includes/Skin.php

   1 <?php
   2
   3 /**
   4  *
   5  * @package MediaWiki
   6  * @subpackage Skins
   7  */
   8
   9 /**
  10  * This is not a valid entry point, perform no further processing unless MEDIAWIKI is defined
  11  */
  12 if( defined( "MEDIAWIKI" ) ) {
  13
  14 # See skin.txt
  15 require_once( 'Linker.php' );
  16 require_once( 'Image.php' );
  17
  18 # Get a list of all skins available in /skins/
  19 # Build using the regular expression '^(.*).php$'
  20 # Array keys are all lower case, array value keep the case used by filename
  21 #
  22
  23 $skinDir = dir($IP.'/skins');
  24
  25 # while code from www.php.net
  26 while (false !== ($file = $skinDir->read())) {
  27         if(preg_match('/^([^.].*)\.php$/',$file, $matches)) {
  28                 $aSkin = $matches[1];
  29                 $wgValidSkinNames[strtolower($aSkin)] = $aSkin;
  30         }
  31 }
  32 $skinDir->close();
  33 unset($matches);
  34
  35 require_once( 'RecentChange.php' );
  36
  37 /**
  38  * @todo document
  39  * @package MediaWiki
  40  */
  41 class RCCacheEntry extends RecentChange
  42 {
  43         var $secureName, $link;
  44         var $curlink , $difflink, $lastlink , $usertalklink , $versionlink ;
  45         var $userlink, $timestamp, $watched;
  46
  47         function newFromParent( $rc )
  48         {
  49                 $rc2 = new RCCacheEntry;
  50                 $rc2->mAttribs = $rc->mAttribs;
  51                 $rc2->mExtra = $rc->mExtra;
  52                 return $rc2;
  53         }
  54 } ;
  55
  56
  57 /**
  58  * The main skin class that provide methods and properties for all other skins
  59  * including PHPTal skins.
  60  * This base class is also the "Standard" skin.
  61  * @package MediaWiki
  62  */
  63 class Skin extends Linker {
  64         /**#@+
  65          * @access private
  66          */
  67         var $lastdate, $lastline;
  68         var $rc_cache ; # Cache for Enhanced Recent Changes
  69         var $rcCacheIndex ; # Recent Changes Cache Counter for visibility toggle
  70         var $rcMoveIndex;
  71         /**#@-*/
  72
  73         /** Constructor, call parent constructor */
  74         function Skin() { parent::Linker(); }
  75
  76         /**
  77          * Fetch the set of available skins.
  78          * @return array of strings
  79          * @static
  80          */
  81         function getSkinNames() {
  82                 global $wgValidSkinNames;
  83                 return $wgValidSkinNames;
  84         }
  85
  86         /**
  87          * Normalize a skin preference value to a form that can be loaded.
  88          * If a skin can't be found, it will fall back to the configured
  89          * default (or the old 'Classic' skin if that's broken).
  90          * @param string $key
  91          * @return string
  92          * @static
  93          */
  94         function normalizeKey( $key ) {
  95                 global $wgDefaultSkin;
  96                 $skinNames = Skin::getSkinNames();
  97
  98                 if( $key == '' ) {
  99                         // Don't return the default immediately;
 100                         // in a misconfiguration we need to fall back.
 101                         $key = $wgDefaultSkin;
 102                 }
 103
 104                 if( isset( $skinNames[$key] ) ) {
 105                         return $key;
 106                 }
 107
 108                 // Older versions of the software used a numeric setting
 109                 // in the user preferences.
 110                 $fallback = array(
 111                         0 => $wgDefaultSkin,
 112                         1 => 'nostalgia',
 113                         2 => 'cologneblue' );
 114
 115                 if( isset( $fallback[$key] ) ){
 116                         $key = $fallback[$key];
 117                 }
 118
 119                 if( isset( $skinNames[$key] ) ) {
 120                         return $key;
 121                 } else {
 122                         // The old built-in skin
 123                         return 'standard';
 124                 }
 125         }
 126
 127         /**
 128          * Factory method for loading a skin of a given type
 129          * @param string $key 'monobook', 'standard', etc
 130          * @return Skin
 131          * @static
 132          */
 133         function &newFromKey( $key ) {
 134                 $key = Skin::normalizeKey( $key );
 135
 136                 $skinNames = Skin::getSkinNames();
 137                 $skinName = $skinNames[$key];
 138
 139                 global $IP;
 140
 141                 # Grab the skin class and initialise it. Each skin checks for PHPTal
 142                 # and will not load if it's not enabled.
 143                 require_once( $IP.'/skins/'.$skinName.'.php' );
 144
 145                 # Check if we got if not failback to default skin
 146                 $className = 'Skin'.$skinName;
 147                 if( !class_exists( $className ) ) {
 148                         # DO NOT die if the class isn't found. This breaks maintenance
 149                         # scripts and can cause a user account to be unrecoverable
 150                         # except by SQL manipulation if a previously valid skin name
 151                         # is no longer valid.
 152                         $className = 'SkinStandard';
 153                         require_once( $IP.'/skins/Standard.php' );
 154                 }
 155                 $skin =& new $className;
 156                 return $skin;
 157         }
 158
 159         /** @return string path to the skin stylesheet */
 160         function getStylesheet() {
 161                 return 'common/wikistandard.css?1';
 162         }
 163
 164         /** @return string skin name */
 165         function getSkinName() {
 166                 return 'standard';
 167         }
 168
 169         function qbSetting() {
 170                 global $wgOut, $wgUser;
 171
 172                 if ( $wgOut->isQuickbarSuppressed() ) { return 0; }
 173                 $q = $wgUser->getOption( 'quickbar' );
 174                 if ( '' == $q ) { $q = 0; }
 175                 return $q;
 176         }
 177
 178         function initPage( &$out ) {
 179                 $fname = 'Skin::initPage';
 180                 wfProfileIn( $fname );
 181
 182                 $out->addLink( array( 'rel' => 'shortcut icon', 'href' => '/favicon.ico' ) );
 183
 184                 $this->addMetadataLinks($out);
 185
 186                 $this->mRevisionId = $out->mRevisionId;
 187
 188                 wfProfileOut( $fname );
 189         }
 190
 191         function addMetadataLinks( &$out ) {
 192                 global $wgTitle, $wgEnableDublinCoreRdf, $wgEnableCreativeCommonsRdf;
 193                 global $wgRightsPage, $wgRightsUrl;
 194
 195                 if( $out->isArticleRelated() ) {
 196                         # note: buggy CC software only reads first "meta" link
 197                         if( $wgEnableCreativeCommonsRdf ) {
 198                                 $out->addMetadataLink( array(
 199                                         'title' => 'Creative Commons',
 200                                         'type' => 'application/rdf+xml',
 201                                         'href' => $wgTitle->getLocalURL( 'action=creativecommons') ) );
 202                         }
 203                         if( $wgEnableDublinCoreRdf ) {
 204                                 $out->addMetadataLink( array(
 205                                         'title' => 'Dublin Core',
 206                                         'type' => 'application/rdf+xml',
 207                                         'href' => $wgTitle->getLocalURL( 'action=dublincore' ) ) );
 208                         }
 209                 }
 210                 $copyright = '';
 211                 if( $wgRightsPage ) {
 212                         $copy = Title::newFromText( $wgRightsPage );
 213                         if( $copy ) {
 214                                 $copyright = $copy->getLocalURL();
 215                         }
 216                 }
 217                 if( !$copyright && $wgRightsUrl ) {
 218                         $copyright = $wgRightsUrl;
 219                 }
 220                 if( $copyright ) {
 221                         $out->addLink( array(
 222                                 'rel' => 'copyright',
 223                                 'href' => $copyright ) );
 224                 }
 225         }
 226
 227         function outputPage( &$out ) {
 228                 global $wgDebugComments;
 229
 230                 wfProfileIn( 'Skin::outputPage' );
 231                 $this->initPage( $out );
 232
 233                 $out->out( $out->headElement() );
 234
 235                 $out->out( "\n<body" );
 236                 $ops = $this->getBodyOptions();
 237                 foreach ( $ops as $name => $val ) {
 238                         $out->out( " $name='$val'" );
 239                 }
 240                 $out->out( ">\n" );
 241                 if ( $wgDebugComments ) {
 242                         $out->out( "<!-- Wiki debugging output:\n" .
 243                           $out->mDebugtext . "-->\n" );
 244                 }
 245
 246                 $out->out( $this->beforeContent() );
 247
 248                 $out->out( $out->mBodytext . "\n" );
 249
 250                 $out->out( $this->afterContent() );
 251
 252                 wfProfileClose();
 253                 $out->out( $out->reportTime() );
 254
 255                 $out->out( "\n</body></html>" );
 256         }
 257
 258         function getHeadScripts() {
 259                 global $wgStylePath, $wgUser, $wgAllowUserJs, $wgJsMimeType;
 260                 $r = "<script type=\"{$wgJsMimeType}\" src=\"{$wgStylePath}/common/wikibits.js\"></script>\n";
 261                 if( $wgAllowUserJs && $wgUser->isLoggedIn() ) {
 262                         $userpage = $wgUser->getUserPage();
 263                         $userjs = htmlspecialchars( $this->makeUrl(
 264                                 $userpage->getPrefixedText().'/'.$this->getSkinName().'.js',
 265                                 'action=raw&ctype='.$wgJsMimeType));
 266                         $r .= '<script type="'.$wgJsMimeType.'" src="'.$userjs."\"></script>\n";
 267                 }
 268                 return $r;
 269         }
 270
 271         /**
 272          * To make it harder for someone to slip a user a fake
 273          * user-JavaScript or user-CSS preview, a random token
 274          * is associated with the login session. If it's not
 275          * passed back with the preview request, we won't render
 276          * the code.
 277          *
 278          * @param string $action
 279          * @return bool
 280          * @access private
 281          */
 282         function userCanPreview( $action ) {
 283                 global $wgTitle, $wgRequest, $wgUser;
 284
 285                 if( $action != 'submit' )
 286                         return false;
 287                 if( !$wgRequest->wasPosted() )
 288                         return false;
 289                 if( !$wgTitle->userCanEditCssJsSubpage() )
 290                         return false;
 291                 return $wgUser->matchEditToken(
 292                         $wgRequest->getVal( 'wpEditToken' ) );
 293         }
 294
 295         # get the user/site-specific stylesheet, SkinPHPTal called from RawPage.php (settings are cached that way)
 296         function getUserStylesheet() {
 297                 global $wgOut, $wgStylePath, $wgRequest, $wgContLang, $wgSquidMaxage;
 298                 $sheet = $this->getStylesheet();
 299                 $action = $wgRequest->getText('action');
 300                 $s = "@import \"$wgStylePath/$sheet\";\n";
 301                 if($wgContLang->isRTL()) $s .= "@import \"$wgStylePath/common/common_rtl.css\";\n";
 302
 303                 $query = "action=raw&ctype=text/css&smaxage=$wgSquidMaxage";
 304                 $s .= '@import "' . $this->makeNSUrl( 'Common.css', $query, NS_MEDIAWIKI ) . "\";\n" .
 305                         '@import "'.$this->makeNSUrl( ucfirst( $this->getSkinName() . '.css' ), $query, NS_MEDIAWIKI ) . "\";\n";
 306
 307                 $s .= $this->doGetUserStyles();
 308                 return $s."\n";
 309         }
 310
 311         /**
 312          * placeholder, returns generated js in monobook
 313          */
 314         function getUserJs() { return; }
 315
 316         /**
 317          * Return html code that include User stylesheets
 318          */
 319         function getUserStyles() {
 320                 global $wgOut, $wgStylePath;
 321                 $s = "<style type='text/css'>\n";
 322                 $s .= "/*/*/ /*<![CDATA[*/\n"; # <-- Hide the styles from Netscape 4 without hiding them from IE/Mac
 323                 $s .= $this->getUserStylesheet();
 324                 $s .= "/*]]>*/ /* */\n";
 325                 $s .= "</style>\n";
 326                 return $s;
 327         }
 328
 329         /**
 330          * Some styles that are set by user through the user settings interface.
 331          */
 332         function doGetUserStyles() {
 333                 global $wgUser, $wgContLang, $wgUser, $wgRequest, $wgTitle, $wgAllowUserCss;
 334
 335                 $s = '';
 336
 337                 if( $wgAllowUserCss && $wgUser->isLoggedIn() ) { # logged in
 338                         if($wgTitle->isCssSubpage() && $this->userCanPreview( $action ) ) {
 339                                 $s .= $wgRequest->getText('wpTextbox1');
 340                         } else {
 341                                 $userpage = $wgUser->getUserPage();
 342                                 $s.= '@import "'.$this->makeUrl(
 343                                         $userpage->getPrefixedText().'/'.$this->getSkinName().'.css',
 344                                         'action=raw&ctype=text/css').'";'."\n";
 345                         }
 346                 }
 347
 348                 return $s . $this->reallyDoGetUserStyles();
 349         }
 350
 351         function reallyDoGetUserStyles() {
 352                 global $wgUser;
 353                 $s = '';
 354                 if (($undopt = $wgUser->getOption("underline")) != 2) {
 355                         $underline = $undopt ? 'underline' : 'none';
 356                         $s .= "a { text-decoration: $underline; }\n";
 357                 }
 358                 if( $wgUser->getOption( 'highlightbroken' ) ) {
 359                         $s .= "a.new, #quickbar a.new { color: #CC2200; }\n";
 360                 } else {
 361                         $s .= <<<END
 362 a.new, #quickbar a.new,
 363 a.stub, #quickbar a.stub {
 364         color: inherit;
 365         text-decoration: inherit;
 366 }
 367 a.new:after, #quickbar a.new:after {
 368         content: "?";
 369         color: #CC2200;
 370         text-decoration: $underline;
 371 }
 372 a.stub:after, #quickbar a.stub:after {
 373         content: "!";
 374         color: #772233;
 375         text-decoration: $underline;
 376 }
 377 END;
 378                 }
 379                 if( $wgUser->getOption( 'justify' ) ) {
 380                         $s .= "#article, #bodyContent { text-align: justify; }\n";
 381                 }
 382                 if( !$wgUser->getOption( 'showtoc' ) ) {
 383                         $s .= "#toc { display: none; }\n";
 384                 }
 385                 if( !$wgUser->getOption( 'editsection' ) ) {
 386                         $s .= ".editsection { display: none; }\n";
 387                 }
 388                 return $s;
 389         }
 390
 391         function getBodyOptions() {
 392                 global $wgUser, $wgTitle, $wgOut, $wgRequest;
 393
 394                 extract( $wgRequest->getValues( 'oldid', 'redirect', 'diff' ) );
 395
 396                 if ( 0 != $wgTitle->getNamespace() ) {
 397                         $a = array( 'bgcolor' => '#ffffec' );
 398                 }
 399                 else $a = array( 'bgcolor' => '#FFFFFF' );
 400                 if($wgOut->isArticle() && $wgUser->getOption('editondblclick') &&
 401                   $wgTitle->userCanEdit() ) {
 402                         $t = wfMsg( 'editthispage' );
 403                         $s = $wgTitle->getFullURL( $this->editUrlOptions() );
 404                         $s = 'document.location = "' .wfEscapeJSString( $s ) .'";';
 405                         $a += array ('ondblclick' => $s);
 406
 407                 }
 408                 $a['onload'] = $wgOut->getOnloadHandler();
 409                 if( $wgUser->getOption( 'editsectiononrightclick' ) ) {
 410                         if( $a['onload'] != '' ) {
 411                                 $a['onload'] .= ';';
 412                         }
 413                         $a['onload'] .= 'setupRightClickEdit()';
 414                 }
 415                 return $a;
 416         }
 417
 418         /**
 419          * URL to the logo
 420          */
 421         function getLogo() {
 422                 global $wgLogo;
 423                 return $wgLogo;
 424         }
 425
 426         /**
 427          * This will be called immediately after the <body> tag.  Split into
 428          * two functions to make it easier to subclass.
 429          */
 430         function beforeContent() {
 431                 return $this->doBeforeContent();
 432         }
 433
 434         function doBeforeContent() {
 435                 global $wgOut, $wgTitle, $wgContLang;
 436                 $fname = 'Skin::doBeforeContent';
 437                 wfProfileIn( $fname );
 438
 439                 $s = '';
 440                 $qb = $this->qbSetting();
 441
 442                 if( $langlinks = $this->otherLanguages() ) {
 443                         $rows = 2;
 444                         $borderhack = '';
 445                 } else {
 446                         $rows = 1;
 447                         $langlinks = false;
 448                         $borderhack = 'class="top"';
 449                 }
 450
 451                 $s .= "\n<div id='content'>\n<div id='topbar'>\n" .
 452                   "<table border='0' cellspacing='0' width='98%'>\n<tr>\n";
 453
 454                 $shove = ($qb != 0);
 455                 $left = ($qb == 1 || $qb == 3);
 456                 if($wgContLang->isRTL()) $left = !$left;
 457
 458                 if ( !$shove ) {
 459                         $s .= "<td class='top' align='left' valign='top' rowspan='{$rows}'>\n" .
 460                           $this->logoText() . '</td>';
 461                 } elseif( $left ) {
 462                         $s .= $this->getQuickbarCompensator( $rows );
 463                 }
 464                 $l = $wgContLang->isRTL() ? 'right' : 'left';
 465                 $s .= "<td {$borderhack} align='$l' valign='top'>\n";
 466
 467                 $s .= $this->topLinks() ;
 468                 $s .= "<p class='subtitle'>" . $this->pageTitleLinks() . "</p>\n";
 469
 470                 $r = $wgContLang->isRTL() ? "left" : "right";
 471                 $s .= "</td>\n<td {$borderhack} valign='top' align='$r' nowrap='nowrap'>";
 472                 $s .= $this->nameAndLogin();
 473                 $s .= "\n<br />" . $this->searchForm() . "</td>";
 474
 475                 if ( $langlinks ) {
 476                         $s .= "</tr>\n<tr>\n<td class='top' colspan=\"2\">$langlinks</td>\n";
 477                 }
 478
 479                 if ( $shove && !$left ) { # Right
 480                         $s .= $this->getQuickbarCompensator( $rows );
 481                 }
 482                 $s .= "</tr>\n</table>\n</div>\n";
 483                 $s .= "\n<div id='article'>\n";
 484
 485                 $notice = wfGetSiteNotice();
 486                 if( $notice ) {
 487                         $s .= "\n<div id='siteNotice'>$notice</div>\n";
 488                 }
 489                 $s .= $this->pageTitle();
 490                 $s .= $this->pageSubtitle() ;
 491                 $s .= $this->getCategories();
 492                 wfProfileOut( $fname );
 493                 return $s;
 494         }
 495
 496
 497         function getCategoryLinks () {
 498                 global $wgOut, $wgTitle, $wgUseCategoryMagic, $wgUseCategoryBrowser;
 499                 global $wgContLang;
 500
 501                 if( !$wgUseCategoryMagic ) return '' ;
 502                 if( count( $wgOut->mCategoryLinks ) == 0 ) return '';
 503
 504                 // Use Unicode bidi embedding override characters,
 505                 // to make sure links don't smash each other up in ugly ways.
 506                 $dir = $wgContLang->isRTL() ? 'rtl' : 'ltr';
 507                 $embed = "<span dir='$dir'>";
 508                 $pop = '</span>';
 509                 $t = $embed . implode ( "$pop | $embed" , $wgOut->mCategoryLinks ) . $pop;
 510
 511                 $msg = count( $wgOut->mCategoryLinks ) === 1 ? 'categories1' : 'categories';
 512                 $s = $this->makeKnownLinkObj( Title::makeTitle( NS_SPECIAL, 'Categories' ),
 513                         wfMsg( $msg ), 'article=' . urlencode( $wgTitle->getPrefixedDBkey() ) )
 514                         . ': ' . $t;
 515
 516                 # optional 'dmoz-like' category browser. Will be shown under the list
 517                 # of categories an article belong to
 518                 if($wgUseCategoryBrowser) {
 519                         $s .= '<br /><hr />';
 520
 521                         # get a big array of the parents tree
 522                         $parenttree = $wgTitle->getParentCategoryTree();
 523                         # Skin object passed by reference cause it can not be
 524                         # accessed under the method subfunction drawCategoryBrowser
 525                         $tempout = explode("\n", Skin::drawCategoryBrowser($parenttree, $this) );
 526                         # Clean out bogus first entry and sort them
 527                         unset($tempout[0]);
 528                         asort($tempout);
 529                         # Output one per line
 530                         $s .= implode("<br />\n", $tempout);
 531                 }
 532
 533                 return $s;
 534         }
 535
 536         /** Render the array as a serie of links.
 537          * @param array $tree Categories tree returned by Title::getParentCategoryTree
 538          * @param object &skin Skin passed by reference
 539          * @return string separated by &gt;, terminate with "\n"
 540          */
 541         function drawCategoryBrowser($tree, &$skin) {
 542                 $return = '';
 543                 foreach ($tree as $element => $parent) {
 544                         if (empty($parent)) {
 545                                 # element start a new list
 546                                 $return .= "\n";
 547                         } else {
 548                                 # grab the others elements
 549                                 $return .= Skin::drawCategoryBrowser($parent, $skin) . ' &gt; ';
 550                         }
 551                         # add our current element to the list
 552                         $eltitle = Title::NewFromText($element);
 553                         $return .=  $skin->makeLinkObj( $eltitle, $eltitle->getText() ) ;
 554                 }
 555                 return $return;
 556         }
 557
 558         function getCategories() {
 559                 $catlinks=$this->getCategoryLinks();
 560                 if(!empty($catlinks)) {
 561                         return "<p class='catlinks'>{$catlinks}</p>";
 562                 }
 563         }
 564
 565         function getQuickbarCompensator( $rows = 1 ) {
 566                 return "<td width='152' rowspan='{$rows}'>&nbsp;</td>";
 567         }
 568
 569         /**
 570          * This gets called immediately before the </body> tag.
 571          * @return string HTML to be put after </body> ???
 572          */
 573         function afterContent() {
 574                 $printfooter = "<div class=\"printfooter\">\n" . $this->printFooter() . "</div>\n";
 575                 return $printfooter . $this->doAfterContent();
 576         }
 577
 578         /** @return string Retrievied from HTML text */
 579         function printSource() {
 580                 global $wgTitle;
 581                 $url = htmlspecialchars( $wgTitle->getFullURL() );
 582                 return wfMsg( 'retrievedfrom', '<a href="'.$url.'">'.$url.'</a>' );
 583         }
 584
 585         function printFooter() {
 586                 return "<p>" .  $this->printSource() .
 587                         "</p>\n\n<p>" . $this->pageStats() . "</p>\n";
 588         }
 589
 590         /** overloaded by derived classes */
 591         function doAfterContent() { }
 592
 593         function pageTitleLinks() {
 594                 global $wgOut, $wgTitle, $wgUser, $wgContLang, $wgRequest;
 595
 596                 extract( $wgRequest->getValues( 'oldid', 'diff' ) );
 597                 $action = $wgRequest->getText( 'action' );
 598
 599                 $s = $this->printableLink();
 600                 $disclaimer = $this->disclaimerLink(); # may be empty
 601                 if( $disclaimer ) {
 602                         $s .= ' | ' . $disclaimer;
 603                 }
 604                 $privacy = $this->privacyLink(); # may be empty too
 605                 if( $privacy ) {
 606                         $s .= ' | ' . $privacy;
 607                 }
 608
 609                 if ( $wgOut->isArticleRelated() ) {
 610                         if ( $wgTitle->getNamespace() == NS_IMAGE ) {
 611                                 $name = $wgTitle->getDBkey();
 612                                 $image = new Image( $wgTitle );
 613                                 if( $image->exists() ) {
 614                                         $link = htmlspecialchars( $image->getURL() );
 615                                         $style = $this->getInternalLinkAttributes( $link, $name );
 616                                         $s .= " | <a href=\"{$link}\"{$style}>{$name}</a>";
 617                                 }
 618                         }
 619                 }
 620                 if ( 'history' == $action || isset( $diff ) || isset( $oldid ) ) {
 621                         $s .= ' | ' . $this->makeKnownLinkObj( $wgTitle,
 622                                         wfMsg( 'currentrev' ) );
 623                 }
 624
 625                 if ( $wgUser->getNewtalk() ) {
 626                         # do not show "You have new messages" text when we are viewing our
 627                         # own talk page
 628                         if( !$wgTitle->equals( $wgUser->getTalkPage() ) ) {
 629                                 $tl = $this->makeKnownLinkObj( $wgUser->getTalkPage(), wfMsgHtml( 'newmessageslink' ) );
 630                                 $dl = $this->makeKnownLinkObj( $wgUser->getTalkPage(), wfMsgHtml( 'newmessagesdifflink' ) );
 631                                 $s.= ' | <strong>'. wfMsg( 'youhavenewmessages', $tl, $dl ) . '</strong>';
 632                                 # disable caching
 633                                 $wgOut->setSquidMaxage(0);
 634                                 $wgOut->enableClientCache(false);
 635                         }
 636                 }
 637
 638                 $undelete = $this->getUndeleteLink();
 639                 if( !empty( $undelete ) ) {
 640                         $s .= ' | '.$undelete;
 641                 }
 642                 return $s;
 643         }
 644
 645         function getUndeleteLink() {
 646                 global $wgUser, $wgTitle, $wgContLang, $action;
 647                 if(     $wgUser->isAllowed( 'deletedhistory' ) &&
 648                         (($wgTitle->getArticleId() == 0) || ($action == "history")) &&
 649                         ($n = $wgTitle->isDeleted() ) )
 650                 {
 651                         if ( $wgUser->isAllowed( 'delete' ) ) {
 652                                 $msg = 'thisisdeleted';
 653                         } else {
 654                                 $msg = 'viewdeleted';
 655                         }
 656                         return wfMsg( $msg,
 657                                 $this->makeKnownLink(
 658                                         $wgContLang->SpecialPage( 'Undelete/' . $wgTitle->getPrefixedDBkey() ),
 659                                         wfMsg( 'restorelink' . ($n == 1 ? '1' : ''), $n ) ) );
 660                 }
 661                 return '';
 662         }
 663
 664         function printableLink() {
 665                 global $wgOut, $wgFeedClasses, $wgRequest;
 666
 667                 $baseurl = $_SERVER['REQUEST_URI'];
 668                 if( strpos( '?', $baseurl ) == false ) {
 669                         $baseurl .= '?';
 670                 } else {
 671                         $baseurl .= '&';
 672                 }
 673                 $baseurl = htmlspecialchars( $baseurl );
 674                 $printurl = $wgRequest->escapeAppendQuery( 'printable=yes' );
 675
 676                 $s = "<a href=\"$printurl\">" . wfMsg( 'printableversion' ) . '</a>';
 677                 if( $wgOut->isSyndicated() ) {
 678                         foreach( $wgFeedClasses as $format => $class ) {
 679                                 $feedurl = $wgRequest->escapeAppendQuery( "feed=$format" );
 680                                 $s .= " | <a href=\"$feedurl\">{$format}</a>";
 681                         }
 682                 }
 683                 return $s;
 684         }
 685
 686         function pageTitle() {
 687                 global $wgOut, $wgTitle, $wgUser;
 688
 689                 $s = '<h1 class="pagetitle">' . htmlspecialchars( $wgOut->getPageTitle() ) . '</h1>';
 690                 return $s;
 691         }
 692
 693         function pageSubtitle() {
 694                 global $wgOut;
 695
 696                 $sub = $wgOut->getSubtitle();
 697                 if ( '' == $sub ) {
 698                         global $wgExtraSubtitle;
 699                         $sub = wfMsg( 'tagline' ) . $wgExtraSubtitle;
 700                 }
 701                 $subpages = $this->subPageSubtitle();
 702                 $sub .= !empty($subpages)?"</p><p class='subpages'>$subpages":'';
 703                 $s = "<p class='subtitle'>{$sub}</p>\n";
 704                 return $s;
 705         }
 706
 707         function subPageSubtitle() {
 708                 global $wgOut,$wgTitle,$wgNamespacesWithSubpages;
 709                 $subpages = '';
 710                 if($wgOut->isArticle() && !empty($wgNamespacesWithSubpages[$wgTitle->getNamespace()])) {
 711                         $ptext=$wgTitle->getPrefixedText();
 712                         if(preg_match('/\//',$ptext)) {
 713                                 $links = explode('/',$ptext);
 714                                 $c = 0;
 715                                 $growinglink = '';
 716                                 foreach($links as $link) {
 717                                         $c++;
 718                                         if ($c<count($links)) {
 719                                                 $growinglink .= $link;
 720                                                 $getlink = $this->makeLink( $growinglink, $link );
 721                                                 if(preg_match('/class="new"/i',$getlink)) { break; } # this is a hack, but it saves time
 722                                                 if ($c>1) {
 723                                                         $subpages .= ' | ';
 724                                                 } else  {
 725                                                         $subpages .= '&lt; ';
 726                                                 }
 727                                                 $subpages .= $getlink;
 728                                                 $growinglink .= '/';
 729                                         }
 730                                 }
 731                         }
 732                 }
 733                 return $subpages;
 734         }
 735
 736         function nameAndLogin() {
 737                 global $wgUser, $wgTitle, $wgLang, $wgContLang, $wgShowIPinHeader;
 738
 739                 $li = $wgContLang->specialPage( 'Userlogin' );
 740                 $lo = $wgContLang->specialPage( 'Userlogout' );
 741
 742                 $s = '';
 743                 if ( $wgUser->isAnon() ) {
 744                         if( $wgShowIPinHeader && isset( $_COOKIE[ini_get('session.name')] ) ) {
 745                                 $n = wfGetIP();
 746
 747                                 $tl = $this->makeKnownLinkObj( $wgUser->getTalkPage(),
 748                                   $wgLang->getNsText( NS_TALK ) );
 749
 750                                 $s .= $n . ' ('.$tl.')';
 751                         } else {
 752                                 $s .= wfMsg('notloggedin');
 753                         }
 754
 755                         $rt = $wgTitle->getPrefixedURL();
 756                         if ( 0 == strcasecmp( urlencode( $lo ), $rt ) ) {
 757                                 $q = '';
 758                         } else { $q = "returnto={$rt}"; }
 759
 760                         $s .= "\n<br />" . $this->makeKnownLinkObj(
 761                                 Title::makeTitle( NS_SPECIAL, 'Userlogin' ),
 762                                 wfMsg( 'login' ), $q );
 763                 } else {
 764                         $n = $wgUser->getName();
 765                         $rt = $wgTitle->getPrefixedURL();
 766                         $tl = $this->makeKnownLinkObj( $wgUser->getTalkPage(),
 767                           $wgLang->getNsText( NS_TALK ) );
 768
 769                         $tl = " ({$tl})";
 770
 771                         $s .= $this->makeKnownLinkObj( $wgUser->getUserPage(),
 772                           $n ) . "{$tl}<br />" .
 773                           $this->makeKnownLinkObj( Title::makeTitle( NS_SPECIAL, 'Userlogout' ), wfMsg( 'logout' ),
 774                           "returnto={$rt}" ) . ' | ' .
 775                           $this->specialLink( 'preferences' );
 776                 }
 777                 $s .= ' | ' . $this->makeKnownLink( wfMsgForContent( 'helppage' ),
 778                   wfMsg( 'help' ) );
 779
 780                 return $s;
 781         }
 782
 783         function getSearchLink() {
 784                 $searchPage =& Title::makeTitle( NS_SPECIAL, 'Search' );
 785                 return $searchPage->getLocalURL();
 786         }
 787
 788         function escapeSearchLink() {
 789                 return htmlspecialchars( $this->getSearchLink() );
 790         }
 791
 792         function searchForm() {
 793                 global $wgRequest;
 794                 $search = $wgRequest->getText( 'search' );
 795
 796                 $s = '<form name="search" class="inline" method="post" action="'
 797                   . $this->escapeSearchLink() . "\">\n"
 798                   . '<input type="text" name="search" size="19" value="'
 799                   . htmlspecialchars(substr($search,0,256)) . "\" />\n"
 800                   . '<input type="submit" name="go" value="' . wfMsg ('go') . '" />&nbsp;'
 801                   . '<input type="submit" name="fulltext" value="' . wfMsg ('search') . "\" />\n</form>";
 802
 803                 return $s;
 804         }
 805
 806         function topLinks() {
 807                 global $wgOut;
 808                 $sep = " |\n";
 809
 810                 $s = $this->mainPageLink() . $sep
 811                   . $this->specialLink( 'recentchanges' );
 812
 813                 if ( $wgOut->isArticleRelated() ) {
 814                         $s .=  $sep . $this->editThisPage()
 815                           . $sep . $this->historyLink();
 816                 }
 817                 # Many people don't like this dropdown box
 818                 #$s .= $sep . $this->specialPagesList();
 819
 820                 /* show links to different language variants */
 821                 global $wgDisableLangConversion, $wgContLang, $wgTitle;
 822                 $variants = $wgContLang->getVariants();
 823                 if( !$wgDisableLangConversion && sizeof( $variants ) > 1 ) {
 824                         foreach( $variants as $code ) {
 825                                 $varname = $wgContLang->getVariantname( $code );
 826                                 if( $varname == 'disable' )
 827                                         continue;
 828                                 $s .= ' | <a href="' . $wgTitle->getLocalUrl( 'variant=' . $code ) . '">' . $varname . '</a>';
 829                         }
 830                 }
 831
 832                 return $s;
 833         }
 834
 835         function bottomLinks() {
 836                 global $wgOut, $wgUser, $wgTitle, $wgUseTrackbacks;
 837                 $sep = " |\n";
 838
 839                 $s = '';
 840                 if ( $wgOut->isArticleRelated() ) {
 841                         $s .= '<strong>' . $this->editThisPage() . '</strong>';
 842                         if ( $wgUser->isLoggedIn() ) {
 843                                 $s .= $sep . $this->watchThisPage();
 844                         }
 845                         $s .= $sep . $this->talkLink()
 846                           . $sep . $this->historyLink()
 847                           . $sep . $this->whatLinksHere()
 848                           . $sep . $this->watchPageLinksLink();
 849
 850                         if ($wgUseTrackbacks)
 851                                 $s .= $sep . $this->trackbackLink();
 852
 853                         if ( $wgTitle->getNamespace() == NS_USER
 854                             || $wgTitle->getNamespace() == NS_USER_TALK )
 855
 856                         {
 857                                 $id=User::idFromName($wgTitle->getText());
 858                                 $ip=User::isIP($wgTitle->getText());
 859
 860                                 if($id || $ip) { # both anons and non-anons have contri list
 861                                         $s .= $sep . $this->userContribsLink();
 862                                 }
 863                                 if( $this->showEmailUser( $id ) ) {
 864                                         $s .= $sep . $this->emailUserLink();
 865                                 }
 866                         }
 867                         if ( $wgTitle->getArticleId() ) {
 868                                 $s .= "\n<br />";
 869                                 if($wgUser->isAllowed('delete')) { $s .= $this->deleteThisPage(); }
 870                                 if($wgUser->isAllowed('protect')) { $s .= $sep . $this->protectThisPage(); }
 871                                 if($wgUser->isAllowed('move')) { $s .= $sep . $this->moveThisPage(); }
 872                         }
 873                         $s .= "<br />\n" . $this->otherLanguages();
 874                 }
 875                 return $s;
 876         }
 877
 878         function pageStats() {
 879                 global $wgOut, $wgLang, $wgArticle, $wgRequest, $wgUser;
 880                 global $wgDisableCounters, $wgMaxCredits, $wgShowCreditsIfMax, $wgTitle, $wgPageShowWatchingUsers;
 881
 882                 extract( $wgRequest->getValues( 'oldid', 'diff' ) );
 883                 if ( ! $wgOut->isArticle() ) { return ''; }
 884                 if ( isset( $oldid ) || isset( $diff ) ) { return ''; }
 885                 if ( 0 == $wgArticle->getID() ) { return ''; }
 886
 887                 $s = '';
 888                 if ( !$wgDisableCounters ) {
 889                         $count = $wgLang->formatNum( $wgArticle->getCount() );
 890                         if ( $count ) {
 891                                 $s = wfMsg( 'viewcount', $count );
 892                         }
 893                 }
 894
 895                 if (isset($wgMaxCredits) && $wgMaxCredits != 0) {
 896                     require_once('Credits.php');
 897                     $s .= ' ' . getCredits($wgArticle, $wgMaxCredits, $wgShowCreditsIfMax);
 898                 } else {
 899                     $s .= $this->lastModified();
 900                 }
 901
 902                 if ($wgPageShowWatchingUsers && $wgUser->getOption( 'shownumberswatching' )) {
 903                         $dbr =& wfGetDB( DB_SLAVE );
 904                         extract( $dbr->tableNames( 'watchlist' ) );
 905                         $sql = "SELECT COUNT(*) AS n FROM $watchlist
 906                                 WHERE wl_title='" . $dbr->strencode($wgTitle->getDBKey()) .
 907                                 "' AND  wl_namespace=" . $wgTitle->getNamespace() ;
 908                         $res = $dbr->query( $sql, 'Skin::pageStats');
 909                         $x = $dbr->fetchObject( $res );
 910                         $s .= ' ' . wfMsg('number_of_watching_users_pageview', $x->n );
 911                 }
 912
 913                 return $s . ' ' .  $this->getCopyright();
 914         }
 915
 916         function getCopyright() {
 917                 global $wgRightsPage, $wgRightsUrl, $wgRightsText, $wgRequest;
 918
 919
 920                 $oldid = $wgRequest->getVal( 'oldid' );
 921                 $diff = $wgRequest->getVal( 'diff' );
 922
 923                 if ( !is_null( $oldid ) && is_null( $diff ) && wfMsgForContent( 'history_copyright' ) !== '-' ) {
 924                         $msg = 'history_copyright';
 925                 } else {
 926                         $msg = 'copyright';
 927                 }
 928
 929                 $out = '';
 930                 if( $wgRightsPage ) {
 931                         $link = $this->makeKnownLink( $wgRightsPage, $wgRightsText );
 932                 } elseif( $wgRightsUrl ) {
 933                         $link = $this->makeExternalLink( $wgRightsUrl, $wgRightsText );
 934                 } else {
 935                         # Give up now
 936                         return $out;
 937                 }
 938                 $out .= wfMsgForContent( $msg, $link );
 939                 return $out;
 940         }
 941
 942         function getCopyrightIcon() {
 943                 global $wgRightsPage, $wgRightsUrl, $wgRightsText, $wgRightsIcon, $wgCopyrightIcon;
 944                 $out = '';
 945                 if ( isset( $wgCopyrightIcon ) && $wgCopyrightIcon ) {
 946                         $out = $wgCopyrightIcon;
 947                 } else if ( $wgRightsIcon ) {
 948                         $icon = htmlspecialchars( $wgRightsIcon );
 949                         if ( $wgRightsUrl ) {
 950                                 $url = htmlspecialchars( $wgRightsUrl );
 951                                 $out .= '<a href="'.$url.'">';
 952                         }
 953                         $text = htmlspecialchars( $wgRightsText );
 954                         $out .= "<img src=\"$icon\" alt='$text' />";
 955                         if ( $wgRightsUrl ) {
 956                                 $out .= '</a>';
 957                         }
 958                 }
 959                 return $out;
 960         }
 961
 962         function getPoweredBy() {
 963                 global $wgStylePath;
 964                 $url = htmlspecialchars( "$wgStylePath/common/images/poweredby_mediawiki_88x31.png" );
 965                 $img = '<a href="http://www.mediawiki.org/"><img src="'.$url.'" alt="MediaWiki" /></a>';
 966                 return $img;
 967         }
 968
 969         function lastModified() {
 970                 global $wgLang, $wgArticle, $wgLoadBalancer;
 971
 972                 $timestamp = $wgArticle->getTimestamp();
 973                 if ( $timestamp ) {
 974                         $d = $wgLang->timeanddate( $timestamp, true );
 975                         $s = ' ' . wfMsg( 'lastmodified', $d );
 976                 } else {
 977                         $s = '';
 978                 }
 979                 if ( $wgLoadBalancer->getLaggedSlaveMode() ) {
 980                         $s .= ' <strong>' . wfMsg( 'laggedslavemode' ) . '</strong>';
 981                 }
 982                 return $s;
 983         }
 984
 985         function logoText( $align = '' ) {
 986                 if ( '' != $align ) { $a = " align='{$align}'"; }
 987                 else { $a = ''; }
 988
 989                 $mp = wfMsg( 'mainpage' );
 990                 $titleObj = Title::newFromText( $mp );
 991                 if ( is_object( $titleObj ) ) {
 992                         $url = $titleObj->escapeLocalURL();
 993                 } else {
 994                         $url = '';
 995                 }
 996
 997                 $logourl = $this->getLogo();
 998                 $s = "<a href='{$url}'><img{$a} src='{$logourl}' alt='[{$mp}]' /></a>";
 999                 return $s;
1000         }
1001
1002         /**
1003          * show a drop-down box of special pages
1004          * @TODO crash bug913. Need to be rewrote completly.
1005          */
1006         function specialPagesList() {
1007                 global $wgUser, $wgOut, $wgContLang, $wgServer, $wgRedirectScript, $wgAvailableRights;
1008                 require_once('SpecialPage.php');
1009                 $a = array();
1010                 $pages = SpecialPage::getPages();
1011
1012                 // special pages without access restriction
1013                 foreach ( $pages[''] as $name => $page ) {
1014                         $a[$name] = $page->getDescription();
1015                 }
1016
1017                 // Other special pages that are restricted.
1018                 // Copied from SpecialSpecialpages.php
1019                 foreach($wgAvailableRights as $right) {
1020                         if( $wgUser->isAllowed($right) ) {
1021                                 /** Add all pages for this right */
1022                                 if(isset($pages[$right])) {
1023                                         foreach($pages[$right] as $name => $page) {
1024                                         $a[$name] = $page->getDescription();
1025                                         }
1026                                 }
1027                         }
1028                 }
1029
1030                 $go = wfMsg( 'go' );
1031                 $sp = wfMsg( 'specialpages' );
1032                 $spp = $wgContLang->specialPage( 'Specialpages' );
1033
1034                 $s = '<form id="specialpages" method="get" class="inline" ' .
1035                   'action="' . htmlspecialchars( "{$wgServer}{$wgRedirectScript}" ) . "\">\n";
1036                 $s .= "<select name=\"wpDropdown\">\n";
1037                 $s .= "<option value=\"{$spp}\">{$sp}</option>\n";
1038
1039
1040                 foreach ( $a as $name => $desc ) {
1041                         $p = $wgContLang->specialPage( $name );
1042                         $s .= "<option value=\"{$p}\">{$desc}</option>\n";
1043                 }
1044                 $s .= "</select>\n";
1045                 $s .= "<input type='submit' value=\"{$go}\" name='redirect' />\n";
1046                 $s .= "</form>\n";
1047                 return $s;
1048         }
1049
1050         function mainPageLink() {
1051                 $mp = wfMsgForContent( 'mainpage' );
1052                 $mptxt = wfMsg( 'mainpage');
1053                 $s = $this->makeKnownLink( $mp, $mptxt );
1054                 return $s;
1055         }
1056
1057         function copyrightLink() {
1058                 $s = $this->makeKnownLink( wfMsgForContent( 'copyrightpage' ),
1059                   wfMsg( 'copyrightpagename' ) );
1060                 return $s;
1061         }
1062
1063         function privacyLink() {
1064                 $privacy = wfMsg( 'privacy' );
1065                 if ($privacy == '-') {
1066                         return '';
1067                 } else {
1068                         return $this->makeKnownLink( wfMsgForContent( 'privacypage' ), $privacy);
1069                 }
1070         }
1071
1072         function aboutLink() {
1073                 $s = $this->makeKnownLink( wfMsgForContent( 'aboutpage' ),
1074                   wfMsg( 'aboutsite' ) );
1075                 return $s;
1076         }
1077
1078         function disclaimerLink() {
1079                 $disclaimers = wfMsg( 'disclaimers' );
1080                 if ($disclaimers == '-') {
1081                         return '';
1082                 } else {
1083                         return $this->makeKnownLink( wfMsgForContent( 'disclaimerpage' ),
1084                                                      $disclaimers );
1085                 }
1086         }
1087
1088         function editThisPage() {
1089                 global $wgOut, $wgTitle, $wgRequest;
1090
1091                 if ( ! $wgOut->isArticleRelated() ) {
1092                         $s = wfMsg( 'protectedpage' );
1093                 } else {
1094                         if ( $wgTitle->userCanEdit() ) {
1095                                 $t = wfMsg( 'editthispage' );
1096                         } else {
1097                                 $t = wfMsg( 'viewsource' );
1098                         }
1099
1100                         $s = $this->makeKnownLinkObj( $wgTitle, $t, $this->editUrlOptions() );
1101                 }
1102                 return $s;
1103         }
1104
1105         /**
1106          * Return URL options for the 'edit page' link.
1107          * This may include an 'oldid' specifier, if the current page view is such.
1108          *
1109          * @return string
1110          * @access private
1111          */
1112         function editUrlOptions() {
1113                 global $wgArticle;
1114
1115                 if( $this->mRevisionId && ! $wgArticle->isCurrent() ) {
1116                         return "action=edit&oldid=" . intval( $this->mRevisionId );
1117                 } else {
1118                         return "action=edit";
1119                 }
1120         }
1121
1122         function deleteThisPage() {
1123                 global $wgUser, $wgOut, $wgTitle, $wgRequest;
1124
1125                 $diff = $wgRequest->getVal( 'diff' );
1126                 if ( $wgTitle->getArticleId() && ( ! $diff ) && $wgUser->isAllowed('delete') ) {
1127                         $t = wfMsg( 'deletethispage' );
1128
1129                         $s = $this->makeKnownLinkObj( $wgTitle, $t, 'action=delete' );
1130                 } else {
1131                         $s = '';
1132                 }
1133                 return $s;
1134         }
1135
1136         function protectThisPage() {
1137                 global $wgUser, $wgOut, $wgTitle, $wgRequest;
1138
1139                 $diff = $wgRequest->getVal( 'diff' );
1140                 if ( $wgTitle->getArticleId() && ( ! $diff ) && $wgUser->isAllowed('protect') ) {
1141                         if ( $wgTitle->isProtected() ) {
1142                                 $t = wfMsg( 'unprotectthispage' );
1143                                 $q = 'action=unprotect';
1144                         } else {
1145                                 $t = wfMsg( 'protectthispage' );
1146                                 $q = 'action=protect';
1147                         }
1148                         $s = $this->makeKnownLinkObj( $wgTitle, $t, $q );
1149                 } else {
1150                         $s = '';
1151                 }
1152                 return $s;
1153         }
1154
1155         function watchThisPage() {
1156                 global $wgUser, $wgOut, $wgTitle;
1157
1158                 if ( $wgOut->isArticleRelated() ) {
1159                         if ( $wgTitle->userIsWatching() ) {
1160                                 $t = wfMsg( 'unwatchthispage' );
1161                                 $q = 'action=unwatch';
1162                         } else {
1163                                 $t = wfMsg( 'watchthispage' );
1164                                 $q = 'action=watch';
1165                         }
1166                         $s = $this->makeKnownLinkObj( $wgTitle, $t, $q );
1167                 } else {
1168                         $s = wfMsg( 'notanarticle' );
1169                 }
1170                 return $s;
1171         }
1172
1173         function moveThisPage() {
1174                 global $wgTitle;
1175
1176                 if ( $wgTitle->userCanMove() ) {
1177                         return $this->makeKnownLinkObj( Title::makeTitle( NS_SPECIAL, 'Movepage' ),
1178                           wfMsg( 'movethispage' ), 'target=' . $wgTitle->getPrefixedURL() );
1179                 } else {
1180                         // no message if page is protected - would be redundant
1181                         return '';
1182                 }
1183         }
1184
1185         function historyLink() {
1186                 global $wgTitle;
1187
1188                 return $this->makeKnownLinkObj( $wgTitle,
1189                   wfMsg( 'history' ), 'action=history' );
1190         }
1191
1192         function whatLinksHere() {
1193                 global $wgTitle;
1194
1195                 return $this->makeKnownLinkObj( Title::makeTitle( NS_SPECIAL, 'Whatlinkshere' ),
1196                   wfMsg( 'whatlinkshere' ), 'target=' . $wgTitle->getPrefixedURL() );
1197         }
1198
1199         function userContribsLink() {
1200                 global $wgTitle;
1201
1202                 return $this->makeKnownLinkObj( Title::makeTitle( NS_SPECIAL, 'Contributions' ),
1203                   wfMsg( 'contributions' ), 'target=' . $wgTitle->getPartialURL() );
1204         }
1205
1206         function showEmailUser( $id ) {
1207                 global $wgEnableEmail, $wgEnableUserEmail, $wgUser;
1208                 return $wgEnableEmail &&
1209                        $wgEnableUserEmail &&
1210                        $wgUser->isLoggedIn() && # show only to signed in users
1211                        0 != $id; # we can only email to non-anons ..
1212 #                      '' != $id->getEmail() && # who must have an email address stored ..
1213 #                      0 != $id->getEmailauthenticationtimestamp() && # .. which is authenticated
1214 #                      1 != $wgUser->getOption('disablemail'); # and not disabled
1215         }
1216
1217         function emailUserLink() {
1218                 global $wgTitle;
1219
1220                 return $this->makeKnownLinkObj( Title::makeTitle( NS_SPECIAL, 'Emailuser' ),
1221                   wfMsg( 'emailuser' ), 'target=' . $wgTitle->getPartialURL() );
1222         }
1223
1224         function watchPageLinksLink() {
1225                 global $wgOut, $wgTitle;
1226
1227                 if ( ! $wgOut->isArticleRelated() ) {
1228                         return '(' . wfMsg( 'notanarticle' ) . ')';
1229                 } else {
1230                         return $this->makeKnownLinkObj( Title::makeTitle( NS_SPECIAL,
1231                           'Recentchangeslinked' ), wfMsg( 'recentchangeslinked' ),
1232                           'target=' . $wgTitle->getPrefixedURL() );
1233                 }
1234         }
1235
1236         function trackbackLink() {
1237                 global $wgTitle;
1238
1239                 return "<a href=\"" . $wgTitle->trackbackURL() . "\">"
1240                         . wfMsg('trackbacklink') . "</a>";
1241         }
1242
1243         function otherLanguages() {
1244                 global $wgOut, $wgContLang, $wgTitle, $wgHideInterlanguageLinks;
1245
1246                 if ( $wgHideInterlanguageLinks ) {
1247                         return '';
1248                 }
1249
1250                 $a = $wgOut->getLanguageLinks();
1251                 if ( 0 == count( $a ) ) {
1252                         return '';
1253                 }
1254
1255                 $s = wfMsg( 'otherlanguages' ) . ': ';
1256                 $first = true;
1257                 if($wgContLang->isRTL()) $s .= '<span dir="LTR">';
1258                 foreach( $a as $l ) {
1259                         if ( ! $first ) { $s .= ' | '; }
1260                         $first = false;
1261
1262                         $nt = Title::newFromText( $l );
1263                         $url = $nt->escapeFullURL();
1264                         $text = $wgContLang->getLanguageName( $nt->getInterwiki() );
1265
1266                         if ( '' == $text ) { $text = $l; }
1267                         $style = $this->getExternalLinkAttributes( $l, $text );
1268                         $s .= "<a href=\"{$url}\"{$style}>{$text}</a>";
1269                 }
1270                 if($wgContLang->isRTL()) $s .= '</span>';
1271                 return $s;
1272         }
1273
1274         function bugReportsLink() {
1275                 $s = $this->makeKnownLink( wfMsgForContent( 'bugreportspage' ),
1276                   wfMsg( 'bugreports' ) );
1277                 return $s;
1278         }
1279
1280         function dateLink() {
1281                 global $wgLinkCache;
1282                 $t1 = Title::newFromText( gmdate( 'F j' ) );
1283                 $t2 = Title::newFromText( gmdate( 'Y' ) );
1284
1285                 $wgLinkCache->suspend();
1286                 $id = $t1->getArticleID();
1287                 $wgLinkCache->resume();
1288
1289                 if ( 0 == $id ) {
1290                         $s = $this->makeBrokenLink( $t1->getText() );
1291                 } else {
1292                         $s = $this->makeKnownLink( $t1->getText() );
1293                 }
1294                 $s .= ', ';
1295
1296                 $wgLinkCache->suspend();
1297                 $id = $t2->getArticleID();
1298                 $wgLinkCache->resume();
1299
1300                 if ( 0 == $id ) {
1301                         $s .= $this->makeBrokenLink( $t2->getText() );
1302                 } else {
1303                         $s .= $this->makeKnownLink( $t2->getText() );
1304                 }
1305                 return $s;
1306         }
1307
1308         function talkLink() {
1309                 global $wgTitle, $wgLinkCache;
1310
1311                 if ( NS_SPECIAL == $wgTitle->getNamespace() ) {
1312                         # No discussion links for special pages
1313                         return '';
1314                 }
1315
1316                 if( $wgTitle->isTalkPage() ) {
1317                         $link = $wgTitle->getSubjectPage();
1318                         switch( $link->getNamespace() ) {
1319                         case NS_MAIN:
1320                                 $text = wfMsg('articlepage');
1321                                 break;
1322                         case NS_USER:
1323                                 $text = wfMsg('userpage');
1324                                 break;
1325                         case NS_PROJECT:
1326                                 $text = wfMsg('wikipediapage');
1327                                 break;
1328                         case NS_IMAGE:
1329                                 $text = wfMsg('imagepage');
1330                                 break;
1331                         default:
1332                                 $text= wfMsg('articlepage');
1333                         }
1334                 } else {
1335                         $link = $wgTitle->getTalkPage();
1336                         $text = wfMsg( 'talkpage' );
1337                 }
1338
1339                 $wgLinkCache->suspend();
1340                 $s = $this->makeLinkObj( $link, $text );
1341                 $wgLinkCache->resume();
1342
1343                 return $s;
1344         }
1345
1346         function commentLink() {
1347                 global $wgContLang, $wgTitle, $wgLinkCache;
1348
1349                 if ( $wgTitle->getNamespace() == NS_SPECIAL ) {
1350                         return '';
1351                 }
1352                 return $this->makeKnownLinkObj( $wgTitle->getTalkPage(),
1353                         wfMsg( 'postcomment' ), 'action=edit&section=new' );
1354         }
1355
1356         /* these are used extensively in SkinPHPTal, but also some other places */
1357         /*static*/ function makeSpecialUrl( $name, $urlaction='' ) {
1358                 $title = Title::makeTitle( NS_SPECIAL, $name );
1359                 return $title->getLocalURL( $urlaction );
1360         }
1361
1362         /*static*/ function makeI18nUrl ( $name, $urlaction='' ) {
1363                 $title = Title::newFromText( wfMsgForContent($name) );
1364                 $this->checkTitle($title, $name);
1365                 return $title->getLocalURL( $urlaction );
1366         }
1367
1368         /*static*/ function makeUrl ( $name, $urlaction='' ) {
1369                 $title = Title::newFromText( $name );
1370                 $this->checkTitle($title, $name);
1371                 return $title->getLocalURL( $urlaction );
1372         }
1373
1374         # If url string starts with http, consider as external URL, else
1375         # internal
1376         /*static*/ function makeInternalOrExternalUrl( $name ) {
1377                 if ( preg_match( '/^(?:' . wfUrlProtocols() . ')/', $name ) ) {
1378                         return $name;
1379                 } else {
1380                         return $this->makeUrl( $name );
1381                 }
1382         }
1383
1384         # this can be passed the NS number as defined in Language.php
1385         /*static*/ function makeNSUrl( $name, $urlaction='', $namespace=NS_MAIN ) {
1386                 $title = Title::makeTitleSafe( $namespace, $name );
1387                 $this->checkTitle($title, $name);
1388                 return $title->getLocalURL( $urlaction );
1389         }
1390
1391         /* these return an array with the 'href' and boolean 'exists' */
1392         /*static*/ function makeUrlDetails ( $name, $urlaction='' ) {
1393                 $title = Title::newFromText( $name );
1394                 $this->checkTitle($title, $name);
1395                 return array(
1396                         'href' => $title->getLocalURL( $urlaction ),
1397                         'exists' => $title->getArticleID() != 0?true:false
1398                 );
1399         }
1400
1401         /**
1402          * Make URL details where the article exists (or at least it's convenient to think so)
1403          */
1404         function makeKnownUrlDetails( $name, $urlaction='' ) {
1405                 $title = Title::newFromText( $name );
1406                 $this->checkTitle($title, $name);
1407                 return array(
1408                         'href' => $title->getLocalURL( $urlaction ),
1409                         'exists' => true
1410                 );
1411         }
1412
1413         # make sure we have some title to operate on
1414         /*static*/ function checkTitle ( &$title, &$name ) {
1415                 if(!is_object($title)) {
1416                         $title = Title::newFromText( $name );
1417                         if(!is_object($title)) {
1418                                 $title = Title::newFromText( '--error: link target missing--' );
1419                         }
1420                 }
1421         }
1422
1423         /**
1424          * Build an array that represents the sidebar(s), the navigation bar among them
1425          *
1426          * @return array
1427          * @access private
1428          */
1429         function buildSidebar() {
1430                 global $wgTitle, $action;
1431
1432                 $fname = 'SkinTemplate::buildSidebar';
1433                 $pageurl = $wgTitle->getLocalURL();
1434                 wfProfileIn( $fname );
1435
1436                 $bar = array();
1437                 $lines = explode( "\n", wfMsgForContent( 'sidebar' ) );
1438                 foreach ($lines as $line) {
1439                         if (strpos($line, '*') !== 0)
1440                                 continue;
1441                         if (strpos($line, '**') !== 0) {
1442                                 $line = trim($line, '* ');
1443                                 $heading = $line;
1444                         } else {
1445                                 if (strpos($line, '|') !== false) { // sanity check
1446                                         $line = explode( '|' , trim($line, '* '), 2 );
1447                                         $link = wfMsgForContent( $line[0] );
1448                                         if ($link == '-')
1449                                                 continue;
1450                                         if (wfEmptyMsg($line[1], $text = wfMsg($line[1])))
1451                                                 $text = $line[1];
1452                                         if (wfEmptyMsg($line[0], $link))
1453                                                 $link = $line[0];
1454                                         $href = $this->makeInternalOrExternalUrl( $link );
1455                                         $bar[$heading][] = array(
1456                                                 'text' => $text,
1457                                                 'href' => $href,
1458                                                 'id' => 'n-' . strtr($line[1], ' ', '-'),
1459                                                 'active' => $pageurl == $href
1460                                         );
1461                                 } else { continue; }
1462                         }
1463                 }
1464
1465                 wfProfileOut( $fname );
1466                 return $bar;
1467         }
1468 }
1469
1470 }
1471 ?>