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