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 = $skinDir->read())) {
  24         if(preg_match('/^([^.].*)\.php$/',$file, $matches)) {
  25                 $aSkin = $matches[1];
  26                 $wgValidSkinNames[strtolower($aSkin)] = $aSkin;
  27         }
  28 }
  29 $skinDir->close();
  30 unset($matches);
  31
  32 /**
  33  * The main skin class that provide methods and properties for all other skins
  34  * including PHPTal skins.
  35  * This base class is also the "Standard" skin.
  36  * @package MediaWiki
  37  */
  38 class Skin extends Linker {
  39         /**#@+
  40          * @access private
  41          */
  42         var $lastdate, $lastline;
  43         var $rc_cache ; # Cache for Enhanced Recent Changes
  44         var $rcCacheIndex ; # Recent Changes Cache Counter for visibility toggle
  45         var $rcMoveIndex;
  46         /**#@-*/
  47
  48         /** Constructor, call parent constructor */
  49         function Skin() { parent::Linker(); }
  50
  51         /**
  52          * Fetch the set of available skins.
  53          * @return array of strings
  54          * @static
  55          */
  56         function getSkinNames() {
  57                 global $wgValidSkinNames;
  58                 return $wgValidSkinNames;
  59         }
  60
  61         /**
  62          * Normalize a skin preference value to a form that can be loaded.
  63          * If a skin can't be found, it will fall back to the configured
  64          * default (or the old 'Classic' skin if that's broken).
  65          * @param string $key
  66          * @return string
  67          * @static
  68          */
  69         function normalizeKey( $key ) {
  70                 global $wgDefaultSkin;
  71                 $skinNames = Skin::getSkinNames();
  72
  73                 if( $key == '' ) {
  74                         // Don't return the default immediately;
  75                         // in a misconfiguration we need to fall back.
  76                         $key = $wgDefaultSkin;
  77                 }
  78
  79                 if( isset( $skinNames[$key] ) ) {
  80                         return $key;
  81                 }
  82
  83                 // Older versions of the software used a numeric setting
  84                 // in the user preferences.
  85                 $fallback = array(
  86                         0 => $wgDefaultSkin,
  87                         1 => 'nostalgia',
  88                         2 => 'cologneblue' );
  89
  90                 if( isset( $fallback[$key] ) ){
  91                         $key = $fallback[$key];
  92                 }
  93
  94                 if( isset( $skinNames[$key] ) ) {
  95                         return $key;
  96                 } else {
  97                         // The old built-in skin
  98                         return 'standard';
  99                 }
 100         }
 101
 102         /**
 103          * Factory method for loading a skin of a given type
 104          * @param string $key 'monobook', 'standard', etc
 105          * @return Skin
 106          * @static
 107          */
 108         function &newFromKey( $key ) {
 109                 $key = Skin::normalizeKey( $key );
 110
 111                 $skinNames = Skin::getSkinNames();
 112                 $skinName = $skinNames[$key];
 113
 114                 global $IP;
 115
 116                 # Grab the skin class and initialise it. Each skin checks for PHPTal
 117                 # and will not load if it's not enabled.
 118                 require_once( $IP.'/skins/'.$skinName.'.php' );
 119
 120                 # Check if we got if not failback to default skin
 121                 $className = 'Skin'.$skinName;
 122                 if( !class_exists( $className ) ) {
 123                         # DO NOT die if the class isn't found. This breaks maintenance
 124                         # scripts and can cause a user account to be unrecoverable
 125                         # except by SQL manipulation if a previously valid skin name
 126                         # is no longer valid.
 127                         $className = 'SkinStandard';
 128                         require_once( $IP.'/skins/Standard.php' );
 129                 }
 130                 $skin =& new $className;
 131                 return $skin;
 132         }
 133
 134         /** @return string path to the skin stylesheet */
 135         function getStylesheet() {
 136                 return 'common/wikistandard.css?1';
 137         }
 138
 139         /** @return string skin name */
 140         function getSkinName() {
 141                 return 'standard';
 142         }
 143
 144         function qbSetting() {
 145                 global $wgOut, $wgUser;
 146
 147                 if ( $wgOut->isQuickbarSuppressed() ) { return 0; }
 148                 $q = $wgUser->getOption( 'quickbar' );
 149                 if ( '' == $q ) { $q = 0; }
 150                 return $q;
 151         }
 152
 153         function initPage( &$out ) {
 154                 $fname = 'Skin::initPage';
 155                 wfProfileIn( $fname );
 156
 157                 $out->addLink( array( 'rel' => 'shortcut icon', 'href' => '/favicon.ico' ) );
 158
 159                 $this->addMetadataLinks($out);
 160
 161                 $this->mRevisionId = $out->mRevisionId;
 162
 163                 wfProfileOut( $fname );
 164         }
 165
 166         function addMetadataLinks( &$out ) {
 167                 global $wgTitle, $wgEnableDublinCoreRdf, $wgEnableCreativeCommonsRdf;
 168                 global $wgRightsPage, $wgRightsUrl;
 169
 170                 if( $out->isArticleRelated() ) {
 171                         # note: buggy CC software only reads first "meta" link
 172                         if( $wgEnableCreativeCommonsRdf ) {
 173                                 $out->addMetadataLink( array(
 174                                         'title' => 'Creative Commons',
 175                                         'type' => 'application/rdf+xml',
 176                                         'href' => $wgTitle->getLocalURL( 'action=creativecommons') ) );
 177                         }
 178                         if( $wgEnableDublinCoreRdf ) {
 179                                 $out->addMetadataLink( array(
 180                                         'title' => 'Dublin Core',
 181                                         'type' => 'application/rdf+xml',
 182                                         'href' => $wgTitle->getLocalURL( 'action=dublincore' ) ) );
 183                         }
 184                 }
 185                 $copyright = '';
 186                 if( $wgRightsPage ) {
 187                         $copy = Title::newFromText( $wgRightsPage );
 188                         if( $copy ) {
 189                                 $copyright = $copy->getLocalURL();
 190                         }
 191                 }
 192                 if( !$copyright && $wgRightsUrl ) {
 193                         $copyright = $wgRightsUrl;
 194                 }
 195                 if( $copyright ) {
 196                         $out->addLink( array(
 197                                 'rel' => 'copyright',
 198                                 'href' => $copyright ) );
 199                 }
 200         }
 201
 202         function outputPage( &$out ) {
 203                 global $wgDebugComments;
 204
 205                 wfProfileIn( 'Skin::outputPage' );
 206                 $this->initPage( $out );
 207
 208                 $out->out( $out->headElement() );
 209
 210                 $out->out( "\n<body" );
 211                 $ops = $this->getBodyOptions();
 212                 foreach ( $ops as $name => $val ) {
 213                         $out->out( " $name='$val'" );
 214                 }
 215                 $out->out( ">\n" );
 216                 if ( $wgDebugComments ) {
 217                         $out->out( "<!-- Wiki debugging output:\n" .
 218                           $out->mDebugtext . "-->\n" );
 219                 }
 220
 221                 $out->out( $this->beforeContent() );
 222
 223                 $out->out( $out->mBodytext . "\n" );
 224
 225                 $out->out( $this->afterContent() );
 226
 227                 $out->out( $out->reportTime() );
 228
 229                 $out->out( "\n</body></html>" );
 230         }
 231
 232         function getHeadScripts() {
 233                 global $wgStylePath, $wgUser, $wgAllowUserJs, $wgJsMimeType;
 234                 $r = "<script type=\"{$wgJsMimeType}\" src=\"{$wgStylePath}/common/wikibits.js\"></script>\n";
 235                 if( $wgAllowUserJs && $wgUser->isLoggedIn() ) {
 236                         $userpage = $wgUser->getUserPage();
 237                         $userjs = htmlspecialchars( $this->makeUrl(
 238                                 $userpage->getPrefixedText().'/'.$this->getSkinName().'.js',
 239                                 'action=raw&ctype='.$wgJsMimeType));
 240                         $r .= '<script type="'.$wgJsMimeType.'" src="'.$userjs."\"></script>\n";
 241                 }
 242                 return $r;
 243         }
 244
 245         /**
 246          * To make it harder for someone to slip a user a fake
 247          * user-JavaScript or user-CSS preview, a random token
 248          * is associated with the login session. If it's not
 249          * passed back with the preview request, we won't render
 250          * the code.
 251          *
 252          * @param string $action
 253          * @return bool
 254          * @access private
 255          */
 256         function userCanPreview( $action ) {
 257                 global $wgTitle, $wgRequest, $wgUser;
 258
 259                 if( $action != 'submit' )
 260                         return false;
 261                 if( !$wgRequest->wasPosted() )
 262                         return false;
 263                 if( !$wgTitle->userCanEditCssJsSubpage() )
 264                         return false;
 265                 return $wgUser->matchEditToken(
 266                         $wgRequest->getVal( 'wpEditToken' ) );
 267         }
 268
 269         # get the user/site-specific stylesheet, SkinPHPTal called from RawPage.php (settings are cached that way)
 270         function getUserStylesheet() {
 271                 global $wgOut, $wgStylePath, $wgRequest, $wgContLang, $wgSquidMaxage;
 272                 $sheet = $this->getStylesheet();
 273                 $action = $wgRequest->getText('action');
 274                 $s = "@import \"$wgStylePath/$sheet\";\n";
 275                 if($wgContLang->isRTL()) $s .= "@import \"$wgStylePath/common/common_rtl.css\";\n";
 276
 277                 $query = "action=raw&ctype=text/css&smaxage=$wgSquidMaxage";
 278                 $s .= '@import "' . $this->makeNSUrl( 'Common.css', $query, NS_MEDIAWIKI ) . "\";\n" .
 279                         '@import "'.$this->makeNSUrl( ucfirst( $this->getSkinName() . '.css' ), $query, NS_MEDIAWIKI ) . "\";\n";
 280
 281                 $s .= $this->doGetUserStyles();
 282                 return $s."\n";
 283         }
 284
 285         /**
 286          * placeholder, returns generated js in monobook
 287          */
 288         function getUserJs() { return; }
 289
 290         /**
 291          * Return html code that include User stylesheets
 292          */
 293         function getUserStyles() {
 294                 global $wgOut, $wgStylePath;
 295                 $s = "<style type='text/css'>\n";
 296                 $s .= "/*/*/ /*<![CDATA[*/\n"; # <-- Hide the styles from Netscape 4 without hiding them from IE/Mac
 297                 $s .= $this->getUserStylesheet();
 298                 $s .= "/*]]>*/ /* */\n";
 299                 $s .= "</style>\n";
 300                 return $s;
 301         }
 302
 303         /**
 304          * Some styles that are set by user through the user settings interface.
 305          */
 306         function doGetUserStyles() {
 307                 global $wgUser, $wgContLang, $wgUser, $wgRequest, $wgTitle, $wgAllowUserCss;
 308
 309                 $s = '';
 310
 311                 if( $wgAllowUserCss && $wgUser->isLoggedIn() ) { # logged in
 312                         if($wgTitle->isCssSubpage() && $this->userCanPreview( $action ) ) {
 313                                 $s .= $wgRequest->getText('wpTextbox1');
 314                         } else {
 315                                 $userpage = $wgUser->getUserPage();
 316                                 $s.= '@import "'.$this->makeUrl(
 317                                         $userpage->getPrefixedText().'/'.$this->getSkinName().'.css',
 318                                         'action=raw&ctype=text/css').'";'."\n";
 319                         }
 320                 }
 321
 322                 return $s . $this->reallyDoGetUserStyles();
 323         }
 324
 325         function reallyDoGetUserStyles() {
 326                 global $wgUser;
 327                 $s = '';
 328                 if (($undopt = $wgUser->getOption("underline")) != 2) {
 329                         $underline = $undopt ? 'underline' : 'none';
 330                         $s .= "a { text-decoration: $underline; }\n";
 331                 }
 332                 if( $wgUser->getOption( 'highlightbroken' ) ) {
 333                         $s .= "a.new, #quickbar a.new { color: #CC2200; }\n";
 334                 } else {
 335                         $s .= <<<END
 336 a.new, #quickbar a.new,
 337 a.stub, #quickbar a.stub {
 338         color: inherit;
 339         text-decoration: inherit;
 340 }
 341 a.new:after, #quickbar a.new:after {
 342         content: "?";
 343         color: #CC2200;
 344         text-decoration: $underline;
 345 }
 346 a.stub:after, #quickbar a.stub:after {
 347         content: "!";
 348         color: #772233;
 349         text-decoration: $underline;
 350 }
 351 END;
 352                 }
 353                 if( $wgUser->getOption( 'justify' ) ) {
 354                         $s .= "#article, #bodyContent { text-align: justify; }\n";
 355                 }
 356                 if( !$wgUser->getOption( 'showtoc' ) ) {
 357                         $s .= "#toc { display: none; }\n";
 358                 }
 359                 if( !$wgUser->getOption( 'editsection' ) ) {
 360                         $s .= ".editsection { display: none; }\n";
 361                 }
 362                 return $s;
 363         }
 364
 365         function getBodyOptions() {
 366                 global $wgUser, $wgTitle, $wgOut, $wgRequest;
 367
 368                 extract( $wgRequest->getValues( 'oldid', 'redirect', 'diff' ) );
 369
 370                 if ( 0 != $wgTitle->getNamespace() ) {
 371                         $a = array( 'bgcolor' => '#ffffec' );
 372                 }
 373                 else $a = array( 'bgcolor' => '#FFFFFF' );
 374                 if($wgOut->isArticle() && $wgUser->getOption('editondblclick') &&
 375                   $wgTitle->userCanEdit() ) {
 376                         $t = wfMsg( 'editthispage' );
 377                         $s = $wgTitle->getFullURL( $this->editUrlOptions() );
 378                         $s = 'document.location = "' .wfEscapeJSString( $s ) .'";';
 379                         $a += array ('ondblclick' => $s);
 380
 381                 }
 382                 $a['onload'] = $wgOut->getOnloadHandler();
 383                 if( $wgUser->getOption( 'editsectiononrightclick' ) ) {
 384                         if( $a['onload'] != '' ) {
 385                                 $a['onload'] .= ';';
 386                         }
 387                         $a['onload'] .= 'setupRightClickEdit()';
 388                 }
 389                 return $a;
 390         }
 391
 392         /**
 393          * URL to the logo
 394          */
 395         function getLogo() {
 396                 global $wgLogo;
 397                 return $wgLogo;
 398         }
 399
 400         /**
 401          * This will be called immediately after the <body> tag.  Split into
 402          * two functions to make it easier to subclass.
 403          */
 404         function beforeContent() {
 405                 return $this->doBeforeContent();
 406         }
 407
 408         function doBeforeContent() {
 409                 global $wgOut, $wgTitle, $wgContLang;
 410                 $fname = 'Skin::doBeforeContent';
 411                 wfProfileIn( $fname );
 412
 413                 $s = '';
 414                 $qb = $this->qbSetting();
 415
 416                 if( $langlinks = $this->otherLanguages() ) {
 417                         $rows = 2;
 418                         $borderhack = '';
 419                 } else {
 420                         $rows = 1;
 421                         $langlinks = false;
 422                         $borderhack = 'class="top"';
 423                 }
 424
 425                 $s .= "\n<div id='content'>\n<div id='topbar'>\n" .
 426                   "<table border='0' cellspacing='0' width='98%'>\n<tr>\n";
 427
 428                 $shove = ($qb != 0);
 429                 $left = ($qb == 1 || $qb == 3);
 430                 if($wgContLang->isRTL()) $left = !$left;
 431
 432                 if ( !$shove ) {
 433                         $s .= "<td class='top' align='left' valign='top' rowspan='{$rows}'>\n" .
 434                           $this->logoText() . '</td>';
 435                 } elseif( $left ) {
 436                         $s .= $this->getQuickbarCompensator( $rows );
 437                 }
 438                 $l = $wgContLang->isRTL() ? 'right' : 'left';
 439                 $s .= "<td {$borderhack} align='$l' valign='top'>\n";
 440
 441                 $s .= $this->topLinks() ;
 442                 $s .= "<p class='subtitle'>" . $this->pageTitleLinks() . "</p>\n";
 443
 444                 $r = $wgContLang->isRTL() ? "left" : "right";
 445                 $s .= "</td>\n<td {$borderhack} valign='top' align='$r' nowrap='nowrap'>";
 446                 $s .= $this->nameAndLogin();
 447                 $s .= "\n<br />" . $this->searchForm() . "</td>";
 448
 449                 if ( $langlinks ) {
 450                         $s .= "</tr>\n<tr>\n<td class='top' colspan=\"2\">$langlinks</td>\n";
 451                 }
 452
 453                 if ( $shove && !$left ) { # Right
 454                         $s .= $this->getQuickbarCompensator( $rows );
 455                 }
 456                 $s .= "</tr>\n</table>\n</div>\n";
 457                 $s .= "\n<div id='article'>\n";
 458
 459                 $notice = wfGetSiteNotice();
 460                 if( $notice ) {
 461                         $s .= "\n<div id='siteNotice'>$notice</div>\n";
 462                 }
 463                 $s .= $this->pageTitle();
 464                 $s .= $this->pageSubtitle() ;
 465                 $s .= $this->getCategories();
 466                 wfProfileOut( $fname );
 467                 return $s;
 468         }
 469
 470
 471         function getCategoryLinks () {
 472                 global $wgOut, $wgTitle, $wgUseCategoryBrowser;
 473                 global $wgContLang;
 474
 475                 if( count( $wgOut->mCategoryLinks ) == 0 ) return '';
 476
 477                 // Use Unicode bidi embedding override characters,
 478                 // to make sure links don't smash each other up in ugly ways.
 479                 $dir = $wgContLang->isRTL() ? 'rtl' : 'ltr';
 480                 $embed = "<span dir='$dir'>";
 481                 $pop = '</span>';
 482                 $t = $embed . implode ( "$pop | $embed" , $wgOut->mCategoryLinks ) . $pop;
 483
 484                 $msg = count( $wgOut->mCategoryLinks ) === 1 ? 'categories1' : 'categories';
 485                 $s = $this->makeKnownLinkObj( Title::makeTitle( NS_SPECIAL, 'Categories' ),
 486                         wfMsg( $msg ), 'article=' . urlencode( $wgTitle->getPrefixedDBkey() ) )
 487                         . ': ' . $t;
 488
 489                 # optional 'dmoz-like' category browser. Will be shown under the list
 490                 # of categories an article belong to
 491                 if($wgUseCategoryBrowser) {
 492                         $s .= '<br /><hr />';
 493
 494                         # get a big array of the parents tree
 495                         $parenttree = $wgTitle->getParentCategoryTree();
 496                         # Skin object passed by reference cause it can not be
 497                         # accessed under the method subfunction drawCategoryBrowser
 498                         $tempout = explode("\n", Skin::drawCategoryBrowser($parenttree, $this) );
 499                         # Clean out bogus first entry and sort them
 500                         unset($tempout[0]);
 501                         asort($tempout);
 502                         # Output one per line
 503                         $s .= implode("<br />\n", $tempout);
 504                 }
 505
 506                 return $s;
 507         }
 508
 509         /** Render the array as a serie of links.
 510          * @param array $tree Categories tree returned by Title::getParentCategoryTree
 511          * @param object &skin Skin passed by reference
 512          * @return string separated by &gt;, terminate with "\n"
 513          */
 514         function drawCategoryBrowser($tree, &$skin) {
 515                 $return = '';
 516                 foreach ($tree as $element => $parent) {
 517                         if (empty($parent)) {
 518                                 # element start a new list
 519                                 $return .= "\n";
 520                         } else {
 521                                 # grab the others elements
 522                                 $return .= Skin::drawCategoryBrowser($parent, $skin) . ' &gt; ';
 523                         }
 524                         # add our current element to the list
 525                         $eltitle = Title::NewFromText($element);
 526                         $return .=  $skin->makeLinkObj( $eltitle, $eltitle->getText() ) ;
 527                 }
 528                 return $return;
 529         }
 530
 531         function getCategories() {
 532                 $catlinks=$this->getCategoryLinks();
 533                 if(!empty($catlinks)) {
 534                         return "<p class='catlinks'>{$catlinks}</p>";
 535                 }
 536         }
 537
 538         function getQuickbarCompensator( $rows = 1 ) {
 539                 return "<td width='152' rowspan='{$rows}'>&nbsp;</td>";
 540         }
 541
 542         /**
 543          * This gets called immediately before the </body> tag.
 544          * @return string HTML to be put after </body> ???
 545          */
 546         function afterContent() {
 547                 $printfooter = "<div class=\"printfooter\">\n" . $this->printFooter() . "</div>\n";
 548                 return $printfooter . $this->doAfterContent();
 549         }
 550
 551         /** @return string Retrievied from HTML text */
 552         function printSource() {
 553                 global $wgTitle;
 554                 $url = htmlspecialchars( $wgTitle->getFullURL() );
 555                 return wfMsg( 'retrievedfrom', '<a href="'.$url.'">'.$url.'</a>' );
 556         }
 557
 558         function printFooter() {
 559                 return "<p>" .  $this->printSource() .
 560                         "</p>\n\n<p>" . $this->pageStats() . "</p>\n";
 561         }
 562
 563         /** overloaded by derived classes */
 564         function doAfterContent() { }
 565
 566         function pageTitleLinks() {
 567                 global $wgOut, $wgTitle, $wgUser, $wgContLang, $wgRequest;
 568
 569                 extract( $wgRequest->getValues( 'oldid', 'diff' ) );
 570                 $action = $wgRequest->getText( 'action' );
 571
 572                 $s = $this->printableLink();
 573                 $disclaimer = $this->disclaimerLink(); # may be empty
 574                 if( $disclaimer ) {
 575                         $s .= ' | ' . $disclaimer;
 576                 }
 577                 $privacy = $this->privacyLink(); # may be empty too
 578                 if( $privacy ) {
 579                         $s .= ' | ' . $privacy;
 580                 }
 581
 582                 if ( $wgOut->isArticleRelated() ) {
 583                         if ( $wgTitle->getNamespace() == NS_IMAGE ) {
 584                                 $name = $wgTitle->getDBkey();
 585                                 $image = new Image( $wgTitle );
 586                                 if( $image->exists() ) {
 587                                         $link = htmlspecialchars( $image->getURL() );
 588                                         $style = $this->getInternalLinkAttributes( $link, $name );
 589                                         $s .= " | <a href=\"{$link}\"{$style}>{$name}</a>";
 590                                 }
 591                         }
 592                 }
 593                 if ( 'history' == $action || isset( $diff ) || isset( $oldid ) ) {
 594                         $s .= ' | ' . $this->makeKnownLinkObj( $wgTitle,
 595                                         wfMsg( 'currentrev' ) );
 596                 }
 597
 598                 if ( $wgUser->getNewtalk() ) {
 599                         # do not show "You have new messages" text when we are viewing our
 600                         # own talk page
 601                         if( !$wgTitle->equals( $wgUser->getTalkPage() ) ) {
 602                                 $tl = $this->makeKnownLinkObj( $wgUser->getTalkPage(), wfMsgHtml( 'newmessageslink' ) );
 603                                 $dl = $this->makeKnownLinkObj( $wgUser->getTalkPage(), wfMsgHtml( 'newmessagesdifflink' ), 'diff=cur' );
 604                                 $s.= ' | <strong>'. wfMsg( 'youhavenewmessages', $tl, $dl ) . '</strong>';
 605                                 # disable caching
 606                                 $wgOut->setSquidMaxage(0);
 607                                 $wgOut->enableClientCache(false);
 608                         }
 609                 }
 610
 611                 $undelete = $this->getUndeleteLink();
 612                 if( !empty( $undelete ) ) {
 613                         $s .= ' | '.$undelete;
 614                 }
 615                 return $s;
 616         }
 617
 618         function getUndeleteLink() {
 619                 global $wgUser, $wgTitle, $wgContLang, $action;
 620                 if(     $wgUser->isAllowed( 'deletedhistory' ) &&
 621                         (($wgTitle->getArticleId() == 0) || ($action == "history")) &&
 622                         ($n = $wgTitle->isDeleted() ) )
 623                 {
 624                         if ( $wgUser->isAllowed( 'delete' ) ) {
 625                                 $msg = 'thisisdeleted';
 626                         } else {
 627                                 $msg = 'viewdeleted';
 628                         }
 629                         return wfMsg( $msg,
 630                                 $this->makeKnownLink(
 631                                         $wgContLang->SpecialPage( 'Undelete/' . $wgTitle->getPrefixedDBkey() ),
 632                                         wfMsg( 'restorelink' . ($n == 1 ? '1' : ''), $n ) ) );
 633                 }
 634                 return '';
 635         }
 636
 637         function printableLink() {
 638                 global $wgOut, $wgFeedClasses, $wgRequest;
 639
 640                 $baseurl = $_SERVER['REQUEST_URI'];
 641                 if( strpos( '?', $baseurl ) == false ) {
 642                         $baseurl .= '?';
 643                 } else {
 644                         $baseurl .= '&';
 645                 }
 646                 $baseurl = htmlspecialchars( $baseurl );
 647                 $printurl = $wgRequest->escapeAppendQuery( 'printable=yes' );
 648
 649                 $s = "<a href=\"$printurl\">" . wfMsg( 'printableversion' ) . '</a>';
 650                 if( $wgOut->isSyndicated() ) {
 651                         foreach( $wgFeedClasses as $format => $class ) {
 652                                 $feedurl = $wgRequest->escapeAppendQuery( "feed=$format" );
 653                                 $s .= " | <a href=\"$feedurl\">{$format}</a>";
 654                         }
 655                 }
 656                 return $s;
 657         }
 658
 659         function pageTitle() {
 660                 global $wgOut, $wgTitle, $wgUser;
 661
 662                 $s = '<h1 class="pagetitle">' . htmlspecialchars( $wgOut->getPageTitle() ) . '</h1>';
 663                 return $s;
 664         }
 665
 666         function pageSubtitle() {
 667                 global $wgOut;
 668
 669                 $sub = $wgOut->getSubtitle();
 670                 if ( '' == $sub ) {
 671                         global $wgExtraSubtitle;
 672                         $sub = wfMsg( 'tagline' ) . $wgExtraSubtitle;
 673                 }
 674                 $subpages = $this->subPageSubtitle();
 675                 $sub .= !empty($subpages)?"</p><p class='subpages'>$subpages":'';
 676                 $s = "<p class='subtitle'>{$sub}</p>\n";
 677                 return $s;
 678         }
 679
 680         function subPageSubtitle() {
 681                 global $wgOut,$wgTitle,$wgNamespacesWithSubpages;
 682                 $subpages = '';
 683                 if($wgOut->isArticle() && !empty($wgNamespacesWithSubpages[$wgTitle->getNamespace()])) {
 684                         $ptext=$wgTitle->getPrefixedText();
 685                         if(preg_match('/\//',$ptext)) {
 686                                 $links = explode('/',$ptext);
 687                                 $c = 0;
 688                                 $growinglink = '';
 689                                 foreach($links as $link) {
 690                                         $c++;
 691                                         if ($c<count($links)) {
 692                                                 $growinglink .= $link;
 693                                                 $getlink = $this->makeLink( $growinglink, $link );
 694                                                 if(preg_match('/class="new"/i',$getlink)) { break; } # this is a hack, but it saves time
 695                                                 if ($c>1) {
 696                                                         $subpages .= ' | ';
 697                                                 } else  {
 698                                                         $subpages .= '&lt; ';
 699                                                 }
 700                                                 $subpages .= $getlink;
 701                                                 $growinglink .= '/';
 702                                         }
 703                                 }
 704                         }
 705                 }
 706                 return $subpages;
 707         }
 708
 709         function nameAndLogin() {
 710                 global $wgUser, $wgTitle, $wgLang, $wgContLang, $wgShowIPinHeader;
 711
 712                 $li = $wgContLang->specialPage( 'Userlogin' );
 713                 $lo = $wgContLang->specialPage( 'Userlogout' );
 714
 715                 $s = '';
 716                 if ( $wgUser->isAnon() ) {
 717                         if( $wgShowIPinHeader && isset( $_COOKIE[ini_get('session.name')] ) ) {
 718                                 $n = wfGetIP();
 719
 720                                 $tl = $this->makeKnownLinkObj( $wgUser->getTalkPage(),
 721                                   $wgLang->getNsText( NS_TALK ) );
 722
 723                                 $s .= $n . ' ('.$tl.')';
 724                         } else {
 725                                 $s .= wfMsg('notloggedin');
 726                         }
 727
 728                         $rt = $wgTitle->getPrefixedURL();
 729                         if ( 0 == strcasecmp( urlencode( $lo ), $rt ) ) {
 730                                 $q = '';
 731                         } else { $q = "returnto={$rt}"; }
 732
 733                         $s .= "\n<br />" . $this->makeKnownLinkObj(
 734                                 Title::makeTitle( NS_SPECIAL, 'Userlogin' ),
 735                                 wfMsg( 'login' ), $q );
 736                 } else {
 737                         $n = $wgUser->getName();
 738                         $rt = $wgTitle->getPrefixedURL();
 739                         $tl = $this->makeKnownLinkObj( $wgUser->getTalkPage(),
 740                           $wgLang->getNsText( NS_TALK ) );
 741
 742                         $tl = " ({$tl})";
 743
 744                         $s .= $this->makeKnownLinkObj( $wgUser->getUserPage(),
 745                           $n ) . "{$tl}<br />" .
 746                           $this->makeKnownLinkObj( Title::makeTitle( NS_SPECIAL, 'Userlogout' ), wfMsg( 'logout' ),
 747                           "returnto={$rt}" ) . ' | ' .
 748                           $this->specialLink( 'preferences' );
 749                 }
 750                 $s .= ' | ' . $this->makeKnownLink( wfMsgForContent( 'helppage' ),
 751                   wfMsg( 'help' ) );
 752
 753                 return $s;
 754         }
 755
 756         function getSearchLink() {
 757                 $searchPage =& Title::makeTitle( NS_SPECIAL, 'Search' );
 758                 return $searchPage->getLocalURL();
 759         }
 760
 761         function escapeSearchLink() {
 762                 return htmlspecialchars( $this->getSearchLink() );
 763         }
 764
 765         function searchForm() {
 766                 global $wgRequest;
 767                 $search = $wgRequest->getText( 'search' );
 768
 769                 $s = '<form name="search" class="inline" method="post" action="'
 770                   . $this->escapeSearchLink() . "\">\n"
 771                   . '<input type="text" name="search" size="19" value="'
 772                   . htmlspecialchars(substr($search,0,256)) . "\" />\n"
 773                   . '<input type="submit" name="go" value="' . wfMsg ('go') . '" />&nbsp;'
 774                   . '<input type="submit" name="fulltext" value="' . wfMsg ('search') . "\" />\n</form>";
 775
 776                 return $s;
 777         }
 778
 779         function topLinks() {
 780                 global $wgOut;
 781                 $sep = " |\n";
 782
 783                 $s = $this->mainPageLink() . $sep
 784                   . $this->specialLink( 'recentchanges' );
 785
 786                 if ( $wgOut->isArticleRelated() ) {
 787                         $s .=  $sep . $this->editThisPage()
 788                           . $sep . $this->historyLink();
 789                 }
 790                 # Many people don't like this dropdown box
 791                 #$s .= $sep . $this->specialPagesList();
 792
 793                 /* show links to different language variants */
 794                 global $wgDisableLangConversion, $wgContLang, $wgTitle;
 795                 $variants = $wgContLang->getVariants();
 796                 if( !$wgDisableLangConversion && sizeof( $variants ) > 1 ) {
 797                         foreach( $variants as $code ) {
 798                                 $varname = $wgContLang->getVariantname( $code );
 799                                 if( $varname == 'disable' )
 800                                         continue;
 801                                 $s .= ' | <a href="' . $wgTitle->getLocalUrl( 'variant=' . $code ) . '">' . $varname . '</a>';
 802                         }
 803                 }
 804
 805                 return $s;
 806         }
 807
 808         function bottomLinks() {
 809                 global $wgOut, $wgUser, $wgTitle, $wgUseTrackbacks;
 810                 $sep = " |\n";
 811
 812                 $s = '';
 813                 if ( $wgOut->isArticleRelated() ) {
 814                         $s .= '<strong>' . $this->editThisPage() . '</strong>';
 815                         if ( $wgUser->isLoggedIn() ) {
 816                                 $s .= $sep . $this->watchThisPage();
 817                         }
 818                         $s .= $sep . $this->talkLink()
 819                           . $sep . $this->historyLink()
 820                           . $sep . $this->whatLinksHere()
 821                           . $sep . $this->watchPageLinksLink();
 822
 823                         if ($wgUseTrackbacks)
 824                                 $s .= $sep . $this->trackbackLink();
 825
 826                         if ( $wgTitle->getNamespace() == NS_USER
 827                             || $wgTitle->getNamespace() == NS_USER_TALK )
 828
 829                         {
 830                                 $id=User::idFromName($wgTitle->getText());
 831                                 $ip=User::isIP($wgTitle->getText());
 832
 833                                 if($id || $ip) { # both anons and non-anons have contri list
 834                                         $s .= $sep . $this->userContribsLink();
 835                                 }
 836                                 if( $this->showEmailUser( $id ) ) {
 837                                         $s .= $sep . $this->emailUserLink();
 838                                 }
 839                         }
 840                         if ( $wgTitle->getArticleId() ) {
 841                                 $s .= "\n<br />";
 842                                 if($wgUser->isAllowed('delete')) { $s .= $this->deleteThisPage(); }
 843                                 if($wgUser->isAllowed('protect')) { $s .= $sep . $this->protectThisPage(); }
 844                                 if($wgUser->isAllowed('move')) { $s .= $sep . $this->moveThisPage(); }
 845                         }
 846                         $s .= "<br />\n" . $this->otherLanguages();
 847                 }
 848                 return $s;
 849         }
 850
 851         function pageStats() {
 852                 global $wgOut, $wgLang, $wgArticle, $wgRequest, $wgUser;
 853                 global $wgDisableCounters, $wgMaxCredits, $wgShowCreditsIfMax, $wgTitle, $wgPageShowWatchingUsers;
 854
 855                 extract( $wgRequest->getValues( 'oldid', 'diff' ) );
 856                 if ( ! $wgOut->isArticle() ) { return ''; }
 857                 if ( isset( $oldid ) || isset( $diff ) ) { return ''; }
 858                 if ( 0 == $wgArticle->getID() ) { return ''; }
 859
 860                 $s = '';
 861                 if ( !$wgDisableCounters ) {
 862                         $count = $wgLang->formatNum( $wgArticle->getCount() );
 863                         if ( $count ) {
 864                                 $s = wfMsg( 'viewcount', $count );
 865                         }
 866                 }
 867
 868                 if (isset($wgMaxCredits) && $wgMaxCredits != 0) {
 869                     require_once('Credits.php');
 870                     $s .= ' ' . getCredits($wgArticle, $wgMaxCredits, $wgShowCreditsIfMax);
 871                 } else {
 872                     $s .= $this->lastModified();
 873                 }
 874
 875                 if ($wgPageShowWatchingUsers && $wgUser->getOption( 'shownumberswatching' )) {
 876                         $dbr =& wfGetDB( DB_SLAVE );
 877                         extract( $dbr->tableNames( 'watchlist' ) );
 878                         $sql = "SELECT COUNT(*) AS n FROM $watchlist
 879                                 WHERE wl_title='" . $dbr->strencode($wgTitle->getDBKey()) .
 880                                 "' AND  wl_namespace=" . $wgTitle->getNamespace() ;
 881                         $res = $dbr->query( $sql, 'Skin::pageStats');
 882                         $x = $dbr->fetchObject( $res );
 883                         $s .= ' ' . wfMsg('number_of_watching_users_pageview', $x->n );
 884                 }
 885
 886                 return $s . ' ' .  $this->getCopyright();
 887         }
 888
 889         function getCopyright() {
 890                 global $wgRightsPage, $wgRightsUrl, $wgRightsText, $wgRequest;
 891
 892
 893                 $oldid = $wgRequest->getVal( 'oldid' );
 894                 $diff = $wgRequest->getVal( 'diff' );
 895
 896                 if ( !is_null( $oldid ) && is_null( $diff ) && wfMsgForContent( 'history_copyright' ) !== '-' ) {
 897                         $msg = 'history_copyright';
 898                 } else {
 899                         $msg = 'copyright';
 900                 }
 901
 902                 $out = '';
 903                 if( $wgRightsPage ) {
 904                         $link = $this->makeKnownLink( $wgRightsPage, $wgRightsText );
 905                 } elseif( $wgRightsUrl ) {
 906                         $link = $this->makeExternalLink( $wgRightsUrl, $wgRightsText );
 907                 } else {
 908                         # Give up now
 909                         return $out;
 910                 }
 911                 $out .= wfMsgForContent( $msg, $link );
 912                 return $out;
 913         }
 914
 915         function getCopyrightIcon() {
 916                 global $wgRightsPage, $wgRightsUrl, $wgRightsText, $wgRightsIcon, $wgCopyrightIcon;
 917                 $out = '';
 918                 if ( isset( $wgCopyrightIcon ) && $wgCopyrightIcon ) {
 919                         $out = $wgCopyrightIcon;
 920                 } else if ( $wgRightsIcon ) {
 921                         $icon = htmlspecialchars( $wgRightsIcon );
 922                         if ( $wgRightsUrl ) {
 923                                 $url = htmlspecialchars( $wgRightsUrl );
 924                                 $out .= '<a href="'.$url.'">';
 925                         }
 926                         $text = htmlspecialchars( $wgRightsText );
 927                         $out .= "<img src=\"$icon\" alt='$text' />";
 928                         if ( $wgRightsUrl ) {
 929                                 $out .= '</a>';
 930                         }
 931                 }
 932                 return $out;
 933         }
 934
 935         function getPoweredBy() {
 936                 global $wgStylePath;
 937                 $url = htmlspecialchars( "$wgStylePath/common/images/poweredby_mediawiki_88x31.png" );
 938                 $img = '<a href="http://www.mediawiki.org/"><img src="'.$url.'" alt="MediaWiki" /></a>';
 939                 return $img;
 940         }
 941
 942         function lastModified() {
 943                 global $wgLang, $wgArticle, $wgLoadBalancer;
 944
 945                 $timestamp = $wgArticle->getTimestamp();
 946                 if ( $timestamp ) {
 947                         $d = $wgLang->timeanddate( $timestamp, true );
 948                         $s = ' ' . wfMsg( 'lastmodified', $d );
 949                 } else {
 950                         $s = '';
 951                 }
 952                 if ( $wgLoadBalancer->getLaggedSlaveMode() ) {
 953                         $s .= ' <strong>' . wfMsg( 'laggedslavemode' ) . '</strong>';
 954                 }
 955                 return $s;
 956         }
 957
 958         function logoText( $align = '' ) {
 959                 if ( '' != $align ) { $a = " align='{$align}'"; }
 960                 else { $a = ''; }
 961
 962                 $mp = wfMsg( 'mainpage' );
 963                 $titleObj = Title::newFromText( $mp );
 964                 if ( is_object( $titleObj ) ) {
 965                         $url = $titleObj->escapeLocalURL();
 966                 } else {
 967                         $url = '';
 968                 }
 969
 970                 $logourl = $this->getLogo();
 971                 $s = "<a href='{$url}'><img{$a} src='{$logourl}' alt='[{$mp}]' /></a>";
 972                 return $s;
 973         }
 974
 975         /**
 976          * show a drop-down box of special pages
 977          * @TODO crash bug913. Need to be rewrote completly.
 978          */
 979         function specialPagesList() {
 980                 global $wgUser, $wgOut, $wgContLang, $wgServer, $wgRedirectScript, $wgAvailableRights;
 981                 require_once('SpecialPage.php');
 982                 $a = array();
 983                 $pages = SpecialPage::getPages();
 984
 985                 // special pages without access restriction
 986                 foreach ( $pages[''] as $name => $page ) {
 987                         $a[$name] = $page->getDescription();
 988                 }
 989
 990                 // Other special pages that are restricted.
 991                 // Copied from SpecialSpecialpages.php
 992                 foreach($wgAvailableRights as $right) {
 993                         if( $wgUser->isAllowed($right) ) {
 994                                 /** Add all pages for this right */
 995                                 if(isset($pages[$right])) {
 996                                         foreach($pages[$right] as $name => $page) {
 997                                         $a[$name] = $page->getDescription();
 998                                         }
 999                                 }
1000                         }
1001                 }
1002
1003                 $go = wfMsg( 'go' );
1004                 $sp = wfMsg( 'specialpages' );
1005                 $spp = $wgContLang->specialPage( 'Specialpages' );
1006
1007                 $s = '<form id="specialpages" method="get" class="inline" ' .
1008                   'action="' . htmlspecialchars( "{$wgServer}{$wgRedirectScript}" ) . "\">\n";
1009                 $s .= "<select name=\"wpDropdown\">\n";
1010                 $s .= "<option value=\"{$spp}\">{$sp}</option>\n";
1011
1012
1013                 foreach ( $a as $name => $desc ) {
1014                         $p = $wgContLang->specialPage( $name );
1015                         $s .= "<option value=\"{$p}\">{$desc}</option>\n";
1016                 }
1017                 $s .= "</select>\n";
1018                 $s .= "<input type='submit' value=\"{$go}\" name='redirect' />\n";
1019                 $s .= "</form>\n";
1020                 return $s;
1021         }
1022
1023         function mainPageLink() {
1024                 $mp = wfMsgForContent( 'mainpage' );
1025                 $mptxt = wfMsg( 'mainpage');
1026                 $s = $this->makeKnownLink( $mp, $mptxt );
1027                 return $s;
1028         }
1029
1030         function copyrightLink() {
1031                 $s = $this->makeKnownLink( wfMsgForContent( 'copyrightpage' ),
1032                   wfMsg( 'copyrightpagename' ) );
1033                 return $s;
1034         }
1035
1036         function privacyLink() {
1037                 $privacy = wfMsg( 'privacy' );
1038                 if ($privacy == '-') {
1039                         return '';
1040                 } else {
1041                         return $this->makeKnownLink( wfMsgForContent( 'privacypage' ), $privacy);
1042                 }
1043         }
1044
1045         function aboutLink() {
1046                 $s = $this->makeKnownLink( wfMsgForContent( 'aboutpage' ),
1047                   wfMsg( 'aboutsite' ) );
1048                 return $s;
1049         }
1050
1051         function disclaimerLink() {
1052                 $disclaimers = wfMsg( 'disclaimers' );
1053                 if ($disclaimers == '-') {
1054                         return '';
1055                 } else {
1056                         return $this->makeKnownLink( wfMsgForContent( 'disclaimerpage' ),
1057                                                      $disclaimers );
1058                 }
1059         }
1060
1061         function editThisPage() {
1062                 global $wgOut, $wgTitle, $wgRequest;
1063
1064                 if ( ! $wgOut->isArticleRelated() ) {
1065                         $s = wfMsg( 'protectedpage' );
1066                 } else {
1067                         if ( $wgTitle->userCanEdit() ) {
1068                                 $t = wfMsg( 'editthispage' );
1069                         } else {
1070                                 $t = wfMsg( 'viewsource' );
1071                         }
1072
1073                         $s = $this->makeKnownLinkObj( $wgTitle, $t, $this->editUrlOptions() );
1074                 }
1075                 return $s;
1076         }
1077
1078         /**
1079          * Return URL options for the 'edit page' link.
1080          * This may include an 'oldid' specifier, if the current page view is such.
1081          *
1082          * @return string
1083          * @access private
1084          */
1085         function editUrlOptions() {
1086                 global $wgArticle;
1087
1088                 if( $this->mRevisionId && ! $wgArticle->isCurrent() ) {
1089                         return "action=edit&oldid=" . intval( $this->mRevisionId );
1090                 } else {
1091                         return "action=edit";
1092                 }
1093         }
1094
1095         function deleteThisPage() {
1096                 global $wgUser, $wgOut, $wgTitle, $wgRequest;
1097
1098                 $diff = $wgRequest->getVal( 'diff' );
1099                 if ( $wgTitle->getArticleId() && ( ! $diff ) && $wgUser->isAllowed('delete') ) {
1100                         $t = wfMsg( 'deletethispage' );
1101
1102                         $s = $this->makeKnownLinkObj( $wgTitle, $t, 'action=delete' );
1103                 } else {
1104                         $s = '';
1105                 }
1106                 return $s;
1107         }
1108
1109         function protectThisPage() {
1110                 global $wgUser, $wgOut, $wgTitle, $wgRequest;
1111
1112                 $diff = $wgRequest->getVal( 'diff' );
1113                 if ( $wgTitle->getArticleId() && ( ! $diff ) && $wgUser->isAllowed('protect') ) {
1114                         if ( $wgTitle->isProtected() ) {
1115                                 $t = wfMsg( 'unprotectthispage' );
1116                                 $q = 'action=unprotect';
1117                         } else {
1118                                 $t = wfMsg( 'protectthispage' );
1119                                 $q = 'action=protect';
1120                         }
1121                         $s = $this->makeKnownLinkObj( $wgTitle, $t, $q );
1122                 } else {
1123                         $s = '';
1124                 }
1125                 return $s;
1126         }
1127
1128         function watchThisPage() {
1129                 global $wgUser, $wgOut, $wgTitle;
1130
1131                 if ( $wgOut->isArticleRelated() ) {
1132                         if ( $wgTitle->userIsWatching() ) {
1133                                 $t = wfMsg( 'unwatchthispage' );
1134                                 $q = 'action=unwatch';
1135                         } else {
1136                                 $t = wfMsg( 'watchthispage' );
1137                                 $q = 'action=watch';
1138                         }
1139                         $s = $this->makeKnownLinkObj( $wgTitle, $t, $q );
1140                 } else {
1141                         $s = wfMsg( 'notanarticle' );
1142                 }
1143                 return $s;
1144         }
1145
1146         function moveThisPage() {
1147                 global $wgTitle;
1148
1149                 if ( $wgTitle->userCanMove() ) {
1150                         return $this->makeKnownLinkObj( Title::makeTitle( NS_SPECIAL, 'Movepage' ),
1151                           wfMsg( 'movethispage' ), 'target=' . $wgTitle->getPrefixedURL() );
1152                 } else {
1153                         // no message if page is protected - would be redundant
1154                         return '';
1155                 }
1156         }
1157
1158         function historyLink() {
1159                 global $wgTitle;
1160
1161                 return $this->makeKnownLinkObj( $wgTitle,
1162                   wfMsg( 'history' ), 'action=history' );
1163         }
1164
1165         function whatLinksHere() {
1166                 global $wgTitle;
1167
1168                 return $this->makeKnownLinkObj( Title::makeTitle( NS_SPECIAL, 'Whatlinkshere' ),
1169                   wfMsg( 'whatlinkshere' ), 'target=' . $wgTitle->getPrefixedURL() );
1170         }
1171
1172         function userContribsLink() {
1173                 global $wgTitle;
1174
1175                 return $this->makeKnownLinkObj( Title::makeTitle( NS_SPECIAL, 'Contributions' ),
1176                   wfMsg( 'contributions' ), 'target=' . $wgTitle->getPartialURL() );
1177         }
1178
1179         function showEmailUser( $id ) {
1180                 global $wgEnableEmail, $wgEnableUserEmail, $wgUser;
1181                 return $wgEnableEmail &&
1182                        $wgEnableUserEmail &&
1183                        $wgUser->isLoggedIn() && # show only to signed in users
1184                        0 != $id; # we can only email to non-anons ..
1185 #                      '' != $id->getEmail() && # who must have an email address stored ..
1186 #                      0 != $id->getEmailauthenticationtimestamp() && # .. which is authenticated
1187 #                      1 != $wgUser->getOption('disablemail'); # and not disabled
1188         }
1189
1190         function emailUserLink() {
1191                 global $wgTitle;
1192
1193                 return $this->makeKnownLinkObj( Title::makeTitle( NS_SPECIAL, 'Emailuser' ),
1194                   wfMsg( 'emailuser' ), 'target=' . $wgTitle->getPartialURL() );
1195         }
1196
1197         function watchPageLinksLink() {
1198                 global $wgOut, $wgTitle;
1199
1200                 if ( ! $wgOut->isArticleRelated() ) {
1201                         return '(' . wfMsg( 'notanarticle' ) . ')';
1202                 } else {
1203                         return $this->makeKnownLinkObj( Title::makeTitle( NS_SPECIAL,
1204                           'Recentchangeslinked' ), wfMsg( 'recentchangeslinked' ),
1205                           'target=' . $wgTitle->getPrefixedURL() );
1206                 }
1207         }
1208
1209         function trackbackLink() {
1210                 global $wgTitle;
1211
1212                 return "<a href=\"" . $wgTitle->trackbackURL() . "\">"
1213                         . wfMsg('trackbacklink') . "</a>";
1214         }
1215
1216         function otherLanguages() {
1217                 global $wgOut, $wgContLang, $wgTitle, $wgHideInterlanguageLinks;
1218
1219                 if ( $wgHideInterlanguageLinks ) {
1220                         return '';
1221                 }
1222
1223                 $a = $wgOut->getLanguageLinks();
1224                 if ( 0 == count( $a ) ) {
1225                         return '';
1226                 }
1227
1228                 $s = wfMsg( 'otherlanguages' ) . ': ';
1229                 $first = true;
1230                 if($wgContLang->isRTL()) $s .= '<span dir="LTR">';
1231                 foreach( $a as $l ) {
1232                         if ( ! $first ) { $s .= ' | '; }
1233                         $first = false;
1234
1235                         $nt = Title::newFromText( $l );
1236                         $url = $nt->escapeFullURL();
1237                         $text = $wgContLang->getLanguageName( $nt->getInterwiki() );
1238
1239                         if ( '' == $text ) { $text = $l; }
1240                         $style = $this->getExternalLinkAttributes( $l, $text );
1241                         $s .= "<a href=\"{$url}\"{$style}>{$text}</a>";
1242                 }
1243                 if($wgContLang->isRTL()) $s .= '</span>';
1244                 return $s;
1245         }
1246
1247         function bugReportsLink() {
1248                 $s = $this->makeKnownLink( wfMsgForContent( 'bugreportspage' ),
1249                   wfMsg( 'bugreports' ) );
1250                 return $s;
1251         }
1252
1253         function dateLink() {
1254                 $t1 = Title::newFromText( gmdate( 'F j' ) );
1255                 $t2 = Title::newFromText( gmdate( 'Y' ) );
1256
1257                 $id = $t1->getArticleID();
1258
1259                 if ( 0 == $id ) {
1260                         $s = $this->makeBrokenLink( $t1->getText() );
1261                 } else {
1262                         $s = $this->makeKnownLink( $t1->getText() );
1263                 }
1264                 $s .= ', ';
1265
1266                 $id = $t2->getArticleID();
1267
1268                 if ( 0 == $id ) {
1269                         $s .= $this->makeBrokenLink( $t2->getText() );
1270                 } else {
1271                         $s .= $this->makeKnownLink( $t2->getText() );
1272                 }
1273                 return $s;
1274         }
1275
1276         function talkLink() {
1277                 global $wgTitle;
1278
1279                 if ( NS_SPECIAL == $wgTitle->getNamespace() ) {
1280                         # No discussion links for special pages
1281                         return '';
1282                 }
1283
1284                 if( $wgTitle->isTalkPage() ) {
1285                         $link = $wgTitle->getSubjectPage();
1286                         switch( $link->getNamespace() ) {
1287                         case NS_MAIN:
1288                                 $text = wfMsg('articlepage');
1289                                 break;
1290                         case NS_USER:
1291                                 $text = wfMsg('userpage');
1292                                 break;
1293                         case NS_PROJECT:
1294                                 $text = wfMsg('wikipediapage');
1295                                 break;
1296                         case NS_IMAGE:
1297                                 $text = wfMsg('imagepage');
1298                                 break;
1299                         default:
1300                                 $text= wfMsg('articlepage');
1301                         }
1302                 } else {
1303                         $link = $wgTitle->getTalkPage();
1304                         $text = wfMsg( 'talkpage' );
1305                 }
1306
1307                 $s = $this->makeLinkObj( $link, $text );
1308
1309                 return $s;
1310         }
1311
1312         function commentLink() {
1313                 global $wgContLang, $wgTitle;
1314
1315                 if ( $wgTitle->getNamespace() == NS_SPECIAL ) {
1316                         return '';
1317                 }
1318                 return $this->makeKnownLinkObj( $wgTitle->getTalkPage(),
1319                         wfMsg( 'postcomment' ), 'action=edit&section=new' );
1320         }
1321
1322         /* these are used extensively in SkinPHPTal, but also some other places */
1323         /*static*/ function makeSpecialUrl( $name, $urlaction='' ) {
1324                 $title = Title::makeTitle( NS_SPECIAL, $name );
1325                 return $title->getLocalURL( $urlaction );
1326         }
1327
1328         /*static*/ function makeI18nUrl ( $name, $urlaction='' ) {
1329                 $title = Title::newFromText( wfMsgForContent($name) );
1330                 $this->checkTitle($title, $name);
1331                 return $title->getLocalURL( $urlaction );
1332         }
1333
1334         /*static*/ function makeUrl ( $name, $urlaction='' ) {
1335                 $title = Title::newFromText( $name );
1336                 $this->checkTitle($title, $name);
1337                 return $title->getLocalURL( $urlaction );
1338         }
1339
1340         # If url string starts with http, consider as external URL, else
1341         # internal
1342         /*static*/ function makeInternalOrExternalUrl( $name ) {
1343                 if ( preg_match( '/^(?:' . wfUrlProtocols() . ')/', $name ) ) {
1344                         return $name;
1345                 } else {
1346                         return $this->makeUrl( $name );
1347                 }
1348         }
1349
1350         # this can be passed the NS number as defined in Language.php
1351         /*static*/ function makeNSUrl( $name, $urlaction='', $namespace=NS_MAIN ) {
1352                 $title = Title::makeTitleSafe( $namespace, $name );
1353                 $this->checkTitle($title, $name);
1354                 return $title->getLocalURL( $urlaction );
1355         }
1356
1357         /* these return an array with the 'href' and boolean 'exists' */
1358         /*static*/ function makeUrlDetails ( $name, $urlaction='' ) {
1359                 $title = Title::newFromText( $name );
1360                 $this->checkTitle($title, $name);
1361                 return array(
1362                         'href' => $title->getLocalURL( $urlaction ),
1363                         'exists' => $title->getArticleID() != 0?true:false
1364                 );
1365         }
1366
1367         /**
1368          * Make URL details where the article exists (or at least it's convenient to think so)
1369          */
1370         function makeKnownUrlDetails( $name, $urlaction='' ) {
1371                 $title = Title::newFromText( $name );
1372                 $this->checkTitle($title, $name);
1373                 return array(
1374                         'href' => $title->getLocalURL( $urlaction ),
1375                         'exists' => true
1376                 );
1377         }
1378
1379         # make sure we have some title to operate on
1380         /*static*/ function checkTitle ( &$title, &$name ) {
1381                 if(!is_object($title)) {
1382                         $title = Title::newFromText( $name );
1383                         if(!is_object($title)) {
1384                                 $title = Title::newFromText( '--error: link target missing--' );
1385                         }
1386                 }
1387         }
1388
1389         /**
1390          * Build an array that represents the sidebar(s), the navigation bar among them
1391          *
1392          * @return array
1393          * @access private
1394          */
1395         function buildSidebar() {
1396                 global $wgTitle, $action, $wgDBname, $parserMemc;
1397
1398                 $fname = 'SkinTemplate::buildSidebar';
1399
1400                 wfProfileIn( $fname );
1401                 $cachedsidebar=$parserMemc->get("{$wgDBname}:sidebar");
1402                 if ($cachedsidebar!="") {
1403                         wfProfileOut($fname);
1404                         return $cachedsidebar;
1405                 }
1406
1407                 $bar = array();
1408                 $lines = explode( "\n", wfMsgForContent( 'sidebar' ) );
1409                 foreach ($lines as $line) {
1410                         if (strpos($line, '*') !== 0)
1411                                 continue;
1412                         if (strpos($line, '**') !== 0) {
1413                                 $line = trim($line, '* ');
1414                                 $heading = $line;
1415                         } else {
1416                                 if (strpos($line, '|') !== false) { // sanity check
1417                                         $line = explode( '|' , trim($line, '* '), 2 );
1418                                         $link = wfMsgForContent( $line[0] );
1419                                         if ($link == '-')
1420                                                 continue;
1421                                         if (wfEmptyMsg($line[1], $text = wfMsg($line[1])))
1422                                                 $text = $line[1];
1423                                         if (wfEmptyMsg($line[0], $link))
1424                                                 $link = $line[0];
1425                                         $href = $this->makeInternalOrExternalUrl( $link );
1426                                         $bar[$heading][] = array(
1427                                                 'text' => $text,
1428                                                 'href' => $href,
1429                                                 'id' => 'n-' . strtr($line[1], ' ', '-'),
1430                                                 'active' => false
1431                                         );
1432                                 } else { continue; }
1433                         }
1434                 }
1435
1436                 $cachednotice=$parserMemc->set("{$wgDBname}:sidebar",$bar,86400);
1437                 wfProfileOut( $fname );
1438                 return $bar;
1439         }
1440 }
1441 ?>