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, $wgScriptPath, $wgScriptExtension;
 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                 $out->addLink( array(
 174                         'rel' => 'search',
 175                         'type' => 'application/opensearchdescription+xml',
 176                         'href' => "$wgScriptPath/opensearch_desc{$wgScriptExtension}",
 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                 return self::makeVariablesScript( $vars );
 366         }
 367
 368         function getHeadScripts( $allowUserJs ) {
 369                 global $wgStylePath, $wgUser, $wgJsMimeType, $wgStyleVersion;
 370
 371                 $r = self::makeGlobalVariablesScript( array( 'skinname' => $this->getSkinName() ) );
 372
 373                 $r .= "<script type=\"{$wgJsMimeType}\" src=\"{$wgStylePath}/common/wikibits.js?$wgStyleVersion\"></script>\n";
 374                 global $wgUseSiteJs;
 375                 if ($wgUseSiteJs) {
 376                         $jsCache = $wgUser->isLoggedIn() ? '&smaxage=0' : '';
 377                         $r .= "<script type=\"$wgJsMimeType\" src=\"".
 378                                 htmlspecialchars(self::makeUrl('-',
 379                                         "action=raw$jsCache&gen=js&useskin=" .
 380                                         urlencode( $this->getSkinName() ) ) ) .
 381                                 "\"><!-- site js --></script>\n";
 382                 }
 383                 if( $allowUserJs && $wgUser->isLoggedIn() ) {
 384                         $userpage = $wgUser->getUserPage();
 385                         $userjs = htmlspecialchars( self::makeUrl(
 386                                 $userpage->getPrefixedText().'/'.$this->getSkinName().'.js',
 387                                 'action=raw&ctype='.$wgJsMimeType));
 388                         $r .= '<script type="'.$wgJsMimeType.'" src="'.$userjs."\"></script>\n";
 389                 }
 390                 return $r;
 391         }
 392
 393         /**
 394          * To make it harder for someone to slip a user a fake
 395          * user-JavaScript or user-CSS preview, a random token
 396          * is associated with the login session. If it's not
 397          * passed back with the preview request, we won't render
 398          * the code.
 399          *
 400          * @param string $action
 401          * @return bool
 402          * @private
 403          */
 404         function userCanPreview( $action ) {
 405                 global $wgTitle, $wgRequest, $wgUser;
 406
 407                 if( $action != 'submit' )
 408                         return false;
 409                 if( !$wgRequest->wasPosted() )
 410                         return false;
 411                 if( !$wgTitle->userCanEditCssJsSubpage() )
 412                         return false;
 413                 return $wgUser->matchEditToken(
 414                         $wgRequest->getVal( 'wpEditToken' ) );
 415         }
 416
 417         # get the user/site-specific stylesheet, SkinTemplate loads via RawPage.php (settings are cached that way)
 418         function getUserStylesheet() {
 419                 global $wgStylePath, $wgRequest, $wgContLang, $wgSquidMaxage, $wgStyleVersion;
 420                 $sheet = $this->getStylesheet();
 421                 $s = "@import \"$wgStylePath/common/shared.css?$wgStyleVersion\";\n";
 422                 $s .= "@import \"$wgStylePath/common/oldshared.css?$wgStyleVersion\";\n";
 423                 $s .= "@import \"$wgStylePath/$sheet?$wgStyleVersion\";\n";
 424                 if($wgContLang->isRTL()) $s .= "@import \"$wgStylePath/common/common_rtl.css?$wgStyleVersion\";\n";
 425
 426                 $query = "usemsgcache=yes&action=raw&ctype=text/css&smaxage=$wgSquidMaxage";
 427                 $s .= '@import "' . self::makeNSUrl( 'Common.css', $query, NS_MEDIAWIKI ) . "\";\n" .
 428                         '@import "' . self::makeNSUrl( ucfirst( $this->getSkinName() . '.css' ), $query, NS_MEDIAWIKI ) . "\";\n";
 429
 430                 $s .= $this->doGetUserStyles();
 431                 return $s."\n";
 432         }
 433
 434         /**
 435          * This returns MediaWiki:Common.js, and derived classes may add other JS.
 436          * Despite its name, it does *not* return any custom user JS from user
 437          * subpages.  The returned script is sitewide and publicly cacheable and
 438          * therefore must not include anything that varies according to user,
 439          * interface language, etc. (although it may vary by skin).  See
 440          * makeGlobalVariablesScript for things that can vary per page view and are
 441          * not cacheable.
 442          *
 443          * @return string Raw JavaScript to be returned
 444          */
 445         public function getUserJs() {
 446                 wfProfileIn( __METHOD__ );
 447
 448                 global $wgStylePath;
 449                 $s = "/* generated javascript */\n";
 450                 $s .= "var skin = '" . Xml::escapeJsString( $this->getSkinName() ) . "';\n";
 451                 $s .= "var stylepath = '" . Xml::escapeJsString( $wgStylePath ) . "';";
 452                 $s .= "\n\n/* MediaWiki:Common.js */\n";
 453                 $commonJs = wfMsgForContent('common.js');
 454                 if ( !wfEmptyMsg ( 'common.js', $commonJs ) ) {
 455                         $s .= $commonJs;
 456                 }
 457                 wfProfileOut( __METHOD__ );
 458                 return $s;
 459         }
 460
 461         /**
 462          * Return html code that include User stylesheets
 463          */
 464         function getUserStyles() {
 465                 $s = "<style type='text/css'>\n";
 466                 $s .= "/*/*/ /*<![CDATA[*/\n"; # <-- Hide the styles from Netscape 4 without hiding them from IE/Mac
 467                 $s .= $this->getUserStylesheet();
 468                 $s .= "/*]]>*/ /* */\n";
 469                 $s .= "</style>\n";
 470                 return $s;
 471         }
 472
 473         /**
 474          * Some styles that are set by user through the user settings interface.
 475          */
 476         function doGetUserStyles() {
 477                 global $wgUser, $wgUser, $wgRequest, $wgTitle, $wgAllowUserCss;
 478
 479                 $s = '';
 480
 481                 if( $wgAllowUserCss && $wgUser->isLoggedIn() ) { # logged in
 482                         if($wgTitle->isCssSubpage() && $this->userCanPreview( $wgRequest->getText( 'action' ) ) ) {
 483                                 $s .= $wgRequest->getText('wpTextbox1');
 484                         } else {
 485                                 $userpage = $wgUser->getUserPage();
 486                                 $s.= '@import "'.self::makeUrl(
 487                                         $userpage->getPrefixedText().'/'.$this->getSkinName().'.css',
 488                                         'action=raw&ctype=text/css').'";'."\n";
 489                         }
 490                 }
 491
 492                 return $s . $this->reallyDoGetUserStyles();
 493         }
 494
 495         function reallyDoGetUserStyles() {
 496                 global $wgUser;
 497                 $s = '';
 498                 if (($undopt = $wgUser->getOption("underline")) < 2) {
 499                         $underline = $undopt ? 'underline' : 'none';
 500                         $s .= "a { text-decoration: $underline; }\n";
 501                 }
 502                 if( $wgUser->getOption( 'highlightbroken' ) ) {
 503                         $s .= "a.new, #quickbar a.new { color: #CC2200; }\n";
 504                 } else {
 505                         $s .= <<<END
 506 a.new, #quickbar a.new,
 507 a.stub, #quickbar a.stub {
 508         color: inherit;
 509 }
 510 a.new:after, #quickbar a.new:after {
 511         content: "?";
 512         color: #CC2200;
 513 }
 514 a.stub:after, #quickbar a.stub:after {
 515         content: "!";
 516         color: #772233;
 517 }
 518 END;
 519                 }
 520                 if( $wgUser->getOption( 'justify' ) ) {
 521                         $s .= "#article, #bodyContent, #mw_content { text-align: justify; }\n";
 522                 }
 523                 if( !$wgUser->getOption( 'showtoc' ) ) {
 524                         $s .= "#toc { display: none; }\n";
 525                 }
 526                 if( !$wgUser->getOption( 'editsection' ) ) {
 527                         $s .= ".editsection { display: none; }\n";
 528                 }
 529                 return $s;
 530         }
 531
 532         function getBodyOptions() {
 533                 global $wgUser, $wgTitle, $wgOut, $wgRequest, $wgContLang;
 534
 535                 extract( $wgRequest->getValues( 'oldid', 'redirect', 'diff' ) );
 536
 537                 if ( 0 != $wgTitle->getNamespace() ) {
 538                         $a = array( 'bgcolor' => '#ffffec' );
 539                 }
 540                 else $a = array( 'bgcolor' => '#FFFFFF' );
 541                 if($wgOut->isArticle() && $wgUser->getOption('editondblclick') &&
 542                   $wgTitle->userCan( 'edit' ) ) {
 543                         $s = $wgTitle->getFullURL( $this->editUrlOptions() );
 544                         $s = 'document.location = "' .wfEscapeJSString( $s ) .'";';
 545                         $a += array ('ondblclick' => $s);
 546
 547                 }
 548                 $a['onload'] = $wgOut->getOnloadHandler();
 549                 $a['class'] =
 550                         'mediawiki ns-'.$wgTitle->getNamespace().
 551                         ' '.($wgContLang->isRTL() ? "rtl" : "ltr").
 552                         ' '.Sanitizer::escapeClass( 'page-'.$wgTitle->getPrefixedText() );
 553                 return $a;
 554         }
 555
 556         /**
 557          * URL to the logo
 558          */
 559         function getLogo() {
 560                 global $wgLogo;
 561                 return $wgLogo;
 562         }
 563
 564         /**
 565          * This will be called immediately after the <body> tag.  Split into
 566          * two functions to make it easier to subclass.
 567          */
 568         function beforeContent() {
 569                 return $this->doBeforeContent();
 570         }
 571
 572         function doBeforeContent() {
 573                 global $wgContLang;
 574                 $fname = 'Skin::doBeforeContent';
 575                 wfProfileIn( $fname );
 576
 577                 $s = '';
 578                 $qb = $this->qbSetting();
 579
 580                 if( $langlinks = $this->otherLanguages() ) {
 581                         $rows = 2;
 582                         $borderhack = '';
 583                 } else {
 584                         $rows = 1;
 585                         $langlinks = false;
 586                         $borderhack = 'class="top"';
 587                 }
 588
 589                 $s .= "\n<div id='content'>\n<div id='topbar'>\n" .
 590                   "<table border='0' cellspacing='0' width='98%'>\n<tr>\n";
 591
 592                 $shove = ($qb != 0);
 593                 $left = ($qb == 1 || $qb == 3);
 594                 if($wgContLang->isRTL()) $left = !$left;
 595
 596                 if ( !$shove ) {
 597                         $s .= "<td class='top' align='left' valign='top' rowspan='{$rows}'>\n" .
 598                           $this->logoText() . '</td>';
 599                 } elseif( $left ) {
 600                         $s .= $this->getQuickbarCompensator( $rows );
 601                 }
 602                 $l = $wgContLang->isRTL() ? 'right' : 'left';
 603                 $s .= "<td {$borderhack} align='$l' valign='top'>\n";
 604
 605                 $s .= $this->topLinks() ;
 606                 $s .= "<p class='subtitle'>" . $this->pageTitleLinks() . "</p>\n";
 607
 608                 $r = $wgContLang->isRTL() ? "left" : "right";
 609                 $s .= "</td>\n<td {$borderhack} valign='top' align='$r' nowrap='nowrap'>";
 610                 $s .= $this->nameAndLogin();
 611                 $s .= "\n<br />" . $this->searchForm() . "</td>";
 612
 613                 if ( $langlinks ) {
 614                         $s .= "</tr>\n<tr>\n<td class='top' colspan=\"2\">$langlinks</td>\n";
 615                 }
 616
 617                 if ( $shove && !$left ) { # Right
 618                         $s .= $this->getQuickbarCompensator( $rows );
 619                 }
 620                 $s .= "</tr>\n</table>\n</div>\n";
 621                 $s .= "\n<div id='article'>\n";
 622
 623                 $notice = wfGetSiteNotice();
 624                 if( $notice ) {
 625                         $s .= "\n<div id='siteNotice'>$notice</div>\n";
 626                 }
 627                 $s .= $this->pageTitle();
 628                 $s .= $this->pageSubtitle() ;
 629                 $s .= $this->getCategories();
 630                 wfProfileOut( $fname );
 631                 return $s;
 632         }
 633
 634
 635         function getCategoryLinks() {
 636                 global $wgOut, $wgTitle, $wgUseCategoryBrowser;
 637                 global $wgContLang, $wgUser;
 638
 639                 if( count( $wgOut->mCategoryLinks ) == 0 ) return '';
 640
 641                 # Separator
 642                 $sep = wfMsgHtml( 'catseparator' );
 643
 644                 // Use Unicode bidi embedding override characters,
 645                 // to make sure links don't smash each other up in ugly ways.
 646                 $dir = $wgContLang->isRTL() ? 'rtl' : 'ltr';
 647                 $embed = "<span dir='$dir'>";
 648                 $pop = '</span>';
 649
 650                 $allCats = $wgOut->getCategoryLinks();
 651                 $s = '';
 652                 $colon = wfMsgExt( 'colon-separator', 'escapenoentities' );
 653                 if ( !empty( $allCats['normal'] ) ) {
 654                         $t = $embed . implode ( "{$pop} {$sep} {$embed}" , $allCats['normal'] ) . $pop;
 655
 656                         $msg = wfMsgExt( 'pagecategories', array( 'parsemag', 'escapenoentities' ), count( $allCats['normal'] ) );
 657                         $s .= '<div id="mw-normal-catlinks">' .
 658                                 $this->link( Title::newFromText( wfMsgForContent('pagecategorieslink') ), $msg )
 659                                 . $colon . $t . '</div>';
 660                 }
 661
 662                 # Hidden categories
 663                 if ( isset( $allCats['hidden'] ) ) {
 664                         if ( $wgUser->getBoolOption( 'showhiddencats' ) ) {
 665                                 $class ='mw-hidden-cats-user-shown';
 666                         } elseif ( $wgTitle->getNamespace() == NS_CATEGORY ) {
 667                                 $class = 'mw-hidden-cats-ns-shown';
 668                         } else {
 669                                 $class = 'mw-hidden-cats-hidden';
 670                         }
 671                         $s .= "<div id=\"mw-hidden-catlinks\" class=\"$class\">" .
 672                                 wfMsgExt( 'hidden-categories', array( 'parsemag', 'escapenoentities' ), count( $allCats['hidden'] ) ) .
 673                                 $colon . $embed . implode( "$pop $sep $embed", $allCats['hidden'] ) . $pop .
 674                                 "</div>";
 675                 }
 676
 677                 # optional 'dmoz-like' category browser. Will be shown under the list
 678                 # of categories an article belong to
 679                 if($wgUseCategoryBrowser) {
 680                         $s .= '<br /><hr />';
 681
 682                         # get a big array of the parents tree
 683                         $parenttree = $wgTitle->getParentCategoryTree();
 684                         # Skin object passed by reference cause it can not be
 685                         # accessed under the method subfunction drawCategoryBrowser
 686                         $tempout = explode("\n", Skin::drawCategoryBrowser($parenttree, $this) );
 687                         # Clean out bogus first entry and sort them
 688                         unset($tempout[0]);
 689                         asort($tempout);
 690                         # Output one per line
 691                         $s .= implode("<br />\n", $tempout);
 692                 }
 693
 694                 return $s;
 695         }
 696
 697         /** Render the array as a serie of links.
 698          * @param $tree Array: categories tree returned by Title::getParentCategoryTree
 699          * @param &skin Object: skin passed by reference
 700          * @return String separated by &gt;, terminate with "\n"
 701          */
 702         function drawCategoryBrowser($tree, &$skin) {
 703                 $return = '';
 704                 foreach ($tree as $element => $parent) {
 705                         if (empty($parent)) {
 706                                 # element start a new list
 707                                 $return .= "\n";
 708                         } else {
 709                                 # grab the others elements
 710                                 $return .= Skin::drawCategoryBrowser($parent, $skin) . ' &gt; ';
 711                         }
 712                         # add our current element to the list
 713                         $eltitle = Title::newFromText($element);
 714                         $return .=  $skin->link( $eltitle, $eltitle->getText() ) ;
 715                 }
 716                 return $return;
 717         }
 718
 719         function getCategories() {
 720                 $catlinks=$this->getCategoryLinks();
 721
 722                 $classes = 'catlinks';
 723
 724                 if( strpos( $catlinks, '<div id="mw-normal-catlinks">' ) === false &&
 725                         strpos( $catlinks, '<div id="mw-hidden-catlinks" class="mw-hidden-cats-hidden">' ) !== false ) {
 726                         $classes .= ' catlinks-allhidden';
 727                 }
 728
 729                 if( !empty( $catlinks ) ){
 730                         return "<div id='catlinks' class='$classes'>{$catlinks}</div>";
 731                 }
 732         }
 733
 734         function getQuickbarCompensator( $rows = 1 ) {
 735                 return "<td width='152' rowspan='{$rows}'>&nbsp;</td>";
 736         }
 737
 738         /**
 739          * This gets called shortly before the \</body\> tag.
 740          * @return String HTML to be put before \</body\>
 741          */
 742         function afterContent() {
 743                 $printfooter = "<div class=\"printfooter\">\n" . $this->printFooter() . "</div>\n";
 744                 return $printfooter . $this->doAfterContent();
 745         }
 746
 747         /**
 748          * This gets called shortly before the \</body\> tag.
 749          * @return String HTML-wrapped JS code to be put before \</body\>
 750          */
 751         function bottomScripts() {
 752                 global $wgJsMimeType;
 753                 $bottomScriptText = "\n\t\t<script type=\"$wgJsMimeType\">if (window.runOnloadHook) runOnloadHook();</script>\n";
 754                 wfRunHooks( 'SkinAfterBottomScripts', array( $this, &$bottomScriptText ) );
 755                 return $bottomScriptText;
 756         }
 757
 758         /** @return string Retrievied from HTML text */
 759         function printSource() {
 760                 global $wgTitle;
 761                 $url = htmlspecialchars( $wgTitle->getFullURL() );
 762                 return wfMsg( 'retrievedfrom', '<a href="'.$url.'">'.$url.'</a>' );
 763         }
 764
 765         function printFooter() {
 766                 return "<p>" .  $this->printSource() .
 767                         "</p>\n\n<p>" . $this->pageStats() . "</p>\n";
 768         }
 769
 770         /** overloaded by derived classes */
 771         function doAfterContent() { }
 772
 773         function pageTitleLinks() {
 774                 global $wgOut, $wgTitle, $wgUser, $wgRequest;
 775
 776                 $oldid = $wgRequest->getVal( 'oldid' );
 777                 $diff = $wgRequest->getVal( 'diff' );
 778                 $action = $wgRequest->getText( 'action' );
 779
 780                 $s = $this->printableLink();
 781                 $disclaimer = $this->disclaimerLink(); # may be empty
 782                 if( $disclaimer ) {
 783                         $s .= ' | ' . $disclaimer;
 784                 }
 785                 $privacy = $this->privacyLink(); # may be empty too
 786                 if( $privacy ) {
 787                         $s .= ' | ' . $privacy;
 788                 }
 789
 790                 if ( $wgOut->isArticleRelated() ) {
 791                         if ( $wgTitle->getNamespace() == NS_IMAGE ) {
 792                                 $name = $wgTitle->getDBkey();
 793                                 $image = wfFindFile( $wgTitle );
 794                                 if( $image ) {
 795                                         $link = htmlspecialchars( $image->getURL() );
 796                                         $style = $this->getInternalLinkAttributes( $link, $name );
 797                                         $s .= " | <a href=\"{$link}\"{$style}>{$name}</a>";
 798                                 }
 799                         }
 800                 }
 801                 if ( 'history' == $action || isset( $diff ) || isset( $oldid ) ) {
 802                         $s .= ' | ' . $this->makeKnownLinkObj( $wgTitle,
 803                                         wfMsg( 'currentrev' ) );
 804                 }
 805
 806                 if ( $wgUser->getNewtalk() ) {
 807                         # do not show "You have new messages" text when we are viewing our
 808                         # own talk page
 809                         if( !$wgTitle->equals( $wgUser->getTalkPage() ) ) {
 810                                 $tl = $this->makeKnownLinkObj( $wgUser->getTalkPage(), wfMsgHtml( 'newmessageslink' ), 'redirect=no' );
 811                                 $dl = $this->makeKnownLinkObj( $wgUser->getTalkPage(), wfMsgHtml( 'newmessagesdifflink' ), 'diff=cur' );
 812                                 $s.= ' | <strong>'. wfMsg( 'youhavenewmessages', $tl, $dl ) . '</strong>';
 813                                 # disable caching
 814                                 $wgOut->setSquidMaxage(0);
 815                                 $wgOut->enableClientCache(false);
 816                         }
 817                 }
 818
 819                 $undelete = $this->getUndeleteLink();
 820                 if( !empty( $undelete ) ) {
 821                         $s .= ' | '.$undelete;
 822                 }
 823                 return $s;
 824         }
 825
 826         function getUndeleteLink() {
 827                 global $wgUser, $wgTitle, $wgContLang, $wgLang, $action;
 828                 if(     $wgUser->isAllowed( 'deletedhistory' ) &&
 829                         (($wgTitle->getArticleId() == 0) || ($action == "history")) &&
 830                         ($n = $wgTitle->isDeleted() ) )
 831                 {
 832                         if ( $wgUser->isAllowed( 'undelete' ) ) {
 833                                 $msg = 'thisisdeleted';
 834                         } else {
 835                                 $msg = 'viewdeleted';
 836                         }
 837                         return wfMsg( $msg,
 838                                 $this->makeKnownLinkObj(
 839                                         SpecialPage::getTitleFor( 'Undelete', $wgTitle->getPrefixedDBkey() ),
 840                                         wfMsgExt( 'restorelink', array( 'parsemag', 'escape' ), $wgLang->formatNum( $n ) ) ) );
 841                 }
 842                 return '';
 843         }
 844
 845         function printableLink() {
 846                 global $wgOut, $wgFeedClasses, $wgRequest;
 847
 848                 $printurl = $wgRequest->escapeAppendQuery( 'printable=yes' );
 849
 850                 $s = "<a href=\"$printurl\">" . wfMsg( 'printableversion' ) . '</a>';
 851                 if( $wgOut->isSyndicated() ) {
 852                         foreach( $wgFeedClasses as $format => $class ) {
 853                                 $feedurl = $wgRequest->escapeAppendQuery( "feed=$format" );
 854                                 $s .= " | <a href=\"$feedurl\">{$format}</a>";
 855                         }
 856                 }
 857                 return $s;
 858         }
 859
 860         function pageTitle() {
 861                 global $wgOut;
 862                 $s = '<h1 class="pagetitle">' . htmlspecialchars( $wgOut->getPageTitle() ) . '</h1>';
 863                 return $s;
 864         }
 865
 866         function pageSubtitle() {
 867                 global $wgOut;
 868
 869                 $sub = $wgOut->getSubtitle();
 870                 if ( '' == $sub ) {
 871                         global $wgExtraSubtitle;
 872                         $sub = wfMsg( 'tagline' ) . $wgExtraSubtitle;
 873                 }
 874                 $subpages = $this->subPageSubtitle();
 875                 $sub .= !empty($subpages)?"</p><p class='subpages'>$subpages":'';
 876                 $s = "<p class='subtitle'>{$sub}</p>\n";
 877                 return $s;
 878         }
 879
 880         function subPageSubtitle() {
 881                 $subpages = '';
 882                 if(!wfRunHooks('SkinSubPageSubtitle', array(&$subpages)))
 883                         return $subpages;
 884
 885                 global $wgOut, $wgTitle;
 886                 if($wgOut->isArticle() && MWNamespace::hasSubpages( $wgTitle->getNamespace() )) {
 887                         $ptext=$wgTitle->getPrefixedText();
 888                         if(preg_match('/\//',$ptext)) {
 889                                 $links = explode('/',$ptext);
 890                                 array_pop( $links );
 891                                 $c = 0;
 892                                 $growinglink = '';
 893                                 $display = '';
 894                                 foreach($links as $link) {
 895                                         $growinglink .= $link;
 896                                         $display .= $link;
 897                                         $linkObj = Title::newFromText( $growinglink );
 898                                         if( is_object( $linkObj ) && $linkObj->exists() ){
 899                                                 $getlink = $this->makeKnownLinkObj( $linkObj, htmlspecialchars( $display ) );
 900                                                 $c++;
 901                                                 if ($c>1) {
 902                                                         $subpages .= ' | ';
 903                                                 } else  {
 904                                                         $subpages .= '&lt; ';
 905                                                 }
 906                                                 $subpages .= $getlink;
 907                                                 $display = '';
 908                                         } else {
 909                                                 $display .= '/';
 910                                         }
 911                                         $growinglink .= '/';
 912                                 }
 913                         }
 914                 }
 915                 return $subpages;
 916         }
 917
 918         /**
 919          * Returns true if the IP should be shown in the header
 920          */
 921         function showIPinHeader() {
 922                 global $wgShowIPinHeader;
 923                 return $wgShowIPinHeader && session_id() != '';
 924         }
 925
 926         function nameAndLogin() {
 927                 global $wgUser, $wgTitle, $wgLang, $wgContLang;
 928
 929                 $logoutPage = $wgContLang->specialPage( 'Userlogout' );
 930
 931                 $ret = '';
 932                 if ( $wgUser->isAnon() ) {
 933                         if( $this->showIPinHeader() ) {
 934                                 $name = wfGetIP();
 935
 936                                 $talkLink = $this->link( $wgUser->getTalkPage(),
 937                                         $wgLang->getNsText( NS_TALK ) );
 938
 939                                 $ret .= "$name ($talkLink)";
 940                         } else {
 941                                 $ret .= wfMsg( 'notloggedin' );
 942                         }
 943
 944                         $returnTo = $wgTitle->getPrefixedDBkey();
 945                         $query = array();
 946                         if ( $logoutPage != $returnTo ) {
 947                                 $query['returnto'] = $returnTo;
 948                         }
 949
 950                         $loginlink = $wgUser->isAllowed( 'createaccount' )
 951                                 ? 'nav-login-createaccount'
 952                                 : 'login';
 953                         $ret .= "\n<br />" . $this->link(
 954                                 SpecialPage::getTitleFor( 'Userlogin' ),
 955                                 wfMsg( $loginlink ), array(), $query
 956                         );
 957                 } else {
 958                         $returnTo = $wgTitle->getPrefixedDBkey();
 959                         $talkLink = $this->link( $wgUser->getTalkPage(),
 960                                 $wgLang->getNsText( NS_TALK ) );
 961
 962                         $ret .= $this->link( $wgUser->getUserPage(),
 963                                 htmlspecialchars( $wgUser->getName() ) );
 964                         $ret .= " ($talkLink)<br />";
 965                         $ret .= $this->link(
 966                                 SpecialPage::getTitleFor( 'Userlogout' ), wfMsg( 'logout' ),
 967                                 array(), array( 'returnto' => $returnTo )
 968                         );
 969                         $ret .= ' | ' . $this->specialLink( 'preferences' );
 970                 }
 971                 $ret .= ' | ' . $this->link(
 972                         Title::newFromText( wfMsgForContent( 'helppage' ) ),
 973                         wfMsg( 'help' )
 974                 );
 975
 976                 return $ret;
 977         }
 978
 979         function getSearchLink() {
 980                 $searchPage = SpecialPage::getTitleFor( 'Search' );
 981                 return $searchPage->getLocalURL();
 982         }
 983
 984         function escapeSearchLink() {
 985                 return htmlspecialchars( $this->getSearchLink() );
 986         }
 987
 988         function searchForm() {
 989                 global $wgRequest;
 990                 $search = $wgRequest->getText( 'search' );
 991
 992                 $s = '<form id="searchform'.$this->searchboxes.'" name="search" class="inline" method="post" action="'
 993                   . $this->escapeSearchLink() . "\">\n"
 994                   . '<input type="text" id="searchInput'.$this->searchboxes.'" name="search" size="19" value="'
 995                   . htmlspecialchars(substr($search,0,256)) . "\" />\n"
 996                   . '<input type="submit" name="go" value="' . wfMsg ('searcharticle') . '" />&nbsp;'
 997                   . '<input type="submit" name="fulltext" value="' . wfMsg ('searchbutton') . "\" />\n</form>";
 998
 999                 // Ensure unique id's for search boxes made after the first
1000                 $this->searchboxes = $this->searchboxes == '' ? 2 : $this->searchboxes + 1;
1001
1002                 return $s;
1003         }
1004
1005         function topLinks() {
1006                 global $wgOut;
1007                 $sep = " |\n";
1008
1009                 $s = $this->mainPageLink() . $sep
1010                   . $this->specialLink( 'recentchanges' );
1011
1012                 if ( $wgOut->isArticleRelated() ) {
1013                         $s .=  $sep . $this->editThisPage()
1014                           . $sep . $this->historyLink();
1015                 }
1016                 # Many people don't like this dropdown box
1017                 #$s .= $sep . $this->specialPagesList();
1018
1019                 $s .= $this->variantLinks();
1020
1021                 $s .= $this->extensionTabLinks();
1022
1023                 return $s;
1024         }
1025
1026         /**
1027          * Compatibility for extensions adding functionality through tabs.
1028          * Eventually these old skins should be replaced with SkinTemplate-based
1029          * versions, sigh...
1030          * @return string
1031          */
1032         function extensionTabLinks() {
1033                 $tabs = array();
1034                 $s = '';
1035                 wfRunHooks( 'SkinTemplateTabs', array( $this, &$tabs ) );
1036                 foreach( $tabs as $tab ) {
1037                         $s .= ' | ' . Xml::element( 'a',
1038                                 array( 'href' => $tab['href'] ),
1039                                 $tab['text'] );
1040                 }
1041                 return $s;
1042         }
1043
1044         /**
1045          * Language/charset variant links for classic-style skins
1046          * @return string
1047          */
1048         function variantLinks() {
1049                 $s = '';
1050                 /* show links to different language variants */
1051                 global $wgDisableLangConversion, $wgContLang, $wgTitle;
1052                 $variants = $wgContLang->getVariants();
1053                 if( !$wgDisableLangConversion && sizeof( $variants ) > 1 ) {
1054                         foreach( $variants as $code ) {
1055                                 $varname = $wgContLang->getVariantname( $code );
1056                                 if( $varname == 'disable' )
1057                                         continue;
1058                                 $s .= ' | <a href="' . $wgTitle->escapeLocalUrl( 'variant=' . $code ) . '">' . htmlspecialchars( $varname ) . '</a>';
1059                         }
1060                 }
1061                 return $s;
1062         }
1063
1064         function bottomLinks() {
1065                 global $wgOut, $wgUser, $wgTitle, $wgUseTrackbacks;
1066                 $sep = " |\n";
1067
1068                 $s = '';
1069                 if ( $wgOut->isArticleRelated() ) {
1070                         $s .= '<strong>' . $this->editThisPage() . '</strong>';
1071                         if ( $wgUser->isLoggedIn() ) {
1072                                 $s .= $sep . $this->watchThisPage();
1073                         }
1074                         $s .= $sep . $this->talkLink()
1075                           . $sep . $this->historyLink()
1076                           . $sep . $this->whatLinksHere()
1077                           . $sep . $this->watchPageLinksLink();
1078
1079                         if ($wgUseTrackbacks)
1080                                 $s .= $sep . $this->trackbackLink();
1081
1082                         if ( $wgTitle->getNamespace() == NS_USER
1083                             || $wgTitle->getNamespace() == NS_USER_TALK )
1084
1085                         {
1086                                 $id=User::idFromName($wgTitle->getText());
1087                                 $ip=User::isIP($wgTitle->getText());
1088
1089                                 if($id || $ip) { # both anons and non-anons have contri list
1090                                         $s .= $sep . $this->userContribsLink();
1091                                 }
1092                                 if( $this->showEmailUser( $id ) ) {
1093                                         $s .= $sep . $this->emailUserLink();
1094                                 }
1095                         }
1096                         if ( $wgTitle->getArticleId() ) {
1097                                 $s .= "\n<br />";
1098                                 if($wgUser->isAllowed('delete')) { $s .= $this->deleteThisPage(); }
1099                                 if($wgUser->isAllowed('protect')) { $s .= $sep . $this->protectThisPage(); }
1100                                 if($wgUser->isAllowed('move')) { $s .= $sep . $this->moveThisPage(); }
1101                         }
1102                         $s .= "<br />\n" . $this->otherLanguages();
1103                 }
1104                 return $s;
1105         }
1106
1107         function pageStats() {
1108                 global $wgOut, $wgLang, $wgArticle, $wgRequest, $wgUser;
1109                 global $wgDisableCounters, $wgMaxCredits, $wgShowCreditsIfMax, $wgTitle, $wgPageShowWatchingUsers;
1110
1111                 $oldid = $wgRequest->getVal( 'oldid' );
1112                 $diff = $wgRequest->getVal( 'diff' );
1113                 if ( ! $wgOut->isArticle() ) { return ''; }
1114                 if ( isset( $oldid ) || isset( $diff ) ) { return ''; }
1115                 if ( 0 == $wgArticle->getID() ) { return ''; }
1116
1117                 $s = '';
1118                 if ( !$wgDisableCounters ) {
1119                         $count = $wgLang->formatNum( $wgArticle->getCount() );
1120                         if ( $count ) {
1121                                 $s = wfMsgExt( 'viewcount', array( 'parseinline' ), $count );
1122                         }
1123                 }
1124
1125                 if (isset($wgMaxCredits) && $wgMaxCredits != 0) {
1126                     require_once('Credits.php');
1127                     $s .= ' ' . getCredits($wgArticle, $wgMaxCredits, $wgShowCreditsIfMax);
1128                 } else {
1129                     $s .= $this->lastModified();
1130                 }
1131
1132                 if ($wgPageShowWatchingUsers && $wgUser->getOption( 'shownumberswatching' )) {
1133                         $dbr = wfGetDB( DB_SLAVE );
1134                         $watchlist = $dbr->tableName( 'watchlist' );
1135                         $sql = "SELECT COUNT(*) AS n FROM $watchlist
1136                                 WHERE wl_title='" . $dbr->strencode($wgTitle->getDBkey()) .
1137                                 "' AND  wl_namespace=" . $wgTitle->getNamespace() ;
1138                         $res = $dbr->query( $sql, 'Skin::pageStats');
1139                         $x = $dbr->fetchObject( $res );
1140
1141                         $s .= ' ' . wfMsgExt( 'number_of_watching_users_pageview',
1142                                 array( 'parseinline' ), $wgLang->formatNum($x->n)
1143                         );
1144                 }
1145
1146                 return $s . ' ' .  $this->getCopyright();
1147         }
1148
1149         function getCopyright( $type = 'detect' ) {
1150                 global $wgRightsPage, $wgRightsUrl, $wgRightsText, $wgRequest;
1151
1152                 if ( $type == 'detect' ) {
1153                         $oldid = $wgRequest->getVal( 'oldid' );
1154                         $diff = $wgRequest->getVal( 'diff' );
1155
1156                         if ( !is_null( $oldid ) && is_null( $diff ) && wfMsgForContent( 'history_copyright' ) !== '-' ) {
1157                                 $type = 'history';
1158                         } else {
1159                                 $type = 'normal';
1160                         }
1161                 }
1162
1163                 if ( $type == 'history' ) {
1164                         $msg = 'history_copyright';
1165                 } else {
1166                         $msg = 'copyright';
1167                 }
1168
1169                 $out = '';
1170                 if( $wgRightsPage ) {
1171                         $link = $this->makeKnownLink( $wgRightsPage, $wgRightsText );
1172                 } elseif( $wgRightsUrl ) {
1173                         $link = $this->makeExternalLink( $wgRightsUrl, $wgRightsText );
1174                 } else {
1175                         # Give up now
1176                         return $out;
1177                 }
1178                 $out .= wfMsgForContent( $msg, $link );
1179                 return $out;
1180         }
1181
1182         function getCopyrightIcon() {
1183                 global $wgRightsUrl, $wgRightsText, $wgRightsIcon, $wgCopyrightIcon;
1184                 $out = '';
1185                 if ( isset( $wgCopyrightIcon ) && $wgCopyrightIcon ) {
1186                         $out = $wgCopyrightIcon;
1187                 } else if ( $wgRightsIcon ) {
1188                         $icon = htmlspecialchars( $wgRightsIcon );
1189                         if ( $wgRightsUrl ) {
1190                                 $url = htmlspecialchars( $wgRightsUrl );
1191                                 $out .= '<a href="'.$url.'">';
1192                         }
1193                         $text = htmlspecialchars( $wgRightsText );
1194                         $out .= "<img src=\"$icon\" alt='$text' />";
1195                         if ( $wgRightsUrl ) {
1196                                 $out .= '</a>';
1197                         }
1198                 }
1199                 return $out;
1200         }
1201
1202         function getPoweredBy() {
1203                 global $wgStylePath;
1204                 $url = htmlspecialchars( "$wgStylePath/common/images/poweredby_mediawiki_88x31.png" );
1205                 $img = '<a href="http://www.mediawiki.org/"><img src="'.$url.'" alt="Powered by MediaWiki" /></a>';
1206                 return $img;
1207         }
1208
1209         function lastModified() {
1210                 global $wgLang, $wgArticle;
1211                 if( $this->mRevisionId ) {
1212                         $timestamp = Revision::getTimestampFromId( $this->mRevisionId, $wgArticle->getId() );
1213                 } else {
1214                         $timestamp = $wgArticle->getTimestamp();
1215                 }
1216                 if ( $timestamp ) {
1217                         $d = $wgLang->date( $timestamp, true );
1218                         $t = $wgLang->time( $timestamp, true );
1219                         $s = ' ' . wfMsg( 'lastmodifiedat', $d, $t );
1220                 } else {
1221                         $s = '';
1222                 }
1223                 if ( wfGetLB()->getLaggedSlaveMode() ) {
1224                         $s .= ' <strong>' . wfMsg( 'laggedslavemode' ) . '</strong>';
1225                 }
1226                 return $s;
1227         }
1228
1229         function logoText( $align = '' ) {
1230                 if ( '' != $align ) { $a = " align='{$align}'"; }
1231                 else { $a = ''; }
1232
1233                 $mp = wfMsg( 'mainpage' );
1234                 $mptitle = Title::newMainPage();
1235                 $url = ( is_object($mptitle) ? $mptitle->escapeLocalURL() : '' );
1236
1237                 $logourl = $this->getLogo();
1238                 $s = "<a href='{$url}'><img{$a} src='{$logourl}' alt='[{$mp}]' /></a>";
1239                 return $s;
1240         }
1241
1242         /**
1243          * show a drop-down box of special pages
1244          */
1245         function specialPagesList() {
1246                 global $wgUser, $wgContLang, $wgServer, $wgRedirectScript;
1247                 $pages = array_merge( SpecialPage::getRegularPages(), SpecialPage::getRestrictedPages() );
1248                 foreach ( $pages as $name => $page ) {
1249                         $pages[$name] = $page->getDescription();
1250                 }
1251
1252                 $go = wfMsg( 'go' );
1253                 $sp = wfMsg( 'specialpages' );
1254                 $spp = $wgContLang->specialPage( 'Specialpages' );
1255
1256                 $s = '<form id="specialpages" method="get" class="inline" ' .
1257                   'action="' . htmlspecialchars( "{$wgServer}{$wgRedirectScript}" ) . "\">\n";
1258                 $s .= "<select name=\"wpDropdown\">\n";
1259                 $s .= "<option value=\"{$spp}\">{$sp}</option>\n";
1260
1261
1262                 foreach ( $pages as $name => $desc ) {
1263                         $p = $wgContLang->specialPage( $name );
1264                         $s .= "<option value=\"{$p}\">{$desc}</option>\n";
1265                 }
1266                 $s .= "</select>\n";
1267                 $s .= "<input type='submit' value=\"{$go}\" name='redirect' />\n";
1268                 $s .= "</form>\n";
1269                 return $s;
1270         }
1271
1272         function mainPageLink() {
1273                 $s = $this->makeKnownLinkObj( Title::newMainPage(), wfMsg( 'mainpage' ) );
1274                 return $s;
1275         }
1276
1277         function copyrightLink() {
1278                 $s = $this->makeKnownLink( wfMsgForContent( 'copyrightpage' ),
1279                   wfMsg( 'copyrightpagename' ) );
1280                 return $s;
1281         }
1282
1283         private function footerLink ( $desc, $page ) {
1284                 // if the link description has been set to "-" in the default language,
1285                 if ( wfMsgForContent( $desc )  == '-') {
1286                         // then it is disabled, for all languages.
1287                         return '';
1288                 } else {
1289                         // Otherwise, we display the link for the user, described in their
1290                         // language (which may or may not be the same as the default language),
1291                         // but we make the link target be the one site-wide page.
1292                         return $this->makeKnownLink( wfMsgForContent( $page ),
1293                                 wfMsgExt( $desc, array( 'parsemag', 'escapenoentities' ) ) );
1294                 }
1295         }
1296
1297         function privacyLink() {
1298                 return $this->footerLink( 'privacy', 'privacypage' );
1299         }
1300
1301         function aboutLink() {
1302                 return $this->footerLink( 'aboutsite', 'aboutpage' );
1303         }
1304
1305         function disclaimerLink() {
1306                 return $this->footerLink( 'disclaimers', 'disclaimerpage' );
1307         }
1308
1309         function editThisPage() {
1310                 global $wgOut, $wgTitle;
1311
1312                 if ( !$wgOut->isArticleRelated() ) {
1313                         $s = wfMsg( 'protectedpage' );
1314                 } else {
1315                         if( $wgTitle->userCan( 'edit' ) && $wgTitle->exists() ) {
1316                                 $t = wfMsg( 'editthispage' );
1317                         } elseif( $wgTitle->userCan( 'create' ) && !$wgTitle->exists() ) {
1318                                 $t = wfMsg( 'create-this-page' );
1319                         } else {
1320                                 $t = wfMsg( 'viewsource' );
1321                         }
1322
1323                         $s = $this->makeKnownLinkObj( $wgTitle, $t, $this->editUrlOptions() );
1324                 }
1325                 return $s;
1326         }
1327
1328         /**
1329          * Return URL options for the 'edit page' link.
1330          * This may include an 'oldid' specifier, if the current page view is such.
1331          *
1332          * @return string
1333          * @private
1334          */
1335         function editUrlOptions() {
1336                 global $wgArticle;
1337
1338                 if( $this->mRevisionId && ! $wgArticle->isCurrent() ) {
1339                         return "action=edit&oldid=" . intval( $this->mRevisionId );
1340                 } else {
1341                         return "action=edit";
1342                 }
1343         }
1344
1345         function deleteThisPage() {
1346                 global $wgUser, $wgTitle, $wgRequest;
1347
1348                 $diff = $wgRequest->getVal( 'diff' );
1349                 if ( $wgTitle->getArticleId() && ( ! $diff ) && $wgUser->isAllowed('delete') ) {
1350                         $t = wfMsg( 'deletethispage' );
1351
1352                         $s = $this->makeKnownLinkObj( $wgTitle, $t, 'action=delete' );
1353                 } else {
1354                         $s = '';
1355                 }
1356                 return $s;
1357         }
1358
1359         function protectThisPage() {
1360                 global $wgUser, $wgTitle, $wgRequest;
1361
1362                 $diff = $wgRequest->getVal( 'diff' );
1363                 if ( $wgTitle->getArticleId() && ( ! $diff ) && $wgUser->isAllowed('protect') ) {
1364                         if ( $wgTitle->isProtected() ) {
1365                                 $t = wfMsg( 'unprotectthispage' );
1366                                 $q = 'action=unprotect';
1367                         } else {
1368                                 $t = wfMsg( 'protectthispage' );
1369                                 $q = 'action=protect';
1370                         }
1371                         $s = $this->makeKnownLinkObj( $wgTitle, $t, $q );
1372                 } else {
1373                         $s = '';
1374                 }
1375                 return $s;
1376         }
1377
1378         function watchThisPage() {
1379                 global $wgOut, $wgTitle;
1380                 ++$this->mWatchLinkNum;
1381
1382                 if ( $wgOut->isArticleRelated() ) {
1383                         if ( $wgTitle->userIsWatching() ) {
1384                                 $t = wfMsg( 'unwatchthispage' );
1385                                 $q = 'action=unwatch';
1386                                 $id = "mw-unwatch-link".$this->mWatchLinkNum;
1387                         } else {
1388                                 $t = wfMsg( 'watchthispage' );
1389                                 $q = 'action=watch';
1390                                 $id = 'mw-watch-link'.$this->mWatchLinkNum;
1391                         }
1392                         $s = $this->makeKnownLinkObj( $wgTitle, $t, $q, '', '', " id=\"$id\"" );
1393                 } else {
1394                         $s = wfMsg( 'notanarticle' );
1395                 }
1396                 return $s;
1397         }
1398
1399         function moveThisPage() {
1400                 global $wgTitle;
1401
1402                 if ( $wgTitle->userCan( 'move' ) ) {
1403                         return $this->makeKnownLinkObj( SpecialPage::getTitleFor( 'Movepage' ),
1404                           wfMsg( 'movethispage' ), 'target=' . $wgTitle->getPrefixedURL() );
1405                 } else {
1406                         // no message if page is protected - would be redundant
1407                         return '';
1408                 }
1409         }
1410
1411         function historyLink() {
1412                 global $wgTitle;
1413
1414                 return $this->makeKnownLinkObj( $wgTitle,
1415                   wfMsg( 'history' ), 'action=history' );
1416         }
1417
1418         function whatLinksHere() {
1419                 global $wgTitle;
1420
1421                 return $this->makeKnownLinkObj(
1422                         SpecialPage::getTitleFor( 'Whatlinkshere', $wgTitle->getPrefixedDBkey() ),
1423                         wfMsg( 'whatlinkshere' ) );
1424         }
1425
1426         function userContribsLink() {
1427                 global $wgTitle;
1428
1429                 return $this->makeKnownLinkObj(
1430                         SpecialPage::getTitleFor( 'Contributions', $wgTitle->getDBkey() ),
1431                         wfMsg( 'contributions' ) );
1432         }
1433
1434         function showEmailUser( $id ) {
1435                 global $wgEnableEmail, $wgEnableUserEmail, $wgUser;
1436                 return $wgEnableEmail &&
1437                        $wgEnableUserEmail &&
1438                        $wgUser->isLoggedIn() && # show only to signed in users
1439                        0 != $id; # we can only email to non-anons ..
1440 #                      '' != $id->getEmail() && # who must have an email address stored ..
1441 #                      0 != $id->getEmailauthenticationtimestamp() && # .. which is authenticated
1442 #                      1 != $wgUser->getOption('disablemail'); # and not disabled
1443         }
1444
1445         function emailUserLink() {
1446                 global $wgTitle;
1447
1448                 return $this->makeKnownLinkObj(
1449                         SpecialPage::getTitleFor( 'Emailuser', $wgTitle->getDBkey() ),
1450                         wfMsg( 'emailuser' ) );
1451         }
1452
1453         function watchPageLinksLink() {
1454                 global $wgOut, $wgTitle;
1455
1456                 if ( ! $wgOut->isArticleRelated() ) {
1457                         return '(' . wfMsg( 'notanarticle' ) . ')';
1458                 } else {
1459                         return $this->makeKnownLinkObj(
1460                                 SpecialPage::getTitleFor( 'Recentchangeslinked', $wgTitle->getPrefixedDBkey() ),
1461                                 wfMsg( 'recentchangeslinked' ) );
1462                 }
1463         }
1464
1465         function trackbackLink() {
1466                 global $wgTitle;
1467
1468                 return "<a href=\"" . $wgTitle->trackbackURL() . "\">"
1469                         . wfMsg('trackbacklink') . "</a>";
1470         }
1471
1472         function otherLanguages() {
1473                 global $wgOut, $wgContLang, $wgHideInterlanguageLinks;
1474
1475                 if ( $wgHideInterlanguageLinks ) {
1476                         return '';
1477                 }
1478
1479                 $a = $wgOut->getLanguageLinks();
1480                 if ( 0 == count( $a ) ) {
1481                         return '';
1482                 }
1483
1484                 $s = wfMsg( 'otherlanguages' ) . ': ';
1485                 $first = true;
1486                 if($wgContLang->isRTL()) $s .= '<span dir="LTR">';
1487                 foreach( $a as $l ) {
1488                         if ( ! $first ) { $s .= ' | '; }
1489                         $first = false;
1490
1491                         $nt = Title::newFromText( $l );
1492                         $url = $nt->escapeFullURL();
1493                         $text = $wgContLang->getLanguageName( $nt->getInterwiki() );
1494
1495                         if ( '' == $text ) { $text = $l; }
1496                         $style = $this->getExternalLinkAttributes( $l, $text );
1497                         $s .= "<a href=\"{$url}\"{$style}>{$text}</a>";
1498                 }
1499                 if($wgContLang->isRTL()) $s .= '</span>';
1500                 return $s;
1501         }
1502
1503         function bugReportsLink() {
1504                 $s = $this->makeKnownLink( wfMsgForContent( 'bugreportspage' ),
1505                   wfMsg( 'bugreports' ) );
1506                 return $s;
1507         }
1508
1509         function talkLink() {
1510                 global $wgTitle;
1511
1512                 if ( NS_SPECIAL == $wgTitle->getNamespace() ) {
1513                         # No discussion links for special pages
1514                         return '';
1515                 }
1516
1517                 if( $wgTitle->isTalkPage() ) {
1518                         $link = $wgTitle->getSubjectPage();
1519                         switch( $link->getNamespace() ) {
1520                                 case NS_MAIN:
1521                                         $text = wfMsg( 'articlepage' );
1522                                         break;
1523                                 case NS_USER:
1524                                         $text = wfMsg( 'userpage' );
1525                                         break;
1526                                 case NS_PROJECT:
1527                                         $text = wfMsg( 'projectpage' );
1528                                         break;
1529                                 case NS_IMAGE:
1530                                         $text = wfMsg( 'imagepage' );
1531                                         break;
1532                                 case NS_MEDIAWIKI:
1533                                         $text = wfMsg( 'mediawikipage' );
1534                                         break;
1535                                 case NS_TEMPLATE:
1536                                         $text = wfMsg( 'templatepage' );
1537                                         break;
1538                                 case NS_HELP:
1539                                         $text = wfMsg( 'viewhelppage' );
1540                                         break;
1541                                 case NS_CATEGORY:
1542                                         $text = wfMsg( 'categorypage' );
1543                                         break;
1544                                 default:
1545                                         $text = wfMsg( 'articlepage' );
1546                         }
1547                 } else {
1548                         $link = $wgTitle->getTalkPage();
1549                         $text = wfMsg( 'talkpage' );
1550                 }
1551
1552                 $s = $this->makeLinkObj( $link, $text );
1553
1554                 return $s;
1555         }
1556
1557         function commentLink() {
1558                 global $wgTitle, $wgOut;
1559
1560                 if ( $wgTitle->getNamespace() == NS_SPECIAL ) {
1561                         return '';
1562                 }
1563
1564                 # __NEWSECTIONLINK___ changes behaviour here
1565                 # If it's present, the link points to this page, otherwise
1566                 # it points to the talk page
1567                 if( $wgTitle->isTalkPage() ) {
1568                         $title = $wgTitle;
1569                 } elseif( $wgOut->showNewSectionLink() ) {
1570                         $title = $wgTitle;
1571                 } else {
1572                         $title = $wgTitle->getTalkPage();
1573                 }
1574
1575                 return $this->makeKnownLinkObj( $title, wfMsg( 'postcomment' ), 'action=edit&section=new' );
1576         }
1577
1578         /* these are used extensively in SkinTemplate, but also some other places */
1579         static function makeMainPageUrl( $urlaction = '' ) {
1580                 $title = Title::newMainPage();
1581                 self::checkTitle( $title, '' );
1582                 return $title->getLocalURL( $urlaction );
1583         }
1584
1585         static function makeSpecialUrl( $name, $urlaction = '' ) {
1586                 $title = SpecialPage::getTitleFor( $name );
1587                 return $title->getLocalURL( $urlaction );
1588         }
1589
1590         static function makeSpecialUrlSubpage( $name, $subpage, $urlaction = '' ) {
1591                 $title = SpecialPage::getSafeTitleFor( $name, $subpage );
1592                 return $title->getLocalURL( $urlaction );
1593         }
1594
1595         static function makeI18nUrl( $name, $urlaction = '' ) {
1596                 $title = Title::newFromText( wfMsgForContent( $name ) );
1597                 self::checkTitle( $title, $name );
1598                 return $title->getLocalURL( $urlaction );
1599         }
1600
1601         static function makeUrl( $name, $urlaction = '' ) {
1602                 $title = Title::newFromText( $name );
1603                 self::checkTitle( $title, $name );
1604                 return $title->getLocalURL( $urlaction );
1605         }
1606
1607         # If url string starts with http, consider as external URL, else
1608         # internal
1609         static function makeInternalOrExternalUrl( $name ) {
1610                 if ( preg_match( '/^(?:' . wfUrlProtocols() . ')/', $name ) ) {
1611                         return $name;
1612                 } else {
1613                         return self::makeUrl( $name );
1614                 }
1615         }
1616
1617         # this can be passed the NS number as defined in Language.php
1618         static function makeNSUrl( $name, $urlaction = '', $namespace = NS_MAIN ) {
1619                 $title = Title::makeTitleSafe( $namespace, $name );
1620                 self::checkTitle( $title, $name );
1621                 return $title->getLocalURL( $urlaction );
1622         }
1623
1624         /* these return an array with the 'href' and boolean 'exists' */
1625         static function makeUrlDetails( $name, $urlaction = '' ) {
1626                 $title = Title::newFromText( $name );
1627                 self::checkTitle( $title, $name );
1628                 return array(
1629                         'href' => $title->getLocalURL( $urlaction ),
1630                         'exists' => $title->getArticleID() != 0 ? true : false
1631                 );
1632         }
1633
1634         /**
1635          * Make URL details where the article exists (or at least it's convenient to think so)
1636          */
1637         static function makeKnownUrlDetails( $name, $urlaction = '' ) {
1638                 $title = Title::newFromText( $name );
1639                 self::checkTitle( $title, $name );
1640                 return array(
1641                         'href' => $title->getLocalURL( $urlaction ),
1642                         'exists' => true
1643                 );
1644         }
1645
1646         # make sure we have some title to operate on
1647         static function checkTitle( &$title, $name ) {
1648                 if( !is_object( $title ) ) {
1649                         $title = Title::newFromText( $name );
1650                         if( !is_object( $title ) ) {
1651                                 $title = Title::newFromText( '--error: link target missing--' );
1652                         }
1653                 }
1654         }
1655
1656         /**
1657          * Build an array that represents the sidebar(s), the navigation bar among them
1658          *
1659          * @return array
1660          */
1661         function buildSidebar() {
1662                 global $parserMemc, $wgEnableSidebarCache, $wgSidebarCacheExpiry;
1663                 global $wgLang;
1664                 wfProfileIn( __METHOD__ );
1665
1666                 $key = wfMemcKey( 'sidebar', $wgLang->getCode() );
1667
1668                 if ( $wgEnableSidebarCache ) {
1669                         $cachedsidebar = $parserMemc->get( $key );
1670                         if ( $cachedsidebar ) {
1671                                 wfProfileOut( __METHOD__ );
1672                                 return $cachedsidebar;
1673                         }
1674                 }
1675
1676                 $bar = array();
1677                 $lines = explode( "\n", wfMsgForContent( 'sidebar' ) );
1678                 $heading = '';
1679                 foreach ($lines as $line) {
1680                         if (strpos($line, '*') !== 0)
1681                                 continue;
1682                         if (strpos($line, '**') !== 0) {
1683                                 $line = trim($line, '* ');
1684                                 $heading = $line;
1685                                 if( !array_key_exists($heading, $bar) ) $bar[$heading] = array();
1686                         } else {
1687                                 if (strpos($line, '|') !== false) { // sanity check
1688                                         $line = array_map('trim', explode( '|' , trim($line, '* '), 2 ) );
1689                                         $link = wfMsgForContent( $line[0] );
1690                                         if ($link == '-')
1691                                                 continue;
1692                                         if (wfEmptyMsg($line[1], $text = wfMsg($line[1])))
1693                                                 $text = $line[1];
1694                                         if (wfEmptyMsg($line[0], $link))
1695                                                 $link = $line[0];
1696
1697                                         if ( preg_match( '/^(?:' . wfUrlProtocols() . ')/', $link ) ) {
1698                                                 $href = $link;
1699                                         } else {
1700                                                 $title = Title::newFromText( $link );
1701                                                 if ( $title ) {
1702                                                         $title = $title->fixSpecialName();
1703                                                         $href = $title->getLocalURL();
1704                                                 } else {
1705                                                         $href = 'INVALID-TITLE';
1706                                                 }
1707                                         }
1708
1709                                         $bar[$heading][] = array(
1710                                                 'text' => $text,
1711                                                 'href' => $href,
1712                                                 'id' => 'n-' . strtr($line[1], ' ', '-'),
1713                                                 'active' => false
1714                                         );
1715                                 } else { continue; }
1716                         }
1717                 }
1718                 wfRunHooks('SkinBuildSidebar', array($skin, &$bar));
1719                 if ( $wgEnableSidebarCache ) $parserMemc->set( $key, $bar, $wgSidebarCacheExpiry );
1720                 wfProfileOut( __METHOD__ );
1721                 return $bar;
1722         }
1723 }