includes/Skin.php

   1 <?php
   2
   3 /**
   4  *
   5  * @package MediaWiki
   6  * @subpackage Skins
   7  */
   8
   9 /**
  10  * This is not a valid entry point, perform no further processing unless MEDIAWIKI is defined
  11  */
  12 if( defined( "MEDIAWIKI" ) ) {
  13
  14 # See skin.txt
  15 require_once( 'Linker.php' );
  16 require_once( 'Image.php' );
  17
  18 # Get a list of all skins available in /skins/
  19 # Build using the regular expression '^(.*).php$'
  20 # Array keys are all lower case, array value keep the case used by filename
  21 #
  22
  23 $skinDir = dir($IP.'/skins');
  24
  25 # while code from www.php.net
  26 while (false !== ($file = $skinDir->read())) {
  27         if(preg_match('/^([^.].*)\.php$/',$file, $matches)) {
  28                 $aSkin = $matches[1];
  29                 $wgValidSkinNames[strtolower($aSkin)] = $aSkin;
  30         }
  31 }
  32 $skinDir->close();
  33 unset($matches);
  34
  35 require_once( 'RecentChange.php' );
  36
  37 /**
  38  * The main skin class that provide methods and properties for all other skins
  39  * including PHPTal skins.
  40  * This base class is also the "Standard" skin.
  41  * @package MediaWiki
  42  */
  43 class Skin extends Linker {
  44         /**#@+
  45          * @access private
  46          */
  47         var $lastdate, $lastline;
  48         var $rc_cache ; # Cache for Enhanced Recent Changes
  49         var $rcCacheIndex ; # Recent Changes Cache Counter for visibility toggle
  50         var $rcMoveIndex;
  51         /**#@-*/
  52
  53         /** Constructor, call parent constructor */
  54         function Skin() { parent::Linker(); }
  55
  56         /**
  57          * Fetch the set of available skins.
  58          * @return array of strings
  59          * @static
  60          */
  61         function getSkinNames() {
  62                 global $wgValidSkinNames;
  63                 return $wgValidSkinNames;
  64         }
  65
  66         /**
  67          * Normalize a skin preference value to a form that can be loaded.
  68          * If a skin can't be found, it will fall back to the configured
  69          * default (or the old 'Classic' skin if that's broken).
  70          * @param string $key
  71          * @return string
  72          * @static
  73          */
  74         function normalizeKey( $key ) {
  75                 global $wgDefaultSkin;
  76                 $skinNames = Skin::getSkinNames();
  77
  78                 if( $key == '' ) {
  79                         // Don't return the default immediately;
  80                         // in a misconfiguration we need to fall back.
  81                         $key = $wgDefaultSkin;
  82                 }
  83
  84                 if( isset( $skinNames[$key] ) ) {
  85                         return $key;
  86                 }
  87
  88                 // Older versions of the software used a numeric setting
  89                 // in the user preferences.
  90                 $fallback = array(
  91                         0 => $wgDefaultSkin,
  92                         1 => 'nostalgia',
  93                         2 => 'cologneblue' );
  94
  95                 if( isset( $fallback[$key] ) ){
  96                         $key = $fallback[$key];
  97                 }
  98
  99                 if( isset( $skinNames[$key] ) ) {
 100                         return $key;
 101                 } else {
 102                         // The old built-in skin
 103                         return 'standard';
 104                 }
 105         }
 106
 107         /**
 108          * Factory method for loading a skin of a given type
 109          * @param string $key 'monobook', 'standard', etc
 110          * @return Skin
 111          * @static
 112          */
 113         function &newFromKey( $key ) {
 114                 $key = Skin::normalizeKey( $key );
 115
 116                 $skinNames = Skin::getSkinNames();
 117                 $skinName = $skinNames[$key];
 118
 119                 global $IP;
 120
 121                 # Grab the skin class and initialise it. Each skin checks for PHPTal
 122                 # and will not load if it's not enabled.
 123                 require_once( $IP.'/skins/'.$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                         $className = 'SkinStandard';
 133                         require_once( $IP.'/skins/Standard.php' );
 134                 }
 135                 $skin =& new $className;
 136                 return $skin;
 137         }
 138
 139         /** @return string path to the skin stylesheet */
 140         function getStylesheet() {
 141                 return 'common/wikistandard.css?1';
 142         }
 143
 144         /** @return string skin name */
 145         function getSkinName() {
 146                 return 'standard';
 147         }
 148
 149         function qbSetting() {
 150                 global $wgOut, $wgUser;
 151
 152                 if ( $wgOut->isQuickbarSuppressed() ) { return 0; }
 153                 $q = $wgUser->getOption( 'quickbar' );
 154                 if ( '' == $q ) { $q = 0; }
 155                 return $q;
 156         }
 157
 158         function initPage( &$out ) {
 159                 $fname = 'Skin::initPage';
 160                 wfProfileIn( $fname );
 161
 162                 $out->addLink( array( 'rel' => 'shortcut icon', 'href' => '/favicon.ico' ) );
 163
 164                 $this->addMetadataLinks($out);
 165
 166                 $this->mRevisionId = $out->mRevisionId;
 167
 168                 wfProfileOut( $fname );
 169         }
 170
 171         function addMetadataLinks( &$out ) {
 172                 global $wgTitle, $wgEnableDublinCoreRdf, $wgEnableCreativeCommonsRdf;
 173                 global $wgRightsPage, $wgRightsUrl;
 174
 175                 if( $out->isArticleRelated() ) {
 176                         # note: buggy CC software only reads first "meta" link
 177                         if( $wgEnableCreativeCommonsRdf ) {
 178                                 $out->addMetadataLink( array(
 179                                         'title' => 'Creative Commons',
 180                                         'type' => 'application/rdf+xml',
 181                                         'href' => $wgTitle->getLocalURL( 'action=creativecommons') ) );
 182                         }
 183                         if( $wgEnableDublinCoreRdf ) {
 184                                 $out->addMetadataLink( array(
 185                                         'title' => 'Dublin Core',
 186                                         'type' => 'application/rdf+xml',
 187                                         'href' => $wgTitle->getLocalURL( 'action=dublincore' ) ) );
 188                         }
 189                 }
 190                 $copyright = '';
 191                 if( $wgRightsPage ) {
 192                         $copy = Title::newFromText( $wgRightsPage );
 193                         if( $copy ) {
 194                                 $copyright = $copy->getLocalURL();
 195                         }
 196                 }
 197                 if( !$copyright && $wgRightsUrl ) {
 198                         $copyright = $wgRightsUrl;
 199                 }
 200                 if( $copyright ) {
 201                         $out->addLink( array(
 202                                 'rel' => 'copyright',
 203                                 'href' => $copyright ) );
 204                 }
 205         }
 206
 207         function outputPage( &$out ) {
 208                 global $wgDebugComments;
 209
 210                 wfProfileIn( 'Skin::outputPage' );
 211                 $this->initPage( $out );
 212
 213                 $out->out( $out->headElement() );
 214
 215                 $out->out( "\n<body" );
 216                 $ops = $this->getBodyOptions();
 217                 foreach ( $ops as $name => $val ) {
 218                         $out->out( " $name='$val'" );
 219                 }
 220                 $out->out( ">\n" );
 221                 if ( $wgDebugComments ) {
 222                         $out->out( "<!-- Wiki debugging output:\n" .
 223                           $out->mDebugtext . "-->\n" );
 224                 }
 225
 226                 $out->out( $this->beforeContent() );
 227
 228                 $out->out( $out->mBodytext . "\n" );
 229
 230                 $out->out( $this->afterContent() );
 231
 232                 $out->out( $out->reportTime() );
 233
 234                 $out->out( "\n</body></html>" );
 235         }
 236
 237         function getHeadScripts() {
 238                 global $wgStylePath, $wgUser, $wgAllowUserJs, $wgJsMimeType;
 239                 $r = "<script type=\"{$wgJsMimeType}\" src=\"{$wgStylePath}/common/wikibits.js\"></script>\n";
 240                 if( $wgAllowUserJs && $wgUser->isLoggedIn() ) {
 241                         $userpage = $wgUser->getUserPage();
 242                         $userjs = htmlspecialchars( $this->makeUrl(
 243                                 $userpage->getPrefixedText().'/'.$this->getSkinName().'.js',
 244                                 'action=raw&ctype='.$wgJsMimeType));
 245                         $r .= '<script type="'.$wgJsMimeType.'" src="'.$userjs."\"></script>\n";
 246                 }
 247                 return $r;
 248         }
 249
 250         /**
 251          * To make it harder for someone to slip a user a fake
 252          * user-JavaScript or user-CSS preview, a random token
 253          * is associated with the login session. If it's not
 254          * passed back with the preview request, we won't render
 255          * the code.
 256          *
 257          * @param string $action
 258          * @return bool
 259          * @access private
 260          */
 261         function userCanPreview( $action ) {
 262                 global $wgTitle, $wgRequest, $wgUser;
 263
 264                 if( $action != 'submit' )
 265                         return false;
 266                 if( !$wgRequest->wasPosted() )
 267                         return false;
 268                 if( !$wgTitle->userCanEditCssJsSubpage() )
 269                         return false;
 270                 return $wgUser->matchEditToken(
 271                         $wgRequest->getVal( 'wpEditToken' ) );
 272         }
 273
 274         # get the user/site-specific stylesheet, SkinPHPTal called from RawPage.php (settings are cached that way)
 275         function getUserStylesheet() {
 276                 global $wgOut, $wgStylePath, $wgRequest, $wgContLang, $wgSquidMaxage;
 277                 $sheet = $this->getStylesheet();
 278                 $action = $wgRequest->getText('action');
 279                 $s = "@import \"$wgStylePath/$sheet\";\n";
 280                 if($wgContLang->isRTL()) $s .= "@import \"$wgStylePath/common/common_rtl.css\";\n";
 281
 282                 $query = "action=raw&ctype=text/css&smaxage=$wgSquidMaxage";
 283                 $s .= '@import "' . $this->makeNSUrl( 'Common.css', $query, NS_MEDIAWIKI ) . "\";\n" .
 284                         '@import "'.$this->makeNSUrl( ucfirst( $this->getSkinName() . '.css' ), $query, NS_MEDIAWIKI ) . "\";\n";
 285
 286                 $s .= $this->doGetUserStyles();
 287                 return $s."\n";
 288         }
 289
 290         /**
 291          * placeholder, returns generated js in monobook
 292          */
 293         function getUserJs() { return; }
 294
 295         /**
 296          * Return html code that include User stylesheets
 297          */
 298         function getUserStyles() {
 299                 global $wgOut, $wgStylePath;
 300                 $s = "<style type='text/css'>\n";
 301                 $s .= "/*/*/ /*<![CDATA[*/\n"; # <-- Hide the styles from Netscape 4 without hiding them from IE/Mac
 302                 $s .= $this->getUserStylesheet();
 303                 $s .= "/*]]>*/ /* */\n";
 304                 $s .= "</style>\n";
 305                 return $s;
 306         }
 307
 308         /**
 309          * Some styles that are set by user through the user settings interface.
 310          */
 311         function doGetUserStyles() {
 312                 global $wgUser, $wgContLang, $wgUser, $wgRequest, $wgTitle, $wgAllowUserCss;
 313
 314                 $s = '';
 315
 316                 if( $wgAllowUserCss && $wgUser->isLoggedIn() ) { # logged in
 317                         if($wgTitle->isCssSubpage() && $this->userCanPreview( $action ) ) {
 318                                 $s .= $wgRequest->getText('wpTextbox1');
 319                         } else {
 320                                 $userpage = $wgUser->getUserPage();
 321                                 $s.= '@import "'.$this->makeUrl(
 322                                         $userpage->getPrefixedText().'/'.$this->getSkinName().'.css',
 323                                         'action=raw&ctype=text/css').'";'."\n";
 324                         }
 325                 }
 326
 327                 return $s . $this->reallyDoGetUserStyles();
 328         }
 329
 330         function reallyDoGetUserStyles() {
 331                 global $wgUser;
 332                 $s = '';
 333                 if (($undopt = $wgUser->getOption("underline")) != 2) {
 334                         $underline = $undopt ? 'underline' : 'none';
 335                         $s .= "a { text-decoration: $underline; }\n";
 336                 }
 337                 if( $wgUser->getOption( 'highlightbroken' ) ) {
 338                         $s .= "a.new, #quickbar a.new { color: #CC2200; }\n";
 339                 } else {
 340                         $s .= <<<END
 341 a.new, #quickbar a.new,
 342 a.stub, #quickbar a.stub {
 343         color: inherit;
 344         text-decoration: inherit;
 345 }
 346 a.new:after, #quickbar a.new:after {
 347         content: "?";
 348         color: #CC2200;
 349         text-decoration: $underline;
 350 }
 351 a.stub:after, #quickbar a.stub:after {
 352         content: "!";
 353         color: #772233;
 354         text-decoration: $underline;
 355 }
 356 END;
 357                 }
 358                 if( $wgUser->getOption( 'justify' ) ) {
 359                         $s .= "#article, #bodyContent { text-align: justify; }\n";
 360                 }
 361                 if( !$wgUser->getOption( 'showtoc' ) ) {
 362                         $s .= "#toc { display: none; }\n";
 363                 }
 364                 if( !$wgUser->getOption( 'editsection' ) ) {
 365                         $s .= ".editsection { display: none; }\n";
 366                 }
 367                 return $s;
 368         }
 369
 370         function getBodyOptions() {
 371                 global $wgUser, $wgTitle, $wgOut, $wgRequest;
 372
 373                 extract( $wgRequest->getValues( 'oldid', 'redirect', 'diff' ) );
 374
 375                 if ( 0 != $wgTitle->getNamespace() ) {
 376                         $a = array( 'bgcolor' => '#ffffec' );
 377                 }
 378                 else $a = array( 'bgcolor' => '#FFFFFF' );
 379                 if($wgOut->isArticle() && $wgUser->getOption('editondblclick') &&
 380                   $wgTitle->userCanEdit() ) {
 381                         $t = wfMsg( 'editthispage' );
 382                         $s = $wgTitle->getFullURL( $this->editUrlOptions() );
 383                         $s = 'document.location = "' .wfEscapeJSString( $s ) .'";';
 384                         $a += array ('ondblclick' => $s);
 385
 386                 }
 387                 $a['onload'] = $wgOut->getOnloadHandler();
 388                 if( $wgUser->getOption( 'editsectiononrightclick' ) ) {
 389                         if( $a['onload'] != '' ) {
 390                                 $a['onload'] .= ';';
 391                         }
 392                         $a['onload'] .= 'setupRightClickEdit()';
 393                 }
 394                 return $a;
 395         }
 396
 397         /**
 398          * URL to the logo
 399          */
 400         function getLogo() {
 401                 global $wgLogo;
 402                 return $wgLogo;
 403         }
 404
 405         /**
 406          * This will be called immediately after the <body> tag.  Split into
 407          * two functions to make it easier to subclass.
 408          */
 409         function beforeContent() {
 410                 return $this->doBeforeContent();
 411         }
 412
 413         function doBeforeContent() {
 414                 global $wgOut, $wgTitle, $wgContLang;
 415                 $fname = 'Skin::doBeforeContent';
 416                 wfProfileIn( $fname );
 417
 418                 $s = '';
 419                 $qb = $this->qbSetting();
 420
 421                 if( $langlinks = $this->otherLanguages() ) {
 422                         $rows = 2;
 423                         $borderhack = '';
 424                 } else {
 425                         $rows = 1;
 426                         $langlinks = false;
 427                         $borderhack = 'class="top"';
 428                 }
 429
 430                 $s .= "\n<div id='content'>\n<div id='topbar'>\n" .
 431                   "<table border='0' cellspacing='0' width='98%'>\n<tr>\n";
 432
 433                 $shove = ($qb != 0);
 434                 $left = ($qb == 1 || $qb == 3);
 435                 if($wgContLang->isRTL()) $left = !$left;
 436
 437                 if ( !$shove ) {
 438                         $s .= "<td class='top' align='left' valign='top' rowspan='{$rows}'>\n" .
 439                           $this->logoText() . '</td>';
 440                 } elseif( $left ) {
 441                         $s .= $this->getQuickbarCompensator( $rows );
 442                 }
 443                 $l = $wgContLang->isRTL() ? 'right' : 'left';
 444                 $s .= "<td {$borderhack} align='$l' valign='top'>\n";
 445
 446                 $s .= $this->topLinks() ;
 447                 $s .= "<p class='subtitle'>" . $this->pageTitleLinks() . "</p>\n";
 448
 449                 $r = $wgContLang->isRTL() ? "left" : "right";
 450                 $s .= "</td>\n<td {$borderhack} valign='top' align='$r' nowrap='nowrap'>";
 451                 $s .= $this->nameAndLogin();
 452                 $s .= "\n<br />" . $this->searchForm() . "</td>";
 453
 454                 if ( $langlinks ) {
 455                         $s .= "</tr>\n<tr>\n<td class='top' colspan=\"2\">$langlinks</td>\n";
 456                 }
 457
 458                 if ( $shove && !$left ) { # Right
 459                         $s .= $this->getQuickbarCompensator( $rows );
 460                 }
 461                 $s .= "</tr>\n</table>\n</div>\n";
 462                 $s .= "\n<div id='article'>\n";
 463
 464                 $notice = wfGetSiteNotice();
 465                 if( $notice ) {
 466                         $s .= "\n<div id='siteNotice'>$notice</div>\n";
 467                 }
 468                 $s .= $this->pageTitle();
 469                 $s .= $this->pageSubtitle() ;
 470                 $s .= $this->getCategories();
 471                 wfProfileOut( $fname );
 472                 return $s;
 473         }
 474
 475
 476         function getCategoryLinks () {
 477                 global $wgOut, $wgTitle, $wgUseCategoryBrowser;
 478                 global $wgContLang;
 479
 480                 if( count( $wgOut->mCategoryLinks ) == 0 ) return '';
 481
 482                 // Use Unicode bidi embedding override characters,
 483                 // to make sure links don't smash each other up in ugly ways.
 484                 $dir = $wgContLang->isRTL() ? 'rtl' : 'ltr';
 485                 $embed = "<span dir='$dir'>";
 486                 $pop = '</span>';
 487                 $t = $embed . implode ( "$pop | $embed" , $wgOut->mCategoryLinks ) . $pop;
 488
 489                 $msg = count( $wgOut->mCategoryLinks ) === 1 ? 'categories1' : 'categories';
 490                 $s = $this->makeKnownLinkObj( Title::makeTitle( NS_SPECIAL, 'Categories' ),
 491                         wfMsg( $msg ), 'article=' . urlencode( $wgTitle->getPrefixedDBkey() ) )
 492                         . ': ' . $t;
 493
 494                 # optional 'dmoz-like' category browser. Will be shown under the list
 495                 # of categories an article belong to
 496                 if($wgUseCategoryBrowser) {
 497                         $s .= '<br /><hr />';
 498
 499                         # get a big array of the parents tree
 500                         $parenttree = $wgTitle->getParentCategoryTree();
 501                         # Skin object passed by reference cause it can not be
 502                         # accessed under the method subfunction drawCategoryBrowser
 503                         $tempout = explode("\n", Skin::drawCategoryBrowser($parenttree, $this) );
 504                         # Clean out bogus first entry and sort them
 505                         unset($tempout[0]);
 506                         asort($tempout);
 507                         # Output one per line
 508                         $s .= implode("<br />\n", $tempout);
 509                 }
 510
 511                 return $s;
 512         }
 513
 514         /** Render the array as a serie of links.
 515          * @param array $tree Categories tree returned by Title::getParentCategoryTree
 516          * @param object &skin Skin passed by reference
 517          * @return string separated by &gt;, terminate with "\n"
 518          */
 519         function drawCategoryBrowser($tree, &$skin) {
 520                 $return = '';
 521                 foreach ($tree as $element => $parent) {
 522                         if (empty($parent)) {
 523                                 # element start a new list
 524                                 $return .= "\n";
 525                         } else {
 526                                 # grab the others elements
 527                                 $return .= Skin::drawCategoryBrowser($parent, $skin) . ' &gt; ';
 528                         }
 529                         # add our current element to the list
 530                         $eltitle = Title::NewFromText($element);
 531                         $return .=  $skin->makeLinkObj( $eltitle, $eltitle->getText() ) ;
 532                 }
 533                 return $return;
 534         }
 535
 536         function getCategories() {
 537                 $catlinks=$this->getCategoryLinks();
 538                 if(!empty($catlinks)) {
 539                         return "<p class='catlinks'>{$catlinks}</p>";
 540                 }
 541         }
 542
 543         function getQuickbarCompensator( $rows = 1 ) {
 544                 return "<td width='152' rowspan='{$rows}'>&nbsp;</td>";
 545         }
 546
 547         /**
 548          * This gets called immediately before the </body> tag.
 549          * @return string HTML to be put after </body> ???
 550          */
 551         function afterContent() {
 552                 $printfooter = "<div class=\"printfooter\">\n" . $this->printFooter() . "</div>\n";
 553                 return $printfooter . $this->doAfterContent();
 554         }
 555
 556         /** @return string Retrievied from HTML text */
 557         function printSource() {
 558                 global $wgTitle;
 559                 $url = htmlspecialchars( $wgTitle->getFullURL() );
 560                 return wfMsg( 'retrievedfrom', '<a href="'.$url.'">'.$url.'</a>' );
 561         }
 562
 563         function printFooter() {
 564                 return "<p>" .  $this->printSource() .
 565                         "</p>\n\n<p>" . $this->pageStats() . "</p>\n";
 566         }
 567
 568         /** overloaded by derived classes */
 569         function doAfterContent() { }
 570
 571         function pageTitleLinks() {
 572                 global $wgOut, $wgTitle, $wgUser, $wgContLang, $wgRequest;
 573
 574                 extract( $wgRequest->getValues( 'oldid', 'diff' ) );
 575                 $action = $wgRequest->getText( 'action' );
 576
 577                 $s = $this->printableLink();
 578                 $disclaimer = $this->disclaimerLink(); # may be empty
 579                 if( $disclaimer ) {
 580                         $s .= ' | ' . $disclaimer;
 581                 }
 582                 $privacy = $this->privacyLink(); # may be empty too
 583                 if( $privacy ) {
 584                         $s .= ' | ' . $privacy;
 585                 }
 586
 587                 if ( $wgOut->isArticleRelated() ) {
 588                         if ( $wgTitle->getNamespace() == NS_IMAGE ) {
 589                                 $name = $wgTitle->getDBkey();
 590                                 $image = new Image( $wgTitle );
 591                                 if( $image->exists() ) {
 592                                         $link = htmlspecialchars( $image->getURL() );
 593                                         $style = $this->getInternalLinkAttributes( $link, $name );
 594                                         $s .= " | <a href=\"{$link}\"{$style}>{$name}</a>";
 595                                 }
 596                         }
 597                 }
 598                 if ( 'history' == $action || isset( $diff ) || isset( $oldid ) ) {
 599                         $s .= ' | ' . $this->makeKnownLinkObj( $wgTitle,
 600                                         wfMsg( 'currentrev' ) );
 601                 }
 602
 603                 if ( $wgUser->getNewtalk() ) {
 604                         # do not show "You have new messages" text when we are viewing our
 605                         # own talk page
 606                         if( !$wgTitle->equals( $wgUser->getTalkPage() ) ) {
 607                                 $tl = $this->makeKnownLinkObj( $wgUser->getTalkPage(), wfMsgHtml( 'newmessageslink' ) );
 608                                 $dl = $this->makeKnownLinkObj( $wgUser->getTalkPage(), wfMsgHtml( 'newmessagesdifflink' ), 'diff=cur' );
 609                                 $s.= ' | <strong>'. wfMsg( 'youhavenewmessages', $tl, $dl ) . '</strong>';
 610                                 # disable caching
 611                                 $wgOut->setSquidMaxage(0);
 612                                 $wgOut->enableClientCache(false);
 613                         }
 614                 }
 615
 616                 $undelete = $this->getUndeleteLink();
 617                 if( !empty( $undelete ) ) {
 618                         $s .= ' | '.$undelete;
 619                 }
 620                 return $s;
 621         }
 622
 623         function getUndeleteLink() {
 624                 global $wgUser, $wgTitle, $wgContLang, $action;
 625                 if(     $wgUser->isAllowed( 'deletedhistory' ) &&
 626                         (($wgTitle->getArticleId() == 0) || ($action == "history")) &&
 627                         ($n = $wgTitle->isDeleted() ) )
 628                 {
 629                         if ( $wgUser->isAllowed( 'delete' ) ) {
 630                                 $msg = 'thisisdeleted';
 631                         } else {
 632                                 $msg = 'viewdeleted';
 633                         }
 634                         return wfMsg( $msg,
 635                                 $this->makeKnownLink(
 636                                         $wgContLang->SpecialPage( 'Undelete/' . $wgTitle->getPrefixedDBkey() ),
 637                                         wfMsg( 'restorelink' . ($n == 1 ? '1' : ''), $n ) ) );
 638                 }
 639                 return '';
 640         }
 641
 642         function printableLink() {
 643                 global $wgOut, $wgFeedClasses, $wgRequest;
 644
 645                 $baseurl = $_SERVER['REQUEST_URI'];
 646                 if( strpos( '?', $baseurl ) == false ) {
 647                         $baseurl .= '?';
 648                 } else {
 649                         $baseurl .= '&';
 650                 }
 651                 $baseurl = htmlspecialchars( $baseurl );
 652                 $printurl = $wgRequest->escapeAppendQuery( 'printable=yes' );
 653
 654                 $s = "<a href=\"$printurl\">" . wfMsg( 'printableversion' ) . '</a>';
 655                 if( $wgOut->isSyndicated() ) {
 656                         foreach( $wgFeedClasses as $format => $class ) {
 657                                 $feedurl = $wgRequest->escapeAppendQuery( "feed=$format" );
 658                                 $s .= " | <a href=\"$feedurl\">{$format}</a>";
 659                         }
 660                 }
 661                 return $s;
 662         }
 663
 664         function pageTitle() {
 665                 global $wgOut, $wgTitle, $wgUser;
 666
 667                 $s = '<h1 class="pagetitle">' . htmlspecialchars( $wgOut->getPageTitle() ) . '</h1>';
 668                 return $s;
 669         }
 670
 671         function pageSubtitle() {
 672                 global $wgOut;
 673
 674                 $sub = $wgOut->getSubtitle();
 675                 if ( '' == $sub ) {
 676                         global $wgExtraSubtitle;
 677                         $sub = wfMsg( 'tagline' ) . $wgExtraSubtitle;
 678                 }
 679                 $subpages = $this->subPageSubtitle();
 680                 $sub .= !empty($subpages)?"</p><p class='subpages'>$subpages":'';
 681                 $s = "<p class='subtitle'>{$sub}</p>\n";
 682                 return $s;
 683         }
 684
 685         function subPageSubtitle() {
 686                 global $wgOut,$wgTitle,$wgNamespacesWithSubpages;
 687                 $subpages = '';
 688                 if($wgOut->isArticle() && !empty($wgNamespacesWithSubpages[$wgTitle->getNamespace()])) {
 689                         $ptext=$wgTitle->getPrefixedText();
 690                         if(preg_match('/\//',$ptext)) {
 691                                 $links = explode('/',$ptext);
 692                                 $c = 0;
 693                                 $growinglink = '';
 694                                 foreach($links as $link) {
 695                                         $c++;
 696                                         if ($c<count($links)) {
 697                                                 $growinglink .= $link;
 698                                                 $getlink = $this->makeLink( $growinglink, $link );
 699                                                 if(preg_match('/class="new"/i',$getlink)) { break; } # this is a hack, but it saves time
 700                                                 if ($c>1) {
 701                                                         $subpages .= ' | ';
 702                                                 } else  {
 703                                                         $subpages .= '&lt; ';
 704                                                 }
 705                                                 $subpages .= $getlink;
 706                                                 $growinglink .= '/';
 707                                         }
 708                                 }
 709                         }
 710                 }
 711                 return $subpages;
 712         }
 713
 714         function nameAndLogin() {
 715                 global $wgUser, $wgTitle, $wgLang, $wgContLang, $wgShowIPinHeader;
 716
 717                 $li = $wgContLang->specialPage( 'Userlogin' );
 718                 $lo = $wgContLang->specialPage( 'Userlogout' );
 719
 720                 $s = '';
 721                 if ( $wgUser->isAnon() ) {
 722                         if( $wgShowIPinHeader && isset( $_COOKIE[ini_get('session.name')] ) ) {
 723                                 $n = wfGetIP();
 724
 725                                 $tl = $this->makeKnownLinkObj( $wgUser->getTalkPage(),
 726                                   $wgLang->getNsText( NS_TALK ) );
 727
 728                                 $s .= $n . ' ('.$tl.')';
 729                         } else {
 730                                 $s .= wfMsg('notloggedin');
 731                         }
 732
 733                         $rt = $wgTitle->getPrefixedURL();
 734                         if ( 0 == strcasecmp( urlencode( $lo ), $rt ) ) {
 735                                 $q = '';
 736                         } else { $q = "returnto={$rt}"; }
 737
 738                         $s .= "\n<br />" . $this->makeKnownLinkObj(
 739                                 Title::makeTitle( NS_SPECIAL, 'Userlogin' ),
 740                                 wfMsg( 'login' ), $q );
 741                 } else {
 742                         $n = $wgUser->getName();
 743                         $rt = $wgTitle->getPrefixedURL();
 744                         $tl = $this->makeKnownLinkObj( $wgUser->getTalkPage(),
 745                           $wgLang->getNsText( NS_TALK ) );
 746
 747                         $tl = " ({$tl})";
 748
 749                         $s .= $this->makeKnownLinkObj( $wgUser->getUserPage(),
 750                           $n ) . "{$tl}<br />" .
 751                           $this->makeKnownLinkObj( Title::makeTitle( NS_SPECIAL, 'Userlogout' ), wfMsg( 'logout' ),
 752                           "returnto={$rt}" ) . ' | ' .
 753                           $this->specialLink( 'preferences' );
 754                 }
 755                 $s .= ' | ' . $this->makeKnownLink( wfMsgForContent( 'helppage' ),
 756                   wfMsg( 'help' ) );
 757
 758                 return $s;
 759         }
 760
 761         function getSearchLink() {
 762                 $searchPage =& Title::makeTitle( NS_SPECIAL, 'Search' );
 763                 return $searchPage->getLocalURL();
 764         }
 765
 766         function escapeSearchLink() {
 767                 return htmlspecialchars( $this->getSearchLink() );
 768         }
 769
 770         function searchForm() {
 771                 global $wgRequest;
 772                 $search = $wgRequest->getText( 'search' );
 773
 774                 $s = '<form name="search" class="inline" method="post" action="'
 775                   . $this->escapeSearchLink() . "\">\n"
 776                   . '<input type="text" name="search" size="19" value="'
 777                   . htmlspecialchars(substr($search,0,256)) . "\" />\n"
 778                   . '<input type="submit" name="go" value="' . wfMsg ('go') . '" />&nbsp;'
 779                   . '<input type="submit" name="fulltext" value="' . wfMsg ('search') . "\" />\n</form>";
 780
 781                 return $s;
 782         }
 783
 784         function topLinks() {
 785                 global $wgOut;
 786                 $sep = " |\n";
 787
 788                 $s = $this->mainPageLink() . $sep
 789                   . $this->specialLink( 'recentchanges' );
 790
 791                 if ( $wgOut->isArticleRelated() ) {
 792                         $s .=  $sep . $this->editThisPage()
 793                           . $sep . $this->historyLink();
 794                 }
 795                 # Many people don't like this dropdown box
 796                 #$s .= $sep . $this->specialPagesList();
 797
 798                 /* show links to different language variants */
 799                 global $wgDisableLangConversion, $wgContLang, $wgTitle;
 800                 $variants = $wgContLang->getVariants();
 801                 if( !$wgDisableLangConversion && sizeof( $variants ) > 1 ) {
 802                         foreach( $variants as $code ) {
 803                                 $varname = $wgContLang->getVariantname( $code );
 804                                 if( $varname == 'disable' )
 805                                         continue;
 806                                 $s .= ' | <a href="' . $wgTitle->getLocalUrl( 'variant=' . $code ) . '">' . $varname . '</a>';
 807                         }
 808                 }
 809
 810                 return $s;
 811         }
 812
 813         function bottomLinks() {
 814                 global $wgOut, $wgUser, $wgTitle, $wgUseTrackbacks;
 815                 $sep = " |\n";
 816
 817                 $s = '';
 818                 if ( $wgOut->isArticleRelated() ) {
 819                         $s .= '<strong>' . $this->editThisPage() . '</strong>';
 820                         if ( $wgUser->isLoggedIn() ) {
 821                                 $s .= $sep . $this->watchThisPage();
 822                         }
 823                         $s .= $sep . $this->talkLink()
 824                           . $sep . $this->historyLink()
 825                           . $sep . $this->whatLinksHere()
 826                           . $sep . $this->watchPageLinksLink();
 827
 828                         if ($wgUseTrackbacks)
 829                                 $s .= $sep . $this->trackbackLink();
 830
 831                         if ( $wgTitle->getNamespace() == NS_USER
 832                             || $wgTitle->getNamespace() == NS_USER_TALK )
 833
 834                         {
 835                                 $id=User::idFromName($wgTitle->getText());
 836                                 $ip=User::isIP($wgTitle->getText());
 837
 838                                 if($id || $ip) { # both anons and non-anons have contri list
 839                                         $s .= $sep . $this->userContribsLink();
 840                                 }
 841                                 if( $this->showEmailUser( $id ) ) {
 842                                         $s .= $sep . $this->emailUserLink();
 843                                 }
 844                         }
 845                         if ( $wgTitle->getArticleId() ) {
 846                                 $s .= "\n<br />";
 847                                 if($wgUser->isAllowed('delete')) { $s .= $this->deleteThisPage(); }
 848                                 if($wgUser->isAllowed('protect')) { $s .= $sep . $this->protectThisPage(); }
 849                                 if($wgUser->isAllowed('move')) { $s .= $sep . $this->moveThisPage(); }
 850                         }
 851                         $s .= "<br />\n" . $this->otherLanguages();
 852                 }
 853                 return $s;
 854         }
 855
 856         function pageStats() {
 857                 global $wgOut, $wgLang, $wgArticle, $wgRequest, $wgUser;
 858                 global $wgDisableCounters, $wgMaxCredits, $wgShowCreditsIfMax, $wgTitle, $wgPageShowWatchingUsers;
 859
 860                 extract( $wgRequest->getValues( 'oldid', 'diff' ) );
 861                 if ( ! $wgOut->isArticle() ) { return ''; }
 862                 if ( isset( $oldid ) || isset( $diff ) ) { return ''; }
 863                 if ( 0 == $wgArticle->getID() ) { return ''; }
 864
 865                 $s = '';
 866                 if ( !$wgDisableCounters ) {
 867                         $count = $wgLang->formatNum( $wgArticle->getCount() );
 868                         if ( $count ) {
 869                                 $s = wfMsg( 'viewcount', $count );
 870                         }
 871                 }
 872
 873                 if (isset($wgMaxCredits) && $wgMaxCredits != 0) {
 874                     require_once('Credits.php');
 875                     $s .= ' ' . getCredits($wgArticle, $wgMaxCredits, $wgShowCreditsIfMax);
 876                 } else {
 877                     $s .= $this->lastModified();
 878                 }
 879
 880                 if ($wgPageShowWatchingUsers && $wgUser->getOption( 'shownumberswatching' )) {
 881                         $dbr =& wfGetDB( DB_SLAVE );
 882                         extract( $dbr->tableNames( 'watchlist' ) );
 883                         $sql = "SELECT COUNT(*) AS n FROM $watchlist
 884                                 WHERE wl_title='" . $dbr->strencode($wgTitle->getDBKey()) .
 885                                 "' AND  wl_namespace=" . $wgTitle->getNamespace() ;
 886                         $res = $dbr->query( $sql, 'Skin::pageStats');
 887                         $x = $dbr->fetchObject( $res );
 888                         $s .= ' ' . wfMsg('number_of_watching_users_pageview', $x->n );
 889                 }
 890
 891                 return $s . ' ' .  $this->getCopyright();
 892         }
 893
 894         function getCopyright() {
 895                 global $wgRightsPage, $wgRightsUrl, $wgRightsText, $wgRequest;
 896
 897
 898                 $oldid = $wgRequest->getVal( 'oldid' );
 899                 $diff = $wgRequest->getVal( 'diff' );
 900
 901                 if ( !is_null( $oldid ) && is_null( $diff ) && wfMsgForContent( 'history_copyright' ) !== '-' ) {
 902                         $msg = 'history_copyright';
 903                 } else {
 904                         $msg = 'copyright';
 905                 }
 906
 907                 $out = '';
 908                 if( $wgRightsPage ) {
 909                         $link = $this->makeKnownLink( $wgRightsPage, $wgRightsText );
 910                 } elseif( $wgRightsUrl ) {
 911                         $link = $this->makeExternalLink( $wgRightsUrl, $wgRightsText );
 912                 } else {
 913                         # Give up now
 914                         return $out;
 915                 }
 916                 $out .= wfMsgForContent( $msg, $link );
 917                 return $out;
 918         }
 919
 920         function getCopyrightIcon() {
 921                 global $wgRightsPage, $wgRightsUrl, $wgRightsText, $wgRightsIcon, $wgCopyrightIcon;
 922                 $out = '';
 923                 if ( isset( $wgCopyrightIcon ) && $wgCopyrightIcon ) {
 924                         $out = $wgCopyrightIcon;
 925                 } else if ( $wgRightsIcon ) {
 926                         $icon = htmlspecialchars( $wgRightsIcon );
 927                         if ( $wgRightsUrl ) {
 928                                 $url = htmlspecialchars( $wgRightsUrl );
 929                                 $out .= '<a href="'.$url.'">';
 930                         }
 931                         $text = htmlspecialchars( $wgRightsText );
 932                         $out .= "<img src=\"$icon\" alt='$text' />";
 933                         if ( $wgRightsUrl ) {
 934                                 $out .= '</a>';
 935                         }
 936                 }
 937                 return $out;
 938         }
 939
 940         function getPoweredBy() {
 941                 global $wgStylePath;
 942                 $url = htmlspecialchars( "$wgStylePath/common/images/poweredby_mediawiki_88x31.png" );
 943                 $img = '<a href="http://www.mediawiki.org/"><img src="'.$url.'" alt="MediaWiki" /></a>';
 944                 return $img;
 945         }
 946
 947         function lastModified() {
 948                 global $wgLang, $wgArticle, $wgLoadBalancer;
 949
 950                 $timestamp = $wgArticle->getTimestamp();
 951                 if ( $timestamp ) {
 952                         $d = $wgLang->timeanddate( $timestamp, true );
 953                         $s = ' ' . wfMsg( 'lastmodified', $d );
 954                 } else {
 955                         $s = '';
 956                 }
 957                 if ( $wgLoadBalancer->getLaggedSlaveMode() ) {
 958                         $s .= ' <strong>' . wfMsg( 'laggedslavemode' ) . '</strong>';
 959                 }
 960                 return $s;
 961         }
 962
 963         function logoText( $align = '' ) {
 964                 if ( '' != $align ) { $a = " align='{$align}'"; }
 965                 else { $a = ''; }
 966
 967                 $mp = wfMsg( 'mainpage' );
 968                 $titleObj = Title::newFromText( $mp );
 969                 if ( is_object( $titleObj ) ) {
 970                         $url = $titleObj->escapeLocalURL();
 971                 } else {
 972                         $url = '';
 973                 }
 974
 975                 $logourl = $this->getLogo();
 976                 $s = "<a href='{$url}'><img{$a} src='{$logourl}' alt='[{$mp}]' /></a>";
 977                 return $s;
 978         }
 979
 980         /**
 981          * show a drop-down box of special pages
 982          * @TODO crash bug913. Need to be rewrote completly.
 983          */
 984         function specialPagesList() {
 985                 global $wgUser, $wgOut, $wgContLang, $wgServer, $wgRedirectScript, $wgAvailableRights;
 986                 require_once('SpecialPage.php');
 987                 $a = array();
 988                 $pages = SpecialPage::getPages();
 989
 990                 // special pages without access restriction
 991                 foreach ( $pages[''] as $name => $page ) {
 992                         $a[$name] = $page->getDescription();
 993                 }
 994
 995                 // Other special pages that are restricted.
 996                 // Copied from SpecialSpecialpages.php
 997                 foreach($wgAvailableRights as $right) {
 998                         if( $wgUser->isAllowed($right) ) {
 999                                 /** Add all pages for this right */
1000                                 if(isset($pages[$right])) {
1001                                         foreach($pages[$right] as $name => $page) {
1002                                         $a[$name] = $page->getDescription();
1003                                         }
1004                                 }
1005                         }
1006                 }
1007
1008                 $go = wfMsg( 'go' );
1009                 $sp = wfMsg( 'specialpages' );
1010                 $spp = $wgContLang->specialPage( 'Specialpages' );
1011
1012                 $s = '<form id="specialpages" method="get" class="inline" ' .
1013                   'action="' . htmlspecialchars( "{$wgServer}{$wgRedirectScript}" ) . "\">\n";
1014                 $s .= "<select name=\"wpDropdown\">\n";
1015                 $s .= "<option value=\"{$spp}\">{$sp}</option>\n";
1016
1017
1018                 foreach ( $a as $name => $desc ) {
1019                         $p = $wgContLang->specialPage( $name );
1020                         $s .= "<option value=\"{$p}\">{$desc}</option>\n";
1021                 }
1022                 $s .= "</select>\n";
1023                 $s .= "<input type='submit' value=\"{$go}\" name='redirect' />\n";
1024                 $s .= "</form>\n";
1025                 return $s;
1026         }
1027
1028         function mainPageLink() {
1029                 $mp = wfMsgForContent( 'mainpage' );
1030                 $mptxt = wfMsg( 'mainpage');
1031                 $s = $this->makeKnownLink( $mp, $mptxt );
1032                 return $s;
1033         }
1034
1035         function copyrightLink() {
1036                 $s = $this->makeKnownLink( wfMsgForContent( 'copyrightpage' ),
1037                   wfMsg( 'copyrightpagename' ) );
1038                 return $s;
1039         }
1040
1041         function privacyLink() {
1042                 $privacy = wfMsg( 'privacy' );
1043                 if ($privacy == '-') {
1044                         return '';
1045                 } else {
1046                         return $this->makeKnownLink( wfMsgForContent( 'privacypage' ), $privacy);
1047                 }
1048         }
1049
1050         function aboutLink() {
1051                 $s = $this->makeKnownLink( wfMsgForContent( 'aboutpage' ),
1052                   wfMsg( 'aboutsite' ) );
1053                 return $s;
1054         }
1055
1056         function disclaimerLink() {
1057                 $disclaimers = wfMsg( 'disclaimers' );
1058                 if ($disclaimers == '-') {
1059                         return '';
1060                 } else {
1061                         return $this->makeKnownLink( wfMsgForContent( 'disclaimerpage' ),
1062                                                      $disclaimers );
1063                 }
1064         }
1065
1066         function editThisPage() {
1067                 global $wgOut, $wgTitle, $wgRequest;
1068
1069                 if ( ! $wgOut->isArticleRelated() ) {
1070                         $s = wfMsg( 'protectedpage' );
1071                 } else {
1072                         if ( $wgTitle->userCanEdit() ) {
1073                                 $t = wfMsg( 'editthispage' );
1074                         } else {
1075                                 $t = wfMsg( 'viewsource' );
1076                         }
1077
1078                         $s = $this->makeKnownLinkObj( $wgTitle, $t, $this->editUrlOptions() );
1079                 }
1080                 return $s;
1081         }
1082
1083         /**
1084          * Return URL options for the 'edit page' link.
1085          * This may include an 'oldid' specifier, if the current page view is such.
1086          *
1087          * @return string
1088          * @access private
1089          */
1090         function editUrlOptions() {
1091                 global $wgArticle;
1092
1093                 if( $this->mRevisionId && ! $wgArticle->isCurrent() ) {
1094                         return "action=edit&oldid=" . intval( $this->mRevisionId );
1095                 } else {
1096                         return "action=edit";
1097                 }
1098         }
1099
1100         function deleteThisPage() {
1101                 global $wgUser, $wgOut, $wgTitle, $wgRequest;
1102
1103                 $diff = $wgRequest->getVal( 'diff' );
1104                 if ( $wgTitle->getArticleId() && ( ! $diff ) && $wgUser->isAllowed('delete') ) {
1105                         $t = wfMsg( 'deletethispage' );
1106
1107                         $s = $this->makeKnownLinkObj( $wgTitle, $t, 'action=delete' );
1108                 } else {
1109                         $s = '';
1110                 }
1111                 return $s;
1112         }
1113
1114         function protectThisPage() {
1115                 global $wgUser, $wgOut, $wgTitle, $wgRequest;
1116
1117                 $diff = $wgRequest->getVal( 'diff' );
1118                 if ( $wgTitle->getArticleId() && ( ! $diff ) && $wgUser->isAllowed('protect') ) {
1119                         if ( $wgTitle->isProtected() ) {
1120                                 $t = wfMsg( 'unprotectthispage' );
1121                                 $q = 'action=unprotect';
1122                         } else {
1123                                 $t = wfMsg( 'protectthispage' );
1124                                 $q = 'action=protect';
1125                         }
1126                         $s = $this->makeKnownLinkObj( $wgTitle, $t, $q );
1127                 } else {
1128                         $s = '';
1129                 }
1130                 return $s;
1131         }
1132
1133         function watchThisPage() {
1134                 global $wgUser, $wgOut, $wgTitle;
1135
1136                 if ( $wgOut->isArticleRelated() ) {
1137                         if ( $wgTitle->userIsWatching() ) {
1138                                 $t = wfMsg( 'unwatchthispage' );
1139                                 $q = 'action=unwatch';
1140                         } else {
1141                                 $t = wfMsg( 'watchthispage' );
1142                                 $q = 'action=watch';
1143                         }
1144                         $s = $this->makeKnownLinkObj( $wgTitle, $t, $q );
1145                 } else {
1146                         $s = wfMsg( 'notanarticle' );
1147                 }
1148                 return $s;
1149         }
1150
1151         function moveThisPage() {
1152                 global $wgTitle;
1153
1154                 if ( $wgTitle->userCanMove() ) {
1155                         return $this->makeKnownLinkObj( Title::makeTitle( NS_SPECIAL, 'Movepage' ),
1156                           wfMsg( 'movethispage' ), 'target=' . $wgTitle->getPrefixedURL() );
1157                 } else {
1158                         // no message if page is protected - would be redundant
1159                         return '';
1160                 }
1161         }
1162
1163         function historyLink() {
1164                 global $wgTitle;
1165
1166                 return $this->makeKnownLinkObj( $wgTitle,
1167                   wfMsg( 'history' ), 'action=history' );
1168         }
1169
1170         function whatLinksHere() {
1171                 global $wgTitle;
1172
1173                 return $this->makeKnownLinkObj( Title::makeTitle( NS_SPECIAL, 'Whatlinkshere' ),
1174                   wfMsg( 'whatlinkshere' ), 'target=' . $wgTitle->getPrefixedURL() );
1175         }
1176
1177         function userContribsLink() {
1178                 global $wgTitle;
1179
1180                 return $this->makeKnownLinkObj( Title::makeTitle( NS_SPECIAL, 'Contributions' ),
1181                   wfMsg( 'contributions' ), 'target=' . $wgTitle->getPartialURL() );
1182         }
1183
1184         function showEmailUser( $id ) {
1185                 global $wgEnableEmail, $wgEnableUserEmail, $wgUser;
1186                 return $wgEnableEmail &&
1187                        $wgEnableUserEmail &&
1188                        $wgUser->isLoggedIn() && # show only to signed in users
1189                        0 != $id; # we can only email to non-anons ..
1190 #                      '' != $id->getEmail() && # who must have an email address stored ..
1191 #                      0 != $id->getEmailauthenticationtimestamp() && # .. which is authenticated
1192 #                      1 != $wgUser->getOption('disablemail'); # and not disabled
1193         }
1194
1195         function emailUserLink() {
1196                 global $wgTitle;
1197
1198                 return $this->makeKnownLinkObj( Title::makeTitle( NS_SPECIAL, 'Emailuser' ),
1199                   wfMsg( 'emailuser' ), 'target=' . $wgTitle->getPartialURL() );
1200         }
1201
1202         function watchPageLinksLink() {
1203                 global $wgOut, $wgTitle;
1204
1205                 if ( ! $wgOut->isArticleRelated() ) {
1206                         return '(' . wfMsg( 'notanarticle' ) . ')';
1207                 } else {
1208                         return $this->makeKnownLinkObj( Title::makeTitle( NS_SPECIAL,
1209                           'Recentchangeslinked' ), wfMsg( 'recentchangeslinked' ),
1210                           'target=' . $wgTitle->getPrefixedURL() );
1211                 }
1212         }
1213
1214         function trackbackLink() {
1215                 global $wgTitle;
1216
1217                 return "<a href=\"" . $wgTitle->trackbackURL() . "\">"
1218                         . wfMsg('trackbacklink') . "</a>";
1219         }
1220
1221         function otherLanguages() {
1222                 global $wgOut, $wgContLang, $wgTitle, $wgHideInterlanguageLinks;
1223
1224                 if ( $wgHideInterlanguageLinks ) {
1225                         return '';
1226                 }
1227
1228                 $a = $wgOut->getLanguageLinks();
1229                 if ( 0 == count( $a ) ) {
1230                         return '';
1231                 }
1232
1233                 $s = wfMsg( 'otherlanguages' ) . ': ';
1234                 $first = true;
1235                 if($wgContLang->isRTL()) $s .= '<span dir="LTR">';
1236                 foreach( $a as $l ) {
1237                         if ( ! $first ) { $s .= ' | '; }
1238                         $first = false;
1239
1240                         $nt = Title::newFromText( $l );
1241                         $url = $nt->escapeFullURL();
1242                         $text = $wgContLang->getLanguageName( $nt->getInterwiki() );
1243
1244                         if ( '' == $text ) { $text = $l; }
1245                         $style = $this->getExternalLinkAttributes( $l, $text );
1246                         $s .= "<a href=\"{$url}\"{$style}>{$text}</a>";
1247                 }
1248                 if($wgContLang->isRTL()) $s .= '</span>';
1249                 return $s;
1250         }
1251
1252         function bugReportsLink() {
1253                 $s = $this->makeKnownLink( wfMsgForContent( 'bugreportspage' ),
1254                   wfMsg( 'bugreports' ) );
1255                 return $s;
1256         }
1257
1258         function dateLink() {
1259                 $t1 = Title::newFromText( gmdate( 'F j' ) );
1260                 $t2 = Title::newFromText( gmdate( 'Y' ) );
1261
1262                 $id = $t1->getArticleID();
1263
1264                 if ( 0 == $id ) {
1265                         $s = $this->makeBrokenLink( $t1->getText() );
1266                 } else {
1267                         $s = $this->makeKnownLink( $t1->getText() );
1268                 }
1269                 $s .= ', ';
1270
1271                 $id = $t2->getArticleID();
1272
1273                 if ( 0 == $id ) {
1274                         $s .= $this->makeBrokenLink( $t2->getText() );
1275                 } else {
1276                         $s .= $this->makeKnownLink( $t2->getText() );
1277                 }
1278                 return $s;
1279         }
1280
1281         function talkLink() {
1282                 global $wgTitle;
1283
1284                 if ( NS_SPECIAL == $wgTitle->getNamespace() ) {
1285                         # No discussion links for special pages
1286                         return '';
1287                 }
1288
1289                 if( $wgTitle->isTalkPage() ) {
1290                         $link = $wgTitle->getSubjectPage();
1291                         switch( $link->getNamespace() ) {
1292                         case NS_MAIN:
1293                                 $text = wfMsg('articlepage');
1294                                 break;
1295                         case NS_USER:
1296                                 $text = wfMsg('userpage');
1297                                 break;
1298                         case NS_PROJECT:
1299                                 $text = wfMsg('wikipediapage');
1300                                 break;
1301                         case NS_IMAGE:
1302                                 $text = wfMsg('imagepage');
1303                                 break;
1304                         default:
1305                                 $text= wfMsg('articlepage');
1306                         }
1307                 } else {
1308                         $link = $wgTitle->getTalkPage();
1309                         $text = wfMsg( 'talkpage' );
1310                 }
1311
1312                 $s = $this->makeLinkObj( $link, $text );
1313
1314                 return $s;
1315         }
1316
1317         function commentLink() {
1318                 global $wgContLang, $wgTitle;
1319
1320                 if ( $wgTitle->getNamespace() == NS_SPECIAL ) {
1321                         return '';
1322                 }
1323                 return $this->makeKnownLinkObj( $wgTitle->getTalkPage(),
1324                         wfMsg( 'postcomment' ), 'action=edit&section=new' );
1325         }
1326
1327         /* these are used extensively in SkinPHPTal, but also some other places */
1328         /*static*/ function makeSpecialUrl( $name, $urlaction='' ) {
1329                 $title = Title::makeTitle( NS_SPECIAL, $name );
1330                 return $title->getLocalURL( $urlaction );
1331         }
1332
1333         /*static*/ function makeI18nUrl ( $name, $urlaction='' ) {
1334                 $title = Title::newFromText( wfMsgForContent($name) );
1335                 $this->checkTitle($title, $name);
1336                 return $title->getLocalURL( $urlaction );
1337         }
1338
1339         /*static*/ function makeUrl ( $name, $urlaction='' ) {
1340                 $title = Title::newFromText( $name );
1341                 $this->checkTitle($title, $name);
1342                 return $title->getLocalURL( $urlaction );
1343         }
1344
1345         # If url string starts with http, consider as external URL, else
1346         # internal
1347         /*static*/ function makeInternalOrExternalUrl( $name ) {
1348                 if ( preg_match( '/^(?:' . wfUrlProtocols() . ')/', $name ) ) {
1349                         return $name;
1350                 } else {
1351                         return $this->makeUrl( $name );
1352                 }
1353         }
1354
1355         # this can be passed the NS number as defined in Language.php
1356         /*static*/ function makeNSUrl( $name, $urlaction='', $namespace=NS_MAIN ) {
1357                 $title = Title::makeTitleSafe( $namespace, $name );
1358                 $this->checkTitle($title, $name);
1359                 return $title->getLocalURL( $urlaction );
1360         }
1361
1362         /* these return an array with the 'href' and boolean 'exists' */
1363         /*static*/ function makeUrlDetails ( $name, $urlaction='' ) {
1364                 $title = Title::newFromText( $name );
1365                 $this->checkTitle($title, $name);
1366                 return array(
1367                         'href' => $title->getLocalURL( $urlaction ),
1368                         'exists' => $title->getArticleID() != 0?true:false
1369                 );
1370         }
1371
1372         /**
1373          * Make URL details where the article exists (or at least it's convenient to think so)
1374          */
1375         function makeKnownUrlDetails( $name, $urlaction='' ) {
1376                 $title = Title::newFromText( $name );
1377                 $this->checkTitle($title, $name);
1378                 return array(
1379                         'href' => $title->getLocalURL( $urlaction ),
1380                         'exists' => true
1381                 );
1382         }
1383
1384         # make sure we have some title to operate on
1385         /*static*/ function checkTitle ( &$title, &$name ) {
1386                 if(!is_object($title)) {
1387                         $title = Title::newFromText( $name );
1388                         if(!is_object($title)) {
1389                                 $title = Title::newFromText( '--error: link target missing--' );
1390                         }
1391                 }
1392         }
1393
1394         /**
1395          * Build an array that represents the sidebar(s), the navigation bar among them
1396          *
1397          * @return array
1398          * @access private
1399          */
1400         function buildSidebar() {
1401                 global $wgTitle, $action;
1402
1403                 $fname = 'SkinTemplate::buildSidebar';
1404                 $pageurl = $wgTitle->getLocalURL();
1405                 wfProfileIn( $fname );
1406
1407                 $bar = array();
1408                 $lines = explode( "\n", wfMsgForContent( 'sidebar' ) );
1409                 foreach ($lines as $line) {
1410                         if (strpos($line, '*') !== 0)
1411                                 continue;
1412                         if (strpos($line, '**') !== 0) {
1413                                 $line = trim($line, '* ');
1414                                 $heading = $line;
1415                         } else {
1416                                 if (strpos($line, '|') !== false) { // sanity check
1417                                         $line = explode( '|' , trim($line, '* '), 2 );
1418                                         $link = wfMsgForContent( $line[0] );
1419                                         if ($link == '-')
1420                                                 continue;
1421                                         if (wfEmptyMsg($line[1], $text = wfMsg($line[1])))
1422                                                 $text = $line[1];
1423                                         if (wfEmptyMsg($line[0], $link))
1424                                                 $link = $line[0];
1425                                         $href = $this->makeInternalOrExternalUrl( $link );
1426                                         $bar[$heading][] = array(
1427                                                 'text' => $text,
1428                                                 'href' => $href,
1429                                                 'id' => 'n-' . strtr($line[1], ' ', '-'),
1430                                                 'active' => $pageurl == $href
1431                                         );
1432                                 } else { continue; }
1433                         }
1434                 }
1435
1436                 wfProfileOut( $fname );
1437                 return $bar;
1438         }
1439 }
1440
1441 }
1442 ?>