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 $mWatchLinkNum = 0; // Appended to end of watch link id's
  20         /**#@-*/
  21         protected $mRevisionId; // The revision ID we're looking at, null if not applicable.
  22         protected $skinname = 'standard' ;
  23
  24         /** Constructor, call parent constructor */
  25         function Skin() { parent::__construct(); }
  26
  27         /**
  28          * Fetch the set of available skins.
  29          * @return array of strings
  30          * @static
  31          */
  32         static function getSkinNames() {
  33                 global $wgValidSkinNames;
  34                 static $skinsInitialised = false;
  35                 if ( !$skinsInitialised ) {
  36                         # Get a list of available skins
  37                         # Build using the regular expression '^(.*).php$'
  38                         # Array keys are all lower case, array value keep the case used by filename
  39                         #
  40                         wfProfileIn( __METHOD__ . '-init' );
  41                         global $wgStyleDirectory;
  42                         $skinDir = dir( $wgStyleDirectory );
  43
  44                         # while code from www.php.net
  45                         while (false !== ($file = $skinDir->read())) {
  46                                 // Skip non-PHP files, hidden files, and '.dep' includes
  47                                 $matches = array();
  48                                 if(preg_match('/^([^.]*)\.php$/',$file, $matches)) {
  49                                         $aSkin = $matches[1];
  50                                         $wgValidSkinNames[strtolower($aSkin)] = $aSkin;
  51                                 }
  52                         }
  53                         $skinDir->close();
  54                         $skinsInitialised = true;
  55                         wfProfileOut( __METHOD__ . '-init' );
  56                 }
  57                 return $wgValidSkinNames;
  58         }
  59
  60         /**
  61          * Normalize a skin preference value to a form that can be loaded.
  62          * If a skin can't be found, it will fall back to the configured
  63          * default (or the old 'Classic' skin if that's broken).
  64          * @param string $key
  65          * @return string
  66          * @static
  67          */
  68         static function normalizeKey( $key ) {
  69                 global $wgDefaultSkin;
  70                 $skinNames = Skin::getSkinNames();
  71
  72                 if( $key == '' ) {
  73                         // Don't return the default immediately;
  74                         // in a misconfiguration we need to fall back.
  75                         $key = $wgDefaultSkin;
  76                 }
  77
  78                 if( isset( $skinNames[$key] ) ) {
  79                         return $key;
  80                 }
  81
  82                 // Older versions of the software used a numeric setting
  83                 // in the user preferences.
  84                 $fallback = array(
  85                         0 => $wgDefaultSkin,
  86                         1 => 'nostalgia',
  87                         2 => 'cologneblue' );
  88
  89                 if( isset( $fallback[$key] ) ){
  90                         $key = $fallback[$key];
  91                 }
  92
  93                 if( isset( $skinNames[$key] ) ) {
  94                         return $key;
  95                 } else {
  96                         return 'monobook';
  97                 }
  98         }
  99
 100         /**
 101          * Factory method for loading a skin of a given type
 102          * @param string $key 'monobook', 'standard', etc
 103          * @return Skin
 104          * @static
 105          */
 106         static function &newFromKey( $key ) {
 107                 global $wgStyleDirectory;
 108
 109                 $key = Skin::normalizeKey( $key );
 110
 111                 $skinNames = Skin::getSkinNames();
 112                 $skinName = $skinNames[$key];
 113                 $className = 'Skin'.ucfirst($key);
 114
 115                 # Grab the skin class and initialise it.
 116                 if ( !class_exists( $className ) ) {
 117                         // Preload base classes to work around APC/PHP5 bug
 118                         $deps = "{$wgStyleDirectory}/{$skinName}.deps.php";
 119                         if( file_exists( $deps ) ) include_once( $deps );
 120                         require_once( "{$wgStyleDirectory}/{$skinName}.php" );
 121
 122                         # Check if we got if not failback to default skin
 123                         if( !class_exists( $className ) ) {
 124                                 # DO NOT die if the class isn't found. This breaks maintenance
 125                                 # scripts and can cause a user account to be unrecoverable
 126                                 # except by SQL manipulation if a previously valid skin name
 127                                 # is no longer valid.
 128                                 wfDebug( "Skin class does not exist: $className\n" );
 129                                 $className = 'SkinMonobook';
 130                                 require_once( "{$wgStyleDirectory}/MonoBook.php" );
 131                         }
 132                 }
 133                 $skin = new $className;
 134                 return $skin;
 135         }
 136
 137         /** @return string path to the skin stylesheet */
 138         function getStylesheet() {
 139                 return 'common/wikistandard.css';
 140         }
 141
 142         /** @return string skin name */
 143         public function getSkinName() {
 144                 return $this->skinname;
 145         }
 146
 147         function qbSetting() {
 148                 global $wgOut, $wgUser;
 149
 150                 if ( $wgOut->isQuickbarSuppressed() ) { return 0; }
 151                 $q = $wgUser->getOption( 'quickbar', 0 );
 152                 return $q;
 153         }
 154
 155         function initPage( &$out ) {
 156                 global $wgFavicon, $wgScriptPath, $wgSitename, $wgContLang;
 157
 158                 wfProfileIn( __METHOD__ );
 159
 160                 if( false !== $wgFavicon ) {
 161                         $out->addLink( array( 'rel' => 'shortcut icon', 'href' => $wgFavicon ) );
 162                 }
 163
 164                 $code = $wgContLang->getCode();
 165                 $name = $wgContLang->getLanguageName( $code );
 166                 $langName = $name ? $name : $code;
 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' => "$wgSitename ($langName)",
 174                 ));
 175
 176                 $this->addMetadataLinks($out);
 177
 178                 $this->mRevisionId = $out->mRevisionId;
 179
 180                 $this->preloadExistence();
 181
 182                 wfProfileOut( __METHOD__ );
 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                         'wgMWVersion' => SpecialVersion::getVersion(),
 329                 );
 330
 331                 global $wgLivePreview;
 332                 if ( $wgLivePreview && $wgUser->getOption( 'uselivepreview' ) ) {
 333                         $vars['wgLivepreviewMessageLoading'] = wfMsg( 'livepreview-loading' );
 334                         $vars['wgLivepreviewMessageReady']   = wfMsg( 'livepreview-ready' );
 335                         $vars['wgLivepreviewMessageFailed']  = wfMsg( 'livepreview-failed' );
 336                         $vars['wgLivepreviewMessageError']   = wfMsg( 'livepreview-error' );
 337                 }
 338
 339                 if($wgUseAjax && $wgAjaxWatch && $wgUser->isLoggedIn() ) {
 340                         $msgs = (object)array();
 341                         foreach ( array( 'watch', 'unwatch', 'watching', 'unwatching' ) as $msgName ) {
 342                                 $msgs->{$msgName . 'Msg'} = wfMsg( $msgName );
 343                         }
 344                         $vars['wgAjaxWatch'] = $msgs;
 345                 }
 346
 347                 return self::makeVariablesScript( $vars );
 348         }
 349
 350         function getHeadScripts( $allowUserJs ) {
 351                 global $wgStylePath, $wgUser, $wgJsMimeType, $wgStyleVersion;
 352
 353                 $r = self::makeGlobalVariablesScript( array( 'skinname' => $this->getSkinName() ) );
 354
 355                 $r .= "<script type=\"{$wgJsMimeType}\" src=\"{$wgStylePath}/common/wikibits.js?$wgStyleVersion\"></script>\n";
 356                 global $wgUseSiteJs;
 357                 if ($wgUseSiteJs) {
 358                         $jsCache = $wgUser->isLoggedIn() ? '&smaxage=0' : '';
 359                         $r .= "<script type=\"$wgJsMimeType\" src=\"".
 360                                 htmlspecialchars(self::makeUrl('-',
 361                                         "action=raw$jsCache&gen=js&useskin=" .
 362                                         urlencode( $this->getSkinName() ) ) ) .
 363                                 "\"><!-- site js --></script>\n";
 364                 }
 365                 if( $allowUserJs && $wgUser->isLoggedIn() ) {
 366                         $userpage = $wgUser->getUserPage();
 367                         $userjs = htmlspecialchars( self::makeUrl(
 368                                 $userpage->getPrefixedText().'/'.$this->getSkinName().'.js',
 369                                 'action=raw&ctype='.$wgJsMimeType));
 370                         $r .= '<script type="'.$wgJsMimeType.'" src="'.$userjs."\"></script>\n";
 371                 }
 372                 return $r;
 373         }
 374
 375         /**
 376          * To make it harder for someone to slip a user a fake
 377          * user-JavaScript or user-CSS preview, a random token
 378          * is associated with the login session. If it's not
 379          * passed back with the preview request, we won't render
 380          * the code.
 381          *
 382          * @param string $action
 383          * @return bool
 384          * @private
 385          */
 386         function userCanPreview( $action ) {
 387                 global $wgTitle, $wgRequest, $wgUser;
 388
 389                 if( $action != 'submit' )
 390                         return false;
 391                 if( !$wgRequest->wasPosted() )
 392                         return false;
 393                 if( !$wgTitle->userCanEditCssJsSubpage() )
 394                         return false;
 395                 return $wgUser->matchEditToken(
 396                         $wgRequest->getVal( 'wpEditToken' ) );
 397         }
 398
 399         # get the user/site-specific stylesheet, SkinTemplate loads via RawPage.php (settings are cached that way)
 400         function getUserStylesheet() {
 401                 global $wgStylePath, $wgRequest, $wgContLang, $wgSquidMaxage, $wgStyleVersion;
 402                 $sheet = $this->getStylesheet();
 403                 $s = "@import \"$wgStylePath/common/shared.css?$wgStyleVersion\";\n";
 404                 $s .= "@import \"$wgStylePath/common/oldshared.css?$wgStyleVersion\";\n";
 405                 $s .= "@import \"$wgStylePath/$sheet?$wgStyleVersion\";\n";
 406                 if($wgContLang->isRTL()) $s .= "@import \"$wgStylePath/common/common_rtl.css?$wgStyleVersion\";\n";
 407
 408                 $query = "usemsgcache=yes&action=raw&ctype=text/css&smaxage=$wgSquidMaxage";
 409                 $s .= '@import "' . self::makeNSUrl( 'Common.css', $query, NS_MEDIAWIKI ) . "\";\n" .
 410                         '@import "' . self::makeNSUrl( ucfirst( $this->getSkinName() . '.css' ), $query, NS_MEDIAWIKI ) . "\";\n";
 411
 412                 $s .= $this->doGetUserStyles();
 413                 return $s."\n";
 414         }
 415
 416         /**
 417          * This returns MediaWiki:Common.js, and derived classes may add other JS.
 418          * Despite its name, it does *not* return any custom user JS from user
 419          * subpages.  The returned script is sitewide and publicly cacheable and
 420          * therefore must not include anything that varies according to user,
 421          * interface language, etc. (although it may vary by skin).  See
 422          * makeGlobalVariablesScript for things that can vary per page view and are
 423          * not cacheable.
 424          *
 425          * @return string Raw JavaScript to be returned
 426          */
 427         public function getUserJs() {
 428                 wfProfileIn( __METHOD__ );
 429
 430                 global $wgStylePath;
 431                 $s = "/* generated javascript */\n";
 432                 $s .= "var skin = '" . Xml::escapeJsString( $this->getSkinName() ) . "';\n";
 433                 $s .= "var stylepath = '" . Xml::escapeJsString( $wgStylePath ) . "';";
 434                 $s .= "\n\n/* MediaWiki:Common.js */\n";
 435                 $commonJs = wfMsgForContent('common.js');
 436                 if ( !wfEmptyMsg ( 'common.js', $commonJs ) ) {
 437                         $s .= $commonJs;
 438                 }
 439                 wfProfileOut( __METHOD__ );
 440                 return $s;
 441         }
 442
 443         /**
 444          * Return html code that include User stylesheets
 445          */
 446         function getUserStyles() {
 447                 $s = "<style type='text/css'>\n";
 448                 $s .= "/*/*/ /*<![CDATA[*/\n"; # <-- Hide the styles from Netscape 4 without hiding them from IE/Mac
 449                 $s .= $this->getUserStylesheet();
 450                 $s .= "/*]]>*/ /* */\n";
 451                 $s .= "</style>\n";
 452                 return $s;
 453         }
 454
 455         /**
 456          * Some styles that are set by user through the user settings interface.
 457          */
 458         function doGetUserStyles() {
 459                 global $wgUser, $wgUser, $wgRequest, $wgTitle, $wgAllowUserCss;
 460
 461                 $s = '';
 462
 463                 if( $wgAllowUserCss && $wgUser->isLoggedIn() ) { # logged in
 464                         if($wgTitle->isCssSubpage() && $this->userCanPreview( $wgRequest->getText( 'action' ) ) ) {
 465                                 $s .= $wgRequest->getText('wpTextbox1');
 466                         } else {
 467                                 $userpage = $wgUser->getUserPage();
 468                                 $s.= '@import "'.self::makeUrl(
 469                                         $userpage->getPrefixedText().'/'.$this->getSkinName().'.css',
 470                                         'action=raw&ctype=text/css').'";'."\n";
 471                         }
 472                 }
 473
 474                 return $s . $this->reallyDoGetUserStyles();
 475         }
 476
 477         function reallyDoGetUserStyles() {
 478                 global $wgUser;
 479                 $s = '';
 480                 if (($undopt = $wgUser->getOption("underline")) < 2) {
 481                         $underline = $undopt ? 'underline' : 'none';
 482                         $s .= "a { text-decoration: $underline; }\n";
 483                 }
 484                 if( $wgUser->getOption( 'highlightbroken' ) ) {
 485                         $s .= "a.new, #quickbar a.new { color: #CC2200; }\n";
 486                 } else {
 487                         $s .= <<<END
 488 a.new, #quickbar a.new,
 489 a.stub, #quickbar a.stub {
 490         color: inherit;
 491 }
 492 a.new:after, #quickbar a.new:after {
 493         content: "?";
 494         color: #CC2200;
 495 }
 496 a.stub:after, #quickbar a.stub:after {
 497         content: "!";
 498         color: #772233;
 499 }
 500 END;
 501                 }
 502                 if( $wgUser->getOption( 'justify' ) ) {
 503                         $s .= "#article, #bodyContent { text-align: justify; }\n";
 504                 }
 505                 if( !$wgUser->getOption( 'showtoc' ) ) {
 506                         $s .= "#toc { display: none; }\n";
 507                 }
 508                 if( !$wgUser->getOption( 'editsection' ) ) {
 509                         $s .= ".editsection { display: none; }\n";
 510                 }
 511                 return $s;
 512         }
 513
 514         function getBodyOptions() {
 515                 global $wgUser, $wgTitle, $wgOut, $wgRequest, $wgContLang;
 516
 517                 extract( $wgRequest->getValues( 'oldid', 'redirect', 'diff' ) );
 518
 519                 if ( 0 != $wgTitle->getNamespace() ) {
 520                         $a = array( 'bgcolor' => '#ffffec' );
 521                 }
 522                 else $a = array( 'bgcolor' => '#FFFFFF' );
 523                 if($wgOut->isArticle() && $wgUser->getOption('editondblclick') &&
 524                   $wgTitle->userCan( 'edit' ) ) {
 525                         $s = $wgTitle->getFullURL( $this->editUrlOptions() );
 526                         $s = 'document.location = "' .wfEscapeJSString( $s ) .'";';
 527                         $a += array ('ondblclick' => $s);
 528
 529                 }
 530                 $a['onload'] = $wgOut->getOnloadHandler();
 531                 if( $wgUser->getOption( 'editsectiononrightclick' ) ) {
 532                         if( $a['onload'] != '' ) {
 533                                 $a['onload'] .= ';';
 534                         }
 535                         $a['onload'] .= 'setupRightClickEdit()';
 536                 }
 537                 $a['class'] = 'ns-'.$wgTitle->getNamespace().' '.($wgContLang->isRTL() ? "rtl" : "ltr").
 538                 ' '.Sanitizer::escapeClass( 'page-'.$wgTitle->getPrefixedText() );
 539                 return $a;
 540         }
 541
 542         /**
 543          * URL to the logo
 544          */
 545         function getLogo() {
 546                 global $wgLogo;
 547                 return $wgLogo;
 548         }
 549
 550         /**
 551          * This will be called immediately after the <body> tag.  Split into
 552          * two functions to make it easier to subclass.
 553          */
 554         function beforeContent() {
 555                 return $this->doBeforeContent();
 556         }
 557
 558         function doBeforeContent() {
 559                 global $wgContLang;
 560                 $fname = 'Skin::doBeforeContent';
 561                 wfProfileIn( $fname );
 562
 563                 $s = '';
 564                 $qb = $this->qbSetting();
 565
 566                 if( $langlinks = $this->otherLanguages() ) {
 567                         $rows = 2;
 568                         $borderhack = '';
 569                 } else {
 570                         $rows = 1;
 571                         $langlinks = false;
 572                         $borderhack = 'class="top"';
 573                 }
 574
 575                 $s .= "\n<div id='content'>\n<div id='topbar'>\n" .
 576                   "<table border='0' cellspacing='0' width='98%'>\n<tr>\n";
 577
 578                 $shove = ($qb != 0);
 579                 $left = ($qb == 1 || $qb == 3);
 580                 if($wgContLang->isRTL()) $left = !$left;
 581
 582                 if ( !$shove ) {
 583                         $s .= "<td class='top' align='left' valign='top' rowspan='{$rows}'>\n" .
 584                           $this->logoText() . '</td>';
 585                 } elseif( $left ) {
 586                         $s .= $this->getQuickbarCompensator( $rows );
 587                 }
 588                 $l = $wgContLang->isRTL() ? 'right' : 'left';
 589                 $s .= "<td {$borderhack} align='$l' valign='top'>\n";
 590
 591                 $s .= $this->topLinks() ;
 592                 $s .= "<p class='subtitle'>" . $this->pageTitleLinks() . "</p>\n";
 593
 594                 $r = $wgContLang->isRTL() ? "left" : "right";
 595                 $s .= "</td>\n<td {$borderhack} valign='top' align='$r' nowrap='nowrap'>";
 596                 $s .= $this->nameAndLogin();
 597                 $s .= "\n<br />" . $this->searchForm() . "</td>";
 598
 599                 if ( $langlinks ) {
 600                         $s .= "</tr>\n<tr>\n<td class='top' colspan=\"2\">$langlinks</td>\n";
 601                 }
 602
 603                 if ( $shove && !$left ) { # Right
 604                         $s .= $this->getQuickbarCompensator( $rows );
 605                 }
 606                 $s .= "</tr>\n</table>\n</div>\n";
 607                 $s .= "\n<div id='article'>\n";
 608
 609                 $notice = wfGetSiteNotice();
 610                 if( $notice ) {
 611                         $s .= "\n<div id='siteNotice'>$notice</div>\n";
 612                 }
 613                 $s .= $this->pageTitle();
 614                 $s .= $this->pageSubtitle() ;
 615                 $s .= $this->getCategories();
 616                 wfProfileOut( $fname );
 617                 return $s;
 618         }
 619
 620
 621         function getCategoryLinks () {
 622                 global $wgOut, $wgTitle, $wgUseCategoryBrowser;
 623                 global $wgContLang;
 624
 625                 if( count( $wgOut->mCategoryLinks ) == 0 ) return '';
 626
 627                 # Separator
 628                 $sep = wfMsgHtml( 'catseparator' );
 629
 630                 // Use Unicode bidi embedding override characters,
 631                 // to make sure links don't smash each other up in ugly ways.
 632                 $dir = $wgContLang->isRTL() ? 'rtl' : 'ltr';
 633                 $embed = "<span dir='$dir'>";
 634                 $pop = '</span>';
 635                 $t = $embed . implode ( "{$pop} {$sep} {$embed}" , $wgOut->mCategoryLinks ) . $pop;
 636
 637                 $msg = wfMsgExt( 'pagecategories', array( 'parsemag', 'escape' ), count( $wgOut->mCategoryLinks ) );
 638                 $s = $this->makeLinkObj( Title::newFromText( wfMsgForContent('pagecategorieslink') ), $msg )
 639                         . ': ' . $t;
 640
 641                 # optional 'dmoz-like' category browser. Will be shown under the list
 642                 # of categories an article belong to
 643                 if($wgUseCategoryBrowser) {
 644                         $s .= '<br /><hr />';
 645
 646                         # get a big array of the parents tree
 647                         $parenttree = $wgTitle->getParentCategoryTree();
 648                         # Skin object passed by reference cause it can not be
 649                         # accessed under the method subfunction drawCategoryBrowser
 650                         $tempout = explode("\n", Skin::drawCategoryBrowser($parenttree, $this) );
 651                         # Clean out bogus first entry and sort them
 652                         unset($tempout[0]);
 653                         asort($tempout);
 654                         # Output one per line
 655                         $s .= implode("<br />\n", $tempout);
 656                 }
 657
 658                 return $s;
 659         }
 660
 661         /** Render the array as a serie of links.
 662          * @param $tree Array: categories tree returned by Title::getParentCategoryTree
 663          * @param &skin Object: skin passed by reference
 664          * @return String separated by &gt;, terminate with "\n"
 665          */
 666         function drawCategoryBrowser($tree, &$skin) {
 667                 $return = '';
 668                 foreach ($tree as $element => $parent) {
 669                         if (empty($parent)) {
 670                                 # element start a new list
 671                                 $return .= "\n";
 672                         } else {
 673                                 # grab the others elements
 674                                 $return .= Skin::drawCategoryBrowser($parent, $skin) . ' &gt; ';
 675                         }
 676                         # add our current element to the list
 677                         $eltitle = Title::NewFromText($element);
 678                         $return .=  $skin->makeLinkObj( $eltitle, $eltitle->getText() ) ;
 679                 }
 680                 return $return;
 681         }
 682
 683         function getCategories() {
 684                 $catlinks=$this->getCategoryLinks();
 685                 if(!empty($catlinks)) {
 686                         return "<p class='catlinks'>{$catlinks}</p>";
 687                 }
 688         }
 689
 690         function getQuickbarCompensator( $rows = 1 ) {
 691                 return "<td width='152' rowspan='{$rows}'>&nbsp;</td>";
 692         }
 693
 694         /**
 695          * This gets called shortly before the \</body\> tag.
 696          * @return String HTML to be put before \</body\>
 697          */
 698         function afterContent() {
 699                 $printfooter = "<div class=\"printfooter\">\n" . $this->printFooter() . "</div>\n";
 700                 return $printfooter . $this->doAfterContent();
 701         }
 702
 703         /**
 704          * This gets called shortly before the \</body\> tag.
 705          * @return String HTML-wrapped JS code to be put before \</body\>
 706          */
 707         function bottomScripts() {
 708                 global $wgJsMimeType;
 709                 $bottomScriptText = "\n\t\t<script type=\"$wgJsMimeType\">if (window.runOnloadHook) runOnloadHook();</script>\n";
 710                 wfRunHooks( 'SkinAfterBottomScripts', array( $this, &$bottomScriptText ) );
 711                 return $bottomScriptText;
 712         }
 713
 714         /** @return string Retrievied from HTML text */
 715         function printSource() {
 716                 global $wgTitle;
 717                 $url = htmlspecialchars( $wgTitle->getFullURL() );
 718                 return wfMsg( 'retrievedfrom', '<a href="'.$url.'">'.$url.'</a>' );
 719         }
 720
 721         function printFooter() {
 722                 return "<p>" .  $this->printSource() .
 723                         "</p>\n\n<p>" . $this->pageStats() . "</p>\n";
 724         }
 725
 726         /** overloaded by derived classes */
 727         function doAfterContent() { }
 728
 729         function pageTitleLinks() {
 730                 global $wgOut, $wgTitle, $wgUser, $wgRequest;
 731
 732                 $oldid = $wgRequest->getVal( 'oldid' );
 733                 $diff = $wgRequest->getVal( 'diff' );
 734                 $action = $wgRequest->getText( 'action' );
 735
 736                 $s = $this->printableLink();
 737                 $disclaimer = $this->disclaimerLink(); # may be empty
 738                 if( $disclaimer ) {
 739                         $s .= ' | ' . $disclaimer;
 740                 }
 741                 $privacy = $this->privacyLink(); # may be empty too
 742                 if( $privacy ) {
 743                         $s .= ' | ' . $privacy;
 744                 }
 745
 746                 if ( $wgOut->isArticleRelated() ) {
 747                         if ( $wgTitle->getNamespace() == NS_IMAGE ) {
 748                                 $name = $wgTitle->getDBkey();
 749                                 $image = wfFindFile( $wgTitle );
 750                                 if( $image ) {
 751                                         $link = htmlspecialchars( $image->getURL() );
 752                                         $style = $this->getInternalLinkAttributes( $link, $name );
 753                                         $s .= " | <a href=\"{$link}\"{$style}>{$name}</a>";
 754                                 }
 755                         }
 756                 }
 757                 if ( 'history' == $action || isset( $diff ) || isset( $oldid ) ) {
 758                         $s .= ' | ' . $this->makeKnownLinkObj( $wgTitle,
 759                                         wfMsg( 'currentrev' ) );
 760                 }
 761
 762                 if ( $wgUser->getNewtalk() ) {
 763                         # do not show "You have new messages" text when we are viewing our
 764                         # own talk page
 765                         if( !$wgTitle->equals( $wgUser->getTalkPage() ) ) {
 766                                 $tl = $this->makeKnownLinkObj( $wgUser->getTalkPage(), wfMsgHtml( 'newmessageslink' ), 'redirect=no' );
 767                                 $dl = $this->makeKnownLinkObj( $wgUser->getTalkPage(), wfMsgHtml( 'newmessagesdifflink' ), 'diff=cur' );
 768                                 $s.= ' | <strong>'. wfMsg( 'youhavenewmessages', $tl, $dl ) . '</strong>';
 769                                 # disable caching
 770                                 $wgOut->setSquidMaxage(0);
 771                                 $wgOut->enableClientCache(false);
 772                         }
 773                 }
 774
 775                 $undelete = $this->getUndeleteLink();
 776                 if( !empty( $undelete ) ) {
 777                         $s .= ' | '.$undelete;
 778                 }
 779                 return $s;
 780         }
 781
 782         function getUndeleteLink() {
 783                 global $wgUser, $wgTitle, $wgContLang, $wgLang, $action;
 784                 if(     $wgUser->isAllowed( 'deletedhistory' ) &&
 785                         (($wgTitle->getArticleId() == 0) || ($action == "history")) &&
 786                         ($n = $wgTitle->isDeleted() ) )
 787                 {
 788                         if ( $wgUser->isAllowed( 'undelete' ) ) {
 789                                 $msg = 'thisisdeleted';
 790                         } else {
 791                                 $msg = 'viewdeleted';
 792                         }
 793                         return wfMsg( $msg,
 794                                 $this->makeKnownLinkObj(
 795                                         SpecialPage::getTitleFor( 'Undelete', $wgTitle->getPrefixedDBkey() ),
 796                                         wfMsgExt( 'restorelink', array( 'parsemag', 'escape' ), $wgLang->formatNum( $n ) ) ) );
 797                 }
 798                 return '';
 799         }
 800
 801         function printableLink() {
 802                 global $wgOut, $wgFeedClasses, $wgRequest;
 803
 804                 $printurl = $wgRequest->escapeAppendQuery( 'printable=yes' );
 805
 806                 $s = "<a href=\"$printurl\">" . wfMsg( 'printableversion' ) . '</a>';
 807                 if( $wgOut->isSyndicated() ) {
 808                         foreach( $wgFeedClasses as $format => $class ) {
 809                                 $feedurl = $wgRequest->escapeAppendQuery( "feed=$format" );
 810                                 $s .= " | <a href=\"$feedurl\">{$format}</a>";
 811                         }
 812                 }
 813                 return $s;
 814         }
 815
 816         function pageTitle() {
 817                 global $wgOut;
 818                 $s = '<h1 class="pagetitle">' . htmlspecialchars( $wgOut->getPageTitle() ) . '</h1>';
 819                 return $s;
 820         }
 821
 822         function pageSubtitle() {
 823                 global $wgOut;
 824
 825                 $sub = $wgOut->getSubtitle();
 826                 if ( '' == $sub ) {
 827                         global $wgExtraSubtitle;
 828                         $sub = wfMsg( 'tagline' ) . $wgExtraSubtitle;
 829                 }
 830                 $subpages = $this->subPageSubtitle();
 831                 $sub .= !empty($subpages)?"</p><p class='subpages'>$subpages":'';
 832                 $s = "<p class='subtitle'>{$sub}</p>\n";
 833                 return $s;
 834         }
 835
 836         function subPageSubtitle() {
 837                 global $wgOut,$wgTitle,$wgNamespacesWithSubpages;
 838                 $subpages = '';
 839                 if($wgOut->isArticle() && !empty($wgNamespacesWithSubpages[$wgTitle->getNamespace()])) {
 840                         $ptext=$wgTitle->getPrefixedText();
 841                         if(preg_match('/\//',$ptext)) {
 842                                 $links = explode('/',$ptext);
 843                                 $c = 0;
 844                                 $growinglink = '';
 845                                 foreach($links as $link) {
 846                                         $c++;
 847                                         if ($c<count($links)) {
 848                                                 $growinglink .= $link;
 849                                                 $getlink = $this->makeLink( $growinglink, htmlspecialchars( $link ) );
 850                                                 if(preg_match('/class="new"/i',$getlink)) { break; } # this is a hack, but it saves time
 851                                                 if ($c>1) {
 852                                                         $subpages .= ' | ';
 853                                                 } else  {
 854                                                         $subpages .= '&lt; ';
 855                                                 }
 856                                                 $subpages .= $getlink;
 857                                                 $growinglink .= '/';
 858                                         }
 859                                 }
 860                         }
 861                 }
 862                 return $subpages;
 863         }
 864
 865         /**
 866          * Returns true if the IP should be shown in the header
 867          */
 868         function showIPinHeader() {
 869                 global $wgShowIPinHeader;
 870                 return $wgShowIPinHeader && session_id() != '';
 871         }
 872
 873         function nameAndLogin() {
 874                 global $wgUser, $wgTitle, $wgLang, $wgContLang;
 875
 876                 $lo = $wgContLang->specialPage( 'Userlogout' );
 877
 878                 $s = '';
 879                 if ( $wgUser->isAnon() ) {
 880                         if( $this->showIPinHeader() ) {
 881                                 $n = wfGetIP();
 882
 883                                 $tl = $this->makeKnownLinkObj( $wgUser->getTalkPage(),
 884                                   $wgLang->getNsText( NS_TALK ) );
 885
 886                                 $s .= $n . ' ('.$tl.')';
 887                         } else {
 888                                 $s .= wfMsg('notloggedin');
 889                         }
 890
 891                         $rt = $wgTitle->getPrefixedURL();
 892                         if ( 0 == strcasecmp( urlencode( $lo ), $rt ) ) {
 893                                 $q = '';
 894                         } else { $q = "returnto={$rt}"; }
 895
 896                         $s .= "\n<br />" . $this->makeKnownLinkObj(
 897                                 SpecialPage::getTitleFor( 'Userlogin' ),
 898                                 wfMsg( 'login' ), $q );
 899                 } else {
 900                         $n = $wgUser->getName();
 901                         $rt = $wgTitle->getPrefixedURL();
 902                         $tl = $this->makeKnownLinkObj( $wgUser->getTalkPage(),
 903                           $wgLang->getNsText( NS_TALK ) );
 904
 905                         $tl = " ({$tl})";
 906
 907                         $s .= $this->makeKnownLinkObj( $wgUser->getUserPage(),
 908                           $n ) . "{$tl}<br />" .
 909                           $this->makeKnownLinkObj( SpecialPage::getTitleFor( 'Userlogout' ), wfMsg( 'logout' ),
 910                           "returnto={$rt}" ) . ' | ' .
 911                           $this->specialLink( 'preferences' );
 912                 }
 913                 $s .= ' | ' . $this->makeKnownLink( wfMsgForContent( 'helppage' ),
 914                   wfMsg( 'help' ) );
 915
 916                 return $s;
 917         }
 918
 919         function getSearchLink() {
 920                 $searchPage = SpecialPage::getTitleFor( 'Search' );
 921                 return $searchPage->getLocalURL();
 922         }
 923
 924         function escapeSearchLink() {
 925                 return htmlspecialchars( $this->getSearchLink() );
 926         }
 927
 928         function searchForm() {
 929                 global $wgRequest;
 930                 $search = $wgRequest->getText( 'search' );
 931
 932                 $s = '<form name="search" class="inline" method="post" action="'
 933                   . $this->escapeSearchLink() . "\">\n"
 934                   . '<input type="text" name="search" size="19" value="'
 935                   . htmlspecialchars(substr($search,0,256)) . "\" />\n"
 936                   . '<input type="submit" name="go" value="' . wfMsg ('searcharticle') . '" />&nbsp;'
 937                   . '<input type="submit" name="fulltext" value="' . wfMsg ('searchbutton') . "\" />\n</form>";
 938
 939                 return $s;
 940         }
 941
 942         function topLinks() {
 943                 global $wgOut;
 944                 $sep = " |\n";
 945
 946                 $s = $this->mainPageLink() . $sep
 947                   . $this->specialLink( 'recentchanges' );
 948
 949                 if ( $wgOut->isArticleRelated() ) {
 950                         $s .=  $sep . $this->editThisPage()
 951                           . $sep . $this->historyLink();
 952                 }
 953                 # Many people don't like this dropdown box
 954                 #$s .= $sep . $this->specialPagesList();
 955
 956                 $s .= $this->variantLinks();
 957
 958                 $s .= $this->extensionTabLinks();
 959
 960                 return $s;
 961         }
 962
 963         /**
 964          * Compatibility for extensions adding functionality through tabs.
 965          * Eventually these old skins should be replaced with SkinTemplate-based
 966          * versions, sigh...
 967          * @return string
 968          */
 969         function extensionTabLinks() {
 970                 $tabs = array();
 971                 $s = '';
 972                 wfRunHooks( 'SkinTemplateTabs', array( $this, &$tabs ) );
 973                 foreach( $tabs as $tab ) {
 974                         $s .= ' | ' . Xml::element( 'a',
 975                                 array( 'href' => $tab['href'] ),
 976                                 $tab['text'] );
 977                 }
 978                 return $s;
 979         }
 980
 981         /**
 982          * Language/charset variant links for classic-style skins
 983          * @return string
 984          */
 985         function variantLinks() {
 986                 $s = '';
 987                 /* show links to different language variants */
 988                 global $wgDisableLangConversion, $wgContLang, $wgTitle;
 989                 $variants = $wgContLang->getVariants();
 990                 if( !$wgDisableLangConversion && sizeof( $variants ) > 1 ) {
 991                         foreach( $variants as $code ) {
 992                                 $varname = $wgContLang->getVariantname( $code );
 993                                 if( $varname == 'disable' )
 994                                         continue;
 995                                 $s .= ' | <a href="' . $wgTitle->escapeLocalUrl( 'variant=' . $code ) . '">' . htmlspecialchars( $varname ) . '</a>';
 996                         }
 997                 }
 998                 return $s;
 999         }
1000
1001         function bottomLinks() {
1002                 global $wgOut, $wgUser, $wgTitle, $wgUseTrackbacks;
1003                 $sep = " |\n";
1004
1005                 $s = '';
1006                 if ( $wgOut->isArticleRelated() ) {
1007                         $s .= '<strong>' . $this->editThisPage() . '</strong>';
1008                         if ( $wgUser->isLoggedIn() ) {
1009                                 $s .= $sep . $this->watchThisPage();
1010                         }
1011                         $s .= $sep . $this->talkLink()
1012                           . $sep . $this->historyLink()
1013                           . $sep . $this->whatLinksHere()
1014                           . $sep . $this->watchPageLinksLink();
1015
1016                         if ($wgUseTrackbacks)
1017                                 $s .= $sep . $this->trackbackLink();
1018
1019                         if ( $wgTitle->getNamespace() == NS_USER
1020                             || $wgTitle->getNamespace() == NS_USER_TALK )
1021
1022                         {
1023                                 $id=User::idFromName($wgTitle->getText());
1024                                 $ip=User::isIP($wgTitle->getText());
1025
1026                                 if($id || $ip) { # both anons and non-anons have contri list
1027                                         $s .= $sep . $this->userContribsLink();
1028                                 }
1029                                 if( $this->showEmailUser( $id ) ) {
1030                                         $s .= $sep . $this->emailUserLink();
1031                                 }
1032                         }
1033                         if ( $wgTitle->getArticleId() ) {
1034                                 $s .= "\n<br />";
1035                                 if($wgUser->isAllowed('delete')) { $s .= $this->deleteThisPage(); }
1036                                 if($wgUser->isAllowed('protect')) { $s .= $sep . $this->protectThisPage(); }
1037                                 if($wgUser->isAllowed('move')) { $s .= $sep . $this->moveThisPage(); }
1038                         }
1039                         $s .= "<br />\n" . $this->otherLanguages();
1040                 }
1041                 return $s;
1042         }
1043
1044         function pageStats() {
1045                 global $wgOut, $wgLang, $wgArticle, $wgRequest, $wgUser;
1046                 global $wgDisableCounters, $wgMaxCredits, $wgShowCreditsIfMax, $wgTitle, $wgPageShowWatchingUsers;
1047
1048                 $oldid = $wgRequest->getVal( 'oldid' );
1049                 $diff = $wgRequest->getVal( 'diff' );
1050                 if ( ! $wgOut->isArticle() ) { return ''; }
1051                 if ( isset( $oldid ) || isset( $diff ) ) { return ''; }
1052                 if ( 0 == $wgArticle->getID() ) { return ''; }
1053
1054                 $s = '';
1055                 if ( !$wgDisableCounters ) {
1056                         $count = $wgLang->formatNum( $wgArticle->getCount() );
1057                         if ( $count ) {
1058                                 $s = wfMsgExt( 'viewcount', array( 'parseinline' ), $count );
1059                         }
1060                 }
1061
1062                 if (isset($wgMaxCredits) && $wgMaxCredits != 0) {
1063                     require_once('Credits.php');
1064                     $s .= ' ' . getCredits($wgArticle, $wgMaxCredits, $wgShowCreditsIfMax);
1065                 } else {
1066                     $s .= $this->lastModified();
1067                 }
1068
1069                 if ($wgPageShowWatchingUsers && $wgUser->getOption( 'shownumberswatching' )) {
1070                         $dbr = wfGetDB( DB_SLAVE );
1071                         $watchlist = $dbr->tableName( 'watchlist' );
1072                         $sql = "SELECT COUNT(*) AS n FROM $watchlist
1073                                 WHERE wl_title='" . $dbr->strencode($wgTitle->getDBKey()) .
1074                                 "' AND  wl_namespace=" . $wgTitle->getNamespace() ;
1075                         $res = $dbr->query( $sql, 'Skin::pageStats');
1076                         $x = $dbr->fetchObject( $res );
1077
1078                         $s .= ' ' . wfMsgExt( 'number_of_watching_users_pageview',
1079                                 array( 'parseinline' ), $wgLang->formatNum($x->n)
1080                         );
1081                 }
1082
1083                 return $s . ' ' .  $this->getCopyright();
1084         }
1085
1086         function getCopyright( $type = 'detect' ) {
1087                 global $wgRightsPage, $wgRightsUrl, $wgRightsText, $wgRequest;
1088
1089                 if ( $type == 'detect' ) {
1090                         $oldid = $wgRequest->getVal( 'oldid' );
1091                         $diff = $wgRequest->getVal( 'diff' );
1092
1093                         if ( !is_null( $oldid ) && is_null( $diff ) && wfMsgForContent( 'history_copyright' ) !== '-' ) {
1094                                 $type = 'history';
1095                         } else {
1096                                 $type = 'normal';
1097                         }
1098                 }
1099
1100                 if ( $type == 'history' ) {
1101                         $msg = 'history_copyright';
1102                 } else {
1103                         $msg = 'copyright';
1104                 }
1105
1106                 $out = '';
1107                 if( $wgRightsPage ) {
1108                         $link = $this->makeKnownLink( $wgRightsPage, $wgRightsText );
1109                 } elseif( $wgRightsUrl ) {
1110                         $link = $this->makeExternalLink( $wgRightsUrl, $wgRightsText );
1111                 } else {
1112                         # Give up now
1113                         return $out;
1114                 }
1115                 $out .= wfMsgForContent( $msg, $link );
1116                 return $out;
1117         }
1118
1119         function getCopyrightIcon() {
1120                 global $wgRightsUrl, $wgRightsText, $wgRightsIcon, $wgCopyrightIcon;
1121                 $out = '';
1122                 if ( isset( $wgCopyrightIcon ) && $wgCopyrightIcon ) {
1123                         $out = $wgCopyrightIcon;
1124                 } else if ( $wgRightsIcon ) {
1125                         $icon = htmlspecialchars( $wgRightsIcon );
1126                         if ( $wgRightsUrl ) {
1127                                 $url = htmlspecialchars( $wgRightsUrl );
1128                                 $out .= '<a href="'.$url.'">';
1129                         }
1130                         $text = htmlspecialchars( $wgRightsText );
1131                         $out .= "<img src=\"$icon\" alt='$text' />";
1132                         if ( $wgRightsUrl ) {
1133                                 $out .= '</a>';
1134                         }
1135                 }
1136                 return $out;
1137         }
1138
1139         function getPoweredBy() {
1140                 global $wgStylePath;
1141                 $url = htmlspecialchars( "$wgStylePath/common/images/poweredby_mediawiki_88x31.png" );
1142                 $img = '<a href="http://www.mediawiki.org/"><img src="'.$url.'" alt="Powered by MediaWiki" /></a>';
1143                 return $img;
1144         }
1145
1146         function lastModified() {
1147                 global $wgLang, $wgArticle, $wgLoadBalancer;
1148
1149                 $timestamp = $wgArticle->getTimestamp();
1150                 if ( $timestamp ) {
1151                         $d = $wgLang->date( $timestamp, true );
1152                         $t = $wgLang->time( $timestamp, true );
1153                         $s = ' ' . wfMsg( 'lastmodifiedat', $d, $t );
1154                 } else {
1155                         $s = '';
1156                 }
1157                 if ( $wgLoadBalancer->getLaggedSlaveMode() ) {
1158                         $s .= ' <strong>' . wfMsg( 'laggedslavemode' ) . '</strong>';
1159                 }
1160                 return $s;
1161         }
1162
1163         function logoText( $align = '' ) {
1164                 if ( '' != $align ) { $a = " align='{$align}'"; }
1165                 else { $a = ''; }
1166
1167                 $mp = wfMsg( 'mainpage' );
1168                 $mptitle = Title::newMainPage();
1169                 $url = ( is_object($mptitle) ? $mptitle->escapeLocalURL() : '' );
1170
1171                 $logourl = $this->getLogo();
1172                 $s = "<a href='{$url}'><img{$a} src='{$logourl}' alt='[{$mp}]' /></a>";
1173                 return $s;
1174         }
1175
1176         /**
1177          * show a drop-down box of special pages
1178          */
1179         function specialPagesList() {
1180                 global $wgUser, $wgContLang, $wgServer, $wgRedirectScript;
1181                 $pages = array_merge( SpecialPage::getRegularPages(), SpecialPage::getRestrictedPages() );
1182                 foreach ( $pages as $name => $page ) {
1183                         $pages[$name] = $page->getDescription();
1184                 }
1185
1186                 $go = wfMsg( 'go' );
1187                 $sp = wfMsg( 'specialpages' );
1188                 $spp = $wgContLang->specialPage( 'Specialpages' );
1189
1190                 $s = '<form id="specialpages" method="get" class="inline" ' .
1191                   'action="' . htmlspecialchars( "{$wgServer}{$wgRedirectScript}" ) . "\">\n";
1192                 $s .= "<select name=\"wpDropdown\">\n";
1193                 $s .= "<option value=\"{$spp}\">{$sp}</option>\n";
1194
1195
1196                 foreach ( $pages as $name => $desc ) {
1197                         $p = $wgContLang->specialPage( $name );
1198                         $s .= "<option value=\"{$p}\">{$desc}</option>\n";
1199                 }
1200                 $s .= "</select>\n";
1201                 $s .= "<input type='submit' value=\"{$go}\" name='redirect' />\n";
1202                 $s .= "</form>\n";
1203                 return $s;
1204         }
1205
1206         function mainPageLink() {
1207                 $s = $this->makeKnownLinkObj( Title::newMainPage(), wfMsg( 'mainpage' ) );
1208                 return $s;
1209         }
1210
1211         function copyrightLink() {
1212                 $s = $this->makeKnownLink( wfMsgForContent( 'copyrightpage' ),
1213                   wfMsg( 'copyrightpagename' ) );
1214                 return $s;
1215         }
1216
1217         private function footerLink ( $desc, $page ) {
1218                 // if the link description has been set to "-" in the default language,
1219                 if ( wfMsgForContent( $desc )  == '-') {
1220                         // then it is disabled, for all languages.
1221                         return '';
1222                 } else {
1223                         // Otherwise, we display the link for the user, described in their
1224                         // language (which may or may not be the same as the default language),
1225                         // but we make the link target be the one site-wide page.
1226                         return $this->makeKnownLink( wfMsgForContent( $page ),
1227                                 wfMsgExt( $desc, array( 'parsemag', 'escapenoentities' ) ) );
1228                 }
1229         }
1230
1231         function privacyLink() {
1232                 return $this->footerLink( 'privacy', 'privacypage' );
1233         }
1234
1235         function aboutLink() {
1236                 return $this->footerLink( 'aboutsite', 'aboutpage' );
1237         }
1238
1239         function disclaimerLink() {
1240                 return $this->footerLink( 'disclaimers', 'disclaimerpage' );
1241         }
1242
1243         function editThisPage() {
1244                 global $wgOut, $wgTitle;
1245
1246                 if ( ! $wgOut->isArticleRelated() ) {
1247                         $s = wfMsg( 'protectedpage' );
1248                 } else {
1249                         if ( $wgTitle->userCan( 'edit' ) ) {
1250                                 $t = wfMsg( 'editthispage' );
1251                         } else {
1252                                 $t = wfMsg( 'viewsource' );
1253                         }
1254
1255                         $s = $this->makeKnownLinkObj( $wgTitle, $t, $this->editUrlOptions() );
1256                 }
1257                 return $s;
1258         }
1259
1260         /**
1261          * Return URL options for the 'edit page' link.
1262          * This may include an 'oldid' specifier, if the current page view is such.
1263          *
1264          * @return string
1265          * @private
1266          */
1267         function editUrlOptions() {
1268                 global $wgArticle;
1269
1270                 if( $this->mRevisionId && ! $wgArticle->isCurrent() ) {
1271                         return "action=edit&oldid=" . intval( $this->mRevisionId );
1272                 } else {
1273                         return "action=edit";
1274                 }
1275         }
1276
1277         function deleteThisPage() {
1278                 global $wgUser, $wgTitle, $wgRequest;
1279
1280                 $diff = $wgRequest->getVal( 'diff' );
1281                 if ( $wgTitle->getArticleId() && ( ! $diff ) && $wgUser->isAllowed('delete') ) {
1282                         $t = wfMsg( 'deletethispage' );
1283
1284                         $s = $this->makeKnownLinkObj( $wgTitle, $t, 'action=delete' );
1285                 } else {
1286                         $s = '';
1287                 }
1288                 return $s;
1289         }
1290
1291         function protectThisPage() {
1292                 global $wgUser, $wgTitle, $wgRequest;
1293
1294                 $diff = $wgRequest->getVal( 'diff' );
1295                 if ( $wgTitle->getArticleId() && ( ! $diff ) && $wgUser->isAllowed('protect') ) {
1296                         if ( $wgTitle->isProtected() ) {
1297                                 $t = wfMsg( 'unprotectthispage' );
1298                                 $q = 'action=unprotect';
1299                         } else {
1300                                 $t = wfMsg( 'protectthispage' );
1301                                 $q = 'action=protect';
1302                         }
1303                         $s = $this->makeKnownLinkObj( $wgTitle, $t, $q );
1304                 } else {
1305                         $s = '';
1306                 }
1307                 return $s;
1308         }
1309
1310         function watchThisPage() {
1311                 global $wgOut, $wgTitle;
1312                 ++$this->mWatchLinkNum;
1313
1314                 if ( $wgOut->isArticleRelated() ) {
1315                         if ( $wgTitle->userIsWatching() ) {
1316                                 $t = wfMsg( 'unwatchthispage' );
1317                                 $q = 'action=unwatch';
1318                                 $id = "mw-unwatch-link".$this->mWatchLinkNum;
1319                         } else {
1320                                 $t = wfMsg( 'watchthispage' );
1321                                 $q = 'action=watch';
1322                                 $id = 'mw-watch-link'.$this->mWatchLinkNum;
1323                         }
1324                         $s = $this->makeKnownLinkObj( $wgTitle, $t, $q, '', '', " id=\"$id\"" );
1325                 } else {
1326                         $s = wfMsg( 'notanarticle' );
1327                 }
1328                 return $s;
1329         }
1330
1331         function moveThisPage() {
1332                 global $wgTitle;
1333
1334                 if ( $wgTitle->userCan( 'move' ) ) {
1335                         return $this->makeKnownLinkObj( SpecialPage::getTitleFor( 'Movepage' ),
1336                           wfMsg( 'movethispage' ), 'target=' . $wgTitle->getPrefixedURL() );
1337                 } else {
1338                         // no message if page is protected - would be redundant
1339                         return '';
1340                 }
1341         }
1342
1343         function historyLink() {
1344                 global $wgTitle;
1345
1346                 return $this->makeKnownLinkObj( $wgTitle,
1347                   wfMsg( 'history' ), 'action=history' );
1348         }
1349
1350         function whatLinksHere() {
1351                 global $wgTitle;
1352
1353                 return $this->makeKnownLinkObj(
1354                         SpecialPage::getTitleFor( 'Whatlinkshere', $wgTitle->getPrefixedDBkey() ),
1355                         wfMsg( 'whatlinkshere' ) );
1356         }
1357
1358         function userContribsLink() {
1359                 global $wgTitle;
1360
1361                 return $this->makeKnownLinkObj(
1362                         SpecialPage::getTitleFor( 'Contributions', $wgTitle->getDBkey() ),
1363                         wfMsg( 'contributions' ) );
1364         }
1365
1366         function showEmailUser( $id ) {
1367                 global $wgEnableEmail, $wgEnableUserEmail, $wgUser;
1368                 return $wgEnableEmail &&
1369                        $wgEnableUserEmail &&
1370                        $wgUser->isLoggedIn() && # show only to signed in users
1371                        0 != $id; # we can only email to non-anons ..
1372 #                      '' != $id->getEmail() && # who must have an email address stored ..
1373 #                      0 != $id->getEmailauthenticationtimestamp() && # .. which is authenticated
1374 #                      1 != $wgUser->getOption('disablemail'); # and not disabled
1375         }
1376
1377         function emailUserLink() {
1378                 global $wgTitle;
1379
1380                 return $this->makeKnownLinkObj(
1381                         SpecialPage::getTitleFor( 'Emailuser', $wgTitle->getDBkey() ),
1382                         wfMsg( 'emailuser' ) );
1383         }
1384
1385         function watchPageLinksLink() {
1386                 global $wgOut, $wgTitle;
1387
1388                 if ( ! $wgOut->isArticleRelated() ) {
1389                         return '(' . wfMsg( 'notanarticle' ) . ')';
1390                 } else {
1391                         return $this->makeKnownLinkObj(
1392                                 SpecialPage::getTitleFor( 'Recentchangeslinked', $wgTitle->getPrefixedDBkey() ),
1393                                 wfMsg( 'recentchangeslinked' ) );
1394                 }
1395         }
1396
1397         function trackbackLink() {
1398                 global $wgTitle;
1399
1400                 return "<a href=\"" . $wgTitle->trackbackURL() . "\">"
1401                         . wfMsg('trackbacklink') . "</a>";
1402         }
1403
1404         function otherLanguages() {
1405                 global $wgOut, $wgContLang, $wgHideInterlanguageLinks;
1406
1407                 if ( $wgHideInterlanguageLinks ) {
1408                         return '';
1409                 }
1410
1411                 $a = $wgOut->getLanguageLinks();
1412                 if ( 0 == count( $a ) ) {
1413                         return '';
1414                 }
1415
1416                 $s = wfMsg( 'otherlanguages' ) . ': ';
1417                 $first = true;
1418                 if($wgContLang->isRTL()) $s .= '<span dir="LTR">';
1419                 foreach( $a as $l ) {
1420                         if ( ! $first ) { $s .= ' | '; }
1421                         $first = false;
1422
1423                         $nt = Title::newFromText( $l );
1424                         $url = $nt->escapeFullURL();
1425                         $text = $wgContLang->getLanguageName( $nt->getInterwiki() );
1426
1427                         if ( '' == $text ) { $text = $l; }
1428                         $style = $this->getExternalLinkAttributes( $l, $text );
1429                         $s .= "<a href=\"{$url}\"{$style}>{$text}</a>";
1430                 }
1431                 if($wgContLang->isRTL()) $s .= '</span>';
1432                 return $s;
1433         }
1434
1435         function bugReportsLink() {
1436                 $s = $this->makeKnownLink( wfMsgForContent( 'bugreportspage' ),
1437                   wfMsg( 'bugreports' ) );
1438                 return $s;
1439         }
1440
1441         function talkLink() {
1442                 global $wgTitle;
1443
1444                 if ( NS_SPECIAL == $wgTitle->getNamespace() ) {
1445                         # No discussion links for special pages
1446                         return '';
1447                 }
1448
1449                 if( $wgTitle->isTalkPage() ) {
1450                         $link = $wgTitle->getSubjectPage();
1451                         switch( $link->getNamespace() ) {
1452                                 case NS_MAIN:
1453                                         $text = wfMsg( 'articlepage' );
1454                                         break;
1455                                 case NS_USER:
1456                                         $text = wfMsg( 'userpage' );
1457                                         break;
1458                                 case NS_PROJECT:
1459                                         $text = wfMsg( 'projectpage' );
1460                                         break;
1461                                 case NS_IMAGE:
1462                                         $text = wfMsg( 'imagepage' );
1463                                         break;
1464                                 case NS_MEDIAWIKI:
1465                                         $text = wfMsg( 'mediawikipage' );
1466                                         break;
1467                                 case NS_TEMPLATE:
1468                                         $text = wfMsg( 'templatepage' );
1469                                         break;
1470                                 case NS_HELP:
1471                                         $text = wfMsg( 'viewhelppage' );
1472                                         break;
1473                                 case NS_CATEGORY:
1474                                         $text = wfMsg( 'categorypage' );
1475                                         break;
1476                                 default:
1477                                         $text = wfMsg( 'articlepage' );
1478                         }
1479                 } else {
1480                         $link = $wgTitle->getTalkPage();
1481                         $text = wfMsg( 'talkpage' );
1482                 }
1483
1484                 $s = $this->makeLinkObj( $link, $text );
1485
1486                 return $s;
1487         }
1488
1489         function commentLink() {
1490                 global $wgTitle, $wgOut;
1491
1492                 if ( $wgTitle->getNamespace() == NS_SPECIAL ) {
1493                         return '';
1494                 }
1495
1496                 # __NEWSECTIONLINK___ changes behaviour here
1497                 # If it's present, the link points to this page, otherwise
1498                 # it points to the talk page
1499                 if( $wgTitle->isTalkPage() ) {
1500                         $title = $wgTitle;
1501                 } elseif( $wgOut->showNewSectionLink() ) {
1502                         $title = $wgTitle;
1503                 } else {
1504                         $title = $wgTitle->getTalkPage();
1505                 }
1506
1507                 return $this->makeKnownLinkObj( $title, wfMsg( 'postcomment' ), 'action=edit&section=new' );
1508         }
1509
1510         /* these are used extensively in SkinTemplate, but also some other places */
1511         static function makeMainPageUrl( $urlaction = '' ) {
1512                 $title = Title::newMainPage();
1513                 self::checkTitle( $title, '' );
1514                 return $title->getLocalURL( $urlaction );
1515         }
1516
1517         static function makeSpecialUrl( $name, $urlaction = '' ) {
1518                 $title = SpecialPage::getTitleFor( $name );
1519                 return $title->getLocalURL( $urlaction );
1520         }
1521
1522         static function makeSpecialUrlSubpage( $name, $subpage, $urlaction = '' ) {
1523                 $title = SpecialPage::getSafeTitleFor( $name, $subpage );
1524                 return $title->getLocalURL( $urlaction );
1525         }
1526
1527         static function makeI18nUrl( $name, $urlaction = '' ) {
1528                 $title = Title::newFromText( wfMsgForContent( $name ) );
1529                 self::checkTitle( $title, $name );
1530                 return $title->getLocalURL( $urlaction );
1531         }
1532
1533         static function makeUrl( $name, $urlaction = '' ) {
1534                 $title = Title::newFromText( $name );
1535                 self::checkTitle( $title, $name );
1536                 return $title->getLocalURL( $urlaction );
1537         }
1538
1539         # If url string starts with http, consider as external URL, else
1540         # internal
1541         static function makeInternalOrExternalUrl( $name ) {
1542                 if ( preg_match( '/^(?:' . wfUrlProtocols() . ')/', $name ) ) {
1543                         return $name;
1544                 } else {
1545                         return self::makeUrl( $name );
1546                 }
1547         }
1548
1549         # this can be passed the NS number as defined in Language.php
1550         static function makeNSUrl( $name, $urlaction = '', $namespace = NS_MAIN ) {
1551                 $title = Title::makeTitleSafe( $namespace, $name );
1552                 self::checkTitle( $title, $name );
1553                 return $title->getLocalURL( $urlaction );
1554         }
1555
1556         /* these return an array with the 'href' and boolean 'exists' */
1557         static function makeUrlDetails( $name, $urlaction = '' ) {
1558                 $title = Title::newFromText( $name );
1559                 self::checkTitle( $title, $name );
1560                 return array(
1561                         'href' => $title->getLocalURL( $urlaction ),
1562                         'exists' => $title->getArticleID() != 0 ? true : false
1563                 );
1564         }
1565
1566         /**
1567          * Make URL details where the article exists (or at least it's convenient to think so)
1568          */
1569         static function makeKnownUrlDetails( $name, $urlaction = '' ) {
1570                 $title = Title::newFromText( $name );
1571                 self::checkTitle( $title, $name );
1572                 return array(
1573                         'href' => $title->getLocalURL( $urlaction ),
1574                         'exists' => true
1575                 );
1576         }
1577
1578         # make sure we have some title to operate on
1579         static function checkTitle( &$title, $name ) {
1580                 if( !is_object( $title ) ) {
1581                         $title = Title::newFromText( $name );
1582                         if( !is_object( $title ) ) {
1583                                 $title = Title::newFromText( '--error: link target missing--' );
1584                         }
1585                 }
1586         }
1587
1588         /**
1589          * Build an array that represents the sidebar(s), the navigation bar among them
1590          *
1591          * @return array
1592          * @private
1593          */
1594         function buildSidebar() {
1595                 global $parserMemc, $wgEnableSidebarCache;
1596                 global $wgLang, $wgContLang;
1597
1598                 $fname = 'SkinTemplate::buildSidebar';
1599
1600                 wfProfileIn( $fname );
1601
1602                 $key = wfMemcKey( 'sidebar' );
1603                 $cacheSidebar = $wgEnableSidebarCache &&
1604                         ($wgLang->getCode() == $wgContLang->getCode());
1605
1606                 if ($cacheSidebar) {
1607                         $cachedsidebar = $parserMemc->get( $key );
1608                         if ($cachedsidebar!="") {
1609                                 wfProfileOut($fname);
1610                                 return $cachedsidebar;
1611                         }
1612                 }
1613
1614                 $bar = array();
1615                 $lines = explode( "\n", wfMsgForContent( 'sidebar' ) );
1616                 foreach ($lines as $line) {
1617                         if (strpos($line, '*') !== 0)
1618                                 continue;
1619                         if (strpos($line, '**') !== 0) {
1620                                 $line = trim($line, '* ');
1621                                 $heading = $line;
1622                         } else {
1623                                 if (strpos($line, '|') !== false) { // sanity check
1624                                         $line = explode( '|' , trim($line, '* '), 2 );
1625                                         $link = wfMsgForContent( $line[0] );
1626                                         if ($link == '-')
1627                                                 continue;
1628                                         if (wfEmptyMsg($line[1], $text = wfMsg($line[1])))
1629                                                 $text = $line[1];
1630                                         if (wfEmptyMsg($line[0], $link))
1631                                                 $link = $line[0];
1632
1633                                         if ( preg_match( '/^(?:' . wfUrlProtocols() . ')/', $link ) ) {
1634                                                 $href = $link;
1635                                         } else {
1636                                                 $title = Title::newFromText( $link );
1637                                                 if ( $title ) {
1638                                                         $title = $title->fixSpecialName();
1639                                                         $href = $title->getLocalURL();
1640                                                 } else {
1641                                                         $href = 'INVALID-TITLE';
1642                                                 }
1643                                         }
1644
1645                                         $bar[$heading][] = array(
1646                                                 'text' => $text,
1647                                                 'href' => $href,
1648                                                 'id' => 'n-' . strtr($line[1], ' ', '-'),
1649                                                 'active' => false
1650                                         );
1651                                 } else { continue; }
1652                         }
1653                 }
1654                 if ($cacheSidebar)
1655                         $parserMemc->set( $key, $bar, 86400 );
1656                 wfProfileOut( $fname );
1657                 return $bar;
1658         }
1659
1660 }