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                 $a['class'] =
 548                         'mediawiki ns-'.$wgTitle->getNamespace().
 549                         ' '.($wgContLang->isRTL() ? "rtl" : "ltr").
 550                         ' '.Sanitizer::escapeClass( 'page-'.$wgTitle->getPrefixedText() );
 551                 return $a;
 552         }
 553
 554         /**
 555          * URL to the logo
 556          */
 557         function getLogo() {
 558                 global $wgLogo;
 559                 return $wgLogo;
 560         }
 561
 562         /**
 563          * This will be called immediately after the <body> tag.  Split into
 564          * two functions to make it easier to subclass.
 565          */
 566         function beforeContent() {
 567                 return $this->doBeforeContent();
 568         }
 569
 570         function doBeforeContent() {
 571                 global $wgContLang;
 572                 $fname = 'Skin::doBeforeContent';
 573                 wfProfileIn( $fname );
 574
 575                 $s = '';
 576                 $qb = $this->qbSetting();
 577
 578                 if( $langlinks = $this->otherLanguages() ) {
 579                         $rows = 2;
 580                         $borderhack = '';
 581                 } else {
 582                         $rows = 1;
 583                         $langlinks = false;
 584                         $borderhack = 'class="top"';
 585                 }
 586
 587                 $s .= "\n<div id='content'>\n<div id='topbar'>\n" .
 588                   "<table border='0' cellspacing='0' width='98%'>\n<tr>\n";
 589
 590                 $shove = ($qb != 0);
 591                 $left = ($qb == 1 || $qb == 3);
 592                 if($wgContLang->isRTL()) $left = !$left;
 593
 594                 if ( !$shove ) {
 595                         $s .= "<td class='top' align='left' valign='top' rowspan='{$rows}'>\n" .
 596                           $this->logoText() . '</td>';
 597                 } elseif( $left ) {
 598                         $s .= $this->getQuickbarCompensator( $rows );
 599                 }
 600                 $l = $wgContLang->isRTL() ? 'right' : 'left';
 601                 $s .= "<td {$borderhack} align='$l' valign='top'>\n";
 602
 603                 $s .= $this->topLinks() ;
 604                 $s .= "<p class='subtitle'>" . $this->pageTitleLinks() . "</p>\n";
 605
 606                 $r = $wgContLang->isRTL() ? "left" : "right";
 607                 $s .= "</td>\n<td {$borderhack} valign='top' align='$r' nowrap='nowrap'>";
 608                 $s .= $this->nameAndLogin();
 609                 $s .= "\n<br />" . $this->searchForm() . "</td>";
 610
 611                 if ( $langlinks ) {
 612                         $s .= "</tr>\n<tr>\n<td class='top' colspan=\"2\">$langlinks</td>\n";
 613                 }
 614
 615                 if ( $shove && !$left ) { # Right
 616                         $s .= $this->getQuickbarCompensator( $rows );
 617                 }
 618                 $s .= "</tr>\n</table>\n</div>\n";
 619                 $s .= "\n<div id='article'>\n";
 620
 621                 $notice = wfGetSiteNotice();
 622                 if( $notice ) {
 623                         $s .= "\n<div id='siteNotice'>$notice</div>\n";
 624                 }
 625                 $s .= $this->pageTitle();
 626                 $s .= $this->pageSubtitle() ;
 627                 $s .= $this->getCategories();
 628                 wfProfileOut( $fname );
 629                 return $s;
 630         }
 631
 632
 633         function getCategoryLinks() {
 634                 global $wgOut, $wgTitle, $wgUseCategoryBrowser;
 635                 global $wgContLang, $wgUser;
 636
 637                 if( count( $wgOut->mCategoryLinks ) == 0 ) return '';
 638
 639                 # Separator
 640                 $sep = wfMsgHtml( 'catseparator' );
 641
 642                 // Use Unicode bidi embedding override characters,
 643                 // to make sure links don't smash each other up in ugly ways.
 644                 $dir = $wgContLang->isRTL() ? 'rtl' : 'ltr';
 645                 $embed = "<span dir='$dir'>";
 646                 $pop = '</span>';
 647
 648                 $allCats = $wgOut->getCategoryLinks();
 649                 $s = '';
 650                 $colon = wfMsgExt( 'colon-separator', 'escapenoentities' );
 651                 if ( !empty( $allCats['normal'] ) ) {
 652                         $t = $embed . implode ( "{$pop} {$sep} {$embed}" , $allCats['normal'] ) . $pop;
 653
 654                         $msg = wfMsgExt( 'pagecategories', array( 'parsemag', 'escapenoentities' ), count( $allCats['normal'] ) );
 655                         $s .= '<div id="mw-normal-catlinks">' .
 656                                 $this->makeLinkObj( Title::newFromText( wfMsgForContent('pagecategorieslink') ), $msg )
 657                                 . $colon . $t . '</div>';
 658                 }
 659
 660                 # Hidden categories
 661                 if ( isset( $allCats['hidden'] ) ) {
 662                         if ( $wgUser->getBoolOption( 'showhiddencats' ) ) {
 663                                 $class ='mw-hidden-cats-user-shown';
 664                         } elseif ( $wgTitle->getNamespace() == NS_CATEGORY ) {
 665                                 $class = 'mw-hidden-cats-ns-shown';
 666                         } else {
 667                                 $class = 'mw-hidden-cats-hidden';
 668                         }
 669                         $s .= "<div id=\"mw-hidden-catlinks\" class=\"$class\">" .
 670                                 wfMsgExt( 'hidden-categories', array( 'parsemag', 'escapenoentities' ), count( $allCats['hidden'] ) ) .
 671                                 $colon . $embed . implode( "$pop $sep $embed", $allCats['hidden'] ) . $pop .
 672                                 "</div>";
 673                 }
 674
 675                 # optional 'dmoz-like' category browser. Will be shown under the list
 676                 # of categories an article belong to
 677                 if($wgUseCategoryBrowser) {
 678                         $s .= '<br /><hr />';
 679
 680                         # get a big array of the parents tree
 681                         $parenttree = $wgTitle->getParentCategoryTree();
 682                         # Skin object passed by reference cause it can not be
 683                         # accessed under the method subfunction drawCategoryBrowser
 684                         $tempout = explode("\n", Skin::drawCategoryBrowser($parenttree, $this) );
 685                         # Clean out bogus first entry and sort them
 686                         unset($tempout[0]);
 687                         asort($tempout);
 688                         # Output one per line
 689                         $s .= implode("<br />\n", $tempout);
 690                 }
 691
 692                 return $s;
 693         }
 694
 695         /** Render the array as a serie of links.
 696          * @param $tree Array: categories tree returned by Title::getParentCategoryTree
 697          * @param &skin Object: skin passed by reference
 698          * @return String separated by &gt;, terminate with "\n"
 699          */
 700         function drawCategoryBrowser($tree, &$skin) {
 701                 $return = '';
 702                 foreach ($tree as $element => $parent) {
 703                         if (empty($parent)) {
 704                                 # element start a new list
 705                                 $return .= "\n";
 706                         } else {
 707                                 # grab the others elements
 708                                 $return .= Skin::drawCategoryBrowser($parent, $skin) . ' &gt; ';
 709                         }
 710                         # add our current element to the list
 711                         $eltitle = Title::NewFromText($element);
 712                         $return .=  $skin->makeLinkObj( $eltitle, $eltitle->getText() ) ;
 713                 }
 714                 return $return;
 715         }
 716
 717         function getCategories() {
 718                 $catlinks=$this->getCategoryLinks();
 719
 720                 $classes = 'catlinks';
 721
 722                 if( strpos( $catlinks, '<div id="mw-normal-catlinks">' ) === false &&
 723                         strpos( $catlinks, '<div id="mw-hidden-catlinks" class="mw-hidden-cats-hidden">' ) !== false ) {
 724                         $classes .= ' catlinks-allhidden';
 725                 }
 726
 727                 if( !empty( $catlinks ) ){
 728                         return "<div id='catlinks' class='$classes'>{$catlinks}</div>";
 729                 }
 730         }
 731
 732         function getQuickbarCompensator( $rows = 1 ) {
 733                 return "<td width='152' rowspan='{$rows}'>&nbsp;</td>";
 734         }
 735
 736         /**
 737          * This gets called shortly before the \</body\> tag.
 738          * @return String HTML to be put before \</body\>
 739          */
 740         function afterContent() {
 741                 $printfooter = "<div class=\"printfooter\">\n" . $this->printFooter() . "</div>\n";
 742                 return $printfooter . $this->doAfterContent();
 743         }
 744
 745         /**
 746          * This gets called shortly before the \</body\> tag.
 747          * @return String HTML-wrapped JS code to be put before \</body\>
 748          */
 749         function bottomScripts() {
 750                 global $wgJsMimeType;
 751                 $bottomScriptText = "\n\t\t<script type=\"$wgJsMimeType\">if (window.runOnloadHook) runOnloadHook();</script>\n";
 752                 wfRunHooks( 'SkinAfterBottomScripts', array( $this, &$bottomScriptText ) );
 753                 return $bottomScriptText;
 754         }
 755
 756         /** @return string Retrievied from HTML text */
 757         function printSource() {
 758                 global $wgTitle;
 759                 $url = htmlspecialchars( $wgTitle->getFullURL() );
 760                 return wfMsg( 'retrievedfrom', '<a href="'.$url.'">'.$url.'</a>' );
 761         }
 762
 763         function printFooter() {
 764                 return "<p>" .  $this->printSource() .
 765                         "</p>\n\n<p>" . $this->pageStats() . "</p>\n";
 766         }
 767
 768         /** overloaded by derived classes */
 769         function doAfterContent() { }
 770
 771         function pageTitleLinks() {
 772                 global $wgOut, $wgTitle, $wgUser, $wgRequest;
 773
 774                 $oldid = $wgRequest->getVal( 'oldid' );
 775                 $diff = $wgRequest->getVal( 'diff' );
 776                 $action = $wgRequest->getText( 'action' );
 777
 778                 $s = $this->printableLink();
 779                 $disclaimer = $this->disclaimerLink(); # may be empty
 780                 if( $disclaimer ) {
 781                         $s .= ' | ' . $disclaimer;
 782                 }
 783                 $privacy = $this->privacyLink(); # may be empty too
 784                 if( $privacy ) {
 785                         $s .= ' | ' . $privacy;
 786                 }
 787
 788                 if ( $wgOut->isArticleRelated() ) {
 789                         if ( $wgTitle->getNamespace() == NS_IMAGE ) {
 790                                 $name = $wgTitle->getDBkey();
 791                                 $image = wfFindFile( $wgTitle );
 792                                 if( $image ) {
 793                                         $link = htmlspecialchars( $image->getURL() );
 794                                         $style = $this->getInternalLinkAttributes( $link, $name );
 795                                         $s .= " | <a href=\"{$link}\"{$style}>{$name}</a>";
 796                                 }
 797                         }
 798                 }
 799                 if ( 'history' == $action || isset( $diff ) || isset( $oldid ) ) {
 800                         $s .= ' | ' . $this->makeKnownLinkObj( $wgTitle,
 801                                         wfMsg( 'currentrev' ) );
 802                 }
 803
 804                 if ( $wgUser->getNewtalk() ) {
 805                         # do not show "You have new messages" text when we are viewing our
 806                         # own talk page
 807                         if( !$wgTitle->equals( $wgUser->getTalkPage() ) ) {
 808                                 $tl = $this->makeKnownLinkObj( $wgUser->getTalkPage(), wfMsgHtml( 'newmessageslink' ), 'redirect=no' );
 809                                 $dl = $this->makeKnownLinkObj( $wgUser->getTalkPage(), wfMsgHtml( 'newmessagesdifflink' ), 'diff=cur' );
 810                                 $s.= ' | <strong>'. wfMsg( 'youhavenewmessages', $tl, $dl ) . '</strong>';
 811                                 # disable caching
 812                                 $wgOut->setSquidMaxage(0);
 813                                 $wgOut->enableClientCache(false);
 814                         }
 815                 }
 816
 817                 $undelete = $this->getUndeleteLink();
 818                 if( !empty( $undelete ) ) {
 819                         $s .= ' | '.$undelete;
 820                 }
 821                 return $s;
 822         }
 823
 824         function getUndeleteLink() {
 825                 global $wgUser, $wgTitle, $wgContLang, $wgLang, $action;
 826                 if(     $wgUser->isAllowed( 'deletedhistory' ) &&
 827                         (($wgTitle->getArticleId() == 0) || ($action == "history")) &&
 828                         ($n = $wgTitle->isDeleted() ) )
 829                 {
 830                         if ( $wgUser->isAllowed( 'undelete' ) ) {
 831                                 $msg = 'thisisdeleted';
 832                         } else {
 833                                 $msg = 'viewdeleted';
 834                         }
 835                         return wfMsg( $msg,
 836                                 $this->makeKnownLinkObj(
 837                                         SpecialPage::getTitleFor( 'Undelete', $wgTitle->getPrefixedDBkey() ),
 838                                         wfMsgExt( 'restorelink', array( 'parsemag', 'escape' ), $wgLang->formatNum( $n ) ) ) );
 839                 }
 840                 return '';
 841         }
 842
 843         function printableLink() {
 844                 global $wgOut, $wgFeedClasses, $wgRequest;
 845
 846                 $printurl = $wgRequest->escapeAppendQuery( 'printable=yes' );
 847
 848                 $s = "<a href=\"$printurl\">" . wfMsg( 'printableversion' ) . '</a>';
 849                 if( $wgOut->isSyndicated() ) {
 850                         foreach( $wgFeedClasses as $format => $class ) {
 851                                 $feedurl = $wgRequest->escapeAppendQuery( "feed=$format" );
 852                                 $s .= " | <a href=\"$feedurl\">{$format}</a>";
 853                         }
 854                 }
 855                 return $s;
 856         }
 857
 858         function pageTitle() {
 859                 global $wgOut;
 860                 $s = '<h1 class="pagetitle">' . htmlspecialchars( $wgOut->getPageTitle() ) . '</h1>';
 861                 return $s;
 862         }
 863
 864         function pageSubtitle() {
 865                 global $wgOut;
 866
 867                 $sub = $wgOut->getSubtitle();
 868                 if ( '' == $sub ) {
 869                         global $wgExtraSubtitle;
 870                         $sub = wfMsg( 'tagline' ) . $wgExtraSubtitle;
 871                 }
 872                 $subpages = $this->subPageSubtitle();
 873                 $sub .= !empty($subpages)?"</p><p class='subpages'>$subpages":'';
 874                 $s = "<p class='subtitle'>{$sub}</p>\n";
 875                 return $s;
 876         }
 877
 878         function subPageSubtitle() {
 879                 $subpages = '';
 880                 if(!wfRunHooks('SkinSubPageSubtitle', array(&$subpages)))
 881                         return $retval;
 882
 883                 global $wgOut, $wgTitle, $wgNamespacesWithSubpages;
 884                 if($wgOut->isArticle() && !empty($wgNamespacesWithSubpages[$wgTitle->getNamespace()])) {
 885                         $ptext=$wgTitle->getPrefixedText();
 886                         if(preg_match('/\//',$ptext)) {
 887                                 $links = explode('/',$ptext);
 888                                 array_pop( $links );
 889                                 $c = 0;
 890                                 $growinglink = '';
 891                                 $display = '';
 892                                 foreach($links as $link) {
 893                                         $growinglink .= $link;
 894                                         $display .= $link;
 895                                         $linkObj = Title::newFromText( $growinglink );
 896                                         if( is_object( $linkObj ) && $linkObj->exists() ){
 897                                                 $getlink = $this->makeKnownLinkObj( $linkObj, htmlspecialchars( $display ) );
 898                                                 $c++;
 899                                                 if ($c>1) {
 900                                                         $subpages .= ' | ';
 901                                                 } else  {
 902                                                         $subpages .= '&lt; ';
 903                                                 }
 904                                                 $subpages .= $getlink;
 905                                                 $display = '';
 906                                         } else {
 907                                                 $display .= '/';
 908                                         }
 909                                         $growinglink .= '/';
 910                                 }
 911                         }
 912                 }
 913                 return $subpages;
 914         }
 915
 916         /**
 917          * Returns true if the IP should be shown in the header
 918          */
 919         function showIPinHeader() {
 920                 global $wgShowIPinHeader;
 921                 return $wgShowIPinHeader && session_id() != '';
 922         }
 923
 924         function nameAndLogin() {
 925                 global $wgUser, $wgTitle, $wgLang, $wgContLang;
 926
 927                 $lo = $wgContLang->specialPage( 'Userlogout' );
 928
 929                 $s = '';
 930                 if ( $wgUser->isAnon() ) {
 931                         if( $this->showIPinHeader() ) {
 932                                 $n = wfGetIP();
 933
 934                                 $tl = $this->makeKnownLinkObj( $wgUser->getTalkPage(),
 935                                   $wgLang->getNsText( NS_TALK ) );
 936
 937                                 $s .= $n . ' ('.$tl.')';
 938                         } else {
 939                                 $s .= wfMsg('notloggedin');
 940                         }
 941
 942                         $rt = $wgTitle->getPrefixedURL();
 943                         if ( 0 == strcasecmp( urlencode( $lo ), $rt ) ) {
 944                                 $q = '';
 945                         } else { $q = "returnto={$rt}"; }
 946
 947                         $loginlink = $wgUser->isAllowed( 'createaccount' )
 948                                 ? 'nav-login-createaccount'
 949                                 : 'login';
 950                         $s .= "\n<br />" . $this->makeKnownLinkObj(
 951                                 SpecialPage::getTitleFor( 'Userlogin' ),
 952                                 wfMsg( $loginlink ), $q );
 953                 } else {
 954                         $n = $wgUser->getName();
 955                         $rt = $wgTitle->getPrefixedURL();
 956                         $tl = $this->makeKnownLinkObj( $wgUser->getTalkPage(),
 957                           $wgLang->getNsText( NS_TALK ) );
 958
 959                         $tl = " ({$tl})";
 960
 961                         $s .= $this->makeKnownLinkObj( $wgUser->getUserPage(),
 962                           $n ) . "{$tl}<br />" .
 963                           $this->makeKnownLinkObj( SpecialPage::getTitleFor( 'Userlogout' ), wfMsg( 'logout' ),
 964                           "returnto={$rt}" ) . ' | ' .
 965                           $this->specialLink( 'preferences' );
 966                 }
 967                 $s .= ' | ' . $this->makeKnownLink( wfMsgForContent( 'helppage' ),
 968                   wfMsg( 'help' ) );
 969
 970                 return $s;
 971         }
 972
 973         function getSearchLink() {
 974                 $searchPage = SpecialPage::getTitleFor( 'Search' );
 975                 return $searchPage->getLocalURL();
 976         }
 977
 978         function escapeSearchLink() {
 979                 return htmlspecialchars( $this->getSearchLink() );
 980         }
 981
 982         function searchForm() {
 983                 global $wgRequest;
 984                 $search = $wgRequest->getText( 'search' );
 985
 986                 $s = '<form id="searchform'.$this->searchboxes.'" name="search" class="inline" method="post" action="'
 987                   . $this->escapeSearchLink() . "\">\n"
 988                   . '<input type="text" id="searchInput'.$this->searchboxes.'" name="search" size="19" value="'
 989                   . htmlspecialchars(substr($search,0,256)) . "\" />\n"
 990                   . '<input type="submit" name="go" value="' . wfMsg ('searcharticle') . '" />&nbsp;'
 991                   . '<input type="submit" name="fulltext" value="' . wfMsg ('searchbutton') . "\" />\n</form>";
 992
 993                 // Ensure unique id's for search boxes made after the first
 994                 $this->searchboxes = $this->searchboxes == '' ? 2 : $this->searchboxes + 1;
 995
 996                 return $s;
 997         }
 998
 999         function topLinks() {
1000                 global $wgOut;
1001                 $sep = " |\n";
1002
1003                 $s = $this->mainPageLink() . $sep
1004                   . $this->specialLink( 'recentchanges' );
1005
1006                 if ( $wgOut->isArticleRelated() ) {
1007                         $s .=  $sep . $this->editThisPage()
1008                           . $sep . $this->historyLink();
1009                 }
1010                 # Many people don't like this dropdown box
1011                 #$s .= $sep . $this->specialPagesList();
1012
1013                 $s .= $this->variantLinks();
1014
1015                 $s .= $this->extensionTabLinks();
1016
1017                 return $s;
1018         }
1019
1020         /**
1021          * Compatibility for extensions adding functionality through tabs.
1022          * Eventually these old skins should be replaced with SkinTemplate-based
1023          * versions, sigh...
1024          * @return string
1025          */
1026         function extensionTabLinks() {
1027                 $tabs = array();
1028                 $s = '';
1029                 wfRunHooks( 'SkinTemplateTabs', array( $this, &$tabs ) );
1030                 foreach( $tabs as $tab ) {
1031                         $s .= ' | ' . Xml::element( 'a',
1032                                 array( 'href' => $tab['href'] ),
1033                                 $tab['text'] );
1034                 }
1035                 return $s;
1036         }
1037
1038         /**
1039          * Language/charset variant links for classic-style skins
1040          * @return string
1041          */
1042         function variantLinks() {
1043                 $s = '';
1044                 /* show links to different language variants */
1045                 global $wgDisableLangConversion, $wgContLang, $wgTitle;
1046                 $variants = $wgContLang->getVariants();
1047                 if( !$wgDisableLangConversion && sizeof( $variants ) > 1 ) {
1048                         foreach( $variants as $code ) {
1049                                 $varname = $wgContLang->getVariantname( $code );
1050                                 if( $varname == 'disable' )
1051                                         continue;
1052                                 $s .= ' | <a href="' . $wgTitle->escapeLocalUrl( 'variant=' . $code ) . '">' . htmlspecialchars( $varname ) . '</a>';
1053                         }
1054                 }
1055                 return $s;
1056         }
1057
1058         function bottomLinks() {
1059                 global $wgOut, $wgUser, $wgTitle, $wgUseTrackbacks;
1060                 $sep = " |\n";
1061
1062                 $s = '';
1063                 if ( $wgOut->isArticleRelated() ) {
1064                         $s .= '<strong>' . $this->editThisPage() . '</strong>';
1065                         if ( $wgUser->isLoggedIn() ) {
1066                                 $s .= $sep . $this->watchThisPage();
1067                         }
1068                         $s .= $sep . $this->talkLink()
1069                           . $sep . $this->historyLink()
1070                           . $sep . $this->whatLinksHere()
1071                           . $sep . $this->watchPageLinksLink();
1072
1073                         if ($wgUseTrackbacks)
1074                                 $s .= $sep . $this->trackbackLink();
1075
1076                         if ( $wgTitle->getNamespace() == NS_USER
1077                             || $wgTitle->getNamespace() == NS_USER_TALK )
1078
1079                         {
1080                                 $id=User::idFromName($wgTitle->getText());
1081                                 $ip=User::isIP($wgTitle->getText());
1082
1083                                 if($id || $ip) { # both anons and non-anons have contri list
1084                                         $s .= $sep . $this->userContribsLink();
1085                                 }
1086                                 if( $this->showEmailUser( $id ) ) {
1087                                         $s .= $sep . $this->emailUserLink();
1088                                 }
1089                         }
1090                         if ( $wgTitle->getArticleId() ) {
1091                                 $s .= "\n<br />";
1092                                 if($wgUser->isAllowed('delete')) { $s .= $this->deleteThisPage(); }
1093                                 if($wgUser->isAllowed('protect')) { $s .= $sep . $this->protectThisPage(); }
1094                                 if($wgUser->isAllowed('move')) { $s .= $sep . $this->moveThisPage(); }
1095                         }
1096                         $s .= "<br />\n" . $this->otherLanguages();
1097                 }
1098                 return $s;
1099         }
1100
1101         function pageStats() {
1102                 global $wgOut, $wgLang, $wgArticle, $wgRequest, $wgUser;
1103                 global $wgDisableCounters, $wgMaxCredits, $wgShowCreditsIfMax, $wgTitle, $wgPageShowWatchingUsers;
1104
1105                 $oldid = $wgRequest->getVal( 'oldid' );
1106                 $diff = $wgRequest->getVal( 'diff' );
1107                 if ( ! $wgOut->isArticle() ) { return ''; }
1108                 if ( isset( $oldid ) || isset( $diff ) ) { return ''; }
1109                 if ( 0 == $wgArticle->getID() ) { return ''; }
1110
1111                 $s = '';
1112                 if ( !$wgDisableCounters ) {
1113                         $count = $wgLang->formatNum( $wgArticle->getCount() );
1114                         if ( $count ) {
1115                                 $s = wfMsgExt( 'viewcount', array( 'parseinline' ), $count );
1116                         }
1117                 }
1118
1119                 if (isset($wgMaxCredits) && $wgMaxCredits != 0) {
1120                     require_once('Credits.php');
1121                     $s .= ' ' . getCredits($wgArticle, $wgMaxCredits, $wgShowCreditsIfMax);
1122                 } else {
1123                     $s .= $this->lastModified();
1124                 }
1125
1126                 if ($wgPageShowWatchingUsers && $wgUser->getOption( 'shownumberswatching' )) {
1127                         $dbr = wfGetDB( DB_SLAVE );
1128                         $watchlist = $dbr->tableName( 'watchlist' );
1129                         $sql = "SELECT COUNT(*) AS n FROM $watchlist
1130                                 WHERE wl_title='" . $dbr->strencode($wgTitle->getDBkey()) .
1131                                 "' AND  wl_namespace=" . $wgTitle->getNamespace() ;
1132                         $res = $dbr->query( $sql, 'Skin::pageStats');
1133                         $x = $dbr->fetchObject( $res );
1134
1135                         $s .= ' ' . wfMsgExt( 'number_of_watching_users_pageview',
1136                                 array( 'parseinline' ), $wgLang->formatNum($x->n)
1137                         );
1138                 }
1139
1140                 return $s . ' ' .  $this->getCopyright();
1141         }
1142
1143         function getCopyright( $type = 'detect' ) {
1144                 global $wgRightsPage, $wgRightsUrl, $wgRightsText, $wgRequest;
1145
1146                 if ( $type == 'detect' ) {
1147                         $oldid = $wgRequest->getVal( 'oldid' );
1148                         $diff = $wgRequest->getVal( 'diff' );
1149
1150                         if ( !is_null( $oldid ) && is_null( $diff ) && wfMsgForContent( 'history_copyright' ) !== '-' ) {
1151                                 $type = 'history';
1152                         } else {
1153                                 $type = 'normal';
1154                         }
1155                 }
1156
1157                 if ( $type == 'history' ) {
1158                         $msg = 'history_copyright';
1159                 } else {
1160                         $msg = 'copyright';
1161                 }
1162
1163                 $out = '';
1164                 if( $wgRightsPage ) {
1165                         $link = $this->makeKnownLink( $wgRightsPage, $wgRightsText );
1166                 } elseif( $wgRightsUrl ) {
1167                         $link = $this->makeExternalLink( $wgRightsUrl, $wgRightsText );
1168                 } else {
1169                         # Give up now
1170                         return $out;
1171                 }
1172                 $out .= wfMsgForContent( $msg, $link );
1173                 return $out;
1174         }
1175
1176         function getCopyrightIcon() {
1177                 global $wgRightsUrl, $wgRightsText, $wgRightsIcon, $wgCopyrightIcon;
1178                 $out = '';
1179                 if ( isset( $wgCopyrightIcon ) && $wgCopyrightIcon ) {
1180                         $out = $wgCopyrightIcon;
1181                 } else if ( $wgRightsIcon ) {
1182                         $icon = htmlspecialchars( $wgRightsIcon );
1183                         if ( $wgRightsUrl ) {
1184                                 $url = htmlspecialchars( $wgRightsUrl );
1185                                 $out .= '<a href="'.$url.'">';
1186                         }
1187                         $text = htmlspecialchars( $wgRightsText );
1188                         $out .= "<img src=\"$icon\" alt='$text' />";
1189                         if ( $wgRightsUrl ) {
1190                                 $out .= '</a>';
1191                         }
1192                 }
1193                 return $out;
1194         }
1195
1196         function getPoweredBy() {
1197                 global $wgStylePath;
1198                 $url = htmlspecialchars( "$wgStylePath/common/images/poweredby_mediawiki_88x31.png" );
1199                 $img = '<a href="http://www.mediawiki.org/"><img src="'.$url.'" alt="Powered by MediaWiki" /></a>';
1200                 return $img;
1201         }
1202
1203         function lastModified() {
1204                 global $wgLang, $wgArticle;
1205
1206                 $timestamp = $wgArticle->getTimestamp();
1207                 if ( $timestamp ) {
1208                         $d = $wgLang->date( $timestamp, true );
1209                         $t = $wgLang->time( $timestamp, true );
1210                         $s = ' ' . wfMsg( 'lastmodifiedat', $d, $t );
1211                 } else {
1212                         $s = '';
1213                 }
1214                 if ( wfGetLB()->getLaggedSlaveMode() ) {
1215                         $s .= ' <strong>' . wfMsg( 'laggedslavemode' ) . '</strong>';
1216                 }
1217                 return $s;
1218         }
1219
1220         function logoText( $align = '' ) {
1221                 if ( '' != $align ) { $a = " align='{$align}'"; }
1222                 else { $a = ''; }
1223
1224                 $mp = wfMsg( 'mainpage' );
1225                 $mptitle = Title::newMainPage();
1226                 $url = ( is_object($mptitle) ? $mptitle->escapeLocalURL() : '' );
1227
1228                 $logourl = $this->getLogo();
1229                 $s = "<a href='{$url}'><img{$a} src='{$logourl}' alt='[{$mp}]' /></a>";
1230                 return $s;
1231         }
1232
1233         /**
1234          * show a drop-down box of special pages
1235          */
1236         function specialPagesList() {
1237                 global $wgUser, $wgContLang, $wgServer, $wgRedirectScript;
1238                 $pages = array_merge( SpecialPage::getRegularPages(), SpecialPage::getRestrictedPages() );
1239                 foreach ( $pages as $name => $page ) {
1240                         $pages[$name] = $page->getDescription();
1241                 }
1242
1243                 $go = wfMsg( 'go' );
1244                 $sp = wfMsg( 'specialpages' );
1245                 $spp = $wgContLang->specialPage( 'Specialpages' );
1246
1247                 $s = '<form id="specialpages" method="get" class="inline" ' .
1248                   'action="' . htmlspecialchars( "{$wgServer}{$wgRedirectScript}" ) . "\">\n";
1249                 $s .= "<select name=\"wpDropdown\">\n";
1250                 $s .= "<option value=\"{$spp}\">{$sp}</option>\n";
1251
1252
1253                 foreach ( $pages as $name => $desc ) {
1254                         $p = $wgContLang->specialPage( $name );
1255                         $s .= "<option value=\"{$p}\">{$desc}</option>\n";
1256                 }
1257                 $s .= "</select>\n";
1258                 $s .= "<input type='submit' value=\"{$go}\" name='redirect' />\n";
1259                 $s .= "</form>\n";
1260                 return $s;
1261         }
1262
1263         function mainPageLink() {
1264                 $s = $this->makeKnownLinkObj( Title::newMainPage(), wfMsg( 'mainpage' ) );
1265                 return $s;
1266         }
1267
1268         function copyrightLink() {
1269                 $s = $this->makeKnownLink( wfMsgForContent( 'copyrightpage' ),
1270                   wfMsg( 'copyrightpagename' ) );
1271                 return $s;
1272         }
1273
1274         private function footerLink ( $desc, $page ) {
1275                 // if the link description has been set to "-" in the default language,
1276                 if ( wfMsgForContent( $desc )  == '-') {
1277                         // then it is disabled, for all languages.
1278                         return '';
1279                 } else {
1280                         // Otherwise, we display the link for the user, described in their
1281                         // language (which may or may not be the same as the default language),
1282                         // but we make the link target be the one site-wide page.
1283                         return $this->makeKnownLink( wfMsgForContent( $page ),
1284                                 wfMsgExt( $desc, array( 'parsemag', 'escapenoentities' ) ) );
1285                 }
1286         }
1287
1288         function privacyLink() {
1289                 return $this->footerLink( 'privacy', 'privacypage' );
1290         }
1291
1292         function aboutLink() {
1293                 return $this->footerLink( 'aboutsite', 'aboutpage' );
1294         }
1295
1296         function disclaimerLink() {
1297                 return $this->footerLink( 'disclaimers', 'disclaimerpage' );
1298         }
1299
1300         function editThisPage() {
1301                 global $wgOut, $wgTitle;
1302
1303                 if ( !$wgOut->isArticleRelated() ) {
1304                         $s = wfMsg( 'protectedpage' );
1305                 } else {
1306                         if( $wgTitle->userCan( 'edit' ) && $wgTitle->exists() ) {
1307                                 $t = wfMsg( 'editthispage' );
1308                         } elseif( $wgTitle->userCan( 'create' ) && !$wgTitle->exists() ) {
1309                                 $t = wfMsg( 'create-this-page' );
1310                         } else {
1311                                 $t = wfMsg( 'viewsource' );
1312                         }
1313
1314                         $s = $this->makeKnownLinkObj( $wgTitle, $t, $this->editUrlOptions() );
1315                 }
1316                 return $s;
1317         }
1318
1319         /**
1320          * Return URL options for the 'edit page' link.
1321          * This may include an 'oldid' specifier, if the current page view is such.
1322          *
1323          * @return string
1324          * @private
1325          */
1326         function editUrlOptions() {
1327                 global $wgArticle;
1328
1329                 if( $this->mRevisionId && ! $wgArticle->isCurrent() ) {
1330                         return "action=edit&oldid=" . intval( $this->mRevisionId );
1331                 } else {
1332                         return "action=edit";
1333                 }
1334         }
1335
1336         function deleteThisPage() {
1337                 global $wgUser, $wgTitle, $wgRequest;
1338
1339                 $diff = $wgRequest->getVal( 'diff' );
1340                 if ( $wgTitle->getArticleId() && ( ! $diff ) && $wgUser->isAllowed('delete') ) {
1341                         $t = wfMsg( 'deletethispage' );
1342
1343                         $s = $this->makeKnownLinkObj( $wgTitle, $t, 'action=delete' );
1344                 } else {
1345                         $s = '';
1346                 }
1347                 return $s;
1348         }
1349
1350         function protectThisPage() {
1351                 global $wgUser, $wgTitle, $wgRequest;
1352
1353                 $diff = $wgRequest->getVal( 'diff' );
1354                 if ( $wgTitle->getArticleId() && ( ! $diff ) && $wgUser->isAllowed('protect') ) {
1355                         if ( $wgTitle->isProtected() ) {
1356                                 $t = wfMsg( 'unprotectthispage' );
1357                                 $q = 'action=unprotect';
1358                         } else {
1359                                 $t = wfMsg( 'protectthispage' );
1360                                 $q = 'action=protect';
1361                         }
1362                         $s = $this->makeKnownLinkObj( $wgTitle, $t, $q );
1363                 } else {
1364                         $s = '';
1365                 }
1366                 return $s;
1367         }
1368
1369         function watchThisPage() {
1370                 global $wgOut, $wgTitle;
1371                 ++$this->mWatchLinkNum;
1372
1373                 if ( $wgOut->isArticleRelated() ) {
1374                         if ( $wgTitle->userIsWatching() ) {
1375                                 $t = wfMsg( 'unwatchthispage' );
1376                                 $q = 'action=unwatch';
1377                                 $id = "mw-unwatch-link".$this->mWatchLinkNum;
1378                         } else {
1379                                 $t = wfMsg( 'watchthispage' );
1380                                 $q = 'action=watch';
1381                                 $id = 'mw-watch-link'.$this->mWatchLinkNum;
1382                         }
1383                         $s = $this->makeKnownLinkObj( $wgTitle, $t, $q, '', '', " id=\"$id\"" );
1384                 } else {
1385                         $s = wfMsg( 'notanarticle' );
1386                 }
1387                 return $s;
1388         }
1389
1390         function moveThisPage() {
1391                 global $wgTitle;
1392
1393                 if ( $wgTitle->userCan( 'move' ) ) {
1394                         return $this->makeKnownLinkObj( SpecialPage::getTitleFor( 'Movepage' ),
1395                           wfMsg( 'movethispage' ), 'target=' . $wgTitle->getPrefixedURL() );
1396                 } else {
1397                         // no message if page is protected - would be redundant
1398                         return '';
1399                 }
1400         }
1401
1402         function historyLink() {
1403                 global $wgTitle;
1404
1405                 return $this->makeKnownLinkObj( $wgTitle,
1406                   wfMsg( 'history' ), 'action=history' );
1407         }
1408
1409         function whatLinksHere() {
1410                 global $wgTitle;
1411
1412                 return $this->makeKnownLinkObj(
1413                         SpecialPage::getTitleFor( 'Whatlinkshere', $wgTitle->getPrefixedDBkey() ),
1414                         wfMsg( 'whatlinkshere' ) );
1415         }
1416
1417         function userContribsLink() {
1418                 global $wgTitle;
1419
1420                 return $this->makeKnownLinkObj(
1421                         SpecialPage::getTitleFor( 'Contributions', $wgTitle->getDBkey() ),
1422                         wfMsg( 'contributions' ) );
1423         }
1424
1425         function showEmailUser( $id ) {
1426                 global $wgEnableEmail, $wgEnableUserEmail, $wgUser;
1427                 return $wgEnableEmail &&
1428                        $wgEnableUserEmail &&
1429                        $wgUser->isLoggedIn() && # show only to signed in users
1430                        0 != $id; # we can only email to non-anons ..
1431 #                      '' != $id->getEmail() && # who must have an email address stored ..
1432 #                      0 != $id->getEmailauthenticationtimestamp() && # .. which is authenticated
1433 #                      1 != $wgUser->getOption('disablemail'); # and not disabled
1434         }
1435
1436         function emailUserLink() {
1437                 global $wgTitle;
1438
1439                 return $this->makeKnownLinkObj(
1440                         SpecialPage::getTitleFor( 'Emailuser', $wgTitle->getDBkey() ),
1441                         wfMsg( 'emailuser' ) );
1442         }
1443
1444         function watchPageLinksLink() {
1445                 global $wgOut, $wgTitle;
1446
1447                 if ( ! $wgOut->isArticleRelated() ) {
1448                         return '(' . wfMsg( 'notanarticle' ) . ')';
1449                 } else {
1450                         return $this->makeKnownLinkObj(
1451                                 SpecialPage::getTitleFor( 'Recentchangeslinked', $wgTitle->getPrefixedDBkey() ),
1452                                 wfMsg( 'recentchangeslinked' ) );
1453                 }
1454         }
1455
1456         function trackbackLink() {
1457                 global $wgTitle;
1458
1459                 return "<a href=\"" . $wgTitle->trackbackURL() . "\">"
1460                         . wfMsg('trackbacklink') . "</a>";
1461         }
1462
1463         function otherLanguages() {
1464                 global $wgOut, $wgContLang, $wgHideInterlanguageLinks;
1465
1466                 if ( $wgHideInterlanguageLinks ) {
1467                         return '';
1468                 }
1469
1470                 $a = $wgOut->getLanguageLinks();
1471                 if ( 0 == count( $a ) ) {
1472                         return '';
1473                 }
1474
1475                 $s = wfMsg( 'otherlanguages' ) . ': ';
1476                 $first = true;
1477                 if($wgContLang->isRTL()) $s .= '<span dir="LTR">';
1478                 foreach( $a as $l ) {
1479                         if ( ! $first ) { $s .= ' | '; }
1480                         $first = false;
1481
1482                         $nt = Title::newFromText( $l );
1483                         $url = $nt->escapeFullURL();
1484                         $text = $wgContLang->getLanguageName( $nt->getInterwiki() );
1485
1486                         if ( '' == $text ) { $text = $l; }
1487                         $style = $this->getExternalLinkAttributes( $l, $text );
1488                         $s .= "<a href=\"{$url}\"{$style}>{$text}</a>";
1489                 }
1490                 if($wgContLang->isRTL()) $s .= '</span>';
1491                 return $s;
1492         }
1493
1494         function bugReportsLink() {
1495                 $s = $this->makeKnownLink( wfMsgForContent( 'bugreportspage' ),
1496                   wfMsg( 'bugreports' ) );
1497                 return $s;
1498         }
1499
1500         function talkLink() {
1501                 global $wgTitle;
1502
1503                 if ( NS_SPECIAL == $wgTitle->getNamespace() ) {
1504                         # No discussion links for special pages
1505                         return '';
1506                 }
1507
1508                 if( $wgTitle->isTalkPage() ) {
1509                         $link = $wgTitle->getSubjectPage();
1510                         switch( $link->getNamespace() ) {
1511                                 case NS_MAIN:
1512                                         $text = wfMsg( 'articlepage' );
1513                                         break;
1514                                 case NS_USER:
1515                                         $text = wfMsg( 'userpage' );
1516                                         break;
1517                                 case NS_PROJECT:
1518                                         $text = wfMsg( 'projectpage' );
1519                                         break;
1520                                 case NS_IMAGE:
1521                                         $text = wfMsg( 'imagepage' );
1522                                         break;
1523                                 case NS_MEDIAWIKI:
1524                                         $text = wfMsg( 'mediawikipage' );
1525                                         break;
1526                                 case NS_TEMPLATE:
1527                                         $text = wfMsg( 'templatepage' );
1528                                         break;
1529                                 case NS_HELP:
1530                                         $text = wfMsg( 'viewhelppage' );
1531                                         break;
1532                                 case NS_CATEGORY:
1533                                         $text = wfMsg( 'categorypage' );
1534                                         break;
1535                                 default:
1536                                         $text = wfMsg( 'articlepage' );
1537                         }
1538                 } else {
1539                         $link = $wgTitle->getTalkPage();
1540                         $text = wfMsg( 'talkpage' );
1541                 }
1542
1543                 $s = $this->makeLinkObj( $link, $text );
1544
1545                 return $s;
1546         }
1547
1548         function commentLink() {
1549                 global $wgTitle, $wgOut;
1550
1551                 if ( $wgTitle->getNamespace() == NS_SPECIAL ) {
1552                         return '';
1553                 }
1554
1555                 # __NEWSECTIONLINK___ changes behaviour here
1556                 # If it's present, the link points to this page, otherwise
1557                 # it points to the talk page
1558                 if( $wgTitle->isTalkPage() ) {
1559                         $title = $wgTitle;
1560                 } elseif( $wgOut->showNewSectionLink() ) {
1561                         $title = $wgTitle;
1562                 } else {
1563                         $title = $wgTitle->getTalkPage();
1564                 }
1565
1566                 return $this->makeKnownLinkObj( $title, wfMsg( 'postcomment' ), 'action=edit&section=new' );
1567         }
1568
1569         /* these are used extensively in SkinTemplate, but also some other places */
1570         static function makeMainPageUrl( $urlaction = '' ) {
1571                 $title = Title::newMainPage();
1572                 self::checkTitle( $title, '' );
1573                 return $title->getLocalURL( $urlaction );
1574         }
1575
1576         static function makeSpecialUrl( $name, $urlaction = '' ) {
1577                 $title = SpecialPage::getTitleFor( $name );
1578                 return $title->getLocalURL( $urlaction );
1579         }
1580
1581         static function makeSpecialUrlSubpage( $name, $subpage, $urlaction = '' ) {
1582                 $title = SpecialPage::getSafeTitleFor( $name, $subpage );
1583                 return $title->getLocalURL( $urlaction );
1584         }
1585
1586         static function makeI18nUrl( $name, $urlaction = '' ) {
1587                 $title = Title::newFromText( wfMsgForContent( $name ) );
1588                 self::checkTitle( $title, $name );
1589                 return $title->getLocalURL( $urlaction );
1590         }
1591
1592         static function makeUrl( $name, $urlaction = '' ) {
1593                 $title = Title::newFromText( $name );
1594                 self::checkTitle( $title, $name );
1595                 return $title->getLocalURL( $urlaction );
1596         }
1597
1598         # If url string starts with http, consider as external URL, else
1599         # internal
1600         static function makeInternalOrExternalUrl( $name ) {
1601                 if ( preg_match( '/^(?:' . wfUrlProtocols() . ')/', $name ) ) {
1602                         return $name;
1603                 } else {
1604                         return self::makeUrl( $name );
1605                 }
1606         }
1607
1608         # this can be passed the NS number as defined in Language.php
1609         static function makeNSUrl( $name, $urlaction = '', $namespace = NS_MAIN ) {
1610                 $title = Title::makeTitleSafe( $namespace, $name );
1611                 self::checkTitle( $title, $name );
1612                 return $title->getLocalURL( $urlaction );
1613         }
1614
1615         /* these return an array with the 'href' and boolean 'exists' */
1616         static function makeUrlDetails( $name, $urlaction = '' ) {
1617                 $title = Title::newFromText( $name );
1618                 self::checkTitle( $title, $name );
1619                 return array(
1620                         'href' => $title->getLocalURL( $urlaction ),
1621                         'exists' => $title->getArticleID() != 0 ? true : false
1622                 );
1623         }
1624
1625         /**
1626          * Make URL details where the article exists (or at least it's convenient to think so)
1627          */
1628         static function makeKnownUrlDetails( $name, $urlaction = '' ) {
1629                 $title = Title::newFromText( $name );
1630                 self::checkTitle( $title, $name );
1631                 return array(
1632                         'href' => $title->getLocalURL( $urlaction ),
1633                         'exists' => true
1634                 );
1635         }
1636
1637         # make sure we have some title to operate on
1638         static function checkTitle( &$title, $name ) {
1639                 if( !is_object( $title ) ) {
1640                         $title = Title::newFromText( $name );
1641                         if( !is_object( $title ) ) {
1642                                 $title = Title::newFromText( '--error: link target missing--' );
1643                         }
1644                 }
1645         }
1646
1647         /**
1648          * Build an array that represents the sidebar(s), the navigation bar among them
1649          *
1650          * @return array
1651          * @private
1652          */
1653         function buildSidebar() {
1654                 global $parserMemc, $wgEnableSidebarCache, $wgSidebarCacheExpiry;
1655                 global $wgLang, $wgContLang;
1656
1657                 $fname = 'SkinTemplate::buildSidebar';
1658
1659                 wfProfileIn( $fname );
1660
1661                 $key = wfMemcKey( 'sidebar' );
1662                 $cacheSidebar = $wgEnableSidebarCache &&
1663                         ($wgLang->getCode() == $wgContLang->getCode());
1664
1665                 if ($cacheSidebar) {
1666                         $cachedsidebar = $parserMemc->get( $key );
1667                         if ($cachedsidebar!="") {
1668                                 wfProfileOut($fname);
1669                                 return $cachedsidebar;
1670                         }
1671                 }
1672
1673                 $bar = array();
1674                 $lines = explode( "\n", wfMsgForContent( 'sidebar' ) );
1675                 $heading = '';
1676                 foreach ($lines as $line) {
1677                         if (strpos($line, '*') !== 0)
1678                                 continue;
1679                         if (strpos($line, '**') !== 0) {
1680                                 $line = trim($line, '* ');
1681                                 $heading = $line;
1682                         } else {
1683                                 if (strpos($line, '|') !== false) { // sanity check
1684                                         $line = explode( '|' , trim($line, '* '), 2 );
1685                                         $link = wfMsgForContent( $line[0] );
1686                                         if ($link == '-')
1687                                                 continue;
1688                                         if (wfEmptyMsg($line[1], $text = wfMsg($line[1])))
1689                                                 $text = $line[1];
1690                                         if (wfEmptyMsg($line[0], $link))
1691                                                 $link = $line[0];
1692
1693                                         if ( preg_match( '/^(?:' . wfUrlProtocols() . ')/', $link ) ) {
1694                                                 $href = $link;
1695                                         } else {
1696                                                 $title = Title::newFromText( $link );
1697                                                 if ( $title ) {
1698                                                         $title = $title->fixSpecialName();
1699                                                         $href = $title->getLocalURL();
1700                                                 } else {
1701                                                         $href = 'INVALID-TITLE';
1702                                                 }
1703                                         }
1704
1705                                         $bar[$heading][] = array(
1706                                                 'text' => $text,
1707                                                 'href' => $href,
1708                                                 'id' => 'n-' . strtr($line[1], ' ', '-'),
1709                                                 'active' => false
1710                                         );
1711                                 } else { continue; }
1712                         }
1713                 }
1714                 if ($cacheSidebar)
1715                         $parserMemc->set( $key, $bar, $wgSidebarCacheExpiry );
1716                 wfProfileOut( $fname );
1717                 return $bar;
1718         }
1719 }