-# Initialise common code. This gives us access to GlobalFunctions, the AutoLoader, and
-# the globals $wgRequest, $wgOut, $wgUser, $wgLang and $wgContLang, amongst others; it
-# does *not* load $wgTitle
-require ( dirname( __FILE__ ) . '/includes/WebStart.php' );
-
-wfIndexMain();
-
-function wfIndexMain() {
- global $wgRequest, $wgShowHostnames, $mediaWiki, $wgTitle, $wgUseAjax, $wgUseFileCache;
-
- wfProfileIn( 'index.php' );
- wfProfileIn( 'index.php-setup' );
-
- $maxLag = $wgRequest->getVal( 'maxlag' );
- if ( !is_null( $maxLag ) ) {
- $lb = wfGetLB(); // foo()->bar() is not supported in PHP4
- list( $host, $lag ) = $lb->getMaxLag();
- if ( $lag > $maxLag ) {
- 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";
- }
- return;
- }
- }
-
- # Initialize MediaWiki base class
- $context = RequestContext::getMain();
- $mediaWiki = new MediaWiki( $context );
-
- # Set title from request parameters
- $wgTitle = $mediaWiki->getTitle();
- $action = $wgRequest->getVal( 'action', 'view' );
-
- wfProfileOut( 'index.php-setup' );
-
- # Send Ajax requests to the Ajax dispatcher.
- if ( $wgUseAjax && $action == 'ajax' ) {
- $dispatcher = new AjaxDispatcher();
- $dispatcher->performAction();
- wfProfileOut( 'index.php' );
- $mediaWiki->restInPeace();
- return;
- }
-
- if ( $wgUseFileCache && $wgTitle !== null ) {
- wfProfileIn( 'index.php-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() ) {
- /* Try low-level file cache hit */
- $cache = new HTMLFileCache( $wgTitle, $action );
- if ( $cache->isFileCacheGood( /* Assume up to date */ ) ) {
- /* Check incoming headers to see if client has this cached */
- if ( !$context->output->checkLastModified( $cache->fileCacheTime() ) ) {
- $cache->loadFromFileCache();
- }
- # Do any stats increment/watchlist stuff
- $article = Article::newFromTitle( $wgTitle, $context );
- $article->viewUpdates();
- # Tell OutputPage that output is taken care of
- $context->output->disable();
- wfProfileOut( 'index.php-filecache' );
- $mediaWiki->finalCleanup();
- wfProfileOut( 'index.php' );
- $mediaWiki->restInPeace();
- return;
- }
- }
- wfProfileOut( 'index.php-filecache' );
- }
-
- $mediaWiki->performRequestForTitle( $article );
-
- /**
- * $wgArticle is deprecated, do not use it. This will possibly be removed
- * entirely in 1.20 or 1.21
- * @deprecated since 1.19
- */
- global $wgArticle;
- $wgArticle = $article;
-
- $mediaWiki->finalCleanup();
-
- wfProfileOut( 'index.php' );
-
- $mediaWiki->restInPeace();