includes/Skin.php

   1 <?php
   2 if ( ! defined( 'MEDIAWIKI' ) )
   3         die( 1 );
   4
   5 /**
   6  *
   7  * @package MediaWiki
   8  * @subpackage Skins
   9  */
  10
  11 # See skin.txt
  12
  13 /**
  14  * The main skin class that provide methods and properties for all other skins.
  15  * This base class is also the "Standard" skin.
  16  * @package MediaWiki
  17  */
  18 class Skin extends Linker {
  19         /**#@+
  20          * @private
  21          */
  22         var $lastdate, $lastline;
  23         var $rc_cache ; # Cache for Enhanced Recent Changes
  24         var $rcCacheIndex ; # Recent Changes Cache Counter for visibility toggle
  25         var $rcMoveIndex;
  26         /**#@-*/
  27
  28         /** Constructor, call parent constructor */
  29         function Skin() { parent::Linker(); }
  30
  31         /**
  32          * Fetch the set of available skins.
  33          * @return array of strings
  34          * @static
  35          */
  36         static function &getSkinNames() {
  37                 global $wgValidSkinNames;
  38                 static $skinsInitialised = false;
  39                 if ( !$skinsInitialised ) {
  40                         # Get a list of available skins
  41                         # Build using the regular expression '^(.*).php$'
  42                         # Array keys are all lower case, array value keep the case used by filename
  43                         #
  44                         wfProfileIn( __METHOD__ . '-init' );
  45                         global $wgStyleDirectory;
  46                         $skinDir = dir( $wgStyleDirectory );
  47
  48                         # while code from www.php.net
  49                         while (false !== ($file = $skinDir->read())) {
  50                                 // Skip non-PHP files, hidden files, and '.dep' includes
  51                                 if(preg_match('/^([^.]*)\.php$/',$file, $matches)) {
  52                                         $aSkin = $matches[1];
  53                                         $wgValidSkinNames[strtolower($aSkin)] = $aSkin;
  54                                 }
  55                         }
  56                         $skinDir->close();
  57                         $skinsInitialised = true;
  58                         wfProfileOut( __METHOD__ . '-init' );
  59                 }
  60                 return $wgValidSkinNames;
  61         }
  62
  63         /**
  64          * Normalize a skin preference value to a form that can be loaded.
  65          * If a skin can't be found, it will fall back to the configured
  66          * default (or the old 'Classic' skin if that's broken).
  67          * @param string $key
  68          * @return string
  69          * @static
  70          */
  71         static function normalizeKey( $key ) {
  72                 global $wgDefaultSkin;
  73                 $skinNames = Skin::getSkinNames();
  74
  75                 if( $key == '' ) {
  76                         // Don't return the default immediately;
  77                         // in a misconfiguration we need to fall back.
  78                         $key = $wgDefaultSkin;
  79                 }
  80
  81                 if( isset( $skinNames[$key] ) ) {
  82                         return $key;
  83                 }
  84
  85                 // Older versions of the software used a numeric setting
  86                 // in the user preferences.
  87                 $fallback = array(
  88                         0 => $wgDefaultSkin,
  89                         1 => 'nostalgia',
  90                         2 => 'cologneblue' );
  91
  92                 if( isset( $fallback[$key] ) ){
  93                         $key = $fallback[$key];
  94                 }
  95
  96                 if( isset( $skinNames[$key] ) ) {
  97                         return $key;
  98                 } else {
  99                         // The old built-in skin
 100                         return 'standard';
 101                 }
 102         }
 103
 104         /**
 105          * Factory method for loading a skin of a given type
 106          * @param string $key 'monobook', 'standard', etc
 107          * @return Skin
 108          * @static
 109          */
 110         static function &newFromKey( $key ) {
 111                 global $wgStyleDirectory;
 112
 113                 $key = Skin::normalizeKey( $key );
 114
 115                 $skinNames = Skin::getSkinNames();
 116                 $skinName = $skinNames[$key];
 117
 118                 # Grab the skin class and initialise it.
 119                 wfSuppressWarnings();
 120                 // Preload base classes to work around APC/PHP5 bug
 121                 include_once( "{$wgStyleDirectory}/{$skinName}.deps.php" );
 122                 wfRestoreWarnings();
 123                 require_once( "{$wgStyleDirectory}/{$skinName}.php" );
 124
 125                 # Check if we got if not failback to default skin
 126                 $className = 'Skin'.$skinName;
 127                 if( !class_exists( $className ) ) {
 128                         # DO NOT die if the class isn't found. This breaks maintenance
 129                         # scripts and can cause a user account to be unrecoverable
 130                         # except by SQL manipulation if a previously valid skin name
 131                         # is no longer valid.
 132                         wfDebug( "Skin class does not exist: $className\n" );
 133                         $className = 'SkinStandard';
 134                         require_once( "{$wgStyleDirectory}/Standard.php" );
 135                 }
 136                 $skin = new $className;
 137                 return $skin;
 138         }
 139
 140         /** @return string path to the skin stylesheet */
 141         function getStylesheet() {
 142                 return 'common/wikistandard.css';
 143         }
 144
 145         /** @return string skin name */
 146         function getSkinName() {
 147                 return 'standard';
 148         }
 149
 150         function qbSetting() {
 151                 global $wgOut, $wgUser;
 152
 153                 if ( $wgOut->isQuickbarSuppressed() ) { return 0; }
 154                 $q = $wgUser->getOption( 'quickbar' );
 155                 if ( '' == $q ) { $q = 0; }
 156                 return $q;
 157         }
 158
 159         function initPage( &$out ) {
 160                 global $wgFavicon, $wgScriptPath, $wgSitename, $wgLanguageCode, $wgLanguageNames;
 161
 162                 $fname = 'Skin::initPage';
 163                 wfProfileIn( $fname );
 164
 165                 if( false !== $wgFavicon ) {
 166                         $out->addLink( array( 'rel' => 'shortcut icon', 'href' => $wgFavicon ) );
 167                 }
 168
 169                 # OpenSearch description link
 170                 $out->addLink( array(
 171                         'rel' => 'search',
 172                         'type' => 'application/opensearchdescription+xml',
 173                         'href' => "$wgScriptPath/opensearch_desc.php",
 174                         'title' => "$wgSitename ({$wgLanguageNames[$wgLanguageCode]})",
 175                 ));
 176
 177                 $this->addMetadataLinks($out);
 178
 179                 $this->mRevisionId = $out->mRevisionId;
 180
 181                 $this->preloadExistence();
 182
 183                 wfProfileOut( $fname );
 184         }
 185
 186         /**
 187          * Preload the existence of three commonly-requested pages in a single query
 188          */
 189         function preloadExistence() {
 190                 global $wgUser, $wgTitle;
 191
 192                 if ( $wgTitle->isTalkPage() ) {
 193                         $otherTab = $wgTitle->getSubjectPage();
 194                 } else {
 195                         $otherTab = $wgTitle->getTalkPage();
 196                 }
 197                 $lb = new LinkBatch( array(
 198                         $wgUser->getUserPage(),
 199                         $wgUser->getTalkPage(),
 200                         $otherTab
 201                 ));
 202                 $lb->execute();
 203         }
 204
 205         function addMetadataLinks( &$out ) {
 206                 global $wgTitle, $wgEnableDublinCoreRdf, $wgEnableCreativeCommonsRdf;
 207                 global $wgRightsPage, $wgRightsUrl;
 208
 209                 if( $out->isArticleRelated() ) {
 210                         # note: buggy CC software only reads first "meta" link
 211                         if( $wgEnableCreativeCommonsRdf ) {
 212                                 $out->addMetadataLink( array(
 213                                         'title' => 'Creative Commons',
 214                                         'type' => 'application/rdf+xml',
 215                                         'href' => $wgTitle->getLocalURL( 'action=creativecommons') ) );
 216                         }
 217                         if( $wgEnableDublinCoreRdf ) {
 218                                 $out->addMetadataLink( array(
 219                                         'title' => 'Dublin Core',
 220                                         'type' => 'application/rdf+xml',
 221                                         'href' => $wgTitle->getLocalURL( 'action=dublincore' ) ) );
 222                         }
 223                 }
 224                 $copyright = '';
 225                 if( $wgRightsPage ) {
 226                         $copy = Title::newFromText( $wgRightsPage );
 227                         if( $copy ) {
 228                                 $copyright = $copy->getLocalURL();
 229                         }
 230                 }
 231                 if( !$copyright && $wgRightsUrl ) {
 232                         $copyright = $wgRightsUrl;
 233                 }
 234                 if( $copyright ) {
 235                         $out->addLink( array(
 236                                 'rel' => 'copyright',
 237                                 'href' => $copyright ) );
 238                 }
 239         }
 240
 241         function outputPage( &$out ) {
 242                 global $wgDebugComments;
 243
 244                 wfProfileIn( 'Skin::outputPage' );
 245                 $this->initPage( $out );
 246
 247                 $out->out( $out->headElement() );
 248
 249                 $out->out( "\n<body" );
 250                 $ops = $this->getBodyOptions();
 251                 foreach ( $ops as $name => $val ) {
 252                         $out->out( " $name='$val'" );
 253                 }
 254                 $out->out( ">\n" );
 255                 if ( $wgDebugComments ) {
 256                         $out->out( "<!-- Wiki debugging output:\n" .
 257                           $out->mDebugtext . "-->\n" );
 258                 }
 259
 260                 $out->out( $this->beforeContent() );
 261
 262                 $out->out( $out->mBodytext . "\n" );
 263
 264                 $out->out( $this->afterContent() );
 265
 266                 $out->out( $this->bottomScripts() );
 267
 268                 $out->out( $out->reportTime() );
 269
 270                 $out->out( "\n</body></html>" );
 271         }
 272
 273         static function makeGlobalVariablesScript( $data ) {
 274                 $r = '<script type= "' . $data['jsmimetype'] . '">
 275                         var skin = "' . Xml::escapeJsString( $data['skinname'] ) . '";
 276                         var stylepath = "' . Xml::escapeJsString( $data['stylepath'] ) . '";
 277
 278                         var wgArticlePath = "' . Xml::escapeJsString( $data['articlepath'] ) . '";
 279                         var wgScriptPath = "' . Xml::escapeJsString( $data['scriptpath'] ) . '";
 280                         var wgServer = "' . Xml::escapeJsString( $data['serverurl'] ) . '";
 281
 282                         var wgCanonicalNamespace = "' . Xml::escapeJsString( $data['nscanonical'] ) . '";
 283                         var wgNamespaceNumber = ' . (int)$data['nsnumber'] . ';
 284                         var wgPageName = "' . Xml::escapeJsString( $data['titleprefixeddbkey'] ) . '";
 285                         var wgTitle = "' . Xml::escapeJsString( $data['titletext'] ) . '";
 286                         var wgArticleId = ' . (int)$data['articleid'] . ';
 287                         var wgIsArticle = ' . ( $data['isarticle'] ? 'true' : 'false' ) . ';
 288
 289                         var wgUserName = ' . ( $data['username'] == NULL ? 'null' : ( '"' . Xml::escapeJsString( $data['username'] ) . '"' ) ) . ';
 290                         var wgUserLanguage = "' . Xml::escapeJsString( $data['userlang'] ) . '";
 291                         var wgContentLanguage = "' . Xml::escapeJsString( $data['lang'] ) . '";
 292                 </script>
 293                 ';
 294
 295                 return $r;
 296         }
 297
 298         function getHeadScripts() {
 299                 global $wgStylePath, $wgUser, $wgAllowUserJs, $wgJsMimeType, $wgStyleVersion;
 300                 global $wgArticlePath, $wgScriptPath, $wgServer, $wgContLang, $wgLang;
 301                 global $wgTitle, $wgCanonicalNamespaceNames, $wgOut;
 302
 303                 $nsname = @$wgCanonicalNamespaceNames[ $wgTitle->getNamespace() ];
 304                 if ( $nsname === NULL ) $nsname = $wgTitle->getNsText();
 305
 306                 $vars = array(
 307                         'jsmimetype' => $wgJsMimeType,
 308                         'skinname' => $this->getSkinName(),
 309                         'stylepath' => $wgStylePath,
 310                         'articlepath' => $wgArticlePath,
 311                         'scriptpath' => $wgScriptPath,
 312                         'serverurl' => $wgServer,
 313                         'nscanonical' => $nsname,
 314                         'nsnumber' => $wgTitle->getNamespace(),
 315                         'titleprefixeddbkey' => $wgTitle->getPrefixedDBKey(),
 316                         'titletext' => $wgTitle->getText(),
 317                         'articleid' => $wgTitle->getArticleId(),
 318                         'isarticle' => $wgOut->isArticle(),
 319                         'username' => $wgUser->isAnon() ? NULL : $wgUser->getName(),
 320                         'userlang' => $wgLang->getCode(),
 321                         'lang' => $wgContLang->getCode(),
 322                 );
 323
 324                 $r = self::makeGlobalVariablesScript( $vars );
 325
 326                 $r .= "<script type=\"{$wgJsMimeType}\" src=\"{$wgStylePath}/common/wikibits.js?$wgStyleVersion\"></script>\n";
 327                 if( $wgAllowUserJs && $wgUser->isLoggedIn() ) {
 328                         $userpage = $wgUser->getUserPage();
 329                         $userjs = htmlspecialchars( self::makeUrl(
 330                                 $userpage->getPrefixedText().'/'.$this->getSkinName().'.js',
 331                                 'action=raw&ctype='.$wgJsMimeType));
 332                         $r .= '<script type="'.$wgJsMimeType.'" src="'.$userjs."\"></script>\n";
 333                 }
 334                 return $r;
 335         }
 336
 337         /**
 338          * To make it harder for someone to slip a user a fake
 339          * user-JavaScript or user-CSS preview, a random token
 340          * is associated with the login session. If it's not
 341          * passed back with the preview request, we won't render
 342          * the code.
 343          *
 344          * @param string $action
 345          * @return bool
 346          * @private
 347          */
 348         function userCanPreview( $action ) {
 349                 global $wgTitle, $wgRequest, $wgUser;
 350
 351                 if( $action != 'submit' )
 352                         return false;
 353                 if( !$wgRequest->wasPosted() )
 354                         return false;
 355                 if( !$wgTitle->userCanEditCssJsSubpage() )
 356                         return false;
 357                 return $wgUser->matchEditToken(
 358                         $wgRequest->getVal( 'wpEditToken' ) );
 359         }
 360
 361         # get the user/site-specific stylesheet, SkinTemplate loads via RawPage.php (settings are cached that way)
 362         function getUserStylesheet() {
 363                 global $wgStylePath, $wgRequest, $wgContLang, $wgSquidMaxage, $wgStyleVersion;
 364                 $sheet = $this->getStylesheet();
 365                 $action = $wgRequest->getText('action');
 366                 $s = "@import \"$wgStylePath/$sheet?$wgStyleVersion\";\n";
 367                 if($wgContLang->isRTL()) $s .= "@import \"$wgStylePath/common/common_rtl.css?$wgStyleVersion\";\n";
 368
 369                 $query = "usemsgcache=yes&action=raw&ctype=text/css&smaxage=$wgSquidMaxage";
 370                 $s .= '@import "' . self::makeNSUrl( 'Common.css', $query, NS_MEDIAWIKI ) . "\";\n" .
 371                         '@import "' . self::makeNSUrl( ucfirst( $this->getSkinName() . '.css' ), $query, NS_MEDIAWIKI ) . "\";\n";
 372
 373                 $s .= $this->doGetUserStyles();
 374                 return $s."\n";
 375         }
 376
 377         /**
 378          * placeholder, returns generated js in monobook
 379          */
 380         function getUserJs() { return; }
 381
 382         /**
 383          * Return html code that include User stylesheets
 384          */
 385         function getUserStyles() {
 386                 $s = "<style type='text/css'>\n";
 387                 $s .= "/*/*/ /*<![CDATA[*/\n"; # <-- Hide the styles from Netscape 4 without hiding them from IE/Mac
 388                 $s .= $this->getUserStylesheet();
 389                 $s .= "/*]]>*/ /* */\n";
 390                 $s .= "</style>\n";
 391                 return $s;
 392         }
 393
 394         /**
 395          * Some styles that are set by user through the user settings interface.
 396          */
 397         function doGetUserStyles() {
 398                 global $wgUser, $wgUser, $wgRequest, $wgTitle, $wgAllowUserCss;
 399
 400                 $s = '';
 401
 402                 if( $wgAllowUserCss && $wgUser->isLoggedIn() ) { # logged in
 403                         if($wgTitle->isCssSubpage() && $this->userCanPreview( $wgRequest->getText( 'action' ) ) ) {
 404                                 $s .= $wgRequest->getText('wpTextbox1');
 405                         } else {
 406                                 $userpage = $wgUser->getUserPage();
 407                                 $s.= '@import "'.self::makeUrl(
 408                                         $userpage->getPrefixedText().'/'.$this->getSkinName().'.css',
 409                                         'action=raw&ctype=text/css').'";'."\n";
 410                         }
 411                 }
 412
 413                 return $s . $this->reallyDoGetUserStyles();
 414         }
 415
 416         function reallyDoGetUserStyles() {
 417                 global $wgUser;
 418                 $s = '';
 419                 if (($undopt = $wgUser->getOption("underline")) != 2) {
 420                         $underline = $undopt ? 'underline' : 'none';
 421                         $s .= "a { text-decoration: $underline; }\n";
 422                 }
 423                 if( $wgUser->getOption( 'highlightbroken' ) ) {
 424                         $s .= "a.new, #quickbar a.new { color: #CC2200; }\n";
 425                 } else {
 426                         $s .= <<<END
 427 a.new, #quickbar a.new,
 428 a.stub, #quickbar a.stub {
 429         color: inherit;
 430         text-decoration: inherit;
 431 }
 432 a.new:after, #quickbar a.new:after {
 433         content: "?";
 434         color: #CC2200;
 435         text-decoration: $underline;
 436 }
 437 a.stub:after, #quickbar a.stub:after {
 438         content: "!";
 439         color: #772233;
 440         text-decoration: $underline;
 441 }
 442 END;
 443                 }
 444                 if( $wgUser->getOption( 'justify' ) ) {
 445                         $s .= "#article, #bodyContent { text-align: justify; }\n";
 446                 }
 447                 if( !$wgUser->getOption( 'showtoc' ) ) {
 448                         $s .= "#toc { display: none; }\n";
 449                 }
 450                 if( !$wgUser->getOption( 'editsection' ) ) {
 451                         $s .= ".editsection { display: none; }\n";
 452                 }
 453                 return $s;
 454         }
 455
 456         function getBodyOptions() {
 457                 global $wgUser, $wgTitle, $wgOut, $wgRequest, $wgContLang;
 458
 459                 extract( $wgRequest->getValues( 'oldid', 'redirect', 'diff' ) );
 460
 461                 if ( 0 != $wgTitle->getNamespace() ) {
 462                         $a = array( 'bgcolor' => '#ffffec' );
 463                 }
 464                 else $a = array( 'bgcolor' => '#FFFFFF' );
 465                 if($wgOut->isArticle() && $wgUser->getOption('editondblclick') &&
 466                   $wgTitle->userCanEdit() ) {
 467                         $t = wfMsg( 'editthispage' );
 468                         $s = $wgTitle->getFullURL( $this->editUrlOptions() );
 469                         $s = 'document.location = "' .wfEscapeJSString( $s ) .'";';
 470                         $a += array ('ondblclick' => $s);
 471
 472                 }
 473                 $a['onload'] = $wgOut->getOnloadHandler();
 474                 if( $wgUser->getOption( 'editsectiononrightclick' ) ) {
 475                         if( $a['onload'] != '' ) {
 476                                 $a['onload'] .= ';';
 477                         }
 478                         $a['onload'] .= 'setupRightClickEdit()';
 479                 }
 480                 $a['class'] = 'ns-'.$wgTitle->getNamespace().' '.($wgContLang->isRTL() ? "rtl" : "ltr").
 481                 ' page-'.Sanitizer::escapeId( $wgTitle->getPrefixedText() );
 482                 return $a;
 483         }
 484
 485         /**
 486          * URL to the logo
 487          */
 488         function getLogo() {
 489                 global $wgLogo;
 490                 return $wgLogo;
 491         }
 492
 493         /**
 494          * This will be called immediately after the <body> tag.  Split into
 495          * two functions to make it easier to subclass.
 496          */
 497         function beforeContent() {
 498                 return $this->doBeforeContent();
 499         }
 500
 501         function doBeforeContent() {
 502                 global $wgContLang;
 503                 $fname = 'Skin::doBeforeContent';
 504                 wfProfileIn( $fname );
 505
 506                 $s = '';
 507                 $qb = $this->qbSetting();
 508
 509                 if( $langlinks = $this->otherLanguages() ) {
 510                         $rows = 2;
 511                         $borderhack = '';
 512                 } else {
 513                         $rows = 1;
 514                         $langlinks = false;
 515                         $borderhack = 'class="top"';
 516                 }
 517
 518                 $s .= "\n<div id='content'>\n<div id='topbar'>\n" .
 519                   "<table border='0' cellspacing='0' width='98%'>\n<tr>\n";
 520
 521                 $shove = ($qb != 0);
 522                 $left = ($qb == 1 || $qb == 3);
 523                 if($wgContLang->isRTL()) $left = !$left;
 524
 525                 if ( !$shove ) {
 526                         $s .= "<td class='top' align='left' valign='top' rowspan='{$rows}'>\n" .
 527                           $this->logoText() . '</td>';
 528                 } elseif( $left ) {
 529                         $s .= $this->getQuickbarCompensator( $rows );
 530                 }
 531                 $l = $wgContLang->isRTL() ? 'right' : 'left';
 532                 $s .= "<td {$borderhack} align='$l' valign='top'>\n";
 533
 534                 $s .= $this->topLinks() ;
 535                 $s .= "<p class='subtitle'>" . $this->pageTitleLinks() . "</p>\n";
 536
 537                 $r = $wgContLang->isRTL() ? "left" : "right";
 538                 $s .= "</td>\n<td {$borderhack} valign='top' align='$r' nowrap='nowrap'>";
 539                 $s .= $this->nameAndLogin();
 540                 $s .= "\n<br />" . $this->searchForm() . "</td>";
 541
 542                 if ( $langlinks ) {
 543                         $s .= "</tr>\n<tr>\n<td class='top' colspan=\"2\">$langlinks</td>\n";
 544                 }
 545
 546                 if ( $shove && !$left ) { # Right
 547                         $s .= $this->getQuickbarCompensator( $rows );
 548                 }
 549                 $s .= "</tr>\n</table>\n</div>\n";
 550                 $s .= "\n<div id='article'>\n";
 551
 552                 $notice = wfGetSiteNotice();
 553                 if( $notice ) {
 554                         $s .= "\n<div id='siteNotice'>$notice</div>\n";
 555                 }
 556                 $s .= $this->pageTitle();
 557                 $s .= $this->pageSubtitle() ;
 558                 $s .= $this->getCategories();
 559                 wfProfileOut( $fname );
 560                 return $s;
 561         }
 562
 563
 564         function getCategoryLinks () {
 565                 global $wgOut, $wgTitle, $wgUseCategoryBrowser;
 566                 global $wgContLang;
 567
 568                 if( count( $wgOut->mCategoryLinks ) == 0 ) return '';
 569
 570                 # Separator
 571                 $sep = wfMsgHtml( 'catseparator' );
 572
 573                 // Use Unicode bidi embedding override characters,
 574                 // to make sure links don't smash each other up in ugly ways.
 575                 $dir = $wgContLang->isRTL() ? 'rtl' : 'ltr';
 576                 $embed = "<span dir='$dir'>";
 577                 $pop = '</span>';
 578                 $t = $embed . implode ( "{$pop} {$sep} {$embed}" , $wgOut->mCategoryLinks ) . $pop;
 579
 580                 $msg = wfMsgExt( 'pagecategories', array( 'parsemag', 'escape' ), count( $wgOut->mCategoryLinks ) );
 581                 $s = $this->makeKnownLinkObj( Title::makeTitle( NS_SPECIAL, 'Categories' ),
 582                         $msg, 'article=' . urlencode( $wgTitle->getPrefixedDBkey() ) )
 583                         . ': ' . $t;
 584
 585                 # optional 'dmoz-like' category browser. Will be shown under the list
 586                 # of categories an article belong to
 587                 if($wgUseCategoryBrowser) {
 588                         $s .= '<br /><hr />';
 589
 590                         # get a big array of the parents tree
 591                         $parenttree = $wgTitle->getParentCategoryTree();
 592                         # Skin object passed by reference cause it can not be
 593                         # accessed under the method subfunction drawCategoryBrowser
 594                         $tempout = explode("\n", Skin::drawCategoryBrowser($parenttree, $this) );
 595                         # Clean out bogus first entry and sort them
 596                         unset($tempout[0]);
 597                         asort($tempout);
 598                         # Output one per line
 599                         $s .= implode("<br />\n", $tempout);
 600                 }
 601
 602                 return $s;
 603         }
 604
 605         /** Render the array as a serie of links.
 606          * @param $tree Array: categories tree returned by Title::getParentCategoryTree
 607          * @param &skin Object: skin passed by reference
 608          * @return String separated by &gt;, terminate with "\n"
 609          */
 610         function drawCategoryBrowser($tree, &$skin) {
 611                 $return = '';
 612                 foreach ($tree as $element => $parent) {
 613                         if (empty($parent)) {
 614                                 # element start a new list
 615                                 $return .= "\n";
 616                         } else {
 617                                 # grab the others elements
 618                                 $return .= Skin::drawCategoryBrowser($parent, $skin) . ' &gt; ';
 619                         }
 620                         # add our current element to the list
 621                         $eltitle = Title::NewFromText($element);
 622                         $return .=  $skin->makeLinkObj( $eltitle, $eltitle->getText() ) ;
 623                 }
 624                 return $return;
 625         }
 626
 627         function getCategories() {
 628                 $catlinks=$this->getCategoryLinks();
 629                 if(!empty($catlinks)) {
 630                         return "<p class='catlinks'>{$catlinks}</p>";
 631                 }
 632         }
 633
 634         function getQuickbarCompensator( $rows = 1 ) {
 635                 return "<td width='152' rowspan='{$rows}'>&nbsp;</td>";
 636         }
 637
 638         /**
 639          * This gets called shortly before the \</body\> tag.
 640          * @return String HTML to be put before \</body\>
 641          */
 642         function afterContent() {
 643                 $printfooter = "<div class=\"printfooter\">\n" . $this->printFooter() . "</div>\n";
 644                 return $printfooter . $this->doAfterContent();
 645         }
 646
 647         /**
 648          * This gets called shortly before the \</body\> tag.
 649          * @return String HTML-wrapped JS code to be put before \</body\>
 650          */
 651         function bottomScripts() {
 652                 global $wgJsMimeType;
 653                 return "\n\t\t<script type=\"$wgJsMimeType\">if (window.runOnloadHook) runOnloadHook();</script>\n";
 654         }
 655
 656         /** @return string Retrievied from HTML text */
 657         function printSource() {
 658                 global $wgTitle;
 659                 $url = htmlspecialchars( $wgTitle->getFullURL() );
 660                 return wfMsg( 'retrievedfrom', '<a href="'.$url.'">'.$url.'</a>' );
 661         }
 662
 663         function printFooter() {
 664                 return "<p>" .  $this->printSource() .
 665                         "</p>\n\n<p>" . $this->pageStats() . "</p>\n";
 666         }
 667
 668         /** overloaded by derived classes */
 669         function doAfterContent() { }
 670
 671         function pageTitleLinks() {
 672                 global $wgOut, $wgTitle, $wgUser, $wgRequest;
 673
 674                 extract( $wgRequest->getValues( 'oldid', 'diff' ) );
 675                 $action = $wgRequest->getText( 'action' );
 676
 677                 $s = $this->printableLink();
 678                 $disclaimer = $this->disclaimerLink(); # may be empty
 679                 if( $disclaimer ) {
 680                         $s .= ' | ' . $disclaimer;
 681                 }
 682                 $privacy = $this->privacyLink(); # may be empty too
 683                 if( $privacy ) {
 684                         $s .= ' | ' . $privacy;
 685                 }
 686
 687                 if ( $wgOut->isArticleRelated() ) {
 688                         if ( $wgTitle->getNamespace() == NS_IMAGE ) {
 689                                 $name = $wgTitle->getDBkey();
 690                                 $image = new Image( $wgTitle );
 691                                 if( $image->exists() ) {
 692                                         $link = htmlspecialchars( $image->getURL() );
 693                                         $style = $this->getInternalLinkAttributes( $link, $name );
 694                                         $s .= " | <a href=\"{$link}\"{$style}>{$name}</a>";
 695                                 }
 696                         }
 697                 }
 698                 if ( 'history' == $action || isset( $diff ) || isset( $oldid ) ) {
 699                         $s .= ' | ' . $this->makeKnownLinkObj( $wgTitle,
 700                                         wfMsg( 'currentrev' ) );
 701                 }
 702
 703                 if ( $wgUser->getNewtalk() ) {
 704                         # do not show "You have new messages" text when we are viewing our
 705                         # own talk page
 706                         if( !$wgTitle->equals( $wgUser->getTalkPage() ) ) {
 707                                 $tl = $this->makeKnownLinkObj( $wgUser->getTalkPage(), wfMsgHtml( 'newmessageslink' ), 'redirect=no' );
 708                                 $dl = $this->makeKnownLinkObj( $wgUser->getTalkPage(), wfMsgHtml( 'newmessagesdifflink' ), 'diff=cur' );
 709                                 $s.= ' | <strong>'. wfMsg( 'youhavenewmessages', $tl, $dl ) . '</strong>';
 710                                 # disable caching
 711                                 $wgOut->setSquidMaxage(0);
 712                                 $wgOut->enableClientCache(false);
 713                         }
 714                 }
 715
 716                 $undelete = $this->getUndeleteLink();
 717                 if( !empty( $undelete ) ) {
 718                         $s .= ' | '.$undelete;
 719                 }
 720                 return $s;
 721         }
 722
 723         function getUndeleteLink() {
 724                 global $wgUser, $wgTitle, $wgContLang, $action;
 725                 if(     $wgUser->isAllowed( 'deletedhistory' ) &&
 726                         (($wgTitle->getArticleId() == 0) || ($action == "history")) &&
 727                         ($n = $wgTitle->isDeleted() ) )
 728                 {
 729                         if ( $wgUser->isAllowed( 'delete' ) ) {
 730                                 $msg = 'thisisdeleted';
 731                         } else {
 732                                 $msg = 'viewdeleted';
 733                         }
 734                         return wfMsg( $msg,
 735                                 $this->makeKnownLink(
 736                                         $wgContLang->SpecialPage( 'Undelete/' . $wgTitle->getPrefixedDBkey() ),
 737                                         wfMsgExt( 'restorelink', array( 'parsemag', 'escape' ), $n ) ) );
 738                 }
 739                 return '';
 740         }
 741
 742         function printableLink() {
 743                 global $wgOut, $wgFeedClasses, $wgRequest;
 744
 745                 $baseurl = $_SERVER['REQUEST_URI'];
 746                 if( strpos( '?', $baseurl ) == false ) {
 747                         $baseurl .= '?';
 748                 } else {
 749                         $baseurl .= '&';
 750                 }
 751                 $baseurl = htmlspecialchars( $baseurl );
 752                 $printurl = $wgRequest->escapeAppendQuery( 'printable=yes' );
 753
 754                 $s = "<a href=\"$printurl\">" . wfMsg( 'printableversion' ) . '</a>';
 755                 if( $wgOut->isSyndicated() ) {
 756                         foreach( $wgFeedClasses as $format => $class ) {
 757                                 $feedurl = $wgRequest->escapeAppendQuery( "feed=$format" );
 758                                 $s .= " | <a href=\"$feedurl\">{$format}</a>";
 759                         }
 760                 }
 761                 return $s;
 762         }
 763
 764         function pageTitle() {
 765                 global $wgOut;
 766                 $s = '<h1 class="pagetitle">' . htmlspecialchars( $wgOut->getPageTitle() ) . '</h1>';
 767                 return $s;
 768         }
 769
 770         function pageSubtitle() {
 771                 global $wgOut;
 772
 773                 $sub = $wgOut->getSubtitle();
 774                 if ( '' == $sub ) {
 775                         global $wgExtraSubtitle;
 776                         $sub = wfMsg( 'tagline' ) . $wgExtraSubtitle;
 777                 }
 778                 $subpages = $this->subPageSubtitle();
 779                 $sub .= !empty($subpages)?"</p><p class='subpages'>$subpages":'';
 780                 $s = "<p class='subtitle'>{$sub}</p>\n";
 781                 return $s;
 782         }
 783
 784         function subPageSubtitle() {
 785                 global $wgOut,$wgTitle,$wgNamespacesWithSubpages;
 786                 $subpages = '';
 787                 if($wgOut->isArticle() && !empty($wgNamespacesWithSubpages[$wgTitle->getNamespace()])) {
 788                         $ptext=$wgTitle->getPrefixedText();
 789                         if(preg_match('/\//',$ptext)) {
 790                                 $links = explode('/',$ptext);
 791                                 $c = 0;
 792                                 $growinglink = '';
 793                                 foreach($links as $link) {
 794                                         $c++;
 795                                         if ($c<count($links)) {
 796                                                 $growinglink .= $link;
 797                                                 $getlink = $this->makeLink( $growinglink, htmlspecialchars( $link ) );
 798                                                 if(preg_match('/class="new"/i',$getlink)) { break; } # this is a hack, but it saves time
 799                                                 if ($c>1) {
 800                                                         $subpages .= ' | ';
 801                                                 } else  {
 802                                                         $subpages .= '&lt; ';
 803                                                 }
 804                                                 $subpages .= $getlink;
 805                                                 $growinglink .= '/';
 806                                         }
 807                                 }
 808                         }
 809                 }
 810                 return $subpages;
 811         }
 812
 813         function nameAndLogin() {
 814                 global $wgUser, $wgTitle, $wgLang, $wgContLang, $wgShowIPinHeader;
 815
 816                 $li = $wgContLang->specialPage( 'Userlogin' );
 817                 $lo = $wgContLang->specialPage( 'Userlogout' );
 818
 819                 $s = '';
 820                 if ( $wgUser->isAnon() ) {
 821                         if( $wgShowIPinHeader && isset( $_COOKIE[ini_get('session.name')] ) ) {
 822                                 $n = wfGetIP();
 823
 824                                 $tl = $this->makeKnownLinkObj( $wgUser->getTalkPage(),
 825                                   $wgLang->getNsText( NS_TALK ) );
 826
 827                                 $s .= $n . ' ('.$tl.')';
 828                         } else {
 829                                 $s .= wfMsg('notloggedin');
 830                         }
 831
 832                         $rt = $wgTitle->getPrefixedURL();
 833                         if ( 0 == strcasecmp( urlencode( $lo ), $rt ) ) {
 834                                 $q = '';
 835                         } else { $q = "returnto={$rt}"; }
 836
 837                         $s .= "\n<br />" . $this->makeKnownLinkObj(
 838                                 Title::makeTitle( NS_SPECIAL, 'Userlogin' ),
 839                                 wfMsg( 'login' ), $q );
 840                 } else {
 841                         $n = $wgUser->getName();
 842                         $rt = $wgTitle->getPrefixedURL();
 843                         $tl = $this->makeKnownLinkObj( $wgUser->getTalkPage(),
 844                           $wgLang->getNsText( NS_TALK ) );
 845
 846                         $tl = " ({$tl})";
 847
 848                         $s .= $this->makeKnownLinkObj( $wgUser->getUserPage(),
 849                           $n ) . "{$tl}<br />" .
 850                           $this->makeKnownLinkObj( Title::makeTitle( NS_SPECIAL, 'Userlogout' ), wfMsg( 'logout' ),
 851                           "returnto={$rt}" ) . ' | ' .
 852                           $this->specialLink( 'preferences' );
 853                 }
 854                 $s .= ' | ' . $this->makeKnownLink( wfMsgForContent( 'helppage' ),
 855                   wfMsg( 'help' ) );
 856
 857                 return $s;
 858         }
 859
 860         function getSearchLink() {
 861                 $searchPage =& Title::makeTitle( NS_SPECIAL, 'Search' );
 862                 return $searchPage->getLocalURL();
 863         }
 864
 865         function escapeSearchLink() {
 866                 return htmlspecialchars( $this->getSearchLink() );
 867         }
 868
 869         function searchForm() {
 870                 global $wgRequest;
 871                 $search = $wgRequest->getText( 'search' );
 872
 873                 $s = '<form name="search" class="inline" method="post" action="'
 874                   . $this->escapeSearchLink() . "\">\n"
 875                   . '<input type="text" name="search" size="19" value="'
 876                   . htmlspecialchars(substr($search,0,256)) . "\" />\n"
 877                   . '<input type="submit" name="go" value="' . wfMsg ('searcharticle') . '" />&nbsp;'
 878                   . '<input type="submit" name="fulltext" value="' . wfMsg ('searchbutton') . "\" />\n</form>";
 879
 880                 return $s;
 881         }
 882
 883         function topLinks() {
 884                 global $wgOut;
 885                 $sep = " |\n";
 886
 887                 $s = $this->mainPageLink() . $sep
 888                   . $this->specialLink( 'recentchanges' );
 889
 890                 if ( $wgOut->isArticleRelated() ) {
 891                         $s .=  $sep . $this->editThisPage()
 892                           . $sep . $this->historyLink();
 893                 }
 894                 # Many people don't like this dropdown box
 895                 #$s .= $sep . $this->specialPagesList();
 896
 897                 /* show links to different language variants */
 898                 global $wgDisableLangConversion, $wgContLang, $wgTitle;
 899                 $variants = $wgContLang->getVariants();
 900                 if( !$wgDisableLangConversion && sizeof( $variants ) > 1 ) {
 901                         foreach( $variants as $code ) {
 902                                 $varname = $wgContLang->getVariantname( $code );
 903                                 if( $varname == 'disable' )
 904                                         continue;
 905                                 $s .= ' | <a href="' . $wgTitle->getLocalUrl( 'variant=' . $code ) . '">' . $varname . '</a>';
 906                         }
 907                 }
 908
 909                 return $s;
 910         }
 911
 912         function bottomLinks() {
 913                 global $wgOut, $wgUser, $wgTitle, $wgUseTrackbacks;
 914                 $sep = " |\n";
 915
 916                 $s = '';
 917                 if ( $wgOut->isArticleRelated() ) {
 918                         $s .= '<strong>' . $this->editThisPage() . '</strong>';
 919                         if ( $wgUser->isLoggedIn() ) {
 920                                 $s .= $sep . $this->watchThisPage();
 921                         }
 922                         $s .= $sep . $this->talkLink()
 923                           . $sep . $this->historyLink()
 924                           . $sep . $this->whatLinksHere()
 925                           . $sep . $this->watchPageLinksLink();
 926
 927                         if ($wgUseTrackbacks)
 928                                 $s .= $sep . $this->trackbackLink();
 929
 930                         if ( $wgTitle->getNamespace() == NS_USER
 931                             || $wgTitle->getNamespace() == NS_USER_TALK )
 932
 933                         {
 934                                 $id=User::idFromName($wgTitle->getText());
 935                                 $ip=User::isIP($wgTitle->getText());
 936
 937                                 if($id || $ip) { # both anons and non-anons have contri list
 938                                         $s .= $sep . $this->userContribsLink();
 939                                 }
 940                                 if( $this->showEmailUser( $id ) ) {
 941                                         $s .= $sep . $this->emailUserLink();
 942                                 }
 943                         }
 944                         if ( $wgTitle->getArticleId() ) {
 945                                 $s .= "\n<br />";
 946                                 if($wgUser->isAllowed('delete')) { $s .= $this->deleteThisPage(); }
 947                                 if($wgUser->isAllowed('protect')) { $s .= $sep . $this->protectThisPage(); }
 948                                 if($wgUser->isAllowed('move')) { $s .= $sep . $this->moveThisPage(); }
 949                         }
 950                         $s .= "<br />\n" . $this->otherLanguages();
 951                 }
 952                 return $s;
 953         }
 954
 955         function pageStats() {
 956                 global $wgOut, $wgLang, $wgArticle, $wgRequest, $wgUser;
 957                 global $wgDisableCounters, $wgMaxCredits, $wgShowCreditsIfMax, $wgTitle, $wgPageShowWatchingUsers;
 958
 959                 extract( $wgRequest->getValues( 'oldid', 'diff' ) );
 960                 if ( ! $wgOut->isArticle() ) { return ''; }
 961                 if ( isset( $oldid ) || isset( $diff ) ) { return ''; }
 962                 if ( 0 == $wgArticle->getID() ) { return ''; }
 963
 964                 $s = '';
 965                 if ( !$wgDisableCounters ) {
 966                         $count = $wgLang->formatNum( $wgArticle->getCount() );
 967                         if ( $count ) {
 968                                 $s = wfMsgExt( 'viewcount', array( 'parseinline' ), $count );
 969                         }
 970                 }
 971
 972                 if (isset($wgMaxCredits) && $wgMaxCredits != 0) {
 973                     require_once('Credits.php');
 974                     $s .= ' ' . getCredits($wgArticle, $wgMaxCredits, $wgShowCreditsIfMax);
 975                 } else {
 976                     $s .= $this->lastModified();
 977                 }
 978
 979                 if ($wgPageShowWatchingUsers && $wgUser->getOption( 'shownumberswatching' )) {
 980                         $dbr =& wfGetDB( DB_SLAVE );
 981                         extract( $dbr->tableNames( 'watchlist' ) );
 982                         $sql = "SELECT COUNT(*) AS n FROM $watchlist
 983                                 WHERE wl_title='" . $dbr->strencode($wgTitle->getDBKey()) .
 984                                 "' AND  wl_namespace=" . $wgTitle->getNamespace() ;
 985                         $res = $dbr->query( $sql, 'Skin::pageStats');
 986                         $x = $dbr->fetchObject( $res );
 987                         $s .= ' ' . wfMsg('number_of_watching_users_pageview', $x->n );
 988                 }
 989
 990                 return $s . ' ' .  $this->getCopyright();
 991         }
 992
 993         function getCopyright( $type = 'detect' ) {
 994                 global $wgRightsPage, $wgRightsUrl, $wgRightsText, $wgRequest;
 995
 996                 if ( $type == 'detect' ) {
 997                         $oldid = $wgRequest->getVal( 'oldid' );
 998                         $diff = $wgRequest->getVal( 'diff' );
 999
1000                         if ( !is_null( $oldid ) && is_null( $diff ) && wfMsgForContent( 'history_copyright' ) !== '-' ) {
1001                                 $type = 'history';
1002                         } else {
1003                                 $type = 'normal';
1004                         }
1005                 }
1006
1007                 if ( $type == 'history' ) {
1008                         $msg = 'history_copyright';
1009                 } else {
1010                         $msg = 'copyright';
1011                 }
1012
1013                 $out = '';
1014                 if( $wgRightsPage ) {
1015                         $link = $this->makeKnownLink( $wgRightsPage, $wgRightsText );
1016                 } elseif( $wgRightsUrl ) {
1017                         $link = $this->makeExternalLink( $wgRightsUrl, $wgRightsText );
1018                 } else {
1019                         # Give up now
1020                         return $out;
1021                 }
1022                 $out .= wfMsgForContent( $msg, $link );
1023                 return $out;
1024         }
1025
1026         function getCopyrightIcon() {
1027                 global $wgRightsUrl, $wgRightsText, $wgRightsIcon, $wgCopyrightIcon;
1028                 $out = '';
1029                 if ( isset( $wgCopyrightIcon ) && $wgCopyrightIcon ) {
1030                         $out = $wgCopyrightIcon;
1031                 } else if ( $wgRightsIcon ) {
1032                         $icon = htmlspecialchars( $wgRightsIcon );
1033                         if ( $wgRightsUrl ) {
1034                                 $url = htmlspecialchars( $wgRightsUrl );
1035                                 $out .= '<a href="'.$url.'">';
1036                         }
1037                         $text = htmlspecialchars( $wgRightsText );
1038                         $out .= "<img src=\"$icon\" alt='$text' />";
1039                         if ( $wgRightsUrl ) {
1040                                 $out .= '</a>';
1041                         }
1042                 }
1043                 return $out;
1044         }
1045
1046         function getPoweredBy() {
1047                 global $wgStylePath;
1048                 $url = htmlspecialchars( "$wgStylePath/common/images/poweredby_mediawiki_88x31.png" );
1049                 $img = '<a href="http://www.mediawiki.org/"><img src="'.$url.'" alt="MediaWiki" /></a>';
1050                 return $img;
1051         }
1052
1053         function lastModified() {
1054                 global $wgLang, $wgArticle, $wgLoadBalancer;
1055
1056                 $timestamp = $wgArticle->getTimestamp();
1057                 if ( $timestamp ) {
1058                         $d = $wgLang->date( $timestamp, true );
1059                         $t = $wgLang->time( $timestamp, true );
1060                         $s = ' ' . wfMsg( 'lastmodifiedat', $d, $t );
1061                 } else {
1062                         $s = '';
1063                 }
1064                 if ( $wgLoadBalancer->getLaggedSlaveMode() ) {
1065                         $s .= ' <strong>' . wfMsg( 'laggedslavemode' ) . '</strong>';
1066                 }
1067                 return $s;
1068         }
1069
1070         function logoText( $align = '' ) {
1071                 if ( '' != $align ) { $a = " align='{$align}'"; }
1072                 else { $a = ''; }
1073
1074                 $mp = wfMsg( 'mainpage' );
1075                 $titleObj = Title::newFromText( $mp );
1076                 if ( is_object( $titleObj ) ) {
1077                         $url = $titleObj->escapeLocalURL();
1078                 } else {
1079                         $url = '';
1080                 }
1081
1082                 $logourl = $this->getLogo();
1083                 $s = "<a href='{$url}'><img{$a} src='{$logourl}' alt='[{$mp}]' /></a>";
1084                 return $s;
1085         }
1086
1087         /**
1088          * show a drop-down box of special pages
1089          */
1090         function specialPagesList() {
1091                 global $wgUser, $wgContLang, $wgServer, $wgRedirectScript;
1092                 $a = array();
1093                 $pages = array_merge( SpecialPage::getRegularPages(), SpecialPage::getRestrictedPages() );
1094                 foreach ( $pages as $name => $page ) {
1095                         $pages[$name] = $page->getDescription();
1096                 }
1097
1098                 $go = wfMsg( 'go' );
1099                 $sp = wfMsg( 'specialpages' );
1100                 $spp = $wgContLang->specialPage( 'Specialpages' );
1101
1102                 $s = '<form id="specialpages" method="get" class="inline" ' .
1103                   'action="' . htmlspecialchars( "{$wgServer}{$wgRedirectScript}" ) . "\">\n";
1104                 $s .= "<select name=\"wpDropdown\">\n";
1105                 $s .= "<option value=\"{$spp}\">{$sp}</option>\n";
1106
1107
1108                 foreach ( $pages as $name => $desc ) {
1109                         $p = $wgContLang->specialPage( $name );
1110                         $s .= "<option value=\"{$p}\">{$desc}</option>\n";
1111                 }
1112                 $s .= "</select>\n";
1113                 $s .= "<input type='submit' value=\"{$go}\" name='redirect' />\n";
1114                 $s .= "</form>\n";
1115                 return $s;
1116         }
1117
1118         function mainPageLink() {
1119                 $mp = wfMsgForContent( 'mainpage' );
1120                 $mptxt = wfMsg( 'mainpage');
1121                 $s = $this->makeKnownLink( $mp, $mptxt );
1122                 return $s;
1123         }
1124
1125         function copyrightLink() {
1126                 $s = $this->makeKnownLink( wfMsgForContent( 'copyrightpage' ),
1127                   wfMsg( 'copyrightpagename' ) );
1128                 return $s;
1129         }
1130
1131         function privacyLink() {
1132                 $privacy = wfMsg( 'privacy' );
1133                 if ($privacy == '-') {
1134                         return '';
1135                 } else {
1136                         return $this->makeKnownLink( wfMsgForContent( 'privacypage' ), $privacy);
1137                 }
1138         }
1139
1140         function aboutLink() {
1141                 $s = $this->makeKnownLink( wfMsgForContent( 'aboutpage' ),
1142                   wfMsg( 'aboutsite' ) );
1143                 return $s;
1144         }
1145
1146         function disclaimerLink() {
1147                 $disclaimers = wfMsg( 'disclaimers' );
1148                 if ($disclaimers == '-') {
1149                         return '';
1150                 } else {
1151                         return $this->makeKnownLink( wfMsgForContent( 'disclaimerpage' ),
1152                                                      $disclaimers );
1153                 }
1154         }
1155
1156         function editThisPage() {
1157                 global $wgOut, $wgTitle;
1158
1159                 if ( ! $wgOut->isArticleRelated() ) {
1160                         $s = wfMsg( 'protectedpage' );
1161                 } else {
1162                         if ( $wgTitle->userCanEdit() ) {
1163                                 $t = wfMsg( 'editthispage' );
1164                         } else {
1165                                 $t = wfMsg( 'viewsource' );
1166                         }
1167
1168                         $s = $this->makeKnownLinkObj( $wgTitle, $t, $this->editUrlOptions() );
1169                 }
1170                 return $s;
1171         }
1172
1173         /**
1174          * Return URL options for the 'edit page' link.
1175          * This may include an 'oldid' specifier, if the current page view is such.
1176          *
1177          * @return string
1178          * @private
1179          */
1180         function editUrlOptions() {
1181                 global $wgArticle;
1182
1183                 if( $this->mRevisionId && ! $wgArticle->isCurrent() ) {
1184                         return "action=edit&oldid=" . intval( $this->mRevisionId );
1185                 } else {
1186                         return "action=edit";
1187                 }
1188         }
1189
1190         function deleteThisPage() {
1191                 global $wgUser, $wgTitle, $wgRequest;
1192
1193                 $diff = $wgRequest->getVal( 'diff' );
1194                 if ( $wgTitle->getArticleId() && ( ! $diff ) && $wgUser->isAllowed('delete') ) {
1195                         $t = wfMsg( 'deletethispage' );
1196
1197                         $s = $this->makeKnownLinkObj( $wgTitle, $t, 'action=delete' );
1198                 } else {
1199                         $s = '';
1200                 }
1201                 return $s;
1202         }
1203
1204         function protectThisPage() {
1205                 global $wgUser, $wgTitle, $wgRequest;
1206
1207                 $diff = $wgRequest->getVal( 'diff' );
1208                 if ( $wgTitle->getArticleId() && ( ! $diff ) && $wgUser->isAllowed('protect') ) {
1209                         if ( $wgTitle->isProtected() ) {
1210                                 $t = wfMsg( 'unprotectthispage' );
1211                                 $q = 'action=unprotect';
1212                         } else {
1213                                 $t = wfMsg( 'protectthispage' );
1214                                 $q = 'action=protect';
1215                         }
1216                         $s = $this->makeKnownLinkObj( $wgTitle, $t, $q );
1217                 } else {
1218                         $s = '';
1219                 }
1220                 return $s;
1221         }
1222
1223         function watchThisPage() {
1224                 global $wgOut, $wgTitle;
1225
1226                 if ( $wgOut->isArticleRelated() ) {
1227                         if ( $wgTitle->userIsWatching() ) {
1228                                 $t = wfMsg( 'unwatchthispage' );
1229                                 $q = 'action=unwatch';
1230                         } else {
1231                                 $t = wfMsg( 'watchthispage' );
1232                                 $q = 'action=watch';
1233                         }
1234                         $s = $this->makeKnownLinkObj( $wgTitle, $t, $q );
1235                 } else {
1236                         $s = wfMsg( 'notanarticle' );
1237                 }
1238                 return $s;
1239         }
1240
1241         function moveThisPage() {
1242                 global $wgTitle;
1243
1244                 if ( $wgTitle->userCanMove() ) {
1245                         return $this->makeKnownLinkObj( Title::makeTitle( NS_SPECIAL, 'Movepage' ),
1246                           wfMsg( 'movethispage' ), 'target=' . $wgTitle->getPrefixedURL() );
1247                 } else {
1248                         // no message if page is protected - would be redundant
1249                         return '';
1250                 }
1251         }
1252
1253         function historyLink() {
1254                 global $wgTitle;
1255
1256                 return $this->makeKnownLinkObj( $wgTitle,
1257                   wfMsg( 'history' ), 'action=history' );
1258         }
1259
1260         function whatLinksHere() {
1261                 global $wgTitle;
1262
1263                 return $this->makeKnownLinkObj( Title::makeTitle( NS_SPECIAL, 'Whatlinkshere' ),
1264                   wfMsg( 'whatlinkshere' ), 'target=' . $wgTitle->getPrefixedURL() );
1265         }
1266
1267         function userContribsLink() {
1268                 global $wgTitle;
1269
1270                 return $this->makeKnownLinkObj( Title::makeTitle( NS_SPECIAL, 'Contributions' ),
1271                   wfMsg( 'contributions' ), 'target=' . $wgTitle->getPartialURL() );
1272         }
1273
1274         function showEmailUser( $id ) {
1275                 global $wgEnableEmail, $wgEnableUserEmail, $wgUser;
1276                 return $wgEnableEmail &&
1277                        $wgEnableUserEmail &&
1278                        $wgUser->isLoggedIn() && # show only to signed in users
1279                        0 != $id; # we can only email to non-anons ..
1280 #                      '' != $id->getEmail() && # who must have an email address stored ..
1281 #                      0 != $id->getEmailauthenticationtimestamp() && # .. which is authenticated
1282 #                      1 != $wgUser->getOption('disablemail'); # and not disabled
1283         }
1284
1285         function emailUserLink() {
1286                 global $wgTitle;
1287
1288                 return $this->makeKnownLinkObj( Title::makeTitle( NS_SPECIAL, 'Emailuser' ),
1289                   wfMsg( 'emailuser' ), 'target=' . $wgTitle->getPartialURL() );
1290         }
1291
1292         function watchPageLinksLink() {
1293                 global $wgOut, $wgTitle;
1294
1295                 if ( ! $wgOut->isArticleRelated() ) {
1296                         return '(' . wfMsg( 'notanarticle' ) . ')';
1297                 } else {
1298                         return $this->makeKnownLinkObj( Title::makeTitle( NS_SPECIAL,
1299                           'Recentchangeslinked' ), wfMsg( 'recentchangeslinked' ),
1300                           'target=' . $wgTitle->getPrefixedURL() );
1301                 }
1302         }
1303
1304         function trackbackLink() {
1305                 global $wgTitle;
1306
1307                 return "<a href=\"" . $wgTitle->trackbackURL() . "\">"
1308                         . wfMsg('trackbacklink') . "</a>";
1309         }
1310
1311         function otherLanguages() {
1312                 global $wgOut, $wgContLang, $wgHideInterlanguageLinks;
1313
1314                 if ( $wgHideInterlanguageLinks ) {
1315                         return '';
1316                 }
1317
1318                 $a = $wgOut->getLanguageLinks();
1319                 if ( 0 == count( $a ) ) {
1320                         return '';
1321                 }
1322
1323                 $s = wfMsg( 'otherlanguages' ) . ': ';
1324                 $first = true;
1325                 if($wgContLang->isRTL()) $s .= '<span dir="LTR">';
1326                 foreach( $a as $l ) {
1327                         if ( ! $first ) { $s .= ' | '; }
1328                         $first = false;
1329
1330                         $nt = Title::newFromText( $l );
1331                         $url = $nt->escapeFullURL();
1332                         $text = $wgContLang->getLanguageName( $nt->getInterwiki() );
1333
1334                         if ( '' == $text ) { $text = $l; }
1335                         $style = $this->getExternalLinkAttributes( $l, $text );
1336                         $s .= "<a href=\"{$url}\"{$style}>{$text}</a>";
1337                 }
1338                 if($wgContLang->isRTL()) $s .= '</span>';
1339                 return $s;
1340         }
1341
1342         function bugReportsLink() {
1343                 $s = $this->makeKnownLink( wfMsgForContent( 'bugreportspage' ),
1344                   wfMsg( 'bugreports' ) );
1345                 return $s;
1346         }
1347
1348         function dateLink() {
1349                 $t1 = Title::newFromText( gmdate( 'F j' ) );
1350                 $t2 = Title::newFromText( gmdate( 'Y' ) );
1351
1352                 $id = $t1->getArticleID();
1353
1354                 if ( 0 == $id ) {
1355                         $s = $this->makeBrokenLink( $t1->getText() );
1356                 } else {
1357                         $s = $this->makeKnownLink( $t1->getText() );
1358                 }
1359                 $s .= ', ';
1360
1361                 $id = $t2->getArticleID();
1362
1363                 if ( 0 == $id ) {
1364                         $s .= $this->makeBrokenLink( $t2->getText() );
1365                 } else {
1366                         $s .= $this->makeKnownLink( $t2->getText() );
1367                 }
1368                 return $s;
1369         }
1370
1371         function talkLink() {
1372                 global $wgTitle;
1373
1374                 if ( NS_SPECIAL == $wgTitle->getNamespace() ) {
1375                         # No discussion links for special pages
1376                         return '';
1377                 }
1378
1379                 if( $wgTitle->isTalkPage() ) {
1380                         $link = $wgTitle->getSubjectPage();
1381                         switch( $link->getNamespace() ) {
1382                                 case NS_MAIN:
1383                                         $text = wfMsg( 'articlepage' );
1384                                         break;
1385                                 case NS_USER:
1386                                         $text = wfMsg( 'userpage' );
1387                                         break;
1388                                 case NS_PROJECT:
1389                                         $text = wfMsg( 'projectpage' );
1390                                         break;
1391                                 case NS_IMAGE:
1392                                         $text = wfMsg( 'imagepage' );
1393                                         break;
1394                                 case NS_MEDIAWIKI:
1395                                         $text = wfMsg( 'mediawikipage' );
1396                                         break;
1397                                 case NS_TEMPLATE:
1398                                         $text = wfMsg( 'templatepage' );
1399                                         break;
1400                                 case NS_HELP:
1401                                         $text = wfMsg( 'viewhelppage' );
1402                                         break;
1403                                 case NS_CATEGORY:
1404                                         $text = wfMsg( 'categorypage' );
1405                                         break;
1406                                 default:
1407                                         $text = wfMsg( 'articlepage' );
1408                         }
1409                 } else {
1410                         $link = $wgTitle->getTalkPage();
1411                         $text = wfMsg( 'talkpage' );
1412                 }
1413
1414                 $s = $this->makeLinkObj( $link, $text );
1415
1416                 return $s;
1417         }
1418
1419         function commentLink() {
1420                 global $wgTitle, $wgOut;
1421
1422                 if ( $wgTitle->getNamespace() == NS_SPECIAL ) {
1423                         return '';
1424                 }
1425
1426                 # __NEWSECTIONLINK___ changes behaviour here
1427                 # If it's present, the link points to this page, otherwise
1428                 # it points to the talk page
1429                 if( $wgTitle->isTalkPage() ) {
1430                         $title =& $wgTitle;
1431                 } elseif( $wgOut->showNewSectionLink() ) {
1432                         $title =& $wgTitle;
1433                 } else {
1434                         $title =& $wgTitle->getTalkPage();
1435                 }
1436
1437                 return $this->makeKnownLinkObj( $title, wfMsg( 'postcomment' ), 'action=edit&section=new' );
1438         }
1439
1440         /* these are used extensively in SkinTemplate, but also some other places */
1441         static function makeSpecialUrl( $name, $urlaction = '' ) {
1442                 $title = Title::makeTitle( NS_SPECIAL, $name );
1443                 return $title->getLocalURL( $urlaction );
1444         }
1445
1446         static function makeI18nUrl( $name, $urlaction = '' ) {
1447                 $title = Title::newFromText( wfMsgForContent( $name ) );
1448                 self::checkTitle( $title, $name );
1449                 return $title->getLocalURL( $urlaction );
1450         }
1451
1452         static function makeUrl( $name, $urlaction = '' ) {
1453                 $title = Title::newFromText( $name );
1454                 self::checkTitle( $title, $name );
1455                 return $title->getLocalURL( $urlaction );
1456         }
1457
1458         # If url string starts with http, consider as external URL, else
1459         # internal
1460         static function makeInternalOrExternalUrl( $name ) {
1461                 if ( preg_match( '/^(?:' . wfUrlProtocols() . ')/', $name ) ) {
1462                         return $name;
1463                 } else {
1464                         return self::makeUrl( $name );
1465                 }
1466         }
1467
1468         # this can be passed the NS number as defined in Language.php
1469         static function makeNSUrl( $name, $urlaction = '', $namespace = NS_MAIN ) {
1470                 $title = Title::makeTitleSafe( $namespace, $name );
1471                 self::checkTitle( $title, $name );
1472                 return $title->getLocalURL( $urlaction );
1473         }
1474
1475         /* these return an array with the 'href' and boolean 'exists' */
1476         static function makeUrlDetails( $name, $urlaction = '' ) {
1477                 $title = Title::newFromText( $name );
1478                 self::checkTitle( $title, $name );
1479                 return array(
1480                         'href' => $title->getLocalURL( $urlaction ),
1481                         'exists' => $title->getArticleID() != 0 ? true : false
1482                 );
1483         }
1484
1485         /**
1486          * Make URL details where the article exists (or at least it's convenient to think so)
1487          */
1488         static function makeKnownUrlDetails( $name, $urlaction = '' ) {
1489                 $title = Title::newFromText( $name );
1490                 self::checkTitle( $title, $name );
1491                 return array(
1492                         'href' => $title->getLocalURL( $urlaction ),
1493                         'exists' => true
1494                 );
1495         }
1496
1497         # make sure we have some title to operate on
1498         static function checkTitle( &$title, &$name ) {
1499                 if( !is_object( $title ) ) {
1500                         $title = Title::newFromText( $name );
1501                         if( !is_object( $title ) ) {
1502                                 $title = Title::newFromText( '--error: link target missing--' );
1503                         }
1504                 }
1505         }
1506
1507         /**
1508          * Build an array that represents the sidebar(s), the navigation bar among them
1509          *
1510          * @return array
1511          * @private
1512          */
1513         function buildSidebar() {
1514                 global $parserMemc, $wgEnableSidebarCache;
1515                 global $wgLang, $wgContLang;
1516
1517                 $fname = 'SkinTemplate::buildSidebar';
1518
1519                 wfProfileIn( $fname );
1520
1521                 $key = wfMemcKey( 'sidebar' );
1522                 $cacheSidebar = $wgEnableSidebarCache &&
1523                         ($wgLang->getCode() == $wgContLang->getCode());
1524
1525                 if ($cacheSidebar) {
1526                         $cachedsidebar = $parserMemc->get( $key );
1527                         if ($cachedsidebar!="") {
1528                                 wfProfileOut($fname);
1529                                 return $cachedsidebar;
1530                         }
1531                 }
1532
1533                 $bar = array();
1534                 $lines = explode( "\n", wfMsgForContent( 'sidebar' ) );
1535                 foreach ($lines as $line) {
1536                         if (strpos($line, '*') !== 0)
1537                                 continue;
1538                         if (strpos($line, '**') !== 0) {
1539                                 $line = trim($line, '* ');
1540                                 $heading = $line;
1541                         } else {
1542                                 if (strpos($line, '|') !== false) { // sanity check
1543                                         $line = explode( '|' , trim($line, '* '), 2 );
1544                                         $link = wfMsgForContent( $line[0] );
1545                                         if ($link == '-')
1546                                                 continue;
1547                                         if (wfEmptyMsg($line[1], $text = wfMsg($line[1])))
1548                                                 $text = $line[1];
1549                                         if (wfEmptyMsg($line[0], $link))
1550                                                 $link = $line[0];
1551                                         $href = self::makeInternalOrExternalUrl( $link );
1552                                         $bar[$heading][] = array(
1553                                                 'text' => $text,
1554                                                 'href' => $href,
1555                                                 'id' => 'n-' . strtr($line[1], ' ', '-'),
1556                                                 'active' => false
1557                                         );
1558                                 } else { continue; }
1559                         }
1560                 }
1561                 if ($cacheSidebar)
1562                         $cachednotice = $parserMemc->set( $key, $bar, 86400 );
1563                 wfProfileOut( $fname );
1564                 return $bar;
1565         }
1566 }
1567 ?>