includes/Skin.php

   1 <?php
   2 /**
   3  * @defgroup Skins Skins
   4  */
   5
   6 if ( ! defined( 'MEDIAWIKI' ) )
   7         die( 1 );
   8
   9 /**
  10  * The main skin class that provide methods and properties for all other skins.
  11  * This base class is also the "Standard" skin.
  12  *
  13  * See docs/skin.txt for more information.
  14  *
  15  * @ingroup Skins
  16  */
  17 class Skin extends Linker {
  18         /**#@+
  19          * @private
  20          */
  21         var $mWatchLinkNum = 0; // Appended to end of watch link id's
  22         // How many search boxes have we made?  Avoid duplicate id's.
  23         protected $searchboxes = '';
  24         /**#@-*/
  25         protected $mRevisionId; // The revision ID we're looking at, null if not applicable.
  26         protected $skinname = 'standard' ;
  27
  28         /** Constructor, call parent constructor */
  29         function Skin() { parent::__construct(); }
  30
  31         /**
  32          * Fetch the set of available skins.
  33          * @return array of strings
  34          * @static
  35          */
  36         static function getSkinNames() {
  37                 global $wgValidSkinNames;
  38                 static $skinsInitialised = false;
  39                 if ( !$skinsInitialised ) {
  40                         # Get a list of available skins
  41                         # Build using the regular expression '^(.*).php$'
  42                         # Array keys are all lower case, array value keep the case used by filename
  43                         #
  44                         wfProfileIn( __METHOD__ . '-init' );
  45                         global $wgStyleDirectory;
  46                         $skinDir = dir( $wgStyleDirectory );
  47
  48                         # while code from www.php.net
  49                         while (false !== ($file = $skinDir->read())) {
  50                                 // Skip non-PHP files, hidden files, and '.dep' includes
  51                                 $matches = array();
  52                                 if(preg_match('/^([^.]*)\.php$/',$file, $matches)) {
  53                                         $aSkin = $matches[1];
  54                                         $wgValidSkinNames[strtolower($aSkin)] = $aSkin;
  55                                 }
  56                         }
  57                         $skinDir->close();
  58                         $skinsInitialised = true;
  59                         wfProfileOut( __METHOD__ . '-init' );
  60                 }
  61                 return $wgValidSkinNames;
  62         }
  63
  64         /**
  65          * Normalize a skin preference value to a form that can be loaded.
  66          * If a skin can't be found, it will fall back to the configured
  67          * default (or the old 'Classic' skin if that's broken).
  68          * @param string $key
  69          * @return string
  70          * @static
  71          */
  72         static function normalizeKey( $key ) {
  73                 global $wgDefaultSkin;
  74                 $skinNames = Skin::getSkinNames();
  75
  76                 if( $key == '' ) {
  77                         // Don't return the default immediately;
  78                         // in a misconfiguration we need to fall back.
  79                         $key = $wgDefaultSkin;
  80                 }
  81
  82                 if( isset( $skinNames[$key] ) ) {
  83                         return $key;
  84                 }
  85
  86                 // Older versions of the software used a numeric setting
  87                 // in the user preferences.
  88                 $fallback = array(
  89                         0 => $wgDefaultSkin,
  90                         1 => 'nostalgia',
  91                         2 => 'cologneblue' );
  92
  93                 if( isset( $fallback[$key] ) ){
  94                         $key = $fallback[$key];
  95                 }
  96
  97                 if( isset( $skinNames[$key] ) ) {
  98                         return $key;
  99                 } else {
 100                         return 'monobook';
 101                 }
 102         }
 103
 104         /**
 105          * Factory method for loading a skin of a given type
 106          * @param string $key 'monobook', 'standard', etc
 107          * @return Skin
 108          * @static
 109          */
 110         static function &newFromKey( $key ) {
 111                 global $wgStyleDirectory;
 112
 113                 $key = Skin::normalizeKey( $key );
 114
 115                 $skinNames = Skin::getSkinNames();
 116                 $skinName = $skinNames[$key];
 117                 $className = 'Skin'.ucfirst($key);
 118
 119                 # Grab the skin class and initialise it.
 120                 if ( !class_exists( $className ) ) {
 121                         // Preload base classes to work around APC/PHP5 bug
 122                         $deps = "{$wgStyleDirectory}/{$skinName}.deps.php";
 123                         if( file_exists( $deps ) ) include_once( $deps );
 124                         require_once( "{$wgStyleDirectory}/{$skinName}.php" );
 125
 126                         # Check if we got if not failback to default skin
 127                         if( !class_exists( $className ) ) {
 128                                 # DO NOT die if the class isn't found. This breaks maintenance
 129                                 # scripts and can cause a user account to be unrecoverable
 130                                 # except by SQL manipulation if a previously valid skin name
 131                                 # is no longer valid.
 132                                 wfDebug( "Skin class does not exist: $className\n" );
 133                                 $className = 'SkinMonobook';
 134                                 require_once( "{$wgStyleDirectory}/MonoBook.php" );
 135                         }
 136                 }
 137                 $skin = new $className;
 138                 return $skin;
 139         }
 140
 141         /** @return string path to the skin stylesheet */
 142         function getStylesheet() {
 143                 return 'common/wikistandard.css';
 144         }
 145
 146         /** @return string skin name */
 147         public function getSkinName() {
 148                 return $this->skinname;
 149         }
 150
 151         function qbSetting() {
 152                 global $wgOut, $wgUser;
 153
 154                 if ( $wgOut->isQuickbarSuppressed() ) { return 0; }
 155                 $q = $wgUser->getOption( 'quickbar', 0 );
 156                 return $q;
 157         }
 158
 159         function initPage( &$out ) {
 160                 global $wgFavicon, $wgAppleTouchIcon;
 161
 162                 wfProfileIn( __METHOD__ );
 163
 164                 if( false !== $wgFavicon ) {
 165                         $out->addLink( array( 'rel' => 'shortcut icon', 'href' => $wgFavicon ) );
 166                 }
 167
 168                 if( false !== $wgAppleTouchIcon ) {
 169                         $out->addLink( array( 'rel' => 'apple-touch-icon', 'href' => $wgAppleTouchIcon ) );
 170                 }
 171
 172                 # OpenSearch description link
 173                 $out->addLink( array(
 174                         'rel' => 'search',
 175                         'type' => 'application/opensearchdescription+xml',
 176                         'href' => wfScript( 'opensearch_desc' ),
 177                         'title' => wfMsgForContent( 'opensearch-desc' ),
 178                 ));
 179
 180                 $this->addMetadataLinks($out);
 181
 182                 $this->mRevisionId = $out->mRevisionId;
 183
 184                 $this->preloadExistence();
 185
 186                 wfProfileOut( __METHOD__ );
 187         }
 188
 189         /**
 190          * Preload the existence of three commonly-requested pages in a single query
 191          */
 192         function preloadExistence() {
 193                 global $wgUser, $wgTitle;
 194
 195                 // User/talk link
 196                 $titles = array( $wgUser->getUserPage(), $wgUser->getTalkPage() );
 197
 198                 // Other tab link
 199                 if ( $wgTitle->getNamespace() == NS_SPECIAL ) {
 200                         // nothing
 201                 } elseif ( $wgTitle->isTalkPage() ) {
 202                         $titles[] = $wgTitle->getSubjectPage();
 203                 } else {
 204                         $titles[] = $wgTitle->getTalkPage();
 205                 }
 206
 207                 $lb = new LinkBatch( $titles );
 208                 $lb->execute();
 209         }
 210
 211         function addMetadataLinks( &$out ) {
 212                 global $wgTitle, $wgEnableDublinCoreRdf, $wgEnableCreativeCommonsRdf;
 213                 global $wgRightsPage, $wgRightsUrl;
 214
 215                 if( $out->isArticleRelated() ) {
 216                         # note: buggy CC software only reads first "meta" link
 217                         if( $wgEnableCreativeCommonsRdf ) {
 218                                 $out->addMetadataLink( array(
 219                                         'title' => 'Creative Commons',
 220                                         'type' => 'application/rdf+xml',
 221                                         'href' => $wgTitle->getLocalURL( 'action=creativecommons') ) );
 222                         }
 223                         if( $wgEnableDublinCoreRdf ) {
 224                                 $out->addMetadataLink( array(
 225                                         'title' => 'Dublin Core',
 226                                         'type' => 'application/rdf+xml',
 227                                         'href' => $wgTitle->getLocalURL( 'action=dublincore' ) ) );
 228                         }
 229                 }
 230                 $copyright = '';
 231                 if( $wgRightsPage ) {
 232                         $copy = Title::newFromText( $wgRightsPage );
 233                         if( $copy ) {
 234                                 $copyright = $copy->getLocalURL();
 235                         }
 236                 }
 237                 if( !$copyright && $wgRightsUrl ) {
 238                         $copyright = $wgRightsUrl;
 239                 }
 240                 if( $copyright ) {
 241                         $out->addLink( array(
 242                                 'rel' => 'copyright',
 243                                 'href' => $copyright ) );
 244                 }
 245         }
 246
 247         function outputPage( &$out ) {
 248                 global $wgDebugComments;
 249
 250                 wfProfileIn( __METHOD__ );
 251                 $this->initPage( $out );
 252
 253                 $out->out( $out->headElement() );
 254
 255                 $out->out( "\n<body" );
 256                 $ops = $this->getBodyOptions();
 257                 foreach ( $ops as $name => $val ) {
 258                         $out->out( " $name='$val'" );
 259                 }
 260                 $out->out( ">\n" );
 261                 if ( $wgDebugComments ) {
 262                         $out->out( "<!-- Wiki debugging output:\n" .
 263                           $out->mDebugtext . "-->\n" );
 264                 }
 265
 266                 $out->out( $this->beforeContent() );
 267
 268                 $out->out( $out->mBodytext . "\n" );
 269
 270                 $out->out( $this->afterContent() );
 271
 272                 $out->out( $this->bottomScripts() );
 273
 274                 $out->out( wfReportTime() );
 275
 276                 $out->out( "\n</body></html>" );
 277                 wfProfileOut( __METHOD__ );
 278         }
 279
 280         static function makeVariablesScript( $data ) {
 281                 global $wgJsMimeType;
 282
 283                 $r = array( "<script type= \"$wgJsMimeType\">/*<![CDATA[*/" );
 284                 foreach ( $data as $name => $value ) {
 285                         $encValue = Xml::encodeJsVar( $value );
 286                         $r[] = "var $name = $encValue;";
 287                 }
 288                 $r[] = "/*]]>*/</script>\n";
 289
 290                 return implode( "\n\t\t", $r );
 291         }
 292
 293         /**
 294          * Make a <script> tag containing global variables
 295          * @param array $data Associative array containing one element:
 296          *     skinname => the skin name
 297          * The odd calling convention is for backwards compatibility
 298          */
 299         static function makeGlobalVariablesScript( $data ) {
 300                 global $wgScript, $wgStylePath, $wgUser;
 301                 global $wgArticlePath, $wgScriptPath, $wgServer, $wgContLang, $wgLang;
 302                 global $wgTitle, $wgCanonicalNamespaceNames, $wgOut, $wgArticle;
 303                 global $wgBreakFrames, $wgRequest, $wgVariantArticlePath, $wgActionPaths;
 304                 global $wgUseAjax, $wgAjaxWatch;
 305                 global $wgVersion, $wgEnableAPI, $wgEnableWriteAPI;
 306                 global $wgRestrictionTypes, $wgLivePreview;
 307                 global $wgMWSuggestTemplate, $wgDBname, $wgEnableMWSuggest;
 308
 309                 $ns = $wgTitle->getNamespace();
 310                 $nsname = isset( $wgCanonicalNamespaceNames[ $ns ] ) ? $wgCanonicalNamespaceNames[ $ns ] : $wgTitle->getNsText();
 311
 312                 $vars = array(
 313                         'skin' => $data['skinname'],
 314                         'stylepath' => $wgStylePath,
 315                         'wgArticlePath' => $wgArticlePath,
 316                         'wgScriptPath' => $wgScriptPath,
 317                         'wgScript' => $wgScript,
 318                         'wgVariantArticlePath' => $wgVariantArticlePath,
 319                         'wgActionPaths' => $wgActionPaths,
 320                         'wgServer' => $wgServer,
 321                         'wgCanonicalNamespace' => $nsname,
 322                         'wgCanonicalSpecialPageName' => SpecialPage::resolveAlias( $wgTitle->getDBkey() ),
 323                         'wgNamespaceNumber' => $wgTitle->getNamespace(),
 324                         'wgPageName' => $wgTitle->getPrefixedDBKey(),
 325                         'wgTitle' => $wgTitle->getText(),
 326                         'wgAction' => $wgRequest->getText( 'action', 'view' ),
 327                         'wgArticleId' => $wgTitle->getArticleId(),
 328                         'wgIsArticle' => $wgOut->isArticle(),
 329                         'wgUserName' => $wgUser->isAnon() ? NULL : $wgUser->getName(),
 330                         'wgUserGroups' => $wgUser->isAnon() ? NULL : $wgUser->getEffectiveGroups(),
 331                         'wgUserLanguage' => $wgLang->getCode(),
 332                         'wgContentLanguage' => $wgContLang->getCode(),
 333                         'wgBreakFrames' => $wgBreakFrames,
 334                         'wgCurRevisionId' => isset( $wgArticle ) ? $wgArticle->getLatest() : 0,
 335                         'wgVersion' => $wgVersion,
 336                         'wgEnableAPI' => $wgEnableAPI,
 337                         'wgEnableWriteAPI' => $wgEnableWriteAPI,
 338                 );
 339
 340                 if( $wgUseAjax && $wgEnableMWSuggest && !$wgUser->getOption( 'disablesuggest', false )){
 341                         $vars['wgMWSuggestTemplate'] = SearchEngine::getMWSuggestTemplate();
 342                         $vars['wgDBname'] = $wgDBname;
 343                         $vars['wgSearchNamespaces'] = SearchEngine::userNamespaces( $wgUser );
 344                         $vars['wgMWSuggestMessages'] = array( wfMsg('search-mwsuggest-enabled'), wfMsg('search-mwsuggest-disabled'));
 345                 }
 346
 347                 foreach( $wgRestrictionTypes as $type )
 348                         $vars['wgRestriction' . ucfirst( $type )] = $wgTitle->getRestrictions( $type );
 349
 350                 if ( $wgLivePreview && $wgUser->getOption( 'uselivepreview' ) ) {
 351                         $vars['wgLivepreviewMessageLoading'] = wfMsg( 'livepreview-loading' );
 352                         $vars['wgLivepreviewMessageReady']   = wfMsg( 'livepreview-ready' );
 353                         $vars['wgLivepreviewMessageFailed']  = wfMsg( 'livepreview-failed' );
 354                         $vars['wgLivepreviewMessageError']   = wfMsg( 'livepreview-error' );
 355                 }
 356
 357                 if($wgUseAjax && $wgAjaxWatch && $wgUser->isLoggedIn() ) {
 358                         $msgs = (object)array();
 359                         foreach ( array( 'watch', 'unwatch', 'watching', 'unwatching' ) as $msgName ) {
 360                                 $msgs->{$msgName . 'Msg'} = wfMsg( $msgName );
 361                         }
 362                         $vars['wgAjaxWatch'] = $msgs;
 363                 }
 364
 365                 wfRunHooks('MakeGlobalVariablesScript', array(&$vars));
 366
 367                 return self::makeVariablesScript( $vars );
 368         }
 369
 370         function getHeadScripts( $allowUserJs ) {
 371                 global $wgStylePath, $wgUser, $wgJsMimeType, $wgStyleVersion;
 372
 373                 $r = self::makeGlobalVariablesScript( array( 'skinname' => $this->getSkinName() ) );
 374
 375                 $r .= "<script type=\"{$wgJsMimeType}\" src=\"{$wgStylePath}/common/wikibits.js?$wgStyleVersion\"></script>\n";
 376                 global $wgUseSiteJs;
 377                 if ($wgUseSiteJs) {
 378                         $jsCache = $wgUser->isLoggedIn() ? '&smaxage=0' : '';
 379                         $r .= "<script type=\"$wgJsMimeType\" src=\"".
 380                                 htmlspecialchars(self::makeUrl('-',
 381                                         "action=raw$jsCache&gen=js&useskin=" .
 382                                         urlencode( $this->getSkinName() ) ) ) .
 383                                 "\"><!-- site js --></script>\n";
 384                 }
 385                 if( $allowUserJs && $wgUser->isLoggedIn() ) {
 386                         $userpage = $wgUser->getUserPage();
 387                         $userjs = htmlspecialchars( self::makeUrl(
 388                                 $userpage->getPrefixedText().'/'.$this->getSkinName().'.js',
 389                                 'action=raw&ctype='.$wgJsMimeType));
 390                         $r .= '<script type="'.$wgJsMimeType.'" src="'.$userjs."\"></script>\n";
 391                 }
 392                 return $r;
 393         }
 394
 395         /**
 396          * To make it harder for someone to slip a user a fake
 397          * user-JavaScript or user-CSS preview, a random token
 398          * is associated with the login session. If it's not
 399          * passed back with the preview request, we won't render
 400          * the code.
 401          *
 402          * @param string $action
 403          * @return bool
 404          * @private
 405          */
 406         function userCanPreview( $action ) {
 407                 global $wgTitle, $wgRequest, $wgUser;
 408
 409                 if( $action != 'submit' )
 410                         return false;
 411                 if( !$wgRequest->wasPosted() )
 412                         return false;
 413                 if( !$wgTitle->userCanEditCssJsSubpage() )
 414                         return false;
 415                 return $wgUser->matchEditToken(
 416                         $wgRequest->getVal( 'wpEditToken' ) );
 417         }
 418
 419         # get the user/site-specific stylesheet, SkinTemplate loads via RawPage.php (settings are cached that way)
 420         function getUserStylesheet() {
 421                 global $wgStylePath, $wgRequest, $wgContLang, $wgSquidMaxage, $wgStyleVersion;
 422                 $sheet = $this->getStylesheet();
 423                 $s = "@import \"$wgStylePath/common/shared.css?$wgStyleVersion\";\n";
 424                 $s .= "@import \"$wgStylePath/common/oldshared.css?$wgStyleVersion\";\n";
 425                 $s .= "@import \"$wgStylePath/$sheet?$wgStyleVersion\";\n";
 426                 if($wgContLang->isRTL()) $s .= "@import \"$wgStylePath/common/common_rtl.css?$wgStyleVersion\";\n";
 427
 428                 $query = "usemsgcache=yes&action=raw&ctype=text/css&smaxage=$wgSquidMaxage";
 429                 $s .= '@import "' . self::makeNSUrl( 'Common.css', $query, NS_MEDIAWIKI ) . "\";\n" .
 430                         '@import "' . self::makeNSUrl( ucfirst( $this->getSkinName() . '.css' ), $query, NS_MEDIAWIKI ) . "\";\n";
 431
 432                 $s .= $this->doGetUserStyles();
 433                 return $s."\n";
 434         }
 435
 436         /**
 437          * This returns MediaWiki:Common.js, and derived classes may add other JS.
 438          * Despite its name, it does *not* return any custom user JS from user
 439          * subpages.  The returned script is sitewide and publicly cacheable and
 440          * therefore must not include anything that varies according to user,
 441          * interface language, etc. (although it may vary by skin).  See
 442          * makeGlobalVariablesScript for things that can vary per page view and are
 443          * not cacheable.
 444          *
 445          * @return string Raw JavaScript to be returned
 446          */
 447         public function getUserJs() {
 448                 wfProfileIn( __METHOD__ );
 449
 450                 global $wgStylePath;
 451                 $s = "/* generated javascript */\n";
 452                 $s .= "var skin = '" . Xml::escapeJsString( $this->getSkinName() ) . "';\n";
 453                 $s .= "var stylepath = '" . Xml::escapeJsString( $wgStylePath ) . "';";
 454                 $s .= "\n\n/* MediaWiki:Common.js */\n";
 455                 $commonJs = wfMsgForContent('common.js');
 456                 if ( !wfEmptyMsg ( 'common.js', $commonJs ) ) {
 457                         $s .= $commonJs;
 458                 }
 459                 wfProfileOut( __METHOD__ );
 460                 return $s;
 461         }
 462
 463         /**
 464          * Return html code that include User stylesheets
 465          */
 466         function getUserStyles() {
 467                 $s = "<style type='text/css'>\n";
 468                 $s .= "/*/*/ /*<![CDATA[*/\n"; # <-- Hide the styles from Netscape 4 without hiding them from IE/Mac
 469                 $s .= $this->getUserStylesheet();
 470                 $s .= "/*]]>*/ /* */\n";
 471                 $s .= "</style>\n";
 472                 return $s;
 473         }
 474
 475         /**
 476          * Some styles that are set by user through the user settings interface.
 477          */
 478         function doGetUserStyles() {
 479                 global $wgUser, $wgUser, $wgRequest, $wgTitle, $wgAllowUserCss;
 480
 481                 $s = '';
 482
 483                 if( $wgAllowUserCss && $wgUser->isLoggedIn() ) { # logged in
 484                         if($wgTitle->isCssSubpage() && $this->userCanPreview( $wgRequest->getText( 'action' ) ) ) {
 485                                 $s .= $wgRequest->getText('wpTextbox1');
 486                         } else {
 487                                 $userpage = $wgUser->getUserPage();
 488                                 $s.= '@import "'.self::makeUrl(
 489                                         $userpage->getPrefixedText().'/'.$this->getSkinName().'.css',
 490                                         'action=raw&ctype=text/css').'";'."\n";
 491                         }
 492                 }
 493
 494                 return $s . $this->reallyDoGetUserStyles();
 495         }
 496
 497         function reallyDoGetUserStyles() {
 498                 global $wgUser;
 499                 $s = '';
 500                 if (($undopt = $wgUser->getOption("underline")) < 2) {
 501                         $underline = $undopt ? 'underline' : 'none';
 502                         $s .= "a { text-decoration: $underline; }\n";
 503                 }
 504                 if( $wgUser->getOption( 'highlightbroken' ) ) {
 505                         $s .= "a.new, #quickbar a.new { color: #CC2200; }\n";
 506                 } else {
 507                         $s .= <<<END
 508 a.new, #quickbar a.new,
 509 a.stub, #quickbar a.stub {
 510         color: inherit;
 511 }
 512 a.new:after, #quickbar a.new:after {
 513         content: "?";
 514         color: #CC2200;
 515 }
 516 a.stub:after, #quickbar a.stub:after {
 517         content: "!";
 518         color: #772233;
 519 }
 520 END;
 521                 }
 522                 if( $wgUser->getOption( 'justify' ) ) {
 523                         $s .= "#article, #bodyContent, #mw_content { text-align: justify; }\n";
 524                 }
 525                 if( !$wgUser->getOption( 'showtoc' ) ) {
 526                         $s .= "#toc { display: none; }\n";
 527                 }
 528                 if( !$wgUser->getOption( 'editsection' ) ) {
 529                         $s .= ".editsection { display: none; }\n";
 530                 }
 531                 return $s;
 532         }
 533
 534         function getBodyOptions() {
 535                 global $wgUser, $wgTitle, $wgOut, $wgRequest, $wgContLang;
 536
 537                 extract( $wgRequest->getValues( 'oldid', 'redirect', 'diff' ) );
 538
 539                 if ( 0 != $wgTitle->getNamespace() ) {
 540                         $a = array( 'bgcolor' => '#ffffec' );
 541                 }
 542                 else $a = array( 'bgcolor' => '#FFFFFF' );
 543                 if($wgOut->isArticle() && $wgUser->getOption('editondblclick') &&
 544                   $wgTitle->userCan( 'edit' ) ) {
 545                         $s = $wgTitle->getFullURL( $this->editUrlOptions() );
 546                         $s = 'document.location = "' .wfEscapeJSString( $s ) .'";';
 547                         $a += array ('ondblclick' => $s);
 548
 549                 }
 550                 $a['onload'] = $wgOut->getOnloadHandler();
 551                 $a['class'] =
 552                         'mediawiki ns-'.$wgTitle->getNamespace().
 553                         ' '.($wgContLang->isRTL() ? "rtl" : "ltr").
 554                         ' '.Sanitizer::escapeClass( 'page-'.$wgTitle->getPrefixedText() );
 555                 return $a;
 556         }
 557
 558         /**
 559          * URL to the logo
 560          */
 561         function getLogo() {
 562                 global $wgLogo;
 563                 return $wgLogo;
 564         }
 565
 566         /**
 567          * This will be called immediately after the <body> tag.  Split into
 568          * two functions to make it easier to subclass.
 569          */
 570         function beforeContent() {
 571                 return $this->doBeforeContent();
 572         }
 573
 574         function doBeforeContent() {
 575                 global $wgContLang;
 576                 $fname = 'Skin::doBeforeContent';
 577                 wfProfileIn( $fname );
 578
 579                 $s = '';
 580                 $qb = $this->qbSetting();
 581
 582                 if( $langlinks = $this->otherLanguages() ) {
 583                         $rows = 2;
 584                         $borderhack = '';
 585                 } else {
 586                         $rows = 1;
 587                         $langlinks = false;
 588                         $borderhack = 'class="top"';
 589                 }
 590
 591                 $s .= "\n<div id='content'>\n<div id='topbar'>\n" .
 592                   "<table border='0' cellspacing='0' width='98%'>\n<tr>\n";
 593
 594                 $shove = ($qb != 0);
 595                 $left = ($qb == 1 || $qb == 3);
 596                 if($wgContLang->isRTL()) $left = !$left;
 597
 598                 if ( !$shove ) {
 599                         $s .= "<td class='top' align='left' valign='top' rowspan='{$rows}'>\n" .
 600                           $this->logoText() . '</td>';
 601                 } elseif( $left ) {
 602                         $s .= $this->getQuickbarCompensator( $rows );
 603                 }
 604                 $l = $wgContLang->isRTL() ? 'right' : 'left';
 605                 $s .= "<td {$borderhack} align='$l' valign='top'>\n";
 606
 607                 $s .= $this->topLinks() ;
 608                 $s .= "<p class='subtitle'>" . $this->pageTitleLinks() . "</p>\n";
 609
 610                 $r = $wgContLang->isRTL() ? "left" : "right";
 611                 $s .= "</td>\n<td {$borderhack} valign='top' align='$r' nowrap='nowrap'>";
 612                 $s .= $this->nameAndLogin();
 613                 $s .= "\n<br />" . $this->searchForm() . "</td>";
 614
 615                 if ( $langlinks ) {
 616                         $s .= "</tr>\n<tr>\n<td class='top' colspan=\"2\">$langlinks</td>\n";
 617                 }
 618
 619                 if ( $shove && !$left ) { # Right
 620                         $s .= $this->getQuickbarCompensator( $rows );
 621                 }
 622                 $s .= "</tr>\n</table>\n</div>\n";
 623                 $s .= "\n<div id='article'>\n";
 624
 625                 $notice = wfGetSiteNotice();
 626                 if( $notice ) {
 627                         $s .= "\n<div id='siteNotice'>$notice</div>\n";
 628                 }
 629                 $s .= $this->pageTitle();
 630                 $s .= $this->pageSubtitle() ;
 631                 $s .= $this->getCategories();
 632                 wfProfileOut( $fname );
 633                 return $s;
 634         }
 635
 636
 637         function getCategoryLinks() {
 638                 global $wgOut, $wgTitle, $wgUseCategoryBrowser;
 639                 global $wgContLang, $wgUser;
 640
 641                 if( count( $wgOut->mCategoryLinks ) == 0 ) return '';
 642
 643                 # Separator
 644                 $sep = wfMsgHtml( 'catseparator' );
 645
 646                 // Use Unicode bidi embedding override characters,
 647                 // to make sure links don't smash each other up in ugly ways.
 648                 $dir = $wgContLang->isRTL() ? 'rtl' : 'ltr';
 649                 $embed = "<span dir='$dir'>";
 650                 $pop = '</span>';
 651
 652                 $allCats = $wgOut->getCategoryLinks();
 653                 $s = '';
 654                 $colon = wfMsgExt( 'colon-separator', 'escapenoentities' );
 655                 if ( !empty( $allCats['normal'] ) ) {
 656                         $t = $embed . implode ( "{$pop} {$sep} {$embed}" , $allCats['normal'] ) . $pop;
 657
 658                         $msg = wfMsgExt( 'pagecategories', array( 'parsemag', 'escapenoentities' ), count( $allCats['normal'] ) );
 659                         $s .= '<div id="mw-normal-catlinks">' .
 660                                 $this->link( Title::newFromText( wfMsgForContent('pagecategorieslink') ), $msg )
 661                                 . $colon . $t . '</div>';
 662                 }
 663
 664                 # Hidden categories
 665                 if ( isset( $allCats['hidden'] ) ) {
 666                         if ( $wgUser->getBoolOption( 'showhiddencats' ) ) {
 667                                 $class ='mw-hidden-cats-user-shown';
 668                         } elseif ( $wgTitle->getNamespace() == NS_CATEGORY ) {
 669                                 $class = 'mw-hidden-cats-ns-shown';
 670                         } else {
 671                                 $class = 'mw-hidden-cats-hidden';
 672                         }
 673                         $s .= "<div id=\"mw-hidden-catlinks\" class=\"$class\">" .
 674                                 wfMsgExt( 'hidden-categories', array( 'parsemag', 'escapenoentities' ), count( $allCats['hidden'] ) ) .
 675                                 $colon . $embed . implode( "$pop $sep $embed", $allCats['hidden'] ) . $pop .
 676                                 "</div>";
 677                 }
 678
 679                 # optional 'dmoz-like' category browser. Will be shown under the list
 680                 # of categories an article belong to
 681                 if($wgUseCategoryBrowser) {
 682                         $s .= '<br /><hr />';
 683
 684                         # get a big array of the parents tree
 685                         $parenttree = $wgTitle->getParentCategoryTree();
 686                         # Skin object passed by reference cause it can not be
 687                         # accessed under the method subfunction drawCategoryBrowser
 688                         $tempout = explode("\n", Skin::drawCategoryBrowser($parenttree, $this) );
 689                         # Clean out bogus first entry and sort them
 690                         unset($tempout[0]);
 691                         asort($tempout);
 692                         # Output one per line
 693                         $s .= implode("<br />\n", $tempout);
 694                 }
 695
 696                 return $s;
 697         }
 698
 699         /** Render the array as a serie of links.
 700          * @param $tree Array: categories tree returned by Title::getParentCategoryTree
 701          * @param &skin Object: skin passed by reference
 702          * @return String separated by &gt;, terminate with "\n"
 703          */
 704         function drawCategoryBrowser($tree, &$skin) {
 705                 $return = '';
 706                 foreach ($tree as $element => $parent) {
 707                         if (empty($parent)) {
 708                                 # element start a new list
 709                                 $return .= "\n";
 710                         } else {
 711                                 # grab the others elements
 712                                 $return .= Skin::drawCategoryBrowser($parent, $skin) . ' &gt; ';
 713                         }
 714                         # add our current element to the list
 715                         $eltitle = Title::newFromText($element);
 716                         $return .=  $skin->link( $eltitle, $eltitle->getText() ) ;
 717                 }
 718                 return $return;
 719         }
 720
 721         function getCategories() {
 722                 $catlinks=$this->getCategoryLinks();
 723
 724                 $classes = 'catlinks';
 725
 726                 if( strpos( $catlinks, '<div id="mw-normal-catlinks">' ) === false &&
 727                         strpos( $catlinks, '<div id="mw-hidden-catlinks" class="mw-hidden-cats-hidden">' ) !== false ) {
 728                         $classes .= ' catlinks-allhidden';
 729                 }
 730
 731                 if( !empty( $catlinks ) ){
 732                         return "<div id='catlinks' class='$classes'>{$catlinks}</div>";
 733                 }
 734         }
 735
 736         function getQuickbarCompensator( $rows = 1 ) {
 737                 return "<td width='152' rowspan='{$rows}'>&nbsp;</td>";
 738         }
 739
 740         /**
 741          * This gets called shortly before the \</body\> tag.
 742          * @return String HTML to be put before \</body\>
 743          */
 744         function afterContent() {
 745                 $printfooter = "<div class=\"printfooter\">\n" . $this->printFooter() . "</div>\n";
 746                 return $printfooter . $this->doAfterContent();
 747         }
 748
 749         /**
 750          * This gets called shortly before the \</body\> tag.
 751          * @return String HTML-wrapped JS code to be put before \</body\>
 752          */
 753         function bottomScripts() {
 754                 global $wgJsMimeType;
 755                 $bottomScriptText = "\n\t\t<script type=\"$wgJsMimeType\">if (window.runOnloadHook) runOnloadHook();</script>\n";
 756                 wfRunHooks( 'SkinAfterBottomScripts', array( $this, &$bottomScriptText ) );
 757                 return $bottomScriptText;
 758         }
 759
 760         /** @return string Retrievied from HTML text */
 761         function printSource() {
 762                 global $wgTitle;
 763                 $url = htmlspecialchars( $wgTitle->getFullURL() );
 764                 return wfMsg( 'retrievedfrom', '<a href="'.$url.'">'.$url.'</a>' );
 765         }
 766
 767         function printFooter() {
 768                 return "<p>" .  $this->printSource() .
 769                         "</p>\n\n<p>" . $this->pageStats() . "</p>\n";
 770         }
 771
 772         /** overloaded by derived classes */
 773         function doAfterContent() { }
 774
 775         function pageTitleLinks() {
 776                 global $wgOut, $wgTitle, $wgUser, $wgRequest;
 777
 778                 $oldid = $wgRequest->getVal( 'oldid' );
 779                 $diff = $wgRequest->getVal( 'diff' );
 780                 $action = $wgRequest->getText( 'action' );
 781
 782                 $s = $this->printableLink();
 783                 $disclaimer = $this->disclaimerLink(); # may be empty
 784                 if( $disclaimer ) {
 785                         $s .= ' | ' . $disclaimer;
 786                 }
 787                 $privacy = $this->privacyLink(); # may be empty too
 788                 if( $privacy ) {
 789                         $s .= ' | ' . $privacy;
 790                 }
 791
 792                 if ( $wgOut->isArticleRelated() ) {
 793                         if ( $wgTitle->getNamespace() == NS_IMAGE ) {
 794                                 $name = $wgTitle->getDBkey();
 795                                 $image = wfFindFile( $wgTitle );
 796                                 if( $image ) {
 797                                         $link = htmlspecialchars( $image->getURL() );
 798                                         $style = $this->getInternalLinkAttributes( $link, $name );
 799                                         $s .= " | <a href=\"{$link}\"{$style}>{$name}</a>";
 800                                 }
 801                         }
 802                 }
 803                 if ( 'history' == $action || isset( $diff ) || isset( $oldid ) ) {
 804                         $s .= ' | ' . $this->makeKnownLinkObj( $wgTitle,
 805                                         wfMsg( 'currentrev' ) );
 806                 }
 807
 808                 if ( $wgUser->getNewtalk() ) {
 809                         # do not show "You have new messages" text when we are viewing our
 810                         # own talk page
 811                         if( !$wgTitle->equals( $wgUser->getTalkPage() ) ) {
 812                                 $tl = $this->makeKnownLinkObj( $wgUser->getTalkPage(), wfMsgHtml( 'newmessageslink' ), 'redirect=no' );
 813                                 $dl = $this->makeKnownLinkObj( $wgUser->getTalkPage(), wfMsgHtml( 'newmessagesdifflink' ), 'diff=cur' );
 814                                 $s.= ' | <strong>'. wfMsg( 'youhavenewmessages', $tl, $dl ) . '</strong>';
 815                                 # disable caching
 816                                 $wgOut->setSquidMaxage(0);
 817                                 $wgOut->enableClientCache(false);
 818                         }
 819                 }
 820
 821                 $undelete = $this->getUndeleteLink();
 822                 if( !empty( $undelete ) ) {
 823                         $s .= ' | '.$undelete;
 824                 }
 825                 return $s;
 826         }
 827
 828         function getUndeleteLink() {
 829                 global $wgUser, $wgTitle, $wgContLang, $wgLang, $action;
 830                 if(     $wgUser->isAllowed( 'deletedhistory' ) &&
 831                         (($wgTitle->getArticleId() == 0) || ($action == "history")) &&
 832                         ($n = $wgTitle->isDeleted() ) )
 833                 {
 834                         if ( $wgUser->isAllowed( 'undelete' ) ) {
 835                                 $msg = 'thisisdeleted';
 836                         } else {
 837                                 $msg = 'viewdeleted';
 838                         }
 839                         return wfMsg( $msg,
 840                                 $this->makeKnownLinkObj(
 841                                         SpecialPage::getTitleFor( 'Undelete', $wgTitle->getPrefixedDBkey() ),
 842                                         wfMsgExt( 'restorelink', array( 'parsemag', 'escape' ), $wgLang->formatNum( $n ) ) ) );
 843                 }
 844                 return '';
 845         }
 846
 847         function printableLink() {
 848                 global $wgOut, $wgFeedClasses, $wgRequest;
 849
 850                 $printurl = $wgRequest->escapeAppendQuery( 'printable=yes' );
 851
 852                 $s = "<a href=\"$printurl\">" . wfMsg( 'printableversion' ) . '</a>';
 853                 if( $wgOut->isSyndicated() ) {
 854                         foreach( $wgFeedClasses as $format => $class ) {
 855                                 $feedurl = $wgRequest->escapeAppendQuery( "feed=$format" );
 856                                 $s .= " | <a href=\"$feedurl\">{$format}</a>";
 857                         }
 858                 }
 859                 return $s;
 860         }
 861
 862         function pageTitle() {
 863                 global $wgOut;
 864                 $s = '<h1 class="pagetitle">' . htmlspecialchars( $wgOut->getPageTitle() ) . '</h1>';
 865                 return $s;
 866         }
 867
 868         function pageSubtitle() {
 869                 global $wgOut;
 870
 871                 $sub = $wgOut->getSubtitle();
 872                 if ( '' == $sub ) {
 873                         global $wgExtraSubtitle;
 874                         $sub = wfMsg( 'tagline' ) . $wgExtraSubtitle;
 875                 }
 876                 $subpages = $this->subPageSubtitle();
 877                 $sub .= !empty($subpages)?"</p><p class='subpages'>$subpages":'';
 878                 $s = "<p class='subtitle'>{$sub}</p>\n";
 879                 return $s;
 880         }
 881
 882         function subPageSubtitle() {
 883                 $subpages = '';
 884                 if(!wfRunHooks('SkinSubPageSubtitle', array(&$subpages)))
 885                         return $subpages;
 886
 887                 global $wgOut, $wgTitle;
 888                 if($wgOut->isArticle() && MWNamespace::hasSubpages( $wgTitle->getNamespace() )) {
 889                         $ptext=$wgTitle->getPrefixedText();
 890                         if(preg_match('/\//',$ptext)) {
 891                                 $links = explode('/',$ptext);
 892                                 array_pop( $links );
 893                                 $c = 0;
 894                                 $growinglink = '';
 895                                 $display = '';
 896                                 foreach($links as $link) {
 897                                         $growinglink .= $link;
 898                                         $display .= $link;
 899                                         $linkObj = Title::newFromText( $growinglink );
 900                                         if( is_object( $linkObj ) && $linkObj->exists() ){
 901                                                 $getlink = $this->makeKnownLinkObj( $linkObj, htmlspecialchars( $display ) );
 902                                                 $c++;
 903                                                 if ($c>1) {
 904                                                         $subpages .= ' | ';
 905                                                 } else  {
 906                                                         $subpages .= '&lt; ';
 907                                                 }
 908                                                 $subpages .= $getlink;
 909                                                 $display = '';
 910                                         } else {
 911                                                 $display .= '/';
 912                                         }
 913                                         $growinglink .= '/';
 914                                 }
 915                         }
 916                 }
 917                 return $subpages;
 918         }
 919
 920         /**
 921          * Returns true if the IP should be shown in the header
 922          */
 923         function showIPinHeader() {
 924                 global $wgShowIPinHeader;
 925                 return $wgShowIPinHeader && session_id() != '';
 926         }
 927
 928         function nameAndLogin() {
 929                 global $wgUser, $wgTitle, $wgLang, $wgContLang;
 930
 931                 $logoutPage = $wgContLang->specialPage( 'Userlogout' );
 932
 933                 $ret = '';
 934                 if ( $wgUser->isAnon() ) {
 935                         if( $this->showIPinHeader() ) {
 936                                 $name = wfGetIP();
 937
 938                                 $talkLink = $this->link( $wgUser->getTalkPage(),
 939                                         $wgLang->getNsText( NS_TALK ) );
 940
 941                                 $ret .= "$name ($talkLink)";
 942                         } else {
 943                                 $ret .= wfMsg( 'notloggedin' );
 944                         }
 945
 946                         $returnTo = $wgTitle->getPrefixedDBkey();
 947                         $query = array();
 948                         if ( $logoutPage != $returnTo ) {
 949                                 $query['returnto'] = $returnTo;
 950                         }
 951
 952                         $loginlink = $wgUser->isAllowed( 'createaccount' )
 953                                 ? 'nav-login-createaccount'
 954                                 : 'login';
 955                         $ret .= "\n<br />" . $this->link(
 956                                 SpecialPage::getTitleFor( 'Userlogin' ),
 957                                 wfMsg( $loginlink ), array(), $query
 958                         );
 959                 } else {
 960                         $returnTo = $wgTitle->getPrefixedDBkey();
 961                         $talkLink = $this->link( $wgUser->getTalkPage(),
 962                                 $wgLang->getNsText( NS_TALK ) );
 963
 964                         $ret .= $this->link( $wgUser->getUserPage(),
 965                                 htmlspecialchars( $wgUser->getName() ) );
 966                         $ret .= " ($talkLink)<br />";
 967                         $ret .= $this->link(
 968                                 SpecialPage::getTitleFor( 'Userlogout' ), wfMsg( 'logout' ),
 969                                 array(), array( 'returnto' => $returnTo )
 970                         );
 971                         $ret .= ' | ' . $this->specialLink( 'preferences' );
 972                 }
 973                 $ret .= ' | ' . $this->link(
 974                         Title::newFromText( wfMsgForContent( 'helppage' ) ),
 975                         wfMsg( 'help' )
 976                 );
 977
 978                 return $ret;
 979         }
 980
 981         function getSearchLink() {
 982                 $searchPage = SpecialPage::getTitleFor( 'Search' );
 983                 return $searchPage->getLocalURL();
 984         }
 985
 986         function escapeSearchLink() {
 987                 return htmlspecialchars( $this->getSearchLink() );
 988         }
 989
 990         function searchForm() {
 991                 global $wgRequest;
 992                 $search = $wgRequest->getText( 'search' );
 993
 994                 $s = '<form id="searchform'.$this->searchboxes.'" name="search" class="inline" method="post" action="'
 995                   . $this->escapeSearchLink() . "\">\n"
 996                   . '<input type="text" id="searchInput'.$this->searchboxes.'" name="search" size="19" value="'
 997                   . htmlspecialchars(substr($search,0,256)) . "\" />\n"
 998                   . '<input type="submit" name="go" value="' . wfMsg ('searcharticle') . '" />&nbsp;'
 999                   . '<input type="submit" name="fulltext" value="' . wfMsg ('searchbutton') . "\" />\n</form>";
1000
1001                 // Ensure unique id's for search boxes made after the first
1002                 $this->searchboxes = $this->searchboxes == '' ? 2 : $this->searchboxes + 1;
1003
1004                 return $s;
1005         }
1006
1007         function topLinks() {
1008                 global $wgOut;
1009                 $sep = " |\n";
1010
1011                 $s = $this->mainPageLink() . $sep
1012                   . $this->specialLink( 'recentchanges' );
1013
1014                 if ( $wgOut->isArticleRelated() ) {
1015                         $s .=  $sep . $this->editThisPage()
1016                           . $sep . $this->historyLink();
1017                 }
1018                 # Many people don't like this dropdown box
1019                 #$s .= $sep . $this->specialPagesList();
1020
1021                 $s .= $this->variantLinks();
1022
1023                 $s .= $this->extensionTabLinks();
1024
1025                 return $s;
1026         }
1027
1028         /**
1029          * Compatibility for extensions adding functionality through tabs.
1030          * Eventually these old skins should be replaced with SkinTemplate-based
1031          * versions, sigh...
1032          * @return string
1033          */
1034         function extensionTabLinks() {
1035                 $tabs = array();
1036                 $s = '';
1037                 wfRunHooks( 'SkinTemplateTabs', array( $this, &$tabs ) );
1038                 foreach( $tabs as $tab ) {
1039                         $s .= ' | ' . Xml::element( 'a',
1040                                 array( 'href' => $tab['href'] ),
1041                                 $tab['text'] );
1042                 }
1043                 return $s;
1044         }
1045
1046         /**
1047          * Language/charset variant links for classic-style skins
1048          * @return string
1049          */
1050         function variantLinks() {
1051                 $s = '';
1052                 /* show links to different language variants */
1053                 global $wgDisableLangConversion, $wgContLang, $wgTitle;
1054                 $variants = $wgContLang->getVariants();
1055                 if( !$wgDisableLangConversion && sizeof( $variants ) > 1 ) {
1056                         foreach( $variants as $code ) {
1057                                 $varname = $wgContLang->getVariantname( $code );
1058                                 if( $varname == 'disable' )
1059                                         continue;
1060                                 $s .= ' | <a href="' . $wgTitle->escapeLocalUrl( 'variant=' . $code ) . '">' . htmlspecialchars( $varname ) . '</a>';
1061                         }
1062                 }
1063                 return $s;
1064         }
1065
1066         function bottomLinks() {
1067                 global $wgOut, $wgUser, $wgTitle, $wgUseTrackbacks;
1068                 $sep = " |\n";
1069
1070                 $s = '';
1071                 if ( $wgOut->isArticleRelated() ) {
1072                         $s .= '<strong>' . $this->editThisPage() . '</strong>';
1073                         if ( $wgUser->isLoggedIn() ) {
1074                                 $s .= $sep . $this->watchThisPage();
1075                         }
1076                         $s .= $sep . $this->talkLink()
1077                           . $sep . $this->historyLink()
1078                           . $sep . $this->whatLinksHere()
1079                           . $sep . $this->watchPageLinksLink();
1080
1081                         if ($wgUseTrackbacks)
1082                                 $s .= $sep . $this->trackbackLink();
1083
1084                         if ( $wgTitle->getNamespace() == NS_USER
1085                             || $wgTitle->getNamespace() == NS_USER_TALK )
1086
1087                         {
1088                                 $id=User::idFromName($wgTitle->getText());
1089                                 $ip=User::isIP($wgTitle->getText());
1090
1091                                 if($id || $ip) { # both anons and non-anons have contri list
1092                                         $s .= $sep . $this->userContribsLink();
1093                                 }
1094                                 if( $this->showEmailUser( $id ) ) {
1095                                         $s .= $sep . $this->emailUserLink();
1096                                 }
1097                         }
1098                         if ( $wgTitle->getArticleId() ) {
1099                                 $s .= "\n<br />";
1100                                 if($wgUser->isAllowed('delete')) { $s .= $this->deleteThisPage(); }
1101                                 if($wgUser->isAllowed('protect')) { $s .= $sep . $this->protectThisPage(); }
1102                                 if($wgUser->isAllowed('move')) { $s .= $sep . $this->moveThisPage(); }
1103                         }
1104                         $s .= "<br />\n" . $this->otherLanguages();
1105                 }
1106                 return $s;
1107         }
1108
1109         function pageStats() {
1110                 global $wgOut, $wgLang, $wgArticle, $wgRequest, $wgUser;
1111                 global $wgDisableCounters, $wgMaxCredits, $wgShowCreditsIfMax, $wgTitle, $wgPageShowWatchingUsers;
1112
1113                 $oldid = $wgRequest->getVal( 'oldid' );
1114                 $diff = $wgRequest->getVal( 'diff' );
1115                 if ( ! $wgOut->isArticle() ) { return ''; }
1116                 if ( isset( $oldid ) || isset( $diff ) ) { return ''; }
1117                 if ( 0 == $wgArticle->getID() ) { return ''; }
1118
1119                 $s = '';
1120                 if ( !$wgDisableCounters ) {
1121                         $count = $wgLang->formatNum( $wgArticle->getCount() );
1122                         if ( $count ) {
1123                                 $s = wfMsgExt( 'viewcount', array( 'parseinline' ), $count );
1124                         }
1125                 }
1126
1127                 if (isset($wgMaxCredits) && $wgMaxCredits != 0) {
1128                     require_once('Credits.php');
1129                     $s .= ' ' . getCredits($wgArticle, $wgMaxCredits, $wgShowCreditsIfMax);
1130                 } else {
1131                     $s .= $this->lastModified();
1132                 }
1133
1134                 if ($wgPageShowWatchingUsers && $wgUser->getOption( 'shownumberswatching' )) {
1135                         $dbr = wfGetDB( DB_SLAVE );
1136                         $watchlist = $dbr->tableName( 'watchlist' );
1137                         $sql = "SELECT COUNT(*) AS n FROM $watchlist
1138                                 WHERE wl_title='" . $dbr->strencode($wgTitle->getDBkey()) .
1139                                 "' AND  wl_namespace=" . $wgTitle->getNamespace() ;
1140                         $res = $dbr->query( $sql, 'Skin::pageStats');
1141                         $x = $dbr->fetchObject( $res );
1142
1143                         $s .= ' ' . wfMsgExt( 'number_of_watching_users_pageview',
1144                                 array( 'parseinline' ), $wgLang->formatNum($x->n)
1145                         );
1146                 }
1147
1148                 return $s . ' ' .  $this->getCopyright();
1149         }
1150
1151         function getCopyright( $type = 'detect' ) {
1152                 global $wgRightsPage, $wgRightsUrl, $wgRightsText, $wgRequest;
1153
1154                 if ( $type == 'detect' ) {
1155                         $oldid = $wgRequest->getVal( 'oldid' );
1156                         $diff = $wgRequest->getVal( 'diff' );
1157
1158                         if ( !is_null( $oldid ) && is_null( $diff ) && wfMsgForContent( 'history_copyright' ) !== '-' ) {
1159                                 $type = 'history';
1160                         } else {
1161                                 $type = 'normal';
1162                         }
1163                 }
1164
1165                 if ( $type == 'history' ) {
1166                         $msg = 'history_copyright';
1167                 } else {
1168                         $msg = 'copyright';
1169                 }
1170
1171                 $out = '';
1172                 if( $wgRightsPage ) {
1173                         $link = $this->makeKnownLink( $wgRightsPage, $wgRightsText );
1174                 } elseif( $wgRightsUrl ) {
1175                         $link = $this->makeExternalLink( $wgRightsUrl, $wgRightsText );
1176                 } else {
1177                         # Give up now
1178                         return $out;
1179                 }
1180                 $out .= wfMsgForContent( $msg, $link );
1181                 return $out;
1182         }
1183
1184         function getCopyrightIcon() {
1185                 global $wgRightsUrl, $wgRightsText, $wgRightsIcon, $wgCopyrightIcon;
1186                 $out = '';
1187                 if ( isset( $wgCopyrightIcon ) && $wgCopyrightIcon ) {
1188                         $out = $wgCopyrightIcon;
1189                 } else if ( $wgRightsIcon ) {
1190                         $icon = htmlspecialchars( $wgRightsIcon );
1191                         if ( $wgRightsUrl ) {
1192                                 $url = htmlspecialchars( $wgRightsUrl );
1193                                 $out .= '<a href="'.$url.'">';
1194                         }
1195                         $text = htmlspecialchars( $wgRightsText );
1196                         $out .= "<img src=\"$icon\" alt='$text' />";
1197                         if ( $wgRightsUrl ) {
1198                                 $out .= '</a>';
1199                         }
1200                 }
1201                 return $out;
1202         }
1203
1204         function getPoweredBy() {
1205                 global $wgStylePath;
1206                 $url = htmlspecialchars( "$wgStylePath/common/images/poweredby_mediawiki_88x31.png" );
1207                 $img = '<a href="http://www.mediawiki.org/"><img src="'.$url.'" alt="Powered by MediaWiki" /></a>';
1208                 return $img;
1209         }
1210
1211         function lastModified() {
1212                 global $wgLang, $wgArticle;
1213                 if( $this->mRevisionId ) {
1214                         $timestamp = Revision::getTimestampFromId( $this->mRevisionId, $wgArticle->getId() );
1215                 } else {
1216                         $timestamp = $wgArticle->getTimestamp();
1217                 }
1218                 if ( $timestamp ) {
1219                         $d = $wgLang->date( $timestamp, true );
1220                         $t = $wgLang->time( $timestamp, true );
1221                         $s = ' ' . wfMsg( 'lastmodifiedat', $d, $t );
1222                 } else {
1223                         $s = '';
1224                 }
1225                 if ( wfGetLB()->getLaggedSlaveMode() ) {
1226                         $s .= ' <strong>' . wfMsg( 'laggedslavemode' ) . '</strong>';
1227                 }
1228                 return $s;
1229         }
1230
1231         function logoText( $align = '' ) {
1232                 if ( '' != $align ) { $a = " align='{$align}'"; }
1233                 else { $a = ''; }
1234
1235                 $mp = wfMsg( 'mainpage' );
1236                 $mptitle = Title::newMainPage();
1237                 $url = ( is_object($mptitle) ? $mptitle->escapeLocalURL() : '' );
1238
1239                 $logourl = $this->getLogo();
1240                 $s = "<a href='{$url}'><img{$a} src='{$logourl}' alt='[{$mp}]' /></a>";
1241                 return $s;
1242         }
1243
1244         /**
1245          * show a drop-down box of special pages
1246          */
1247         function specialPagesList() {
1248                 global $wgUser, $wgContLang, $wgServer, $wgRedirectScript;
1249                 $pages = array_merge( SpecialPage::getRegularPages(), SpecialPage::getRestrictedPages() );
1250                 foreach ( $pages as $name => $page ) {
1251                         $pages[$name] = $page->getDescription();
1252                 }
1253
1254                 $go = wfMsg( 'go' );
1255                 $sp = wfMsg( 'specialpages' );
1256                 $spp = $wgContLang->specialPage( 'Specialpages' );
1257
1258                 $s = '<form id="specialpages" method="get" class="inline" ' .
1259                   'action="' . htmlspecialchars( "{$wgServer}{$wgRedirectScript}" ) . "\">\n";
1260                 $s .= "<select name=\"wpDropdown\">\n";
1261                 $s .= "<option value=\"{$spp}\">{$sp}</option>\n";
1262
1263
1264                 foreach ( $pages as $name => $desc ) {
1265                         $p = $wgContLang->specialPage( $name );
1266                         $s .= "<option value=\"{$p}\">{$desc}</option>\n";
1267                 }
1268                 $s .= "</select>\n";
1269                 $s .= "<input type='submit' value=\"{$go}\" name='redirect' />\n";
1270                 $s .= "</form>\n";
1271                 return $s;
1272         }
1273
1274         function mainPageLink() {
1275                 $s = $this->makeKnownLinkObj( Title::newMainPage(), wfMsg( 'mainpage' ) );
1276                 return $s;
1277         }
1278
1279         function copyrightLink() {
1280                 $s = $this->makeKnownLink( wfMsgForContent( 'copyrightpage' ),
1281                   wfMsg( 'copyrightpagename' ) );
1282                 return $s;
1283         }
1284
1285         private function footerLink ( $desc, $page ) {
1286                 // if the link description has been set to "-" in the default language,
1287                 if ( wfMsgForContent( $desc )  == '-') {
1288                         // then it is disabled, for all languages.
1289                         return '';
1290                 } else {
1291                         // Otherwise, we display the link for the user, described in their
1292                         // language (which may or may not be the same as the default language),
1293                         // but we make the link target be the one site-wide page.
1294                         return $this->makeKnownLink( wfMsgForContent( $page ),
1295                                 wfMsgExt( $desc, array( 'parsemag', 'escapenoentities' ) ) );
1296                 }
1297         }
1298
1299         function privacyLink() {
1300                 return $this->footerLink( 'privacy', 'privacypage' );
1301         }
1302
1303         function aboutLink() {
1304                 return $this->footerLink( 'aboutsite', 'aboutpage' );
1305         }
1306
1307         function disclaimerLink() {
1308                 return $this->footerLink( 'disclaimers', 'disclaimerpage' );
1309         }
1310
1311         function editThisPage() {
1312                 global $wgOut, $wgTitle;
1313
1314                 if ( !$wgOut->isArticleRelated() ) {
1315                         $s = wfMsg( 'protectedpage' );
1316                 } else {
1317                         if( $wgTitle->userCan( 'edit' ) && $wgTitle->exists() ) {
1318                                 $t = wfMsg( 'editthispage' );
1319                         } elseif( $wgTitle->userCan( 'create' ) && !$wgTitle->exists() ) {
1320                                 $t = wfMsg( 'create-this-page' );
1321                         } else {
1322                                 $t = wfMsg( 'viewsource' );
1323                         }
1324
1325                         $s = $this->makeKnownLinkObj( $wgTitle, $t, $this->editUrlOptions() );
1326                 }
1327                 return $s;
1328         }
1329
1330         /**
1331          * Return URL options for the 'edit page' link.
1332          * This may include an 'oldid' specifier, if the current page view is such.
1333          *
1334          * @return string
1335          * @private
1336          */
1337         function editUrlOptions() {
1338                 global $wgArticle;
1339
1340                 if( $this->mRevisionId && ! $wgArticle->isCurrent() ) {
1341                         return "action=edit&oldid=" . intval( $this->mRevisionId );
1342                 } else {
1343                         return "action=edit";
1344                 }
1345         }
1346
1347         function deleteThisPage() {
1348                 global $wgUser, $wgTitle, $wgRequest;
1349
1350                 $diff = $wgRequest->getVal( 'diff' );
1351                 if ( $wgTitle->getArticleId() && ( ! $diff ) && $wgUser->isAllowed('delete') ) {
1352                         $t = wfMsg( 'deletethispage' );
1353
1354                         $s = $this->makeKnownLinkObj( $wgTitle, $t, 'action=delete' );
1355                 } else {
1356                         $s = '';
1357                 }
1358                 return $s;
1359         }
1360
1361         function protectThisPage() {
1362                 global $wgUser, $wgTitle, $wgRequest;
1363
1364                 $diff = $wgRequest->getVal( 'diff' );
1365                 if ( $wgTitle->getArticleId() && ( ! $diff ) && $wgUser->isAllowed('protect') ) {
1366                         if ( $wgTitle->isProtected() ) {
1367                                 $t = wfMsg( 'unprotectthispage' );
1368                                 $q = 'action=unprotect';
1369                         } else {
1370                                 $t = wfMsg( 'protectthispage' );
1371                                 $q = 'action=protect';
1372                         }
1373                         $s = $this->makeKnownLinkObj( $wgTitle, $t, $q );
1374                 } else {
1375                         $s = '';
1376                 }
1377                 return $s;
1378         }
1379
1380         function watchThisPage() {
1381                 global $wgOut, $wgTitle;
1382                 ++$this->mWatchLinkNum;
1383
1384                 if ( $wgOut->isArticleRelated() ) {
1385                         if ( $wgTitle->userIsWatching() ) {
1386                                 $t = wfMsg( 'unwatchthispage' );
1387                                 $q = 'action=unwatch';
1388                                 $id = "mw-unwatch-link".$this->mWatchLinkNum;
1389                         } else {
1390                                 $t = wfMsg( 'watchthispage' );
1391                                 $q = 'action=watch';
1392                                 $id = 'mw-watch-link'.$this->mWatchLinkNum;
1393                         }
1394                         $s = $this->makeKnownLinkObj( $wgTitle, $t, $q, '', '', " id=\"$id\"" );
1395                 } else {
1396                         $s = wfMsg( 'notanarticle' );
1397                 }
1398                 return $s;
1399         }
1400
1401         function moveThisPage() {
1402                 global $wgTitle;
1403
1404                 if ( $wgTitle->userCan( 'move' ) ) {
1405                         return $this->makeKnownLinkObj( SpecialPage::getTitleFor( 'Movepage' ),
1406                           wfMsg( 'movethispage' ), 'target=' . $wgTitle->getPrefixedURL() );
1407                 } else {
1408                         // no message if page is protected - would be redundant
1409                         return '';
1410                 }
1411         }
1412
1413         function historyLink() {
1414                 global $wgTitle;
1415
1416                 return $this->makeKnownLinkObj( $wgTitle,
1417                   wfMsg( 'history' ), 'action=history' );
1418         }
1419
1420         function whatLinksHere() {
1421                 global $wgTitle;
1422
1423                 return $this->makeKnownLinkObj(
1424                         SpecialPage::getTitleFor( 'Whatlinkshere', $wgTitle->getPrefixedDBkey() ),
1425                         wfMsg( 'whatlinkshere' ) );
1426         }
1427
1428         function userContribsLink() {
1429                 global $wgTitle;
1430
1431                 return $this->makeKnownLinkObj(
1432                         SpecialPage::getTitleFor( 'Contributions', $wgTitle->getDBkey() ),
1433                         wfMsg( 'contributions' ) );
1434         }
1435
1436         function showEmailUser( $id ) {
1437                 global $wgEnableEmail, $wgEnableUserEmail, $wgUser;
1438                 return $wgEnableEmail &&
1439                        $wgEnableUserEmail &&
1440                        $wgUser->isLoggedIn() && # show only to signed in users
1441                        0 != $id; # we can only email to non-anons ..
1442 #                      '' != $id->getEmail() && # who must have an email address stored ..
1443 #                      0 != $id->getEmailauthenticationtimestamp() && # .. which is authenticated
1444 #                      1 != $wgUser->getOption('disablemail'); # and not disabled
1445         }
1446
1447         function emailUserLink() {
1448                 global $wgTitle;
1449
1450                 return $this->makeKnownLinkObj(
1451                         SpecialPage::getTitleFor( 'Emailuser', $wgTitle->getDBkey() ),
1452                         wfMsg( 'emailuser' ) );
1453         }
1454
1455         function watchPageLinksLink() {
1456                 global $wgOut, $wgTitle;
1457
1458                 if ( ! $wgOut->isArticleRelated() ) {
1459                         return '(' . wfMsg( 'notanarticle' ) . ')';
1460                 } else {
1461                         return $this->makeKnownLinkObj(
1462                                 SpecialPage::getTitleFor( 'Recentchangeslinked', $wgTitle->getPrefixedDBkey() ),
1463                                 wfMsg( 'recentchangeslinked' ) );
1464                 }
1465         }
1466
1467         function trackbackLink() {
1468                 global $wgTitle;
1469
1470                 return "<a href=\"" . $wgTitle->trackbackURL() . "\">"
1471                         . wfMsg('trackbacklink') . "</a>";
1472         }
1473
1474         function otherLanguages() {
1475                 global $wgOut, $wgContLang, $wgHideInterlanguageLinks;
1476
1477                 if ( $wgHideInterlanguageLinks ) {
1478                         return '';
1479                 }
1480
1481                 $a = $wgOut->getLanguageLinks();
1482                 if ( 0 == count( $a ) ) {
1483                         return '';
1484                 }
1485
1486                 $s = wfMsg( 'otherlanguages' ) . ': ';
1487                 $first = true;
1488                 if($wgContLang->isRTL()) $s .= '<span dir="LTR">';
1489                 foreach( $a as $l ) {
1490                         if ( ! $first ) { $s .= ' | '; }
1491                         $first = false;
1492
1493                         $nt = Title::newFromText( $l );
1494                         $url = $nt->escapeFullURL();
1495                         $text = $wgContLang->getLanguageName( $nt->getInterwiki() );
1496
1497                         if ( '' == $text ) { $text = $l; }
1498                         $style = $this->getExternalLinkAttributes( $l, $text );
1499                         $s .= "<a href=\"{$url}\"{$style}>{$text}</a>";
1500                 }
1501                 if($wgContLang->isRTL()) $s .= '</span>';
1502                 return $s;
1503         }
1504
1505         function bugReportsLink() {
1506                 $s = $this->makeKnownLink( wfMsgForContent( 'bugreportspage' ),
1507                   wfMsg( 'bugreports' ) );
1508                 return $s;
1509         }
1510
1511         function talkLink() {
1512                 global $wgTitle;
1513
1514                 if ( NS_SPECIAL == $wgTitle->getNamespace() ) {
1515                         # No discussion links for special pages
1516                         return '';
1517                 }
1518
1519                 if( $wgTitle->isTalkPage() ) {
1520                         $link = $wgTitle->getSubjectPage();
1521                         switch( $link->getNamespace() ) {
1522                                 case NS_MAIN:
1523                                         $text = wfMsg( 'articlepage' );
1524                                         break;
1525                                 case NS_USER:
1526                                         $text = wfMsg( 'userpage' );
1527                                         break;
1528                                 case NS_PROJECT:
1529                                         $text = wfMsg( 'projectpage' );
1530                                         break;
1531                                 case NS_IMAGE:
1532                                         $text = wfMsg( 'imagepage' );
1533                                         break;
1534                                 case NS_MEDIAWIKI:
1535                                         $text = wfMsg( 'mediawikipage' );
1536                                         break;
1537                                 case NS_TEMPLATE:
1538                                         $text = wfMsg( 'templatepage' );
1539                                         break;
1540                                 case NS_HELP:
1541                                         $text = wfMsg( 'viewhelppage' );
1542                                         break;
1543                                 case NS_CATEGORY:
1544                                         $text = wfMsg( 'categorypage' );
1545                                         break;
1546                                 default:
1547                                         $text = wfMsg( 'articlepage' );
1548                         }
1549                 } else {
1550                         $link = $wgTitle->getTalkPage();
1551                         $text = wfMsg( 'talkpage' );
1552                 }
1553
1554                 $s = $this->makeLinkObj( $link, $text );
1555
1556                 return $s;
1557         }
1558
1559         function commentLink() {
1560                 global $wgTitle, $wgOut;
1561
1562                 if ( $wgTitle->getNamespace() == NS_SPECIAL ) {
1563                         return '';
1564                 }
1565
1566                 # __NEWSECTIONLINK___ changes behaviour here
1567                 # If it's present, the link points to this page, otherwise
1568                 # it points to the talk page
1569                 if( $wgTitle->isTalkPage() ) {
1570                         $title = $wgTitle;
1571                 } elseif( $wgOut->showNewSectionLink() ) {
1572                         $title = $wgTitle;
1573                 } else {
1574                         $title = $wgTitle->getTalkPage();
1575                 }
1576
1577                 return $this->makeKnownLinkObj( $title, wfMsg( 'postcomment' ), 'action=edit&section=new' );
1578         }
1579
1580         /* these are used extensively in SkinTemplate, but also some other places */
1581         static function makeMainPageUrl( $urlaction = '' ) {
1582                 $title = Title::newMainPage();
1583                 self::checkTitle( $title, '' );
1584                 return $title->getLocalURL( $urlaction );
1585         }
1586
1587         static function makeSpecialUrl( $name, $urlaction = '' ) {
1588                 $title = SpecialPage::getTitleFor( $name );
1589                 return $title->getLocalURL( $urlaction );
1590         }
1591
1592         static function makeSpecialUrlSubpage( $name, $subpage, $urlaction = '' ) {
1593                 $title = SpecialPage::getSafeTitleFor( $name, $subpage );
1594                 return $title->getLocalURL( $urlaction );
1595         }
1596
1597         static function makeI18nUrl( $name, $urlaction = '' ) {
1598                 $title = Title::newFromText( wfMsgForContent( $name ) );
1599                 self::checkTitle( $title, $name );
1600                 return $title->getLocalURL( $urlaction );
1601         }
1602
1603         static function makeUrl( $name, $urlaction = '' ) {
1604                 $title = Title::newFromText( $name );
1605                 self::checkTitle( $title, $name );
1606                 return $title->getLocalURL( $urlaction );
1607         }
1608
1609         # If url string starts with http, consider as external URL, else
1610         # internal
1611         static function makeInternalOrExternalUrl( $name ) {
1612                 if ( preg_match( '/^(?:' . wfUrlProtocols() . ')/', $name ) ) {
1613                         return $name;
1614                 } else {
1615                         return self::makeUrl( $name );
1616                 }
1617         }
1618
1619         # this can be passed the NS number as defined in Language.php
1620         static function makeNSUrl( $name, $urlaction = '', $namespace = NS_MAIN ) {
1621                 $title = Title::makeTitleSafe( $namespace, $name );
1622                 self::checkTitle( $title, $name );
1623                 return $title->getLocalURL( $urlaction );
1624         }
1625
1626         /* these return an array with the 'href' and boolean 'exists' */
1627         static function makeUrlDetails( $name, $urlaction = '' ) {
1628                 $title = Title::newFromText( $name );
1629                 self::checkTitle( $title, $name );
1630                 return array(
1631                         'href' => $title->getLocalURL( $urlaction ),
1632                         'exists' => $title->getArticleID() != 0 ? true : false
1633                 );
1634         }
1635
1636         /**
1637          * Make URL details where the article exists (or at least it's convenient to think so)
1638          */
1639         static function makeKnownUrlDetails( $name, $urlaction = '' ) {
1640                 $title = Title::newFromText( $name );
1641                 self::checkTitle( $title, $name );
1642                 return array(
1643                         'href' => $title->getLocalURL( $urlaction ),
1644                         'exists' => true
1645                 );
1646         }
1647
1648         # make sure we have some title to operate on
1649         static function checkTitle( &$title, $name ) {
1650                 if( !is_object( $title ) ) {
1651                         $title = Title::newFromText( $name );
1652                         if( !is_object( $title ) ) {
1653                                 $title = Title::newFromText( '--error: link target missing--' );
1654                         }
1655                 }
1656         }
1657
1658         /**
1659          * Build an array that represents the sidebar(s), the navigation bar among them
1660          *
1661          * @return array
1662          */
1663         function buildSidebar() {
1664                 global $parserMemc, $wgEnableSidebarCache, $wgSidebarCacheExpiry;
1665                 global $wgLang;
1666                 wfProfileIn( __METHOD__ );
1667
1668                 $key = wfMemcKey( 'sidebar', $wgLang->getCode() );
1669
1670                 if ( $wgEnableSidebarCache ) {
1671                         $cachedsidebar = $parserMemc->get( $key );
1672                         if ( $cachedsidebar ) {
1673                                 wfProfileOut( __METHOD__ );
1674                                 return $cachedsidebar;
1675                         }
1676                 }
1677
1678                 $bar = array();
1679                 $lines = explode( "\n", wfMsgForContent( 'sidebar' ) );
1680                 $heading = '';
1681                 foreach ($lines as $line) {
1682                         if (strpos($line, '*') !== 0)
1683                                 continue;
1684                         if (strpos($line, '**') !== 0) {
1685                                 $line = trim($line, '* ');
1686                                 $heading = $line;
1687                                 if( !array_key_exists($heading, $bar) ) $bar[$heading] = array();
1688                         } else {
1689                                 if (strpos($line, '|') !== false) { // sanity check
1690                                         $line = array_map('trim', explode( '|' , trim($line, '* '), 2 ) );
1691                                         $link = wfMsgForContent( $line[0] );
1692                                         if ($link == '-')
1693                                                 continue;
1694                                         if (wfEmptyMsg($line[1], $text = wfMsg($line[1])))
1695                                                 $text = $line[1];
1696                                         if (wfEmptyMsg($line[0], $link))
1697                                                 $link = $line[0];
1698
1699                                         if ( preg_match( '/^(?:' . wfUrlProtocols() . ')/', $link ) ) {
1700                                                 $href = $link;
1701                                         } else {
1702                                                 $title = Title::newFromText( $link );
1703                                                 if ( $title ) {
1704                                                         $title = $title->fixSpecialName();
1705                                                         $href = $title->getLocalURL();
1706                                                 } else {
1707                                                         $href = 'INVALID-TITLE';
1708                                                 }
1709                                         }
1710
1711                                         $bar[$heading][] = array(
1712                                                 'text' => $text,
1713                                                 'href' => $href,
1714                                                 'id' => 'n-' . strtr($line[1], ' ', '-'),
1715                                                 'active' => false
1716                                         );
1717                                 } else { continue; }
1718                         }
1719                 }
1720                 wfRunHooks('SkinBuildSidebar', array($this, &$bar));
1721                 if ( $wgEnableSidebarCache ) $parserMemc->set( $key, $bar, $wgSidebarCacheExpiry );
1722                 wfProfileOut( __METHOD__ );
1723                 return $bar;
1724         }
1725 }