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 = $skinDir->read())) {
  50                                 // Skip non-PHP files, hidden files, and '.dep' includes
  51                                 if(preg_match('/^([^.]*)\.php$/',$file, $matches)) {
  52                                         $aSkin = $matches[1];
  53                                         $wgValidSkinNames[strtolower($aSkin)] = $aSkin;
  54                                 }
  55                         }
  56                         $skinDir->close();
  57                         $skinsInitialised = true;
  58                         wfProfileOut( __METHOD__ . '-init' );
  59                 }
  60                 return $wgValidSkinNames;
  61         }
  62
  63         /**
  64          * Normalize a skin preference value to a form that can be loaded.
  65          * If a skin can't be found, it will fall back to the configured
  66          * default (or the old 'Classic' skin if that's broken).
  67          * @param string $key
  68          * @return string
  69          * @static
  70          */
  71         static function normalizeKey( $key ) {
  72                 global $wgDefaultSkin;
  73                 $skinNames = Skin::getSkinNames();
  74
  75                 if( $key == '' ) {
  76                         // Don't return the default immediately;
  77                         // in a misconfiguration we need to fall back.
  78                         $key = $wgDefaultSkin;
  79                 }
  80
  81                 if( isset( $skinNames[$key] ) ) {
  82                         return $key;
  83                 }
  84
  85                 // Older versions of the software used a numeric setting
  86                 // in the user preferences.
  87                 $fallback = array(
  88                         0 => $wgDefaultSkin,
  89                         1 => 'nostalgia',
  90                         2 => 'cologneblue' );
  91
  92                 if( isset( $fallback[$key] ) ){
  93                         $key = $fallback[$key];
  94                 }
  95
  96                 if( isset( $skinNames[$key] ) ) {
  97                         return $key;
  98                 } else {
  99                         // The old built-in skin
 100                         return 'standard';
 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
 118                 # Grab the skin class and initialise it.
 119                 wfSuppressWarnings();
 120                 // Preload base classes to work around APC/PHP5 bug
 121                 include_once( "{$wgStyleDirectory}/{$skinName}.deps.php" );
 122                 wfRestoreWarnings();
 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?1';
 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;
 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                 $this->addMetadataLinks($out);
 170
 171                 $this->mRevisionId = $out->mRevisionId;
 172
 173                 $this->preloadExistence();
 174
 175                 wfProfileOut( $fname );
 176         }
 177
 178         /**
 179          * Preload the existence of three commonly-requested pages in a single query
 180          */
 181         function preloadExistence() {
 182                 global $wgUser, $wgTitle;
 183
 184                 if ( $wgTitle->isTalkPage() ) {
 185                         $otherTab = $wgTitle->getSubjectPage();
 186                 } else {
 187                         $otherTab = $wgTitle->getTalkPage();
 188                 }
 189                 $lb = new LinkBatch( array(
 190                         $wgUser->getUserPage(),
 191                         $wgUser->getTalkPage(),
 192                         $otherTab
 193                 ));
 194                 $lb->execute();
 195         }
 196
 197         function addMetadataLinks( &$out ) {
 198                 global $wgTitle, $wgEnableDublinCoreRdf, $wgEnableCreativeCommonsRdf;
 199                 global $wgRightsPage, $wgRightsUrl;
 200
 201                 if( $out->isArticleRelated() ) {
 202                         # note: buggy CC software only reads first "meta" link
 203                         if( $wgEnableCreativeCommonsRdf ) {
 204                                 $out->addMetadataLink( array(
 205                                         'title' => 'Creative Commons',
 206                                         'type' => 'application/rdf+xml',
 207                                         'href' => $wgTitle->getLocalURL( 'action=creativecommons') ) );
 208                         }
 209                         if( $wgEnableDublinCoreRdf ) {
 210                                 $out->addMetadataLink( array(
 211                                         'title' => 'Dublin Core',
 212                                         'type' => 'application/rdf+xml',
 213                                         'href' => $wgTitle->getLocalURL( 'action=dublincore' ) ) );
 214                         }
 215                 }
 216                 $copyright = '';
 217                 if( $wgRightsPage ) {
 218                         $copy = Title::newFromText( $wgRightsPage );
 219                         if( $copy ) {
 220                                 $copyright = $copy->getLocalURL();
 221                         }
 222                 }
 223                 if( !$copyright && $wgRightsUrl ) {
 224                         $copyright = $wgRightsUrl;
 225                 }
 226                 if( $copyright ) {
 227                         $out->addLink( array(
 228                                 'rel' => 'copyright',
 229                                 'href' => $copyright ) );
 230                 }
 231         }
 232
 233         function outputPage( &$out ) {
 234                 global $wgDebugComments;
 235
 236                 wfProfileIn( 'Skin::outputPage' );
 237                 $this->initPage( $out );
 238
 239                 $out->out( $out->headElement() );
 240
 241                 $out->out( "\n<body" );
 242                 $ops = $this->getBodyOptions();
 243                 foreach ( $ops as $name => $val ) {
 244                         $out->out( " $name='$val'" );
 245                 }
 246                 $out->out( ">\n" );
 247                 if ( $wgDebugComments ) {
 248                         $out->out( "<!-- Wiki debugging output:\n" .
 249                           $out->mDebugtext . "-->\n" );
 250                 }
 251
 252                 $out->out( $this->beforeContent() );
 253
 254                 $out->out( $out->mBodytext . "\n" );
 255
 256                 $out->out( $this->afterContent() );
 257
 258                 $out->out( $out->reportTime() );
 259
 260                 $out->out( "\n</body></html>" );
 261         }
 262
 263         /*static*/ function makeGlobalVariablesScript( $data ) {
 264                 $r = '<script type= "' . $data['jsmimetype'] . '">
 265                         var skin = "' . Xml::escapeJsString( $data['skinname'] ) . '";
 266                         var stylepath = "' . Xml::escapeJsString( $data['stylepath'] ) . '";
 267
 268                         var wgArticlePath = "' . Xml::escapeJsString( $data['articlepath'] ) . '";
 269                         var wgScriptPath = "' . Xml::escapeJsString( $data['scriptpath'] ) . '";
 270                         var wgServer = "' . Xml::escapeJsString( $data['serverurl'] ) . '";
 271
 272                         var wgCanonicalNamespace = "' . Xml::escapeJsString( $data['nscanonical'] ) . '";
 273                         var wgPageName = "' . Xml::escapeJsString( $data['titleprefixeddbkey'] ) . '";
 274                         var wgTitle = "' . Xml::escapeJsString( $data['titletext'] ) . '";
 275                         var wgArticleId = ' . (int)$data['articleid'] . ';
 276
 277                         var wgUserName = ' . ( $data['username'] == NULL ? 'null' : ( '"' . Xml::escapeJsString( $data['username'] ) . '"' ) ) . ';
 278                         var wgUserLanguage = "' . Xml::escapeJsString( $data['userlang'] ) . '";
 279                         var wgContentLanguage = "' . Xml::escapeJsString( $data['lang'] ) . '";
 280                 </script>
 281                 ';
 282
 283                 return $r;
 284         }
 285
 286         function getHeadScripts() {
 287                 global $wgStylePath, $wgUser, $wgAllowUserJs, $wgJsMimeType;
 288                 global $wgArticlePath, $wgScriptPath, $wgServer, $wgContLang, $wgLang;
 289                 global $wgTitle, $wgCanonicalNamespaceNames;
 290
 291                 $nsname = @$wgCanonicalNamespaceNames[ $wgTitle->getNamespace() ];
 292                 if ( $nsname === NULL ) $nsname = $wgTitle->getNsText();
 293
 294                 $vars = array(
 295                         'jsmimetype' => $wgJsMimeType,
 296                         'skinname' => $this->getSkinName(),
 297                         'stylepath' => $wgStylePath,
 298                         'articlepath' => $wgArticlePath,
 299                         'scriptpath' => $wgScriptPath,
 300                         'serverurl' => $wgServer,
 301                         'nscanonical' => $nsname,
 302                         'titleprefixeddbkey' => $wgTitle->getPrefixedDBKey(),
 303                         'titletext' => $wgTitle->getText(),
 304                         'articleid' => $wgTitle->getArticleId(),
 305                         'username' => $wgUser->isAnon() ? NULL : $wgUser->getName(),
 306                         'userlang' => $wgLang->getCode(),
 307                         'lang' => $wgContLang->getCode(),
 308                 );
 309
 310                 $r = Skin::makeGlobalVariablesScript( $vars );
 311
 312                 $r .= "<script type=\"{$wgJsMimeType}\" src=\"{$wgStylePath}/common/wikibits.js\"></script>\n";
 313                 if( $wgAllowUserJs && $wgUser->isLoggedIn() ) {
 314                         $userpage = $wgUser->getUserPage();
 315                         $userjs = htmlspecialchars( $this->makeUrl(
 316                                 $userpage->getPrefixedText().'/'.$this->getSkinName().'.js',
 317                                 'action=raw&ctype='.$wgJsMimeType));
 318                         $r .= '<script type="'.$wgJsMimeType.'" src="'.$userjs."\"></script>\n";
 319                 }
 320                 return $r;
 321         }
 322
 323         /**
 324          * To make it harder for someone to slip a user a fake
 325          * user-JavaScript or user-CSS preview, a random token
 326          * is associated with the login session. If it's not
 327          * passed back with the preview request, we won't render
 328          * the code.
 329          *
 330          * @param string $action
 331          * @return bool
 332          * @private
 333          */
 334         function userCanPreview( $action ) {
 335                 global $wgTitle, $wgRequest, $wgUser;
 336
 337                 if( $action != 'submit' )
 338                         return false;
 339                 if( !$wgRequest->wasPosted() )
 340                         return false;
 341                 if( !$wgTitle->userCanEditCssJsSubpage() )
 342                         return false;
 343                 return $wgUser->matchEditToken(
 344                         $wgRequest->getVal( 'wpEditToken' ) );
 345         }
 346
 347         # get the user/site-specific stylesheet, SkinTemplate loads via RawPage.php (settings are cached that way)
 348         function getUserStylesheet() {
 349                 global $wgStylePath, $wgRequest, $wgContLang, $wgSquidMaxage;
 350                 $sheet = $this->getStylesheet();
 351                 $action = $wgRequest->getText('action');
 352                 $s = "@import \"$wgStylePath/$sheet\";\n";
 353                 if($wgContLang->isRTL()) $s .= "@import \"$wgStylePath/common/common_rtl.css\";\n";
 354
 355                 $query = "action=raw&ctype=text/css&smaxage=$wgSquidMaxage";
 356                 $s .= '@import "' . $this->makeNSUrl( 'Common.css', $query, NS_MEDIAWIKI ) . "\";\n" .
 357                         '@import "'.$this->makeNSUrl( ucfirst( $this->getSkinName() . '.css' ), $query, NS_MEDIAWIKI ) . "\";\n";
 358
 359                 $s .= $this->doGetUserStyles();
 360                 return $s."\n";
 361         }
 362
 363         /**
 364          * placeholder, returns generated js in monobook
 365          */
 366         function getUserJs() { return; }
 367
 368         /**
 369          * Return html code that include User stylesheets
 370          */
 371         function getUserStyles() {
 372                 $s = "<style type='text/css'>\n";
 373                 $s .= "/*/*/ /*<![CDATA[*/\n"; # <-- Hide the styles from Netscape 4 without hiding them from IE/Mac
 374                 $s .= $this->getUserStylesheet();
 375                 $s .= "/*]]>*/ /* */\n";
 376                 $s .= "</style>\n";
 377                 return $s;
 378         }
 379
 380         /**
 381          * Some styles that are set by user through the user settings interface.
 382          */
 383         function doGetUserStyles() {
 384                 global $wgUser, $wgUser, $wgRequest, $wgTitle, $wgAllowUserCss;
 385
 386                 $s = '';
 387
 388                 if( $wgAllowUserCss && $wgUser->isLoggedIn() ) { # logged in
 389                         if($wgTitle->isCssSubpage() && $this->userCanPreview( $wgRequest->getText( 'action' ) ) ) {
 390                                 $s .= $wgRequest->getText('wpTextbox1');
 391                         } else {
 392                                 $userpage = $wgUser->getUserPage();
 393                                 $s.= '@import "'.$this->makeUrl(
 394                                         $userpage->getPrefixedText().'/'.$this->getSkinName().'.css',
 395                                         'action=raw&ctype=text/css').'";'."\n";
 396                         }
 397                 }
 398
 399                 return $s . $this->reallyDoGetUserStyles();
 400         }
 401
 402         function reallyDoGetUserStyles() {
 403                 global $wgUser;
 404                 $s = '';
 405                 if (($undopt = $wgUser->getOption("underline")) != 2) {
 406                         $underline = $undopt ? 'underline' : 'none';
 407                         $s .= "a { text-decoration: $underline; }\n";
 408                 }
 409                 if( $wgUser->getOption( 'highlightbroken' ) ) {
 410                         $s .= "a.new, #quickbar a.new { color: #CC2200; }\n";
 411                 } else {
 412                         $s .= <<<END
 413 a.new, #quickbar a.new,
 414 a.stub, #quickbar a.stub {
 415         color: inherit;
 416         text-decoration: inherit;
 417 }
 418 a.new:after, #quickbar a.new:after {
 419         content: "?";
 420         color: #CC2200;
 421         text-decoration: $underline;
 422 }
 423 a.stub:after, #quickbar a.stub:after {
 424         content: "!";
 425         color: #772233;
 426         text-decoration: $underline;
 427 }
 428 END;
 429                 }
 430                 if( $wgUser->getOption( 'justify' ) ) {
 431                         $s .= "#article, #bodyContent { text-align: justify; }\n";
 432                 }
 433                 if( !$wgUser->getOption( 'showtoc' ) ) {
 434                         $s .= "#toc { display: none; }\n";
 435                 }
 436                 if( !$wgUser->getOption( 'editsection' ) ) {
 437                         $s .= ".editsection { display: none; }\n";
 438                 }
 439                 return $s;
 440         }
 441
 442         function getBodyOptions() {
 443                 global $wgUser, $wgTitle, $wgOut, $wgRequest;
 444
 445                 extract( $wgRequest->getValues( 'oldid', 'redirect', 'diff' ) );
 446
 447                 if ( 0 != $wgTitle->getNamespace() ) {
 448                         $a = array( 'bgcolor' => '#ffffec' );
 449                 }
 450                 else $a = array( 'bgcolor' => '#FFFFFF' );
 451                 if($wgOut->isArticle() && $wgUser->getOption('editondblclick') &&
 452                   $wgTitle->userCanEdit() ) {
 453                         $t = wfMsg( 'editthispage' );
 454                         $s = $wgTitle->getFullURL( $this->editUrlOptions() );
 455                         $s = 'document.location = "' .wfEscapeJSString( $s ) .'";';
 456                         $a += array ('ondblclick' => $s);
 457
 458                 }
 459                 $a['onload'] = $wgOut->getOnloadHandler();
 460                 if( $wgUser->getOption( 'editsectiononrightclick' ) ) {
 461                         if( $a['onload'] != '' ) {
 462                                 $a['onload'] .= ';';
 463                         }
 464                         $a['onload'] .= 'setupRightClickEdit()';
 465                 }
 466                 return $a;
 467         }
 468
 469         /**
 470          * URL to the logo
 471          */
 472         function getLogo() {
 473                 global $wgLogo;
 474                 return $wgLogo;
 475         }
 476
 477         /**
 478          * This will be called immediately after the <body> tag.  Split into
 479          * two functions to make it easier to subclass.
 480          */
 481         function beforeContent() {
 482                 return $this->doBeforeContent();
 483         }
 484
 485         function doBeforeContent() {
 486                 global $wgContLang;
 487                 $fname = 'Skin::doBeforeContent';
 488                 wfProfileIn( $fname );
 489
 490                 $s = '';
 491                 $qb = $this->qbSetting();
 492
 493                 if( $langlinks = $this->otherLanguages() ) {
 494                         $rows = 2;
 495                         $borderhack = '';
 496                 } else {
 497                         $rows = 1;
 498                         $langlinks = false;
 499                         $borderhack = 'class="top"';
 500                 }
 501
 502                 $s .= "\n<div id='content'>\n<div id='topbar'>\n" .
 503                   "<table border='0' cellspacing='0' width='98%'>\n<tr>\n";
 504
 505                 $shove = ($qb != 0);
 506                 $left = ($qb == 1 || $qb == 3);
 507                 if($wgContLang->isRTL()) $left = !$left;
 508
 509                 if ( !$shove ) {
 510                         $s .= "<td class='top' align='left' valign='top' rowspan='{$rows}'>\n" .
 511                           $this->logoText() . '</td>';
 512                 } elseif( $left ) {
 513                         $s .= $this->getQuickbarCompensator( $rows );
 514                 }
 515                 $l = $wgContLang->isRTL() ? 'right' : 'left';
 516                 $s .= "<td {$borderhack} align='$l' valign='top'>\n";
 517
 518                 $s .= $this->topLinks() ;
 519                 $s .= "<p class='subtitle'>" . $this->pageTitleLinks() . "</p>\n";
 520
 521                 $r = $wgContLang->isRTL() ? "left" : "right";
 522                 $s .= "</td>\n<td {$borderhack} valign='top' align='$r' nowrap='nowrap'>";
 523                 $s .= $this->nameAndLogin();
 524                 $s .= "\n<br />" . $this->searchForm() . "</td>";
 525
 526                 if ( $langlinks ) {
 527                         $s .= "</tr>\n<tr>\n<td class='top' colspan=\"2\">$langlinks</td>\n";
 528                 }
 529
 530                 if ( $shove && !$left ) { # Right
 531                         $s .= $this->getQuickbarCompensator( $rows );
 532                 }
 533                 $s .= "</tr>\n</table>\n</div>\n";
 534                 $s .= "\n<div id='article'>\n";
 535
 536                 $notice = wfGetSiteNotice();
 537                 if( $notice ) {
 538                         $s .= "\n<div id='siteNotice'>$notice</div>\n";
 539                 }
 540                 $s .= $this->pageTitle();
 541                 $s .= $this->pageSubtitle() ;
 542                 $s .= $this->getCategories();
 543                 wfProfileOut( $fname );
 544                 return $s;
 545         }
 546
 547
 548         function getCategoryLinks () {
 549                 global $wgOut, $wgTitle, $wgUseCategoryBrowser;
 550                 global $wgContLang;
 551
 552                 if( count( $wgOut->mCategoryLinks ) == 0 ) return '';
 553
 554                 # Separator
 555                 $sep = wfMsgHtml( 'catseparator' );
 556
 557                 // Use Unicode bidi embedding override characters,
 558                 // to make sure links don't smash each other up in ugly ways.
 559                 $dir = $wgContLang->isRTL() ? 'rtl' : 'ltr';
 560                 $embed = "<span dir='$dir'>";
 561                 $pop = '</span>';
 562                 $t = $embed . implode ( "{$pop} {$sep} {$embed}" , $wgOut->mCategoryLinks ) . $pop;
 563
 564                 $msg = wfMsgExt('categories', array('parsemag', 'escape'), count( $wgOut->mCategoryLinks ));
 565                 $s = $this->makeKnownLinkObj( Title::makeTitle( NS_SPECIAL, 'Categories' ),
 566                         $msg, 'article=' . urlencode( $wgTitle->getPrefixedDBkey() ) )
 567                         . ': ' . $t;
 568
 569                 # optional 'dmoz-like' category browser. Will be shown under the list
 570                 # of categories an article belong to
 571                 if($wgUseCategoryBrowser) {
 572                         $s .= '<br /><hr />';
 573
 574                         # get a big array of the parents tree
 575                         $parenttree = $wgTitle->getParentCategoryTree();
 576                         # Skin object passed by reference cause it can not be
 577                         # accessed under the method subfunction drawCategoryBrowser
 578                         $tempout = explode("\n", Skin::drawCategoryBrowser($parenttree, $this) );
 579                         # Clean out bogus first entry and sort them
 580                         unset($tempout[0]);
 581                         asort($tempout);
 582                         # Output one per line
 583                         $s .= implode("<br />\n", $tempout);
 584                 }
 585
 586                 return $s;
 587         }
 588
 589         /** Render the array as a serie of links.
 590          * @param $tree Array: categories tree returned by Title::getParentCategoryTree
 591          * @param &skin Object: skin passed by reference
 592          * @return String separated by &gt;, terminate with "\n"
 593          */
 594         function drawCategoryBrowser($tree, &$skin) {
 595                 $return = '';
 596                 foreach ($tree as $element => $parent) {
 597                         if (empty($parent)) {
 598                                 # element start a new list
 599                                 $return .= "\n";
 600                         } else {
 601                                 # grab the others elements
 602                                 $return .= Skin::drawCategoryBrowser($parent, $skin) . ' &gt; ';
 603                         }
 604                         # add our current element to the list
 605                         $eltitle = Title::NewFromText($element);
 606                         $return .=  $skin->makeLinkObj( $eltitle, $eltitle->getText() ) ;
 607                 }
 608                 return $return;
 609         }
 610
 611         function getCategories() {
 612                 $catlinks=$this->getCategoryLinks();
 613                 if(!empty($catlinks)) {
 614                         return "<p class='catlinks'>{$catlinks}</p>";
 615                 }
 616         }
 617
 618         function getQuickbarCompensator( $rows = 1 ) {
 619                 return "<td width='152' rowspan='{$rows}'>&nbsp;</td>";
 620         }
 621
 622         /**
 623          * This gets called immediately before the \</body\> tag.
 624          * @return String HTML to be put after \</body\> ???
 625          */
 626         function afterContent() {
 627                 $printfooter = "<div class=\"printfooter\">\n" . $this->printFooter() . "</div>\n";
 628                 return $printfooter . $this->doAfterContent();
 629         }
 630
 631         /** @return string Retrievied from HTML text */
 632         function printSource() {
 633                 global $wgTitle;
 634                 $url = htmlspecialchars( $wgTitle->getFullURL() );
 635                 return wfMsg( 'retrievedfrom', '<a href="'.$url.'">'.$url.'</a>' );
 636         }
 637
 638         function printFooter() {
 639                 return "<p>" .  $this->printSource() .
 640                         "</p>\n\n<p>" . $this->pageStats() . "</p>\n";
 641         }
 642
 643         /** overloaded by derived classes */
 644         function doAfterContent() { }
 645
 646         function pageTitleLinks() {
 647                 global $wgOut, $wgTitle, $wgUser, $wgRequest;
 648
 649                 extract( $wgRequest->getValues( 'oldid', 'diff' ) );
 650                 $action = $wgRequest->getText( 'action' );
 651
 652                 $s = $this->printableLink();
 653                 $disclaimer = $this->disclaimerLink(); # may be empty
 654                 if( $disclaimer ) {
 655                         $s .= ' | ' . $disclaimer;
 656                 }
 657                 $privacy = $this->privacyLink(); # may be empty too
 658                 if( $privacy ) {
 659                         $s .= ' | ' . $privacy;
 660                 }
 661
 662                 if ( $wgOut->isArticleRelated() ) {
 663                         if ( $wgTitle->getNamespace() == NS_IMAGE ) {
 664                                 $name = $wgTitle->getDBkey();
 665                                 $image = new Image( $wgTitle );
 666                                 if( $image->exists() ) {
 667                                         $link = htmlspecialchars( $image->getURL() );
 668                                         $style = $this->getInternalLinkAttributes( $link, $name );
 669                                         $s .= " | <a href=\"{$link}\"{$style}>{$name}</a>";
 670                                 }
 671                         }
 672                 }
 673                 if ( 'history' == $action || isset( $diff ) || isset( $oldid ) ) {
 674                         $s .= ' | ' . $this->makeKnownLinkObj( $wgTitle,
 675                                         wfMsg( 'currentrev' ) );
 676                 }
 677
 678                 if ( $wgUser->getNewtalk() ) {
 679                         # do not show "You have new messages" text when we are viewing our
 680                         # own talk page
 681                         if( !$wgTitle->equals( $wgUser->getTalkPage() ) ) {
 682                                 $tl = $this->makeKnownLinkObj( $wgUser->getTalkPage(), wfMsgHtml( 'newmessageslink' ), 'redirect=no' );
 683                                 $dl = $this->makeKnownLinkObj( $wgUser->getTalkPage(), wfMsgHtml( 'newmessagesdifflink' ), 'diff=cur' );
 684                                 $s.= ' | <strong>'. wfMsg( 'youhavenewmessages', $tl, $dl ) . '</strong>';
 685                                 # disable caching
 686                                 $wgOut->setSquidMaxage(0);
 687                                 $wgOut->enableClientCache(false);
 688                         }
 689                 }
 690
 691                 $undelete = $this->getUndeleteLink();
 692                 if( !empty( $undelete ) ) {
 693                         $s .= ' | '.$undelete;
 694                 }
 695                 return $s;
 696         }
 697
 698         function getUndeleteLink() {
 699                 global $wgUser, $wgTitle, $wgContLang, $action;
 700                 if(     $wgUser->isAllowed( 'deletedhistory' ) &&
 701                         (($wgTitle->getArticleId() == 0) || ($action == "history")) &&
 702                         ($n = $wgTitle->isDeleted() ) )
 703                 {
 704                         if ( $wgUser->isAllowed( 'delete' ) ) {
 705                                 $msg = 'thisisdeleted';
 706                         } else {
 707                                 $msg = 'viewdeleted';
 708                         }
 709                         return wfMsg( $msg,
 710                                 $this->makeKnownLink(
 711                                         $wgContLang->SpecialPage( 'Undelete/' . $wgTitle->getPrefixedDBkey() ),
 712                                         wfMsgExt( 'restorelink', array( 'parsemag', 'escape' ), $n ) ) );
 713                 }
 714                 return '';
 715         }
 716
 717         function printableLink() {
 718                 global $wgOut, $wgFeedClasses, $wgRequest;
 719
 720                 $baseurl = $_SERVER['REQUEST_URI'];
 721                 if( strpos( '?', $baseurl ) == false ) {
 722                         $baseurl .= '?';
 723                 } else {
 724                         $baseurl .= '&';
 725                 }
 726                 $baseurl = htmlspecialchars( $baseurl );
 727                 $printurl = $wgRequest->escapeAppendQuery( 'printable=yes' );
 728
 729                 $s = "<a href=\"$printurl\">" . wfMsg( 'printableversion' ) . '</a>';
 730                 if( $wgOut->isSyndicated() ) {
 731                         foreach( $wgFeedClasses as $format => $class ) {
 732                                 $feedurl = $wgRequest->escapeAppendQuery( "feed=$format" );
 733                                 $s .= " | <a href=\"$feedurl\">{$format}</a>";
 734                         }
 735                 }
 736                 return $s;
 737         }
 738
 739         function pageTitle() {
 740                 global $wgOut;
 741                 $s = '<h1 class="pagetitle">' . htmlspecialchars( $wgOut->getPageTitle() ) . '</h1>';
 742                 return $s;
 743         }
 744
 745         function pageSubtitle() {
 746                 global $wgOut;
 747
 748                 $sub = $wgOut->getSubtitle();
 749                 if ( '' == $sub ) {
 750                         global $wgExtraSubtitle;
 751                         $sub = wfMsg( 'tagline' ) . $wgExtraSubtitle;
 752                 }
 753                 $subpages = $this->subPageSubtitle();
 754                 $sub .= !empty($subpages)?"</p><p class='subpages'>$subpages":'';
 755                 $s = "<p class='subtitle'>{$sub}</p>\n";
 756                 return $s;
 757         }
 758
 759         function subPageSubtitle() {
 760                 global $wgOut,$wgTitle,$wgNamespacesWithSubpages;
 761                 $subpages = '';
 762                 if($wgOut->isArticle() && !empty($wgNamespacesWithSubpages[$wgTitle->getNamespace()])) {
 763                         $ptext=$wgTitle->getPrefixedText();
 764                         if(preg_match('/\//',$ptext)) {
 765                                 $links = explode('/',$ptext);
 766                                 $c = 0;
 767                                 $growinglink = '';
 768                                 foreach($links as $link) {
 769                                         $c++;
 770                                         if ($c<count($links)) {
 771                                                 $growinglink .= $link;
 772                                                 $getlink = $this->makeLink( $growinglink, htmlspecialchars( $link ) );
 773                                                 if(preg_match('/class="new"/i',$getlink)) { break; } # this is a hack, but it saves time
 774                                                 if ($c>1) {
 775                                                         $subpages .= ' | ';
 776                                                 } else  {
 777                                                         $subpages .= '&lt; ';
 778                                                 }
 779                                                 $subpages .= $getlink;
 780                                                 $growinglink .= '/';
 781                                         }
 782                                 }
 783                         }
 784                 }
 785                 return $subpages;
 786         }
 787
 788         function nameAndLogin() {
 789                 global $wgUser, $wgTitle, $wgLang, $wgContLang, $wgShowIPinHeader;
 790
 791                 $li = $wgContLang->specialPage( 'Userlogin' );
 792                 $lo = $wgContLang->specialPage( 'Userlogout' );
 793
 794                 $s = '';
 795                 if ( $wgUser->isAnon() ) {
 796                         if( $wgShowIPinHeader && isset( $_COOKIE[ini_get('session.name')] ) ) {
 797                                 $n = wfGetIP();
 798
 799                                 $tl = $this->makeKnownLinkObj( $wgUser->getTalkPage(),
 800                                   $wgLang->getNsText( NS_TALK ) );
 801
 802                                 $s .= $n . ' ('.$tl.')';
 803                         } else {
 804                                 $s .= wfMsg('notloggedin');
 805                         }
 806
 807                         $rt = $wgTitle->getPrefixedURL();
 808                         if ( 0 == strcasecmp( urlencode( $lo ), $rt ) ) {
 809                                 $q = '';
 810                         } else { $q = "returnto={$rt}"; }
 811
 812                         $s .= "\n<br />" . $this->makeKnownLinkObj(
 813                                 Title::makeTitle( NS_SPECIAL, 'Userlogin' ),
 814                                 wfMsg( 'login' ), $q );
 815                 } else {
 816                         $n = $wgUser->getName();
 817                         $rt = $wgTitle->getPrefixedURL();
 818                         $tl = $this->makeKnownLinkObj( $wgUser->getTalkPage(),
 819                           $wgLang->getNsText( NS_TALK ) );
 820
 821                         $tl = " ({$tl})";
 822
 823                         $s .= $this->makeKnownLinkObj( $wgUser->getUserPage(),
 824                           $n ) . "{$tl}<br />" .
 825                           $this->makeKnownLinkObj( Title::makeTitle( NS_SPECIAL, 'Userlogout' ), wfMsg( 'logout' ),
 826                           "returnto={$rt}" ) . ' | ' .
 827                           $this->specialLink( 'preferences' );
 828                 }
 829                 $s .= ' | ' . $this->makeKnownLink( wfMsgForContent( 'helppage' ),
 830                   wfMsg( 'help' ) );
 831
 832                 return $s;
 833         }
 834
 835         function getSearchLink() {
 836                 $searchPage =& Title::makeTitle( NS_SPECIAL, 'Search' );
 837                 return $searchPage->getLocalURL();
 838         }
 839
 840         function escapeSearchLink() {
 841                 return htmlspecialchars( $this->getSearchLink() );
 842         }
 843
 844         function searchForm() {
 845                 global $wgRequest;
 846                 $search = $wgRequest->getText( 'search' );
 847
 848                 $s = '<form name="search" class="inline" method="post" action="'
 849                   . $this->escapeSearchLink() . "\">\n"
 850                   . '<input type="text" name="search" size="19" value="'
 851                   . htmlspecialchars(substr($search,0,256)) . "\" />\n"
 852                   . '<input type="submit" name="go" value="' . wfMsg ('go') . '" />&nbsp;'
 853                   . '<input type="submit" name="fulltext" value="' . wfMsg ('searchbutton') . "\" />\n</form>";
 854
 855                 return $s;
 856         }
 857
 858         function topLinks() {
 859                 global $wgOut;
 860                 $sep = " |\n";
 861
 862                 $s = $this->mainPageLink() . $sep
 863                   . $this->specialLink( 'recentchanges' );
 864
 865                 if ( $wgOut->isArticleRelated() ) {
 866                         $s .=  $sep . $this->editThisPage()
 867                           . $sep . $this->historyLink();
 868                 }
 869                 # Many people don't like this dropdown box
 870                 #$s .= $sep . $this->specialPagesList();
 871
 872                 /* show links to different language variants */
 873                 global $wgDisableLangConversion, $wgContLang, $wgTitle;
 874                 $variants = $wgContLang->getVariants();
 875                 if( !$wgDisableLangConversion && sizeof( $variants ) > 1 ) {
 876                         foreach( $variants as $code ) {
 877                                 $varname = $wgContLang->getVariantname( $code );
 878                                 if( $varname == 'disable' )
 879                                         continue;
 880                                 $s .= ' | <a href="' . $wgTitle->getLocalUrl( 'variant=' . $code ) . '">' . $varname . '</a>';
 881                         }
 882                 }
 883
 884                 return $s;
 885         }
 886
 887         function bottomLinks() {
 888                 global $wgOut, $wgUser, $wgTitle, $wgUseTrackbacks;
 889                 $sep = " |\n";
 890
 891                 $s = '';
 892                 if ( $wgOut->isArticleRelated() ) {
 893                         $s .= '<strong>' . $this->editThisPage() . '</strong>';
 894                         if ( $wgUser->isLoggedIn() ) {
 895                                 $s .= $sep . $this->watchThisPage();
 896                         }
 897                         $s .= $sep . $this->talkLink()
 898                           . $sep . $this->historyLink()
 899                           . $sep . $this->whatLinksHere()
 900                           . $sep . $this->watchPageLinksLink();
 901
 902                         if ($wgUseTrackbacks)
 903                                 $s .= $sep . $this->trackbackLink();
 904
 905                         if ( $wgTitle->getNamespace() == NS_USER
 906                             || $wgTitle->getNamespace() == NS_USER_TALK )
 907
 908                         {
 909                                 $id=User::idFromName($wgTitle->getText());
 910                                 $ip=User::isIP($wgTitle->getText());
 911
 912                                 if($id || $ip) { # both anons and non-anons have contri list
 913                                         $s .= $sep . $this->userContribsLink();
 914                                 }
 915                                 if( $this->showEmailUser( $id ) ) {
 916                                         $s .= $sep . $this->emailUserLink();
 917                                 }
 918                         }
 919                         if ( $wgTitle->getArticleId() ) {
 920                                 $s .= "\n<br />";
 921                                 if($wgUser->isAllowed('delete')) { $s .= $this->deleteThisPage(); }
 922                                 if($wgUser->isAllowed('protect')) { $s .= $sep . $this->protectThisPage(); }
 923                                 if($wgUser->isAllowed('move')) { $s .= $sep . $this->moveThisPage(); }
 924                         }
 925                         $s .= "<br />\n" . $this->otherLanguages();
 926                 }
 927                 return $s;
 928         }
 929
 930         function pageStats() {
 931                 global $wgOut, $wgLang, $wgArticle, $wgRequest, $wgUser;
 932                 global $wgDisableCounters, $wgMaxCredits, $wgShowCreditsIfMax, $wgTitle, $wgPageShowWatchingUsers;
 933
 934                 extract( $wgRequest->getValues( 'oldid', 'diff' ) );
 935                 if ( ! $wgOut->isArticle() ) { return ''; }
 936                 if ( isset( $oldid ) || isset( $diff ) ) { return ''; }
 937                 if ( 0 == $wgArticle->getID() ) { return ''; }
 938
 939                 $s = '';
 940                 if ( !$wgDisableCounters ) {
 941                         $count = $wgLang->formatNum( $wgArticle->getCount() );
 942                         if ( $count ) {
 943                                 $s = wfMsgExt( 'viewcount', array( 'parseinline' ), $count );
 944                         }
 945                 }
 946
 947                 if (isset($wgMaxCredits) && $wgMaxCredits != 0) {
 948                     require_once('Credits.php');
 949                     $s .= ' ' . getCredits($wgArticle, $wgMaxCredits, $wgShowCreditsIfMax);
 950                 } else {
 951                     $s .= $this->lastModified();
 952                 }
 953
 954                 if ($wgPageShowWatchingUsers && $wgUser->getOption( 'shownumberswatching' )) {
 955                         $dbr =& wfGetDB( DB_SLAVE );
 956                         extract( $dbr->tableNames( 'watchlist' ) );
 957                         $sql = "SELECT COUNT(*) AS n FROM $watchlist
 958                                 WHERE wl_title='" . $dbr->strencode($wgTitle->getDBKey()) .
 959                                 "' AND  wl_namespace=" . $wgTitle->getNamespace() ;
 960                         $res = $dbr->query( $sql, 'Skin::pageStats');
 961                         $x = $dbr->fetchObject( $res );
 962                         $s .= ' ' . wfMsg('number_of_watching_users_pageview', $x->n );
 963                 }
 964
 965                 return $s . ' ' .  $this->getCopyright();
 966         }
 967
 968         function getCopyright( $type = 'detect' ) {
 969                 global $wgRightsPage, $wgRightsUrl, $wgRightsText, $wgRequest;
 970
 971                 if ( $type == 'detect' ) {
 972                         $oldid = $wgRequest->getVal( 'oldid' );
 973                         $diff = $wgRequest->getVal( 'diff' );
 974
 975                         if ( !is_null( $oldid ) && is_null( $diff ) && wfMsgForContent( 'history_copyright' ) !== '-' ) {
 976                                 $type = 'history';
 977                         } else {
 978                                 $type = 'normal';
 979                         }
 980                 }
 981
 982                 if ( $type == 'history' ) {
 983                         $msg = 'history_copyright';
 984                 } else {
 985                         $msg = 'copyright';
 986                 }
 987
 988                 $out = '';
 989                 if( $wgRightsPage ) {
 990                         $link = $this->makeKnownLink( $wgRightsPage, $wgRightsText );
 991                 } elseif( $wgRightsUrl ) {
 992                         $link = $this->makeExternalLink( $wgRightsUrl, $wgRightsText );
 993                 } else {
 994                         # Give up now
 995                         return $out;
 996                 }
 997                 $out .= wfMsgForContent( $msg, $link );
 998                 return $out;
 999         }
1000
1001         function getCopyrightIcon() {
1002                 global $wgRightsUrl, $wgRightsText, $wgRightsIcon, $wgCopyrightIcon;
1003                 $out = '';
1004                 if ( isset( $wgCopyrightIcon ) && $wgCopyrightIcon ) {
1005                         $out = $wgCopyrightIcon;
1006                 } else if ( $wgRightsIcon ) {
1007                         $icon = htmlspecialchars( $wgRightsIcon );
1008                         if ( $wgRightsUrl ) {
1009                                 $url = htmlspecialchars( $wgRightsUrl );
1010                                 $out .= '<a href="'.$url.'">';
1011                         }
1012                         $text = htmlspecialchars( $wgRightsText );
1013                         $out .= "<img src=\"$icon\" alt='$text' />";
1014                         if ( $wgRightsUrl ) {
1015                                 $out .= '</a>';
1016                         }
1017                 }
1018                 return $out;
1019         }
1020
1021         function getPoweredBy() {
1022                 global $wgStylePath;
1023                 $url = htmlspecialchars( "$wgStylePath/common/images/poweredby_mediawiki_88x31.png" );
1024                 $img = '<a href="http://www.mediawiki.org/"><img src="'.$url.'" alt="MediaWiki" /></a>';
1025                 return $img;
1026         }
1027
1028         function lastModified() {
1029                 global $wgLang, $wgArticle, $wgLoadBalancer;
1030
1031                 $timestamp = $wgArticle->getTimestamp();
1032                 if ( $timestamp ) {
1033                         $d = $wgLang->timeanddate( $timestamp, true );
1034                         $s = ' ' . wfMsg( 'lastmodified', $d );
1035                 } else {
1036                         $s = '';
1037                 }
1038                 if ( $wgLoadBalancer->getLaggedSlaveMode() ) {
1039                         $s .= ' <strong>' . wfMsg( 'laggedslavemode' ) . '</strong>';
1040                 }
1041                 return $s;
1042         }
1043
1044         function logoText( $align = '' ) {
1045                 if ( '' != $align ) { $a = " align='{$align}'"; }
1046                 else { $a = ''; }
1047
1048                 $mp = wfMsg( 'mainpage' );
1049                 $titleObj = Title::newFromText( $mp );
1050                 if ( is_object( $titleObj ) ) {
1051                         $url = $titleObj->escapeLocalURL();
1052                 } else {
1053                         $url = '';
1054                 }
1055
1056                 $logourl = $this->getLogo();
1057                 $s = "<a href='{$url}'><img{$a} src='{$logourl}' alt='[{$mp}]' /></a>";
1058                 return $s;
1059         }
1060
1061         /**
1062          * show a drop-down box of special pages
1063          * @TODO crash bug913. Need to be rewrote completly.
1064          */
1065         function specialPagesList() {
1066                 global $wgUser, $wgContLang, $wgServer, $wgRedirectScript;
1067                 require_once('SpecialPage.php');
1068                 $a = array();
1069                 $pages = SpecialPage::getPages();
1070
1071                 // special pages without access restriction
1072                 foreach ( $pages[''] as $name => $page ) {
1073                         $a[$name] = $page->getDescription();
1074                 }
1075
1076                 // Other special pages that are restricted.
1077                 foreach ( $pages['restricted'] as $name => $page ) {
1078                         if( $wgUser->isAllowed( $page->getRestriction() ) ) {
1079                                 $a[$name] = $page->getDescription();
1080                         }
1081                 }
1082
1083                 $go = wfMsg( 'go' );
1084                 $sp = wfMsg( 'specialpages' );
1085                 $spp = $wgContLang->specialPage( 'Specialpages' );
1086
1087                 $s = '<form id="specialpages" method="get" class="inline" ' .
1088                   'action="' . htmlspecialchars( "{$wgServer}{$wgRedirectScript}" ) . "\">\n";
1089                 $s .= "<select name=\"wpDropdown\">\n";
1090                 $s .= "<option value=\"{$spp}\">{$sp}</option>\n";
1091
1092
1093                 foreach ( $a as $name => $desc ) {
1094                         $p = $wgContLang->specialPage( $name );
1095                         $s .= "<option value=\"{$p}\">{$desc}</option>\n";
1096                 }
1097                 $s .= "</select>\n";
1098                 $s .= "<input type='submit' value=\"{$go}\" name='redirect' />\n";
1099                 $s .= "</form>\n";
1100                 return $s;
1101         }
1102
1103         function mainPageLink() {
1104                 $mp = wfMsgForContent( 'mainpage' );
1105                 $mptxt = wfMsg( 'mainpage');
1106                 $s = $this->makeKnownLink( $mp, $mptxt );
1107                 return $s;
1108         }
1109
1110         function copyrightLink() {
1111                 $s = $this->makeKnownLink( wfMsgForContent( 'copyrightpage' ),
1112                   wfMsg( 'copyrightpagename' ) );
1113                 return $s;
1114         }
1115
1116         function privacyLink() {
1117                 $privacy = wfMsg( 'privacy' );
1118                 if ($privacy == '-') {
1119                         return '';
1120                 } else {
1121                         return $this->makeKnownLink( wfMsgForContent( 'privacypage' ), $privacy);
1122                 }
1123         }
1124
1125         function aboutLink() {
1126                 $s = $this->makeKnownLink( wfMsgForContent( 'aboutpage' ),
1127                   wfMsg( 'aboutsite' ) );
1128                 return $s;
1129         }
1130
1131         function disclaimerLink() {
1132                 $disclaimers = wfMsg( 'disclaimers' );
1133                 if ($disclaimers == '-') {
1134                         return '';
1135                 } else {
1136                         return $this->makeKnownLink( wfMsgForContent( 'disclaimerpage' ),
1137                                                      $disclaimers );
1138                 }
1139         }
1140
1141         function editThisPage() {
1142                 global $wgOut, $wgTitle;
1143
1144                 if ( ! $wgOut->isArticleRelated() ) {
1145                         $s = wfMsg( 'protectedpage' );
1146                 } else {
1147                         if ( $wgTitle->userCanEdit() ) {
1148                                 $t = wfMsg( 'editthispage' );
1149                         } else {
1150                                 $t = wfMsg( 'viewsource' );
1151                         }
1152
1153                         $s = $this->makeKnownLinkObj( $wgTitle, $t, $this->editUrlOptions() );
1154                 }
1155                 return $s;
1156         }
1157
1158         /**
1159          * Return URL options for the 'edit page' link.
1160          * This may include an 'oldid' specifier, if the current page view is such.
1161          *
1162          * @return string
1163          * @private
1164          */
1165         function editUrlOptions() {
1166                 global $wgArticle;
1167
1168                 if( $this->mRevisionId && ! $wgArticle->isCurrent() ) {
1169                         return "action=edit&oldid=" . intval( $this->mRevisionId );
1170                 } else {
1171                         return "action=edit";
1172                 }
1173         }
1174
1175         function deleteThisPage() {
1176                 global $wgUser, $wgTitle, $wgRequest;
1177
1178                 $diff = $wgRequest->getVal( 'diff' );
1179                 if ( $wgTitle->getArticleId() && ( ! $diff ) && $wgUser->isAllowed('delete') ) {
1180                         $t = wfMsg( 'deletethispage' );
1181
1182                         $s = $this->makeKnownLinkObj( $wgTitle, $t, 'action=delete' );
1183                 } else {
1184                         $s = '';
1185                 }
1186                 return $s;
1187         }
1188
1189         function protectThisPage() {
1190                 global $wgUser, $wgTitle, $wgRequest;
1191
1192                 $diff = $wgRequest->getVal( 'diff' );
1193                 if ( $wgTitle->getArticleId() && ( ! $diff ) && $wgUser->isAllowed('protect') ) {
1194                         if ( $wgTitle->isProtected() ) {
1195                                 $t = wfMsg( 'unprotectthispage' );
1196                                 $q = 'action=unprotect';
1197                         } else {
1198                                 $t = wfMsg( 'protectthispage' );
1199                                 $q = 'action=protect';
1200                         }
1201                         $s = $this->makeKnownLinkObj( $wgTitle, $t, $q );
1202                 } else {
1203                         $s = '';
1204                 }
1205                 return $s;
1206         }
1207
1208         function watchThisPage() {
1209                 global $wgOut, $wgTitle;
1210
1211                 if ( $wgOut->isArticleRelated() ) {
1212                         if ( $wgTitle->userIsWatching() ) {
1213                                 $t = wfMsg( 'unwatchthispage' );
1214                                 $q = 'action=unwatch';
1215                         } else {
1216                                 $t = wfMsg( 'watchthispage' );
1217                                 $q = 'action=watch';
1218                         }
1219                         $s = $this->makeKnownLinkObj( $wgTitle, $t, $q );
1220                 } else {
1221                         $s = wfMsg( 'notanarticle' );
1222                 }
1223                 return $s;
1224         }
1225
1226         function moveThisPage() {
1227                 global $wgTitle;
1228
1229                 if ( $wgTitle->userCanMove() ) {
1230                         return $this->makeKnownLinkObj( Title::makeTitle( NS_SPECIAL, 'Movepage' ),
1231                           wfMsg( 'movethispage' ), 'target=' . $wgTitle->getPrefixedURL() );
1232                 } else {
1233                         // no message if page is protected - would be redundant
1234                         return '';
1235                 }
1236         }
1237
1238         function historyLink() {
1239                 global $wgTitle;
1240
1241                 return $this->makeKnownLinkObj( $wgTitle,
1242                   wfMsg( 'history' ), 'action=history' );
1243         }
1244
1245         function whatLinksHere() {
1246                 global $wgTitle;
1247
1248                 return $this->makeKnownLinkObj( Title::makeTitle( NS_SPECIAL, 'Whatlinkshere' ),
1249                   wfMsg( 'whatlinkshere' ), 'target=' . $wgTitle->getPrefixedURL() );
1250         }
1251
1252         function userContribsLink() {
1253                 global $wgTitle;
1254
1255                 return $this->makeKnownLinkObj( Title::makeTitle( NS_SPECIAL, 'Contributions' ),
1256                   wfMsg( 'contributions' ), 'target=' . $wgTitle->getPartialURL() );
1257         }
1258
1259         function showEmailUser( $id ) {
1260                 global $wgEnableEmail, $wgEnableUserEmail, $wgUser;
1261                 return $wgEnableEmail &&
1262                        $wgEnableUserEmail &&
1263                        $wgUser->isLoggedIn() && # show only to signed in users
1264                        0 != $id; # we can only email to non-anons ..
1265 #                      '' != $id->getEmail() && # who must have an email address stored ..
1266 #                      0 != $id->getEmailauthenticationtimestamp() && # .. which is authenticated
1267 #                      1 != $wgUser->getOption('disablemail'); # and not disabled
1268         }
1269
1270         function emailUserLink() {
1271                 global $wgTitle;
1272
1273                 return $this->makeKnownLinkObj( Title::makeTitle( NS_SPECIAL, 'Emailuser' ),
1274                   wfMsg( 'emailuser' ), 'target=' . $wgTitle->getPartialURL() );
1275         }
1276
1277         function watchPageLinksLink() {
1278                 global $wgOut, $wgTitle;
1279
1280                 if ( ! $wgOut->isArticleRelated() ) {
1281                         return '(' . wfMsg( 'notanarticle' ) . ')';
1282                 } else {
1283                         return $this->makeKnownLinkObj( Title::makeTitle( NS_SPECIAL,
1284                           'Recentchangeslinked' ), wfMsg( 'recentchangeslinked' ),
1285                           'target=' . $wgTitle->getPrefixedURL() );
1286                 }
1287         }
1288
1289         function trackbackLink() {
1290                 global $wgTitle;
1291
1292                 return "<a href=\"" . $wgTitle->trackbackURL() . "\">"
1293                         . wfMsg('trackbacklink') . "</a>";
1294         }
1295
1296         function otherLanguages() {
1297                 global $wgOut, $wgContLang, $wgHideInterlanguageLinks;
1298
1299                 if ( $wgHideInterlanguageLinks ) {
1300                         return '';
1301                 }
1302
1303                 $a = $wgOut->getLanguageLinks();
1304                 if ( 0 == count( $a ) ) {
1305                         return '';
1306                 }
1307
1308                 $s = wfMsg( 'otherlanguages' ) . ': ';
1309                 $first = true;
1310                 if($wgContLang->isRTL()) $s .= '<span dir="LTR">';
1311                 foreach( $a as $l ) {
1312                         if ( ! $first ) { $s .= ' | '; }
1313                         $first = false;
1314
1315                         $nt = Title::newFromText( $l );
1316                         $url = $nt->escapeFullURL();
1317                         $text = $wgContLang->getLanguageName( $nt->getInterwiki() );
1318
1319                         if ( '' == $text ) { $text = $l; }
1320                         $style = $this->getExternalLinkAttributes( $l, $text );
1321                         $s .= "<a href=\"{$url}\"{$style}>{$text}</a>";
1322                 }
1323                 if($wgContLang->isRTL()) $s .= '</span>';
1324                 return $s;
1325         }
1326
1327         function bugReportsLink() {
1328                 $s = $this->makeKnownLink( wfMsgForContent( 'bugreportspage' ),
1329                   wfMsg( 'bugreports' ) );
1330                 return $s;
1331         }
1332
1333         function dateLink() {
1334                 $t1 = Title::newFromText( gmdate( 'F j' ) );
1335                 $t2 = Title::newFromText( gmdate( 'Y' ) );
1336
1337                 $id = $t1->getArticleID();
1338
1339                 if ( 0 == $id ) {
1340                         $s = $this->makeBrokenLink( $t1->getText() );
1341                 } else {
1342                         $s = $this->makeKnownLink( $t1->getText() );
1343                 }
1344                 $s .= ', ';
1345
1346                 $id = $t2->getArticleID();
1347
1348                 if ( 0 == $id ) {
1349                         $s .= $this->makeBrokenLink( $t2->getText() );
1350                 } else {
1351                         $s .= $this->makeKnownLink( $t2->getText() );
1352                 }
1353                 return $s;
1354         }
1355
1356         function talkLink() {
1357                 global $wgTitle;
1358
1359                 if ( NS_SPECIAL == $wgTitle->getNamespace() ) {
1360                         # No discussion links for special pages
1361                         return '';
1362                 }
1363
1364                 if( $wgTitle->isTalkPage() ) {
1365                         $link = $wgTitle->getSubjectPage();
1366                         switch( $link->getNamespace() ) {
1367                         case NS_MAIN:
1368                                 $text = wfMsg('articlepage');
1369                                 break;
1370                         case NS_USER:
1371                                 $text = wfMsg('userpage');
1372                                 break;
1373                         case NS_PROJECT:
1374                                 $text = wfMsg('projectpage');
1375                                 break;
1376                         case NS_IMAGE:
1377                                 $text = wfMsg('imagepage');
1378                                 break;
1379                         default:
1380                                 $text= wfMsg('articlepage');
1381                         }
1382                 } else {
1383                         $link = $wgTitle->getTalkPage();
1384                         $text = wfMsg( 'talkpage' );
1385                 }
1386
1387                 $s = $this->makeLinkObj( $link, $text );
1388
1389                 return $s;
1390         }
1391
1392         function commentLink() {
1393                 global $wgTitle, $wgOut;
1394
1395                 if ( $wgTitle->getNamespace() == NS_SPECIAL ) {
1396                         return '';
1397                 }
1398
1399                 # __NEWSECTIONLINK___ changes behaviour here
1400                 # If it's present, the link points to this page, otherwise
1401                 # it points to the talk page
1402                 if( $wgTitle->isTalkPage() ) {
1403                         $title =& $wgTitle;
1404                 } elseif( $wgOut->showNewSectionLink() ) {
1405                         $title =& $wgTitle;
1406                 } else {
1407                         $title =& $wgTitle->getTalkPage();
1408                 }
1409
1410                 return $this->makeKnownLinkObj( $title, wfMsg( 'postcomment' ), 'action=edit&section=new' );
1411         }
1412
1413         /* these are used extensively in SkinTemplate, but also some other places */
1414         /*static*/ function makeSpecialUrl( $name, $urlaction='' ) {
1415                 $title = Title::makeTitle( NS_SPECIAL, $name );
1416                 return $title->getLocalURL( $urlaction );
1417         }
1418
1419         /*static*/ function makeI18nUrl ( $name, $urlaction='' ) {
1420                 $title = Title::newFromText( wfMsgForContent($name) );
1421                 $this->checkTitle($title, $name);
1422                 return $title->getLocalURL( $urlaction );
1423         }
1424
1425         /*static*/ function makeUrl ( $name, $urlaction='' ) {
1426                 $title = Title::newFromText( $name );
1427                 $this->checkTitle($title, $name);
1428                 return $title->getLocalURL( $urlaction );
1429         }
1430
1431         # If url string starts with http, consider as external URL, else
1432         # internal
1433         /*static*/ function makeInternalOrExternalUrl( $name ) {
1434                 if ( preg_match( '/^(?:' . wfUrlProtocols() . ')/', $name ) ) {
1435                         return $name;
1436                 } else {
1437                         return $this->makeUrl( $name );
1438                 }
1439         }
1440
1441         # this can be passed the NS number as defined in Language.php
1442         /*static*/ function makeNSUrl( $name, $urlaction='', $namespace=NS_MAIN ) {
1443                 $title = Title::makeTitleSafe( $namespace, $name );
1444                 $this->checkTitle($title, $name);
1445                 return $title->getLocalURL( $urlaction );
1446         }
1447
1448         /* these return an array with the 'href' and boolean 'exists' */
1449         /*static*/ function makeUrlDetails ( $name, $urlaction='' ) {
1450                 $title = Title::newFromText( $name );
1451                 $this->checkTitle($title, $name);
1452                 return array(
1453                         'href' => $title->getLocalURL( $urlaction ),
1454                         'exists' => $title->getArticleID() != 0?true:false
1455                 );
1456         }
1457
1458         /**
1459          * Make URL details where the article exists (or at least it's convenient to think so)
1460          */
1461         function makeKnownUrlDetails( $name, $urlaction='' ) {
1462                 $title = Title::newFromText( $name );
1463                 $this->checkTitle($title, $name);
1464                 return array(
1465                         'href' => $title->getLocalURL( $urlaction ),
1466                         'exists' => true
1467                 );
1468         }
1469
1470         # make sure we have some title to operate on
1471         /*static*/ function checkTitle ( &$title, &$name ) {
1472                 if(!is_object($title)) {
1473                         $title = Title::newFromText( $name );
1474                         if(!is_object($title)) {
1475                                 $title = Title::newFromText( '--error: link target missing--' );
1476                         }
1477                 }
1478         }
1479
1480         /**
1481          * Build an array that represents the sidebar(s), the navigation bar among them
1482          *
1483          * @return array
1484          * @private
1485          */
1486         function buildSidebar() {
1487                 global $wgDBname, $parserMemc, $wgEnableSidebarCache;
1488                 global $wgLang, $wgContLang;
1489
1490                 $fname = 'SkinTemplate::buildSidebar';
1491
1492                 wfProfileIn( $fname );
1493
1494                 $key = "{$wgDBname}:sidebar";
1495                 $cacheSidebar = $wgEnableSidebarCache &&
1496                         ($wgLang->getCode() == $wgContLang->getCode());
1497
1498                 if ($cacheSidebar) {
1499                         $cachedsidebar = $parserMemc->get( $key );
1500                         if ($cachedsidebar!="") {
1501                                 wfProfileOut($fname);
1502                                 return $cachedsidebar;
1503                         }
1504                 }
1505
1506                 $bar = array();
1507                 $lines = explode( "\n", wfMsgForContent( 'sidebar' ) );
1508                 foreach ($lines as $line) {
1509                         if (strpos($line, '*') !== 0)
1510                                 continue;
1511                         if (strpos($line, '**') !== 0) {
1512                                 $line = trim($line, '* ');
1513                                 $heading = $line;
1514                         } else {
1515                                 if (strpos($line, '|') !== false) { // sanity check
1516                                         $line = explode( '|' , trim($line, '* '), 2 );
1517                                         $link = wfMsgForContent( $line[0] );
1518                                         if ($link == '-')
1519                                                 continue;
1520                                         if (wfEmptyMsg($line[1], $text = wfMsg($line[1])))
1521                                                 $text = $line[1];
1522                                         if (wfEmptyMsg($line[0], $link))
1523                                                 $link = $line[0];
1524                                         $href = $this->makeInternalOrExternalUrl( $link );
1525                                         $bar[$heading][] = array(
1526                                                 'text' => $text,
1527                                                 'href' => $href,
1528                                                 'id' => 'n-' . strtr($line[1], ' ', '-'),
1529                                                 'active' => false
1530                                         );
1531                                 } else { continue; }
1532                         }
1533                 }
1534                 if ($cacheSidebar)
1535                         $cachednotice = $parserMemc->set( $key, $bar, 86400 );
1536                 wfProfileOut( $fname );
1537                 return $bar;
1538         }
1539 }
1540 ?>