MediaWiki 1.7.1 wiederhergestellt

1 files changed, 1078 insertions, 0 deletions

diff --git a/includes/OutputPage.php b/includes/OutputPage.php
new file mode 100644
index 00000000..31a0781a
--- /dev/null
+++ b/includes/OutputPage.php
@@ -0,0 +1,1078 @@
+<?php
+if ( ! defined( 'MEDIAWIKI' ) )
+	die( 1 );
+/**
+ * @package MediaWiki
+ */
+
+/**
+ * @todo document
+ * @package MediaWiki
+ */
+class OutputPage {
+	var $mMetatags, $mKeywords;
+	var $mLinktags, $mPagetitle, $mBodytext, $mDebugtext;
+	var $mHTMLtitle, $mRobotpolicy, $mIsarticle, $mPrintable;
+	var $mSubtitle, $mRedirect, $mStatusCode;
+	var $mLastModified, $mETag, $mCategoryLinks;
+	var $mScripts, $mLinkColours, $mPageLinkTitle;
+
+	var $mSuppressQuickbar;
+	var $mOnloadHandler;
+	var $mDoNothing;
+	var $mContainsOldMagic, $mContainsNewMagic;
+	var $mIsArticleRelated;
+	var $mParserOptions;
+	var $mShowFeedLinks = false;
+	var $mEnableClientCache = true;
+	var $mArticleBodyOnly = false;
+	
+	var $mNewSectionLink = false;
+	var $mNoGallery = false;
+
+	/**
+	 * Constructor
+	 * Initialise private variables
+	 */
+	function OutputPage() {
+		$this->mMetatags = $this->mKeywords = $this->mLinktags = array();
+		$this->mHTMLtitle = $this->mPagetitle = $this->mBodytext =
+		$this->mRedirect = $this->mLastModified =
+		$this->mSubtitle = $this->mDebugtext = $this->mRobotpolicy =
+		$this->mOnloadHandler = $this->mPageLinkTitle = '';
+		$this->mIsArticleRelated = $this->mIsarticle = $this->mPrintable = true;
+		$this->mSuppressQuickbar = $this->mPrintable = false;
+		$this->mLanguageLinks = array();
+		$this->mCategoryLinks = array();
+		$this->mDoNothing = false;
+		$this->mContainsOldMagic = $this->mContainsNewMagic = 0;
+		$this->mParserOptions = ParserOptions::newFromUser( $temp = NULL );
+		$this->mSquidMaxage = 0;
+		$this->mScripts = '';
+		$this->mETag = false;
+		$this->mRevisionId = null;
+		$this->mNewSectionLink = false;
+	}
+	
+	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;
+	}
+
+	function setStatusCode( $statusCode ) { $this->mStatusCode = $statusCode; }
+
+	# To add an http-equiv meta tag, precede the name with "http:"
+	function addMeta( $name, $val ) { array_push( $this->mMetatags, array( $name, $val ) ); }
+	function addKeyword( $text ) { array_push( $this->mKeywords, $text ); }
+	function addScript( $script ) { $this->mScripts .= $script; }
+	function getScript() { return $this->mScripts; }
+
+	function setETag($tag) { $this->mETag = $tag; }
+	function setArticleBodyOnly($only) { $this->mArticleBodyOnly = $only; }
+	function getArticleBodyOnly($only) { return $this->mArticleBodyOnly; }
+
+	function addLink( $linkarr ) {
+		# $linkarr should be an associative array of attributes. We'll escape on output.
+		array_push( $this->mLinktags, $linkarr );
+	}
+
+	function addMetadataLink( $linkarr ) {
+		# note: buggy CC software only reads first "meta" link
+		static $haveMeta = false;
+		$linkarr['rel'] = ($haveMeta) ? 'alternate meta' : 'meta';
+		$this->addLink( $linkarr );
+		$haveMeta = true;
+	}
+
+	/**
+	 * checkLastModified tells the client to use the client-cached page if
+	 * possible. If sucessful, the OutputPage is disabled so that
+	 * any future call to OutputPage->output() have no effect. The method
+	 * returns true iff cache-ok headers was sent.
+	 */
+	function checkLastModified ( $timestamp ) {
+		global $wgCachePages, $wgCacheEpoch, $wgUser;
+		$fname = 'OutputPage::checkLastModified';
+
+		if ( !$timestamp || $timestamp == '19700101000000' ) {
+			wfDebug( "$fname: CACHE DISABLED, NO TIMESTAMP\n" );
+			return;
+		}
+		if( !$wgCachePages ) {
+			wfDebug( "$fname: CACHE DISABLED\n", false );
+			return;
+		}
+		if( $wgUser->getOption( 'nocache' ) ) {
+			wfDebug( "$fname: USER DISABLED CACHE\n", false );
+			return;
+		}
+
+		$timestamp=wfTimestamp(TS_MW,$timestamp);
+		$lastmod = wfTimestamp( TS_RFC2822, max( $timestamp, $wgUser->mTouched, $wgCacheEpoch ) );
+
+		if( !empty( $_SERVER['HTTP_IF_MODIFIED_SINCE'] ) ) {
+			# IE sends sizes after the date like this:
+			# Wed, 20 Aug 2003 06:51:19 GMT; length=5202
+			# this breaks strtotime().
+			$modsince = preg_replace( '/;.*$/', '', $_SERVER["HTTP_IF_MODIFIED_SINCE"] );
+			$modsinceTime = strtotime( $modsince );
+			$ismodsince = wfTimestamp( TS_MW, $modsinceTime ? $modsinceTime : 1 );
+			wfDebug( "$fname: -- client send If-Modified-Since: " . $modsince . "\n", false );
+			wfDebug( "$fname: --  we might send Last-Modified : $lastmod\n", false );
+			if( ($ismodsince >= $timestamp ) && $wgUser->validateCache( $ismodsince ) && $ismodsince >= $wgCacheEpoch ) {
+				# Make sure you're in a place you can leave when you call us!
+				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 );
+				$this->disable();
+				@ob_end_clean(); // Don't output compressed blob
+				return true;
+			} else {
+				wfDebug( "$fname: 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 );
+			$this->mLastModified = $lastmod;
+		}
+	}
+
+	function getPageTitleActionText () {
+		global $action;
+		switch($action) {
+			case 'edit':
+			case 'delete':
+			case 'protect':
+			case 'unprotect':
+			case 'watch':
+			case 'unwatch':
+				// Display title is already customized
+				return '';
+			case 'history':
+				return wfMsg('history_short');
+			case 'submit':
+				// FIXME: bug 2735; not correct for special pages etc
+				return wfMsg('preview');
+			case 'info':
+				return wfMsg('info_short');
+			default:
+				return '';
+		}
+	}
+
+	function setRobotpolicy( $str ) { $this->mRobotpolicy = $str; }
+	function setHTMLTitle( $name ) {$this->mHTMLtitle = $name; }
+	function setPageTitle( $name ) {
+		global $action, $wgContLang;
+		$name = $wgContLang->convert($name, true);
+		$this->mPagetitle = $name;
+		if(!empty($action)) {
+			$taction =  $this->getPageTitleActionText();
+			if( !empty( $taction ) ) {
+				$name .= ' - '.$taction;
+			}
+		}
+
+		$this->setHTMLTitle( wfMsg( 'pagetitle', $name ) );
+	}
+	function getHTMLTitle() { return $this->mHTMLtitle; }
+	function getPageTitle() { return $this->mPagetitle; }
+	function setSubtitle( $str ) { $this->mSubtitle = /*$this->parse(*/$str/*)*/; } // @bug 2514
+	function getSubtitle() { return $this->mSubtitle; }
+	function isArticle() { return $this->mIsarticle; }
+	function setPrintable() { $this->mPrintable = true; }
+	function isPrintable() { return $this->mPrintable; }
+	function setSyndicated( $show = true ) { $this->mShowFeedLinks = $show; }
+	function isSyndicated() { return $this->mShowFeedLinks; }
+	function setOnloadHandler( $js ) { $this->mOnloadHandler = $js; }
+	function getOnloadHandler() { return $this->mOnloadHandler; }
+	function disable() { $this->mDoNothing = true; }
+
+	function setArticleRelated( $v ) {
+		$this->mIsArticleRelated = $v;
+		if ( !$v ) {
+			$this->mIsarticle = false;
+		}
+	}
+	function setArticleFlag( $v ) {
+		$this->mIsarticle = $v;
+		if ( $v ) {
+			$this->mIsArticleRelated = $v;
+		}
+	}
+
+	function isArticleRelated() { return $this->mIsArticleRelated; }
+
+	function getLanguageLinks() { return $this->mLanguageLinks; }
+	function addLanguageLinks($newLinkArray) {
+		$this->mLanguageLinks += $newLinkArray;
+	}
+	function setLanguageLinks($newLinkArray) {
+		$this->mLanguageLinks = $newLinkArray;
+	}
+
+	function getCategoryLinks() {
+		return $this->mCategoryLinks;
+	}
+
+	/**
+	 * Add an array of categories, with names in the keys
+	 */
+	function addCategoryLinks($categories) {
+		global $wgUser, $wgContLang;
+
+		if ( !is_array( $categories ) ) {
+			return;
+		}
+		# Add the links to the link cache in a batch
+		$arr = array( NS_CATEGORY => $categories );
+		$lb = new LinkBatch;
+		$lb->setArray( $arr );
+		$lb->execute();
+
+		$sk =& $wgUser->getSkin();
+		foreach ( $categories as $category => $arbitrary ) {
+			$title = Title::makeTitleSafe( NS_CATEGORY, $category );
+			$text = $wgContLang->convertHtml( $title->getText() );
+			$this->mCategoryLinks[] = $sk->makeLinkObj( $title, $text );
+		}
+	}
+
+	function setCategoryLinks($categories) {
+		$this->mCategoryLinks = array();
+		$this->addCategoryLinks($categories);
+	}
+
+	function suppressQuickbar() { $this->mSuppressQuickbar = true; }
+	function isQuickbarSuppressed() { return $this->mSuppressQuickbar; }
+
+	function addHTML( $text ) { $this->mBodytext .= $text; }
+	function clearHTML() { $this->mBodytext = ''; }
+	function getHTML() { return $this->mBodytext; }
+	function debug( $text ) { $this->mDebugtext .= $text; }
+
+	/* @deprecated */
+	function setParserOptions( $options ) {
+		return $this->ParserOptions( $options );
+	}
+
+	function ParserOptions( $options = null ) {
+		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 mixed $revid an integer, or NULL
+	 * @return mixed previous value
+	 */
+	function setRevisionId( $revid ) {
+		$val = is_null( $revid ) ? null : intval( $revid );
+		return wfSetVar( $this->mRevisionId, $val );
+	}
+
+	/**
+	 * Convert wikitext to HTML and add it to the buffer
+	 * Default assumes that the current page title will
+	 * be used.
+	 */
+	function addWikiText( $text, $linestart = true ) {
+		global $wgTitle;
+		$this->addWikiTextTitle($text, $wgTitle, $linestart);
+	}
+
+	function addWikiTextWithTitle($text, &$title, $linestart = true) {
+		$this->addWikiTextTitle($text, $title, $linestart);
+	}
+
+	function addWikiTextTitle($text, &$title, $linestart) {
+		global $wgParser;
+		$parserOutput = $wgParser->parse( $text, $title, $this->mParserOptions,
+			$linestart, true, $this->mRevisionId );
+		$this->addParserOutput( $parserOutput );
+	}
+
+	function addParserOutputNoText( &$parserOutput ) {
+		$this->mLanguageLinks += $parserOutput->getLanguageLinks();
+		$this->addCategoryLinks( $parserOutput->getCategories() );
+		$this->mNewSectionLink = $parserOutput->getNewSection();
+		$this->addKeywords( $parserOutput );
+		if ( $parserOutput->getCacheTime() == -1 ) {
+			$this->enableClientCache( false );
+		}
+		if ( $parserOutput->mHTMLtitle != "" ) {
+			$this->mPagetitle = $parserOutput->mHTMLtitle ;
+			$this->mSubtitle .= $parserOutput->mSubtitle ;
+		}
+	}
+
+	function addParserOutput( &$parserOutput ) {
+		$this->addParserOutputNoText( $parserOutput );
+		$this->addHTML( $parserOutput->getText() );
+	}
+
+	/**
+	 * Add wikitext to the buffer, assuming that this is the primary text for a page view
+	 * Saves the text into the parser cache if possible
+	 */
+	function addPrimaryWikiText( $text, $article, $cache = true ) {
+		global $wgParser, $wgUser;
+
+		$this->mParserOptions->setTidy(true);
+		$parserOutput = $wgParser->parse( $text, $article->mTitle,
+			$this->mParserOptions, true, true, $this->mRevisionId );
+		$this->mParserOptions->setTidy(false);
+		if ( $cache && $article && $parserOutput->getCacheTime() != -1 ) {
+			$parserCache =& ParserCache::singleton();
+			$parserCache->save( $parserOutput, $article, $wgUser );
+		}
+
+		$this->addParserOutputNoText( $parserOutput );
+		$text =	$parserOutput->getText();
+		$this->mNoGallery = $parserOutput->getNoGallery();
+		wfRunHooks( 'OutputPageBeforeHTML',array( &$this, &$text ) );
+		$parserOutput->setText( $text );
+		$this->addHTML( $parserOutput->getText() );
+	}
+
+	/**
+	 * For anything that isn't primary text or interface message
+	 */
+	function addSecondaryWikiText( $text, $linestart = true ) {
+		global $wgTitle;
+		$this->mParserOptions->setTidy(true);
+		$this->addWikiTextTitle($text, $wgTitle, $linestart);
+		$this->mParserOptions->setTidy(false);
+	}
+
+
+	/**
+	 * Add the output of a QuickTemplate to the output buffer
+	 * @param QuickTemplate $template
+	 */
+	function addTemplate( &$template ) {
+		ob_start();
+		$template->execute();
+		$this->addHTML( ob_get_contents() );
+		ob_end_clean();
+	}
+
+	/**
+	 * Parse wikitext and return the HTML.
+	 */
+	function parse( $text, $linestart = true, $interface = false ) {
+		global $wgParser, $wgTitle;
+		if ( $interface) { $this->mParserOptions->setInterfaceMessage(true); }
+		$parserOutput = $wgParser->parse( $text, $wgTitle, $this->mParserOptions,
+			$linestart, true, $this->mRevisionId );
+		if ( $interface) { $this->mParserOptions->setInterfaceMessage(false); }
+		return $parserOutput->getText();
+	}
+
+	/**
+	 * @param $article
+	 * @param $user
+	 *
+	 * @return bool
+	 */
+	function tryParserCache( &$article, $user ) {
+		$parserCache =& ParserCache::singleton();
+		$parserOutput = $parserCache->get( $article, $user );
+		if ( $parserOutput !== false ) {
+			$this->mLanguageLinks += $parserOutput->getLanguageLinks();
+			$this->addCategoryLinks( $parserOutput->getCategories() );
+			$this->addKeywords( $parserOutput );
+			$this->mNewSectionLink = $parserOutput->getNewSection();
+			$this->mNoGallery = $parserOutput->getNoGallery();
+			$text = $parserOutput->getText();
+			wfRunHooks( 'OutputPageBeforeHTML', array( &$this, &$text ) );
+			$this->addHTML( $text );
+			$t = $parserOutput->getTitleText();
+			if( !empty( $t ) ) {
+				$this->setPageTitle( $t );
+ 			}
+			return true;
+		} else {
+			return false;
+		}
+	}
+
+	/**
+	 * Set the maximum cache time on the Squid in seconds
+	 * @param $maxage
+	 */
+	function setSquidMaxage( $maxage ) {
+		$this->mSquidMaxage = $maxage;
+	}
+
+	/**
+	 * Use enableClientCache(false) to force it to send nocache headers
+	 * @param $state
+	 */
+	function enableClientCache( $state ) {
+		return wfSetVar( $this->mEnableClientCache, $state );
+	}
+
+	function uncacheableBecauseRequestvars() {
+		global $wgRequest;
+		return	$wgRequest->getText('useskin', false) === false
+			&& $wgRequest->getText('uselang', false) === false;
+	}
+
+	function sendCacheControl() {
+		global $wgUseSquid, $wgUseESI, $wgSquidMaxage;
+		$fname = 'OutputPage::sendCacheControl';
+
+		if ($this->mETag)
+			header("ETag: $this->mETag");
+
+		# don't serve compressed data to clients who can't handle it
+		# maintain different caches for logged-in users and non-logged in ones
+		header( 'Vary: Accept-Encoding, Cookie' );
+		if( !$this->uncacheableBecauseRequestvars() && $this->mEnableClientCache ) {
+			if( $wgUseSquid && ! isset( $_COOKIE[ini_get( 'session.name') ] ) &&
+			  ! $this->isPrintable() && $this->mSquidMaxage != 0 )
+			{
+				if ( $wgUseESI ) {
+					# We'll purge the proxy cache explicitly, but require end user agents
+					# to revalidate against the proxy on each visit.
+					# Surrogate-Control controls our Squid, Cache-Control downstream caches
+					wfDebug( "$fname: proxy caching with ESI; {$this->mLastModified} **\n", false );
+					# start with a shorter timeout for initial testing
+					# header( 'Surrogate-Control: max-age=2678400+2678400, content="ESI/1.0"');
+					header( 'Surrogate-Control: max-age='.$wgSquidMaxage.'+'.$this->mSquidMaxage.', content="ESI/1.0"');
+					header( 'Cache-Control: s-maxage=0, must-revalidate, max-age=0' );
+				} else {
+					# We'll purge the proxy cache for anons explicitly, but require end user agents
+					# to revalidate against the proxy on each visit.
+					# IMPORTANT! The Squid needs to replace the Cache-Control header with
+					# Cache-Control: s-maxage=0, must-revalidate, max-age=0
+					wfDebug( "$fname: local proxy caching; {$this->mLastModified} **\n", false );
+					# start with a shorter timeout for initial testing
+					# header( "Cache-Control: s-maxage=2678400, must-revalidate, max-age=0" );
+					header( 'Cache-Control: s-maxage='.$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( "$fname: private caching; {$this->mLastModified} **\n", false );
+				header( 'Expires: ' . gmdate( 'D, d M Y H:i:s', 0 ) . ' GMT' );
+				header( "Cache-Control: private, must-revalidate, max-age=0" );
+			}
+			if($this->mLastModified) header( "Last-modified: {$this->mLastModified}" );
+		} else {
+			wfDebug( "$fname: 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.
+			header( 'Expires: ' . gmdate( 'D, d M Y H:i:s', 0 ) . ' GMT' );
+			header( 'Cache-Control: no-cache, no-store, max-age=0, must-revalidate' );
+			header( 'Pragma: no-cache' );
+		}
+	}
+
+	/**
+	 * Finally, all the text has been munged and accumulated into
+	 * the object, let's actually output it:
+	 */
+	function output() {
+		global $wgUser, $wgOutputEncoding;
+		global $wgContLanguageCode, $wgDebugRedirects, $wgMimeType;
+		global $wgJsMimeType, $wgStylePath, $wgUseAjax, $wgScriptPath, $wgServer;
+
+		if( $this->mDoNothing ){
+			return;
+		}
+		$fname = 'OutputPage::output';
+		wfProfileIn( $fname );
+		$sk = $wgUser->getSkin();
+
+		if ( $wgUseAjax ) {
+			$this->addScript( "<script type=\"{$wgJsMimeType}\">
+				var wgScriptPath=\"{$wgScriptPath}\";
+				var wgServer=\"{$wgServer}\";
+			</script>" );
+			$this->addScript( "<script type=\"{$wgJsMimeType}\" src=\"{$wgStylePath}/common/ajax.js\"></script>\n" );
+		}
+
+		if ( '' != $this->mRedirect ) {
+			if( substr( $this->mRedirect, 0, 4 ) != 'http' ) {
+				# Standards require redirect URLs to be absolute
+				global $wgServer;
+				$this->mRedirect = $wgServer . $this->mRedirect;
+			}
+			if( $this->mRedirectCode == '301') {
+				if( !$wgDebugRedirects ) {
+					header("HTTP/1.1 {$this->mRedirectCode} Moved Permanently");
+				}
+				$this->mLastModified = wfTimestamp( TS_RFC2822 );
+			}
+
+			$this->sendCacheControl();
+
+			if( $wgDebugRedirects ) {
+				$url = htmlspecialchars( $this->mRedirect );
+				print "<html>\n<head>\n<title>Redirect</title>\n</head>\n<body>\n";
+				print "<p>Location: <a href=\"$url\">$url</a></p>\n";
+				print "</body>\n</html>\n";
+			} else {
+				header( 'Location: '.$this->mRedirect );
+			}
+			wfProfileOut( $fname );
+			return;
+		}
+		elseif ( $this->mStatusCode )
+		{
+			$statusMessage = array(
+				100 => 'Continue',
+				101 => 'Switching Protocols',
+				102 => 'Processing',
+				200 => 'OK',
+				201 => 'Created',
+				202 => 'Accepted',
+				203 => 'Non-Authoritative Information',
+				204 => 'No Content',
+				205 => 'Reset Content',
+				206 => 'Partial Content',
+				207 => 'Multi-Status',
+				300 => 'Multiple Choices',
+				301 => 'Moved Permanently',
+				302 => 'Found',
+				303 => 'See Other',
+				304 => 'Not Modified',
+				305 => 'Use Proxy',
+				307 => 'Temporary Redirect',
+				400 => 'Bad Request',
+				401 => 'Unauthorized',
+				402 => 'Payment Required',
+				403 => 'Forbidden',
+				404 => 'Not Found',
+				405 => 'Method Not Allowed',
+				406 => 'Not Acceptable',
+				407 => 'Proxy Authentication Required',
+				408 => 'Request Timeout',
+				409 => 'Conflict',
+				410 => 'Gone',
+				411 => 'Length Required',
+				412 => 'Precondition Failed',
+				413 => 'Request Entity Too Large',
+				414 => 'Request-URI Too Large',
+				415 => 'Unsupported Media Type',
+				416 => 'Request Range Not Satisfiable',
+				417 => 'Expectation Failed',
+				422 => 'Unprocessable Entity',
+				423 => 'Locked',
+				424 => 'Failed Dependency',
+				500 => 'Internal Server Error',
+				501 => 'Not Implemented',
+				502 => 'Bad Gateway',
+				503 => 'Service Unavailable',
+				504 => 'Gateway Timeout',
+				505 => 'HTTP Version Not Supported',
+				507 => 'Insufficient Storage'
+			);
+
+			if ( $statusMessage[$this->mStatusCode] )
+				header( 'HTTP/1.1 ' . $this->mStatusCode . ' ' . $statusMessage[$this->mStatusCode] );
+		}
+
+		# Buffer output; final headers may depend on later processing
+		ob_start();
+
+		# Disable temporary placeholders, so that the skin produces HTML
+		$sk->postParseLinkColour( false );
+
+		header( "Content-type: $wgMimeType; charset={$wgOutputEncoding}" );
+		header( 'Content-language: '.$wgContLanguageCode );
+
+		if ($this->mArticleBodyOnly) {
+			$this->out($this->mBodytext);
+		} else {
+			wfProfileIn( 'Output-skin' );
+			$sk->outputPage( $this );
+			wfProfileOut( 'Output-skin' );
+		}
+
+		$this->sendCacheControl();
+		ob_end_flush();
+		wfProfileOut( $fname );
+	}
+
+	function out( $ins ) {
+		global $wgInputEncoding, $wgOutputEncoding, $wgContLang;
+		if ( 0 == strcmp( $wgInputEncoding, $wgOutputEncoding ) ) {
+			$outs = $ins;
+		} else {
+			$outs = $wgContLang->iconv( $wgInputEncoding, $wgOutputEncoding, $ins );
+			if ( false === $outs ) { $outs = $ins; }
+		}
+		print $outs;
+	}
+
+	function setEncodings() {
+		global $wgInputEncoding, $wgOutputEncoding;
+		global $wgUser, $wgContLang;
+
+		$wgInputEncoding = strtolower( $wgInputEncoding );
+
+		if( $wgUser->getOption( 'altencoding' ) ) {
+			$wgContLang->setAltEncoding();
+			return;
+		}
+
+		if ( empty( $_SERVER['HTTP_ACCEPT_CHARSET'] ) ) {
+			$wgOutputEncoding = strtolower( $wgOutputEncoding );
+			return;
+		}
+		$wgOutputEncoding = $wgInputEncoding;
+	}
+
+	/**
+	 * Returns a HTML comment with the elapsed time since request.
+	 * This method has no side effects.
+	 * Use wfReportTime() instead.
+	 * @return string
+	 * @deprecated
+	 */
+	function reportTime() {
+		$time = wfReportTime();
+		return $time;
+	}
+
+	/**
+	 * Produce a "user is blocked" page
+	 */
+	function blockedPage( $return = true ) {
+		global $wgUser, $wgContLang, $wgTitle;
+
+		$this->setPageTitle( wfMsg( 'blockedtitle' ) );
+		$this->setRobotpolicy( 'noindex,nofollow' );
+		$this->setArticleRelated( false );
+
+		$id = $wgUser->blockedBy();
+		$reason = $wgUser->blockedFor();
+		$ip = wfGetIP();
+
+		if ( is_numeric( $id ) ) {
+			$name = User::whoIs( $id );
+		} else {
+			$name = $id;
+		}
+		$link = '[[' . $wgContLang->getNsText( NS_USER ) . ":{$name}|{$name}]]";
+
+		$this->addWikiText( wfMsg( 'blockedtext', $link, $reason, $ip, $name ) );
+		
+		# Don't auto-return to special pages
+		if( $return ) {
+			$return = $wgTitle->getNamespace() > -1 ? $wgTitle->getPrefixedText() : NULL;
+			$this->returnToMain( false, $return );
+		}
+	}
+
+	/**
+	 * Note: these arguments are keys into wfMsg(), not text!
+	 */
+	function showErrorPage( $title, $msg ) {
+		global $wgTitle;
+
+		$this->mDebugtext .= 'Original title: ' .
+		  $wgTitle->getPrefixedText() . "\n";
+		$this->setPageTitle( wfMsg( $title ) );
+		$this->setHTMLTitle( wfMsg( 'errorpagetitle' ) );
+		$this->setRobotpolicy( 'noindex,nofollow' );
+		$this->setArticleRelated( false );
+		$this->enableClientCache( false );
+		$this->mRedirect = '';
+
+		$this->mBodytext = '';
+		$this->addWikiText( wfMsg( $msg ) );
+		$this->returnToMain( false );
+	}
+
+	/** @obsolete */
+	function errorpage( $title, $msg ) {
+		throw new ErrorPageError( $title, $msg );
+	}
+		
+	/**
+	 * Display an error page indicating that a given version of MediaWiki is
+	 * required to use it
+	 *
+	 * @param mixed $version The version of MediaWiki needed to use the page
+	 */
+	function versionRequired( $version ) {
+		$this->setPageTitle( wfMsg( 'versionrequired', $version ) );
+		$this->setHTMLTitle( wfMsg( 'versionrequired', $version ) );
+		$this->setRobotpolicy( 'noindex,nofollow' );
+		$this->setArticleRelated( false );
+		$this->mBodytext = '';
+
+		$this->addWikiText( wfMsg( 'versionrequiredtext', $version ) );
+		$this->returnToMain();
+	}
+
+	/**
+	 * Display an error page noting that a given permission bit is required.
+	 * This should generally replace the sysopRequired, developerRequired etc.
+	 * @param string $permission key required
+	 */
+	function permissionRequired( $permission ) {
+		global $wgUser;
+
+		$this->setPageTitle( wfMsg( 'badaccess' ) );
+		$this->setHTMLTitle( wfMsg( 'errorpagetitle' ) );
+		$this->setRobotpolicy( 'noindex,nofollow' );
+		$this->setArticleRelated( false );
+		$this->mBodytext = '';
+
+		$sk = $wgUser->getSkin();
+		$ap = $sk->makeKnownLink( wfMsgForContent( 'administrators' ) );
+		$this->addHTML( wfMsgHtml( 'badaccesstext', $ap, $permission ) );
+		$this->returnToMain();
+	}
+
+	/**
+	 * @deprecated
+	 */
+	function sysopRequired() {
+		global $wgUser;
+
+		$this->setPageTitle( wfMsg( 'sysoptitle' ) );
+		$this->setHTMLTitle( wfMsg( 'errorpagetitle' ) );
+		$this->setRobotpolicy( 'noindex,nofollow' );
+		$this->setArticleRelated( false );
+		$this->mBodytext = '';
+
+		$sk = $wgUser->getSkin();
+		$ap = $sk->makeKnownLink( wfMsgForContent( 'administrators' ), '' );
+		$this->addHTML( wfMsgHtml( 'sysoptext', $ap ) );
+		$this->returnToMain();
+	}
+
+	/**
+	 * @deprecated
+	 */
+	function developerRequired() {
+		global $wgUser;
+
+		$this->setPageTitle( wfMsg( 'developertitle' ) );
+		$this->setHTMLTitle( wfMsg( 'errorpagetitle' ) );
+		$this->setRobotpolicy( 'noindex,nofollow' );
+		$this->setArticleRelated( false );
+		$this->mBodytext = '';
+
+		$sk = $wgUser->getSkin();
+		$ap = $sk->makeKnownLink( wfMsgForContent( 'administrators' ), '' );
+		$this->addHTML( wfMsgHtml( 'developertext', $ap ) );
+		$this->returnToMain();
+	}
+
+	/**
+	 * Produce the stock "please login to use the wiki" page
+	 */
+	function loginToUse() {
+		global $wgUser, $wgTitle, $wgContLang;
+		$skin = $wgUser->getSkin();
+		
+		$this->setPageTitle( wfMsg( 'loginreqtitle' ) );
+		$this->setHtmlTitle( wfMsg( 'errorpagetitle' ) );
+		$this->setRobotPolicy( 'noindex,nofollow' );
+		$this->setArticleFlag( false );
+		
+		$loginTitle = Title::makeTitle( NS_SPECIAL, 'Userlogin' );
+		$loginLink = $skin->makeKnownLinkObj( $loginTitle, wfMsgHtml( 'loginreqlink' ), 'returnto=' . $wgTitle->getPrefixedUrl() );
+		$this->addHtml( wfMsgWikiHtml( 'loginreqpagetext', $loginLink ) );
+		$this->addHtml( "\n<!--" . $wgTitle->getPrefixedUrl() . "-->" );
+		
+		$this->returnToMain();
+	}
+
+	/** @obsolete */
+	function databaseError( $fname, $sql, $error, $errno ) {
+		throw new MWException( "OutputPage::databaseError is obsolete\n" );
+	}
+
+	function readOnlyPage( $source = null, $protected = false ) {
+		global $wgUser, $wgReadOnlyFile, $wgReadOnly, $wgTitle;
+
+		$this->setRobotpolicy( 'noindex,nofollow' );
+		$this->setArticleRelated( false );
+
+		if( $protected ) {
+			$skin = $wgUser->getSkin();
+			$this->setPageTitle( wfMsg( 'viewsource' ) );
+			$this->setSubtitle( wfMsg( 'viewsourcefor', $skin->makeKnownLinkObj( $wgTitle ) ) );
+			
+			# Determine if protection is due to the page being a system message
+			# and show an appropriate explanation
+			if( $wgTitle->getNamespace() == NS_MEDIAWIKI && !$wgUser->isAllowed( 'editinterface' ) ) {
+				$this->addWikiText( wfMsg( 'protectedinterface' ) );
+			} else {
+				$this->addWikiText( wfMsg( 'protectedtext' ) );
+			}
+		} else {
+			$this->setPageTitle( wfMsg( 'readonly' ) );
+			if ( $wgReadOnly ) {
+				$reason = $wgReadOnly;
+			} else {
+				$reason = file_get_contents( $wgReadOnlyFile );
+			}
+			$this->addWikiText( wfMsg( 'readonlytext', $reason ) );
+		}
+
+		if( is_string( $source ) ) {
+			if( strcmp( $source, '' ) == 0 ) {
+				global $wgTitle;
+				if ( $wgTitle->getNamespace() == NS_MEDIAWIKI ) {
+					$source = wfMsgWeirdKey ( $wgTitle->getText() );
+				} else {
+					$source = wfMsg( $wgUser->isLoggedIn() ? 'noarticletext' : 'noarticletextanon' );
+				}
+			}
+			$rows = $wgUser->getIntOption( 'rows' );
+			$cols = $wgUser->getIntOption( 'cols' );
+			
+			$text = "\n<textarea name='wpTextbox1' id='wpTextbox1' cols='$cols' rows='$rows' readonly='readonly'>" .
+				htmlspecialchars( $source ) . "\n</textarea>";
+			$this->addHTML( $text );
+		}
+
+		$this->returnToMain( false );
+	}
+
+	/** @obsolete */
+	function fatalError( $message ) { 
+		throw new FatalError( $message ); 
+	}
+	
+	/** @obsolete */
+	function unexpectedValueError( $name, $val ) {
+		throw new FatalError( wfMsg( 'unexpected', $name, $val ) );
+	}
+
+	/** @obsolete */
+	function fileCopyError( $old, $new ) {
+		throw new FatalError( wfMsg( 'filecopyerror', $old, $new ) );
+	}
+
+	/** @obsolete */
+	function fileRenameError( $old, $new ) {
+		throw new FatalError( wfMsg( 'filerenameerror', $old, $new ) );
+	}
+
+	/** @obsolete */
+	function fileDeleteError( $name ) {
+		throw new FatalError( wfMsg( 'filedeleteerror', $name ) );
+	}
+
+	/** @obsolete */
+	function fileNotFoundError( $name ) {
+		throw new FatalError( wfMsg( 'filenotfound', $name ) );
+	}
+
+	function showFatalError( $message ) {
+		$this->setPageTitle( wfMsg( "internalerror" ) );
+		$this->setRobotpolicy( "noindex,nofollow" );
+		$this->setArticleRelated( false );
+		$this->enableClientCache( false );
+		$this->mRedirect = '';
+		$this->mBodytext = $message;
+	}
+
+	function showUnexpectedValueError( $name, $val ) {
+		$this->showFatalError( wfMsg( 'unexpected', $name, $val ) );
+	}
+
+	function showFileCopyError( $old, $new ) {
+		$this->showFatalError( wfMsg( 'filecopyerror', $old, $new ) );
+	}
+
+	function showFileRenameError( $old, $new ) {
+		$this->showFatalError( wfMsg( 'filerenameerror', $old, $new ) );
+	}
+
+	function showFileDeleteError( $name ) {
+		$this->showFatalError( wfMsg( 'filedeleteerror', $name ) );
+	}
+
+	function showFileNotFoundError( $name ) {
+		$this->showFatalError( wfMsg( 'filenotfound', $name ) );
+	}
+
+	/**
+	 * return from error messages or notes
+	 * @param $auto automatically redirect the user after 10 seconds
+	 * @param $returnto page title to return to. Default is Main Page.
+	 */
+	function returnToMain( $auto = true, $returnto = NULL ) {
+		global $wgUser, $wgOut, $wgRequest;
+		
+		if ( $returnto == NULL ) {
+			$returnto = $wgRequest->getText( 'returnto' );
+		}
+		
+		if ( '' === $returnto ) {
+			$returnto = wfMsgForContent( 'mainpage' );
+		}
+
+		if ( is_object( $returnto ) ) {
+			$titleObj = $returnto;
+		} else {
+			$titleObj = Title::newFromText( $returnto );
+		}
+		if ( !is_object( $titleObj ) ) {
+			$titleObj = Title::newMainPage();
+		}
+
+		$sk = $wgUser->getSkin();
+		$link = $sk->makeLinkObj( $titleObj, '' );
+
+		$r = wfMsg( 'returnto', $link );
+		if ( $auto ) {
+			$wgOut->addMeta( 'http:Refresh', '10;url=' . $titleObj->escapeFullURL() );
+		}
+		$wgOut->addHTML( "\n<p>$r</p>\n" );
+	}
+
+	/**
+	 * This function takes the title (first item of mGoodLinks), categories, existing and broken links for the page
+	 * and uses the first 10 of them for META keywords
+	 */
+	function addKeywords( &$parserOutput ) {
+		global $wgTitle;
+		$this->addKeyword( $wgTitle->getPrefixedText() );
+		$count = 1;
+		$links2d =& $parserOutput->getLinks();
+		if ( !is_array( $links2d ) ) {
+			return;
+		}
+		foreach ( $links2d as $ns => $dbkeys ) {
+			foreach( $dbkeys as $dbkey => $id ) {
+				$this->addKeyword( $dbkey );
+				if ( ++$count > 10 ) {
+					break 2;
+				}
+			}
+		}
+	}
+
+	/**
+ 	 * @access private
+	 * @return string
+	 */
+	function headElement() {
+		global $wgDocType, $wgDTD, $wgContLanguageCode, $wgOutputEncoding, $wgMimeType;
+		global $wgUser, $wgContLang, $wgUseTrackbacks, $wgTitle;
+
+		if( $wgMimeType == 'text/xml' || $wgMimeType == 'application/xhtml+xml' || $wgMimeType == 'application/xml' ) {
+			$ret = "<?xml version=\"1.0\" encoding=\"$wgOutputEncoding\" ?>\n";
+		} else {
+			$ret = '';
+		}
+
+		$ret .= "<!DOCTYPE html PUBLIC \"$wgDocType\"\n        \"$wgDTD\">\n";
+
+		if ( '' == $this->getHTMLTitle() ) {
+			$this->setHTMLTitle(  wfMsg( 'pagetitle', $this->getPageTitle() ));
+		}
+
+		$rtl = $wgContLang->isRTL() ? " dir='RTL'" : '';
+		$ret .= "<html xmlns=\"http://www.w3.org/1999/xhtml\" xml:lang=\"$wgContLanguageCode\" lang=\"$wgContLanguageCode\" $rtl>\n";
+		$ret .= "<head>\n<title>" . htmlspecialchars( $this->getHTMLTitle() ) . "</title>\n";
+		array_push( $this->mMetatags, array( "http:Content-type", "$wgMimeType; charset={$wgOutputEncoding}" ) );
+
+		$ret .= $this->getHeadLinks();
+		global $wgStylePath;
+		if( $this->isPrintable() ) {
+			$media = '';
+		} else {
+			$media = "media='print'";
+		}
+		$printsheet = htmlspecialchars( "$wgStylePath/common/wikiprintable.css" );
+		$ret .= "<link rel='stylesheet' type='text/css' $media href='$printsheet' />\n";
+
+		$sk = $wgUser->getSkin();
+		$ret .= $sk->getHeadScripts();
+		$ret .= $this->mScripts;
+		$ret .= $sk->getUserStyles();
+
+		if ($wgUseTrackbacks && $this->isArticleRelated())
+			$ret .= $wgTitle->trackbackRDF();
+
+		$ret .= "</head>\n";
+		return $ret;
+	}
+
+	function getHeadLinks() {
+		global $wgRequest;
+		$ret = '';
+		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';
+			}
+			$ret .= "<meta $a=\"{$tag[0]}\" content=\"{$tag[1]}\" />\n";
+		}
+
+		$p = $this->mRobotpolicy;
+		if( $p !== '' && $p != 'index,follow' ) {
+			// http://www.robotstxt.org/wc/meta-user.html
+			// Only show if it's different from the default robots policy
+			$ret .= "<meta name=\"robots\" content=\"$p\" />\n";
+		}
+
+		if ( count( $this->mKeywords ) > 0 ) {
+			$strip = array(
+				"/<.*?>/" => '',
+				"/_/" => ' '
+			);
+			$ret .= "<meta name=\"keywords\" content=\"" .
+			  htmlspecialchars(preg_replace(array_keys($strip), array_values($strip),implode( ",", $this->mKeywords ))) . "\" />\n";
+		}
+		foreach ( $this->mLinktags as $tag ) {
+			$ret .= '<link';
+			foreach( $tag as $attr => $val ) {
+				$ret .= " $attr=\"" . htmlspecialchars( $val ) . "\"";
+			}
+			$ret .= " />\n";
+		}
+		if( $this->isSyndicated() ) {
+			# FIXME: centralize the mime-type and name information in Feed.php
+			$link = $wgRequest->escapeAppendQuery( 'feed=rss' );
+			$ret .= "<link rel='alternate' type='application/rss+xml' title='RSS 2.0' href='$link' />\n";
+			$link = $wgRequest->escapeAppendQuery( 'feed=atom' );
+			$ret .= "<link rel='alternate' type='application/atom+xml' title='Atom 0.3' href='$link' />\n";
+		}
+
+		return $ret;
+	}
+
+	/**
+	 * Turn off regular page output and return an error reponse
+	 * for when rate limiting has triggered.
+	 * @todo i18n
+	 * @access public
+	 */
+	function rateLimited() {
+		global $wgOut;
+		$wgOut->disable();
+		wfHttpError( 500, 'Internal Server Error',
+			'Sorry, the server has encountered an internal error. ' .
+			'Please wait a moment and hit "refresh" to submit the request again.' );
+	}
+	
+	/**
+	 * Show an "add new section" link?
+	 *
+	 * @return bool True if the parser output instructs us to add one
+	 */
+	function showNewSectionLink() {
+		return $this->mNewSectionLink;
+	}
+
+}
+?>