includes/Skin.php

   1 <?php
   2 /**
   3  * @defgroup Skins Skins
   4  */
   5
   6 if ( ! defined( 'MEDIAWIKI' ) )
   7         die( 1 );
   8
   9 /**
  10  * The main skin class that provide methods and properties for all other skins.
  11  * This base class is also the "Standard" skin.
  12  *
  13  * See docs/skin.txt for more information.
  14  *
  15  * @ingroup Skins
  16  */
  17 class Skin extends Linker {
  18         /**#@+
  19          * @private
  20          */
  21         var $mWatchLinkNum = 0; // Appended to end of watch link id's
  22         // How many search boxes have we made?  Avoid duplicate id's.
  23         protected $searchboxes = '';
  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          * Fetch the list of usable skins in regards to $wgSkipSkins.
  66          * Useful for Special:Preferences and other places where you
  67          * only want to show skins users _can_ use.
  68          * @return array of strings
  69          */
  70         public static function getUsableSkins() {
  71                 global $wgSkipSkins;
  72                 $usableSkins = self::getSkinNames();
  73                 foreach ( $wgSkipSkins as $skip ) {
  74                         unset( $usableSkins[$skip] );
  75                 }
  76                 return $usableSkins;
  77         }
  78
  79         /**
  80          * Normalize a skin preference value to a form that can be loaded.
  81          * If a skin can't be found, it will fall back to the configured
  82          * default (or the old 'Classic' skin if that's broken).
  83          * @param string $key
  84          * @return string
  85          * @static
  86          */
  87         static function normalizeKey( $key ) {
  88                 global $wgDefaultSkin;
  89                 $skinNames = Skin::getSkinNames();
  90
  91                 if( $key == '' ) {
  92                         // Don't return the default immediately;
  93                         // in a misconfiguration we need to fall back.
  94                         $key = $wgDefaultSkin;
  95                 }
  96
  97                 if( isset( $skinNames[$key] ) ) {
  98                         return $key;
  99                 }
 100
 101                 // Older versions of the software used a numeric setting
 102                 // in the user preferences.
 103                 $fallback = array(
 104                         0 => $wgDefaultSkin,
 105                         1 => 'nostalgia',
 106                         2 => 'cologneblue' );
 107
 108                 if( isset( $fallback[$key] ) ){
 109                         $key = $fallback[$key];
 110                 }
 111
 112                 if( isset( $skinNames[$key] ) ) {
 113                         return $key;
 114                 } else {
 115                         return 'monobook';
 116                 }
 117         }
 118
 119         /**
 120          * Factory method for loading a skin of a given type
 121          * @param string $key 'monobook', 'standard', etc
 122          * @return Skin
 123          * @static
 124          */
 125         static function &newFromKey( $key ) {
 126                 global $wgStyleDirectory;
 127
 128                 $key = Skin::normalizeKey( $key );
 129
 130                 $skinNames = Skin::getSkinNames();
 131                 $skinName = $skinNames[$key];
 132                 $className = 'Skin'.ucfirst($key);
 133
 134                 # Grab the skin class and initialise it.
 135                 if ( !class_exists( $className ) ) {
 136                         // Preload base classes to work around APC/PHP5 bug
 137                         $deps = "{$wgStyleDirectory}/{$skinName}.deps.php";
 138                         if( file_exists( $deps ) ) include_once( $deps );
 139                         require_once( "{$wgStyleDirectory}/{$skinName}.php" );
 140
 141                         # Check if we got if not failback to default skin
 142                         if( !class_exists( $className ) ) {
 143                                 # DO NOT die if the class isn't found. This breaks maintenance
 144                                 # scripts and can cause a user account to be unrecoverable
 145                                 # except by SQL manipulation if a previously valid skin name
 146                                 # is no longer valid.
 147                                 wfDebug( "Skin class does not exist: $className\n" );
 148                                 $className = 'SkinMonobook';
 149                                 require_once( "{$wgStyleDirectory}/MonoBook.php" );
 150                         }
 151                 }
 152                 $skin = new $className;
 153                 return $skin;
 154         }
 155
 156         /** @return string path to the skin stylesheet */
 157         function getStylesheet() {
 158                 return 'common/wikistandard.css';
 159         }
 160
 161         /** @return string skin name */
 162         public function getSkinName() {
 163                 return $this->skinname;
 164         }
 165
 166         function qbSetting() {
 167                 global $wgOut, $wgUser;
 168
 169                 if ( $wgOut->isQuickbarSuppressed() ) { return 0; }
 170                 $q = $wgUser->getOption( 'quickbar', 0 );
 171                 return $q;
 172         }
 173
 174         function initPage( OutputPage $out ) {
 175                 global $wgFavicon, $wgAppleTouchIcon;
 176
 177                 wfProfileIn( __METHOD__ );
 178
 179                 # Generally the order of the favicon and apple-touch-icon links
 180                 # should not matter, but Konqueror (3.5.9 at least) incorrectly
 181                 # uses whichever one appears later in the HTML source.  Make sure
 182                 # apple-touch-icon is specified first to avoid this.
 183                 if( false !== $wgAppleTouchIcon ) {
 184                         $out->addLink( array( 'rel' => 'apple-touch-icon', 'href' => $wgAppleTouchIcon ) );
 185                 }
 186
 187                 if( false !== $wgFavicon ) {
 188                         $out->addLink( array( 'rel' => 'shortcut icon', 'href' => $wgFavicon ) );
 189                 }
 190
 191                 # OpenSearch description link
 192                 $out->addLink( array(
 193                         'rel' => 'search',
 194                         'type' => 'application/opensearchdescription+xml',
 195                         'href' => wfScript( 'opensearch_desc' ),
 196                         'title' => wfMsgForContent( 'opensearch-desc' ),
 197                 ));
 198
 199                 $this->addMetadataLinks( $out );
 200
 201                 $this->mRevisionId = $out->mRevisionId;
 202
 203                 $this->preloadExistence();
 204
 205                 wfProfileOut( __METHOD__ );
 206         }
 207
 208         /**
 209          * Preload the existence of three commonly-requested pages in a single query
 210          */
 211         function preloadExistence() {
 212                 global $wgUser;
 213
 214                 // User/talk link
 215                 $titles = array( $wgUser->getUserPage(), $wgUser->getTalkPage() );
 216
 217                 // Other tab link
 218                 if ( $this->mTitle->getNamespace() == NS_SPECIAL ) {
 219                         // nothing
 220                 } elseif ( $this->mTitle->isTalkPage() ) {
 221                         $titles[] = $this->mTitle->getSubjectPage();
 222                 } else {
 223                         $titles[] = $this->mTitle->getTalkPage();
 224                 }
 225
 226                 $lb = new LinkBatch( $titles );
 227                 $lb->execute();
 228         }
 229
 230         function addMetadataLinks( OutputPage $out ) {
 231                 global $wgEnableDublinCoreRdf, $wgEnableCreativeCommonsRdf;
 232                 global $wgRightsPage, $wgRightsUrl;
 233
 234                 if( $out->isArticleRelated() ) {
 235                         # note: buggy CC software only reads first "meta" link
 236                         if( $wgEnableCreativeCommonsRdf ) {
 237                                 $out->addMetadataLink( array(
 238                                         'title' => 'Creative Commons',
 239                                         'type' => 'application/rdf+xml',
 240                                         'href' => $this->mTitle->getLocalURL( 'action=creativecommons' ) )
 241                                 );
 242                         }
 243                         if( $wgEnableDublinCoreRdf ) {
 244                                 $out->addMetadataLink( array(
 245                                         'title' => 'Dublin Core',
 246                                         'type' => 'application/rdf+xml',
 247                                         'href' => $this->mTitle->getLocalURL( 'action=dublincore' ) )
 248                                 );
 249                         }
 250                 }
 251                 $copyright = '';
 252                 if( $wgRightsPage ) {
 253                         $copy = Title::newFromText( $wgRightsPage );
 254                         if( $copy ) {
 255                                 $copyright = $copy->getLocalURL();
 256                         }
 257                 }
 258                 if( !$copyright && $wgRightsUrl ) {
 259                         $copyright = $wgRightsUrl;
 260                 }
 261                 if( $copyright ) {
 262                         $out->addLink( array(
 263                                 'rel' => 'copyright',
 264                                 'href' => $copyright )
 265                         );
 266                 }
 267         }
 268
 269         /**
 270          * Set some local variables
 271          */
 272         protected function setMembers(){
 273                 global $wgUser;
 274                 $this->mUser = $wgUser;
 275                 $this->userpage = $wgUser->getUserPage()->getPrefixedText();
 276                 $this->usercss = false;
 277         }
 278
 279         /**
 280          * Set the title
 281          * @param Title $t The title to use
 282          */
 283         public function setTitle( $t ) {
 284                 $this->mTitle = $t;
 285         }
 286
 287         function outputPage( OutputPage $out ) {
 288                 global $wgDebugComments;
 289                 wfProfileIn( __METHOD__ );
 290
 291                 $this->setMembers();
 292                 $this->initPage( $out );
 293
 294                 // See self::afterContentHook() for documentation
 295                 $afterContent = $this->afterContentHook();
 296
 297                 $out->out( $out->headElement( $this ) );
 298
 299                 $out->out( "\n<body" );
 300                 $ops = $this->getBodyOptions();
 301                 foreach ( $ops as $name => $val ) {
 302                         $out->out( " $name='$val'" );
 303                 }
 304                 $out->out( ">\n" );
 305                 if ( $wgDebugComments ) {
 306                         $out->out( "<!-- Wiki debugging output:\n" .
 307                           $out->mDebugtext . "-->\n" );
 308                 }
 309
 310                 $out->out( $this->beforeContent() );
 311
 312                 $out->out( $out->mBodytext . "\n" );
 313
 314                 $out->out( $this->afterContent() );
 315
 316                 $out->out( $afterContent );
 317
 318                 $out->out( $this->bottomScripts() );
 319
 320                 $out->out( wfReportTime() );
 321
 322                 $out->out( "\n</body></html>" );
 323                 wfProfileOut( __METHOD__ );
 324         }
 325
 326         static function makeVariablesScript( $data ) {
 327                 global $wgJsMimeType;
 328
 329                 $r = array( "<script type=\"$wgJsMimeType\">/*<![CDATA[*/" );
 330                 foreach ( $data as $name => $value ) {
 331                         $encValue = Xml::encodeJsVar( $value );
 332                         $r[] = "var $name = $encValue;";
 333                 }
 334                 $r[] = "/*]]>*/</script>\n";
 335
 336                 return implode( "\n\t\t", $r );
 337         }
 338
 339         /**
 340          * Make a <script> tag containing global variables
 341          * @param array $data Associative array containing one element:
 342          *     skinname => the skin name
 343          * The odd calling convention is for backwards compatibility
 344          * @TODO @FIXME Make this not depend on $wgTitle!
 345          */
 346         static function makeGlobalVariablesScript( $data ) {
 347                 global $wgScript, $wgTitle, $wgStylePath, $wgUser;
 348                 global $wgArticlePath, $wgScriptPath, $wgServer, $wgContLang, $wgLang;
 349                 global $wgCanonicalNamespaceNames, $wgOut, $wgArticle;
 350                 global $wgBreakFrames, $wgRequest, $wgVariantArticlePath, $wgActionPaths;
 351                 global $wgUseAjax, $wgAjaxWatch;
 352                 global $wgVersion, $wgEnableAPI, $wgEnableWriteAPI;
 353                 global $wgRestrictionTypes, $wgLivePreview;
 354                 global $wgMWSuggestTemplate, $wgDBname, $wgEnableMWSuggest;
 355
 356                 $ns = $wgTitle->getNamespace();
 357                 $nsname = isset( $wgCanonicalNamespaceNames[ $ns ] ) ? $wgCanonicalNamespaceNames[ $ns ] : $wgTitle->getNsText();
 358                 $separatorTransTable = $wgContLang->separatorTransformTable();
 359                 $separatorTransTable = $separatorTransTable ? $separatorTransTable : array();
 360                 $compactSeparatorTransTable = array(
 361                         implode( "\t", array_keys( $separatorTransTable ) ),
 362                         implode( "\t", $separatorTransTable ),
 363                 );
 364                 $digitTransTable = $wgContLang->digitTransformTable();
 365                 $digitTransTable = $digitTransTable ? $digitTransTable : array();
 366                 $compactDigitTransTable = array(
 367                         implode( "\t", array_keys( $digitTransTable ) ),
 368                         implode( "\t", $digitTransTable ),
 369                 );
 370
 371                 $vars = array(
 372                         'skin' => $data['skinname'],
 373                         'stylepath' => $wgStylePath,
 374                         'wgArticlePath' => $wgArticlePath,
 375                         'wgScriptPath' => $wgScriptPath,
 376                         'wgScript' => $wgScript,
 377                         'wgVariantArticlePath' => $wgVariantArticlePath,
 378                         'wgActionPaths' => (object)$wgActionPaths,
 379                         'wgServer' => $wgServer,
 380                         'wgCanonicalNamespace' => $nsname,
 381                         'wgCanonicalSpecialPageName' => SpecialPage::resolveAlias( $wgTitle->getDBkey() ),
 382                         'wgNamespaceNumber' => $wgTitle->getNamespace(),
 383                         'wgPageName' => $wgTitle->getPrefixedDBKey(),
 384                         'wgTitle' => $wgTitle->getText(),
 385                         'wgAction' => $wgRequest->getText( 'action', 'view' ),
 386                         'wgArticleId' => $wgTitle->getArticleId(),
 387                         'wgIsArticle' => $wgOut->isArticle(),
 388                         'wgUserName' => $wgUser->isAnon() ? NULL : $wgUser->getName(),
 389                         'wgUserGroups' => $wgUser->isAnon() ? NULL : $wgUser->getEffectiveGroups(),
 390                         'wgUserLanguage' => $wgLang->getCode(),
 391                         'wgContentLanguage' => $wgContLang->getCode(),
 392                         'wgBreakFrames' => $wgBreakFrames,
 393                         'wgCurRevisionId' => isset( $wgArticle ) ? $wgArticle->getLatest() : 0,
 394                         'wgVersion' => $wgVersion,
 395                         'wgEnableAPI' => $wgEnableAPI,
 396                         'wgEnableWriteAPI' => $wgEnableWriteAPI,
 397                         'wgSeparatorTransformTable' => $compactSeparatorTransTable,
 398                         'wgDigitTransformTable' => $compactDigitTransTable,
 399                 );
 400
 401                 if( $wgUseAjax && $wgEnableMWSuggest && !$wgUser->getOption( 'disablesuggest', false ) ){
 402                         $vars['wgMWSuggestTemplate'] = SearchEngine::getMWSuggestTemplate();
 403                         $vars['wgDBname'] = $wgDBname;
 404                         $vars['wgSearchNamespaces'] = SearchEngine::userNamespaces( $wgUser );
 405                         $vars['wgMWSuggestMessages'] = array( wfMsg( 'search-mwsuggest-enabled' ), wfMsg( 'search-mwsuggest-disabled' ) );
 406                 }
 407
 408                 foreach( $wgRestrictionTypes as $type )
 409                         $vars['wgRestriction' . ucfirst( $type )] = $wgTitle->getRestrictions( $type );
 410
 411                 if ( $wgLivePreview && $wgUser->getOption( 'uselivepreview' ) ) {
 412                         $vars['wgLivepreviewMessageLoading'] = wfMsg( 'livepreview-loading' );
 413                         $vars['wgLivepreviewMessageReady']   = wfMsg( 'livepreview-ready' );
 414                         $vars['wgLivepreviewMessageFailed']  = wfMsg( 'livepreview-failed' );
 415                         $vars['wgLivepreviewMessageError']   = wfMsg( 'livepreview-error' );
 416                 }
 417
 418                 if ( $wgOut->isArticleRelated() && $wgUseAjax && $wgAjaxWatch && $wgUser->isLoggedIn() ) {
 419                         $msgs = (object)array();
 420                         foreach ( array( 'watch', 'unwatch', 'watching', 'unwatching' ) as $msgName ) {
 421                                 $msgs->{$msgName . 'Msg'} = wfMsg( $msgName );
 422                         }
 423                         $vars['wgAjaxWatch'] = $msgs;
 424                 }
 425
 426                 // Allow extensions to add their custom variables to the global JS variables
 427                 wfRunHooks( 'MakeGlobalVariablesScript', array( &$vars ) );
 428
 429                 return self::makeVariablesScript( $vars );
 430         }
 431
 432         function getHeadScripts( $allowUserJs ) {
 433                 global $wgStylePath, $wgUser, $wgJsMimeType, $wgStyleVersion;
 434
 435                 $vars = self::makeGlobalVariablesScript( array( 'skinname' => $this->getSkinName() ) );
 436
 437                 $r = array( "<script type=\"{$wgJsMimeType}\" src=\"{$wgStylePath}/common/wikibits.js?$wgStyleVersion\"></script>" );
 438                 global $wgUseSiteJs;
 439                 if( $wgUseSiteJs ) {
 440                         $jsCache = $wgUser->isLoggedIn() ? '&smaxage=0' : '';
 441                         $r[] = "<script type=\"$wgJsMimeType\" src=\"".
 442                                 htmlspecialchars( self::makeUrl( '-',
 443                                         "action=raw$jsCache&gen=js&useskin=" .
 444                                         urlencode( $this->getSkinName() ) ) ) .
 445                                 "\"><!-- site js --></script>";
 446                 }
 447                 if( $allowUserJs && $wgUser->isLoggedIn() ) {
 448                         $userpage = $wgUser->getUserPage();
 449                         $userjs = htmlspecialchars( self::makeUrl(
 450                                 $userpage->getPrefixedText().'/'.$this->getSkinName().'.js',
 451                                 'action=raw&ctype='.$wgJsMimeType ) );
 452                         $r[] = '<script type="'.$wgJsMimeType.'" src="'.$userjs."\"></script>";
 453                 }
 454                 return $vars . "\t\t" . implode ( "\n\t\t", $r );
 455         }
 456
 457         /**
 458          * To make it harder for someone to slip a user a fake
 459          * user-JavaScript or user-CSS preview, a random token
 460          * is associated with the login session. If it's not
 461          * passed back with the preview request, we won't render
 462          * the code.
 463          *
 464          * @param string $action
 465          * @return bool
 466          * @private
 467          */
 468         function userCanPreview( $action ) {
 469                 global $wgRequest, $wgUser;
 470
 471                 if( $action != 'submit' )
 472                         return false;
 473                 if( !$wgRequest->wasPosted() )
 474                         return false;
 475                 if( !$this->mTitle->userCanEditCssJsSubpage() )
 476                         return false;
 477                 return $wgUser->matchEditToken(
 478                         $wgRequest->getVal( 'wpEditToken' ) );
 479         }
 480
 481         /**
 482          * generated JavaScript action=raw&gen=js
 483          * This returns MediaWiki:Common.js and MediaWiki:[Skinname].js concate-
 484          * nated together.  For some bizarre reason, it does *not* return any
 485          * custom user JS from subpages.  Huh?
 486          *
 487          * There's absolutely no reason to have separate Monobook/Common JSes.
 488          * Any JS that cares can just check the skin variable generated at the
 489          * top.  For now Monobook.js will be maintained, but it should be consi-
 490          * dered deprecated.
 491          *
 492          * @return string
 493          */
 494         public function generateUserJs() {
 495                 global $wgStylePath;
 496
 497                 wfProfileIn( __METHOD__ );
 498
 499                 $s = "/* generated javascript */\n";
 500                 $s .= "var skin = '" . Xml::escapeJsString( $this->getSkinName() ) . "';\n";
 501                 $s .= "var stylepath = '" . Xml::escapeJsString( $wgStylePath ) . "';";
 502                 $s .= "\n\n/* MediaWiki:Common.js */\n";
 503                 $commonJs = wfMsgForContent( 'common.js' );
 504                 if ( !wfEmptyMsg( 'common.js', $commonJs ) ) {
 505                         $s .= $commonJs;
 506                 }
 507
 508                 $s .= "\n\n/* MediaWiki:".ucfirst( $this->getSkinName() ).".js */\n";
 509                 // avoid inclusion of non defined user JavaScript (with custom skins only)
 510                 // by checking for default message content
 511                 $msgKey = ucfirst( $this->getSkinName() ).'.js';
 512                 $userJS = wfMsgForContent( $msgKey );
 513                 if ( !wfEmptyMsg( $msgKey, $userJS ) ) {
 514                         $s .= $userJS;
 515                 }
 516
 517                 wfProfileOut( __METHOD__ );
 518                 return $s;
 519         }
 520
 521         /**
 522          * Generate user stylesheet for action=raw&gen=css
 523          */
 524         public function generateUserStylesheet() {
 525                 wfProfileIn( __METHOD__ );
 526                 $s = "/* generated user stylesheet */\n" .
 527                         $this->reallyGenerateUserStylesheet();
 528                 wfProfileOut( __METHOD__ );
 529                 return $s;
 530         }
 531
 532         /**
 533          * Split for easier subclassing in SkinSimple, SkinStandard and SkinCologneBlue
 534          */
 535         protected function reallyGenerateUserStylesheet(){
 536                 global $wgUser;
 537                 $s = '';
 538                 if( ( $undopt = $wgUser->getOption( 'underline' ) ) < 2 ) {
 539                         $underline = $undopt ? 'underline' : 'none';
 540                         $s .= "a { text-decoration: $underline; }\n";
 541                 }
 542                 if( $wgUser->getOption( 'highlightbroken' ) ) {
 543                         $s .= "a.new, #quickbar a.new { color: #CC2200; }\n";
 544                 } else {
 545                         $s .= <<<END
 546 a.new, #quickbar a.new,
 547 a.stub, #quickbar a.stub {
 548         color: inherit;
 549 }
 550 a.new:after, #quickbar a.new:after {
 551         content: "?";
 552         color: #CC2200;
 553 }
 554 a.stub:after, #quickbar a.stub:after {
 555         content: "!";
 556         color: #772233;
 557 }
 558 END;
 559                 }
 560                 if( $wgUser->getOption( 'justify' ) ) {
 561                         $s .= "#article, #bodyContent, #mw_content { text-align: justify; }\n";
 562                 }
 563                 if( !$wgUser->getOption( 'showtoc' ) ) {
 564                         $s .= "#toc { display: none; }\n";
 565                 }
 566                 if( !$wgUser->getOption( 'editsection' ) ) {
 567                         $s .= ".editsection { display: none; }\n";
 568                 }
 569                 return $s;
 570         }
 571
 572         /**
 573          * @private
 574          */
 575         function setupUserCss( OutputPage $out ) {
 576                 global $wgRequest, $wgContLang, $wgUser;
 577                 global $wgAllowUserCss, $wgUseSiteCss, $wgSquidMaxage, $wgStylePath;
 578
 579                 wfProfileIn( __METHOD__ );
 580
 581                 $this->setupSkinUserCss( $out );
 582
 583                 $siteargs = array(
 584                         'action' => 'raw',
 585                         'maxage' => $wgSquidMaxage,
 586                 );
 587
 588                 // Add any extension CSS
 589                 foreach( $out->getExtStyle() as $tag ) {
 590                         $out->addStyle( $tag['href'] );
 591                 }
 592
 593                 // If we use the site's dynamic CSS, throw that in, too
 594                 // Per-site custom styles
 595                 if( $wgUseSiteCss ) {
 596                         global $wgHandheldStyle;
 597                         $query = wfArrayToCGI( array(
 598                                 'usemsgcache' => 'yes',
 599                                 'ctype' => 'text/css',
 600                                 'smaxage' => $wgSquidMaxage
 601                         ) + $siteargs );
 602                         # Site settings must override extension css! (bug 15025)
 603                         $out->addStyle( self::makeNSUrl( 'Common.css', $query, NS_MEDIAWIKI ) );
 604                         $out->addStyle( self::makeNSUrl( 'Print.css', $query, NS_MEDIAWIKI ), 'print' );
 605                         if( $wgHandheldStyle ) {
 606                                 $out->addStyle( self::makeNSUrl( 'Handheld.css', $query, NS_MEDIAWIKI ), 'handheld' );
 607                         }
 608                         $out->addStyle( self::makeNSUrl( $this->getSkinName() . '.css', $query, NS_MEDIAWIKI ) );
 609                 }
 610
 611                 if( $wgUser->isLoggedIn() ) {
 612                         // Ensure that logged-in users' generated CSS isn't clobbered
 613                         // by anons' publicly cacheable generated CSS.
 614                         $siteargs['smaxage'] = '0';
 615                         $siteargs['ts'] = $wgUser->mTouched;
 616                 }
 617                 // Per-user styles based on preferences
 618                 $siteargs['gen'] = 'css';
 619                 if( ( $us = $wgRequest->getVal( 'useskin', '' ) ) !== '' ) {
 620                         $siteargs['useskin'] = $us;
 621                 }
 622                 $out->addStyle( self::makeUrl( '-', wfArrayToCGI( $siteargs ) ) );
 623
 624                 // Per-user custom style pages
 625                 if( $wgAllowUserCss && $wgUser->isLoggedIn() ) {
 626                         $action = $wgRequest->getVal( 'action' );
 627                         # If we're previewing the CSS page, use it
 628                         if( $this->mTitle->isCssSubpage() && $this->userCanPreview( $action ) ) {
 629                                 $previewCss = $wgRequest->getText( 'wpTextbox1' );
 630                                 // @FIXME: properly escape the cdata!
 631                                 $this->usercss = "/*<![CDATA[*/\n" . $previewCss . "/*]]>*/";
 632                         } else {
 633                                 $out->addStyle( self::makeUrl( $this->userpage . '/' . $this->getSkinName() .'.css',
 634                                         'action=raw&ctype=text/css' ) );
 635                         }
 636                 }
 637
 638                 wfProfileOut( __METHOD__ );
 639         }
 640
 641         /**
 642          * Add skin specific stylesheets
 643          * @param $out OutputPage
 644          */
 645         function setupSkinUserCss( OutputPage $out ) {
 646                 $out->addStyle( 'common/shared.css' );
 647                 $out->addStyle( 'common/oldshared.css' );
 648                 $out->addStyle( $this->getStylesheet() );
 649                 $out->addStyle( 'common/common_rtl.css', '', '', 'rtl' );
 650         }
 651
 652         function getBodyOptions() {
 653                 global $wgUser, $wgOut, $wgRequest, $wgContLang;
 654
 655                 extract( $wgRequest->getValues( 'oldid', 'redirect', 'diff' ) );
 656
 657                 if ( 0 != $this->mTitle->getNamespace() ) {
 658                         $a = array( 'bgcolor' => '#ffffec' );
 659                 }
 660                 else $a = array( 'bgcolor' => '#FFFFFF' );
 661                 if( $wgOut->isArticle() && $wgUser->getOption( 'editondblclick' ) &&
 662                   $this->mTitle->quickUserCan( 'edit' ) ) {
 663                         $s = $this->mTitle->getFullURL( $this->editUrlOptions() );
 664                         $s = 'document.location = "' .Xml::escapeJsString( $s ) .'";';
 665                         $a += array( 'ondblclick' => $s );
 666                 }
 667                 $a['onload'] = $wgOut->getOnloadHandler();
 668                 $a['class'] =
 669                         'mediawiki' .
 670                         ' '.( $wgContLang->isRTL() ? 'rtl' : 'ltr' ).
 671                         ' '.$this->getPageClasses( $this->mTitle ) .
 672                         ' skin-'. Sanitizer::escapeClass( $this->getSkinName() );
 673                 return $a;
 674         }
 675
 676         function getPageClasses( $title ) {
 677                 $numeric = 'ns-'.$title->getNamespace();
 678                 if( $title->getNamespace() == NS_SPECIAL ) {
 679                         $type = 'ns-special';
 680                 } elseif( $title->isTalkPage() ) {
 681                         $type = 'ns-talk';
 682                 } else {
 683                         $type = 'ns-subject';
 684                 }
 685                 $name = Sanitizer::escapeClass( 'page-'.$title->getPrefixedText() );
 686                 return "$numeric $type $name";
 687         }
 688
 689         /**
 690          * URL to the logo
 691          */
 692         function getLogo() {
 693                 global $wgLogo;
 694                 return $wgLogo;
 695         }
 696
 697         /**
 698          * This will be called immediately after the <body> tag.  Split into
 699          * two functions to make it easier to subclass.
 700          */
 701         function beforeContent() {
 702                 return $this->doBeforeContent();
 703         }
 704
 705         function doBeforeContent() {
 706                 global $wgContLang;
 707                 wfProfileIn( __METHOD__ );
 708
 709                 $s = '';
 710                 $qb = $this->qbSetting();
 711
 712                 if( $langlinks = $this->otherLanguages() ) {
 713                         $rows = 2;
 714                         $borderhack = '';
 715                 } else {
 716                         $rows = 1;
 717                         $langlinks = false;
 718                         $borderhack = 'class="top"';
 719                 }
 720
 721                 $s .= "\n<div id='content'>\n<div id='topbar'>\n" .
 722                   "<table border='0' cellspacing='0' width='98%'>\n<tr>\n";
 723
 724                 $shove = ( $qb != 0 );
 725                 $left = ( $qb == 1 || $qb == 3 );
 726                 if( $wgContLang->isRTL() ) $left = !$left;
 727
 728                 if( !$shove ) {
 729                         $s .= "<td class='top' align='left' valign='top' rowspan='{$rows}'>\n" .
 730                           $this->logoText() . '</td>';
 731                 } elseif( $left ) {
 732                         $s .= $this->getQuickbarCompensator( $rows );
 733                 }
 734                 $l = $wgContLang->isRTL() ? 'right' : 'left';
 735                 $s .= "<td {$borderhack} align='$l' valign='top'>\n";
 736
 737                 $s .= $this->topLinks();
 738                 $s .= "<p class='subtitle'>" . $this->pageTitleLinks() . "</p>\n";
 739
 740                 $r = $wgContLang->isRTL() ? 'left' : 'right';
 741                 $s .= "</td>\n<td {$borderhack} valign='top' align='$r' nowrap='nowrap'>";
 742                 $s .= $this->nameAndLogin();
 743                 $s .= "\n<br />" . $this->searchForm() . "</td>";
 744
 745                 if ( $langlinks ) {
 746                         $s .= "</tr>\n<tr>\n<td class='top' colspan=\"2\">$langlinks</td>\n";
 747                 }
 748
 749                 if ( $shove && !$left ) { # Right
 750                         $s .= $this->getQuickbarCompensator( $rows );
 751                 }
 752                 $s .= "</tr>\n</table>\n</div>\n";
 753                 $s .= "\n<div id='article'>\n";
 754
 755                 $notice = wfGetSiteNotice();
 756                 if( $notice ) {
 757                         $s .= "\n<div id='siteNotice'>$notice</div>\n";
 758                 }
 759                 $s .= $this->pageTitle();
 760                 $s .= $this->pageSubtitle();
 761                 $s .= $this->getCategories();
 762                 wfProfileOut( __METHOD__ );
 763                 return $s;
 764         }
 765
 766
 767         function getCategoryLinks() {
 768                 global $wgOut, $wgUseCategoryBrowser;
 769                 global $wgContLang, $wgUser;
 770
 771                 if( count( $wgOut->mCategoryLinks ) == 0 ) return '';
 772
 773                 # Separator
 774                 $sep = wfMsgExt( 'catseparator', array( 'parsemag', 'escapenoentities' ) );
 775
 776                 // Use Unicode bidi embedding override characters,
 777                 // to make sure links don't smash each other up in ugly ways.
 778                 $dir = $wgContLang->isRTL() ? 'rtl' : 'ltr';
 779                 $embed = "<span dir='$dir'>";
 780                 $pop = '</span>';
 781
 782                 $allCats = $wgOut->getCategoryLinks();
 783                 $s = '';
 784                 $colon = wfMsgExt( 'colon-separator', 'escapenoentities' );
 785                 if ( !empty( $allCats['normal'] ) ) {
 786                         $t = $embed . implode( "{$pop} {$sep} {$embed}" , $allCats['normal'] ) . $pop;
 787
 788                         $msg = wfMsgExt( 'pagecategories', array( 'parsemag', 'escapenoentities' ), count( $allCats['normal'] ) );
 789                         $s .= '<div id="mw-normal-catlinks">' .
 790                                 $this->link( Title::newFromText( wfMsgForContent( 'pagecategorieslink' ) ), $msg )
 791                                 . $colon . $t . '</div>';
 792                 }
 793
 794                 # Hidden categories
 795                 if ( isset( $allCats['hidden'] ) ) {
 796                         if ( $wgUser->getBoolOption( 'showhiddencats' ) ) {
 797                                 $class ='mw-hidden-cats-user-shown';
 798                         } elseif ( $this->mTitle->getNamespace() == NS_CATEGORY ) {
 799                                 $class = 'mw-hidden-cats-ns-shown';
 800                         } else {
 801                                 $class = 'mw-hidden-cats-hidden';
 802                         }
 803                         $s .= "<div id=\"mw-hidden-catlinks\" class=\"$class\">" .
 804                                 wfMsgExt( 'hidden-categories', array( 'parsemag', 'escapenoentities' ), count( $allCats['hidden'] ) ) .
 805                                 $colon . $embed . implode( "$pop $sep $embed", $allCats['hidden'] ) . $pop .
 806                                 "</div>";
 807                 }
 808
 809                 # optional 'dmoz-like' category browser. Will be shown under the list
 810                 # of categories an article belong to
 811                 if( $wgUseCategoryBrowser ){
 812                         $s .= '<br /><hr />';
 813
 814                         # get a big array of the parents tree
 815                         $parenttree = $this->mTitle->getParentCategoryTree();
 816                         # Skin object passed by reference cause it can not be
 817                         # accessed under the method subfunction drawCategoryBrowser
 818                         $tempout = explode( "\n", Skin::drawCategoryBrowser( $parenttree, $this ) );
 819                         # Clean out bogus first entry and sort them
 820                         unset( $tempout[0] );
 821                         asort( $tempout );
 822                         # Output one per line
 823                         $s .= implode( "<br />\n", $tempout );
 824                 }
 825
 826                 return $s;
 827         }
 828
 829         /**
 830          * Render the array as a serie of links.
 831          * @param $tree Array: categories tree returned by Title::getParentCategoryTree
 832          * @param &skin Object: skin passed by reference
 833          * @return String separated by &gt;, terminate with "\n"
 834          */
 835         function drawCategoryBrowser( $tree, &$skin ){
 836                 $return = '';
 837                 foreach( $tree as $element => $parent ) {
 838                         if( empty( $parent ) ) {
 839                                 # element start a new list
 840                                 $return .= "\n";
 841                         } else {
 842                                 # grab the others elements
 843                                 $return .= Skin::drawCategoryBrowser( $parent, $skin ) . ' &gt; ';
 844                         }
 845                         # add our current element to the list
 846                         $eltitle = Title::newFromText( $element );
 847                         $return .=  $skin->link( $eltitle, $eltitle->getText() );
 848                 }
 849                 return $return;
 850         }
 851
 852         function getCategories() {
 853                 $catlinks=$this->getCategoryLinks();
 854
 855                 $classes = 'catlinks';
 856
 857                 if( strpos( $catlinks, '<div id="mw-normal-catlinks">' ) === false &&
 858                         strpos( $catlinks, '<div id="mw-hidden-catlinks" class="mw-hidden-cats-hidden">' ) !== false ) {
 859                         $classes .= ' catlinks-allhidden';
 860                 }
 861
 862                 if( !empty( $catlinks ) ){
 863                         return "<div id='catlinks' class='$classes'>{$catlinks}</div>";
 864                 }
 865         }
 866
 867         function getQuickbarCompensator( $rows = 1 ) {
 868                 return "<td width='152' rowspan='{$rows}'>&nbsp;</td>";
 869         }
 870
 871         /**
 872          * This runs a hook to allow extensions placing their stuff after content
 873          * and article metadata (e.g. categories).
 874          * Note: This function has nothing to do with afterContent().
 875          *
 876          * This hook is placed here in order to allow using the same hook for all
 877          * skins, both the SkinTemplate based ones and the older ones, which directly
 878          * use this class to get their data.
 879          *
 880          * The output of this function gets processed in SkinTemplate::outputPage() for
 881          * the SkinTemplate based skins, all other skins should directly echo it.
 882          *
 883          * Returns an empty string by default, if not changed by any hook function.
 884          */
 885         protected function afterContentHook() {
 886                 $data = '';
 887
 888                 if( wfRunHooks( 'SkinAfterContent', array( &$data ) ) ){
 889                         // adding just some spaces shouldn't toggle the output
 890                         // of the whole <div/>, so we use trim() here
 891                         if( trim( $data ) != '' ){
 892                                 // Doing this here instead of in the skins to
 893                                 // ensure that the div has the same ID in all
 894                                 // skins
 895                                 $data = "<div id='mw-data-after-content'>\n" .
 896                                         "\t$data\n" .
 897                                         "</div>\n";
 898                         }
 899                 } else {
 900                         wfDebug( "Hook SkinAfterContent changed output processing.\n" );
 901                 }
 902
 903                 return $data;
 904         }
 905
 906         /**
 907          * Generate debug data HTML for displaying at the bottom of the main content
 908          * area.
 909          * @return String HTML containing debug data, if enabled (otherwise empty).
 910          */
 911         protected function generateDebugHTML() {
 912                 global $wgShowDebug, $wgOut;
 913                 if ( $wgShowDebug ) {
 914                         $listInternals = str_replace( "\n", "</li>\n<li>", htmlspecialchars( $wgOut->mDebugtext ) );
 915                         return "\n<hr>\n<strong>Debug data:</strong><ul style=\"font-family:monospace;\"><li>" .
 916                                 $listInternals . "</li></ul>\n";
 917                 }
 918                 return '';
 919         }
 920
 921         /**
 922          * This gets called shortly before the </body> tag.
 923          * @return String HTML to be put before </body>
 924          */
 925         function afterContent() {
 926                 $printfooter = "<div class=\"printfooter\">\n" . $this->printFooter() . "</div>\n";
 927                 return $printfooter . $this->generateDebugHTML() . $this->doAfterContent();
 928         }
 929
 930         /**
 931          * This gets called shortly before the </body> tag.
 932          * @return String HTML-wrapped JS code to be put before </body>
 933          */
 934         function bottomScripts() {
 935                 global $wgJsMimeType;
 936                 $bottomScriptText = "\n\t\t<script type=\"$wgJsMimeType\">if (window.runOnloadHook) runOnloadHook();</script>\n";
 937                 wfRunHooks( 'SkinAfterBottomScripts', array( $this, &$bottomScriptText ) );
 938                 return $bottomScriptText;
 939         }
 940
 941         /** @return string Retrievied from HTML text */
 942         function printSource() {
 943                 $url = htmlspecialchars( $this->mTitle->getFullURL() );
 944                 return wfMsg( 'retrievedfrom', '<a href="'.$url.'">'.$url.'</a>' );
 945         }
 946
 947         function printFooter() {
 948                 return "<p>" .  $this->printSource() .
 949                         "</p>\n\n<p>" . $this->pageStats() . "</p>\n";
 950         }
 951
 952         /** overloaded by derived classes */
 953         function doAfterContent() { return '</div></div>'; }
 954
 955         function pageTitleLinks() {
 956                 global $wgOut, $wgUser, $wgRequest, $wgLang;
 957
 958                 $oldid = $wgRequest->getVal( 'oldid' );
 959                 $diff = $wgRequest->getVal( 'diff' );
 960                 $action = $wgRequest->getText( 'action' );
 961
 962                 $s[] = $this->printableLink();
 963                 $disclaimer = $this->disclaimerLink(); # may be empty
 964                 if( $disclaimer ) {
 965                         $s[] = $disclaimer;
 966                 }
 967                 $privacy = $this->privacyLink(); # may be empty too
 968                 if( $privacy ) {
 969                         $s[] = $privacy;
 970                 }
 971
 972                 if ( $wgOut->isArticleRelated() ) {
 973                         if ( $this->mTitle->getNamespace() == NS_FILE ) {
 974                                 $name = $this->mTitle->getDBkey();
 975                                 $image = wfFindFile( $this->mTitle );
 976                                 if( $image ) {
 977                                         $link = htmlspecialchars( $image->getURL() );
 978                                         $style = $this->getInternalLinkAttributes( $link, $name );
 979                                         $s[] = "<a href=\"{$link}\"{$style}>{$name}</a>";
 980                                 }
 981                         }
 982                 }
 983                 if ( 'history' == $action || isset( $diff ) || isset( $oldid ) ) {
 984                         $s[] .= $this->makeKnownLinkObj( $this->mTitle,
 985                                         wfMsg( 'currentrev' ) );
 986                 }
 987
 988                 if ( $wgUser->getNewtalk() ) {
 989                         # do not show "You have new messages" text when we are viewing our
 990                         # own talk page
 991                         if( !$this->mTitle->equals( $wgUser->getTalkPage() ) ) {
 992                                 $tl = $this->makeKnownLinkObj( $wgUser->getTalkPage(), wfMsgHtml( 'newmessageslink' ), 'redirect=no' );
 993                                 $dl = $this->makeKnownLinkObj( $wgUser->getTalkPage(), wfMsgHtml( 'newmessagesdifflink' ), 'diff=cur' );
 994                                 $s[] = '<strong>'. wfMsg( 'youhavenewmessages', $tl, $dl ) . '</strong>';
 995                                 # disable caching
 996                                 $wgOut->setSquidMaxage( 0 );
 997                                 $wgOut->enableClientCache( false );
 998                         }
 999                 }
1000
1001                 $undelete = $this->getUndeleteLink();
1002                 if( !empty( $undelete ) ) {
1003                         $s[] = $undelete;
1004                 }
1005                 return $wgLang->pipeList( $s );
1006         }
1007
1008         function getUndeleteLink() {
1009                 global $wgUser, $wgContLang, $wgLang, $action;
1010                 if(     $wgUser->isAllowed( 'deletedhistory' ) &&
1011                         ( ( $this->mTitle->getArticleId() == 0 ) || ( $action == 'history' ) ) &&
1012                         ( $n = $this->mTitle->isDeleted() ) ){
1013                         if ( $wgUser->isAllowed( 'undelete' ) ) {
1014                                 $msg = 'thisisdeleted';
1015                         } else {
1016                                 $msg = 'viewdeleted';
1017                         }
1018                         return wfMsg( $msg,
1019                                 $this->makeKnownLinkObj(
1020                                         SpecialPage::getTitleFor( 'Undelete', $this->mTitle->getPrefixedDBkey() ),
1021                                         wfMsgExt( 'restorelink', array( 'parsemag', 'escape' ), $wgLang->formatNum( $n ) ) ) );
1022                 }
1023                 return '';
1024         }
1025
1026         function printableLink() {
1027                 global $wgOut, $wgFeedClasses, $wgRequest, $wgLang;
1028
1029                 $printurl = $wgRequest->escapeAppendQuery( 'printable=yes' );
1030
1031                 $s[] = "<a href=\"$printurl\" rel=\"alternate\">" . wfMsg( 'printableversion' ) . '</a>';
1032                 if( $wgOut->isSyndicated() ) {
1033                         foreach( $wgFeedClasses as $format => $class ) {
1034                                 $feedurl = $wgRequest->escapeAppendQuery( "feed=$format" );
1035                                 $s[] = "<a href=\"$feedurl\" rel=\"alternate\" type=\"application/{$format}+xml\""
1036                                                 . " class=\"feedlink\">" . wfMsgHtml( "feed-$format" ) . "</a>";
1037                         }
1038                 }
1039                 return $wgLang->pipeList( $s );
1040         }
1041
1042         function pageTitle() {
1043                 global $wgOut;
1044                 $s = '<h1 class="pagetitle">' . $wgOut->getPageTitle() . '</h1>';
1045                 return $s;
1046         }
1047
1048         function pageSubtitle() {
1049                 global $wgOut;
1050
1051                 $sub = $wgOut->getSubtitle();
1052                 if ( '' == $sub ) {
1053                         global $wgExtraSubtitle;
1054                         $sub = wfMsgExt( 'tagline', 'parsemag' ) . $wgExtraSubtitle;
1055                 }
1056                 $subpages = $this->subPageSubtitle();
1057                 $sub .= !empty( $subpages ) ? "</p><p class='subpages'>$subpages" : '';
1058                 $s = "<p class='subtitle'>{$sub}</p>\n";
1059                 return $s;
1060         }
1061
1062         function subPageSubtitle() {
1063                 $subpages = '';
1064                 if( !wfRunHooks( 'SkinSubPageSubtitle', array( &$subpages ) ) )
1065                         return $subpages;
1066
1067                 global $wgOut;
1068                 if( $wgOut->isArticle() && MWNamespace::hasSubpages( $this->mTitle->getNamespace() ) ) {
1069                         $ptext = $this->mTitle->getPrefixedText();
1070                         if( preg_match( '/\//', $ptext ) ) {
1071                                 $links = explode( '/', $ptext );
1072                                 array_pop( $links );
1073                                 $c = 0;
1074                                 $growinglink = '';
1075                                 $display = '';
1076                                 foreach( $links as $link ) {
1077                                         $growinglink .= $link;
1078                                         $display .= $link;
1079                                         $linkObj = Title::newFromText( $growinglink );
1080                                         if( is_object( $linkObj ) && $linkObj->exists() ){
1081                                                 $getlink = $this->makeKnownLinkObj( $linkObj, htmlspecialchars( $display ) );
1082                                                 $c++;
1083                                                 if( $c > 1 ) {
1084                                                         $subpages .= wfMsgExt( 'pipe-separator', 'escapenoentities' );
1085                                                 } else  {
1086                                                         $subpages .= '&lt; ';
1087                                                 }
1088                                                 $subpages .= $getlink;
1089                                                 $display = '';
1090                                         } else {
1091                                                 $display .= '/';
1092                                         }
1093                                         $growinglink .= '/';
1094                                 }
1095                         }
1096                 }
1097                 return $subpages;
1098         }
1099
1100         /**
1101          * Returns true if the IP should be shown in the header
1102          */
1103         function showIPinHeader() {
1104                 global $wgShowIPinHeader;
1105                 return $wgShowIPinHeader && session_id() != '';
1106         }
1107
1108         function nameAndLogin() {
1109                 global $wgUser, $wgLang, $wgContLang;
1110
1111                 $logoutPage = $wgContLang->specialPage( 'Userlogout' );
1112
1113                 $ret = '';
1114                 if ( $wgUser->isAnon() ) {
1115                         if( $this->showIPinHeader() ) {
1116                                 $name = wfGetIP();
1117
1118                                 $talkLink = $this->link( $wgUser->getTalkPage(),
1119                                         $wgLang->getNsText( NS_TALK ) );
1120
1121                                 $ret .= "$name ($talkLink)";
1122                         } else {
1123                                 $ret .= wfMsg( 'notloggedin' );
1124                         }
1125
1126                         $returnTo = $this->mTitle->getPrefixedDBkey();
1127                         $query = array();
1128                         if ( $logoutPage != $returnTo ) {
1129                                 $query['returnto'] = $returnTo;
1130                         }
1131
1132                         $loginlink = $wgUser->isAllowed( 'createaccount' )
1133                                 ? 'nav-login-createaccount'
1134                                 : 'login';
1135                         $ret .= "\n<br />" . $this->link(
1136                                 SpecialPage::getTitleFor( 'Userlogin' ),
1137                                 wfMsg( $loginlink ), array(), $query
1138                         );
1139                 } else {
1140                         $returnTo = $this->mTitle->getPrefixedDBkey();
1141                         $talkLink = $this->link( $wgUser->getTalkPage(),
1142                                 $wgLang->getNsText( NS_TALK ) );
1143
1144                         $ret .= $this->link( $wgUser->getUserPage(),
1145                                 htmlspecialchars( $wgUser->getName() ) );
1146                         $ret .= " ($talkLink)<br />";
1147                         $ret .= $wgLang->pipeList( array(
1148                                 $this->link(
1149                                         SpecialPage::getTitleFor( 'Userlogout' ), wfMsg( 'logout' ),
1150                                         array(), array( 'returnto' => $returnTo )
1151                                 ),
1152                                 $this->specialLink( 'preferences' ),
1153                         ) );
1154                 }
1155                 $ret = $wgLang->pipeList( array(
1156                         $ret,
1157                         $this->link(
1158                                 Title::newFromText( wfMsgForContent( 'helppage' ) ),
1159                                 wfMsg( 'help' )
1160                         ),
1161                 ) );
1162
1163                 return $ret;
1164         }
1165
1166         function getSearchLink() {
1167                 $searchPage = SpecialPage::getTitleFor( 'Search' );
1168                 return $searchPage->getLocalURL();
1169         }
1170
1171         function escapeSearchLink() {
1172                 return htmlspecialchars( $this->getSearchLink() );
1173         }
1174
1175         function searchForm() {
1176                 global $wgRequest, $wgUseTwoButtonsSearchForm;
1177                 $search = $wgRequest->getText( 'search' );
1178
1179                 $s = '<form id="searchform'.$this->searchboxes.'" name="search" class="inline" method="post" action="'
1180                   . $this->escapeSearchLink() . "\">\n"
1181                   . '<input type="text" id="searchInput'.$this->searchboxes.'" name="search" size="19" value="'
1182                   . htmlspecialchars( substr( $search, 0, 256 ) ) . "\" />\n"
1183                   . '<input type="submit" name="go" value="' . wfMsg( 'searcharticle' ) . '" />';
1184
1185                 if( $wgUseTwoButtonsSearchForm )
1186                         $s .= '&nbsp;<input type="submit" name="fulltext" value="' . wfMsg( 'searchbutton' ) . "\" />\n";
1187                 else
1188                         $s .= ' <a href="' . $this->escapeSearchLink() . '" rel="search">' . wfMsg( 'powersearch-legend' ) . "</a>\n";
1189
1190                 $s .= '</form>';
1191
1192                 // Ensure unique id's for search boxes made after the first
1193                 $this->searchboxes = $this->searchboxes == '' ? 2 : $this->searchboxes + 1;
1194
1195                 return $s;
1196         }
1197
1198         function topLinks() {
1199                 global $wgOut;
1200
1201                 $s = array(
1202                         $this->mainPageLink(),
1203                         $this->specialLink( 'recentchanges' )
1204                 );
1205
1206                 if ( $wgOut->isArticleRelated() ) {
1207                         $s[] = $this->editThisPage();
1208                         $s[] = $this->historyLink();
1209                 }
1210                 # Many people don't like this dropdown box
1211                 #$s[] = $this->specialPagesList();
1212
1213                 if( $this->variantLinks() ) {
1214                         $s[] = $this->variantLinks();
1215                 }
1216
1217                 if( $this->extensionTabLinks() ) {
1218                         $s[] = $this->extensionTabLinks();
1219                 }
1220
1221                 // FIXME: Is using Language::pipeList impossible here? Do not quite understand the use of the newline
1222                 return implode( $s, wfMsgExt( 'pipe-separator', 'escapenoentities' ) . "\n" );
1223         }
1224
1225         /**
1226          * Compatibility for extensions adding functionality through tabs.
1227          * Eventually these old skins should be replaced with SkinTemplate-based
1228          * versions, sigh...
1229          * @return string
1230          */
1231         function extensionTabLinks() {
1232                 $tabs = array();
1233                 $out = '';
1234                 $s = array();
1235                 wfRunHooks( 'SkinTemplateTabs', array( $this, &$tabs ) );
1236                 foreach( $tabs as $tab ) {
1237                         $s[] = Xml::element( 'a',
1238                                 array( 'href' => $tab['href'] ),
1239                                 $tab['text'] );
1240                 }
1241
1242                 if( count( $s ) ) {
1243                         global $wgLang;
1244
1245                         $out = wfMsgExt( 'pipe-separator' , 'escapenoentities' );
1246                         $out .= $wgLang->pipeList( $s );
1247                 }
1248
1249                 return $out;
1250         }
1251
1252         /**
1253          * Language/charset variant links for classic-style skins
1254          * @return string
1255          */
1256         function variantLinks() {
1257                 $s = '';
1258                 /* show links to different language variants */
1259                 global $wgDisableLangConversion, $wgLang, $wgContLang;
1260                 $variants = $wgContLang->getVariants();
1261                 if( !$wgDisableLangConversion && sizeof( $variants ) > 1 ) {
1262                         foreach( $variants as $code ) {
1263                                 $varname = $wgContLang->getVariantname( $code );
1264                                 if( $varname == 'disable' )
1265                                         continue;
1266                                 $s = $wgLang->pipeList( array(
1267                                         $s,
1268                                         '<a href="' . $this->mTitle->escapeLocalUrl( 'variant=' . $code ) . '">' . htmlspecialchars( $varname ) . '</a>'
1269                                 ) );
1270                         }
1271                 }
1272                 return $s;
1273         }
1274
1275         function bottomLinks() {
1276                 global $wgOut, $wgUser, $wgUseTrackbacks;
1277                 $sep = wfMsgExt( 'pipe-separator', 'escapenoentities' ) . "\n";
1278
1279                 $s = '';
1280                 if ( $wgOut->isArticleRelated() ) {
1281                         $element[] = '<strong>' . $this->editThisPage() . '</strong>';
1282                         if ( $wgUser->isLoggedIn() ) {
1283                                 $element[] = $this->watchThisPage();
1284                         }
1285                         $element[] = $this->talkLink();
1286                         $element[] = $this->historyLink();
1287                         $element[] = $this->whatLinksHere();
1288                         $element[] = $this->watchPageLinksLink();
1289
1290                         if( $wgUseTrackbacks )
1291                                 $element[] = $this->trackbackLink();
1292
1293                         if ( $this->mTitle->getNamespace() == NS_USER
1294                             || $this->mTitle->getNamespace() == NS_USER_TALK ){
1295                                 $id = User::idFromName( $this->mTitle->getText() );
1296                                 $ip = User::isIP( $this->mTitle->getText() );
1297
1298                                 if( $id || $ip ) { # both anons and non-anons have contri list
1299                                         $element[] = $this->userContribsLink();
1300                                 }
1301                                 if( $this->showEmailUser( $id ) ) {
1302                                         $element[] = $this->emailUserLink();
1303                                 }
1304                         }
1305
1306                         $s = implode( $element, $sep );
1307
1308                         if ( $this->mTitle->getArticleId() ) {
1309                                 $s .= "\n<br />";
1310                                 if( $wgUser->isAllowed( 'delete' ) ) { $s .= $this->deleteThisPage(); }
1311                                 if( $wgUser->isAllowed( 'protect' ) ) { $s .= $sep . $this->protectThisPage(); }
1312                                 if( $wgUser->isAllowed( 'move' ) ) { $s .= $sep . $this->moveThisPage(); }
1313                         }
1314                         $s .= "<br />\n" . $this->otherLanguages();
1315                 }
1316
1317                 return $s;
1318         }
1319
1320         function pageStats() {
1321                 global $wgOut, $wgLang, $wgArticle, $wgRequest, $wgUser;
1322                 global $wgDisableCounters, $wgMaxCredits, $wgShowCreditsIfMax, $wgPageShowWatchingUsers;
1323
1324                 $oldid = $wgRequest->getVal( 'oldid' );
1325                 $diff = $wgRequest->getVal( 'diff' );
1326                 if ( ! $wgOut->isArticle() ) { return ''; }
1327                 if( !$wgArticle instanceOf Article ) { return ''; }
1328                 if ( isset( $oldid ) || isset( $diff ) ) { return ''; }
1329                 if ( 0 == $wgArticle->getID() ) { return ''; }
1330
1331                 $s = '';
1332                 if ( !$wgDisableCounters ) {
1333                         $count = $wgLang->formatNum( $wgArticle->getCount() );
1334                         if ( $count ) {
1335                                 $s = wfMsgExt( 'viewcount', array( 'parseinline' ), $count );
1336                         }
1337                 }
1338
1339                 if( $wgMaxCredits != 0 ){
1340                         $s .= ' ' . Credits::getCredits( $wgArticle, $wgMaxCredits, $wgShowCreditsIfMax );
1341                 } else {
1342                         $s .= $this->lastModified();
1343                 }
1344
1345                 if( $wgPageShowWatchingUsers && $wgUser->getOption( 'shownumberswatching' ) ) {
1346                         $dbr = wfGetDB( DB_SLAVE );
1347                         $res = $dbr->select( 'watchlist',
1348                                 array( 'COUNT(*) AS n' ),
1349                                 array( 'wl_title' => $dbr->strencode( $this->mTitle->getDBkey() ), 'wl_namespace' => $this->mTitle->getNamespace() ),
1350                                 __METHOD__
1351                         );
1352                         $x = $dbr->fetchObject( $res );
1353
1354                         $s .= ' ' . wfMsgExt( 'number_of_watching_users_pageview',
1355                                 array( 'parseinline' ), $wgLang->formatNum( $x->n )
1356                         );
1357                 }
1358
1359                 return $s . ' ' .  $this->getCopyright();
1360         }
1361
1362         function getCopyright( $type = 'detect' ) {
1363                 global $wgRightsPage, $wgRightsUrl, $wgRightsText, $wgRequest, $wgArticle;
1364
1365                 if ( $type == 'detect' ) {
1366                         $diff = $wgRequest->getVal( 'diff' );
1367                         $isCur = $wgArticle && $wgArticle->isCurrent();
1368                         if ( is_null( $diff ) && !$isCur && wfMsgForContent( 'history_copyright' ) !== '-' ) {
1369                                 $type = 'history';
1370                         } else {
1371                                 $type = 'normal';
1372                         }
1373                 }
1374
1375                 if ( $type == 'history' ) {
1376                         $msg = 'history_copyright';
1377                 } else {
1378                         $msg = 'copyright';
1379                 }
1380
1381                 $out = '';
1382                 if( $wgRightsPage ) {
1383                         $link = $this->makeKnownLink( $wgRightsPage, $wgRightsText );
1384                 } elseif( $wgRightsUrl ) {
1385                         $link = $this->makeExternalLink( $wgRightsUrl, $wgRightsText );
1386                 } elseif( $wgRightsText ) {
1387                         $link = $wgRightsText;
1388                 } else {
1389                         # Give up now
1390                         return $out;
1391                 }
1392                 $out .= wfMsgForContent( $msg, $link );
1393                 return $out;
1394         }
1395
1396         function getCopyrightIcon() {
1397                 global $wgRightsUrl, $wgRightsText, $wgRightsIcon, $wgCopyrightIcon;
1398                 $out = '';
1399                 if ( isset( $wgCopyrightIcon ) && $wgCopyrightIcon ) {
1400                         $out = $wgCopyrightIcon;
1401                 } else if ( $wgRightsIcon ) {
1402                         $icon = htmlspecialchars( $wgRightsIcon );
1403                         if ( $wgRightsUrl ) {
1404                                 $url = htmlspecialchars( $wgRightsUrl );
1405                                 $out .= '<a href="'.$url.'">';
1406                         }
1407                         $text = htmlspecialchars( $wgRightsText );
1408                         $out .= "<img src=\"$icon\" alt='$text' />";
1409                         if ( $wgRightsUrl ) {
1410                                 $out .= '</a>';
1411                         }
1412                 }
1413                 return $out;
1414         }
1415
1416         function getPoweredBy() {
1417                 global $wgStylePath;
1418                 $url = htmlspecialchars( "$wgStylePath/common/images/poweredby_mediawiki_88x31.png" );
1419                 $img = '<a href="http://www.mediawiki.org/"><img src="'.$url.'" alt="Powered by MediaWiki" /></a>';
1420                 return $img;
1421         }
1422
1423         function lastModified() {
1424                 global $wgLang, $wgArticle;
1425                 if( $this->mRevisionId ) {
1426                         $timestamp = Revision::getTimestampFromId( $wgArticle->getTitle(), $this->mRevisionId );
1427                 } else {
1428                         $timestamp = $wgArticle->getTimestamp();
1429                 }
1430                 if ( $timestamp ) {
1431                         $d = $wgLang->date( $timestamp, true );
1432                         $t = $wgLang->time( $timestamp, true );
1433                         $s = ' ' . wfMsg( 'lastmodifiedat', $d, $t );
1434                 } else {
1435                         $s = '';
1436                 }
1437                 if ( wfGetLB()->getLaggedSlaveMode() ) {
1438                         $s .= ' <strong>' . wfMsg( 'laggedslavemode' ) . '</strong>';
1439                 }
1440                 return $s;
1441         }
1442
1443         function logoText( $align = '' ) {
1444                 if ( '' != $align ) {
1445                         $a = " align='{$align}'";
1446                 } else {
1447                         $a = '';
1448                 }
1449
1450                 $mp = wfMsg( 'mainpage' );
1451                 $mptitle = Title::newMainPage();
1452                 $url = ( is_object( $mptitle ) ? $mptitle->escapeLocalURL() : '' );
1453
1454                 $logourl = $this->getLogo();
1455                 $s = "<a href='{$url}'><img{$a} src='{$logourl}' alt='[{$mp}]' /></a>";
1456                 return $s;
1457         }
1458
1459         /**
1460          * show a drop-down box of special pages
1461          */
1462         function specialPagesList() {
1463                 global $wgUser, $wgContLang, $wgServer, $wgRedirectScript;
1464                 $pages = array_merge( SpecialPage::getRegularPages(), SpecialPage::getRestrictedPages() );
1465                 foreach ( $pages as $name => $page ) {
1466                         $pages[$name] = $page->getDescription();
1467                 }
1468
1469                 $go = wfMsg( 'go' );
1470                 $sp = wfMsg( 'specialpages' );
1471                 $spp = $wgContLang->specialPage( 'Specialpages' );
1472
1473                 $s = '<form id="specialpages" method="get" ' .
1474                   'action="' . htmlspecialchars( "{$wgServer}{$wgRedirectScript}" ) . "\">\n";
1475                 $s .= "<select name=\"wpDropdown\">\n";
1476                 $s .= "<option value=\"{$spp}\">{$sp}</option>\n";
1477
1478
1479                 foreach ( $pages as $name => $desc ) {
1480                         $p = $wgContLang->specialPage( $name );
1481                         $s .= "<option value=\"{$p}\">{$desc}</option>\n";
1482                 }
1483                 $s .= "</select>\n";
1484                 $s .= "<input type='submit' value=\"{$go}\" name='redirect' />\n";
1485                 $s .= "</form>\n";
1486                 return $s;
1487         }
1488
1489         function mainPageLink() {
1490                 $s = $this->makeKnownLinkObj( Title::newMainPage(), wfMsg( 'mainpage' ) );
1491                 return $s;
1492         }
1493
1494         function copyrightLink() {
1495                 $s = $this->makeKnownLink( wfMsgForContent( 'copyrightpage' ),
1496                   wfMsg( 'copyrightpagename' ) );
1497                 return $s;
1498         }
1499
1500         private function footerLink ( $desc, $page ) {
1501                 // if the link description has been set to "-" in the default language,
1502                 if ( wfMsgForContent( $desc )  == '-') {
1503                         // then it is disabled, for all languages.
1504                         return '';
1505                 } else {
1506                         // Otherwise, we display the link for the user, described in their
1507                         // language (which may or may not be the same as the default language),
1508                         // but we make the link target be the one site-wide page.
1509                         return $this->makeKnownLink( wfMsgForContent( $page ),
1510                                 wfMsgExt( $desc, array( 'parsemag', 'escapenoentities' ) ) );
1511                 }
1512         }
1513
1514         function privacyLink() {
1515                 return $this->footerLink( 'privacy', 'privacypage' );
1516         }
1517
1518         function aboutLink() {
1519                 return $this->footerLink( 'aboutsite', 'aboutpage' );
1520         }
1521
1522         function disclaimerLink() {
1523                 return $this->footerLink( 'disclaimers', 'disclaimerpage' );
1524         }
1525
1526         function editThisPage() {
1527                 global $wgOut;
1528
1529                 if ( !$wgOut->isArticleRelated() ) {
1530                         $s = wfMsg( 'protectedpage' );
1531                 } else {
1532                         if( $this->mTitle->quickUserCan( 'edit' ) && $this->mTitle->exists() ) {
1533                                 $t = wfMsg( 'editthispage' );
1534                         } elseif( $this->mTitle->quickUserCan( 'create' ) && !$this->mTitle->exists() ) {
1535                                 $t = wfMsg( 'create-this-page' );
1536                         } else {
1537                                 $t = wfMsg( 'viewsource' );
1538                         }
1539
1540                         $s = $this->makeKnownLinkObj( $this->mTitle, $t, $this->editUrlOptions() );
1541                 }
1542                 return $s;
1543         }
1544
1545         /**
1546          * Return URL options for the 'edit page' link.
1547          * This may include an 'oldid' specifier, if the current page view is such.
1548          *
1549          * @return string
1550          * @private
1551          */
1552         function editUrlOptions() {
1553                 global $wgArticle;
1554
1555                 if( $this->mRevisionId && ! $wgArticle->isCurrent() ) {
1556                         return 'action=edit&oldid=' . intval( $this->mRevisionId );
1557                 } else {
1558                         return 'action=edit';
1559                 }
1560         }
1561
1562         function deleteThisPage() {
1563                 global $wgUser, $wgRequest;
1564
1565                 $diff = $wgRequest->getVal( 'diff' );
1566                 if ( $this->mTitle->getArticleId() && ( !$diff ) && $wgUser->isAllowed( 'delete' ) ) {
1567                         $t = wfMsg( 'deletethispage' );
1568
1569                         $s = $this->makeKnownLinkObj( $this->mTitle, $t, 'action=delete' );
1570                 } else {
1571                         $s = '';
1572                 }
1573                 return $s;
1574         }
1575
1576         function protectThisPage() {
1577                 global $wgUser, $wgRequest;
1578
1579                 $diff = $wgRequest->getVal( 'diff' );
1580                 if ( $this->mTitle->getArticleId() && ( ! $diff ) && $wgUser->isAllowed('protect') ) {
1581                         if ( $this->mTitle->isProtected() ) {
1582                                 $t = wfMsg( 'unprotectthispage' );
1583                                 $q = 'action=unprotect';
1584                         } else {
1585                                 $t = wfMsg( 'protectthispage' );
1586                                 $q = 'action=protect';
1587                         }
1588                         $s = $this->makeKnownLinkObj( $this->mTitle, $t, $q );
1589                 } else {
1590                         $s = '';
1591                 }
1592                 return $s;
1593         }
1594
1595         function watchThisPage() {
1596                 global $wgOut;
1597                 ++$this->mWatchLinkNum;
1598
1599                 if ( $wgOut->isArticleRelated() ) {
1600                         if ( $this->mTitle->userIsWatching() ) {
1601                                 $t = wfMsg( 'unwatchthispage' );
1602                                 $q = 'action=unwatch';
1603                                 $id = 'mw-unwatch-link' . $this->mWatchLinkNum;
1604                         } else {
1605                                 $t = wfMsg( 'watchthispage' );
1606                                 $q = 'action=watch';
1607                                 $id = 'mw-watch-link' . $this->mWatchLinkNum;
1608                         }
1609                         $s = $this->makeKnownLinkObj( $this->mTitle, $t, $q, '', '', " id=\"$id\"" );
1610                 } else {
1611                         $s = wfMsg( 'notanarticle' );
1612                 }
1613                 return $s;
1614         }
1615
1616         function moveThisPage() {
1617                 if ( $this->mTitle->quickUserCan( 'move' ) ) {
1618                         return $this->makeKnownLinkObj( SpecialPage::getTitleFor( 'Movepage' ),
1619                           wfMsg( 'movethispage' ), 'target=' . $this->mTitle->getPrefixedURL() );
1620                 } else {
1621                         // no message if page is protected - would be redundant
1622                         return '';
1623                 }
1624         }
1625
1626         function historyLink() {
1627                 return $this->link( $this->mTitle, wfMsg( 'history' ),
1628                         array( 'rel' => 'archives' ), array( 'action' => 'history' ) );
1629         }
1630
1631         function whatLinksHere() {
1632                 return $this->makeKnownLinkObj(
1633                         SpecialPage::getTitleFor( 'Whatlinkshere', $this->mTitle->getPrefixedDBkey() ),
1634                         wfMsg( 'whatlinkshere' ) );
1635         }
1636
1637         function userContribsLink() {
1638                 return $this->makeKnownLinkObj(
1639                         SpecialPage::getTitleFor( 'Contributions', $this->mTitle->getDBkey() ),
1640                         wfMsg( 'contributions' ) );
1641         }
1642
1643         function showEmailUser( $id ) {
1644                 global $wgUser;
1645                 $targetUser = User::newFromId( $id );
1646                 return  $wgUser->canSendEmail() && # the sending user must have a confirmed email address
1647                         $targetUser->canReceiveEmail(); # the target user must have a confirmed email address and allow emails from users
1648         }
1649
1650         function emailUserLink() {
1651                 return $this->makeKnownLinkObj(
1652                         SpecialPage::getTitleFor( 'Emailuser', $this->mTitle->getDBkey() ),
1653                         wfMsg( 'emailuser' ) );
1654         }
1655
1656         function watchPageLinksLink() {
1657                 global $wgOut;
1658                 if ( ! $wgOut->isArticleRelated() ) {
1659                         return '(' . wfMsg( 'notanarticle' ) . ')';
1660                 } else {
1661                         return $this->makeKnownLinkObj(
1662                                 SpecialPage::getTitleFor( 'Recentchangeslinked', $this->mTitle->getPrefixedDBkey() ),
1663                                 wfMsg( 'recentchangeslinked' ) );
1664                 }
1665         }
1666
1667         function trackbackLink() {
1668                 return '<a href="' . $this->mTitle->trackbackURL() . '">'
1669                         . wfMsg( 'trackbacklink' ) . '</a>';
1670         }
1671
1672         function otherLanguages() {
1673                 global $wgOut, $wgContLang, $wgHideInterlanguageLinks;
1674
1675                 if ( $wgHideInterlanguageLinks ) {
1676                         return '';
1677                 }
1678
1679                 $a = $wgOut->getLanguageLinks();
1680                 if ( 0 == count( $a ) ) {
1681                         return '';
1682                 }
1683
1684                 $s = wfMsg( 'otherlanguages' ) . wfMsg( 'colon-separator' );
1685                 $first = true;
1686                 if( $wgContLang->isRTL() ) $s .= '<span dir="LTR">';
1687                 foreach( $a as $l ) {
1688                         if ( !$first ) {
1689                                 $s .= wfMsgExt( 'pipe-separator', 'escapenoentities' );
1690                         }
1691                         $first = false;
1692
1693                         $nt = Title::newFromText( $l );
1694                         $url = $nt->escapeFullURL();
1695                         $text = $wgContLang->getLanguageName( $nt->getInterwiki() );
1696
1697                         if ( '' == $text ) { $text = $l; }
1698                         $style = $this->getExternalLinkAttributes( $l, $text );
1699                         $s .= "<a href=\"{$url}\"{$style}>{$text}</a>";
1700                 }
1701                 if( $wgContLang->isRTL() ) $s .= '</span>';
1702                 return $s;
1703         }
1704
1705         function talkLink() {
1706                 if ( NS_SPECIAL == $this->mTitle->getNamespace() ) {
1707                         # No discussion links for special pages
1708                         return '';
1709                 }
1710
1711                 $linkOptions = array();
1712
1713                 if( $this->mTitle->isTalkPage() ) {
1714                         $link = $this->mTitle->getSubjectPage();
1715                         switch( $link->getNamespace() ) {
1716                                 case NS_MAIN:
1717                                         $text = wfMsg( 'articlepage' );
1718                                         break;
1719                                 case NS_USER:
1720                                         $text = wfMsg( 'userpage' );
1721                                         break;
1722                                 case NS_PROJECT:
1723                                         $text = wfMsg( 'projectpage' );
1724                                         break;
1725                                 case NS_FILE:
1726                                         $text = wfMsg( 'imagepage' );
1727                                         # Make link known if image exists, even if the desc. page doesn't.
1728                                         if( wfFindFile( $link ) )
1729                                                 $linkOptions[] = 'known';
1730                                         break;
1731                                 case NS_MEDIAWIKI:
1732                                         $text = wfMsg( 'mediawikipage' );
1733                                         break;
1734                                 case NS_TEMPLATE:
1735                                         $text = wfMsg( 'templatepage' );
1736                                         break;
1737                                 case NS_HELP:
1738                                         $text = wfMsg( 'viewhelppage' );
1739                                         break;
1740                                 case NS_CATEGORY:
1741                                         $text = wfMsg( 'categorypage' );
1742                                         break;
1743                                 default:
1744                                         $text = wfMsg( 'articlepage' );
1745                         }
1746                 } else {
1747                         $link = $this->mTitle->getTalkPage();
1748                         $text = wfMsg( 'talkpage' );
1749                 }
1750
1751                 $s = $this->link( $link, $text, array(), array(), $linkOptions );
1752
1753                 return $s;
1754         }
1755
1756         function commentLink() {
1757                 global $wgOut;
1758
1759                 if ( $this->mTitle->getNamespace() == NS_SPECIAL ) {
1760                         return '';
1761                 }
1762
1763                 # __NEWSECTIONLINK___ changes behaviour here
1764                 # If it's present, the link points to this page, otherwise
1765                 # it points to the talk page
1766                 if( $this->mTitle->isTalkPage() ) {
1767                         $title = $this->mTitle;
1768                 } elseif( $wgOut->showNewSectionLink() ) {
1769                         $title = $this->mTitle;
1770                 } else {
1771                         $title = $this->mTitle->getTalkPage();
1772                 }
1773
1774                 return $this->makeKnownLinkObj( $title, wfMsg( 'postcomment' ), 'action=edit&section=new' );
1775         }
1776
1777         /* these are used extensively in SkinTemplate, but also some other places */
1778         static function makeMainPageUrl( $urlaction = '' ) {
1779                 $title = Title::newMainPage();
1780                 self::checkTitle( $title, '' );
1781                 return $title->getLocalURL( $urlaction );
1782         }
1783
1784         static function makeSpecialUrl( $name, $urlaction = '' ) {
1785                 $title = SpecialPage::getTitleFor( $name );
1786                 return $title->getLocalURL( $urlaction );
1787         }
1788
1789         static function makeSpecialUrlSubpage( $name, $subpage, $urlaction = '' ) {
1790                 $title = SpecialPage::getSafeTitleFor( $name, $subpage );
1791                 return $title->getLocalURL( $urlaction );
1792         }
1793
1794         static function makeI18nUrl( $name, $urlaction = '' ) {
1795                 $title = Title::newFromText( wfMsgForContent( $name ) );
1796                 self::checkTitle( $title, $name );
1797                 return $title->getLocalURL( $urlaction );
1798         }
1799
1800         static function makeUrl( $name, $urlaction = '' ) {
1801                 $title = Title::newFromText( $name );
1802                 self::checkTitle( $title, $name );
1803                 return $title->getLocalURL( $urlaction );
1804         }
1805
1806         # If url string starts with http, consider as external URL, else
1807         # internal
1808         static function makeInternalOrExternalUrl( $name ) {
1809                 if ( preg_match( '/^(?:' . wfUrlProtocols() . ')/', $name ) ) {
1810                         return $name;
1811                 } else {
1812                         return self::makeUrl( $name );
1813                 }
1814         }
1815
1816         # this can be passed the NS number as defined in Language.php
1817         static function makeNSUrl( $name, $urlaction = '', $namespace = NS_MAIN ) {
1818                 $title = Title::makeTitleSafe( $namespace, $name );
1819                 self::checkTitle( $title, $name );
1820                 return $title->getLocalURL( $urlaction );
1821         }
1822
1823         /* these return an array with the 'href' and boolean 'exists' */
1824         static function makeUrlDetails( $name, $urlaction = '' ) {
1825                 $title = Title::newFromText( $name );
1826                 self::checkTitle( $title, $name );
1827                 return array(
1828                         'href' => $title->getLocalURL( $urlaction ),
1829                         'exists' => $title->getArticleID() != 0 ? true : false
1830                 );
1831         }
1832
1833         /**
1834          * Make URL details where the article exists (or at least it's convenient to think so)
1835          */
1836         static function makeKnownUrlDetails( $name, $urlaction = '' ) {
1837                 $title = Title::newFromText( $name );
1838                 self::checkTitle( $title, $name );
1839                 return array(
1840                         'href' => $title->getLocalURL( $urlaction ),
1841                         'exists' => true
1842                 );
1843         }
1844
1845         # make sure we have some title to operate on
1846         static function checkTitle( &$title, $name ) {
1847                 if( !is_object( $title ) ) {
1848                         $title = Title::newFromText( $name );
1849                         if( !is_object( $title ) ) {
1850                                 $title = Title::newFromText( '--error: link target missing--' );
1851                         }
1852                 }
1853         }
1854
1855         /**
1856          * Build an array that represents the sidebar(s), the navigation bar among them
1857          *
1858          * @return array
1859          */
1860         function buildSidebar() {
1861                 global $parserMemc, $wgEnableSidebarCache, $wgSidebarCacheExpiry;
1862                 global $wgLang;
1863                 wfProfileIn( __METHOD__ );
1864
1865                 $key = wfMemcKey( 'sidebar', $wgLang->getCode() );
1866
1867                 if ( $wgEnableSidebarCache ) {
1868                         $cachedsidebar = $parserMemc->get( $key );
1869                         if ( $cachedsidebar ) {
1870                                 wfProfileOut( __METHOD__ );
1871                                 return $cachedsidebar;
1872                         }
1873                 }
1874
1875                 $bar = array();
1876                 $lines = explode( "\n", wfMsgForContent( 'sidebar' ) );
1877                 $heading = '';
1878                 foreach( $lines as $line ) {
1879                         if( strpos( $line, '*' ) !== 0 )
1880                                 continue;
1881                         if( strpos( $line, '**') !== 0 ) {
1882                                 $heading = trim( $line, '* ' );
1883                                 if( !array_key_exists( $heading, $bar ) ) $bar[$heading] = array();
1884                         } else {
1885                                 if( strpos( $line, '|' ) !== false ) { // sanity check
1886                                         $line = array_map( 'trim', explode( '|', trim( $line, '* ' ), 2 ) );
1887                                         $link = wfMsgForContent( $line[0] );
1888                                         if( $link == '-' )
1889                                                 continue;
1890
1891                                         $text = wfMsgExt( $line[1], 'parsemag' );
1892                                         if( wfEmptyMsg( $line[1], $text ) )
1893                                                 $text = $line[1];
1894                                         if( wfEmptyMsg( $line[0], $link ) )
1895                                                 $link = $line[0];
1896
1897                                         if ( preg_match( '/^(?:' . wfUrlProtocols() . ')/', $link ) ) {
1898                                                 $href = $link;
1899                                         } else {
1900                                                 $title = Title::newFromText( $link );
1901                                                 if ( $title ) {
1902                                                         $title = $title->fixSpecialName();
1903                                                         $href = $title->getLocalURL();
1904                                                 } else {
1905                                                         $href = 'INVALID-TITLE';
1906                                                 }
1907                                         }
1908
1909                                         $bar[$heading][] = array(
1910                                                 'text' => $text,
1911                                                 'href' => $href,
1912                                                 'id' => 'n-' . strtr( $line[1], ' ', '-' ),
1913                                                 'active' => false
1914                                         );
1915                                 } else { continue; }
1916                         }
1917                 }
1918                 wfRunHooks( 'SkinBuildSidebar', array( $this, &$bar ) );
1919                 if ( $wgEnableSidebarCache ) $parserMemc->set( $key, $bar, $wgSidebarCacheExpiry );
1920                 wfProfileOut( __METHOD__ );
1921                 return $bar;
1922         }
1923 }