first commit

11 files changed, 4498 insertions, 0 deletions

diff --git a/www/wiki/includes/skins/BaseTemplate.php b/www/wiki/includes/skins/BaseTemplate.php
new file mode 100644
index 00000000..e1f2969a
--- /dev/null
+++ b/www/wiki/includes/skins/BaseTemplate.php
@@ -0,0 +1,767 @@
+<?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
+ */
+
+/**
+ * New base template for a skin's template extended from QuickTemplate
+ * this class features helper methods that provide common ways of interacting
+ * with the data stored in the QuickTemplate
+ */
+abstract class BaseTemplate extends QuickTemplate {
+
+	/**
+	 * Get a Message object with its context set
+	 *
+	 * @param string $name Message name
+	 * @param mixed $params,... Message params
+	 * @return Message
+	 */
+	public function getMsg( $name /* ... */ ) {
+		return call_user_func_array( [ $this->getSkin(), 'msg' ], func_get_args() );
+	}
+
+	function msg( $str ) {
+		echo $this->getMsg( $str )->escaped();
+	}
+
+	function msgHtml( $str ) {
+		echo $this->getMsg( $str )->text();
+	}
+
+	function msgWiki( $str ) {
+		echo $this->getMsg( $str )->parseAsBlock();
+	}
+
+	/**
+	 * 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.
+	 * @return array
+	 */
+	function getToolbox() {
+		$toolbox = [];
+		if ( isset( $this->data['nav_urls']['whatlinkshere'] )
+			&& $this->data['nav_urls']['whatlinkshere']
+		) {
+			$toolbox['whatlinkshere'] = $this->data['nav_urls']['whatlinkshere'];
+			$toolbox['whatlinkshere']['id'] = 't-whatlinkshere';
+		}
+		if ( isset( $this->data['nav_urls']['recentchangeslinked'] )
+			&& $this->data['nav_urls']['recentchangeslinked']
+		) {
+			$toolbox['recentchangeslinked'] = $this->data['nav_urls']['recentchangeslinked'];
+			$toolbox['recentchangeslinked']['msg'] = 'recentchangeslinked-toolbox';
+			$toolbox['recentchangeslinked']['id'] = 't-recentchangeslinked';
+			$toolbox['recentchangeslinked']['rel'] = 'nofollow';
+		}
+		if ( isset( $this->data['feeds'] ) && $this->data['feeds'] ) {
+			$toolbox['feeds']['id'] = 'feedlinks';
+			$toolbox['feeds']['links'] = [];
+			foreach ( $this->data['feeds'] 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', 'emailuser',
+			'userrights', 'upload', 'specialpages' ] as $special
+		) {
+			if ( isset( $this->data['nav_urls'][$special] ) && $this->data['nav_urls'][$special] ) {
+				$toolbox[$special] = $this->data['nav_urls'][$special];
+				$toolbox[$special]['id'] = "t-$special";
+			}
+		}
+		if ( isset( $this->data['nav_urls']['print'] ) && $this->data['nav_urls']['print'] ) {
+			$toolbox['print'] = $this->data['nav_urls']['print'];
+			$toolbox['print']['id'] = 't-print';
+			$toolbox['print']['rel'] = 'alternate';
+			$toolbox['print']['msg'] = 'printableversion';
+		}
+		if ( isset( $this->data['nav_urls']['permalink'] ) && $this->data['nav_urls']['permalink'] ) {
+			$toolbox['permalink'] = $this->data['nav_urls']['permalink'];
+			$toolbox['permalink']['id'] = 't-permalink';
+		}
+		if ( isset( $this->data['nav_urls']['info'] ) && $this->data['nav_urls']['info'] ) {
+			$toolbox['info'] = $this->data['nav_urls']['info'];
+			$toolbox['info']['id'] = 't-info';
+		}
+
+		// Avoid PHP 7.1 warning from passing $this by reference
+		$template = $this;
+		Hooks::run( 'BaseTemplateToolbox', [ &$template, &$toolbox ] );
+		return $toolbox;
+	}
+
+	/**
+	 * 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.
+	 * @return array
+	 */
+	function getPersonalTools() {
+		$personal_tools = [];
+		foreach ( $this->get( 'personal_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 ( isset( $plink['active'] ) ) {
+				$ptool['active'] = $plink['active'];
+			}
+			foreach ( [ 'href', 'class', 'text', 'dir', 'data', 'exists' ] as $k ) {
+				if ( isset( $plink[$k] ) ) {
+					$ptool['links'][0][$k] = $plink[$k];
+				}
+			}
+			$personal_tools[$key] = $ptool;
+		}
+		return $personal_tools;
+	}
+
+	function getSidebar( $options = [] ) {
+		// Force the rendering of the following portals
+		$sidebar = $this->data['sidebar'];
+		if ( !isset( $sidebar['SEARCH'] ) ) {
+			$sidebar['SEARCH'] = true;
+		}
+		if ( !isset( $sidebar['TOOLBOX'] ) ) {
+			$sidebar['TOOLBOX'] = true;
+		}
+		if ( !isset( $sidebar['LANGUAGES'] ) ) {
+			$sidebar['LANGUAGES'] = true;
+		}
+
+		if ( !isset( $options['search'] ) || $options['search'] !== true ) {
+			unset( $sidebar['SEARCH'] );
+		}
+		if ( isset( $options['toolbox'] ) && $options['toolbox'] === false ) {
+			unset( $sidebar['TOOLBOX'] );
+		}
+		if ( isset( $options['languages'] ) && $options['languages'] === false ) {
+			unset( $sidebar['LANGUAGES'] );
+		}
+
+		$boxes = [];
+		foreach ( $sidebar as $boxName => $content ) {
+			if ( $content === false ) {
+				continue;
+			}
+			switch ( $boxName ) {
+				case 'SEARCH':
+					// Search is a special case, skins should custom implement this
+					$boxes[$boxName] = [
+						'id' => 'p-search',
+						'header' => $this->getMsg( 'search' )->text(),
+						'generated' => false,
+						'content' => true,
+					];
+					break;
+				case 'TOOLBOX':
+					$msgObj = $this->getMsg( 'toolbox' );
+					$boxes[$boxName] = [
+						'id' => 'p-tb',
+						'header' => $msgObj->exists() ? $msgObj->text() : 'toolbox',
+						'generated' => false,
+						'content' => $this->getToolbox(),
+					];
+					break;
+				case 'LANGUAGES':
+					if ( $this->data['language_urls'] !== false ) {
+						$msgObj = $this->getMsg( 'otherlanguages' );
+						$boxes[$boxName] = [
+							'id' => 'p-lang',
+							'header' => $msgObj->exists() ? $msgObj->text() : 'otherlanguages',
+							'generated' => false,
+							'content' => $this->data['language_urls'] ?: [],
+						];
+					}
+					break;
+				default:
+					$msgObj = $this->getMsg( $boxName );
+					$boxes[$boxName] = [
+						'id' => "p-$boxName",
+						'header' => $msgObj->exists() ? $msgObj->text() : $boxName,
+						'generated' => true,
+						'content' => $content,
+					];
+					break;
+			}
+		}
+
+		// HACK: Compatibility with extensions still using SkinTemplateToolboxEnd
+		$hookContents = null;
+		if ( isset( $boxes['TOOLBOX'] ) ) {
+			ob_start();
+			// We pass an extra 'true' at the end so extensions using BaseTemplateToolbox
+			// can abort and avoid outputting double toolbox links
+			// Avoid PHP 7.1 warning from passing $this by reference
+			$template = $this;
+			Hooks::run( 'SkinTemplateToolboxEnd', [ &$template, true ] );
+			$hookContents = ob_get_contents();
+			ob_end_clean();
+			if ( !trim( $hookContents ) ) {
+				$hookContents = null;
+			}
+		}
+		// END hack
+
+		if ( isset( $options['htmlOnly'] ) && $options['htmlOnly'] === true ) {
+			foreach ( $boxes as $boxName => $box ) {
+				if ( is_array( $box['content'] ) ) {
+					$content = '<ul>';
+					foreach ( $box['content'] as $key => $val ) {
+						$content .= "\n	" . $this->makeListItem( $key, $val );
+					}
+					// HACK, shove the toolbox end onto the toolbox if we're rendering itself
+					if ( $hookContents ) {
+						$content .= "\n	$hookContents";
+					}
+					// END hack
+					$content .= "\n</ul>\n";
+					$boxes[$boxName]['content'] = $content;
+				}
+			}
+		} else {
+			if ( $hookContents ) {
+				$boxes['TOOLBOXEND'] = [
+					'id' => 'p-toolboxend',
+					'header' => $boxes['TOOLBOX']['header'],
+					'generated' => false,
+					'content' => "<ul>{$hookContents}</ul>",
+				];
+				// HACK: Make sure that TOOLBOXEND is sorted next to TOOLBOX
+				$boxes2 = [];
+				foreach ( $boxes as $key => $box ) {
+					if ( $key === 'TOOLBOXEND' ) {
+						continue;
+					}
+					$boxes2[$key] = $box;
+					if ( $key === 'TOOLBOX' ) {
+						$boxes2['TOOLBOXEND'] = $boxes['TOOLBOXEND'];
+					}
+				}
+				$boxes = $boxes2;
+				// END hack
+			}
+		}
+
+		return $boxes;
+	}
+
+	/**
+	 * @param string $name
+	 */
+	protected function renderAfterPortlet( $name ) {
+		echo $this->getAfterPortlet( $name );
+	}
+
+	/**
+	 * Allows extensions to hook into known portlets and add stuff to them
+	 *
+	 * @param string $name
+	 *
+	 * @return string html
+	 * @since 1.29
+	 */
+	protected function getAfterPortlet( $name ) {
+		$html = '';
+		$content = '';
+		Hooks::run( 'BaseTemplateAfterPortlet', [ $this, $name, &$content ] );
+
+		if ( $content !== '' ) {
+			$html = Html::rawElement(
+				'div',
+				[ 'class' => [ 'after-portlet', 'after-portlet-' . $name ] ],
+				$content
+			);
+		}
+
+		return $html;
+	}
+
+	/**
+	 * 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...
+	 *
+	 * @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.
+	 *
+	 * 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 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'
+	 *
+	 * @param array $options 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
+	 */
+	function makeLink( $key, $item, $options = [] ) {
+		if ( isset( $item['text'] ) ) {
+			$text = $item['text'];
+		} else {
+			$text = wfMessage( isset( $item['msg'] ) ? $item['msg'] : $key )->text();
+		}
+
+		$html = htmlspecialchars( $text );
+
+		if ( isset( $options['text-wrapper'] ) ) {
+			$wrapper = $options['text-wrapper'];
+			if ( isset( $wrapper['tag'] ) ) {
+				$wrapper = [ $wrapper ];
+			}
+			while ( count( $wrapper ) > 0 ) {
+				$element = array_pop( $wrapper );
+				$html = Html::rawElement( $element['tag'], isset( $element['attributes'] )
+					? $element['attributes']
+					: null, $html );
+			}
+		}
+
+		if ( isset( $item['href'] ) || isset( $options['link-fallback'] ) ) {
+			$attrs = $item;
+			foreach ( [ 'single-id', 'text', 'msg', 'tooltiponly', 'context', 'primary',
+				'tooltip-params', 'exists' ] as $k ) {
+				unset( $attrs[$k] );
+			}
+
+			if ( isset( $attrs['data'] ) ) {
+				foreach ( $attrs['data'] as $key => $value ) {
+					$attrs[ 'data-' . $key ] = $value;
+				}
+				unset( $attrs[ 'data' ] );
+			}
+
+			if ( isset( $item['id'] ) && !isset( $item['single-id'] ) ) {
+				$item['single-id'] = $item['id'];
+			}
+
+			$tooltipParams = [];
+			if ( isset( $item['tooltip-params'] ) ) {
+				$tooltipParams = $item['tooltip-params'];
+			}
+
+			if ( isset( $item['single-id'] ) ) {
+				$tooltipOption = isset( $item['exists'] ) && $item['exists'] === false ? 'nonexisting' : null;
+
+				if ( isset( $item['tooltiponly'] ) && $item['tooltiponly'] ) {
+					$title = Linker::titleAttrib( $item['single-id'], $tooltipOption, $tooltipParams );
+					if ( $title !== false ) {
+						$attrs['title'] = $title;
+					}
+				} else {
+					$tip = Linker::tooltipAndAccesskeyAttribs(
+						$item['single-id'],
+						$tooltipParams,
+						$tooltipOption
+					);
+					if ( isset( $tip['title'] ) && $tip['title'] !== false ) {
+						$attrs['title'] = $tip['title'];
+					}
+					if ( isset( $tip['accesskey'] ) && $tip['accesskey'] !== false ) {
+						$attrs['accesskey'] = $tip['accesskey'];
+					}
+				}
+			}
+			if ( isset( $options['link-class'] ) ) {
+				if ( isset( $attrs['class'] ) ) {
+					$attrs['class'] .= " {$options['link-class']}";
+				} else {
+					$attrs['class'] = $options['link-class'];
+				}
+			}
+			$html = Html::rawElement( isset( $attrs['href'] )
+				? 'a'
+				: $options['link-fallback'], $attrs, $html );
+		}
+
+		return $html;
+	}
+
+	/**
+	 * Generates a list item for a navigation, portlet, portal, sidebar... list
+	 *
+	 * @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 a "active" class will also be appended to class.
+	 *
+	 * @param array $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
+	 */
+	function makeListItem( $key, $item, $options = [] ) {
+		if ( isset( $item['links'] ) ) {
+			$links = [];
+			foreach ( $item['links'] as $linkKey => $link ) {
+				$links[] = $this->makeLink( $linkKey, $link, $options );
+			}
+			$html = implode( ' ', $links );
+		} else {
+			$link = $item;
+			// These keys are used by makeListItem and shouldn't be passed on to the link
+			foreach ( [ 'id', 'class', 'active', 'tag', 'itemtitle' ] as $k ) {
+				unset( $link[$k] );
+			}
+			if ( isset( $item['id'] ) && !isset( $item['single-id'] ) ) {
+				// The id goes on the <li> not on the <a> for single links
+				// but makeSidebarLink still needs to know what id to use when
+				// generating tooltips and accesskeys.
+				$link['single-id'] = $item['id'];
+			}
+			if ( isset( $link['link-class'] ) ) {
+				// link-class should be set on the <a> itself,
+				// so pass it in as 'class'
+				$link['class'] = $link['link-class'];
+				unset( $link['link-class'] );
+			}
+			$html = $this->makeLink( $key, $link, $options );
+		}
+
+		$attrs = [];
+		foreach ( [ 'id', 'class' ] as $attr ) {
+			if ( isset( $item[$attr] ) ) {
+				$attrs[$attr] = $item[$attr];
+			}
+		}
+		if ( isset( $item['active'] ) && $item['active'] ) {
+			if ( !isset( $attrs['class'] ) ) {
+				$attrs['class'] = '';
+			}
+			$attrs['class'] .= ' active';
+			$attrs['class'] = trim( $attrs['class'] );
+		}
+		if ( isset( $item['itemtitle'] ) ) {
+			$attrs['title'] = $item['itemtitle'];
+		}
+		return Html::rawElement( isset( $options['tag'] ) ? $options['tag'] : 'li', $attrs, $html );
+	}
+
+	function makeSearchInput( $attrs = [] ) {
+		$realAttrs = [
+			'type' => 'search',
+			'name' => 'search',
+			'placeholder' => wfMessage( 'searchsuggest-search' )->text(),
+		];
+		$realAttrs = array_merge( $realAttrs, Linker::tooltipAndAccesskeyAttribs( 'search' ), $attrs );
+		return Html::element( 'input', $realAttrs );
+	}
+
+	function makeSearchButton( $mode, $attrs = [] ) {
+		switch ( $mode ) {
+			case 'go':
+			case 'fulltext':
+				$realAttrs = [
+					'type' => 'submit',
+					'name' => $mode,
+					'value' => wfMessage( $mode == 'go' ? 'searcharticle' : 'searchbutton' )->text(),
+				];
+				$realAttrs = array_merge(
+					$realAttrs,
+					Linker::tooltipAndAccesskeyAttribs( "search-$mode" ),
+					$attrs
+				);
+				return Html::element( 'input', $realAttrs );
+			case 'image':
+				$buttonAttrs = [
+					'type' => 'submit',
+					'name' => 'button',
+				];
+				$buttonAttrs = array_merge(
+					$buttonAttrs,
+					Linker::tooltipAndAccesskeyAttribs( 'search-fulltext' ),
+					$attrs
+				);
+				unset( $buttonAttrs['src'] );
+				unset( $buttonAttrs['alt'] );
+				unset( $buttonAttrs['width'] );
+				unset( $buttonAttrs['height'] );
+				$imgAttrs = [
+					'src' => $attrs['src'],
+					'alt' => isset( $attrs['alt'] )
+						? $attrs['alt']
+						: wfMessage( 'searchbutton' )->text(),
+					'width' => isset( $attrs['width'] ) ? $attrs['width'] : null,
+					'height' => isset( $attrs['height'] ) ? $attrs['height'] : null,
+				];
+				return Html::rawElement( 'button', $buttonAttrs, Html::element( 'img', $imgAttrs ) );
+			default:
+				throw new MWException( 'Unknown mode passed to BaseTemplate::makeSearchButton' );
+		}
+	}
+
+	/**
+	 * Returns an array of footerlinks trimmed down to only those footer links that
+	 * are valid.
+	 * If you pass "flat" as an option then the returned array will be a flat array
+	 * of footer icons instead of a key/value array of footerlinks arrays broken
+	 * up into categories.
+	 * @param string $option
+	 * @return array|mixed
+	 */
+	function getFooterLinks( $option = null ) {
+		$footerlinks = $this->get( 'footerlinks' );
+
+		// Reduce footer links down to only those which are being used
+		$validFooterLinks = [];
+		foreach ( $footerlinks as $category => $links ) {
+			$validFooterLinks[$category] = [];
+			foreach ( $links as $link ) {
+				if ( isset( $this->data[$link] ) && $this->data[$link] ) {
+					$validFooterLinks[$category][] = $link;
+				}
+			}
+			if ( count( $validFooterLinks[$category] ) <= 0 ) {
+				unset( $validFooterLinks[$category] );
+			}
+		}
+
+		if ( $option == 'flat' ) {
+			// fold footerlinks into a single array using a bit of trickery
+			$validFooterLinks = call_user_func_array(
+				'array_merge',
+				array_values( $validFooterLinks )
+			);
+		}
+
+		return $validFooterLinks;
+	}
+
+	/**
+	 * Returns an array of footer icons filtered down by options relevant to how
+	 * the skin wishes to display them.
+	 * If you pass "icononly" as the option all footer icons which do not have an
+	 * image icon set will be filtered out.
+	 * If you pass "nocopyright" then MediaWiki's copyright icon will not be included
+	 * in the list of footer icons. This is mostly useful for skins which only
+	 * display the text from footericons instead of the images and don't want a
+	 * duplicate copyright statement because footerlinks already rendered one.
+	 * @param string $option
+	 * @return array
+	 */
+	function getFooterIcons( $option = null ) {
+		// Generate additional footer icons
+		$footericons = $this->get( 'footericons' );
+
+		if ( $option == 'icononly' ) {
+			// Unset any icons which don't have an image
+			foreach ( $footericons as &$footerIconsBlock ) {
+				foreach ( $footerIconsBlock as $footerIconKey => $footerIcon ) {
+					if ( !is_string( $footerIcon ) && !isset( $footerIcon['src'] ) ) {
+						unset( $footerIconsBlock[$footerIconKey] );
+					}
+				}
+			}
+			// Redo removal of any empty blocks
+			foreach ( $footericons as $footerIconsKey => &$footerIconsBlock ) {
+				if ( count( $footerIconsBlock ) <= 0 ) {
+					unset( $footericons[$footerIconsKey] );
+				}
+			}
+		} elseif ( $option == 'nocopyright' ) {
+			unset( $footericons['copyright']['copyright'] );
+			if ( count( $footericons['copyright'] ) <= 0 ) {
+				unset( $footericons['copyright'] );
+			}
+		}
+
+		return $footericons;
+	}
+
+	/**
+	 * Renderer for getFooterIcons and getFooterLinks
+	 *
+	 * @param string $iconStyle $option for getFooterIcons: "icononly", "nocopyright"
+	 * @param string $linkStyle $option for getFooterLinks: "flat"
+	 *
+	 * @return string html
+	 * @since 1.29
+	 */
+	protected function getFooter( $iconStyle = 'icononly', $linkStyle = 'flat' ) {
+		$validFooterIcons = $this->getFooterIcons( $iconStyle );
+		$validFooterLinks = $this->getFooterLinks( $linkStyle );
+
+		$html = '';
+
+		if ( count( $validFooterIcons ) + count( $validFooterLinks ) > 0 ) {
+			$html .= Html::openElement( 'div', [
+				'id' => 'footer-bottom',
+				'role' => 'contentinfo',
+				'lang' => $this->get( 'userlang' ),
+				'dir' => $this->get( 'dir' )
+			] );
+			$footerEnd = Html::closeElement( 'div' );
+		} else {
+			$footerEnd = '';
+		}
+		foreach ( $validFooterIcons as $blockName => $footerIcons ) {
+			$html .= Html::openElement( 'div', [
+				'id' => Sanitizer::escapeIdForAttribute( "f-{$blockName}ico" ),
+				'class' => 'footer-icons'
+			] );
+			foreach ( $footerIcons as $icon ) {
+				$html .= $this->getSkin()->makeFooterIcon( $icon );
+			}
+			$html .= Html::closeElement( 'div' );
+		}
+		if ( count( $validFooterLinks ) > 0 ) {
+			$html .= Html::openElement( 'ul', [ 'id' => 'f-list', 'class' => 'footer-places' ] );
+			foreach ( $validFooterLinks as $aLink ) {
+				$html .= Html::rawElement(
+					'li',
+					[ 'id' => Sanitizer::escapeIdForAttribute( $aLink ) ],
+					$this->get( $aLink )
+				);
+			}
+			$html .= Html::closeElement( 'ul' );
+		}
+
+		$html .= $this->getClear() . $footerEnd;
+
+		return $html;
+	}
+
+	/**
+	 * Get a div with the core visualClear class, for clearing floats
+	 *
+	 * @return string html
+	 * @since 1.29
+	 */
+	protected function getClear() {
+		return Html::element( 'div', [ 'class' => 'visualClear' ] );
+	}
+
+	/**
+	 * Get the suggested HTML for page status indicators: icons (or short text snippets) usually
+	 * displayed in the top-right corner of the page, outside of the main content.
+	 *
+	 * Your skin may implement this differently, for example by handling some indicator names
+	 * specially with a different UI. However, it is recommended to use a `<div class="mw-indicator"
+	 * id="mw-indicator-<id>" />` as a wrapper element for each indicator, for better compatibility
+	 * with extensions and user scripts.
+	 *
+	 * The raw data is available in `$this->data['indicators']` as an associative array (keys:
+	 * identifiers, values: contents) internally ordered by keys.
+	 *
+	 * @return string HTML
+	 * @since 1.25
+	 */
+	public function getIndicators() {
+		$out = "<div class=\"mw-indicators mw-body-content\">\n";
+		foreach ( $this->data['indicators'] as $id => $content ) {
+			$out .= Html::rawElement(
+				'div',
+				[
+					'id' => Sanitizer::escapeIdForAttribute( "mw-indicator-$id" ),
+					'class' => 'mw-indicator',
+				],
+				$content
+			) . "\n";
+		}
+		$out .= "</div>\n";
+		return $out;
+	}
+
+	/**
+	 * Output getTrail
+	 */
+	function printTrail() {
+		echo $this->getTrail();
+	}
+
+	/**
+	 * Get the basic end-page trail including bottomscripts, reporttime, and
+	 * debug stuff. This should be called right before outputting the closing
+	 * body and html tags.
+	 *
+	 * @return string
+	 * @since 1.29
+	 */
+	function getTrail() {
+		$html = MWDebug::getDebugHTML( $this->getSkin()->getContext() );
+		$html .= $this->get( 'bottomscripts' );
+		$html .= $this->get( 'reporttime' );
+
+		return $html;
+	}
+}
diff --git a/www/wiki/includes/skins/MediaWikiI18N.php b/www/wiki/includes/skins/MediaWikiI18N.php
new file mode 100644
index 00000000..731897e4
--- /dev/null
+++ b/www/wiki/includes/skins/MediaWikiI18N.php
@@ -0,0 +1,60 @@
+<?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
+ */
+
+/**
+ * Wrapper object for MediaWiki's localization functions,
+ * to be passed to the template engine.
+ *
+ * @private
+ * @ingroup Skins
+ */
+class MediaWikiI18N {
+	private $context = [];
+
+	/**
+	 * @deprecate since 1.31 Use BaseTemplate::msg() or Skin::msg() instead for setting
+	 *  message parameters.
+	 */
+	function set( $varName, $value ) {
+		wfDeprecated( __METHOD__, '1.31' );
+		$this->context[$varName] = $value;
+	}
+
+	/**
+	 * @deprecate since 1.31 Use BaseTemplate::msg(), Skin::msg(), or wfMessage() instead.
+	 */
+	function translate( $value ) {
+		wfDeprecated( __METHOD__, '1.31' );
+		// Hack for i18n:attributes in PHPTAL 1.0.0 dev version as of 2004-10-23
+		$value = preg_replace( '/^string:/', '', $value );
+
+		$value = wfMessage( $value )->text();
+		// interpolate variables
+		$m = [];
+		while ( preg_match( '/\$([0-9]*?)/sm', $value, $m ) ) {
+			list( $src, $var ) = $m;
+			Wikimedia\suppressWarnings();
+			$varValue = $this->context[$var];
+			Wikimedia\restoreWarnings();
+			$value = str_replace( $src, $varValue, $value );
+		}
+		return $value;
+	}
+}
diff --git a/www/wiki/includes/skins/QuickTemplate.php b/www/wiki/includes/skins/QuickTemplate.php
new file mode 100644
index 00000000..18867464
--- /dev/null
+++ b/www/wiki/includes/skins/QuickTemplate.php
@@ -0,0 +1,207 @@
+<?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\MediaWikiServices;
+
+/**
+ * Generic wrapper for template functions, with interface
+ * compatible with what we use of PHPTAL 0.7.
+ * @ingroup Skins
+ */
+abstract class QuickTemplate {
+
+	/**
+	 * @var array
+	 */
+	public $data;
+
+	/**
+	 * @var MediaWikiI18N
+	 */
+	public $translator;
+
+	/** @var Config $config */
+	protected $config;
+
+	/**
+	 * @param Config $config
+	 */
+	function __construct( Config $config = null ) {
+		$this->data = [];
+		$this->translator = new MediaWikiI18N();
+		if ( $config === null ) {
+			wfDebug( __METHOD__ . ' was called with no Config instance passed to it' );
+			$config = MediaWikiServices::getInstance()->getMainConfig();
+		}
+		$this->config = $config;
+	}
+
+	/**
+	 * Sets the value $value to $name
+	 * @param string $name
+	 * @param mixed $value
+	 */
+	public function set( $name, $value ) {
+		$this->data[$name] = $value;
+	}
+
+	/**
+	 * extends the value of data with name $name with the value $value
+	 * @since 1.25
+	 * @param string $name
+	 * @param mixed $value
+	 */
+	public function extend( $name, $value ) {
+		if ( $this->haveData( $name ) ) {
+			$this->data[$name] = $this->data[$name] . $value;
+		} else {
+			$this->data[$name] = $value;
+		}
+	}
+
+	/**
+	 * Gets the template data requested
+	 * @since 1.22
+	 * @param string $name Key for the data
+	 * @param mixed $default Optional default (or null)
+	 * @return mixed The value of the data requested or the deafult
+	 */
+	public function get( $name, $default = null ) {
+		if ( isset( $this->data[$name] ) ) {
+			return $this->data[$name];
+		} else {
+			return $default;
+		}
+	}
+
+	/**
+	 * @deprecated since 1.31 This function is a now-redundant optimisation intended
+	 *  for very old versions of PHP. The use of references here makes the code
+	 *  more fragile and is incompatible with plans like T140664. Use set() instead.
+	 * @param string $name
+	 * @param mixed &$value
+	 */
+	public function setRef( $name, &$value ) {
+		wfDeprecated( __METHOD__, '1.31' );
+		$this->data[$name] =& $value;
+	}
+
+	/**
+	 * @param MediaWikiI18N &$t
+	 * @deprecate since 1.31 Use BaseTemplate::msg() or Skin::msg() instead for setting
+	 *  message parameters.
+	 */
+	public function setTranslator( &$t ) {
+		wfDeprecated( __METHOD__, '1.31' );
+		$this->translator = &$t;
+	}
+
+	/**
+	 * Main function, used by classes that subclass QuickTemplate
+	 * to show the actual HTML output
+	 */
+	abstract public function execute();
+
+	/**
+	 * @private
+	 * @param string $str
+	 */
+	function text( $str ) {
+		echo htmlspecialchars( $this->data[$str] );
+	}
+
+	/**
+	 * @private
+	 * @param string $str
+	 */
+	function html( $str ) {
+		echo $this->data[$str];
+	}
+
+	/**
+	 * @private
+	 * @param string $msgKey
+	 */
+	function msg( $msgKey ) {
+		echo htmlspecialchars( wfMessage( $msgKey )->text() );
+	}
+
+	/**
+	 * @private
+	 * @param string $msgKey
+	 */
+	function msgHtml( $msgKey ) {
+		echo wfMessage( $msgKey )->text();
+	}
+
+	/**
+	 * An ugly, ugly hack.
+	 * @private
+	 * @param string $msgKey
+	 */
+	function msgWiki( $msgKey ) {
+		global $wgOut;
+
+		$text = wfMessage( $msgKey )->text();
+		echo $wgOut->parse( $text );
+	}
+
+	/**
+	 * @private
+	 * @param string $str
+	 * @return bool
+	 */
+	function haveData( $str ) {
+		return isset( $this->data[$str] );
+	}
+
+	/**
+	 * @private
+	 *
+	 * @param string $msgKey
+	 * @return bool
+	 */
+	function haveMsg( $msgKey ) {
+		$msg = wfMessage( $msgKey );
+		return $msg->exists() && !$msg->isDisabled();
+	}
+
+	/**
+	 * Get the Skin object related to this object
+	 *
+	 * @return Skin
+	 */
+	public function getSkin() {
+		return $this->data['skin'];
+	}
+
+	/**
+	 * Fetch the output of a QuickTemplate and return it
+	 *
+	 * @since 1.23
+	 * @return string
+	 */
+	public function getHTML() {
+		ob_start();
+		$this->execute();
+		$html = ob_get_contents();
+		ob_end_clean();
+		return $html;
+	}
+}
diff --git a/www/wiki/includes/skins/Skin.php b/www/wiki/includes/skins/Skin.php
new file mode 100644
index 00000000..e2de9ec3
--- /dev/null
+++ b/www/wiki/includes/skins/Skin.php
@@ -0,0 +1,1640 @@
+<?php
+/**
+ * Base class for all skins.
+ *
+ * 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\MediaWikiServices;
+
+/**
+ * @defgroup Skins Skins
+ */
+
+/**
+ * The main skin class which provides methods and properties for all other skins.
+ *
+ * See docs/skin.txt for more information.
+ *
+ * @ingroup Skins
+ */
+abstract class Skin extends ContextSource {
+	/**
+	 * @var string|null
+	 */
+	protected $skinname = null;
+
+	protected $mRelevantTitle = null;
+	protected $mRelevantUser = null;
+
+	/**
+	 * @var string Stylesheets set to use. Subdirectory in skins/ where various stylesheets are
+	 *   located. Only needs to be set if you intend to use the getSkinStylePath() method.
+	 */
+	public $stylename = null;
+
+	/**
+	 * Fetch the set of available skins.
+	 * @return array Associative array of strings
+	 */
+	static function getSkinNames() {
+		return SkinFactory::getDefaultInstance()->getSkinNames();
+	}
+
+	/**
+	 * Fetch the skinname messages for available skins.
+	 * @return string[]
+	 */
+	static function getSkinNameMessages() {
+		$messages = [];
+		foreach ( self::getSkinNames() as $skinKey => $skinName ) {
+			$messages[] = "skinname-$skinKey";
+		}
+		return $messages;
+	}
+
+	/**
+	 * Fetch the list of user-selectable skins in regards to $wgSkipSkins.
+	 * Useful for Special:Preferences and other places where you
+	 * only want to show skins users _can_ use.
+	 * @return string[]
+	 * @since 1.23
+	 */
+	public static function getAllowedSkins() {
+		global $wgSkipSkins;
+
+		$allowedSkins = self::getSkinNames();
+
+		foreach ( $wgSkipSkins as $skip ) {
+			unset( $allowedSkins[$skip] );
+		}
+
+		return $allowedSkins;
+	}
+
+	/**
+	 * Normalize a skin preference value to a form that can be loaded.
+	 *
+	 * If a skin can't be found, it will fall back to the configured default ($wgDefaultSkin), or the
+	 * hardcoded default ($wgFallbackSkin) if the default skin is unavailable too.
+	 *
+	 * @param string $key 'monobook', 'vector', etc.
+	 * @return string
+	 */
+	static function normalizeKey( $key ) {
+		global $wgDefaultSkin, $wgFallbackSkin;
+
+		$skinNames = self::getSkinNames();
+
+		// Make keys lowercase for case-insensitive matching.
+		$skinNames = array_change_key_case( $skinNames, CASE_LOWER );
+		$key = strtolower( $key );
+		$defaultSkin = strtolower( $wgDefaultSkin );
+		$fallbackSkin = strtolower( $wgFallbackSkin );
+
+		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] ) ) {
+			$key = $fallback[$key];
+		}
+
+		if ( isset( $skinNames[$key] ) ) {
+			return $key;
+		} elseif ( isset( $skinNames[$defaultSkin] ) ) {
+			return $defaultSkin;
+		} else {
+			return $fallbackSkin;
+		}
+	}
+
+	/**
+	 * @since 1.31
+	 * @param string|null $skinname
+	 */
+	public function __construct( $skinname = null ) {
+		if ( is_string( $skinname ) ) {
+			$this->skinname = $skinname;
+		}
+	}
+
+	/**
+	 * @return string|null Skin name
+	 */
+	public function getSkinName() {
+		return $this->skinname;
+	}
+
+	/**
+	 * @param OutputPage $out
+	 */
+	public function initPage( OutputPage $out ) {
+		$this->preloadExistence();
+	}
+
+	/**
+	 * 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
+	 *
+	 * For style modules, use setupSkinUserCss() instead.
+	 *
+	 * @return array Array of modules with helper keys for easy overriding
+	 */
+	public function getDefaultModules() {
+		global $wgUseAjax, $wgEnableAPI, $wgEnableWriteAPI;
+
+		$out = $this->getOutput();
+		$config = $this->getConfig();
+		$user = $out->getUser();
+		$modules = [
+			// modules not specific to any specific skin or page
+			'core' => [
+				// Enforce various default modules for all pages and all skins
+				// Keep this list as small as possible
+				'site',
+				'mediawiki.page.startup',
+				'mediawiki.user',
+			],
+			// modules that enhance the page content in some way
+			'content' => [
+				'mediawiki.page.ready',
+			],
+			// modules relating to search functionality
+			'search' => [],
+			// modules relating to functionality relating to watching an article
+			'watch' => [],
+			// modules which relate to the current users preferences
+			'user' => [],
+		];
+
+		// Support for high-density display images if enabled
+		if ( $config->get( 'ResponsiveImages' ) ) {
+			$modules['core'][] = 'mediawiki.hidpi';
+		}
+
+		// Preload jquery.tablesorter for mediawiki.page.ready
+		if ( strpos( $out->getHTML(), 'sortable' ) !== false ) {
+			$modules['content'][] = 'jquery.tablesorter';
+		}
+
+		// Preload jquery.makeCollapsible for mediawiki.page.ready
+		if ( strpos( $out->getHTML(), 'mw-collapsible' ) !== false ) {
+			$modules['content'][] = 'jquery.makeCollapsible';
+		}
+
+		if ( $out->isTOCEnabled() ) {
+			$modules['content'][] = 'mediawiki.toc';
+		}
+
+		// Add various resources if required
+		if ( $wgUseAjax && $wgEnableAPI ) {
+			if ( $wgEnableWriteAPI && $user->isLoggedIn()
+				&& $user->isAllowedAll( 'writeapi', 'viewmywatchlist', 'editmywatchlist' )
+				&& $this->getRelevantTitle()->canExist()
+			) {
+				$modules['watch'][] = 'mediawiki.page.watch.ajax';
+			}
+
+			$modules['search'][] = 'mediawiki.searchSuggest';
+		}
+
+		if ( $user->getBoolOption( 'editsectiononrightclick' ) ) {
+			$modules['user'][] = 'mediawiki.action.view.rightClickEdit';
+		}
+
+		// Crazy edit-on-double-click stuff
+		if ( $out->isArticle() && $user->getOption( 'editondblclick' ) ) {
+			$modules['user'][] = 'mediawiki.action.view.dblClickEdit';
+		}
+		return $modules;
+	}
+
+	/**
+	 * Preload the existence of three commonly-requested pages in a single query
+	 */
+	protected function preloadExistence() {
+		$titles = [];
+
+		// User/talk link
+		$user = $this->getUser();
+		if ( $user->isLoggedIn() ) {
+			$titles[] = $user->getUserPage();
+			$titles[] = $user->getTalkPage();
+		}
+
+		// Check, if the page can hold some kind of content, otherwise do nothing
+		$title = $this->getRelevantTitle();
+		if ( $title->canExist() ) {
+			if ( $title->isTalkPage() ) {
+				$titles[] = $title->getSubjectPage();
+			} else {
+				$titles[] = $title->getTalkPage();
+			}
+		}
+
+		// Footer links (used by SkinTemplate::prepareQuickTemplate)
+		foreach ( [
+			$this->footerLinkTitle( 'privacy', 'privacypage' ),
+			$this->footerLinkTitle( 'aboutsite', 'aboutpage' ),
+			$this->footerLinkTitle( 'disclaimers', 'disclaimerpage' ),
+		] as $title ) {
+			if ( $title ) {
+				$titles[] = $title;
+			}
+		}
+
+		Hooks::run( 'SkinPreloadExistence', [ &$titles, $this ] );
+
+		if ( $titles ) {
+			$lb = new LinkBatch( $titles );
+			$lb->setCaller( __METHOD__ );
+			$lb->execute();
+		}
+	}
+
+	/**
+	 * Get the current revision ID
+	 *
+	 * @return int
+	 */
+	public function getRevisionId() {
+		return $this->getOutput()->getRevisionId();
+	}
+
+	/**
+	 * Whether the revision displayed is the latest revision of the page
+	 *
+	 * @return bool
+	 */
+	public function isRevisionCurrent() {
+		$revID = $this->getRevisionId();
+		return $revID == 0 || $revID == $this->getTitle()->getLatestRevID();
+	}
+
+	/**
+	 * Set the "relevant" title
+	 * @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 to that page instead of displaying
+	 * a basic special page tab which has almost no meaning.
+	 *
+	 * @return Title
+	 */
+	public function getRelevantTitle() {
+		if ( isset( $this->mRelevantTitle ) ) {
+			return $this->mRelevantTitle;
+		}
+		return $this->getTitle();
+	}
+
+	/**
+	 * Set the "relevant" user
+	 * @see self::getRelevantUser()
+	 * @param User $u
+	 */
+	public function setRelevantUser( $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 User
+	 */
+	public function getRelevantUser() {
+		if ( isset( $this->mRelevantUser ) ) {
+			return $this->mRelevantUser;
+		}
+		$title = $this->getRelevantTitle();
+		if ( $title->hasSubjectNamespace( NS_USER ) ) {
+			$rootUser = $title->getRootText();
+			if ( User::isIP( $rootUser ) ) {
+				$this->mRelevantUser = User::newFromName( $rootUser, false );
+			} else {
+				$user = User::newFromName( $rootUser, false );
+
+				if ( $user ) {
+					$user->load( User::READ_NORMAL );
+
+					if ( $user->isLoggedIn() ) {
+						$this->mRelevantUser = $user;
+					}
+				}
+			}
+			return $this->mRelevantUser;
+		}
+		return null;
+	}
+
+	/**
+	 * Outputs the HTML generated by other functions.
+	 * @param OutputPage $out
+	 */
+	abstract function outputPage( OutputPage $out = null );
+
+	/**
+	 * @param array $data
+	 * @return string
+	 */
+	static function makeVariablesScript( $data ) {
+		if ( $data ) {
+			return ResourceLoader::makeInlineScript(
+				ResourceLoader::makeConfigSetScript( $data )
+			);
+		} else {
+			return '';
+		}
+	}
+
+	/**
+	 * Get the query to generate a dynamic stylesheet
+	 *
+	 * @return array
+	 */
+	public static function getDynamicStylesheetQuery() {
+		global $wgSquidMaxage;
+
+		return [
+				'action' => 'raw',
+				'maxage' => $wgSquidMaxage,
+				'usemsgcache' => 'yes',
+				'ctype' => 'text/css',
+				'smaxage' => $wgSquidMaxage,
+			];
+	}
+
+	/**
+	 * Add skin specific stylesheets
+	 * Calling this method with an $out of anything but the same OutputPage
+	 * inside ->getOutput() is deprecated. The $out arg is kept
+	 * for compatibility purposes with skins.
+	 * @param OutputPage $out
+	 * @todo delete
+	 */
+	abstract function setupSkinUserCss( OutputPage $out );
+
+	/**
+	 * TODO: document
+	 * @param Title $title
+	 * @return string
+	 */
+	function getPageClasses( $title ) {
+		$numeric = 'ns-' . $title->getNamespace();
+
+		if ( $title->isSpecialPage() ) {
+			$type = 'ns-special';
+			// T25315: provide a class based on the canonical special page name without subpages
+			list( $canonicalName ) = SpecialPageFactory::resolveAlias( $title->getDBkey() );
+			if ( $canonicalName ) {
+				$type .= ' ' . Sanitizer::escapeClass( "mw-special-$canonicalName" );
+			} else {
+				$type .= ' mw-invalidspecialpage';
+			}
+		} elseif ( $title->isTalkPage() ) {
+			$type = 'ns-talk';
+		} else {
+			$type = 'ns-subject';
+		}
+
+		$name = Sanitizer::escapeClass( 'page-' . $title->getPrefixedText() );
+		$root = Sanitizer::escapeClass( 'rootpage-' . $title->getRootTitle()->getPrefixedText() );
+
+		return "$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',
+		];
+	}
+
+	/**
+	 * This will be called by OutputPage::headElement when it is creating the
+	 * "<body>" tag, skins can override it if they have a need to add in any
+	 * body attributes or classes of their own.
+	 * @param OutputPage $out
+	 * @param array &$bodyAttrs
+	 */
+	function addToBodyAttributes( $out, &$bodyAttrs ) {
+		// does nothing by default
+	}
+
+	/**
+	 * URL to the logo
+	 * @return string
+	 */
+	function getLogo() {
+		global $wgLogo;
+		return $wgLogo;
+	}
+
+	/**
+	 * Whether the logo should be preloaded with an HTTP link header or not
+	 * @since 1.29
+	 * @return bool
+	 */
+	public function shouldPreloadLogo() {
+		return false;
+	}
+
+	/**
+	 * @return string HTML
+	 */
+	function getCategoryLinks() {
+		global $wgUseCategoryBrowser;
+
+		$out = $this->getOutput();
+		$allCats = $out->getCategoryLinks();
+
+		if ( !count( $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'] ) )->escaped();
+			$linkPage = wfMessage( 'pagecategorieslink' )->inContentLanguage()->text();
+			$title = Title::newFromText( $linkPage );
+			$link = $title ? Linker::link( $title, $msg ) : $msg;
+			$s .= '<div id="mw-normal-catlinks" class="mw-normal-catlinks">' .
+				$link . $colon . '<ul>' . $t . '</ul>' . '</div>';
+		}
+
+		# Hidden categories
+		if ( isset( $allCats['hidden'] ) ) {
+			if ( $this->getUser()->getBoolOption( 'showhiddencats' ) ) {
+				$class = ' mw-hidden-cats-user-shown';
+			} elseif ( $this->getTitle()->getNamespace() == NS_CATEGORY ) {
+				$class = ' mw-hidden-cats-ns-shown';
+			} else {
+				$class = ' mw-hidden-cats-hidden';
+			}
+
+			$s .= "<div id=\"mw-hidden-catlinks\" class=\"mw-hidden-catlinks$class\">" .
+				$this->msg( 'hidden-categories' )->numParams( count( $allCats['hidden'] ) )->escaped() .
+				$colon . '<ul>' . $embed . implode( "{$pop}{$embed}", $allCats['hidden'] ) . $pop . '</ul>' .
+				'</div>';
+		}
+
+		# optional 'dmoz-like' category browser. Will be shown under the list
+		# of categories an article belong to
+		if ( $wgUseCategoryBrowser ) {
+			$s .= '<br /><hr />';
+
+			# get a big array of the parents tree
+			$parenttree = $this->getTitle()->getParentCategoryTree();
+			# Skin object passed by reference cause it can not be
+			# accessed under the method subfunction drawCategoryBrowser
+			$tempout = explode( "\n", $this->drawCategoryBrowser( $parenttree ) );
+			# Clean out bogus first entry and sort them
+			unset( $tempout[0] );
+			asort( $tempout );
+			# Output one per line
+			$s .= implode( "<br />\n", $tempout );
+		}
+
+		return $s;
+	}
+
+	/**
+	 * Render the array as a series of links.
+	 * @param array $tree Categories tree returned by Title::getParentCategoryTree
+	 * @return string Separated by &gt;, terminate with "\n"
+	 */
+	function drawCategoryBrowser( $tree ) {
+		$return = '';
+
+		foreach ( $tree as $element => $parent ) {
+			if ( empty( $parent ) ) {
+				# element start a new list
+				$return .= "\n";
+			} else {
+				# grab the others elements
+				$return .= $this->drawCategoryBrowser( $parent ) . ' &gt; ';
+			}
+
+			# add our current element to the list
+			$eltitle = Title::newFromText( $element );
+			$return .= Linker::link( $eltitle, htmlspecialchars( $eltitle->getText() ) );
+		}
+
+		return $return;
+	}
+
+	/**
+	 * @return string HTML
+	 */
+	function getCategories() {
+		$out = $this->getOutput();
+		$catlinks = $this->getCategoryLinks();
+
+		// Check what we're showing
+		$allCats = $out->getCategoryLinks();
+		$showHidden = $this->getUser()->getBoolOption( 'showhiddencats' ) ||
+						$this->getTitle()->getNamespace() == 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() {
+		$data = '';
+
+		if ( Hooks::run( 'SkinAfterContent', [ &$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.\n" );
+		}
+
+		return $data;
+	}
+
+	/**
+	 * Generate debug data HTML for displaying at the bottom of the main content
+	 * area.
+	 * @return string HTML containing debug data, if enabled (otherwise empty).
+	 */
+	protected function generateDebugHTML() {
+		return MWDebug::getHTMLDebugLog();
+	}
+
+	/**
+	 * This gets called shortly before the "</body>" tag.
+	 *
+	 * @return string HTML-wrapped JS code to be put before "</body>"
+	 */
+	function bottomScripts() {
+		// TODO and the suckage continues. This function is really just a wrapper around
+		// OutputPage::getBottomScripts() which takes a Skin param. This should be cleaned
+		// up at some point
+		$bottomScriptText = $this->getOutput()->getBottomScripts();
+		Hooks::run( 'SkinAfterBottomScripts', [ $this, &$bottomScriptText ] );
+
+		return $bottomScriptText;
+	}
+
+	/**
+	 * Text with the permalink to the source page,
+	 * usually shown on the footer of a printed page
+	 *
+	 * @return string HTML text with an URL
+	 */
+	function printSource() {
+		$oldid = $this->getRevisionId();
+		if ( $oldid ) {
+			$canonicalUrl = $this->getTitle()->getCanonicalURL( 'oldid=' . $oldid );
+			$url = htmlspecialchars( wfExpandIRI( $canonicalUrl ) );
+		} else {
+			// oldid not available for non existing pages
+			$url = htmlspecialchars( wfExpandIRI( $this->getTitle()->getCanonicalURL() ) );
+		}
+
+		return $this->msg( 'retrievedfrom' )
+			->rawParams( '<a dir="ltr" href="' . $url . '">' . $url . '</a>' )
+			->parse();
+	}
+
+	/**
+	 * @return string HTML
+	 */
+	function getUndeleteLink() {
+		$action = $this->getRequest()->getVal( 'action', 'view' );
+
+		if ( $this->getTitle()->userCan( 'deletedhistory', $this->getUser() ) &&
+			( !$this->getTitle()->exists() || $action == 'history' ) ) {
+			$n = $this->getTitle()->isDeleted();
+
+			if ( $n ) {
+				if ( $this->getTitle()->quickUserCan( 'undelete', $this->getUser() ) ) {
+					$msg = 'thisisdeleted';
+				} else {
+					$msg = 'viewdeleted';
+				}
+
+				return $this->msg( $msg )->rawParams(
+					Linker::linkKnown(
+						SpecialPage::getTitleFor( 'Undelete', $this->getTitle()->getPrefixedDBkey() ),
+						$this->msg( 'restorelink' )->numParams( $n )->escaped() )
+					)->escaped();
+			}
+		}
+
+		return '';
+	}
+
+	/**
+	 * @param OutputPage $out Defaults to $this->getOutput() if left as null
+	 * @return string
+	 */
+	function subPageSubtitle( $out = null ) {
+		if ( $out === null ) {
+			$out = $this->getOutput();
+		}
+		$title = $out->getTitle();
+		$subpages = '';
+
+		if ( !Hooks::run( 'SkinSubPageSubtitle', [ &$subpages, $this, $out ] ) ) {
+			return $subpages;
+		}
+
+		if ( $out->isArticle() && MWNamespace::hasSubpages( $title->getNamespace() ) ) {
+			$ptext = $title->getPrefixedText();
+			if ( strpos( $ptext, '/' ) !== false ) {
+				$links = explode( '/', $ptext );
+				array_pop( $links );
+				$c = 0;
+				$growinglink = '';
+				$display = '';
+				$lang = $this->getLanguage();
+
+				foreach ( $links as $link ) {
+					$growinglink .= $link;
+					$display .= $link;
+					$linkObj = Title::newFromText( $growinglink );
+
+					if ( is_object( $linkObj ) && $linkObj->isKnown() ) {
+						$getlink = Linker::linkKnown(
+							$linkObj,
+							htmlspecialchars( $display )
+						);
+
+						$c++;
+
+						if ( $c > 1 ) {
+							$subpages .= $lang->getDirMarkEntity() . $this->msg( 'pipe-separator' )->escaped();
+						} else {
+							$subpages .= '&lt; ';
+						}
+
+						$subpages .= $getlink;
+						$display = '';
+					} else {
+						$display .= '/';
+					}
+					$growinglink .= '/';
+				}
+			}
+		}
+
+		return $subpages;
+	}
+
+	/**
+	 * @return string
+	 */
+	function getSearchLink() {
+		$searchPage = SpecialPage::getTitleFor( 'Search' );
+		return $searchPage->getLocalURL();
+	}
+
+	/**
+	 * @return string
+	 */
+	function escapeSearchLink() {
+		return htmlspecialchars( $this->getSearchLink() );
+	}
+
+	/**
+	 * @param string $type
+	 * @return string
+	 */
+	function getCopyright( $type = 'detect' ) {
+		global $wgRightsPage, $wgRightsUrl, $wgRightsText;
+
+		if ( $type == 'detect' ) {
+			if ( !$this->isRevisionCurrent()
+				&& !$this->msg( 'history_copyright' )->inContentLanguage()->isDisabled()
+			) {
+				$type = 'history';
+			} else {
+				$type = 'normal';
+			}
+		}
+
+		if ( $type == 'history' ) {
+			$msg = 'history_copyright';
+		} else {
+			$msg = 'copyright';
+		}
+
+		if ( $wgRightsPage ) {
+			$title = Title::newFromText( $wgRightsPage );
+			$link = Linker::linkKnown( $title, $wgRightsText );
+		} elseif ( $wgRightsUrl ) {
+			$link = Linker::makeExternalLink( $wgRightsUrl, $wgRightsText );
+		} elseif ( $wgRightsText ) {
+			$link = $wgRightsText;
+		} else {
+			# Give up now
+			return '';
+		}
+
+		// Allow for site and per-namespace customization of copyright notice.
+		// @todo Remove deprecated $forContent param from hook handlers and then remove here.
+		$forContent = true;
+
+		Hooks::run(
+			'SkinCopyrightFooter',
+			[ $this->getTitle(), $type, &$msg, &$link, &$forContent ]
+		);
+
+		return $this->msg( $msg )->rawParams( $link )->text();
+	}
+
+	/**
+	 * @return null|string
+	 */
+	function getCopyrightIcon() {
+		global $wgRightsUrl, $wgRightsText, $wgRightsIcon, $wgFooterIcons;
+
+		$out = '';
+
+		if ( $wgFooterIcons['copyright']['copyright'] ) {
+			$out = $wgFooterIcons['copyright']['copyright'];
+		} elseif ( $wgRightsIcon ) {
+			$icon = htmlspecialchars( $wgRightsIcon );
+
+			if ( $wgRightsUrl ) {
+				$url = htmlspecialchars( $wgRightsUrl );
+				$out .= '<a href="' . $url . '">';
+			}
+
+			$text = htmlspecialchars( $wgRightsText );
+			$out .= "<img src=\"$icon\" alt=\"$text\" width=\"88\" height=\"31\" />";
+
+			if ( $wgRightsUrl ) {
+				$out .= '</a>';
+			}
+		}
+
+		return $out;
+	}
+
+	/**
+	 * Gets the powered by MediaWiki icon.
+	 * @return string
+	 */
+	function getPoweredBy() {
+		global $wgResourceBasePath;
+
+		$url1 = htmlspecialchars(
+			"$wgResourceBasePath/resources/assets/poweredby_mediawiki_88x31.png"
+		);
+		$url1_5 = htmlspecialchars(
+			"$wgResourceBasePath/resources/assets/poweredby_mediawiki_132x47.png"
+		);
+		$url2 = htmlspecialchars(
+			"$wgResourceBasePath/resources/assets/poweredby_mediawiki_176x62.png"
+		);
+		$text = '<a href="//www.mediawiki.org/"><img src="' . $url1
+			. '" srcset="' . $url1_5 . ' 1.5x, ' . $url2 . ' 2x" '
+			. 'height="31" width="88" alt="Powered by MediaWiki" /></a>';
+		Hooks::run( 'SkinGetPoweredBy', [ &$text, $this ] );
+		return $text;
+	}
+
+	/**
+	 * Get the timestamp of the latest revision, formatted in user language
+	 *
+	 * @return string
+	 */
+	protected function lastModified() {
+		$timestamp = $this->getOutput()->getRevisionTimestamp();
+
+		# No cached timestamp, load it from the database
+		if ( $timestamp === null ) {
+			$timestamp = Revision::getTimestampFromId( $this->getTitle(), $this->getRevisionId() );
+		}
+
+		if ( $timestamp ) {
+			$d = $this->getLanguage()->userDate( $timestamp, $this->getUser() );
+			$t = $this->getLanguage()->userTime( $timestamp, $this->getUser() );
+			$s = ' ' . $this->msg( 'lastmodifiedat', $d, $t )->parse();
+		} else {
+			$s = '';
+		}
+
+		if ( MediaWikiServices::getInstance()->getDBLoadBalancer()->getLaggedReplicaMode() ) {
+			$s .= ' <strong>' . $this->msg( 'laggedslavemode' )->parse() . '</strong>';
+		}
+
+		return $s;
+	}
+
+	/**
+	 * @param string $align
+	 * @return string
+	 */
+	function logoText( $align = '' ) {
+		if ( $align != '' ) {
+			$a = " style='float: {$align};'";
+		} else {
+			$a = '';
+		}
+
+		$mp = $this->msg( 'mainpage' )->escaped();
+		$mptitle = Title::newMainPage();
+		$url = ( is_object( $mptitle ) ? htmlspecialchars( $mptitle->getLocalURL() ) : '' );
+
+		$logourl = $this->getLogo();
+		$s = "<a href='{$url}'><img{$a} src='{$logourl}' alt='[{$mp}]' /></a>";
+
+		return $s;
+	}
+
+	/**
+	 * Renders a $wgFooterIcons icon according to the method's arguments
+	 * @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
+	 */
+	function makeFooterIcon( $icon, $withImage = 'withImage' ) {
+		if ( is_string( $icon ) ) {
+			$html = $icon;
+		} else { // Assuming array
+			$url = isset( $icon["url"] ) ? $icon["url"] : null;
+			unset( $icon["url"] );
+			if ( isset( $icon["src"] ) && $withImage === 'withImage' ) {
+				// do this the lazy way, just pass icon data as an attribute array
+				$html = Html::element( 'img', $icon );
+			} else {
+				$html = htmlspecialchars( $icon["alt"] );
+			}
+			if ( $url ) {
+				global $wgExternalLinkTarget;
+				$html = Html::rawElement( 'a',
+					[ "href" => $url, "target" => $wgExternalLinkTarget ],
+					$html );
+			}
+		}
+		return $html;
+	}
+
+	/**
+	 * Gets the link to the wiki's main page.
+	 * @return string
+	 */
+	function mainPageLink() {
+		$s = Linker::linkKnown(
+			Title::newMainPage(),
+			$this->msg( 'mainpage' )->escaped()
+		);
+
+		return $s;
+	}
+
+	/**
+	 * Returns an HTML link for use in the footer
+	 * @param string $desc The i18n message key for the link text
+	 * @param string $page The i18n message key for the page to link to
+	 * @return string HTML anchor
+	 */
+	public function footerLink( $desc, $page ) {
+		$title = $this->footerLinkTitle( $desc, $page );
+		if ( !$title ) {
+			return '';
+		}
+
+		return Linker::linkKnown(
+			$title,
+			$this->msg( $desc )->escaped()
+		);
+	}
+
+	/**
+	 * @param string $desc
+	 * @param string $page
+	 * @return Title|null
+	 */
+	private function footerLinkTitle( $desc, $page ) {
+		// If the link description has been set to "-" in the default language,
+		if ( $this->msg( $desc )->inContentLanguage()->isDisabled() ) {
+			// then it is disabled, for all languages.
+			return null;
+		}
+		// Otherwise, we display the link for the user, described in their
+		// language (which may or may not be the same as the default language),
+		// but we make the link target be the one site-wide page.
+		$title = Title::newFromText( $this->msg( $page )->inContentLanguage()->text() );
+
+		return $title ?: null;
+	}
+
+	/**
+	 * Gets the link to the wiki's privacy policy page.
+	 * @return string HTML
+	 */
+	function privacyLink() {
+		return $this->footerLink( 'privacy', 'privacypage' );
+	}
+
+	/**
+	 * Gets the link to the wiki's about page.
+	 * @return string HTML
+	 */
+	function aboutLink() {
+		return $this->footerLink( 'aboutsite', 'aboutpage' );
+	}
+
+	/**
+	 * Gets the link to the wiki's general disclaimers page.
+	 * @return string HTML
+	 */
+	function disclaimerLink() {
+		return $this->footerLink( 'disclaimers', 'disclaimerpage' );
+	}
+
+	/**
+	 * Return URL options for the 'edit page' link.
+	 * This may include an 'oldid' specifier, if the current page view is such.
+	 *
+	 * @return array
+	 * @private
+	 */
+	function editUrlOptions() {
+		$options = [ 'action' => 'edit' ];
+
+		if ( !$this->isRevisionCurrent() ) {
+			$options['oldid'] = intval( $this->getRevisionId() );
+		}
+
+		return $options;
+	}
+
+	/**
+	 * @param User|int $id
+	 * @return bool
+	 */
+	function showEmailUser( $id ) {
+		if ( $id instanceof User ) {
+			$targetUser = $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.
+		return $this->getUser()->canSendEmail()
+			&& SpecialEmailUser::validateTarget( $targetUser, $this->getUser() ) === '';
+	}
+
+	/**
+	 * Return a fully resolved style path url to images or styles stored in the current skins's folder.
+	 * This method returns a url resolved using the configured skin style path
+	 * and includes the style version inside of the url.
+	 *
+	 * Requires $stylename to be set, otherwise throws MWException.
+	 *
+	 * @param string $name The name or path of a skin resource file
+	 * @return string The fully resolved style path url including styleversion
+	 * @throws MWException
+	 */
+	function getSkinStylePath( $name ) {
+		global $wgStylePath, $wgStyleVersion;
+
+		if ( $this->stylename === null ) {
+			$class = static::class;
+			throw new MWException( "$class::\$stylename must be set to use getSkinStylePath()" );
+		}
+
+		return "$wgStylePath/{$this->stylename}/$name?$wgStyleVersion";
+	}
+
+	/* these are used extensively in SkinTemplate, but also some other places */
+
+	/**
+	 * @param string|string[] $urlaction
+	 * @return string
+	 */
+	static function makeMainPageUrl( $urlaction = '' ) {
+		$title = Title::newMainPage();
+		self::checkTitle( $title, '' );
+
+		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.
+	 *
+	 * @param string $name Name of the Special page
+	 * @param string|string[] $urlaction Query to append
+	 * @param string|null $proto Protocol to use or null for a local URL
+	 * @return string
+	 */
+	static function makeSpecialUrl( $name, $urlaction = '', $proto = null ) {
+		$title = SpecialPage::getSafeTitleFor( $name );
+		if ( is_null( $proto ) ) {
+			return $title->getLocalURL( $urlaction );
+		} else {
+			return $title->getFullURL( $urlaction, false, $proto );
+		}
+	}
+
+	/**
+	 * @param string $name
+	 * @param string $subpage
+	 * @param string|string[] $urlaction
+	 * @return string
+	 */
+	static function makeSpecialUrlSubpage( $name, $subpage, $urlaction = '' ) {
+		$title = SpecialPage::getSafeTitleFor( $name, $subpage );
+		return $title->getLocalURL( $urlaction );
+	}
+
+	/**
+	 * @param string $name
+	 * @param string|string[] $urlaction
+	 * @return string
+	 */
+	static function makeI18nUrl( $name, $urlaction = '' ) {
+		$title = Title::newFromText( wfMessage( $name )->inContentLanguage()->text() );
+		self::checkTitle( $title, $name );
+		return $title->getLocalURL( $urlaction );
+	}
+
+	/**
+	 * @param string $name
+	 * @param string|string[] $urlaction
+	 * @return string
+	 */
+	static function makeUrl( $name, $urlaction = '' ) {
+		$title = Title::newFromText( $name );
+		self::checkTitle( $title, $name );
+
+		return $title->getLocalURL( $urlaction );
+	}
+
+	/**
+	 * If url string starts with http, consider as external URL, else
+	 * internal
+	 * @param string $name
+	 * @return string URL
+	 */
+	static function makeInternalOrExternalUrl( $name ) {
+		if ( preg_match( '/^(?i:' . wfUrlProtocols() . ')/', $name ) ) {
+			return $name;
+		} else {
+			return self::makeUrl( $name );
+		}
+	}
+
+	/**
+	 * this can be passed the NS number as defined in Language.php
+	 * @param string $name
+	 * @param string|string[] $urlaction
+	 * @param int $namespace
+	 * @return string
+	 */
+	static function makeNSUrl( $name, $urlaction = '', $namespace = NS_MAIN ) {
+		$title = Title::makeTitleSafe( $namespace, $name );
+		self::checkTitle( $title, $name );
+
+		return $title->getLocalURL( $urlaction );
+	}
+
+	/**
+	 * these return an array with the 'href' and boolean 'exists'
+	 * @param string $name
+	 * @param string|string[] $urlaction
+	 * @return array
+	 */
+	static function makeUrlDetails( $name, $urlaction = '' ) {
+		$title = Title::newFromText( $name );
+		self::checkTitle( $title, $name );
+
+		return [
+			'href' => $title->getLocalURL( $urlaction ),
+			'exists' => $title->isKnown(),
+		];
+	}
+
+	/**
+	 * Make URL details where the article exists (or at least it's convenient to think so)
+	 * @param string $name Article name
+	 * @param string|string[] $urlaction
+	 * @return array
+	 */
+	static function makeKnownUrlDetails( $name, $urlaction = '' ) {
+		$title = Title::newFromText( $name );
+		self::checkTitle( $title, $name );
+
+		return [
+			'href' => $title->getLocalURL( $urlaction ),
+			'exists' => true
+		];
+	}
+
+	/**
+	 * make sure we have some title to operate on
+	 *
+	 * @param Title &$title
+	 * @param string $name
+	 */
+	static function checkTitle( &$title, $name ) {
+		if ( !is_object( $title ) ) {
+			$title = Title::newFromText( $name );
+			if ( !is_object( $title ) ) {
+				$title = Title::newFromText( '--error: link target missing--' );
+			}
+		}
+	}
+
+	/**
+	 * 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' / ...)
+	 *   - 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. It is either:
+	 *   - HTML text (<ul><li>...</li>...</ul>)
+	 *   - array of link data in a format accepted by BaseTemplate::makeListItem()
+	 *   - (for a magic string as a key, any value)
+	 *
+	 * 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() {
+		global $wgEnableSidebarCache, $wgSidebarCacheExpiry;
+
+		$callback = function ( $old = null, &$ttl = null ) {
+			$bar = [];
+			$this->addToSidebar( $bar, 'sidebar' );
+			Hooks::run( 'SkinBuildSidebar', [ $this, &$bar ] );
+			if ( MessageCache::singleton()->isDisabled() ) {
+				$ttl = WANObjectCache::TTL_UNCACHEABLE; // bug T133069
+			}
+
+			return $bar;
+		};
+
+		$msgCache = MessageCache::singleton();
+		$wanCache = MediaWikiServices::getInstance()->getMainWANObjectCache();
+
+		$sidebar = $wgEnableSidebarCache
+			? $wanCache->getWithSetCallback(
+				$wanCache->makeKey( 'sidebar', $this->getLanguage()->getCode() ),
+				$wgSidebarCacheExpiry,
+				$callback,
+				[
+					'checkKeys' => [
+						// Unless there is both no exact $code override nor an i18n definition
+						// in the the software, the only MediaWiki page to check is for $code.
+						$msgCache->getCheckKey( $this->getLanguage()->getCode() )
+					],
+					'lockTSE' => 30
+				]
+			)
+			: $callback();
+
+		// Apply post-processing to the cached value
+		Hooks::run( 'SidebarBeforeOutput', [ $this, &$sidebar ] );
+
+		return $sidebar;
+	}
+
+	/**
+	 * Add content from a sidebar system message
+	 * Currently only used for MediaWiki:Sidebar (but may be used by Extensions)
+	 *
+	 * This is just a wrapper around addToSidebarPlain() for backwards compatibility
+	 *
+	 * @param array &$bar
+	 * @param string $message
+	 */
+	public function addToSidebar( &$bar, $message ) {
+		$this->addToSidebarPlain( $bar, wfMessage( $message )->inContentLanguage()->plain() );
+	}
+
+	/**
+	 * Add content from plain text
+	 * @since 1.17
+	 * @param array &$bar
+	 * @param string $text
+	 * @return array
+	 */
+	function addToSidebarPlain( &$bar, $text ) {
+		$lines = explode( "\n", $text );
+
+		$heading = '';
+		$messageTitle = $this->getConfig()->get( 'EnableSidebarCache' )
+			? Title::newMainPage() : $this->getTitle();
+
+		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 ) { // sanity check
+					$line = MessageCache::singleton()->transform( $line, false, null, $messageTitle );
+					$line = array_map( 'trim', explode( '|', $line, 2 ) );
+					if ( count( $line ) !== 2 ) {
+						// Second sanity check, could be hit by people doing
+						// funky stuff with parserfuncs... (T35321)
+						continue;
+					}
+
+					$extraAttribs = [];
+
+					$msgLink = $this->msg( $line[0] )->title( $messageTitle )->inContentLanguage();
+					if ( $msgLink->exists() ) {
+						$link = $msgLink->text();
+						if ( $link == '-' ) {
+							continue;
+						}
+					} else {
+						$link = $line[0];
+					}
+					$msgText = $this->msg( $line[1] )->title( $messageTitle );
+					if ( $msgText->exists() ) {
+						$text = $msgText->text();
+					} else {
+						$text = $line[1];
+					}
+
+					if ( preg_match( '/^(?i:' . wfUrlProtocols() . ')/', $link ) ) {
+						$href = $link;
+
+						// Parser::getExternalLinkAttribs won't work here because of the Namespace things
+						global $wgNoFollowLinks, $wgNoFollowDomainExceptions;
+						if ( $wgNoFollowLinks && !wfMatchesDomainList( $href, $wgNoFollowDomainExceptions ) ) {
+							$extraAttribs['rel'] = 'nofollow';
+						}
+
+						global $wgExternalLinkTarget;
+						if ( $wgExternalLinkTarget ) {
+							$extraAttribs['target'] = $wgExternalLinkTarget;
+						}
+					} else {
+						$title = Title::newFromText( $link );
+
+						if ( $title ) {
+							$title = $title->fixSpecialName();
+							$href = $title->getLinkURL();
+						} else {
+							$href = 'INVALID-TITLE';
+						}
+					}
+
+					$bar[$heading][] = array_merge( [
+						'text' => $text,
+						'href' => $href,
+						'id' => Sanitizer::escapeIdForAttribute( 'n-' . strtr( $line[1], ' ', '-' ) ),
+						'active' => false,
+					], $extraAttribs );
+				} else {
+					continue;
+				}
+			}
+		}
+
+		return $bar;
+	}
+
+	/**
+	 * 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
+	 */
+	function getNewtalks() {
+		$newMessagesAlert = '';
+		$user = $this->getUser();
+		$newtalks = $user->getNewMessageLinks();
+		$out = $this->getOutput();
+
+		// Allow extensions to disable or modify the new messages alert
+		if ( !Hooks::run( 'GetNewMessagesAlert', [ &$newMessagesAlert, $newtalks, $user, $out ] ) ) {
+			return '';
+		}
+		if ( $newMessagesAlert ) {
+			return $newMessagesAlert;
+		}
+
+		if ( count( $newtalks ) == 1 && $newtalks[0]['wiki'] === wfWikiID() ) {
+			$uTalkTitle = $user->getTalkPage();
+			$lastSeenRev = isset( $newtalks[0]['rev'] ) ? $newtalks[0]['rev'] : null;
+			$nofAuthors = 0;
+			if ( $lastSeenRev !== null ) {
+				$plural = true; // Default if we have a last seen revision: if unknown, use plural
+				$latestRev = Revision::newFromTitle( $uTalkTitle, false, Revision::READ_NORMAL );
+				if ( $latestRev !== null ) {
+					// Singular if only 1 unseen revision, plural if several unseen revisions.
+					$plural = $latestRev->getParentId() !== $lastSeenRev->getId();
+					$nofAuthors = $uTalkTitle->countAuthorsBetween(
+						$lastSeenRev, $latestRev, 10, '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 = Linker::linkKnown(
+				$uTalkTitle,
+				$this->msg( 'newmessageslinkplural' )->params( $plural )->escaped(),
+				[],
+				[ 'redirect' => 'no' ]
+			);
+
+			$newMessagesDiffLink = Linker::linkKnown(
+				$uTalkTitle,
+				$this->msg( 'newmessagesdifflinkplural' )->params( $plural )->escaped(),
+				[],
+				$lastSeenRev !== null
+					? [ 'oldid' => $lastSeenRev->getId(), 'diff' => 'cur' ]
+					: [ 'diff' => 'cur' ]
+			);
+
+			if ( $nofAuthors >= 1 && $nofAuthors <= 10 ) {
+				$newMessagesAlert = $this->msg(
+					'youhavenewmessagesfromusers',
+					$newMessagesLink,
+					$newMessagesDiffLink
+				)->numParams( $nofAuthors, $plural );
+			} else {
+				// $nofAuthors === 11 signifies "11 or more" ("more than 10")
+				$newMessagesAlert = $this->msg(
+					$nofAuthors > 10 ? 'youhavenewmessagesmanyusers' : 'youhavenewmessages',
+					$newMessagesLink,
+					$newMessagesDiffLink
+				)->numParams( $plural );
+			}
+			$newMessagesAlert = $newMessagesAlert->text();
+			# Disable CDN cache
+			$out->setCdnMaxage( 0 );
+		} elseif ( count( $newtalks ) ) {
+			$sep = $this->msg( 'newtalkseparator' )->escaped();
+			$msgs = [];
+
+			foreach ( $newtalks as $newtalk ) {
+				$msgs[] = Xml::element(
+					'a',
+					[ 'href' => $newtalk['link'] ], $newtalk['wiki']
+				);
+			}
+			$parts = implode( $sep, $msgs );
+			$newMessagesAlert = $this->msg( 'youhavenewmessagesmulti' )->rawParams( $parts )->escaped();
+			$out->setCdnMaxage( 0 );
+		}
+
+		return $newMessagesAlert;
+	}
+
+	/**
+	 * Get a cached notice
+	 *
+	 * @param string $name Message name, or 'default' for $wgSiteNotice
+	 * @return string|bool HTML fragment, or false to indicate that the caller
+	 *   should fall back to the next notice in its sequence
+	 */
+	private function getCachedNotice( $name ) {
+		global $wgRenderHashAppend, $wgContLang;
+
+		$needParse = false;
+
+		if ( $name === 'default' ) {
+			// special case
+			global $wgSiteNotice;
+			$notice = $wgSiteNotice;
+			if ( empty( $notice ) ) {
+				return false;
+			}
+		} else {
+			$msg = $this->msg( $name )->inContentLanguage();
+			if ( $msg->isBlank() ) {
+				return '';
+			} elseif ( $msg->isDisabled() ) {
+				return false;
+			}
+			$notice = $msg->plain();
+		}
+
+		$cache = MediaWikiServices::getInstance()->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, $wgRenderHashAppend, md5( $notice ) ),
+			// TTL in seconds
+			600,
+			function () use ( $notice ) {
+				return $this->getOutput()->parse( $notice );
+			}
+		);
+
+		return Html::rawElement(
+			'div',
+			[
+				'id' => 'localNotice',
+				'lang' => $wgContLang->getHtmlCode(),
+				'dir' => $wgContLang->getDir()
+			],
+			$parsed
+		);
+	}
+
+	/**
+	 * Get the site notice
+	 *
+	 * @return string HTML fragment
+	 */
+	function getSiteNotice() {
+		$siteNotice = '';
+
+		if ( Hooks::run( 'SiteNoticeBefore', [ &$siteNotice, $this ] ) ) {
+			if ( is_object( $this->getUser() ) && $this->getUser()->isLoggedIn() ) {
+				$siteNotice = $this->getCachedNotice( 'sitenotice' );
+			} else {
+				$anonNotice = $this->getCachedNotice( 'anonnotice' );
+				if ( $anonNotice === false ) {
+					$siteNotice = $this->getCachedNotice( 'sitenotice' );
+				} else {
+					$siteNotice = $anonNotice;
+				}
+			}
+			if ( $siteNotice === false ) {
+				$siteNotice = $this->getCachedNotice( 'default' );
+			}
+		}
+
+		Hooks::run( 'SiteNoticeAfter', [ &$siteNotice, $this ] );
+		return $siteNotice;
+	}
+
+	/**
+	 * Create a section edit link.  This supersedes editSectionLink() and
+	 * editSectionLinkForOther().
+	 *
+	 * @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 $tooltip The tooltip to use for the link: will be escaped
+	 *   and wrapped in the 'editsectionhint' message
+	 * @param string $lang Language code
+	 * @return string HTML to use for edit link
+	 */
+	public function doEditSectionLink( Title $nt, $section, $tooltip = null, $lang = false ) {
+		// HTML generated here should probably have userlangattributes
+		// added to it for LTR text on RTL pages
+
+		$lang = wfGetLangObj( $lang );
+
+		$attribs = [];
+		if ( !is_null( $tooltip ) ) {
+			$attribs['title'] = wfMessage( 'editsectionhint' )->rawParams( $tooltip )
+				->inLanguage( $lang )->text();
+		}
+
+		$links = [
+			'editsection' => [
+				'text' => wfMessage( 'editsection' )->inLanguage( $lang )->escaped(),
+				'targetTitle' => $nt,
+				'attribs' => $attribs,
+				'query' => [ 'action' => 'edit', 'section' => $section ],
+				'options' => [ 'noclasses', 'known' ]
+			]
+		];
+
+		Hooks::run( 'SkinEditSectionLinks', [ $this, $nt, $section, $tooltip, &$links, $lang ] );
+
+		$result = '<span class="mw-editsection"><span class="mw-editsection-bracket">[</span>';
+
+		$linksHtml = [];
+		foreach ( $links as $k => $linkDetails ) {
+			$linksHtml[] = Linker::link(
+				$linkDetails['targetTitle'],
+				$linkDetails['text'],
+				$linkDetails['attribs'],
+				$linkDetails['query'],
+				$linkDetails['options']
+			);
+		}
+
+		$result .= implode(
+			'<span class="mw-editsection-divider">'
+				. wfMessage( 'pipe-separator' )->inLanguage( $lang )->escaped()
+				. '</span>',
+			$linksHtml
+		);
+
+		$result .= '<span class="mw-editsection-bracket">]</span></span>';
+		// Deprecated, use SkinEditSectionLinks hook instead
+		Hooks::run(
+			'DoEditSectionLink',
+			[ $this, $nt, $section, $tooltip, &$result, $lang ],
+			'1.25'
+		);
+		return $result;
+	}
+
+}
diff --git a/www/wiki/includes/skins/SkinApi.php b/www/wiki/includes/skins/SkinApi.php
new file mode 100644
index 00000000..6966ff71
--- /dev/null
+++ b/www/wiki/includes/skins/SkinApi.php
@@ -0,0 +1,69 @@
+<?php
+/**
+ * Extremely basic "skin" for API output, which needs to output a page without
+ * the usual skin elements but still using CSS, JS, and such via OutputPage and
+ * ResourceLoader.
+ *
+ * Copyright © 2014 Wikimedia Foundation and contributors
+ *
+ * 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
+ */
+
+/**
+ * SkinTemplate class for API output
+ * @since 1.25
+ */
+class SkinApi extends SkinTemplate {
+	public $skinname = 'apioutput';
+	public $template = SkinApiTemplate::class;
+
+	public function setupSkinUserCss( OutputPage $out ) {
+		parent::setupSkinUserCss( $out );
+		$out->addModuleStyles( 'mediawiki.skinning.interface' );
+	}
+
+	// Skip work and hooks for stuff we don't use
+
+	function buildSidebar() {
+		return [];
+	}
+
+	function getNewtalks() {
+		return '';
+	}
+
+	function getSiteNotice() {
+		return '';
+	}
+
+	public function getLanguages() {
+		return [];
+	}
+
+	protected function buildPersonalUrls() {
+		return [];
+	}
+
+	protected function buildContentNavigationUrls() {
+		return [];
+	}
+
+	protected function buildNavUrls() {
+		return [];
+	}
+}
diff --git a/www/wiki/includes/skins/SkinApiTemplate.php b/www/wiki/includes/skins/SkinApiTemplate.php
new file mode 100644
index 00000000..222a7626
--- /dev/null
+++ b/www/wiki/includes/skins/SkinApiTemplate.php
@@ -0,0 +1,61 @@
+<?php
+/**
+ * Extremely basic "skin" for API output, which needs to output a page without
+ * the usual skin elements but still using CSS, JS, and such via OutputPage and
+ * ResourceLoader.
+ *
+ * Copyright © 2014 Wikimedia Foundation and contributors
+ *
+ * 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
+ */
+
+/**
+ * BaseTemplate class for the 'apioutput' skin
+ * @since 1.25
+ */
+class SkinApiTemplate extends BaseTemplate {
+
+	public function execute() {
+		$this->html( 'headelement' ) ?>
+
+		<div class="mw-body" role="main">
+			<h1 class="firstHeading"><?php $this->html( 'title' ) ?></h1>
+			<div class="mw-body-content">
+				<?php $this->html( 'bodytext' ) ?>
+			</div>
+		</div>
+
+		<?php $this->printTrail() ?>
+		</body></html>
+<?php
+	}
+
+	// Skip work and hooks for stuff we don't use
+
+	function getToolbox() {
+		return [];
+	}
+
+	function getPersonalTools() {
+		return [];
+	}
+
+	function getSidebar( $options = [] ) {
+		return [];
+	}
+}
diff --git a/www/wiki/includes/skins/SkinException.php b/www/wiki/includes/skins/SkinException.php
new file mode 100644
index 00000000..31ff1437
--- /dev/null
+++ b/www/wiki/includes/skins/SkinException.php
@@ -0,0 +1,29 @@
+<?php
+/**
+ * Copyright 2014
+ *
+ * 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
+ */
+
+/**
+ * Exceptions for skin-related failures
+ *
+ * @since 1.24
+ */
+class SkinException extends MWException {
+}
diff --git a/www/wiki/includes/skins/SkinFactory.php b/www/wiki/includes/skins/SkinFactory.php
new file mode 100644
index 00000000..cc993aaf
--- /dev/null
+++ b/www/wiki/includes/skins/SkinFactory.php
@@ -0,0 +1,103 @@
+<?php
+
+/**
+ * Copyright 2014
+ *
+ * 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\MediaWikiServices;
+
+/**
+ * Factory class to create Skin objects
+ *
+ * @since 1.24
+ */
+class SkinFactory {
+
+	/**
+	 * Map of name => callback
+	 * @var array
+	 */
+	private $factoryFunctions = [];
+	/**
+	 * Map of name => fallback human-readable name, used when the 'skinname-<skin>' message is not
+	 * available
+	 *
+	 * @var array
+	 */
+	private $displayNames = [];
+
+	/**
+	 * @deprecated in 1.27
+	 * @return SkinFactory
+	 */
+	public static function getDefaultInstance() {
+		return MediaWikiServices::getInstance()->getSkinFactory();
+	}
+
+	/**
+	 * Register a new Skin factory function.
+	 *
+	 * Will override if it's already registered.
+	 *
+	 * @param string $name Internal skin name. Should be all-lowercase (technically doesn't have
+	 *     to be, but doing so would change the case of i18n message keys).
+	 * @param string $displayName For backwards-compatibility with old skin loading system. This is
+	 *     the text used as skin's human-readable name when the 'skinname-<skin>' message is not
+	 *     available. It should be the same as the skin name provided in $wgExtensionCredits.
+	 * @param callable $callback Callback that takes the skin name as an argument
+	 * @throws InvalidArgumentException If an invalid callback is provided
+	 */
+	public function register( $name, $displayName, $callback ) {
+		if ( !is_callable( $callback ) ) {
+			throw new InvalidArgumentException( 'Invalid callback provided' );
+		}
+		$this->factoryFunctions[$name] = $callback;
+		$this->displayNames[$name] = $displayName;
+	}
+
+	/**
+	 * Returns an associative array of:
+	 *  skin name => human readable name
+	 *
+	 * @return array
+	 */
+	public function getSkinNames() {
+		return $this->displayNames;
+	}
+
+	/**
+	 * Create a given Skin using the registered callback for $name.
+	 * @param string $name Name of the skin you want
+	 * @throws SkinException If a factory function isn't registered for $name
+	 * @throws UnexpectedValueException If the factory function returns a non-Skin object
+	 * @return Skin
+	 */
+	public function makeSkin( $name ) {
+		if ( !isset( $this->factoryFunctions[$name] ) ) {
+			throw new SkinException( "No registered builder available for $name." );
+		}
+		$skin = call_user_func( $this->factoryFunctions[$name], $name );
+		if ( $skin instanceof Skin ) {
+			return $skin;
+		} else {
+			throw new UnexpectedValueException( "The builder for $name returned a non-Skin object." );
+		}
+	}
+}
diff --git a/www/wiki/includes/skins/SkinFallback.php b/www/wiki/includes/skins/SkinFallback.php
new file mode 100644
index 00000000..d5f764c6
--- /dev/null
+++ b/www/wiki/includes/skins/SkinFallback.php
@@ -0,0 +1,36 @@
+<?php
+/**
+ * Skin file for the fallback skin.
+ *
+ * The structure is copied from the example skin (mediawiki/skins/Example).
+ *
+ * @since 1.24
+ * @file
+ */
+
+/**
+ * SkinTemplate class for the fallback skin
+ */
+class SkinFallback extends SkinTemplate {
+
+	public $skinname = 'fallback';
+	public $template = SkinFallbackTemplate::class;
+
+	/**
+	 * Add CSS via ResourceLoader
+	 *
+	 * @param OutputPage $out
+	 */
+	public function setupSkinUserCss( OutputPage $out ) {
+		parent::setupSkinUserCss( $out );
+		$out->addModuleStyles( 'mediawiki.skinning.interface' );
+	}
+
+	/**
+	 * @param OutputPage $out
+	 */
+	public function initPage( OutputPage $out ) {
+		parent::initPage( $out );
+		$out->enableClientCache( false );
+	}
+}
diff --git a/www/wiki/includes/skins/SkinFallbackTemplate.php b/www/wiki/includes/skins/SkinFallbackTemplate.php
new file mode 100644
index 00000000..bd02fa32
--- /dev/null
+++ b/www/wiki/includes/skins/SkinFallbackTemplate.php
@@ -0,0 +1,122 @@
+<?php
+
+/**
+ * Skin template for the fallback skin.
+ *
+ * The structure is copied from the example skin (mediawiki/skins/Example).
+ *
+ * @since 1.24
+ * @file
+ */
+
+/**
+ * BaseTemplate class for the fallback skin
+ */
+class SkinFallbackTemplate extends BaseTemplate {
+	/**
+	 * @return array
+	 */
+	private function findInstalledSkins() {
+		$styleDirectory = $this->config->get( 'StyleDirectory' );
+		// Get all subdirectories which might contains skins
+		$possibleSkins = scandir( $styleDirectory );
+		$possibleSkins = array_filter( $possibleSkins, function ( $maybeDir ) use ( $styleDirectory ) {
+			return $maybeDir !== '.' && $maybeDir !== '..' && is_dir( "$styleDirectory/$maybeDir" );
+		} );
+
+		// Filter out skins that aren't installed
+		$possibleSkins = array_filter( $possibleSkins, function ( $skinDir ) use ( $styleDirectory ) {
+			return is_file( "$styleDirectory/$skinDir/skin.json" )
+				|| is_file( "$styleDirectory/$skinDir/$skinDir.php" );
+		} );
+
+		return $possibleSkins;
+	}
+
+	/**
+	 * Inform the user why they are seeing this skin.
+	 *
+	 * @return string
+	 */
+	private function buildHelpfulInformationMessage() {
+		$defaultSkin = $this->config->get( 'DefaultSkin' );
+		$installedSkins = $this->findInstalledSkins();
+		$enabledSkins = SkinFactory::getDefaultInstance()->getSkinNames();
+		$enabledSkins = array_change_key_case( $enabledSkins, CASE_LOWER );
+
+		if ( $installedSkins ) {
+			$skinsInstalledText = [];
+			$skinsInstalledSnippet = [];
+
+			foreach ( $installedSkins as $skin ) {
+				$normalizedKey = strtolower( $skin );
+				$isEnabled = array_key_exists( $normalizedKey, $enabledSkins );
+				if ( $isEnabled ) {
+					$skinsInstalledText[] = $this->getMsg( 'default-skin-not-found-row-enabled' )
+						->params( $normalizedKey, $skin )->plain();
+				} else {
+					$skinsInstalledText[] = $this->getMsg( 'default-skin-not-found-row-disabled' )
+						->params( $normalizedKey, $skin )->plain();
+					$skinsInstalledSnippet[] = $this->getSnippetForSkin( $skin );
+				}
+			}
+
+			return $this->getMsg( 'default-skin-not-found' )->params(
+				$defaultSkin,
+				implode( "\n", $skinsInstalledText ),
+				implode( "\n", $skinsInstalledSnippet ) )->numParams(
+					count( $skinsInstalledText ),
+					count( $skinsInstalledSnippet )
+			)->parseAsBlock();
+		} else {
+			return $this->getMsg( 'default-skin-not-found-no-skins' )->params(
+				$defaultSkin
+			)->parseAsBlock();
+		}
+	}
+
+	/**
+	 * Get the appropriate LocalSettings.php snippet to enable the given skin
+	 *
+	 * @param string $skin
+	 * @return string
+	 */
+	private function getSnippetForSkin( $skin ) {
+		global $IP;
+		if ( file_exists( "$IP/skins/$skin/skin.json" ) ) {
+			return "wfLoadSkin( '$skin' );";
+		} else {
+			return "require_once \"\$IP/skins/$skin/$skin.php\";";
+		}
+	}
+
+	/**
+	 * Outputs the entire contents of the page. No navigation (other than search box), just the big
+	 * warning message and page content.
+	 */
+	public function execute() {
+		$this->html( 'headelement' );
+		echo Html::warningBox( $this->buildHelpfulInformationMessage() );
+	?>
+		<form action="<?php $this->text( 'wgScript' ) ?>">
+			<input type="hidden" name="title" value="<?php $this->text( 'searchtitle' ) ?>" />
+			<h3><label for="searchInput"><?php $this->msg( 'search' ) ?></label></h3>
+			<?php echo $this->makeSearchInput( [ "id" => "searchInput" ] ) ?>
+			<?php echo $this->makeSearchButton( 'go' ) ?>
+		</form>
+
+		<div class="mw-body" role="main">
+			<h1 class="firstHeading"><?php $this->html( 'title' ) ?></h1>
+
+			<div class="mw-body-content">
+				<?php $this->html( 'bodytext' ) ?>
+				<?php $this->html( 'catlinks' ) ?>
+			</div>
+		</div>
+
+		<?php $this->printTrail() ?>
+		</body></html>
+
+	<?php
+	}
+}
diff --git a/www/wiki/includes/skins/SkinTemplate.php b/www/wiki/includes/skins/SkinTemplate.php
new file mode 100644
index 00000000..203326f1
--- /dev/null
+++ b/www/wiki/includes/skins/SkinTemplate.php
@@ -0,0 +1,1404 @@
+<?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\Auth\AuthManager;
+use MediaWiki\MediaWikiServices;
+
+/**
+ * Base class for template-based skins.
+ *
+ * Template-filler skin base class
+ * Formerly generic PHPTal (http://phptal.sourceforge.net/) skin
+ * Based on Brion's smarty skin
+ * @copyright Copyright © Gabriel Wicke -- http://www.aulinx.de/
+ *
+ * @todo Needs some serious refactoring into functions that correspond
+ * to the computations individual esi snippets need. Most importantly no body
+ * parsing for most of those of course.
+ *
+ * @ingroup Skins
+ */
+class SkinTemplate extends Skin {
+	/**
+	 * @var string Name of our skin, it probably needs to be all lower case.
+	 *   Child classes should override the default.
+	 */
+	public $skinname = 'monobook';
+
+	/**
+	 * @var string For QuickTemplate, the name of the subclass which will
+	 *   actually fill the template.  Child classes should override the default.
+	 */
+	public $template = QuickTemplate::class;
+
+	public $thispage;
+	public $titletxt;
+	public $userpage;
+	public $thisquery;
+	public $loggedin;
+	public $username;
+	public $userpageUrlDetails;
+
+	/**
+	 * Add specific styles for this skin
+	 *
+	 * @param OutputPage $out
+	 */
+	public function setupSkinUserCss( OutputPage $out ) {
+		$moduleStyles = [
+			'mediawiki.legacy.shared',
+			'mediawiki.legacy.commonPrint',
+			'mediawiki.sectionAnchor'
+		];
+		if ( $out->isSyndicated() ) {
+			$moduleStyles[] = 'mediawiki.feedlink';
+		}
+
+		// Deprecated since 1.26: Unconditional loading of mediawiki.ui.button
+		// on every page is deprecated. Express a dependency instead.
+		if ( strpos( $out->getHTML(), 'mw-ui-button' ) !== false ) {
+			$moduleStyles[] = 'mediawiki.ui.button';
+		}
+
+		$out->addModuleStyles( $moduleStyles );
+	}
+
+	/**
+	 * Create the template engine object; we feed it a bunch of data
+	 * and eventually it spits out some HTML. Should have interface
+	 * roughly equivalent to PHPTAL 0.7.
+	 *
+	 * @param string $classname
+	 * @param bool|string $repository Subdirectory where we keep template files
+	 * @param bool|string $cache_dir
+	 * @return QuickTemplate
+	 * @private
+	 */
+	function setupTemplate( $classname, $repository = false, $cache_dir = false ) {
+		return new $classname( $this->getConfig() );
+	}
+
+	/**
+	 * Generates array of language links for the current page
+	 *
+	 * @return array
+	 */
+	public function getLanguages() {
+		global $wgHideInterlanguageLinks;
+		if ( $wgHideInterlanguageLinks ) {
+			return [];
+		}
+
+		$userLang = $this->getLanguage();
+		$languageLinks = [];
+
+		foreach ( $this->getOutput()->getLanguageLinks() as $languageLinkText ) {
+			$class = 'interlanguage-link interwiki-' . explode( ':', $languageLinkText, 2 )[0];
+
+			$languageLinkTitle = Title::newFromText( $languageLinkText );
+			if ( $languageLinkTitle ) {
+				$ilInterwikiCode = $languageLinkTitle->getInterwiki();
+				$ilLangName = Language::fetchLanguageName( $ilInterwikiCode );
+
+				if ( strval( $ilLangName ) === '' ) {
+					$ilDisplayTextMsg = wfMessage( "interlanguage-link-$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->formatLanguageName( $ilLangName );
+				}
+
+				// CLDR extension or similar is required to localize the language name;
+				// otherwise we'll end up with the autonym again.
+				$ilLangLocalName = Language::fetchLanguageName(
+					$ilInterwikiCode,
+					$userLang->getCode()
+				);
+
+				$languageLinkTitleText = $languageLinkTitle->getText();
+				if ( $ilLangLocalName === '' ) {
+					$ilFriendlySiteName = wfMessage( "interlanguage-link-sitename-$ilInterwikiCode" );
+					if ( !$ilFriendlySiteName->isDisabled() ) {
+						if ( $languageLinkTitleText === '' ) {
+							$ilTitle = wfMessage(
+								'interlanguage-link-title-nonlangonly',
+								$ilFriendlySiteName->text()
+							)->text();
+						} else {
+							$ilTitle = wfMessage(
+								'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 = wfMessage(
+						'interlanguage-link-title-langonly',
+						$ilLangLocalName
+					)->text();
+				} else {
+					$ilTitle = wfMessage(
+						'interlanguage-link-title',
+						$languageLinkTitleText,
+						$ilLangLocalName
+					)->text();
+				}
+
+				$ilInterwikiCodeBCP47 = LanguageCode::bcp47( $ilInterwikiCode );
+				$languageLink = [
+					'href' => $languageLinkTitle->getFullURL(),
+					'text' => $ilLangName,
+					'title' => $ilTitle,
+					'class' => $class,
+					'link-class' => 'interlanguage-link-target',
+					'lang' => $ilInterwikiCodeBCP47,
+					'hreflang' => $ilInterwikiCodeBCP47,
+				];
+				Hooks::run(
+					'SkinTemplateGetLanguageLink',
+					[ &$languageLink, $languageLinkTitle, $this->getTitle(), $this->getOutput() ]
+				);
+				$languageLinks[] = $languageLink;
+			}
+		}
+
+		return $languageLinks;
+	}
+
+	protected function setupTemplateForOutput() {
+		$request = $this->getRequest();
+		$user = $this->getUser();
+		$title = $this->getTitle();
+
+		$tpl = $this->setupTemplate( $this->template, 'skins' );
+
+		$this->thispage = $title->getPrefixedDBkey();
+		$this->titletxt = $title->getPrefixedText();
+		$this->userpage = $user->getUserPage()->getPrefixedText();
+		$query = [];
+		if ( !$request->wasPosted() ) {
+			$query = $request->getValues();
+			unset( $query['title'] );
+			unset( $query['returnto'] );
+			unset( $query['returntoquery'] );
+		}
+		$this->thisquery = wfArrayToCgi( $query );
+		$this->loggedin = $user->isLoggedIn();
+		$this->username = $user->getName();
+
+		if ( $this->loggedin ) {
+			$this->userpageUrlDetails = self::makeUrlDetails( $this->userpage );
+		} else {
+			# This won't be used in the standard skins, but we define it to preserve the interface
+			# To save time, we check for existence
+			$this->userpageUrlDetails = self::makeKnownUrlDetails( $this->userpage );
+		}
+
+		return $tpl;
+	}
+
+	/**
+	 * initialize various variables and generate the template
+	 *
+	 * @param OutputPage $out
+	 */
+	function outputPage( OutputPage $out = null ) {
+		Profiler::instance()->setTemplated( true );
+
+		$oldContext = null;
+		if ( $out !== null ) {
+			// Deprecated since 1.20, note added in 1.25
+			wfDeprecated( __METHOD__, '1.25' );
+			$oldContext = $this->getContext();
+			$this->setContext( $out->getContext() );
+		}
+
+		$out = $this->getOutput();
+
+		$this->initPage( $out );
+		$tpl = $this->prepareQuickTemplate();
+		// execute template
+		$res = $tpl->execute();
+
+		// result may be an error
+		$this->printOrError( $res );
+
+		if ( $oldContext ) {
+			$this->setContext( $oldContext );
+		}
+	}
+
+	/**
+	 * Wrap the body text with language information and identifiable element
+	 *
+	 * @param Title $title
+	 * @param string $html body text
+	 * @return string html
+	 */
+	protected function wrapHTML( $title, $html ) {
+		# An ID that includes the actual body text; without categories, contentSub, ...
+		$realBodyAttribs = [ 'id' => 'mw-content-text' ];
+
+		# Add a mw-content-ltr/rtl class to be able to style based on text
+		# direction when the content is different from the UI language (only
+		# when viewing)
+		# Most information on special pages and file pages is in user language,
+		# rather than content language, so those will not get this
+		if ( Action::getActionName( $this ) === 'view' &&
+			( !$title->inNamespaces( NS_SPECIAL, NS_FILE ) || $title->isRedirect() ) ) {
+			$pageLang = $title->getPageViewLanguage();
+			$realBodyAttribs['lang'] = $pageLang->getHtmlCode();
+			$realBodyAttribs['dir'] = $pageLang->getDir();
+			$realBodyAttribs['class'] = 'mw-content-' . $pageLang->getDir();
+		}
+
+		return Html::rawElement( 'div', $realBodyAttribs, $html );
+	}
+
+	/**
+	 * initialize various variables and generate the template
+	 *
+	 * @since 1.23
+	 * @return QuickTemplate The template to be executed by outputPage
+	 */
+	protected function prepareQuickTemplate() {
+		global $wgContLang, $wgScript, $wgStylePath, $wgMimeType, $wgJsMimeType,
+			$wgSitename, $wgLogo, $wgMaxCredits,
+			$wgShowCreditsIfMax, $wgArticlePath,
+			$wgScriptPath, $wgServer;
+
+		$title = $this->getTitle();
+		$request = $this->getRequest();
+		$out = $this->getOutput();
+		$tpl = $this->setupTemplateForOutput();
+
+		$tpl->set( 'title', $out->getPageTitle() );
+		$tpl->set( 'pagetitle', $out->getHTMLTitle() );
+		$tpl->set( 'displaytitle', $out->mPageLinkTitle );
+
+		$tpl->set( 'thispage', $this->thispage );
+		$tpl->set( 'titleprefixeddbkey', $this->thispage );
+		$tpl->set( 'titletext', $title->getText() );
+		$tpl->set( 'articleid', $title->getArticleID() );
+
+		$tpl->set( 'isarticle', $out->isArticle() );
+
+		$subpagestr = $this->subPageSubtitle();
+		if ( $subpagestr !== '' ) {
+			$subpagestr = '<span class="subpages">' . $subpagestr . '</span>';
+		}
+		$tpl->set( 'subtitle', $subpagestr . $out->getSubtitle() );
+
+		$undelete = $this->getUndeleteLink();
+		if ( $undelete === '' ) {
+			$tpl->set( 'undelete', '' );
+		} else {
+			$tpl->set( 'undelete', '<span class="subpages">' . $undelete . '</span>' );
+		}
+
+		$tpl->set( 'catlinks', $this->getCategories() );
+		if ( $out->isSyndicated() ) {
+			$feeds = [];
+			foreach ( $out->getSyndicationLinks() as $format => $link ) {
+				$feeds[$format] = [
+					// Messages: feed-atom, feed-rss
+					'text' => $this->msg( "feed-$format" )->text(),
+					'href' => $link
+				];
+			}
+			$tpl->set( 'feeds', $feeds );
+		} else {
+			$tpl->set( 'feeds', false );
+		}
+
+		$tpl->set( 'mimetype', $wgMimeType );
+		$tpl->set( 'jsmimetype', $wgJsMimeType );
+		$tpl->set( 'charset', 'UTF-8' );
+		$tpl->set( 'wgScript', $wgScript );
+		$tpl->set( 'skinname', $this->skinname );
+		$tpl->set( 'skinclass', static::class );
+		$tpl->set( 'skin', $this );
+		$tpl->set( 'stylename', $this->stylename );
+		$tpl->set( 'printable', $out->isPrintable() );
+		$tpl->set( 'handheld', $request->getBool( 'handheld' ) );
+		$tpl->set( 'loggedin', $this->loggedin );
+		$tpl->set( 'notspecialpage', !$title->isSpecialPage() );
+		$tpl->set( 'searchaction', $this->escapeSearchLink() );
+		$tpl->set( 'searchtitle', SpecialPage::getTitleFor( 'Search' )->getPrefixedDBkey() );
+		$tpl->set( 'search', trim( $request->getVal( 'search' ) ) );
+		$tpl->set( 'stylepath', $wgStylePath );
+		$tpl->set( 'articlepath', $wgArticlePath );
+		$tpl->set( 'scriptpath', $wgScriptPath );
+		$tpl->set( 'serverurl', $wgServer );
+		$tpl->set( 'logopath', $wgLogo );
+		$tpl->set( 'sitename', $wgSitename );
+
+		$userLang = $this->getLanguage();
+		$userLangCode = $userLang->getHtmlCode();
+		$userLangDir = $userLang->getDir();
+
+		$tpl->set( 'lang', $userLangCode );
+		$tpl->set( 'dir', $userLangDir );
+		$tpl->set( 'rtl', $userLang->isRTL() );
+
+		$tpl->set( 'capitalizeallnouns', $userLang->capitalizeAllNouns() ? ' capitalize-all-nouns' : '' );
+		$tpl->set( 'showjumplinks', true ); // showjumplinks preference has been removed
+		$tpl->set( 'username', $this->loggedin ? $this->username : null );
+		$tpl->set( 'userpage', $this->userpage );
+		$tpl->set( 'userpageurl', $this->userpageUrlDetails['href'] );
+		$tpl->set( 'userlang', $userLangCode );
+
+		// Users can have their language set differently than the
+		// content of the wiki. For these users, tell the web browser
+		// that interface elements are in a different language.
+		$tpl->set( 'userlangattributes', '' );
+		$tpl->set( 'specialpageattributes', '' ); # obsolete
+		// Used by VectorBeta to insert HTML before content but after the
+		// heading for the page title. Defaults to empty string.
+		$tpl->set( 'prebodyhtml', '' );
+
+		if ( $userLangCode !== $wgContLang->getHtmlCode() || $userLangDir !== $wgContLang->getDir() ) {
+			$escUserlang = htmlspecialchars( $userLangCode );
+			$escUserdir = htmlspecialchars( $userLangDir );
+			// Attributes must be in double quotes because htmlspecialchars() doesn't
+			// escape single quotes
+			$attrs = " lang=\"$escUserlang\" dir=\"$escUserdir\"";
+			$tpl->set( 'userlangattributes', $attrs );
+		}
+
+		$tpl->set( 'newtalk', $this->getNewtalks() );
+		$tpl->set( 'logo', $this->logoText() );
+
+		$tpl->set( 'copyright', false );
+		// No longer used
+		$tpl->set( 'viewcount', false );
+		$tpl->set( 'lastmod', false );
+		$tpl->set( 'credits', false );
+		$tpl->set( 'numberofwatchingusers', false );
+		if ( $out->isArticle() && $title->exists() ) {
+			if ( $this->isRevisionCurrent() ) {
+				if ( $wgMaxCredits != 0 ) {
+					$tpl->set( 'credits', Action::factory( 'credits', $this->getWikiPage(),
+						$this->getContext() )->getCredits( $wgMaxCredits, $wgShowCreditsIfMax ) );
+				} else {
+					$tpl->set( 'lastmod', $this->lastModified() );
+				}
+			}
+			$tpl->set( 'copyright', $this->getCopyright() );
+		}
+
+		$tpl->set( 'copyrightico', $this->getCopyrightIcon() );
+		$tpl->set( 'poweredbyico', $this->getPoweredBy() );
+		$tpl->set( 'disclaimer', $this->disclaimerLink() );
+		$tpl->set( 'privacy', $this->privacyLink() );
+		$tpl->set( 'about', $this->aboutLink() );
+
+		$tpl->set( 'footerlinks', [
+			'info' => [
+				'lastmod',
+				'numberofwatchingusers',
+				'credits',
+				'copyright',
+			],
+			'places' => [
+				'privacy',
+				'about',
+				'disclaimer',
+			],
+		] );
+
+		global $wgFooterIcons;
+		$tpl->set( 'footericons', $wgFooterIcons );
+		foreach ( $tpl->data['footericons'] as $footerIconsKey => &$footerIconsBlock ) {
+			if ( count( $footerIconsBlock ) > 0 ) {
+				foreach ( $footerIconsBlock as &$footerIcon ) {
+					if ( isset( $footerIcon['src'] ) ) {
+						if ( !isset( $footerIcon['width'] ) ) {
+							$footerIcon['width'] = 88;
+						}
+						if ( !isset( $footerIcon['height'] ) ) {
+							$footerIcon['height'] = 31;
+						}
+					}
+				}
+			} else {
+				unset( $tpl->data['footericons'][$footerIconsKey] );
+			}
+		}
+
+		$tpl->set( 'indicators', $out->getIndicators() );
+
+		$tpl->set( 'sitenotice', $this->getSiteNotice() );
+		$tpl->set( 'printfooter', $this->printSource() );
+		// Wrap the bodyText with #mw-content-text element
+		$out->mBodytext = $this->wrapHTML( $title, $out->mBodytext );
+		$tpl->set( 'bodytext', $out->mBodytext );
+
+		$language_urls = $this->getLanguages();
+		if ( count( $language_urls ) ) {
+			$tpl->set( 'language_urls', $language_urls );
+		} else {
+			$tpl->set( 'language_urls', false );
+		}
+
+		# Personal toolbar
+		$tpl->set( 'personal_urls', $this->buildPersonalUrls() );
+		$content_navigation = $this->buildContentNavigationUrls();
+		$content_actions = $this->buildContentActionUrls( $content_navigation );
+		$tpl->set( 'content_navigation', $content_navigation );
+		$tpl->set( 'content_actions', $content_actions );
+
+		$tpl->set( 'sidebar', $this->buildSidebar() );
+		$tpl->set( 'nav_urls', $this->buildNavUrls() );
+
+		// Do this last in case hooks above add bottom scripts
+		$tpl->set( 'bottomscripts', $this->bottomScripts() );
+
+		// Set the head scripts near the end, in case the above actions resulted in added scripts
+		$tpl->set( 'headelement', $out->headElement( $this ) );
+
+		$tpl->set( 'debug', '' );
+		$tpl->set( 'debughtml', $this->generateDebugHTML() );
+		$tpl->set( 'reporttime', wfReportTime() );
+
+		// Avoid PHP 7.1 warning of passing $this by reference
+		$skinTemplate = $this;
+		// original version by hansm
+		if ( !Hooks::run( 'SkinTemplateOutputPageBeforeExec', [ &$skinTemplate, &$tpl ] ) ) {
+			wfDebug( __METHOD__ . ": Hook SkinTemplateOutputPageBeforeExec broke outputPage execution!\n" );
+		}
+
+		// Set the bodytext to another key so that skins can just output it on its own
+		// and output printfooter and debughtml separately
+		$tpl->set( 'bodycontent', $tpl->data['bodytext'] );
+
+		// Append printfooter and debughtml onto bodytext so that skins that
+		// were already using bodytext before they were split out don't suddenly
+		// start not outputting information.
+		$tpl->data['bodytext'] .= Html::rawElement(
+			'div',
+			[ 'class' => 'printfooter' ],
+			"\n{$tpl->data['printfooter']}"
+		) . "\n";
+		$tpl->data['bodytext'] .= $tpl->data['debughtml'];
+
+		// allow extensions adding stuff after the page content.
+		// See Skin::afterContentHook() for further documentation.
+		$tpl->set( 'dataAfterContent', $this->afterContentHook() );
+
+		return $tpl;
+	}
+
+	/**
+	 * Get the HTML for the p-personal list
+	 * @return string
+	 */
+	public function getPersonalToolsList() {
+		return $this->makePersonalToolsList();
+	}
+
+	/**
+	 * Get the HTML for the personal tools list
+	 *
+	 * @since 1.31
+	 *
+	 * @param array $personalTools
+	 * @param array $options
+	 * @return string
+	 */
+	public function makePersonalToolsList( $personalTools = null, $options = [] ) {
+		$tpl = $this->setupTemplateForOutput();
+		$tpl->set( 'personal_urls', $this->buildPersonalUrls() );
+		$html = '';
+
+		if ( $personalTools === null ) {
+			$personalTools = $tpl->getPersonalTools();
+		}
+
+		foreach ( $personalTools as $key => $item ) {
+			$html .= $tpl->makeListItem( $key, $item, $options );
+		}
+
+		return $html;
+	}
+
+	/**
+	 * Get personal tools for the user
+	 *
+	 * @since 1.31
+	 *
+	 * @return array Array of personal tools
+	 */
+	public function getStructuredPersonalTools() {
+		$tpl = $this->setupTemplateForOutput();
+		$tpl->set( 'personal_urls', $this->buildPersonalUrls() );
+
+		return $tpl->getPersonalTools();
+	}
+
+	/**
+	 * Format language name for use in sidebar interlanguage links list.
+	 * By default it is capitalized.
+	 *
+	 * @param string $name Language name, e.g. "English" or "español"
+	 * @return string
+	 * @private
+	 */
+	function formatLanguageName( $name ) {
+		return $this->getLanguage()->ucfirst( $name );
+	}
+
+	/**
+	 * Output the string, or print error message if it's
+	 * an error object of the appropriate type.
+	 * For the base class, assume strings all around.
+	 *
+	 * @param string $str
+	 * @private
+	 */
+	function printOrError( $str ) {
+		echo $str;
+	}
+
+	/**
+	 * Output a boolean indicating if buildPersonalUrls should output separate
+	 * login and create account links or output a combined link
+	 * By default we simply return a global config setting that affects most skins
+	 * This is setup as a method so that like with $wgLogo and getLogo() a skin
+	 * can override this setting and always output one or the other if it has
+	 * a reason it can't output one of the two modes.
+	 * @return bool
+	 */
+	function useCombinedLoginLink() {
+		global $wgUseCombinedLoginLink;
+		return $wgUseCombinedLoginLink;
+	}
+
+	/**
+	 * build array of urls for personal toolbar
+	 * @return array
+	 */
+	protected function buildPersonalUrls() {
+		$title = $this->getTitle();
+		$request = $this->getRequest();
+		$pageurl = $title->getLocalURL();
+		$authManager = AuthManager::singleton();
+
+		/* set up the default links for the personal toolbar */
+		$personal_urls = [];
+
+		# Due to T34276, if a user does not have read permissions,
+		# $this->getTitle() will just give Special:Badtitle, which is
+		# not especially useful as a returnto parameter. Use the title
+		# from the request instead, if there was one.
+		if ( $this->getUser()->isAllowed( 'read' ) ) {
+			$page = $this->getTitle();
+		} else {
+			$page = Title::newFromText( $request->getVal( 'title', '' ) );
+		}
+		$page = $request->getVal( 'returnto', $page );
+		$returnto = [];
+		if ( strval( $page ) !== '' ) {
+			$returnto['returnto'] = $page;
+			$query = $request->getVal( 'returntoquery', $this->thisquery );
+			$paramsArray = wfCgiToArray( $query );
+			unset( $paramsArray['logoutToken'] );
+			$query = wfArrayToCgi( $paramsArray );
+			if ( $query != '' ) {
+				$returnto['returntoquery'] = $query;
+			}
+		}
+
+		if ( $this->loggedin ) {
+			$personal_urls['userpage'] = [
+				'text' => $this->username,
+				'href' => &$this->userpageUrlDetails['href'],
+				'class' => $this->userpageUrlDetails['exists'] ? false : 'new',
+				'exists' => $this->userpageUrlDetails['exists'],
+				'active' => ( $this->userpageUrlDetails['href'] == $pageurl ),
+				'dir' => 'auto'
+			];
+			$usertalkUrlDetails = $this->makeTalkUrlDetails( $this->userpage );
+			$personal_urls['mytalk'] = [
+				'text' => $this->msg( 'mytalk' )->text(),
+				'href' => &$usertalkUrlDetails['href'],
+				'class' => $usertalkUrlDetails['exists'] ? false : 'new',
+				'exists' => $usertalkUrlDetails['exists'],
+				'active' => ( $usertalkUrlDetails['href'] == $pageurl )
+			];
+			$href = self::makeSpecialUrl( 'Preferences' );
+			$personal_urls['preferences'] = [
+				'text' => $this->msg( 'mypreferences' )->text(),
+				'href' => $href,
+				'active' => ( $href == $pageurl )
+			];
+
+			if ( $this->getUser()->isAllowed( 'viewmywatchlist' ) ) {
+				$href = self::makeSpecialUrl( 'Watchlist' );
+				$personal_urls['watchlist'] = [
+					'text' => $this->msg( 'mywatchlist' )->text(),
+					'href' => $href,
+					'active' => ( $href == $pageurl )
+				];
+			}
+
+			# We need to do an explicit check for Special:Contributions, as we
+			# have to match both the title, and the target, which could come
+			# from request values (Special:Contributions?target=Jimbo_Wales)
+			# or be specified in "sub page" form
+			# (Special:Contributions/Jimbo_Wales). The plot
+			# thickens, because the Title object is altered for special pages,
+			# so it doesn't contain the original alias-with-subpage.
+			$origTitle = Title::newFromText( $request->getText( 'title' ) );
+			if ( $origTitle instanceof Title && $origTitle->isSpecialPage() ) {
+				list( $spName, $spPar ) = SpecialPageFactory::resolveAlias( $origTitle->getText() );
+				$active = $spName == 'Contributions'
+					&& ( ( $spPar && $spPar == $this->username )
+						|| $request->getText( 'target' ) == $this->username );
+			} else {
+				$active = false;
+			}
+
+			$href = self::makeSpecialUrlSubpage( 'Contributions', $this->username );
+			$personal_urls['mycontris'] = [
+				'text' => $this->msg( 'mycontris' )->text(),
+				'href' => $href,
+				'active' => $active
+			];
+
+			// if we can't set the user, we can't unset it either
+			if ( $request->getSession()->canSetUser() ) {
+				$personal_urls['logout'] = [
+					'text' => $this->msg( 'pt-userlogout' )->text(),
+					'href' => self::makeSpecialUrl( 'Userlogout',
+						// Note: userlogout link must always contain an & character, otherwise we might not be able
+						// to detect a buggy precaching proxy (T19790)
+						( $title->isSpecial( 'Preferences' ) ? [] : $returnto )
+						+ [ 'logoutToken' => $this->getUser()->getEditToken( 'logoutToken', $this->getRequest() ) ] ),
+					'active' => false
+				];
+			}
+		} else {
+			$useCombinedLoginLink = $this->useCombinedLoginLink();
+			if ( !$authManager->canCreateAccounts() || !$authManager->canAuthenticateNow() ) {
+				// don't show combined login/signup link if one of those is actually not available
+				$useCombinedLoginLink = false;
+			}
+
+			$loginlink = $this->getUser()->isAllowed( 'createaccount' ) && $useCombinedLoginLink
+				? 'nav-login-createaccount'
+				: 'pt-login';
+
+			$login_url = [
+				'text' => $this->msg( $loginlink )->text(),
+				'href' => self::makeSpecialUrl( 'Userlogin', $returnto ),
+				'active' => $title->isSpecial( 'Userlogin' )
+					|| $title->isSpecial( 'CreateAccount' ) && $useCombinedLoginLink,
+			];
+			$createaccount_url = [
+				'text' => $this->msg( 'pt-createaccount' )->text(),
+				'href' => self::makeSpecialUrl( 'CreateAccount', $returnto ),
+				'active' => $title->isSpecial( 'CreateAccount' ),
+			];
+
+			// No need to show Talk and Contributions to anons if they can't contribute!
+			if ( User::groupHasPermission( '*', 'edit' ) ) {
+				// Because of caching, we can't link directly to the IP talk and
+				// contributions pages. Instead we use the special page shortcuts
+				// (which work correctly regardless of caching). This means we can't
+				// determine whether these links are active or not, but since major
+				// skins (MonoBook, Vector) don't use this information, it's not a
+				// huge loss.
+				$personal_urls['anontalk'] = [
+					'text' => $this->msg( 'anontalk' )->text(),
+					'href' => self::makeSpecialUrlSubpage( 'Mytalk', false ),
+					'active' => false
+				];
+				$personal_urls['anoncontribs'] = [
+					'text' => $this->msg( 'anoncontribs' )->text(),
+					'href' => self::makeSpecialUrlSubpage( 'Mycontributions', false ),
+					'active' => false
+				];
+			}
+
+			if (
+				$authManager->canCreateAccounts()
+				&& $this->getUser()->isAllowed( 'createaccount' )
+				&& !$useCombinedLoginLink
+			) {
+				$personal_urls['createaccount'] = $createaccount_url;
+			}
+
+			if ( $authManager->canAuthenticateNow() ) {
+				$key = User::groupHasPermission( '*', 'read' )
+					? 'login'
+					: 'login-private';
+				$personal_urls[$key] = $login_url;
+			}
+		}
+
+		Hooks::runWithoutAbort( 'PersonalUrls', [ &$personal_urls, &$title, $this ] );
+		return $personal_urls;
+	}
+
+	/**
+	 * Builds an array with tab definition
+	 *
+	 * @param Title $title Page Where the tab links to
+	 * @param string|array $message Message key or an array of message keys (will fall back)
+	 * @param bool $selected Display the tab as selected
+	 * @param string $query Query string attached to tab URL
+	 * @param bool $checkEdit Check if $title exists and mark with .new if one doesn't
+	 *
+	 * @return array
+	 */
+	function tabAction( $title, $message, $selected, $query = '', $checkEdit = false ) {
+		$classes = [];
+		if ( $selected ) {
+			$classes[] = 'selected';
+		}
+		$exists = true;
+		if ( $checkEdit && !$title->isKnown() ) {
+			$classes[] = 'new';
+			$exists = false;
+			if ( $query !== '' ) {
+				$query = 'action=edit&redlink=1&' . $query;
+			} else {
+				$query = 'action=edit&redlink=1';
+			}
+		}
+
+		$linkClass = MediaWikiServices::getInstance()->getLinkRenderer()->getLinkClasses( $title );
+
+		// wfMessageFallback will nicely accept $message as an array of fallbacks
+		// or just a single key
+		$msg = wfMessageFallback( $message )->setContext( $this->getContext() );
+		if ( is_array( $message ) ) {
+			// for hook compatibility just keep the last message name
+			$message = end( $message );
+		}
+		if ( $msg->exists() ) {
+			$text = $msg->text();
+		} else {
+			global $wgContLang;
+			$text = $wgContLang->getConverter()->convertNamespace(
+				MWNamespace::getSubject( $title->getNamespace() ) );
+		}
+
+		// Avoid PHP 7.1 warning of passing $this by reference
+		$skinTemplate = $this;
+		$result = [];
+		if ( !Hooks::run( 'SkinTemplateTabAction', [ &$skinTemplate,
+				$title, $message, $selected, $checkEdit,
+				&$classes, &$query, &$text, &$result ] ) ) {
+			return $result;
+		}
+
+		$result = [
+			'class' => implode( ' ', $classes ),
+			'text' => $text,
+			'href' => $title->getLocalURL( $query ),
+			'exists' => $exists,
+			'primary' => true ];
+		if ( $linkClass !== '' ) {
+			$result['link-class'] = $linkClass;
+		}
+
+		return $result;
+	}
+
+	function makeTalkUrlDetails( $name, $urlaction = '' ) {
+		$title = Title::newFromText( $name );
+		if ( !is_object( $title ) ) {
+			throw new MWException( __METHOD__ . " given invalid pagename $name" );
+		}
+		$title = $title->getTalkPage();
+		self::checkTitle( $title, $name );
+		return [
+			'href' => $title->getLocalURL( $urlaction ),
+			'exists' => $title->isKnown(),
+		];
+	}
+
+	/**
+	 * @todo is this even used?
+	 * @param string $name
+	 * @param string $urlaction
+	 * @return array
+	 */
+	function makeArticleUrlDetails( $name, $urlaction = '' ) {
+		$title = Title::newFromText( $name );
+		$title = $title->getSubjectPage();
+		self::checkTitle( $title, $name );
+		return [
+			'href' => $title->getLocalURL( $urlaction ),
+			'exists' => $title->exists(),
+		];
+	}
+
+	/**
+	 * a structured array of links usually used for the tabs in a skin
+	 *
+	 * There are 4 standard sections
+	 * namespaces: Used for namespace tabs like special, page, and talk namespaces
+	 * views: Used for primary page views like read, edit, history
+	 * actions: Used for most extra page actions like deletion, protection, etc...
+	 * variants: Used to list the language variants for the page
+	 *
+	 * Each section's value is a key/value array of links for that section.
+	 * The links themselves have these common keys:
+	 * - class: The css classes to apply to the tab
+	 * - text: The text to display on the tab
+	 * - href: The href for the tab to point to
+	 * - rel: An optional rel= for the tab's link
+	 * - redundant: If true the tab will be dropped in skins using content_actions
+	 *   this is useful for tabs like "Read" which only have meaning in skins that
+	 *   take special meaning from the grouped structure of content_navigation
+	 *
+	 * Views also have an extra key which can be used:
+	 * - primary: If this is not true skins like vector may try to hide the tab
+	 *            when the user has limited space in their browser window
+	 *
+	 * content_navigation using code also expects these ids to be present on the
+	 * links, however these are usually automatically generated by SkinTemplate
+	 * itself and are not necessary when using a hook. The only things these may
+	 * matter to are people modifying content_navigation after it's initial creation:
+	 * - id: A "preferred" id, most skins are best off outputting this preferred
+	 *   id for best compatibility.
+	 * - tooltiponly: This is set to true for some tabs in cases where the system
+	 *   believes that the accesskey should not be added to the tab.
+	 *
+	 * @return array
+	 */
+	protected function buildContentNavigationUrls() {
+		global $wgDisableLangConversion;
+
+		// Display tabs for the relevant title rather than always the title itself
+		$title = $this->getRelevantTitle();
+		$onPage = $title->equals( $this->getTitle() );
+
+		$out = $this->getOutput();
+		$request = $this->getRequest();
+		$user = $this->getUser();
+
+		$content_navigation = [
+			'namespaces' => [],
+			'views' => [],
+			'actions' => [],
+			'variants' => []
+		];
+
+		// parameters
+		$action = $request->getVal( 'action', 'view' );
+
+		$userCanRead = $title->quickUserCan( 'read', $user );
+
+		// Avoid PHP 7.1 warning of passing $this by reference
+		$skinTemplate = $this;
+		$preventActiveTabs = false;
+		Hooks::run( 'SkinTemplatePreventOtherActiveTabs', [ &$skinTemplate, &$preventActiveTabs ] );
+
+		// Checks if page is some kind of content
+		if ( $title->canExist() ) {
+			// Gets page objects for the related namespaces
+			$subjectPage = $title->getSubjectPage();
+			$talkPage = $title->getTalkPage();
+
+			// Determines if this is a talk page
+			$isTalk = $title->isTalkPage();
+
+			// Generates XML IDs from namespace names
+			$subjectId = $title->getNamespaceKey( '' );
+
+			if ( $subjectId == 'main' ) {
+				$talkId = 'talk';
+			} else {
+				$talkId = "{$subjectId}_talk";
+			}
+
+			$skname = $this->skinname;
+
+			// Adds namespace links
+			$subjectMsg = [ "nstab-$subjectId" ];
+			if ( $subjectPage->isMainPage() ) {
+				array_unshift( $subjectMsg, 'mainpage-nstab' );
+			}
+			$content_navigation['namespaces'][$subjectId] = $this->tabAction(
+				$subjectPage, $subjectMsg, !$isTalk && !$preventActiveTabs, '', $userCanRead
+			);
+			$content_navigation['namespaces'][$subjectId]['context'] = 'subject';
+			$content_navigation['namespaces'][$talkId] = $this->tabAction(
+				$talkPage, [ "nstab-$talkId", 'talk' ], $isTalk && !$preventActiveTabs, '', $userCanRead
+			);
+			$content_navigation['namespaces'][$talkId]['context'] = 'talk';
+
+			if ( $userCanRead ) {
+				// Adds "view" view link
+				if ( $title->isKnown() ) {
+					$content_navigation['views']['view'] = $this->tabAction(
+						$isTalk ? $talkPage : $subjectPage,
+						[ "$skname-view-view", 'view' ],
+						( $onPage && ( $action == 'view' || $action == 'purge' ) ), '', true
+					);
+					// signal to hide this from simple content_actions
+					$content_navigation['views']['view']['redundant'] = true;
+				}
+
+				$page = $this->canUseWikiPage() ? $this->getWikiPage() : false;
+				$isRemoteContent = $page && !$page->isLocal();
+
+				// If it is a non-local file, show a link to the file in its own repository
+				// @todo abstract this for remote content that isn't a file
+				if ( $isRemoteContent ) {
+					$content_navigation['views']['view-foreign'] = [
+						'class' => '',
+						'text' => wfMessageFallback( "$skname-view-foreign", 'view-foreign' )->
+							setContext( $this->getContext() )->
+							params( $page->getWikiDisplayName() )->text(),
+						'href' => $page->getSourceURL(),
+						'primary' => false,
+					];
+				}
+
+				// Checks if user can edit the current page if it exists or create it otherwise
+				if ( $title->quickUserCan( 'edit', $user )
+					&& ( $title->exists() || $title->quickUserCan( 'create', $user ) )
+				) {
+					// Builds CSS class for talk page links
+					$isTalkClass = $isTalk ? ' istalk' : '';
+					// Whether the user is editing the page
+					$isEditing = $onPage && ( $action == 'edit' || $action == 'submit' );
+					// Whether to show the "Add a new section" tab
+					// Checks if this is a current rev of talk page and is not forced to be hidden
+					$showNewSection = !$out->forceHideNewSectionLink()
+						&& ( ( $isTalk && $this->isRevisionCurrent() ) || $out->showNewSectionLink() );
+					$section = $request->getVal( 'section' );
+
+					if ( $title->exists()
+						|| ( $title->getNamespace() == NS_MEDIAWIKI
+							&& $title->getDefaultMessageText() !== false
+						)
+					) {
+						$msgKey = $isRemoteContent ? 'edit-local' : 'edit';
+					} else {
+						$msgKey = $isRemoteContent ? 'create-local' : 'create';
+					}
+					$content_navigation['views']['edit'] = [
+						'class' => ( $isEditing && ( $section !== 'new' || !$showNewSection )
+							? 'selected'
+							: ''
+						) . $isTalkClass,
+						'text' => wfMessageFallback( "$skname-view-$msgKey", $msgKey )
+							->setContext( $this->getContext() )->text(),
+						'href' => $title->getLocalURL( $this->editUrlOptions() ),
+						'primary' => !$isRemoteContent, // don't collapse this in vector
+					];
+
+					// section link
+					if ( $showNewSection ) {
+						// Adds new section link
+						// $content_navigation['actions']['addsection']
+						$content_navigation['views']['addsection'] = [
+							'class' => ( $isEditing && $section == 'new' ) ? 'selected' : false,
+							'text' => wfMessageFallback( "$skname-action-addsection", 'addsection' )
+								->setContext( $this->getContext() )->text(),
+							'href' => $title->getLocalURL( 'action=edit&section=new' )
+						];
+					}
+				// Checks if the page has some kind of viewable source content
+				} elseif ( $title->hasSourceText() ) {
+					// Adds view source view link
+					$content_navigation['views']['viewsource'] = [
+						'class' => ( $onPage && $action == 'edit' ) ? 'selected' : false,
+						'text' => wfMessageFallback( "$skname-action-viewsource", 'viewsource' )
+							->setContext( $this->getContext() )->text(),
+						'href' => $title->getLocalURL( $this->editUrlOptions() ),
+						'primary' => true, // don't collapse this in vector
+					];
+				}
+
+				// Checks if the page exists
+				if ( $title->exists() ) {
+					// Adds history view link
+					$content_navigation['views']['history'] = [
+						'class' => ( $onPage && $action == 'history' ) ? 'selected' : false,
+						'text' => wfMessageFallback( "$skname-view-history", 'history_short' )
+							->setContext( $this->getContext() )->text(),
+						'href' => $title->getLocalURL( 'action=history' ),
+					];
+
+					if ( $title->quickUserCan( 'delete', $user ) ) {
+						$content_navigation['actions']['delete'] = [
+							'class' => ( $onPage && $action == 'delete' ) ? 'selected' : false,
+							'text' => wfMessageFallback( "$skname-action-delete", 'delete' )
+								->setContext( $this->getContext() )->text(),
+							'href' => $title->getLocalURL( 'action=delete' )
+						];
+					}
+
+					if ( $title->quickUserCan( 'move', $user ) ) {
+						$moveTitle = SpecialPage::getTitleFor( 'Movepage', $title->getPrefixedDBkey() );
+						$content_navigation['actions']['move'] = [
+							'class' => $this->getTitle()->isSpecial( 'Movepage' ) ? 'selected' : false,
+							'text' => wfMessageFallback( "$skname-action-move", 'move' )
+								->setContext( $this->getContext() )->text(),
+							'href' => $moveTitle->getLocalURL()
+						];
+					}
+				} else {
+					// article doesn't exist or is deleted
+					if ( $user->isAllowed( 'deletedhistory' ) ) {
+						$n = $title->isDeleted();
+						if ( $n ) {
+							$undelTitle = SpecialPage::getTitleFor( 'Undelete', $title->getPrefixedDBkey() );
+							// If the user can't undelete but can view deleted
+							// history show them a "View .. deleted" tab instead.
+							$msgKey = $user->isAllowed( 'undelete' ) ? 'undelete' : 'viewdeleted';
+							$content_navigation['actions']['undelete'] = [
+								'class' => $this->getTitle()->isSpecial( 'Undelete' ) ? 'selected' : false,
+								'text' => wfMessageFallback( "$skname-action-$msgKey", "{$msgKey}_short" )
+									->setContext( $this->getContext() )->numParams( $n )->text(),
+								'href' => $undelTitle->getLocalURL()
+							];
+						}
+					}
+				}
+
+				if ( $title->quickUserCan( 'protect', $user ) && $title->getRestrictionTypes() &&
+					MWNamespace::getRestrictionLevels( $title->getNamespace(), $user ) !== [ '' ]
+				) {
+					$mode = $title->isProtected() ? 'unprotect' : 'protect';
+					$content_navigation['actions'][$mode] = [
+						'class' => ( $onPage && $action == $mode ) ? 'selected' : false,
+						'text' => wfMessageFallback( "$skname-action-$mode", $mode )
+							->setContext( $this->getContext() )->text(),
+						'href' => $title->getLocalURL( "action=$mode" )
+					];
+				}
+
+				// Checks if the user is logged in
+				if ( $this->loggedin && $user->isAllowedAll( 'viewmywatchlist', 'editmywatchlist' ) ) {
+					/**
+					 * The following actions use messages which, if made particular to
+					 * the any specific skins, would break the Ajax code which makes this
+					 * action happen entirely inline. OutputPage::getJSVars
+					 * defines a set of messages in a javascript object - and these
+					 * messages are assumed to be global for all skins. Without making
+					 * a change to that procedure these messages will have to remain as
+					 * the global versions.
+					 */
+					$mode = $user->isWatched( $title ) ? 'unwatch' : 'watch';
+					$content_navigation['actions'][$mode] = [
+						'class' => 'mw-watchlink ' . (
+							$onPage && ( $action == 'watch' || $action == 'unwatch' ) ? 'selected' : ''
+						),
+						// uses 'watch' or 'unwatch' message
+						'text' => $this->msg( $mode )->text(),
+						'href' => $title->getLocalURL( [ 'action' => $mode ] ),
+						// Set a data-mw=interface attribute, which the mediawiki.page.ajax
+						// module will look for to make sure it's a trusted link
+						'data' => [
+							'mw' => 'interface',
+						],
+					];
+				}
+			}
+
+			// Avoid PHP 7.1 warning of passing $this by reference
+			$skinTemplate = $this;
+			Hooks::runWithoutAbort(
+				'SkinTemplateNavigation',
+				[ &$skinTemplate, &$content_navigation ]
+			);
+
+			if ( $userCanRead && !$wgDisableLangConversion ) {
+				$pageLang = $title->getPageLanguage();
+				// Gets list of language variants
+				$variants = $pageLang->getVariants();
+				// Checks that language conversion is enabled and variants exist
+				// And if it is not in the special namespace
+				if ( count( $variants ) > 1 ) {
+					// Gets preferred variant (note that user preference is
+					// only possible for wiki content language variant)
+					$preferred = $pageLang->getPreferredVariant();
+					if ( Action::getActionName( $this ) === 'view' ) {
+						$params = $request->getQueryValues();
+						unset( $params['title'] );
+					} else {
+						$params = [];
+					}
+					// Loops over each variant
+					foreach ( $variants as $code ) {
+						// Gets variant name from language code
+						$varname = $pageLang->getVariantname( $code );
+						// Appends variant link
+						$content_navigation['variants'][] = [
+							'class' => ( $code == $preferred ) ? 'selected' : false,
+							'text' => $varname,
+							'href' => $title->getLocalURL( [ 'variant' => $code ] + $params ),
+							'lang' => LanguageCode::bcp47( $code ),
+							'hreflang' => LanguageCode::bcp47( $code ),
+						];
+					}
+				}
+			}
+		} else {
+			// If it's not content, it's got to be a special page
+			$content_navigation['namespaces']['special'] = [
+				'class' => 'selected',
+				'text' => $this->msg( 'nstab-special' )->text(),
+				'href' => $request->getRequestURL(), // @see: T4457, T4510
+				'context' => 'subject'
+			];
+
+			// Avoid PHP 7.1 warning of passing $this by reference
+			$skinTemplate = $this;
+			Hooks::runWithoutAbort( 'SkinTemplateNavigation::SpecialPage',
+				[ &$skinTemplate, &$content_navigation ] );
+		}
+
+		// Avoid PHP 7.1 warning of passing $this by reference
+		$skinTemplate = $this;
+		// Equiv to SkinTemplateContentActions
+		Hooks::runWithoutAbort( 'SkinTemplateNavigation::Universal',
+			[ &$skinTemplate, &$content_navigation ] );
+
+		// Setup xml ids and tooltip info
+		foreach ( $content_navigation as $section => &$links ) {
+			foreach ( $links as $key => &$link ) {
+				$xmlID = $key;
+				if ( isset( $link['context'] ) && $link['context'] == 'subject' ) {
+					$xmlID = 'ca-nstab-' . $xmlID;
+				} elseif ( isset( $link['context'] ) && $link['context'] == 'talk' ) {
+					$xmlID = 'ca-talk';
+					$link['rel'] = 'discussion';
+				} elseif ( $section == 'variants' ) {
+					$xmlID = 'ca-varlang-' . $xmlID;
+				} else {
+					$xmlID = 'ca-' . $xmlID;
+				}
+				$link['id'] = $xmlID;
+			}
+		}
+
+		# We don't want to give the watch tab an accesskey if the
+		# page is being edited, because that conflicts with the
+		# accesskey on the watch checkbox.  We also don't want to
+		# give the edit tab an accesskey, because that's fairly
+		# superfluous and conflicts with an accesskey (Ctrl-E) often
+		# used for editing in Safari.
+		if ( in_array( $action, [ 'edit', 'submit' ] ) ) {
+			if ( isset( $content_navigation['views']['edit'] ) ) {
+				$content_navigation['views']['edit']['tooltiponly'] = true;
+			}
+			if ( isset( $content_navigation['actions']['watch'] ) ) {
+				$content_navigation['actions']['watch']['tooltiponly'] = true;
+			}
+			if ( isset( $content_navigation['actions']['unwatch'] ) ) {
+				$content_navigation['actions']['unwatch']['tooltiponly'] = true;
+			}
+		}
+
+		return $content_navigation;
+	}
+
+	/**
+	 * an array of edit links by default used for the tabs
+	 * @param array $content_navigation
+	 * @return array
+	 */
+	private function buildContentActionUrls( $content_navigation ) {
+		// content_actions has been replaced with content_navigation for backwards
+		// compatibility and also for skins that just want simple tabs content_actions
+		// is now built by flattening the content_navigation arrays into one
+
+		$content_actions = [];
+
+		foreach ( $content_navigation as $links ) {
+			foreach ( $links as $key => $value ) {
+				if ( isset( $value['redundant'] ) && $value['redundant'] ) {
+					// Redundant tabs are dropped from content_actions
+					continue;
+				}
+
+				// content_actions used to have ids built using the "ca-$key" pattern
+				// so the xmlID based id is much closer to the actual $key that we want
+				// for that reason we'll just strip out the ca- if present and use
+				// the latter potion of the "id" as the $key
+				if ( isset( $value['id'] ) && substr( $value['id'], 0, 3 ) == 'ca-' ) {
+					$key = substr( $value['id'], 3 );
+				}
+
+				if ( isset( $content_actions[$key] ) ) {
+					wfDebug( __METHOD__ . ": Found a duplicate key for $key while flattening " .
+						"content_navigation into content_actions.\n" );
+					continue;
+				}
+
+				$content_actions[$key] = $value;
+			}
+		}
+
+		return $content_actions;
+	}
+
+	/**
+	 * build array of common navigation links
+	 * @return array
+	 */
+	protected function buildNavUrls() {
+		global $wgUploadNavigationUrl;
+
+		$out = $this->getOutput();
+		$request = $this->getRequest();
+
+		$nav_urls = [];
+		$nav_urls['mainpage'] = [ 'href' => self::makeMainPageUrl() ];
+		if ( $wgUploadNavigationUrl ) {
+			$nav_urls['upload'] = [ 'href' => $wgUploadNavigationUrl ];
+		} elseif ( UploadBase::isEnabled() && UploadBase::isAllowed( $this->getUser() ) === true ) {
+			$nav_urls['upload'] = [ 'href' => self::makeSpecialUrl( 'Upload' ) ];
+		} else {
+			$nav_urls['upload'] = false;
+		}
+		$nav_urls['specialpages'] = [ 'href' => self::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['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() || $this->getTitle()->isSpecialPage() ) ) {
+			$nav_urls['print'] = [
+				'text' => $this->msg( 'printableversion' )->text(),
+				'href' => $this->getTitle()->getLocalURL(
+					$request->appendQueryValue( 'printable', 'yes' ) )
+			];
+		}
+
+		if ( $out->isArticle() ) {
+			// Also add a "permalink" while we're at it
+			$revid = $this->getRevisionId();
+			if ( $revid ) {
+				$nav_urls['permalink'] = [
+					'text' => $this->msg( 'permalink' )->text(),
+					'href' => $this->getTitle()->getLocalURL( "oldid=$revid" )
+				];
+			}
+
+			// Avoid PHP 7.1 warning of passing $this by reference
+			$skinTemplate = $this;
+			// Use the copy of revision ID in case this undocumented, shady hook tries to mess with internals
+			Hooks::run( 'SkinTemplateBuildNavUrlsNav_urlsAfterPermalink',
+				[ &$skinTemplate, &$nav_urls, &$revid, &$revid ] );
+		}
+
+		if ( $out->isArticleRelated() ) {
+			$nav_urls['whatlinkshere'] = [
+				'href' => SpecialPage::getTitleFor( 'Whatlinkshere', $this->thispage )->getLocalURL()
+			];
+
+			$nav_urls['info'] = [
+				'text' => $this->msg( 'pageinfo-toolboxlink' )->text(),
+				'href' => $this->getTitle()->getLocalURL( "action=info" )
+			];
+
+			if ( $this->getTitle()->exists() || $this->getTitle()->inNamespace( NS_CATEGORY ) ) {
+				$nav_urls['recentchangeslinked'] = [
+					'href' => SpecialPage::getTitleFor( 'Recentchangeslinked', $this->thispage )->getLocalURL()
+				];
+			}
+		}
+
+		$user = $this->getRelevantUser();
+		if ( $user ) {
+			$rootUser = $user->getName();
+
+			$nav_urls['contributions'] = [
+				'text' => $this->msg( 'contributions', $rootUser )->text(),
+				'href' => self::makeSpecialUrlSubpage( 'Contributions', $rootUser ),
+				'tooltip-params' => [ $rootUser ],
+			];
+
+			$nav_urls['log'] = [
+				'href' => self::makeSpecialUrlSubpage( 'Log', $rootUser )
+			];
+
+			if ( $this->getUser()->isAllowed( 'block' ) ) {
+				$nav_urls['blockip'] = [
+					'text' => $this->msg( 'blockip', $rootUser )->text(),
+					'href' => self::makeSpecialUrlSubpage( 'Block', $rootUser )
+				];
+			}
+
+			if ( $this->showEmailUser( $user ) ) {
+				$nav_urls['emailuser'] = [
+					'text' => $this->msg( 'tool-link-emailuser', $rootUser )->text(),
+					'href' => self::makeSpecialUrlSubpage( 'Emailuser', $rootUser ),
+					'tooltip-params' => [ $rootUser ],
+				];
+			}
+
+			if ( !$user->isAnon() ) {
+				$sur = new UserrightsPage;
+				$sur->setContext( $this->getContext() );
+				$canChange = $sur->userCanChangeRights( $user );
+				$nav_urls['userrights'] = [
+					'text' => $this->msg(
+						$canChange ? 'tool-link-userrights' : 'tool-link-userrights-readonly',
+						$rootUser
+					)->text(),
+					'href' => self::makeSpecialUrlSubpage( 'Userrights', $rootUser )
+				];
+			}
+		}
+
+		return $nav_urls;
+	}
+
+	/**
+	 * Generate strings used for xml 'id' names
+	 * @return string
+	 */
+	protected function getNameSpaceKey() {
+		return $this->getTitle()->getNamespaceKey();
+	}
+}