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                 $s = '<h1 class="pagetitle">' . htmlspecialchars( $wgOut->getPageTitle() ) . '</h1>';
 690                 return $s;
 691         }
 692
 693         function pageSubtitle() {
 694                 global $wgOut;
 695
 696                 $sub = $wgOut->getSubtitle();
 697                 if ( '' == $sub ) {
 698                         global $wgExtraSubtitle;
 699                         $sub = wfMsg( 'tagline' ) . $wgExtraSubtitle;
 700                 }
 701                 $subpages = $this->subPageSubtitle();
 702                 $sub .= !empty($subpages)?"</p><p class='subpages'>$subpages":'';
 703                 $s = "<p class='subtitle'>{$sub}</p>\n";
 704                 return $s;
 705         }
 706
 707         function subPageSubtitle() {
 708                 global $wgOut,$wgTitle,$wgNamespacesWithSubpages;
 709                 $subpages = '';
 710                 if($wgOut->isArticle() && !empty($wgNamespacesWithSubpages[$wgTitle->getNamespace()])) {
 711                         $ptext=$wgTitle->getPrefixedText();
 712                         if(preg_match('/\//',$ptext)) {
 713                                 $links = explode('/',$ptext);
 714                                 $c = 0;
 715                                 $growinglink = '';
 716                                 foreach($links as $link) {
 717                                         $c++;
 718                                         if ($c<count($links)) {
 719                                                 $growinglink .= $link;
 720                                                 $getlink = $this->makeLink( $growinglink, htmlspecialchars( $link ) );
 721                                                 if(preg_match('/class="new"/i',$getlink)) { break; } # this is a hack, but it saves time
 722                                                 if ($c>1) {
 723                                                         $subpages .= ' | ';
 724                                                 } else  {
 725                                                         $subpages .= '&lt; ';
 726                                                 }
 727                                                 $subpages .= $getlink;
 728                                                 $growinglink .= '/';
 729                                         }
 730                                 }
 731                         }
 732                 }
 733                 return $subpages;
 734         }
 735
 736         function nameAndLogin() {
 737                 global $wgUser, $wgTitle, $wgLang, $wgContLang, $wgShowIPinHeader;
 738
 739                 $li = $wgContLang->specialPage( 'Userlogin' );
 740                 $lo = $wgContLang->specialPage( 'Userlogout' );
 741
 742                 $s = '';
 743                 if ( $wgUser->isAnon() ) {
 744                         if( $wgShowIPinHeader && isset( $_COOKIE[ini_get('session.name')] ) ) {
 745                                 $n = wfGetIP();
 746
 747                                 $tl = $this->makeKnownLinkObj( $wgUser->getTalkPage(),
 748                                   $wgLang->getNsText( NS_TALK ) );
 749
 750                                 $s .= $n . ' ('.$tl.')';
 751                         } else {
 752                                 $s .= wfMsg('notloggedin');
 753                         }
 754
 755                         $rt = $wgTitle->getPrefixedURL();
 756                         if ( 0 == strcasecmp( urlencode( $lo ), $rt ) ) {
 757                                 $q = '';
 758                         } else { $q = "returnto={$rt}"; }
 759
 760                         $s .= "\n<br />" . $this->makeKnownLinkObj(
 761                                 Title::makeTitle( NS_SPECIAL, 'Userlogin' ),
 762                                 wfMsg( 'login' ), $q );
 763                 } else {
 764                         $n = $wgUser->getName();
 765                         $rt = $wgTitle->getPrefixedURL();
 766                         $tl = $this->makeKnownLinkObj( $wgUser->getTalkPage(),
 767                           $wgLang->getNsText( NS_TALK ) );
 768
 769                         $tl = " ({$tl})";
 770
 771                         $s .= $this->makeKnownLinkObj( $wgUser->getUserPage(),
 772                           $n ) . "{$tl}<br />" .
 773                           $this->makeKnownLinkObj( Title::makeTitle( NS_SPECIAL, 'Userlogout' ), wfMsg( 'logout' ),
 774                           "returnto={$rt}" ) . ' | ' .
 775                           $this->specialLink( 'preferences' );
 776                 }
 777                 $s .= ' | ' . $this->makeKnownLink( wfMsgForContent( 'helppage' ),
 778                   wfMsg( 'help' ) );
 779
 780                 return $s;
 781         }
 782
 783         function getSearchLink() {
 784                 $searchPage =& Title::makeTitle( NS_SPECIAL, 'Search' );
 785                 return $searchPage->getLocalURL();
 786         }
 787
 788         function escapeSearchLink() {
 789                 return htmlspecialchars( $this->getSearchLink() );
 790         }
 791
 792         function searchForm() {
 793                 global $wgRequest;
 794                 $search = $wgRequest->getText( 'search' );
 795
 796                 $s = '<form name="search" class="inline" method="post" action="'
 797                   . $this->escapeSearchLink() . "\">\n"
 798                   . '<input type="text" name="search" size="19" value="'
 799                   . htmlspecialchars(substr($search,0,256)) . "\" />\n"
 800                   . '<input type="submit" name="go" value="' . wfMsg ('go') . '" />&nbsp;'
 801                   . '<input type="submit" name="fulltext" value="' . wfMsg ('search') . "\" />\n</form>";
 802
 803                 return $s;
 804         }
 805
 806         function topLinks() {
 807                 global $wgOut;
 808                 $sep = " |\n";
 809
 810                 $s = $this->mainPageLink() . $sep
 811                   . $this->specialLink( 'recentchanges' );
 812
 813                 if ( $wgOut->isArticleRelated() ) {
 814                         $s .=  $sep . $this->editThisPage()
 815                           . $sep . $this->historyLink();
 816                 }
 817                 # Many people don't like this dropdown box
 818                 #$s .= $sep . $this->specialPagesList();
 819
 820                 /* show links to different language variants */
 821                 global $wgDisableLangConversion, $wgContLang, $wgTitle;
 822                 $variants = $wgContLang->getVariants();
 823                 if( !$wgDisableLangConversion && sizeof( $variants ) > 1 ) {
 824                         foreach( $variants as $code ) {
 825                                 $varname = $wgContLang->getVariantname( $code );
 826                                 if( $varname == 'disable' )
 827                                         continue;
 828                                 $s .= ' | <a href="' . $wgTitle->getLocalUrl( 'variant=' . $code ) . '">' . $varname . '</a>';
 829                         }
 830                 }
 831
 832                 return $s;
 833         }
 834
 835         function bottomLinks() {
 836                 global $wgOut, $wgUser, $wgTitle, $wgUseTrackbacks;
 837                 $sep = " |\n";
 838
 839                 $s = '';
 840                 if ( $wgOut->isArticleRelated() ) {
 841                         $s .= '<strong>' . $this->editThisPage() . '</strong>';
 842                         if ( $wgUser->isLoggedIn() ) {
 843                                 $s .= $sep . $this->watchThisPage();
 844                         }
 845                         $s .= $sep . $this->talkLink()
 846                           . $sep . $this->historyLink()
 847                           . $sep . $this->whatLinksHere()
 848                           . $sep . $this->watchPageLinksLink();
 849
 850                         if ($wgUseTrackbacks)
 851                                 $s .= $sep . $this->trackbackLink();
 852
 853                         if ( $wgTitle->getNamespace() == NS_USER
 854                             || $wgTitle->getNamespace() == NS_USER_TALK )
 855
 856                         {
 857                                 $id=User::idFromName($wgTitle->getText());
 858                                 $ip=User::isIP($wgTitle->getText());
 859
 860                                 if($id || $ip) { # both anons and non-anons have contri list
 861                                         $s .= $sep . $this->userContribsLink();
 862                                 }
 863                                 if( $this->showEmailUser( $id ) ) {
 864                                         $s .= $sep . $this->emailUserLink();
 865                                 }
 866                         }
 867                         if ( $wgTitle->getArticleId() ) {
 868                                 $s .= "\n<br />";
 869                                 if($wgUser->isAllowed('delete')) { $s .= $this->deleteThisPage(); }
 870                                 if($wgUser->isAllowed('protect')) { $s .= $sep . $this->protectThisPage(); }
 871                                 if($wgUser->isAllowed('move')) { $s .= $sep . $this->moveThisPage(); }
 872                         }
 873                         $s .= "<br />\n" . $this->otherLanguages();
 874                 }
 875                 return $s;
 876         }
 877
 878         function pageStats() {
 879                 global $wgOut, $wgLang, $wgArticle, $wgRequest, $wgUser;
 880                 global $wgDisableCounters, $wgMaxCredits, $wgShowCreditsIfMax, $wgTitle, $wgPageShowWatchingUsers;
 881
 882                 extract( $wgRequest->getValues( 'oldid', 'diff' ) );
 883                 if ( ! $wgOut->isArticle() ) { return ''; }
 884                 if ( isset( $oldid ) || isset( $diff ) ) { return ''; }
 885                 if ( 0 == $wgArticle->getID() ) { return ''; }
 886
 887                 $s = '';
 888                 if ( !$wgDisableCounters ) {
 889                         $count = $wgLang->formatNum( $wgArticle->getCount() );
 890                         if ( $count ) {
 891                                 $s = wfMsg( 'viewcount', $count );
 892                         }
 893                 }
 894
 895                 if (isset($wgMaxCredits) && $wgMaxCredits != 0) {
 896                     require_once('Credits.php');
 897                     $s .= ' ' . getCredits($wgArticle, $wgMaxCredits, $wgShowCreditsIfMax);
 898                 } else {
 899                     $s .= $this->lastModified();
 900                 }
 901
 902                 if ($wgPageShowWatchingUsers && $wgUser->getOption( 'shownumberswatching' )) {
 903                         $dbr =& wfGetDB( DB_SLAVE );
 904                         extract( $dbr->tableNames( 'watchlist' ) );
 905                         $sql = "SELECT COUNT(*) AS n FROM $watchlist
 906                                 WHERE wl_title='" . $dbr->strencode($wgTitle->getDBKey()) .
 907                                 "' AND  wl_namespace=" . $wgTitle->getNamespace() ;
 908                         $res = $dbr->query( $sql, 'Skin::pageStats');
 909                         $x = $dbr->fetchObject( $res );
 910                         $s .= ' ' . wfMsg('number_of_watching_users_pageview', $x->n );
 911                 }
 912
 913                 return $s . ' ' .  $this->getCopyright();
 914         }
 915
 916         function getCopyright( $type = 'detect' ) {
 917                 global $wgRightsPage, $wgRightsUrl, $wgRightsText, $wgRequest;
 918
 919                 if ( $type == 'detect' ) {
 920                         $oldid = $wgRequest->getVal( 'oldid' );
 921                         $diff = $wgRequest->getVal( 'diff' );
 922
 923                         if ( !is_null( $oldid ) && is_null( $diff ) && wfMsgForContent( 'history_copyright' ) !== '-' ) {
 924                                 $type = 'history';
 925                         } else {
 926                                 $type = 'normal';
 927                         }
 928                 }
 929
 930                 if ( $type == 'history' ) {
 931                         $msg = 'history_copyright';
 932                 } else {
 933                         $msg = 'copyright';
 934                 }
 935
 936                 $out = '';
 937                 if( $wgRightsPage ) {
 938                         $link = $this->makeKnownLink( $wgRightsPage, $wgRightsText );
 939                 } elseif( $wgRightsUrl ) {
 940                         $link = $this->makeExternalLink( $wgRightsUrl, $wgRightsText );
 941                 } else {
 942                         # Give up now
 943                         return $out;
 944                 }
 945                 $out .= wfMsgForContent( $msg, $link );
 946                 return $out;
 947         }
 948
 949         function getCopyrightIcon() {
 950                 global $wgRightsUrl, $wgRightsText, $wgRightsIcon, $wgCopyrightIcon;
 951                 $out = '';
 952                 if ( isset( $wgCopyrightIcon ) && $wgCopyrightIcon ) {
 953                         $out = $wgCopyrightIcon;
 954                 } else if ( $wgRightsIcon ) {
 955                         $icon = htmlspecialchars( $wgRightsIcon );
 956                         if ( $wgRightsUrl ) {
 957                                 $url = htmlspecialchars( $wgRightsUrl );
 958                                 $out .= '<a href="'.$url.'">';
 959                         }
 960                         $text = htmlspecialchars( $wgRightsText );
 961                         $out .= "<img src=\"$icon\" alt='$text' />";
 962                         if ( $wgRightsUrl ) {
 963                                 $out .= '</a>';
 964                         }
 965                 }
 966                 return $out;
 967         }
 968
 969         function getPoweredBy() {
 970                 global $wgStylePath;
 971                 $url = htmlspecialchars( "$wgStylePath/common/images/poweredby_mediawiki_88x31.png" );
 972                 $img = '<a href="http://www.mediawiki.org/"><img src="'.$url.'" alt="MediaWiki" /></a>';
 973                 return $img;
 974         }
 975
 976         function lastModified() {
 977                 global $wgLang, $wgArticle, $wgLoadBalancer;
 978
 979                 $timestamp = $wgArticle->getTimestamp();
 980                 if ( $timestamp ) {
 981                         $d = $wgLang->timeanddate( $timestamp, true );
 982                         $s = ' ' . wfMsg( 'lastmodified', $d );
 983                 } else {
 984                         $s = '';
 985                 }
 986                 if ( $wgLoadBalancer->getLaggedSlaveMode() ) {
 987                         $s .= ' <strong>' . wfMsg( 'laggedslavemode' ) . '</strong>';
 988                 }
 989                 return $s;
 990         }
 991
 992         function logoText( $align = '' ) {
 993                 if ( '' != $align ) { $a = " align='{$align}'"; }
 994                 else { $a = ''; }
 995
 996                 $mp = wfMsg( 'mainpage' );
 997                 $titleObj = Title::newFromText( $mp );
 998                 if ( is_object( $titleObj ) ) {
 999                         $url = $titleObj->escapeLocalURL();
1000                 } else {
1001                         $url = '';
1002                 }
1003
1004                 $logourl = $this->getLogo();
1005                 $s = "<a href='{$url}'><img{$a} src='{$logourl}' alt='[{$mp}]' /></a>";
1006                 return $s;
1007         }
1008
1009         /**
1010          * show a drop-down box of special pages
1011          * @TODO crash bug913. Need to be rewrote completly.
1012          */
1013         function specialPagesList() {
1014                 global $wgUser, $wgContLang, $wgServer, $wgRedirectScript, $wgAvailableRights;
1015                 require_once('SpecialPage.php');
1016                 $a = array();
1017                 $pages = SpecialPage::getPages();
1018
1019                 // special pages without access restriction
1020                 foreach ( $pages[''] as $name => $page ) {
1021                         $a[$name] = $page->getDescription();
1022                 }
1023
1024                 // Other special pages that are restricted.
1025                 // Copied from SpecialSpecialpages.php
1026                 foreach($wgAvailableRights as $right) {
1027                         if( $wgUser->isAllowed($right) ) {
1028                                 /** Add all pages for this right */
1029                                 if(isset($pages[$right])) {
1030                                         foreach($pages[$right] as $name => $page) {
1031                                         $a[$name] = $page->getDescription();
1032                                         }
1033                                 }
1034                         }
1035                 }
1036
1037                 $go = wfMsg( 'go' );
1038                 $sp = wfMsg( 'specialpages' );
1039                 $spp = $wgContLang->specialPage( 'Specialpages' );
1040
1041                 $s = '<form id="specialpages" method="get" class="inline" ' .
1042                   'action="' . htmlspecialchars( "{$wgServer}{$wgRedirectScript}" ) . "\">\n";
1043                 $s .= "<select name=\"wpDropdown\">\n";
1044                 $s .= "<option value=\"{$spp}\">{$sp}</option>\n";
1045
1046
1047                 foreach ( $a as $name => $desc ) {
1048                         $p = $wgContLang->specialPage( $name );
1049                         $s .= "<option value=\"{$p}\">{$desc}</option>\n";
1050                 }
1051                 $s .= "</select>\n";
1052                 $s .= "<input type='submit' value=\"{$go}\" name='redirect' />\n";
1053                 $s .= "</form>\n";
1054                 return $s;
1055         }
1056
1057         function mainPageLink() {
1058                 $mp = wfMsgForContent( 'mainpage' );
1059                 $mptxt = wfMsg( 'mainpage');
1060                 $s = $this->makeKnownLink( $mp, $mptxt );
1061                 return $s;
1062         }
1063
1064         function copyrightLink() {
1065                 $s = $this->makeKnownLink( wfMsgForContent( 'copyrightpage' ),
1066                   wfMsg( 'copyrightpagename' ) );
1067                 return $s;
1068         }
1069
1070         function privacyLink() {
1071                 $privacy = wfMsg( 'privacy' );
1072                 if ($privacy == '-') {
1073                         return '';
1074                 } else {
1075                         return $this->makeKnownLink( wfMsgForContent( 'privacypage' ), $privacy);
1076                 }
1077         }
1078
1079         function aboutLink() {
1080                 $s = $this->makeKnownLink( wfMsgForContent( 'aboutpage' ),
1081                   wfMsg( 'aboutsite' ) );
1082                 return $s;
1083         }
1084
1085         function disclaimerLink() {
1086                 $disclaimers = wfMsg( 'disclaimers' );
1087                 if ($disclaimers == '-') {
1088                         return '';
1089                 } else {
1090                         return $this->makeKnownLink( wfMsgForContent( 'disclaimerpage' ),
1091                                                      $disclaimers );
1092                 }
1093         }
1094
1095         function editThisPage() {
1096                 global $wgOut, $wgTitle;
1097
1098                 if ( ! $wgOut->isArticleRelated() ) {
1099                         $s = wfMsg( 'protectedpage' );
1100                 } else {
1101                         if ( $wgTitle->userCanEdit() ) {
1102                                 $t = wfMsg( 'editthispage' );
1103                         } else {
1104                                 $t = wfMsg( 'viewsource' );
1105                         }
1106
1107                         $s = $this->makeKnownLinkObj( $wgTitle, $t, $this->editUrlOptions() );
1108                 }
1109                 return $s;
1110         }
1111
1112         /**
1113          * Return URL options for the 'edit page' link.
1114          * This may include an 'oldid' specifier, if the current page view is such.
1115          *
1116          * @return string
1117          * @access private
1118          */
1119         function editUrlOptions() {
1120                 global $wgArticle;
1121
1122                 if( $this->mRevisionId && ! $wgArticle->isCurrent() ) {
1123                         return "action=edit&oldid=" . intval( $this->mRevisionId );
1124                 } else {
1125                         return "action=edit";
1126                 }
1127         }
1128
1129         function deleteThisPage() {
1130                 global $wgUser, $wgTitle, $wgRequest;
1131
1132                 $diff = $wgRequest->getVal( 'diff' );
1133                 if ( $wgTitle->getArticleId() && ( ! $diff ) && $wgUser->isAllowed('delete') ) {
1134                         $t = wfMsg( 'deletethispage' );
1135
1136                         $s = $this->makeKnownLinkObj( $wgTitle, $t, 'action=delete' );
1137                 } else {
1138                         $s = '';
1139                 }
1140                 return $s;
1141         }
1142
1143         function protectThisPage() {
1144                 global $wgUser, $wgTitle, $wgRequest;
1145
1146                 $diff = $wgRequest->getVal( 'diff' );
1147                 if ( $wgTitle->getArticleId() && ( ! $diff ) && $wgUser->isAllowed('protect') ) {
1148                         if ( $wgTitle->isProtected() ) {
1149                                 $t = wfMsg( 'unprotectthispage' );
1150                                 $q = 'action=unprotect';
1151                         } else {
1152                                 $t = wfMsg( 'protectthispage' );
1153                                 $q = 'action=protect';
1154                         }
1155                         $s = $this->makeKnownLinkObj( $wgTitle, $t, $q );
1156                 } else {
1157                         $s = '';
1158                 }
1159                 return $s;
1160         }
1161
1162         function watchThisPage() {
1163                 global $wgOut, $wgTitle;
1164
1165                 if ( $wgOut->isArticleRelated() ) {
1166                         if ( $wgTitle->userIsWatching() ) {
1167                                 $t = wfMsg( 'unwatchthispage' );
1168                                 $q = 'action=unwatch';
1169                         } else {
1170                                 $t = wfMsg( 'watchthispage' );
1171                                 $q = 'action=watch';
1172                         }
1173                         $s = $this->makeKnownLinkObj( $wgTitle, $t, $q );
1174                 } else {
1175                         $s = wfMsg( 'notanarticle' );
1176                 }
1177                 return $s;
1178         }
1179
1180         function moveThisPage() {
1181                 global $wgTitle;
1182
1183                 if ( $wgTitle->userCanMove() ) {
1184                         return $this->makeKnownLinkObj( Title::makeTitle( NS_SPECIAL, 'Movepage' ),
1185                           wfMsg( 'movethispage' ), 'target=' . $wgTitle->getPrefixedURL() );
1186                 } else {
1187                         // no message if page is protected - would be redundant
1188                         return '';
1189                 }
1190         }
1191
1192         function historyLink() {
1193                 global $wgTitle;
1194
1195                 return $this->makeKnownLinkObj( $wgTitle,
1196                   wfMsg( 'history' ), 'action=history' );
1197         }
1198
1199         function whatLinksHere() {
1200                 global $wgTitle;
1201
1202                 return $this->makeKnownLinkObj( Title::makeTitle( NS_SPECIAL, 'Whatlinkshere' ),
1203                   wfMsg( 'whatlinkshere' ), 'target=' . $wgTitle->getPrefixedURL() );
1204         }
1205
1206         function userContribsLink() {
1207                 global $wgTitle;
1208
1209                 return $this->makeKnownLinkObj( Title::makeTitle( NS_SPECIAL, 'Contributions' ),
1210                   wfMsg( 'contributions' ), 'target=' . $wgTitle->getPartialURL() );
1211         }
1212
1213         function showEmailUser( $id ) {
1214                 global $wgEnableEmail, $wgEnableUserEmail, $wgUser;
1215                 return $wgEnableEmail &&
1216                        $wgEnableUserEmail &&
1217                        $wgUser->isLoggedIn() && # show only to signed in users
1218                        0 != $id; # we can only email to non-anons ..
1219 #                      '' != $id->getEmail() && # who must have an email address stored ..
1220 #                      0 != $id->getEmailauthenticationtimestamp() && # .. which is authenticated
1221 #                      1 != $wgUser->getOption('disablemail'); # and not disabled
1222         }
1223
1224         function emailUserLink() {
1225                 global $wgTitle;
1226
1227                 return $this->makeKnownLinkObj( Title::makeTitle( NS_SPECIAL, 'Emailuser' ),
1228                   wfMsg( 'emailuser' ), 'target=' . $wgTitle->getPartialURL() );
1229         }
1230
1231         function watchPageLinksLink() {
1232                 global $wgOut, $wgTitle;
1233
1234                 if ( ! $wgOut->isArticleRelated() ) {
1235                         return '(' . wfMsg( 'notanarticle' ) . ')';
1236                 } else {
1237                         return $this->makeKnownLinkObj( Title::makeTitle( NS_SPECIAL,
1238                           'Recentchangeslinked' ), wfMsg( 'recentchangeslinked' ),
1239                           'target=' . $wgTitle->getPrefixedURL() );
1240                 }
1241         }
1242
1243         function trackbackLink() {
1244                 global $wgTitle;
1245
1246                 return "<a href=\"" . $wgTitle->trackbackURL() . "\">"
1247                         . wfMsg('trackbacklink') . "</a>";
1248         }
1249
1250         function otherLanguages() {
1251                 global $wgOut, $wgContLang, $wgHideInterlanguageLinks;
1252
1253                 if ( $wgHideInterlanguageLinks ) {
1254                         return '';
1255                 }
1256
1257                 $a = $wgOut->getLanguageLinks();
1258                 if ( 0 == count( $a ) ) {
1259                         return '';
1260                 }
1261
1262                 $s = wfMsg( 'otherlanguages' ) . ': ';
1263                 $first = true;
1264                 if($wgContLang->isRTL()) $s .= '<span dir="LTR">';
1265                 foreach( $a as $l ) {
1266                         if ( ! $first ) { $s .= ' | '; }
1267                         $first = false;
1268
1269                         $nt = Title::newFromText( $l );
1270                         $url = $nt->escapeFullURL();
1271                         $text = $wgContLang->getLanguageName( $nt->getInterwiki() );
1272
1273                         if ( '' == $text ) { $text = $l; }
1274                         $style = $this->getExternalLinkAttributes( $l, $text );
1275                         $s .= "<a href=\"{$url}\"{$style}>{$text}</a>";
1276                 }
1277                 if($wgContLang->isRTL()) $s .= '</span>';
1278                 return $s;
1279         }
1280
1281         function bugReportsLink() {
1282                 $s = $this->makeKnownLink( wfMsgForContent( 'bugreportspage' ),
1283                   wfMsg( 'bugreports' ) );
1284                 return $s;
1285         }
1286
1287         function dateLink() {
1288                 $t1 = Title::newFromText( gmdate( 'F j' ) );
1289                 $t2 = Title::newFromText( gmdate( 'Y' ) );
1290
1291                 $id = $t1->getArticleID();
1292
1293                 if ( 0 == $id ) {
1294                         $s = $this->makeBrokenLink( $t1->getText() );
1295                 } else {
1296                         $s = $this->makeKnownLink( $t1->getText() );
1297                 }
1298                 $s .= ', ';
1299
1300                 $id = $t2->getArticleID();
1301
1302                 if ( 0 == $id ) {
1303                         $s .= $this->makeBrokenLink( $t2->getText() );
1304                 } else {
1305                         $s .= $this->makeKnownLink( $t2->getText() );
1306                 }
1307                 return $s;
1308         }
1309
1310         function talkLink() {
1311                 global $wgTitle;
1312
1313                 if ( NS_SPECIAL == $wgTitle->getNamespace() ) {
1314                         # No discussion links for special pages
1315                         return '';
1316                 }
1317
1318                 if( $wgTitle->isTalkPage() ) {
1319                         $link = $wgTitle->getSubjectPage();
1320                         switch( $link->getNamespace() ) {
1321                         case NS_MAIN:
1322                                 $text = wfMsg('articlepage');
1323                                 break;
1324                         case NS_USER:
1325                                 $text = wfMsg('userpage');
1326                                 break;
1327                         case NS_PROJECT:
1328                                 $text = wfMsg('wikipediapage');
1329                                 break;
1330                         case NS_IMAGE:
1331                                 $text = wfMsg('imagepage');
1332                                 break;
1333                         default:
1334                                 $text= wfMsg('articlepage');
1335                         }
1336                 } else {
1337                         $link = $wgTitle->getTalkPage();
1338                         $text = wfMsg( 'talkpage' );
1339                 }
1340
1341                 $s = $this->makeLinkObj( $link, $text );
1342
1343                 return $s;
1344         }
1345
1346         function commentLink() {
1347                 global $wgTitle;
1348
1349                 if ( $wgTitle->getNamespace() == NS_SPECIAL ) {
1350                         return '';
1351                 }
1352                 return $this->makeKnownLinkObj( $wgTitle->getTalkPage(),
1353                         wfMsg( 'postcomment' ), 'action=edit&section=new' );
1354         }
1355
1356         /* these are used extensively in SkinTemplate, but also some other places */
1357         /*static*/ function makeSpecialUrl( $name, $urlaction='' ) {
1358                 $title = Title::makeTitle( NS_SPECIAL, $name );
1359                 return $title->getLocalURL( $urlaction );
1360         }
1361
1362         /*static*/ function makeI18nUrl ( $name, $urlaction='' ) {
1363                 $title = Title::newFromText( wfMsgForContent($name) );
1364                 $this->checkTitle($title, $name);
1365                 return $title->getLocalURL( $urlaction );
1366         }
1367
1368         /*static*/ function makeUrl ( $name, $urlaction='' ) {
1369                 $title = Title::newFromText( $name );
1370                 $this->checkTitle($title, $name);
1371                 return $title->getLocalURL( $urlaction );
1372         }
1373
1374         # If url string starts with http, consider as external URL, else
1375         # internal
1376         /*static*/ function makeInternalOrExternalUrl( $name ) {
1377                 if ( preg_match( '/^(?:' . wfUrlProtocols() . ')/', $name ) ) {
1378                         return $name;
1379                 } else {
1380                         return $this->makeUrl( $name );
1381                 }
1382         }
1383
1384         # this can be passed the NS number as defined in Language.php
1385         /*static*/ function makeNSUrl( $name, $urlaction='', $namespace=NS_MAIN ) {
1386                 $title = Title::makeTitleSafe( $namespace, $name );
1387                 $this->checkTitle($title, $name);
1388                 return $title->getLocalURL( $urlaction );
1389         }
1390
1391         /* these return an array with the 'href' and boolean 'exists' */
1392         /*static*/ function makeUrlDetails ( $name, $urlaction='' ) {
1393                 $title = Title::newFromText( $name );
1394                 $this->checkTitle($title, $name);
1395                 return array(
1396                         'href' => $title->getLocalURL( $urlaction ),
1397                         'exists' => $title->getArticleID() != 0?true:false
1398                 );
1399         }
1400
1401         /**
1402          * Make URL details where the article exists (or at least it's convenient to think so)
1403          */
1404         function makeKnownUrlDetails( $name, $urlaction='' ) {
1405                 $title = Title::newFromText( $name );
1406                 $this->checkTitle($title, $name);
1407                 return array(
1408                         'href' => $title->getLocalURL( $urlaction ),
1409                         'exists' => true
1410                 );
1411         }
1412
1413         # make sure we have some title to operate on
1414         /*static*/ function checkTitle ( &$title, &$name ) {
1415                 if(!is_object($title)) {
1416                         $title = Title::newFromText( $name );
1417                         if(!is_object($title)) {
1418                                 $title = Title::newFromText( '--error: link target missing--' );
1419                         }
1420                 }
1421         }
1422
1423         /**
1424          * Build an array that represents the sidebar(s), the navigation bar among them
1425          *
1426          * @return array
1427          * @access private
1428          */
1429         function buildSidebar() {
1430                 global $wgDBname, $parserMemc;
1431                 global $wgLanguageCode, $wgContLanguageCode;
1432
1433                 $fname = 'SkinTemplate::buildSidebar';
1434
1435                 wfProfileIn( $fname );
1436
1437                 if ($wgLanguageCode == $wgContLanguageCode)
1438                         $cacheSidebar = true;
1439                 else
1440                         $cacheSidebar = false;
1441
1442                 if ($cacheSidebar) {
1443                         $cachedsidebar=$parserMemc->get("{$wgDBname}:sidebar");
1444                         if ($cachedsidebar!="") {
1445                                 wfProfileOut($fname);
1446                                 return $cachedsidebar;
1447                         }
1448                 }
1449
1450                 $bar = array();
1451                 $lines = explode( "\n", wfMsgForContent( 'sidebar' ) );
1452                 foreach ($lines as $line) {
1453                         if (strpos($line, '*') !== 0)
1454                                 continue;
1455                         if (strpos($line, '**') !== 0) {
1456                                 $line = trim($line, '* ');
1457                                 $heading = $line;
1458                         } else {
1459                                 if (strpos($line, '|') !== false) { // sanity check
1460                                         $line = explode( '|' , trim($line, '* '), 2 );
1461                                         $link = wfMsgForContent( $line[0] );
1462                                         if ($link == '-')
1463                                                 continue;
1464                                         if (wfEmptyMsg($line[1], $text = wfMsg($line[1])))
1465                                                 $text = $line[1];
1466                                         if (wfEmptyMsg($line[0], $link))
1467                                                 $link = $line[0];
1468                                         $href = $this->makeInternalOrExternalUrl( $link );
1469                                         $bar[$heading][] = array(
1470                                                 'text' => $text,
1471                                                 'href' => $href,
1472                                                 'id' => 'n-' . strtr($line[1], ' ', '-'),
1473                                                 'active' => false
1474                                         );
1475                                 } else { continue; }
1476                         }
1477                 }
1478                 if ($cacheSidebar)
1479                         $cachednotice=$parserMemc->set("{$wgDBname}:sidebar",$bar,86400);
1480                 wfProfileOut( $fname );
1481                 return $bar;
1482         }
1483 }
1484 ?>