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                 // fixme: the common.css import might be doubled now...
 367                 $s = "@import \"$wgStylePath/common.css?$wgStyleVersion\";\n";
 368                 $s = "@import \"$wgStylePath/$sheet?$wgStyleVersion\";\n";
 369                 if($wgContLang->isRTL()) $s .= "@import \"$wgStylePath/common/common_rtl.css?$wgStyleVersion\";\n";
 370
 371                 $query = "usemsgcache=yes&action=raw&ctype=text/css&smaxage=$wgSquidMaxage";
 372                 $s .= '@import "' . self::makeNSUrl( 'Common.css', $query, NS_MEDIAWIKI ) . "\";\n" .
 373                         '@import "' . self::makeNSUrl( ucfirst( $this->getSkinName() . '.css' ), $query, NS_MEDIAWIKI ) . "\";\n";
 374
 375                 $s .= $this->doGetUserStyles();
 376                 return $s."\n";
 377         }
 378
 379         /**
 380          * placeholder, returns generated js in monobook
 381          */
 382         function getUserJs() { return; }
 383
 384         /**
 385          * Return html code that include User stylesheets
 386          */
 387         function getUserStyles() {
 388                 $s = "<style type='text/css'>\n";
 389                 $s .= "/*/*/ /*<![CDATA[*/\n"; # <-- Hide the styles from Netscape 4 without hiding them from IE/Mac
 390                 $s .= $this->getUserStylesheet();
 391                 $s .= "/*]]>*/ /* */\n";
 392                 $s .= "</style>\n";
 393                 return $s;
 394         }
 395
 396         /**
 397          * Some styles that are set by user through the user settings interface.
 398          */
 399         function doGetUserStyles() {
 400                 global $wgUser, $wgUser, $wgRequest, $wgTitle, $wgAllowUserCss;
 401
 402                 $s = '';
 403
 404                 if( $wgAllowUserCss && $wgUser->isLoggedIn() ) { # logged in
 405                         if($wgTitle->isCssSubpage() && $this->userCanPreview( $wgRequest->getText( 'action' ) ) ) {
 406                                 $s .= $wgRequest->getText('wpTextbox1');
 407                         } else {
 408                                 $userpage = $wgUser->getUserPage();
 409                                 $s.= '@import "'.self::makeUrl(
 410                                         $userpage->getPrefixedText().'/'.$this->getSkinName().'.css',
 411                                         'action=raw&ctype=text/css').'";'."\n";
 412                         }
 413                 }
 414
 415                 return $s . $this->reallyDoGetUserStyles();
 416         }
 417
 418         function reallyDoGetUserStyles() {
 419                 global $wgUser;
 420                 $s = '';
 421                 if (($undopt = $wgUser->getOption("underline")) != 2) {
 422                         $underline = $undopt ? 'underline' : 'none';
 423                         $s .= "a { text-decoration: $underline; }\n";
 424                 }
 425                 if( $wgUser->getOption( 'highlightbroken' ) ) {
 426                         $s .= "a.new, #quickbar a.new { color: #CC2200; }\n";
 427                 } else {
 428                         $s .= <<<END
 429 a.new, #quickbar a.new,
 430 a.stub, #quickbar a.stub {
 431         color: inherit;
 432         text-decoration: inherit;
 433 }
 434 a.new:after, #quickbar a.new:after {
 435         content: "?";
 436         color: #CC2200;
 437         text-decoration: $underline;
 438 }
 439 a.stub:after, #quickbar a.stub:after {
 440         content: "!";
 441         color: #772233;
 442         text-decoration: $underline;
 443 }
 444 END;
 445                 }
 446                 if( $wgUser->getOption( 'justify' ) ) {
 447                         $s .= "#article, #bodyContent { text-align: justify; }\n";
 448                 }
 449                 if( !$wgUser->getOption( 'showtoc' ) ) {
 450                         $s .= "#toc { display: none; }\n";
 451                 }
 452                 if( !$wgUser->getOption( 'editsection' ) ) {
 453                         $s .= ".editsection { display: none; }\n";
 454                 }
 455                 return $s;
 456         }
 457
 458         function getBodyOptions() {
 459                 global $wgUser, $wgTitle, $wgOut, $wgRequest, $wgContLang;
 460
 461                 extract( $wgRequest->getValues( 'oldid', 'redirect', 'diff' ) );
 462
 463                 if ( 0 != $wgTitle->getNamespace() ) {
 464                         $a = array( 'bgcolor' => '#ffffec' );
 465                 }
 466                 else $a = array( 'bgcolor' => '#FFFFFF' );
 467                 if($wgOut->isArticle() && $wgUser->getOption('editondblclick') &&
 468                   $wgTitle->userCanEdit() ) {
 469                         $t = wfMsg( 'editthispage' );
 470                         $s = $wgTitle->getFullURL( $this->editUrlOptions() );
 471                         $s = 'document.location = "' .wfEscapeJSString( $s ) .'";';
 472                         $a += array ('ondblclick' => $s);
 473
 474                 }
 475                 $a['onload'] = $wgOut->getOnloadHandler();
 476                 if( $wgUser->getOption( 'editsectiononrightclick' ) ) {
 477                         if( $a['onload'] != '' ) {
 478                                 $a['onload'] .= ';';
 479                         }
 480                         $a['onload'] .= 'setupRightClickEdit()';
 481                 }
 482                 $a['class'] = 'ns-'.$wgTitle->getNamespace().' '.($wgContLang->isRTL() ? "rtl" : "ltr").
 483                 ' '.Sanitizer::escapeId( 'page-'.$wgTitle->getPrefixedText() );
 484                 return $a;
 485         }
 486
 487         /**
 488          * URL to the logo
 489          */
 490         function getLogo() {
 491                 global $wgLogo;
 492                 return $wgLogo;
 493         }
 494
 495         /**
 496          * This will be called immediately after the <body> tag.  Split into
 497          * two functions to make it easier to subclass.
 498          */
 499         function beforeContent() {
 500                 return $this->doBeforeContent();
 501         }
 502
 503         function doBeforeContent() {
 504                 global $wgContLang;
 505                 $fname = 'Skin::doBeforeContent';
 506                 wfProfileIn( $fname );
 507
 508                 $s = '';
 509                 $qb = $this->qbSetting();
 510
 511                 if( $langlinks = $this->otherLanguages() ) {
 512                         $rows = 2;
 513                         $borderhack = '';
 514                 } else {
 515                         $rows = 1;
 516                         $langlinks = false;
 517                         $borderhack = 'class="top"';
 518                 }
 519
 520                 $s .= "\n<div id='content'>\n<div id='topbar'>\n" .
 521                   "<table border='0' cellspacing='0' width='98%'>\n<tr>\n";
 522
 523                 $shove = ($qb != 0);
 524                 $left = ($qb == 1 || $qb == 3);
 525                 if($wgContLang->isRTL()) $left = !$left;
 526
 527                 if ( !$shove ) {
 528                         $s .= "<td class='top' align='left' valign='top' rowspan='{$rows}'>\n" .
 529                           $this->logoText() . '</td>';
 530                 } elseif( $left ) {
 531                         $s .= $this->getQuickbarCompensator( $rows );
 532                 }
 533                 $l = $wgContLang->isRTL() ? 'right' : 'left';
 534                 $s .= "<td {$borderhack} align='$l' valign='top'>\n";
 535
 536                 $s .= $this->topLinks() ;
 537                 $s .= "<p class='subtitle'>" . $this->pageTitleLinks() . "</p>\n";
 538
 539                 $r = $wgContLang->isRTL() ? "left" : "right";
 540                 $s .= "</td>\n<td {$borderhack} valign='top' align='$r' nowrap='nowrap'>";
 541                 $s .= $this->nameAndLogin();
 542                 $s .= "\n<br />" . $this->searchForm() . "</td>";
 543
 544                 if ( $langlinks ) {
 545                         $s .= "</tr>\n<tr>\n<td class='top' colspan=\"2\">$langlinks</td>\n";
 546                 }
 547
 548                 if ( $shove && !$left ) { # Right
 549                         $s .= $this->getQuickbarCompensator( $rows );
 550                 }
 551                 $s .= "</tr>\n</table>\n</div>\n";
 552                 $s .= "\n<div id='article'>\n";
 553
 554                 $notice = wfGetSiteNotice();
 555                 if( $notice ) {
 556                         $s .= "\n<div id='siteNotice'>$notice</div>\n";
 557                 }
 558                 $s .= $this->pageTitle();
 559                 $s .= $this->pageSubtitle() ;
 560                 $s .= $this->getCategories();
 561                 wfProfileOut( $fname );
 562                 return $s;
 563         }
 564
 565
 566         function getCategoryLinks () {
 567                 global $wgOut, $wgTitle, $wgUseCategoryBrowser;
 568                 global $wgContLang;
 569
 570                 if( count( $wgOut->mCategoryLinks ) == 0 ) return '';
 571
 572                 # Separator
 573                 $sep = wfMsgHtml( 'catseparator' );
 574
 575                 // Use Unicode bidi embedding override characters,
 576                 // to make sure links don't smash each other up in ugly ways.
 577                 $dir = $wgContLang->isRTL() ? 'rtl' : 'ltr';
 578                 $embed = "<span dir='$dir'>";
 579                 $pop = '</span>';
 580                 $t = $embed . implode ( "{$pop} {$sep} {$embed}" , $wgOut->mCategoryLinks ) . $pop;
 581
 582                 $msg = wfMsgExt( 'pagecategories', array( 'parsemag', 'escape' ), count( $wgOut->mCategoryLinks ) );
 583                 $s = $this->makeKnownLinkObj( Title::makeTitle( NS_SPECIAL, 'Categories' ),
 584                         $msg, 'article=' . urlencode( $wgTitle->getPrefixedDBkey() ) )
 585                         . ': ' . $t;
 586
 587                 # optional 'dmoz-like' category browser. Will be shown under the list
 588                 # of categories an article belong to
 589                 if($wgUseCategoryBrowser) {
 590                         $s .= '<br /><hr />';
 591
 592                         # get a big array of the parents tree
 593                         $parenttree = $wgTitle->getParentCategoryTree();
 594                         # Skin object passed by reference cause it can not be
 595                         # accessed under the method subfunction drawCategoryBrowser
 596                         $tempout = explode("\n", Skin::drawCategoryBrowser($parenttree, $this) );
 597                         # Clean out bogus first entry and sort them
 598                         unset($tempout[0]);
 599                         asort($tempout);
 600                         # Output one per line
 601                         $s .= implode("<br />\n", $tempout);
 602                 }
 603
 604                 return $s;
 605         }
 606
 607         /** Render the array as a serie of links.
 608          * @param $tree Array: categories tree returned by Title::getParentCategoryTree
 609          * @param &skin Object: skin passed by reference
 610          * @return String separated by &gt;, terminate with "\n"
 611          */
 612         function drawCategoryBrowser($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                                 $return .= Skin::drawCategoryBrowser($parent, $skin) . ' &gt; ';
 621                         }
 622                         # add our current element to the list
 623                         $eltitle = Title::NewFromText($element);
 624                         $return .=  $skin->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 = $this->getInternalLinkAttributes( $link, $name );
 696                                         $s .= " | <a href=\"{$link}\"{$style}>{$name}</a>";
 697                                 }
 698                         }
 699                 }
 700                 if ( 'history' == $action || isset( $diff ) || isset( $oldid ) ) {
 701                         $s .= ' | ' . $this->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 = $this->makeKnownLinkObj( $wgUser->getTalkPage(), wfMsgHtml( 'newmessageslink' ), 'redirect=no' );
 710                                 $dl = $this->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                                 $this->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 = $this->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 = $this->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 />" . $this->makeKnownLinkObj(
 840                                 Title::makeTitle( NS_SPECIAL, 'Userlogin' ),
 841                                 wfMsg( 'login' ), $q );
 842                 } else {
 843                         $n = $wgUser->getName();
 844                         $rt = $wgTitle->getPrefixedURL();
 845                         $tl = $this->makeKnownLinkObj( $wgUser->getTalkPage(),
 846                           $wgLang->getNsText( NS_TALK ) );
 847
 848                         $tl = " ({$tl})";
 849
 850                         $s .= $this->makeKnownLinkObj( $wgUser->getUserPage(),
 851                           $n ) . "{$tl}<br />" .
 852                           $this->makeKnownLinkObj( Title::makeTitle( NS_SPECIAL, 'Userlogout' ), wfMsg( 'logout' ),
 853                           "returnto={$rt}" ) . ' | ' .
 854                           $this->specialLink( 'preferences' );
 855                 }
 856                 $s .= ' | ' . $this->makeKnownLink( wfMsgForContent( 'helppage' ),
 857                   wfMsg( 'help' ) );
 858
 859                 return $s;
 860         }
 861
 862         function getSearchLink() {
 863                 $searchPage =& Title::makeTitle( NS_SPECIAL, '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                   . $this->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                 /* show links to different language variants */
 900                 global $wgDisableLangConversion, $wgContLang, $wgTitle;
 901                 $variants = $wgContLang->getVariants();
 902                 if( !$wgDisableLangConversion && sizeof( $variants ) > 1 ) {
 903                         foreach( $variants as $code ) {
 904                                 $varname = $wgContLang->getVariantname( $code );
 905                                 if( $varname == 'disable' )
 906                                         continue;
 907                                 $s .= ' | <a href="' . $wgTitle->getLocalUrl( 'variant=' . $code ) . '">' . $varname . '</a>';
 908                         }
 909                 }
 910
 911                 return $s;
 912         }
 913
 914         function bottomLinks() {
 915                 global $wgOut, $wgUser, $wgTitle, $wgUseTrackbacks;
 916                 $sep = " |\n";
 917
 918                 $s = '';
 919                 if ( $wgOut->isArticleRelated() ) {
 920                         $s .= '<strong>' . $this->editThisPage() . '</strong>';
 921                         if ( $wgUser->isLoggedIn() ) {
 922                                 $s .= $sep . $this->watchThisPage();
 923                         }
 924                         $s .= $sep . $this->talkLink()
 925                           . $sep . $this->historyLink()
 926                           . $sep . $this->whatLinksHere()
 927                           . $sep . $this->watchPageLinksLink();
 928
 929                         if ($wgUseTrackbacks)
 930                                 $s .= $sep . $this->trackbackLink();
 931
 932                         if ( $wgTitle->getNamespace() == NS_USER
 933                             || $wgTitle->getNamespace() == NS_USER_TALK )
 934
 935                         {
 936                                 $id=User::idFromName($wgTitle->getText());
 937                                 $ip=User::isIP($wgTitle->getText());
 938
 939                                 if($id || $ip) { # both anons and non-anons have contri list
 940                                         $s .= $sep . $this->userContribsLink();
 941                                 }
 942                                 if( $this->showEmailUser( $id ) ) {
 943                                         $s .= $sep . $this->emailUserLink();
 944                                 }
 945                         }
 946                         if ( $wgTitle->getArticleId() ) {
 947                                 $s .= "\n<br />";
 948                                 if($wgUser->isAllowed('delete')) { $s .= $this->deleteThisPage(); }
 949                                 if($wgUser->isAllowed('protect')) { $s .= $sep . $this->protectThisPage(); }
 950                                 if($wgUser->isAllowed('move')) { $s .= $sep . $this->moveThisPage(); }
 951                         }
 952                         $s .= "<br />\n" . $this->otherLanguages();
 953                 }
 954                 return $s;
 955         }
 956
 957         function pageStats() {
 958                 global $wgOut, $wgLang, $wgArticle, $wgRequest, $wgUser;
 959                 global $wgDisableCounters, $wgMaxCredits, $wgShowCreditsIfMax, $wgTitle, $wgPageShowWatchingUsers;
 960
 961                 extract( $wgRequest->getValues( 'oldid', 'diff' ) );
 962                 if ( ! $wgOut->isArticle() ) { return ''; }
 963                 if ( isset( $oldid ) || isset( $diff ) ) { return ''; }
 964                 if ( 0 == $wgArticle->getID() ) { return ''; }
 965
 966                 $s = '';
 967                 if ( !$wgDisableCounters ) {
 968                         $count = $wgLang->formatNum( $wgArticle->getCount() );
 969                         if ( $count ) {
 970                                 $s = wfMsgExt( 'viewcount', array( 'parseinline' ), $count );
 971                         }
 972                 }
 973
 974                 if (isset($wgMaxCredits) && $wgMaxCredits != 0) {
 975                     require_once('Credits.php');
 976                     $s .= ' ' . getCredits($wgArticle, $wgMaxCredits, $wgShowCreditsIfMax);
 977                 } else {
 978                     $s .= $this->lastModified();
 979                 }
 980
 981                 if ($wgPageShowWatchingUsers && $wgUser->getOption( 'shownumberswatching' )) {
 982                         $dbr =& wfGetDB( DB_SLAVE );
 983                         extract( $dbr->tableNames( 'watchlist' ) );
 984                         $sql = "SELECT COUNT(*) AS n FROM $watchlist
 985                                 WHERE wl_title='" . $dbr->strencode($wgTitle->getDBKey()) .
 986                                 "' AND  wl_namespace=" . $wgTitle->getNamespace() ;
 987                         $res = $dbr->query( $sql, 'Skin::pageStats');
 988                         $x = $dbr->fetchObject( $res );
 989                         $s .= ' ' . wfMsg('number_of_watching_users_pageview', $x->n );
 990                 }
 991
 992                 return $s . ' ' .  $this->getCopyright();
 993         }
 994
 995         function getCopyright( $type = 'detect' ) {
 996                 global $wgRightsPage, $wgRightsUrl, $wgRightsText, $wgRequest;
 997
 998                 if ( $type == 'detect' ) {
 999                         $oldid = $wgRequest->getVal( 'oldid' );
1000                         $diff = $wgRequest->getVal( 'diff' );
1001
1002                         if ( !is_null( $oldid ) && is_null( $diff ) && wfMsgForContent( 'history_copyright' ) !== '-' ) {
1003                                 $type = 'history';
1004                         } else {
1005                                 $type = 'normal';
1006                         }
1007                 }
1008
1009                 if ( $type == 'history' ) {
1010                         $msg = 'history_copyright';
1011                 } else {
1012                         $msg = 'copyright';
1013                 }
1014
1015                 $out = '';
1016                 if( $wgRightsPage ) {
1017                         $link = $this->makeKnownLink( $wgRightsPage, $wgRightsText );
1018                 } elseif( $wgRightsUrl ) {
1019                         $link = $this->makeExternalLink( $wgRightsUrl, $wgRightsText );
1020                 } else {
1021                         # Give up now
1022                         return $out;
1023                 }
1024                 $out .= wfMsgForContent( $msg, $link );
1025                 return $out;
1026         }
1027
1028         function getCopyrightIcon() {
1029                 global $wgRightsUrl, $wgRightsText, $wgRightsIcon, $wgCopyrightIcon;
1030                 $out = '';
1031                 if ( isset( $wgCopyrightIcon ) && $wgCopyrightIcon ) {
1032                         $out = $wgCopyrightIcon;
1033                 } else if ( $wgRightsIcon ) {
1034                         $icon = htmlspecialchars( $wgRightsIcon );
1035                         if ( $wgRightsUrl ) {
1036                                 $url = htmlspecialchars( $wgRightsUrl );
1037                                 $out .= '<a href="'.$url.'">';
1038                         }
1039                         $text = htmlspecialchars( $wgRightsText );
1040                         $out .= "<img src=\"$icon\" alt='$text' />";
1041                         if ( $wgRightsUrl ) {
1042                                 $out .= '</a>';
1043                         }
1044                 }
1045                 return $out;
1046         }
1047
1048         function getPoweredBy() {
1049                 global $wgStylePath;
1050                 $url = htmlspecialchars( "$wgStylePath/common/images/poweredby_mediawiki_88x31.png" );
1051                 $img = '<a href="http://www.mediawiki.org/"><img src="'.$url.'" alt="MediaWiki" /></a>';
1052                 return $img;
1053         }
1054
1055         function lastModified() {
1056                 global $wgLang, $wgArticle, $wgLoadBalancer;
1057
1058                 $timestamp = $wgArticle->getTimestamp();
1059                 if ( $timestamp ) {
1060                         $d = $wgLang->date( $timestamp, true );
1061                         $t = $wgLang->time( $timestamp, true );
1062                         $s = ' ' . wfMsg( 'lastmodifiedat', $d, $t );
1063                 } else {
1064                         $s = '';
1065                 }
1066                 if ( $wgLoadBalancer->getLaggedSlaveMode() ) {
1067                         $s .= ' <strong>' . wfMsg( 'laggedslavemode' ) . '</strong>';
1068                 }
1069                 return $s;
1070         }
1071
1072         function logoText( $align = '' ) {
1073                 if ( '' != $align ) { $a = " align='{$align}'"; }
1074                 else { $a = ''; }
1075
1076                 $mp = wfMsg( 'mainpage' );
1077                 $titleObj = Title::newFromText( $mp );
1078                 if ( is_object( $titleObj ) ) {
1079                         $url = $titleObj->escapeLocalURL();
1080                 } else {
1081                         $url = '';
1082                 }
1083
1084                 $logourl = $this->getLogo();
1085                 $s = "<a href='{$url}'><img{$a} src='{$logourl}' alt='[{$mp}]' /></a>";
1086                 return $s;
1087         }
1088
1089         /**
1090          * show a drop-down box of special pages
1091          */
1092         function specialPagesList() {
1093                 global $wgUser, $wgContLang, $wgServer, $wgRedirectScript;
1094                 $a = array();
1095                 $pages = array_merge( SpecialPage::getRegularPages(), SpecialPage::getRestrictedPages() );
1096                 foreach ( $pages as $name => $page ) {
1097                         $pages[$name] = $page->getDescription();
1098                 }
1099
1100                 $go = wfMsg( 'go' );
1101                 $sp = wfMsg( 'specialpages' );
1102                 $spp = $wgContLang->specialPage( 'Specialpages' );
1103
1104                 $s = '<form id="specialpages" method="get" class="inline" ' .
1105                   'action="' . htmlspecialchars( "{$wgServer}{$wgRedirectScript}" ) . "\">\n";
1106                 $s .= "<select name=\"wpDropdown\">\n";
1107                 $s .= "<option value=\"{$spp}\">{$sp}</option>\n";
1108
1109
1110                 foreach ( $pages as $name => $desc ) {
1111                         $p = $wgContLang->specialPage( $name );
1112                         $s .= "<option value=\"{$p}\">{$desc}</option>\n";
1113                 }
1114                 $s .= "</select>\n";
1115                 $s .= "<input type='submit' value=\"{$go}\" name='redirect' />\n";
1116                 $s .= "</form>\n";
1117                 return $s;
1118         }
1119
1120         function mainPageLink() {
1121                 $mp = wfMsgForContent( 'mainpage' );
1122                 $mptxt = wfMsg( 'mainpage');
1123                 $s = $this->makeKnownLink( $mp, $mptxt );
1124                 return $s;
1125         }
1126
1127         function copyrightLink() {
1128                 $s = $this->makeKnownLink( wfMsgForContent( 'copyrightpage' ),
1129                   wfMsg( 'copyrightpagename' ) );
1130                 return $s;
1131         }
1132
1133         function privacyLink() {
1134                 $privacy = wfMsg( 'privacy' );
1135                 if ($privacy == '-') {
1136                         return '';
1137                 } else {
1138                         return $this->makeKnownLink( wfMsgForContent( 'privacypage' ), $privacy);
1139                 }
1140         }
1141
1142         function aboutLink() {
1143                 $s = $this->makeKnownLink( wfMsgForContent( 'aboutpage' ),
1144                   wfMsg( 'aboutsite' ) );
1145                 return $s;
1146         }
1147
1148         function disclaimerLink() {
1149                 $disclaimers = wfMsg( 'disclaimers' );
1150                 if ($disclaimers == '-') {
1151                         return '';
1152                 } else {
1153                         return $this->makeKnownLink( wfMsgForContent( 'disclaimerpage' ),
1154                                                      $disclaimers );
1155                 }
1156         }
1157
1158         function editThisPage() {
1159                 global $wgOut, $wgTitle;
1160
1161                 if ( ! $wgOut->isArticleRelated() ) {
1162                         $s = wfMsg( 'protectedpage' );
1163                 } else {
1164                         if ( $wgTitle->userCanEdit() ) {
1165                                 $t = wfMsg( 'editthispage' );
1166                         } else {
1167                                 $t = wfMsg( 'viewsource' );
1168                         }
1169
1170                         $s = $this->makeKnownLinkObj( $wgTitle, $t, $this->editUrlOptions() );
1171                 }
1172                 return $s;
1173         }
1174
1175         /**
1176          * Return URL options for the 'edit page' link.
1177          * This may include an 'oldid' specifier, if the current page view is such.
1178          *
1179          * @return string
1180          * @private
1181          */
1182         function editUrlOptions() {
1183                 global $wgArticle;
1184
1185                 if( $this->mRevisionId && ! $wgArticle->isCurrent() ) {
1186                         return "action=edit&oldid=" . intval( $this->mRevisionId );
1187                 } else {
1188                         return "action=edit";
1189                 }
1190         }
1191
1192         function deleteThisPage() {
1193                 global $wgUser, $wgTitle, $wgRequest;
1194
1195                 $diff = $wgRequest->getVal( 'diff' );
1196                 if ( $wgTitle->getArticleId() && ( ! $diff ) && $wgUser->isAllowed('delete') ) {
1197                         $t = wfMsg( 'deletethispage' );
1198
1199                         $s = $this->makeKnownLinkObj( $wgTitle, $t, 'action=delete' );
1200                 } else {
1201                         $s = '';
1202                 }
1203                 return $s;
1204         }
1205
1206         function protectThisPage() {
1207                 global $wgUser, $wgTitle, $wgRequest;
1208
1209                 $diff = $wgRequest->getVal( 'diff' );
1210                 if ( $wgTitle->getArticleId() && ( ! $diff ) && $wgUser->isAllowed('protect') ) {
1211                         if ( $wgTitle->isProtected() ) {
1212                                 $t = wfMsg( 'unprotectthispage' );
1213                                 $q = 'action=unprotect';
1214                         } else {
1215                                 $t = wfMsg( 'protectthispage' );
1216                                 $q = 'action=protect';
1217                         }
1218                         $s = $this->makeKnownLinkObj( $wgTitle, $t, $q );
1219                 } else {
1220                         $s = '';
1221                 }
1222                 return $s;
1223         }
1224
1225         function watchThisPage() {
1226                 global $wgOut, $wgTitle;
1227
1228                 if ( $wgOut->isArticleRelated() ) {
1229                         if ( $wgTitle->userIsWatching() ) {
1230                                 $t = wfMsg( 'unwatchthispage' );
1231                                 $q = 'action=unwatch';
1232                         } else {
1233                                 $t = wfMsg( 'watchthispage' );
1234                                 $q = 'action=watch';
1235                         }
1236                         $s = $this->makeKnownLinkObj( $wgTitle, $t, $q );
1237                 } else {
1238                         $s = wfMsg( 'notanarticle' );
1239                 }
1240                 return $s;
1241         }
1242
1243         function moveThisPage() {
1244                 global $wgTitle;
1245
1246                 if ( $wgTitle->userCanMove() ) {
1247                         return $this->makeKnownLinkObj( Title::makeTitle( NS_SPECIAL, 'Movepage' ),
1248                           wfMsg( 'movethispage' ), 'target=' . $wgTitle->getPrefixedURL() );
1249                 } else {
1250                         // no message if page is protected - would be redundant
1251                         return '';
1252                 }
1253         }
1254
1255         function historyLink() {
1256                 global $wgTitle;
1257
1258                 return $this->makeKnownLinkObj( $wgTitle,
1259                   wfMsg( 'history' ), 'action=history' );
1260         }
1261
1262         function whatLinksHere() {
1263                 global $wgTitle;
1264
1265                 return $this->makeKnownLinkObj( Title::makeTitle( NS_SPECIAL, 'Whatlinkshere' ),
1266                   wfMsg( 'whatlinkshere' ), 'target=' . $wgTitle->getPrefixedURL() );
1267         }
1268
1269         function userContribsLink() {
1270                 global $wgTitle;
1271
1272                 return $this->makeKnownLinkObj( Title::makeTitle( NS_SPECIAL, 'Contributions' ),
1273                   wfMsg( 'contributions' ), 'target=' . $wgTitle->getPartialURL() );
1274         }
1275
1276         function showEmailUser( $id ) {
1277                 global $wgEnableEmail, $wgEnableUserEmail, $wgUser;
1278                 return $wgEnableEmail &&
1279                        $wgEnableUserEmail &&
1280                        $wgUser->isLoggedIn() && # show only to signed in users
1281                        0 != $id; # we can only email to non-anons ..
1282 #                      '' != $id->getEmail() && # who must have an email address stored ..
1283 #                      0 != $id->getEmailauthenticationtimestamp() && # .. which is authenticated
1284 #                      1 != $wgUser->getOption('disablemail'); # and not disabled
1285         }
1286
1287         function emailUserLink() {
1288                 global $wgTitle;
1289
1290                 return $this->makeKnownLinkObj( Title::makeTitle( NS_SPECIAL, 'Emailuser' ),
1291                   wfMsg( 'emailuser' ), 'target=' . $wgTitle->getPartialURL() );
1292         }
1293
1294         function watchPageLinksLink() {
1295                 global $wgOut, $wgTitle;
1296
1297                 if ( ! $wgOut->isArticleRelated() ) {
1298                         return '(' . wfMsg( 'notanarticle' ) . ')';
1299                 } else {
1300                         return $this->makeKnownLinkObj( Title::makeTitle( NS_SPECIAL,
1301                           'Recentchangeslinked' ), wfMsg( 'recentchangeslinked' ),
1302                           'target=' . $wgTitle->getPrefixedURL() );
1303                 }
1304         }
1305
1306         function trackbackLink() {
1307                 global $wgTitle;
1308
1309                 return "<a href=\"" . $wgTitle->trackbackURL() . "\">"
1310                         . wfMsg('trackbacklink') . "</a>";
1311         }
1312
1313         function otherLanguages() {
1314                 global $wgOut, $wgContLang, $wgHideInterlanguageLinks;
1315
1316                 if ( $wgHideInterlanguageLinks ) {
1317                         return '';
1318                 }
1319
1320                 $a = $wgOut->getLanguageLinks();
1321                 if ( 0 == count( $a ) ) {
1322                         return '';
1323                 }
1324
1325                 $s = wfMsg( 'otherlanguages' ) . ': ';
1326                 $first = true;
1327                 if($wgContLang->isRTL()) $s .= '<span dir="LTR">';
1328                 foreach( $a as $l ) {
1329                         if ( ! $first ) { $s .= ' | '; }
1330                         $first = false;
1331
1332                         $nt = Title::newFromText( $l );
1333                         $url = $nt->escapeFullURL();
1334                         $text = $wgContLang->getLanguageName( $nt->getInterwiki() );
1335
1336                         if ( '' == $text ) { $text = $l; }
1337                         $style = $this->getExternalLinkAttributes( $l, $text );
1338                         $s .= "<a href=\"{$url}\"{$style}>{$text}</a>";
1339                 }
1340                 if($wgContLang->isRTL()) $s .= '</span>';
1341                 return $s;
1342         }
1343
1344         function bugReportsLink() {
1345                 $s = $this->makeKnownLink( wfMsgForContent( 'bugreportspage' ),
1346                   wfMsg( 'bugreports' ) );
1347                 return $s;
1348         }
1349
1350         function dateLink() {
1351                 $t1 = Title::newFromText( gmdate( 'F j' ) );
1352                 $t2 = Title::newFromText( gmdate( 'Y' ) );
1353
1354                 $id = $t1->getArticleID();
1355
1356                 if ( 0 == $id ) {
1357                         $s = $this->makeBrokenLink( $t1->getText() );
1358                 } else {
1359                         $s = $this->makeKnownLink( $t1->getText() );
1360                 }
1361                 $s .= ', ';
1362
1363                 $id = $t2->getArticleID();
1364
1365                 if ( 0 == $id ) {
1366                         $s .= $this->makeBrokenLink( $t2->getText() );
1367                 } else {
1368                         $s .= $this->makeKnownLink( $t2->getText() );
1369                 }
1370                 return $s;
1371         }
1372
1373         function talkLink() {
1374                 global $wgTitle;
1375
1376                 if ( NS_SPECIAL == $wgTitle->getNamespace() ) {
1377                         # No discussion links for special pages
1378                         return '';
1379                 }
1380
1381                 if( $wgTitle->isTalkPage() ) {
1382                         $link = $wgTitle->getSubjectPage();
1383                         switch( $link->getNamespace() ) {
1384                                 case NS_MAIN:
1385                                         $text = wfMsg( 'articlepage' );
1386                                         break;
1387                                 case NS_USER:
1388                                         $text = wfMsg( 'userpage' );
1389                                         break;
1390                                 case NS_PROJECT:
1391                                         $text = wfMsg( 'projectpage' );
1392                                         break;
1393                                 case NS_IMAGE:
1394                                         $text = wfMsg( 'imagepage' );
1395                                         break;
1396                                 case NS_MEDIAWIKI:
1397                                         $text = wfMsg( 'mediawikipage' );
1398                                         break;
1399                                 case NS_TEMPLATE:
1400                                         $text = wfMsg( 'templatepage' );
1401                                         break;
1402                                 case NS_HELP:
1403                                         $text = wfMsg( 'viewhelppage' );
1404                                         break;
1405                                 case NS_CATEGORY:
1406                                         $text = wfMsg( 'categorypage' );
1407                                         break;
1408                                 default:
1409                                         $text = wfMsg( 'articlepage' );
1410                         }
1411                 } else {
1412                         $link = $wgTitle->getTalkPage();
1413                         $text = wfMsg( 'talkpage' );
1414                 }
1415
1416                 $s = $this->makeLinkObj( $link, $text );
1417
1418                 return $s;
1419         }
1420
1421         function commentLink() {
1422                 global $wgTitle, $wgOut;
1423
1424                 if ( $wgTitle->getNamespace() == NS_SPECIAL ) {
1425                         return '';
1426                 }
1427
1428                 # __NEWSECTIONLINK___ changes behaviour here
1429                 # If it's present, the link points to this page, otherwise
1430                 # it points to the talk page
1431                 if( $wgTitle->isTalkPage() ) {
1432                         $title =& $wgTitle;
1433                 } elseif( $wgOut->showNewSectionLink() ) {
1434                         $title =& $wgTitle;
1435                 } else {
1436                         $title =& $wgTitle->getTalkPage();
1437                 }
1438
1439                 return $this->makeKnownLinkObj( $title, wfMsg( 'postcomment' ), 'action=edit&section=new' );
1440         }
1441
1442         /* these are used extensively in SkinTemplate, but also some other places */
1443         static function makeSpecialUrl( $name, $urlaction = '' ) {
1444                 $title = Title::makeTitle( NS_SPECIAL, $name );
1445                 return $title->getLocalURL( $urlaction );
1446         }
1447
1448         static function makeI18nUrl( $name, $urlaction = '' ) {
1449                 $title = Title::newFromText( wfMsgForContent( $name ) );
1450                 self::checkTitle( $title, $name );
1451                 return $title->getLocalURL( $urlaction );
1452         }
1453
1454         static function makeUrl( $name, $urlaction = '' ) {
1455                 $title = Title::newFromText( $name );
1456                 self::checkTitle( $title, $name );
1457                 return $title->getLocalURL( $urlaction );
1458         }
1459
1460         # If url string starts with http, consider as external URL, else
1461         # internal
1462         static function makeInternalOrExternalUrl( $name ) {
1463                 if ( preg_match( '/^(?:' . wfUrlProtocols() . ')/', $name ) ) {
1464                         return $name;
1465                 } else {
1466                         return self::makeUrl( $name );
1467                 }
1468         }
1469
1470         # this can be passed the NS number as defined in Language.php
1471         static function makeNSUrl( $name, $urlaction = '', $namespace = NS_MAIN ) {
1472                 $title = Title::makeTitleSafe( $namespace, $name );
1473                 self::checkTitle( $title, $name );
1474                 return $title->getLocalURL( $urlaction );
1475         }
1476
1477         /* these return an array with the 'href' and boolean 'exists' */
1478         static function makeUrlDetails( $name, $urlaction = '' ) {
1479                 $title = Title::newFromText( $name );
1480                 self::checkTitle( $title, $name );
1481                 return array(
1482                         'href' => $title->getLocalURL( $urlaction ),
1483                         'exists' => $title->getArticleID() != 0 ? true : false
1484                 );
1485         }
1486
1487         /**
1488          * Make URL details where the article exists (or at least it's convenient to think so)
1489          */
1490         static function makeKnownUrlDetails( $name, $urlaction = '' ) {
1491                 $title = Title::newFromText( $name );
1492                 self::checkTitle( $title, $name );
1493                 return array(
1494                         'href' => $title->getLocalURL( $urlaction ),
1495                         'exists' => true
1496                 );
1497         }
1498
1499         # make sure we have some title to operate on
1500         static function checkTitle( &$title, &$name ) {
1501                 if( !is_object( $title ) ) {
1502                         $title = Title::newFromText( $name );
1503                         if( !is_object( $title ) ) {
1504                                 $title = Title::newFromText( '--error: link target missing--' );
1505                         }
1506                 }
1507         }
1508
1509         /**
1510          * Build an array that represents the sidebar(s), the navigation bar among them
1511          *
1512          * @return array
1513          * @private
1514          */
1515         function buildSidebar() {
1516                 global $parserMemc, $wgEnableSidebarCache;
1517                 global $wgLang, $wgContLang;
1518
1519                 $fname = 'SkinTemplate::buildSidebar';
1520
1521                 wfProfileIn( $fname );
1522
1523                 $key = wfMemcKey( 'sidebar' );
1524                 $cacheSidebar = $wgEnableSidebarCache &&
1525                         ($wgLang->getCode() == $wgContLang->getCode());
1526
1527                 if ($cacheSidebar) {
1528                         $cachedsidebar = $parserMemc->get( $key );
1529                         if ($cachedsidebar!="") {
1530                                 wfProfileOut($fname);
1531                                 return $cachedsidebar;
1532                         }
1533                 }
1534
1535                 $bar = array();
1536                 $lines = explode( "\n", wfMsgForContent( 'sidebar' ) );
1537                 foreach ($lines as $line) {
1538                         if (strpos($line, '*') !== 0)
1539                                 continue;
1540                         if (strpos($line, '**') !== 0) {
1541                                 $line = trim($line, '* ');
1542                                 $heading = $line;
1543                         } else {
1544                                 if (strpos($line, '|') !== false) { // sanity check
1545                                         $line = explode( '|' , trim($line, '* '), 2 );
1546                                         $link = wfMsgForContent( $line[0] );
1547                                         if ($link == '-')
1548                                                 continue;
1549                                         if (wfEmptyMsg($line[1], $text = wfMsg($line[1])))
1550                                                 $text = $line[1];
1551                                         if (wfEmptyMsg($line[0], $link))
1552                                                 $link = $line[0];
1553                                         $href = self::makeInternalOrExternalUrl( $link );
1554                                         $bar[$heading][] = array(
1555                                                 'text' => $text,
1556                                                 'href' => $href,
1557                                                 'id' => 'n-' . strtr($line[1], ' ', '-'),
1558                                                 'active' => false
1559                                         );
1560                                 } else { continue; }
1561                         }
1562                 }
1563                 if ($cacheSidebar)
1564                         $cachednotice = $parserMemc->set( $key, $bar, 86400 );
1565                 wfProfileOut( $fname );
1566                 return $bar;
1567         }
1568 }
1569 ?>