ac549401d4
* DB_WRITE now called DB_MASTER, DB_READ now called DB_SLAVE * Converted to use SQL wrapper functions instead of direct SQL in various places * Experimental method for preserving the chronological order of events when slave servers are used. Untested. * Fixes to the new post-parse existence test feature * Some.. other stuff
260 lines
7.5 KiB
PHP
260 lines
7.5 KiB
PHP
<?php
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# The main wiki script and things like database
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# conversion and maintenance scripts all share a
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# common setup of including lots of classes and
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# setting up a few globals.
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#
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global $wgProfiling, $wgProfileSampleRate, $wgIP, $wgUseSquid;
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if( !isset( $wgProfiling ) )
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$wgProfiling = false;
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if ( $wgProfiling and (0 == rand() % $wgProfileSampleRate ) ) {
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require_once( 'Profiling.php' );
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} else {
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function wfProfileIn( $fn = '' ) {}
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function wfProfileOut( $fn = '' ) {}
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function wfGetProfilingOutput( $s, $e ) {}
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function wfProfileClose() {}
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}
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/* collect the originating ips */
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if( $wgUseSquid && isset( $_SERVER['HTTP_X_FORWARDED_FOR'] ) ) {
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# If the web server is behind a reverse proxy, we need to find
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# out where our requests are really coming from.
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$hopips = array_map( 'trim', explode( ',', $_SERVER['HTTP_X_FORWARDED_FOR'] ) );
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while(in_array(trim(end($hopips)), $wgSquidServers)){
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array_pop($hopips);
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}
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$wgIP = trim(end($hopips));
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} else {
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$wgIP = getenv('REMOTE_ADDR');
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}
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$fname = 'Setup.php';
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wfProfileIn( $fname );
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global $wgUseDynamicDates;
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wfProfileIn( $fname.'-includes' );
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require_once( 'GlobalFunctions.php' );
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require_once( 'Namespace.php' );
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require_once( 'RecentChange.php' );
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require_once( 'User.php' );
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require_once( 'Skin.php' );
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require_once( 'OutputPage.php' );
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require_once( 'LinkCache.php' );
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require_once( 'Title.php' );
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require_once( 'Article.php' );
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require_once( 'MagicWord.php' );
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require_once( 'memcached-client.php' );
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require_once( 'Block.php' );
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require_once( 'SearchEngine.php' );
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require_once( 'DifferenceEngine.php' );
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require_once( 'MessageCache.php' );
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require_once( 'BlockCache.php' );
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require_once( 'Parser.php' );
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require_once( 'ParserCache.php' );
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require_once( 'WebRequest.php' );
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require_once( 'LoadBalancer.php' );
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$wgRequest = new WebRequest();
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wfProfileOut( $fname.'-includes' );
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wfProfileIn( $fname.'-memcached' );
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global $wgUser, $wgLang, $wgOut, $wgTitle;
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global $wgArticle, $wgDeferredUpdateList, $wgLinkCache;
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global $wgMemc, $wgMagicWords, $wgMwRedir, $wgDebugLogFile;
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global $wgMessageCache, $wgUseMemCached, $wgUseDatabaseMessages;
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global $wgMsgCacheExpiry, $wgCommandLineMode;
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global $wgBlockCache, $wgParserCache, $wgParser, $wgDBConnections;
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global $wgLoadBalancer, $wgDBservers;
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global $wgDBserver, $wgDBuser, $wgDBpassword, $wgDBname, $wgDBtype;
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global $wgFullyInitialised;
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# Useful debug output
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if ( $wgCommandLineMode ) {
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# wfDebug( '"' . implode( '" "', $argv ) . '"' );
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} elseif ( function_exists( 'getallheaders' ) ) {
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wfDebug( "\nStart request\n" );
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wfDebug( $_SERVER['REQUEST_METHOD'] . ' ' . $_SERVER['REQUEST_URI'] . "\n" );
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$headers = getallheaders();
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foreach ($headers as $name => $value) {
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wfDebug( "$name: $value\n" );
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}
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wfDebug( "\n" );
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} else {
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wfDebug( $_SERVER['REQUEST_METHOD'] . ' ' . $_SERVER['REQUEST_URI'] . "\n" );
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}
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# Set up Memcached
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#
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class MemCachedClientforWiki extends memcached {
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function _debugprint( $text ) {
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wfDebug( "memcached: $text\n" );
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}
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}
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# FakeMemCachedClient imitates the API of memcached-client v. 0.1.2.
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# It acts as a memcached server with no RAM, that is, all objects are
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# cleared the moment they are set. All set operations succeed and all
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# get operations return null.
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class FakeMemCachedClient {
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function add ($key, $val, $exp = 0) { return true; }
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function decr ($key, $amt=1) { return null; }
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function delete ($key, $time = 0) { return false; }
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function disconnect_all () { }
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function enable_compress ($enable) { }
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function forget_dead_hosts () { }
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function get ($key) { return null; }
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function get_multi ($keys) { return array_pad(array(), count($keys), null); }
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function incr ($key, $amt=1) { return null; }
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function replace ($key, $value, $exp=0) { return false; }
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function run_command ($sock, $cmd) { return null; }
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function set ($key, $value, $exp=0){ return true; }
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function set_compress_threshold ($thresh){ }
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function set_debug ($dbg) { }
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function set_servers ($list) { }
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}
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if( $wgUseMemCached ) {
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$wgMemc = new MemCachedClientforWiki( array('persistant' => true) );
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$wgMemc->set_servers( $wgMemCachedServers );
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$wgMemc->set_debug( $wgMemCachedDebug );
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$messageMemc = &$wgMemc;
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} else {
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$wgMemc = new FakeMemCachedClient();
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# Give the message cache a separate cache in the DB.
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# This is a speedup over separately querying every message used
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require_once( 'ObjectCache.php' );
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$messageMemc = new MediaWikiBagOStuff('objectcache');
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}
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wfProfileOut( $fname.'-memcached' );
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wfProfileIn( $fname.'-SetupSession' );
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if( !$wgCommandLineMode && ( isset( $_COOKIE[ini_get('session.name')] ) || isset( $_COOKIE[$wgDBname.'Password'] ) ) ) {
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User::SetupSession();
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$wgSessionStarted = true;
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} else {
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$wgSessionStarted = false;
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}
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wfProfileOut( $fname.'-SetupSession' );
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wfProfileIn( $fname.'-database' );
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if ( !$wgDBservers ) {
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$wgDBservers = array(array(
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'host' => $wgDBserver,
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'user' => $wgDBuser,
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'password' => $wgDBpassword,
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'dbname' => $wgDBname,
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'type' => $wgDBtype,
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'load' => 1
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));
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}
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$wgLoadBalancer = LoadBalancer::newFromParams( $wgDBservers );
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$wgLoadBalancer->loadMasterPos();
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wfProfileOut( $fname.'-database' );
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wfProfileIn( $fname.'-language' );
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require_once( 'languages/Language.php' );
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$wgMessageCache = new MessageCache;
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$wgLangClass = 'Language' . ucfirst( $wgLanguageCode );
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if( ! class_exists( $wgLangClass ) || ($wgLanguageCode == 'en' && !$wgUseLatin1) ) {
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# Default to English/UTF-8
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require_once( 'languages/LanguageUtf8.php' );
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$wgLangClass = 'LanguageUtf8';
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}
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$wgLang = new $wgLangClass();
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if ( !is_object($wgLang) ) {
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print "No language class ($wgLang)\N";
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}
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if( $wgUseLatin1 && $wgLanguageCode != 'en' ) {
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# For non-UTF-8 non-English.
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require_once( 'languages/LanguageLatin1.php' );
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$xxx = new LanguageLatin1( $wgLang );
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unset( $wgLang );
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$wgLang = $xxx;
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}
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wfProfileOut( $fname.'-language' );
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wfProfileIn( $fname.'-MessageCache' );
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$wgMessageCache->initialise( $messageMemc, $wgUseDatabaseMessages, $wgMsgCacheExpiry, $wgDBname );
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wfProfileOut( $fname.'-MessageCache' );
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wfProfileIn( $fname.'-OutputPage' );
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$wgOut = new OutputPage();
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wfDebug( "\n\n" );
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wfProfileOut( $fname.'-OutputPage' );
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wfProfileIn( $fname.'-DateFormatter' );
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if ( $wgUseDynamicDates ) {
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require_once( 'DateFormatter.php' );
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global $wgDateFormatter;
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$wgDateFormatter = new DateFormatter;
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}
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wfProfileOut( $fname.'-DateFormatter' );
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wfProfileIn( $fname.'-BlockCache' );
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$wgBlockCache = new BlockCache( true );
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wfProfileOut( $fname.'-BlockCache' );
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wfProfileIn( $fname.'-User' );
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if( $wgCommandLineMode ) {
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# Used for some maintenance scripts; user session cookies can screw things up
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# when the database is in an in-between state.
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$wgUser = new User();
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} else {
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$wgUser = User::loadFromSession();
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}
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wfProfileOut( $fname.'-User' );
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wfProfileIn( $fname.'-misc' );
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$wgDeferredUpdateList = array();
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$wgLinkCache = new LinkCache();
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$wgMagicWords = array();
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$wgMwRedir =& MagicWord::get( MAG_REDIRECT );
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$wgParserCache = new ParserCache();
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$wgParser = new Parser();
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$wgOut->setParserOptions( ParserOptions::newFromUser( $wgUser ) );
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$wgDBConnections = array();
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wfSeedRandom();
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# Placeholders in case of DB error
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$wgTitle = Title::newFromText( wfMsg( 'badtitle' ) );
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$wgArticle = new Article($wgTitle);
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wfProfileOut( $fname.'-misc' );
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wfProfileIn( $fname.'-extensions' );
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# Extension setup functions
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# Entries should be added to this variable during the inclusion
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# of the extension file. This allows the extension to perform
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# any necessary initialisation in the fully initialised environment
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foreach ( $wgExtensionFunctions as $func ) {
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$func();
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}
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$wgFullyInitialised = true;
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wfProfileOut( $fname.'-extensions' );
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wfProfileOut( $fname );
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?>
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