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