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
  13 /**
  14  * The main skin class that provide methods and properties for all other skins.
  15  * This base class is also the "Standard" skin.
  16  * @package MediaWiki
  17  */
  18 class Skin extends Linker {
  19         /**#@+
  20          * @private
  21          */
  22         var $lastdate, $lastline;
  23         var $rc_cache ; # Cache for Enhanced Recent Changes
  24         var $rcCacheIndex ; # Recent Changes Cache Counter for visibility toggle
  25         var $rcMoveIndex;
  26         /**#@-*/
  27
  28         /** Constructor, call parent constructor */
  29         function Skin() { parent::Linker(); }
  30
  31         /**
  32          * Fetch the set of available skins.
  33          * @return array of strings
  34          * @static
  35          */
  36         static function &getSkinNames() {
  37                 global $wgValidSkinNames;
  38                 static $skinsInitialised = false;
  39                 if ( !$skinsInitialised ) {
  40                         # Get a list of available skins
  41                         # Build using the regular expression '^(.*).php$'
  42                         # Array keys are all lower case, array value keep the case used by filename
  43                         #
  44                         wfProfileIn( __METHOD__ . '-init' );
  45                         global $wgStyleDirectory;
  46                         $skinDir = dir( $wgStyleDirectory );
  47
  48                         # while code from www.php.net
  49                         while (false !== ($file = $skinDir->read())) {
  50                                 // Skip non-PHP files, hidden files, and '.dep' includes
  51                                 if(preg_match('/^([^.]*)\.php$/',$file, $matches)) {
  52                                         $aSkin = $matches[1];
  53                                         $wgValidSkinNames[strtolower($aSkin)] = $aSkin;
  54                                 }
  55                         }
  56                         $skinDir->close();
  57                         $skinsInitialised = true;
  58                         wfProfileOut( __METHOD__ . '-init' );
  59                 }
  60                 return $wgValidSkinNames;
  61         }
  62
  63         /**
  64          * Normalize a skin preference value to a form that can be loaded.
  65          * If a skin can't be found, it will fall back to the configured
  66          * default (or the old 'Classic' skin if that's broken).
  67          * @param string $key
  68          * @return string
  69          * @static
  70          */
  71         static function normalizeKey( $key ) {
  72                 global $wgDefaultSkin;
  73                 $skinNames = Skin::getSkinNames();
  74
  75                 if( $key == '' ) {
  76                         // Don't return the default immediately;
  77                         // in a misconfiguration we need to fall back.
  78                         $key = $wgDefaultSkin;
  79                 }
  80
  81                 if( isset( $skinNames[$key] ) ) {
  82                         return $key;
  83                 }
  84
  85                 // Older versions of the software used a numeric setting
  86                 // in the user preferences.
  87                 $fallback = array(
  88                         0 => $wgDefaultSkin,
  89                         1 => 'nostalgia',
  90                         2 => 'cologneblue' );
  91
  92                 if( isset( $fallback[$key] ) ){
  93                         $key = $fallback[$key];
  94                 }
  95
  96                 if( isset( $skinNames[$key] ) ) {
  97                         return $key;
  98                 } else {
  99                         // The old built-in skin
 100                         return 'standard';
 101                 }
 102         }
 103
 104         /**
 105          * Factory method for loading a skin of a given type
 106          * @param string $key 'monobook', 'standard', etc
 107          * @return Skin
 108          * @static
 109          */
 110         static function &newFromKey( $key ) {
 111                 global $wgStyleDirectory;
 112
 113                 $key = Skin::normalizeKey( $key );
 114
 115                 $skinNames = Skin::getSkinNames();
 116                 $skinName = $skinNames[$key];
 117
 118                 # Grab the skin class and initialise it.
 119                 wfSuppressWarnings();
 120                 // Preload base classes to work around APC/PHP5 bug
 121                 include_once( "{$wgStyleDirectory}/{$skinName}.deps.php" );
 122                 wfRestoreWarnings();
 123                 require_once( "{$wgStyleDirectory}/{$skinName}.php" );
 124
 125                 # Check if we got if not failback to default skin
 126                 $className = 'Skin'.$skinName;
 127                 if( !class_exists( $className ) ) {
 128                         # DO NOT die if the class isn't found. This breaks maintenance
 129                         # scripts and can cause a user account to be unrecoverable
 130                         # except by SQL manipulation if a previously valid skin name
 131                         # is no longer valid.
 132                         wfDebug( "Skin class does not exist: $className\n" );
 133                         $className = 'SkinStandard';
 134                         require_once( "{$wgStyleDirectory}/Standard.php" );
 135                 }
 136                 $skin = new $className;
 137                 return $skin;
 138         }
 139
 140         /** @return string path to the skin stylesheet */
 141         function getStylesheet() {
 142                 return 'common/wikistandard.css';
 143         }
 144
 145         /** @return string skin name */
 146         function getSkinName() {
 147                 return 'standard';
 148         }
 149
 150         function qbSetting() {
 151                 global $wgOut, $wgUser;
 152
 153                 if ( $wgOut->isQuickbarSuppressed() ) { return 0; }
 154                 $q = $wgUser->getOption( 'quickbar' );
 155                 if ( '' == $q ) { $q = 0; }
 156                 return $q;
 157         }
 158
 159         function initPage( &$out ) {
 160                 global $wgFavicon, $wgScriptPath, $wgSitename, $wgLanguageCode, $wgLanguageNames;
 161
 162                 $fname = 'Skin::initPage';
 163                 wfProfileIn( $fname );
 164
 165                 if( false !== $wgFavicon ) {
 166                         $out->addLink( array( 'rel' => 'shortcut icon', 'href' => $wgFavicon ) );
 167                 }
 168
 169                 # OpenSearch description link
 170                 $out->addLink( array(
 171                         'rel' => 'search',
 172                         'type' => 'application/opensearchdescription+xml',
 173                         'href' => "$wgScriptPath/opensearch_desc.php",
 174                         'title' => "$wgSitename ({$wgLanguageNames[$wgLanguageCode]})",
 175                 ));
 176
 177                 $this->addMetadataLinks($out);
 178
 179                 $this->mRevisionId = $out->mRevisionId;
 180
 181                 $this->preloadExistence();
 182
 183                 wfProfileOut( $fname );
 184         }
 185
 186         /**
 187          * Preload the existence of three commonly-requested pages in a single query
 188          */
 189         function preloadExistence() {
 190                 global $wgUser, $wgTitle;
 191
 192                 if ( $wgTitle->isTalkPage() ) {
 193                         $otherTab = $wgTitle->getSubjectPage();
 194                 } else {
 195                         $otherTab = $wgTitle->getTalkPage();
 196                 }
 197                 $lb = new LinkBatch( array(
 198                         $wgUser->getUserPage(),
 199                         $wgUser->getTalkPage(),
 200                         $otherTab
 201                 ));
 202                 $lb->execute();
 203         }
 204
 205         function addMetadataLinks( &$out ) {
 206                 global $wgTitle, $wgEnableDublinCoreRdf, $wgEnableCreativeCommonsRdf;
 207                 global $wgRightsPage, $wgRightsUrl;
 208
 209                 if( $out->isArticleRelated() ) {
 210                         # note: buggy CC software only reads first "meta" link
 211                         if( $wgEnableCreativeCommonsRdf ) {
 212                                 $out->addMetadataLink( array(
 213                                         'title' => 'Creative Commons',
 214                                         'type' => 'application/rdf+xml',
 215                                         'href' => $wgTitle->getLocalURL( 'action=creativecommons') ) );
 216                         }
 217                         if( $wgEnableDublinCoreRdf ) {
 218                                 $out->addMetadataLink( array(
 219                                         'title' => 'Dublin Core',
 220                                         'type' => 'application/rdf+xml',
 221                                         'href' => $wgTitle->getLocalURL( 'action=dublincore' ) ) );
 222                         }
 223                 }
 224                 $copyright = '';
 225                 if( $wgRightsPage ) {
 226                         $copy = Title::newFromText( $wgRightsPage );
 227                         if( $copy ) {
 228                                 $copyright = $copy->getLocalURL();
 229                         }
 230                 }
 231                 if( !$copyright && $wgRightsUrl ) {
 232                         $copyright = $wgRightsUrl;
 233                 }
 234                 if( $copyright ) {
 235                         $out->addLink( array(
 236                                 'rel' => 'copyright',
 237                                 'href' => $copyright ) );
 238                 }
 239         }
 240
 241         function outputPage( &$out ) {
 242                 global $wgDebugComments;
 243
 244                 wfProfileIn( 'Skin::outputPage' );
 245                 $this->initPage( $out );
 246
 247                 $out->out( $out->headElement() );
 248
 249                 $out->out( "\n<body" );
 250                 $ops = $this->getBodyOptions();
 251                 foreach ( $ops as $name => $val ) {
 252                         $out->out( " $name='$val'" );
 253                 }
 254                 $out->out( ">\n" );
 255                 if ( $wgDebugComments ) {
 256                         $out->out( "<!-- Wiki debugging output:\n" .
 257                           $out->mDebugtext . "-->\n" );
 258                 }
 259
 260                 $out->out( $this->beforeContent() );
 261
 262                 $out->out( $out->mBodytext . "\n" );
 263
 264                 $out->out( $this->afterContent() );
 265
 266                 $out->out( $this->bottomScripts() );
 267
 268                 $out->out( $out->reportTime() );
 269
 270                 $out->out( "\n</body></html>" );
 271         }
 272
 273         static function makeGlobalVariablesScript( $data ) {
 274                 $r = '<script type= "' . $data['jsmimetype'] . '">
 275                         var skin = "' . Xml::escapeJsString( $data['skinname'] ) . '";
 276                         var stylepath = "' . Xml::escapeJsString( $data['stylepath'] ) . '";
 277
 278                         var wgArticlePath = "' . Xml::escapeJsString( $data['articlepath'] ) . '";
 279                         var wgScriptPath = "' . Xml::escapeJsString( $data['scriptpath'] ) . '";
 280                         var wgServer = "' . Xml::escapeJsString( $data['serverurl'] ) . '";
 281
 282                         var wgCanonicalNamespace = "' . Xml::escapeJsString( $data['nscanonical'] ) . '";
 283                         var wgNamespaceNumber = ' . (int)$data['nsnumber'] . ';
 284                         var wgPageName = "' . Xml::escapeJsString( $data['titleprefixeddbkey'] ) . '";
 285                         var wgTitle = "' . Xml::escapeJsString( $data['titletext'] ) . '";
 286                         var wgArticleId = ' . (int)$data['articleid'] . ';
 287                         var wgIsArticle = ' . ( $data['isarticle'] ? 'true' : 'false' ) . ';
 288
 289                         var wgUserName = ' . ( $data['username'] == NULL ? 'null' : ( '"' . Xml::escapeJsString( $data['username'] ) . '"' ) ) . ';
 290                         var wgUserLanguage = "' . Xml::escapeJsString( $data['userlang'] ) . '";
 291                         var wgContentLanguage = "' . Xml::escapeJsString( $data['lang'] ) . '";
 292                 </script>
 293                 ';
 294
 295                 return $r;
 296         }
 297
 298         function getHeadScripts() {
 299                 global $wgStylePath, $wgUser, $wgAllowUserJs, $wgJsMimeType, $wgStyleVersion;
 300                 global $wgArticlePath, $wgScriptPath, $wgServer, $wgContLang, $wgLang;
 301                 global $wgTitle, $wgCanonicalNamespaceNames, $wgOut;
 302
 303                 $nsname = @$wgCanonicalNamespaceNames[ $wgTitle->getNamespace() ];
 304                 if ( $nsname === NULL ) $nsname = $wgTitle->getNsText();
 305
 306                 $vars = array(
 307                         'jsmimetype' => $wgJsMimeType,
 308                         'skinname' => $this->getSkinName(),
 309                         'stylepath' => $wgStylePath,
 310                         'articlepath' => $wgArticlePath,
 311                         'scriptpath' => $wgScriptPath,
 312                         'serverurl' => $wgServer,
 313                         'nscanonical' => $nsname,
 314                         'nsnumber' => $wgTitle->getNamespace(),
 315                         'titleprefixeddbkey' => $wgTitle->getPrefixedDBKey(),
 316                         'titletext' => $wgTitle->getText(),
 317                         'articleid' => $wgTitle->getArticleId(),
 318                         'isarticle' => $wgOut->isArticle(),
 319                         'username' => $wgUser->isAnon() ? NULL : $wgUser->getName(),
 320                         'userlang' => $wgLang->getCode(),
 321                         'lang' => $wgContLang->getCode(),
 322                 );
 323
 324                 $r = self::makeGlobalVariablesScript( $vars );
 325
 326                 $r .= "<script type=\"{$wgJsMimeType}\" src=\"{$wgStylePath}/common/wikibits.js?$wgStyleVersion\"></script>\n";
 327                 if( $wgAllowUserJs && $wgUser->isLoggedIn() ) {
 328                         $userpage = $wgUser->getUserPage();
 329                         $userjs = htmlspecialchars( self::makeUrl(
 330                                 $userpage->getPrefixedText().'/'.$this->getSkinName().'.js',
 331                                 'action=raw&ctype='.$wgJsMimeType));
 332                         $r .= '<script type="'.$wgJsMimeType.'" src="'.$userjs."\"></script>\n";
 333                 }
 334                 return $r;
 335         }
 336
 337         /**
 338          * To make it harder for someone to slip a user a fake
 339          * user-JavaScript or user-CSS preview, a random token
 340          * is associated with the login session. If it's not
 341          * passed back with the preview request, we won't render
 342          * the code.
 343          *
 344          * @param string $action
 345          * @return bool
 346          * @private
 347          */
 348         function userCanPreview( $action ) {
 349                 global $wgTitle, $wgRequest, $wgUser;
 350
 351                 if( $action != 'submit' )
 352                         return false;
 353                 if( !$wgRequest->wasPosted() )
 354                         return false;
 355                 if( !$wgTitle->userCanEditCssJsSubpage() )
 356                         return false;
 357                 return $wgUser->matchEditToken(
 358                         $wgRequest->getVal( 'wpEditToken' ) );
 359         }
 360
 361         # get the user/site-specific stylesheet, SkinTemplate loads via RawPage.php (settings are cached that way)
 362         function getUserStylesheet() {
 363                 global $wgStylePath, $wgRequest, $wgContLang, $wgSquidMaxage, $wgStyleVersion;
 364                 $sheet = $this->getStylesheet();
 365                 $action = $wgRequest->getText('action');
 366                 $s = "@import \"$wgStylePath/common/common.css?$wgStyleVersion\";\n";
 367                 $s .= "@import \"$wgStylePath/$sheet?$wgStyleVersion\";\n";
 368                 if($wgContLang->isRTL()) $s .= "@import \"$wgStylePath/common/common_rtl.css?$wgStyleVersion\";\n";
 369
 370                 $query = "usemsgcache=yes&action=raw&ctype=text/css&smaxage=$wgSquidMaxage";
 371                 $s .= '@import "' . self::makeNSUrl( 'Common.css', $query, NS_MEDIAWIKI ) . "\";\n" .
 372                         '@import "' . self::makeNSUrl( ucfirst( $this->getSkinName() . '.css' ), $query, NS_MEDIAWIKI ) . "\";\n";
 373
 374                 $s .= $this->doGetUserStyles();
 375                 return $s."\n";
 376         }
 377
 378         /**
 379          * placeholder, returns generated js in monobook
 380          */
 381         function getUserJs() { return; }
 382
 383         /**
 384          * Return html code that include User stylesheets
 385          */
 386         function getUserStyles() {
 387                 $s = "<style type='text/css'>\n";
 388                 $s .= "/*/*/ /*<![CDATA[*/\n"; # <-- Hide the styles from Netscape 4 without hiding them from IE/Mac
 389                 $s .= $this->getUserStylesheet();
 390                 $s .= "/*]]>*/ /* */\n";
 391                 $s .= "</style>\n";
 392                 return $s;
 393         }
 394
 395         /**
 396          * Some styles that are set by user through the user settings interface.
 397          */
 398         function doGetUserStyles() {
 399                 global $wgUser, $wgUser, $wgRequest, $wgTitle, $wgAllowUserCss;
 400
 401                 $s = '';
 402
 403                 if( $wgAllowUserCss && $wgUser->isLoggedIn() ) { # logged in
 404                         if($wgTitle->isCssSubpage() && $this->userCanPreview( $wgRequest->getText( 'action' ) ) ) {
 405                                 $s .= $wgRequest->getText('wpTextbox1');
 406                         } else {
 407                                 $userpage = $wgUser->getUserPage();
 408                                 $s.= '@import "'.self::makeUrl(
 409                                         $userpage->getPrefixedText().'/'.$this->getSkinName().'.css',
 410                                         'action=raw&ctype=text/css').'";'."\n";
 411                         }
 412                 }
 413
 414                 return $s . $this->reallyDoGetUserStyles();
 415         }
 416
 417         function reallyDoGetUserStyles() {
 418                 global $wgUser;
 419                 $s = '';
 420                 if (($undopt = $wgUser->getOption("underline")) != 2) {
 421                         $underline = $undopt ? 'underline' : 'none';
 422                         $s .= "a { text-decoration: $underline; }\n";
 423                 }
 424                 if( $wgUser->getOption( 'highlightbroken' ) ) {
 425                         $s .= "a.new, #quickbar a.new { color: #CC2200; }\n";
 426                 } else {
 427                         $s .= <<<END
 428 a.new, #quickbar a.new,
 429 a.stub, #quickbar a.stub {
 430         color: inherit;
 431         text-decoration: inherit;
 432 }
 433 a.new:after, #quickbar a.new:after {
 434         content: "?";
 435         color: #CC2200;
 436         text-decoration: $underline;
 437 }
 438 a.stub:after, #quickbar a.stub:after {
 439         content: "!";
 440         color: #772233;
 441         text-decoration: $underline;
 442 }
 443 END;
 444                 }
 445                 if( $wgUser->getOption( 'justify' ) ) {
 446                         $s .= "#article, #bodyContent { text-align: justify; }\n";
 447                 }
 448                 if( !$wgUser->getOption( 'showtoc' ) ) {
 449                         $s .= "#toc { display: none; }\n";
 450                 }
 451                 if( !$wgUser->getOption( 'editsection' ) ) {
 452                         $s .= ".editsection { display: none; }\n";
 453                 }
 454                 return $s;
 455         }
 456
 457         function getBodyOptions() {
 458                 global $wgUser, $wgTitle, $wgOut, $wgRequest, $wgContLang;
 459
 460                 extract( $wgRequest->getValues( 'oldid', 'redirect', 'diff' ) );
 461
 462                 if ( 0 != $wgTitle->getNamespace() ) {
 463                         $a = array( 'bgcolor' => '#ffffec' );
 464                 }
 465                 else $a = array( 'bgcolor' => '#FFFFFF' );
 466                 if($wgOut->isArticle() && $wgUser->getOption('editondblclick') &&
 467                   $wgTitle->userCanEdit() ) {
 468                         $t = wfMsg( 'editthispage' );
 469                         $s = $wgTitle->getFullURL( $this->editUrlOptions() );
 470                         $s = 'document.location = "' .wfEscapeJSString( $s ) .'";';
 471                         $a += array ('ondblclick' => $s);
 472
 473                 }
 474                 $a['onload'] = $wgOut->getOnloadHandler();
 475                 if( $wgUser->getOption( 'editsectiononrightclick' ) ) {
 476                         if( $a['onload'] != '' ) {
 477                                 $a['onload'] .= ';';
 478                         }
 479                         $a['onload'] .= 'setupRightClickEdit()';
 480                 }
 481                 $a['class'] = 'ns-'.$wgTitle->getNamespace().' '.($wgContLang->isRTL() ? "rtl" : "ltr").
 482                 ' '.Sanitizer::escapeId( 'page-'.$wgTitle->getPrefixedText() );
 483                 return $a;
 484         }
 485
 486         /**
 487          * URL to the logo
 488          */
 489         function getLogo() {
 490                 global $wgLogo;
 491                 return $wgLogo;
 492         }
 493
 494         /**
 495          * This will be called immediately after the <body> tag.  Split into
 496          * two functions to make it easier to subclass.
 497          */
 498         function beforeContent() {
 499                 return $this->doBeforeContent();
 500         }
 501
 502         function doBeforeContent() {
 503                 global $wgContLang;
 504                 $fname = 'Skin::doBeforeContent';
 505                 wfProfileIn( $fname );
 506
 507                 $s = '';
 508                 $qb = $this->qbSetting();
 509
 510                 if( $langlinks = $this->otherLanguages() ) {
 511                         $rows = 2;
 512                         $borderhack = '';
 513                 } else {
 514                         $rows = 1;
 515                         $langlinks = false;
 516                         $borderhack = 'class="top"';
 517                 }
 518
 519                 $s .= "\n<div id='content'>\n<div id='topbar'>\n" .
 520                   "<table border='0' cellspacing='0' width='98%'>\n<tr>\n";
 521
 522                 $shove = ($qb != 0);
 523                 $left = ($qb == 1 || $qb == 3);
 524                 if($wgContLang->isRTL()) $left = !$left;
 525
 526                 if ( !$shove ) {
 527                         $s .= "<td class='top' align='left' valign='top' rowspan='{$rows}'>\n" .
 528                           $this->logoText() . '</td>';
 529                 } elseif( $left ) {
 530                         $s .= $this->getQuickbarCompensator( $rows );
 531                 }
 532                 $l = $wgContLang->isRTL() ? 'right' : 'left';
 533                 $s .= "<td {$borderhack} align='$l' valign='top'>\n";
 534
 535                 $s .= $this->topLinks() ;
 536                 $s .= "<p class='subtitle'>" . $this->pageTitleLinks() . "</p>\n";
 537
 538                 $r = $wgContLang->isRTL() ? "left" : "right";
 539                 $s .= "</td>\n<td {$borderhack} valign='top' align='$r' nowrap='nowrap'>";
 540                 $s .= $this->nameAndLogin();
 541                 $s .= "\n<br />" . $this->searchForm() . "</td>";
 542
 543                 if ( $langlinks ) {
 544                         $s .= "</tr>\n<tr>\n<td class='top' colspan=\"2\">$langlinks</td>\n";
 545                 }
 546
 547                 if ( $shove && !$left ) { # Right
 548                         $s .= $this->getQuickbarCompensator( $rows );
 549                 }
 550                 $s .= "</tr>\n</table>\n</div>\n";
 551                 $s .= "\n<div id='article'>\n";
 552
 553                 $notice = wfGetSiteNotice();
 554                 if( $notice ) {
 555                         $s .= "\n<div id='siteNotice'>$notice</div>\n";
 556                 }
 557                 $s .= $this->pageTitle();
 558                 $s .= $this->pageSubtitle() ;
 559                 $s .= $this->getCategories();
 560                 wfProfileOut( $fname );
 561                 return $s;
 562         }
 563
 564
 565         function getCategoryLinks () {
 566                 global $wgOut, $wgTitle, $wgUseCategoryBrowser;
 567                 global $wgContLang;
 568
 569                 if( count( $wgOut->mCategoryLinks ) == 0 ) return '';
 570
 571                 # Separator
 572                 $sep = wfMsgHtml( 'catseparator' );
 573
 574                 // Use Unicode bidi embedding override characters,
 575                 // to make sure links don't smash each other up in ugly ways.
 576                 $dir = $wgContLang->isRTL() ? 'rtl' : 'ltr';
 577                 $embed = "<span dir='$dir'>";
 578                 $pop = '</span>';
 579                 $t = $embed . implode ( "{$pop} {$sep} {$embed}" , $wgOut->mCategoryLinks ) . $pop;
 580
 581                 $msg = wfMsgExt( 'pagecategories', array( 'parsemag', 'escape' ), count( $wgOut->mCategoryLinks ) );
 582                 $s = $this->makeKnownLinkObj( SpecialPage::getTitleFor( 'Categories' ),
 583                         $msg, 'article=' . urlencode( $wgTitle->getPrefixedDBkey() ) )
 584                         . ': ' . $t;
 585
 586                 # optional 'dmoz-like' category browser. Will be shown under the list
 587                 # of categories an article belong to
 588                 if($wgUseCategoryBrowser) {
 589                         $s .= '<br /><hr />';
 590
 591                         # get a big array of the parents tree
 592                         $parenttree = $wgTitle->getParentCategoryTree();
 593                         # Skin object passed by reference cause it can not be
 594                         # accessed under the method subfunction drawCategoryBrowser
 595                         $tempout = explode("\n", Skin::drawCategoryBrowser($parenttree, $this) );
 596                         # Clean out bogus first entry and sort them
 597                         unset($tempout[0]);
 598                         asort($tempout);
 599                         # Output one per line
 600                         $s .= implode("<br />\n", $tempout);
 601                 }
 602
 603                 return $s;
 604         }
 605
 606         /** Render the array as a serie of links.
 607          * @param $tree Array: categories tree returned by Title::getParentCategoryTree
 608          * @param &skin Object: skin passed by reference
 609          * @return String separated by &gt;, terminate with "\n"
 610          */
 611         function drawCategoryBrowser($tree, &$skin) {
 612                 $return = '';
 613                 foreach ($tree as $element => $parent) {
 614                         if (empty($parent)) {
 615                                 # element start a new list
 616                                 $return .= "\n";
 617                         } else {
 618                                 # grab the others elements
 619                                 $return .= Skin::drawCategoryBrowser($parent, $skin) . ' &gt; ';
 620                         }
 621                         # add our current element to the list
 622                         $eltitle = Title::NewFromText($element);
 623                         $return .=  $skin->makeLinkObj( $eltitle, $eltitle->getText() ) ;
 624                 }
 625                 return $return;
 626         }
 627
 628         function getCategories() {
 629                 $catlinks=$this->getCategoryLinks();
 630                 if(!empty($catlinks)) {
 631                         return "<p class='catlinks'>{$catlinks}</p>";
 632                 }
 633         }
 634
 635         function getQuickbarCompensator( $rows = 1 ) {
 636                 return "<td width='152' rowspan='{$rows}'>&nbsp;</td>";
 637         }
 638
 639         /**
 640          * This gets called shortly before the \</body\> tag.
 641          * @return String HTML to be put before \</body\>
 642          */
 643         function afterContent() {
 644                 $printfooter = "<div class=\"printfooter\">\n" . $this->printFooter() . "</div>\n";
 645                 return $printfooter . $this->doAfterContent();
 646         }
 647
 648         /**
 649          * This gets called shortly before the \</body\> tag.
 650          * @return String HTML-wrapped JS code to be put before \</body\>
 651          */
 652         function bottomScripts() {
 653                 global $wgJsMimeType;
 654                 return "\n\t\t<script type=\"$wgJsMimeType\">if (window.runOnloadHook) runOnloadHook();</script>\n";
 655         }
 656
 657         /** @return string Retrievied from HTML text */
 658         function printSource() {
 659                 global $wgTitle;
 660                 $url = htmlspecialchars( $wgTitle->getFullURL() );
 661                 return wfMsg( 'retrievedfrom', '<a href="'.$url.'">'.$url.'</a>' );
 662         }
 663
 664         function printFooter() {
 665                 return "<p>" .  $this->printSource() .
 666                         "</p>\n\n<p>" . $this->pageStats() . "</p>\n";
 667         }
 668
 669         /** overloaded by derived classes */
 670         function doAfterContent() { }
 671
 672         function pageTitleLinks() {
 673                 global $wgOut, $wgTitle, $wgUser, $wgRequest;
 674
 675                 extract( $wgRequest->getValues( 'oldid', 'diff' ) );
 676                 $action = $wgRequest->getText( 'action' );
 677
 678                 $s = $this->printableLink();
 679                 $disclaimer = $this->disclaimerLink(); # may be empty
 680                 if( $disclaimer ) {
 681                         $s .= ' | ' . $disclaimer;
 682                 }
 683                 $privacy = $this->privacyLink(); # may be empty too
 684                 if( $privacy ) {
 685                         $s .= ' | ' . $privacy;
 686                 }
 687
 688                 if ( $wgOut->isArticleRelated() ) {
 689                         if ( $wgTitle->getNamespace() == NS_IMAGE ) {
 690                                 $name = $wgTitle->getDBkey();
 691                                 $image = new Image( $wgTitle );
 692                                 if( $image->exists() ) {
 693                                         $link = htmlspecialchars( $image->getURL() );
 694                                         $style = $this->getInternalLinkAttributes( $link, $name );
 695                                         $s .= " | <a href=\"{$link}\"{$style}>{$name}</a>";
 696                                 }
 697                         }
 698                 }
 699                 if ( 'history' == $action || isset( $diff ) || isset( $oldid ) ) {
 700                         $s .= ' | ' . $this->makeKnownLinkObj( $wgTitle,
 701                                         wfMsg( 'currentrev' ) );
 702                 }
 703
 704                 if ( $wgUser->getNewtalk() ) {
 705                         # do not show "You have new messages" text when we are viewing our
 706                         # own talk page
 707                         if( !$wgTitle->equals( $wgUser->getTalkPage() ) ) {
 708                                 $tl = $this->makeKnownLinkObj( $wgUser->getTalkPage(), wfMsgHtml( 'newmessageslink' ), 'redirect=no' );
 709                                 $dl = $this->makeKnownLinkObj( $wgUser->getTalkPage(), wfMsgHtml( 'newmessagesdifflink' ), 'diff=cur' );
 710                                 $s.= ' | <strong>'. wfMsg( 'youhavenewmessages', $tl, $dl ) . '</strong>';
 711                                 # disable caching
 712                                 $wgOut->setSquidMaxage(0);
 713                                 $wgOut->enableClientCache(false);
 714                         }
 715                 }
 716
 717                 $undelete = $this->getUndeleteLink();
 718                 if( !empty( $undelete ) ) {
 719                         $s .= ' | '.$undelete;
 720                 }
 721                 return $s;
 722         }
 723
 724         function getUndeleteLink() {
 725                 global $wgUser, $wgTitle, $wgContLang, $action;
 726                 if(     $wgUser->isAllowed( 'deletedhistory' ) &&
 727                         (($wgTitle->getArticleId() == 0) || ($action == "history")) &&
 728                         ($n = $wgTitle->isDeleted() ) )
 729                 {
 730                         if ( $wgUser->isAllowed( 'delete' ) ) {
 731                                 $msg = 'thisisdeleted';
 732                         } else {
 733                                 $msg = 'viewdeleted';
 734                         }
 735                         return wfMsg( $msg,
 736                                 $this->makeKnownLink(
 737                                         $wgContLang->SpecialPage( 'Undelete/' . $wgTitle->getPrefixedDBkey() ),
 738                                         wfMsgExt( 'restorelink', array( 'parsemag', 'escape' ), $n ) ) );
 739                 }
 740                 return '';
 741         }
 742
 743         function printableLink() {
 744                 global $wgOut, $wgFeedClasses, $wgRequest;
 745
 746                 $baseurl = $_SERVER['REQUEST_URI'];
 747                 if( strpos( '?', $baseurl ) == false ) {
 748                         $baseurl .= '?';
 749                 } else {
 750                         $baseurl .= '&';
 751                 }
 752                 $baseurl = htmlspecialchars( $baseurl );
 753                 $printurl = $wgRequest->escapeAppendQuery( 'printable=yes' );
 754
 755                 $s = "<a href=\"$printurl\">" . wfMsg( 'printableversion' ) . '</a>';
 756                 if( $wgOut->isSyndicated() ) {
 757                         foreach( $wgFeedClasses as $format => $class ) {
 758                                 $feedurl = $wgRequest->escapeAppendQuery( "feed=$format" );
 759                                 $s .= " | <a href=\"$feedurl\">{$format}</a>";
 760                         }
 761                 }
 762                 return $s;
 763         }
 764
 765         function pageTitle() {
 766                 global $wgOut;
 767                 $s = '<h1 class="pagetitle">' . htmlspecialchars( $wgOut->getPageTitle() ) . '</h1>';
 768                 return $s;
 769         }
 770
 771         function pageSubtitle() {
 772                 global $wgOut;
 773
 774                 $sub = $wgOut->getSubtitle();
 775                 if ( '' == $sub ) {
 776                         global $wgExtraSubtitle;
 777                         $sub = wfMsg( 'tagline' ) . $wgExtraSubtitle;
 778                 }
 779                 $subpages = $this->subPageSubtitle();
 780                 $sub .= !empty($subpages)?"</p><p class='subpages'>$subpages":'';
 781                 $s = "<p class='subtitle'>{$sub}</p>\n";
 782                 return $s;
 783         }
 784
 785         function subPageSubtitle() {
 786                 global $wgOut,$wgTitle,$wgNamespacesWithSubpages;
 787                 $subpages = '';
 788                 if($wgOut->isArticle() && !empty($wgNamespacesWithSubpages[$wgTitle->getNamespace()])) {
 789                         $ptext=$wgTitle->getPrefixedText();
 790                         if(preg_match('/\//',$ptext)) {
 791                                 $links = explode('/',$ptext);
 792                                 $c = 0;
 793                                 $growinglink = '';
 794                                 foreach($links as $link) {
 795                                         $c++;
 796                                         if ($c<count($links)) {
 797                                                 $growinglink .= $link;
 798                                                 $getlink = $this->makeLink( $growinglink, htmlspecialchars( $link ) );
 799                                                 if(preg_match('/class="new"/i',$getlink)) { break; } # this is a hack, but it saves time
 800                                                 if ($c>1) {
 801                                                         $subpages .= ' | ';
 802                                                 } else  {
 803                                                         $subpages .= '&lt; ';
 804                                                 }
 805                                                 $subpages .= $getlink;
 806                                                 $growinglink .= '/';
 807                                         }
 808                                 }
 809                         }
 810                 }
 811                 return $subpages;
 812         }
 813
 814         function nameAndLogin() {
 815                 global $wgUser, $wgTitle, $wgLang, $wgContLang, $wgShowIPinHeader;
 816
 817                 $li = $wgContLang->specialPage( 'Userlogin' );
 818                 $lo = $wgContLang->specialPage( 'Userlogout' );
 819
 820                 $s = '';
 821                 if ( $wgUser->isAnon() ) {
 822                         if( $wgShowIPinHeader && isset( $_COOKIE[ini_get('session.name')] ) ) {
 823                                 $n = wfGetIP();
 824
 825                                 $tl = $this->makeKnownLinkObj( $wgUser->getTalkPage(),
 826                                   $wgLang->getNsText( NS_TALK ) );
 827
 828                                 $s .= $n . ' ('.$tl.')';
 829                         } else {
 830                                 $s .= wfMsg('notloggedin');
 831                         }
 832
 833                         $rt = $wgTitle->getPrefixedURL();
 834                         if ( 0 == strcasecmp( urlencode( $lo ), $rt ) ) {
 835                                 $q = '';
 836                         } else { $q = "returnto={$rt}"; }
 837
 838                         $s .= "\n<br />" . $this->makeKnownLinkObj(
 839                                 SpecialPage::getTitleFor( 'Userlogin' ),
 840                                 wfMsg( 'login' ), $q );
 841                 } else {
 842                         $n = $wgUser->getName();
 843                         $rt = $wgTitle->getPrefixedURL();
 844                         $tl = $this->makeKnownLinkObj( $wgUser->getTalkPage(),
 845                           $wgLang->getNsText( NS_TALK ) );
 846
 847                         $tl = " ({$tl})";
 848
 849                         $s .= $this->makeKnownLinkObj( $wgUser->getUserPage(),
 850                           $n ) . "{$tl}<br />" .
 851                           $this->makeKnownLinkObj( SpecialPage::getTitleFor( 'Userlogout' ), wfMsg( 'logout' ),
 852                           "returnto={$rt}" ) . ' | ' .
 853                           $this->specialLink( 'preferences' );
 854                 }
 855                 $s .= ' | ' . $this->makeKnownLink( wfMsgForContent( 'helppage' ),
 856                   wfMsg( 'help' ) );
 857
 858                 return $s;
 859         }
 860
 861         function getSearchLink() {
 862                 $searchPage =& SpecialPage::getTitleFor( 'Search' );
 863                 return $searchPage->getLocalURL();
 864         }
 865
 866         function escapeSearchLink() {
 867                 return htmlspecialchars( $this->getSearchLink() );
 868         }
 869
 870         function searchForm() {
 871                 global $wgRequest;
 872                 $search = $wgRequest->getText( 'search' );
 873
 874                 $s = '<form name="search" class="inline" method="post" action="'
 875                   . $this->escapeSearchLink() . "\">\n"
 876                   . '<input type="text" name="search" size="19" value="'
 877                   . htmlspecialchars(substr($search,0,256)) . "\" />\n"
 878                   . '<input type="submit" name="go" value="' . wfMsg ('searcharticle') . '" />&nbsp;'
 879                   . '<input type="submit" name="fulltext" value="' . wfMsg ('searchbutton') . "\" />\n</form>";
 880
 881                 return $s;
 882         }
 883
 884         function topLinks() {
 885                 global $wgOut;
 886                 $sep = " |\n";
 887
 888                 $s = $this->mainPageLink() . $sep
 889                   . $this->specialLink( 'recentchanges' );
 890
 891                 if ( $wgOut->isArticleRelated() ) {
 892                         $s .=  $sep . $this->editThisPage()
 893                           . $sep . $this->historyLink();
 894                 }
 895                 # Many people don't like this dropdown box
 896                 #$s .= $sep . $this->specialPagesList();
 897
 898                 $s .= $this->variantLinks();
 899
 900                 $s .= $this->extensionTabLinks();
 901
 902                 return $s;
 903         }
 904
 905         /**
 906          * Compatibility for extensions adding functionality through tabs.
 907          * Eventually these old skins should be replaced with SkinTemplate-based
 908          * versions, sigh...
 909          * @return string
 910          */
 911         function extensionTabLinks() {
 912                 $tabs = array();
 913                 $s = '';
 914                 wfRunHooks( 'SkinTemplateTabs', array( $this, &$tabs ) );
 915                 foreach( $tabs as $tab ) {
 916                         $s .= ' | ' . Xml::element( 'a',
 917                                 array( 'href' => $tab['href'] ),
 918                                 $tab['text'] );
 919                 }
 920                 return $s;
 921         }
 922
 923         /**
 924          * Language/charset variant links for classic-style skins
 925          * @return string
 926          */
 927         function variantLinks() {
 928                 $s = '';
 929                 /* show links to different language variants */
 930                 global $wgDisableLangConversion, $wgContLang, $wgTitle;
 931                 $variants = $wgContLang->getVariants();
 932                 if( !$wgDisableLangConversion && sizeof( $variants ) > 1 ) {
 933                         foreach( $variants as $code ) {
 934                                 $varname = $wgContLang->getVariantname( $code );
 935                                 if( $varname == 'disable' )
 936                                         continue;
 937                                 $s .= ' | <a href="' . $wgTitle->escapeLocalUrl( 'variant=' . $code ) . '">' . htmlspecialchars( $varname ) . '</a>';
 938                         }
 939                 }
 940                 return $s;
 941         }
 942
 943         function bottomLinks() {
 944                 global $wgOut, $wgUser, $wgTitle, $wgUseTrackbacks;
 945                 $sep = " |\n";
 946
 947                 $s = '';
 948                 if ( $wgOut->isArticleRelated() ) {
 949                         $s .= '<strong>' . $this->editThisPage() . '</strong>';
 950                         if ( $wgUser->isLoggedIn() ) {
 951                                 $s .= $sep . $this->watchThisPage();
 952                         }
 953                         $s .= $sep . $this->talkLink()
 954                           . $sep . $this->historyLink()
 955                           . $sep . $this->whatLinksHere()
 956                           . $sep . $this->watchPageLinksLink();
 957
 958                         if ($wgUseTrackbacks)
 959                                 $s .= $sep . $this->trackbackLink();
 960
 961                         if ( $wgTitle->getNamespace() == NS_USER
 962                             || $wgTitle->getNamespace() == NS_USER_TALK )
 963
 964                         {
 965                                 $id=User::idFromName($wgTitle->getText());
 966                                 $ip=User::isIP($wgTitle->getText());
 967
 968                                 if($id || $ip) { # both anons and non-anons have contri list
 969                                         $s .= $sep . $this->userContribsLink();
 970                                 }
 971                                 if( $this->showEmailUser( $id ) ) {
 972                                         $s .= $sep . $this->emailUserLink();
 973                                 }
 974                         }
 975                         if ( $wgTitle->getArticleId() ) {
 976                                 $s .= "\n<br />";
 977                                 if($wgUser->isAllowed('delete')) { $s .= $this->deleteThisPage(); }
 978                                 if($wgUser->isAllowed('protect')) { $s .= $sep . $this->protectThisPage(); }
 979                                 if($wgUser->isAllowed('move')) { $s .= $sep . $this->moveThisPage(); }
 980                         }
 981                         $s .= "<br />\n" . $this->otherLanguages();
 982                 }
 983                 return $s;
 984         }
 985
 986         function pageStats() {
 987                 global $wgOut, $wgLang, $wgArticle, $wgRequest, $wgUser;
 988                 global $wgDisableCounters, $wgMaxCredits, $wgShowCreditsIfMax, $wgTitle, $wgPageShowWatchingUsers;
 989
 990                 extract( $wgRequest->getValues( 'oldid', 'diff' ) );
 991                 if ( ! $wgOut->isArticle() ) { return ''; }
 992                 if ( isset( $oldid ) || isset( $diff ) ) { return ''; }
 993                 if ( 0 == $wgArticle->getID() ) { return ''; }
 994
 995                 $s = '';
 996                 if ( !$wgDisableCounters ) {
 997                         $count = $wgLang->formatNum( $wgArticle->getCount() );
 998                         if ( $count ) {
 999                                 $s = wfMsgExt( 'viewcount', array( 'parseinline' ), $count );
1000                         }
1001                 }
1002
1003                 if (isset($wgMaxCredits) && $wgMaxCredits != 0) {
1004                     require_once('Credits.php');
1005                     $s .= ' ' . getCredits($wgArticle, $wgMaxCredits, $wgShowCreditsIfMax);
1006                 } else {
1007                     $s .= $this->lastModified();
1008                 }
1009
1010                 if ($wgPageShowWatchingUsers && $wgUser->getOption( 'shownumberswatching' )) {
1011                         $dbr =& wfGetDB( DB_SLAVE );
1012                         extract( $dbr->tableNames( 'watchlist' ) );
1013                         $sql = "SELECT COUNT(*) AS n FROM $watchlist
1014                                 WHERE wl_title='" . $dbr->strencode($wgTitle->getDBKey()) .
1015                                 "' AND  wl_namespace=" . $wgTitle->getNamespace() ;
1016                         $res = $dbr->query( $sql, 'Skin::pageStats');
1017                         $x = $dbr->fetchObject( $res );
1018                         $s .= ' ' . wfMsg('number_of_watching_users_pageview', $x->n );
1019                 }
1020
1021                 return $s . ' ' .  $this->getCopyright();
1022         }
1023
1024         function getCopyright( $type = 'detect' ) {
1025                 global $wgRightsPage, $wgRightsUrl, $wgRightsText, $wgRequest;
1026
1027                 if ( $type == 'detect' ) {
1028                         $oldid = $wgRequest->getVal( 'oldid' );
1029                         $diff = $wgRequest->getVal( 'diff' );
1030
1031                         if ( !is_null( $oldid ) && is_null( $diff ) && wfMsgForContent( 'history_copyright' ) !== '-' ) {
1032                                 $type = 'history';
1033                         } else {
1034                                 $type = 'normal';
1035                         }
1036                 }
1037
1038                 if ( $type == 'history' ) {
1039                         $msg = 'history_copyright';
1040                 } else {
1041                         $msg = 'copyright';
1042                 }
1043
1044                 $out = '';
1045                 if( $wgRightsPage ) {
1046                         $link = $this->makeKnownLink( $wgRightsPage, $wgRightsText );
1047                 } elseif( $wgRightsUrl ) {
1048                         $link = $this->makeExternalLink( $wgRightsUrl, $wgRightsText );
1049                 } else {
1050                         # Give up now
1051                         return $out;
1052                 }
1053                 $out .= wfMsgForContent( $msg, $link );
1054                 return $out;
1055         }
1056
1057         function getCopyrightIcon() {
1058                 global $wgRightsUrl, $wgRightsText, $wgRightsIcon, $wgCopyrightIcon;
1059                 $out = '';
1060                 if ( isset( $wgCopyrightIcon ) && $wgCopyrightIcon ) {
1061                         $out = $wgCopyrightIcon;
1062                 } else if ( $wgRightsIcon ) {
1063                         $icon = htmlspecialchars( $wgRightsIcon );
1064                         if ( $wgRightsUrl ) {
1065                                 $url = htmlspecialchars( $wgRightsUrl );
1066                                 $out .= '<a href="'.$url.'">';
1067                         }
1068                         $text = htmlspecialchars( $wgRightsText );
1069                         $out .= "<img src=\"$icon\" alt='$text' />";
1070                         if ( $wgRightsUrl ) {
1071                                 $out .= '</a>';
1072                         }
1073                 }
1074                 return $out;
1075         }
1076
1077         function getPoweredBy() {
1078                 global $wgStylePath;
1079                 $url = htmlspecialchars( "$wgStylePath/common/images/poweredby_mediawiki_88x31.png" );
1080                 $img = '<a href="http://www.mediawiki.org/"><img src="'.$url.'" alt="MediaWiki" /></a>';
1081                 return $img;
1082         }
1083
1084         function lastModified() {
1085                 global $wgLang, $wgArticle, $wgLoadBalancer;
1086
1087                 $timestamp = $wgArticle->getTimestamp();
1088                 if ( $timestamp ) {
1089                         $d = $wgLang->date( $timestamp, true );
1090                         $t = $wgLang->time( $timestamp, true );
1091                         $s = ' ' . wfMsg( 'lastmodifiedat', $d, $t );
1092                 } else {
1093                         $s = '';
1094                 }
1095                 if ( $wgLoadBalancer->getLaggedSlaveMode() ) {
1096                         $s .= ' <strong>' . wfMsg( 'laggedslavemode' ) . '</strong>';
1097                 }
1098                 return $s;
1099         }
1100
1101         function logoText( $align = '' ) {
1102                 if ( '' != $align ) { $a = " align='{$align}'"; }
1103                 else { $a = ''; }
1104
1105                 $mp = wfMsg( 'mainpage' );
1106                 $titleObj = Title::newFromText( $mp );
1107                 if ( is_object( $titleObj ) ) {
1108                         $url = $titleObj->escapeLocalURL();
1109                 } else {
1110                         $url = '';
1111                 }
1112
1113                 $logourl = $this->getLogo();
1114                 $s = "<a href='{$url}'><img{$a} src='{$logourl}' alt='[{$mp}]' /></a>";
1115                 return $s;
1116         }
1117
1118         /**
1119          * show a drop-down box of special pages
1120          */
1121         function specialPagesList() {
1122                 global $wgUser, $wgContLang, $wgServer, $wgRedirectScript;
1123                 $a = array();
1124                 $pages = array_merge( SpecialPage::getRegularPages(), SpecialPage::getRestrictedPages() );
1125                 foreach ( $pages as $name => $page ) {
1126                         $pages[$name] = $page->getDescription();
1127                 }
1128
1129                 $go = wfMsg( 'go' );
1130                 $sp = wfMsg( 'specialpages' );
1131                 $spp = $wgContLang->specialPage( 'Specialpages' );
1132
1133                 $s = '<form id="specialpages" method="get" class="inline" ' .
1134                   'action="' . htmlspecialchars( "{$wgServer}{$wgRedirectScript}" ) . "\">\n";
1135                 $s .= "<select name=\"wpDropdown\">\n";
1136                 $s .= "<option value=\"{$spp}\">{$sp}</option>\n";
1137
1138
1139                 foreach ( $pages as $name => $desc ) {
1140                         $p = $wgContLang->specialPage( $name );
1141                         $s .= "<option value=\"{$p}\">{$desc}</option>\n";
1142                 }
1143                 $s .= "</select>\n";
1144                 $s .= "<input type='submit' value=\"{$go}\" name='redirect' />\n";
1145                 $s .= "</form>\n";
1146                 return $s;
1147         }
1148
1149         function mainPageLink() {
1150                 $mp = wfMsgForContent( 'mainpage' );
1151                 $mptxt = wfMsg( 'mainpage');
1152                 $s = $this->makeKnownLink( $mp, $mptxt );
1153                 return $s;
1154         }
1155
1156         function copyrightLink() {
1157                 $s = $this->makeKnownLink( wfMsgForContent( 'copyrightpage' ),
1158                   wfMsg( 'copyrightpagename' ) );
1159                 return $s;
1160         }
1161
1162         function privacyLink() {
1163                 $privacy = wfMsg( 'privacy' );
1164                 if ($privacy == '-') {
1165                         return '';
1166                 } else {
1167                         return $this->makeKnownLink( wfMsgForContent( 'privacypage' ), $privacy);
1168                 }
1169         }
1170
1171         function aboutLink() {
1172                 $s = $this->makeKnownLink( wfMsgForContent( 'aboutpage' ),
1173                   wfMsg( 'aboutsite' ) );
1174                 return $s;
1175         }
1176
1177         function disclaimerLink() {
1178                 $disclaimers = wfMsg( 'disclaimers' );
1179                 if ($disclaimers == '-') {
1180                         return '';
1181                 } else {
1182                         return $this->makeKnownLink( wfMsgForContent( 'disclaimerpage' ),
1183                                                      $disclaimers );
1184                 }
1185         }
1186
1187         function editThisPage() {
1188                 global $wgOut, $wgTitle;
1189
1190                 if ( ! $wgOut->isArticleRelated() ) {
1191                         $s = wfMsg( 'protectedpage' );
1192                 } else {
1193                         if ( $wgTitle->userCanEdit() ) {
1194                                 $t = wfMsg( 'editthispage' );
1195                         } else {
1196                                 $t = wfMsg( 'viewsource' );
1197                         }
1198
1199                         $s = $this->makeKnownLinkObj( $wgTitle, $t, $this->editUrlOptions() );
1200                 }
1201                 return $s;
1202         }
1203
1204         /**
1205          * Return URL options for the 'edit page' link.
1206          * This may include an 'oldid' specifier, if the current page view is such.
1207          *
1208          * @return string
1209          * @private
1210          */
1211         function editUrlOptions() {
1212                 global $wgArticle;
1213
1214                 if( $this->mRevisionId && ! $wgArticle->isCurrent() ) {
1215                         return "action=edit&oldid=" . intval( $this->mRevisionId );
1216                 } else {
1217                         return "action=edit";
1218                 }
1219         }
1220
1221         function deleteThisPage() {
1222                 global $wgUser, $wgTitle, $wgRequest;
1223
1224                 $diff = $wgRequest->getVal( 'diff' );
1225                 if ( $wgTitle->getArticleId() && ( ! $diff ) && $wgUser->isAllowed('delete') ) {
1226                         $t = wfMsg( 'deletethispage' );
1227
1228                         $s = $this->makeKnownLinkObj( $wgTitle, $t, 'action=delete' );
1229                 } else {
1230                         $s = '';
1231                 }
1232                 return $s;
1233         }
1234
1235         function protectThisPage() {
1236                 global $wgUser, $wgTitle, $wgRequest;
1237
1238                 $diff = $wgRequest->getVal( 'diff' );
1239                 if ( $wgTitle->getArticleId() && ( ! $diff ) && $wgUser->isAllowed('protect') ) {
1240                         if ( $wgTitle->isProtected() ) {
1241                                 $t = wfMsg( 'unprotectthispage' );
1242                                 $q = 'action=unprotect';
1243                         } else {
1244                                 $t = wfMsg( 'protectthispage' );
1245                                 $q = 'action=protect';
1246                         }
1247                         $s = $this->makeKnownLinkObj( $wgTitle, $t, $q );
1248                 } else {
1249                         $s = '';
1250                 }
1251                 return $s;
1252         }
1253
1254         function watchThisPage() {
1255                 global $wgOut, $wgTitle;
1256
1257                 if ( $wgOut->isArticleRelated() ) {
1258                         if ( $wgTitle->userIsWatching() ) {
1259                                 $t = wfMsg( 'unwatchthispage' );
1260                                 $q = 'action=unwatch';
1261                         } else {
1262                                 $t = wfMsg( 'watchthispage' );
1263                                 $q = 'action=watch';
1264                         }
1265                         $s = $this->makeKnownLinkObj( $wgTitle, $t, $q );
1266                 } else {
1267                         $s = wfMsg( 'notanarticle' );
1268                 }
1269                 return $s;
1270         }
1271
1272         function moveThisPage() {
1273                 global $wgTitle;
1274
1275                 if ( $wgTitle->userCanMove() ) {
1276                         return $this->makeKnownLinkObj( SpecialPage::getTitleFor( 'Movepage' ),
1277                           wfMsg( 'movethispage' ), 'target=' . $wgTitle->getPrefixedURL() );
1278                 } else {
1279                         // no message if page is protected - would be redundant
1280                         return '';
1281                 }
1282         }
1283
1284         function historyLink() {
1285                 global $wgTitle;
1286
1287                 return $this->makeKnownLinkObj( $wgTitle,
1288                   wfMsg( 'history' ), 'action=history' );
1289         }
1290
1291         function whatLinksHere() {
1292                 global $wgTitle;
1293
1294                 return $this->makeKnownLinkObj(
1295                         SpecialPage::getTitleFor( 'Whatlinkshere', $wgTitle->getPrefixedDBkey() ),
1296                         wfMsg( 'whatlinkshere' ) );
1297         }
1298
1299         function userContribsLink() {
1300                 global $wgTitle;
1301
1302                 return $this->makeKnownLinkObj(
1303                         SpecialPage::getTitleFor( 'Contributions', $wgTitle->getDBkey() ),
1304                         wfMsg( 'contributions' ) );
1305         }
1306
1307         function showEmailUser( $id ) {
1308                 global $wgEnableEmail, $wgEnableUserEmail, $wgUser;
1309                 return $wgEnableEmail &&
1310                        $wgEnableUserEmail &&
1311                        $wgUser->isLoggedIn() && # show only to signed in users
1312                        0 != $id; # we can only email to non-anons ..
1313 #                      '' != $id->getEmail() && # who must have an email address stored ..
1314 #                      0 != $id->getEmailauthenticationtimestamp() && # .. which is authenticated
1315 #                      1 != $wgUser->getOption('disablemail'); # and not disabled
1316         }
1317
1318         function emailUserLink() {
1319                 global $wgTitle;
1320
1321                 return $this->makeKnownLinkObj(
1322                         SpecialPage::getTitleFor( 'Emailuser', $wgTitle->getDBkey() ),
1323                         wfMsg( 'emailuser' ) );
1324         }
1325
1326         function watchPageLinksLink() {
1327                 global $wgOut, $wgTitle;
1328
1329                 if ( ! $wgOut->isArticleRelated() ) {
1330                         return '(' . wfMsg( 'notanarticle' ) . ')';
1331                 } else {
1332                         return $this->makeKnownLinkObj(
1333                                 SpecialPage::getTitleFor( 'Recentchangeslinked', $wgTitle->getPrefixedDBkey() ),
1334                                 wfMsg( 'recentchangeslinked' ) );
1335                 }
1336         }
1337
1338         function trackbackLink() {
1339                 global $wgTitle;
1340
1341                 return "<a href=\"" . $wgTitle->trackbackURL() . "\">"
1342                         . wfMsg('trackbacklink') . "</a>";
1343         }
1344
1345         function otherLanguages() {
1346                 global $wgOut, $wgContLang, $wgHideInterlanguageLinks;
1347
1348                 if ( $wgHideInterlanguageLinks ) {
1349                         return '';
1350                 }
1351
1352                 $a = $wgOut->getLanguageLinks();
1353                 if ( 0 == count( $a ) ) {
1354                         return '';
1355                 }
1356
1357                 $s = wfMsg( 'otherlanguages' ) . ': ';
1358                 $first = true;
1359                 if($wgContLang->isRTL()) $s .= '<span dir="LTR">';
1360                 foreach( $a as $l ) {
1361                         if ( ! $first ) { $s .= ' | '; }
1362                         $first = false;
1363
1364                         $nt = Title::newFromText( $l );
1365                         $url = $nt->escapeFullURL();
1366                         $text = $wgContLang->getLanguageName( $nt->getInterwiki() );
1367
1368                         if ( '' == $text ) { $text = $l; }
1369                         $style = $this->getExternalLinkAttributes( $l, $text );
1370                         $s .= "<a href=\"{$url}\"{$style}>{$text}</a>";
1371                 }
1372                 if($wgContLang->isRTL()) $s .= '</span>';
1373                 return $s;
1374         }
1375
1376         function bugReportsLink() {
1377                 $s = $this->makeKnownLink( wfMsgForContent( 'bugreportspage' ),
1378                   wfMsg( 'bugreports' ) );
1379                 return $s;
1380         }
1381
1382         function dateLink() {
1383                 $t1 = Title::newFromText( gmdate( 'F j' ) );
1384                 $t2 = Title::newFromText( gmdate( 'Y' ) );
1385
1386                 $id = $t1->getArticleID();
1387
1388                 if ( 0 == $id ) {
1389                         $s = $this->makeBrokenLink( $t1->getText() );
1390                 } else {
1391                         $s = $this->makeKnownLink( $t1->getText() );
1392                 }
1393                 $s .= ', ';
1394
1395                 $id = $t2->getArticleID();
1396
1397                 if ( 0 == $id ) {
1398                         $s .= $this->makeBrokenLink( $t2->getText() );
1399                 } else {
1400                         $s .= $this->makeKnownLink( $t2->getText() );
1401                 }
1402                 return $s;
1403         }
1404
1405         function talkLink() {
1406                 global $wgTitle;
1407
1408                 if ( NS_SPECIAL == $wgTitle->getNamespace() ) {
1409                         # No discussion links for special pages
1410                         return '';
1411                 }
1412
1413                 if( $wgTitle->isTalkPage() ) {
1414                         $link = $wgTitle->getSubjectPage();
1415                         switch( $link->getNamespace() ) {
1416                                 case NS_MAIN:
1417                                         $text = wfMsg( 'articlepage' );
1418                                         break;
1419                                 case NS_USER:
1420                                         $text = wfMsg( 'userpage' );
1421                                         break;
1422                                 case NS_PROJECT:
1423                                         $text = wfMsg( 'projectpage' );
1424                                         break;
1425                                 case NS_IMAGE:
1426                                         $text = wfMsg( 'imagepage' );
1427                                         break;
1428                                 case NS_MEDIAWIKI:
1429                                         $text = wfMsg( 'mediawikipage' );
1430                                         break;
1431                                 case NS_TEMPLATE:
1432                                         $text = wfMsg( 'templatepage' );
1433                                         break;
1434                                 case NS_HELP:
1435                                         $text = wfMsg( 'viewhelppage' );
1436                                         break;
1437                                 case NS_CATEGORY:
1438                                         $text = wfMsg( 'categorypage' );
1439                                         break;
1440                                 default:
1441                                         $text = wfMsg( 'articlepage' );
1442                         }
1443                 } else {
1444                         $link = $wgTitle->getTalkPage();
1445                         $text = wfMsg( 'talkpage' );
1446                 }
1447
1448                 $s = $this->makeLinkObj( $link, $text );
1449
1450                 return $s;
1451         }
1452
1453         function commentLink() {
1454                 global $wgTitle, $wgOut;
1455
1456                 if ( $wgTitle->getNamespace() == NS_SPECIAL ) {
1457                         return '';
1458                 }
1459
1460                 # __NEWSECTIONLINK___ changes behaviour here
1461                 # If it's present, the link points to this page, otherwise
1462                 # it points to the talk page
1463                 if( $wgTitle->isTalkPage() ) {
1464                         $title =& $wgTitle;
1465                 } elseif( $wgOut->showNewSectionLink() ) {
1466                         $title =& $wgTitle;
1467                 } else {
1468                         $title =& $wgTitle->getTalkPage();
1469                 }
1470
1471                 return $this->makeKnownLinkObj( $title, wfMsg( 'postcomment' ), 'action=edit&section=new' );
1472         }
1473
1474         /* these are used extensively in SkinTemplate, but also some other places */
1475         static function makeSpecialUrl( $name, $urlaction = '' ) {
1476                 $title = SpecialPage::getTitleFor( $name );
1477                 return $title->getLocalURL( $urlaction );
1478         }
1479
1480         static function makeI18nUrl( $name, $urlaction = '' ) {
1481                 $title = Title::newFromText( wfMsgForContent( $name ) );
1482                 self::checkTitle( $title, $name );
1483                 return $title->getLocalURL( $urlaction );
1484         }
1485
1486         static function makeUrl( $name, $urlaction = '' ) {
1487                 $title = Title::newFromText( $name );
1488                 self::checkTitle( $title, $name );
1489                 return $title->getLocalURL( $urlaction );
1490         }
1491
1492         # If url string starts with http, consider as external URL, else
1493         # internal
1494         static function makeInternalOrExternalUrl( $name ) {
1495                 if ( preg_match( '/^(?:' . wfUrlProtocols() . ')/', $name ) ) {
1496                         return $name;
1497                 } else {
1498                         return self::makeUrl( $name );
1499                 }
1500         }
1501
1502         # this can be passed the NS number as defined in Language.php
1503         static function makeNSUrl( $name, $urlaction = '', $namespace = NS_MAIN ) {
1504                 $title = Title::makeTitleSafe( $namespace, $name );
1505                 self::checkTitle( $title, $name );
1506                 return $title->getLocalURL( $urlaction );
1507         }
1508
1509         /* these return an array with the 'href' and boolean 'exists' */
1510         static function makeUrlDetails( $name, $urlaction = '' ) {
1511                 $title = Title::newFromText( $name );
1512                 self::checkTitle( $title, $name );
1513                 return array(
1514                         'href' => $title->getLocalURL( $urlaction ),
1515                         'exists' => $title->getArticleID() != 0 ? true : false
1516                 );
1517         }
1518
1519         /**
1520          * Make URL details where the article exists (or at least it's convenient to think so)
1521          */
1522         static function makeKnownUrlDetails( $name, $urlaction = '' ) {
1523                 $title = Title::newFromText( $name );
1524                 self::checkTitle( $title, $name );
1525                 return array(
1526                         'href' => $title->getLocalURL( $urlaction ),
1527                         'exists' => true
1528                 );
1529         }
1530
1531         # make sure we have some title to operate on
1532         static function checkTitle( &$title, &$name ) {
1533                 if( !is_object( $title ) ) {
1534                         $title = Title::newFromText( $name );
1535                         if( !is_object( $title ) ) {
1536                                 $title = Title::newFromText( '--error: link target missing--' );
1537                         }
1538                 }
1539         }
1540
1541         /**
1542          * Build an array that represents the sidebar(s), the navigation bar among them
1543          *
1544          * @return array
1545          * @private
1546          */
1547         function buildSidebar() {
1548                 global $parserMemc, $wgEnableSidebarCache;
1549                 global $wgLang, $wgContLang;
1550
1551                 $fname = 'SkinTemplate::buildSidebar';
1552
1553                 wfProfileIn( $fname );
1554
1555                 $key = wfMemcKey( 'sidebar' );
1556                 $cacheSidebar = $wgEnableSidebarCache &&
1557                         ($wgLang->getCode() == $wgContLang->getCode());
1558
1559                 if ($cacheSidebar) {
1560                         $cachedsidebar = $parserMemc->get( $key );
1561                         if ($cachedsidebar!="") {
1562                                 wfProfileOut($fname);
1563                                 return $cachedsidebar;
1564                         }
1565                 }
1566
1567                 $bar = array();
1568                 $lines = explode( "\n", wfMsgForContent( 'sidebar' ) );
1569                 foreach ($lines as $line) {
1570                         if (strpos($line, '*') !== 0)
1571                                 continue;
1572                         if (strpos($line, '**') !== 0) {
1573                                 $line = trim($line, '* ');
1574                                 $heading = $line;
1575                         } else {
1576                                 if (strpos($line, '|') !== false) { // sanity check
1577                                         $line = explode( '|' , trim($line, '* '), 2 );
1578                                         $link = wfMsgForContent( $line[0] );
1579                                         if ($link == '-')
1580                                                 continue;
1581                                         if (wfEmptyMsg($line[1], $text = wfMsg($line[1])))
1582                                                 $text = $line[1];
1583                                         if (wfEmptyMsg($line[0], $link))
1584                                                 $link = $line[0];
1585
1586                                         if ( preg_match( '/^(?:' . wfUrlProtocols() . ')/', $link ) ) {
1587                                                 $href = $link;
1588                                         } else {
1589                                                 $title = Title::newFromText( $link );
1590                                                 $title = $title->fixSpecialName();
1591                                                 $href = $title->getLocalURL();
1592                                         }
1593
1594                                         $bar[$heading][] = array(
1595                                                 'text' => $text,
1596                                                 'href' => $href,
1597                                                 'id' => 'n-' . strtr($line[1], ' ', '-'),
1598                                                 'active' => false
1599                                         );
1600                                 } else { continue; }
1601                         }
1602                 }
1603                 if ($cacheSidebar)
1604                         $cachednotice = $parserMemc->set( $key, $bar, 86400 );
1605                 wfProfileOut( $fname );
1606                 return $bar;
1607         }
1608 }
1609 ?>