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