includes/Skin.php

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