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, $wgContLang;
 160
 161                 wfProfileIn( __METHOD__ );
 162
 163                 if( false !== $wgFavicon ) {
 164                         $out->addLink( array( 'rel' => 'shortcut icon', 'href' => $wgFavicon ) );
 165                 }
 166
 167                 $code = $wgContLang->getCode();
 168                 $name = $wgContLang->getLanguageName( $code );
 169                 $langName = $name ? $name : $code;
 170
 171                 # OpenSearch description link
 172                 $out->addLink( array(
 173                         'rel' => 'search',
 174                         'type' => 'application/opensearchdescription+xml',
 175                         'href' => "$wgScriptPath/opensearch_desc.php",
 176                         'title' => "$wgSitename ($langName)",
 177                 ));
 178
 179                 $this->addMetadataLinks($out);
 180
 181                 $this->mRevisionId = $out->mRevisionId;
 182
 183                 $this->preloadExistence();
 184
 185                 wfProfileOut( __METHOD__ );
 186         }
 187
 188         /**
 189          * Preload the existence of three commonly-requested pages in a single query
 190          */
 191         function preloadExistence() {
 192                 global $wgUser, $wgTitle;
 193
 194                 // User/talk link
 195                 $titles = array( $wgUser->getUserPage(), $wgUser->getTalkPage() );
 196
 197                 // Other tab link
 198                 if ( $wgTitle->getNamespace() == NS_SPECIAL ) {
 199                         // nothing
 200                 } elseif ( $wgTitle->isTalkPage() ) {
 201                         $titles[] = $wgTitle->getSubjectPage();
 202                 } else {
 203                         $titles[] = $wgTitle->getTalkPage();
 204                 }
 205
 206                 $lb = new LinkBatch( $titles );
 207                 $lb->execute();
 208         }
 209
 210         function addMetadataLinks( &$out ) {
 211                 global $wgTitle, $wgEnableDublinCoreRdf, $wgEnableCreativeCommonsRdf;
 212                 global $wgRightsPage, $wgRightsUrl;
 213
 214                 if( $out->isArticleRelated() ) {
 215                         # note: buggy CC software only reads first "meta" link
 216                         if( $wgEnableCreativeCommonsRdf ) {
 217                                 $out->addMetadataLink( array(
 218                                         'title' => 'Creative Commons',
 219                                         'type' => 'application/rdf+xml',
 220                                         'href' => $wgTitle->getLocalURL( 'action=creativecommons') ) );
 221                         }
 222                         if( $wgEnableDublinCoreRdf ) {
 223                                 $out->addMetadataLink( array(
 224                                         'title' => 'Dublin Core',
 225                                         'type' => 'application/rdf+xml',
 226                                         'href' => $wgTitle->getLocalURL( 'action=dublincore' ) ) );
 227                         }
 228                 }
 229                 $copyright = '';
 230                 if( $wgRightsPage ) {
 231                         $copy = Title::newFromText( $wgRightsPage );
 232                         if( $copy ) {
 233                                 $copyright = $copy->getLocalURL();
 234                         }
 235                 }
 236                 if( !$copyright && $wgRightsUrl ) {
 237                         $copyright = $wgRightsUrl;
 238                 }
 239                 if( $copyright ) {
 240                         $out->addLink( array(
 241                                 'rel' => 'copyright',
 242                                 'href' => $copyright ) );
 243                 }
 244         }
 245
 246         function outputPage( &$out ) {
 247                 global $wgDebugComments;
 248
 249                 wfProfileIn( __METHOD__ );
 250                 $this->initPage( $out );
 251
 252                 $out->out( $out->headElement() );
 253
 254                 $out->out( "\n<body" );
 255                 $ops = $this->getBodyOptions();
 256                 foreach ( $ops as $name => $val ) {
 257                         $out->out( " $name='$val'" );
 258                 }
 259                 $out->out( ">\n" );
 260                 if ( $wgDebugComments ) {
 261                         $out->out( "<!-- Wiki debugging output:\n" .
 262                           $out->mDebugtext . "-->\n" );
 263                 }
 264
 265                 $out->out( $this->beforeContent() );
 266
 267                 $out->out( $out->mBodytext . "\n" );
 268
 269                 $out->out( $this->afterContent() );
 270
 271                 $out->out( $this->bottomScripts() );
 272
 273                 $out->out( $out->reportTime() );
 274
 275                 $out->out( "\n</body></html>" );
 276                 wfProfileOut( __METHOD__ );
 277         }
 278
 279         static function makeVariablesScript( $data ) {
 280                 global $wgJsMimeType;
 281
 282                 $r = "<script type= \"$wgJsMimeType\">/*<![CDATA[*/\n";
 283                 foreach ( $data as $name => $value ) {
 284                         $encValue = Xml::encodeJsVar( $value );
 285                         $r .= "var $name = $encValue;\n";
 286                 }
 287                 $r .= "/*]]>*/</script>\n";
 288
 289                 return $r;
 290         }
 291
 292         /**
 293          * Make a <script> tag containing global variables
 294          * @param array $data Associative array containing one element:
 295          *     skinname => the skin name
 296          * The odd calling convention is for backwards compatibility
 297          */
 298         static function makeGlobalVariablesScript( $data ) {
 299                 global $wgScript, $wgStylePath, $wgUser;
 300                 global $wgArticlePath, $wgScriptPath, $wgServer, $wgContLang, $wgLang;
 301                 global $wgTitle, $wgCanonicalNamespaceNames, $wgOut, $wgArticle;
 302                 global $wgBreakFrames, $wgRequest;
 303                 global $wgUseAjax, $wgAjaxWatch;
 304
 305                 $ns = $wgTitle->getNamespace();
 306                 $nsname = isset( $wgCanonicalNamespaceNames[ $ns ] ) ? $wgCanonicalNamespaceNames[ $ns ] : $wgTitle->getNsText();
 307
 308                 $vars = array(
 309                         'skin' => $data['skinname'],
 310                         'stylepath' => $wgStylePath,
 311                         'wgArticlePath' => $wgArticlePath,
 312                         'wgScriptPath' => $wgScriptPath,
 313                         'wgScript' => $wgScript,
 314                         'wgServer' => $wgServer,
 315                         'wgCanonicalNamespace' => $nsname,
 316                         'wgCanonicalSpecialPageName' => SpecialPage::resolveAlias( $wgTitle->getDBKey() ),
 317                         'wgNamespaceNumber' => $wgTitle->getNamespace(),
 318                         'wgPageName' => $wgTitle->getPrefixedDBKey(),
 319                         'wgTitle' => $wgTitle->getText(),
 320                         'wgAction' => $wgRequest->getText( 'action', 'view' ),
 321                         'wgRestrictionEdit' => $wgTitle->getRestrictions( 'edit' ),
 322                         'wgRestrictionMove' => $wgTitle->getRestrictions( 'move' ),
 323                         'wgArticleId' => $wgTitle->getArticleId(),
 324                         'wgIsArticle' => $wgOut->isArticle(),
 325                         'wgUserName' => $wgUser->isAnon() ? NULL : $wgUser->getName(),
 326                         'wgUserGroups' => $wgUser->isAnon() ? NULL : $wgUser->getEffectiveGroups(),
 327                         'wgUserLanguage' => $wgLang->getCode(),
 328                         'wgContentLanguage' => $wgContLang->getCode(),
 329                         'wgBreakFrames' => $wgBreakFrames,
 330                         'wgCurRevisionId' => isset( $wgArticle ) ? $wgArticle->getLatest() : 0,
 331                 );
 332
 333                 global $wgLivePreview;
 334                 if ( $wgLivePreview && $wgUser->getOption( 'uselivepreview' ) ) {
 335                         $vars['wgLivepreviewMessageLoading'] = wfMsg( 'livepreview-loading' );
 336                         $vars['wgLivepreviewMessageReady']   = wfMsg( 'livepreview-ready' );
 337                         $vars['wgLivepreviewMessageFailed']  = wfMsg( 'livepreview-failed' );
 338                         $vars['wgLivepreviewMessageError']   = wfMsg( 'livepreview-error' );
 339                 }
 340
 341                 if($wgUseAjax && $wgAjaxWatch && $wgUser->isLoggedIn() ) {
 342                         $msgs = (object)array();
 343                         foreach ( array( 'watch', 'unwatch', 'watching', 'unwatching' ) as $msgName ) {
 344                                 $msgs->{$msgName . 'Msg'} = wfMsg( $msgName );
 345                         }
 346                         $vars['wgAjaxWatch'] = $msgs;
 347                 }
 348
 349                 return self::makeVariablesScript( $vars );
 350         }
 351
 352         function getHeadScripts( $allowUserJs ) {
 353                 global $wgStylePath, $wgUser, $wgJsMimeType, $wgStyleVersion;
 354
 355                 $r = self::makeGlobalVariablesScript( array( 'skinname' => $this->getSkinName() ) );
 356
 357                 $r .= "<script type=\"{$wgJsMimeType}\" src=\"{$wgStylePath}/common/wikibits.js?$wgStyleVersion\"></script>\n";
 358                 global $wgUseSiteJs;
 359                 if ($wgUseSiteJs) {
 360                         $jsCache = $wgUser->isLoggedIn() ? '&smaxage=0' : '';
 361                         $r .= "<script type=\"$wgJsMimeType\" src=\"".
 362                                 htmlspecialchars(self::makeUrl('-',
 363                                         "action=raw$jsCache&gen=js&useskin=" .
 364                                         urlencode( $this->getSkinName() ) ) ) .
 365                                 "\"><!-- site js --></script>\n";
 366                 }
 367                 if( $allowUserJs && $wgUser->isLoggedIn() ) {
 368                         $userpage = $wgUser->getUserPage();
 369                         $userjs = htmlspecialchars( self::makeUrl(
 370                                 $userpage->getPrefixedText().'/'.$this->getSkinName().'.js',
 371                                 'action=raw&ctype='.$wgJsMimeType));
 372                         $r .= '<script type="'.$wgJsMimeType.'" src="'.$userjs."\"></script>\n";
 373                 }
 374                 return $r;
 375         }
 376
 377         /**
 378          * To make it harder for someone to slip a user a fake
 379          * user-JavaScript or user-CSS preview, a random token
 380          * is associated with the login session. If it's not
 381          * passed back with the preview request, we won't render
 382          * the code.
 383          *
 384          * @param string $action
 385          * @return bool
 386          * @private
 387          */
 388         function userCanPreview( $action ) {
 389                 global $wgTitle, $wgRequest, $wgUser;
 390
 391                 if( $action != 'submit' )
 392                         return false;
 393                 if( !$wgRequest->wasPosted() )
 394                         return false;
 395                 if( !$wgTitle->userCanEditCssJsSubpage() )
 396                         return false;
 397                 return $wgUser->matchEditToken(
 398                         $wgRequest->getVal( 'wpEditToken' ) );
 399         }
 400
 401         # get the user/site-specific stylesheet, SkinTemplate loads via RawPage.php (settings are cached that way)
 402         function getUserStylesheet() {
 403                 global $wgStylePath, $wgRequest, $wgContLang, $wgSquidMaxage, $wgStyleVersion;
 404                 $sheet = $this->getStylesheet();
 405                 $s = "@import \"$wgStylePath/common/shared.css?$wgStyleVersion\";\n";
 406                 $s .= "@import \"$wgStylePath/common/oldshared.css?$wgStyleVersion\";\n";
 407                 $s .= "@import \"$wgStylePath/$sheet?$wgStyleVersion\";\n";
 408                 if($wgContLang->isRTL()) $s .= "@import \"$wgStylePath/common/common_rtl.css?$wgStyleVersion\";\n";
 409
 410                 $query = "usemsgcache=yes&action=raw&ctype=text/css&smaxage=$wgSquidMaxage";
 411                 $s .= '@import "' . self::makeNSUrl( 'Common.css', $query, NS_MEDIAWIKI ) . "\";\n" .
 412                         '@import "' . self::makeNSUrl( ucfirst( $this->getSkinName() . '.css' ), $query, NS_MEDIAWIKI ) . "\";\n";
 413
 414                 $s .= $this->doGetUserStyles();
 415                 return $s."\n";
 416         }
 417
 418         /**
 419          * This returns MediaWiki:Common.js, and derived classes may add other JS.
 420          * Despite its name, it does *not* return any custom user JS from user
 421          * subpages.  The returned script is sitewide and publicly cacheable and
 422          * therefore must not include anything that varies according to user,
 423          * interface language, etc. (although it may vary by skin).  See
 424          * makeGlobalVariablesScript for things that can vary per page view and are
 425          * not cacheable.
 426          *
 427          * @return string Raw JavaScript to be returned
 428          */
 429         public function getUserJs() {
 430                 wfProfileIn( __METHOD__ );
 431
 432                 global $wgStylePath;
 433                 $s = "/* generated javascript */\n";
 434                 $s .= "var skin = '" . Xml::escapeJsString( $this->getSkinName() ) . "';\n";
 435                 $s .= "var stylepath = '" . Xml::escapeJsString( $wgStylePath ) . "';";
 436                 $s .= "\n\n/* MediaWiki:Common.js */\n";
 437                 $commonJs = wfMsgForContent('common.js');
 438                 if ( !wfEmptyMsg ( 'common.js', $commonJs ) ) {
 439                         $s .= $commonJs;
 440                 }
 441                 wfProfileOut( __METHOD__ );
 442                 return $s;
 443         }
 444
 445         /**
 446          * Return html code that include User stylesheets
 447          */
 448         function getUserStyles() {
 449                 $s = "<style type='text/css'>\n";
 450                 $s .= "/*/*/ /*<![CDATA[*/\n"; # <-- Hide the styles from Netscape 4 without hiding them from IE/Mac
 451                 $s .= $this->getUserStylesheet();
 452                 $s .= "/*]]>*/ /* */\n";
 453                 $s .= "</style>\n";
 454                 return $s;
 455         }
 456
 457         /**
 458          * Some styles that are set by user through the user settings interface.
 459          */
 460         function doGetUserStyles() {
 461                 global $wgUser, $wgUser, $wgRequest, $wgTitle, $wgAllowUserCss;
 462
 463                 $s = '';
 464
 465                 if( $wgAllowUserCss && $wgUser->isLoggedIn() ) { # logged in
 466                         if($wgTitle->isCssSubpage() && $this->userCanPreview( $wgRequest->getText( 'action' ) ) ) {
 467                                 $s .= $wgRequest->getText('wpTextbox1');
 468                         } else {
 469                                 $userpage = $wgUser->getUserPage();
 470                                 $s.= '@import "'.self::makeUrl(
 471                                         $userpage->getPrefixedText().'/'.$this->getSkinName().'.css',
 472                                         'action=raw&ctype=text/css').'";'."\n";
 473                         }
 474                 }
 475
 476                 return $s . $this->reallyDoGetUserStyles();
 477         }
 478
 479         function reallyDoGetUserStyles() {
 480                 global $wgUser;
 481                 $s = '';
 482                 if (($undopt = $wgUser->getOption("underline")) != 2) {
 483                         $underline = $undopt ? 'underline' : 'none';
 484                         $s .= "a { text-decoration: $underline; }\n";
 485                 }
 486                 if( $wgUser->getOption( 'highlightbroken' ) ) {
 487                         $s .= "a.new, #quickbar a.new { color: #CC2200; }\n";
 488                 } else {
 489                         $s .= <<<END
 490 a.new, #quickbar a.new,
 491 a.stub, #quickbar a.stub {
 492         color: inherit;
 493         text-decoration: inherit;
 494 }
 495 a.new:after, #quickbar a.new:after {
 496         content: "?";
 497         color: #CC2200;
 498         text-decoration: $underline;
 499 }
 500 a.stub:after, #quickbar a.stub:after {
 501         content: "!";
 502         color: #772233;
 503         text-decoration: $underline;
 504 }
 505 END;
 506                 }
 507                 if( $wgUser->getOption( 'justify' ) ) {
 508                         $s .= "#article, #bodyContent { text-align: justify; }\n";
 509                 }
 510                 if( !$wgUser->getOption( 'showtoc' ) ) {
 511                         $s .= "#toc { display: none; }\n";
 512                 }
 513                 if( !$wgUser->getOption( 'editsection' ) ) {
 514                         $s .= ".editsection { display: none; }\n";
 515                 }
 516                 return $s;
 517         }
 518
 519         function getBodyOptions() {
 520                 global $wgUser, $wgTitle, $wgOut, $wgRequest, $wgContLang;
 521
 522                 extract( $wgRequest->getValues( 'oldid', 'redirect', 'diff' ) );
 523
 524                 if ( 0 != $wgTitle->getNamespace() ) {
 525                         $a = array( 'bgcolor' => '#ffffec' );
 526                 }
 527                 else $a = array( 'bgcolor' => '#FFFFFF' );
 528                 if($wgOut->isArticle() && $wgUser->getOption('editondblclick') &&
 529                   $wgTitle->userCan( 'edit' ) ) {
 530                         $s = $wgTitle->getFullURL( $this->editUrlOptions() );
 531                         $s = 'document.location = "' .wfEscapeJSString( $s ) .'";';
 532                         $a += array ('ondblclick' => $s);
 533
 534                 }
 535                 $a['onload'] = $wgOut->getOnloadHandler();
 536                 if( $wgUser->getOption( 'editsectiononrightclick' ) ) {
 537                         if( $a['onload'] != '' ) {
 538                                 $a['onload'] .= ';';
 539                         }
 540                         $a['onload'] .= 'setupRightClickEdit()';
 541                 }
 542                 $a['class'] = 'ns-'.$wgTitle->getNamespace().' '.($wgContLang->isRTL() ? "rtl" : "ltr").
 543                 ' '.Sanitizer::escapeClass( 'page-'.$wgTitle->getPrefixedText() );
 544                 return $a;
 545         }
 546
 547         /**
 548          * URL to the logo
 549          */
 550         function getLogo() {
 551                 global $wgLogo;
 552                 return $wgLogo;
 553         }
 554
 555         /**
 556          * This will be called immediately after the <body> tag.  Split into
 557          * two functions to make it easier to subclass.
 558          */
 559         function beforeContent() {
 560                 return $this->doBeforeContent();
 561         }
 562
 563         function doBeforeContent() {
 564                 global $wgContLang;
 565                 $fname = 'Skin::doBeforeContent';
 566                 wfProfileIn( $fname );
 567
 568                 $s = '';
 569                 $qb = $this->qbSetting();
 570
 571                 if( $langlinks = $this->otherLanguages() ) {
 572                         $rows = 2;
 573                         $borderhack = '';
 574                 } else {
 575                         $rows = 1;
 576                         $langlinks = false;
 577                         $borderhack = 'class="top"';
 578                 }
 579
 580                 $s .= "\n<div id='content'>\n<div id='topbar'>\n" .
 581                   "<table border='0' cellspacing='0' width='98%'>\n<tr>\n";
 582
 583                 $shove = ($qb != 0);
 584                 $left = ($qb == 1 || $qb == 3);
 585                 if($wgContLang->isRTL()) $left = !$left;
 586
 587                 if ( !$shove ) {
 588                         $s .= "<td class='top' align='left' valign='top' rowspan='{$rows}'>\n" .
 589                           $this->logoText() . '</td>';
 590                 } elseif( $left ) {
 591                         $s .= $this->getQuickbarCompensator( $rows );
 592                 }
 593                 $l = $wgContLang->isRTL() ? 'right' : 'left';
 594                 $s .= "<td {$borderhack} align='$l' valign='top'>\n";
 595
 596                 $s .= $this->topLinks() ;
 597                 $s .= "<p class='subtitle'>" . $this->pageTitleLinks() . "</p>\n";
 598
 599                 $r = $wgContLang->isRTL() ? "left" : "right";
 600                 $s .= "</td>\n<td {$borderhack} valign='top' align='$r' nowrap='nowrap'>";
 601                 $s .= $this->nameAndLogin();
 602                 $s .= "\n<br />" . $this->searchForm() . "</td>";
 603
 604                 if ( $langlinks ) {
 605                         $s .= "</tr>\n<tr>\n<td class='top' colspan=\"2\">$langlinks</td>\n";
 606                 }
 607
 608                 if ( $shove && !$left ) { # Right
 609                         $s .= $this->getQuickbarCompensator( $rows );
 610                 }
 611                 $s .= "</tr>\n</table>\n</div>\n";
 612                 $s .= "\n<div id='article'>\n";
 613
 614                 $notice = wfGetSiteNotice();
 615                 if( $notice ) {
 616                         $s .= "\n<div id='siteNotice'>$notice</div>\n";
 617                 }
 618                 $s .= $this->pageTitle();
 619                 $s .= $this->pageSubtitle() ;
 620                 $s .= $this->getCategories();
 621                 wfProfileOut( $fname );
 622                 return $s;
 623         }
 624
 625
 626         function getCategoryLinks () {
 627                 global $wgOut, $wgTitle, $wgUseCategoryBrowser;
 628                 global $wgContLang;
 629
 630                 if( count( $wgOut->mCategoryLinks ) == 0 ) return '';
 631
 632                 # Separator
 633                 $sep = wfMsgHtml( 'catseparator' );
 634
 635                 // Use Unicode bidi embedding override characters,
 636                 // to make sure links don't smash each other up in ugly ways.
 637                 $dir = $wgContLang->isRTL() ? 'rtl' : 'ltr';
 638                 $embed = "<span dir='$dir'>";
 639                 $pop = '</span>';
 640                 $t = $embed . implode ( "{$pop} {$sep} {$embed}" , $wgOut->mCategoryLinks ) . $pop;
 641
 642                 $msg = wfMsgExt( 'pagecategories', array( 'parsemag', 'escape' ), count( $wgOut->mCategoryLinks ) );
 643                 $s = $this->makeLinkObj( Title::newFromText( wfMsgForContent('pagecategorieslink') ), $msg )
 644                         . ': ' . $t;
 645
 646                 # optional 'dmoz-like' category browser. Will be shown under the list
 647                 # of categories an article belong to
 648                 if($wgUseCategoryBrowser) {
 649                         $s .= '<br /><hr />';
 650
 651                         # get a big array of the parents tree
 652                         $parenttree = $wgTitle->getParentCategoryTree();
 653                         # Skin object passed by reference cause it can not be
 654                         # accessed under the method subfunction drawCategoryBrowser
 655                         $tempout = explode("\n", Skin::drawCategoryBrowser($parenttree, $this) );
 656                         # Clean out bogus first entry and sort them
 657                         unset($tempout[0]);
 658                         asort($tempout);
 659                         # Output one per line
 660                         $s .= implode("<br />\n", $tempout);
 661                 }
 662
 663                 return $s;
 664         }
 665
 666         /** Render the array as a serie of links.
 667          * @param $tree Array: categories tree returned by Title::getParentCategoryTree
 668          * @param &skin Object: skin passed by reference
 669          * @return String separated by &gt;, terminate with "\n"
 670          */
 671         function drawCategoryBrowser($tree, &$skin) {
 672                 $return = '';
 673                 foreach ($tree as $element => $parent) {
 674                         if (empty($parent)) {
 675                                 # element start a new list
 676                                 $return .= "\n";
 677                         } else {
 678                                 # grab the others elements
 679                                 $return .= Skin::drawCategoryBrowser($parent, $skin) . ' &gt; ';
 680                         }
 681                         # add our current element to the list
 682                         $eltitle = Title::NewFromText($element);
 683                         $return .=  $skin->makeLinkObj( $eltitle, $eltitle->getText() ) ;
 684                 }
 685                 return $return;
 686         }
 687
 688         function getCategories() {
 689                 $catlinks=$this->getCategoryLinks();
 690                 if(!empty($catlinks)) {
 691                         return "<p class='catlinks'>{$catlinks}</p>";
 692                 }
 693         }
 694
 695         function getQuickbarCompensator( $rows = 1 ) {
 696                 return "<td width='152' rowspan='{$rows}'>&nbsp;</td>";
 697         }
 698
 699         /**
 700          * This gets called shortly before the \</body\> tag.
 701          * @return String HTML to be put before \</body\>
 702          */
 703         function afterContent() {
 704                 $printfooter = "<div class=\"printfooter\">\n" . $this->printFooter() . "</div>\n";
 705                 return $printfooter . $this->doAfterContent();
 706         }
 707
 708         /**
 709          * This gets called shortly before the \</body\> tag.
 710          * @return String HTML-wrapped JS code to be put before \</body\>
 711          */
 712         function bottomScripts() {
 713                 global $wgJsMimeType;
 714                 $bottomScriptText = "\n\t\t<script type=\"$wgJsMimeType\">if (window.runOnloadHook) runOnloadHook();</script>\n";
 715                 wfRunHooks( 'SkinAfterBottomScripts', array( $this, &$bottomScriptText ) );
 716                 return $bottomScriptText;
 717         }
 718
 719         /** @return string Retrievied from HTML text */
 720         function printSource() {
 721                 global $wgTitle;
 722                 $url = htmlspecialchars( $wgTitle->getFullURL() );
 723                 return wfMsg( 'retrievedfrom', '<a href="'.$url.'">'.$url.'</a>' );
 724         }
 725
 726         function printFooter() {
 727                 return "<p>" .  $this->printSource() .
 728                         "</p>\n\n<p>" . $this->pageStats() . "</p>\n";
 729         }
 730
 731         /** overloaded by derived classes */
 732         function doAfterContent() { }
 733
 734         function pageTitleLinks() {
 735                 global $wgOut, $wgTitle, $wgUser, $wgRequest;
 736
 737                 $oldid = $wgRequest->getVal( 'oldid' );
 738                 $diff = $wgRequest->getVal( 'diff' );
 739                 $action = $wgRequest->getText( 'action' );
 740
 741                 $s = $this->printableLink();
 742                 $disclaimer = $this->disclaimerLink(); # may be empty
 743                 if( $disclaimer ) {
 744                         $s .= ' | ' . $disclaimer;
 745                 }
 746                 $privacy = $this->privacyLink(); # may be empty too
 747                 if( $privacy ) {
 748                         $s .= ' | ' . $privacy;
 749                 }
 750
 751                 if ( $wgOut->isArticleRelated() ) {
 752                         if ( $wgTitle->getNamespace() == NS_IMAGE ) {
 753                                 $name = $wgTitle->getDBkey();
 754                                 $image = wfFindFile( $wgTitle );
 755                                 if( $image ) {
 756                                         $link = htmlspecialchars( $image->getURL() );
 757                                         $style = $this->getInternalLinkAttributes( $link, $name );
 758                                         $s .= " | <a href=\"{$link}\"{$style}>{$name}</a>";
 759                                 }
 760                         }
 761                 }
 762                 if ( 'history' == $action || isset( $diff ) || isset( $oldid ) ) {
 763                         $s .= ' | ' . $this->makeKnownLinkObj( $wgTitle,
 764                                         wfMsg( 'currentrev' ) );
 765                 }
 766
 767                 if ( $wgUser->getNewtalk() ) {
 768                         # do not show "You have new messages" text when we are viewing our
 769                         # own talk page
 770                         if( !$wgTitle->equals( $wgUser->getTalkPage() ) ) {
 771                                 $tl = $this->makeKnownLinkObj( $wgUser->getTalkPage(), wfMsgHtml( 'newmessageslink' ), 'redirect=no' );
 772                                 $dl = $this->makeKnownLinkObj( $wgUser->getTalkPage(), wfMsgHtml( 'newmessagesdifflink' ), 'diff=cur' );
 773                                 $s.= ' | <strong>'. wfMsg( 'youhavenewmessages', $tl, $dl ) . '</strong>';
 774                                 # disable caching
 775                                 $wgOut->setSquidMaxage(0);
 776                                 $wgOut->enableClientCache(false);
 777                         }
 778                 }
 779
 780                 $undelete = $this->getUndeleteLink();
 781                 if( !empty( $undelete ) ) {
 782                         $s .= ' | '.$undelete;
 783                 }
 784                 return $s;
 785         }
 786
 787         function getUndeleteLink() {
 788                 global $wgUser, $wgTitle, $wgContLang, $wgLang, $action;
 789                 if(     $wgUser->isAllowed( 'deletedhistory' ) &&
 790                         (($wgTitle->getArticleId() == 0) || ($action == "history")) &&
 791                         ($n = $wgTitle->isDeleted() ) )
 792                 {
 793                         if ( $wgUser->isAllowed( 'delete' ) ) {
 794                                 $msg = 'thisisdeleted';
 795                         } else {
 796                                 $msg = 'viewdeleted';
 797                         }
 798                         return wfMsg( $msg,
 799                                 $this->makeKnownLinkObj(
 800                                         SpecialPage::getTitleFor( 'Undelete', $wgTitle->getPrefixedDBkey() ),
 801                                         wfMsgExt( 'restorelink', array( 'parsemag', 'escape' ), $wgLang->formatNum( $n ) ) ) );
 802                 }
 803                 return '';
 804         }
 805
 806         function printableLink() {
 807                 global $wgOut, $wgFeedClasses, $wgRequest;
 808
 809                 $printurl = $wgRequest->escapeAppendQuery( 'printable=yes' );
 810
 811                 $s = "<a href=\"$printurl\">" . wfMsg( 'printableversion' ) . '</a>';
 812                 if( $wgOut->isSyndicated() ) {
 813                         foreach( $wgFeedClasses as $format => $class ) {
 814                                 $feedurl = $wgRequest->escapeAppendQuery( "feed=$format" );
 815                                 $s .= " | <a href=\"$feedurl\">{$format}</a>";
 816                         }
 817                 }
 818                 return $s;
 819         }
 820
 821         function pageTitle() {
 822                 global $wgOut;
 823                 $s = '<h1 class="pagetitle">' . htmlspecialchars( $wgOut->getPageTitle() ) . '</h1>';
 824                 return $s;
 825         }
 826
 827         function pageSubtitle() {
 828                 global $wgOut;
 829
 830                 $sub = $wgOut->getSubtitle();
 831                 if ( '' == $sub ) {
 832                         global $wgExtraSubtitle;
 833                         $sub = wfMsg( 'tagline' ) . $wgExtraSubtitle;
 834                 }
 835                 $subpages = $this->subPageSubtitle();
 836                 $sub .= !empty($subpages)?"</p><p class='subpages'>$subpages":'';
 837                 $s = "<p class='subtitle'>{$sub}</p>\n";
 838                 return $s;
 839         }
 840
 841         function subPageSubtitle() {
 842                 global $wgOut,$wgTitle,$wgNamespacesWithSubpages;
 843                 $subpages = '';
 844                 if($wgOut->isArticle() && !empty($wgNamespacesWithSubpages[$wgTitle->getNamespace()])) {
 845                         $ptext=$wgTitle->getPrefixedText();
 846                         if(preg_match('/\//',$ptext)) {
 847                                 $links = explode('/',$ptext);
 848                                 $c = 0;
 849                                 $growinglink = '';
 850                                 foreach($links as $link) {
 851                                         $c++;
 852                                         if ($c<count($links)) {
 853                                                 $growinglink .= $link;
 854                                                 $getlink = $this->makeLink( $growinglink, htmlspecialchars( $link ) );
 855                                                 if(preg_match('/class="new"/i',$getlink)) { break; } # this is a hack, but it saves time
 856                                                 if ($c>1) {
 857                                                         $subpages .= ' | ';
 858                                                 } else  {
 859                                                         $subpages .= '&lt; ';
 860                                                 }
 861                                                 $subpages .= $getlink;
 862                                                 $growinglink .= '/';
 863                                         }
 864                                 }
 865                         }
 866                 }
 867                 return $subpages;
 868         }
 869
 870         /**
 871          * Returns true if the IP should be shown in the header
 872          */
 873         function showIPinHeader() {
 874                 global $wgShowIPinHeader;
 875                 return $wgShowIPinHeader && session_id() != '';
 876         }
 877
 878         function nameAndLogin() {
 879                 global $wgUser, $wgTitle, $wgLang, $wgContLang;
 880
 881                 $lo = $wgContLang->specialPage( 'Userlogout' );
 882
 883                 $s = '';
 884                 if ( $wgUser->isAnon() ) {
 885                         if( $this->showIPinHeader() ) {
 886                                 $n = wfGetIP();
 887
 888                                 $tl = $this->makeKnownLinkObj( $wgUser->getTalkPage(),
 889                                   $wgLang->getNsText( NS_TALK ) );
 890
 891                                 $s .= $n . ' ('.$tl.')';
 892                         } else {
 893                                 $s .= wfMsg('notloggedin');
 894                         }
 895
 896                         $rt = $wgTitle->getPrefixedURL();
 897                         if ( 0 == strcasecmp( urlencode( $lo ), $rt ) ) {
 898                                 $q = '';
 899                         } else { $q = "returnto={$rt}"; }
 900
 901                         $s .= "\n<br />" . $this->makeKnownLinkObj(
 902                                 SpecialPage::getTitleFor( 'Userlogin' ),
 903                                 wfMsg( 'login' ), $q );
 904                 } else {
 905                         $n = $wgUser->getName();
 906                         $rt = $wgTitle->getPrefixedURL();
 907                         $tl = $this->makeKnownLinkObj( $wgUser->getTalkPage(),
 908                           $wgLang->getNsText( NS_TALK ) );
 909
 910                         $tl = " ({$tl})";
 911
 912                         $s .= $this->makeKnownLinkObj( $wgUser->getUserPage(),
 913                           $n ) . "{$tl}<br />" .
 914                           $this->makeKnownLinkObj( SpecialPage::getTitleFor( 'Userlogout' ), wfMsg( 'logout' ),
 915                           "returnto={$rt}" ) . ' | ' .
 916                           $this->specialLink( 'preferences' );
 917                 }
 918                 $s .= ' | ' . $this->makeKnownLink( wfMsgForContent( 'helppage' ),
 919                   wfMsg( 'help' ) );
 920
 921                 return $s;
 922         }
 923
 924         function getSearchLink() {
 925                 $searchPage = SpecialPage::getTitleFor( 'Search' );
 926                 return $searchPage->getLocalURL();
 927         }
 928
 929         function escapeSearchLink() {
 930                 return htmlspecialchars( $this->getSearchLink() );
 931         }
 932
 933         function searchForm() {
 934                 global $wgRequest;
 935                 $search = $wgRequest->getText( 'search' );
 936
 937                 $s = '<form name="search" class="inline" method="post" action="'
 938                   . $this->escapeSearchLink() . "\">\n"
 939                   . '<input type="text" name="search" size="19" value="'
 940                   . htmlspecialchars(substr($search,0,256)) . "\" />\n"
 941                   . '<input type="submit" name="go" value="' . wfMsg ('searcharticle') . '" />&nbsp;'
 942                   . '<input type="submit" name="fulltext" value="' . wfMsg ('searchbutton') . "\" />\n</form>";
 943
 944                 return $s;
 945         }
 946
 947         function topLinks() {
 948                 global $wgOut;
 949                 $sep = " |\n";
 950
 951                 $s = $this->mainPageLink() . $sep
 952                   . $this->specialLink( 'recentchanges' );
 953
 954                 if ( $wgOut->isArticleRelated() ) {
 955                         $s .=  $sep . $this->editThisPage()
 956                           . $sep . $this->historyLink();
 957                 }
 958                 # Many people don't like this dropdown box
 959                 #$s .= $sep . $this->specialPagesList();
 960
 961                 $s .= $this->variantLinks();
 962
 963                 $s .= $this->extensionTabLinks();
 964
 965                 return $s;
 966         }
 967
 968         /**
 969          * Compatibility for extensions adding functionality through tabs.
 970          * Eventually these old skins should be replaced with SkinTemplate-based
 971          * versions, sigh...
 972          * @return string
 973          */
 974         function extensionTabLinks() {
 975                 $tabs = array();
 976                 $s = '';
 977                 wfRunHooks( 'SkinTemplateTabs', array( $this, &$tabs ) );
 978                 foreach( $tabs as $tab ) {
 979                         $s .= ' | ' . Xml::element( 'a',
 980                                 array( 'href' => $tab['href'] ),
 981                                 $tab['text'] );
 982                 }
 983                 return $s;
 984         }
 985
 986         /**
 987          * Language/charset variant links for classic-style skins
 988          * @return string
 989          */
 990         function variantLinks() {
 991                 $s = '';
 992                 /* show links to different language variants */
 993                 global $wgDisableLangConversion, $wgContLang, $wgTitle;
 994                 $variants = $wgContLang->getVariants();
 995                 if( !$wgDisableLangConversion && sizeof( $variants ) > 1 ) {
 996                         foreach( $variants as $code ) {
 997                                 $varname = $wgContLang->getVariantname( $code );
 998                                 if( $varname == 'disable' )
 999                                         continue;
1000                                 $s .= ' | <a href="' . $wgTitle->escapeLocalUrl( 'variant=' . $code ) . '">' . htmlspecialchars( $varname ) . '</a>';
1001                         }
1002                 }
1003                 return $s;
1004         }
1005
1006         function bottomLinks() {
1007                 global $wgOut, $wgUser, $wgTitle, $wgUseTrackbacks;
1008                 $sep = " |\n";
1009
1010                 $s = '';
1011                 if ( $wgOut->isArticleRelated() ) {
1012                         $s .= '<strong>' . $this->editThisPage() . '</strong>';
1013                         if ( $wgUser->isLoggedIn() ) {
1014                                 $s .= $sep . $this->watchThisPage();
1015                         }
1016                         $s .= $sep . $this->talkLink()
1017                           . $sep . $this->historyLink()
1018                           . $sep . $this->whatLinksHere()
1019                           . $sep . $this->watchPageLinksLink();
1020
1021                         if ($wgUseTrackbacks)
1022                                 $s .= $sep . $this->trackbackLink();
1023
1024                         if ( $wgTitle->getNamespace() == NS_USER
1025                             || $wgTitle->getNamespace() == NS_USER_TALK )
1026
1027                         {
1028                                 $id=User::idFromName($wgTitle->getText());
1029                                 $ip=User::isIP($wgTitle->getText());
1030
1031                                 if($id || $ip) { # both anons and non-anons have contri list
1032                                         $s .= $sep . $this->userContribsLink();
1033                                 }
1034                                 if( $this->showEmailUser( $id ) ) {
1035                                         $s .= $sep . $this->emailUserLink();
1036                                 }
1037                         }
1038                         if ( $wgTitle->getArticleId() ) {
1039                                 $s .= "\n<br />";
1040                                 if($wgUser->isAllowed('delete')) { $s .= $this->deleteThisPage(); }
1041                                 if($wgUser->isAllowed('protect')) { $s .= $sep . $this->protectThisPage(); }
1042                                 if($wgUser->isAllowed('move')) { $s .= $sep . $this->moveThisPage(); }
1043                         }
1044                         $s .= "<br />\n" . $this->otherLanguages();
1045                 }
1046                 return $s;
1047         }
1048
1049         function pageStats() {
1050                 global $wgOut, $wgLang, $wgArticle, $wgRequest, $wgUser;
1051                 global $wgDisableCounters, $wgMaxCredits, $wgShowCreditsIfMax, $wgTitle, $wgPageShowWatchingUsers;
1052
1053                 $oldid = $wgRequest->getVal( 'oldid' );
1054                 $diff = $wgRequest->getVal( 'diff' );
1055                 if ( ! $wgOut->isArticle() ) { return ''; }
1056                 if ( isset( $oldid ) || isset( $diff ) ) { return ''; }
1057                 if ( 0 == $wgArticle->getID() ) { return ''; }
1058
1059                 $s = '';
1060                 if ( !$wgDisableCounters ) {
1061                         $count = $wgLang->formatNum( $wgArticle->getCount() );
1062                         if ( $count ) {
1063                                 $s = wfMsgExt( 'viewcount', array( 'parseinline' ), $count );
1064                         }
1065                 }
1066
1067                 if (isset($wgMaxCredits) && $wgMaxCredits != 0) {
1068                     require_once('Credits.php');
1069                     $s .= ' ' . getCredits($wgArticle, $wgMaxCredits, $wgShowCreditsIfMax);
1070                 } else {
1071                     $s .= $this->lastModified();
1072                 }
1073
1074                 if ($wgPageShowWatchingUsers && $wgUser->getOption( 'shownumberswatching' )) {
1075                         $dbr = wfGetDB( DB_SLAVE );
1076                         $watchlist = $dbr->tableName( 'watchlist' );
1077                         $sql = "SELECT COUNT(*) AS n FROM $watchlist
1078                                 WHERE wl_title='" . $dbr->strencode($wgTitle->getDBKey()) .
1079                                 "' AND  wl_namespace=" . $wgTitle->getNamespace() ;
1080                         $res = $dbr->query( $sql, 'Skin::pageStats');
1081                         $x = $dbr->fetchObject( $res );
1082
1083                         $s .= ' ' . wfMsgExt( 'number_of_watching_users_pageview',
1084                                 array( 'parseinline' ), $wgLang->formatNum($x->n)
1085                         );
1086                 }
1087
1088                 return $s . ' ' .  $this->getCopyright();
1089         }
1090
1091         function getCopyright( $type = 'detect' ) {
1092                 global $wgRightsPage, $wgRightsUrl, $wgRightsText, $wgRequest;
1093
1094                 if ( $type == 'detect' ) {
1095                         $oldid = $wgRequest->getVal( 'oldid' );
1096                         $diff = $wgRequest->getVal( 'diff' );
1097
1098                         if ( !is_null( $oldid ) && is_null( $diff ) && wfMsgForContent( 'history_copyright' ) !== '-' ) {
1099                                 $type = 'history';
1100                         } else {
1101                                 $type = 'normal';
1102                         }
1103                 }
1104
1105                 if ( $type == 'history' ) {
1106                         $msg = 'history_copyright';
1107                 } else {
1108                         $msg = 'copyright';
1109                 }
1110
1111                 $out = '';
1112                 if( $wgRightsPage ) {
1113                         $link = $this->makeKnownLink( $wgRightsPage, $wgRightsText );
1114                 } elseif( $wgRightsUrl ) {
1115                         $link = $this->makeExternalLink( $wgRightsUrl, $wgRightsText );
1116                 } else {
1117                         # Give up now
1118                         return $out;
1119                 }
1120                 $out .= wfMsgForContent( $msg, $link );
1121                 return $out;
1122         }
1123
1124         function getCopyrightIcon() {
1125                 global $wgRightsUrl, $wgRightsText, $wgRightsIcon, $wgCopyrightIcon;
1126                 $out = '';
1127                 if ( isset( $wgCopyrightIcon ) && $wgCopyrightIcon ) {
1128                         $out = $wgCopyrightIcon;
1129                 } else if ( $wgRightsIcon ) {
1130                         $icon = htmlspecialchars( $wgRightsIcon );
1131                         if ( $wgRightsUrl ) {
1132                                 $url = htmlspecialchars( $wgRightsUrl );
1133                                 $out .= '<a href="'.$url.'">';
1134                         }
1135                         $text = htmlspecialchars( $wgRightsText );
1136                         $out .= "<img src=\"$icon\" alt='$text' />";
1137                         if ( $wgRightsUrl ) {
1138                                 $out .= '</a>';
1139                         }
1140                 }
1141                 return $out;
1142         }
1143
1144         function getPoweredBy() {
1145                 global $wgStylePath;
1146                 $url = htmlspecialchars( "$wgStylePath/common/images/poweredby_mediawiki_88x31.png" );
1147                 $img = '<a href="http://www.mediawiki.org/"><img src="'.$url.'" alt="Powered by MediaWiki" /></a>';
1148                 return $img;
1149         }
1150
1151         function lastModified() {
1152                 global $wgLang, $wgArticle, $wgLoadBalancer;
1153
1154                 $timestamp = $wgArticle->getTimestamp();
1155                 if ( $timestamp ) {
1156                         $d = $wgLang->date( $timestamp, true );
1157                         $t = $wgLang->time( $timestamp, true );
1158                         $s = ' ' . wfMsg( 'lastmodifiedat', $d, $t );
1159                 } else {
1160                         $s = '';
1161                 }
1162                 if ( $wgLoadBalancer->getLaggedSlaveMode() ) {
1163                         $s .= ' <strong>' . wfMsg( 'laggedslavemode' ) . '</strong>';
1164                 }
1165                 return $s;
1166         }
1167
1168         function logoText( $align = '' ) {
1169                 if ( '' != $align ) { $a = " align='{$align}'"; }
1170                 else { $a = ''; }
1171
1172                 $mp = wfMsg( 'mainpage' );
1173                 $mptitle = Title::newMainPage();
1174                 $url = ( is_object($mptitle) ? $mptitle->escapeLocalURL() : '' );
1175
1176                 $logourl = $this->getLogo();
1177                 $s = "<a href='{$url}'><img{$a} src='{$logourl}' alt='[{$mp}]' /></a>";
1178                 return $s;
1179         }
1180
1181         /**
1182          * show a drop-down box of special pages
1183          */
1184         function specialPagesList() {
1185                 global $wgUser, $wgContLang, $wgServer, $wgRedirectScript;
1186                 $pages = array_merge( SpecialPage::getRegularPages(), SpecialPage::getRestrictedPages() );
1187                 foreach ( $pages as $name => $page ) {
1188                         $pages[$name] = $page->getDescription();
1189                 }
1190
1191                 $go = wfMsg( 'go' );
1192                 $sp = wfMsg( 'specialpages' );
1193                 $spp = $wgContLang->specialPage( 'Specialpages' );
1194
1195                 $s = '<form id="specialpages" method="get" class="inline" ' .
1196                   'action="' . htmlspecialchars( "{$wgServer}{$wgRedirectScript}" ) . "\">\n";
1197                 $s .= "<select name=\"wpDropdown\">\n";
1198                 $s .= "<option value=\"{$spp}\">{$sp}</option>\n";
1199
1200
1201                 foreach ( $pages as $name => $desc ) {
1202                         $p = $wgContLang->specialPage( $name );
1203                         $s .= "<option value=\"{$p}\">{$desc}</option>\n";
1204                 }
1205                 $s .= "</select>\n";
1206                 $s .= "<input type='submit' value=\"{$go}\" name='redirect' />\n";
1207                 $s .= "</form>\n";
1208                 return $s;
1209         }
1210
1211         function mainPageLink() {
1212                 $s = $this->makeKnownLinkObj( Title::newMainPage(), wfMsg( 'mainpage' ) );
1213                 return $s;
1214         }
1215
1216         function copyrightLink() {
1217                 $s = $this->makeKnownLink( wfMsgForContent( 'copyrightpage' ),
1218                   wfMsg( 'copyrightpagename' ) );
1219                 return $s;
1220         }
1221
1222         private function footerLink ( $desc, $page ) {
1223                 // if the link description has been set to "-" in the default language,
1224                 if ( wfMsgForContent( $desc )  == '-') {
1225                         // then it is disabled, for all languages.
1226                         return '';
1227                 } else {
1228                         // Otherwise, we display the link for the user, described in their
1229                         // language (which may or may not be the same as the default language),
1230                         // but we make the link target be the one site-wide page.
1231                         return $this->makeKnownLink( wfMsgForContent( $page ),
1232                                 wfMsgExt( $desc, array( 'parsemag', 'escape' ) ) );
1233                 }
1234         }
1235
1236         function privacyLink() {
1237                 return $this->footerLink( 'privacy', 'privacypage' );
1238         }
1239
1240         function aboutLink() {
1241                 return $this->footerLink( 'aboutsite', 'aboutpage' );
1242         }
1243
1244         function disclaimerLink() {
1245                 return $this->footerLink( 'disclaimers', 'disclaimerpage' );
1246         }
1247
1248         function editThisPage() {
1249                 global $wgOut, $wgTitle;
1250
1251                 if ( ! $wgOut->isArticleRelated() ) {
1252                         $s = wfMsg( 'protectedpage' );
1253                 } else {
1254                         if ( $wgTitle->userCan( 'edit' ) ) {
1255                                 $t = wfMsg( 'editthispage' );
1256                         } else {
1257                                 $t = wfMsg( 'viewsource' );
1258                         }
1259
1260                         $s = $this->makeKnownLinkObj( $wgTitle, $t, $this->editUrlOptions() );
1261                 }
1262                 return $s;
1263         }
1264
1265         /**
1266          * Return URL options for the 'edit page' link.
1267          * This may include an 'oldid' specifier, if the current page view is such.
1268          *
1269          * @return string
1270          * @private
1271          */
1272         function editUrlOptions() {
1273                 global $wgArticle;
1274
1275                 if( $this->mRevisionId && ! $wgArticle->isCurrent() ) {
1276                         return "action=edit&oldid=" . intval( $this->mRevisionId );
1277                 } else {
1278                         return "action=edit";
1279                 }
1280         }
1281
1282         function deleteThisPage() {
1283                 global $wgUser, $wgTitle, $wgRequest;
1284
1285                 $diff = $wgRequest->getVal( 'diff' );
1286                 if ( $wgTitle->getArticleId() && ( ! $diff ) && $wgUser->isAllowed('delete') ) {
1287                         $t = wfMsg( 'deletethispage' );
1288
1289                         $s = $this->makeKnownLinkObj( $wgTitle, $t, 'action=delete' );
1290                 } else {
1291                         $s = '';
1292                 }
1293                 return $s;
1294         }
1295
1296         function protectThisPage() {
1297                 global $wgUser, $wgTitle, $wgRequest;
1298
1299                 $diff = $wgRequest->getVal( 'diff' );
1300                 if ( $wgTitle->getArticleId() && ( ! $diff ) && $wgUser->isAllowed('protect') ) {
1301                         if ( $wgTitle->isProtected() ) {
1302                                 $t = wfMsg( 'unprotectthispage' );
1303                                 $q = 'action=unprotect';
1304                         } else {
1305                                 $t = wfMsg( 'protectthispage' );
1306                                 $q = 'action=protect';
1307                         }
1308                         $s = $this->makeKnownLinkObj( $wgTitle, $t, $q );
1309                 } else {
1310                         $s = '';
1311                 }
1312                 return $s;
1313         }
1314
1315         function watchThisPage() {
1316                 global $wgOut, $wgTitle;
1317                 ++$this->mWatchLinkNum;
1318
1319                 if ( $wgOut->isArticleRelated() ) {
1320                         if ( $wgTitle->userIsWatching() ) {
1321                                 $t = wfMsg( 'unwatchthispage' );
1322                                 $q = 'action=unwatch';
1323                                 $id = "mw-unwatch-link".$this->mWatchLinkNum;
1324                         } else {
1325                                 $t = wfMsg( 'watchthispage' );
1326                                 $q = 'action=watch';
1327                                 $id = 'mw-watch-link'.$this->mWatchLinkNum;
1328                         }
1329                         $s = $this->makeKnownLinkObj( $wgTitle, $t, $q, '', '', " id=\"$id\"" );
1330                 } else {
1331                         $s = wfMsg( 'notanarticle' );
1332                 }
1333                 return $s;
1334         }
1335
1336         function moveThisPage() {
1337                 global $wgTitle;
1338
1339                 if ( $wgTitle->userCan( 'move' ) ) {
1340                         return $this->makeKnownLinkObj( SpecialPage::getTitleFor( 'Movepage' ),
1341                           wfMsg( 'movethispage' ), 'target=' . $wgTitle->getPrefixedURL() );
1342                 } else {
1343                         // no message if page is protected - would be redundant
1344                         return '';
1345                 }
1346         }
1347
1348         function historyLink() {
1349                 global $wgTitle;
1350
1351                 return $this->makeKnownLinkObj( $wgTitle,
1352                   wfMsg( 'history' ), 'action=history' );
1353         }
1354
1355         function whatLinksHere() {
1356                 global $wgTitle;
1357
1358                 return $this->makeKnownLinkObj(
1359                         SpecialPage::getTitleFor( 'Whatlinkshere', $wgTitle->getPrefixedDBkey() ),
1360                         wfMsg( 'whatlinkshere' ) );
1361         }
1362
1363         function userContribsLink() {
1364                 global $wgTitle;
1365
1366                 return $this->makeKnownLinkObj(
1367                         SpecialPage::getTitleFor( 'Contributions', $wgTitle->getDBkey() ),
1368                         wfMsg( 'contributions' ) );
1369         }
1370
1371         function showEmailUser( $id ) {
1372                 global $wgEnableEmail, $wgEnableUserEmail, $wgUser;
1373                 return $wgEnableEmail &&
1374                        $wgEnableUserEmail &&
1375                        $wgUser->isLoggedIn() && # show only to signed in users
1376                        0 != $id; # we can only email to non-anons ..
1377 #                      '' != $id->getEmail() && # who must have an email address stored ..
1378 #                      0 != $id->getEmailauthenticationtimestamp() && # .. which is authenticated
1379 #                      1 != $wgUser->getOption('disablemail'); # and not disabled
1380         }
1381
1382         function emailUserLink() {
1383                 global $wgTitle;
1384
1385                 return $this->makeKnownLinkObj(
1386                         SpecialPage::getTitleFor( 'Emailuser', $wgTitle->getDBkey() ),
1387                         wfMsg( 'emailuser' ) );
1388         }
1389
1390         function watchPageLinksLink() {
1391                 global $wgOut, $wgTitle;
1392
1393                 if ( ! $wgOut->isArticleRelated() ) {
1394                         return '(' . wfMsg( 'notanarticle' ) . ')';
1395                 } else {
1396                         return $this->makeKnownLinkObj(
1397                                 SpecialPage::getTitleFor( 'Recentchangeslinked', $wgTitle->getPrefixedDBkey() ),
1398                                 wfMsg( 'recentchangeslinked' ) );
1399                 }
1400         }
1401
1402         function trackbackLink() {
1403                 global $wgTitle;
1404
1405                 return "<a href=\"" . $wgTitle->trackbackURL() . "\">"
1406                         . wfMsg('trackbacklink') . "</a>";
1407         }
1408
1409         function otherLanguages() {
1410                 global $wgOut, $wgContLang, $wgHideInterlanguageLinks;
1411
1412                 if ( $wgHideInterlanguageLinks ) {
1413                         return '';
1414                 }
1415
1416                 $a = $wgOut->getLanguageLinks();
1417                 if ( 0 == count( $a ) ) {
1418                         return '';
1419                 }
1420
1421                 $s = wfMsg( 'otherlanguages' ) . ': ';
1422                 $first = true;
1423                 if($wgContLang->isRTL()) $s .= '<span dir="LTR">';
1424                 foreach( $a as $l ) {
1425                         if ( ! $first ) { $s .= ' | '; }
1426                         $first = false;
1427
1428                         $nt = Title::newFromText( $l );
1429                         $url = $nt->escapeFullURL();
1430                         $text = $wgContLang->getLanguageName( $nt->getInterwiki() );
1431
1432                         if ( '' == $text ) { $text = $l; }
1433                         $style = $this->getExternalLinkAttributes( $l, $text );
1434                         $s .= "<a href=\"{$url}\"{$style}>{$text}</a>";
1435                 }
1436                 if($wgContLang->isRTL()) $s .= '</span>';
1437                 return $s;
1438         }
1439
1440         function bugReportsLink() {
1441                 $s = $this->makeKnownLink( wfMsgForContent( 'bugreportspage' ),
1442                   wfMsg( 'bugreports' ) );
1443                 return $s;
1444         }
1445
1446         function talkLink() {
1447                 global $wgTitle;
1448
1449                 if ( NS_SPECIAL == $wgTitle->getNamespace() ) {
1450                         # No discussion links for special pages
1451                         return '';
1452                 }
1453
1454                 if( $wgTitle->isTalkPage() ) {
1455                         $link = $wgTitle->getSubjectPage();
1456                         switch( $link->getNamespace() ) {
1457                                 case NS_MAIN:
1458                                         $text = wfMsg( 'articlepage' );
1459                                         break;
1460                                 case NS_USER:
1461                                         $text = wfMsg( 'userpage' );
1462                                         break;
1463                                 case NS_PROJECT:
1464                                         $text = wfMsg( 'projectpage' );
1465                                         break;
1466                                 case NS_IMAGE:
1467                                         $text = wfMsg( 'imagepage' );
1468                                         break;
1469                                 case NS_MEDIAWIKI:
1470                                         $text = wfMsg( 'mediawikipage' );
1471                                         break;
1472                                 case NS_TEMPLATE:
1473                                         $text = wfMsg( 'templatepage' );
1474                                         break;
1475                                 case NS_HELP:
1476                                         $text = wfMsg( 'viewhelppage' );
1477                                         break;
1478                                 case NS_CATEGORY:
1479                                         $text = wfMsg( 'categorypage' );
1480                                         break;
1481                                 default:
1482                                         $text = wfMsg( 'articlepage' );
1483                         }
1484                 } else {
1485                         $link = $wgTitle->getTalkPage();
1486                         $text = wfMsg( 'talkpage' );
1487                 }
1488
1489                 $s = $this->makeLinkObj( $link, $text );
1490
1491                 return $s;
1492         }
1493
1494         function commentLink() {
1495                 global $wgTitle, $wgOut;
1496
1497                 if ( $wgTitle->getNamespace() == NS_SPECIAL ) {
1498                         return '';
1499                 }
1500
1501                 # __NEWSECTIONLINK___ changes behaviour here
1502                 # If it's present, the link points to this page, otherwise
1503                 # it points to the talk page
1504                 if( $wgTitle->isTalkPage() ) {
1505                         $title =& $wgTitle;
1506                 } elseif( $wgOut->showNewSectionLink() ) {
1507                         $title =& $wgTitle;
1508                 } else {
1509                         $title =& $wgTitle->getTalkPage();
1510                 }
1511
1512                 return $this->makeKnownLinkObj( $title, wfMsg( 'postcomment' ), 'action=edit&section=new' );
1513         }
1514
1515         /* these are used extensively in SkinTemplate, but also some other places */
1516         static function makeMainPageUrl( $urlaction = '' ) {
1517                 $title = Title::newMainPage();
1518                 self::checkTitle( $title, '' );
1519                 return $title->getLocalURL( $urlaction );
1520         }
1521
1522         static function makeSpecialUrl( $name, $urlaction = '' ) {
1523                 $title = SpecialPage::getTitleFor( $name );
1524                 return $title->getLocalURL( $urlaction );
1525         }
1526
1527         static function makeSpecialUrlSubpage( $name, $subpage, $urlaction = '' ) {
1528                 $title = SpecialPage::getSafeTitleFor( $name, $subpage );
1529                 return $title->getLocalURL( $urlaction );
1530         }
1531
1532         static function makeI18nUrl( $name, $urlaction = '' ) {
1533                 $title = Title::newFromText( wfMsgForContent( $name ) );
1534                 self::checkTitle( $title, $name );
1535                 return $title->getLocalURL( $urlaction );
1536         }
1537
1538         static function makeUrl( $name, $urlaction = '' ) {
1539                 $title = Title::newFromText( $name );
1540                 self::checkTitle( $title, $name );
1541                 return $title->getLocalURL( $urlaction );
1542         }
1543
1544         # If url string starts with http, consider as external URL, else
1545         # internal
1546         static function makeInternalOrExternalUrl( $name ) {
1547                 if ( preg_match( '/^(?:' . wfUrlProtocols() . ')/', $name ) ) {
1548                         return $name;
1549                 } else {
1550                         return self::makeUrl( $name );
1551                 }
1552         }
1553
1554         # this can be passed the NS number as defined in Language.php
1555         static function makeNSUrl( $name, $urlaction = '', $namespace = NS_MAIN ) {
1556                 $title = Title::makeTitleSafe( $namespace, $name );
1557                 self::checkTitle( $title, $name );
1558                 return $title->getLocalURL( $urlaction );
1559         }
1560
1561         /* these return an array with the 'href' and boolean 'exists' */
1562         static function makeUrlDetails( $name, $urlaction = '' ) {
1563                 $title = Title::newFromText( $name );
1564                 self::checkTitle( $title, $name );
1565                 return array(
1566                         'href' => $title->getLocalURL( $urlaction ),
1567                         'exists' => $title->getArticleID() != 0 ? true : false
1568                 );
1569         }
1570
1571         /**
1572          * Make URL details where the article exists (or at least it's convenient to think so)
1573          */
1574         static function makeKnownUrlDetails( $name, $urlaction = '' ) {
1575                 $title = Title::newFromText( $name );
1576                 self::checkTitle( $title, $name );
1577                 return array(
1578                         'href' => $title->getLocalURL( $urlaction ),
1579                         'exists' => true
1580                 );
1581         }
1582
1583         # make sure we have some title to operate on
1584         static function checkTitle( &$title, $name ) {
1585                 if( !is_object( $title ) ) {
1586                         $title = Title::newFromText( $name );
1587                         if( !is_object( $title ) ) {
1588                                 $title = Title::newFromText( '--error: link target missing--' );
1589                         }
1590                 }
1591         }
1592
1593         /**
1594          * Build an array that represents the sidebar(s), the navigation bar among them
1595          *
1596          * @return array
1597          * @private
1598          */
1599         function buildSidebar() {
1600                 global $parserMemc, $wgEnableSidebarCache;
1601                 global $wgLang, $wgContLang;
1602
1603                 $fname = 'SkinTemplate::buildSidebar';
1604
1605                 wfProfileIn( $fname );
1606
1607                 $key = wfMemcKey( 'sidebar' );
1608                 $cacheSidebar = $wgEnableSidebarCache &&
1609                         ($wgLang->getCode() == $wgContLang->getCode());
1610
1611                 if ($cacheSidebar) {
1612                         $cachedsidebar = $parserMemc->get( $key );
1613                         if ($cachedsidebar!="") {
1614                                 wfProfileOut($fname);
1615                                 return $cachedsidebar;
1616                         }
1617                 }
1618
1619                 $bar = array();
1620                 $lines = explode( "\n", wfMsgForContent( 'sidebar' ) );
1621                 foreach ($lines as $line) {
1622                         if (strpos($line, '*') !== 0)
1623                                 continue;
1624                         if (strpos($line, '**') !== 0) {
1625                                 $line = trim($line, '* ');
1626                                 $heading = $line;
1627                         } else {
1628                                 if (strpos($line, '|') !== false) { // sanity check
1629                                         $line = explode( '|' , trim($line, '* '), 2 );
1630                                         $link = wfMsgForContent( $line[0] );
1631                                         if ($link == '-')
1632                                                 continue;
1633                                         if (wfEmptyMsg($line[1], $text = wfMsg($line[1])))
1634                                                 $text = $line[1];
1635                                         if (wfEmptyMsg($line[0], $link))
1636                                                 $link = $line[0];
1637
1638                                         if ( preg_match( '/^(?:' . wfUrlProtocols() . ')/', $link ) ) {
1639                                                 $href = $link;
1640                                         } else {
1641                                                 $title = Title::newFromText( $link );
1642                                                 if ( $title ) {
1643                                                         $title = $title->fixSpecialName();
1644                                                         $href = $title->getLocalURL();
1645                                                 } else {
1646                                                         $href = 'INVALID-TITLE';
1647                                                 }
1648                                         }
1649
1650                                         $bar[$heading][] = array(
1651                                                 'text' => $text,
1652                                                 'href' => $href,
1653                                                 'id' => 'n-' . strtr($line[1], ' ', '-'),
1654                                                 'active' => false
1655                                         );
1656                                 } else { continue; }
1657                         }
1658                 }
1659                 if ($cacheSidebar)
1660                         $parserMemc->set( $key, $bar, 86400 );
1661                 wfProfileOut( $fname );
1662                 return $bar;
1663         }
1664
1665 }