials;
use MediaWiki\Specials\SpecialChangeEmail;
use MediaWiki\Specials\SpecialChangePassword;
use MediaWiki\Specials\SpecialComparePages;
use MediaWiki\Specials\SpecialConfirmEmail;
use MediaWiki\Specials\SpecialContribute;
use MediaWiki\Specials\SpecialContributions;
use MediaWiki\Specials\SpecialCreateAccount;
use MediaWiki\Specials\SpecialDeadendPages;
use MediaWiki\Specials\SpecialDeletedContributions;
use MediaWiki\Specials\SpecialDeletePage;
use MediaWiki\Specials\SpecialDiff;
use MediaWiki\Specials\SpecialDoubleRedirects;
use MediaWiki\Specials\SpecialEditPage;
use MediaWiki\Specials\SpecialEditRecovery;
use MediaWiki\Specials\SpecialEditTags;
use MediaWiki\Specials\SpecialEditWatchlist;
use MediaWiki\Specials\SpecialEmailInvalidate;
use MediaWiki\Specials\SpecialEmailUser;
use MediaWiki\Specials\SpecialExpandTemplates;
use MediaWiki\Specials\SpecialExport;
use MediaWiki\Specials\SpecialFewestRevisions;
use MediaWiki\Specials\SpecialFileDuplicateSearch;
use MediaWiki\Specials\SpecialFilepath;
use MediaWiki\Specials\SpecialGoToInterwiki;
use MediaWiki\Specials\SpecialImport;
use MediaWiki\Specials\SpecialInterwiki;
use MediaWiki\Specials\SpecialJavaScriptTest;
use MediaWiki\Specials\SpecialLinkAccounts;
use MediaWiki\Specials\SpecialLinkSearch;
use MediaWiki\Specials\SpecialListDuplicatedFiles;
use MediaWiki\Specials\SpecialListFiles;
use MediaWiki\Specials\SpecialListGrants;
use MediaWiki\Specials\SpecialListGroupRights;
use MediaWiki\Specials\SpecialListRedirects;
use MediaWiki\Specials\SpecialListUsers;
use MediaWiki\Specials\SpecialLockdb;
use MediaWiki\Specials\SpecialLog;
use MediaWiki\Specials\SpecialLonelyPages;
use MediaWiki\Specials\SpecialLongPages;
use MediaWiki\Specials\SpecialMediaStatistics;
use MediaWiki\Specials\SpecialMergeHistory;
use MediaWiki\Specials\SpecialMIMESearch;
use MediaWiki\Specials\SpecialMostCategories;
use MediaWiki\Specials\SpecialMostImages;
use MediaWiki\Specials\SpecialMostInterwikis;
use MediaWiki\Specials\SpecialMostLinked;
use MediaWiki\Specials\SpecialMostLinkedCategories;
use MediaWiki\Specials\SpecialMostLinkedTemplates;
use MediaWiki\Specials\SpecialMostRevisions;
use MediaWiki\Specials\SpecialMovePage;
use MediaWiki\Specials\SpecialMute;
use MediaWiki\Specials\SpecialMyLanguage;
use MediaWiki\Specials\SpecialNamespaceInfo;
use MediaWiki\Specials\SpecialNewFiles;
use MediaWiki\Specials\SpecialNewPages;
use MediaWiki\Specials\SpecialNewSection;
use MediaWiki\Specials\SpecialPageData;
use MediaWiki\Specials\SpecialPageHistory;
use MediaWiki\Specials\SpecialPageInfo;
use MediaWiki\Specials\SpecialPageLanguage;
use MediaWiki\Specials\SpecialPagesWithProp;
use MediaWiki\Specials\SpecialPasswordPolicies;
use MediaWiki\Specials\SpecialPasswordReset;
use MediaWiki\Specials\SpecialPermanentLink;
use MediaWiki\Specials\SpecialPreferences;
use MediaWiki\Specials\SpecialPrefixIndex;
use MediaWiki\Specials\SpecialProtectedPages;
use MediaWiki\Specials\SpecialProtectedTitles;
use MediaWiki\Specials\SpecialProtectPage;
use MediaWiki\Specials\SpecialPurge;
use MediaWiki\Specials\SpecialRandomInCategory;
use MediaWiki\Specials\SpecialRandomPage;
use MediaWiki\Specials\SpecialRandomRedirect;
use MediaWiki\Specials\SpecialRandomRootPage;
use MediaWiki\Specials\SpecialRecentChanges;
use MediaWiki\Specials\SpecialRecentChangesLinked;
use MediaWiki\Specials\SpecialRedirect;
use MediaWiki\Specials\SpecialRemoveCredentials;
use MediaWiki\Specials\SpecialRenameUser;
use MediaWiki\Specials\SpecialResetTokens;
use MediaWiki\Specials\SpecialRevisionDelete;
use MediaWiki\Specials\SpecialRunJobs;
use MediaWiki\Specials\SpecialSearch;
use MediaWiki\Specials\SpecialShortPages;
use MediaWiki\Specials\SpecialSpecialPages;
use MediaWiki\Specials\SpecialStatistics;
use MediaWiki\Specials\SpecialTags;
use MediaWiki\Specials\SpecialTrackingCategories;
use MediaWiki\Specials\SpecialUnblock;
use MediaWiki\Specials\SpecialUncategorizedCategories;
use MediaWiki\Specials\SpecialUncategorizedImages;
use MediaWiki\Specials\SpecialUncategorizedPages;
use MediaWiki\Specials\SpecialUncategorizedTemplates;
use MediaWiki\Specials\SpecialUndelete;
use MediaWiki\Specials\SpecialUnlinkAccounts;
use MediaWiki\Specials\SpecialUnlockdb;
use MediaWiki\Specials\SpecialUnusedCategories;
use MediaWiki\Specials\SpecialUnusedImages;
use MediaWiki\Specials\SpecialUnusedTemplates;
use MediaWiki\Specials\SpecialUnwatchedPages;
use MediaWiki\Specials\SpecialUpload;
use MediaWiki\Specials\SpecialUploadStash;
use MediaWiki\Specials\SpecialUserLogin;
use MediaWiki\Specials\SpecialUserLogout;
use MediaWiki\Specials\SpecialUserRights;
use MediaWiki\Specials\SpecialVersion;
use MediaWiki\Specials\SpecialWantedCategories;
use MediaWiki\Specials\SpecialWantedFiles;
use MediaWiki\Specials\SpecialWantedPages;
use MediaWiki\Specials\SpecialWantedTemplates;
use MediaWiki\Specials\SpecialWatchlist;
use MediaWiki\Specials\SpecialWhatLinksHere;
use MediaWiki\Specials\SpecialWithoutInterwiki;
use MediaWiki\Title\Title;
use MediaWiki\Title\TitleFactory;
use MediaWiki\User\User;
use Profiler;
use Wikimedia\DebugInfo\DebugInfoTrait;
use Wikimedia\ObjectFactory\ObjectFactory;
use Wikimedia\Stats\StatsFactory;

/**
 * Factory for handling the special page list and generating SpecialPage objects.
 *
 * To add a special page in an extension, add to $wgSpecialPages either
 * an object instance or an array containing the name and constructor
 * parameters. The latter is preferred for performance reasons.
 *
 * The object instantiated must be either an instance of SpecialPage or a
 * sub-class thereof. It must have an execute() method, which sends the HTML
 * for the special page to $wgOut. The parent class has an execute() method
 * which distributes the call to the historical global functions. Additionally,
 * execute() also checks if the user has the necessary access privileges
 * and bails out if not.
 *
 * To add a core special page, use the similar static list in
 * SpecialPageFactory::$list. To remove a core static special page at runtime, use
 * a SpecialPage_initList hook.
 *
 * @ingroup SpecialPage
 * @since 1.17
 */
class SpecialPageFactory {
	use DebugInfoTrait;

	/**
	 * List of special page names to the subclass of SpecialPage which handles them.
	 */
	private const CORE_LIST = [
		// Maintenance Reports
		'BrokenRedirects' => [
			'class' => SpecialBrokenRedirects::class,
			'services' => [
				'ContentHandlerFactory',
				'ConnectionProvider',
				'LinkBatchFactory',
			]
		],
		'Deadendpages' => [
			'class' => SpecialDeadendPages::class,
			'services' => [
				'NamespaceInfo',
				'ConnectionProvider',
				'LinkBatchFactory',
				'LanguageConverterFactory',
			]
		],
		'DoubleRedirects' => [
			'class' => SpecialDoubleRedirects::class,
			'services' => [
				'ContentHandlerFactory',
				'LinkBatchFactory',
				'ConnectionProvider',
			]
		],
		'Longpages' => [
			'class' => SpecialLongPages::class,
			'services' => [
				// Same as for Shortpages
				'NamespaceInfo',
				'ConnectionProvider',
				'LinkBatchFactory',
			]
		],
		'Ancientpages' => [
			'class' => SpecialAncientPages::class,
			'services' => [
				'NamespaceInfo',
				'ConnectionProvider',
				'LinkBatchFactory',
				'LanguageConverterFactory',
			]
		],
		'Lonelypages' => [
			'class' => SpecialLonelyPages::class,
			'services' => [
				'NamespaceInfo',
				'ConnectionProvider',
				'LinkBatchFactory',
				'LanguageConverterFactory',
				'LinksMigration',
			]
		],
		'Fewestrevisions' => [
			'class' => SpecialFewestRevisions::class,
			'services' => [
				// Same as for Mostrevisions
				'NamespaceInfo',
				'ConnectionProvider',
				'LinkBatchFactory',
				'LanguageConverterFactory',
			]
		],
		'Withoutinterwiki' => [
			'class' => SpecialWithoutInterwiki::class,
			'services' => [
				'NamespaceInfo',
				'ConnectionProvider',
				'LinkBatchFactory',
				'LanguageConverterFactory',
			]
		],
		'Protectedpages' => [
			'class' => SpecialProtectedPages::class,
			'services' => [
				'LinkBatchFactory',
				'ConnectionProvider',
				'CommentStore',
				'RowCommentFormatter',
				'RestrictionStore',
			]
		],
		'Protectedtitles' => [
			'class' => SpecialProtectedTitles::class,
			'services' => [
				'LinkBatchFactory',
				'ConnectionProvider',
			]
		],
		'Shortpages' => [
			'class' => SpecialShortPages::class,
			'services' => [
				// Same as for Longpages
				'NamespaceInfo',
				'ConnectionProvider',
				'LinkBatchFactory',
			]
		],
		'Uncategorizedcategories' => [
			'class' => SpecialUncategorizedCategories::class,
			'services' => [
				// Same as for SpecialUncategorizedPages and SpecialUncategorizedTemplates
				'NamespaceInfo',
				'ConnectionProvider',
				'LinkBatchFactory',
				'LanguageConverterFactory',
			]
		],
		'Uncategorizedimages' => [
			'class' => SpecialUncategorizedImages::class,
			'services' => [
				'ConnectionProvider',
			]
		],
		'Uncategorizedpages' => [
			'class' => SpecialUncategorizedPages::class,
			'services' => [
				// Same as for SpecialUncategorizedCategories and SpecialUncategorizedTemplates
				'NamespaceInfo',
				'ConnectionProvider',
				'LinkBatchFactory',
				'LanguageConverterFactory',
			]
		],
		'Uncategorizedtemplates' => [
			'class' => SpecialUncategorizedTemplates::class,
			'services' => [
				// Same as for SpecialUncategorizedCategories and SpecialUncategorizedPages
				'NamespaceInfo',
				'ConnectionProvider',
				'LinkBatchFactory',
				'LanguageConverterFactory',
			]
		],
		'Unusedcategories' => [
			'class' => SpecialUnusedCategories::class,
			'services' => [
				'ConnectionProvider',
				'LinkBatchFactory',
			]
		],
		'Unusedimages' => [
			'class' => SpecialUnusedImages::class,
			'services' => [
				'ConnectionProvider',
			]
		],
		'Unusedtemplates' => [
			'class' => SpecialUnusedTemplates::class,
			'services' => [
				'ConnectionProvider',
				'LinksMigration',
			]
		],
		'Unwatchedpages' => [
			'class' => SpecialUnwatchedPages::class,
			'services' => [
				'LinkBatchFactory',
				'ConnectionProvider',
				'LanguageConverterFactory',
			]
		],
		'Wantedcategories' => [
			'class' => SpecialWantedCategories::class,
			'services' => [
				'ConnectionProvider',
				'LinkBatchFactory',
				'LanguageConverterFactory',
				'LinksMigration',
			]
		],
		'Wantedfiles' => [
			'class' => SpecialWantedFiles::class,
			'services' => [
				'RepoGroup',
				'ConnectionProvider',
				'LinkBatchFactory',
			]
		],
		'Wantedpages' => [
			'class' => SpecialWantedPages::class,
			'services' => [
				'ConnectionProvider',
				'LinkBatchFactory',
				'LinksMigration',
			]
		],
		'Wantedtemplates' => [
			'class' => SpecialWantedTemplates::class,
			'services' => [
				'ConnectionProvider',
				'LinkBatchFactory',
				'LinksMigration',
			]
		],

		// List of pages
		'Allpages' => [
			'class' => SpecialAllPages::class,
			'services' => [
				'ConnectionProvider',
				'SearchEngineFactory',
				'PageStore',
			]
		],
		'Prefixindex' => [
			'class' => SpecialPrefixIndex::class,
			'services' => [
				'ConnectionProvider',
				'LinkCache',
			]
		],
		'Categories' => [
			'class' => SpecialCategories::class,
			'services' => [
				'LinkBatchFactory',
				'ConnectionProvider',
			]
		],
		'Listredirects' => [
			'class' => SpecialListRedirects::class,
			'services' => [
				'LinkBatchFactory',
				'ConnectionProvider',
				'WikiPageFactory',
				'RedirectLookup'
			]
		],
		'PagesWithProp' => [
			'class' => SpecialPagesWithProp::class,
			'services' => [
				'ConnectionProvider',
			]
		],
		'TrackingCategories' => [
			'class' => SpecialTrackingCategories::class,
			'services' => [
				'LinkBatchFactory',
				'TrackingCategories',
			]
		],

		// Authentication
		'Userlogin' => [
			'class' => SpecialUserLogin::class,
			'services' => [
				'AuthManager',
				'UserIdentityUtils',
			]
		],
		'Userlogout' => [
			'class' => SpecialUserLogout::class,
			'services' => [
				'TempUserConfig',
			],
		],
		'CreateAccount' => [
			'class' => SpecialCreateAccount::class,
			'services' => [
				'AuthManager',
				'FormatterFactory',
				'UserIdentityUtils',
			]
		],
		'LinkAccounts' => [
			'class' => SpecialLinkAccounts::class,
			'services' => [
				'AuthManager',
			]
		],
		'UnlinkAccounts' => [
			'class' => SpecialUnlinkAccounts::class,
			'services' => [
				'AuthManager',
				'SessionManager',
			]
		],
		'ChangeCredentials' => [
			'class' => SpecialChangeCredentials::class,
			'services' => [
				'AuthManager',
				'SessionManager',
			]
		],
		'RemoveCredentials' => [
			'class' => SpecialRemoveCredentials::class,
			'services' => [
				'AuthManager',
				'SessionManager',
			]
		],
		'AuthenticationPopupSuccess' => [
			'class' => SpecialAuthenticationPopupSuccess::class,
			'services' => [
				'SkinFactory',
			]
		],

		// Users and rights
		'Activeusers' => [
			'class' => SpecialActiveUsers::class,
			'services' => [
				'LinkBatchFactory',
				'ConnectionProvider',
				'UserGroupManager',
				'UserIdentityLookup',
				'HideUserUtils',
				'TempUserConfig',
				'RecentChangeLookup',
			]
		],
		'Block' => [
			'class' => SpecialBlock::class,
			'services' => [
				'BlockTargetFactory',
				'BlockPermissionCheckerFactory',
				'BlockUserFactory',
				'DatabaseBlockStore',
				'UserNameUtils',
				'UserNamePrefixSearch',
				'BlockActionInfo',
				'TitleFormatter',
				'NamespaceInfo',
				'UserOptionsLookup',
				'WatchlistManager'
			]
		],
		'Unblock' => [
			'class' => SpecialUnblock::class,
			'services' => [
				'UnblockUserFactory',
				'BlockTargetFactory',
				'DatabaseBlockStore',
				'UserNameUtils',
				'UserNamePrefixSearch',
				'WatchlistManager',
			]
		],
		'BlockList' => [
			'class' => SpecialBlockList::class,
			'services' => [
				'LinkBatchFactory',
				'DatabaseBlockStore',
				'BlockRestrictionStore',
				'ConnectionProvider',
				'CommentStore',
				'BlockTargetFactory',
				'HideUserUtils',
				'BlockActionInfo',
				'RowCommentFormatter',
				'TempUserConfig',
			],
		],
		'AutoblockList' => [
			'class' => SpecialAutoblockList::class,
			'services' => [
				'LinkBatchFactory',
				'BlockRestrictionStore',
				'ConnectionProvider',
				'CommentStore',
				'BlockTargetFactory',
				'HideUserUtils',
				'BlockActionInfo',
				'RowCommentFormatter',
			],
		],
		'ChangePassword' => [
			'class' => SpecialChangePassword::class,
		],
		'BotPasswords' => [
			'class' => SpecialBotPasswords::class,
			'services' => [
				'PasswordFactory',
				'AuthManager',
				'CentralIdLookup',
				'GrantsInfo',
				'GrantsLocalization',
			]
		],
		'PasswordReset' => [
			'class' => SpecialPasswordReset::class,
			'services' => [
				'PasswordReset'
			]
		],
		'DeletedContributions' => [
			'class' => SpecialDeletedContributions::class,
			'services' => [
				'PermissionManager',
				'ConnectionProvider',
				'RevisionStore',
				'NamespaceInfo',
				'UserNameUtils',
				'UserNamePrefixSearch',
				'UserOptionsLookup',
				'CommentFormatter',
				'LinkBatchFactory',
				'UserFactory',
				'UserIdentityLookup',
				'DatabaseBlockStore',
				'UserGroupAssignmentService',
				'TempUserConfig',
			]
		],
		'Preferences' => [
			'class' => SpecialPreferences::class,
			'services' => [
				'PreferencesFactory',
				'UserOptionsManager',
			]
		],
		'ResetTokens' => [
			'class' => SpecialResetTokens::class,
		],
		'Contributions' => [
			'class' => SpecialContributions::class,
			'services' => [
				'LinkBatchFactory',
				'PermissionManager',
				'ConnectionProvider',
				'RevisionStore',
				'NamespaceInfo',
				'UserNameUtils',
				'UserNamePrefixSearch',
				'UserOptionsLookup',
				'CommentFormatter',
				'UserFactory',
				'UserIdentityLookup',
				'DatabaseBlockStore',
				'UserGroupAssignmentService',
				'TempUserConfig',
			]
		],
		'Listgrouprights' => [
			'class' => SpecialListGroupRights::class,
			'services' => [
				'NamespaceInfo',
				'UserGroupManager',
				'LanguageConverterFactory',
				'GroupPermissionsLookup',
			]
		],
		'Listgrants' => [
			'class' => SpecialListGrants::class,
			'services' => [
				'GrantsLocalization',
			]
		],
		'Listusers' => [
			'class' => SpecialListUsers::class,
			'services' => [
				'LinkBatchFactory',
				'ConnectionProvider',
				'UserGroupManager',
				'UserIdentityLookup',
				'HideUserUtils',
				'TempUserConfig',
			]
		],
		'Listadmins' => [
			'class' => SpecialListAdmins::class,
		],
		'Listbots' => [
			'class' => SpecialListBots::class,
		],
		'Userrights' => [
			'class' => SpecialUserRights::class,
			'services' => [
				'UserGroupManagerFactory',
				'UserNameUtils',
				'UserNamePrefixSearch',
				'UserFactory',
				'WatchlistManager',
				'UserGroupAssignmentService',
				'MultiFormatUserIdentityLookup',
				'FormatterFactory',
			]
		],
		'EditWatchlist' => [
			'class' => SpecialEditWatchlist::class,
			'services' => [
				'WatchedItemStore',
				'TitleParser',
				'GenderCache',
				'LinkBatchFactory',
				'NamespaceInfo',
				'WikiPageFactory',
				'WatchlistManager',
			]
		],
		'PasswordPolicies' => [
			'class' => SpecialPasswordPolicies::class,
			'services' => [
				'UserGroupManager',
			]
		],

		// Recent changes and logs
		'Newimages' => [
			'class' => SpecialNewFiles::class,
			'services' => [
				'MimeAnalyzer',
				'GroupPermissionsLookup',
				'ConnectionProvider',
				'LinkBatchFactory',
			]
		],
		'Log' => [
			'class' => SpecialLog::class,
			'services' => [
				'LinkBatchFactory',
				'ConnectionProvider',
				'ActorNormalization',
				'UserIdentityLookup',
				'UserNameUtils',
				'LogFormatterFactory',
				'TempUserConfig',
			]
		],
		'Watchlist' => [
			'class' => SpecialWatchlist::class,
			'services' => [
				'WatchedItemStore',
				'WatchlistManager',
				'UserOptionsLookup',
				'UserIdentityUtils',
				'TempUserConfig',
				'RecentChangeFactory',
				'ChangesListQueryFactory',
			]
		],
		'Newpages' => [
			'class' => SpecialNewPages::class,
			'services' => [
				'LinkBatchFactory',
				'ContentHandlerFactory',
				'GroupPermissionsLookup',
				'RevisionLookup',
				'NamespaceInfo',
				'UserOptionsLookup',
				'RowCommentFormatter',
				'ChangeTagsStore',
				'TempUserConfig',
			]
		],
		'Recentchanges' => [
			'class' => SpecialRecentChanges::class,
			'services' => [
				'WatchedItemStore',
				'MessageParser',
				'UserOptionsLookup',
				'UserIdentityUtils',
				'TempUserConfig',
				'RecentChangeFactory',
				'ChangesListQueryFactory',
			]
		],
		'Recentchangeslinked' => [
			'class' => SpecialRecentChangesLinked::class,
			'services' => [
				'WatchedItemStore',
				'MessageParser',
				'UserOptionsLookup',
				'SearchEngineFactory',
				'UserIdentityUtils',
				'TempUserConfig',
				'RecentChangeFactory',
				'ChangesListQueryFactory',
			]
		],
		'Tags' => [
			'class' => SpecialTags::class,
			'services' => [
				'ChangeTagsStore',
			]
		],

		// Media reports and uploads
		'Listfiles' => [
			'class' => SpecialListFiles::class,
			'services' => [
				'RepoGroup',
				'ConnectionProvider',
				'CommentStore',
				'UserNameUtils',
				'UserNamePrefixSearch',
				'RowCommentFormatter',
				'LinkBatchFactory',
			]
		],
		'Filepath' => [
			'class' => SpecialFilepath::class,
			'services' => [
				'SearchEngineFactory',
			]
		],
		'MediaStatistics' => [
			'class' => SpecialMediaStatistics::class,
			'services' => [
				'MimeAnalyzer',
				'ConnectionProvider',
				'LinkBatchFactory',
			]
		],
		'MIMEsearch' => [
			'class' => SpecialMIMESearch::class,
			'services' => [
				'ConnectionProvider',
				'LinkBatchFactory',
				'LanguageConverterFactory',
			]
		],
		'FileDuplicateSearch' => [
			'class' => SpecialFileDuplicateSearch::class,
			'services' => [
				'LinkBatchFactory',
				'RepoGroup',
				'SearchEngineFactory',
				'LanguageConverterFactory',
			]
		],
		'Upload' => [
			'class' => SpecialUpload::class,
			'services' => [
				'RepoGroup',
				'UserOptionsLookup',
				'NamespaceInfo',
			]
		],
		'UploadStash' => [
			'class' => SpecialUploadStash::class,
			'services' => [
				'RepoGroup',
				'HttpRequestFactory',
				'UrlUtils',
				'ConnectionProvider',
			]
		],
		'ListDuplicatedFiles' => [
			'class' => SpecialListDuplicatedFiles::class,
			'services' => [
				'ConnectionProvider',
				'LinkBatchFactory',
			]
		],

		// Data and tools
		'ApiSandbox' => [
			'class' => SpecialApiSandbox::class,
		],
		'Interwiki' => [
			'class' => SpecialInterwiki::class,
			'services' => [
				'ContentLanguage',
				'InterwikiLookup',
				'LanguageNameUtils',
				'UrlUtils',
				'ConnectionProvider',
			]
		],
		'Statistics' => [
			'class' => SpecialStatistics::class,
			'services' => [
				'UserGroupManager',
			]
		],
		'Allmessages' => [
			'class' => SpecialAllMessages::class,
			'services' => [
				'LanguageFactory',
				'LanguageNameUtils',
				'LocalisationCache',
				'ConnectionProvider',
			]
		],
		'Version' => [
			'class' => SpecialVersion::class,
			'services' => [
				'ParserFactory',
				'UrlUtils',
				'ConnectionProvider',
			]
		],
		'Lockdb' => [
			'class' => SpecialLockdb::class,
		],
		'Unlockdb' => [
			'class' => SpecialUnlockdb::class,
		],
		'NamespaceInfo' => [
			'class' => SpecialNamespaceInfo::class,
			'services' => [
				'NamespaceInfo',
			],
		],

		// Redirecting special pages
		'LinkSearch' => [
			'class' => SpecialLinkSearch::class,
			'services' => [
				'ConnectionProvider',
				'LinkBatchFactory',
				'UrlUtils',
			]
		],
		'Randompage' => [
			'class' => SpecialRandomPage::class,
			'services' => [
				'ConnectionProvider',
				'NamespaceInfo',
			]
		],
		'RandomInCategory' => [
			'class' => SpecialRandomInCategory::class,
			'services' => [
				'ConnectionProvider',
			]
		],
		'Randomredirect' => [
			'class' => SpecialRandomRedirect::class,
			'services' => [
				'ConnectionProvider',
				'NamespaceInfo',
			]
		],
		'Randomrootpage' => [
			'class' => SpecialRandomRootPage::class,
			'services' => [
				'ConnectionProvider',
				'NamespaceInfo',
			]
		],
		'GoToInterwiki' => [
			'class' => SpecialGoToInterwiki::class,
		],

		// High use pages
		'Mostlinkedcategories' => [
			'class' => SpecialMostLinkedCategories::class,
			'services' => [
				'ConnectionProvider',
				'LinkBatchFactory',
				'LanguageConverterFactory',
			]
		],
		'Mostimages' => [
			'class' => SpecialMostImages::class,
			'services' => [
				'ConnectionProvider',
				'LanguageConverterFactory',
			]
		],
		'Mostinterwikis' => [
			'class' => SpecialMostInterwikis::class,
			'services' => [
				'NamespaceInfo',
				'ConnectionProvider',
				'LinkBatchFactory',
			]
		],
		'Mostlinked' => [
			'class' => SpecialMostLinked::class,
			'services' => [
				'ConnectionProvider',
				'LinkBatchFactory',
				'LinksMigration',
			]
		],
		'Mostlinkedtemplates' => [
			'class' => SpecialMostLinkedTemplates::class,
			'services' => [
				'ConnectionProvider',
				'LinkBatchFactory',
				'LinksMigration',
			]
		],
		'Mostcategories' => [
			'class' => SpecialMostCategories::class,
			'services' => [
				'NamespaceInfo',
				'ConnectionProvider',
				'LinkBatchFactory',
			]
		],
		'Mostrevisions' => [
			'class' => SpecialMostRevisions::class,
			'services' => [
				// Same as for Fewestrevisions
				'NamespaceInfo',
				'ConnectionProvider',
				'LinkBatchFactory',
				'LanguageConverterFactory',
			]
		],

		// Page tools
		'ComparePages' => [
			'class' => SpecialComparePages::class,
			'services' => [
				'RevisionLookup',
				'ContentHandlerFactory',
			]
		],
		'Export' => [
			'class' => SpecialExport::class,
			'services' => [
				'ConnectionProvider',
				'WikiExporterFactory',
				'TitleFormatter',
				'LinksMigration',
			]
		],
		'Import' => [
			'class' => SpecialImport::class,
			'services' => [
				'WikiImporterFactory',
			]
		],
		'Undelete' => [
			'class' => SpecialUndelete::class,
			'services' => [
				'PermissionManager',
				'RevisionStore',
				'RevisionRenderer',
				'ContentHandlerFactory',
				'ChangeTagDefStore',
				'LinkBatchFactory',
				'RepoGroup',
				'ConnectionProvider',
				'UserOptionsLookup',
				'WikiPageFactory',
				'SearchEngineFactory',
				'UndeletePageFactory',
				'ArchivedRevisionLookup',
				'CommentFormatter',
				'WatchlistManager',
			],
		],
		'Whatlinkshere' => [
			'class' => SpecialWhatLinksHere::class,
			'services' => [
				'ConnectionProvider',
				'LinkBatchFactory',
				'ContentHandlerFactory',
				'SearchEngineFactory',
				'NamespaceInfo',
				'TitleFactory',
				'LinksMigration',
			]
		],
		'MergeHistory' => [
			'class' => SpecialMergeHistory::class,
			'services' => [
				'MergeHistoryFactory',
				'LinkBatchFactory',
				'ConnectionProvider',
				'RevisionStore',
				'CommentFormatter',
				'ChangeTagsStore',
			]
		],
		'ExpandTemplates' => [
			'class' => SpecialExpandTemplates::class,
			'services' => [
				'ParserFactory',
				'UserOptionsLookup',
				'Tidy',
			],
		],
		'ChangeContentModel' => [
			'class' => SpecialChangeContentModel::class,
			'services' => [
				'ContentHandlerFactory',
				'ContentModelChangeFactory',
				'SpamChecker',
				'RevisionLookup',
				'WikiPageFactory',
				'SearchEngineFactory',
				'CollationFactory',
			],
		],

		// Other
		'Booksources' => [
			'class' => SpecialBookSources::class,
			'services' => [
				'RevisionLookup',
				'TitleFactory',
			]
		],

		// Unlisted / redirects
		'ApiHelp' => [
			'class' => SpecialApiHelp::class,
			'services' => [
				'UrlUtils',
			]
		],
		'Blankpage' => [
			'class' => SpecialBlankpage::class,
		],
		'DeletePage' => [
			'class' => SpecialDeletePage::class,
			'services' => [
				'SearchEngineFactory',
			]
		],
		'Diff' => [
			'class' => SpecialDiff::class,
		],
		'EditPage' => [
			'class' => SpecialEditPage::class,
			'services' => [
				'SearchEngineFactory',
			]
		],
		'EditTags' => [
			'class' => SpecialEditTags::class,
			'services' => [
				'PermissionManager',
				'ChangeTagsStore',
			],
		],
		'Emailuser' => [
			'class' => SpecialEmailUser::class,
			'services' => [
				'UserNameUtils',
				'UserNamePrefixSearch',
				'UserOptionsLookup',
				'EmailUserFactory',
				'UserFactory',
			]
		],
		'Movepage' => [
			'class' => SpecialMovePage::class,
			'services' => [
				'MovePageFactory',
				'PermissionManager',
				'UserOptionsLookup',
				'ConnectionProvider',
				'ContentHandlerFactory',
				'NamespaceInfo',
				'LinkBatchFactory',
				'RepoGroup',
				'WikiPageFactory',
				'SearchEngineFactory',
				'WatchlistManager',
				'WatchedItemStore',
				'RestrictionStore',
				'TitleFactory',
				'DeletePageFactory',
			]
		],
		'Mycontributions' => [
			'class' => SpecialMycontributions::class,
			'services' => [
				'TempUserConfig',
			],
		],
		'MyLanguage' => [
			'class' => SpecialMyLanguage::class,
			'services' => [
				'LanguageNameUtils',
				'RedirectLookup'
			]
		],
		'Mylog' => [
			'class' => SpecialMylog::class,
			'services' => [
				'TempUserConfig',
			],
		],
		'Mypage' => [
			'class' => SpecialMypage::class,
			'services' => [
				'TempUserConfig',
			],
		],
		'Mytalk' => [
			'class' => SpecialMytalk::class,
			'services' => [
				'TempUserConfig',
				'TempUserCreator',
				'AuthManager',
			],
		],
		'PageHistory' => [
			'class' => SpecialPageHistory::class,
			'services' => [
				'SearchEngineFactory',
			]
		],
		'PageInfo' => [
			'class' => SpecialPageInfo::class,
			'services' => [
				'SearchEngineFactory',
			]
		],
		'ProtectPage' => [
			'class' => SpecialProtectPage::class,
			'services' => [
				'SearchEngineFactory',
			]
		],
		'Purge' => [
			'class' => SpecialPurge::class,
			'services' => [
				'SearchEngineFactory',
			]
		],
		'Myuploads' => [
			'class' => SpecialMyuploads::class,
			'services' => [
				'TempUserConfig',
			],
		],
		'AllMyUploads' => [
			'class' => SpecialAllMyUploads::class,
			'services' => [
				'TempUserConfig',
			],
		],
		'NewSection' => [
			'class' => SpecialNewSection::class,
			'services' => [
				'SearchEngineFactory',
			]
		],
		'PermanentLink' => [
			'class' => SpecialPermanentLink::class,
		],
		'Redirect' => [
			'class' => SpecialRedirect::class,
			'services' => [
				'RepoGroup',
				'UserFactory',
			]
		],
		'Renameuser' => [
			'class' => SpecialRenameUser::class,
			'services' => [
				'ConnectionProvider',
				'PermissionManager',
				'TitleFactory',
				'UserFactory',
				'UserNamePrefixSearch',
				'RenameUserFactory',
			]
		],
		'Revisiondelete' => [
			'class' => SpecialRevisionDelete::class,
			'services' => [
				'PermissionManager',
				'RepoGroup',
			],
		],
		'RunJobs' => [
			'class' => SpecialRunJobs::class,
			'services' => [
				'JobRunner',
				'ReadOnlyMode',
			]
		],
		'Specialpages' => [
			'class' => SpecialSpecialPages::class,
		],
		'PageData' => [
			'class' => SpecialPageData::class,
		],
		'Contribute' => [
			'class' => SpecialContribute::class,
		],
		'TalkPage' => [
			'class' => SpecialTalkPage::class,
			'services' => [
				'TitleParser',
			],
		],
	];

	/** @var array Special page name => class name */
	private $list;

	/** @var array */
	private $aliases;

	/** @var ServiceOptions */
	private $options;

	/** @var Language */
	private $contLang;

	/**
	 * @var ObjectFactory
	 * @noVarDump
	 */
	private $objectFactory;

	/**
	 * @var HookContainer
	 * @noVarDump
	 */
	private $hookContainer;

	/**
	 * @var HookRunner
	 * @noVarDump
	 */
	private $hookRunner;

	/**
	 * @var TitleFactory
	 */
	private $titleFactory;

	private StatsFactory $statsFactory;

	/**
	 * @internal For use by ServiceWiring
	 */
	public const CONSTRUCTOR_OPTIONS = [
		MainConfigNames::DisableInternalSearch,
		MainConfigNames::EmailAuthentication,
		MainConfigNames::EnableEmail,
		MainConfigNames::EnableJavaScriptTest,
		MainConfigNames::EnableSpecialMute,
		MainConfigNames::EnableEditRecovery,
		MainConfigNames::PageLanguageUseDB,
		MainConfigNames::SpecialPages,
	];

	/**
	 * @param ServiceOptions $options
	 * @param Language $contLang
	 * @param ObjectFactory $objectFactory
	 * @param TitleFactory $titleFactory
	 * @param HookContainer $hookContainer
	 * @param StatsFactory $statsFactory
	 */
	public function __construct(
		ServiceOptions $options,
		Language $contLang,
		ObjectFactory $objectFactory,
		TitleFactory $titleFactory,
		HookContainer $hookContainer,
		StatsFactory $statsFactory,
	) {
		$options->assertRequiredOptions( self::CONSTRUCTOR_OPTIONS );
		$this->options = $options;
		$this->contLang = $contLang;
		$this->objectFactory = $objectFactory;
		$this->titleFactory = $titleFactory;
		$this->hookContainer = $hookContainer;
		$this->hookRunner = new HookRunner( $hookContainer );
		$this->statsFactory = $statsFactory;
	}

	/**
	 * Returns a list of canonical special page names.
	 * May be used to iterate over all registered special pages.
	 *
	 * @return string[]
	 */
	public function getNames(): array {
		return array_keys( $this->getPageList() );
	}

	/**
	 * Get the special page list as an array
	 */
	private function getPageList(): array {
		if ( !is_array( $this->list ) ) {
			$this->list = self::CORE_LIST;

			if ( !$this->options->get( MainConfigNames::DisableInternalSearch ) ) {
				$this->list['Search'] = [
					'class' => SpecialSearch::class,
					'services' => [
						'SearchEngineConfig',
						'SearchEngineFactory',
						'NamespaceInfo',
						'ContentHandlerFactory',
						'InterwikiLookup',
						'ReadOnlyMode',
						'UserOptionsManager',
						'LanguageConverterFactory',
						'RepoGroup',
						'SearchResultThumbnailProvider',
						'TitleMatcher',
					]
				];
			}

			if ( $this->options->get( MainConfigNames::EmailAuthentication ) ) {
				$this->list['Confirmemail'] = [
					'class' => SpecialConfirmEmail::class,
					'services' => [
						'UserFactory',
					]
				];
				$this->list['Invalidateemail'] = [
					'class' => SpecialEmailInvalidate::class,
					'services' => [
						'UserFactory',
					]
				];
			}

			if ( $this->options->get( MainConfigNames::EnableEmail ) ) {
				$this->list['ChangeEmail'] = [
					'class' => SpecialChangeEmail::class,
					'services' => [
						'AuthManager',
					],
				];
			}

			if ( $this->options->get( MainConfigNames::EnableJavaScriptTest ) ) {
				$this->list['JavaScriptTest'] = [
					'class' => SpecialJavaScriptTest::class
				];
			}

			if ( $this->options->get( MainConfigNames::EnableSpecialMute ) ) {
				$this->list['Mute'] = [
					'class' => SpecialMute::class,
					'services' => [
						'CentralIdLookup',
						'UserOptionsManager',
						'UserIdentityLookup',
						'UserIdentityUtils',
					]
				];
			}

			if ( $this->options->get( MainConfigNames::PageLanguageUseDB ) ) {
				$this->list['PageLanguage'] = [
					'class' => SpecialPageLanguage::class,
					'services' => [
						'ContentHandlerFactory',
						'LanguageNameUtils',
						'ConnectionProvider',
						'SearchEngineFactory',
					]
				];
			}

			if ( $this->options->get( MainConfigNames::EnableEditRecovery ) ) {
				$this->list['EditRecovery'] = [
					'class' => SpecialEditRecovery::class,
					'services' => [
						'UserOptionsLookup',
					],
				];
			}

			// Add extension special pages
			$this->list = array_merge( $this->list,
				$this->options->get( MainConfigNames::SpecialPages ) );

			// This hook can be used to disable unwanted core special pages
			// or conditionally register special pages.
			$this->hookRunner->onSpecialPage_initList( $this->list );
		}

		return $this->list;
	}

	/**
	 * Initialise and return the list of special page aliases. Returns an array where
	 * the key is an alias, and the value is the canonical name of the special page.
	 * All registered special pages are guaranteed to map to themselves.
	 */
	public function getAliasList(): array {
		if ( $this->aliases === null ) {
			$aliases = $this->contLang->getSpecialPageAliases();
			$pageList = $this->getPageList();

			$this->aliases = [];
			$keepAlias = [];

			// Force every canonical name to be an alias for itself.
			foreach ( $pageList as $name => $stuff ) {
				$caseFoldedAlias = $this->contLang->caseFold( $name );
				$this->aliases[$caseFoldedAlias] = $name;
				$keepAlias[$caseFoldedAlias] = 'canonical';
			}

			// Check for $aliases being an array since Language::getSpecialPageAliases can return null
			if ( is_array( $aliases ) ) {
				foreach ( $aliases as $realName => $aliasList ) {
					$first = true;
					foreach ( $aliasList as $alias ) {
						$caseFoldedAlias = $this->contLang->caseFold( $alias );

						if ( isset( $this->aliases[$caseFoldedAlias] ) &&
							$realName === $this->aliases[$caseFoldedAlias]
						) {
							$first = false;
							// Ignore same-realName conflicts
							continue;
						}

						if ( !isset( $keepAlias[$caseFoldedAlias] ) ) {
							$this->aliases[$caseFoldedAlias] = $realName;
							if ( $first ) {
								$keepAlias[$caseFoldedAlias] = 'first';
							}
						} elseif ( $first ) {
							wfWarn( "First alias '$alias' for $realName conflicts with " .
								"{$keepAlias[$caseFoldedAlias]} alias for " .
								$this->aliases[$caseFoldedAlias]
							);
						}
						$first = false;
					}
				}
			}
		}

		return $this->aliases;
	}

	/**
	 * Given a special page name with a possible subpage, return an array
	 * where the first element is the special page name and the second is the
	 * subpage.
	 *
	 * @param string $alias
	 * @return array [ String, String|null ], or [ null, null ] if the page is invalid
	 */
	public function resolveAlias( $alias ) {
		$bits = explode( '/', $alias, 2 );

		$caseFoldedAlias = $this->contLang->caseFold( $bits[0] );
		$caseFoldedAlias = str_replace( ' ', '_', $caseFoldedAlias );
		$aliases = $this->getAliasList();
		if ( !isset( $aliases[$caseFoldedAlias] ) ) {
			return [ null, null ];
		}
		$name = $aliases[$caseFoldedAlias];
		$par = $bits[1] ?? null; // T4087

		return [ $name, $par ];
	}

	/**
	 * Check if a given name exist as a special page or as a special page alias
	 *
	 * @param string $name Name of a special page
	 * @return bool True if a special page exists with this name
	 */
	public function exists( $name ) {
		[ $title, ] = $this->resolveAlias( $name );

		$specialPageList = $this->getPageList();
		return $title !== null && isset( $specialPageList[$title] );
	}

	/**
	 * Find the object with a given name and return it (or NULL)
	 *
	 * @param string $name Special page name, may be localised and/or an alias
	 * @return SpecialPage|null SpecialPage object or null if the page doesn't exist
	 */
	public function getPage( $name ) {
		[ $realName, ] = $this->resolveAlias( $name );

		$specialPageList = $this->getPageList();

		if ( $realName !== null && isset( $specialPageList[$realName] ) ) {
			$rec = $specialPageList[$realName];

			if ( is_array( $rec ) || is_string( $rec ) || is_callable( $rec ) ) {
				$page = $this->objectFactory->createObject(
					$rec,
					[
						'allowClassName' => true,
						'allowCallable' => true
					]
				);
			} else {
				$page = null;
			}

			if ( $page instanceof SpecialPage ) {
				$page->setHookContainer( $this->hookContainer );
				$page->setContentLanguage( $this->contLang );
				$page->setSpecialPageFactory( $this );
				return $page;
			}

			// It's not a classname, nor a callback, nor a legacy constructor array,
			// nor a special page object. Give up.
			wfLogWarning( "Cannot instantiate special page $realName: bad spec!" );
		}

		return null;
	}

	/**
	 * Get listed special pages available to the current user.
	 *
	 * This includes both unrestricted pages, and restricted pages
	 * that the current user has the required permissions for.
	 *
	 * @param User $user User object to check permissions provided
	 * @param IContextSource|null $context Context object, since 1.45
	 * @return SpecialPage[]
	 */
	public function getUsablePages( User $user, ?IContextSource $context = null ): array {
		$pages = [];
		$context ??= RequestContext::getMain();
		foreach ( $this->getPageList() as $name => $rec ) {
			$page = $this->getPage( $name );
			if ( $page ) { // not null
				$page->setContext( $context );
				if ( $page->isListed()
					&& ( !$page->isRestricted() || $page->userCanExecute( $user ) )
				) {
					$pages[$name] = $page;
				}
			}
		}

		return $pages;
	}

	/**
	 * Get listed special pages, including those that may require user rights.
	 *
	 * @since 1.42
	 * @return array<string,SpecialPage>
	 */
	public function getListedPages(): array {
		$pages = [];
		foreach ( $this->getPageList() as $name => $rec ) {
			$page = $this->getPage( $name );
			if ( $page && $page->isListed() ) {
				$pages[$name] = $page;
			}
		}
		return $pages;
	}

	/**
	 * Execute a special page path.
	 * The path may contain parameters, e.g. Special:Name/Params
	 * Extracts the special page name and call the execute method, passing the parameters
	 *
	 * Returns a title object if the page is redirected, false if there was no such special
	 * page, and true if it was successful.
	 *
	 * @param PageReference|string $path
	 * @param IContextSource $context
	 * @param bool $including Bool output is being captured for use in {{special:whatever}}
	 * @param LinkRenderer|null $linkRenderer (since 1.28)
	 *
	 * @return bool|Title
	 */
	public function executePath( $path, IContextSource $context, $including = false,
		?LinkRenderer $linkRenderer = null
	) {
		if ( $path instanceof PageReference ) {
			$path = $path->getDBkey();
		}

		$bits = explode( '/', $path, 2 );
		$name = $bits[0];
		$par = $bits[1] ?? null; // T4087

		$page = $this->getPage( $name );
		if ( !$page ) {
			// Emulate SpecialPage::setHeaders()
			$context->getOutput()->setArticleRelated( false );
			$context->getOutput()->setRobotPolicy( 'noindex,nofollow' );

			if ( $context->getConfig()->get( MainConfigNames::Send404Code ) ) {
				$context->getOutput()->setStatusCode( 404 );
			}

			$context->getOutput()->showErrorPage( 'nosuchspecialpage', 'nospecialpagetext' );

			return false;
		}

		if ( !$including ) {
			ProfilingContext::singleton()->init( MW_ENTRY_POINT, $page->getName() );
			// Narrow DB query expectations for this HTTP request
			$trxLimits = $context->getConfig()->get( MainConfigNames::TrxProfilerLimits );
			$trxProfiler = Profiler::instance()->getTransactionProfiler();
			if ( $context->getRequest()->wasPosted() && !$page->doesWrites() ) {
				$trxProfiler->setExpectations( $trxLimits['POST-nonwrite'], __METHOD__ );
			}
		}

		// Page exists, set the context
		$page->setContext( $context );

		if ( !$including ) {
			// Redirect to canonical alias for GET commands
			// Not for POST, we'd lose the post data, so it's best to just distribute
			// the request. Such POST requests are possible for old extensions that
			// generate self-links without being aware that their default name has
			// changed.
			if ( $name != $page->getLocalName() && !$context->getRequest()->wasPosted() ) {
				$query = $context->getRequest()->getQueryValues();
				unset( $query['title'] );
				$title = $page->getPageTitle( $par ?? false );
				$url = $title->getFullURL( $query );
				$context->getOutput()->redirect( $url );

				return $title;
			}

			// @phan-suppress-next-line PhanUndeclaredMethod
			$context->setTitle( $page->getPageTitle( $par ?? false ) );
		} elseif ( !$page->isIncludable() ) {
			return false;
		}

		$page->including( $including );
		if ( $linkRenderer ) {
			$page->setLinkRenderer( $linkRenderer );
		}

		$timer = $including ? null : $this->statsFactory
			->getTiming( 'special_executeTiming_seconds' )
			->setLabel( 'special', $page->getName() )
			->start();

		// Execute special page
		$page->run( $par );

		$timer?->stop();

		return true;
	}

	/**
	 * Just like executePath() but will override global variables and execute
	 * the page in "inclusion" mode. Returns true if the execution was
	 * successful or false if there was no such special page, or a title object
	 * if it was a redirect.
	 *
	 * Also saves the current $wgTitle, $wgOut, $wgRequest, $wgUser and $wgLang
	 * variables so that the special page will get the context it'd expect on a
	 * normal request, and then restores them to their previous values after.
	 *
	 * @param PageReference $page
	 * @param IContextSource $context
	 * @param LinkRenderer|null $linkRenderer (since 1.28)
	 * @return bool|Title
	 */
	public function capturePath(
		PageReference $page, IContextSource $context, ?LinkRenderer $linkRenderer = null
	) {
		// phpcs:ignore MediaWiki.Usage.DeprecatedGlobalVariables.Deprecated$wgUser,MediaWiki.Usage.DeprecatedGlobalVariables.Deprecated$wgTitle
		global $wgTitle, $wgOut, $wgRequest, $wgUser, $wgLang;
		$main = RequestContext::getMain();

		// Save current globals and main context
		$glob = [
			'title' => $wgTitle,
			'output' => $wgOut,
			'request' => $wgRequest,
			'user' => $wgUser,
			'language' => $wgLang,
		];
		$ctx = [
			'title' => $main->getTitle(),
			'output' => $main->getOutput(),
			'request' => $main->getRequest(),
			'user' => $main->getUser(),
			'language' => $main->getLanguage(),
		];
		if ( $main->canUseWikiPage() ) {
			$ctx['wikipage'] = $main->getWikiPage();
		}

		// just needed for $wgTitle and RequestContext::setTitle
		$title = $this->titleFactory->castFromPageReference( $page );

		// Override
		$wgTitle = $title;
		$wgOut = $context->getOutput();
		$wgRequest = $context->getRequest();
		$wgUser = $context->getUser();
		$wgLang = $context->getLanguage();
		// FIXME: Once reasonably certain that no SpecialPage subclasses
		// rely on direct RequestContext::getMain instead of their local
		// context getters, these can be removed (T323184)
		// phpcs:ignore Generic.PHP.NoSilencedErrors.Discouraged
		@$main->setTitle( $title );
		$main->setOutput( $context->getOutput() );
		$main->setRequest( $context->getRequest() );
		$main->setUser( $context->getUser() );
		$main->setLanguage( $context->getLanguage() );

		try {
			// The useful part
			return $this->executePath( $page, $context, true, $linkRenderer );
		} finally {
			// Restore old globals and context
			$wgTitle = $glob['title'];
			$wgOut = $glob['output'];
			$wgRequest = $glob['request'];
			$wgUser = $glob['user'];
			$wgLang = $glob['language'];
			// phpcs:ignore Generic.PHP.NoSilencedErrors.Discouraged
			@$main->setTitle( $ctx['title'] );
			$main->setOutput( $ctx['output'] );
			$main->setRequest( $ctx['request'] );
			$main->setUser( $ctx['user'] );
			$main->setLanguage( $ctx['language'] );
			if ( isset( $ctx['wikipage'] ) ) {
				$main->setWikiPage( $ctx['wikipage'] );
			}
		}
	}

	/**
	 * Get the local name for a specified canonical name
	 *
	 * @param string $name
	 * @param string|false|null $subpage
	 * @return string
	 */
	public function getLocalNameFor( $name, $subpage = false ) {
		$aliases = $this->contLang->getSpecialPageAliases();
		$aliasList = $this->getAliasList();

		// Find the first alias that maps back to $name
		if ( isset( $aliases[$name] ) ) {
			$found = false;
			foreach ( $aliases[$name] as $alias ) {
				$caseFoldedAlias = $this->contLang->caseFold( $alias );
				$caseFoldedAlias = str_replace( ' ', '_', $caseFoldedAlias );
				if ( isset( $aliasList[$caseFoldedAlias] ) &&
					$aliasList[$caseFoldedAlias] === $name
				) {
					$name = $alias;
					$found = true;
					break;
				}
			}
			if ( !$found ) {
				wfWarn( "Did not find a usable alias for special page '$name'. " .
					"It seems all defined aliases conflict?" );
			}
		} else {
			// Check if someone misspelled the correct casing
			if ( is_array( $aliases ) ) {
				foreach ( $aliases as $n => $values ) {
					if ( strcasecmp( $name, $n ) === 0 ) {
						wfWarn( "Found alias defined for $n when searching for " .
							"special page aliases for $name. Case mismatch?" );
						return $this->getLocalNameFor( $n, $subpage );
					}
				}
			}

			wfWarn( "Did not find alias for special page '$name'. " .
				"Perhaps no aliases are defined for it?" );
		}

		if ( $subpage !== false && $subpage !== null ) {
			// Make sure it's in dbkey form
			$subpage = str_replace( ' ', '_', $subpage );
			$name = "$name/$subpage";
		}

		return $this->contLang->ucfirst( $name );
	}

	/**
	 * Get a title for a given alias
	 *
	 * @param string $alias
	 * @return Title|null Title or null if there is no such alias
	 */
	public function getTitleForAlias( $alias ) {
		[ $name, $subpage ] = $this->resolveAlias( $alias );
		if ( $name != null ) {
			return SpecialPage::getTitleFor( $name, $subpage );
		}

		return null;
	}
}
