includes/Setup.php

   1 <?php
   2 /**
   3  * Include most things that's need to customize the site
   4  */
   5
   6 /**
   7  * This file is not a valid entry point, perform no further processing unless
   8  * MEDIAWIKI is defined
   9  */
  10 if( defined( 'MEDIAWIKI' ) ) {
  11
  12 # The main wiki script and things like database
  13 # conversion and maintenance scripts all share a
  14 # common setup of including lots of classes and
  15 # setting up a few globals.
  16 #
  17
  18 global $wgProfiling, $wgProfileSampleRate, $wgIP, $wgUseSquid;
  19
  20 if( !isset( $wgProfiling ) )
  21         $wgProfiling = false;
  22
  23 if ( $wgProfiling and (0 == rand() % $wgProfileSampleRate ) ) {
  24         require_once( 'Profiling.php' );
  25 } else {
  26         function wfProfileIn( $fn = '' ) {}
  27         function wfProfileOut( $fn = '' ) {}
  28         function wfGetProfilingOutput( $s, $e ) {}
  29         function wfProfileClose() {}
  30 }
  31
  32 /* collect the originating ips */
  33 if( $wgUseSquid && isset( $_SERVER['HTTP_X_FORWARDED_FOR'] ) ) {
  34         # If the web server is behind a reverse proxy, we need to find
  35         # out where our requests are really coming from.
  36         $hopips = array_map( 'trim', explode( ',', $_SERVER['HTTP_X_FORWARDED_FOR'] ) );
  37
  38         while(in_array(trim(end($hopips)), $wgSquidServers)){
  39                 array_pop($hopips);
  40         }
  41         $wgIP = trim(end($hopips));
  42 } else {
  43         $wgIP = getenv('REMOTE_ADDR');
  44 }
  45
  46
  47 $fname = 'Setup.php';
  48 wfProfileIn( $fname );
  49 global $wgUseDynamicDates;
  50 wfProfileIn( $fname.'-includes' );
  51
  52 require_once( 'GlobalFunctions.php' );
  53 require_once( 'Namespace.php' );
  54 require_once( 'RecentChange.php' );
  55 require_once( 'User.php' );
  56 require_once( 'Skin.php' );
  57 require_once( 'OutputPage.php' );
  58 require_once( 'LinkCache.php' );
  59 require_once( 'Title.php' );
  60 require_once( 'Article.php' );
  61 require_once( 'MagicWord.php' );
  62 require_once( 'Block.php' );
  63 require_once( 'MessageCache.php' );
  64 require_once( 'BlockCache.php' );
  65 require_once( 'Parser.php' );
  66 require_once( 'ParserCache.php' );
  67 require_once( 'WebRequest.php' );
  68 require_once( 'LoadBalancer.php' );
  69
  70 $wgRequest = new WebRequest();
  71
  72
  73
  74 wfProfileOut( $fname.'-includes' );
  75 wfProfileIn( $fname.'-misc1' );
  76 global $wgUser, $wgLang, $wgOut, $wgTitle;
  77 global $wgArticle, $wgDeferredUpdateList, $wgLinkCache;
  78 global $wgMemc, $wgMagicWords, $wgMwRedir, $wgDebugLogFile;
  79 global $wgMessageCache, $wgUseMemCached, $wgUseDatabaseMessages;
  80 global $wgMsgCacheExpiry, $wgCommandLineMode;
  81 global $wgBlockCache, $wgParserCache, $wgParser, $wgDBConnections;
  82 global $wgLoadBalancer, $wgDBservers, $wgDebugDumpSql;
  83 global $wgDBserver, $wgDBuser, $wgDBpassword, $wgDBname, $wgDBtype;
  84 global $wgUseOldExistenceCheck, $wgEnablePersistentLC;
  85
  86 global $wgFullyInitialised;
  87
  88 # Useful debug output
  89 if ( $wgCommandLineMode ) {
  90         # wfDebug( '"' . implode( '"  "', $argv ) . '"' );
  91 } elseif ( function_exists( 'getallheaders' ) ) {
  92         wfDebug( "\nStart request\n" );
  93         wfDebug( $_SERVER['REQUEST_METHOD'] . ' ' . $_SERVER['REQUEST_URI'] . "\n" );
  94         $headers = getallheaders();
  95         foreach ($headers as $name => $value) {
  96                 wfDebug( "$name: $value\n" );
  97         }
  98         wfDebug( "\n" );
  99 } else {
 100         wfDebug( $_SERVER['REQUEST_METHOD'] . ' ' . $_SERVER['REQUEST_URI'] . "\n" );
 101 }
 102
 103 # Disable linkscc except if the old existence check method is enabled
 104 if (!$wgUseOldExistenceCheck) {
 105         $wgEnablePersistentLC = false;
 106 }
 107
 108 wfProfileOut( $fname.'-misc1' );
 109 wfProfileIn( $fname.'-memcached' );
 110
 111 # FakeMemCachedClient imitates the API of memcached-client v. 0.1.2.
 112 # It acts as a memcached server with no RAM, that is, all objects are
 113 # cleared the moment they are set. All set operations succeed and all
 114 # get operations return null.
 115
 116 if( $wgUseMemCached ) {
 117         # Set up Memcached
 118         #
 119         require_once( 'memcached-client.php' );
 120
 121         /**
 122          *
 123          */
 124         class MemCachedClientforWiki extends memcached {
 125                 function _debugprint( $text ) {
 126                         wfDebug( "memcached: $text\n" );
 127                 }
 128         }
 129
 130         $wgMemc = new MemCachedClientforWiki( array('persistant' => true) );
 131         $wgMemc->set_servers( $wgMemCachedServers );
 132         $wgMemc->set_debug( $wgMemCachedDebug );
 133
 134         $messageMemc = &$wgMemc;
 135 } elseif ( $wgUseTurckShm ) {
 136         # Turck shared memory
 137         #
 138         require_once( 'ObjectCache.php' );
 139         $wgMemc = new TurckBagOStuff;
 140         $messageMemc = &$wgMemc;
 141 } else {
 142         /**
 143          * No shared memory
 144          */
 145         class FakeMemCachedClient {
 146                 function add ($key, $val, $exp = 0) { return true; }
 147                 function decr ($key, $amt=1) { return null; }
 148                 function delete ($key, $time = 0) { return false; }
 149                 function disconnect_all () { }
 150                 function enable_compress ($enable) { }
 151                 function forget_dead_hosts () { }
 152                 function get ($key) { return null; }
 153                 function get_multi ($keys) { return array_pad(array(), count($keys), null); }
 154                 function incr ($key, $amt=1) { return null; }
 155                 function replace ($key, $value, $exp=0) { return false; }
 156                 function run_command ($sock, $cmd) { return null; }
 157                 function set ($key, $value, $exp=0){ return true; }
 158                 function set_compress_threshold ($thresh){ }
 159                 function set_debug ($dbg) { }
 160                 function set_servers ($list) { }
 161         }
 162         $wgMemc = new FakeMemCachedClient();
 163
 164         # Give the message cache a separate cache in the DB.
 165         # This is a speedup over separately querying every message used
 166         require_once( 'ObjectCache.php' );
 167         $messageMemc = new MediaWikiBagOStuff('objectcache');
 168 }
 169
 170 wfProfileOut( $fname.'-memcached' );
 171 wfProfileIn( $fname.'-SetupSession' );
 172
 173 if( !$wgCommandLineMode && ( isset( $_COOKIE[ini_get('session.name')] ) || isset( $_COOKIE[$wgDBname.'Password'] ) ) ) {
 174         User::SetupSession();
 175         $wgSessionStarted = true;
 176 } else {
 177         $wgSessionStarted = false;
 178 }
 179
 180 wfProfileOut( $fname.'-SetupSession' );
 181 wfProfileIn( $fname.'-database' );
 182
 183 if ( !$wgDBservers ) {
 184         $wgDBservers = array(array(
 185                 'host' => $wgDBserver,
 186                 'user' => $wgDBuser,
 187                 'password' => $wgDBpassword,
 188                 'dbname' => $wgDBname,
 189                 'type' => $wgDBtype,
 190                 'load' => 1,
 191                 'flags' => ($wgDebugDumpSql ? DBO_DEBUG : 0) | DBO_DEFAULT
 192         ));
 193 }
 194 $wgLoadBalancer = LoadBalancer::newFromParams( $wgDBservers );
 195 $wgLoadBalancer->loadMasterPos();
 196
 197 wfProfileOut( $fname.'-database' );
 198 wfProfileIn( $fname.'-language' );
 199 require_once( 'languages/Language.php' );
 200
 201 $wgMessageCache = new MessageCache;
 202
 203 $wgLangClass = 'Language' . ucfirst( $wgLanguageCode );
 204 if( ! class_exists( $wgLangClass ) || ($wgLanguageCode == 'en' && !$wgUseLatin1) ) {
 205         # Default to English/UTF-8
 206         require_once( 'languages/LanguageUtf8.php' );
 207         $wgLangClass = 'LanguageUtf8';
 208 }
 209
 210 $wgLang = new $wgLangClass();
 211 if ( !is_object($wgLang) ) {
 212         print "No language class ($wgLang)\N";
 213 }
 214
 215 if( $wgUseLatin1 && $wgLanguageCode != 'en' ) {
 216         # For non-UTF-8 non-English.
 217         require_once( 'languages/LanguageLatin1.php' );
 218         $xxx = new LanguageLatin1( $wgLang );
 219         unset( $wgLang );
 220         $wgLang = $xxx;
 221 }
 222 wfProfileOut( $fname.'-language' );
 223 wfProfileIn( $fname.'-MessageCache' );
 224
 225 $wgMessageCache->initialise( $messageMemc, $wgUseDatabaseMessages, $wgMsgCacheExpiry, $wgDBname );
 226
 227 wfProfileOut( $fname.'-MessageCache' );
 228 wfProfileIn( $fname.'-OutputPage' );
 229
 230 $wgOut = new OutputPage();
 231 wfDebug( "\n\n" );
 232
 233 wfProfileOut( $fname.'-OutputPage' );
 234 wfProfileIn( $fname.'-DateFormatter' );
 235
 236 if ( $wgUseDynamicDates ) {
 237         require_once( 'DateFormatter.php' );
 238         global $wgDateFormatter;
 239         $wgDateFormatter = new DateFormatter;
 240 }
 241
 242 wfProfileOut( $fname.'-DateFormatter' );
 243 wfProfileIn( $fname.'-BlockCache' );
 244
 245 $wgBlockCache = new BlockCache( true );
 246
 247 wfProfileOut( $fname.'-BlockCache' );
 248 wfProfileIn( $fname.'-User' );
 249
 250 # Extension setup functions
 251 # Entries should be added to this variable during the inclusion
 252 # of the extension file. This allows the extension to perform
 253 # any necessary initialisation in the fully initialised environment
 254 foreach ( $wgSkinExtensionFunctions as $func ) {
 255         $func();
 256 }
 257
 258 if( $wgCommandLineMode ) {
 259         # Used for some maintenance scripts; user session cookies can screw things up
 260         # when the database is in an in-between state.
 261         $wgUser = new User();
 262 } else {
 263         $wgUser = User::loadFromSession();
 264 }
 265
 266 wfProfileOut( $fname.'-User' );
 267 wfProfileIn( $fname.'-misc2' );
 268
 269 $wgDeferredUpdateList = array();
 270 $wgLinkCache = new LinkCache();
 271 $wgMagicWords = array();
 272 $wgMwRedir =& MagicWord::get( MAG_REDIRECT );
 273 $wgParserCache = new ParserCache();
 274 $wgParser = new Parser();
 275 $wgOut->setParserOptions( ParserOptions::newFromUser( $wgUser ) );
 276 $wgDBConnections = array();
 277 wfSeedRandom();
 278
 279 # Placeholders in case of DB error
 280 $wgTitle = Title::newFromText( wfMsg( 'badtitle' ) );
 281 $wgArticle = new Article($wgTitle);
 282
 283 wfProfileOut( $fname.'-misc2' );
 284 wfProfileIn( $fname.'-extensions' );
 285
 286 # Extension setup functions
 287 # Entries should be added to this variable during the inclusion
 288 # of the extension file. This allows the extension to perform
 289 # any necessary initialisation in the fully initialised environment
 290 foreach ( $wgExtensionFunctions as $func ) {
 291         $func();
 292 }
 293
 294 $wgFullyInitialised = true;
 295 wfProfileOut( $fname.'-extensions' );
 296 wfProfileOut( $fname );
 297
 298 }
 299 ?>