includes/Skin.php

   1 <?php
   2 /**
   3  * @defgroup Skins Skins
   4  */
   5
   6 if ( !defined( 'MEDIAWIKI' ) ) {
   7         die( 1 );
   8 }
   9
  10 /**
  11  * The main skin class that provide methods and properties for all other skins.
  12  * This base class is also the "Standard" skin.
  13  *
  14  * See docs/skin.txt for more information.
  15  *
  16  * @ingroup Skins
  17  */
  18 class Skin extends Linker {
  19         /**#@+
  20          * @private
  21          */
  22         var $mWatchLinkNum = 0; // Appended to end of watch link id's
  23         // How many search boxes have we made?  Avoid duplicate id's.
  24         protected $searchboxes = '';
  25         /**#@-*/
  26         protected $mRevisionId; // The revision ID we're looking at, null if not applicable.
  27         protected $skinname = 'standard';
  28         // @todo Fixme: should be protected :-\
  29         var $mTitle = null;
  30
  31         /** Constructor, call parent constructor */
  32         function __construct() {
  33                 parent::__construct();
  34         }
  35
  36         /**
  37          * Fetch the set of available skins.
  38          * @return array of strings
  39          */
  40         static function getSkinNames() {
  41                 global $wgValidSkinNames;
  42                 static $skinsInitialised = false;
  43
  44                 if ( !$skinsInitialised ) {
  45                         # Get a list of available skins
  46                         # Build using the regular expression '^(.*).php$'
  47                         # Array keys are all lower case, array value keep the case used by filename
  48                         #
  49                         wfProfileIn( __METHOD__ . '-init' );
  50
  51                         global $wgStyleDirectory;
  52
  53                         $skinDir = dir( $wgStyleDirectory );
  54
  55                         # while code from www.php.net
  56                         while ( false !== ( $file = $skinDir->read() ) ) {
  57                                 // Skip non-PHP files, hidden files, and '.dep' includes
  58                                 $matches = array();
  59
  60                                 if ( preg_match( '/^([^.]*)\.php$/', $file, $matches ) ) {
  61                                         $aSkin = $matches[1];
  62                                         $wgValidSkinNames[strtolower( $aSkin )] = $aSkin;
  63                                 }
  64                         }
  65                         $skinDir->close();
  66                         $skinsInitialised = true;
  67                         wfProfileOut( __METHOD__ . '-init' );
  68                 }
  69                 return $wgValidSkinNames;
  70         }
  71
  72         /**
  73          * Fetch the list of usable skins in regards to $wgSkipSkins.
  74          * Useful for Special:Preferences and other places where you
  75          * only want to show skins users _can_ use.
  76          * @return array of strings
  77          */
  78         public static function getUsableSkins() {
  79                 global $wgSkipSkins;
  80
  81                 $usableSkins = self::getSkinNames();
  82
  83                 foreach ( $wgSkipSkins as $skip ) {
  84                         unset( $usableSkins[$skip] );
  85                 }
  86
  87                 return $usableSkins;
  88         }
  89
  90         /**
  91          * Normalize a skin preference value to a form that can be loaded.
  92          * If a skin can't be found, it will fall back to the configured
  93          * default (or the old 'Classic' skin if that's broken).
  94          * @param $key String: 'monobook', 'standard', etc.
  95          * @return string
  96          */
  97         static function normalizeKey( $key ) {
  98                 global $wgDefaultSkin;
  99
 100                 $skinNames = Skin::getSkinNames();
 101
 102                 if ( $key == '' ) {
 103                         // Don't return the default immediately;
 104                         // in a misconfiguration we need to fall back.
 105                         $key = $wgDefaultSkin;
 106                 }
 107
 108                 if ( isset( $skinNames[$key] ) ) {
 109                         return $key;
 110                 }
 111
 112                 // Older versions of the software used a numeric setting
 113                 // in the user preferences.
 114                 $fallback = array(
 115                         0 => $wgDefaultSkin,
 116                         1 => 'nostalgia',
 117                         2 => 'cologneblue'
 118                 );
 119
 120                 if ( isset( $fallback[$key] ) ) {
 121                         $key = $fallback[$key];
 122                 }
 123
 124                 if ( isset( $skinNames[$key] ) ) {
 125                         return $key;
 126                 } else if ( isset( $skinNames[$wgDefaultSkin] ) ) {
 127                         return $wgDefaultSkin;
 128                 } else {
 129                         return 'vector';
 130                 }
 131         }
 132
 133         /**
 134          * Factory method for loading a skin of a given type
 135          * @param $key String: 'monobook', 'standard', etc.
 136          * @return Skin
 137          */
 138         static function &newFromKey( $key ) {
 139                 global $wgStyleDirectory;
 140
 141                 $key = Skin::normalizeKey( $key );
 142
 143                 $skinNames = Skin::getSkinNames();
 144                 $skinName = $skinNames[$key];
 145                 $className = 'Skin' . ucfirst( $key );
 146
 147                 # Grab the skin class and initialise it.
 148                 if ( !class_exists( $className ) ) {
 149                         // Preload base classes to work around APC/PHP5 bug
 150                         $deps = "{$wgStyleDirectory}/{$skinName}.deps.php";
 151
 152                         if ( file_exists( $deps ) ) {
 153                                 include_once( $deps );
 154                         }
 155                         require_once( "{$wgStyleDirectory}/{$skinName}.php" );
 156
 157                         # Check if we got if not failback to default skin
 158                         if ( !class_exists( $className ) ) {
 159                                 # DO NOT die if the class isn't found. This breaks maintenance
 160                                 # scripts and can cause a user account to be unrecoverable
 161                                 # except by SQL manipulation if a previously valid skin name
 162                                 # is no longer valid.
 163                                 wfDebug( "Skin class does not exist: $className\n" );
 164                                 $className = 'SkinVector';
 165                                 require_once( "{$wgStyleDirectory}/Vector.php" );
 166                         }
 167                 }
 168                 $skin = new $className;
 169                 return $skin;
 170         }
 171
 172         /** @return string path to the skin stylesheet */
 173         function getStylesheet() {
 174                 return 'common/wikistandard.css';
 175         }
 176
 177         /** @return string skin name */
 178         public function getSkinName() {
 179                 return $this->skinname;
 180         }
 181
 182         function qbSetting() {
 183                 global $wgOut, $wgUser;
 184
 185                 if ( $wgOut->isQuickbarSuppressed() ) {
 186                         return 0;
 187                 }
 188
 189                 $q = $wgUser->getOption( 'quickbar', 0 );
 190
 191                 return $q;
 192         }
 193
 194         function initPage( OutputPage $out ) {
 195                 global $wgFavicon, $wgAppleTouchIcon, $wgEnableAPI;
 196
 197                 wfProfileIn( __METHOD__ );
 198
 199                 # Generally the order of the favicon and apple-touch-icon links
 200                 # should not matter, but Konqueror (3.5.9 at least) incorrectly
 201                 # uses whichever one appears later in the HTML source. Make sure
 202                 # apple-touch-icon is specified first to avoid this.
 203                 if ( false !== $wgAppleTouchIcon ) {
 204                         $out->addLink( array( 'rel' => 'apple-touch-icon', 'href' => $wgAppleTouchIcon ) );
 205                 }
 206
 207                 if ( false !== $wgFavicon ) {
 208                         $out->addLink( array( 'rel' => 'shortcut icon', 'href' => $wgFavicon ) );
 209                 }
 210
 211                 # OpenSearch description link
 212                 $out->addLink( array(
 213                         'rel' => 'search',
 214                         'type' => 'application/opensearchdescription+xml',
 215                         'href' => wfScript( 'opensearch_desc' ),
 216                         'title' => wfMsgForContent( 'opensearch-desc' ),
 217                 ) );
 218
 219                 if ( $wgEnableAPI ) {
 220                         # Real Simple Discovery link, provides auto-discovery information
 221                         # for the MediaWiki API (and potentially additional custom API
 222                         # support such as WordPress or Twitter-compatible APIs for a
 223                         # blogging extension, etc)
 224                         $out->addLink( array(
 225                                 'rel' => 'EditURI',
 226                                 'type' => 'application/rsd+xml',
 227                                 'href' => wfExpandUrl( wfAppendQuery( wfScript( 'api' ), array( 'action' => 'rsd' ) ) ),
 228                         ) );
 229                 }
 230
 231                 $this->addMetadataLinks( $out );
 232
 233                 $this->mRevisionId = $out->mRevisionId;
 234
 235                 $this->preloadExistence();
 236
 237                 wfProfileOut( __METHOD__ );
 238         }
 239
 240         /**
 241          * Preload the existence of three commonly-requested pages in a single query
 242          */
 243         function preloadExistence() {
 244                 global $wgUser;
 245
 246                 // User/talk link
 247                 $titles = array( $wgUser->getUserPage(), $wgUser->getTalkPage() );
 248
 249                 // Other tab link
 250                 if ( $this->mTitle->getNamespace() == NS_SPECIAL ) {
 251                         // nothing
 252                 } elseif ( $this->mTitle->isTalkPage() ) {
 253                         $titles[] = $this->mTitle->getSubjectPage();
 254                 } else {
 255                         $titles[] = $this->mTitle->getTalkPage();
 256                 }
 257
 258                 $lb = new LinkBatch( $titles );
 259                 $lb->setCaller( __METHOD__ );
 260                 $lb->execute();
 261         }
 262
 263         /**
 264          * Adds metadata links below to the HTML output.
 265          * <ol>
 266          *  <li>Creative Commons
 267          *   <br />See http://wiki.creativecommons.org/Extend_Metadata.
 268          *  </li>
 269          *  <li>Dublin Core</li>
 270          *  <li>Use hreflang to specify canonical and alternate links
 271          *   <br />See http://www.google.com/support/webmasters/bin/answer.py?answer=189077
 272          *  </li>
 273          *  <li>Copyright</li>
 274          * <ol>
 275          *
 276          * @param $out Object: instance of OutputPage
 277          */
 278         function addMetadataLinks( OutputPage $out ) {
 279                 global $wgEnableDublinCoreRdf, $wgEnableCreativeCommonsRdf;
 280                 global $wgDisableLangConversion, $wgCanonicalLanguageLinks, $wgContLang;
 281                 global $wgRightsPage, $wgRightsUrl;
 282
 283                 if ( $out->isArticleRelated() ) {
 284                         # note: buggy CC software only reads first "meta" link
 285                         if ( $wgEnableCreativeCommonsRdf ) {
 286                                 $out->addMetadataLink( array(
 287                                         'title' => 'Creative Commons',
 288                                         'type' => 'application/rdf+xml',
 289                                         'href' => $this->mTitle->getLocalURL( 'action=creativecommons' ) )
 290                                 );
 291                         }
 292
 293                         if ( $wgEnableDublinCoreRdf ) {
 294                                 $out->addMetadataLink( array(
 295                                         'title' => 'Dublin Core',
 296                                         'type' => 'application/rdf+xml',
 297                                         'href' => $this->mTitle->getLocalURL( 'action=dublincore' ) )
 298                                 );
 299                         }
 300                 }
 301
 302                 if ( !$wgDisableLangConversion && $wgCanonicalLanguageLinks
 303                         && $wgContLang->hasVariants() ) {
 304
 305                         $urlvar = $wgContLang->getURLVariant();
 306
 307                         if ( !$urlvar ) {
 308                                 $variants = $wgContLang->getVariants();
 309                                 foreach ( $variants as $_v ) {
 310                                         $out->addLink( array(
 311                                                 'rel' => 'alternate',
 312                                                 'hreflang' => $_v,
 313                                                 'href' => $this->mTitle->getLocalURL( '', $_v ) )
 314                                         );
 315                                 }
 316                         } else {
 317                                 $out->addLink( array(
 318                                         'rel' => 'canonical',
 319                                         'href' => $this->mTitle->getFullURL() )
 320                                 );
 321                         }
 322                 }
 323
 324                 $copyright = '';
 325                 if ( $wgRightsPage ) {
 326                         $copy = Title::newFromText( $wgRightsPage );
 327
 328                         if ( $copy ) {
 329                                 $copyright = $copy->getLocalURL();
 330                         }
 331                 }
 332
 333                 if ( !$copyright && $wgRightsUrl ) {
 334                         $copyright = $wgRightsUrl;
 335                 }
 336
 337                 if ( $copyright ) {
 338                         $out->addLink( array(
 339                                 'rel' => 'copyright',
 340                                 'href' => $copyright )
 341                         );
 342                 }
 343         }
 344
 345         /**
 346          * Set some local variables
 347          */
 348         protected function setMembers() {
 349                 global $wgUser;
 350                 $this->mUser = $wgUser;
 351                 $this->userpage = $wgUser->getUserPage()->getPrefixedText();
 352                 $this->usercss = false;
 353         }
 354
 355         /**
 356          * Set the title
 357          * @param $t Title object to use
 358          */
 359         public function setTitle( $t ) {
 360                 $this->mTitle = $t;
 361         }
 362
 363         /** Get the title */
 364         public function getTitle() {
 365                 return $this->mTitle;
 366         }
 367
 368         /**
 369          * Outputs the HTML generated by other functions.
 370          * @param $out Object: instance of OutputPage
 371          */
 372         function outputPage( OutputPage $out ) {
 373                 global $wgDebugComments;
 374                 wfProfileIn( __METHOD__ );
 375
 376                 $this->setMembers();
 377                 $this->initPage( $out );
 378
 379                 // See self::afterContentHook() for documentation
 380                 $afterContent = $this->afterContentHook();
 381
 382                 $out->out( $out->headElement( $this ) );
 383
 384                 if ( $wgDebugComments ) {
 385                         $out->out( "<!-- Wiki debugging output:\n" .
 386                           $out->mDebugtext . "-->\n" );
 387                 }
 388
 389                 $out->out( $this->beforeContent() );
 390
 391                 $out->out( $out->mBodytext . "\n" );
 392
 393                 $out->out( $this->afterContent() );
 394
 395                 $out->out( $afterContent );
 396
 397                 $out->out( $this->bottomScripts( $out ) );
 398
 399                 $out->out( wfReportTime() );
 400
 401                 $out->out( "\n</body></html>" );
 402                 wfProfileOut( __METHOD__ );
 403         }
 404
 405         static function makeVariablesScript( $data ) {
 406                 if ( $data ) {
 407                         return Html::inlineScript(
 408                                 ResourceLoader::makeLoaderConditionalScript( ResourceLoader::makeConfigSetScript( $data ) )
 409                         );
 410                 } else {
 411                         return '';
 412                 }
 413         }
 414
 415         /**
 416          * Make a <script> tag containing global variables
 417          * @param $skinName string Name of the skin
 418          * The odd calling convention is for backwards compatibility
 419          * @todo FIXME: Make this not depend on $wgTitle!
 420          *
 421          * Do not add things here which can be evaluated in ResourceLoaderStartupScript - in other words, without state.
 422          * You will only be adding bloat to the page and causing page caches to have to be purged on configuration changes.
 423          */
 424         static function makeGlobalVariablesScript( $skinName ) {
 425                 global $wgTitle, $wgUser, $wgRequest, $wgArticle, $wgOut, $wgRestrictionTypes, $wgUseAjax, $wgEnableMWSuggest;
 426
 427                 $ns = $wgTitle->getNamespace();
 428                 $nsname = MWNamespace::exists( $ns ) ? MWNamespace::getCanonicalName( $ns ) : $wgTitle->getNsText();
 429                 $vars = array(
 430                         'wgCanonicalNamespace' => $nsname,
 431                         'wgCanonicalSpecialPageName' => $ns == NS_SPECIAL ?
 432                                 SpecialPage::resolveAlias( $wgTitle->getDBkey() ) : false, # bug 21115
 433                         'wgNamespaceNumber' => $wgTitle->getNamespace(),
 434                         'wgPageName' => $wgTitle->getPrefixedDBKey(),
 435                         'wgTitle' => $wgTitle->getText(),
 436                         'wgAction' => $wgRequest->getText( 'action', 'view' ),
 437                         'wgArticleId' => $wgTitle->getArticleId(),
 438                         'wgIsArticle' => $wgOut->isArticle(),
 439                         'wgUserName' => $wgUser->isAnon() ? null : $wgUser->getName(),
 440                         'wgUserGroups' => $wgUser->getEffectiveGroups(),
 441                         'wgCurRevisionId' => isset( $wgArticle ) ? $wgArticle->getLatest() : 0,
 442                         'wgCategories' => $wgOut->getCategories(),
 443                 );
 444                 foreach ( $wgRestrictionTypes as $type ) {
 445                         $vars['wgRestriction' . ucfirst( $type )] = $wgTitle->getRestrictions( $type );
 446                 }
 447                 if ( $wgUseAjax && $wgEnableMWSuggest && !$wgUser->getOption( 'disablesuggest', false ) ) {
 448                         $vars['wgSearchNamespaces'] = SearchEngine::userNamespaces( $wgUser );
 449                 }
 450
 451                 // Allow extensions to add their custom variables to the global JS variables
 452                 wfRunHooks( 'MakeGlobalVariablesScript', array( &$vars ) );
 453
 454                 return self::makeVariablesScript( $vars );
 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 $action String: 'edit', 'submit' etc.
 465          * @return bool
 466          */
 467         public function userCanPreview( $action ) {
 468                 global $wgRequest, $wgUser;
 469
 470                 if ( $action != 'submit' ) {
 471                         return false;
 472                 }
 473                 if ( !$wgRequest->wasPosted() ) {
 474                         return false;
 475                 }
 476                 if ( !$this->mTitle->userCanEditCssSubpage() ) {
 477                         return false;
 478                 }
 479                 if ( !$this->mTitle->userCanEditJsSubpage() ) {
 480                         return false;
 481                 }
 482
 483                 return $wgUser->matchEditToken(
 484                         $wgRequest->getVal( 'wpEditToken' ) );
 485         }
 486
 487         /**
 488          * Generated JavaScript action=raw&gen=js
 489          * This returns MediaWiki:Common.js and MediaWiki:[Skinname].js concate-
 490          * nated together.  For some bizarre reason, it does *not* return any
 491          * custom user JS from subpages.  Huh?
 492          *
 493          * There's absolutely no reason to have separate Monobook/Common JSes.
 494          * Any JS that cares can just check the skin variable generated at the
 495          * top.  For now Monobook.js will be maintained, but it should be consi-
 496          * dered deprecated.
 497          *
 498          * @param $skinName String: If set, overrides the skin name
 499          * @return string
 500          */
 501         public function generateUserJs( $skinName = null ) {
 502
 503                 // Stub - see ResourceLoaderSiteModule, CologneBlue, Simple and Standard skins override this
 504
 505                 return '';
 506         }
 507
 508         /**
 509          * Generate user stylesheet for action=raw&gen=css
 510          */
 511         public function generateUserStylesheet() {
 512
 513                 // Stub - see ResourceLoaderUserModule, CologneBlue, Simple and Standard skins override this
 514
 515                 return '';
 516         }
 517
 518         /**
 519          * Split for easier subclassing in SkinSimple, SkinStandard and SkinCologneBlue
 520          * Anything in here won't be generated if $wgAllowUserCssPrefs is false.
 521          */
 522         protected function reallyGenerateUserStylesheet() {
 523
 524                 // Stub - see  ResourceLoaderUserModule, CologneBlue, Simple and Standard skins override this
 525
 526                 return '';
 527         }
 528
 529         /**
 530          * @private
 531          */
 532         function setupUserCss( OutputPage $out ) {
 533                 global $wgRequest;
 534                 global $wgUseSiteCss, $wgAllowUserCss, $wgAllowUserCssPrefs, $wgSquidMaxage;
 535
 536                 wfProfileIn( __METHOD__ );
 537
 538                 $this->setupSkinUserCss( $out );
 539
 540                 $siteargs = array(
 541                         'action' => 'raw',
 542                         'maxage' => $wgSquidMaxage,
 543                 );
 544
 545                 // Add any extension CSS
 546                 foreach ( $out->getExtStyle() as $url ) {
 547                         $out->addStyle( $url );
 548                 }
 549
 550                 // Per-site custom styles
 551                 if ( $wgUseSiteCss ) {
 552                         $out->addModuleStyles( 'site' );
 553                 }
 554
 555                 // Per-user custom styles
 556                 if ( $wgAllowUserCss ) {
 557                         if ( $this->mTitle->isCssSubpage() && $this->userCanPreview( $wgRequest->getVal( 'action' ) ) ) {
 558                                 // @FIXME: properly escape the cdata!
 559                                 $out->addInlineStyle( $wgRequest->getText( 'wpTextbox1' ) );
 560                         } else {
 561                                 $out->addModuleStyles( 'user' );
 562                         }
 563                 }
 564
 565                 // Per-user preference styles
 566                 if ( $wgAllowUserCssPrefs ) {
 567                         $out->addModuleStyles( 'user.options' );
 568                 }
 569
 570                 wfProfileOut( __METHOD__ );
 571         }
 572
 573         /**
 574          * Get the query to generate a dynamic stylesheet
 575          *
 576          * @return array
 577          */
 578         public static function getDynamicStylesheetQuery() {
 579                 global $wgSquidMaxage;
 580
 581                 return array(
 582                                 'action' => 'raw',
 583                                 'maxage' => $wgSquidMaxage,
 584                                 'usemsgcache' => 'yes',
 585                                 'ctype' => 'text/css',
 586                                 'smaxage' => $wgSquidMaxage,
 587                         );
 588         }
 589
 590         /**
 591          * Add skin specific stylesheets
 592          * @param $out OutputPage
 593          */
 594         function setupSkinUserCss( OutputPage $out ) {
 595                 $out->addModuleStyles( 'mediawiki.legacy.shared' );
 596                 $out->addModuleStyles( 'mediawiki.legacy.oldshared' );
 597                 // TODO: When converting old skins to use ResourceLoader (or removing them) the following should be reconsidered
 598                 $out->addStyle( $this->getStylesheet() );
 599                 $out->addStyle( 'common/common_rtl.css', '', '', 'rtl' );
 600         }
 601
 602         function getPageClasses( $title ) {
 603                 $numeric = 'ns-' . $title->getNamespace();
 604
 605                 if ( $title->getNamespace() == NS_SPECIAL ) {
 606                         $type = 'ns-special';
 607                 } elseif ( $title->isTalkPage() ) {
 608                         $type = 'ns-talk';
 609                 } else {
 610                         $type = 'ns-subject';
 611                 }
 612
 613                 $name = Sanitizer::escapeClass( 'page-' . $title->getPrefixedText() );
 614
 615                 return "$numeric $type $name";
 616         }
 617
 618         /**
 619          * This will be called by OutputPage::headElement when it is creating the
 620          * <body> tag, skins can override it if they have a need to add in any
 621          * body attributes or classes of their own.
 622          */
 623         function addToBodyAttributes( $out, &$bodyAttrs ) {
 624                 // does nothing by default
 625         }
 626
 627         /**
 628          * URL to the logo
 629          */
 630         function getLogo() {
 631                 global $wgLogo;
 632                 return $wgLogo;
 633         }
 634
 635         /**
 636          * This will be called immediately after the <body> tag.  Split into
 637          * two functions to make it easier to subclass.
 638          */
 639         function beforeContent() {
 640                 return $this->doBeforeContent();
 641         }
 642
 643         function doBeforeContent() {
 644                 global $wgContLang;
 645                 wfProfileIn( __METHOD__ );
 646
 647                 $s = '';
 648                 $qb = $this->qbSetting();
 649
 650                 $langlinks = $this->otherLanguages();
 651                 if ( $langlinks ) {
 652                         $rows = 2;
 653                         $borderhack = '';
 654                 } else {
 655                         $rows = 1;
 656                         $langlinks = false;
 657                         $borderhack = 'class="top"';
 658                 }
 659
 660                 $s .= "\n<div id='content'>\n<div id='topbar'>\n" .
 661                   "<table border='0' cellspacing='0' width='98%'>\n<tr>\n";
 662
 663                 $shove = ( $qb != 0 );
 664                 $left = ( $qb == 1 || $qb == 3 );
 665
 666                 if ( $wgContLang->isRTL() ) {
 667                         $left = !$left;
 668                 }
 669
 670                 if ( !$shove ) {
 671                         $s .= "<td class='top' align='left' valign='top' rowspan='{$rows}'>\n" .
 672                                 $this->logoText() . '</td>';
 673                 } elseif ( $left ) {
 674                         $s .= $this->getQuickbarCompensator( $rows );
 675                 }
 676
 677                 $l = $wgContLang->alignStart();
 678                 $s .= "<td {$borderhack} align='$l' valign='top'>\n";
 679
 680                 $s .= $this->topLinks();
 681                 $s .= '<p class="subtitle">' . $this->pageTitleLinks() . "</p>\n";
 682
 683                 $r = $wgContLang->alignEnd();
 684                 $s .= "</td>\n<td {$borderhack} valign='top' align='$r' nowrap='nowrap'>";
 685                 $s .= $this->nameAndLogin();
 686                 $s .= "\n<br />" . $this->searchForm() . '</td>';
 687
 688                 if ( $langlinks ) {
 689                         $s .= "</tr>\n<tr>\n<td class='top' colspan=\"2\">$langlinks</td>\n";
 690                 }
 691
 692                 if ( $shove && !$left ) { # Right
 693                         $s .= $this->getQuickbarCompensator( $rows );
 694                 }
 695
 696                 $s .= "</tr>\n</table>\n</div>\n";
 697                 $s .= "\n<div id='article'>\n";
 698
 699                 $notice = wfGetSiteNotice();
 700
 701                 if ( $notice ) {
 702                         $s .= "\n<div id='siteNotice'>$notice</div>\n";
 703                 }
 704                 $s .= $this->pageTitle();
 705                 $s .= $this->pageSubtitle();
 706                 $s .= $this->getCategories();
 707
 708                 wfProfileOut( __METHOD__ );
 709                 return $s;
 710         }
 711
 712         function getCategoryLinks() {
 713                 global $wgOut, $wgUseCategoryBrowser;
 714                 global $wgContLang, $wgUser;
 715
 716                 if ( count( $wgOut->mCategoryLinks ) == 0 ) {
 717                         return '';
 718                 }
 719
 720                 # Separator
 721                 $sep = wfMsgExt( 'catseparator', array( 'parsemag', 'escapenoentities' ) );
 722
 723                 // Use Unicode bidi embedding override characters,
 724                 // to make sure links don't smash each other up in ugly ways.
 725                 $dir = $wgContLang->getDir();
 726                 $embed = "<span dir='$dir'>";
 727                 $pop = '</span>';
 728
 729                 $allCats = $wgOut->getCategoryLinks();
 730                 $s = '';
 731                 $colon = wfMsgExt( 'colon-separator', 'escapenoentities' );
 732
 733                 if ( !empty( $allCats['normal'] ) ) {
 734                         $t = $embed . implode( "{$pop} {$sep} {$embed}" , $allCats['normal'] ) . $pop;
 735
 736                         $msg = wfMsgExt( 'pagecategories', array( 'parsemag', 'escapenoentities' ), count( $allCats['normal'] ) );
 737                         $s .= '<div id="mw-normal-catlinks">' .
 738                                 $this->link( Title::newFromText( wfMsgForContent( 'pagecategorieslink' ) ), $msg )
 739                                 . $colon . $t . '</div>';
 740                 }
 741
 742                 # Hidden categories
 743                 if ( isset( $allCats['hidden'] ) ) {
 744                         if ( $wgUser->getBoolOption( 'showhiddencats' ) ) {
 745                                 $class = 'mw-hidden-cats-user-shown';
 746                         } elseif ( $this->mTitle->getNamespace() == NS_CATEGORY ) {
 747                                 $class = 'mw-hidden-cats-ns-shown';
 748                         } else {
 749                                 $class = 'mw-hidden-cats-hidden';
 750                         }
 751
 752                         $s .= "<div id=\"mw-hidden-catlinks\" class=\"$class\">" .
 753                                 wfMsgExt( 'hidden-categories', array( 'parsemag', 'escapenoentities' ), count( $allCats['hidden'] ) ) .
 754                                 $colon . $embed . implode( "$pop $sep $embed", $allCats['hidden'] ) . $pop .
 755                                 '</div>';
 756                 }
 757
 758                 # optional 'dmoz-like' category browser. Will be shown under the list
 759                 # of categories an article belong to
 760                 if ( $wgUseCategoryBrowser ) {
 761                         $s .= '<br /><hr />';
 762
 763                         # get a big array of the parents tree
 764                         $parenttree = $this->mTitle->getParentCategoryTree();
 765                         # Skin object passed by reference cause it can not be
 766                         # accessed under the method subfunction drawCategoryBrowser
 767                         $tempout = explode( "\n", $this->drawCategoryBrowser( $parenttree, $this ) );
 768                         # Clean out bogus first entry and sort them
 769                         unset( $tempout[0] );
 770                         asort( $tempout );
 771                         # Output one per line
 772                         $s .= implode( "<br />\n", $tempout );
 773                 }
 774
 775                 return $s;
 776         }
 777
 778         /**
 779          * Render the array as a serie of links.
 780          * @param $tree Array: categories tree returned by Title::getParentCategoryTree
 781          * @param &skin Object: skin passed by reference
 782          * @return String separated by &gt;, terminate with "\n"
 783          */
 784         function drawCategoryBrowser( $tree, &$skin ) {
 785                 $return = '';
 786
 787                 foreach ( $tree as $element => $parent ) {
 788                         if ( empty( $parent ) ) {
 789                                 # element start a new list
 790                                 $return .= "\n";
 791                         } else {
 792                                 # grab the others elements
 793                                 $return .= $this->drawCategoryBrowser( $parent, $skin ) . ' &gt; ';
 794                         }
 795
 796                         # add our current element to the list
 797                         $eltitle = Title::newFromText( $element );
 798                         $return .=  $skin->link( $eltitle, $eltitle->getText() );
 799                 }
 800
 801                 return $return;
 802         }
 803
 804         function getCategories() {
 805                 $catlinks = $this->getCategoryLinks();
 806
 807                 $classes = 'catlinks';
 808
 809                 global $wgOut, $wgUser;
 810
 811                 // Check what we're showing
 812                 $allCats = $wgOut->getCategoryLinks();
 813                 $showHidden = $wgUser->getBoolOption( 'showhiddencats' ) ||
 814                                                 $this->mTitle->getNamespace() == NS_CATEGORY;
 815
 816                 if ( empty( $allCats['normal'] ) && !( !empty( $allCats['hidden'] ) && $showHidden ) ) {
 817                         $classes .= ' catlinks-allhidden';
 818                 }
 819
 820                 return "<div id='catlinks' class='$classes'>{$catlinks}</div>";
 821         }
 822
 823         function getQuickbarCompensator( $rows = 1 ) {
 824                 return "<td width='152' rowspan='{$rows}'>&#160;</td>";
 825         }
 826
 827         /**
 828          * This runs a hook to allow extensions placing their stuff after content
 829          * and article metadata (e.g. categories).
 830          * Note: This function has nothing to do with afterContent().
 831          *
 832          * This hook is placed here in order to allow using the same hook for all
 833          * skins, both the SkinTemplate based ones and the older ones, which directly
 834          * use this class to get their data.
 835          *
 836          * The output of this function gets processed in SkinTemplate::outputPage() for
 837          * the SkinTemplate based skins, all other skins should directly echo it.
 838          *
 839          * Returns an empty string by default, if not changed by any hook function.
 840          */
 841         protected function afterContentHook() {
 842                 $data = '';
 843
 844                 if ( wfRunHooks( 'SkinAfterContent', array( &$data, $this ) ) ) {
 845                         // adding just some spaces shouldn't toggle the output
 846                         // of the whole <div/>, so we use trim() here
 847                         if ( trim( $data ) != '' ) {
 848                                 // Doing this here instead of in the skins to
 849                                 // ensure that the div has the same ID in all
 850                                 // skins
 851                                 $data = "<div id='mw-data-after-content'>\n" .
 852                                         "\t$data\n" .
 853                                         "</div>\n";
 854                         }
 855                 } else {
 856                         wfDebug( "Hook SkinAfterContent changed output processing.\n" );
 857                 }
 858
 859                 return $data;
 860         }
 861
 862         /**
 863          * Generate debug data HTML for displaying at the bottom of the main content
 864          * area.
 865          * @return String HTML containing debug data, if enabled (otherwise empty).
 866          */
 867         protected function generateDebugHTML() {
 868                 global $wgShowDebug, $wgOut;
 869
 870                 if ( $wgShowDebug ) {
 871                         $listInternals = $this->formatDebugHTML( $wgOut->mDebugtext );
 872                         return "\n<hr />\n<strong>Debug data:</strong><ul style=\"font-family:monospace;\" id=\"mw-debug-html\">" .
 873                                 $listInternals . "</ul>\n";
 874                 }
 875
 876                 return '';
 877         }
 878
 879         private function formatDebugHTML( $debugText ) {
 880                 $lines = explode( "\n", $debugText );
 881                 $curIdent = 0;
 882                 $ret = '<li>';
 883
 884                 foreach ( $lines as $line ) {
 885                         $display = ltrim( $line );
 886                         $ident = strlen( $line ) - strlen( $display );
 887                         $diff = $ident - $curIdent;
 888
 889                         if ( $display == '' ) {
 890                                 $display = "\xc2\xa0";
 891                         }
 892
 893                         if ( !$ident && $diff < 0 && substr( $display, 0, 9 ) != 'Entering ' && substr( $display, 0, 8 ) != 'Exiting ' ) {
 894                                 $ident = $curIdent;
 895                                 $diff = 0;
 896                                 $display = '<span style="background:yellow;">' . htmlspecialchars( $display ) . '</span>';
 897                         } else {
 898                                 $display = htmlspecialchars( $display );
 899                         }
 900
 901                         if ( $diff < 0 ) {
 902                                 $ret .= str_repeat( "</li></ul>\n", -$diff ) . "</li><li>\n";
 903                         } elseif ( $diff == 0 ) {
 904                                 $ret .= "</li><li>\n";
 905                         } else {
 906                                 $ret .= str_repeat( "<ul><li>\n", $diff );
 907                         }
 908                         $ret .= $display . "\n";
 909
 910                         $curIdent = $ident;
 911                 }
 912
 913                 $ret .= str_repeat( '</li></ul>', $curIdent ) . '</li>';
 914
 915                 return $ret;
 916         }
 917
 918         /**
 919          * This gets called shortly before the </body> tag.
 920          * @return String HTML to be put before </body>
 921          */
 922         function afterContent() {
 923                 $printfooter = "<div class=\"printfooter\">\n" . $this->printFooter() . "</div>\n";
 924                 return $printfooter . $this->generateDebugHTML() . $this->doAfterContent();
 925         }
 926
 927         /**
 928          * This gets called shortly before the </body> tag.
 929          * @param $out OutputPage object
 930          * @return String HTML-wrapped JS code to be put before </body>
 931          */
 932         function bottomScripts( $out ) {
 933                 $bottomScriptText = "\n" . $out->getHeadScripts( $this );
 934                 wfRunHooks( 'SkinAfterBottomScripts', array( $this, &$bottomScriptText ) );
 935
 936                 return $bottomScriptText;
 937         }
 938
 939         /** @return string Retrievied from HTML text */
 940         function printSource() {
 941                 $url = htmlspecialchars( $this->mTitle->getFullURL() );
 942                 return wfMsg( 'retrievedfrom', '<a href="' . $url . '">' . $url . '</a>' );
 943         }
 944
 945         function printFooter() {
 946                 return "<p>" .  $this->printSource() .
 947                         "</p>\n\n<p>" . $this->pageStats() . "</p>\n";
 948         }
 949
 950         /** overloaded by derived classes */
 951         function doAfterContent() {
 952                 return '</div></div>';
 953         }
 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
 965                 if ( $disclaimer ) {
 966                         $s[] = $disclaimer;
 967                 }
 968
 969                 $privacy = $this->privacyLink(); # may be empty too
 970
 971                 if ( $privacy ) {
 972                         $s[] = $privacy;
 973                 }
 974
 975                 if ( $wgOut->isArticleRelated() ) {
 976                         if ( $this->mTitle->getNamespace() == NS_FILE ) {
 977                                 $name = $this->mTitle->getDBkey();
 978                                 $image = wfFindFile( $this->mTitle );
 979
 980                                 if ( $image ) {
 981                                         $link = htmlspecialchars( $image->getURL() );
 982                                         $style = $this->getInternalLinkAttributes( $link, $name );
 983                                         $s[] = "<a href=\"{$link}\"{$style}>{$name}</a>";
 984                                 }
 985                         }
 986                 }
 987
 988                 if ( 'history' == $action || isset( $diff ) || isset( $oldid ) ) {
 989                         $s[] .= $this->link(
 990                                         $this->mTitle,
 991                                         wfMsg( 'currentrev' ),
 992                                         array(),
 993                                         array(),
 994                                         array( 'known', 'noclasses' )
 995                         );
 996                 }
 997
 998                 if ( $wgUser->getNewtalk() ) {
 999                         # do not show "You have new messages" text when we are viewing our
1000                         # own talk page
1001                         if ( !$this->mTitle->equals( $wgUser->getTalkPage() ) ) {
1002                                 $tl = $this->link(
1003                                         $wgUser->getTalkPage(),
1004                                         wfMsgHtml( 'newmessageslink' ),
1005                                         array(),
1006                                         array( 'redirect' => 'no' ),
1007                                         array( 'known', 'noclasses' )
1008                                 );
1009
1010                                 $dl = $this->link(
1011                                         $wgUser->getTalkPage(),
1012                                         wfMsgHtml( 'newmessagesdifflink' ),
1013                                         array(),
1014                                         array( 'diff' => 'cur' ),
1015                                         array( 'known', 'noclasses' )
1016                                 );
1017                                 $s[] = '<strong>' . wfMsg( 'youhavenewmessages', $tl, $dl ) . '</strong>';
1018                                 # disable caching
1019                                 $wgOut->setSquidMaxage( 0 );
1020                                 $wgOut->enableClientCache( false );
1021                         }
1022                 }
1023
1024                 $undelete = $this->getUndeleteLink();
1025
1026                 if ( !empty( $undelete ) ) {
1027                         $s[] = $undelete;
1028                 }
1029
1030                 return $wgLang->pipeList( $s );
1031         }
1032
1033         function getUndeleteLink() {
1034                 global $wgUser, $wgLang, $wgRequest;
1035
1036                 $action = $wgRequest->getVal( 'action', 'view' );
1037
1038                 if ( $wgUser->isAllowed( 'deletedhistory' ) &&
1039                         ( $this->mTitle->getArticleId() == 0 || $action == 'history' ) ) {
1040                         $n = $this->mTitle->isDeleted();
1041
1042                         if ( $n ) {
1043                                 if ( $wgUser->isAllowed( 'undelete' ) ) {
1044                                         $msg = 'thisisdeleted';
1045                                 } else {
1046                                         $msg = 'viewdeleted';
1047                                 }
1048
1049                                 return wfMsg(
1050                                         $msg,
1051                                         $this->link(
1052                                                 SpecialPage::getTitleFor( 'Undelete', $this->mTitle->getPrefixedDBkey() ),
1053                                                 wfMsgExt( 'restorelink', array( 'parsemag', 'escape' ), $wgLang->formatNum( $n ) ),
1054                                                 array(),
1055                                                 array(),
1056                                                 array( 'known', 'noclasses' )
1057                                         )
1058                                 );
1059                         }
1060                 }
1061
1062                 return '';
1063         }
1064
1065         function printableLink() {
1066                 global $wgOut, $wgFeedClasses, $wgRequest, $wgLang;
1067
1068                 $s = array();
1069
1070                 if ( !$wgOut->isPrintable() ) {
1071                         $printurl = $wgRequest->escapeAppendQuery( 'printable=yes' );
1072                         $s[] = "<a href=\"$printurl\" rel=\"alternate\">" . wfMsg( 'printableversion' ) . '</a>';
1073                 }
1074
1075                 if ( $wgOut->isSyndicated() ) {
1076                         foreach ( $wgFeedClasses as $format => $class ) {
1077                                 $feedurl = $wgRequest->escapeAppendQuery( "feed=$format" );
1078                                 $s[] = "<a href=\"$feedurl\" rel=\"alternate\" type=\"application/{$format}+xml\""
1079                                                 . " class=\"feedlink\">" . wfMsgHtml( "feed-$format" ) . "</a>";
1080                         }
1081                 }
1082                 return $wgLang->pipeList( $s );
1083         }
1084
1085         /**
1086          * Gets the h1 element with the page title.
1087          * @return string
1088          */
1089         function pageTitle() {
1090                 global $wgOut;
1091                 $s = '<h1 class="pagetitle">' . $wgOut->getPageTitle() . '</h1>';
1092                 return $s;
1093         }
1094
1095         function pageSubtitle() {
1096                 global $wgOut;
1097
1098                 $sub = $wgOut->getSubtitle();
1099
1100                 if ( $sub == '' ) {
1101                         global $wgExtraSubtitle;
1102                         $sub = wfMsgExt( 'tagline', 'parsemag' ) . $wgExtraSubtitle;
1103                 }
1104
1105                 $subpages = $this->subPageSubtitle();
1106                 $sub .= !empty( $subpages ) ? "</p><p class='subpages'>$subpages" : '';
1107                 $s = "<p class='subtitle'>{$sub}</p>\n";
1108
1109                 return $s;
1110         }
1111
1112         function subPageSubtitle() {
1113                 $subpages = '';
1114
1115                 if ( !wfRunHooks( 'SkinSubPageSubtitle', array( &$subpages, $this ) ) ) {
1116                         return $subpages;
1117                 }
1118
1119                 global $wgOut;
1120
1121                 if ( $wgOut->isArticle() && MWNamespace::hasSubpages( $this->mTitle->getNamespace() ) ) {
1122                         $ptext = $this->mTitle->getPrefixedText();
1123                         if ( preg_match( '/\//', $ptext ) ) {
1124                                 $links = explode( '/', $ptext );
1125                                 array_pop( $links );
1126                                 $c = 0;
1127                                 $growinglink = '';
1128                                 $display = '';
1129
1130                                 foreach ( $links as $link ) {
1131                                         $growinglink .= $link;
1132                                         $display .= $link;
1133                                         $linkObj = Title::newFromText( $growinglink );
1134
1135                                         if ( is_object( $linkObj ) && $linkObj->exists() ) {
1136                                                 $getlink = $this->link(
1137                                                         $linkObj,
1138                                                         htmlspecialchars( $display ),
1139                                                         array(),
1140                                                         array(),
1141                                                         array( 'known', 'noclasses' )
1142                                                 );
1143
1144                                                 $c++;
1145
1146                                                 if ( $c > 1 ) {
1147                                                         $subpages .= wfMsgExt( 'pipe-separator', 'escapenoentities' );
1148                                                 } else  {
1149                                                         $subpages .= '&lt; ';
1150                                                 }
1151
1152                                                 $subpages .= $getlink;
1153                                                 $display = '';
1154                                         } else {
1155                                                 $display .= '/';
1156                                         }
1157                                         $growinglink .= '/';
1158                                 }
1159                         }
1160                 }
1161
1162                 return $subpages;
1163         }
1164
1165         /**
1166          * Returns true if the IP should be shown in the header
1167          */
1168         function showIPinHeader() {
1169                 global $wgShowIPinHeader;
1170                 return $wgShowIPinHeader && session_id() != '';
1171         }
1172
1173         function nameAndLogin() {
1174                 global $wgUser, $wgLang, $wgContLang;
1175
1176                 $logoutPage = $wgContLang->specialPage( 'Userlogout' );
1177
1178                 $ret = '';
1179
1180                 if ( $wgUser->isAnon() ) {
1181                         if ( $this->showIPinHeader() ) {
1182                                 $name = wfGetIP();
1183
1184                                 $talkLink = $this->link( $wgUser->getTalkPage(),
1185                                         $wgLang->getNsText( NS_TALK ) );
1186
1187                                 $ret .= "$name ($talkLink)";
1188                         } else {
1189                                 $ret .= wfMsg( 'notloggedin' );
1190                         }
1191
1192                         $returnTo = $this->mTitle->getPrefixedDBkey();
1193                         $query = array();
1194
1195                         if ( $logoutPage != $returnTo ) {
1196                                 $query['returnto'] = $returnTo;
1197                         }
1198
1199                         $loginlink = $wgUser->isAllowed( 'createaccount' )
1200                                 ? 'nav-login-createaccount'
1201                                 : 'login';
1202                         $ret .= "\n<br />" . $this->link(
1203                                 SpecialPage::getTitleFor( 'Userlogin' ),
1204                                 wfMsg( $loginlink ), array(), $query
1205                         );
1206                 } else {
1207                         $returnTo = $this->mTitle->getPrefixedDBkey();
1208                         $talkLink = $this->link( $wgUser->getTalkPage(),
1209                                 $wgLang->getNsText( NS_TALK ) );
1210
1211                         $ret .= $this->link( $wgUser->getUserPage(),
1212                                 htmlspecialchars( $wgUser->getName() ) );
1213                         $ret .= " ($talkLink)<br />";
1214                         $ret .= $wgLang->pipeList( array(
1215                                 $this->link(
1216                                         SpecialPage::getTitleFor( 'Userlogout' ), wfMsg( 'logout' ),
1217                                         array(), array( 'returnto' => $returnTo )
1218                                 ),
1219                                 $this->specialLink( 'Preferences' ),
1220                         ) );
1221                 }
1222
1223                 $ret = $wgLang->pipeList( array(
1224                         $ret,
1225                         $this->link(
1226                                 Title::newFromText( wfMsgForContent( 'helppage' ) ),
1227                                 wfMsg( 'help' )
1228                         ),
1229                 ) );
1230
1231                 return $ret;
1232         }
1233
1234         function getSearchLink() {
1235                 $searchPage = SpecialPage::getTitleFor( 'Search' );
1236                 return $searchPage->getLocalURL();
1237         }
1238
1239         function escapeSearchLink() {
1240                 return htmlspecialchars( $this->getSearchLink() );
1241         }
1242
1243         function searchForm() {
1244                 global $wgRequest, $wgUseTwoButtonsSearchForm;
1245
1246                 $search = $wgRequest->getText( 'search' );
1247
1248                 $s = '<form id="searchform' . $this->searchboxes . '" name="search" class="inline" method="post" action="'
1249                   . $this->escapeSearchLink() . "\">\n"
1250                   . '<input type="text" id="searchInput' . $this->searchboxes . '" name="search" size="19" value="'
1251                   . htmlspecialchars( substr( $search, 0, 256 ) ) . "\" />\n"
1252                   . '<input type="submit" name="go" value="' . wfMsg( 'searcharticle' ) . '" />';
1253
1254                 if ( $wgUseTwoButtonsSearchForm ) {
1255                         $s .= '&#160;<input type="submit" name="fulltext" value="' . wfMsg( 'searchbutton' ) . "\" />\n";
1256                 } else {
1257                         $s .= ' <a href="' . $this->escapeSearchLink() . '" rel="search">' . wfMsg( 'powersearch-legend' ) . "</a>\n";
1258                 }
1259
1260                 $s .= '</form>';
1261
1262                 // Ensure unique id's for search boxes made after the first
1263                 $this->searchboxes = $this->searchboxes == '' ? 2 : $this->searchboxes + 1;
1264
1265                 return $s;
1266         }
1267
1268         function topLinks() {
1269                 global $wgOut;
1270
1271                 $s = array(
1272                         $this->mainPageLink(),
1273                         $this->specialLink( 'Recentchanges' )
1274                 );
1275
1276                 if ( $wgOut->isArticleRelated() ) {
1277                         $s[] = $this->editThisPage();
1278                         $s[] = $this->historyLink();
1279                 }
1280
1281                 # Many people don't like this dropdown box
1282                 # $s[] = $this->specialPagesList();
1283
1284                 if ( $this->variantLinks() ) {
1285                         $s[] = $this->variantLinks();
1286                 }
1287
1288                 if ( $this->extensionTabLinks() ) {
1289                         $s[] = $this->extensionTabLinks();
1290                 }
1291
1292                 // @todo FIXME: Is using Language::pipeList impossible here? Do not quite understand the use of the newline
1293                 return implode( $s, wfMsgExt( 'pipe-separator', 'escapenoentities' ) . "\n" );
1294         }
1295
1296         /**
1297          * Compatibility for extensions adding functionality through tabs.
1298          * Eventually these old skins should be replaced with SkinTemplate-based
1299          * versions, sigh...
1300          * @return string
1301          */
1302         function extensionTabLinks() {
1303                 $tabs = array();
1304                 $out = '';
1305                 $s = array();
1306                 wfRunHooks( 'SkinTemplateTabs', array( $this, &$tabs ) );
1307                 foreach ( $tabs as $tab ) {
1308                         $s[] = Xml::element( 'a',
1309                                 array( 'href' => $tab['href'] ),
1310                                 $tab['text'] );
1311                 }
1312
1313                 if ( count( $s ) ) {
1314                         global $wgLang;
1315
1316                         $out = wfMsgExt( 'pipe-separator' , 'escapenoentities' );
1317                         $out .= $wgLang->pipeList( $s );
1318                 }
1319
1320                 return $out;
1321         }
1322
1323         /**
1324          * Language/charset variant links for classic-style skins
1325          * @return string
1326          */
1327         function variantLinks() {
1328                 $s = '';
1329
1330                 /* show links to different language variants */
1331                 global $wgDisableLangConversion, $wgLang, $wgContLang;
1332
1333                 $variants = $wgContLang->getVariants();
1334
1335                 if ( !$wgDisableLangConversion && sizeof( $variants ) > 1 ) {
1336                         foreach ( $variants as $code ) {
1337                                 $varname = $wgContLang->getVariantname( $code );
1338
1339                                 if ( $varname == 'disable' ) {
1340                                         continue;
1341                                 }
1342                                 $s = $wgLang->pipeList( array(
1343                                         $s,
1344                                         '<a href="' . $this->mTitle->escapeLocalURL( 'variant=' . $code ) . '">' . htmlspecialchars( $varname ) . '</a>'
1345                                 ) );
1346                         }
1347                 }
1348
1349                 return $s;
1350         }
1351
1352         function bottomLinks() {
1353                 global $wgOut, $wgUser, $wgUseTrackbacks;
1354                 $sep = wfMsgExt( 'pipe-separator', 'escapenoentities' ) . "\n";
1355
1356                 $s = '';
1357                 if ( $wgOut->isArticleRelated() ) {
1358                         $element[] = '<strong>' . $this->editThisPage() . '</strong>';
1359
1360                         if ( $wgUser->isLoggedIn() ) {
1361                                 $element[] = $this->watchThisPage();
1362                         }
1363
1364                         $element[] = $this->talkLink();
1365                         $element[] = $this->historyLink();
1366                         $element[] = $this->whatLinksHere();
1367                         $element[] = $this->watchPageLinksLink();
1368
1369                         if ( $wgUseTrackbacks ) {
1370                                 $element[] = $this->trackbackLink();
1371                         }
1372
1373                         if (
1374                                 $this->mTitle->getNamespace() == NS_USER ||
1375                                 $this->mTitle->getNamespace() == NS_USER_TALK
1376                         ) {
1377                                 $id = User::idFromName( $this->mTitle->getText() );
1378                                 $ip = User::isIP( $this->mTitle->getText() );
1379
1380                                 # Both anons and non-anons have contributions list
1381                                 if ( $id || $ip ) {
1382                                         $element[] = $this->userContribsLink();
1383                                 }
1384
1385                                 if ( $this->showEmailUser( $id ) ) {
1386                                         $element[] = $this->emailUserLink();
1387                                 }
1388                         }
1389
1390                         $s = implode( $element, $sep );
1391
1392                         if ( $this->mTitle->getArticleId() ) {
1393                                 $s .= "\n<br />";
1394
1395                                 // Delete/protect/move links for privileged users
1396                                 if ( $wgUser->isAllowed( 'delete' ) ) {
1397                                         $s .= $this->deleteThisPage();
1398                                 }
1399
1400                                 if ( $wgUser->isAllowed( 'protect' ) ) {
1401                                         $s .= $sep . $this->protectThisPage();
1402                                 }
1403
1404                                 if ( $wgUser->isAllowed( 'move' ) ) {
1405                                         $s .= $sep . $this->moveThisPage();
1406                                 }
1407                         }
1408
1409                         $s .= "<br />\n" . $this->otherLanguages();
1410                 }
1411
1412                 return $s;
1413         }
1414
1415         function pageStats() {
1416                 global $wgOut, $wgLang, $wgArticle, $wgRequest, $wgUser;
1417                 global $wgDisableCounters, $wgMaxCredits, $wgShowCreditsIfMax, $wgPageShowWatchingUsers;
1418
1419                 $oldid = $wgRequest->getVal( 'oldid' );
1420                 $diff = $wgRequest->getVal( 'diff' );
1421
1422                 if ( !$wgOut->isArticle() ) {
1423                         return '';
1424                 }
1425
1426                 if ( !$wgArticle instanceof Article ) {
1427                         return '';
1428                 }
1429
1430                 if ( isset( $oldid ) || isset( $diff ) ) {
1431                         return '';
1432                 }
1433
1434                 if ( 0 == $wgArticle->getID() ) {
1435                         return '';
1436                 }
1437
1438                 $s = '';
1439
1440                 if ( !$wgDisableCounters ) {
1441                         $count = $wgLang->formatNum( $wgArticle->getCount() );
1442
1443                         if ( $count ) {
1444                                 $s = wfMsgExt( 'viewcount', array( 'parseinline' ), $count );
1445                         }
1446                 }
1447
1448                 if ( $wgMaxCredits != 0 ) {
1449                         $s .= ' ' . Credits::getCredits( $wgArticle, $wgMaxCredits, $wgShowCreditsIfMax );
1450                 } else {
1451                         $s .= $this->lastModified();
1452                 }
1453
1454                 if ( $wgPageShowWatchingUsers && $wgUser->getOption( 'shownumberswatching' ) ) {
1455                         $dbr = wfGetDB( DB_SLAVE );
1456                         $res = $dbr->select(
1457                                 'watchlist',
1458                                 array( 'COUNT(*) AS n' ),
1459                                 array(
1460                                         'wl_title' => $dbr->strencode( $this->mTitle->getDBkey() ),
1461                                         'wl_namespace' => $this->mTitle->getNamespace()
1462                                 ),
1463                                 __METHOD__
1464                         );
1465                         $x = $dbr->fetchObject( $res );
1466
1467                         $s .= ' ' . wfMsgExt( 'number_of_watching_users_pageview',
1468                                 array( 'parseinline' ), $wgLang->formatNum( $x->n )
1469                         );
1470                 }
1471
1472                 return $s . ' ' .  $this->getCopyright();
1473         }
1474
1475         function getCopyright( $type = 'detect' ) {
1476                 global $wgRightsPage, $wgRightsUrl, $wgRightsText, $wgRequest, $wgArticle;
1477
1478                 if ( $type == 'detect' ) {
1479                         $diff = $wgRequest->getVal( 'diff' );
1480                         $isCur = $wgArticle && $wgArticle->isCurrent();
1481
1482                         if ( is_null( $diff ) && !$isCur && wfMsgForContent( 'history_copyright' ) !== '-' ) {
1483                                 $type = 'history';
1484                         } else {
1485                                 $type = 'normal';
1486                         }
1487                 }
1488
1489                 if ( $type == 'history' ) {
1490                         $msg = 'history_copyright';
1491                 } else {
1492                         $msg = 'copyright';
1493                 }
1494
1495                 $out = '';
1496
1497                 if ( $wgRightsPage ) {
1498                         $title = Title::newFromText( $wgRightsPage );
1499                         $link = $this->linkKnown( $title, $wgRightsText );
1500                 } elseif ( $wgRightsUrl ) {
1501                         $link = $this->makeExternalLink( $wgRightsUrl, $wgRightsText );
1502                 } elseif ( $wgRightsText ) {
1503                         $link = $wgRightsText;
1504                 } else {
1505                         # Give up now
1506                         return $out;
1507                 }
1508
1509                 // Allow for site and per-namespace customization of copyright notice.
1510                 $forContent = true;
1511
1512                 if ( isset( $wgArticle ) ) {
1513                         wfRunHooks( 'SkinCopyrightFooter', array( $wgArticle->getTitle(), $type, &$msg, &$link, &$forContent ) );
1514                 }
1515
1516                 if ( $forContent ) {
1517                         $out .= wfMsgForContent( $msg, $link );
1518                 } else {
1519                         $out .= wfMsg( $msg, $link );
1520                 }
1521
1522                 return $out;
1523         }
1524
1525         function getCopyrightIcon() {
1526                 global $wgRightsUrl, $wgRightsText, $wgRightsIcon, $wgCopyrightIcon;
1527
1528                 $out = '';
1529
1530                 if ( isset( $wgCopyrightIcon ) && $wgCopyrightIcon ) {
1531                         $out = $wgCopyrightIcon;
1532                 } elseif ( $wgRightsIcon ) {
1533                         $icon = htmlspecialchars( $wgRightsIcon );
1534
1535                         if ( $wgRightsUrl ) {
1536                                 $url = htmlspecialchars( $wgRightsUrl );
1537                                 $out .= '<a href="' . $url . '">';
1538                         }
1539
1540                         $text = htmlspecialchars( $wgRightsText );
1541                         $out .= "<img src=\"$icon\" alt=\"$text\" width=\"88\" height=\"31\" />";
1542
1543                         if ( $wgRightsUrl ) {
1544                                 $out .= '</a>';
1545                         }
1546                 }
1547
1548                 return $out;
1549         }
1550
1551         /**
1552          * Gets the powered by MediaWiki icon.
1553          * @return string
1554          */
1555         function getPoweredBy() {
1556                 global $wgStylePath;
1557
1558                 $url = htmlspecialchars( "$wgStylePath/common/images/poweredby_mediawiki_88x31.png" );
1559                 $img = '<a href="http://www.mediawiki.org/"><img src="' . $url . '" height="31" width="88" alt="Powered by MediaWiki" /></a>';
1560
1561                 return $img;
1562         }
1563
1564         function lastModified() {
1565                 global $wgLang, $wgArticle;
1566
1567                 if ( $this->mRevisionId && $this->mRevisionId != $wgArticle->getLatest() ) {
1568                         $timestamp = Revision::getTimestampFromId( $wgArticle->getTitle(), $this->mRevisionId );
1569                 } else {
1570                         $timestamp = $wgArticle->getTimestamp();
1571                 }
1572
1573                 if ( $timestamp ) {
1574                         $d = $wgLang->date( $timestamp, true );
1575                         $t = $wgLang->time( $timestamp, true );
1576                         $s = ' ' . wfMsg( 'lastmodifiedat', $d, $t );
1577                 } else {
1578                         $s = '';
1579                 }
1580
1581                 if ( wfGetLB()->getLaggedSlaveMode() ) {
1582                         $s .= ' <strong>' . wfMsg( 'laggedslavemode' ) . '</strong>';
1583                 }
1584
1585                 return $s;
1586         }
1587
1588         function logoText( $align = '' ) {
1589                 if ( $align != '' ) {
1590                         $a = " align='{$align}'";
1591                 } else {
1592                         $a = '';
1593                 }
1594
1595                 $mp = wfMsg( 'mainpage' );
1596                 $mptitle = Title::newMainPage();
1597                 $url = ( is_object( $mptitle ) ? $mptitle->escapeLocalURL() : '' );
1598
1599                 $logourl = $this->getLogo();
1600                 $s = "<a href='{$url}'><img{$a} src='{$logourl}' alt='[{$mp}]' /></a>";
1601
1602                 return $s;
1603         }
1604
1605         /**
1606          * Show a drop-down box of special pages
1607          */
1608         function specialPagesList() {
1609                 global $wgContLang, $wgServer, $wgRedirectScript;
1610
1611                 $pages = array_merge( SpecialPage::getRegularPages(), SpecialPage::getRestrictedPages() );
1612
1613                 foreach ( $pages as $name => $page ) {
1614                         $pages[$name] = $page->getDescription();
1615                 }
1616
1617                 $go = wfMsg( 'go' );
1618                 $sp = wfMsg( 'specialpages' );
1619                 $spp = $wgContLang->specialPage( 'Specialpages' );
1620
1621                 $s = '<form id="specialpages" method="get" ' .
1622                   'action="' . htmlspecialchars( "{$wgServer}{$wgRedirectScript}" ) . "\">\n";
1623                 $s .= "<select name=\"wpDropdown\">\n";
1624                 $s .= "<option value=\"{$spp}\">{$sp}</option>\n";
1625
1626
1627                 foreach ( $pages as $name => $desc ) {
1628                         $p = $wgContLang->specialPage( $name );
1629                         $s .= "<option value=\"{$p}\">{$desc}</option>\n";
1630                 }
1631
1632                 $s .= "</select>\n";
1633                 $s .= "<input type='submit' value=\"{$go}\" name='redirect' />\n";
1634                 $s .= "</form>\n";
1635
1636                 return $s;
1637         }
1638
1639         /**
1640          * Gets the link to the wiki's main page.
1641          * @return string
1642          */
1643         function mainPageLink() {
1644                 $s = $this->link(
1645                         Title::newMainPage(),
1646                         wfMsg( 'mainpage' ),
1647                         array(),
1648                         array(),
1649                         array( 'known', 'noclasses' )
1650                 );
1651
1652                 return $s;
1653         }
1654
1655         private function footerLink( $desc, $page ) {
1656                 // if the link description has been set to "-" in the default language,
1657                 if ( wfMsgForContent( $desc )  == '-' ) {
1658                         // then it is disabled, for all languages.
1659                         return '';
1660                 } else {
1661                         // Otherwise, we display the link for the user, described in their
1662                         // language (which may or may not be the same as the default language),
1663                         // but we make the link target be the one site-wide page.
1664                         $title = Title::newFromText( wfMsgForContent( $page ) );
1665
1666                         return $this->linkKnown(
1667                                 $title,
1668                                 wfMsgExt( $desc, array( 'parsemag', 'escapenoentities' ) )
1669                         );
1670                 }
1671         }
1672
1673         /**
1674          * Gets the link to the wiki's privacy policy page.
1675          */
1676         function privacyLink() {
1677                 return $this->footerLink( 'privacy', 'privacypage' );
1678         }
1679
1680         /**
1681          * Gets the link to the wiki's about page.
1682          */
1683         function aboutLink() {
1684                 return $this->footerLink( 'aboutsite', 'aboutpage' );
1685         }
1686
1687         /**
1688          * Gets the link to the wiki's general disclaimers page.
1689          */
1690         function disclaimerLink() {
1691                 return $this->footerLink( 'disclaimers', 'disclaimerpage' );
1692         }
1693
1694         function editThisPage() {
1695                 global $wgOut;
1696
1697                 if ( !$wgOut->isArticleRelated() ) {
1698                         $s = wfMsg( 'protectedpage' );
1699                 } else {
1700                         if ( $this->mTitle->quickUserCan( 'edit' ) && $this->mTitle->exists() ) {
1701                                 $t = wfMsg( 'editthispage' );
1702                         } elseif ( $this->mTitle->quickUserCan( 'create' ) && !$this->mTitle->exists() ) {
1703                                 $t = wfMsg( 'create-this-page' );
1704                         } else {
1705                                 $t = wfMsg( 'viewsource' );
1706                         }
1707
1708                         $s = $this->link(
1709                                 $this->mTitle,
1710                                 $t,
1711                                 array(),
1712                                 $this->editUrlOptions(),
1713                                 array( 'known', 'noclasses' )
1714                         );
1715                 }
1716
1717                 return $s;
1718         }
1719
1720         /**
1721          * Return URL options for the 'edit page' link.
1722          * This may include an 'oldid' specifier, if the current page view is such.
1723          *
1724          * @return array
1725          * @private
1726          */
1727         function editUrlOptions() {
1728                 global $wgArticle;
1729
1730                 $options = array( 'action' => 'edit' );
1731
1732                 if ( $this->mRevisionId && ! $wgArticle->isCurrent() ) {
1733                         $options['oldid'] = intval( $this->mRevisionId );
1734                 }
1735
1736                 return $options;
1737         }
1738
1739         function deleteThisPage() {
1740                 global $wgUser, $wgRequest;
1741
1742                 $diff = $wgRequest->getVal( 'diff' );
1743
1744                 if ( $this->mTitle->getArticleId() && ( !$diff ) && $wgUser->isAllowed( 'delete' ) ) {
1745                         $t = wfMsg( 'deletethispage' );
1746
1747                         $s = $this->link(
1748                                 $this->mTitle,
1749                                 $t,
1750                                 array(),
1751                                 array( 'action' => 'delete' ),
1752                                 array( 'known', 'noclasses' )
1753                         );
1754                 } else {
1755                         $s = '';
1756                 }
1757
1758                 return $s;
1759         }
1760
1761         function protectThisPage() {
1762                 global $wgUser, $wgRequest;
1763
1764                 $diff = $wgRequest->getVal( 'diff' );
1765
1766                 if ( $this->mTitle->getArticleId() && ( ! $diff ) && $wgUser->isAllowed( 'protect' ) ) {
1767                         if ( $this->mTitle->isProtected() ) {
1768                                 $text = wfMsg( 'unprotectthispage' );
1769                                 $query = array( 'action' => 'unprotect' );
1770                         } else {
1771                                 $text = wfMsg( 'protectthispage' );
1772                                 $query = array( 'action' => 'protect' );
1773                         }
1774
1775                         $s = $this->link(
1776                                 $this->mTitle,
1777                                 $text,
1778                                 array(),
1779                                 $query,
1780                                 array( 'known', 'noclasses' )
1781                         );
1782                 } else {
1783                         $s = '';
1784                 }
1785
1786                 return $s;
1787         }
1788
1789         function watchThisPage() {
1790                 global $wgOut;
1791                 ++$this->mWatchLinkNum;
1792
1793                 if ( $wgOut->isArticleRelated() ) {
1794                         if ( $this->mTitle->userIsWatching() ) {
1795                                 $text = wfMsg( 'unwatchthispage' );
1796                                 $query = array( 'action' => 'unwatch' );
1797                                 $id = 'mw-unwatch-link' . $this->mWatchLinkNum;
1798                         } else {
1799                                 $text = wfMsg( 'watchthispage' );
1800                                 $query = array( 'action' => 'watch' );
1801                                 $id = 'mw-watch-link' . $this->mWatchLinkNum;
1802                         }
1803
1804                         $s = $this->link(
1805                                 $this->mTitle,
1806                                 $text,
1807                                 array( 'id' => $id ),
1808                                 $query,
1809                                 array( 'known', 'noclasses' )
1810                         );
1811                 } else {
1812                         $s = wfMsg( 'notanarticle' );
1813                 }
1814
1815                 return $s;
1816         }
1817
1818         function moveThisPage() {
1819                 if ( $this->mTitle->quickUserCan( 'move' ) ) {
1820                         return $this->link(
1821                                 SpecialPage::getTitleFor( 'Movepage' ),
1822                                 wfMsg( 'movethispage' ),
1823                                 array(),
1824                                 array( 'target' => $this->mTitle->getPrefixedDBkey() ),
1825                                 array( 'known', 'noclasses' )
1826                         );
1827                 } else {
1828                         // no message if page is protected - would be redundant
1829                         return '';
1830                 }
1831         }
1832
1833         function historyLink() {
1834                 return $this->link(
1835                         $this->mTitle,
1836                         wfMsgHtml( 'history' ),
1837                         array( 'rel' => 'archives' ),
1838                         array( 'action' => 'history' )
1839                 );
1840         }
1841
1842         function whatLinksHere() {
1843                 return $this->link(
1844                         SpecialPage::getTitleFor( 'Whatlinkshere', $this->mTitle->getPrefixedDBkey() ),
1845                         wfMsgHtml( 'whatlinkshere' ),
1846                         array(),
1847                         array(),
1848                         array( 'known', 'noclasses' )
1849                 );
1850         }
1851
1852         function userContribsLink() {
1853                 return $this->link(
1854                         SpecialPage::getTitleFor( 'Contributions', $this->mTitle->getDBkey() ),
1855                         wfMsgHtml( 'contributions' ),
1856                         array(),
1857                         array(),
1858                         array( 'known', 'noclasses' )
1859                 );
1860         }
1861
1862         function showEmailUser( $id ) {
1863                 global $wgUser;
1864                 $targetUser = User::newFromId( $id );
1865                 return $wgUser->canSendEmail() && # the sending user must have a confirmed email address
1866                         $targetUser->canReceiveEmail(); # the target user must have a confirmed email address and allow emails from users
1867         }
1868
1869         function emailUserLink() {
1870                 return $this->link(
1871                         SpecialPage::getTitleFor( 'Emailuser', $this->mTitle->getDBkey() ),
1872                         wfMsg( 'emailuser' ),
1873                         array(),
1874                         array(),
1875                         array( 'known', 'noclasses' )
1876                 );
1877         }
1878
1879         function watchPageLinksLink() {
1880                 global $wgOut;
1881
1882                 if ( !$wgOut->isArticleRelated() ) {
1883                         return '(' . wfMsg( 'notanarticle' ) . ')';
1884                 } else {
1885                         return $this->link(
1886                                 SpecialPage::getTitleFor( 'Recentchangeslinked', $this->mTitle->getPrefixedDBkey() ),
1887                                 wfMsg( 'recentchangeslinked-toolbox' ),
1888                                 array(),
1889                                 array(),
1890                                 array( 'known', 'noclasses' )
1891                         );
1892                 }
1893         }
1894
1895         function trackbackLink() {
1896                 return '<a href="' . $this->mTitle->trackbackURL() . '">'
1897                         . wfMsg( 'trackbacklink' ) . '</a>';
1898         }
1899
1900         function otherLanguages() {
1901                 global $wgOut, $wgContLang, $wgHideInterlanguageLinks;
1902
1903                 if ( $wgHideInterlanguageLinks ) {
1904                         return '';
1905                 }
1906
1907                 $a = $wgOut->getLanguageLinks();
1908
1909                 if ( 0 == count( $a ) ) {
1910                         return '';
1911                 }
1912
1913                 $s = wfMsg( 'otherlanguages' ) . wfMsg( 'colon-separator' );
1914                 $first = true;
1915
1916                 if ( $wgContLang->isRTL() ) {
1917                         $s .= '<span dir="LTR">';
1918                 }
1919
1920                 foreach ( $a as $l ) {
1921                         if ( !$first ) {
1922                                 $s .= wfMsgExt( 'pipe-separator', 'escapenoentities' );
1923                         }
1924
1925                         $first = false;
1926
1927                         $nt = Title::newFromText( $l );
1928                         $url = $nt->escapeFullURL();
1929                         $text = $wgContLang->getLanguageName( $nt->getInterwiki() );
1930                         $title = htmlspecialchars( $nt->getText() );
1931
1932                         if ( $text == '' ) {
1933                                 $text = $l;
1934                         }
1935
1936                         $style = $this->getExternalLinkAttributes();
1937                         $s .= "<a href=\"{$url}\" title=\"{$title}\"{$style}>{$text}</a>";
1938                 }
1939
1940                 if ( $wgContLang->isRTL() ) {
1941                         $s .= '</span>';
1942                 }
1943
1944                 return $s;
1945         }
1946
1947         function talkLink() {
1948                 if ( NS_SPECIAL == $this->mTitle->getNamespace() ) {
1949                         # No discussion links for special pages
1950                         return '';
1951                 }
1952
1953                 $linkOptions = array();
1954
1955                 if ( $this->mTitle->isTalkPage() ) {
1956                         $link = $this->mTitle->getSubjectPage();
1957                         switch( $link->getNamespace() ) {
1958                                 case NS_MAIN:
1959                                         $text = wfMsg( 'articlepage' );
1960                                         break;
1961                                 case NS_USER:
1962                                         $text = wfMsg( 'userpage' );
1963                                         break;
1964                                 case NS_PROJECT:
1965                                         $text = wfMsg( 'projectpage' );
1966                                         break;
1967                                 case NS_FILE:
1968                                         $text = wfMsg( 'imagepage' );
1969                                         # Make link known if image exists, even if the desc. page doesn't.
1970                                         if ( wfFindFile( $link ) )
1971                                                 $linkOptions[] = 'known';
1972                                         break;
1973                                 case NS_MEDIAWIKI:
1974                                         $text = wfMsg( 'mediawikipage' );
1975                                         break;
1976                                 case NS_TEMPLATE:
1977                                         $text = wfMsg( 'templatepage' );
1978                                         break;
1979                                 case NS_HELP:
1980                                         $text = wfMsg( 'viewhelppage' );
1981                                         break;
1982                                 case NS_CATEGORY:
1983                                         $text = wfMsg( 'categorypage' );
1984                                         break;
1985                                 default:
1986                                         $text = wfMsg( 'articlepage' );
1987                         }
1988                 } else {
1989                         $link = $this->mTitle->getTalkPage();
1990                         $text = wfMsg( 'talkpage' );
1991                 }
1992
1993                 $s = $this->link( $link, $text, array(), array(), $linkOptions );
1994
1995                 return $s;
1996         }
1997
1998         function commentLink() {
1999                 global $wgOut;
2000
2001                 if ( $this->mTitle->getNamespace() == NS_SPECIAL ) {
2002                         return '';
2003                 }
2004
2005                 # __NEWSECTIONLINK___ changes behaviour here
2006                 # If it is present, the link points to this page, otherwise
2007                 # it points to the talk page
2008                 if ( $this->mTitle->isTalkPage() ) {
2009                         $title = $this->mTitle;
2010                 } elseif ( $wgOut->showNewSectionLink() ) {
2011                         $title = $this->mTitle;
2012                 } else {
2013                         $title = $this->mTitle->getTalkPage();
2014                 }
2015
2016                 return $this->link(
2017                         $title,
2018                         wfMsg( 'postcomment' ),
2019                         array(),
2020                         array(
2021                                 'action' => 'edit',
2022                                 'section' => 'new'
2023                         ),
2024                         array( 'known', 'noclasses' )
2025                 );
2026         }
2027
2028         function getUploadLink() {
2029                 global $wgUploadNavigationUrl;
2030
2031                 if ( $wgUploadNavigationUrl ) {
2032                         # Using an empty class attribute to avoid automatic setting of "external" class
2033                         return $this->makeExternalLink( $wgUploadNavigationUrl, wfMsgHtml( 'upload' ), false, null, array( 'class' => '' ) );
2034                 } else {
2035                         return $this->link(
2036                                 SpecialPage::getTitleFor( 'Upload' ),
2037                                 wfMsgHtml( 'upload' ),
2038                                 array(),
2039                                 array(),
2040                                 array( 'known', 'noclasses' )
2041                         );
2042                 }
2043         }
2044
2045         /* these are used extensively in SkinTemplate, but also some other places */
2046         static function makeMainPageUrl( $urlaction = '' ) {
2047                 $title = Title::newMainPage();
2048                 self::checkTitle( $title, '' );
2049
2050                 return $title->getLocalURL( $urlaction );
2051         }
2052
2053         static function makeSpecialUrl( $name, $urlaction = '' ) {
2054                 $title = SpecialPage::getTitleFor( $name );
2055                 return $title->getLocalURL( $urlaction );
2056         }
2057
2058         static function makeSpecialUrlSubpage( $name, $subpage, $urlaction = '' ) {
2059                 $title = SpecialPage::getSafeTitleFor( $name, $subpage );
2060                 return $title->getLocalURL( $urlaction );
2061         }
2062
2063         static function makeI18nUrl( $name, $urlaction = '' ) {
2064                 $title = Title::newFromText( wfMsgForContent( $name ) );
2065                 self::checkTitle( $title, $name );
2066                 return $title->getLocalURL( $urlaction );
2067         }
2068
2069         static function makeUrl( $name, $urlaction = '' ) {
2070                 $title = Title::newFromText( $name );
2071                 self::checkTitle( $title, $name );
2072
2073                 return $title->getLocalURL( $urlaction );
2074         }
2075
2076         /**
2077          * If url string starts with http, consider as external URL, else
2078          * internal
2079          */
2080         static function makeInternalOrExternalUrl( $name ) {
2081                 if ( preg_match( '/^(?:' . wfUrlProtocols() . ')/', $name ) ) {
2082                         return $name;
2083                 } else {
2084                         return self::makeUrl( $name );
2085                 }
2086         }
2087
2088         # this can be passed the NS number as defined in Language.php
2089         static function makeNSUrl( $name, $urlaction = '', $namespace = NS_MAIN ) {
2090                 $title = Title::makeTitleSafe( $namespace, $name );
2091                 self::checkTitle( $title, $name );
2092
2093                 return $title->getLocalURL( $urlaction );
2094         }
2095
2096         /* these return an array with the 'href' and boolean 'exists' */
2097         static function makeUrlDetails( $name, $urlaction = '' ) {
2098                 $title = Title::newFromText( $name );
2099                 self::checkTitle( $title, $name );
2100
2101                 return array(
2102                         'href' => $title->getLocalURL( $urlaction ),
2103                         'exists' => $title->getArticleID() != 0,
2104                 );
2105         }
2106
2107         /**
2108          * Make URL details where the article exists (or at least it's convenient to think so)
2109          */
2110         static function makeKnownUrlDetails( $name, $urlaction = '' ) {
2111                 $title = Title::newFromText( $name );
2112                 self::checkTitle( $title, $name );
2113
2114                 return array(
2115                         'href' => $title->getLocalURL( $urlaction ),
2116                         'exists' => true
2117                 );
2118         }
2119
2120         # make sure we have some title to operate on
2121         static function checkTitle( &$title, $name ) {
2122                 if ( !is_object( $title ) ) {
2123                         $title = Title::newFromText( $name );
2124                         if ( !is_object( $title ) ) {
2125                                 $title = Title::newFromText( '--error: link target missing--' );
2126                         }
2127                 }
2128         }
2129
2130         /**
2131          * Build an array that represents the sidebar(s), the navigation bar among them
2132          *
2133          * @return array
2134          */
2135         function buildSidebar() {
2136                 global $parserMemc, $wgEnableSidebarCache, $wgSidebarCacheExpiry;
2137                 global $wgLang;
2138                 wfProfileIn( __METHOD__ );
2139
2140                 $key = wfMemcKey( 'sidebar', $wgLang->getCode() );
2141
2142                 if ( $wgEnableSidebarCache ) {
2143                         $cachedsidebar = $parserMemc->get( $key );
2144                         if ( $cachedsidebar ) {
2145                                 wfProfileOut( __METHOD__ );
2146                                 return $cachedsidebar;
2147                         }
2148                 }
2149
2150                 $bar = array();
2151                 $this->addToSidebar( $bar, 'sidebar' );
2152
2153                 wfRunHooks( 'SkinBuildSidebar', array( $this, &$bar ) );
2154                 if ( $wgEnableSidebarCache ) {
2155                         $parserMemc->set( $key, $bar, $wgSidebarCacheExpiry );
2156                 }
2157
2158                 wfProfileOut( __METHOD__ );
2159                 return $bar;
2160         }
2161         /**
2162          * Add content from a sidebar system message
2163          * Currently only used for MediaWiki:Sidebar (but may be used by Extensions)
2164          *
2165          * This is just a wrapper around addToSidebarPlain() for backwards compatibility
2166          *
2167          * @param &$bar array
2168          * @param $message String
2169          */
2170         function addToSidebar( &$bar, $message ) {
2171                 $this->addToSidebarPlain( $bar, wfMsgForContent( $message ) );
2172         }
2173
2174         /**
2175          * Add content from plain text
2176          * @since 1.17
2177          * @param &$bar array
2178          * @param $text string
2179          */
2180         function addToSidebarPlain( &$bar, $text ) {
2181                 $lines = explode( "\n", $text );
2182                 $wikiBar = array(); # We need to handle the wikitext on a different variable, to avoid trying to do an array operation on text, which would be a fatal error.
2183
2184                 $heading = '';
2185
2186                 foreach ( $lines as $line ) {
2187                         if ( strpos( $line, '*' ) !== 0 ) {
2188                                 continue;
2189                         }
2190
2191                         if ( strpos( $line, '**' ) !== 0 ) {
2192                                 $heading = trim( $line, '* ' );
2193                                 if ( !array_key_exists( $heading, $bar ) ) {
2194                                         $bar[$heading] = array();
2195                                 }
2196                         } else {
2197                                 $line = trim( $line, '* ' );
2198
2199                                 if ( strpos( $line, '|' ) !== false ) { // sanity check
2200                                         $line = array_map( 'trim', explode( '|', $line, 2 ) );
2201                                         $link = wfMsgForContent( $line[0] );
2202
2203                                         if ( $link == '-' ) {
2204                                                 continue;
2205                                         }
2206
2207                                         $text = wfMsgExt( $line[1], 'parsemag' );
2208
2209                                         if ( wfEmptyMsg( $line[1], $text ) ) {
2210                                                 $text = $line[1];
2211                                         }
2212
2213                                         if ( wfEmptyMsg( $line[0], $link ) ) {
2214                                                 $link = $line[0];
2215                                         }
2216
2217                                         if ( preg_match( '/^(?:' . wfUrlProtocols() . ')/', $link ) ) {
2218                                                 $href = $link;
2219                                         } else {
2220                                                 $title = Title::newFromText( $link );
2221
2222                                                 if ( $title ) {
2223                                                         $title = $title->fixSpecialName();
2224                                                         $href = $title->getLocalURL();
2225                                                 } else {
2226                                                         $href = 'INVALID-TITLE';
2227                                                 }
2228                                         }
2229
2230                                         $bar[$heading][] = array(
2231                                                 'text' => $text,
2232                                                 'href' => $href,
2233                                                 'id' => 'n-' . strtr( $line[1], ' ', '-' ),
2234                                                 'active' => false
2235                                         );
2236                                 } else if ( ( substr( $line, 0, 2 ) == '{{' ) && ( substr( $line, -2 ) == '}}' ) ) {
2237                                         global $wgParser, $wgTitle;
2238
2239                                         $line = substr( $line, 2, strlen( $line ) - 4 );
2240
2241                                         $options = new ParserOptions();
2242                                         $options->setEditSection( false );
2243                                         $options->setInterfaceMessage( true );
2244                                         $wikiBar[$heading] = $wgParser->parse( wfMsgForContentNoTrans( $line ) , $wgTitle, $options )->getText();
2245                                 } else {
2246                                         continue;
2247                                 }
2248                         }
2249                 }
2250
2251                 if ( count( $wikiBar ) > 0 ) {
2252                         $bar = array_merge( $bar, $wikiBar );
2253                 }
2254
2255                 return $bar;
2256         }
2257
2258         /**
2259          * Should we include common/wikiprintable.css?  Skins that have their own
2260          * print stylesheet should override this and return false.  (This is an
2261          * ugly hack to get Monobook to play nicely with
2262          * OutputPage::headElement().)
2263          *
2264          * @return bool
2265          */
2266         public function commonPrintStylesheet() {
2267                 return true;
2268         }
2269
2270         /**
2271          * Gets new talk page messages for the current user.
2272          * @return MediaWiki message or if no new talk page messages, nothing
2273          */
2274         function getNewtalks() {
2275                 global $wgUser, $wgOut;
2276
2277                 $newtalks = $wgUser->getNewMessageLinks();
2278                 $ntl = '';
2279
2280                 if ( count( $newtalks ) == 1 && $newtalks[0]['wiki'] === wfWikiID() ) {
2281                         $userTitle = $this->mUser->getUserPage();
2282                         $userTalkTitle = $userTitle->getTalkPage();
2283
2284                         if ( !$userTalkTitle->equals( $this->mTitle ) ) {
2285                                 $newMessagesLink = $this->link(
2286                                         $userTalkTitle,
2287                                         wfMsgHtml( 'newmessageslink' ),
2288                                         array(),
2289                                         array( 'redirect' => 'no' ),
2290                                         array( 'known', 'noclasses' )
2291                                 );
2292
2293                                 $newMessagesDiffLink = $this->link(
2294                                         $userTalkTitle,
2295                                         wfMsgHtml( 'newmessagesdifflink' ),
2296                                         array(),
2297                                         array( 'diff' => 'cur' ),
2298                                         array( 'known', 'noclasses' )
2299                                 );
2300
2301                                 $ntl = wfMsg(
2302                                         'youhavenewmessages',
2303                                         $newMessagesLink,
2304                                         $newMessagesDiffLink
2305                                 );
2306                                 # Disable Squid cache
2307                                 $wgOut->setSquidMaxage( 0 );
2308                         }
2309                 } elseif ( count( $newtalks ) ) {
2310                         // _>" " for BC <= 1.16
2311                         $sep = str_replace( '_', ' ', wfMsgHtml( 'newtalkseparator' ) );
2312                         $msgs = array();
2313
2314                         foreach ( $newtalks as $newtalk ) {
2315                                 $msgs[] = Xml::element(
2316                                         'a',
2317                                         array( 'href' => $newtalk['link'] ), $newtalk['wiki']
2318                                 );
2319                         }
2320                         $parts = implode( $sep, $msgs );
2321                         $ntl = wfMsgHtml( 'youhavenewmessagesmulti', $parts );
2322                         $wgOut->setSquidMaxage( 0 );
2323                 }
2324
2325                 return $ntl;
2326         }
2327 }