includes/Setup.php

   1 <?php
   2 /**
   3  * Include most things that's need to customize the site
   4  * @package MediaWiki
   5  */
   6
   7 /**
   8  * This file is not a valid entry point, perform no further processing unless
   9  * MEDIAWIKI is defined
  10  */
  11 if( defined( 'MEDIAWIKI' ) ) {
  12
  13 # The main wiki script and things like database
  14 # conversion and maintenance scripts all share a
  15 # common setup of including lots of classes and
  16 # setting up a few globals.
  17 #
  18
  19 // Check to see if we are at the file scope
  20 if ( !isset( $wgVersion ) ) {
  21         echo "Error, Setup.php must be included from the file scope, after DefaultSettings.php\n";
  22         die( -1 );
  23 }
  24
  25 require('AutoLoader.php');
  26
  27 if( !isset( $wgProfiling ) )
  28         $wgProfiling = false;
  29
  30 if ( function_exists( 'wfProfileIn' ) ) {
  31         /* nada, everything should be done already */
  32 } elseif ( $wgProfiling and (0 == rand() % $wgProfileSampleRate ) ) {
  33         $wgProfiling = true;
  34         if ($wgProfilerType == "") {
  35                 $wgProfiler = new Profiler();
  36         } else {
  37                 $prclass="Profiler{$wgProfilerType}";
  38                 require_once( $prclass.".php" );
  39                 $wgProfiler = new $prclass();
  40         }
  41 } else {
  42         require_once( 'ProfilerStub.php' );
  43 }
  44
  45 $fname = 'Setup.php';
  46 wfProfileIn( $fname );
  47 wfProfileIn( $fname.'-includes' );
  48
  49 require_once( 'GlobalFunctions.php' );
  50 require_once( 'Hooks.php' );
  51 require_once( 'Namespace.php' );
  52 require_once( 'MagicWord.php' );
  53
  54
  55 wfProfileOut( $fname.'-includes' );
  56 wfProfileIn( $fname.'-misc1' );
  57
  58 $wgIP = false; # Load on demand
  59 $wgRequest = new WebRequest();
  60 if ( function_exists( 'posix_uname' ) ) {
  61         $wguname = posix_uname();
  62         $wgNodeName = $wguname['nodename'];
  63 } else {
  64         $wgNodeName = '';
  65 }
  66
  67 # Useful debug output
  68 if ( $wgCommandLineMode ) {
  69         # wfDebug( '"' . implode( '"  "', $argv ) . '"' );
  70 } elseif ( function_exists( 'getallheaders' ) ) {
  71         wfDebug( "\n\nStart request\n" );
  72         wfDebug( $_SERVER['REQUEST_METHOD'] . ' ' . $_SERVER['REQUEST_URI'] . "\n" );
  73         $headers = getallheaders();
  74         foreach ($headers as $name => $value) {
  75                 wfDebug( "$name: $value\n" );
  76         }
  77         wfDebug( "\n" );
  78 } elseif( isset( $_SERVER['REQUEST_URI'] ) ) {
  79         wfDebug( $_SERVER['REQUEST_METHOD'] . ' ' . $_SERVER['REQUEST_URI'] . "\n" );
  80 }
  81
  82 if ( $wgSkipSkin ) {
  83         $wgSkipSkins[] = $wgSkipSkin;
  84 }
  85
  86 $wgUseEnotif = $wgEnotifUserTalk || $wgEnotifWatchlist;
  87
  88 wfProfileOut( $fname.'-misc1' );
  89 wfProfileIn( $fname.'-memcached' );
  90
  91 $wgMemc =& ObjectCacheManager::getMainCache();
  92 $messageMemc =& ObjectCacheManager::getMessageCache();
  93 $parserMemc =& ObjectCacheManager::getParserCache();
  94
  95 wfDebug( 'Main cache: ' . get_class( $wgMemc ) .
  96        "\nMessage cache: " . get_class( $messageMemc ) .
  97            "\nParser cache: " . get_class( $parserMemc ) . "\n" );
  98
  99 wfProfileOut( $fname.'-memcached' );
 100 wfProfileIn( $fname.'-SetupSession' );
 101
 102 if ( $wgDBprefix ) {
 103         $wgCookiePrefix = $wgDBname . '_' . $wgDBprefix;
 104 } elseif ( $wgSharedDB ) {
 105         $wgCookiePrefix = $wgSharedDB;
 106 } else {
 107         $wgCookiePrefix = $wgDBname;
 108 }
 109
 110 # If session.auto_start is there, we can't touch session name
 111 #
 112 if (!ini_get('session.auto_start')) {
 113         session_name( $wgCookiePrefix . '_session' );
 114 }
 115
 116 if( !$wgCommandLineMode && ( isset( $_COOKIE[session_name()] ) || isset( $_COOKIE[$wgCookiePrefix.'Token'] ) ) ) {
 117         wfIncrStats( 'request_with_session' );
 118         User::SetupSession();
 119         $wgSessionStarted = true;
 120 } else {
 121         wfIncrStats( 'request_without_session' );
 122         $wgSessionStarted = false;
 123 }
 124
 125 wfProfileOut( $fname.'-SetupSession' );
 126 wfProfileIn( $fname.'-database' );
 127
 128 if ( !$wgDBservers ) {
 129         $wgDBservers = array(array(
 130                 'host' => $wgDBserver,
 131                 'user' => $wgDBuser,
 132                 'password' => $wgDBpassword,
 133                 'dbname' => $wgDBname,
 134                 'type' => $wgDBtype,
 135                 'load' => 1,
 136                 'flags' => ($wgDebugDumpSql ? DBO_DEBUG : 0) | DBO_DEFAULT
 137         ));
 138 }
 139 $wgLoadBalancer = LoadBalancer::newFromParams( $wgDBservers, false, $wgMasterWaitTimeout );
 140 $wgLoadBalancer->loadMasterPos();
 141
 142 wfProfileOut( $fname.'-database' );
 143 wfProfileIn( $fname.'-language1' );
 144
 145 require_once( "$IP/languages/Language.php" );
 146
 147 function setupLangObj($langclass) {
 148         global $IP;
 149
 150         if( ! class_exists( $langclass ) ) {
 151                 # Default to English/UTF-8
 152                 $baseclass = 'LanguageUtf8';
 153                 require_once( "$IP/languages/$baseclass.php" );
 154                 $lc = strtolower(substr($langclass, 8));
 155                 $snip = "
 156                         class $langclass extends $baseclass {
 157                                 function getVariants() {
 158                                         return array(\"$lc\");
 159                                 }
 160
 161                         }";
 162                 eval($snip);
 163         }
 164
 165         $lang = new $langclass();
 166
 167         return $lang;
 168 }
 169
 170 # $wgLanguageCode may be changed later to fit with user preference.
 171 # The content language will remain fixed as per the configuration,
 172 # so let's keep it.
 173 $wgContLanguageCode = $wgLanguageCode;
 174 $wgContLangClass = 'Language' . str_replace( '-', '_', ucfirst( $wgContLanguageCode ) );
 175
 176 $wgContLang = setupLangObj( $wgContLangClass );
 177 $wgContLang->initEncoding();
 178
 179 wfProfileOut( $fname.'-language1' );
 180 wfProfileIn( $fname.'-User' );
 181
 182 # Skin setup functions
 183 # Entries can be added to this variable during the inclusion
 184 # of the extension file. Skins can then perform any necessary initialisation.
 185 #
 186 foreach ( $wgSkinExtensionFunctions as $func ) {
 187         call_user_func( $func );
 188 }
 189
 190 if( !is_object( $wgAuth ) ) {
 191         $wgAuth = new AuthPlugin();
 192 }
 193
 194 if( $wgCommandLineMode ) {
 195         # Used for some maintenance scripts; user session cookies can screw things up
 196         # when the database is in an in-between state.
 197         $wgUser = new User();
 198         # Prevent loading User settings from the DB.
 199         $wgUser->setLoaded( true );
 200 } else {
 201         $wgUser = null;
 202         wfRunHooks('AutoAuthenticate',array(&$wgUser));
 203         if ($wgUser === null) {
 204                 $wgUser = User::loadFromSession();
 205         }
 206 }
 207
 208 wfProfileOut( $fname.'-User' );
 209 wfProfileIn( $fname.'-language2' );
 210
 211 // wgLanguageCode now specifically means the UI language
 212 $wgLanguageCode = $wgRequest->getText('uselang', '');
 213 if ($wgLanguageCode == '')
 214         $wgLanguageCode = $wgUser->getOption('language');
 215 # Validate $wgLanguageCode, which will soon be sent to an eval()
 216 if( empty( $wgLanguageCode ) || !preg_match( '/^[a-z]+(-[a-z]+)?$/', $wgLanguageCode ) ) {
 217         $wgLanguageCode = $wgContLanguageCode;
 218 }
 219
 220 $wgLangClass = 'Language'. str_replace( '-', '_', ucfirst( $wgLanguageCode ) );
 221
 222 if( $wgLangClass == $wgContLangClass ) {
 223         $wgLang = &$wgContLang;
 224 } else {
 225         wfSuppressWarnings();
 226         // Preload base classes to work around APC/PHP5 bug
 227         include_once("$IP/languages/$wgLangClass.deps.php");
 228         include_once("$IP/languages/$wgLangClass.php");
 229         wfRestoreWarnings();
 230
 231         $wgLang = setupLangObj( $wgLangClass );
 232 }
 233
 234 wfProfileOut( $fname.'-language2' );
 235 wfProfileIn( $fname.'-MessageCache' );
 236
 237 $wgMessageCache = new MessageCache;
 238 $wgMessageCache->initialise( $parserMemc, $wgUseDatabaseMessages, $wgMsgCacheExpiry, $wgDBname);
 239
 240 wfProfileOut( $fname.'-MessageCache' );
 241
 242 #
 243 # I guess the warning about UI switching might still apply...
 244 #
 245 # FIXME: THE ABOVE MIGHT BREAK NAMESPACES, VARIABLES,
 246 # SEARCH INDEX UPDATES, AND MANY MANY THINGS.
 247 # DO NOT USE THIS MODE EXCEPT FOR TESTING RIGHT NOW.
 248 #
 249 # To disable it, the easiest thing could be to uncomment the
 250 # following; they should effectively disable the UI switch functionality
 251 #
 252 # $wgLangClass = $wgContLangClass;
 253 # $wgLanguageCode = $wgContLanguageCode;
 254 # $wgLang = $wgContLang;
 255 #
 256 # TODO: Need to change reference to $wgLang to $wgContLang at proper
 257 #       places, including namespaces, dates in signatures, magic words,
 258 #       and links
 259 #
 260 # TODO: Need to look at the issue of input/output encoding
 261 #
 262
 263
 264 wfProfileIn( $fname.'-OutputPage' );
 265
 266 $wgOut = new OutputPage();
 267
 268 wfProfileOut( $fname.'-OutputPage' );
 269 wfProfileIn( $fname.'-misc2' );
 270
 271 $wgDeferredUpdateList = array();
 272 $wgPostCommitUpdateList = array();
 273
 274 $wgMagicWords = array();
 275 $wgMwRedir =& MagicWord::get( MAG_REDIRECT );
 276
 277 if ( $wgUseXMLparser ) {
 278         $wgParser = new ParserXML();
 279 } else {
 280         $wgParser = new Parser();
 281 }
 282 $wgOut->setParserOptions( ParserOptions::newFromUser( $wgUser ) );
 283 $wgMsgParserOptions = ParserOptions::newFromUser($wgUser);
 284 wfSeedRandom();
 285
 286 # Placeholders in case of DB error
 287 $wgTitle = Title::makeTitle( NS_SPECIAL, 'Error' );
 288 $wgArticle = new Article($wgTitle);
 289
 290 wfProfileOut( $fname.'-misc2' );
 291 wfProfileIn( $fname.'-extensions' );
 292
 293 # Extension setup functions for extensions other than skins
 294 # Entries should be added to this variable during the inclusion
 295 # of the extension file. This allows the extension to perform
 296 # any necessary initialisation in the fully initialised environment
 297 foreach ( $wgExtensionFunctions as $func ) {
 298         call_user_func( $func );
 299 }
 300
 301 // For compatibility
 302 wfRunHooks( 'LogPageValidTypes', array( &$wgLogTypes ) );
 303 wfRunHooks( 'LogPageLogName', array( &$wgLogNames ) );
 304 wfRunHooks( 'LogPageLogHeader', array( &$wgLogHeaders ) );
 305 wfRunHooks( 'LogPageActionText', array( &$wgLogActions ) );
 306
 307
 308 wfDebug( "\n" );
 309 $wgFullyInitialised = true;
 310 wfProfileOut( $fname.'-extensions' );
 311 wfProfileOut( $fname );
 312
 313 }
 314 ?>