w/s fixup
[lhc/web/wiklou.git] / includes / OutputPage.php
index 6579b21..af2f264 100644 (file)
@@ -13,12 +13,12 @@ if ( !defined( 'MEDIAWIKI' ) ) {
  *
  * @todo FIXME: Another class handles sending the whole page to the client.
  *
- * Some comments comes from a pairing session between Zak Greant and Ashar Voultoiz
+ * Some comments comes from a pairing session between Zak Greant and Antoine Musso
  * in November 2010.
  *
  * @todo document
  */
-class OutputPage {
+class OutputPage extends ContextSource {
        /// Should be private. Used with addMeta() which adds <meta>
        var $mMetatags = array();
 
@@ -124,6 +124,7 @@ class OutputPage {
        // @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();
@@ -151,7 +152,10 @@ class OutputPage {
        // Parser related.
        var $mContainsOldMagic = 0, $mContainsNewMagic = 0;
 
-       /// lazy initialised, use parserOptions()
+       /**
+        * lazy initialised, use parserOptions()
+        * @var ParserOptions
+        */
        protected $mParserOptions = null;
 
        /**
@@ -196,8 +200,6 @@ class OutputPage {
 
        var $mFileVersion = null;
 
-       private $mContext;
-
        /**
         * An array of stylesheet filenames (relative from skins path), with options
         * for CSS media, IE conditions, and RTL/LTR direction.
@@ -225,12 +227,13 @@ class OutputPage {
         * Instead a new RequestContext should be created and it will implicitly create
         * a OutputPage tied to that context.
         */
-       function __construct( RequestContext $context = null ) {
-               if ( !isset($context) ) {
+       function __construct( IContextSource $context = null ) {
+               if ( $context === null ) {
                        # Extensions should use `new RequestContext` instead of `new OutputPage` now.
                        wfDeprecated( __METHOD__ );
+               } else {
+                       $this->setContext( $context );
                }
-               $this->mContext = $context;
        }
 
        /**
@@ -510,6 +513,15 @@ class OutputPage {
                $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
         *
@@ -748,7 +760,11 @@ class OutputPage {
         * @param $name string
         */
        public function setHTMLTitle( $name ) {
-               $this->mHTMLtitle = $name;
+               if ( $name instanceof Message ) {
+                       $this->mHTMLtitle = $name->setContext( $this->getContext() )->text();
+               } else {
+                       $this->mHTMLtitle = $name;
+               }
        }
 
        /**
@@ -766,16 +782,20 @@ class OutputPage {
         * 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
+        * @param $name string|Message
         */
        public function setPageTitle( $name ) {
+               if ( $name instanceof Message ) {
+                       $name = $name->setContext( $this->getContext() )->text();
+               }
+
                # change "<script>foo&bar</script>" to "&lt;script&gt;foo&amp;bar&lt;/script&gt;"
                # but leave "<i>foobar</i>" alone
                $nameWithTags = Sanitizer::normalizeCharReferences( Sanitizer::removeHTMLtags( $name ) );
                $this->mPagetitle = $nameWithTags;
 
                # change "<i>foo&amp;bar</i>" to "foo&bar"
-               $this->setHTMLTitle( wfMsg( 'pagetitle', Sanitizer::stripAllTags( $nameWithTags ) ) );
+               $this->setHTMLTitle( $this->msg( 'pagetitle', Sanitizer::stripAllTags( $nameWithTags ) ) );
        }
 
        /**
@@ -787,29 +807,6 @@ class OutputPage {
                return $this->mPagetitle;
        }
 
-       /**
-        * Get the RequestContext used in this instance
-        *
-        * @return RequestContext
-        */
-       private function getContext() {
-               if ( !isset($this->mContext) ) {
-                       wfDebug( __METHOD__ . " called and \$mContext is null. Using RequestContext::getMain(); for sanity\n" );
-                       $this->mContext = RequestContext::getMain();
-               }
-               return $this->mContext;
-       }
-
-       /**
-        * Get the WebRequest being used for this instance
-        *
-        * @return WebRequest
-        * @since 1.18
-        */
-       public function getRequest() {
-               return $this->getContext()->getRequest();
-       }
-
        /**
         * Set the Title object to use
         *
@@ -819,34 +816,6 @@ class OutputPage {
                $this->getContext()->setTitle( $t );
        }
 
-       /**
-        * Get the Title object used in this instance
-        *
-        * @return Title
-        */
-       public function getTitle() {
-               return $this->getContext()->getTitle();
-       }
-
-       /**
-        * Get the User object used in this instance
-        *
-        * @return User
-        * @since 1.18
-        */
-       public function getUser() {
-               return $this->getContext()->getUser();
-       }
-
-       /**
-        * Get the Skin object used to render this instance
-        *
-        * @return Skin
-        * @since 1.18
-        */
-       public function getSkin() {
-               return $this->getContext()->getSkin();
-       }
 
        /**
         * Replace the subtile with $str
@@ -1244,6 +1213,19 @@ class OutputPage {
                $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
         */
@@ -1278,7 +1260,7 @@ class OutputPage {
         */
        public function parserOptions( $options = null ) {
                if ( !$this->mParserOptions ) {
-                       $this->mParserOptions = new ParserOptions;
+                       $this->mParserOptions = ParserOptions::newFromContext( $this->getContext() );
                        $this->mParserOptions->setEditSection( false );
                }
                return wfSetVar( $this->mParserOptions, $options );
@@ -1344,7 +1326,7 @@ class OutputPage {
         * @return Array (dbKey => array('time' => MW timestamp or null, 'sha1' => sha1 or ''))
         * @since 1.18
         */
-       public function getImageTimeKeys() {
+       public function getFileSearchOptions() {
                return $this->mImageTimeKeys;
        }
 
@@ -1354,10 +1336,11 @@ class OutputPage {
         *
         * @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 ) {
+       public function addWikiText( $text, $linestart = true, $interface = true ) {
                $title = $this->getTitle(); // Work arround E_STRICT
-               $this->addWikiTextTitle( $text, $title, $linestart );
+               $this->addWikiTextTitle( $text, $title, $linestart, /*tidy*/false, $interface );
        }
 
        /**
@@ -1372,7 +1355,7 @@ class OutputPage {
        }
 
        /**
-        * Add wikitext with a custom Title object and
+        * Add wikitext with a custom Title object and tidy enabled.
         *
         * @param $text String: wikitext
         * @param $title Title object
@@ -1400,8 +1383,10 @@ class OutputPage {
         * @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, $linestart, $tidy = false ) {
+       public function addWikiTextTitle( $text, &$title, $linestart, $tidy = false, $interface = false ) {
                global $wgParser;
 
                wfProfileIn( __METHOD__ );
@@ -1410,6 +1395,7 @@ class OutputPage {
 
                $popts = $this->parserOptions();
                $oldTidy = $popts->setTidy( $tidy );
+               $popts->setInterfaceMessage( (bool) $interface );
 
                $parserOutput = $wgParser->parse(
                        $text, $title, $popts,
@@ -1441,6 +1427,9 @@ class OutputPage {
                $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 => $dbks ) {
@@ -1451,7 +1440,7 @@ class OutputPage {
                        }
                }
                // File versioning...
-               foreach ( (array)$parserOutput->getImageTimeKeys() as $dbk => $data ) {
+               foreach ( (array)$parserOutput->getFileSearchOptions() as $dbk => $data ) {
                        $this->mImageTimeKeys[$dbk] = $data;
                }
 
@@ -1499,19 +1488,13 @@ class OutputPage {
         * @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
+        *                   words like GRAMMAR and PLURAL. This also disables
+        *                                       LanguageConverter.
         * @param $language  Language object: target language object, will override
         *                   $interface
         * @return String: HTML
         */
        public function parse( $text, $linestart = true, $interface = false, $language = null ) {
-               // Check one for one common cause for parser state resetting
-               $callers = wfGetAllCallers( 10 );
-               if ( strpos( $callers, 'Parser::extensionSubstitution' ) !== false ) {
-                       throw new MWException( "wfMsg* function with parsing cannot be used " .
-                               "inside a tag hook. Should use parser->recursiveTagParse() instead" );
-               }
-
                global $wgParser;
 
                if( is_null( $this->getTitle() ) ) {
@@ -1657,7 +1640,7 @@ class OutputPage {
                                $this->mVaryHeader[$header] = $option;
                        }
                }
-               $this->mVaryHeader[$header] = array_unique( $this->mVaryHeader[$header] );
+               $this->mVaryHeader[$header] = array_unique( (array)$this->mVaryHeader[$header] );
        }
 
        /**
@@ -1696,12 +1679,12 @@ class OutputPage {
         *   /w/index.php?title=Main_page&variant=zh-cn should never be served.
         */
        function addAcceptLanguage() {
-               global $wgContLang;
-               if( !$this->getRequest()->getCheck( 'variant' ) && $wgContLang->hasVariants() ) {
-                       $variants = $wgContLang->getVariants();
+               $lang = $this->getTitle()->getPageLanguage();
+               if( !$this->getRequest()->getCheck( 'variant' ) && $lang->hasVariants() ) {
+                       $variants = $lang->getVariants();
                        $aloption = array();
                        foreach ( $variants as $variant ) {
-                               if( $variant === $wgContLang->getCode() ) {
+                               if( $variant === $lang->getCode() ) {
                                        continue;
                                } else {
                                        $aloption[] = 'string-contains=' . $variant;
@@ -1758,6 +1741,7 @@ class OutputPage {
                } elseif ( $this->mPreventClickjacking && $wgEditPageFrameOptions ) {
                        return $wgEditPageFrameOptions;
                }
+               return false;
        }
 
        /**
@@ -1847,7 +1831,7 @@ class OutputPage {
         * the object, let's actually output it:
         */
        public function output() {
-               global $wgLanguageCode, $wgDebugRedirects, $wgMimeType;
+               global $wgLanguageCode, $wgDebugRedirects, $wgMimeType, $wgVaryOnXFP;
 
                if( $this->mDoNothing ) {
                        return;
@@ -1859,7 +1843,7 @@ class OutputPage {
 
                if ( $this->mRedirect != '' ) {
                        # Standards require redirect URLs to be absolute
-                       $this->mRedirect = wfExpandUrl( $this->mRedirect );
+                       $this->mRedirect = wfExpandUrl( $this->mRedirect, PROTO_CURRENT );
                        if( $this->mRedirectCode == '301' || $this->mRedirectCode == '303' ) {
                                if( !$wgDebugRedirects ) {
                                        $message = HttpStatus::getMessage( $this->mRedirectCode );
@@ -1867,6 +1851,9 @@ class OutputPage {
                                }
                                $this->mLastModified = wfTimestamp( TS_RFC2822 );
                        }
+                       if ( $wgVaryOnXFP ) {
+                               $this->addVaryHeader( 'X-Forwarded-Proto' );
+                       }
                        $this->sendCacheControl();
 
                        $response->header( "Content-Type: text/html; charset=utf-8" );
@@ -1911,7 +1898,7 @@ class OutputPage {
                        wfRunHooks( 'BeforePageDisplay', array( &$this, &$sk ) );
 
                        wfProfileIn( 'Output-skin' );
-                       $sk->outputPage( $this );
+                       $sk->outputPage();
                        wfProfileOut( 'Output-skin' );
                }
 
@@ -1938,25 +1925,49 @@ class OutputPage {
        }
 
        /**
-        * Output a standard error page
+        * 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 $title String: message key for page title
-        * @param $msg String: message key for page text
-        * @param $params Array: message parameters
+        * @param $pageTitle String|Message will be passed directly to setPageTitle()
+        * @param $htmlTitle String|Message will be passed directly to setHTMLTitle();
+        *                   optional, if not passed the <title> attribute will be
+        *                   based on $pageTitle
         */
-       public function showErrorPage( $title, $msg, $params = array() ) {
+       public function prepareErrorPage( $pageTitle, $htmlTitle = false ) {
                if ( $this->getTitle() ) {
                        $this->mDebugtext .= 'Original title: ' . $this->getTitle()->getPrefixedText() . "\n";
                }
-               $this->setPageTitle( wfMsg( $title ) );
-               $this->setHTMLTitle( wfMsg( 'errorpagetitle' ) );
+
+               $this->setPageTitle( $pageTitle );
+               if ( $htmlTitle !== false ) {
+                       $this->setHTMLTitle( $htmlTitle );
+               }
                $this->setRobotPolicy( 'noindex,nofollow' );
                $this->setArticleRelated( false );
                $this->enableClientCache( false );
                $this->mRedirect = '';
-               $this->mBodytext = '';
+               $this->clearHTML();
+       }
 
-               $this->addWikiMsgArray( $msg, $params );
+       /**
+        * Output a standard error page
+        *
+        * showErrorPage( 'titlemsg', 'pagetextmsg', array( 'param1', 'param2' ) );
+        * showErrorPage( 'titlemsg', $messageObject );
+        *
+        * @param $title String: message key for page title
+        * @param $msg Mixed: message key (string) for page text, or a Message object
+        * @param $params Array: message parameters; ignored if $msg is a Message object
+        */
+       public function showErrorPage( $title, $msg, $params = array() ) {
+               $this->prepareErrorPage( $this->msg( $title ), $this->msg( 'errorpagetitle' ) );
+
+               if ( $msg instanceof Message ){
+                       $this->addHTML( $msg->parse() );
+               } else {
+                       $this->addWikiMsgArray( $msg, $params );
+               }
 
                $this->returnToMain();
        }
@@ -1968,15 +1979,8 @@ class OutputPage {
         * @param $action String: action that was denied or null if unknown
         */
        public function showPermissionsErrorPage( $errors, $action = null ) {
-               $this->mDebugtext .= 'Original title: ' .
-               $this->getTitle()->getPrefixedText() . "\n";
-               $this->setPageTitle( wfMsg( 'permissionserrors' ) );
-               $this->setHTMLTitle( wfMsg( 'permissionserrors' ) );
-               $this->setRobotPolicy( 'noindex,nofollow' );
-               $this->setArticleRelated( false );
-               $this->enableClientCache( false );
-               $this->mRedirect = '';
-               $this->mBodytext = '';
+               $this->prepareErrorPage( $this->msg( 'permissionserrors' ) );
+
                $this->addWikiText( $this->formatPermissionsErrorMessage( $errors, $action ) );
        }
 
@@ -1987,11 +1991,7 @@ class OutputPage {
         * @param $version Mixed: the version of MediaWiki needed to use the page
         */
        public function versionRequired( $version ) {
-               $this->setPageTitle( wfMsg( 'versionrequired', $version ) );
-               $this->setHTMLTitle( wfMsg( 'versionrequired', $version ) );
-               $this->setRobotPolicy( 'noindex,nofollow' );
-               $this->setArticleRelated( false );
-               $this->mBodytext = '';
+               $this->prepareErrorPage( $this->msg( 'versionrequired', $version ) );
 
                $this->addWikiMsg( 'versionrequiredtext', $version );
                $this->returnToMain();
@@ -2014,19 +2014,15 @@ class OutputPage {
                        throw new PermissionsError( 'read' );
                }
 
-               $this->setPageTitle( wfMsg( 'loginreqtitle' ) );
-               $this->setHtmlTitle( wfMsg( 'errorpagetitle' ) );
-               $this->setRobotPolicy( 'noindex,nofollow' );
-               $this->setArticleRelated( false );
+               $this->prepareErrorPage( $this->msg( 'loginreqtitle' ), $this->msg( 'errorpagetitle' ) );
 
-               $loginTitle = SpecialPage::getTitleFor( 'Userlogin' );
                $loginLink = Linker::linkKnown(
-                       $loginTitle,
-                       wfMsgHtml( 'loginreqlink' ),
+                       SpecialPage::getTitleFor( 'Userlogin' ),
+                       $this->msg( 'loginreqlink' )->escaped(),
                        array(),
                        array( 'returnto' => $this->getTitle()->getPrefixedText() )
                );
-               $this->addHTML( wfMessage( 'loginreqpagetext' )->rawParams( $loginLink )->parse() .
+               $this->addHTML( $this->msg( 'loginreqpagetext' )->rawParams( $loginLink )->parse() .
                        "\n<!--" . $this->getTitle()->getPrefixedUrl() . '-->' );
 
                # Don't return to the main page if the user can't read it
@@ -2046,14 +2042,14 @@ class OutputPage {
         */
        public function formatPermissionsErrorMessage( $errors, $action = null ) {
                if ( $action == null ) {
-                       $text = wfMsgNoTrans( 'permissionserrorstext', count( $errors ) ) . "\n\n";
+                       $text = $this->msg( 'permissionserrorstext', count( $errors ) )->plain() . "\n\n";
                } else {
-                       $action_desc = wfMsgNoTrans( "action-$action" );
-                       $text = wfMsgNoTrans(
+                       $action_desc = $this->msg( "action-$action" )->plain();
+                       $text = $this->msg(
                                'permissionserrorstext-withaction',
                                count( $errors ),
                                $action_desc
-                       ) . "\n\n";
+                       )->plain() . "\n\n";
                }
 
                if ( count( $errors ) > 1 ) {
@@ -2061,13 +2057,13 @@ class OutputPage {
 
                        foreach( $errors as $error ) {
                                $text .= '<li>';
-                               $text .= call_user_func_array( 'wfMsgNoTrans', $error );
+                               $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( 'wfMsgNoTrans', reset( $errors ) ) .
+                                       call_user_func_array( array( $this, 'msg' ), reset( $errors ) )->plain() .
                                        "\n</div>";
                }
 
@@ -2107,12 +2103,12 @@ class OutputPage {
                if ( !empty( $reasons ) ) {
                        // Permissions error
                        if( $source ) {
-                               $this->setPageTitle( wfMsg( 'viewsource' ) );
+                               $this->setPageTitle( $this->msg( 'viewsource' ) );
                                $this->setSubtitle(
-                                       wfMsg( 'viewsourcefor', Linker::linkKnown( $this->getTitle() ) )
+                                       $this->msg( 'viewsourcefor', Linker::linkKnown( $this->getTitle() ) )->text()
                                );
                        } else {
-                               $this->setPageTitle( wfMsg( 'badaccess' ) );
+                               $this->setPageTitle( $this->msg( 'badaccess' ) );
                        }
                        $this->addWikiText( $this->formatPermissionsErrorMessage( $reasons, $action ) );
                } else {
@@ -2124,12 +2120,15 @@ class OutputPage {
                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'
+                               'readonly' => 'readonly',
+                               'lang' => $pageLang->getCode(),
+                               'dir' => $pageLang->getDir(),
                        );
                        $this->addHTML( Html::element( 'textarea', $params, $source ) );
 
@@ -2174,37 +2173,34 @@ $templates
                                ? 'lag-warn-normal'
                                : 'lag-warn-high';
                        $wrap = Html::rawElement( 'div', array( 'class' => "mw-{$message}" ), "\n$1\n" );
-                       $this->wrapWikiMsg( "$wrap\n", array( $message, $this->getContext()->getLang()->formatNum( $lag ) ) );
+                       $this->wrapWikiMsg( "$wrap\n", array( $message, $this->getLang()->formatNum( $lag ) ) );
                }
        }
 
        public function showFatalError( $message ) {
-               $this->setPageTitle( wfMsg( 'internalerror' ) );
-               $this->setRobotPolicy( 'noindex,nofollow' );
-               $this->setArticleRelated( false );
-               $this->enableClientCache( false );
-               $this->mRedirect = '';
-               $this->mBodytext = $message;
+               $this->prepareErrorPage( $this->msg( 'internalerror' ) );
+
+               $this->addHTML( $message );
        }
 
        public function showUnexpectedValueError( $name, $val ) {
-               $this->showFatalError( wfMsg( 'unexpected', $name, $val ) );
+               $this->showFatalError( $this->msg( 'unexpected', $name, $val )->text() );
        }
 
        public function showFileCopyError( $old, $new ) {
-               $this->showFatalError( wfMsg( 'filecopyerror', $old, $new ) );
+               $this->showFatalError( $this->msg( 'filecopyerror', $old, $new )->text() );
        }
 
        public function showFileRenameError( $old, $new ) {
-               $this->showFatalError( wfMsg( 'filerenameerror', $old, $new ) );
+               $this->showFatalError( $this->msg( 'filerenameerror', $old, $new )->text() );
        }
 
        public function showFileDeleteError( $name ) {
-               $this->showFatalError( wfMsg( 'filedeleteerror', $name ) );
+               $this->showFatalError( $this->msg( 'filedeleteerror', $name )->text() );
        }
 
        public function showFileNotFoundError( $name ) {
-               $this->showFatalError( wfMsg( 'filenotfound', $name ) );
+               $this->showFatalError( $this->msg( 'filenotfound', $name )->text() );
        }
 
        /**
@@ -2216,10 +2212,8 @@ $templates
         */
        public function addReturnTo( $title, $query = array(), $text = null ) {
                $this->addLink( array( 'rel' => 'next', 'href' => $title->getFullURL() ) );
-               $link = wfMsgHtml(
-                       'returnto',
-                       Linker::link( $title, $text, array(), $query )
-               );
+               $link = $this->msg( 'returnto' )->rawParams(
+                       Linker::link( $title, $text, array(), $query ) )->escaped();
                $this->addHTML( "<p id=\"mw-returnto\">{$link}</p>\n" );
        }
 
@@ -2262,18 +2256,18 @@ $templates
         * @return String: The doctype, opening <html>, and head element.
         */
        public function headElement( Skin $sk, $includeStyle = true ) {
-               global $wgLang, $wgContLang, $wgUseTrackbacks;
-               $userdir = $wgLang->getDir();
+               global $wgContLang, $wgUseTrackbacks;
+               $userdir = $this->getLang()->getDir();
                $sitedir = $wgContLang->getDir();
 
                if ( $sk->commonPrintStylesheet() ) {
                        $this->addModuleStyles( 'mediawiki.legacy.wikiprintable' );
                }
 
-               $ret = Html::htmlHeader( array( 'lang' => $wgLang->getCode(), 'dir' => $userdir ) );
+               $ret = Html::htmlHeader( array( 'lang' => $this->getLang()->getCode(), 'dir' => $userdir, 'class' => 'client-nojs' ) );
 
                if ( $this->getHTMLTitle() == '' ) {
-                       $this->setHTMLTitle( wfMsg( 'pagetitle', $this->getPageTitle() ) );
+                       $this->setHTMLTitle( $this->msg( 'pagetitle', $this->getPageTitle() ) );
                }
 
                $openHead = Html::openElement( 'head' );
@@ -2302,17 +2296,10 @@ $templates
 
                $bodyAttrs = array();
 
-               # Crazy edit-on-double-click stuff
-               if ( $this->isArticle() && $this->getUser()->getOption( 'editondblclick' ) ) {
-                       $editUrl = $this->getTitle()->getLocalUrl( $sk->editUrlOptions() );
-                       $bodyAttrs['ondblclick'] = "document.location = '" .
-                               Xml::escapeJsString( $editUrl ) . "'";
-               }
-
                # Classes for LTR/RTL directionality support
                $bodyAttrs['class'] = "mediawiki $userdir sitedir-$sitedir";
 
-               if ( $this->getContext()->getLang()->capitalizeAllNouns() ) {
+               if ( $this->getLang()->capitalizeAllNouns() ) {
                        # A <body> class is probably not the best way to do this . . .
                        $bodyAttrs['class'] .= ' capitalize-all-nouns';
                }
@@ -2331,8 +2318,7 @@ $templates
         * Add the default ResourceLoader modules to this object
         */
        private function addDefaultModules() {
-               global $wgIncludeLegacyJavaScript, $wgUseAjax,
-                       $wgAjaxWatch, $wgEnableMWSuggest, $wgUseAJAXCategories;
+               global $wgIncludeLegacyJavaScript, $wgUseAjax, $wgAjaxWatch, $wgEnableMWSuggest;
 
                // Add base resources
                $this->addModules( array(
@@ -2356,7 +2342,7 @@ $templates
                        }
 
                        if ( $wgEnableMWSuggest && !$this->getUser()->getOption( 'disablesuggest', false ) ) {
-                               $this->addModules( 'mediawiki.page.mwsuggest' );
+                               $this->addModules( 'mediawiki.legacy.mwsuggest' );
                        }
                }
 
@@ -2364,14 +2350,9 @@ $templates
                        $this->addModules( 'mediawiki.action.view.rightClickEdit' );
                }
 
-               if ( $wgUseAJAXCategories ) {
-                       global $wgAJAXCategoriesNamespaces;
-
-                       $title = $this->getTitle();
-
-                       if( empty( $wgAJAXCategoriesNamespaces ) || in_array( $title->getNamespace(), $wgAJAXCategoriesNamespaces ) ) {
-                               $this->addModules( 'mediawiki.page.ajaxCategories.init' );
-                       }
+               # Crazy edit-on-double-click stuff
+               if ( $this->isArticle() && $this->getUser()->getOption( 'editondblclick' ) ) {
+                       $this->addModules( 'mediawiki.action.view.dblClickEdit' );
                }
        }
 
@@ -2389,31 +2370,14 @@ $templates
 
        /**
         * TODO: Document
-        * @param $modules Array/string with the module name
+        * @param $modules Array/string with the module name(s)
         * @param $only String ResourceLoaderModule TYPE_ class constant
         * @param $useESI boolean
+        * @param $extraQuery Array with extra query parameters to add to each request. array( param => value )
         * @return string html <script> and <style> tags
         */
-       protected function makeResourceLoaderLink( $modules, $only, $useESI = false ) {
-               global $wgLoadScript, $wgResourceLoaderUseESI,
-                       $wgResourceLoaderInlinePrivateModules;
-               // Lazy-load ResourceLoader
-               // TODO: Should this be a static function of ResourceLoader instead?
-               $baseQuery = array(
-                       'lang' => $this->getContext()->getLang()->getCode(),
-                       'debug' => ResourceLoader::inDebugMode() ? 'true' : 'false',
-                       'skin' => $this->getSkin()->getSkinName(),
-               );
-               if ( $only !== ResourceLoaderModule::TYPE_COMBINED ) {
-                       $baseQuery['only'] = $only;
-               }
-               // Propagate printable and handheld parameters if present
-               if ( $this->isPrintable() ) {
-                       $baseQuery['printable'] = 1;
-               }
-               if ( $this->getRequest()->getBool( 'handheld' ) ) {
-                       $baseQuery['handheld'] = 1;
-               }
+       protected function makeResourceLoaderLink( $modules, $only, $useESI = false, array $extraQuery = array() ) {
+               global $wgResourceLoaderUseESI, $wgResourceLoaderInlinePrivateModules;
 
                if ( !count( $modules ) ) {
                        return '';
@@ -2459,14 +2423,26 @@ $templates
 
                $links = '';
                foreach ( $groups as $group => $modules ) {
-                       $query = $baseQuery;
                        // Special handling for user-specific groups
+                       $user = null;
                        if ( ( $group === 'user' || $group === 'private' ) && $this->getUser()->isLoggedIn() ) {
-                               $query['user'] = $this->getUser()->getName();
+                               $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->getLang()->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 ) );
                        // Drop modules that know they're empty
                        foreach ( $modules as $key => $module ) {
@@ -2479,8 +2455,6 @@ $templates
                                continue;
                        }
 
-                       $query['modules'] = ResourceLoader::makePackedModulesString( array_keys( $modules ) );
-
                        // Support inlining of private modules if configured as such
                        if ( $group === 'private' && $wgResourceLoaderInlinePrivateModules ) {
                                if ( $only == ResourceLoaderModule::TYPE_STYLES ) {
@@ -2502,6 +2476,7 @@ $templates
                        // timestamp of these user-changable 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;
@@ -2509,15 +2484,21 @@ $templates
                                        $timestamp = max( $timestamp, $module->getModifiedTime( $context ) );
                                }
                                // Add a version parameter so cache will break when things change
-                               $query['version'] = wfTimestamp( TS_ISO_8601_BASIC, $timestamp );
+                               $version = wfTimestamp( TS_ISO_8601_BASIC, $timestamp );
                        }
-                       // Make queries uniform in order
-                       ksort( $query );
 
-                       $url = wfAppendQuery( $wgLoadScript, $query );
-                       // Prevent the IE6 extension check from being triggered (bug 28840)
-                       // by appending a character that's invalid in Windows extensions ('*')
-                       $url .= '&*';
+                       $url = ResourceLoader::makeLoaderURL(
+                               array_keys( $modules ),
+                               $this->getLang()->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 ) {
@@ -2621,11 +2602,15 @@ $templates
                if ( $wgAllowUserJs && $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() )
+                               );
+                               // Load the previewed JS
                                $scripts .= Html::inlineScript( "\n" . $this->getRequest()->getText( 'wpTextbox1' ) . "\n" ) . "\n";
                        } else {
-                               # @todo FIXME: This means that User:Me/Common.js doesn't load when previewing
-                               # User:Me/Vector.js, and vice versa (bug 26283)
-                               
+                               // Include the user module normally
                                // We can't do $userScripts[] = 'user'; because the user module would end up
                                // being wrapped in a closure, so load it raw like 'site'
                                $scripts .= $this->makeResourceLoaderLink( 'user', ResourceLoaderModule::TYPE_SCRIPTS );
@@ -2637,15 +2622,33 @@ $templates
        }
 
        /**
-        * Get an array containing global JS variables
+        * Add one or more variables to be set in mw.config in JavaScript.
+        *
+        * @param $key {String|Array} Key or array of key/value pars.
+        * @param $value {Mixed} Value of the configuration variable.
+        */
+       public function addJsConfigVars( $keys, $value ) {
+               if ( is_array( $keys ) ) {
+                       foreach ( $keys as $key => $value ) {
+                               $this->mJsConfigVars[$key] = $value;
+                       }
+                       return;
+               }
+
+               $this->mJsConfigVars[$keys] = $value;
+       }
+
+
+       /**
+        * Get an array containing the variables to be set in mw.config in JavaScript.
         *
-        * Do not add things here which can be evaluated in
-        * ResourceLoaderStartupScript - in other words, without state.
-        * You will only be adding bloat to the page and causing page caches to
+        * Do not add things here which can be evaluated in ResourceLoaderStartupScript
+        * - 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.
         */
        protected function getJSVars() {
-               global $wgUseAjax, $wgEnableMWSuggest, $wgContLang;
+               global $wgUseAjax, $wgEnableMWSuggest;
 
                $title = $this->getTitle();
                $ns = $title->getNamespace();
@@ -2671,9 +2674,10 @@ $templates
                        'wgCategories' => $this->getCategories(),
                        'wgBreakFrames' => $this->getFrameOptions() == 'DENY',
                );
-               if ( $wgContLang->hasVariants() ) {
-                       $vars['wgUserVariant'] = $wgContLang->getPreferredVariant();
-               }
+               $lang = $this->getTitle()->getPageLanguage();
+               if ( $lang->hasVariants() ) {
+                       $vars['wgUserVariant'] = $lang->getPreferredVariant();
+               }
                foreach ( $title->getRestrictionTypes() as $type ) {
                        $vars['wgRestriction' . ucfirst( $type )] = $title->getRestrictions( $type );
                }
@@ -2684,10 +2688,14 @@ $templates
                        $vars['wgIsMainPage'] = true;
                }
 
-               // Allow extensions to add their custom variables to the global JS variables
-               wfRunHooks( 'MakeGlobalVariablesScript', array( &$vars ) );
+               // Allow extensions to add their custom variables to the mw.config map.
+               // Use the 'ResourceLoaderGetConfigVars' hook if the variable is not
+               // page-dependant but site-wide (without state).
+               // Alternatively, you may want to use OutputPage->addJsConfigVars() instead.
+               wfRunHooks( 'MakeGlobalVariablesScript', array( &$vars, &$this ) );
 
-               return $vars;
+               // Merge in variables from addJsConfigVars last
+               return array_merge( $vars, $this->mJsConfigVars );
        }
 
        /**
@@ -2724,7 +2732,7 @@ $templates
                global $wgUniversalEditButton, $wgFavicon, $wgAppleTouchIcon, $wgEnableAPI,
                        $wgSitename, $wgVersion, $wgHtml5, $wgMimeType,
                        $wgFeed, $wgOverrideSiteFeed, $wgAdvertisedFeedTypes,
-                       $wgDisableLangConversion, $wgCanonicalLanguageLinks, $wgContLang,
+                       $wgDisableLangConversion, $wgCanonicalLanguageLinks,
                        $wgRightsPage, $wgRightsUrl;
 
                $tags = array();
@@ -2800,7 +2808,7 @@ $templates
                        if ( $this->isArticleRelated() && $this->getTitle() && $this->getTitle()->quickUserCan( 'edit' )
                                && ( $this->getTitle()->exists() || $this->getTitle()->quickUserCan( 'create' ) ) ) {
                                // Original UniversalEditButton
-                               $msg = wfMsg( 'edit' );
+                               $msg = $this->msg( 'edit' )->text();
                                $tags[] = Html::element( 'link', array(
                                        'rel' => 'alternate',
                                        'type' => 'application/x-wiki',
@@ -2833,7 +2841,7 @@ $templates
                        'rel' => 'search',
                        'type' => 'application/opensearchdescription+xml',
                        'href' => wfScript( 'opensearch_desc' ),
-                       'title' => wfMsgForContent( 'opensearch-desc' ),
+                       'title' => $this->msg( 'opensearch-desc' )->inContentLanguage()->text(),
                ) );
 
                if ( $wgEnableAPI ) {
@@ -2844,18 +2852,22 @@ $templates
                        $tags[] = Html::element( 'link', array(
                                'rel' => 'EditURI',
                                'type' => 'application/rsd+xml',
-                               'href' => wfExpandUrl( wfAppendQuery( wfScript( 'api' ), array( 'action' => 'rsd' ) ) ),
+                               // 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 ),
                        ) );
                }
 
+               $lang = $this->getTitle()->getPageLanguage();
+
                # Language variants
                if ( !$wgDisableLangConversion && $wgCanonicalLanguageLinks
-                       && $wgContLang->hasVariants() ) {
+                       && $lang->hasVariants() ) {
 
-                       $urlvar = $wgContLang->getURLVariant();
+                       $urlvar = $lang->getURLVariant();
 
                        if ( !$urlvar ) {
-                               $variants = $wgContLang->getVariants();
+                               $variants = $lang->getVariants();
                                foreach ( $variants as $_v ) {
                                        $tags[] = Html::element( 'link', array(
                                                'rel' => 'alternate',
@@ -2866,8 +2878,8 @@ $templates
                        } else {
                                $tags[] = Html::element( 'link', array(
                                        'rel' => 'canonical',
-                                       'href' => $this->getTitle()->getFullURL() )
-                               );
+                                       'href' => $this->getTitle()->getCanonicalUrl()
+                               ) );
                        }
                }
 
@@ -2904,7 +2916,7 @@ $templates
                                        $format,
                                        $link,
                                        # Used messages: 'page-rss-feed' and 'page-atom-feed' (for an easier grep)
-                                       wfMsg( "page-{$format}-feed", $this->getTitle()->getPrefixedText() )
+                                       $this->msg( "page-{$format}-feed", $this->getTitle()->getPrefixedText() )->text()
                                );
                        }
 
@@ -2920,10 +2932,11 @@ $templates
 
                        if ( $wgOverrideSiteFeed ) {
                                foreach ( $wgOverrideSiteFeed as $type => $feedUrl ) {
+                                       // Note, this->feedLink escapes the url.
                                        $tags[] = $this->feedLink(
                                                $type,
-                                               htmlspecialchars( $feedUrl ),
-                                               wfMsg( "site-{$type}-feed", $wgSitename )
+                                               $feedUrl,
+                                               $this->msg( "site-{$type}-feed", $wgSitename )->text()
                                        );
                                }
                        } elseif ( $this->getTitle()->getPrefixedText() != $rctitle->getPrefixedText() ) {
@@ -2931,7 +2944,7 @@ $templates
                                        $tags[] = $this->feedLink(
                                                $format,
                                                $rctitle->getLocalURL( "feed={$format}" ),
-                                               wfMsg( "site-{$format}-feed", $wgSitename ) # For grep: 'site-rss-feed', 'site-atom-feed'.
+                                               $this->msg( "site-{$format}-feed", $wgSitename )->text() # For grep: 'site-rss-feed', 'site-atom-feed'.
                                        );
                                }
                        }
@@ -2984,8 +2997,13 @@ $templates
        /**
         * Adds inline CSS styles
         * @param $style_css Mixed: inline CSS
+        * @param $flip String: Set to 'flip' to flip the CSS if needed
         */
-       public function addInlineStyle( $style_css ){
+       public function addInlineStyle( $style_css, $flip = 'noflip' ) {
+               if( $flip === 'flip' && $this->getLang()->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 );
        }
 
@@ -3003,6 +3021,7 @@ $templates
                // 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();
@@ -3019,9 +3038,15 @@ $templates
                // Per-user custom styles
                if ( $wgAllowUserCss ) {
                        if ( $this->getTitle()->isCssSubpage() && $this->userCanPreview() ) {
-                               // @todo FIXME: Properly escape the cdata!
-                               $this->addInlineStyle( $this->getRequest()->getText( 'wpTextbox1' ) );
+                               // 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
+                               $otherTags .= Html::inlineStyle( $this->getRequest()->getText( 'wpTextbox1' ) );
                        } else {
+                               // Load the user styles normally
                                $moduleStyles[] = 'user';
                        }
                }
@@ -3057,9 +3082,15 @@ $templates
                                        ResourceLoaderModule::TYPE_STYLES
                        );
                }
+
+               // Add stuff in $otherTags (previewed user CSS if applicable)
+               $ret .= $otherTags;
                return $ret;
        }
 
+       /**
+        * @return Array
+        */
        public function buildCssLinksArray() {
                $links = array();
 
@@ -3088,8 +3119,7 @@ $templates
         */
        protected function styleLink( $style, $options ) {
                if( isset( $options['dir'] ) ) {
-                       global $wgLang;
-                       if( $wgLang->getDir() != $options['dir'] ) {
+                       if( $this->getLang()->getDir() != $options['dir'] ) {
                                return '';
                        }
                }
@@ -3177,16 +3207,11 @@ $templates
         * Like addWikiMsg() except the parameters are taken as an array
         * instead of a variable argument list.
         *
-        * $options is passed through to wfMsgExt(), see that function for details.
-        *
         * @param $name string
         * @param $args array
-        * @param $options array
         */
-       public function addWikiMsgArray( $name, $args, $options = array() ) {
-               $options[] = 'parse';
-               $text = wfMsgExt( $name, $options, $args );
-               $this->addHTML( $text );
+       public function addWikiMsgArray( $name, $args ) {
+               $this->addWikiText( $this->msg( $name, $args )->plain() );
        }
 
        /**