includes/Skin.php

   1 <?php
   2
   3 /**
   4  *
   5  * @package MediaWiki
   6  * @subpackage Skins
   7  */
   8
   9 /**
  10  * This is not a valid entry point, perform no further processing unless MEDIAWIKI is defined
  11  */
  12 if( defined( "MEDIAWIKI" ) ) {
  13
  14 # See skin.txt
  15 require_once( 'Linker.php' );
  16 require_once( 'Image.php' );
  17
  18 # Get a list of all skins available in /skins/
  19 # Build using the regular expression '^(.*).php$'
  20 # Array keys are all lower case, array value keep the case used by filename
  21 #
  22
  23 $skinDir = dir($IP.'/skins');
  24
  25 # while code from www.php.net
  26 while (false !== ($file = $skinDir->read())) {
  27         if(preg_match('/^([^.].*)\.php$/',$file, $matches)) {
  28                 $aSkin = $matches[1];
  29                 $wgValidSkinNames[strtolower($aSkin)] = $aSkin;
  30         }
  31 }
  32 $skinDir->close();
  33 unset($matches);
  34
  35 require_once( 'RecentChange.php' );
  36
  37 /**
  38  * @todo document
  39  * @package MediaWiki
  40  */
  41 class RCCacheEntry extends RecentChange
  42 {
  43         var $secureName, $link;
  44         var $curlink , $difflink, $lastlink , $usertalklink , $versionlink ;
  45         var $userlink, $timestamp, $watched;
  46
  47         function newFromParent( $rc )
  48         {
  49                 $rc2 = new RCCacheEntry;
  50                 $rc2->mAttribs = $rc->mAttribs;
  51                 $rc2->mExtra = $rc->mExtra;
  52                 return $rc2;
  53         }
  54 } ;
  55
  56
  57 /**
  58  * The main skin class that provide methods and properties for all other skins
  59  * including PHPTal skins.
  60  * This base class is also the "Standard" skin.
  61  * @package MediaWiki
  62  */
  63 class Skin extends Linker {
  64         /**#@+
  65          * @access private
  66          */
  67         var $lastdate, $lastline;
  68         var $rc_cache ; # Cache for Enhanced Recent Changes
  69         var $rcCacheIndex ; # Recent Changes Cache Counter for visibility toggle
  70         var $rcMoveIndex;
  71         /**#@-*/
  72
  73         /** Constructor, call parent constructor */
  74         function Skin() { parent::Linker(); }
  75
  76         function getSkinNames() {
  77                 global $wgValidSkinNames;
  78                 return $wgValidSkinNames;
  79         }
  80
  81         /** @return string path to the skin stylesheet */
  82         function getStylesheet() { return 'common/wikistandard.css'; }
  83
  84         /** @return string skin name */
  85         function getSkinName() {
  86                 return 'standard';
  87         }
  88
  89         function qbSetting() {
  90                 global $wgOut, $wgUser;
  91
  92                 if ( $wgOut->isQuickbarSuppressed() ) { return 0; }
  93                 $q = $wgUser->getOption( 'quickbar' );
  94                 if ( '' == $q ) { $q = 0; }
  95                 return $q;
  96         }
  97
  98         function initPage( &$out ) {
  99                 $fname = 'Skin::initPage';
 100                 wfProfileIn( $fname );
 101
 102                 $out->addLink( array( 'rel' => 'shortcut icon', 'href' => '/favicon.ico' ) );
 103
 104                 $this->addMetadataLinks($out);
 105
 106                 wfProfileOut( $fname );
 107         }
 108
 109         function addMetadataLinks( &$out ) {
 110                 global $wgTitle, $wgEnableDublinCoreRdf, $wgEnableCreativeCommonsRdf, $wgRdfMimeType, $action;
 111                 global $wgRightsPage, $wgRightsUrl, $wgUseTrackbacks;
 112
 113                 if( $out->isArticleRelated() ) {
 114                         # note: buggy CC software only reads first "meta" link
 115                         if( $wgEnableCreativeCommonsRdf ) {
 116                                 $out->addMetadataLink( array(
 117                                         'title' => 'Creative Commons',
 118                                         'type' => 'application/rdf+xml',
 119                                         'href' => $wgTitle->getLocalURL( 'action=creativecommons') ) );
 120                         }
 121                         if( $wgEnableDublinCoreRdf ) {
 122                                 $out->addMetadataLink( array(
 123                                         'title' => 'Dublin Core',
 124                                         'type' => 'application/rdf+xml',
 125                                         'href' => $wgTitle->getLocalURL( 'action=dublincore' ) ) );
 126                         }
 127                 }
 128                 $copyright = '';
 129                 if( $wgRightsPage ) {
 130                         $copy = Title::newFromText( $wgRightsPage );
 131                         if( $copy ) {
 132                                 $copyright = $copy->getLocalURL();
 133                         }
 134                 }
 135                 if( !$copyright && $wgRightsUrl ) {
 136                         $copyright = $wgRightsUrl;
 137                 }
 138                 if( $copyright ) {
 139                         $out->addLink( array(
 140                                 'rel' => 'copyright',
 141                                 'href' => $copyright ) );
 142                 }
 143         }
 144
 145         function outputPage( &$out ) {
 146                 global $wgDebugComments;
 147
 148                 wfProfileIn( 'Skin::outputPage' );
 149                 $this->initPage( $out );
 150
 151                 $out->out( $out->headElement() );
 152
 153                 $out->out( "\n<body" );
 154                 $ops = $this->getBodyOptions();
 155                 foreach ( $ops as $name => $val ) {
 156                         $out->out( " $name='$val'" );
 157                 }
 158                 $out->out( ">\n" );
 159                 if ( $wgDebugComments ) {
 160                         $out->out( "<!-- Wiki debugging output:\n" .
 161                           $out->mDebugtext . "-->\n" );
 162                 }
 163
 164                 $out->out( $this->beforeContent() );
 165
 166                 $out->out( $out->mBodytext . "\n" );
 167
 168                 $out->out( $this->afterContent() );
 169
 170                 wfProfileClose();
 171                 $out->out( $out->reportTime() );
 172
 173                 $out->out( "\n</body></html>" );
 174         }
 175
 176         function getHeadScripts() {
 177                 global $wgStylePath, $wgUser, $wgContLang, $wgAllowUserJs, $wgJsMimeType;
 178                 $r = "<script type=\"{$wgJsMimeType}\" src=\"{$wgStylePath}/common/wikibits.js\"></script>\n";
 179                 if( $wgAllowUserJs && $wgUser->isLoggedIn() ) {
 180                         $userpage = $wgUser->getUserPage();
 181                         $userjs = htmlspecialchars( $this->makeUrl(
 182                                 $userpage->getPrefixedText().'/'.$this->getSkinName().'.js',
 183                                 'action=raw&ctype='.$wgJsMimeType));
 184                         $r .= '<script type="'.$wgJsMimeType.'" src="'.$userjs."\"></script>\n";
 185                 }
 186                 return $r;
 187         }
 188
 189         /**
 190          * To make it harder for someone to slip a user a fake
 191          * user-JavaScript or user-CSS preview, a random token
 192          * is associated with the login session. If it's not
 193          * passed back with the preview request, we won't render
 194          * the code.
 195          *
 196          * @param string $action
 197          * @return bool
 198          * @access private
 199          */
 200         function userCanPreview( $action ) {
 201                 global $wgTitle, $wgRequest, $wgUser;
 202
 203                 if( $action != 'submit' )
 204                         return false;
 205                 if( !$wgRequest->wasPosted() )
 206                         return false;
 207                 if( !$wgTitle->userCanEditCssJsSubpage() )
 208                         return false;
 209                 return $wgUser->matchEditToken(
 210                         $wgRequest->getVal( 'wpEditToken' ) );
 211         }
 212
 213         # get the user/site-specific stylesheet, SkinPHPTal called from RawPage.php (settings are cached that way)
 214         function getUserStylesheet() {
 215                 global $wgOut, $wgStylePath, $wgContLang, $wgUser, $wgRequest, $wgTitle, $wgAllowUserCss;
 216                 $sheet = $this->getStylesheet();
 217                 $action = $wgRequest->getText('action');
 218                 $s = "@import \"$wgStylePath/$sheet\";\n";
 219                 if($wgContLang->isRTL()) $s .= "@import \"$wgStylePath/common/common_rtl.css\";\n";
 220                 if( $wgAllowUserCss && $wgUser->isLoggedIn() ) { # logged in
 221                         if($wgTitle->isCssSubpage() && $this->userCanPreview( $action ) ) {
 222                                 $s .= $wgRequest->getText('wpTextbox1');
 223                         } else {
 224                                 $userpage = $wgUser->getUserPage();
 225                                 $s.= '@import "'.$this->makeUrl(
 226                                         $userpage->getPrefixedText().'/'.$this->getSkinName().'.css',
 227                                         'action=raw&ctype=text/css').'";'."\n";
 228                         }
 229                 }
 230                 $s .= $this->doGetUserStyles();
 231                 return $s."\n";
 232         }
 233
 234         /**
 235          * placeholder, returns generated js in monobook
 236          */
 237         function getUserJs() { return; }
 238
 239         /**
 240          * Return html code that include User stylesheets
 241          */
 242         function getUserStyles() {
 243                 global $wgOut, $wgStylePath, $wgLang;
 244                 $s = "<style type='text/css'>\n";
 245                 $s .= "/*/*/ /*<![CDATA[*/\n"; # <-- Hide the styles from Netscape 4 without hiding them from IE/Mac
 246                 $s .= $this->getUserStylesheet();
 247                 $s .= "/*]]>*/ /* */\n";
 248                 $s .= "</style>\n";
 249                 return $s;
 250         }
 251
 252         /**
 253          * Some styles that are set by user through the user settings interface.
 254          */
 255         function doGetUserStyles() {
 256                 global $wgUser, $wgContLang, $wgSquidMaxage;
 257
 258                 $query = "action=raw&ctype=text/css&smaxage=$wgSquidMaxage";
 259                 $s = '@import "' . $this->makeNSUrl( 'Common.css', $query, NS_MEDIAWIKI ) . "\";\n" .
 260                         '@import "'.$this->makeNSUrl( ucfirst( $this->getSkinName() . '.css' ), $query, NS_MEDIAWIKI ) . "\";\n";
 261
 262                 return $s . $this->reallyDoGetUserStyles();
 263         }
 264
 265         function reallyDoGetUserStyles() {
 266                 global $wgUser;
 267                 $s = '';
 268                 if (($undopt = $wgUser->getOption("underline")) != 2) {
 269                         $underline = $undopt ? 'underline' : 'none';
 270                         $s .= "a { text-decoration: $underline; }\n";
 271                 }
 272                 if( $wgUser->getOption( 'highlightbroken' ) ) {
 273                         $s .= "a.new, #quickbar a.new { color: #CC2200; }\n";
 274                 } else {
 275                         $s .= <<<END
 276 a.new, #quickbar a.new,
 277 a.stub, #quickbar a.stub {
 278         color: inherit;
 279         text-decoration: inherit;
 280 }
 281 a.new:after, #quickbar a.new:after {
 282         content: "?";
 283         color: #CC2200;
 284         text-decoration: $underline;
 285 }
 286 a.stub:after, #quickbar a.stub:after {
 287         content: "!";
 288         color: #772233;
 289         text-decoration: $underline;
 290 }
 291 END;
 292                 }
 293                 if( $wgUser->getOption( 'justify' ) ) {
 294                         $s .= "#article, #bodyContent { text-align: justify; }\n";
 295                 }
 296                 if( !$wgUser->getOption( 'showtoc' ) ) {
 297                         $s .= "#toc { display: none; }\n";
 298                 }
 299                 if( !$wgUser->getOption( 'editsection' ) ) {
 300                         $s .= ".editsection { display: none; }\n";
 301                 }
 302                 return $s;
 303         }
 304
 305         function getBodyOptions() {
 306                 global $wgUser, $wgTitle, $wgNamespaceBackgrounds, $wgOut, $wgRequest;
 307
 308                 extract( $wgRequest->getValues( 'oldid', 'redirect', 'diff' ) );
 309
 310                 if ( 0 != $wgTitle->getNamespace() ) {
 311                         $a = array( 'bgcolor' => '#ffffec' );
 312                 }
 313                 else $a = array( 'bgcolor' => '#FFFFFF' );
 314                 if($wgOut->isArticle() && $wgUser->getOption('editondblclick') &&
 315                   $wgTitle->userCanEdit() ) {
 316                         $t = wfMsg( 'editthispage' );
 317                         $oid = $red = '';
 318                         if ( !empty($redirect) && $redirect == 'no' ) {
 319                                 $red = "&redirect={$redirect}";
 320                         }
 321                         if ( !empty($oldid) && ! isset( $diff ) ) {
 322                                 $oid = "&oldid=" . intval( $oldid );
 323                         }
 324                         $s = $wgTitle->getFullURL( "action=edit{$oid}{$red}" );
 325                         $s = 'document.location = "' .$s .'";';
 326                         $a += array ('ondblclick' => $s);
 327
 328                 }
 329                 $a['onload'] = $wgOut->getOnloadHandler();
 330                 if( $wgUser->getOption( 'editsectiononrightclick' ) ) {
 331                         if( $a['onload'] != '' ) {
 332                                 $a['onload'] .= ';';
 333                         }
 334                         $a['onload'] .= 'setupRightClickEdit()';
 335                 }
 336                 return $a;
 337         }
 338
 339         /**
 340          * URL to the logo
 341          */
 342         function getLogo() {
 343                 global $wgLogo;
 344                 return $wgLogo;
 345         }
 346
 347         /**
 348          * This will be called immediately after the <body> tag.  Split into
 349          * two functions to make it easier to subclass.
 350          */
 351         function beforeContent() {
 352                 return $this->doBeforeContent();
 353         }
 354
 355         function doBeforeContent() {
 356                 global $wgOut, $wgTitle, $wgContLang;
 357                 $fname = 'Skin::doBeforeContent';
 358                 wfProfileIn( $fname );
 359
 360                 $s = '';
 361                 $qb = $this->qbSetting();
 362
 363                 if( $langlinks = $this->otherLanguages() ) {
 364                         $rows = 2;
 365                         $borderhack = '';
 366                 } else {
 367                         $rows = 1;
 368                         $langlinks = false;
 369                         $borderhack = 'class="top"';
 370                 }
 371
 372                 $s .= "\n<div id='content'>\n<div id='topbar'>\n" .
 373                   "<table border='0' cellspacing='0' width='98%'>\n<tr>\n";
 374
 375                 $shove = ($qb != 0);
 376                 $left = ($qb == 1 || $qb == 3);
 377                 if($wgContLang->isRTL()) $left = !$left;
 378
 379                 if ( !$shove ) {
 380                         $s .= "<td class='top' align='left' valign='top' rowspan='{$rows}'>\n" .
 381                           $this->logoText() . '</td>';
 382                 } elseif( $left ) {
 383                         $s .= $this->getQuickbarCompensator( $rows );
 384                 }
 385                 $l = $wgContLang->isRTL() ? 'right' : 'left';
 386                 $s .= "<td {$borderhack} align='$l' valign='top'>\n";
 387
 388                 $s .= $this->topLinks() ;
 389                 $s .= "<p class='subtitle'>" . $this->pageTitleLinks() . "</p>\n";
 390
 391                 $r = $wgContLang->isRTL() ? "left" : "right";
 392                 $s .= "</td>\n<td {$borderhack} valign='top' align='$r' nowrap='nowrap'>";
 393                 $s .= $this->nameAndLogin();
 394                 $s .= "\n<br />" . $this->searchForm() . "</td>";
 395
 396                 if ( $langlinks ) {
 397                         $s .= "</tr>\n<tr>\n<td class='top' colspan=\"2\">$langlinks</td>\n";
 398                 }
 399
 400                 if ( $shove && !$left ) { # Right
 401                         $s .= $this->getQuickbarCompensator( $rows );
 402                 }
 403                 $s .= "</tr>\n</table>\n</div>\n";
 404                 $s .= "\n<div id='article'>\n";
 405
 406                 $notice = wfGetSiteNotice();
 407                 if( $notice ) {
 408                         $s .= "\n<div id='siteNotice'>$notice</div>\n";
 409                 }
 410                 $s .= $this->pageTitle();
 411                 $s .= $this->pageSubtitle() ;
 412                 $s .= $this->getCategories();
 413                 wfProfileOut( $fname );
 414                 return $s;
 415         }
 416
 417
 418         function getCategoryLinks () {
 419                 global $wgOut, $wgTitle, $wgParser;
 420                 global $wgUseCategoryMagic, $wgUseCategoryBrowser, $wgLang;
 421
 422                 if( !$wgUseCategoryMagic ) return '' ;
 423                 if( count( $wgOut->mCategoryLinks ) == 0 ) return '';
 424
 425                 # Taken out so that they will be displayed in previews -- TS
 426                 #if( !$wgOut->isArticle() ) return '';
 427
 428                 $t = implode ( ' | ' , $wgOut->mCategoryLinks ) ;
 429                 $s = $this->makeKnownLinkObj( Title::makeTitle( NS_SPECIAL, 'Categories' ),
 430                         wfMsg( 'categories' ), 'article=' . urlencode( $wgTitle->getPrefixedDBkey() ) )
 431                         . ': ' . $t;
 432
 433                 # optional 'dmoz-like' category browser. Will be shown under the list
 434                 # of categories an article belong to
 435                 if($wgUseCategoryBrowser) {
 436                         $s .= '<br /><hr />';
 437
 438                         # get a big array of the parents tree
 439                         $parenttree = $wgTitle->getParentCategoryTree();
 440                         # Skin object passed by reference cause it can not be
 441                         # accessed under the method subfunction drawCategoryBrowser
 442                         $tempout = explode("\n", Skin::drawCategoryBrowser($parenttree, $this) );
 443                         # Clean out bogus first entry and sort them
 444                         unset($tempout[0]);
 445                         asort($tempout);
 446                         # Output one per line
 447                         $s .= implode("<br />\n", $tempout);
 448                 }
 449
 450                 return $s;
 451         }
 452
 453         /** Render the array as a serie of links.
 454          * @param array $tree Categories tree returned by Title::getParentCategoryTree
 455          * @param object &skin Skin passed by reference
 456          * @return string separated by &gt;, terminate with "\n"
 457          */
 458         function drawCategoryBrowser($tree, &$skin) {
 459                 $return = '';
 460                 foreach ($tree as $element => $parent) {
 461                         if (empty($parent)) {
 462                                 # element start a new list
 463                                 $return .= "\n";
 464                         } else {
 465                                 # grab the others elements
 466                                 $return .= Skin::drawCategoryBrowser($parent, $skin) . ' &gt; ';
 467                         }
 468                         # add our current element to the list
 469                         $eltitle = Title::NewFromText($element);
 470                         $return .=  $skin->makeLinkObj( $eltitle, $eltitle->getText() ) ;
 471                 }
 472                 return $return;
 473         }
 474
 475         function getCategories() {
 476                 $catlinks=$this->getCategoryLinks();
 477                 if(!empty($catlinks)) {
 478                         return "<p class='catlinks'>{$catlinks}</p>";
 479                 }
 480         }
 481
 482         function getQuickbarCompensator( $rows = 1 ) {
 483                 return "<td width='152' rowspan='{$rows}'>&nbsp;</td>";
 484         }
 485
 486         /**
 487          * This gets called immediately before the </body> tag.
 488          * @return string HTML to be put after </body> ???
 489          */
 490         function afterContent() {
 491                 $printfooter = "<div class=\"printfooter\">\n" . $this->printFooter() . "</div>\n";
 492                 return $printfooter . $this->doAfterContent();
 493         }
 494
 495         /** @return string Retrievied from HTML text */
 496         function printSource() {
 497                 global $wgTitle;
 498                 $url = htmlspecialchars( $wgTitle->getFullURL() );
 499                 return wfMsg( 'retrievedfrom', '<a href="'.$url.'">'.$url.'</a>' );
 500         }
 501
 502         function printFooter() {
 503                 return "<p>" .  $this->printSource() .
 504                         "</p>\n\n<p>" . $this->pageStats() . "</p>\n";
 505         }
 506
 507         /** overloaded by derived classes */
 508         function doAfterContent() { }
 509
 510         function pageTitleLinks() {
 511                 global $wgOut, $wgTitle, $wgUser, $wgContLang, $wgRequest;
 512
 513                 extract( $wgRequest->getValues( 'oldid', 'diff' ) );
 514                 $action = $wgRequest->getText( 'action' );
 515
 516                 $s = $this->printableLink();
 517                 $disclaimer = $this->disclaimerLink(); # may be empty
 518                 if( $disclaimer ) {
 519                         $s .= ' | ' . $disclaimer;
 520                 }
 521
 522                 if ( $wgOut->isArticleRelated() ) {
 523                         if ( $wgTitle->getNamespace() == NS_IMAGE ) {
 524                                 $name = $wgTitle->getDBkey();
 525                                 $image = new Image( $wgTitle );
 526                                 if( $image->exists() ) {
 527                                         $link = htmlspecialchars( $image->getURL() );
 528                                         $style = $this->getInternalLinkAttributes( $link, $name );
 529                                         $s .= " | <a href=\"{$link}\"{$style}>{$name}</a>";
 530                                 }
 531                         }
 532                 }
 533                 if ( 'history' == $action || isset( $diff ) || isset( $oldid ) ) {
 534                         $s .= ' | ' . $this->makeKnownLinkObj( $wgTitle,
 535                                         wfMsg( 'currentrev' ) );
 536                 }
 537
 538                 if ( $wgUser->getNewtalk() ) {
 539                 # do not show "You have new messages" text when we are viewing our
 540                 # own talk page
 541
 542                         if( !$wgTitle->equals( $wgUser->getTalkPage() ) ) {
 543                                 $tl = $this->makeKnownLinkObj( $wgUser->getTalkPage(),
 544                                                 wfMsg('newmessageslink') );
 545                                 $s.= ' | <strong>'. wfMsg( 'newmessages', $tl ) . '</strong>';
 546                                 # disable caching
 547                                 $wgOut->setSquidMaxage(0);
 548                                 $wgOut->enableClientCache(false);
 549                         }
 550                 }
 551
 552                 $undelete = $this->getUndeleteLink();
 553                 if( !empty( $undelete ) ) {
 554                         $s .= ' | '.$undelete;
 555                 }
 556                 return $s;
 557         }
 558
 559         function getUndeleteLink() {
 560                 global $wgUser, $wgTitle, $wgContLang, $action;
 561                 if(     (($wgTitle->getArticleId() == 0) || ($action == "history")) &&
 562                         ($n = $wgTitle->isDeleted() ) )
 563                 {
 564                         if ( $wgUser->isAllowed( 'delete' ) ) {
 565                                 $msg = 'thisisdeleted';
 566                         } else {
 567                                 $msg = 'viewdeleted';
 568                         }
 569                         return wfMsg( $msg,
 570                                 $this->makeKnownLink(
 571                                         $wgContLang->SpecialPage( 'Undelete/' . $wgTitle->getPrefixedDBkey() ),
 572                                         wfMsg( 'restorelink' . ($n == 1 ? '1' : ''), $n ) ) );
 573                 }
 574                 return '';
 575         }
 576
 577         function printableLink() {
 578                 global $wgOut, $wgFeedClasses, $wgRequest;
 579
 580                 $baseurl = $_SERVER['REQUEST_URI'];
 581                 if( strpos( '?', $baseurl ) == false ) {
 582                         $baseurl .= '?';
 583                 } else {
 584                         $baseurl .= '&';
 585                 }
 586                 $baseurl = htmlspecialchars( $baseurl );
 587                 $printurl = $wgRequest->escapeAppendQuery( 'printable=yes' );
 588
 589                 $s = "<a href=\"$printurl\">" . wfMsg( 'printableversion' ) . '</a>';
 590                 if( $wgOut->isSyndicated() ) {
 591                         foreach( $wgFeedClasses as $format => $class ) {
 592                                 $feedurl = $wgRequest->escapeAppendQuery( "feed=$format" );
 593                                 $s .= " | <a href=\"$feedurl\">{$format}</a>";
 594                         }
 595                 }
 596                 return $s;
 597         }
 598
 599         function pageTitle() {
 600                 global $wgOut, $wgTitle, $wgUser;
 601
 602                 $s = '<h1 class="pagetitle">' . htmlspecialchars( $wgOut->getPageTitle() ) . '</h1>';
 603                 return $s;
 604         }
 605
 606         function pageSubtitle() {
 607                 global $wgOut;
 608
 609                 $sub = $wgOut->getSubtitle();
 610                 if ( '' == $sub ) {
 611                         global $wgExtraSubtitle;
 612                         $sub = wfMsg( 'tagline' ) . $wgExtraSubtitle;
 613                 }
 614                 $subpages = $this->subPageSubtitle();
 615                 $sub .= !empty($subpages)?"</p><p class='subpages'>$subpages":'';
 616                 $s = "<p class='subtitle'>{$sub}</p>\n";
 617                 return $s;
 618         }
 619
 620         function subPageSubtitle() {
 621                 global $wgOut,$wgTitle,$wgNamespacesWithSubpages;
 622                 $subpages = '';
 623                 if($wgOut->isArticle() && !empty($wgNamespacesWithSubpages[$wgTitle->getNamespace()])) {
 624                         $ptext=$wgTitle->getPrefixedText();
 625                         if(preg_match('/\//',$ptext)) {
 626                                 $links = explode('/',$ptext);
 627                                 $c = 0;
 628                                 $growinglink = '';
 629                                 foreach($links as $link) {
 630                                         $c++;
 631                                         if ($c<count($links)) {
 632                                                 $growinglink .= $link;
 633                                                 $getlink = $this->makeLink( $growinglink, $link );
 634                                                 if(preg_match('/class="new"/i',$getlink)) { break; } # this is a hack, but it saves time
 635                                                 if ($c>1) {
 636                                                         $subpages .= ' | ';
 637                                                 } else  {
 638                                                         $subpages .= '&lt; ';
 639                                                 }
 640                                                 $subpages .= $getlink;
 641                                                 $growinglink .= '/';
 642                                         }
 643                                 }
 644                         }
 645                 }
 646                 return $subpages;
 647         }
 648
 649         function nameAndLogin() {
 650                 global $wgUser, $wgTitle, $wgLang, $wgContLang, $wgShowIPinHeader;
 651
 652                 $li = $wgContLang->specialPage( 'Userlogin' );
 653                 $lo = $wgContLang->specialPage( 'Userlogout' );
 654
 655                 $s = '';
 656                 if ( $wgUser->isAnon() ) {
 657                         if( $wgShowIPinHeader && isset( $_COOKIE[ini_get('session.name')] ) ) {
 658                                 $n = wfGetIP();
 659
 660                                 $tl = $this->makeKnownLinkObj( $wgUser->getTalkPage(),
 661                                   $wgLang->getNsText( NS_TALK ) );
 662
 663                                 $s .= $n . ' ('.$tl.')';
 664                         } else {
 665                                 $s .= wfMsg('notloggedin');
 666                         }
 667
 668                         $rt = $wgTitle->getPrefixedURL();
 669                         if ( 0 == strcasecmp( urlencode( $lo ), $rt ) ) {
 670                                 $q = '';
 671                         } else { $q = "returnto={$rt}"; }
 672
 673                         $s .= "\n<br />" . $this->makeKnownLinkObj(
 674                                 Title::makeTitle( NS_SPECIAL, 'Userlogin' ),
 675                                 wfMsg( 'login' ), $q );
 676                 } else {
 677                         $n = $wgUser->getName();
 678                         $rt = $wgTitle->getPrefixedURL();
 679                         $tl = $this->makeKnownLinkObj( $wgUser->getTalkPage(),
 680                           $wgLang->getNsText( NS_TALK ) );
 681
 682                         $tl = " ({$tl})";
 683
 684                         $s .= $this->makeKnownLinkObj( $wgUser->getUserPage(),
 685                           $n ) . "{$tl}<br />" .
 686                           $this->makeKnownLinkObj( Title::makeTitle( NS_SPECIAL, 'Userlogout' ), wfMsg( 'logout' ),
 687                           "returnto={$rt}" ) . ' | ' .
 688                           $this->specialLink( 'preferences' );
 689                 }
 690                 $s .= ' | ' . $this->makeKnownLink( wfMsgForContent( 'helppage' ),
 691                   wfMsg( 'help' ) );
 692
 693                 return $s;
 694         }
 695
 696         function getSearchLink() {
 697                 $searchPage =& Title::makeTitle( NS_SPECIAL, 'Search' );
 698                 return $searchPage->getLocalURL();
 699         }
 700
 701         function escapeSearchLink() {
 702                 return htmlspecialchars( $this->getSearchLink() );
 703         }
 704
 705         function searchForm() {
 706                 global $wgRequest;
 707                 $search = $wgRequest->getText( 'search' );
 708
 709                 $s = '<form name="search" class="inline" method="post" action="'
 710                   . $this->escapeSearchLink() . "\">\n"
 711                   . '<input type="text" name="search" size="19" value="'
 712                   . htmlspecialchars(substr($search,0,256)) . "\" />\n"
 713                   . '<input type="submit" name="go" value="' . wfMsg ('go') . '" />&nbsp;'
 714                   . '<input type="submit" name="fulltext" value="' . wfMsg ('search') . "\" />\n</form>";
 715
 716                 return $s;
 717         }
 718
 719         function topLinks() {
 720                 global $wgOut;
 721                 $sep = " |\n";
 722
 723                 $s = $this->mainPageLink() . $sep
 724                   . $this->specialLink( 'recentchanges' );
 725
 726                 if ( $wgOut->isArticleRelated() ) {
 727                         $s .=  $sep . $this->editThisPage()
 728                           . $sep . $this->historyLink();
 729                 }
 730                 # Many people don't like this dropdown box
 731                 #$s .= $sep . $this->specialPagesList();
 732
 733                 /* show links to different language variants */
 734                 global $wgDisableLangConversion, $wgContLang, $wgTitle;
 735                 $variants = $wgContLang->getVariants();
 736                 if( !$wgDisableLangConversion && sizeof( $variants ) > 1 ) {
 737                         foreach( $variants as $code ) {
 738                                 $varname = $wgContLang->getVariantname( $code );
 739                                 if( $varname == 'disable' )
 740                                         continue;
 741                                 $s .= ' | <a href="' . $wgTitle->getLocalUrl( 'variant=' . $code ) . '">' . $varname . '</a>';
 742                         }
 743                 }
 744
 745                 return $s;
 746         }
 747
 748         function bottomLinks() {
 749                 global $wgOut, $wgUser, $wgTitle, $wgUseTrackbacks;
 750                 $sep = " |\n";
 751
 752                 $s = '';
 753                 if ( $wgOut->isArticleRelated() ) {
 754                         $s .= '<strong>' . $this->editThisPage() . '</strong>';
 755                         if ( $wgUser->isLoggedIn() ) {
 756                                 $s .= $sep . $this->watchThisPage();
 757                         }
 758                         $s .= $sep . $this->talkLink()
 759                           . $sep . $this->historyLink()
 760                           . $sep . $this->whatLinksHere()
 761                           . $sep . $this->watchPageLinksLink();
 762
 763                         if ($wgUseTrackbacks)
 764                                 $s .= $sep . $this->trackbackLink();
 765
 766                         if ( $wgTitle->getNamespace() == NS_USER
 767                             || $wgTitle->getNamespace() == NS_USER_TALK )
 768
 769                         {
 770                                 $id=User::idFromName($wgTitle->getText());
 771                                 $ip=User::isIP($wgTitle->getText());
 772
 773                                 if($id || $ip) { # both anons and non-anons have contri list
 774                                         $s .= $sep . $this->userContribsLink();
 775                                 }
 776                                 if( $this->showEmailUser( $id ) ) {
 777                                         $s .= $sep . $this->emailUserLink();
 778                                 }
 779                         }
 780                         if ( $wgTitle->getArticleId() ) {
 781                                 $s .= "\n<br />";
 782                                 if($wgUser->isAllowed('delete')) { $s .= $this->deleteThisPage(); }
 783                                 if($wgUser->isAllowed('protect')) { $s .= $sep . $this->protectThisPage(); }
 784                                 if($wgUser->isAllowed('move')) { $s .= $sep . $this->moveThisPage(); }
 785                         }
 786                         $s .= "<br />\n" . $this->otherLanguages();
 787                 }
 788                 return $s;
 789         }
 790
 791         function pageStats() {
 792                 global $wgOut, $wgLang, $wgArticle, $wgRequest, $wgUser;
 793                 global $wgDisableCounters, $wgMaxCredits, $wgShowCreditsIfMax, $wgTitle, $wgPageShowWatchingUsers;
 794
 795                 extract( $wgRequest->getValues( 'oldid', 'diff' ) );
 796                 if ( ! $wgOut->isArticle() ) { return ''; }
 797                 if ( isset( $oldid ) || isset( $diff ) ) { return ''; }
 798                 if ( 0 == $wgArticle->getID() ) { return ''; }
 799
 800                 $s = '';
 801                 if ( !$wgDisableCounters ) {
 802                         $count = $wgLang->formatNum( $wgArticle->getCount() );
 803                         if ( $count ) {
 804                                 $s = wfMsg( 'viewcount', $count );
 805                         }
 806                 }
 807
 808                 if (isset($wgMaxCredits) && $wgMaxCredits != 0) {
 809                     require_once('Credits.php');
 810                     $s .= ' ' . getCredits($wgArticle, $wgMaxCredits, $wgShowCreditsIfMax);
 811                 } else {
 812                     $s .= $this->lastModified();
 813                 }
 814
 815                 if ($wgPageShowWatchingUsers && $wgUser->getOption( 'shownumberswatching' )) {
 816                         $dbr =& wfGetDB( DB_SLAVE );
 817                         extract( $dbr->tableNames( 'watchlist' ) );
 818                         $sql = "SELECT COUNT(*) AS n FROM $watchlist
 819                                 WHERE wl_title='" . $dbr->strencode($wgTitle->getDBKey()) .
 820                                 "' AND  wl_namespace=" . $wgTitle->getNamespace() ;
 821                         $res = $dbr->query( $sql, 'Skin::pageStats');
 822                         $x = $dbr->fetchObject( $res );
 823                         $s .= ' ' . wfMsg('number_of_watching_users_pageview', $x->n );
 824                 }
 825
 826                 return $s . ' ' .  $this->getCopyright();
 827         }
 828
 829         function getCopyright() {
 830                 global $wgRightsPage, $wgRightsUrl, $wgRightsText, $wgRequest;
 831
 832
 833                 $oldid = $wgRequest->getVal( 'oldid' );
 834                 $diff = $wgRequest->getVal( 'diff' );
 835
 836                 if ( !is_null( $oldid ) && is_null( $diff ) && wfMsgForContent( 'history_copyright' ) !== '-' ) {
 837                         $msg = 'history_copyright';
 838                 } else {
 839                         $msg = 'copyright';
 840                 }
 841
 842                 $out = '';
 843                 if( $wgRightsPage ) {
 844                         $link = $this->makeKnownLink( $wgRightsPage, $wgRightsText );
 845                 } elseif( $wgRightsUrl ) {
 846                         $link = $this->makeExternalLink( $wgRightsUrl, $wgRightsText );
 847                 } else {
 848                         # Give up now
 849                         return $out;
 850                 }
 851                 $out .= wfMsgForContent( $msg, $link );
 852                 return $out;
 853         }
 854
 855         function getCopyrightIcon() {
 856                 global $wgRightsPage, $wgRightsUrl, $wgRightsText, $wgRightsIcon, $wgCopyrightIcon;
 857                 $out = '';
 858                 if ( isset( $wgCopyrightIcon ) && $wgCopyrightIcon ) {
 859                         $out = $wgCopyrightIcon;
 860                 } else if ( $wgRightsIcon ) {
 861                         $icon = htmlspecialchars( $wgRightsIcon );
 862                         if ( $wgRightsUrl ) {
 863                                 $url = htmlspecialchars( $wgRightsUrl );
 864                                 $out .= '<a href="'.$url.'">';
 865                         }
 866                         $text = htmlspecialchars( $wgRightsText );
 867                         $out .= "<img src=\"$icon\" alt='$text' />";
 868                         if ( $wgRightsUrl ) {
 869                                 $out .= '</a>';
 870                         }
 871                 }
 872                 return $out;
 873         }
 874
 875         function getPoweredBy() {
 876                 global $wgStylePath;
 877                 $url = htmlspecialchars( "$wgStylePath/common/images/poweredby_mediawiki_88x31.png" );
 878                 $img = '<a href="http://www.mediawiki.org/"><img src="'.$url.'" alt="MediaWiki" /></a>';
 879                 return $img;
 880         }
 881
 882         function lastModified() {
 883                 global $wgLang, $wgArticle, $wgLoadBalancer;
 884
 885                 $timestamp = $wgArticle->getTimestamp();
 886                 if ( $timestamp ) {
 887                         $d = $wgLang->timeanddate( $timestamp, true );
 888                         $s = ' ' . wfMsg( 'lastmodified', $d );
 889                 } else {
 890                         $s = '';
 891                 }
 892                 if ( $wgLoadBalancer->getLaggedSlaveMode() ) {
 893                         $s .= ' <strong>' . wfMsg( 'laggedslavemode' ) . '</strong>';
 894                 }
 895                 return $s;
 896         }
 897
 898         function logoText( $align = '' ) {
 899                 if ( '' != $align ) { $a = " align='{$align}'"; }
 900                 else { $a = ''; }
 901
 902                 $mp = wfMsg( 'mainpage' );
 903                 $titleObj = Title::newFromText( $mp );
 904                 if ( is_object( $titleObj ) ) {
 905                         $url = $titleObj->escapeLocalURL();
 906                 } else {
 907                         $url = '';
 908                 }
 909
 910                 $logourl = $this->getLogo();
 911                 $s = "<a href='{$url}'><img{$a} src='{$logourl}' alt='[{$mp}]' /></a>";
 912                 return $s;
 913         }
 914
 915         /**
 916          * show a drop-down box of special pages
 917          * @TODO crash bug913. Need to be rewrote completly.
 918          */
 919         function specialPagesList() {
 920                 global $wgUser, $wgOut, $wgContLang, $wgServer, $wgRedirectScript, $wgAvailableRights;
 921                 require_once('SpecialPage.php');
 922                 $a = array();
 923                 $pages = SpecialPage::getPages();
 924
 925                 // special pages without access restriction
 926                 foreach ( $pages[''] as $name => $page ) {
 927                         $a[$name] = $page->getDescription();
 928                 }
 929
 930                 // Other special pages that are restricted.
 931                 // Copied from SpecialSpecialpages.php
 932                 foreach($wgAvailableRights as $right) {
 933                         if( $wgUser->isAllowed($right) ) {
 934                                 /** Add all pages for this right */
 935                                 if(isset($pages[$right])) {
 936                                         foreach($pages[$right] as $name => $page) {
 937                                         $a[$name] = $page->getDescription();
 938                                         }
 939                                 }
 940                         }
 941                 }
 942
 943                 $go = wfMsg( 'go' );
 944                 $sp = wfMsg( 'specialpages' );
 945                 $spp = $wgContLang->specialPage( 'Specialpages' );
 946
 947                 $s = '<form id="specialpages" method="get" class="inline" ' .
 948                   'action="' . htmlspecialchars( "{$wgServer}{$wgRedirectScript}" ) . "\">\n";
 949                 $s .= "<select name=\"wpDropdown\">\n";
 950                 $s .= "<option value=\"{$spp}\">{$sp}</option>\n";
 951
 952
 953                 foreach ( $a as $name => $desc ) {
 954                         $p = $wgContLang->specialPage( $name );
 955                         $s .= "<option value=\"{$p}\">{$desc}</option>\n";
 956                 }
 957                 $s .= "</select>\n";
 958                 $s .= "<input type='submit' value=\"{$go}\" name='redirect' />\n";
 959                 $s .= "</form>\n";
 960                 return $s;
 961         }
 962
 963         function mainPageLink() {
 964                 $mp = wfMsgForContent( 'mainpage' );
 965                 $mptxt = wfMsg( 'mainpage');
 966                 $s = $this->makeKnownLink( $mp, $mptxt );
 967                 return $s;
 968         }
 969
 970         function copyrightLink() {
 971                 $s = $this->makeKnownLink( wfMsgForContent( 'copyrightpage' ),
 972                   wfMsg( 'copyrightpagename' ) );
 973                 return $s;
 974         }
 975
 976         function aboutLink() {
 977                 $s = $this->makeKnownLink( wfMsgForContent( 'aboutpage' ),
 978                   wfMsg( 'aboutsite' ) );
 979                 return $s;
 980         }
 981
 982
 983         function disclaimerLink() {
 984                 $disclaimers = wfMsg( 'disclaimers' );
 985                 if ($disclaimers == '-') {
 986                         return '';
 987                 } else {
 988                         return $this->makeKnownLink( wfMsgForContent( 'disclaimerpage' ),
 989                                                      $disclaimers );
 990                 }
 991         }
 992
 993         function editThisPage() {
 994                 global $wgOut, $wgTitle, $wgRequest;
 995
 996                 $oldid = $wgRequest->getVal( 'oldid' );
 997                 $diff = $wgRequest->getVal( 'diff' );
 998                 $redirect = $wgRequest->getVal( 'redirect' );
 999
1000                 if ( ! $wgOut->isArticleRelated() ) {
1001                         $s = wfMsg( 'protectedpage' );
1002                 } else {
1003                         if ( $wgTitle->userCanEdit() ) {
1004                                 $t = wfMsg( 'editthispage' );
1005                         } else {
1006                                 $t = wfMsg( 'viewsource' );
1007                         }
1008                         $oid = $red = '';
1009
1010                         if ( !is_null( $redirect ) ) { $red = "&redirect={$redirect}"; }
1011                         if ( $oldid && ! isset( $diff ) ) {
1012                                 $oid = '&oldid='.$oldid;
1013                         }
1014                         $s = $this->makeKnownLinkObj( $wgTitle, $t, "action=edit{$oid}{$red}" );
1015                 }
1016                 return $s;
1017         }
1018
1019         function deleteThisPage() {
1020                 global $wgUser, $wgOut, $wgTitle, $wgRequest;
1021
1022                 $diff = $wgRequest->getVal( 'diff' );
1023                 if ( $wgTitle->getArticleId() && ( ! $diff ) && $wgUser->isAllowed('delete') ) {
1024                         $t = wfMsg( 'deletethispage' );
1025
1026                         $s = $this->makeKnownLinkObj( $wgTitle, $t, 'action=delete' );
1027                 } else {
1028                         $s = '';
1029                 }
1030                 return $s;
1031         }
1032
1033         function protectThisPage() {
1034                 global $wgUser, $wgOut, $wgTitle, $wgRequest;
1035
1036                 $diff = $wgRequest->getVal( 'diff' );
1037                 if ( $wgTitle->getArticleId() && ( ! $diff ) && $wgUser->isAllowed('protect') ) {
1038                         if ( $wgTitle->isProtected() ) {
1039                                 $t = wfMsg( 'unprotectthispage' );
1040                                 $q = 'action=unprotect';
1041                         } else {
1042                                 $t = wfMsg( 'protectthispage' );
1043                                 $q = 'action=protect';
1044                         }
1045                         $s = $this->makeKnownLinkObj( $wgTitle, $t, $q );
1046                 } else {
1047                         $s = '';
1048                 }
1049                 return $s;
1050         }
1051
1052         function watchThisPage() {
1053                 global $wgUser, $wgOut, $wgTitle;
1054
1055                 if ( $wgOut->isArticleRelated() ) {
1056                         if ( $wgTitle->userIsWatching() ) {
1057                                 $t = wfMsg( 'unwatchthispage' );
1058                                 $q = 'action=unwatch';
1059                         } else {
1060                                 $t = wfMsg( 'watchthispage' );
1061                                 $q = 'action=watch';
1062                         }
1063                         $s = $this->makeKnownLinkObj( $wgTitle, $t, $q );
1064                 } else {
1065                         $s = wfMsg( 'notanarticle' );
1066                 }
1067                 return $s;
1068         }
1069
1070         function moveThisPage() {
1071                 global $wgTitle;
1072
1073                 if ( $wgTitle->userCanMove() ) {
1074                         return $this->makeKnownLinkObj( Title::makeTitle( NS_SPECIAL, 'Movepage' ),
1075                           wfMsg( 'movethispage' ), 'target=' . $wgTitle->getPrefixedURL() );
1076                 } else {
1077                         // no message if page is protected - would be redundant
1078                         return '';
1079                 }
1080         }
1081
1082         function historyLink() {
1083                 global $wgTitle;
1084
1085                 return $this->makeKnownLinkObj( $wgTitle,
1086                   wfMsg( 'history' ), 'action=history' );
1087         }
1088
1089         function whatLinksHere() {
1090                 global $wgTitle;
1091
1092                 return $this->makeKnownLinkObj( Title::makeTitle( NS_SPECIAL, 'Whatlinkshere' ),
1093                   wfMsg( 'whatlinkshere' ), 'target=' . $wgTitle->getPrefixedURL() );
1094         }
1095
1096         function userContribsLink() {
1097                 global $wgTitle;
1098
1099                 return $this->makeKnownLinkObj( Title::makeTitle( NS_SPECIAL, 'Contributions' ),
1100                   wfMsg( 'contributions' ), 'target=' . $wgTitle->getPartialURL() );
1101         }
1102
1103         function showEmailUser( $id ) {
1104                 global $wgEnableEmail, $wgEnableUserEmail, $wgUser;
1105                 return $wgEnableEmail &&
1106                        $wgEnableUserEmail &&
1107                        $wgUser->isLoggedIn() && # show only to signed in users
1108                        0 != $id; # we can only email to non-anons ..
1109 #                      '' != $id->getEmail() && # who must have an email address stored ..
1110 #                      0 != $id->getEmailauthenticationtimestamp() && # .. which is authenticated
1111 #                      1 != $wgUser->getOption('disablemail'); # and not disabled
1112         }
1113
1114         function emailUserLink() {
1115                 global $wgTitle;
1116
1117                 return $this->makeKnownLinkObj( Title::makeTitle( NS_SPECIAL, 'Emailuser' ),
1118                   wfMsg( 'emailuser' ), 'target=' . $wgTitle->getPartialURL() );
1119         }
1120
1121         function watchPageLinksLink() {
1122                 global $wgOut, $wgTitle;
1123
1124                 if ( ! $wgOut->isArticleRelated() ) {
1125                         return '(' . wfMsg( 'notanarticle' ) . ')';
1126                 } else {
1127                         return $this->makeKnownLinkObj( Title::makeTitle( NS_SPECIAL,
1128                           'Recentchangeslinked' ), wfMsg( 'recentchangeslinked' ),
1129                           'target=' . $wgTitle->getPrefixedURL() );
1130                 }
1131         }
1132
1133         function trackbackLink() {
1134                 global $wgTitle;
1135
1136                 return "<a href=\"" . $wgTitle->trackbackURL() . "\">"
1137                         . wfMsg('trackbacklink') . "</a>";
1138         }
1139
1140         function otherLanguages() {
1141                 global $wgOut, $wgContLang, $wgTitle, $wgHideInterlanguageLinks;
1142
1143                 if ( $wgHideInterlanguageLinks ) {
1144                         return '';
1145                 }
1146
1147                 $a = $wgOut->getLanguageLinks();
1148                 if ( 0 == count( $a ) ) {
1149                         return '';
1150                 }
1151
1152                 $s = wfMsg( 'otherlanguages' ) . ': ';
1153                 $first = true;
1154                 if($wgContLang->isRTL()) $s .= '<span dir="LTR">';
1155                 foreach( $a as $l ) {
1156                         if ( ! $first ) { $s .= ' | '; }
1157                         $first = false;
1158
1159                         $nt = Title::newFromText( $l );
1160                         $url = $nt->escapeFullURL();
1161                         $text = $wgContLang->getLanguageName( $nt->getInterwiki() );
1162
1163                         if ( '' == $text ) { $text = $l; }
1164                         $style = $this->getExternalLinkAttributes( $l, $text );
1165                         $s .= "<a href=\"{$url}\"{$style}>{$text}</a>";
1166                 }
1167                 if($wgContLang->isRTL()) $s .= '</span>';
1168                 return $s;
1169         }
1170
1171         function bugReportsLink() {
1172                 $s = $this->makeKnownLink( wfMsgForContent( 'bugreportspage' ),
1173                   wfMsg( 'bugreports' ) );
1174                 return $s;
1175         }
1176
1177         function dateLink() {
1178                 global $wgLinkCache;
1179                 $t1 = Title::newFromText( gmdate( 'F j' ) );
1180                 $t2 = Title::newFromText( gmdate( 'Y' ) );
1181
1182                 $wgLinkCache->suspend();
1183                 $id = $t1->getArticleID();
1184                 $wgLinkCache->resume();
1185
1186                 if ( 0 == $id ) {
1187                         $s = $this->makeBrokenLink( $t1->getText() );
1188                 } else {
1189                         $s = $this->makeKnownLink( $t1->getText() );
1190                 }
1191                 $s .= ', ';
1192
1193                 $wgLinkCache->suspend();
1194                 $id = $t2->getArticleID();
1195                 $wgLinkCache->resume();
1196
1197                 if ( 0 == $id ) {
1198                         $s .= $this->makeBrokenLink( $t2->getText() );
1199                 } else {
1200                         $s .= $this->makeKnownLink( $t2->getText() );
1201                 }
1202                 return $s;
1203         }
1204
1205         function talkLink() {
1206                 global $wgTitle, $wgLinkCache;
1207
1208                 if ( NS_SPECIAL == $wgTitle->getNamespace() ) {
1209                         # No discussion links for special pages
1210                         return '';
1211                 }
1212
1213                 if( $wgTitle->isTalkPage() ) {
1214                         $link = $wgTitle->getSubjectPage();
1215                         switch( $link->getNamespace() ) {
1216                         case NS_MAIN:
1217                                 $text = wfMsg('articlepage');
1218                                 break;
1219                         case NS_USER:
1220                                 $text = wfMsg('userpage');
1221                                 break;
1222                         case NS_PROJECT:
1223                                 $text = wfMsg('wikipediapage');
1224                                 break;
1225                         case NS_IMAGE:
1226                                 $text = wfMsg('imagepage');
1227                                 break;
1228                         default:
1229                                 $text= wfMsg('articlepage');
1230                         }
1231                 } else {
1232                         $link = $wgTitle->getTalkPage();
1233                         $text = wfMsg( 'talkpage' );
1234                 }
1235
1236                 $wgLinkCache->suspend();
1237                 $s = $this->makeLinkObj( $link, $text );
1238                 $wgLinkCache->resume();
1239
1240                 return $s;
1241         }
1242
1243         function commentLink() {
1244                 global $wgContLang, $wgTitle, $wgLinkCache;
1245
1246                 if ( $wgTitle->getNamespace() == NS_SPECIAL ) {
1247                         return '';
1248                 }
1249                 return $this->makeKnownLinkObj( $wgTitle->getTalkPage(),
1250                         wfMsg( 'postcomment' ), 'action=edit&section=new' );
1251         }
1252
1253         /* these are used extensively in SkinPHPTal, but also some other places */
1254         /*static*/ function makeSpecialUrl( $name, $urlaction='' ) {
1255                 $title = Title::makeTitle( NS_SPECIAL, $name );
1256                 return $title->getLocalURL( $urlaction );
1257         }
1258
1259         /*static*/ function makeI18nUrl ( $name, $urlaction='' ) {
1260                 $title = Title::newFromText( wfMsgForContent($name) );
1261                 $this->checkTitle($title, $name);
1262                 return $title->getLocalURL( $urlaction );
1263         }
1264
1265         /*static*/ function makeUrl ( $name, $urlaction='' ) {
1266                 $title = Title::newFromText( $name );
1267                 $this->checkTitle($title, $name);
1268                 return $title->getLocalURL( $urlaction );
1269         }
1270
1271         # If url string starts with http, consider as external URL, else
1272         # internal
1273         /*static*/ function makeInternalOrExternalUrl( $name ) {
1274                 global $wgUrlProtocols;
1275                 if ( preg_match( '/^(?:' . $wgUrlProtocols . ')/', $name ) ) {
1276                         return $name;
1277                 } else {
1278                         return $this->makeUrl( $name );
1279                 }
1280         }
1281
1282         # this can be passed the NS number as defined in Language.php
1283         /*static*/ function makeNSUrl( $name, $urlaction='', $namespace=NS_MAIN ) {
1284                 $title = Title::makeTitleSafe( $namespace, $name );
1285                 $this->checkTitle($title, $name);
1286                 return $title->getLocalURL( $urlaction );
1287         }
1288
1289         /* these return an array with the 'href' and boolean 'exists' */
1290         /*static*/ function makeUrlDetails ( $name, $urlaction='' ) {
1291                 $title = Title::newFromText( $name );
1292                 $this->checkTitle($title, $name);
1293                 return array(
1294                         'href' => $title->getLocalURL( $urlaction ),
1295                         'exists' => $title->getArticleID() != 0?true:false
1296                 );
1297         }
1298
1299         /**
1300          * Make URL details where the article exists (or at least it's convenient to think so)
1301          */
1302         function makeKnownUrlDetails( $name, $urlaction='' ) {
1303                 $title = Title::newFromText( $name );
1304                 $this->checkTitle($title, $name);
1305                 return array(
1306                         'href' => $title->getLocalURL( $urlaction ),
1307                         'exists' => true
1308                 );
1309         }
1310
1311         # make sure we have some title to operate on
1312         /*static*/ function checkTitle ( &$title, &$name ) {
1313                 if(!is_object($title)) {
1314                         $title = Title::newFromText( $name );
1315                         if(!is_object($title)) {
1316                                 $title = Title::newFromText( '--error: link target missing--' );
1317                         }
1318                 }
1319         }
1320
1321         /**
1322          * Build an array that represents the sidebar(s), the navigation bar among them
1323          *
1324          * @return array
1325          * @access private
1326          */
1327         function buildSidebar() {
1328                 global $wgTitle, $action;
1329
1330                 $fname = 'SkinTemplate::buildSidebar';
1331                 $pageurl = $wgTitle->getLocalURL();
1332                 wfProfileIn( $fname );
1333
1334                 $bar = array();
1335                 $lines = explode( "\n", wfMsgForContent( 'sidebar' ) );
1336                 foreach ($lines as $line) {
1337                         if (strpos($line, '*') !== 0)
1338                                 continue;
1339                         if (strpos($line, '**') !== 0) {
1340                                 $line = trim($line, '* ');
1341                                 $heading = $line;
1342                         } else {
1343                                 if (strpos($line, '|') !== false) { // sanity check
1344                                         $line = explode( '|' , trim($line, '* '), 2 );
1345                                         $link = wfMsgForContent( $line[0] );
1346                                         if ($link == '-')
1347                                                 continue;
1348                                         if (wfEmptyMsg($line[1], $text = wfMsg($line[1])))
1349                                                 $text = $line[1];
1350                                         if (wfEmptyMsg($line[0], $link))
1351                                                 $link = $line[0];
1352                                         $href = $this->makeInternalOrExternalUrl( $link );
1353                                         $bar[$heading][] = array(
1354                                                 'text' => $text,
1355                                                 'href' => $href,
1356                                                 'id' => 'n-' . strtr($line[1], ' ', '-'),
1357                                                 'active' => $pageurl == $href
1358                                         );
1359                                 } else { continue; }
1360                         }
1361                 }
1362
1363                 wfProfileOut( $fname );
1364                 return $bar;
1365         }
1366 }
1367
1368 }
1369 ?>