X-Git-Url: https://git.cyclocoop.org/?a=blobdiff_plain;f=index.php;h=685b14e0cb273952be3cea9dcd51b8a2c284e9c0;hb=5f6093e89e9b3e58091e1b11f405fc5cddcbecc8;hp=1d8d63e650d93400463a4931b9aa012963c78e50;hpb=a0302856fc2e578328c16e78678539d676b9ef32;p=lhc%2Fweb%2Fwiklou.git

diff --git a/index.php b/index.php
index 1d8d63e650..685b14e0cb 100644
--- a/index.php
+++ b/index.php
@@ -1,168 +1,200 @@
 <?php
 /**
- * Main wiki script; see docs/design.txt
- * @package MediaWiki
+ * This is the main web entry point for MediaWiki.
+ *
+ * If you are reading this in your web browser, your server is probably
+ * not configured correctly to run PHP applications!
+ *
+ * See the README, INSTALL, and UPGRADE files for basic setup instructions
+ * and pointers to the online documentation.
+ *
+ * http://www.mediawiki.org/
+ *
+ * ----------
+ *
+ * Copyright (C) 2001-2011 Magnus Manske, Brion Vibber, Lee Daniel Crocker,
+ * Tim Starling, Erik Möller, Gabriel Wicke, Ævar Arnfjörð Bjarmason,
+ * Niklas Laxström, Domas Mituzas, Rob Church, Yuri Astrakhan, Aryeh Gregor,
+ * Aaron Schulz, Andrew Garrett, Raimond Spekking, Alexandre Emsenhuber
+ * Siebrand Mazeland, Chad Horohoe, Roan Kattouw and others.
+ *
+ * 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
  */
-$wgRequestTime = microtime();
 
-# getrusage() does not exist on the Window$ platform, catching this
-if ( function_exists ( 'getrusage' ) ) {
-	$wgRUstart = getrusage();
-} else {
-	$wgRUstart = array();
+// Bail on old versions of PHP.  Pretty much every other file in the codebase
+// has structures (try/catch, foo()->bar(), etc etc) which throw parse errors in PHP 4.
+// Setup.php and ObjectCache.php have structures invalid in PHP 5.0 and 5.1, respectively.
+if ( !function_exists( 'version_compare' ) || version_compare( phpversion(), '5.2.3' ) < 0 ) {
+	$phpversion = htmlspecialchars( phpversion() );
+	$errorMsg = <<<ENDL
+		<p>
+			MediaWiki requires PHP 5.2.3 or higher. You are running PHP $phpversion.
+		</p>
+		<p>
+			Please consider <a href="http://www.php.net/downloads.php">upgrading your copy of PHP</a>.
+			PHP versions less than 5.3.0 are no longer supported by the PHP Group and will not receive
+			security or bugfix updates.
+		</p>
+		<p>
+			If for some reason you are unable to upgrade your PHP version, you will need to
+			<a href="http://www.mediawiki.org/wiki/Download">download</a> an older version
+			of MediaWiki from our website.  See our
+			<a href="http://www.mediawiki.org/wiki/Compatibility#PHP">compatibility page</a>
+			for details of which versions are compatible with prior versions of PHP.
+		</p>
+ENDL;
+	wfDie( $errorMsg );
 }
 
-unset( $IP );
-@ini_set( 'allow_url_fopen', 0 ); # For security...
+# 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 or $wgArticle
+require ( dirname( __FILE__ ) . '/includes/WebStart.php' );
+
+wfProfileIn( 'index.php' );
+wfProfileIn( 'index.php-setup' );
+
+$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: $lag seconds lagged\n";
+		}
+		exit;
+	}
+}
+
+# Initialize MediaWiki base class
+$context = RequestContext::getMain();
+$mediaWiki = new MediaWiki( $context );
+
+# Set title from request parameters
+$wgTitle = $mediaWiki->getTitle();
+$action = $wgRequest->getVal( 'action', 'view' );
 
-if ( isset( $_REQUEST['GLOBALS'] ) ) {
-	die( '<a href="http://www.hardened-php.net/index.76.html">$GLOBALS overwrite vulnerability</a>');
+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();
+	exit;
 }
 
-# Valid web server entry point, enable includes.
-# Please don't move this line to includes/Defines.php. This line essentially defines
-# a valid entry point. If you put it in includes/Defines.php, then any script that includes
-# it becomes an entry point, thereby defeating its purpose.
-define( 'MEDIAWIKI', true );
-require_once( './includes/Defines.php' );
+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
+			$wgArticle = MediaWiki::articleFromTitle( $wgTitle, $context );
+			$wgArticle->viewUpdates();
+			# Tell OutputPage that output is taken care of
+			$context->output->disable();
+			wfProfileOut( 'index.php-filecache' );
+			$mediaWiki->finalCleanup();
+			wfProfileOut( 'index.php' );
+			$mediaWiki->restInPeace();
+			exit;
+		}
+	}
+	wfProfileOut( 'index.php-filecache' );
+}
+
+$mediaWiki->performRequestForTitle( $wgArticle );
+$mediaWiki->finalCleanup();
+
+wfProfileOut( 'index.php' );
 
-if( !file_exists( 'LocalSettings.php' ) ) {
-	$IP = "." ;
-	require_once( 'includes/DefaultSettings.php' ); # used for printing the version
-?>
+$mediaWiki->restInPeace();
+
+/**
+ * Display something vaguely comprehensible in the event of a totally unrecoverable error.
+ * Does not assume access to *anything*; no globals, no autloader, no database, no localisation.
+ * Safe for PHP4 (and putting this here means that WebStart.php and GlobalSettings.php
+ * no longer need to be).
+ *
+ * Calling this function kills execution immediately.
+ *
+ * @param $errorMsg String fully-escaped HTML
+ */
+function wfDie( $errorMsg ){
+	// Use the version set in DefaultSettings if possible, but don't rely on it
+	global $wgVersion, $wgLogo;
+	$version = isset( $wgVersion ) && $wgVersion
+		? htmlspecialchars( $wgVersion )
+		: '';
+	$logo = isset( $wgLogo ) && $wgLogo
+		? $wgLogo
+		: 'http://upload.wikimedia.org/wikipedia/commons/1/1c/MediaWiki_logo.png';
+
+	header( $_SERVER['SERVER_PROTOCOL'] . ' 500 MediaWiki configuration Error', true, 500 );
+	header( 'Content-type: text/html; charset=UTF-8' );
+	// Don't cache error pages!  They cause no end of trouble...
+	header( 'Cache-control: none' );
+	header( 'Pragma: nocache' );
+
+	?>
 <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
-<html xmlns='http://www.w3.org/1999/xhtml' xml:lang='en' lang='en'>
+<html xmlns='http://www.w3.org/1999/xhtml' lang='en'>
 	<head>
-		<title>MediaWiki <?php echo $wgVersion ?></title>
+		<title>MediaWiki <?php echo $version; ?></title>
 		<meta http-equiv='Content-Type' content='text/html; charset=utf-8' />
-		<style type='text/css' media='screen, projection'>
-			html, body {
+		<style type='text/css' media='screen'>
+			body {
 				color: #000;
 				background-color: #fff;
 				font-family: sans-serif;
+				padding: 2em;
 				text-align: center;
 			}
-
+			p, img, h1 {
+				text-align: left;
+				margin: 0.5em 0;
+			}
 			h1 {
-				font-size: 150%;
+				font-size: 120%;
 			}
 		</style>
 	</head>
 	<body>
-		<img src='skins/common/images/mediawiki.png' alt='The MediaWiki logo' />
-
-		<h1>MediaWiki <?php echo $wgVersion ?></h1>
-		<div class='error'>
-		<?php
-		if ( file_exists( 'config/LocalSettings.php' ) ) {
-			echo( "To complete the installation, move <tt>config/LocalSettings.php</tt> to the parent directory." );
-		} else {
-			echo( "Please <a href='config/index.php' title='setup'>setup the wiki</a> first." );
-		}
-		?>
-
-		</div>
+		<img src="<?php echo $logo; ?>" alt='The MediaWiki logo' />
+		<h1>MediaWiki <?php echo $version; ?> internal error</h1>
+		<div class='error'> <?php echo $errorMsg; ?> </div>
 	</body>
 </html>
-<?php
-	die();
-}
-
-require_once( './LocalSettings.php' );
-require_once( 'includes/Setup.php' );
-
-wfProfileIn( 'main-misc-setup' );
-OutputPage::setEncodings(); # Not really used yet
-
-# Query string fields
-$action = $wgRequest->getVal( 'action', 'view' );
-$title = $wgRequest->getVal( 'title' );
-
-if ($wgRequest->getVal( 'printable' ) == 'yes') {
-	$wgOut->setPrintable();
-}
-
-if ( '' == $title && 'delete' != $action ) {
-	$wgTitle = Title::newFromText( wfMsgForContent( 'mainpage' ) );
-} elseif ( $curid = $wgRequest->getInt( 'curid' ) ) {
-	# URLs like this are generated by RC, because rc_title isn't always accurate
-	$wgTitle = Title::newFromID( $curid );
-} else {
-	$wgTitle = Title::newFromURL( $title );
-	/* check variant links so that interwiki links don't have to worry about
-	   the possible different language variants
-	*/
-	if( count($wgContLang->getVariants()) > 1 && !is_null($wgTitle) && $wgTitle->getArticleID() == 0 )
-		$wgContLang->findVariantLink( $title, $wgTitle );
-
-}
-wfProfileOut( 'main-misc-setup' );
-
-# Debug statement for user levels
-// print_r($wgUser);
-
-$search = $wgRequest->getText( 'search' );
-if( !is_null( $search ) && $search !== '' ) {
-	// Compatibility with old search URLs which didn't use Special:Search
-	// Do this above the read whitelist check for security...
-	$wgTitle = Title::makeTitle( NS_SPECIAL, 'Search' );
+	<?php
+	die( 1 );
 }
-
-# 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())
-if ( !is_null( $wgTitle ) && !$wgTitle->userCanRead() ) {
-	$wgOut->loginToUse();
-	$wgOut->output();
-	exit;
-}
-
-wfProfileIn( 'main-action' );
-
-# Initialize MediaWiki base class
-require_once( "includes/Wiki.php" );
-$mediaWiki = new MediaWiki();
-
-$mediaWiki->setVal( "Server", $wgServer );
-$mediaWiki->setVal( "DisableInternalSearch", $wgDisableInternalSearch );
-$mediaWiki->setVal( "Search", $search );
-$mediaWiki->setVal( "action", $action );
-$mediaWiki->setVal( "SquidMaxage", $wgSquidMaxage );
-$mediaWiki->setVal( "EnableDublinCoreRdf", $wgEnableDublinCoreRdf );
-$mediaWiki->setVal( "EnableCreativeCommonsRdf", $wgEnableCreativeCommonsRdf );
-$mediaWiki->setVal( "CommandLineMode", $wgCommandLineMode );
-$mediaWiki->setVal( "UseExternalEditor", $wgUseExternalEditor );
-$mediaWiki->setVal( "DisabledActions", $wgDisabledActions );
-
-$wgArticle = $mediaWiki->initialize ( $wgTitle, $wgOut, $wgUser, $wgRequest );
-
-wfProfileOut( 'main-action' );
-
-# Deferred updates aren't really deferred anymore. It's important to report errors to the
-# user, and that means doing this before OutputPage::output(). Note that for page saves,
-# the client will wait until the script exits anyway before following the redirect.
-wfProfileIn( 'main-updates' );
-foreach( $wgDeferredUpdateList as $up ) {
-	$up->doUpdate();
-}
-wfProfileOut( 'main-updates' );
-
-wfProfileIn( 'main-cleanup' );
-$wgLoadBalancer->saveMasterPos();
-
-# Now commit any transactions, so that unreported errors after output() don't roll back the whole thing
-$wgLoadBalancer->commitAll();
-
-$wgOut->output();
-
-foreach( $wgPostCommitUpdateList as $up ) {
-	$up->doUpdate();
-}
-
-wfProfileOut( 'main-cleanup' );
-
-wfProfileClose();
-logProfilingData();
-$wgLoadBalancer->closeAll();
-wfDebug( "Request ended normally\n" );
-?>