includes/Skin.php

   1 <?php
   2 if ( ! defined( 'MEDIAWIKI' ) )
   3         die( -1 );
   4
   5 /**
   6  *
   7  * @package MediaWiki
   8  * @subpackage Skins
   9  */
  10
  11 # See skin.txt
  12 require_once( 'Linker.php' );
  13 require_once( 'Image.php' );
  14
  15 # Get a list of all skins available in /skins/
  16 # Build using the regular expression '^(.*).php$'
  17 # Array keys are all lower case, array value keep the case used by filename
  18 #
  19
  20 $skinDir = dir($IP.'/skins');
  21
  22 # while code from www.php.net
  23 while (false !== ($file = $skinDir->read())) {
  24         // Skip non-PHP files, hidden files, and '.dep' includes
  25         if(preg_match('/^([^.]*)\.php$/',$file, $matches)) {
  26                 $aSkin = $matches[1];
  27                 $wgValidSkinNames[strtolower($aSkin)] = $aSkin;
  28         }
  29 }
  30 $skinDir->close();
  31 unset($matches);
  32
  33 /**
  34  * The main skin class that provide methods and properties for all other skins.
  35  * This base class is also the "Standard" skin.
  36  * @package MediaWiki
  37  */
  38 class Skin extends Linker {
  39         /**#@+
  40          * @private
  41          */
  42         private
  43                 $lastdate,
  44                 $lastline,
  45                 $rc_cache,     # Cache for Enhanced Recent Changes
  46                 $rcCacheIndex, # Recent Changes Cache Counter for visibility toggle
  47                 $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.
 119                 wfSuppressWarnings();
 120                 // Preload base classes to work around APC/PHP5 bug
 121                 include_once( $IP.'/skins/'.$skinName.'.deps.php' );
 122                 wfRestoreWarnings();
 123                 require_once( $IP.'/skins/'.$skinName.'.php' );
 124
 125                 # Check if we got if not failback to default skin
 126                 $className = 'Skin'.$skinName;
 127                 if( !class_exists( $className ) ) {
 128                         # DO NOT die if the class isn't found. This breaks maintenance
 129                         # scripts and can cause a user account to be unrecoverable
 130                         # except by SQL manipulation if a previously valid skin name
 131                         # is no longer valid.
 132                         wfDebug( "Skin class does not exist: $className\n" );
 133                         $className = 'SkinStandard';
 134                         require_once( $IP.'/skins/Standard.php' );
 135                 }
 136                 $skin =& new $className;
 137                 return $skin;
 138         }
 139
 140         /** @return string path to the skin stylesheet */
 141         function getStylesheet() {
 142                 return 'common/wikistandard.css?1';
 143         }
 144
 145         /** @return string skin name */
 146         function getSkinName() {
 147                 return 'standard';
 148         }
 149
 150         function qbSetting() {
 151                 global $wgOut, $wgUser;
 152
 153                 if ( $wgOut->isQuickbarSuppressed() ) { return 0; }
 154                 $q = $wgUser->getOption( 'quickbar' );
 155                 if ( '' == $q ) { $q = 0; }
 156                 return $q;
 157         }
 158
 159         function initPage( &$out ) {
 160                 global $wgFavicon;
 161
 162                 $fname = 'Skin::initPage';
 163                 wfProfileIn( $fname );
 164
 165                 if( false !== $wgFavicon ) {
 166                         $out->addLink( array( 'rel' => 'shortcut icon', 'href' => $wgFavicon ) );
 167                 }
 168
 169                 $this->addMetadataLinks($out);
 170
 171                 $this->mRevisionId = $out->mRevisionId;
 172
 173                 $this->preloadExistence();
 174
 175                 wfProfileOut( $fname );
 176         }
 177
 178         /**
 179          * Preload the existence of three commonly-requested pages in a single query
 180          */
 181         function preloadExistence() {
 182                 global $wgUser, $wgTitle;
 183
 184                 if ( $wgTitle->isTalkPage() ) {
 185                         $otherTab = $wgTitle->getSubjectPage();
 186                 } else {
 187                         $otherTab = $wgTitle->getTalkPage();
 188                 }
 189                 $lb = new LinkBatch( array(
 190                         $wgUser->getUserPage(),
 191                         $wgUser->getTalkPage(),
 192                         $otherTab
 193                 ));
 194                 $lb->execute();
 195         }
 196
 197         function addMetadataLinks( &$out ) {
 198                 global $wgTitle, $wgEnableDublinCoreRdf, $wgEnableCreativeCommonsRdf;
 199                 global $wgRightsPage, $wgRightsUrl;
 200
 201                 if( $out->isArticleRelated() ) {
 202                         # note: buggy CC software only reads first "meta" link
 203                         if( $wgEnableCreativeCommonsRdf ) {
 204                                 $out->addMetadataLink( array(
 205                                         'title' => 'Creative Commons',
 206                                         'type' => 'application/rdf+xml',
 207                                         'href' => $wgTitle->getLocalURL( 'action=creativecommons') ) );
 208                         }
 209                         if( $wgEnableDublinCoreRdf ) {
 210                                 $out->addMetadataLink( array(
 211                                         'title' => 'Dublin Core',
 212                                         'type' => 'application/rdf+xml',
 213                                         'href' => $wgTitle->getLocalURL( 'action=dublincore' ) ) );
 214                         }
 215                 }
 216                 $copyright = '';
 217                 if( $wgRightsPage ) {
 218                         $copy = Title::newFromText( $wgRightsPage );
 219                         if( $copy ) {
 220                                 $copyright = $copy->getLocalURL();
 221                         }
 222                 }
 223                 if( !$copyright && $wgRightsUrl ) {
 224                         $copyright = $wgRightsUrl;
 225                 }
 226                 if( $copyright ) {
 227                         $out->addLink( array(
 228                                 'rel' => 'copyright',
 229                                 'href' => $copyright ) );
 230                 }
 231         }
 232
 233         function outputPage( &$out ) {
 234                 global $wgDebugComments;
 235
 236                 wfProfileIn( 'Skin::outputPage' );
 237                 $this->initPage( $out );
 238
 239                 $out->out( $out->headElement() );
 240
 241                 $out->out( "\n<body" );
 242                 $ops = $this->getBodyOptions();
 243                 foreach ( $ops as $name => $val ) {
 244                         $out->out( " $name='$val'" );
 245                 }
 246                 $out->out( ">\n" );
 247                 if ( $wgDebugComments ) {
 248                         $out->out( "<!-- Wiki debugging output:\n" .
 249                           $out->mDebugtext . "-->\n" );
 250                 }
 251
 252                 $out->out( $this->beforeContent() );
 253
 254                 $out->out( $out->mBodytext . "\n" );
 255
 256                 $out->out( $this->afterContent() );
 257
 258                 $out->out( $out->reportTime() );
 259
 260                 $out->out( "\n</body></html>" );
 261         }
 262
 263         function getHeadScripts() {
 264                 global $wgStylePath, $wgUser, $wgAllowUserJs, $wgJsMimeType;
 265                 $r = "<script type=\"{$wgJsMimeType}\" src=\"{$wgStylePath}/common/wikibits.js\"></script>\n";
 266                 if( $wgAllowUserJs && $wgUser->isLoggedIn() ) {
 267                         $userpage = $wgUser->getUserPage();
 268                         $userjs = htmlspecialchars( $this->makeUrl(
 269                                 $userpage->getPrefixedText().'/'.$this->getSkinName().'.js',
 270                                 'action=raw&ctype='.$wgJsMimeType));
 271                         $r .= '<script type="'.$wgJsMimeType.'" src="'.$userjs."\"></script>\n";
 272                 }
 273                 return $r;
 274         }
 275
 276         /**
 277          * To make it harder for someone to slip a user a fake
 278          * user-JavaScript or user-CSS preview, a random token
 279          * is associated with the login session. If it's not
 280          * passed back with the preview request, we won't render
 281          * the code.
 282          *
 283          * @param string $action
 284          * @return bool
 285          * @private
 286          */
 287         function userCanPreview( $action ) {
 288                 global $wgTitle, $wgRequest, $wgUser;
 289
 290                 if( $action != 'submit' )
 291                         return false;
 292                 if( !$wgRequest->wasPosted() )
 293                         return false;
 294                 if( !$wgTitle->userCanEditCssJsSubpage() )
 295                         return false;
 296                 return $wgUser->matchEditToken(
 297                         $wgRequest->getVal( 'wpEditToken' ) );
 298         }
 299
 300         # get the user/site-specific stylesheet, SkinTemplate loads via RawPage.php (settings are cached that way)
 301         function getUserStylesheet() {
 302                 global $wgStylePath, $wgRequest, $wgContLang, $wgSquidMaxage;
 303                 $sheet = $this->getStylesheet();
 304                 $action = $wgRequest->getText('action');
 305                 $s = "@import \"$wgStylePath/$sheet\";\n";
 306                 if($wgContLang->isRTL()) $s .= "@import \"$wgStylePath/common/common_rtl.css\";\n";
 307
 308                 $query = "action=raw&ctype=text/css&smaxage=$wgSquidMaxage";
 309                 $s .= '@import "' . $this->makeNSUrl( 'Common.css', $query, NS_MEDIAWIKI ) . "\";\n" .
 310                         '@import "'.$this->makeNSUrl( ucfirst( $this->getSkinName() . '.css' ), $query, NS_MEDIAWIKI ) . "\";\n";
 311
 312                 $s .= $this->doGetUserStyles();
 313                 return $s."\n";
 314         }
 315
 316         /**
 317          * placeholder, returns generated js in monobook
 318          */
 319         function getUserJs() { return; }
 320
 321         /**
 322          * Return html code that include User stylesheets
 323          */
 324         function getUserStyles() {
 325                 $s = "<style type='text/css'>\n";
 326                 $s .= "/*/*/ /*<![CDATA[*/\n"; # <-- Hide the styles from Netscape 4 without hiding them from IE/Mac
 327                 $s .= $this->getUserStylesheet();
 328                 $s .= "/*]]>*/ /* */\n";
 329                 $s .= "</style>\n";
 330                 return $s;
 331         }
 332
 333         /**
 334          * Some styles that are set by user through the user settings interface.
 335          * @todo undefined variables (bug #4940)
 336          */
 337         function doGetUserStyles() {
 338                 global $wgUser, $wgUser, $wgRequest, $wgTitle, $wgAllowUserCss;
 339
 340                 $s = '';
 341
 342                 if( $wgAllowUserCss && $wgUser->isLoggedIn() ) { # logged in
 343                         # FIXME: $action undefined, bug #4940
 344                         if($wgTitle->isCssSubpage() && $this->userCanPreview( $action ) ) {
 345                                 $s .= $wgRequest->getText('wpTextbox1');
 346                         } else {
 347                                 $userpage = $wgUser->getUserPage();
 348                                 $s.= '@import "'.$this->makeUrl(
 349                                         $userpage->getPrefixedText().'/'.$this->getSkinName().'.css',
 350                                         'action=raw&ctype=text/css').'";'."\n";
 351                         }
 352                 }
 353
 354                 return $s . $this->reallyDoGetUserStyles();
 355         }
 356
 357         function reallyDoGetUserStyles() {
 358                 global $wgUser;
 359                 $s = '';
 360                 if (($undopt = $wgUser->getOption("underline")) != 2) {
 361                         $underline = $undopt ? 'underline' : 'none';
 362                         $s .= "a { text-decoration: $underline; }\n";
 363                 }
 364                 if( $wgUser->getOption( 'highlightbroken' ) ) {
 365                         $s .= "a.new, #quickbar a.new { color: #CC2200; }\n";
 366                 } else {
 367                         $s .= <<<END
 368 a.new, #quickbar a.new,
 369 a.stub, #quickbar a.stub {
 370         color: inherit;
 371         text-decoration: inherit;
 372 }
 373 a.new:after, #quickbar a.new:after {
 374         content: "?";
 375         color: #CC2200;
 376         text-decoration: $underline;
 377 }
 378 a.stub:after, #quickbar a.stub:after {
 379         content: "!";
 380         color: #772233;
 381         text-decoration: $underline;
 382 }
 383 END;
 384                 }
 385                 if( $wgUser->getOption( 'justify' ) ) {
 386                         $s .= "#article, #bodyContent { text-align: justify; }\n";
 387                 }
 388                 if( !$wgUser->getOption( 'showtoc' ) ) {
 389                         $s .= "#toc { display: none; }\n";
 390                 }
 391                 if( !$wgUser->getOption( 'editsection' ) ) {
 392                         $s .= ".editsection { display: none; }\n";
 393                 }
 394                 return $s;
 395         }
 396
 397         function getBodyOptions() {
 398                 global $wgUser, $wgTitle, $wgOut, $wgRequest;
 399
 400                 extract( $wgRequest->getValues( 'oldid', 'redirect', 'diff' ) );
 401
 402                 if ( 0 != $wgTitle->getNamespace() ) {
 403                         $a = array( 'bgcolor' => '#ffffec' );
 404                 }
 405                 else $a = array( 'bgcolor' => '#FFFFFF' );
 406                 if($wgOut->isArticle() && $wgUser->getOption('editondblclick') &&
 407                   $wgTitle->userCanEdit() ) {
 408                         $t = wfMsg( 'editthispage' );
 409                         $s = $wgTitle->getFullURL( $this->editUrlOptions() );
 410                         $s = 'document.location = "' .wfEscapeJSString( $s ) .'";';
 411                         $a += array ('ondblclick' => $s);
 412
 413                 }
 414                 $a['onload'] = $wgOut->getOnloadHandler();
 415                 if( $wgUser->getOption( 'editsectiononrightclick' ) ) {
 416                         if( $a['onload'] != '' ) {
 417                                 $a['onload'] .= ';';
 418                         }
 419                         $a['onload'] .= 'setupRightClickEdit()';
 420                 }
 421                 return $a;
 422         }
 423
 424         /**
 425          * URL to the logo
 426          */
 427         function getLogo() {
 428                 global $wgLogo;
 429                 return $wgLogo;
 430         }
 431
 432         /**
 433          * This will be called immediately after the <body> tag.  Split into
 434          * two functions to make it easier to subclass.
 435          */
 436         function beforeContent() {
 437                 return $this->doBeforeContent();
 438         }
 439
 440         function doBeforeContent() {
 441                 global $wgContLang;
 442                 $fname = 'Skin::doBeforeContent';
 443                 wfProfileIn( $fname );
 444
 445                 $s = '';
 446                 $qb = $this->qbSetting();
 447
 448                 if( $langlinks = $this->otherLanguages() ) {
 449                         $rows = 2;
 450                         $borderhack = '';
 451                 } else {
 452                         $rows = 1;
 453                         $langlinks = false;
 454                         $borderhack = 'class="top"';
 455                 }
 456
 457                 $s .= "\n<div id='content'>\n<div id='topbar'>\n" .
 458                   "<table border='0' cellspacing='0' width='98%'>\n<tr>\n";
 459
 460                 $shove = ($qb != 0);
 461                 $left = ($qb == 1 || $qb == 3);
 462                 if($wgContLang->isRTL()) $left = !$left;
 463
 464                 if ( !$shove ) {
 465                         $s .= "<td class='top' align='left' valign='top' rowspan='{$rows}'>\n" .
 466                           $this->logoText() . '</td>';
 467                 } elseif( $left ) {
 468                         $s .= $this->getQuickbarCompensator( $rows );
 469                 }
 470                 $l = $wgContLang->isRTL() ? 'right' : 'left';
 471                 $s .= "<td {$borderhack} align='$l' valign='top'>\n";
 472
 473                 $s .= $this->topLinks() ;
 474                 $s .= "<p class='subtitle'>" . $this->pageTitleLinks() . "</p>\n";
 475
 476                 $r = $wgContLang->isRTL() ? "left" : "right";
 477                 $s .= "</td>\n<td {$borderhack} valign='top' align='$r' nowrap='nowrap'>";
 478                 $s .= $this->nameAndLogin();
 479                 $s .= "\n<br />" . $this->searchForm() . "</td>";
 480
 481                 if ( $langlinks ) {
 482                         $s .= "</tr>\n<tr>\n<td class='top' colspan=\"2\">$langlinks</td>\n";
 483                 }
 484
 485                 if ( $shove && !$left ) { # Right
 486                         $s .= $this->getQuickbarCompensator( $rows );
 487                 }
 488                 $s .= "</tr>\n</table>\n</div>\n";
 489                 $s .= "\n<div id='article'>\n";
 490
 491                 $notice = wfGetSiteNotice();
 492                 if( $notice ) {
 493                         $s .= "\n<div id='siteNotice'>$notice</div>\n";
 494                 }
 495                 $s .= $this->pageTitle();
 496                 $s .= $this->pageSubtitle() ;
 497                 $s .= $this->getCategories();
 498                 wfProfileOut( $fname );
 499                 return $s;
 500         }
 501
 502
 503         function getCategoryLinks () {
 504                 global $wgOut, $wgTitle, $wgUseCategoryBrowser;
 505                 global $wgContLang;
 506
 507                 if( count( $wgOut->mCategoryLinks ) == 0 ) return '';
 508
 509                 # Separator
 510                 $sep = wfMsgHtml( 'catseparator' );
 511
 512                 // Use Unicode bidi embedding override characters,
 513                 // to make sure links don't smash each other up in ugly ways.
 514                 $dir = $wgContLang->isRTL() ? 'rtl' : 'ltr';
 515                 $embed = "<span dir='$dir'>";
 516                 $pop = '</span>';
 517                 $t = $embed . implode ( "{$pop} {$sep} {$embed}" , $wgOut->mCategoryLinks ) . $pop;
 518
 519                 $msg = count( $wgOut->mCategoryLinks ) === 1 ? 'categories1' : 'categories';
 520                 $s = $this->makeKnownLinkObj( Title::makeTitle( NS_SPECIAL, 'Categories' ),
 521                         wfMsg( $msg ), 'article=' . urlencode( $wgTitle->getPrefixedDBkey() ) )
 522                         . ': ' . $t;
 523
 524                 # optional 'dmoz-like' category browser. Will be shown under the list
 525                 # of categories an article belong to
 526                 if($wgUseCategoryBrowser) {
 527                         $s .= '<br /><hr />';
 528
 529                         # get a big array of the parents tree
 530                         $parenttree = $wgTitle->getParentCategoryTree();
 531                         # Skin object passed by reference cause it can not be
 532                         # accessed under the method subfunction drawCategoryBrowser
 533                         $tempout = explode("\n", Skin::drawCategoryBrowser($parenttree, $this) );
 534                         # Clean out bogus first entry and sort them
 535                         unset($tempout[0]);
 536                         asort($tempout);
 537                         # Output one per line
 538                         $s .= implode("<br />\n", $tempout);
 539                 }
 540
 541                 return $s;
 542         }
 543
 544         /** Render the array as a serie of links.
 545          * @param $tree Array: categories tree returned by Title::getParentCategoryTree
 546          * @param &skin Object: skin passed by reference
 547          * @return String separated by &gt;, terminate with "\n"
 548          */
 549         function drawCategoryBrowser($tree, &$skin) {
 550                 $return = '';
 551                 foreach ($tree as $element => $parent) {
 552                         if (empty($parent)) {
 553                                 # element start a new list
 554                                 $return .= "\n";
 555                         } else {
 556                                 # grab the others elements
 557                                 $return .= Skin::drawCategoryBrowser($parent, $skin) . ' &gt; ';
 558                         }
 559                         # add our current element to the list
 560                         $eltitle = Title::NewFromText($element);
 561                         $return .=  $skin->makeLinkObj( $eltitle, $eltitle->getText() ) ;
 562                 }
 563                 return $return;
 564         }
 565
 566         function getCategories() {
 567                 $catlinks=$this->getCategoryLinks();
 568                 if(!empty($catlinks)) {
 569                         return "<p class='catlinks'>{$catlinks}</p>";
 570                 }
 571         }
 572
 573         function getQuickbarCompensator( $rows = 1 ) {
 574                 return "<td width='152' rowspan='{$rows}'>&nbsp;</td>";
 575         }
 576
 577         /**
 578          * This gets called immediately before the \</body\> tag.
 579          * @return String HTML to be put after \</body\> ???
 580          */
 581         function afterContent() {
 582                 $printfooter = "<div class=\"printfooter\">\n" . $this->printFooter() . "</div>\n";
 583                 return $printfooter . $this->doAfterContent();
 584         }
 585
 586         /** @return string Retrievied from HTML text */
 587         function printSource() {
 588                 global $wgTitle;
 589                 $url = htmlspecialchars( $wgTitle->getFullURL() );
 590                 return wfMsg( 'retrievedfrom', '<a href="'.$url.'">'.$url.'</a>' );
 591         }
 592
 593         function printFooter() {
 594                 return "<p>" .  $this->printSource() .
 595                         "</p>\n\n<p>" . $this->pageStats() . "</p>\n";
 596         }
 597
 598         /** overloaded by derived classes */
 599         function doAfterContent() { }
 600
 601         function pageTitleLinks() {
 602                 global $wgOut, $wgTitle, $wgUser, $wgRequest;
 603
 604                 extract( $wgRequest->getValues( 'oldid', 'diff' ) );
 605                 $action = $wgRequest->getText( 'action' );
 606
 607                 $s = $this->printableLink();
 608                 $disclaimer = $this->disclaimerLink(); # may be empty
 609                 if( $disclaimer ) {
 610                         $s .= ' | ' . $disclaimer;
 611                 }
 612                 $privacy = $this->privacyLink(); # may be empty too
 613                 if( $privacy ) {
 614                         $s .= ' | ' . $privacy;
 615                 }
 616
 617                 if ( $wgOut->isArticleRelated() ) {
 618                         if ( $wgTitle->getNamespace() == NS_IMAGE ) {
 619                                 $name = $wgTitle->getDBkey();
 620                                 $image = new Image( $wgTitle );
 621                                 if( $image->exists() ) {
 622                                         $link = htmlspecialchars( $image->getURL() );
 623                                         $style = $this->getInternalLinkAttributes( $link, $name );
 624                                         $s .= " | <a href=\"{$link}\"{$style}>{$name}</a>";
 625                                 }
 626                         }
 627                 }
 628                 if ( 'history' == $action || isset( $diff ) || isset( $oldid ) ) {
 629                         $s .= ' | ' . $this->makeKnownLinkObj( $wgTitle,
 630                                         wfMsg( 'currentrev' ) );
 631                 }
 632
 633                 if ( $wgUser->getNewtalk() ) {
 634                         # do not show "You have new messages" text when we are viewing our
 635                         # own talk page
 636                         if( !$wgTitle->equals( $wgUser->getTalkPage() ) ) {
 637                                 $tl = $this->makeKnownLinkObj( $wgUser->getTalkPage(), wfMsgHtml( 'newmessageslink' ), 'redirect=no' );
 638                                 $dl = $this->makeKnownLinkObj( $wgUser->getTalkPage(), wfMsgHtml( 'newmessagesdifflink' ), 'diff=cur' );
 639                                 $s.= ' | <strong>'. wfMsg( 'youhavenewmessages', $tl, $dl ) . '</strong>';
 640                                 # disable caching
 641                                 $wgOut->setSquidMaxage(0);
 642                                 $wgOut->enableClientCache(false);
 643                         }
 644                 }
 645
 646                 $undelete = $this->getUndeleteLink();
 647                 if( !empty( $undelete ) ) {
 648                         $s .= ' | '.$undelete;
 649                 }
 650                 return $s;
 651         }
 652
 653         function getUndeleteLink() {
 654                 global $wgUser, $wgTitle, $wgContLang, $action;
 655                 if(     $wgUser->isAllowed( 'deletedhistory' ) &&
 656                         (($wgTitle->getArticleId() == 0) || ($action == "history")) &&
 657                         ($n = $wgTitle->isDeleted() ) )
 658                 {
 659                         if ( $wgUser->isAllowed( 'delete' ) ) {
 660                                 $msg = 'thisisdeleted';
 661                         } else {
 662                                 $msg = 'viewdeleted';
 663                         }
 664                         return wfMsg( $msg,
 665                                 $this->makeKnownLink(
 666                                         $wgContLang->SpecialPage( 'Undelete/' . $wgTitle->getPrefixedDBkey() ),
 667                                         wfMsg( 'restorelink' . ($n == 1 ? '1' : ''), $n ) ) );
 668                 }
 669                 return '';
 670         }
 671
 672         function printableLink() {
 673                 global $wgOut, $wgFeedClasses, $wgRequest;
 674
 675                 $baseurl = $_SERVER['REQUEST_URI'];
 676                 if( strpos( '?', $baseurl ) == false ) {
 677                         $baseurl .= '?';
 678                 } else {
 679                         $baseurl .= '&';
 680                 }
 681                 $baseurl = htmlspecialchars( $baseurl );
 682                 $printurl = $wgRequest->escapeAppendQuery( 'printable=yes' );
 683
 684                 $s = "<a href=\"$printurl\">" . wfMsg( 'printableversion' ) . '</a>';
 685                 if( $wgOut->isSyndicated() ) {
 686                         foreach( $wgFeedClasses as $format => $class ) {
 687                                 $feedurl = $wgRequest->escapeAppendQuery( "feed=$format" );
 688                                 $s .= " | <a href=\"$feedurl\">{$format}</a>";
 689                         }
 690                 }
 691                 return $s;
 692         }
 693
 694         function pageTitle() {
 695                 global $wgOut;
 696                 $s = '<h1 class="pagetitle">' . htmlspecialchars( $wgOut->getPageTitle() ) . '</h1>';
 697                 return $s;
 698         }
 699
 700         function pageSubtitle() {
 701                 global $wgOut;
 702
 703                 $sub = $wgOut->getSubtitle();
 704                 if ( '' == $sub ) {
 705                         global $wgExtraSubtitle;
 706                         $sub = wfMsg( 'tagline' ) . $wgExtraSubtitle;
 707                 }
 708                 $subpages = $this->subPageSubtitle();
 709                 $sub .= !empty($subpages)?"</p><p class='subpages'>$subpages":'';
 710                 $s = "<p class='subtitle'>{$sub}</p>\n";
 711                 return $s;
 712         }
 713
 714         function subPageSubtitle() {
 715                 global $wgOut,$wgTitle,$wgNamespacesWithSubpages;
 716                 $subpages = '';
 717                 if($wgOut->isArticle() && !empty($wgNamespacesWithSubpages[$wgTitle->getNamespace()])) {
 718                         $ptext=$wgTitle->getPrefixedText();
 719                         if(preg_match('/\//',$ptext)) {
 720                                 $links = explode('/',$ptext);
 721                                 $c = 0;
 722                                 $growinglink = '';
 723                                 foreach($links as $link) {
 724                                         $c++;
 725                                         if ($c<count($links)) {
 726                                                 $growinglink .= $link;
 727                                                 $getlink = $this->makeLink( $growinglink, htmlspecialchars( $link ) );
 728                                                 if(preg_match('/class="new"/i',$getlink)) { break; } # this is a hack, but it saves time
 729                                                 if ($c>1) {
 730                                                         $subpages .= ' | ';
 731                                                 } else  {
 732                                                         $subpages .= '&lt; ';
 733                                                 }
 734                                                 $subpages .= $getlink;
 735                                                 $growinglink .= '/';
 736                                         }
 737                                 }
 738                         }
 739                 }
 740                 return $subpages;
 741         }
 742
 743         function nameAndLogin() {
 744                 global $wgUser, $wgTitle, $wgLang, $wgContLang, $wgShowIPinHeader;
 745
 746                 $li = $wgContLang->specialPage( 'Userlogin' );
 747                 $lo = $wgContLang->specialPage( 'Userlogout' );
 748
 749                 $s = '';
 750                 if ( $wgUser->isAnon() ) {
 751                         if( $wgShowIPinHeader && isset( $_COOKIE[ini_get('session.name')] ) ) {
 752                                 $n = wfGetIP();
 753
 754                                 $tl = $this->makeKnownLinkObj( $wgUser->getTalkPage(),
 755                                   $wgLang->getNsText( NS_TALK ) );
 756
 757                                 $s .= $n . ' ('.$tl.')';
 758                         } else {
 759                                 $s .= wfMsg('notloggedin');
 760                         }
 761
 762                         $rt = $wgTitle->getPrefixedURL();
 763                         if ( 0 == strcasecmp( urlencode( $lo ), $rt ) ) {
 764                                 $q = '';
 765                         } else { $q = "returnto={$rt}"; }
 766
 767                         $s .= "\n<br />" . $this->makeKnownLinkObj(
 768                                 Title::makeTitle( NS_SPECIAL, 'Userlogin' ),
 769                                 wfMsg( 'login' ), $q );
 770                 } else {
 771                         $n = $wgUser->getName();
 772                         $rt = $wgTitle->getPrefixedURL();
 773                         $tl = $this->makeKnownLinkObj( $wgUser->getTalkPage(),
 774                           $wgLang->getNsText( NS_TALK ) );
 775
 776                         $tl = " ({$tl})";
 777
 778                         $s .= $this->makeKnownLinkObj( $wgUser->getUserPage(),
 779                           $n ) . "{$tl}<br />" .
 780                           $this->makeKnownLinkObj( Title::makeTitle( NS_SPECIAL, 'Userlogout' ), wfMsg( 'logout' ),
 781                           "returnto={$rt}" ) . ' | ' .
 782                           $this->specialLink( 'preferences' );
 783                 }
 784                 $s .= ' | ' . $this->makeKnownLink( wfMsgForContent( 'helppage' ),
 785                   wfMsg( 'help' ) );
 786
 787                 return $s;
 788         }
 789
 790         function getSearchLink() {
 791                 $searchPage =& Title::makeTitle( NS_SPECIAL, 'Search' );
 792                 return $searchPage->getLocalURL();
 793         }
 794
 795         function escapeSearchLink() {
 796                 return htmlspecialchars( $this->getSearchLink() );
 797         }
 798
 799         function searchForm() {
 800                 global $wgRequest;
 801                 $search = $wgRequest->getText( 'search' );
 802
 803                 $s = '<form name="search" class="inline" method="post" action="'
 804                   . $this->escapeSearchLink() . "\">\n"
 805                   . '<input type="text" name="search" size="19" value="'
 806                   . htmlspecialchars(substr($search,0,256)) . "\" />\n"
 807                   . '<input type="submit" name="go" value="' . wfMsg ('go') . '" />&nbsp;'
 808                   . '<input type="submit" name="fulltext" value="' . wfMsg ('search') . "\" />\n</form>";
 809
 810                 return $s;
 811         }
 812
 813         function topLinks() {
 814                 global $wgOut;
 815                 $sep = " |\n";
 816
 817                 $s = $this->mainPageLink() . $sep
 818                   . $this->specialLink( 'recentchanges' );
 819
 820                 if ( $wgOut->isArticleRelated() ) {
 821                         $s .=  $sep . $this->editThisPage()
 822                           . $sep . $this->historyLink();
 823                 }
 824                 # Many people don't like this dropdown box
 825                 #$s .= $sep . $this->specialPagesList();
 826
 827                 /* show links to different language variants */
 828                 global $wgDisableLangConversion, $wgContLang, $wgTitle;
 829                 $variants = $wgContLang->getVariants();
 830                 if( !$wgDisableLangConversion && sizeof( $variants ) > 1 ) {
 831                         foreach( $variants as $code ) {
 832                                 $varname = $wgContLang->getVariantname( $code );
 833                                 if( $varname == 'disable' )
 834                                         continue;
 835                                 $s .= ' | <a href="' . $wgTitle->getLocalUrl( 'variant=' . $code ) . '">' . $varname . '</a>';
 836                         }
 837                 }
 838
 839                 return $s;
 840         }
 841
 842         function bottomLinks() {
 843                 global $wgOut, $wgUser, $wgTitle, $wgUseTrackbacks;
 844                 $sep = " |\n";
 845
 846                 $s = '';
 847                 if ( $wgOut->isArticleRelated() ) {
 848                         $s .= '<strong>' . $this->editThisPage() . '</strong>';
 849                         if ( $wgUser->isLoggedIn() ) {
 850                                 $s .= $sep . $this->watchThisPage();
 851                         }
 852                         $s .= $sep . $this->talkLink()
 853                           . $sep . $this->historyLink()
 854                           . $sep . $this->whatLinksHere()
 855                           . $sep . $this->watchPageLinksLink();
 856
 857                         if ($wgUseTrackbacks)
 858                                 $s .= $sep . $this->trackbackLink();
 859
 860                         if ( $wgTitle->getNamespace() == NS_USER
 861                             || $wgTitle->getNamespace() == NS_USER_TALK )
 862
 863                         {
 864                                 $id=User::idFromName($wgTitle->getText());
 865                                 $ip=User::isIP($wgTitle->getText());
 866
 867                                 if($id || $ip) { # both anons and non-anons have contri list
 868                                         $s .= $sep . $this->userContribsLink();
 869                                 }
 870                                 if( $this->showEmailUser( $id ) ) {
 871                                         $s .= $sep . $this->emailUserLink();
 872                                 }
 873                         }
 874                         if ( $wgTitle->getArticleId() ) {
 875                                 $s .= "\n<br />";
 876                                 if($wgUser->isAllowed('delete')) { $s .= $this->deleteThisPage(); }
 877                                 if($wgUser->isAllowed('protect')) { $s .= $sep . $this->protectThisPage(); }
 878                                 if($wgUser->isAllowed('move')) { $s .= $sep . $this->moveThisPage(); }
 879                         }
 880                         $s .= "<br />\n" . $this->otherLanguages();
 881                 }
 882                 return $s;
 883         }
 884
 885         function pageStats() {
 886                 global $wgOut, $wgLang, $wgArticle, $wgRequest, $wgUser;
 887                 global $wgDisableCounters, $wgMaxCredits, $wgShowCreditsIfMax, $wgTitle, $wgPageShowWatchingUsers;
 888
 889                 extract( $wgRequest->getValues( 'oldid', 'diff' ) );
 890                 if ( ! $wgOut->isArticle() ) { return ''; }
 891                 if ( isset( $oldid ) || isset( $diff ) ) { return ''; }
 892                 if ( 0 == $wgArticle->getID() ) { return ''; }
 893
 894                 $s = '';
 895                 if ( !$wgDisableCounters ) {
 896                         $count = $wgLang->formatNum( $wgArticle->getCount() );
 897                         if ( $count ) {
 898                                 $s = wfMsgExt( 'viewcount', array( 'parseinline' ), $count );
 899                         }
 900                 }
 901
 902                 if (isset($wgMaxCredits) && $wgMaxCredits != 0) {
 903                     require_once('Credits.php');
 904                     $s .= ' ' . getCredits($wgArticle, $wgMaxCredits, $wgShowCreditsIfMax);
 905                 } else {
 906                     $s .= $this->lastModified();
 907                 }
 908
 909                 if ($wgPageShowWatchingUsers && $wgUser->getOption( 'shownumberswatching' )) {
 910                         $dbr =& wfGetDB( DB_SLAVE );
 911                         extract( $dbr->tableNames( 'watchlist' ) );
 912                         $sql = "SELECT COUNT(*) AS n FROM $watchlist
 913                                 WHERE wl_title='" . $dbr->strencode($wgTitle->getDBKey()) .
 914                                 "' AND  wl_namespace=" . $wgTitle->getNamespace() ;
 915                         $res = $dbr->query( $sql, 'Skin::pageStats');
 916                         $x = $dbr->fetchObject( $res );
 917                         $s .= ' ' . wfMsg('number_of_watching_users_pageview', $x->n );
 918                 }
 919
 920                 return $s . ' ' .  $this->getCopyright();
 921         }
 922
 923         function getCopyright( $type = 'detect' ) {
 924                 global $wgRightsPage, $wgRightsUrl, $wgRightsText, $wgRequest;
 925
 926                 if ( $type == 'detect' ) {
 927                         $oldid = $wgRequest->getVal( 'oldid' );
 928                         $diff = $wgRequest->getVal( 'diff' );
 929
 930                         if ( !is_null( $oldid ) && is_null( $diff ) && wfMsgForContent( 'history_copyright' ) !== '-' ) {
 931                                 $type = 'history';
 932                         } else {
 933                                 $type = 'normal';
 934                         }
 935                 }
 936
 937                 if ( $type == 'history' ) {
 938                         $msg = 'history_copyright';
 939                 } else {
 940                         $msg = 'copyright';
 941                 }
 942
 943                 $out = '';
 944                 if( $wgRightsPage ) {
 945                         $link = $this->makeKnownLink( $wgRightsPage, $wgRightsText );
 946                 } elseif( $wgRightsUrl ) {
 947                         $link = $this->makeExternalLink( $wgRightsUrl, $wgRightsText );
 948                 } else {
 949                         # Give up now
 950                         return $out;
 951                 }
 952                 $out .= wfMsgForContent( $msg, $link );
 953                 return $out;
 954         }
 955
 956         function getCopyrightIcon() {
 957                 global $wgRightsUrl, $wgRightsText, $wgRightsIcon, $wgCopyrightIcon;
 958                 $out = '';
 959                 if ( isset( $wgCopyrightIcon ) && $wgCopyrightIcon ) {
 960                         $out = $wgCopyrightIcon;
 961                 } else if ( $wgRightsIcon ) {
 962                         $icon = htmlspecialchars( $wgRightsIcon );
 963                         if ( $wgRightsUrl ) {
 964                                 $url = htmlspecialchars( $wgRightsUrl );
 965                                 $out .= '<a href="'.$url.'">';
 966                         }
 967                         $text = htmlspecialchars( $wgRightsText );
 968                         $out .= "<img src=\"$icon\" alt='$text' />";
 969                         if ( $wgRightsUrl ) {
 970                                 $out .= '</a>';
 971                         }
 972                 }
 973                 return $out;
 974         }
 975
 976         function getPoweredBy() {
 977                 global $wgStylePath;
 978                 $url = htmlspecialchars( "$wgStylePath/common/images/poweredby_mediawiki_88x31.png" );
 979                 $img = '<a href="http://www.mediawiki.org/"><img src="'.$url.'" alt="MediaWiki" /></a>';
 980                 return $img;
 981         }
 982
 983         function lastModified() {
 984                 global $wgLang, $wgArticle, $wgLoadBalancer;
 985
 986                 $timestamp = $wgArticle->getTimestamp();
 987                 if ( $timestamp ) {
 988                         $d = $wgLang->timeanddate( $timestamp, true );
 989                         $s = ' ' . wfMsg( 'lastmodified', $d );
 990                 } else {
 991                         $s = '';
 992                 }
 993                 if ( $wgLoadBalancer->getLaggedSlaveMode() ) {
 994                         $s .= ' <strong>' . wfMsg( 'laggedslavemode' ) . '</strong>';
 995                 }
 996                 return $s;
 997         }
 998
 999         function logoText( $align = '' ) {
1000                 if ( '' != $align ) { $a = " align='{$align}'"; }
1001                 else { $a = ''; }
1002
1003                 $mp = wfMsg( 'mainpage' );
1004                 $titleObj = Title::newFromText( $mp );
1005                 if ( is_object( $titleObj ) ) {
1006                         $url = $titleObj->escapeLocalURL();
1007                 } else {
1008                         $url = '';
1009                 }
1010
1011                 $logourl = $this->getLogo();
1012                 $s = "<a href='{$url}'><img{$a} src='{$logourl}' alt='[{$mp}]' /></a>";
1013                 return $s;
1014         }
1015
1016         /**
1017          * show a drop-down box of special pages
1018          * @TODO crash bug913. Need to be rewrote completly.
1019          */
1020         function specialPagesList() {
1021                 global $wgUser, $wgContLang, $wgServer, $wgRedirectScript, $wgAvailableRights;
1022                 require_once('SpecialPage.php');
1023                 $a = array();
1024                 $pages = SpecialPage::getPages();
1025
1026                 // special pages without access restriction
1027                 foreach ( $pages[''] as $name => $page ) {
1028                         $a[$name] = $page->getDescription();
1029                 }
1030
1031                 // Other special pages that are restricted.
1032                 // Copied from SpecialSpecialpages.php
1033                 foreach($wgAvailableRights as $right) {
1034                         if( $wgUser->isAllowed($right) ) {
1035                                 /** Add all pages for this right */
1036                                 if(isset($pages[$right])) {
1037                                         foreach($pages[$right] as $name => $page) {
1038                                         $a[$name] = $page->getDescription();
1039                                         }
1040                                 }
1041                         }
1042                 }
1043
1044                 $go = wfMsg( 'go' );
1045                 $sp = wfMsg( 'specialpages' );
1046                 $spp = $wgContLang->specialPage( 'Specialpages' );
1047
1048                 $s = '<form id="specialpages" method="get" class="inline" ' .
1049                   'action="' . htmlspecialchars( "{$wgServer}{$wgRedirectScript}" ) . "\">\n";
1050                 $s .= "<select name=\"wpDropdown\">\n";
1051                 $s .= "<option value=\"{$spp}\">{$sp}</option>\n";
1052
1053
1054                 foreach ( $a as $name => $desc ) {
1055                         $p = $wgContLang->specialPage( $name );
1056                         $s .= "<option value=\"{$p}\">{$desc}</option>\n";
1057                 }
1058                 $s .= "</select>\n";
1059                 $s .= "<input type='submit' value=\"{$go}\" name='redirect' />\n";
1060                 $s .= "</form>\n";
1061                 return $s;
1062         }
1063
1064         function mainPageLink() {
1065                 $mp = wfMsgForContent( 'mainpage' );
1066                 $mptxt = wfMsg( 'mainpage');
1067                 $s = $this->makeKnownLink( $mp, $mptxt );
1068                 return $s;
1069         }
1070
1071         function copyrightLink() {
1072                 $s = $this->makeKnownLink( wfMsgForContent( 'copyrightpage' ),
1073                   wfMsg( 'copyrightpagename' ) );
1074                 return $s;
1075         }
1076
1077         function privacyLink() {
1078                 $privacy = wfMsg( 'privacy' );
1079                 if ($privacy == '-') {
1080                         return '';
1081                 } else {
1082                         return $this->makeKnownLink( wfMsgForContent( 'privacypage' ), $privacy);
1083                 }
1084         }
1085
1086         function aboutLink() {
1087                 $s = $this->makeKnownLink( wfMsgForContent( 'aboutpage' ),
1088                   wfMsg( 'aboutsite' ) );
1089                 return $s;
1090         }
1091
1092         function disclaimerLink() {
1093                 $disclaimers = wfMsg( 'disclaimers' );
1094                 if ($disclaimers == '-') {
1095                         return '';
1096                 } else {
1097                         return $this->makeKnownLink( wfMsgForContent( 'disclaimerpage' ),
1098                                                      $disclaimers );
1099                 }
1100         }
1101
1102         function editThisPage() {
1103                 global $wgOut, $wgTitle;
1104
1105                 if ( ! $wgOut->isArticleRelated() ) {
1106                         $s = wfMsg( 'protectedpage' );
1107                 } else {
1108                         if ( $wgTitle->userCanEdit() ) {
1109                                 $t = wfMsg( 'editthispage' );
1110                         } else {
1111                                 $t = wfMsg( 'viewsource' );
1112                         }
1113
1114                         $s = $this->makeKnownLinkObj( $wgTitle, $t, $this->editUrlOptions() );
1115                 }
1116                 return $s;
1117         }
1118
1119         /**
1120          * Return URL options for the 'edit page' link.
1121          * This may include an 'oldid' specifier, if the current page view is such.
1122          *
1123          * @return string
1124          * @private
1125          */
1126         function editUrlOptions() {
1127                 global $wgArticle;
1128
1129                 if( $this->mRevisionId && ! $wgArticle->isCurrent() ) {
1130                         return "action=edit&oldid=" . intval( $this->mRevisionId );
1131                 } else {
1132                         return "action=edit";
1133                 }
1134         }
1135
1136         function deleteThisPage() {
1137                 global $wgUser, $wgTitle, $wgRequest;
1138
1139                 $diff = $wgRequest->getVal( 'diff' );
1140                 if ( $wgTitle->getArticleId() && ( ! $diff ) && $wgUser->isAllowed('delete') ) {
1141                         $t = wfMsg( 'deletethispage' );
1142
1143                         $s = $this->makeKnownLinkObj( $wgTitle, $t, 'action=delete' );
1144                 } else {
1145                         $s = '';
1146                 }
1147                 return $s;
1148         }
1149
1150         function protectThisPage() {
1151                 global $wgUser, $wgTitle, $wgRequest;
1152
1153                 $diff = $wgRequest->getVal( 'diff' );
1154                 if ( $wgTitle->getArticleId() && ( ! $diff ) && $wgUser->isAllowed('protect') ) {
1155                         if ( $wgTitle->isProtected() ) {
1156                                 $t = wfMsg( 'unprotectthispage' );
1157                                 $q = 'action=unprotect';
1158                         } else {
1159                                 $t = wfMsg( 'protectthispage' );
1160                                 $q = 'action=protect';
1161                         }
1162                         $s = $this->makeKnownLinkObj( $wgTitle, $t, $q );
1163                 } else {
1164                         $s = '';
1165                 }
1166                 return $s;
1167         }
1168
1169         function watchThisPage() {
1170                 global $wgOut, $wgTitle;
1171
1172                 if ( $wgOut->isArticleRelated() ) {
1173                         if ( $wgTitle->userIsWatching() ) {
1174                                 $t = wfMsg( 'unwatchthispage' );
1175                                 $q = 'action=unwatch';
1176                         } else {
1177                                 $t = wfMsg( 'watchthispage' );
1178                                 $q = 'action=watch';
1179                         }
1180                         $s = $this->makeKnownLinkObj( $wgTitle, $t, $q );
1181                 } else {
1182                         $s = wfMsg( 'notanarticle' );
1183                 }
1184                 return $s;
1185         }
1186
1187         function moveThisPage() {
1188                 global $wgTitle;
1189
1190                 if ( $wgTitle->userCanMove() ) {
1191                         return $this->makeKnownLinkObj( Title::makeTitle( NS_SPECIAL, 'Movepage' ),
1192                           wfMsg( 'movethispage' ), 'target=' . $wgTitle->getPrefixedURL() );
1193                 } else {
1194                         // no message if page is protected - would be redundant
1195                         return '';
1196                 }
1197         }
1198
1199         function historyLink() {
1200                 global $wgTitle;
1201
1202                 return $this->makeKnownLinkObj( $wgTitle,
1203                   wfMsg( 'history' ), 'action=history' );
1204         }
1205
1206         function whatLinksHere() {
1207                 global $wgTitle;
1208
1209                 return $this->makeKnownLinkObj( Title::makeTitle( NS_SPECIAL, 'Whatlinkshere' ),
1210                   wfMsg( 'whatlinkshere' ), 'target=' . $wgTitle->getPrefixedURL() );
1211         }
1212
1213         function userContribsLink() {
1214                 global $wgTitle;
1215
1216                 return $this->makeKnownLinkObj( Title::makeTitle( NS_SPECIAL, 'Contributions' ),
1217                   wfMsg( 'contributions' ), 'target=' . $wgTitle->getPartialURL() );
1218         }
1219
1220         function showEmailUser( $id ) {
1221                 global $wgEnableEmail, $wgEnableUserEmail, $wgUser;
1222                 return $wgEnableEmail &&
1223                        $wgEnableUserEmail &&
1224                        $wgUser->isLoggedIn() && # show only to signed in users
1225                        0 != $id; # we can only email to non-anons ..
1226 #                      '' != $id->getEmail() && # who must have an email address stored ..
1227 #                      0 != $id->getEmailauthenticationtimestamp() && # .. which is authenticated
1228 #                      1 != $wgUser->getOption('disablemail'); # and not disabled
1229         }
1230
1231         function emailUserLink() {
1232                 global $wgTitle;
1233
1234                 return $this->makeKnownLinkObj( Title::makeTitle( NS_SPECIAL, 'Emailuser' ),
1235                   wfMsg( 'emailuser' ), 'target=' . $wgTitle->getPartialURL() );
1236         }
1237
1238         function watchPageLinksLink() {
1239                 global $wgOut, $wgTitle;
1240
1241                 if ( ! $wgOut->isArticleRelated() ) {
1242                         return '(' . wfMsg( 'notanarticle' ) . ')';
1243                 } else {
1244                         return $this->makeKnownLinkObj( Title::makeTitle( NS_SPECIAL,
1245                           'Recentchangeslinked' ), wfMsg( 'recentchangeslinked' ),
1246                           'target=' . $wgTitle->getPrefixedURL() );
1247                 }
1248         }
1249
1250         function trackbackLink() {
1251                 global $wgTitle;
1252
1253                 return "<a href=\"" . $wgTitle->trackbackURL() . "\">"
1254                         . wfMsg('trackbacklink') . "</a>";
1255         }
1256
1257         function otherLanguages() {
1258                 global $wgOut, $wgContLang, $wgHideInterlanguageLinks;
1259
1260                 if ( $wgHideInterlanguageLinks ) {
1261                         return '';
1262                 }
1263
1264                 $a = $wgOut->getLanguageLinks();
1265                 if ( 0 == count( $a ) ) {
1266                         return '';
1267                 }
1268
1269                 $s = wfMsg( 'otherlanguages' ) . ': ';
1270                 $first = true;
1271                 if($wgContLang->isRTL()) $s .= '<span dir="LTR">';
1272                 foreach( $a as $l ) {
1273                         if ( ! $first ) { $s .= ' | '; }
1274                         $first = false;
1275
1276                         $nt = Title::newFromText( $l );
1277                         $url = $nt->escapeFullURL();
1278                         $text = $wgContLang->getLanguageName( $nt->getInterwiki() );
1279
1280                         if ( '' == $text ) { $text = $l; }
1281                         $style = $this->getExternalLinkAttributes( $l, $text );
1282                         $s .= "<a href=\"{$url}\"{$style}>{$text}</a>";
1283                 }
1284                 if($wgContLang->isRTL()) $s .= '</span>';
1285                 return $s;
1286         }
1287
1288         function bugReportsLink() {
1289                 $s = $this->makeKnownLink( wfMsgForContent( 'bugreportspage' ),
1290                   wfMsg( 'bugreports' ) );
1291                 return $s;
1292         }
1293
1294         function dateLink() {
1295                 $t1 = Title::newFromText( gmdate( 'F j' ) );
1296                 $t2 = Title::newFromText( gmdate( 'Y' ) );
1297
1298                 $id = $t1->getArticleID();
1299
1300                 if ( 0 == $id ) {
1301                         $s = $this->makeBrokenLink( $t1->getText() );
1302                 } else {
1303                         $s = $this->makeKnownLink( $t1->getText() );
1304                 }
1305                 $s .= ', ';
1306
1307                 $id = $t2->getArticleID();
1308
1309                 if ( 0 == $id ) {
1310                         $s .= $this->makeBrokenLink( $t2->getText() );
1311                 } else {
1312                         $s .= $this->makeKnownLink( $t2->getText() );
1313                 }
1314                 return $s;
1315         }
1316
1317         function talkLink() {
1318                 global $wgTitle;
1319
1320                 if ( NS_SPECIAL == $wgTitle->getNamespace() ) {
1321                         # No discussion links for special pages
1322                         return '';
1323                 }
1324
1325                 if( $wgTitle->isTalkPage() ) {
1326                         $link = $wgTitle->getSubjectPage();
1327                         switch( $link->getNamespace() ) {
1328                         case NS_MAIN:
1329                                 $text = wfMsg('articlepage');
1330                                 break;
1331                         case NS_USER:
1332                                 $text = wfMsg('userpage');
1333                                 break;
1334                         case NS_PROJECT:
1335                                 $text = wfMsg('wikipediapage');
1336                                 break;
1337                         case NS_IMAGE:
1338                                 $text = wfMsg('imagepage');
1339                                 break;
1340                         default:
1341                                 $text= wfMsg('articlepage');
1342                         }
1343                 } else {
1344                         $link = $wgTitle->getTalkPage();
1345                         $text = wfMsg( 'talkpage' );
1346                 }
1347
1348                 $s = $this->makeLinkObj( $link, $text );
1349
1350                 return $s;
1351         }
1352
1353         function commentLink() {
1354                 global $wgTitle, $wgOut;
1355
1356                 if ( $wgTitle->getNamespace() == NS_SPECIAL ) {
1357                         return '';
1358                 }
1359
1360                 # __NEWSECTIONLINK___ changes behaviour here
1361                 # If it's present, the link points to this page, otherwise
1362                 # it points to the talk page
1363                 if( $wgTitle->isTalkPage() ) {
1364                         $title =& $wgTitle;
1365                 } elseif( $wgOut->showNewSectionLink() ) {
1366                         $title =& $wgTitle;
1367                 } else {
1368                         $title =& $wgTitle->getTalkPage();
1369                 }
1370
1371                 return $this->makeKnownLinkObj( $title, wfMsg( 'postcomment' ), 'action=edit&section=new' );
1372         }
1373
1374         /* these are used extensively in SkinTemplate, but also some other places */
1375         /*static*/ function makeSpecialUrl( $name, $urlaction='' ) {
1376                 $title = Title::makeTitle( NS_SPECIAL, $name );
1377                 return $title->getLocalURL( $urlaction );
1378         }
1379
1380         /*static*/ function makeI18nUrl ( $name, $urlaction='' ) {
1381                 $title = Title::newFromText( wfMsgForContent($name) );
1382                 $this->checkTitle($title, $name);
1383                 return $title->getLocalURL( $urlaction );
1384         }
1385
1386         /*static*/ function makeUrl ( $name, $urlaction='' ) {
1387                 $title = Title::newFromText( $name );
1388                 $this->checkTitle($title, $name);
1389                 return $title->getLocalURL( $urlaction );
1390         }
1391
1392         # If url string starts with http, consider as external URL, else
1393         # internal
1394         /*static*/ function makeInternalOrExternalUrl( $name ) {
1395                 if ( preg_match( '/^(?:' . wfUrlProtocols() . ')/', $name ) ) {
1396                         return $name;
1397                 } else {
1398                         return $this->makeUrl( $name );
1399                 }
1400         }
1401
1402         # this can be passed the NS number as defined in Language.php
1403         /*static*/ function makeNSUrl( $name, $urlaction='', $namespace=NS_MAIN ) {
1404                 $title = Title::makeTitleSafe( $namespace, $name );
1405                 $this->checkTitle($title, $name);
1406                 return $title->getLocalURL( $urlaction );
1407         }
1408
1409         /* these return an array with the 'href' and boolean 'exists' */
1410         /*static*/ function makeUrlDetails ( $name, $urlaction='' ) {
1411                 $title = Title::newFromText( $name );
1412                 $this->checkTitle($title, $name);
1413                 return array(
1414                         'href' => $title->getLocalURL( $urlaction ),
1415                         'exists' => $title->getArticleID() != 0?true:false
1416                 );
1417         }
1418
1419         /**
1420          * Make URL details where the article exists (or at least it's convenient to think so)
1421          */
1422         function makeKnownUrlDetails( $name, $urlaction='' ) {
1423                 $title = Title::newFromText( $name );
1424                 $this->checkTitle($title, $name);
1425                 return array(
1426                         'href' => $title->getLocalURL( $urlaction ),
1427                         'exists' => true
1428                 );
1429         }
1430
1431         # make sure we have some title to operate on
1432         /*static*/ function checkTitle ( &$title, &$name ) {
1433                 if(!is_object($title)) {
1434                         $title = Title::newFromText( $name );
1435                         if(!is_object($title)) {
1436                                 $title = Title::newFromText( '--error: link target missing--' );
1437                         }
1438                 }
1439         }
1440
1441         /**
1442          * Build an array that represents the sidebar(s), the navigation bar among them
1443          *
1444          * @return array
1445          * @private
1446          */
1447         function buildSidebar() {
1448                 global $wgDBname, $parserMemc, $wgEnableSidebarCache;
1449                 global $wgLanguageCode, $wgContLanguageCode;
1450
1451                 $fname = 'SkinTemplate::buildSidebar';
1452
1453                 wfProfileIn( $fname );
1454
1455                 $key = "{$wgDBname}:sidebar";
1456                 $cacheSidebar = $wgEnableSidebarCache &&
1457                         ($wgLanguageCode == $wgContLanguageCode);
1458
1459                 if ($cacheSidebar) {
1460                         $cachedsidebar = $parserMemc->get( $key );
1461                         if ($cachedsidebar!="") {
1462                                 wfProfileOut($fname);
1463                                 return $cachedsidebar;
1464                         }
1465                 }
1466
1467                 $bar = array();
1468                 $lines = explode( "\n", wfMsgForContent( 'sidebar' ) );
1469                 foreach ($lines as $line) {
1470                         if (strpos($line, '*') !== 0)
1471                                 continue;
1472                         if (strpos($line, '**') !== 0) {
1473                                 $line = trim($line, '* ');
1474                                 $heading = $line;
1475                         } else {
1476                                 if (strpos($line, '|') !== false) { // sanity check
1477                                         $line = explode( '|' , trim($line, '* '), 2 );
1478                                         $link = wfMsgForContent( $line[0] );
1479                                         if ($link == '-')
1480                                                 continue;
1481                                         if (wfEmptyMsg($line[1], $text = wfMsg($line[1])))
1482                                                 $text = $line[1];
1483                                         if (wfEmptyMsg($line[0], $link))
1484                                                 $link = $line[0];
1485                                         $href = $this->makeInternalOrExternalUrl( $link );
1486                                         $bar[$heading][] = array(
1487                                                 'text' => $text,
1488                                                 'href' => $href,
1489                                                 'id' => 'n-' . strtr($line[1], ' ', '-'),
1490                                                 'active' => false
1491                                         );
1492                                 } else { continue; }
1493                         }
1494                 }
1495                 if ($cacheSidebar)
1496                         $cachednotice = $parserMemc->set( $key, $bar, 86400 );
1497                 wfProfileOut( $fname );
1498                 return $bar;
1499         }
1500 }
1501 ?>