Re-encode in utf-8 and removed trailing whitespaces
[lhc/web/wiklou.git] / includes / OutputPage.php
index 917a730..0b2b6c5 100644 (file)
@@ -1,8 +1,6 @@
 <?php
 if ( ! defined( 'MEDIAWIKI' ) )
        die( 1 );
-/**
- */
 
 /**
  * @todo document
@@ -26,7 +24,7 @@ class OutputPage {
        var $mFeedLinksAppendQuery = false;
        var $mEnableClientCache = true;
        var $mArticleBodyOnly = false;
-       
+
        var $mNewSectionLink = false;
        var $mNoGallery = false;
        var $mPageTitleActionText = '';
@@ -59,13 +57,13 @@ class OutputPage {
                $this->mNewSectionLink = false;
                $this->mTemplateIds = array();
        }
-       
+
        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;
        }
-       
+
        public function getRedirect() {
                return $this->mRedirect;
        }
@@ -90,6 +88,21 @@ class OutputPage {
                                        'href' => $wgStylePath . '/' . $style . '?' . $wgStyleVersion ) );
        }
 
+       /**
+        * 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)
+        */
+       function addScriptFile( $file ) {
+               global $wgStylePath, $wgStyleVersion, $wgJsMimeType;
+               if( substr( $file, 0, 1 ) == '/' ) {
+                       $path = $file;
+               } else {
+                       $path =  "{$wgStylePath}/common/{$file}";
+               }
+               $encPath = htmlspecialchars( $path );
+               $this->addScript( "<script type=\"{$wgJsMimeType}\" src=\"$path?$wgStyleVersion\"></script>\n" );
+       }
+       
        /**
         * Add a self-contained script tag with the given contents
         * @param string $script JavaScript text, no <script> tags
@@ -99,8 +112,8 @@ class OutputPage {
                $this->mScripts .= "<script type=\"$wgJsMimeType\">/*<![CDATA[*/\n$script\n/*]]>*/</script>";
        }
 
-       function getScript() { 
-               return $this->mScripts . $this->getHeadItems(); 
+       function getScript() {
+               return $this->mScripts . $this->getHeadItems();
        }
 
        function getHeadItems() {
@@ -145,18 +158,17 @@ class OutputPage {
         */
        function checkLastModified ( $timestamp ) {
                global $wgCachePages, $wgCacheEpoch, $wgUser, $wgRequest;
-               $fname = 'OutputPage::checkLastModified';
 
                if ( !$timestamp || $timestamp == '19700101000000' ) {
-                       wfDebug( "$fname: CACHE DISABLED, NO TIMESTAMP\n" );
+                       wfDebug( __METHOD__ . ": CACHE DISABLED, NO TIMESTAMP\n" );
                        return;
                }
                if( !$wgCachePages ) {
-                       wfDebug( "$fname: CACHE DISABLED\n", false );
+                       wfDebug( __METHOD__ . ": CACHE DISABLED\n", false );
                        return;
                }
                if( $wgUser->getOption( 'nocache' ) ) {
-                       wfDebug( "$fname: USER DISABLED CACHE\n", false );
+                       wfDebug( __METHOD__ . ": USER DISABLED CACHE\n", false );
                        return;
                }
 
@@ -168,34 +180,34 @@ class OutputPage {
                        # Wed, 20 Aug 2003 06:51:19 GMT; length=5202
                        # this breaks strtotime().
                        $modsince = preg_replace( '/;.*$/', '', $_SERVER["HTTP_IF_MODIFIED_SINCE"] );
-                       
+
                        wfSuppressWarnings(); // E_STRICT system time bitching
                        $modsinceTime = strtotime( $modsince );
                        wfRestoreWarnings();
-                       
+
                        $ismodsince = wfTimestamp( TS_MW, $modsinceTime ? $modsinceTime : 1 );
-                       wfDebug( "$fname: -- client send If-Modified-Since: " . $modsince . "\n", false );
-                       wfDebug( "$fname: --  we might send Last-Modified : $lastmod\n", false );
+                       wfDebug( __METHOD__ . ": -- client send If-Modified-Since: " . $modsince . "\n", false );
+                       wfDebug( __METHOD__ . ": --  we might send Last-Modified : $lastmod\n", false );
                        if( ($ismodsince >= $timestamp ) && $wgUser->validateCache( $ismodsince ) && $ismodsince >= $wgCacheEpoch ) {
                                # Make sure you're in a place you can leave when you call us!
                                $wgRequest->response()->header( "HTTP/1.0 304 Not Modified" );
                                $this->mLastModified = $lastmod;
                                $this->sendCacheControl();
-                               wfDebug( "$fname: CACHED client: $ismodsince ; user: $wgUser->mTouched ; page: $timestamp ; site $wgCacheEpoch\n", false );
+                               wfDebug( __METHOD__ . ": CACHED client: $ismodsince ; user: $wgUser->mTouched ; page: $timestamp ; site $wgCacheEpoch\n", false );
                                $this->disable();
-                               
+
                                // Don't output a compressed blob when using ob_gzhandler;
                                // it's technically against HTTP spec and seems to confuse
                                // Firefox when the response gets split over two packets.
                                wfClearOutputBuffers();
-                               
+
                                return true;
                        } else {
-                               wfDebug( "$fname: READY  client: $ismodsince ; user: $wgUser->mTouched ; page: $timestamp ; site $wgCacheEpoch\n", false );
+                               wfDebug( __METHOD__ . ": READY  client: $ismodsince ; user: $wgUser->mTouched ; page: $timestamp ; site $wgCacheEpoch\n", false );
                                $this->mLastModified = $lastmod;
                        }
                } else {
-                       wfDebug( "$fname: client did not send If-Modified-Since header\n", false );
+                       wfDebug( __METHOD__ . ": client did not send If-Modified-Since header\n", false );
                        $this->mLastModified = $lastmod;
                }
        }
@@ -228,6 +240,7 @@ class OutputPage {
        public function getHTMLTitle() { return $this->mHTMLtitle; }
        public function getPageTitle() { return $this->mPagetitle; }
        public function setSubtitle( $str ) { $this->mSubtitle = /*$this->parse(*/$str/*)*/; } // @bug 2514
+       public function appendSubtitle( $str ) { $this->mSubtitle .= /*$this->parse(*/$str/*)*/; } // @bug 2514
        public function getSubtitle() { return $this->mSubtitle; }
        public function isArticle() { return $this->mIsarticle; }
        public function setPrintable() { $this->mPrintable = true; }
@@ -273,12 +286,10 @@ class OutputPage {
        public function addCategoryLinks( $categories ) {
                global $wgUser, $wgContLang;
 
-               if ( !is_array( $categories ) ) {
-                       return;
-               }
-               if ( count( $categories ) == 0 ) {
+               if ( !is_array( $categories ) || count( $categories ) == 0 ) {
                        return;
                }
+
                # Add the links to a LinkBatch
                $arr = array( NS_CATEGORY => $categories );
                $lb = new LinkBatch;
@@ -287,28 +298,32 @@ class OutputPage {
                # Fetch existence plus the hiddencat property
                $dbr = wfGetDB( DB_SLAVE );
                $pageTable = $dbr->tableName( 'page' );
-               $propsTable = $dbr->tableName( 'page_props' );
                $where = $lb->constructSet( 'page', $dbr );
-               $sql = "SELECT page_id, page_namespace, page_title, pp_value FROM $pageTable LEFT JOIN $propsTable " . 
-                       " ON pp_propname='hiddencat' AND pp_page=page_id WHERE $where";
+               $propsTable = $dbr->tableName( 'page_props' );
+               $sql = "SELECT page_id, page_namespace, page_title, page_len, page_is_redirect, pp_value
+                       FROM $pageTable LEFT JOIN $propsTable ON pp_propname='hiddencat' AND pp_page=page_id WHERE $where";
                $res = $dbr->query( $sql, __METHOD__ );
 
                # Add the results to the link cache
                $lb->addResultToCache( LinkCache::singleton(), $res );
 
-               # Remove categories with hiddencat
+               # 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 ) ) {
-                               unset( $categories[$row->page_title] );
+                               $categories[$row->page_title] = 'hidden';
                        }
                }
-               
+
                # Add the remaining categories to the skin
                $sk = $wgUser->getSkin();
-               foreach ( $categories as $category => $unused ) {
+               foreach ( $categories as $category => $type ) {
                        $title = Title::makeTitleSafe( NS_CATEGORY, $category );
                        $text = $wgContLang->convertHtml( $title->getText() );
-                       $this->mCategoryLinks[] = $sk->makeLinkObj( $title, $text );
+                       $this->mCategoryLinks[$type][] = $sk->makeLinkObj( $title, $text );
                }
        }
 
@@ -330,6 +345,7 @@ class OutputPage {
 
        /* @deprecated */
        public function setParserOptions( $options ) {
+               wfDeprecated( __METHOD__ );
                return $this->parserOptions( $options );
        }
 
@@ -375,22 +391,21 @@ class OutputPage {
        public function addWikiTextTitle($text, &$title, $linestart, $tidy = false) {
                global $wgParser;
 
-               $fname = 'OutputPage:addWikiTextTitle';
-               wfProfileIn($fname);
+               wfProfileIn( __METHOD__ );
 
-               wfIncrStats('pcache_not_possible');
+               wfIncrStats( 'pcache_not_possible' );
 
                $popts = $this->parserOptions();
-               $oldTidy = $popts->setTidy($tidy);
+               $oldTidy = $popts->setTidy( $tidy );
 
                $parserOutput = $wgParser->parse( $text, $title, $popts,
                        $linestart, true, $this->mRevisionId );
-                       
+
                $popts->setTidy( $oldTidy );
 
                $this->addParserOutput( $parserOutput );
 
-               wfProfileOut($fname);
+               wfProfileOut( __METHOD__ );
        }
 
        /**
@@ -410,7 +425,7 @@ class OutputPage {
                $this->mHeadItems = array_merge( $this->mHeadItems, (array)$parserOutput->mHeadItems );
                // Versioning...
                $this->mTemplateIds += (array)$parserOutput->mTemplateIds;
-               
+
                // Display title
                if( ( $dt = $parserOutput->getDisplayTitle() ) !== false )
                        $this->setPageTitle( $dt );
@@ -450,13 +465,15 @@ class OutputPage {
        public function addPrimaryWikiText( $text, $article, $cache = true ) {
                global $wgParser, $wgUser;
 
+               wfDeprecated( __METHOD__ );
+
                $popts = $this->parserOptions();
                $popts->setTidy(true);
                $parserOutput = $wgParser->parse( $text, $article->mTitle,
                        $popts, true, true, $this->mRevisionId );
                $popts->setTidy(false);
                if ( $cache && $article && $parserOutput->getCacheTime() != -1 ) {
-                       $parserCache =& ParserCache::singleton();
+                       $parserCache = ParserCache::singleton();
                        $parserCache->save( $parserOutput, $article, $wgUser );
                }
 
@@ -468,6 +485,7 @@ class OutputPage {
         */
        public function addSecondaryWikiText( $text, $linestart = true ) {
                global $wgTitle;
+               wfDeprecated( __METHOD__ );
                $this->addWikiTextTitleTidy($text, $wgTitle, $linestart);
        }
 
@@ -516,7 +534,7 @@ class OutputPage {
         * @return bool True if successful, else false.
         */
        public function tryParserCache( &$article, $user ) {
-               $parserCache =& ParserCache::singleton();
+               $parserCache = ParserCache::singleton();
                $parserOutput = $parserCache->get( $article, $user );
                if ( $parserOutput !== false ) {
                        $this->addParserOutput( $parserOutput );
@@ -542,11 +560,20 @@ class OutputPage {
        }
 
        function getCacheVaryCookies() {
-               global $wgCookiePrefix;
-               return array( 
-                       "{$wgCookiePrefix}Token",
-                       "{$wgCookiePrefix}LoggedOut",
-                       session_name() );
+               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;
        }
 
        function uncacheableBecauseRequestVars() {
@@ -596,7 +623,6 @@ class OutputPage {
 
        public function sendCacheControl() {
                global $wgUseSquid, $wgUseESI, $wgUseETag, $wgSquidMaxage, $wgRequest;
-               $fname = 'OutputPage::sendCacheControl';
 
                $response = $wgRequest->response();
                if ($wgUseETag && $this->mETag)
@@ -617,7 +643,7 @@ class OutputPage {
                                        # We'll purge the proxy cache explicitly, but require end user agents
                                        # to revalidate against the proxy on each visit.
                                        # Surrogate-Control controls our Squid, Cache-Control downstream caches
-                                       wfDebug( "$fname: proxy caching with ESI; {$this->mLastModified} **\n", false );
+                                       wfDebug( __METHOD__ . ": proxy caching with ESI; {$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.'+'.$this->mSquidMaxage.', content="ESI/1.0"');
@@ -627,7 +653,7 @@ class OutputPage {
                                        # to revalidate against the proxy on each visit.
                                        # IMPORTANT! The Squid needs to replace the Cache-Control header with
                                        # Cache-Control: s-maxage=0, must-revalidate, max-age=0
-                                       wfDebug( "$fname: local proxy caching; {$this->mLastModified} **\n", false );
+                                       wfDebug( __METHOD__ . ": local proxy caching; {$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' );
@@ -635,13 +661,13 @@ class OutputPage {
                        } else {
                                # We do want clients to cache if they can, but they *must* check for updates
                                # on revisiting the page.
-                               wfDebug( "$fname: private caching; {$this->mLastModified} **\n", false );
+                               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( "$fname: no caching **\n", false );
+                       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.
@@ -658,14 +684,14 @@ class OutputPage {
        public function output() {
                global $wgUser, $wgOutputEncoding, $wgRequest;
                global $wgContLanguageCode, $wgDebugRedirects, $wgMimeType;
-               global $wgJsMimeType, $wgStylePath, $wgUseAjax, $wgAjaxSearch, $wgAjaxWatch;
-               global $wgServer, $wgStyleVersion;
+               global $wgJsMimeType, $wgUseAjax, $wgAjaxSearch, $wgAjaxWatch;
+               global $wgServer, $wgEnableMWSuggest;
 
                if( $this->mDoNothing ){
                        return;
                }
-               $fname = 'OutputPage::output';
-               wfProfileIn( $fname );
+
+               wfProfileIn( __METHOD__ );
 
                if ( '' != $this->mRedirect ) {
                        # Standards require redirect URLs to be absolute
@@ -688,7 +714,7 @@ class OutputPage {
                        } else {
                                $wgRequest->response()->header( 'Location: '.$this->mRedirect );
                        }
-                       wfProfileOut( $fname );
+                       wfProfileOut( __METHOD__ );
                        return;
                }
                elseif ( $this->mStatusCode )
@@ -749,20 +775,27 @@ class OutputPage {
                $sk = $wgUser->getSkin();
 
                if ( $wgUseAjax ) {
-                       $this->addScript( "<script type=\"{$wgJsMimeType}\" src=\"{$wgStylePath}/common/ajax.js?$wgStyleVersion\"></script>\n" );
+                       $this->addScriptFile( 'ajax.js' );
 
                        wfRunHooks( 'AjaxAddScript', array( &$this ) );
 
                        if( $wgAjaxSearch && $wgUser->getBoolOption( 'ajaxsearch' ) ) {
-                               $this->addScript( "<script type=\"{$wgJsMimeType}\" src=\"{$wgStylePath}/common/ajaxsearch.js?$wgStyleVersion\"></script>\n" );
+                               $this->addScriptFile( 'ajaxsearch.js' );
                                $this->addScript( "<script type=\"{$wgJsMimeType}\">hookEvent(\"load\", sajax_onload);</script>\n" );
                        }
 
                        if( $wgAjaxWatch && $wgUser->isLoggedIn() ) {
-                               $this->addScript( "<script type=\"{$wgJsMimeType}\" src=\"{$wgStylePath}/common/ajaxwatch.js?$wgStyleVersion\"></script>\n" );
+                               $this->addScriptFile( 'ajaxwatch.js' );
+                       }
+                       
+                       if ( $wgEnableMWSuggest && !$wgUser->getOption( 'disablesuggest', false ) ){
+                               $this->addScriptFile( 'mwsuggest.js' );
                        }
                }
-
+               
+               if( $wgUser->getBoolOption( 'editsectiononrightclick' ) ) {
+                       $this->addScriptFile( 'rightclickedit.js' );
+               }
 
 
                # Buffer output; final headers may depend on later processing
@@ -777,6 +810,10 @@ class OutputPage {
                if ($this->mArticleBodyOnly) {
                        $this->out($this->mBodytext);
                } else {
+                       // 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( $this );
                        wfProfileOut( 'Output-skin' );
@@ -784,7 +821,7 @@ class OutputPage {
 
                $this->sendCacheControl();
                ob_end_flush();
-               wfProfileOut( $fname );
+               wfProfileOut( __METHOD__ );
        }
 
        /**
@@ -824,6 +861,7 @@ class OutputPage {
         * @deprecated
         */
        public function reportTime() {
+               wfDeprecated( __METHOD__ );
                $time = wfReportTime();
                return $time;
        }
@@ -885,8 +923,8 @@ class OutputPage {
 
                # Don't auto-return to special pages
                if( $return ) {
-                       $return = $wgTitle->getNamespace() > -1 ? $wgTitle->getPrefixedText() : NULL;
-                       $this->returnToMain( false, $return );
+                       $return = $wgTitle->getNamespace() > -1 ? $wgTitle : NULL;
+                       $this->returnToMain( null, $return );
                }
        }
 
@@ -909,12 +947,12 @@ class OutputPage {
                $this->enableClientCache( false );
                $this->mRedirect = '';
                $this->mBodytext = '';
-               
+
                array_unshift( $params, 'parse' );
                array_unshift( $params, $msg );
                $this->addHtml( call_user_func_array( 'wfMsgExt', $params ) );
-               
-               $this->returnToMain( false );
+
+               $this->returnToMain();
        }
 
        /**
@@ -922,7 +960,7 @@ class OutputPage {
         *
         * @param array $errors Error message keys
         */
-       public function showPermissionsErrorPage( $errors )
+       public function showPermissionsErrorPage( $errors, $action = null )
        {
                global $wgTitle;
 
@@ -935,14 +973,15 @@ class OutputPage {
                $this->enableClientCache( false );
                $this->mRedirect = '';
                $this->mBodytext = '';
-               $this->addWikiText( $this->formatPermissionsErrorMessage( $errors ) );
+               $this->addWikiText( $this->formatPermissionsErrorMessage( $errors, $action ) );
        }
 
        /** @deprecated */
        public function errorpage( $title, $msg ) {
+               wfDeprecated( __METHOD__ );
                throw new ErrorPageError( $title, $msg );
        }
-               
+
        /**
         * Display an error page indicating that a given version of MediaWiki is
         * required to use it
@@ -999,7 +1038,7 @@ class OutputPage {
                                $message = wfMsgHtml( 'badaccess-groups', $groups );
                }
                $this->addHtml( $message );
-               $this->returnToMain( false );
+               $this->returnToMain();
        }
 
        /**
@@ -1030,22 +1069,22 @@ class OutputPage {
                }
 
                $skin = $wgUser->getSkin();
-               
+
                $this->setPageTitle( wfMsg( 'loginreqtitle' ) );
                $this->setHtmlTitle( wfMsg( 'errorpagetitle' ) );
                $this->setRobotPolicy( 'noindex,nofollow' );
                $this->setArticleFlag( false );
-               
+
                $loginTitle = SpecialPage::getTitleFor( 'Userlogin' );
                $loginLink = $skin->makeKnownLinkObj( $loginTitle, wfMsgHtml( 'loginreqlink' ), 'returnto=' . $wgTitle->getPrefixedUrl() );
                $this->addHtml( wfMsgWikiHtml( 'loginreqpagetext', $loginLink ) );
                $this->addHtml( "\n<!--" . $wgTitle->getPrefixedUrl() . "-->" );
-               
+
                # Don't return to the main page if the user can't read it
                # otherwise we'll end up in a pointless loop
                $mainPage = Title::newMainPage();
                if( $mainPage->userCanRead() )
-                       $this->returnToMain( true, $mainPage );
+                       $this->returnToMain( null, $mainPage );
        }
 
        /** @deprecated */
@@ -1057,8 +1096,14 @@ class OutputPage {
         * @param array $errors An array of arrays returned by Title::getUserPermissionsErrors
         * @return string The wikitext error-messages, formatted into a list.
         */
-       public function formatPermissionsErrorMessage( $errors ) {
-               $text = wfMsgNoTrans( 'permissionserrorstext', count( $errors ) ) . "\n\n";
+       public function formatPermissionsErrorMessage( $errors, $action = null ) {
+               if ($action == null) {
+                       $text = wfMsgNoTrans( 'permissionserrorstext', count($errors)). "\n\n";
+               } else {
+                       $action_desc = wfMsg( "right-$action" );
+                       $action_desc[0] = strtolower($action_desc[0]);
+                       $text = wfMsgNoTrans( 'permissionserrorstext-withaction', count($errors), $action_desc ) . "\n\n";
+               }
 
                if (count( $errors ) > 1) {
                        $text .= '<ul class="permissions-errors">' . "\n";
@@ -1096,8 +1141,8 @@ class OutputPage {
         * @param bool   $protected Is this a permissions error?
         * @param array  $reasons   List of reasons for this error, as returned by Title::getUserPermissionsErrors().
         */
-       public function readOnlyPage( $source = null, $protected = false, $reasons = array() ) {
-               global $wgUser, $wgReadOnlyFile, $wgReadOnly, $wgTitle;
+       public function readOnlyPage( $source = null, $protected = false, $reasons = array(), $action = null ) {
+               global $wgUser, $wgTitle;
                $skin = $wgUser->getSkin();
 
                $this->setRobotpolicy( 'noindex,nofollow' );
@@ -1117,30 +1162,25 @@ class OutputPage {
                        } else {
                                $this->setPageTitle( wfMsg( 'badaccess' ) );
                        }
-                       $this->addWikiText( $this->formatPermissionsErrorMessage( $reasons ) );
+                       $this->addWikiText( $this->formatPermissionsErrorMessage( $reasons, $action ) );
                } else {
                        // Wiki is read only
                        $this->setPageTitle( wfMsg( 'readonly' ) );
-                       if ( $wgReadOnly ) {
-                               $reason = $wgReadOnly;
-                       } else {
-                               // Should not happen, user should have called wfReadOnly() first
-                               $reason = file_get_contents( $wgReadOnlyFile );
-                       }
+                       $reason = wfReadOnlyReason();
                        $this->addWikiMsg( 'readonlytext', $reason );
                }
 
                // Show source, if supplied
                if( is_string( $source ) ) {
                        $this->addWikiMsg( 'viewsourcetext' );
-                       $text = wfOpenElement( 'textarea',
+                       $text = Xml::openElement( 'textarea',
                                                array( 'id'   => 'wpTextbox1',
                                                       'name' => 'wpTextbox1',
                                                       'cols' => $wgUser->getOption( 'cols' ),
                                                       'rows' => $wgUser->getOption( 'rows' ),
                                                       'readonly' => 'readonly' ) );
                        $text .= htmlspecialchars( $source );
-                       $text .= wfCloseElement( 'textarea' );
+                       $text .= Xml::closeElement( 'textarea' );
                        $this->addHTML( $text );
 
                        // Show templates used by this article
@@ -1153,37 +1193,43 @@ class OutputPage {
                # link to it.  After all, you just tried editing it and couldn't, so
                # what's there to do there?
                if( $wgTitle->exists() ) {
-                       $this->returnToMain( false, $wgTitle );
+                       $this->returnToMain( null, $wgTitle );
                }
        }
 
        /** @deprecated */
        public function fatalError( $message ) {
-               throw new FatalError( $message ); 
+               wfDeprecated( __METHOD__ );
+               throw new FatalError( $message );
        }
-       
+
        /** @deprecated */
        public function unexpectedValueError( $name, $val ) {
+               wfDeprecated( __METHOD__ );
                throw new FatalError( wfMsg( 'unexpected', $name, $val ) );
        }
 
        /** @deprecated */
        public function fileCopyError( $old, $new ) {
+               wfDeprecated( __METHOD__ );
                throw new FatalError( wfMsg( 'filecopyerror', $old, $new ) );
        }
 
        /** @deprecated */
        public function fileRenameError( $old, $new ) {
+               wfDeprecated( __METHOD__ );
                throw new FatalError( wfMsg( 'filerenameerror', $old, $new ) );
        }
 
        /** @deprecated */
        public function fileDeleteError( $name ) {
+               wfDeprecated( __METHOD__ );
                throw new FatalError( wfMsg( 'filedeleteerror', $name ) );
        }
 
        /** @deprecated */
        public function fileNotFoundError( $name ) {
+               wfDeprecated( __METHOD__ );
                throw new FatalError( wfMsg( 'filenotfound', $name ) );
        }
 
@@ -1236,11 +1282,11 @@ class OutputPage {
         */
        public function returnToMain( $unused = null, $returnto = NULL ) {
                global $wgRequest;
-               
+
                if ( $returnto == NULL ) {
                        $returnto = $wgRequest->getText( 'returnto' );
                }
-               
+
                if ( '' === $returnto ) {
                        $returnto = Title::newMainPage();
                }
@@ -1371,7 +1417,7 @@ class OutputPage {
                        }
                        $ret .= " />\n";
                }
-               
+
                if( $wgFeed ) {
                        foreach( $this->getSyndicationLinks() as $format => $link ) {
                                # Use the page name for the title (accessed through $wgTitle since
@@ -1379,13 +1425,13 @@ class OutputPage {
                                # with having the same name for different feeds corresponding to
                                # the same page, but we can't avoid that at this low a level.
                                global $wgTitle;
-       
+
                                $ret .= $this->feedLink(
                                        $format,
                                        $link,
                                        wfMsg( "page-{$format}-feed", $wgTitle->getPrefixedText() ) ); # Used messages: 'page-rss-feed' and 'page-atom-feed' (for an easier grep)
                        }
-       
+
                        # Recent changes feed should appear on every page
                        # Put it after the per-page feed to avoid changing existing behavior.
                        # It's still available, probably via a menu in your browser.
@@ -1403,7 +1449,7 @@ class OutputPage {
 
                return $ret;
        }
-       
+
        /**
         * Return URLs for each supported syndication format for this page.
         * @return array associating format keys with URLs
@@ -1411,7 +1457,7 @@ class OutputPage {
        public function getSyndicationLinks() {
                global $wgTitle, $wgFeedClasses;
                $links = array();
-               
+
                if( $this->isSyndicated() ) {
                        if( is_string( $this->getFeedAppendQuery() ) ) {
                                $appendQuery = "&" . $this->getFeedAppendQuery();
@@ -1425,7 +1471,7 @@ class OutputPage {
                }
                return $links;
        }
-       
+
        /**
         * Generate a <link rel/> for an RSS feed.
         */
@@ -1442,7 +1488,7 @@ class OutputPage {
         * for when rate limiting has triggered.
         */
        public function rateLimited() {
-               global $wgOut, $wgTitle;
+               global $wgTitle;
 
                $this->setPageTitle(wfMsg('actionthrottled'));
                $this->setRobotPolicy( 'noindex,follow' );
@@ -1453,9 +1499,9 @@ class OutputPage {
                $this->setStatusCode(503);
                $this->addWikiMsg( 'actionthrottledtext' );
 
-               $this->returnToMain( false, $wgTitle );
+               $this->returnToMain( null, $wgTitle );
        }
-       
+
        /**
         * Show an "add new section" link?
         *
@@ -1464,7 +1510,7 @@ class OutputPage {
        public function showNewSectionLink() {
                return $this->mNewSectionLink;
        }
-       
+
        /**
         * Show a warning about slave lag
         *
@@ -1511,21 +1557,23 @@ class OutputPage {
        }
 
        /**
-        * This function takes a number of message/argument specifications, wraps them in 
+        * 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 
+        * 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 an arrays, in which case the first element is the message name,
         * and subsequent elements are the parameters to that message.
         *
         * The special named parameter 'options' in a message specification array is passed
-        * through to the $options parameter of wfMsgExt(). 
+        * through to the $options parameter of wfMsgExt().
+        *
+        * Don't use this for messages that are not in users interface language.
         *
         * For example:
         *
         *    $wgOut->wrapWikiMsg( '<div class="error">$1</div>', 'some-error' );
-        * 
+        *
         * Is equivalent to:
         *
         *    $wgOut->addWikiText( '<div class="error">' . wfMsgNoTrans( 'some-error' ) . '</div>' );
@@ -1550,6 +1598,6 @@ class OutputPage {
                        }
                        $s = str_replace( '$' . ($n+1), wfMsgExt( $name, $options, $args ), $s );
                }
-               $this->addHTML( $this->parse( $s ) );
+               $this->addHTML( $this->parse( $s, /*linestart*/true, /*uilang*/true ) );
        }
 }