Localisation updates for core and extension messages from translatewiki.net
[lhc/web/wiklou.git] / includes / Wiki.php
index 3a18061..4c2e92a 100644 (file)
@@ -1,6 +1,27 @@
 <?php
 /**
- * MediaWiki is the to-be base class for this whole project
+ * Helper class for the index.php entry point.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write to the Free Software Foundation, Inc.,
+ * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+ * http://www.gnu.org/copyleft/gpl.html
+ *
+ * @file
+ */
+
+/**
+ * The MediaWiki class is the helper class for the index.php entry point.
  *
  * @internal documentation reviewed 15 Mar 2010
  */
@@ -8,31 +29,33 @@ class MediaWiki {
 
        /**
         * TODO: fold $output, etc, into this
-        * @var RequestContext
+        * @var IContextSource
         */
        private $context;
 
        public function request( WebRequest $x = null ){
+               $old = $this->context->getRequest();
                $this->context->setRequest( $x );
-               return $this->context->getRequest();
+               return $old;
        }
 
        public function output( OutputPage $x = null ){
+               $old = $this->context->getOutput();
                $this->context->setOutput( $x );
-               return $this->context->getOutput();
+               return $old;
        }
 
-       public function __construct( RequestContext $context = null ) {
+       public function __construct( IContextSource $context = null ) {
                if ( !$context ) {
                        $context = RequestContext::getMain();
                }
-               
+
                $this->context = $context;
                $this->context->setTitle( $this->parseTitle() );
        }
 
        /**
-        * Parse $request to get the Title object
+        * Parse the request to get the Title object
         *
         * @return Title object to be $wgTitle
         */
@@ -55,14 +78,21 @@ class MediaWiki {
                        $ret = Title::newMainPage();
                } else {
                        $ret = Title::newFromURL( $title );
-                       // check variant links so that interwiki links don't have to worry
+                       // Alias NS_MEDIA page URLs to NS_FILE...we only use NS_MEDIA
+                       // in wikitext links to tell Parser to make a direct file link
+                       if ( !is_null( $ret ) && $ret->getNamespace() == NS_MEDIA ) {
+                               $ret = Title::makeTitle( NS_FILE, $ret->getDBkey() );
+                       }
+                       // Check variant links so that interwiki links don't have to worry
                        // about the possible different language variants
-                       if ( count( $wgContLang->getVariants() ) > 1 && !is_null( $ret ) && $ret->getArticleID() == 0 ){
+                       if ( count( $wgContLang->getVariants() ) > 1
+                               && !is_null( $ret ) && $ret->getArticleID() == 0 )
+                       {
                                $wgContLang->findVariantLink( $title, $ret );
                        }
                }
                // For non-special titles, check for implicit titles
-               if ( is_null( $ret ) || $ret->getNamespace() != NS_SPECIAL ) {
+               if ( is_null( $ret ) || !$ret->isSpecialPage() ) {
                        // We can have urls with just ?diff=,?oldid= or even just ?diff=
                        $oldid = $request->getInt( 'oldid' );
                        $oldid = $oldid ? $oldid : $request->getInt( 'diff' );
@@ -73,9 +103,10 @@ class MediaWiki {
                        }
                }
 
-               if( $ret === null || ( $ret->getDBkey() == '' && $ret->getInterwiki() == '' ) ){
-                       $ret = new BadTitle;
+               if ( $ret === null || ( $ret->getDBkey() == '' && $ret->getInterwiki() == '' ) ) {
+                       $ret = SpecialPage::getTitleFor( 'Badtitle' );
                }
+
                return $ret;
        }
 
@@ -99,9 +130,9 @@ class MediaWiki {
         * - special pages
         * - normal pages
         *
-        * @return Article object
+        * @return void
         */
-       public function performRequest() {
+       private function performRequest() {
                global $wgServer, $wgUsePathInfo;
 
                wfProfileIn( __METHOD__ );
@@ -115,25 +146,31 @@ class MediaWiki {
                        $output->setPrintable();
                }
 
-               wfRunHooks( 'BeforeInitialize', array(
-                       &$title,
-                       null,
-                       &$output,
-                       &$user,
-                       $request,
-                       $this
-               ) );
+               wfRunHooks( 'BeforeInitialize',
+                       array( &$title, null, &$output, &$user, $request, $this ) );
 
                // Invalid titles. Bug 21776: The interwikis must redirect even if the page name is empty.
-               if ( $title instanceof BadTitle ) {
+               if ( is_null( $title ) || ( $title->getDBkey() == '' && $title->getInterwiki() == '' ) ||
+                       $title->isSpecial( 'Badtitle' ) )
+               {
+                       $this->context->setTitle( SpecialPage::getTitleFor( 'Badtitle' ) );
+                       wfProfileOut( __METHOD__ );
                        throw new ErrorPageError( 'badtitle', 'badtitletext' );
-               // If the user is not logged in, the Namespace:title of the article must be in
-               // the Read array in order for the user to see it. (We have to check here to
-               // catch special pages etc. We check again in Article::view())
-               } elseif ( !$title->userCanRead() ) {
-                       $output->loginToUse();
+               }
+
+               // Check user's permissions to read this page.
+               // We have to check here to catch special pages etc.
+               // We will check again in Article::view().
+               $permErrors = $title->getUserPermissionsErrors( 'read', $user );
+               if ( count( $permErrors ) ) {
+                       wfProfileOut( __METHOD__ );
+                       throw new PermissionsError( 'read', $permErrors );
+               }
+
+               $pageView = false; // was an article or special page viewed?
+
                // Interwiki redirects
-               } elseif ( $title->getInterwiki() != '' ) {
+               if ( $title->getInterwiki() != '' ) {
                        $rdfrom = $request->getVal( 'rdfrom' );
                        if ( $rdfrom ) {
                                $url = $title->getFullURL( 'rdfrom=' . urlencode( $rdfrom ) );
@@ -143,26 +180,30 @@ class MediaWiki {
                                $url = $title->getFullURL( $query );
                        }
                        // Check for a redirect loop
-                       if ( !preg_match( '/^' . preg_quote( $wgServer, '/' ) . '/', $url ) && $title->isLocal() ) {
+                       if ( !preg_match( '/^' . preg_quote( $wgServer, '/' ) . '/', $url )
+                               && $title->isLocal() )
+                       {
                                // 301 so google et al report the target as the actual url.
                                $output->redirect( $url, 301 );
                        } else {
-                               $this->context->setTitle( new BadTitle );
+                               $this->context->setTitle( SpecialPage::getTitleFor( 'Badtitle' ) );
                                wfProfileOut( __METHOD__ );
                                throw new ErrorPageError( 'badtitle', 'badtitletext' );
                        }
                // Redirect loops, no title in URL, $wgUsePathInfo URLs, and URLs with a variant
                } elseif ( $request->getVal( 'action', 'view' ) == 'view' && !$request->wasPosted()
-                       && ( $request->getVal( 'title' ) === null || $title->getPrefixedDBKey() != $request->getVal( 'title' ) )
-                       && !count( array_diff( array_keys( $request->getValues() ), array( 'action', 'title' ) ) ) )
+                       && ( $request->getVal( 'title' ) === null ||
+                               $title->getPrefixedDBKey() != $request->getVal( 'title' ) )
+                       && !count( $request->getValueNames( array( 'action', 'title' ) ) )
+                       && wfRunHooks( 'TestCanonicalRedirect', array( $request, $title, $output ) ) )
                {
-                       if ( $title->getNamespace() == NS_SPECIAL ) {
+                       if ( $title->isSpecialPage() ) {
                                list( $name, $subpage ) = SpecialPageFactory::resolveAlias( $title->getDBkey() );
                                if ( $name ) {
                                        $title = SpecialPage::getTitleFor( $name, $subpage );
                                }
                        }
-                       $targetUrl = $title->getFullURL();
+                       $targetUrl = wfExpandUrl( $title->getFullURL(), PROTO_CURRENT );
                        // Redirect to canonical url, make it a 301 to allow caching
                        if ( $targetUrl == $request->getFullRequestURL() ) {
                                $message = "Redirect loop detected!\n\n" .
@@ -184,31 +225,31 @@ class MediaWiki {
                                                "\$wgArticlePath setting and/or toggle \$wgUsePathInfo " .
                                                "to true.";
                                }
-                               wfHttpError( 500, "Internal error", $message );
+                               throw new HttpError( 500, $message );
                        } else {
                                $output->setSquidMaxage( 1200 );
                                $output->redirect( $targetUrl, '301' );
                        }
                // Special pages
                } elseif ( NS_SPECIAL == $title->getNamespace() ) {
-                       // actions that need to be made when we have a special pages
+                       $pageView = true;
+                       // Actions that need to be made when we have a special pages
                        SpecialPageFactory::executePath( $title, $this->context );
                } else {
                        // ...otherwise treat it as an article view. The article
                        // may be a redirect to another article or URL.
                        $article = $this->initializeArticle();
                        if ( is_object( $article ) ) {
+                               $pageView = true;
                                /**
                                 * $wgArticle is deprecated, do not use it. This will possibly be removed
                                 * entirely in 1.20 or 1.21
-                                * @deprecated since 1.19
+                                * @deprecated since 1.18
                                 */
                                global $wgArticle;
                                $wgArticle = $article;
-                               
+
                                $this->performAction( $article );
-                               wfProfileOut( __METHOD__ );
-                               return $article;
                        } elseif ( is_string( $article ) ) {
                                $output->redirect( $article );
                        } else {
@@ -216,23 +257,29 @@ class MediaWiki {
                                throw new MWException( "Shouldn't happen: MediaWiki::initializeArticle() returned neither an object nor a URL" );
                        }
                }
+
+               if ( $pageView ) {
+                       // Promote user to any groups they meet the criteria for
+                       $user->addAutopromoteOnceGroups( 'onView' );
+               }
+
                wfProfileOut( __METHOD__ );
        }
 
        /**
         * Create an Article object of the appropriate class for the given page.
         *
-        * @deprecated in 1.19; use Article::newFromTitle() instead
+        * @deprecated in 1.18; use Article::newFromTitle() instead
         * @param $title Title
-        * @param $context RequestContext
+        * @param $context IContextSource
         * @return Article object
         */
-       public static function articleFromTitle( $title, RequestContext $context ) {
+       public static function articleFromTitle( $title, IContextSource $context ) {
                return Article::newFromTitle( $title, $context );
        }
 
        /**
-        * Returns the action that will be executed, not necesserly the one passed
+        * Returns the action that will be executed, not necessarily the one passed
         * passed through the "action" parameter. Actions disabled in
         * $wgDisabledActions will be replaced by "nosuchaction"
         *
@@ -328,6 +375,7 @@ class MediaWiki {
                                $this->context->setTitle( $article->getTitle() );
                        }
                }
+
                wfProfileOut( __METHOD__ );
                return $article;
        }
@@ -344,7 +392,7 @@ class MediaWiki {
                // Output everything!
                $this->context->getOutput()->output();
                // Do any deferred jobs
-               wfDoUpdates( 'commit' );
+               DeferredUpdates::doUpdates( 'commit' );
                $this->doJobs();
                wfProfileOut( __METHOD__ );
        }
@@ -401,8 +449,8 @@ class MediaWiki {
         *
         * @param $article Article
         */
-       private function performAction( $article ) {
-               global $wgSquidMaxage, $wgUseExternalEditor;
+       private function performAction( Page $article ) {
+               global $wgSquidMaxage;
 
                wfProfileIn( __METHOD__ );
 
@@ -411,9 +459,8 @@ class MediaWiki {
                $title = $this->context->getTitle();
                $user = $this->context->getUser();
 
-               if ( !wfRunHooks( 'MediaWikiPerformAction', array(
-                               $output, $article, $title,
-                               $user, $request, $this ) ) )
+               if ( !wfRunHooks( 'MediaWikiPerformAction',
+                       array( $output, $article, $title, $user, $request, $this ) ) )
                {
                        wfProfileOut( __METHOD__ );
                        return;
@@ -422,7 +469,7 @@ class MediaWiki {
                $act = $this->getAction();
 
                $action = Action::factory( $act, $article );
-               if( $action instanceof Action ){
+               if ( $action instanceof Action ) {
                        $action->show();
                        wfProfileOut( __METHOD__ );
                        return;
@@ -433,15 +480,7 @@ class MediaWiki {
                                $output->setSquidMaxage( $wgSquidMaxage );
                                $article->view();
                                break;
-                       case 'raw': // includes JS/CSS
-                               wfProfileIn( __METHOD__ . '-raw' );
-                               $raw = new RawPage( $article );
-                               $raw->view();
-                               wfProfileOut( __METHOD__ . '-raw' );
-                               break;
                        case 'delete':
-                       case 'revert':
-                       case 'rollback':
                        case 'protect':
                        case 'unprotect':
                        case 'render':
@@ -455,28 +494,18 @@ class MediaWiki {
                                // Continue...
                        case 'edit':
                                if ( wfRunHooks( 'CustomEditor', array( $article, $user ) ) ) {
-                                       $internal = $request->getVal( 'internaledit' );
-                                       $external = $request->getVal( 'externaledit' );
-                                       $section = $request->getVal( 'section' );
-                                       $oldid = $request->getVal( 'oldid' );
-                                       if ( !$wgUseExternalEditor || $act == 'submit' || $internal ||
-                                          $section || $oldid || ( !$user->getOption( 'externaleditor' ) && !$external ) ) {
+                                       if ( ExternalEdit::useExternalEngine( $this->context, 'edit' )
+                                               && $act == 'edit' && !$request->getVal( 'section' )
+                                               && !$request->getVal( 'oldid' ) )
+                                       {
+                                               $extedit = new ExternalEdit( $this->context );
+                                               $extedit->execute();
+                                       } else {
                                                $editor = new EditPage( $article );
-                                               $editor->submit();
-                                       } elseif ( $wgUseExternalEditor && ( $external || $user->getOption( 'externaleditor' ) ) ) {
-                                               $mode = $request->getVal( 'mode' );
-                                               $extedit = new ExternalEdit( $article, $mode );
-                                               $extedit->edit();
+                                               $editor->edit();
                                        }
                                }
                                break;
-                       case 'history':
-                               if ( $request->getFullRequestURL() == $title->getInternalURL( 'action=history' ) ) {
-                                       $output->setSquidMaxage( $wgSquidMaxage );
-                               }
-                               $history = new HistoryPage( $article );
-                               $history->history();
-                               break;
                        default:
                                if ( wfRunHooks( 'UnknownAction', array( $act, $article ) ) ) {
                                        $output->showErrorPage( 'nosuchaction', 'nosuchactiontext' );
@@ -487,51 +516,43 @@ class MediaWiki {
 
        /**
         * Run the current MediaWiki instance
-        * index.php just calls this 
-        */     
-       function run() {
+        * index.php just calls this
+        */
+       public function run() {
                try {
-                       $this->checkMaxLag( true );
+                       $this->checkMaxLag();
                        $this->main();
                        $this->restInPeace();
                } catch ( Exception $e ) {
                        MWExceptionHandler::handle( $e );
                }
-       } 
-       
+       }
+
        /**
-        * Checks if the request should abort due to a lagged server, 
+        * Checks if the request should abort due to a lagged server,
         * for given maxlag parameter.
-        * 
-        * @param boolean $abort True if this class should abort the 
-        * script execution. False to return the result as a boolean.
-        * @return boolean True if we passed the check, false if we surpass the maxlag
         */
-       function checkMaxLag( $abort ) {
+       private function checkMaxLag() {
                global $wgShowHostnames;
-               
+
                wfProfileIn( __METHOD__ );
                $maxLag = $this->context->getRequest()->getVal( 'maxlag' );
                if ( !is_null( $maxLag ) ) {
-                       $lb = wfGetLB(); // foo()->bar() is not supported in PHP4
-                       list( $host, $lag ) = $lb->getMaxLag();
+                       list( $host, $lag ) = wfGetLB()->getMaxLag();
                        if ( $lag > $maxLag ) {
-                               if ( $abort ) {
-                                       header( 'HTTP/1.1 503 Service Unavailable' );
-                                       header( 'Retry-After: ' . max( intval( $maxLag ), 5 ) );
-                                       header( 'X-Database-Lag: ' . intval( $lag ) );
-                                       header( 'Content-Type: text/plain' );
-                                       if( $wgShowHostnames ) {
-                                               echo "Waiting for $host: $lag seconds lagged\n";
-                                       } else {
-                                               echo "Waiting for a database server: $lag seconds lagged\n";
-                                       }
+                               $resp = $this->context->getRequest()->response();
+                               $resp->header( 'HTTP/1.1 503 Service Unavailable' );
+                               $resp->header( 'Retry-After: ' . max( intval( $maxLag ), 5 ) );
+                               $resp->header( 'X-Database-Lag: ' . intval( $lag ) );
+                               $resp->header( 'Content-Type: text/plain' );
+                               if( $wgShowHostnames ) {
+                                       echo "Waiting for $host: $lag seconds lagged\n";
+                               } else {
+                                       echo "Waiting for a database server: $lag seconds lagged\n";
                                }
-                               
+
                                wfProfileOut( __METHOD__ );
 
-                               if ( !$abort ) 
-                                       return false;
                                exit;
                        }
                }
@@ -539,15 +560,16 @@ class MediaWiki {
                return true;
        }
 
-       function main() {
+       private function main() {
                global $wgUseFileCache, $wgTitle, $wgUseAjax;
-               
+
                wfProfileIn( __METHOD__ );
-               
+
                # Set title from request parameters
                $wgTitle = $this->getTitle();
                $action = $this->getAction();
-               
+               $user = $this->context->getUser();
+
                # Send Ajax requests to the Ajax dispatcher.
                if ( $wgUseAjax && $action == 'ajax' ) {
                        $dispatcher = new AjaxDispatcher();
@@ -555,22 +577,21 @@ class MediaWiki {
                        wfProfileOut( __METHOD__ );
                        return;
                }
-               
-               if ( $wgUseFileCache && $wgTitle !== null ) {
+
+               if ( $wgUseFileCache && $wgTitle->getNamespace() >= 0 ) {
                        wfProfileIn( 'main-try-filecache' );
-                       // Raw pages should handle cache control on their own,
-                       // even when using file cache. This reduces hits from clients.
-                       if ( $action != 'raw' && HTMLFileCache::useFileCache() ) {
+                       if ( HTMLFileCache::useFileCache( $this->context ) ) {
                                /* Try low-level file cache hit */
-                               $cache = new HTMLFileCache( $wgTitle, $action );
-                               if ( $cache->isFileCacheGood( /* Assume up to date */ ) ) {
+                               $cache = HTMLFileCache::newFromTitle( $wgTitle, $action );
+                               if ( $cache->isCacheGood( /* Assume up to date */ ) ) {
                                        /* Check incoming headers to see if client has this cached */
-                                       if ( !$this->context->getOutput()->checkLastModified( $cache->fileCacheTime() ) ) {
-                                               $cache->loadFromFileCache();
+                                       $timestamp = $cache->cacheTimestamp();
+                                       if ( !$this->context->getOutput()->checkLastModified( $timestamp ) ) {
+                                               $cache->loadFromFileCache( $this->context );
                                        }
                                        # Do any stats increment/watchlist stuff
-                                       $article = Article::newFromTitle( $wgTitle, $this->context );
-                                       $article->viewUpdates();
+                                       $article = WikiPage::factory( $wgTitle );
+                                       $article->doViewUpdates( $user );
                                        # Tell OutputPage that output is taken care of
                                        $this->context->getOutput()->disable();
                                        wfProfileOut( 'main-try-filecache' );
@@ -580,10 +601,10 @@ class MediaWiki {
                        }
                        wfProfileOut( 'main-try-filecache' );
                }
-               
+
                $this->performRequest();
                $this->finalCleanup();
-               
+
                wfProfileOut( __METHOD__ );
        }
 }