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 if( !isset( $wgProfiling ) )
  26         $wgProfiling = false;
  27
  28 require_once( 'AutoLoader.php' );
  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
  48 wfProfileIn( $fname.'-exception' );
  49 require_once( 'Exception.php' );
  50 wfInstallExceptionHandler();
  51 wfProfileOut( $fname.'-exception' );
  52
  53 wfProfileIn( $fname.'-includes' );
  54
  55 require_once( 'GlobalFunctions.php' );
  56 require_once( 'Hooks.php' );
  57 require_once( 'Namespace.php' );
  58 require_once( 'User.php' );
  59 require_once( 'Skin.php' );
  60 require_once( 'OutputPage.php' );
  61 require_once( 'MagicWord.php' );
  62 require_once( 'Block.php' );
  63 require_once( 'MessageCache.php' );
  64 require_once( 'Parser.php' );
  65 require_once( 'LoadBalancer.php' );
  66 require_once( 'HistoryBlob.php' );
  67 require_once( 'ProxyTools.php' );
  68 require_once( 'ObjectCache.php' );
  69
  70 if ( $wgUseDynamicDates ) {
  71         require_once( 'DateFormatter.php' );
  72 }
  73
  74 wfProfileOut( $fname.'-includes' );
  75 wfProfileIn( $fname.'-misc1' );
  76
  77 $wgIP = false; # Load on demand
  78 $wgRequest = new WebRequest();
  79 if ( function_exists( 'posix_uname' ) ) {
  80         $wguname = posix_uname();
  81         $wgNodeName = $wguname['nodename'];
  82 } else {
  83         $wgNodeName = '';
  84 }
  85
  86 # Useful debug output
  87 if ( $wgCommandLineMode ) {
  88         # wfDebug( '"' . implode( '"  "', $argv ) . '"' );
  89 } elseif ( function_exists( 'getallheaders' ) ) {
  90         wfDebug( "\n\nStart request\n" );
  91         wfDebug( $_SERVER['REQUEST_METHOD'] . ' ' . $_SERVER['REQUEST_URI'] . "\n" );
  92         $headers = getallheaders();
  93         foreach ($headers as $name => $value) {
  94                 wfDebug( "$name: $value\n" );
  95         }
  96         wfDebug( "\n" );
  97 } elseif( isset( $_SERVER['REQUEST_URI'] ) ) {
  98         wfDebug( $_SERVER['REQUEST_METHOD'] . ' ' . $_SERVER['REQUEST_URI'] . "\n" );
  99 }
 100
 101 if ( $wgSkipSkin ) {
 102         $wgSkipSkins[] = $wgSkipSkin;
 103 }
 104
 105 $wgUseEnotif = $wgEnotifUserTalk || $wgEnotifWatchlist;
 106
 107 wfProfileOut( $fname.'-misc1' );
 108 wfProfileIn( $fname.'-memcached' );
 109
 110 $wgMemc =& wfGetMainCache();
 111 $messageMemc =& wfGetMessageCacheStorage();
 112 $parserMemc =& wfGetParserCacheStorage();
 113
 114 wfDebug( 'Main cache: ' . get_class( $wgMemc ) .
 115        "\nMessage cache: " . get_class( $messageMemc ) .
 116            "\nParser cache: " . get_class( $parserMemc ) . "\n" );
 117
 118 wfProfileOut( $fname.'-memcached' );
 119 wfProfileIn( $fname.'-SetupSession' );
 120
 121 if ( $wgDBprefix ) {
 122         $wgCookiePrefix = $wgDBname . '_' . $wgDBprefix;
 123 } elseif ( $wgSharedDB ) {
 124         $wgCookiePrefix = $wgSharedDB;
 125 } else {
 126         $wgCookiePrefix = $wgDBname;
 127 }
 128
 129 # If session.auto_start is there, we can't touch session name
 130 #
 131 if (!ini_get('session.auto_start')) {
 132         session_name( $wgCookiePrefix . '_session' );
 133 }
 134
 135 if( !$wgCommandLineMode && ( isset( $_COOKIE[session_name()] ) || isset( $_COOKIE[$wgCookiePrefix.'Token'] ) ) ) {
 136         wfIncrStats( 'request_with_session' );
 137         User::SetupSession();
 138         $wgSessionStarted = true;
 139 } else {
 140         wfIncrStats( 'request_without_session' );
 141         $wgSessionStarted = false;
 142 }
 143
 144 wfProfileOut( $fname.'-SetupSession' );
 145 wfProfileIn( $fname.'-database' );
 146
 147 if ( !$wgDBservers ) {
 148         $wgDBservers = array(array(
 149                 'host' => $wgDBserver,
 150                 'user' => $wgDBuser,
 151                 'password' => $wgDBpassword,
 152                 'dbname' => $wgDBname,
 153                 'type' => $wgDBtype,
 154                 'load' => 1,
 155                 'flags' => ($wgDebugDumpSql ? DBO_DEBUG : 0) | DBO_DEFAULT
 156         ));
 157 }
 158 $wgLoadBalancer = LoadBalancer::newFromParams( $wgDBservers, false, $wgMasterWaitTimeout );
 159 $wgLoadBalancer->loadMasterPos();
 160
 161 wfProfileOut( $fname.'-database' );
 162 wfProfileIn( $fname.'-language1' );
 163
 164 require_once( "$IP/languages/Language.php" );
 165
 166 function setupLangObj($langclass) {
 167         global $IP;
 168
 169         if( ! class_exists( $langclass ) ) {
 170                 # Default to English/UTF-8
 171                 $baseclass = 'LanguageUtf8';
 172                 require_once( "$IP/languages/$baseclass.php" );
 173                 $lc = strtolower(substr($langclass, 8));
 174                 $snip = "
 175                         class $langclass extends $baseclass {
 176                                 function getVariants() {
 177                                         return array(\"$lc\");
 178                                 }
 179
 180                         }";
 181                 eval($snip);
 182         }
 183
 184         $lang = new $langclass();
 185
 186         return $lang;
 187 }
 188
 189 # $wgLanguageCode may be changed later to fit with user preference.
 190 # The content language will remain fixed as per the configuration,
 191 # so let's keep it.
 192 $wgContLanguageCode = $wgLanguageCode;
 193 $wgContLangClass = 'Language' . str_replace( '-', '_', ucfirst( $wgContLanguageCode ) );
 194
 195 $wgContLang = setupLangObj( $wgContLangClass );
 196 $wgContLang->initEncoding();
 197
 198 wfProfileOut( $fname.'-language1' );
 199 wfProfileIn( $fname.'-User' );
 200
 201 # Skin setup functions
 202 # Entries can be added to this variable during the inclusion
 203 # of the extension file. Skins can then perform any necessary initialisation.
 204 #
 205 foreach ( $wgSkinExtensionFunctions as $func ) {
 206         call_user_func( $func );
 207 }
 208
 209 if( !is_object( $wgAuth ) ) {
 210         require_once( 'AuthPlugin.php' );
 211         $wgAuth = new AuthPlugin();
 212 }
 213
 214 if( $wgCommandLineMode ) {
 215         # Used for some maintenance scripts; user session cookies can screw things up
 216         # when the database is in an in-between state.
 217         $wgUser = new User();
 218         # Prevent loading User settings from the DB.
 219         $wgUser->setLoaded( true );
 220 } else {
 221         $wgUser = null;
 222         wfRunHooks('AutoAuthenticate',array(&$wgUser));
 223         if ($wgUser === null) {
 224                 $wgUser = User::loadFromSession();
 225         }
 226 }
 227
 228 wfProfileOut( $fname.'-User' );
 229 wfProfileIn( $fname.'-language2' );
 230
 231 // wgLanguageCode now specifically means the UI language
 232 $wgLanguageCode = $wgRequest->getText('uselang', '');
 233 if ($wgLanguageCode == '')
 234         $wgLanguageCode = $wgUser->getOption('language');
 235 # Validate $wgLanguageCode, which will soon be sent to an eval()
 236 if( empty( $wgLanguageCode ) || !preg_match( '/^[a-z]+(-[a-z]+)?$/', $wgLanguageCode ) ) {
 237         $wgLanguageCode = $wgContLanguageCode;
 238 }
 239
 240 $wgLangClass = 'Language'. str_replace( '-', '_', ucfirst( $wgLanguageCode ) );
 241
 242 if( $wgLangClass == $wgContLangClass ) {
 243         $wgLang = &$wgContLang;
 244 } else {
 245         wfSuppressWarnings();
 246         // Preload base classes to work around APC/PHP5 bug
 247         include_once("$IP/languages/$wgLangClass.deps.php");
 248         include_once("$IP/languages/$wgLangClass.php");
 249         wfRestoreWarnings();
 250
 251         $wgLang = setupLangObj( $wgLangClass );
 252 }
 253
 254 wfProfileOut( $fname.'-language2' );
 255 wfProfileIn( $fname.'-MessageCache' );
 256
 257 $wgMessageCache = new MessageCache;
 258 $wgMessageCache->initialise( $parserMemc, $wgUseDatabaseMessages, $wgMsgCacheExpiry, $wgDBname);
 259
 260 wfProfileOut( $fname.'-MessageCache' );
 261
 262 #
 263 # I guess the warning about UI switching might still apply...
 264 #
 265 # FIXME: THE ABOVE MIGHT BREAK NAMESPACES, VARIABLES,
 266 # SEARCH INDEX UPDATES, AND MANY MANY THINGS.
 267 # DO NOT USE THIS MODE EXCEPT FOR TESTING RIGHT NOW.
 268 #
 269 # To disable it, the easiest thing could be to uncomment the
 270 # following; they should effectively disable the UI switch functionality
 271 #
 272 # $wgLangClass = $wgContLangClass;
 273 # $wgLanguageCode = $wgContLanguageCode;
 274 # $wgLang = $wgContLang;
 275 #
 276 # TODO: Need to change reference to $wgLang to $wgContLang at proper
 277 #       places, including namespaces, dates in signatures, magic words,
 278 #       and links
 279 #
 280 # TODO: Need to look at the issue of input/output encoding
 281 #
 282
 283
 284 wfProfileIn( $fname.'-OutputPage' );
 285
 286 $wgOut = new OutputPage();
 287
 288 wfProfileOut( $fname.'-OutputPage' );
 289 wfProfileIn( $fname.'-misc2' );
 290
 291 $wgDeferredUpdateList = array();
 292 $wgPostCommitUpdateList = array();
 293
 294 $wgMagicWords = array();
 295 $wgMwRedir =& MagicWord::get( MAG_REDIRECT );
 296
 297 if ( $wgUseXMLparser ) {
 298         require_once( 'ParserXML.php' );
 299         $wgParser = new ParserXML();
 300 } else {
 301         $wgParser = new Parser();
 302 }
 303 $wgOut->setParserOptions( ParserOptions::newFromUser( $wgUser ) );
 304 $wgMsgParserOptions = ParserOptions::newFromUser($wgUser);
 305 wfSeedRandom();
 306
 307 # Placeholders in case of DB error
 308 $wgTitle = Title::makeTitle( NS_SPECIAL, 'Error' );
 309 $wgArticle = new Article($wgTitle);
 310
 311 wfProfileOut( $fname.'-misc2' );
 312 wfProfileIn( $fname.'-extensions' );
 313
 314 # Extension setup functions for extensions other than skins
 315 # Entries should be added to this variable during the inclusion
 316 # of the extension file. This allows the extension to perform
 317 # any necessary initialisation in the fully initialised environment
 318 foreach ( $wgExtensionFunctions as $func ) {
 319         call_user_func( $func );
 320 }
 321
 322 // For compatibility
 323 wfRunHooks( 'LogPageValidTypes', array( &$wgLogTypes ) );
 324 wfRunHooks( 'LogPageLogName', array( &$wgLogNames ) );
 325 wfRunHooks( 'LogPageLogHeader', array( &$wgLogHeaders ) );
 326 wfRunHooks( 'LogPageActionText', array( &$wgLogActions ) );
 327
 328
 329 wfDebug( "\n" );
 330 $wgFullyInitialised = true;
 331 wfProfileOut( $fname.'-extensions' );
 332 wfProfileOut( $fname );
 333
 334 }
 335 ?>