Skin.php
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Skin.php
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	<?php
	/**
	* This program is free software; you can redistribute it and/or modify
	* it under the terms of the GNU General Public License as published by
	* the Free Software Foundation; either version 2 of the License, or
	* (at your option) any later version.
	*
	* This program is distributed in the hope that it will be useful,
	* but WITHOUT ANY WARRANTY; without even the implied warranty of
	* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
	* GNU General Public License for more details.
	*
	* You should have received a copy of the GNU General Public License along
	* with this program; if not, write to the Free Software Foundation, Inc.,
	* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
	* http://www.gnu.org/copyleft/gpl.html
	*
	* @file
	*/

	use MediaWiki\Context\ContextSource;
	use MediaWiki\Debug\MWDebug;
	use MediaWiki\HookContainer\ProtectedHookAccessorTrait;
	use MediaWiki\Html\Html;
	use MediaWiki\Language\Language;
	use MediaWiki\Language\LanguageCode;
	use MediaWiki\MainConfigNames;
	use MediaWiki\MediaWikiServices;
	use MediaWiki\Output\OutputPage;
	use MediaWiki\Parser\Sanitizer;
	use MediaWiki\ResourceLoader as RL;
	use MediaWiki\Revision\RevisionStore;
	use MediaWiki\Skin\SkinComponent;
	use MediaWiki\Skin\SkinComponentFooter;
	use MediaWiki\Skin\SkinComponentLink;
	use MediaWiki\Skin\SkinComponentListItem;
	use MediaWiki\Skin\SkinComponentMenu;
	use MediaWiki\Skin\SkinComponentRegistry;
	use MediaWiki\Skin\SkinComponentRegistryContext;
	use MediaWiki\Skin\SkinComponentUtils;
	use MediaWiki\SpecialPage\SpecialPage;
	use MediaWiki\Specials\SpecialUserRights;
	use MediaWiki\Title\Title;
	use MediaWiki\Title\TitleValue;
	use MediaWiki\User\User;
	use MediaWiki\User\UserIdentity;
	use MediaWiki\User\UserIdentityValue;
	use MediaWiki\WikiMap\WikiMap;
	use Wikimedia\ObjectCache\WANObjectCache;
	use Wikimedia\Rdbms\IDBAccessObject;

	/**
	* @defgroup Skins Skins
	*/

	/**
	* The base class for all skins.
	*
	* See docs/Skin.md for more information.
	*
	* @stable to extend
	* @ingroup Skins
	*/
	abstract class Skin extends ContextSource {
	use ProtectedHookAccessorTrait;

	/**
	* @var array link options used in Skin::makeLink. Can be set by skin option `link`.
	*/
	private $defaultLinkOptions;

	/**
	* @var string\|null
	*/
	protected $skinname = null;

	/**
	* @var array Skin options passed into constructor
	*/
	protected $options = [];
	/** @var Title\|null */
	protected $mRelevantTitle = null;

	/**
	* @var UserIdentity\|null\|false
	*/
	private $mRelevantUser = false;

	/** The current major version of the skin specification. */
	protected const VERSION_MAJOR = 1;

	/** @var array\|null Cache for getLanguages() */
	private $languageLinks;

	/** @var array\|null Cache for buildSidebar() */
	private $sidebar;

	/**
	* @var SkinComponentRegistry Initialised in constructor.
	*/
	private $componentRegistry = null;

	/**
	* Get the current major version of Skin. This is used to manage changes
	* to underlying data and for providing support for older and new versions of code.
	*
	* @since 1.36
	* @return int
	*/
	public static function getVersion() {
	return self::VERSION_MAJOR;
	}

	/**
	* @internal use in Skin.php, SkinTemplate.php or SkinMustache.php
	* @param string $name
	* @return SkinComponent
	*/
	final protected function getComponent( string $name ): SkinComponent {
	return $this->componentRegistry->getComponent( $name );
	}

	/**
	* @stable to extend. Subclasses may extend this method to add additional
	* template data.
	* @internal this method should never be called outside Skin and its subclasses
	* as it can be computationally expensive and typically has side effects on the Skin
	* instance, through execution of hooks.
	*
	* The data keys should be valid English words. Compound words should
	* be hyphenated except if they are normally written as one word. Each
	* key should be prefixed with a type hint, this may be enforced by the
	* class PHPUnit test.
	*
	* Plain strings are prefixed with 'html-', plain arrays with 'array-'
	* and complex array data with 'data-'. 'is-' and 'has-' prefixes can
	* be used for boolean variables.
	* Messages are prefixed with 'msg-', followed by their message key.
	* All messages specified in the skin option 'messages' will be available
	* under 'msg-MESSAGE-NAME'.
	*
	* @return array Data for a mustache template
	*/
	public function getTemplateData() {
	$title = $this->getTitle();
	$out = $this->getOutput();
	$user = $this->getUser();
	$isMainPage = $title->isMainPage();
	$blankedHeading = false;
	// Heading can only be blanked on "views". It should
	// still show on action=edit, diff pages and action=history
	$isHeadingOverridable = $this->getContext()->getActionName() === 'view' &&
	!$this->getRequest()->getRawVal( 'diff' );

	if ( $isMainPage && $isHeadingOverridable ) {
	// Special casing for the main page to allow more freedom to editors, to
	// design their home page differently. This came up in T290480.
	// The parameter for logged in users is optional and may
	// or may not be used.
	$titleMsg = $user->isAnon() ?
	$this->msg( 'mainpage-title' ) :
	$this->msg( 'mainpage-title-loggedin', $user->getName() );

	// T298715: Use content language rather than user language so that
	// the custom page heading is shown to all users, not just those that have
	// their interface set to the site content language.
	//
	// T331095: Avoid Message::inContentLanuguage and, just like Parser,
	// pick the language variant based on the current URL and/or user
	// preference if their variant relates to the content language.
	$forceUIMsgAsContentMsg = $this->getConfig()
	->get( MainConfigNames::ForceUIMsgAsContentMsg );
	if ( !in_array( $titleMsg->getKey(), (array)$forceUIMsgAsContentMsg ) ) {
	$services = MediaWikiServices::getInstance();
	$contLangVariant = $services->getLanguageConverterFactory()
	->getLanguageConverter( $services->getContentLanguage() )
	->getPreferredVariant();
	$titleMsg->inLanguage( $contLangVariant );
	}
	$titleMsg->setInterfaceMessageFlag( true );
	$blankedHeading = $titleMsg->isBlank();
	if ( !$titleMsg->isDisabled() ) {
	$htmlTitle = $titleMsg->parse();
	} else {
	$htmlTitle = $out->getPageTitle();
	}
	} else {
	$htmlTitle = $out->getPageTitle();
	}

	$data = [
	// raw HTML
	'html-title-heading' => Html::rawElement(
	'h1',
	[
	'id' => 'firstHeading',
	'class' => 'firstHeading mw-first-heading',
	'style' => $blankedHeading ? 'display: none' : null
	] + $this->getUserLanguageAttributes(),
	$htmlTitle
	),
	'html-title' => $htmlTitle ?: null,
	// Boolean values
	'is-title-blank' => $blankedHeading, // @since 1.38
	'is-anon' => $user->isAnon(),
	'is-article' => $out->isArticle(),
	'is-mainpage' => $isMainPage,
	'is-specialpage' => $title->isSpecialPage(),
	'canonical-url' => $this->getCanonicalUrl(),
	];

	$components = $this->componentRegistry->getComponents();
	foreach ( $components as $componentName => $component ) {
	$data['data-' . $componentName] = $component->getTemplateData();
	}
	return $data;
	}

	/**
	* Normalize a skin preference value to a form that can be loaded.
	*
	* If a skin can't be found, it will fall back to the configured default ($wgDefaultSkin), or the
	* hardcoded default ($wgFallbackSkin) if the default skin is unavailable too.
	*
	* @param string $key 'monobook', 'vector', etc.
	* @return string
	*/
	public static function normalizeKey( string $key ) {
	$config = MediaWikiServices::getInstance()->getMainConfig();
	$defaultSkin = $config->get( MainConfigNames::DefaultSkin );
	$fallbackSkin = $config->get( MainConfigNames::FallbackSkin );
	$skinFactory = MediaWikiServices::getInstance()->getSkinFactory();
	$skinNames = $skinFactory->getInstalledSkins();

	// Make keys lowercase for case-insensitive matching.
	$skinNames = array_change_key_case( $skinNames, CASE_LOWER );
	$key = strtolower( $key );
	$defaultSkin = strtolower( $defaultSkin );
	$fallbackSkin = strtolower( $fallbackSkin );

	if ( $key == '' \|\| $key == 'default' ) {
	// Don't return the default immediately;
	// in a misconfiguration we need to fall back.
	$key = $defaultSkin;
	}

	if ( isset( $skinNames[$key] ) ) {
	return $key;
	}

	// Older versions of the software used a numeric setting
	// in the user preferences.
	$fallback = [
	0 => $defaultSkin,
	2 => 'cologneblue'
	];

	if ( isset( $fallback[$key] ) ) {
	// @phan-suppress-next-line PhanTypeMismatchDimFetch False positive
	$key = $fallback[$key];
	}

	if ( isset( $skinNames[$key] ) ) {
	return $key;
	} elseif ( isset( $skinNames[$defaultSkin] ) ) {
	return $defaultSkin;
	} else {
	return $fallbackSkin;
	}
	}

	/**
	* @since 1.31
	* @param string\|array\|null $options Options for the skin can be an array (since 1.35).
	* When a string is passed, it's the skinname.
	* When an array is passed:
	*
	* - `name`: Required. Internal skin name, generally in lowercase to comply with conventions
	* for interface message keys and CSS class names which embed this value.
	*
	* - `format`: Enable rendering of skin as json or html.
	*
	* Since: MW 1.43
	* Default: `html`
	*
	* - `styles`: ResourceLoader style modules to load on all pages. Default: `[]`
	*
	* - `scripts`: ResourceLoader script modules to load on all pages. Default: `[]`
	*
	* - `toc`: Whether a table of contents is included in the main article content
	* area. If your skin has place a table of contents elsewhere (for example, the sidebar),
	* set this to `false`.
	*
	* See ParserOutput::getText() for the implementation logic.
	*
	* Default: `true`
	*
	* - `bodyClasses`: An array of extra class names to add to the HTML `<body>` element.
	* Default: `[]`
	*
	* - `clientPrefEnabled`: Enable support for mw.user.clientPrefs.
	* This instructs OutputPage and ResourceLoader\ClientHtml to include an inline script
	* in web responses for unregistered users to switch HTML classes as needed.
	*
	* Since: MW 1.41
	* Default: `false`
	*
	* - `wrapSiteNotice`: Enable support for standard site notice wrapper.
	* This instructs the Skin to wrap banners in div#siteNotice.
	*
	* Since: MW 1.42
	* Default: `false`
	*
	* - `responsive`: Whether the skin supports responsive behaviour and wants a viewport meta
	* tag to be added to the HTML head. Note, users can disable this feature via a user
	* preference.
	*
	* Default: `false`
	*
	* - `supportsMwHeading`: Whether the skin supports new HTML markup for headings, which uses
	* `<div class="mw-heading">` tags (https://www.mediawiki.org/wiki/Heading_HTML_changes).
	* If false, MediaWiki will output the legacy markup instead.
	*
	* Since: MW 1.43
	* Default: `false` (will become `true` in and then will be removed in the future)
	*
	* - `link`: An array of link option overriddes. See Skin::makeLink for the available options.
	*
	* Default: `[]`
	*
	* - `tempUserBanner`: Whether to display a banner on page views by in temporary user sessions.
	* This will prepend SkinComponentTempUserBanner to the `<body>` above everything else.
	* See also MediaWiki\MainConfigSchema::AutoCreateTempUser and User::isTemp.
	*
	* Default: `false`
	*
	* - `menus`: Which menus the skin supports, to allow features like SpecialWatchlist
	* to render their own navigation in the skins that don't support certain menus.
	* For any key in the array, the skin is promising to render an element e.g. the
	* presence of `associated-pages` means the skin will render a menu
	* compatible with mw.util.addPortletLink which has the ID p-associated-pages.
	*
	* Default: `['namespaces', 'views', 'actions', 'variants']`
	*
	* Opt-in menus:
	* - `associated-pages`
	* - `notifications`
	* - `user-interface-preferences`
	* - `user-page`
	* - `user-menu`
	*/
	public function __construct( $options = null ) {
	if ( is_string( $options ) ) {
	$this->skinname = $options;
	} elseif ( $options ) {
	$name = $options['name'] ?? null;

	if ( !$name ) {
	throw new SkinException( 'Skin name must be specified' );
	}

	// Defaults are set in Skin::getOptions()
	$this->options = $options;
	$this->skinname = $name;
	}
	$this->defaultLinkOptions = $this->getOptions()['link'];
	$this->componentRegistry = new SkinComponentRegistry(
	new SkinComponentRegistryContext( $this )
	);
	}

	/**
	* @return string\|null Skin name
	*/
	public function getSkinName() {
	return $this->skinname;
	}

	/**
	* Indicates if this skin is responsive.
	* Responsive skins have skin--responsive added to <body> by OutputPage,
	* and a viewport <meta> tag set by Skin::initPage.
	*
	* @since 1.36
	* @stable to override
	* @return bool
	*/
	public function isResponsive() {
	$isSkinResponsiveCapable = $this->getOptions()['responsive'];
	$userOptionsLookup = MediaWikiServices::getInstance()->getUserOptionsLookup();

	return $isSkinResponsiveCapable &&
	$userOptionsLookup->getBoolOption( $this->getUser(), 'skin-responsive' );
	}

	/**
	* @stable to override
	* @param OutputPage $out
	*/
	public function initPage( OutputPage $out ) {
	$skinMetaTags = $this->getConfig()->get( MainConfigNames::SkinMetaTags );
	$siteName = $this->getConfig()->get( MainConfigNames::Sitename );
	$this->preloadExistence();

	if ( $this->isResponsive() ) {
	$out->addMeta(
	'viewport',
	'width=device-width, initial-scale=1.0, ' .
	'user-scalable=yes, minimum-scale=0.25, maximum-scale=5.0'
	);
	} else {
	// Force the desktop experience on an iPad by resizing the mobile viewport to
	// the value of @min-width-breakpoint-desktop (1120px).
	// This is as @min-width-breakpoint-desktop-wide usually tends to optimize
	// for larger screens with max-widths and margins.
	// The initial-scale SHOULD NOT be set here as defining it will impact zoom
	// on mobile devices. To allow font-size adjustment in iOS devices (see T311795)
	// we will define a zoom in JavaScript on certain devices (see resources/src/mediawiki.page.ready/ready.js)
	$out->addMeta(
	'viewport',
	'width=1120'
	);
	}

	$tags = [
	'og:site_name' => $siteName,
	'og:title' => $out->getHTMLTitle(),
	'twitter:card' => 'summary_large_image',
	'og:type' => 'website',
	];

	// Support sharing on platforms such as Facebook and Twitter
	foreach ( $tags as $key => $value ) {
	if ( in_array( $key, $skinMetaTags ) ) {
	$out->addMeta( $key, $value );
	}
	}
	}

	/**
	* Defines the ResourceLoader modules that should be added to the skin
	* It is recommended that skins wishing to override call parent::getDefaultModules()
	* and substitute out any modules they wish to change by using a key to look them up
	*
	* Any modules defined with the 'styles' key will be added as render blocking CSS via
	* Output::addModuleStyles. Similarly, each key should refer to a list of modules
	*
	* @stable to override
	* @return array Array of modules with helper keys for easy overriding
	*/
	public function getDefaultModules() {
	$out = $this->getOutput();
	$user = $this->getUser();

	// Modules declared in the $modules literal are loaded
	// for ALL users, on ALL pages, in ALL skins.
	// Keep this list as small as possible!
	$modules = [
	// The 'styles' key sets render-blocking style modules
	// Unlike other keys in $modules, this is an associative array
	// where each key is its own group pointing to a list of modules
	'styles' => [
	'skin' => $this->getOptions()['styles'],
	'core' => [],
	'content' => [],
	'syndicate' => [],
	'user' => []
	],
	'core' => [
	'site',
	'mediawiki.page.ready',
	],
	// modules that enhance the content in some way
	'content' => [],
	// modules relating to search functionality
	'search' => [],
	// Skins can register their own scripts
	'skin' => $this->getOptions()['scripts'],
	// modules relating to functionality relating to watching an article
	'watch' => [],
	// modules which relate to the current users preferences
	'user' => [],
	// modules relating to RSS/Atom Feeds
	'syndicate' => [],
	];

	// Preload jquery.tablesorter for mediawiki.page.ready
	if ( strpos( $out->getHTML(), 'sortable' ) !== false ) {
	$modules['content'][] = 'jquery.tablesorter';
	$modules['styles']['content'][] = 'jquery.tablesorter.styles';
	}

	// Preload jquery.makeCollapsible for mediawiki.page.ready
	if ( strpos( $out->getHTML(), 'mw-collapsible' ) !== false ) {
	$modules['content'][] = 'jquery.makeCollapsible';
	$modules['styles']['content'][] = 'jquery.makeCollapsible.styles';
	}

	// Load relevant styles on wiki pages that use mw-ui-button.
	// Since 1.26, this no longer loads unconditionally. Special pages
	// and extensions should load this via addModuleStyles() instead.
	if ( strpos( $out->getHTML(), 'mw-ui-button' ) !== false ) {
	$modules['styles']['content'][] = 'mediawiki.ui.button';
	}
	// Since 1.41, styling for mw-message-box is only required for
	// messages that appear in article content.
	// This should only be removed when a suitable alternative exists
	// e.g. https://phabricator.wikimedia.org/T363607 is resolved.
	if ( strpos( $out->getHTML(), 'mw-message-box' ) !== false ) {
	$modules['styles']['content'][] = 'mediawiki.legacy.messageBox';
	}
	// If the page is using Codex message box markup load Codex styles.
	// Since 1.41. Skins can unset this if they prefer to handle this via other
	// means.
	// This is intended for extensions.
	// For content, this should not be considered stable, and will likely
	// be removed when https://phabricator.wikimedia.org/T363607 is resolved.
	if ( strpos( $out->getHTML(), 'cdx-message' ) !== false ) {
	$modules['styles']['content'][] = 'mediawiki.codex.messagebox.styles';
	}

	if ( $out->isTOCEnabled() ) {
	$modules['content'][] = 'mediawiki.toc';
	}

	$authority = $this->getAuthority();
	$relevantTitle = $this->getRelevantTitle();
	if ( $authority->getUser()->isRegistered()
	&& $authority->isAllowedAll( 'viewmywatchlist', 'editmywatchlist' )
	&& $relevantTitle && $relevantTitle->canExist()
	) {
	$modules['watch'][] = 'mediawiki.page.watch.ajax';
	}

	$userOptionsLookup = MediaWikiServices::getInstance()->getUserOptionsLookup();
	if ( $userOptionsLookup->getBoolOption( $user, 'editsectiononrightclick' )
	\|\| ( $out->isArticle() && $userOptionsLookup->getOption( $user, 'editondblclick' ) )
	) {
	$modules['user'][] = 'mediawiki.misc-authed-pref';
	}

	if ( $out->isSyndicated() ) {
	$modules['styles']['syndicate'][] = 'mediawiki.feedlink';
	}

	if ( $user->isTemp() ) {
	$modules['user'][] = 'mediawiki.tempUserBanner';
	$modules['styles']['user'][] = 'mediawiki.tempUserBanner.styles';
	}

	if ( $this->getTitle() && $this->getTitle()->getNamespace() === NS_FILE ) {
	$modules['styles']['core'][] = 'filepage'; // local Filepage.css, T31277, T356505
	}

	return $modules;
	}

	/**
	* Preload the existence of three commonly-requested pages in a single query
	*/
	private function preloadExistence() {
	$titles = [];

	// User/talk link
	$user = $this->getUser();
	if ( $user->isRegistered() ) {
	$titles[] = $user->getUserPage();
	$titles[] = $user->getTalkPage();
	}

	// Check, if the page can hold some kind of content, otherwise do nothing
	$title = $this->getRelevantTitle();
	if ( $title && $title->canExist() && $title->canHaveTalkPage() ) {
	$namespaceInfo = MediaWikiServices::getInstance()->getNamespaceInfo();
	if ( $title->isTalkPage() ) {
	$titles[] = $namespaceInfo->getSubjectPage( $title );
	} else {
	$titles[] = $namespaceInfo->getTalkPage( $title );
	}
	}

	// Preload for self::getCategoryLinks
	$allCats = $this->getOutput()->getCategoryLinks();
	if ( isset( $allCats['normal'] ) && $allCats['normal'] !== [] ) {
	$catLink = Title::newFromText( $this->msg( 'pagecategorieslink' )->inContentLanguage()->text() );
	if ( $catLink ) {
	// If this is a special page, the LinkBatch would skip it
	$titles[] = $catLink;
	}
	}

	$this->getHookRunner()->onSkinPreloadExistence( $titles, $this );

	if ( $titles ) {
	$linkBatchFactory = MediaWikiServices::getInstance()->getLinkBatchFactory();
	$lb = $linkBatchFactory->newLinkBatch( $titles );
	$lb->setCaller( __METHOD__ );
	$lb->execute();
	}
	}

	/**
	* @see self::getRelevantTitle()
	* @param Title $t
	*/
	public function setRelevantTitle( $t ) {
	$this->mRelevantTitle = $t;
	}

	/**
	* Return the "relevant" title.
	* A "relevant" title is not necessarily the actual title of the page.
	* Special pages like Special:MovePage use set the page they are acting on
	* as their "relevant" title, this allows the skin system to display things
	* such as content tabs which belong to that page instead of displaying
	* a basic special page tab which has almost no meaning.
	*
	* @return Title\|null the title is null when no relevant title was set, as this
	* falls back to ContextSource::getTitle
	*/
	public function getRelevantTitle() {
	return $this->mRelevantTitle ?? $this->getTitle();
	}

	/**
	* @see self::getRelevantUser()
	* @param UserIdentity\|null $u
	*/
	public function setRelevantUser( ?UserIdentity $u ) {
	$this->mRelevantUser = $u;
	}

	/**
	* Return the "relevant" user.
	* A "relevant" user is similar to a relevant title. Special pages like
	* Special:Contributions mark the user which they are relevant to so that
	* things like the toolbox can display the information they usually are only
	* able to display on a user's userpage and talkpage.
	*
	* @return UserIdentity\|null Null if there's no relevant user or the viewer cannot view it.
	*/
	public function getRelevantUser(): ?UserIdentity {
	if ( $this->mRelevantUser === false ) {
	$this->mRelevantUser = null; // false indicates we never attempted to load it.
	$title = $this->getRelevantTitle();
	if ( $title->hasSubjectNamespace( NS_USER ) ) {
	$services = MediaWikiServices::getInstance();
	$rootUser = $title->getRootText();
	$userNameUtils = $services->getUserNameUtils();
	if ( $userNameUtils->isIP( $rootUser ) ) {
	$this->mRelevantUser = UserIdentityValue::newAnonymous( $rootUser );
	} else {
	$user = $services->getUserIdentityLookup()->getUserIdentityByName( $rootUser );
	$this->mRelevantUser = $user && $user->isRegistered() ? $user : null;
	}
	}
	}

	// The relevant user should only be set if it exists. However, if it exists but is hidden,
	// and the viewer cannot see hidden users, this exposes the fact that the user exists;
	// pretend like the user does not exist in such cases, by setting it to null. T120883
	if ( $this->mRelevantUser && $this->mRelevantUser->isRegistered() ) {
	$userBlock = MediaWikiServices::getInstance()
	->getBlockManager()
	->getBlock( $this->mRelevantUser, null );
	if ( $userBlock && $userBlock->getHideName() &&
	!$this->getAuthority()->isAllowed( 'hideuser' )
	) {
	$this->mRelevantUser = null;
	}
	}

	return $this->mRelevantUser;
	}

	/**
	* Outputs the HTML for the page.
	* @internal Only to be called by OutputPage.
	*/
	final public function outputPageFinal( OutputPage $out ) {
	// generate body
	ob_start();
	$this->outputPage();
	$html = ob_get_contents();
	ob_end_clean();

	// T259955: OutputPage::headElement must be called last
	// as it calls OutputPage::getRlClient, which freezes the ResourceLoader
	// modules queue for the current page load.
	// Since Skins can add ResourceLoader modules via OutputPage::addModule
	// and OutputPage::addModuleStyles changing this order can lead to
	// bugs.
	$head = $out->headElement( $this );
	$tail = $out->tailElement( $this );

	echo $head . $html . $tail;
	}

	/**
	* Outputs the HTML generated by other functions.
	*/
	abstract public function outputPage();

	/**
	* TODO: document
	* @param Title $title
	* @return string
	*/
	public function getPageClasses( $title ) {
	$services = MediaWikiServices::getInstance();
	$ns = $title->getNamespace();
	$numeric = 'ns-' . $ns;

	if ( $title->isSpecialPage() ) {
	$type = 'ns-special';
	// T25315: provide a class based on the canonical special page name without subpages
	[ $canonicalName ] = $services->getSpecialPageFactory()->resolveAlias( $title->getDBkey() );
	if ( $canonicalName ) {
	$type .= ' ' . Sanitizer::escapeClass( "mw-special-$canonicalName" );
	} else {
	$type .= ' mw-invalidspecialpage';
	}
	} else {
	if ( $title->isTalkPage() ) {
	$type = 'ns-talk';
	} else {
	$type = 'ns-subject';
	}
	// T208315: add HTML class when the user can edit the page
	if ( $this->getAuthority()->probablyCan( 'edit', $title ) ) {
	$type .= ' mw-editable';
	}
	}

	$titleFormatter = $services->getTitleFormatter();
	$name = Sanitizer::escapeClass( 'page-' . $titleFormatter->getPrefixedText( $title ) );
	$root = Sanitizer::escapeClass( 'rootpage-' . $titleFormatter->formatTitle( $ns, $title->getRootText() ) );
	// Add a static class that is not subject to translation to allow extensions/skins/global code to target main
	// pages reliably (T363281)
	if ( $title->isMainPage() ) {
	$name .= ' page-Main_Page';
	}

	return "$numeric $type $name $root";
	}

	/**
	* Return values for <html> element
	* @return array Array of associative name-to-value elements for <html> element
	*/
	public function getHtmlElementAttributes() {
	$lang = $this->getLanguage();
	return [
	'lang' => $lang->getHtmlCode(),
	'dir' => $lang->getDir(),
	'class' => 'client-nojs',
	];
	}

	/**
	* @return string HTML
	*/
	public function getCategoryLinks() {
	$out = $this->getOutput();
	$allCats = $out->getCategoryLinks();
	$title = $this->getTitle();
	$services = MediaWikiServices::getInstance();
	$linkRenderer = $services->getLinkRenderer();

	if ( $allCats === [] ) {
	return '';
	}

	$embed = "<li>";
	$pop = "</li>";

	$s = '';
	$colon = $this->msg( 'colon-separator' )->escaped();

	if ( !empty( $allCats['normal'] ) ) {
	$t = $embed . implode( $pop . $embed, $allCats['normal'] ) . $pop;

	$msg = $this->msg( 'pagecategories' )->numParams( count( $allCats['normal'] ) );
	$linkPage = $this->msg( 'pagecategorieslink' )->inContentLanguage()->text();
	$pageCategoriesLinkTitle = Title::newFromText( $linkPage );
	if ( $pageCategoriesLinkTitle ) {
	$link = $linkRenderer->makeLink( $pageCategoriesLinkTitle, $msg->text() );
	} else {
	$link = $msg->escaped();
	}
	$s .= Html::rawElement(
	'div',
	[ 'id' => 'mw-normal-catlinks', 'class' => 'mw-normal-catlinks' ],
	$link . $colon . Html::rawElement( 'ul', [], $t )
	);
	}

	# Hidden categories
	if ( isset( $allCats['hidden'] ) ) {
	$userOptionsLookup = $services->getUserOptionsLookup();

	if ( $userOptionsLookup->getBoolOption( $this->getUser(), 'showhiddencats' ) ) {
	$class = ' mw-hidden-cats-user-shown';
	} elseif ( $title->inNamespace( NS_CATEGORY ) ) {
	$class = ' mw-hidden-cats-ns-shown';
	} else {
	$class = ' mw-hidden-cats-hidden';
	}

	$s .= Html::rawElement(
	'div',
	[ 'id' => 'mw-hidden-catlinks', 'class' => "mw-hidden-catlinks$class" ],
	$this->msg( 'hidden-categories' )->numParams( count( $allCats['hidden'] ) )->escaped() .
	$colon .
	Html::rawElement(
	'ul',
	[],
	$embed . implode( $pop . $embed, $allCats['hidden'] ) . $pop
	)
	);
	}

	return $s;
	}

	/**
	* @return string HTML
	*/
	public function getCategories() {
	$userOptionsLookup = MediaWikiServices::getInstance()->getUserOptionsLookup();
	$showHiddenCats = $userOptionsLookup->getBoolOption( $this->getUser(), 'showhiddencats' );

	$catlinks = $this->getCategoryLinks();
	// Check what we're showing
	$allCats = $this->getOutput()->getCategoryLinks();
	$showHidden = $showHiddenCats \|\| $this->getTitle()->inNamespace( NS_CATEGORY );

	$classes = [ 'catlinks' ];
	if ( empty( $allCats['normal'] ) && !( !empty( $allCats['hidden'] ) && $showHidden ) ) {
	$classes[] = 'catlinks-allhidden';
	}

	return Html::rawElement(
	'div',
	[ 'id' => 'catlinks', 'class' => $classes, 'data-mw' => 'interface' ],
	$catlinks
	);
	}

	/**
	* This runs a hook to allow extensions placing their stuff after content
	* and article metadata (e.g. categories).
	* Note: This function has nothing to do with afterContent().
	*
	* This hook is placed here in order to allow using the same hook for all
	* skins, both the SkinTemplate based ones and the older ones, which directly
	* use this class to get their data.
	*
	* The output of this function gets processed in SkinTemplate::outputPage() for
	* the SkinTemplate based skins, all other skins should directly echo it.
	*
	* @return string Empty by default, if not changed by any hook function.
	*/
	protected function afterContentHook() {
	$data = '';

	if ( $this->getHookRunner()->onSkinAfterContent( $data, $this ) ) {
	// adding just some spaces shouldn't toggle the output
	// of the whole <div/>, so we use trim() here
	if ( trim( $data ) != '' ) {
	// Doing this here instead of in the skins to
	// ensure that the div has the same ID in all
	// skins
	$data = "<div id='mw-data-after-content'>\n" .
	"\t$data\n" .
	"</div>\n";
	}
	} else {
	wfDebug( "Hook SkinAfterContent changed output processing." );
	}

	return $data;
	}

	/**
	* Get the canonical URL (permalink) for the page including oldid if present.
	*
	* @return string
	*/
	private function getCanonicalUrl() {
	$title = $this->getTitle();
	$oldid = $this->getOutput()->getRevisionId();
	if ( $oldid ) {
	return $title->getCanonicalURL( 'oldid=' . $oldid );
	} else {
	// oldid not available for non existing pages
	return $title->getCanonicalURL();
	}
	}

	/**
	* Text with the permalink to the source page,
	* usually shown on the footer of a printed page
	*
	* @stable to override
	* @return string HTML text with an URL
	*/
	public function printSource() {
	$urlUtils = MediaWikiServices::getInstance()->getUrlUtils();
	$url = htmlspecialchars( $urlUtils->expandIRI( $this->getCanonicalUrl() ) ?? '' );

	return $this->msg( 'retrievedfrom' )
	->rawParams( '<a dir="ltr" href="' . $url . '">' . $url . '</a>' )
	->parse();
	}

	/**
	* @return string HTML
	*/
	public function getUndeleteLink() {
	$action = $this->getRequest()->getRawVal( 'action' ) ?? 'view';
	$title = $this->getTitle();
	$linkRenderer = MediaWikiServices::getInstance()->getLinkRenderer();

	if ( ( !$title->exists() \|\| $action == 'history' ) &&
	$this->getAuthority()->probablyCan( 'deletedhistory', $title )
	) {
	$n = $title->getDeletedEditsCount();

	if ( $n ) {
	if ( $this->getAuthority()->probablyCan( 'undelete', $title ) ) {
	$msg = 'thisisdeleted';
	} else {
	$msg = 'viewdeleted';
	}

	$subtitle = $this->msg( $msg )->rawParams(
	$linkRenderer->makeKnownLink(
	SpecialPage::getTitleFor( 'Undelete', $title->getPrefixedDBkey() ),
	$this->msg( 'restorelink' )->numParams( $n )->text() )
	)->escaped();

	$links = [];
	// Add link to page logs, unless we're on the history page (which
	// already has one)
	if ( $action !== 'history' ) {
	$links[] = $linkRenderer->makeKnownLink(
	SpecialPage::getTitleFor( 'Log' ),
	$this->msg( 'viewpagelogs-lowercase' )->text(),
	[],
	[ 'page' => $title->getPrefixedText() ]
	);
	}

	// Allow extensions to add more links
	$this->getHookRunner()->onUndeletePageToolLinks(
	$this->getContext(), $linkRenderer, $links );

	if ( $links ) {
	$subtitle .= ''
	. $this->msg( 'word-separator' )->escaped()
	. $this->msg( 'parentheses' )
	->rawParams( $this->getLanguage()->pipeList( $links ) )
	->escaped();
	}

	return Html::rawElement( 'div', [ 'class' => 'mw-undelete-subtitle' ], $subtitle );
	}
	}

	return '';
	}

	/**
	* @return string
	*/
	private function subPageSubtitleInternal() {
	$services = MediaWikiServices::getInstance();
	$linkRenderer = $services->getLinkRenderer();
	$out = $this->getOutput();
	$title = $out->getTitle();
	$subpages = '';

	if ( !$this->getHookRunner()->onSkinSubPageSubtitle( $subpages, $this, $out ) ) {
	return $subpages;
	}

	$hasSubpages = $services->getNamespaceInfo()->hasSubpages( $title->getNamespace() );
	if ( !$out->isArticle() \|\| !$hasSubpages ) {
	return $subpages;
	}

	$ptext = $title->getPrefixedText();
	if ( strpos( $ptext, '/' ) !== false ) {
	$links = explode( '/', $ptext );
	array_pop( $links );
	$count = 0;
	$growingLink = '';
	$display = '';
	$lang = $this->getLanguage();

	foreach ( $links as $link ) {
	$growingLink .= $link;
	$display .= $link;
	$linkObj = Title::newFromText( $growingLink );

	if ( $linkObj && $linkObj->isKnown() ) {
	$getlink = $linkRenderer->makeKnownLink( $linkObj, $display );

	$count++;

	if ( $count > 1 ) {
	$subpages .= $this->msg( 'pipe-separator' )->escaped();
	} else {
	$subpages .= '< ';
	}

	$subpages .= Html::rawElement( 'bdi', [ 'dir' => $lang->getDir() ], $getlink );
	$display = '';
	} else {
	$display .= '/';
	}
	$growingLink .= '/';
	}
	}

	return $subpages;
	}

	/**
	* Helper function for mapping template data for use in legacy function
	*
	* @param string $dataKey
	* @param string $name
	* @return string
	*/
	private function getFooterTemplateDataItem( string $dataKey, string $name ) {
	$footerData = $this->getComponent( 'footer' )->getTemplateData();
	$items = $footerData[ $dataKey ]['array-items'] ?? [];
	foreach ( $items as $item ) {
	if ( $item['name'] === $name ) {
	return $item['html'];
	}
	}
	return '';
	}

	/**
	* @return string
	*/
	final public function getCopyright(): string {
	return $this->getFooterTemplateDataItem( 'data-info', 'copyright' );
	}

	/**
	* @param string $align
	* @return string
	*/
	public function logoText( $align = '' ) {
	if ( $align != '' ) {
	$a = " style='float: {$align};'";
	} else {
	$a = '';
	}

	$mp = $this->msg( 'mainpage' )->escaped();
	$url = htmlspecialchars( Title::newMainPage()->getLocalURL() );

	$logourl = RL\SkinModule::getAvailableLogos(
	$this->getConfig(),
	$this->getLanguage()->getCode()
	)[ '1x' ];
	return "<a href='{$url}'><img{$a} src='{$logourl}' alt='[{$mp}]' /></a>";
	}

	/**
	* Get template representation of the footer.
	*
	* Stable to use since 1.40 but should not be overridden.
	*
	* @since 1.35
	* @internal for use inside SkinComponentRegistryContext
	* @return array
	*/
	public function getFooterIcons() {
	MWDebug::detectDeprecatedOverride( $this, __CLASS__, 'getFooterIcons', '1.40' );
	return SkinComponentFooter::getFooterIconsData(
	$this->getConfig()
	);
	}

	/**
	* Renders a $wgFooterIcons icon according to the method's arguments
	*
	* Stable to use since 1.40 but should not be overridden.
	*
	* @param array $icon The icon to build the html for, see $wgFooterIcons
	* for the format of this array.
	* @param bool\|string $withImage Whether to use the icon's image or output
	* a text-only footericon.
	* @return string HTML
	*/
	public function makeFooterIcon( $icon, $withImage = 'withImage' ) {
	MWDebug::detectDeprecatedOverride( $this, __CLASS__, 'makeFooterIcon', '1.40' );
	return SkinComponentFooter::makeFooterIconHTML(
	$this->getConfig(), $icon, $withImage
	);
	}

	/**
	* Return URL options for the 'edit page' link.
	* This may include an 'oldid' specifier, if the current page view is such.
	*
	* @return array
	* @internal
	*/
	public function editUrlOptions() {
	$options = [ 'action' => 'edit' ];
	$out = $this->getOutput();

	if ( !$out->isRevisionCurrent() ) {
	$options['oldid'] = intval( $out->getRevisionId() );
	}

	return $options;
	}

	/**
	* @param UserIdentity\|int $id
	* @return bool
	*/
	public function showEmailUser( $id ) {
	if ( $id instanceof UserIdentity ) {
	$targetUser = User::newFromIdentity( $id );
	} else {
	$targetUser = User::newFromId( $id );
	}

	# The sending user must have a confirmed email address and the receiving
	# user must accept emails from the sender.
	$emailUser = MediaWikiServices::getInstance()->getEmailUserFactory()
	->newEmailUser( $this->getUser() );

	return $emailUser->canSend()->isOK()
	&& $emailUser->validateTarget( $targetUser )->isOK();
	}

	/* these are used extensively in SkinTemplate, but also some other places */

	/**
	* @param string\|array $urlaction
	* @return string
	*/
	public static function makeMainPageUrl( $urlaction = '' ) {
	$title = Title::newMainPage();

	return $title->getLinkURL( $urlaction );
	}

	/**
	* Make a URL for a Special Page using the given query and protocol.
	*
	* If $proto is set to null, make a local URL. Otherwise, make a full
	* URL with the protocol specified.
	*
	* @deprecated since 1.39 - Moved to SkinComponentUtils::makeSpecialUrl
	* @param string $name Name of the Special page
	* @param string\|array $urlaction Query to append
	* @param string\|null $proto Protocol to use or null for a local URL
	* @return string
	*/
	public static function makeSpecialUrl( $name, $urlaction = '', $proto = null ) {
	wfDeprecated( __METHOD__, '1.39' );
	return SkinComponentUtils::makeSpecialUrl( $name, $urlaction, $proto );
	}

	/**
	* @deprecated since 1.39 - Moved to SkinComponentUtils::makeSpecialUrlSubpage
	* @param string $name
	* @param string\|bool $subpage false for no subpage
	* @param string\|array $urlaction
	* @return string
	*/
	public static function makeSpecialUrlSubpage( $name, $subpage, $urlaction = '' ) {
	wfDeprecated( __METHOD__, '1.39' );
	return SkinComponentUtils::makeSpecialUrlSubpage( $name, $subpage, $urlaction );
	}

	/**
	* If url string starts with http, consider as external URL, else
	* internal
	* @param string $name
	* @return string URL
	*/
	public static function makeInternalOrExternalUrl( $name ) {
	$protocols = MediaWikiServices::getInstance()->getUrlUtils()->validProtocols();

	if ( preg_match( '/^(?i:' . $protocols . ')/', $name ) ) {
	return $name;
	} else {
	$title = $name instanceof Title ? $name : Title::newFromText( $name );
	return $title ? $title->getLocalURL() : '';
	}
	}

	/**
	* these return an array with the 'href' and boolean 'exists'
	* @param string\|Title $name
	* @param string\|array $urlaction
	* @return array
	*/
	protected static function makeUrlDetails( $name, $urlaction = '' ) {
	$title = $name instanceof Title ? $name : Title::newFromText( $name );
	return [
	'href' => $title ? $title->getLocalURL( $urlaction ) : '',
	'exists' => $title && $title->isKnown(),
	];
	}

	/**
	* Make URL details where the article exists (or at least it's convenient to think so)
	* @param string\|Title $name Article name
	* @param string\|array $urlaction
	* @return array
	*/
	protected static function makeKnownUrlDetails( $name, $urlaction = '' ) {
	$title = $name instanceof Title ? $name : Title::newFromText( $name );
	return [
	'href' => $title ? $title->getLocalURL( $urlaction ) : '',
	'exists' => (bool)$title,
	];
	}

	/**
	* Allows correcting the language of interlanguage links which, mostly due to
	* legacy reasons, do not always match the standards compliant language tag.
	*
	* @param string $code
	* @return string
	* @since 1.35
	*/
	public function mapInterwikiToLanguage( $code ) {
	$map = $this->getConfig()->get( MainConfigNames::InterlanguageLinkCodeMap );
	return $map[ $code ] ?? $code;
	}

	/**
	* Generates array of language links for the current page.
	* This may includes items added to this section by the SidebarBeforeOutput hook
	* (which may not necessarily be language links)
	*
	* @since 1.35
	* @return array
	*/
	public function getLanguages() {
	if ( $this->getConfig()->get( MainConfigNames::HideInterlanguageLinks ) ) {
	return [];
	}
	if ( $this->languageLinks === null ) {
	$hookRunner = $this->getHookRunner();

	$userLang = $this->getLanguage();
	$languageLinks = [];
	$langNameUtils = MediaWikiServices::getInstance()->getLanguageNameUtils();

	foreach ( $this->getOutput()->getLanguageLinks() as $languageLinkText ) {
	[ $prefix, $title ] = explode( ':', $languageLinkText, 2 );
	$class = 'interlanguage-link interwiki-' . $prefix;

	[ $title, $frag ] = array_pad( explode( '#', $title, 2 ), 2, '' );
	$languageLinkTitle = TitleValue::tryNew( NS_MAIN, $title, $frag, $prefix );
	if ( $languageLinkTitle === null ) {
	continue;
	}
	$ilInterwikiCode = $this->mapInterwikiToLanguage( $prefix );

	$ilLangName = $langNameUtils->getLanguageName( $ilInterwikiCode );

	if ( strval( $ilLangName ) === '' ) {
	$ilDisplayTextMsg = $this->msg( "interlanguage-link-$ilInterwikiCode" );
	if ( !$ilDisplayTextMsg->isDisabled() ) {
	// Use custom MW message for the display text
	$ilLangName = $ilDisplayTextMsg->text();
	} else {
	// Last resort: fallback to the language link target
	$ilLangName = $languageLinkText;
	}
	} else {
	// Use the language autonym as display text
	$ilLangName = $this->getLanguage()->ucfirst( $ilLangName );
	}

	// CLDR extension or similar is required to localize the language name;
	// otherwise we'll end up with the autonym again.
	$ilLangLocalName =
	$langNameUtils->getLanguageName( $ilInterwikiCode, $userLang->getCode() );

	$languageLinkTitleText = $languageLinkTitle->getText();
	if ( $ilLangLocalName === '' ) {
	$ilFriendlySiteName =
	$this->msg( "interlanguage-link-sitename-$ilInterwikiCode" );
	if ( !$ilFriendlySiteName->isDisabled() ) {
	if ( $languageLinkTitleText === '' ) {
	$ilTitle =
	$this->msg( 'interlanguage-link-title-nonlangonly',
	$ilFriendlySiteName->text() )->text();
	} else {
	$ilTitle =
	$this->msg( 'interlanguage-link-title-nonlang',
	$languageLinkTitleText, $ilFriendlySiteName->text() )->text();
	}
	} else {
	// we have nothing friendly to put in the title, so fall back to
	// displaying the interlanguage link itself in the title text
	// (similar to what is done in page content)
	$ilTitle = $languageLinkTitle->getInterwiki() . ":$languageLinkTitleText";
	}
	} elseif ( $languageLinkTitleText === '' ) {
	$ilTitle =
	$this->msg( 'interlanguage-link-title-langonly', $ilLangLocalName )->text();
	} else {
	$ilTitle =
	$this->msg( 'interlanguage-link-title', $languageLinkTitleText,
	$ilLangLocalName )->text();
	}

	$ilInterwikiCodeBCP47 = LanguageCode::bcp47( $ilInterwikiCode );
	// A TitleValue is sufficient above this point, but we need
	// a full Title for ::getFullURL() and the hook invocation
	$languageLinkFullTitle = Title::newFromLinkTarget( $languageLinkTitle );
	$languageLink = [
	'href' => $languageLinkFullTitle->getFullURL(),
	'text' => $ilLangName,
	'title' => $ilTitle,
	'class' => $class,
	'link-class' => 'interlanguage-link-target',
	'lang' => $ilInterwikiCodeBCP47,
	'hreflang' => $ilInterwikiCodeBCP47,
	'data-title' => $languageLinkTitleText,
	'data-language-autonym' => $ilLangName,
	'data-language-local-name' => $ilLangLocalName,
	];
	$hookRunner->onSkinTemplateGetLanguageLink(
	$languageLink, $languageLinkFullTitle, $this->getTitle(), $this->getOutput()
	);
	$languageLinks[] = $languageLink;
	}
	$this->languageLinks = $languageLinks;
	}

	return $this->languageLinks;
	}

	/**
	* Build array of common navigation links.
	* Assumes thispage property has been set before execution.
	* @since 1.35
	* @return array
	*/
	protected function buildNavUrls() {
	$out = $this->getOutput();
	$title = $this->getTitle();
	$thispage = $title->getPrefixedDBkey();
	$uploadNavigationUrl = $this->getConfig()->get( MainConfigNames::UploadNavigationUrl );

	$nav_urls = [];
	$nav_urls['mainpage'] = [ 'href' => self::makeMainPageUrl() ];
	if ( $uploadNavigationUrl ) {
	$nav_urls['upload'] = [ 'href' => $uploadNavigationUrl ];
	} elseif ( UploadBase::isEnabled() && UploadBase::isAllowed( $this->getAuthority() ) === true ) {
	$nav_urls['upload'] = [ 'href' => SkinComponentUtils::makeSpecialUrl( 'Upload' ) ];
	} else {
	$nav_urls['upload'] = false;
	}
	$nav_urls['specialpages'] = [ 'href' => SkinComponentUtils::makeSpecialUrl( 'Specialpages' ) ];

	$nav_urls['print'] = false;
	$nav_urls['permalink'] = false;
	$nav_urls['info'] = false;
	$nav_urls['whatlinkshere'] = false;
	$nav_urls['recentchangeslinked'] = false;
	$nav_urls['contributions'] = false;
	$nav_urls['log'] = false;
	$nav_urls['blockip'] = false;
	$nav_urls['changeblockip'] = false;
	$nav_urls['unblockip'] = false;
	$nav_urls['mute'] = false;
	$nav_urls['emailuser'] = false;
	$nav_urls['userrights'] = false;

	// A print stylesheet is attached to all pages, but nobody ever
	// figures that out. :) Add a link...
	if ( !$out->isPrintable() && ( $out->isArticle() \|\| $title->isSpecialPage() ) ) {
	$nav_urls['print'] = [
	'text' => $this->msg( 'printableversion' )->text(),
	'href' => 'javascript:print();'
	];
	}

	if ( $out->isArticle() ) {
	// Also add a "permalink" while we're at it
	$revid = $out->getRevisionId();
	if ( $revid ) {
	$nav_urls['permalink'] = [
	'icon' => 'link',
	'text' => $this->msg( 'permalink' )->text(),
	'href' => $title->getLocalURL( "oldid=$revid" )
	];
	}
	}

	if ( $out->isArticleRelated() ) {
	$nav_urls['whatlinkshere'] = [
	'href' => SpecialPage::getTitleFor( 'Whatlinkshere', $thispage )->getLocalURL()
	];

	$nav_urls['info'] = [
	'icon' => 'infoFilled',
	'text' => $this->msg( 'pageinfo-toolboxlink' )->text(),
	'href' => $title->getLocalURL( "action=info" )
	];

	if ( $title->exists() \|\| $title->inNamespace( NS_CATEGORY ) ) {
	$nav_urls['recentchangeslinked'] = [
	'href' => SpecialPage::getTitleFor( 'Recentchangeslinked', $thispage )->getLocalURL()
	];
	}
	}

	$user = $this->getRelevantUser();

	if ( $user ) {
	$rootUser = $user->getName();

	$nav_urls['contributions'] = [
	'text' => $this->msg( 'tool-link-contributions', $rootUser )->text(),
	'href' => SkinComponentUtils::makeSpecialUrlSubpage( 'Contributions', $rootUser ),
	'tooltip-params' => [ $rootUser ],
	];

	$nav_urls['log'] = [
	'icon' => 'listBullet',
	'href' => SkinComponentUtils::makeSpecialUrlSubpage( 'Log', $rootUser )
	];

	if ( $this->getAuthority()->isAllowed( 'block' ) ) {
	// Check if the user is already blocked
	$userBlock = MediaWikiServices::getInstance()
	->getBlockManager()
	->getBlock( $user, null );
	if ( $userBlock ) {
	$nav_urls['changeblockip'] = [
	'icon' => 'block',
	'href' => SkinComponentUtils::makeSpecialUrlSubpage( 'Block', $rootUser )
	];
	$nav_urls['unblockip'] = [
	'icon' => 'unBlock',
	'href' => SkinComponentUtils::makeSpecialUrlSubpage( 'Unblock', $rootUser )
	];
	} else {
	$nav_urls['blockip'] = [
	'icon' => 'block',
	'text' => $this->msg( 'blockip', $rootUser )->text(),
	'href' => SkinComponentUtils::makeSpecialUrlSubpage( 'Block', $rootUser )
	];
	}
	}

	if ( $this->showEmailUser( $user ) ) {
	$nav_urls['emailuser'] = [
	'text' => $this->msg( 'tool-link-emailuser', $rootUser )->text(),
	'href' => SkinComponentUtils::makeSpecialUrlSubpage( 'Emailuser', $rootUser ),
	'tooltip-params' => [ $rootUser ],
	];
	}

	if ( $user->isRegistered() ) {
	if ( $this->getConfig()->get( MainConfigNames::EnableSpecialMute ) &&
	$this->getUser()->isNamed()
	) {
	$nav_urls['mute'] = [
	'text' => $this->msg( 'mute-preferences' )->text(),
	'href' => SkinComponentUtils::makeSpecialUrlSubpage( 'Mute', $rootUser )
	];
	}

	// Don't show links to Special:UserRights for temporary accounts (as they cannot have groups)
	$userNameUtils = MediaWikiServices::getInstance()->getUserNameUtils();
	if ( !$userNameUtils->isTemp( $user->getName() ) ) {
	$sur = new SpecialUserRights;
	$sur->setContext( $this->getContext() );
	$canChange = $sur->userCanChangeRights( $user );
	$delimiter = $this->getConfig()->get(
	MainConfigNames::UserrightsInterwikiDelimiter );
	if ( str_contains( $rootUser, $delimiter ) ) {
	// Username contains interwiki delimiter, link it via the
	// #{userid} syntax. (T260222)
	$linkArgs = [ false, [ 'user' => '#' . $user->getId() ] ];
	} else {
	$linkArgs = [ $rootUser ];
	}
	$nav_urls['userrights'] = [
	'icon' => 'userGroup',
	'text' => $this->msg(
	$canChange ? 'tool-link-userrights' : 'tool-link-userrights-readonly',
	$rootUser
	)->text(),
	'href' => SkinComponentUtils::makeSpecialUrlSubpage( 'Userrights', ...$linkArgs )
	];
	}
	}
	}

	return $nav_urls;
	}

	/**
	* Build data structure representing syndication links.
	* @since 1.35
	* @return array
	*/
	final protected function buildFeedUrls() {
	$feeds = [];
	$out = $this->getOutput();
	if ( $out->isSyndicated() ) {
	foreach ( $out->getSyndicationLinks() as $format => $link ) {
	$feeds[$format] = [
	// Messages: feed-atom, feed-rss
	'text' => $this->msg( "feed-$format" )->text(),
	'href' => $link
	];
	}
	}
	return $feeds;
	}

	/**
	* Build an array that represents the sidebar(s), the navigation bar among them.
	*
	* BaseTemplate::getSidebar can be used to simplify the format and id generation in new skins.
	*
	* The format of the returned array is [ heading => content, ... ], where:
	* - heading is the heading of a navigation portlet. It is either:
	* - magic string to be handled by the skins ('SEARCH' / 'LANGUAGES' / 'TOOLBOX' / ...)
	* (Note that 'SEARCH' unlike others is not supported out-of-the-box by the skins.
	* For it to work, a skin must add custom support for it.)
	* - a message name (e.g. 'navigation'), the message should be HTML-escaped by the skin
	* - plain text, which should be HTML-escaped by the skin
	* - content is the contents of the portlet.
	* - For keys that aren't magic strings, this is an array of link data, where the
	* array items are arrays in the format expected by the $item parameter of
	* {@link self::makeListItem()}.
	* - For magic strings, the format varies. For LANGUAGES and TOOLBOX it is the same as above;
	* for SEARCH the value will be ignored.
	*
	* Note that extensions can control the sidebar contents using the SkinBuildSidebar hook
	* and can technically insert anything in here; skin creators are expected to handle
	* values described above.
	*
	* @return array
	*/
	public function buildSidebar() {
	if ( $this->sidebar === null ) {
	$services = MediaWikiServices::getInstance();
	$callback = function ( $old = null, &$ttl = null ) {
	$bar = [];
	$this->addToSidebar( $bar, 'sidebar' );

	// This hook may vary its behaviour by skin.
	$this->getHookRunner()->onSkinBuildSidebar( $this, $bar );
	$msgCache = MediaWikiServices::getInstance()->getMessageCache();
	if ( $msgCache->isDisabled() ) {
	// Don't cache the fallback if DB query failed. T133069
	$ttl = WANObjectCache::TTL_UNCACHEABLE;
	}

	return $bar;
	};

	$msgCache = $services->getMessageCache();
	$wanCache = $services->getMainWANObjectCache();
	$config = $this->getConfig();
	$languageCode = $this->getLanguage()->getCode();

	$sidebar = $config->get( MainConfigNames::EnableSidebarCache )
	? $wanCache->getWithSetCallback(
	$wanCache->makeKey( 'sidebar', $languageCode, $this->getSkinName() ?? '' ),
	$config->get( MainConfigNames::SidebarCacheExpiry ),
	$callback,
	[
	'checkKeys' => [
	// Unless there is both no exact $code override nor an i18n definition
	// in the software, the only MediaWiki page to check is for $code.
	$msgCache->getCheckKey( $languageCode )
	],
	'lockTSE' => 30
	]
	)
	: $callback();

	$sidebar['TOOLBOX'] = array_merge(
	$this->makeToolbox(
	$this->buildNavUrls(),
	$this->buildFeedUrls()
	), $sidebar['TOOLBOX'] ?? []
	);

	$sidebar['LANGUAGES'] = $this->getLanguages();
	// Apply post-processing to the cached value
	$this->getHookRunner()->onSidebarBeforeOutput( $this, $sidebar );
	$this->sidebar = $sidebar;
	}

	return $this->sidebar;
	}

	/**
	* Add content from a sidebar system message
	* Currently only used for MediaWiki:Sidebar (but may be used by Extensions)
	*
	* This is just a wrapper around addToSidebarPlain() for backwards compatibility
	*
	* @param array &$bar
	* @param string $message
	*/
	public function addToSidebar( &$bar, $message ) {
	$this->addToSidebarPlain( $bar, $this->msg( $message )->inContentLanguage()->plain() );
	}

	/**
	* Add content from plain text
	* @since 1.17
	* @param array &$bar
	* @param string $text
	* @return array
	*/
	public function addToSidebarPlain( &$bar, $text ) {
	$lines = explode( "\n", $text );

	$heading = '';
	$config = $this->getConfig();
	$messageTitle = $config->get( MainConfigNames::EnableSidebarCache )
	? Title::newMainPage() : $this->getTitle();
	$services = MediaWikiServices::getInstance();
	$messageCache = $services->getMessageCache();
	$urlUtils = $services->getUrlUtils();

	foreach ( $lines as $line ) {
	if ( strpos( $line, '*' ) !== 0 ) {
	continue;
	}
	$line = rtrim( $line, "\r" ); // for Windows compat

	if ( strpos( $line, '**' ) !== 0 ) {
	$heading = trim( $line, '* ' );
	if ( !array_key_exists( $heading, $bar ) ) {
	$bar[$heading] = [];
	}
	} else {
	$line = trim( $line, '* ' );

	if ( strpos( $line, '\|' ) !== false ) {
	$line = $messageCache->transform( $line, false, null, $messageTitle );
	$line = array_map( 'trim', explode( '\|', $line, 2 ) );
	if ( count( $line ) !== 2 ) {
	// Second check, could be hit by people doing
	// funky stuff with parserfuncs... (T35321)
	continue;
	}

	$extraAttribs = [];

	$msgLink = $this->msg( $line[0] )->page( $messageTitle )->inContentLanguage();
	if ( $msgLink->exists() ) {
	$link = $msgLink->text();
	if ( $link == '-' ) {
	continue;
	}
	} else {
	$link = $line[0];
	}
	$msgText = $this->msg( $line[1] )->page( $messageTitle );
	if ( $msgText->exists() ) {
	$text = $msgText->text();
	} else {
	$text = $line[1];
	}

	if ( preg_match( '/^(?i:' . $urlUtils->validProtocols() . ')/', $link ) ) {
	$href = $link;

	// Parser::getExternalLinkAttribs won't work here because of the Namespace things
	if ( $config->get( MainConfigNames::NoFollowLinks ) &&
	!$urlUtils->matchesDomainList(
	(string)$href,
	(array)$config->get( MainConfigNames::NoFollowDomainExceptions )
	)
	) {
	$extraAttribs['rel'] = 'nofollow';
	}

	if ( $config->get( MainConfigNames::ExternalLinkTarget ) ) {
	$extraAttribs['target'] =
	$config->get( MainConfigNames::ExternalLinkTarget );
	}
	} else {
	$title = Title::newFromText( $link );
	$href = $title ? $title->fixSpecialName()->getLinkURL() : '';
	}

	$id = strtr( $line[1], ' ', '-' );
	$bar[$heading][] = array_merge( [
	'text' => $text,
	'href' => $href,
	'icon' => $this->getSidebarIcon( $id ),
	'id' => Sanitizer::escapeIdForAttribute( 'n-' . $id ),
	'active' => false,
	], $extraAttribs );
	}
	}
	}

	return $bar;
	}

	/**
	* @param string $id the id of the menu
	* @return string\|null the icon glyph name to associate with this menu
	*/
	private function getSidebarIcon( string $id ) {
	switch ( $id ) {
	case 'mainpage-description':
	return 'home';
	case 'randompage':
	return 'die';
	case 'recentchanges':
	return 'recentChanges';
	// These menu items are commonly added in MediaWiki:Sidebar. We should
	// reconsider the location of this logic in future.
	case 'help':
	case 'help-mediawiki':
	return 'help';
	default:
	return null;
	}
	}

	/**
	* Check whether to allow new talk page notifications for the current request.
	*
	* The client might be reading without a session cookie from an IP that matches
	* a previous IP editor. When clients without a session visit a page with a CDN miss,
	* we must not embed personal notifications, as doing so might leak personal details
	* (if Cache-Control is public), or risk an outage per T350861 (if max-age=0).
	*
	* From an end-user perspective, this has the added benefit of not randomly showing
	* notifications to readers (on page views that happen to be a CDN miss) when
	* sharing an IP with an editor. Notifying clients without a session is not reliably
	* possible, as their requests are usually CDN hits.
	*
	* @see https://phabricator.wikimedia.org/T350861
	* @return bool
	*/
	private function hideNewTalkMessagesForCurrentSession() {
	// Only show new talk page notification if there is a session,
	// (the client edited a page from this browser, or is logged-in).
	return !$this->getRequest()->getSession()->isPersistent();
	}

	/**
	* Gets new talk page messages for the current user and returns an
	* appropriate alert message (or an empty string if there are no messages)
	* @return string
	*/
	public function getNewtalks() {
	if ( $this->hideNewTalkMessagesForCurrentSession() ) {
	return '';
	}

	$newMessagesAlert = '';
	$user = $this->getUser();
	$services = MediaWikiServices::getInstance();
	$linkRenderer = $services->getLinkRenderer();
	$userHasNewMessages = $services->getTalkPageNotificationManager()
	->userHasNewMessages( $user );
	$timestamp = $services->getTalkPageNotificationManager()
	->getLatestSeenMessageTimestamp( $user );
	$newtalks = !$userHasNewMessages ? [] : [
	[
	// TODO: Deprecate adding wiki and link to array and redesign GetNewMessagesAlert hook
	'wiki' => WikiMap::getCurrentWikiId(),
	'link' => $user->getTalkPage()->getLocalURL(),
	'rev' => $timestamp ? $services->getRevisionLookup()
	->getRevisionByTimestamp( $user->getTalkPage(), $timestamp ) : null
	]
	];
	$out = $this->getOutput();

	// Allow extensions to disable or modify the new messages alert
	if ( !$this->getHookRunner()->onGetNewMessagesAlert(
	$newMessagesAlert, $newtalks, $user, $out )
	) {
	return '';
	}
	if ( $newMessagesAlert ) {
	return $newMessagesAlert;
	}

	if ( $newtalks !== [] ) {
	$uTalkTitle = $user->getTalkPage();
	$lastSeenRev = $newtalks[0]['rev'];
	$numAuthors = 0;
	if ( $lastSeenRev !== null ) {
	$plural = true; // Default if we have a last seen revision: if unknown, use plural
	$revStore = $services->getRevisionStore();
	$latestRev = $revStore->getRevisionByTitle(
	$uTalkTitle,
	0,
	IDBAccessObject::READ_NORMAL
	);
	if ( $latestRev !== null ) {
	// Singular if only 1 unseen revision, plural if several unseen revisions.
	$plural = $latestRev->getParentId() !== $lastSeenRev->getId();
	$numAuthors = $revStore->countAuthorsBetween(
	$uTalkTitle->getArticleID(),
	$lastSeenRev,
	$latestRev,
	null,
	10,
	RevisionStore::INCLUDE_NEW
	);
	}
	} else {
	// Singular if no revision -> diff link will show latest change only in any case
	$plural = false;
	}
	$plural = $plural ? 999 : 1;
	// 999 signifies "more than one revision". We don't know how many, and even if we did,
	// the number of revisions or authors is not necessarily the same as the number of
	// "messages".
	$newMessagesLink = $linkRenderer->makeKnownLink(
	$uTalkTitle,
	$this->msg( 'new-messages-link-plural' )->params( $plural )->text(),
	[],
	$uTalkTitle->isRedirect() ? [ 'redirect' => 'no' ] : []
	);

	$newMessagesDiffLink = $linkRenderer->makeKnownLink(
	$uTalkTitle,
	$this->msg( 'new-messages-diff-link-plural' )->params( $plural )->text(),
	[],
	$lastSeenRev !== null
	? [ 'oldid' => $lastSeenRev->getId(), 'diff' => 'cur' ]
	: [ 'diff' => 'cur' ]
	);

	if ( $numAuthors >= 1 && $numAuthors <= 10 ) {
	$newMessagesAlert = $this->msg(
	'new-messages-from-users'
	)->rawParams(
	$newMessagesLink,
	$newMessagesDiffLink
	)->numParams(
	$numAuthors,
	$plural
	);
	} else {
	// $numAuthors === 11 signifies "11 or more" ("more than 10")
	$newMessagesAlert = $this->msg(
	$numAuthors > 10 ? 'new-messages-from-many-users' : 'new-messages'
	)->rawParams(
	$newMessagesLink,
	$newMessagesDiffLink
	)->numParams( $plural );
	}
	$newMessagesAlert = $newMessagesAlert->parse();
	}

	return $newMessagesAlert;
	}

	/**
	* Get a cached notice
	*
	* @param string $name Message name, or 'default' for $wgSiteNotice
	* @return string\|false HTML fragment, or false to indicate that the caller
	* should fall back to the next notice in its sequence
	*/
	private function getCachedNotice( $name ) {
	$config = $this->getConfig();

	if ( $name === 'default' ) {
	// special case
	$notice = $config->get( MainConfigNames::SiteNotice );
	if ( !$notice ) {
	return false;
	}
	} else {
	$msg = $this->msg( $name )->inContentLanguage();
	if ( $msg->isBlank() ) {
	return '';
	} elseif ( $msg->isDisabled() ) {
	return false;
	}
	$notice = $msg->plain();
	}

	$services = MediaWikiServices::getInstance();
	$cache = $services->getMainWANObjectCache();
	$parsed = $cache->getWithSetCallback(
	// Use the extra hash appender to let eg SSL variants separately cache
	// Key is verified with md5 hash of unparsed wikitext
	$cache->makeKey(
	$name, $config->get( MainConfigNames::RenderHashAppend ), md5( $notice ) ),
	// TTL in seconds
	600,
	function () use ( $notice ) {
	return $this->getOutput()->parseAsInterface( $notice );
	}
	);

	$contLang = $services->getContentLanguage();
	return Html::rawElement(
	'div',
	[
	'class' => $name,
	'lang' => $contLang->getHtmlCode(),
	'dir' => $contLang->getDir()
	],
	$parsed
	);
	}

	/**
	* @return string HTML fragment
	*/
	public function getSiteNotice() {
	$siteNotice = '';

	if ( $this->getHookRunner()->onSiteNoticeBefore( $siteNotice, $this ) ) {
	if ( $this->getUser()->isRegistered() ) {
	$siteNotice = $this->getCachedNotice( 'sitenotice' );
	} else {
	$anonNotice = $this->getCachedNotice( 'anonnotice' );
	if ( $anonNotice === false ) {
	$siteNotice = $this->getCachedNotice( 'sitenotice' );
	} else {
	$siteNotice = $anonNotice;
	}
	}
	if ( $siteNotice === false ) {
	$siteNotice = $this->getCachedNotice( 'default' ) ?: '';
	}
	if ( $this->canUseWikiPage() ) {
	$ns = $this->getWikiPage()->getNamespace();
	$nsNotice = $this->getCachedNotice( "namespacenotice-$ns" );
	if ( $nsNotice ) {
	$siteNotice .= $nsNotice;
	}
	}
	if ( $siteNotice !== '' ) {
	$siteNotice = Html::rawElement( 'div', [ 'id' => 'localNotice', 'data-nosnippet' => '' ], $siteNotice );
	}
	}

	$this->getHookRunner()->onSiteNoticeAfter( $siteNotice, $this );
	if ( $this->getOptions()[ 'wrapSiteNotice' ] ) {
	$siteNotice = Html::rawElement( 'div', [ 'id' => 'siteNotice' ], $siteNotice );
	}
	return $siteNotice;
	}

	/**
	* Create a section edit link.
	*
	* @param Title $nt The title being linked to (may not be the same as
	* the current page, if the section is included from a template)
	* @param string $section The designation of the section being pointed to,
	* to be included in the link, like "&section=$section"
	* @param string $sectionTitle Section title. It is used in the link tooltip, escaped and
	* wrapped in the 'editsectionhint' message
	* @param Language $lang
	* @return string HTML to use for edit link
	*/
	public function doEditSectionLink( Title $nt, $section, $sectionTitle, Language $lang ) {
	// HTML generated here should probably have userlangattributes
	// added to it for LTR text on RTL pages

	$attribs = [];
	$attribs['title'] = $this->msg( 'editsectionhint' )->plaintextParams( $sectionTitle )
	->inLanguage( $lang )->text();

	$links = [
	'editsection' => [
	'icon' => 'edit',
	'text' => $this->msg( 'editsection' )->inLanguage( $lang )->text(),
	'targetTitle' => $nt,
	'attribs' => $attribs,
	'query' => [ 'action' => 'edit', 'section' => $section ]
	]
	];

	$this->getHookRunner()->onSkinEditSectionLinks( $this, $nt, $section, $sectionTitle, $links, $lang );

	$linkRenderer = MediaWikiServices::getInstance()->getLinkRenderer();
	$newLinks = [];
	$options = $this->defaultLinkOptions + [
	'class-as-property' => true,
	];
	$ctx = $this->getContext();
	foreach ( $links as $key => $linkDetails ) {
	$targetTitle = $linkDetails['targetTitle'];
	$attrs = $linkDetails['attribs'];
	$query = $linkDetails['query'];
	unset( $linkDetails['targetTitle'] );
	unset( $linkDetails['query'] );
	unset( $linkDetails['attribs'] );
	unset( $linkDetails['options' ] );
	$component = new SkinComponentLink(
	$key, $linkDetails + [
	'href' => Title::newFromLinkTarget( $targetTitle )->getLinkURL( $query, false ),
	] + $attrs, $ctx, $options
	);
	$newLinks[] = $component->getTemplateData();
	}
	return $this->doEditSectionLinksHTML( $newLinks, $lang );
	}

	/**
	* @stable to override by skins
	*
	* @param array $links
	* @param Language $lang
	* @return string
	*/
	protected function doEditSectionLinksHTML( array $links, Language $lang ) {
	$result = Html::openElement( 'span', [ 'class' => 'mw-editsection' ] );
	$result .= Html::rawElement( 'span', [ 'class' => 'mw-editsection-bracket' ], '[' );

	$linksHtml = [];
	foreach ( $links as $linkDetails ) {
	$linksHtml[] = $linkDetails['html'];
	}

	$result .= implode(
	Html::rawElement(
	'span',
	[ 'class' => 'mw-editsection-divider' ],
	$this->msg( 'pipe-separator' )->inLanguage( $lang )->escaped()
	),
	$linksHtml
	);

	$result .= Html::rawElement( 'span', [ 'class' => 'mw-editsection-bracket' ], ']' );
	$result .= Html::closeElement( 'span' );
	return $result;
	}

	/**
	* Create an array of common toolbox items from the data in the quicktemplate
	* stored by SkinTemplate.
	* The resulting array is built according to a format intended to be passed
	* through makeListItem to generate the html.
	* @param array $navUrls
	* @param array $feedUrls
	* @return array
	*/
	public function makeToolbox( $navUrls, $feedUrls ) {
	$toolbox = [];
	if ( $navUrls['whatlinkshere'] ?? null ) {
	$toolbox['whatlinkshere'] = $navUrls['whatlinkshere'];
	$toolbox['whatlinkshere']['id'] = 't-whatlinkshere';
	$toolbox['whatlinkshere']['icon'] = 'articleRedirect';
	}
	if ( $navUrls['recentchangeslinked'] ?? null ) {
	$toolbox['recentchangeslinked'] = $navUrls['recentchangeslinked'];
	$toolbox['recentchangeslinked']['msg'] = 'recentchangeslinked-toolbox';
	$toolbox['recentchangeslinked']['id'] = 't-recentchangeslinked';
	$toolbox['recentchangeslinked']['rel'] = 'nofollow';
	}
	if ( $feedUrls ) {
	$toolbox['feeds']['id'] = 'feedlinks';
	$toolbox['feeds']['links'] = [];
	foreach ( $feedUrls as $key => $feed ) {
	$toolbox['feeds']['links'][$key] = $feed;
	$toolbox['feeds']['links'][$key]['id'] = "feed-$key";
	$toolbox['feeds']['links'][$key]['rel'] = 'alternate';
	$toolbox['feeds']['links'][$key]['type'] = "application/{$key}+xml";
	$toolbox['feeds']['links'][$key]['class'] = 'feedlink';
	}
	}
	foreach ( [ 'contributions', 'log', 'blockip', 'changeblockip', 'unblockip',
	'emailuser', 'mute', 'userrights', 'upload', 'specialpages' ] as $special
	) {
	if ( $navUrls[$special] ?? null ) {
	$toolbox[$special] = $navUrls[$special];
	$toolbox[$special]['id'] = "t-$special";
	}
	}
	if ( $navUrls['print'] ?? null ) {
	$toolbox['print'] = $navUrls['print'];
	$toolbox['print']['id'] = 't-print';
	$toolbox['print']['rel'] = 'alternate';
	$toolbox['print']['msg'] = 'printableversion';
	}
	if ( $navUrls['permalink'] ?? null ) {
	$toolbox['permalink'] = $navUrls['permalink'];
	$toolbox['permalink']['id'] = 't-permalink';
	}
	if ( $navUrls['info'] ?? null ) {
	$toolbox['info'] = $navUrls['info'];
	$toolbox['info']['id'] = 't-info';
	}

	return $toolbox;
	}

	/**
	* Return an array of indicator data.
	* Can be used by subclasses but should not be extended.
	* @param array $indicators return value of OutputPage::getIndicators
	* @return array
	*/
	protected function getIndicatorsData( $indicators ) {
	$indicatorData = [];
	foreach ( $indicators as $id => $content ) {
	$indicatorData[] = [
	'id' => Sanitizer::escapeIdForAttribute( "mw-indicator-$id" ),
	'class' => 'mw-indicator',
	'html' => $content,
	];
	}
	return $indicatorData;
	}

	/**
	* Create an array of personal tools items from the data in the quicktemplate
	* stored by SkinTemplate.
	* The resulting array is built according to a format intended to be passed
	* through makeListItem to generate the html.
	* This is in reality the same list as already stored in personal_urls
	* however it is reformatted so that you can just pass the individual items
	* to makeListItem instead of hardcoding the element creation boilerplate.
	* @since 1.35
	* @param array $urls
	* @param bool $applyClassesToListItems (optional) when set behaves consistently with other menus,
	* applying the `class` property applies to list items. When not set will move the class to child links.
	* @return array[]
	*/
	final public function getPersonalToolsForMakeListItem( $urls, $applyClassesToListItems = false ) {
	$personal_tools = [];
	foreach ( $urls as $key => $plink ) {
	# The class on a personal_urls item is meant to go on the <a> instead
	# of the <li> so we have to use a single item "links" array instead
	# of using most of the personal_url's keys directly.
	$ptool = [
	'links' => [
	[ 'single-id' => "pt-$key" ],
	],
	'id' => "pt-$key",
	];
	if ( $applyClassesToListItems && isset( $plink['class'] ) ) {
	$ptool['class'] = $plink['class'];
	}
	if ( isset( $plink['active'] ) ) {
	$ptool['active'] = $plink['active'];
	}
	// Set class for the link to link-class, when defined.
	// This allows newer notifications content navigation to retain their classes
	// when merged back into the personal tools.
	// Doing this here allows the loop below to overwrite the class if defined directly.
	if ( isset( $plink['link-class'] ) ) {
	$ptool['links'][0]['class'] = $plink['link-class'];
	}
	$props = [
	'href',
	'text',
	'dir',
	'data',
	'exists',
	'data-mw',
	'link-html',
	];
	if ( !$applyClassesToListItems ) {
	$props[] = 'class';
	}
	foreach ( $props as $k ) {
	if ( isset( $plink[$k] ) ) {
	$ptool['links'][0][$k] = $plink[$k];
	}
	}
	$personal_tools[$key] = $ptool;
	}
	return $personal_tools;
	}

	/**
	* Makes a link, usually used by makeListItem to generate a link for an item
	* in a list used in navigation lists, portlets, portals, sidebars, etc...
	*
	* @since 1.35
	* @param string $key Usually a key from the list you are generating this
	* link from.
	* @param array $item Contains some of a specific set of keys.
	*
	* If "html" key is present, this will be returned. All other keys will be ignored.
	*
	* The text of the link will be generated either from the contents of the
	* "text" key in the $item array, if a "msg" key is present a message by
	* that name will be used, and if neither of those are set the $key will be
	* used as a message name.
	*
	* If a "href" key is not present makeLink will just output htmlescaped text.
	* The "href", "id", "class", "rel", and "type" keys are used as attributes
	* for the link if present.
	*
	* If an "id" or "single-id" (if you don't want the actual id to be output
	* on the link) is present it will be used to generate a tooltip and
	* accesskey for the link.
	*
	* The 'link-html' key can be used to prepend additional HTML inside the link HTML.
	* For example to prepend an icon.
	*
	* The keys "context" and "primary" are ignored; these keys are used
	* internally by skins and are not supposed to be included in the HTML
	* output.
	*
	* If you don't want an accesskey, set $item['tooltiponly'] = true;
	*
	* If a "data" key is present, it must be an array, where the keys represent
	* the data-xxx properties with their provided values. For example,
	* $item['data'] = [
	* 'foo' => 1,
	* 'bar' => 'baz',
	* ];
	* will render as element properties:
	* data-foo='1' data-bar='baz'
	*
	* The "class" key currently accepts both a string and an array of classes, but this will be
	* changed to only accept an array in the future.
	*
	* @param array $linkOptions Can be used to affect the output of a link.
	* Possible options are:
	* - 'text-wrapper' key to specify a list of elements to wrap the text of
	* a link in. This should be an array of arrays containing a 'tag' and
	* optionally an 'attributes' key. If you only have one element you don't
	* need to wrap it in another array. eg: To use <a><span>...</span></a>
	* in all links use [ 'text-wrapper' => [ 'tag' => 'span' ] ]
	* for your options.
	* - 'link-class' key can be used to specify additional classes to apply
	* to all links.
	* - 'link-fallback' can be used to specify a tag to use instead of "<a>"
	* if there is no link. eg: If you specify 'link-fallback' => 'span' than
	* any non-link will output a "<span>" instead of just text.
	*
	* @return string
	*/
	final public function makeLink( $key, $item, $linkOptions = [] ) {
	$options = $linkOptions + $this->defaultLinkOptions;
	$component = new SkinComponentLink(
	$key, $item, $this->getContext(), $options
	);
	return $component->getTemplateData()[ 'html' ];
	}

	/**
	* Generates a list item for a navigation, portlet, portal, sidebar... list
	*
	* @since 1.35
	* @param string $key Usually a key from the list you are generating this link from.
	* @param array $item Array of list item data containing some of a specific set of keys.
	* The "id", "class" and "itemtitle" keys will be used as attributes for the list item,
	* if "active" contains a value of true an "active" class will also be appended to class.
	* The "class" key currently accepts both a string and an array of classes, but this will be
	* changed to only accept an array in the future.
	* For further options see the $item parameter of {@link SkinComponentLink::makeLink()}.
	* @phan-param array{id?:string,html?:string,class?:string\|string[],itemtitle?:string,active?:bool} $item
	*
	* @param array $options
	* @phan-param array{tag?:string} $options
	*
	* If you want something other than a "<li>" you can pass a tag name such as
	* "tag" => "span" in the $options array to change the tag used.
	* link/content data for the list item may come in one of two forms
	* A "links" key may be used, in which case it should contain an array with
	* a list of links to include inside the list item, see makeLink for the
	* format of individual links array items.
	*
	* Otherwise the relevant keys from the list item $item array will be passed
	* to makeLink instead. Note however that "id" and "class" are used by the
	* list item directly so they will not be passed to makeLink
	* (however the link will still support a tooltip and accesskey from it)
	* If you need an id or class on a single link you should include a "links"
	* array with just one link item inside of it. You can also set "link-class" in
	* $item to set a class on the link itself. If you want to add a title
	* to the list item itself, you can set "itemtitle" to the value.
	* $options is also passed on to makeLink calls
	*
	* @return string
	*/
	final public function makeListItem( $key, $item, $options = [] ) {
	$component = new SkinComponentListItem(
	$key, $item, $this->getContext(), $options, $this->defaultLinkOptions
	);
	return $component->getTemplateData()[ 'html-item' ];
	}

	/**
	* Allows extensions to hook into known portlets and add stuff to them.
	* Unlike its BaseTemplate counterpart, this method does not wrap the html
	* provided by the hook in a div.
	*
	* @param string $name
	*
	* @return string html
	* @since 1.35
	*/
	public function getAfterPortlet( string $name ): string {
	$html = '';

	$this->getHookRunner()->onSkinAfterPortlet( $this, $name, $html );

	return $html;
	}

	/**
	* Prepare the subtitle of the page for output in the skin if one has been set.
	* @since 1.35
	* @param bool $withContainer since 1.40, when provided the mw-content-subtitle element will be output too.
	* @return string HTML
	*/
	final public function prepareSubtitle( bool $withContainer = true ) {
	$out = $this->getOutput();
	$subpagestr = $this->subPageSubtitleInternal();
	if ( $subpagestr !== '' ) {
	$subpagestr = Html::rawElement( 'div', [ 'class' => 'subpages' ], $subpagestr );
	}
	$html = $subpagestr . $out->getSubtitle();
	return $withContainer ? Html::rawElement( 'div', [
	'id' => 'mw-content-subtitle',
	] + $this->getUserLanguageAttributes(), $html ) : $html;
	}

	/**
	* Returns array of config variables that should be added only to this skin
	* for use in JavaScript.
	* Skins can override this to add variables to the page.
	* @since 1.38 or 1.35 if extending SkinTemplate.
	* @return array
	*/
	protected function getJsConfigVars(): array {
	return [];
	}

	/**
	* Get user language attribute links array
	*
	* @return array HTML attributes
	*/
	final protected function getUserLanguageAttributes() {
	$userLang = $this->getLanguage();
	$userLangCode = $userLang->getHtmlCode();
	$userLangDir = $userLang->getDir();
	$contLang = MediaWikiServices::getInstance()->getContentLanguage();
	if (
	$userLangCode !== $contLang->getHtmlCode() \|\|
	$userLangDir !== $contLang->getDir()
	) {
	return [
	'lang' => $userLangCode,
	'dir' => $userLangDir,
	];
	}
	return [];
	}

	/**
	* Prepare user language attribute links
	* @since 1.38 on Skin and 1.35 on classes extending SkinTemplate
	* @return string HTML attributes
	*/
	final protected function prepareUserLanguageAttributes() {
	return Html::expandAttributes(
	$this->getUserLanguageAttributes()
	);
	}

	/**
	* Prepare undelete link for output in page.
	* @since 1.38 on Skin and 1.35 on classes extending SkinTemplate
	* @return null\|string HTML, or null if there is no undelete link.
	*/
	final protected function prepareUndeleteLink() {
	$undelete = $this->getUndeleteLink();
	return $undelete === '' ? null : '<div class="subpages">' . $undelete . '</div>';
	}

	/**
	* Wrap the body text with language information and identifiable element
	*
	* @since 1.38 in Skin, previously was a method of SkinTemplate
	* @param Title $title
	* @param string $html body text
	* @return string html
	*/
	protected function wrapHTML( $title, $html ) {
	// This wraps the "real" body content (i.e. parser output or special page).
	// On page views, elements like categories and contentSub are outside of this.
	return Html::rawElement( 'div', [
	'id' => 'mw-content-text',
	'class' => [
	'mw-body-content',
	],
	], $html );
	}

	/**
	* Get current skin's options
	*
	* For documentation about supported options, refer to the Skin constructor.
	*
	* @internal Please call SkinFactory::getSkinOptions instead. See Skin::__construct for documentation.
	* @return array
	*/
	final public function getOptions(): array {
	return $this->options + [
	'styles' => [],
	'scripts' => [],
	'toc' => true,
	'format' => 'html',
	'bodyClasses' => [],
	'clientPrefEnabled' => false,
	'responsive' => false,
	'supportsMwHeading' => false,
	'link' => [],
	'tempUserBanner' => false,
	'wrapSiteNotice' => false,
	'menus' => [
	// Legacy keys that are enabled by default for backwards compatibility
	'namespaces',
	'views',
	'actions',
	'variants',
	// Opt-in menus
	// * 'associated-pages'
	// * 'notifications'
	// * 'user-interface-preferences',
	// * 'user-page',
	// * 'user-menu',
	]
	];
	}

	/**
	* Does the skin support the named menu? e.g. has it declared that it
	* will render a menu with the given ID?
	*
	* @since 1.39
	* @param string $menu See Skin::__construct for menu names.
	* @return bool
	*/
	public function supportsMenu( string $menu ): bool {
	$options = $this->getOptions();
	return in_array( $menu, $options['menus'] );
	}

	/**
	* Returns skin options for portlet links, used by addPortletLink
	*
	* @internal
	* @param RL\Context $context
	* @return array $linkOptions
	* - 'text-wrapper' key to specify a list of elements to wrap the text of
	* a link in. This should be an array of arrays containing a 'tag' and
	* optionally an 'attributes' key. If you only have one element you don't
	* need to wrap it in another array. eg: To use <a><span>...</span></a>
	* in all links use [ 'text-wrapper' => [ 'tag' => 'span' ] ]
	* for your options. If text-wrapper contains multiple entries they are
	* interpreted as going from the outer wrapper to the inner wrapper.
	*/
	public static function getPortletLinkOptions( RL\Context $context ): array {
	$skinName = $context->getSkin();
	$skinFactory = MediaWikiServices::getInstance()->getSkinFactory();
	$options = $skinFactory->getSkinOptions( $skinName );
	$portletLinkOptions = $options['link'] ?? [];
	// Normalize link options to always have this key
	$portletLinkOptions += [ 'text-wrapper' => [] ];
	// Normalize text-wrapper to always be an array of arrays
	if ( isset( $portletLinkOptions['text-wrapper']['tag'] ) ) {
	$portletLinkOptions['text-wrapper'] = [ $portletLinkOptions['text-wrapper'] ];
	}
	return $portletLinkOptions;
	}

	/**
	* @param string $name of the portal e.g. p-personal the name is personal.
	* @param array $items that are accepted input to Skin::makeListItem
	*
	* @return array data that can be passed to a Mustache template that
	* represents a single menu.
	*/
	final protected function getPortletData( string $name, array $items ): array {
	$portletComponent = new SkinComponentMenu(
	$name,
	$items,
	$this->getContext(),
	'',
	$this->defaultLinkOptions,
	$this->getAfterPortlet( $name )
	);
	return $portletComponent->getTemplateData();
	}
	}

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