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;
 160
 161                 wfProfileIn( __METHOD__ );
 162
 163                 if( false !== $wgFavicon ) {
 164                         $out->addLink( array( 'rel' => 'shortcut icon', 'href' => $wgFavicon ) );
 165                 }
 166
 167                 $names = Language::getLanguageNames();
 168
 169                 # OpenSearch description link
 170                 $out->addLink( array(
 171                         'rel' => 'search',
 172                         'type' => 'application/opensearchdescription+xml',
 173                         'href' => "$wgScriptPath/opensearch_desc.php",
 174                         'title' => "$wgSitename ({$names[$wgLanguageCode]})",
 175                 ));
 176
 177                 $this->addMetadataLinks($out);
 178
 179                 $this->mRevisionId = $out->mRevisionId;
 180
 181                 $this->preloadExistence();
 182
 183                 wfProfileOut( __METHOD__ );
 184         }
 185
 186         /**
 187          * Preload the existence of three commonly-requested pages in a single query
 188          */
 189         function preloadExistence() {
 190                 global $wgUser, $wgTitle;
 191
 192                 // User/talk link
 193                 $titles = array( $wgUser->getUserPage(), $wgUser->getTalkPage() );
 194
 195                 // Other tab link
 196                 if ( $wgTitle->getNamespace() == NS_SPECIAL ) {
 197                         // nothing
 198                 } elseif ( $wgTitle->isTalkPage() ) {
 199                         $titles[] = $wgTitle->getSubjectPage();
 200                 } else {
 201                         $titles[] = $wgTitle->getTalkPage();
 202                 }
 203
 204                 $lb = new LinkBatch( $titles );
 205                 $lb->execute();
 206         }
 207
 208         function addMetadataLinks( &$out ) {
 209                 global $wgTitle, $wgEnableDublinCoreRdf, $wgEnableCreativeCommonsRdf;
 210                 global $wgRightsPage, $wgRightsUrl;
 211
 212                 if( $out->isArticleRelated() ) {
 213                         # note: buggy CC software only reads first "meta" link
 214                         if( $wgEnableCreativeCommonsRdf ) {
 215                                 $out->addMetadataLink( array(
 216                                         'title' => 'Creative Commons',
 217                                         'type' => 'application/rdf+xml',
 218                                         'href' => $wgTitle->getLocalURL( 'action=creativecommons') ) );
 219                         }
 220                         if( $wgEnableDublinCoreRdf ) {
 221                                 $out->addMetadataLink( array(
 222                                         'title' => 'Dublin Core',
 223                                         'type' => 'application/rdf+xml',
 224                                         'href' => $wgTitle->getLocalURL( 'action=dublincore' ) ) );
 225                         }
 226                 }
 227                 $copyright = '';
 228                 if( $wgRightsPage ) {
 229                         $copy = Title::newFromText( $wgRightsPage );
 230                         if( $copy ) {
 231                                 $copyright = $copy->getLocalURL();
 232                         }
 233                 }
 234                 if( !$copyright && $wgRightsUrl ) {
 235                         $copyright = $wgRightsUrl;
 236                 }
 237                 if( $copyright ) {
 238                         $out->addLink( array(
 239                                 'rel' => 'copyright',
 240                                 'href' => $copyright ) );
 241                 }
 242         }
 243
 244         function outputPage( &$out ) {
 245                 global $wgDebugComments;
 246
 247                 wfProfileIn( __METHOD__ );
 248                 $this->initPage( $out );
 249
 250                 $out->out( $out->headElement() );
 251
 252                 $out->out( "\n<body" );
 253                 $ops = $this->getBodyOptions();
 254                 foreach ( $ops as $name => $val ) {
 255                         $out->out( " $name='$val'" );
 256                 }
 257                 $out->out( ">\n" );
 258                 if ( $wgDebugComments ) {
 259                         $out->out( "<!-- Wiki debugging output:\n" .
 260                           $out->mDebugtext . "-->\n" );
 261                 }
 262
 263                 $out->out( $this->beforeContent() );
 264
 265                 $out->out( $out->mBodytext . "\n" );
 266
 267                 $out->out( $this->afterContent() );
 268
 269                 $out->out( $this->bottomScripts() );
 270
 271                 $out->out( $out->reportTime() );
 272
 273                 $out->out( "\n</body></html>" );
 274                 wfProfileOut( __METHOD__ );
 275         }
 276
 277         static function makeVariablesScript( $data ) {
 278                 global $wgJsMimeType;
 279
 280                 $r = "<script type= \"$wgJsMimeType\">/*<![CDATA[*/\n";
 281                 foreach ( $data as $name => $value ) {
 282                         $encValue = Xml::encodeJsVar( $value );
 283                         $r .= "var $name = $encValue;\n";
 284                 }
 285                 $r .= "/*]]>*/</script>\n";
 286
 287                 return $r;
 288         }
 289
 290         /**
 291          * Make a <script> tag containing global variables
 292          * @param array $data Associative array containing one element:
 293          *     skinname => the skin name
 294          * The odd calling convention is for backwards compatibility
 295          */
 296         static function makeGlobalVariablesScript( $data ) {
 297                 global $wgScript, $wgStylePath, $wgUser;
 298                 global $wgArticlePath, $wgScriptPath, $wgServer, $wgContLang, $wgLang;
 299                 global $wgTitle, $wgCanonicalNamespaceNames, $wgOut, $wgArticle;
 300                 global $wgBreakFrames, $wgRequest;
 301                 global $wgUseAjax, $wgAjaxWatch;
 302
 303                 $ns = $wgTitle->getNamespace();
 304                 $nsname = isset( $wgCanonicalNamespaceNames[ $ns ] ) ? $wgCanonicalNamespaceNames[ $ns ] : $wgTitle->getNsText();
 305
 306                 $vars = array(
 307                         'skin' => $data['skinname'],
 308                         'stylepath' => $wgStylePath,
 309                         'wgArticlePath' => $wgArticlePath,
 310                         'wgScriptPath' => $wgScriptPath,
 311                         'wgScript' => $wgScript,
 312                         'wgServer' => $wgServer,
 313                         'wgCanonicalNamespace' => $nsname,
 314                         'wgCanonicalSpecialPageName' => SpecialPage::resolveAlias( $wgTitle->getDBKey() ),
 315                         'wgNamespaceNumber' => $wgTitle->getNamespace(),
 316                         'wgPageName' => $wgTitle->getPrefixedDBKey(),
 317                         'wgTitle' => $wgTitle->getText(),
 318                         'wgAction' => $wgRequest->getText( 'action', 'view' ),
 319                         'wgRestrictionEdit' => $wgTitle->getRestrictions( 'edit' ),
 320                         'wgRestrictionMove' => $wgTitle->getRestrictions( 'move' ),
 321                         'wgArticleId' => $wgTitle->getArticleId(),
 322                         'wgIsArticle' => $wgOut->isArticle(),
 323                         'wgUserName' => $wgUser->isAnon() ? NULL : $wgUser->getName(),
 324                         'wgUserGroups' => $wgUser->isAnon() ? NULL : $wgUser->getEffectiveGroups(),
 325                         'wgUserLanguage' => $wgLang->getCode(),
 326                         'wgContentLanguage' => $wgContLang->getCode(),
 327                         'wgBreakFrames' => $wgBreakFrames,
 328                         'wgCurRevisionId' => isset( $wgArticle ) ? $wgArticle->getLatest() : 0,
 329                 );
 330
 331                 global $wgLivePreview;
 332                 if ( $wgLivePreview && $wgUser->getOption( 'uselivepreview' ) ) {
 333                         $vars['wgLivepreviewMessageLoading'] = wfMsg( 'livepreview-loading' );
 334                         $vars['wgLivepreviewMessageReady']   = wfMsg( 'livepreview-ready' );
 335                         $vars['wgLivepreviewMessageFailed']  = wfMsg( 'livepreview-failed' );
 336                         $vars['wgLivepreviewMessageError']   = wfMsg( 'livepreview-error' );
 337                 }
 338
 339                 if($wgUseAjax && $wgAjaxWatch && $wgUser->isLoggedIn() ) {
 340                         $msgs = (object)array();
 341                         foreach ( array( 'watch', 'unwatch', 'watching', 'unwatching' ) as $msgName ) {
 342                                 $msgs->{$msgName . 'Msg'} = wfMsg( $msgName );
 343                         }
 344                         $vars['wgAjaxWatch'] = $msgs;
 345                 }
 346
 347                 return self::makeVariablesScript( $vars );
 348         }
 349
 350         function getHeadScripts( $allowUserJs ) {
 351                 global $wgStylePath, $wgUser, $wgJsMimeType, $wgStyleVersion;
 352
 353                 $r = self::makeGlobalVariablesScript( array( 'skinname' => $this->getSkinName() ) );
 354
 355                 $r .= "<script type=\"{$wgJsMimeType}\" src=\"{$wgStylePath}/common/wikibits.js?$wgStyleVersion\"></script>\n";
 356                 global $wgUseSiteJs;
 357                 if ($wgUseSiteJs) {
 358                         $jsCache = $wgUser->isLoggedIn() ? '&smaxage=0' : '';
 359                         $r .= "<script type=\"$wgJsMimeType\" src=\"".
 360                                 htmlspecialchars(self::makeUrl('-',
 361                                         "action=raw$jsCache&gen=js&useskin=" .
 362                                         urlencode( $this->getSkinName() ) ) ) .
 363                                 "\"><!-- site js --></script>\n";
 364                 }
 365                 if( $allowUserJs && $wgUser->isLoggedIn() ) {
 366                         $userpage = $wgUser->getUserPage();
 367                         $userjs = htmlspecialchars( self::makeUrl(
 368                                 $userpage->getPrefixedText().'/'.$this->getSkinName().'.js',
 369                                 'action=raw&ctype='.$wgJsMimeType));
 370                         $r .= '<script type="'.$wgJsMimeType.'" src="'.$userjs."\"></script>\n";
 371                 }
 372                 return $r;
 373         }
 374
 375         /**
 376          * To make it harder for someone to slip a user a fake
 377          * user-JavaScript or user-CSS preview, a random token
 378          * is associated with the login session. If it's not
 379          * passed back with the preview request, we won't render
 380          * the code.
 381          *
 382          * @param string $action
 383          * @return bool
 384          * @private
 385          */
 386         function userCanPreview( $action ) {
 387                 global $wgTitle, $wgRequest, $wgUser;
 388
 389                 if( $action != 'submit' )
 390                         return false;
 391                 if( !$wgRequest->wasPosted() )
 392                         return false;
 393                 if( !$wgTitle->userCanEditCssJsSubpage() )
 394                         return false;
 395                 return $wgUser->matchEditToken(
 396                         $wgRequest->getVal( 'wpEditToken' ) );
 397         }
 398
 399         # get the user/site-specific stylesheet, SkinTemplate loads via RawPage.php (settings are cached that way)
 400         function getUserStylesheet() {
 401                 global $wgStylePath, $wgRequest, $wgContLang, $wgSquidMaxage, $wgStyleVersion;
 402                 $sheet = $this->getStylesheet();
 403                 $s = "@import \"$wgStylePath/common/shared.css?$wgStyleVersion\";\n";
 404                 $s .= "@import \"$wgStylePath/common/oldshared.css?$wgStyleVersion\";\n";
 405                 $s .= "@import \"$wgStylePath/$sheet?$wgStyleVersion\";\n";
 406                 if($wgContLang->isRTL()) $s .= "@import \"$wgStylePath/common/common_rtl.css?$wgStyleVersion\";\n";
 407
 408                 $query = "usemsgcache=yes&action=raw&ctype=text/css&smaxage=$wgSquidMaxage";
 409                 $s .= '@import "' . self::makeNSUrl( 'Common.css', $query, NS_MEDIAWIKI ) . "\";\n" .
 410                         '@import "' . self::makeNSUrl( ucfirst( $this->getSkinName() . '.css' ), $query, NS_MEDIAWIKI ) . "\";\n";
 411
 412                 $s .= $this->doGetUserStyles();
 413                 return $s."\n";
 414         }
 415
 416         /**
 417          * This returns MediaWiki:Common.js, and derived classes may add other JS.
 418          * Despite its name, it does *not* return any custom user JS from user
 419          * subpages.  The returned script is sitewide and publicly cacheable and
 420          * therefore must not include anything that varies according to user,
 421          * interface language, etc. (although it may vary by skin).  See
 422          * makeGlobalVariablesScript for things that can vary per page view and are
 423          * not cacheable.
 424          *
 425          * @return string Raw JavaScript to be returned
 426          */
 427         public function getUserJs() {
 428                 wfProfileIn( __METHOD__ );
 429
 430                 global $wgStylePath;
 431                 $s = "/* generated javascript */\n";
 432                 $s .= "var skin = '" . Xml::escapeJsString( $this->getSkinName() ) . "';\n";
 433                 $s .= "var stylepath = '" . Xml::escapeJsString( $wgStylePath ) . "';";
 434                 $s .= "\n\n/* MediaWiki:Common.js */\n";
 435                 $commonJs = wfMsgForContent('common.js');
 436                 if ( !wfEmptyMsg ( 'common.js', $commonJs ) ) {
 437                         $s .= $commonJs;
 438                 }
 439                 wfProfileOut( __METHOD__ );
 440                 return $s;
 441         }
 442
 443         /**
 444          * Return html code that include User stylesheets
 445          */
 446         function getUserStyles() {
 447                 $s = "<style type='text/css'>\n";
 448                 $s .= "/*/*/ /*<![CDATA[*/\n"; # <-- Hide the styles from Netscape 4 without hiding them from IE/Mac
 449                 $s .= $this->getUserStylesheet();
 450                 $s .= "/*]]>*/ /* */\n";
 451                 $s .= "</style>\n";
 452                 return $s;
 453         }
 454
 455         /**
 456          * Some styles that are set by user through the user settings interface.
 457          */
 458         function doGetUserStyles() {
 459                 global $wgUser, $wgUser, $wgRequest, $wgTitle, $wgAllowUserCss;
 460
 461                 $s = '';
 462
 463                 if( $wgAllowUserCss && $wgUser->isLoggedIn() ) { # logged in
 464                         if($wgTitle->isCssSubpage() && $this->userCanPreview( $wgRequest->getText( 'action' ) ) ) {
 465                                 $s .= $wgRequest->getText('wpTextbox1');
 466                         } else {
 467                                 $userpage = $wgUser->getUserPage();
 468                                 $s.= '@import "'.self::makeUrl(
 469                                         $userpage->getPrefixedText().'/'.$this->getSkinName().'.css',
 470                                         'action=raw&ctype=text/css').'";'."\n";
 471                         }
 472                 }
 473
 474                 return $s . $this->reallyDoGetUserStyles();
 475         }
 476
 477         function reallyDoGetUserStyles() {
 478                 global $wgUser;
 479                 $s = '';
 480                 if (($undopt = $wgUser->getOption("underline")) != 2) {
 481                         $underline = $undopt ? 'underline' : 'none';
 482                         $s .= "a { text-decoration: $underline; }\n";
 483                 }
 484                 if( $wgUser->getOption( 'highlightbroken' ) ) {
 485                         $s .= "a.new, #quickbar a.new { color: #CC2200; }\n";
 486                 } else {
 487                         $s .= <<<END
 488 a.new, #quickbar a.new,
 489 a.stub, #quickbar a.stub {
 490         color: inherit;
 491         text-decoration: inherit;
 492 }
 493 a.new:after, #quickbar a.new:after {
 494         content: "?";
 495         color: #CC2200;
 496         text-decoration: $underline;
 497 }
 498 a.stub:after, #quickbar a.stub:after {
 499         content: "!";
 500         color: #772233;
 501         text-decoration: $underline;
 502 }
 503 END;
 504                 }
 505                 if( $wgUser->getOption( 'justify' ) ) {
 506                         $s .= "#article, #bodyContent { text-align: justify; }\n";
 507                 }
 508                 if( !$wgUser->getOption( 'showtoc' ) ) {
 509                         $s .= "#toc { display: none; }\n";
 510                 }
 511                 if( !$wgUser->getOption( 'editsection' ) ) {
 512                         $s .= ".editsection { display: none; }\n";
 513                 }
 514                 return $s;
 515         }
 516
 517         function getBodyOptions() {
 518                 global $wgUser, $wgTitle, $wgOut, $wgRequest, $wgContLang;
 519
 520                 extract( $wgRequest->getValues( 'oldid', 'redirect', 'diff' ) );
 521
 522                 if ( 0 != $wgTitle->getNamespace() ) {
 523                         $a = array( 'bgcolor' => '#ffffec' );
 524                 }
 525                 else $a = array( 'bgcolor' => '#FFFFFF' );
 526                 if($wgOut->isArticle() && $wgUser->getOption('editondblclick') &&
 527                   $wgTitle->userCan( 'edit' ) ) {
 528                         $s = $wgTitle->getFullURL( $this->editUrlOptions() );
 529                         $s = 'document.location = "' .wfEscapeJSString( $s ) .'";';
 530                         $a += array ('ondblclick' => $s);
 531
 532                 }
 533                 $a['onload'] = $wgOut->getOnloadHandler();
 534                 if( $wgUser->getOption( 'editsectiononrightclick' ) ) {
 535                         if( $a['onload'] != '' ) {
 536                                 $a['onload'] .= ';';
 537                         }
 538                         $a['onload'] .= 'setupRightClickEdit()';
 539                 }
 540                 $a['class'] = 'ns-'.$wgTitle->getNamespace().' '.($wgContLang->isRTL() ? "rtl" : "ltr").
 541                 ' '.Sanitizer::escapeClass( 'page-'.$wgTitle->getPrefixedText() );
 542                 return $a;
 543         }
 544
 545         /**
 546          * URL to the logo
 547          */
 548         function getLogo() {
 549                 global $wgLogo;
 550                 return $wgLogo;
 551         }
 552
 553         /**
 554          * This will be called immediately after the <body> tag.  Split into
 555          * two functions to make it easier to subclass.
 556          */
 557         function beforeContent() {
 558                 return $this->doBeforeContent();
 559         }
 560
 561         function doBeforeContent() {
 562                 global $wgContLang;
 563                 $fname = 'Skin::doBeforeContent';
 564                 wfProfileIn( $fname );
 565
 566                 $s = '';
 567                 $qb = $this->qbSetting();
 568
 569                 if( $langlinks = $this->otherLanguages() ) {
 570                         $rows = 2;
 571                         $borderhack = '';
 572                 } else {
 573                         $rows = 1;
 574                         $langlinks = false;
 575                         $borderhack = 'class="top"';
 576                 }
 577
 578                 $s .= "\n<div id='content'>\n<div id='topbar'>\n" .
 579                   "<table border='0' cellspacing='0' width='98%'>\n<tr>\n";
 580
 581                 $shove = ($qb != 0);
 582                 $left = ($qb == 1 || $qb == 3);
 583                 if($wgContLang->isRTL()) $left = !$left;
 584
 585                 if ( !$shove ) {
 586                         $s .= "<td class='top' align='left' valign='top' rowspan='{$rows}'>\n" .
 587                           $this->logoText() . '</td>';
 588                 } elseif( $left ) {
 589                         $s .= $this->getQuickbarCompensator( $rows );
 590                 }
 591                 $l = $wgContLang->isRTL() ? 'right' : 'left';
 592                 $s .= "<td {$borderhack} align='$l' valign='top'>\n";
 593
 594                 $s .= $this->topLinks() ;
 595                 $s .= "<p class='subtitle'>" . $this->pageTitleLinks() . "</p>\n";
 596
 597                 $r = $wgContLang->isRTL() ? "left" : "right";
 598                 $s .= "</td>\n<td {$borderhack} valign='top' align='$r' nowrap='nowrap'>";
 599                 $s .= $this->nameAndLogin();
 600                 $s .= "\n<br />" . $this->searchForm() . "</td>";
 601
 602                 if ( $langlinks ) {
 603                         $s .= "</tr>\n<tr>\n<td class='top' colspan=\"2\">$langlinks</td>\n";
 604                 }
 605
 606                 if ( $shove && !$left ) { # Right
 607                         $s .= $this->getQuickbarCompensator( $rows );
 608                 }
 609                 $s .= "</tr>\n</table>\n</div>\n";
 610                 $s .= "\n<div id='article'>\n";
 611
 612                 $notice = wfGetSiteNotice();
 613                 if( $notice ) {
 614                         $s .= "\n<div id='siteNotice'>$notice</div>\n";
 615                 }
 616                 $s .= $this->pageTitle();
 617                 $s .= $this->pageSubtitle() ;
 618                 $s .= $this->getCategories();
 619                 wfProfileOut( $fname );
 620                 return $s;
 621         }
 622
 623
 624         function getCategoryLinks () {
 625                 global $wgOut, $wgTitle, $wgUseCategoryBrowser;
 626                 global $wgContLang;
 627
 628                 if( count( $wgOut->mCategoryLinks ) == 0 ) return '';
 629
 630                 # Separator
 631                 $sep = wfMsgHtml( 'catseparator' );
 632
 633                 // Use Unicode bidi embedding override characters,
 634                 // to make sure links don't smash each other up in ugly ways.
 635                 $dir = $wgContLang->isRTL() ? 'rtl' : 'ltr';
 636                 $embed = "<span dir='$dir'>";
 637                 $pop = '</span>';
 638                 $t = $embed . implode ( "{$pop} {$sep} {$embed}" , $wgOut->mCategoryLinks ) . $pop;
 639
 640                 $msg = wfMsgExt( 'pagecategories', array( 'parsemag', 'escape' ), count( $wgOut->mCategoryLinks ) );
 641                 $s = $this->makeLinkObj( Title::newFromText( wfMsgForContent('pagecategorieslink') ), $msg )
 642                         . ': ' . $t;
 643
 644                 # optional 'dmoz-like' category browser. Will be shown under the list
 645                 # of categories an article belong to
 646                 if($wgUseCategoryBrowser) {
 647                         $s .= '<br /><hr />';
 648
 649                         # get a big array of the parents tree
 650                         $parenttree = $wgTitle->getParentCategoryTree();
 651                         # Skin object passed by reference cause it can not be
 652                         # accessed under the method subfunction drawCategoryBrowser
 653                         $tempout = explode("\n", Skin::drawCategoryBrowser($parenttree, $this) );
 654                         # Clean out bogus first entry and sort them
 655                         unset($tempout[0]);
 656                         asort($tempout);
 657                         # Output one per line
 658                         $s .= implode("<br />\n", $tempout);
 659                 }
 660
 661                 return $s;
 662         }
 663
 664         /** Render the array as a serie of links.
 665          * @param $tree Array: categories tree returned by Title::getParentCategoryTree
 666          * @param &skin Object: skin passed by reference
 667          * @return String separated by &gt;, terminate with "\n"
 668          */
 669         function drawCategoryBrowser($tree, &$skin) {
 670                 $return = '';
 671                 foreach ($tree as $element => $parent) {
 672                         if (empty($parent)) {
 673                                 # element start a new list
 674                                 $return .= "\n";
 675                         } else {
 676                                 # grab the others elements
 677                                 $return .= Skin::drawCategoryBrowser($parent, $skin) . ' &gt; ';
 678                         }
 679                         # add our current element to the list
 680                         $eltitle = Title::NewFromText($element);
 681                         $return .=  $skin->makeLinkObj( $eltitle, $eltitle->getText() ) ;
 682                 }
 683                 return $return;
 684         }
 685
 686         function getCategories() {
 687                 $catlinks=$this->getCategoryLinks();
 688                 if(!empty($catlinks)) {
 689                         return "<p class='catlinks'>{$catlinks}</p>";
 690                 }
 691         }
 692
 693         function getQuickbarCompensator( $rows = 1 ) {
 694                 return "<td width='152' rowspan='{$rows}'>&nbsp;</td>";
 695         }
 696
 697         /**
 698          * This gets called shortly before the \</body\> tag.
 699          * @return String HTML to be put before \</body\>
 700          */
 701         function afterContent() {
 702                 $printfooter = "<div class=\"printfooter\">\n" . $this->printFooter() . "</div>\n";
 703                 return $printfooter . $this->doAfterContent();
 704         }
 705
 706         /**
 707          * This gets called shortly before the \</body\> tag.
 708          * @return String HTML-wrapped JS code to be put before \</body\>
 709          */
 710         function bottomScripts() {
 711                 global $wgJsMimeType;
 712                 $bottomScriptText = "\n\t\t<script type=\"$wgJsMimeType\">if (window.runOnloadHook) runOnloadHook();</script>\n";
 713                 wfRunHooks( 'SkinAfterBottomScripts', array( $this, &$bottomScriptText ) );
 714                 return $bottomScriptText;
 715         }
 716
 717         /** @return string Retrievied from HTML text */
 718         function printSource() {
 719                 global $wgTitle;
 720                 $url = htmlspecialchars( $wgTitle->getFullURL() );
 721                 return wfMsg( 'retrievedfrom', '<a href="'.$url.'">'.$url.'</a>' );
 722         }
 723
 724         function printFooter() {
 725                 return "<p>" .  $this->printSource() .
 726                         "</p>\n\n<p>" . $this->pageStats() . "</p>\n";
 727         }
 728
 729         /** overloaded by derived classes */
 730         function doAfterContent() { }
 731
 732         function pageTitleLinks() {
 733                 global $wgOut, $wgTitle, $wgUser, $wgRequest;
 734
 735                 $oldid = $wgRequest->getVal( 'oldid' );
 736                 $diff = $wgRequest->getVal( 'diff' );
 737                 $action = $wgRequest->getText( 'action' );
 738
 739                 $s = $this->printableLink();
 740                 $disclaimer = $this->disclaimerLink(); # may be empty
 741                 if( $disclaimer ) {
 742                         $s .= ' | ' . $disclaimer;
 743                 }
 744                 $privacy = $this->privacyLink(); # may be empty too
 745                 if( $privacy ) {
 746                         $s .= ' | ' . $privacy;
 747                 }
 748
 749                 if ( $wgOut->isArticleRelated() ) {
 750                         if ( $wgTitle->getNamespace() == NS_IMAGE ) {
 751                                 $name = $wgTitle->getDBkey();
 752                                 $image = wfFindFile( $wgTitle );
 753                                 if( $image ) {
 754                                         $link = htmlspecialchars( $image->getURL() );
 755                                         $style = $this->getInternalLinkAttributes( $link, $name );
 756                                         $s .= " | <a href=\"{$link}\"{$style}>{$name}</a>";
 757                                 }
 758                         }
 759                 }
 760                 if ( 'history' == $action || isset( $diff ) || isset( $oldid ) ) {
 761                         $s .= ' | ' . $this->makeKnownLinkObj( $wgTitle,
 762                                         wfMsg( 'currentrev' ) );
 763                 }
 764
 765                 if ( $wgUser->getNewtalk() ) {
 766                         # do not show "You have new messages" text when we are viewing our
 767                         # own talk page
 768                         if( !$wgTitle->equals( $wgUser->getTalkPage() ) ) {
 769                                 $tl = $this->makeKnownLinkObj( $wgUser->getTalkPage(), wfMsgHtml( 'newmessageslink' ), 'redirect=no' );
 770                                 $dl = $this->makeKnownLinkObj( $wgUser->getTalkPage(), wfMsgHtml( 'newmessagesdifflink' ), 'diff=cur' );
 771                                 $s.= ' | <strong>'. wfMsg( 'youhavenewmessages', $tl, $dl ) . '</strong>';
 772                                 # disable caching
 773                                 $wgOut->setSquidMaxage(0);
 774                                 $wgOut->enableClientCache(false);
 775                         }
 776                 }
 777
 778                 $undelete = $this->getUndeleteLink();
 779                 if( !empty( $undelete ) ) {
 780                         $s .= ' | '.$undelete;
 781                 }
 782                 return $s;
 783         }
 784
 785         function getUndeleteLink() {
 786                 global $wgUser, $wgTitle, $wgContLang, $action;
 787                 if(     $wgUser->isAllowed( 'deletedhistory' ) &&
 788                         (($wgTitle->getArticleId() == 0) || ($action == "history")) &&
 789                         ($n = $wgTitle->isDeleted() ) )
 790                 {
 791                         if ( $wgUser->isAllowed( 'delete' ) ) {
 792                                 $msg = 'thisisdeleted';
 793                         } else {
 794                                 $msg = 'viewdeleted';
 795                         }
 796                         return wfMsg( $msg,
 797                                 $this->makeKnownLinkObj(
 798                                         SpecialPage::getTitleFor( 'Undelete', $wgTitle->getPrefixedDBkey() ),
 799                                         wfMsgExt( 'restorelink', array( 'parsemag', 'escape' ), $n ) ) );
 800                 }
 801                 return '';
 802         }
 803
 804         function printableLink() {
 805                 global $wgOut, $wgFeedClasses, $wgRequest;
 806
 807                 $printurl = $wgRequest->escapeAppendQuery( 'printable=yes' );
 808
 809                 $s = "<a href=\"$printurl\">" . wfMsg( 'printableversion' ) . '</a>';
 810                 if( $wgOut->isSyndicated() ) {
 811                         foreach( $wgFeedClasses as $format => $class ) {
 812                                 $feedurl = $wgRequest->escapeAppendQuery( "feed=$format" );
 813                                 $s .= " | <a href=\"$feedurl\">{$format}</a>";
 814                         }
 815                 }
 816                 return $s;
 817         }
 818
 819         function pageTitle() {
 820                 global $wgOut;
 821                 $s = '<h1 class="pagetitle">' . htmlspecialchars( $wgOut->getPageTitle() ) . '</h1>';
 822                 return $s;
 823         }
 824
 825         function pageSubtitle() {
 826                 global $wgOut;
 827
 828                 $sub = $wgOut->getSubtitle();
 829                 if ( '' == $sub ) {
 830                         global $wgExtraSubtitle;
 831                         $sub = wfMsg( 'tagline' ) . $wgExtraSubtitle;
 832                 }
 833                 $subpages = $this->subPageSubtitle();
 834                 $sub .= !empty($subpages)?"</p><p class='subpages'>$subpages":'';
 835                 $s = "<p class='subtitle'>{$sub}</p>\n";
 836                 return $s;
 837         }
 838
 839         function subPageSubtitle() {
 840                 global $wgOut,$wgTitle,$wgNamespacesWithSubpages;
 841                 $subpages = '';
 842                 if($wgOut->isArticle() && !empty($wgNamespacesWithSubpages[$wgTitle->getNamespace()])) {
 843                         $ptext=$wgTitle->getPrefixedText();
 844                         if(preg_match('/\//',$ptext)) {
 845                                 $links = explode('/',$ptext);
 846                                 $c = 0;
 847                                 $growinglink = '';
 848                                 foreach($links as $link) {
 849                                         $c++;
 850                                         if ($c<count($links)) {
 851                                                 $growinglink .= $link;
 852                                                 $getlink = $this->makeLink( $growinglink, htmlspecialchars( $link ) );
 853                                                 if(preg_match('/class="new"/i',$getlink)) { break; } # this is a hack, but it saves time
 854                                                 if ($c>1) {
 855                                                         $subpages .= ' | ';
 856                                                 } else  {
 857                                                         $subpages .= '&lt; ';
 858                                                 }
 859                                                 $subpages .= $getlink;
 860                                                 $growinglink .= '/';
 861                                         }
 862                                 }
 863                         }
 864                 }
 865                 return $subpages;
 866         }
 867
 868         /**
 869          * Returns true if the IP should be shown in the header
 870          */
 871         function showIPinHeader() {
 872                 global $wgShowIPinHeader;
 873                 return $wgShowIPinHeader && session_id() != '';
 874         }
 875
 876         function nameAndLogin() {
 877                 global $wgUser, $wgTitle, $wgLang, $wgContLang;
 878
 879                 $lo = $wgContLang->specialPage( 'Userlogout' );
 880
 881                 $s = '';
 882                 if ( $wgUser->isAnon() ) {
 883                         if( $this->showIPinHeader() ) {
 884                                 $n = wfGetIP();
 885
 886                                 $tl = $this->makeKnownLinkObj( $wgUser->getTalkPage(),
 887                                   $wgLang->getNsText( NS_TALK ) );
 888
 889                                 $s .= $n . ' ('.$tl.')';
 890                         } else {
 891                                 $s .= wfMsg('notloggedin');
 892                         }
 893
 894                         $rt = $wgTitle->getPrefixedURL();
 895                         if ( 0 == strcasecmp( urlencode( $lo ), $rt ) ) {
 896                                 $q = '';
 897                         } else { $q = "returnto={$rt}"; }
 898
 899                         $s .= "\n<br />" . $this->makeKnownLinkObj(
 900                                 SpecialPage::getTitleFor( 'Userlogin' ),
 901                                 wfMsg( 'login' ), $q );
 902                 } else {
 903                         $n = $wgUser->getName();
 904                         $rt = $wgTitle->getPrefixedURL();
 905                         $tl = $this->makeKnownLinkObj( $wgUser->getTalkPage(),
 906                           $wgLang->getNsText( NS_TALK ) );
 907
 908                         $tl = " ({$tl})";
 909
 910                         $s .= $this->makeKnownLinkObj( $wgUser->getUserPage(),
 911                           $n ) . "{$tl}<br />" .
 912                           $this->makeKnownLinkObj( SpecialPage::getTitleFor( 'Userlogout' ), wfMsg( 'logout' ),
 913                           "returnto={$rt}" ) . ' | ' .
 914                           $this->specialLink( 'preferences' );
 915                 }
 916                 $s .= ' | ' . $this->makeKnownLink( wfMsgForContent( 'helppage' ),
 917                   wfMsg( 'help' ) );
 918
 919                 return $s;
 920         }
 921
 922         function getSearchLink() {
 923                 $searchPage = SpecialPage::getTitleFor( 'Search' );
 924                 return $searchPage->getLocalURL();
 925         }
 926
 927         function escapeSearchLink() {
 928                 return htmlspecialchars( $this->getSearchLink() );
 929         }
 930
 931         function searchForm() {
 932                 global $wgRequest;
 933                 $search = $wgRequest->getText( 'search' );
 934
 935                 $s = '<form name="search" class="inline" method="post" action="'
 936                   . $this->escapeSearchLink() . "\">\n"
 937                   . '<input type="text" name="search" size="19" value="'
 938                   . htmlspecialchars(substr($search,0,256)) . "\" />\n"
 939                   . '<input type="submit" name="go" value="' . wfMsg ('searcharticle') . '" />&nbsp;'
 940                   . '<input type="submit" name="fulltext" value="' . wfMsg ('searchbutton') . "\" />\n</form>";
 941
 942                 return $s;
 943         }
 944
 945         function topLinks() {
 946                 global $wgOut;
 947                 $sep = " |\n";
 948
 949                 $s = $this->mainPageLink() . $sep
 950                   . $this->specialLink( 'recentchanges' );
 951
 952                 if ( $wgOut->isArticleRelated() ) {
 953                         $s .=  $sep . $this->editThisPage()
 954                           . $sep . $this->historyLink();
 955                 }
 956                 # Many people don't like this dropdown box
 957                 #$s .= $sep . $this->specialPagesList();
 958
 959                 $s .= $this->variantLinks();
 960
 961                 $s .= $this->extensionTabLinks();
 962
 963                 return $s;
 964         }
 965
 966         /**
 967          * Compatibility for extensions adding functionality through tabs.
 968          * Eventually these old skins should be replaced with SkinTemplate-based
 969          * versions, sigh...
 970          * @return string
 971          */
 972         function extensionTabLinks() {
 973                 $tabs = array();
 974                 $s = '';
 975                 wfRunHooks( 'SkinTemplateTabs', array( $this, &$tabs ) );
 976                 foreach( $tabs as $tab ) {
 977                         $s .= ' | ' . Xml::element( 'a',
 978                                 array( 'href' => $tab['href'] ),
 979                                 $tab['text'] );
 980                 }
 981                 return $s;
 982         }
 983
 984         /**
 985          * Language/charset variant links for classic-style skins
 986          * @return string
 987          */
 988         function variantLinks() {
 989                 $s = '';
 990                 /* show links to different language variants */
 991                 global $wgDisableLangConversion, $wgContLang, $wgTitle;
 992                 $variants = $wgContLang->getVariants();
 993                 if( !$wgDisableLangConversion && sizeof( $variants ) > 1 ) {
 994                         foreach( $variants as $code ) {
 995                                 $varname = $wgContLang->getVariantname( $code );
 996                                 if( $varname == 'disable' )
 997                                         continue;
 998                                 $s .= ' | <a href="' . $wgTitle->escapeLocalUrl( 'variant=' . $code ) . '">' . htmlspecialchars( $varname ) . '</a>';
 999                         }
1000                 }
1001                 return $s;
1002         }
1003
1004         function bottomLinks() {
1005                 global $wgOut, $wgUser, $wgTitle, $wgUseTrackbacks;
1006                 $sep = " |\n";
1007
1008                 $s = '';
1009                 if ( $wgOut->isArticleRelated() ) {
1010                         $s .= '<strong>' . $this->editThisPage() . '</strong>';
1011                         if ( $wgUser->isLoggedIn() ) {
1012                                 $s .= $sep . $this->watchThisPage();
1013                         }
1014                         $s .= $sep . $this->talkLink()
1015                           . $sep . $this->historyLink()
1016                           . $sep . $this->whatLinksHere()
1017                           . $sep . $this->watchPageLinksLink();
1018
1019                         if ($wgUseTrackbacks)
1020                                 $s .= $sep . $this->trackbackLink();
1021
1022                         if ( $wgTitle->getNamespace() == NS_USER
1023                             || $wgTitle->getNamespace() == NS_USER_TALK )
1024
1025                         {
1026                                 $id=User::idFromName($wgTitle->getText());
1027                                 $ip=User::isIP($wgTitle->getText());
1028
1029                                 if($id || $ip) { # both anons and non-anons have contri list
1030                                         $s .= $sep . $this->userContribsLink();
1031                                 }
1032                                 if( $this->showEmailUser( $id ) ) {
1033                                         $s .= $sep . $this->emailUserLink();
1034                                 }
1035                         }
1036                         if ( $wgTitle->getArticleId() ) {
1037                                 $s .= "\n<br />";
1038                                 if($wgUser->isAllowed('delete')) { $s .= $this->deleteThisPage(); }
1039                                 if($wgUser->isAllowed('protect')) { $s .= $sep . $this->protectThisPage(); }
1040                                 if($wgUser->isAllowed('move')) { $s .= $sep . $this->moveThisPage(); }
1041                         }
1042                         $s .= "<br />\n" . $this->otherLanguages();
1043                 }
1044                 return $s;
1045         }
1046
1047         function pageStats() {
1048                 global $wgOut, $wgLang, $wgArticle, $wgRequest, $wgUser;
1049                 global $wgDisableCounters, $wgMaxCredits, $wgShowCreditsIfMax, $wgTitle, $wgPageShowWatchingUsers;
1050
1051                 $oldid = $wgRequest->getVal( 'oldid' );
1052                 $diff = $wgRequest->getVal( 'diff' );
1053                 if ( ! $wgOut->isArticle() ) { return ''; }
1054                 if ( isset( $oldid ) || isset( $diff ) ) { return ''; }
1055                 if ( 0 == $wgArticle->getID() ) { return ''; }
1056
1057                 $s = '';
1058                 if ( !$wgDisableCounters ) {
1059                         $count = $wgLang->formatNum( $wgArticle->getCount() );
1060                         if ( $count ) {
1061                                 $s = wfMsgExt( 'viewcount', array( 'parseinline' ), $count );
1062                         }
1063                 }
1064
1065                 if (isset($wgMaxCredits) && $wgMaxCredits != 0) {
1066                     require_once('Credits.php');
1067                     $s .= ' ' . getCredits($wgArticle, $wgMaxCredits, $wgShowCreditsIfMax);
1068                 } else {
1069                     $s .= $this->lastModified();
1070                 }
1071
1072                 if ($wgPageShowWatchingUsers && $wgUser->getOption( 'shownumberswatching' )) {
1073                         $dbr = wfGetDB( DB_SLAVE );
1074                         $watchlist = $dbr->tableName( 'watchlist' );
1075                         $sql = "SELECT COUNT(*) AS n FROM $watchlist
1076                                 WHERE wl_title='" . $dbr->strencode($wgTitle->getDBKey()) .
1077                                 "' AND  wl_namespace=" . $wgTitle->getNamespace() ;
1078                         $res = $dbr->query( $sql, 'Skin::pageStats');
1079                         $x = $dbr->fetchObject( $res );
1080                         $s .= ' ' . wfMsg('number_of_watching_users_pageview', $x->n );
1081                 }
1082
1083                 return $s . ' ' .  $this->getCopyright();
1084         }
1085
1086         function getCopyright( $type = 'detect' ) {
1087                 global $wgRightsPage, $wgRightsUrl, $wgRightsText, $wgRequest;
1088
1089                 if ( $type == 'detect' ) {
1090                         $oldid = $wgRequest->getVal( 'oldid' );
1091                         $diff = $wgRequest->getVal( 'diff' );
1092
1093                         if ( !is_null( $oldid ) && is_null( $diff ) && wfMsgForContent( 'history_copyright' ) !== '-' ) {
1094                                 $type = 'history';
1095                         } else {
1096                                 $type = 'normal';
1097                         }
1098                 }
1099
1100                 if ( $type == 'history' ) {
1101                         $msg = 'history_copyright';
1102                 } else {
1103                         $msg = 'copyright';
1104                 }
1105
1106                 $out = '';
1107                 if( $wgRightsPage ) {
1108                         $link = $this->makeKnownLink( $wgRightsPage, $wgRightsText );
1109                 } elseif( $wgRightsUrl ) {
1110                         $link = $this->makeExternalLink( $wgRightsUrl, $wgRightsText );
1111                 } else {
1112                         # Give up now
1113                         return $out;
1114                 }
1115                 $out .= wfMsgForContent( $msg, $link );
1116                 return $out;
1117         }
1118
1119         function getCopyrightIcon() {
1120                 global $wgRightsUrl, $wgRightsText, $wgRightsIcon, $wgCopyrightIcon;
1121                 $out = '';
1122                 if ( isset( $wgCopyrightIcon ) && $wgCopyrightIcon ) {
1123                         $out = $wgCopyrightIcon;
1124                 } else if ( $wgRightsIcon ) {
1125                         $icon = htmlspecialchars( $wgRightsIcon );
1126                         if ( $wgRightsUrl ) {
1127                                 $url = htmlspecialchars( $wgRightsUrl );
1128                                 $out .= '<a href="'.$url.'">';
1129                         }
1130                         $text = htmlspecialchars( $wgRightsText );
1131                         $out .= "<img src=\"$icon\" alt='$text' />";
1132                         if ( $wgRightsUrl ) {
1133                                 $out .= '</a>';
1134                         }
1135                 }
1136                 return $out;
1137         }
1138
1139         function getPoweredBy() {
1140                 global $wgStylePath;
1141                 $url = htmlspecialchars( "$wgStylePath/common/images/poweredby_mediawiki_88x31.png" );
1142                 $img = '<a href="http://www.mediawiki.org/"><img src="'.$url.'" alt="Powered by MediaWiki" /></a>';
1143                 return $img;
1144         }
1145
1146         function lastModified() {
1147                 global $wgLang, $wgArticle, $wgLoadBalancer;
1148
1149                 $timestamp = $wgArticle->getTimestamp();
1150                 if ( $timestamp ) {
1151                         $d = $wgLang->date( $timestamp, true );
1152                         $t = $wgLang->time( $timestamp, true );
1153                         $s = ' ' . wfMsg( 'lastmodifiedat', $d, $t );
1154                 } else {
1155                         $s = '';
1156                 }
1157                 if ( $wgLoadBalancer->getLaggedSlaveMode() ) {
1158                         $s .= ' <strong>' . wfMsg( 'laggedslavemode' ) . '</strong>';
1159                 }
1160                 return $s;
1161         }
1162
1163         function logoText( $align = '' ) {
1164                 if ( '' != $align ) { $a = " align='{$align}'"; }
1165                 else { $a = ''; }
1166
1167                 $mp = wfMsg( 'mainpage' );
1168                 $mptitle = Title::newMainPage();
1169                 $url = ( is_object($mptitle) ? $mptitle->escapeLocalURL() : '' );
1170
1171                 $logourl = $this->getLogo();
1172                 $s = "<a href='{$url}'><img{$a} src='{$logourl}' alt='[{$mp}]' /></a>";
1173                 return $s;
1174         }
1175
1176         /**
1177          * show a drop-down box of special pages
1178          */
1179         function specialPagesList() {
1180                 global $wgUser, $wgContLang, $wgServer, $wgRedirectScript;
1181                 $pages = array_merge( SpecialPage::getRegularPages(), SpecialPage::getRestrictedPages() );
1182                 foreach ( $pages as $name => $page ) {
1183                         $pages[$name] = $page->getDescription();
1184                 }
1185
1186                 $go = wfMsg( 'go' );
1187                 $sp = wfMsg( 'specialpages' );
1188                 $spp = $wgContLang->specialPage( 'Specialpages' );
1189
1190                 $s = '<form id="specialpages" method="get" class="inline" ' .
1191                   'action="' . htmlspecialchars( "{$wgServer}{$wgRedirectScript}" ) . "\">\n";
1192                 $s .= "<select name=\"wpDropdown\">\n";
1193                 $s .= "<option value=\"{$spp}\">{$sp}</option>\n";
1194
1195
1196                 foreach ( $pages as $name => $desc ) {
1197                         $p = $wgContLang->specialPage( $name );
1198                         $s .= "<option value=\"{$p}\">{$desc}</option>\n";
1199                 }
1200                 $s .= "</select>\n";
1201                 $s .= "<input type='submit' value=\"{$go}\" name='redirect' />\n";
1202                 $s .= "</form>\n";
1203                 return $s;
1204         }
1205
1206         function mainPageLink() {
1207                 $s = $this->makeKnownLinkObj( Title::newMainPage(), wfMsg( 'mainpage' ) );
1208                 return $s;
1209         }
1210
1211         function copyrightLink() {
1212                 $s = $this->makeKnownLink( wfMsgForContent( 'copyrightpage' ),
1213                   wfMsg( 'copyrightpagename' ) );
1214                 return $s;
1215         }
1216
1217         private function footerLink ( $desc, $page ) {
1218                 // if the link description has been set to "-" in the default language,
1219                 if ( wfMsgForContent( $desc )  == '-') {
1220                         // then it is disabled, for all languages.
1221                         return '';
1222                 } else {
1223                         // Otherwise, we display the link for the user, described in their
1224                         // language (which may or may not be the same as the default language),
1225                         // but we make the link target be the one site-wide page.
1226                         return $this->makeKnownLink( wfMsgForContent( $page ), wfMsg( $desc ) );
1227                 }
1228         }
1229
1230         function privacyLink() {
1231                 return $this->footerLink( 'privacy', 'privacypage' );
1232         }
1233
1234         function aboutLink() {
1235                 return $this->footerLink( 'aboutsite', 'aboutpage' );
1236         }
1237
1238         function disclaimerLink() {
1239                 return $this->footerLink( 'disclaimers', 'disclaimerpage' );
1240         }
1241
1242         function editThisPage() {
1243                 global $wgOut, $wgTitle;
1244
1245                 if ( ! $wgOut->isArticleRelated() ) {
1246                         $s = wfMsg( 'protectedpage' );
1247                 } else {
1248                         if ( $wgTitle->userCan( 'edit' ) ) {
1249                                 $t = wfMsg( 'editthispage' );
1250                         } else {
1251                                 $t = wfMsg( 'viewsource' );
1252                         }
1253
1254                         $s = $this->makeKnownLinkObj( $wgTitle, $t, $this->editUrlOptions() );
1255                 }
1256                 return $s;
1257         }
1258
1259         /**
1260          * Return URL options for the 'edit page' link.
1261          * This may include an 'oldid' specifier, if the current page view is such.
1262          *
1263          * @return string
1264          * @private
1265          */
1266         function editUrlOptions() {
1267                 global $wgArticle;
1268
1269                 if( $this->mRevisionId && ! $wgArticle->isCurrent() ) {
1270                         return "action=edit&oldid=" . intval( $this->mRevisionId );
1271                 } else {
1272                         return "action=edit";
1273                 }
1274         }
1275
1276         function deleteThisPage() {
1277                 global $wgUser, $wgTitle, $wgRequest;
1278
1279                 $diff = $wgRequest->getVal( 'diff' );
1280                 if ( $wgTitle->getArticleId() && ( ! $diff ) && $wgUser->isAllowed('delete') ) {
1281                         $t = wfMsg( 'deletethispage' );
1282
1283                         $s = $this->makeKnownLinkObj( $wgTitle, $t, 'action=delete' );
1284                 } else {
1285                         $s = '';
1286                 }
1287                 return $s;
1288         }
1289
1290         function protectThisPage() {
1291                 global $wgUser, $wgTitle, $wgRequest;
1292
1293                 $diff = $wgRequest->getVal( 'diff' );
1294                 if ( $wgTitle->getArticleId() && ( ! $diff ) && $wgUser->isAllowed('protect') ) {
1295                         if ( $wgTitle->isProtected() ) {
1296                                 $t = wfMsg( 'unprotectthispage' );
1297                                 $q = 'action=unprotect';
1298                         } else {
1299                                 $t = wfMsg( 'protectthispage' );
1300                                 $q = 'action=protect';
1301                         }
1302                         $s = $this->makeKnownLinkObj( $wgTitle, $t, $q );
1303                 } else {
1304                         $s = '';
1305                 }
1306                 return $s;
1307         }
1308
1309         function watchThisPage() {
1310                 global $wgOut, $wgTitle;
1311                 ++$this->mWatchLinkNum;
1312
1313                 if ( $wgOut->isArticleRelated() ) {
1314                         if ( $wgTitle->userIsWatching() ) {
1315                                 $t = wfMsg( 'unwatchthispage' );
1316                                 $q = 'action=unwatch';
1317                                 $id = "mw-unwatch-link".$this->mWatchLinkNum;
1318                         } else {
1319                                 $t = wfMsg( 'watchthispage' );
1320                                 $q = 'action=watch';
1321                                 $id = 'mw-watch-link'.$this->mWatchLinkNum;
1322                         }
1323                         $s = $this->makeKnownLinkObj( $wgTitle, $t, $q, '', '', " id=\"$id\"" );
1324                 } else {
1325                         $s = wfMsg( 'notanarticle' );
1326                 }
1327                 return $s;
1328         }
1329
1330         function moveThisPage() {
1331                 global $wgTitle;
1332
1333                 if ( $wgTitle->userCan( 'move' ) ) {
1334                         return $this->makeKnownLinkObj( SpecialPage::getTitleFor( 'Movepage' ),
1335                           wfMsg( 'movethispage' ), 'target=' . $wgTitle->getPrefixedURL() );
1336                 } else {
1337                         // no message if page is protected - would be redundant
1338                         return '';
1339                 }
1340         }
1341
1342         function historyLink() {
1343                 global $wgTitle;
1344
1345                 return $this->makeKnownLinkObj( $wgTitle,
1346                   wfMsg( 'history' ), 'action=history' );
1347         }
1348
1349         function whatLinksHere() {
1350                 global $wgTitle;
1351
1352                 return $this->makeKnownLinkObj(
1353                         SpecialPage::getTitleFor( 'Whatlinkshere', $wgTitle->getPrefixedDBkey() ),
1354                         wfMsg( 'whatlinkshere' ) );
1355         }
1356
1357         function userContribsLink() {
1358                 global $wgTitle;
1359
1360                 return $this->makeKnownLinkObj(
1361                         SpecialPage::getTitleFor( 'Contributions', $wgTitle->getDBkey() ),
1362                         wfMsg( 'contributions' ) );
1363         }
1364
1365         function showEmailUser( $id ) {
1366                 global $wgEnableEmail, $wgEnableUserEmail, $wgUser;
1367                 return $wgEnableEmail &&
1368                        $wgEnableUserEmail &&
1369                        $wgUser->isLoggedIn() && # show only to signed in users
1370                        0 != $id; # we can only email to non-anons ..
1371 #                      '' != $id->getEmail() && # who must have an email address stored ..
1372 #                      0 != $id->getEmailauthenticationtimestamp() && # .. which is authenticated
1373 #                      1 != $wgUser->getOption('disablemail'); # and not disabled
1374         }
1375
1376         function emailUserLink() {
1377                 global $wgTitle;
1378
1379                 return $this->makeKnownLinkObj(
1380                         SpecialPage::getTitleFor( 'Emailuser', $wgTitle->getDBkey() ),
1381                         wfMsg( 'emailuser' ) );
1382         }
1383
1384         function watchPageLinksLink() {
1385                 global $wgOut, $wgTitle;
1386
1387                 if ( ! $wgOut->isArticleRelated() ) {
1388                         return '(' . wfMsg( 'notanarticle' ) . ')';
1389                 } else {
1390                         return $this->makeKnownLinkObj(
1391                                 SpecialPage::getTitleFor( 'Recentchangeslinked', $wgTitle->getPrefixedDBkey() ),
1392                                 wfMsg( 'recentchangeslinked' ) );
1393                 }
1394         }
1395
1396         function trackbackLink() {
1397                 global $wgTitle;
1398
1399                 return "<a href=\"" . $wgTitle->trackbackURL() . "\">"
1400                         . wfMsg('trackbacklink') . "</a>";
1401         }
1402
1403         function otherLanguages() {
1404                 global $wgOut, $wgContLang, $wgHideInterlanguageLinks;
1405
1406                 if ( $wgHideInterlanguageLinks ) {
1407                         return '';
1408                 }
1409
1410                 $a = $wgOut->getLanguageLinks();
1411                 if ( 0 == count( $a ) ) {
1412                         return '';
1413                 }
1414
1415                 $s = wfMsg( 'otherlanguages' ) . ': ';
1416                 $first = true;
1417                 if($wgContLang->isRTL()) $s .= '<span dir="LTR">';
1418                 foreach( $a as $l ) {
1419                         if ( ! $first ) { $s .= ' | '; }
1420                         $first = false;
1421
1422                         $nt = Title::newFromText( $l );
1423                         $url = $nt->escapeFullURL();
1424                         $text = $wgContLang->getLanguageName( $nt->getInterwiki() );
1425
1426                         if ( '' == $text ) { $text = $l; }
1427                         $style = $this->getExternalLinkAttributes( $l, $text );
1428                         $s .= "<a href=\"{$url}\"{$style}>{$text}</a>";
1429                 }
1430                 if($wgContLang->isRTL()) $s .= '</span>';
1431                 return $s;
1432         }
1433
1434         function bugReportsLink() {
1435                 $s = $this->makeKnownLink( wfMsgForContent( 'bugreportspage' ),
1436                   wfMsg( 'bugreports' ) );
1437                 return $s;
1438         }
1439
1440         function talkLink() {
1441                 global $wgTitle;
1442
1443                 if ( NS_SPECIAL == $wgTitle->getNamespace() ) {
1444                         # No discussion links for special pages
1445                         return '';
1446                 }
1447
1448                 if( $wgTitle->isTalkPage() ) {
1449                         $link = $wgTitle->getSubjectPage();
1450                         switch( $link->getNamespace() ) {
1451                                 case NS_MAIN:
1452                                         $text = wfMsg( 'articlepage' );
1453                                         break;
1454                                 case NS_USER:
1455                                         $text = wfMsg( 'userpage' );
1456                                         break;
1457                                 case NS_PROJECT:
1458                                         $text = wfMsg( 'projectpage' );
1459                                         break;
1460                                 case NS_IMAGE:
1461                                         $text = wfMsg( 'imagepage' );
1462                                         break;
1463                                 case NS_MEDIAWIKI:
1464                                         $text = wfMsg( 'mediawikipage' );
1465                                         break;
1466                                 case NS_TEMPLATE:
1467                                         $text = wfMsg( 'templatepage' );
1468                                         break;
1469                                 case NS_HELP:
1470                                         $text = wfMsg( 'viewhelppage' );
1471                                         break;
1472                                 case NS_CATEGORY:
1473                                         $text = wfMsg( 'categorypage' );
1474                                         break;
1475                                 default:
1476                                         $text = wfMsg( 'articlepage' );
1477                         }
1478                 } else {
1479                         $link = $wgTitle->getTalkPage();
1480                         $text = wfMsg( 'talkpage' );
1481                 }
1482
1483                 $s = $this->makeLinkObj( $link, $text );
1484
1485                 return $s;
1486         }
1487
1488         function commentLink() {
1489                 global $wgTitle, $wgOut;
1490
1491                 if ( $wgTitle->getNamespace() == NS_SPECIAL ) {
1492                         return '';
1493                 }
1494
1495                 # __NEWSECTIONLINK___ changes behaviour here
1496                 # If it's present, the link points to this page, otherwise
1497                 # it points to the talk page
1498                 if( $wgTitle->isTalkPage() ) {
1499                         $title =& $wgTitle;
1500                 } elseif( $wgOut->showNewSectionLink() ) {
1501                         $title =& $wgTitle;
1502                 } else {
1503                         $title =& $wgTitle->getTalkPage();
1504                 }
1505
1506                 return $this->makeKnownLinkObj( $title, wfMsg( 'postcomment' ), 'action=edit&section=new' );
1507         }
1508
1509         /* these are used extensively in SkinTemplate, but also some other places */
1510         static function makeMainPageUrl( $urlaction = '' ) {
1511                 $title = Title::newMainPage();
1512                 self::checkTitle( $title, '' );
1513                 return $title->getLocalURL( $urlaction );
1514         }
1515
1516         static function makeSpecialUrl( $name, $urlaction = '' ) {
1517                 $title = SpecialPage::getTitleFor( $name );
1518                 return $title->getLocalURL( $urlaction );
1519         }
1520
1521         static function makeSpecialUrlSubpage( $name, $subpage, $urlaction = '' ) {
1522                 $title = SpecialPage::getSafeTitleFor( $name, $subpage );
1523                 return $title->getLocalURL( $urlaction );
1524         }
1525
1526         static function makeI18nUrl( $name, $urlaction = '' ) {
1527                 $title = Title::newFromText( wfMsgForContent( $name ) );
1528                 self::checkTitle( $title, $name );
1529                 return $title->getLocalURL( $urlaction );
1530         }
1531
1532         static function makeUrl( $name, $urlaction = '' ) {
1533                 $title = Title::newFromText( $name );
1534                 self::checkTitle( $title, $name );
1535                 return $title->getLocalURL( $urlaction );
1536         }
1537
1538         # If url string starts with http, consider as external URL, else
1539         # internal
1540         static function makeInternalOrExternalUrl( $name ) {
1541                 if ( preg_match( '/^(?:' . wfUrlProtocols() . ')/', $name ) ) {
1542                         return $name;
1543                 } else {
1544                         return self::makeUrl( $name );
1545                 }
1546         }
1547
1548         # this can be passed the NS number as defined in Language.php
1549         static function makeNSUrl( $name, $urlaction = '', $namespace = NS_MAIN ) {
1550                 $title = Title::makeTitleSafe( $namespace, $name );
1551                 self::checkTitle( $title, $name );
1552                 return $title->getLocalURL( $urlaction );
1553         }
1554
1555         /* these return an array with the 'href' and boolean 'exists' */
1556         static function makeUrlDetails( $name, $urlaction = '' ) {
1557                 $title = Title::newFromText( $name );
1558                 self::checkTitle( $title, $name );
1559                 return array(
1560                         'href' => $title->getLocalURL( $urlaction ),
1561                         'exists' => $title->getArticleID() != 0 ? true : false
1562                 );
1563         }
1564
1565         /**
1566          * Make URL details where the article exists (or at least it's convenient to think so)
1567          */
1568         static function makeKnownUrlDetails( $name, $urlaction = '' ) {
1569                 $title = Title::newFromText( $name );
1570                 self::checkTitle( $title, $name );
1571                 return array(
1572                         'href' => $title->getLocalURL( $urlaction ),
1573                         'exists' => true
1574                 );
1575         }
1576
1577         # make sure we have some title to operate on
1578         static function checkTitle( &$title, $name ) {
1579                 if( !is_object( $title ) ) {
1580                         $title = Title::newFromText( $name );
1581                         if( !is_object( $title ) ) {
1582                                 $title = Title::newFromText( '--error: link target missing--' );
1583                         }
1584                 }
1585         }
1586
1587         /**
1588          * Build an array that represents the sidebar(s), the navigation bar among them
1589          *
1590          * @return array
1591          * @private
1592          */
1593         function buildSidebar() {
1594                 global $parserMemc, $wgEnableSidebarCache;
1595                 global $wgLang, $wgContLang;
1596
1597                 $fname = 'SkinTemplate::buildSidebar';
1598
1599                 wfProfileIn( $fname );
1600
1601                 $key = wfMemcKey( 'sidebar' );
1602                 $cacheSidebar = $wgEnableSidebarCache &&
1603                         ($wgLang->getCode() == $wgContLang->getCode());
1604
1605                 if ($cacheSidebar) {
1606                         $cachedsidebar = $parserMemc->get( $key );
1607                         if ($cachedsidebar!="") {
1608                                 wfProfileOut($fname);
1609                                 return $cachedsidebar;
1610                         }
1611                 }
1612
1613                 $bar = array();
1614                 $lines = explode( "\n", wfMsgForContent( 'sidebar' ) );
1615                 foreach ($lines as $line) {
1616                         if (strpos($line, '*') !== 0)
1617                                 continue;
1618                         if (strpos($line, '**') !== 0) {
1619                                 $line = trim($line, '* ');
1620                                 $heading = $line;
1621                         } else {
1622                                 if (strpos($line, '|') !== false) { // sanity check
1623                                         $line = explode( '|' , trim($line, '* '), 2 );
1624                                         $link = wfMsgForContent( $line[0] );
1625                                         if ($link == '-')
1626                                                 continue;
1627                                         if (wfEmptyMsg($line[1], $text = wfMsg($line[1])))
1628                                                 $text = $line[1];
1629                                         if (wfEmptyMsg($line[0], $link))
1630                                                 $link = $line[0];
1631
1632                                         if ( preg_match( '/^(?:' . wfUrlProtocols() . ')/', $link ) ) {
1633                                                 $href = $link;
1634                                         } else {
1635                                                 $title = Title::newFromText( $link );
1636                                                 if ( $title ) {
1637                                                         $title = $title->fixSpecialName();
1638                                                         $href = $title->getLocalURL();
1639                                                 } else {
1640                                                         $href = 'INVALID-TITLE';
1641                                                 }
1642                                         }
1643
1644                                         $bar[$heading][] = array(
1645                                                 'text' => $text,
1646                                                 'href' => $href,
1647                                                 'id' => 'n-' . strtr($line[1], ' ', '-'),
1648                                                 'active' => false
1649                                         );
1650                                 } else { continue; }
1651                         }
1652                 }
1653                 if ($cacheSidebar)
1654                         $parserMemc->set( $key, $bar, 86400 );
1655                 wfProfileOut( $fname );
1656                 return $bar;
1657         }
1658
1659 }