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 = self::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 = self::normalizeKey( $key );
 114
 115                 $skinNames = self::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 = self::makeLinkObj( Title::newFromText( wfMsgForContent('pagecategorieslink') ), $msg )
 583                         . ': ' . $t;
 584
 585                 # optional 'dmoz-like' category browser. Will be shown under the list
 586                 # of categories an article belong to
 587                 if($wgUseCategoryBrowser) {
 588                         $s .= '<br /><hr />';
 589
 590                         # get a big array of the parents tree
 591                         $parenttree = $wgTitle->getParentCategoryTree();
 592                         # Skin object passed by reference cause it can not be
 593                         # accessed under the method subfunction drawCategoryBrowser
 594                         $tempout = explode("\n", self::drawCategoryBrowser($parenttree, $this) );
 595                         # Clean out bogus first entry and sort them
 596                         unset($tempout[0]);
 597                         asort($tempout);
 598                         # Output one per line
 599                         $s .= implode("<br />\n", $tempout);
 600                 }
 601
 602                 return $s;
 603         }
 604
 605         /**
 606          * Render the array as a series of links.
 607          * @param $tree Array categories tree returned by Title::getParentCategoryTree
 608          * @param &skin Object skin passed by reference
 609          * @return String separated by &gt;, terminate with "\n"
 610          * @static
 611          */
 612         static function drawCategoryBrowser($tree, &$skin) {
 613                 $return = '';
 614                 foreach ($tree as $element => $parent) {
 615                         if (empty($parent)) {
 616                                 # element start a new list
 617                                 $return .= "\n";
 618                         } else {
 619                                 # grab the others elements
 620                                 $return .= self::drawCategoryBrowser($parent, $skin) . ' &gt; ';
 621                         }
 622                         # add our current element to the list
 623                         $eltitle = Title::NewFromText($element);
 624                         $return .= self::makeLinkObj( $eltitle, $eltitle->getText() ) ;
 625                 }
 626                 return $return;
 627         }
 628
 629         function getCategories() {
 630                 $catlinks=$this->getCategoryLinks();
 631                 if(!empty($catlinks)) {
 632                         return "<p class='catlinks'>{$catlinks}</p>";
 633                 }
 634         }
 635
 636         function getQuickbarCompensator( $rows = 1 ) {
 637                 return "<td width='152' rowspan='{$rows}'>&nbsp;</td>";
 638         }
 639
 640         /**
 641          * This gets called shortly before the \</body\> tag.
 642          * @return String HTML to be put before \</body\>
 643          */
 644         function afterContent() {
 645                 $printfooter = "<div class=\"printfooter\">\n" . $this->printFooter() . "</div>\n";
 646                 return $printfooter . $this->doAfterContent();
 647         }
 648
 649         /**
 650          * This gets called shortly before the \</body\> tag.
 651          * @return String HTML-wrapped JS code to be put before \</body\>
 652          */
 653         function bottomScripts() {
 654                 global $wgJsMimeType;
 655                 return "\n\t\t<script type=\"$wgJsMimeType\">if (window.runOnloadHook) runOnloadHook();</script>\n";
 656         }
 657
 658         /** @return string Retrievied from HTML text */
 659         function printSource() {
 660                 global $wgTitle;
 661                 $url = htmlspecialchars( $wgTitle->getFullURL() );
 662                 return wfMsg( 'retrievedfrom', '<a href="'.$url.'">'.$url.'</a>' );
 663         }
 664
 665         function printFooter() {
 666                 return "<p>" .  $this->printSource() .
 667                         "</p>\n\n<p>" . $this->pageStats() . "</p>\n";
 668         }
 669
 670         /** overloaded by derived classes */
 671         function doAfterContent() { }
 672
 673         function pageTitleLinks() {
 674                 global $wgOut, $wgTitle, $wgUser, $wgRequest;
 675
 676                 extract( $wgRequest->getValues( 'oldid', 'diff' ) );
 677                 $action = $wgRequest->getText( 'action' );
 678
 679                 $s = $this->printableLink();
 680                 $disclaimer = $this->disclaimerLink(); # may be empty
 681                 if( $disclaimer ) {
 682                         $s .= ' | ' . $disclaimer;
 683                 }
 684                 $privacy = $this->privacyLink(); # may be empty too
 685                 if( $privacy ) {
 686                         $s .= ' | ' . $privacy;
 687                 }
 688
 689                 if ( $wgOut->isArticleRelated() ) {
 690                         if ( $wgTitle->getNamespace() == NS_IMAGE ) {
 691                                 $name = $wgTitle->getDBkey();
 692                                 $image = new Image( $wgTitle );
 693                                 if( $image->exists() ) {
 694                                         $link = htmlspecialchars( $image->getURL() );
 695                                         $style = self::getInternalLinkAttributes( $link, $name );
 696                                         $s .= " | <a href=\"{$link}\"{$style}>{$name}</a>";
 697                                 }
 698                         }
 699                 }
 700                 if ( 'history' == $action || isset( $diff ) || isset( $oldid ) ) {
 701                         $s .= ' | ' . self::makeKnownLinkObj( $wgTitle,
 702                                         wfMsg( 'currentrev' ) );
 703                 }
 704
 705                 if ( $wgUser->getNewtalk() ) {
 706                         # do not show "You have new messages" text when we are viewing our
 707                         # own talk page
 708                         if( !$wgTitle->equals( $wgUser->getTalkPage() ) ) {
 709                                 $tl = self::makeKnownLinkObj( $wgUser->getTalkPage(), wfMsgHtml( 'newmessageslink' ), 'redirect=no' );
 710                                 $dl = self::makeKnownLinkObj( $wgUser->getTalkPage(), wfMsgHtml( 'newmessagesdifflink' ), 'diff=cur' );
 711                                 $s.= ' | <strong>'. wfMsg( 'youhavenewmessages', $tl, $dl ) . '</strong>';
 712                                 # disable caching
 713                                 $wgOut->setSquidMaxage(0);
 714                                 $wgOut->enableClientCache(false);
 715                         }
 716                 }
 717
 718                 $undelete = $this->getUndeleteLink();
 719                 if( !empty( $undelete ) ) {
 720                         $s .= ' | '.$undelete;
 721                 }
 722                 return $s;
 723         }
 724
 725         function getUndeleteLink() {
 726                 global $wgUser, $wgTitle, $wgContLang, $action;
 727                 if(     $wgUser->isAllowed( 'deletedhistory' ) &&
 728                         (($wgTitle->getArticleId() == 0) || ($action == "history")) &&
 729                         ($n = $wgTitle->isDeleted() ) )
 730                 {
 731                         if ( $wgUser->isAllowed( 'delete' ) ) {
 732                                 $msg = 'thisisdeleted';
 733                         } else {
 734                                 $msg = 'viewdeleted';
 735                         }
 736                         return wfMsg( $msg,
 737                                 self::makeKnownLink(
 738                                         $wgContLang->SpecialPage( 'Undelete/' . $wgTitle->getPrefixedDBkey() ),
 739                                         wfMsgExt( 'restorelink', array( 'parsemag', 'escape' ), $n ) ) );
 740                 }
 741                 return '';
 742         }
 743
 744         function printableLink() {
 745                 global $wgOut, $wgFeedClasses, $wgRequest;
 746
 747                 $baseurl = $_SERVER['REQUEST_URI'];
 748                 if( strpos( '?', $baseurl ) == false ) {
 749                         $baseurl .= '?';
 750                 } else {
 751                         $baseurl .= '&';
 752                 }
 753                 $baseurl = htmlspecialchars( $baseurl );
 754                 $printurl = $wgRequest->escapeAppendQuery( 'printable=yes' );
 755
 756                 $s = "<a href=\"$printurl\">" . wfMsg( 'printableversion' ) . '</a>';
 757                 if( $wgOut->isSyndicated() ) {
 758                         foreach( $wgFeedClasses as $format => $class ) {
 759                                 $feedurl = $wgRequest->escapeAppendQuery( "feed=$format" );
 760                                 $s .= " | <a href=\"$feedurl\">{$format}</a>";
 761                         }
 762                 }
 763                 return $s;
 764         }
 765
 766         function pageTitle() {
 767                 global $wgOut;
 768                 $s = '<h1 class="pagetitle">' . htmlspecialchars( $wgOut->getPageTitle() ) . '</h1>';
 769                 return $s;
 770         }
 771
 772         function pageSubtitle() {
 773                 global $wgOut;
 774
 775                 $sub = $wgOut->getSubtitle();
 776                 if ( '' == $sub ) {
 777                         global $wgExtraSubtitle;
 778                         $sub = wfMsg( 'tagline' ) . $wgExtraSubtitle;
 779                 }
 780                 $subpages = $this->subPageSubtitle();
 781                 $sub .= !empty($subpages)?"</p><p class='subpages'>$subpages":'';
 782                 $s = "<p class='subtitle'>{$sub}</p>\n";
 783                 return $s;
 784         }
 785
 786         function subPageSubtitle() {
 787                 global $wgOut,$wgTitle,$wgNamespacesWithSubpages;
 788                 $subpages = '';
 789                 if($wgOut->isArticle() && !empty($wgNamespacesWithSubpages[$wgTitle->getNamespace()])) {
 790                         $ptext=$wgTitle->getPrefixedText();
 791                         if(preg_match('/\//',$ptext)) {
 792                                 $links = explode('/',$ptext);
 793                                 $c = 0;
 794                                 $growinglink = '';
 795                                 foreach($links as $link) {
 796                                         $c++;
 797                                         if ($c<count($links)) {
 798                                                 $growinglink .= $link;
 799                                                 $getlink = self::makeLink( $growinglink, htmlspecialchars( $link ) );
 800                                                 if(preg_match('/class="new"/i',$getlink)) { break; } # this is a hack, but it saves time
 801                                                 if ($c>1) {
 802                                                         $subpages .= ' | ';
 803                                                 } else  {
 804                                                         $subpages .= '&lt; ';
 805                                                 }
 806                                                 $subpages .= $getlink;
 807                                                 $growinglink .= '/';
 808                                         }
 809                                 }
 810                         }
 811                 }
 812                 return $subpages;
 813         }
 814
 815         function nameAndLogin() {
 816                 global $wgUser, $wgTitle, $wgLang, $wgContLang, $wgShowIPinHeader;
 817
 818                 $li = $wgContLang->specialPage( 'Userlogin' );
 819                 $lo = $wgContLang->specialPage( 'Userlogout' );
 820
 821                 $s = '';
 822                 if ( $wgUser->isAnon() ) {
 823                         if( $wgShowIPinHeader && isset( $_COOKIE[ini_get('session.name')] ) ) {
 824                                 $n = wfGetIP();
 825
 826                                 $tl = self::makeKnownLinkObj( $wgUser->getTalkPage(),
 827                                   $wgLang->getNsText( NS_TALK ) );
 828
 829                                 $s .= $n . ' ('.$tl.')';
 830                         } else {
 831                                 $s .= wfMsg('notloggedin');
 832                         }
 833
 834                         $rt = $wgTitle->getPrefixedURL();
 835                         if ( 0 == strcasecmp( urlencode( $lo ), $rt ) ) {
 836                                 $q = '';
 837                         } else { $q = "returnto={$rt}"; }
 838
 839                         $s .= "\n<br />" . self::makeKnownLinkObj(
 840                                 SpecialPage::getTitleFor( 'Userlogin' ),
 841                                 wfMsg( 'login' ), $q );
 842                 } else {
 843                         $n = $wgUser->getName();
 844                         $rt = $wgTitle->getPrefixedURL();
 845                         $tl = self::makeKnownLinkObj( $wgUser->getTalkPage(),
 846                           $wgLang->getNsText( NS_TALK ) );
 847
 848                         $tl = " ({$tl})";
 849
 850                         $s .= self::makeKnownLinkObj( $wgUser->getUserPage(),
 851                           $n ) . "{$tl}<br />" .
 852                           self::makeKnownLinkObj( SpecialPage::getTitleFor( 'Userlogout' ), wfMsg( 'logout' ),
 853                           "returnto={$rt}" ) . ' | ' .
 854                           self::specialLink( 'preferences' );
 855                 }
 856                 $s .= ' | ' . self::makeKnownLink( wfMsgForContent( 'helppage' ),
 857                   wfMsg( 'help' ) );
 858
 859                 return $s;
 860         }
 861
 862         function getSearchLink() {
 863                 $searchPage =& SpecialPage::getTitleFor( 'Search' );
 864                 return $searchPage->getLocalURL();
 865         }
 866
 867         function escapeSearchLink() {
 868                 return htmlspecialchars( $this->getSearchLink() );
 869         }
 870
 871         function searchForm() {
 872                 global $wgRequest;
 873                 $search = $wgRequest->getText( 'search' );
 874
 875                 $s = '<form name="search" class="inline" method="post" action="'
 876                   . $this->escapeSearchLink() . "\">\n"
 877                   . '<input type="text" name="search" size="19" value="'
 878                   . htmlspecialchars(substr($search,0,256)) . "\" />\n"
 879                   . '<input type="submit" name="go" value="' . wfMsg ('searcharticle') . '" />&nbsp;'
 880                   . '<input type="submit" name="fulltext" value="' . wfMsg ('searchbutton') . "\" />\n</form>";
 881
 882                 return $s;
 883         }
 884
 885         function topLinks() {
 886                 global $wgOut;
 887                 $sep = " |\n";
 888
 889                 $s = $this->mainPageLink() . $sep
 890                   . self::specialLink( 'recentchanges' );
 891
 892                 if ( $wgOut->isArticleRelated() ) {
 893                         $s .=  $sep . $this->editThisPage()
 894                           . $sep . $this->historyLink();
 895                 }
 896                 # Many people don't like this dropdown box
 897                 #$s .= $sep . $this->specialPagesList();
 898
 899                 $s .= $this->variantLinks();
 900
 901                 $s .= $this->extensionTabLinks();
 902
 903                 return $s;
 904         }
 905
 906         /**
 907          * Compatibility for extensions adding functionality through tabs.
 908          * Eventually these old skins should be replaced with SkinTemplate-based
 909          * versions, sigh...
 910          * @return string
 911          */
 912         function extensionTabLinks() {
 913                 $tabs = array();
 914                 $s = '';
 915                 wfRunHooks( 'SkinTemplateTabs', array( $this, &$tabs ) );
 916                 foreach( $tabs as $tab ) {
 917                         $s .= ' | ' . Xml::element( 'a',
 918                                 array( 'href' => $tab['href'] ),
 919                                 $tab['text'] );
 920                 }
 921                 return $s;
 922         }
 923
 924         /**
 925          * Language/charset variant links for classic-style skins
 926          * @return string
 927          */
 928         function variantLinks() {
 929                 $s = '';
 930                 /* show links to different language variants */
 931                 global $wgDisableLangConversion, $wgContLang, $wgTitle;
 932                 $variants = $wgContLang->getVariants();
 933                 if( !$wgDisableLangConversion && sizeof( $variants ) > 1 ) {
 934                         foreach( $variants as $code ) {
 935                                 $varname = $wgContLang->getVariantname( $code );
 936                                 if( $varname == 'disable' )
 937                                         continue;
 938                                 $s .= ' | <a href="' . $wgTitle->escapeLocalUrl( 'variant=' . $code ) . '">' . htmlspecialchars( $varname ) . '</a>';
 939                         }
 940                 }
 941                 return $s;
 942         }
 943
 944         function bottomLinks() {
 945                 global $wgOut, $wgUser, $wgTitle, $wgUseTrackbacks;
 946                 $sep = " |\n";
 947
 948                 $s = '';
 949                 if ( $wgOut->isArticleRelated() ) {
 950                         $s .= '<strong>' . $this->editThisPage() . '</strong>';
 951                         if ( $wgUser->isLoggedIn() ) {
 952                                 $s .= $sep . $this->watchThisPage();
 953                         }
 954                         $s .= $sep . $this->talkLink()
 955                           . $sep . $this->historyLink()
 956                           . $sep . $this->whatLinksHere()
 957                           . $sep . $this->watchPageLinksLink();
 958
 959                         if ($wgUseTrackbacks)
 960                                 $s .= $sep . $this->trackbackLink();
 961
 962                         if ( $wgTitle->getNamespace() == NS_USER
 963                             || $wgTitle->getNamespace() == NS_USER_TALK )
 964
 965                         {
 966                                 $id=User::idFromName($wgTitle->getText());
 967                                 $ip=User::isIP($wgTitle->getText());
 968
 969                                 if($id || $ip) { # both anons and non-anons have contri list
 970                                         $s .= $sep . $this->userContribsLink();
 971                                 }
 972                                 if( $this->showEmailUser( $id ) ) {
 973                                         $s .= $sep . $this->emailUserLink();
 974                                 }
 975                         }
 976                         if ( $wgTitle->getArticleId() ) {
 977                                 $s .= "\n<br />";
 978                                 if($wgUser->isAllowed('delete')) { $s .= $this->deleteThisPage(); }
 979                                 if($wgUser->isAllowed('protect')) { $s .= $sep . $this->protectThisPage(); }
 980                                 if($wgUser->isAllowed('move')) { $s .= $sep . $this->moveThisPage(); }
 981                         }
 982                         $s .= "<br />\n" . $this->otherLanguages();
 983                 }
 984                 return $s;
 985         }
 986
 987         function pageStats() {
 988                 global $wgOut, $wgLang, $wgArticle, $wgRequest, $wgUser;
 989                 global $wgDisableCounters, $wgMaxCredits, $wgShowCreditsIfMax, $wgTitle, $wgPageShowWatchingUsers;
 990
 991                 extract( $wgRequest->getValues( 'oldid', 'diff' ) );
 992                 if ( ! $wgOut->isArticle() ) { return ''; }
 993                 if ( isset( $oldid ) || isset( $diff ) ) { return ''; }
 994                 if ( 0 == $wgArticle->getID() ) { return ''; }
 995
 996                 $s = '';
 997                 if ( !$wgDisableCounters ) {
 998                         $count = $wgLang->formatNum( $wgArticle->getCount() );
 999                         if ( $count ) {
1000                                 $s = wfMsgExt( 'viewcount', array( 'parseinline' ), $count );
1001                         }
1002                 }
1003
1004                 if (isset($wgMaxCredits) && $wgMaxCredits != 0) {
1005                     require_once('Credits.php');
1006                     $s .= ' ' . getCredits($wgArticle, $wgMaxCredits, $wgShowCreditsIfMax);
1007                 } else {
1008                     $s .= $this->lastModified();
1009                 }
1010
1011                 if ($wgPageShowWatchingUsers && $wgUser->getOption( 'shownumberswatching' )) {
1012                         $dbr =& wfGetDB( DB_SLAVE );
1013                         extract( $dbr->tableNames( 'watchlist' ) );
1014                         $sql = "SELECT COUNT(*) AS n FROM $watchlist
1015                                 WHERE wl_title='" . $dbr->strencode($wgTitle->getDBKey()) .
1016                                 "' AND  wl_namespace=" . $wgTitle->getNamespace() ;
1017                         $res = $dbr->query( $sql, 'Skin::pageStats');
1018                         $x = $dbr->fetchObject( $res );
1019                         $s .= ' ' . wfMsg('number_of_watching_users_pageview', $x->n );
1020                 }
1021
1022                 return $s . ' ' .  $this->getCopyright();
1023         }
1024
1025         function getCopyright( $type = 'detect' ) {
1026                 global $wgRightsPage, $wgRightsUrl, $wgRightsText, $wgRequest;
1027
1028                 if ( $type == 'detect' ) {
1029                         $oldid = $wgRequest->getVal( 'oldid' );
1030                         $diff = $wgRequest->getVal( 'diff' );
1031
1032                         if ( !is_null( $oldid ) && is_null( $diff ) && wfMsgForContent( 'history_copyright' ) !== '-' ) {
1033                                 $type = 'history';
1034                         } else {
1035                                 $type = 'normal';
1036                         }
1037                 }
1038
1039                 if ( $type == 'history' ) {
1040                         $msg = 'history_copyright';
1041                 } else {
1042                         $msg = 'copyright';
1043                 }
1044
1045                 $out = '';
1046                 if( $wgRightsPage ) {
1047                         $link = self::makeKnownLink( $wgRightsPage, $wgRightsText );
1048                 } elseif( $wgRightsUrl ) {
1049                         $link = self::makeExternalLink( $wgRightsUrl, $wgRightsText );
1050                 } else {
1051                         # Give up now
1052                         return $out;
1053                 }
1054                 $out .= wfMsgForContent( $msg, $link );
1055                 return $out;
1056         }
1057
1058         function getCopyrightIcon() {
1059                 global $wgRightsUrl, $wgRightsText, $wgRightsIcon, $wgCopyrightIcon;
1060                 $out = '';
1061                 if ( isset( $wgCopyrightIcon ) && $wgCopyrightIcon ) {
1062                         $out = $wgCopyrightIcon;
1063                 } else if ( $wgRightsIcon ) {
1064                         $icon = htmlspecialchars( $wgRightsIcon );
1065                         if ( $wgRightsUrl ) {
1066                                 $url = htmlspecialchars( $wgRightsUrl );
1067                                 $out .= '<a href="'.$url.'">';
1068                         }
1069                         $text = htmlspecialchars( $wgRightsText );
1070                         $out .= "<img src=\"$icon\" alt='$text' />";
1071                         if ( $wgRightsUrl ) {
1072                                 $out .= '</a>';
1073                         }
1074                 }
1075                 return $out;
1076         }
1077
1078         function getPoweredBy() {
1079                 global $wgStylePath;
1080                 $url = htmlspecialchars( "$wgStylePath/common/images/poweredby_mediawiki_88x31.png" );
1081                 $img = '<a href="http://www.mediawiki.org/"><img src="'.$url.'" alt="MediaWiki" /></a>';
1082                 return $img;
1083         }
1084
1085         function lastModified() {
1086                 global $wgLang, $wgArticle, $wgLoadBalancer;
1087
1088                 $timestamp = $wgArticle->getTimestamp();
1089                 if ( $timestamp ) {
1090                         $d = $wgLang->date( $timestamp, true );
1091                         $t = $wgLang->time( $timestamp, true );
1092                         $s = ' ' . wfMsg( 'lastmodifiedat', $d, $t );
1093                 } else {
1094                         $s = '';
1095                 }
1096                 if ( $wgLoadBalancer->getLaggedSlaveMode() ) {
1097                         $s .= ' <strong>' . wfMsg( 'laggedslavemode' ) . '</strong>';
1098                 }
1099                 return $s;
1100         }
1101
1102         function logoText( $align = '' ) {
1103                 if ( '' != $align ) { $a = " align='{$align}'"; }
1104                 else { $a = ''; }
1105
1106                 $mp = wfMsg( 'mainpage' );
1107                 $titleObj = Title::newFromText( $mp );
1108                 if ( is_object( $titleObj ) ) {
1109                         $url = $titleObj->escapeLocalURL();
1110                 } else {
1111                         $url = '';
1112                 }
1113
1114                 $logourl = $this->getLogo();
1115                 $s = "<a href='{$url}'><img{$a} src='{$logourl}' alt='[{$mp}]' /></a>";
1116                 return $s;
1117         }
1118
1119         /**
1120          * show a drop-down box of special pages
1121          */
1122         function specialPagesList() {
1123                 global $wgUser, $wgContLang, $wgServer, $wgRedirectScript;
1124                 $a = array();
1125                 $pages = array_merge( SpecialPage::getRegularPages(), SpecialPage::getRestrictedPages() );
1126                 foreach ( $pages as $name => $page ) {
1127                         $pages[$name] = $page->getDescription();
1128                 }
1129
1130                 $go = wfMsg( 'go' );
1131                 $sp = wfMsg( 'specialpages' );
1132                 $spp = $wgContLang->specialPage( 'Specialpages' );
1133
1134                 $s = '<form id="specialpages" method="get" class="inline" ' .
1135                   'action="' . htmlspecialchars( "{$wgServer}{$wgRedirectScript}" ) . "\">\n";
1136                 $s .= "<select name=\"wpDropdown\">\n";
1137                 $s .= "<option value=\"{$spp}\">{$sp}</option>\n";
1138
1139
1140                 foreach ( $pages as $name => $desc ) {
1141                         $p = $wgContLang->specialPage( $name );
1142                         $s .= "<option value=\"{$p}\">{$desc}</option>\n";
1143                 }
1144                 $s .= "</select>\n";
1145                 $s .= "<input type='submit' value=\"{$go}\" name='redirect' />\n";
1146                 $s .= "</form>\n";
1147                 return $s;
1148         }
1149
1150         function mainPageLink() {
1151                 $mp = wfMsgForContent( 'mainpage' );
1152                 $mptxt = wfMsg( 'mainpage');
1153                 $s = self::makeKnownLink( $mp, $mptxt );
1154                 return $s;
1155         }
1156
1157         function copyrightLink() {
1158                 $s = self::makeKnownLink( wfMsgForContent( 'copyrightpage' ),
1159                   wfMsg( 'copyrightpagename' ) );
1160                 return $s;
1161         }
1162
1163         function privacyLink() {
1164                 $privacy = wfMsg( 'privacy' );
1165                 if ($privacy == '-') {
1166                         return '';
1167                 } else {
1168                         return self::makeKnownLink( wfMsgForContent( 'privacypage' ), $privacy);
1169                 }
1170         }
1171
1172         function aboutLink() {
1173                 $s = self::makeKnownLink( wfMsgForContent( 'aboutpage' ),
1174                   wfMsg( 'aboutsite' ) );
1175                 return $s;
1176         }
1177
1178         function disclaimerLink() {
1179                 $disclaimers = wfMsg( 'disclaimers' );
1180                 if ($disclaimers == '-') {
1181                         return '';
1182                 } else {
1183                         return self::makeKnownLink( wfMsgForContent( 'disclaimerpage' ),
1184                                                      $disclaimers );
1185                 }
1186         }
1187
1188         function editThisPage() {
1189                 global $wgOut, $wgTitle;
1190
1191                 if ( ! $wgOut->isArticleRelated() ) {
1192                         $s = wfMsg( 'protectedpage' );
1193                 } else {
1194                         if ( $wgTitle->userCanEdit() ) {
1195                                 $t = wfMsg( 'editthispage' );
1196                         } else {
1197                                 $t = wfMsg( 'viewsource' );
1198                         }
1199
1200                         $s = self::makeKnownLinkObj( $wgTitle, $t, $this->editUrlOptions() );
1201                 }
1202                 return $s;
1203         }
1204
1205         /**
1206          * Return URL options for the 'edit page' link.
1207          * This may include an 'oldid' specifier, if the current page view is such.
1208          *
1209          * @return string
1210          * @private
1211          */
1212         function editUrlOptions() {
1213                 global $wgArticle;
1214
1215                 if( $this->mRevisionId && ! $wgArticle->isCurrent() ) {
1216                         return "action=edit&oldid=" . intval( $this->mRevisionId );
1217                 } else {
1218                         return "action=edit";
1219                 }
1220         }
1221
1222         function deleteThisPage() {
1223                 global $wgUser, $wgTitle, $wgRequest;
1224
1225                 $diff = $wgRequest->getVal( 'diff' );
1226                 if ( $wgTitle->getArticleId() && ( ! $diff ) && $wgUser->isAllowed('delete') ) {
1227                         $t = wfMsg( 'deletethispage' );
1228
1229                         $s = self::makeKnownLinkObj( $wgTitle, $t, 'action=delete' );
1230                 } else {
1231                         $s = '';
1232                 }
1233                 return $s;
1234         }
1235
1236         function protectThisPage() {
1237                 global $wgUser, $wgTitle, $wgRequest;
1238
1239                 $diff = $wgRequest->getVal( 'diff' );
1240                 if ( $wgTitle->getArticleId() && ( ! $diff ) && $wgUser->isAllowed('protect') ) {
1241                         if ( $wgTitle->isProtected() ) {
1242                                 $t = wfMsg( 'unprotectthispage' );
1243                                 $q = 'action=unprotect';
1244                         } else {
1245                                 $t = wfMsg( 'protectthispage' );
1246                                 $q = 'action=protect';
1247                         }
1248                         $s = self::makeKnownLinkObj( $wgTitle, $t, $q );
1249                 } else {
1250                         $s = '';
1251                 }
1252                 return $s;
1253         }
1254
1255         function watchThisPage() {
1256                 global $wgOut, $wgTitle;
1257
1258                 if ( $wgOut->isArticleRelated() ) {
1259                         if ( $wgTitle->userIsWatching() ) {
1260                                 $t = wfMsg( 'unwatchthispage' );
1261                                 $q = 'action=unwatch';
1262                         } else {
1263                                 $t = wfMsg( 'watchthispage' );
1264                                 $q = 'action=watch';
1265                         }
1266                         $s = self::makeKnownLinkObj( $wgTitle, $t, $q );
1267                 } else {
1268                         $s = wfMsg( 'notanarticle' );
1269                 }
1270                 return $s;
1271         }
1272
1273         function moveThisPage() {
1274                 global $wgTitle;
1275
1276                 if ( $wgTitle->userCanMove() ) {
1277                         return self::makeKnownLinkObj( SpecialPage::getTitleFor( 'Movepage' ),
1278                           wfMsg( 'movethispage' ), 'target=' . $wgTitle->getPrefixedURL() );
1279                 } else {
1280                         // no message if page is protected - would be redundant
1281                         return '';
1282                 }
1283         }
1284
1285         function historyLink() {
1286                 global $wgTitle;
1287
1288                 return self::makeKnownLinkObj( $wgTitle,
1289                   wfMsg( 'history' ), 'action=history' );
1290         }
1291
1292         function whatLinksHere() {
1293                 global $wgTitle;
1294
1295                 return self::makeKnownLinkObj(
1296                         SpecialPage::getTitleFor( 'Whatlinkshere', $wgTitle->getPrefixedDBkey() ),
1297                         wfMsg( 'whatlinkshere' ) );
1298         }
1299
1300         function userContribsLink() {
1301                 global $wgTitle;
1302
1303                 return self::makeKnownLinkObj(
1304                         SpecialPage::getTitleFor( 'Contributions', $wgTitle->getDBkey() ),
1305                         wfMsg( 'contributions' ) );
1306         }
1307
1308         function showEmailUser( $id ) {
1309                 global $wgEnableEmail, $wgEnableUserEmail, $wgUser;
1310                 return $wgEnableEmail &&
1311                        $wgEnableUserEmail &&
1312                        $wgUser->isLoggedIn() && # show only to signed in users
1313                        0 != $id; # we can only email to non-anons ..
1314 #                      '' != $id->getEmail() && # who must have an email address stored ..
1315 #                      0 != $id->getEmailauthenticationtimestamp() && # .. which is authenticated
1316 #                      1 != $wgUser->getOption('disablemail'); # and not disabled
1317         }
1318
1319         function emailUserLink() {
1320                 global $wgTitle;
1321
1322                 return self::makeKnownLinkObj(
1323                         SpecialPage::getTitleFor( 'Emailuser', $wgTitle->getDBkey() ),
1324                         wfMsg( 'emailuser' ) );
1325         }
1326
1327         function watchPageLinksLink() {
1328                 global $wgOut, $wgTitle;
1329
1330                 if ( ! $wgOut->isArticleRelated() ) {
1331                         return '(' . wfMsg( 'notanarticle' ) . ')';
1332                 } else {
1333                         return self::makeKnownLinkObj(
1334                                 SpecialPage::getTitleFor( 'Recentchangeslinked', $wgTitle->getPrefixedDBkey() ),
1335                                 wfMsg( 'recentchangeslinked' ) );
1336                 }
1337         }
1338
1339         function trackbackLink() {
1340                 global $wgTitle;
1341
1342                 return "<a href=\"" . $wgTitle->trackbackURL() . "\">"
1343                         . wfMsg('trackbacklink') . "</a>";
1344         }
1345
1346         function otherLanguages() {
1347                 global $wgOut, $wgContLang, $wgHideInterlanguageLinks;
1348
1349                 if ( $wgHideInterlanguageLinks ) {
1350                         return '';
1351                 }
1352
1353                 $a = $wgOut->getLanguageLinks();
1354                 if ( 0 == count( $a ) ) {
1355                         return '';
1356                 }
1357
1358                 $s = wfMsg( 'otherlanguages' ) . ': ';
1359                 $first = true;
1360                 if($wgContLang->isRTL()) $s .= '<span dir="LTR">';
1361                 foreach( $a as $l ) {
1362                         if ( ! $first ) { $s .= ' | '; }
1363                         $first = false;
1364
1365                         $nt = Title::newFromText( $l );
1366                         $url = $nt->escapeFullURL();
1367                         $text = $wgContLang->getLanguageName( $nt->getInterwiki() );
1368
1369                         if ( '' == $text ) { $text = $l; }
1370                         $style = self::getExternalLinkAttributes( $l, $text );
1371                         $s .= "<a href=\"{$url}\"{$style}>{$text}</a>";
1372                 }
1373                 if($wgContLang->isRTL()) $s .= '</span>';
1374                 return $s;
1375         }
1376
1377         function bugReportsLink() {
1378                 $s = self::makeKnownLink( wfMsgForContent( 'bugreportspage' ),
1379                   wfMsg( 'bugreports' ) );
1380                 return $s;
1381         }
1382
1383         function dateLink() {
1384                 $t1 = Title::newFromText( gmdate( 'F j' ) );
1385                 $t2 = Title::newFromText( gmdate( 'Y' ) );
1386
1387                 $id = $t1->getArticleID();
1388
1389                 if ( 0 == $id ) {
1390                         $s = self::makeBrokenLink( $t1->getText() );
1391                 } else {
1392                         $s = self::makeKnownLink( $t1->getText() );
1393                 }
1394                 $s .= ', ';
1395
1396                 $id = $t2->getArticleID();
1397
1398                 if ( 0 == $id ) {
1399                         $s .= self::makeBrokenLink( $t2->getText() );
1400                 } else {
1401                         $s .= self::makeKnownLink( $t2->getText() );
1402                 }
1403                 return $s;
1404         }
1405
1406         function talkLink() {
1407                 global $wgTitle;
1408
1409                 if ( NS_SPECIAL == $wgTitle->getNamespace() ) {
1410                         # No discussion links for special pages
1411                         return '';
1412                 }
1413
1414                 if( $wgTitle->isTalkPage() ) {
1415                         $link = $wgTitle->getSubjectPage();
1416                         switch( $link->getNamespace() ) {
1417                                 case NS_MAIN:
1418                                         $text = wfMsg( 'articlepage' );
1419                                         break;
1420                                 case NS_USER:
1421                                         $text = wfMsg( 'userpage' );
1422                                         break;
1423                                 case NS_PROJECT:
1424                                         $text = wfMsg( 'projectpage' );
1425                                         break;
1426                                 case NS_IMAGE:
1427                                         $text = wfMsg( 'imagepage' );
1428                                         break;
1429                                 case NS_MEDIAWIKI:
1430                                         $text = wfMsg( 'mediawikipage' );
1431                                         break;
1432                                 case NS_TEMPLATE:
1433                                         $text = wfMsg( 'templatepage' );
1434                                         break;
1435                                 case NS_HELP:
1436                                         $text = wfMsg( 'viewhelppage' );
1437                                         break;
1438                                 case NS_CATEGORY:
1439                                         $text = wfMsg( 'categorypage' );
1440                                         break;
1441                                 default:
1442                                         $text = wfMsg( 'articlepage' );
1443                         }
1444                 } else {
1445                         $link = $wgTitle->getTalkPage();
1446                         $text = wfMsg( 'talkpage' );
1447                 }
1448
1449                 $s = self::makeLinkObj( $link, $text );
1450
1451                 return $s;
1452         }
1453
1454         function commentLink() {
1455                 global $wgTitle, $wgOut;
1456
1457                 if ( $wgTitle->getNamespace() == NS_SPECIAL ) {
1458                         return '';
1459                 }
1460
1461                 # __NEWSECTIONLINK___ changes behaviour here
1462                 # If it's present, the link points to this page, otherwise
1463                 # it points to the talk page
1464                 if( $wgTitle->isTalkPage() ) {
1465                         $title =& $wgTitle;
1466                 } elseif( $wgOut->showNewSectionLink() ) {
1467                         $title =& $wgTitle;
1468                 } else {
1469                         $title =& $wgTitle->getTalkPage();
1470                 }
1471
1472                 return self::makeKnownLinkObj( $title, wfMsg( 'postcomment' ), 'action=edit&section=new' );
1473         }
1474
1475         /* these are used extensively in SkinTemplate, but also some other places */
1476         static function makeSpecialUrl( $name, $urlaction = '' ) {
1477                 $title = SpecialPage::getTitleFor( $name );
1478                 return $title->getLocalURL( $urlaction );
1479         }
1480
1481         static function makeI18nUrl( $name, $urlaction = '' ) {
1482                 $title = Title::newFromText( wfMsgForContent( $name ) );
1483                 self::checkTitle( $title, $name );
1484                 return $title->getLocalURL( $urlaction );
1485         }
1486
1487         static function makeUrl( $name, $urlaction = '' ) {
1488                 $title = Title::newFromText( $name );
1489                 self::checkTitle( $title, $name );
1490                 return $title->getLocalURL( $urlaction );
1491         }
1492
1493         # If url string starts with http, consider as external URL, else
1494         # internal
1495         static function makeInternalOrExternalUrl( $name ) {
1496                 if ( preg_match( '/^(?:' . wfUrlProtocols() . ')/', $name ) ) {
1497                         return $name;
1498                 } else {
1499                         return self::makeUrl( $name );
1500                 }
1501         }
1502
1503         # this can be passed the NS number as defined in Language.php
1504         static function makeNSUrl( $name, $urlaction = '', $namespace = NS_MAIN ) {
1505                 $title = Title::makeTitleSafe( $namespace, $name );
1506                 self::checkTitle( $title, $name );
1507                 return $title->getLocalURL( $urlaction );
1508         }
1509
1510         /* these return an array with the 'href' and boolean 'exists' */
1511         static function makeUrlDetails( $name, $urlaction = '' ) {
1512                 $title = Title::newFromText( $name );
1513                 self::checkTitle( $title, $name );
1514                 return array(
1515                         'href' => $title->getLocalURL( $urlaction ),
1516                         'exists' => $title->getArticleID() != 0 ? true : false
1517                 );
1518         }
1519
1520         /**
1521          * Make URL details where the article exists (or at least it's convenient to think so)
1522          */
1523         static function makeKnownUrlDetails( $name, $urlaction = '' ) {
1524                 $title = Title::newFromText( $name );
1525                 self::checkTitle( $title, $name );
1526                 return array(
1527                         'href' => $title->getLocalURL( $urlaction ),
1528                         'exists' => true
1529                 );
1530         }
1531
1532         # make sure we have some title to operate on
1533         static function checkTitle( &$title, &$name ) {
1534                 if( !is_object( $title ) ) {
1535                         $title = Title::newFromText( $name );
1536                         if( !is_object( $title ) ) {
1537                                 $title = Title::newFromText( '--error: link target missing--' );
1538                         }
1539                 }
1540         }
1541
1542         /**
1543          * Build an array that represents the sidebar(s), the navigation bar among them
1544          *
1545          * @return array
1546          * @private
1547          */
1548         function buildSidebar() {
1549                 global $parserMemc, $wgEnableSidebarCache;
1550                 global $wgLang, $wgContLang;
1551
1552                 $fname = 'SkinTemplate::buildSidebar';
1553
1554                 wfProfileIn( $fname );
1555
1556                 $key = wfMemcKey( 'sidebar' );
1557                 $cacheSidebar = $wgEnableSidebarCache &&
1558                         ($wgLang->getCode() == $wgContLang->getCode());
1559
1560                 if ($cacheSidebar) {
1561                         $cachedsidebar = $parserMemc->get( $key );
1562                         if ($cachedsidebar!="") {
1563                                 wfProfileOut($fname);
1564                                 return $cachedsidebar;
1565                         }
1566                 }
1567
1568                 $bar = array();
1569                 $lines = explode( "\n", wfMsgForContent( 'sidebar' ) );
1570                 foreach ($lines as $line) {
1571                         if (strpos($line, '*') !== 0)
1572                                 continue;
1573                         if (strpos($line, '**') !== 0) {
1574                                 $line = trim($line, '* ');
1575                                 $heading = $line;
1576                         } else {
1577                                 if (strpos($line, '|') !== false) { // sanity check
1578                                         $line = explode( '|' , trim($line, '* '), 2 );
1579                                         $link = wfMsgForContent( $line[0] );
1580                                         if ($link == '-')
1581                                                 continue;
1582                                         if (wfEmptyMsg($line[1], $text = wfMsg($line[1])))
1583                                                 $text = $line[1];
1584                                         if (wfEmptyMsg($line[0], $link))
1585                                                 $link = $line[0];
1586
1587                                         if ( preg_match( '/^(?:' . wfUrlProtocols() . ')/', $link ) ) {
1588                                                 $href = $link;
1589                                         } else {
1590                                                 $title = Title::newFromText( $link );
1591                                                 if ( $title ) {
1592                                                         $title = $title->fixSpecialName();
1593                                                         $href = $title->getLocalURL();
1594                                                 } else {
1595                                                         $href = 'INVALID-TITLE';
1596                                                 }
1597                                         }
1598
1599                                         $bar[$heading][] = array(
1600                                                 'text' => $text,
1601                                                 'href' => $href,
1602                                                 'id' => 'n-' . strtr($line[1], ' ', '-'),
1603                                                 'active' => false
1604                                         );
1605                                 } else { continue; }
1606                         }
1607                 }
1608                 if ($cacheSidebar)
1609                         $cachednotice = $parserMemc->set( $key, $bar, 86400 );
1610                 wfProfileOut( $fname );
1611                 return $bar;
1612         }
1613 }
1614 ?>