includes/Output/OutputPage.php
<?php
/**
* Preparation for the final page rendering.
*
* 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
*/
namespace MediaWiki\Output;
use Article;
use Content;
use CSSJanus;
use Exception;
use ExtensionRegistry;
use File;
use HtmlArmor;
use InvalidArgumentException;
use JavaScriptContent;
use Language;
use LanguageCode;
use MediaWiki\Cache\LinkCache;
use MediaWiki\Config\Config;
use MediaWiki\Context\ContextSource;
use MediaWiki\Context\IContextSource;
use MediaWiki\Context\RequestContext;
use MediaWiki\HookContainer\ProtectedHookAccessorTrait;
use MediaWiki\Html\Html;
use MediaWiki\Linker\LinkTarget;
use MediaWiki\MainConfigNames;
use MediaWiki\MediaWikiServices;
use MediaWiki\Message\Message;
use MediaWiki\Page\PageRecord;
use MediaWiki\Page\PageReference;
use MediaWiki\Parser\Parser;
use MediaWiki\Parser\ParserOutput;
use MediaWiki\Parser\ParserOutputFlags;
use MediaWiki\Parser\Sanitizer;
use MediaWiki\Permissions\PermissionStatus;
use MediaWiki\Request\ContentSecurityPolicy;
use MediaWiki\Request\FauxRequest;
use MediaWiki\Request\WebRequest;
use MediaWiki\ResourceLoader as RL;
use MediaWiki\ResourceLoader\ResourceLoader;
use MediaWiki\Session\SessionManager;
use MediaWiki\SpecialPage\SpecialPage;
use MediaWiki\Title\Title;
use MediaWiki\Title\TitleValue;
use MediaWiki\Utils\MWTimestamp;
use MWDebug;
use OOUI\Element;
use OOUI\Theme;
use ParserOptions;
use RuntimeException;
use Skin;
use TextContent;
use Wikimedia\AtEase\AtEase;
use Wikimedia\Bcp47Code\Bcp47Code;
use Wikimedia\LightweightObjectStore\ExpirationAwareness;
use Wikimedia\Parsoid\Core\TOCData;
use Wikimedia\Rdbms\IResultWrapper;
use Wikimedia\RelPath;
use Wikimedia\WrappedString;
use Wikimedia\WrappedStringList;
/**
* This is one of the Core classes and should
* be read at least once by any new developers. Also documented at
* https://www.mediawiki.org/wiki/Manual:Architectural_modules/OutputPage
*
* This class is used to prepare the final rendering. A skin is then
* applied to the output parameters (links, javascript, html, categories ...).
*
* @todo FIXME: Another class handles sending the whole page to the client.
*
* Some comments comes from a pairing session between Zak Greant and Antoine Musso
* in November 2010.
*
* @todo document
*/
class OutputPage extends ContextSource {
use ProtectedHookAccessorTrait;
/** Output CSP policies as headers */
public const CSP_HEADERS = 'headers';
/** Output CSP policies as meta tags */
public const CSP_META = 'meta';
// Constants for getJSVars()
private const JS_VAR_EARLY = 1;
private const JS_VAR_LATE = 2;
// Core config vars that opt-in to JS_VAR_LATE.
// Extensions use the 'LateJSConfigVarNames' attribute instead.
private const CORE_LATE_JS_CONFIG_VAR_NAMES = [];
/** @var bool Whether setupOOUI() has been called */
private static $oouiSetupDone = false;
/** @var string[][] Should be private. Used with addMeta() which adds "<meta>" */
protected $mMetatags = [];
/** @var array */
protected $mLinktags = [];
/** @var string|false */
protected $mCanonicalUrl = false;
/**
* @var string The contents of <h1>
*/
private $mPageTitle = '';
/**
* @var string The displayed title of the page. Different from page title
* if overridden by display title magic word or hooks. Can contain safe
* HTML. Different from page title which may contain messages such as
* "Editing X" which is displayed in h1. This can be used for other places
* where the page name is referred on the page.
*/
private $displayTitle;
/** @var bool See OutputPage::couldBePublicCached. */
private $cacheIsFinal = false;
/**
* @var string Contains all of the "<body>" content. Should be private we
* got set/get accessors and the append() method.
*/
public $mBodytext = '';
/** @var string Stores contents of "<title>" tag */
private $mHTMLtitle = '';
/**
* @var bool Is the displayed content related to the source of the
* corresponding wiki article.
*/
private $mIsArticle = false;
/** @var bool Stores "article flag" toggle. */
private $mIsArticleRelated = true;
/** @var bool Is the content subject to copyright */
private $mHasCopyright = false;
/**
* @var bool We have to set isPrintable(). Some pages should
* never be printed (ex: redirections).
*/
private $mPrintable = false;
/**
* @var ?TOCData Table of Contents information from ParserOutput, or
* null if no TOCData was ever set.
*/
private $tocData;
/**
* @var array Contains the page subtitle. Special pages usually have some
* links here. Don't confuse with site subtitle added by skins.
*/
private $mSubtitle = [];
/** @var string */
public $mRedirect = '';
/** @var int */
protected $mStatusCode;
/**
* @var string Used for sending cache control.
* The whole caching system should probably be moved into its own class.
*/
protected $mLastModified = '';
/**
* @var string[][]
* @deprecated since 1.38; will be made private (T301020)
*/
protected $mCategoryLinks = [];
/**
* @var string[][]
* @deprecated since 1.38, will be made private (T301020)
*/
protected $mCategories = [
'hidden' => [],
'normal' => [],
];
/**
* @var string[]
* @deprecated since 1.38; will be made private (T301020)
*/
protected $mIndicators = [];
/**
* @var string[] Array of Interwiki Prefixed (non DB key) Titles (e.g. 'fr:Test page')
*/
private $mLanguageLinks = [];
/**
* Used for JavaScript (predates ResourceLoader)
* @todo We should split JS / CSS.
* mScripts content is inserted as is in "<head>" by Skin. This might
* contain either a link to a stylesheet or inline CSS.
*/
private $mScripts = '';
/** @var string Inline CSS styles. Use addInlineStyle() sparingly */
protected $mInlineStyles = '';
/**
* Additional <html> classes; This should be rarely modified; prefer mAdditionalBodyClasses.
* @var array
*/
protected $mAdditionalHtmlClasses = [];
/**
* @var string[] Array of elements in "<head>". Parser might add its own headers!
* @deprecated since 1.38; will be made private (T301020)
*/
protected $mHeadItems = [];
/** @var array Additional <body> classes; there are also <body> classes from other sources */
protected $mAdditionalBodyClasses = [];
/**
* @var array
* @deprecated since 1.38; will be made private (T301020)
*/
protected $mModules = [];
/**
* @var array
* @deprecated since 1.38; will be made private (T301020)
*/
protected $mModuleStyles = [];
/** @var ResourceLoader */
protected $mResourceLoader;
/** @var RL\ClientHtml */
private $rlClient;
/** @var RL\Context */
private $rlClientContext;
/** @var array */
private $rlExemptStyleModules;
/**
* @var array
* @deprecated since 1.38; will be made private (T301020)
*/
protected $mJsConfigVars = [];
/**
* @var array<int,array<string,int>>
* @deprecated since 1.38; will be made private (T301020)
*/
protected $mTemplateIds = [];
/** @var array */
protected $mImageTimeKeys = [];
/** @var string */
public $mRedirectCode = '';
protected $mFeedLinksAppendQuery = null;
/** @var array
* What level of 'untrustworthiness' is allowed in CSS/JS modules loaded on this page?
* @see RL\Module::$origin
* RL\Module::ORIGIN_ALL is assumed unless overridden;
*/
protected $mAllowedModules = [
RL\Module::TYPE_COMBINED => RL\Module::ORIGIN_ALL,
];
/** @var bool Whether output is disabled. If this is true, the 'output' method will do nothing. */
protected $mDoNothing = false;
// Parser related.
/**
* lazy initialised, use parserOptions()
* @var ParserOptions
*/
protected $mParserOptions = null;
/**
* Handles the Atom / RSS links.
* We probably only support Atom in 2011.
* @see $wgAdvertisedFeedTypes
*/
private $mFeedLinks = [];
/**
* @var bool Set to false to send no-cache headers, disabling
* client-side caching. (This variable should really be named
* in the opposite sense; see ::disableClientCache().)
* @deprecated since 1.38; will be made private (T301020)
*/
protected $mEnableClientCache = true;
/** @var bool Flag if output should only contain the body of the article. */
private $mArticleBodyOnly = false;
/**
* @var bool
* @deprecated since 1.38; will be made private (T301020)
*/
protected $mNewSectionLink = false;
/**
* @var bool
* @deprecated since 1.38; will be made private (T301020)
*/
protected $mHideNewSectionLink = false;
/**
* @var bool Comes from the parser. This was probably made to load CSS/JS
* only if we had "<gallery>". Used directly in CategoryPage.php.
* Looks like ResourceLoader can replace this.
* @deprecated since 1.38; will be made private (T301020)
*/
public $mNoGallery = false;
/** @var int Cache stuff. Looks like mEnableClientCache */
protected $mCdnMaxage = 0;
/** @var int Upper limit on mCdnMaxage */
protected $mCdnMaxageLimit = INF;
/**
* @var bool Controls if anti-clickjacking / frame-breaking headers will
* be sent. This should be done for pages where edit actions are possible.
* Setter: $this->setPreventClickjacking()
*/
protected $mPreventClickjacking = true;
/** @var int|null To include the variable {{REVISIONID}} */
private $mRevisionId = null;
/** @var bool|null */
private $mRevisionIsCurrent = null;
/** @var string */
private $mRevisionTimestamp = null;
/** @var array */
protected $mFileVersion = null;
/**
* @var array An array of stylesheet filenames (relative from skins path),
* with options for CSS media, IE conditions, and RTL/LTR direction.
* For internal use; add settings in the skin via $this->addStyle()
*
* Style again! This seems like a code duplication since we already have
* mStyles. This is what makes Open Source amazing.
*/
protected $styles = [];
private $mIndexPolicy = 'index';
private $mFollowPolicy = 'follow';
/** @var array */
private $mRobotsOptions = [ 'max-image-preview' => 'standard' ];
/**
* @var array Headers that cause the cache to vary. Key is header name,
* value should always be null. (Value was an array of options for
* the `Key` header, which was deprecated in 1.32 and removed in 1.34.)
*/
private $mVaryHeader = [
'Accept-Encoding' => null,
];
/**
* If the current page was reached through a redirect, $mRedirectedFrom contains the title
* of the redirect.
*
* @var PageReference
*/
private $mRedirectedFrom = null;
/**
* Additional key => value data
*/
private $mProperties = [];
/**
* @var string|null ResourceLoader target for load.php links. If null, will be omitted
*/
private $mTarget = null;
/**
* @var bool Whether parser output contains a table of contents
*/
private $mEnableTOC = false;
/**
* @var array<string,bool> Flags set in the ParserOutput
*/
private $mOutputFlags = [];
/**
* @var string|null The URL to send in a <link> element with rel=license
*/
private $copyrightUrl;
/**
* @var Language|null
*/
private $contentLang;
/** @var array Profiling data */
private $limitReportJSData = [];
/** @var array Map Title to Content */
private $contentOverrides = [];
/** @var callable[] */
private $contentOverrideCallbacks = [];
/**
* Link: header contents
*/
private $mLinkHeader = [];
/**
* @var ContentSecurityPolicy
*/
private $CSP;
private string $cspOutputMode = self::CSP_HEADERS;
/**
* @var array A cache of the names of the cookies that will influence the cache
*/
private static $cacheVaryCookies = null;
/**
* Constructor for OutputPage. This should not be called directly.
* Instead a new RequestContext should be created and it will implicitly create
* a OutputPage tied to that context.
* @param IContextSource $context
*/
public function __construct( IContextSource $context ) {
$this->setContext( $context );
$this->CSP = new ContentSecurityPolicy(
$context->getRequest()->response(),
$context->getConfig(),
$this->getHookContainer()
);
}
/**
* Redirect to $url rather than displaying the normal page
*
* @param string $url
* @param string|int $responsecode HTTP status code
*/
public function redirect( $url, $responsecode = '302' ) {
# Strip newlines as a paranoia check for header injection in PHP<5.1.2
$this->mRedirect = str_replace( "\n", '', $url );
$this->mRedirectCode = (string)$responsecode;
}
/**
* Get the URL to redirect to, or an empty string if not redirect URL set
*
* @return string
*/
public function getRedirect() {
return $this->mRedirect;
}
/**
* Set the copyright URL to send with the output.
* Empty string to omit, null to reset.
*
* @since 1.26
*
* @param string|null $url
*/
public function setCopyrightUrl( $url ) {
$this->copyrightUrl = $url;
}
/**
* Set the HTTP status code to send with the output.
*
* @param int $statusCode
*/
public function setStatusCode( $statusCode ) {
$this->mStatusCode = $statusCode;
}
/**
* Add a new "<meta>" tag
* To add an http-equiv meta tag, precede the name with "http:"
*
* @param string $name Name of the meta tag
* @param string $val Value of the meta tag
*/
public function addMeta( $name, $val ) {
$this->mMetatags[] = [ $name, $val ];
}
/**
* Returns the current <meta> tags
*
* @since 1.25
* @return array
*/
public function getMetaTags() {
return $this->mMetatags;
}
/**
* Add a new \<link\> tag to the page header.
*
* Note: use setCanonicalUrl() for rel=canonical.
*
* @param array $linkarr Associative array of attributes.
*/
public function addLink( array $linkarr ) {
$this->mLinktags[] = $linkarr;
}
/**
* Returns the current <link> tags
*
* @since 1.25
* @return array
*/
public function getLinkTags() {
return $this->mLinktags;
}
/**
* Set the URL to be used for the <link rel=canonical>. This should be used
* in preference to addLink(), to avoid duplicate link tags.
* @param string $url
*/
public function setCanonicalUrl( $url ) {
$this->mCanonicalUrl = $url;
}
/**
* Returns the URL to be used for the <link rel=canonical> if
* one is set.
*
* @since 1.25
* @return bool|string
*/
public function getCanonicalUrl() {
return $this->mCanonicalUrl;
}
/**
* Add raw HTML to the list of scripts (including \<script\> tag, etc.)
* Internal use only. Use OutputPage::addModules() or OutputPage::addJsConfigVars()
* if possible.
*
* @param string $script Raw HTML
* @param-taint $script exec_html
*/
public function addScript( $script ) {
$this->mScripts .= $script;
}
/**
* Add a JavaScript file to be loaded as `<script>` on this page.
*
* Internal use only. Use OutputPage::addModules() if possible.
*
* @param string $file URL to file (absolute path, protocol-relative, or full url)
* @param string|null $unused Previously used to change the cache-busting query parameter
*/
public function addScriptFile( $file, $unused = null ) {
$this->addScript( Html::linkedScript( $file ) );
}
/**
* Add a self-contained script tag with the given contents
* Internal use only. Use OutputPage::addModules() if possible.
*
* @param string $script JavaScript text, no script tags
* @param-taint $script exec_html
*/
public function addInlineScript( $script ) {
$this->mScripts .= Html::inlineScript( "\n$script\n" ) . "\n";
}
/**
* Filter an array of modules to remove insufficiently trustworthy members, and modules
* which are no longer registered (eg a page is cached before an extension is disabled)
* @param string[] $modules
* @param string|null $position Unused
* @param string $type
* @return string[]
*/
protected function filterModules( array $modules, $position = null,
$type = RL\Module::TYPE_COMBINED
) {
$resourceLoader = $this->getResourceLoader();
$filteredModules = [];
foreach ( $modules as $val ) {
$module = $resourceLoader->getModule( $val );
if ( $module instanceof RL\Module
&& $module->getOrigin() <= $this->getAllowedModules( $type )
) {
$filteredModules[] = $val;
}
}
return $filteredModules;
}
/**
* Get the list of modules to include on this page
*
* @param bool $filter Whether to filter out insufficiently trustworthy modules
* @param string|null $position Unused
* @param string $param
* @param string $type
* @return string[] Array of module names
*/
public function getModules( $filter = false, $position = null, $param = 'mModules',
$type = RL\Module::TYPE_COMBINED
) {
$modules = array_values( array_unique( $this->$param ) );
return $filter
? $this->filterModules( $modules, null, $type )
: $modules;
}
/**
* Load one or more ResourceLoader modules on this page.
*
* @param string|array $modules Module name (string) or array of module names
*/
public function addModules( $modules ) {
$this->mModules = array_merge( $this->mModules, (array)$modules );
}
/**
* Get the list of style-only modules to load on this page.
*
* @param bool $filter
* @param string|null $position Unused
* @return string[] Array of module names
*/
public function getModuleStyles( $filter = false, $position = null ) {
return $this->getModules( $filter, null, 'mModuleStyles',
RL\Module::TYPE_STYLES
);
}
/**
* Load the styles of one or more style-only ResourceLoader modules on this page.
*
* Module styles added through this function will be loaded as a stylesheet,
* using a standard `<link rel=stylesheet>` HTML tag, rather than as a combined
* Javascript and CSS package. Thus, they will even load when JavaScript is disabled.
*
* @param string|array $modules Module name (string) or array of module names
*/
public function addModuleStyles( $modules ) {
$this->mModuleStyles = array_merge( $this->mModuleStyles, (array)$modules );
}
/**
* @return null|string ResourceLoader target
*/
public function getTarget() {
return $this->mTarget;
}
/**
* Force the given Content object for the given page, for things like page preview.
* @see self::addContentOverrideCallback()
* @since 1.32
* @param LinkTarget|PageReference $target
* @param Content $content
*/
public function addContentOverride( $target, Content $content ) {
if ( !$this->contentOverrides ) {
// Register a callback for $this->contentOverrides on the first call
$this->addContentOverrideCallback( function ( $target ) {
$key = $target->getNamespace() . ':' . $target->getDBkey();
return $this->contentOverrides[$key] ?? null;
} );
}
$key = $target->getNamespace() . ':' . $target->getDBkey();
$this->contentOverrides[$key] = $content;
}
/**
* Add a callback for mapping from a Title to a Content object, for things
* like page preview.
* @see RL\Context::getContentOverrideCallback()
* @since 1.32
* @param callable $callback
*/
public function addContentOverrideCallback( callable $callback ) {
$this->contentOverrideCallbacks[] = $callback;
}
/**
* Add a class to the <html> element. This should rarely be used.
* Instead use OutputPage::addBodyClasses() if possible.
*
* @unstable Experimental since 1.35. Prefer OutputPage::addBodyClasses()
* @param string|string[] $classes One or more classes to add
*/
public function addHtmlClasses( $classes ) {
$this->mAdditionalHtmlClasses = array_merge( $this->mAdditionalHtmlClasses, (array)$classes );
}
/**
* Get an array of head items
*
* @return string[]
*/
public function getHeadItemsArray() {
return $this->mHeadItems;
}
/**
* Add or replace a head item to the output
*
* Whenever possible, use more specific options like ResourceLoader modules,
* OutputPage::addLink(), OutputPage::addMeta() and OutputPage::addFeedLink()
* Fallback options for those are: OutputPage::addStyle, OutputPage::addScript(),
* OutputPage::addInlineScript() and OutputPage::addInlineStyle()
* This would be your very LAST fallback.
*
* @param string $name Item name
* @param string $value Raw HTML
* @param-taint $value exec_html
*/
public function addHeadItem( $name, $value ) {
$this->mHeadItems[$name] = $value;
}
/**
* Add one or more head items to the output
*
* @since 1.28
* @param string|string[] $values Raw HTML
* @param-taint $values exec_html
*/
public function addHeadItems( $values ) {
$this->mHeadItems = array_merge( $this->mHeadItems, (array)$values );
}
/**
* Check if the header item $name is already set
*
* @param string $name Item name
* @return bool
*/
public function hasHeadItem( $name ) {
return isset( $this->mHeadItems[$name] );
}
/**
* Add a class to the <body> element
*
* @since 1.30
* @param string|string[] $classes One or more classes to add
*/
public function addBodyClasses( $classes ) {
$this->mAdditionalBodyClasses = array_merge( $this->mAdditionalBodyClasses, (array)$classes );
}
/**
* Set whether the output should only contain the body of the article,
* without any skin, sidebar, etc.
* Used e.g. when calling with "action=render".
*
* @param bool $only Whether to output only the body of the article
*/
public function setArticleBodyOnly( $only ) {
$this->mArticleBodyOnly = $only;
}
/**
* Return whether the output will contain only the body of the article
*
* @return bool
*/
public function getArticleBodyOnly() {
return $this->mArticleBodyOnly;
}
/**
* Set an additional output property
* @since 1.21
*
* @param string $name
* @param mixed $value
*/
public function setProperty( $name, $value ) {
$this->mProperties[$name] = $value;
}
/**
* Get an additional output property
* @since 1.21
*
* @param string $name
* @return mixed Property value or null if not found
*/
public function getProperty( $name ) {
return $this->mProperties[$name] ?? null;
}
/**
* checkLastModified tells the client to use the client-cached page if
* possible. If successful, the OutputPage is disabled so that
* any future call to OutputPage->output() have no effect.
*
* Side effect: sets mLastModified for Last-Modified header
*
* @param string $timestamp
*
* @return bool True if cache-ok headers was sent.
*/
public function checkLastModified( $timestamp ) {
if ( !$timestamp || $timestamp == '19700101000000' ) {
wfDebug( __METHOD__ . ": CACHE DISABLED, NO TIMESTAMP" );
return false;
}
$config = $this->getConfig();
if ( !$config->get( MainConfigNames::CachePages ) ) {
wfDebug( __METHOD__ . ": CACHE DISABLED" );
return false;
}
$timestamp = wfTimestamp( TS_MW, $timestamp );
$modifiedTimes = [
'page' => $timestamp,
'user' => $this->getUser()->getTouched(),
'epoch' => $config->get( MainConfigNames::CacheEpoch )
];
if ( $config->get( MainConfigNames::UseCdn ) ) {
$modifiedTimes['sepoch'] = wfTimestamp( TS_MW, $this->getCdnCacheEpoch(
time(),
$config->get( MainConfigNames::CdnMaxAge )
) );
}
$this->getHookRunner()->onOutputPageCheckLastModified( $modifiedTimes, $this );
$maxModified = max( $modifiedTimes );
$this->mLastModified = wfTimestamp( TS_RFC2822, $maxModified );
$clientHeader = $this->getRequest()->getHeader( 'If-Modified-Since' );
if ( $clientHeader === false ) {
wfDebug( __METHOD__ . ": client did not send If-Modified-Since header", 'private' );
return false;
}
# IE sends sizes after the date like this:
# Wed, 20 Aug 2003 06:51:19 GMT; length=5202
# this breaks strtotime().
$clientHeader = preg_replace( '/;.*$/', '', $clientHeader );
// E_STRICT system time warnings
AtEase::suppressWarnings();
$clientHeaderTime = strtotime( $clientHeader );
AtEase::restoreWarnings();
if ( !$clientHeaderTime ) {
wfDebug( __METHOD__
. ": unable to parse the client's If-Modified-Since header: $clientHeader" );
return false;
}
$clientHeaderTime = wfTimestamp( TS_MW, $clientHeaderTime );
# Make debug info
$info = '';
foreach ( $modifiedTimes as $name => $value ) {
if ( $info !== '' ) {
$info .= ', ';
}
$info .= "$name=" . wfTimestamp( TS_ISO_8601, $value );
}
wfDebug( __METHOD__ . ": client sent If-Modified-Since: " .
wfTimestamp( TS_ISO_8601, $clientHeaderTime ), 'private' );
wfDebug( __METHOD__ . ": effective Last-Modified: " .
wfTimestamp( TS_ISO_8601, $maxModified ), 'private' );
if ( $clientHeaderTime < $maxModified ) {
wfDebug( __METHOD__ . ": STALE, $info", 'private' );
return false;
}
# Not modified
# Give a 304 Not Modified response code and disable body output
wfDebug( __METHOD__ . ": NOT MODIFIED, $info", 'private' );
ini_set( 'zlib.output_compression', 0 );
$this->getRequest()->response()->statusHeader( 304 );
$this->sendCacheControl();
$this->disable();
// Don't output a compressed blob when using ob_gzhandler;
// it's technically against HTTP spec and seems to confuse
// Firefox when the response gets split over two packets.
wfResetOutputBuffers( false );
return true;
}
/**
* @param int $reqTime Time of request (eg. now)
* @param int $maxAge Cache TTL in seconds
* @return int Timestamp
*/
private function getCdnCacheEpoch( $reqTime, $maxAge ) {
// Ensure Last-Modified is never more than $wgCdnMaxAge in the past,
// because even if the wiki page content hasn't changed since, static
// resources may have changed (skin HTML, interface messages, urls, etc.)
// and must roll-over in a timely manner (T46570)
return $reqTime - $maxAge;
}
/**
* Override the last modified timestamp
*
* @param string $timestamp New timestamp, in a format readable by
* wfTimestamp()
*/
public function setLastModified( $timestamp ) {
$this->mLastModified = wfTimestamp( TS_RFC2822, $timestamp );
}
/**
* Set the robot policy for the page: <http://www.robotstxt.org/meta.html>
*
* @param string $policy The literal string to output as the contents of
* the meta tag. Will be parsed according to the spec and output in
* standardized form.
*/
public function setRobotPolicy( $policy ) {
$policy = Article::formatRobotPolicy( $policy );
if ( isset( $policy['index'] ) ) {
$this->setIndexPolicy( $policy['index'] );
}
if ( isset( $policy['follow'] ) ) {
$this->setFollowPolicy( $policy['follow'] );
}
}
/**
* Get the current robot policy for the page as a string in the form
* <index policy>,<follow policy>.
*
* @return string
*/
public function getRobotPolicy() {
return "{$this->mIndexPolicy},{$this->mFollowPolicy}";
}
/**
* Format an array of robots options as a string of directives.
*
* @return string The robots policy options.
*/
private function formatRobotsOptions(): string {
$options = $this->mRobotsOptions;
// Check if options array has any non-integer keys.
if ( count( array_filter( array_keys( $options ), 'is_string' ) ) > 0 ) {
// Robots meta tags can have directives that are single strings or
// have parameters that should be formatted like <directive>:<setting>.
// If the options keys are strings, format them accordingly.
// https://developers.google.com/search/docs/advanced/robots/robots_meta_tag
array_walk( $options, static function ( &$value, $key ) {
$value = is_string( $key ) ? "{$key}:{$value}" : "{$value}";
} );
}
return implode( ',', $options );
}
/**
* Set the robots policy with options for the page.
*
* @since 1.38
* @param array $options An array of key-value pairs or a string
* to populate the robots meta tag content attribute as a string.
*/
public function setRobotsOptions( array $options = [] ): void {
$this->mRobotsOptions = array_merge( $this->mRobotsOptions, $options );
}
/**
* Get the robots policy content attribute for the page
* as a string in the form <index policy>,<follow policy>,<options>.
*
* @return string
*/
private function getRobotsContent(): string {
$robotOptionString = $this->formatRobotsOptions();
$robotArgs = ( $this->mIndexPolicy === 'index' &&
$this->mFollowPolicy === 'follow' ) ?
[] :
[
$this->mIndexPolicy,
$this->mFollowPolicy,
];
if ( $robotOptionString ) {
$robotArgs[] = $robotOptionString;
}
return implode( ',', $robotArgs );
}
/**
* Set the index policy for the page, but leave the follow policy un-
* touched.
*
* @param string $policy Either 'index' or 'noindex'.
*/
public function setIndexPolicy( $policy ) {
$policy = trim( $policy );
if ( in_array( $policy, [ 'index', 'noindex' ] ) ) {
$this->mIndexPolicy = $policy;
}
}
/**
* Get the current index policy for the page as a string.
*
* @return string
*/
public function getIndexPolicy() {
return $this->mIndexPolicy;
}
/**
* Set the follow policy for the page, but leave the index policy un-
* touched.
*
* @param string $policy Either 'follow' or 'nofollow'.
*/
public function setFollowPolicy( $policy ) {
$policy = trim( $policy );
if ( in_array( $policy, [ 'follow', 'nofollow' ] ) ) {
$this->mFollowPolicy = $policy;
}
}
/**
* Get the current follow policy for the page as a string.
*
* @return string
*/
public function getFollowPolicy() {
return $this->mFollowPolicy;
}
/**
* "HTML title" means the contents of "<title>".
* It is stored as plain, unescaped text and will be run through htmlspecialchars in the skin file.
*
* @param string|Message $name
*/
public function setHTMLTitle( $name ) {
if ( $name instanceof Message ) {
$this->mHTMLtitle = $name->setContext( $this->getContext() )->text();
} else {
$this->mHTMLtitle = $name;
}
}
/**
* Return the "HTML title", i.e. the content of the "<title>" tag.
*
* @return string
*/
public function getHTMLTitle() {
return $this->mHTMLtitle;
}
/**
* Set $mRedirectedFrom, the page which redirected us to the current page.
*
* @param PageReference $t
*/
public function setRedirectedFrom( PageReference $t ) {
$this->mRedirectedFrom = $t;
}
/**
* "Page title" means the contents of \<h1\>. It is stored as a valid HTML
* fragment. This function allows good tags like \<sup\> in the \<h1\> tag,
* but not bad tags like \<script\>. This function automatically sets
* \<title\> to the same content as \<h1\> but with all tags removed. Bad
* tags that were escaped in \<h1\> will still be escaped in \<title\>, and
* good tags like \<i\> will be dropped entirely.
*
* @param string|Message $name The page title, either as HTML string or
* as a message which will be formatted with FORMAT_TEXT to yield HTML.
* Passing a Message is deprecated, since 1.41; please use
* ::setPageTitleMsg() for that case instead.
* @param-taint $name tainted
* Phan-taint-check gets very confused by $name being either a string or a Message
*/
public function setPageTitle( $name ) {
if ( $name instanceof Message ) {
// T343849: passing a Message is deprecated and a warning will
// eventually be emitted here.
$name = $name->setContext( $this->getContext() )->text();
}
$this->setPageTitleInternal( $name );
}
/**
* "Page title" means the contents of \<h1\>. This message takes a
* Message, which will be formatted with FORMAT_ESCAPED to yield
* HTML. Raw parameters to the message may contain some HTML
* tags; see ::setPageTitle() and Sanitizer::removeSomeTags() for
* details. This function automatically sets \<title\> to the
* same content as \<h1\> but with all tags removed. Bad tags from
* "raw" parameters that were escaped in \<h1\> will still be
* escaped in \<title\>, and good tags like \<i\> will be dropped
* entirely.
*
* @param Message $msg The page title, as a message which will be
* formatted with FORMAT_ESCAPED to yield HTML.
* @since 1.41
*/
public function setPageTitleMsg( Message $msg ): void {
$this->setPageTitleInternal(
$msg->setContext( $this->getContext() )->escaped()
);
}
private function setPageTitleInternal( string $name ): void {
# change "<script>foo&bar</script>" to "<script>foo&bar</script>"
# but leave "<i>foobar</i>" alone
$nameWithTags = Sanitizer::removeSomeTags( $name );
$this->mPageTitle = $nameWithTags;
# change "<i>foo&bar</i>" to "foo&bar"
$this->setHTMLTitle(
$this->msg( 'pagetitle' )->plaintextParams( Sanitizer::stripAllTags( $nameWithTags ) )
->inContentLanguage()
);
}
/**
* Return the "page title", i.e. the content of the \<h1\> tag.
*
* @return string
*/
public function getPageTitle() {
return $this->mPageTitle;
}
/**
* Same as page title but only contains name of the page, not any other text.
*
* @since 1.32
* @param string $html Page title text.
* @see OutputPage::setPageTitle
*/
public function setDisplayTitle( $html ) {
$this->displayTitle = $html;
}
/**
* Returns page display title.
*
* Performs some normalization, but this not as strict the magic word.
*
* @since 1.32
* @return string HTML
*/
public function getDisplayTitle() {
$html = $this->displayTitle;
if ( $html === null ) {
return htmlspecialchars( $this->getTitle()->getPrefixedText(), ENT_NOQUOTES );
}
return Sanitizer::removeSomeTags( $html );
}
/**
* Returns page display title without namespace prefix if possible.
*
* This method is unreliable and best avoided. (T314399)
*
* @since 1.32
* @return string HTML
*/
public function getUnprefixedDisplayTitle() {
$service = MediaWikiServices::getInstance();
$languageConverter = $service->getLanguageConverterFactory()
->getLanguageConverter( $service->getContentLanguage() );
$text = $this->getDisplayTitle();
// Create a regexp with matching groups as placeholders for the namespace, separator and main text
$pageTitleRegexp = "/^" . str_replace(
preg_quote( '(.+?)', '/' ),
'(.+?)',
preg_quote( Parser::formatPageTitle( '(.+?)', '(.+?)', '(.+?)' ), '/' )
) . "$/";
$matches = [];
if ( preg_match( $pageTitleRegexp, $text, $matches ) ) {
// The regexp above could be manipulated by malicious user input,
// sanitize the result just in case
return Sanitizer::removeSomeTags( $matches[3] );
}
$nsPrefix = $languageConverter->convertNamespace(
$this->getTitle()->getNamespace()
) . ':';
$prefix = preg_quote( $nsPrefix, '/' );
return preg_replace( "/^$prefix/i", '', $text );
}
/**
* Set the Title object to use
*
* @param PageReference $t
*/
public function setTitle( PageReference $t ) {
$t = Title::newFromPageReference( $t );
// @phan-suppress-next-next-line PhanUndeclaredMethod
// @fixme Not all implementations of IContextSource have this method!
$this->getContext()->setTitle( $t );
}
/**
* Replace the subtitle with $str
*
* @param string|Message $str New value of the subtitle. String should be safe HTML.
*/
public function setSubtitle( $str ) {
$this->clearSubtitle();
$this->addSubtitle( $str );
}
/**
* Add $str to the subtitle
*
* @param string|Message $str String or Message to add to the subtitle. String should be safe HTML.
* @param-taint $str exec_html
*/
public function addSubtitle( $str ) {
if ( $str instanceof Message ) {
$this->mSubtitle[] = $str->setContext( $this->getContext() )->parse();
} else {
$this->mSubtitle[] = $str;
}
}
/**
* Build message object for a subtitle containing a backlink to a page
*
* @since 1.25
* @param PageReference $page Title to link to
* @param array $query Array of additional parameters to include in the link
* @return Message
*/
public static function buildBacklinkSubtitle( PageReference $page, $query = [] ) {
if ( $page instanceof PageRecord || $page instanceof Title ) {
// Callers will typically have a PageRecord
if ( $page->isRedirect() ) {
$query['redirect'] = 'no';
}
} elseif ( $page->getNamespace() !== NS_SPECIAL ) {
// We don't know whether it's a redirect, so add the parameter, just to be sure.
$query['redirect'] = 'no';
}
$linkRenderer = MediaWikiServices::getInstance()->getLinkRenderer();
return wfMessage( 'backlinksubtitle' )
->rawParams( $linkRenderer->makeLink( $page, null, [], $query ) );
}
/**
* Add a subtitle containing a backlink to a page
*
* @param PageReference $title Title to link to
* @param array $query Array of additional parameters to include in the link
*/
public function addBacklinkSubtitle( PageReference $title, $query = [] ) {
$this->addSubtitle( self::buildBacklinkSubtitle( $title, $query ) );
}
/**
* Clear the subtitles
*/
public function clearSubtitle() {
$this->mSubtitle = [];
}
/**
* @return string
*/
public function getSubtitle() {
return implode( "<br />\n\t\t\t\t", $this->mSubtitle );
}
/**
* Set the page as printable, i.e. it'll be displayed with all
* print styles included
*/
public function setPrintable() {
$this->mPrintable = true;
}
/**
* Return whether the page is "printable"
*
* @return bool
*/
public function isPrintable() {
return $this->mPrintable;
}
/**
* Disable output completely, i.e. calling output() will have no effect
*/
public function disable() {
$this->mDoNothing = true;
}
/**
* Return whether the output will be completely disabled
*
* @return bool
*/
public function isDisabled() {
return $this->mDoNothing;
}
/**
* Show an "add new section" link?
*
* @return bool
*/
public function showNewSectionLink() {
return $this->mNewSectionLink;
}
/**
* Forcibly hide the new section link?
*
* @return bool
*/
public function forceHideNewSectionLink() {
return $this->mHideNewSectionLink;
}
/**
* Add or remove feed links in the page header
* This is mainly kept for backward compatibility, see OutputPage::addFeedLink()
* for the new version
* @see addFeedLink()
*
* @param bool $show True: add default feeds, false: remove all feeds
*/
public function setSyndicated( $show = true ) {
if ( $show ) {
$this->setFeedAppendQuery( false );
} else {
$this->mFeedLinks = [];
}
}
/**
* Return effective list of advertised feed types
* @see addFeedLink()
*
* @return string[] Array of feed type names ( 'rss', 'atom' )
*/
protected function getAdvertisedFeedTypes() {
if ( $this->getConfig()->get( MainConfigNames::Feed ) ) {
return $this->getConfig()->get( MainConfigNames::AdvertisedFeedTypes );
} else {
return [];
}
}
/**
* Add default feeds to the page header
* This is mainly kept for backward compatibility, see OutputPage::addFeedLink()
* for the new version
* @see addFeedLink()
*
* @param string|false $val Query to append to feed links or false to output
* default links
*/
public function setFeedAppendQuery( $val ) {
$this->mFeedLinks = [];
foreach ( $this->getAdvertisedFeedTypes() as $type ) {
$query = "feed=$type";
if ( is_string( $val ) ) {
$query .= '&' . $val;
}
$this->mFeedLinks[$type] = $this->getTitle()->getLocalURL( $query );
}
}
/**
* Add a feed link to the page header
*
* @param string $format Feed type, should be a key of $wgFeedClasses
* @param string $href URL
*/
public function addFeedLink( $format, $href ) {
if ( in_array( $format, $this->getAdvertisedFeedTypes() ) ) {
$this->mFeedLinks[$format] = $href;
}
}
/**
* Should we output feed links for this page?
* @return bool
*/
public function isSyndicated() {
return count( $this->mFeedLinks ) > 0;
}
/**
* Return URLs for each supported syndication format for this page.
* @return array Associating format keys with URLs
*/
public function getSyndicationLinks() {
return $this->mFeedLinks;
}
/**
* Will currently always return null
*
* @return null
*/
public function getFeedAppendQuery() {
return $this->mFeedLinksAppendQuery;
}
/**
* Set whether the displayed content is related to the source of the
* corresponding article on the wiki
* Setting true will cause the change "article related" toggle to true
*
* @param bool $newVal
*/
public function setArticleFlag( $newVal ) {
$this->mIsArticle = $newVal;
if ( $newVal ) {
$this->mIsArticleRelated = $newVal;
}
}
/**
* Return whether the content displayed page is related to the source of
* the corresponding article on the wiki
*
* @return bool
*/
public function isArticle() {
return $this->mIsArticle;
}
/**
* Set whether this page is related an article on the wiki
* Setting false will cause the change of "article flag" toggle to false
*
* @param bool $newVal
*/
public function setArticleRelated( $newVal ) {
$this->mIsArticleRelated = $newVal;
if ( !$newVal ) {
$this->mIsArticle = false;
}
}
/**
* Return whether this page is related an article on the wiki
*
* @return bool
*/
public function isArticleRelated() {
return $this->mIsArticleRelated;
}
/**
* Set whether the standard copyright should be shown for the current page.
*
* @param bool $hasCopyright
*/
public function setCopyright( $hasCopyright ) {
$this->mHasCopyright = $hasCopyright;
}
/**
* Return whether the standard copyright should be shown for the current page.
* By default, it is true for all articles but other pages
* can signal it by using setCopyright( true ).
*
* Used by SkinTemplate to decided whether to show the copyright.
*
* @return bool
*/
public function showsCopyright() {
return $this->isArticle() || $this->mHasCopyright;
}
/**
* Add new language links
*
* @param string[] $newLinkArray Array of interwiki-prefixed (non DB key) titles
* (e.g. 'fr:Test page')
*/
public function addLanguageLinks( array $newLinkArray ) {
$this->mLanguageLinks = array_merge( $this->mLanguageLinks, $newLinkArray );
}
/**
* Reset the language links and add new language links
*
* @param string[] $newLinkArray Array of interwiki-prefixed (non DB key) titles
* (e.g. 'fr:Test page')
*/
public function setLanguageLinks( array $newLinkArray ) {
$this->mLanguageLinks = $newLinkArray;
}
/**
* Get the list of language links
*
* @return string[] Array of interwiki-prefixed (non DB key) titles (e.g. 'fr:Test page')
*/
public function getLanguageLinks() {
return $this->mLanguageLinks;
}
/**
* Add an array of categories, with names in the keys
*
* @param array $categories Mapping category name => sort key
*/
public function addCategoryLinks( array $categories ) {
if ( !$categories ) {
return;
}
$res = $this->addCategoryLinksToLBAndGetResult( $categories );
# Set all the values to 'normal'.
$categories = array_fill_keys( array_keys( $categories ), 'normal' );
$pageData = [];
# Mark hidden categories
foreach ( $res as $row ) {
if ( isset( $row->pp_value ) ) {
$categories[$row->page_title] = 'hidden';
}
// Page exists, cache results
if ( isset( $row->page_id ) ) {
$pageData[$row->page_title] = $row;
}
}
# Add the remaining categories to the skin
if ( $this->getHookRunner()->onOutputPageMakeCategoryLinks(
$this, $categories, $this->mCategoryLinks )
) {
$services = MediaWikiServices::getInstance();
$linkRenderer = $services->getLinkRenderer();
$languageConverter = $services->getLanguageConverterFactory()
->getLanguageConverter( $services->getContentLanguage() );
foreach ( $categories as $category => $type ) {
// array keys will cast numeric category names to ints, so cast back to string
$category = (string)$category;
$origcategory = $category;
if ( array_key_exists( $category, $pageData ) ) {
$title = Title::newFromRow( $pageData[$category] );
} else {
$title = Title::makeTitleSafe( NS_CATEGORY, $category );
}
if ( !$title ) {
continue;
}
$languageConverter->findVariantLink( $category, $title, true );
if ( $category != $origcategory && array_key_exists( $category, $categories ) ) {
continue;
}
$text = $languageConverter->convertHtml( $title->getText() );
$this->mCategories[$type][] = $title->getText();
$this->mCategoryLinks[$type][] = $linkRenderer->makeLink( $title, new HtmlArmor( $text ) );
}
}
}
/**
* @param array $categories
* @return IResultWrapper
*/
protected function addCategoryLinksToLBAndGetResult( array $categories ) {
# Add the links to a LinkBatch
$arr = [ NS_CATEGORY => $categories ];
$linkBatchFactory = MediaWikiServices::getInstance()->getLinkBatchFactory();
$lb = $linkBatchFactory->newLinkBatch();
$lb->setArray( $arr );
# Fetch existence plus the hiddencat property
$dbr = MediaWikiServices::getInstance()->getConnectionProvider()->getReplicaDatabase();
$fields = array_merge(
LinkCache::getSelectFields(),
[ 'pp_value' ]
);
$res = $dbr->newSelectQueryBuilder()
->select( $fields )
->from( 'page' )
->leftJoin( 'page_props', null, [
'pp_propname' => 'hiddencat',
'pp_page = page_id',
] )
->where( $lb->constructSet( 'page', $dbr ) )
->caller( __METHOD__ )
->fetchResultSet();
# Add the results to the link cache
$linkCache = MediaWikiServices::getInstance()->getLinkCache();
$lb->addResultToCache( $linkCache, $res );
return $res;
}
/**
* Reset the category links (but not the category list) and add $categories
*
* @param array $categories Mapping category name => sort key
*/
public function setCategoryLinks( array $categories ) {
$this->mCategoryLinks = [];
$this->addCategoryLinks( $categories );
}
/**
* Get the list of category links, in a 2-D array with the following format:
* $arr[$type][] = $link, where $type is either "normal" or "hidden" (for
* hidden categories) and $link a HTML fragment with a link to the category
* page
*
* @return string[][]
* @return-taint none
*/
public function getCategoryLinks() {
return $this->mCategoryLinks;
}
/**
* Get the list of category names this page belongs to.
*
* @param string $type The type of categories which should be returned. Possible values:
* * all: all categories of all types
* * hidden: only the hidden categories
* * normal: all categories, except hidden categories
* @return string[]
*/
public function getCategories( $type = 'all' ) {
if ( $type === 'all' ) {
$allCategories = [];
foreach ( $this->mCategories as $categories ) {
$allCategories = array_merge( $allCategories, $categories );
}
return $allCategories;
}
if ( !isset( $this->mCategories[$type] ) ) {
throw new InvalidArgumentException( 'Invalid category type given: ' . $type );
}
return $this->mCategories[$type];
}
/**
* Add an array of indicators, with their identifiers as array
* keys and HTML contents as values.
*
* In case of duplicate keys, existing values are overwritten.
*
* @note External code which calls this method should ensure that
* any indicators sourced from parsed wikitext are wrapped with
* the appropriate class; see note in ::getIndicators().
*
* @param string[] $indicators
* @param-taint $indicators exec_html
* @since 1.25
*/
public function setIndicators( array $indicators ) {
$this->mIndicators = $indicators + $this->mIndicators;
// Keep ordered by key
ksort( $this->mIndicators );
}
/**
* Get the indicators associated with this page.
*
* The array will be internally ordered by item keys.
*
* @return string[] Keys: identifiers, values: HTML contents
* @since 1.25
*/
public function getIndicators(): array {
// Note that some -- but not all -- indicators will be wrapped
// with a class appropriate for user-generated wikitext content
// (usually .mw-parser-output). The exceptions would be an
// indicator added via ::addHelpLink() below, which adds content
// which don't come from the parser and is not user-generated;
// and any indicators added by extensions which may call
// OutputPage::setIndicators() directly. In the latter case the
// caller is responsible for wrapping any parser-generated
// indicators.
return $this->mIndicators;
}
/**
* Adds help link with an icon via page indicators.
* Link target can be overridden by a local message containing a wikilink:
* the message key is: lowercase action or special page name + '-helppage'.
* @param string $to Target MediaWiki.org page title or encoded URL.
* @param bool $overrideBaseUrl Whether $url is a full URL, to avoid MediaWiki.org.
* @since 1.25
*/
public function addHelpLink( $to, $overrideBaseUrl = false ) {
$this->addModuleStyles( 'mediawiki.helplink' );
$text = $this->msg( 'helppage-top-gethelp' )->escaped();
if ( $overrideBaseUrl ) {
$helpUrl = $to;
} else {
$toUrlencoded = wfUrlencode( str_replace( ' ', '_', $to ) );
$helpUrl = "https://www.mediawiki.org/wiki/Special:MyLanguage/$toUrlencoded";
}
$link = Html::rawElement(
'a',
[
'href' => $helpUrl,
'target' => '_blank',
'class' => 'mw-helplink',
],
$text
);
// See note in ::getIndicators() above -- unlike wikitext-generated
// indicators which come from ParserOutput, this indicator will not
// be wrapped.
$this->setIndicators( [ 'mw-helplink' => $link ] );
}
/**
* Do not allow scripts which can be modified by wiki users to load on this page;
* only allow scripts bundled with, or generated by, the software.
* Site-wide styles are controlled by a config setting, since they can be
* used to create a custom skin/theme, but not user-specific ones.
*
* @todo this should be given a more accurate name
*/
public function disallowUserJs() {
$this->reduceAllowedModules(
RL\Module::TYPE_SCRIPTS,
RL\Module::ORIGIN_CORE_INDIVIDUAL
);
// Site-wide styles are controlled by a config setting, see T73621
// for background on why. User styles are never allowed.
if ( $this->getConfig()->get( MainConfigNames::AllowSiteCSSOnRestrictedPages ) ) {
$styleOrigin = RL\Module::ORIGIN_USER_SITEWIDE;
} else {
$styleOrigin = RL\Module::ORIGIN_CORE_INDIVIDUAL;
}
$this->reduceAllowedModules(
RL\Module::TYPE_STYLES,
$styleOrigin
);
}
/**
* Show what level of JavaScript / CSS untrustworthiness is allowed on this page
* @see RL\Module::$origin
* @param string $type RL\Module TYPE_ constant
* @return int Module ORIGIN_ class constant
*/
public function getAllowedModules( $type ) {
if ( $type == RL\Module::TYPE_COMBINED ) {
return min( array_values( $this->mAllowedModules ) );
} else {
return $this->mAllowedModules[$type] ?? RL\Module::ORIGIN_ALL;
}
}
/**
* Limit the highest level of CSS/JS untrustworthiness allowed.
*
* If passed the same or a higher level than the current level of untrustworthiness set, the
* level will remain unchanged.
*
* @param string $type
* @param int $level RL\Module class constant
*/
public function reduceAllowedModules( $type, $level ) {
$this->mAllowedModules[$type] = min( $this->getAllowedModules( $type ), $level );
}
/**
* Prepend $text to the body HTML
*
* @param string $text HTML
* @param-taint $text exec_html
*/
public function prependHTML( $text ) {
$this->mBodytext = $text . $this->mBodytext;
}
/**
* Append $text to the body HTML
*
* @param string $text HTML
* @param-taint $text exec_html
*/
public function addHTML( $text ) {
$this->mBodytext .= $text;
}
/**
* Shortcut for adding an Html::element via addHTML.
*
* @since 1.19
*
* @param string $element
* @param array $attribs
* @param string $contents
*/
public function addElement( $element, array $attribs = [], $contents = '' ) {
$this->addHTML( Html::element( $element, $attribs, $contents ) );
}
/**
* Clear the body HTML
*/
public function clearHTML() {
$this->mBodytext = '';
}
/**
* Get the body HTML
*
* @return string HTML
*/
public function getHTML() {
return $this->mBodytext;
}
/**
* Get/set the ParserOptions object to use for wikitext parsing
*
* @return ParserOptions
*/
public function parserOptions() {
if ( !$this->mParserOptions ) {
if ( !$this->getUser()->isSafeToLoad() ) {
// Context user isn't unstubbable yet, so don't try to get a
// ParserOptions for it. And don't cache this ParserOptions
// either.
$po = ParserOptions::newFromAnon();
$po->setAllowUnsafeRawHtml( false );
return $po;
}
$this->mParserOptions = ParserOptions::newFromContext( $this->getContext() );
$this->mParserOptions->setAllowUnsafeRawHtml( false );
}
return $this->mParserOptions;
}
/**
* Set the revision ID which will be seen by the wiki text parser
* for things such as embedded {{REVISIONID}} variable use.
*
* @param int|null $revid A positive integer, or null
* @return mixed Previous value
*/
public function setRevisionId( $revid ) {
$val = $revid === null ? null : intval( $revid );
return wfSetVar( $this->mRevisionId, $val, true );
}
/**
* Get the displayed revision ID
*
* @return int|null
*/
public function getRevisionId() {
return $this->mRevisionId;
}
/**
* Set whether the revision displayed (as set in ::setRevisionId())
* is the latest revision of the page.
*
* @param bool $isCurrent
*/
public function setRevisionIsCurrent( bool $isCurrent ): void {
$this->mRevisionIsCurrent = $isCurrent;
}
/**
* Whether the revision displayed is the latest revision of the page
*
* @since 1.34
* @return bool
*/
public function isRevisionCurrent(): bool {
return $this->mRevisionId == 0 || (
$this->mRevisionIsCurrent ?? (
$this->mRevisionId == $this->getTitle()->getLatestRevID()
)
);
}
/**
* Set the timestamp of the revision which will be displayed. This is used
* to avoid a extra DB call in SkinComponentFooter::lastModified().
*
* @param string|null $timestamp
* @return mixed Previous value
*/
public function setRevisionTimestamp( $timestamp ) {
return wfSetVar( $this->mRevisionTimestamp, $timestamp, true );
}
/**
* Get the timestamp of displayed revision.
* This will be null if not filled by setRevisionTimestamp().
*
* @return string|null
*/
public function getRevisionTimestamp() {
return $this->mRevisionTimestamp;
}
/**
* Set the displayed file version
*
* @param File|null $file
* @return mixed Previous value
*/
public function setFileVersion( $file ) {
$val = null;
if ( $file instanceof File && $file->exists() ) {
$val = [ 'time' => $file->getTimestamp(), 'sha1' => $file->getSha1() ];
}
return wfSetVar( $this->mFileVersion, $val, true );
}
/**
* Get the displayed file version
*
* @return array|null ('time' => MW timestamp, 'sha1' => sha1)
*/
public function getFileVersion() {
return $this->mFileVersion;
}
/**
* Get the templates used on this page
*
* @return array<int,array<string,int>> (namespace => dbKey => revId)
* @since 1.18
*/
public function getTemplateIds() {
return $this->mTemplateIds;
}
/**
* Get the files used on this page
*
* @return array [ dbKey => [ 'time' => MW timestamp or null, 'sha1' => sha1 or '' ] ]
* @since 1.18
*/
public function getFileSearchOptions() {
return $this->mImageTimeKeys;
}
/**
* Convert wikitext *in the user interface language* to HTML and
* add it to the buffer. The result will not be
* language-converted, as user interface messages are already
* localized into a specific variant. Assumes that the current
* page title will be used if optional $title is not
* provided. Output will be tidy.
*
* @param string $text Wikitext in the user interface language
* @param bool $linestart Is this the start of a line? (Defaults to true)
* @param PageReference|null $title Optional title to use; default of `null`
* means use current page title.
* @since 1.32
*/
public function addWikiTextAsInterface(
$text, $linestart = true, PageReference $title = null
) {
$title ??= $this->getTitle();
if ( !$title ) {
throw new RuntimeException( 'Title is null' );
}
$this->addWikiTextTitleInternal( $text, $title, $linestart, /*interface*/true );
}
/**
* Convert wikitext *in the user interface language* to HTML and
* add it to the buffer with a `<div class="$wrapperClass">`
* wrapper. The result will not be language-converted, as user
* interface messages as already localized into a specific
* variant. The $text will be parsed in start-of-line context.
* Output will be tidy.
*
* @param string $wrapperClass The class attribute value for the <div>
* wrapper in the output HTML
* @param string $text Wikitext in the user interface language
* @since 1.32
*/
public function wrapWikiTextAsInterface(
$wrapperClass, $text
) {
$this->addWikiTextTitleInternal(
$text, $this->getTitle(),
/*linestart*/true, /*interface*/true,
$wrapperClass
);
}
/**
* Convert wikitext *in the page content language* to HTML and add
* it to the buffer. The result with be language-converted to the
* user's preferred variant. Assumes that the current page title
* will be used if optional $title is not provided. Output will be
* tidy.
*
* @param string $text Wikitext in the page content language
* @param bool $linestart Is this the start of a line? (Defaults to true)
* @param PageReference|null $title Optional title to use; default of `null`
* means use current page title.
* @since 1.32
*/
public function addWikiTextAsContent(
$text, $linestart = true, PageReference $title = null
) {
$title ??= $this->getTitle();
if ( !$title ) {
throw new RuntimeException( 'Title is null' );
}
$this->addWikiTextTitleInternal( $text, $title, $linestart, /*interface*/false );
}
/**
* Add wikitext with a custom Title object.
* Output is unwrapped.
*
* @param string $text Wikitext
* @param PageReference $title
* @param bool $linestart Is this the start of a line?@param
* @param bool $interface Whether it is an interface message
* (for example disables conversion)
* @param string|null $wrapperClass if not empty, wraps the output in
* a `<div class="$wrapperClass">`
*/
private function addWikiTextTitleInternal(
$text, PageReference $title, $linestart, $interface, $wrapperClass = null
) {
$parserOutput = $this->parseInternal(
$text, $title, $linestart, $interface
);
$this->addParserOutput( $parserOutput, [
'enableSectionEditLinks' => false,
'wrapperDivClass' => $wrapperClass ?? '',
] );
}
/**
* Adds Table of Contents data to OutputPage from ParserOutput
* @param TOCData $tocData
* @internal For use by Article.php
*/
public function setTOCData( TOCData $tocData ) {
$this->tocData = $tocData;
}
/**
* @internal For usage in Skin::getTOCData() only.
* @return ?TOCData Table of Contents data, or
* null if OutputPage::setTOCData() has not been called.
*/
public function getTOCData(): ?TOCData {
return $this->tocData;
}
/**
* @internal Will be replaced by direct access to
* ParserOutput::getOutputFlag()
* @param string $name A flag name from ParserOutputFlags
* @return bool
*/
public function getOutputFlag( string $name ): bool {
return isset( $this->mOutputFlags[$name] );
}
/**
* @internal For use by ViewAction/Article only
* @since 1.42
* @param Bcp47Code $lang
*/
public function setContentLangForJS( Bcp47Code $lang ): void {
$this->contentLang = MediaWikiServices::getInstance()->getLanguageFactory()
->getLanguage( $lang );
}
/**
* Which language getJSVars should use
*
* Use of this is strongly discouraged in favour of ParserOutput::getLanguage(),
* and should not be needed in most cases given that ParserOutput::getText()
* already takes care of 'lang' and 'dir' attributes.
*
* Consider whether RequestContext::getLanguage (e.g. OutputPage::getLanguage
* or Skin::getLanguage) or MediaWikiServices::getContentLanguage is more
* appropiate first for your use case.
*
* @since 1.42
* @return Language
*/
private function getContentLangForJS(): Language {
if ( !$this->contentLang ) {
// If this is not set, then we're likely not on in a request that renders page content
// (e.g. ViewAction or ApiParse), but rather a different Action or SpecialPage.
// In that case there isn't a main ParserOutput object to represent the page or output.
// But, the skin and frontend code mostly don't make this distinction, and so we still
// need to return something for mw.config.
//
// For historical reasons, the expectation is that:
// * on a SpecialPage, we return the language for the content area just like on a
// page view. SpecialPage content is localised, and so this is the user language.
// * on an Action about a WikiPage, we return the language that content would have
// been shown in, if this were a page view. This is generally the page language
// as stored in the database, except adapted to the current user (e.g. in case of
// translated pages or a language variant preference)
//
// This mess was centralised to here in 2023 (T341244).
$title = $this->getTitle();
if ( $title->isSpecialPage() ) {
// Special pages render in the interface language, based on request context.
// If the user's preference (or request parameter) specifies a variant,
// the content may have been converted to the user's language variant.
$pageLang = $this->getLanguage();
} else {
wfDebug( __METHOD__ . ' has to guess ParserOutput language' );
// Guess what Article::getParserOutput and ParserOptions::optionsHash() would decide
// on a page view:
//
// - Pages may have a custom page_lang set in the database,
// via Title::getPageLanguage/Title::getDbPageLanguage
//
// - Interface messages (NS_MEDIAWIKI) render based on their subpage,
// via Title::getPageLanguage/ContentHandler::getPageLanguage/MessageCache::figureMessage
//
// - Otherwise, pages are assumed to be in the wiki's default content language.
// via Title::getPageLanguage/ContentHandler::getPageLanguage/MediaWikiServices::getContentLanguage
$pageLang = $title->getPageLanguage();
}
if ( $title->getNamespace() !== NS_MEDIAWIKI ) {
$services = MediaWikiServices::getInstance();
$langConv = $services->getLanguageConverterFactory()->getLanguageConverter( $pageLang );
// NOTE: LanguageConverter::getPreferredVariant inspects global RequestContext.
// This usually returns $pageLang unchanged.
$variant = $langConv->getPreferredVariant();
if ( $pageLang->getCode() !== $variant ) {
$pageLang = $services->getLanguageFactory()->getLanguage( $variant );
}
}
$this->contentLang = $pageLang;
}
return $this->contentLang;
}
/**
* Add all metadata associated with a ParserOutput object, but without the actual HTML. This
* includes categories, language links, ResourceLoader modules, effects of certain magic words,
* and so on. It does *not* include section information.
*
* @since 1.24
* @param ParserOutput $parserOutput
*/
public function addParserOutputMetadata( ParserOutput $parserOutput ) {
// T301020 This should eventually use the standard "merge ParserOutput"
// function between $parserOutput and $this->metadata.
$this->mLanguageLinks =
array_merge( $this->mLanguageLinks, $parserOutput->getLanguageLinks() );
$this->addCategoryLinks( $parserOutput->getCategoryMap() );
// Parser-generated indicators get wrapped like other parser output.
$wrapClass = $parserOutput->getWrapperDivClass();
$result = [];
foreach ( $parserOutput->getIndicators() as $name => $html ) {
if ( $html !== '' && $wrapClass !== '' ) {
$html = Html::rawElement( 'div', [ 'class' => $wrapClass ], $html );
}
$result[$name] = $html;
}
$this->setIndicators( $result );
$tocData = $parserOutput->getTOCData();
// Do not override existing TOC data if the new one is empty (T307256#8817705)
// TODO: Invent a way to merge TOCs from multiple outputs (T327429)
if ( $tocData !== null && ( $this->tocData === null || count( $tocData->getSections() ) > 0 ) ) {
$this->setTOCData( $tocData );
}
// FIXME: Best practice is for OutputPage to be an accumulator, as
// addParserOutputMetadata() may be called multiple times, but the
// following lines overwrite any previous data. These should
// be migrated to an injection pattern. (T301020, T300979)
// (Note that OutputPage::getOutputFlag() also contains this
// information, with flags from each $parserOutput all OR'ed together.)
$this->mNewSectionLink = $parserOutput->getNewSection();
$this->mHideNewSectionLink = $parserOutput->getHideNewSection();
$this->mNoGallery = $parserOutput->getNoGallery();
if ( !$parserOutput->isCacheable() ) {
$this->disableClientCache();
}
$this->addHeadItems( $parserOutput->getHeadItems() );
$this->addModules( $parserOutput->getModules() );
$this->addModuleStyles( $parserOutput->getModuleStyles() );
$this->addJsConfigVars( $parserOutput->getJsConfigVars() );
$this->mPreventClickjacking = $this->mPreventClickjacking
|| $parserOutput->getPreventClickjacking();
$scriptSrcs = $parserOutput->getExtraCSPScriptSrcs();
foreach ( $scriptSrcs as $src ) {
$this->getCSP()->addScriptSrc( $src );
}
$defaultSrcs = $parserOutput->getExtraCSPDefaultSrcs();
foreach ( $defaultSrcs as $src ) {
$this->getCSP()->addDefaultSrc( $src );
}
$styleSrcs = $parserOutput->getExtraCSPStyleSrcs();
foreach ( $styleSrcs as $src ) {
$this->getCSP()->addStyleSrc( $src );
}
// If $wgImagePreconnect is true, and if the output contains images, give the user-agent
// a hint about a remote hosts from which images may be served. Launched in T123582.
if ( $this->getConfig()->get( MainConfigNames::ImagePreconnect ) && count( $parserOutput->getImages() ) ) {
$preconnect = [];
// Optimization: Instead of processing each image, assume that wikis either serve both
// foreign and local from the same remote hostname (e.g. public wikis at WMF), or that
// foreign images are common enough to be worth the preconnect (e.g. private wikis).
$repoGroup = MediaWikiServices::getInstance()->getRepoGroup();
$repoGroup->forEachForeignRepo( static function ( $repo ) use ( &$preconnect ) {
$preconnect[] = $repo->getZoneUrl( 'thumb' );
} );
// Consider both foreign and local repos. While LocalRepo by default uses a relative
// path on the same domain, wiki farms may configure it to use a dedicated hostname.
$preconnect[] = $repoGroup->getLocalRepo()->getZoneUrl( 'thumb' );
foreach ( $preconnect as $url ) {
$host = parse_url( $url, PHP_URL_HOST );
// It is expected that file URLs are often path-only, without hostname (T317329).
if ( $host ) {
$this->addLink( [ 'rel' => 'preconnect', 'href' => '//' . $host ] );
break;
}
}
}
// Template versioning...
foreach ( (array)$parserOutput->getTemplateIds() as $ns => $dbks ) {
if ( isset( $this->mTemplateIds[$ns] ) ) {
$this->mTemplateIds[$ns] = $dbks + $this->mTemplateIds[$ns];
} else {
$this->mTemplateIds[$ns] = $dbks;
}
}
// File versioning...
foreach ( (array)$parserOutput->getFileSearchOptions() as $dbk => $data ) {
$this->mImageTimeKeys[$dbk] = $data;
}
// Enable OOUI if requested via ParserOutput
if ( $parserOutput->getEnableOOUI() ) {
$this->enableOOUI();
}
// Include parser limit report
// FIXME: This should append, rather than overwrite, or else this
// data should be injected into the OutputPage like is done for the
// other page-level things (like OutputPage::setTOCData()).
if ( !$this->limitReportJSData ) {
$this->limitReportJSData = $parserOutput->getLimitReportJSData();
}
// Link flags are ignored for now, but may in the future be
// used to mark individual language links.
$linkFlags = [];
$this->getHookRunner()->onLanguageLinks( $this->getTitle(), $this->mLanguageLinks, $linkFlags );
$this->getHookRunner()->onOutputPageParserOutput( $this, $parserOutput );
// This check must be after 'OutputPageParserOutput' runs in addParserOutputMetadata
// so that extensions may modify ParserOutput to toggle TOC.
// This cannot be moved to addParserOutputText because that is not
// called by EditPage for Preview.
// ParserOutputFlags::SHOW_TOC is used to indicate whether the TOC
// should be shown (or hidden) in the output.
$this->mEnableTOC = $this->mEnableTOC ||
$parserOutput->getOutputFlag( ParserOutputFlags::SHOW_TOC );
// Uniform handling of all boolean flags: they are OR'ed together
// (See ParserOutput::collectMetadata())
$flags =
array_flip( $parserOutput->getAllFlags() ) +
array_flip( ParserOutputFlags::cases() );
foreach ( $flags as $name => $ignore ) {
if ( $parserOutput->getOutputFlag( $name ) ) {
$this->mOutputFlags[$name] = true;
}
}
}
private function getParserOutputText( ParserOutput $parserOutput, array $poOptions = [] ): string {
// Add default options from the skin
$skin = $this->getSkin();
$skinOptions = $skin->getOptions();
$poOptions += [
'skin' => $skin,
'injectTOC' => $skinOptions['toc'],
];
// Note: this path absolutely expects $parserOutput to be mutated by getText, see T353257
return $parserOutput->getText( $poOptions );
}
/**
* Add the HTML and enhancements for it (like ResourceLoader modules) associated with a
* ParserOutput object, without any other metadata.
*
* @since 1.24
* @param ParserOutput $parserOutput
* @param array $poOptions Options to ParserOutput::getText()
*/
public function addParserOutputContent( ParserOutput $parserOutput, $poOptions = [] ) {
$text = $this->getParserOutputText( $parserOutput, $poOptions );
$this->addParserOutputText( $text, $poOptions );
$this->addModules( $parserOutput->getModules() );
$this->addModuleStyles( $parserOutput->getModuleStyles() );
$this->addJsConfigVars( $parserOutput->getJsConfigVars() );
}
/**
* Add the HTML associated with a ParserOutput object, without any metadata.
*
* @internal For local use only
* @param string|ParserOutput $text
* @param array $poOptions Options to ParserOutput::getText()
*/
public function addParserOutputText( $text, $poOptions = [] ) {
if ( $text instanceof ParserOutput ) {
wfDeprecated( __METHOD__ . ' with ParserOutput as first arg', '1.42' );
$text = $this->getParserOutputText( $text, $poOptions );
}
$this->getHookRunner()->onOutputPageBeforeHTML( $this, $text );
$this->addHTML( $text );
}
/**
* Add everything from a ParserOutput object.
*
* @param ParserOutput $parserOutput
* @param array $poOptions Options to ParserOutput::getText()
*/
public function addParserOutput( ParserOutput $parserOutput, $poOptions = [] ) {
$text = $this->getParserOutputText( $parserOutput, $poOptions );
$this->addParserOutputMetadata( $parserOutput );
$this->addParserOutputText( $text, $poOptions );
}
/**
* Add the output of a QuickTemplate to the output buffer
*
* @param \QuickTemplate &$template
*/
public function addTemplate( &$template ) {
$this->addHTML( $template->getHTML() );
}
/**
* Parse wikitext *in the page content language* and return the HTML.
* The result will be language-converted to the user's preferred variant.
* Output will be tidy.
*
* @param string $text Wikitext in the page content language
* @param bool $linestart Is this the start of a line? (Defaults to true)
* @return string HTML
* @since 1.32
*/
public function parseAsContent( $text, $linestart = true ) {
return $this->parseInternal(
$text, $this->getTitle(), $linestart, /*interface*/false
)->getText( [
'allowTOC' => false,
'enableSectionEditLinks' => false,
'wrapperDivClass' => '',
'userLang' => $this->getContext()->getLanguage(),
] );
}
/**
* Parse wikitext *in the user interface language* and return the HTML.
* The result will not be language-converted, as user interface messages
* are already localized into a specific variant.
* Output will be tidy.
*
* @param string $text Wikitext in the user interface language
* @param bool $linestart Is this the start of a line? (Defaults to true)
* @return string HTML
* @since 1.32
*/
public function parseAsInterface( $text, $linestart = true ) {
return $this->parseInternal(
$text, $this->getTitle(), $linestart, /*interface*/true
)->getText( [
'allowTOC' => false,
'enableSectionEditLinks' => false,
'wrapperDivClass' => '',
'userLang' => $this->getContext()->getLanguage(),
] );
}
/**
* Parse wikitext *in the user interface language*, strip
* paragraph wrapper, and return the HTML.
* The result will not be language-converted, as user interface messages
* are already localized into a specific variant.
* Output will be tidy. Outer paragraph wrapper will only be stripped
* if the result is a single paragraph.
*
* @param string $text Wikitext in the user interface language
* @param bool $linestart Is this the start of a line? (Defaults to true)
* @return string HTML
* @since 1.32
*/
public function parseInlineAsInterface( $text, $linestart = true ) {
return Parser::stripOuterParagraph(
$this->parseAsInterface( $text, $linestart )
);
}
/**
* Parse wikitext and return the HTML (internal implementation helper)
*
* @param string $text
* @param PageReference $title The title to use
* @param bool $linestart Is this the start of a line?
* @param bool $interface Use interface language (instead of content language) while parsing
* language sensitive magic words like GRAMMAR and PLURAL. This also disables
* LanguageConverter.
* @return ParserOutput
*/
private function parseInternal( $text, $title, $linestart, $interface ) {
if ( $title === null ) {
throw new RuntimeException( 'Empty $mTitle in ' . __METHOD__ );
}
$popts = $this->parserOptions();
$oldInterface = $popts->setInterfaceMessage( (bool)$interface );
$parserOutput = MediaWikiServices::getInstance()->getParserFactory()->getInstance()
->parse(
$text, $title, $popts,
$linestart, true, $this->mRevisionId
);
$popts->setInterfaceMessage( $oldInterface );
return $parserOutput;
}
/**
* Set the value of the "s-maxage" part of the "Cache-control" HTTP header
*
* @param int $maxage Maximum cache time on the CDN, in seconds.
*/
public function setCdnMaxage( $maxage ) {
$this->mCdnMaxage = min( $maxage, $this->mCdnMaxageLimit );
}
/**
* Set the value of the "s-maxage" part of the "Cache-control" HTTP header to $maxage if that is
* lower than the current s-maxage. Either way, $maxage is now an upper limit on s-maxage, so
* that future calls to setCdnMaxage() will no longer be able to raise the s-maxage above
* $maxage.
*
* @param int $maxage Maximum cache time on the CDN, in seconds
* @since 1.27
*/
public function lowerCdnMaxage( $maxage ) {
$this->mCdnMaxageLimit = min( $maxage, $this->mCdnMaxageLimit );
$this->setCdnMaxage( $this->mCdnMaxage );
}
/**
* Get TTL in [$minTTL,$maxTTL] and pass it to lowerCdnMaxage()
*
* This sets and returns $minTTL if $mtime is false or null. Otherwise,
* the TTL is higher the older the $mtime timestamp is. Essentially, the
* TTL is 90% of the age of the object, subject to the min and max.
*
* @param string|int|float|bool|null $mtime Last-Modified timestamp
* @param int $minTTL Minimum TTL in seconds [default: 1 minute]
* @param int $maxTTL Maximum TTL in seconds [default: $wgCdnMaxAge]
* @since 1.28
*/
public function adaptCdnTTL( $mtime, $minTTL = 0, $maxTTL = 0 ) {
$minTTL = $minTTL ?: ExpirationAwareness::TTL_MINUTE;
$maxTTL = $maxTTL ?: $this->getConfig()->get( MainConfigNames::CdnMaxAge );
if ( $mtime === null || $mtime === false ) {
return; // entity does not exist
}
$age = MWTimestamp::time() - (int)wfTimestamp( TS_UNIX, $mtime );
$adaptiveTTL = max( 0.9 * $age, $minTTL );
$adaptiveTTL = min( $adaptiveTTL, $maxTTL );
$this->lowerCdnMaxage( (int)$adaptiveTTL );
}
/**
* Do not send nocache headers
*/
public function enableClientCache(): void {
$this->mEnableClientCache = true;
}
/**
* Force the page to send nocache headers
* @since 1.38
*/
public function disableClientCache(): void {
$this->mEnableClientCache = false;
}
/**
* Whether the output might become publicly cached.
*
* @since 1.34
* @return bool
*/
public function couldBePublicCached() {
if ( !$this->cacheIsFinal ) {
// - The entry point handles its own caching and/or doesn't use OutputPage.
// (such as load.php, or MediaWiki\Rest\EntryPoint).
//
// - Or, we haven't finished processing the main part of the request yet
// (e.g. Action::show, SpecialPage::execute), and the state may still
// change via enableClientCache().
return true;
}
// e.g. various error-type pages disable all client caching
return $this->mEnableClientCache;
}
/**
* Set the expectation that cache control will not change after this point.
*
* This should be called after the main processing logic has completed
* (e.g. Action::show or SpecialPage::execute), but may be called
* before Skin output has started (OutputPage::output).
*
* @since 1.34
*/
public function considerCacheSettingsFinal() {
$this->cacheIsFinal = true;
}
/**
* Get the list of cookie names that will influence the cache
*
* @return array
*/
public function getCacheVaryCookies() {
if ( self::$cacheVaryCookies === null ) {
$config = $this->getConfig();
self::$cacheVaryCookies = array_values( array_unique( array_merge(
SessionManager::singleton()->getVaryCookies(),
[
'forceHTTPS',
],
$config->get( MainConfigNames::CacheVaryCookies )
) ) );
$this->getHookRunner()->onGetCacheVaryCookies( $this, self::$cacheVaryCookies );
}
return self::$cacheVaryCookies;
}
/**
* Check if the request has a cache-varying cookie header
* If it does, it's very important that we don't allow public caching
*
* @return bool
*/
public function haveCacheVaryCookies() {
$request = $this->getRequest();
foreach ( $this->getCacheVaryCookies() as $cookieName ) {
if ( $request->getCookie( $cookieName, '', '' ) !== '' ) {
wfDebug( __METHOD__ . ": found $cookieName" );
return true;
}
}
wfDebug( __METHOD__ . ": no cache-varying cookies found" );
return false;
}
/**
* Add an HTTP header that will have an influence on the cache
*
* @param string $header Header name
*/
public function addVaryHeader( $header ) {
if ( !array_key_exists( $header, $this->mVaryHeader ) ) {
$this->mVaryHeader[$header] = null;
}
}
/**
* Return a Vary: header on which to vary caches. Based on the keys of $mVaryHeader,
* such as Accept-Encoding or Cookie
*
* @return string
*/
public function getVaryHeader() {
// If we vary on cookies, let's make sure it's always included here too.
if ( $this->getCacheVaryCookies() ) {
$this->addVaryHeader( 'Cookie' );
}
foreach ( SessionManager::singleton()->getVaryHeaders() as $header => $_ ) {
$this->addVaryHeader( $header );
}
return 'Vary: ' . implode( ', ', array_keys( $this->mVaryHeader ) );
}
/**
* Add an HTTP Link: header
*
* @param string $header Header value
*/
public function addLinkHeader( $header ) {
$this->mLinkHeader[] = $header;
}
/**
* Return a Link: header. Based on the values of $mLinkHeader.
*
* @return string|false
*/
public function getLinkHeader() {
if ( !$this->mLinkHeader ) {
return false;
}
return 'Link: ' . implode( ',', $this->mLinkHeader );
}
/**
* T23672: Add Accept-Language to Vary header if there's no 'variant' parameter in GET.
*
* For example:
* /w/index.php?title=Main_page will vary based on Accept-Language; but
* /w/index.php?title=Main_page&variant=zh-cn will not.
*/
private function addAcceptLanguage() {
$title = $this->getTitle();
if ( !$title instanceof Title ) {
return;
}
$languageConverter = MediaWikiServices::getInstance()->getLanguageConverterFactory()
->getLanguageConverter( $title->getPageLanguage() );
if ( !$this->getRequest()->getCheck( 'variant' ) && $languageConverter->hasVariants() ) {
$this->addVaryHeader( 'Accept-Language' );
}
}
/**
* Set the prevent-clickjacking flag.
*
* If true, will cause an X-Frame-Options header appropriate for
* edit pages to be sent. The header value is controlled by
* $wgEditPageFrameOptions. This is the default for special
* pages. If you display a CSRF-protected form on an ordinary view
* page, then you need to call this function.
*
* Setting this flag to false will turn off frame-breaking. This
* can be called from pages which do not contain any
* CSRF-protected HTML form.
*
* @param bool $enable If true, will cause an X-Frame-Options header
* appropriate for edit pages to be sent.
*
* @since 1.38
*/
public function setPreventClickjacking( bool $enable ) {
$this->mPreventClickjacking = $enable;
}
/**
* Get the prevent-clickjacking flag
*
* @since 1.24
* @return bool
*/
public function getPreventClickjacking() {
return $this->mPreventClickjacking;
}
/**
* Get the X-Frame-Options header value (without the name part), or false
* if there isn't one. This is used by Skin to determine whether to enable
* JavaScript frame-breaking, for clients that don't support X-Frame-Options.
*
* @return string|false
*/
public function getFrameOptions() {
$config = $this->getConfig();
if ( $config->get( MainConfigNames::BreakFrames ) ) {
return 'DENY';
} elseif ( $this->mPreventClickjacking && $config->get( MainConfigNames::EditPageFrameOptions ) ) {
return $config->get( MainConfigNames::EditPageFrameOptions );
}
return false;
}
private function getReportTo() {
$config = $this->getConfig();
$expiry = $config->get( MainConfigNames::ReportToExpiry );
if ( !$expiry ) {
return false;
}
$endpoints = $config->get( MainConfigNames::ReportToEndpoints );
if ( !$endpoints ) {
return false;
}
$output = [ 'max_age' => $expiry, 'endpoints' => [] ];
foreach ( $endpoints as $endpoint ) {
$output['endpoints'][] = [ 'url' => $endpoint ];
}
return json_encode( $output, JSON_UNESCAPED_SLASHES );
}
private function getFeaturePolicyReportOnly() {
$config = $this->getConfig();
$features = $config->get( MainConfigNames::FeaturePolicyReportOnly );
return implode( ';', $features );
}
/**
* Send cache control HTTP headers
*/
public function sendCacheControl() {
$response = $this->getRequest()->response();
$config = $this->getConfig();
$this->addVaryHeader( 'Cookie' );
$this->addAcceptLanguage();
# don't serve compressed data to clients who can't handle it
# maintain different caches for logged-in users and non-logged in ones
$response->header( $this->getVaryHeader() );
if ( $this->mEnableClientCache ) {
if ( !$config->get( MainConfigNames::UseCdn ) ) {
$privateReason = 'config';
} elseif ( $response->hasCookies() ) {
$privateReason = 'set-cookies';
// The client might use methods other than cookies to appear logged-in.
// E.g. HTTP headers, or query parameter tokens, OAuth, etc.
} elseif ( SessionManager::getGlobalSession()->isPersistent() ) {
$privateReason = 'session';
} elseif ( $this->isPrintable() ) {
$privateReason = 'printable';
} elseif ( $this->mCdnMaxage == 0 ) {
$privateReason = 'no-maxage';
} elseif ( $this->haveCacheVaryCookies() ) {
$privateReason = 'cache-vary-cookies';
} else {
$privateReason = false;
}
if ( $privateReason === false ) {
# We'll purge the proxy cache for anons explicitly, but require end user agents
# to revalidate against the proxy on each visit.
# IMPORTANT! The CDN needs to replace the Cache-Control header with
# Cache-Control: s-maxage=0, must-revalidate, max-age=0
wfDebug( __METHOD__ .
": local proxy caching; {$this->mLastModified} **", 'private' );
# start with a shorter timeout for initial testing
# header( "Cache-Control: s-maxage=2678400, must-revalidate, max-age=0" );
$response->header( "Cache-Control: " .
"s-maxage={$this->mCdnMaxage}, must-revalidate, max-age=0" );
} else {
# We do want clients to cache if they can, but they *must* check for updates
# on revisiting the page.
wfDebug( __METHOD__ . ": private caching ($privateReason); {$this->mLastModified} **", 'private' );
$response->header( 'Expires: ' . gmdate( 'D, d M Y H:i:s', 0 ) . ' GMT' );
$response->header( "Cache-Control: private, must-revalidate, max-age=0" );
}
if ( $this->mLastModified ) {
$response->header( "Last-Modified: {$this->mLastModified}" );
}
} else {
wfDebug( __METHOD__ . ": no caching **", 'private' );
# In general, the absence of a last modified header should be enough to prevent
# the client from using its cache. We send a few other things just to make sure.
$response->header( 'Expires: ' . gmdate( 'D, d M Y H:i:s', 0 ) . ' GMT' );
$response->header( 'Cache-Control: no-cache, no-store, max-age=0, must-revalidate' );
}
}
/**
* Transfer styles and JavaScript modules from skin.
*
* @param Skin $sk to load modules for
*/
public function loadSkinModules( $sk ) {
foreach ( $sk->getDefaultModules() as $group => $modules ) {
if ( $group === 'styles' ) {
foreach ( $modules as $moduleMembers ) {
$this->addModuleStyles( $moduleMembers );
}
} else {
$this->addModules( $modules );
}
}
}
/**
* Finally, all the text has been munged and accumulated into
* the object, let's actually output it:
*
* @param bool $return Set to true to get the result as a string rather than sending it
* @return string|null
*/
public function output( $return = false ) {
if ( $this->mDoNothing ) {
return $return ? '' : null;
}
$response = $this->getRequest()->response();
$config = $this->getConfig();
if ( $this->mRedirect != '' ) {
$services = MediaWikiServices::getInstance();
// Modern standards don't require redirect URLs to be absolute, but make it so just in case.
// Note that this doesn't actually guarantee an absolute URL: relative-path URLs are left intact.
$this->mRedirect = (string)$services->getUrlUtils()->expand( $this->mRedirect, PROTO_CURRENT );
$redirect = $this->mRedirect;
$code = $this->mRedirectCode;
$content = '';
if ( $this->getHookRunner()->onBeforePageRedirect( $this, $redirect, $code ) ) {
if ( $code == '301' || $code == '303' ) {
if ( !$config->get( MainConfigNames::DebugRedirects ) ) {
$response->statusHeader( (int)$code );
}
$this->mLastModified = wfTimestamp( TS_RFC2822 );
}
if ( $config->get( MainConfigNames::VaryOnXFP ) ) {
$this->addVaryHeader( 'X-Forwarded-Proto' );
}
$this->sendCacheControl();
$response->header( 'Content-Type: text/html; charset=UTF-8' );
if ( $config->get( MainConfigNames::DebugRedirects ) ) {
$url = htmlspecialchars( $redirect );
$content = "<!DOCTYPE html>\n<html>\n<head>\n"
. "<title>Redirect</title>\n</head>\n<body>\n"
. "<p>Location: <a href=\"$url\">$url</a></p>\n"
. "</body>\n</html>\n";
if ( !$return ) {
print $content;
}
} else {
$response->header( 'Location: ' . $redirect );
}
}
return $return ? $content : null;
} elseif ( $this->mStatusCode ) {
$response->statusHeader( $this->mStatusCode );
}
# Buffer output; final headers may depend on later processing
ob_start();
$response->header( 'Content-type: ' . $config->get( MainConfigNames::MimeType ) . '; charset=UTF-8' );
$response->header( 'Content-language: ' .
MediaWikiServices::getInstance()->getContentLanguage()->getHtmlCode() );
$linkHeader = $this->getLinkHeader();
if ( $linkHeader ) {
$response->header( $linkHeader );
}
// Prevent framing, if requested
$frameOptions = $this->getFrameOptions();
if ( $frameOptions ) {
$response->header( "X-Frame-Options: $frameOptions" );
}
// Get the Origin-Trial header values. This is used to enable Chrome Origin
// Trials: https://github.com/GoogleChrome/OriginTrials
$originTrials = $config->get( MainConfigNames::OriginTrials );
foreach ( $originTrials as $originTrial ) {
$response->header( "Origin-Trial: $originTrial", false );
}
$reportTo = $this->getReportTo();
if ( $reportTo ) {
$response->header( "Report-To: $reportTo" );
}
$featurePolicyReportOnly = $this->getFeaturePolicyReportOnly();
if ( $featurePolicyReportOnly ) {
$response->header( "Feature-Policy-Report-Only: $featurePolicyReportOnly" );
}
if ( $this->mArticleBodyOnly ) {
if ( $this->cspOutputMode === self::CSP_HEADERS ) {
$this->CSP->sendHeaders();
}
echo $this->mBodytext;
} else {
// Enable safe mode if requested (T152169)
if ( $this->getRequest()->getBool( 'safemode' ) ) {
$this->disallowUserJs();
}
$sk = $this->getSkin();
$this->loadSkinModules( $sk );
MWDebug::addModules( $this );
// Hook that allows last minute changes to the output page, e.g.
// adding of CSS or Javascript by extensions, adding CSP sources.
$this->getHookRunner()->onBeforePageDisplay( $this, $sk );
if ( $this->cspOutputMode === self::CSP_HEADERS ) {
$this->CSP->sendHeaders();
}
try {
$sk->outputPage();
} catch ( Exception $e ) {
ob_end_clean(); // bug T129657
throw $e;
}
}
try {
// This hook allows last minute changes to final overall output by modifying output buffer
$this->getHookRunner()->onAfterFinalPageOutput( $this );
} catch ( Exception $e ) {
ob_end_clean(); // bug T129657
throw $e;
}
$this->sendCacheControl();
if ( $return ) {
return ob_get_clean();
} else {
ob_end_flush();
return null;
}
}
/**
* Prepare this object to display an error page; disable caching and
* indexing, clear the current text and redirect, set the page's title
* and optionally a custom HTML title (content of the "<title>" tag).
*
* @param string|Message|null $pageTitle Will be passed directly to setPageTitle()
* @param string|Message|false $htmlTitle Will be passed directly to setHTMLTitle();
* optional, if not passed the "<title>" attribute will be
* based on $pageTitle
* @note Explicitly passing $pageTitle or $htmlTitle has been deprecated
* since 1.41; use ::setPageTitleMsg() and ::setHTMLTitle() instead.
*/
public function prepareErrorPage( $pageTitle = null, $htmlTitle = false ) {
if ( $pageTitle !== null || $htmlTitle !== false ) {
wfDeprecated( __METHOD__ . ' with explicit arguments', '1.41' );
if ( $pageTitle !== null ) {
$this->setPageTitle( $pageTitle );
}
if ( $htmlTitle !== false ) {
$this->setHTMLTitle( $htmlTitle );
}
}
$this->setRobotPolicy( 'noindex,nofollow' );
$this->setArticleRelated( false );
$this->disableClientCache();
$this->mRedirect = '';
$this->clearSubtitle();
$this->clearHTML();
}
/**
* Output a standard error page
*
* showErrorPage( 'titlemsg', 'pagetextmsg' );
* showErrorPage( 'titlemsg', 'pagetextmsg', [ 'param1', 'param2' ] );
* showErrorPage( 'titlemsg', $messageObject );
* showErrorPage( $titleMessageObject, $messageObject );
*
* @param string|Message $title Message key (string) for page title, or a Message object
* @param string|Message $msg Message key (string) for page text, or a Message object
* @param array $params Message parameters; ignored if $msg is a Message object
* @param PageReference|LinkTarget|string|null $returnto Page to show a return link to;
* defaults to the 'returnto' URL parameter
* @param string|null $returntoquery Query string for the return to link;
* defaults to the 'returntoquery' URL parameter
*/
public function showErrorPage(
$title, $msg, $params = [], $returnto = null, $returntoquery = null
) {
if ( !$title instanceof Message ) {
$title = $this->msg( $title );
}
$this->prepareErrorPage();
$this->setPageTitleMsg( $title );
if ( $msg instanceof Message ) {
if ( $params !== [] ) {
trigger_error( 'Argument ignored: $params. The message parameters argument '
. 'is discarded when the $msg argument is a Message object instead of '
. 'a string.', E_USER_NOTICE );
}
$this->addHTML( $msg->parseAsBlock() );
} else {
$this->addWikiMsgArray( $msg, $params );
}
$this->returnToMain( null, $returnto, $returntoquery );
}
/**
* Output a standard permission error page
*
* @param array $errors Error message keys or [key, param...] arrays
* @param string|null $action Action that was denied or null if unknown
*/
public function showPermissionsErrorPage( array $errors, $action = null ) {
$services = MediaWikiServices::getInstance();
$groupPermissionsLookup = $services->getGroupPermissionsLookup();
foreach ( $errors as $key => $error ) {
$errors[$key] = (array)$error;
}
// For some actions (read, edit, create and upload), display a "login to do this action"
// error if all of the following conditions are met:
// 1. the user is not logged in as a named user, and so cannot be added to groups
// 2. the only error is insufficient permissions (i.e. no block or something else)
// 3. the error can be avoided simply by logging in
if ( in_array( $action, [ 'read', 'edit', 'createpage', 'createtalk', 'upload' ] )
&& !$this->getUser()->isNamed() && count( $errors ) == 1 && isset( $errors[0][0] )
&& ( $errors[0][0] == 'badaccess-groups' || $errors[0][0] == 'badaccess-group0' )
&& ( $groupPermissionsLookup->groupHasPermission( 'user', $action )
|| $groupPermissionsLookup->groupHasPermission( 'autoconfirmed', $action ) )
) {
$displayReturnto = null;
# 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.
$request = $this->getRequest();
$returnto = Title::newFromText( $request->getText( 'title' ) );
if ( $action == 'edit' ) {
$msg = 'whitelistedittext';
$displayReturnto = $returnto;
} elseif ( $action == 'createpage' || $action == 'createtalk' ) {
$msg = 'nocreatetext';
} elseif ( $action == 'upload' ) {
$msg = 'uploadnologintext';
} else { # Read
$msg = 'loginreqpagetext';
$displayReturnto = Title::newMainPage();
}
$query = [];
if ( $returnto ) {
$query['returnto'] = $returnto->getPrefixedText();
if ( !$request->wasPosted() ) {
$returntoquery = $request->getValues();
unset( $returntoquery['title'] );
unset( $returntoquery['returnto'] );
unset( $returntoquery['returntoquery'] );
$query['returntoquery'] = wfArrayToCgi( $returntoquery );
}
}
$title = SpecialPage::getTitleFor( 'Userlogin' );
$linkRenderer = $services->getLinkRenderer();
$loginUrl = $title->getLinkURL( $query, false, PROTO_RELATIVE );
$loginLink = $linkRenderer->makeKnownLink(
$title,
$this->msg( 'loginreqlink' )->text(),
[],
$query
);
$this->prepareErrorPage();
$this->setPageTitleMsg( $this->msg( 'loginreqtitle' ) );
$this->addHTML( $this->msg( $msg )->rawParams( $loginLink )->params( $loginUrl )->parse() );
# Don't return to a page the user can't read otherwise
# we'll end up in a pointless loop
if ( $displayReturnto && $this->getAuthority()->probablyCan( 'read', $displayReturnto ) ) {
$this->returnToMain( null, $displayReturnto );
}
} else {
$this->prepareErrorPage();
$this->setPageTitleMsg( $this->msg( 'permissionserrors' ) );
$this->addWikiTextAsInterface( $this->formatPermissionsErrorMessage( $errors, $action ) );
}
}
/**
* Display an error page indicating that a given version of MediaWiki is
* required to use it
*
* @param mixed $version The version of MediaWiki needed to use the page
*/
public function versionRequired( $version ) {
$this->prepareErrorPage();
$this->setPageTitleMsg(
$this->msg( 'versionrequired' )->plaintextParams( $version )
);
$this->addWikiMsg( 'versionrequiredtext', $version );
$this->returnToMain();
}
/**
* Format permission $status obtained from Authority for display.
*
* @param PermissionStatus $status
* @param string|null $action that was denied or null if unknown
* @return string
*/
public function formatPermissionStatus( PermissionStatus $status, string $action = null ): string {
if ( $status->isGood() ) {
return '';
}
return $this->formatPermissionsErrorMessage( $status->toLegacyErrorArray(), $action );
}
/**
* Format a list of error messages
*
* @deprecated since 1.36. Use ::formatPermissionStatus instead
* @param array $errors Array of arrays returned by PermissionManager::getPermissionErrors
* @phan-param non-empty-array[] $errors
* @param string|null $action Action that was denied or null if unknown
* @return string The wikitext error-messages, formatted into a list.
*/
public function formatPermissionsErrorMessage( array $errors, $action = null ) {
if ( $action == null ) {
$text = $this->msg( 'permissionserrorstext', count( $errors ) )->plain() . "\n\n";
} else {
$action_desc = $this->msg( "action-$action" )->plain();
$text = $this->msg(
'permissionserrorstext-withaction',
count( $errors ),
$action_desc
)->plain() . "\n\n";
}
if ( count( $errors ) > 1 ) {
$text .= '<ul class="permissions-errors">' . "\n";
foreach ( $errors as $error ) {
$text .= '<li>';
$text .= $this->msg( ...$error )->plain();
$text .= "</li>\n";
}
$text .= '</ul>';
} else {
$text .= "<div class=\"permissions-errors\">\n" .
// @phan-suppress-next-line PhanParamTooFewUnpack Elements of $errors already annotated as non-empty
$this->msg( ...reset( $errors ) )->plain() .
"\n</div>";
}
return $text;
}
/**
* Show a warning about replica DB lag
*
* If the lag is higher than $wgDatabaseReplicaLagCritical seconds,
* then the warning is a bit more obvious. If the lag is
* lower than $wgDatabaseReplicaLagWarning, then no warning is shown.
*
* @param int $lag Replica lag
*/
public function showLagWarning( $lag ) {
$config = $this->getConfig();
if ( $lag >= $config->get( MainConfigNames::DatabaseReplicaLagWarning ) ) {
$lag = floor( $lag ); // floor to avoid nano seconds to display
$message = $lag < $config->get( MainConfigNames::DatabaseReplicaLagCritical )
? 'lag-warn-normal'
: 'lag-warn-high';
// For grep: mw-lag-warn-normal, mw-lag-warn-high
$wrap = Html::rawElement( 'div', [ 'class' => "mw-{$message}" ], "\n$1\n" );
$this->wrapWikiMsg( "$wrap\n", [ $message, $this->getLanguage()->formatNum( $lag ) ] );
}
}
/**
* Output an error page
*
* @note FatalError exception class provides an alternative.
* @param string $message Error to output. Must be escaped for HTML.
*/
public function showFatalError( $message ) {
$this->prepareErrorPage();
$this->setPageTitleMsg( $this->msg( 'internalerror' ) );
$this->addHTML( $message );
}
/**
* Add a "return to" link pointing to a specified title
*
* @param LinkTarget $title Title to link
* @param array $query Query string parameters
* @param string|null $text Text of the link (input is not escaped)
* @param array $options Options array to pass to Linker
*/
public function addReturnTo( $title, array $query = [], $text = null, $options = [] ) {
$linkRenderer = MediaWikiServices::getInstance()
->getLinkRendererFactory()->createFromLegacyOptions( $options );
$link = $this->msg( 'returnto' )->rawParams(
$linkRenderer->makeLink( $title, $text, [], $query ) )->escaped();
$this->addHTML( "<p id=\"mw-returnto\">{$link}</p>\n" );
}
/**
* Add a "return to" link pointing to a specified title,
* or the title indicated in the request, or else the main page
*
* @param mixed|null $unused
* @param PageReference|LinkTarget|string|null $returnto Page to return to
* @param string|null $returntoquery Query string for the return to link
*/
public function returnToMain( $unused = null, $returnto = null, $returntoquery = null ) {
$returnto ??= $this->getRequest()->getText( 'returnto' );
$returntoquery ??= $this->getRequest()->getText( 'returntoquery' );
if ( $returnto === '' ) {
$returnto = Title::newMainPage();
}
if ( is_object( $returnto ) ) {
$linkTarget = TitleValue::castPageToLinkTarget( $returnto );
} else {
$linkTarget = Title::newFromText( $returnto );
}
// We don't want people to return to external interwiki. That
// might potentially be used as part of a phishing scheme
if ( !is_object( $linkTarget ) || $linkTarget->isExternal() ) {
$linkTarget = Title::newMainPage();
}
$this->addReturnTo( $linkTarget, wfCgiToArray( $returntoquery ) );
}
/**
* Output a standard "wait for takeover" warning
*
* This is useful for extensions which are hooking an action and
* suppressing its normal output so it can be taken over with JS.
*
* showPendingTakeover( 'url', 'pagetextmsg' );
* showPendingTakeover( 'url', 'pagetextmsg', [ 'param1', 'param2' ] );
* showPendingTakeover( 'url', $messageObject );
*
* @param string $fallbackUrl URL to redirect to if the user doesn't have JavaScript
* or ResourceLoader available; this should ideally be to a page that provides similar
* functionality without requiring JavaScript
* @param string|Message $msg Message key (string) for page text, or a Message object
* @param mixed ...$params Message parameters; ignored if $msg is a Message object
*/
public function showPendingTakeover(
$fallbackUrl, $msg, ...$params
) {
if ( $msg instanceof Message ) {
if ( $params !== [] ) {
trigger_error( 'Argument ignored: $params. The message parameters argument '
. 'is discarded when the $msg argument is a Message object instead of '
. 'a string.', E_USER_NOTICE );
}
$this->addHTML( $msg->parseAsBlock() );
} else {
$this->addHTML( $this->msg( $msg, ...$params )->parseAsBlock() );
}
// Redirect if the user has no JS (<noscript>)
$escapedUrl = htmlspecialchars( $fallbackUrl );
$this->addHeadItem(
'mw-noscript-fallback',
// https://html.spec.whatwg.org/#attr-meta-http-equiv-refresh
// means that if $fallbackUrl contains unencoded quotation marks
// then this will behave confusingly, but shouldn't break the page
"<noscript><meta http-equiv=\"refresh\" content=\"0; url=$escapedUrl\"></noscript>"
);
// Redirect if the user has no ResourceLoader
$this->addScript( Html::inlineScript(
"(window.NORLQ=window.NORLQ||[]).push(" .
"function(){" .
"location.href=" . json_encode( $fallbackUrl ) . ";" .
"}" .
");"
) );
}
private function getRlClientContext() {
if ( !$this->rlClientContext ) {
$query = ResourceLoader::makeLoaderQuery(
[], // modules; not relevant
$this->getLanguage()->getCode(),
$this->getSkin()->getSkinName(),
$this->getUser()->isRegistered() ? $this->getUser()->getName() : null,
null, // version; not relevant
ResourceLoader::inDebugMode(),
null, // only; not relevant
$this->isPrintable()
);
$this->rlClientContext = new RL\Context(
$this->getResourceLoader(),
new FauxRequest( $query )
);
if ( $this->contentOverrideCallbacks ) {
$this->rlClientContext = new RL\DerivativeContext( $this->rlClientContext );
$this->rlClientContext->setContentOverrideCallback( function ( $title ) {
foreach ( $this->contentOverrideCallbacks as $callback ) {
$content = $callback( $title );
if ( $content !== null ) {
$text = ( $content instanceof TextContent ) ? $content->getText() : '';
if ( strpos( $text, '</script>' ) !== false ) {
// Proactively replace this so that we can display a message
// to the user, instead of letting it go to Html::inlineScript(),
// where it would be considered a server-side issue.
$content = new JavaScriptContent(
Html::encodeJsCall( 'mw.log.error', [
"Cannot preview $title due to script-closing tag."
] )
);
}
return $content;
}
}
return null;
} );
}
}
return $this->rlClientContext;
}
/**
* Call this to freeze the module queue and JS config and create a formatter.
*
* Depending on the Skin, this may get lazy-initialised in either headElement() or
* getBottomScripts(). See SkinTemplate::prepareQuickTemplate(). Calling this too early may
* cause unexpected side-effects since disallowUserJs() may be called at any time to change
* the module filters retroactively. Skins and extension hooks may also add modules until very
* late in the request lifecycle.
*
* @return RL\ClientHtml
*/
public function getRlClient() {
if ( !$this->rlClient ) {
$context = $this->getRlClientContext();
$rl = $this->getResourceLoader();
$this->addModules( [
'user',
'user.options',
] );
$this->addModuleStyles( [
'site.styles',
'noscript',
'user.styles',
] );
// Prepare exempt modules for buildExemptModules()
$exemptGroups = [
RL\Module::GROUP_SITE => [],
RL\Module::GROUP_NOSCRIPT => [],
RL\Module::GROUP_PRIVATE => [],
RL\Module::GROUP_USER => []
];
$exemptStates = [];
$moduleStyles = $this->getModuleStyles( /*filter*/ true );
// Preload getTitleInfo for isKnownEmpty calls below and in RL\ClientHtml
// Separate user-specific batch for improved cache-hit ratio.
$userBatch = [ 'user.styles', 'user' ];
$siteBatch = array_diff( $moduleStyles, $userBatch );
RL\WikiModule::preloadTitleInfo( $context, $siteBatch );
RL\WikiModule::preloadTitleInfo( $context, $userBatch );
// Filter out modules handled by buildExemptModules()
$moduleStyles = array_filter( $moduleStyles,
static function ( $name ) use ( $rl, $context, &$exemptGroups, &$exemptStates ) {
$module = $rl->getModule( $name );
if ( $module ) {
$group = $module->getGroup();
if ( $group !== null && isset( $exemptGroups[$group] ) ) {
// The `noscript` module is excluded from the client
// side registry, no need to set its state either.
// But we still output it. See T291735
if ( $group !== RL\Module::GROUP_NOSCRIPT ) {
$exemptStates[$name] = 'ready';
}
if ( !$module->isKnownEmpty( $context ) ) {
// E.g. Don't output empty <styles>
$exemptGroups[$group][] = $name;
}
return false;
}
}
return true;
}
);
$this->rlExemptStyleModules = $exemptGroups;
$config = $this->getConfig();
// Client preferences are controlled by the skin and specific to unregistered
// users. See mw.user.clientPrefs for details on how this works and how to
// handle registered users.
$clientPrefEnabled = (
$this->getSkin()->getOptions()['clientPrefEnabled'] &&
!$this->getUser()->isNamed()
);
$clientPrefCookiePrefix = $config->get( MainConfigNames::CookiePrefix );
$rlClient = new RL\ClientHtml( $context, [
'target' => $this->getTarget(),
// When 'safemode', disallowUserJs(), or reduceAllowedModules() is used
// to only restrict modules to ORIGIN_CORE (ie. disallow ORIGIN_USER), the list of
// modules enqueued for loading on this page is filtered to just those.
// However, to make sure we also apply the restriction to dynamic dependencies and
// lazy-loaded modules at run-time on the client-side, pass 'safemode' down to the
// StartupModule so that the client-side registry will not contain any restricted
// modules either. (T152169, T185303)
'safemode' => ( $this->getAllowedModules( RL\Module::TYPE_COMBINED )
<= RL\Module::ORIGIN_CORE_INDIVIDUAL
) ? '1' : null,
'clientPrefEnabled' => $clientPrefEnabled,
'clientPrefCookiePrefix' => $clientPrefCookiePrefix,
] );
$rlClient->setConfig( $this->getJSVars( self::JS_VAR_EARLY ) );
$rlClient->setModules( $this->getModules( /*filter*/ true ) );
$rlClient->setModuleStyles( $moduleStyles );
$rlClient->setExemptStates( $exemptStates );
$this->rlClient = $rlClient;
}
return $this->rlClient;
}
/**
* @param Skin $sk The given Skin
* @param bool $includeStyle Unused
* @return string The doctype, opening "<html>", and head element.
*/
public function headElement( Skin $sk, $includeStyle = true ) {
$config = $this->getConfig();
$userdir = $this->getLanguage()->getDir();
$services = MediaWikiServices::getInstance();
$sitedir = $services->getContentLanguage()->getDir();
$pieces = [];
$htmlAttribs = Sanitizer::mergeAttributes( Sanitizer::mergeAttributes(
$this->getRlClient()->getDocumentAttributes(),
$sk->getHtmlElementAttributes()
), [ 'class' => implode( ' ', $this->mAdditionalHtmlClasses ) ] );
$pieces[] = Html::htmlHeader( $htmlAttribs );
$pieces[] = Html::openElement( 'head' );
if ( $this->getHTMLTitle() == '' ) {
$this->setHTMLTitle( $this->msg( 'pagetitle', $this->getPageTitle() )->inContentLanguage() );
}
if ( !Html::isXmlMimeType( $config->get( MainConfigNames::MimeType ) ) ) {
// Add <meta charset="UTF-8">
// This should be before <title> since it defines the charset used by
// text including the text inside <title>.
// The spec recommends defining XHTML5's charset using the XML declaration
// instead of meta.
// Our XML declaration is output by Html::htmlHeader.
// https://html.spec.whatwg.org/multipage/semantics.html#attr-meta-http-equiv-content-type
// https://html.spec.whatwg.org/multipage/semantics.html#charset
$pieces[] = Html::element( 'meta', [ 'charset' => 'UTF-8' ] );
}
$pieces[] = Html::element( 'title', [], $this->getHTMLTitle() );
$pieces[] = $this->getRlClient()->getHeadHtml( $htmlAttribs['class'] ?? null );
$pieces[] = $this->buildExemptModules();
$pieces = array_merge( $pieces, array_values( $this->getHeadLinksArray() ) );
$pieces = array_merge( $pieces, array_values( $this->mHeadItems ) );
$pieces[] = Html::closeElement( 'head' );
$skinOptions = $sk->getOptions();
$bodyClasses = array_merge( $this->mAdditionalBodyClasses, $skinOptions['bodyClasses'] );
$bodyClasses[] = 'mediawiki';
# Classes for LTR/RTL directionality support
$bodyClasses[] = $userdir;
$bodyClasses[] = "sitedir-$sitedir";
// See Article:showDiffPage for class to support article diff styling
$underline = $services->getUserOptionsLookup()->getOption( $this->getUser(), 'underline' );
if ( $underline < 2 ) {
// The following classes can be used here:
// * mw-underline-always
// * mw-underline-never
$bodyClasses[] = 'mw-underline-' . ( $underline ? 'always' : 'never' );
}
// Parser feature migration class
// The idea is that this will eventually be removed, after the wikitext
// which requires it is cleaned up.
$bodyClasses[] = 'mw-hide-empty-elt';
$bodyClasses[] = $sk->getPageClasses( $this->getTitle() );
$bodyClasses[] = 'skin-' . Sanitizer::escapeClass( $sk->getSkinName() );
$bodyClasses[] =
'action-' . Sanitizer::escapeClass( $this->getContext()->getActionName() );
if ( $sk->isResponsive() ) {
$bodyClasses[] = 'skin--responsive';
}
$bodyAttrs = [];
// While the implode() is not strictly needed, it's used for backwards compatibility
// (this used to be built as a string and hooks likely still expect that).
$bodyAttrs['class'] = implode( ' ', $bodyClasses );
// Allow skins and extensions to add body attributes they need
// Get ones from deprecated method
if ( method_exists( $sk, 'addToBodyAttributes' ) ) {
/** @phan-suppress-next-line PhanUndeclaredMethod */
$sk->addToBodyAttributes( $this, $bodyAttrs );
wfDeprecated( 'Skin::addToBodyAttributes method to add body attributes', '1.35' );
}
// Then run the hook, the recommended way of adding body attributes now
$this->getHookRunner()->onOutputPageBodyAttributes( $this, $sk, $bodyAttrs );
$pieces[] = Html::openElement( 'body', $bodyAttrs );
return self::combineWrappedStrings( $pieces );
}
/**
* Get a ResourceLoader object associated with this OutputPage
*
* @return ResourceLoader
*/
public function getResourceLoader() {
if ( $this->mResourceLoader === null ) {
// Lazy-initialise as needed
$this->mResourceLoader = MediaWikiServices::getInstance()->getResourceLoader();
}
return $this->mResourceLoader;
}
/**
* Explicitly load or embed modules on a page.
*
* @param array|string $modules One or more module names
* @param string $only RL\Module TYPE_ class constant
* @param array $extraQuery [optional] Array with extra query parameters for the request
* @return string|WrappedStringList HTML
*/
public function makeResourceLoaderLink( $modules, $only, array $extraQuery = [] ) {
// Apply 'origin' filters
$modules = $this->filterModules( (array)$modules, null, $only );
return RL\ClientHtml::makeLoad(
$this->getRlClientContext(),
$modules,
$only,
$extraQuery
);
}
/**
* Combine WrappedString chunks and filter out empty ones
*
* @param array $chunks
* @return string|WrappedStringList HTML
*/
protected static function combineWrappedStrings( array $chunks ) {
// Filter out empty values
$chunks = array_filter( $chunks, 'strlen' );
return WrappedString::join( "\n", $chunks );
}
/**
* JS stuff to put at the bottom of the `<body>`.
* These are legacy scripts ($this->mScripts), and user JS.
*
* @return string|WrappedStringList HTML
*/
public function getBottomScripts() {
// Keep the hook appendage separate to preserve WrappedString objects.
// This enables to merge them where possible.
$extraHtml = '';
$this->getHookRunner()->onSkinAfterBottomScripts( $this->getSkin(), $extraHtml );
$chunks = [];
$chunks[] = $this->getRlClient()->getBodyHtml();
// Legacy non-ResourceLoader scripts
$chunks[] = $this->mScripts;
// Keep hostname and backend time as the first variables for quick view-source access.
// This other variables will form a very long inline blob.
$vars = [];
if ( $this->getConfig()->get( MainConfigNames::ShowHostnames ) ) {
$vars['wgHostname'] = wfHostname();
}
$elapsed = $this->getRequest()->getElapsedTime();
// seconds to milliseconds
$vars['wgBackendResponseTime'] = round( $elapsed * 1000 );
$vars += $this->getJSVars( self::JS_VAR_LATE );
if ( $this->limitReportJSData ) {
$vars['wgPageParseReport'] = $this->limitReportJSData;
}
$rlContext = $this->getRlClientContext();
$chunks[] = ResourceLoader::makeInlineScript(
'mw.config.set(' . $rlContext->encodeJson( $vars ) . ');'
);
$chunks = [ self::combineWrappedStrings( $chunks ) ];
if ( $extraHtml !== '' ) {
$chunks[] = $extraHtml;
}
return WrappedString::join( "\n", $chunks );
}
/**
* Get the javascript config vars to include on this page
*
* @return array Array of javascript config vars
* @since 1.23
*/
public function getJsConfigVars() {
return $this->mJsConfigVars;
}
/**
* Add one or more variables to be set in mw.config in JavaScript
*
* @param string|array $keys Key or array of key/value pairs
* @param mixed|null $value [optional] Value of the configuration variable
*/
public function addJsConfigVars( $keys, $value = null ) {
if ( is_array( $keys ) ) {
foreach ( $keys as $key => $value ) {
$this->mJsConfigVars[$key] = $value;
}
return;
}
$this->mJsConfigVars[$keys] = $value;
}
/**
* Get an array containing the variables to be set in mw.config in JavaScript.
*
* Do not add things here which can be evaluated in RL\StartUpModule,
* in other words, page-independent/site-wide variables (without state).
* These would add a blocking HTML cost to page rendering time, and require waiting for
* HTTP caches to expire before configuration changes take effect everywhere.
*
* By default, these are loaded in the HTML head and block page rendering.
* Config variable names can be set in CORE_LATE_JS_CONFIG_VAR_NAMES, or
* for extensions via the 'LateJSConfigVarNames' attribute, to opt-in to
* being sent from the end of the HTML body instead, to improve page load time.
* In JavaScript, late variables should be accessed via mw.hook('wikipage.content').
*
* @param int|null $flag Return only the specified kind of variables: self::JS_VAR_EARLY or self::JS_VAR_LATE.
* For internal use only.
* @return array
*/
public function getJSVars( ?int $flag = null ) {
$curRevisionId = 0;
$articleId = 0;
$canonicalSpecialPageName = false; # T23115
$services = MediaWikiServices::getInstance();
$title = $this->getTitle();
$ns = $title->getNamespace();
$nsInfo = $services->getNamespaceInfo();
$canonicalNamespace = $nsInfo->exists( $ns )
? $nsInfo->getCanonicalName( $ns )
: $title->getNsText();
$sk = $this->getSkin();
// Get the relevant title so that AJAX features can use the correct page name
// when making API requests from certain special pages (T36972).
$relevantTitle = $sk->getRelevantTitle();
if ( $ns === NS_SPECIAL ) {
[ $canonicalSpecialPageName, /*...*/ ] =
$services->getSpecialPageFactory()->
resolveAlias( $title->getDBkey() );
} elseif ( $this->canUseWikiPage() ) {
$wikiPage = $this->getWikiPage();
// If we already know that the latest revision ID is the same as the revision ID being viewed,
// avoid fetching it again, as it may give inconsistent results (T339164).
if ( $this->isRevisionCurrent() && $this->getRevisionId() ) {
$curRevisionId = $this->getRevisionId();
} else {
$curRevisionId = $wikiPage->getLatest();
}
$articleId = $wikiPage->getId();
}
// ParserOutput informs HTML/CSS via lang/dir attributes.
// We inform JavaScript via mw.config from here.
$lang = $this->getContentLangForJS();
// Pre-process information
$separatorTransTable = $lang->separatorTransformTable();
$separatorTransTable = $separatorTransTable ?: [];
$compactSeparatorTransTable = [
implode( "\t", array_keys( $separatorTransTable ) ),
implode( "\t", $separatorTransTable ),
];
$digitTransTable = $lang->digitTransformTable();
$digitTransTable = $digitTransTable ?: [];
$compactDigitTransTable = [
implode( "\t", array_keys( $digitTransTable ) ),
implode( "\t", $digitTransTable ),
];
$user = $this->getUser();
// Internal variables for MediaWiki core
$vars = [
// @internal For mediawiki.page.ready
'wgBreakFrames' => $this->getFrameOptions() == 'DENY',
// @internal For jquery.tablesorter
'wgSeparatorTransformTable' => $compactSeparatorTransTable,
'wgDigitTransformTable' => $compactDigitTransTable,
'wgDefaultDateFormat' => $lang->getDefaultDateFormat(),
'wgMonthNames' => $lang->getMonthNamesArray(),
// @internal For debugging purposes
'wgRequestId' => WebRequest::getRequestId(),
];
// Start of supported and stable config vars (for use by extensions/gadgets).
$vars += [
'wgCanonicalNamespace' => $canonicalNamespace,
'wgCanonicalSpecialPageName' => $canonicalSpecialPageName,
'wgNamespaceNumber' => $title->getNamespace(),
'wgPageName' => $title->getPrefixedDBkey(),
'wgTitle' => $title->getText(),
'wgCurRevisionId' => $curRevisionId,
'wgRevisionId' => (int)$this->getRevisionId(),
'wgArticleId' => $articleId,
'wgIsArticle' => $this->isArticle(),
'wgIsRedirect' => $title->isRedirect(),
'wgAction' => $this->getContext()->getActionName(),
'wgUserName' => $user->isAnon() ? null : $user->getName(),
'wgUserGroups' => $services->getUserGroupManager()->getUserEffectiveGroups( $user ),
'wgCategories' => $this->getCategories(),
'wgPageViewLanguage' => $lang->getCode(),
'wgPageContentLanguage' => $lang->getCode(),
'wgPageContentModel' => $title->getContentModel(),
'wgRelevantPageName' => $relevantTitle->getPrefixedDBkey(),
'wgRelevantArticleId' => $relevantTitle->getArticleID(),
];
if ( $user->isRegistered() ) {
$vars['wgUserId'] = $user->getId();
$vars['wgUserIsTemp'] = $user->isTemp();
$vars['wgUserEditCount'] = $user->getEditCount();
$userReg = $user->getRegistration();
$vars['wgUserRegistration'] = $userReg ? (int)wfTimestamp( TS_UNIX, $userReg ) * 1000 : null;
$userFirstReg = $services->getUserRegistrationLookup()->getFirstRegistration( $user );
$vars['wgUserFirstRegistration'] = $userFirstReg ? (int)wfTimestamp( TS_UNIX, $userFirstReg ) * 1000 : null;
// Get the revision ID of the oldest new message on the user's talk
// page. This can be used for constructing new message alerts on
// the client side.
$userNewMsgRevId = $this->getLastSeenUserTalkRevId();
// Only occupy precious space in the <head> when it is non-null (T53640)
// mw.config.get returns null by default.
if ( $userNewMsgRevId ) {
$vars['wgUserNewMsgRevisionId'] = $userNewMsgRevId;
}
} else {
$tempUserCreator = $services->getTempUserCreator();
if ( $tempUserCreator->isEnabled() ) {
// For logged-out users only (without a temporary account): get the user name that will
// be used for their temporary account, if it has already been acquired.
// This may be used in previews.
$session = $this->getRequest()->getSession();
$vars['wgTempUserName'] = $tempUserCreator->getStashedName( $session );
}
}
$languageConverter = $services->getLanguageConverterFactory()
->getLanguageConverter( $title->getPageLanguage() );
if ( $languageConverter->hasVariants() ) {
$vars['wgUserVariant'] = $languageConverter->getPreferredVariant();
}
// Same test as SkinTemplate
$vars['wgIsProbablyEditable'] = $this->getAuthority()->probablyCan( 'edit', $title );
$vars['wgRelevantPageIsProbablyEditable'] = $relevantTitle &&
$this->getAuthority()->probablyCan( 'edit', $relevantTitle );
$restrictionStore = $services->getRestrictionStore();
foreach ( $restrictionStore->listApplicableRestrictionTypes( $title ) as $type ) {
// Following keys are set in $vars:
// wgRestrictionCreate, wgRestrictionEdit, wgRestrictionMove, wgRestrictionUpload
$vars['wgRestriction' . ucfirst( $type )] = $restrictionStore->getRestrictions( $title, $type );
}
if ( $title->isMainPage() ) {
$vars['wgIsMainPage'] = true;
}
$relevantUser = $sk->getRelevantUser();
if ( $relevantUser ) {
$vars['wgRelevantUserName'] = $relevantUser->getName();
}
// End of stable config vars
$titleFormatter = $services->getTitleFormatter();
if ( $this->mRedirectedFrom ) {
// @internal For skin JS
$vars['wgRedirectedFrom'] = $titleFormatter->getPrefixedDBkey( $this->mRedirectedFrom );
}
// Allow extensions to add their custom variables to the mw.config map.
// Use the 'ResourceLoaderGetConfigVars' hook if the variable is not
// page-dependent but site-wide (without state).
// Alternatively, you may want to use OutputPage->addJsConfigVars() instead.
$this->getHookRunner()->onMakeGlobalVariablesScript( $vars, $this );
// Merge in variables from addJsConfigVars last
$vars = array_merge( $vars, $this->getJsConfigVars() );
// Return only early or late vars if requested
if ( $flag !== null ) {
$lateVarNames =
array_fill_keys( self::CORE_LATE_JS_CONFIG_VAR_NAMES, true ) +
array_fill_keys( ExtensionRegistry::getInstance()->getAttribute( 'LateJSConfigVarNames' ), true );
foreach ( $vars as $name => $_ ) {
// If the variable's late flag doesn't match the requested late flag, unset it
if ( isset( $lateVarNames[ $name ] ) !== ( $flag === self::JS_VAR_LATE ) ) {
unset( $vars[ $name ] );
}
}
}
return $vars;
}
/**
* Get the revision ID for the last user talk page revision viewed by the talk page owner.
*
* @return int|null
*/
private function getLastSeenUserTalkRevId() {
$services = MediaWikiServices::getInstance();
$user = $this->getUser();
$userHasNewMessages = $services
->getTalkPageNotificationManager()
->userHasNewMessages( $user );
if ( !$userHasNewMessages ) {
return null;
}
$timestamp = $services
->getTalkPageNotificationManager()
->getLatestSeenMessageTimestamp( $user );
if ( !$timestamp ) {
return null;
}
$revRecord = $services->getRevisionLookup()->getRevisionByTimestamp(
$user->getTalkPage(),
$timestamp
);
return $revRecord ? $revRecord->getId() : null;
}
/**
* To make it harder for someone to slip a user a fake
* JavaScript or CSS preview, a random token
* is associated with the login session. If it's not
* passed back with the preview request, we won't render
* the code.
*
* @return bool
*/
public function userCanPreview() {
$request = $this->getRequest();
if (
$request->getRawVal( 'action' ) !== 'submit' ||
!$request->wasPosted()
) {
return false;
}
$user = $this->getUser();
if ( !$user->isRegistered() ) {
// Anons have predictable edit tokens
return false;
}
if ( !$user->matchEditToken( $request->getVal( 'wpEditToken' ) ) ) {
return false;
}
$title = $this->getTitle();
if ( !$this->getAuthority()->probablyCan( 'edit', $title ) ) {
return false;
}
return true;
}
/**
* @return array Array in format "link name or number => 'link html'".
*/
public function getHeadLinksArray() {
$tags = [];
$config = $this->getConfig();
if ( $this->cspOutputMode === self::CSP_META ) {
foreach ( $this->CSP->getDirectives() as $header => $directive ) {
$tags["meta-csp-$header"] = Html::element( 'meta', [
'http-equiv' => $header,
'content' => $directive,
] );
}
}
$tags['meta-generator'] = Html::element( 'meta', [
'name' => 'generator',
'content' => 'MediaWiki ' . MW_VERSION,
] );
if ( $config->get( MainConfigNames::ReferrerPolicy ) !== false ) {
// Per https://w3c.github.io/webappsec-referrer-policy/#unknown-policy-values
// fallbacks should come before the primary value so we need to reverse the array.
foreach ( array_reverse( (array)$config->get( MainConfigNames::ReferrerPolicy ) ) as $i => $policy ) {
$tags["meta-referrer-$i"] = Html::element( 'meta', [
'name' => 'referrer',
'content' => $policy,
] );
}
}
$p = $this->getRobotsContent();
if ( $p ) {
// http://www.robotstxt.org/wc/meta-user.html
// Only show if it's different from the default robots policy
$tags['meta-robots'] = Html::element( 'meta', [
'name' => 'robots',
'content' => $p,
] );
}
# Browser based phonenumber detection
if ( $config->get( MainConfigNames::BrowserFormatDetection ) !== false ) {
$tags['meta-format-detection'] = Html::element( 'meta', [
'name' => 'format-detection',
'content' => $config->get( MainConfigNames::BrowserFormatDetection ),
] );
}
foreach ( $this->mMetatags as [ $name, $val ] ) {
$attrs = [];
if ( strncasecmp( $name, 'http:', 5 ) === 0 ) {
$name = substr( $name, 5 );
$attrs['http-equiv'] = $name;
} elseif ( strncasecmp( $name, 'og:', 3 ) === 0 ) {
$attrs['property'] = $name;
} else {
$attrs['name'] = $name;
}
$attrs['content'] = $val;
$tagName = "meta-$name";
if ( isset( $tags[$tagName] ) ) {
$tagName .= $val;
}
$tags[$tagName] = Html::element( 'meta', $attrs );
}
foreach ( $this->mLinktags as $tag ) {
$tags[] = Html::element( 'link', $tag );
}
if ( $config->get( MainConfigNames::UniversalEditButton ) && $this->isArticleRelated() ) {
if ( $this->getAuthority()->probablyCan( 'edit', $this->getTitle() ) ) {
$msg = $this->msg( 'edit' )->text();
// Use mime type per https://phabricator.wikimedia.org/T21165#6946526
$tags['universal-edit-button'] = Html::element( 'link', [
'rel' => 'alternate',
'type' => 'application/x-wiki',
'title' => $msg,
'href' => $this->getTitle()->getEditURL(),
] );
}
}
# Generally the order of the favicon and apple-touch-icon links
# should not matter, but Konqueror (3.5.9 at least) incorrectly
# uses whichever one appears later in the HTML source. Make sure
# apple-touch-icon is specified first to avoid this.
if ( $config->get( MainConfigNames::AppleTouchIcon ) !== false ) {
$tags['apple-touch-icon'] = Html::element( 'link', [
'rel' => 'apple-touch-icon',
'href' => $config->get( MainConfigNames::AppleTouchIcon )
] );
}
if ( $config->get( MainConfigNames::Favicon ) !== false ) {
$tags['favicon'] = Html::element( 'link', [
'rel' => 'icon',
'href' => $config->get( MainConfigNames::Favicon )
] );
}
# OpenSearch description link
$tags['opensearch'] = Html::element( 'link', [
'rel' => 'search',
'type' => 'application/opensearchdescription+xml',
'href' => wfScript( 'opensearch_desc' ),
'title' => $this->msg( 'opensearch-desc' )->inContentLanguage()->text(),
] );
$services = MediaWikiServices::getInstance();
# Real Simple Discovery link, provides auto-discovery information
# for the MediaWiki API (and potentially additional custom API
# support such as WordPress or Twitter-compatible APIs for a
# blogging extension, etc)
$tags['rsd'] = Html::element( 'link', [
'rel' => 'EditURI',
'type' => 'application/rsd+xml',
// Output a protocol-relative URL here if $wgServer is protocol-relative.
// Whether RSD accepts relative or protocol-relative URLs is completely
// undocumented, though.
'href' => (string)$services->getUrlUtils()->expand( wfAppendQuery(
wfScript( 'api' ),
[ 'action' => 'rsd' ] ),
PROTO_RELATIVE
),
] );
$tags = array_merge(
$tags,
$this->getHeadLinksCanonicalURLArray( $config ),
$this->getHeadLinksAlternateURLsArray(),
$this->getHeadLinksCopyrightArray( $config ),
$this->getHeadLinksSyndicationArray( $config ),
);
// Allow extensions to add, remove and/or otherwise manipulate these links
// If you want only to *add* <head> links, please use the addHeadItem()
// (or addHeadItems() for multiple items) method instead.
// This hook is provided as a last resort for extensions to modify these
// links before the output is sent to client.
$this->getHookRunner()->onOutputPageAfterGetHeadLinksArray( $tags, $this );
return $tags;
}
/**
* Canonical URL and alternate URLs
*
* isCanonicalUrlAction affects all requests where "setArticleRelated" is true.
* This is typically all requests that show content (query title, curid, oldid, diff),
* and all wikipage actions (edit, delete, purge, info, history etc.).
* It does not apply to file pages and special pages.
* 'history' and 'info' actions address page metadata rather than the page
* content itself, so they may not be canonicalized to the view page url.
* TODO: this logic should be owned by Action subclasses.
* See T67402
*/
/**
* Get head links relating to the canonical URL
* Note: There should only be one canonical URL.
* @param Config $config
* @return array
*/
private function getHeadLinksCanonicalURLArray( Config $config ) {
$tags = [];
$canonicalUrl = $this->mCanonicalUrl;
if ( $config->get( MainConfigNames::EnableCanonicalServerLink ) ) {
$query = [];
$action = $this->getContext()->getActionName();
$isCanonicalUrlAction = in_array( $action, [ 'history', 'info' ] );
$services = MediaWikiServices::getInstance();
$languageConverterFactory = $services->getLanguageConverterFactory();
$isLangConversionDisabled = $languageConverterFactory->isConversionDisabled();
$pageLang = $this->getTitle()->getPageLanguage();
$pageLanguageConverter = $languageConverterFactory->getLanguageConverter( $pageLang );
$urlVariant = $pageLanguageConverter->getURLVariant();
if ( $canonicalUrl !== false ) {
$canonicalUrl = (string)$services->getUrlUtils()->expand( $canonicalUrl, PROTO_CANONICAL );
} elseif ( $this->isArticleRelated() ) {
if ( $isCanonicalUrlAction ) {
$query['action'] = $action;
} elseif ( !$isLangConversionDisabled && $urlVariant ) {
# T54429, T108443: Making canonical URL language-variant-aware.
$query['variant'] = $urlVariant;
}
$canonicalUrl = $this->getTitle()->getCanonicalURL( $query );
} else {
$reqUrl = $this->getRequest()->getRequestURL();
$canonicalUrl = (string)$services->getUrlUtils()->expand( $reqUrl, PROTO_CANONICAL );
}
}
if ( $canonicalUrl !== false ) {
$tags['link-canonical'] = Html::element( 'link', [
'rel' => 'canonical',
'href' => $canonicalUrl
] );
}
return $tags;
}
/**
* Get head links relating to alternate URL(s) in languages including language variants
* Output fully-qualified URL since meta alternate URLs must be fully-qualified
* Per https://developers.google.com/search/docs/advanced/crawling/localized-versions
* See T294716
*
* @return array
*/
private function getHeadLinksAlternateURLsArray() {
$tags = [];
$languageUrls = [];
$action = $this->getContext()->getActionName();
$isCanonicalUrlAction = in_array( $action, [ 'history', 'info' ] );
$services = MediaWikiServices::getInstance();
$languageConverterFactory = $services->getLanguageConverterFactory();
$isLangConversionDisabled = $languageConverterFactory->isConversionDisabled();
$pageLang = $this->getTitle()->getPageLanguage();
$pageLanguageConverter = $languageConverterFactory->getLanguageConverter( $pageLang );
# Language variants
if (
$this->isArticleRelated() &&
!$isCanonicalUrlAction &&
$pageLanguageConverter->hasVariants() &&
!$isLangConversionDisabled
) {
$variants = $pageLanguageConverter->getVariants();
foreach ( $variants as $variant ) {
$bcp47 = LanguageCode::bcp47( $variant );
$languageUrls[$bcp47] = $this->getTitle()
->getFullURL( [ 'variant' => $variant ], false, PROTO_CURRENT );
}
}
# Alternate URLs for interlanguage links would be handeled in HTML body tag instead of
# head tag, see T326829.
if ( $languageUrls ) {
# Force the alternate URL of page language code to be self.
# T123901, T305540, T108443: Override mixed-variant variant link in language variant links.
$currentUrl = $this->getTitle()->getFullURL( [], false, PROTO_CURRENT );
$pageLangCodeBcp47 = LanguageCode::bcp47( $pageLang->getCode() );
$languageUrls[$pageLangCodeBcp47] = $currentUrl;
ksort( $languageUrls );
# Also add x-default link per https://support.google.com/webmasters/answer/189077?hl=en
$languageUrls['x-default'] = $currentUrl;
# Process all of language variants and interlanguage links
foreach ( $languageUrls as $bcp47 => $languageUrl ) {
$bcp47lowercase = strtolower( $bcp47 );
$tags['link-alternate-language-' . $bcp47lowercase] = Html::element( 'link', [
'rel' => 'alternate',
'hreflang' => $bcp47,
'href' => $languageUrl,
] );
}
}
return $tags;
}
/**
* Get head links relating to copyright
*
* @param Config $config
* @return array
*/
private function getHeadLinksCopyrightArray( Config $config ) {
$tags = [];
if ( $this->copyrightUrl !== null ) {
$copyright = $this->copyrightUrl;
} else {
$copyright = '';
if ( $config->get( MainConfigNames::RightsPage ) ) {
$copy = Title::newFromText( $config->get( MainConfigNames::RightsPage ) );
if ( $copy ) {
$copyright = $copy->getLocalURL();
}
}
if ( !$copyright && $config->get( MainConfigNames::RightsUrl ) ) {
$copyright = $config->get( MainConfigNames::RightsUrl );
}
}
if ( $copyright ) {
$tags['copyright'] = Html::element( 'link', [
'rel' => 'license',
'href' => $copyright
] );
}
return $tags;
}
/**
* Get head links relating to syndication feeds.
*
* @param Config $config
* @return array
*/
private function getHeadLinksSyndicationArray( Config $config ) {
if ( !$config->get( MainConfigNames::Feed ) ) {
return [];
}
$tags = [];
$feedLinks = [];
foreach ( $this->getSyndicationLinks() as $format => $link ) {
# Use the page name for the title. In principle, this could
# lead to issues with having the same name for different feeds
# corresponding to the same page, but we can't avoid that at
# this low a level.
$feedLinks[] = $this->feedLink(
$format,
$link,
# Used messages: 'page-rss-feed' and 'page-atom-feed' (for an easier grep)
$this->msg(
"page-{$format}-feed", $this->getTitle()->getPrefixedText()
)->text()
);
}
# Recent changes feed should appear on every page (except recentchanges,
# that would be redundant). Put it after the per-page feed to avoid
# changing existing behavior. It's still available, probably via a
# menu in your browser. Some sites might have a different feed they'd
# like to promote instead of the RC feed (maybe like a "Recent New Articles"
# or "Breaking news" one). For this, we see if $wgOverrideSiteFeed is defined.
# If so, use it instead.
$sitename = $config->get( MainConfigNames::Sitename );
$overrideSiteFeed = $config->get( MainConfigNames::OverrideSiteFeed );
if ( $overrideSiteFeed ) {
foreach ( $overrideSiteFeed as $type => $feedUrl ) {
// Note, this->feedLink escapes the url.
$feedLinks[] = $this->feedLink(
$type,
$feedUrl,
$this->msg( "site-{$type}-feed", $sitename )->text()
);
}
} elseif ( !$this->getTitle()->isSpecial( 'Recentchanges' ) ) {
$rctitle = SpecialPage::getTitleFor( 'Recentchanges' );
foreach ( $this->getAdvertisedFeedTypes() as $format ) {
$feedLinks[] = $this->feedLink(
$format,
$rctitle->getLocalURL( [ 'feed' => $format ] ),
# For grep: 'site-rss-feed', 'site-atom-feed'
$this->msg( "site-{$format}-feed", $sitename )->text()
);
}
}
# Allow extensions to change the list pf feeds. This hook is primarily for changing,
# manipulating or removing existing feed tags. If you want to add new feeds, you should
# use OutputPage::addFeedLink() instead.
$this->getHookRunner()->onAfterBuildFeedLinks( $feedLinks );
$tags += $feedLinks;
return $tags;
}
/**
* Generate a "<link rel/>" for a feed.
*
* @param string $type Feed type
* @param string $url URL to the feed
* @param string $text Value of the "title" attribute
* @return string HTML fragment
*/
private function feedLink( $type, $url, $text ) {
return Html::element( 'link', [
'rel' => 'alternate',
'type' => "application/$type+xml",
'title' => $text,
'href' => $url ]
);
}
/**
* Add a local or specified stylesheet, with the given media options.
* Internal use only. Use OutputPage::addModuleStyles() if possible.
*
* @param string $style URL to the file
* @param string $media To specify a media type, 'screen', 'printable', 'handheld' or any.
* @param string $condition For IE conditional comments, specifying an IE version
* @param string $dir Set to 'rtl' or 'ltr' for direction-specific sheets
*/
public function addStyle( $style, $media = '', $condition = '', $dir = '' ) {
$options = [];
if ( $media ) {
$options['media'] = $media;
}
if ( $condition ) {
$options['condition'] = $condition;
}
if ( $dir ) {
$options['dir'] = $dir;
}
$this->styles[$style] = $options;
}
/**
* Adds inline CSS styles
* Internal use only. Use OutputPage::addModuleStyles() if possible.
*
* @param mixed $style_css Inline CSS
* @param-taint $style_css exec_html
* @param string $flip Set to 'flip' to flip the CSS if needed
*/
public function addInlineStyle( $style_css, $flip = 'noflip' ) {
if ( $flip === 'flip' && $this->getLanguage()->isRTL() ) {
# If wanted, and the interface is right-to-left, flip the CSS
$style_css = CSSJanus::transform( $style_css, true, false );
}
$this->mInlineStyles .= Html::inlineStyle( $style_css );
}
/**
* Build exempt modules and legacy non-ResourceLoader styles.
*
* @return string|WrappedStringList HTML
*/
protected function buildExemptModules() {
$chunks = [];
// Requirements:
// - Within modules provided by the software (core, skin, extensions),
// styles from skin stylesheets should be overridden by styles
// from modules dynamically loaded with JavaScript.
// - Styles from site-specific, private, and user modules should override
// both of the above.
//
// The effective order for stylesheets must thus be:
// 1. Page style modules, formatted server-side by RL\ClientHtml.
// 2. Dynamically-loaded styles, inserted client-side by mw.loader.
// 3. Styles that are site-specific, private or from the user, formatted
// server-side by this function.
//
// The 'ResourceLoaderDynamicStyles' marker helps JavaScript know where
// point #2 is.
// Add legacy styles added through addStyle()/addInlineStyle() here
$chunks[] = implode( '', $this->buildCssLinksArray() ) . $this->mInlineStyles;
// Things that go after the ResourceLoaderDynamicStyles marker
$append = [];
$separateReq = [ 'site.styles', 'user.styles' ];
foreach ( $this->rlExemptStyleModules as $moduleNames ) {
if ( $moduleNames ) {
$append[] = $this->makeResourceLoaderLink(
array_diff( $moduleNames, $separateReq ),
RL\Module::TYPE_STYLES
);
foreach ( array_intersect( $moduleNames, $separateReq ) as $name ) {
// These require their own dedicated request in order to support "@import"
// syntax, which is incompatible with concatenation. (T147667, T37562)
$append[] = $this->makeResourceLoaderLink( $name,
RL\Module::TYPE_STYLES
);
}
}
}
if ( $append ) {
$chunks[] = Html::element(
'meta',
[ 'name' => 'ResourceLoaderDynamicStyles', 'content' => '' ]
);
$chunks = array_merge( $chunks, $append );
}
return self::combineWrappedStrings( $chunks );
}
/**
* @return array
*/
public function buildCssLinksArray() {
$links = [];
foreach ( $this->styles as $file => $options ) {
$link = $this->styleLink( $file, $options );
if ( $link ) {
$links[$file] = $link;
}
}
return $links;
}
/**
* Generate \<link\> tags for stylesheets
*
* @param string $style URL to the file
* @param array $options Option, can contain 'condition', 'dir', 'media' keys
* @return string HTML fragment
*/
protected function styleLink( $style, array $options ) {
if ( isset( $options['dir'] ) && $this->getLanguage()->getDir() != $options['dir'] ) {
return '';
}
if ( isset( $options['media'] ) ) {
$media = self::transformCssMedia( $options['media'] );
if ( $media === null ) {
return '';
}
} else {
$media = 'all';
}
if ( str_starts_with( $style, '/' ) ||
str_starts_with( $style, 'http:' ) ||
str_starts_with( $style, 'https:' )
) {
$url = $style;
} else {
$config = $this->getConfig();
// Append file hash as query parameter
$url = self::transformResourcePath(
$config,
$config->get( MainConfigNames::StylePath ) . '/' . $style
);
}
$link = Html::linkedStyle( $url, $media );
if ( isset( $options['condition'] ) ) {
$condition = htmlspecialchars( $options['condition'] );
$link = "<!--[if $condition]>$link<![endif]-->";
}
return $link;
}
/**
* Transform path to web-accessible static resource.
*
* This is used to add a validation hash as query string.
* This aids various behaviors:
*
* - Put long Cache-Control max-age headers on responses for improved
* cache performance.
* - Get the correct version of a file as expected by the current page.
* - Instantly get the updated version of a file after deployment.
*
* Avoid using this for urls included in HTML as otherwise clients may get different
* versions of a resource when navigating the site depending on when the page was cached.
* If changes to the url propagate, this is not a problem (e.g. if the url is in
* an external stylesheet).
*
* @since 1.27
* @param Config $config
* @param string $path Path-absolute URL to file (from document root, must start with "/")
* @return string URL
*/
public static function transformResourcePath( Config $config, $path ) {
$localDir = $config->get( MainConfigNames::BaseDirectory );
$remotePathPrefix = $config->get( MainConfigNames::ResourceBasePath );
if ( $remotePathPrefix === '' ) {
// The configured base path is required to be empty string for
// wikis in the domain root
$remotePath = '/';
} else {
$remotePath = $remotePathPrefix;
}
if ( !str_starts_with( $path, $remotePath ) || str_starts_with( $path, '//' ) ) {
// - Path is outside wgResourceBasePath, ignore.
// - Path is protocol-relative. Fixes T155310. Not supported by RelPath lib.
return $path;
}
// For files in resources, extensions/ or skins/, ResourceBasePath is preferred here.
// For other misc files in $IP, we'll fallback to that as well. There is, however, a fourth
// supported dir/path pair in the configuration (wgUploadDirectory, wgUploadPath)
// which is not expected to be in wgResourceBasePath on CDNs. (T155146)
$uploadPath = $config->get( MainConfigNames::UploadPath );
if ( strpos( $path, $uploadPath ) === 0 ) {
$localDir = $config->get( MainConfigNames::UploadDirectory );
$remotePathPrefix = $remotePath = $uploadPath;
}
$path = RelPath::getRelativePath( $path, $remotePath );
return self::transformFilePath( $remotePathPrefix, $localDir, $path );
}
/**
* Utility method for transformResourceFilePath().
*
* Caller is responsible for ensuring the file exists. Emits a PHP warning otherwise.
*
* @since 1.27
* @param string $remotePathPrefix URL path prefix that points to $localPath
* @param string $localPath File directory exposed at $remotePath
* @param string $file Path to target file relative to $localPath
* @return string URL
*/
public static function transformFilePath( $remotePathPrefix, $localPath, $file ) {
// This MUST match the equivalent logic in CSSMin::remapOne()
$localFile = "$localPath/$file";
$url = "$remotePathPrefix/$file";
if ( is_file( $localFile ) ) {
$hash = md5_file( $localFile );
if ( $hash === false ) {
wfLogWarning( __METHOD__ . ": Failed to hash $localFile" );
$hash = '';
}
$url .= '?' . substr( $hash, 0, 5 );
}
return $url;
}
/**
* Transform "media" attribute based on request parameters
*
* @param string $media Current value of the "media" attribute
* @return string|null Modified value of the "media" attribute, or null to disable
* this stylesheet
*/
public static function transformCssMedia( $media ) {
global $wgRequest;
if ( $wgRequest->getBool( 'printable' ) ) {
// When browsing with printable=yes, apply "print" media styles
// as if they are screen styles (no media, media="").
if ( $media === 'print' ) {
return '';
}
// https://www.w3.org/TR/css3-mediaqueries/#syntax
//
// This regex will not attempt to understand a comma-separated media_query_list
// Example supported values for $media:
//
// 'screen', 'only screen', 'screen and (min-width: 982px)' ),
//
// Example NOT supported value for $media:
//
// '3d-glasses, screen, print and resolution > 90dpi'
//
// If it's a "printable" request, we disable all screen stylesheets.
$screenMediaQueryRegex = '/^(?:only\s+)?screen\b/i';
if ( preg_match( $screenMediaQueryRegex, $media ) === 1 ) {
return null;
}
}
return $media;
}
/**
* Add a wikitext-formatted message to the output.
*
* @param string $name Message key
* @param mixed ...$args Message parameters. Unlike wfMessage(), this method only accepts
* variadic parameters (they can't be passed as a single array parameter).
*/
public function addWikiMsg( $name, ...$args ) {
$this->addWikiMsgArray( $name, $args );
}
/**
* Add a wikitext-formatted message to the output.
*
* @param string $name Message key
* @param array $args Message parameters. Unlike wfMessage(), this method only accepts
* the parameters as an array (they can't be passed as variadic parameters),
* or just a single parameter (this only works by accident, don't rely on it).
*/
public function addWikiMsgArray( $name, $args ) {
$this->addHTML( $this->msg( $name, $args )->parseAsBlock() );
}
/**
* This function takes a number of message/argument specifications, wraps them in
* some overall structure, and then parses the result and adds it to the output.
*
* In the $wrap, $1 is replaced with the first message, $2 with the second,
* and so on. The subsequent arguments may be either
* 1) strings, in which case they are message names, or
* 2) arrays, in which case, within each array, the first element is the message
* name, and subsequent elements are the parameters to that message.
*
* Don't use this for messages that are not in the user's interface language.
*
* For example:
*
* $wgOut->wrapWikiMsg( "<div class='customclass'>\n$1\n</div>", 'some-msg-key' );
*
* Is equivalent to:
*
* $wgOut->addWikiTextAsInterface( "<div class='customclass'>\n"
* . wfMessage( 'some-msg-key' )->plain() . "\n</div>" );
*
* The newline after the opening div is needed in some wikitext. See T21226.
*
* @param string $wrap
* @param mixed ...$msgSpecs
*/
public function wrapWikiMsg( $wrap, ...$msgSpecs ) {
$s = $wrap;
foreach ( $msgSpecs as $n => $spec ) {
if ( is_array( $spec ) ) {
$args = $spec;
$name = array_shift( $args );
} else {
$args = [];
$name = $spec;
}
$s = str_replace( '$' . ( $n + 1 ), $this->msg( $name, $args )->plain(), $s );
}
$this->addWikiTextAsInterface( $s );
}
/**
* Whether the output has a table of contents when the ToC is
* rendered inline.
* @return bool
* @since 1.22
*/
public function isTOCEnabled() {
return $this->mEnableTOC;
}
/**
* Helper function to setup the PHP implementation of OOUI to use in this request.
*
* @since 1.26
* @param string|null $skinName Ignored since 1.41
* @param string|null $dir Ignored since 1.41
*/
public static function setupOOUI( $skinName = null, $dir = null ) {
if ( !self::$oouiSetupDone ) {
self::$oouiSetupDone = true;
$context = RequestContext::getMain();
$skinName = $context->getSkinName();
$dir = $context->getLanguage()->getDir();
$themes = RL\OOUIFileModule::getSkinThemeMap();
$theme = $themes[$skinName] ?? $themes['default'];
// For example, 'OOUI\WikimediaUITheme'.
$themeClass = "OOUI\\{$theme}Theme";
Theme::setSingleton( new $themeClass() );
Element::setDefaultDir( $dir );
}
}
/**
* Notify of a change in global skin or language which would necessitate
* reinitialization of OOUI global static data.
* @internal
*/
public static function resetOOUI() {
if ( self::$oouiSetupDone ) {
self::$oouiSetupDone = false;
self::setupOOUI();
}
}
/**
* Add ResourceLoader module styles for OOUI and set up the PHP implementation of it for use with
* MediaWiki and this OutputPage instance.
*
* @since 1.25
*/
public function enableOOUI() {
self::setupOOUI();
$this->addModuleStyles( [
'oojs-ui-core.styles',
'oojs-ui.styles.indicators',
'mediawiki.widgets.styles',
'oojs-ui-core.icons',
] );
}
/**
* Get (and set if not yet set) the CSP nonce.
*
* This value needs to be included in any <script> tags on the
* page.
*
* @return string|false Nonce or false to mean don't output nonce
* @since 1.32
* @deprecated Since 1.35 use getCSP()->getNonce() instead
*/
public function getCSPNonce() {
wfDeprecated( __METHOD__, '1.35' );
return $this->CSP->getNonce();
}
/**
* Get the ContentSecurityPolicy object
*
* @since 1.35
* @return ContentSecurityPolicy
*/
public function getCSP() {
return $this->CSP;
}
/**
* Sets the output mechanism for content security policies (HTTP headers or meta tags).
* Defaults to HTTP headers; in most cases this should not be changed.
*
* Meta mode should not be used together with setArticleBodyOnly() as meta tags and other
* headers are not output when that flag is set.
*
* @param string $mode One of the CSP_* constants
* @phan-param 'headers'|'meta' $mode
* @return void
* @see self::CSP_HEADERS
* @see self::CSP_META
*/
public function setCspOutputMode( string $mode ): void {
$this->cspOutputMode = $mode;
}
/**
* The final bits that go to the bottom of a page
* HTML document including the closing tags
*
* @internal
* @since 1.37
* @param Skin $skin
* @return string
*/
public function tailElement( $skin ) {
$tail = [
MWDebug::getDebugHTML( $skin ),
$this->getBottomScripts(),
MWDebug::getHTMLDebugLog(),
Html::closeElement( 'body' ),
Html::closeElement( 'html' ),
];
return WrappedStringList::join( "\n", $tail );
}
}
/** @deprecated class alias since 1.41 */
class_alias( OutputPage::class, 'OutputPage' );