includes/Skin.php

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