Warn that SpecialPage::execute() will be made abstract at some point in the future...
[lhc/web/wiklou.git] / includes / SpecialPage.php
index 558296a..dd1e8d2 100644 (file)
@@ -74,192 +74,25 @@ class SpecialPage {
         */
        var $mAddedRedirectParams = array();
        /**
-        * List of special pages, followed by parameters.
-        * If the only parameter is a string, that is the page name.
-        * Otherwise, it is an array. The format is one of:
-        ** array( 'SpecialPage', name, right )
-        ** array( 'IncludableSpecialPage', name, right, listed? )
-        ** array( 'UnlistedSpecialPage', name, right )
-        ** array( 'SpecialRedirectToSpecial', name, page to redirect to, special page param, ... )
+        * Current request context
+        * @var RequestContext
         */
-       static public $mList = array(
-               # Maintenance Reports
-               'BrokenRedirects'           => 'BrokenRedirectsPage',
-               'Deadendpages'              => 'DeadendpagesPage',
-               'DoubleRedirects'           => 'DoubleRedirectsPage',
-               'Longpages'                 => 'LongpagesPage',
-               'Ancientpages'              => 'AncientpagesPage',
-               'Lonelypages'               => 'LonelypagesPage',
-               'Fewestrevisions'           => 'FewestrevisionsPage',
-               'Withoutinterwiki'          => 'WithoutinterwikiPage',
-               'Protectedpages'            => 'SpecialProtectedpages',
-               'Protectedtitles'           => 'SpecialProtectedtitles',
-               'Shortpages'                => 'ShortpagesPage',
-               'Uncategorizedcategories'   => 'UncategorizedcategoriesPage',
-               'Uncategorizedimages'       => 'UncategorizedimagesPage',
-               'Uncategorizedpages'        => 'UncategorizedpagesPage',
-               'Uncategorizedtemplates'    => 'UncategorizedtemplatesPage',
-               'Unusedcategories'          => 'UnusedcategoriesPage',
-               'Unusedimages'              => 'UnusedimagesPage',
-               'Unusedtemplates'           => 'UnusedtemplatesPage',
-               'Unwatchedpages'            => 'UnwatchedpagesPage',
-               'Wantedcategories'          => 'WantedcategoriesPage',
-               'Wantedfiles'               => 'WantedfilesPage',
-               'Wantedpages'               => 'WantedpagesPage',
-               'Wantedtemplates'           => 'WantedtemplatesPage',
-
-               # List of pages
-               'Allpages'                  => 'SpecialAllpages',
-               'Prefixindex'               => 'SpecialPrefixindex',
-               'Categories'                => 'SpecialCategories',
-               'Disambiguations'           => 'DisambiguationsPage',
-               'Listredirects'             => 'ListredirectsPage',
-
-               # Login/create account
-               'Userlogin'                 => 'LoginForm',
-               'CreateAccount'             => array( 'SpecialRedirectToSpecial', 'CreateAccount', 'Userlogin', 'signup', array( 'uselang' ) ),
-
-               # Users and rights
-               'Blockip'                   => 'IPBlockForm',
-               'Ipblocklist'               => 'IPUnblockForm',
-               'Unblock'                   => array( 'SpecialRedirectToSpecial', 'Unblock', 'Ipblocklist', false, array( 'uselang', 'ip', 'id' ), array( 'action' => 'unblock' ) ),
-               'Resetpass'                 => 'SpecialResetpass',
-               'DeletedContributions'      => 'DeletedContributionsPage',
-               'Preferences'               => 'SpecialPreferences',
-               'Contributions'             => 'SpecialContributions',
-               'Listgrouprights'           => 'SpecialListGroupRights',
-               'Listusers'                 => array( 'SpecialPage', 'Listusers' ),
-               'Listadmins'                => array( 'SpecialRedirectToSpecial', 'Listadmins', 'Listusers', 'sysop' ),
-               'Listbots'                  => array( 'SpecialRedirectToSpecial', 'Listbots', 'Listusers', 'bot' ),
-               'Activeusers'               => 'SpecialActiveUsers',
-               'Userrights'                => 'UserrightsPage',
-               'DisableAccount'            => 'SpecialDisableAccount',
-
-               # Recent changes and logs
-               'Newimages'                 => array( 'IncludableSpecialPage', 'Newimages' ),
-               'Log'                       => 'SpecialLog',
-               'Watchlist'                 => array( 'SpecialPage', 'Watchlist' ),
-               'Newpages'                  => 'SpecialNewpages',
-               'Recentchanges'             => 'SpecialRecentchanges',
-               'Recentchangeslinked'       => 'SpecialRecentchangeslinked',
-               'Tags'                      => 'SpecialTags',
-
-               # Media reports and uploads
-               'Listfiles'                 => array( 'SpecialPage', 'Listfiles' ),
-               'Filepath'                  => 'SpecialFilepath',
-               'MIMEsearch'                => 'MIMEsearchPage',
-               'FileDuplicateSearch'       => 'FileDuplicateSearchPage',
-               'Upload'                    => 'SpecialUpload',
-               'UploadStash'               => 'SpecialUploadStash',
-
-               # Wiki data and tools
-               'Statistics'                => 'SpecialStatistics',
-               'Allmessages'               => 'SpecialAllmessages',
-               'Version'                   => 'SpecialVersion',
-               'Lockdb'                    => 'SpecialLockdb',
-               'Unlockdb'                  => 'SpecialUnlockdb',
-
-               # Redirecting special pages
-               'LinkSearch'                => 'LinkSearchPage',
-               'Randompage'                => 'Randompage',
-               'Randomredirect'            => 'SpecialRandomredirect',
-
-               # High use pages
-               'Mostlinkedcategories'      => 'MostlinkedCategoriesPage',
-               'Mostimages'                => 'MostimagesPage',
-               'Mostlinked'                => 'MostlinkedPage',
-               'Mostlinkedtemplates'       => 'MostlinkedTemplatesPage',
-               'Mostcategories'            => 'MostcategoriesPage',
-               'Mostrevisions'             => 'MostrevisionsPage',
-
-               # Page tools
-               'ComparePages'              => 'SpecialComparePages',
-               'Export'                    => 'SpecialExport',
-               'Import'                    => 'SpecialImport',
-               'Undelete'                  => 'SpecialUndelete',
-               'Whatlinkshere'             => 'SpecialWhatlinkshere',
-               'MergeHistory'              => 'SpecialMergeHistory',
-
-               # Other
-               'Booksources'               => 'SpecialBookSources',
-
-               # Unlisted / redirects
-               'Blankpage'                 => 'SpecialBlankpage',
-               'Blockme'                   => 'SpecialBlockme',
-               'Emailuser'                 => 'SpecialEmailUser',
-               'Movepage'                  => 'MovePageForm',
-               'Mycontributions'           => 'SpecialMycontributions',
-               'Mypage'                    => 'SpecialMypage',
-               'Mytalk'                    => 'SpecialMytalk',
-               'Myuploads'                 => 'SpecialMyuploads',
-               'PermanentLink'             => 'SpecialPermanentLink',
-               'Revisiondelete'            => 'SpecialRevisionDelete',
-               'RevisionMove'              => 'SpecialRevisionMove',
-               'Specialpages'              => 'SpecialSpecialpages',
-               'Userlogout'                => 'SpecialUserlogout',
-       );
-
-       static public $mAliases;
-       static public $mListInitialised = false;
-
-       /**#@-*/
+       protected $mContext;
 
        /**
         * Initialise the special page list
         * This must be called before accessing SpecialPage::$mList
+        * @deprecated since 1.18
         */
        static function initList() {
-               global $wgSpecialPages;
-               global $wgDisableCounters, $wgDisableInternalSearch, $wgEmailAuthentication;
-
-               if ( self::$mListInitialised ) {
-                       return;
-               }
-               wfProfileIn( __METHOD__ );
-
-               # Better to set this now, to avoid infinite recursion in carelessly written hooks
-               self::$mListInitialised = true;
-
-               if( !$wgDisableCounters ) {
-                       self::$mList['Popularpages'] = 'PopularpagesPage';
-               }
-
-               if( !$wgDisableInternalSearch ) {
-                       self::$mList['Search'] = 'SpecialSearch';
-               }
-
-               if( $wgEmailAuthentication ) {
-                       self::$mList['Confirmemail'] = 'EmailConfirmation';
-                       self::$mList['Invalidateemail'] = 'EmailInvalidation';
-               }
-
-               # Add extension special pages
-               self::$mList = array_merge( self::$mList, $wgSpecialPages );
-
-               # Run hooks
-               # This hook can be used to remove undesired built-in special pages
-               wfRunHooks( 'SpecialPage_initList', array( &self::$mList ) );
-               wfProfileOut( __METHOD__ );
+               // Noop
        }
 
+       /**
+        * @deprecated since 1.18
+        */
        static function initAliasList() {
-               if ( !is_null( self::$mAliases ) ) {
-                       return;
-               }
-
-               global $wgContLang;
-               $aliases = $wgContLang->getSpecialPageAliases();
-               $missingPages = self::$mList;
-               self::$mAliases = array();
-               foreach ( $aliases as $realName => $aliasList ) {
-                       foreach ( $aliasList as $alias ) {
-                               self::$mAliases[$wgContLang->caseFold( $alias )] = $realName;
-                       }
-                       unset( $missingPages[$realName] );
-               }
-               foreach ( $missingPages as $name => $stuff ) {
-                       self::$mAliases[$wgContLang->caseFold( $name )] = $name;
-               }
+               // Noop
        }
 
        /**
@@ -268,19 +101,11 @@ class SpecialPage {
         *
         * @param $alias String
         * @return String or false
+        * @deprecated since 1.18 call SpecialPageFactory method directly
         */
        static function resolveAlias( $alias ) {
-               global $wgContLang;
-
-               if ( !self::$mListInitialised ) self::initList();
-               if ( is_null( self::$mAliases ) ) self::initAliasList();
-               $caseFoldedAlias = $wgContLang->caseFold( $alias );
-               $caseFoldedAlias = str_replace( ' ', '_', $caseFoldedAlias );
-               if ( isset( self::$mAliases[$caseFoldedAlias] ) ) {
-                       return self::$mAliases[$caseFoldedAlias];
-               } else {
-                       return false;
-               }
+               list( $name, /*...*/ ) = SpecialPageFactory::resolveAlias( $alias );
+               return $name;
        }
 
        /**
@@ -290,16 +115,10 @@ class SpecialPage {
         *
         * @param $alias String
         * @return Array
+        * @deprecated since 1.18 call SpecialPageFactory method directly
         */
        static function resolveAliasWithSubpage( $alias ) {
-               $bits = explode( '/', $alias, 2 );
-               $name = self::resolveAlias( $bits[0] );
-               if( !isset( $bits[1] ) ) { // bug 2087
-                       $par = null;
-               } else {
-                       $par = $bits[1];
-               }
-               return array( $name, $par );
+               return SpecialPageFactory::resolveAlias( $alias );
        }
 
        /**
@@ -308,14 +127,11 @@ class SpecialPage {
         * an associative record to $wgSpecialPages. This avoids autoloading SpecialPage.
         *
         * @param $page SpecialPage
-        * Deprecated in 1.7, warnings in 1.17, might be removed in 1.20
+        * @deprecated in 1.7, warnings in 1.17, might be removed in 1.20
         */
        static function addPage( &$page ) {
                wfDeprecated( __METHOD__ );
-               if ( !self::$mListInitialised ) {
-                       self::initList();
-               }
-               self::$mList[$page->mName] = $page;
+               SpecialPageFactory::getList()->{$page->mName} = $page;
        }
 
        /**
@@ -323,46 +139,30 @@ class SpecialPage {
         *
         * @param $page Mixed: SpecialPage or string
         * @param $group String
+        * @deprecated since 1.18 call SpecialPageFactory method directly
         */
        static function setGroup( $page, $group ) {
-               global $wgSpecialPageGroups;
-               $name = is_object($page) ? $page->mName : $page;
-               $wgSpecialPageGroups[$name] = $group;
+               return SpecialPageFactory::setGroup( $page, $group );
        }
 
        /**
         * Add a page to a certain display group for Special:SpecialPages
         *
         * @param $page SpecialPage
+        * @deprecated since 1.18 call SpecialPageFactory method directly
         */
        static function getGroup( &$page ) {
-               global $wgSpecialPageGroups;
-               static $specialPageGroupsCache = array();
-               if( isset($specialPageGroupsCache[$page->mName]) ) {
-                       return $specialPageGroupsCache[$page->mName];
-               }
-               $group = wfMsg('specialpages-specialpagegroup-'.strtolower($page->mName));
-               if( $group == ''
-                || wfEmptyMsg('specialpages-specialpagegroup-'.strtolower($page->mName), $group ) ) {
-                       $group = isset($wgSpecialPageGroups[$page->mName])
-                               ? $wgSpecialPageGroups[$page->mName]
-                               : '-';
-               }
-               if( $group == '-' ) $group = 'other';
-               $specialPageGroupsCache[$page->mName] = $group;
-               return $group;
+               return SpecialPageFactory::getGroup( $page );
        }
 
        /**
         * Remove a special page from the list
         * Formerly used to disable expensive or dangerous special pages. The
         * preferred method is now to add a SpecialPage_initList hook.
+        * @deprecated since 1.18
         */
        static function removePage( $name ) {
-               if ( !self::$mListInitialised ) {
-                       self::initList();
-               }
-               unset( self::$mList[$name] );
+               unset( SpecialPageFactory::getList()->$name );
        }
 
        /**
@@ -370,24 +170,10 @@ class SpecialPage {
         *
         * @param $name String: name of a special page
         * @return Boolean: true if a special page exists with this name
+        * @deprecated since 1.18 call SpecialPageFactory method directly
         */
        static function exists( $name ) {
-               global $wgContLang;
-               if ( !self::$mListInitialised ) {
-                       self::initList();
-               }
-               if( !self::$mAliases ) {
-                       self::initAliasList();
-               }
-
-               # Remove special pages inline parameters:
-               $bits = explode( '/', $name );
-               $name = $wgContLang->caseFold($bits[0]);
-
-               return
-                       array_key_exists( $name, self::$mList )
-                       or array_key_exists( $name, self::$mAliases )
-               ;
+               return SpecialPageFactory::exists( $name );
        }
 
        /**
@@ -395,24 +181,10 @@ class SpecialPage {
         *
         * @param $name String
         * @return SpecialPage object or null if the page doesn't exist
+        * @deprecated since 1.18 call SpecialPageFactory method directly
         */
        static function getPage( $name ) {
-               if ( !self::$mListInitialised ) {
-                       self::initList();
-               }
-               if ( array_key_exists( $name, self::$mList ) ) {
-                       $rec = self::$mList[$name];
-                       if ( is_string( $rec ) ) {
-                               $className = $rec;
-                               self::$mList[$name] = new $className;
-                       } elseif ( is_array( $rec ) ) {
-                               $className = array_shift( $rec );
-                               self::$mList[$name] = MWFunction::newObj( $className, $rec );
-                       }
-                       return self::$mList[$name];
-               } else {
-                       return null;
-               }
+               return SpecialPageFactory::getPage( $name );
        }
 
        /**
@@ -420,14 +192,10 @@ class SpecialPage {
         * is no such special page.
         *
         * @return SpecialPage object or null if the page doesn't exist
+        * @deprecated since 1.18 call SpecialPageFactory method directly
         */
        static function getPageByAlias( $alias ) {
-               $realName = self::resolveAlias( $alias );
-               if ( $realName ) {
-                       return self::getPage( $realName );
-               } else {
-                       return null;
-               }
+               return SpecialPageFactory::getPage( $alias );
        }
 
        /**
@@ -435,46 +203,20 @@ class SpecialPage {
         * for the current user, and everyone.
         *
         * @return Associative array mapping page's name to its SpecialPage object
+        * @deprecated since 1.18 call SpecialPageFactory method directly
         */
        static function getUsablePages() {
-               global $wgUser;
-               if ( !self::$mListInitialised ) {
-                       self::initList();
-               }
-               $pages = array();
-
-               foreach ( self::$mList as $name => $rec ) {
-                       $page = self::getPage( $name );
-                       if ( $page->isListed()
-                               && (
-                                       !$page->isRestricted()
-                                       || $page->userCanExecute( $wgUser )
-                               )
-                       ) {
-                               $pages[$name] = $page;
-                       }
-               }
-               return $pages;
+               return SpecialPageFactory::getUsablePages();
        }
 
        /**
         * Return categorised listable special pages for all users
         *
         * @return Associative array mapping page's name to its SpecialPage object
+        * @deprecated since 1.18 call SpecialPageFactory method directly
         */
        static function getRegularPages() {
-               if ( !self::$mListInitialised ) {
-                       self::initList();
-               }
-               $pages = array();
-
-               foreach ( self::$mList as $name => $rec ) {
-                       $page = self::getPage( $name );
-                       if ( $page->isListed() && !$page->isRestricted() ) {
-                               $pages[$name] = $page;
-                       }
-               }
-               return $pages;
+               return SpecialPageFactory::getRegularPages();
        }
 
        /**
@@ -482,25 +224,10 @@ class SpecialPage {
         * for the current user, but not for everyone
         *
         * @return Associative array mapping page's name to its SpecialPage object
+        * @deprecated since 1.18 call SpecialPageFactory method directly
         */
        static function getRestrictedPages() {
-               global $wgUser;
-               if( !self::$mListInitialised ) {
-                       self::initList();
-               }
-               $pages = array();
-
-               foreach( self::$mList as $name => $rec ) {
-                       $page = self::getPage( $name );
-                       if(
-                               $page->isListed()
-                               && $page->isRestricted()
-                               && $page->userCanExecute( $wgUser )
-                       ) {
-                               $pages[$name] = $page;
-                       }
-               }
-               return $pages;
+               return SpecialPageFactory::getRestrictedPages();
        }
 
        /**
@@ -511,83 +238,13 @@ class SpecialPage {
         * Returns a title object if the page is redirected, false if there was no such special
         * page, and true if it was successful.
         *
-        * @param $title          a title object
-        * @param $including      output is being captured for use in {{special:whatever}}
+        * @param $title          Title object
+        * @param $context        RequestContext
+        * @param $including      Bool output is being captured for use in {{special:whatever}}
+        * @deprecated since 1.18 call SpecialPageFactory method directly
         */
-       static function executePath( &$title, $including = false ) {
-               global $wgOut, $wgTitle, $wgRequest;
-               wfProfileIn( __METHOD__ );
-
-               # FIXME: redirects broken due to this call
-               $bits = explode( '/', $title->getDBkey(), 2 );
-               $name = $bits[0];
-               if( !isset( $bits[1] ) ) { // bug 2087
-                       $par = null;
-               } else {
-                       $par = $bits[1];
-               }
-               $page = SpecialPage::getPageByAlias( $name );
-               # Nonexistent?
-               if ( !$page ) {
-                       if ( !$including ) {
-                               $wgOut->setArticleRelated( false );
-                               $wgOut->setRobotPolicy( 'noindex,nofollow' );
-                               $wgOut->setStatusCode( 404 );
-                               $wgOut->showErrorPage( 'nosuchspecialpage', 'nospecialpagetext' );
-                       }
-                       wfProfileOut( __METHOD__ );
-                       return false;
-               }
-
-               # Check for redirect
-               if ( !$including ) {
-                       $redirect = $page->getRedirect( $par );
-                       $query = $page->getRedirectQuery();
-                       if ( $redirect instanceof Title ) {
-                               $url = $redirect->getFullUrl( $query );
-                               $wgOut->redirect( $url );
-                               wfProfileOut( __METHOD__ );
-                               return $redirect;
-                       } elseif( $redirect === true ) {
-                               global $wgScript;
-                               $url = $wgScript . '?' . wfArrayToCGI( $query );
-                               $wgOut->redirect( $url );
-                               wfProfileOut( __METHOD__ );
-                               return $redirect;
-                       }
-               }
-
-               # Redirect to canonical alias for GET commands
-               # Not for POST, we'd lose the post data, so it's best to just distribute
-               # the request. Such POST requests are possible for old extensions that
-               # generate self-links without being aware that their default name has
-               # changed.
-               if ( !$including && $name != $page->getLocalName() && !$wgRequest->wasPosted() ) {
-                       $query = $_GET;
-                       unset( $query['title'] );
-                       $query = wfArrayToCGI( $query );
-                       $title = $page->getTitle( $par );
-                       $url = $title->getFullUrl( $query );
-                       $wgOut->redirect( $url );
-                       wfProfileOut( __METHOD__ );
-                       return $redirect;
-               }
-
-               if ( $including && !$page->includable() ) {
-                       wfProfileOut( __METHOD__ );
-                       return false;
-               } elseif ( !$including ) {
-                       $wgTitle = $page->getTitle();
-               }
-               $page->including( $including );
-
-               // Execute special page
-               $profName = 'Special:' . $page->name();
-               wfProfileIn( $profName );
-               $page->execute( $par );
-               wfProfileOut( $profName );
-               wfProfileOut( __METHOD__ );
-               return true;
+       public static function executePath( &$title, RequestContext &$context, $including = false ) {
+               return SpecialPageFactory::executePath( $title, $context, $including );
        }
 
        /**
@@ -596,22 +253,10 @@ class SpecialPage {
         * a redirect.
         *
         * @return String: HTML fragment
+        * @deprecated since 1.18 call SpecialPageFactory method directly
         */
        static function capturePath( &$title ) {
-               global $wgOut, $wgTitle;
-
-               $oldTitle = $wgTitle;
-               $oldOut = $wgOut;
-               $wgOut = new OutputPage;
-               $wgOut->setTitle( $title );
-
-               $ret = SpecialPage::executePath( $title, true );
-               if ( $ret === true ) {
-                       $ret = $wgOut->getHTML();
-               }
-               $wgTitle = $oldTitle;
-               $wgOut = $oldOut;
-               return $ret;
+               return SpecialPageFactory::capturePath( $title );
        }
 
        /**
@@ -621,33 +266,10 @@ class SpecialPage {
         * @param $subpage Mixed: boolean false, or string
         *
         * @return String
+        * @deprecated since 1.18 call SpecialPageFactory method directly
         */
        static function getLocalNameFor( $name, $subpage = false ) {
-               global $wgContLang;
-               $aliases = $wgContLang->getSpecialPageAliases();
-               if ( isset( $aliases[$name][0] ) ) {
-                       $name = $aliases[$name][0];
-               } else {
-                       // Try harder in case someone misspelled the correct casing
-                       $found = false;
-                       foreach ( $aliases as $n => $values ) {
-                               if ( strcasecmp( $name, $n ) === 0 ) {
-                                       wfWarn( "Found alias defined for $n when searching for" .
-                                               "special page aliases for $name. Case mismatch?" );
-                                       $name = $values[0];
-                                       $found = true;
-                                       break;
-                               }
-                       }
-                       if ( !$found ) {
-                               wfWarn( "Did not find alias for special page '$name'. " . 
-                                       "Perhaps no aliases are defined for it?" );
-                       }
-               }
-               if ( $subpage !== false && !is_null( $subpage ) ) {
-                       $name = "$name/$subpage";
-               }
-               return $wgContLang->ucfirst( $name );
+               return SpecialPageFactory::getLocalNameFor( $name, $subpage );
        }
 
        /**
@@ -655,8 +277,8 @@ class SpecialPage {
         *
         * @return Title object
         */
-       static function getTitleFor( $name, $subpage = false ) {
-               $name = self::getLocalNameFor( $name, $subpage );
+       public static function getTitleFor( $name, $subpage = false ) {
+               $name = SpecialPageFactory::getLocalNameFor( $name, $subpage );
                if ( $name ) {
                        return Title::makeTitle( NS_SPECIAL, $name );
                } else {
@@ -669,8 +291,8 @@ class SpecialPage {
         *
         * @return Title object or null if the page doesn't exist
         */
-       static function getSafeTitleFor( $name, $subpage = false ) {
-               $name = self::getLocalNameFor( $name, $subpage );
+       public static function getSafeTitleFor( $name, $subpage = false ) {
+               $name = SpecialPageFactory::getLocalNameFor( $name, $subpage );
                if ( $name ) {
                        return Title::makeTitleSafe( NS_SPECIAL, $name );
                } else {
@@ -682,14 +304,10 @@ class SpecialPage {
         * Get a title for a given alias
         *
         * @return Title or null if there is no such alias
+        * @deprecated since 1.18 call SpecialPageFactory method directly
         */
        static function getTitleForAlias( $alias ) {
-               $name = self::resolveAlias( $alias );
-               if ( $name ) {
-                       return self::getTitleFor( $name );
-               } else {
-                       return null;
-               }
+               return SpecialPageFactory::getTitleForAlias( $alias );
        }
 
        /**
@@ -741,13 +359,14 @@ class SpecialPage {
         *
         * @param $fName String Name of called method
         * @param $a Array Arguments to the method
-        * @deprecated Call isn't deprecated, but SpecialPage::SpecialPage() is
+        * @deprecated since 1.17, call parent::__construct()
         */
        public function __call( $fName, $a ) {
                // Sometimes $fName is SpecialPage, sometimes it's specialpage. <3 PHP
                if( strtolower( $fName ) == 'specialpage' ) {
-                       // Debug messages now, warnings in 1.19 or 1.20?
-                       wfDebug( "Deprecated SpecialPage::SpecialPage() called, use __construct();\n" );
+                       // Deprecated messages now, remove in 1.19 or 1.20?
+                       wfDeprecated( __METHOD__ );
+
                        $name = isset( $a[0] ) ? $a[0] : '';
                        $restriction = isset( $a[1] ) ? $a[1] : '';
                        $listed = isset( $a[2] ) ? $a[2] : true;
@@ -761,20 +380,11 @@ class SpecialPage {
                }
        }
 
-       /**#@+
-         * Accessor
-         *
-         * @deprecated
-         */
        function getName() { return $this->mName; }
        function getRestriction() { return $this->mRestriction; }
        function getFile() { return $this->mFile; }
        function isListed() { return $this->mListed; }
-       /**#@-*/
 
-       /**#@+
-         * Accessor and mutator
-         */
        function name( $x = null ) { return wfSetVar( $this->mName, $x ); }
        function restrictions( $x = null) {
                # Use the one below this
@@ -787,18 +397,29 @@ class SpecialPage {
        function file( $x = null) { return wfSetVar( $this->mFile, $x ); }
        function includable( $x = null ) { return wfSetVar( $this->mIncludable, $x ); }
        function including( $x = null ) { return wfSetVar( $this->mIncluding, $x ); }
-       /**#@-*/
 
        /**
         * Get the localised name of the special page
         */
        function getLocalName() {
                if ( !isset( $this->mLocalName ) ) {
-                       $this->mLocalName = self::getLocalNameFor( $this->mName );
+                       $this->mLocalName = SpecialPageFactory::getLocalNameFor( $this->mName );
                }
                return $this->mLocalName;
        }
 
+       /**
+        * Is this page expensive (for some definition of expensive)?
+        * Expensive pages are disabled or cached in miser mode.  Originally used
+        * (and still overridden) by QueryPage and subclasses, moved here so that
+        * Special:SpecialPages can safely call it for all special pages.
+        *
+        * @return Boolean
+        */
+       public function isExpensive() {
+               return false;
+       }
+
        /**
         * Can be overridden by subclasses with more complicated permissions
         * schemes.
@@ -828,32 +449,29 @@ class SpecialPage {
         * Output an error message telling the user what access level they have to have
         */
        function displayRestrictionError() {
-               global $wgOut;
-               $wgOut->permissionRequired( $this->mRestriction );
+               throw new PermissionsError( $this->mRestriction );
        }
 
        /**
         * Sets headers - this should be called from the execute() method of all derived classes!
         */
        function setHeaders() {
-               global $wgOut;
-               $wgOut->setArticleRelated( false );
-               $wgOut->setRobotPolicy( "noindex,nofollow" );
-               $wgOut->setPageTitle( $this->getDescription() );
+               $out = $this->getOutput();
+               $out->setArticleRelated( false );
+               $out->setRobotPolicy( "noindex,nofollow" );
+               $out->setPageTitle( $this->getDescription() );
        }
 
        /**
         * Default execute method
         * Checks user permissions, calls the function given in mFunction
         *
-        * This may be overridden by subclasses.
+        * This must be overridden by subclasses; it will be made abstract in a future version
         */
        function execute( $par ) {
-               global $wgUser;
-
                $this->setHeaders();
 
-               if ( $this->userCanExecute( $wgUser ) ) {
+               if ( $this->userCanExecute( $this->getUser() ) ) {
                        $func = $this->mFunction;
                        // only load file if the function does not exist
                        if(!is_callable($func) and $this->mFile) {
@@ -875,16 +493,15 @@ class SpecialPage {
         * @param $summaryMessageKey String: message key of the summary
         */
        function outputHeader( $summaryMessageKey = '' ) {
-               global $wgOut, $wgContLang;
+               global $wgContLang;
 
                if( $summaryMessageKey == '' ) {
-                       $msg = $wgContLang->lc( $this->name() ) . '-summary';
+                       $msg = $wgContLang->lc( $this->getName() ) . '-summary';
                } else {
                        $msg = $summaryMessageKey;
                }
-               $out = wfMsgNoTrans( $msg );
-               if ( ! wfEmptyMsg( $msg, $out ) and  $out !== '' and ! $this->including() ) {
-                       $wgOut->wrapWikiMsg( "<div class='mw-specialpage-summary'>\n$1\n</div>", $msg );
+               if ( !wfMessage( $msg )->isBlank() and ! $this->including() ) {
+                       $this->getOutput()->wrapWikiMsg( "<div class='mw-specialpage-summary'>\n$1\n</div>", $msg );
                }
 
        }
@@ -914,6 +531,8 @@ class SpecialPage {
 
        /**
         * Set whether this page is listed in Special:Specialpages, at run-time
+        *
+        * @return Bool
         */
        function setListed( $listed ) {
                return wfSetVar( $this->mListed, $listed );
@@ -922,6 +541,8 @@ class SpecialPage {
        /**
         * If the special page is a redirect, then get the Title object it redirects to.
         * False otherwise.
+        *
+        * @return Title|false
         */
        function getRedirect( $subpage ) {
                return false;
@@ -934,12 +555,11 @@ class SpecialPage {
         * @return String
         */
        function getRedirectQuery() {
-               global $wgRequest;
                $params = array();
 
                foreach( $this->mAllowedRedirectParams as $arg ) {
-                       if( $wgRequest->getVal( $arg, null ) !== null ){
-                               $params[$arg] = $wgRequest->getVal( $arg );
+                       if( $this->getContext()->request->getVal( $arg, null ) !== null ){
+                               $params[$arg] = $this->getContext()->request->getVal( $arg );
                        }
                }
 
@@ -951,6 +571,91 @@ class SpecialPage {
                        ? $params
                        : false;
        }
+       
+       /**
+        * Sets the context this SpecialPage is executed in
+        * 
+        * @param $context RequestContext
+        * @since 1.18
+        */
+       public function setContext( $context ) {
+               $this->mContext = $context;
+       }
+
+       /**
+        * Gets the context this SpecialPage is executed in
+        * 
+        * @return RequestContext
+        * @since 1.18
+        */
+       public function getContext() {
+               if ( $this->mContext instanceof RequestContext ) {
+                       return $this->mContext;
+               } else {
+                       wfDebug( __METHOD__ . " called and \$mContext is null. Return RequestContext::getMain(); for sanity\n" );
+                       return RequestContext::getMain();
+               }
+       }
+
+       /**
+        * Get the WebRequest being used for this instance
+        *
+        * @return WebRequest
+        * @since 1.18
+        */
+       public function getRequest() {
+               return $this->getContext()->getRequest();
+       }
+
+       /**
+        * Get the OutputPage being used for this instance
+        *
+        * @return OutputPage
+        * @since 1.18
+        */
+       public function getOutput() {
+               return $this->getContext()->getOutput();
+       }
+
+       /**
+        * Shortcut to get the skin being used for this instance
+        *
+        * @return User
+        * @since 1.18
+        */
+       public function getUser() {
+               return $this->getContext()->getUser();
+       }
+
+       /**
+        * Shortcut to get the skin being used for this instance
+        *
+        * @return Skin
+        * @since 1.18
+        */
+       public function getSkin() {
+               return $this->getContext()->getSkin();
+       }
+
+       /**
+        * Return the full title, including $par
+        *
+        * @return Title
+        * @since 1.18
+        */
+       public function getFullTitle() {
+               return $this->getContext()->getTitle();
+       }
+
+       /**
+        * Wrapper around wfMessage that sets the current context. Currently this
+        * is only the title.
+        * 
+        * @see wfMessage
+        */
+       public function msg( /* $args */ ) {
+               return call_user_func_array( 'wfMessage', func_get_args() )->title( $this->getFullTitle() );
+       }
 }
 
 /**
@@ -979,7 +684,7 @@ class IncludableSpecialPage extends SpecialPage
  * Shortcut to construct a special page alias.
  * @ingroup SpecialPage
  */
-class SpecialRedirectToSpecial extends UnlistedSpecialPage {
+abstract class SpecialRedirectToSpecial extends UnlistedSpecialPage {
        var $redirName, $redirSubpage;
 
        function __construct( $name, $redirName, $redirSubpage = false, $allowedRedirectParams = array(), $addedRedirectParams = array() ) {
@@ -999,6 +704,33 @@ class SpecialRedirectToSpecial extends UnlistedSpecialPage {
        }
 }
 
+/**
+ * ListAdmins --> ListUsers/admin
+ */
+class SpecialListAdmins extends SpecialRedirectToSpecial {
+       function __construct(){
+               parent::__construct( 'ListAdmins', 'ListUsers', 'sysop' );
+       }
+}
+
+/**
+ * ListBots --> ListUsers/admin
+ */
+class SpecialListBots extends SpecialRedirectToSpecial {
+       function __construct(){
+               parent::__construct( 'ListAdmins', 'ListUsers', 'bot' );
+       }
+}
+
+/**
+ * CreateAccount --> UserLogin/signup
+ * FIXME: this (and the rest of the login frontend) needs to die a horrible painful death
+ */
+class SpecialCreateAccount extends SpecialRedirectToSpecial {
+       function __construct(){
+               parent::__construct( 'CreateAccount', 'Userlogin', 'signup', array( 'uselang' ) );
+       }
+}
 /**
  * SpecialMypage, SpecialMytalk and SpecialMycontributions special pages
  * are used to get user independant links pointing to the user page, talk
@@ -1062,7 +794,7 @@ class SpecialMycontributions extends UnlistedSpecialPage {
 
        function getRedirect( $subpage ) {
                global $wgUser;
-               return SpecialPage::getTitleFor( 'Contributions', $wgUser->getName() );
+               return SpecialPageFactory::getTitleFor( 'Contributions', $wgUser->getName() );
        }
 }
 
@@ -1077,7 +809,7 @@ class SpecialMyuploads extends UnlistedSpecialPage {
 
        function getRedirect( $subpage ) {
                global $wgUser;
-               return SpecialPage::getTitleFor( 'Listfiles', $wgUser->getName() );
+               return SpecialPageFactory::getTitleFor( 'Listfiles', $wgUser->getName() );
        }
 }