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<?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
*/
/**
* This class should be covered by a general architecture document which does
* not exist as of January 2011. This is one of the Core classes and should
* be read at least once by any new developers.
*
* 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 {
/// Should be private. Used with addMeta() which adds "<meta>"
var $mMetatags = array();
/// "<meta keywords='stuff'>" most of the time the first 10 links to an article
var $mKeywords = array();
var $mLinktags = array();
var $mCanonicalUrl = false;
/// Additional stylesheets. Looks like this is for extensions. Might be replaced by resource loader.
var $mExtStyles = array();
/// Should be private - has getter and setter. Contains the HTML title
var $mPagetitle = '';
/// Contains all of the "<body>" content. Should be private we got set/get accessors and the append() method.
var $mBodytext = '';
/**
* Holds the debug lines that will be output as comments in page source if
* $wgDebugComments is enabled. See also $wgShowDebug.
* @deprecated since 1.20; use MWDebug class instead.
*/
public $mDebugtext = '';
/// Should be private. Stores contents of "<title>" tag
var $mHTMLtitle = '';
/// Should be private. Is the displayed content related to the source of the corresponding wiki article.
var $mIsarticle = false;
/**
* Should be private. Has get/set methods properly documented.
* Stores "article flag" toggle.
*/
var $mIsArticleRelated = true;
/**
* Should be private. We have to set isPrintable(). Some pages should
* never be printed (ex: redirections).
*/
var $mPrintable = false;
/**
* Should be private. We have set/get/append methods.
*
* Contains the page subtitle. Special pages usually have some links here.
* Don't confuse with site subtitle added by skins.
*/
private $mSubtitle = array();
var $mRedirect = '';
var $mStatusCode;
/**
* mLastModified and mEtag are used for sending cache control.
* The whole caching system should probably be moved into its own class.
*/
var $mLastModified = '';
/**
* Should be private. No getter but used in sendCacheControl();
* Contains an HTTP Entity Tags (see RFC 2616 section 3.13) which is used
* as a unique identifier for the content. It is later used by the client
* to compare its cached version with the server version. Client sends
* headers If-Match and If-None-Match containing its locally cached ETAG value.
*
* To get more information, you will have to look at HTTP/1.1 protocol which
* is properly described in RFC 2616 : http://tools.ietf.org/html/rfc2616
*/
var $mETag = false;
var $mCategoryLinks = array();
var $mCategories = array();
/// Should be private. Array of Interwiki Prefixed (non DB key) Titles (e.g. 'fr:Test page')
var $mLanguageLinks = array();
/**
* Should be private. Used for JavaScript (pre resource loader)
* We should split js / css.
* mScripts content is inserted as is in "<head>" by Skin. This might
* contains either a link to a stylesheet or inline css.
*/
var $mScripts = '';
/**
* Inline CSS styles. Use addInlineStyle() sparingly
*/
var $mInlineStyles = '';
//
var $mLinkColours;
/**
* Used by skin template.
* Example: $tpl->set( 'displaytitle', $out->mPageLinkTitle );
*/
var $mPageLinkTitle = '';
/// Array of elements in "<head>". Parser might add its own headers!
var $mHeadItems = array();
// @todo FIXME: Next variables probably comes from the resource loader
var $mModules = array(), $mModuleScripts = array(), $mModuleStyles = array(), $mModuleMessages = array();
var $mResourceLoader;
var $mJsConfigVars = array();
/** @todo FIXME: Is this still used ?*/
var $mInlineMsg = array();
var $mTemplateIds = array();
var $mImageTimeKeys = array();
var $mRedirectCode = '';
var $mFeedLinksAppendQuery = null;
# What level of 'untrustworthiness' is allowed in CSS/JS modules loaded on this page?
# @see ResourceLoaderModule::$origin
# ResourceLoaderModule::ORIGIN_ALL is assumed unless overridden;
protected $mAllowedModules = array(
ResourceLoaderModule::TYPE_COMBINED => ResourceLoaderModule::ORIGIN_ALL,
);
/**
* @EasterEgg I just love the name for this self documenting variable.
* @todo document
*/
var $mDoNothing = false;
// Parser related.
var $mContainsOldMagic = 0, $mContainsNewMagic = 0;
/**
* lazy initialised, use parserOptions()
* @var ParserOptions
*/
protected $mParserOptions = null;
/**
* Handles the atom / rss links.
* We probably only support atom in 2011.
* Looks like a private variable.
* @see $wgAdvertisedFeedTypes
*/
var $mFeedLinks = array();
// Gwicke work on squid caching? Roughly from 2003.
var $mEnableClientCache = true;
/**
* Flag if output should only contain the body of the article.
* Should be private.
*/
var $mArticleBodyOnly = false;
var $mNewSectionLink = false;
var $mHideNewSectionLink = false;
/**
* Comes from the parser. This was probably made to load CSS/JS only
* if we had "<gallery>". Used directly in CategoryPage.php
* Looks like resource loader can replace this.
*/
var $mNoGallery = false;
// should be private.
var $mPageTitleActionText = '';
var $mParseWarnings = array();
// Cache stuff. Looks like mEnableClientCache
var $mSquidMaxage = 0;
// @todo document
var $mPreventClickjacking = true;
/// should be private. To include the variable {{REVISIONID}}
var $mRevisionId = null;
private $mRevisionTimestamp = null;
var $mFileVersion = null;
/**
* 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 OpenSource amazing.
*/
var $styles = array();
/**
* Whether jQuery is already handled.
*/
protected $mJQueryDone = false;
private $mIndexPolicy = 'index';
private $mFollowPolicy = 'follow';
private $mVaryHeader = array(
'Accept-Encoding' => array( 'list-contains=gzip' ),
);
/**
* If the current page was reached through a redirect, $mRedirectedFrom contains the Title
* of the redirect.
*
* @var Title
*/
private $mRedirectedFrom = null;
/**
* Additional key => value data
*/
private $mProperties = array();
/**
* 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.
*/
function __construct( IContextSource $context = null ) {
if ( $context === null ) {
# Extensions should use `new RequestContext` instead of `new OutputPage` now.
wfDeprecated( __METHOD__, '1.18' );
} else {
$this->setContext( $context );
}
}
/**
* Redirect to $url rather than displaying the normal page
*
* @param string $url URL
* @param string $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 = $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 HTTP status code to send with the output.
*
* @param $statusCode Integer
*/
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 tag name
* @param string $val tag value
*/
function addMeta( $name, $val ) {
array_push( $this->mMetatags, array( $name, $val ) );
}
/**
* Add a keyword or a list of keywords in the page header
*
* @param string $text or array of strings
*/
function addKeyword( $text ) {
if( is_array( $text ) ) {
$this->mKeywords = array_merge( $this->mKeywords, $text );
} else {
array_push( $this->mKeywords, $text );
}
}
/**
* Add a new \<link\> tag to the page header.
*
* Note: use setCanonicalUrl() for rel=canonical.
*
* @param array $linkarr associative array of attributes.
*/
function addLink( $linkarr ) {
array_push( $this->mLinktags, $linkarr );
}
/**
* Add a new \<link\> with "rel" attribute set to "meta"
*
* @param array $linkarr associative array mapping attribute names to their
* values, both keys and values will be escaped, and the
* "rel" attribute will be automatically added
*/
function addMetadataLink( $linkarr ) {
$linkarr['rel'] = $this->getMetadataAttribute();
$this->addLink( $linkarr );
}
/**
* Set the URL to be used for the <link rel=canonical>. This should be used
* in preference to addLink(), to avoid duplicate link tags.
*/
function setCanonicalUrl( $url ) {
$this->mCanonicalUrl = $url;
}
/**
* Get the value of the "rel" attribute for metadata links
*
* @return String
*/
public function getMetadataAttribute() {
# note: buggy CC software only reads first "meta" link
static $haveMeta = false;
if ( $haveMeta ) {
return 'alternate meta';
} else {
$haveMeta = true;
return 'meta';
}
}
/**
* Add raw HTML to the list of scripts (including \<script\> tag, etc.)
*
* @param string $script raw HTML
*/
function addScript( $script ) {
$this->mScripts .= $script . "\n";
}
/**
* Register and add a stylesheet from an extension directory.
*
* @param string $url path to sheet. Provide either a full url (beginning
* with 'http', etc) or a relative path from the document root
* (beginning with '/'). Otherwise it behaves identically to
* addStyle() and draws from the /skins folder.
*/
public function addExtensionStyle( $url ) {
array_push( $this->mExtStyles, $url );
}
/**
* Get all styles added by extensions
*
* @return Array
*/
function getExtStyle() {
return $this->mExtStyles;
}
/**
* Add a JavaScript file out of skins/common, or a given relative path.
*
* @param string $file filename in skins/common or complete on-server path
* (/foo/bar.js)
* @param string $version style version of the file. Defaults to $wgStyleVersion
*/
public function addScriptFile( $file, $version = null ) {
global $wgStylePath, $wgStyleVersion;
// See if $file parameter is an absolute URL or begins with a slash
if( substr( $file, 0, 1 ) == '/' || preg_match( '#^[a-z]*://#i', $file ) ) {
$path = $file;
} else {
$path = "{$wgStylePath}/common/{$file}";
}
if ( is_null( $version ) )
$version = $wgStyleVersion;
$this->addScript( Html::linkedScript( wfAppendQuery( $path, $version ) ) );
}
/**
* Add a self-contained script tag with the given contents
*
* @param string $script JavaScript text, no "<script>" tags
*/
public function addInlineScript( $script ) {
$this->mScripts .= Html::inlineScript( "\n$script\n" ) . "\n";
}
/**
* Get all registered JS and CSS tags for the header.
*
* @return String
*/
function getScript() {
return $this->mScripts . $this->getHeadItems();
}
/**
* 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 $modules Array
* @param string $position if not null, only return modules with this position
* @param $type string
* @return Array
*/
protected function filterModules( $modules, $position = null, $type = ResourceLoaderModule::TYPE_COMBINED ) {
$resourceLoader = $this->getResourceLoader();
$filteredModules = array();
foreach( $modules as $val ) {
$module = $resourceLoader->getModule( $val );
if( $module instanceof ResourceLoaderModule
&& $module->getOrigin() <= $this->getAllowedModules( $type )
&& ( is_null( $position ) || $module->getPosition() == $position ) )
{
$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 $position if not null, only return modules with this position
* @param $param string
* @return Array of module names
*/
public function getModules( $filter = false, $position = null, $param = 'mModules' ) {
$modules = array_values( array_unique( $this->$param ) );
return $filter
? $this->filterModules( $modules, $position )
: $modules;
}
/**
* Add one or more modules recognized by the resource loader. Modules added
* through this function will be loaded by the resource loader when the
* page loads.
*
* @param $modules Mixed: module name (string) or array of module names
*/
public function addModules( $modules ) {
$this->mModules = array_merge( $this->mModules, (array)$modules );
}
/**
* Get the list of module JS to include on this page
*
* @param $filter
* @param $position
*
* @return array of module names
*/
public function getModuleScripts( $filter = false, $position = null ) {
return $this->getModules( $filter, $position, 'mModuleScripts' );
}
/**
* Add only JS of one or more modules recognized by the resource loader. Module
* scripts added through this function will be loaded by the resource loader when
* the page loads.
*
* @param $modules Mixed: module name (string) or array of module names
*/
public function addModuleScripts( $modules ) {
$this->mModuleScripts = array_merge( $this->mModuleScripts, (array)$modules );
}
/**
* Get the list of module CSS to include on this page
*
* @param $filter
* @param $position
*
* @return Array of module names
*/
public function getModuleStyles( $filter = false, $position = null ) {
return $this->getModules( $filter, $position, 'mModuleStyles' );
}
/**
* Add only CSS of one or more modules recognized by the resource loader.
*
* Module styles added through this function will be added using standard link CSS
* tags, rather than as a combined Javascript and CSS package. Thus, they will
* load when JavaScript is disabled (unless CSS also happens to be disabled).
*
* @param $modules Mixed: module name (string) or array of module names
*/
public function addModuleStyles( $modules ) {
$this->mModuleStyles = array_merge( $this->mModuleStyles, (array)$modules );
}
/**
* Get the list of module messages to include on this page
*
* @param $filter
* @param $position
*
* @return Array of module names
*/
public function getModuleMessages( $filter = false, $position = null ) {
return $this->getModules( $filter, $position, 'mModuleMessages' );
}
/**
* Add only messages of one or more modules recognized by the resource loader.
* Module messages added through this function will be loaded by the resource
* loader when the page loads.
*
* @param $modules Mixed: module name (string) or array of module names
*/
public function addModuleMessages( $modules ) {
$this->mModuleMessages = array_merge( $this->mModuleMessages, (array)$modules );
}
/**
* Get an array of head items
*
* @return Array
*/
function getHeadItemsArray() {
return $this->mHeadItems;
}
/**
* Get all header items in a string
*
* @return String
*/
function getHeadItems() {
$s = '';
foreach ( $this->mHeadItems as $item ) {
$s .= $item;
}
return $s;
}
/**
* Add or replace an header item to the output
*
* @param string $name item name
* @param string $value raw HTML
*/
public function addHeadItem( $name, $value ) {
$this->mHeadItems[$name] = $value;
}
/**
* Check if the header item $name is already set
*
* @param string $name item name
* @return Boolean
*/
public function hasHeadItem( $name ) {
return isset( $this->mHeadItems[$name] );
}
/**
* Set the value of the ETag HTTP header, only used if $wgUseETag is true
*
* @param string $tag value of "ETag" header
*/
function setETag( $tag ) {
$this->mETag = $tag;
}
/**
* 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 $only Boolean: 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 Boolean
*/
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 $name
* @return mixed: Property value or null if not found
*/
public function getProperty( $name ) {
if ( isset( $this->mProperties[$name] ) ) {
return $this->mProperties[$name];
} else {
return 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 $timestamp string
*
* @return Boolean: true iff cache-ok headers was sent.
*/
public function checkLastModified( $timestamp ) {
global $wgCachePages, $wgCacheEpoch;
if ( !$timestamp || $timestamp == '19700101000000' ) {
wfDebug( __METHOD__ . ": CACHE DISABLED, NO TIMESTAMP\n" );
return false;
}
if( !$wgCachePages ) {
wfDebug( __METHOD__ . ": CACHE DISABLED\n", false );
return false;
}
if( $this->getUser()->getOption( 'nocache' ) ) {
wfDebug( __METHOD__ . ": USER DISABLED CACHE\n", false );
return false;
}
$timestamp = wfTimestamp( TS_MW, $timestamp );
$modifiedTimes = array(
'page' => $timestamp,
'user' => $this->getUser()->getTouched(),
'epoch' => $wgCacheEpoch
);
wfRunHooks( 'OutputPageCheckLastModified', array( &$modifiedTimes ) );
$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\n", false );
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 );
wfSuppressWarnings(); // E_STRICT system time bitching
$clientHeaderTime = strtotime( $clientHeader );
wfRestoreWarnings();
if ( !$clientHeaderTime ) {
wfDebug( __METHOD__ . ": unable to parse the client's If-Modified-Since header: $clientHeader\n" );
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 ) . "\n", false );
wfDebug( __METHOD__ . ": effective Last-Modified: " .
wfTimestamp( TS_ISO_8601, $maxModified ) . "\n", false );
if( $clientHeaderTime < $maxModified ) {
wfDebug( __METHOD__ . ": STALE, $info\n", false );
return false;
}
# Not modified
# Give a 304 response code and disable body output
wfDebug( __METHOD__ . ": NOT MODIFIED, $info\n", false );
ini_set( 'zlib.output_compression', 0 );
$this->getRequest()->response()->header( "HTTP/1.1 304 Not Modified" );
$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.
wfClearOutputBuffers();
return true;
}
/**
* 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.
* @return null
*/
public function setRobotPolicy( $policy ) {
$policy = Article::formatRobotPolicy( $policy );
if( isset( $policy['index'] ) ) {
$this->setIndexPolicy( $policy['index'] );
}
if( isset( $policy['follow'] ) ) {
$this->setFollowPolicy( $policy['follow'] );
}
}
/**
* Set the index policy for the page, but leave the follow policy un-
* touched.
*
* @param string $policy Either 'index' or 'noindex'.
* @return null
*/
public function setIndexPolicy( $policy ) {
$policy = trim( $policy );
if( in_array( $policy, array( 'index', 'noindex' ) ) ) {
$this->mIndexPolicy = $policy;
}
}
/**
* Set the follow policy for the page, but leave the index policy un-
* touched.
*
* @param string $policy either 'follow' or 'nofollow'.
* @return null
*/
public function setFollowPolicy( $policy ) {
$policy = trim( $policy );
if( in_array( $policy, array( 'follow', 'nofollow' ) ) ) {
$this->mFollowPolicy = $policy;
}
}
/**
* Set the new value of the "action text", this will be added to the
* "HTML title", separated from it with " - ".
*
* @param string $text new value of the "action text"
*/
public function setPageTitleActionText( $text ) {
$this->mPageTitleActionText = $text;
}
/**
* Get the value of the "action text"
*
* @return String
*/
public function getPageTitleActionText() {
if ( isset( $this->mPageTitleActionText ) ) {
return $this->mPageTitleActionText;
}
return '';
}
/**
* "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 $name string
*/
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 Title of the page which redirected us to the current page.
*
* @param $t Title
*/
public function setRedirectedFrom( $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 $name string|Message
*/
public function setPageTitle( $name ) {
if ( $name instanceof Message ) {
$name = $name->setContext( $this->getContext() )->text();
}
# change "<script>foo&bar</script>" to "<script>foo&bar</script>"
# but leave "<i>foobar</i>" alone
$nameWithTags = Sanitizer::normalizeCharReferences( Sanitizer::removeHTMLtags( $name ) );
$this->mPagetitle = $nameWithTags;
# change "<i>foo&bar</i>" to "foo&bar"
$this->setHTMLTitle( $this->msg( 'pagetitle' )->rawParams( Sanitizer::stripAllTags( $nameWithTags ) ) );
}
/**
* Return the "page title", i.e. the content of the \<h1\> tag.
*
* @return String
*/
public function getPageTitle() {
return $this->mPagetitle;
}
/**
* Set the Title object to use
*
* @param $t Title object
*/
public function setTitle( Title $t ) {
$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
*
* @deprecated in 1.19; use addSubtitle() instead
* @param string|Message $str to add to the subtitle
*/
public function appendSubtitle( $str ) {
$this->addSubtitle( $str );
}
/**
* Add $str to the subtitle
*
* @param string|Message $str to add to the subtitle. String should be safe HTML.
*/
public function addSubtitle( $str ) {
if ( $str instanceof Message ) {
$this->mSubtitle[] = $str->setContext( $this->getContext() )->parse();
} else {
$this->mSubtitle[] = $str;
}
}
/**
* Add a subtitle containing a backlink to a page
*
* @param $title Title to link to
*/
public function addBacklinkSubtitle( Title $title ) {
$query = array();
if ( $title->isRedirect() ) {
$query['redirect'] = 'no';
}
$this->addSubtitle( $this->msg( 'backlinksubtitle' )->rawParams( Linker::link( $title, null, array(), $query ) ) );
}
/**
* Clear the subtitles
*/
public function clearSubtitle() {
$this->mSubtitle = array();
}
/**
* Get the subtitle
*
* @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 with all
* print styles included
*/
public function setPrintable() {
$this->mPrintable = true;
}
/**
* Return whether the page is "printable"
*
* @return Boolean
*/
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 Boolean
*/
public function isDisabled() {
return $this->mDoNothing;
}
/**
* Show an "add new section" link?
*
* @return Boolean
*/
public function showNewSectionLink() {
return $this->mNewSectionLink;
}
/**
* Forcibly hide the new section link?
*
* @return Boolean
*/
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 $show Boolean: true: add default feeds, false: remove all feeds
*/
public function setSyndicated( $show = true ) {
if ( $show ) {
$this->setFeedAppendQuery( false );
} else {
$this->mFeedLinks = array();
}
}
/**
* 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 $val query to append to feed links or false to output
* default links
*/
public function setFeedAppendQuery( $val ) {
global $wgAdvertisedFeedTypes;
$this->mFeedLinks = array();
foreach ( $wgAdvertisedFeedTypes 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 ) {
global $wgAdvertisedFeedTypes;
if ( in_array( $format, $wgAdvertisedFeedTypes ) ) {
$this->mFeedLinks[$format] = $href;
}
}
/**
* Should we output feed links for this page?
* @return Boolean
*/
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 $v Boolean
*/
public function setArticleFlag( $v ) {
$this->mIsarticle = $v;
if ( $v ) {
$this->mIsArticleRelated = $v;
}
}
/**
* Return whether the content displayed page is related to the source of
* the corresponding article on the wiki
*
* @return Boolean
*/
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 $v Boolean
*/
public function setArticleRelated( $v ) {
$this->mIsArticleRelated = $v;
if ( !$v ) {
$this->mIsarticle = false;
}
}
/**
* Return whether this page is related an article on the wiki
*
* @return Boolean
*/
public function isArticleRelated() {
return $this->mIsArticleRelated;
}
/**
* Add new language links
*
* @param array $newLinkArray Associative array mapping language code to the page
* name
*/
public function addLanguageLinks( $newLinkArray ) {
$this->mLanguageLinks += $newLinkArray;
}
/**
* Reset the language links and add new language links
*
* @param array $newLinkArray Associative array mapping language code to the page
* name
*/
public function setLanguageLinks( $newLinkArray ) {
$this->mLanguageLinks = $newLinkArray;
}
/**
* Get the list of language links
*
* @return 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( $categories ) {
global $wgContLang;
if ( !is_array( $categories ) || count( $categories ) == 0 ) {
return;
}
# Add the links to a LinkBatch
$arr = array( NS_CATEGORY => $categories );
$lb = new LinkBatch;
$lb->setArray( $arr );
# Fetch existence plus the hiddencat property
$dbr = wfGetDB( DB_SLAVE );
$res = $dbr->select( array( 'page', 'page_props' ),
array( 'page_id', 'page_namespace', 'page_title', 'page_len', 'page_is_redirect', 'page_latest', 'pp_value' ),
$lb->constructSet( 'page', $dbr ),
__METHOD__,
array(),
array( 'page_props' => array( 'LEFT JOIN', array( 'pp_propname' => 'hiddencat', 'pp_page = page_id' ) ) )
);
# Add the results to the link cache
$lb->addResultToCache( LinkCache::singleton(), $res );
# Set all the values to 'normal'. This can be done with array_fill_keys in PHP 5.2.0+
$categories = array_combine(
array_keys( $categories ),
array_fill( 0, count( $categories ), 'normal' )
);
# Mark hidden categories
foreach ( $res as $row ) {
if ( isset( $row->pp_value ) ) {
$categories[$row->page_title] = 'hidden';
}
}
# Add the remaining categories to the skin
if ( wfRunHooks( 'OutputPageMakeCategoryLinks', array( &$this, $categories, &$this->mCategoryLinks ) ) ) {
foreach ( $categories as $category => $type ) {
$origcategory = $category;
$title = Title::makeTitleSafe( NS_CATEGORY, $category );
$wgContLang->findVariantLink( $category, $title, true );
if ( $category != $origcategory ) {
if ( array_key_exists( $category, $categories ) ) {
continue;
}
}
$text = $wgContLang->convertHtml( $title->getText() );
$this->mCategories[] = $title->getText();
$this->mCategoryLinks[$type][] = Linker::link( $title, $text );
}
}
}
/**
* Reset the category links (but not the category list) and add $categories
*
* @param array $categories mapping category name => sort key
*/
public function setCategoryLinks( $categories ) {
$this->mCategoryLinks = array();
$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 Array
*/
public function getCategoryLinks() {
return $this->mCategoryLinks;
}
/**
* Get the list of category names this page belongs to
*
* @return Array of strings
*/
public function getCategories() {
return $this->mCategories;
}
/**
* 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.
*/
public function disallowUserJs() {
$this->reduceAllowedModules(
ResourceLoaderModule::TYPE_SCRIPTS,
ResourceLoaderModule::ORIGIN_CORE_INDIVIDUAL
);
}
/**
* Return whether user JavaScript is allowed for this page
* @deprecated since 1.18 Load modules with ResourceLoader, and origin and
* trustworthiness is identified and enforced automagically.
* Will be removed in 1.20.
* @return Boolean
*/
public function isUserJsAllowed() {
wfDeprecated( __METHOD__, '1.18' );
return $this->getAllowedModules( ResourceLoaderModule::TYPE_SCRIPTS ) >= ResourceLoaderModule::ORIGIN_USER_INDIVIDUAL;
}
/**
* Show what level of JavaScript / CSS untrustworthiness is allowed on this page
* @see ResourceLoaderModule::$origin
* @param string $type ResourceLoaderModule TYPE_ constant
* @return Int ResourceLoaderModule ORIGIN_ class constant
*/
public function getAllowedModules( $type ) {
if( $type == ResourceLoaderModule::TYPE_COMBINED ) {
return min( array_values( $this->mAllowedModules ) );
} else {
return isset( $this->mAllowedModules[$type] )
? $this->mAllowedModules[$type]
: ResourceLoaderModule::ORIGIN_ALL;
}
}
/**
* Set the highest level of CSS/JS untrustworthiness allowed
* @param $type String ResourceLoaderModule TYPE_ constant
* @param $level Int ResourceLoaderModule class constant
*/
public function setAllowedModules( $type, $level ) {
$this->mAllowedModules[$type] = $level;
}
/**
* As for setAllowedModules(), but don't inadvertently make the page more accessible
* @param $type String
* @param $level Int ResourceLoaderModule 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
*/
public function prependHTML( $text ) {
$this->mBodytext = $text . $this->mBodytext;
}
/**
* Append $text to the body HTML
*
* @param string $text HTML
*/
public function addHTML( $text ) {
$this->mBodytext .= $text;
}
/**
* Shortcut for adding an Html::element via addHTML.
*
* @since 1.19
*
* @param $element string
* @param $attribs array
* @param $contents string
*/
public function addElement( $element, $attribs = array(), $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
*
* @param $options ParserOptions|null either the ParserOption to use or null to only get the
* current ParserOption object
* @return ParserOptions object
*/
public function parserOptions( $options = null ) {
if ( !$this->mParserOptions ) {
$this->mParserOptions = ParserOptions::newFromContext( $this->getContext() );
$this->mParserOptions->setEditSection( false );
}
return wfSetVar( $this->mParserOptions, $options );
}
/**
* Set the revision ID which will be seen by the wiki text parser
* for things such as embedded {{REVISIONID}} variable use.
*
* @param $revid Mixed: an positive integer, or null
* @return Mixed: previous value
*/
public function setRevisionId( $revid ) {
$val = is_null( $revid ) ? null : intval( $revid );
return wfSetVar( $this->mRevisionId, $val );
}
/**
* Get the displayed revision ID
*
* @return Integer
*/
public function getRevisionId() {
return $this->mRevisionId;
}
/**
* Set the timestamp of the revision which will be displayed. This is used
* to avoid a extra DB call in Skin::lastModified().
*
* @param $timestamp Mixed: string, or null
* @return Mixed: previous value
*/
public function setRevisionTimestamp( $timestamp) {
return wfSetVar( $this->mRevisionTimestamp, $timestamp );
}
/**
* Get the timestamp of displayed revision.
* This will be null if not filled by setRevisionTimestamp().
*
* @return String or null
*/
public function getRevisionTimestamp() {
return $this->mRevisionTimestamp;
}
/**
* Set the displayed file version
*
* @param $file File|bool
* @return Mixed: previous value
*/
public function setFileVersion( $file ) {
$val = null;
if ( $file instanceof File && $file->exists() ) {
$val = array( '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 (namespace => dbKey => revId)
* @since 1.18
*/
public function getTemplateIds() {
return $this->mTemplateIds;
}
/**
* Get the files used on this page
*
* @return Array (dbKey => array('time' => MW timestamp or null, 'sha1' => sha1 or ''))
* @since 1.18
*/
public function getFileSearchOptions() {
return $this->mImageTimeKeys;
}
/**
* Convert wikitext to HTML and add it to the buffer
* Default assumes that the current page title will be used.
*
* @param $text String
* @param $linestart Boolean: is this the start of a line?
* @param $interface Boolean: is this text in the user interface language?
*/
public function addWikiText( $text, $linestart = true, $interface = true ) {
$title = $this->getTitle(); // Work around E_STRICT
if ( !$title ) {
throw new MWException( 'Title is null' );
}
$this->addWikiTextTitle( $text, $title, $linestart, /*tidy*/false, $interface );
}
/**
* Add wikitext with a custom Title object
*
* @param string $text wikitext
* @param $title Title object
* @param $linestart Boolean: is this the start of a line?
*/
public function addWikiTextWithTitle( $text, &$title, $linestart = true ) {
$this->addWikiTextTitle( $text, $title, $linestart );
}
/**
* Add wikitext with a custom Title object and tidy enabled.
*
* @param string $text wikitext
* @param $title Title object
* @param $linestart Boolean: is this the start of a line?
*/
function addWikiTextTitleTidy( $text, &$title, $linestart = true ) {
$this->addWikiTextTitle( $text, $title, $linestart, true );
}
/**
* Add wikitext with tidy enabled
*
* @param string $text wikitext
* @param $linestart Boolean: is this the start of a line?
*/
public function addWikiTextTidy( $text, $linestart = true ) {
$title = $this->getTitle();
$this->addWikiTextTitleTidy( $text, $title, $linestart );
}
/**
* Add wikitext with a custom Title object
*
* @param string $text wikitext
* @param $title Title object
* @param $linestart Boolean: is this the start of a line?
* @param $tidy Boolean: whether to use tidy
* @param $interface Boolean: whether it is an interface message
* (for example disables conversion)
*/
public function addWikiTextTitle( $text, Title $title, $linestart, $tidy = false, $interface = false ) {
global $wgParser;
wfProfileIn( __METHOD__ );
$popts = $this->parserOptions();
$oldTidy = $popts->setTidy( $tidy );
$popts->setInterfaceMessage( (bool) $interface );
$parserOutput = $wgParser->parse(
$text, $title, $popts,
$linestart, true, $this->mRevisionId
);
$popts->setTidy( $oldTidy );
$this->addParserOutput( $parserOutput );
wfProfileOut( __METHOD__ );
}
/**
* Add a ParserOutput object, but without Html
*
* @param $parserOutput ParserOutput object
*/
public function addParserOutputNoText( &$parserOutput ) {
$this->mLanguageLinks += $parserOutput->getLanguageLinks();
$this->addCategoryLinks( $parserOutput->getCategories() );
$this->mNewSectionLink = $parserOutput->getNewSection();
$this->mHideNewSectionLink = $parserOutput->getHideNewSection();
$this->mParseWarnings = $parserOutput->getWarnings();
if ( !$parserOutput->isCacheable() ) {
$this->enableClientCache( false );
}
$this->mNoGallery = $parserOutput->getNoGallery();
$this->mHeadItems = array_merge( $this->mHeadItems, $parserOutput->getHeadItems() );
$this->addModules( $parserOutput->getModules() );
$this->addModuleScripts( $parserOutput->getModuleScripts() );
$this->addModuleStyles( $parserOutput->getModuleStyles() );
$this->addModuleMessages( $parserOutput->getModuleMessages() );
// Template versioning...
foreach ( (array)$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;
}
// Hooks registered in the object
global $wgParserOutputHooks;
foreach ( $parserOutput->getOutputHooks() as $hookInfo ) {
list( $hookName, $data ) = $hookInfo;
if ( isset( $wgParserOutputHooks[$hookName] ) ) {
call_user_func( $wgParserOutputHooks[$hookName], $this, $parserOutput, $data );
}
}
wfRunHooks( 'OutputPageParserOutput', array( &$this, $parserOutput ) );
}
/**
* Add a ParserOutput object
*
* @param $parserOutput ParserOutput
*/
function addParserOutput( &$parserOutput ) {
$this->addParserOutputNoText( $parserOutput );
$text = $parserOutput->getText();
wfRunHooks( 'OutputPageBeforeHTML', array( &$this, &$text ) );
$this->addHTML( $text );
}
/**
* Add the output of a QuickTemplate to the output buffer
*
* @param $template QuickTemplate
*/
public function addTemplate( &$template ) {
ob_start();
$template->execute();
$this->addHTML( ob_get_contents() );
ob_end_clean();
}
/**
* Parse wikitext and return the HTML.
*
* @param $text String
* @param $linestart Boolean: is this the start of a line?
* @param $interface Boolean: use interface language ($wgLang instead of
* $wgContLang) while parsing language sensitive magic
* words like GRAMMAR and PLURAL. This also disables
* LanguageConverter.
* @param $language Language object: target language object, will override
* $interface
* @throws MWException
* @return String: HTML
*/
public function parse( $text, $linestart = true, $interface = false, $language = null ) {
global $wgParser;
if( is_null( $this->getTitle() ) ) {
throw new MWException( 'Empty $mTitle in ' . __METHOD__ );
}
$popts = $this->parserOptions();
if ( $interface ) {
$popts->setInterfaceMessage( true );
}
if ( $language !== null ) {
$oldLang = $popts->setTargetLanguage( $language );
}
$parserOutput = $wgParser->parse(
$text, $this->getTitle(), $popts,
$linestart, true, $this->mRevisionId
);
if ( $interface ) {
$popts->setInterfaceMessage( false );
}
if ( $language !== null ) {
$popts->setTargetLanguage( $oldLang );
}
return $parserOutput->getText();
}
/**
* Parse wikitext, strip paragraphs, and return the HTML.
*
* @param $text String
* @param $linestart Boolean: is this the start of a line?
* @param $interface Boolean: use interface language ($wgLang instead of
* $wgContLang) while parsing language sensitive magic
* words like GRAMMAR and PLURAL
* @return String: HTML
*/
public function parseInline( $text, $linestart = true, $interface = false ) {
$parsed = $this->parse( $text, $linestart, $interface );
$m = array();
if ( preg_match( '/^<p>(.*)\n?<\/p>\n?/sU', $parsed, $m ) ) {
$parsed = $m[1];
}
return $parsed;
}
/**
* Set the value of the "s-maxage" part of the "Cache-control" HTTP header
*
* @param $maxage Integer: maximum cache time on the Squid, in seconds.
*/
public function setSquidMaxage( $maxage ) {
$this->mSquidMaxage = $maxage;
}
/**
* Use enableClientCache(false) to force it to send nocache headers
*
* @param $state bool
*
* @return bool
*/
public function enableClientCache( $state ) {
return wfSetVar( $this->mEnableClientCache, $state );
}
/**
* Get the list of cookies that will influence on the cache
*
* @return Array
*/
function getCacheVaryCookies() {
global $wgCookiePrefix, $wgCacheVaryCookies;
static $cookies;
if ( $cookies === null ) {
$cookies = array_merge(
array(
"{$wgCookiePrefix}Token",
"{$wgCookiePrefix}LoggedOut",
session_name()
),
$wgCacheVaryCookies
);
wfRunHooks( 'GetCacheVaryCookies', array( $this, &$cookies ) );
}
return $cookies;
}
/**
* 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 Boolean
*/
function haveCacheVaryCookies() {
$cookieHeader = $this->getRequest()->getHeader( 'cookie' );
if ( $cookieHeader === false ) {
return false;
}
$cvCookies = $this->getCacheVaryCookies();
foreach ( $cvCookies as $cookieName ) {
# Check for a simple string match, like the way squid does it
if ( strpos( $cookieHeader, $cookieName ) !== false ) {
wfDebug( __METHOD__ . ": found $cookieName\n" );
return true;
}
}
wfDebug( __METHOD__ . ": no cache-varying cookies found\n" );
return false;
}
/**
* Add an HTTP header that will influence on the cache
*
* @param string $header header name
* @param $option Array|null
* @todo FIXME: Document the $option parameter; it appears to be for
* X-Vary-Options but what format is acceptable?
*/
public function addVaryHeader( $header, $option = null ) {
if ( !array_key_exists( $header, $this->mVaryHeader ) ) {
$this->mVaryHeader[$header] = (array)$option;
} elseif( is_array( $option ) ) {
if( is_array( $this->mVaryHeader[$header] ) ) {
$this->mVaryHeader[$header] = array_merge( $this->mVaryHeader[$header], $option );
} else {
$this->mVaryHeader[$header] = $option;
}
}
$this->mVaryHeader[$header] = array_unique( (array)$this->mVaryHeader[$header] );
}
/**
* 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() {
return 'Vary: ' . join( ', ', array_keys( $this->mVaryHeader ) );
}
/**
* Get a complete X-Vary-Options header
*
* @return String
*/
public function getXVO() {
$cvCookies = $this->getCacheVaryCookies();
$cookiesOption = array();
foreach ( $cvCookies as $cookieName ) {
$cookiesOption[] = 'string-contains=' . $cookieName;
}
$this->addVaryHeader( 'Cookie', $cookiesOption );
$headers = array();
foreach( $this->mVaryHeader as $header => $option ) {
$newheader = $header;
if ( is_array( $option ) && count( $option ) > 0 ) {
$newheader .= ';' . implode( ';', $option );
}
$headers[] = $newheader;
}
$xvo = 'X-Vary-Options: ' . implode( ',', $headers );
return $xvo;
}
/**
* bug 21672: Add Accept-Language to Vary and XVO headers
* if there's no 'variant' parameter existed in GET.
*
* For example:
* /w/index.php?title=Main_page should always be served; but
* /w/index.php?title=Main_page&variant=zh-cn should never be served.
*/
function addAcceptLanguage() {
$lang = $this->getTitle()->getPageLanguage();
if( !$this->getRequest()->getCheck( 'variant' ) && $lang->hasVariants() ) {
$variants = $lang->getVariants();
$aloption = array();
foreach ( $variants as $variant ) {
if( $variant === $lang->getCode() ) {
continue;
} else {
$aloption[] = 'string-contains=' . $variant;
// IE and some other browsers use BCP 47 standards in
// their Accept-Language header, like "zh-CN" or "zh-Hant".
// We should handle these too.
$variantBCP47 = wfBCP47( $variant );
if ( $variantBCP47 !== $variant ) {
$aloption[] = 'string-contains=' . $variantBCP47;
}
}
}
$this->addVaryHeader( 'Accept-Language', $aloption );
}
}
/**
* Set a flag which 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.
*
* @param $enable bool
*/
public function preventClickjacking( $enable = true ) {
$this->mPreventClickjacking = $enable;
}
/**
* Turn off frame-breaking. Alias for $this->preventClickjacking(false).
* This can be called from pages which do not contain any CSRF-protected
* HTML form.
*/
public function allowClickjacking() {
$this->mPreventClickjacking = false;
}
/**
* 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
*/
public function getFrameOptions() {
global $wgBreakFrames, $wgEditPageFrameOptions;
if ( $wgBreakFrames ) {
return 'DENY';
} elseif ( $this->mPreventClickjacking && $wgEditPageFrameOptions ) {
return $wgEditPageFrameOptions;
}
return false;
}
/**
* Send cache control HTTP headers
*/
public function sendCacheControl() {
global $wgUseSquid, $wgUseESI, $wgUseETag, $wgSquidMaxage, $wgUseXVO;
$response = $this->getRequest()->response();
if ( $wgUseETag && $this->mETag ) {
$response->header( "ETag: $this->mETag" );
}
$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 ( $wgUseXVO ) {
# Add an X-Vary-Options header for Squid with Wikimedia patches
$response->header( $this->getXVO() );
}
if( $this->mEnableClientCache ) {
if(
$wgUseSquid && session_id() == '' && !$this->isPrintable() &&
$this->mSquidMaxage != 0 && !$this->haveCacheVaryCookies()
)
{
if ( $wgUseESI ) {
# We'll purge the proxy cache explicitly, but require end user agents
# to revalidate against the proxy on each visit.
# Surrogate-Control controls our Squid, Cache-Control downstream caches
wfDebug( __METHOD__ . ": proxy caching with ESI; {$this->mLastModified} **\n", false );
# start with a shorter timeout for initial testing
# header( 'Surrogate-Control: max-age=2678400+2678400, content="ESI/1.0"');
$response->header( 'Surrogate-Control: max-age=' . $wgSquidMaxage . '+' . $this->mSquidMaxage . ', content="ESI/1.0"' );
$response->header( 'Cache-Control: s-maxage=0, must-revalidate, max-age=0' );
} else {
# We'll purge the proxy cache for anons explicitly, but require end user agents
# to revalidate against the proxy on each visit.
# IMPORTANT! The Squid needs to replace the Cache-Control header with
# Cache-Control: s-maxage=0, must-revalidate, max-age=0
wfDebug( __METHOD__ . ": local proxy caching; {$this->mLastModified} **\n", false );
# 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=' . $this->mSquidMaxage . ', must-revalidate, max-age=0' );
}
} else {
# We do want clients to cache if they can, but they *must* check for updates
# on revisiting the page.
wfDebug( __METHOD__ . ": private caching; {$this->mLastModified} **\n", false );
$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 **\n", false );
# 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' );
$response->header( 'Pragma: no-cache' );
}
}
/**
* Get the message associated with the HTTP response code $code
*
* @param $code Integer: status code
* @return String or null: message or null if $code is not in the list of
* messages
*
* @deprecated since 1.18 Use HttpStatus::getMessage() instead.
*/
public static function getStatusMessage( $code ) {
wfDeprecated( __METHOD__, '1.18' );
return HttpStatus::getMessage( $code );
}
/**
* Finally, all the text has been munged and accumulated into
* the object, let's actually output it:
*/
public function output() {
global $wgLanguageCode, $wgDebugRedirects, $wgMimeType, $wgVaryOnXFP;
if( $this->mDoNothing ) {
return;
}
wfProfileIn( __METHOD__ );
$response = $this->getRequest()->response();
if ( $this->mRedirect != '' ) {
# Standards require redirect URLs to be absolute
$this->mRedirect = wfExpandUrl( $this->mRedirect, PROTO_CURRENT );
$redirect = $this->mRedirect;
$code = $this->mRedirectCode;
if( wfRunHooks( "BeforePageRedirect", array( $this, &$redirect, &$code ) ) ) {
if( $code == '301' || $code == '303' ) {
if( !$wgDebugRedirects ) {
$message = HttpStatus::getMessage( $code );
$response->header( "HTTP/1.1 $code $message" );
}
$this->mLastModified = wfTimestamp( TS_RFC2822 );
}
if ( $wgVaryOnXFP ) {
$this->addVaryHeader( 'X-Forwarded-Proto' );
}
$this->sendCacheControl();
$response->header( "Content-Type: text/html; charset=utf-8" );
if( $wgDebugRedirects ) {
$url = htmlspecialchars( $redirect );
print "<html>\n<head>\n<title>Redirect</title>\n</head>\n<body>\n";
print "<p>Location: <a href=\"$url\">$url</a></p>\n";
print "</body>\n</html>\n";
} else {
$response->header( 'Location: ' . $redirect );
}
}
wfProfileOut( __METHOD__ );
return;
} elseif ( $this->mStatusCode ) {
$message = HttpStatus::getMessage( $this->mStatusCode );
if ( $message ) {
$response->header( 'HTTP/1.1 ' . $this->mStatusCode . ' ' . $message );
}
}
# Buffer output; final headers may depend on later processing
ob_start();
$response->header( "Content-type: $wgMimeType; charset=UTF-8" );
$response->header( 'Content-language: ' . $wgLanguageCode );
// Prevent framing, if requested
$frameOptions = $this->getFrameOptions();
if ( $frameOptions ) {
$response->header( "X-Frame-Options: $frameOptions" );
}
if ( $this->mArticleBodyOnly ) {
$this->out( $this->mBodytext );
} else {
$this->addDefaultModules();
$sk = $this->getSkin();
// Hook that allows last minute changes to the output page, e.g.
// adding of CSS or Javascript by extensions.
wfRunHooks( 'BeforePageDisplay', array( &$this, &$sk ) );
wfProfileIn( 'Output-skin' );
$sk->outputPage();
wfProfileOut( 'Output-skin' );
}
// This hook allows last minute changes to final overall output by modifying output buffer
wfRunHooks( 'AfterFinalPageOutput', array( $this ) );
$this->sendCacheControl();
ob_end_flush();
wfProfileOut( __METHOD__ );
}
/**
* Actually output something with print().
*
* @param string $ins the string to output
*/
public function out( $ins ) {
print $ins;
}
/**
* Produce a "user is blocked" page.
* @deprecated since 1.18
*/
function blockedPage() {
throw new UserBlockedError( $this->getUser()->mBlock );
}
/**
* 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 an custom HTML title (content of the "<title>" tag).
*
* @param string|Message $pageTitle will be passed directly to setPageTitle()
* @param string|Message $htmlTitle will be passed directly to setHTMLTitle();
* optional, if not passed the "<title>" attribute will be
* based on $pageTitle
*/
public function prepareErrorPage( $pageTitle, $htmlTitle = false ) {
$this->setPageTitle( $pageTitle );
if ( $htmlTitle !== false ) {
$this->setHTMLTitle( $htmlTitle );
}
$this->setRobotPolicy( 'noindex,nofollow' );
$this->setArticleRelated( false );
$this->enableClientCache( false );
$this->mRedirect = '';
$this->clearSubtitle();
$this->clearHTML();
}
/**
* Output a standard error page
*
* showErrorPage( 'titlemsg', 'pagetextmsg', array( 'param1', 'param2' ) );
* showErrorPage( 'titlemsg', $messageObject );
* showErrorPage( $titleMessageObj, $messageObject );
*
* @param $title Mixed: message key (string) for page title, or a Message object
* @param $msg Mixed: message key (string) for page text, or a Message object
* @param array $params message parameters; ignored if $msg is a Message object
*/
public function showErrorPage( $title, $msg, $params = array() ) {
if( !$title instanceof Message ) {
$title = $this->msg( $title );
}
$this->prepareErrorPage( $title );
if ( $msg instanceof Message ) {
$this->addHTML( $msg->parseAsBlock() );
} else {
$this->addWikiMsgArray( $msg, $params );
}
$this->returnToMain();
}
/**
* Output a standard permission error page
*
* @param array $errors error message keys
* @param string $action action that was denied or null if unknown
*/
public function showPermissionsErrorPage( $errors, $action = null ) {
// For some action (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
// 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, array( 'read', 'edit', 'createpage', 'createtalk', 'upload' ) )
&& $this->getUser()->isAnon() && count( $errors ) == 1 && isset( $errors[0][0] )
&& ( $errors[0][0] == 'badaccess-groups' || $errors[0][0] == 'badaccess-group0' )
&& ( User::groupHasPermission( 'user', $action )
|| User::groupHasPermission( 'autoconfirmed', $action ) )
) {
$displayReturnto = null;
# Due to bug 32276, 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::newFromURL( $request->getVal( '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 = array();
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 );
}
}
$loginLink = Linker::linkKnown(
SpecialPage::getTitleFor( 'Userlogin' ),
$this->msg( 'loginreqlink' )->escaped(),
array(),
$query
);
$this->prepareErrorPage( $this->msg( 'loginreqtitle' ) );
$this->addHTML( $this->msg( $msg )->rawParams( $loginLink )->parse() );
# Don't return to a page the user can't read otherwise
# we'll end up in a pointless loop
if ( $displayReturnto && $displayReturnto->userCan( 'read', $this->getUser() ) ) {
$this->returnToMain( null, $displayReturnto );
}
} else {
$this->prepareErrorPage( $this->msg( 'permissionserrors' ) );
$this->addWikiText( $this->formatPermissionsErrorMessage( $errors, $action ) );
}
}
/**
* Display an error page indicating that a given version of MediaWiki is
* required to use it
*
* @param $version Mixed: the version of MediaWiki needed to use the page
*/
public function versionRequired( $version ) {
$this->prepareErrorPage( $this->msg( 'versionrequired', $version ) );
$this->addWikiMsg( 'versionrequiredtext', $version );
$this->returnToMain();
}
/**
* Display an error page noting that a given permission bit is required.
* @deprecated since 1.18, just throw the exception directly
* @param string $permission key required
* @throws PermissionsError
*/
public function permissionRequired( $permission ) {
throw new PermissionsError( $permission );
}
/**
* Produce the stock "please login to use the wiki" page
*
* @deprecated in 1.19; throw the exception directly
*/
public function loginToUse() {
throw new PermissionsError( 'read' );
}
/**
* Format a list of error messages
*
* @param array $errors of arrays returned by Title::getUserPermissionsErrors
* @param string $action action that was denied or null if unknown
* @return String: the wikitext error-messages, formatted into a list.
*/
public function formatPermissionsErrorMessage( $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 .= call_user_func_array( array( $this, 'msg' ), $error )->plain();
$text .= "</li>\n";
}
$text .= '</ul>';
} else {
$text .= "<div class=\"permissions-errors\">\n" .
call_user_func_array( array( $this, 'msg' ), reset( $errors ) )->plain() .
"\n</div>";
}
return $text;
}
/**
* Display a page stating that the Wiki is in read-only mode,
* and optionally show the source of the page that the user
* was trying to edit. Should only be called (for this
* purpose) after wfReadOnly() has returned true.
*
* For historical reasons, this function is _also_ used to
* show the error message when a user tries to edit a page
* they are not allowed to edit. (Unless it's because they're
* blocked, then we show blockedPage() instead.) In this
* case, the second parameter should be set to true and a list
* of reasons supplied as the third parameter.
*
* @todo Needs to be split into multiple functions.
*
* @param $source String: source code to show (or null).
* @param $protected Boolean: is this a permissions error?
* @param $reasons Array: list of reasons for this error, as returned by Title::getUserPermissionsErrors().
* @param $action String: action that was denied or null if unknown
* @throws ReadOnlyError
*/
public function readOnlyPage( $source = null, $protected = false, $reasons = array(), $action = null ) {
$this->setRobotPolicy( 'noindex,nofollow' );
$this->setArticleRelated( false );
// If no reason is given, just supply a default "I can't let you do
// that, Dave" message. Should only occur if called by legacy code.
if ( $protected && empty( $reasons ) ) {
$reasons[] = array( 'badaccess-group0' );
}
if ( !empty( $reasons ) ) {
// Permissions error
if( $source ) {
$this->setPageTitle( $this->msg( 'viewsource-title', $this->getTitle()->getPrefixedText() ) );
$this->addBacklinkSubtitle( $this->getTitle() );
} else {
$this->setPageTitle( $this->msg( 'badaccess' ) );
}
$this->addWikiText( $this->formatPermissionsErrorMessage( $reasons, $action ) );
} else {
// Wiki is read only
throw new ReadOnlyError;
}
// Show source, if supplied
if( is_string( $source ) ) {
$this->addWikiMsg( 'viewsourcetext' );
$pageLang = $this->getTitle()->getPageLanguage();
$params = array(
'id' => 'wpTextbox1',
'name' => 'wpTextbox1',
'cols' => $this->getUser()->getOption( 'cols' ),
'rows' => $this->getUser()->getOption( 'rows' ),
'readonly' => 'readonly',
'lang' => $pageLang->getHtmlCode(),
'dir' => $pageLang->getDir(),
);
$this->addHTML( Html::element( 'textarea', $params, $source ) );
// Show templates used by this article
$templates = Linker::formatTemplates( $this->getTitle()->getTemplateLinksFrom() );
$this->addHTML( "<div class='templatesUsed'>
$templates
</div>
" );
}
# If the title doesn't exist, it's fairly pointless to print a return
# link to it. After all, you just tried editing it and couldn't, so
# what's there to do there?
if( $this->getTitle()->exists() ) {
$this->returnToMain( null, $this->getTitle() );
}
}
/**
* Turn off regular page output and return an error response
* for when rate limiting has triggered.
*/
public function rateLimited() {
throw new ThrottledError;
}
/**
* Show a warning about slave lag
*
* If the lag is higher than $wgSlaveLagCritical seconds,
* then the warning is a bit more obvious. If the lag is
* lower than $wgSlaveLagWarning, then no warning is shown.
*
* @param $lag Integer: slave lag
*/
public function showLagWarning( $lag ) {
global $wgSlaveLagWarning, $wgSlaveLagCritical;
if( $lag >= $wgSlaveLagWarning ) {
$message = $lag < $wgSlaveLagCritical
? 'lag-warn-normal'
: 'lag-warn-high';
$wrap = Html::rawElement( 'div', array( 'class' => "mw-{$message}" ), "\n$1\n" );
$this->wrapWikiMsg( "$wrap\n", array( $message, $this->getLanguage()->formatNum( $lag ) ) );
}
}
public function showFatalError( $message ) {
$this->prepareErrorPage( $this->msg( 'internalerror' ) );
$this->addHTML( $message );
}
public function showUnexpectedValueError( $name, $val ) {
$this->showFatalError( $this->msg( 'unexpected', $name, $val )->text() );
}
public function showFileCopyError( $old, $new ) {
$this->showFatalError( $this->msg( 'filecopyerror', $old, $new )->text() );
}
public function showFileRenameError( $old, $new ) {
$this->showFatalError( $this->msg( 'filerenameerror', $old, $new )->text() );
}
public function showFileDeleteError( $name ) {
$this->showFatalError( $this->msg( 'filedeleteerror', $name )->text() );
}
public function showFileNotFoundError( $name ) {
$this->showFatalError( $this->msg( 'filenotfound', $name )->text() );
}
/**
* Add a "return to" link pointing to a specified title
*
* @param $title Title to link
* @param array $query query string parameters
* @param string $text text of the link (input is not escaped)
* @param $options Options array to pass to Linker
*/
public function addReturnTo( $title, $query = array(), $text = null, $options = array() ) {
if( in_array( 'http', $options ) ) {
$proto = PROTO_HTTP;
} elseif( in_array( 'https', $options ) ) {
$proto = PROTO_HTTPS;
} else {
$proto = PROTO_RELATIVE;
}
$this->addLink( array( 'rel' => 'next', 'href' => $title->getFullURL( '', false, $proto ) ) );
$link = $this->msg( 'returnto' )->rawParams(
Linker::link( $title, $text, array(), $query, $options ) )->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 $unused
* @param $returnto Title or String to return to
* @param string $returntoquery query string for the return to link
*/
public function returnToMain( $unused = null, $returnto = null, $returntoquery = null ) {
if ( $returnto == null ) {
$returnto = $this->getRequest()->getText( 'returnto' );
}
if ( $returntoquery == null ) {
$returntoquery = $this->getRequest()->getText( 'returntoquery' );
}
if ( $returnto === '' ) {
$returnto = Title::newMainPage();
}
if ( is_object( $returnto ) ) {
$titleObj = $returnto;
} else {
$titleObj = Title::newFromText( $returnto );
}
if ( !is_object( $titleObj ) ) {
$titleObj = Title::newMainPage();
}
$this->addReturnTo( $titleObj, wfCgiToArray( $returntoquery ) );
}
/**
* @param $sk Skin The given Skin
* @param $includeStyle Boolean: unused
* @return String: The doctype, opening "<html>", and head element.
*/
public function headElement( Skin $sk, $includeStyle = true ) {
global $wgContLang;
$userdir = $this->getLanguage()->getDir();
$sitedir = $wgContLang->getDir();
if ( $sk->commonPrintStylesheet() ) {
$this->addModuleStyles( 'mediawiki.legacy.wikiprintable' );
}
$ret = Html::htmlHeader( array( 'lang' => $this->getLanguage()->getHtmlCode(), 'dir' => $userdir, 'class' => 'client-nojs' ) );
if ( $this->getHTMLTitle() == '' ) {
$this->setHTMLTitle( $this->msg( 'pagetitle', $this->getPageTitle() ) );
}
$openHead = Html::openElement( 'head' );
if ( $openHead ) {
# Don't bother with the newline if $head == ''
$ret .= "$openHead\n";
}
$ret .= Html::element( 'title', null, $this->getHTMLTitle() ) . "\n";
$ret .= implode( "\n", array(
$this->getHeadLinks( null, true ),
$this->buildCssLinks(),
$this->getHeadScripts(),
$this->getHeadItems()
) );
$closeHead = Html::closeElement( 'head' );
if ( $closeHead ) {
$ret .= "$closeHead\n";
}
$bodyAttrs = array();
# Classes for LTR/RTL directionality support
$bodyAttrs['class'] = "mediawiki $userdir sitedir-$sitedir";
if ( $this->getLanguage()->capitalizeAllNouns() ) {
# A <body> class is probably not the best way to do this . . .
$bodyAttrs['class'] .= ' capitalize-all-nouns';
}
$bodyAttrs['class'] .= ' ' . $sk->getPageClasses( $this->getTitle() );
$bodyAttrs['class'] .= ' skin-' . Sanitizer::escapeClass( $sk->getSkinName() );
$bodyAttrs['class'] .= ' action-' . Sanitizer::escapeClass( Action::getActionName( $this->getContext() ) );
$sk->addToBodyAttributes( $this, $bodyAttrs ); // Allow skins to add body attributes they need
wfRunHooks( 'OutputPageBodyAttributes', array( $this, $sk, &$bodyAttrs ) );
$ret .= Html::openElement( 'body', $bodyAttrs ) . "\n";
return $ret;
}
/**
* Add the default ResourceLoader modules to this object
*/
private function addDefaultModules() {
global $wgIncludeLegacyJavaScript, $wgPreloadJavaScriptMwUtil, $wgUseAjax,
$wgAjaxWatch, $wgResponsiveImages;
// Add base resources
$this->addModules( array(
'mediawiki.user',
'mediawiki.page.startup',
'mediawiki.page.ready',
) );
if ( $wgIncludeLegacyJavaScript ) {
$this->addModules( 'mediawiki.legacy.wikibits' );
}
if ( $wgPreloadJavaScriptMwUtil ) {
$this->addModules( 'mediawiki.util' );
}
MWDebug::addModules( $this );
// Add various resources if required
if ( $wgUseAjax ) {
$this->addModules( 'mediawiki.legacy.ajax' );
wfRunHooks( 'AjaxAddScript', array( &$this ) );
if( $wgAjaxWatch && $this->getUser()->isLoggedIn() ) {
$this->addModules( 'mediawiki.page.watch.ajax' );
}
if ( !$this->getUser()->getOption( 'disablesuggest', false ) ) {
$this->addModules( 'mediawiki.searchSuggest' );
}
}
if ( $this->getUser()->getBoolOption( 'editsectiononrightclick' ) ) {
$this->addModules( 'mediawiki.action.view.rightClickEdit' );
}
# Crazy edit-on-double-click stuff
if ( $this->isArticle() && $this->getUser()->getOption( 'editondblclick' ) ) {
$this->addModules( 'mediawiki.action.view.dblClickEdit' );
}
// Support for high-density display images
if ( $wgResponsiveImages ) {
$this->addModules( 'mediawiki.hidpi' );
}
}
/**
* Get a ResourceLoader object associated with this OutputPage
*
* @return ResourceLoader
*/
public function getResourceLoader() {
if ( is_null( $this->mResourceLoader ) ) {
$this->mResourceLoader = new ResourceLoader();
}
return $this->mResourceLoader;
}
/**
* TODO: Document
* @param $modules Array/string with the module name(s)
* @param string $only ResourceLoaderModule TYPE_ class constant
* @param $useESI boolean
* @param array $extraQuery with extra query parameters to add to each request. array( param => value )
* @param $loadCall boolean If true, output an (asynchronous) mw.loader.load() call rather than a "<script src='...'>" tag
* @return string html "<script>" and "<style>" tags
*/
protected function makeResourceLoaderLink( $modules, $only, $useESI = false, array $extraQuery = array(), $loadCall = false ) {
global $wgResourceLoaderUseESI;
$modules = (array) $modules;
if ( !count( $modules ) ) {
return '';
}
if ( count( $modules ) > 1 ) {
// Remove duplicate module requests
$modules = array_unique( $modules );
// Sort module names so requests are more uniform
sort( $modules );
if ( ResourceLoader::inDebugMode() ) {
// Recursively call us for every item
$links = '';
foreach ( $modules as $name ) {
$links .= $this->makeResourceLoaderLink( $name, $only, $useESI );
}
return $links;
}
}
// Create keyed-by-group list of module objects from modules list
$groups = array();
$resourceLoader = $this->getResourceLoader();
foreach ( $modules as $name ) {
$module = $resourceLoader->getModule( $name );
# Check that we're allowed to include this module on this page
if ( !$module
|| ( $module->getOrigin() > $this->getAllowedModules( ResourceLoaderModule::TYPE_SCRIPTS )
&& $only == ResourceLoaderModule::TYPE_SCRIPTS )
|| ( $module->getOrigin() > $this->getAllowedModules( ResourceLoaderModule::TYPE_STYLES )
&& $only == ResourceLoaderModule::TYPE_STYLES )
)
{
continue;
}
$group = $module->getGroup();
if ( !isset( $groups[$group] ) ) {
$groups[$group] = array();
}
$groups[$group][$name] = $module;
}
$links = '';
foreach ( $groups as $group => $grpModules ) {
// Special handling for user-specific groups
$user = null;
if ( ( $group === 'user' || $group === 'private' ) && $this->getUser()->isLoggedIn() ) {
$user = $this->getUser()->getName();
}
// Create a fake request based on the one we are about to make so modules return
// correct timestamp and emptiness data
$query = ResourceLoader::makeLoaderQuery(
array(), // modules; not determined yet
$this->getLanguage()->getCode(),
$this->getSkin()->getSkinName(),
$user,
null, // version; not determined yet
ResourceLoader::inDebugMode(),
$only === ResourceLoaderModule::TYPE_COMBINED ? null : $only,
$this->isPrintable(),
$this->getRequest()->getBool( 'handheld' ),
$extraQuery
);
$context = new ResourceLoaderContext( $resourceLoader, new FauxRequest( $query ) );
// Extract modules that know they're empty
$emptyModules = array ();
foreach ( $grpModules as $key => $module ) {
if ( $module->isKnownEmpty( $context ) ) {
$emptyModules[$key] = 'ready';
unset( $grpModules[$key] );
}
}
// Inline empty modules: since they're empty, just mark them as 'ready'
if ( count( $emptyModules ) > 0 && $only !== ResourceLoaderModule::TYPE_STYLES ) {
// If we're only getting the styles, we don't need to do anything for empty modules.
$links .= Html::inlineScript(
ResourceLoader::makeLoaderConditionalScript(
ResourceLoader::makeLoaderStateScript( $emptyModules )
)
) . "\n";
}
// If there are no modules left, skip this group
if ( count( $grpModules ) === 0 ) {
continue;
}
// Inline private modules. These can't be loaded through load.php for security
// reasons, see bug 34907. Note that these modules should be loaded from
// getHeadScripts() before the first loader call. Otherwise other modules can't
// properly use them as dependencies (bug 30914)
if ( $group === 'private' ) {
if ( $only == ResourceLoaderModule::TYPE_STYLES ) {
$links .= Html::inlineStyle(
$resourceLoader->makeModuleResponse( $context, $grpModules )
);
} else {
$links .= Html::inlineScript(
ResourceLoader::makeLoaderConditionalScript(
$resourceLoader->makeModuleResponse( $context, $grpModules )
)
);
}
$links .= "\n";
continue;
}
// Special handling for the user group; because users might change their stuff
// on-wiki like user pages, or user preferences; we need to find the highest
// timestamp of these user-changeable modules so we can ensure cache misses on change
// This should NOT be done for the site group (bug 27564) because anons get that too
// and we shouldn't be putting timestamps in Squid-cached HTML
$version = null;
if ( $group === 'user' ) {
// Get the maximum timestamp
$timestamp = 1;
foreach ( $grpModules as $module ) {
$timestamp = max( $timestamp, $module->getModifiedTime( $context ) );
}
// Add a version parameter so cache will break when things change
$version = wfTimestamp( TS_ISO_8601_BASIC, $timestamp );
}
$url = ResourceLoader::makeLoaderURL(
array_keys( $grpModules ),
$this->getLanguage()->getCode(),
$this->getSkin()->getSkinName(),
$user,
$version,
ResourceLoader::inDebugMode(),
$only === ResourceLoaderModule::TYPE_COMBINED ? null : $only,
$this->isPrintable(),
$this->getRequest()->getBool( 'handheld' ),
$extraQuery
);
if ( $useESI && $wgResourceLoaderUseESI ) {
$esi = Xml::element( 'esi:include', array( 'src' => $url ) );
if ( $only == ResourceLoaderModule::TYPE_STYLES ) {
$link = Html::inlineStyle( $esi );
} else {
$link = Html::inlineScript( $esi );
}
} else {
// Automatically select style/script elements
if ( $only === ResourceLoaderModule::TYPE_STYLES ) {
$link = Html::linkedStyle( $url );
} else if ( $loadCall ) {
$link = Html::inlineScript(
ResourceLoader::makeLoaderConditionalScript(
Xml::encodeJsCall( 'mw.loader.load', array( $url, 'text/javascript', true ) )
)
);
} else {
$link = Html::linkedScript( $url );
}
}
if( $group == 'noscript' ) {
$links .= Html::rawElement( 'noscript', array(), $link ) . "\n";
} else {
$links .= $link . "\n";
}
}
return $links;
}
/**
* JS stuff to put in the "<head>". This is the startup module, config
* vars and modules marked with position 'top'
*
* @return String: HTML fragment
*/
function getHeadScripts() {
global $wgResourceLoaderExperimentalAsyncLoading;
// Startup - this will immediately load jquery and mediawiki modules
$scripts = $this->makeResourceLoaderLink( 'startup', ResourceLoaderModule::TYPE_SCRIPTS, true );
// Load config before anything else
$scripts .= Html::inlineScript(
ResourceLoader::makeLoaderConditionalScript(
ResourceLoader::makeConfigSetScript( $this->getJSVars() )
)
);
// Load embeddable private modules before any loader links
// This needs to be TYPE_COMBINED so these modules are properly wrapped
// in mw.loader.implement() calls and deferred until mw.user is available
$embedScripts = array( 'user.options', 'user.tokens' );
$scripts .= $this->makeResourceLoaderLink( $embedScripts, ResourceLoaderModule::TYPE_COMBINED );
// Script and Messages "only" requests marked for top inclusion
// Messages should go first
$scripts .= $this->makeResourceLoaderLink( $this->getModuleMessages( true, 'top' ), ResourceLoaderModule::TYPE_MESSAGES );
$scripts .= $this->makeResourceLoaderLink( $this->getModuleScripts( true, 'top' ), ResourceLoaderModule::TYPE_SCRIPTS );
// Modules requests - let the client calculate dependencies and batch requests as it likes
// Only load modules that have marked themselves for loading at the top
$modules = $this->getModules( true, 'top' );
if ( $modules ) {
$scripts .= Html::inlineScript(
ResourceLoader::makeLoaderConditionalScript(
Xml::encodeJsCall( 'mw.loader.load', array( $modules ) )
)
);
}
if ( $wgResourceLoaderExperimentalAsyncLoading ) {
$scripts .= $this->getScriptsForBottomQueue( true );
}
return $scripts;
}
/**
* JS stuff to put at the 'bottom', which can either be the bottom of the "<body>"
* or the bottom of the "<head>" depending on $wgResourceLoaderExperimentalAsyncLoading:
* modules marked with position 'bottom', legacy scripts ($this->mScripts),
* user preferences, site JS and user JS
*
* @param $inHead boolean If true, this HTML goes into the "<head>", if false it goes into the "<body>"
* @return string
*/
function getScriptsForBottomQueue( $inHead ) {
global $wgUseSiteJs, $wgAllowUserJs;
// Script and Messages "only" requests marked for bottom inclusion
// If we're in the <head>, use load() calls rather than <script src="..."> tags
// Messages should go first
$scripts = $this->makeResourceLoaderLink( $this->getModuleMessages( true, 'bottom' ),
ResourceLoaderModule::TYPE_MESSAGES, /* $useESI = */ false, /* $extraQuery = */ array(),
/* $loadCall = */ $inHead
);
$scripts .= $this->makeResourceLoaderLink( $this->getModuleScripts( true, 'bottom' ),
ResourceLoaderModule::TYPE_SCRIPTS, /* $useESI = */ false, /* $extraQuery = */ array(),
/* $loadCall = */ $inHead
);
// Modules requests - let the client calculate dependencies and batch requests as it likes
// Only load modules that have marked themselves for loading at the bottom
$modules = $this->getModules( true, 'bottom' );
if ( $modules ) {
$scripts .= Html::inlineScript(
ResourceLoader::makeLoaderConditionalScript(
Xml::encodeJsCall( 'mw.loader.load', array( $modules, null, true ) )
)
);
}
// Legacy Scripts
$scripts .= "\n" . $this->mScripts;
$defaultModules = array();
// Add site JS if enabled
if ( $wgUseSiteJs ) {
$scripts .= $this->makeResourceLoaderLink( 'site', ResourceLoaderModule::TYPE_SCRIPTS,
/* $useESI = */ false, /* $extraQuery = */ array(), /* $loadCall = */ $inHead
);
$defaultModules['site'] = 'loading';
} else {
// The wiki is configured to not allow a site module.
$defaultModules['site'] = 'missing';
}
// Add user JS if enabled
if ( $wgAllowUserJs ) {
if ( $this->getUser()->isLoggedIn() ) {
if( $this->getTitle() && $this->getTitle()->isJsSubpage() && $this->userCanPreview() ) {
# XXX: additional security check/prompt?
// We're on a preview of a JS subpage
// Exclude this page from the user module in case it's in there (bug 26283)
$scripts .= $this->makeResourceLoaderLink( 'user', ResourceLoaderModule::TYPE_SCRIPTS, false,
array( 'excludepage' => $this->getTitle()->getPrefixedDBkey() ), $inHead
);
// Load the previewed JS
$scripts .= Html::inlineScript( "\n" . $this->getRequest()->getText( 'wpTextbox1' ) . "\n" ) . "\n";
// FIXME: If the user is previewing, say, ./vector.js, his ./common.js will be loaded
// asynchronously and may arrive *after* the inline script here. So the previewed code
// may execute before ./common.js runs. Normally, ./common.js runs before ./vector.js...
} else {
// Include the user module normally, i.e., raw to avoid it being wrapped in a closure.
$scripts .= $this->makeResourceLoaderLink( 'user', ResourceLoaderModule::TYPE_SCRIPTS,
/* $useESI = */ false, /* $extraQuery = */ array(), /* $loadCall = */ $inHead
);
}
$defaultModules['user'] = 'loading';
} else {
// Non-logged-in users have no user module. Treat it as empty and 'ready' to avoid
// blocking default gadgets that might depend on it. Although arguably default-enabled
// gadgets should not depend on the user module, it's harmless and less error-prone to
// handle this case.
$defaultModules['user'] = 'ready';
}
} else {
// User JS disabled
$defaultModules['user'] = 'missing';
}
// Group JS is only enabled if site JS is enabled.
if ( $wgUseSiteJs ) {
if ( $this->getUser()->isLoggedIn() ) {
$scripts .= $this->makeResourceLoaderLink( 'user.groups', ResourceLoaderModule::TYPE_COMBINED,
/* $useESI = */ false, /* $extraQuery = */ array(), /* $loadCall = */ $inHead
);
$defaultModules['user.groups'] = 'loading';
} else {
// Non-logged-in users have no user.groups module. Treat it as empty and 'ready' to
// avoid blocking gadgets that might depend upon the module.
$defaultModules['user.groups'] = 'ready';
}
} else {
// Site (and group JS) disabled
$defaultModules['user.groups'] = 'missing';
}
$loaderInit = '';
if ( $inHead ) {
// We generate loader calls anyway, so no need to fix the client-side loader's state to 'loading'.
foreach ( $defaultModules as $m => $state ) {
if ( $state == 'loading' ) {
unset( $defaultModules[$m] );
}
}
}
if ( count( $defaultModules ) > 0 ) {
$loaderInit = Html::inlineScript(
ResourceLoader::makeLoaderConditionalScript(
ResourceLoader::makeLoaderStateScript( $defaultModules )
)
) . "\n";
}
return $loaderInit . $scripts;
}
/**
* JS stuff to put at the bottom of the "<body>"
* @return string
*/
function getBottomScripts() {
global $wgResourceLoaderExperimentalAsyncLoading;
if ( !$wgResourceLoaderExperimentalAsyncLoading ) {
return $this->getScriptsForBottomQueue( false );
} else {
return '';
}
}
/**
* Add one or more variables to be set in mw.config in JavaScript.
*
* @param $keys {String|Array} Key or array of key/value pairs.
* @param $value {Mixed} [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 CALL THIS FROM OUTSIDE OF THIS CLASS OR Skin::makeGlobalVariablesScript().
* This is only public until that function is removed. You have been warned.
*
* Do not add things here which can be evaluated in ResourceLoaderStartUpModule
* - in other words, page-independent/site-wide variables (without state).
* You will only be adding bloat to the html page and causing page caches to
* have to be purged on configuration changes.
* @return array
*/
public function getJSVars() {
global $wgContLang;
$latestRevID = 0;
$pageID = 0;
$canonicalName = false; # bug 21115
$title = $this->getTitle();
$ns = $title->getNamespace();
$nsname = MWNamespace::exists( $ns ) ? MWNamespace::getCanonicalName( $ns ) : $title->getNsText();
// Get the relevant title so that AJAX features can use the correct page name
// when making API requests from certain special pages (bug 34972).
$relevantTitle = $this->getSkin()->getRelevantTitle();
if ( $ns == NS_SPECIAL ) {
list( $canonicalName, /*...*/ ) = SpecialPageFactory::resolveAlias( $title->getDBkey() );
} elseif ( $this->canUseWikiPage() ) {
$wikiPage = $this->getWikiPage();
$latestRevID = $wikiPage->getLatest();
$pageID = $wikiPage->getId();
}
$lang = $title->getPageLanguage();
// Pre-process information
$separatorTransTable = $lang->separatorTransformTable();
$separatorTransTable = $separatorTransTable ? $separatorTransTable : array();
$compactSeparatorTransTable = array(
implode( "\t", array_keys( $separatorTransTable ) ),
implode( "\t", $separatorTransTable ),
);
$digitTransTable = $lang->digitTransformTable();
$digitTransTable = $digitTransTable ? $digitTransTable : array();
$compactDigitTransTable = array(
implode( "\t", array_keys( $digitTransTable ) ),
implode( "\t", $digitTransTable ),
);
$user = $this->getUser();
$vars = array(
'wgCanonicalNamespace' => $nsname,
'wgCanonicalSpecialPageName' => $canonicalName,
'wgNamespaceNumber' => $title->getNamespace(),
'wgPageName' => $title->getPrefixedDBkey(),
'wgTitle' => $title->getText(),
'wgCurRevisionId' => $latestRevID,
'wgArticleId' => $pageID,
'wgIsArticle' => $this->isArticle(),
'wgAction' => Action::getActionName( $this->getContext() ),
'wgUserName' => $user->isAnon() ? null : $user->getName(),
'wgUserGroups' => $user->getEffectiveGroups(),
'wgCategories' => $this->getCategories(),
'wgBreakFrames' => $this->getFrameOptions() == 'DENY',
'wgPageContentLanguage' => $lang->getCode(),
'wgSeparatorTransformTable' => $compactSeparatorTransTable,
'wgDigitTransformTable' => $compactDigitTransTable,
'wgDefaultDateFormat' => $lang->getDefaultDateFormat(),
'wgMonthNames' => $lang->getMonthNamesArray(),
'wgMonthNamesShort' => $lang->getMonthAbbreviationsArray(),
'wgRelevantPageName' => $relevantTitle->getPrefixedDBkey(),
);
if ( $user->isLoggedIn() ) {
$vars['wgUserId'] = $user->getId();
$vars['wgUserEditCount'] = $user->getEditCount();
$userReg = wfTimestampOrNull( TS_UNIX, $user->getRegistration() );
$vars['wgUserRegistration'] = $userReg !== null ? ( $userReg * 1000 ) : null;
}
if ( $wgContLang->hasVariants() ) {
$vars['wgUserVariant'] = $wgContLang->getPreferredVariant();
}
foreach ( $title->getRestrictionTypes() as $type ) {
$vars['wgRestriction' . ucfirst( $type )] = $title->getRestrictions( $type );
}
if ( $title->isMainPage() ) {
$vars['wgIsMainPage'] = true;
}
if ( $this->mRedirectedFrom ) {
$vars['wgRedirectedFrom'] = $this->mRedirectedFrom->getPrefixedDBkey();
}
// Allow extensions to add their custom variables to the mw.config map.
// Use the 'ResourceLoaderGetConfigVars' hook if the variable is not
// page-dependant but site-wide (without state).
// Alternatively, you may want to use OutputPage->addJsConfigVars() instead.
wfRunHooks( 'MakeGlobalVariablesScript', array( &$vars, $this ) );
// Merge in variables from addJsConfigVars last
return array_merge( $vars, $this->mJsConfigVars );
}
/**
* To make it harder for someone to slip a user a fake
* user-JavaScript or user-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() {
if ( $this->getRequest()->getVal( 'action' ) != 'submit'
|| !$this->getRequest()->wasPosted()
|| !$this->getUser()->matchEditToken(
$this->getRequest()->getVal( 'wpEditToken' ) )
) {
return false;
}
if ( !$this->getTitle()->isJsSubpage() && !$this->getTitle()->isCssSubpage() ) {
return false;
}
return !count( $this->getTitle()->getUserPermissionsErrors( 'edit', $this->getUser() ) );
}
/**
* @param bool $addContentType Whether "<meta>" specifying content type should be returned
*
* @return array in format "link name or number => 'link html'".
*/
public function getHeadLinksArray( $addContentType = false ) {
global $wgUniversalEditButton, $wgFavicon, $wgAppleTouchIcon, $wgEnableAPI,
$wgSitename, $wgVersion, $wgHtml5, $wgMimeType,
$wgFeed, $wgOverrideSiteFeed, $wgAdvertisedFeedTypes,
$wgDisableLangConversion, $wgCanonicalLanguageLinks,
$wgRightsPage, $wgRightsUrl;
$tags = array();
$canonicalUrl = $this->mCanonicalUrl;
if ( $addContentType ) {
if ( $wgHtml5 ) {
# More succinct than <meta http-equiv=Content-Type>, has the
# same effect
$tags['meta-charset'] = Html::element( 'meta', array( 'charset' => 'UTF-8' ) );
} else {
$tags['meta-content-type'] = Html::element( 'meta', array(
'http-equiv' => 'Content-Type',
'content' => "$wgMimeType; charset=UTF-8"
) );
$tags['meta-content-style-type'] = Html::element( 'meta', array( // bug 15835
'http-equiv' => 'Content-Style-Type',
'content' => 'text/css'
) );
}
}
$tags['meta-generator'] = Html::element( 'meta', array(
'name' => 'generator',
'content' => "MediaWiki $wgVersion",
) );
$p = "{$this->mIndexPolicy},{$this->mFollowPolicy}";
if( $p !== 'index,follow' ) {
// 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', array(
'name' => 'robots',
'content' => $p,
) );
}
if ( count( $this->mKeywords ) > 0 ) {
$strip = array(
"/<.*?" . ">/" => '',
"/_/" => ' '
);
$tags['meta-keywords'] = Html::element( 'meta', array(
'name' => 'keywords',
'content' => preg_replace(
array_keys( $strip ),
array_values( $strip ),
implode( ',', $this->mKeywords )
)
) );
}
foreach ( $this->mMetatags as $tag ) {
if ( 0 == strcasecmp( 'http:', substr( $tag[0], 0, 5 ) ) ) {
$a = 'http-equiv';
$tag[0] = substr( $tag[0], 5 );
} else {
$a = 'name';
}
$tagName = "meta-{$tag[0]}";
if ( isset( $tags[$tagName] ) ) {
$tagName .= $tag[1];
}
$tags[$tagName] = Html::element( 'meta',
array(
$a => $tag[0],
'content' => $tag[1]
)
);
}
foreach ( $this->mLinktags as $tag ) {
$tags[] = Html::element( 'link', $tag );
}
# Universal edit button
if ( $wgUniversalEditButton && $this->isArticleRelated() ) {
$user = $this->getUser();
if ( $this->getTitle()->quickUserCan( 'edit', $user )
&& ( $this->getTitle()->exists() || $this->getTitle()->quickUserCan( 'create', $user ) ) ) {
// Original UniversalEditButton
$msg = $this->msg( 'edit' )->text();
$tags['universal-edit-button'] = Html::element( 'link', array(
'rel' => 'alternate',
'type' => 'application/x-wiki',
'title' => $msg,
'href' => $this->getTitle()->getLocalURL( 'action=edit' )
) );
// Alternate edit link
$tags['alternative-edit'] = Html::element( 'link', array(
'rel' => 'edit',
'title' => $msg,
'href' => $this->getTitle()->getLocalURL( 'action=edit' )
) );
}
}
# 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 ( $wgAppleTouchIcon !== false ) {
$tags['apple-touch-icon'] = Html::element( 'link', array( 'rel' => 'apple-touch-icon', 'href' => $wgAppleTouchIcon ) );
}
if ( $wgFavicon !== false ) {
$tags['favicon'] = Html::element( 'link', array( 'rel' => 'shortcut icon', 'href' => $wgFavicon ) );
}
# OpenSearch description link
$tags['opensearch'] = Html::element( 'link', array(
'rel' => 'search',
'type' => 'application/opensearchdescription+xml',
'href' => wfScript( 'opensearch_desc' ),
'title' => $this->msg( 'opensearch-desc' )->inContentLanguage()->text(),
) );
if ( $wgEnableAPI ) {
# 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', array(
'rel' => 'EditURI',
'type' => 'application/rsd+xml',
// Output a protocol-relative URL here if $wgServer is protocol-relative
// Whether RSD accepts relative or protocol-relative URLs is completely undocumented, though
'href' => wfExpandUrl( wfAppendQuery( wfScript( 'api' ), array( 'action' => 'rsd' ) ), PROTO_RELATIVE ),
) );
}
# Language variants
if ( !$wgDisableLangConversion && $wgCanonicalLanguageLinks ) {
$lang = $this->getTitle()->getPageLanguage();
if ( $lang->hasVariants() ) {
$urlvar = $lang->getURLVariant();
if ( !$urlvar ) {
$variants = $lang->getVariants();
foreach ( $variants as $_v ) {
$tags["variant-$_v"] = Html::element( 'link', array(
'rel' => 'alternate',
'hreflang' => $_v,
'href' => $this->getTitle()->getLocalURL( array( 'variant' => $_v ) ) )
);
}
} else {
$canonicalUrl = $this->getTitle()->getLocalURL();
}
}
}
# Copyright
$copyright = '';
if ( $wgRightsPage ) {
$copy = Title::newFromText( $wgRightsPage );
if ( $copy ) {
$copyright = $copy->getLocalURL();
}
}
if ( !$copyright && $wgRightsUrl ) {
$copyright = $wgRightsUrl;
}
if ( $copyright ) {
$tags['copyright'] = Html::element( 'link', array(
'rel' => 'copyright',
'href' => $copyright )
);
}
# Feeds
if ( $wgFeed ) {
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.
$tags[] = $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.
if ( $wgOverrideSiteFeed ) {
foreach ( $wgOverrideSiteFeed as $type => $feedUrl ) {
// Note, this->feedLink escapes the url.
$tags[] = $this->feedLink(
$type,
$feedUrl,
$this->msg( "site-{$type}-feed", $wgSitename )->text()
);
}
} elseif ( !$this->getTitle()->isSpecial( 'Recentchanges' ) ) {
$rctitle = SpecialPage::getTitleFor( 'Recentchanges' );
foreach ( $wgAdvertisedFeedTypes as $format ) {
$tags[] = $this->feedLink(
$format,
$rctitle->getLocalURL( "feed={$format}" ),
$this->msg( "site-{$format}-feed", $wgSitename )->text() # For grep: 'site-rss-feed', 'site-atom-feed'.
);
}
}
}
# Canonical URL
global $wgEnableCanonicalServerLink;
if ( $wgEnableCanonicalServerLink ) {
if ( $canonicalUrl !== false ) {
$canonicalUrl = wfExpandUrl( $canonicalUrl, PROTO_CANONICAL );
} else {
$reqUrl = $this->getRequest()->getRequestURL();
$canonicalUrl = wfExpandUrl( $reqUrl, PROTO_CANONICAL );
}
}
if ( $canonicalUrl !== false ) {
$tags[] = Html::element( 'link', array(
'rel' => 'canonical',
'href' => $canonicalUrl
) );
}
return $tags;
}
/**
* @param $unused
* @param bool $addContentType Whether "<meta>" specifying content type should be returned
*
* @return string HTML tag links to be put in the header.
*/
public function getHeadLinks( $unused = null, $addContentType = false ) {
return implode( "\n", $this->getHeadLinksArray( $addContentType ) );
}
/**
* 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, $text ) {
return Html::element( 'link', array(
'rel' => 'alternate',
'type' => "application/$type+xml",
'title' => $text,
'href' => $url )
);
}
/**
* Add a local or specified stylesheet, with the given media options.
* Meant primarily for internal use...
*
* @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 = array();
// Even though we expect the media type to be lowercase, but here we
// force it to lowercase to be safe.
if( $media ) {
$options['media'] = $media;
}
if( $condition ) {
$options['condition'] = $condition;
}
if( $dir ) {
$options['dir'] = $dir;
}
$this->styles[$style] = $options;
}
/**
* Adds inline CSS styles
* @param $style_css Mixed: inline CSS
* @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 a set of "<link>" elements for the stylesheets specified in the $this->styles array.
* These will be applied to various media & IE conditionals.
*
* @return string
*/
public function buildCssLinks() {
global $wgUseSiteCss, $wgAllowUserCss, $wgAllowUserCssPrefs, $wgContLang;
$this->getSkin()->setupSkinUserCss( $this );
// Add ResourceLoader styles
// Split the styles into four groups
$styles = array( 'other' => array(), 'user' => array(), 'site' => array(), 'private' => array(), 'noscript' => array() );
$otherTags = ''; // Tags to append after the normal <link> tags
$resourceLoader = $this->getResourceLoader();
$moduleStyles = $this->getModuleStyles();
// Per-site custom styles
if ( $wgUseSiteCss ) {
$moduleStyles[] = 'site';
$moduleStyles[] = 'noscript';
if( $this->getUser()->isLoggedIn() ) {
$moduleStyles[] = 'user.groups';
}
}
// Per-user custom styles
if ( $wgAllowUserCss ) {
if ( $this->getTitle()->isCssSubpage() && $this->userCanPreview() ) {
// We're on a preview of a CSS subpage
// Exclude this page from the user module in case it's in there (bug 26283)
$otherTags .= $this->makeResourceLoaderLink( 'user', ResourceLoaderModule::TYPE_STYLES, false,
array( 'excludepage' => $this->getTitle()->getPrefixedDBkey() )
);
// Load the previewed CSS
// If needed, Janus it first. This is user-supplied CSS, so it's
// assumed to be right for the content language directionality.
$previewedCSS = $this->getRequest()->getText( 'wpTextbox1' );
if ( $this->getLanguage()->getDir() !== $wgContLang->getDir() ) {
$previewedCSS = CSSJanus::transform( $previewedCSS, true, false );
}
$otherTags .= Html::inlineStyle( $previewedCSS );
} else {
// Load the user styles normally
$moduleStyles[] = 'user';
}
}
// Per-user preference styles
if ( $wgAllowUserCssPrefs ) {
$moduleStyles[] = 'user.cssprefs';
}
foreach ( $moduleStyles as $name ) {
$module = $resourceLoader->getModule( $name );
if ( !$module ) {
continue;
}
$group = $module->getGroup();
// Modules in groups named "other" or anything different than "user", "site" or "private"
// will be placed in the "other" group
$styles[isset( $styles[$group] ) ? $group : 'other'][] = $name;
}
// We want site, private and user styles to override dynamically added styles from modules, but we want
// dynamically added styles to override statically added styles from other modules. So the order
// has to be other, dynamic, site, private, user
// Add statically added styles for other modules
$ret = $this->makeResourceLoaderLink( $styles['other'], ResourceLoaderModule::TYPE_STYLES );
// Add normal styles added through addStyle()/addInlineStyle() here
$ret .= implode( "\n", $this->buildCssLinksArray() ) . $this->mInlineStyles;
// Add marker tag to mark the place where the client-side loader should inject dynamic styles
// We use a <meta> tag with a made-up name for this because that's valid HTML
$ret .= Html::element( 'meta', array( 'name' => 'ResourceLoaderDynamicStyles', 'content' => '' ) ) . "\n";
// Add site, private and user styles
// 'private' at present only contains user.options, so put that before 'user'
// Any future private modules will likely have a similar user-specific character
foreach ( array( 'site', 'noscript', 'private', 'user' ) as $group ) {
$ret .= $this->makeResourceLoaderLink( $styles[$group],
ResourceLoaderModule::TYPE_STYLES
);
}
// Add stuff in $otherTags (previewed user CSS if applicable)
$ret .= $otherTags;
return $ret;
}
/**
* @return Array
*/
public function buildCssLinksArray() {
$links = array();
// Add any extension CSS
foreach ( $this->mExtStyles as $url ) {
$this->addStyle( $url );
}
$this->mExtStyles = array();
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, $options ) {
if( isset( $options['dir'] ) ) {
if( $this->getLanguage()->getDir() != $options['dir'] ) {
return '';
}
}
if( isset( $options['media'] ) ) {
$media = self::transformCssMedia( $options['media'] );
if( is_null( $media ) ) {
return '';
}
} else {
$media = 'all';
}
if( substr( $style, 0, 1 ) == '/' ||
substr( $style, 0, 5 ) == 'http:' ||
substr( $style, 0, 6 ) == 'https:' ) {
$url = $style;
} else {
global $wgStylePath, $wgStyleVersion;
$url = $wgStylePath . '/' . $style . '?' . $wgStyleVersion;
}
$link = Html::linkedStyle( $url, $media );
if( isset( $options['condition'] ) ) {
$condition = htmlspecialchars( $options['condition'] );
$link = "<!--[if $condition]>$link<![endif]-->";
}
return $link;
}
/**
* Transform "media" attribute based on request parameters
*
* @param string $media current value of the "media" attribute
* @return String: modified value of the "media" attribute, or null to skip
* this stylesheet
*/
public static function transformCssMedia( $media ) {
global $wgRequest, $wgHandheldForIPhone;
// http://www.w3.org/TR/css3-mediaqueries/#syntax
$screenMediaQueryRegex = '/^(?:only\s+)?screen\b/i';
// Switch in on-screen display for media testing
$switches = array(
'printable' => 'print',
'handheld' => 'handheld',
);
foreach( $switches as $switch => $targetMedia ) {
if( $wgRequest->getBool( $switch ) ) {
if( $media == $targetMedia ) {
$media = '';
} elseif( preg_match( $screenMediaQueryRegex, $media ) === 1 ) {
// 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 print request, we never want any kind of screen stylesheets
// If it's a handheld request (currently the only other choice with a switch),
// we don't want simple 'screen' but we might want screen queries that
// have a max-width or something, so we'll pass all others on and let the
// client do the query.
if( $targetMedia == 'print' || $media == 'screen' ) {
return null;
}
}
}
}
// Expand longer media queries as iPhone doesn't grok 'handheld'
if( $wgHandheldForIPhone ) {
$mediaAliases = array(
'screen' => 'screen and (min-device-width: 481px)',
'handheld' => 'handheld, only screen and (max-device-width: 480px)',
);
if( isset( $mediaAliases[$media] ) ) {
$media = $mediaAliases[$media];
}
}
return $media;
}
/**
* Add a wikitext-formatted message to the output.
* This is equivalent to:
*
* $wgOut->addWikiText( wfMessage( ... )->plain() )
*/
public function addWikiMsg( /*...*/ ) {
$args = func_get_args();
$name = array_shift( $args );
$this->addWikiMsgArray( $name, $args );
}
/**
* Add a wikitext-formatted message to the output.
* Like addWikiMsg() except the parameters are taken as an array
* instead of a variable argument list.
*
* @param $name string
* @param $args array
*/
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 either be strings, in which case they are the
* message names, or arrays, in which case 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 users interface language.
*
* For example:
*
* $wgOut->wrapWikiMsg( "<div class='error'>\n$1\n</div>", 'some-error' );
*
* Is equivalent to:
*
* $wgOut->addWikiText( "<div class='error'>\n" . wfMessage( 'some-error' )->plain() . "\n</div>" );
*
* The newline after opening div is needed in some wikitext. See bug 19226.
*
* @param $wrap string
*/
public function wrapWikiMsg( $wrap /*, ...*/ ) {
$msgSpecs = func_get_args();
array_shift( $msgSpecs );
$msgSpecs = array_values( $msgSpecs );
$s = $wrap;
foreach ( $msgSpecs as $n => $spec ) {
if ( is_array( $spec ) ) {
$args = $spec;
$name = array_shift( $args );
if ( isset( $args['options'] ) ) {
unset( $args['options'] );
wfDeprecated(
'Adding "options" to ' . __METHOD__ . ' is no longer supported',
'1.20'
);
}
} else {
$args = array();
$name = $spec;
}
$s = str_replace( '$' . ( $n + 1 ), $this->msg( $name, $args )->plain(), $s );
}
$this->addWikiText( $s );
}
/**
* Include jQuery core. Use this to avoid loading it multiple times
* before we get a usable script loader.
*
* @param array $modules list of jQuery modules which should be loaded
* @return Array: the list of modules which were not loaded.
* @since 1.16
* @deprecated since 1.17
*/
public function includeJQuery( $modules = array() ) {
return array();
}
}
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