includes/Skin.php

   1 <?php
   2 if ( ! defined( 'MEDIAWIKI' ) )
   3         die( 1 );
   4
   5 /**
   6  *
   7  * @package MediaWiki
   8  * @subpackage Skins
   9  */
  10
  11 # See skin.txt
  12
  13 /**
  14  * The main skin class that provide methods and properties for all other skins.
  15  * This base class is also the "Standard" skin.
  16  * @package MediaWiki
  17  */
  18 class Skin extends Linker {
  19         /**#@+
  20          * @private
  21          */
  22         var $lastdate, $lastline;
  23         var $rc_cache ; # Cache for Enhanced Recent Changes
  24         var $rcCacheIndex ; # Recent Changes Cache Counter for visibility toggle
  25         var $rcMoveIndex;
  26         /**#@-*/
  27
  28         /** Constructor, call parent constructor */
  29         function Skin() { parent::Linker(); }
  30
  31         /**
  32          * Fetch the set of available skins.
  33          * @return array of strings
  34          * @static
  35          */
  36         static function &getSkinNames() {
  37                 global $wgValidSkinNames;
  38                 static $skinsInitialised = false;
  39                 if ( !$skinsInitialised ) {
  40                         # Get a list of available skins
  41                         # Build using the regular expression '^(.*).php$'
  42                         # Array keys are all lower case, array value keep the case used by filename
  43                         #
  44                         wfProfileIn( __METHOD__ . '-init' );
  45                         global $wgStyleDirectory;
  46                         $skinDir = dir( $wgStyleDirectory );
  47
  48                         # while code from www.php.net
  49                         while (false !== ($file = $skinDir->read())) {
  50                                 // Skip non-PHP files, hidden files, and '.dep' includes
  51                                 if(preg_match('/^([^.]*)\.php$/',$file, $matches)) {
  52                                         $aSkin = $matches[1];
  53                                         $wgValidSkinNames[strtolower($aSkin)] = $aSkin;
  54                                 }
  55                         }
  56                         $skinDir->close();
  57                         $skinsInitialised = true;
  58                         wfProfileOut( __METHOD__ . '-init' );
  59                 }
  60                 return $wgValidSkinNames;
  61         }
  62
  63         /**
  64          * Normalize a skin preference value to a form that can be loaded.
  65          * If a skin can't be found, it will fall back to the configured
  66          * default (or the old 'Classic' skin if that's broken).
  67          * @param string $key
  68          * @return string
  69          * @static
  70          */
  71         static function normalizeKey( $key ) {
  72                 global $wgDefaultSkin;
  73                 $skinNames = Skin::getSkinNames();
  74
  75                 if( $key == '' ) {
  76                         // Don't return the default immediately;
  77                         // in a misconfiguration we need to fall back.
  78                         $key = $wgDefaultSkin;
  79                 }
  80
  81                 if( isset( $skinNames[$key] ) ) {
  82                         return $key;
  83                 }
  84
  85                 // Older versions of the software used a numeric setting
  86                 // in the user preferences.
  87                 $fallback = array(
  88                         0 => $wgDefaultSkin,
  89                         1 => 'nostalgia',
  90                         2 => 'cologneblue' );
  91
  92                 if( isset( $fallback[$key] ) ){
  93                         $key = $fallback[$key];
  94                 }
  95
  96                 if( isset( $skinNames[$key] ) ) {
  97                         return $key;
  98                 } else {
  99                         // The old built-in skin
 100                         return 'standard';
 101                 }
 102         }
 103
 104         /**
 105          * Factory method for loading a skin of a given type
 106          * @param string $key 'monobook', 'standard', etc
 107          * @return Skin
 108          * @static
 109          */
 110         static function &newFromKey( $key ) {
 111                 global $wgStyleDirectory;
 112
 113                 $key = Skin::normalizeKey( $key );
 114
 115                 $skinNames = Skin::getSkinNames();
 116                 $skinName = $skinNames[$key];
 117
 118                 # Grab the skin class and initialise it.
 119                 // 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' );
 154                 if ( '' == $q ) { $q = 0; }
 155                 return $q;
 156         }
 157
 158         function initPage( &$out ) {
 159                 global $wgFavicon, $wgScriptPath, $wgSitename, $wgLanguageCode, $wgLanguageNames;
 160
 161                 $fname = 'Skin::initPage';
 162                 wfProfileIn( $fname );
 163
 164                 if( false !== $wgFavicon ) {
 165                         $out->addLink( array( 'rel' => 'shortcut icon', 'href' => $wgFavicon ) );
 166                 }
 167
 168                 # OpenSearch description link
 169                 $out->addLink( array(
 170                         'rel' => 'search',
 171                         'type' => 'application/opensearchdescription+xml',
 172                         'href' => "$wgScriptPath/opensearch_desc.php",
 173                         'title' => "$wgSitename ({$wgLanguageNames[$wgLanguageCode]})",
 174                 ));
 175
 176                 $this->addMetadataLinks($out);
 177
 178                 $this->mRevisionId = $out->mRevisionId;
 179
 180                 $this->preloadExistence();
 181
 182                 wfProfileOut( $fname );
 183         }
 184
 185         /**
 186          * Preload the existence of three commonly-requested pages in a single query
 187          */
 188         function preloadExistence() {
 189                 global $wgUser, $wgTitle;
 190
 191                 if ( $wgTitle->isTalkPage() ) {
 192                         $otherTab = $wgTitle->getSubjectPage();
 193                 } else {
 194                         $otherTab = $wgTitle->getTalkPage();
 195                 }
 196                 $lb = new LinkBatch( array(
 197                         $wgUser->getUserPage(),
 198                         $wgUser->getTalkPage(),
 199                         $otherTab
 200                 ));
 201                 $lb->execute();
 202         }
 203
 204         function addMetadataLinks( &$out ) {
 205                 global $wgTitle, $wgEnableDublinCoreRdf, $wgEnableCreativeCommonsRdf;
 206                 global $wgRightsPage, $wgRightsUrl;
 207
 208                 if( $out->isArticleRelated() ) {
 209                         # note: buggy CC software only reads first "meta" link
 210                         if( $wgEnableCreativeCommonsRdf ) {
 211                                 $out->addMetadataLink( array(
 212                                         'title' => 'Creative Commons',
 213                                         'type' => 'application/rdf+xml',
 214                                         'href' => $wgTitle->getLocalURL( 'action=creativecommons') ) );
 215                         }
 216                         if( $wgEnableDublinCoreRdf ) {
 217                                 $out->addMetadataLink( array(
 218                                         'title' => 'Dublin Core',
 219                                         'type' => 'application/rdf+xml',
 220                                         'href' => $wgTitle->getLocalURL( 'action=dublincore' ) ) );
 221                         }
 222                 }
 223                 $copyright = '';
 224                 if( $wgRightsPage ) {
 225                         $copy = Title::newFromText( $wgRightsPage );
 226                         if( $copy ) {
 227                                 $copyright = $copy->getLocalURL();
 228                         }
 229                 }
 230                 if( !$copyright && $wgRightsUrl ) {
 231                         $copyright = $wgRightsUrl;
 232                 }
 233                 if( $copyright ) {
 234                         $out->addLink( array(
 235                                 'rel' => 'copyright',
 236                                 'href' => $copyright ) );
 237                 }
 238         }
 239
 240         function outputPage( &$out ) {
 241                 global $wgDebugComments;
 242
 243                 wfProfileIn( 'Skin::outputPage' );
 244                 $this->initPage( $out );
 245
 246                 $out->out( $out->headElement() );
 247
 248                 $out->out( "\n<body" );
 249                 $ops = $this->getBodyOptions();
 250                 foreach ( $ops as $name => $val ) {
 251                         $out->out( " $name='$val'" );
 252                 }
 253                 $out->out( ">\n" );
 254                 if ( $wgDebugComments ) {
 255                         $out->out( "<!-- Wiki debugging output:\n" .
 256                           $out->mDebugtext . "-->\n" );
 257                 }
 258
 259                 $out->out( $this->beforeContent() );
 260
 261                 $out->out( $out->mBodytext . "\n" );
 262
 263                 $out->out( $this->afterContent() );
 264
 265                 $out->out( $this->bottomScripts() );
 266
 267                 $out->out( $out->reportTime() );
 268
 269                 $out->out( "\n</body></html>" );
 270         }
 271
 272         static function makeGlobalVariablesScript( $data ) {
 273                 $r = '<script type= "' . $data['jsmimetype'] . '">
 274                         var skin = "' . Xml::escapeJsString( $data['skinname'] ) . '";
 275                         var stylepath = "' . Xml::escapeJsString( $data['stylepath'] ) . '";
 276
 277                         var wgArticlePath = "' . Xml::escapeJsString( $data['articlepath'] ) . '";
 278                         var wgScriptPath = "' . Xml::escapeJsString( $data['scriptpath'] ) . '";
 279                         var wgServer = "' . Xml::escapeJsString( $data['serverurl'] ) . '";
 280
 281                         var wgCanonicalNamespace = "' . Xml::escapeJsString( $data['nscanonical'] ) . '";
 282                         var wgNamespaceNumber = ' . (int)$data['nsnumber'] . ';
 283                         var wgPageName = "' . Xml::escapeJsString( $data['titleprefixeddbkey'] ) . '";
 284                         var wgTitle = "' . Xml::escapeJsString( $data['titletext'] ) . '";
 285                         var wgArticleId = ' . (int)$data['articleid'] . ';
 286                         var wgIsArticle = ' . ( $data['isarticle'] ? 'true' : 'false' ) . ';
 287
 288                         var wgUserName = ' . ( $data['username'] == NULL ? 'null' : ( '"' . Xml::escapeJsString( $data['username'] ) . '"' ) ) . ';
 289                         var wgUserLanguage = "' . Xml::escapeJsString( $data['userlang'] ) . '";
 290                         var wgContentLanguage = "' . Xml::escapeJsString( $data['lang'] ) . '";
 291                 </script>
 292                 ';
 293
 294                 return $r;
 295         }
 296
 297         function getHeadScripts() {
 298                 global $wgStylePath, $wgUser, $wgAllowUserJs, $wgJsMimeType, $wgStyleVersion;
 299                 global $wgArticlePath, $wgScriptPath, $wgServer, $wgContLang, $wgLang;
 300                 global $wgTitle, $wgCanonicalNamespaceNames, $wgOut;
 301
 302                 $ns = $wgTitle->getNamespace();
 303                 $nsname = isset( $wgCanonicalNamespaceNames[ $ns ] ) ? $wgCanonicalNamespaceNames[ $ns ] : $wgTitle->getNsText();
 304
 305                 $vars = array(
 306                         'jsmimetype' => $wgJsMimeType,
 307                         'skinname' => $this->getSkinName(),
 308                         'stylepath' => $wgStylePath,
 309                         'articlepath' => $wgArticlePath,
 310                         'scriptpath' => $wgScriptPath,
 311                         'serverurl' => $wgServer,
 312                         'nscanonical' => $nsname,
 313                         'nsnumber' => $wgTitle->getNamespace(),
 314                         'titleprefixeddbkey' => $wgTitle->getPrefixedDBKey(),
 315                         'titletext' => $wgTitle->getText(),
 316                         'articleid' => $wgTitle->getArticleId(),
 317                         'isarticle' => $wgOut->isArticle(),
 318                         'username' => $wgUser->isAnon() ? NULL : $wgUser->getName(),
 319                         'userlang' => $wgLang->getCode(),
 320                         'lang' => $wgContLang->getCode(),
 321                 );
 322
 323                 $r = self::makeGlobalVariablesScript( $vars );
 324
 325                 $r .= "<script type=\"{$wgJsMimeType}\" src=\"{$wgStylePath}/common/wikibits.js?$wgStyleVersion\"></script>\n";
 326                 global $wgUseSiteJs;
 327                 if ($wgUseSiteJs) {
 328                         if ($wgUser->isLoggedIn()) {
 329                                 $r .= "<script type=\"$wgJsMimeType\" src=\"".htmlspecialchars(self::makeUrl('-','action=raw&smaxage=0&gen=js'))."\"><!-- site js --></script>\n";
 330                         } else {
 331                                 $r .= "<script type=\"$wgJsMimeType\" src=\"".htmlspecialchars(self::makeUrl('-','action=raw&gen=js'))."\"><!-- site js --></script>\n";
 332                         }
 333                 }
 334                 if( $wgAllowUserJs && $wgUser->isLoggedIn() ) {
 335                         $userpage = $wgUser->getUserPage();
 336                         $userjs = htmlspecialchars( self::makeUrl(
 337                                 $userpage->getPrefixedText().'/'.$this->getSkinName().'.js',
 338                                 'action=raw&ctype='.$wgJsMimeType));
 339                         $r .= '<script type="'.$wgJsMimeType.'" src="'.$userjs."\"></script>\n";
 340                 }
 341                 return $r;
 342         }
 343
 344         /**
 345          * To make it harder for someone to slip a user a fake
 346          * user-JavaScript or user-CSS preview, a random token
 347          * is associated with the login session. If it's not
 348          * passed back with the preview request, we won't render
 349          * the code.
 350          *
 351          * @param string $action
 352          * @return bool
 353          * @private
 354          */
 355         function userCanPreview( $action ) {
 356                 global $wgTitle, $wgRequest, $wgUser;
 357
 358                 if( $action != 'submit' )
 359                         return false;
 360                 if( !$wgRequest->wasPosted() )
 361                         return false;
 362                 if( !$wgTitle->userCanEditCssJsSubpage() )
 363                         return false;
 364                 return $wgUser->matchEditToken(
 365                         $wgRequest->getVal( 'wpEditToken' ) );
 366         }
 367
 368         # get the user/site-specific stylesheet, SkinTemplate loads via RawPage.php (settings are cached that way)
 369         function getUserStylesheet() {
 370                 global $wgStylePath, $wgRequest, $wgContLang, $wgSquidMaxage, $wgStyleVersion;
 371                 $sheet = $this->getStylesheet();
 372                 $action = $wgRequest->getText('action');
 373                 $s = "@import \"$wgStylePath/common/common.css?$wgStyleVersion\";\n";
 374                 $s .= "@import \"$wgStylePath/$sheet?$wgStyleVersion\";\n";
 375                 if($wgContLang->isRTL()) $s .= "@import \"$wgStylePath/common/common_rtl.css?$wgStyleVersion\";\n";
 376
 377                 $query = "usemsgcache=yes&action=raw&ctype=text/css&smaxage=$wgSquidMaxage";
 378                 $s .= '@import "' . self::makeNSUrl( 'Common.css', $query, NS_MEDIAWIKI ) . "\";\n" .
 379                         '@import "' . self::makeNSUrl( ucfirst( $this->getSkinName() . '.css' ), $query, NS_MEDIAWIKI ) . "\";\n";
 380
 381                 $s .= $this->doGetUserStyles();
 382                 return $s."\n";
 383         }
 384
 385         /**
 386          * This returns MediaWiki:Common.js.  For some bizarre reason, it does
 387          * *not* return any custom user JS from user subpages.  Huh?
 388          *
 389          * @return string
 390          */
 391         function getUserJs() {
 392                 $fname = 'Skin::getUserJs';
 393                 wfProfileIn( $fname );
 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                 wfProfileOut( $fname );
 405                 return $s;
 406     }
 407
 408         /**
 409          * Return html code that include User stylesheets
 410          */
 411         function getUserStyles() {
 412                 $s = "<style type='text/css'>\n";
 413                 $s .= "/*/*/ /*<![CDATA[*/\n"; # <-- Hide the styles from Netscape 4 without hiding them from IE/Mac
 414                 $s .= $this->getUserStylesheet();
 415                 $s .= "/*]]>*/ /* */\n";
 416                 $s .= "</style>\n";
 417                 return $s;
 418         }
 419
 420         /**
 421          * Some styles that are set by user through the user settings interface.
 422          */
 423         function doGetUserStyles() {
 424                 global $wgUser, $wgUser, $wgRequest, $wgTitle, $wgAllowUserCss;
 425
 426                 $s = '';
 427
 428                 if( $wgAllowUserCss && $wgUser->isLoggedIn() ) { # logged in
 429                         if($wgTitle->isCssSubpage() && $this->userCanPreview( $wgRequest->getText( 'action' ) ) ) {
 430                                 $s .= $wgRequest->getText('wpTextbox1');
 431                         } else {
 432                                 $userpage = $wgUser->getUserPage();
 433                                 $s.= '@import "'.self::makeUrl(
 434                                         $userpage->getPrefixedText().'/'.$this->getSkinName().'.css',
 435                                         'action=raw&ctype=text/css').'";'."\n";
 436                         }
 437                 }
 438
 439                 return $s . $this->reallyDoGetUserStyles();
 440         }
 441
 442         function reallyDoGetUserStyles() {
 443                 global $wgUser;
 444                 $s = '';
 445                 if (($undopt = $wgUser->getOption("underline")) != 2) {
 446                         $underline = $undopt ? 'underline' : 'none';
 447                         $s .= "a { text-decoration: $underline; }\n";
 448                 }
 449                 if( $wgUser->getOption( 'highlightbroken' ) ) {
 450                         $s .= "a.new, #quickbar a.new { color: #CC2200; }\n";
 451                 } else {
 452                         $s .= <<<END
 453 a.new, #quickbar a.new,
 454 a.stub, #quickbar a.stub {
 455         color: inherit;
 456         text-decoration: inherit;
 457 }
 458 a.new:after, #quickbar a.new:after {
 459         content: "?";
 460         color: #CC2200;
 461         text-decoration: $underline;
 462 }
 463 a.stub:after, #quickbar a.stub:after {
 464         content: "!";
 465         color: #772233;
 466         text-decoration: $underline;
 467 }
 468 END;
 469                 }
 470                 if( $wgUser->getOption( 'justify' ) ) {
 471                         $s .= "#article, #bodyContent { text-align: justify; }\n";
 472                 }
 473                 if( !$wgUser->getOption( 'showtoc' ) ) {
 474                         $s .= "#toc { display: none; }\n";
 475                 }
 476                 if( !$wgUser->getOption( 'editsection' ) ) {
 477                         $s .= ".editsection { display: none; }\n";
 478                 }
 479                 return $s;
 480         }
 481
 482         function getBodyOptions() {
 483                 global $wgUser, $wgTitle, $wgOut, $wgRequest, $wgContLang;
 484
 485                 extract( $wgRequest->getValues( 'oldid', 'redirect', 'diff' ) );
 486
 487                 if ( 0 != $wgTitle->getNamespace() ) {
 488                         $a = array( 'bgcolor' => '#ffffec' );
 489                 }
 490                 else $a = array( 'bgcolor' => '#FFFFFF' );
 491                 if($wgOut->isArticle() && $wgUser->getOption('editondblclick') &&
 492                   $wgTitle->userCanEdit() ) {
 493                         $t = wfMsg( 'editthispage' );
 494                         $s = $wgTitle->getFullURL( $this->editUrlOptions() );
 495                         $s = 'document.location = "' .wfEscapeJSString( $s ) .'";';
 496                         $a += array ('ondblclick' => $s);
 497
 498                 }
 499                 $a['onload'] = $wgOut->getOnloadHandler();
 500                 if( $wgUser->getOption( 'editsectiononrightclick' ) ) {
 501                         if( $a['onload'] != '' ) {
 502                                 $a['onload'] .= ';';
 503                         }
 504                         $a['onload'] .= 'setupRightClickEdit()';
 505                 }
 506                 $a['class'] = 'ns-'.$wgTitle->getNamespace().' '.($wgContLang->isRTL() ? "rtl" : "ltr").
 507                 ' '.Sanitizer::escapeId( 'page-'.$wgTitle->getPrefixedText() );
 508                 return $a;
 509         }
 510
 511         /**
 512          * URL to the logo
 513          */
 514         function getLogo() {
 515                 global $wgLogo;
 516                 return $wgLogo;
 517         }
 518
 519         /**
 520          * This will be called immediately after the <body> tag.  Split into
 521          * two functions to make it easier to subclass.
 522          */
 523         function beforeContent() {
 524                 return $this->doBeforeContent();
 525         }
 526
 527         function doBeforeContent() {
 528                 global $wgContLang;
 529                 $fname = 'Skin::doBeforeContent';
 530                 wfProfileIn( $fname );
 531
 532                 $s = '';
 533                 $qb = $this->qbSetting();
 534
 535                 if( $langlinks = $this->otherLanguages() ) {
 536                         $rows = 2;
 537                         $borderhack = '';
 538                 } else {
 539                         $rows = 1;
 540                         $langlinks = false;
 541                         $borderhack = 'class="top"';
 542                 }
 543
 544                 $s .= "\n<div id='content'>\n<div id='topbar'>\n" .
 545                   "<table border='0' cellspacing='0' width='98%'>\n<tr>\n";
 546
 547                 $shove = ($qb != 0);
 548                 $left = ($qb == 1 || $qb == 3);
 549                 if($wgContLang->isRTL()) $left = !$left;
 550
 551                 if ( !$shove ) {
 552                         $s .= "<td class='top' align='left' valign='top' rowspan='{$rows}'>\n" .
 553                           $this->logoText() . '</td>';
 554                 } elseif( $left ) {
 555                         $s .= $this->getQuickbarCompensator( $rows );
 556                 }
 557                 $l = $wgContLang->isRTL() ? 'right' : 'left';
 558                 $s .= "<td {$borderhack} align='$l' valign='top'>\n";
 559
 560                 $s .= $this->topLinks() ;
 561                 $s .= "<p class='subtitle'>" . $this->pageTitleLinks() . "</p>\n";
 562
 563                 $r = $wgContLang->isRTL() ? "left" : "right";
 564                 $s .= "</td>\n<td {$borderhack} valign='top' align='$r' nowrap='nowrap'>";
 565                 $s .= $this->nameAndLogin();
 566                 $s .= "\n<br />" . $this->searchForm() . "</td>";
 567
 568                 if ( $langlinks ) {
 569                         $s .= "</tr>\n<tr>\n<td class='top' colspan=\"2\">$langlinks</td>\n";
 570                 }
 571
 572                 if ( $shove && !$left ) { # Right
 573                         $s .= $this->getQuickbarCompensator( $rows );
 574                 }
 575                 $s .= "</tr>\n</table>\n</div>\n";
 576                 $s .= "\n<div id='article'>\n";
 577
 578                 $notice = wfGetSiteNotice();
 579                 if( $notice ) {
 580                         $s .= "\n<div id='siteNotice'>$notice</div>\n";
 581                 }
 582                 $s .= $this->pageTitle();
 583                 $s .= $this->pageSubtitle() ;
 584                 $s .= $this->getCategories();
 585                 wfProfileOut( $fname );
 586                 return $s;
 587         }
 588
 589
 590         function getCategoryLinks () {
 591                 global $wgOut, $wgTitle, $wgUseCategoryBrowser;
 592                 global $wgContLang;
 593
 594                 if( count( $wgOut->mCategoryLinks ) == 0 ) return '';
 595
 596                 # Separator
 597                 $sep = wfMsgHtml( 'catseparator' );
 598
 599                 // Use Unicode bidi embedding override characters,
 600                 // to make sure links don't smash each other up in ugly ways.
 601                 $dir = $wgContLang->isRTL() ? 'rtl' : 'ltr';
 602                 $embed = "<span dir='$dir'>";
 603                 $pop = '</span>';
 604                 $t = $embed . implode ( "{$pop} {$sep} {$embed}" , $wgOut->mCategoryLinks ) . $pop;
 605
 606                 $msg = wfMsgExt( 'pagecategories', array( 'parsemag', 'escape' ), count( $wgOut->mCategoryLinks ) );
 607                 $s = $this->makeLinkObj( Title::newFromText( wfMsgForContent('pagecategorieslink') ), $msg )
 608                         . ': ' . $t;
 609
 610                 # optional 'dmoz-like' category browser. Will be shown under the list
 611                 # of categories an article belong to
 612                 if($wgUseCategoryBrowser) {
 613                         $s .= '<br /><hr />';
 614
 615                         # get a big array of the parents tree
 616                         $parenttree = $wgTitle->getParentCategoryTree();
 617                         # Skin object passed by reference cause it can not be
 618                         # accessed under the method subfunction drawCategoryBrowser
 619                         $tempout = explode("\n", Skin::drawCategoryBrowser($parenttree, $this) );
 620                         # Clean out bogus first entry and sort them
 621                         unset($tempout[0]);
 622                         asort($tempout);
 623                         # Output one per line
 624                         $s .= implode("<br />\n", $tempout);
 625                 }
 626
 627                 return $s;
 628         }
 629
 630         /** Render the array as a serie of links.
 631          * @param $tree Array: categories tree returned by Title::getParentCategoryTree
 632          * @param &skin Object: skin passed by reference
 633          * @return String separated by &gt;, terminate with "\n"
 634          */
 635         function drawCategoryBrowser($tree, &$skin) {
 636                 $return = '';
 637                 foreach ($tree as $element => $parent) {
 638                         if (empty($parent)) {
 639                                 # element start a new list
 640                                 $return .= "\n";
 641                         } else {
 642                                 # grab the others elements
 643                                 $return .= Skin::drawCategoryBrowser($parent, $skin) . ' &gt; ';
 644                         }
 645                         # add our current element to the list
 646                         $eltitle = Title::NewFromText($element);
 647                         $return .=  $skin->makeLinkObj( $eltitle, $eltitle->getText() ) ;
 648                 }
 649                 return $return;
 650         }
 651
 652         function getCategories() {
 653                 $catlinks=$this->getCategoryLinks();
 654                 if(!empty($catlinks)) {
 655                         return "<p class='catlinks'>{$catlinks}</p>";
 656                 }
 657         }
 658
 659         function getQuickbarCompensator( $rows = 1 ) {
 660                 return "<td width='152' rowspan='{$rows}'>&nbsp;</td>";
 661         }
 662
 663         /**
 664          * This gets called shortly before the \</body\> tag.
 665          * @return String HTML to be put before \</body\>
 666          */
 667         function afterContent() {
 668                 $printfooter = "<div class=\"printfooter\">\n" . $this->printFooter() . "</div>\n";
 669                 return $printfooter . $this->doAfterContent();
 670         }
 671
 672         /**
 673          * This gets called shortly before the \</body\> tag.
 674          * @return String HTML-wrapped JS code to be put before \</body\>
 675          */
 676         function bottomScripts() {
 677                 global $wgJsMimeType;
 678                 return "\n\t\t<script type=\"$wgJsMimeType\">if (window.runOnloadHook) runOnloadHook();</script>\n";
 679         }
 680
 681         /** @return string Retrievied from HTML text */
 682         function printSource() {
 683                 global $wgTitle;
 684                 $url = htmlspecialchars( $wgTitle->getFullURL() );
 685                 return wfMsg( 'retrievedfrom', '<a href="'.$url.'">'.$url.'</a>' );
 686         }
 687
 688         function printFooter() {
 689                 return "<p>" .  $this->printSource() .
 690                         "</p>\n\n<p>" . $this->pageStats() . "</p>\n";
 691         }
 692
 693         /** overloaded by derived classes */
 694         function doAfterContent() { }
 695
 696         function pageTitleLinks() {
 697                 global $wgOut, $wgTitle, $wgUser, $wgRequest;
 698
 699                 extract( $wgRequest->getValues( 'oldid', 'diff' ) );
 700                 $action = $wgRequest->getText( 'action' );
 701
 702                 $s = $this->printableLink();
 703                 $disclaimer = $this->disclaimerLink(); # may be empty
 704                 if( $disclaimer ) {
 705                         $s .= ' | ' . $disclaimer;
 706                 }
 707                 $privacy = $this->privacyLink(); # may be empty too
 708                 if( $privacy ) {
 709                         $s .= ' | ' . $privacy;
 710                 }
 711
 712                 if ( $wgOut->isArticleRelated() ) {
 713                         if ( $wgTitle->getNamespace() == NS_IMAGE ) {
 714                                 $name = $wgTitle->getDBkey();
 715                                 $image = new Image( $wgTitle );
 716                                 if( $image->exists() ) {
 717                                         $link = htmlspecialchars( $image->getURL() );
 718                                         $style = $this->getInternalLinkAttributes( $link, $name );
 719                                         $s .= " | <a href=\"{$link}\"{$style}>{$name}</a>";
 720                                 }
 721                         }
 722                 }
 723                 if ( 'history' == $action || isset( $diff ) || isset( $oldid ) ) {
 724                         $s .= ' | ' . $this->makeKnownLinkObj( $wgTitle,
 725                                         wfMsg( 'currentrev' ) );
 726                 }
 727
 728                 if ( $wgUser->getNewtalk() ) {
 729                         # do not show "You have new messages" text when we are viewing our
 730                         # own talk page
 731                         if( !$wgTitle->equals( $wgUser->getTalkPage() ) ) {
 732                                 $tl = $this->makeKnownLinkObj( $wgUser->getTalkPage(), wfMsgHtml( 'newmessageslink' ), 'redirect=no' );
 733                                 $dl = $this->makeKnownLinkObj( $wgUser->getTalkPage(), wfMsgHtml( 'newmessagesdifflink' ), 'diff=cur' );
 734                                 $s.= ' | <strong>'. wfMsg( 'youhavenewmessages', $tl, $dl ) . '</strong>';
 735                                 # disable caching
 736                                 $wgOut->setSquidMaxage(0);
 737                                 $wgOut->enableClientCache(false);
 738                         }
 739                 }
 740
 741                 $undelete = $this->getUndeleteLink();
 742                 if( !empty( $undelete ) ) {
 743                         $s .= ' | '.$undelete;
 744                 }
 745                 return $s;
 746         }
 747
 748         function getUndeleteLink() {
 749                 global $wgUser, $wgTitle, $wgContLang, $action;
 750                 if(     $wgUser->isAllowed( 'deletedhistory' ) &&
 751                         (($wgTitle->getArticleId() == 0) || ($action == "history")) &&
 752                         ($n = $wgTitle->isDeleted() ) )
 753                 {
 754                         if ( $wgUser->isAllowed( 'delete' ) ) {
 755                                 $msg = 'thisisdeleted';
 756                         } else {
 757                                 $msg = 'viewdeleted';
 758                         }
 759                         return wfMsg( $msg,
 760                                 $this->makeKnownLink(
 761                                         $wgContLang->SpecialPage( 'Undelete/' . $wgTitle->getPrefixedDBkey() ),
 762                                         wfMsgExt( 'restorelink', array( 'parsemag', 'escape' ), $n ) ) );
 763                 }
 764                 return '';
 765         }
 766
 767         function printableLink() {
 768                 global $wgOut, $wgFeedClasses, $wgRequest;
 769
 770                 $baseurl = $_SERVER['REQUEST_URI'];
 771                 if( strpos( '?', $baseurl ) == false ) {
 772                         $baseurl .= '?';
 773                 } else {
 774                         $baseurl .= '&';
 775                 }
 776                 $baseurl = htmlspecialchars( $baseurl );
 777                 $printurl = $wgRequest->escapeAppendQuery( 'printable=yes' );
 778
 779                 $s = "<a href=\"$printurl\">" . wfMsg( 'printableversion' ) . '</a>';
 780                 if( $wgOut->isSyndicated() ) {
 781                         foreach( $wgFeedClasses as $format => $class ) {
 782                                 $feedurl = $wgRequest->escapeAppendQuery( "feed=$format" );
 783                                 $s .= " | <a href=\"$feedurl\">{$format}</a>";
 784                         }
 785                 }
 786                 return $s;
 787         }
 788
 789         function pageTitle() {
 790                 global $wgOut;
 791                 $s = '<h1 class="pagetitle">' . htmlspecialchars( $wgOut->getPageTitle() ) . '</h1>';
 792                 return $s;
 793         }
 794
 795         function pageSubtitle() {
 796                 global $wgOut;
 797
 798                 $sub = $wgOut->getSubtitle();
 799                 if ( '' == $sub ) {
 800                         global $wgExtraSubtitle;
 801                         $sub = wfMsg( 'tagline' ) . $wgExtraSubtitle;
 802                 }
 803                 $subpages = $this->subPageSubtitle();
 804                 $sub .= !empty($subpages)?"</p><p class='subpages'>$subpages":'';
 805                 $s = "<p class='subtitle'>{$sub}</p>\n";
 806                 return $s;
 807         }
 808
 809         function subPageSubtitle() {
 810                 global $wgOut,$wgTitle,$wgNamespacesWithSubpages;
 811                 $subpages = '';
 812                 if($wgOut->isArticle() && !empty($wgNamespacesWithSubpages[$wgTitle->getNamespace()])) {
 813                         $ptext=$wgTitle->getPrefixedText();
 814                         if(preg_match('/\//',$ptext)) {
 815                                 $links = explode('/',$ptext);
 816                                 $c = 0;
 817                                 $growinglink = '';
 818                                 foreach($links as $link) {
 819                                         $c++;
 820                                         if ($c<count($links)) {
 821                                                 $growinglink .= $link;
 822                                                 $getlink = $this->makeLink( $growinglink, htmlspecialchars( $link ) );
 823                                                 if(preg_match('/class="new"/i',$getlink)) { break; } # this is a hack, but it saves time
 824                                                 if ($c>1) {
 825                                                         $subpages .= ' | ';
 826                                                 } else  {
 827                                                         $subpages .= '&lt; ';
 828                                                 }
 829                                                 $subpages .= $getlink;
 830                                                 $growinglink .= '/';
 831                                         }
 832                                 }
 833                         }
 834                 }
 835                 return $subpages;
 836         }
 837
 838         function nameAndLogin() {
 839                 global $wgUser, $wgTitle, $wgLang, $wgContLang, $wgShowIPinHeader;
 840
 841                 $li = $wgContLang->specialPage( 'Userlogin' );
 842                 $lo = $wgContLang->specialPage( 'Userlogout' );
 843
 844                 $s = '';
 845                 if ( $wgUser->isAnon() ) {
 846                         if( $wgShowIPinHeader && isset( $_COOKIE[ini_get('session.name')] ) ) {
 847                                 $n = wfGetIP();
 848
 849                                 $tl = $this->makeKnownLinkObj( $wgUser->getTalkPage(),
 850                                   $wgLang->getNsText( NS_TALK ) );
 851
 852                                 $s .= $n . ' ('.$tl.')';
 853                         } else {
 854                                 $s .= wfMsg('notloggedin');
 855                         }
 856
 857                         $rt = $wgTitle->getPrefixedURL();
 858                         if ( 0 == strcasecmp( urlencode( $lo ), $rt ) ) {
 859                                 $q = '';
 860                         } else { $q = "returnto={$rt}"; }
 861
 862                         $s .= "\n<br />" . $this->makeKnownLinkObj(
 863                                 SpecialPage::getTitleFor( 'Userlogin' ),
 864                                 wfMsg( 'login' ), $q );
 865                 } else {
 866                         $n = $wgUser->getName();
 867                         $rt = $wgTitle->getPrefixedURL();
 868                         $tl = $this->makeKnownLinkObj( $wgUser->getTalkPage(),
 869                           $wgLang->getNsText( NS_TALK ) );
 870
 871                         $tl = " ({$tl})";
 872
 873                         $s .= $this->makeKnownLinkObj( $wgUser->getUserPage(),
 874                           $n ) . "{$tl}<br />" .
 875                           $this->makeKnownLinkObj( SpecialPage::getTitleFor( 'Userlogout' ), wfMsg( 'logout' ),
 876                           "returnto={$rt}" ) . ' | ' .
 877                           $this->specialLink( 'preferences' );
 878                 }
 879                 $s .= ' | ' . $this->makeKnownLink( wfMsgForContent( 'helppage' ),
 880                   wfMsg( 'help' ) );
 881
 882                 return $s;
 883         }
 884
 885         function getSearchLink() {
 886                 $searchPage = SpecialPage::getTitleFor( 'Search' );
 887                 return $searchPage->getLocalURL();
 888         }
 889
 890         function escapeSearchLink() {
 891                 return htmlspecialchars( $this->getSearchLink() );
 892         }
 893
 894         function searchForm() {
 895                 global $wgRequest;
 896                 $search = $wgRequest->getText( 'search' );
 897
 898                 $s = '<form name="search" class="inline" method="post" action="'
 899                   . $this->escapeSearchLink() . "\">\n"
 900                   . '<input type="text" name="search" size="19" value="'
 901                   . htmlspecialchars(substr($search,0,256)) . "\" />\n"
 902                   . '<input type="submit" name="go" value="' . wfMsg ('searcharticle') . '" />&nbsp;'
 903                   . '<input type="submit" name="fulltext" value="' . wfMsg ('searchbutton') . "\" />\n</form>";
 904
 905                 return $s;
 906         }
 907
 908         function topLinks() {
 909                 global $wgOut;
 910                 $sep = " |\n";
 911
 912                 $s = $this->mainPageLink() . $sep
 913                   . $this->specialLink( 'recentchanges' );
 914
 915                 if ( $wgOut->isArticleRelated() ) {
 916                         $s .=  $sep . $this->editThisPage()
 917                           . $sep . $this->historyLink();
 918                 }
 919                 # Many people don't like this dropdown box
 920                 #$s .= $sep . $this->specialPagesList();
 921
 922                 $s .= $this->variantLinks();
 923
 924                 $s .= $this->extensionTabLinks();
 925
 926                 return $s;
 927         }
 928
 929         /**
 930          * Compatibility for extensions adding functionality through tabs.
 931          * Eventually these old skins should be replaced with SkinTemplate-based
 932          * versions, sigh...
 933          * @return string
 934          */
 935         function extensionTabLinks() {
 936                 $tabs = array();
 937                 $s = '';
 938                 wfRunHooks( 'SkinTemplateTabs', array( $this, &$tabs ) );
 939                 foreach( $tabs as $tab ) {
 940                         $s .= ' | ' . Xml::element( 'a',
 941                                 array( 'href' => $tab['href'] ),
 942                                 $tab['text'] );
 943                 }
 944                 return $s;
 945         }
 946
 947         /**
 948          * Language/charset variant links for classic-style skins
 949          * @return string
 950          */
 951         function variantLinks() {
 952                 $s = '';
 953                 /* show links to different language variants */
 954                 global $wgDisableLangConversion, $wgContLang, $wgTitle;
 955                 $variants = $wgContLang->getVariants();
 956                 if( !$wgDisableLangConversion && sizeof( $variants ) > 1 ) {
 957                         foreach( $variants as $code ) {
 958                                 $varname = $wgContLang->getVariantname( $code );
 959                                 if( $varname == 'disable' )
 960                                         continue;
 961                                 $s .= ' | <a href="' . $wgTitle->escapeLocalUrl( 'variant=' . $code ) . '">' . htmlspecialchars( $varname ) . '</a>';
 962                         }
 963                 }
 964                 return $s;
 965         }
 966
 967         function bottomLinks() {
 968                 global $wgOut, $wgUser, $wgTitle, $wgUseTrackbacks;
 969                 $sep = " |\n";
 970
 971                 $s = '';
 972                 if ( $wgOut->isArticleRelated() ) {
 973                         $s .= '<strong>' . $this->editThisPage() . '</strong>';
 974                         if ( $wgUser->isLoggedIn() ) {
 975                                 $s .= $sep . $this->watchThisPage();
 976                         }
 977                         $s .= $sep . $this->talkLink()
 978                           . $sep . $this->historyLink()
 979                           . $sep . $this->whatLinksHere()
 980                           . $sep . $this->watchPageLinksLink();
 981
 982                         if ($wgUseTrackbacks)
 983                                 $s .= $sep . $this->trackbackLink();
 984
 985                         if ( $wgTitle->getNamespace() == NS_USER
 986                             || $wgTitle->getNamespace() == NS_USER_TALK )
 987
 988                         {
 989                                 $id=User::idFromName($wgTitle->getText());
 990                                 $ip=User::isIP($wgTitle->getText());
 991
 992                                 if($id || $ip) { # both anons and non-anons have contri list
 993                                         $s .= $sep . $this->userContribsLink();
 994                                 }
 995                                 if( $this->showEmailUser( $id ) ) {
 996                                         $s .= $sep . $this->emailUserLink();
 997                                 }
 998                         }
 999                         if ( $wgTitle->getArticleId() ) {
1000                                 $s .= "\n<br />";
1001                                 if($wgUser->isAllowed('delete')) { $s .= $this->deleteThisPage(); }
1002                                 if($wgUser->isAllowed('protect')) { $s .= $sep . $this->protectThisPage(); }
1003                                 if($wgUser->isAllowed('move')) { $s .= $sep . $this->moveThisPage(); }
1004                         }
1005                         $s .= "<br />\n" . $this->otherLanguages();
1006                 }
1007                 return $s;
1008         }
1009
1010         function pageStats() {
1011                 global $wgOut, $wgLang, $wgArticle, $wgRequest, $wgUser;
1012                 global $wgDisableCounters, $wgMaxCredits, $wgShowCreditsIfMax, $wgTitle, $wgPageShowWatchingUsers;
1013
1014                 extract( $wgRequest->getValues( 'oldid', 'diff' ) );
1015                 if ( ! $wgOut->isArticle() ) { return ''; }
1016                 if ( isset( $oldid ) || isset( $diff ) ) { return ''; }
1017                 if ( 0 == $wgArticle->getID() ) { return ''; }
1018
1019                 $s = '';
1020                 if ( !$wgDisableCounters ) {
1021                         $count = $wgLang->formatNum( $wgArticle->getCount() );
1022                         if ( $count ) {
1023                                 $s = wfMsgExt( 'viewcount', array( 'parseinline' ), $count );
1024                         }
1025                 }
1026
1027                 if (isset($wgMaxCredits) && $wgMaxCredits != 0) {
1028                     require_once('Credits.php');
1029                     $s .= ' ' . getCredits($wgArticle, $wgMaxCredits, $wgShowCreditsIfMax);
1030                 } else {
1031                     $s .= $this->lastModified();
1032                 }
1033
1034                 if ($wgPageShowWatchingUsers && $wgUser->getOption( 'shownumberswatching' )) {
1035                         $dbr =& wfGetDB( DB_SLAVE );
1036                         $watchlist = $dbr->tableName( 'watchlist' );
1037                         $sql = "SELECT COUNT(*) AS n FROM $watchlist
1038                                 WHERE wl_title='" . $dbr->strencode($wgTitle->getDBKey()) .
1039                                 "' AND  wl_namespace=" . $wgTitle->getNamespace() ;
1040                         $res = $dbr->query( $sql, 'Skin::pageStats');
1041                         $x = $dbr->fetchObject( $res );
1042                         $s .= ' ' . wfMsg('number_of_watching_users_pageview', $x->n );
1043                 }
1044
1045                 return $s . ' ' .  $this->getCopyright();
1046         }
1047
1048         function getCopyright( $type = 'detect' ) {
1049                 global $wgRightsPage, $wgRightsUrl, $wgRightsText, $wgRequest;
1050
1051                 if ( $type == 'detect' ) {
1052                         $oldid = $wgRequest->getVal( 'oldid' );
1053                         $diff = $wgRequest->getVal( 'diff' );
1054
1055                         if ( !is_null( $oldid ) && is_null( $diff ) && wfMsgForContent( 'history_copyright' ) !== '-' ) {
1056                                 $type = 'history';
1057                         } else {
1058                                 $type = 'normal';
1059                         }
1060                 }
1061
1062                 if ( $type == 'history' ) {
1063                         $msg = 'history_copyright';
1064                 } else {
1065                         $msg = 'copyright';
1066                 }
1067
1068                 $out = '';
1069                 if( $wgRightsPage ) {
1070                         $link = $this->makeKnownLink( $wgRightsPage, $wgRightsText );
1071                 } elseif( $wgRightsUrl ) {
1072                         $link = $this->makeExternalLink( $wgRightsUrl, $wgRightsText );
1073                 } else {
1074                         # Give up now
1075                         return $out;
1076                 }
1077                 $out .= wfMsgForContent( $msg, $link );
1078                 return $out;
1079         }
1080
1081         function getCopyrightIcon() {
1082                 global $wgRightsUrl, $wgRightsText, $wgRightsIcon, $wgCopyrightIcon;
1083                 $out = '';
1084                 if ( isset( $wgCopyrightIcon ) && $wgCopyrightIcon ) {
1085                         $out = $wgCopyrightIcon;
1086                 } else if ( $wgRightsIcon ) {
1087                         $icon = htmlspecialchars( $wgRightsIcon );
1088                         if ( $wgRightsUrl ) {
1089                                 $url = htmlspecialchars( $wgRightsUrl );
1090                                 $out .= '<a href="'.$url.'">';
1091                         }
1092                         $text = htmlspecialchars( $wgRightsText );
1093                         $out .= "<img src=\"$icon\" alt='$text' />";
1094                         if ( $wgRightsUrl ) {
1095                                 $out .= '</a>';
1096                         }
1097                 }
1098                 return $out;
1099         }
1100
1101         function getPoweredBy() {
1102                 global $wgStylePath;
1103                 $url = htmlspecialchars( "$wgStylePath/common/images/poweredby_mediawiki_88x31.png" );
1104                 $img = '<a href="http://www.mediawiki.org/"><img src="'.$url.'" alt="MediaWiki" /></a>';
1105                 return $img;
1106         }
1107
1108         function lastModified() {
1109                 global $wgLang, $wgArticle, $wgLoadBalancer;
1110
1111                 $timestamp = $wgArticle->getTimestamp();
1112                 if ( $timestamp ) {
1113                         $d = $wgLang->date( $timestamp, true );
1114                         $t = $wgLang->time( $timestamp, true );
1115                         $s = ' ' . wfMsg( 'lastmodifiedat', $d, $t );
1116                 } else {
1117                         $s = '';
1118                 }
1119                 if ( $wgLoadBalancer->getLaggedSlaveMode() ) {
1120                         $s .= ' <strong>' . wfMsg( 'laggedslavemode' ) . '</strong>';
1121                 }
1122                 return $s;
1123         }
1124
1125         function logoText( $align = '' ) {
1126                 if ( '' != $align ) { $a = " align='{$align}'"; }
1127                 else { $a = ''; }
1128
1129                 $mp = wfMsg( 'mainpage' );
1130                 $titleObj = Title::newFromText( $mp );
1131                 if ( is_object( $titleObj ) ) {
1132                         $url = $titleObj->escapeLocalURL();
1133                 } else {
1134                         $url = '';
1135                 }
1136
1137                 $logourl = $this->getLogo();
1138                 $s = "<a href='{$url}'><img{$a} src='{$logourl}' alt='[{$mp}]' /></a>";
1139                 return $s;
1140         }
1141
1142         /**
1143          * show a drop-down box of special pages
1144          */
1145         function specialPagesList() {
1146                 global $wgUser, $wgContLang, $wgServer, $wgRedirectScript;
1147                 $a = array();
1148                 $pages = array_merge( SpecialPage::getRegularPages(), SpecialPage::getRestrictedPages() );
1149                 foreach ( $pages as $name => $page ) {
1150                         $pages[$name] = $page->getDescription();
1151                 }
1152
1153                 $go = wfMsg( 'go' );
1154                 $sp = wfMsg( 'specialpages' );
1155                 $spp = $wgContLang->specialPage( 'Specialpages' );
1156
1157                 $s = '<form id="specialpages" method="get" class="inline" ' .
1158                   'action="' . htmlspecialchars( "{$wgServer}{$wgRedirectScript}" ) . "\">\n";
1159                 $s .= "<select name=\"wpDropdown\">\n";
1160                 $s .= "<option value=\"{$spp}\">{$sp}</option>\n";
1161
1162
1163                 foreach ( $pages as $name => $desc ) {
1164                         $p = $wgContLang->specialPage( $name );
1165                         $s .= "<option value=\"{$p}\">{$desc}</option>\n";
1166                 }
1167                 $s .= "</select>\n";
1168                 $s .= "<input type='submit' value=\"{$go}\" name='redirect' />\n";
1169                 $s .= "</form>\n";
1170                 return $s;
1171         }
1172
1173         function mainPageLink() {
1174                 $mp = wfMsgForContent( 'mainpage' );
1175                 $mptxt = wfMsg( 'mainpage');
1176                 $s = $this->makeKnownLink( $mp, $mptxt );
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->userCanEdit() ) {
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
1281                 if ( $wgOut->isArticleRelated() ) {
1282                         if ( $wgTitle->userIsWatching() ) {
1283                                 $t = wfMsg( 'unwatchthispage' );
1284                                 $q = 'action=unwatch';
1285                         } else {
1286                                 $t = wfMsg( 'watchthispage' );
1287                                 $q = 'action=watch';
1288                         }
1289                         $s = $this->makeKnownLinkObj( $wgTitle, $t, $q );
1290                 } else {
1291                         $s = wfMsg( 'notanarticle' );
1292                 }
1293                 return $s;
1294         }
1295
1296         function moveThisPage() {
1297                 global $wgTitle;
1298
1299                 if ( $wgTitle->userCanMove() ) {
1300                         return $this->makeKnownLinkObj( SpecialPage::getTitleFor( 'Movepage' ),
1301                           wfMsg( 'movethispage' ), 'target=' . $wgTitle->getPrefixedURL() );
1302                 } else {
1303                         // no message if page is protected - would be redundant
1304                         return '';
1305                 }
1306         }
1307
1308         function historyLink() {
1309                 global $wgTitle;
1310
1311                 return $this->makeKnownLinkObj( $wgTitle,
1312                   wfMsg( 'history' ), 'action=history' );
1313         }
1314
1315         function whatLinksHere() {
1316                 global $wgTitle;
1317
1318                 return $this->makeKnownLinkObj(
1319                         SpecialPage::getTitleFor( 'Whatlinkshere', $wgTitle->getPrefixedDBkey() ),
1320                         wfMsg( 'whatlinkshere' ) );
1321         }
1322
1323         function userContribsLink() {
1324                 global $wgTitle;
1325
1326                 return $this->makeKnownLinkObj(
1327                         SpecialPage::getTitleFor( 'Contributions', $wgTitle->getDBkey() ),
1328                         wfMsg( 'contributions' ) );
1329         }
1330
1331         function showEmailUser( $id ) {
1332                 global $wgEnableEmail, $wgEnableUserEmail, $wgUser;
1333                 return $wgEnableEmail &&
1334                        $wgEnableUserEmail &&
1335                        $wgUser->isLoggedIn() && # show only to signed in users
1336                        0 != $id; # we can only email to non-anons ..
1337 #                      '' != $id->getEmail() && # who must have an email address stored ..
1338 #                      0 != $id->getEmailauthenticationtimestamp() && # .. which is authenticated
1339 #                      1 != $wgUser->getOption('disablemail'); # and not disabled
1340         }
1341
1342         function emailUserLink() {
1343                 global $wgTitle;
1344
1345                 return $this->makeKnownLinkObj(
1346                         SpecialPage::getTitleFor( 'Emailuser', $wgTitle->getDBkey() ),
1347                         wfMsg( 'emailuser' ) );
1348         }
1349
1350         function watchPageLinksLink() {
1351                 global $wgOut, $wgTitle;
1352
1353                 if ( ! $wgOut->isArticleRelated() ) {
1354                         return '(' . wfMsg( 'notanarticle' ) . ')';
1355                 } else {
1356                         return $this->makeKnownLinkObj(
1357                                 SpecialPage::getTitleFor( 'Recentchangeslinked', $wgTitle->getPrefixedDBkey() ),
1358                                 wfMsg( 'recentchangeslinked' ) );
1359                 }
1360         }
1361
1362         function trackbackLink() {
1363                 global $wgTitle;
1364
1365                 return "<a href=\"" . $wgTitle->trackbackURL() . "\">"
1366                         . wfMsg('trackbacklink') . "</a>";
1367         }
1368
1369         function otherLanguages() {
1370                 global $wgOut, $wgContLang, $wgHideInterlanguageLinks;
1371
1372                 if ( $wgHideInterlanguageLinks ) {
1373                         return '';
1374                 }
1375
1376                 $a = $wgOut->getLanguageLinks();
1377                 if ( 0 == count( $a ) ) {
1378                         return '';
1379                 }
1380
1381                 $s = wfMsg( 'otherlanguages' ) . ': ';
1382                 $first = true;
1383                 if($wgContLang->isRTL()) $s .= '<span dir="LTR">';
1384                 foreach( $a as $l ) {
1385                         if ( ! $first ) { $s .= ' | '; }
1386                         $first = false;
1387
1388                         $nt = Title::newFromText( $l );
1389                         $url = $nt->escapeFullURL();
1390                         $text = $wgContLang->getLanguageName( $nt->getInterwiki() );
1391
1392                         if ( '' == $text ) { $text = $l; }
1393                         $style = $this->getExternalLinkAttributes( $l, $text );
1394                         $s .= "<a href=\"{$url}\"{$style}>{$text}</a>";
1395                 }
1396                 if($wgContLang->isRTL()) $s .= '</span>';
1397                 return $s;
1398         }
1399
1400         function bugReportsLink() {
1401                 $s = $this->makeKnownLink( wfMsgForContent( 'bugreportspage' ),
1402                   wfMsg( 'bugreports' ) );
1403                 return $s;
1404         }
1405
1406         function dateLink() {
1407                 $t1 = Title::newFromText( gmdate( 'F j' ) );
1408                 $t2 = Title::newFromText( gmdate( 'Y' ) );
1409
1410                 $id = $t1->getArticleID();
1411
1412                 if ( 0 == $id ) {
1413                         $s = $this->makeBrokenLink( $t1->getText() );
1414                 } else {
1415                         $s = $this->makeKnownLink( $t1->getText() );
1416                 }
1417                 $s .= ', ';
1418
1419                 $id = $t2->getArticleID();
1420
1421                 if ( 0 == $id ) {
1422                         $s .= $this->makeBrokenLink( $t2->getText() );
1423                 } else {
1424                         $s .= $this->makeKnownLink( $t2->getText() );
1425                 }
1426                 return $s;
1427         }
1428
1429         function talkLink() {
1430                 global $wgTitle;
1431
1432                 if ( NS_SPECIAL == $wgTitle->getNamespace() ) {
1433                         # No discussion links for special pages
1434                         return '';
1435                 }
1436
1437                 if( $wgTitle->isTalkPage() ) {
1438                         $link = $wgTitle->getSubjectPage();
1439                         switch( $link->getNamespace() ) {
1440                                 case NS_MAIN:
1441                                         $text = wfMsg( 'articlepage' );
1442                                         break;
1443                                 case NS_USER:
1444                                         $text = wfMsg( 'userpage' );
1445                                         break;
1446                                 case NS_PROJECT:
1447                                         $text = wfMsg( 'projectpage' );
1448                                         break;
1449                                 case NS_IMAGE:
1450                                         $text = wfMsg( 'imagepage' );
1451                                         break;
1452                                 case NS_MEDIAWIKI:
1453                                         $text = wfMsg( 'mediawikipage' );
1454                                         break;
1455                                 case NS_TEMPLATE:
1456                                         $text = wfMsg( 'templatepage' );
1457                                         break;
1458                                 case NS_HELP:
1459                                         $text = wfMsg( 'viewhelppage' );
1460                                         break;
1461                                 case NS_CATEGORY:
1462                                         $text = wfMsg( 'categorypage' );
1463                                         break;
1464                                 default:
1465                                         $text = wfMsg( 'articlepage' );
1466                         }
1467                 } else {
1468                         $link = $wgTitle->getTalkPage();
1469                         $text = wfMsg( 'talkpage' );
1470                 }
1471
1472                 $s = $this->makeLinkObj( $link, $text );
1473
1474                 return $s;
1475         }
1476
1477         function commentLink() {
1478                 global $wgTitle, $wgOut;
1479
1480                 if ( $wgTitle->getNamespace() == NS_SPECIAL ) {
1481                         return '';
1482                 }
1483
1484                 # __NEWSECTIONLINK___ changes behaviour here
1485                 # If it's present, the link points to this page, otherwise
1486                 # it points to the talk page
1487                 if( $wgTitle->isTalkPage() ) {
1488                         $title =& $wgTitle;
1489                 } elseif( $wgOut->showNewSectionLink() ) {
1490                         $title =& $wgTitle;
1491                 } else {
1492                         $title =& $wgTitle->getTalkPage();
1493                 }
1494
1495                 return $this->makeKnownLinkObj( $title, wfMsg( 'postcomment' ), 'action=edit&section=new' );
1496         }
1497
1498         /* these are used extensively in SkinTemplate, but also some other places */
1499         static function makeSpecialUrl( $name, $urlaction = '' ) {
1500                 $title = SpecialPage::getTitleFor( $name );
1501                 return $title->getLocalURL( $urlaction );
1502         }
1503
1504         static function makeI18nUrl( $name, $urlaction = '' ) {
1505                 $title = Title::newFromText( wfMsgForContent( $name ) );
1506                 self::checkTitle( $title, $name );
1507                 return $title->getLocalURL( $urlaction );
1508         }
1509
1510         static function makeUrl( $name, $urlaction = '' ) {
1511                 $title = Title::newFromText( $name );
1512                 self::checkTitle( $title, $name );
1513                 return $title->getLocalURL( $urlaction );
1514         }
1515
1516         # If url string starts with http, consider as external URL, else
1517         # internal
1518         static function makeInternalOrExternalUrl( $name ) {
1519                 if ( preg_match( '/^(?:' . wfUrlProtocols() . ')/', $name ) ) {
1520                         return $name;
1521                 } else {
1522                         return self::makeUrl( $name );
1523                 }
1524         }
1525
1526         # this can be passed the NS number as defined in Language.php
1527         static function makeNSUrl( $name, $urlaction = '', $namespace = NS_MAIN ) {
1528                 $title = Title::makeTitleSafe( $namespace, $name );
1529                 self::checkTitle( $title, $name );
1530                 return $title->getLocalURL( $urlaction );
1531         }
1532
1533         /* these return an array with the 'href' and boolean 'exists' */
1534         static function makeUrlDetails( $name, $urlaction = '' ) {
1535                 $title = Title::newFromText( $name );
1536                 self::checkTitle( $title, $name );
1537                 return array(
1538                         'href' => $title->getLocalURL( $urlaction ),
1539                         'exists' => $title->getArticleID() != 0 ? true : false
1540                 );
1541         }
1542
1543         /**
1544          * Make URL details where the article exists (or at least it's convenient to think so)
1545          */
1546         static function makeKnownUrlDetails( $name, $urlaction = '' ) {
1547                 $title = Title::newFromText( $name );
1548                 self::checkTitle( $title, $name );
1549                 return array(
1550                         'href' => $title->getLocalURL( $urlaction ),
1551                         'exists' => true
1552                 );
1553         }
1554
1555         # make sure we have some title to operate on
1556         static function checkTitle( &$title, &$name ) {
1557                 if( !is_object( $title ) ) {
1558                         $title = Title::newFromText( $name );
1559                         if( !is_object( $title ) ) {
1560                                 $title = Title::newFromText( '--error: link target missing--' );
1561                         }
1562                 }
1563         }
1564
1565         /**
1566          * Build an array that represents the sidebar(s), the navigation bar among them
1567          *
1568          * @return array
1569          * @private
1570          */
1571         function buildSidebar() {
1572                 global $parserMemc, $wgEnableSidebarCache;
1573                 global $wgLang, $wgContLang;
1574
1575                 $fname = 'SkinTemplate::buildSidebar';
1576
1577                 wfProfileIn( $fname );
1578
1579                 $key = wfMemcKey( 'sidebar' );
1580                 $cacheSidebar = $wgEnableSidebarCache &&
1581                         ($wgLang->getCode() == $wgContLang->getCode());
1582
1583                 if ($cacheSidebar) {
1584                         $cachedsidebar = $parserMemc->get( $key );
1585                         if ($cachedsidebar!="") {
1586                                 wfProfileOut($fname);
1587                                 return $cachedsidebar;
1588                         }
1589                 }
1590
1591                 $bar = array();
1592                 $lines = explode( "\n", wfMsgForContent( 'sidebar' ) );
1593                 foreach ($lines as $line) {
1594                         if (strpos($line, '*') !== 0)
1595                                 continue;
1596                         if (strpos($line, '**') !== 0) {
1597                                 $line = trim($line, '* ');
1598                                 $heading = $line;
1599                         } else {
1600                                 if (strpos($line, '|') !== false) { // sanity check
1601                                         $line = explode( '|' , trim($line, '* '), 2 );
1602                                         $link = wfMsgForContent( $line[0] );
1603                                         if ($link == '-')
1604                                                 continue;
1605                                         if (wfEmptyMsg($line[1], $text = wfMsg($line[1])))
1606                                                 $text = $line[1];
1607                                         if (wfEmptyMsg($line[0], $link))
1608                                                 $link = $line[0];
1609
1610                                         if ( preg_match( '/^(?:' . wfUrlProtocols() . ')/', $link ) ) {
1611                                                 $href = $link;
1612                                         } else {
1613                                                 $title = Title::newFromText( $link );
1614                                                 if ( $title ) {
1615                                                         $title = $title->fixSpecialName();
1616                                                         $href = $title->getLocalURL();
1617                                                 } else {
1618                                                         $href = 'INVALID-TITLE';
1619                                                 }
1620                                         }
1621
1622                                         $bar[$heading][] = array(
1623                                                 'text' => $text,
1624                                                 'href' => $href,
1625                                                 'id' => 'n-' . strtr($line[1], ' ', '-'),
1626                                                 'active' => false
1627                                         );
1628                                 } else { continue; }
1629                         }
1630                 }
1631                 if ($cacheSidebar)
1632                         $cachednotice = $parserMemc->set( $key, $bar, 86400 );
1633                 wfProfileOut( $fname );
1634                 return $bar;
1635         }
1636 }
1637 ?>