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