2 # The main wiki script and things like database
3 # conversion and maintenance scripts all share a
4 # common setup of including lots of classes and
5 # setting up a few globals.
8 global $wgProfiling, $wgProfileSampleRate, $wgIP, $wgUseSquid;
10 if( !isset( $wgProfiling ) )
13 if ( $wgProfiling and (0 == rand() %
$wgProfileSampleRate ) ) {
14 require_once( 'Profiling.php' );
16 function wfProfileIn( $fn = '' ) {}
17 function wfProfileOut( $fn = '' ) {}
18 function wfGetProfilingOutput( $s, $e ) {}
19 function wfProfileClose() {}
22 /* collect the originating ips */
23 if( $wgUseSquid && isset( $_SERVER['HTTP_X_FORWARDED_FOR'] ) ) {
24 # If the web server is behind a reverse proxy, we need to find
25 # out where our requests are really coming from.
26 $hopips = array_map( 'trim', explode( ',', $_SERVER['HTTP_X_FORWARDED_FOR'] ) );
28 while(in_array(trim(end($hopips)), $wgSquidServers)){
31 $wgIP = trim(end($hopips));
33 $wgIP = getenv('REMOTE_ADDR');
38 wfProfileIn( $fname );
39 global $wgUseDynamicDates;
40 wfProfileIn( $fname.'-includes' );
42 require_once( 'GlobalFunctions.php' );
43 require_once( 'Namespace.php' );
44 require_once( 'RecentChange.php' );
45 require_once( 'Skin.php' );
46 require_once( 'OutputPage.php' );
47 require_once( 'User.php' );
48 require_once( 'LinkCache.php' );
49 require_once( 'Title.php' );
50 require_once( 'Article.php' );
51 require_once( 'MagicWord.php' );
52 require_once( 'memcached-client.php' );
53 require_once( 'Block.php' );
54 require_once( 'SearchEngine.php' );
55 require_once( 'DifferenceEngine.php' );
56 require_once( 'MessageCache.php' );
57 require_once( 'BlockCache.php' );
58 require_once( 'Parser.php' );
59 require_once( 'ParserCache.php' );
60 require_once( 'WebRequest.php' );
61 require_once( 'SpecialPage.php' );
63 $wgRequest = new WebRequest();
67 wfProfileOut( $fname.'-includes' );
68 wfProfileIn( $fname.'-memcached' );
69 global $wgUser, $wgLang, $wgOut, $wgTitle;
70 global $wgArticle, $wgDeferredUpdateList, $wgLinkCache;
71 global $wgMemc, $wgMagicWords, $wgMwRedir, $wgDebugLogFile;
72 global $wgMessageCache, $wgUseMemCached, $wgUseDatabaseMessages;
73 global $wgMsgCacheExpiry, $wgDBname, $wgCommandLineMode;
74 global $wgBlockCache, $wgParserCache, $wgParser, $wgDontTrustMemcachedWithImportantStuff;
77 if ( $wgCommandLineMode ) {
78 # wfDebug( '"' . implode( '" "', $argv ) . '"' );
79 } elseif ( function_exists( 'getallheaders' ) ) {
80 wfDebug( "\nStart request\n" );
81 wfDebug( $_SERVER['REQUEST_METHOD'] . ' ' . $_SERVER['REQUEST_URI'] . "\n" );
82 $headers = getallheaders();
83 foreach ($headers as $name => $value) {
84 wfDebug( "$name: $value\n" );
88 wfDebug( $_SERVER['REQUEST_METHOD'] . ' ' . $_SERVER['REQUEST_URI'] . "\n" );
93 class MemCachedClientforWiki
extends memcached
{
94 function _debugprint( $text ) {
95 wfDebug( "memcached: $text\n" );
99 # FakeMemCachedClient imitates the API of memcached-client v. 0.1.2.
100 # It acts as a memcached server with no RAM, that is, all objects are
101 # cleared the moment they are set. All set operations succeed and all
102 # get operations return null.
104 class FakeMemCachedClient
{
105 function add ($key, $val, $exp = 0) { return true; }
106 function decr ($key, $amt=1) { return null; }
107 function delete ($key, $time = 0) { return false; }
108 function disconnect_all () { }
109 function enable_compress ($enable) { }
110 function forget_dead_hosts () { }
111 function get ($key) { return null; }
112 function get_multi ($keys) { return array_pad(array(), count($keys), null); }
113 function incr ($key, $amt=1) { return null; }
114 function replace ($key, $value, $exp=0) { return false; }
115 function run_command ($sock, $cmd) { return null; }
116 function set ($key, $value, $exp=0){ return true; }
117 function set_compress_threshold ($thresh){ }
118 function set_debug ($dbg) { }
119 function set_servers ($list) { }
122 if( $wgUseMemCached ) {
123 $wgMemc = new MemCachedClientforWiki( array('persistant' => true) );
124 $wgMemc->set_servers( $wgMemCachedServers );
125 $wgMemc->set_debug( $wgMemCachedDebug );
127 # Test it to see if it's working
128 # This is necessary because otherwise wfMsg would be extremely inefficient
129 if ( !$wgMemc->set( 'test', '', 0 ) ) {
130 wfDebug( "Memcached failed setup test - connection error?\n" );
131 $wgUseMemCached = false;
132 $wgMemc = new FakeMemCachedClient();
134 $messageMemc = &$wgMemc;
136 $wgMemc = new FakeMemCachedClient();
138 # Give the message cache a separate cache in the DB.
139 # This is a speedup over separately querying every message used
140 require_once( 'ObjectCache.php' );
141 $messageMemc = new MediaWikiBagOStuff('objectcache');
144 wfProfileOut( $fname.'-memcached' );
145 wfProfileIn( $fname.'-language' );
146 require_once( 'languages/Language.php' );
148 $wgMessageCache = new MessageCache
;
150 $wgLangClass = 'Language' . ucfirst( $wgLanguageCode );
151 if( ! class_exists( $wgLangClass ) ||
($wgLanguageCode == 'en' && strcasecmp( $wgInputEncoding, 'utf-8' ) == 0 ) ) {
152 require_once( 'languages/LanguageUtf8.php' );
153 $wgLangClass = 'LanguageUtf8';
156 $wgLang = new $wgLangClass();
157 if ( !is_object($wgLang) ) {
158 print "No language class ($wgLang)\N";
160 wfProfileOut( $fname.'-language' );
161 wfProfileIn( $fname.'-MessageCache' );
163 $wgMessageCache->initialise( $messageMemc, $wgUseDatabaseMessages, $wgMsgCacheExpiry, $wgDBname );
165 wfProfileOut( $fname.'-MessageCache' );
166 wfProfileIn( $fname.'-OutputPage' );
168 $wgOut = new OutputPage();
171 wfProfileOut( $fname.'-OutputPage' );
172 wfProfileIn( $fname.'-DateFormatter' );
174 if ( $wgUseDynamicDates ) {
175 require_once( 'DateFormatter.php' );
176 global $wgDateFormatter;
177 $wgDateFormatter = new DateFormatter
;
180 wfProfileOut( $fname.'-DateFormatter' );
181 wfProfileIn( $fname.'-SetupSession' );
183 if( !$wgCommandLineMode && ( isset( $_COOKIE[ini_get('session.name')] ) ||
isset( $_COOKIE[$wgDBname.'Password'] ) ) ) {
184 User
::SetupSession();
187 wfProfileOut( $fname.'-SetupSession' );
188 wfProfileIn( $fname.'-BlockCache' );
190 $wgBlockCache = new BlockCache( true );
192 wfProfileOut( $fname.'-BlockCache' );
193 wfProfileIn( $fname.'-User' );
195 if( $wgCommandLineMode ) {
196 # Used for some maintenance scripts; user session cookies can screw things up
197 # when the database is in an in-between state.
198 $wgUser = new User();
200 $wgUser = User
::loadFromSession();
203 wfProfileOut( $fname.'-User' );
204 wfProfileIn( $fname.'-misc' );
206 $wgDeferredUpdateList = array();
207 $wgLinkCache = new LinkCache();
208 $wgMagicWords = array();
209 $wgMwRedir =& MagicWord
::get( MAG_REDIRECT
);
210 $wgParserCache = new ParserCache();
211 $wgParser = new Parser();
212 $wgOut->setParserOptions( ParserOptions
::newFromUser( $wgUser ) );
214 if ( !$wgAllowSysopQueries ) {
215 SpecialPage
::removePage( 'Asksql' );
218 # Placeholders in case of DB error
219 $wgTitle = Title
::newFromText( wfMsg( 'badtitle' ) );
220 $wgArticle = new Article($wgTitle);
222 wfProfileOut( $fname.'-misc' );
223 wfProfileIn( $fname.'-extensions' );
225 # Extension setup functions
226 # Entries should be added to this variable during the inclusion
227 # of the extension file. This allows the extension to perform
228 # any necessary initialisation in the fully initialised environment
229 foreach ( $wgExtensionFunctions as $func ) {
233 wfProfileOut( $fname.'-extensions' );
234 wfProfileOut( $fname );