includes/Skin.php

   1 <?php
   2 if ( ! defined( 'MEDIAWIKI' ) )
   3         die( 1 );
   4
   5 /**
   6  *
   7  * @package MediaWiki
   8  * @subpackage Skins
   9  */
  10
  11 # See skin.txt
  12
  13 /**
  14  * The main skin class that provide methods and properties for all other skins.
  15  * This base class is also the "Standard" skin.
  16  * @package MediaWiki
  17  */
  18 class Skin extends Linker {
  19         /**#@+
  20          * @private
  21          */
  22         var $lastdate, $lastline;
  23         var $rc_cache ; # Cache for Enhanced Recent Changes
  24         var $rcCacheIndex ; # Recent Changes Cache Counter for visibility toggle
  25         var $rcMoveIndex;
  26         /**#@-*/
  27
  28         /** Constructor, call parent constructor */
  29         function Skin() { parent::Linker(); }
  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                         // The old built-in skin
 101                         return 'standard';
 102                 }
 103         }
 104
 105         /**
 106          * Factory method for loading a skin of a given type
 107          * @param string $key 'monobook', 'standard', etc
 108          * @return Skin
 109          * @static
 110          */
 111         static function &newFromKey( $key ) {
 112                 global $wgStyleDirectory;
 113
 114                 $key = Skin::normalizeKey( $key );
 115
 116                 $skinNames = Skin::getSkinNames();
 117                 $skinName = $skinNames[$key];
 118
 119                 # Grab the skin class and initialise it.
 120                 // Preload base classes to work around APC/PHP5 bug
 121                 $deps = "{$wgStyleDirectory}/{$skinName}.deps.php";
 122                 if( file_exists( $deps ) ) include_once( $deps );
 123                 require_once( "{$wgStyleDirectory}/{$skinName}.php" );
 124
 125                 # Check if we got if not failback to default skin
 126                 $className = 'Skin'.$skinName;
 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                         $className = 'SkinStandard';
 134                         require_once( "{$wgStyleDirectory}/Standard.php" );
 135                 }
 136                 $skin = new $className;
 137                 return $skin;
 138         }
 139
 140         /** @return string path to the skin stylesheet */
 141         function getStylesheet() {
 142                 return 'common/wikistandard.css';
 143         }
 144
 145         /** @return string skin name */
 146         function getSkinName() {
 147                 return 'standard';
 148         }
 149
 150         function qbSetting() {
 151                 global $wgOut, $wgUser;
 152
 153                 if ( $wgOut->isQuickbarSuppressed() ) { return 0; }
 154                 $q = $wgUser->getOption( 'quickbar' );
 155                 if ( '' == $q ) { $q = 0; }
 156                 return $q;
 157         }
 158
 159         function initPage( &$out ) {
 160                 global $wgFavicon, $wgScriptPath, $wgSitename, $wgLanguageCode, $wgLanguageNames;
 161
 162                 $fname = 'Skin::initPage';
 163                 wfProfileIn( $fname );
 164
 165                 if( false !== $wgFavicon ) {
 166                         $out->addLink( array( 'rel' => 'shortcut icon', 'href' => $wgFavicon ) );
 167                 }
 168
 169                 # OpenSearch description link
 170                 $out->addLink( array(
 171                         'rel' => 'search',
 172                         'type' => 'application/opensearchdescription+xml',
 173                         'href' => "$wgScriptPath/opensearch_desc.php",
 174                         'title' => "$wgSitename ({$wgLanguageNames[$wgLanguageCode]})",
 175                 ));
 176
 177                 $this->addMetadataLinks($out);
 178
 179                 $this->mRevisionId = $out->mRevisionId;
 180
 181                 $this->preloadExistence();
 182
 183                 wfProfileOut( $fname );
 184         }
 185
 186         /**
 187          * Preload the existence of three commonly-requested pages in a single query
 188          */
 189         function preloadExistence() {
 190                 global $wgUser, $wgTitle;
 191
 192                 if ( $wgTitle->isTalkPage() ) {
 193                         $otherTab = $wgTitle->getSubjectPage();
 194                 } else {
 195                         $otherTab = $wgTitle->getTalkPage();
 196                 }
 197                 $lb = new LinkBatch( array(
 198                         $wgUser->getUserPage(),
 199                         $wgUser->getTalkPage(),
 200                         $otherTab
 201                 ));
 202                 $lb->execute();
 203         }
 204
 205         function addMetadataLinks( &$out ) {
 206                 global $wgTitle, $wgEnableDublinCoreRdf, $wgEnableCreativeCommonsRdf;
 207                 global $wgRightsPage, $wgRightsUrl;
 208
 209                 if( $out->isArticleRelated() ) {
 210                         # note: buggy CC software only reads first "meta" link
 211                         if( $wgEnableCreativeCommonsRdf ) {
 212                                 $out->addMetadataLink( array(
 213                                         'title' => 'Creative Commons',
 214                                         'type' => 'application/rdf+xml',
 215                                         'href' => $wgTitle->getLocalURL( 'action=creativecommons') ) );
 216                         }
 217                         if( $wgEnableDublinCoreRdf ) {
 218                                 $out->addMetadataLink( array(
 219                                         'title' => 'Dublin Core',
 220                                         'type' => 'application/rdf+xml',
 221                                         'href' => $wgTitle->getLocalURL( 'action=dublincore' ) ) );
 222                         }
 223                 }
 224                 $copyright = '';
 225                 if( $wgRightsPage ) {
 226                         $copy = Title::newFromText( $wgRightsPage );
 227                         if( $copy ) {
 228                                 $copyright = $copy->getLocalURL();
 229                         }
 230                 }
 231                 if( !$copyright && $wgRightsUrl ) {
 232                         $copyright = $wgRightsUrl;
 233                 }
 234                 if( $copyright ) {
 235                         $out->addLink( array(
 236                                 'rel' => 'copyright',
 237                                 'href' => $copyright ) );
 238                 }
 239         }
 240
 241         function outputPage( &$out ) {
 242                 global $wgDebugComments;
 243
 244                 wfProfileIn( 'Skin::outputPage' );
 245                 $this->initPage( $out );
 246
 247                 $out->out( $out->headElement() );
 248
 249                 $out->out( "\n<body" );
 250                 $ops = $this->getBodyOptions();
 251                 foreach ( $ops as $name => $val ) {
 252                         $out->out( " $name='$val'" );
 253                 }
 254                 $out->out( ">\n" );
 255                 if ( $wgDebugComments ) {
 256                         $out->out( "<!-- Wiki debugging output:\n" .
 257                           $out->mDebugtext . "-->\n" );
 258                 }
 259
 260                 $out->out( $this->beforeContent() );
 261
 262                 $out->out( $out->mBodytext . "\n" );
 263
 264                 $out->out( $this->afterContent() );
 265
 266                 $out->out( $this->bottomScripts() );
 267
 268                 $out->out( $out->reportTime() );
 269
 270                 $out->out( "\n</body></html>" );
 271         }
 272
 273         static function makeGlobalVariablesScript( $data ) {
 274                 $r = '<script type= "' . $data['jsmimetype'] . '">
 275                         var skin = "' . Xml::escapeJsString( $data['skinname'] ) . '";
 276                         var stylepath = "' . Xml::escapeJsString( $data['stylepath'] ) . '";
 277
 278                         var wgArticlePath = "' . Xml::escapeJsString( $data['articlepath'] ) . '";
 279                         var wgScriptPath = "' . Xml::escapeJsString( $data['scriptpath'] ) . '";
 280                         var wgServer = "' . Xml::escapeJsString( $data['serverurl'] ) . '";
 281
 282                         var wgCanonicalNamespace = "' . Xml::escapeJsString( $data['nscanonical'] ) . '";
 283                         var wgNamespaceNumber = ' . (int)$data['nsnumber'] . ';
 284                         var wgPageName = "' . Xml::escapeJsString( $data['titleprefixeddbkey'] ) . '";
 285                         var wgTitle = "' . Xml::escapeJsString( $data['titletext'] ) . '";
 286                         var wgArticleId = ' . (int)$data['articleid'] . ';
 287                         var wgCurRevisionId = ' . ( int ) $data['currevisionid'] . ';
 288                         var wgOldid = ' . ( int ) $data['oldid'] . ';
 289                         var wgIsArticle = ' . ( $data['isarticle'] ? 'true' : 'false' ) . ';
 290
 291                         var wgUserName = ' . ( $data['username'] == NULL ? 'null' : ( '"' . Xml::escapeJsString( $data['username'] ) . '"' ) ) . ';
 292                         var wgUserLanguage = "' . Xml::escapeJsString( $data['userlang'] ) . '";
 293                         var wgContentLanguage = "' . Xml::escapeJsString( $data['lang'] ) . '";
 294                 </script>
 295                 ';
 296
 297                 return $r;
 298         }
 299
 300         function getHeadScripts() {
 301                 global $wgStylePath, $wgUser, $wgAllowUserJs, $wgJsMimeType, $wgStyleVersion;
 302                 global $wgArticlePath, $wgScriptPath, $wgServer, $wgContLang, $wgLang;
 303                 global $wgTitle, $wgCanonicalNamespaceNames, $wgOut, $wgArticle, $wgRequest;
 304
 305                 $ns = $wgTitle->getNamespace();
 306                 $nsname = isset( $wgCanonicalNamespaceNames[ $ns ] ) ? $wgCanonicalNamespaceNames[ $ns ] : $wgTitle->getNsText();
 307
 308                 $vars = array(
 309                         'jsmimetype' => $wgJsMimeType,
 310                         'skinname' => $this->getSkinName(),
 311                         'stylepath' => $wgStylePath,
 312                         'articlepath' => $wgArticlePath,
 313                         'scriptpath' => $wgScriptPath,
 314                         'serverurl' => $wgServer,
 315                         'nscanonical' => $nsname,
 316                         'nsnumber' => $wgTitle->getNamespace(),
 317                         'titleprefixeddbkey' => $wgTitle->getPrefixedDBKey(),
 318                         'titletext' => $wgTitle->getText(),
 319                         'articleid' => $wgTitle->getArticleId(),
 320                         'currevisionid' => isset( $wgArticle ) ? $wgArticle->getLatest() : 0,
 321                         'oldid' => $wgRequest->getVal( 'oldid' ),
 322                         'isarticle' => $wgOut->isArticle(),
 323                         'username' => $wgUser->isAnon() ? NULL : $wgUser->getName(),
 324                         'userlang' => $wgLang->getCode(),
 325                         'lang' => $wgContLang->getCode(),
 326                 );
 327
 328                 $r = self::makeGlobalVariablesScript( $vars );
 329
 330                 $r .= "<script type=\"{$wgJsMimeType}\" src=\"{$wgStylePath}/common/wikibits.js?$wgStyleVersion\"></script>\n";
 331                 global $wgUseSiteJs;
 332                 if ($wgUseSiteJs) {
 333                         if ($wgUser->isLoggedIn()) {
 334                                 $r .= "<script type=\"$wgJsMimeType\" src=\"".htmlspecialchars(self::makeUrl('-','action=raw&smaxage=0&gen=js'))."\"><!-- site js --></script>\n";
 335                         } else {
 336                                 $r .= "<script type=\"$wgJsMimeType\" src=\"".htmlspecialchars(self::makeUrl('-','action=raw&gen=js'))."\"><!-- site js --></script>\n";
 337                         }
 338                 }
 339                 if( $wgAllowUserJs && $wgUser->isLoggedIn() ) {
 340                         $userpage = $wgUser->getUserPage();
 341                         $userjs = htmlspecialchars( self::makeUrl(
 342                                 $userpage->getPrefixedText().'/'.$this->getSkinName().'.js',
 343                                 'action=raw&ctype='.$wgJsMimeType));
 344                         $r .= '<script type="'.$wgJsMimeType.'" src="'.$userjs."\"></script>\n";
 345                 }
 346                 return $r;
 347         }
 348
 349         /**
 350          * To make it harder for someone to slip a user a fake
 351          * user-JavaScript or user-CSS preview, a random token
 352          * is associated with the login session. If it's not
 353          * passed back with the preview request, we won't render
 354          * the code.
 355          *
 356          * @param string $action
 357          * @return bool
 358          * @private
 359          */
 360         function userCanPreview( $action ) {
 361                 global $wgTitle, $wgRequest, $wgUser;
 362
 363                 if( $action != 'submit' )
 364                         return false;
 365                 if( !$wgRequest->wasPosted() )
 366                         return false;
 367                 if( !$wgTitle->userCanEditCssJsSubpage() )
 368                         return false;
 369                 return $wgUser->matchEditToken(
 370                         $wgRequest->getVal( 'wpEditToken' ) );
 371         }
 372
 373         # get the user/site-specific stylesheet, SkinTemplate loads via RawPage.php (settings are cached that way)
 374         function getUserStylesheet() {
 375                 global $wgStylePath, $wgRequest, $wgContLang, $wgSquidMaxage, $wgStyleVersion;
 376                 $sheet = $this->getStylesheet();
 377                 $s = "@import \"$wgStylePath/common/common.css?$wgStyleVersion\";\n";
 378                 $s .= "@import \"$wgStylePath/$sheet?$wgStyleVersion\";\n";
 379                 if($wgContLang->isRTL()) $s .= "@import \"$wgStylePath/common/common_rtl.css?$wgStyleVersion\";\n";
 380
 381                 $query = "usemsgcache=yes&action=raw&ctype=text/css&smaxage=$wgSquidMaxage";
 382                 $s .= '@import "' . self::makeNSUrl( 'Common.css', $query, NS_MEDIAWIKI ) . "\";\n" .
 383                         '@import "' . self::makeNSUrl( ucfirst( $this->getSkinName() . '.css' ), $query, NS_MEDIAWIKI ) . "\";\n";
 384
 385                 $s .= $this->doGetUserStyles();
 386                 return $s."\n";
 387         }
 388
 389         /**
 390          * This returns MediaWiki:Common.js.  For some bizarre reason, it does
 391          * *not* return any custom user JS from user subpages.  Huh?
 392          *
 393          * @return string
 394          */
 395         function getUserJs() {
 396                 $fname = 'Skin::getUserJs';
 397                 wfProfileIn( $fname );
 398
 399                 global $wgStylePath;
 400                 $s = "/* generated javascript */\n";
 401                 $s .= "var skin = '{$this->skinname}';\nvar stylepath = '{$wgStylePath}';";
 402                 $s .= "\n\n/* MediaWiki:Common.js */\n";
 403                 $commonJs = wfMsgForContent('Common.js');
 404                 if ( !wfEmptyMsg ( 'Common.js', $commonJs ) ) {
 405                         $s .= $commonJs;
 406                 }
 407
 408                 wfProfileOut( $fname );
 409                 return $s;
 410     }
 411
 412         /**
 413          * Return html code that include User stylesheets
 414          */
 415         function getUserStyles() {
 416                 $s = "<style type='text/css'>\n";
 417                 $s .= "/*/*/ /*<![CDATA[*/\n"; # <-- Hide the styles from Netscape 4 without hiding them from IE/Mac
 418                 $s .= $this->getUserStylesheet();
 419                 $s .= "/*]]>*/ /* */\n";
 420                 $s .= "</style>\n";
 421                 return $s;
 422         }
 423
 424         /**
 425          * Some styles that are set by user through the user settings interface.
 426          */
 427         function doGetUserStyles() {
 428                 global $wgUser, $wgUser, $wgRequest, $wgTitle, $wgAllowUserCss;
 429
 430                 $s = '';
 431
 432                 if( $wgAllowUserCss && $wgUser->isLoggedIn() ) { # logged in
 433                         if($wgTitle->isCssSubpage() && $this->userCanPreview( $wgRequest->getText( 'action' ) ) ) {
 434                                 $s .= $wgRequest->getText('wpTextbox1');
 435                         } else {
 436                                 $userpage = $wgUser->getUserPage();
 437                                 $s.= '@import "'.self::makeUrl(
 438                                         $userpage->getPrefixedText().'/'.$this->getSkinName().'.css',
 439                                         'action=raw&ctype=text/css').'";'."\n";
 440                         }
 441                 }
 442
 443                 return $s . $this->reallyDoGetUserStyles();
 444         }
 445
 446         function reallyDoGetUserStyles() {
 447                 global $wgUser;
 448                 $s = '';
 449                 if (($undopt = $wgUser->getOption("underline")) != 2) {
 450                         $underline = $undopt ? 'underline' : 'none';
 451                         $s .= "a { text-decoration: $underline; }\n";
 452                 }
 453                 if( $wgUser->getOption( 'highlightbroken' ) ) {
 454                         $s .= "a.new, #quickbar a.new { color: #CC2200; }\n";
 455                 } else {
 456                         $s .= <<<END
 457 a.new, #quickbar a.new,
 458 a.stub, #quickbar a.stub {
 459         color: inherit;
 460         text-decoration: inherit;
 461 }
 462 a.new:after, #quickbar a.new:after {
 463         content: "?";
 464         color: #CC2200;
 465         text-decoration: $underline;
 466 }
 467 a.stub:after, #quickbar a.stub:after {
 468         content: "!";
 469         color: #772233;
 470         text-decoration: $underline;
 471 }
 472 END;
 473                 }
 474                 if( $wgUser->getOption( 'justify' ) ) {
 475                         $s .= "#article, #bodyContent { text-align: justify; }\n";
 476                 }
 477                 if( !$wgUser->getOption( 'showtoc' ) ) {
 478                         $s .= "#toc { display: none; }\n";
 479                 }
 480                 if( !$wgUser->getOption( 'editsection' ) ) {
 481                         $s .= ".editsection { display: none; }\n";
 482                 }
 483                 return $s;
 484         }
 485
 486         function getBodyOptions() {
 487                 global $wgUser, $wgTitle, $wgOut, $wgRequest, $wgContLang;
 488
 489                 extract( $wgRequest->getValues( 'oldid', 'redirect', 'diff' ) );
 490
 491                 if ( 0 != $wgTitle->getNamespace() ) {
 492                         $a = array( 'bgcolor' => '#ffffec' );
 493                 }
 494                 else $a = array( 'bgcolor' => '#FFFFFF' );
 495                 if($wgOut->isArticle() && $wgUser->getOption('editondblclick') &&
 496                   $wgTitle->userCanEdit() ) {
 497                         $s = $wgTitle->getFullURL( $this->editUrlOptions() );
 498                         $s = 'document.location = "' .wfEscapeJSString( $s ) .'";';
 499                         $a += array ('ondblclick' => $s);
 500
 501                 }
 502                 $a['onload'] = $wgOut->getOnloadHandler();
 503                 if( $wgUser->getOption( 'editsectiononrightclick' ) ) {
 504                         if( $a['onload'] != '' ) {
 505                                 $a['onload'] .= ';';
 506                         }
 507                         $a['onload'] .= 'setupRightClickEdit()';
 508                 }
 509                 $a['class'] = 'ns-'.$wgTitle->getNamespace().' '.($wgContLang->isRTL() ? "rtl" : "ltr").
 510                 ' '.Sanitizer::escapeId( 'page-'.$wgTitle->getPrefixedText() );
 511                 return $a;
 512         }
 513
 514         /**
 515          * URL to the logo
 516          */
 517         function getLogo() {
 518                 global $wgLogo;
 519                 return $wgLogo;
 520         }
 521
 522         /**
 523          * This will be called immediately after the <body> tag.  Split into
 524          * two functions to make it easier to subclass.
 525          */
 526         function beforeContent() {
 527                 return $this->doBeforeContent();
 528         }
 529
 530         function doBeforeContent() {
 531                 global $wgContLang;
 532                 $fname = 'Skin::doBeforeContent';
 533                 wfProfileIn( $fname );
 534
 535                 $s = '';
 536                 $qb = $this->qbSetting();
 537
 538                 if( $langlinks = $this->otherLanguages() ) {
 539                         $rows = 2;
 540                         $borderhack = '';
 541                 } else {
 542                         $rows = 1;
 543                         $langlinks = false;
 544                         $borderhack = 'class="top"';
 545                 }
 546
 547                 $s .= "\n<div id='content'>\n<div id='topbar'>\n" .
 548                   "<table border='0' cellspacing='0' width='98%'>\n<tr>\n";
 549
 550                 $shove = ($qb != 0);
 551                 $left = ($qb == 1 || $qb == 3);
 552                 if($wgContLang->isRTL()) $left = !$left;
 553
 554                 if ( !$shove ) {
 555                         $s .= "<td class='top' align='left' valign='top' rowspan='{$rows}'>\n" .
 556                           $this->logoText() . '</td>';
 557                 } elseif( $left ) {
 558                         $s .= $this->getQuickbarCompensator( $rows );
 559                 }
 560                 $l = $wgContLang->isRTL() ? 'right' : 'left';
 561                 $s .= "<td {$borderhack} align='$l' valign='top'>\n";
 562
 563                 $s .= $this->topLinks() ;
 564                 $s .= "<p class='subtitle'>" . $this->pageTitleLinks() . "</p>\n";
 565
 566                 $r = $wgContLang->isRTL() ? "left" : "right";
 567                 $s .= "</td>\n<td {$borderhack} valign='top' align='$r' nowrap='nowrap'>";
 568                 $s .= $this->nameAndLogin();
 569                 $s .= "\n<br />" . $this->searchForm() . "</td>";
 570
 571                 if ( $langlinks ) {
 572                         $s .= "</tr>\n<tr>\n<td class='top' colspan=\"2\">$langlinks</td>\n";
 573                 }
 574
 575                 if ( $shove && !$left ) { # Right
 576                         $s .= $this->getQuickbarCompensator( $rows );
 577                 }
 578                 $s .= "</tr>\n</table>\n</div>\n";
 579                 $s .= "\n<div id='article'>\n";
 580
 581                 $notice = wfGetSiteNotice();
 582                 if( $notice ) {
 583                         $s .= "\n<div id='siteNotice'>$notice</div>\n";
 584                 }
 585                 $s .= $this->pageTitle();
 586                 $s .= $this->pageSubtitle() ;
 587                 $s .= $this->getCategories();
 588                 wfProfileOut( $fname );
 589                 return $s;
 590         }
 591
 592
 593         function getCategoryLinks () {
 594                 global $wgOut, $wgTitle, $wgUseCategoryBrowser;
 595                 global $wgContLang;
 596
 597                 if( count( $wgOut->mCategoryLinks ) == 0 ) return '';
 598
 599                 # Separator
 600                 $sep = wfMsgHtml( 'catseparator' );
 601
 602                 // Use Unicode bidi embedding override characters,
 603                 // to make sure links don't smash each other up in ugly ways.
 604                 $dir = $wgContLang->isRTL() ? 'rtl' : 'ltr';
 605                 $embed = "<span dir='$dir'>";
 606                 $pop = '</span>';
 607                 $t = $embed . implode ( "{$pop} {$sep} {$embed}" , $wgOut->mCategoryLinks ) . $pop;
 608
 609                 $msg = wfMsgExt( 'pagecategories', array( 'parsemag', 'escape' ), count( $wgOut->mCategoryLinks ) );
 610                 $s = $this->makeLinkObj( Title::newFromText( wfMsgForContent('pagecategorieslink') ), $msg )
 611                         . ': ' . $t;
 612
 613                 # optional 'dmoz-like' category browser. Will be shown under the list
 614                 # of categories an article belong to
 615                 if($wgUseCategoryBrowser) {
 616                         $s .= '<br /><hr />';
 617
 618                         # get a big array of the parents tree
 619                         $parenttree = $wgTitle->getParentCategoryTree();
 620                         # Skin object passed by reference cause it can not be
 621                         # accessed under the method subfunction drawCategoryBrowser
 622                         $tempout = explode("\n", Skin::drawCategoryBrowser($parenttree, $this) );
 623                         # Clean out bogus first entry and sort them
 624                         unset($tempout[0]);
 625                         asort($tempout);
 626                         # Output one per line
 627                         $s .= implode("<br />\n", $tempout);
 628                 }
 629
 630                 return $s;
 631         }
 632
 633         /** Render the array as a serie of links.
 634          * @param $tree Array: categories tree returned by Title::getParentCategoryTree
 635          * @param &skin Object: skin passed by reference
 636          * @return String separated by &gt;, terminate with "\n"
 637          */
 638         function drawCategoryBrowser($tree, &$skin) {
 639                 $return = '';
 640                 foreach ($tree as $element => $parent) {
 641                         if (empty($parent)) {
 642                                 # element start a new list
 643                                 $return .= "\n";
 644                         } else {
 645                                 # grab the others elements
 646                                 $return .= Skin::drawCategoryBrowser($parent, $skin) . ' &gt; ';
 647                         }
 648                         # add our current element to the list
 649                         $eltitle = Title::NewFromText($element);
 650                         $return .=  $skin->makeLinkObj( $eltitle, $eltitle->getText() ) ;
 651                 }
 652                 return $return;
 653         }
 654
 655         function getCategories() {
 656                 $catlinks=$this->getCategoryLinks();
 657                 if(!empty($catlinks)) {
 658                         return "<p class='catlinks'>{$catlinks}</p>";
 659                 }
 660         }
 661
 662         function getQuickbarCompensator( $rows = 1 ) {
 663                 return "<td width='152' rowspan='{$rows}'>&nbsp;</td>";
 664         }
 665
 666         /**
 667          * This gets called shortly before the \</body\> tag.
 668          * @return String HTML to be put before \</body\>
 669          */
 670         function afterContent() {
 671                 $printfooter = "<div class=\"printfooter\">\n" . $this->printFooter() . "</div>\n";
 672                 return $printfooter . $this->doAfterContent();
 673         }
 674
 675         /**
 676          * This gets called shortly before the \</body\> tag.
 677          * @return String HTML-wrapped JS code to be put before \</body\>
 678          */
 679         function bottomScripts() {
 680                 global $wgJsMimeType;
 681                 return "\n\t\t<script type=\"$wgJsMimeType\">if (window.runOnloadHook) runOnloadHook();</script>\n";
 682         }
 683
 684         /** @return string Retrievied from HTML text */
 685         function printSource() {
 686                 global $wgTitle;
 687                 $url = htmlspecialchars( $wgTitle->getFullURL() );
 688                 return wfMsg( 'retrievedfrom', '<a href="'.$url.'">'.$url.'</a>' );
 689         }
 690
 691         function printFooter() {
 692                 return "<p>" .  $this->printSource() .
 693                         "</p>\n\n<p>" . $this->pageStats() . "</p>\n";
 694         }
 695
 696         /** overloaded by derived classes */
 697         function doAfterContent() { }
 698
 699         function pageTitleLinks() {
 700                 global $wgOut, $wgTitle, $wgUser, $wgRequest;
 701
 702                 $oldid = $wgRequest->getVal( 'oldid' );
 703                 $diff = $wgRequest->getVal( 'diff' );
 704                 $action = $wgRequest->getText( 'action' );
 705
 706                 $s = $this->printableLink();
 707                 $disclaimer = $this->disclaimerLink(); # may be empty
 708                 if( $disclaimer ) {
 709                         $s .= ' | ' . $disclaimer;
 710                 }
 711                 $privacy = $this->privacyLink(); # may be empty too
 712                 if( $privacy ) {
 713                         $s .= ' | ' . $privacy;
 714                 }
 715
 716                 if ( $wgOut->isArticleRelated() ) {
 717                         if ( $wgTitle->getNamespace() == NS_IMAGE ) {
 718                                 $name = $wgTitle->getDBkey();
 719                                 $image = new Image( $wgTitle );
 720                                 if( $image->exists() ) {
 721                                         $link = htmlspecialchars( $image->getURL() );
 722                                         $style = $this->getInternalLinkAttributes( $link, $name );
 723                                         $s .= " | <a href=\"{$link}\"{$style}>{$name}</a>";
 724                                 }
 725                         }
 726                 }
 727                 if ( 'history' == $action || isset( $diff ) || isset( $oldid ) ) {
 728                         $s .= ' | ' . $this->makeKnownLinkObj( $wgTitle,
 729                                         wfMsg( 'currentrev' ) );
 730                 }
 731
 732                 if ( $wgUser->getNewtalk() ) {
 733                         # do not show "You have new messages" text when we are viewing our
 734                         # own talk page
 735                         if( !$wgTitle->equals( $wgUser->getTalkPage() ) ) {
 736                                 $tl = $this->makeKnownLinkObj( $wgUser->getTalkPage(), wfMsgHtml( 'newmessageslink' ), 'redirect=no' );
 737                                 $dl = $this->makeKnownLinkObj( $wgUser->getTalkPage(), wfMsgHtml( 'newmessagesdifflink' ), 'diff=cur' );
 738                                 $s.= ' | <strong>'. wfMsg( 'youhavenewmessages', $tl, $dl ) . '</strong>';
 739                                 # disable caching
 740                                 $wgOut->setSquidMaxage(0);
 741                                 $wgOut->enableClientCache(false);
 742                         }
 743                 }
 744
 745                 $undelete = $this->getUndeleteLink();
 746                 if( !empty( $undelete ) ) {
 747                         $s .= ' | '.$undelete;
 748                 }
 749                 return $s;
 750         }
 751
 752         function getUndeleteLink() {
 753                 global $wgUser, $wgTitle, $wgContLang, $action;
 754                 if(     $wgUser->isAllowed( 'deletedhistory' ) &&
 755                         (($wgTitle->getArticleId() == 0) || ($action == "history")) &&
 756                         ($n = $wgTitle->isDeleted() ) )
 757                 {
 758                         if ( $wgUser->isAllowed( 'delete' ) ) {
 759                                 $msg = 'thisisdeleted';
 760                         } else {
 761                                 $msg = 'viewdeleted';
 762                         }
 763                         return wfMsg( $msg,
 764                                 $this->makeKnownLink(
 765                                         $wgContLang->SpecialPage( 'Undelete/' . $wgTitle->getPrefixedDBkey() ),
 766                                         wfMsgExt( 'restorelink', array( 'parsemag', 'escape' ), $n ) ) );
 767                 }
 768                 return '';
 769         }
 770
 771         function printableLink() {
 772                 global $wgOut, $wgFeedClasses, $wgRequest;
 773
 774                 $baseurl = $_SERVER['REQUEST_URI'];
 775                 if( strpos( '?', $baseurl ) == false ) {
 776                         $baseurl .= '?';
 777                 } else {
 778                         $baseurl .= '&';
 779                 }
 780                 $baseurl = htmlspecialchars( $baseurl );
 781                 $printurl = $wgRequest->escapeAppendQuery( 'printable=yes' );
 782
 783                 $s = "<a href=\"$printurl\">" . wfMsg( 'printableversion' ) . '</a>';
 784                 if( $wgOut->isSyndicated() ) {
 785                         foreach( $wgFeedClasses as $format => $class ) {
 786                                 $feedurl = $wgRequest->escapeAppendQuery( "feed=$format" );
 787                                 $s .= " | <a href=\"$feedurl\">{$format}</a>";
 788                         }
 789                 }
 790                 return $s;
 791         }
 792
 793         function pageTitle() {
 794                 global $wgOut;
 795                 $s = '<h1 class="pagetitle">' . htmlspecialchars( $wgOut->getPageTitle() ) . '</h1>';
 796                 return $s;
 797         }
 798
 799         function pageSubtitle() {
 800                 global $wgOut;
 801
 802                 $sub = $wgOut->getSubtitle();
 803                 if ( '' == $sub ) {
 804                         global $wgExtraSubtitle;
 805                         $sub = wfMsg( 'tagline' ) . $wgExtraSubtitle;
 806                 }
 807                 $subpages = $this->subPageSubtitle();
 808                 $sub .= !empty($subpages)?"</p><p class='subpages'>$subpages":'';
 809                 $s = "<p class='subtitle'>{$sub}</p>\n";
 810                 return $s;
 811         }
 812
 813         function subPageSubtitle() {
 814                 global $wgOut,$wgTitle,$wgNamespacesWithSubpages;
 815                 $subpages = '';
 816                 if($wgOut->isArticle() && !empty($wgNamespacesWithSubpages[$wgTitle->getNamespace()])) {
 817                         $ptext=$wgTitle->getPrefixedText();
 818                         if(preg_match('/\//',$ptext)) {
 819                                 $links = explode('/',$ptext);
 820                                 $c = 0;
 821                                 $growinglink = '';
 822                                 foreach($links as $link) {
 823                                         $c++;
 824                                         if ($c<count($links)) {
 825                                                 $growinglink .= $link;
 826                                                 $getlink = $this->makeLink( $growinglink, htmlspecialchars( $link ) );
 827                                                 if(preg_match('/class="new"/i',$getlink)) { break; } # this is a hack, but it saves time
 828                                                 if ($c>1) {
 829                                                         $subpages .= ' | ';
 830                                                 } else  {
 831                                                         $subpages .= '&lt; ';
 832                                                 }
 833                                                 $subpages .= $getlink;
 834                                                 $growinglink .= '/';
 835                                         }
 836                                 }
 837                         }
 838                 }
 839                 return $subpages;
 840         }
 841
 842         function nameAndLogin() {
 843                 global $wgUser, $wgTitle, $wgLang, $wgContLang, $wgShowIPinHeader;
 844
 845                 $lo = $wgContLang->specialPage( 'Userlogout' );
 846
 847                 $s = '';
 848                 if ( $wgUser->isAnon() ) {
 849                         if( $wgShowIPinHeader && isset( $_COOKIE[ini_get('session.name')] ) ) {
 850                                 $n = wfGetIP();
 851
 852                                 $tl = $this->makeKnownLinkObj( $wgUser->getTalkPage(),
 853                                   $wgLang->getNsText( NS_TALK ) );
 854
 855                                 $s .= $n . ' ('.$tl.')';
 856                         } else {
 857                                 $s .= wfMsg('notloggedin');
 858                         }
 859
 860                         $rt = $wgTitle->getPrefixedURL();
 861                         if ( 0 == strcasecmp( urlencode( $lo ), $rt ) ) {
 862                                 $q = '';
 863                         } else { $q = "returnto={$rt}"; }
 864
 865                         $s .= "\n<br />" . $this->makeKnownLinkObj(
 866                                 SpecialPage::getTitleFor( 'Userlogin' ),
 867                                 wfMsg( 'login' ), $q );
 868                 } else {
 869                         $n = $wgUser->getName();
 870                         $rt = $wgTitle->getPrefixedURL();
 871                         $tl = $this->makeKnownLinkObj( $wgUser->getTalkPage(),
 872                           $wgLang->getNsText( NS_TALK ) );
 873
 874                         $tl = " ({$tl})";
 875
 876                         $s .= $this->makeKnownLinkObj( $wgUser->getUserPage(),
 877                           $n ) . "{$tl}<br />" .
 878                           $this->makeKnownLinkObj( SpecialPage::getTitleFor( 'Userlogout' ), wfMsg( 'logout' ),
 879                           "returnto={$rt}" ) . ' | ' .
 880                           $this->specialLink( 'preferences' );
 881                 }
 882                 $s .= ' | ' . $this->makeKnownLink( wfMsgForContent( 'helppage' ),
 883                   wfMsg( 'help' ) );
 884
 885                 return $s;
 886         }
 887
 888         function getSearchLink() {
 889                 $searchPage = SpecialPage::getTitleFor( 'Search' );
 890                 return $searchPage->getLocalURL();
 891         }
 892
 893         function escapeSearchLink() {
 894                 return htmlspecialchars( $this->getSearchLink() );
 895         }
 896
 897         function searchForm() {
 898                 global $wgRequest;
 899                 $search = $wgRequest->getText( 'search' );
 900
 901                 $s = '<form name="search" class="inline" method="post" action="'
 902                   . $this->escapeSearchLink() . "\">\n"
 903                   . '<input type="text" name="search" size="19" value="'
 904                   . htmlspecialchars(substr($search,0,256)) . "\" />\n"
 905                   . '<input type="submit" name="go" value="' . wfMsg ('searcharticle') . '" />&nbsp;'
 906                   . '<input type="submit" name="fulltext" value="' . wfMsg ('searchbutton') . "\" />\n</form>";
 907
 908                 return $s;
 909         }
 910
 911         function topLinks() {
 912                 global $wgOut;
 913                 $sep = " |\n";
 914
 915                 $s = $this->mainPageLink() . $sep
 916                   . $this->specialLink( 'recentchanges' );
 917
 918                 if ( $wgOut->isArticleRelated() ) {
 919                         $s .=  $sep . $this->editThisPage()
 920                           . $sep . $this->historyLink();
 921                 }
 922                 # Many people don't like this dropdown box
 923                 #$s .= $sep . $this->specialPagesList();
 924
 925                 $s .= $this->variantLinks();
 926
 927                 $s .= $this->extensionTabLinks();
 928
 929                 return $s;
 930         }
 931
 932         /**
 933          * Compatibility for extensions adding functionality through tabs.
 934          * Eventually these old skins should be replaced with SkinTemplate-based
 935          * versions, sigh...
 936          * @return string
 937          */
 938         function extensionTabLinks() {
 939                 $tabs = array();
 940                 $s = '';
 941                 wfRunHooks( 'SkinTemplateTabs', array( $this, &$tabs ) );
 942                 foreach( $tabs as $tab ) {
 943                         $s .= ' | ' . Xml::element( 'a',
 944                                 array( 'href' => $tab['href'] ),
 945                                 $tab['text'] );
 946                 }
 947                 return $s;
 948         }
 949
 950         /**
 951          * Language/charset variant links for classic-style skins
 952          * @return string
 953          */
 954         function variantLinks() {
 955                 $s = '';
 956                 /* show links to different language variants */
 957                 global $wgDisableLangConversion, $wgContLang, $wgTitle;
 958                 $variants = $wgContLang->getVariants();
 959                 if( !$wgDisableLangConversion && sizeof( $variants ) > 1 ) {
 960                         foreach( $variants as $code ) {
 961                                 $varname = $wgContLang->getVariantname( $code );
 962                                 if( $varname == 'disable' )
 963                                         continue;
 964                                 $s .= ' | <a href="' . $wgTitle->escapeLocalUrl( 'variant=' . $code ) . '">' . htmlspecialchars( $varname ) . '</a>';
 965                         }
 966                 }
 967                 return $s;
 968         }
 969
 970         function bottomLinks() {
 971                 global $wgOut, $wgUser, $wgTitle, $wgUseTrackbacks;
 972                 $sep = " |\n";
 973
 974                 $s = '';
 975                 if ( $wgOut->isArticleRelated() ) {
 976                         $s .= '<strong>' . $this->editThisPage() . '</strong>';
 977                         if ( $wgUser->isLoggedIn() ) {
 978                                 $s .= $sep . $this->watchThisPage();
 979                         }
 980                         $s .= $sep . $this->talkLink()
 981                           . $sep . $this->historyLink()
 982                           . $sep . $this->whatLinksHere()
 983                           . $sep . $this->watchPageLinksLink();
 984
 985                         if ($wgUseTrackbacks)
 986                                 $s .= $sep . $this->trackbackLink();
 987
 988                         if ( $wgTitle->getNamespace() == NS_USER
 989                             || $wgTitle->getNamespace() == NS_USER_TALK )
 990
 991                         {
 992                                 $id=User::idFromName($wgTitle->getText());
 993                                 $ip=User::isIP($wgTitle->getText());
 994
 995                                 if($id || $ip) { # both anons and non-anons have contri list
 996                                         $s .= $sep . $this->userContribsLink();
 997                                 }
 998                                 if( $this->showEmailUser( $id ) ) {
 999                                         $s .= $sep . $this->emailUserLink();
1000                                 }
1001                         }
1002                         if ( $wgTitle->getArticleId() ) {
1003                                 $s .= "\n<br />";
1004                                 if($wgUser->isAllowed('delete')) { $s .= $this->deleteThisPage(); }
1005                                 if($wgUser->isAllowed('protect')) { $s .= $sep . $this->protectThisPage(); }
1006                                 if($wgUser->isAllowed('move')) { $s .= $sep . $this->moveThisPage(); }
1007                         }
1008                         $s .= "<br />\n" . $this->otherLanguages();
1009                 }
1010                 return $s;
1011         }
1012
1013         function pageStats() {
1014                 global $wgOut, $wgLang, $wgArticle, $wgRequest, $wgUser;
1015                 global $wgDisableCounters, $wgMaxCredits, $wgShowCreditsIfMax, $wgTitle, $wgPageShowWatchingUsers;
1016
1017                 $oldid = $wgRequest->getVal( 'oldid' );
1018                 $diff = $wgRequest->getVal( 'diff' );
1019                 if ( ! $wgOut->isArticle() ) { return ''; }
1020                 if ( isset( $oldid ) || isset( $diff ) ) { return ''; }
1021                 if ( 0 == $wgArticle->getID() ) { return ''; }
1022
1023                 $s = '';
1024                 if ( !$wgDisableCounters ) {
1025                         $count = $wgLang->formatNum( $wgArticle->getCount() );
1026                         if ( $count ) {
1027                                 $s = wfMsgExt( 'viewcount', array( 'parseinline' ), $count );
1028                         }
1029                 }
1030
1031                 if (isset($wgMaxCredits) && $wgMaxCredits != 0) {
1032                     require_once('Credits.php');
1033                     $s .= ' ' . getCredits($wgArticle, $wgMaxCredits, $wgShowCreditsIfMax);
1034                 } else {
1035                     $s .= $this->lastModified();
1036                 }
1037
1038                 if ($wgPageShowWatchingUsers && $wgUser->getOption( 'shownumberswatching' )) {
1039                         $dbr =& wfGetDB( DB_SLAVE );
1040                         $watchlist = $dbr->tableName( 'watchlist' );
1041                         $sql = "SELECT COUNT(*) AS n FROM $watchlist
1042                                 WHERE wl_title='" . $dbr->strencode($wgTitle->getDBKey()) .
1043                                 "' AND  wl_namespace=" . $wgTitle->getNamespace() ;
1044                         $res = $dbr->query( $sql, 'Skin::pageStats');
1045                         $x = $dbr->fetchObject( $res );
1046                         $s .= ' ' . wfMsg('number_of_watching_users_pageview', $x->n );
1047                 }
1048
1049                 return $s . ' ' .  $this->getCopyright();
1050         }
1051
1052         function getCopyright( $type = 'detect' ) {
1053                 global $wgRightsPage, $wgRightsUrl, $wgRightsText, $wgRequest;
1054
1055                 if ( $type == 'detect' ) {
1056                         $oldid = $wgRequest->getVal( 'oldid' );
1057                         $diff = $wgRequest->getVal( 'diff' );
1058
1059                         if ( !is_null( $oldid ) && is_null( $diff ) && wfMsgForContent( 'history_copyright' ) !== '-' ) {
1060                                 $type = 'history';
1061                         } else {
1062                                 $type = 'normal';
1063                         }
1064                 }
1065
1066                 if ( $type == 'history' ) {
1067                         $msg = 'history_copyright';
1068                 } else {
1069                         $msg = 'copyright';
1070                 }
1071
1072                 $out = '';
1073                 if( $wgRightsPage ) {
1074                         $link = $this->makeKnownLink( $wgRightsPage, $wgRightsText );
1075                 } elseif( $wgRightsUrl ) {
1076                         $link = $this->makeExternalLink( $wgRightsUrl, $wgRightsText );
1077                 } else {
1078                         # Give up now
1079                         return $out;
1080                 }
1081                 $out .= wfMsgForContent( $msg, $link );
1082                 return $out;
1083         }
1084
1085         function getCopyrightIcon() {
1086                 global $wgRightsUrl, $wgRightsText, $wgRightsIcon, $wgCopyrightIcon;
1087                 $out = '';
1088                 if ( isset( $wgCopyrightIcon ) && $wgCopyrightIcon ) {
1089                         $out = $wgCopyrightIcon;
1090                 } else if ( $wgRightsIcon ) {
1091                         $icon = htmlspecialchars( $wgRightsIcon );
1092                         if ( $wgRightsUrl ) {
1093                                 $url = htmlspecialchars( $wgRightsUrl );
1094                                 $out .= '<a href="'.$url.'">';
1095                         }
1096                         $text = htmlspecialchars( $wgRightsText );
1097                         $out .= "<img src=\"$icon\" alt='$text' />";
1098                         if ( $wgRightsUrl ) {
1099                                 $out .= '</a>';
1100                         }
1101                 }
1102                 return $out;
1103         }
1104
1105         function getPoweredBy() {
1106                 global $wgStylePath;
1107                 $url = htmlspecialchars( "$wgStylePath/common/images/poweredby_mediawiki_88x31.png" );
1108                 $img = '<a href="http://www.mediawiki.org/"><img src="'.$url.'" alt="MediaWiki" /></a>';
1109                 return $img;
1110         }
1111
1112         function lastModified() {
1113                 global $wgLang, $wgArticle, $wgLoadBalancer;
1114
1115                 $timestamp = $wgArticle->getTimestamp();
1116                 if ( $timestamp ) {
1117                         $d = $wgLang->date( $timestamp, true );
1118                         $t = $wgLang->time( $timestamp, true );
1119                         $s = ' ' . wfMsg( 'lastmodifiedat', $d, $t );
1120                 } else {
1121                         $s = '';
1122                 }
1123                 if ( $wgLoadBalancer->getLaggedSlaveMode() ) {
1124                         $s .= ' <strong>' . wfMsg( 'laggedslavemode' ) . '</strong>';
1125                 }
1126                 return $s;
1127         }
1128
1129         function logoText( $align = '' ) {
1130                 if ( '' != $align ) { $a = " align='{$align}'"; }
1131                 else { $a = ''; }
1132
1133                 $mp = wfMsg( 'mainpage' );
1134                 $mptitle = Title::newMainPage();
1135                 $url = ( is_object($mptitle) ? $mptitle->escapeLocalURL() : '' );
1136
1137                 $logourl = $this->getLogo();
1138                 $s = "<a href='{$url}'><img{$a} src='{$logourl}' alt='[{$mp}]' /></a>";
1139                 return $s;
1140         }
1141
1142         /**
1143          * show a drop-down box of special pages
1144          */
1145         function specialPagesList() {
1146                 global $wgUser, $wgContLang, $wgServer, $wgRedirectScript;
1147                 $pages = array_merge( SpecialPage::getRegularPages(), SpecialPage::getRestrictedPages() );
1148                 foreach ( $pages as $name => $page ) {
1149                         $pages[$name] = $page->getDescription();
1150                 }
1151
1152                 $go = wfMsg( 'go' );
1153                 $sp = wfMsg( 'specialpages' );
1154                 $spp = $wgContLang->specialPage( 'Specialpages' );
1155
1156                 $s = '<form id="specialpages" method="get" class="inline" ' .
1157                   'action="' . htmlspecialchars( "{$wgServer}{$wgRedirectScript}" ) . "\">\n";
1158                 $s .= "<select name=\"wpDropdown\">\n";
1159                 $s .= "<option value=\"{$spp}\">{$sp}</option>\n";
1160
1161
1162                 foreach ( $pages as $name => $desc ) {
1163                         $p = $wgContLang->specialPage( $name );
1164                         $s .= "<option value=\"{$p}\">{$desc}</option>\n";
1165                 }
1166                 $s .= "</select>\n";
1167                 $s .= "<input type='submit' value=\"{$go}\" name='redirect' />\n";
1168                 $s .= "</form>\n";
1169                 return $s;
1170         }
1171
1172         function mainPageLink() {
1173                 $s = $this->makeKnownLinkObj( Title::newMainPage(), wfMsg( 'mainpage' ) );
1174                 return $s;
1175         }
1176
1177         function copyrightLink() {
1178                 $s = $this->makeKnownLink( wfMsgForContent( 'copyrightpage' ),
1179                   wfMsg( 'copyrightpagename' ) );
1180                 return $s;
1181         }
1182
1183         function privacyLink() {
1184                 $privacy = wfMsg( 'privacy' );
1185                 if ($privacy == '-') {
1186                         return '';
1187                 } else {
1188                         return $this->makeKnownLink( wfMsgForContent( 'privacypage' ), $privacy);
1189                 }
1190         }
1191
1192         function aboutLink() {
1193                 $s = $this->makeKnownLink( wfMsgForContent( 'aboutpage' ),
1194                   wfMsg( 'aboutsite' ) );
1195                 return $s;
1196         }
1197
1198         function disclaimerLink() {
1199                 $disclaimers = wfMsg( 'disclaimers' );
1200                 if ($disclaimers == '-') {
1201                         return '';
1202                 } else {
1203                         return $this->makeKnownLink( wfMsgForContent( 'disclaimerpage' ),
1204                                                      $disclaimers );
1205                 }
1206         }
1207
1208         function editThisPage() {
1209                 global $wgOut, $wgTitle;
1210
1211                 if ( ! $wgOut->isArticleRelated() ) {
1212                         $s = wfMsg( 'protectedpage' );
1213                 } else {
1214                         if ( $wgTitle->userCanEdit() ) {
1215                                 $t = wfMsg( 'editthispage' );
1216                         } else {
1217                                 $t = wfMsg( 'viewsource' );
1218                         }
1219
1220                         $s = $this->makeKnownLinkObj( $wgTitle, $t, $this->editUrlOptions() );
1221                 }
1222                 return $s;
1223         }
1224
1225         /**
1226          * Return URL options for the 'edit page' link.
1227          * This may include an 'oldid' specifier, if the current page view is such.
1228          *
1229          * @return string
1230          * @private
1231          */
1232         function editUrlOptions() {
1233                 global $wgArticle;
1234
1235                 if( $this->mRevisionId && ! $wgArticle->isCurrent() ) {
1236                         return "action=edit&oldid=" . intval( $this->mRevisionId );
1237                 } else {
1238                         return "action=edit";
1239                 }
1240         }
1241
1242         function deleteThisPage() {
1243                 global $wgUser, $wgTitle, $wgRequest;
1244
1245                 $diff = $wgRequest->getVal( 'diff' );
1246                 if ( $wgTitle->getArticleId() && ( ! $diff ) && $wgUser->isAllowed('delete') ) {
1247                         $t = wfMsg( 'deletethispage' );
1248
1249                         $s = $this->makeKnownLinkObj( $wgTitle, $t, 'action=delete' );
1250                 } else {
1251                         $s = '';
1252                 }
1253                 return $s;
1254         }
1255
1256         function protectThisPage() {
1257                 global $wgUser, $wgTitle, $wgRequest;
1258
1259                 $diff = $wgRequest->getVal( 'diff' );
1260                 if ( $wgTitle->getArticleId() && ( ! $diff ) && $wgUser->isAllowed('protect') ) {
1261                         if ( $wgTitle->isProtected() ) {
1262                                 $t = wfMsg( 'unprotectthispage' );
1263                                 $q = 'action=unprotect';
1264                         } else {
1265                                 $t = wfMsg( 'protectthispage' );
1266                                 $q = 'action=protect';
1267                         }
1268                         $s = $this->makeKnownLinkObj( $wgTitle, $t, $q );
1269                 } else {
1270                         $s = '';
1271                 }
1272                 return $s;
1273         }
1274
1275         function watchThisPage() {
1276                 global $wgOut, $wgTitle;
1277
1278                 if ( $wgOut->isArticleRelated() ) {
1279                         if ( $wgTitle->userIsWatching() ) {
1280                                 $t = wfMsg( 'unwatchthispage' );
1281                                 $q = 'action=unwatch';
1282                         } else {
1283                                 $t = wfMsg( 'watchthispage' );
1284                                 $q = 'action=watch';
1285                         }
1286                         $s = $this->makeKnownLinkObj( $wgTitle, $t, $q );
1287                 } else {
1288                         $s = wfMsg( 'notanarticle' );
1289                 }
1290                 return $s;
1291         }
1292
1293         function moveThisPage() {
1294                 global $wgTitle;
1295
1296                 if ( $wgTitle->userCanMove() ) {
1297                         return $this->makeKnownLinkObj( SpecialPage::getTitleFor( 'Movepage' ),
1298                           wfMsg( 'movethispage' ), 'target=' . $wgTitle->getPrefixedURL() );
1299                 } else {
1300                         // no message if page is protected - would be redundant
1301                         return '';
1302                 }
1303         }
1304
1305         function historyLink() {
1306                 global $wgTitle;
1307
1308                 return $this->makeKnownLinkObj( $wgTitle,
1309                   wfMsg( 'history' ), 'action=history' );
1310         }
1311
1312         function whatLinksHere() {
1313                 global $wgTitle;
1314
1315                 return $this->makeKnownLinkObj(
1316                         SpecialPage::getTitleFor( 'Whatlinkshere', $wgTitle->getPrefixedDBkey() ),
1317                         wfMsg( 'whatlinkshere' ) );
1318         }
1319
1320         function userContribsLink() {
1321                 global $wgTitle;
1322
1323                 return $this->makeKnownLinkObj(
1324                         SpecialPage::getTitleFor( 'Contributions', $wgTitle->getDBkey() ),
1325                         wfMsg( 'contributions' ) );
1326         }
1327
1328         function showEmailUser( $id ) {
1329                 global $wgEnableEmail, $wgEnableUserEmail, $wgUser;
1330                 return $wgEnableEmail &&
1331                        $wgEnableUserEmail &&
1332                        $wgUser->isLoggedIn() && # show only to signed in users
1333                        0 != $id; # we can only email to non-anons ..
1334 #                      '' != $id->getEmail() && # who must have an email address stored ..
1335 #                      0 != $id->getEmailauthenticationtimestamp() && # .. which is authenticated
1336 #                      1 != $wgUser->getOption('disablemail'); # and not disabled
1337         }
1338
1339         function emailUserLink() {
1340                 global $wgTitle;
1341
1342                 return $this->makeKnownLinkObj(
1343                         SpecialPage::getTitleFor( 'Emailuser', $wgTitle->getDBkey() ),
1344                         wfMsg( 'emailuser' ) );
1345         }
1346
1347         function watchPageLinksLink() {
1348                 global $wgOut, $wgTitle;
1349
1350                 if ( ! $wgOut->isArticleRelated() ) {
1351                         return '(' . wfMsg( 'notanarticle' ) . ')';
1352                 } else {
1353                         return $this->makeKnownLinkObj(
1354                                 SpecialPage::getTitleFor( 'Recentchangeslinked', $wgTitle->getPrefixedDBkey() ),
1355                                 wfMsg( 'recentchangeslinked' ) );
1356                 }
1357         }
1358
1359         function trackbackLink() {
1360                 global $wgTitle;
1361
1362                 return "<a href=\"" . $wgTitle->trackbackURL() . "\">"
1363                         . wfMsg('trackbacklink') . "</a>";
1364         }
1365
1366         function otherLanguages() {
1367                 global $wgOut, $wgContLang, $wgHideInterlanguageLinks;
1368
1369                 if ( $wgHideInterlanguageLinks ) {
1370                         return '';
1371                 }
1372
1373                 $a = $wgOut->getLanguageLinks();
1374                 if ( 0 == count( $a ) ) {
1375                         return '';
1376                 }
1377
1378                 $s = wfMsg( 'otherlanguages' ) . ': ';
1379                 $first = true;
1380                 if($wgContLang->isRTL()) $s .= '<span dir="LTR">';
1381                 foreach( $a as $l ) {
1382                         if ( ! $first ) { $s .= ' | '; }
1383                         $first = false;
1384
1385                         $nt = Title::newFromText( $l );
1386                         $url = $nt->escapeFullURL();
1387                         $text = $wgContLang->getLanguageName( $nt->getInterwiki() );
1388
1389                         if ( '' == $text ) { $text = $l; }
1390                         $style = $this->getExternalLinkAttributes( $l, $text );
1391                         $s .= "<a href=\"{$url}\"{$style}>{$text}</a>";
1392                 }
1393                 if($wgContLang->isRTL()) $s .= '</span>';
1394                 return $s;
1395         }
1396
1397         function bugReportsLink() {
1398                 $s = $this->makeKnownLink( wfMsgForContent( 'bugreportspage' ),
1399                   wfMsg( 'bugreports' ) );
1400                 return $s;
1401         }
1402
1403         function dateLink() {
1404                 $t1 = Title::newFromText( gmdate( 'F j' ) );
1405                 $t2 = Title::newFromText( gmdate( 'Y' ) );
1406
1407                 $id = $t1->getArticleID();
1408
1409                 if ( 0 == $id ) {
1410                         $s = $this->makeBrokenLink( $t1->getText() );
1411                 } else {
1412                         $s = $this->makeKnownLink( $t1->getText() );
1413                 }
1414                 $s .= ', ';
1415
1416                 $id = $t2->getArticleID();
1417
1418                 if ( 0 == $id ) {
1419                         $s .= $this->makeBrokenLink( $t2->getText() );
1420                 } else {
1421                         $s .= $this->makeKnownLink( $t2->getText() );
1422                 }
1423                 return $s;
1424         }
1425
1426         function talkLink() {
1427                 global $wgTitle;
1428
1429                 if ( NS_SPECIAL == $wgTitle->getNamespace() ) {
1430                         # No discussion links for special pages
1431                         return '';
1432                 }
1433
1434                 if( $wgTitle->isTalkPage() ) {
1435                         $link = $wgTitle->getSubjectPage();
1436                         switch( $link->getNamespace() ) {
1437                                 case NS_MAIN:
1438                                         $text = wfMsg( 'articlepage' );
1439                                         break;
1440                                 case NS_USER:
1441                                         $text = wfMsg( 'userpage' );
1442                                         break;
1443                                 case NS_PROJECT:
1444                                         $text = wfMsg( 'projectpage' );
1445                                         break;
1446                                 case NS_IMAGE:
1447                                         $text = wfMsg( 'imagepage' );
1448                                         break;
1449                                 case NS_MEDIAWIKI:
1450                                         $text = wfMsg( 'mediawikipage' );
1451                                         break;
1452                                 case NS_TEMPLATE:
1453                                         $text = wfMsg( 'templatepage' );
1454                                         break;
1455                                 case NS_HELP:
1456                                         $text = wfMsg( 'viewhelppage' );
1457                                         break;
1458                                 case NS_CATEGORY:
1459                                         $text = wfMsg( 'categorypage' );
1460                                         break;
1461                                 default:
1462                                         $text = wfMsg( 'articlepage' );
1463                         }
1464                 } else {
1465                         $link = $wgTitle->getTalkPage();
1466                         $text = wfMsg( 'talkpage' );
1467                 }
1468
1469                 $s = $this->makeLinkObj( $link, $text );
1470
1471                 return $s;
1472         }
1473
1474         function commentLink() {
1475                 global $wgTitle, $wgOut;
1476
1477                 if ( $wgTitle->getNamespace() == NS_SPECIAL ) {
1478                         return '';
1479                 }
1480
1481                 # __NEWSECTIONLINK___ changes behaviour here
1482                 # If it's present, the link points to this page, otherwise
1483                 # it points to the talk page
1484                 if( $wgTitle->isTalkPage() ) {
1485                         $title =& $wgTitle;
1486                 } elseif( $wgOut->showNewSectionLink() ) {
1487                         $title =& $wgTitle;
1488                 } else {
1489                         $title =& $wgTitle->getTalkPage();
1490                 }
1491
1492                 return $this->makeKnownLinkObj( $title, wfMsg( 'postcomment' ), 'action=edit&section=new' );
1493         }
1494
1495         /* these are used extensively in SkinTemplate, but also some other places */
1496         static function makeMainPageUrl( $urlaction = '' ) {
1497                 $title = Title::newMainPage();
1498                 self::checkTitle( $title, $name );
1499                 return $title->getLocalURL( $urlaction );
1500         }
1501
1502         static function makeSpecialUrl( $name, $urlaction = '' ) {
1503                 $title = SpecialPage::getTitleFor( $name );
1504                 return $title->getLocalURL( $urlaction );
1505         }
1506
1507         static function makeI18nUrl( $name, $urlaction = '' ) {
1508                 $title = Title::newFromText( wfMsgForContent( $name ) );
1509                 self::checkTitle( $title, $name );
1510                 return $title->getLocalURL( $urlaction );
1511         }
1512
1513         static function makeUrl( $name, $urlaction = '' ) {
1514                 $title = Title::newFromText( $name );
1515                 self::checkTitle( $title, $name );
1516                 return $title->getLocalURL( $urlaction );
1517         }
1518
1519         # If url string starts with http, consider as external URL, else
1520         # internal
1521         static function makeInternalOrExternalUrl( $name ) {
1522                 if ( preg_match( '/^(?:' . wfUrlProtocols() . ')/', $name ) ) {
1523                         return $name;
1524                 } else {
1525                         return self::makeUrl( $name );
1526                 }
1527         }
1528
1529         # this can be passed the NS number as defined in Language.php
1530         static function makeNSUrl( $name, $urlaction = '', $namespace = NS_MAIN ) {
1531                 $title = Title::makeTitleSafe( $namespace, $name );
1532                 self::checkTitle( $title, $name );
1533                 return $title->getLocalURL( $urlaction );
1534         }
1535
1536         /* these return an array with the 'href' and boolean 'exists' */
1537         static function makeUrlDetails( $name, $urlaction = '' ) {
1538                 $title = Title::newFromText( $name );
1539                 self::checkTitle( $title, $name );
1540                 return array(
1541                         'href' => $title->getLocalURL( $urlaction ),
1542                         'exists' => $title->getArticleID() != 0 ? true : false
1543                 );
1544         }
1545
1546         /**
1547          * Make URL details where the article exists (or at least it's convenient to think so)
1548          */
1549         static function makeKnownUrlDetails( $name, $urlaction = '' ) {
1550                 $title = Title::newFromText( $name );
1551                 self::checkTitle( $title, $name );
1552                 return array(
1553                         'href' => $title->getLocalURL( $urlaction ),
1554                         'exists' => true
1555                 );
1556         }
1557
1558         # make sure we have some title to operate on
1559         static function checkTitle( &$title, &$name ) {
1560                 if( !is_object( $title ) ) {
1561                         $title = Title::newFromText( $name );
1562                         if( !is_object( $title ) ) {
1563                                 $title = Title::newFromText( '--error: link target missing--' );
1564                         }
1565                 }
1566         }
1567
1568         /**
1569          * Build an array that represents the sidebar(s), the navigation bar among them
1570          *
1571          * @return array
1572          * @private
1573          */
1574         function buildSidebar() {
1575                 global $parserMemc, $wgEnableSidebarCache;
1576                 global $wgLang, $wgContLang;
1577
1578                 $fname = 'SkinTemplate::buildSidebar';
1579
1580                 wfProfileIn( $fname );
1581
1582                 $key = wfMemcKey( 'sidebar' );
1583                 $cacheSidebar = $wgEnableSidebarCache &&
1584                         ($wgLang->getCode() == $wgContLang->getCode());
1585
1586                 if ($cacheSidebar) {
1587                         $cachedsidebar = $parserMemc->get( $key );
1588                         if ($cachedsidebar!="") {
1589                                 wfProfileOut($fname);
1590                                 return $cachedsidebar;
1591                         }
1592                 }
1593
1594                 $bar = array();
1595                 $lines = explode( "\n", wfMsgForContent( 'sidebar' ) );
1596                 foreach ($lines as $line) {
1597                         if (strpos($line, '*') !== 0)
1598                                 continue;
1599                         if (strpos($line, '**') !== 0) {
1600                                 $line = trim($line, '* ');
1601                                 $heading = $line;
1602                         } else {
1603                                 if (strpos($line, '|') !== false) { // sanity check
1604                                         $line = explode( '|' , trim($line, '* '), 2 );
1605                                         $link = wfMsgForContent( $line[0] );
1606                                         if ($link == '-')
1607                                                 continue;
1608                                         if (wfEmptyMsg($line[1], $text = wfMsg($line[1])))
1609                                                 $text = $line[1];
1610                                         if (wfEmptyMsg($line[0], $link))
1611                                                 $link = $line[0];
1612
1613                                         if ( preg_match( '/^(?:' . wfUrlProtocols() . ')/', $link ) ) {
1614                                                 $href = $link;
1615                                         } else {
1616                                                 $title = Title::newFromText( $link );
1617                                                 if ( $title ) {
1618                                                         $title = $title->fixSpecialName();
1619                                                         $href = $title->getLocalURL();
1620                                                 } else {
1621                                                         $href = 'INVALID-TITLE';
1622                                                 }
1623                                         }
1624
1625                                         $bar[$heading][] = array(
1626                                                 'text' => $text,
1627                                                 'href' => $href,
1628                                                 'id' => 'n-' . strtr($line[1], ' ', '-'),
1629                                                 'active' => false
1630                                         );
1631                                 } else { continue; }
1632                         }
1633                 }
1634                 if ($cacheSidebar)
1635                         $parserMemc->set( $key, $bar, 86400 );
1636                 wfProfileOut( $fname );
1637                 return $bar;
1638         }
1639 }
1640 ?>