includes/Skin.php

   1 <?php
   2 if ( ! defined( 'MEDIAWIKI' ) )
   3         die( 1 );
   4
   5 # See skin.txt
   6
   7 /**
   8  * The main skin class that provide methods and properties for all other skins.
   9  * This base class is also the "Standard" skin.
  10  *
  11  * See docs/skin.txt for more information.
  12  *
  13  * @addtogroup Skins
  14  */
  15 class Skin extends Linker {
  16         /**#@+
  17          * @private
  18          */
  19         var $lastdate, $lastline;
  20         var $rc_cache ; # Cache for Enhanced Recent Changes
  21         var $rcCacheIndex ; # Recent Changes Cache Counter for visibility toggle
  22         var $rcMoveIndex;
  23         var $mWatchLinkNum = 0; // Appended to end of watch link id's
  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                         // The old built-in skin
 101                         return 'standard';
 102                 }
 103         }
 104
 105         /**
 106          * Factory method for loading a skin of a given type
 107          * @param string $key 'monobook', 'standard', etc
 108          * @return Skin
 109          * @static
 110          */
 111         static function &newFromKey( $key ) {
 112                 global $wgStyleDirectory;
 113
 114                 $key = Skin::normalizeKey( $key );
 115
 116                 $skinNames = Skin::getSkinNames();
 117                 $skinName = $skinNames[$key];
 118
 119                 # Grab the skin class and initialise it.
 120                 // Preload base classes to work around APC/PHP5 bug
 121                 $deps = "{$wgStyleDirectory}/{$skinName}.deps.php";
 122                 if( file_exists( $deps ) ) include_once( $deps );
 123                 require_once( "{$wgStyleDirectory}/{$skinName}.php" );
 124
 125                 # Check if we got if not failback to default skin
 126                 $className = 'Skin'.$skinName;
 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                         $className = 'SkinStandard';
 134                         require_once( "{$wgStyleDirectory}/Standard.php" );
 135                 }
 136                 $skin = new $className;
 137                 return $skin;
 138         }
 139
 140         /** @return string path to the skin stylesheet */
 141         function getStylesheet() {
 142                 return 'common/wikistandard.css';
 143         }
 144
 145         /** @return string skin name */
 146         public function getSkinName() {
 147                 return $this->skinname;
 148         }
 149
 150         function qbSetting() {
 151                 global $wgOut, $wgUser;
 152
 153                 if ( $wgOut->isQuickbarSuppressed() ) { return 0; }
 154                 $q = $wgUser->getOption( 'quickbar', 0 );
 155                 return $q;
 156         }
 157
 158         function initPage( &$out ) {
 159                 global $wgFavicon, $wgScriptPath, $wgSitename, $wgLanguageCode, $wgLanguageNames;
 160
 161                 $fname = 'Skin::initPage';
 162                 wfProfileIn( $fname );
 163
 164                 if( false !== $wgFavicon ) {
 165                         $out->addLink( array( 'rel' => 'shortcut icon', 'href' => $wgFavicon ) );
 166                 }
 167
 168                 # OpenSearch description link
 169                 $out->addLink( array(
 170                         'rel' => 'search',
 171                         'type' => 'application/opensearchdescription+xml',
 172                         'href' => "$wgScriptPath/opensearch_desc.php",
 173                         'title' => "$wgSitename ({$wgLanguageNames[$wgLanguageCode]})",
 174                 ));
 175
 176                 $this->addMetadataLinks($out);
 177
 178                 $this->mRevisionId = $out->mRevisionId;
 179
 180                 $this->preloadExistence();
 181
 182                 wfProfileOut( $fname );
 183         }
 184
 185         /**
 186          * Preload the existence of three commonly-requested pages in a single query
 187          */
 188         function preloadExistence() {
 189                 global $wgUser, $wgTitle;
 190
 191                 // User/talk link
 192                 $titles = array( $wgUser->getUserPage(), $wgUser->getTalkPage() );
 193
 194                 // Other tab link
 195                 if ( $wgTitle->getNamespace() == NS_SPECIAL ) {
 196                         // nothing
 197                 } elseif ( $wgTitle->isTalkPage() ) {
 198                         $titles[] = $wgTitle->getSubjectPage();
 199                 } else {
 200                         $titles[] = $wgTitle->getTalkPage();
 201                 }
 202
 203                 $lb = new LinkBatch( $titles );
 204                 $lb->execute();
 205         }
 206
 207         function addMetadataLinks( &$out ) {
 208                 global $wgTitle, $wgEnableDublinCoreRdf, $wgEnableCreativeCommonsRdf;
 209                 global $wgRightsPage, $wgRightsUrl;
 210
 211                 if( $out->isArticleRelated() ) {
 212                         # note: buggy CC software only reads first "meta" link
 213                         if( $wgEnableCreativeCommonsRdf ) {
 214                                 $out->addMetadataLink( array(
 215                                         'title' => 'Creative Commons',
 216                                         'type' => 'application/rdf+xml',
 217                                         'href' => $wgTitle->getLocalURL( 'action=creativecommons') ) );
 218                         }
 219                         if( $wgEnableDublinCoreRdf ) {
 220                                 $out->addMetadataLink( array(
 221                                         'title' => 'Dublin Core',
 222                                         'type' => 'application/rdf+xml',
 223                                         'href' => $wgTitle->getLocalURL( 'action=dublincore' ) ) );
 224                         }
 225                 }
 226                 $copyright = '';
 227                 if( $wgRightsPage ) {
 228                         $copy = Title::newFromText( $wgRightsPage );
 229                         if( $copy ) {
 230                                 $copyright = $copy->getLocalURL();
 231                         }
 232                 }
 233                 if( !$copyright && $wgRightsUrl ) {
 234                         $copyright = $wgRightsUrl;
 235                 }
 236                 if( $copyright ) {
 237                         $out->addLink( array(
 238                                 'rel' => 'copyright',
 239                                 'href' => $copyright ) );
 240                 }
 241         }
 242
 243         function outputPage( &$out ) {
 244                 global $wgDebugComments;
 245
 246                 wfProfileIn( __METHOD__ );
 247                 $this->initPage( $out );
 248
 249                 $out->out( $out->headElement() );
 250
 251                 $out->out( "\n<body" );
 252                 $ops = $this->getBodyOptions();
 253                 foreach ( $ops as $name => $val ) {
 254                         $out->out( " $name='$val'" );
 255                 }
 256                 $out->out( ">\n" );
 257                 if ( $wgDebugComments ) {
 258                         $out->out( "<!-- Wiki debugging output:\n" .
 259                           $out->mDebugtext . "-->\n" );
 260                 }
 261
 262                 $out->out( $this->beforeContent() );
 263
 264                 $out->out( $out->mBodytext . "\n" );
 265
 266                 $out->out( $this->afterContent() );
 267
 268                 $out->out( $this->bottomScripts() );
 269
 270                 $out->out( $out->reportTime() );
 271
 272                 $out->out( "\n</body></html>" );
 273                 wfProfileOut( __METHOD__ );
 274         }
 275
 276         static function makeVariablesScript( $data ) {
 277                 global $wgJsMimeType;
 278
 279                 $r = "<script type= \"$wgJsMimeType\">/*<![CDATA[*/\n";
 280                 foreach ( $data as $name => $value ) {
 281                         $encValue = Xml::encodeJsVar( $value );
 282                         $r .= "var $name = $encValue;\n";
 283                 }
 284                 $r .= "/*]]>*/</script>\n";
 285
 286                 return $r;
 287         }
 288
 289         /**
 290          * Make a <script> tag containing global variables
 291          * @param array $data Associative array containing one element:
 292          *     skinname => the skin name
 293          * The odd calling convention is for backwards compatibility
 294          */
 295         static function makeGlobalVariablesScript( $data ) {
 296                 global $wgScript, $wgStylePath, $wgUser;
 297                 global $wgArticlePath, $wgScriptPath, $wgServer, $wgContLang, $wgLang;
 298                 global $wgTitle, $wgCanonicalNamespaceNames, $wgOut, $wgArticle;
 299                 global $wgBreakFrames, $wgRequest;
 300                 global $wgUseAjax, $wgAjaxWatch;
 301
 302                 $ns = $wgTitle->getNamespace();
 303                 $nsname = isset( $wgCanonicalNamespaceNames[ $ns ] ) ? $wgCanonicalNamespaceNames[ $ns ] : $wgTitle->getNsText();
 304
 305                 $vars = array(
 306                         'skin' => $data['skinname'],
 307                         'stylepath' => $wgStylePath,
 308                         'wgArticlePath' => $wgArticlePath,
 309                         'wgScriptPath' => $wgScriptPath,
 310                         'wgScript' => $wgScript,
 311                         'wgServer' => $wgServer,
 312                         'wgCanonicalNamespace' => $nsname,
 313                         'wgCanonicalSpecialPageName' => SpecialPage::resolveAlias( $wgTitle->getDBKey() ),
 314                         'wgNamespaceNumber' => $wgTitle->getNamespace(),
 315                         'wgPageName' => $wgTitle->getPrefixedDBKey(),
 316                         'wgTitle' => $wgTitle->getText(),
 317                         'wgAction' => $wgRequest->getText( 'action', 'view' ),
 318                         'wgRestrictionEdit' => $wgTitle->getRestrictions( 'edit' ),
 319                         'wgRestrictionMove' => $wgTitle->getRestrictions( 'move' ),
 320                         'wgArticleId' => $wgTitle->getArticleId(),
 321                         'wgIsArticle' => $wgOut->isArticle(),
 322                         'wgUserName' => $wgUser->isAnon() ? NULL : $wgUser->getName(),
 323                         'wgUserGroups' => $wgUser->isAnon() ? NULL : $wgUser->getEffectiveGroups(),
 324                         'wgUserLanguage' => $wgLang->getCode(),
 325                         'wgContentLanguage' => $wgContLang->getCode(),
 326                         'wgBreakFrames' => $wgBreakFrames,
 327                         'wgCurRevisionId' => isset( $wgArticle ) ? $wgArticle->getLatest() : 0,
 328                 );
 329
 330                 global $wgLivePreview;
 331                 if ( $wgLivePreview && $wgUser->getOption( 'uselivepreview' ) ) {
 332                         $vars['wgLivepreviewMessageLoading'] = wfMsg( 'livepreview-loading' );
 333                         $vars['wgLivepreviewMessageReady']   = wfMsg( 'livepreview-ready' );
 334                         $vars['wgLivepreviewMessageFailed']  = wfMsg( 'livepreview-failed' );
 335                         $vars['wgLivepreviewMessageError']   = wfMsg( 'livepreview-error' );
 336                 }
 337
 338                 if($wgUseAjax && $wgAjaxWatch && $wgUser->isLoggedIn() ) {
 339                         $msgs = (object)array();
 340                         foreach ( array( 'watch', 'unwatch', 'watching', 'unwatching' ) as $msgName ) {
 341                                 $msgs->{$msgName . 'Msg'} = wfMsg( $msgName );
 342                         }
 343                         $vars['wgAjaxWatch'] = $msgs;
 344                 }
 345
 346                 return self::makeVariablesScript( $vars );
 347         }
 348
 349         function getHeadScripts( $allowUserJs ) {
 350                 global $wgStylePath, $wgUser, $wgJsMimeType, $wgStyleVersion;
 351
 352                 $r = self::makeGlobalVariablesScript( array( 'skinname' => $this->getSkinName() ) );
 353
 354                 $r .= "<script type=\"{$wgJsMimeType}\" src=\"{$wgStylePath}/common/wikibits.js?$wgStyleVersion\"></script>\n";
 355                 global $wgUseSiteJs;
 356                 if ($wgUseSiteJs) {
 357                         if ($wgUser->isLoggedIn()) {
 358                                 $r .= "<script type=\"$wgJsMimeType\" src=\"".htmlspecialchars(self::makeUrl('-','action=raw&smaxage=0&gen=js'))."\"><!-- site js --></script>\n";
 359                         } else {
 360                                 $r .= "<script type=\"$wgJsMimeType\" src=\"".htmlspecialchars(self::makeUrl('-','action=raw&gen=js'))."\"><!-- site js --></script>\n";
 361                         }
 362                 }
 363                 if( $allowUserJs && $wgUser->isLoggedIn() ) {
 364                         $userpage = $wgUser->getUserPage();
 365                         $userjs = htmlspecialchars( self::makeUrl(
 366                                 $userpage->getPrefixedText().'/'.$this->getSkinName().'.js',
 367                                 'action=raw&ctype='.$wgJsMimeType));
 368                         $r .= '<script type="'.$wgJsMimeType.'" src="'.$userjs."\"></script>\n";
 369                 }
 370                 return $r;
 371         }
 372
 373         /**
 374          * To make it harder for someone to slip a user a fake
 375          * user-JavaScript or user-CSS preview, a random token
 376          * is associated with the login session. If it's not
 377          * passed back with the preview request, we won't render
 378          * the code.
 379          *
 380          * @param string $action
 381          * @return bool
 382          * @private
 383          */
 384         function userCanPreview( $action ) {
 385                 global $wgTitle, $wgRequest, $wgUser;
 386
 387                 if( $action != 'submit' )
 388                         return false;
 389                 if( !$wgRequest->wasPosted() )
 390                         return false;
 391                 if( !$wgTitle->userCanEditCssJsSubpage() )
 392                         return false;
 393                 return $wgUser->matchEditToken(
 394                         $wgRequest->getVal( 'wpEditToken' ) );
 395         }
 396
 397         # get the user/site-specific stylesheet, SkinTemplate loads via RawPage.php (settings are cached that way)
 398         function getUserStylesheet() {
 399                 global $wgStylePath, $wgRequest, $wgContLang, $wgSquidMaxage, $wgStyleVersion;
 400                 $sheet = $this->getStylesheet();
 401                 $s = "@import \"$wgStylePath/common/shared.css?$wgStyleVersion\";\n";
 402                 $s .= "@import \"$wgStylePath/common/oldshared.css?$wgStyleVersion\";\n";
 403                 $s .= "@import \"$wgStylePath/$sheet?$wgStyleVersion\";\n";
 404                 if($wgContLang->isRTL()) $s .= "@import \"$wgStylePath/common/common_rtl.css?$wgStyleVersion\";\n";
 405
 406                 $query = "usemsgcache=yes&action=raw&ctype=text/css&smaxage=$wgSquidMaxage";
 407                 $s .= '@import "' . self::makeNSUrl( 'Common.css', $query, NS_MEDIAWIKI ) . "\";\n" .
 408                         '@import "' . self::makeNSUrl( ucfirst( $this->getSkinName() . '.css' ), $query, NS_MEDIAWIKI ) . "\";\n";
 409
 410                 $s .= $this->doGetUserStyles();
 411                 return $s."\n";
 412         }
 413
 414         /**
 415          * This returns MediaWiki:Common.js.  For some bizarre reason, it does
 416          * *not* return any custom user JS from user subpages.  Huh?
 417          *
 418          * @return string
 419          */
 420         function getUserJs() {
 421                 wfProfileIn( __METHOD__ );
 422
 423                 global $wgStylePath;
 424                 $s = "/* generated javascript */\n";
 425                 $s .= "var skin = '{$this->skinname}';\nvar stylepath = '{$wgStylePath}';";
 426                 $s .= "\n\n/* MediaWiki:Common.js */\n";
 427                 $commonJs = wfMsgForContent('common.js');
 428                 if ( !wfEmptyMsg ( 'common.js', $commonJs ) ) {
 429                         $s .= $commonJs;
 430                 }
 431                 wfProfileOut( __METHOD__ );
 432                 return $s;
 433         }
 434
 435         /**
 436          * Return html code that include User stylesheets
 437          */
 438         function getUserStyles() {
 439                 $s = "<style type='text/css'>\n";
 440                 $s .= "/*/*/ /*<![CDATA[*/\n"; # <-- Hide the styles from Netscape 4 without hiding them from IE/Mac
 441                 $s .= $this->getUserStylesheet();
 442                 $s .= "/*]]>*/ /* */\n";
 443                 $s .= "</style>\n";
 444                 return $s;
 445         }
 446
 447         /**
 448          * Some styles that are set by user through the user settings interface.
 449          */
 450         function doGetUserStyles() {
 451                 global $wgUser, $wgUser, $wgRequest, $wgTitle, $wgAllowUserCss;
 452
 453                 $s = '';
 454
 455                 if( $wgAllowUserCss && $wgUser->isLoggedIn() ) { # logged in
 456                         if($wgTitle->isCssSubpage() && $this->userCanPreview( $wgRequest->getText( 'action' ) ) ) {
 457                                 $s .= $wgRequest->getText('wpTextbox1');
 458                         } else {
 459                                 $userpage = $wgUser->getUserPage();
 460                                 $s.= '@import "'.self::makeUrl(
 461                                         $userpage->getPrefixedText().'/'.$this->getSkinName().'.css',
 462                                         'action=raw&ctype=text/css').'";'."\n";
 463                         }
 464                 }
 465
 466                 return $s . $this->reallyDoGetUserStyles();
 467         }
 468
 469         function reallyDoGetUserStyles() {
 470                 global $wgUser;
 471                 $s = '';
 472                 if (($undopt = $wgUser->getOption("underline")) != 2) {
 473                         $underline = $undopt ? 'underline' : 'none';
 474                         $s .= "a { text-decoration: $underline; }\n";
 475                 }
 476                 if( $wgUser->getOption( 'highlightbroken' ) ) {
 477                         $s .= "a.new, #quickbar a.new { color: #CC2200; }\n";
 478                 } else {
 479                         $s .= <<<END
 480 a.new, #quickbar a.new,
 481 a.stub, #quickbar a.stub {
 482         color: inherit;
 483         text-decoration: inherit;
 484 }
 485 a.new:after, #quickbar a.new:after {
 486         content: "?";
 487         color: #CC2200;
 488         text-decoration: $underline;
 489 }
 490 a.stub:after, #quickbar a.stub:after {
 491         content: "!";
 492         color: #772233;
 493         text-decoration: $underline;
 494 }
 495 END;
 496                 }
 497                 if( $wgUser->getOption( 'justify' ) ) {
 498                         $s .= "#article, #bodyContent { text-align: justify; }\n";
 499                 }
 500                 if( !$wgUser->getOption( 'showtoc' ) ) {
 501                         $s .= "#toc { display: none; }\n";
 502                 }
 503                 if( !$wgUser->getOption( 'editsection' ) ) {
 504                         $s .= ".editsection { display: none; }\n";
 505                 }
 506                 return $s;
 507         }
 508
 509         function getBodyOptions() {
 510                 global $wgUser, $wgTitle, $wgOut, $wgRequest, $wgContLang;
 511
 512                 extract( $wgRequest->getValues( 'oldid', 'redirect', 'diff' ) );
 513
 514                 if ( 0 != $wgTitle->getNamespace() ) {
 515                         $a = array( 'bgcolor' => '#ffffec' );
 516                 }
 517                 else $a = array( 'bgcolor' => '#FFFFFF' );
 518                 if($wgOut->isArticle() && $wgUser->getOption('editondblclick') &&
 519                   $wgTitle->userCan( 'edit' ) ) {
 520                         $s = $wgTitle->getFullURL( $this->editUrlOptions() );
 521                         $s = 'document.location = "' .wfEscapeJSString( $s ) .'";';
 522                         $a += array ('ondblclick' => $s);
 523
 524                 }
 525                 $a['onload'] = $wgOut->getOnloadHandler();
 526                 if( $wgUser->getOption( 'editsectiononrightclick' ) ) {
 527                         if( $a['onload'] != '' ) {
 528                                 $a['onload'] .= ';';
 529                         }
 530                         $a['onload'] .= 'setupRightClickEdit()';
 531                 }
 532                 $a['class'] = 'ns-'.$wgTitle->getNamespace().' '.($wgContLang->isRTL() ? "rtl" : "ltr").
 533                 ' '.Sanitizer::escapeClass( 'page-'.$wgTitle->getPrefixedText() );
 534                 return $a;
 535         }
 536
 537         /**
 538          * URL to the logo
 539          */
 540         function getLogo() {
 541                 global $wgLogo;
 542                 return $wgLogo;
 543         }
 544
 545         /**
 546          * This will be called immediately after the <body> tag.  Split into
 547          * two functions to make it easier to subclass.
 548          */
 549         function beforeContent() {
 550                 return $this->doBeforeContent();
 551         }
 552
 553         function doBeforeContent() {
 554                 global $wgContLang;
 555                 $fname = 'Skin::doBeforeContent';
 556                 wfProfileIn( $fname );
 557
 558                 $s = '';
 559                 $qb = $this->qbSetting();
 560
 561                 if( $langlinks = $this->otherLanguages() ) {
 562                         $rows = 2;
 563                         $borderhack = '';
 564                 } else {
 565                         $rows = 1;
 566                         $langlinks = false;
 567                         $borderhack = 'class="top"';
 568                 }
 569
 570                 $s .= "\n<div id='content'>\n<div id='topbar'>\n" .
 571                   "<table border='0' cellspacing='0' width='98%'>\n<tr>\n";
 572
 573                 $shove = ($qb != 0);
 574                 $left = ($qb == 1 || $qb == 3);
 575                 if($wgContLang->isRTL()) $left = !$left;
 576
 577                 if ( !$shove ) {
 578                         $s .= "<td class='top' align='left' valign='top' rowspan='{$rows}'>\n" .
 579                           $this->logoText() . '</td>';
 580                 } elseif( $left ) {
 581                         $s .= $this->getQuickbarCompensator( $rows );
 582                 }
 583                 $l = $wgContLang->isRTL() ? 'right' : 'left';
 584                 $s .= "<td {$borderhack} align='$l' valign='top'>\n";
 585
 586                 $s .= $this->topLinks() ;
 587                 $s .= "<p class='subtitle'>" . $this->pageTitleLinks() . "</p>\n";
 588
 589                 $r = $wgContLang->isRTL() ? "left" : "right";
 590                 $s .= "</td>\n<td {$borderhack} valign='top' align='$r' nowrap='nowrap'>";
 591                 $s .= $this->nameAndLogin();
 592                 $s .= "\n<br />" . $this->searchForm() . "</td>";
 593
 594                 if ( $langlinks ) {
 595                         $s .= "</tr>\n<tr>\n<td class='top' colspan=\"2\">$langlinks</td>\n";
 596                 }
 597
 598                 if ( $shove && !$left ) { # Right
 599                         $s .= $this->getQuickbarCompensator( $rows );
 600                 }
 601                 $s .= "</tr>\n</table>\n</div>\n";
 602                 $s .= "\n<div id='article'>\n";
 603
 604                 $notice = wfGetSiteNotice();
 605                 if( $notice ) {
 606                         $s .= "\n<div id='siteNotice'>$notice</div>\n";
 607                 }
 608                 $s .= $this->pageTitle();
 609                 $s .= $this->pageSubtitle() ;
 610                 $s .= $this->getCategories();
 611                 wfProfileOut( $fname );
 612                 return $s;
 613         }
 614
 615
 616         function getCategoryLinks () {
 617                 global $wgOut, $wgTitle, $wgUseCategoryBrowser;
 618                 global $wgContLang;
 619
 620                 if( count( $wgOut->mCategoryLinks ) == 0 ) return '';
 621
 622                 # Separator
 623                 $sep = wfMsgHtml( 'catseparator' );
 624
 625                 // Use Unicode bidi embedding override characters,
 626                 // to make sure links don't smash each other up in ugly ways.
 627                 $dir = $wgContLang->isRTL() ? 'rtl' : 'ltr';
 628                 $embed = "<span dir='$dir'>";
 629                 $pop = '</span>';
 630                 $t = $embed . implode ( "{$pop} {$sep} {$embed}" , $wgOut->mCategoryLinks ) . $pop;
 631
 632                 $msg = wfMsgExt( 'pagecategories', array( 'parsemag', 'escape' ), count( $wgOut->mCategoryLinks ) );
 633                 $s = $this->makeLinkObj( Title::newFromText( wfMsgForContent('pagecategorieslink') ), $msg )
 634                         . ': ' . $t;
 635
 636                 # optional 'dmoz-like' category browser. Will be shown under the list
 637                 # of categories an article belong to
 638                 if($wgUseCategoryBrowser) {
 639                         $s .= '<br /><hr />';
 640
 641                         # get a big array of the parents tree
 642                         $parenttree = $wgTitle->getParentCategoryTree();
 643                         # Skin object passed by reference cause it can not be
 644                         # accessed under the method subfunction drawCategoryBrowser
 645                         $tempout = explode("\n", Skin::drawCategoryBrowser($parenttree, $this) );
 646                         # Clean out bogus first entry and sort them
 647                         unset($tempout[0]);
 648                         asort($tempout);
 649                         # Output one per line
 650                         $s .= implode("<br />\n", $tempout);
 651                 }
 652
 653                 return $s;
 654         }
 655
 656         /** Render the array as a serie of links.
 657          * @param $tree Array: categories tree returned by Title::getParentCategoryTree
 658          * @param &skin Object: skin passed by reference
 659          * @return String separated by &gt;, terminate with "\n"
 660          */
 661         function drawCategoryBrowser($tree, &$skin) {
 662                 $return = '';
 663                 foreach ($tree as $element => $parent) {
 664                         if (empty($parent)) {
 665                                 # element start a new list
 666                                 $return .= "\n";
 667                         } else {
 668                                 # grab the others elements
 669                                 $return .= Skin::drawCategoryBrowser($parent, $skin) . ' &gt; ';
 670                         }
 671                         # add our current element to the list
 672                         $eltitle = Title::NewFromText($element);
 673                         $return .=  $skin->makeLinkObj( $eltitle, $eltitle->getText() ) ;
 674                 }
 675                 return $return;
 676         }
 677
 678         function getCategories() {
 679                 $catlinks=$this->getCategoryLinks();
 680                 if(!empty($catlinks)) {
 681                         return "<p class='catlinks'>{$catlinks}</p>";
 682                 }
 683         }
 684
 685         function getQuickbarCompensator( $rows = 1 ) {
 686                 return "<td width='152' rowspan='{$rows}'>&nbsp;</td>";
 687         }
 688
 689         /**
 690          * This gets called shortly before the \</body\> tag.
 691          * @return String HTML to be put before \</body\>
 692          */
 693         function afterContent() {
 694                 $printfooter = "<div class=\"printfooter\">\n" . $this->printFooter() . "</div>\n";
 695                 return $printfooter . $this->doAfterContent();
 696         }
 697
 698         /**
 699          * This gets called shortly before the \</body\> tag.
 700          * @return String HTML-wrapped JS code to be put before \</body\>
 701          */
 702         function bottomScripts() {
 703                 global $wgJsMimeType;
 704                 return "\n\t\t<script type=\"$wgJsMimeType\">if (window.runOnloadHook) runOnloadHook();</script>\n";
 705         }
 706
 707         /** @return string Retrievied from HTML text */
 708         function printSource() {
 709                 global $wgTitle;
 710                 $url = htmlspecialchars( $wgTitle->getFullURL() );
 711                 return wfMsg( 'retrievedfrom', '<a href="'.$url.'">'.$url.'</a>' );
 712         }
 713
 714         function printFooter() {
 715                 return "<p>" .  $this->printSource() .
 716                         "</p>\n\n<p>" . $this->pageStats() . "</p>\n";
 717         }
 718
 719         /** overloaded by derived classes */
 720         function doAfterContent() { }
 721
 722         function pageTitleLinks() {
 723                 global $wgOut, $wgTitle, $wgUser, $wgRequest;
 724
 725                 $oldid = $wgRequest->getVal( 'oldid' );
 726                 $diff = $wgRequest->getVal( 'diff' );
 727                 $action = $wgRequest->getText( 'action' );
 728
 729                 $s = $this->printableLink();
 730                 $disclaimer = $this->disclaimerLink(); # may be empty
 731                 if( $disclaimer ) {
 732                         $s .= ' | ' . $disclaimer;
 733                 }
 734                 $privacy = $this->privacyLink(); # may be empty too
 735                 if( $privacy ) {
 736                         $s .= ' | ' . $privacy;
 737                 }
 738
 739                 if ( $wgOut->isArticleRelated() ) {
 740                         if ( $wgTitle->getNamespace() == NS_IMAGE ) {
 741                                 $name = $wgTitle->getDBkey();
 742                                 $image = wfFindFile( $wgTitle );
 743                                 if( $image ) {
 744                                         $link = htmlspecialchars( $image->getURL() );
 745                                         $style = $this->getInternalLinkAttributes( $link, $name );
 746                                         $s .= " | <a href=\"{$link}\"{$style}>{$name}</a>";
 747                                 }
 748                         }
 749                 }
 750                 if ( 'history' == $action || isset( $diff ) || isset( $oldid ) ) {
 751                         $s .= ' | ' . $this->makeKnownLinkObj( $wgTitle,
 752                                         wfMsg( 'currentrev' ) );
 753                 }
 754
 755                 if ( $wgUser->getNewtalk() ) {
 756                         # do not show "You have new messages" text when we are viewing our
 757                         # own talk page
 758                         if( !$wgTitle->equals( $wgUser->getTalkPage() ) ) {
 759                                 $tl = $this->makeKnownLinkObj( $wgUser->getTalkPage(), wfMsgHtml( 'newmessageslink' ), 'redirect=no' );
 760                                 $dl = $this->makeKnownLinkObj( $wgUser->getTalkPage(), wfMsgHtml( 'newmessagesdifflink' ), 'diff=cur' );
 761                                 $s.= ' | <strong>'. wfMsg( 'youhavenewmessages', $tl, $dl ) . '</strong>';
 762                                 # disable caching
 763                                 $wgOut->setSquidMaxage(0);
 764                                 $wgOut->enableClientCache(false);
 765                         }
 766                 }
 767
 768                 $undelete = $this->getUndeleteLink();
 769                 if( !empty( $undelete ) ) {
 770                         $s .= ' | '.$undelete;
 771                 }
 772                 return $s;
 773         }
 774
 775         function getUndeleteLink() {
 776                 global $wgUser, $wgTitle, $wgContLang, $action;
 777                 if(     $wgUser->isAllowed( 'deletedhistory' ) &&
 778                         (($wgTitle->getArticleId() == 0) || ($action == "history")) &&
 779                         ($n = $wgTitle->isDeleted() ) )
 780                 {
 781                         if ( $wgUser->isAllowed( 'delete' ) ) {
 782                                 $msg = 'thisisdeleted';
 783                         } else {
 784                                 $msg = 'viewdeleted';
 785                         }
 786                         return wfMsg( $msg,
 787                                 $this->makeKnownLinkObj(
 788                                         SpecialPage::getTitleFor( 'Undelete', $wgTitle->getPrefixedDBkey() ),
 789                                         wfMsgExt( 'restorelink', array( 'parsemag', 'escape' ), $n ) ) );
 790                 }
 791                 return '';
 792         }
 793
 794         function printableLink() {
 795                 global $wgOut, $wgFeedClasses, $wgRequest;
 796
 797                 $printurl = $wgRequest->escapeAppendQuery( 'printable=yes' );
 798
 799                 $s = "<a href=\"$printurl\">" . wfMsg( 'printableversion' ) . '</a>';
 800                 if( $wgOut->isSyndicated() ) {
 801                         foreach( $wgFeedClasses as $format => $class ) {
 802                                 $feedurl = $wgRequest->escapeAppendQuery( "feed=$format" );
 803                                 $s .= " | <a href=\"$feedurl\">{$format}</a>";
 804                         }
 805                 }
 806                 return $s;
 807         }
 808
 809         function pageTitle() {
 810                 global $wgOut;
 811                 $s = '<h1 class="pagetitle">' . htmlspecialchars( $wgOut->getPageTitle() ) . '</h1>';
 812                 return $s;
 813         }
 814
 815         function pageSubtitle() {
 816                 global $wgOut;
 817
 818                 $sub = $wgOut->getSubtitle();
 819                 if ( '' == $sub ) {
 820                         global $wgExtraSubtitle;
 821                         $sub = wfMsg( 'tagline' ) . $wgExtraSubtitle;
 822                 }
 823                 $subpages = $this->subPageSubtitle();
 824                 $sub .= !empty($subpages)?"</p><p class='subpages'>$subpages":'';
 825                 $s = "<p class='subtitle'>{$sub}</p>\n";
 826                 return $s;
 827         }
 828
 829         function subPageSubtitle() {
 830                 global $wgOut,$wgTitle,$wgNamespacesWithSubpages;
 831                 $subpages = '';
 832                 if($wgOut->isArticle() && !empty($wgNamespacesWithSubpages[$wgTitle->getNamespace()])) {
 833                         $ptext=$wgTitle->getPrefixedText();
 834                         if(preg_match('/\//',$ptext)) {
 835                                 $links = explode('/',$ptext);
 836                                 $c = 0;
 837                                 $growinglink = '';
 838                                 foreach($links as $link) {
 839                                         $c++;
 840                                         if ($c<count($links)) {
 841                                                 $growinglink .= $link;
 842                                                 $getlink = $this->makeLink( $growinglink, htmlspecialchars( $link ) );
 843                                                 if(preg_match('/class="new"/i',$getlink)) { break; } # this is a hack, but it saves time
 844                                                 if ($c>1) {
 845                                                         $subpages .= ' | ';
 846                                                 } else  {
 847                                                         $subpages .= '&lt; ';
 848                                                 }
 849                                                 $subpages .= $getlink;
 850                                                 $growinglink .= '/';
 851                                         }
 852                                 }
 853                         }
 854                 }
 855                 return $subpages;
 856         }
 857
 858         /**
 859          * Returns true if the IP should be shown in the header
 860          */
 861         function showIPinHeader() {
 862                 global $wgShowIPinHeader;
 863                 return $wgShowIPinHeader && session_id() != '';
 864         }
 865
 866         function nameAndLogin() {
 867                 global $wgUser, $wgTitle, $wgLang, $wgContLang;
 868
 869                 $lo = $wgContLang->specialPage( 'Userlogout' );
 870
 871                 $s = '';
 872                 if ( $wgUser->isAnon() ) {
 873                         if( $this->showIPinHeader() ) {
 874                                 $n = wfGetIP();
 875
 876                                 $tl = $this->makeKnownLinkObj( $wgUser->getTalkPage(),
 877                                   $wgLang->getNsText( NS_TALK ) );
 878
 879                                 $s .= $n . ' ('.$tl.')';
 880                         } else {
 881                                 $s .= wfMsg('notloggedin');
 882                         }
 883
 884                         $rt = $wgTitle->getPrefixedURL();
 885                         if ( 0 == strcasecmp( urlencode( $lo ), $rt ) ) {
 886                                 $q = '';
 887                         } else { $q = "returnto={$rt}"; }
 888
 889                         $s .= "\n<br />" . $this->makeKnownLinkObj(
 890                                 SpecialPage::getTitleFor( 'Userlogin' ),
 891                                 wfMsg( 'login' ), $q );
 892                 } else {
 893                         $n = $wgUser->getName();
 894                         $rt = $wgTitle->getPrefixedURL();
 895                         $tl = $this->makeKnownLinkObj( $wgUser->getTalkPage(),
 896                           $wgLang->getNsText( NS_TALK ) );
 897
 898                         $tl = " ({$tl})";
 899
 900                         $s .= $this->makeKnownLinkObj( $wgUser->getUserPage(),
 901                           $n ) . "{$tl}<br />" .
 902                           $this->makeKnownLinkObj( SpecialPage::getTitleFor( 'Userlogout' ), wfMsg( 'logout' ),
 903                           "returnto={$rt}" ) . ' | ' .
 904                           $this->specialLink( 'preferences' );
 905                 }
 906                 $s .= ' | ' . $this->makeKnownLink( wfMsgForContent( 'helppage' ),
 907                   wfMsg( 'help' ) );
 908
 909                 return $s;
 910         }
 911
 912         function getSearchLink() {
 913                 $searchPage = SpecialPage::getTitleFor( 'Search' );
 914                 return $searchPage->getLocalURL();
 915         }
 916
 917         function escapeSearchLink() {
 918                 return htmlspecialchars( $this->getSearchLink() );
 919         }
 920
 921         function searchForm() {
 922                 global $wgRequest;
 923                 $search = $wgRequest->getText( 'search' );
 924
 925                 $s = '<form name="search" class="inline" method="post" action="'
 926                   . $this->escapeSearchLink() . "\">\n"
 927                   . '<input type="text" name="search" size="19" value="'
 928                   . htmlspecialchars(substr($search,0,256)) . "\" />\n"
 929                   . '<input type="submit" name="go" value="' . wfMsg ('searcharticle') . '" />&nbsp;'
 930                   . '<input type="submit" name="fulltext" value="' . wfMsg ('searchbutton') . "\" />\n</form>";
 931
 932                 return $s;
 933         }
 934
 935         function topLinks() {
 936                 global $wgOut;
 937                 $sep = " |\n";
 938
 939                 $s = $this->mainPageLink() . $sep
 940                   . $this->specialLink( 'recentchanges' );
 941
 942                 if ( $wgOut->isArticleRelated() ) {
 943                         $s .=  $sep . $this->editThisPage()
 944                           . $sep . $this->historyLink();
 945                 }
 946                 # Many people don't like this dropdown box
 947                 #$s .= $sep . $this->specialPagesList();
 948
 949                 $s .= $this->variantLinks();
 950
 951                 $s .= $this->extensionTabLinks();
 952
 953                 return $s;
 954         }
 955
 956         /**
 957          * Compatibility for extensions adding functionality through tabs.
 958          * Eventually these old skins should be replaced with SkinTemplate-based
 959          * versions, sigh...
 960          * @return string
 961          */
 962         function extensionTabLinks() {
 963                 $tabs = array();
 964                 $s = '';
 965                 wfRunHooks( 'SkinTemplateTabs', array( $this, &$tabs ) );
 966                 foreach( $tabs as $tab ) {
 967                         $s .= ' | ' . Xml::element( 'a',
 968                                 array( 'href' => $tab['href'] ),
 969                                 $tab['text'] );
 970                 }
 971                 return $s;
 972         }
 973
 974         /**
 975          * Language/charset variant links for classic-style skins
 976          * @return string
 977          */
 978         function variantLinks() {
 979                 $s = '';
 980                 /* show links to different language variants */
 981                 global $wgDisableLangConversion, $wgContLang, $wgTitle;
 982                 $variants = $wgContLang->getVariants();
 983                 if( !$wgDisableLangConversion && sizeof( $variants ) > 1 ) {
 984                         foreach( $variants as $code ) {
 985                                 $varname = $wgContLang->getVariantname( $code );
 986                                 if( $varname == 'disable' )
 987                                         continue;
 988                                 $s .= ' | <a href="' . $wgTitle->escapeLocalUrl( 'variant=' . $code ) . '">' . htmlspecialchars( $varname ) . '</a>';
 989                         }
 990                 }
 991                 return $s;
 992         }
 993
 994         function bottomLinks() {
 995                 global $wgOut, $wgUser, $wgTitle, $wgUseTrackbacks;
 996                 $sep = " |\n";
 997
 998                 $s = '';
 999                 if ( $wgOut->isArticleRelated() ) {
1000                         $s .= '<strong>' . $this->editThisPage() . '</strong>';
1001                         if ( $wgUser->isLoggedIn() ) {
1002                                 $s .= $sep . $this->watchThisPage();
1003                         }
1004                         $s .= $sep . $this->talkLink()
1005                           . $sep . $this->historyLink()
1006                           . $sep . $this->whatLinksHere()
1007                           . $sep . $this->watchPageLinksLink();
1008
1009                         if ($wgUseTrackbacks)
1010                                 $s .= $sep . $this->trackbackLink();
1011
1012                         if ( $wgTitle->getNamespace() == NS_USER
1013                             || $wgTitle->getNamespace() == NS_USER_TALK )
1014
1015                         {
1016                                 $id=User::idFromName($wgTitle->getText());
1017                                 $ip=User::isIP($wgTitle->getText());
1018
1019                                 if($id || $ip) { # both anons and non-anons have contri list
1020                                         $s .= $sep . $this->userContribsLink();
1021                                 }
1022                                 if( $this->showEmailUser( $id ) ) {
1023                                         $s .= $sep . $this->emailUserLink();
1024                                 }
1025                         }
1026                         if ( $wgTitle->getArticleId() ) {
1027                                 $s .= "\n<br />";
1028                                 if($wgUser->isAllowed('delete')) { $s .= $this->deleteThisPage(); }
1029                                 if($wgUser->isAllowed('protect')) { $s .= $sep . $this->protectThisPage(); }
1030                                 if($wgUser->isAllowed('move')) { $s .= $sep . $this->moveThisPage(); }
1031                         }
1032                         $s .= "<br />\n" . $this->otherLanguages();
1033                 }
1034                 return $s;
1035         }
1036
1037         function pageStats() {
1038                 global $wgOut, $wgLang, $wgArticle, $wgRequest, $wgUser;
1039                 global $wgDisableCounters, $wgMaxCredits, $wgShowCreditsIfMax, $wgTitle, $wgPageShowWatchingUsers;
1040
1041                 $oldid = $wgRequest->getVal( 'oldid' );
1042                 $diff = $wgRequest->getVal( 'diff' );
1043                 if ( ! $wgOut->isArticle() ) { return ''; }
1044                 if ( isset( $oldid ) || isset( $diff ) ) { return ''; }
1045                 if ( 0 == $wgArticle->getID() ) { return ''; }
1046
1047                 $s = '';
1048                 if ( !$wgDisableCounters ) {
1049                         $count = $wgLang->formatNum( $wgArticle->getCount() );
1050                         if ( $count ) {
1051                                 $s = wfMsgExt( 'viewcount', array( 'parseinline' ), $count );
1052                         }
1053                 }
1054
1055                 if (isset($wgMaxCredits) && $wgMaxCredits != 0) {
1056                     require_once('Credits.php');
1057                     $s .= ' ' . getCredits($wgArticle, $wgMaxCredits, $wgShowCreditsIfMax);
1058                 } else {
1059                     $s .= $this->lastModified();
1060                 }
1061
1062                 if ($wgPageShowWatchingUsers && $wgUser->getOption( 'shownumberswatching' )) {
1063                         $dbr = wfGetDB( DB_SLAVE );
1064                         $watchlist = $dbr->tableName( 'watchlist' );
1065                         $sql = "SELECT COUNT(*) AS n FROM $watchlist
1066                                 WHERE wl_title='" . $dbr->strencode($wgTitle->getDBKey()) .
1067                                 "' AND  wl_namespace=" . $wgTitle->getNamespace() ;
1068                         $res = $dbr->query( $sql, 'Skin::pageStats');
1069                         $x = $dbr->fetchObject( $res );
1070                         $s .= ' ' . wfMsg('number_of_watching_users_pageview', $x->n );
1071                 }
1072
1073                 return $s . ' ' .  $this->getCopyright();
1074         }
1075
1076         function getCopyright( $type = 'detect' ) {
1077                 global $wgRightsPage, $wgRightsUrl, $wgRightsText, $wgRequest;
1078
1079                 if ( $type == 'detect' ) {
1080                         $oldid = $wgRequest->getVal( 'oldid' );
1081                         $diff = $wgRequest->getVal( 'diff' );
1082
1083                         if ( !is_null( $oldid ) && is_null( $diff ) && wfMsgForContent( 'history_copyright' ) !== '-' ) {
1084                                 $type = 'history';
1085                         } else {
1086                                 $type = 'normal';
1087                         }
1088                 }
1089
1090                 if ( $type == 'history' ) {
1091                         $msg = 'history_copyright';
1092                 } else {
1093                         $msg = 'copyright';
1094                 }
1095
1096                 $out = '';
1097                 if( $wgRightsPage ) {
1098                         $link = $this->makeKnownLink( $wgRightsPage, $wgRightsText );
1099                 } elseif( $wgRightsUrl ) {
1100                         $link = $this->makeExternalLink( $wgRightsUrl, $wgRightsText );
1101                 } else {
1102                         # Give up now
1103                         return $out;
1104                 }
1105                 $out .= wfMsgForContent( $msg, $link );
1106                 return $out;
1107         }
1108
1109         function getCopyrightIcon() {
1110                 global $wgRightsUrl, $wgRightsText, $wgRightsIcon, $wgCopyrightIcon;
1111                 $out = '';
1112                 if ( isset( $wgCopyrightIcon ) && $wgCopyrightIcon ) {
1113                         $out = $wgCopyrightIcon;
1114                 } else if ( $wgRightsIcon ) {
1115                         $icon = htmlspecialchars( $wgRightsIcon );
1116                         if ( $wgRightsUrl ) {
1117                                 $url = htmlspecialchars( $wgRightsUrl );
1118                                 $out .= '<a href="'.$url.'">';
1119                         }
1120                         $text = htmlspecialchars( $wgRightsText );
1121                         $out .= "<img src=\"$icon\" alt='$text' />";
1122                         if ( $wgRightsUrl ) {
1123                                 $out .= '</a>';
1124                         }
1125                 }
1126                 return $out;
1127         }
1128
1129         function getPoweredBy() {
1130                 global $wgStylePath;
1131                 $url = htmlspecialchars( "$wgStylePath/common/images/poweredby_mediawiki_88x31.png" );
1132                 $img = '<a href="http://www.mediawiki.org/"><img src="'.$url.'" alt="Powered by MediaWiki" /></a>';
1133                 return $img;
1134         }
1135
1136         function lastModified() {
1137                 global $wgLang, $wgArticle, $wgLoadBalancer;
1138
1139                 $timestamp = $wgArticle->getTimestamp();
1140                 if ( $timestamp ) {
1141                         $d = $wgLang->date( $timestamp, true );
1142                         $t = $wgLang->time( $timestamp, true );
1143                         $s = ' ' . wfMsg( 'lastmodifiedat', $d, $t );
1144                 } else {
1145                         $s = '';
1146                 }
1147                 if ( $wgLoadBalancer->getLaggedSlaveMode() ) {
1148                         $s .= ' <strong>' . wfMsg( 'laggedslavemode' ) . '</strong>';
1149                 }
1150                 return $s;
1151         }
1152
1153         function logoText( $align = '' ) {
1154                 if ( '' != $align ) { $a = " align='{$align}'"; }
1155                 else { $a = ''; }
1156
1157                 $mp = wfMsg( 'mainpage' );
1158                 $mptitle = Title::newMainPage();
1159                 $url = ( is_object($mptitle) ? $mptitle->escapeLocalURL() : '' );
1160
1161                 $logourl = $this->getLogo();
1162                 $s = "<a href='{$url}'><img{$a} src='{$logourl}' alt='[{$mp}]' /></a>";
1163                 return $s;
1164         }
1165
1166         /**
1167          * show a drop-down box of special pages
1168          */
1169         function specialPagesList() {
1170                 global $wgUser, $wgContLang, $wgServer, $wgRedirectScript;
1171                 $pages = array_merge( SpecialPage::getRegularPages(), SpecialPage::getRestrictedPages() );
1172                 foreach ( $pages as $name => $page ) {
1173                         $pages[$name] = $page->getDescription();
1174                 }
1175
1176                 $go = wfMsg( 'go' );
1177                 $sp = wfMsg( 'specialpages' );
1178                 $spp = $wgContLang->specialPage( 'Specialpages' );
1179
1180                 $s = '<form id="specialpages" method="get" class="inline" ' .
1181                   'action="' . htmlspecialchars( "{$wgServer}{$wgRedirectScript}" ) . "\">\n";
1182                 $s .= "<select name=\"wpDropdown\">\n";
1183                 $s .= "<option value=\"{$spp}\">{$sp}</option>\n";
1184
1185
1186                 foreach ( $pages as $name => $desc ) {
1187                         $p = $wgContLang->specialPage( $name );
1188                         $s .= "<option value=\"{$p}\">{$desc}</option>\n";
1189                 }
1190                 $s .= "</select>\n";
1191                 $s .= "<input type='submit' value=\"{$go}\" name='redirect' />\n";
1192                 $s .= "</form>\n";
1193                 return $s;
1194         }
1195
1196         function mainPageLink() {
1197                 $s = $this->makeKnownLinkObj( Title::newMainPage(), wfMsg( 'mainpage' ) );
1198                 return $s;
1199         }
1200
1201         function copyrightLink() {
1202                 $s = $this->makeKnownLink( wfMsgForContent( 'copyrightpage' ),
1203                   wfMsg( 'copyrightpagename' ) );
1204                 return $s;
1205         }
1206
1207         private function footerLink ( $desc, $page ) {
1208                 // if the link description has been set to "-" in the default language,
1209                 if ( wfMsgForContent( $desc )  == '-') {
1210                         // then it is disabled, for all languages.
1211                         return '';
1212                 } else {
1213                         // Otherwise, we display the link for the user, described in their
1214                         // language (which may or may not be the same as the default language),
1215                         // but we make the link target be the one site-wide page.
1216                         return $this->makeKnownLink( wfMsgForContent( $page ), wfMsg( $desc ) );
1217                 }
1218         }
1219
1220         function privacyLink() {
1221                 return $this->footerLink( 'privacy', 'privacypage' );
1222         }
1223
1224         function aboutLink() {
1225                 return $this->footerLink( 'aboutsite', 'aboutpage' );
1226         }
1227
1228         function disclaimerLink() {
1229                 return $this->footerLink( 'disclaimers', 'disclaimerpage' );
1230         }
1231
1232         function editThisPage() {
1233                 global $wgOut, $wgTitle;
1234
1235                 if ( ! $wgOut->isArticleRelated() ) {
1236                         $s = wfMsg( 'protectedpage' );
1237                 } else {
1238                         if ( $wgTitle->userCan( 'edit' ) ) {
1239                                 $t = wfMsg( 'editthispage' );
1240                         } else {
1241                                 $t = wfMsg( 'viewsource' );
1242                         }
1243
1244                         $s = $this->makeKnownLinkObj( $wgTitle, $t, $this->editUrlOptions() );
1245                 }
1246                 return $s;
1247         }
1248
1249         /**
1250          * Return URL options for the 'edit page' link.
1251          * This may include an 'oldid' specifier, if the current page view is such.
1252          *
1253          * @return string
1254          * @private
1255          */
1256         function editUrlOptions() {
1257                 global $wgArticle;
1258
1259                 if( $this->mRevisionId && ! $wgArticle->isCurrent() ) {
1260                         return "action=edit&oldid=" . intval( $this->mRevisionId );
1261                 } else {
1262                         return "action=edit";
1263                 }
1264         }
1265
1266         function deleteThisPage() {
1267                 global $wgUser, $wgTitle, $wgRequest;
1268
1269                 $diff = $wgRequest->getVal( 'diff' );
1270                 if ( $wgTitle->getArticleId() && ( ! $diff ) && $wgUser->isAllowed('delete') ) {
1271                         $t = wfMsg( 'deletethispage' );
1272
1273                         $s = $this->makeKnownLinkObj( $wgTitle, $t, 'action=delete' );
1274                 } else {
1275                         $s = '';
1276                 }
1277                 return $s;
1278         }
1279
1280         function protectThisPage() {
1281                 global $wgUser, $wgTitle, $wgRequest;
1282
1283                 $diff = $wgRequest->getVal( 'diff' );
1284                 if ( $wgTitle->getArticleId() && ( ! $diff ) && $wgUser->isAllowed('protect') ) {
1285                         if ( $wgTitle->isProtected() ) {
1286                                 $t = wfMsg( 'unprotectthispage' );
1287                                 $q = 'action=unprotect';
1288                         } else {
1289                                 $t = wfMsg( 'protectthispage' );
1290                                 $q = 'action=protect';
1291                         }
1292                         $s = $this->makeKnownLinkObj( $wgTitle, $t, $q );
1293                 } else {
1294                         $s = '';
1295                 }
1296                 return $s;
1297         }
1298
1299         function watchThisPage() {
1300                 global $wgOut, $wgTitle;
1301                 ++$this->mWatchLinkNum;
1302
1303                 if ( $wgOut->isArticleRelated() ) {
1304                         if ( $wgTitle->userIsWatching() ) {
1305                                 $t = wfMsg( 'unwatchthispage' );
1306                                 $q = 'action=unwatch';
1307                                 $id = "mw-unwatch-link".$this->mWatchLinkNum;
1308                         } else {
1309                                 $t = wfMsg( 'watchthispage' );
1310                                 $q = 'action=watch';
1311                                 $id = 'mw-watch-link'.$this->mWatchLinkNum;
1312                         }
1313                         $s = $this->makeKnownLinkObj( $wgTitle, $t, $q, '', '', " id=\"$id\"" );
1314                 } else {
1315                         $s = wfMsg( 'notanarticle' );
1316                 }
1317                 return $s;
1318         }
1319
1320         function moveThisPage() {
1321                 global $wgTitle;
1322
1323                 if ( $wgTitle->userCan( 'move' ) ) {
1324                         return $this->makeKnownLinkObj( SpecialPage::getTitleFor( 'Movepage' ),
1325                           wfMsg( 'movethispage' ), 'target=' . $wgTitle->getPrefixedURL() );
1326                 } else {
1327                         // no message if page is protected - would be redundant
1328                         return '';
1329                 }
1330         }
1331
1332         function historyLink() {
1333                 global $wgTitle;
1334
1335                 return $this->makeKnownLinkObj( $wgTitle,
1336                   wfMsg( 'history' ), 'action=history' );
1337         }
1338
1339         function whatLinksHere() {
1340                 global $wgTitle;
1341
1342                 return $this->makeKnownLinkObj(
1343                         SpecialPage::getTitleFor( 'Whatlinkshere', $wgTitle->getPrefixedDBkey() ),
1344                         wfMsg( 'whatlinkshere' ) );
1345         }
1346
1347         function userContribsLink() {
1348                 global $wgTitle;
1349
1350                 return $this->makeKnownLinkObj(
1351                         SpecialPage::getTitleFor( 'Contributions', $wgTitle->getDBkey() ),
1352                         wfMsg( 'contributions' ) );
1353         }
1354
1355         function showEmailUser( $id ) {
1356                 global $wgEnableEmail, $wgEnableUserEmail, $wgUser;
1357                 return $wgEnableEmail &&
1358                        $wgEnableUserEmail &&
1359                        $wgUser->isLoggedIn() && # show only to signed in users
1360                        0 != $id; # we can only email to non-anons ..
1361 #                      '' != $id->getEmail() && # who must have an email address stored ..
1362 #                      0 != $id->getEmailauthenticationtimestamp() && # .. which is authenticated
1363 #                      1 != $wgUser->getOption('disablemail'); # and not disabled
1364         }
1365
1366         function emailUserLink() {
1367                 global $wgTitle;
1368
1369                 return $this->makeKnownLinkObj(
1370                         SpecialPage::getTitleFor( 'Emailuser', $wgTitle->getDBkey() ),
1371                         wfMsg( 'emailuser' ) );
1372         }
1373
1374         function watchPageLinksLink() {
1375                 global $wgOut, $wgTitle;
1376
1377                 if ( ! $wgOut->isArticleRelated() ) {
1378                         return '(' . wfMsg( 'notanarticle' ) . ')';
1379                 } else {
1380                         return $this->makeKnownLinkObj(
1381                                 SpecialPage::getTitleFor( 'Recentchangeslinked', $wgTitle->getPrefixedDBkey() ),
1382                                 wfMsg( 'recentchangeslinked' ) );
1383                 }
1384         }
1385
1386         function trackbackLink() {
1387                 global $wgTitle;
1388
1389                 return "<a href=\"" . $wgTitle->trackbackURL() . "\">"
1390                         . wfMsg('trackbacklink') . "</a>";
1391         }
1392
1393         function otherLanguages() {
1394                 global $wgOut, $wgContLang, $wgHideInterlanguageLinks;
1395
1396                 if ( $wgHideInterlanguageLinks ) {
1397                         return '';
1398                 }
1399
1400                 $a = $wgOut->getLanguageLinks();
1401                 if ( 0 == count( $a ) ) {
1402                         return '';
1403                 }
1404
1405                 $s = wfMsg( 'otherlanguages' ) . ': ';
1406                 $first = true;
1407                 if($wgContLang->isRTL()) $s .= '<span dir="LTR">';
1408                 foreach( $a as $l ) {
1409                         if ( ! $first ) { $s .= ' | '; }
1410                         $first = false;
1411
1412                         $nt = Title::newFromText( $l );
1413                         $url = $nt->escapeFullURL();
1414                         $text = $wgContLang->getLanguageName( $nt->getInterwiki() );
1415
1416                         if ( '' == $text ) { $text = $l; }
1417                         $style = $this->getExternalLinkAttributes( $l, $text );
1418                         $s .= "<a href=\"{$url}\"{$style}>{$text}</a>";
1419                 }
1420                 if($wgContLang->isRTL()) $s .= '</span>';
1421                 return $s;
1422         }
1423
1424         function bugReportsLink() {
1425                 $s = $this->makeKnownLink( wfMsgForContent( 'bugreportspage' ),
1426                   wfMsg( 'bugreports' ) );
1427                 return $s;
1428         }
1429
1430         function talkLink() {
1431                 global $wgTitle;
1432
1433                 if ( NS_SPECIAL == $wgTitle->getNamespace() ) {
1434                         # No discussion links for special pages
1435                         return '';
1436                 }
1437
1438                 if( $wgTitle->isTalkPage() ) {
1439                         $link = $wgTitle->getSubjectPage();
1440                         switch( $link->getNamespace() ) {
1441                                 case NS_MAIN:
1442                                         $text = wfMsg( 'articlepage' );
1443                                         break;
1444                                 case NS_USER:
1445                                         $text = wfMsg( 'userpage' );
1446                                         break;
1447                                 case NS_PROJECT:
1448                                         $text = wfMsg( 'projectpage' );
1449                                         break;
1450                                 case NS_IMAGE:
1451                                         $text = wfMsg( 'imagepage' );
1452                                         break;
1453                                 case NS_MEDIAWIKI:
1454                                         $text = wfMsg( 'mediawikipage' );
1455                                         break;
1456                                 case NS_TEMPLATE:
1457                                         $text = wfMsg( 'templatepage' );
1458                                         break;
1459                                 case NS_HELP:
1460                                         $text = wfMsg( 'viewhelppage' );
1461                                         break;
1462                                 case NS_CATEGORY:
1463                                         $text = wfMsg( 'categorypage' );
1464                                         break;
1465                                 default:
1466                                         $text = wfMsg( 'articlepage' );
1467                         }
1468                 } else {
1469                         $link = $wgTitle->getTalkPage();
1470                         $text = wfMsg( 'talkpage' );
1471                 }
1472
1473                 $s = $this->makeLinkObj( $link, $text );
1474
1475                 return $s;
1476         }
1477
1478         function commentLink() {
1479                 global $wgTitle, $wgOut;
1480
1481                 if ( $wgTitle->getNamespace() == NS_SPECIAL ) {
1482                         return '';
1483                 }
1484
1485                 # __NEWSECTIONLINK___ changes behaviour here
1486                 # If it's present, the link points to this page, otherwise
1487                 # it points to the talk page
1488                 if( $wgTitle->isTalkPage() ) {
1489                         $title =& $wgTitle;
1490                 } elseif( $wgOut->showNewSectionLink() ) {
1491                         $title =& $wgTitle;
1492                 } else {
1493                         $title =& $wgTitle->getTalkPage();
1494                 }
1495
1496                 return $this->makeKnownLinkObj( $title, wfMsg( 'postcomment' ), 'action=edit&section=new' );
1497         }
1498
1499         /* these are used extensively in SkinTemplate, but also some other places */
1500         static function makeMainPageUrl( $urlaction = '' ) {
1501                 $title = Title::newMainPage();
1502                 self::checkTitle( $title, '' );
1503                 return $title->getLocalURL( $urlaction );
1504         }
1505
1506         static function makeSpecialUrl( $name, $urlaction = '' ) {
1507                 $title = SpecialPage::getTitleFor( $name );
1508                 return $title->getLocalURL( $urlaction );
1509         }
1510
1511         static function makeSpecialUrlSubpage( $name, $subpage, $urlaction = '' ) {
1512                 $title = SpecialPage::getSafeTitleFor( $name, $subpage );
1513                 return $title->getLocalURL( $urlaction );
1514         }
1515
1516         static function makeI18nUrl( $name, $urlaction = '' ) {
1517                 $title = Title::newFromText( wfMsgForContent( $name ) );
1518                 self::checkTitle( $title, $name );
1519                 return $title->getLocalURL( $urlaction );
1520         }
1521
1522         static function makeUrl( $name, $urlaction = '' ) {
1523                 $title = Title::newFromText( $name );
1524                 self::checkTitle( $title, $name );
1525                 return $title->getLocalURL( $urlaction );
1526         }
1527
1528         # If url string starts with http, consider as external URL, else
1529         # internal
1530         static function makeInternalOrExternalUrl( $name ) {
1531                 if ( preg_match( '/^(?:' . wfUrlProtocols() . ')/', $name ) ) {
1532                         return $name;
1533                 } else {
1534                         return self::makeUrl( $name );
1535                 }
1536         }
1537
1538         # this can be passed the NS number as defined in Language.php
1539         static function makeNSUrl( $name, $urlaction = '', $namespace = NS_MAIN ) {
1540                 $title = Title::makeTitleSafe( $namespace, $name );
1541                 self::checkTitle( $title, $name );
1542                 return $title->getLocalURL( $urlaction );
1543         }
1544
1545         /* these return an array with the 'href' and boolean 'exists' */
1546         static function makeUrlDetails( $name, $urlaction = '' ) {
1547                 $title = Title::newFromText( $name );
1548                 self::checkTitle( $title, $name );
1549                 return array(
1550                         'href' => $title->getLocalURL( $urlaction ),
1551                         'exists' => $title->getArticleID() != 0 ? true : false
1552                 );
1553         }
1554
1555         /**
1556          * Make URL details where the article exists (or at least it's convenient to think so)
1557          */
1558         static function makeKnownUrlDetails( $name, $urlaction = '' ) {
1559                 $title = Title::newFromText( $name );
1560                 self::checkTitle( $title, $name );
1561                 return array(
1562                         'href' => $title->getLocalURL( $urlaction ),
1563                         'exists' => true
1564                 );
1565         }
1566
1567         # make sure we have some title to operate on
1568         static function checkTitle( &$title, $name ) {
1569                 if( !is_object( $title ) ) {
1570                         $title = Title::newFromText( $name );
1571                         if( !is_object( $title ) ) {
1572                                 $title = Title::newFromText( '--error: link target missing--' );
1573                         }
1574                 }
1575         }
1576
1577         /**
1578          * Build an array that represents the sidebar(s), the navigation bar among them
1579          *
1580          * @return array
1581          * @private
1582          */
1583         function buildSidebar() {
1584                 global $parserMemc, $wgEnableSidebarCache;
1585                 global $wgLang, $wgContLang;
1586
1587                 $fname = 'SkinTemplate::buildSidebar';
1588
1589                 wfProfileIn( $fname );
1590
1591                 $key = wfMemcKey( 'sidebar' );
1592                 $cacheSidebar = $wgEnableSidebarCache &&
1593                         ($wgLang->getCode() == $wgContLang->getCode());
1594
1595                 if ($cacheSidebar) {
1596                         $cachedsidebar = $parserMemc->get( $key );
1597                         if ($cachedsidebar!="") {
1598                                 wfProfileOut($fname);
1599                                 return $cachedsidebar;
1600                         }
1601                 }
1602
1603                 $bar = array();
1604                 $lines = explode( "\n", wfMsgForContent( 'sidebar' ) );
1605                 foreach ($lines as $line) {
1606                         if (strpos($line, '*') !== 0)
1607                                 continue;
1608                         if (strpos($line, '**') !== 0) {
1609                                 $line = trim($line, '* ');
1610                                 $heading = $line;
1611                         } else {
1612                                 if (strpos($line, '|') !== false) { // sanity check
1613                                         $line = explode( '|' , trim($line, '* '), 2 );
1614                                         $link = wfMsgForContent( $line[0] );
1615                                         if ($link == '-')
1616                                                 continue;
1617                                         if (wfEmptyMsg($line[1], $text = wfMsg($line[1])))
1618                                                 $text = $line[1];
1619                                         if (wfEmptyMsg($line[0], $link))
1620                                                 $link = $line[0];
1621
1622                                         if ( preg_match( '/^(?:' . wfUrlProtocols() . ')/', $link ) ) {
1623                                                 $href = $link;
1624                                         } else {
1625                                                 $title = Title::newFromText( $link );
1626                                                 if ( $title ) {
1627                                                         $title = $title->fixSpecialName();
1628                                                         $href = $title->getLocalURL();
1629                                                 } else {
1630                                                         $href = 'INVALID-TITLE';
1631                                                 }
1632                                         }
1633
1634                                         $bar[$heading][] = array(
1635                                                 'text' => $text,
1636                                                 'href' => $href,
1637                                                 'id' => 'n-' . strtr($line[1], ' ', '-'),
1638                                                 'active' => false
1639                                         );
1640                                 } else { continue; }
1641                         }
1642                 }
1643                 if ($cacheSidebar)
1644                         $parserMemc->set( $key, $bar, 86400 );
1645                 wfProfileOut( $fname );
1646                 return $bar;
1647         }
1648 }
1649