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