includes/Skin.php

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