includes/Skin.php

   1 <?php
   2 /**
   3  * @defgroup Skins Skins
   4  */
   5
   6 if ( ! defined( 'MEDIAWIKI' ) )
   7         die( 1 );
   8
   9 /**
  10  * The main skin class that provide methods and properties for all other skins.
  11  * This base class is also the "Standard" skin.
  12  *
  13  * See docs/skin.txt for more information.
  14  *
  15  * @ingroup Skins
  16  */
  17 class Skin extends Linker {
  18         /**#@+
  19          * @private
  20          */
  21         var $mWatchLinkNum = 0; // Appended to end of watch link id's
  22         // How many search boxes have we made?  Avoid duplicate id's.
  23         protected $searchboxes = '';
  24         /**#@-*/
  25         protected $mRevisionId; // The revision ID we're looking at, null if not applicable.
  26         protected $skinname = 'standard';
  27         // @fixme Should be protected :-\
  28         var $mTitle = null;
  29
  30         /** Constructor, call parent constructor */
  31         function Skin() { parent::__construct(); }
  32
  33         /**
  34          * Fetch the set of available skins.
  35          * @return array of strings
  36          * @static
  37          */
  38         static function getSkinNames() {
  39                 global $wgValidSkinNames;
  40                 static $skinsInitialised = false;
  41                 if ( !$skinsInitialised ) {
  42                         # Get a list of available skins
  43                         # Build using the regular expression '^(.*).php$'
  44                         # Array keys are all lower case, array value keep the case used by filename
  45                         #
  46                         wfProfileIn( __METHOD__ . '-init' );
  47                         global $wgStyleDirectory;
  48                         $skinDir = dir( $wgStyleDirectory );
  49
  50                         # while code from www.php.net
  51                         while( false !== ( $file = $skinDir->read() ) ) {
  52                                 // Skip non-PHP files, hidden files, and '.dep' includes
  53                                 $matches = array();
  54                                 if( preg_match( '/^([^.]*)\.php$/', $file, $matches ) ) {
  55                                         $aSkin = $matches[1];
  56                                         $wgValidSkinNames[strtolower($aSkin)] = $aSkin;
  57                                 }
  58                         }
  59                         $skinDir->close();
  60                         $skinsInitialised = true;
  61                         wfProfileOut( __METHOD__ . '-init' );
  62                 }
  63                 return $wgValidSkinNames;
  64         }
  65
  66         /**
  67          * Fetch the list of usable skins in regards to $wgSkipSkins.
  68          * Useful for Special:Preferences and other places where you
  69          * only want to show skins users _can_ use.
  70          * @return array of strings
  71          */
  72         public static function getUsableSkins() {
  73                 global $wgSkipSkins;
  74                 $usableSkins = self::getSkinNames();
  75                 foreach ( $wgSkipSkins as $skip ) {
  76                         unset( $usableSkins[$skip] );
  77                 }
  78                 return $usableSkins;
  79         }
  80
  81         /**
  82          * Normalize a skin preference value to a form that can be loaded.
  83          * If a skin can't be found, it will fall back to the configured
  84          * default (or the old 'Classic' skin if that's broken).
  85          * @param string $key
  86          * @return string
  87          * @static
  88          */
  89         static function normalizeKey( $key ) {
  90                 global $wgDefaultSkin;
  91                 $skinNames = Skin::getSkinNames();
  92
  93                 if( $key == '' ) {
  94                         // Don't return the default immediately;
  95                         // in a misconfiguration we need to fall back.
  96                         $key = $wgDefaultSkin;
  97                 }
  98
  99                 if( isset( $skinNames[$key] ) ) {
 100                         return $key;
 101                 }
 102
 103                 // Older versions of the software used a numeric setting
 104                 // in the user preferences.
 105                 $fallback = array(
 106                         0 => $wgDefaultSkin,
 107                         1 => 'nostalgia',
 108                         2 => 'cologneblue' );
 109
 110                 if( isset( $fallback[$key] ) ){
 111                         $key = $fallback[$key];
 112                 }
 113
 114                 if( isset( $skinNames[$key] ) ) {
 115                         return $key;
 116                 } else {
 117                         return 'monobook';
 118                 }
 119         }
 120
 121         /**
 122          * Factory method for loading a skin of a given type
 123          * @param string $key 'monobook', 'standard', etc
 124          * @return Skin
 125          * @static
 126          */
 127         static function &newFromKey( $key ) {
 128                 global $wgStyleDirectory;
 129
 130                 $key = Skin::normalizeKey( $key );
 131
 132                 $skinNames = Skin::getSkinNames();
 133                 $skinName = $skinNames[$key];
 134                 $className = 'Skin'.ucfirst($key);
 135
 136                 # Grab the skin class and initialise it.
 137                 if ( !class_exists( $className ) ) {
 138                         // Preload base classes to work around APC/PHP5 bug
 139                         $deps = "{$wgStyleDirectory}/{$skinName}.deps.php";
 140                         if( file_exists( $deps ) ) include_once( $deps );
 141                         require_once( "{$wgStyleDirectory}/{$skinName}.php" );
 142
 143                         # Check if we got if not failback to default skin
 144                         if( !class_exists( $className ) ) {
 145                                 # DO NOT die if the class isn't found. This breaks maintenance
 146                                 # scripts and can cause a user account to be unrecoverable
 147                                 # except by SQL manipulation if a previously valid skin name
 148                                 # is no longer valid.
 149                                 wfDebug( "Skin class does not exist: $className\n" );
 150                                 $className = 'SkinMonobook';
 151                                 require_once( "{$wgStyleDirectory}/MonoBook.php" );
 152                         }
 153                 }
 154                 $skin = new $className;
 155                 return $skin;
 156         }
 157
 158         /** @return string path to the skin stylesheet */
 159         function getStylesheet() {
 160                 return 'common/wikistandard.css';
 161         }
 162
 163         /** @return string skin name */
 164         public function getSkinName() {
 165                 return $this->skinname;
 166         }
 167
 168         function qbSetting() {
 169                 global $wgOut, $wgUser;
 170
 171                 if ( $wgOut->isQuickbarSuppressed() ) { return 0; }
 172                 $q = $wgUser->getOption( 'quickbar', 0 );
 173                 return $q;
 174         }
 175
 176         function initPage( OutputPage $out ) {
 177                 global $wgFavicon, $wgAppleTouchIcon;
 178
 179                 wfProfileIn( __METHOD__ );
 180
 181                 # Generally the order of the favicon and apple-touch-icon links
 182                 # should not matter, but Konqueror (3.5.9 at least) incorrectly
 183                 # uses whichever one appears later in the HTML source.  Make sure
 184                 # apple-touch-icon is specified first to avoid this.
 185                 if( false !== $wgAppleTouchIcon ) {
 186                         $out->addLink( array( 'rel' => 'apple-touch-icon', 'href' => $wgAppleTouchIcon ) );
 187                 }
 188
 189                 if( false !== $wgFavicon ) {
 190                         $out->addLink( array( 'rel' => 'shortcut icon', 'href' => $wgFavicon ) );
 191                 }
 192
 193                 # OpenSearch description link
 194                 $out->addLink( array(
 195                         'rel' => 'search',
 196                         'type' => 'application/opensearchdescription+xml',
 197                         'href' => wfScript( 'opensearch_desc' ),
 198                         'title' => wfMsgForContent( 'opensearch-desc' ),
 199                 ));
 200
 201                 $this->addMetadataLinks( $out );
 202
 203                 $this->mRevisionId = $out->mRevisionId;
 204
 205                 $this->preloadExistence();
 206
 207                 wfProfileOut( __METHOD__ );
 208         }
 209
 210         /**
 211          * Preload the existence of three commonly-requested pages in a single query
 212          */
 213         function preloadExistence() {
 214                 global $wgUser;
 215
 216                 // User/talk link
 217                 $titles = array( $wgUser->getUserPage(), $wgUser->getTalkPage() );
 218
 219                 // Other tab link
 220                 if ( $this->mTitle->getNamespace() == NS_SPECIAL ) {
 221                         // nothing
 222                 } elseif ( $this->mTitle->isTalkPage() ) {
 223                         $titles[] = $this->mTitle->getSubjectPage();
 224                 } else {
 225                         $titles[] = $this->mTitle->getTalkPage();
 226                 }
 227
 228                 $lb = new LinkBatch( $titles );
 229                 $lb->execute();
 230         }
 231
 232         function addMetadataLinks( OutputPage $out ) {
 233                 global $wgEnableDublinCoreRdf, $wgEnableCreativeCommonsRdf;
 234                 global $wgRightsPage, $wgRightsUrl;
 235
 236                 if( $out->isArticleRelated() ) {
 237                         # note: buggy CC software only reads first "meta" link
 238                         if( $wgEnableCreativeCommonsRdf ) {
 239                                 $out->addMetadataLink( array(
 240                                         'title' => 'Creative Commons',
 241                                         'type' => 'application/rdf+xml',
 242                                         'href' => $this->mTitle->getLocalURL( 'action=creativecommons' ) )
 243                                 );
 244                         }
 245                         if( $wgEnableDublinCoreRdf ) {
 246                                 $out->addMetadataLink( array(
 247                                         'title' => 'Dublin Core',
 248                                         'type' => 'application/rdf+xml',
 249                                         'href' => $this->mTitle->getLocalURL( 'action=dublincore' ) )
 250                                 );
 251                         }
 252                 }
 253                 $copyright = '';
 254                 if( $wgRightsPage ) {
 255                         $copy = Title::newFromText( $wgRightsPage );
 256                         if( $copy ) {
 257                                 $copyright = $copy->getLocalURL();
 258                         }
 259                 }
 260                 if( !$copyright && $wgRightsUrl ) {
 261                         $copyright = $wgRightsUrl;
 262                 }
 263                 if( $copyright ) {
 264                         $out->addLink( array(
 265                                 'rel' => 'copyright',
 266                                 'href' => $copyright )
 267                         );
 268                 }
 269         }
 270
 271         /**
 272          * Set some local variables
 273          */
 274         protected function setMembers(){
 275                 global $wgUser;
 276                 $this->mUser = $wgUser;
 277                 $this->userpage = $wgUser->getUserPage()->getPrefixedText();
 278                 $this->usercss = false;
 279         }
 280
 281         /**
 282          * Set the title
 283          * @param Title $t The title to use
 284          */
 285         public function setTitle( $t ) {
 286                 $this->mTitle = $t;
 287         }
 288
 289         /** Get the title */
 290         public function getTitle() {
 291                 return $this->mTitle;
 292         }
 293
 294         function outputPage( OutputPage $out ) {
 295                 global $wgDebugComments;
 296                 wfProfileIn( __METHOD__ );
 297
 298                 $this->setMembers();
 299                 $this->initPage( $out );
 300
 301                 // See self::afterContentHook() for documentation
 302                 $afterContent = $this->afterContentHook();
 303
 304                 $out->out( $out->headElement( $this ) );
 305
 306                 $out->out( "\n<body" );
 307                 $ops = $this->getBodyOptions();
 308                 foreach ( $ops as $name => $val ) {
 309                         $out->out( " $name='$val'" );
 310                 }
 311                 $out->out( ">\n" );
 312                 if ( $wgDebugComments ) {
 313                         $out->out( "<!-- Wiki debugging output:\n" .
 314                           $out->mDebugtext . "-->\n" );
 315                 }
 316
 317                 $out->out( $this->beforeContent() );
 318
 319                 $out->out( $out->mBodytext . "\n" );
 320
 321                 $out->out( $this->afterContent() );
 322
 323                 $out->out( $afterContent );
 324
 325                 $out->out( $this->bottomScripts() );
 326
 327                 $out->out( wfReportTime() );
 328
 329                 $out->out( "\n</body></html>" );
 330                 wfProfileOut( __METHOD__ );
 331         }
 332
 333         static function makeVariablesScript( $data ) {
 334                 global $wgJsMimeType;
 335
 336                 $r = array( "<script type=\"$wgJsMimeType\">/*<![CDATA[*/" );
 337                 foreach ( $data as $name => $value ) {
 338                         $encValue = Xml::encodeJsVar( $value );
 339                         $r[] = "var $name = $encValue;";
 340                 }
 341                 $r[] = "/*]]>*/</script>\n";
 342
 343                 return implode( "\n\t\t", $r );
 344         }
 345
 346         /**
 347          * Make a <script> tag containing global variables
 348          * @param array $data Associative array containing one element:
 349          *     skinname => the skin name
 350          * The odd calling convention is for backwards compatibility
 351          * @TODO @FIXME Make this not depend on $wgTitle!
 352          */
 353         static function makeGlobalVariablesScript( $data ) {
 354                 global $wgScript, $wgTitle, $wgStylePath, $wgUser;
 355                 global $wgArticlePath, $wgScriptPath, $wgServer, $wgContLang, $wgLang, $wgVariant;
 356                 global $wgCanonicalNamespaceNames, $wgOut, $wgArticle;
 357                 global $wgBreakFrames, $wgRequest, $wgVariantArticlePath, $wgActionPaths;
 358                 global $wgUseAjax, $wgAjaxWatch;
 359                 global $wgVersion, $wgEnableAPI, $wgEnableWriteAPI;
 360                 global $wgRestrictionTypes, $wgLivePreview;
 361                 global $wgMWSuggestTemplate, $wgDBname, $wgEnableMWSuggest;
 362
 363                 $ns = $wgTitle->getNamespace();
 364                 $nsname = isset( $wgCanonicalNamespaceNames[ $ns ] ) ? $wgCanonicalNamespaceNames[ $ns ] : $wgTitle->getNsText();
 365                 $separatorTransTable = $wgContLang->separatorTransformTable();
 366                 $separatorTransTable = $separatorTransTable ? $separatorTransTable : array();
 367                 $compactSeparatorTransTable = array(
 368                         implode( "\t", array_keys( $separatorTransTable ) ),
 369                         implode( "\t", $separatorTransTable ),
 370                 );
 371                 $digitTransTable = $wgContLang->digitTransformTable();
 372                 $digitTransTable = $digitTransTable ? $digitTransTable : array();
 373                 $compactDigitTransTable = array(
 374                         implode( "\t", array_keys( $digitTransTable ) ),
 375                         implode( "\t", $digitTransTable ),
 376                 );
 377
 378                 $vars = array(
 379                         'skin' => $data['skinname'],
 380                         'stylepath' => $wgStylePath,
 381                         'wgArticlePath' => $wgArticlePath,
 382                         'wgScriptPath' => $wgScriptPath,
 383                         'wgScript' => $wgScript,
 384                         'wgVariantArticlePath' => $wgVariantArticlePath,
 385                         'wgActionPaths' => (object)$wgActionPaths,
 386                         'wgServer' => $wgServer,
 387                         'wgCanonicalNamespace' => $nsname,
 388                         'wgCanonicalSpecialPageName' => SpecialPage::resolveAlias( $wgTitle->getDBkey() ),
 389                         'wgNamespaceNumber' => $wgTitle->getNamespace(),
 390                         'wgPageName' => $wgTitle->getPrefixedDBKey(),
 391                         'wgTitle' => $wgTitle->getText(),
 392                         'wgAction' => $wgRequest->getText( 'action', 'view' ),
 393                         'wgArticleId' => $wgTitle->getArticleId(),
 394                         'wgIsArticle' => $wgOut->isArticle(),
 395                         'wgUserName' => $wgUser->isAnon() ? NULL : $wgUser->getName(),
 396                         'wgUserGroups' => $wgUser->isAnon() ? NULL : $wgUser->getEffectiveGroups(),
 397                         'wgUserVariant' => $wgVariant->getCode(),
 398                         'wgUserLanguage' => $wgLang->getCode(),
 399                         'wgContentLanguage' => $wgContLang->getCode(),
 400                         'wgBreakFrames' => $wgBreakFrames,
 401                         'wgCurRevisionId' => isset( $wgArticle ) ? $wgArticle->getLatest() : 0,
 402                         'wgVersion' => $wgVersion,
 403                         'wgEnableAPI' => $wgEnableAPI,
 404                         'wgEnableWriteAPI' => $wgEnableWriteAPI,
 405                         'wgSeparatorTransformTable' => $compactSeparatorTransTable,
 406                         'wgDigitTransformTable' => $compactDigitTransTable,
 407                 );
 408                 if ( !( $wgContLang->hasVariants() ) ) {
 409                         unset( $vars['wgUserVariant'] );
 410                 }
 411
 412                 if( $wgUseAjax && $wgEnableMWSuggest && !$wgUser->getOption( 'disablesuggest', false ) ){
 413                         $vars['wgMWSuggestTemplate'] = SearchEngine::getMWSuggestTemplate();
 414                         $vars['wgDBname'] = $wgDBname;
 415                         $vars['wgSearchNamespaces'] = SearchEngine::userNamespaces( $wgUser );
 416                         $vars['wgMWSuggestMessages'] = array( wfMsg( 'search-mwsuggest-enabled' ), wfMsg( 'search-mwsuggest-disabled' ) );
 417                 }
 418
 419                 foreach( $wgRestrictionTypes as $type )
 420                         $vars['wgRestriction' . ucfirst( $type )] = $wgTitle->getRestrictions( $type );
 421
 422                 if ( $wgLivePreview && $wgUser->getOption( 'uselivepreview' ) ) {
 423                         $vars['wgLivepreviewMessageLoading'] = wfMsg( 'livepreview-loading' );
 424                         $vars['wgLivepreviewMessageReady']   = wfMsg( 'livepreview-ready' );
 425                         $vars['wgLivepreviewMessageFailed']  = wfMsg( 'livepreview-failed' );
 426                         $vars['wgLivepreviewMessageError']   = wfMsg( 'livepreview-error' );
 427                 }
 428
 429                 if ( $wgOut->isArticleRelated() && $wgUseAjax && $wgAjaxWatch && $wgUser->isLoggedIn() ) {
 430                         $msgs = (object)array();
 431                         foreach ( array( 'watch', 'unwatch', 'watching', 'unwatching' ) as $msgName ) {
 432                                 $msgs->{$msgName . 'Msg'} = wfMsg( $msgName );
 433                         }
 434                         $vars['wgAjaxWatch'] = $msgs;
 435                 }
 436
 437                 // Allow extensions to add their custom variables to the global JS variables
 438                 wfRunHooks( 'MakeGlobalVariablesScript', array( &$vars ) );
 439
 440                 return self::makeVariablesScript( $vars );
 441         }
 442
 443         function getHeadScripts( $allowUserJs ) {
 444                 global $wgStylePath, $wgUser, $wgJsMimeType, $wgStyleVersion;
 445
 446                 $vars = self::makeGlobalVariablesScript( array( 'skinname' => $this->getSkinName() ) );
 447
 448                 $r = array( "<script type=\"{$wgJsMimeType}\" src=\"{$wgStylePath}/common/wikibits.js?$wgStyleVersion\"></script>" );
 449                 global $wgUseSiteJs;
 450                 if( $wgUseSiteJs ) {
 451                         $jsCache = $wgUser->isLoggedIn() ? '&smaxage=0' : '';
 452                         $r[] = "<script type=\"$wgJsMimeType\" src=\"".
 453                                 htmlspecialchars( self::makeUrl( '-',
 454                                         "action=raw$jsCache&gen=js&useskin=" .
 455                                         urlencode( $this->getSkinName() ) ) ) .
 456                                 "\"><!-- site js --></script>";
 457                 }
 458                 if( $allowUserJs && $wgUser->isLoggedIn() ) {
 459                         $userpage = $wgUser->getUserPage();
 460                         $userjs = htmlspecialchars( self::makeUrl(
 461                                 $userpage->getPrefixedText().'/'.$this->getSkinName().'.js',
 462                                 'action=raw&ctype='.$wgJsMimeType ) );
 463                         $r[] = '<script type="'.$wgJsMimeType.'" src="'.$userjs."\"></script>";
 464                 }
 465                 return $vars . "\t\t" . implode ( "\n\t\t", $r );
 466         }
 467
 468         /**
 469          * To make it harder for someone to slip a user a fake
 470          * user-JavaScript or user-CSS preview, a random token
 471          * is associated with the login session. If it's not
 472          * passed back with the preview request, we won't render
 473          * the code.
 474          *
 475          * @param string $action
 476          * @return bool
 477          * @private
 478          */
 479         function userCanPreview( $action ) {
 480                 global $wgRequest, $wgUser;
 481
 482                 if( $action != 'submit' )
 483                         return false;
 484                 if( !$wgRequest->wasPosted() )
 485                         return false;
 486                 if( !$this->mTitle->userCanEditCssJsSubpage() )
 487                         return false;
 488                 return $wgUser->matchEditToken(
 489                         $wgRequest->getVal( 'wpEditToken' ) );
 490         }
 491
 492         /**
 493          * generated JavaScript action=raw&gen=js
 494          * This returns MediaWiki:Common.js and MediaWiki:[Skinname].js concate-
 495          * nated together.  For some bizarre reason, it does *not* return any
 496          * custom user JS from subpages.  Huh?
 497          *
 498          * There's absolutely no reason to have separate Monobook/Common JSes.
 499          * Any JS that cares can just check the skin variable generated at the
 500          * top.  For now Monobook.js will be maintained, but it should be consi-
 501          * dered deprecated.
 502          *
 503          * @return string
 504          */
 505         public function generateUserJs() {
 506                 global $wgStylePath;
 507
 508                 wfProfileIn( __METHOD__ );
 509
 510                 $s = "/* generated javascript */\n";
 511                 $s .= "var skin = '" . Xml::escapeJsString( $this->getSkinName() ) . "';\n";
 512                 $s .= "var stylepath = '" . Xml::escapeJsString( $wgStylePath ) . "';";
 513                 $s .= "\n\n/* MediaWiki:Common.js */\n";
 514                 $commonJs = wfMsgForContent( 'common.js' );
 515                 if ( !wfEmptyMsg( 'common.js', $commonJs ) ) {
 516                         $s .= $commonJs;
 517                 }
 518
 519                 $s .= "\n\n/* MediaWiki:".ucfirst( $this->getSkinName() ).".js */\n";
 520                 // avoid inclusion of non defined user JavaScript (with custom skins only)
 521                 // by checking for default message content
 522                 $msgKey = ucfirst( $this->getSkinName() ).'.js';
 523                 $userJS = wfMsgForContent( $msgKey );
 524                 if ( !wfEmptyMsg( $msgKey, $userJS ) ) {
 525                         $s .= $userJS;
 526                 }
 527
 528                 wfProfileOut( __METHOD__ );
 529                 return $s;
 530         }
 531
 532         /**
 533          * Generate user stylesheet for action=raw&gen=css
 534          */
 535         public function generateUserStylesheet() {
 536                 wfProfileIn( __METHOD__ );
 537                 $s = "/* generated user stylesheet */\n" .
 538                         $this->reallyGenerateUserStylesheet();
 539                 wfProfileOut( __METHOD__ );
 540                 return $s;
 541         }
 542
 543         /**
 544          * Split for easier subclassing in SkinSimple, SkinStandard and SkinCologneBlue
 545          */
 546         protected function reallyGenerateUserStylesheet(){
 547                 global $wgUser;
 548                 $s = '';
 549                 if( ( $undopt = $wgUser->getOption( 'underline' ) ) < 2 ) {
 550                         $underline = $undopt ? 'underline' : 'none';
 551                         $s .= "a { text-decoration: $underline; }\n";
 552                 }
 553                 if( $wgUser->getOption( 'highlightbroken' ) ) {
 554                         $s .= "a.new, #quickbar a.new { color: #CC2200; }\n";
 555                 } else {
 556                         $s .= <<<END
 557 a.new, #quickbar a.new,
 558 a.stub, #quickbar a.stub {
 559         color: inherit;
 560 }
 561 a.new:after, #quickbar a.new:after {
 562         content: "?";
 563         color: #CC2200;
 564 }
 565 a.stub:after, #quickbar a.stub:after {
 566         content: "!";
 567         color: #772233;
 568 }
 569 END;
 570                 }
 571                 if( $wgUser->getOption( 'justify' ) ) {
 572                         $s .= "#article, #bodyContent, #mw_content { text-align: justify; }\n";
 573                 }
 574                 if( !$wgUser->getOption( 'showtoc' ) ) {
 575                         $s .= "#toc { display: none; }\n";
 576                 }
 577                 if( !$wgUser->getOption( 'editsection' ) ) {
 578                         $s .= ".editsection { display: none; }\n";
 579                 }
 580                 return $s;
 581         }
 582
 583         /**
 584          * @private
 585          */
 586         function setupUserCss( OutputPage $out ) {
 587                 global $wgRequest, $wgContLang, $wgUser;
 588                 global $wgAllowUserCss, $wgUseSiteCss, $wgSquidMaxage, $wgStylePath;
 589
 590                 wfProfileIn( __METHOD__ );
 591
 592                 $this->setupSkinUserCss( $out );
 593
 594                 $siteargs = array(
 595                         'action' => 'raw',
 596                         'maxage' => $wgSquidMaxage,
 597                 );
 598
 599                 // Add any extension CSS
 600                 foreach( $out->getExtStyle() as $tag ) {
 601                         $out->addStyle( $tag['href'] );
 602                 }
 603
 604                 // If we use the site's dynamic CSS, throw that in, too
 605                 // Per-site custom styles
 606                 if( $wgUseSiteCss ) {
 607                         global $wgHandheldStyle;
 608                         $query = wfArrayToCGI( array(
 609                                 'usemsgcache' => 'yes',
 610                                 'ctype' => 'text/css',
 611                                 'smaxage' => $wgSquidMaxage
 612                         ) + $siteargs );
 613                         # Site settings must override extension css! (bug 15025)
 614                         $out->addStyle( self::makeNSUrl( 'Common.css', $query, NS_MEDIAWIKI ) );
 615                         $out->addStyle( self::makeNSUrl( 'Print.css', $query, NS_MEDIAWIKI ), 'print' );
 616                         if( $wgHandheldStyle ) {
 617                                 $out->addStyle( self::makeNSUrl( 'Handheld.css', $query, NS_MEDIAWIKI ), 'handheld' );
 618                         }
 619                         $out->addStyle( self::makeNSUrl( $this->getSkinName() . '.css', $query, NS_MEDIAWIKI ) );
 620                 }
 621
 622                 if( $wgUser->isLoggedIn() ) {
 623                         // Ensure that logged-in users' generated CSS isn't clobbered
 624                         // by anons' publicly cacheable generated CSS.
 625                         $siteargs['smaxage'] = '0';
 626                         $siteargs['ts'] = $wgUser->mTouched;
 627                 }
 628                 // Per-user styles based on preferences
 629                 $siteargs['gen'] = 'css';
 630                 if( ( $us = $wgRequest->getVal( 'useskin', '' ) ) !== '' ) {
 631                         $siteargs['useskin'] = $us;
 632                 }
 633                 $out->addStyle( self::makeUrl( '-', wfArrayToCGI( $siteargs ) ) );
 634
 635                 // Per-user custom style pages
 636                 if( $wgAllowUserCss && $wgUser->isLoggedIn() ) {
 637                         $action = $wgRequest->getVal( 'action' );
 638                         # If we're previewing the CSS page, use it
 639                         if( $this->mTitle->isCssSubpage() && $this->userCanPreview( $action ) ) {
 640                                 $previewCss = $wgRequest->getText( 'wpTextbox1' );
 641                                 // @FIXME: properly escape the cdata!
 642                                 $this->usercss = "/*<![CDATA[*/\n" . $previewCss . "/*]]>*/";
 643                         } else {
 644                                 $out->addStyle( self::makeUrl( $this->userpage . '/' . $this->getSkinName() .'.css',
 645                                         'action=raw&ctype=text/css' ) );
 646                         }
 647                 }
 648
 649                 wfProfileOut( __METHOD__ );
 650         }
 651
 652         /**
 653          * Add skin specific stylesheets
 654          * @param $out OutputPage
 655          */
 656         function setupSkinUserCss( OutputPage $out ) {
 657                 $out->addStyle( 'common/shared.css' );
 658                 $out->addStyle( 'common/oldshared.css' );
 659                 $out->addStyle( $this->getStylesheet() );
 660                 $out->addStyle( 'common/common_rtl.css', '', '', 'rtl' );
 661         }
 662
 663         function getBodyOptions() {
 664                 global $wgUser, $wgOut, $wgRequest, $wgContLang;
 665
 666                 extract( $wgRequest->getValues( 'oldid', 'redirect', 'diff' ) );
 667
 668                 if ( 0 != $this->mTitle->getNamespace() ) {
 669                         $a = array( 'bgcolor' => '#ffffec' );
 670                 }
 671                 else $a = array( 'bgcolor' => '#FFFFFF' );
 672                 if( $wgOut->isArticle() && $wgUser->getOption( 'editondblclick' ) &&
 673                   $this->mTitle->quickUserCan( 'edit' ) ) {
 674                         $s = $this->mTitle->getFullURL( $this->editUrlOptions() );
 675                         $s = 'document.location = "' .Xml::escapeJsString( $s ) .'";';
 676                         $a += array( 'ondblclick' => $s );
 677                 }
 678                 $a['onload'] = $wgOut->getOnloadHandler();
 679                 $a['class'] =
 680                         'mediawiki' .
 681                         ' '.( $wgContLang->isRTL() ? 'rtl' : 'ltr' ).
 682                         ' '.$this->getPageClasses( $this->mTitle ) .
 683                         ' skin-'. Sanitizer::escapeClass( $this->getSkinName() );
 684                 return $a;
 685         }
 686
 687         function getPageClasses( $title ) {
 688                 $numeric = 'ns-'.$title->getNamespace();
 689                 if( $title->getNamespace() == NS_SPECIAL ) {
 690                         $type = 'ns-special';
 691                 } elseif( $title->isTalkPage() ) {
 692                         $type = 'ns-talk';
 693                 } else {
 694                         $type = 'ns-subject';
 695                 }
 696                 $name = Sanitizer::escapeClass( 'page-'.$title->getPrefixedText() );
 697                 return "$numeric $type $name";
 698         }
 699
 700         /**
 701          * URL to the logo
 702          */
 703         function getLogo() {
 704                 global $wgLogo;
 705                 return $wgLogo;
 706         }
 707
 708         /**
 709          * This will be called immediately after the <body> tag.  Split into
 710          * two functions to make it easier to subclass.
 711          */
 712         function beforeContent() {
 713                 return $this->doBeforeContent();
 714         }
 715
 716         function doBeforeContent() {
 717                 global $wgContLang;
 718                 wfProfileIn( __METHOD__ );
 719
 720                 $s = '';
 721                 $qb = $this->qbSetting();
 722
 723                 if( $langlinks = $this->otherLanguages() ) {
 724                         $rows = 2;
 725                         $borderhack = '';
 726                 } else {
 727                         $rows = 1;
 728                         $langlinks = false;
 729                         $borderhack = 'class="top"';
 730                 }
 731
 732                 $s .= "\n<div id='content'>\n<div id='topbar'>\n" .
 733                   "<table border='0' cellspacing='0' width='98%'>\n<tr>\n";
 734
 735                 $shove = ( $qb != 0 );
 736                 $left = ( $qb == 1 || $qb == 3 );
 737                 if( $wgContLang->isRTL() ) $left = !$left;
 738
 739                 if( !$shove ) {
 740                         $s .= "<td class='top' align='left' valign='top' rowspan='{$rows}'>\n" .
 741                           $this->logoText() . '</td>';
 742                 } elseif( $left ) {
 743                         $s .= $this->getQuickbarCompensator( $rows );
 744                 }
 745                 $l = $wgContLang->isRTL() ? 'right' : 'left';
 746                 $s .= "<td {$borderhack} align='$l' valign='top'>\n";
 747
 748                 $s .= $this->topLinks();
 749                 $s .= "<p class='subtitle'>" . $this->pageTitleLinks() . "</p>\n";
 750
 751                 $r = $wgContLang->isRTL() ? 'left' : 'right';
 752                 $s .= "</td>\n<td {$borderhack} valign='top' align='$r' nowrap='nowrap'>";
 753                 $s .= $this->nameAndLogin();
 754                 $s .= "\n<br />" . $this->searchForm() . "</td>";
 755
 756                 if ( $langlinks ) {
 757                         $s .= "</tr>\n<tr>\n<td class='top' colspan=\"2\">$langlinks</td>\n";
 758                 }
 759
 760                 if ( $shove && !$left ) { # Right
 761                         $s .= $this->getQuickbarCompensator( $rows );
 762                 }
 763                 $s .= "</tr>\n</table>\n</div>\n";
 764                 $s .= "\n<div id='article'>\n";
 765
 766                 $notice = wfGetSiteNotice();
 767                 if( $notice ) {
 768                         $s .= "\n<div id='siteNotice'>$notice</div>\n";
 769                 }
 770                 $s .= $this->pageTitle();
 771                 $s .= $this->pageSubtitle();
 772                 $s .= $this->getCategories();
 773                 wfProfileOut( __METHOD__ );
 774                 return $s;
 775         }
 776
 777
 778         function getCategoryLinks() {
 779                 global $wgOut, $wgUseCategoryBrowser;
 780                 global $wgContLang, $wgUser;
 781
 782                 if( count( $wgOut->mCategoryLinks ) == 0 ) return '';
 783
 784                 # Separator
 785                 $sep = wfMsgExt( 'catseparator', array( 'parsemag', 'escapenoentities' ) );
 786
 787                 // Use Unicode bidi embedding override characters,
 788                 // to make sure links don't smash each other up in ugly ways.
 789                 $dir = $wgContLang->isRTL() ? 'rtl' : 'ltr';
 790                 $embed = "<span dir='$dir'>";
 791                 $pop = '</span>';
 792
 793                 $allCats = $wgOut->getCategoryLinks();
 794                 $s = '';
 795                 $colon = wfMsgExt( 'colon-separator', 'escapenoentities' );
 796                 if ( !empty( $allCats['normal'] ) ) {
 797                         $t = $embed . implode( "{$pop} {$sep} {$embed}" , $allCats['normal'] ) . $pop;
 798
 799                         $msg = wfMsgExt( 'pagecategories', array( 'parsemag', 'escapenoentities' ), count( $allCats['normal'] ) );
 800                         $s .= '<div id="mw-normal-catlinks">' .
 801                                 $this->link( Title::newFromText( wfMsgForContent( 'pagecategorieslink' ) ), $msg )
 802                                 . $colon . $t . '</div>';
 803                 }
 804
 805                 # Hidden categories
 806                 if ( isset( $allCats['hidden'] ) ) {
 807                         if ( $wgUser->getBoolOption( 'showhiddencats' ) ) {
 808                                 $class ='mw-hidden-cats-user-shown';
 809                         } elseif ( $this->mTitle->getNamespace() == NS_CATEGORY ) {
 810                                 $class = 'mw-hidden-cats-ns-shown';
 811                         } else {
 812                                 $class = 'mw-hidden-cats-hidden';
 813                         }
 814                         $s .= "<div id=\"mw-hidden-catlinks\" class=\"$class\">" .
 815                                 wfMsgExt( 'hidden-categories', array( 'parsemag', 'escapenoentities' ), count( $allCats['hidden'] ) ) .
 816                                 $colon . $embed . implode( "$pop $sep $embed", $allCats['hidden'] ) . $pop .
 817                                 "</div>";
 818                 }
 819
 820                 # optional 'dmoz-like' category browser. Will be shown under the list
 821                 # of categories an article belong to
 822                 if( $wgUseCategoryBrowser ){
 823                         $s .= '<br /><hr />';
 824
 825                         # get a big array of the parents tree
 826                         $parenttree = $this->mTitle->getParentCategoryTree();
 827                         # Skin object passed by reference cause it can not be
 828                         # accessed under the method subfunction drawCategoryBrowser
 829                         $tempout = explode( "\n", Skin::drawCategoryBrowser( $parenttree, $this ) );
 830                         # Clean out bogus first entry and sort them
 831                         unset( $tempout[0] );
 832                         asort( $tempout );
 833                         # Output one per line
 834                         $s .= implode( "<br />\n", $tempout );
 835                 }
 836
 837                 return $s;
 838         }
 839
 840         /**
 841          * Render the array as a serie of links.
 842          * @param $tree Array: categories tree returned by Title::getParentCategoryTree
 843          * @param &skin Object: skin passed by reference
 844          * @return String separated by &gt;, terminate with "\n"
 845          */
 846         function drawCategoryBrowser( $tree, &$skin ){
 847                 $return = '';
 848                 foreach( $tree as $element => $parent ) {
 849                         if( empty( $parent ) ) {
 850                                 # element start a new list
 851                                 $return .= "\n";
 852                         } else {
 853                                 # grab the others elements
 854                                 $return .= Skin::drawCategoryBrowser( $parent, $skin ) . ' &gt; ';
 855                         }
 856                         # add our current element to the list
 857                         $eltitle = Title::newFromText( $element );
 858                         $return .=  $skin->link( $eltitle, $eltitle->getText() );
 859                 }
 860                 return $return;
 861         }
 862
 863         function getCategories() {
 864                 $catlinks=$this->getCategoryLinks();
 865
 866                 $classes = 'catlinks';
 867
 868                 if( strpos( $catlinks, '<div id="mw-normal-catlinks">' ) === false &&
 869                         strpos( $catlinks, '<div id="mw-hidden-catlinks" class="mw-hidden-cats-hidden">' ) !== false ) {
 870                         $classes .= ' catlinks-allhidden';
 871                 }
 872
 873                 if( !empty( $catlinks ) ){
 874                         return "<div id='catlinks' class='$classes'>{$catlinks}</div>";
 875                 }
 876         }
 877
 878         function getQuickbarCompensator( $rows = 1 ) {
 879                 return "<td width='152' rowspan='{$rows}'>&nbsp;</td>";
 880         }
 881
 882         /**
 883          * This runs a hook to allow extensions placing their stuff after content
 884          * and article metadata (e.g. categories).
 885          * Note: This function has nothing to do with afterContent().
 886          *
 887          * This hook is placed here in order to allow using the same hook for all
 888          * skins, both the SkinTemplate based ones and the older ones, which directly
 889          * use this class to get their data.
 890          *
 891          * The output of this function gets processed in SkinTemplate::outputPage() for
 892          * the SkinTemplate based skins, all other skins should directly echo it.
 893          *
 894          * Returns an empty string by default, if not changed by any hook function.
 895          */
 896         protected function afterContentHook() {
 897                 $data = '';
 898
 899                 if( wfRunHooks( 'SkinAfterContent', array( &$data ) ) ){
 900                         // adding just some spaces shouldn't toggle the output
 901                         // of the whole <div/>, so we use trim() here
 902                         if( trim( $data ) != '' ){
 903                                 // Doing this here instead of in the skins to
 904                                 // ensure that the div has the same ID in all
 905                                 // skins
 906                                 $data = "<div id='mw-data-after-content'>\n" .
 907                                         "\t$data\n" .
 908                                         "</div>\n";
 909                         }
 910                 } else {
 911                         wfDebug( "Hook SkinAfterContent changed output processing.\n" );
 912                 }
 913
 914                 return $data;
 915         }
 916
 917         /**
 918          * Generate debug data HTML for displaying at the bottom of the main content
 919          * area.
 920          * @return String HTML containing debug data, if enabled (otherwise empty).
 921          */
 922         protected function generateDebugHTML() {
 923                 global $wgShowDebug, $wgOut;
 924                 if ( $wgShowDebug ) {
 925                         $listInternals = str_replace( "\n", "</li>\n<li>", htmlspecialchars( $wgOut->mDebugtext ) );
 926                         return "\n<hr>\n<strong>Debug data:</strong><ul style=\"font-family:monospace;\"><li>" .
 927                                 $listInternals . "</li></ul>\n";
 928                 }
 929                 return '';
 930         }
 931
 932         /**
 933          * This gets called shortly before the </body> tag.
 934          * @return String HTML to be put before </body>
 935          */
 936         function afterContent() {
 937                 $printfooter = "<div class=\"printfooter\">\n" . $this->printFooter() . "</div>\n";
 938                 return $printfooter . $this->generateDebugHTML() . $this->doAfterContent();
 939         }
 940
 941         /**
 942          * This gets called shortly before the </body> tag.
 943          * @return String HTML-wrapped JS code to be put before </body>
 944          */
 945         function bottomScripts() {
 946                 global $wgJsMimeType;
 947                 $bottomScriptText = "\n\t\t<script type=\"$wgJsMimeType\">if (window.runOnloadHook) runOnloadHook();</script>\n";
 948                 wfRunHooks( 'SkinAfterBottomScripts', array( $this, &$bottomScriptText ) );
 949                 return $bottomScriptText;
 950         }
 951
 952         /** @return string Retrievied from HTML text */
 953         function printSource() {
 954                 $url = htmlspecialchars( $this->mTitle->getFullURL() );
 955                 return wfMsg( 'retrievedfrom', '<a href="'.$url.'">'.$url.'</a>' );
 956         }
 957
 958         function printFooter() {
 959                 return "<p>" .  $this->printSource() .
 960                         "</p>\n\n<p>" . $this->pageStats() . "</p>\n";
 961         }
 962
 963         /** overloaded by derived classes */
 964         function doAfterContent() { return '</div></div>'; }
 965
 966         function pageTitleLinks() {
 967                 global $wgOut, $wgUser, $wgRequest, $wgLang;
 968
 969                 $oldid = $wgRequest->getVal( 'oldid' );
 970                 $diff = $wgRequest->getVal( 'diff' );
 971                 $action = $wgRequest->getText( 'action' );
 972
 973                 $s[] = $this->printableLink();
 974                 $disclaimer = $this->disclaimerLink(); # may be empty
 975                 if( $disclaimer ) {
 976                         $s[] = $disclaimer;
 977                 }
 978                 $privacy = $this->privacyLink(); # may be empty too
 979                 if( $privacy ) {
 980                         $s[] = $privacy;
 981                 }
 982
 983                 if ( $wgOut->isArticleRelated() ) {
 984                         if ( $this->mTitle->getNamespace() == NS_FILE ) {
 985                                 $name = $this->mTitle->getDBkey();
 986                                 $image = wfFindFile( $this->mTitle );
 987                                 if( $image ) {
 988                                         $link = htmlspecialchars( $image->getURL() );
 989                                         $style = $this->getInternalLinkAttributes( $link, $name );
 990                                         $s[] = "<a href=\"{$link}\"{$style}>{$name}</a>";
 991                                 }
 992                         }
 993                 }
 994                 if ( 'history' == $action || isset( $diff ) || isset( $oldid ) ) {
 995                         $s[] .= $this->link(
 996                                         $this->mTitle,
 997                                         wfMsg( 'currentrev' ),
 998                                         array(),
 999                                         array(),
1000                                         array( 'known', 'noclasses' )
1001                         );
1002                 }
1003
1004                 if ( $wgUser->getNewtalk() ) {
1005                         # do not show "You have new messages" text when we are viewing our
1006                         # own talk page
1007                         if( !$this->mTitle->equals( $wgUser->getTalkPage() ) ) {
1008                                 $tl = $this->link(
1009                                         $wgUser->getTalkPage(),
1010                                         wfMsgHtml( 'newmessageslink' ),
1011                                         array(),
1012                                         array( 'redirect' => 'no' ),
1013                                         array( 'known', 'noclasses' )
1014                                 );
1015
1016                                 $dl = $this->link(
1017                                         $wgUser->getTalkPage(),
1018                                         wfMsgHtml( 'newmessagesdifflink' ),
1019                                         array(),
1020                                         array( 'diff' => 'cur' ),
1021                                         array( 'known', 'noclasses' )
1022                                 );
1023                                 $s[] = '<strong>'. wfMsg( 'youhavenewmessages', $tl, $dl ) . '</strong>';
1024                                 # disable caching
1025                                 $wgOut->setSquidMaxage( 0 );
1026                                 $wgOut->enableClientCache( false );
1027                         }
1028                 }
1029
1030                 $undelete = $this->getUndeleteLink();
1031                 if( !empty( $undelete ) ) {
1032                         $s[] = $undelete;
1033                 }
1034                 return $wgLang->pipeList( $s );
1035         }
1036
1037         function getUndeleteLink() {
1038                 global $wgUser, $wgContLang, $wgLang, $wgRequest;
1039
1040                 $action = $wgRequest->getVal( 'action', 'view' );
1041
1042                 if ( $wgUser->isAllowed( 'deletedhistory' ) &&
1043                         ( $this->mTitle->getArticleId() == 0 || $action == 'history' ) ) {
1044                         $n = $this->mTitle->isDeleted();
1045                         if ( $n ) {
1046                                 if ( $wgUser->isAllowed( 'undelete' ) ) {
1047                                         $msg = 'thisisdeleted';
1048                                 } else {
1049                                         $msg = 'viewdeleted';
1050                                 }
1051                                 return wfMsg(
1052                                         $msg,
1053                                         $this->link(
1054                                                 SpecialPage::getTitleFor( 'Undelete', $this->mTitle->getPrefixedDBkey() ),
1055                                                 wfMsgExt( 'restorelink', array( 'parsemag', 'escape' ), $wgLang->formatNum( $n ) ),
1056                                                 array(),
1057                                                 array(),
1058                                                 array( 'known', 'noclasses' )
1059                                         )
1060                                 );
1061                         }
1062                 }
1063                 return '';
1064         }
1065
1066         function printableLink() {
1067                 global $wgOut, $wgFeedClasses, $wgRequest, $wgLang;
1068
1069                 $printurl = $wgRequest->escapeAppendQuery( 'printable=yes' );
1070
1071                 $s[] = "<a href=\"$printurl\" rel=\"alternate\">" . wfMsg( 'printableversion' ) . '</a>';
1072                 if( $wgOut->isSyndicated() ) {
1073                         foreach( $wgFeedClasses as $format => $class ) {
1074                                 $feedurl = $wgRequest->escapeAppendQuery( "feed=$format" );
1075                                 $s[] = "<a href=\"$feedurl\" rel=\"alternate\" type=\"application/{$format}+xml\""
1076                                                 . " class=\"feedlink\">" . wfMsgHtml( "feed-$format" ) . "</a>";
1077                         }
1078                 }
1079                 return $wgLang->pipeList( $s );
1080         }
1081
1082         function pageTitle() {
1083                 global $wgOut;
1084                 $s = '<h1 class="pagetitle">' . $wgOut->getPageTitle() . '</h1>';
1085                 return $s;
1086         }
1087
1088         function pageSubtitle() {
1089                 global $wgOut;
1090
1091                 $sub = $wgOut->getSubtitle();
1092                 if ( '' == $sub ) {
1093                         global $wgExtraSubtitle;
1094                         $sub = wfMsgExt( 'tagline', 'parsemag' ) . $wgExtraSubtitle;
1095                 }
1096                 $subpages = $this->subPageSubtitle();
1097                 $sub .= !empty( $subpages ) ? "</p><p class='subpages'>$subpages" : '';
1098                 $s = "<p class='subtitle'>{$sub}</p>\n";
1099                 return $s;
1100         }
1101
1102         function subPageSubtitle() {
1103                 $subpages = '';
1104                 if( !wfRunHooks( 'SkinSubPageSubtitle', array( &$subpages ) ) )
1105                         return $subpages;
1106
1107                 global $wgOut;
1108                 if( $wgOut->isArticle() && MWNamespace::hasSubpages( $this->mTitle->getNamespace() ) ) {
1109                         $ptext = $this->mTitle->getPrefixedText();
1110                         if( preg_match( '/\//', $ptext ) ) {
1111                                 $links = explode( '/', $ptext );
1112                                 array_pop( $links );
1113                                 $c = 0;
1114                                 $growinglink = '';
1115                                 $display = '';
1116                                 foreach( $links as $link ) {
1117                                         $growinglink .= $link;
1118                                         $display .= $link;
1119                                         $linkObj = Title::newFromText( $growinglink );
1120                                         if( is_object( $linkObj ) && $linkObj->exists() ){
1121                                                 $getlink = $this->link(
1122                                                         $linkObj,
1123                                                         htmlspecialchars( $display ),
1124                                                         array(),
1125                                                         array(),
1126                                                         array( 'known', 'noclasses' )
1127                                                 );
1128                                                 $c++;
1129                                                 if( $c > 1 ) {
1130                                                         $subpages .= wfMsgExt( 'pipe-separator', 'escapenoentities' );
1131                                                 } else  {
1132                                                         $subpages .= '&lt; ';
1133                                                 }
1134                                                 $subpages .= $getlink;
1135                                                 $display = '';
1136                                         } else {
1137                                                 $display .= '/';
1138                                         }
1139                                         $growinglink .= '/';
1140                                 }
1141                         }
1142                 }
1143                 return $subpages;
1144         }
1145
1146         /**
1147          * Returns true if the IP should be shown in the header
1148          */
1149         function showIPinHeader() {
1150                 global $wgShowIPinHeader;
1151                 return $wgShowIPinHeader && session_id() != '';
1152         }
1153
1154         function nameAndLogin() {
1155                 global $wgUser, $wgLang, $wgContLang;
1156
1157                 $logoutPage = $wgContLang->specialPage( 'Userlogout' );
1158
1159                 $ret = '';
1160                 if ( $wgUser->isAnon() ) {
1161                         if( $this->showIPinHeader() ) {
1162                                 $name = wfGetIP();
1163
1164                                 $talkLink = $this->link( $wgUser->getTalkPage(),
1165                                         $wgLang->getNsText( NS_TALK ) );
1166
1167                                 $ret .= "$name ($talkLink)";
1168                         } else {
1169                                 $ret .= wfMsg( 'notloggedin' );
1170                         }
1171
1172                         $returnTo = $this->mTitle->getPrefixedDBkey();
1173                         $query = array();
1174                         if ( $logoutPage != $returnTo ) {
1175                                 $query['returnto'] = $returnTo;
1176                         }
1177
1178                         $loginlink = $wgUser->isAllowed( 'createaccount' )
1179                                 ? 'nav-login-createaccount'
1180                                 : 'login';
1181                         $ret .= "\n<br />" . $this->link(
1182                                 SpecialPage::getTitleFor( 'Userlogin' ),
1183                                 wfMsg( $loginlink ), array(), $query
1184                         );
1185                 } else {
1186                         $returnTo = $this->mTitle->getPrefixedDBkey();
1187                         $talkLink = $this->link( $wgUser->getTalkPage(),
1188                                 $wgLang->getNsText( NS_TALK ) );
1189
1190                         $ret .= $this->link( $wgUser->getUserPage(),
1191                                 htmlspecialchars( $wgUser->getName() ) );
1192                         $ret .= " ($talkLink)<br />";
1193                         $ret .= $wgLang->pipeList( array(
1194                                 $this->link(
1195                                         SpecialPage::getTitleFor( 'Userlogout' ), wfMsg( 'logout' ),
1196                                         array(), array( 'returnto' => $returnTo )
1197                                 ),
1198                                 $this->specialLink( 'preferences' ),
1199                         ) );
1200                 }
1201                 $ret = $wgLang->pipeList( array(
1202                         $ret,
1203                         $this->link(
1204                                 Title::newFromText( wfMsgForContent( 'helppage' ) ),
1205                                 wfMsg( 'help' )
1206                         ),
1207                 ) );
1208
1209                 return $ret;
1210         }
1211
1212         function getSearchLink() {
1213                 $searchPage = SpecialPage::getTitleFor( 'Search' );
1214                 return $searchPage->getLocalURL();
1215         }
1216
1217         function escapeSearchLink() {
1218                 return htmlspecialchars( $this->getSearchLink() );
1219         }
1220
1221         function searchForm() {
1222                 global $wgRequest, $wgUseTwoButtonsSearchForm;
1223                 $search = $wgRequest->getText( 'search' );
1224
1225                 $s = '<form id="searchform'.$this->searchboxes.'" name="search" class="inline" method="post" action="'
1226                   . $this->escapeSearchLink() . "\">\n"
1227                   . '<input type="text" id="searchInput'.$this->searchboxes.'" name="search" size="19" value="'
1228                   . htmlspecialchars( substr( $search, 0, 256 ) ) . "\" />\n"
1229                   . '<input type="submit" name="go" value="' . wfMsg( 'searcharticle' ) . '" />';
1230
1231                 if( $wgUseTwoButtonsSearchForm )
1232                         $s .= '&nbsp;<input type="submit" name="fulltext" value="' . wfMsg( 'searchbutton' ) . "\" />\n";
1233                 else
1234                         $s .= ' <a href="' . $this->escapeSearchLink() . '" rel="search">' . wfMsg( 'powersearch-legend' ) . "</a>\n";
1235
1236                 $s .= '</form>';
1237
1238                 // Ensure unique id's for search boxes made after the first
1239                 $this->searchboxes = $this->searchboxes == '' ? 2 : $this->searchboxes + 1;
1240
1241                 return $s;
1242         }
1243
1244         function topLinks() {
1245                 global $wgOut;
1246
1247                 $s = array(
1248                         $this->mainPageLink(),
1249                         $this->specialLink( 'recentchanges' )
1250                 );
1251
1252                 if ( $wgOut->isArticleRelated() ) {
1253                         $s[] = $this->editThisPage();
1254                         $s[] = $this->historyLink();
1255                 }
1256                 # Many people don't like this dropdown box
1257                 #$s[] = $this->specialPagesList();
1258
1259                 if( $this->variantLinks() ) {
1260                         $s[] = $this->variantLinks();
1261                 }
1262
1263                 if( $this->extensionTabLinks() ) {
1264                         $s[] = $this->extensionTabLinks();
1265                 }
1266
1267                 // FIXME: Is using Language::pipeList impossible here? Do not quite understand the use of the newline
1268                 return implode( $s, wfMsgExt( 'pipe-separator', 'escapenoentities' ) . "\n" );
1269         }
1270
1271         /**
1272          * Compatibility for extensions adding functionality through tabs.
1273          * Eventually these old skins should be replaced with SkinTemplate-based
1274          * versions, sigh...
1275          * @return string
1276          */
1277         function extensionTabLinks() {
1278                 $tabs = array();
1279                 $out = '';
1280                 $s = array();
1281                 wfRunHooks( 'SkinTemplateTabs', array( $this, &$tabs ) );
1282                 foreach( $tabs as $tab ) {
1283                         $s[] = Xml::element( 'a',
1284                                 array( 'href' => $tab['href'] ),
1285                                 $tab['text'] );
1286                 }
1287
1288                 if( count( $s ) ) {
1289                         global $wgLang;
1290
1291                         $out = wfMsgExt( 'pipe-separator' , 'escapenoentities' );
1292                         $out .= $wgLang->pipeList( $s );
1293                 }
1294
1295                 return $out;
1296         }
1297
1298         /**
1299          * Language/charset variant links for classic-style skins
1300          * @return string
1301          */
1302         function variantLinks() {
1303                 $s = '';
1304                 /* show links to different language variants */
1305                 global $wgDisableLangConversion, $wgLang, $wgContLang;
1306                 $variants = $wgContLang->getVariants();
1307                 if( !$wgDisableLangConversion && sizeof( $variants ) > 1 ) {
1308                         foreach( $variants as $code ) {
1309                                 $varname = $wgContLang->getVariantname( $code );
1310                                 if( $varname == 'disable' )
1311                                         continue;
1312                                 $s = $wgLang->pipeList( array(
1313                                         $s,
1314                                         '<a href="' . $this->mTitle->escapeLocalUrl( 'variant=' . $code ) . '">' . htmlspecialchars( $varname ) . '</a>'
1315                                 ) );
1316                         }
1317                 }
1318                 return $s;
1319         }
1320
1321         function bottomLinks() {
1322                 global $wgOut, $wgUser, $wgUseTrackbacks;
1323                 $sep = wfMsgExt( 'pipe-separator', 'escapenoentities' ) . "\n";
1324
1325                 $s = '';
1326                 if ( $wgOut->isArticleRelated() ) {
1327                         $element[] = '<strong>' . $this->editThisPage() . '</strong>';
1328                         if ( $wgUser->isLoggedIn() ) {
1329                                 $element[] = $this->watchThisPage();
1330                         }
1331                         $element[] = $this->talkLink();
1332                         $element[] = $this->historyLink();
1333                         $element[] = $this->whatLinksHere();
1334                         $element[] = $this->watchPageLinksLink();
1335
1336                         if( $wgUseTrackbacks )
1337                                 $element[] = $this->trackbackLink();
1338
1339                         if ( $this->mTitle->getNamespace() == NS_USER
1340                             || $this->mTitle->getNamespace() == NS_USER_TALK ){
1341                                 $id = User::idFromName( $this->mTitle->getText() );
1342                                 $ip = User::isIP( $this->mTitle->getText() );
1343
1344                                 if( $id || $ip ) { # both anons and non-anons have contri list
1345                                         $element[] = $this->userContribsLink();
1346                                 }
1347                                 if( $this->showEmailUser( $id ) ) {
1348                                         $element[] = $this->emailUserLink();
1349                                 }
1350                         }
1351
1352                         $s = implode( $element, $sep );
1353
1354                         if ( $this->mTitle->getArticleId() ) {
1355                                 $s .= "\n<br />";
1356                                 if( $wgUser->isAllowed( 'delete' ) ) { $s .= $this->deleteThisPage(); }
1357                                 if( $wgUser->isAllowed( 'protect' ) ) { $s .= $sep . $this->protectThisPage(); }
1358                                 if( $wgUser->isAllowed( 'move' ) ) { $s .= $sep . $this->moveThisPage(); }
1359                         }
1360                         $s .= "<br />\n" . $this->otherLanguages();
1361                 }
1362
1363                 return $s;
1364         }
1365
1366         function pageStats() {
1367                 global $wgOut, $wgLang, $wgArticle, $wgRequest, $wgUser;
1368                 global $wgDisableCounters, $wgMaxCredits, $wgShowCreditsIfMax, $wgPageShowWatchingUsers;
1369
1370                 $oldid = $wgRequest->getVal( 'oldid' );
1371                 $diff = $wgRequest->getVal( 'diff' );
1372                 if ( ! $wgOut->isArticle() ) { return ''; }
1373                 if( !$wgArticle instanceOf Article ) { return ''; }
1374                 if ( isset( $oldid ) || isset( $diff ) ) { return ''; }
1375                 if ( 0 == $wgArticle->getID() ) { return ''; }
1376
1377                 $s = '';
1378                 if ( !$wgDisableCounters ) {
1379                         $count = $wgLang->formatNum( $wgArticle->getCount() );
1380                         if ( $count ) {
1381                                 $s = wfMsgExt( 'viewcount', array( 'parseinline' ), $count );
1382                         }
1383                 }
1384
1385                 if( $wgMaxCredits != 0 ){
1386                         $s .= ' ' . Credits::getCredits( $wgArticle, $wgMaxCredits, $wgShowCreditsIfMax );
1387                 } else {
1388                         $s .= $this->lastModified();
1389                 }
1390
1391                 if( $wgPageShowWatchingUsers && $wgUser->getOption( 'shownumberswatching' ) ) {
1392                         $dbr = wfGetDB( DB_SLAVE );
1393                         $res = $dbr->select( 'watchlist',
1394                                 array( 'COUNT(*) AS n' ),
1395                                 array( 'wl_title' => $dbr->strencode( $this->mTitle->getDBkey() ), 'wl_namespace' => $this->mTitle->getNamespace() ),
1396                                 __METHOD__
1397                         );
1398                         $x = $dbr->fetchObject( $res );
1399
1400                         $s .= ' ' . wfMsgExt( 'number_of_watching_users_pageview',
1401                                 array( 'parseinline' ), $wgLang->formatNum( $x->n )
1402                         );
1403                 }
1404
1405                 return $s . ' ' .  $this->getCopyright();
1406         }
1407
1408         function getCopyright( $type = 'detect' ) {
1409                 global $wgRightsPage, $wgRightsUrl, $wgRightsText, $wgRequest, $wgArticle;
1410
1411                 if ( $type == 'detect' ) {
1412                         $diff = $wgRequest->getVal( 'diff' );
1413                         $isCur = $wgArticle && $wgArticle->isCurrent();
1414                         if ( is_null( $diff ) && !$isCur && wfMsgForContent( 'history_copyright' ) !== '-' ) {
1415                                 $type = 'history';
1416                         } else {
1417                                 $type = 'normal';
1418                         }
1419                 }
1420
1421                 if ( $type == 'history' ) {
1422                         $msg = 'history_copyright';
1423                 } else {
1424                         $msg = 'copyright';
1425                 }
1426
1427                 $out = '';
1428                 if( $wgRightsPage ) {
1429                         $link = $this->makeKnownLink( $wgRightsPage, $wgRightsText );
1430                 } elseif( $wgRightsUrl ) {
1431                         $link = $this->makeExternalLink( $wgRightsUrl, $wgRightsText );
1432                 } elseif( $wgRightsText ) {
1433                         $link = $wgRightsText;
1434                 } else {
1435                         # Give up now
1436                         return $out;
1437                 }
1438                 $out .= wfMsgForContent( $msg, $link );
1439                 return $out;
1440         }
1441
1442         function getCopyrightIcon() {
1443                 global $wgRightsUrl, $wgRightsText, $wgRightsIcon, $wgCopyrightIcon;
1444                 $out = '';
1445                 if ( isset( $wgCopyrightIcon ) && $wgCopyrightIcon ) {
1446                         $out = $wgCopyrightIcon;
1447                 } else if ( $wgRightsIcon ) {
1448                         $icon = htmlspecialchars( $wgRightsIcon );
1449                         if ( $wgRightsUrl ) {
1450                                 $url = htmlspecialchars( $wgRightsUrl );
1451                                 $out .= '<a href="'.$url.'">';
1452                         }
1453                         $text = htmlspecialchars( $wgRightsText );
1454                         $out .= "<img src=\"$icon\" alt='$text' />";
1455                         if ( $wgRightsUrl ) {
1456                                 $out .= '</a>';
1457                         }
1458                 }
1459                 return $out;
1460         }
1461
1462         function getPoweredBy() {
1463                 global $wgStylePath;
1464                 $url = htmlspecialchars( "$wgStylePath/common/images/poweredby_mediawiki_88x31.png" );
1465                 $img = '<a href="http://www.mediawiki.org/"><img src="'.$url.'" alt="Powered by MediaWiki" /></a>';
1466                 return $img;
1467         }
1468
1469         function lastModified() {
1470                 global $wgLang, $wgArticle;
1471                 if( $this->mRevisionId ) {
1472                         $timestamp = Revision::getTimestampFromId( $wgArticle->getTitle(), $this->mRevisionId );
1473                 } else {
1474                         $timestamp = $wgArticle->getTimestamp();
1475                 }
1476                 if ( $timestamp ) {
1477                         $d = $wgLang->date( $timestamp, true );
1478                         $t = $wgLang->time( $timestamp, true );
1479                         $s = ' ' . wfMsg( 'lastmodifiedat', $d, $t );
1480                 } else {
1481                         $s = '';
1482                 }
1483                 if ( wfGetLB()->getLaggedSlaveMode() ) {
1484                         $s .= ' <strong>' . wfMsg( 'laggedslavemode' ) . '</strong>';
1485                 }
1486                 return $s;
1487         }
1488
1489         function logoText( $align = '' ) {
1490                 if ( '' != $align ) {
1491                         $a = " align='{$align}'";
1492                 } else {
1493                         $a = '';
1494                 }
1495
1496                 $mp = wfMsg( 'mainpage' );
1497                 $mptitle = Title::newMainPage();
1498                 $url = ( is_object( $mptitle ) ? $mptitle->escapeLocalURL() : '' );
1499
1500                 $logourl = $this->getLogo();
1501                 $s = "<a href='{$url}'><img{$a} src='{$logourl}' alt='[{$mp}]' /></a>";
1502                 return $s;
1503         }
1504
1505         /**
1506          * show a drop-down box of special pages
1507          */
1508         function specialPagesList() {
1509                 global $wgUser, $wgContLang, $wgServer, $wgRedirectScript;
1510                 $pages = array_merge( SpecialPage::getRegularPages(), SpecialPage::getRestrictedPages() );
1511                 foreach ( $pages as $name => $page ) {
1512                         $pages[$name] = $page->getDescription();
1513                 }
1514
1515                 $go = wfMsg( 'go' );
1516                 $sp = wfMsg( 'specialpages' );
1517                 $spp = $wgContLang->specialPage( 'Specialpages' );
1518
1519                 $s = '<form id="specialpages" method="get" ' .
1520                   'action="' . htmlspecialchars( "{$wgServer}{$wgRedirectScript}" ) . "\">\n";
1521                 $s .= "<select name=\"wpDropdown\">\n";
1522                 $s .= "<option value=\"{$spp}\">{$sp}</option>\n";
1523
1524
1525                 foreach ( $pages as $name => $desc ) {
1526                         $p = $wgContLang->specialPage( $name );
1527                         $s .= "<option value=\"{$p}\">{$desc}</option>\n";
1528                 }
1529                 $s .= "</select>\n";
1530                 $s .= "<input type='submit' value=\"{$go}\" name='redirect' />\n";
1531                 $s .= "</form>\n";
1532                 return $s;
1533         }
1534
1535         function mainPageLink() {
1536                 $s = $this->link(
1537                         Title::newMainPage(),
1538                         wfMsg( 'mainpage' ),
1539                         array(),
1540                         array(),
1541                         array( 'known', 'noclasses' )
1542                 );
1543                 return $s;
1544         }
1545
1546         function copyrightLink() {
1547                 $s = $this->makeKnownLink( wfMsgForContent( 'copyrightpage' ),
1548                   wfMsg( 'copyrightpagename' ) );
1549                 return $s;
1550         }
1551
1552         private function footerLink ( $desc, $page ) {
1553                 // if the link description has been set to "-" in the default language,
1554                 if ( wfMsgForContent( $desc )  == '-') {
1555                         // then it is disabled, for all languages.
1556                         return '';
1557                 } else {
1558                         // Otherwise, we display the link for the user, described in their
1559                         // language (which may or may not be the same as the default language),
1560                         // but we make the link target be the one site-wide page.
1561                         return $this->makeKnownLink( wfMsgForContent( $page ),
1562                                 wfMsgExt( $desc, array( 'parsemag', 'escapenoentities' ) ) );
1563                 }
1564         }
1565
1566         function privacyLink() {
1567                 return $this->footerLink( 'privacy', 'privacypage' );
1568         }
1569
1570         function aboutLink() {
1571                 return $this->footerLink( 'aboutsite', 'aboutpage' );
1572         }
1573
1574         function disclaimerLink() {
1575                 return $this->footerLink( 'disclaimers', 'disclaimerpage' );
1576         }
1577
1578         function editThisPage() {
1579                 global $wgOut;
1580
1581                 if ( !$wgOut->isArticleRelated() ) {
1582                         $s = wfMsg( 'protectedpage' );
1583                 } else {
1584                         if( $this->mTitle->quickUserCan( 'edit' ) && $this->mTitle->exists() ) {
1585                                 $t = wfMsg( 'editthispage' );
1586                         } elseif( $this->mTitle->quickUserCan( 'create' ) && !$this->mTitle->exists() ) {
1587                                 $t = wfMsg( 'create-this-page' );
1588                         } else {
1589                                 $t = wfMsg( 'viewsource' );
1590                         }
1591
1592                         $s = $this->link(
1593                                 $this->mTitle,
1594                                 $t,
1595                                 array(),
1596                                 $this->editUrlOptions(),
1597                                 array( 'known', 'noclasses' )
1598                         );
1599                 }
1600                 return $s;
1601         }
1602
1603         /**
1604          * Return URL options for the 'edit page' link.
1605          * This may include an 'oldid' specifier, if the current page view is such.
1606          *
1607          * @return array
1608          * @private
1609          */
1610         function editUrlOptions() {
1611                 global $wgArticle;
1612
1613                 $options = array( 'action' => 'edit' );
1614
1615                 if( $this->mRevisionId && ! $wgArticle->isCurrent() ) {
1616                         $options['oldid'] = intval( $this->mRevisionId );
1617                 }
1618
1619                 return $options;
1620         }
1621
1622         function deleteThisPage() {
1623                 global $wgUser, $wgRequest;
1624
1625                 $diff = $wgRequest->getVal( 'diff' );
1626                 if ( $this->mTitle->getArticleId() && ( !$diff ) && $wgUser->isAllowed( 'delete' ) ) {
1627                         $t = wfMsg( 'deletethispage' );
1628
1629                         $s = $this->link(
1630                                 $this->mTitle,
1631                                 $t,
1632                                 array(),
1633                                 array( 'action' => 'delete' ),
1634                                 array( 'known', 'noclasses' )
1635                         );
1636                 } else {
1637                         $s = '';
1638                 }
1639                 return $s;
1640         }
1641
1642         function protectThisPage() {
1643                 global $wgUser, $wgRequest;
1644
1645                 $diff = $wgRequest->getVal( 'diff' );
1646                 if ( $this->mTitle->getArticleId() && ( ! $diff ) && $wgUser->isAllowed('protect') ) {
1647                         if ( $this->mTitle->isProtected() ) {
1648                                 $text = wfMsg( 'unprotectthispage' );
1649                                 $query = array( 'action' => 'unprotect' );
1650                         } else {
1651                                 $text = wfMsg( 'protectthispage' );
1652                                 $query = array( 'action' => 'protect' );
1653                         }
1654
1655                         $s = $this->link(
1656                                 $this->mTitle,
1657                                 $text,
1658                                 array(),
1659                                 $query,
1660                                 array( 'known', 'noclasses' )
1661                         );
1662                 } else {
1663                         $s = '';
1664                 }
1665                 return $s;
1666         }
1667
1668         function watchThisPage() {
1669                 global $wgOut;
1670                 ++$this->mWatchLinkNum;
1671
1672                 if ( $wgOut->isArticleRelated() ) {
1673                         if ( $this->mTitle->userIsWatching() ) {
1674                                 $text = wfMsg( 'unwatchthispage' );
1675                                 $query = array( 'action' => 'unwatch' );
1676                                 $id = array( 'mw-unwatch-link' => $this->mWatchLinkNum );
1677                         } else {
1678                                 $text = wfMsg( 'watchthispage' );
1679                                 $query = array( 'action' => 'watch' );
1680                                 $id = array( 'mw-watch-link' => $this->mWatchLinkNum );
1681                         }
1682
1683                         $s = $this->link(
1684                                 $this->mTitle,
1685                                 $text,
1686                                 array( 'id' => $id ),
1687                                 $query,
1688                                 array( 'known', 'noclasses' )
1689                         );
1690                 } else {
1691                         $s = wfMsg( 'notanarticle' );
1692                 }
1693                 return $s;
1694         }
1695
1696         function moveThisPage() {
1697                 if ( $this->mTitle->quickUserCan( 'move' ) ) {
1698                         return $this->link(
1699                                 SpecialPage::getTitleFor( 'Movepage' ),
1700                                 wfMsg( 'movethispage' ),
1701                                 array(),
1702                                 array( 'target' => $this->mTitle->getPrefixedURL() ),
1703                                 array( 'known', 'noclasses' )
1704                         );
1705                 } else {
1706                         // no message if page is protected - would be redundant
1707                         return '';
1708                 }
1709         }
1710
1711         function historyLink() {
1712                 return $this->link(
1713                         $this->mTitle,
1714                         wfMsgHtml( 'history' ),
1715                         array( 'rel' => 'archives' ),
1716                         array( 'action' => 'history' )
1717                 );
1718         }
1719
1720         function whatLinksHere() {
1721                 return $this->link(
1722                         SpecialPage::getTitleFor( 'Whatlinkshere', $this->mTitle->getPrefixedDBkey() ),
1723                         wfMsgHtml( 'whatlinkshere' ),
1724                         array(),
1725                         array(),
1726                         array( 'known', 'noclasses' )
1727                 );
1728         }
1729
1730         function userContribsLink() {
1731                 return $this->link(
1732                         SpecialPage::getTitleFor( 'Contributions', $this->mTitle->getDBkey() ),
1733                         wfMsgHtml( 'contributions' ),
1734                         array(),
1735                         array(),
1736                         array( 'known', 'noclasses' )
1737                 );
1738         }
1739
1740         function showEmailUser( $id ) {
1741                 global $wgUser;
1742                 $targetUser = User::newFromId( $id );
1743                 return  $wgUser->canSendEmail() && # the sending user must have a confirmed email address
1744                         $targetUser->canReceiveEmail(); # the target user must have a confirmed email address and allow emails from users
1745         }
1746
1747         function emailUserLink() {
1748                 return $this->link(
1749                         SpecialPage::getTitleFor( 'Emailuser', $this->mTitle->getDBkey() ),
1750                         wfMsg( 'emailuser' ),
1751                         array(),
1752                         array(),
1753                         array( 'known', 'noclasses' )
1754                 );
1755         }
1756
1757         function watchPageLinksLink() {
1758                 global $wgOut;
1759                 if ( ! $wgOut->isArticleRelated() ) {
1760                         return '(' . wfMsg( 'notanarticle' ) . ')';
1761                 } else {
1762                         return $this->link(
1763                                 SpecialPage::getTitleFor( 'Recentchangeslinked', $this->mTitle->getPrefixedDBkey() ),
1764                                 wfMsg( 'recentchangeslinked-toolbox' ),
1765                                 array(),
1766                                 array(),
1767                                 array( 'known', 'noclasses' )
1768                         );
1769                 }
1770         }
1771
1772         function trackbackLink() {
1773                 return '<a href="' . $this->mTitle->trackbackURL() . '">'
1774                         . wfMsg( 'trackbacklink' ) . '</a>';
1775         }
1776
1777         function otherLanguages() {
1778                 global $wgOut, $wgContLang, $wgHideInterlanguageLinks;
1779
1780                 if ( $wgHideInterlanguageLinks ) {
1781                         return '';
1782                 }
1783
1784                 $a = $wgOut->getLanguageLinks();
1785                 if ( 0 == count( $a ) ) {
1786                         return '';
1787                 }
1788
1789                 $s = wfMsg( 'otherlanguages' ) . wfMsg( 'colon-separator' );
1790                 $first = true;
1791                 if( $wgContLang->isRTL() ) $s .= '<span dir="LTR">';
1792                 foreach( $a as $l ) {
1793                         if ( !$first ) {
1794                                 $s .= wfMsgExt( 'pipe-separator', 'escapenoentities' );
1795                         }
1796                         $first = false;
1797
1798                         $nt = Title::newFromText( $l );
1799                         $url = $nt->escapeFullURL();
1800                         $text = $wgContLang->getLanguageName( $nt->getInterwiki() );
1801
1802                         if ( '' == $text ) { $text = $l; }
1803                         $style = $this->getExternalLinkAttributes( $l, $text );
1804                         $s .= "<a href=\"{$url}\"{$style}>{$text}</a>";
1805                 }
1806                 if( $wgContLang->isRTL() ) $s .= '</span>';
1807                 return $s;
1808         }
1809
1810         function talkLink() {
1811                 if ( NS_SPECIAL == $this->mTitle->getNamespace() ) {
1812                         # No discussion links for special pages
1813                         return '';
1814                 }
1815
1816                 $linkOptions = array();
1817
1818                 if( $this->mTitle->isTalkPage() ) {
1819                         $link = $this->mTitle->getSubjectPage();
1820                         switch( $link->getNamespace() ) {
1821                                 case NS_MAIN:
1822                                         $text = wfMsg( 'articlepage' );
1823                                         break;
1824                                 case NS_USER:
1825                                         $text = wfMsg( 'userpage' );
1826                                         break;
1827                                 case NS_PROJECT:
1828                                         $text = wfMsg( 'projectpage' );
1829                                         break;
1830                                 case NS_FILE:
1831                                         $text = wfMsg( 'imagepage' );
1832                                         # Make link known if image exists, even if the desc. page doesn't.
1833                                         if( wfFindFile( $link ) )
1834                                                 $linkOptions[] = 'known';
1835                                         break;
1836                                 case NS_MEDIAWIKI:
1837                                         $text = wfMsg( 'mediawikipage' );
1838                                         break;
1839                                 case NS_TEMPLATE:
1840                                         $text = wfMsg( 'templatepage' );
1841                                         break;
1842                                 case NS_HELP:
1843                                         $text = wfMsg( 'viewhelppage' );
1844                                         break;
1845                                 case NS_CATEGORY:
1846                                         $text = wfMsg( 'categorypage' );
1847                                         break;
1848                                 default:
1849                                         $text = wfMsg( 'articlepage' );
1850                         }
1851                 } else {
1852                         $link = $this->mTitle->getTalkPage();
1853                         $text = wfMsg( 'talkpage' );
1854                 }
1855
1856                 $s = $this->link( $link, $text, array(), array(), $linkOptions );
1857
1858                 return $s;
1859         }
1860
1861         function commentLink() {
1862                 global $wgOut;
1863
1864                 if ( $this->mTitle->getNamespace() == NS_SPECIAL ) {
1865                         return '';
1866                 }
1867
1868                 # __NEWSECTIONLINK___ changes behaviour here
1869                 # If it is present, the link points to this page, otherwise
1870                 # it points to the talk page
1871                 if( $this->mTitle->isTalkPage() ) {
1872                         $title = $this->mTitle;
1873                 } elseif( $wgOut->showNewSectionLink() ) {
1874                         $title = $this->mTitle;
1875                 } else {
1876                         $title = $this->mTitle->getTalkPage();
1877                 }
1878
1879                 return $this->link(
1880                         $title,
1881                         wfMsg( 'postcomment' ),
1882                         array(),
1883                         array(
1884                                 'action' => 'edit',
1885                                 'section' => 'new'
1886                         ),
1887                         array( 'known', 'noclasses' )
1888                 );
1889         }
1890
1891         /* these are used extensively in SkinTemplate, but also some other places */
1892         static function makeMainPageUrl( $urlaction = '' ) {
1893                 $title = Title::newMainPage();
1894                 self::checkTitle( $title, '' );
1895                 return $title->getLocalURL( $urlaction );
1896         }
1897
1898         static function makeSpecialUrl( $name, $urlaction = '' ) {
1899                 $title = SpecialPage::getTitleFor( $name );
1900                 return $title->getLocalURL( $urlaction );
1901         }
1902
1903         static function makeSpecialUrlSubpage( $name, $subpage, $urlaction = '' ) {
1904                 $title = SpecialPage::getSafeTitleFor( $name, $subpage );
1905                 return $title->getLocalURL( $urlaction );
1906         }
1907
1908         static function makeI18nUrl( $name, $urlaction = '' ) {
1909                 $title = Title::newFromText( wfMsgForContent( $name ) );
1910                 self::checkTitle( $title, $name );
1911                 return $title->getLocalURL( $urlaction );
1912         }
1913
1914         static function makeUrl( $name, $urlaction = '' ) {
1915                 $title = Title::newFromText( $name );
1916                 self::checkTitle( $title, $name );
1917                 return $title->getLocalURL( $urlaction );
1918         }
1919
1920         # If url string starts with http, consider as external URL, else
1921         # internal
1922         static function makeInternalOrExternalUrl( $name ) {
1923                 if ( preg_match( '/^(?:' . wfUrlProtocols() . ')/', $name ) ) {
1924                         return $name;
1925                 } else {
1926                         return self::makeUrl( $name );
1927                 }
1928         }
1929
1930         # this can be passed the NS number as defined in Language.php
1931         static function makeNSUrl( $name, $urlaction = '', $namespace = NS_MAIN ) {
1932                 $title = Title::makeTitleSafe( $namespace, $name );
1933                 self::checkTitle( $title, $name );
1934                 return $title->getLocalURL( $urlaction );
1935         }
1936
1937         /* these return an array with the 'href' and boolean 'exists' */
1938         static function makeUrlDetails( $name, $urlaction = '' ) {
1939                 $title = Title::newFromText( $name );
1940                 self::checkTitle( $title, $name );
1941                 return array(
1942                         'href' => $title->getLocalURL( $urlaction ),
1943                         'exists' => $title->getArticleID() != 0 ? true : false
1944                 );
1945         }
1946
1947         /**
1948          * Make URL details where the article exists (or at least it's convenient to think so)
1949          */
1950         static function makeKnownUrlDetails( $name, $urlaction = '' ) {
1951                 $title = Title::newFromText( $name );
1952                 self::checkTitle( $title, $name );
1953                 return array(
1954                         'href' => $title->getLocalURL( $urlaction ),
1955                         'exists' => true
1956                 );
1957         }
1958
1959         # make sure we have some title to operate on
1960         static function checkTitle( &$title, $name ) {
1961                 if( !is_object( $title ) ) {
1962                         $title = Title::newFromText( $name );
1963                         if( !is_object( $title ) ) {
1964                                 $title = Title::newFromText( '--error: link target missing--' );
1965                         }
1966                 }
1967         }
1968
1969         /**
1970          * Build an array that represents the sidebar(s), the navigation bar among them
1971          *
1972          * @return array
1973          */
1974         function buildSidebar() {
1975                 global $parserMemc, $wgEnableSidebarCache, $wgSidebarCacheExpiry;
1976                 global $wgLang;
1977                 wfProfileIn( __METHOD__ );
1978
1979                 $key = wfMemcKey( 'sidebar', $wgLang->getCode() );
1980
1981                 if ( $wgEnableSidebarCache ) {
1982                         $cachedsidebar = $parserMemc->get( $key );
1983                         if ( $cachedsidebar ) {
1984                                 wfProfileOut( __METHOD__ );
1985                                 return $cachedsidebar;
1986                         }
1987                 }
1988
1989                 $bar = array();
1990                 $lines = explode( "\n", wfMsgForContent( 'sidebar' ) );
1991                 $heading = '';
1992                 foreach( $lines as $line ) {
1993                         if( strpos( $line, '*' ) !== 0 )
1994                                 continue;
1995                         if( strpos( $line, '**') !== 0 ) {
1996                                 $heading = trim( $line, '* ' );
1997                                 if( !array_key_exists( $heading, $bar ) ) $bar[$heading] = array();
1998                         } else {
1999                                 if( strpos( $line, '|' ) !== false ) { // sanity check
2000                                         $line = array_map( 'trim', explode( '|', trim( $line, '* ' ), 2 ) );
2001                                         $link = wfMsgForContent( $line[0] );
2002                                         if( $link == '-' )
2003                                                 continue;
2004
2005                                         $text = wfMsgExt( $line[1], 'parsemag' );
2006                                         if( wfEmptyMsg( $line[1], $text ) )
2007                                                 $text = $line[1];
2008                                         if( wfEmptyMsg( $line[0], $link ) )
2009                                                 $link = $line[0];
2010
2011                                         if ( preg_match( '/^(?:' . wfUrlProtocols() . ')/', $link ) ) {
2012                                                 $href = $link;
2013                                         } else {
2014                                                 $title = Title::newFromText( $link );
2015                                                 if ( $title ) {
2016                                                         $title = $title->fixSpecialName();
2017                                                         $href = $title->getLocalURL();
2018                                                 } else {
2019                                                         $href = 'INVALID-TITLE';
2020                                                 }
2021                                         }
2022
2023                                         $bar[$heading][] = array(
2024                                                 'text' => $text,
2025                                                 'href' => $href,
2026                                                 'id' => 'n-' . strtr( $line[1], ' ', '-' ),
2027                                                 'active' => false
2028                                         );
2029                                 } else { continue; }
2030                         }
2031                 }
2032                 wfRunHooks( 'SkinBuildSidebar', array( $this, &$bar ) );
2033                 if ( $wgEnableSidebarCache ) $parserMemc->set( $key, $bar, $wgSidebarCacheExpiry );
2034                 wfProfileOut( __METHOD__ );
2035                 return $bar;
2036         }
2037 }