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