includes/Skin.php

   1 <?php
   2 if ( ! defined( 'MEDIAWIKI' ) )
   3         die( 1 );
   4
   5 /**
   6  *
   7  * @addtogroup Skins
   8  */
   9
  10 # See skin.txt
  11
  12 /**
  13  * The main skin class that provide methods and properties for all other skins.
  14  * This base class is also the "Standard" skin.
  15  */
  16 class Skin extends Linker {
  17         /**#@+
  18          * @private
  19          */
  20         var $lastdate, $lastline;
  21         var $rc_cache ; # Cache for Enhanced Recent Changes
  22         var $rcCacheIndex ; # Recent Changes Cache Counter for visibility toggle
  23         var $rcMoveIndex;
  24         var $mWatchLinkNum = 0; // Appended to end of watch link id's
  25         /**#@-*/
  26
  27         /** Constructor, call parent constructor */
  28         function Skin() { parent::__construct(); }
  29
  30         /**
  31          * Fetch the set of available skins.
  32          * @return array of strings
  33          * @static
  34          */
  35         static function &getSkinNames() {
  36                 global $wgValidSkinNames;
  37                 static $skinsInitialised = false;
  38                 if ( !$skinsInitialised ) {
  39                         # Get a list of available skins
  40                         # Build using the regular expression '^(.*).php$'
  41                         # Array keys are all lower case, array value keep the case used by filename
  42                         #
  43                         wfProfileIn( __METHOD__ . '-init' );
  44                         global $wgStyleDirectory;
  45                         $skinDir = dir( $wgStyleDirectory );
  46
  47                         # while code from www.php.net
  48                         while (false !== ($file = $skinDir->read())) {
  49                                 // Skip non-PHP files, hidden files, and '.dep' includes
  50                                 $matches = array();
  51                                 if(preg_match('/^([^.]*)\.php$/',$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                 // Preload base classes to work around APC/PHP5 bug
 120                 $deps = "{$wgStyleDirectory}/{$skinName}.deps.php";
 121                 if( file_exists( $deps ) ) include_once( $deps );
 122                 require_once( "{$wgStyleDirectory}/{$skinName}.php" );
 123
 124                 # Check if we got if not failback to default skin
 125                 $className = 'Skin'.$skinName;
 126                 if( !class_exists( $className ) ) {
 127                         # DO NOT die if the class isn't found. This breaks maintenance
 128                         # scripts and can cause a user account to be unrecoverable
 129                         # except by SQL manipulation if a previously valid skin name
 130                         # is no longer valid.
 131                         wfDebug( "Skin class does not exist: $className\n" );
 132                         $className = 'SkinStandard';
 133                         require_once( "{$wgStyleDirectory}/Standard.php" );
 134                 }
 135                 $skin = new $className;
 136                 return $skin;
 137         }
 138
 139         /** @return string path to the skin stylesheet */
 140         function getStylesheet() {
 141                 return 'common/wikistandard.css';
 142         }
 143
 144         /** @return string skin name */
 145         function getSkinName() {
 146                 return 'standard';
 147         }
 148
 149         function qbSetting() {
 150                 global $wgOut, $wgUser;
 151
 152                 if ( $wgOut->isQuickbarSuppressed() ) { return 0; }
 153                 $q = $wgUser->getOption( 'quickbar', 0 );
 154                 return $q;
 155         }
 156
 157         function initPage( &$out ) {
 158                 global $wgFavicon, $wgScriptPath, $wgSitename, $wgLanguageCode, $wgLanguageNames;
 159
 160                 $fname = 'Skin::initPage';
 161                 wfProfileIn( $fname );
 162
 163                 if( false !== $wgFavicon ) {
 164                         $out->addLink( array( 'rel' => 'shortcut icon', 'href' => $wgFavicon ) );
 165                 }
 166
 167                 # OpenSearch description link
 168                 $out->addLink( array(
 169                         'rel' => 'search',
 170                         'type' => 'application/opensearchdescription+xml',
 171                         'href' => "$wgScriptPath/opensearch_desc.php",
 172                         'title' => "$wgSitename ({$wgLanguageNames[$wgLanguageCode]})",
 173                 ));
 174
 175                 $this->addMetadataLinks($out);
 176
 177                 $this->mRevisionId = $out->mRevisionId;
 178
 179                 $this->preloadExistence();
 180
 181                 wfProfileOut( $fname );
 182         }
 183
 184         /**
 185          * Preload the existence of three commonly-requested pages in a single query
 186          */
 187         function preloadExistence() {
 188                 global $wgUser, $wgTitle;
 189
 190                 if ( $wgTitle->isTalkPage() ) {
 191                         $otherTab = $wgTitle->getSubjectPage();
 192                 } else {
 193                         $otherTab = $wgTitle->getTalkPage();
 194                 }
 195                 $lb = new LinkBatch( array(
 196                         $wgUser->getUserPage(),
 197                         $wgUser->getTalkPage(),
 198                         $otherTab
 199                 ));
 200                 $lb->execute();
 201         }
 202
 203         function addMetadataLinks( &$out ) {
 204                 global $wgTitle, $wgEnableDublinCoreRdf, $wgEnableCreativeCommonsRdf;
 205                 global $wgRightsPage, $wgRightsUrl;
 206
 207                 if( $out->isArticleRelated() ) {
 208                         # note: buggy CC software only reads first "meta" link
 209                         if( $wgEnableCreativeCommonsRdf ) {
 210                                 $out->addMetadataLink( array(
 211                                         'title' => 'Creative Commons',
 212                                         'type' => 'application/rdf+xml',
 213                                         'href' => $wgTitle->getLocalURL( 'action=creativecommons') ) );
 214                         }
 215                         if( $wgEnableDublinCoreRdf ) {
 216                                 $out->addMetadataLink( array(
 217                                         'title' => 'Dublin Core',
 218                                         'type' => 'application/rdf+xml',
 219                                         'href' => $wgTitle->getLocalURL( 'action=dublincore' ) ) );
 220                         }
 221                 }
 222                 $copyright = '';
 223                 if( $wgRightsPage ) {
 224                         $copy = Title::newFromText( $wgRightsPage );
 225                         if( $copy ) {
 226                                 $copyright = $copy->getLocalURL();
 227                         }
 228                 }
 229                 if( !$copyright && $wgRightsUrl ) {
 230                         $copyright = $wgRightsUrl;
 231                 }
 232                 if( $copyright ) {
 233                         $out->addLink( array(
 234                                 'rel' => 'copyright',
 235                                 'href' => $copyright ) );
 236                 }
 237         }
 238
 239         function outputPage( &$out ) {
 240                 global $wgDebugComments;
 241
 242                 wfProfileIn( 'Skin::outputPage' );
 243                 $this->initPage( $out );
 244
 245                 $out->out( $out->headElement() );
 246
 247                 $out->out( "\n<body" );
 248                 $ops = $this->getBodyOptions();
 249                 foreach ( $ops as $name => $val ) {
 250                         $out->out( " $name='$val'" );
 251                 }
 252                 $out->out( ">\n" );
 253                 if ( $wgDebugComments ) {
 254                         $out->out( "<!-- Wiki debugging output:\n" .
 255                           $out->mDebugtext . "-->\n" );
 256                 }
 257
 258                 $out->out( $this->beforeContent() );
 259
 260                 $out->out( $out->mBodytext . "\n" );
 261
 262                 $out->out( $this->afterContent() );
 263
 264                 $out->out( $this->bottomScripts() );
 265
 266                 $out->out( $out->reportTime() );
 267
 268                 $out->out( "\n</body></html>" );
 269         }
 270
 271         static function makeVariablesScript( $data ) {
 272                 global $wgJsMimeType;
 273
 274                 $r = "<script type= \"$wgJsMimeType\">/*<![CDATA[*/\n";
 275                 foreach ( $data as $name => $value ) {
 276                         $encValue = Xml::encodeJsVar( $value );
 277                         $r .= "var $name = $encValue;\n";
 278                 }
 279                 $r .= "/*]]>*/</script>\n";
 280
 281                 return $r;
 282         }
 283
 284         /**
 285          * Make a <script> tag containing global variables
 286          * @param array $data Associative array containing one element:
 287          *     skinname => the skin name
 288          * The odd calling convention is for backwards compatibility
 289          */
 290         static function makeGlobalVariablesScript( $data ) {
 291                 global $wgStylePath, $wgUser;
 292                 global $wgArticlePath, $wgScriptPath, $wgServer, $wgContLang, $wgLang;
 293                 global $wgTitle, $wgCanonicalNamespaceNames, $wgOut, $wgArticle;
 294                 global $wgBreakFrames;
 295
 296                 $ns = $wgTitle->getNamespace();
 297                 $nsname = isset( $wgCanonicalNamespaceNames[ $ns ] ) ? $wgCanonicalNamespaceNames[ $ns ] : $wgTitle->getNsText();
 298
 299                 $vars = array(
 300                         'skin' => $data['skinname'],
 301                         'stylepath' => $wgStylePath,
 302                         'wgArticlePath' => $wgArticlePath,
 303                         'wgScriptPath' => $wgScriptPath,
 304                         'wgServer' => $wgServer,
 305                         'wgCanonicalNamespace' => $nsname,
 306                         'wgCanonicalSpecialPageName' => SpecialPage::resolveAlias( $wgTitle->getDBKey() ),
 307                         'wgNamespaceNumber' => $wgTitle->getNamespace(),
 308                         'wgPageName' => $wgTitle->getPrefixedDBKey(),
 309                         'wgTitle' => $wgTitle->getText(),
 310                         'wgArticleId' => $wgTitle->getArticleId(),
 311                         'wgIsArticle' => $wgOut->isArticle(),
 312                         'wgUserName' => $wgUser->isAnon() ? NULL : $wgUser->getName(),
 313                         'wgUserGroups' => $wgUser->isAnon() ? NULL : $wgUser->getGroups(),
 314                         'wgUserLanguage' => $wgLang->getCode(),
 315                         'wgContentLanguage' => $wgContLang->getCode(),
 316                         'wgBreakFrames' => $wgBreakFrames,
 317                         'wgCurRevisionId' => isset( $wgArticle ) ? $wgArticle->getLatest() : 0,
 318                 );
 319
 320                 return self::makeVariablesScript( $vars );
 321         }
 322
 323         function getHeadScripts() {
 324                 global $wgStylePath, $wgUser, $wgAllowUserJs, $wgJsMimeType, $wgStyleVersion;
 325
 326                 $r = self::makeGlobalVariablesScript( array( 'skinname' => $this->getSkinName() ) );
 327
 328                 $r .= "<script type=\"{$wgJsMimeType}\" src=\"{$wgStylePath}/common/wikibits.js?$wgStyleVersion\"></script>\n";
 329                 global $wgUseSiteJs;
 330                 if ($wgUseSiteJs) {
 331                         if ($wgUser->isLoggedIn()) {
 332                                 $r .= "<script type=\"$wgJsMimeType\" src=\"".htmlspecialchars(self::makeUrl('-','action=raw&smaxage=0&gen=js'))."\"><!-- site js --></script>\n";
 333                         } else {
 334                                 $r .= "<script type=\"$wgJsMimeType\" src=\"".htmlspecialchars(self::makeUrl('-','action=raw&gen=js'))."\"><!-- site js --></script>\n";
 335                         }
 336                 }
 337                 if( $wgAllowUserJs && $wgUser->isLoggedIn() ) {
 338                         $userpage = $wgUser->getUserPage();
 339                         $userjs = htmlspecialchars( self::makeUrl(
 340                                 $userpage->getPrefixedText().'/'.$this->getSkinName().'.js',
 341                                 'action=raw&ctype='.$wgJsMimeType));
 342                         $r .= '<script type="'.$wgJsMimeType.'" src="'.$userjs."\"></script>\n";
 343                 }
 344                 return $r;
 345         }
 346
 347         /**
 348          * To make it harder for someone to slip a user a fake
 349          * user-JavaScript or user-CSS preview, a random token
 350          * is associated with the login session. If it's not
 351          * passed back with the preview request, we won't render
 352          * the code.
 353          *
 354          * @param string $action
 355          * @return bool
 356          * @private
 357          */
 358         function userCanPreview( $action ) {
 359                 global $wgTitle, $wgRequest, $wgUser;
 360
 361                 if( $action != 'submit' )
 362                         return false;
 363                 if( !$wgRequest->wasPosted() )
 364                         return false;
 365                 if( !$wgTitle->userCanEditCssJsSubpage() )
 366                         return false;
 367                 return $wgUser->matchEditToken(
 368                         $wgRequest->getVal( 'wpEditToken' ) );
 369         }
 370
 371         # get the user/site-specific stylesheet, SkinTemplate loads via RawPage.php (settings are cached that way)
 372         function getUserStylesheet() {
 373                 global $wgStylePath, $wgRequest, $wgContLang, $wgSquidMaxage, $wgStyleVersion;
 374                 $sheet = $this->getStylesheet();
 375                 $s = "@import \"$wgStylePath/common/common.css?$wgStyleVersion\";\n";
 376                 $s .= "@import \"$wgStylePath/$sheet?$wgStyleVersion\";\n";
 377                 if($wgContLang->isRTL()) $s .= "@import \"$wgStylePath/common/common_rtl.css?$wgStyleVersion\";\n";
 378
 379                 $query = "usemsgcache=yes&action=raw&ctype=text/css&smaxage=$wgSquidMaxage";
 380                 $s .= '@import "' . self::makeNSUrl( 'Common.css', $query, NS_MEDIAWIKI ) . "\";\n" .
 381                         '@import "' . self::makeNSUrl( ucfirst( $this->getSkinName() . '.css' ), $query, NS_MEDIAWIKI ) . "\";\n";
 382
 383                 $s .= $this->doGetUserStyles();
 384                 return $s."\n";
 385         }
 386
 387         /**
 388          * This returns MediaWiki:Common.js.  For some bizarre reason, it does
 389          * *not* return any custom user JS from user subpages.  Huh?
 390          *
 391          * @return string
 392          */
 393         function getUserJs() {
 394                 wfProfileIn( __METHOD__ );
 395
 396                 global $wgStylePath;
 397                 $s = "/* generated javascript */\n";
 398                 $s .= "var skin = '{$this->skinname}';\nvar stylepath = '{$wgStylePath}';";
 399                 $s .= "\n\n/* MediaWiki:Common.js */\n";
 400                 $commonJs = wfMsgForContent('common.js');
 401                 if ( !wfEmptyMsg ( 'common.js', $commonJs ) ) {
 402                         $s .= $commonJs;
 403                 }
 404
 405                 global $wgUseAjax, $wgAjaxWatch;
 406                 if($wgUseAjax && $wgAjaxWatch) {
 407                         $s .= "
 408
 409 /* AJAX (un)watch (see /skins/common/ajaxwatch.js) */
 410 var wgAjaxWatch = {
 411         watchMsg: '".       str_replace( array("'", "\n"), array("\\'", ' '), wfMsgExt( 'watch', array() ) )."',
 412         unwatchMsg: '".     str_replace( array("'", "\n"), array("\\'", ' '), wfMsgExt( 'unwatch', array() ) )."',
 413         watchingMsg: '".    str_replace( array("'", "\n"), array("\\'", ' '), wfMsgExt( 'watching', array() ) )."',
 414         unwatchingMsg: '".  str_replace( array("'", "\n"), array("\\'", ' '), wfMsgExt( 'unwatching', array() ) )."'
 415 };";
 416                 }
 417
 418                 wfProfileOut( __METHOD__ );
 419                 return $s;
 420     }
 421
 422         /**
 423          * Return html code that include User stylesheets
 424          */
 425         function getUserStyles() {
 426                 $s = "<style type='text/css'>\n";
 427                 $s .= "/*/*/ /*<![CDATA[*/\n"; # <-- Hide the styles from Netscape 4 without hiding them from IE/Mac
 428                 $s .= $this->getUserStylesheet();
 429                 $s .= "/*]]>*/ /* */\n";
 430                 $s .= "</style>\n";
 431                 return $s;
 432         }
 433
 434         /**
 435          * Some styles that are set by user through the user settings interface.
 436          */
 437         function doGetUserStyles() {
 438                 global $wgUser, $wgUser, $wgRequest, $wgTitle, $wgAllowUserCss;
 439
 440                 $s = '';
 441
 442                 if( $wgAllowUserCss && $wgUser->isLoggedIn() ) { # logged in
 443                         if($wgTitle->isCssSubpage() && $this->userCanPreview( $wgRequest->getText( 'action' ) ) ) {
 444                                 $s .= $wgRequest->getText('wpTextbox1');
 445                         } else {
 446                                 $userpage = $wgUser->getUserPage();
 447                                 $s.= '@import "'.self::makeUrl(
 448                                         $userpage->getPrefixedText().'/'.$this->getSkinName().'.css',
 449                                         'action=raw&ctype=text/css').'";'."\n";
 450                         }
 451                 }
 452
 453                 return $s . $this->reallyDoGetUserStyles();
 454         }
 455
 456         function reallyDoGetUserStyles() {
 457                 global $wgUser;
 458                 $s = '';
 459                 if (($undopt = $wgUser->getOption("underline")) != 2) {
 460                         $underline = $undopt ? 'underline' : 'none';
 461                         $s .= "a { text-decoration: $underline; }\n";
 462                 }
 463                 if( $wgUser->getOption( 'highlightbroken' ) ) {
 464                         $s .= "a.new, #quickbar a.new { color: #CC2200; }\n";
 465                 } else {
 466                         $s .= <<<END
 467 a.new, #quickbar a.new,
 468 a.stub, #quickbar a.stub {
 469         color: inherit;
 470         text-decoration: inherit;
 471 }
 472 a.new:after, #quickbar a.new:after {
 473         content: "?";
 474         color: #CC2200;
 475         text-decoration: $underline;
 476 }
 477 a.stub:after, #quickbar a.stub:after {
 478         content: "!";
 479         color: #772233;
 480         text-decoration: $underline;
 481 }
 482 END;
 483                 }
 484                 if( $wgUser->getOption( 'justify' ) ) {
 485                         $s .= "#article, #bodyContent { text-align: justify; }\n";
 486                 }
 487                 if( !$wgUser->getOption( 'showtoc' ) ) {
 488                         $s .= "#toc { display: none; }\n";
 489                 }
 490                 if( !$wgUser->getOption( 'editsection' ) ) {
 491                         $s .= ".editsection { display: none; }\n";
 492                 }
 493                 return $s;
 494         }
 495
 496         function getBodyOptions() {
 497                 global $wgUser, $wgTitle, $wgOut, $wgRequest, $wgContLang;
 498
 499                 extract( $wgRequest->getValues( 'oldid', 'redirect', 'diff' ) );
 500
 501                 if ( 0 != $wgTitle->getNamespace() ) {
 502                         $a = array( 'bgcolor' => '#ffffec' );
 503                 }
 504                 else $a = array( 'bgcolor' => '#FFFFFF' );
 505                 if($wgOut->isArticle() && $wgUser->getOption('editondblclick') &&
 506                   $wgTitle->userCan( 'edit' ) ) {
 507                         $s = $wgTitle->getFullURL( $this->editUrlOptions() );
 508                         $s = 'document.location = "' .wfEscapeJSString( $s ) .'";';
 509                         $a += array ('ondblclick' => $s);
 510
 511                 }
 512                 $a['onload'] = $wgOut->getOnloadHandler();
 513                 if( $wgUser->getOption( 'editsectiononrightclick' ) ) {
 514                         if( $a['onload'] != '' ) {
 515                                 $a['onload'] .= ';';
 516                         }
 517                         $a['onload'] .= 'setupRightClickEdit()';
 518                 }
 519                 $a['class'] = 'ns-'.$wgTitle->getNamespace().' '.($wgContLang->isRTL() ? "rtl" : "ltr").
 520                 ' '.Sanitizer::escapeClass( 'page-'.$wgTitle->getPrefixedText() );
 521                 return $a;
 522         }
 523
 524         /**
 525          * URL to the logo
 526          */
 527         function getLogo() {
 528                 global $wgLogo;
 529                 return $wgLogo;
 530         }
 531
 532         /**
 533          * This will be called immediately after the <body> tag.  Split into
 534          * two functions to make it easier to subclass.
 535          */
 536         function beforeContent() {
 537                 return $this->doBeforeContent();
 538         }
 539
 540         function doBeforeContent() {
 541                 global $wgContLang;
 542                 $fname = 'Skin::doBeforeContent';
 543                 wfProfileIn( $fname );
 544
 545                 $s = '';
 546                 $qb = $this->qbSetting();
 547
 548                 if( $langlinks = $this->otherLanguages() ) {
 549                         $rows = 2;
 550                         $borderhack = '';
 551                 } else {
 552                         $rows = 1;
 553                         $langlinks = false;
 554                         $borderhack = 'class="top"';
 555                 }
 556
 557                 $s .= "\n<div id='content'>\n<div id='topbar'>\n" .
 558                   "<table border='0' cellspacing='0' width='98%'>\n<tr>\n";
 559
 560                 $shove = ($qb != 0);
 561                 $left = ($qb == 1 || $qb == 3);
 562                 if($wgContLang->isRTL()) $left = !$left;
 563
 564                 if ( !$shove ) {
 565                         $s .= "<td class='top' align='left' valign='top' rowspan='{$rows}'>\n" .
 566                           $this->logoText() . '</td>';
 567                 } elseif( $left ) {
 568                         $s .= $this->getQuickbarCompensator( $rows );
 569                 }
 570                 $l = $wgContLang->isRTL() ? 'right' : 'left';
 571                 $s .= "<td {$borderhack} align='$l' valign='top'>\n";
 572
 573                 $s .= $this->topLinks() ;
 574                 $s .= "<p class='subtitle'>" . $this->pageTitleLinks() . "</p>\n";
 575
 576                 $r = $wgContLang->isRTL() ? "left" : "right";
 577                 $s .= "</td>\n<td {$borderhack} valign='top' align='$r' nowrap='nowrap'>";
 578                 $s .= $this->nameAndLogin();
 579                 $s .= "\n<br />" . $this->searchForm() . "</td>";
 580
 581                 if ( $langlinks ) {
 582                         $s .= "</tr>\n<tr>\n<td class='top' colspan=\"2\">$langlinks</td>\n";
 583                 }
 584
 585                 if ( $shove && !$left ) { # Right
 586                         $s .= $this->getQuickbarCompensator( $rows );
 587                 }
 588                 $s .= "</tr>\n</table>\n</div>\n";
 589                 $s .= "\n<div id='article'>\n";
 590
 591                 $notice = wfGetSiteNotice();
 592                 if( $notice ) {
 593                         $s .= "\n<div id='siteNotice'>$notice</div>\n";
 594                 }
 595                 $s .= $this->pageTitle();
 596                 $s .= $this->pageSubtitle() ;
 597                 $s .= $this->getCategories();
 598                 wfProfileOut( $fname );
 599                 return $s;
 600         }
 601
 602
 603         function getCategoryLinks () {
 604                 global $wgOut, $wgTitle, $wgUseCategoryBrowser;
 605                 global $wgContLang;
 606
 607                 if( count( $wgOut->mCategoryLinks ) == 0 ) return '';
 608
 609                 # Separator
 610                 $sep = wfMsgHtml( 'catseparator' );
 611
 612                 // Use Unicode bidi embedding override characters,
 613                 // to make sure links don't smash each other up in ugly ways.
 614                 $dir = $wgContLang->isRTL() ? 'rtl' : 'ltr';
 615                 $embed = "<span dir='$dir'>";
 616                 $pop = '</span>';
 617                 $t = $embed . implode ( "{$pop} {$sep} {$embed}" , $wgOut->mCategoryLinks ) . $pop;
 618
 619                 $msg = wfMsgExt( 'pagecategories', array( 'parsemag', 'escape' ), count( $wgOut->mCategoryLinks ) );
 620                 $s = $this->makeLinkObj( Title::newFromText( wfMsgForContent('pagecategorieslink') ), $msg )
 621                         . ': ' . $t;
 622
 623                 # optional 'dmoz-like' category browser. Will be shown under the list
 624                 # of categories an article belong to
 625                 if($wgUseCategoryBrowser) {
 626                         $s .= '<br /><hr />';
 627
 628                         # get a big array of the parents tree
 629                         $parenttree = $wgTitle->getParentCategoryTree();
 630                         # Skin object passed by reference cause it can not be
 631                         # accessed under the method subfunction drawCategoryBrowser
 632                         $tempout = explode("\n", Skin::drawCategoryBrowser($parenttree, $this) );
 633                         # Clean out bogus first entry and sort them
 634                         unset($tempout[0]);
 635                         asort($tempout);
 636                         # Output one per line
 637                         $s .= implode("<br />\n", $tempout);
 638                 }
 639
 640                 return $s;
 641         }
 642
 643         /** Render the array as a serie of links.
 644          * @param $tree Array: categories tree returned by Title::getParentCategoryTree
 645          * @param &skin Object: skin passed by reference
 646          * @return String separated by &gt;, terminate with "\n"
 647          */
 648         function drawCategoryBrowser($tree, &$skin) {
 649                 $return = '';
 650                 foreach ($tree as $element => $parent) {
 651                         if (empty($parent)) {
 652                                 # element start a new list
 653                                 $return .= "\n";
 654                         } else {
 655                                 # grab the others elements
 656                                 $return .= Skin::drawCategoryBrowser($parent, $skin) . ' &gt; ';
 657                         }
 658                         # add our current element to the list
 659                         $eltitle = Title::NewFromText($element);
 660                         $return .=  $skin->makeLinkObj( $eltitle, $eltitle->getText() ) ;
 661                 }
 662                 return $return;
 663         }
 664
 665         function getCategories() {
 666                 $catlinks=$this->getCategoryLinks();
 667                 if(!empty($catlinks)) {
 668                         return "<p class='catlinks'>{$catlinks}</p>";
 669                 }
 670         }
 671
 672         function getQuickbarCompensator( $rows = 1 ) {
 673                 return "<td width='152' rowspan='{$rows}'>&nbsp;</td>";
 674         }
 675
 676         /**
 677          * This gets called shortly before the \</body\> tag.
 678          * @return String HTML to be put before \</body\>
 679          */
 680         function afterContent() {
 681                 $printfooter = "<div class=\"printfooter\">\n" . $this->printFooter() . "</div>\n";
 682                 return $printfooter . $this->doAfterContent();
 683         }
 684
 685         /**
 686          * This gets called shortly before the \</body\> tag.
 687          * @return String HTML-wrapped JS code to be put before \</body\>
 688          */
 689         function bottomScripts() {
 690                 global $wgJsMimeType;
 691                 return "\n\t\t<script type=\"$wgJsMimeType\">if (window.runOnloadHook) runOnloadHook();</script>\n";
 692         }
 693
 694         /** @return string Retrievied from HTML text */
 695         function printSource() {
 696                 global $wgTitle;
 697                 $url = htmlspecialchars( $wgTitle->getFullURL() );
 698                 return wfMsg( 'retrievedfrom', '<a href="'.$url.'">'.$url.'</a>' );
 699         }
 700
 701         function printFooter() {
 702                 return "<p>" .  $this->printSource() .
 703                         "</p>\n\n<p>" . $this->pageStats() . "</p>\n";
 704         }
 705
 706         /** overloaded by derived classes */
 707         function doAfterContent() { }
 708
 709         function pageTitleLinks() {
 710                 global $wgOut, $wgTitle, $wgUser, $wgRequest;
 711
 712                 $oldid = $wgRequest->getVal( 'oldid' );
 713                 $diff = $wgRequest->getVal( 'diff' );
 714                 $action = $wgRequest->getText( 'action' );
 715
 716                 $s = $this->printableLink();
 717                 $disclaimer = $this->disclaimerLink(); # may be empty
 718                 if( $disclaimer ) {
 719                         $s .= ' | ' . $disclaimer;
 720                 }
 721                 $privacy = $this->privacyLink(); # may be empty too
 722                 if( $privacy ) {
 723                         $s .= ' | ' . $privacy;
 724                 }
 725
 726                 if ( $wgOut->isArticleRelated() ) {
 727                         if ( $wgTitle->getNamespace() == NS_IMAGE ) {
 728                                 $name = $wgTitle->getDBkey();
 729                                 $image = new Image( $wgTitle );
 730                                 if( $image->exists() ) {
 731                                         $link = htmlspecialchars( $image->getURL() );
 732                                         $style = $this->getInternalLinkAttributes( $link, $name );
 733                                         $s .= " | <a href=\"{$link}\"{$style}>{$name}</a>";
 734                                 }
 735                         }
 736                 }
 737                 if ( 'history' == $action || isset( $diff ) || isset( $oldid ) ) {
 738                         $s .= ' | ' . $this->makeKnownLinkObj( $wgTitle,
 739                                         wfMsg( 'currentrev' ) );
 740                 }
 741
 742                 if ( $wgUser->getNewtalk() ) {
 743                         # do not show "You have new messages" text when we are viewing our
 744                         # own talk page
 745                         if( !$wgTitle->equals( $wgUser->getTalkPage() ) ) {
 746                                 $tl = $this->makeKnownLinkObj( $wgUser->getTalkPage(), wfMsgHtml( 'newmessageslink' ), 'redirect=no' );
 747                                 $dl = $this->makeKnownLinkObj( $wgUser->getTalkPage(), wfMsgHtml( 'newmessagesdifflink' ), 'diff=cur' );
 748                                 $s.= ' | <strong>'. wfMsg( 'youhavenewmessages', $tl, $dl ) . '</strong>';
 749                                 # disable caching
 750                                 $wgOut->setSquidMaxage(0);
 751                                 $wgOut->enableClientCache(false);
 752                         }
 753                 }
 754
 755                 $undelete = $this->getUndeleteLink();
 756                 if( !empty( $undelete ) ) {
 757                         $s .= ' | '.$undelete;
 758                 }
 759                 return $s;
 760         }
 761
 762         function getUndeleteLink() {
 763                 global $wgUser, $wgTitle, $wgContLang, $action;
 764                 if(     $wgUser->isAllowed( 'deletedhistory' ) &&
 765                         (($wgTitle->getArticleId() == 0) || ($action == "history")) &&
 766                         ($n = $wgTitle->isDeleted() ) )
 767                 {
 768                         if ( $wgUser->isAllowed( 'delete' ) ) {
 769                                 $msg = 'thisisdeleted';
 770                         } else {
 771                                 $msg = 'viewdeleted';
 772                         }
 773                         return wfMsg( $msg,
 774                                 $this->makeKnownLinkObj(
 775                                         SpecialPage::getTitleFor( 'Undelete', $wgTitle->getPrefixedDBkey() ),
 776                                         wfMsgExt( 'restorelink', array( 'parsemag', 'escape' ), $n ) ) );
 777                 }
 778                 return '';
 779         }
 780
 781         function printableLink() {
 782                 global $wgOut, $wgFeedClasses, $wgRequest;
 783
 784                 $printurl = $wgRequest->escapeAppendQuery( 'printable=yes' );
 785
 786                 $s = "<a href=\"$printurl\">" . wfMsg( 'printableversion' ) . '</a>';
 787                 if( $wgOut->isSyndicated() ) {
 788                         foreach( $wgFeedClasses as $format => $class ) {
 789                                 $feedurl = $wgRequest->escapeAppendQuery( "feed=$format" );
 790                                 $s .= " | <a href=\"$feedurl\">{$format}</a>";
 791                         }
 792                 }
 793                 return $s;
 794         }
 795
 796         function pageTitle() {
 797                 global $wgOut;
 798                 $s = '<h1 class="pagetitle">' . htmlspecialchars( $wgOut->getPageTitle() ) . '</h1>';
 799                 return $s;
 800         }
 801
 802         function pageSubtitle() {
 803                 global $wgOut;
 804
 805                 $sub = $wgOut->getSubtitle();
 806                 if ( '' == $sub ) {
 807                         global $wgExtraSubtitle;
 808                         $sub = wfMsg( 'tagline' ) . $wgExtraSubtitle;
 809                 }
 810                 $subpages = $this->subPageSubtitle();
 811                 $sub .= !empty($subpages)?"</p><p class='subpages'>$subpages":'';
 812                 $s = "<p class='subtitle'>{$sub}</p>\n";
 813                 return $s;
 814         }
 815
 816         function subPageSubtitle() {
 817                 global $wgOut,$wgTitle,$wgNamespacesWithSubpages;
 818                 $subpages = '';
 819                 if($wgOut->isArticle() && !empty($wgNamespacesWithSubpages[$wgTitle->getNamespace()])) {
 820                         $ptext=$wgTitle->getPrefixedText();
 821                         if(preg_match('/\//',$ptext)) {
 822                                 $links = explode('/',$ptext);
 823                                 $c = 0;
 824                                 $growinglink = '';
 825                                 foreach($links as $link) {
 826                                         $c++;
 827                                         if ($c<count($links)) {
 828                                                 $growinglink .= $link;
 829                                                 $getlink = $this->makeLink( $growinglink, htmlspecialchars( $link ) );
 830                                                 if(preg_match('/class="new"/i',$getlink)) { break; } # this is a hack, but it saves time
 831                                                 if ($c>1) {
 832                                                         $subpages .= ' | ';
 833                                                 } else  {
 834                                                         $subpages .= '&lt; ';
 835                                                 }
 836                                                 $subpages .= $getlink;
 837                                                 $growinglink .= '/';
 838                                         }
 839                                 }
 840                         }
 841                 }
 842                 return $subpages;
 843         }
 844
 845         function nameAndLogin() {
 846                 global $wgUser, $wgTitle, $wgLang, $wgContLang, $wgShowIPinHeader;
 847
 848                 $lo = $wgContLang->specialPage( 'Userlogout' );
 849
 850                 $s = '';
 851                 if ( $wgUser->isAnon() ) {
 852                         if( $wgShowIPinHeader && isset( $_COOKIE[ini_get('session.name')] ) ) {
 853                                 $n = wfGetIP();
 854
 855                                 $tl = $this->makeKnownLinkObj( $wgUser->getTalkPage(),
 856                                   $wgLang->getNsText( NS_TALK ) );
 857
 858                                 $s .= $n . ' ('.$tl.')';
 859                         } else {
 860                                 $s .= wfMsg('notloggedin');
 861                         }
 862
 863                         $rt = $wgTitle->getPrefixedURL();
 864                         if ( 0 == strcasecmp( urlencode( $lo ), $rt ) ) {
 865                                 $q = '';
 866                         } else { $q = "returnto={$rt}"; }
 867
 868                         $s .= "\n<br />" . $this->makeKnownLinkObj(
 869                                 SpecialPage::getTitleFor( 'Userlogin' ),
 870                                 wfMsg( 'login' ), $q );
 871                 } else {
 872                         $n = $wgUser->getName();
 873                         $rt = $wgTitle->getPrefixedURL();
 874                         $tl = $this->makeKnownLinkObj( $wgUser->getTalkPage(),
 875                           $wgLang->getNsText( NS_TALK ) );
 876
 877                         $tl = " ({$tl})";
 878
 879                         $s .= $this->makeKnownLinkObj( $wgUser->getUserPage(),
 880                           $n ) . "{$tl}<br />" .
 881                           $this->makeKnownLinkObj( SpecialPage::getTitleFor( 'Userlogout' ), wfMsg( 'logout' ),
 882                           "returnto={$rt}" ) . ' | ' .
 883                           $this->specialLink( 'preferences' );
 884                 }
 885                 $s .= ' | ' . $this->makeKnownLink( wfMsgForContent( 'helppage' ),
 886                   wfMsg( 'help' ) );
 887
 888                 return $s;
 889         }
 890
 891         function getSearchLink() {
 892                 $searchPage = SpecialPage::getTitleFor( 'Search' );
 893                 return $searchPage->getLocalURL();
 894         }
 895
 896         function escapeSearchLink() {
 897                 return htmlspecialchars( $this->getSearchLink() );
 898         }
 899
 900         function searchForm() {
 901                 global $wgRequest;
 902                 $search = $wgRequest->getText( 'search' );
 903
 904                 $s = '<form name="search" class="inline" method="post" action="'
 905                   . $this->escapeSearchLink() . "\">\n"
 906                   . '<input type="text" name="search" size="19" value="'
 907                   . htmlspecialchars(substr($search,0,256)) . "\" />\n"
 908                   . '<input type="submit" name="go" value="' . wfMsg ('searcharticle') . '" />&nbsp;'
 909                   . '<input type="submit" name="fulltext" value="' . wfMsg ('searchbutton') . "\" />\n</form>";
 910
 911                 return $s;
 912         }
 913
 914         function topLinks() {
 915                 global $wgOut;
 916                 $sep = " |\n";
 917
 918                 $s = $this->mainPageLink() . $sep
 919                   . $this->specialLink( 'recentchanges' );
 920
 921                 if ( $wgOut->isArticleRelated() ) {
 922                         $s .=  $sep . $this->editThisPage()
 923                           . $sep . $this->historyLink();
 924                 }
 925                 # Many people don't like this dropdown box
 926                 #$s .= $sep . $this->specialPagesList();
 927
 928                 $s .= $this->variantLinks();
 929
 930                 $s .= $this->extensionTabLinks();
 931
 932                 return $s;
 933         }
 934
 935         /**
 936          * Compatibility for extensions adding functionality through tabs.
 937          * Eventually these old skins should be replaced with SkinTemplate-based
 938          * versions, sigh...
 939          * @return string
 940          */
 941         function extensionTabLinks() {
 942                 $tabs = array();
 943                 $s = '';
 944                 wfRunHooks( 'SkinTemplateTabs', array( $this, &$tabs ) );
 945                 foreach( $tabs as $tab ) {
 946                         $s .= ' | ' . Xml::element( 'a',
 947                                 array( 'href' => $tab['href'] ),
 948                                 $tab['text'] );
 949                 }
 950                 return $s;
 951         }
 952
 953         /**
 954          * Language/charset variant links for classic-style skins
 955          * @return string
 956          */
 957         function variantLinks() {
 958                 $s = '';
 959                 /* show links to different language variants */
 960                 global $wgDisableLangConversion, $wgContLang, $wgTitle;
 961                 $variants = $wgContLang->getVariants();
 962                 if( !$wgDisableLangConversion && sizeof( $variants ) > 1 ) {
 963                         foreach( $variants as $code ) {
 964                                 $varname = $wgContLang->getVariantname( $code );
 965                                 if( $varname == 'disable' )
 966                                         continue;
 967                                 $s .= ' | <a href="' . $wgTitle->escapeLocalUrl( 'variant=' . $code ) . '">' . htmlspecialchars( $varname ) . '</a>';
 968                         }
 969                 }
 970                 return $s;
 971         }
 972
 973         function bottomLinks() {
 974                 global $wgOut, $wgUser, $wgTitle, $wgUseTrackbacks;
 975                 $sep = " |\n";
 976
 977                 $s = '';
 978                 if ( $wgOut->isArticleRelated() ) {
 979                         $s .= '<strong>' . $this->editThisPage() . '</strong>';
 980                         if ( $wgUser->isLoggedIn() ) {
 981                                 $s .= $sep . $this->watchThisPage();
 982                         }
 983                         $s .= $sep . $this->talkLink()
 984                           . $sep . $this->historyLink()
 985                           . $sep . $this->whatLinksHere()
 986                           . $sep . $this->watchPageLinksLink();
 987
 988                         if ($wgUseTrackbacks)
 989                                 $s .= $sep . $this->trackbackLink();
 990
 991                         if ( $wgTitle->getNamespace() == NS_USER
 992                             || $wgTitle->getNamespace() == NS_USER_TALK )
 993
 994                         {
 995                                 $id=User::idFromName($wgTitle->getText());
 996                                 $ip=User::isIP($wgTitle->getText());
 997
 998                                 if($id || $ip) { # both anons and non-anons have contri list
 999                                         $s .= $sep . $this->userContribsLink();
1000                                 }
1001                                 if( $this->showEmailUser( $id ) ) {
1002                                         $s .= $sep . $this->emailUserLink();
1003                                 }
1004                         }
1005                         if ( $wgTitle->getArticleId() ) {
1006                                 $s .= "\n<br />";
1007                                 if($wgUser->isAllowed('delete')) { $s .= $this->deleteThisPage(); }
1008                                 if($wgUser->isAllowed('protect')) { $s .= $sep . $this->protectThisPage(); }
1009                                 if($wgUser->isAllowed('move')) { $s .= $sep . $this->moveThisPage(); }
1010                         }
1011                         $s .= "<br />\n" . $this->otherLanguages();
1012                 }
1013                 return $s;
1014         }
1015
1016         function pageStats() {
1017                 global $wgOut, $wgLang, $wgArticle, $wgRequest, $wgUser;
1018                 global $wgDisableCounters, $wgMaxCredits, $wgShowCreditsIfMax, $wgTitle, $wgPageShowWatchingUsers;
1019
1020                 $oldid = $wgRequest->getVal( 'oldid' );
1021                 $diff = $wgRequest->getVal( 'diff' );
1022                 if ( ! $wgOut->isArticle() ) { return ''; }
1023                 if ( isset( $oldid ) || isset( $diff ) ) { return ''; }
1024                 if ( 0 == $wgArticle->getID() ) { return ''; }
1025
1026                 $s = '';
1027                 if ( !$wgDisableCounters ) {
1028                         $count = $wgLang->formatNum( $wgArticle->getCount() );
1029                         if ( $count ) {
1030                                 $s = wfMsgExt( 'viewcount', array( 'parseinline' ), $count );
1031                         }
1032                 }
1033
1034                 if (isset($wgMaxCredits) && $wgMaxCredits != 0) {
1035                     require_once('Credits.php');
1036                     $s .= ' ' . getCredits($wgArticle, $wgMaxCredits, $wgShowCreditsIfMax);
1037                 } else {
1038                     $s .= $this->lastModified();
1039                 }
1040
1041                 if ($wgPageShowWatchingUsers && $wgUser->getOption( 'shownumberswatching' )) {
1042                         $dbr =& wfGetDB( DB_SLAVE );
1043                         $watchlist = $dbr->tableName( 'watchlist' );
1044                         $sql = "SELECT COUNT(*) AS n FROM $watchlist
1045                                 WHERE wl_title='" . $dbr->strencode($wgTitle->getDBKey()) .
1046                                 "' AND  wl_namespace=" . $wgTitle->getNamespace() ;
1047                         $res = $dbr->query( $sql, 'Skin::pageStats');
1048                         $x = $dbr->fetchObject( $res );
1049                         $s .= ' ' . wfMsg('number_of_watching_users_pageview', $x->n );
1050                 }
1051
1052                 return $s . ' ' .  $this->getCopyright();
1053         }
1054
1055         function getCopyright( $type = 'detect' ) {
1056                 global $wgRightsPage, $wgRightsUrl, $wgRightsText, $wgRequest;
1057
1058                 if ( $type == 'detect' ) {
1059                         $oldid = $wgRequest->getVal( 'oldid' );
1060                         $diff = $wgRequest->getVal( 'diff' );
1061
1062                         if ( !is_null( $oldid ) && is_null( $diff ) && wfMsgForContent( 'history_copyright' ) !== '-' ) {
1063                                 $type = 'history';
1064                         } else {
1065                                 $type = 'normal';
1066                         }
1067                 }
1068
1069                 if ( $type == 'history' ) {
1070                         $msg = 'history_copyright';
1071                 } else {
1072                         $msg = 'copyright';
1073                 }
1074
1075                 $out = '';
1076                 if( $wgRightsPage ) {
1077                         $link = $this->makeKnownLink( $wgRightsPage, $wgRightsText );
1078                 } elseif( $wgRightsUrl ) {
1079                         $link = $this->makeExternalLink( $wgRightsUrl, $wgRightsText );
1080                 } else {
1081                         # Give up now
1082                         return $out;
1083                 }
1084                 $out .= wfMsgForContent( $msg, $link );
1085                 return $out;
1086         }
1087
1088         function getCopyrightIcon() {
1089                 global $wgRightsUrl, $wgRightsText, $wgRightsIcon, $wgCopyrightIcon;
1090                 $out = '';
1091                 if ( isset( $wgCopyrightIcon ) && $wgCopyrightIcon ) {
1092                         $out = $wgCopyrightIcon;
1093                 } else if ( $wgRightsIcon ) {
1094                         $icon = htmlspecialchars( $wgRightsIcon );
1095                         if ( $wgRightsUrl ) {
1096                                 $url = htmlspecialchars( $wgRightsUrl );
1097                                 $out .= '<a href="'.$url.'">';
1098                         }
1099                         $text = htmlspecialchars( $wgRightsText );
1100                         $out .= "<img src=\"$icon\" alt='$text' />";
1101                         if ( $wgRightsUrl ) {
1102                                 $out .= '</a>';
1103                         }
1104                 }
1105                 return $out;
1106         }
1107
1108         function getPoweredBy() {
1109                 global $wgStylePath;
1110                 $url = htmlspecialchars( "$wgStylePath/common/images/poweredby_mediawiki_88x31.png" );
1111                 $img = '<a href="http://www.mediawiki.org/"><img src="'.$url.'" alt="Powered by MediaWiki" /></a>';
1112                 return $img;
1113         }
1114
1115         function lastModified() {
1116                 global $wgLang, $wgArticle, $wgLoadBalancer;
1117
1118                 $timestamp = $wgArticle->getTimestamp();
1119                 if ( $timestamp ) {
1120                         $d = $wgLang->date( $timestamp, true );
1121                         $t = $wgLang->time( $timestamp, true );
1122                         $s = ' ' . wfMsg( 'lastmodifiedat', $d, $t );
1123                 } else {
1124                         $s = '';
1125                 }
1126                 if ( $wgLoadBalancer->getLaggedSlaveMode() ) {
1127                         $s .= ' <strong>' . wfMsg( 'laggedslavemode' ) . '</strong>';
1128                 }
1129                 return $s;
1130         }
1131
1132         function logoText( $align = '' ) {
1133                 if ( '' != $align ) { $a = " align='{$align}'"; }
1134                 else { $a = ''; }
1135
1136                 $mp = wfMsg( 'mainpage' );
1137                 $mptitle = Title::newMainPage();
1138                 $url = ( is_object($mptitle) ? $mptitle->escapeLocalURL() : '' );
1139
1140                 $logourl = $this->getLogo();
1141                 $s = "<a href='{$url}'><img{$a} src='{$logourl}' alt='[{$mp}]' /></a>";
1142                 return $s;
1143         }
1144
1145         /**
1146          * show a drop-down box of special pages
1147          */
1148         function specialPagesList() {
1149                 global $wgUser, $wgContLang, $wgServer, $wgRedirectScript;
1150                 $pages = array_merge( SpecialPage::getRegularPages(), SpecialPage::getRestrictedPages() );
1151                 foreach ( $pages as $name => $page ) {
1152                         $pages[$name] = $page->getDescription();
1153                 }
1154
1155                 $go = wfMsg( 'go' );
1156                 $sp = wfMsg( 'specialpages' );
1157                 $spp = $wgContLang->specialPage( 'Specialpages' );
1158
1159                 $s = '<form id="specialpages" method="get" class="inline" ' .
1160                   'action="' . htmlspecialchars( "{$wgServer}{$wgRedirectScript}" ) . "\">\n";
1161                 $s .= "<select name=\"wpDropdown\">\n";
1162                 $s .= "<option value=\"{$spp}\">{$sp}</option>\n";
1163
1164
1165                 foreach ( $pages as $name => $desc ) {
1166                         $p = $wgContLang->specialPage( $name );
1167                         $s .= "<option value=\"{$p}\">{$desc}</option>\n";
1168                 }
1169                 $s .= "</select>\n";
1170                 $s .= "<input type='submit' value=\"{$go}\" name='redirect' />\n";
1171                 $s .= "</form>\n";
1172                 return $s;
1173         }
1174
1175         function mainPageLink() {
1176                 $s = $this->makeKnownLinkObj( Title::newMainPage(), wfMsg( 'mainpage' ) );
1177                 return $s;
1178         }
1179
1180         function copyrightLink() {
1181                 $s = $this->makeKnownLink( wfMsgForContent( 'copyrightpage' ),
1182                   wfMsg( 'copyrightpagename' ) );
1183                 return $s;
1184         }
1185
1186         function privacyLink() {
1187                 $privacy = wfMsg( 'privacy' );
1188                 if ($privacy == '-') {
1189                         return '';
1190                 } else {
1191                         return $this->makeKnownLink( wfMsgForContent( 'privacypage' ), $privacy);
1192                 }
1193         }
1194
1195         function aboutLink() {
1196                 $s = $this->makeKnownLink( wfMsgForContent( 'aboutpage' ),
1197                   wfMsg( 'aboutsite' ) );
1198                 return $s;
1199         }
1200
1201         function disclaimerLink() {
1202                 $disclaimers = wfMsg( 'disclaimers' );
1203                 if ($disclaimers == '-') {
1204                         return '';
1205                 } else {
1206                         return $this->makeKnownLink( wfMsgForContent( 'disclaimerpage' ),
1207                                                      $disclaimers );
1208                 }
1209         }
1210
1211         function editThisPage() {
1212                 global $wgOut, $wgTitle;
1213
1214                 if ( ! $wgOut->isArticleRelated() ) {
1215                         $s = wfMsg( 'protectedpage' );
1216                 } else {
1217                         if ( $wgTitle->userCan( 'edit' ) ) {
1218                                 $t = wfMsg( 'editthispage' );
1219                         } else {
1220                                 $t = wfMsg( 'viewsource' );
1221                         }
1222
1223                         $s = $this->makeKnownLinkObj( $wgTitle, $t, $this->editUrlOptions() );
1224                 }
1225                 return $s;
1226         }
1227
1228         /**
1229          * Return URL options for the 'edit page' link.
1230          * This may include an 'oldid' specifier, if the current page view is such.
1231          *
1232          * @return string
1233          * @private
1234          */
1235         function editUrlOptions() {
1236                 global $wgArticle;
1237
1238                 if( $this->mRevisionId && ! $wgArticle->isCurrent() ) {
1239                         return "action=edit&oldid=" . intval( $this->mRevisionId );
1240                 } else {
1241                         return "action=edit";
1242                 }
1243         }
1244
1245         function deleteThisPage() {
1246                 global $wgUser, $wgTitle, $wgRequest;
1247
1248                 $diff = $wgRequest->getVal( 'diff' );
1249                 if ( $wgTitle->getArticleId() && ( ! $diff ) && $wgUser->isAllowed('delete') ) {
1250                         $t = wfMsg( 'deletethispage' );
1251
1252                         $s = $this->makeKnownLinkObj( $wgTitle, $t, 'action=delete' );
1253                 } else {
1254                         $s = '';
1255                 }
1256                 return $s;
1257         }
1258
1259         function protectThisPage() {
1260                 global $wgUser, $wgTitle, $wgRequest;
1261
1262                 $diff = $wgRequest->getVal( 'diff' );
1263                 if ( $wgTitle->getArticleId() && ( ! $diff ) && $wgUser->isAllowed('protect') ) {
1264                         if ( $wgTitle->isProtected() ) {
1265                                 $t = wfMsg( 'unprotectthispage' );
1266                                 $q = 'action=unprotect';
1267                         } else {
1268                                 $t = wfMsg( 'protectthispage' );
1269                                 $q = 'action=protect';
1270                         }
1271                         $s = $this->makeKnownLinkObj( $wgTitle, $t, $q );
1272                 } else {
1273                         $s = '';
1274                 }
1275                 return $s;
1276         }
1277
1278         function watchThisPage() {
1279                 global $wgOut, $wgTitle;
1280                 ++$this->mWatchLinkNum;
1281
1282                 if ( $wgOut->isArticleRelated() ) {
1283                         if ( $wgTitle->userIsWatching() ) {
1284                                 $t = wfMsg( 'unwatchthispage' );
1285                                 $q = 'action=unwatch';
1286                                 $id = "mw-unwatch-link".$this->mWatchLinkNum;
1287                         } else {
1288                                 $t = wfMsg( 'watchthispage' );
1289                                 $q = 'action=watch';
1290                                 $id = 'mw-watch-link'.$this->mWatchLinkNum;
1291                         }
1292                         $s = $this->makeKnownLinkObj( $wgTitle, $t, $q, '', '', " id=\"$id\"" );
1293                 } else {
1294                         $s = wfMsg( 'notanarticle' );
1295                 }
1296                 return $s;
1297         }
1298
1299         function moveThisPage() {
1300                 global $wgTitle;
1301
1302                 if ( $wgTitle->userCan( 'move' ) ) {
1303                         return $this->makeKnownLinkObj( SpecialPage::getTitleFor( 'Movepage' ),
1304                           wfMsg( 'movethispage' ), 'target=' . $wgTitle->getPrefixedURL() );
1305                 } else {
1306                         // no message if page is protected - would be redundant
1307                         return '';
1308                 }
1309         }
1310
1311         function historyLink() {
1312                 global $wgTitle;
1313
1314                 return $this->makeKnownLinkObj( $wgTitle,
1315                   wfMsg( 'history' ), 'action=history' );
1316         }
1317
1318         function whatLinksHere() {
1319                 global $wgTitle;
1320
1321                 return $this->makeKnownLinkObj(
1322                         SpecialPage::getTitleFor( 'Whatlinkshere', $wgTitle->getPrefixedDBkey() ),
1323                         wfMsg( 'whatlinkshere' ) );
1324         }
1325
1326         function userContribsLink() {
1327                 global $wgTitle;
1328
1329                 return $this->makeKnownLinkObj(
1330                         SpecialPage::getTitleFor( 'Contributions', $wgTitle->getDBkey() ),
1331                         wfMsg( 'contributions' ) );
1332         }
1333
1334         function showEmailUser( $id ) {
1335                 global $wgEnableEmail, $wgEnableUserEmail, $wgUser;
1336                 return $wgEnableEmail &&
1337                        $wgEnableUserEmail &&
1338                        $wgUser->isLoggedIn() && # show only to signed in users
1339                        0 != $id; # we can only email to non-anons ..
1340 #                      '' != $id->getEmail() && # who must have an email address stored ..
1341 #                      0 != $id->getEmailauthenticationtimestamp() && # .. which is authenticated
1342 #                      1 != $wgUser->getOption('disablemail'); # and not disabled
1343         }
1344
1345         function emailUserLink() {
1346                 global $wgTitle;
1347
1348                 return $this->makeKnownLinkObj(
1349                         SpecialPage::getTitleFor( 'Emailuser', $wgTitle->getDBkey() ),
1350                         wfMsg( 'emailuser' ) );
1351         }
1352
1353         function watchPageLinksLink() {
1354                 global $wgOut, $wgTitle;
1355
1356                 if ( ! $wgOut->isArticleRelated() ) {
1357                         return '(' . wfMsg( 'notanarticle' ) . ')';
1358                 } else {
1359                         return $this->makeKnownLinkObj(
1360                                 SpecialPage::getTitleFor( 'Recentchangeslinked', $wgTitle->getPrefixedDBkey() ),
1361                                 wfMsg( 'recentchangeslinked' ) );
1362                 }
1363         }
1364
1365         function trackbackLink() {
1366                 global $wgTitle;
1367
1368                 return "<a href=\"" . $wgTitle->trackbackURL() . "\">"
1369                         . wfMsg('trackbacklink') . "</a>";
1370         }
1371
1372         function otherLanguages() {
1373                 global $wgOut, $wgContLang, $wgHideInterlanguageLinks;
1374
1375                 if ( $wgHideInterlanguageLinks ) {
1376                         return '';
1377                 }
1378
1379                 $a = $wgOut->getLanguageLinks();
1380                 if ( 0 == count( $a ) ) {
1381                         return '';
1382                 }
1383
1384                 $s = wfMsg( 'otherlanguages' ) . ': ';
1385                 $first = true;
1386                 if($wgContLang->isRTL()) $s .= '<span dir="LTR">';
1387                 foreach( $a as $l ) {
1388                         if ( ! $first ) { $s .= ' | '; }
1389                         $first = false;
1390
1391                         $nt = Title::newFromText( $l );
1392                         $url = $nt->escapeFullURL();
1393                         $text = $wgContLang->getLanguageName( $nt->getInterwiki() );
1394
1395                         if ( '' == $text ) { $text = $l; }
1396                         $style = $this->getExternalLinkAttributes( $l, $text );
1397                         $s .= "<a href=\"{$url}\"{$style}>{$text}</a>";
1398                 }
1399                 if($wgContLang->isRTL()) $s .= '</span>';
1400                 return $s;
1401         }
1402
1403         function bugReportsLink() {
1404                 $s = $this->makeKnownLink( wfMsgForContent( 'bugreportspage' ),
1405                   wfMsg( 'bugreports' ) );
1406                 return $s;
1407         }
1408
1409         function dateLink() {
1410                 $t1 = Title::newFromText( gmdate( 'F j' ) );
1411                 $t2 = Title::newFromText( gmdate( 'Y' ) );
1412
1413                 $id = $t1->getArticleID();
1414
1415                 if ( 0 == $id ) {
1416                         $s = $this->makeBrokenLink( $t1->getText() );
1417                 } else {
1418                         $s = $this->makeKnownLink( $t1->getText() );
1419                 }
1420                 $s .= ', ';
1421
1422                 $id = $t2->getArticleID();
1423
1424                 if ( 0 == $id ) {
1425                         $s .= $this->makeBrokenLink( $t2->getText() );
1426                 } else {
1427                         $s .= $this->makeKnownLink( $t2->getText() );
1428                 }
1429                 return $s;
1430         }
1431
1432         function talkLink() {
1433                 global $wgTitle;
1434
1435                 if ( NS_SPECIAL == $wgTitle->getNamespace() ) {
1436                         # No discussion links for special pages
1437                         return '';
1438                 }
1439
1440                 if( $wgTitle->isTalkPage() ) {
1441                         $link = $wgTitle->getSubjectPage();
1442                         switch( $link->getNamespace() ) {
1443                                 case NS_MAIN:
1444                                         $text = wfMsg( 'articlepage' );
1445                                         break;
1446                                 case NS_USER:
1447                                         $text = wfMsg( 'userpage' );
1448                                         break;
1449                                 case NS_PROJECT:
1450                                         $text = wfMsg( 'projectpage' );
1451                                         break;
1452                                 case NS_IMAGE:
1453                                         $text = wfMsg( 'imagepage' );
1454                                         break;
1455                                 case NS_MEDIAWIKI:
1456                                         $text = wfMsg( 'mediawikipage' );
1457                                         break;
1458                                 case NS_TEMPLATE:
1459                                         $text = wfMsg( 'templatepage' );
1460                                         break;
1461                                 case NS_HELP:
1462                                         $text = wfMsg( 'viewhelppage' );
1463                                         break;
1464                                 case NS_CATEGORY:
1465                                         $text = wfMsg( 'categorypage' );
1466                                         break;
1467                                 default:
1468                                         $text = wfMsg( 'articlepage' );
1469                         }
1470                 } else {
1471                         $link = $wgTitle->getTalkPage();
1472                         $text = wfMsg( 'talkpage' );
1473                 }
1474
1475                 $s = $this->makeLinkObj( $link, $text );
1476
1477                 return $s;
1478         }
1479
1480         function commentLink() {
1481                 global $wgTitle, $wgOut;
1482
1483                 if ( $wgTitle->getNamespace() == NS_SPECIAL ) {
1484                         return '';
1485                 }
1486
1487                 # __NEWSECTIONLINK___ changes behaviour here
1488                 # If it's present, the link points to this page, otherwise
1489                 # it points to the talk page
1490                 if( $wgTitle->isTalkPage() ) {
1491                         $title =& $wgTitle;
1492                 } elseif( $wgOut->showNewSectionLink() ) {
1493                         $title =& $wgTitle;
1494                 } else {
1495                         $title =& $wgTitle->getTalkPage();
1496                 }
1497
1498                 return $this->makeKnownLinkObj( $title, wfMsg( 'postcomment' ), 'action=edit&section=new' );
1499         }
1500
1501         /* these are used extensively in SkinTemplate, but also some other places */
1502         static function makeMainPageUrl( $urlaction = '' ) {
1503                 $title = Title::newMainPage();
1504                 self::checkTitle( $title, '' );
1505                 return $title->getLocalURL( $urlaction );
1506         }
1507
1508         static function makeSpecialUrl( $name, $urlaction = '' ) {
1509                 $title = SpecialPage::getTitleFor( $name );
1510                 return $title->getLocalURL( $urlaction );
1511         }
1512
1513         static function makeSpecialUrlSubpage( $name, $subpage, $urlaction = '' ) {
1514                 $title = SpecialPage::getSafeTitleFor( $name, $subpage );
1515                 return $title->getLocalURL( $urlaction );
1516         }
1517
1518         static function makeI18nUrl( $name, $urlaction = '' ) {
1519                 $title = Title::newFromText( wfMsgForContent( $name ) );
1520                 self::checkTitle( $title, $name );
1521                 return $title->getLocalURL( $urlaction );
1522         }
1523
1524         static function makeUrl( $name, $urlaction = '' ) {
1525                 $title = Title::newFromText( $name );
1526                 self::checkTitle( $title, $name );
1527                 return $title->getLocalURL( $urlaction );
1528         }
1529
1530         # If url string starts with http, consider as external URL, else
1531         # internal
1532         static function makeInternalOrExternalUrl( $name ) {
1533                 if ( preg_match( '/^(?:' . wfUrlProtocols() . ')/', $name ) ) {
1534                         return $name;
1535                 } else {
1536                         return self::makeUrl( $name );
1537                 }
1538         }
1539
1540         # this can be passed the NS number as defined in Language.php
1541         static function makeNSUrl( $name, $urlaction = '', $namespace = NS_MAIN ) {
1542                 $title = Title::makeTitleSafe( $namespace, $name );
1543                 self::checkTitle( $title, $name );
1544                 return $title->getLocalURL( $urlaction );
1545         }
1546
1547         /* these return an array with the 'href' and boolean 'exists' */
1548         static function makeUrlDetails( $name, $urlaction = '' ) {
1549                 $title = Title::newFromText( $name );
1550                 self::checkTitle( $title, $name );
1551                 return array(
1552                         'href' => $title->getLocalURL( $urlaction ),
1553                         'exists' => $title->getArticleID() != 0 ? true : false
1554                 );
1555         }
1556
1557         /**
1558          * Make URL details where the article exists (or at least it's convenient to think so)
1559          */
1560         static function makeKnownUrlDetails( $name, $urlaction = '' ) {
1561                 $title = Title::newFromText( $name );
1562                 self::checkTitle( $title, $name );
1563                 return array(
1564                         'href' => $title->getLocalURL( $urlaction ),
1565                         'exists' => true
1566                 );
1567         }
1568
1569         # make sure we have some title to operate on
1570         static function checkTitle( &$title, $name ) {
1571                 if( !is_object( $title ) ) {
1572                         $title = Title::newFromText( $name );
1573                         if( !is_object( $title ) ) {
1574                                 $title = Title::newFromText( '--error: link target missing--' );
1575                         }
1576                 }
1577         }
1578
1579         /**
1580          * Build an array that represents the sidebar(s), the navigation bar among them
1581          *
1582          * @return array
1583          * @private
1584          */
1585         function buildSidebar() {
1586                 global $parserMemc, $wgEnableSidebarCache;
1587                 global $wgLang, $wgContLang;
1588
1589                 $fname = 'SkinTemplate::buildSidebar';
1590
1591                 wfProfileIn( $fname );
1592
1593                 $key = wfMemcKey( 'sidebar' );
1594                 $cacheSidebar = $wgEnableSidebarCache &&
1595                         ($wgLang->getCode() == $wgContLang->getCode());
1596
1597                 if ($cacheSidebar) {
1598                         $cachedsidebar = $parserMemc->get( $key );
1599                         if ($cachedsidebar!="") {
1600                                 wfProfileOut($fname);
1601                                 return $cachedsidebar;
1602                         }
1603                 }
1604
1605                 $bar = array();
1606                 $lines = explode( "\n", wfMsgForContent( 'sidebar' ) );
1607                 foreach ($lines as $line) {
1608                         if (strpos($line, '*') !== 0)
1609                                 continue;
1610                         if (strpos($line, '**') !== 0) {
1611                                 $line = trim($line, '* ');
1612                                 $heading = $line;
1613                         } else {
1614                                 if (strpos($line, '|') !== false) { // sanity check
1615                                         $line = explode( '|' , trim($line, '* '), 2 );
1616                                         $link = wfMsgForContent( $line[0] );
1617                                         if ($link == '-')
1618                                                 continue;
1619                                         if (wfEmptyMsg($line[1], $text = wfMsg($line[1])))
1620                                                 $text = $line[1];
1621                                         if (wfEmptyMsg($line[0], $link))
1622                                                 $link = $line[0];
1623
1624                                         if ( preg_match( '/^(?:' . wfUrlProtocols() . ')/', $link ) ) {
1625                                                 $href = $link;
1626                                         } else {
1627                                                 $title = Title::newFromText( $link );
1628                                                 if ( $title ) {
1629                                                         $title = $title->fixSpecialName();
1630                                                         $href = $title->getLocalURL();
1631                                                 } else {
1632                                                         $href = 'INVALID-TITLE';
1633                                                 }
1634                                         }
1635
1636                                         $bar[$heading][] = array(
1637                                                 'text' => $text,
1638                                                 'href' => $href,
1639                                                 'id' => 'n-' . strtr($line[1], ' ', '-'),
1640                                                 'active' => false
1641                                         );
1642                                 } else { continue; }
1643                         }
1644                 }
1645                 if ($cacheSidebar)
1646                         $parserMemc->set( $key, $bar, 86400 );
1647                 wfProfileOut( $fname );
1648                 return $bar;
1649         }
1650 }
1651 ?>