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 abstract class Skin extends Linker {
  19         /**#@+
  20          * @private
  21          */
  22         var $mWatchLinkNum = 0; // Appended to end of watch link id's
  23         /**#@-*/
  24         protected $mRevisionId; // The revision ID we're looking at, null if not applicable.
  25         protected $skinname = 'standard';
  26         /**
  27          * todo Fixme: should be protected :-\
  28          * @var Title
  29          */
  30         var $mTitle = null;
  31         protected $mRelevantTitle = null;
  32         protected $mRelevantUser = null;
  33
  34         /** Constructor, call parent constructor */
  35         function __construct() {
  36                 parent::__construct();
  37         }
  38
  39         /**
  40          * Fetch the set of available skins.
  41          * @return array of strings
  42          */
  43         static function getSkinNames() {
  44                 global $wgValidSkinNames;
  45                 static $skinsInitialised = false;
  46
  47                 if ( !$skinsInitialised || !count( $wgValidSkinNames ) ) {
  48                         # Get a list of available skins
  49                         # Build using the regular expression '^(.*).php$'
  50                         # Array keys are all lower case, array value keep the case used by filename
  51                         #
  52                         wfProfileIn( __METHOD__ . '-init' );
  53
  54                         global $wgStyleDirectory;
  55
  56                         $skinDir = dir( $wgStyleDirectory );
  57
  58                         # while code from www.php.net
  59                         while ( false !== ( $file = $skinDir->read() ) ) {
  60                                 // Skip non-PHP files, hidden files, and '.dep' includes
  61                                 $matches = array();
  62
  63                                 if ( preg_match( '/^([^.]*)\.php$/', $file, $matches ) ) {
  64                                         $aSkin = $matches[1];
  65                                         $wgValidSkinNames[strtolower( $aSkin )] = $aSkin;
  66                                 }
  67                         }
  68                         $skinDir->close();
  69                         $skinsInitialised = true;
  70                         wfProfileOut( __METHOD__ . '-init' );
  71                 }
  72                 return $wgValidSkinNames;
  73         }
  74
  75         /**
  76          * Fetch the list of usable skins in regards to $wgSkipSkins.
  77          * Useful for Special:Preferences and other places where you
  78          * only want to show skins users _can_ use.
  79          * @return array of strings
  80          */
  81         public static function getUsableSkins() {
  82                 global $wgSkipSkins;
  83
  84                 $usableSkins = self::getSkinNames();
  85
  86                 foreach ( $wgSkipSkins as $skip ) {
  87                         unset( $usableSkins[$skip] );
  88                 }
  89
  90                 return $usableSkins;
  91         }
  92
  93         /**
  94          * Normalize a skin preference value to a form that can be loaded.
  95          * If a skin can't be found, it will fall back to the configured
  96          * default (or the old 'Classic' skin if that's broken).
  97          * @param $key String: 'monobook', 'standard', etc.
  98          * @return string
  99          */
 100         static function normalizeKey( $key ) {
 101                 global $wgDefaultSkin;
 102
 103                 $skinNames = Skin::getSkinNames();
 104
 105                 if ( $key == '' ) {
 106                         // Don't return the default immediately;
 107                         // in a misconfiguration we need to fall back.
 108                         $key = $wgDefaultSkin;
 109                 }
 110
 111                 if ( isset( $skinNames[$key] ) ) {
 112                         return $key;
 113                 }
 114
 115                 // Older versions of the software used a numeric setting
 116                 // in the user preferences.
 117                 $fallback = array(
 118                         0 => $wgDefaultSkin,
 119                         1 => 'nostalgia',
 120                         2 => 'cologneblue'
 121                 );
 122
 123                 if ( isset( $fallback[$key] ) ) {
 124                         $key = $fallback[$key];
 125                 }
 126
 127                 if ( isset( $skinNames[$key] ) ) {
 128                         return $key;
 129                 } else if ( isset( $skinNames[$wgDefaultSkin] ) ) {
 130                         return $wgDefaultSkin;
 131                 } else {
 132                         return 'vector';
 133                 }
 134         }
 135
 136         /**
 137          * Factory method for loading a skin of a given type
 138          * @param $key String: 'monobook', 'standard', etc.
 139          * @return Skin
 140          */
 141         static function &newFromKey( $key ) {
 142                 global $wgStyleDirectory;
 143
 144                 $key = Skin::normalizeKey( $key );
 145
 146                 $skinNames = Skin::getSkinNames();
 147                 $skinName = $skinNames[$key];
 148                 $className = "Skin{$skinName}";
 149
 150                 # Grab the skin class and initialise it.
 151                 if ( !class_exists( $className ) ) {
 152                         // Preload base classes to work around APC/PHP5 bug
 153                         $deps = "{$wgStyleDirectory}/{$skinName}.deps.php";
 154
 155                         if ( file_exists( $deps ) ) {
 156                                 include_once( $deps );
 157                         }
 158                         require_once( "{$wgStyleDirectory}/{$skinName}.php" );
 159
 160                         # Check if we got if not failback to default skin
 161                         if ( !class_exists( $className ) ) {
 162                                 # DO NOT die if the class isn't found. This breaks maintenance
 163                                 # scripts and can cause a user account to be unrecoverable
 164                                 # except by SQL manipulation if a previously valid skin name
 165                                 # is no longer valid.
 166                                 wfDebug( "Skin class does not exist: $className\n" );
 167                                 $className = 'SkinVector';
 168                                 require_once( "{$wgStyleDirectory}/Vector.php" );
 169                         }
 170                 }
 171                 $skin = new $className;
 172                 return $skin;
 173         }
 174
 175         /** @return string path to the skin stylesheet */
 176         function getStylesheet() {
 177                 return 'common/wikistandard.css';
 178         }
 179
 180         /** @return string skin name */
 181         public function getSkinName() {
 182                 return $this->skinname;
 183         }
 184
 185         function initPage( OutputPage $out ) {
 186                 global $wgFavicon, $wgAppleTouchIcon, $wgEnableAPI;
 187
 188                 wfProfileIn( __METHOD__ );
 189
 190                 # Generally the order of the favicon and apple-touch-icon links
 191                 # should not matter, but Konqueror (3.5.9 at least) incorrectly
 192                 # uses whichever one appears later in the HTML source. Make sure
 193                 # apple-touch-icon is specified first to avoid this.
 194                 if ( false !== $wgAppleTouchIcon ) {
 195                         $out->addLink( array( 'rel' => 'apple-touch-icon', 'href' => $wgAppleTouchIcon ) );
 196                 }
 197
 198                 if ( false !== $wgFavicon ) {
 199                         $out->addLink( array( 'rel' => 'shortcut icon', 'href' => $wgFavicon ) );
 200                 }
 201
 202                 # OpenSearch description link
 203                 $out->addLink( array(
 204                         'rel' => 'search',
 205                         'type' => 'application/opensearchdescription+xml',
 206                         'href' => wfScript( 'opensearch_desc' ),
 207                         'title' => wfMsgForContent( 'opensearch-desc' ),
 208                 ) );
 209
 210                 if ( $wgEnableAPI ) {
 211                         # Real Simple Discovery link, provides auto-discovery information
 212                         # for the MediaWiki API (and potentially additional custom API
 213                         # support such as WordPress or Twitter-compatible APIs for a
 214                         # blogging extension, etc)
 215                         $out->addLink( array(
 216                                 'rel' => 'EditURI',
 217                                 'type' => 'application/rsd+xml',
 218                                 'href' => wfExpandUrl( wfAppendQuery( wfScript( 'api' ), array( 'action' => 'rsd' ) ) ),
 219                         ) );
 220                 }
 221
 222                 $this->addMetadataLinks( $out );
 223
 224                 $this->mRevisionId = $out->mRevisionId;
 225
 226                 $this->preloadExistence();
 227
 228                 wfProfileOut( __METHOD__ );
 229         }
 230
 231         /**
 232          * Preload the existence of three commonly-requested pages in a single query
 233          */
 234         function preloadExistence() {
 235                 global $wgUser;
 236
 237                 // User/talk link
 238                 $titles = array( $wgUser->getUserPage(), $wgUser->getTalkPage() );
 239
 240                 // Other tab link
 241                 if ( $this->mTitle->getNamespace() == NS_SPECIAL ) {
 242                         // nothing
 243                 } elseif ( $this->mTitle->isTalkPage() ) {
 244                         $titles[] = $this->mTitle->getSubjectPage();
 245                 } else {
 246                         $titles[] = $this->mTitle->getTalkPage();
 247                 }
 248
 249                 $lb = new LinkBatch( $titles );
 250                 $lb->setCaller( __METHOD__ );
 251                 $lb->execute();
 252         }
 253
 254         /**
 255          * Adds metadata links below to the HTML output.
 256          * <ol>
 257          *  <li>Creative Commons
 258          *   <br />See http://wiki.creativecommons.org/Extend_Metadata.
 259          *  </li>
 260          *  <li>Dublin Core</li>
 261          *  <li>Use hreflang to specify canonical and alternate links
 262          *   <br />See http://www.google.com/support/webmasters/bin/answer.py?answer=189077
 263          *  </li>
 264          *  <li>Copyright</li>
 265          * <ol>
 266          *
 267          * @param $out Object: instance of OutputPage
 268          */
 269         function addMetadataLinks( OutputPage $out ) {
 270                 global $wgEnableDublinCoreRdf, $wgEnableCreativeCommonsRdf;
 271                 global $wgDisableLangConversion, $wgCanonicalLanguageLinks, $wgContLang;
 272                 global $wgRightsPage, $wgRightsUrl;
 273
 274                 if ( $out->isArticleRelated() ) {
 275                         # note: buggy CC software only reads first "meta" link
 276                         if ( $wgEnableCreativeCommonsRdf ) {
 277                                 $out->addMetadataLink( array(
 278                                         'title' => 'Creative Commons',
 279                                         'type' => 'application/rdf+xml',
 280                                         'href' => $this->mTitle->getLocalURL( 'action=creativecommons' ) )
 281                                 );
 282                         }
 283
 284                         if ( $wgEnableDublinCoreRdf ) {
 285                                 $out->addMetadataLink( array(
 286                                         'title' => 'Dublin Core',
 287                                         'type' => 'application/rdf+xml',
 288                                         'href' => $this->mTitle->getLocalURL( 'action=dublincore' ) )
 289                                 );
 290                         }
 291                 }
 292
 293                 if ( !$wgDisableLangConversion && $wgCanonicalLanguageLinks
 294                         && $wgContLang->hasVariants() ) {
 295
 296                         $urlvar = $wgContLang->getURLVariant();
 297
 298                         if ( !$urlvar ) {
 299                                 $variants = $wgContLang->getVariants();
 300                                 foreach ( $variants as $_v ) {
 301                                         $out->addLink( array(
 302                                                 'rel' => 'alternate',
 303                                                 'hreflang' => $_v,
 304                                                 'href' => $this->mTitle->getLocalURL( '', $_v ) )
 305                                         );
 306                                 }
 307                         } else {
 308                                 $out->addLink( array(
 309                                         'rel' => 'canonical',
 310                                         'href' => $this->mTitle->getFullURL() )
 311                                 );
 312                         }
 313                 }
 314
 315                 $copyright = '';
 316                 if ( $wgRightsPage ) {
 317                         $copy = Title::newFromText( $wgRightsPage );
 318
 319                         if ( $copy ) {
 320                                 $copyright = $copy->getLocalURL();
 321                         }
 322                 }
 323
 324                 if ( !$copyright && $wgRightsUrl ) {
 325                         $copyright = $wgRightsUrl;
 326                 }
 327
 328                 if ( $copyright ) {
 329                         $out->addLink( array(
 330                                 'rel' => 'copyright',
 331                                 'href' => $copyright )
 332                         );
 333                 }
 334         }
 335
 336         /**
 337          * Set some local variables
 338          */
 339         protected function setMembers() {
 340                 global $wgUser;
 341                 $this->mUser = $wgUser;
 342                 $this->userpage = $wgUser->getUserPage()->getPrefixedText();
 343                 $this->usercss = false;
 344         }
 345
 346         /**
 347          * Whether the revision displayed is the latest revision of the page
 348          *
 349          * @return Boolean
 350          */
 351         public function isRevisionCurrent() {
 352                 return $this->mRevisionId == 0 || $this->mRevisionId == $this->mTitle->getLatestRevID();
 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          * Set the "relevant" title
 370          * @see self::getRelevantTitle()
 371          * @param $t Title object to use
 372          */
 373         public function setRelevantTitle( $t ) {
 374                 $this->mRelevantTitle = $t;
 375         }
 376
 377         /**
 378          * Return the "relevant" title.
 379          * A "relevant" title is not necessarily the actual title of the page.
 380          * Special pages like Special:MovePage use set the page they are acting on
 381          * as their "relevant" title, this allows the skin system to display things
 382          * such as content tabs which belong to to that page instead of displaying
 383          * a basic special page tab which has almost no meaning.
 384          */
 385         public function getRelevantTitle() {
 386                 if ( isset($this->mRelevantTitle) ) {
 387                         return $this->mRelevantTitle;
 388                 }
 389                 return $this->mTitle;
 390         }
 391
 392         /**
 393          * Set the "relevant" user
 394          * @see self::getRelevantUser()
 395          * @param $u User object to use
 396          */
 397         public function setRelevantUser( $u ) {
 398                 $this->mRelevantUser = $u;
 399         }
 400
 401         /**
 402          * Return the "relevant" user.
 403          * A "relevant" user is similar to a relevant title. Special pages like
 404          * Special:Contributions mark the user which they are relevant to so that
 405          * things like the toolbox can display the information they usually are only
 406          * able to display on a user's userpage and talkpage.
 407          */
 408         public function getRelevantUser() {
 409                 if ( isset($this->mRelevantUser) ) {
 410                         return $this->mRelevantUser;
 411                 }
 412                 $title = $this->getRelevantTitle();
 413                 if( $title->getNamespace() == NS_USER || $title->getNamespace() == NS_USER_TALK ) {
 414                         $rootUser = strtok( $title->getText(), '/' );
 415                         if ( User::isIP( $rootUser ) ) {
 416                                 $this->mRelevantUser = User::newFromName( $rootUser, false );
 417                         } else {
 418                                 $user = User::newFromName( $rootUser );
 419                                 if ( $user->isLoggedIn() ) {
 420                                         $this->mRelevantUser = $user;
 421                                 }
 422                         }
 423                         return $this->mRelevantUser;
 424                 }
 425                 return null;
 426         }
 427
 428         /**
 429          * Outputs the HTML generated by other functions.
 430          * @param $out Object: instance of OutputPage
 431          * @todo Exterminate!
 432          */
 433         function outputPage( OutputPage $out ) {
 434                 global $wgDebugComments;
 435                 wfProfileIn( __METHOD__ );
 436
 437                 $this->setMembers();
 438                 $this->initPage( $out );
 439
 440                 // See self::afterContentHook() for documentation
 441                 $afterContent = $this->afterContentHook();
 442
 443                 $out->out( $out->headElement( $this ) );
 444
 445                 if ( $wgDebugComments ) {
 446                         $out->out( "<!-- Debug output:\n" .
 447                           $out->mDebugtext . "-->\n" );
 448                 }
 449
 450                 $out->out( $this->beforeContent() );
 451
 452                 $out->out( $out->mBodytext . "\n" );
 453
 454                 $out->out( $this->afterContent() );
 455
 456                 $out->out( $afterContent );
 457
 458                 $out->out( $this->bottomScripts( $out ) );
 459
 460                 $out->out( wfReportTime() );
 461
 462                 $out->out( "\n</body></html>" );
 463                 wfProfileOut( __METHOD__ );
 464         }
 465
 466         static function makeVariablesScript( $data ) {
 467                 if ( $data ) {
 468                         return Html::inlineScript(
 469                                 ResourceLoader::makeLoaderConditionalScript( ResourceLoader::makeConfigSetScript( $data ) )
 470                         );
 471                 } else {
 472                         return '';
 473                 }
 474         }
 475
 476         /**
 477          * To make it harder for someone to slip a user a fake
 478          * user-JavaScript or user-CSS preview, a random token
 479          * is associated with the login session. If it's not
 480          * passed back with the preview request, we won't render
 481          * the code.
 482          *
 483          * @param $action String: 'edit', 'submit' etc.
 484          * @return bool
 485          */
 486         public function userCanPreview( $action ) {
 487                 global $wgRequest, $wgUser;
 488
 489                 if ( $action != 'submit' ) {
 490                         return false;
 491                 }
 492                 if ( !$wgRequest->wasPosted() ) {
 493                         return false;
 494                 }
 495                 if ( !$this->mTitle->userCanEditCssSubpage() ) {
 496                         return false;
 497                 }
 498                 if ( !$this->mTitle->userCanEditJsSubpage() ) {
 499                         return false;
 500                 }
 501
 502                 return $wgUser->matchEditToken(
 503                         $wgRequest->getVal( 'wpEditToken' ) );
 504         }
 505
 506         /**
 507          * Generated JavaScript action=raw&gen=js
 508          * This returns MediaWiki:Common.js and MediaWiki:[Skinname].js concate-
 509          * nated together.  For some bizarre reason, it does *not* return any
 510          * custom user JS from subpages.  Huh?
 511          *
 512          * There's absolutely no reason to have separate Monobook/Common JSes.
 513          * Any JS that cares can just check the skin variable generated at the
 514          * top.  For now Monobook.js will be maintained, but it should be consi-
 515          * dered deprecated.
 516          *
 517          * @param $skinName String: If set, overrides the skin name
 518          * @return string
 519          */
 520         public function generateUserJs( $skinName = null ) {
 521
 522                 // Stub - see ResourceLoaderSiteModule, CologneBlue, Simple and Standard skins override this
 523
 524                 return '';
 525         }
 526
 527         /**
 528          * Generate user stylesheet for action=raw&gen=css
 529          */
 530         public function generateUserStylesheet() {
 531
 532                 // Stub - see ResourceLoaderUserModule, CologneBlue, Simple and Standard skins override this
 533
 534                 return '';
 535         }
 536
 537         /**
 538          * Split for easier subclassing in SkinSimple, SkinStandard and SkinCologneBlue
 539          * Anything in here won't be generated if $wgAllowUserCssPrefs is false.
 540          */
 541         protected function reallyGenerateUserStylesheet() {
 542
 543                 // Stub - see  ResourceLoaderUserModule, CologneBlue, Simple and Standard skins override this
 544
 545                 return '';
 546         }
 547
 548         /**
 549          * @private
 550          */
 551         function setupUserCss( OutputPage $out ) {
 552                 global $wgRequest, $wgUser;
 553                 global $wgUseSiteCss, $wgAllowUserCss, $wgAllowUserCssPrefs;
 554
 555                 wfProfileIn( __METHOD__ );
 556
 557                 $this->setupSkinUserCss( $out );
 558                 // Add any extension CSS
 559                 foreach ( $out->getExtStyle() as $url ) {
 560                         $out->addStyle( $url );
 561                 }
 562
 563                 // Per-site custom styles
 564                 if ( $wgUseSiteCss ) {
 565                         $out->addModuleStyles( 'site' );
 566                         if( $wgUser->isLoggedIn() ){
 567                                 $out->addModuleStyles( 'user.groups' );
 568                         }
 569                 }
 570
 571                 // Per-user custom styles
 572                 if ( $wgAllowUserCss ) {
 573                         if ( $this->mTitle->isCssSubpage() && $this->userCanPreview( $wgRequest->getVal( 'action' ) ) ) {
 574                                 // @FIXME: properly escape the cdata!
 575                                 $out->addInlineStyle( $wgRequest->getText( 'wpTextbox1' ) );
 576                         } else {
 577                                 $out->addModuleStyles( 'user' );
 578                         }
 579                 }
 580
 581                 // Per-user preference styles
 582                 if ( $wgAllowUserCssPrefs ) {
 583                         $out->addModuleStyles( 'user.options' );
 584                 }
 585
 586                 wfProfileOut( __METHOD__ );
 587         }
 588
 589         /**
 590          * Get the query to generate a dynamic stylesheet
 591          *
 592          * @return array
 593          */
 594         public static function getDynamicStylesheetQuery() {
 595                 global $wgSquidMaxage;
 596
 597                 return array(
 598                                 'action' => 'raw',
 599                                 'maxage' => $wgSquidMaxage,
 600                                 'usemsgcache' => 'yes',
 601                                 'ctype' => 'text/css',
 602                                 'smaxage' => $wgSquidMaxage,
 603                         );
 604         }
 605
 606         /**
 607          * Add skin specific stylesheets
 608          * @param $out OutputPage
 609          * @delete
 610          */
 611         abstract function setupSkinUserCss( OutputPage $out );
 612
 613         function getPageClasses( $title ) {
 614                 $numeric = 'ns-' . $title->getNamespace();
 615
 616                 if ( $title->getNamespace() == NS_SPECIAL ) {
 617                         $type = 'ns-special';
 618                         // bug 23315: provide a class based on the canonical special page name without subpages
 619                         list( $canonicalName ) = SpecialPage::resolveAliasWithSubpage( $title->getDBkey() );
 620                         if ( $canonicalName ) {
 621                                 $type .= ' ' . Sanitizer::escapeClass( "mw-special-$canonicalName" );
 622                         } else {
 623                                 $type .= ' mw-invalidspecialpage';
 624                         }
 625                 } elseif ( $title->isTalkPage() ) {
 626                         $type = 'ns-talk';
 627                 } else {
 628                         $type = 'ns-subject';
 629                 }
 630
 631                 $name = Sanitizer::escapeClass( 'page-' . $title->getPrefixedText() );
 632
 633                 return "$numeric $type $name";
 634         }
 635
 636         /**
 637          * This will be called by OutputPage::headElement when it is creating the
 638          * <body> tag, skins can override it if they have a need to add in any
 639          * body attributes or classes of their own.
 640          */
 641         function addToBodyAttributes( $out, &$bodyAttrs ) {
 642                 // does nothing by default
 643         }
 644
 645         /**
 646          * URL to the logo
 647          */
 648         function getLogo() {
 649                 global $wgLogo;
 650                 return $wgLogo;
 651         }
 652
 653         function getCategoryLinks() {
 654                 global $wgOut, $wgUseCategoryBrowser;
 655                 global $wgContLang, $wgUser;
 656
 657                 if ( count( $wgOut->mCategoryLinks ) == 0 ) {
 658                         return '';
 659                 }
 660
 661                 # Separator
 662                 $sep = wfMsgExt( 'catseparator', array( 'parsemag', 'escapenoentities' ) );
 663
 664                 // Use Unicode bidi embedding override characters,
 665                 // to make sure links don't smash each other up in ugly ways.
 666                 $dir = $wgContLang->getDir();
 667                 $embed = "<span dir='$dir'>";
 668                 $pop = '</span>';
 669
 670                 $allCats = $wgOut->getCategoryLinks();
 671                 $s = '';
 672                 $colon = wfMsgExt( 'colon-separator', 'escapenoentities' );
 673
 674                 if ( !empty( $allCats['normal'] ) ) {
 675                         $t = $embed . implode( "{$pop} {$sep} {$embed}" , $allCats['normal'] ) . $pop;
 676
 677                         $msg = wfMsgExt( 'pagecategories', array( 'parsemag', 'escapenoentities' ), count( $allCats['normal'] ) );
 678                         $s .= '<div id="mw-normal-catlinks">' .
 679                                 $this->link( Title::newFromText( wfMsgForContent( 'pagecategorieslink' ) ), $msg )
 680                                 . $colon . $t . '</div>';
 681                 }
 682
 683                 # Hidden categories
 684                 if ( isset( $allCats['hidden'] ) ) {
 685                         if ( $wgUser->getBoolOption( 'showhiddencats' ) ) {
 686                                 $class = 'mw-hidden-cats-user-shown';
 687                         } elseif ( $this->mTitle->getNamespace() == NS_CATEGORY ) {
 688                                 $class = 'mw-hidden-cats-ns-shown';
 689                         } else {
 690                                 $class = 'mw-hidden-cats-hidden';
 691                         }
 692
 693                         $s .= "<div id=\"mw-hidden-catlinks\" class=\"$class\">" .
 694                                 wfMsgExt( 'hidden-categories', array( 'parsemag', 'escapenoentities' ), count( $allCats['hidden'] ) ) .
 695                                 $colon . $embed . implode( "$pop $sep $embed", $allCats['hidden'] ) . $pop .
 696                                 '</div>';
 697                 }
 698
 699                 # optional 'dmoz-like' category browser. Will be shown under the list
 700                 # of categories an article belong to
 701                 if ( $wgUseCategoryBrowser ) {
 702                         $s .= '<br /><hr />';
 703
 704                         # get a big array of the parents tree
 705                         $parenttree = $this->mTitle->getParentCategoryTree();
 706                         # Skin object passed by reference cause it can not be
 707                         # accessed under the method subfunction drawCategoryBrowser
 708                         $tempout = explode( "\n", $this->drawCategoryBrowser( $parenttree, $this ) );
 709                         # Clean out bogus first entry and sort them
 710                         unset( $tempout[0] );
 711                         asort( $tempout );
 712                         # Output one per line
 713                         $s .= implode( "<br />\n", $tempout );
 714                 }
 715
 716                 return $s;
 717         }
 718
 719         /**
 720          * Render the array as a serie of links.
 721          * @param $tree Array: categories tree returned by Title::getParentCategoryTree
 722          * @param &skin Object: skin passed by reference
 723          * @return String separated by &gt;, terminate with "\n"
 724          */
 725         function drawCategoryBrowser( $tree, &$skin ) {
 726                 $return = '';
 727
 728                 foreach ( $tree as $element => $parent ) {
 729                         if ( empty( $parent ) ) {
 730                                 # element start a new list
 731                                 $return .= "\n";
 732                         } else {
 733                                 # grab the others elements
 734                                 $return .= $this->drawCategoryBrowser( $parent, $skin ) . ' &gt; ';
 735                         }
 736
 737                         # add our current element to the list
 738                         $eltitle = Title::newFromText( $element );
 739                         $return .=  $skin->link( $eltitle, $eltitle->getText() );
 740                 }
 741
 742                 return $return;
 743         }
 744
 745         function getCategories() {
 746                 $catlinks = $this->getCategoryLinks();
 747
 748                 $classes = 'catlinks';
 749
 750                 global $wgOut, $wgUser;
 751
 752                 // Check what we're showing
 753                 $allCats = $wgOut->getCategoryLinks();
 754                 $showHidden = $wgUser->getBoolOption( 'showhiddencats' ) ||
 755                                                 $this->mTitle->getNamespace() == NS_CATEGORY;
 756
 757                 if ( empty( $allCats['normal'] ) && !( !empty( $allCats['hidden'] ) && $showHidden ) ) {
 758                         $classes .= ' catlinks-allhidden';
 759                 }
 760
 761                 return "<div id='catlinks' class='$classes'>{$catlinks}</div>";
 762         }
 763
 764         /**
 765          * This runs a hook to allow extensions placing their stuff after content
 766          * and article metadata (e.g. categories).
 767          * Note: This function has nothing to do with afterContent().
 768          *
 769          * This hook is placed here in order to allow using the same hook for all
 770          * skins, both the SkinTemplate based ones and the older ones, which directly
 771          * use this class to get their data.
 772          *
 773          * The output of this function gets processed in SkinTemplate::outputPage() for
 774          * the SkinTemplate based skins, all other skins should directly echo it.
 775          *
 776          * Returns an empty string by default, if not changed by any hook function.
 777          */
 778         protected function afterContentHook() {
 779                 $data = '';
 780
 781                 if ( wfRunHooks( 'SkinAfterContent', array( &$data, $this ) ) ) {
 782                         // adding just some spaces shouldn't toggle the output
 783                         // of the whole <div/>, so we use trim() here
 784                         if ( trim( $data ) != '' ) {
 785                                 // Doing this here instead of in the skins to
 786                                 // ensure that the div has the same ID in all
 787                                 // skins
 788                                 $data = "<div id='mw-data-after-content'>\n" .
 789                                         "\t$data\n" .
 790                                         "</div>\n";
 791                         }
 792                 } else {
 793                         wfDebug( "Hook SkinAfterContent changed output processing.\n" );
 794                 }
 795
 796                 return $data;
 797         }
 798
 799         /**
 800          * Generate debug data HTML for displaying at the bottom of the main content
 801          * area.
 802          * @return String HTML containing debug data, if enabled (otherwise empty).
 803          */
 804         protected function generateDebugHTML() {
 805                 global $wgShowDebug, $wgOut;
 806
 807                 if ( $wgShowDebug ) {
 808                         $listInternals = $this->formatDebugHTML( $wgOut->mDebugtext );
 809                         return "\n<hr />\n<strong>Debug data:</strong><ul style=\"font-family:monospace;\" id=\"mw-debug-html\">" .
 810                                 $listInternals . "</ul>\n";
 811                 }
 812
 813                 return '';
 814         }
 815
 816         private function formatDebugHTML( $debugText ) {
 817                 $lines = explode( "\n", $debugText );
 818                 $curIdent = 0;
 819                 $ret = '<li>';
 820
 821                 foreach ( $lines as $line ) {
 822                         $display = ltrim( $line );
 823                         $ident = strlen( $line ) - strlen( $display );
 824                         $diff = $ident - $curIdent;
 825
 826                         if ( $display == '' ) {
 827                                 $display = "\xc2\xa0";
 828                         }
 829
 830                         if ( !$ident && $diff < 0 && substr( $display, 0, 9 ) != 'Entering ' && substr( $display, 0, 8 ) != 'Exiting ' ) {
 831                                 $ident = $curIdent;
 832                                 $diff = 0;
 833                                 $display = '<span style="background:yellow;">' . htmlspecialchars( $display ) . '</span>';
 834                         } else {
 835                                 $display = htmlspecialchars( $display );
 836                         }
 837
 838                         if ( $diff < 0 ) {
 839                                 $ret .= str_repeat( "</li></ul>\n", -$diff ) . "</li><li>\n";
 840                         } elseif ( $diff == 0 ) {
 841                                 $ret .= "</li><li>\n";
 842                         } else {
 843                                 $ret .= str_repeat( "<ul><li>\n", $diff );
 844                         }
 845                         $ret .= $display . "\n";
 846
 847                         $curIdent = $ident;
 848                 }
 849
 850                 $ret .= str_repeat( '</li></ul>', $curIdent ) . '</li>';
 851
 852                 return $ret;
 853         }
 854
 855         /**
 856          * This gets called shortly before the </body> tag.
 857          * @param $out OutputPage object
 858          * @return String HTML-wrapped JS code to be put before </body>
 859          */
 860         function bottomScripts( $out ) {
 861                 $bottomScriptText = "\n" . $out->getHeadScripts( $this );
 862                 wfRunHooks( 'SkinAfterBottomScripts', array( $this, &$bottomScriptText ) );
 863
 864                 return $bottomScriptText;
 865         }
 866
 867         /** @return string Retrievied from HTML text */
 868         function printSource() {
 869                 $url = htmlspecialchars( $this->mTitle->getFullURL() );
 870                 return wfMsg( 'retrievedfrom', '<a href="' . $url . '">' . $url . '</a>' );
 871         }
 872
 873         function getUndeleteLink() {
 874                 global $wgUser, $wgLang, $wgRequest;
 875
 876                 $action = $wgRequest->getVal( 'action', 'view' );
 877
 878                 if ( $wgUser->isAllowed( 'deletedhistory' ) &&
 879                         ( $this->mTitle->getArticleId() == 0 || $action == 'history' ) ) {
 880                         $n = $this->mTitle->isDeleted();
 881
 882                         if ( $n ) {
 883                                 if ( $wgUser->isAllowed( 'undelete' ) ) {
 884                                         $msg = 'thisisdeleted';
 885                                 } else {
 886                                         $msg = 'viewdeleted';
 887                                 }
 888
 889                                 return wfMsg(
 890                                         $msg,
 891                                         $this->link(
 892                                                 SpecialPage::getTitleFor( 'Undelete', $this->mTitle->getPrefixedDBkey() ),
 893                                                 wfMsgExt( 'restorelink', array( 'parsemag', 'escape' ), $wgLang->formatNum( $n ) ),
 894                                                 array(),
 895                                                 array(),
 896                                                 array( 'known', 'noclasses' )
 897                                         )
 898                                 );
 899                         }
 900                 }
 901
 902                 return '';
 903         }
 904
 905         function subPageSubtitle() {
 906                 $subpages = '';
 907
 908                 if ( !wfRunHooks( 'SkinSubPageSubtitle', array( &$subpages, $this ) ) ) {
 909                         return $subpages;
 910                 }
 911
 912                 global $wgOut;
 913
 914                 if ( $wgOut->isArticle() && MWNamespace::hasSubpages( $this->mTitle->getNamespace() ) ) {
 915                         $ptext = $this->mTitle->getPrefixedText();
 916                         if ( preg_match( '/\//', $ptext ) ) {
 917                                 $links = explode( '/', $ptext );
 918                                 array_pop( $links );
 919                                 $c = 0;
 920                                 $growinglink = '';
 921                                 $display = '';
 922
 923                                 foreach ( $links as $link ) {
 924                                         $growinglink .= $link;
 925                                         $display .= $link;
 926                                         $linkObj = Title::newFromText( $growinglink );
 927
 928                                         if ( is_object( $linkObj ) && $linkObj->exists() ) {
 929                                                 $getlink = $this->link(
 930                                                         $linkObj,
 931                                                         htmlspecialchars( $display ),
 932                                                         array(),
 933                                                         array(),
 934                                                         array( 'known', 'noclasses' )
 935                                                 );
 936
 937                                                 $c++;
 938
 939                                                 if ( $c > 1 ) {
 940                                                         $subpages .= wfMsgExt( 'pipe-separator', 'escapenoentities' );
 941                                                 } else  {
 942                                                         $subpages .= '&lt; ';
 943                                                 }
 944
 945                                                 $subpages .= $getlink;
 946                                                 $display = '';
 947                                         } else {
 948                                                 $display .= '/';
 949                                         }
 950                                         $growinglink .= '/';
 951                                 }
 952                         }
 953                 }
 954
 955                 return $subpages;
 956         }
 957
 958         /**
 959          * Returns true if the IP should be shown in the header
 960          */
 961         function showIPinHeader() {
 962                 global $wgShowIPinHeader;
 963                 return $wgShowIPinHeader && session_id() != '';
 964         }
 965
 966         function getSearchLink() {
 967                 $searchPage = SpecialPage::getTitleFor( 'Search' );
 968                 return $searchPage->getLocalURL();
 969         }
 970
 971         function escapeSearchLink() {
 972                 return htmlspecialchars( $this->getSearchLink() );
 973         }
 974
 975         function getCopyright( $type = 'detect' ) {
 976                 global $wgRightsPage, $wgRightsUrl, $wgRightsText, $wgRequest;
 977
 978                 if ( $type == 'detect' ) {
 979                         $diff = $wgRequest->getVal( 'diff' );
 980
 981                         if ( is_null( $diff ) && !$this->isRevisionCurrent() && wfMsgForContent( 'history_copyright' ) !== '-' ) {
 982                                 $type = 'history';
 983                         } else {
 984                                 $type = 'normal';
 985                         }
 986                 }
 987
 988                 if ( $type == 'history' ) {
 989                         $msg = 'history_copyright';
 990                 } else {
 991                         $msg = 'copyright';
 992                 }
 993
 994                 $out = '';
 995
 996                 if ( $wgRightsPage ) {
 997                         $title = Title::newFromText( $wgRightsPage );
 998                         $link = $this->linkKnown( $title, $wgRightsText );
 999                 } elseif ( $wgRightsUrl ) {
1000                         $link = $this->makeExternalLink( $wgRightsUrl, $wgRightsText );
1001                 } elseif ( $wgRightsText ) {
1002                         $link = $wgRightsText;
1003                 } else {
1004                         # Give up now
1005                         return $out;
1006                 }
1007
1008                 // Allow for site and per-namespace customization of copyright notice.
1009                 $forContent = true;
1010
1011                 wfRunHooks( 'SkinCopyrightFooter', array( $this->mTitle, $type, &$msg, &$link, &$forContent ) );
1012
1013                 if ( $forContent ) {
1014                         $out .= wfMsgForContent( $msg, $link );
1015                 } else {
1016                         $out .= wfMsg( $msg, $link );
1017                 }
1018
1019                 return $out;
1020         }
1021
1022         function getCopyrightIcon() {
1023                 global $wgRightsUrl, $wgRightsText, $wgRightsIcon, $wgCopyrightIcon;
1024
1025                 $out = '';
1026
1027                 if ( isset( $wgCopyrightIcon ) && $wgCopyrightIcon ) {
1028                         $out = $wgCopyrightIcon;
1029                 } elseif ( $wgRightsIcon ) {
1030                         $icon = htmlspecialchars( $wgRightsIcon );
1031
1032                         if ( $wgRightsUrl ) {
1033                                 $url = htmlspecialchars( $wgRightsUrl );
1034                                 $out .= '<a href="' . $url . '">';
1035                         }
1036
1037                         $text = htmlspecialchars( $wgRightsText );
1038                         $out .= "<img src=\"$icon\" alt=\"$text\" width=\"88\" height=\"31\" />";
1039
1040                         if ( $wgRightsUrl ) {
1041                                 $out .= '</a>';
1042                         }
1043                 }
1044
1045                 return $out;
1046         }
1047
1048         /**
1049          * Gets the powered by MediaWiki icon.
1050          * @return string
1051          */
1052         function getPoweredBy() {
1053                 global $wgStylePath;
1054
1055                 $url = htmlspecialchars( "$wgStylePath/common/images/poweredby_mediawiki_88x31.png" );
1056                 $text = '<a href="http://www.mediawiki.org/"><img src="' . $url . '" height="31" width="88" alt="Powered by MediaWiki" /></a>';
1057                 wfRunHooks( 'SkinGetPoweredBy', array( &$text, $this ) );
1058                 return $text;
1059         }
1060
1061         /**
1062          * Get the timestamp of the latest revision, formatted in user language
1063          *
1064          * @param $article Article object. Used if we're working with the current revision
1065          * @return String
1066          */
1067         protected function lastModified( $article ) {
1068                 global $wgLang;
1069
1070                 if ( !$this->isRevisionCurrent() ) {
1071                         $timestamp = Revision::getTimestampFromId( $this->mTitle, $this->mRevisionId );
1072                 } else {
1073                         $timestamp = $article->getTimestamp();
1074                 }
1075
1076                 if ( $timestamp ) {
1077                         $d = $wgLang->date( $timestamp, true );
1078                         $t = $wgLang->time( $timestamp, true );
1079                         $s = ' ' . wfMsg( 'lastmodifiedat', $d, $t );
1080                 } else {
1081                         $s = '';
1082                 }
1083
1084                 if ( wfGetLB()->getLaggedSlaveMode() ) {
1085                         $s .= ' <strong>' . wfMsg( 'laggedslavemode' ) . '</strong>';
1086                 }
1087
1088                 return $s;
1089         }
1090
1091         function logoText( $align = '' ) {
1092                 if ( $align != '' ) {
1093                         $a = " align='{$align}'";
1094                 } else {
1095                         $a = '';
1096                 }
1097
1098                 $mp = wfMsg( 'mainpage' );
1099                 $mptitle = Title::newMainPage();
1100                 $url = ( is_object( $mptitle ) ? $mptitle->escapeLocalURL() : '' );
1101
1102                 $logourl = $this->getLogo();
1103                 $s = "<a href='{$url}'><img{$a} src='{$logourl}' alt='[{$mp}]' /></a>";
1104
1105                 return $s;
1106         }
1107
1108         /**
1109          * Renders a $wgFooterIcons icon acording to the method's arguments
1110          * @param $icon Array: The icon to build the html for, see $wgFooterIcons for the format of this array
1111          * @param $withImage Boolean: Whether to use the icon's image or output a text-only footericon
1112          */
1113         function makeFooterIcon( $icon, $withImage = 'withImage' ) {
1114                 if ( is_string( $icon ) ) {
1115                         $html = $icon;
1116                 } else { // Assuming array
1117                         $url = isset($icon["url"]) ? $icon["url"] : null;
1118                         unset( $icon["url"] );
1119                         if ( isset( $icon["src"] ) && $withImage === 'withImage' ) {
1120                                 $html = Html::element( 'img', $icon ); // do this the lazy way, just pass icon data as an attribute array
1121                         } else {
1122                                 $html = htmlspecialchars( $icon["alt"] );
1123                         }
1124                         if ( $url ) {
1125                                 $html = Html::rawElement( 'a', array( "href" => $url ), $html );
1126                         }
1127                 }
1128                 return $html;
1129         }
1130
1131         /**
1132          * Gets the link to the wiki's main page.
1133          * @return string
1134          */
1135         function mainPageLink() {
1136                 $s = $this->link(
1137                         Title::newMainPage(),
1138                         wfMsg( 'mainpage' ),
1139                         array(),
1140                         array(),
1141                         array( 'known', 'noclasses' )
1142                 );
1143
1144                 return $s;
1145         }
1146
1147         public function footerLink( $desc, $page ) {
1148                 // if the link description has been set to "-" in the default language,
1149                 if ( wfMsgForContent( $desc )  == '-' ) {
1150                         // then it is disabled, for all languages.
1151                         return '';
1152                 } else {
1153                         // Otherwise, we display the link for the user, described in their
1154                         // language (which may or may not be the same as the default language),
1155                         // but we make the link target be the one site-wide page.
1156                         $title = Title::newFromText( wfMsgForContent( $page ) );
1157
1158                         return $this->linkKnown(
1159                                 $title,
1160                                 wfMsgExt( $desc, array( 'parsemag', 'escapenoentities' ) )
1161                         );
1162                 }
1163         }
1164
1165         /**
1166          * Gets the link to the wiki's privacy policy page.
1167          */
1168         function privacyLink() {
1169                 return $this->footerLink( 'privacy', 'privacypage' );
1170         }
1171
1172         /**
1173          * Gets the link to the wiki's about page.
1174          */
1175         function aboutLink() {
1176                 return $this->footerLink( 'aboutsite', 'aboutpage' );
1177         }
1178
1179         /**
1180          * Gets the link to the wiki's general disclaimers page.
1181          */
1182         function disclaimerLink() {
1183                 return $this->footerLink( 'disclaimers', 'disclaimerpage' );
1184         }
1185
1186         /**
1187          * Return URL options for the 'edit page' link.
1188          * This may include an 'oldid' specifier, if the current page view is such.
1189          *
1190          * @return array
1191          * @private
1192          */
1193         function editUrlOptions() {
1194                 $options = array( 'action' => 'edit' );
1195
1196                 if ( !$this->isRevisionCurrent() ) {
1197                         $options['oldid'] = intval( $this->mRevisionId );
1198                 }
1199
1200                 return $options;
1201         }
1202
1203         function showEmailUser( $id ) {
1204                 global $wgUser;
1205                 $targetUser = User::newFromId( $id );
1206                 return $wgUser->canSendEmail() && # the sending user must have a confirmed email address
1207                         $targetUser->canReceiveEmail(); # the target user must have a confirmed email address and allow emails from users
1208         }
1209
1210         /**
1211          * Return a fully resolved style path url to images or styles stored in the common folder.
1212          * This method returns a url resolved using the configured skin style path
1213          * and includes the style version inside of the url.
1214          * @param $name String: The name or path of a skin resource file
1215          * @return String The fully resolved style path url including styleversion
1216          */
1217         function getCommonStylePath( $name ) {
1218                 global $wgStylePath, $wgStyleVersion;
1219                 return "$wgStylePath/common/$name?$wgStyleVersion";
1220         }
1221
1222         /**
1223          * Return a fully resolved style path url to images or styles stored in the curent skins's folder.
1224          * This method returns a url resolved using the configured skin style path
1225          * and includes the style version inside of the url.
1226          * @param $name String: The name or path of a skin resource file
1227          * @return String The fully resolved style path url including styleversion
1228          */
1229         function getSkinStylePath( $name ) {
1230                 global $wgStylePath, $wgStyleVersion;
1231                 return "$wgStylePath/{$this->stylename}/$name?$wgStyleVersion";
1232         }
1233
1234         /* these are used extensively in SkinTemplate, but also some other places */
1235         static function makeMainPageUrl( $urlaction = '' ) {
1236                 $title = Title::newMainPage();
1237                 self::checkTitle( $title, '' );
1238
1239                 return $title->getLocalURL( $urlaction );
1240         }
1241
1242         static function makeSpecialUrl( $name, $urlaction = '' ) {
1243                 $title = SpecialPage::getTitleFor( $name );
1244                 return $title->getLocalURL( $urlaction );
1245         }
1246
1247         static function makeSpecialUrlSubpage( $name, $subpage, $urlaction = '' ) {
1248                 $title = SpecialPage::getSafeTitleFor( $name, $subpage );
1249                 return $title->getLocalURL( $urlaction );
1250         }
1251
1252         static function makeI18nUrl( $name, $urlaction = '' ) {
1253                 $title = Title::newFromText( wfMsgForContent( $name ) );
1254                 self::checkTitle( $title, $name );
1255                 return $title->getLocalURL( $urlaction );
1256         }
1257
1258         static function makeUrl( $name, $urlaction = '' ) {
1259                 $title = Title::newFromText( $name );
1260                 self::checkTitle( $title, $name );
1261
1262                 return $title->getLocalURL( $urlaction );
1263         }
1264
1265         /**
1266          * If url string starts with http, consider as external URL, else
1267          * internal
1268          */
1269         static function makeInternalOrExternalUrl( $name ) {
1270                 if ( preg_match( '/^(?:' . wfUrlProtocols() . ')/', $name ) ) {
1271                         return $name;
1272                 } else {
1273                         return self::makeUrl( $name );
1274                 }
1275         }
1276
1277         # this can be passed the NS number as defined in Language.php
1278         static function makeNSUrl( $name, $urlaction = '', $namespace = NS_MAIN ) {
1279                 $title = Title::makeTitleSafe( $namespace, $name );
1280                 self::checkTitle( $title, $name );
1281
1282                 return $title->getLocalURL( $urlaction );
1283         }
1284
1285         /* these return an array with the 'href' and boolean 'exists' */
1286         static function makeUrlDetails( $name, $urlaction = '' ) {
1287                 $title = Title::newFromText( $name );
1288                 self::checkTitle( $title, $name );
1289
1290                 return array(
1291                         'href' => $title->getLocalURL( $urlaction ),
1292                         'exists' => $title->getArticleID() != 0,
1293                 );
1294         }
1295
1296         /**
1297          * Make URL details where the article exists (or at least it's convenient to think so)
1298          */
1299         static function makeKnownUrlDetails( $name, $urlaction = '' ) {
1300                 $title = Title::newFromText( $name );
1301                 self::checkTitle( $title, $name );
1302
1303                 return array(
1304                         'href' => $title->getLocalURL( $urlaction ),
1305                         'exists' => true
1306                 );
1307         }
1308
1309         # make sure we have some title to operate on
1310         static function checkTitle( &$title, $name ) {
1311                 if ( !is_object( $title ) ) {
1312                         $title = Title::newFromText( $name );
1313                         if ( !is_object( $title ) ) {
1314                                 $title = Title::newFromText( '--error: link target missing--' );
1315                         }
1316                 }
1317         }
1318
1319         /**
1320          * Build an array that represents the sidebar(s), the navigation bar among them
1321          *
1322          * @return array
1323          */
1324         function buildSidebar() {
1325                 global $parserMemc, $wgEnableSidebarCache, $wgSidebarCacheExpiry;
1326                 global $wgLang;
1327                 wfProfileIn( __METHOD__ );
1328
1329                 $key = wfMemcKey( 'sidebar', $wgLang->getCode() );
1330
1331                 if ( $wgEnableSidebarCache ) {
1332                         $cachedsidebar = $parserMemc->get( $key );
1333                         if ( $cachedsidebar ) {
1334                                 wfProfileOut( __METHOD__ );
1335                                 return $cachedsidebar;
1336                         }
1337                 }
1338
1339                 $bar = array();
1340                 $this->addToSidebar( $bar, 'sidebar' );
1341
1342                 wfRunHooks( 'SkinBuildSidebar', array( $this, &$bar ) );
1343                 if ( $wgEnableSidebarCache ) {
1344                         $parserMemc->set( $key, $bar, $wgSidebarCacheExpiry );
1345                 }
1346
1347                 wfProfileOut( __METHOD__ );
1348                 return $bar;
1349         }
1350         /**
1351          * Add content from a sidebar system message
1352          * Currently only used for MediaWiki:Sidebar (but may be used by Extensions)
1353          *
1354          * This is just a wrapper around addToSidebarPlain() for backwards compatibility
1355          *
1356          * @param &$bar array
1357          * @param $message String
1358          */
1359         function addToSidebar( &$bar, $message ) {
1360                 $this->addToSidebarPlain( $bar, wfMsgForContent( $message ) );
1361         }
1362
1363         /**
1364          * Add content from plain text
1365          * @since 1.17
1366          * @param &$bar array
1367          * @param $text string
1368          */
1369         function addToSidebarPlain( &$bar, $text ) {
1370                 $lines = explode( "\n", $text );
1371                 $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.
1372
1373                 $heading = '';
1374
1375                 foreach ( $lines as $line ) {
1376                         if ( strpos( $line, '*' ) !== 0 ) {
1377                                 continue;
1378                         }
1379
1380                         if ( strpos( $line, '**' ) !== 0 ) {
1381                                 $heading = trim( $line, '* ' );
1382                                 if ( !array_key_exists( $heading, $bar ) ) {
1383                                         $bar[$heading] = array();
1384                                 }
1385                         } else {
1386                                 $line = trim( $line, '* ' );
1387
1388                                 if ( strpos( $line, '|' ) !== false ) { // sanity check
1389                                         $line = array_map( 'trim', explode( '|', $line, 2 ) );
1390                                         $link = wfMsgForContent( $line[0] );
1391
1392                                         if ( $link == '-' ) {
1393                                                 continue;
1394                                         }
1395
1396                                         $text = wfMsgExt( $line[1], 'parsemag' );
1397
1398                                         if ( wfEmptyMsg( $line[1], $text ) ) {
1399                                                 $text = $line[1];
1400                                         }
1401
1402                                         if ( wfEmptyMsg( $line[0], $link ) ) {
1403                                                 $link = $line[0];
1404                                         }
1405
1406                                         if ( preg_match( '/^(?:' . wfUrlProtocols() . ')/', $link ) ) {
1407                                                 $href = $link;
1408                                         } else {
1409                                                 $title = Title::newFromText( $link );
1410
1411                                                 if ( $title ) {
1412                                                         $title = $title->fixSpecialName();
1413                                                         $href = $title->getLocalURL();
1414                                                 } else {
1415                                                         $href = 'INVALID-TITLE';
1416                                                 }
1417                                         }
1418
1419                                         $bar[$heading][] = array(
1420                                                 'text' => $text,
1421                                                 'href' => $href,
1422                                                 'id' => 'n-' . strtr( $line[1], ' ', '-' ),
1423                                                 'active' => false
1424                                         );
1425                                 } else if ( ( substr( $line, 0, 2 ) == '{{' ) && ( substr( $line, -2 ) == '}}' ) ) {
1426                                         global $wgParser, $wgTitle;
1427
1428                                         $line = substr( $line, 2, strlen( $line ) - 4 );
1429
1430                                         $options = new ParserOptions();
1431                                         $options->setEditSection( false );
1432                                         $options->setInterfaceMessage( true );
1433                                         $wikiBar[$heading] = $wgParser->parse( wfMsgForContentNoTrans( $line ) , $wgTitle, $options )->getText();
1434                                 } else {
1435                                         continue;
1436                                 }
1437                         }
1438                 }
1439
1440                 if ( count( $wikiBar ) > 0 ) {
1441                         $bar = array_merge( $bar, $wikiBar );
1442                 }
1443
1444                 return $bar;
1445         }
1446
1447         /**
1448          * Should we include common/wikiprintable.css?  Skins that have their own
1449          * print stylesheet should override this and return false.  (This is an
1450          * ugly hack to get Monobook to play nicely with
1451          * OutputPage::headElement().)
1452          *
1453          * @return bool
1454          */
1455         public function commonPrintStylesheet() {
1456                 return true;
1457         }
1458
1459         /**
1460          * Gets new talk page messages for the current user.
1461          * @return MediaWiki message or if no new talk page messages, nothing
1462          */
1463         function getNewtalks() {
1464                 global $wgUser, $wgOut;
1465
1466                 $newtalks = $wgUser->getNewMessageLinks();
1467                 $ntl = '';
1468
1469                 if ( count( $newtalks ) == 1 && $newtalks[0]['wiki'] === wfWikiID() ) {
1470                         $userTitle = $this->mUser->getUserPage();
1471                         $userTalkTitle = $userTitle->getTalkPage();
1472
1473                         if ( !$userTalkTitle->equals( $this->mTitle ) ) {
1474                                 $newMessagesLink = $this->link(
1475                                         $userTalkTitle,
1476                                         wfMsgHtml( 'newmessageslink' ),
1477                                         array(),
1478                                         array( 'redirect' => 'no' ),
1479                                         array( 'known', 'noclasses' )
1480                                 );
1481
1482                                 $newMessagesDiffLink = $this->link(
1483                                         $userTalkTitle,
1484                                         wfMsgHtml( 'newmessagesdifflink' ),
1485                                         array(),
1486                                         array( 'diff' => 'cur' ),
1487                                         array( 'known', 'noclasses' )
1488                                 );
1489
1490                                 $ntl = wfMsg(
1491                                         'youhavenewmessages',
1492                                         $newMessagesLink,
1493                                         $newMessagesDiffLink
1494                                 );
1495                                 # Disable Squid cache
1496                                 $wgOut->setSquidMaxage( 0 );
1497                         }
1498                 } elseif ( count( $newtalks ) ) {
1499                         // _>" " for BC <= 1.16
1500                         $sep = str_replace( '_', ' ', wfMsgHtml( 'newtalkseparator' ) );
1501                         $msgs = array();
1502
1503                         foreach ( $newtalks as $newtalk ) {
1504                                 $msgs[] = Xml::element(
1505                                         'a',
1506                                         array( 'href' => $newtalk['link'] ), $newtalk['wiki']
1507                                 );
1508                         }
1509                         $parts = implode( $sep, $msgs );
1510                         $ntl = wfMsgHtml( 'youhavenewmessagesmulti', $parts );
1511                         $wgOut->setSquidMaxage( 0 );
1512                 }
1513
1514                 return $ntl;
1515         }
1516
1517         /**
1518          * Get a cached notice
1519          *
1520          * @param $name String: message name, or 'default' for $wgSiteNotice
1521          * @return String: HTML fragment
1522          */
1523         private function getCachedNotice( $name ) {
1524                 global $wgOut, $wgRenderHashAppend, $parserMemc;
1525
1526                 wfProfileIn( __METHOD__ );
1527
1528                 $needParse = false;
1529
1530                 if( $name === 'default' ) {
1531                         // special case
1532                         global $wgSiteNotice;
1533                         $notice = $wgSiteNotice;
1534                         if( empty( $notice ) ) {
1535                                 wfProfileOut( __METHOD__ );
1536                                 return false;
1537                         }
1538                 } else {
1539                         $msg = wfMessage( $name )->inContentLanguage();
1540                         if( $msg->isDisabled() ) {
1541                                 wfProfileOut( __METHOD__ );
1542                                 return false;
1543                         }
1544                         $notice = $msg->plain();
1545                 }
1546
1547                 // Use the extra hash appender to let eg SSL variants separately cache.
1548                 $key = wfMemcKey( $name . $wgRenderHashAppend );
1549                 $cachedNotice = $parserMemc->get( $key );
1550                 if( is_array( $cachedNotice ) ) {
1551                         if( md5( $notice ) == $cachedNotice['hash'] ) {
1552                                 $notice = $cachedNotice['html'];
1553                         } else {
1554                                 $needParse = true;
1555                         }
1556                 } else {
1557                         $needParse = true;
1558                 }
1559
1560                 if ( $needParse ) {
1561                         if( is_object( $wgOut ) ) {
1562                                 $parsed = $wgOut->parse( $notice );
1563                                 $parserMemc->set( $key, array( 'html' => $parsed, 'hash' => md5( $notice ) ), 600 );
1564                                 $notice = $parsed;
1565                         } else {
1566                                 wfDebug( 'wfGetCachedNotice called for ' . $name . ' with no $wgOut available' . "\n" );
1567                                 $notice = '';
1568                         }
1569                 }
1570
1571                 $notice = '<div id="localNotice">' .$notice . '</div>';
1572                 wfProfileOut( __METHOD__ );
1573                 return $notice;
1574         }
1575
1576         /**
1577          * Get a notice based on page's namespace
1578          *
1579          * @return String: HTML fragment
1580          */
1581         function getNamespaceNotice() {
1582                 wfProfileIn( __METHOD__ );
1583
1584                 $key = 'namespacenotice-' . $this->mTitle->getNsText();
1585                 $namespaceNotice = wfGetCachedNotice( $key );
1586                 if ( $namespaceNotice && substr( $namespaceNotice, 0, 7 ) != '<p>&lt;' ) {
1587                         $namespaceNotice = '<div id="namespacebanner">' . $namespaceNotice . '</div>';
1588                 } else {
1589                         $namespaceNotice = '';
1590                 }
1591
1592                 wfProfileOut( __METHOD__ );
1593                 return $namespaceNotice;
1594         }
1595
1596         /**
1597          * Get the site notice
1598          *
1599          * @return String: HTML fragment
1600          */
1601         function getSiteNotice() {
1602                 global $wgUser;
1603
1604                 wfProfileIn( __METHOD__ );
1605                 $siteNotice = '';
1606
1607                 if ( wfRunHooks( 'SiteNoticeBefore', array( &$siteNotice, $this ) ) ) {
1608                         if ( is_object( $wgUser ) && $wgUser->isLoggedIn() ) {
1609                                 $siteNotice = $this->getCachedNotice( 'sitenotice' );
1610                         } else {
1611                                 $anonNotice = $this->getCachedNotice( 'anonnotice' );
1612                                 if ( !$anonNotice ) {
1613                                         $siteNotice = $this->getCachedNotice( 'sitenotice' );
1614                                 } else {
1615                                         $siteNotice = $anonNotice;
1616                                 }
1617                         }
1618                         if ( !$siteNotice ) {
1619                                 $siteNotice = $this->getCachedNotice( 'default' );
1620                         }
1621                 }
1622
1623                 wfRunHooks( 'SiteNoticeAfter', array( &$siteNotice, $this ) );
1624                 wfProfileOut( __METHOD__ );
1625                 return $siteNotice;
1626 }
1627 }