includes/OutputPage.php

   1 <?php
   2 if ( ! defined( 'MEDIAWIKI' ) )
   3         die( 1 );
   4 /**
   5  */
   6
   7 /**
   8  * @todo document
   9  */
  10 class OutputPage {
  11         var $mMetatags, $mKeywords;
  12         var $mLinktags, $mPagetitle, $mBodytext, $mDebugtext;
  13         var $mHTMLtitle, $mRobotpolicy, $mIsarticle, $mPrintable;
  14         var $mSubtitle, $mRedirect, $mStatusCode;
  15         var $mLastModified, $mETag, $mCategoryLinks;
  16         var $mScripts, $mLinkColours, $mPageLinkTitle;
  17
  18         var $mSuppressQuickbar;
  19         var $mOnloadHandler;
  20         var $mDoNothing;
  21         var $mContainsOldMagic, $mContainsNewMagic;
  22         var $mIsArticleRelated;
  23         protected $mParserOptions; // lazy initialised, use parserOptions()
  24         var $mShowFeedLinks = false;
  25         var $mEnableClientCache = true;
  26         var $mArticleBodyOnly = false;
  27
  28         var $mNewSectionLink = false;
  29         var $mNoGallery = false;
  30
  31         /**
  32          * Constructor
  33          * Initialise private variables
  34          */
  35         function __construct() {
  36                 $this->mMetatags = $this->mKeywords = $this->mLinktags = array();
  37                 $this->mHTMLtitle = $this->mPagetitle = $this->mBodytext =
  38                 $this->mRedirect = $this->mLastModified =
  39                 $this->mSubtitle = $this->mDebugtext = $this->mRobotpolicy =
  40                 $this->mOnloadHandler = $this->mPageLinkTitle = '';
  41                 $this->mIsArticleRelated = $this->mIsarticle = $this->mPrintable = true;
  42                 $this->mSuppressQuickbar = $this->mPrintable = false;
  43                 $this->mLanguageLinks = array();
  44                 $this->mCategoryLinks = array();
  45                 $this->mDoNothing = false;
  46                 $this->mContainsOldMagic = $this->mContainsNewMagic = 0;
  47                 $this->mParserOptions = null;
  48                 $this->mSquidMaxage = 0;
  49                 $this->mScripts = '';
  50                 $this->mHeadItems = array();
  51                 $this->mETag = false;
  52                 $this->mRevisionId = null;
  53                 $this->mNewSectionLink = false;
  54         }
  55
  56         public function redirect( $url, $responsecode = '302' ) {
  57                 # Strip newlines as a paranoia check for header injection in PHP<5.1.2
  58                 $this->mRedirect = str_replace( "\n", '', $url );
  59                 $this->mRedirectCode = $responsecode;
  60         }
  61
  62         /**
  63          * Set the HTTP status code to send with the output.
  64          *
  65          * @param int $statusCode
  66          * @return nothing
  67          */
  68         function setStatusCode( $statusCode ) { $this->mStatusCode = $statusCode; }
  69
  70         # To add an http-equiv meta tag, precede the name with "http:"
  71         function addMeta( $name, $val ) { array_push( $this->mMetatags, array( $name, $val ) ); }
  72         function addKeyword( $text ) { array_push( $this->mKeywords, $text ); }
  73         function addScript( $script ) { $this->mScripts .= "\t\t".$script; }
  74
  75         /**
  76          * Add a self-contained script tag with the given contents
  77          * @param string $script JavaScript text, no <script> tags
  78          */
  79         function addInlineScript( $script ) {
  80                 global $wgJsMimeType;
  81                 $this->mScripts .= "<script type=\"$wgJsMimeType\">/*<![CDATA[*/\n$script\n/*]]>*/</script>";
  82         }
  83
  84         function getScript() {
  85                 return $this->mScripts . $this->getHeadItems();
  86         }
  87
  88         function getHeadItems() {
  89                 $s = '';
  90                 foreach ( $this->mHeadItems as $item ) {
  91                         $s .= $item;
  92                 }
  93                 return $s;
  94         }
  95
  96
  97         function setETag($tag) { $this->mETag = $tag; }
  98         function setArticleBodyOnly($only) { $this->mArticleBodyOnly = $only; }
  99         function getArticleBodyOnly($only) { return $this->mArticleBodyOnly; }
 100
 101         function addLink( $linkarr ) {
 102                 # $linkarr should be an associative array of attributes. We'll escape on output.
 103                 array_push( $this->mLinktags, $linkarr );
 104         }
 105
 106         function addMetadataLink( $linkarr ) {
 107                 # note: buggy CC software only reads first "meta" link
 108                 static $haveMeta = false;
 109                 $linkarr['rel'] = ($haveMeta) ? 'alternate meta' : 'meta';
 110                 $this->addLink( $linkarr );
 111                 $haveMeta = true;
 112         }
 113
 114         /**
 115          * checkLastModified tells the client to use the client-cached page if
 116          * possible. If sucessful, the OutputPage is disabled so that
 117          * any future call to OutputPage->output() have no effect.
 118          *
 119          * @return bool True iff cache-ok headers was sent.
 120          */
 121         function checkLastModified ( $timestamp ) {
 122                 global $wgCachePages, $wgCacheEpoch, $wgUser, $wgRequest;
 123                 $fname = 'OutputPage::checkLastModified';
 124
 125                 if ( !$timestamp || $timestamp == '19700101000000' ) {
 126                         wfDebug( "$fname: CACHE DISABLED, NO TIMESTAMP\n" );
 127                         return;
 128                 }
 129                 if( !$wgCachePages ) {
 130                         wfDebug( "$fname: CACHE DISABLED\n", false );
 131                         return;
 132                 }
 133                 if( $wgUser->getOption( 'nocache' ) ) {
 134                         wfDebug( "$fname: USER DISABLED CACHE\n", false );
 135                         return;
 136                 }
 137
 138                 $timestamp=wfTimestamp(TS_MW,$timestamp);
 139                 $lastmod = wfTimestamp( TS_RFC2822, max( $timestamp, $wgUser->mTouched, $wgCacheEpoch ) );
 140
 141                 if( !empty( $_SERVER['HTTP_IF_MODIFIED_SINCE'] ) ) {
 142                         # IE sends sizes after the date like this:
 143                         # Wed, 20 Aug 2003 06:51:19 GMT; length=5202
 144                         # this breaks strtotime().
 145                         $modsince = preg_replace( '/;.*$/', '', $_SERVER["HTTP_IF_MODIFIED_SINCE"] );
 146                         $modsinceTime = strtotime( $modsince );
 147                         $ismodsince = wfTimestamp( TS_MW, $modsinceTime ? $modsinceTime : 1 );
 148                         wfDebug( "$fname: -- client send If-Modified-Since: " . $modsince . "\n", false );
 149                         wfDebug( "$fname: --  we might send Last-Modified : $lastmod\n", false );
 150                         if( ($ismodsince >= $timestamp ) && $wgUser->validateCache( $ismodsince ) && $ismodsince >= $wgCacheEpoch ) {
 151                                 # Make sure you're in a place you can leave when you call us!
 152                                 $wgRequest->response()->header( "HTTP/1.0 304 Not Modified" );
 153                                 $this->mLastModified = $lastmod;
 154                                 $this->sendCacheControl();
 155                                 wfDebug( "$fname: CACHED client: $ismodsince ; user: $wgUser->mTouched ; page: $timestamp ; site $wgCacheEpoch\n", false );
 156                                 $this->disable();
 157
 158                                 // Don't output a compressed blob when using ob_gzhandler;
 159                                 // it's technically against HTTP spec and seems to confuse
 160                                 // Firefox when the response gets split over two packets.
 161                                 wfClearOutputBuffers();
 162
 163                                 return true;
 164                         } else {
 165                                 wfDebug( "$fname: READY  client: $ismodsince ; user: $wgUser->mTouched ; page: $timestamp ; site $wgCacheEpoch\n", false );
 166                                 $this->mLastModified = $lastmod;
 167                         }
 168                 } else {
 169                         wfDebug( "$fname: client did not send If-Modified-Since header\n", false );
 170                         $this->mLastModified = $lastmod;
 171                 }
 172         }
 173
 174         function getPageTitleActionText () {
 175                 global $action;
 176                 switch($action) {
 177                         case 'edit':
 178                         case 'delete':
 179                         case 'protect':
 180                         case 'unprotect':
 181                         case 'watch':
 182                         case 'unwatch':
 183                                 // Display title is already customized
 184                                 return '';
 185                         case 'history':
 186                                 return wfMsg('history_short');
 187                         case 'submit':
 188                                 // FIXME: bug 2735; not correct for special pages etc
 189                                 return wfMsg('preview');
 190                         case 'info':
 191                                 return wfMsg('info_short');
 192                         default:
 193                                 return '';
 194                 }
 195         }
 196
 197         public function setRobotpolicy( $str ) { $this->mRobotpolicy = $str; }
 198         public function setHTMLTitle( $name ) {$this->mHTMLtitle = $name; }
 199         public function setPageTitle( $name ) {
 200                 global $action, $wgContLang;
 201                 $name = $wgContLang->convert($name, true);
 202                 $this->mPagetitle = $name;
 203                 if(!empty($action)) {
 204                         $taction =  $this->getPageTitleActionText();
 205                         if( !empty( $taction ) ) {
 206                                 $name .= ' - '.$taction;
 207                         }
 208                 }
 209
 210                 $this->setHTMLTitle( wfMsg( 'pagetitle', $name ) );
 211         }
 212         public function getHTMLTitle() { return $this->mHTMLtitle; }
 213         public function getPageTitle() { return $this->mPagetitle; }
 214         public function setSubtitle( $str ) { $this->mSubtitle = /*$this->parse(*/$str/*)*/; } // @bug 2514
 215         public function getSubtitle() { return $this->mSubtitle; }
 216         public function isArticle() { return $this->mIsarticle; }
 217         public function setPrintable() { $this->mPrintable = true; }
 218         public function isPrintable() { return $this->mPrintable; }
 219         public function setSyndicated( $show = true ) { $this->mShowFeedLinks = $show; }
 220         public function isSyndicated() { return $this->mShowFeedLinks; }
 221         public function setOnloadHandler( $js ) { $this->mOnloadHandler = $js; }
 222         public function getOnloadHandler() { return $this->mOnloadHandler; }
 223         public function disable() { $this->mDoNothing = true; }
 224
 225         public function setArticleRelated( $v ) {
 226                 $this->mIsArticleRelated = $v;
 227                 if ( !$v ) {
 228                         $this->mIsarticle = false;
 229                 }
 230         }
 231         public function setArticleFlag( $v ) {
 232                 $this->mIsarticle = $v;
 233                 if ( $v ) {
 234                         $this->mIsArticleRelated = $v;
 235                 }
 236         }
 237
 238         public function isArticleRelated() { return $this->mIsArticleRelated; }
 239
 240         public function getLanguageLinks() { return $this->mLanguageLinks; }
 241         public function addLanguageLinks($newLinkArray) {
 242                 $this->mLanguageLinks += $newLinkArray;
 243         }
 244         public function setLanguageLinks($newLinkArray) {
 245                 $this->mLanguageLinks = $newLinkArray;
 246         }
 247
 248         public function getCategoryLinks() {
 249                 return $this->mCategoryLinks;
 250         }
 251
 252         /**
 253          * Add an array of categories, with names in the keys
 254          */
 255         public function addCategoryLinks($categories) {
 256                 global $wgUser, $wgContLang;
 257
 258                 if ( !is_array( $categories ) ) {
 259                         return;
 260                 }
 261                 # Add the links to the link cache in a batch
 262                 $arr = array( NS_CATEGORY => $categories );
 263                 $lb = new LinkBatch;
 264                 $lb->setArray( $arr );
 265                 $lb->execute();
 266
 267                 $sk = $wgUser->getSkin();
 268                 foreach ( $categories as $category => $unused ) {
 269                         $title = Title::makeTitleSafe( NS_CATEGORY, $category );
 270                         $text = $wgContLang->convertHtml( $title->getText() );
 271                         $this->mCategoryLinks[] = $sk->makeLinkObj( $title, $text );
 272                 }
 273         }
 274
 275         public function setCategoryLinks($categories) {
 276                 $this->mCategoryLinks = array();
 277                 $this->addCategoryLinks($categories);
 278         }
 279
 280         public function suppressQuickbar() { $this->mSuppressQuickbar = true; }
 281         public function isQuickbarSuppressed() { return $this->mSuppressQuickbar; }
 282
 283         public function addHTML( $text ) { $this->mBodytext .= $text; }
 284         public function clearHTML() { $this->mBodytext = ''; }
 285         public function getHTML() { return $this->mBodytext; }
 286         public function debug( $text ) { $this->mDebugtext .= $text; }
 287
 288         /* @deprecated */
 289         public function setParserOptions( $options ) {
 290                 return $this->parserOptions( $options );
 291         }
 292
 293         public function parserOptions( $options = null ) {
 294                 if ( !$this->mParserOptions ) {
 295                         $this->mParserOptions = new ParserOptions;
 296                 }
 297                 return wfSetVar( $this->mParserOptions, $options );
 298         }
 299
 300         /**
 301          * Set the revision ID which will be seen by the wiki text parser
 302          * for things such as embedded {{REVISIONID}} variable use.
 303          * @param mixed $revid an integer, or NULL
 304          * @return mixed previous value
 305          */
 306         public function setRevisionId( $revid ) {
 307                 $val = is_null( $revid ) ? null : intval( $revid );
 308                 return wfSetVar( $this->mRevisionId, $val );
 309         }
 310
 311         /**
 312          * Convert wikitext to HTML and add it to the buffer
 313          * Default assumes that the current page title will
 314          * be used.
 315          *
 316          * @param string $text
 317          * @param bool   $linestart
 318          */
 319         public function addWikiText( $text, $linestart = true ) {
 320                 global $wgTitle;
 321                 $this->addWikiTextTitle($text, $wgTitle, $linestart);
 322         }
 323
 324         public function addWikiTextWithTitle($text, &$title, $linestart = true) {
 325                 $this->addWikiTextTitle($text, $title, $linestart);
 326         }
 327
 328         function addWikiTextTitleTidy($text, &$title, $linestart = true) {
 329                 $this->addWikiTextTitle( $text, $title, $linestart, true );
 330         }
 331
 332         public function addWikiTextTitle($text, &$title, $linestart, $tidy = false) {
 333                 global $wgParser;
 334
 335                 $fname = 'OutputPage:addWikiTextTitle';
 336                 wfProfileIn($fname);
 337
 338                 wfIncrStats('pcache_not_possible');
 339
 340                 $popts = $this->parserOptions();
 341                 $popts->setTidy($tidy);
 342
 343                 $parserOutput = $wgParser->parse( $text, $title, $popts,
 344                         $linestart, true, $this->mRevisionId );
 345
 346                 $this->addParserOutput( $parserOutput );
 347
 348                 wfProfileOut($fname);
 349         }
 350
 351         /**
 352          * @todo document
 353          * @param ParserOutput object &$parserOutput
 354          */
 355         public function addParserOutputNoText( &$parserOutput ) {
 356                 $this->mLanguageLinks += $parserOutput->getLanguageLinks();
 357                 $this->addCategoryLinks( $parserOutput->getCategories() );
 358                 $this->mNewSectionLink = $parserOutput->getNewSection();
 359                 $this->addKeywords( $parserOutput );
 360                 if ( $parserOutput->getCacheTime() == -1 ) {
 361                         $this->enableClientCache( false );
 362                 }
 363                 if ( $parserOutput->mHTMLtitle != "" ) {
 364                         $this->mPagetitle = $parserOutput->mHTMLtitle ;
 365                 }
 366                 if ( $parserOutput->mSubtitle != '' ) {
 367                         $this->mSubtitle .= $parserOutput->mSubtitle ;
 368                 }
 369                 $this->mNoGallery = $parserOutput->getNoGallery();
 370                 $this->mHeadItems = array_merge( $this->mHeadItems, (array)$parserOutput->mHeadItems );
 371                 wfRunHooks( 'OutputPageParserOutput', array( &$this, $parserOutput ) );
 372         }
 373
 374         /**
 375          * @todo document
 376          * @param ParserOutput &$parserOutput
 377          */
 378         function addParserOutput( &$parserOutput ) {
 379                 $this->addParserOutputNoText( $parserOutput );
 380                 $text = $parserOutput->getText();
 381                 wfRunHooks( 'OutputPageBeforeHTML',array( &$this, &$text ) );
 382                 $this->addHTML( $text );
 383         }
 384
 385         /**
 386          * Add wikitext to the buffer, assuming that this is the primary text for a page view
 387          * Saves the text into the parser cache if possible.
 388          *
 389          * @param string  $text
 390          * @param Article $article
 391          * @param bool    $cache
 392          * @deprecated Use Article::outputWikitext
 393          */
 394         public function addPrimaryWikiText( $text, $article, $cache = true ) {
 395                 global $wgParser, $wgUser;
 396
 397                 $popts = $this->parserOptions();
 398                 $popts->setTidy(true);
 399                 $parserOutput = $wgParser->parse( $text, $article->mTitle,
 400                         $popts, true, true, $this->mRevisionId );
 401                 $popts->setTidy(false);
 402                 if ( $cache && $article && $parserOutput->getCacheTime() != -1 ) {
 403                         $parserCache =& ParserCache::singleton();
 404                         $parserCache->save( $parserOutput, $article, $wgUser );
 405                 }
 406
 407                 $this->addParserOutput( $parserOutput );
 408         }
 409
 410         /**
 411          * @deprecated use addWikiTextTidy()
 412          */
 413         public function addSecondaryWikiText( $text, $linestart = true ) {
 414                 global $wgTitle;
 415                 $this->addWikiTextTitleTidy($text, $wgTitle, $linestart);
 416         }
 417
 418         /**
 419          * Add wikitext with tidy enabled
 420          */
 421         public function addWikiTextTidy(  $text, $linestart = true ) {
 422                 global $wgTitle;
 423                 $this->addWikiTextTitleTidy($text, $wgTitle, $linestart);
 424         }
 425
 426
 427         /**
 428          * Add the output of a QuickTemplate to the output buffer
 429          *
 430          * @param QuickTemplate $template
 431          */
 432         public function addTemplate( &$template ) {
 433                 ob_start();
 434                 $template->execute();
 435                 $this->addHTML( ob_get_contents() );
 436                 ob_end_clean();
 437         }
 438
 439         /**
 440          * Parse wikitext and return the HTML.
 441          *
 442          * @param string $text
 443          * @param bool   $linestart Is this the start of a line?
 444          * @param bool   $interface ??
 445          */
 446         public function parse( $text, $linestart = true, $interface = false ) {
 447                 global $wgParser, $wgTitle;
 448                 $popts = $this->parserOptions();
 449                 if ( $interface) { $popts->setInterfaceMessage(true); }
 450                 $parserOutput = $wgParser->parse( $text, $wgTitle, $popts,
 451                         $linestart, true, $this->mRevisionId );
 452                 if ( $interface) { $popts->setInterfaceMessage(false); }
 453                 return $parserOutput->getText();
 454         }
 455
 456         /**
 457          * @param Article $article
 458          * @param User    $user
 459          *
 460          * @return bool True if successful, else false.
 461          */
 462         public function tryParserCache( &$article, $user ) {
 463                 $parserCache =& ParserCache::singleton();
 464                 $parserOutput = $parserCache->get( $article, $user );
 465                 if ( $parserOutput !== false ) {
 466                         $this->addParserOutput( $parserOutput );
 467                         return true;
 468                 } else {
 469                         return false;
 470                 }
 471         }
 472
 473         /**
 474          * @param int $maxage Maximum cache time on the Squid, in seconds.
 475          */
 476         public function setSquidMaxage( $maxage ) {
 477                 $this->mSquidMaxage = $maxage;
 478         }
 479
 480         /**
 481          * Use enableClientCache(false) to force it to send nocache headers
 482          * @param $state ??
 483          */
 484         public function enableClientCache( $state ) {
 485                 return wfSetVar( $this->mEnableClientCache, $state );
 486         }
 487
 488         function uncacheableBecauseRequestvars() {
 489                 global $wgRequest;
 490                 return  $wgRequest->getText('useskin', false) === false
 491                         && $wgRequest->getText('uselang', false) === false;
 492         }
 493
 494         public function sendCacheControl() {
 495                 global $wgUseSquid, $wgUseESI, $wgUseETag, $wgSquidMaxage, $wgRequest;
 496                 $fname = 'OutputPage::sendCacheControl';
 497
 498                 if ($wgUseETag && $this->mETag)
 499                         $wgRequest->response()->header("ETag: $this->mETag");
 500
 501                 # don't serve compressed data to clients who can't handle it
 502                 # maintain different caches for logged-in users and non-logged in ones
 503                 $wgRequest->response()->header( 'Vary: Accept-Encoding, Cookie' );
 504                 if( !$this->uncacheableBecauseRequestvars() && $this->mEnableClientCache ) {
 505                         if( $wgUseSquid && session_id() == '' &&
 506                           ! $this->isPrintable() && $this->mSquidMaxage != 0 )
 507                         {
 508                                 if ( $wgUseESI ) {
 509                                         # We'll purge the proxy cache explicitly, but require end user agents
 510                                         # to revalidate against the proxy on each visit.
 511                                         # Surrogate-Control controls our Squid, Cache-Control downstream caches
 512                                         wfDebug( "$fname: proxy caching with ESI; {$this->mLastModified} **\n", false );
 513                                         # start with a shorter timeout for initial testing
 514                                         # header( 'Surrogate-Control: max-age=2678400+2678400, content="ESI/1.0"');
 515                                         $wgRequest->response()->header( 'Surrogate-Control: max-age='.$wgSquidMaxage.'+'.$this->mSquidMaxage.', content="ESI/1.0"');
 516                                         $wgRequest->response()->header( 'Cache-Control: s-maxage=0, must-revalidate, max-age=0' );
 517                                 } else {
 518                                         # We'll purge the proxy cache for anons explicitly, but require end user agents
 519                                         # to revalidate against the proxy on each visit.
 520                                         # IMPORTANT! The Squid needs to replace the Cache-Control header with
 521                                         # Cache-Control: s-maxage=0, must-revalidate, max-age=0
 522                                         wfDebug( "$fname: local proxy caching; {$this->mLastModified} **\n", false );
 523                                         # start with a shorter timeout for initial testing
 524                                         # header( "Cache-Control: s-maxage=2678400, must-revalidate, max-age=0" );
 525                                         $wgRequest->response()->header( 'Cache-Control: s-maxage='.$this->mSquidMaxage.', must-revalidate, max-age=0' );
 526                                 }
 527                         } else {
 528                                 # We do want clients to cache if they can, but they *must* check for updates
 529                                 # on revisiting the page.
 530                                 wfDebug( "$fname: private caching; {$this->mLastModified} **\n", false );
 531                                 $wgRequest->response()->header( 'Expires: ' . gmdate( 'D, d M Y H:i:s', 0 ) . ' GMT' );
 532                                 $wgRequest->response()->header( "Cache-Control: private, must-revalidate, max-age=0" );
 533                         }
 534                         if($this->mLastModified) $wgRequest->response()->header( "Last-modified: {$this->mLastModified}" );
 535                 } else {
 536                         wfDebug( "$fname: no caching **\n", false );
 537
 538                         # In general, the absence of a last modified header should be enough to prevent
 539                         # the client from using its cache. We send a few other things just to make sure.
 540                         $wgRequest->response()->header( 'Expires: ' . gmdate( 'D, d M Y H:i:s', 0 ) . ' GMT' );
 541                         $wgRequest->response()->header( 'Cache-Control: no-cache, no-store, max-age=0, must-revalidate' );
 542                         $wgRequest->response()->header( 'Pragma: no-cache' );
 543                 }
 544         }
 545
 546         /**
 547          * Finally, all the text has been munged and accumulated into
 548          * the object, let's actually output it:
 549          */
 550         public function output() {
 551                 global $wgUser, $wgOutputEncoding, $wgRequest;
 552                 global $wgContLanguageCode, $wgDebugRedirects, $wgMimeType;
 553                 global $wgJsMimeType, $wgStylePath, $wgUseAjax, $wgAjaxSearch, $wgAjaxWatch;
 554                 global $wgServer, $wgStyleVersion;
 555
 556                 if( $this->mDoNothing ){
 557                         return;
 558                 }
 559                 $fname = 'OutputPage::output';
 560                 wfProfileIn( $fname );
 561                 $sk = $wgUser->getSkin();
 562
 563                 if ( $wgUseAjax ) {
 564                         $this->addScript( "<script type=\"{$wgJsMimeType}\" src=\"{$wgStylePath}/common/ajax.js?$wgStyleVersion\"></script>\n" );
 565
 566                         wfRunHooks( 'AjaxAddScript', array( &$this ) );
 567
 568                         if( $wgAjaxSearch ) {
 569                                 $this->addScript( "<script type=\"{$wgJsMimeType}\" src=\"{$wgStylePath}/common/ajaxsearch.js?$wgStyleVersion\"></script>\n" );
 570                                 $this->addScript( "<script type=\"{$wgJsMimeType}\">hookEvent(\"load\", sajax_onload);</script>\n" );
 571                         }
 572
 573                         if( $wgAjaxWatch && $wgUser->isLoggedIn() ) {
 574                                 $this->addScript( "<script type=\"{$wgJsMimeType}\" src=\"{$wgStylePath}/common/ajaxwatch.js?$wgStyleVersion\"></script>\n" );
 575                         }
 576                 }
 577
 578                 if ( '' != $this->mRedirect ) {
 579                         if( substr( $this->mRedirect, 0, 4 ) != 'http' ) {
 580                                 # Standards require redirect URLs to be absolute
 581                                 global $wgServer;
 582                                 $this->mRedirect = $wgServer . $this->mRedirect;
 583                         }
 584                         if( $this->mRedirectCode == '301') {
 585                                 if( !$wgDebugRedirects ) {
 586                                         $wgRequest->response()->header("HTTP/1.1 {$this->mRedirectCode} Moved Permanently");
 587                                 }
 588                                 $this->mLastModified = wfTimestamp( TS_RFC2822 );
 589                         }
 590
 591                         $this->sendCacheControl();
 592
 593                         $wgRequest->response()->header("Content-Type: text/html; charset=utf-8");
 594                         if( $wgDebugRedirects ) {
 595                                 $url = htmlspecialchars( $this->mRedirect );
 596                                 print "<html>\n<head>\n<title>Redirect</title>\n</head>\n<body>\n";
 597                                 print "<p>Location: <a href=\"$url\">$url</a></p>\n";
 598                                 print "</body>\n</html>\n";
 599                         } else {
 600                                 $wgRequest->response()->header( 'Location: '.$this->mRedirect );
 601                         }
 602                         wfProfileOut( $fname );
 603                         return;
 604                 }
 605                 elseif ( $this->mStatusCode )
 606                 {
 607                         $statusMessage = array(
 608                                 100 => 'Continue',
 609                                 101 => 'Switching Protocols',
 610                                 102 => 'Processing',
 611                                 200 => 'OK',
 612                                 201 => 'Created',
 613                                 202 => 'Accepted',
 614                                 203 => 'Non-Authoritative Information',
 615                                 204 => 'No Content',
 616                                 205 => 'Reset Content',
 617                                 206 => 'Partial Content',
 618                                 207 => 'Multi-Status',
 619                                 300 => 'Multiple Choices',
 620                                 301 => 'Moved Permanently',
 621                                 302 => 'Found',
 622                                 303 => 'See Other',
 623                                 304 => 'Not Modified',
 624                                 305 => 'Use Proxy',
 625                                 307 => 'Temporary Redirect',
 626                                 400 => 'Bad Request',
 627                                 401 => 'Unauthorized',
 628                                 402 => 'Payment Required',
 629                                 403 => 'Forbidden',
 630                                 404 => 'Not Found',
 631                                 405 => 'Method Not Allowed',
 632                                 406 => 'Not Acceptable',
 633                                 407 => 'Proxy Authentication Required',
 634                                 408 => 'Request Timeout',
 635                                 409 => 'Conflict',
 636                                 410 => 'Gone',
 637                                 411 => 'Length Required',
 638                                 412 => 'Precondition Failed',
 639                                 413 => 'Request Entity Too Large',
 640                                 414 => 'Request-URI Too Large',
 641                                 415 => 'Unsupported Media Type',
 642                                 416 => 'Request Range Not Satisfiable',
 643                                 417 => 'Expectation Failed',
 644                                 422 => 'Unprocessable Entity',
 645                                 423 => 'Locked',
 646                                 424 => 'Failed Dependency',
 647                                 500 => 'Internal Server Error',
 648                                 501 => 'Not Implemented',
 649                                 502 => 'Bad Gateway',
 650                                 503 => 'Service Unavailable',
 651                                 504 => 'Gateway Timeout',
 652                                 505 => 'HTTP Version Not Supported',
 653                                 507 => 'Insufficient Storage'
 654                         );
 655
 656                         if ( $statusMessage[$this->mStatusCode] )
 657                                 $wgRequest->response()->header( 'HTTP/1.1 ' . $this->mStatusCode . ' ' . $statusMessage[$this->mStatusCode] );
 658                 }
 659
 660                 # Buffer output; final headers may depend on later processing
 661                 ob_start();
 662
 663                 # Disable temporary placeholders, so that the skin produces HTML
 664                 $sk->postParseLinkColour( false );
 665
 666                 $wgRequest->response()->header( "Content-type: $wgMimeType; charset={$wgOutputEncoding}" );
 667                 $wgRequest->response()->header( 'Content-language: '.$wgContLanguageCode );
 668
 669                 if ($this->mArticleBodyOnly) {
 670                         $this->out($this->mBodytext);
 671                 } else {
 672                         wfProfileIn( 'Output-skin' );
 673                         $sk->outputPage( $this );
 674                         wfProfileOut( 'Output-skin' );
 675                 }
 676
 677                 $this->sendCacheControl();
 678                 ob_end_flush();
 679                 wfProfileOut( $fname );
 680         }
 681
 682         /**
 683          * @todo document
 684          * @param string $ins
 685          */
 686         public function out( $ins ) {
 687                 global $wgInputEncoding, $wgOutputEncoding, $wgContLang;
 688                 if ( 0 == strcmp( $wgInputEncoding, $wgOutputEncoding ) ) {
 689                         $outs = $ins;
 690                 } else {
 691                         $outs = $wgContLang->iconv( $wgInputEncoding, $wgOutputEncoding, $ins );
 692                         if ( false === $outs ) { $outs = $ins; }
 693                 }
 694                 print $outs;
 695         }
 696
 697         /**
 698          * @todo document
 699          */
 700         public static function setEncodings() {
 701                 global $wgInputEncoding, $wgOutputEncoding;
 702                 global $wgUser, $wgContLang;
 703
 704                 $wgInputEncoding = strtolower( $wgInputEncoding );
 705
 706                 if ( empty( $_SERVER['HTTP_ACCEPT_CHARSET'] ) ) {
 707                         $wgOutputEncoding = strtolower( $wgOutputEncoding );
 708                         return;
 709                 }
 710                 $wgOutputEncoding = $wgInputEncoding;
 711         }
 712
 713         /**
 714          * Deprecated, use wfReportTime() instead.
 715          * @return string
 716          * @deprecated
 717          */
 718         public function reportTime() {
 719                 $time = wfReportTime();
 720                 return $time;
 721         }
 722
 723         /**
 724          * Produce a "user is blocked" page.
 725          *
 726          * @param bool $return Whether to have a "return to $wgTitle" message or not.
 727          * @return nothing
 728          */
 729         function blockedPage( $return = true ) {
 730                 global $wgUser, $wgContLang, $wgTitle;
 731
 732                 $this->setPageTitle( wfMsg( 'blockedtitle' ) );
 733                 $this->setRobotpolicy( 'noindex,nofollow' );
 734                 $this->setArticleRelated( false );
 735
 736                 $id = $wgUser->blockedBy();
 737                 $reason = $wgUser->blockedFor();
 738                 $ip = wfGetIP();
 739
 740                 if ( is_numeric( $id ) ) {
 741                         $name = User::whoIs( $id );
 742                 } else {
 743                         $name = $id;
 744                 }
 745                 $link = '[[' . $wgContLang->getNsText( NS_USER ) . ":{$name}|{$name}]]";
 746
 747                 $blockid = $wgUser->mBlock->mId;
 748
 749                 $this->addWikiText( wfMsg( 'blockedtext', $link, $reason, $ip, $name, $blockid ) );
 750
 751                 # Don't auto-return to special pages
 752                 if( $return ) {
 753                         $return = $wgTitle->getNamespace() > -1 ? $wgTitle->getPrefixedText() : NULL;
 754                         $this->returnToMain( false, $return );
 755                 }
 756         }
 757
 758         /**
 759          * Outputs a pretty page to explain why the request exploded.
 760          *
 761          * @param string $title Message key for page title.
 762          * @param string $msg   Message key for page text.
 763          * @return nothing
 764          */
 765         public function showErrorPage( $title, $msg ) {
 766                 global $wgTitle;
 767
 768                 $this->mDebugtext .= 'Original title: ' .
 769                   $wgTitle->getPrefixedText() . "\n";
 770                 $this->setPageTitle( wfMsg( $title ) );
 771                 $this->setHTMLTitle( wfMsg( 'errorpagetitle' ) );
 772                 $this->setRobotpolicy( 'noindex,nofollow' );
 773                 $this->setArticleRelated( false );
 774                 $this->enableClientCache( false );
 775                 $this->mRedirect = '';
 776
 777                 $this->mBodytext = '';
 778                 $this->addWikiText( wfMsg( $msg ) );
 779                 $this->returnToMain( false );
 780         }
 781
 782         /** @deprecated */
 783         public function errorpage( $title, $msg ) {
 784                 throw new ErrorPageError( $title, $msg );
 785         }
 786
 787         /**
 788          * Display an error page indicating that a given version of MediaWiki is
 789          * required to use it
 790          *
 791          * @param mixed $version The version of MediaWiki needed to use the page
 792          */
 793         public function versionRequired( $version ) {
 794                 $this->setPageTitle( wfMsg( 'versionrequired', $version ) );
 795                 $this->setHTMLTitle( wfMsg( 'versionrequired', $version ) );
 796                 $this->setRobotpolicy( 'noindex,nofollow' );
 797                 $this->setArticleRelated( false );
 798                 $this->mBodytext = '';
 799
 800                 $this->addWikiText( wfMsg( 'versionrequiredtext', $version ) );
 801                 $this->returnToMain();
 802         }
 803
 804         /**
 805          * Display an error page noting that a given permission bit is required.
 806          *
 807          * @param string $permission key required
 808          */
 809         public function permissionRequired( $permission ) {
 810                 global $wgGroupPermissions, $wgUser;
 811
 812                 $this->setPageTitle( wfMsg( 'badaccess' ) );
 813                 $this->setHTMLTitle( wfMsg( 'errorpagetitle' ) );
 814                 $this->setRobotpolicy( 'noindex,nofollow' );
 815                 $this->setArticleRelated( false );
 816                 $this->mBodytext = '';
 817
 818                 $groups = array();
 819                 foreach( $wgGroupPermissions as $key => $value ) {
 820                         if( isset( $value[$permission] ) && $value[$permission] == true ) {
 821                                 $groupName = User::getGroupName( $key );
 822                                 $groupPage = User::getGroupPage( $key );
 823                                 if( $groupPage ) {
 824                                         $skin = $wgUser->getSkin();
 825                                         $groups[] = $skin->makeLinkObj( $groupPage, $groupName );
 826                                 } else {
 827                                         $groups[] = $groupName;
 828                                 }
 829                         }
 830                 }
 831                 $n = count( $groups );
 832                 $groups = implode( ', ', $groups );
 833                 switch( $n ) {
 834                         case 0:
 835                         case 1:
 836                         case 2:
 837                                 $message = wfMsgHtml( "badaccess-group$n", $groups );
 838                                 break;
 839                         default:
 840                                 $message = wfMsgHtml( 'badaccess-groups', $groups );
 841                 }
 842                 $this->addHtml( $message );
 843                 $this->returnToMain( false );
 844         }
 845
 846         /**
 847          * Use permissionRequired.
 848          * @deprecated
 849          */
 850         public function sysopRequired() {
 851                 throw new MWException( "Call to deprecated OutputPage::sysopRequired() method\n" );
 852         }
 853
 854         /**
 855          * Use permissionRequired.
 856          * @deprecated
 857          */
 858         public function developerRequired() {
 859                 throw new MWException( "Call to deprecated OutputPage::developerRequired() method\n" );
 860         }
 861
 862         /**
 863          * Produce the stock "please login to use the wiki" page
 864          */
 865         public function loginToUse() {
 866                 global $wgUser, $wgTitle, $wgContLang;
 867
 868                 if( $wgUser->isLoggedIn() ) {
 869                         $this->permissionRequired( 'read' );
 870                         return;
 871                 }
 872
 873                 $skin = $wgUser->getSkin();
 874
 875                 $this->setPageTitle( wfMsg( 'loginreqtitle' ) );
 876                 $this->setHtmlTitle( wfMsg( 'errorpagetitle' ) );
 877                 $this->setRobotPolicy( 'noindex,nofollow' );
 878                 $this->setArticleFlag( false );
 879
 880                 $loginTitle = SpecialPage::getTitleFor( 'Userlogin' );
 881                 $loginLink = $skin->makeKnownLinkObj( $loginTitle, wfMsgHtml( 'loginreqlink' ), 'returnto=' . $wgTitle->getPrefixedUrl() );
 882                 $this->addHtml( wfMsgWikiHtml( 'loginreqpagetext', $loginLink ) );
 883                 $this->addHtml( "\n<!--" . $wgTitle->getPrefixedUrl() . "-->" );
 884
 885                 # Don't return to the main page if the user can't read it
 886                 # otherwise we'll end up in a pointless loop
 887                 $mainPage = Title::newMainPage();
 888                 if( $mainPage->userCanRead() )
 889                         $this->returnToMain( true, $mainPage );
 890         }
 891
 892         /** @deprecated */
 893         public function databaseError( $fname, $sql, $error, $errno ) {
 894                 throw new MWException( "OutputPage::databaseError is obsolete\n" );
 895         }
 896
 897         /**
 898          * @todo document
 899          * @param bool  $protected Is the reason the page can't be reached because it's protected?
 900          * @param mixed $source
 901          */
 902         public function readOnlyPage( $source = null, $protected = false ) {
 903                 global $wgUser, $wgReadOnlyFile, $wgReadOnly, $wgTitle;
 904                 $skin = $wgUser->getSkin();
 905
 906                 $this->setRobotpolicy( 'noindex,nofollow' );
 907                 $this->setArticleRelated( false );
 908
 909                 if( $protected ) {
 910                         $this->setPageTitle( wfMsg( 'viewsource' ) );
 911                         $this->setSubtitle( wfMsg( 'viewsourcefor', $skin->makeKnownLinkObj( $wgTitle ) ) );
 912
 913                         list( $cascadeSources, $restrictions ) = $wgTitle->getCascadeProtectionSources();
 914
 915                         # Determine if protection is due to the page being a system message
 916                         # and show an appropriate explanation
 917                         if( $wgTitle->getNamespace() == NS_MEDIAWIKI ) {
 918                                 $this->addWikiText( wfMsg( 'protectedinterface' ) );
 919                         } if ( $cascadeSources && count($cascadeSources) > 0 ) {
 920                                 $titles = '';
 921
 922                                 foreach ( $cascadeSources as $title ) {
 923                                         $titles .= '* [[:' . $title->getPrefixedText() . "]]\n";
 924                                 }
 925
 926                                 $notice = wfMsg( 'cascadeprotected' ) . "\n$titles";
 927
 928                                 $this->addWikiText( $notice );
 929                         } else {
 930                                 $this->addWikiText( wfMsg( 'protectedpagetext' ) );
 931                         }
 932                 } else {
 933                         $this->setPageTitle( wfMsg( 'readonly' ) );
 934                         if ( $wgReadOnly ) {
 935                                 $reason = $wgReadOnly;
 936                         } else {
 937                                 $reason = file_get_contents( $wgReadOnlyFile );
 938                         }
 939                         $this->addWikiText( wfMsg( 'readonlytext', $reason ) );
 940                 }
 941
 942                 if( is_string( $source ) ) {
 943                         $this->addWikiText( wfMsg( 'viewsourcetext' ) );
 944                         $rows = $wgUser->getIntOption( 'rows' );
 945                         $cols = $wgUser->getIntOption( 'cols' );
 946                         $text = "\n<textarea name='wpTextbox1' id='wpTextbox1' cols='$cols' rows='$rows' readonly='readonly'>" .
 947                                 htmlspecialchars( $source ) . "\n</textarea>";
 948                         $this->addHTML( $text );
 949                 }
 950                 $article = new Article($wgTitle);
 951                 $this->addHTML( $skin->formatTemplates($article->getUsedTemplates()) );
 952
 953                 $this->returnToMain( false );
 954         }
 955
 956         /** @deprecated */
 957         public function fatalError( $message ) {
 958                 throw new FatalError( $message );
 959         }
 960
 961         /** @deprecated */
 962         public function unexpectedValueError( $name, $val ) {
 963                 throw new FatalError( wfMsg( 'unexpected', $name, $val ) );
 964         }
 965
 966         /** @deprecated */
 967         public function fileCopyError( $old, $new ) {
 968                 throw new FatalError( wfMsg( 'filecopyerror', $old, $new ) );
 969         }
 970
 971         /** @deprecated */
 972         public function fileRenameError( $old, $new ) {
 973                 throw new FatalError( wfMsg( 'filerenameerror', $old, $new ) );
 974         }
 975
 976         /** @deprecated */
 977         public function fileDeleteError( $name ) {
 978                 throw new FatalError( wfMsg( 'filedeleteerror', $name ) );
 979         }
 980
 981         /** @deprecated */
 982         public function fileNotFoundError( $name ) {
 983                 throw new FatalError( wfMsg( 'filenotfound', $name ) );
 984         }
 985
 986         public function showFatalError( $message ) {
 987                 $this->setPageTitle( wfMsg( "internalerror" ) );
 988                 $this->setRobotpolicy( "noindex,nofollow" );
 989                 $this->setArticleRelated( false );
 990                 $this->enableClientCache( false );
 991                 $this->mRedirect = '';
 992                 $this->mBodytext = $message;
 993         }
 994
 995         public function showUnexpectedValueError( $name, $val ) {
 996                 $this->showFatalError( wfMsg( 'unexpected', $name, $val ) );
 997         }
 998
 999         public function showFileCopyError( $old, $new ) {
1000                 $this->showFatalError( wfMsg( 'filecopyerror', $old, $new ) );
1001         }
1002
1003         public function showFileRenameError( $old, $new ) {
1004                 $this->showFatalError( wfMsg( 'filerenameerror', $old, $new ) );
1005         }
1006
1007         public function showFileDeleteError( $name ) {
1008                 $this->showFatalError( wfMsg( 'filedeleteerror', $name ) );
1009         }
1010
1011         public function showFileNotFoundError( $name ) {
1012                 $this->showFatalError( wfMsg( 'filenotfound', $name ) );
1013         }
1014
1015         /**
1016          * return from error messages or notes
1017          * @param $auto automatically redirect the user after 10 seconds
1018          * @param $returnto page title to return to. Default is Main Page.
1019          */
1020         public function returnToMain( $auto = true, $returnto = NULL ) {
1021                 global $wgUser, $wgOut, $wgRequest;
1022
1023                 if ( $returnto == NULL ) {
1024                         $returnto = $wgRequest->getText( 'returnto' );
1025                 }
1026
1027                 if ( '' === $returnto ) {
1028                         $returnto = Title::newMainPage();
1029                 }
1030
1031                 if ( is_object( $returnto ) ) {
1032                         $titleObj = $returnto;
1033                 } else {
1034                         $titleObj = Title::newFromText( $returnto );
1035                 }
1036                 if ( !is_object( $titleObj ) ) {
1037                         $titleObj = Title::newMainPage();
1038                 }
1039
1040                 $sk = $wgUser->getSkin();
1041                 $link = $sk->makeLinkObj( $titleObj, '' );
1042
1043                 $r = wfMsg( 'returnto', $link );
1044                 if ( $auto ) {
1045                         $wgOut->addMeta( 'http:Refresh', '10;url=' . $titleObj->escapeFullURL() );
1046                 }
1047                 $wgOut->addHTML( "\n<p>$r</p>\n" );
1048         }
1049
1050         /**
1051          * This function takes the title (first item of mGoodLinks), categories, existing and broken links for the page
1052          * and uses the first 10 of them for META keywords
1053          *
1054          * @param ParserOutput &$parserOutput
1055          */
1056         private function addKeywords( &$parserOutput ) {
1057                 global $wgTitle;
1058                 $this->addKeyword( $wgTitle->getPrefixedText() );
1059                 $count = 1;
1060                 $links2d =& $parserOutput->getLinks();
1061                 if ( !is_array( $links2d ) ) {
1062                         return;
1063                 }
1064                 foreach ( $links2d as $dbkeys ) {
1065                         foreach( $dbkeys as $dbkey => $unused ) {
1066                                 $this->addKeyword( $dbkey );
1067                                 if ( ++$count > 10 ) {
1068                                         break 2;
1069                                 }
1070                         }
1071                 }
1072         }
1073
1074         /**
1075          * @return string The doctype, opening <html>, and head element.
1076          */
1077         public function headElement() {
1078                 global $wgDocType, $wgDTD, $wgContLanguageCode, $wgOutputEncoding, $wgMimeType;
1079                 global $wgXhtmlDefaultNamespace, $wgXhtmlNamespaces;
1080                 global $wgUser, $wgContLang, $wgUseTrackbacks, $wgTitle, $wgStyleVersion;
1081
1082                 if( $wgMimeType == 'text/xml' || $wgMimeType == 'application/xhtml+xml' || $wgMimeType == 'application/xml' ) {
1083                         $ret = "<?xml version=\"1.0\" encoding=\"$wgOutputEncoding\" ?>\n";
1084                 } else {
1085                         $ret = '';
1086                 }
1087
1088                 $ret .= "<!DOCTYPE html PUBLIC \"$wgDocType\"\n        \"$wgDTD\">\n";
1089
1090                 if ( '' == $this->getHTMLTitle() ) {
1091                         $this->setHTMLTitle(  wfMsg( 'pagetitle', $this->getPageTitle() ));
1092                 }
1093
1094                 $rtl = $wgContLang->isRTL() ? " dir='RTL'" : '';
1095                 $ret .= "<html xmlns=\"{$wgXhtmlDefaultNamespace}\" ";
1096                 foreach($wgXhtmlNamespaces as $tag => $ns) {
1097                         $ret .= "xmlns:{$tag}=\"{$ns}\" ";
1098                 }
1099                 $ret .= "xml:lang=\"$wgContLanguageCode\" lang=\"$wgContLanguageCode\" $rtl>\n";
1100                 $ret .= "<head>\n<title>" . htmlspecialchars( $this->getHTMLTitle() ) . "</title>\n";
1101                 array_push( $this->mMetatags, array( "http:Content-type", "$wgMimeType; charset={$wgOutputEncoding}" ) );
1102
1103                 $ret .= $this->getHeadLinks();
1104                 global $wgStylePath;
1105                 if( $this->isPrintable() ) {
1106                         $media = '';
1107                 } else {
1108                         $media = "media='print'";
1109                 }
1110                 $printsheet = htmlspecialchars( "$wgStylePath/common/wikiprintable.css?$wgStyleVersion" );
1111                 $ret .= "<link rel='stylesheet' type='text/css' $media href='$printsheet' />\n";
1112
1113                 $sk = $wgUser->getSkin();
1114                 $ret .= $sk->getHeadScripts();
1115                 $ret .= $this->mScripts;
1116                 $ret .= $sk->getUserStyles();
1117                 $ret .= $this->getHeadItems();
1118
1119                 if ($wgUseTrackbacks && $this->isArticleRelated())
1120                         $ret .= $wgTitle->trackbackRDF();
1121
1122                 $ret .= "</head>\n";
1123                 return $ret;
1124         }
1125
1126         /**
1127          * @return string HTML tag links to be put in the header.
1128          */
1129         public function getHeadLinks() {
1130                 global $wgRequest;
1131                 $ret = '';
1132                 foreach ( $this->mMetatags as $tag ) {
1133                         if ( 0 == strcasecmp( 'http:', substr( $tag[0], 0, 5 ) ) ) {
1134                                 $a = 'http-equiv';
1135                                 $tag[0] = substr( $tag[0], 5 );
1136                         } else {
1137                                 $a = 'name';
1138                         }
1139                         $ret .= "<meta $a=\"{$tag[0]}\" content=\"{$tag[1]}\" />\n";
1140                 }
1141
1142                 $p = $this->mRobotpolicy;
1143                 if( $p !== '' && $p != 'index,follow' ) {
1144                         // http://www.robotstxt.org/wc/meta-user.html
1145                         // Only show if it's different from the default robots policy
1146                         $ret .= "<meta name=\"robots\" content=\"$p\" />\n";
1147                 }
1148
1149                 if ( count( $this->mKeywords ) > 0 ) {
1150                         $strip = array(
1151                                 "/<.*?>/" => '',
1152                                 "/_/" => ' '
1153                         );
1154                         $ret .= "\t\t<meta name=\"keywords\" content=\"" .
1155                           htmlspecialchars(preg_replace(array_keys($strip), array_values($strip),implode( ",", $this->mKeywords ))) . "\" />\n";
1156                 }
1157                 foreach ( $this->mLinktags as $tag ) {
1158                         $ret .= "\t\t<link";
1159                         foreach( $tag as $attr => $val ) {
1160                                 $ret .= " $attr=\"" . htmlspecialchars( $val ) . "\"";
1161                         }
1162                         $ret .= " />\n";
1163                 }
1164                 if( $this->isSyndicated() ) {
1165                         # FIXME: centralize the mime-type and name information in Feed.php
1166                         $link = $wgRequest->escapeAppendQuery( 'feed=rss' );
1167                         $ret .= "<link rel='alternate' type='application/rss+xml' title='RSS 2.0' href='$link' />\n";
1168                         $link = $wgRequest->escapeAppendQuery( 'feed=atom' );
1169                         $ret .= "<link rel='alternate' type='application/atom+xml' title='Atom 1.0' href='$link' />\n";
1170                 }
1171
1172                 return $ret;
1173         }
1174
1175         /**
1176          * Turn off regular page output and return an error reponse
1177          * for when rate limiting has triggered.
1178          * @todo i18n
1179          */
1180         public function rateLimited() {
1181                 global $wgOut;
1182                 $wgOut->disable();
1183                 wfHttpError( 500, 'Internal Server Error',
1184                         'Sorry, the server has encountered an internal error. ' .
1185                         'Please wait a moment and hit "refresh" to submit the request again.' );
1186         }
1187
1188         /**
1189          * Show an "add new section" link?
1190          *
1191          * @return bool True if the parser output instructs us to add one
1192          */
1193         public function showNewSectionLink() {
1194                 return $this->mNewSectionLink;
1195         }
1196 }
1197 ?>