replace TYPE= with ENGINE=, (supported since 4.0, TYPE deprecated since 4.1)
[lhc/web/wiklou.git] / includes / Skin.php
index 5ef9dce..5dafd69 100644 (file)
@@ -1,4 +1,6 @@
 <?php
+if ( ! defined( 'MEDIAWIKI' ) )
+       die( -1 );
 
 /**
  *
@@ -6,11 +8,6 @@
  * @subpackage Skins
  */
 
-/**
- * This is not a valid entry point, perform no further processing unless MEDIAWIKI is defined
- */
-if( defined( "MEDIAWIKI" ) ) {
-
 # See skin.txt
 require_once( 'Linker.php' );
 require_once( 'Image.php' );
@@ -24,7 +21,8 @@ $skinDir = dir($IP.'/skins');
 
 # while code from www.php.net
 while (false !== ($file = $skinDir->read())) {
-       if(preg_match('/^([^.].*)\.php$/',$file, $matches)) {
+       // Skip non-PHP files, hidden files, and '.dep' includes
+       if(preg_match('/^([^.]*)\.php$/',$file, $matches)) {
                $aSkin = $matches[1];
                $wgValidSkinNames[strtolower($aSkin)] = $aSkin;
        }
@@ -32,31 +30,8 @@ while (false !== ($file = $skinDir->read())) {
 $skinDir->close();
 unset($matches);
 
-require_once( 'RecentChange.php' );
-
 /**
- * @todo document
- * @package MediaWiki
- */
-class RCCacheEntry extends RecentChange
-{
-       var $secureName, $link;
-       var $curlink , $difflink, $lastlink , $usertalklink , $versionlink ;
-       var $userlink, $timestamp, $watched;
-
-       function newFromParent( $rc )
-       {
-               $rc2 = new RCCacheEntry;
-               $rc2->mAttribs = $rc->mAttribs;
-               $rc2->mExtra = $rc->mExtra;
-               return $rc2;
-       }
-} ;
-
-
-/**
- * The main skin class that provide methods and properties for all other skins
- * including PHPTal skins.
+ * The main skin class that provide methods and properties for all other skins.
  * This base class is also the "Standard" skin.
  * @package MediaWiki
  */
@@ -73,13 +48,96 @@ class Skin extends Linker {
        /** Constructor, call parent constructor */
        function Skin() { parent::Linker(); }
 
+       /**
+        * Fetch the set of available skins.
+        * @return array of strings
+        * @static
+        */
        function getSkinNames() {
                global $wgValidSkinNames;
                return $wgValidSkinNames;
        }
 
+       /**
+        * Normalize a skin preference value to a form that can be loaded.
+        * If a skin can't be found, it will fall back to the configured
+        * default (or the old 'Classic' skin if that's broken).
+        * @param string $key
+        * @return string
+        * @static
+        */
+       function normalizeKey( $key ) {
+               global $wgDefaultSkin;
+               $skinNames = Skin::getSkinNames();
+
+               if( $key == '' ) {
+                       // Don't return the default immediately;
+                       // in a misconfiguration we need to fall back.
+                       $key = $wgDefaultSkin;
+               }
+
+               if( isset( $skinNames[$key] ) ) {
+                       return $key;
+               }
+
+               // Older versions of the software used a numeric setting
+               // in the user preferences.
+               $fallback = array(
+                       0 => $wgDefaultSkin,
+                       1 => 'nostalgia',
+                       2 => 'cologneblue' );
+
+               if( isset( $fallback[$key] ) ){
+                       $key = $fallback[$key];
+               }
+
+               if( isset( $skinNames[$key] ) ) {
+                       return $key;
+               } else {
+                       // The old built-in skin
+                       return 'standard';
+               }
+       }
+
+       /**
+        * Factory method for loading a skin of a given type
+        * @param string $key 'monobook', 'standard', etc
+        * @return Skin
+        * @static
+        */
+       function &newFromKey( $key ) {
+               $key = Skin::normalizeKey( $key );
+
+               $skinNames = Skin::getSkinNames();
+               $skinName = $skinNames[$key];
+
+               global $IP;
+
+               # Grab the skin class and initialise it.
+               wfSuppressWarnings();
+               // Preload base classes to work around APC/PHP5 bug
+               include_once( $IP.'/skins/'.$skinName.'.deps.php' );
+               wfRestoreWarnings();
+               require_once( $IP.'/skins/'.$skinName.'.php' );
+
+               # Check if we got if not failback to default skin
+               $className = 'Skin'.$skinName;
+               if( !class_exists( $className ) ) {
+                       # DO NOT die if the class isn't found. This breaks maintenance
+                       # scripts and can cause a user account to be unrecoverable
+                       # except by SQL manipulation if a previously valid skin name
+                       # is no longer valid.
+                       $className = 'SkinStandard';
+                       require_once( $IP.'/skins/Standard.php' );
+               }
+               $skin =& new $className;
+               return $skin;
+       }
+
        /** @return string path to the skin stylesheet */
-       function getStylesheet() { return 'common/wikistandard.css'; }
+       function getStylesheet() {
+               return 'common/wikistandard.css?1';
+       }
 
        /** @return string skin name */
        function getSkinName() {
@@ -96,18 +154,24 @@ class Skin extends Linker {
        }
 
        function initPage( &$out ) {
+               global $wgFavicon;
+
                $fname = 'Skin::initPage';
                wfProfileIn( $fname );
 
-               $out->addLink( array( 'rel' => 'shortcut icon', 'href' => '/favicon.ico' ) );
+               if( false !== $wgFavicon ) {
+                       $out->addLink( array( 'rel' => 'shortcut icon', 'href' => $wgFavicon ) );
+               }
 
                $this->addMetadataLinks($out);
 
+               $this->mRevisionId = $out->mRevisionId;
+
                wfProfileOut( $fname );
        }
 
        function addMetadataLinks( &$out ) {
-               global $wgTitle, $wgEnableDublinCoreRdf, $wgEnableCreativeCommonsRdf, $wgRdfMimeType, $action;
+               global $wgTitle, $wgEnableDublinCoreRdf, $wgEnableCreativeCommonsRdf;
                global $wgRightsPage, $wgRightsUrl;
 
                if( $out->isArticleRelated() ) {
@@ -167,14 +231,13 @@ class Skin extends Linker {
 
                $out->out( $this->afterContent() );
 
-               wfProfileClose();
                $out->out( $out->reportTime() );
 
                $out->out( "\n</body></html>" );
        }
 
        function getHeadScripts() {
-               global $wgStylePath, $wgUser, $wgContLang, $wgAllowUserJs, $wgJsMimeType;
+               global $wgStylePath, $wgUser, $wgAllowUserJs, $wgJsMimeType;
                $r = "<script type=\"{$wgJsMimeType}\" src=\"{$wgStylePath}/common/wikibits.js\"></script>\n";
                if( $wgAllowUserJs && $wgUser->isLoggedIn() ) {
                        $userpage = $wgUser->getUserPage();
@@ -210,23 +273,18 @@ class Skin extends Linker {
                        $wgRequest->getVal( 'wpEditToken' ) );
        }
 
-       # get the user/site-specific stylesheet, SkinPHPTal called from RawPage.php (settings are cached that way)
+       # get the user/site-specific stylesheet, SkinTemplate loads via RawPage.php (settings are cached that way)
        function getUserStylesheet() {
-               global $wgOut, $wgStylePath, $wgContLang, $wgUser, $wgRequest, $wgTitle, $wgAllowUserCss;
+               global $wgStylePath, $wgRequest, $wgContLang, $wgSquidMaxage;
                $sheet = $this->getStylesheet();
                $action = $wgRequest->getText('action');
                $s = "@import \"$wgStylePath/$sheet\";\n";
                if($wgContLang->isRTL()) $s .= "@import \"$wgStylePath/common/common_rtl.css\";\n";
-               if( $wgAllowUserCss && $wgUser->isLoggedIn() ) { # logged in
-                       if($wgTitle->isCssSubpage() && $this->userCanPreview( $action ) ) {
-                               $s .= $wgRequest->getText('wpTextbox1');
-                       } else {
-                               $userpage = $wgUser->getUserPage();
-                               $s.= '@import "'.$this->makeUrl(
-                                       $userpage->getPrefixedText().'/'.$this->getSkinName().'.css',
-                                       'action=raw&ctype=text/css').'";'."\n";
-                       }
-               }
+
+               $query = "action=raw&ctype=text/css&smaxage=$wgSquidMaxage";
+               $s .= '@import "' . $this->makeNSUrl( 'Common.css', $query, NS_MEDIAWIKI ) . "\";\n" .
+                       '@import "'.$this->makeNSUrl( ucfirst( $this->getSkinName() . '.css' ), $query, NS_MEDIAWIKI ) . "\";\n";
+
                $s .= $this->doGetUserStyles();
                return $s."\n";
        }
@@ -240,7 +298,6 @@ class Skin extends Linker {
         * Return html code that include User stylesheets
         */
        function getUserStyles() {
-               global $wgOut, $wgStylePath, $wgLang;
                $s = "<style type='text/css'>\n";
                $s .= "/*/*/ /*<![CDATA[*/\n"; # <-- Hide the styles from Netscape 4 without hiding them from IE/Mac
                $s .= $this->getUserStylesheet();
@@ -253,10 +310,20 @@ class Skin extends Linker {
         * Some styles that are set by user through the user settings interface.
         */
        function doGetUserStyles() {
-               global $wgUser, $wgContLang;
+               global $wgUser, $wgUser, $wgRequest, $wgTitle, $wgAllowUserCss;
 
-               $csspage = $wgContLang->getNsText( NS_MEDIAWIKI ) . ':' . $this->getSkinName() . '.css';
-               $s = '@import "'.$this->makeUrl($csspage, 'action=raw&ctype=text/css')."\";\n";
+               $s = '';
+
+               if( $wgAllowUserCss && $wgUser->isLoggedIn() ) { # logged in
+                       if($wgTitle->isCssSubpage() && $this->userCanPreview( $action ) ) {
+                               $s .= $wgRequest->getText('wpTextbox1');
+                       } else {
+                               $userpage = $wgUser->getUserPage();
+                               $s.= '@import "'.$this->makeUrl(
+                                       $userpage->getPrefixedText().'/'.$this->getSkinName().'.css',
+                                       'action=raw&ctype=text/css').'";'."\n";
+                       }
+               }
 
                return $s . $this->reallyDoGetUserStyles();
        }
@@ -302,7 +369,7 @@ END;
        }
 
        function getBodyOptions() {
-               global $wgUser, $wgTitle, $wgNamespaceBackgrounds, $wgOut, $wgRequest;
+               global $wgUser, $wgTitle, $wgOut, $wgRequest;
 
                extract( $wgRequest->getValues( 'oldid', 'redirect', 'diff' ) );
 
@@ -311,17 +378,10 @@ END;
                }
                else $a = array( 'bgcolor' => '#FFFFFF' );
                if($wgOut->isArticle() && $wgUser->getOption('editondblclick') &&
-                 (!$wgTitle->isProtected() || $wgUser->isAllowed('protect')) ) {
+                 $wgTitle->userCanEdit() ) {
                        $t = wfMsg( 'editthispage' );
-                       $oid = $red = '';
-                       if ( !empty($redirect) && $redirect == 'no' ) {
-                               $red = "&redirect={$redirect}";
-                       }
-                       if ( !empty($oldid) && ! isset( $diff ) ) {
-                               $oid = "&oldid=" . IntVal( $oldid );
-                       }
-                       $s = $wgTitle->getFullURL( "action=edit{$oid}{$red}" );
-                       $s = 'document.location = "' .$s .'";';
+                       $s = $wgTitle->getFullURL( $this->editUrlOptions() );
+                       $s = 'document.location = "' .wfEscapeJSString( $s ) .'";';
                        $a += array ('ondblclick' => $s);
 
                }
@@ -352,7 +412,7 @@ END;
        }
 
        function doBeforeContent() {
-               global $wgOut, $wgTitle, $wgContLang;
+               global $wgContLang;
                $fname = 'Skin::doBeforeContent';
                wfProfileIn( $fname );
 
@@ -415,18 +475,21 @@ END;
 
 
        function getCategoryLinks () {
-               global $wgOut, $wgTitle, $wgParser;
-               global $wgUseCategoryMagic, $wgUseCategoryBrowser, $wgLang;
+               global $wgOut, $wgTitle, $wgUseCategoryBrowser;
+               global $wgContLang;
 
-               if( !$wgUseCategoryMagic ) return '' ;
                if( count( $wgOut->mCategoryLinks ) == 0 ) return '';
 
-               # Taken out so that they will be displayed in previews -- TS
-               #if( !$wgOut->isArticle() ) return '';
+               // Use Unicode bidi embedding override characters,
+               // to make sure links don't smash each other up in ugly ways.
+               $dir = $wgContLang->isRTL() ? 'rtl' : 'ltr';
+               $embed = "<span dir='$dir'>";
+               $pop = '</span>';
+               $t = $embed . implode ( "$pop | $embed" , $wgOut->mCategoryLinks ) . $pop;
 
-               $t = implode ( ' | ' , $wgOut->mCategoryLinks ) ;
+               $msg = count( $wgOut->mCategoryLinks ) === 1 ? 'categories1' : 'categories';
                $s = $this->makeKnownLinkObj( Title::makeTitle( NS_SPECIAL, 'Categories' ),
-                       wfMsg( 'categories' ), 'article=' . urlencode( $wgTitle->getPrefixedDBkey() ) )
+                       wfMsg( $msg ), 'article=' . urlencode( $wgTitle->getPrefixedDBkey() ) )
                        . ': ' . $t;
 
                # optional 'dmoz-like' category browser. Will be shown under the list
@@ -436,29 +499,36 @@ END;
 
                        # get a big array of the parents tree
                        $parenttree = $wgTitle->getParentCategoryTree();
-
                        # Skin object passed by reference cause it can not be
-                       # accessed under the method subfunction walkThrough.
-                       $s .= Skin::drawCategoryBrowser($parenttree, $this);
+                       # accessed under the method subfunction drawCategoryBrowser
+                       $tempout = explode("\n", Skin::drawCategoryBrowser($parenttree, $this) );
+                       # Clean out bogus first entry and sort them
+                       unset($tempout[0]);
+                       asort($tempout);
+                       # Output one per line
+                       $s .= implode("<br />\n", $tempout);
                }
 
                return $s;
        }
 
-       # Render the array as a serie of links
-       function drawCategoryBrowser ($tree, &$skin) {
+       /** Render the array as a serie of links.
+        * @param array $tree Categories tree returned by Title::getParentCategoryTree
+        * @param object &skin Skin passed by reference
+        * @return string separated by &gt;, terminate with "\n"
+        */
+       function drawCategoryBrowser($tree, &$skin) {
                $return = '';
                foreach ($tree as $element => $parent) {
                        if (empty($parent)) {
                                # element start a new list
-                               $return .= '<br />';
+                               $return .= "\n";
                        } else {
                                # grab the others elements
-                               $return .= Skin::drawCategoryBrowser($parent, $skin);
+                               $return .= Skin::drawCategoryBrowser($parent, $skin) . ' &gt; ';
                        }
                        # add our current element to the list
                        $eltitle = Title::NewFromText($element);
-                       if (!empty($parent)) $return .= ' &gt; ';
                        $return .=  $skin->makeLinkObj( $eltitle, $eltitle->getText() ) ;
                }
                return $return;
@@ -500,7 +570,7 @@ END;
        function doAfterContent() { }
 
        function pageTitleLinks() {
-               global $wgOut, $wgTitle, $wgUser, $wgContLang, $wgRequest;
+               global $wgOut, $wgTitle, $wgUser, $wgRequest;
 
                extract( $wgRequest->getValues( 'oldid', 'diff' ) );
                $action = $wgRequest->getText( 'action' );
@@ -510,6 +580,10 @@ END;
                if( $disclaimer ) {
                        $s .= ' | ' . $disclaimer;
                }
+               $privacy = $this->privacyLink(); # may be empty too
+               if( $privacy ) {
+                       $s .= ' | ' . $privacy;
+               }
 
                if ( $wgOut->isArticleRelated() ) {
                        if ( $wgTitle->getNamespace() == NS_IMAGE ) {
@@ -528,13 +602,12 @@ END;
                }
 
                if ( $wgUser->getNewtalk() ) {
-               # do not show "You have new messages" text when we are viewing our
-               # own talk page
-
+                       # do not show "You have new messages" text when we are viewing our
+                       # own talk page
                        if( !$wgTitle->equals( $wgUser->getTalkPage() ) ) {
-                               $tl = $this->makeKnownLinkObj( $wgUser->getTalkPage(),
-                                               wfMsg('newmessageslink') );
-                               $s.= ' | <strong>'. wfMsg( 'newmessages', $tl ) . '</strong>';
+                               $tl = $this->makeKnownLinkObj( $wgUser->getTalkPage(), wfMsgHtml( 'newmessageslink' ), 'redirect=no' );
+                               $dl = $this->makeKnownLinkObj( $wgUser->getTalkPage(), wfMsgHtml( 'newmessagesdifflink' ), 'diff=cur' );
+                               $s.= ' | <strong>'. wfMsg( 'youhavenewmessages', $tl, $dl ) . '</strong>';
                                # disable caching
                                $wgOut->setSquidMaxage(0);
                                $wgOut->enableClientCache(false);
@@ -550,13 +623,19 @@ END;
 
        function getUndeleteLink() {
                global $wgUser, $wgTitle, $wgContLang, $action;
-               if( $wgUser->isAllowed('rollback') &&
+               if(     $wgUser->isAllowed( 'deletedhistory' ) &&
                        (($wgTitle->getArticleId() == 0) || ($action == "history")) &&
-                       ($n = $wgTitle->isDeleted() ) ) {
-                       return wfMsg( 'thisisdeleted',
+                       ($n = $wgTitle->isDeleted() ) )
+               {
+                       if ( $wgUser->isAllowed( 'delete' ) ) {
+                               $msg = 'thisisdeleted';
+                       } else {
+                               $msg = 'viewdeleted';
+                       }
+                       return wfMsg( $msg,
                                $this->makeKnownLink(
                                        $wgContLang->SpecialPage( 'Undelete/' . $wgTitle->getPrefixedDBkey() ),
-                                       wfMsg( 'restorelink', $n ) ) );
+                                       wfMsg( 'restorelink' . ($n == 1 ? '1' : ''), $n ) ) );
                }
                return '';
        }
@@ -584,7 +663,7 @@ END;
        }
 
        function pageTitle() {
-               global $wgOut, $wgTitle, $wgUser;
+               global $wgOut;
 
                $s = '<h1 class="pagetitle">' . htmlspecialchars( $wgOut->getPageTitle() ) . '</h1>';
                return $s;
@@ -617,7 +696,7 @@ END;
                                        $c++;
                                        if ($c<count($links)) {
                                                $growinglink .= $link;
-                                               $getlink = $this->makeLink( $growinglink, $link );
+                                               $getlink = $this->makeLink( $growinglink, htmlspecialchars( $link ) );
                                                if(preg_match('/class="new"/i',$getlink)) { break; } # this is a hack, but it saves time
                                                if ($c>1) {
                                                        $subpages .= ' | ';
@@ -634,7 +713,7 @@ END;
        }
 
        function nameAndLogin() {
-               global $wgUser, $wgTitle, $wgLang, $wgContLang, $wgShowIPinHeader, $wgIP;
+               global $wgUser, $wgTitle, $wgLang, $wgContLang, $wgShowIPinHeader;
 
                $li = $wgContLang->specialPage( 'Userlogin' );
                $lo = $wgContLang->specialPage( 'Userlogout' );
@@ -642,10 +721,10 @@ END;
                $s = '';
                if ( $wgUser->isAnon() ) {
                        if( $wgShowIPinHeader && isset( $_COOKIE[ini_get('session.name')] ) ) {
-                               $n = $wgIP;
+                               $n = wfGetIP();
 
                                $tl = $this->makeKnownLinkObj( $wgUser->getTalkPage(),
-                                 $wgContLang->getNsText( NS_TALK ) );
+                                 $wgLang->getNsText( NS_TALK ) );
 
                                $s .= $n . ' ('.$tl.')';
                        } else {
@@ -664,7 +743,7 @@ END;
                        $n = $wgUser->getName();
                        $rt = $wgTitle->getPrefixedURL();
                        $tl = $this->makeKnownLinkObj( $wgUser->getTalkPage(),
-                         $wgContLang->getNsText( NS_TALK ) );
+                         $wgLang->getNsText( NS_TALK ) );
 
                        $tl = " ({$tl})";
 
@@ -733,7 +812,7 @@ END;
        }
 
        function bottomLinks() {
-               global $wgOut, $wgUser, $wgTitle;
+               global $wgOut, $wgUser, $wgTitle, $wgUseTrackbacks;
                $sep = " |\n";
 
                $s = '';
@@ -747,6 +826,9 @@ END;
                          . $sep . $this->whatLinksHere()
                          . $sep . $this->watchPageLinksLink();
 
+                       if ($wgUseTrackbacks)
+                               $s .= $sep . $this->trackbackLink();
+
                        if ( $wgTitle->getNamespace() == NS_USER
                            || $wgTitle->getNamespace() == NS_USER_TALK )
 
@@ -837,7 +919,7 @@ END;
        }
 
        function getCopyrightIcon() {
-               global $wgRightsPage, $wgRightsUrl, $wgRightsText, $wgRightsIcon, $wgCopyrightIcon;
+               global $wgRightsUrl, $wgRightsText, $wgRightsIcon, $wgCopyrightIcon;
                $out = '';
                if ( isset( $wgCopyrightIcon ) && $wgCopyrightIcon ) {
                        $out = $wgCopyrightIcon;
@@ -901,7 +983,7 @@ END;
         * @TODO crash bug913. Need to be rewrote completly.
         */
        function specialPagesList() {
-               global $wgUser, $wgOut, $wgContLang, $wgServer, $wgRedirectScript, $wgAvailableRights;
+               global $wgUser, $wgContLang, $wgServer, $wgRedirectScript, $wgAvailableRights;
                require_once('SpecialPage.php');
                $a = array();
                $pages = SpecialPage::getPages();
@@ -957,13 +1039,21 @@ END;
                return $s;
        }
 
+       function privacyLink() {
+               $privacy = wfMsg( 'privacy' );
+               if ($privacy == '-') {
+                       return '';
+               } else {
+                       return $this->makeKnownLink( wfMsgForContent( 'privacypage' ), $privacy);
+               }
+       }
+
        function aboutLink() {
                $s = $this->makeKnownLink( wfMsgForContent( 'aboutpage' ),
                  wfMsg( 'aboutsite' ) );
                return $s;
        }
 
-
        function disclaimerLink() {
                $disclaimers = wfMsg( 'disclaimers' );
                if ($disclaimers == '-') {
@@ -975,11 +1065,7 @@ END;
        }
 
        function editThisPage() {
-               global $wgOut, $wgTitle, $wgRequest;
-
-               $oldid = $wgRequest->getVal( 'oldid' );
-               $diff = $wgRequest->getVal( 'diff' );
-               $redirect = $wgRequest->getVal( 'redirect' );
+               global $wgOut, $wgTitle;
 
                if ( ! $wgOut->isArticleRelated() ) {
                        $s = wfMsg( 'protectedpage' );
@@ -989,19 +1075,31 @@ END;
                        } else {
                                $t = wfMsg( 'viewsource' );
                        }
-                       $oid = $red = '';
 
-                       if ( !is_null( $redirect ) ) { $red = "&redirect={$redirect}"; }
-                       if ( $oldid && ! isset( $diff ) ) {
-                               $oid = '&oldid='.$oldid;
-                       }
-                       $s = $this->makeKnownLinkObj( $wgTitle, $t, "action=edit{$oid}{$red}" );
+                       $s = $this->makeKnownLinkObj( $wgTitle, $t, $this->editUrlOptions() );
                }
                return $s;
        }
 
+       /**
+        * Return URL options for the 'edit page' link.
+        * This may include an 'oldid' specifier, if the current page view is such.
+        *
+        * @return string
+        * @access private
+        */
+       function editUrlOptions() {
+               global $wgArticle;
+
+               if( $this->mRevisionId && ! $wgArticle->isCurrent() ) {
+                       return "action=edit&oldid=" . intval( $this->mRevisionId );
+               } else {
+                       return "action=edit";
+               }
+       }
+
        function deleteThisPage() {
-               global $wgUser, $wgOut, $wgTitle, $wgRequest;
+               global $wgUser, $wgTitle, $wgRequest;
 
                $diff = $wgRequest->getVal( 'diff' );
                if ( $wgTitle->getArticleId() && ( ! $diff ) && $wgUser->isAllowed('delete') ) {
@@ -1015,7 +1113,7 @@ END;
        }
 
        function protectThisPage() {
-               global $wgUser, $wgOut, $wgTitle, $wgRequest;
+               global $wgUser, $wgTitle, $wgRequest;
 
                $diff = $wgRequest->getVal( 'diff' );
                if ( $wgTitle->getArticleId() && ( ! $diff ) && $wgUser->isAllowed('protect') ) {
@@ -1034,7 +1132,7 @@ END;
        }
 
        function watchThisPage() {
-               global $wgUser, $wgOut, $wgTitle;
+               global $wgOut, $wgTitle;
 
                if ( $wgOut->isArticleRelated() ) {
                        if ( $wgTitle->userIsWatching() ) {
@@ -1114,8 +1212,15 @@ END;
                }
        }
 
+       function trackbackLink() {
+               global $wgTitle;
+
+               return "<a href=\"" . $wgTitle->trackbackURL() . "\">"
+                       . wfMsg('trackbacklink') . "</a>";
+       }
+
        function otherLanguages() {
-               global $wgOut, $wgContLang, $wgTitle, $wgHideInterlanguageLinks;
+               global $wgOut, $wgContLang, $wgHideInterlanguageLinks;
 
                if ( $wgHideInterlanguageLinks ) {
                        return '';
@@ -1152,13 +1257,10 @@ END;
        }
 
        function dateLink() {
-               global $wgLinkCache;
                $t1 = Title::newFromText( gmdate( 'F j' ) );
                $t2 = Title::newFromText( gmdate( 'Y' ) );
 
-               $wgLinkCache->suspend();
                $id = $t1->getArticleID();
-               $wgLinkCache->resume();
 
                if ( 0 == $id ) {
                        $s = $this->makeBrokenLink( $t1->getText() );
@@ -1167,9 +1269,7 @@ END;
                }
                $s .= ', ';
 
-               $wgLinkCache->suspend();
                $id = $t2->getArticleID();
-               $wgLinkCache->resume();
 
                if ( 0 == $id ) {
                        $s .= $this->makeBrokenLink( $t2->getText() );
@@ -1180,7 +1280,7 @@ END;
        }
 
        function talkLink() {
-               global $wgTitle, $wgLinkCache;
+               global $wgTitle;
 
                if ( NS_SPECIAL == $wgTitle->getNamespace() ) {
                        # No discussion links for special pages
@@ -1210,15 +1310,13 @@ END;
                        $text = wfMsg( 'talkpage' );
                }
 
-               $wgLinkCache->suspend();
                $s = $this->makeLinkObj( $link, $text );
-               $wgLinkCache->resume();
 
                return $s;
        }
 
        function commentLink() {
-               global $wgContLang, $wgTitle, $wgLinkCache;
+               global $wgTitle;
 
                if ( $wgTitle->getNamespace() == NS_SPECIAL ) {
                        return '';
@@ -1227,7 +1325,7 @@ END;
                        wfMsg( 'postcomment' ), 'action=edit&section=new' );
        }
 
-       /* these are used extensively in SkinPHPTal, but also some other places */
+       /* these are used extensively in SkinTemplate, but also some other places */
        /*static*/ function makeSpecialUrl( $name, $urlaction='' ) {
                $title = Title::makeTitle( NS_SPECIAL, $name );
                return $title->getLocalURL( $urlaction );
@@ -1248,7 +1346,7 @@ END;
        # If url string starts with http, consider as external URL, else
        # internal
        /*static*/ function makeInternalOrExternalUrl( $name ) {
-               if ( strncmp( $name, 'http', 4 ) == 0 ) {
+               if ( preg_match( '/^(?:' . wfUrlProtocols() . ')/', $name ) ) {
                        return $name;
                } else {
                        return $this->makeUrl( $name );
@@ -1272,6 +1370,18 @@ END;
                );
        }
 
+       /**
+        * Make URL details where the article exists (or at least it's convenient to think so)
+        */
+       function makeKnownUrlDetails( $name, $urlaction='' ) {
+               $title = Title::newFromText( $name );
+               $this->checkTitle($title, $name);
+               return array(
+                       'href' => $title->getLocalURL( $urlaction ),
+                       'exists' => true
+               );
+       }
+
        # make sure we have some title to operate on
        /*static*/ function checkTitle ( &$title, &$name ) {
                if(!is_object($title)) {
@@ -1289,9 +1399,26 @@ END;
         * @access private
         */
        function buildSidebar() {
+               global $wgDBname, $parserMemc;
+               global $wgLanguageCode, $wgContLanguageCode;
+
                $fname = 'SkinTemplate::buildSidebar';
+
                wfProfileIn( $fname );
 
+               if ($wgLanguageCode == $wgContLanguageCode)
+                       $cacheSidebar = true;
+               else
+                       $cacheSidebar = false;
+               
+               if ($cacheSidebar) {
+                       $cachedsidebar=$parserMemc->get("{$wgDBname}:sidebar");
+                       if ($cachedsidebar!="") {
+                               wfProfileOut($fname);
+                               return $cachedsidebar;
+                       }
+               }
+
                $bar = array();
                $lines = explode( "\n", wfMsgForContent( 'sidebar' ) );
                foreach ($lines as $line) {
@@ -1306,19 +1433,24 @@ END;
                                        $link = wfMsgForContent( $line[0] );
                                        if ($link == '-')
                                                continue;
+                                       if (wfEmptyMsg($line[1], $text = wfMsg($line[1])))
+                                               $text = $line[1];
+                                       if (wfEmptyMsg($line[0], $link))
+                                               $link = $line[0];
+                                       $href = $this->makeInternalOrExternalUrl( $link );
                                        $bar[$heading][] = array(
-                                               'text' => wfMsg( $line[1] ),
-                                               'href' => $this->makeInternalOrExternalUrl( $link ),
-                                               'id' => 'n-' . $line[1],
+                                               'text' => $text,
+                                               'href' => $href,
+                                               'id' => 'n-' . strtr($line[1], ' ', '-'),
+                                               'active' => false
                                        );
                                } else { continue; }
                        }
                }
-
+               if ($cacheSidebar)
+                       $cachednotice=$parserMemc->set("{$wgDBname}:sidebar",$bar,86400);
                wfProfileOut( $fname );
                return $bar;
        }
 }
-
-}
 ?>