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 require_once( 'Linker.php' );
  13 require_once( 'Image.php' );
  14
  15 # Get a list of all skins available in /skins/
  16 # Build using the regular expression '^(.*).php$'
  17 # Array keys are all lower case, array value keep the case used by filename
  18 #
  19
  20 $skinDir = dir($IP.'/skins');
  21
  22 # while code from www.php.net
  23 while (false !== ($file = $skinDir->read())) {
  24         // Skip non-PHP files, hidden files, and '.dep' includes
  25         if(preg_match('/^([^.]*)\.php$/',$file, $matches)) {
  26                 $aSkin = $matches[1];
  27                 $wgValidSkinNames[strtolower($aSkin)] = $aSkin;
  28         }
  29 }
  30 $skinDir->close();
  31 unset($matches);
  32
  33 /**
  34  * The main skin class that provide methods and properties for all other skins.
  35  * This base class is also the "Standard" skin.
  36  * @package MediaWiki
  37  */
  38 class Skin extends Linker {
  39         /**#@+
  40          * @access private
  41          */
  42         var $lastdate, $lastline;
  43         var $rc_cache ; # Cache for Enhanced Recent Changes
  44         var $rcCacheIndex ; # Recent Changes Cache Counter for visibility toggle
  45         var $rcMoveIndex;
  46         /**#@-*/
  47
  48         /** Constructor, call parent constructor */
  49         function Skin() { parent::Linker(); }
  50
  51         /**
  52          * Fetch the set of available skins.
  53          * @return array of strings
  54          * @static
  55          */
  56         function getSkinNames() {
  57                 global $wgValidSkinNames;
  58                 return $wgValidSkinNames;
  59         }
  60
  61         /**
  62          * Normalize a skin preference value to a form that can be loaded.
  63          * If a skin can't be found, it will fall back to the configured
  64          * default (or the old 'Classic' skin if that's broken).
  65          * @param string $key
  66          * @return string
  67          * @static
  68          */
  69         function normalizeKey( $key ) {
  70                 global $wgDefaultSkin;
  71                 $skinNames = Skin::getSkinNames();
  72
  73                 if( $key == '' ) {
  74                         // Don't return the default immediately;
  75                         // in a misconfiguration we need to fall back.
  76                         $key = $wgDefaultSkin;
  77                 }
  78
  79                 if( isset( $skinNames[$key] ) ) {
  80                         return $key;
  81                 }
  82
  83                 // Older versions of the software used a numeric setting
  84                 // in the user preferences.
  85                 $fallback = array(
  86                         0 => $wgDefaultSkin,
  87                         1 => 'nostalgia',
  88                         2 => 'cologneblue' );
  89
  90                 if( isset( $fallback[$key] ) ){
  91                         $key = $fallback[$key];
  92                 }
  93
  94                 if( isset( $skinNames[$key] ) ) {
  95                         return $key;
  96                 } else {
  97                         // The old built-in skin
  98                         return 'standard';
  99                 }
 100         }
 101
 102         /**
 103          * Factory method for loading a skin of a given type
 104          * @param string $key 'monobook', 'standard', etc
 105          * @return Skin
 106          * @static
 107          */
 108         function &newFromKey( $key ) {
 109                 $key = Skin::normalizeKey( $key );
 110
 111                 $skinNames = Skin::getSkinNames();
 112                 $skinName = $skinNames[$key];
 113
 114                 global $IP;
 115
 116                 # Grab the skin class and initialise it.
 117                 wfSuppressWarnings();
 118                 // Preload base classes to work around APC/PHP5 bug
 119                 include_once( $IP.'/skins/'.$skinName.'.deps.php' );
 120                 wfRestoreWarnings();
 121                 require_once( $IP.'/skins/'.$skinName.'.php' );
 122
 123                 # Check if we got if not failback to default skin
 124                 $className = 'Skin'.$skinName;
 125                 if( !class_exists( $className ) ) {
 126                         # DO NOT die if the class isn't found. This breaks maintenance
 127                         # scripts and can cause a user account to be unrecoverable
 128                         # except by SQL manipulation if a previously valid skin name
 129                         # is no longer valid.
 130                         wfDebug( "Skin class does not exist: $className\n" );
 131                         $className = 'SkinStandard';
 132                         require_once( $IP.'/skins/Standard.php' );
 133                 }
 134                 $skin =& new $className;
 135                 return $skin;
 136         }
 137
 138         /** @return string path to the skin stylesheet */
 139         function getStylesheet() {
 140                 return 'common/wikistandard.css?1';
 141         }
 142
 143         /** @return string skin name */
 144         function getSkinName() {
 145                 return 'standard';
 146         }
 147
 148         function qbSetting() {
 149                 global $wgOut, $wgUser;
 150
 151                 if ( $wgOut->isQuickbarSuppressed() ) { return 0; }
 152                 $q = $wgUser->getOption( 'quickbar' );
 153                 if ( '' == $q ) { $q = 0; }
 154                 return $q;
 155         }
 156
 157         function initPage( &$out ) {
 158                 global $wgFavicon;
 159
 160                 $fname = 'Skin::initPage';
 161                 wfProfileIn( $fname );
 162
 163                 if( false !== $wgFavicon ) {
 164                         $out->addLink( array( 'rel' => 'shortcut icon', 'href' => $wgFavicon ) );
 165                 }
 166
 167                 $this->addMetadataLinks($out);
 168
 169                 $this->mRevisionId = $out->mRevisionId;
 170
 171                 $this->preloadExistence();
 172
 173                 wfProfileOut( $fname );
 174         }
 175
 176         /**
 177          * Preload the existence of three commonly-requested pages in a single query
 178          */
 179         function preloadExistence() {
 180                 global $wgUser, $wgTitle;
 181
 182                 if ( $wgTitle->isTalkPage() ) {
 183                         $otherTab = $wgTitle->getSubjectPage();
 184                 } else {
 185                         $otherTab = $wgTitle->getTalkPage();
 186                 }
 187                 $lb = new LinkBatch( array(
 188                         $wgUser->getUserPage(),
 189                         $wgUser->getTalkPage(),
 190                         $otherTab
 191                 ));
 192                 $lb->execute();
 193         }
 194
 195         function addMetadataLinks( &$out ) {
 196                 global $wgTitle, $wgEnableDublinCoreRdf, $wgEnableCreativeCommonsRdf;
 197                 global $wgRightsPage, $wgRightsUrl;
 198
 199                 if( $out->isArticleRelated() ) {
 200                         # note: buggy CC software only reads first "meta" link
 201                         if( $wgEnableCreativeCommonsRdf ) {
 202                                 $out->addMetadataLink( array(
 203                                         'title' => 'Creative Commons',
 204                                         'type' => 'application/rdf+xml',
 205                                         'href' => $wgTitle->getLocalURL( 'action=creativecommons') ) );
 206                         }
 207                         if( $wgEnableDublinCoreRdf ) {
 208                                 $out->addMetadataLink( array(
 209                                         'title' => 'Dublin Core',
 210                                         'type' => 'application/rdf+xml',
 211                                         'href' => $wgTitle->getLocalURL( 'action=dublincore' ) ) );
 212                         }
 213                 }
 214                 $copyright = '';
 215                 if( $wgRightsPage ) {
 216                         $copy = Title::newFromText( $wgRightsPage );
 217                         if( $copy ) {
 218                                 $copyright = $copy->getLocalURL();
 219                         }
 220                 }
 221                 if( !$copyright && $wgRightsUrl ) {
 222                         $copyright = $wgRightsUrl;
 223                 }
 224                 if( $copyright ) {
 225                         $out->addLink( array(
 226                                 'rel' => 'copyright',
 227                                 'href' => $copyright ) );
 228                 }
 229         }
 230
 231         function outputPage( &$out ) {
 232                 global $wgDebugComments;
 233
 234                 wfProfileIn( 'Skin::outputPage' );
 235                 $this->initPage( $out );
 236
 237                 $out->out( $out->headElement() );
 238
 239                 $out->out( "\n<body" );
 240                 $ops = $this->getBodyOptions();
 241                 foreach ( $ops as $name => $val ) {
 242                         $out->out( " $name='$val'" );
 243                 }
 244                 $out->out( ">\n" );
 245                 if ( $wgDebugComments ) {
 246                         $out->out( "<!-- Wiki debugging output:\n" .
 247                           $out->mDebugtext . "-->\n" );
 248                 }
 249
 250                 $out->out( $this->beforeContent() );
 251
 252                 $out->out( $out->mBodytext . "\n" );
 253
 254                 $out->out( $this->afterContent() );
 255
 256                 $out->out( $out->reportTime() );
 257
 258                 $out->out( "\n</body></html>" );
 259         }
 260
 261         function getHeadScripts() {
 262                 global $wgStylePath, $wgUser, $wgAllowUserJs, $wgJsMimeType;
 263                 $r = "<script type=\"{$wgJsMimeType}\" src=\"{$wgStylePath}/common/wikibits.js\"></script>\n";
 264                 if( $wgAllowUserJs && $wgUser->isLoggedIn() ) {
 265                         $userpage = $wgUser->getUserPage();
 266                         $userjs = htmlspecialchars( $this->makeUrl(
 267                                 $userpage->getPrefixedText().'/'.$this->getSkinName().'.js',
 268                                 'action=raw&ctype='.$wgJsMimeType));
 269                         $r .= '<script type="'.$wgJsMimeType.'" src="'.$userjs."\"></script>\n";
 270                 }
 271                 return $r;
 272         }
 273
 274         /**
 275          * To make it harder for someone to slip a user a fake
 276          * user-JavaScript or user-CSS preview, a random token
 277          * is associated with the login session. If it's not
 278          * passed back with the preview request, we won't render
 279          * the code.
 280          *
 281          * @param string $action
 282          * @return bool
 283          * @access private
 284          */
 285         function userCanPreview( $action ) {
 286                 global $wgTitle, $wgRequest, $wgUser;
 287
 288                 if( $action != 'submit' )
 289                         return false;
 290                 if( !$wgRequest->wasPosted() )
 291                         return false;
 292                 if( !$wgTitle->userCanEditCssJsSubpage() )
 293                         return false;
 294                 return $wgUser->matchEditToken(
 295                         $wgRequest->getVal( 'wpEditToken' ) );
 296         }
 297
 298         # get the user/site-specific stylesheet, SkinTemplate loads via RawPage.php (settings are cached that way)
 299         function getUserStylesheet() {
 300                 global $wgStylePath, $wgRequest, $wgContLang, $wgSquidMaxage;
 301                 $sheet = $this->getStylesheet();
 302                 $action = $wgRequest->getText('action');
 303                 $s = "@import \"$wgStylePath/$sheet\";\n";
 304                 if($wgContLang->isRTL()) $s .= "@import \"$wgStylePath/common/common_rtl.css\";\n";
 305
 306                 $query = "action=raw&ctype=text/css&smaxage=$wgSquidMaxage";
 307                 $s .= '@import "' . $this->makeNSUrl( 'Common.css', $query, NS_MEDIAWIKI ) . "\";\n" .
 308                         '@import "'.$this->makeNSUrl( ucfirst( $this->getSkinName() . '.css' ), $query, NS_MEDIAWIKI ) . "\";\n";
 309
 310                 $s .= $this->doGetUserStyles();
 311                 return $s."\n";
 312         }
 313
 314         /**
 315          * placeholder, returns generated js in monobook
 316          */
 317         function getUserJs() { return; }
 318
 319         /**
 320          * Return html code that include User stylesheets
 321          */
 322         function getUserStyles() {
 323                 $s = "<style type='text/css'>\n";
 324                 $s .= "/*/*/ /*<![CDATA[*/\n"; # <-- Hide the styles from Netscape 4 without hiding them from IE/Mac
 325                 $s .= $this->getUserStylesheet();
 326                 $s .= "/*]]>*/ /* */\n";
 327                 $s .= "</style>\n";
 328                 return $s;
 329         }
 330
 331         /**
 332          * Some styles that are set by user through the user settings interface.
 333          */
 334         function doGetUserStyles() {
 335                 global $wgUser, $wgUser, $wgRequest, $wgTitle, $wgAllowUserCss;
 336
 337                 $s = '';
 338
 339                 if( $wgAllowUserCss && $wgUser->isLoggedIn() ) { # logged in
 340                         if($wgTitle->isCssSubpage() && $this->userCanPreview( $action ) ) {
 341                                 $s .= $wgRequest->getText('wpTextbox1');
 342                         } else {
 343                                 $userpage = $wgUser->getUserPage();
 344                                 $s.= '@import "'.$this->makeUrl(
 345                                         $userpage->getPrefixedText().'/'.$this->getSkinName().'.css',
 346                                         'action=raw&ctype=text/css').'";'."\n";
 347                         }
 348                 }
 349
 350                 return $s . $this->reallyDoGetUserStyles();
 351         }
 352
 353         function reallyDoGetUserStyles() {
 354                 global $wgUser;
 355                 $s = '';
 356                 if (($undopt = $wgUser->getOption("underline")) != 2) {
 357                         $underline = $undopt ? 'underline' : 'none';
 358                         $s .= "a { text-decoration: $underline; }\n";
 359                 }
 360                 if( $wgUser->getOption( 'highlightbroken' ) ) {
 361                         $s .= "a.new, #quickbar a.new { color: #CC2200; }\n";
 362                 } else {
 363                         $s .= <<<END
 364 a.new, #quickbar a.new,
 365 a.stub, #quickbar a.stub {
 366         color: inherit;
 367         text-decoration: inherit;
 368 }
 369 a.new:after, #quickbar a.new:after {
 370         content: "?";
 371         color: #CC2200;
 372         text-decoration: $underline;
 373 }
 374 a.stub:after, #quickbar a.stub:after {
 375         content: "!";
 376         color: #772233;
 377         text-decoration: $underline;
 378 }
 379 END;
 380                 }
 381                 if( $wgUser->getOption( 'justify' ) ) {
 382                         $s .= "#article, #bodyContent { text-align: justify; }\n";
 383                 }
 384                 if( !$wgUser->getOption( 'showtoc' ) ) {
 385                         $s .= "#toc { display: none; }\n";
 386                 }
 387                 if( !$wgUser->getOption( 'editsection' ) ) {
 388                         $s .= ".editsection { display: none; }\n";
 389                 }
 390                 return $s;
 391         }
 392
 393         function getBodyOptions() {
 394                 global $wgUser, $wgTitle, $wgOut, $wgRequest;
 395
 396                 extract( $wgRequest->getValues( 'oldid', 'redirect', 'diff' ) );
 397
 398                 if ( 0 != $wgTitle->getNamespace() ) {
 399                         $a = array( 'bgcolor' => '#ffffec' );
 400                 }
 401                 else $a = array( 'bgcolor' => '#FFFFFF' );
 402                 if($wgOut->isArticle() && $wgUser->getOption('editondblclick') &&
 403                   $wgTitle->userCanEdit() ) {
 404                         $t = wfMsg( 'editthispage' );
 405                         $s = $wgTitle->getFullURL( $this->editUrlOptions() );
 406                         $s = 'document.location = "' .wfEscapeJSString( $s ) .'";';
 407                         $a += array ('ondblclick' => $s);
 408
 409                 }
 410                 $a['onload'] = $wgOut->getOnloadHandler();
 411                 if( $wgUser->getOption( 'editsectiononrightclick' ) ) {
 412                         if( $a['onload'] != '' ) {
 413                                 $a['onload'] .= ';';
 414                         }
 415                         $a['onload'] .= 'setupRightClickEdit()';
 416                 }
 417                 return $a;
 418         }
 419
 420         /**
 421          * URL to the logo
 422          */
 423         function getLogo() {
 424                 global $wgLogo;
 425                 return $wgLogo;
 426         }
 427
 428         /**
 429          * This will be called immediately after the <body> tag.  Split into
 430          * two functions to make it easier to subclass.
 431          */
 432         function beforeContent() {
 433                 return $this->doBeforeContent();
 434         }
 435
 436         function doBeforeContent() {
 437                 global $wgContLang;
 438                 $fname = 'Skin::doBeforeContent';
 439                 wfProfileIn( $fname );
 440
 441                 $s = '';
 442                 $qb = $this->qbSetting();
 443
 444                 if( $langlinks = $this->otherLanguages() ) {
 445                         $rows = 2;
 446                         $borderhack = '';
 447                 } else {
 448                         $rows = 1;
 449                         $langlinks = false;
 450                         $borderhack = 'class="top"';
 451                 }
 452
 453                 $s .= "\n<div id='content'>\n<div id='topbar'>\n" .
 454                   "<table border='0' cellspacing='0' width='98%'>\n<tr>\n";
 455
 456                 $shove = ($qb != 0);
 457                 $left = ($qb == 1 || $qb == 3);
 458                 if($wgContLang->isRTL()) $left = !$left;
 459
 460                 if ( !$shove ) {
 461                         $s .= "<td class='top' align='left' valign='top' rowspan='{$rows}'>\n" .
 462                           $this->logoText() . '</td>';
 463                 } elseif( $left ) {
 464                         $s .= $this->getQuickbarCompensator( $rows );
 465                 }
 466                 $l = $wgContLang->isRTL() ? 'right' : 'left';
 467                 $s .= "<td {$borderhack} align='$l' valign='top'>\n";
 468
 469                 $s .= $this->topLinks() ;
 470                 $s .= "<p class='subtitle'>" . $this->pageTitleLinks() . "</p>\n";
 471
 472                 $r = $wgContLang->isRTL() ? "left" : "right";
 473                 $s .= "</td>\n<td {$borderhack} valign='top' align='$r' nowrap='nowrap'>";
 474                 $s .= $this->nameAndLogin();
 475                 $s .= "\n<br />" . $this->searchForm() . "</td>";
 476
 477                 if ( $langlinks ) {
 478                         $s .= "</tr>\n<tr>\n<td class='top' colspan=\"2\">$langlinks</td>\n";
 479                 }
 480
 481                 if ( $shove && !$left ) { # Right
 482                         $s .= $this->getQuickbarCompensator( $rows );
 483                 }
 484                 $s .= "</tr>\n</table>\n</div>\n";
 485                 $s .= "\n<div id='article'>\n";
 486
 487                 $notice = wfGetSiteNotice();
 488                 if( $notice ) {
 489                         $s .= "\n<div id='siteNotice'>$notice</div>\n";
 490                 }
 491                 $s .= $this->pageTitle();
 492                 $s .= $this->pageSubtitle() ;
 493                 $s .= $this->getCategories();
 494                 wfProfileOut( $fname );
 495                 return $s;
 496         }
 497
 498
 499         function getCategoryLinks () {
 500                 global $wgOut, $wgTitle, $wgUseCategoryBrowser;
 501                 global $wgContLang;
 502
 503                 if( count( $wgOut->mCategoryLinks ) == 0 ) return '';
 504
 505                 // Use Unicode bidi embedding override characters,
 506                 // to make sure links don't smash each other up in ugly ways.
 507                 $dir = $wgContLang->isRTL() ? 'rtl' : 'ltr';
 508                 $embed = "<span dir='$dir'>";
 509                 $pop = '</span>';
 510                 $t = $embed . implode ( "$pop | $embed" , $wgOut->mCategoryLinks ) . $pop;
 511
 512                 $msg = count( $wgOut->mCategoryLinks ) === 1 ? 'categories1' : 'categories';
 513                 $s = $this->makeKnownLinkObj( Title::makeTitle( NS_SPECIAL, 'Categories' ),
 514                         wfMsg( $msg ), 'article=' . urlencode( $wgTitle->getPrefixedDBkey() ) )
 515                         . ': ' . $t;
 516
 517                 # optional 'dmoz-like' category browser. Will be shown under the list
 518                 # of categories an article belong to
 519                 if($wgUseCategoryBrowser) {
 520                         $s .= '<br /><hr />';
 521
 522                         # get a big array of the parents tree
 523                         $parenttree = $wgTitle->getParentCategoryTree();
 524                         # Skin object passed by reference cause it can not be
 525                         # accessed under the method subfunction drawCategoryBrowser
 526                         $tempout = explode("\n", Skin::drawCategoryBrowser($parenttree, $this) );
 527                         # Clean out bogus first entry and sort them
 528                         unset($tempout[0]);
 529                         asort($tempout);
 530                         # Output one per line
 531                         $s .= implode("<br />\n", $tempout);
 532                 }
 533
 534                 return $s;
 535         }
 536
 537         /** Render the array as a serie of links.
 538          * @param array $tree Categories tree returned by Title::getParentCategoryTree
 539          * @param object &skin Skin passed by reference
 540          * @return string separated by &gt;, terminate with "\n"
 541          */
 542         function drawCategoryBrowser($tree, &$skin) {
 543                 $return = '';
 544                 foreach ($tree as $element => $parent) {
 545                         if (empty($parent)) {
 546                                 # element start a new list
 547                                 $return .= "\n";
 548                         } else {
 549                                 # grab the others elements
 550                                 $return .= Skin::drawCategoryBrowser($parent, $skin) . ' &gt; ';
 551                         }
 552                         # add our current element to the list
 553                         $eltitle = Title::NewFromText($element);
 554                         $return .=  $skin->makeLinkObj( $eltitle, $eltitle->getText() ) ;
 555                 }
 556                 return $return;
 557         }
 558
 559         function getCategories() {
 560                 $catlinks=$this->getCategoryLinks();
 561                 if(!empty($catlinks)) {
 562                         return "<p class='catlinks'>{$catlinks}</p>";
 563                 }
 564         }
 565
 566         function getQuickbarCompensator( $rows = 1 ) {
 567                 return "<td width='152' rowspan='{$rows}'>&nbsp;</td>";
 568         }
 569
 570         /**
 571          * This gets called immediately before the </body> tag.
 572          * @return string HTML to be put after </body> ???
 573          */
 574         function afterContent() {
 575                 $printfooter = "<div class=\"printfooter\">\n" . $this->printFooter() . "</div>\n";
 576                 return $printfooter . $this->doAfterContent();
 577         }
 578
 579         /** @return string Retrievied from HTML text */
 580         function printSource() {
 581                 global $wgTitle;
 582                 $url = htmlspecialchars( $wgTitle->getFullURL() );
 583                 return wfMsg( 'retrievedfrom', '<a href="'.$url.'">'.$url.'</a>' );
 584         }
 585
 586         function printFooter() {
 587                 return "<p>" .  $this->printSource() .
 588                         "</p>\n\n<p>" . $this->pageStats() . "</p>\n";
 589         }
 590
 591         /** overloaded by derived classes */
 592         function doAfterContent() { }
 593
 594         function pageTitleLinks() {
 595                 global $wgOut, $wgTitle, $wgUser, $wgRequest;
 596
 597                 extract( $wgRequest->getValues( 'oldid', 'diff' ) );
 598                 $action = $wgRequest->getText( 'action' );
 599
 600                 $s = $this->printableLink();
 601                 $disclaimer = $this->disclaimerLink(); # may be empty
 602                 if( $disclaimer ) {
 603                         $s .= ' | ' . $disclaimer;
 604                 }
 605                 $privacy = $this->privacyLink(); # may be empty too
 606                 if( $privacy ) {
 607                         $s .= ' | ' . $privacy;
 608                 }
 609
 610                 if ( $wgOut->isArticleRelated() ) {
 611                         if ( $wgTitle->getNamespace() == NS_IMAGE ) {
 612                                 $name = $wgTitle->getDBkey();
 613                                 $image = new Image( $wgTitle );
 614                                 if( $image->exists() ) {
 615                                         $link = htmlspecialchars( $image->getURL() );
 616                                         $style = $this->getInternalLinkAttributes( $link, $name );
 617                                         $s .= " | <a href=\"{$link}\"{$style}>{$name}</a>";
 618                                 }
 619                         }
 620                 }
 621                 if ( 'history' == $action || isset( $diff ) || isset( $oldid ) ) {
 622                         $s .= ' | ' . $this->makeKnownLinkObj( $wgTitle,
 623                                         wfMsg( 'currentrev' ) );
 624                 }
 625
 626                 if ( $wgUser->getNewtalk() ) {
 627                         # do not show "You have new messages" text when we are viewing our
 628                         # own talk page
 629                         if( !$wgTitle->equals( $wgUser->getTalkPage() ) ) {
 630                                 $tl = $this->makeKnownLinkObj( $wgUser->getTalkPage(), wfMsgHtml( 'newmessageslink' ), 'redirect=no' );
 631                                 $dl = $this->makeKnownLinkObj( $wgUser->getTalkPage(), wfMsgHtml( 'newmessagesdifflink' ), 'diff=cur' );
 632                                 $s.= ' | <strong>'. wfMsg( 'youhavenewmessages', $tl, $dl ) . '</strong>';
 633                                 # disable caching
 634                                 $wgOut->setSquidMaxage(0);
 635                                 $wgOut->enableClientCache(false);
 636                         }
 637                 }
 638
 639                 $undelete = $this->getUndeleteLink();
 640                 if( !empty( $undelete ) ) {
 641                         $s .= ' | '.$undelete;
 642                 }
 643                 return $s;
 644         }
 645
 646         function getUndeleteLink() {
 647                 global $wgUser, $wgTitle, $wgContLang, $action;
 648                 if(     $wgUser->isAllowed( 'deletedhistory' ) &&
 649                         (($wgTitle->getArticleId() == 0) || ($action == "history")) &&
 650                         ($n = $wgTitle->isDeleted() ) )
 651                 {
 652                         if ( $wgUser->isAllowed( 'delete' ) ) {
 653                                 $msg = 'thisisdeleted';
 654                         } else {
 655                                 $msg = 'viewdeleted';
 656                         }
 657                         return wfMsg( $msg,
 658                                 $this->makeKnownLink(
 659                                         $wgContLang->SpecialPage( 'Undelete/' . $wgTitle->getPrefixedDBkey() ),
 660                                         wfMsg( 'restorelink' . ($n == 1 ? '1' : ''), $n ) ) );
 661                 }
 662                 return '';
 663         }
 664
 665         function printableLink() {
 666                 global $wgOut, $wgFeedClasses, $wgRequest;
 667
 668                 $baseurl = $_SERVER['REQUEST_URI'];
 669                 if( strpos( '?', $baseurl ) == false ) {
 670                         $baseurl .= '?';
 671                 } else {
 672                         $baseurl .= '&';
 673                 }
 674                 $baseurl = htmlspecialchars( $baseurl );
 675                 $printurl = $wgRequest->escapeAppendQuery( 'printable=yes' );
 676
 677                 $s = "<a href=\"$printurl\">" . wfMsg( 'printableversion' ) . '</a>';
 678                 if( $wgOut->isSyndicated() ) {
 679                         foreach( $wgFeedClasses as $format => $class ) {
 680                                 $feedurl = $wgRequest->escapeAppendQuery( "feed=$format" );
 681                                 $s .= " | <a href=\"$feedurl\">{$format}</a>";
 682                         }
 683                 }
 684                 return $s;
 685         }
 686
 687         function pageTitle() {
 688                 global $wgOut;
 689
 690                 $s = '<h1 class="pagetitle">' . htmlspecialchars( $wgOut->getPageTitle() ) . '</h1>';
 691                 return $s;
 692         }
 693
 694         function pageSubtitle() {
 695                 global $wgOut;
 696
 697                 $sub = $wgOut->getSubtitle();
 698                 if ( '' == $sub ) {
 699                         global $wgExtraSubtitle;
 700                         $sub = wfMsg( 'tagline' ) . $wgExtraSubtitle;
 701                 }
 702                 $subpages = $this->subPageSubtitle();
 703                 $sub .= !empty($subpages)?"</p><p class='subpages'>$subpages":'';
 704                 $s = "<p class='subtitle'>{$sub}</p>\n";
 705                 return $s;
 706         }
 707
 708         function subPageSubtitle() {
 709                 global $wgOut,$wgTitle,$wgNamespacesWithSubpages;
 710                 $subpages = '';
 711                 if($wgOut->isArticle() && !empty($wgNamespacesWithSubpages[$wgTitle->getNamespace()])) {
 712                         $ptext=$wgTitle->getPrefixedText();
 713                         if(preg_match('/\//',$ptext)) {
 714                                 $links = explode('/',$ptext);
 715                                 $c = 0;
 716                                 $growinglink = '';
 717                                 foreach($links as $link) {
 718                                         $c++;
 719                                         if ($c<count($links)) {
 720                                                 $growinglink .= $link;
 721                                                 $getlink = $this->makeLink( $growinglink, htmlspecialchars( $link ) );
 722                                                 if(preg_match('/class="new"/i',$getlink)) { break; } # this is a hack, but it saves time
 723                                                 if ($c>1) {
 724                                                         $subpages .= ' | ';
 725                                                 } else  {
 726                                                         $subpages .= '&lt; ';
 727                                                 }
 728                                                 $subpages .= $getlink;
 729                                                 $growinglink .= '/';
 730                                         }
 731                                 }
 732                         }
 733                 }
 734                 return $subpages;
 735         }
 736
 737         function nameAndLogin() {
 738                 global $wgUser, $wgTitle, $wgLang, $wgContLang, $wgShowIPinHeader;
 739
 740                 $li = $wgContLang->specialPage( 'Userlogin' );
 741                 $lo = $wgContLang->specialPage( 'Userlogout' );
 742
 743                 $s = '';
 744                 if ( $wgUser->isAnon() ) {
 745                         if( $wgShowIPinHeader && isset( $_COOKIE[ini_get('session.name')] ) ) {
 746                                 $n = wfGetIP();
 747
 748                                 $tl = $this->makeKnownLinkObj( $wgUser->getTalkPage(),
 749                                   $wgLang->getNsText( NS_TALK ) );
 750
 751                                 $s .= $n . ' ('.$tl.')';
 752                         } else {
 753                                 $s .= wfMsg('notloggedin');
 754                         }
 755
 756                         $rt = $wgTitle->getPrefixedURL();
 757                         if ( 0 == strcasecmp( urlencode( $lo ), $rt ) ) {
 758                                 $q = '';
 759                         } else { $q = "returnto={$rt}"; }
 760
 761                         $s .= "\n<br />" . $this->makeKnownLinkObj(
 762                                 Title::makeTitle( NS_SPECIAL, 'Userlogin' ),
 763                                 wfMsg( 'login' ), $q );
 764                 } else {
 765                         $n = $wgUser->getName();
 766                         $rt = $wgTitle->getPrefixedURL();
 767                         $tl = $this->makeKnownLinkObj( $wgUser->getTalkPage(),
 768                           $wgLang->getNsText( NS_TALK ) );
 769
 770                         $tl = " ({$tl})";
 771
 772                         $s .= $this->makeKnownLinkObj( $wgUser->getUserPage(),
 773                           $n ) . "{$tl}<br />" .
 774                           $this->makeKnownLinkObj( Title::makeTitle( NS_SPECIAL, 'Userlogout' ), wfMsg( 'logout' ),
 775                           "returnto={$rt}" ) . ' | ' .
 776                           $this->specialLink( 'preferences' );
 777                 }
 778                 $s .= ' | ' . $this->makeKnownLink( wfMsgForContent( 'helppage' ),
 779                   wfMsg( 'help' ) );
 780
 781                 return $s;
 782         }
 783
 784         function getSearchLink() {
 785                 $searchPage =& Title::makeTitle( NS_SPECIAL, 'Search' );
 786                 return $searchPage->getLocalURL();
 787         }
 788
 789         function escapeSearchLink() {
 790                 return htmlspecialchars( $this->getSearchLink() );
 791         }
 792
 793         function searchForm() {
 794                 global $wgRequest;
 795                 $search = $wgRequest->getText( 'search' );
 796
 797                 $s = '<form name="search" class="inline" method="post" action="'
 798                   . $this->escapeSearchLink() . "\">\n"
 799                   . '<input type="text" name="search" size="19" value="'
 800                   . htmlspecialchars(substr($search,0,256)) . "\" />\n"
 801                   . '<input type="submit" name="go" value="' . wfMsg ('go') . '" />&nbsp;'
 802                   . '<input type="submit" name="fulltext" value="' . wfMsg ('search') . "\" />\n</form>";
 803
 804                 return $s;
 805         }
 806
 807         function topLinks() {
 808                 global $wgOut;
 809                 $sep = " |\n";
 810
 811                 $s = $this->mainPageLink() . $sep
 812                   . $this->specialLink( 'recentchanges' );
 813
 814                 if ( $wgOut->isArticleRelated() ) {
 815                         $s .=  $sep . $this->editThisPage()
 816                           . $sep . $this->historyLink();
 817                 }
 818                 # Many people don't like this dropdown box
 819                 #$s .= $sep . $this->specialPagesList();
 820
 821                 /* show links to different language variants */
 822                 global $wgDisableLangConversion, $wgContLang, $wgTitle;
 823                 $variants = $wgContLang->getVariants();
 824                 if( !$wgDisableLangConversion && sizeof( $variants ) > 1 ) {
 825                         foreach( $variants as $code ) {
 826                                 $varname = $wgContLang->getVariantname( $code );
 827                                 if( $varname == 'disable' )
 828                                         continue;
 829                                 $s .= ' | <a href="' . $wgTitle->getLocalUrl( 'variant=' . $code ) . '">' . $varname . '</a>';
 830                         }
 831                 }
 832
 833                 return $s;
 834         }
 835
 836         function bottomLinks() {
 837                 global $wgOut, $wgUser, $wgTitle, $wgUseTrackbacks;
 838                 $sep = " |\n";
 839
 840                 $s = '';
 841                 if ( $wgOut->isArticleRelated() ) {
 842                         $s .= '<strong>' . $this->editThisPage() . '</strong>';
 843                         if ( $wgUser->isLoggedIn() ) {
 844                                 $s .= $sep . $this->watchThisPage();
 845                         }
 846                         $s .= $sep . $this->talkLink()
 847                           . $sep . $this->historyLink()
 848                           . $sep . $this->whatLinksHere()
 849                           . $sep . $this->watchPageLinksLink();
 850
 851                         if ($wgUseTrackbacks)
 852                                 $s .= $sep . $this->trackbackLink();
 853
 854                         if ( $wgTitle->getNamespace() == NS_USER
 855                             || $wgTitle->getNamespace() == NS_USER_TALK )
 856
 857                         {
 858                                 $id=User::idFromName($wgTitle->getText());
 859                                 $ip=User::isIP($wgTitle->getText());
 860
 861                                 if($id || $ip) { # both anons and non-anons have contri list
 862                                         $s .= $sep . $this->userContribsLink();
 863                                 }
 864                                 if( $this->showEmailUser( $id ) ) {
 865                                         $s .= $sep . $this->emailUserLink();
 866                                 }
 867                         }
 868                         if ( $wgTitle->getArticleId() ) {
 869                                 $s .= "\n<br />";
 870                                 if($wgUser->isAllowed('delete')) { $s .= $this->deleteThisPage(); }
 871                                 if($wgUser->isAllowed('protect')) { $s .= $sep . $this->protectThisPage(); }
 872                                 if($wgUser->isAllowed('move')) { $s .= $sep . $this->moveThisPage(); }
 873                         }
 874                         $s .= "<br />\n" . $this->otherLanguages();
 875                 }
 876                 return $s;
 877         }
 878
 879         function pageStats() {
 880                 global $wgOut, $wgLang, $wgArticle, $wgRequest, $wgUser;
 881                 global $wgDisableCounters, $wgMaxCredits, $wgShowCreditsIfMax, $wgTitle, $wgPageShowWatchingUsers;
 882
 883                 extract( $wgRequest->getValues( 'oldid', 'diff' ) );
 884                 if ( ! $wgOut->isArticle() ) { return ''; }
 885                 if ( isset( $oldid ) || isset( $diff ) ) { return ''; }
 886                 if ( 0 == $wgArticle->getID() ) { return ''; }
 887
 888                 $s = '';
 889                 if ( !$wgDisableCounters ) {
 890                         $count = $wgLang->formatNum( $wgArticle->getCount() );
 891                         if ( $count ) {
 892                                 $s = wfMsg( 'viewcount', $count );
 893                         }
 894                 }
 895
 896                 if (isset($wgMaxCredits) && $wgMaxCredits != 0) {
 897                     require_once('Credits.php');
 898                     $s .= ' ' . getCredits($wgArticle, $wgMaxCredits, $wgShowCreditsIfMax);
 899                 } else {
 900                     $s .= $this->lastModified();
 901                 }
 902
 903                 if ($wgPageShowWatchingUsers && $wgUser->getOption( 'shownumberswatching' )) {
 904                         $dbr =& wfGetDB( DB_SLAVE );
 905                         extract( $dbr->tableNames( 'watchlist' ) );
 906                         $sql = "SELECT COUNT(*) AS n FROM $watchlist
 907                                 WHERE wl_title='" . $dbr->strencode($wgTitle->getDBKey()) .
 908                                 "' AND  wl_namespace=" . $wgTitle->getNamespace() ;
 909                         $res = $dbr->query( $sql, 'Skin::pageStats');
 910                         $x = $dbr->fetchObject( $res );
 911                         $s .= ' ' . wfMsg('number_of_watching_users_pageview', $x->n );
 912                 }
 913
 914                 return $s . ' ' .  $this->getCopyright();
 915         }
 916
 917         function getCopyright( $type = 'detect' ) {
 918                 global $wgRightsPage, $wgRightsUrl, $wgRightsText, $wgRequest;
 919
 920                 if ( $type == 'detect' ) {
 921                         $oldid = $wgRequest->getVal( 'oldid' );
 922                         $diff = $wgRequest->getVal( 'diff' );
 923
 924                         if ( !is_null( $oldid ) && is_null( $diff ) && wfMsgForContent( 'history_copyright' ) !== '-' ) {
 925                                 $type = 'history';
 926                         } else {
 927                                 $type = 'normal';
 928                         }
 929                 }
 930
 931                 if ( $type == 'history' ) {
 932                         $msg = 'history_copyright';
 933                 } else {
 934                         $msg = 'copyright';
 935                 }
 936
 937                 $out = '';
 938                 if( $wgRightsPage ) {
 939                         $link = $this->makeKnownLink( $wgRightsPage, $wgRightsText );
 940                 } elseif( $wgRightsUrl ) {
 941                         $link = $this->makeExternalLink( $wgRightsUrl, $wgRightsText );
 942                 } else {
 943                         # Give up now
 944                         return $out;
 945                 }
 946                 $out .= wfMsgForContent( $msg, $link );
 947                 return $out;
 948         }
 949
 950         function getCopyrightIcon() {
 951                 global $wgRightsUrl, $wgRightsText, $wgRightsIcon, $wgCopyrightIcon;
 952                 $out = '';
 953                 if ( isset( $wgCopyrightIcon ) && $wgCopyrightIcon ) {
 954                         $out = $wgCopyrightIcon;
 955                 } else if ( $wgRightsIcon ) {
 956                         $icon = htmlspecialchars( $wgRightsIcon );
 957                         if ( $wgRightsUrl ) {
 958                                 $url = htmlspecialchars( $wgRightsUrl );
 959                                 $out .= '<a href="'.$url.'">';
 960                         }
 961                         $text = htmlspecialchars( $wgRightsText );
 962                         $out .= "<img src=\"$icon\" alt='$text' />";
 963                         if ( $wgRightsUrl ) {
 964                                 $out .= '</a>';
 965                         }
 966                 }
 967                 return $out;
 968         }
 969
 970         function getPoweredBy() {
 971                 global $wgStylePath;
 972                 $url = htmlspecialchars( "$wgStylePath/common/images/poweredby_mediawiki_88x31.png" );
 973                 $img = '<a href="http://www.mediawiki.org/"><img src="'.$url.'" alt="MediaWiki" /></a>';
 974                 return $img;
 975         }
 976
 977         function lastModified() {
 978                 global $wgLang, $wgArticle, $wgLoadBalancer;
 979
 980                 $timestamp = $wgArticle->getTimestamp();
 981                 if ( $timestamp ) {
 982                         $d = $wgLang->timeanddate( $timestamp, true );
 983                         $s = ' ' . wfMsg( 'lastmodified', $d );
 984                 } else {
 985                         $s = '';
 986                 }
 987                 if ( $wgLoadBalancer->getLaggedSlaveMode() ) {
 988                         $s .= ' <strong>' . wfMsg( 'laggedslavemode' ) . '</strong>';
 989                 }
 990                 return $s;
 991         }
 992
 993         function logoText( $align = '' ) {
 994                 if ( '' != $align ) { $a = " align='{$align}'"; }
 995                 else { $a = ''; }
 996
 997                 $mp = wfMsg( 'mainpage' );
 998                 $titleObj = Title::newFromText( $mp );
 999                 if ( is_object( $titleObj ) ) {
1000                         $url = $titleObj->escapeLocalURL();
1001                 } else {
1002                         $url = '';
1003                 }
1004
1005                 $logourl = $this->getLogo();
1006                 $s = "<a href='{$url}'><img{$a} src='{$logourl}' alt='[{$mp}]' /></a>";
1007                 return $s;
1008         }
1009
1010         /**
1011          * show a drop-down box of special pages
1012          * @TODO crash bug913. Need to be rewrote completly.
1013          */
1014         function specialPagesList() {
1015                 global $wgUser, $wgContLang, $wgServer, $wgRedirectScript, $wgAvailableRights;
1016                 require_once('SpecialPage.php');
1017                 $a = array();
1018                 $pages = SpecialPage::getPages();
1019
1020                 // special pages without access restriction
1021                 foreach ( $pages[''] as $name => $page ) {
1022                         $a[$name] = $page->getDescription();
1023                 }
1024
1025                 // Other special pages that are restricted.
1026                 // Copied from SpecialSpecialpages.php
1027                 foreach($wgAvailableRights as $right) {
1028                         if( $wgUser->isAllowed($right) ) {
1029                                 /** Add all pages for this right */
1030                                 if(isset($pages[$right])) {
1031                                         foreach($pages[$right] as $name => $page) {
1032                                         $a[$name] = $page->getDescription();
1033                                         }
1034                                 }
1035                         }
1036                 }
1037
1038                 $go = wfMsg( 'go' );
1039                 $sp = wfMsg( 'specialpages' );
1040                 $spp = $wgContLang->specialPage( 'Specialpages' );
1041
1042                 $s = '<form id="specialpages" method="get" class="inline" ' .
1043                   'action="' . htmlspecialchars( "{$wgServer}{$wgRedirectScript}" ) . "\">\n";
1044                 $s .= "<select name=\"wpDropdown\">\n";
1045                 $s .= "<option value=\"{$spp}\">{$sp}</option>\n";
1046
1047
1048                 foreach ( $a as $name => $desc ) {
1049                         $p = $wgContLang->specialPage( $name );
1050                         $s .= "<option value=\"{$p}\">{$desc}</option>\n";
1051                 }
1052                 $s .= "</select>\n";
1053                 $s .= "<input type='submit' value=\"{$go}\" name='redirect' />\n";
1054                 $s .= "</form>\n";
1055                 return $s;
1056         }
1057
1058         function mainPageLink() {
1059                 $mp = wfMsgForContent( 'mainpage' );
1060                 $mptxt = wfMsg( 'mainpage');
1061                 $s = $this->makeKnownLink( $mp, $mptxt );
1062                 return $s;
1063         }
1064
1065         function copyrightLink() {
1066                 $s = $this->makeKnownLink( wfMsgForContent( 'copyrightpage' ),
1067                   wfMsg( 'copyrightpagename' ) );
1068                 return $s;
1069         }
1070
1071         function privacyLink() {
1072                 $privacy = wfMsg( 'privacy' );
1073                 if ($privacy == '-') {
1074                         return '';
1075                 } else {
1076                         return $this->makeKnownLink( wfMsgForContent( 'privacypage' ), $privacy);
1077                 }
1078         }
1079
1080         function aboutLink() {
1081                 $s = $this->makeKnownLink( wfMsgForContent( 'aboutpage' ),
1082                   wfMsg( 'aboutsite' ) );
1083                 return $s;
1084         }
1085
1086         function disclaimerLink() {
1087                 $disclaimers = wfMsg( 'disclaimers' );
1088                 if ($disclaimers == '-') {
1089                         return '';
1090                 } else {
1091                         return $this->makeKnownLink( wfMsgForContent( 'disclaimerpage' ),
1092                                                      $disclaimers );
1093                 }
1094         }
1095
1096         function editThisPage() {
1097                 global $wgOut, $wgTitle;
1098
1099                 if ( ! $wgOut->isArticleRelated() ) {
1100                         $s = wfMsg( 'protectedpage' );
1101                 } else {
1102                         if ( $wgTitle->userCanEdit() ) {
1103                                 $t = wfMsg( 'editthispage' );
1104                         } else {
1105                                 $t = wfMsg( 'viewsource' );
1106                         }
1107
1108                         $s = $this->makeKnownLinkObj( $wgTitle, $t, $this->editUrlOptions() );
1109                 }
1110                 return $s;
1111         }
1112
1113         /**
1114          * Return URL options for the 'edit page' link.
1115          * This may include an 'oldid' specifier, if the current page view is such.
1116          *
1117          * @return string
1118          * @access private
1119          */
1120         function editUrlOptions() {
1121                 global $wgArticle;
1122
1123                 if( $this->mRevisionId && ! $wgArticle->isCurrent() ) {
1124                         return "action=edit&oldid=" . intval( $this->mRevisionId );
1125                 } else {
1126                         return "action=edit";
1127                 }
1128         }
1129
1130         function deleteThisPage() {
1131                 global $wgUser, $wgTitle, $wgRequest;
1132
1133                 $diff = $wgRequest->getVal( 'diff' );
1134                 if ( $wgTitle->getArticleId() && ( ! $diff ) && $wgUser->isAllowed('delete') ) {
1135                         $t = wfMsg( 'deletethispage' );
1136
1137                         $s = $this->makeKnownLinkObj( $wgTitle, $t, 'action=delete' );
1138                 } else {
1139                         $s = '';
1140                 }
1141                 return $s;
1142         }
1143
1144         function protectThisPage() {
1145                 global $wgUser, $wgTitle, $wgRequest;
1146
1147                 $diff = $wgRequest->getVal( 'diff' );
1148                 if ( $wgTitle->getArticleId() && ( ! $diff ) && $wgUser->isAllowed('protect') ) {
1149                         if ( $wgTitle->isProtected() ) {
1150                                 $t = wfMsg( 'unprotectthispage' );
1151                                 $q = 'action=unprotect';
1152                         } else {
1153                                 $t = wfMsg( 'protectthispage' );
1154                                 $q = 'action=protect';
1155                         }
1156                         $s = $this->makeKnownLinkObj( $wgTitle, $t, $q );
1157                 } else {
1158                         $s = '';
1159                 }
1160                 return $s;
1161         }
1162
1163         function watchThisPage() {
1164                 global $wgOut, $wgTitle;
1165
1166                 if ( $wgOut->isArticleRelated() ) {
1167                         if ( $wgTitle->userIsWatching() ) {
1168                                 $t = wfMsg( 'unwatchthispage' );
1169                                 $q = 'action=unwatch';
1170                         } else {
1171                                 $t = wfMsg( 'watchthispage' );
1172                                 $q = 'action=watch';
1173                         }
1174                         $s = $this->makeKnownLinkObj( $wgTitle, $t, $q );
1175                 } else {
1176                         $s = wfMsg( 'notanarticle' );
1177                 }
1178                 return $s;
1179         }
1180
1181         function moveThisPage() {
1182                 global $wgTitle;
1183
1184                 if ( $wgTitle->userCanMove() ) {
1185                         return $this->makeKnownLinkObj( Title::makeTitle( NS_SPECIAL, 'Movepage' ),
1186                           wfMsg( 'movethispage' ), 'target=' . $wgTitle->getPrefixedURL() );
1187                 } else {
1188                         // no message if page is protected - would be redundant
1189                         return '';
1190                 }
1191         }
1192
1193         function historyLink() {
1194                 global $wgTitle;
1195
1196                 return $this->makeKnownLinkObj( $wgTitle,
1197                   wfMsg( 'history' ), 'action=history' );
1198         }
1199
1200         function whatLinksHere() {
1201                 global $wgTitle;
1202
1203                 return $this->makeKnownLinkObj( Title::makeTitle( NS_SPECIAL, 'Whatlinkshere' ),
1204                   wfMsg( 'whatlinkshere' ), 'target=' . $wgTitle->getPrefixedURL() );
1205         }
1206
1207         function userContribsLink() {
1208                 global $wgTitle;
1209
1210                 return $this->makeKnownLinkObj( Title::makeTitle( NS_SPECIAL, 'Contributions' ),
1211                   wfMsg( 'contributions' ), 'target=' . $wgTitle->getPartialURL() );
1212         }
1213
1214         function showEmailUser( $id ) {
1215                 global $wgEnableEmail, $wgEnableUserEmail, $wgUser;
1216                 return $wgEnableEmail &&
1217                        $wgEnableUserEmail &&
1218                        $wgUser->isLoggedIn() && # show only to signed in users
1219                        0 != $id; # we can only email to non-anons ..
1220 #                      '' != $id->getEmail() && # who must have an email address stored ..
1221 #                      0 != $id->getEmailauthenticationtimestamp() && # .. which is authenticated
1222 #                      1 != $wgUser->getOption('disablemail'); # and not disabled
1223         }
1224
1225         function emailUserLink() {
1226                 global $wgTitle;
1227
1228                 return $this->makeKnownLinkObj( Title::makeTitle( NS_SPECIAL, 'Emailuser' ),
1229                   wfMsg( 'emailuser' ), 'target=' . $wgTitle->getPartialURL() );
1230         }
1231
1232         function watchPageLinksLink() {
1233                 global $wgOut, $wgTitle;
1234
1235                 if ( ! $wgOut->isArticleRelated() ) {
1236                         return '(' . wfMsg( 'notanarticle' ) . ')';
1237                 } else {
1238                         return $this->makeKnownLinkObj( Title::makeTitle( NS_SPECIAL,
1239                           'Recentchangeslinked' ), wfMsg( 'recentchangeslinked' ),
1240                           'target=' . $wgTitle->getPrefixedURL() );
1241                 }
1242         }
1243
1244         function trackbackLink() {
1245                 global $wgTitle;
1246
1247                 return "<a href=\"" . $wgTitle->trackbackURL() . "\">"
1248                         . wfMsg('trackbacklink') . "</a>";
1249         }
1250
1251         function otherLanguages() {
1252                 global $wgOut, $wgContLang, $wgHideInterlanguageLinks;
1253
1254                 if ( $wgHideInterlanguageLinks ) {
1255                         return '';
1256                 }
1257
1258                 $a = $wgOut->getLanguageLinks();
1259                 if ( 0 == count( $a ) ) {
1260                         return '';
1261                 }
1262
1263                 $s = wfMsg( 'otherlanguages' ) . ': ';
1264                 $first = true;
1265                 if($wgContLang->isRTL()) $s .= '<span dir="LTR">';
1266                 foreach( $a as $l ) {
1267                         if ( ! $first ) { $s .= ' | '; }
1268                         $first = false;
1269
1270                         $nt = Title::newFromText( $l );
1271                         $url = $nt->escapeFullURL();
1272                         $text = $wgContLang->getLanguageName( $nt->getInterwiki() );
1273
1274                         if ( '' == $text ) { $text = $l; }
1275                         $style = $this->getExternalLinkAttributes( $l, $text );
1276                         $s .= "<a href=\"{$url}\"{$style}>{$text}</a>";
1277                 }
1278                 if($wgContLang->isRTL()) $s .= '</span>';
1279                 return $s;
1280         }
1281
1282         function bugReportsLink() {
1283                 $s = $this->makeKnownLink( wfMsgForContent( 'bugreportspage' ),
1284                   wfMsg( 'bugreports' ) );
1285                 return $s;
1286         }
1287
1288         function dateLink() {
1289                 $t1 = Title::newFromText( gmdate( 'F j' ) );
1290                 $t2 = Title::newFromText( gmdate( 'Y' ) );
1291
1292                 $id = $t1->getArticleID();
1293
1294                 if ( 0 == $id ) {
1295                         $s = $this->makeBrokenLink( $t1->getText() );
1296                 } else {
1297                         $s = $this->makeKnownLink( $t1->getText() );
1298                 }
1299                 $s .= ', ';
1300
1301                 $id = $t2->getArticleID();
1302
1303                 if ( 0 == $id ) {
1304                         $s .= $this->makeBrokenLink( $t2->getText() );
1305                 } else {
1306                         $s .= $this->makeKnownLink( $t2->getText() );
1307                 }
1308                 return $s;
1309         }
1310
1311         function talkLink() {
1312                 global $wgTitle;
1313
1314                 if ( NS_SPECIAL == $wgTitle->getNamespace() ) {
1315                         # No discussion links for special pages
1316                         return '';
1317                 }
1318
1319                 if( $wgTitle->isTalkPage() ) {
1320                         $link = $wgTitle->getSubjectPage();
1321                         switch( $link->getNamespace() ) {
1322                         case NS_MAIN:
1323                                 $text = wfMsg('articlepage');
1324                                 break;
1325                         case NS_USER:
1326                                 $text = wfMsg('userpage');
1327                                 break;
1328                         case NS_PROJECT:
1329                                 $text = wfMsg('wikipediapage');
1330                                 break;
1331                         case NS_IMAGE:
1332                                 $text = wfMsg('imagepage');
1333                                 break;
1334                         default:
1335                                 $text= wfMsg('articlepage');
1336                         }
1337                 } else {
1338                         $link = $wgTitle->getTalkPage();
1339                         $text = wfMsg( 'talkpage' );
1340                 }
1341
1342                 $s = $this->makeLinkObj( $link, $text );
1343
1344                 return $s;
1345         }
1346
1347         function commentLink() {
1348                 global $wgTitle;
1349
1350                 if ( $wgTitle->getNamespace() == NS_SPECIAL ) {
1351                         return '';
1352                 }
1353                 return $this->makeKnownLinkObj( $wgTitle->getTalkPage(),
1354                         wfMsg( 'postcomment' ), 'action=edit&section=new' );
1355         }
1356
1357         /* these are used extensively in SkinTemplate, but also some other places */
1358         /*static*/ function makeSpecialUrl( $name, $urlaction='' ) {
1359                 $title = Title::makeTitle( NS_SPECIAL, $name );
1360                 return $title->getLocalURL( $urlaction );
1361         }
1362
1363         /*static*/ function makeI18nUrl ( $name, $urlaction='' ) {
1364                 $title = Title::newFromText( wfMsgForContent($name) );
1365                 $this->checkTitle($title, $name);
1366                 return $title->getLocalURL( $urlaction );
1367         }
1368
1369         /*static*/ function makeUrl ( $name, $urlaction='' ) {
1370                 $title = Title::newFromText( $name );
1371                 $this->checkTitle($title, $name);
1372                 return $title->getLocalURL( $urlaction );
1373         }
1374
1375         # If url string starts with http, consider as external URL, else
1376         # internal
1377         /*static*/ function makeInternalOrExternalUrl( $name ) {
1378                 if ( preg_match( '/^(?:' . wfUrlProtocols() . ')/', $name ) ) {
1379                         return $name;
1380                 } else {
1381                         return $this->makeUrl( $name );
1382                 }
1383         }
1384
1385         # this can be passed the NS number as defined in Language.php
1386         /*static*/ function makeNSUrl( $name, $urlaction='', $namespace=NS_MAIN ) {
1387                 $title = Title::makeTitleSafe( $namespace, $name );
1388                 $this->checkTitle($title, $name);
1389                 return $title->getLocalURL( $urlaction );
1390         }
1391
1392         /* these return an array with the 'href' and boolean 'exists' */
1393         /*static*/ function makeUrlDetails ( $name, $urlaction='' ) {
1394                 $title = Title::newFromText( $name );
1395                 $this->checkTitle($title, $name);
1396                 return array(
1397                         'href' => $title->getLocalURL( $urlaction ),
1398                         'exists' => $title->getArticleID() != 0?true:false
1399                 );
1400         }
1401
1402         /**
1403          * Make URL details where the article exists (or at least it's convenient to think so)
1404          */
1405         function makeKnownUrlDetails( $name, $urlaction='' ) {
1406                 $title = Title::newFromText( $name );
1407                 $this->checkTitle($title, $name);
1408                 return array(
1409                         'href' => $title->getLocalURL( $urlaction ),
1410                         'exists' => true
1411                 );
1412         }
1413
1414         # make sure we have some title to operate on
1415         /*static*/ function checkTitle ( &$title, &$name ) {
1416                 if(!is_object($title)) {
1417                         $title = Title::newFromText( $name );
1418                         if(!is_object($title)) {
1419                                 $title = Title::newFromText( '--error: link target missing--' );
1420                         }
1421                 }
1422         }
1423
1424         /**
1425          * Build an array that represents the sidebar(s), the navigation bar among them
1426          *
1427          * @return array
1428          * @access private
1429          */
1430         function buildSidebar() {
1431                 global $wgDBname, $parserMemc;
1432                 global $wgLanguageCode, $wgContLanguageCode;
1433
1434                 $fname = 'SkinTemplate::buildSidebar';
1435
1436                 wfProfileIn( $fname );
1437
1438                 if ($wgLanguageCode == $wgContLanguageCode)
1439                         $cacheSidebar = true;
1440                 else
1441                         $cacheSidebar = false;
1442
1443                 if ($cacheSidebar) {
1444                         $cachedsidebar=$parserMemc->get("{$wgDBname}:sidebar");
1445                         if ($cachedsidebar!="") {
1446                                 wfProfileOut($fname);
1447                                 return $cachedsidebar;
1448                         }
1449                 }
1450
1451                 $bar = array();
1452                 $lines = explode( "\n", wfMsgForContent( 'sidebar' ) );
1453                 foreach ($lines as $line) {
1454                         if (strpos($line, '*') !== 0)
1455                                 continue;
1456                         if (strpos($line, '**') !== 0) {
1457                                 $line = trim($line, '* ');
1458                                 $heading = $line;
1459                         } else {
1460                                 if (strpos($line, '|') !== false) { // sanity check
1461                                         $line = explode( '|' , trim($line, '* '), 2 );
1462                                         $link = wfMsgForContent( $line[0] );
1463                                         if ($link == '-')
1464                                                 continue;
1465                                         if (wfEmptyMsg($line[1], $text = wfMsg($line[1])))
1466                                                 $text = $line[1];
1467                                         if (wfEmptyMsg($line[0], $link))
1468                                                 $link = $line[0];
1469                                         $href = $this->makeInternalOrExternalUrl( $link );
1470                                         $bar[$heading][] = array(
1471                                                 'text' => $text,
1472                                                 'href' => $href,
1473                                                 'id' => 'n-' . strtr($line[1], ' ', '-'),
1474                                                 'active' => false
1475                                         );
1476                                 } else { continue; }
1477                         }
1478                 }
1479                 if ($cacheSidebar)
1480                         $cachednotice=$parserMemc->set("{$wgDBname}:sidebar",$bar,86400);
1481                 wfProfileOut( $fname );
1482                 return $bar;
1483         }
1484 }
1485 ?>