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 available 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( $wgStyleDirectory );
  21
  22 # while code from www.php.net
  23 while (false !== ($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          * @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          * @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, $wgLang, $wgContLang, $wgSquidMaxage;
 301                 $sheet = $this->getStylesheet();
 302                 $action = $wgRequest->getText('action');
 303                 $s = "@import \"$wgStylePath/$sheet\";\n";
 304                 if($wgLang->isRTL()) $s .= "@import \"$wgStylePath/common/common_rtl.css\";\n";
 305                 if($wgContLang->isRTL()) $s .= "@import \"$wgStylePath/common/common_content_rtl.css\";\n";
 306
 307                 $query = "action=raw&ctype=text/css&smaxage=$wgSquidMaxage";
 308                 $s .= '@import "' . $this->makeNSUrl( 'Common.css', $query, NS_MEDIAWIKI ) . "\";\n" .
 309                         '@import "'.$this->makeNSUrl( ucfirst( $this->getSkinName() . '.css' ), $query, NS_MEDIAWIKI ) . "\";\n";
 310
 311                 $s .= $this->doGetUserStyles();
 312                 return $s."\n";
 313         }
 314
 315         /**
 316          * placeholder, returns generated js in monobook
 317          */
 318         function getUserJs() { return; }
 319
 320         /**
 321          * Return html code that include User stylesheets
 322          */
 323         function getUserStyles() {
 324                 $s = "<style type='text/css'>\n";
 325                 $s .= "/*/*/ /*<![CDATA[*/\n"; # <-- Hide the styles from Netscape 4 without hiding them from IE/Mac
 326                 $s .= $this->getUserStylesheet();
 327                 $s .= "/*]]>*/ /* */\n";
 328                 $s .= "</style>\n";
 329                 return $s;
 330         }
 331
 332         /**
 333          * Some styles that are set by user through the user settings interface.
 334          */
 335         function doGetUserStyles() {
 336                 global $wgUser, $wgUser, $wgRequest, $wgTitle, $wgAllowUserCss;
 337
 338                 $s = '';
 339
 340                 if( $wgAllowUserCss && $wgUser->isLoggedIn() ) { # logged in
 341                         if($wgTitle->isCssSubpage() && $this->userCanPreview( $wgRequest->getText( 'action' ) ) ) {
 342                                 $s .= $wgRequest->getText('wpTextbox1');
 343                         } else {
 344                                 $userpage = $wgUser->getUserPage();
 345                                 $s.= '@import "'.$this->makeUrl(
 346                                         $userpage->getPrefixedText().'/'.$this->getSkinName().'.css',
 347                                         'action=raw&ctype=text/css').'";'."\n";
 348                         }
 349                 }
 350
 351                 return $s . $this->reallyDoGetUserStyles();
 352         }
 353
 354         function reallyDoGetUserStyles() {
 355                 global $wgUser;
 356                 $s = '';
 357                 if (($undopt = $wgUser->getOption("underline")) != 2) {
 358                         $underline = $undopt ? 'underline' : 'none';
 359                         $s .= "a { text-decoration: $underline; }\n";
 360                 }
 361                 if( $wgUser->getOption( 'highlightbroken' ) ) {
 362                         $s .= "a.new, #quickbar a.new { color: #CC2200; }\n";
 363                 } else {
 364                         $s .= <<<END
 365 a.new, #quickbar a.new,
 366 a.stub, #quickbar a.stub {
 367         color: inherit;
 368         text-decoration: inherit;
 369 }
 370 a.new:after, #quickbar a.new:after {
 371         content: "?";
 372         color: #CC2200;
 373         text-decoration: $underline;
 374 }
 375 a.stub:after, #quickbar a.stub:after {
 376         content: "!";
 377         color: #772233;
 378         text-decoration: $underline;
 379 }
 380 END;
 381                 }
 382                 if( $wgUser->getOption( 'justify' ) ) {
 383                         $s .= "#article, #bodyContent { text-align: justify; }\n";
 384                 }
 385                 if( !$wgUser->getOption( 'showtoc' ) ) {
 386                         $s .= "#toc { display: none; }\n";
 387                 }
 388                 if( !$wgUser->getOption( 'editsection' ) ) {
 389                         $s .= ".editsection { display: none; }\n";
 390                 }
 391                 return $s;
 392         }
 393
 394         function getBodyOptions() {
 395                 global $wgUser, $wgTitle, $wgOut, $wgRequest;
 396
 397                 extract( $wgRequest->getValues( 'oldid', 'redirect', 'diff' ) );
 398
 399                 if ( 0 != $wgTitle->getNamespace() ) {
 400                         $a = array( 'bgcolor' => '#ffffec' );
 401                 }
 402                 else $a = array( 'bgcolor' => '#FFFFFF' );
 403                 if($wgOut->isArticle() && $wgUser->getOption('editondblclick') &&
 404                   $wgTitle->userCanEdit() ) {
 405                         $t = wfMsg( 'editthispage' );
 406                         $s = $wgTitle->getFullURL( $this->editUrlOptions() );
 407                         $s = 'document.location = "' .wfEscapeJSString( $s ) .'";';
 408                         $a += array ('ondblclick' => $s);
 409
 410                 }
 411                 $a['onload'] = $wgOut->getOnloadHandler();
 412                 if( $wgUser->getOption( 'editsectiononrightclick' ) ) {
 413                         if( $a['onload'] != '' ) {
 414                                 $a['onload'] .= ';';
 415                         }
 416                         $a['onload'] .= 'setupRightClickEdit()';
 417                 }
 418                 return $a;
 419         }
 420
 421         /**
 422          * URL to the logo
 423          */
 424         function getLogo() {
 425                 global $wgLogo;
 426                 return $wgLogo;
 427         }
 428
 429         /**
 430          * This will be called immediately after the <body> tag.  Split into
 431          * two functions to make it easier to subclass.
 432          */
 433         function beforeContent() {
 434                 return $this->doBeforeContent();
 435         }
 436
 437         function doBeforeContent() {
 438                 global $wgLang;
 439                 $fname = 'Skin::doBeforeContent';
 440                 wfProfileIn( $fname );
 441
 442                 $s = '';
 443                 $qb = $this->qbSetting();
 444
 445                 if( $langlinks = $this->otherLanguages() ) {
 446                         $rows = 2;
 447                         $borderhack = '';
 448                 } else {
 449                         $rows = 1;
 450                         $langlinks = false;
 451                         $borderhack = 'class="top"';
 452                 }
 453
 454                 $s .= "\n<div id='content'>\n<div id='topbar'>\n" .
 455                   "<table border='0' cellspacing='0' width='98%'>\n<tr>\n";
 456
 457                 $shove = ($qb != 0);
 458                 $left = ($qb == 1 || $qb == 3);
 459                 if($wgLang->isRTL()) $left = !$left;
 460
 461                 if ( !$shove ) {
 462                         $s .= "<td class='top' align='left' valign='top' rowspan='{$rows}'>\n" .
 463                           $this->logoText() . '</td>';
 464                 } elseif( $left ) {
 465                         $s .= $this->getQuickbarCompensator( $rows );
 466                 }
 467                 $l = $wgLang->isRTL() ? 'right' : 'left';
 468                 $s .= "<td {$borderhack} align='$l' valign='top'>\n";
 469
 470                 $s .= $this->topLinks() ;
 471                 $s .= "<p class='subtitle'>" . $this->pageTitleLinks() . "</p>\n";
 472
 473                 $r = $wgLang->isRTL() ? "left" : "right";
 474                 $s .= "</td>\n<td {$borderhack} valign='top' align='$r' nowrap='nowrap'>";
 475                 $s .= $this->nameAndLogin();
 476                 $s .= "\n<br />" . $this->searchForm() . "</td>";
 477
 478                 if ( $langlinks ) {
 479                         $s .= "</tr>\n<tr>\n<td class='top' colspan=\"2\">$langlinks</td>\n";
 480                 }
 481
 482                 if ( $shove && !$left ) { # Right
 483                         $s .= $this->getQuickbarCompensator( $rows );
 484                 }
 485                 $s .= "</tr>\n</table>\n</div>\n";
 486                 $s .= "\n<div id='article'>\n";
 487
 488                 $notice = wfGetSiteNotice();
 489                 if( $notice ) {
 490                         $s .= "\n<div id='siteNotice'>$notice</div>\n";
 491                 }
 492                 $s .= $this->pageTitle();
 493                 $s .= $this->pageSubtitle() ;
 494                 $s .= $this->getCategories();
 495                 wfProfileOut( $fname );
 496                 return $s;
 497         }
 498
 499
 500         function getCategoryLinks () {
 501                 global $wgOut, $wgTitle, $wgUseCategoryBrowser;
 502                 global $wgContLang;
 503
 504                 if( count( $wgOut->mCategoryLinks ) == 0 ) return '';
 505
 506                 # Separator
 507                 $sep = wfMsgHtml( 'catseparator' );
 508
 509                 // Use Unicode bidi embedding override characters,
 510                 // to make sure links don't smash each other up in ugly ways.
 511                 $dir = $wgContLang->isRTL() ? 'rtl' : 'ltr';
 512                 $embed = "<span dir='$dir'>";
 513                 $pop = '</span>';
 514                 $t = $embed . implode ( "{$pop} {$sep} {$embed}" , $wgOut->mCategoryLinks ) . $pop;
 515
 516                 $msg = wfMsgExt('categories', array('parsemag', 'escape'), count( $wgOut->mCategoryLinks ));
 517                 $s = $this->makeKnownLinkObj( Title::makeTitle( NS_SPECIAL, 'Categories' ),
 518                         $msg, 'article=' . urlencode( $wgTitle->getPrefixedDBkey() ) )
 519                         . ': ' . $t;
 520
 521                 # optional 'dmoz-like' category browser. Will be shown under the list
 522                 # of categories an article belong to
 523                 if($wgUseCategoryBrowser) {
 524                         $s .= '<br /><hr />';
 525
 526                         # get a big array of the parents tree
 527                         $parenttree = $wgTitle->getParentCategoryTree();
 528                         # Skin object passed by reference cause it can not be
 529                         # accessed under the method subfunction drawCategoryBrowser
 530                         $tempout = explode("\n", Skin::drawCategoryBrowser($parenttree, $this) );
 531                         # Clean out bogus first entry and sort them
 532                         unset($tempout[0]);
 533                         asort($tempout);
 534                         # Output one per line
 535                         $s .= implode("<br />\n", $tempout);
 536                 }
 537
 538                 return $s;
 539         }
 540
 541         /** Render the array as a serie of links.
 542          * @param $tree Array: categories tree returned by Title::getParentCategoryTree
 543          * @param &skin Object: skin passed by reference
 544          * @return String separated by &gt;, terminate with "\n"
 545          */
 546         function drawCategoryBrowser($tree, &$skin) {
 547                 $return = '';
 548                 foreach ($tree as $element => $parent) {
 549                         if (empty($parent)) {
 550                                 # element start a new list
 551                                 $return .= "\n";
 552                         } else {
 553                                 # grab the others elements
 554                                 $return .= Skin::drawCategoryBrowser($parent, $skin) . ' &gt; ';
 555                         }
 556                         # add our current element to the list
 557                         $eltitle = Title::NewFromText($element);
 558                         $return .=  $skin->makeLinkObj( $eltitle, $eltitle->getText() ) ;
 559                 }
 560                 return $return;
 561         }
 562
 563         function getCategories() {
 564                 $catlinks=$this->getCategoryLinks();
 565                 if(!empty($catlinks)) {
 566                         return "<p class='catlinks'>{$catlinks}</p>";
 567                 }
 568         }
 569
 570         function getQuickbarCompensator( $rows = 1 ) {
 571                 return "<td width='152' rowspan='{$rows}'>&nbsp;</td>";
 572         }
 573
 574         /**
 575          * This gets called immediately before the \</body\> tag.
 576          * @return String HTML to be put after \</body\> ???
 577          */
 578         function afterContent() {
 579                 $printfooter = "<div class=\"printfooter\">\n" . $this->printFooter() . "</div>\n";
 580                 return $printfooter . $this->doAfterContent();
 581         }
 582
 583         /** @return string Retrievied from HTML text */
 584         function printSource() {
 585                 global $wgTitle;
 586                 $url = htmlspecialchars( $wgTitle->getFullURL() );
 587                 return wfMsg( 'retrievedfrom', '<a href="'.$url.'">'.$url.'</a>' );
 588         }
 589
 590         function printFooter() {
 591                 return "<p>" .  $this->printSource() .
 592                         "</p>\n\n<p>" . $this->pageStats() . "</p>\n";
 593         }
 594
 595         /** overloaded by derived classes */
 596         function doAfterContent() { }
 597
 598         function pageTitleLinks() {
 599                 global $wgOut, $wgTitle, $wgUser, $wgRequest;
 600
 601                 extract( $wgRequest->getValues( 'oldid', 'diff' ) );
 602                 $action = $wgRequest->getText( 'action' );
 603
 604                 $s = $this->printableLink();
 605                 $disclaimer = $this->disclaimerLink(); # may be empty
 606                 if( $disclaimer ) {
 607                         $s .= ' | ' . $disclaimer;
 608                 }
 609                 $privacy = $this->privacyLink(); # may be empty too
 610                 if( $privacy ) {
 611                         $s .= ' | ' . $privacy;
 612                 }
 613
 614                 if ( $wgOut->isArticleRelated() ) {
 615                         if ( $wgTitle->getNamespace() == NS_IMAGE ) {
 616                                 $name = $wgTitle->getDBkey();
 617                                 $image = new Image( $wgTitle );
 618                                 if( $image->exists() ) {
 619                                         $link = htmlspecialchars( $image->getURL() );
 620                                         $style = $this->getInternalLinkAttributes( $link, $name );
 621                                         $s .= " | <a href=\"{$link}\"{$style}>{$name}</a>";
 622                                 }
 623                         }
 624                 }
 625                 if ( 'history' == $action || isset( $diff ) || isset( $oldid ) ) {
 626                         $s .= ' | ' . $this->makeKnownLinkObj( $wgTitle,
 627                                         wfMsg( 'currentrev' ) );
 628                 }
 629
 630                 if ( $wgUser->getNewtalk() ) {
 631                         # do not show "You have new messages" text when we are viewing our
 632                         # own talk page
 633                         if( !$wgTitle->equals( $wgUser->getTalkPage() ) ) {
 634                                 $tl = $this->makeKnownLinkObj( $wgUser->getTalkPage(), wfMsgHtml( 'newmessageslink' ), 'redirect=no' );
 635                                 $dl = $this->makeKnownLinkObj( $wgUser->getTalkPage(), wfMsgHtml( 'newmessagesdifflink' ), 'diff=cur' );
 636                                 $s.= ' | <strong>'. wfMsg( 'youhavenewmessages', $tl, $dl ) . '</strong>';
 637                                 # disable caching
 638                                 $wgOut->setSquidMaxage(0);
 639                                 $wgOut->enableClientCache(false);
 640                         }
 641                 }
 642
 643                 $undelete = $this->getUndeleteLink();
 644                 if( !empty( $undelete ) ) {
 645                         $s .= ' | '.$undelete;
 646                 }
 647                 return $s;
 648         }
 649
 650         function getUndeleteLink() {
 651                 global $wgUser, $wgTitle, $wgContLang, $action;
 652                 if(     $wgUser->isAllowed( 'deletedhistory' ) &&
 653                         (($wgTitle->getArticleId() == 0) || ($action == "history")) &&
 654                         ($n = $wgTitle->isDeleted() ) )
 655                 {
 656                         if ( $wgUser->isAllowed( 'delete' ) ) {
 657                                 $msg = 'thisisdeleted';
 658                         } else {
 659                                 $msg = 'viewdeleted';
 660                         }
 661                         return wfMsg( $msg,
 662                                 $this->makeKnownLink(
 663                                         $wgContLang->SpecialPage( 'Undelete/' . $wgTitle->getPrefixedDBkey() ),
 664                                         wfMsgExt( 'restorelink', array( 'parsemag', 'escape' ), $n ) ) );
 665                 }
 666                 return '';
 667         }
 668
 669         function printableLink() {
 670                 global $wgOut, $wgFeedClasses, $wgRequest;
 671
 672                 $baseurl = $_SERVER['REQUEST_URI'];
 673                 if( strpos( '?', $baseurl ) == false ) {
 674                         $baseurl .= '?';
 675                 } else {
 676                         $baseurl .= '&';
 677                 }
 678                 $baseurl = htmlspecialchars( $baseurl );
 679                 $printurl = $wgRequest->escapeAppendQuery( 'printable=yes' );
 680
 681                 $s = "<a href=\"$printurl\">" . wfMsg( 'printableversion' ) . '</a>';
 682                 if( $wgOut->isSyndicated() ) {
 683                         foreach( $wgFeedClasses as $format => $class ) {
 684                                 $feedurl = $wgRequest->escapeAppendQuery( "feed=$format" );
 685                                 $s .= " | <a href=\"$feedurl\">{$format}</a>";
 686                         }
 687                 }
 688                 return $s;
 689         }
 690
 691         function pageTitle() {
 692                 global $wgOut;
 693                 $s = '<h1 class="pagetitle">' . htmlspecialchars( $wgOut->getPageTitle() ) . '</h1>';
 694                 return $s;
 695         }
 696
 697         function pageSubtitle() {
 698                 global $wgOut;
 699
 700                 $sub = $wgOut->getSubtitle();
 701                 if ( '' == $sub ) {
 702                         global $wgExtraSubtitle;
 703                         $sub = wfMsg( 'tagline' ) . $wgExtraSubtitle;
 704                 }
 705                 $subpages = $this->subPageSubtitle();
 706                 $sub .= !empty($subpages)?"</p><p class='subpages'>$subpages":'';
 707                 $s = "<p class='subtitle'>{$sub}</p>\n";
 708                 return $s;
 709         }
 710
 711         function subPageSubtitle() {
 712                 global $wgOut,$wgTitle,$wgNamespacesWithSubpages;
 713                 $subpages = '';
 714                 if($wgOut->isArticle() && !empty($wgNamespacesWithSubpages[$wgTitle->getNamespace()])) {
 715                         $ptext=$wgTitle->getPrefixedText();
 716                         if(preg_match('/\//',$ptext)) {
 717                                 $links = explode('/',$ptext);
 718                                 $c = 0;
 719                                 $growinglink = '';
 720                                 foreach($links as $link) {
 721                                         $c++;
 722                                         if ($c<count($links)) {
 723                                                 $growinglink .= $link;
 724                                                 $getlink = $this->makeLink( $growinglink, htmlspecialchars( $link ) );
 725                                                 if(preg_match('/class="new"/i',$getlink)) { break; } # this is a hack, but it saves time
 726                                                 if ($c>1) {
 727                                                         $subpages .= ' | ';
 728                                                 } else  {
 729                                                         $subpages .= '&lt; ';
 730                                                 }
 731                                                 $subpages .= $getlink;
 732                                                 $growinglink .= '/';
 733                                         }
 734                                 }
 735                         }
 736                 }
 737                 return $subpages;
 738         }
 739
 740         function nameAndLogin() {
 741                 global $wgUser, $wgTitle, $wgLang, $wgContLang, $wgShowIPinHeader;
 742
 743                 $li = $wgContLang->specialPage( 'Userlogin' );
 744                 $lo = $wgContLang->specialPage( 'Userlogout' );
 745
 746                 $s = '';
 747                 if ( $wgUser->isAnon() ) {
 748                         if( $wgShowIPinHeader && isset( $_COOKIE[ini_get('session.name')] ) ) {
 749                                 $n = wfGetIP();
 750
 751                                 $tl = $this->makeKnownLinkObj( $wgUser->getTalkPage(),
 752                                   $wgLang->getNsText( NS_TALK ) );
 753
 754                                 $s .= $n . ' ('.$tl.')';
 755                         } else {
 756                                 $s .= wfMsg('notloggedin');
 757                         }
 758
 759                         $rt = $wgTitle->getPrefixedURL();
 760                         if ( 0 == strcasecmp( urlencode( $lo ), $rt ) ) {
 761                                 $q = '';
 762                         } else { $q = "returnto={$rt}"; }
 763
 764                         $s .= "\n<br />" . $this->makeKnownLinkObj(
 765                                 Title::makeTitle( NS_SPECIAL, 'Userlogin' ),
 766                                 wfMsg( 'login' ), $q );
 767                 } else {
 768                         $n = $wgUser->getName();
 769                         $rt = $wgTitle->getPrefixedURL();
 770                         $tl = $this->makeKnownLinkObj( $wgUser->getTalkPage(),
 771                           $wgLang->getNsText( NS_TALK ) );
 772
 773                         $tl = " ({$tl})";
 774
 775                         $s .= $this->makeKnownLinkObj( $wgUser->getUserPage(),
 776                           $n ) . "{$tl}<br />" .
 777                           $this->makeKnownLinkObj( Title::makeTitle( NS_SPECIAL, 'Userlogout' ), wfMsg( 'logout' ),
 778                           "returnto={$rt}" ) . ' | ' .
 779                           $this->specialLink( 'preferences' );
 780                 }
 781                 $s .= ' | ' . $this->makeKnownLink( wfMsgForContent( 'helppage' ),
 782                   wfMsg( 'help' ) );
 783
 784                 return $s;
 785         }
 786
 787         function getSearchLink() {
 788                 $searchPage =& Title::makeTitle( NS_SPECIAL, 'Search' );
 789                 return $searchPage->getLocalURL();
 790         }
 791
 792         function escapeSearchLink() {
 793                 return htmlspecialchars( $this->getSearchLink() );
 794         }
 795
 796         function searchForm() {
 797                 global $wgRequest;
 798                 $search = $wgRequest->getText( 'search' );
 799
 800                 $s = '<form name="search" class="inline" method="post" action="'
 801                   . $this->escapeSearchLink() . "\">\n"
 802                   . '<input type="text" name="search" size="19" value="'
 803                   . htmlspecialchars(substr($search,0,256)) . "\" />\n"
 804                   . '<input type="submit" name="go" value="' . wfMsg ('go') . '" />&nbsp;'
 805                   . '<input type="submit" name="fulltext" value="' . wfMsg ('search') . "\" />\n</form>";
 806
 807                 return $s;
 808         }
 809
 810         function topLinks() {
 811                 global $wgOut;
 812                 $sep = " |\n";
 813
 814                 $s = $this->mainPageLink() . $sep
 815                   . $this->specialLink( 'recentchanges' );
 816
 817                 if ( $wgOut->isArticleRelated() ) {
 818                         $s .=  $sep . $this->editThisPage()
 819                           . $sep . $this->historyLink();
 820                 }
 821                 # Many people don't like this dropdown box
 822                 #$s .= $sep . $this->specialPagesList();
 823
 824                 /* show links to different language variants */
 825                 global $wgDisableLangConversion, $wgContLang, $wgTitle;
 826                 $variants = $wgContLang->getVariants();
 827                 if( !$wgDisableLangConversion && sizeof( $variants ) > 1 ) {
 828                         foreach( $variants as $code ) {
 829                                 $varname = $wgContLang->getVariantname( $code );
 830                                 if( $varname == 'disable' )
 831                                         continue;
 832                                 $s .= ' | <a href="' . $wgTitle->getLocalUrl( 'variant=' . $code ) . '">' . $varname . '</a>';
 833                         }
 834                 }
 835
 836                 return $s;
 837         }
 838
 839         function bottomLinks() {
 840                 global $wgOut, $wgUser, $wgTitle, $wgUseTrackbacks;
 841                 $sep = " |\n";
 842
 843                 $s = '';
 844                 if ( $wgOut->isArticleRelated() ) {
 845                         $s .= '<strong>' . $this->editThisPage() . '</strong>';
 846                         if ( $wgUser->isLoggedIn() ) {
 847                                 $s .= $sep . $this->watchThisPage();
 848                         }
 849                         $s .= $sep . $this->talkLink()
 850                           . $sep . $this->historyLink()
 851                           . $sep . $this->whatLinksHere()
 852                           . $sep . $this->watchPageLinksLink();
 853
 854                         if ($wgUseTrackbacks)
 855                                 $s .= $sep . $this->trackbackLink();
 856
 857                         if ( $wgTitle->getNamespace() == NS_USER
 858                             || $wgTitle->getNamespace() == NS_USER_TALK )
 859
 860                         {
 861                                 $id=User::idFromName($wgTitle->getText());
 862                                 $ip=User::isIP($wgTitle->getText());
 863
 864                                 if($id || $ip) { # both anons and non-anons have contri list
 865                                         $s .= $sep . $this->userContribsLink();
 866                                 }
 867                                 if( $this->showEmailUser( $id ) ) {
 868                                         $s .= $sep . $this->emailUserLink();
 869                                 }
 870                         }
 871                         if ( $wgTitle->getArticleId() ) {
 872                                 $s .= "\n<br />";
 873                                 if($wgUser->isAllowed('delete')) { $s .= $this->deleteThisPage(); }
 874                                 if($wgUser->isAllowed('protect')) { $s .= $sep . $this->protectThisPage(); }
 875                                 if($wgUser->isAllowed('move')) { $s .= $sep . $this->moveThisPage(); }
 876                         }
 877                         $s .= "<br />\n" . $this->otherLanguages();
 878                 }
 879                 return $s;
 880         }
 881
 882         function pageStats() {
 883                 global $wgOut, $wgLang, $wgArticle, $wgRequest, $wgUser;
 884                 global $wgDisableCounters, $wgMaxCredits, $wgShowCreditsIfMax, $wgTitle, $wgPageShowWatchingUsers;
 885
 886                 extract( $wgRequest->getValues( 'oldid', 'diff' ) );
 887                 if ( ! $wgOut->isArticle() ) { return ''; }
 888                 if ( isset( $oldid ) || isset( $diff ) ) { return ''; }
 889                 if ( 0 == $wgArticle->getID() ) { return ''; }
 890
 891                 $s = '';
 892                 if ( !$wgDisableCounters ) {
 893                         $count = $wgLang->formatNum( $wgArticle->getCount() );
 894                         if ( $count ) {
 895                                 $s = wfMsgExt( 'viewcount', array( 'parseinline' ), $count );
 896                         }
 897                 }
 898
 899                 if (isset($wgMaxCredits) && $wgMaxCredits != 0) {
 900                     require_once('Credits.php');
 901                     $s .= ' ' . getCredits($wgArticle, $wgMaxCredits, $wgShowCreditsIfMax);
 902                 } else {
 903                     $s .= $this->lastModified();
 904                 }
 905
 906                 if ($wgPageShowWatchingUsers && $wgUser->getOption( 'shownumberswatching' )) {
 907                         $dbr =& wfGetDB( DB_SLAVE );
 908                         extract( $dbr->tableNames( 'watchlist' ) );
 909                         $sql = "SELECT COUNT(*) AS n FROM $watchlist
 910                                 WHERE wl_title='" . $dbr->strencode($wgTitle->getDBKey()) .
 911                                 "' AND  wl_namespace=" . $wgTitle->getNamespace() ;
 912                         $res = $dbr->query( $sql, 'Skin::pageStats');
 913                         $x = $dbr->fetchObject( $res );
 914                         $s .= ' ' . wfMsg('number_of_watching_users_pageview', $x->n );
 915                 }
 916
 917                 return $s . ' ' .  $this->getCopyright();
 918         }
 919
 920         function getCopyright( $type = 'detect' ) {
 921                 global $wgRightsPage, $wgRightsUrl, $wgRightsText, $wgRequest;
 922
 923                 if ( $type == 'detect' ) {
 924                         $oldid = $wgRequest->getVal( 'oldid' );
 925                         $diff = $wgRequest->getVal( 'diff' );
 926
 927                         if ( !is_null( $oldid ) && is_null( $diff ) && wfMsgForContent( 'history_copyright' ) !== '-' ) {
 928                                 $type = 'history';
 929                         } else {
 930                                 $type = 'normal';
 931                         }
 932                 }
 933
 934                 if ( $type == 'history' ) {
 935                         $msg = 'history_copyright';
 936                 } else {
 937                         $msg = 'copyright';
 938                 }
 939
 940                 $out = '';
 941                 if( $wgRightsPage ) {
 942                         $link = $this->makeKnownLink( $wgRightsPage, $wgRightsText );
 943                 } elseif( $wgRightsUrl ) {
 944                         $link = $this->makeExternalLink( $wgRightsUrl, $wgRightsText );
 945                 } else {
 946                         # Give up now
 947                         return $out;
 948                 }
 949                 $out .= wfMsgForContent( $msg, $link );
 950                 return $out;
 951         }
 952
 953         function getCopyrightIcon() {
 954                 global $wgRightsUrl, $wgRightsText, $wgRightsIcon, $wgCopyrightIcon;
 955                 $out = '';
 956                 if ( isset( $wgCopyrightIcon ) && $wgCopyrightIcon ) {
 957                         $out = $wgCopyrightIcon;
 958                 } else if ( $wgRightsIcon ) {
 959                         $icon = htmlspecialchars( $wgRightsIcon );
 960                         if ( $wgRightsUrl ) {
 961                                 $url = htmlspecialchars( $wgRightsUrl );
 962                                 $out .= '<a href="'.$url.'">';
 963                         }
 964                         $text = htmlspecialchars( $wgRightsText );
 965                         $out .= "<img src=\"$icon\" alt='$text' />";
 966                         if ( $wgRightsUrl ) {
 967                                 $out .= '</a>';
 968                         }
 969                 }
 970                 return $out;
 971         }
 972
 973         function getPoweredBy() {
 974                 global $wgStylePath;
 975                 $url = htmlspecialchars( "$wgStylePath/common/images/poweredby_mediawiki_88x31.png" );
 976                 $img = '<a href="http://www.mediawiki.org/"><img src="'.$url.'" alt="MediaWiki" /></a>';
 977                 return $img;
 978         }
 979
 980         function lastModified() {
 981                 global $wgLang, $wgArticle, $wgLoadBalancer;
 982
 983                 $timestamp = $wgArticle->getTimestamp();
 984                 if ( $timestamp ) {
 985                         $d = $wgLang->timeanddate( $timestamp, true );
 986                         $s = ' ' . wfMsg( 'lastmodified', $d );
 987                 } else {
 988                         $s = '';
 989                 }
 990                 if ( $wgLoadBalancer->getLaggedSlaveMode() ) {
 991                         $s .= ' <strong>' . wfMsg( 'laggedslavemode' ) . '</strong>';
 992                 }
 993                 return $s;
 994         }
 995
 996         function logoText( $align = '' ) {
 997                 if ( '' != $align ) { $a = " align='{$align}'"; }
 998                 else { $a = ''; }
 999
1000                 $mp = wfMsgForContent( 'mainpage' );
1001                 $titleObj = Title::newFromText( $mp );
1002                 if ( is_object( $titleObj ) ) {
1003                         $url = $titleObj->escapeLocalURL();
1004                 } else {
1005                         $url = '';
1006                 }
1007
1008                 $logourl = $this->getLogo();
1009                 $s = "<a href='{$url}'><img{$a} src='{$logourl}' alt='[{$mp}]' /></a>";
1010                 return $s;
1011         }
1012
1013         /**
1014          * show a drop-down box of special pages
1015          * @TODO crash bug913. Need to be rewrote completly.
1016          */
1017         function specialPagesList() {
1018                 global $wgUser, $wgContLang, $wgServer, $wgRedirectScript, $wgAvailableRights;
1019                 require_once('SpecialPage.php');
1020                 $a = array();
1021                 $pages = SpecialPage::getPages();
1022
1023                 // special pages without access restriction
1024                 foreach ( $pages[''] as $name => $page ) {
1025                         $a[$name] = $page->getDescription();
1026                 }
1027
1028                 // Other special pages that are restricted.
1029                 // Copied from SpecialSpecialpages.php
1030                 foreach($wgAvailableRights as $right) {
1031                         if( $wgUser->isAllowed($right) ) {
1032                                 /** Add all pages for this right */
1033                                 if(isset($pages[$right])) {
1034                                         foreach($pages[$right] as $name => $page) {
1035                                         $a[$name] = $page->getDescription();
1036                                         }
1037                                 }
1038                         }
1039                 }
1040
1041                 $go = wfMsg( 'go' );
1042                 $sp = wfMsg( 'specialpages' );
1043                 $spp = $wgContLang->specialPage( 'Specialpages' );
1044
1045                 $s = '<form id="specialpages" method="get" class="inline" ' .
1046                   'action="' . htmlspecialchars( "{$wgServer}{$wgRedirectScript}" ) . "\">\n";
1047                 $s .= "<select name=\"wpDropdown\">\n";
1048                 $s .= "<option value=\"{$spp}\">{$sp}</option>\n";
1049
1050
1051                 foreach ( $a as $name => $desc ) {
1052                         $p = $wgContLang->specialPage( $name );
1053                         $s .= "<option value=\"{$p}\">{$desc}</option>\n";
1054                 }
1055                 $s .= "</select>\n";
1056                 $s .= "<input type='submit' value=\"{$go}\" name='redirect' />\n";
1057                 $s .= "</form>\n";
1058                 return $s;
1059         }
1060
1061         function mainPageLink() {
1062                 $mp = wfMsgForContent( 'mainpage' );
1063                 $mptxt = wfMsg( 'mainpage');
1064                 $s = $this->makeKnownLink( $mp, $mptxt );
1065                 return $s;
1066         }
1067
1068         function copyrightLink() {
1069                 $s = $this->makeKnownLink( wfMsgForContent( 'copyrightpage' ),
1070                   wfMsg( 'copyrightpagename' ) );
1071                 return $s;
1072         }
1073
1074         function privacyLink() {
1075                 $privacy = wfMsg( 'privacy' );
1076                 if ($privacy == '-') {
1077                         return '';
1078                 } else {
1079                         return $this->makeKnownLink( wfMsgForContent( 'privacypage' ), $privacy);
1080                 }
1081         }
1082
1083         function aboutLink() {
1084                 $s = $this->makeKnownLink( wfMsgForContent( 'aboutpage' ),
1085                   wfMsg( 'aboutsite' ) );
1086                 return $s;
1087         }
1088
1089         function disclaimerLink() {
1090                 $disclaimers = wfMsg( 'disclaimers' );
1091                 if ($disclaimers == '-') {
1092                         return '';
1093                 } else {
1094                         return $this->makeKnownLink( wfMsgForContent( 'disclaimerpage' ),
1095                                                      $disclaimers );
1096                 }
1097         }
1098
1099         function editThisPage() {
1100                 global $wgOut, $wgTitle;
1101
1102                 if ( ! $wgOut->isArticleRelated() ) {
1103                         $s = wfMsg( 'protectedpage' );
1104                 } else {
1105                         if ( $wgTitle->userCanEdit() ) {
1106                                 $t = wfMsg( 'editthispage' );
1107                         } else {
1108                                 $t = wfMsg( 'viewsource' );
1109                         }
1110
1111                         $s = $this->makeKnownLinkObj( $wgTitle, $t, $this->editUrlOptions() );
1112                 }
1113                 return $s;
1114         }
1115
1116         /**
1117          * Return URL options for the 'edit page' link.
1118          * This may include an 'oldid' specifier, if the current page view is such.
1119          *
1120          * @return string
1121          * @private
1122          */
1123         function editUrlOptions() {
1124                 global $wgArticle;
1125
1126                 if( $this->mRevisionId && ! $wgArticle->isCurrent() ) {
1127                         return "action=edit&oldid=" . intval( $this->mRevisionId );
1128                 } else {
1129                         return "action=edit";
1130                 }
1131         }
1132
1133         function deleteThisPage() {
1134                 global $wgUser, $wgTitle, $wgRequest;
1135
1136                 $diff = $wgRequest->getVal( 'diff' );
1137                 if ( $wgTitle->getArticleId() && ( ! $diff ) && $wgUser->isAllowed('delete') ) {
1138                         $t = wfMsg( 'deletethispage' );
1139
1140                         $s = $this->makeKnownLinkObj( $wgTitle, $t, 'action=delete' );
1141                 } else {
1142                         $s = '';
1143                 }
1144                 return $s;
1145         }
1146
1147         function protectThisPage() {
1148                 global $wgUser, $wgTitle, $wgRequest;
1149
1150                 $diff = $wgRequest->getVal( 'diff' );
1151                 if ( $wgTitle->getArticleId() && ( ! $diff ) && $wgUser->isAllowed('protect') ) {
1152                         if ( $wgTitle->isProtected() ) {
1153                                 $t = wfMsg( 'unprotectthispage' );
1154                                 $q = 'action=unprotect';
1155                         } else {
1156                                 $t = wfMsg( 'protectthispage' );
1157                                 $q = 'action=protect';
1158                         }
1159                         $s = $this->makeKnownLinkObj( $wgTitle, $t, $q );
1160                 } else {
1161                         $s = '';
1162                 }
1163                 return $s;
1164         }
1165
1166         function watchThisPage() {
1167                 global $wgOut, $wgTitle;
1168
1169                 if ( $wgOut->isArticleRelated() ) {
1170                         if ( $wgTitle->userIsWatching() ) {
1171                                 $t = wfMsg( 'unwatchthispage' );
1172                                 $q = 'action=unwatch';
1173                         } else {
1174                                 $t = wfMsg( 'watchthispage' );
1175                                 $q = 'action=watch';
1176                         }
1177                         $s = $this->makeKnownLinkObj( $wgTitle, $t, $q );
1178                 } else {
1179                         $s = wfMsg( 'notanarticle' );
1180                 }
1181                 return $s;
1182         }
1183
1184         function moveThisPage() {
1185                 global $wgTitle;
1186
1187                 if ( $wgTitle->userCanMove() ) {
1188                         return $this->makeKnownLinkObj( Title::makeTitle( NS_SPECIAL, 'Movepage' ),
1189                           wfMsg( 'movethispage' ), 'target=' . $wgTitle->getPrefixedURL() );
1190                 } else {
1191                         // no message if page is protected - would be redundant
1192                         return '';
1193                 }
1194         }
1195
1196         function historyLink() {
1197                 global $wgTitle;
1198
1199                 return $this->makeKnownLinkObj( $wgTitle,
1200                   wfMsg( 'history' ), 'action=history' );
1201         }
1202
1203         function whatLinksHere() {
1204                 global $wgTitle;
1205
1206                 return $this->makeKnownLinkObj( Title::makeTitle( NS_SPECIAL, 'Whatlinkshere' ),
1207                   wfMsg( 'whatlinkshere' ), 'target=' . $wgTitle->getPrefixedURL() );
1208         }
1209
1210         function userContribsLink() {
1211                 global $wgTitle;
1212
1213                 return $this->makeKnownLinkObj( Title::makeTitle( NS_SPECIAL, 'Contributions' ),
1214                   wfMsg( 'contributions' ), 'target=' . $wgTitle->getPartialURL() );
1215         }
1216
1217         function showEmailUser( $id ) {
1218                 global $wgEnableEmail, $wgEnableUserEmail, $wgUser;
1219                 return $wgEnableEmail &&
1220                        $wgEnableUserEmail &&
1221                        $wgUser->isLoggedIn() && # show only to signed in users
1222                        0 != $id; # we can only email to non-anons ..
1223 #                      '' != $id->getEmail() && # who must have an email address stored ..
1224 #                      0 != $id->getEmailauthenticationtimestamp() && # .. which is authenticated
1225 #                      1 != $wgUser->getOption('disablemail'); # and not disabled
1226         }
1227
1228         function emailUserLink() {
1229                 global $wgTitle;
1230
1231                 return $this->makeKnownLinkObj( Title::makeTitle( NS_SPECIAL, 'Emailuser' ),
1232                   wfMsg( 'emailuser' ), 'target=' . $wgTitle->getPartialURL() );
1233         }
1234
1235         function watchPageLinksLink() {
1236                 global $wgOut, $wgTitle;
1237
1238                 if ( ! $wgOut->isArticleRelated() ) {
1239                         return '(' . wfMsg( 'notanarticle' ) . ')';
1240                 } else {
1241                         return $this->makeKnownLinkObj( Title::makeTitle( NS_SPECIAL,
1242                           'Recentchangeslinked' ), wfMsg( 'recentchangeslinked' ),
1243                           'target=' . $wgTitle->getPrefixedURL() );
1244                 }
1245         }
1246
1247         function trackbackLink() {
1248                 global $wgTitle;
1249
1250                 return "<a href=\"" . $wgTitle->trackbackURL() . "\">"
1251                         . wfMsg('trackbacklink') . "</a>";
1252         }
1253
1254         function otherLanguages() {
1255                 global $wgOut, $wgLang, $wgHideInterlanguageLinks;
1256
1257                 if ( $wgHideInterlanguageLinks ) {
1258                         return '';
1259                 }
1260
1261                 $a = $wgOut->getLanguageLinks();
1262                 if ( 0 == count( $a ) ) {
1263                         return '';
1264                 }
1265
1266                 $s = wfMsg( 'otherlanguages' ) . ': ';
1267                 $first = true;
1268                 if($wgLang->isRTL()) $s .= '<span dir="LTR">';
1269                 foreach( $a as $l ) {
1270                         if ( ! $first ) { $s .= ' | '; }
1271                         $first = false;
1272
1273                         $nt = Title::newFromText( $l );
1274                         $url = $nt->escapeFullURL();
1275                         $text = $wgLang->getLanguageName( $nt->getInterwiki() );
1276
1277                         if ( '' == $text ) { $text = $l; }
1278                         $style = $this->getExternalLinkAttributes( $l, $text );
1279                         $s .= "<a href=\"{$url}\"{$style}>{$text}</a>";
1280                 }
1281                 if($wgLang->isRTL()) $s .= '</span>';
1282                 return $s;
1283         }
1284
1285         function bugReportsLink() {
1286                 $s = $this->makeKnownLink( wfMsgForContent( 'bugreportspage' ),
1287                   wfMsg( 'bugreports' ) );
1288                 return $s;
1289         }
1290
1291         function dateLink() {
1292                 $t1 = Title::newFromText( gmdate( 'F j' ) );
1293                 $t2 = Title::newFromText( gmdate( 'Y' ) );
1294
1295                 $id = $t1->getArticleID();
1296
1297                 if ( 0 == $id ) {
1298                         $s = $this->makeBrokenLink( $t1->getText() );
1299                 } else {
1300                         $s = $this->makeKnownLink( $t1->getText() );
1301                 }
1302                 $s .= ', ';
1303
1304                 $id = $t2->getArticleID();
1305
1306                 if ( 0 == $id ) {
1307                         $s .= $this->makeBrokenLink( $t2->getText() );
1308                 } else {
1309                         $s .= $this->makeKnownLink( $t2->getText() );
1310                 }
1311                 return $s;
1312         }
1313
1314         function talkLink() {
1315                 global $wgTitle;
1316
1317                 if ( NS_SPECIAL == $wgTitle->getNamespace() ) {
1318                         # No discussion links for special pages
1319                         return '';
1320                 }
1321
1322                 if( $wgTitle->isTalkPage() ) {
1323                         $link = $wgTitle->getSubjectPage();
1324                         switch( $link->getNamespace() ) {
1325                         case NS_MAIN:
1326                                 $text = wfMsg('articlepage');
1327                                 break;
1328                         case NS_USER:
1329                                 $text = wfMsg('userpage');
1330                                 break;
1331                         case NS_PROJECT:
1332                                 $text = wfMsg('projectpage');
1333                                 break;
1334                         case NS_IMAGE:
1335                                 $text = wfMsg('imagepage');
1336                                 break;
1337                         default:
1338                                 $text= wfMsg('articlepage');
1339                         }
1340                 } else {
1341                         $link = $wgTitle->getTalkPage();
1342                         $text = wfMsg( 'talkpage' );
1343                 }
1344
1345                 $s = $this->makeLinkObj( $link, $text );
1346
1347                 return $s;
1348         }
1349
1350         function commentLink() {
1351                 global $wgTitle, $wgOut;
1352
1353                 if ( $wgTitle->getNamespace() == NS_SPECIAL ) {
1354                         return '';
1355                 }
1356
1357                 # __NEWSECTIONLINK___ changes behaviour here
1358                 # If it's present, the link points to this page, otherwise
1359                 # it points to the talk page
1360                 if( $wgTitle->isTalkPage() ) {
1361                         $title =& $wgTitle;
1362                 } elseif( $wgOut->showNewSectionLink() ) {
1363                         $title =& $wgTitle;
1364                 } else {
1365                         $title =& $wgTitle->getTalkPage();
1366                 }
1367
1368                 return $this->makeKnownLinkObj( $title, wfMsg( 'postcomment' ), 'action=edit&section=new' );
1369         }
1370
1371         /* these are used extensively in SkinTemplate, but also some other places */
1372         /*static*/ function makeSpecialUrl( $name, $urlaction='' ) {
1373                 $title = Title::makeTitle( NS_SPECIAL, $name );
1374                 return $title->getLocalURL( $urlaction );
1375         }
1376
1377         /*static*/ function makeI18nUrl ( $name, $urlaction='' ) {
1378                 $title = Title::newFromText( wfMsgForContent($name) );
1379                 $this->checkTitle($title, $name);
1380                 return $title->getLocalURL( $urlaction );
1381         }
1382
1383         /*static*/ function makeUrl ( $name, $urlaction='' ) {
1384                 $title = Title::newFromText( $name );
1385                 $this->checkTitle($title, $name);
1386                 return $title->getLocalURL( $urlaction );
1387         }
1388
1389         # If url string starts with http, consider as external URL, else
1390         # internal
1391         /*static*/ function makeInternalOrExternalUrl( $name ) {
1392                 if ( preg_match( '/^(?:' . wfUrlProtocols() . ')/', $name ) ) {
1393                         return $name;
1394                 } else {
1395                         return $this->makeUrl( $name );
1396                 }
1397         }
1398
1399         # this can be passed the NS number as defined in Language.php
1400         /*static*/ function makeNSUrl( $name, $urlaction='', $namespace=NS_MAIN ) {
1401                 $title = Title::makeTitleSafe( $namespace, $name );
1402                 $this->checkTitle($title, $name);
1403                 return $title->getLocalURL( $urlaction );
1404         }
1405
1406         /* these return an array with the 'href' and boolean 'exists' */
1407         /*static*/ function makeUrlDetails ( $name, $urlaction='' ) {
1408                 $title = Title::newFromText( $name );
1409                 $this->checkTitle($title, $name);
1410                 return array(
1411                         'href' => $title->getLocalURL( $urlaction ),
1412                         'exists' => $title->getArticleID() != 0?true:false
1413                 );
1414         }
1415
1416         /**
1417          * Make URL details where the article exists (or at least it's convenient to think so)
1418          */
1419         function makeKnownUrlDetails( $name, $urlaction='' ) {
1420                 $title = Title::newFromText( $name );
1421                 $this->checkTitle($title, $name);
1422                 return array(
1423                         'href' => $title->getLocalURL( $urlaction ),
1424                         'exists' => true
1425                 );
1426         }
1427
1428         # make sure we have some title to operate on
1429         /*static*/ function checkTitle ( &$title, &$name ) {
1430                 if(!is_object($title)) {
1431                         $title = Title::newFromText( $name );
1432                         if(!is_object($title)) {
1433                                 $title = Title::newFromText( '--error: link target missing--' );
1434                         }
1435                 }
1436         }
1437
1438         /**
1439          * Build an array that represents the sidebar(s), the navigation bar among them
1440          *
1441          * @return array
1442          * @private
1443          */
1444         function buildSidebar() {
1445                 global $wgDBname, $parserMemc, $wgEnableSidebarCache;
1446                 global $wgLanguageCode, $wgContLanguageCode;
1447
1448                 $fname = 'SkinTemplate::buildSidebar';
1449
1450                 wfProfileIn( $fname );
1451
1452                 $key = "{$wgDBname}:sidebar";
1453                 $cacheSidebar = $wgEnableSidebarCache &&
1454                         ($wgLanguageCode == $wgContLanguageCode);
1455
1456                 if ($cacheSidebar) {
1457                         $cachedsidebar = $parserMemc->get( $key );
1458                         if ($cachedsidebar!="") {
1459                                 wfProfileOut($fname);
1460                                 return $cachedsidebar;
1461                         }
1462                 }
1463
1464                 $bar = array();
1465                 $lines = explode( "\n", wfMsgForContent( 'sidebar' ) );
1466                 foreach ($lines as $line) {
1467                         if (strpos($line, '*') !== 0)
1468                                 continue;
1469                         if (strpos($line, '**') !== 0) {
1470                                 $line = trim($line, '* ');
1471                                 $heading = $line;
1472                         } else {
1473                                 if (strpos($line, '|') !== false) { // sanity check
1474                                         $line = explode( '|' , trim($line, '* '), 2 );
1475                                         $link = wfMsgForContent( $line[0] );
1476                                         if ($link == '-')
1477                                                 continue;
1478                                         if (wfEmptyMsg($line[1], $text = wfMsg($line[1])))
1479                                                 $text = $line[1];
1480                                         if (wfEmptyMsg($line[0], $link))
1481                                                 $link = $line[0];
1482                                         $href = $this->makeInternalOrExternalUrl( $link );
1483                                         $bar[$heading][] = array(
1484                                                 'text' => $text,
1485                                                 'href' => $href,
1486                                                 'id' => 'n-' . strtr($line[1], ' ', '-'),
1487                                                 'active' => false
1488                                         );
1489                                 } else { continue; }
1490                         }
1491                 }
1492                 if ($cacheSidebar)
1493                         $cachednotice = $parserMemc->set( $key, $bar, 86400 );
1494                 wfProfileOut( $fname );
1495                 return $bar;
1496         }
1497 }
1498 ?>